60results about How to "Meet volume requirements" patented technology

The invention discloses a bed and chair integrated nursing system with a rotary seat and a urination and defecation processing device. The bed and chair integrated nursing system comprises a bed and chair conversion mechanism and a bed body. The bed body is of a rectangular steel frame structure, and the bed and chair conversion mechanism is placed in the bed body. An opening is arranged on the side face of the bed body, and the bed and chair conversion mechanism moves along a marking line through recognition of a bottom surface paste marking line to achieve butting and separation of a bed and a chair. The bed and chair conversion mechanism can achieve conversion between the bed and the chair and adopts a seat structure capable of rotating 90 degrees so as to enable the bed and the chair to be high in reliability in a butting and separation process. Simultaneously, the urination and defecation processing device is arranged in the bed and chair conversion mechanism, and the problem of urination and defecation processing of a user is solved effectively. The bed and chair integrated nursing system has the advantages of being capable of moving in a narrow space and capable of butting against the bed body to form a bed state, simultaneously having personal hygiene assisting function, effectively solving the problem of urination and defecation self-care of the user and the like, being capable of greatly reducing burden of nursing staff, and simultaneously enlarging activity range and independent living capacity of a person who is cared.

The invention belongs to the technical field of microwaves and relates to a broadband circularly-polarized antenna for a handheld through-wall radar. The broadband circularly-polarized antenna sequentially comprises a radome 1, an upper patch layer 2, a PMI foam layer 3, a lower patch layer 4, a first dielectric layer 5, a coupling slot layer 6, a second dielectric layer 7, a feed microstrip 8 anda metal back cavity 9 from top to bottom, wherein a hollowed-out slot 61 is formed in the coupling slot layer 6; the shape of the feed microstrip 8 is a combined shape of a rectangle and a sector; and the metal back cavity 9 is a rectangular cavity with an open surface at one end and the open surface is toward the feed microstrip. According to the broadband circularly-polarized antenna, the technologies, such as slot-coupling feeding, a low-dielectric constant layer, laminated microstrip-coupled patches and a reflecting back cavity are comprehensively adopted, so that the antenna reaches theimpedance and beam bandwidth of over 30% under low profile requirements. The target of double-patch coupling resonance is achieved through tuning the transverse dimensions of upper and lower patches,and circular polarization is achieved by adopting the cutting angle design of the rectangular patches.

The invention provides a refrigerator and a method for controlling the same. The refrigerator comprises a freezing space, a refrigerating space, a temperature varying space, a compressor, a condenser, a freezing evaporator, a refrigerating evaporator, a freezing air channel, a refrigerating air channel, a temperature varying air channel, refrigerating fans and a refrigerating air door, wherein the outlet end of the freezing air channel is communicated with the freezing space; the outlet end of the refrigerating air channel is communicated with the refrigerating space; the temperature varying air channel is connected in parallel with the refrigerating air channel; the outlet end of the temperature varying air channel is communicated with the temperature varying space; the refrigerating fans are arranged between the refrigerating evaporator and the temperature varying air channel and between the refrigerating evaporator and the refrigerating air channel, and are used for blowing cold air which is generated by the refrigerating evaporator into the inlet end of the temperature varying air channel and the inlet end of the refrigerating air channel; and the refrigerating air door is arranged at the inlet end of the refrigerating air channel. By the refrigerator, temperatures of the freezing space, the refrigerating space and the temperature varying space can be controlled independently and are not interfered with one another.

Disclosed is a slot antenna. The slot antenna comprises a low frequency antenna and a high frequency antenna disposed separately. The low frequency antenna and the high frequency antenna have a feeder line, an impedance matching network, and a feeding point, respectively. The feeder line of the low frequency antenna is electrically connected to the impedance matching network and the feeding point of the low frequency antenna. The feeder line of the high frequency antenna is electrically connected to impedance matching network and the feeding point of the high frequency antenna. The high and low frequency antennas may be disposed on the surface layer and / or bottom layer of a printed circuit board (PCB), respectively. Further disclosed is a smart terminal. By adopting the technical solution of the present invention, the performance of high and low frequency radiation of an antenna is enhanced, and at the same time the work requirement of a carrier aggregation technology and the volume requirement of a smart terminal are met.

The invention provides a determining method for the maximum design capacity of a high-frequency transformer. The determining method includes the steps that 1, the magnetic core loss coefficient of the high-frequency transformer is obtained; 2, the magnetic core area Ap, magnetic core volume Vcore and magnetic core window area Wa of the high-frequency transformer and a temperature increase coefficient Ks are obtained; 3, the optimal working magnetic flux density value Bopt of the high-frequency transformer is calculated; 4, the value of primary design capacity S0, the winding number of a primary winding and a secondary winding of the high-frequency transformer, an alternate-current winding coefficient Fr and the average winding length MLT of the primary winding and the secondary winding are calculated; 5, the maximum design capacity Sm is calculated; 6, new maximum design capacity S'm is calculated; 7, the new maximum design capacity S'm and the maximum design capacity Sm are compared. Compared with the prior art, under the condition that the structure and size of a magnetic core are fixed, the maximum design capacity value of the transformer can be convenient to determine.

The invention provides a heat radiating method and device, wherein the heat radiating method comprises the following steps of: detecting a temperature of a terminal device in real time; and driving a telescopic heat radiating fin to extend towards the outside of the terminal device according to the temperature and an unfolding condition. The heat radiating method and device not only meet the requirements on the terminal for the appearance and the volume, but also realize good heat radiation.

The invention provides an array structure and a realization method of an MEMS electro-spray thruster. The realization method comprises the following steps that 101, deep silicon etching and wet etching are conducted on a silicon wafer to obtain a mounting base (1); 102, an emitter (2) is obtained by conducting electrochemical etching on porous materials; 103, the emitter (2) is bonded on the mounting base (1); 104, a positioning and insulation layer (3) is obtained through silicon-glass-silicon anode bonding, glass etching and deep silicon etching; 105, the positioning and insulation layer (3) is bonded and connected to four corners of the mounting base (1) through an epoxy resin; 106, an electrode mounting frame (4) is obtained through deep silicon etching and wet etching conducted on the silicon wafer, and the electrode mounting frame (4) is bonded to the positioning and insulation layer (3) through the epoxy resin; 107, an extracting pole (5) and an accelerating pole (6) are obtained by conducting metal sputtering and electroplating on silicon based materials; and 108, a storing tank (7) storing propellants is connected with the emitter (2) through a boss on the storing tank (7).

The invention provides a current supplying component of a current protection device. The current supplying component comprises a power supply module and a low-voltage high current module. The power supply module supplies electricity for the low-voltage high current module; the low-voltage high current module comprises a low-voltage voltage limiting unit and a relay unit; loads of a tripping mechanism in the protection device are connected in parallel to two ends of the low-voltage voltage limiting unit; a protection triggering signal is responded, the relay unit conducts an access of the low-voltage voltage limiting unit, thus high current under low voltage is provided for the loads of the tripping mechanism; and the current supplying component can meet the small volume requirement of the protection device, the material cost of the protection device is reduced, and meanwhile low voltage and high current can be provided for the loads.

The invention provides a minitype capsule coffee machine. The minitype capsule coffee machine comprises a shell, a water tank, a boiler, a water pump, a capsule containing cavity, a guide tube, a brewing device and a water dripping box, wherein the water tank, the boiler, the water pump, the capsule containing cavity and the guide tube are arranged in the shell, and the brewing device and the water dripping box are arranged on the outside of the shell. The water outlet end of the guide tube is arranged in the capsule containing cavity, the brewing device is pivoted to the shell, and the side, facing the shell, of the brewing device extends outside to be provided with a hollow water jet cutter corresponding to the capsule containing cavity. The water dripping box is provided with at least one waste water collecting groove which extends into a first opening, the water dripping box is connected with the shell through the waste water collecting groove, and meanwhile the water dripping box can be dismounted from the shell and is assembled to the brewing device. According to the minitype capsule coffee machine, through reasonable structural arrangement, a puncturing device and a water storage device used for storing waste water are simplified, and a recovering device used for recovering coffee capsule waste shells is omitted. Accordingly, the structure is relatively simple, the size is smaller, and the demand for the size of the capsule coffee machine is met.

The disclosed miniaturized multi-frequency antenna comprises: a uniform-section conductor connection part for signal I / O, a LF first radiation part on one side of the connection part for forming three main segments along two planes, and a HF second radiation part forming two segments on one plane, wherein the ends of two radiation parts are paralleled for coupling performance. This invention reduces size and improves entire performance.

The invention discloses a rodless hydraulic transmission oil pumping system. The rodless hydraulic transmission oil pumping system comprises a hydraulic cylinder located at the underground and a hydraulic pump located at the ground; the hydraulic cylinder is arranged in the place with required depth in an oil pumping pipe pillar; the hydraulic pump is connected to the hydraulic cylinder through the hydraulic pipeline, and the hydraulic pump is the hydraulic pump for alternating sucking and discharging fluid at divided period; a fluid inlet and a fluid discharge opening are combined into one; the upper end of the hydraulic cylinder is connected to a production oil pipe, and the lower end is connected to a tail pipe; the middle part of the hydraulic cylinder is further provided with a piston rod driven by the hydraulic pump, the hydraulic pipeline transmits the fluid with alternative change in discharge and suction by the hydraulic pump to the underground hydraulic cylinder in the form of reciprocating motion; a piston in the hydraulic cylinder performs vertical reciprocating movement, and the hydraulic transmission oil exploration between the tail pipe and the production oil pipe is realized; therefore, the rodless hydraulic transmission oil pumping system is simple in structure, the fluid pipeline connection is more direct, the loop is effectively simplified, and efficiency is higher, and loss is less; the transmission is more controllable, the maintenance is convenient, and application scale is wide; besides, the pumping efficiency is greatly improved.

The invention discloses a pendulum sweeping and in-flight calibration assembly for double spectrum imagers. The assembly comprises two reflection pendulum mirrors which are arranged in a V shape and an aslant arranged calibration reflection mirror, the relative location between the two pendulum mirrors and the reflection mirror is fixed, and the two pendulum mirrors and the reflection mirror can rotate at plus or minus 90 degrees along a rotary shaft and are used for achieving a high-precision synchronous pendulum sweeping and in-flight calibration function of the double spectrum imagers. The pendulum sweeping and in-flight calibration assembly for the double spectrum imagers is compact in structure and easy to install and adjust because only one motion component is needed, and meets the requirements for weight, volume and reliability of board equipment well.

The invention relates to a cross line polarization monopole antenna for a pica-satellite. The cross line polarization monopole antenna comprises a first fixing medium, a second fixing medium, a folded metal connecting part, a folded medium, a first vibrator and a second vibrator. The first vibrator and the second vibrator are formed by elastic plate pieces. A feed IPX connector is arranged on the folded medium. The folded metal connecting part is connected with a feed point of the folded medium. According to the technical scheme, the first vibrator and the second vibrator are attached and fixed to the surface of a shell of the satellite in a wound mode before the satellite is delivered from a cabin, the structure is compact, and increase of the size of the satellite is avoided; after the satellite is delivered from the cabin, the first vibrator and the second vibrator are unfolded and restored to form a communication state of mutual perpendicularity, the first vibrator and the second vibrator are connected through the folded metal connecting part and fed through the feed point, vertically-polarized waves and horizontally-polarized waves can be radiated without an additional matching feed network, directional diagrams of the horizontally-polarized waves and directional diagrams of the vertically-polarized waves are mutually complemented, and satellite-ground communication when the satellite is in any state can be achieved by means of matching of a ground station of cross line polarization.

The invention discloses a full-automatic test system for gas content of shale. The full-automatic test system comprises a first gas collecting device, a second gas collecting device and a valve position switching device, wherein the first gas collecting device and the second gas collecting device are both connected with the valve position switching device; the valve position switching device is connected with a water feeding device and a shale desorbing device; the first gas collecting device and the second gas collecting device are alternately connected with the water feeding device and the shale desorbing device through the valve position switching of the valve position switching device, so that the continuous water draining and gas collection can be realized between the first gas collecting device and the second gas collecting device; the valve position switching of the valve position switching device is controlled by a controller; liquid level sensors are arranged in both of the first gas collecting device and the second gas collecting device; the liquid level sensors are used for acquiring the water level elevation and transmitting to the controller in the manner of measuring the pressure difference of the shale gas and water in the process of water draining and gas collection. The full-automatic test system for gas content of shale disclosed by the invention has stable and reliable performances, meets the design requirement, is high in accuracy, is high in reproducibility and high in degree of automation and has wide application prospect.

The invention relates to a precision reducer, which belongs to the field of machinery, and includes an intermediate meshing disk and an output disk, the output disk is engaged with the middle meshing disk, and the middle meshing disk moves around the axis of the output disk under the action of external power It performs revolution movement, and during the revolution process of the middle meshing disk, the middle meshing disk does not rotate; there is a difference in the number of teeth between the first teeth on the middle meshing disk and the second teeth on the output disk, and using the two There is a difference in the number of teeth between them, and the oscillating middle meshing disc pushes the output disc to rotate. The invention can prolong the service life of the reducer and control the volume of the reducer.

The invention relates to the technical field of agricultural information, and provides an agricultural nitrogen-containing pollution gas real-time monitoring system and a real-time monitoring method.The system provided by the invention comprises a filter, an enrichment device, a catalytic device, a second test unit, an electromagnetic valve, an air pump, an acquisition card, a relay and a temperature controller, wherein the catalytic device can convert nitrogen-containing pollution gas in the gas into nitrogen dioxide, and the concentration of the nitrogen dioxide is detected through the second test unit, so the concentration of the nitrogen-containing pollution gas generated by agricultural planting activities can be obtained. Furthermore, the system provided by the invention further comprises a first test unit, and the first test unit and the second test unit are combined, so the ammonia gas concentration and the nitrogen dioxide concentration can be obtained as required. When the system provided by the invention is used for monitoring the agricultural nitrogen-containing pollution gas, the total concentration of the nitrogen-containing pollution gas, the ammonia gas concentration and the nitrogen dioxide concentration can be simply, quickly and real-timely monitored without depending on manual operation, and the problems of time and labor consumption and the like of a traditional detection method are solved.

The invention discloses a double-drive structure for a stepping shaft of an ultrasonic scanning microscope and an adjusting method for the double-drive impulse parameter matching. The double-drive structure comprises a left driving unit, a right driving unit, a front support beam, a back support beam and an X-direction cross beam, wherein the front support beam and the back support beam are butted with the left driving unit and the right driving unit on the front side and the rear side respectively; the X-direction cross beam is connected with the left driving unit and the right driving unit. According to the invention, the double-side drive is adopted, an overlapping manner is adopted to form a gantry type architectural pattern at the high position, the problems that a gantry type architecture is twisted and deformed and greater vibration influence is generated as the single-side drive is adopted are avoided, the precision requirement for the machining of critical parts is easy to met, and the rigidity requirement of the overall architecture is ensured.

The invention discloses a miniature negative pressure jet mill having a crushing cavity with an ellipsoidal structure. The miniature negative pressure jet mill comprises a collecting device, a motor, a control mechanism, an output pipe and a feeding device, and also comprises a negative pressure device and a fluid jet mill, wherein an output device is communicated with the fluid jet mill through the output pipe; a crushing cavity which is partially in an ellipsoidal shape is arranged in the jet mill; airflow inlet channels are arranged in two ends of an oval long shaft of one cross section of the crushing cavity; a material is added to the fluid jet mill through the feeding device; the motor is connected with a grading mechanism of the fluid jet mill through a belt wheel mechanism; the output pipe is connected with the top end of the fluid jet mill; the collecting device is connected with the output pipe; the material is added to the crushing cavity of the fluid jet mill through the feeding device under the control of the control mechanism, airflow flowing inside from each airflow inlet channel is utilized to crush the material, and the output pipe generates pressure along the flow directions of the material and the gas by the negative pressure device, so that the crushed material is output to the collection device through the output pipe.

The invention is applicable to the technical field of antennas, and provides a slot antenna and an intelligent terminal. The slot antenna comprises a metal board, a low-frequency resonant circuit and a high-frequency resonant circuit, wherein the metal board comprises a ground end and an antenna end, a slot is formed between the ground end and the antenna end, and the low-frequency resonant circuit and the high-frequency resonant circuit are respectively connected onto two sides of the slot for realizing carrier aggregation between the low frequency band and the high frequency band. Through arranging the high-frequency resonant circuit and the low-frequency resonant circuit in the middle of the slot and working in a time-sharing or simultaneous mode via an independent feeder, an impedance matching network and a feed point, the high and low-frequency radiation performance of the slot antenna is improved, and the work requirements of the carrier aggregation technology and the size requirements of the intelligent terminal are met at the same time.

Disclosed is a cavity filter capable of adjusting coupling intensity. The cavity filter comprises a shell and a cover plate; a plurality of resonant cavities are formed in the shell in parallel at intervals; a resonant sheet is fixedly arranged on each resonant cavity; the resonant sheets are coupled and connected through different coupling sheets; semi-circular-arc surfaces are arranged on the two opposite side surfaces of each resonate cavity respectively; the semi-circular-arc surfaces of the two adjacent resonant cavities define a cylindrical adjustment cavity; an adjustor is arranged in the adjustment cavity movably up and down; and the adjustor passes through the cover plate, and by changing the extension depth of the adjustor to the adjustment cavity, the coupling strength between two adjacent resonant cavities can be changed. By virtue of the cavity filter capable of adjusting coupling intensity provided by the invention, the coupling strength between two adjacent resonant cavities can be adjusted flexibly, thereby satisfying the communication demand of different signals.

The invention provides a concrete pouring management method and system, electronic equipment and a medium, and the method comprises the steps that a constructor makes a demand request, a laboratory tester carries out the testing according to the demand request, and determines a construction mix proportion; the mixing plant receives the demand request and the construction mix proportion to performconcrete production; after the mixing plant completes concrete production, a transportation task instruction is sent out, the transportation task instruction is matched with a transportation vehicle,and the transportation vehicle receiving the transportation instruction transports concrete to a construction site for pouring; in the concrete pouring process, according to the construction progress,a constructor determines the tail disc square quantity in the last transport vehicle and feeds back the tail disc square quantity to a mixing plant for production, and the transport vehicle is matched with the tail disc square quantity. When the concrete needs to be constructed, a system error exists between the total demand quantity in the demand request and the actual demand quantity, the taildisc square quantity meeting the actual demand quantity is fed back to a mixing plant by monitoring the tail disc square quantity, and the square quantity requirement of concrete construction is met.

The invention discloses a manufacturing process of a subminiature-structure capacitor, and relates to a subminiature foil-type series-connection-structure thin-film capacitor and a manufacturing process of the subminiature foil-type series-connection-structure thin-film capacitor. The manufacturing process comprises the following steps of coiling, hot pressing, metal spraying, welding and packing, existing 3-mm-thick aluminum foils for 7.5 pitches are adopted as electrodes, three layers of electrodes are adopted, a layer of media is arranged under each electrode, the uppermost layer of electrode and the middle layer of electrode extend out of the edges of the media respectively, a metal spraying layer is arranged on the end surface of each electrode to be connected with the aluminum foil, a lead is welded to the metal spraying layers at the end surfaces and led out, the media and the electrodes are coiled and packaged with powder epoxy, and the capacitor is manufactured. The manufacturing process of the subminiature-structure capacitor is mainly used for overcoming the defects. The structure of the electrodes is changed, one layer of media is additionally arranged under each electrode, the wide aluminum foils serve as the electrodes, the distance between every two aluminum foils is reduced, the effective area is increased, utilization rate is improved, and the specific volume is increased.

Embodiments of the invention disclose a current-limiting circuit and an illumination device. The current-limiting circuit comprises a one-way thyristor Q1, a triode Q2, a switch S1, a resistor R1, a resistor R2, and a load RL. The collector electrode of the triode Q2 is connected with the anode of the one-way thyristor Q1. The base electrode of the triode Q2 is connected with the cathode of the one-way thyristor Q1. The resistor R2 is connected between the base electrode and the emitter electrode of the triode Q2. One end of the resistor R1 is connected with one end of the switch S1. The anode of the one-way thyristor Q1 is connected with the other end of the switch S1. The control electrode of the one-way thyristor Q1 is connected with the other end of the resistor R1. The anode of the one-way thyristor Q1 is connected with an input end. The emitter electrode of the triode Q2 is connected with the load RL. The current-limiting circuit and the illumination device are advantaged by simple structure and small volume, and provides safe and reliable current for the load.

The invention relates to a broadband antenna, and belongs to the field of antennae. The broadband antenna comprises a metal board and a circuit board. The metal board forms an oscillator arm of the broadband antenna, and a first feed point is arranged on the metal board. The circuit board comprises a metal layer, the metal layer forms the other oscillator arm of the broadband antenna, and the metal layer is provided with a second feed point. The metal board and the circuit board are adopted as the oscillator arms of the broadband antenna respectively, and the problems that a broadband antenna in the correlation technology is complex in structure and large in occupied space, needs many materials and does not meet the size requirement for current electronic equipment are solved. The effects of simplifying the structure of the broadband antenna, reducing the occupied space, saving the materials and meeting the size requirement for the current electronic equipment are achieved.

The invention discloses an auxiliary beam of a bogie. The auxiliary beam comprises a shell forming a closed inner cavity, the shell comprises a partition plate arranged in the inner cavity, the partition plate divides the inner cavity into a first cavity and a second cavity, and the shell is further provided with an auxiliary beam which penetrates through the inside and the outside and is provided with a first air chamber interface and a second air chamber interface that are respectively communicated with the first cavity and the second cavity; the shell is further provided with a first differential pressure valve connector and a second differential pressure valve connector which penetrate through the inside and the outside and are communicated with the first cavity and the second cavity respectively. According to the auxiliary beam, the auxiliary beam of the bogie frame not only serves as a connecting piece for connecting the front cross beam and the rear cross beam, but also is divided into the first cavity and the second cavity at the same time and can be communicated with the inner cavities of the cross beams, so that the auxiliary beam serves as an additional air chamber of an air spring installed on the bogie frame, and the volume of the additional air chamber is increased. In addition, the auxiliary beam provides installation space for the differential pressure valve at the same time, so that the structure of the framework is compact.

The invention discloses an extensible air filter element combination device. The extensible air filter element combination device comprises a first air filter element combination device, a second airfilter element combination device or a third air filter element combination device, the air filter element combination device comprises a hexahedron fixing piece and a first air filter element combination module, the first air filter element combination module achieves expansion connection through the hexahedron fixing piece, and the hexahedron fixing piece is provided with a through type intersection point connecting channel and a bolt channel. By adopting the filter element combination device, air filter elements are recombined and connected, the defects in the prior art are overcome, and the function expansion of various forms and quantities of the filter element modules is realized through various connection modes of the filter element modules.

The invention discloses a volume adjustable delivery locker arranged outdoor and a method. The volume adjustable delivery locker arranged outdoor comprises a shell, a cover plate arranged on the shell, a plurality of vertical separators arranged on the shell, and a plurality of independent spaces separated by each vertical separators; a door is arranged on each independent space, an electric control door lock is arranged on each door, and a number label is arranged on each door; the volume adjustable delivery locker further comprises a display arranged on the shell, wherein a plurality of keysare arranged on the display; the volume adjustable delivery locker further comprises a controller, a compressor, and a condenser containing refrigerant; the cross section of the shell is rectangular,a vertical opening is formed on the middle of the shell, a stand column used for supporting the cover plate is arranged in the vertical opening, four retractors are arranged on the cover plate, a vertically deployable drape is arranged on each retractor. According to the volume adjustable delivery locker arranged outdoor, the volume of each independent space can be changed, the working efficiencyis improved, and the labor cost is reduced; users storing fresh food in a short term, such as fruits is convenient, and the convenience is brought to the life of people.

A multi-spectrum image acquisition system, including a first spectroscope, a second spectroscope, a thermal infrared band imaging system, a sun-blind ultraviolet band imaging system and a visible light band imaging system, the imaging band of the thermal infrared band imaging system is 7.5 μm— 14 μm, the imaging band of the sun-blind ultraviolet band imaging system is 190nm-285nm, and the imaging band of the visible light band imaging system is 400nm-700nm; the first beam splitter is placed at an angle of 45° with the optical axis, and the target The light with a wavelength of 7.5 μm-14 μm in the light beam is transmitted to the thermal infrared band imaging system, and the part of the target beam containing the light signals of the sun-blind ultraviolet band and the visible light band is reflected into the second beam splitter; the first The second beam splitter is parallel to the first beam splitter, and the second beam splitter transmits or reflects the visible light with a wavelength of 400nm-700nm in the remaining part of the target beam to the visible light band imaging system, and transmits the light beam with a wavelength of 190nm-285nm Blind UV light reflection or transmission to solar-blind UV band imaging system.

A coffee machine (100) for coffee capsule includes a casing (10) , a capsule holder (50), a brewing unit (70) and a boiler (30). The casing (10) comprises a side panel (11) defining a a fixing hole (111) and a mounted hole (112). The brewing unit (70) defines a brewing chamber and a plurality of water jets (76) each communicating with the brewing chamber. A waste water container (80) defines a cavity and comprises a tongue (81) defining a water groove (811) communicating with the cavity. The brewing unit is pivotally mounted to the casing. The capsule holder is mounted to the side panel(11) and communicates with the fixing hole (111). When the brewing unit (70) is pivoted towards to the capsule holder (50), the water jets break the coffee capsule to brew coffee. The tongue (81) of waste water container (80) is detachably mounted to the mounted hole (112), and the waste water flows into the cavity via the water groove (811).