Coffee brewing device

Abstract

The utility model belongs to the technical field of coffee brewing equipment, and particularly relates to a coffee brewing device which comprises an installation frame, a cake pressing device, a brewing device and a push-press brewing device, a powder inlet hole, a cake pressing hole, a material returning hole and an installation groove are formed in the installation frame, the cake pressing device is installed on the installation frame, the cake pressing end of the cake pressing device is communicated with a water inlet pipe, and the cake pressing end of the cake pressing device is communicated with a water outlet pipe. The brewing device is installed in the installation groove, a powder inlet pipe of the brewing device penetrates through the powder inlet hole, a cake pressing brewing cavity and a material returning cavity which are communicated with each other are formed in the brewing device, a material returning opening is formed in one side face of the material returning cavity, the push plate brewing device is installed on the installation frame, and a push plate brewing head can abut against an opening in one end of the cake pressing brewing cavity. And a plurality of filtering holes are formed in the push plate brewing head and communicate with the coffee outlet pipeline, and through the structural arrangement, the coffee brewing device is small in size, fixed and easy to disassemble and clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of coffee brewing equipment, in particular to a coffee brewer. Background Art

[0002] The methods of brewing coffee include hand grinding with tools, semi-automatic brewing with machines and fully automatic brewing with machines. The equipment used for fully automatic coffee brewing with machines will automatically grind, press and then brew the coffee powder. The coffee brewed in this way uses less powder, is rich in oil and has a better fragrance. In the prior art, a coffee brewer is provided in the fully automatic coffee brewing equipment to realize the automatic connection of various coffee brewing processes. The coffee brewer is an important component of the coffee machine. Its function is to mix hot water and coffee powder evenly to make the coffee have a suitable concentration and a smoother taste. During the brewing process, the hot water and coffee powder pass through the filter plate of the brewer to filter out impurities and make the coffee more delicious. The coffee brewers used in the fully automatic coffee brewing equipment currently on the market have technical problems such as complex structure, difficulty in disassembly and cleaning, and high cost. Utility Model Content

[0003] The utility model aims to provide a coffee brewer, including the processes of automatically receiving powder, pressing powder into cakes, extracting, and automatically pouring out the cakes, aiming to solve the technical problems of the coffee brewer in the prior art, such as complex structure and large volume, the whole brewer device needs to be rotated and moved to achieve the purpose, easy failure, and difficult for users to disassemble and clean.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model provides a coffee brewer, comprising a mounting frame, a cake pressing device, a brewing device and a push plate brewing device, wherein:

[0005] A mounting frame, wherein the mounting frame is provided with a powder inlet hole, a cake pressing hole, a material return hole and a mounting groove, and the powder inlet hole, the cake pressing hole and the material return hole are all connected to the mounting groove;

[0006] A cake pressing device, the cake pressing device is installed on the mounting frame, and a cake pressing end of the cake pressing device passes through the cake pressing hole and extends toward the mounting groove, and the cake pressing end of the cake pressing device is connected to a water inlet pipe;

[0007] A brewing device, wherein the brewing device is installed in the installation groove, and the entire brewing device is fixed and does not move during operation. The powder inlet pipe of the brewing device is arranged through the powder inlet hole, and a cake pressing and brewing chamber and a material return chamber that are connected are arranged in the brewing device. The powder inlet pipe is connected to the cake pressing and brewing chamber, and a material return port is arranged on one side of the material return chamber, and a cake pressing end of the cake pressing device can extend into the cake pressing and brewing chamber for compressing powder cakes;

[0008] The push plate brewing device is installed on the mounting frame. The push plate brewing head of the push plate brewing device is slidably arranged in the discharging cavity, and the push plate brewing head is oppositely arranged with the pressing end of the cake pressing device. The push plate brewing head can be abutted against one end opening of the cake pressing and brewing cavity, and a plurality of filtering holes are arranged on the push plate brewing head, and each of the filtering holes communicates with the coffee liquid outlet pipe.

[0009] Preferably, the push plate brewing device includes a push plate brewing head, a first driving device and a feeding screw. The first driving device is installed on the mounting frame. The push plate brewing head is slidably arranged in the discharging cavity. The feeding screw passes through the discharging hole and is slidably connected with the discharging hole, and the driving gear of the first driving device is in threaded connection with the feeding screw.

[0010] Preferably, the push plate brewing head includes a liquid outlet support plate, a sealing ring, a moving plate, an outer connecting pipe and a connecting column. One end of the connecting column is rotatably connected with the end of the feeding screw, and the other end of the connecting column is connected with one side surface of the moving plate. The moving plate is slidably connected with the inner side wall of the discharging cavity. A water collecting boss protrudes from the other side surface of the moving plate. The sealing ring is sleeved on the outer side surface of the water collecting boss. The liquid outlet support plate covers the top of the water collecting boss. One end of the outer connecting pipe passes through the side surface of the moving plate and communicates with the water collecting boss.

[0011] Preferably, a water collecting groove and a connecting hole are arranged on the top of the water collecting boss. The connecting hole is located in the water collecting groove, and the connecting hole communicates with the outer connecting pipe. The liquid outlet support plate covers the water collecting groove.

[0012] Preferably, a plurality of supporting protrusions for supporting the liquid outlet support plate are arranged in the water collecting groove.

[0013] Preferably, the filtering holes are arranged on the surface of the liquid outlet support plate, and each of the filtering holes communicates with the water collecting groove.

[0014] Preferably, a closed annular protrusion extends laterally at the end of the connecting column, and the annular protrusion is rotatably connected with the end of the feeding screw by hooking.

[0015] Preferably, the cake pressing device includes a cake pressing screw and a second driving device. The second driving device is installed on the mounting frame. The cake pressing screw passes through the cake pressing hole and extends into the cake pressing and brewing cavity. The cake pressing screw is slidably connected with the cake pressing hole, and the cake pressing screw is in threaded connection with the driving gear of the second driving device. The end of the cake pressing screw communicates with a water inlet pipe.

[0016] Preferably, the cake pressing screw includes a screw main body and a cake pressing assembly. The screw main body extends through the cake pressing hole into the cake pressing brewing chamber, and the screw main body is threadedly connected to the driving gear of the second driving device. The cake pressing assembly is installed at one end of the screw main body facing the brewing device. The water inlet pipe passes through the screw main body and communicates with the cake pressing assembly. A number of water inlet holes are provided on the plane of the cake pressing assembly, and the water inlet holes communicate with the water inlet pipe.

[0017] At least one of the above one or more technical solutions in the coffee brewer provided by the embodiment of the present invention has the following technical effects:

[0018] The coffee brewer in the present invention is assembled by a mounting frame, a cake pressing device, a brewing device and a push plate brewing device. The mounting frame is used to fixedly install the cake pressing device, the brewing device and the push plate brewing device, and position the relative positions of the cake pressing device, the brewing device and the push plate brewing device. During production, an installation groove for installing the brewing device, a powder inlet hole for the powder inlet pipe above the brewing device to pass through, a cake pressing hole for the cake pressing end of the cake pressing device to move, a discharging hole for the pushing screw of the push plate brewing device to move, and an output groove for discharging the cake residue are provided on the mounting frame. The powder inlet hole, the cake pressing hole, the discharging hole and the output groove are all communicated with the installation groove. The cake pressing end of the cake pressing device is communicated with the water inlet pipe, so that while the cake pressing device has the function of pressing coffee powder into a cake, it can provide water for coffee brewing of the coffee brewer. A cake pressing brewing chamber and a discharging chamber that communicate with each other are provided on the brewing device. At the same time, a powder inlet pipe is also provided above the brewing device, and the powder inlet pipe communicates with the cake pressing brewing chamber. The other end of the cake pressing brewing chamber penetrates through one end of the brewing device. A discharging hole is provided on the side of the other end of the brewing device, and the discharging hole communicates with the discharging chamber for the pushing screw of the push plate brewing device to pass through. A discharging port is provided at the bottom of the brewing device, and the discharging port communicates with the discharging chamber. A fault plane is formed at the connection of the cake pressing brewing chamber and the discharging chamber, and the movement process of the push plate brewing head of the push plate brewing device is restricted by the fault plane. A plurality of filtering holes are provided on the end plane of the push plate brewing head, and the filtering holes are communicated with the coffee liquid outlet pipe connected to the push plate brewing head to realize the output of the brewed coffee liquid.

[0019] The cake pressing device, the cake pressing brewing chamber and the push plate brewing device are arranged concentrically, which can effectively ensure the coincidence degree of the moving paths of the cake pressing screw and the push plate brewing head, so that the pressure between the moving of the cake pressing screw and the push plate brewing head in the cake pressing brewing chamber and the inner side wall of the cake pressing brewing chamber is stable, and there will be no uneven force on different surfaces, resulting in serious wear and the occurrence of sealing gap wear, which affects the service life of the overall equipment.

[0020] During assembly, the push plate brewing head part is slidably installed in the discharging cavity of the brewing device. The driving part of the push plate brewing device is installed on the mounting bracket. The push plate brewing head and the pushing screw on its driving part are connected by a buckle, which is convenient for the disassembly and assembly of the two. The brewing device is installed in the mounting groove of the mounting bracket through a buckle, and the powder inlet pipe of the brewing device extends outside the mounting bracket through the powder inlet hole of the mounting bracket to facilitate the input of coffee powder. The cake pressing device is installed on the mounting bracket. At the same time, the cake pressing end of the cake pressing device passes through the cake pressing hole on the mounting bracket and extends towards the cake pressing brewing cavity of the brewing device, so that the cake pressing end of the cake pressing device can move into the cake pressing brewing cavity.

[0021] During operation, the pushing screw of the driving part of the push plate brewing device is used to push the push plate brewing head to move into the opening of the cake pressing brewing cavity. When it abuts against the fault surface, it stops moving, completely blocking one end opening of the cake pressing brewing cavity. The cake pressing end of the cake pressing device enters the opening part of the cake pressing brewing cavity driven by the screw, but does not block the passage of the powder inlet pipe, sealing one end opening of the cake pressing brewing cavity. The quantitatively ground coffee powder after grinding by the grinder drops into the cake pressing brewing cavity from the powder inlet pipe. After the loading is completed, the cake pressing end of the cake pressing device continues to extend into the cake pressing brewing cavity to extrude the coffee powder, and cooperates with the push plate brewing head to compress the coffee powder into a powder cake. Water is input through the water inlet pipe to brew and extract the compressed powder cake. The brewed coffee is output from the filter hole into the coffee outlet pipe to obtain coffee. After the brewing is completed, the water inlet pipe stops supplying water, and the push plate brewing head retracts, away from the opening of the cake pressing brewing cavity. The cake pressing end of the cake pressing device continues to extend into the cake pressing brewing cavity to push the powder cake out of the cake pressing brewing cavity into the discharging cavity, and then the powder cake drops and detaches from the discharging cavity through the discharging port. An induction magnet is provided at the end of the push plate brewing head to sense the position state, so as to judge the state of the brewing device. When the brewing device needs to be cleaned, the cake pressing end of the cake pressing device is withdrawn from the cake pressing brewing cavity, and at the same time, the push plate brewing head is kept in the discharging state. Press the quick buckle position of the brewing device to separate the buckle state between the brewing device and the mounting bracket, disassemble the brewing device, and then clean the brewing device. After the cleaning is completed, the brewing device is assembled into the mounting groove of the mounting bracket in a buckle manner again, and at the same time, the push plate brewing head is restored to the hanging connection state with the pushing screw of the driving device. Through the above structural settings, the simple disassembly and cleaning of the coffee brewer in the present application are realized. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1The effect diagram of the coffee brewer provided by the embodiment of the present utility model.

[0024] Figure 2 The effect diagram of the mounting bracket of the coffee brewer provided by the embodiment of the present utility model.

[0025] Figure 3 The combined effect diagram of the cake pressing device, brewing device and push plate brewing device of the coffee brewer provided by the embodiment of the present utility model.

[0026] Figure 4 The effect diagram of the brewing device of the coffee brewer provided by the embodiment of the present utility model.

[0027] Figure 5 The sectional view of the brewing device of the coffee brewer provided by the embodiment of the present utility model.

[0028] Figure 6 The effect diagram of the cake pressing device of the coffee brewer provided by the embodiment of the present utility model.

[0029] Figure 7 The effect diagram of the push plate brewing device of the coffee brewer provided by the embodiment of the present utility model.

[0030] Figure 8 The sectional view of the push plate brewing head of the coffee brewer provided by the embodiment of the present utility model.

[0031] Figure 9 The effect diagram of the push plate brewing head (without the liquid outlet support plate) of the coffee brewer provided by the embodiment of the present utility model.

[0032] Figure 10 The flow chart of the cake pressing and brewing method of the coffee brewer provided by the embodiment of the present utility model.

[0033] Among them, the reference numerals in the figure:

[0034] 10 - mounting bracket, 11 - powder inlet hole, 12 - cake pressing hole

[0035] 13 - discharging hole, 14 - mounting groove, 20 - cake pressing device

[0036] 21 - cake pressing screw, 22 - second driving device, 30 - brewing device

[0037] 31 - powder inlet pipe, 32 - cake pressing and brewing cavity, 33 - discharging cavity

[0038] 34 - discharging port, 35 - buckling device, 40 - push plate brewing device

[0039] 41 - push plate brewing head, 42 - first driving device, 43 - pushing screw

[0040] 211 - Screw main body 212 - Cake pressing assembly 221 - Second driving motor

[0041] 222 - Second gear set 223 - Second fixing plate 331 - Guide groove

[0042] 411 - Liquid outlet support plate 412 - Sealing ring 413 - Moving plate

[0043] 414 - Outer connecting pipe 415 - Connecting column 421 - First driving motor

[0044] 422 - First gear set 423 - First fixing plate 4111 - Filter hole

[0045] 4131 - Water collecting boss 4132 - Water collecting groove 4133 - Connecting hole. Detailed implementation manners

[0046] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the attached Figures 1 to 10 drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation of the present utility model.

[0047] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0049] In the embodiments of the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0050] In one embodiment of the present utility model, as Figures 1 to 10 shown, a coffee brewer is provided, which includes a mounting frame 10, a cake pressing device 20, a brewing device 30, and a push plate brewing device 40, wherein:

[0051] The mounting frame 10 is provided with a powder inlet hole 11, a cake pressing hole 12, a material discharging hole 13, and a mounting groove 14. The powder inlet hole 11, the cake pressing hole 12, and the material discharging hole 13 are all communicated with the mounting groove 14. One side plane of the opening of the mounting groove 14 of the mounting frame 10 is the encapsulation plane of the mounting frame 10. Through the encapsulation of this encapsulation plane, the brewing device 30 is encapsulated within the mounting frame 10;

[0052] The cake pressing device 20 is mounted on the mounting frame 10, and the cake pressing end of the cake pressing device 20 extends through the cake pressing hole 12 towards the mounting groove 14. The cake pressing end of the cake pressing device 20 is communicated with a water inlet pipe, and the cake pressing end can simultaneously perform brewing on the powder cake in the extrusion state;

[0053] The brewing device 30 is mounted in the mounting groove 14. A buckle device 35 is arranged on the side of the brewing device 30. The two ends of the buckle device 35 are mutually clamped with the two opposite side surfaces of the mounting groove 14 to realize the quick buckling installation of the brewing device 30. When disassembling, by operating the buckle device 35, the buckle state between the buckle device 35 and the two side surfaces of the mounting groove 14 is released, and the brewing device 30 is disassembled. The powder inlet pipe 31 of the brewing device 30 passes through the powder inlet hole 11 and is detachably arranged. After the brewing device 30 is buckled and installed, the powder inlet pipe 31 extends into the brewing device 30 from the powder inlet hole 11 and is assembled with the brewing device 30 to realize the communication with the cake pressing brewing cavity 32. A connected cake pressing brewing cavity 32 and a material discharging cavity 33 are arranged in the brewing device 30. A plurality of guide grooves 331 are arranged on the inner side walls of the material discharging cavity 33 opposite to each other. The guide grooves 331 are slidably connected with the push plate brewing head 41 to ensure the smoothness of the movement process of the push plate brewing head 41. The powder inlet pipe 31 is communicated with the cake pressing brewing cavity 32. A material discharging port 34 is arranged on one side of the material discharging cavity 33, and the material discharging port 34 is arranged downward to realize automatic blanking, and the cake pressing end of the cake pressing device 20 can extend into the cake pressing brewing cavity 32 for compressing the powder cake;

[0054] The push plate brewing device 40 is installed on the mounting frame 10. The push plate brewing head 41 of the push plate brewing device 40 is slidably arranged in the discharging cavity 33, and the push plate brewing head 41 is oppositely arranged with the pressing end of the cake pressing device 20. The push plate brewing head 41 can be abutted against one end opening of the cake pressing and brewing cavity 32, separating the cake pressing and brewing cavity 32 from the discharging cavity 33, so as to prevent liquid leakage when brewing the powder cake in the cake pressing and brewing cavity 32. A plurality of filter holes 4111 are arranged on the push plate brewing head 41, and each filter hole 4111 communicates with the coffee liquid outlet pipe. The coffee liquid outlet pipe passes through the side wall of the mounting frame 10 and the side wall of the discharging cavity 33 of the brewing device 30 and communicates with the filter holes 4111 on the push plate brewing head 41.

[0055] The coffee brewer in the present utility model is assembled by a mounting frame 10, a cake pressing device 20, a brewing device 30 and a push plate brewing device 40. The mounting frame 10 is used to fixedly install the cake pressing device 20, the brewing device 30 and the push plate brewing device 40, and position the relative positions of the cake pressing device 20, the brewing device 30 and the push plate brewing device 40. During production, an installation groove 14 for installing the brewing device 30, a powder inlet hole 11 for the powder inlet pipe 31 on the brewing device 30 to pass through, a cake pressing hole 12 for the pressing end of the cake pressing device 20 to move, a discharging hole 13 for the pushing screw 43 of the push plate brewing device 40 to move, and an output groove for outputting the powder cake waste residue are arranged on the mounting frame 10. The powder inlet hole 11, the cake pressing hole 12, the discharging hole 13 and the output groove are all communicated with the installation groove 14. The pressing end of the cake pressing device 20 is communicated with a water inlet pipe, so that while the cake pressing device 20 has the function of pressing the coffee powder cake, it can provide water for coffee brewing of the coffee brewer. A cake pressing and brewing cavity 32 and a discharging cavity 33 which are communicated with each other are arranged on the brewing device 30. At the same time, a powder inlet pipe 31 is further arranged on the brewing device 30, and the powder inlet pipe 31 communicates with the cake pressing and brewing cavity 32. The other end of the cake pressing and brewing cavity 32 penetrates through one end of the brewing device 30. A discharging hole 13 is arranged on the side surface of the other end of the brewing device 30, and the discharging hole 13 communicates with the discharging cavity 33 for the pushing screw 43 of the push plate brewing device 40 to pass through. A discharging port 34 is arranged at the bottom of the brewing device 30, and the discharging port 34 communicates with the discharging cavity 33. A fault plane is formed at the connection of the cake pressing and brewing cavity 32 and the discharging cavity 33, and the movement process of the push plate brewing head 41 of the push plate brewing device 40 is limited by the fault plane. A plurality of filter holes 4111 are arranged on the end plane of the push plate brewing head 41, and the filter holes 4111 are communicated with the coffee liquid outlet pipe connected to the push plate brewing head 41, so as to realize the output of the brewed coffee liquid.

[0056] The cake pressing device 20, the cake pressing brewing cavity 32 and the push plate brewing device 40 are coaxially arranged, which can effectively ensure the coincidence degree of the moving paths of the cake pressing screw 21 and the push plate brewing head 41, so that the pressure between the moving of the cake pressing screw 21 and the push plate brewing head 41 in the cake pressing brewing cavity 32 and the inner side wall of the cake pressing brewing cavity 32 is stable, and uneven stress on different surfaces will not occur, resulting in serious wear and the occurrence of seal gap wear, affecting the service life of the overall equipment.

[0057] During assembly, a part of the push plate brewing head 41 is slidably installed in the material discharging cavity 33 of the brewing device 30. The driving part of the push plate brewing device 40 is installed on the mounting frame 10. The push plate brewing head 41 and the push material screw 43 on its driving part are connected by a hanging buckle, which is convenient for the disassembly and assembly of the two. The brewing device 30 is installed in the mounting groove 14 of the mounting frame 10 through a buckle, and the powder inlet pipe 31 of the brewing device 30 extends outside the mounting frame 10 through the powder inlet hole 11 of the mounting frame 10 to facilitate the input of coffee powder. The cake pressing device 20 is installed on the mounting, and at the same time, the cake pressing end of the cake pressing device 20 passes through the cake pressing hole 12 on the mounting frame 10 and extends towards the opening of the cake pressing brewing cavity 32 of the brewing device 30, so that the cake pressing end of the cake pressing device 20 can move into the cake pressing brewing cavity 32, making the coffee brewer of the present application simple and compact in structure and effectively reducing the material cost.

[0058] During operation, the pusher screw 43 of the driving part of the push plate brewing device 40 drives the push plate brewing head 41 to move and extend into the opening of the cake pressing brewing chamber 32. When it abuts against the fault surface, it stops moving, completely blocking one end opening of the cake pressing brewing chamber 32. The cake pressing end of the cake pressing device 20 enters the head of the other end opening of the cake pressing brewing chamber 32. Coffee powder is input into the cake pressing brewing chamber 32 from the powder inlet pipe 31. After the loading is completed, the cake pressing end of the cake pressing device 20 extends into the cake pressing brewing chamber 32 to extrude the coffee powder, and cooperates with the push plate brewing head 41 to compress the coffee powder into a powder cake. Water is input through the water inlet pipe to brew the compressed powder cake. The brewed water is input into the coffee liquid outlet pipe through the filter holes 4111 for output to obtain coffee. After the brewing is completed, the water inlet pipe stops supplying water, and the push plate brewing head 41 retracts, moving away from the opening of the cake pressing brewing chamber 32. The cake pressing end of the cake pressing device 20 continues to extend into the cake pressing brewing chamber 32 to push the powder cake out of the cake pressing brewing chamber 32 and into the discharging chamber 33. Then the powder cake falls off from the discharging port 34 and disengages from the discharging chamber 33. An induction magnet is provided at the end of the push plate brewing head 41 to sense the position state, thereby judging the state of the brewing device 30. When the brewing device needs to be cleaned, the cake pressing end of the cake pressing device 20 is withdrawn from the cake pressing brewing chamber 32, and at the same time, the push plate brewing head 41 is kept in the discharging state. Through the above program steps, by operating the buckle position of the brewing device 30, the buckle state between the brewing device 30 and the mounting bracket 10 is separated, the brewing device 30 is disassembled, and then the brewing device 30 is cleaned. After the cleaning is completed, the brewing device 30 is assembled into the mounting groove 14 of the mounting bracket 10 in a buckling manner, and at the same time, the push plate brewing head 41 is restored to the hanging connection state with the pusher screw 43 of the driving device. Through the above structural settings, the simple disassembly and cleaning of the coffee brewing device in the present application are realized.

[0059] In another embodiment of the present utility model, as Figure 1 、 Figure 3 and Figures 7 to 9As shown, the push plate brewing device 40 includes a push plate brewing head 41, a first driving device 42, and a feed screw 43. On the one hand, the push plate brewing head 41 cooperates with the pressing cake screw 21 to extrude coffee powder to form a coffee cake. On the other hand, a coffee liquid outlet pipe communicating with each filter hole 4111 provided on the push plate brewing head 41 is provided to discharge coffee. The first driving device 42 includes a first driving motor 421, a first gear set 422, and a first fixing plate 423. The first driving motor 421 is fixedly installed on the mounting frame 10, the first fixing plate 423 is fixedly installed on the mounting frame 10, the first gear set 422 is rotatably arranged between the first fixing plate 423 and the mounting frame 10. A first guiding hole is provided on the first fixing plate 423, and a first guiding clearance groove is formed on the feed screw 43. The first guiding clearance groove is slidably connected with a first guiding block on the first guiding hole. The driving wheel of the first gear set 422 is fixedly connected with the output end of the first motor. The first driving device 42 is installed on the mounting frame 10. The push plate brewing head 41 is slidably arranged in the discharging cavity 33. The feed screw 43 passes through the discharging hole 13 and is slidably connected with the discharging hole 13. And the driving gear of the first driving device 42 is threadedly connected with the feed screw 43. The first driving motor 421 drives the driving gear to rotate, and the rotation of the driving gear drives the feed screw 43 to move back and forth, thereby pushing the push plate brewing head 41 to move.

[0060] In another embodiment of the present invention, as Figure 3 and Figures 7 to 9 shown, the push plate brewing head 41 includes a liquid outlet support plate 411, a sealing ring 412, a moving plate 413, an outer connecting pipe 414, and a connecting column 415. The moving plate 413 is slidably clamped with the inner side wall of the discharging cavity 33, and a plurality of sliding blocks are provided at the edge of the moving plate 413. The sliding blocks are slidably connected with the guiding grooves 331. One end of the connecting column 415 is rotatably connected with the end of the feed screw 43 by a hanging buckle. On the one hand, the hanging buckle connection is convenient for disassembly and assembly. On the other hand, the rotational connection can facilitate the rotation of the feed screw 43. The other end of the connecting column 415 is connected with one side surface of the moving plate 413 to drive the moving plate 413 to move. The moving plate 413 is slidably connected with the inner side wall of the discharging cavity 33. A water collecting boss 4131 protrudes from the other side surface of the moving plate 413. The sealing ring 412 is sleeved on the outer side surface of the water collecting boss 4131. The liquid outlet support plate 411 covers the top of the water collecting boss 4131. The filter holes 4111 are provided on the liquid outlet support plate 411. The liquid outlet support plate 411 is arranged as a curved surface protruding upward in the center. One end of the outer connecting pipe 414 passes through the side surface of the moving plate 413 and communicates with the water collecting boss 4131. The other end of the outer connecting pipe 414 communicates with the coffee liquid outlet pipe.

[0061] In another embodiment of the present invention, as Figure 3 and Figures 7 to 9As shown, a water collecting groove 4132 and a connection hole 4133 are provided at the top of the water collecting boss 4131. The coffee input from the filtering holes 4111 flows into the water collecting groove 4132 uniformly. The connection hole 4133 is located in the water collecting groove 4132 and is communicated with the external connecting pipe 414. The liquid outlet support plate 411 covers the water collecting groove 4132, and the coffee uniformly flows into the external connecting pipe 414 from the connection hole 4133 for output.

[0062] In another embodiment of the present utility model, as Figures 8 to 9 shown, a plurality of support protrusions for supporting the liquid outlet support plate 411 are provided in the water collecting groove 4132. The support protrusions are arranged at intervals to support the liquid outlet support plate 411 and prevent the liquid outlet support plate 411 from being recessed when being squeezed with the end of the pressing cake screw 21.

[0063] In another embodiment of the present utility model, as Figure 8 shown, the filtering holes 4111 are provided on the surface of the liquid outlet support plate 411. Each filtering hole 4111 is communicated with the water collecting groove 4132. Through the filtering of the filtering holes 4111, excessive residue of the powder cake is prevented from being mixed into the coffee.

[0064] In another embodiment of the present utility model, as Figures 7 to 9 shown, a closed annular protrusion extends laterally at the end of the connecting column 415. The annular protrusion is rotationally connected with the end of the pushing screw 43 by hooking, and the annular protrusion forms a hooking connection part with the end of the pushing screw 43.

[0065] In another embodiment of the present utility model, as Figure 1 、 Figure 3 and Figure 6 shown, the pressing cake device 20 includes a pressing cake screw 21 and a second driving device 22. The second driving device 22 includes a second driving motor 221, a second gear set 222 and a second fixing plate 223. The second driving motor 221 is fixedly installed on the mounting frame 10, the second fixing plate 223 is fixedly installed on the mounting frame 10, the second gear set 222 is rotatably arranged between the second fixing plate 223 and the mounting frame 10. A second guiding hole is provided on the second fixing plate 223, and a second guiding clearance groove is provided on the pressing cake screw 21. The second guiding clearance groove is slidably connected with a second guiding block on the second guiding hole. The driving wheel of the second gear set 222 is fixedly connected with the output end of the second motor. The second driving device 22 is installed on the mounting frame 10. The pressing cake screw 21 passes through the pressing cake hole 12 and extends into the pressing cake brewing cavity 32. The pressing cake screw 21 is slidably connected with the pressing cake hole 12 and is threadedly connected with the driving gear of the second driving device 22. The second driving motor 221 drives the driving gear to rotate, thereby driving the pressing cake screw 21 to move back and forth to act on the push plate brewing head 41 relatively. The end of the pressing cake screw 21 is communicated with the water inlet pipe to realize the water supply during brewing.

[0066] In another embodiment of the present utility model, as Figure 1 , Figure 3 and Figure 6 shown, the cake pressing screw 21 includes a screw main body 211 and a cake pressing assembly 212. A buffer space is hollowly arranged in the cake pressing assembly 212 and is communicated with each water inlet hole through the buffer space. The screw main body 211 extends through the cake pressing hole 12 into the cake pressing brewing cavity 32, and the screw main body 211 is in threaded connection with the driving gear of the second driving device 22. The cake pressing assembly 212 is installed at one end of the screw main body 211 facing the brewing device 30. The water inlet pipe passes through the screw main body 211 and is communicated with the cake pressing assembly 212, and a plurality of water inlet holes are arranged on the plane of the cake pressing assembly 212. The water inlet holes are communicated with the water inlet pipe. The cake pressing screw 21 is hollowly arranged for the water inlet pipe to penetrate and be communicated with the cake pressing assembly 212, facilitating the movement of the water inlet pipe following the cake pressing screw 21.

[0067] As Figure 1 , Figure 3 and Figure 10 shown, a coffee cake pressing brewing method provided by another embodiment of the present utility model includes the following steps:

[0068] S100: The first driving device 42 drives the pushing screw 43, and the pushing screw 43 drives the pushing plate brewing head 41, so that the water collecting boss 4131 of the pushing plate brewing head 41 extends into the cake pressing brewing cavity 32 of the brewing device 30, blocking one end opening of the cake pressing brewing cavity 32. The second driving device 22 drives the cake pressing screw 21, so that the end of the cake pressing screw 21 is separated from the cake pressing brewing cavity 32 to avoid being affected during the coffee powder loading;

[0069] S200: Coffee powder is loaded into the cake pressing brewing cavity 32 from the air inlet pipe 31. The second driving device 22 drives the cake pressing screw 21, so that the end of the cake pressing screw 21 moves towards the cake pressing brewing cavity 32, and cooperates with the pushing plate brewing device 40 to extrude the coffee powder in the cake pressing brewing cavity 32 into a cake shape for powder cake brewing;

[0070] S300: The water inlet pipe is connected to output high-temperature and high-pressure water. The water passes through the powder cake and enters the pushing plate brewing head 41 and is output from the coffee liquid outlet pipe connected to the pushing plate brewing head 41;

[0071] S400: After the brewing is completed, the water inlet pipe stops supplying water. The first driving device 42 drives the pushing screw 43, and the pushing screw 43 drives the pushing plate brewing head 41 to retreat to the end of the discharging cavity 33 far from the cake pressing brewing cavity 32. The water collecting boss 4131 is separated from the cake pressing brewing cavity 32. The second driving device 22 drives the cake pressing screw 21 to continue to move deeply towards the cake pressing brewing cavity 32, pushing the powder cake into the discharging cavity 33, and the powder cake falls into the discharging port 34 to complete the output;

[0072] S500: The second driving device 22 drives the cake pressing screw 21 to retract away from the cake pressing brewing cavity 32;

[0073] S600: Disassemble the brewing device 30 from the brewing device 30, so that the brewing device 30 is detached from the mounting bracket 10, and the hook connection between the push plate brewing head 41 and the feeding screw 43 is separated. Then, clean the brewing device 30, and after the cleaning is completed, perform reverse operations to reinstall it on the mounting bracket 10.

[0074] Before performing the coffee brewing operation after the assembly of the coffee brewer in the present utility model, first push the push plate brewing head 41 to the port of the cake pressing brewing cavity 32 to block one opening of the cake pressing brewing cavity 32. The cake pressing end of the cake pressing device 20 retreats to the other opening of the cake pressing brewing cavity 32. Then, input coffee powder into the cake pressing brewing cavity 32 from the powder inlet pipe 31. After the coffee powder input is completed, the cake pressing device 20 operates, and the cake pressing screw 21 extends into the cake pressing brewing cavity 32 to cooperate with the push plate brewing head 41 to extrude the coffee powder to form a powder cake. Then, water is introduced through the water inlet pipe connected to the cake pressing screw 21 to brew the powder cake. The brewed coffee is output through the filter holes 4111 provided on the push plate brewing head 41 via the coffee liquid outlet pipe to obtain coffee that meets the parameter settings. After the brewing is completed, the water inlet pipe stops supplying water, the push plate brewing head 41 retracts away from the opening of the cake pressing brewing cavity 32, and the cake pressing screw 21 continues to move deeper into the cake pressing brewing cavity 32 to push the powder cake into the discharging cavity 33. The powder cake drops and is output from the discharging port 34 communicating with the discharging cavity 33. Then, the cake pressing screw 21 retracts to the other opening of the cake pressing brewing cavity 32, the brewing device 30 is disassembled, and the push plate brewing head 41 is detached from the hooked state with the feeding screw 43. The brewing device 30 is cleaned, and after the cleaning is completed, the brewing device 30 is reinstalled by snap - fitting into the mounting groove 14 on the mounting bracket 10, and the push plate brewing head 41 resumes the hooked connection state with the feeding screw 43. Through the above - mentioned method, the control of the coffee parameters for brewing coffee and the simple disassembly and cleaning of the coffee brewer are realized.

[0075] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coffee brewer, characterized in that: include A mounting frame, wherein the mounting frame is provided with a powder inlet hole, a cake pressing hole, a material return hole and a mounting groove, and the powder inlet hole, the cake pressing hole and the material return hole are all connected to the mounting groove; A cake pressing device, the cake pressing device is installed on the mounting frame, and a cake pressing end of the cake pressing device passes through the cake pressing hole and extends toward the mounting groove, and the cake pressing end of the cake pressing device is connected to a water inlet pipe; A brewing device, wherein the brewing device is installed in the installation groove, a powder inlet pipe of the brewing device is arranged through the powder inlet hole, a cake pressing brewing chamber and a material return chamber are arranged in the brewing device, the powder inlet pipe is connected to the cake pressing brewing chamber, a material return port is arranged on one side of the material return chamber, and a cake pressing end of the cake pressing device can extend into the cake pressing brewing chamber for compressing powder cakes; A push plate brewing device, wherein the push plate brewing device is installed on the mounting frame, and a push plate brewing head of the push plate brewing device is slidably arranged in the material return cavity, and the push plate brewing head is arranged opposite to the cake pressing end of the cake pressing device, the push plate brewing head can be arranged in contact with an opening at one end of the cake pressing brewing cavity, and a plurality of filter holes are arranged on the push plate brewing head, and each of the filter holes is connected to the coffee liquid outlet pipe.

2. The coffee brewer according to claim 1, characterized in that: The push plate brewing device includes a push plate brewing head, a first driving device and a pushing screw, the first driving device is installed on the mounting frame, the push plate brewing head is slidably arranged in the material withdrawal cavity, the pushing screw passes through the material withdrawal hole and is slidably connected to the material withdrawal hole, and the driving gear of the first driving device is threadedly connected to the pushing screw.

3. The coffee brewer according to claim 2, characterized in that: The push plate brewing head includes a liquid outlet support plate, a sealing ring, a movable plate, an external pipe and a connecting column, one end of the connecting column is rotatably connected to the end of the pushing screw, the other end of the connecting column is connected to a side surface of the movable plate, the movable plate is slidably connected to the inner side wall of the material withdrawal cavity, the other side surface of the movable plate is protrudingly provided with a water collecting boss, the sealing ring is sleeved on the outer side surface of the water collecting boss, the liquid outlet support plate cover is sealed on the top of the water collecting boss, and one end of the external pipe passes through the side surface of the movable plate and is communicated with the water collecting boss.

4. The coffee brewer according to claim 3, characterized in that: A water collecting trough and a connecting hole are arranged on the top of the water collecting boss. The connecting hole is located in the water collecting trough and is connected to the external pipe. The liquid outlet support plate cover is sealed on the water collecting trough.

5. The coffee brewer according to claim 4, characterized in that: The water collecting tank is provided with a plurality of supporting protrusions for supporting the liquid outlet supporting plate.

6. The coffee brewer according to claim 4, characterized in that: The filter holes are arranged on the surface of the liquid outlet support plate, and each of the filter holes is connected to the water collecting tank.

7. The coffee brewer according to claim 3, characterized in that: The end of the connecting column is provided with a closed annular protrusion extending toward the side, and the annular protrusion is rotatably connected with the end hook of the pushing screw.

8. The coffee brewer according to claim 1, characterized in that: The cake pressing device includes a cake pressing screw and a second driving device, wherein the second driving device is installed on the mounting frame, and the cake pressing screw extends through the cake pressing hole to the cake pressing brewing chamber, the cake pressing screw is slidingly connected to the cake pressing hole, and the cake pressing screw is threadedly connected to the driving gear of the second driving device, and the end of the cake pressing screw is connected to the water inlet pipe.

9. The coffee brewer according to claim 8, characterized in that: The cake pressing screw includes a screw body and a cake pressing assembly, the screw body extends toward the cake pressing brewing chamber through the cake pressing hole, and the screw body is threadedly connected to the driving gear of the second driving device, the cake pressing assembly is installed at one end of the screw body facing the brewing device, the water inlet pipe passes through the screw body and is connected to the cake pressing assembly, and a plurality of water inlet holes are arranged on the plane of the cake pressing assembly, and the water inlet holes are connected to the water inlet pipe.

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