A brewer

Abstract

The present application belongs to the field of automatic brewing, in particular to a brewing device, comprising a machine body, a brewing cavity and a sliding assembly arranged in the machine body; a plunger is arranged in the sliding assembly and can be lifted in the sliding assembly; a first guide groove and a first driving mechanism are further arranged on the machine body; the first guide groove comprises a horizontal section and a vertical section which are communicated with each other, the plunger is driven by the first driving mechanism to move horizontally and vertically along the track of the first guide groove; a liquid discharge pipe is arranged on the plunger; a piston is arranged in the brewing cavity and can be lifted by a second driving mechanism, and a liquid inlet channel is arranged in the piston or the brewing cavity. The brewing device effectively reduces the complexity of the equipment, simplifies the equipment, reduces the volume of the equipment and improves the reliability of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic brewing, in particular to a brewing device, especially suitable for coffee brewing. BACKGROUND

[0002] Chinese patent ZL2018217873297 discloses a brewing device which can increase the brewing steps, improve the taste of coffee powder brewing, and thus improve its practicability; the brewing device comprises a shell, a powder guide cover, a powder residue guide plate, a vertical plate and a bottom column, the shell is internally provided with a working cavity, the top end and the bottom end of the shell are both provided with a communication port in a communication mode, the right side of the shell is provided with a working port in a communication mode, and the brewing device further comprises two groups of fixing members, a transmission screw rod, a sliding block, a linkage rod and a powder cake scraper, the two groups of fixing members are respectively installed on the upper left side and the lower left side in the shell, the top end and the bottom end of the transmission screw rod are rotatably fixed at the two groups of fixing members, and the sliding block is screw-mounted on the outer side of the transmission screw rod; the brewing device further comprises a cylinder, an upper piston and a lower piston, the cylinder is installed on the sliding block, the cylinder is provided with a guide hole, the linkage rod is installed at the guide hole, the cylinder is internally provided with a running cavity, the top end and the bottom end of the cylinder are both provided with a running hole in a communication mode, and the side wall of the cylinder is provided with a water inlet in a communication mode.

[0003] The existing device needs to use two or more driving mechanisms to operate from powder feeding, cake pressing, brewing and residue discharging, and has complex structure, high cost and poor operation reliability.

[0004] Therefore, the problem to be solved by the technical scheme is how to reduce the complexity of the device, simplify the device and reduce the volume of the device, and improve the reliability of the device. SUMMARY

[0005] The purpose of the present application is to provide a brewing device which effectively reduces the complexity of the device, simplifies the device, reduces the volume of the device and improves the reliability of the device.

[0006] The brewing device of the present application can be applied to coffee brewing, tea brewing, tea powder brewing, fruit juice powder brewing and other food powder brewing.

[0007] The technical scheme provided by the present application is a brewing device comprising a machine body, a brewing cavity and a sliding assembly arranged in the machine body; a plunger is arranged in the sliding assembly and can be lifted and lowered in the sliding assembly; a first guide groove and a first driving mechanism are further arranged on the machine body; the first guide groove comprises a horizontal section and a vertical section which are in communication with each other, and the plunger is driven by the first driving mechanism to move horizontally and vertically along the track of the first guide groove; a liquid discharge pipe is arranged on the plunger; a piston is arranged in the brewing cavity and can be lifted and lowered by a second driving mechanism, and a liquid inlet channel is arranged in the piston or the brewing cavity.

[0008] When the first driving mechanism drives the plunger to move laterally to the first lateral position, the plunger is located outside the brewing cavity;

[0009] When the first driving mechanism drives the plunger to move laterally to the second lateral position, the plunger is located above the brewing cavity;

[0010] When the first driving mechanism drives the plunger to move laterally to the second lateral position and to drop to the low position, the plunger and the brewing cavity are in sealing contact.

[0011] In the brewing device described above, the sliding assembly is provided with a plunger cavity, the plunger is built in the plunger cavity and is in sliding fit with the plunger cavity, and the vertical section and the plunger cavity are opposite to each other; the plunger cavity is provided with a material guiding cylinder on the side, and the lower part of the material guiding cylinder is provided with a slag scraping plate;

[0012] When the first driving mechanism drives the plunger to move laterally to the first lateral position, the slag scraping plate is located outside the brewing cavity.

[0013] In the brewing device described above, the machine body is provided with a sliding channel, and the sliding assembly is built in the sliding channel; the lateral section and the sliding channel are opposite to each other.

[0014] In the brewing device described above, the first driving mechanism comprises a driven wheel, a driving wheel driving the driven wheel to move, and a first motor driving the driving wheel, the driven wheel is provided with a driving groove, two ends of the driving groove are A end and B end respectively, in the direction from the A end to the B end, the distance from the driving groove to the center of the driven wheel gradually increases, the plunger is connected with the first driving mechanism through a linkage rod embedded in the driving groove, and the linkage rod passes through the first guide groove.

[0015] When the linkage rod is located at the position of the B end, the plunger moves laterally to the first lateral position;

[0016] When the linkage rod is located at the position of the A end, the plunger moves laterally to the second lateral position and drops to the low position.

[0017] In the brewing device described above, the plunger comprises a plunger body and a sliding block arranged in the plunger body; the plunger body is provided with a lifting channel arranged vertically, and the sliding block is located in the lifting channel; the plunger body is provided with an exhaust hole communicated with the liquid discharge pipe and the lifting channel; and the linkage rod is connected to the sliding block.

[0018] When the first driving mechanism drives the sliding block to drop to the bottom of the lifting channel, the sliding block breaks the communication between the exhaust hole and the lifting channel;

[0019] When the first driving mechanism drives the sliding block to rise to the preset height of the lifting channel, the sliding block moves upward to make the exhaust hole and the lifting channel communicate with each other.

[0020] In the brewing device, when the linkage rod is at a first node between the A end and the B end, the slider is at a preset height of the lifting channel, the plunger is at a low position in the plunger cavity, and the plunger is at a second transverse position; when the linkage rod is at a second node between the A end and the B end, the slider is at the preset height of the lifting channel, the plunger is at a high position in the plunger cavity, and the plunger is at the second transverse position; and the second node is between the first node and the B end.

[0021] In the brewing device, a material dropping opening is arranged in the machine body and located above the brewing cavity.

[0022] The machine body is further provided with a liquid outlet pipe; when the first driving mechanism drives the plunger to move transversely to the second transverse position and to descend to the low position, the plunger is in sealed contact with the brewing cavity, and the liquid outlet pipe is connected and communicated with the liquid discharge pipe.

[0023] In the brewing device, the driving groove is composed of an arc-shaped groove and a straight groove; the A end is located at a free end of the arc-shaped groove, and the B end is located at a free end of the straight groove.

[0024] In the brewing device, a horizontal groove is further arranged on the machine body; the sliding assembly is provided with two guide rods, one of which extends into the horizontal groove, and the other of which extends into the transverse section of the first guide groove.

[0025] In the brewing device, the plunger includes a plunger rod, a plunger head arranged at a top of the plunger rod, and a threaded surface arranged on an outer side of the plunger rod; a filter disc is arranged at a top of the plunger head; the plunger head is in sealed connection with the brewing cavity; the second driving mechanism includes a driving wheel in threaded connection with the threaded surface of the plunger rod and a second motor for driving the driving wheel; the plunger rod is provided with the liquid inlet channel extending below the filter disc; and the brewing cavity is provided with a heating module.

[0026] After the technical scheme is adopted, the brewing device has the following beneficial effects:

[0027] The brewing device effectively reduces the complexity of the equipment, simplifies the equipment, reduces the volume of the equipment, and improves the reliability of the equipment.

[0028] The two driving mechanisms can realize the whole process operation from powder feeding to liquid and residue discharging; specifically:

[0029] Powder feeding operation: the first driving mechanism needs to act;

[0030] Cake pressing operation: the first driving mechanism and the second driving mechanism need to operate;

[0031] Brewing operation: no driving mechanism operation is needed.

[0032] Slag discharge operation: requires the first drive mechanism and the second drive mechanism to operate.

[0033] The overall equipment structure has been fully simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a front view of Example 1 of the present invention;

[0035] Figure 2 is an internal structure diagram of embodiment 1 of the present invention;

[0036] Figure 3 is an internal structure diagram of embodiment 1 of the present invention;

[0037] Figure 4 is a perspective view of embodiment 1 of the present invention;

[0038] Figure 5 FIG is a perspective view of Example 1 of the present invention after removing the first driving mechanism; FIG

[0039] 6- Figure 30 This is a working principle diagram of embodiment 1 of the present invention;

[0040] Figures 31-32 This is a structural diagram of a plunger according to Example 1 of the present invention. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods, but this does not constitute any limitation to the present invention.

[0042] Example 1:

[0043] like Figures 1-5 As shown, a brewer comprises a body 1, wherein a brewing chamber 4, a residue discharge area 2, a discharge port 5, a liquid discharge pipe 6, and a sliding assembly 7 are provided in the body 1, wherein the discharge port 5 is located above the brewing chamber 4, and further comprising a first driving mechanism, wherein the sliding assembly 7 is provided with a material guide cylinder 72 and a plunger that can be raised and lowered in the sliding assembly 7; a first guide groove 100 is further provided on the body 1; the first guide groove 100 comprises a horizontal section and a vertical section that are interconnected, and the plunger is driven by the first driving mechanism to move horizontally and vertically within the trajectory of the first guide groove 100; a liquid discharge pipe 73 is provided on the plunger; a piston 10 is provided in the brewing chamber 4 and is driven to rise and fall by a second driving mechanism 9, and a liquid inlet channel 101 is provided in the piston 10 or in the brewing chamber 4;

[0044] When the first driving mechanism drives the plunger to move laterally to the first lateral position, the material guiding cylinder 72 and the brewing chamber 4 are in conduction;

[0045] When the first driving mechanism drives the plunger to move laterally to the second lateral position, the guide cylinder 72 and the residue discharge area 2 are in communication, and the plunger is above the brewing cavity 4;

[0046] When the first driving mechanism drives the plunger to move laterally to the second lateral position and to lower to the low position, the plunger and the brewing cavity 4 are in sealing contact, and the liquid discharge pipe 73 and the liquid outlet pipe 6 are in communication.

[0047] The present scheme can realize the whole operation from powder feeding to residue discharging through two driving mechanisms. Specifically,

[0048] Powder feeding operation: the first driving mechanism is needed to act; the first driving mechanism drives the plunger to move laterally to the first lateral position.

[0049] Cake pressing operation: the first driving mechanism and the second driving mechanism are needed to operate; the first driving mechanism drives the plunger to move laterally to the second lateral position and to lower to the low position, and the second driving mechanism 9 drives the piston to rise.

[0050] Brewing operation: no driving mechanism is needed to operate; the liquid inlet channel 101 is fed with liquid, and the brewing liquid is discharged from the liquid discharge pipe 73 and the liquid outlet pipe 6.

[0051] Residue discharging operation: the first driving mechanism and the second driving mechanism are needed to operate. The first driving mechanism drives the plunger to rise to the high position, the first driving mechanism drives the plunger to move laterally to the first lateral position, and the second driving mechanism 9 drives the piston to rise to discharge the residue cake from the brewing cavity; the first driving mechanism drives the plunger to move laterally to the second lateral position to push the residue cake to the residue discharge area.

[0052] Preferably, the lower part of the guide cylinder 72 is provided with a residue scraping plate 70, which can be a half-circular plate or a ring-shaped body. When the first driving mechanism drives the plunger to move laterally to the first lateral position, at least part of the residue scraping plate is located outside the brewing cavity away from one side of the residue discharge area.

[0053] The overall device structure is fully simplified.

[0054] As a further refinement of the present embodiment, a machine body 1 is provided, which is internally provided with a residue discharging area 2, a sliding channel 3, a brewing cavity 4, a material dropping port 5, and a liquid outlet pipe 6. Preferably, the residue discharging area is a vertically arranged residue discharging channel. The sliding channel 3 is internally provided with a sliding assembly 7, which is internally provided with a plunger cavity 71 and a material guiding cylinder 72. The machine body is provided with a first guide groove 100. The horizontal section of the first guide groove 100 is opposite to the sliding channel 3, and the vertical section of the first guide groove 100 is opposite to the brewing cavity 4. The plunger cavity 71 is internally provided with a liftable plunger. The plunger is connected with a first driving mechanism 8. Specifically, the plunger is driven by the first driving mechanism to move in the sliding channel and the brewing cavity along the track of the first guide groove. Since the horizontal section of the first guide groove 100 is opposite to the sliding channel 3, and the vertical section of the first guide groove 100 is opposite to the brewing cavity 4, the plunger can be moved along the first guide groove 100 by a linkage rod or any guiding assembly that can be embedded in the first guide groove 100. The first driving mechanism 8 is used to drive the plunger to lift in the plunger cavity 71 and to drive the sliding assembly 7 to move horizontally along the sliding channel 3. The material dropping port 5 is opposite to the brewing cavity 4. The plunger is provided with a liquid outlet pipe 73. The brewing cavity 4 is internally provided with a piston 10 that is driven to lift by a second driving mechanism 9. The piston 10 is internally provided with a liquid inlet channel 101.

[0055] When the first driving mechanism 8 drives the sliding assembly 7 to move to the first transverse position of the sliding channel 3, the material guiding cylinder 72 is located above the brewing cavity 4.

[0056] When the first driving mechanism 8 drives the sliding assembly 7 to move to the second transverse position of the sliding channel 3, and the first driving mechanism 8 drives the plunger to move to the high position in the plunger cavity 71, the material guiding cylinder 72 is located above the residue discharging area 2. The plunger cavity 71 is located above the brewing cavity 4. The liquid outlet pipe 73 is opposite to the liquid outlet pipe 6.

[0057] When the first driving mechanism 8 drives the sliding assembly 7 to move to the second transverse position of the sliding channel 3, and the first driving mechanism 8 drives the plunger to move downward to the low position in the plunger cavity 71, the plunger is in sealing contact with the brewing cavity 4. The liquid outlet pipe 73 is connected with the liquid outlet pipe 6.

[0058] The first driving mechanism can be realized by a driven wheel, a driving wheel, and a driving groove as shown in the following figure. Alternatively, the first driving mechanism can be a cylinder, the cylinder body of which is hinged on one side of the first guide groove. The extension and shortening of the power output end of the cylinder can realize the movement of the sliding assembly 7.

[0059] The present embodiment can realize the following operations: opening the bin, receiving powder, pressing the cake, brewing, and discharging residue.

[0060] Opening operation: reference to initial position Figure 6 and Figure 7 ;

[0061] Reference Figure 8 and 9 , the first drive mechanism 8 drives the sliding assembly 7 to move to the first lateral position of the sliding channel 3, and the guide cylinder 72 is above the brewing chamber 4;

[0062] Powder feeding operation: reference to Figure 10 and 11 , the material outlet 5 injects coffee powder into the brewing chamber 4 through the guide cylinder 72;

[0063] Transition operation: reference to Figure 12 and 13 , the first drive mechanism 8 drives the sliding assembly 7 to move to the second lateral position of the sliding channel 3, and the first drive mechanism 8 drives the plunger to move to the high position in the plunger cavity 71, the guide cylinder 72 is above the residue discharge area 2; the plunger cavity 71 is above the brewing chamber 4; the drain pipe 73 and the outlet pipe 6 are opposite;

[0064] Cake pressing operation: reference to Figure 14 and 15 , the first drive mechanism 8 drives the plunger to move downward to the low position in the plunger cavity 71, the plunger and the brewing chamber 4 are in sealing contact, and the drain pipe 73 and the outlet pipe 6 are connected in conduction;

[0065] Reference Figure 16 and 17 , the second drive mechanism 9 drives the plunger 10 to move upward, and the powder is extruded by the plunger 10 to form a cake between the plunger 10 and the plunger.

[0066] Brewing operation: reference to Figure 18 , the plunger 10 injects water to form coffee, and the coffee is discharged through the drain pipe 73 to the outlet pipe 6.

[0067] Residue discharge operation: reference to Figures 19-22 , first, the first drive mechanism 8 drives the sliding assembly 7 to move to the second lateral position of the sliding channel 3, and the first drive mechanism 8 drives the plunger to move to the high position in the plunger cavity 71;

[0068] Reference Figures 23-24 , then the first drive mechanism 8 drives the sliding assembly 7 to move to the first lateral position of the sliding channel 3;

[0069] Reference Figures 25-26 , then the second drive mechanism 9 drives the plunger 10 to move upward to eject the residue from the brewing chamber 4;

[0070] Reference Figures 27-28Then the first driving mechanism 8 drives the sliding assembly 7 to move to the second transverse position of the sliding channel 3, at this time the material guiding cylinder 72 moves horizontally, and the slag scraping plate scrapes the slag.

[0071] Figures 29-30 Return to the initial state.

[0072] As a further refinement of the embodiment, the plunger comprises a plunger body 74, a sliding block 75 arranged in the plunger body 74, a lifting channel 76 vertically arranged in the plunger body 74, and the sliding block 75 is located in the lifting channel 76; the plunger body 74 is provided with an exhaust hole 77 communicated with the liquid discharge pipe and the lifting channel; a gap is arranged between the sliding block 75 and the lifting channel 76 and communicated with the atmosphere; the exhaust hole and the lifting channel are communicated; the linkage rod is connected to the sliding block; a sealing ring can be arranged between the sliding block 75 and the exhaust hole 77.

[0073] When the first driving mechanism 8 drives the sliding block 75 to descend to the bottom of the lifting channel 76, the sliding block 75 breaks the communication between the exhaust hole 77 and the lifting channel;

[0074] When the second driving mechanism 9 drives the sliding block 75 to rise to a preset height of the lifting channel 76, the sliding block 75 moves upward to communicate the exhaust hole 77 and the lifting channel.

[0075] As a further refinement of the embodiment, the first driving mechanism 8 comprises a driven wheel 81, a driving wheel 82 driving the driven wheel 81 to move, and a first motor driving the driving wheel 82, the driven wheel 81 is provided with a driving groove; the two ends of the driving groove are A end and B end respectively; in the direction from A end to B end, the distance from the driving groove to the center of the driven wheel 81 gradually increases;

[0076] The plunger is connected in transmission with the first driving mechanism 8 through a linkage rod 78 embedded in the driving groove; the linkage rod 78 passes through the first guide groove 100 and enters the driving groove.

[0077] The plunger body 74 is provided with a vertically arranged waist-shaped groove 701, and the linkage rod 78 passes through the waist-shaped groove.

[0078] When the linkage rod 78 is located at the A end, the sliding block 75 is located at the bottom of the lifting channel 76, and the plunger is located at the low position in the plunger cavity 71; the sliding assembly 7 is located at the second transverse position of the sliding channel 3; refer to Figure 31 and 32 When the linkage rod is at the A end, it is located at the bottom of the waist-shaped groove;

[0079] When the linkage rod 78 is at the B end, the slider 75 is at the preset height of the lifting channel 76, the plunger is at the high position in the plunger cavity 71; the sliding assembly 7 is at the first transverse position of the sliding channel 3; when the linkage rod 78 is at the first node C between the A end and the B end, the slider 75 is at the preset height of the lifting channel 76, the plunger is at the low position in the plunger cavity 71; the sliding assembly 7 is at the second transverse position of the sliding channel 3; when the linkage rod 78 is at the second node D between the A end and the B end, the slider 75 is at the preset height of the lifting channel 76, the plunger is at the high position in the plunger cavity 71; the sliding assembly 7 is at the second transverse position of the sliding channel 3; the second node D is between the first node C and the B end. Reference Figure 31 and 32 At the first node D, the linkage rod is at the top of the waist-shaped groove;

[0080] It can be seen that the position of the linkage rod 78 is closely related to the above-mentioned operation process, when the linkage rod 78 is at the A end, the pressing cake and brewing are carried out in this state, when the linkage rod 78 is at the B end, the opening of the bin and the addition of powder are carried out in this state; when at the first node C, the plunger is ready to go up, the exhaust hole 77 and the liquid discharge pipe 73 are communicated; when at the second node D, the plunger returns to the high position in the plunger cavity 71, and the sliding assembly 7 is ready to move to the state of opening the bin and adding powder, or to carry out the operation of discharging residue.

[0081] Preferably, the driving groove is composed of an arc-shaped groove 83 and a straight groove 84; the A end is at the free end of the arc-shaped groove 83, and the B end is at the free end of the straight groove 84; because the lifting operation of the slider 75 requires higher operation precision and the lifting of the plunger requires greater torque, the lifting of the slider 75 and the lifting of the plunger are carried out in the arc-shaped groove 83, and the horizontal movement of the sliding assembly 7 is carried out through the straight groove 84.

[0082] Of course, in actual application, the driving groove is not limited to being composed of an arc-shaped groove 83 and a straight groove 84, and it is also feasible to be composed of one or more grooves in the form of a spiral line, a straight line, an arc line or a spline curve.

[0083] In order to improve the movement stability of the sliding assembly 7, a horizontal groove 105 is further arranged on the machine body 1; a guide rod 79 is arranged on the sliding assembly 7, and the guide rod 79 extends into the horizontal groove 105; when the sliding assembly 7 slides horizontally along the sliding channel, the linkage rod 78 and the guide rod 79 are respectively embedded into the first guide groove 100 and the horizontal groove 105, and the movement is more stable due to two-point guidance.

[0084] Further improvement, two guide rods 79 can be arranged on the sliding assembly 7, one of which extends into the horizontal groove 105 as above, and the other extends into the horizontal segment of the first guide groove 100.

[0085] Preferably, the piston 10 comprises a piston rod 101, a piston head arranged on the top of the piston rod 101, and a threaded surface 103 arranged on the outer side of the piston rod 101; the top of the piston head is provided with a filter piece 102, preferably, the bottom of the piston rod is also provided with a filter piece corresponding to the filter piece 102, and the piston head is sealingly connected with the brewing cavity 4; the brewing cavity is provided with a heating module (not shown in the drawings), which can keep the brewing cavity at a constant preset temperature, and can compensate for the heat loss of the hot water injected through the liquid inlet channel 101, so that the temperature of the brewed liquid can be accurately controlled. The bottom of the brewing cavity 4 is provided with a driving wheel 104 which is threadedly connected with the threaded surface 103 of the piston rod 101, the driving wheel 104 is drivingly connected with a second motor, the second motor is part of a second driving mechanism 9, and is drivingly connected with the driving wheel 104 through a gear; the liquid inlet channel 101 is arranged in the piston rod 101 and extends to the lower surface of the filter piece 102, the top of the residue discharging area 2 is provided with a blowing mechanism 21 or a suction mechanism, and the liquid discharging pipe 73 and the liquid outlet pipe 6 are connected in a sealing plug-in manner.

[0086] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited by the above embodiments, and any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present application shall be equivalent replacement methods, and shall be included in the protection scope of the present application.

Claims

1. A brewer, comprising a body, wherein the body is provided with a brewing chamber and a sliding assembly; characterized in that: The sliding assembly is provided with a plunger that can be raised and lowered within the sliding assembly; the machine body is also provided with a first guide groove and a first drive mechanism; the first guide groove includes a horizontal section and a vertical section that are interconnected, and the plunger is driven by the first drive mechanism to move horizontally and vertically within the trajectory of the first guide groove; the plunger is provided with a liquid discharge pipe; the brewing chamber is provided with a piston that is driven to rise and fall by the second drive mechanism, and a liquid inlet channel is provided in the piston or in the brewing chamber; When the first driving mechanism drives the plunger to move laterally to the first lateral position, the plunger is located outside the brewing chamber; When the first driving mechanism drives the plunger to move laterally to the second lateral position, the plunger is located above the brewing chamber; When the first driving mechanism drives the plunger to move laterally to the second lateral position and drop to the lower position, the plunger is in sealing contact with the brewing chamber; The first driving mechanism includes a driven wheel, a driving wheel for driving the driven wheel, and a first motor for driving the driving wheel. The driven wheel is provided with a driving groove; the two ends of the driving groove are respectively end A and end B; the distance between the driving groove and the center of the driven wheel gradually increases from end A to end B; the plunger is connected to the first driving mechanism through a linkage rod embedded in the driving groove; the linkage rod passes through the first guide groove; When the linkage rod is located at the B end position, the plunger moves laterally to the first lateral position; When the linkage rod is located at the A end position, the plunger moves laterally to the second lateral position and descends to the low position; The plunger includes a plunger body and a slider disposed in the plunger body; a vertically arranged lifting channel is provided in the plunger body, and the slider is located in the lifting channel; a vent hole is provided in the plunger body that communicates with the drain pipe and the lifting channel; and the linkage rod is connected to the slider; When the first driving mechanism drives the slider to descend to the bottom of the lifting channel, the slider disconnects the exhaust hole from the lifting channel; When the first driving mechanism drives the slider to rise to a preset height of the lifting channel, the slider moves upward to connect the exhaust hole and the lifting channel.

2. The brewer according to claim 1, characterized in that A feeding port is provided in the body, and the feeding port is located above the brewing cavity; A liquid outlet pipe is also provided in the machine body; when the first driving mechanism drives the plunger to move laterally to the second lateral position and drop to the lower position, the plunger is in sealing contact with the brewing chamber, and the liquid outlet pipe is connected to the drain pipe.

3. The brewer according to claim 1, characterized in that A plunger cavity is provided in the sliding assembly, the plunger is built into the plunger cavity and slides with the plunger cavity, and the vertical section and the plunger cavity are directly opposite; a material guide cylinder is provided on the side of the plunger cavity, and a scraper is provided at the lower part of the material guide cylinder; When the first driving mechanism drives the plunger to move transversely to the first transverse position, the scraper is located outside the brewing chamber.

4. The brewer according to claim 1, characterized in that A sliding channel is provided in the body, and the sliding assembly is built into the sliding channel; the transverse section and the sliding channel are directly opposite.

5. The brewer according to claim 1, characterized in that When the linkage rod is located at a first node between ends A and B, the slider is located at a preset height of the lifting channel, and the plunger is located at a low position in the plunger cavity; the plunger is located at a second lateral position; when the linkage rod is located at a second node between ends A and B, the slider is located at a preset height of the lifting channel, and the plunger is located at a high position in the plunger cavity; the plunger being in a second lateral position; The second node is located between the first node and the B terminal.

6. The brewer according to claim 1, characterized in that The driving groove is composed of an arc groove and a straight groove; the A end is located at the free end of the arc groove, and the B end is located at the free end of the straight groove.

7. The brewer according to claim 1, characterized in that The machine body is further provided with a horizontal groove; the sliding assembly is provided with two guide rods, one of which extends into the horizontal groove, and the other extends into the transverse section of the first guide groove.

8. The brewer according to claim 1, characterized in that The piston includes a piston rod, a piston head arranged at the top of the piston rod, and a threaded surface arranged on the outside of the piston rod. A filter is provided on the top of the piston head; the piston head is sealed with the brewing chamber; the second driving mechanism includes a driving wheel threadedly connected to the threaded surface of the piston rod and a second motor that drives the driving wheel; the liquid inlet channel extending to the bottom of the filter is provided in the piston rod; and a heating module is provided on the brewing chamber.

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