Powder pressing and residue discharging push rod mechanism of coffee maker

Abstract

The utility model relates to a powder pressing and residue discharging push rod mechanism of a coffee brewing device, and aims to solve the technical problems that a lower push rod structure in a brewing seat component of the conventional similar product is not good enough in design, and a linkage limiting structure of a barrel seat and a connecting rod combination is not good enough in design. The main points are that a connecting rod with one end inserted into a cavity at the bottom of a barrel body is arranged at a slot at one side of the bottom of the barrel body at a brewing seat assembly of the mechanism; a sliding hole at one end of the connecting rod is hinged with one end, extending out of the cavity at the bottom of the barrel body, of a lower powder pressing and slag discharging push rod through a pin; the two ends of the shaft portion of the connecting rod are provided with side rods extending and protruding towards one side of the deslagging channel respectively, and protruding columns on the inner sides of the side rods are inserted into sliding grooves in the two sides of the groove in the bottom of the barrel body respectively. The bending positions on the two sides of the barrel base are buckled and fixed to the outer diameter shaft columns above the sliding grooves in the two sides of the barrel body, the barrel base is inserted into a barrel rotating motor on one side of the buckling end of the bending position to be driven to rotate, and protruding swing shafts are symmetrically arranged on the two sides above the shaft columns of the barrel body.

Description

Technical Field

[0001] The utility model relates to a brewer of a coffee machine, which is a push rod mechanism for pressing powder and discharging residues of the coffee brewer. Background Art

[0002] A coffee machine is a household appliance or commercial appliance that automatically makes coffee, integrating the entire process of grinding, pressing, filling, brewing, and removing residues. The core component of some existing fully automatic coffee machines is a brewer, which is used for receiving powder, pressing, brewing, brewing, and removing residues. It generally consists of two parts: a brewing seat assembly and a brewing head assembly. The powder pressing and brewing mechanism is arranged on the brewing head assembly. When the brewing barrel assembly is located on one side, powder is received; when the barrel body of the brewing barrel assembly rotates to the side of the brewing set assembly, after pressing, brewing, brewing, and removing residues, the barrel body of the brewing seat assembly returns to the powder receiving side to wait for the next powder receiving. As disclosed in the Chinese patent literature, application number 202020831309.6, authorization announcement date 2021.04.23, and utility model name "A brewing system for a coffee machine"; however, the lower push rod of the brewing seat assembly in the above-mentioned products and similar products is mainly used for slag discharge, and rarely plays the role of powder compression together with the upper push rod. At the same time, the structural design of such lower push rods is poor, and rarely realizes linkage and limiting structure through the combination of the barrel seat and the connecting rod to achieve powder compression and slag discharge. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a coffee brewer lower powder pressing and slag discharge push rod mechanism to the art, so as to solve the technical problems that the lower push rod structure design in the brewing seat assembly of existing similar products is poor, and the linkage and limit structure are rarely realized by combining the barrel seat and the connecting rod to realize the powder pressing and slag discharge. The purpose is achieved through the following technical solutions.

[0004] A coffee brewer has a lower pressed powder and slag discharge push rod mechanism, wherein the coffee brewer comprises a brewing seat assembly and a brewing head assembly, wherein powder receiving ports and brewing ports are symmetrically arranged on both sides of the top of the brewing seat assembly, wherein a barrel body which rotates through a barrel seat is arranged inside the brewing seat assembly, wherein a lower pressed powder and slag discharge push rod which moves up and down is arranged at the bottom of the barrel body, and the lower pressed powder and slag discharge push rod drives the barrel seat to rotate through a rotary barrel motor on one side of the outer diameter of the brewing seat assembly so as to move the lower pressed powder and slag discharge push rod up and down; when the barrel body inside the brewing seat assembly rotates to the brewing port on one side of the brewing head assembly, the barrel body inside the brewing seat assembly is aligned with the upper pressed powder brewing push rod of the brewing head assembly, and the upper pressed powder brewing push rod of the brewing head assembly moves downward The coffee powder is pressed and sleeved into the barrel body of the brewing seat assembly, and an open slag discharge channel is provided on the outer side of the brewing head on one side of the brewing seat assembly; when the barrel body in the above-mentioned brewing seat assembly rotates to be aligned with the upper pressed powder brewing push rod of the brewing head assembly, the upper pressed powder brewing push rod of the brewing head assembly is pressed down and sleeved into the barrel body, while the lower pressed powder slag discharge push rod in the barrel body moves upward to compact the coffee powder in the barrel body to make coffee cakes, and hot water in the barrel body enters to extract and brew the coffee cakes. After the extraction and brewing is completed, the upper pressed powder brewing push rod is reset and the lower pressed powder slag discharge push rod continues to move upward. At the same time, the barrel body continues to rotate to one side of the slag discharge channel and pushes out the coffee slag cake, and the coffee slag cake falls out of the slag discharge channel of the shell. The key points of its structural design are that a connecting rod with one end inserted into the chamber at the bottom of the barrel body is provided at the groove on one side of the bottom of the barrel body of the brewing seat assembly, and the sliding hole at one end of the connecting rod is hinged with the one end of the lower pressed powder and slag discharge push rod extending out of the chamber at the bottom of the barrel body through a pin. At the same time, a sealing ring and a gasket are provided at the protruding part of the lower pressed powder and slag discharge push rod in the barrel body, and the shaft part at the other end of the connecting rod is buckled and fixed to the buckle grooves on both sides of the notch at the groove at the bottom of the barrel body. Side rods protruding toward one side of the slag pouring channel are respectively provided at both ends of the shaft part of the connecting rod, and the side rods of the connecting rod are located above the L-shaped protruding side rods on both sides of the barrel seat, and the convex columns on the inner sides of the side rods are respectively inserted into the grooves at the bottom of the barrel body. The slide grooves on both sides and the bends on both sides of the barrel seat are buckled and fixed to the shaft column of the outer diameter above the slide grooves on both sides of the barrel body. The other ends of the two sides of the barrel seat are connected as a whole and are in a U shape and are located on the outside of the barrel body. The shaft sleeve holes of the barrel rotating motor are respectively arranged on both sides of the buckled end of the bend of the barrel seat. The motor shaft of the barrel rotating motor is inserted into the shaft sleeve hole of the barrel seat through the first shell or the second shell; the connecting rod, barrel seat and barrel body of the brewing seat assembly are arranged in the shell formed between the first shell and the second shell. The two sides above the shaft column of the barrel body are symmetrically provided with raised swing shafts, and the swing shaft of the barrel body is respectively inserted into the first rotating groove and the second rotating groove on the inner side of the first shell and the second shell. Thereby, the linkage effect and stability of the barrel seat and the connecting rod driving the barrel body and the downward pressing powder and slag discharge push rod in the barrel body are improved, so that it is limited to the corresponding groove and track to realize the up and down operation. Further, the outer diameter of the downward pressing powder and slag discharge push rod in the barrel body can also be provided with a reset spring.

[0005] The groove at the bottom of the barrel body is symmetrically provided with a guide column protruding downward, the U-shaped opening at one end of the connecting rod is connected to the lower pressure powder discharge push rod, and the pin passes through the openings on both sides of the guide column. The lower pressure powder discharge push rod extending out of the groove at the bottom of the barrel body is symmetrically provided with flat key surfaces on both sides, and the flat key surfaces on both sides of the lower pressure powder discharge push rod are attached to the inner side surface of the U-shaped opening of the connecting rod through the openings on both sides of the guide column. The above structure further provides the temperature resistance of the lower pressure powder discharge push rod when it is operated up and down by the connecting rod, that is, the stability is improved through the flat key surfaces on both sides of the lower pressure powder discharge push rod and the corresponding inner side surfaces.

[0006] One end of the shaft of the connecting rod protrudes outwardly and is provided with a limiting shaft. When the barrel body of the brewing seat assembly rotates to the powder receiving port, the limiting shaft of the connecting rod abuts against the limiting part in the brewing seat assembly.

[0007] A water inlet is provided on one side of the slag pouring channel at the bottom of the barrel body, and the water inlet is connected to a pipe hole on one side of the brewing seat assembly through a hose.

[0008] The screw at one end of the upper pressed powder brewing push rod of the brewing seat assembly extends out of the motor gear assembly through the sleeve body, the motor shaft at the gear motor on the outer diameter side of the sleeve body is connected to the driving gear in the gear assembly, and the screw is connected to the inner thread at the center hole of the output gear in the gear assembly.

[0009] A slag pouring plate which is inclined and protrudes downward is provided on the outer diameter of the through hole at one side of the slag pouring channel of the brewing seat assembly.

[0010] A scraper assembly is provided above one side of the powder receiving port on the top of the brewing seat assembly, a cover hole of the scraper assembly is aligned with the powder receiving port, and a powder scraper plate is provided in the barrel cover assembly.

[0011] A raised crossbeam is provided between the first shell and the second shell above one side of the scraper assembly on one side of the slag pouring channel of the brewing seat assembly.

[0012] The utility model has a reasonable structural design, and the linkage and limiting effects between the lower pressed powder slag discharge push rod and the connecting rod and the barrel seat are good, which is convenient for the barrel body to continue to rotate after the pressed powder is extracted to realize slag discharge and reset to the starting position; the utility model is suitable for use as a lower pressed powder slag discharge push rod mechanism for a coffee brewer, and is a further improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial exploded structural schematic diagram of an embodiment of the utility model, in which the rotary drum motor is omitted.

[0014] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure after assembly, in which the dotted line is the internal structure of the brewing seat assembly.

[0015] Figure 3 yes Figure 2Schematic diagram of the internal structure of the barrel body of the brewing seat assembly, in which the first shell is omitted.

[0016] Figure 4 yes Figure 3 Schematic diagram of the barrel bottom and connecting rod structure, in which part A is framed.

[0017] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of part A.

[0018] Figure 6 yes Figure 4 Schematic diagram of the bottom structure in use status.

[0019] Serial numbers and names of the accompanying drawings: 1. Brewing head assembly, 101. Screw, 102. Gear assembly, 103. Sleeve, 104. Gear motor, 2. Scraper assembly, 3. Brewing seat assembly, 4. First shell, 401. First rotating groove, 5. Pressing powder and slag discharge push rod, 6. Connecting rod, 601. Slide hole, 602. Shaft, 603. Side rod, 604. Limiting shaft, 7. Bucket seat, 701. Boss, 8. Second shell, 9. Bucket body, 901. Slide, 902. Shaft column, 903. Swing shaft, 904. Slag pouring plate, 905. Guide column, 906. Water inlet, 10. Hose. Implementation

[0020] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 6As shown, the coffee brewer of the mechanism comprises a brewing seat assembly 3 and a brewing head assembly 1, the top two sides of the brewing seat assembly are symmetrically provided with a powder receiving port and a brewing port, a barrel body 9 which is rotated by a barrel seat 7 is provided inside the brewing seat assembly, a lower pressed powder slag discharge push rod 5 which moves up and down is provided at the bottom of the barrel body, and the lower pressed powder slag discharge push rod drives the barrel seat to rotate through a barrel rotating motor on one side of the outer diameter of the brewing seat assembly to move the lower pressed powder slag discharge push rod up and down; when the barrel body inside the brewing seat assembly rotates to the brewing port on one side of the brewing head assembly, the barrel body inside the brewing seat assembly is aligned with the upper pressed powder brewing push rod of the brewing head assembly, the upper pressed powder brewing push rod of the brewing head assembly is pressed down and inserted into the barrel body of the brewing seat assembly, and an open slag discharge channel is provided on the outer side of the brewing head on one side of the brewing seat assembly. A connecting rod 6 with one end inserted into the bottom chamber of the barrel body is provided at the groove on one side of the bottom of the barrel body of the brewing seat assembly, and a sliding hole 601 at one end of the connecting rod is hinged to one end of the downward pressed powder and slag discharge push rod extending out of the bottom chamber of the barrel body through a pin. At the same time, a sealing ring and a gasket are provided at the protruding part of the downward pressed powder and slag discharge push rod in the barrel body, and the shaft portion 602 at the other end of the connecting rod is fastened and fixed to the buckle grooves on both sides of the notch at the bottom of the barrel body. Side rods 603 extending toward one side of the slag pouring channel are respectively provided at both ends of the shaft portion of the connecting rod. The side rods of the connecting rod are located above the L-shaped protruding side rods on both sides of the barrel seat, and the convex columns 701 on the inner side of the side rods are respectively inserted into the sliding grooves on both sides of the groove at the bottom of the barrel body. 901, the bending parts on both sides of the barrel seat are buckled and fixed to the shaft column 902 of the outer diameter above the slide grooves on both sides of the barrel body, and the other ends of the two sides of the barrel seat are connected as a whole to form a U shape and are located on the outside of the barrel body. The buckling ends of the bending part of the barrel seat are respectively provided with shaft sleeve holes of the barrel rotating motor on both sides, and the motor shaft of the barrel rotating motor is inserted into the shaft sleeve hole of the barrel seat through the first shell 4 or the second shell 8; the connecting rod, barrel seat and barrel body of the brewing seat assembly are arranged in a shell formed between the first shell and the second shell, and raised swing shafts 903 are symmetrically provided on both sides above the shaft column of the barrel body, and the swing shafts of the barrel body are respectively inserted into the first rotating groove 401 and the second rotating groove on the inner sides of the first shell and the second shell.

[0021] The groove at the bottom of the barrel body is symmetrically provided with a downwardly protruding guide column 905, the U-shaped opening at one end of the connecting rod and the pin at the connection between the lower pressed powder discharge push rod pass through the openings on both sides of the guide column, and the lower pressed powder discharge push rod extending out of the groove at the bottom of the barrel body is symmetrically provided with flat key surfaces on both sides, and the flat key surfaces on both sides of the lower pressed powder discharge push rod are attached to the inner side of the U-shaped opening of the connecting rod through the openings on both sides of the guide column. One end of the shaft of the connecting rod is protruding outwardly and provided with a limit shaft 604, and when the barrel body of the brewing seat assembly rotates to the powder receiving port, the limit shaft of the connecting rod is against the limit part in the brewing seat assembly.

[0022] A water inlet 906 is provided on one side of the slag pouring channel at the bottom of the barrel body, and the water inlet is connected to the pipe hole on one side of the brewing seat assembly through a hose 10. The screw 101 at one end of the upper pressed powder brewing push rod of the brewing seat assembly extends out of the motor gear assembly 102 through the sleeve 103, and the motor shaft of the gear motor 104 on the outer diameter side of the sleeve is connected to the driving gear in the gear assembly, and the screw is connected to the inner thread at the center hole of the output gear in the gear assembly. A slag pouring plate 904 with a downward inclined protrusion is provided on the outer diameter of the through hole at the barrel body on one side of the slag pouring channel of the brewing seat assembly. A scraper assembly 2 is provided above one side of the powder receiving port at the top of the brewing seat assembly, and the cover hole of the scraper assembly is aligned with the powder receiving port, and a powder scraper plate is provided in the barrel cover assembly. A raised beam is provided between the first shell and the second shell on one side of the scraper assembly on the slag pouring channel of the brewing seat assembly.

[0023] The specific operations of the powder receiving state, powder pressing brewing state and slag discharge state of the mechanism are as follows: in the powder receiving state, the rotary barrel motor drives the barrel body of the brewing seat assembly back to the origin after being powered on, and the barrel mouth of the barrel body is vertically aligned with the powder receiving port of the shell; at the same time, the rotary barrel motor continues to rotate and drives the connecting rod through the barrel seat to make the lower powder pressing and slag discharge push rod of the brewing seat assembly return to the origin, so that an open cavity is generated in the barrel body, waiting for powder receiving, and the powder receiving action is completed at this time. In the powder pressing brewing state, the rotary barrel motor drives the barrel body of the brewing seat assembly to the side of the brewing head assembly under power on, and the barrel mouth of the barrel body is vertically aligned with the brewing port of the shell, and the gear motor drives the screw rod to move downward, and the upper powder pressing and brewing push rod is pressed into the barrel body. At the same time, the rotary barrel motor drives the connecting rod through the barrel seat to make the lower powder pressing and slag discharge push rod of the brewing seat assembly move upward, and the coffee powder in the barrel body is made into a powder cake; then, wait for the hot water from the boiler of the coffee machine to extract and brew coffee. In the slag discharge state, the rotary barrel motor drives the barrel body of the brewing seat assembly, and the gear motor drives the upper pressed powder brewing push rod to reset through the screw. At the same time, the rotary barrel motor continues to rotate to one side of the slag pouring channel and drives the lower pressed powder slag discharge push rod of the brewing seat assembly to push the coffee slag cake out of the barrel body. The coffee slag cake falls out of the shell through the slag pouring plate, completing the slag discharge action.

Claims

1. A coffee brewer with a lower pressed powder discharge push rod mechanism, the coffee brewer comprising a brewing seat assembly (3) and a brewing head assembly (1), the top two sides of the brewing seat assembly being symmetrically provided with a powder receiving port and a brewing port, a barrel body (9) rotating through a barrel seat (7) being provided inside the brewing seat assembly, a lower pressed powder discharge push rod (5) moving up and down being provided at the bottom of the barrel body, the lower pressed powder discharge push rod being driven by a barrel rotating motor on one side of the outer diameter of the brewing seat assembly to rotate the barrel seat so as to move the lower pressed powder discharge push rod up and down; when the barrel body inside the brewing seat assembly rotates to the brewing port on one side of the brewing head assembly, the barrel body inside the brewing seat assembly is aligned with the upper pressed powder brewing push rod of the brewing head assembly, the upper pressed powder brewing push rod of the brewing head assembly is pressed down and inserted into the barrel body of the brewing seat assembly, and an open discharge channel is provided on the outer side of the brewing head on one side of the brewing seat assembly; characterized in that A connecting rod (6) having one end inserted into the chamber at the bottom of the barrel body is provided at a slot on one side of the bottom of the barrel body of the brewing seat assembly (3); a sliding hole (601) at one end of the connecting rod is hingedly connected to one end of a downward pressed powder slag discharge push rod (5) extending out of the chamber at the bottom of the barrel body through a pin; a sealing ring and a gasket are provided at the extending portion of the downward pressed powder slag discharge push rod in the barrel body; a shaft portion (602) at the other end of the connecting rod is buckled and fixed to buckle grooves on both sides of the slot at the bottom of the barrel body; side rods (603) extending toward one side of the slag discharge channel are provided at both ends of the shaft portion of the connecting rod; the side rods of the connecting rod are located above the L-shaped protruding side rods on both sides of the barrel seat (7); and the convex columns (701) on the inner sides of the side rods are respectively inserted into the slots at the bottom of the barrel body. The barrel seat has two slide grooves (901) on both sides, the bends on both sides of the barrel seat are buckled and fixed to the shaft columns (902) on the outer diameter above the slide grooves on both sides of the barrel body, the other ends of the two sides of the barrel seat are connected as a whole to form a U shape and are located on the outside of the barrel body, the buckled ends of the bend of the barrel seat are respectively provided with shaft sleeve holes for the barrel rotating motor, and the motor shaft of the barrel rotating motor is inserted into the shaft sleeve holes of the barrel seat through the first shell (4) or the second shell (8); the connecting rod, barrel seat and barrel body of the brewing seat assembly are arranged in a shell formed between the first shell and the second shell, and protruding swing shafts (903) are symmetrically provided on both sides above the shaft column of the barrel body, and the swing shafts of the barrel body are respectively inserted into the first rotating groove (401) and the second rotating groove on the inner sides of the first shell and the second shell.

2. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that A downwardly protruding guide column (905) is symmetrically arranged in the groove at the bottom of the barrel body (9), and a pin at the connection between the U-shaped opening at one end of the connecting rod (6) and the lower powder pressing and slag discharge push rod (5) passes through the openings on both sides of the guide column, and the lower powder pressing and slag discharge push rod extending out of the groove at the bottom of the barrel body is symmetrically provided with flat key surfaces on both sides, and the flat key surfaces on both sides of the lower powder pressing and slag discharge push rod are attached to the inner side surface of the U-shaped opening of the connecting rod through the openings on both sides of the guide column.

3. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that One end of the shaft portion (602) of the connecting rod (6) is protruding outwards and is provided with a limiting shaft (604); when the barrel body (9) of the brewing seat assembly (3) rotates to the powder receiving port, the limiting shaft of the connecting rod abuts against the limiting portion in the brewing seat assembly.

4. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that A water inlet (906) is provided on one side of the slag pouring channel at the bottom of the barrel body (9), and the water inlet is connected to a pipe hole on one side of the brewing seat assembly (3) via a hose (10).

5. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that A screw rod (101) at one end of the upper pressed powder brewing push rod of the brewing seat assembly (3) extends out of the motor gear assembly (102) through a sleeve (103); a motor shaft at a gear motor (104) on the outer diameter side of the sleeve is connected to a driving gear in the gear assembly; and the screw rod is internally threadedly connected to a center hole of an output gear in the gear assembly.

6. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that A downwardly inclined convex slag pouring plate (904) is provided on the outer diameter of a through hole at one side of the slag pouring channel of the brewing seat assembly (3) at the barrel body (9).

7. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 1, characterized in that A scraper assembly (2) is provided above one side of the powder receiving port at the top of the brewing seat assembly (3), the cover hole of the scraper assembly is aligned with the powder receiving port, and a powder scraper is provided inside the barrel cover assembly.

8. The coffee brewer lower pressing powder and slag discharge push rod mechanism according to claim 7, characterized in that A raised crossbeam is provided between the first shell (4) and the second shell (8) above one side of the scraper assembly (2) on one side of the slag pouring channel of the brewing seat assembly (3).

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