Brewing cavity connecting rod mechanism of capsule coffee machine

Abstract

The utility model relates to a brewing cavity connecting rod mechanism of a capsule coffee machine, which aims at solving the technical problems that the connecting rod structure of the existing similar capsule products is poor in stability and lacks an internal track groove structure design and an open notch for installation and fixation. According to the key points, a connecting rod assembly of the mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, an inner side included angle larger than 120 degrees and smaller than 150 degrees is formed between the two ends of the second connecting rod, and one end of the third connecting rod is hinged to a convex lug in the middle of the bottom of a brewing base of a brewing head assembly through a sixth connecting rod shaft; one end of the first connecting rod is hinged to one end of an L-shaped connecting plate at one end of a capsule push plate through a second connecting rod shaft, the capsule push plate and the L-shaped connecting plate are integrally formed, and the two ends of a sixth connecting rod shaft extend out of rail grooves formed in the inner walls of the two sides of the brewing cavity shell below the mounting lugs correspondingly; the two ends of the fourth connecting rod shaft extend out of hinge holes fixed to an upper shell opening of the brewing cavity shell in the rail grooves respectively, and the telescopic folding movement process of the connecting rod assembly is triangular.

Description

Technical Field

[0001] The utility model relates to a connecting rod assembly of a brewing chamber of a capsule coffee machine, which is a connecting rod mechanism of the brewing chamber of a capsule coffee machine. Background Art

[0002] At present, the coffee capsule in the capsule coffee machine needs to be placed in the capsule cavity in the coffee machine. When the rocker is pressed down, the coffee capsule is pierced and opened. At the same time, hot water enters the coffee capsule through the coffee machine and mixes with the coffee powder to brew a cup of coffee. There are existing capsule coffee machines with such connecting rod structures and a capsule insertion port on the top, such as the application No. 201020262230.2 disclosed in the Chinese patent literature, the authorization announcement date is 2011.01.26, and the utility model name is "handle transmission device of coffee machine brewing system"; another example is the application No. 201620838956.3 disclosed in the Chinese patent literature, the authorization announcement date is 2017.11.14, and the utility model name is "a soft capsule coffee machine". However, the connecting rod structure stability of the above products and similar products is poor, lacks the internal track groove structure design, and the opening method of the notch installation is fixed, which makes the production and assembly more inconvenient, and is prone to jamming, stagnation and blockage, as well as the problems of weak connecting rod pushing and contraction force and poor stability. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a capsule coffee machine brewing chamber connecting rod mechanism to the art, so as to solve the technical problems of the existing similar rubber products, such as the poor stability of the connecting rod structure, the lack of internal track groove structure design, and the opening-type notch installation and fixation, which leads to inconvenient production and assembly, easy to produce jams and unsmoothness, and the weak pushing and contraction force and poor stability of the connecting rod. The purpose is achieved through the following technical solutions.

[0004] A capsule coffee machine brewing chamber connecting rod mechanism, a connecting rod assembly of a connecting rod push plate assembly and a brewing head assembly are arranged in the cavity at one end of the brewing chamber shell of the mechanism, the connecting rod assembly of the connecting rod push plate assembly drives the brewing head assembly to make linear motion in the brewing chamber shell through the capsule push plate; a liquid outlet funnel is arranged at the cavity opening at the other end of the brewing chamber shell, a notch for placing a capsule is arranged at the top of the brewing shell on one side of the liquid outlet funnel, a piercing blade is arranged at the bottom of the bubble head assembly, a discharge hole is arranged at the brewing chamber shell below the notch, and a liquid outlet hole is arranged at the bottom of the liquid outlet funnel on one side of the discharge hole. The key points of its structural design are that the connecting rod assembly of the connecting rod push plate assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. An inner angle greater than 120 degrees and less than 150 degrees is provided between the two ends of the second connecting rod. A fourth connecting rod shaft is provided at the corner in the middle of the second connecting rod. One end of the second connecting rod is hinged to one end of the first connecting rod through the third connecting rod shaft, the other end of the second connecting rod is hinged to one end of the third connecting rod through the fifth connecting rod shaft, the other end of the third connecting rod is hinged to the lug in the middle of the bottom of the brewing seat of the brewing head assembly through the sixth connecting rod shaft, the other end of the first connecting rod is hinged to one end of the L-shaped connecting plate at one end of the capsule push plate through the second connecting rod shaft, the other end of the L-shaped connecting plate is fixed to the mounting ears symmetrically arranged on both sides of the opening at one end of the top of the brewing chamber shell through the first connecting rod shaft, the two ends of the sixth connecting rod shaft respectively extend out of the track grooves arranged on the inner walls on both sides of the brewing chamber shell below the mounting ears, and the two ends of the fourth connecting rod shaft respectively extend out of the hinge holes fixed to the upper shell opening of the brewing chamber shell at the track groove. The telescopic and folding movement process of the above-mentioned connecting rod assembly is triangular, which is stable, firm and powerful, and is not prone to jamming, obstruction and blockage. The opening design on one side of the top shell of the brewing chamber shell facilitates the installation of the connecting rod push plate assembly and the use of the space after the connecting rod assembly is retracted. The inner angle of the above-mentioned second connecting rod is optimally 130 degrees.

[0005] An inner oblique groove is provided on the inner side of the second connecting rod at the hinged connection between the second connecting rod and the third connecting rod. When the connecting rod assembly of the connecting rod push plate assembly is in the folded state, the third connecting rod is limited to the inner oblique groove of the second connecting rod, and the hinged connection between the second connecting rod and the third connecting rod extends out of the opening at the bottom end of the brewing chamber housing below. The above minimizes the space occupation, and the connecting rod is limited in the folded state.

[0006] The capsule push plate is integrally formed with the L-shaped connecting plate. The L-shaped connecting plate is fixed to the capsule push plate through a bottom plate on one side.

[0007] The other end of the capsule push plate extends outwardly and is located above the gap of the brewing chamber housing for inserting the capsule, so that the capsule push plate can cover the gap of the brewing chamber housing in the use state to prevent the capsule from being inserted.

[0008] A spring is arranged in the third connecting rod at the hinged position between the brewing seat and the third connecting rod of the brewing head assembly, and the spring abuts against the fifth connecting rod shaft passing through the third connecting rod. The spring is used for buffering the corresponding connecting rod and the hinged position.

[0009] The brewing seat of the brewing head assembly is fixed with a cup seat, the outer diameter of the cup mouth of the cup seat is provided with a cup mouth sleeve connected as a whole, the outer diameter of the cup mouth sleeve extending out of the brewing seat is provided with a cup outer sleeve, the outer diameter of the cup seat in the brewing seat is provided with an O-ring, one side of the bottom of the brewing seat is provided with a liquid inlet hole, the liquid inlet hole of the brewing seat is provided with a valve needle, one end of the valve needle extends into one side of the bottom of the cup seat, and the cup seat in the brewing head assembly is communicated with the brewing seat. The above is a specific embodiment of the brewing head assembly, and other existing brewing head assemblies can also be used.

[0010] The piercing blade of the brewing head assembly is arranged at the bottom of the cup seat in the brewing seat, a water filter assembly is arranged in the brewing chamber housing at one end of the liquid outlet funnel, and a sealing ring is arranged on the outer diameter of the breaking plate of the water filter assembly. The breaking plate of the water filter assembly is arranged as required.

[0011] The utility model has reasonable structural design, convenient production and assembly, wide application range, good stability, and the connecting rod is not prone to jamming, stagnation and blockage. The utility model is suitable for use as a connecting rod mechanism for a brewing chamber of a capsule coffee machine, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a partial exploded structural schematic diagram of an embodiment of the utility model, in which the O-ring of the outer diameter of the brewing seat is omitted.

[0013] Figure 2 yes Figure 1 Schematic diagram of the sectional structure after assembly.

[0014] Figure 3 yes Figure 2 A schematic diagram of a three-dimensional structure, in which the dotted line represents the internal structure of the brewing chamber shell.

[0015] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the capsule push plate in the open state.

[0016] Serial numbers and names of the accompanying drawings: 1. brewing chamber shell, 101. mounting ear, 102. track groove, 103. hinge hole, 2. liquid outlet funnel, 3. brewing head assembly, 301. brewing seat, 3011. liquid inlet hole, 302. cup seat, 303. cup mouth sleeve, 304. cup outer sleeve, 305. piercing blade, 4. connecting rod push plate assembly, 401. capsule push plate, 4011. L-shaped connecting plate, 402. first connecting rod shaft, 403. first connecting rod, 404. second connecting rod shaft, 405. third connecting rod shaft, 406. second connecting rod, 4061. inner inclined groove, 407. fourth connecting rod shaft, 408. fifth connecting rod shaft, 409. spring, 410. third connecting rod, 411. sixth connecting rod shaft, 5. water filter assembly. Implementation

[0017] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 4 As shown, a connecting rod assembly of a connecting rod push plate assembly 4 and a brewing head assembly 3 are arranged in the cavity at one end of the brewing chamber shell 1 of the mechanism, and the connecting rod assembly of the connecting rod push plate assembly drives the brewing head assembly to make linear motion in the brewing chamber shell through the capsule push plate 401; a liquid outlet funnel 2 is arranged at the cavity opening at the other end of the brewing chamber shell, a notch for placing a capsule is arranged at the top of the brewing shell on one side of the liquid outlet funnel, a piercing blade 305 is arranged at the bottom of the brewing head assembly, a discharge hole is arranged at the brewing chamber shell below the notch, and a liquid outlet hole is arranged at the bottom of the liquid outlet funnel on one side of the discharge hole. The connecting rod assembly of the connecting rod push plate assembly includes a first connecting rod 403, a second connecting rod 406, and a third connecting rod 410. An inner angle is set between the two ends of the second connecting rod. A fourth connecting rod shaft 407 is set at the corner in the middle of the second connecting rod. One end of the second connecting rod is hinged to one end of the first connecting rod through the third connecting rod shaft 405, and the other end of the second connecting rod is hinged to one end of the third connecting rod through the fifth connecting rod shaft 408. The other end of the third connecting rod is hinged to the bottom of the brewing seat 301 of the brewing head assembly through the sixth connecting rod shaft 411. The first connecting rod is hinged with a lug at the middle, the other end of the first connecting rod is hinged with one end of the L-shaped connecting plate 4011 at one end of the capsule push plate 401 through the second connecting rod shaft 404, the other end of the L-shaped connecting plate is fixed to the mounting ears 101 symmetrically arranged on both sides of the opening at one end of the top of the brewing chamber shell through the first connecting rod shaft 402, the two ends of the sixth connecting rod shaft respectively extend out of the track groove 102 arranged on the inner wall of the brewing chamber shell on both sides below the mounting ears, and the two ends of the fourth connecting rod shaft respectively extend out of the hinge hole 103 fixed to the upper shell opening of the brewing chamber shell at the track groove. The inner side of the second connecting rod at the hinge of the second connecting rod and the third connecting rod is provided with an inner oblique groove 4061, when the connecting rod assembly of the connecting rod push plate assembly is in a folded state, the third connecting rod is limited to the inner oblique groove of the second connecting rod, and the hinge of the second connecting rod and the third connecting rod extends out of the opening at the bottom shell opening of the brewing chamber shell below. The capsule push plate and the L-shaped connecting plate are integrally formed; the other end of the capsule push plate extends outward and is located above the notch of the brewing chamber shell into which the capsule is placed. A spring 409 is provided in the third connecting rod at the hinged joint between the brewing seat and the third connecting rod of the brewing head assembly, and the spring abuts against the fifth connecting rod shaft passing through the third connecting rod.

[0018] The brewing seat of the brewing head assembly is fixed with a cup seat 302, the outer diameter of the cup mouth of the cup seat is provided with an integrated cup mouth sleeve 303, the outer diameter of the cup mouth sleeve extending out of the brewing seat is provided with a cup outer sleeve, the outer diameter of the cup seat in the brewing seat is provided with an O-ring, a liquid inlet hole 3011 is provided on one side of the inner bottom of the brewing seat, the liquid inlet hole of the brewing seat is provided with a valve needle, one end of the valve needle extends into one side of the inner bottom of the cup seat, and the cup seat in the brewing head assembly is communicated with the brewing seat. The piercing blade of the brewing head assembly is arranged at the inner bottom of the cup seat in the brewing seat, a water filter plate assembly 5 is arranged in the brewing chamber shell at one end of the liquid outlet funnel, and a sealing ring is arranged on the outer diameter of the breaking plate of the water filter plate assembly.

[0019] The specific implementation plan is as follows: first, align the capsule with the notch of the brewing chamber shell and insert it, then push the capsule push plate downward to the bottom; during this process, the connecting rod assembly drives the brewing head assembly to extend forward to squeeze the capsule, so that the front end surface of the capsule fits tightly with the water filter assembly, and is pushed to the front of the capsule block, and at the same time, the piercing blade inside the brewing head assembly and the bursting plate of the water filter assembly are used to pierce the front and back ends of the capsule, and then the extraction work begins; finally, after the extraction is completed, push the capsule push plate upward to the top, during this process, the connecting rod assembly retracts and contracts backward, and moves the capsule backward in a straight line, the capsule connecting rod folds in a triangular shape, and the capsule falls out of the discharge hole below the notch and is discharged from the brewing chamber shell.

[0020] In summary, the above structure strengthens the telescopic strength and stability of the telescopic connecting rod, improves the placement of the capsule in the cavity during insertion and discharge, improves its smoothness and optimizes the motion connecting rod.

Claims

1. A brewing chamber connecting rod mechanism of a capsule coffee machine, wherein a connecting rod assembly of a connecting rod push plate assembly (4) and a brewing head assembly (3) are arranged in a cavity at one end of a brewing chamber shell (1) of the mechanism, and the connecting rod assembly of the connecting rod push plate assembly drives the brewing head assembly to perform linear motion in the brewing chamber shell through a capsule push plate (401); a liquid outlet funnel (2) is arranged at the cavity opening at the other end of the brewing chamber shell, a notch for placing a capsule is arranged at the top of the brewing chamber shell on one side of the liquid outlet funnel, a piercing blade (305) is arranged at the bottom of the brewing head assembly, a discharge hole is arranged at the brewing chamber shell below the notch, and a liquid outlet hole is arranged at the bottom of the liquid outlet funnel on one side of the discharge hole; characterized in that The connecting rod assembly of the connecting rod push plate assembly (4) comprises a first connecting rod (403), a second connecting rod (406), and a third connecting rod (410); an inner angle greater than 120 degrees and less than 150 degrees is provided between the two ends of the second connecting rod; a fourth connecting rod shaft (407) is provided at the corner in the middle of the second connecting rod; one end of the second connecting rod is hinged to one end of the first connecting rod via the third connecting rod shaft (405); the other end of the second connecting rod is hinged to one end of the third connecting rod via the fifth connecting rod shaft (408); the other end of the third connecting rod is hinged to the brewing head assembly (3) via the sixth connecting rod shaft (411). The lug is hinged at the middle of the bottom of the seat (301), the other end of the first connecting rod is hinged to one end of the L-shaped connecting plate (4011) at one end of the capsule push plate (401) through the second connecting rod shaft (404), the other end of the L-shaped connecting plate is fixed to the mounting ears (101) symmetrically arranged on both sides of the opening at one end of the top of the brewing chamber shell (1) through the first connecting rod shaft (402), the two ends of the sixth connecting rod shaft respectively extend out of the track grooves (102) arranged on the inner walls of both sides of the brewing chamber shell below the mounting ears, and the two ends of the fourth connecting rod shaft respectively extend out of the hinge holes (103) fixed to the upper shell opening of the brewing chamber shell at the track groove.

2. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that An inner oblique groove (4061) is provided on the inner side of the second connecting rod at the hinged joint between the second connecting rod (406) and the third connecting rod (410); when the connecting rod assembly of the connecting rod push plate assembly (4) is in a folded state, the third connecting rod is restrained and located in the inner oblique groove of the second connecting rod, and the hinged joint between the second connecting rod and the third connecting rod extends out of the opening at the bottom end of the brewing chamber shell (1) below.

3. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that The capsule pushing plate (401) and the L-shaped connecting plate (4011) are integrally formed.

4. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that The other end of the capsule pushing plate (401) extends outward and is located above the notch of the brewing chamber housing (1) into which the capsule is placed.

5. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that A spring (409) is provided in the third connecting rod at the hinged joint between the brewing seat (301) of the brewing head assembly (3) and the third connecting rod (410), and the spring abuts against a fifth connecting rod shaft (408) passing through the third connecting rod.

6. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that A cup seat (302) is fixedly arranged inside the brewing seat (301) of the brewing head assembly (3); the outer diameter of the cup mouth of the cup seat is provided with a cup mouth sleeve (303) connected as an integral body; the outer diameter of the cup mouth sleeve extending out of the brewing seat is provided with a cup outer sleeve; an O-ring is provided on the outer diameter of the cup seat inside the brewing seat; a liquid inlet hole (3011) is provided on one side of the inner bottom of the brewing seat; a valve needle is provided in the liquid inlet hole of the brewing seat; one end of the valve needle extends into one side of the inner bottom of the cup seat; the cup seat in the brewing head assembly is communicated with the brewing seat.

7. The brewing chamber connecting rod mechanism of the capsule coffee machine according to claim 1, characterized in that The piercing blade (305) of the brewing head assembly (3) is arranged at the bottom of the cup seat (302) in the brewing seat (301); a water filter assembly (5) is arranged in the brewing chamber housing (1) at one end of the liquid outlet funnel (2); and a sealing ring is arranged on the outer diameter of the piercing plate of the water filter assembly.

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