CN215650534U

CN215650534U - Hand-pulling driving structure for capsule coffee brewing device

Info

Publication number: CN215650534U
Application number: CN202121959830.9U
Authority: CN
Inventors: 高元英; 陈高
Original assignee: Individual
Current assignee: Guangdong Mifan Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-01-28
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a hand-operated driving structure for a capsule coffee brewing device, which comprises an operating rod hinged on a shell, wherein a driving gear of the operating rod is meshed with a transmission gear which is matched with the shell in a rotating way through a transmission gear shaft, the transmission gear is meshed with a gear at the rear end of a connecting rod hinged on the shell, the front end of a first connecting rod is hinged with the rear end of a second connecting rod, and the front end of the second connecting rod is hinged with a cup body component of a capsule box of the coffee brewing device, so that the cup body component is driven to axially move back and forth in the shell through the hand-operated driving structure to realize the closing or the releasing of the cup body component; the transmission gear shafts at two ends of the transmission gear are symmetrically sleeved with damping sleeves and damping springs, two ends of each damping spring are respectively abutted to the damping sleeves and the shell, each damping sleeve is a circular stepped sleeve, the inner end face of each large-diameter sleeve is attached to one end face of the transmission gear, and the damping springs are sleeved outside the small-diameter sleeves. The hand-pulling driving structure has smooth driving process, comfortable experience feeling of operators and low failure rate.

Description

Hand-pulling driving structure for capsule coffee brewing device

Technical Field

The utility model relates to the technical field of coffee machines, in particular to a hand-pulling driving structure for a capsule coffee brewing device.

Background

A capsule coffee machine is one type of coffee machine. The coffee capsule brewing device is a core component of a capsule coffee machine and generally comprises a shell, a cup cover component arranged at the front end in the shell and communicated with a coffee liquid outlet pipe, a hook component temporarily hooking the coffee capsule, and a cup body component capable of axially moving back and forth in the shell and used for forming a capsule box for containing the coffee capsule and extracting coffee liquid together with the cup cover component, wherein a puncturing device for puncturing the front end of the coffee capsule is arranged on the cup cover component, a puncturing device for puncturing the rear end of the coffee capsule is arranged on the cup body component, a one-way valve component communicated with the interior of the coffee capsule and used for water inlet is arranged at the rear end of the cup body component, and the rear end of the cup body component is hinged with a connecting rod in a hand-operated driving device. When coffee needs to be extracted, the coffee capsule can be placed in the coffee capsule brewing device by pulling the hand-operated driving device, and then a series of operations such as sealing, puncturing, water inlet, brewing, coffee liquid outlet and the like can be carried out on the coffee capsule by pulling the hand-operated driving device.

Compared with electric, pneumatic and hydraulic driving structures, the hand-operated driving structure, also called hand-operated driving component or hand-operated driving device, has the advantages of electricity cost saving and joyful feeling of brewing extraction participation. However, the prior art hand-pulling driving structure for the capsule coffee brewing device still has the following defects, in the process of pulling the operating rod by hand, the weight of the applied force is difficult to accurately grasp, the applied force is not in place, the cup body assembly and the cup cover assembly are not in a pressing and sealing state and the coffee extraction brewing effect is influenced, the cup body assembly and the cup cover assembly are easy to collide by too much force, the operating personnel still have inertia driving and displacement after loosening the operating rod, the hand plate driving process has a concave-convex encumbrance, uncomfortable experience is brought to the operating personnel, and the device fault is easy to cause. In addition, the hand plate driving structure in the prior art adopts a structure that a rack and pinion, or a plurality of levers are hinged, or a pull rod is provided with a plurality of hinged points, or the pull rod and a driving gear are separately installed, or the pull rod is hinged outside two sides of the shell by adopting a U-shaped structure, so that the structure of the hand plate driving structure is relatively complex, the occupied space position is relatively large, and the volume of the capsule coffee brewing device is relatively large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a hand-pulling driving structure for a capsule coffee brewing device, which has smooth driving process, comfortable experience of operators and low failure rate.

The technical scheme includes that the hand-operated driving structure for the capsule coffee brewing device comprises an operating rod hinged on a shell, a driving gear of the operating rod is meshed with a transmission gear which is matched with the shell in a rotating mode through a transmission gear shaft, the transmission gear is meshed with a gear at the rear end of a connecting rod hinged on the shell, the other end of the first connecting rod is hinged with one end of a second connecting rod, the other end of the second connecting rod is hinged with a cup body assembly of a capsule box of the coffee brewing device, and therefore the cup body assembly is driven to axially move back and forth in the shell through the hand-operated driving structure to be closed or separated from a cup cover assembly; the transmission gear shafts at the two ends of the transmission gear are symmetrically sleeved with damping sleeves and damping springs, and the two ends of the damping springs are respectively abutted to the damping sleeves and the shell.

After adopting the structure, the hand-pulling driving structure for the capsule coffee brewing device has the following advantages: because the damping sleeve and the damping spring are symmetrically arranged between the two sides of the transmission gear and the shell, spring damping force is formed when an operator or a user swings the operating rod, the weight of force application is easy to control in the process of manually pulling the operating rod, the phenomenon that the force application is not in place or the force application is too violent is avoided, the reciprocating process of the cup body component driven by the manual pulling driving structure is smooth, the operating rod is loosened by the operator, the manual pulling driving structure and the cup body component stop immediately, and comfortable experience is brought to the operator. Meanwhile, the quality and the effect of coffee brewing and extraction are ensured, the damage of collision to the device is prevented, faults caused by the inertial motion of the hand-pulling driving structure are obviously reduced or avoided, the fault rate is low, and the service life of the device is prolonged. The hand-pulling driving structure has simple and compact structure and small occupied space, so that the capsule coffee brewing device adopting the hand-pulling driving structure has relatively reduced volume and relatively saved material cost.

Furthermore, the damping sleeve is a circular stepped sleeve, the inner end face of the large-diameter sleeve is attached to one end face of the transmission gear, the damping spring is sleeved outside the small-diameter sleeve, the inner end face of the damping spring abuts against the outer end face of the large-diameter sleeve, and the outer end face of the damping spring abuts against the shell. After adopting above structure, further guaranteed the prediction and reasonable damping force, made the reciprocating motion process of the cup body subassembly of spanner drive structure drive more smooth and easy, had and made damping subassembly simple structure, reliable and economize on material.

Furthermore, the operating rod is a rectangular plate, the driving gear is fixedly connected with the rectangular plate, the length of the driving gear is smaller than the width of the rectangular plate, the driving gear is n-shaped, a plurality of second teeth meshed with a plurality of first teeth on one side of the transmission gear are arranged on the arc surface of the top of the driving gear, a first shaft hole is formed in the radius of the arc part, and the first shaft hole is rotatably connected to the driving gear shaft fixedly connected to the rear end of the shell. After the structure is adopted, the connecting structure of the operating rod and the transmission gear is simple, compact and small, the space occupied at the rear end of the shell is small, and the operation is labor-saving, stable and reliable.

Furthermore, the first connecting rod is a composite connecting rod and is composed of two outer plate-shaped connecting rod bodies and a reinforcing connecting body in the middle of the width, the rear ends of the two plate-shaped connecting bodies are respectively provided with a second shaft hole, the longitudinal section of the reinforcing connecting body in the middle is similar to the vertical section of a water drop shape, the center of a water drop-shaped big head is provided with a third shaft hole, a plurality of fourth teeth meshed with a plurality of third teeth on the other side of the transmission gear are arranged on a part of arc surface of the water drop-shaped big head, and the rear ends of the two plate-shaped connecting bodies and the reinforcing connecting body are rotatably connected with the shell through the second shaft holes, the third shaft holes and the first connecting rod shaft. After the structure is adopted, the first connecting rod has firm structure, good mechanical property of stress, and functions of the gear and the connecting rod, and has simple and compact connecting structure with the transmission gear, small volume, small occupied space of the shell, and labor-saving, stable and reliable operation.

Furthermore, the front ends of the two plate-shaped connecting bodies are respectively provided with a fourth shaft hole, the rear ends of the two second connecting rods positioned outside the two plate-shaped connecting bodies are respectively provided with a fifth shaft hole, and the front ends of the two plate-shaped connecting bodies are hinged with the rear ends of the two second connecting rods through the fourth shaft holes, the fifth shaft holes and the second connecting rod shafts. After the structure is adopted, the front end of the first connecting rod and the rear end of the second connecting rod rotate flexibly, and the pushing or pulling is stable and reliable.

Furthermore, the cup body connectors on two sides of the rear end of the cup body assembly are respectively provided with a U-shaped groove with an opening facing the second connecting rod, the front ends of the second connecting rods are inserted into the respective U-shaped grooves, the cup body connectors on two sides of the U-shaped grooves are respectively provided with a sixth shaft hole tightly matched with a cup body hinge shaft, and the cup body hinge shaft is in running fit with a seventh shaft hole in the front end of the second connecting rod so that the front end of the second connecting rod is hinged with the rear end of the cup body assembly. After the structure is adopted, the connecting structure of the rear end of the cup body assembly and the transmission gear is compact and small, the rear end of the cup body assembly and the front end of the second connecting rod rotate flexibly, and the pushing or pulling is stable and reliable.

Drawings

FIG. 1 is a schematic view of a coffee brewing apparatus for capsules using the manually actuated drive assembly of the present invention.

Fig. 2 is an exploded view of a portion of the structure of fig. 1 (exploded out of the wrench drive assembly and showing the cup body hinged thereto).

FIG. 3 is a schematic perspective view of the first embodiment of the present invention (omitting the lever with the driving gear) when the wrench driving assembly is hinged to the cup body assembly.

FIG. 4 is a schematic perspective view of the second embodiment of the present invention (omitting the operating lever with the driving gear) when the wrench driving assembly is hinged to the cup body assembly.

Fig. 5 is a schematic longitudinal sectional view of the trigger actuated mechanism of fig. 1 pulled rearwardly to open the cup body assembly.

FIG. 6 is a schematic longitudinal sectional view of the capsule case formed by the cup body assembly and the cap assembly closed by forward pushing of the hand-operated driving device in FIG. 1.

Shown in the figure: 1. a housing, 2, an operating rod, 3, a driving gear shaft, 4, a first spring clip, 5, a driving gear shaft, 6, a second spring clip, 7, a first link shaft, 8, a seventh shaft hole, 9, a fifth shaft hole, 10, a driving gear, 11, a first shaft hole, 12, a driving gear, 13, a damping sleeve, 14, a damping spring, 15, a second shaft hole, 16, a fourth shaft hole, 17, a second link shaft, 18, a cup body hinge shaft, 19, a sixth shaft hole, 20, a cup body assembly, 21, a second link, 22, a first link, 23, a fourth tooth, 24, a third tooth, 25, a U-shaped groove, 26, a reinforcing connector, 27, a plate-shaped connector, 28, a large diameter sleeve, 29, a small diameter sleeve, 30, a third spring clip, 31, a cup body connector, a cup cover 32, a first tooth, 33, a second tooth, 34, a link rear end gear, 35, a hook assembly, 36, and an assembly, 37. capsule box 38, third shaft hole 39, check valve assembly 40, coffee capsule 41, coffee outlet pipe.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It is to be noted that the description of the embodiments is provided to aid understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2, 3, 4, 5 and 6.

A capsule coffee machine is one type of coffee machine. The coffee capsule brewing device is a core part of a capsule coffee machine and generally comprises a shell 1, a cup cover component 36 which is arranged at the front end in the shell 1 and communicated with a coffee outlet pipe 41, a hook component 35 for temporarily hooking a coffee capsule 40, and a cup body component 20 which can axially move back and forth in the shell 1 and is used for forming a capsule box 37 for containing the coffee capsule 40 and extracting coffee liquid with the cup cover component 36, wherein a puncturing device for puncturing the front end of the coffee capsule 40 is arranged on the cup cover component 36, a puncturing device for puncturing the rear end of the coffee capsule 40 is arranged on the cup body component 20, a check valve component 39 which is communicated with the interior of the coffee capsule 40 and is used for feeding water is arranged at the rear end of the cup body component 20, and the rear end of the cup body component 20 is hinged with a connecting rod in a hand-pulling driving device. When coffee needs to be extracted, the coffee capsule 40 can be placed into the coffee capsule brewing device from top to bottom by turning the hand-operated driving device, and then a series of operations such as sealing, puncturing, water inlet, brewing, coffee liquid outlet and the like can be carried out on the coffee capsule 40 by turning the hand-operated driving device. It is understood that water ingress refers to boiling water.

The utility model is characterized in that:

the utility model relates to a hand-pulling driving structure for a capsule coffee brewing device, which comprises an operating rod 2 hinged on a shell 1, wherein a driving gear 12 of the operating rod 2 is meshed with a transmission gear 10 which is matched on the shell 1 through a transmission gear shaft 5 in a rotating way, the transmission gear 10 is meshed with a connecting rod rear end gear 34 hinged on the shell 1, the front end of a first connecting rod 22 is hinged with the rear end of a second connecting rod 21, and the front end of the second connecting rod 21 is hinged with a cup body assembly 20 of a capsule box 37 of the coffee brewing device, so that the cup body assembly 20 is driven by the hand-pulling driving structure to move back and forth in the shell 1 in an axial direction to realize the closing or the releasing of the cup body assembly 36.

The transmission gear shaft 5 at two ends of the transmission gear 10 is symmetrically sleeved with damping sleeves 13 and damping springs 14, two ends of each damping spring respectively abut against the damping sleeves 13 and the shell 1. The damping sleeve 13 may be made of rubber or plastic. The damping spring 14 abuts against the housing 1 as the left and right walls of the housing 1. The hand-operated driving structure is also called as a hand-operated driving assembly or a hand-operated driving device or a hand-operated driving mechanism, and also called as a link mechanism or a linkage mechanism.

The damping sleeve 13 is preferably a circular stepped sleeve, the inner end surface of the large-diameter sleeve 28 is attached to one end surface, namely the left end surface or the right end surface, of the transmission gear 10, the damping spring 14 is sleeved outside the small-diameter sleeve 29, the inner end surface of the damping spring 14 abuts against the outer end surface of the large-diameter sleeve 28, the outer end surface of the damping spring 14 abuts against the left wall and the right wall of the shell 1, namely the outer end surface of the damping spring 14 on the left side abuts against the left wall of the shell 1, and the outer end surface of the damping spring 14 on the right side abuts against the right wall of the shell 1. Two ends of the transmission gear shaft 5 respectively penetrate through a shaft hole in the left wall and a shaft hole in the right wall of the shell 1, the transmission gear shaft 5 extends out of the left wall and the right wall of the shell 1 and is provided with a radial annular groove, the two first spring clamping pieces 4 are respectively clamped in the radial annular grooves to axially limit the transmission gear shaft 5, and the transmission gear shaft 5 is in running fit with the shaft hole in the left wall and the shaft hole in the right wall.

The operating rod 2 is preferably a rectangular plate, and the driving gear 12 is fixedly connected with the rectangular plate, such as welding, screw connection or integral forming, adhesive bonding and the like. The length dimension of the driving gear 12 is smaller than the width dimension of the rectangular plate, the driving gear 12 is preferably n-shaped, the arc surface at the top is provided with a plurality of second teeth 33 which are meshed with a plurality of first teeth 32 at one side of the transmission gear 10, such as the upper side, the radius of the arc part is provided with a first shaft hole 11, and the first shaft hole 11 is rotatably connected to the driving gear shaft 3 fixedly connected to the rear end of the shell 1. The first shaft hole 11 is also called a driving gear shaft hole, and the fixed connection can be interference fit or a shaft hole of a connecting lug at the rear end of the shell 1 screwed by a radial screw. The driving gear shaft 3 can also be called an operation rod shaft. The operating rod 2 is also called an operating plate or a handle. Fixedly connected, namely fixedly connected.

The first connecting rod 22 is preferably a composite connecting rod, and is composed of two outer plate-shaped connecting rod bodies 27 and a reinforcing connecting body 26 in the middle of the width, the rear ends of the two plate-shaped connecting bodies 27 are respectively provided with a second shaft hole 15, the longitudinal section of the reinforcing connecting body 26 in the middle is similar to the vertical section of a water drop, the center of a water drop-shaped big end is provided with a third shaft hole 38, a connecting rod rear end gear 34 is arranged on a part of the circular arc surface of the water drop-shaped big end, the connecting rod rear end gear 34 is provided with a plurality of fourth teeth 23 meshed with a plurality of third teeth 24 on the other side of the transmission gear 10, such as the lower side, and the rear ends of the two plate-shaped connecting bodies 27 and the reinforcing connecting body 26 are rotatably connected with the shell 1 through the second shaft holes 15, the third shaft holes 38 and the first connecting rod shaft 7. Two ends of the first connecting rod shaft 7 respectively penetrate through a shaft hole in the left wall and a shaft hole in the right wall of the shell 1, radial annular grooves are formed in positions, extending out of the left wall and the right wall of the shell 1, of the first connecting rod shaft 7, the two second spring clamping pieces 6 are respectively clamped in the radial annular grooves to axially limit the first connecting rod shaft 7, and the first connecting rod shaft 7 is in running fit with the shaft hole in the left wall and the shaft hole in the right wall. The second shaft hole 15 is also called a first link shaft hole or a plate-like link body shaft hole. The third shaft aperture 38 is also referred to as the first link shaft aperture or the reinforcement link shaft aperture. The link rear end gear 34 is also referred to as a first link rear end gear.

The front ends of the two plate-shaped connecting bodies 27 are respectively provided with a fourth shaft hole 16, the rear ends of the two second connecting rods 21 positioned outside the two plate-shaped connecting bodies 27 are respectively provided with a fifth shaft hole 9, and the front ends of the two plate-shaped connecting bodies 27 are hinged with the rear ends of the two second connecting rods 21 through the fourth shaft hole 16, the fifth shaft hole 9 and the second connecting rod shaft 17. The fourth shaft hole 16 is rotatably connected to the second connecting shaft 17, and the fifth shaft hole 9 is also rotatably connected to the second link shaft 17. The positions of the second connecting rod shaft 17 extending out of the second connecting rod 21 are provided with radial annular grooves, and the two third spring clamping pieces 30 are clamped in the radial annular grooves respectively to limit the second connecting rod shaft 17 axially. The fourth shaft hole 16 is also referred to as a second link shaft hole. The fifth shaft hole 9 is also called a second connecting rod shaft hole. The spring clip may also be referred to as a circlip.

The cup body connecting bodies 31 on two sides of the rear end of the cup body component 20 are respectively provided with a U-shaped groove 25 with an opening facing the second connecting rods 21, the front ends of the two second connecting rods 21 are inserted into the respective U-shaped grooves 25, the cup body connecting bodies 31 on two sides of the U-shaped grooves 25 are respectively provided with a sixth shaft hole 19 tightly matched with a cup body hinge shaft 18, and the cup body hinge shaft 18 is in running fit with a seventh shaft hole 8 at the front end of the second connecting rod 21 so that the front end of the second connecting rod 21 is hinged with the rear end of the cup body component 20. The sixth shaft hole 19 is called a cup body hinge shaft hole. The seventh shaft hole 8 is also called a cup body hinge shaft hole.

The above-mentioned left and right, up and down, front and back, etc. are for convenience of description and should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spanner drive structure for capsule coffee brewing device characterized in that: the coffee brewing device comprises an operating rod hinged on a shell, wherein a driving gear of the operating rod is meshed with a transmission gear which is in running fit with the shell through a transmission gear shaft, the transmission gear is meshed with a gear at the rear end of a connecting rod hinged on the shell, the front end of a first connecting rod is hinged with the rear end of a second connecting rod, and the front end of the second connecting rod is hinged with a cup body assembly of a capsule box of the coffee brewing device, so that the cup body assembly is driven to axially reciprocate back and forth in the shell through a hand-operated driving structure to close or separate from a cup cover assembly; the transmission gear shafts at the two ends of the transmission gear are symmetrically sleeved with damping sleeves and damping springs, and the two ends of the damping springs are respectively abutted to the damping sleeves and the shell.

2. The lever drive structure for a capsule coffee brewing apparatus according to claim 1, wherein: the damping sleeve is a circular stepped sleeve, the inner end face of the large-diameter sleeve is attached to one end face of the transmission gear, the damping spring is sleeved outside the small-diameter sleeve, the inner end face of the damping spring abuts against the outer end face of the large-diameter sleeve, and the outer end face of the damping spring abuts against the shell.

3. The lever drive structure for a capsule coffee brewing apparatus according to claim 1, wherein: the action bars is rectangular shaped plate, and the driving gear links firmly with rectangular shaped plate, and driving gear length dimension is less than rectangular shaped plate's width size, and the driving gear is the n font, and the arc surface at top is equipped with a plurality of second teeth with the meshing of a plurality of first teeth of drive gear one side, and the radius department of circular arc part has first shaft hole, and first shaft hole rotates to be connected on linking firmly the driving gear axle in the casing rear end.

4. The lever drive structure for a capsule coffee brewing apparatus according to claim 3, wherein: the first connecting rod is a composite connecting rod and consists of two outer plate-shaped connecting rod bodies and a reinforcing connecting body in the middle of the width, the rear ends of the two plate-shaped connecting bodies are respectively provided with a second shaft hole, the longitudinal section of the reinforcing connecting body in the middle is similar to the vertical section of a water drop shape, the center of a water drop-shaped big head is provided with a third shaft hole, a plurality of fourth teeth meshed with a plurality of third teeth on the other side of the transmission gear are arranged on a part of circular arc surface of the water drop-shaped big head, and the rear ends of the two plate-shaped connecting bodies and the reinforcing connecting body are rotationally connected with the shell through the second shaft holes, the third shaft holes and the first connecting rod shaft.

5. The lever drive structure for a capsule coffee brewing apparatus according to claim 4, wherein: the front ends of the two plate-shaped connecting bodies are respectively provided with a fourth shaft hole, the rear ends of the two second connecting rods positioned outside the two plate-shaped connecting bodies are respectively provided with a fifth shaft hole, and the front ends of the two plate-shaped connecting bodies are hinged with the rear ends of the two second connecting rods through the fourth shaft holes, the fifth shaft holes and the second connecting rod shafts.

6. The lever drive structure for a capsule coffee brewing apparatus according to claim 5, wherein: the cup body connectors on two sides of the rear end of the cup body assembly are respectively provided with a U-shaped groove with an opening facing the second connecting rod, the front ends of the second connecting rods are inserted into respective U-shaped grooves, the cup body connectors on two sides of the U-shaped grooves are respectively provided with a sixth shaft hole tightly matched with a cup body hinge shaft, and the cup body hinge shaft is in running fit with a seventh shaft hole at the front end of the second connecting rod so that the front end of the second connecting rod is hinged with the rear end of the cup body assembly.