Coupler and garbage disposer

Abstract

The utility model provides a coupling and garbage disposer, the garbage disposer includes garbage cutting piece and drive mechanism, the coupling is used for connecting garbage cutting piece and drive mechanism, drive mechanism is used for driving garbage cutting piece to rotate, the coupling includes upper coupling piece and lower coupling piece; a boss is arranged at the bottom of the upper coupling piece, and a groove is formed in the top of the lower coupling piece. The boss is in a regular polygon shape. The groove is in the shape of a regular polygonal star which is in central symmetry distribution with the two bosses; the upper coupling piece falls into the groove through the boss and is in transmission connection with the lower coupling piece, and operation is easy and fast.

Description

Technical Field

[0001] This utility model relates to a coupling and a waste disposal machine. Background Technology

[0002] Existing garbage disposers, such as the one disclosed in Chinese utility model patent CN221620339U, utilize a motor module (drive mechanism) to drive the rotating agitator blades (garbage cutters) to cut and pulverize the garbage. The motor module is an electric motor, and the agitator blades and motor module are detachably coupled for easy removal of the inner pot from the mounting cavity. However, existing coupled transmission structures typically use a single rotation-limiting surface on the motor's output shaft and the shaft of the agitator blades for connection. Since the agitator blades are installed inside the inner pot, the view is obstructed during installation, making alignment difficult. Repeated rotation of the inner pot is required to achieve correct alignment of the rotation-limiting surface, resulting in cumbersome operation and potential damage to the motor's output shaft. Utility Model Content

[0003] The purpose of this utility model is to provide a coupling for connecting a waste cutting component and a drive mechanism. The drive mechanism is used to drive the waste cutting component to rotate. The coupling includes an upper coupling for fixed connection with the waste cutting component and a lower coupling for fixed connection with the output shaft of the drive mechanism. The upper coupling has a boss at its bottom, and the lower coupling has a groove at its top. The boss is a regular polygon, and the groove is a regular polygonal star, with the number of corners of the groove being twice the number of corners of the boss. The upper coupling is connected to the lower coupling by the boss falling into the groove. When the boss falls into the groove, the corners of the boss fall into part of the corners of the groove, so that the upper coupling is circumferentially fixed relative to the lower coupling.

[0004] Furthermore, the boss is in the shape of an equilateral triangle; the groove is in the shape of a regular hexagonal star. That is, the upper coupling has six mounting positions, and the mounting positions can be switched every 60° of rotation of the upper coupling.

[0005] Furthermore, the corners of the boss and the corners of the groove are rounded.

[0006] Furthermore, the waste cutting component is provided with a rotating shaft, and a connecting portion is provided at the end of the rotating shaft. The connecting portion is polygonal, and the top of the upper coupling is provided with an upper limit groove for the connecting portion to be inserted. The shape of the upper limit groove corresponds to the connecting portion. The waste cutting component is limited by the cooperation between the polygonal connecting portion and the upper limit groove, which can prevent the waste cutting component from rotating relative to the upper coupling.

[0007] Furthermore, the connecting part is provided with an upper shaft connecting hole, and the boss is provided with an upper connecting hole that communicates with the upper limit groove. The upper connecting hole is used to connect with the upper shaft connecting hole.

[0008] Furthermore, the bottom of the lower coupling is provided with a lower limiting groove for the output shaft of the drive mechanism to be inserted, the side of the output shaft of the drive mechanism is provided with a shaft positioning surface, and the groove wall of the lower limiting groove is provided with a lower positioning plane parallel to the shaft positioning plane. The lower positioning plane is used for the shaft positioning plane to abut against to prevent the lower coupling from rotating relative to the output shaft.

[0009] Furthermore, the output shaft of the drive mechanism is provided with a lower shaft connection hole at its end, and the groove is provided with a lower connection hole that communicates with the lower limiting groove. The lower connection hole is used to connect with the lower shaft connection hole.

[0010] This utility model also proposes a garbage disposal machine, including a machine body, an inner bucket, a garbage cutting component, and a drive mechanism. The machine body has an inner cavity, the inner bucket is detachably installed in the inner cavity, the garbage cutting component is rotatably installed in the inner bucket, and the drive mechanism is fixed to the bottom of the machine body.

[0011] The waste disposal machine also includes the aforementioned coupling; the bottom of the inner bucket is provided with a shaft seat, the shaft seat is provided with a shaft hole, the waste cutting component is provided with a rotating shaft part, the rotating shaft part passes through the shaft hole and can rotate relative to the shaft hole; the upper coupling is fixedly connected to the rotating shaft part and exposed below the inner bucket; the lower coupling is fixedly connected to the output shaft of the drive mechanism, the lower coupling is located at the bottom of the inner cavity; when the inner bucket is installed in the inner cavity, the boss of the upper coupling falls into the groove of the lower coupling so that the waste cutting component is connected to the drive mechanism for transmission.

[0012] The coupling of this utility model is applied to a garbage disposal machine to realize the transmission connection and separation of the garbage cutting part and the drive mechanism. The upper coupling is connected to the lower coupling through the cooperation of a regular polygonal boss and a regular polygonal star-shaped groove. It has multiple installation positions. The boss of the upper coupling can fall into the groove of the lower coupling when the upper coupling is rotated at a certain angle. The operation is simple and quick, and it is convenient for the installation of the inner bucket of the garbage disposal machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the coupling of this utility model.

[0014] Figure 2 This is a cross-sectional view of the coupling of this utility model.

[0015] Figure 3 This is an exploded view of the coupling of this utility model.

[0016] Figure 4 This is a schematic diagram of the upper coupling of this utility model.

[0017] Figure 5 This is a schematic diagram of the lower coupling of this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the waste cutting component of this utility model.

[0019] Figure 7 This is a schematic diagram of the drive mechanism of this utility model.

[0020] Figure 8 This is a cross-sectional view of the mating structure of the inner bucket, garbage cutting component, drive mechanism, and coupling of this utility model.

[0021] Figure 9 For the present utility model Figure 8 The exploded diagram.

[0022] Figure 10 This is a schematic diagram of the fit between the upper coupling and the inner barrel of this utility model.

[0023] Figure 11 This is a schematic diagram of the fit between the lower coupling and the machine body of this utility model.

[0024] Figure 12 This is a partial sectional view of the waste disposal machine of this utility model. Detailed Implementation

[0025] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0026] See appendix Figure 1-11 A coupling and its application in a waste disposal machine, the waste disposal machine being used to shred kitchen waste, the waste disposal machine comprising a body 6, an inner bucket 5, a waste cutting component 3, and a drive mechanism 4.

[0027] The machine body 6 has an inner cavity 61 with an opening. An openable and closable top cover 62 is provided on the opening. The inner bucket 5 is detachably installed within the inner cavity 61. The waste cutter 3 is rotatably installed within the inner bucket 5. The drive mechanism 4 is fixed to the bottom of the machine body 6 and is used to drive the waste cutter 3 to rotate. The bottom of the inner bucket 5 has a shaft connector 51 with a shaft hole 52. The waste cutter 3 has a rotating shaft portion 31, which passes through the shaft hole 52 and can rotate relative to the shaft hole 52. The rotating shaft portion 31 is formed on the waste cutter 3 or fixedly connected to it. A bushing 7 is fitted onto the rotating shaft portion 31 of the waste cutter 3. Sealing rings 8 are respectively sandwiched between the waste cutter 3 and the shaft connector 51, and between the upper coupling 1 and the shaft hole 52.

[0028] The coupling is used to connect the waste cutter 3 and the drive mechanism 4. The coupling includes an upper coupling 1 for fixed connection with the waste cutter 3 and a lower coupling 2 for fixed connection with the output shaft 41 of the drive mechanism 4.

[0029] The upper coupling 1 has a boss 11 at its bottom, and the lower coupling 2 has a groove 21 at its top. The boss 11 is a regular polygon. The groove 21 is a regular polygonal star symmetrically distributed with respect to the two bosses 11. The upper coupling 1 is connected to the lower coupling 2 by the boss 11 falling into the groove 21. When the boss 11 falls into the groove 21, the corner of the boss 11 falls into part of the corner of the groove 21, so that the upper coupling 1 is circumferentially fixed relative to the lower coupling 2.

[0030] In this embodiment, the boss 11 is in the shape of an equilateral triangle; the groove 21 is in the shape of a regular hexagonal star. That is, the upper coupling 1 has six mounting positions, and the mounting positions can be switched every 60° of rotation of the upper coupling 1.

[0031] The corners of the boss 11 and the corners of the groove 21 are rounded, which provides high safety and impact resistance.

[0032] The upper coupling 1 is fixedly connected to the rotating shaft 31 and exposed below the inner barrel 5; the lower coupling 2 is fixedly connected to the output shaft 41 of the drive mechanism 4, and the lower coupling 2 is located at the bottom of the inner cavity 61; when the inner barrel 5 is installed in the inner cavity 61, the boss 11 of the upper coupling 1 falls into the groove 21 of the lower coupling 2 so that the garbage cutter 3 is connected to the drive mechanism 4 for transmission.

[0033] Specifically, the end of the rotating shaft 31 of the waste cutter 3 is provided with a connecting part 32, which is polygonal. The top of the upper coupling 1 is provided with an upper limit groove 12 for the connecting part 32 to be inserted, and the shape of the upper limit groove 12 corresponds to the connecting part 32. The waste cutter 3 is limited by the cooperation between the polygonal connecting part 32 and the upper limit groove 12, which can prevent the waste cutter 3 from rotating relative to the upper coupling 1.

[0034] In this embodiment, the connecting part 32 is square.

[0035] The connecting part 32 is provided with an upper shaft connecting hole 33, and the boss 11 is provided with an upper connecting hole 13 that communicates with the upper limit groove 12. The upper connecting hole 13 is used to connect with the upper shaft connecting hole 33.

[0036] In this embodiment, the upper shaft connecting hole 33 extends to the rotating shaft part 31, the upper connecting hole 13 is a countersunk hole, and the upper coupling 1 is screwed and fixed to the upper shaft connecting hole 33 by a screw passing through the upper connecting hole 13. The head of the screw is hidden in the upper connecting hole 13 and does not affect the fit between the boss 11 and the groove 21.

[0037] The bottom of the lower coupling 2 is provided with a lower limiting groove 22 for the output shaft 41 of the drive mechanism 4 to be inserted. The side of the output shaft 41 of the drive mechanism 4 is provided with a shaft positioning surface 411. The groove wall of the lower limiting groove 22 is provided with a lower positioning plane 221 parallel to the shaft positioning plane. The lower positioning plane 221 is used for the shaft positioning plane to abut against to prevent the lower coupling 2 from rotating relative to the output shaft 41.

[0038] In this embodiment, shaft positioning surfaces 411 are provided on both sides of the output shaft 41.

[0039] The output shaft 41 of the drive mechanism 4 is provided with a lower shaft connection hole 42 at its end, and the groove 21 is provided with a lower connection hole 23 that communicates with the lower limit groove 22. The lower connection hole 23 is used to connect with the lower shaft connection hole 42.

[0040] In this embodiment, the lower coupling 2 is screwed and fixed to the lower shaft connecting hole 42 by a screw passing through the lower connecting hole 23.

[0041] In this technical solution, both the upper coupling 1 and the lower coupling 2 are fixed by screws and can be disassembled for easy replacement.

[0042] The drive mechanism 4 is a motor.

[0043] The coupling in this technical solution is applied to a waste disposal machine to realize the transmission connection and separation of the waste cutting part 3 and the drive mechanism 4. The upper coupling 1 of the coupling is connected to the lower coupling 2 through the cooperation of the regular polygonal boss 11 and the regular polygonal star-shaped groove 21. It has multiple installation positions. The boss 11 can fall into the groove 21 of the lower coupling 2 when the upper coupling 1 is rotated at a certain angle. The operation is simple and quick, and it is convenient for the installation of the inner bucket 5 of the waste disposal machine.

[0044] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A coupling for connecting a waste cutter and a drive mechanism, the drive mechanism being used to drive the waste cutter to rotate, characterized in that: The coupling includes an upper coupling for fixed connection with the waste cutter and a lower coupling for fixed connection with the output shaft of the drive mechanism. The upper coupling has a boss at the bottom and the lower coupling has a groove at the top. The boss is a regular polygon; the groove is a regular polygonal star; and the number of corners of the groove is twice the number of corners of the boss. The upper coupling is connected to the lower coupling via a boss that falls into a groove. When the boss falls into the groove, the corner of the boss falls into part of the corner of the groove, so that the upper coupling is circumferentially fixed relative to the lower coupling.

2. The coupling according to claim 1, characterized in that: The boss is in the shape of an equilateral triangle; the groove is in the shape of a regular hexagonal star.

3. The coupling according to claim 2, characterized in that: The corners of the boss and the corners of the groove are rounded.

4. The coupling according to any one of claims 1-3, characterized in that: The waste cutting component has a rotating shaft, and the end of the rotating shaft has a connecting part. The connecting part is polygonal. The top of the upper coupling has an upper limit groove for the connecting part to be inserted. The shape of the upper limit groove corresponds to the connecting part.

5. The coupling according to claim 4, characterized in that: The connecting part is provided with an upper shaft connecting hole, and the boss is provided with an upper connecting hole that communicates with the upper limit groove. The upper connecting hole is used to connect with the upper shaft connecting hole.

6. The coupling according to claim 4, characterized in that: The bottom of the lower coupling is provided with a lower limiting groove for the output shaft of the drive mechanism to be inserted. The side of the output shaft of the drive mechanism is provided with a shaft positioning surface. The groove wall of the lower limiting groove is provided with a lower positioning plane parallel to the shaft positioning plane. The lower positioning plane is used for the shaft positioning plane to abut against to prevent the lower coupling from rotating relative to the output shaft.

7. The coupling according to claim 6, characterized in that: The output shaft of the drive mechanism is provided with a lower shaft connection hole at its end, and the groove is provided with a lower connection hole that communicates with the lower limit groove. The lower connection hole is used to connect with the lower shaft connection hole.

8. A waste disposal machine, comprising a body, an inner bucket, a waste cutting component, and a drive mechanism, wherein the body has an inner cavity, the inner bucket is detachably installed within the inner cavity, the waste cutting component is rotatably installed within the inner bucket, and the drive mechanism is fixed to the bottom of the body; characterized in that: It also includes the coupling as described in any one of claims 1-7; The bottom of the inner bucket is provided with a shaft connector, the shaft connector is provided with a shaft hole, and the garbage cutting component is provided with a rotating shaft part, which passes through the shaft hole and can rotate relative to the shaft hole. The upper coupling is fixedly connected to the rotating shaft and exposed below the inner barrel; The lower coupling is fixedly connected to the output shaft of the drive mechanism, and the lower coupling is located at the bottom of the inner cavity; When the inner barrel is installed in the inner cavity, the boss of the upper coupling falls into the groove of the lower coupling to enable the waste cutting component to be connected to the drive mechanism for transmission.

Images