CN212478817U

CN212478817U - Clutch mechanism

Info

Publication number: CN212478817U
Application number: CN202021430952.4U
Authority: CN
Inventors: 杨自然; 曾大庆; 刘光
Original assignee: Nanjing Huamai Technology Co Ltd
Current assignee: Nanjing Huamai Technology Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-02-05
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a clutch mechanism, which comprises a lock core shaft, a connecting rod shaft, a push rod, a transmission nut, a shaft pin, a spring and a fastening screw, wherein the other end of the lock core shaft is a convex shaft of a cylindrical body, a cavity is arranged in the cylindrical body, and the cavity, the shaft pin, the spring and the fastening screw are combined to form a shaft pin structure capable of automatically extending out; a cylindrical cavity is arranged at one end, close to the lock core shaft, of the connecting rod shaft, the cylindrical cavity is matched with a convex shaft of the lock core shaft for use, a circle of groove is arranged on the inner wall of the cylindrical cavity, and a circular hole vertical to the axial direction is formed in the side wall of the groove; a push rod is arranged outside the circular hole running track, and one end of the push rod is connected with the transmission nut. The beneficial effects of the utility model reside in that, use the reliability high, simple structure, low cost.

Description

Clutch mechanism

Technical Field

The utility model relates to a clutch mechanism.

Background

The clutch structure in the prior art is complex, the space for the clutch mechanism to be arranged is limited in some application scenes, and in order to improve the space utilization efficiency, the structure of the clutch mechanism needs to be improved so as to realize the balance between the mechanism function and the space occupation.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, the utility model provides a clutch mechanism.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

a clutch mechanism comprises a lock core shaft, a connecting rod shaft, a push rod, a transmission nut, a shaft pin, a spring and a fastening screw, wherein the other end of the lock core shaft is a convex shaft of a cylindrical body, a cavity is arranged in the cylindrical body, and the cavity, the shaft pin, the spring and the fastening screw are combined to form a shaft pin structure capable of automatically extending out; a cylindrical cavity is arranged at one end, close to the lock core shaft, of the connecting rod shaft, the cylindrical cavity is matched with a convex shaft of the lock core shaft for use, a circle of groove is arranged on the inner wall of the cylindrical cavity, and a circular hole vertical to the axial direction is formed in the side wall of the groove; a push rod is arranged outside the circular hole running track, and one end of the push rod is connected with the transmission nut.

As a preferred scheme, the lock further comprises a bottom shell and an upper cover, wherein one end of the lock core shaft is of a hexagonal head structure, and the hexagonal head structure penetrates through a mounting hole formed in the upper cover and is used for being matched with an external hexagonal mechanical key to unlock; two sections of sealing grooves are arranged in the middle of the lock core shaft, a nitrile sealing ring is arranged in the lock core shaft, and the lock core shaft is matched with the upper cover to play a waterproof role when the lock core shaft is static or rotates; two sections of sealing grooves are formed in the middle of the connecting rod shaft, a nitrile sealing ring is arranged in the sealing grooves, and the connecting rod shaft is matched with a bottom shell structure, so that the connecting rod shaft plays a waterproof role when the connecting rod shaft is static or rotates.

Preferably, the push rod is flexibly connected with the transmission nut.

As a preferred scheme, a motor and a guide rail are arranged on the bottom shell, and the guide rail changes the rotary motion of a motor shaft into the axial linear motion of a transmission nut.

The beneficial effects of the utility model reside in that, the axle about can accurate effectual separation and reunion, use the reliability high, simple structure, low cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1 is a lock core shaft, 2 is a link shaft, 3 is a push rod, 4 is a transmission nut, 5 is a bottom shell, 6 is an upper cover, 7 is a shaft pin, 8 is a spring and 9 is a fastening screw.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in the figures, the clutch mechanism comprises a lock core shaft 1, a connecting rod shaft 2, a push rod 3, a transmission nut 4, a bottom shell 5, an upper cover 6, a shaft pin 7, a spring 8 and a fastening screw 9, wherein one end of the lock core shaft 1 is of an M12 hexagonal head structure and used for being matched with an external hexagonal mechanical key to unlock, and the end can be set into other structural shapes. The other end of the lock core shaft 1 is a convex shaft of a cylindrical body, a cavity is arranged in the cylindrical body, the cavity, the shaft pin 7, the spring 8 and the fastening screw 9 are combined to form a shaft pin structure capable of automatically extending out, namely, the lower end of the shaft pin 7 can extend out of the cavity under the action of no other external force. Two sections of sealing grooves are formed in the middle of the lock core shaft 1, a nitrile sealing ring is arranged in the lock core shaft, and the lock core shaft is matched with an upper cover 6 structure to play a waterproof role when the lock core shaft is static or rotating.

A cylindrical cavity is arranged at one end, close to the lock core shaft 1, of the connecting rod shaft 2, two sections of sealing grooves are formed in the middle of the connecting rod shaft 2, a nitrile sealing ring is arranged in the sealing grooves, and a bottom shell structure is matched, so that the connecting rod shaft plays a waterproof role when the connecting rod shaft is static or rotates; the cylinder cavity is used with the protruding axle cooperation of lock core axle, is provided with the round recess on the cylinder cavity inner wall, and the recess lateral wall has a perpendicular axial round hole, rotates corresponding position when lock core axle 1, and pivot 7 can be popped out by the spring, falls into this round hole to make lock core axle 1 and connecting rod axle 2 linkage.

Set up push rod 3 in the round hole orbit outside, the one end and the drive nut 4 of push rod 3 are connected, receive the motor effect to the round hole motion of connecting rod axle 2 when push rod 3, and pivot 7 receives extrusion back spring 8 deformation and then leads to pivot 7 to break away from the round hole scope, and then realizes that lock core axle 1 and connecting rod axle 2 disassociate, reach the separation and reunion effect. The push rod is flexibly connected with the transmission nut, so that installation and production errors can be offset. The bottom shell is provided with a motor and a guide rail, and the guide rail changes the rotary motion of a motor shaft into the axial linear motion of a transmission nut.

Claims

1. A clutch mechanism is characterized by comprising a lock core shaft, a connecting rod shaft, a push rod, a transmission nut, a shaft pin, a spring and a fastening screw, wherein the other end of the lock core shaft is a convex shaft of a cylindrical body, a cavity is arranged in the cylindrical body, and the cavity, the shaft pin, the spring and the fastening screw are combined to form a shaft pin structure capable of automatically extending out; a cylindrical cavity is arranged at one end, close to the lock core shaft, of the connecting rod shaft, the cylindrical cavity is matched with a convex shaft of the lock core shaft for use, a circle of groove is arranged on the inner wall of the cylindrical cavity, and a circular hole vertical to the axial direction is formed in the side wall of the groove; a push rod is arranged outside the circular hole running track, and one end of the push rod is connected with the transmission nut.

2. The clutch mechanism according to claim 1, further comprising a bottom shell and an upper cover, wherein one end of the lock core shaft is of a hexagonal head structure, and the hexagonal head structure penetrates through a mounting hole formed in the upper cover and is used for being unlocked by matching with an external hexagonal mechanical key; two sections of sealing grooves are arranged in the middle of the lock core shaft, a nitrile sealing ring is arranged in the lock core shaft, and the lock core shaft is matched with the upper cover to play a waterproof role when the lock core shaft is static or rotates; two sections of sealing grooves are formed in the middle of the connecting rod shaft, a nitrile sealing ring is arranged in the sealing grooves, and the connecting rod shaft is matched with a bottom shell structure, so that the connecting rod shaft plays a waterproof role when the connecting rod shaft is static or rotates.

3. The clutch mechanism as claimed in claim 2, wherein the bottom housing is provided with a motor and a guide rail, and the guide rail changes the rotation of the motor shaft into the axial linear motion of the transmission nut.

4. A clutch mechanism according to claim 1, characterised in that the push rod is flexibly connected to the drive nut.