CN211818681U

CN211818681U - One-way clutch mechanism of split lock

Info

Publication number: CN211818681U
Application number: CN202020280935.0U
Authority: CN
Inventors: 唐志雄
Original assignee: Qingtian Keli Intelligent Hardware Co ltd
Current assignee: Jiangxi Keli Metal Products Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-30
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a split lock one-way clutch mechanism, which comprises a front handle component, a rear handle component and a square shaft, and also comprises a one-way clutch mechanism for controlling the square shaft to rotate in one way, wherein the one-way clutch mechanism comprises a reversing cam capable of rotating in positive and negative directions, two pawls symmetrically arranged and a ratchet matched with the pawls, a connecting ring is arranged on the front handle component, the ratchet is fixedly connected with one end of the square shaft and inserted into the connecting ring, the two pawls can be arranged on the inner wall of the connecting ring in a swinging way, the swinging end of the pawls elastically supports against the ratchet arrangement, the reversing cam is arranged between the front handle component and the ratchet and can rotate relative to the pawls, under the action of the reversing cam, the pawl on one side is matched with the ratchet in a propping way and the pawl on the other side is matched with the ratchet in a reversing way, so as to realize the one-way drive of the, simple structure and high safety.

Description

One-way clutch mechanism of split lock

Technical Field

The utility model relates to a components of a whole that can function independently lock technical field, more specifically says that it relates to a components of a whole that can function independently lock one-way clutch mechanism.

Background

The clutch mechanism is an important part in the split lock, the handle assembly and the lock body are connected through the clutch mechanism, the handle is rotated to perform the rapid locking operation of the door lock, a key is not needed, the operation is rapid and convenient, and the clutch mechanism is widely applied to locks. The existing clutch mechanism of the intelligent lock has the defects that fingerprints need to be recorded when the front handle assembly is unlocked or locked, so that the front handle assembly is inconvenient to enter and exit in the using process; and the handle drives the clutch mechanism to rotate and lock along one direction, and the handle can not be rotated in the opposite direction under normal conditions, but when the handle is damaged by brute force and rotates in the opposite direction in a violent mode, the clutch device can be driven to rotate to realize unlocking, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art existence, the utility model provides a one-way clutch mechanism of components of a whole that can function independently lock fast has, simple structure, the high effect of security.

In order to achieve the above purpose, the utility model provides a following technical scheme: the ratchet wheel assembly comprises a front handle assembly, a rear handle assembly, a square shaft positioned between the front handle assembly and the rear handle assembly, and a one-way clutch mechanism for controlling the square shaft to rotate in a one-way mode, wherein the one-way clutch mechanism comprises a ratchet wheel, a reversing cam arranged at the front end of the ratchet wheel and two pawls symmetrically arranged on two sides of the ratchet wheel and the reversing cam, a connecting ring is arranged on one side end face of the front handle assembly, the ratchet wheel is fixedly connected to one end of the square shaft and inserted into the connecting ring, the two pawls can be arranged on the inner wall of the connecting ring in a swinging mode, the swinging ends of the two pawls can elastically abut against the ratchet wheel, the reversing cam can rotate in a positive and negative mode relative to the pawls, the periphery of the reversing cam comprises an arc abutting surface with the same diameter as the outer diameter of the ratchet wheel and an invalid surface separated from the, the pawl on the other side elastically abuts against the abutting surface and is reversely meshed with the ratchet wheel after the reversing cam rotates reversely.

By adopting the technical scheme, when the split lock is installed, the pawl on one side is meshed with the ratchet wheel, the pawl on the other side is ejected out by the reversing cam, so that the pawl is separated from the ratchet wheel, the front handle assembly is rotated, the connecting ring and the pawl rotate together, at the moment, the pawl meshed with the ratchet wheel pushes the ratchet wheel to rotate in a single direction, the locking is realized, the operation is convenient and fast, if the front handle assembly rotates in the reverse direction, the ratchet wheel and the pawl slide relatively, the unlocking cannot be realized, and the safety of the split lock is improved; after the balance wheel rotates reversely, the reversing cam rotates reversely along with the balance wheel, the meshing states of the two pawls and the ratchet wheel are exchanged, the square shaft rotates reversely and unidirectionally, at the moment, the square shaft rotates the front handle assembly to realize unlocking, if the front handle assembly rotates reversely, the ratchet wheel and the pawls slide relatively, locking cannot be realized, and misoperation is avoided.

The utility model discloses further set up to: the inner side wall of the connecting ring is provided with a groove, and the pawl can be inserted in the groove in a swinging mode.

By adopting the technical scheme, after the pawl is pushed by the reversing cam and separated from the ratchet wheel, the pawl can be pushed into the groove by the reversing cam without interfering with the ratchet wheel, the root of the pawl is wrapped by the groove, the pawl can directly be inserted into the groove and then correspondingly swing, the structure is simple, the groove and the connecting ring are integrally machined, and the manufacture is convenient.

The utility model discloses further set up to: and a connecting rod is arranged on one end face of the reversing cam, one end of the connecting rod penetrates into the front handle, and a balance wheel is arranged in a linkage manner.

By adopting the technical scheme, the balance wheel is arranged on the rear cover of the front handle assembly and can be driven by the motor in the front handle assembly to swing forwards and backwards, the connecting rod and the balance wheel are arranged in a linkage manner, and when the balance wheel swings, the reversing cam can be driven to rotate forwards and backwards together, so that the switching between the locking state and the unlocking state of the split lock is realized.

The utility model discloses further set up to: one side of the pawl, which is far away from the ratchet wheel, is provided with a spring groove for placing a spring, and the side wall of the connecting ring is provided with a through hole communicated to the spring groove.

By adopting the technical scheme, the spring is put in through the through hole and is propped against the spring groove of the pawl, so that the spring is elastically propped against the reversing cam or the ratchet wheel.

The utility model discloses further set up to: and a baffle is arranged at one end of the ratchet wheel close to the square shaft, and the diameter of the baffle is the same as that of the port of the connecting ring.

Through adopting above-mentioned technical scheme, after the recess is gone into to the pawl cartridge, insert the connecting ring with the ratchet in, make pawl and ratchet mutually support, the baffle can be placed the pawl and can not follow the interior roll-off of recess at the rotation in-process, guarantees one-way clutch's stability in use.

To sum up, the utility model discloses following beneficial effect has:

1. when a user goes out to close the door and locks the door, the user can directly rotate the front handle to lock the door lock without inputting fingerprints, and the door lock is convenient to use;

2. when the door needs to be opened, after the fingerprint is input, the rotating handle can be unlocked, and the rotating handle can idle when the door is reversed, so that the misoperation of a user is avoided, and the fingerprint needs to be input for opening for the second time due to the wrong steering of the front handle;

3. through ratchet and unilateral pawl meshing, realize one-way rotatable, when the lock locked state of lock, the lock can only be rotated in the idle running and the unable lock of opening of rotating in the opposite direction, prevents that the lock from being opened by violence reversal, improves the security.

Drawings

FIG. 1 is a schematic view of the overall structure of the split lock of the present embodiment;

FIG. 2 is an exploded view of the one-way clutch mechanism of the present embodiment;

FIG. 3 is a schematic structural view of a one-way clutch mechanism according to the present embodiment;

FIG. 4 is a first schematic view of the clutch mechanism of the present embodiment showing the engagement of the single-sided pawl and the ratchet;

FIG. 5 is a second schematic view of the clutch mechanism of the present embodiment showing the engagement between the single-sided pawl and the ratchet;

fig. 6 is a schematic view of the reversing cam of the present embodiment.

Reference numerals: 1. a front handle assembly; 2. a rear handle assembly; 3. a square shaft; 4. a reversing cam; 401. a connecting rod; 402. an abutting surface; 403. an invalid face; 5. a pawl; 501. a spring slot; 6. a ratchet wheel; 7. a connecting ring; 701. a groove; 702. a through hole; 8. a balance wheel; 9. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a one-way clutch mechanism of a split lock, as shown in fig. 1-6, which comprises a front handle assembly 1, a rear handle assembly 2, a square shaft 3 arranged between the front handle assembly 1 and the rear handle assembly 2, and a one-way clutch mechanism for controlling the square shaft 3 to rotate in one direction, wherein the one-way clutch mechanism comprises a reversing cam 4 capable of rotating in the forward direction and the reverse direction, two pawls 5 symmetrically arranged, and ratchet wheels 6 matched with the pawls 5, a connecting ring 7 is arranged on the end surface of one side of the front handle assembly 1, a groove 701 is arranged on the inner side wall of the connecting ring 7, the pawls 5 are inserted in the groove 701 in a swinging manner, the ratchet wheels 6 are fixedly connected to one end of the square shaft 3 and inserted in the connecting ring 7, a baffle 9 is arranged at one end of the ratchet wheels 6 close to the square shaft 3, the diameter of the baffle 9 is the same as that of the connecting, the swing end of the pawl 5 elastically abuts against the ratchet wheel 6, a spring groove 501 for placing a spring is formed in one side, away from the ratchet wheel 6, of the pawl 5, a through hole 702 communicated with the spring groove 501 is formed in the side wall of the connecting ring 7, the reversing cam 4 is located between the front handle assembly 1 and the ratchet wheel 6 and can be rotatably arranged relative to the pawl 5, a connecting rod 401 is arranged on one end face of the reversing cam 4, one end of the connecting rod 401 penetrates into the front handle and is provided with a balance wheel 8 in a linkage mode, the reversing cam 4 comprises an abutting surface 402 for separating the pawl 5 from the ratchet wheel 6 and an invalid surface 403 separated from the pawl 5, the pawl 5 on one side abuts against the ratchet wheel 6 under the action of the reversing cam 4, and the pawl 5 on the other side is in reversing fit with the ratchet wheel 6 after the reversing cam 4 rotates reversely, so that.

When the split lock is installed, the pawl 5 on one side opposite to the invalid surface 403 of the reversing cam 4 is meshed with the ratchet wheel 6 under the elastic action of a spring (not shown in the figure), the pawl 5 on the other side is ejected out by the abutting surface 402 of the reversing cam 4 to be separated from the ratchet wheel 6, the front handle assembly 1 is rotated, the connecting ring 7 and the pawl 5 rotate together, at the moment, the pawl 5 on one side meshed with the ratchet wheel 6 pushes the ratchet wheel 6 to rotate in a single direction, locking is achieved, operation is convenient and fast, if the front handle assembly 1 rotates in a reverse direction, the ratchet wheel 6 and the pawl 5 slide relatively, unlocking cannot be achieved, and the safety of the split lock is improved; after the balance wheel 8 rotates reversely, the reversing cam 4 rotates along with the balance wheel 8, so that the meshing states of the two pawls 5 and the ratchet wheel 6 are exchanged, the square shaft 3 rotates reversely and unidirectionally, at the moment, the square shaft 3 rotates the front handle assembly 1 to realize unlocking, and if the front handle assembly 1 rotates reversely, the ratchet wheel 6 and the pawls 5 slide relatively, locking cannot be realized, and misoperation is avoided.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a components of a whole that can function independently lock one-way clutch mechanism, includes preceding handle subassembly (1), back handle subassembly (2) and is located square shaft (3) between the two, square shaft (3) set up its characterized in that with back handle subassembly (2) linkage: the handle assembly is characterized by further comprising a one-way clutch mechanism used for controlling the square shaft (3) to rotate in a one-way mode, the one-way clutch mechanism comprises a ratchet wheel (6), a reversing cam (4) arranged at the front end of the ratchet wheel (6) and two pawls (5) which are arranged on two sides of the ratchet wheel (6) and the reversing cam (4) in a symmetrical mode, a connecting ring (7) is arranged on one side end face of the front handle assembly (1), the ratchet wheel (6) is fixedly connected to one end of the square shaft (3) and is inserted into the connecting ring (7), the two pawls (5) can be arranged on the inner wall of the connecting ring (7) in a swinging mode, the swinging end of the two pawls can elastically abut against the ratchet wheel (6), the reversing cam (4) can rotate in a positive and negative mode relative to the pawls (5), the periphery of the reversing cam (4) comprises an arc-shaped abutting face (402) with the same diameter size, the pawl (5) on one side is opposite to the invalid surface (403) and is meshed with the ratchet wheel (6) in a one-way mode, and the pawl (5) on the other side is elastically abutted against the abutting surface (402) and is meshed with the ratchet wheel (6) in a reversing mode after the reversing cam (4) rotates reversely.

2. The split lock one-way clutch mechanism according to claim 1, wherein: a groove (701) is formed in the inner side wall of the connecting ring (7), and the pawl (5) can be inserted into the groove (701) in a swinging mode.

3. The split lock one-way clutch mechanism according to claim 2, wherein: and a connecting rod (401) is arranged on one end face of the reversing cam (4), one end of the connecting rod (401) penetrates into the front handle and is provided with a balance wheel (8) in a linkage manner.

4. The split lock one-way clutch mechanism according to claim 3, wherein: and a spring groove (501) for placing a spring is formed in one side of the pawl (5) departing from the ratchet wheel (6).

5. The split lock one-way clutch mechanism according to claim 4, wherein: the side wall of the connecting ring (7) is provided with a through hole (702) communicated to the spring groove (501).

6. The split lock one-way clutch mechanism according to claim 5, wherein: one end of the ratchet wheel (6) close to the square shaft (3) is provided with a baffle (9), and the diameter of the baffle (9) is the same as that of the port of the connecting ring (7).