CN220434450U - Back-locking structure of handle lock - Google Patents

Abstract

The utility model discloses a back locking structure of a handle lock, which comprises an inner handle and an outer handle; the inner handle is internally provided with a back-locking driving assembly, the outer handle is internally provided with a back-locking mechanism, the back-locking mechanism comprises a locking assembly and an unlocking assembly, the locking assembly locks the outer handle on an outer handle seat, and the back-locking driving assembly is linked with the unlocking assembly through a linkage assembly; the back-locking driving assembly comprises a driving piece and a back-locking gear, the back-locking gear is in linkage with the linkage assembly, and a tooth part meshed with the back-locking gear is arranged at one end part of the driving piece; the driving piece drives the counter-locking gear to rotate, the unlocking component is driven to be separated from the outer handle through the linkage component, and the locking component locks the outer handle on the outer handle seat; the volume of the door lock is reduced, so that the appearance of the door lock is simple and elegant; meanwhile, the unlocking component can be driven by the linkage component only by poking the driving component to one side, so that the unlocking operation of the door lock is realized, and the unlocking operation mode of the door lock is simplified.

Description

Back-locking structure of handle lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a back locking structure of a handle lock.

Background

The door lock is a common door protection device for preventing illegal intrusion, and generally comprises a lock body arranged in a door plate, an inner handle, an outer handle and a back locking driving piece which are respectively arranged in and outside the door plate;

the door lock back-locking driving piece is a driving piece for driving the locking structure inside the door lock to lock the door handle, and the back-locking driving piece of the existing door lock is usually arranged on the door lock independently of the door handle in a split mode, and occupies a separate space of the door lock, so that the structure is complex, and the appearance of the door lock is influenced; in addition, the existing back-locking driving piece adopts a knob type operation mode, and when in operation, the back-locking knob is pinched and rotated by two fingers; this approach has the problem of inconvenient operation.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a back locking structure of a handle lock.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the back locking structure of the handle lock comprises an inner handle and an outer handle, wherein the inner handle is rotationally arranged on an inner handle seat, the outer handle is rotationally arranged on an outer handle seat, and the inner handle and the outer handle are linked through a square shaft; the inner handle is internally provided with a back-locking driving assembly, the outer handle is internally provided with a back-locking mechanism, the back-locking mechanism comprises a locking assembly and an unlocking assembly, the locking assembly locks the outer handle on an outer handle seat, and the back-locking driving assembly is linked with the unlocking assembly through a linkage assembly;

the back-locking driving assembly comprises a driving piece and a back-locking gear, the back-locking gear is in linkage with the linkage assembly, and a tooth part meshed with the back-locking gear is arranged at one end part of the driving piece;

the driving piece drives the counter-locking gear to rotate, the unlocking component is driven to be separated from the outer handle through the linkage component, and the outer handle is locked on the outer handle seat by the locking component.

The utility model further provides that: the driving piece is arranged on the inner handle in a swinging way through a swinging shaft.

The utility model further provides that: the other end of the driving piece is provided with a poking part, and the poking part penetrates out of a back locking window arranged on the inner side of the inner handle.

The utility model further provides that: the unlocking component comprises a sliding block and an unlocking spring which are arranged on the sliding rod in a sliding manner;

the unlocking spring is sleeved on the sliding rod, one end part of the unlocking spring is propped against the sliding rod, the other end part of the unlocking spring is propped against the sliding block, and the unlocking rod on the end part of the sliding block is driven to be inserted into the lock hole on the outer handle.

The utility model further provides that: the linkage assembly comprises a linkage rod and a back-locking pushing piece which is rotatably arranged in the outer handle, one end part of the linkage rod is connected with the back-locking gear, and the other end part of the linkage rod is connected with the back-locking pushing piece;

the locking driving assembly drives the locking pushing piece to rotate through the linkage rod, and the locking pushing piece reversely pushes the sliding block to slide back to the lock hole, so that the unlocking rod is separated from the lock hole.

The utility model further provides that: the locking counter-pushing piece is arranged below the sliding block, and a counter-pushing inclined surface is obliquely arranged on the end face of the locking counter-pushing piece, facing the sliding block;

and the reverse-locking reverse-pushing piece is rotated, and the reverse-pushing inclined surface extrudes the sliding block back to the lock hole to drive the sliding block to slide back to the lock hole.

The utility model further provides that: the locking assembly comprises a locking spring and a locking pin which are arranged on the outer handle seat;

the locking spring drives one end of the lock pin to extend out of the outer handle seat to be inserted into the lock hole so as to prevent the outer handle from rotating relative to the outer handle seat.

The utility model further provides that: the outer handle seat is provided with a mounting groove, and the locking spring and the locking pin are mounted in the mounting groove from inside to outside.

The utility model has the beneficial effects that: the inside of the inner handle of the door lock is provided with a back-locking driving component, the inside of the outer handle is provided with a locking component and an unlocking component which can lock the outer handle on the outer handle seat, the back-locking driving assembly is linked with the unlocking assembly through the linkage assembly; the back-locking driving assembly comprises a driving piece and a back-locking gear, wherein the back-locking gear is in linkage with the linkage assembly, and the driving piece is meshed with the back-locking gear; when the driving piece is shifted to one side, the driving piece drives the counter-locking gear to rotate, and drives the unlocking component to be separated from the outer handle through the linkage component, the locking component locks the outer handle on the outer handle seat to counter-lock the door lock, so that people cannot unlock the door lock by rotating the outer handle; the back locking driving mechanism and the back locking mechanism of the door lock are respectively arranged in the inner handle and the outer handle, so that the volume of the door lock is effectively reduced, and the appearance of the door lock is more simple and elegant; meanwhile, the unlocking component can be driven by the linkage component only by poking the driving component to one side, so that the unlocking operation of the door lock is realized, and the unlocking operation mode of the door lock is simplified.

Drawings

FIG. 1 is a schematic view of a back-locking structure of a handle lock according to the present utility model;

FIG. 2 is a diagram showing an application of a back locking structure of a handle lock according to the present utility model;

FIG. 3 is a second application diagram of a back lock structure of a handle lock according to the present utility model;

FIG. 4 is an exploded view of the counter lock mechanism of the counter lock structure of the handle lock of the present utility model;

FIG. 5 is a diagram showing the cooperation of the unlocking assembly and the counter-lock pusher of the counter-lock structure of the handle lock according to the present utility model;

FIG. 6 is a view showing the installation of a locking assembly of a counter lock structure of a handle lock of the present utility model in an outer handle base;

FIG. 7 is a schematic view of a driving member of a back-locking mechanism of a handle lock according to the present utility model;

reference numerals illustrate: 1. an inner handle; 11. a counter lock window; 2. an outer handle; 21. an outer handle head; 211. a lock hole; 3. an inner handle base; 4. an outer handle base; 41. a mounting groove; 5. a square shaft; 6. a back-lock drive assembly; 61. a driving member; 611. tooth parts; 612. a toggle part; 613. a swing shaft; 62. a counter-lock gear; 71. a locking assembly; 711. a locking spring; 712. a locking pin; 72. unlocking the assembly; 721. a slide block; 7211. unlocking the rod; 722. a slide bar; 723. an unlocking spring; 8. a linkage assembly; 81. a linkage rod; 82. a back-lock pusher; 821. and (5) reversely pushing the inclined plane.

Detailed Description

The counter lock structure of the handle lock of the present utility model will be described in further detail with reference to fig. 1 to 7.

The back locking structure of the handle lock comprises an inner handle 1 and an outer handle 2, wherein the inner handle 1 is rotatably arranged on an inner handle seat 3, the outer handle 2 is rotatably arranged on an outer handle seat 4, and the inner handle 1 and the outer handle 2 are linked through a square shaft 5; a back-locking driving assembly 6 is arranged in the inner handle 1, a back-locking mechanism is arranged in the outer handle 2, the back-locking mechanism comprises a locking assembly 71 and an unlocking assembly 72 which lock the outer handle 2 on the outer handle seat 4, and the back-locking driving assembly 6 is linked with the unlocking assembly 72 through a linkage assembly 8; the back-locking driving assembly 6 comprises a driving piece 61 and a back-locking gear 62, the back-locking gear 62 is linked with the linkage assembly 8, and a tooth part 611 meshed with the back-locking gear 62 is arranged at one end part of the driving piece 61; the driving member 61 drives the counter-locking gear 62 to rotate, and drives the unlocking assembly 72 to be separated from the outer handle 2 through the linkage assembly 8, and the locking assembly 71 locks the outer handle 2 on the outer handle seat 4.

The driving piece 61 is arranged on the inner handle 1 in a swinging way through a swinging shaft 613, wherein the other end part of the driving piece 61 is provided with a poking part 612, and the poking part 612 penetrates out of a counter lock window 11 arranged on the inner side of the inner handle 1; when the door lock is unlocked or unlocked, the driving piece 61 can swing around the swinging shaft 613 only by using one finger to dial the dial part 612 on the locking window 11 to one side, so that the tooth part 611 at one end part of the driving piece 61 rotates to drive the locking gear 62 to rotate, and the door lock is simpler and more convenient to be unlocked or unlocked; wherein the swing amplitude of the driving piece 61 can be set between 45 degrees and 60 degrees, and the reverse locking gear 62 is driven to rotate by 90 degrees; namely, the driving piece 61 swings at a small angle to realize the door lock back locking and unlocking operation.

When the driving member 61 swings, the driving member 61 drives the counter-locking gear 62 to rotate, and drives the unlocking component 72 to be separated from the outer handle 2 through the linkage component 8, the locking component 71 locks the outer handle 2 on the outer handle seat 4 to counter-lock the door lock, so that people cannot unlock the door lock by rotating the outer handle 2; the back locking driving mechanism and the back locking mechanism of the door lock are respectively arranged in the inner handle 1 and the outer handle 2, so that the volume of the door lock is effectively reduced, and the appearance of the door lock is more simple and elegant; meanwhile, the unlocking component 72 can be driven by the linkage component 8 only by poking the driving piece 61 to one side, so that the unlocking operation of the door lock is realized, and the unlocking operation mode of the door lock is simplified.

For better back locking of the door lock, the outer handle seat 4 is provided with a mounting groove 41, and the locking spring 711 and the locking pin 712 of the locking assembly 71 are mounted in the mounting groove 41 from inside to outside; when the lock pin 712 aligns with the lock hole 211, the lock spring 711 drives one end of the lock pin 712 to extend out of the outer handle seat 4 and insert into the lock hole 211 of the outer handle 2, wherein the lock hole 211 is arranged on the outer handle head 21 to prevent the outer handle 2 from rotating relative to the outer handle seat 4, so as to firmly lock the outer handle 2 on the outer handle seat 4; to realize the back locking of the door lock.

Wherein the unlocking assembly 72 comprises a slide 721 slidably disposed on a slide bar 722 and an unlocking spring 723; the unlocking spring 723 is sleeved on the sliding rod 722, one end part of the unlocking spring 723 is abutted against the sliding rod 722, the other end part of the unlocking spring 723 is abutted against the sliding block 721, the unlocking rod 7211 on the end part of the sliding block 721 is driven to be inserted into the lock hole 211 on the outer handle 2, the lock pin 712 is extruded outwards, the lock pin 712 is separated from the lock hole 211, and the locking of the outer handle seat 4 is retracted, so that the locking of the outer handle 2 is unlocked; the door lock can be unlocked more smoothly.

The linkage assembly 8 comprises a linkage rod 81 and a back-locking pushing piece 82 rotatably arranged in the outer handle 2, one end part of the linkage rod 81 is connected with the back-locking gear 62, and the other end part is connected with the back-locking pushing piece 82; the locking counter-thrust is arranged below the slide 721, and is provided with a counter-thrust inclined surface 821 inclined towards the end surface of the slide 721; the back-lock driving assembly 6 drives the back-lock pushing member 82 to rotate through the linkage rod 81, the back-push inclined surface 821 extrudes the sliding block 721 back to the lock hole 211, and drives the sliding block 721 back to the lock hole 211 to slide, so that the unlocking rod 7211 is separated from the lock hole 211; the lock pin 712 is inserted into the lock hole 211 at one end thereof by the lock spring 711 to lock the outer handle 2 to the handle holder.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (8)

1. The back locking structure of the handle lock comprises an inner handle and an outer handle, wherein the inner handle is rotationally arranged on an inner handle seat, the outer handle is rotationally arranged on an outer handle seat, and the inner handle and the outer handle are linked through a square shaft; the method is characterized in that: the inner handle is internally provided with a back-locking driving assembly, the outer handle is internally provided with a back-locking mechanism, the back-locking mechanism comprises a locking assembly and an unlocking assembly, the locking assembly locks the outer handle on an outer handle seat, and the back-locking driving assembly is linked with the unlocking assembly through a linkage assembly;

the back-locking driving assembly comprises a driving piece and a back-locking gear, the back-locking gear is in linkage with the linkage assembly, and a tooth part meshed with the back-locking gear is arranged at one end part of the driving piece;

the driving piece drives the counter-locking gear to rotate, the unlocking component is driven to be separated from the outer handle through the linkage component, and the outer handle is locked on the outer handle seat by the locking component.

2. The back lock structure of a handle lock according to claim 1, wherein: the driving piece is arranged on the inner handle in a swinging way through a swinging shaft.

3. The back lock structure of a handle lock according to claim 2, wherein: the other end of the driving piece is provided with a poking part, and the poking part penetrates out of a back locking window arranged on the inner side of the inner handle.

4. A counter lock structure of a handle lock according to claim 1, 2 or 3, characterized in that: the unlocking component comprises a sliding block and an unlocking spring which are arranged on the sliding rod in a sliding manner;

the unlocking spring is sleeved on the sliding rod, one end part of the unlocking spring is propped against the sliding rod, the other end part of the unlocking spring is propped against the sliding block, and the unlocking rod on the end part of the sliding block is driven to be inserted into the lock hole on the outer handle.

5. The back lock structure of claim 4, wherein: the linkage assembly comprises a linkage rod and a back-locking pushing piece which is rotatably arranged in the outer handle, one end part of the linkage rod is connected with the back-locking gear, and the other end part of the linkage rod is connected with the back-locking pushing piece;

the locking driving assembly drives the locking pushing piece to rotate through the linkage rod, and the locking pushing piece reversely pushes the sliding block to slide back to the lock hole, so that the unlocking rod is separated from the lock hole.

6. The back lock structure of claim 5, wherein: the back-locking pushing piece is arranged below the sliding block, and a back-pushing inclined plane is obliquely arranged on the back-locking pushing piece towards the end face of the sliding block;

and the reverse locking pushing piece is rotated, the reverse pushing inclined surface extrudes the sliding block back to the lock hole, and the sliding block is driven to slide back to the lock hole.

7. A counter lock structure of a handle lock according to claim 1, 2 or 3, characterized in that: the locking assembly comprises a locking spring and a locking pin which are arranged on the outer handle seat;

the locking spring drives one end of the lock pin to extend out of the outer handle seat to be inserted into the lock hole so as to prevent the outer handle from rotating relative to the outer handle seat.

8. The back lock structure of claim 7, wherein: the outer handle seat is provided with a mounting groove, and the locking spring and the locking pin are mounted in the mounting groove from inside to outside.