CN220285492U - Handle door lock - Google Patents

Abstract

The utility model discloses a handle door lock, which comprises an inner base and an outer base, wherein the inner base and the outer base are respectively provided with an inner handle and an outer handle in a rotating way; the inner handle is provided with a back locking mechanism, the outer handle is provided with a locking mechanism for locking the outer handle on the outer base, and the back locking mechanism is in linkage connection with the locking mechanism through a linkage plate; the back locking mechanism comprises a back locking pushing plate which is arranged in the inner handle in a sliding manner and a back locking rotating piece which is arranged in the inner handle in a rotating manner; one end part of the anti-lock rotating piece is connected with the linkage plate, and the other end part of the anti-lock rotating piece is eccentrically provided with a linkage convex column; the locking pushing plate is provided with a movable groove at one end close to the locking rotating piece, the linkage convex column is arranged in the movable groove, when the locking pushing plate is pushed to slide on the inner handle, the locking pushing plate pulls the locking rotating piece to rotate on the inner handle through the linkage convex column, and the locking rotating piece drives the locking mechanism to lock the outer handle on the outer base through the linkage plate; the back locking operation is more labor-saving.

Description

Handle door lock

Technical Field

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

Background

Door locks are a common door guard against illegal intrusion and generally comprise a lock body, and an inner door handle and an outer door handle mounted inside and outside the door, and a counter-locking mechanism; the door lock back locking mechanism is an inner door lock mechanism arranged for improving indoor privacy, and back locking and unlocking of the door lock are realized by operating the back locking mechanism;

as a chinese patent of publication No. CN216110120U, a rack type counter lock mechanism for door lock is disclosed, comprising an inner door handle and an outer door handle, wherein the inner door handle is rotatably disposed on an inner panel, the outer door handle is rotatably disposed on an outer panel, and the inner door handle and the outer door handle are connected by a square shaft; the door inner handle is provided with a back locking assembly, the door outer handle is provided with a locking assembly, and the back locking assembly is in linkage connection with the locking assembly through a rotating rod; the locking assembly comprises a locking gear frame arranged in the door in a sliding manner and a locking gear connected with the rotating rod, wherein a locking rack is arranged on the inner side wall of the locking gear frame, and the locking gear is arranged in the locking gear frame and meshed with the locking rack in the locking gear frame; when the back locking gear frame is pushed, the back locking gear frame in sliding drives the rotating rod to rotate by driving the back locking gear, so that the locking assembly is driven to limit the outer door handle to rotate; the back locking gear frame and the back locking gear in the back locking assembly of the door lock are driven in a meshing mode, namely when back locking or unlocking operation is carried out, the back locking gear frame is pushed, and tooth parts in the back locking gear frame push the back locking gear to rotate for driving; but through mutual engagement between the counter-lock gear frame and the counter-lock gear, the counter-lock gear frame and the counter-lock gear are mutually locked, so that the door lock counter-lock operation is very laborious, and the problem of inconvenient operation exists.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a handle door lock.

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

the handle door lock comprises an inner base and an outer base, wherein the inner base and the outer base are respectively provided with an inner handle and an outer handle in a rotating mode, and the inner handle and the outer handle are linked through a square shaft; the inner handle is provided with a back locking mechanism, the outer handle is provided with a locking mechanism for locking the outer handle on the outer base, and the back locking mechanism is in linkage connection with the locking mechanism through a linkage plate; the back locking mechanism comprises a back locking pushing plate which is arranged in the inner handle in a sliding manner and a back locking rotating piece which is arranged in the inner handle in a rotating manner;

one end part of the anti-lock rotating piece is connected with the linkage plate, and the other end part of the anti-lock rotating piece is eccentrically provided with a linkage convex column;

the anti-lock pushing plate is provided with a movable groove at one end close to the anti-lock rotating piece, the linkage convex column is arranged in the movable groove, and the anti-lock pushing plate drives the anti-lock rotating piece to rotate by pushing the linkage convex column, so that the locking mechanism locks the outer handle on the outer base.

The utility model further provides that: the movable groove is perpendicular to the sliding direction of the back-locking pushing plate.

The utility model further provides that: the movable groove is internally provided with a backing ring which is matched with the movable groove.

The utility model further provides that: the anti-lock pushing plate is provided with an anti-lock operation part at one end part far away from the anti-lock rotating part, the lower end surface of the inner handle hand holding part is provided with an anti-lock window, and the anti-lock operation part penetrates out of the anti-lock window.

The utility model further provides that: the inner handle is provided with a sliding groove for the back locking pushing plate to slide.

The utility model further provides that: the locking mechanism comprises a square shaft sleeve and a locking column matched with the locking cam, one end part of the square shaft sleeve is fixedly connected with the outer handle, and the other end part of the square shaft sleeve penetrates through the outer base to be connected with the square shaft;

the locking cam is rotatably arranged in Fang Zhoutao, one end part of the locking cam is connected with the linkage plate, and the other end part of the locking cam is connected with the lock cylinder on the external handle;

when the linkage plate or the lock cylinder drives the locking cam to rotate, the locking cam outwards extrudes the locking convex column, so that one end part of the locking convex column passes through the lock hole of the square shaft sleeve and is arranged in the locking groove of the outer base.

The utility model has the beneficial effects that: the locking rotating piece of the handle door lock locking mechanism is eccentrically provided with a linkage convex column, the locking pushing plate is provided with a movable groove matched with the linkage convex column, the linkage convex column is arranged in the movable groove, when the locking pushing plate is pushed to slide on the inner handle, the locking pushing plate can pull the locking rotating piece to rotate on the inner handle through the linkage convex column, and the locking rotating piece can drive the locking mechanism to lock the outer handle on the outer base through the linkage plate, so that the door lock can be locked reversely;

through the cooperation of movable groove and linkage projection, when promoting the back-locking impeller plate, the inside wall in movable groove can extrude the linkage projection, makes the linkage projection slides at the both ends in movable groove for the back-locking operation is laborsaving more, simplifies lock back-locking operation.

Drawings

FIG. 1 is a schematic view of a handle door lock according to the present utility model;

FIG. 2 is a schematic view of a handle lock removal square shaft according to the present utility model;

FIG. 3 is a linkage diagram of a counter lock mechanism and a locking mechanism of a handle door lock of the present utility model;

FIG. 4 is a schematic view of a back-locking pusher plate of a handle door lock according to the present utility model;

FIG. 5 is a schematic view of a reverse rotation member of a handle door lock according to the present utility model;

FIG. 6 is a view showing the engagement of a locking cam and a locking post of a handle door lock according to the present utility model;

FIG. 7 is a schematic view of a locking cam of a handle door lock according to the present utility model;

FIG. 8 is a schematic view of a square sleeve of a handle door lock according to the present utility model;

fig. 9 is a schematic view showing the structure of an outer base of a handle door lock according to the present utility model;

FIG. 10 is a schematic view of a locking mechanism of a handle door lock of the present utility model in an unlocked state;

FIG. 11 is a schematic view of a locking mechanism of a handle door lock of the present utility model in a locked state;

FIG. 12 is a schematic view of the structure of an inner handle of a handle door lock according to the present utility model;

reference numerals illustrate: 1. an inner base; 2. an outer base; 21. a locking groove; 3. an inner handle; 31. a sliding groove; 32. a counter lock window; 4. an outer handle; 5. a counter lock mechanism; 51. locking the rotating piece; 511. a linkage convex column; 52. a back locking pushing plate; 521. a movable groove; 5211. a backing ring; 522. a back-lock operation unit; 6. a locking mechanism; 61. a square shaft sleeve; 611. a lock hole; 62. a locking cam; 63. locking the column; 7. a linkage plate; 8. a square shaft; 9. a lock cylinder.

Detailed Description

A handle door lock according to the present utility model will be described in further detail with reference to fig. 1 to 12.

The handle door lock comprises an inner base 1 and an outer base 2, wherein an inner handle 3 and an outer handle 4 are respectively rotatably arranged on the inner base 1 and the outer base 2, and the inner handle 3 and the outer handle 4 are linked through a square shaft 8; the inner handle 3 is provided with a back locking mechanism 5, the outer handle 4 is provided with a locking mechanism 6 for locking the outer handle 4 on the outer base 2, and the back locking mechanism 5 is in linkage connection with the locking mechanism 6 through a linkage plate 7; the back locking mechanism 5 comprises a back locking pushing plate 52 which is arranged in the inner handle 3 in a sliding way and a back locking rotating piece 51 which is arranged in the inner handle 3 in a rotating way; one end of the anti-lock rotating member 51 is connected with the linkage plate 7, and the other end is eccentrically provided with a linkage convex column 511; the locking pushing plate 52 is provided with a movable groove 521 at one end close to the locking rotating member 51, the linkage convex column 511 is arranged in the movable groove 521, when the locking pushing plate 52 is pushed to slide on the inner handle 3, the locking pushing plate 52 pulls the locking rotating member 51 to rotate on the inner handle 3 through the linkage convex column 511, and the locking rotating member 51 drives the locking mechanism 6 through the linkage plate 7 to lock the outer handle 4 on the outer base 2, so that the locking of the door lock is realized; through the cooperation of the movable groove 521 and the linkage convex column 511, when the back locking pushing plate 52 is pushed, the inner side wall of the movable groove 521 can squeeze the linkage convex column 511, so that the linkage convex column 511 slides at two ends of the movable groove 521, the back locking operation is more labor-saving, and the back locking operation of the door lock is simplified.

Wherein the movable groove 521 is perpendicular to the sliding direction of the anti-lock pushing plate 52, and a backing ring 5211 adapted to the movable groove 521 is disposed in the movable groove 521; the friction force between the linkage convex column 511 and the movable groove 521 is effectively reduced, so that the back locking operation of the door lock is more labor-saving and convenient.

The inner handle 3 is provided with a sliding groove 31 for sliding a back-locking pushing plate 52, one end part of the back-locking pushing plate 52, which is far away from the back-locking rotating piece 51, is provided with a back-locking operation part 522, the lower end surface of the handle part of the inner handle 3 is provided with a back-locking window 32, and the back-locking operation part 522 penetrates out of the back-locking window 32; when the door lock is unlocked or locked, the locking pushing plate 52 can be pushed only by holding the holding part of the inner handle 3 by a single handle and lightly poking the locking operation part 522 on the locking window 32 by fingers, so that the locking and unlocking operations of the door lock are more convenient.

The locking mechanism 6 comprises a square shaft sleeve 61 and a locking post 63, wherein the locking cam 62 is matched with the locking cam 62, one end part of the square shaft sleeve 61 is fixedly connected with the outer handle 4, and the other end part passes through the outer base 2 to be connected with the square shaft 8; the locking cam 62 is rotatably arranged in the Fang Zhoutao 61, one end part of the locking cam 62 is connected with the linkage plate 7, and the other end part is connected with the lock cylinder 9 on the outer handle 4; when the interlocking plate 7 is driven by operating the counter-locking mechanism 5 or the lock cylinder 9 is driven by a key to rotate so as to drive the locking cam 62 to rotate, the locking cam 62 presses the locking convex column outwards, so that one end part of the locking convex column passes through the locking hole 611 of the square shaft sleeve 61 and is placed in the locking groove 21 of the outer base 2; the outer handle 4 is locked on the outer base 2 and cannot rotate relative to the outer base 2; thus, the door opening operation cannot be performed; at the same time, the inner handle 3 is connected with the outer handle 4 through the square shaft 8, and the inner handle 3 is also locked.

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 (6)

1. The handle door lock comprises an inner base and an outer base, wherein the inner base and the outer base are respectively provided with an inner handle and an outer handle in a rotating mode, and the inner handle and the outer handle are linked through a square shaft; the inner handle is provided with a back locking mechanism, the outer handle is provided with a locking mechanism for locking the outer handle on the outer base, and the back locking mechanism is in linkage connection with the locking mechanism through a linkage plate; the method is characterized in that: the back locking mechanism comprises a back locking pushing plate which is arranged in the inner handle in a sliding manner and a back locking rotating piece which is arranged in the inner handle in a rotating manner;

one end part of the anti-lock rotating piece is connected with the linkage plate, and the other end part of the anti-lock rotating piece is eccentrically provided with a linkage convex column;

the anti-lock pushing plate is provided with a movable groove at one end close to the anti-lock rotating piece, the linkage convex column is arranged in the movable groove, and the anti-lock pushing plate drives the anti-lock rotating piece to rotate by pushing the linkage convex column, so that the locking mechanism locks the outer handle on the outer base.

2. The handle door lock according to claim 1, wherein: the movable groove is perpendicular to the sliding direction of the back-locking pushing plate.

3. The handle door lock according to claim 2, wherein: the movable groove is internally provided with a backing ring which is matched with the movable groove.

4. A handle door lock according to claim 1, 2 or 3, wherein: the anti-lock pushing plate is provided with an anti-lock operation part at one end part far away from the anti-lock rotating part, the lower end surface of the inner handle hand holding part is provided with an anti-lock window, and the anti-lock operation part penetrates out of the anti-lock window.

5. The handle door lock according to claim 4, wherein: the inner handle is provided with a sliding groove for the back locking pushing plate to slide.

6. The handle door lock according to claim 5, wherein: the locking mechanism comprises a square shaft sleeve and a locking column matched with the locking cam, one end part of the square shaft sleeve is fixedly connected with the outer handle, and the other end part of the square shaft sleeve penetrates through the outer base to be connected with the square shaft;

the locking cam is rotatably arranged in Fang Zhoutao, one end part of the locking cam is connected with the linkage plate, and the other end part of the locking cam is connected with the lock cylinder on the external handle;

when the linkage plate or the lock cylinder drives the locking cam to rotate, the locking cam outwards extrudes the locking convex column, so that one end part of the locking convex column passes through the lock hole of the square shaft sleeve and is arranged in the locking groove of the outer base.