CN219691292U

CN219691292U - Door lock structure

Info

Publication number: CN219691292U
Application number: CN202321161895.8U
Authority: CN
Inventors: 张永彬
Original assignee: Shanghai Shanmai Electronic Technology Development Co ltd
Current assignee: Shanghai Shanmai Electronic Technology Development Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-09-15
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a door lock structure which comprises a lock shell, a lock tongue, a driving assembly, a limiting piece and a linkage assembly. A cavity is formed in the lock shell, and a lock tongue channel is arranged on the lock shell; the spring bolt is arranged in the cavity and partially extends into the spring bolt channel, and a first elastic piece is arranged between the spring bolt and the cavity wall of the cavity; the driving component is arranged in the cavity, acts on the lock tongue and drives the lock tongue to move so as to perform locking operation; the limiting piece is rotatably arranged in the cavity through the second elastic piece, and is provided with a first state for locking and limiting the lock tongue when the lock tongue is positioned at the locking position, and can keep the first state under the action of the second elastic piece, and a second state for releasing the limit of the lock tongue under the stress state; the linkage assembly is arranged in the cavity, is linked with the limiting piece and the driving assembly, and can apply force to the limiting piece under the action of the driving assembly, so that the limiting piece is converted into a second state from a first state. The door lock structure can quickly realize locking and unlocking.

Description

Door lock structure

Technical Field

The utility model relates to the technical field of household hardware, in particular to a door lock structure.

Background

The door lock is a hardware installed on the door to keep the space privacy, the basic structure of the door lock comprises a lock tongue which can stretch and retract under the action of external force and is matched with a buckling box installed on the door frame, and the door can be prevented from being opened by accidents such as wind blowing and the like. The door lock in the prior art has the problems of complex locking and unlocking structure, long waiting time and the like, and the driving motor needs to act on the lock tongue all the time in the existing door lock structure, so that the service life of the driving motor is greatly shortened.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a door lock structure which is simple in structure and can be used for rapidly locking and unlocking.

In order to achieve the above purpose, the utility model provides a door lock structure, which comprises a lock shell, a lock tongue, a driving component, a limiting piece and a linkage component.

A cavity is formed in the lock shell, a lock tongue channel is arranged on the lock shell, and the lock tongue channel is communicated with the cavity; the lock tongue is arranged in the cavity and partially extends into the lock tongue channel, and a first elastic piece is arranged between the lock tongue and the cavity wall of the cavity; the driving component is arranged in the cavity, acts on the lock tongue and drives the lock tongue to move so as to perform locking operation; the limiting piece is rotatably arranged in the cavity through a second elastic piece, the limiting piece is provided with a first state for locking and limiting the lock tongue when the lock tongue is positioned at the locking position, the first state can be kept under the action of the second elastic piece, and the limiting piece is provided with a second state for releasing the limit of the lock tongue under the stress state; the linkage assembly is arranged in the cavity, and is in linkage with the limiting piece and the driving assembly, and can apply force to the limiting piece under the action of the driving assembly, so that the limiting piece is converted into the second state from the first state.

In one or more embodiments, the second elastic member is a torsion spring that always provides a torsion force that transitions the limiter from the second state to the first state.

In one or more embodiments, the limiting member has a first limiting portion, and the first limiting portion is in a hook-shaped arrangement; when the limiting piece is in a first state, the top end of the lock tongue is lower than the first limiting part of the limiting piece, and the first limiting part abuts against the top end of the lock tongue.

In one or more embodiments, the lock tongue includes a lock tongue body and a second limiting portion formed at the top end of the lock tongue body, the radial dimension of the second limiting portion is greater than that of the lock tongue body, and the first limiting portion abuts against the upper portion of the second limiting portion so as to limit the lock tongue.

In one or more embodiments, the stop member has a first abutment; and a third limiting part is formed on the chamber wall of the lock shell and is matched with the first supporting part so that the limiting part keeps the first state.

In one or more embodiments, the stop member has a second abutment; the linkage assembly is matched with the second abutting part to drive the limiting piece to be converted from the first state to the second state.

In one or more embodiments, the drive assembly includes a drive rod having a third abutment; the linkage assembly comprises a first trigger rod and a second trigger rod, the first trigger rod is rotatably arranged in the cavity and acts on the second trigger rod, the first trigger rod is matched with the third supporting part, and the first trigger rod rotates and drives the second trigger rod to move along the axis direction of the lock tongue under the action of the third supporting part.

In one or more embodiments, a third elastic member is disposed between the second trigger lever and the chamber wall of the lock housing, the third elastic member being configured to be in a compressed state when the first trigger lever drives the second trigger lever to move.

In one or more embodiments, the driving rod is formed with a groove along an axial direction thereof, the inner wall of the groove close to one side of the lock tongue forms the third abutting part, and one end of the first triggering rod is positioned in the groove.

In one or more embodiments, the driving assembly further comprises a driving motor and a driving screw, wherein the driving motor is fixed in the cavity, the driving screw is in threaded connection with the driving rod, and the driving screw rotates to drive the driving rod to move so as to drive the lock tongue to move.

Compared with the prior art, the door lock structure provided by the utility model has the advantages that through the arrangement of the limiting piece, the second elastic piece and the linkage assembly and the cooperation of the driving assembly, locking and unlocking can be realized rapidly, long-time waiting is not needed, and the door lock structure is simple and convenient to assemble.

Drawings

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

FIG. 2 is an internal view of a door lock structure according to an embodiment of the present utility model;

fig. 3 is a detailed view of a stopper in a door lock structure according to an embodiment of the present utility model

FIG. 4 is a detail view of the drive rod in the construction of a door lock according to one embodiment of the present utility model;

FIG. 5 is a detail view of a latch bolt in a door lock construction according to an embodiment of the present utility model;

fig. 6 is a detailed view of a linkage assembly in a door lock structure according to an embodiment of the present utility model.

Detailed Description

The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a door lock structure including a lock case 10, a driving assembly 20, a locking bolt 30, a first elastic member 40, a limiting member 50, a linkage assembly 60, and a second elastic member 70 (shown in fig. 6). The driving assembly 20, the lock tongue 30, the first elastic member 40, the limiting member 50, the linkage assembly 60 and the second elastic member 70 are disposed in the lock case 10, and the first elastic member 40 is disposed between the lock tongue 30 and the lock case 10. Part of the components of the drive assembly 20 move up and down within the lock housing 10 to push the locking bolt 30 to lock or the linkage assembly 60 to unlock. The limiting member 50 acts on the lock tongue 30, and cooperates with the driving assembly 20, the linkage assembly 60, the second elastic member 70 and the first elastic member 40 to lock or unlock the door lock. The linkage assembly 60 is linked with the limiting member 50 and the driving assembly 20, and can apply force to the limiting member 50 under the action of the driving assembly 20, so that the locking bolt 30 is unlocked. The second elastic member 70 acts on the stopper 50 to maintain the stopper 50 in the locked state.

The lock case 10 is provided in a substantially cylindrical structure, and may be provided in a rectangular parallelepiped shape or the like in other embodiments, which is not limited in the present utility model. The lock shell 10 is formed by splicing and installing two semi-cylindrical shells, and an end cover can be added above and/or below the semi-cylindrical shells for convenient disassembly and maintenance so as to further limit the semi-cylindrical shells; a chamber and a lock tongue channel 12 are formed in the lock shell 10, and the lock tongue channel 12 is communicated with the chamber. In this embodiment, the chamber sequentially includes a mounting cavity 111 at an upper portion, a connecting channel 112 at a middle portion, and a tongue cavity 113 at a lower portion in an axial direction of the lock case, the connecting channel 112 communicates the mounting cavity 111 with the tongue cavity 113, and the other end of the tongue cavity 113 communicates with the tongue channel 12 penetrating the lock case 10. The chamber further includes a receiving cavity 114 for receiving the linkage assembly 60, the limiting member 50, and the second elastic member 70, the receiving cavity 114 being located at a side of the tongue cavity 113 and communicating the connecting channel 112 and the tongue cavity 113.

The drive assembly 20 is disposed within the mounting cavity 111 and extends partially into the connecting channel 112 and tongue cavity 113. The drive assembly 20 includes a drive motor 21, a drive screw 22, and a drive rod 23, the drive motor 21 being secured within the mounting cavity 111, the drive rod 23 being movably disposed within the connecting channel 112 and extending into the tongue cavity 113. One end of the driving screw 22 is connected with the driving motor 21, the other end of the driving screw is in threaded connection with the driving rod 23, and the driving screw 22 rotates to drive the driving rod 23 to move along the connecting channel 112 and the tongue cavity 113 so as to drive the tongue 30 to move, and locking operation is performed.

Referring to fig. 2, 3 and 6, the limiting member 50, the linkage assembly 60 and the second elastic member 70 are disposed in the accommodating cavity 114. The limiting member 50 is rotatably disposed at a communication position between the accommodating cavity 114 and the tongue cavity 113 through the second elastic member 70, and a portion of the limiting member 50 extends into the tongue cavity 113 to act on the latch 30. The limiting member 50 has a first state of locking and limiting the locking bolt 30 when the locking bolt 30 is located at the locking position, and can maintain the first state under the action of the second elastic member 70, and the limiting member 50 has a second state of releasing the limitation of the locking bolt 30 under the stress state. The second elastic member 70 is a torsion spring, one end of which is fixed to the limiting member 50, and the other end of which is fixed to the chamber wall of the accommodating chamber 114. The torsion spring always provides a torsion force that transitions the limiter 50 from the second state to the first state.

The stopper 50 is provided with a first stopper portion 51, a first abutting portion 52, and a second abutting portion 53 in this order along the rotation direction (the rotation direction during locking). When the limiting member 50 is in the first state, the top end of the locking bolt 30 is lower than the first limiting portion 51 of the limiting member 50, and the first limiting portion 51 of the limiting member 50 abuts against the top end of the locking bolt 30 to lock and limit the locking bolt 30. The first abutting portion 52 is disposed opposite to the first limiting portion 51. The chamber wall of the accommodating chamber 114 of the lock case 10 is formed with a third stopper 80. Preferably, the second limiting portion 80 is disposed in a cylindrical shape, extends in a direction perpendicular to the locking direction of the locking bolt 30, and is located in front of the first abutting portion 52 in the locking direction of the limiting member 50. The third limiting portion 80 cooperates with the first supporting portion 52 to maintain the limiting member 50 in the first state. For example, when the first limiting portion 51 of the limiting member 50 abuts against the top end of the lock tongue 30 to limit the lock tongue, the third limiting portion 80 also abuts against the first abutting portion 52, so as to prevent the limiting member 50 from continuously pressing the lock tongue 30 under the torsion action of the second elastic member 70; meanwhile, after the limiting member 50 is pushed to rotate by the linkage assembly 60 to unlock the lock tongue 30, the linkage assembly 60 removes the force acting on the limiting member 50, and the limiting member 50 is reset to the first state under the torsion action of the second elastic member 70, at this time, the third limiting portion 80 also just abuts against the first abutting portion 52, so that the limiting member 50 is prevented from continuing to rotate under the torsion action of the second elastic member 70, and the next time the lock of the lock tongue 30 fails. The second supporting portion 53 has a supporting surface, and the second supporting portion 53 cooperates with the linkage assembly 60 to drive the limiting member 50 to change from the first state to the second state.

In order to prevent the stopper 50 in the second state from continuously rotating in the locking direction due to the torsion force of the second elastic member 70 when the linkage assembly removes the external force, the door lock structure of the present utility model maintains the stopper 50 in the first state due to the torsion force of the second elastic member 70 by providing the third stopper 80 and the first supporting portion 52.

Referring to fig. 4, the driving rod 23 is provided in a substantially cylindrical shape, and a groove bar 231 is formed on the driving rod 23 in an axial direction thereof, the groove bar 231 being for receiving a part of the components of the linkage assembly 60. The inner wall of the side of the slot 231, which is close to the lock tongue 30, forms a third supporting part, and the third supporting part can drive part of the components of the linkage assembly 60 to move in the process of moving up the driving rod 23, so that the linkage assembly 60 acts on the limiting piece 50 to unlock the door lock.

In other embodiments, the driving rod 23 may directly form a protruding portion to form the third abutting portion, where the protruding portion is configured such that, when the driving rod 23 moves up, the protruding portion can drive a part of members of the linkage assembly 60 to move, so that the linkage assembly 60 acts on the limiting member 50 to unlock the door lock.

Referring to fig. 2 and 5, the latch 30 is disposed in the latch cavity 113 and partially extends into the latch channel 12, and the latch channel 12 can limit the latch 30 in the radial direction, so that the latch 30 can be locked or unlocked accurately without jamming. The bolt 30 is also substantially cylindrical, and the bolt 30 includes a bolt body 31 and a second limiting portion 32 formed at the top end of the bolt body 31, where the radial minimum cross-sectional area of the second limiting portion 32 is greater than the radial cross-sectional area of the bolt body 31. Preferably, the axial cross-section of the tongue 30 is T-shaped. A first elastic member 40 is disposed between the second limiting portion 32 of the locking bolt 30 and the wall of the tongue cavity at the end of the locking bolt channel 12, and the first elastic member 40 is a spring. When locking, the first limiting part 51 of the limiting part 50 abuts against the upper part of the second limiting part 32 of the lock tongue 30 to lock and limit the lock tongue 30, and at this time, the first elastic part 40 is in a compressed state; when unlocking, the linkage assembly 60 acts on the limiting piece 50 to rotate to the second state, and the locking of the lock tongue 30 is released, at this time, the first elastic piece 40 assists the lock tongue 30 to rebound and reset to unlock.

Referring to fig. 6, the linkage assembly 60 includes a first trigger lever 61, a second trigger lever 62, and a third elastic member 63. The first trigger rod 61 is rotatably arranged in the accommodating cavity 114 and acts on the second trigger rod 62, the second trigger rod 62 is movably arranged in the accommodating cavity 114 along the axial direction of the lock shell 10 and positioned below the first trigger rod 61, and a third elastic piece 63 is arranged between the second trigger rod 62 and the inner wall of the accommodating cavity 114. The first trigger lever 61 has a first end and a second end disposed opposite each other, wherein the first end is positioned within the slot 231 of the locking bolt 30 and the second end is positioned above the second trigger lever 62. The first trigger lever 61 is rotated by the latch 30, and the second end thereof presses the second trigger lever 62, driving the second trigger lever 62 to move in the axial direction of the latch 30, and compressing the third elastic member 63. Preferably, the third elastic member 63 is a spring. The other end of the second trigger rod 62 is located above the second abutting portion 53 of the limiting member 50, and moves under the action of the first trigger rod 61 to abut against the abutting surface of the second abutting portion 53 to drive the limiting member 50 to rotate.

When the driving rod 23 is locked, the driving rod 23 moves down to the first position, the first elastic member 40 is compressed, and during this process, one end of the first triggering rod 61 moves in the slot 231 of the driving rod 23, and no obstruction is generated. The lock tongue 30 moves towards the outlet direction of the lock tongue channel 12, and compresses the first elastic member 40, so that the first limiting portion 51 of the limiting member 50 is finally buckled on the top end of the lock tongue 30, and the abutting force of the first limiting portion 51 (the torsion provided by the second elastic member 70) interacts with the elastic force of the first elastic member 40 plus the abutting force provided by the third limiting portion 80 to the first abutting portion 52, so that the lock tongue 30 is kept at the first position and locked. At this time, the driving motor 21 drives the driving rod 23 to move to a certain extent, and one end of the first trigger rod 61 still moves in the slot 231 of the driving rod 23 and gradually approaches to one end of the slot 231 of the driving rod 23; when the lock is unlocked, the driving rod 23 moves up to the second position, the inner wall of the slot 231 of the driving rod 23 drives one end of the first trigger rod 61 to move up, so that the first trigger rod 61 rotates, presses the second trigger rod 62, drives the second trigger rod 62 to move down along the axial direction of the lock tongue 30, presses the second abutting part 53 of the limiting part 50, and simultaneously compresses the third elastic part 63. The limiting member 50 rotates, the first limiting portion 51 thereof leaves the top end of the lock tongue 30, and the lock tongue 30 moves up to the unlocking position under the action of the first elastic member 40. At this time, the driving rod moves downward, the second trigger rod 62 is reset under the action of the third elastic member 63, and the limiting member 50 is reset to the first state under the torsion action of the second elastic member 70 and the supporting force provided by the third limiting portion 80 to the first supporting portion 52.

The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A door lock structure, comprising:

a lock shell, wherein a cavity is formed in the lock shell, a lock tongue channel is arranged on the lock shell, and the lock tongue channel is communicated with the cavity;

the spring bolt is arranged in the cavity and partially extends into the spring bolt channel, and a first elastic piece is arranged between the spring bolt and the cavity wall of the cavity;

the driving component is arranged in the cavity, acts on the lock tongue and drives the lock tongue to move so as to perform locking operation;

the limiting piece is rotatably arranged in the cavity through a second elastic piece, the limiting piece is provided with a first state for locking and limiting the lock tongue when the lock tongue is positioned at the locking position, the first state can be kept under the action of the second elastic piece, and the limiting piece is provided with a second state for releasing the limit of the lock tongue under the stress state; and

the linkage assembly is arranged in the cavity, the linkage assembly is in linkage with the limiting piece and the driving assembly, and the linkage assembly can apply force to the limiting piece under the action of the driving assembly so as to enable the limiting piece to be converted from the first state to the second state.

2. The door lock structure according to claim 1, wherein the second elastic member is a torsion spring that always provides a torsion force by which the stopper is shifted from the second state to the first state.

3. The door lock structure according to claim 1, wherein the stopper has a first stopper portion, the first stopper portion being provided in a hook shape;

when the limiting piece is in a first state, the top end of the lock tongue is lower than the first limiting part of the limiting piece, and the first limiting part abuts against the top end of the lock tongue.

4. The door lock structure according to claim 3, wherein the lock tongue includes a lock tongue body and a second limiting portion formed at a top end of the lock tongue body, a radial dimension of the second limiting portion is greater than a radial dimension of the lock tongue body, and the first limiting portion abuts against an upper portion of the second limiting portion to limit the lock tongue.

5. The door lock structure according to claim 1, wherein the stopper has a first abutting portion;

and a third limiting part is formed on the chamber wall of the lock shell and is matched with the first supporting part so that the limiting part keeps the first state.

6. The door lock structure according to claim 1, wherein the stopper has a second abutting portion;

the linkage assembly is matched with the second abutting part to drive the limiting piece to be converted from the first state to the second state.

7. The door lock structure of claim 1, wherein the drive assembly includes a drive rod having a third abutment;

the linkage assembly comprises a first trigger rod and a second trigger rod, the first trigger rod is rotatably arranged in the cavity and acts on the second trigger rod, the first trigger rod is matched with the third supporting part, and the first trigger rod rotates and drives the second trigger rod to move along the axis direction of the lock tongue under the action of the third supporting part.

8. The door lock structure according to claim 7, wherein a third elastic member is provided between the second trigger lever and a chamber wall of the lock case, the third elastic member being provided so as to be in a compressed state when the first trigger lever drives the second trigger lever to move.

9. The door lock structure according to claim 7, wherein the driving lever is formed with a groove strip along an axial direction thereof, the inner wall of the groove strip near the side of the lock tongue forms the third abutting portion, and one end of the first trigger lever is located in the groove strip.

10. The door lock structure of claim 7, wherein the driving assembly further comprises a driving motor and a driving screw, the driving motor is fixed in the cavity, the driving screw is in threaded connection with the driving rod, and the driving screw rotates to drive the driving rod to move so as to drive the lock tongue to move.