Door lock system and driving module thereof

Patent metadata

Field	Value
Publication number	US-2024141688-A1
Application number	US-202318476629-A
Country	US
Kind code	A1
Filing date	Sep 28, 2023
Priority date	Nov 2, 2022
Publication date	May 2, 2024
Grant date	—

Abstract

A door lock system includes an external handle, a locking structure and a driving module. The driving module includes a driving shaft; a driving bar penetrates through the driving shaft; a cam sleeved on the driving shaft and having a guiding inclined surface; a locking member movably arranged between the locking structure and the cam, and formed with a through hole; a sliding member slidably sleeved on the driving bar and having one end penetrates through the through hole; and a first elastic member configured to push the sliding member to abut against the guiding inclined surface. When the driving bar is rotated along a first rotation direction, the sliding member is configured to move toward the locking structure along the guiding inclined surface to push the locking member to engage with the locking structure, in order to prevent the external handle from rotating relative to the locking structure.

First claim

What is claimed is:

1 . A door lock system, comprising:
an external lock assembly, comprising:
an external handle; and
a locking structure; and
a driving module, comprising:
a driving shaft configured to drive a latch to move when being rotated;
a driving bar penetrating through the driving shaft and rotatable relative to the driving shaft;
a cam sleeved on the driving shaft and having a guiding inclined surface;
a locking member movably sleeved on the driving bar and arranged between the locking structure and the cam, wherein the locking member is formed with a through hole;
a sliding member slidably sleeved on the driving bar and arranged between the locking member and the cam, wherein one end of the sliding member penetrates through the through hole; and
a first elastic member configured to abut against the end of the sliding member in order to push the sliding member to abut against the guiding inclined surface;
wherein when the driving bar is rotated along a first rotation direction, the sliding member is configured to move toward the locking structure along the guiding inclined surface to push the locking member to engage with the locking structure, in order to prevent the external handle from rotating relative to the locking structure.

2 . The door lock system of claim 1 , wherein the driving module further comprises a second elastic member configured to abut against the locking member in order to push the locking member to move away from the locking structure.

3 . The door lock system of claim 2 , wherein when the driving bar is rotated along a second rotation direction, the sliding member is configured to move away from the locking structure along the guiding inclined surface, and the second elastic member is configured to push the locking member to move away from the locking structure to engage with the cam, in order to allow the external handle to rotate relative to the locking structure to further drive the latch to move through the driving shaft.

4 . The door lock system of claim 1 , wherein the driving bar has a protrusion structure, the first elastic member has a first end abutting against the protrusion structure of the driving bar, and a second end abutting against the end of the sliding member.

5 . The door lock system of claim 1 , wherein the external lock assembly further comprises a lock cylinder arranged on the external handle, the lock cylinder has an accommodation structure configured to accommodate a first end of the driving bar, the lock cylinder is configured to drive the driving bar to rotate through the accommodation structure when being rotated.

6 . The door lock system of claim 1 , further comprising an internal lock assembly, wherein the internal lock assembly comprises:
an internal handle; a turning button arranged on the internal handle; an internal rotating shaft connected between the turning button and a second end of the driving bar, wherein the turning button is configured to drive the driving bar to rotate through the internal rotating shaft when being rotated; and an internal rotating cylinder connected between the internal handle and the driving shaft; wherein when the locking member is engaged with the locking structure and when the internal handle is rotated, the internal handle is configured to drive the driving shaft to rotate through the internal rotating cylinder, in order to rotate the cam relative to the sliding member, such that the sliding member is moved away from the locking structure along the guiding inclined surface, and the second elastic member is configured to push the locking member to move away from the locking structure to engage with the cam.

7 . The door lock system of claim 1 , wherein the locking member has a first blocking structure configured to prevent the sliding member from rotating when the locking member is engaged with the locking structure.

8 . The door lock system of claim 7 , wherein the sliding member comprises:
a main body slidably sleeved on the driving bar; and a protrusion block protruded from the main body, wherein an upper end of the protrusion block is formed with a second blocking structure corresponding to the first blocking structure, the second blocking structure is configured to abut against the first blocking structure to prevent the sliding member from rotating when the locking member is engaged with the locking structure.

9 . The door lock system of claim 8 , wherein a first side of the second blocking structure is formed with an inclined surface relative to the first blocking structure, and a second side of the second blocking structure is formed with a vertical surface relative to the first blocking structure.

10 . The door lock system of claim 8 , wherein a lower end of the protrusion block is formed with a sliding inclined surface configured to abut against the guiding inclined surface.

11 . A driving module of a door lock system, comprising:
a driving shaft configured to drive a latch to move when being rotated; a driving bar penetrating through the driving shaft and rotatable relative to the driving shaft; a cam sleeved on the driving shaft and having a guiding inclined surface; a locking member movably sleeved on the driving bar and arranged between a locking structure of the door lock system and the cam, wherein the locking member is formed with a through hole; a sliding member slidably sleeved on the driving bar and arranged between the locking member and the cam, wherein one end of the sliding member penetrates through the through hole; and a first elastic member configured to abut against the end of the sliding member in order to push the sliding member to abut against the guiding inclined surface; wherein when the driving bar is rotated along a first rotation direction, the sliding member is configured to move toward the locking structure along the guiding inclined surface to push the locking member to engage with the locking structure.

12 . The driving module of claim 11 , further comprising a second elastic member configured to abut against the locking member in order to push the locking member to move away from the locking structure.

13 . The driving module of claim 12 , wherein when the driving bar is rotated along a second rotation direction, the sliding member is configured to move away from the locking structure along the guiding inclined surface, and the second elastic member is configured to push the locking member to move away from the locking structure to engage with the cam.

14 . The driving module of claim 11 , wherein the driving bar has a protrusion structure, the first elastic member has a first end abutting against the protrusion structure of the driving bar, and a second end abutting against the end of the sliding member.

15 . The driving module of claim 11 , wherein the locking member has a first blocking structure configured to prevent the sliding member from rotating.

16 . The driving module of claim 15 , wherein the sliding member comprises:
a main body slidably sleeved on the driving bar; and a protrusion block protruded from the main body, wherein an upper end of the protrusion block is formed with a second blocking structure corresponding to the first blocking structure, the second blocking structure is configured to abut against the first blocking structure to prevent the sliding member from rotating.

17 . The driving module of claim 16 , wherein a first side of the second blocking structure is formed with an inclined surface relative to the first blocking structure, and a second side

Assignees

• Taiwan Fu Hsing Ind Co Ltd

Inventors

• Lin Yu-Cheng

Classifications

• E05B13/101

  for disconnecting the handle (E05B13/103, E05B13/105 take precedence) · CPC title

• E05B13/106 Primary

  for handles pivoted about an axis perpendicular to the wing (E05B13/101, E05B13/103, E05B13/105 take precedence) · CPC title

• E05B13/004 Primary

  by locking the spindle, follower, or the like · CPC title