GB2634894A

GB2634894A - Additional structure for rear handle locking mechanism of electric locks

Info

Publication number: GB2634894A
Application number: GB2316191.2A
Authority: GB
Inventors: Choroomzadeh Amir
Original assignee: Simpled Tech Ltd
Current assignee: Simpled Tech Ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2025-04-30
Also published as: GB202316191D0

Abstract

A handle assembly for a lock mechanism, comprising a door lock body 10 and a handle 20, wherein handle is provided with a control button 22, the control button is connected to a control ejector pin 23, the other side of the rear handle is connected to a handle head 25, a connecting block 27 is provided inside the handle and is in contact with the control ejector pin, and by pressing the control button, the control ejector pin is pushed, so that the control ejector pin pushes the connecting block into engagement (“snap fit” connection is disclosed) between a rear shaft seat of the lock allowing the handle to operate the lock mechanism 121. Preferably the button and ejector pin are biased into the disconnected position by spring 13 and the connecting block may have a square cross section. Also provided is a slide button 282 which moves a toggle locking block 28 having a locking end 281 into engagement with the depressed control button to hold it in the engaged position, a ball bearing 285 can engage either of two holes 291 in the handle to secure the toggle locking block in either position.

Description

SEPARATE STRUCTURE FOR REAR HANDLE ASSEMBLY OF LOCK TECHNICAL FIELD

1. The disclosure is directed to the technical field of electronic door locks, and specifically to a separate structure for a rear handle assembly of a lock. BACKGROUND 2. As technology continues to develop, electronic door locks have gradually taken the place of conventional mechanical locks as the mainstream door lock system in modern houses and commercial buildings. An electronic door lock has many advantages in convenience and security, for example, it can be unlocked through a password, fingerprint, smart phone and other ways without using a physical key, and can also record unlocking events, improving the manageability and security of the door lock. However, there are some security concerns in the use of conventional electronic door locks, one of which is related to the security of the rear handle.

3. In the context of a typical electronic door lock, it is customary for such a device to consist of a front handle and a rear handle. A notable security issue arises in the design of traditional electronic door locks. Specifically, while the front handle is engaged to secure the door, a vulnerability cxists in that an unauthorised individual, through the malicious or unlawful act of peeking through a letterbox and the application of specific tools or skills, can manipulate the rear handle downwards. Consequently, this manipulation results in the unauthorised and unpermitted opening of the locked door.

4. This security concern may pose a potential risk and a sense of insecurity to people who are on business trips, traveling or staying at hotels, apartments and the like, especially in some public places or residential areas, this may induce wrongdoers to take advantage of this situation and invade other people's personal space or property, thereby endangering people's property and personal safety.

SUMMARY

5. With regard to the technical concerns mentioned in the Background. the purpose of the disclosure is to provide a separate structure for a rear handle assembly of a lock, which is simple in structure, easy to operate and enables switching between various usage states, effectively preventing the lock from being unlocked by other auxiliary tools and improving the security factor, so as to address the technical concerns mentioned in the Background.

6. For the purpose mentioned above, the disclosure provides a technical solution: a separate structure for a rear handle assembly of a lock, comprising a door lock body and a rear handle, wherein the rear handle is mounted on a side face of the door lock body, one side of the rear handle is provided with a control button, the control button is connected to a control ejector pin, the other side of the rear handle is connected to a handle head, a connecting block is provided inside the rear handle, one end of the control ejector pin is inserted into the rear handle and comes into contact with the connecting block, a lock cylinder assembly is mounted inside the door lock body, a rear shaft seat is provided in the middle of the lock cylinder assembly, one end of the handle head is sheathed outside the rear shaft seat, and by pressing the control button, the control ejector pin is pushed, so that the control ejector pin pushes the connecting block into a snap-fit connection between the rear shaft seat and the handle head.

7. Further, a movable clamping groove is provided inside the handle head, a snap-in clamping groove is concavely provided at a rear end of the rear shaft seat, and the movable clamping groove is disposed opposite to the snap-in clamping groove.

8. Further, a reset spring is provided between the snap-in clamping groove and the connecting block.

9. Further, a rear side of the rear handle is concavely provided with a mounting groove, a front side of the rear handle is concavely provided with a mounting square groove, and a connecting through groove is provided between the mounting groove and the mounting square groove.

10. Further, a cored screw is provided at a rear end of the movable clamping groove, a connecting through hole is provided at the rear end of the movable clamping groove, a rear end of the cored screw passes through the connecting through hole and is disposed in the connecting through groove, the connecting block is arranged at the front of the cored screw, and a front end of the control ejector pin passes through the cored screw and comes into contact with the connecting block.

11. Further, an outer edge of a rear end of the handle head is concavely provided with a plurality of positioning grooves, an inner side wall of the mounting square groove is convexly provided with a plurality of positioning ribs that fit with the positioning grooves, the rear end of the handle head is embedded in the mounting square groove, and the plurality of positioning ribs are respectively embedded in the plurality of positioning grooves for connection.

12. Further, the snap-in clamping groove and the movable clamping groove both are square grooves.

13. Further, the rear side of the rear handle is concavely provided with a mounting groove, the control button is arranged in the mounting groove, a locking toggle block is provided inside the mounting groove, a front end of the locking toggle block is provided with a locking end that fits with the control button, the locking end is disposed outside the control button, a toggle slot is provided on a lower side face of the mounting groove, a toggle bump is provided on a lower end of the locking toggle block, the toggle slot is larger in size than the toggle bump, and the toggle bump is disposed in the toggle slot.

14. Further, a limiting plate is fixedly mounted at a rear end of the mounting groove, two limiting holes are provided on a surface of the limiting plate, a spring groove is concavely provided inside the locking toggle block, a limiting spring is provided in the spring groove, a limiting ball is provided at an upper end of the limiting spring, and an upper end of the limiting ball is embedded in the limiting holes.

15. Further, a button through hole is provided on a surface of the limiting plate, and one end of the control button is arranged externally through the button through hole.

16. The disclosure mainly has the following beneficial effects: the rear handle is mounted on a side face of the door lock body, the rear side of the rear handle is provided with a control button, the control button is internally connected with a control ejector pin, a handle head is provided on the front side of the rear handle, a movable clamping groove is provided inside the handle head, a square connecting block is slidably provided inside the movable clamping groove, the front end of the control ejector pin is inserted into the movable clamping groove and comes into contact with the connecting block, a lock cylinder assembly is mounted inside the door lock body, a rear shaft seat is provided in the middle of the lock cylinder assembly, a front end of the handle head is sheathed outside the rear shaft seat, the rear end of the rear shaft seat is concavely provided with a snap-in clamping groove, and the movable clamping groove is disposed opposite to the snap-in clamping groove. The separate structure for the rear handle assembly of the lock in the disclosure is simple in structure, easy to operate and enables switching between various usage states, effectively preventing the lock from being unlocked by other auxiliary tools and improving the security factor. BRIEF DESCRIPTION OF THE DRAWINGS 17. Fig. I is a schematic diagram of an overall three-dimensional structure of the disclosure.

18. Fig. 2 is a schematic diagram of an exploded structure of the disclosure.

19. Fig. 3 is a schematic diagram of an enlarged structure at A of Fig. 2.

20. Fig. 4 is a schematic diagram of a front structure of the disclosure.

21. Fig. 5 is a schematic diagram of a cross-sectional structure at A-A of Fig. 4.

22. Fig. 6 is a schematic diagram of a connection structure between a handle head and a

mounting square groove of the disclosure

23. Reference numerals: door lock body 10; rear handle 20; mounting groove 21; control button 22; control ejector pin 23; ejector pin clamping groove 221; mounting square groove 24; handle head 25; positioning groove 251; positioning rib 241; connecting through groove 211; movable clamping groove 252; cored screw 26; connecting through hole 253; connecting block 27; mounting groove 11; lock cylinder assembly 12; rear shaft seat 121; snap-in clamping groove 121a; reset spring 13; locking toggle block 28; locking end 281; toggle slot 212; toggle bump 282; limiting plate 29; limiting hole 291; spring groove 283; limiting spring 284; limiting ball 285; and button through hole 292.

DESCRIPTION OF THE EMBODIMENTS

24. As shown in Figs. 1-6, a separate structure for a rear handle assembly of a lock comprises a door lock body 10 and a rear handle 20, the rear handle 20 is pullably installed on a side face of the door lock body 10, and when in use, opening and closing a door is realised by pulling the rear handle 20 to control the unlocking or locking of the door lock body 10.

25. A rear side of the rear handle 20 is concavely provided with a mounting groove 21, a control button 22 is provided in the mounting groove 21, the control button 22 is internally connected with a control ejector pin 23, a ejector pin clamping groove 221 is concavely provided inside the control button 22, and a rear end of the control ejector pin 23 is embedded in the ejector pin clamping groove 221 for connection.

26. A front side of the rear handle 20 is concavely provided with a mounting square groove 24, a handle head 25 is connected in the mounting square groove 24, an outer edge of a rear end of the handle head 25 is concavely provided with a plurality of positioning grooves 251, an inner side wall of the mounting square groove 24 is convexly provided with a plurality of positioning ribs 241 that fit with the positioning grooves 251, the rear end of the handle head 25 is embedded in the mounting square groove 24, and at the same time, the plurality of positioning ribs 241 are respectively embedded in the plurality of positioning grooves 251, thereby connecting the handle head 25 in the mounting square groove 24 for easy installation.

27. In practice, a connecting through groove 211 is provided between the mounting groove 21 and the mounting square groove 24, the mounting groove 21 and the mounting square groove 24 communicate with each other via the connecting through groove 211, a movable clamping groove 252 is provided inside the handle head 25, a cored screw 26 is provided at a rear end of the movable clamping groove 252, a connecting through hole 253 is provided at the rear end of the movable clamping groove 252, a rear end of the cored screw 26 passes through the connecting through hole 253 and is disposed in the connecting through groove 211, and a square connecting block 27 is slidably provided inside the movable clamping groove 252, the connecting block 27 is arranged at the front of the cored screw 26, and a front end of the control ejector pin 23 passes through the cored screw 26 and comes into contact with the connecting block 27, thereby constituting the separate structure. When in use, by pressing the control button 22 to push the control ejector pin 23 to move forward steadily along the cored screw 26, the control ejector pin 23 pushes the connecting block 27 to slide, which is easy to use.

28. In practice, a mounting groove 11 is concavely provided inside the door lock body 10, a lock cylinder assembly 12 is mounted inside the mounting groove 11, a rear shaft seat 121 is provided in the middle of the lock cylinder assembly 12, a front end of the handle head 25 is sheathed outside the rear shaft seat 121, a snap-in clamping groove 121a is concavely provided at a rear end of the rear shaft seat 121, the movable clamping groove 252 is disposed opposite to the snap-in clamping groove 121a, and the snap-in clamping groove 121a and the movable clamping groove 252 both are square grooves, and when in use, the connecting block 27 can be slid into a snap-fit connection between the snap-in clamping groove 121a and the movable clamping groove 252, to connect the rear handle 20 with the lock cylinder assembly 12 and pull the rear handle 20 to achieve unlocking.

29. A reset spring 13 is provided between the snap-in clamping groove 121a and the connecting block 27, and the reset spring 13 is used to push the connecting block 27 out of the snap-in clamping groove 121a to its initial position.

30. When in use, during unlocking, the control button 22 is first pressed, so that the control button 22 pushes the control ejector pin 23 to move forward steadily along the cored screw 26 and push the connecting block 27, thereby the connecting block 27 forces the reset spring 13 to slide into a snap-fit connection between the snap-in clamping groove 121a and the movable clamping groove 252, so that the rear handle 20 and the lock cylinder assembly 12 are in a connected state, and then the rear handle 20 is pulled downwards to unlock. Otherwise, the control button 22 is released, so that the reset spring 13 pushes the connecting block 27 out of the snap-in clamping groove 121a to its initial position, thereby the rear handle 20 and the lock cylinder assembly 12 are in a separated state, and at this moment, pulling the rear handle 20 downwards will be idle and cannot unlock the door, thereby forming a simple structure which is easy to operate and able to effectively prevent the door lock from being opened by other auxiliary tools, improving the security factor.

31. A locking toggle block 28 is provided inside the mounting groove 21, a front end of the locking toggle block 28 is provided with a locking end 281 that fits with the control button 22, the locking end 281 is in the shape of a semi-circular ring, the locking end 281 is arranged outside the control button 22, a lower side face of the mounting groove 21 is provided with a toggle slot 212, a toggle bump 282 is convexly provided at a lower end of the locking toggle block 28, the toggle slot 212 is larger in size than the toggle bump 282, and the toggle bump 282 is provided in the toggle slot 212, when in use, when the control button 22 is pressed to unlock, pushing the toggle bump 282 forward pushes the locking toggle block 28 to move forward, so that the locking end 281 is clamped outside the control button 22, and the control button 22 is locked to prevent it from moving upwards, whereby the rear handle 20 can, for a long time, drive the lock cylinder assembly 12 to unlock, which is easy to operate and user friendly.

32. A limiting plate 29 is fixedly mounted at a rear end of the mounting groove 21, two limiting holes 291 are provided on a surface of the limiting plate 29, a spring groove 283 is concavely provided inside the locking toggle block 28, a limiting spring 284 is provided in the spring groove 283, a limiting ball 285 is provided at an upper end of the limiting spring 284, and an upper end of the limiting ball 285 is embedded in the limiting holes 291; when in use, when the locking toggle block 28 is turned forward, at the same time, the limiting ball 285 moves into the limiting holes 291 at the front end for limiting; and otherwise, when the locking toggle block 28 is turned backward, the limiting ball 285 moves into the limiting hole 291 at the rear end so as to return to the original separated state, which is easy to operate and use.

33. A button through hole 292 is provided on a surface of the limiting plate 29, and the rear end of the control button 22 is arranged externally through the button through hole 292, thereby making it easy for a user to press the control button 22.

34. In summary, the rear handle 20 is mounted on the side face of the door lock body 10, the rear side of the rear handle 20 is provided with a control button 22, the control button 22 is internally connected with a control ejector pin 23, the front side of the rear handle 20 is provided with a handle head 25, a movable clamping groove 252 is provided inside the handle head 25, a square connecting block 27 is slidably provided inside the movable clamping groove 252, the front end of the control ejector pin 23 is inserted into the movable clamping groove 252 and comes into contact with the connecting block 27, a lock cylinder assembly 12 is provided inside the door lock body 10, and a rear shaft seat 121 is provided in the middle of the lock cylinder assembly 12, the front end of the handle head 25 is sheathed outside the rear shaft seat 121, a snap-in clamping groove 121a is concavely provided at the rear end of the rear shaft seat 121, the movable clamping groove 252 is disposed opposite to the snap-in clamping groove 121a, and The separate structure for the rear handle assembly of the lock in the disclosure is simple in structure, easy to operate and enables switching between various usage states, effectively preventing the lock from being unlocked by other auxiliary tools and improving the security factor.

Claims

Claims WHAT IS CLAIMED IS: 1. a separate structure for a rear handle assembly of a lock, comprising a door lock body (10) and a rear handle (20), the rear handle (20) is installed on a side face of the door lock body (10), wherein: one side of the rear handle (20) is provided with a control button (22), the control button (22) is connected to a control ejector pin (23), the other side of the rear handle (20) is connected to a handle head (25), a connecting block (27) is provided inside the rear handle (20), one end of the control ejector pin (23) is inserted into the rear handle (20) and comes into contact with the connecting block (27), a lock cylinder assembly (12) is mounted inside the door lock body (10), a rear shaft seat (121) is provided in the middle of the lock cylinder assembly (12), one end of the handle head (25) is sheathed outside the rear shaft seat (121), and by pressing the control button (22), the control ejector pin (23) is pushed, so that the control ejector pin (23) pushes the connecting block (27) into a snap-fit connection between the rear shaft seat (121) and the handle head (25).
2. The separate structure for the rear handle assembly of the lock according to Claim 1, wherein a movable clamping groove (252) is provided inside the handle head (25), a snap-in clamping groove (121a) is concavely provided at a rear end of the rear shaft seat (121), and the movable clamping groove (252) is disposed opposite to the snap-in clamping groove (121a).
3. The separate structure for the rear handle assembly of the lock according to Claim 2, wherein a reset spring (13) is provided between the snap-in clamping groove (121a) and the connecting block (27).
4. The separate structure for the rear handle assembly of the lock according to Claim 3, wherein a rear side of the rear handle (20) is concavely provided with a mounting groove (21), a front side of the rear handle (20) is concavely provided with a mounting square groove (24), and a connecting through groove (211) is provided between the mounting groove (21) and the mounting square groove (24).
5. The separate structure for the rear handle assembly of the lock according to Claim 4, wherein a cored screw (26) is provided at a rear end of the movable clamping groove (252), a connecting through hole (253) is provided at the rear end of the movable clamping groove (252), a rear end of the cored screw (26) passes through the connecting through hole (253) and is disposed in the connecting through groove (211), the connecting block (27) is arranged at the front of the cored screw (26), and a front end of the control ejector pin (23) passes through the cored screw (26) and comes into contact with the connecting block (27).
6. The separate structure for the rear handle assembly of the lock according to Claim 5, wherein an outer edge of a rear end of the handle head (25) is concavely provided with a plurality of positioning grooves (251), an inner side wall of the mounting square groove (24) is convexly provided with a plurality of positioning ribs (241) that fit with the positioning grooves (251), the rear end of the handle head (25) is embedded in the mounting square groove (24), and the plurality of positioning ribs (241) are respectively embedded in the plurality of positioning grooves (251) for connection.
7. The separate structure for the rear handle assembly of the lock according to Claim 6, wherein the snap-in clamping groove (121a) and the movable clamping groove (252) both are square grooves.
8. The separate structure for the rear handle assembly of the lock according to any one of Claims 4-7, wherein the control button (22) is arranged in the mounting groove (21), a locking toggle block (28) is provided inside the mounting groove (21), a front end of the locking toggle block (28) is provided with a locking end (281) that fits with the control button (22), the locking cnd (281) is disposed outside the control button (22), a toggle slot (212) is provided on a lower side face of the mounting groove (21), a toggle bump (282) is provided on a lower end of the locking toggle block (28), the toggle slot (212) is larger in size than the toggle bump (282), and the toggle bump (282) is disposed in the toggle slot (212).
9. The separate structure for the rear handle assembly of the lock according to Claim 8, wherein a limiting plate (29) is fixedly mounted at a rear end of the mounting groove (21), two limiting holes (291) are provided on a surface of the limiting plate (29), a spring groove (283) is concavely provided inside the locking toggle block (28), a limiting spring (284) is provided in the spring groove (283), a limiting ball (285) is provided at an upper end of the limiting spring (284), and an upper end of the limiting ball (285) is embedded in the limiting holes (291).
10. The separate structure for the rear handle assembly of the lock according to Claim 9, wherein a button through hole (292) is provided on a surface of the limiting plate (29), and one end of the control button (22) is arranged externally through the button through hole (292).