Lock handle buckle structure convenient to disassemble
Through innovative design of the inner liner, decorative outer shell, and protective cover, the problem of difficulty in disassembling and assembling existing door lock handles and inner liners after damage has been solved, enabling convenient disassembly and replacement, and improving the convenience of door lock maintenance and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU BOLAN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-15
AI Technical Summary
The current installation method of door lock handles and inner liner makes them difficult to disassemble and reassemble after damage, increasing the difficulty of repair and replacement.
The design incorporates an inner liner, a decorative outer shell, and a protective cover. Through the combination of structures such as limit blocks, plastic spring blocks, and guide grooves, it enables installation and disassembly without the need for screws or drilling. The combination of limit springs and fixing blocks ensures the stability and aesthetics of the decorative outer shell.
It enables convenient disassembly and replacement of the lock handle and inner liner, improving the ease of maintenance and service life of the door lock, while maintaining the aesthetic appeal of the decorative outer shell.
Smart Images

Figure CN224244585U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware accessories technology, specifically a lock handle buckle structure that is easy to disassemble. Background Technology
[0002] During home renovation, door locks need to be installed on interior doors for easy opening and closing. However, most existing door lock handles and inner cylinders are installed by cutting grooves in the door surface and using screws and other tools. This installation method makes it inconvenient to disassemble and reassemble if the handle or inner cylinder is damaged, and it is also inconvenient to replace or repair the damaged handle or inner cylinder, affecting the maintenance and use of the door lock and increasing the difficulty of repair and replacement. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a lock handle buckle structure that is easy to disassemble, solving the problem of inconvenience in replacing or repairing damaged lock handles or inner cylinders.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a lock handle buckle structure that is easy to disassemble, including an inner liner, a decorative outer shell connected to the outer surface of the inner liner, and a protective cover provided on the outer surface of the decorative outer shell;
[0005] The inner liner includes an inner liner body. The outer surface of the inner liner body is provided with four limiting blocks in a ring shape. The end face of the inner liner body is provided with a lock cylinder. The outer surface of one end of the inner liner body is connected with four stops in a ring shape. The outer surface of the inner liner body is provided with four mounting grooves in a ring shape.
[0006] As a further technical solution of this utility model, the decorative outer shell includes a shell, a lock handle is connected to one end face of the shell, guide blocks are provided at the corresponding positions of the inner side wall of the shell and the four limiting blocks, and an adjustment groove is provided on the outer surface of the shell.
[0007] As a further technical solution of this utility model, a guide groove is provided on the inner side wall of the protective cover at the corresponding position of the sliding path of the shell, a fixing block is provided on the inner side wall of the protective cover, a limit spring is connected to one end face of the fixing block, one end of the limit spring is connected to one end face of the shell, and a through groove is provided on the outer surface of the protective cover at the corresponding position of the adjustment groove.
[0008] As a further technical solution of this utility model, the inner walls of the four mounting slots are all connected with plastic spring blocks, and the outer surfaces of the plastic spring blocks are all connected with plastic snap blocks. The inner walls of the housing are provided with sliding grooves at the corresponding positions of the sliding paths of the four plastic snap blocks. The end faces of the housing are provided with disassembly and assembly grooves corresponding to the four plastic snap blocks. The disassembly and assembly grooves and the sliding grooves are connected.
[0009] As a further technical solution of this utility model, the inner diameter of the protective cover is adapted to the outer diameter of the shell, the inner sidewall of the protective cover is connected to the outer surface of the shell through a fixing block and a limiting spring, and the inner diameter of the through groove is adapted to the inner diameter of the adjusting groove.
[0010] As a further technical solution of this utility model, the inner diameter of the shell is adapted to the outer diameter of the inner liner body, and slots are provided at the corresponding positions of the inner sidewall of the shell and the sliding path of the stop block. The inner diameter of the sliding groove is adapted to the sliding path of the plastic snap block, and the inner diameter of the disassembly groove is adapted to the outer diameter of the plastic snap block.
[0011] Beneficial effects
[0012] This utility model provides a lock handle latch structure that is easy to disassemble. Compared with the prior art, it has the following advantages:
[0013] 1. A lock handle buckle structure that is easy to disassemble, which, through the cooperation between the inner body, the limiting block, the plastic spring block, the plastic locking block and the guide block, the adjustment groove and the disassembly groove of the shell, can install and connect the inner body and the decorative shell without the need for screws and drilling, and facilitates the disassembly and replacement of the shell and the lock handle, making it easier to maintain the inner body in a timely manner and improve the service life of the door lock.
[0014] 2. A lock handle buckle structure that is easy to disassemble, through the cooperation between the guide groove and fixing block of the protective cover and the limit spring with the through groove and adjustment groove, can cover the adjustment groove after the decorative shell is installed, improve the aesthetics of the door lock installation, and prevent the decorative shell from loosening due to accidental contact during use. Attached Figure Description
[0015] Figure 1 A schematic diagram of a lock handle latch structure that is easy to disassemble;
[0016] Figure 2 A front view of a lock handle latch structure that is easy to disassemble;
[0017] Figure 3 A lock handle latch structure that is easy to disassemble Figure 2 AA section view in the middle;
[0018] Figure 4 This is an exploded view of a lock handle latch structure that is easy to disassemble.
[0019] In the diagram: 1. Inner liner; 11. Inner liner body; 12. Limiting block; 13. Mounting groove; 14. Plastic spring block; 15. Plastic locking block; 16. Stop block; 17. Lock cylinder; 2. Decorative outer shell; 21. Shell; 22. Lock handle; 23. Guide block; 24. Adjustment groove; 25. Disassembly groove; 26. Slide groove; 3. Protective cover; 31. Guide groove; 32. Fixing block; 33. Limiting spring; 34. Through groove. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 This utility model provides a technical solution for a lock handle buckle structure that is easy to disassemble: a lock handle buckle structure that is easy to disassemble includes an inner liner 1, a decorative outer shell 2 connected to the outer surface of the inner liner 1, a protective cover 3 provided on the outer surface of the decorative outer shell 2, the inner liner 1 includes an inner liner body 11, four limiting blocks 12 are arranged in a ring on the outer surface of the inner liner body 11, a lock cylinder 17 is provided on the end face of the inner liner body 11, four stops 16 are connected in a ring on the outer surface of one end of the inner liner body 11, and four mounting grooves 13 are opened in a ring on the outer surface of the inner liner body 11.
[0022] like Figure 1-4 As shown, the decorative outer casing 2 includes a housing 21. A lock handle 22 is connected to one end face of the housing 21. Guide blocks 23 are provided at corresponding positions of the inner sidewall of the housing 21 and the four limiting blocks 12. An adjustment groove 24 is provided on the outer surface of the housing 21. Plastic spring blocks 14 are connected to the inner sidewalls of the four mounting grooves 13. Plastic locking blocks 15 are connected to the outer surface of the plastic spring blocks 14. Sliding grooves 26 are provided at corresponding positions of the inner sidewall of the housing 21 and the sliding paths of the four plastic locking blocks 15. Disassembly and assembly grooves 25 are provided at the end face of the housing 21 and the four plastic locking blocks 15. The disassembly and assembly grooves 25 and the sliding grooves 26 are connected. The inner diameter of the shell 21 is adapted to the outer diameter of the inner liner body 11. The inner side wall of the shell 21 and the corresponding sliding path of the stop block 16 are provided with slots. The inner diameter of the slide groove 26 is adapted to the sliding path of the plastic clip block 15. The inner diameter of the disassembly groove 25 is adapted to the outer diameter of the plastic clip block 15. It should be noted that the plastic clip block 15 and the plastic spring block 14 can be pressed down by adjusting the groove 24, so that the plastic clip block 15 retracts into the slide groove 26, thereby facilitating the rotation of the shell 21 and facilitating the quick disassembly and assembly between the shell 21 and the inner liner body 11, replacing the lock handle 22 or repairing the inner liner 1.
[0023] like Figure 3-4 As shown, a guide groove 31 is provided on the inner sidewall of the protective cover 3 at the corresponding position of the sliding path of the housing 21. A fixing block 32 is provided on the inner sidewall of the protective cover 3. A limit spring 33 is connected to one end face of the fixing block 32. One end of the limit spring 33 is connected to one end face of the housing 21. A through groove 34 is provided on the outer surface of the protective cover 3 at the corresponding position of the adjustment groove 24. The inner diameter of the protective cover 3 is adapted to the outer diameter of the housing 21. The inner sidewall of the protective cover 3 is connected to the outer surface of the housing 21 through the fixing block 32 and the limit spring 33. The inner diameter of the through groove 34 is adapted to the inner diameter of the adjustment groove 24. It should be noted that the inner diameter of the through groove 34 on the outer surface of the protective cover 3 is the same as that of the adjustment groove 24. The through groove 34 is located below the adjustment groove 24 under the action of the limit spring 33. By rotating the protective cover 3, the through groove 34 can be made to coincide with the adjustment groove 24, which facilitates the operation of the plastic clip block 15 and ensures the aesthetics of the decorative housing 2 after installation.
[0024] The working principle of this utility model is as follows: When in use, the protective cover 3 is rotated counterclockwise along the outer surface of the shell 21, so that the fixing block 32 on the inner side wall of the protective cover 3 presses the limiting spring 33 along the outer surface of the shell 21, so that the through groove 34 on the outer surface of the protective cover 3 coincides with the adjustment groove 24 on the outer surface of the shell 21, and the decorative shell 2 can be disassembled and assembled.
[0025] Using a tool, press the plastic clip 15 in the adjustment groove 24 downwards. The plastic spring block 14 connecting the plastic clip 15 bends downwards along the mounting groove 13, causing the plastic clip 15 to retract into the sliding groove 26. Then rotate the housing 21, and the sliding groove 26 slides along the outer surface of the plastic clip 15. When the plastic clip 15 slides to the disassembly groove 25, remove the housing 21 outwards. This completes the disassembly between the housing 21 and the inner liner body 11, allowing for the replacement of the lock handle 22 or the repair of the inner liner 1.
Claims
1. A lock handle buckle structure that is easy to disassemble, comprising an inner liner (1), characterized in that, The outer surface of the inner liner (1) is connected to a decorative outer shell (2), and a protective cover (3) is provided on the outer surface of the decorative outer shell (2). The inner liner (1) includes an inner liner body (11). The outer surface of the inner liner body (11) is provided with four limiting blocks (12) in a ring shape. The end face of the inner liner body (11) is provided with a lock cylinder (17). The outer surface of one end of the inner liner body (11) is connected with four stops (16) in a ring shape. The outer surface of the inner liner body (11) is provided with four mounting grooves (13) in a ring shape.
2. The lock handle buckle structure for easy disassembly according to claim 1, characterized in that, The decorative outer shell (2) includes a shell (21), one end face of which is connected to a lock handle (22), and guide blocks (23) are provided at the corresponding positions of the inner sidewall of the shell (21) and the four limiting blocks (12), and adjustment grooves (24) are provided on the outer surface of the shell (21).
3. The lock handle buckle structure for easy disassembly according to claim 2, characterized in that, The inner wall of the protective cover (3) is provided with a guide groove (31) at the corresponding position of the sliding path of the housing (21). The inner wall of the protective cover (3) is provided with a fixing block (32). One end face of the fixing block (32) is connected to a limit spring (33). One end of the limit spring (33) is connected to one end face of the housing (21). The outer surface of the protective cover (3) is provided with a through groove (34) at the corresponding position of the adjustment groove (24).
4. The lock handle buckle structure for easy disassembly according to claim 2, characterized in that, The inner walls of the four mounting slots (13) are all connected to plastic spring blocks (14), and the outer surfaces of the plastic spring blocks (14) are all connected to plastic snap blocks (15). The inner walls of the housing (21) are provided with sliding grooves (26) at the corresponding sliding paths of the four plastic snap blocks (15). The end faces of the housing (21) and the four plastic snap blocks (15) are provided with disassembly and assembly slots (25). The disassembly and assembly slots (25) and the sliding grooves (26) are connected.
5. The lock handle buckle structure for easy disassembly according to claim 3, characterized in that, The inner diameter of the protective cover (3) is adapted to the outer diameter of the shell (21). The inner wall of the protective cover (3) is connected to the outer surface of the shell (21) through the fixing block (32) and the limiting spring (33). The inner diameter of the through groove (34) is adapted to the inner diameter of the adjusting groove (24).
6. The easily detachable lock handle buckle structure according to claim 4, characterized in that, The inner diameter of the shell (21) is adapted to the outer diameter of the inner liner body (11). The inner sidewall of the shell (21) and the corresponding sliding path of the stop (16) are provided with slots. The inner diameter of the slide groove (26) is adapted to the sliding path of the plastic clip (15). The inner diameter of the disassembly groove (25) is adapted to the outer diameter of the plastic clip (15).