Lock shell sleeve structure
By designing a connecting sleeve assembly for the insert and bottom parts on the lock housing, the contact force of the torsion spring is enhanced, solving the problem of insufficient torsion spring support and improving the lock body's anti-vandalism and stability.
Patent Information
- Application Number
- CN202520398618.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In existing technologies, the torsion springs on the lock case have insufficient support, resulting in a need to improve their resistance to vandalism.
A connecting sleeve assembly for the insert kit and the bottom kit was designed. The installation gap is formed by the insertion and a torsion spring is installed to enhance the contact strength of the torsion spring.
The lock body's resistance to vandalism has been improved, and the supporting role of the torsion spring has been enhanced, making the lock body more stable.
Smart Images

Figure CN223838795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door lock technology, and more specifically, to a lock housing structure. Background Technology
[0002] The prior art CN222457067U discloses a handle assembly, including a lock seat and a handle that rotates relative to the lock seat. A locking mechanism is provided in the mounting cavity. The locking mechanism includes a square bushing, a locking cam rotatably connected to the square bushing, and a locking ball. The locking ball is placed in a limiting groove formed between the locking cam and the square bushing. A lock cylinder is linked to one end of the locking cam. A lock shell is provided on the lock seat. A mounting frame is provided in the mounting cavity. The lock cylinder, locking cam, and square bushing are integrated on the mounting frame. The mounting frame is sleeved outside the lock shell and is fixedly connected to the handle. Rotating the handle causes the mounting frame to rotate relative to the lock shell. The lock shell or mounting frame is provided with a locking groove for limiting the ball. Rotating the locking cam causes the locking ball to extend and retract relative to the limiting groove, thereby driving a part of the locking ball to enter or leave the locking groove. This utility model integrates all parts into the mounting frame to form a modular component, which improves the subsequent assembly efficiency and the stability of the connected components is relatively good.
[0003] The torsion spring in the above structure is installed on the lock case. In actual use, the torsion spring may not provide sufficient support, and its anti-vandalism capability needs to be improved. Summary of the Invention
[0004] This utility model overcomes the shortcomings of the prior art. Its structure is reasonably designed. By setting interlocking inserts and bottom inserts, the contact strength of the torsion spring is increased, providing better support for the torsion spring and making the overall lock body more resistant to damage.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A locking sleeve structure includes a connecting sleeve assembly, which includes a bottom sleeve and a insert sleeve that are inserted into each other, with an installation gap formed between the bottom sleeve and the insert sleeve, and a torsion spring installed in the installation gap.
[0007] Preferably, the insert kit has insert plates, and the bottom kit has insertion slots that are compatible with the insert plates.
[0008] Preferably, the insert kit is provided with a stop block for the end of the torsion spring to abut.
[0009] Preferably, the bottom assembly has a contact block that abuts and engages with the abutment block at the corresponding position.
[0010] Preferably, the bottom kit has at least one socket.
[0011] The beneficial effects of this utility model are:
[0012] This utility model has a reasonable structural design. By setting interlocking inserts and bottom parts, the contact strength of the torsion spring is increased, providing better support for the torsion spring and making the overall lock body more resistant to damage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;
[0014] Figure 2 This is an exploded view of a specific embodiment of the present invention.
[0015] In the diagram: 6. Connecting sleeve assembly; 61. Base sleeve; 62. Insert sleeve; 63. Installation gap; 64. Torsion spring; 65. Insertion hole; 66. Insert plate; 67. Insertion groove; 68. Abutment block; 69. Contact block. Detailed Implementation
[0016] 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.
[0017] like Figure 1-2 As shown, a lock housing structure includes a connecting sleeve assembly 6, which includes a bottom sleeve 61 and a plug sleeve 62 that are inserted into each other. An installation gap 63 is formed between the bottom sleeve 61 and the plug sleeve 62, and a torsion spring 64 is installed on the installation gap 63. A insert 66 is provided on the plug sleeve 62, and a plug groove 67 adapted to the insert 66 is provided on the bottom sleeve 61. The plug sleeve 62 is provided with a stop block 68 for the end of the torsion spring 64 to abut. A contact block 69 is provided on the bottom sleeve 61 at a position corresponding to the stop block 68 and abuts against the stop block 68. At least one insertion hole 65 is provided on the bottom sleeve 61.
[0018] By adopting the above technical solution, in this utility model, by setting the interlocking insert 62 and bottom insert 61, the contact force strength of the torsion spring 64 is increased, providing better support for the torsion spring 64, and making the overall anti-vandalism of the lock body better.
[0019] The mating arrangement of the insert 66 and the insertion slot 67 allows for the insertion and mating of the bottom assembly 61 and the insert assembly 62. After insertion, the contact block 69 abuts against the abutment block 68, sealing the mounting gap 63. The torsion spring 64, installed within the mounting gap 63, maintains excellent connection stability. Furthermore, compared to existing technologies, the torsion spring 64 provides superior support.
[0020] The socket 65 is designed to allow for the insertion of a locking element, thereby locking the entire connecting sleeve assembly 6.
[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A locking sleeve structure, comprising a connecting sleeve assembly (6), characterized in that, The connecting sleeve assembly (6) includes a bottom sleeve (61) and a plug sleeve (62) that are inserted into each other, with an installation gap (63) formed between the bottom sleeve (61) and the plug sleeve (62), and a torsion spring (64) is installed on the installation gap (63).
2. The locking sleeve structure according to claim 1, characterized in that, The insert kit (62) is provided with inserts (66), and the bottom kit (61) is provided with insert slots (67) that are adapted to the inserts (66).
3. A locking sleeve structure according to claim 1 or 2, characterized in that, The insert (62) is provided with a stop (68) for the end of the torsion spring (64) to abut.
4. A locking sleeve structure according to claim 3, characterized in that, The bottom assembly (61) is provided with a contact block (69) that abuts and engages with the abutment block (68) at the position corresponding to the abutment block (68).
5. A locking sleeve structure according to claim 4, characterized in that, The bottom kit (61) is provided with at least one jack (65).
Citation Information
Patent Citations
Handle assembly
CN222457067U