Anti-loose rivet structure
The rivet structure addresses loosening issues by integrating anti-slip teeth and an extrusion ring to maintain a strong pre-tightening force, effectively preventing core ejection in vibrating conditions.
Patent Information
- Application Number
- CN202420860338.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-24
AI Technical Summary
Existing rivets are prone to loosening due to mechanical vibration, leading to the core being ejected from the pipe cap.
The rivet structure incorporates anti-loosening features such as anti-slip teeth and an extrusion ring to enhance the pre-tightening force between the pipe sleeve and nail core, preventing loosening through mutual interaction.
The anti-loosening structure effectively prevents loosening by maintaining a strong pre-tightening force, even in environments with severe vibrations.
Smart Images
Figure CN222254605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hardware fasteners, in particular to an anti-loosening rivet structure. Background Art
[0002] The general structure of a core-driving rivet is as follows: it includes a tube cap, a crack is provided on the tube cap, the tube cap has an insertion cavity, a nail core is inserted in the insertion cavity, and the nail core is struck during use, so that the tube cap is torn along the crack, thereby achieving the purpose of riveting.
[0003] In the prior art, there is a core-driving rivet disclosed in the patent application publication number CN 108105235 A, referring to Figure 1 shown.
[0004] The existing rivets of this type may also have the following problems during use: due to the influence of mechanical vibration, the rivet core may be out of the pipe cap, causing the rivet to loosen. Summary of the invention
[0005] In view of the problems pointed out in the background technology, the utility model proposes an anti-loosening rivet structure to solve the above technical problems.
[0006] The technical solution of the utility model is achieved in this way:
[0007] An anti-loosening rivet structure comprises a pipe sleeve, a pipe cap and a rivet core, wherein the outer side wall of the rivet core is provided with anti-loosening teeth.
[0008] The utility model is further configured that the anti-dropping teeth include anti-dropping racks arranged along the axial direction of the nail core.
[0009] The utility model is further configured that a plurality of anti-slipping racks are provided, and the plurality of anti-slipping racks are arranged at intervals in the circumferential direction of the nail core.
[0010] The utility model is further configured that the anti-slip teeth include an anti-slip tooth ring arranged along the circumference of the nail core.
[0011] The utility model is further configured that the anti-slipping gear ring is provided with a plurality of anti-slipping gear rings, and the plurality of anti-slipping gear rings are arranged at intervals in the circumferential direction of the nail core.
[0012] The utility model is further configured that the anti-slip teeth include anti-slip convex teeth protruding along the radial direction of the nail core.
[0013] The utility model is further configured that the anti-slip convex teeth are provided in plurality, and the plurality of anti-slip convex teeth are distributed on the surface of the nail core.
[0014] The utility model is further configured that an annular extrusion ring is provided on the outer side wall of the tube sleeve, and in the axial direction of the nail core, the thickness of the extrusion ring gradually increases from one end to the other end, and the thickness of the extrusion ring at one end close to the tube cap is larger.
[0015] The utility model is further configured that a split groove is provided on the side wall of the pipe sleeve.
[0016] The utility model is further configured such that the extrusion ring is arranged close to the pipe cap.
[0017] By adopting the above technical solution, the beneficial effects of the utility model are as follows:
[0018] The nail core is provided with anti-slip teeth, and the purpose of preventing loosening is achieved through the mutual extrusion between the anti-slip teeth and the pipe sleeve.
[0019] An extrusion ring is arranged on the pipe sleeve, so that when the pipe cap of the nail core box is knocked, the extrusion ring interacts with the hole at the installation position, and the extrusion ring deforms inward, causing the pipe sleeve to deform inward, so that a pre-tightening force is formed between the pipe sleeve, the anti-slip teeth and the nail core, thereby achieving the purpose of preventing slippage and loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 It is a structural schematic diagram of the prior art.
[0022] Figure 2 It is a structural schematic diagram of the utility model.
[0023] Figure 3 It is a structural schematic diagram of the nail core of the utility model.
[0024] Description of the reference numerals in the accompanying drawings: pipe sleeve 1, pipe cap 2, nail core 3, anti-slip rack 5, anti-slip gear ring 6, anti-slip convex teeth 7, extrusion ring 8, split groove 9. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] For reference Figure 1-3 The utility model is described as follows:
[0027] A rivet structure for preventing loosening includes a sleeve 1, a cap 2, and a nail core 3. The cap 2 is connected to the rear end of the sleeve 1, and the nail core 3 is connected to the hole in the center of the sleeve 1 and the cap 2. A split groove 9 is provided on the side wall of the front end of the sleeve 1, and the split groove 9 runs through the inner and outer sides and the front side of the sleeve 1. In the above technical scheme, the sleeve 1 is inserted into the hole on the part, the cap 2 is pressed against the surface of the part, and the nail core 3 is struck. The nail core 3 moves forward, forcing the front end of the sleeve 1 to open and deform, forming a riveted structure. The diameter of the nail core 3 is equal to the inner diameter of the sleeve 1 and the cap 2.
[0028] The driven nail core 3 is fixedly connected with the pipe sleeve 1 by the pre-tightening force formed between the nail core 3 and the pipe sleeve 1. When the installation environment is an environment with severe and frequent vibration, the nail core 3 may become loose, resulting in the problem of riveting looseness.
[0029] In order to solve the above-mentioned problem of loosening due to vibration, anti-slip teeth are provided on the outer wall of the nail core 3. The anti-slip teeth are provided with the following implementation structure:
[0030] Implementation structure 1: The anti-slip teeth include an anti-slip rack 5 arranged along the axial direction of the nail core 3. The anti-slip rack 5 is in the shape of a long strip. A plurality of anti-slip racks 5 are provided, and the plurality of anti-slip racks 5 are arranged at intervals in the circumferential direction of the nail core 3. When the nail core 3 is driven into the sleeve 1, the anti-slip rack 5 and the sleeve 1 are squeezed to form a pre-tightening force. When the nail core 3 is about to rotate circumferentially to loosen, it will be restricted by the anti-slip rack 5 to prevent it from rotating circumferentially.
[0031] Implementation structure 2: The anti-slipping teeth include an anti-slipping tooth ring 6 arranged along the circumference of the nail core 3. The anti-slipping tooth ring 6 is a circular ring structure. There are multiple anti-slipping tooth rings 6, and the multiple anti-slipping tooth rings 6 are arranged at intervals along the circumference of the nail core 3. When the nail core 3 is driven into the sleeve 1, the anti-slipping tooth ring 6 and the sleeve 1 will be squeezed to form a pre-tightening force. When the nail core 3 is about to move axially and loosen, it will be restricted by the anti-slipping tooth ring 6 to prevent its axial movement.
[0032] Implementation structure three: The anti-slip teeth include anti-slip convex teeth 7 protruding radially along the nail core 3. A plurality of anti-slip convex teeth 7 are provided, and the plurality of anti-slip convex teeth 7 are distributed on the surface of the nail core 3. Like the above structure, the anti-slip convex teeth 7 can prevent the nail core 3 from rotating circumferentially and moving axially.
[0033] The above three implementation structures can be implemented separately, or they can be implemented in combination with each other, or the three structures can be implemented simultaneously.
[0034] An annular extrusion ring 8 is provided on the outer wall of the pipe sleeve 1. In the axial direction of the nail core 3, the thickness of the extrusion ring 8 gradually increases from one end to the other end. The thickness of the end of the extrusion ring 8 close to the pipe cap 2 is relatively large, and the extrusion ring 8 is arranged close to the pipe cap 2. With this technical solution, the nail core 3 is struck, and the pipe sleeve 1 and the pipe cap 2 are struck. When the pipe sleeve 1 is struck, the pipe sleeve 1 moves forward, and the hole wall connected with the extrusion ring 8 and the pipe sleeve 1 is squeezed, which causes the side wall of the pipe sleeve 1 to deform inwardly. In this way, the pipe sleeve 1, the nail core 3 and the anti-slip teeth form a greater pre-tightening force, which helps to enhance the anti-slip ability.
[0035] The extrusion ring 8 can be integrally provided with the nail core 3 , or can be separately provided with the nail core 3 .
[0036] Figure 3 The figure shows a schematic diagram of the structure of the anti-slip rack 5, the anti-slip gear ring 6 and the anti-slip convex teeth 7 on the nail core 3. The number and position of the anti-slip rack 5, the anti-slip gear ring 6 and the anti-slip convex teeth 7 on the nail core 3 can be set as needed.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-loosening rivet structure, comprising a pipe sleeve (1), a pipe cap (2), and a rivet core (3), characterized in that: Anti-slip teeth are provided on the outer side wall of the nail core (3); the anti-slip teeth include anti-slip racks (5) arranged along the axial direction of the nail core (3).
2. The anti-loosening rivet structure according to claim 1, characterized in that: A plurality of the anti-slipping racks (5) are provided, and the plurality of anti-slipping racks (5) are arranged at intervals in the circumferential direction of the nail core (3).
3. The anti-loosening rivet structure according to claim 2, characterized in that: The anti-slip teeth comprise an anti-slip tooth ring (6) arranged along the circumference of the nail core (3).
4. The anti-loosening rivet structure according to claim 3, characterized in that: A plurality of the anti-slip gear rings (6) are provided, and the plurality of anti-slip gear rings (6) are arranged at intervals in the circumferential direction of the nail core (3).
5. The anti-loosening rivet structure according to claim 2 or 4, characterized in that: The anti-slip teeth include anti-slip convex teeth (7) protruding radially along the nail core (3).
6. The anti-loosening rivet structure according to claim 5, characterized in that: A plurality of the anti-slip convex teeth (7) are provided, and the plurality of anti-slip convex teeth (7) are distributed on the surface of the nail core (3).
7. The anti-loosening rivet structure according to claim 6, characterized in that: An annular extrusion ring (8) is provided on the outer side wall of the tube sleeve (1). In the axial direction of the nail core (3), the thickness of the extrusion ring (8) gradually increases from one end to the other end, and the thickness of the extrusion ring (8) at the end close to the tube cap (2) is larger.
8. The anti-loosening rivet structure according to claim 1, characterized in that: A split groove (9) is provided on the side wall of the pipe sleeve (1).
9. The anti-loosening rivet structure according to claim 7, characterized in that: The extrusion ring (8) is arranged close to the tube cap (2).