Anti-loosening rivet nut
By coating the outside of the rivet nut with polyurethane anti-corrosion paint and waterproof coating, and by setting anti-slip teeth and plugs on the nut head and deformed part, the problems of poor corrosion resistance and anti-slip performance of the rivet nut are solved, and higher stability and anti-loosening effect are achieved.
Patent Information
- Application Number
- CN202520765041.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing anti-loosening rivet nuts have poor corrosion resistance and anti-slip performance when used in different environments, which affects their performance.
The nut body is coated with polyurethane anti-corrosion paint and waterproof coating, and anti-slip teeth are set between the nut head and the deformed part. Anti-slip blocks and plugs are installed inside to enhance stability and protection and prevent impurities from entering.
It improves the anti-slip and corrosion resistance of rivet nuts, enhances stability and prevents loosening, extends outdoor service life, and prevents dust and moisture from affecting performance.
Smart Images

Figure CN223839523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rivet nut technology, specifically to anti-loosening rivet nuts. Background Technology
[0002] Rivet nuts, also known as rivet caps or instant rivet caps, are widely used in the fastening field, particularly in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration. Using rivet nuts can not only improve production efficiency and reduce costs, but also enhance the stability and reliability of products.
[0003] Common anti-loosening rivet nuts also have some problems. For example, rivet nuts have a wide range of applications and need to be installed in different environments, but some rivet nuts have poor corrosion resistance and anti-slip performance, which can easily affect their use.
[0004] Therefore, we propose a new type of anti-loosening rivet nut to improve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide an anti-loosening rivet nut to solve the problem mentioned in the background art that the poor corrosion resistance and anti-slip performance of the rivet nut easily affects its use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening rivet nut, comprising a nut body, a nut head at the top of the nut body, a deformable part fixedly connected to the top of the nut body, a reinforcing step fixedly connected between the deformable part and the nut head, anti-slip teeth provided between the reinforcing step and the nut head, and a protective layer provided on the exterior of the nut body and the deformable part, the interior of the protective layer comprising polyurethane anti-corrosion paint and a waterproof coating.
[0007] As a further technical solution of this utility model, the nut body is internally threaded, and the anti-slip teeth are distributed in a ring at the bottom edge of the nut head.
[0008] As a further technical solution of this utility model, the waterproof coating is applied to the outside of the nut body and the deformed part, and the polyurethane anti-corrosion paint is applied to the outside of the waterproof coating.
[0009] As a further technical solution of this utility model, mounting grooves are provided on the left and right sides inside the deformable part, and limit grooves are provided at the front and rear ends of the mounting grooves. Mounting blocks are provided on the left and right sides inside the deformable part, and connecting blocks are fixedly connected to the front and rear ends of the mounting blocks respectively. Anti-slip blocks are fixedly connected to the side of the mounting blocks near the middle.
[0010] As a further technical solution of this utility model, the mounting block is embedded inside the mounting groove, and the anti-slip blocks are symmetrically distributed about the vertical center line of the deformable part.
[0011] As a further technical solution of this utility model, the connecting block is embedded inside the limiting groove, and the connecting block and the limiting groove cooperate with each other.
[0012] As a further technical solution of this utility model, oil inlet holes are provided on the left and right sides of the nut body, and a block is provided on the side of the oil inlet hole near the middle, and a block plate is fixedly connected to the side of the block near the outside.
[0013] As a further technical solution of this utility model, the plug plate and the plug block are embedded inside the oil inlet hole, and the oil inlet hole and the plug block cooperate with each other.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the anti-loosening rivet nut not only improves anti-slip and corrosion resistance and facilitates the replacement of the anti-slip block, but also prevents impurities from entering the oil inlet hole;
[0015] (1) By setting up reinforced steps, anti-slip teeth, protective layer, polyurethane anti-corrosion paint and waterproof coating, the anti-slip teeth can increase the installation torque after riveting, thereby improving the stability of the nut body. The nut body and the deformed part are coated with polyurethane anti-corrosion paint and waterproof coating. The polyurethane anti-corrosion paint has good weather resistance, which enables the nut body to maintain its performance in the outdoor environment for a long time and is not easy to powder and crack. The polyurethane anti-corrosion paint also has high wear resistance. The waterproof coating can prevent water from seeping into the interior of the nut body and affecting the use effect of the nut body.
[0016] (2) By setting a connecting block, mounting groove, limiting groove and anti-slip block, when the thickness of the anti-slip block needs to be changed, rotate the anti-slip block to make the mounting block rotate, so that the connecting block can rotate into the inside of the mounting groove. Then pull the anti-slip block to make the mounting block disengage from the inside of the mounting groove, so that the anti-slip block can be disassembled. Take an anti-slip block of appropriate thickness, insert the mounting block on one side of the anti-slip block into the inside of the mounting groove, rotate the anti-slip block to make the mounting block rotate, so that the connecting block is embedded in the inside of the limiting groove. The anti-slip block can improve the fastening and prevent it from being loosened by fastening.
[0017] (3) By setting a blocking plate, an oil inlet hole and a blocking block, the blocking block on one side of the blocking plate is embedded inside the oil inlet hole, which can block the oil inlet hole and prevent dust and impurities from entering the interior of the oil inlet hole and affecting the use of the nut body. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of the present utility model;
[0019] Figure 2 This is a front view cross-sectional structural diagram of the present invention;
[0020] Figure 3 This is a partial enlarged cross-sectional structural diagram of the protective layer of this utility model;
[0021] Figure 4 This is a top view enlarged cross-sectional schematic diagram of the mounting block of this utility model;
[0022] Figure 5 This is an enlarged side view sectional diagram of the mounting groove of this utility model.
[0023] In the diagram: 1. Nut body; 2. Deformed part; 3. Reinforcing step; 4. Anti-slip teeth; 5. Nut head; 6. Connecting block; 7. Internal thread; 8. Plug plate; 9. Oil inlet; 10. Plug block; 11. Mounting groove; 12. Limiting groove; 13. Anti-slip block; 14. Protective layer; 15. Polyurethane anti-corrosion paint; 16. Waterproof coating; 17. Mounting block. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 The present invention provides an embodiment of an anti-loosening rivet nut, comprising a nut body 1, a nut head 5 at the top of the nut body 1, a deformable part 2 fixedly connected to the top of the nut body 1, a reinforcing step 3 fixedly connected between the deformable part 2 and the nut head 5, an anti-slip tooth 4 between the reinforcing step 3 and the nut head 5, and a protective layer 14 provided on the outside of the nut body 1 and the deformable part 2, the interior of the protective layer 14 including a polyurethane anti-corrosion paint 15 and a waterproof coating 16;
[0026] The nut body 1 has an internal thread 7 machined inside, and anti-slip teeth 4 are distributed in a ring at the bottom edge of the nut head 5. A waterproof coating 16 is applied to the outside of the nut body 1 and the deformed part 2, and polyurethane anti-corrosion paint 15 is applied to the outside of the waterproof coating 16.
[0027] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, the anti-slip teeth 4 can increase the installation torque after riveting, thereby improving the stability of the nut body 1. The nut body 1 and the deformed part 2 are coated with polyurethane anti-corrosion paint 15 and waterproof coating 16. The polyurethane anti-corrosion paint 15 has good weather resistance, which enables the nut body 1 to maintain its performance in the outdoor environment for a long time and is not easy to powder or crack. The polyurethane anti-corrosion paint 15 also has high wear resistance. The waterproof coating 16 can prevent water from seeping into the interior of the nut body 1 and affecting the use effect of the nut body 1.
[0028] The deformable part 2 has mounting grooves 11 on the left and right sides inside. The mounting grooves 11 have limit grooves 12 at the front and rear ends. The deformable part 2 has mounting blocks 17 on the left and right sides inside. The mounting blocks 17 have connecting blocks 6 fixedly connected to the front and rear ends. The mounting blocks 17 have anti-sliding blocks 13 fixedly connected to the side of the mounting blocks 17 near the middle. The mounting blocks 17 are embedded in the mounting grooves 11. The anti-sliding blocks 13 are symmetrically distributed about the vertical center line of the deformable part 2. The connecting blocks 6 are embedded in the limit grooves 12. The connecting blocks 6 and the limit grooves 12 cooperate with each other.
[0029] Specifically, such as Figure 2 , Figure 4 and Figure 5 As shown, when the thickness of the anti-slip block 13 needs to be changed, rotate the anti-slip block 13 to make the mounting block 17 rotate, so that the connecting block 6 can rotate into the mounting groove 11. Then pull the anti-slip block 13 to make the mounting block 17 disengage from the mounting groove 11, so that the anti-slip block 13 can be removed. Take an anti-slip block 13 of appropriate thickness, insert the mounting block 17 on one side of the anti-slip block 13 into the mounting groove 11, rotate the anti-slip block 13 to make the mounting block 17 rotate, so that the connecting block 6 can be embedded in the limiting groove 12.
[0030] Oil inlet holes 9 are provided on the left and right sides of the nut body 1. A block 10 is provided on the side of the oil inlet hole 9 near the middle. A block plate 8 is fixedly connected to the side of the block 10 near the outside. The block plate 8 and the block 10 are embedded in the oil inlet hole 9 and the oil inlet hole 9 and the block 10 cooperate with each other.
[0031] Specifically, such as Figure 2 As shown, the block 10 on one side of the blocking plate 8 is embedded inside the oil inlet hole 9, which can block the oil inlet hole 9 and prevent dust and impurities from entering the interior of the oil inlet hole 9 and affecting the use of the nut body 1.
[0032] Working principle: In use, rotating the anti-slip block 13 causes the mounting block 17 to rotate, thereby allowing the connecting block 6 to rotate into the mounting groove 11. Then, pulling the anti-slip block 13 disengages the mounting block 17 from the mounting groove 11, allowing the anti-slip block 13 to be removed. Using an anti-slip block 13 of suitable thickness, insert the mounting block 17 on one side of the anti-slip block 13 into the mounting groove 11. Rotating the anti-slip block 13 causes the mounting block 17 to rotate, allowing the connecting block 6 to be embedded in the limiting groove 12. The anti-slip block 13 improves the fastening and prevents loosening. The anti-slip teeth 4 increase the installation torque after riveting. The torque is adjusted to improve the stability of the nut body 1. The nut body 1 and the deformed part 2 are coated with polyurethane anti-corrosion paint 15 and waterproof coating 16. Polyurethane anti-corrosion paint 15 has good weather resistance, which enables the nut body 1 to maintain its performance in the outdoor environment for a long time and is not easy to powder or crack. Polyurethane anti-corrosion paint 15 also has high wear resistance. Waterproof coating 16 can prevent water from seeping into the interior of the nut body 1 and affecting the use of the nut body 1. The plug 10 on one side of the plug plate 8 is embedded in the oil inlet hole 9, which can block the oil inlet hole 9 and prevent dust and impurities from entering the interior of the oil inlet hole 9 and affecting the use of the nut body 1.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An anti-loosening rivet nut, comprising a nut body (1), characterized in that: The nut body (1) has a nut head (5) at its top end. A deformable part (2) is fixedly connected to the top end of the nut body (1). A reinforcing step (3) is fixedly connected between the deformable part (2) and the nut head (5). Anti-slip teeth (4) are provided between the reinforcing step (3) and the nut head (5). A protective layer (14) is provided on the outside of the nut body (1) and the deformable part (2). The interior of the protective layer (14) includes polyurethane anti-corrosion paint (15) and a waterproof coating (16).
2. The anti-loosening rivet nut according to claim 1, characterized in that: The nut body (1) has an internal thread (7) machined inside, and the anti-slip teeth (4) are distributed in a ring at the bottom edge of the nut head (5).
3. The anti-loosening rivet nut according to claim 1, characterized in that: The waterproof coating (16) is applied to the exterior of the nut body (1) and the deformed part (2), and the polyurethane anti-corrosion paint (15) is applied to the exterior of the waterproof coating (16).
4. The anti-loosening rivet nut according to claim 1, characterized in that: The deformable part (2) has mounting grooves (11) on the left and right sides inside. The mounting grooves (11) have limit grooves (12) at the front and rear ends. The deformable part (2) has mounting blocks (17) on the left and right sides inside. The mounting blocks (17) have connecting blocks (6) fixedly connected to the front and rear ends respectively. The mounting blocks (17) have anti-slip blocks (13) fixedly connected to the side of the mounting blocks (17) near the middle.
5. The anti-loosening rivet nut according to claim 4, characterized in that: The mounting block (17) is embedded inside the mounting groove (11), and the anti-slip block (13) is symmetrically distributed about the vertical center line of the deformable part (2).
6. The anti-loosening rivet nut according to claim 4, characterized in that: The connecting block (6) is embedded inside the limiting groove (12), and the connecting block (6) and the limiting groove (12) cooperate with each other.
7. The anti-loosening rivet nut according to claim 1, characterized in that: The nut body (1) has oil inlet holes (9) on both the left and right sides. A block (10) is provided inside the oil inlet hole (9) on the side closer to the middle. A block plate (8) is fixedly connected to the side of the block (10) closer to the outside.
8. The anti-loosening rivet nut according to claim 7, characterized in that: The plug plate (8) and the plug block (10) are embedded inside the oil inlet hole (9), and the oil inlet hole (9) and the plug block (10) cooperate with each other.