A semi-hexagonal pull-rivet stud with strong waterproof performance
By incorporating anti-deformation reinforcing rings and sealing rings into the rivet nut, the problem of deformation control when the hole diameter is large is solved, resulting in better sealing and waterproofing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUOSHENG AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-31
AI Technical Summary
Existing rivet nuts are difficult to control the deformation zone when the hole diameter is large, resulting in the formation of gaps inside the hole and affecting waterproof performance.
An adjustable anti-deformation reinforcement ring is set between the rivet end and the stud, and a sealing ring is set on the limiting end. Anti-deformation reinforcement is achieved through threaded connection. Combined with the auxiliary reinforcement mechanism and sealing groove design, the sealing performance is improved.
It effectively controls the deformation of the rivet end, avoids the formation of gaps in the hole, and improves the waterproof performance of the rivet nut.
Smart Images
Figure CN224579618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener technology, and in particular to a semi-hexagonal rivet stud with strong waterproof performance. Background Technology
[0002] Rivet studs are connecting components made of carbon structural steel, consisting of a rivet nut and a stud. They are widely used in automotive, electrical / electronic engineering, kitchen equipment connections, solar energy technology, railway technology, medical equipment, and construction applications. They enable automatic, continuous, parameterized, and stable connections for different plate thicknesses, and are suitable for scenarios where there is no operating space behind the rivet. Compared to traditional welded nuts, they offer advantages such as lighter weight, anti-rotation, and easy installation, making them particularly suitable for non-structural load-bearing connections. Existing rivet nuts achieve their locking function through their deformation zone; however, if the fitting hole diameter is large, the height requirement of the deformation zone increases, making deformation difficult to control. If deformation occurs within the hole, gaps will appear, allowing water to easily leak out after fixing, thus reducing the waterproof performance of the rivet nut and necessitating improvement. Utility Model Content
[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a semi-hexagonal rivet stud with strong waterproof performance, comprising a rivet nut and a stud. The rivet nut is fixedly connected to the stud. The rivet nut includes a fixed end, a rivet end, and a limiting end for installation. An adjustable anti-deformation reinforcing ring is provided between the rivet end and the stud. The inner circumferential surface of the rivet end has an internal thread, and the outer circumferential surface of the anti-deformation reinforcing ring has an external thread matching the internal thread. The anti-deformation reinforcing ring is threadedly connected to the inner circumferential surface of the rivet end. A sealing ring for enhancing waterproof performance is provided on the fixed end.
[0004] By adopting the above technical solution, a deformation-resistant reinforcing ring is set between the rivet end and the stud. Before installing the rivet stud, the position of the deformation-resistant reinforcing ring inside the rivet end is adjusted according to the depth of the mounting hole. During rivet installation, the rivet end at the location of the deformation-resistant reinforcing ring is less prone to deformation, thereby controlling the deformation position within the deformation zone of the rivet end. This ensures that the rivet end located inside the mounting hole does not deform, preventing excessive gaps between the rivet end inside the mounting hole and the inner wall of the mounting hole, which would affect the waterproof performance of the sealing box. Furthermore, setting a sealing ring on the limiting end can further improve the sealing and waterproof performance of the mounting hole connection.
[0005] A further feature of this invention is that an operation hole for easy installation is provided on one end face of the anti-deformation reinforcing ring.
[0006] By adopting the above technical solution, since an operation hole for easy installation is opened on one end face of the anti-deformation reinforcing ring, when adjusting the position of the anti-deformation reinforcing ring, a rod-shaped tool can be used to move the anti-deformation reinforcing ring to rotate through the operation hole, thereby achieving the effect of screwing in and out.
[0007] A further feature of this invention is that the riveting end is provided with an auxiliary reinforcement mechanism, which includes an auxiliary reinforcement ring and a limiting block. A groove matching the auxiliary reinforcement ring is formed on the outer circumferential surface of the riveting end near the limiting end. The auxiliary reinforcement ring is detachably disposed in the groove. Matching mounting grooves are formed at both ends of the auxiliary reinforcement ring. The limiting block is disposed in the mounting groove at one end of the auxiliary reinforcement ring, and a limiting groove matching the limiting block is formed in the mounting groove at the other end.
[0008] By adopting the above technical solution, since the riveting end is provided with an auxiliary reinforcement mechanism, the auxiliary reinforcement mechanism includes an auxiliary reinforcement ring and a limiting block. The outer peripheral surface of the riveting end near the limiting end has a groove that matches the auxiliary reinforcement ring. The auxiliary reinforcement ring is detachably set in the groove. Both ends of the auxiliary reinforcement ring have matching mounting grooves. The limiting block is set in the mounting groove at one end of the auxiliary reinforcement ring, and the mounting groove at the other end has a limiting groove that matches the limiting block. The auxiliary reinforcement ring further reinforces the part of the riveting tube located in the mounting hole to prevent deformation. The auxiliary reinforcement ring itself is also detachable. With the cooperation of the limiting block and the limiting groove, it can be installed without the aid of installation tools.
[0009] A further feature of this invention is that a sealing groove matching the shape of the sealing ring is provided on the fixed end, and the depth of the sealing groove is less than the thickness of the sealing ring.
[0010] By adopting the above technical solution, since the fixed end has a sealing groove that matches the shape of the sealing ring, and the depth of the sealing groove is less than the thickness of the sealing ring, when the sealing ring is pressed, it can deform within the sealing groove, thereby avoiding the situation where the sealing ring loses its deformability due to excessive pressing, thus resulting in damage to the sealing performance. Attached Figure Description
[0011] Appendix Figure 1 This is a schematic diagram of a semi-hexagonal rivet stud with strong waterproof performance, according to a specific embodiment of this utility model.
[0012] Appendix Figure 2 This is a partial exploded structural diagram of a semi-hexagonal rivet stud with strong waterproof performance, according to a specific embodiment of this utility model.
[0013] Appendix Figure 3This is a partial exploded structural diagram of a semi-hexagonal rivet stud with strong waterproof performance, according to a specific embodiment of this utility model.
[0014] 1-Rivet nut, 2-Stud, 3-Fixed end, 4-Rivet end, 5-Limit end, 6-Anti-deformation reinforcing ring, 7-Sealing ring, 8-Operating hole, 9-Auxiliary reinforcing mechanism, 10-Auxiliary reinforcing ring, 11-Limit block, 12-Groove, 13-Mounting groove, 14-Limit groove, 15-Sealing groove. Detailed Implementation
[0015] like Figure 1-3 As shown, a semi-hexagonal rivet stud with strong waterproof performance includes a rivet nut 1 and a stud 2. The rivet nut is fixedly connected to the stud. The rivet nut includes a fixed end 3, a rivet end 4, and a limiting end 5 for limiting during installation. An adjustable anti-deformation reinforcing ring 6 is provided between the rivet end and the stud. The inner circumferential surface of the rivet end is provided with an internal thread, and the outer circumferential surface of the anti-deformation reinforcing ring is provided with an external thread that matches the internal thread. The anti-deformation reinforcing ring is connected to the inner circumferential surface of the rivet end by a thread. A sealing ring 7 is provided on the fixed end to enhance the waterproof performance.
[0016] A deformation-resistant reinforcing ring is installed between the rivet end and the stud. Before installing the rivet stud, the position of the deformation-resistant reinforcing ring inside the rivet end is adjusted according to the depth of the mounting hole. During rivet installation, the rivet end at the location of the deformation-resistant reinforcing ring is less prone to deformation, thus controlling the deformation position within the deformation zone of the rivet end. This ensures that the rivet end located inside the mounting hole does not deform, preventing excessive gaps between the rivet end inside the mounting hole and the inner wall of the mounting hole, which would affect the waterproof performance of the sealing box. Furthermore, a sealing ring is installed on the limiting end to further improve the sealing and waterproof performance at the mounting hole connection.
[0017] The anti-deformation reinforcing ring has an operation hole 8 on one end face for easy installation.
[0018] Since the anti-deformation reinforcing ring has an operating hole on one end face for easy installation, when adjusting the position of the anti-deformation reinforcing ring, a rod-shaped tool can be used to move the anti-deformation reinforcing ring through the operating hole, thereby achieving the effect of screwing in and out.
[0019] The riveting end is provided with an auxiliary reinforcement mechanism 9, which includes an auxiliary reinforcement ring 10 and a limiting block 11. A groove 12 matching the auxiliary reinforcement ring is opened on the outer peripheral surface of the riveting end near the limiting end. The auxiliary reinforcement ring is detachably set in the groove. Matching mounting grooves 13 are opened at both ends of the auxiliary reinforcement ring. The limiting block is set in the mounting groove at one end of the auxiliary reinforcement ring, and a limiting groove 14 matching the limiting block is opened in the mounting groove at the other end.
[0020] Because the riveting end is equipped with an auxiliary reinforcement mechanism, which includes an auxiliary reinforcement ring and a limiting block, a groove matching the auxiliary reinforcement ring is opened on the outer peripheral surface of the riveting end near the limiting end. The auxiliary reinforcement ring is detachably installed in the groove, and matching mounting grooves are opened at both ends of the auxiliary reinforcement ring. The limiting block is installed in the mounting groove at one end of the auxiliary reinforcement ring, and a limiting groove matching the limiting block is opened in the mounting groove at the other end. The auxiliary reinforcement ring further reinforces the portion of the riveting tube located in the mounting hole to prevent deformation. The auxiliary reinforcement ring itself is also detachable. With the cooperation of the limiting block and the limiting groove, it can be installed without the aid of installation tools.
[0021] The fixed end has a sealing groove 15 that matches the shape of the sealing ring, and the depth of the sealing groove is less than the thickness of the sealing ring.
[0022] Because the fixed end has a sealing groove that matches the shape of the sealing ring, and the depth of the sealing groove is less than the thickness of the sealing ring, when the sealing ring is pressed, it can deform within the sealing groove, thereby avoiding the situation where the sealing ring loses its deformability due to excessive pressing, which would lead to damage to the sealing performance.
Claims
1. A semi-hexagonal rivet with strong waterproof performance, comprising a rivet nut and a stud, the rivet nut and the stud being fixedly connected, characterized in that: The rivet nut includes a fixed end, a rivet end, and a limiting end for installation. An adjustable anti-deformation reinforcing ring is provided between the rivet end and the stud. The inner circumferential surface of the rivet end is provided with an internal thread, and the outer circumferential surface of the anti-deformation reinforcing ring is provided with an external thread that matches the internal thread. The anti-deformation reinforcing ring is connected to the inner circumferential surface of the rivet end by a thread. A sealing ring for enhancing waterproof performance is provided on the fixed end.
2. The semi-hexagonal pull-stud with strong waterproof performance according to claim 1, characterized in that: The anti-deformation reinforcing ring has an operating hole on one end face for easy installation.
3. The semi-hexagonal pull-stud with strong waterproof performance according to claim 1, characterized in that: The riveting end is provided with an auxiliary reinforcement mechanism, which includes an auxiliary reinforcement ring and a limiting block. A groove matching the auxiliary reinforcement ring is opened on the outer peripheral surface of the riveting end near the limiting end. The auxiliary reinforcement ring is detachably set in the groove. Matching mounting grooves are opened at both ends of the auxiliary reinforcement ring. The limiting block is set in the mounting groove at one end of the auxiliary reinforcement ring, and a limiting groove matching the limiting block is opened in the mounting groove at the other end.
4. The semi-hexagonal pull-stud with strong waterproof performance according to claim 1, characterized in that: The fixed end has a sealing groove that matches the shape of the sealing ring, and the depth of the sealing groove is less than the thickness of the sealing ring.