Rivet with replaceable rivet head

By designing replaceable rivet heads and improving durability, the applicability and maintenance costs of existing rivets have been addressed, resulting in enhanced flexibility and durability.

CN223662303UActive Publication Date: 2025-12-12DONGGUAN JINKUN HARDWARE MACHINERY CO LTD
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Patent Information

Application Number
CN202520027697.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-12-12
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

Existing rivets cannot select the appropriate head type according to different working environments and needs, which reduces applicability and flexibility. At the same time, replacing the entire rivet increases maintenance complexity and cost.

Method used

A replaceable rivet head structure was designed. The rivet head can be quickly disassembled and installed by combining a core-pulling rod and a connecting rod, using an L-shaped groove and a fixing post. A corrosion-resistant layer and a temperature-resistant layer are set inside the rivet to improve its durability.

Benefits of technology

It improves the practicality and flexibility of rivets, reduces maintenance costs, and extends service life through enhanced corrosion resistance and high-temperature performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rivet with a replaceable rivet head, which comprises a core-pulling rod, a rivet tube is sleeved outside the core-pulling rod, a rivet end cap is arranged on the outer surface of the rivet tube, a connecting rod is slidably connected inside the core-pulling rod, the right end of the connecting rod is fixedly connected with a rivet head, a mounting mechanism is arranged inside the core-pulling rod, and the rivet head is fixedly connected with the rivet head. A forming mechanism is arranged in the rivet head and the rivet pipe, a plurality of protruding blocks are fixedly connected to the outer surface of the core pulling rod, and the installing mechanism comprises an L-shaped groove, a fixing column and a magnetic layer. According to the rivet with the replaceable rivet head, by rotating the rivet head, the fixing column is driven to move in the L-shaped groove and penetrate through the two clamping blocks till the fixing column reaches the right-angle position of the L-shaped groove, the rivet head is pulled outwards till the connecting rod is separated from the interior of the core pulling rod, and the rivet head is rapidly detached; therefore, the user can select a proper head type according to different working environments and specific requirements.
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Description

Technical Field

[0001] This utility model relates to the field of rivet technology, specifically a rivet with a replaceable rivet head. Background Technology

[0002] A rivet is a mechanical fastener used to connect or secure two or more parts. It is typically made of metal and has two ends: one end is a round head (or other shape), and the other end is a rivet shank. After riveting, the two ends of the rivet are fixed to the connecting parts, forming a strong connection. In practical applications, the specifications and types of rivets may vary depending on different connection requirements and working environments. By changing the rivet head, different specifications and types of rivets can be adapted to meet various connection needs. Therefore, rivets with replaceable rivet heads are used.

[0003] Existing rivets primarily utilize their own deformation to fix targets. During riveting, the rivet body is typically passed through a through-hole in the target object, and then one end of the target object is positioned tightly against the designated riveting location. Next, a specialized rivet gun pulls the tail end of the rivet core, and the tension applied by the rivet gun causes the portion of the rivet body near the rivet head to deform, thus tightly engaging with the riveted part and achieving axial restraint and fixation of the target object. However, this method cannot select the appropriate head type according to different working environments and needs, reducing the rivet's applicability and flexibility. Furthermore, when the rivet head wears or is damaged due to long-term use or harsh working environments, users often need to replace the entire rivet. This replacement method not only increases the complexity and workload of maintenance but also significantly increases maintenance costs.

[0004] To address this issue, the present invention provides a rivet with a replaceable rivet head. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rivet with a replaceable rivet head, which solves the problem that the aforementioned rivets cannot select the appropriate head type according to different working environments and needs, thus reducing the applicability and flexibility of the rivets.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rivet with a replaceable rivet head, comprising a core-pulling rod, a rivet tube sleeved on the outside of the core-pulling rod, a rivet end cap on the outer surface of the rivet tube, a connecting rod slidably connected inside the core-pulling rod, a rivet head fixedly connected to the right end of the connecting rod, an installation mechanism provided inside the core-pulling rod, a component mechanism provided inside the rivet head and the rivet tube, and multiple protrusions fixedly connected to the outer surface of the core-pulling rod;

[0007] The installation mechanism includes an L-shaped groove, a fixing post, and a magnetic layer. The L-shaped groove is formed on the inner wall of the core-pulling rod. The bottom of the fixing post is fixedly connected to the top of the connecting rod. The magnetic layer is respectively provided on the outside of the connecting rod and the inner wall of the core-pulling rod. Two locking blocks are fixedly connected to the inner wall of the L-shaped groove.

[0008] Preferably, the outer side of the fixing column is slidably connected inside the L-shaped groove.

[0009] Preferably, the card block is made of rubber.

[0010] Preferably, the constituent structure includes a corrosion-resistant layer, a heat-resistant layer is disposed inside the corrosion-resistant layer, and a base layer is disposed inside the heat-resistant layer.

[0011] Preferably, the corrosion-resistant layer is made of stainless steel.

[0012] Preferably, the heat-resistant layer is made of a nickel-based alloy.

[0013] Preferably, the base layer is made of aluminum alloy.

[0014] Beneficial effects

[0015] This utility model provides a rivet with a replaceable rivet head. Compared with the prior art, it has the following advantages:

[0016] (1) The rivet with a replaceable head can be rotated to move the fixing post inside the L-shaped groove and pass through two locking blocks until it reaches the right angle of the L-shaped groove. The head is then pulled outward until the connecting rod is disengaged from the core-pulling rod, which realizes quick disassembly of the head. This allows users to select the appropriate head type according to different working environments and specific needs, thereby greatly improving the practicality and flexibility of the device. At the same time, when the head of the rivet is worn or damaged due to long-term use or harsh working environment, users often only need to replace the rivet head, thereby reducing maintenance costs.

[0017] (2) The rivet with replaceable head improves the corrosion resistance and strength of the rivet by setting a corrosion-resistant layer, and the rivet can maintain high strength and good toughness at high temperature by setting a temperature-resistant layer, thus improving the service life of the rivet. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is an exploded view of the internal structure of the installation mechanism of this utility model;

[0020] Figure 3 This is a utility model Figure 2Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the connecting rod and the core-pulling rod of this utility model;

[0022] Figure 5 This is a front view of the internal structure of the component mechanism of this utility model.

[0023] In the diagram: 1. Core-pulling rod; 2. Rivet tube; 3. Rivet end cap; 4. Connecting rod; 5. Nail head; 6. Installation mechanism; 61. L-shaped groove; 62. Fixing column; 63. Magnetic layer; 64. Locking block; 7. Component mechanism; 71. Corrosion-resistant layer; 72. Temperature-resistant layer; 73. Base layer; 8. Protrusion. 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] Example 1:

[0026] Please see Figure 1-4 A rivet with a replaceable rivet head includes a core-pulling rod 1, a rivet tube 2 sleeved on the outside of the core-pulling rod 1, a rivet end cap 3 on the outer surface of the rivet tube 2, a connecting rod 4 slidably connected inside the core-pulling rod 1, a rivet head 5 fixedly connected to the right end of the connecting rod 4, an installation mechanism 6 provided inside the core-pulling rod 1, a component mechanism 7 provided inside the rivet head 5 and the rivet tube 2, and multiple protrusions 8 fixedly connected to the outer surface of the core-pulling rod 1.

[0027] The mounting mechanism 6 includes an L-shaped groove 61, a fixing post 62, and a magnetic layer 63. The L-shaped groove 61 is formed on the inner wall of the core-pulling rod 1. The bottom of the fixing post 62 is fixedly connected to the top of the connecting rod 4. The magnetic layer 63 is respectively provided on the outside of the connecting rod 4 and the inner wall of the core-pulling rod 1. Two locking blocks 64 are fixedly connected to the inner wall of the L-shaped groove 61.

[0028] The purpose of this setup is that when using rivets, the rivet is first fixed with a rivet gun. When the rivet head 5 needs to be replaced, the rivet head 5 is rotated, causing the fixing post 62 to move inside the L-shaped groove 61 and pass through the two locking blocks 64 until it reaches the right angle of the L-shaped groove 61. The rivet head 5 is then pulled outward, causing the entire rivet head 5 to gradually separate from the rivet body until the connecting rod 4 disengages from the core-pulling rod 1, thus completing the removal of the rivet head 5. When installation is required, the fixing post 62 on the connecting rod 4 is aligned with the L-shaped groove 61. The rivet head 5 is held, and the connecting rod 4 is inserted into the core-pulling rod 1. At this time, the fixing post 62 will move inside the L-shaped groove 61. When the fixing post 62 moves to the right angle of the L-shaped groove 61, the rivet head 5 is rotated, causing the connecting rod 4 to rotate. The rotation of the connecting rod 4 causes the fixing post 62 to move until it passes between the two locking blocks 64, thus completing the installation.

[0029] Preferably, the outer side of the fixing post 62 is slidably connected to the inside of the L-shaped groove 61. The purpose of this arrangement is to enable the fixing post 62 to move along a predetermined trajectory.

[0030] Preferably, the locking block 64 is made of rubber. The purpose of this design is to allow the fixing post 62 to slide into the deepest part of the L-shaped groove 61.

[0031] Example 2:

[0032] Please see Figure 2 and 5 This embodiment provides a technical solution based on embodiment one: the component 7 includes a corrosion-resistant layer 71, a heat-resistant layer 72 is disposed inside the corrosion-resistant layer 71, and a base layer 73 is disposed inside the heat-resistant layer 72.

[0033] The purpose of this design is to effectively resist the erosion of various corrosive media through the corrosion-resistant layer 71, so that the rivet can maintain its original strength and performance in various harsh environments, such as humidity, acid and alkali, and salt spray, greatly extending the service life of the rivet. The temperature-resistant layer 72 ensures that the rivet connection will not fail due to temperature rise. At the same time, the temperature-resistant layer 72 also gives the rivet good toughness at high temperatures, so that the rivet can still maintain its structural integrity and connection reliability under the dual effects of high temperature and mechanical load.

[0034] Preferably, the corrosion-resistant layer 71 is made of stainless steel. The purpose of this design is that the stainless steel corrosion-resistant layer can ensure that the surface and internal structure of the rivet are not corroded, maintain its original mechanical strength and connection performance, extend the service life of the rivet, and improve the stability and safety of the connector.

[0035] Preferably, the heat-resistant layer 72 is made of a nickel-based alloy. The purpose of this design is to ensure that the rivet can maintain high strength and good toughness under high temperature conditions, thus ensuring the stability and reliability of the connection structure.

[0036] Preferably, the base layer 73 is made of aluminum alloy. The purpose of this design is that, as the base layer of the rivet, aluminum alloy can not only effectively reduce the overall weight of the connector and improve the energy efficiency and portability of the product, but also reduce production costs and improve material utilization while ensuring sufficient strength. In addition, aluminum alloy has good thermal and electrical conductivity, which helps to distribute heat evenly and dissipate heat quickly during the riveting process, thereby improving riveting efficiency and quality.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rivet with a replaceable rivet head, comprising a core pull rod (1), characterized in that: The core-pulling rod (1) is fitted with a rivet tube (2) on the outside. The rivet tube (2) has a rivet end cap (3) on its outer surface. The core-pulling rod (1) is slidably connected to a connecting rod (4). The right end of the connecting rod (4) is fixedly connected to a nail head (5). The core-pulling rod (1) is provided with an installation mechanism (6). The nail head (5) and the rivet tube (2) are provided with a component mechanism (7). The core-pulling rod (1) is fixedly connected to a plurality of protrusions (8). The installation mechanism (6) includes an L-shaped groove (61), a fixing post (62), and a magnetic layer (63). The L-shaped groove (61) is formed on the inner wall of the core-pulling rod (1). The bottom of the fixing post (62) is fixedly connected to the top of the connecting rod (4). The magnetic layer (63) is respectively provided on the outside of the connecting rod (4) and the inner wall of the core-pulling rod (1). Two locking blocks (64) are fixedly connected to the inner wall of the L-shaped groove (61).

2. The rivet with a replaceable rivet head according to claim 1, characterized in that: The outer side of the fixed column (62) is slidably connected to the inside of the L-shaped groove (61).

3. A rivet with a replaceable rivet head according to claim 1, characterized in that: The card block (64) is made of rubber.

4. A rivet with a replaceable rivet head according to claim 1, characterized in that: The constituent structure (7) includes a corrosion-resistant layer (71), a heat-resistant layer (72) is disposed inside the corrosion-resistant layer (71), and a base layer (73) is disposed inside the heat-resistant layer (72).

5. A rivet with a replaceable rivet head according to claim 4, characterized in that: The corrosion-resistant layer (71) is made of stainless steel.

6. A rivet with a replaceable rivet head according to claim 4, characterized in that: The heat-resistant layer (72) is made of a nickel-based alloy.

7. A rivet with a replaceable rivet head according to claim 4, characterized in that: The base layer (73) is made of aluminum alloy.