Corrosion-resistant self-locking nut for bullet train track
By using high corrosion-resistant materials and multi-layer anti-corrosion coating on the self-locking nuts for EMUs, combined with the design of convex strips and waterproof layers, the problem of insufficient corrosion resistance of existing nuts is solved, and higher corrosion resistance and convenience of use are achieved.
Patent Information
- Application Number
- CN202422127084.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing nuts have limited protection when used, making it difficult to improve corrosion resistance, resulting in the surface of the nut body being easily damaged and corroded, affecting disassembly and assembly.
A corrosion-resistant self-locking nut for EMU tracks was designed, and a corrosion-resistant plate with 316L stainless steel material was used, combined with nano-fluorosilic anti-corrosion coating, galvanized anti-corrosion coating and epoxy asphalt coating to further enhance the anti-corrosion performance, and a convex strip and waterproof layer were provided on the outer end surface to improve the convenience of use and waterproof performance.
Effectively prevent corrosion of the nut body, reduce the possibility of water erosion in rainy days, improve the reliability of disassembly and assembly, and significantly improve the corrosion resistance of the device.
Smart Images

Figure CN222910508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to a corrosion-resistant self-locking nut for a motor vehicle track. Background Art
[0002] Self-locking nuts have functions such as anti-loosening and anti-vibration, and are indispensable fasteners in production. As a typical self-locking nut, pallet self-locking nuts are mainly used in the connection of structural parts in the aerospace and civil commercial fields. According to the connection position and form, they mainly include single-ear pallet self-locking nuts, double-ear pallet self-locking nuts and angle pallet self-locking nuts.
[0003] A nut is a connecting piece used in conjunction with a bolt. The bolt has an external thread and the nut body has an internal thread. Bolts and nuts are used to fasten two parts with through holes. This type of connection is called a bolt connection. Flange nuts play an important role in mechanical equipment.
[0004] The existing nuts have limited protection when in use and cannot effectively improve the corrosion resistance of the nut body, which makes the surface of the nut body easily damaged, and then easily causes corrosion to the nut body, affecting disassembly and assembly. For this reason, we propose corrosion-resistant self-locking nuts for EMU tracks to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a corrosion-resistant self-locking nut for a motor vehicle track, which can solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a corrosion-resistant self-locking nut for a motor vehicle track, comprising a main body, the upper end face of the main body being fixedly provided with a corrosion-resistant plate 1, the lower end face of the main body being fixedly provided with a corrosion-resistant plate 2, the outer end face of the main body being fixedly provided with a plurality of convex strips, the outer end face of the main body being fixedly provided with a nano-fluorosilicone anti-corrosion coating, the corrosion-resistant plates 1 and 2 being made of L stainless steel material, a waterproof layer being fixedly provided on the inner side of the nano-fluorosilicone anti-corrosion coating, and an anti-corrosion component 1 being provided on the inner side of the nano-fluorosilicone anti-corrosion coating.
[0007] Preferably, the anti-corrosion component one includes a galvanized anti-corrosion coating arranged on the inner side of the waterproof layer, the main body includes a galvanized anti-corrosion coating, an epoxy asphalt coating, a waterproof layer, and a reinforcement layer, the waterproof layer is fixedly provided with a galvanized anti-corrosion coating, and the anti-corrosion component two is arranged inside the galvanized anti-corrosion coating.
[0008] Preferably, the second anti-corrosion component includes an epoxy asphalt coating arranged on the inner side of the galvanized anti-corrosion coating, the epoxy asphalt coating is fixedly arranged on the inner side of the galvanized anti-corrosion coating, and an installation component is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating.
[0009] Preferably, the mounting assembly includes a thread groove arranged on the inner side of the nano-fluorosilicone anti-corrosion coating, the top wall of the body is provided with a thread groove, and a reinforcing assembly is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating. Preferably, the reinforcing assembly includes a reinforcing layer arranged on the inner side of the epoxy asphalt coating, and the reinforcing layer is fixedly arranged on the inner side of the epoxy asphalt coating.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The utility model arranges corrosion-resistant plate one and corrosion-resistant plate two, which can further protect the nut body and avoid corrosion of the body, thereby avoiding affecting disassembly and assembly. At the same time, the arrangement of the convex strips also facilitates users to install and disassemble the body. At the same time, the arrangement of the waterproof layer protects the body on rainy days, thereby reducing the possibility of the body being corroded by water on rainy days. The arrangement of the nano-fluorosilicone anti-corrosion coating improves the corrosion resistance of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the three-dimensional structure without convex strips of the utility model;
[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the corrosion-resistant plate of the utility model;
[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.
[0016] In the figure: 1. Main body; 2. Corrosion-resistant plate 1; 3. Corrosion-resistant plate 2; 4. Threaded groove; 5. Raised strip; 6. Epoxy asphalt coating; 7. Waterproof layer; 8. Galvanized anti-corrosion coating; 9. Nano-fluorosilicone anti-corrosion coating; 10. Reinforcement layer. DETAILED DESCRIPTION
[0017] 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.
[0018] Example 1
[0019] See also Figure 1The corrosion-resistant self-locking nut for EMU track shown in the figure includes a body 1, which is characterized in that: a corrosion-resistant plate 2 is fixedly provided on the upper end surface of the body 1, a corrosion-resistant plate 2 is fixedly provided on the lower end surface of the body 1, a plurality of convex strips 5 are fixedly provided on the outer end surface of the body 1, a nano-fluorosilicone anti-corrosion coating 9 is fixedly provided on the outer end surface of the body 1, the corrosion-resistant plate 2 and the corrosion-resistant plate 2 3 are made of 316L stainless steel material, a waterproof layer 7 is fixedly provided on the inner side of the nano-fluorosilicone anti-corrosion coating 9, and an anti-corrosion component 1 is provided on the inner side of the nano-fluorosilicone anti-corrosion coating 9.
[0020] See also Figure 4 In the figure, the anti-corrosion component 1 includes a galvanized anti-corrosion coating 8 arranged on the inner side of the waterproof layer 7, the main body 1 includes the galvanized anti-corrosion coating 8, the epoxy asphalt coating 6, the waterproof layer 7, and the reinforcement layer 10. The galvanized anti-corrosion coating 8 is fixedly arranged on the inner side of the waterproof layer 7, and the anti-corrosion component 2 is arranged inside the galvanized anti-corrosion coating 8.
[0021] In this embodiment: the galvanized anti-corrosion coating 8 is provided. The galvanized anti-corrosion coating 8 can provide excellent protection for the metal surface through cathodic protection and shielding protection. Even in extremely harsh corrosive environments, the galvanized anti-corrosion coating 8 can still sacrifice itself for a long time to protect the metal surface.
[0022] Working principle: The device is convenient for users to install the main body 1 through the convex strip 5. At the same time, the corrosion-resistant plate 1 2 and the corrosion-resistant plate 2 3 can further protect the main body 1 to avoid corrosion of the main body 1, thereby avoiding affecting the disassembly and assembly. At the same time, the setting of the waterproof layer 7 protects the main body on rainy days, thereby reducing the possibility of the main body 1 being corroded by water on rainy days. The setting of the nano-fluorosilicone anti-corrosion coating 9 can significantly improve the corrosion resistance of the material, including acid and alkali resistance, salt spray resistance, etc., thereby protecting the substrate from corrosion by chemical substances. At the same time, the setting of the epoxy asphalt coating 6, the epoxy asphalt coating 6 exhibits excellent anti-corrosion performance through its special formula and construction process. It can effectively resist the erosion of moisture, acid and alkali, salt water and microorganisms, and protect the substrate from corrosion. This coating is particularly suitable for various application scenarios such as the outer wall anti-corrosion of oil, gas and water pipelines, the anti-corrosion of sewage treatment pools, and the anti-corrosion of coal mine shaft frames. At the same time, the epoxy asphalt coating 6 also has excellent durability and fatigue resistance. At the same time, the reinforcement layer 10 adopts carbon steel, thereby improving the structural strength of the device.
[0023] Example 2
[0024] See also Figure 4 This embodiment further explains Example 1. The anti-corrosion components in the figure include an epoxy asphalt coating 6 and an epoxy asphalt coating 6 arranged on the inner side of the galvanized anti-corrosion coating 8. The epoxy asphalt coating 6 is fixedly arranged on the inner side of the galvanized anti-corrosion coating 8, and an installation component is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating 9.
[0025] In this embodiment: the nano-fluorosilicone anti-corrosion coating 9 is provided, and the nano-fluorosilicone anti-corrosion coating 9 can significantly improve the corrosion resistance of the material, including acid and alkali resistance, salt spray resistance, etc., thereby protecting the substrate from corrosion by chemical substances.
[0026] See also Figure 4 In the figure, the installation component includes a thread groove 4 arranged on the inner side of the nano-fluorosilicone anti-corrosion coating 9, the top wall of the body 1 is provided with a thread groove 4, and a reinforcement component is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating 9.
[0027] In this embodiment, the thread groove 4 is provided to facilitate the user to install the body 1 .
[0028] See also Figure 4 In the figure, the reinforcement component includes a reinforcement layer 10 arranged on the inner side of the epoxy asphalt coating 6, and the reinforcement layer 10 is fixedly arranged on the inner side of the epoxy asphalt coating 6.
[0029] In this embodiment: the setting of the epoxy asphalt coating 6, the epoxy asphalt coating 6 exhibits excellent anti-corrosion performance through its special formula and construction process. It can effectively resist the erosion of moisture, acid, alkali, salt water and microorganisms, and protect the substrate from corrosion. This coating is particularly suitable for various application scenarios such as the anti-corrosion of the outer walls of oil, gas and water pipelines, the anti-corrosion of sewage treatment pools, and the anti-corrosion of coal mine shaft frames. At the same time, the epoxy asphalt coating 6 also has excellent durability and fatigue resistance. At the same time, the reinforcement layer 10 adopts carbon steel, thereby improving the structural strength of the device.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.
[0031] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A corrosion-resistant self-locking nut for a motor vehicle track, comprising a body (1), characterized in that: The upper end surface of the body (1) is fixedly provided with a corrosion-resistant plate 1 (2), the lower end surface of the body (1) is fixedly provided with a corrosion-resistant plate 2 (3), the outer end surface of the body (1) is fixedly provided with a plurality of convex strips (5), the outer end surface of the body (1) is fixedly provided with a nano-fluorosilicone anti-corrosion coating (9), the corrosion-resistant plate 1 (2) and the corrosion-resistant plate 2 (3) are made of 316L stainless steel material, the inner side of the nano-fluorosilicone anti-corrosion coating (9) is fixedly provided with a waterproof layer (7), and the inner side of the nano-fluorosilicone anti-corrosion coating (9) is provided with an anti-corrosion component 1.
2. The corrosion-resistant self-locking nut for motor vehicle track according to claim 1, characterized in that: The anti-corrosion component 1 includes a galvanized anti-corrosion coating (8) arranged on the inner side of the waterproof layer (7); the main body (1) includes a galvanized anti-corrosion coating (8), an epoxy asphalt coating (6), a waterproof layer (7), and a reinforcing layer (10); the galvanized anti-corrosion coating (8) is fixedly arranged on the inner side of the waterproof layer (7); and the anti-corrosion component 2 is arranged inside the galvanized anti-corrosion coating (8).
3. The corrosion-resistant self-locking nut for motor vehicle track according to claim 2, characterized in that: The second anti-corrosion component comprises an epoxy asphalt coating (6) arranged on the inner side of the galvanized anti-corrosion coating (8), the epoxy asphalt coating (6) is fixedly arranged on the inner side of the galvanized anti-corrosion coating (8), and a mounting component is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating (9).
4. The corrosion-resistant self-locking nut for motor vehicle track according to claim 3, characterized in that: The mounting assembly comprises a thread groove (4) arranged on the inner side of the nano-fluorosilicone anti-corrosion coating (9), the top wall of the body (1) is provided with the thread groove (4), and a reinforcing assembly is arranged on the inner side of the nano-fluorosilicone anti-corrosion coating (9).
5. The corrosion-resistant self-locking nut for motor vehicle track according to claim 4, characterized in that: The reinforcement component comprises a reinforcement layer (10) arranged on the inner side of the epoxy asphalt coating (6), and the reinforcement layer (10) is fixedly arranged on the inner side of the epoxy asphalt coating (6).