Hardware part with anti-corrosion function
By employing a fastener-free connection design and a multi-layered anti-corrosion barrier, the problems of easy corrosion of hardware parts and cumbersome disassembly are solved, enabling rapid installation and disassembly, and improving corrosion resistance and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN SHENGJIAYUE PRECISION TECH CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional hardware connection methods are prone to failure due to the penetration of corrosive media or accelerated corrosion due to material mismatch. Furthermore, disassembly and reassembly are cumbersome and difficult to install and disassemble quickly.
The fastener-free connection design utilizes an outer layer combining a zinc-aluminum alloy coating and a nano-modified epoxy resin coating, and an inner layer combining a nickel-phosphorus alloy chemical plating and a polytetrafluoroethylene microporous coating. Combined with a sliding connection fixing plate, an arc-shaped limiting block, and a return spring, it enables rapid installation and disassembly of parts.
It effectively prevents the penetration of corrosive media, improves corrosion resistance, simplifies the operation process, improves work efficiency, ensures stability and reusability, and adapts to different installation environments.
Smart Images

Figure CN224120482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware parts technology, specifically to a hardware part with anti-corrosion function. Background Technology
[0002] Hardware parts are workpieces made of metal through processing and casting. They are mainly used for fixing, processing and decoration. Hardware parts are generally made by alloying, which can greatly increase the hardness of hardware parts.
[0003] Traditional hardware assembly often relies on fasteners such as bolts and nuts, or welding for connection. In the application of corrosion-resistant parts, these connection methods may lead to connection failure due to the penetration of corrosive media, or accelerate corrosion due to material mismatch at the connection points. In addition, these connection methods are often cumbersome to disassemble and reassemble, which is not conducive to the need for quick installation and disassembly. Utility Model Content
[0004] The purpose of this utility model is to provide a hardware part with anti-corrosion function, so as to solve the problem mentioned in the background art that traditional hardware parts often rely on fasteners such as bolts and nuts, or welding for connection. In the application of anti-corrosion parts, these connection methods may lead to connection failure due to the penetration of corrosive media, or accelerate corrosion due to the mismatch of materials at the connection parts. In addition, these connection methods are often cumbersome to disassemble and reassemble, which is not conducive to the need for quick installation and disassembly.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hardware part with anti-corrosion function, comprising a part body one and a part body two, wherein an outer layer and an inner layer are fixedly connected to the outer and inner surfaces of the part body one and the part body two, respectively; a side frame one and a side frame two are fixedly connected to both sides of the part body one and the part body two, respectively; a movable groove is provided at the bottom position on both sides of the side frame one and the side frame two; a fixed groove is provided on both sides of the top of the side frame one and the side frame two; a fixed plate is slidably connected inside the movable groove; the bottom of the fixed plate located inside the side frame one penetrates into the fixed groove located at the top of the side frame two and engages with the fixed groove; a movable groove two is provided inside the side frame one and the side frame two corresponding to the movable groove; and a movable groove one is provided inside the side frame one and the side frame two corresponding to the fixed groove.
[0006] Compared with the prior art, the beneficial effects of this utility model are:
[0007] This corrosion-resistant hardware component utilizes a uniquely designed side frame 1, side frame 2, and a sliding connection fixing plate to achieve a fastener-free connection between component body 1 and component body 2. This connection method avoids connection failure caused by the penetration of corrosive media due to bolts, nuts, and other fasteners, while also reducing the risk of accelerated corrosion due to material incompatibility. The outer layer uses a combination of zinc-aluminum alloy plating and nano-modified epoxy resin coating, while the inner layer uses a combination of nickel-phosphorus alloy chemical plating and polytetrafluoroethylene microporous coating, together forming a multi-layered anti-corrosion barrier that effectively improves the overall corrosion resistance of the component. The push block design allows users to easily slide the fixing plate within the moving groove, enabling quick installation and removal of the component. Compared to traditional bolted or welded connections, this fastener-free connection method greatly simplifies the operation process and improves work efficiency. The coordinated design of the arc-shaped limiting block 1, arc-shaped limiting block 2, and arc-shaped limiting groove ensures the stability of the fixing plate during sliding and provides clear installation positioning indicators, avoiding connection failure due to improper installation. The setting of return spring 1 and return spring 2 allows the arc-shaped limiting block 1 and arc-shaped limiting block 2 to automatically reset when subjected to external force, thereby ensuring the reusability of the fixing plate after disassembly. The snap-fit design of the support rod and the support groove not only provides additional connection stability but also allows the parts to be finely adjusted within a certain range to adapt to different installation environments and needs. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of this utility model;
[0009] Figure 2 This utility model Figure 1 A magnified view of part A in the diagram;
[0010] Figure 3 This is a cross-sectional view of the outer layer of this utility model;
[0011] Figure 4 This is a cross-sectional view of the inner layer of this utility model.
[0012] In the diagram: 1. Part Body 1; 2. Part Body 2; 3. Outer Layer; 4. Inner Layer; 5. Zinc-Aluminum Alloy Coating; 6. Nano-Modified Epoxy Resin Coating; 7. Nickel-Phosphorus Alloy Chemical Plating; 8. Polytetrafluoroethylene Microporous Coating; 9. Side Frame 1; 10. Side Frame 2; 11. Moving Slot; 12. Fixing Slot; 13. Fixing Plate; 14. Arc-Shaped Limiting Slot; 15. Push Block; 16. Support Slot; 17. Support Rod; 18. Movable Slot 1; 19. Movable Block 1; 20. Arc-Shaped Limiting Block 1; 21. Return Spring 1; 22. Movable Slot 2; 23. Movable Block 2; 24. Arc-Shaped Limiting Block 2; 25. Return Spring 2. Detailed Implementation
[0013] 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.
[0014] Please see Figure 1-4 This utility model provides a technical solution: a hardware part with anti-corrosion function, including a part body 1 and a part body 2. The outer surface and inner surface of the part body 1 and the part body 2 are respectively fixedly connected to an outer layer 3 and an inner layer 4. The two sides of the part body 1 and the two sides of the part body 2 are respectively fixedly connected to a side frame 9 and a side frame 2 10. The bottom of the two sides of the side frame 9 and the side frame 2 10 are provided with a moving groove 11. The top of the side frame 9 and the side frame 2 10 are provided with a fixing groove 12. The moving groove 11 is slidably connected to a fixing plate 13. The bottom of the fixing plate 13 located in the side frame 9 extends through to the inside of the fixing groove 12 located in the top of the side frame 2 10 and is engaged with the fixing groove 12. The side frame 9 and the side frame 2 10 are provided with a movable groove 22 on one side corresponding to the moving groove 11. The side frame 9 and the side frame 2 10 are provided with a movable groove 18 on one side corresponding to the fixing groove 12.
[0015] The outer layer 3 includes a zinc-aluminum alloy coating 5 and a nano-modified epoxy resin coating 6, with the zinc-aluminum alloy coating 5 disposed on the outside of the nano-modified epoxy resin coating 6.
[0016] The inner layer 4 includes a nickel-phosphorus alloy electroless plating layer 7 and a polytetrafluoroethylene microporous coating 8, with the polytetrafluoroethylene microporous coating 8 disposed on the inner side of the nickel-phosphorus alloy electroless plating layer 7.
[0017] Push blocks 15 are fixedly connected to one side of the two fixed plates 13 set at the top and bottom, and one side of the two push blocks 15 set at the top and bottom respectively extends through to the outside of the side frame 9 and the side frame 10.
[0018] Movable blocks 19 and 23 are slidably connected inside movable slot 18 and movable slot 22, respectively. Arc-shaped limiting block 10 and arc-shaped limiting block 24 are fixedly connected to one side of movable block 19 and movable block 23, respectively.
[0019] An arc-shaped limiting groove 14 is provided on one side of the fixed plate 13 near the bottom. The side of the side frame 10 with the arc-shaped limiting block 24 at the top extends into the arc-shaped limiting groove 14 and engages with the arc-shaped limiting groove 14.
[0020] On the other side of movable block 19 and movable block 23, reset spring 121 and reset spring 25 are fixedly connected respectively. One side of reset spring 121 and reset spring 25 are fixedly connected to the inner wall of movable groove 18 and movable groove 22 respectively.
[0021] A support groove 16 is provided at the center of the top of the fixed plate 13. A support rod 17 is fixedly connected to the center of the top of the movable groove 11. The bottom of the support rod 17 passes through the interior of the support groove 16 and is engaged with the support groove 16.
[0022] Working principle: Movable grooves 11 are provided at the bottom of both side frame 1 (9) and side frame 2 (10) to accommodate the sliding of the fixed plate 13. The fixed plate 13 slides within the movable grooves 11. When the fixed plate 13 slides to the appropriate position, its bottom will penetrate into the fixed groove 12 at the top of side frame 2 (10) and engage with it, achieving initial connection and fixation. Inside side frame 1 (9) and side frame 2 (10), corresponding to the positions of movable grooves 11 and 22, movable blocks 1 (19) and 2 (23) are slidably connected, respectively. Arc-shaped limiting blocks 1 (20) and 2 (24) are fixedly connected to one side of each of the movable blocks 19 and 23, respectively, to further stabilize the position of the fixed plate 13. When the fixed plate 13 slides into place and engages with the fixed groove 12, the arc... The second locating block 24 penetrates into the arc-shaped locating groove 14 on one side of the fixed plate 13 and engages with the arc-shaped locating groove 14, providing additional fixing force. The other side of the arc-shaped locating block 20 and the second locating block 24 are respectively fixedly connected to the return spring 21 and the return spring 25. The presence of the return springs allows the arc-shaped locating blocks to automatically reset when subjected to external force, maintaining a stable engagement state. At the center of the top of the fixed plate 13, a support groove 16 is provided to accommodate the support rod 17 fixedly connected to the top center of the moving groove 11. When the fixed plate 13 slides into place and engages with the fixed groove 12, the bottom of the support rod 17 penetrates into the support groove 16 and engages with the support groove 16, providing additional vertical support force and further stabilizing the connection state of the parts.
[0023] In summary, this corrosion-resistant hardware part, through the unique design of side bracket 1 (9), side bracket 2 (10), and sliding connection fixing plate 13, achieves a fastener-free connection between part body 1 (1) and part body 2 (2). This connection method avoids connection failure caused by the penetration of corrosive media due to bolts, nuts, and other fasteners, while reducing the risk of accelerated corrosion due to material incompatibility. The combination of zinc-aluminum alloy plating 5 and nano-modified epoxy resin coating 6 in the outer layer 3, and the combination of nickel-phosphorus alloy chemical plating 7 and polytetrafluoroethylene microporous coating 8 in the inner layer 4, together constitute a multi-layered anti-corrosion barrier, effectively improving the overall anti-corrosion performance of the part. Through the design of the push block 15, users can easily push the fixing plate 13 to slide within the moving groove 11, realizing quick installation and disassembly of the part. Compared to traditional bolted or welded connections, this fastener-free connection method greatly simplifies the operation process and improves work efficiency. The coordinated design of the arc-shaped limiting block 10, arc-shaped limiting block 24, and arc-shaped limiting groove 14 ensures the stability of the fixing plate 13 during sliding and provides clear installation positioning indicators, avoiding connection failure due to improper installation. The setting of the return spring 11 and return spring 25 allows the arc-shaped limiting block 10 and arc-shaped limiting block 24 to automatically reset when subjected to external force, thereby ensuring the reusability of the fixing plate 13 after disassembly. The snap-fit design of the support rod 17 and the support groove 16 not only provides additional connection stability but also allows the parts to be finely adjusted within a certain range to adapt to different installation environments and needs.
[0024] 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 process, method, article, or apparatus.
[0025] 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 hardware part with anti-corrosion function, comprising part body one (1) and part body two (2), characterized in that: The outer and inner surfaces of the first part body (1) and the second part body (2) are respectively fixedly connected with an outer layer (3) and an inner layer (4). The two sides of the first part body (1) and the two sides of the second part body (2) are respectively fixedly connected with a side frame (9) and a side frame (10). The bottom of the inner sides of the side frame (9) and the side frame (10) are provided with a moving groove (11). The top sides of the side frame (9) and the side frame (10) are provided with a fixing groove (12). A fixed plate (13) is slidably connected inside the groove (11). The bottom of the fixed plate (13) located inside the side frame one (9) extends through to the inside of the fixed groove (12) opened at the top of the side frame two (10) and engages with the fixed groove (12). The side frame one (9) and the side frame two (10) have a movable groove two (22) on one side corresponding to the movable groove (11). The side frame one (9) and the side frame two (10) have a movable groove one (18) on one side corresponding to the fixed groove (12).
2. A hardware part with anti-corrosion function according to claim 1, characterized in that: The outer layer (3) includes a zinc-aluminum alloy coating (5) and a nano-modified epoxy resin coating (6), wherein the zinc-aluminum alloy coating (5) is disposed on the outside of the nano-modified epoxy resin coating (6).
3. A hardware part with anti-corrosion function according to claim 1, characterized in that: The inner layer (4) includes a nickel-phosphorus alloy electroless plating layer (7) and a polytetrafluoroethylene microporous coating (8), wherein the polytetrafluoroethylene microporous coating (8) is disposed on the inner side of the nickel-phosphorus alloy electroless plating layer (7).
4. A hardware part with anti-corrosion function according to claim 1, characterized in that: Push blocks (15) are fixedly connected to one side of the two fixed plates (13) set at the top and bottom. One side of the two push blocks (15) set at the top and bottom respectively extends through to the outside of the side frame one (9) and the side frame two (10).
5. A hardware part with anti-corrosion function according to claim 1, characterized in that: The interior of the first movable groove (18) and the second movable groove (22) are respectively slidably connected to the first movable block (19) and the second movable block (23). The first movable block (19) and the second movable block (23) are respectively fixedly connected to one side of the first movable block (19) and the second movable block (23).
6. A hardware part with anti-corrosion function according to claim 1 or 5, characterized in that: An arc-shaped limiting groove (14) is provided on one side of the fixed plate (13) near the bottom. The side of the side frame two (10) with an arc-shaped limiting block two (24) is provided on the top and extends into the arc-shaped limiting groove (14) and engages with the arc-shaped limiting groove (14).
7. A hardware part with anti-corrosion function according to claim 5, characterized in that: The other side of the movable block 1 (19) and movable block 2 (23) are respectively fixedly connected to the reset spring 1 (21) and reset spring 2 (25), and one side of the reset spring 1 (21) and reset spring 2 (25) are respectively fixedly connected to the inner wall of the movable groove 1 (18) and movable groove 2 (22).
8. A hardware part with anti-corrosion function according to claim 1, characterized in that: The fixed plate (13) has a support groove (16) at the center of its top. A support rod (17) is fixedly connected to the center of the top of the movable groove (11). The bottom of the support rod (17) extends through the inside of the support groove (16) and engages with the support groove (16).