Hanging bracket for Dacromet post-dipping paint of elastic strip
By designing a hanger structure and utilizing the longitudinal oscillation of thin strips to reduce the torque and friction of the spring clip during the paint impregnation process, the problem of poor wear resistance of Dacromet coating is solved, and the corrosion resistance of the spring clip is improved.
Patent Information
- Application Number
- CN202422674549.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The Dacromet coating has poor wear resistance and is easily damaged under high torque or strong friction, affecting the anti-corrosion effect of the spring clip.
Design a hanger structure including a hook rod, a hanger frame, thin strips, and a spring hook. The hanger frame consists of horizontal and vertical bars. The thin strips can swing longitudinally under external force. The force is transmitted through the spring hook to reduce torque and friction, thus protecting the Dacromet coating.
This effectively avoids the generation of large torque and strong friction during the paint impregnation process of the spring clip, protects the Dacromet coating, and improves the corrosion resistance of the spring clip.
Smart Images

Figure CN223970315U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dip-coating hanger technology, and more specifically to a hanger for post-dip coating of elastic clips with Dacromet coating. Background Technology
[0002] The elastic rails generate clamping force on the track through bending and twisting deformation, which effectively ensures the reliable connection between the rails in the long term, maintains the integrity of the track as much as possible, prevents the rails from moving longitudinally and laterally relative to the sleepers, ensures the normal track gauge, and thus ensures the safety of rail vehicles.
[0003] The material of the bullet clip is steel. After being used on railways, it is exposed for a long time. Since steel is prone to rust, the bullet clip needs to be treated with a variety of anti-corrosion methods, one of which is Dacromet.
[0004] Dacromet is a transliteration and abbreviation of DACROMET, also known as Dacromet rust or Dacromet Dragon. Domestically, it's called zinc-chromium coating, a water-based anti-corrosion coating primarily composed of zinc powder, aluminum powder, chromic acid, and deionized water. The anti-corrosion layer formed by Dacromet coating has advantages such as superior corrosion resistance, no brittleness, high heat resistance, and minimal construction pollution. Dacromet coatings are widely used in engineering projects.
[0005] However, Dacromet coatings have poor abrasion resistance and can be damaged under high torque or strong friction. Therefore, a protective layer is often applied over Dacromet coatings. Due to the environmentally friendly nature of water-based paints, they are currently the most widely used protective coating after Dacromet.
[0006] After the spring clips are treated with Dacromet, the hanger is crucial during the process of dipping them in water-based paint. Utility Model Content
[0007] In view of this, this application provides a hanger for Dacromet coating of spring clips. After the spring clips are treated with Dacromet, they are suspended on the hanger and coated with water-based paint. This effectively avoids the spring clips from generating torque and strong friction, which would damage the Dacromet coating and improve the anti-corrosion effect of the spring clips.
[0008] According to one aspect of this application, one embodiment provides a hanger for post-dip coating of elastic clips with Dacromet coating, including a hook rod, a hanging frame, thin strips, and elastic clip hooks. The hanging frame is a rectangular frame composed of several parallel and equidistant horizontal bars and two vertical bars fixedly connected to the ends of all the horizontal bars. The top of the hook rod is a hook, and the bottom of the hook rod is fixedly connected to the center of the hanging frame. Each horizontal bar of the hanging frame is connected to a thin strip of the same length as the horizontal bar. The thin strip can swing longitudinally under the action of external force. Each thin strip has several hook holes equidistantly opened, and the elastic clip hooks are hung in the hook holes and the elastic clips are hung below.
[0009] In some embodiments, the horizontal and vertical bars of the hanging frame are hollow tubes, either rectangular or round, to reduce the weight of the hanging frame.
[0010] In some embodiments, a pair of diagonal braces are provided between the lifting frame and the hook rod. The pair of diagonal braces has two diagonal braces, which are symmetrically arranged on both sides of the hook rod to enhance the strength between the lifting frame and the hook rod.
[0011] In some embodiments, the hanging frame is provided with an odd number of pairs of parallel diagonal braces, and an upper crossbeam is provided at the top of the odd number of pairs of diagonal braces. The upper crossbeam crosses through the hook rod, and the position where the hook rod intersects with the upper crossbeam is the center of the upper crossbeam, which is also located directly above the center of the hanging frame, so as to strengthen the rigidity between the hanging frame and the hook rod, and at the same time enhance the rigidity of the hanging frame itself.
[0012] In some embodiments, the hook holes on the thin strip are one of the following: triangular, circular, elliptical, and semi-circular.
[0013] In some embodiments, the spacing between the hook holes on the thin strip is 1.2-2 times the length of the spring strip.
[0014] In some embodiments, the spring hook is S-shaped or C-shaped.
[0015] In some embodiments, thin strips of the same length as the longitudinal bars at both ends of the hanging frame are also provided below the longitudinal bars to protect the thin strips on the crossbars.
[0016] In practical use, the hanger of this utility model for Dacromet coating of elastic clips is suspended on a water-based paint dipping production line.
[0017] Each of this utility model discloses a hanger for post-Dacrod coating of elastic clips, wherein an elastic clip is suspended on a clip hook. As the hanger moves forward, the clip is immersed in water-based paint. Because a thin plate is provided on the hanger, the thin plate can swing longitudinally under the action of external force. That is to say, during the process of water-based paint coating, as the hanger moves forward, the water-based paint provides resistance to the clip. The clip transmits this force to the thin plate through the clip hook, causing the thin plate to swing longitudinally to counteract the force. Thus, after the clip receives resistance, it avoids generating large torque and strong friction, effectively protecting the Dacromet coating on the clip, thereby improving the clip's corrosion resistance.
[0018] The beneficial effects of this utility model are as follows:
[0019] This utility model discloses a hanger for Dacromet coating post-dipping of spring clips. The hanger is equipped with a thin plate to prevent large torque and strong friction during the dipping process, effectively protecting the Dacromet coating on the spring clip and thus improving the corrosion resistance of the spring clip.
[0020] This utility model provides a hanger for Dacromet coating of elastic springs, which is rigid and prevents collisions and friction between the springs, effectively avoiding quality problems caused by the collision of the springs. Attached Figure Description
[0021] Figure 1 This is a side view of the structure of Embodiment 1 of the present utility model;
[0022] Figure 2 This is a front view structural diagram of Embodiment 1 of the present utility model;
[0023] Figure 3 This is a front view structural diagram of Embodiment 2 of the present invention;
[0024] Figure 4 This is a side view of the structure of Embodiment 3 of this utility model;
[0025] Figure 5 This is a front view structural diagram of Embodiment 3 of this utility model.
[0026] In the diagram: 1. Hook rod; 2. Hanging frame; 21. Horizontal bar; 22. Vertical bar; 3. Thin plate; 31. Hook hole; 4. Spring hook; 5. Spring bar; 6. Diagonal bar; 7. Upper crossbeam. Detailed Implementation
[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0028] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0029] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). Example
[0030] Please refer to Figure 1 and Figure 2 One embodiment provides a hanger for post-dip coating of elastic clips with Dacromet coating, including a hook rod 1, a hanging frame 2, thin strips 3, and elastic clip hooks 4. The hanging frame 2 is a rectangular frame consisting of three parallel and equidistant horizontal bars 21 and two vertical bars 22 fixedly connecting the two ends of all the horizontal bars 21. Its dimensions are 400mm × 1000mm, wherein the horizontal bars 21 and vertical bars 22 are both made of rectangular tubes with a wall thickness of 3mm and a diameter of 40mm × 60mm. The hook rod 1 is made of round steel with a diameter of 16mm. The top of the hook rod 1 is a hook, and the bottom of the hook rod 1... The part is fixedly connected to the center of the hanging frame. Each horizontal bar 21 of the hanging frame 2 is connected to a thin strip 3 of the same length as the horizontal bar 21. The thin strip 3 is made of stainless steel plate with a thickness of 0.8mm and a width of 8cm. The thin strip 3 can swing longitudinally under the action of external force. Each thin strip 3 has four hook holes 31 equidistantly opened, with a spacing of 200mm between the hook holes 31. The elastic hook 4 is made of steel wire with a diameter of 6mm bent into an S shape. The elastic hook 4 is hung in the hook hole 31 and the elastic bar 5 is hung below. Example
[0031] Please refer to Figure 3 This embodiment of the hanger for Dacromet coating of elastic clips is an improvement on the first embodiment. It adds a pair of diagonal braces 6. Each pair of diagonal braces 6 has two diagonal braces 6, which are made of round steel with a diameter of 16mm. The two diagonal braces 6 are symmetrically arranged on both sides of the hook rod 1 to connect the hanging frame 2 and the hook rod 1, thereby enhancing the strength between the hanging frame 2 and the hook rod 1. Example
[0032] Please refer to Figure 4 and Figure 5 One embodiment of the hanger for Dacromet coating of elastic bars is an improvement on embodiment two. The number of diagonal braces 6 pairs is increased to three pairs. Each pair of diagonal braces 6 pairs has two diagonal braces 6, and the three pairs of diagonal braces 6 pairs are arranged parallel to each other and equidistantly. An upper crossbeam 7 is set at the top of the three pairs of diagonal braces 6 pairs. The upper crossbeam 7 crosses through the hook rod 1. The intersection of the hook rod 1 and the upper crossbeam 7 is at the center of the upper crossbeam 7, and is located directly above the center of the hanging frame 2. The diagonal braces 6 on both sides that are not connected to the hook rod 1 are symmetrical to the middle pair of diagonal braces 6 that are connected to the hook rod 1, so as to strengthen the rigidity between the hanging frame 2 and the hook rod 1, and at the same time enhance the rigidity of the hanging frame 2 itself.
[0033] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.
Claims
1. A hanger for post-dip lacquer coating of elastic spring clips, characterized in that: It includes hook rod (1), hanging frame (2), thin plate (3) and elastic strip hook (4), the hanging frame (2) is composed of a rectangular frame with several mutually parallel equidistant horizontal rods (21) and two vertical rods (22) fixedly connected to both ends of all horizontal rods (21), the top of the hook rod (1) is a hook, the bottom of the hook rod (1) is fixedly connected to the center of the hanging frame (2), one thin plate (3) equal in length to the horizontal rod (21) is linked below each horizontal rod (21) of the hanging frame (2), the thin plate (3) can swing longitudinally under the action of external force, a plurality of hook holes (31) are equidistantly formed on each thin plate (3), the elastic strip hook (4) is hung in the hook hole (31).
2. A hanger for use with a dip strip of a Dacromet paint, according to claim 1, characterized in that: The horizontal rod (21) and the vertical rod (22) of the hanging frame (2) are hollow tubes, which are rectangular tubes or circular tubes.
3. A hanger for strip Dacromet post-dip paint as claimed in claim 1, wherein: A pair of diagonal rods (6) is arranged between the hanging frame (2) and the hook rod (1), and the pair of diagonal rods (6) has two diagonal rods (6) which are symmetrically arranged on both sides of the hook rod (1).
4. A hanger for strip dip lacquer according to claim 3, characterized in that: An odd number of pairs of parallel diagonal rods (6) are arranged on the hanging frame (2), and the top ends of the odd number of pairs of diagonal rods (6) are provided with an upper cross beam (7), the upper cross beam (7) crosses the hook rod (1), and the position where the hook rod (1) crosses the upper cross beam (7) is the center of the upper cross beam (7), which is located directly above the center of the hanging frame (2).
5. A hanger for strip dip lacquer as claimed in claim 1, wherein: The hook hole (31) on the thin plate (3) is one of a triangle, a circle, an ellipse and a semicircle.
6. A hanger for strip dip lacquer according to claim 1, characterized in that: The spacing of the hook hole (31) on the thin plate (3) is 1.2-2 times the length of the elastic strip.
7. A hanger for strip dip lacquer according to claim 1, characterized in that: The elastic strip hook (4) is S-shaped or C-shaped.
8. A hanger for strip dip lacquer according to claim 1, characterized in that: The vertical rod (22) at both ends of the hanging frame (2) is also provided with a thin plate (3) equal in length to the vertical rod (22) below.