High-strength corrosion-resistant spring

Abstract

The utility model relates to the technical field of springs, and discloses a high-strength corrosion-resistant spring which comprises a base sleeve, a first limiting ring is fixedly connected to the bottom of an inner cavity of the base sleeve, a spring body is inserted into the first limiting ring in a sliding mode, and two symmetrical sliding grooves are formed in the inner wall of the base sleeve. Through the sliding fit of the insertion cylinder and the base sleeve and the limiting guide structure, the spring keeps stable axial movement in the compression and rebound process, and offset clamping stagnation is avoided; the spring material formed by combining the nickel-based high-temperature alloy base layer, the nano-ceramic stress relieving layer and the PVD anti-corrosion coating is adopted, so that the strength and the corrosion resistance are improved; the base sleeve and the insertion cylinder are made of 316L stainless steel base materials, and are matched with the POM buffer layer and the PTFE coating to form a three-layer composite structure with high strength and corrosion resistance; a sliding clamping block is matched with a sliding groove to improve guiding stability, and a liquid permeating opening is formed to facilitate liquid drainage and corrosion prevention; the assembly structure is detachable and convenient to maintain and replace, and the durability and adaptability of the device are integrally enhanced.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, specifically a high-strength corrosion-resistant spring. Background Technology

[0002] A spring is a mechanical component that utilizes the elastic deformation capacity of a material to deform under external force and return to its original shape after the force is removed. It is commonly used for energy storage, buffering, vibration absorption, force transmission, or adjusting the position of mechanical parts.

[0003] Existing spring devices are widely used in mechanical buffering, load adjustment, and elastic recovery, especially in high-intensity and corrosive environments where higher performance requirements are placed on them. Traditional spring structures generally use ordinary carbon steel or stainless steel, which, although possessing a certain mechanical strength, are prone to elastic fatigue, structural loosening, jamming, or corrosion under conditions of strong corrosion, high load, or frequent compression, leading to a shortened overall service life.

[0004] Therefore, it is necessary to design a high-strength, corrosion-resistant spring to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength, corrosion-resistant spring to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength corrosion-resistant spring, comprising a base sleeve, a first limiting ring fixedly connected to the bottom of the inner cavity of the base sleeve, a spring body slidably inserted into the inner cavity of the first limiting ring, two symmetrical sliding grooves formed on the inner wall of the base sleeve, an insert slidably inserted into the inner cavity of the base sleeve, two symmetrical sliding blocks fixedly connected to the outer surface of the insert, the two sliding blocks being slidably inserted into the inner cavity of the two sliding grooves respectively, two symmetrical positioning screws threaded into the outer surface of the base sleeve, a second limiting ring fixedly connected to the top of the inner cavity of the insert, the top end of the spring body slidably inserted into the inner cavity of the second limiting ring, the base sleeve and the insert being provided with a base material layer, a buffer layer and an anti-corrosion layer from the inside out, the spring body being provided with a spring base layer, a stress-relieving layer and an anti-corrosion coating from the inside out, multiple liquid permeable ports formed at the bottom of the base sleeve, and a sealing ring fixedly connected to the top of the base sleeve.

[0007] Preferably, the spring base layer is made of nickel-based high-temperature alloy, and the stress-relieving layer covers the outer surface of the spring base layer. The stress-relieving layer is made of nano-ceramic material, and the anti-corrosion coating is applied to the outer surface of the stress-relieving layer. The anti-corrosion coating is made of PVD ceramic film.

[0008] Preferably, the substrate layer is made of 316L stainless steel, the buffer layer is embedded inside the substrate layer and is made of POM engineering plastic gasket, and the anti-corrosion layer is coated on the outer surface of the substrate layer and is made of PTFE coating.

[0009] Preferably, the two ends of the spring body are respectively attached to the top of the insert and the bottom of the base sleeve, and the top and bottom of the outer surface of the spring body are respectively attached to the second limiting ring and the first limiting ring.

[0010] Preferably, the bottom end of the insert is slidably inserted into the inside of the sealing ring, and the outer surface of the insert is in contact with the inner wall of the sealing ring.

[0011] Preferably, one side of the sliding block has an arc-shaped surface, and the outer surface of the sliding block is in contact with the inside of the groove.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention utilizes a sliding fit between the insert and the base sleeve, along with a limiting and guiding structure, to ensure stable axial movement of the spring during compression and rebound, preventing offset and jamming. The spring material, combining a nickel-based high-temperature alloy base layer, a nano-ceramic stress-relieving layer, and a PVD anti-corrosion coating, enhances strength and corrosion resistance. The base sleeve and insert are made of 316L stainless steel, combined with a POM buffer layer and a PTFE coating, forming a high-strength, corrosion-resistant three-layer composite structure. The sliding block and groove enhance guiding stability, and a liquid-permeable port facilitates drainage and corrosion prevention. The component structure is detachable for easy maintenance and replacement, significantly improving the overall durability and adaptability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the base sleeve structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the spring material structure of this utility model;

[0017] Figure 4 This is a schematic diagram showing the material structure of the base sleeve and insert of this utility model;

[0018] In the diagram: 1. Base sleeve; 2. Sealing ring; 3. Insert; 4. Positioning screw; 5. Sliding block; 6. Spring; 7. First limiting ring; 8. Liquid inlet; 9. Second limiting ring; 10. Slide groove; 11. Substrate layer; 12. Buffer layer; 13. Anti-corrosion layer; 14. Spring base layer; 15. Stress relief layer; 16. Anti-corrosion coating. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Please see Figure 1-4 This utility model provides a high-strength corrosion-resistant spring, including a base sleeve 1. A first limiting ring 7 is fixedly connected to the bottom of the inner cavity of the base sleeve 1, and a spring body 6 is slidably inserted into the first limiting ring 7. Two symmetrical sliding grooves 10 are formed on the inner wall of the base sleeve 1, and a plug cylinder 3 is slidably inserted into the inner cavity of the base sleeve 1. Two symmetrical sliding blocks 5 are fixedly connected to the outer surface of the plug cylinder 3, and the two sliding blocks 5 are respectively slidably inserted into the two sliding grooves 10. Two symmetrical positioning screws 4 are threaded into the outer surface of the base sleeve 1. A second limiting ring 9 is fixedly connected to the top of the inner cavity of the plug cylinder 3, and the top end of the spring body 6 is slidably inserted into the second limiting ring 9. The base sleeve 1 and the plug cylinder 3 are provided with a base material layer 11, a buffer layer 12, and an anti-corrosion layer 13 from the inside out. The spring body 6 is provided with a spring base layer 14 and a stress-relieving layer from the inside out. The base sleeve 1 has a layer 15 and an anti-corrosion coating 16, and the bottom of the base sleeve 1 has multiple liquid inlets 8. The top of the base sleeve 1 is fixed with a sealing ring 2. The spring body 6 is sleeved between the insert 3 and the base sleeve 1, and the extension and retraction of the insert 3 is stabilized by the sliding of two sliding blocks 5 inside the two sliding grooves 10. The extension position of the insert 3 can be limited by the insertion of two positioning screws 4 to prevent the insert 3 from derailing. The design of the insert 3 and the base sleeve 1 can effectively protect the spring body 6 by utilizing its elasticity. The materials of the base sleeve 1 and the insert 3 can increase the overall corrosion resistance. The multiple liquid inlets 8 at the bottom of the insert 3 can also improve the discharge of liquid entering the interior. In addition, the material of the spring body 6 itself can also improve the strength of use, and it can be easily replaced when the strength decreases. This improves the strength, corrosion resistance and service life of the entire spring device.

[0022] In order to improve the strength of the spring body 6 by means of materials, the spring base layer 14 is made of nickel-based high-temperature alloy, and the stress relief layer 15 covers the outer surface of the spring base layer 14. The stress relief layer 15 is made of nano-ceramic, and the anti-corrosion coating 16 is coated on the outer surface of the stress relief layer 15. The anti-corrosion coating 16 is made of PVD ceramic film.

[0023] To improve the corrosion resistance of the base sleeve 1 and the insert 3, the base material 11 is made of 316L stainless steel, the buffer layer 12 is embedded inside the base material 11 and is made of POM engineering plastic gasket, and the anti-corrosion layer 13 is coated on the outer surface of the base material 11 and is made of PTFE coating.

[0024] In order to ensure that the elastic contraction of the spring body 6 is smooth, the two ends of the spring body 6 are respectively attached to the top of the insert 3 and the bottom of the base sleeve 1, and the top and bottom of the outer surface of the spring body 6 are respectively attached to the second limiting ring 9 and the first limiting ring 7.

[0025] Furthermore, in order to improve the sealing performance at the connection between the insert 3 and the base sleeve 1 during elastic sliding, the bottom end of the insert 3 is slidably inserted into the inside of the sealing ring 2, and the outer surface of the insert 3 is in contact with the inner wall of the sealing ring 2.

[0026] Furthermore, in order to improve the stability of the insert 3 during elastic sliding, an arc-shaped surface is provided on one side of the sliding block 5, and the outer surface of the sliding block 5 is in contact with the interior of the sliding groove 10.

[0027] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0029] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A high-strength corrosion-resistant spring, comprising a base sleeve (1), characterized in that: A first limiting ring (7) is fixedly connected to the bottom of the inner cavity of the base sleeve (1), and a spring body (6) is slidably inserted into the inside of the first limiting ring (7). Two symmetrical sliding grooves (10) are opened on the inner wall of the base sleeve (1), and a tube (3) is slidably inserted into the inside of the base sleeve (1). Two symmetrical sliding blocks (5) are fixedly connected to the outer surface of the tube (3). The two sliding blocks (5) are slidably inserted into the two sliding grooves (10) respectively. Two symmetrical positioning screws (4) are threaded into the outer surface of the base sleeve (1). The top of the inner cavity of the insert (3) is fixedly connected to a second limiting ring (9), and the top of the spring body (6) is slidably inserted into the inside of the second limiting ring (9). The base sleeve (1) and the insert (3) are provided with a base material layer (11), a buffer layer (12) and an anti-corrosion layer (13) from the inside out. The spring body (6) is provided with a spring base layer (14), a stress relief layer (15) and an anti-corrosion coating (16) from the inside out. The bottom of the base sleeve (1) is provided with multiple liquid permeable ports (8), and the top of the base sleeve (1) is fixedly connected to a sealing ring (2).

2. The high-strength corrosion-resistant spring according to claim 1, characterized in that: The spring base layer (14) is made of nickel-based high-temperature alloy, and the stress relief layer (15) covers the outer surface of the spring base layer (14). The stress relief layer (15) is made of nano-ceramic. The anti-corrosion coating (16) is coated on the outer surface of the stress relief layer (15). The anti-corrosion coating (16) is made of PVD ceramic film.

3. The high-strength corrosion-resistant spring according to claim 1, characterized in that: The substrate layer (11) is made of 316L stainless steel. The buffer layer (12) is embedded inside the substrate layer (11). The buffer layer (12) is made of POM engineering plastic gasket. The anti-corrosion layer (13) is coated on the outer surface of the substrate layer (11). The anti-corrosion layer (13) is made of PTFE coating.

4. A high-strength corrosion-resistant spring according to claim 1, characterized in that: The two ends of the spring body (6) are respectively attached to the top of the insert (3) and the bottom of the base sleeve (1), and the top and bottom of the outer surface of the spring body (6) are respectively attached to the second limiting ring (9) and the first limiting ring (7).

5. A high-strength corrosion-resistant spring according to claim 1, characterized in that: The bottom end of the insert (3) is slidably inserted into the inside of the sealing ring (2), and the outer surface of the insert (3) is in contact with the inner wall of the sealing ring (2).

6. A high-strength corrosion-resistant spring according to claim 1, characterized in that: The sliding block (5) has an arc-shaped surface on one side, and the outer surface of the sliding block (5) is in contact with the inside of the groove (10).

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