Pressure ring set screw protective cover
By designing a protective cover for the pressure ring top screw, and utilizing a silicone layer and spring structure, the problem of the top screw being susceptible to high temperatures and dust was solved, resulting in a longer service life and better protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU XINYOU ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
The set screw of the pressure ring is susceptible to high temperature and dust, which can shorten its service life.
The pressure ring top screw protective cover is designed with a silicone layer and spring structure. It utilizes the high and low temperature resistance of silicone and the elasticity of the spring to prevent dust from entering and reduce heat radiation. The protective cover is fixed by a screw to enhance the protective effect.
It extends the service life of the pressure ring and set screw, avoids the effects of high temperature and dust, and improves the protective effect.
Smart Images

Figure CN224283436U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure ring top screw protection technology, specifically a pressure ring top screw protective cover. Background Technology
[0002] Pressure ring set screws are fasteners used to fix and prevent relative movement between shafts and sleeves. They are typically made by drilling and tapping threads in the side wall of the sleeve, and then tightening the set screws into the threaded holes to achieve a fastening effect. This design is mainly used for assembling small parts or fixing places with little movement, as it is both aesthetically pleasing and easy to install. Pressure ring set screws are commonly used in experimental equipment, construction, and heavy machinery maintenance. They are also widely used in mining, metallurgy, textiles, and conveying machinery, especially in situations where simple equipment and parts are required. However, the set screws of pressure rings are susceptible to high temperatures and dust, which reduces the service life of the pressure rings and set screws. Utility Model Content
[0003] The purpose of this invention is to solve the problem that the pressure ring set screw is easily affected by high temperature and dust, which reduces the service life of the pressure ring and set screw, and proposes a pressure ring set screw protective cover.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] The pressure ring top screw protective cover is designed, including a pressure ring and a bracket. The bracket is fixed to the inner wall of the pressure ring, and the bracket is internally threaded with a top screw. Two first ear plates are fixed to the outer wall of the pressure ring. The first ear plates are internally provided with threaded holes. The threaded holes are threadedly connected to the outer wall of the screw, and the outer wall of the screw is clearance-fitted with the through hole.
[0006] Preferably, the through hole is located inside the second ear plate, the outer wall of the second ear plate is fixedly connected to the protective cover, and both the second ear plate and the protective cover are in contact with the outer wall of the pressure ring.
[0007] Preferably, a silicone layer is fixed to the outer wall of the protective cover.
[0008] Preferably, a sleeve is fixed to the inner wall of the protective cover.
[0009] Preferably, a sliding rod is slidably connected inside the sleeve.
[0010] Preferably, a spring is provided inside the sleeve, and the two ends of the spring are fixedly connected to the sleeve and the slide rod, respectively.
[0011] Preferably, a support plate is fixedly connected to the end of the slide rod.
[0012] Preferably, the outer wall of the support plate is fitted with the protective cover with a clearance, and the support plate is in contact with the upper surface of the pressure ring.
[0013] The protective cover for the pressure ring set screw proposed in this utility model has the following advantages: the spring, under its elastic action, causes the support plate to move downward, making the support plate in close contact with the upper end of the pressure ring, increasing the dustproof effect. The protective cover can reduce the entry of dust into the interior of the pressure ring, protecting the pressure ring and set screw. The silicone layer utilizes the main properties of silicone, including excellent high and low temperature resistance (-60°C to 300°C), chemical stability, physiological inertness, high adsorption, and environmental recyclability, to enhance the high temperature resistance of the protective cover. A threaded hole is formed by drilling and tapping the first ear plate on the outside of the pressure ring, and the protective cover is fixed on the top of the pressure ring by a screw. This not only facilitates production operations but also blocks and reduces heat radiation and dust, extending the service life of the pressure ring and set screw, and preventing the set screw of the pressure ring from being easily affected by high temperature and dust, thus increasing the service life of the pressure ring and set screw. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the connection between the screw, the through hole, and the second ear plate in this utility model.
[0017] Figure 4 This is a schematic diagram of the structure of the connection between the pressure ring, the bracket, and the set screw in this utility model;
[0018] Figure 5 This is a schematic diagram of the connection between the sleeve, slide rod, and spring in this utility model.
[0019] In the diagram: 1. Pressure ring, 2. Bracket, 3. Set screw, 4. First ear plate, 5. Threaded hole, 6. Screw, 7. Through hole, 8. Second ear plate, 9. Protective cover, 10. Silicone layer, 11. Sleeve, 12. Slide rod, 13. Spring, 14. Support plate. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] See attached document Figure 1-5In this embodiment, the pressure ring top screw protective cover includes a pressure ring 1 and a bracket 2. The pressure ring is sleeved on the outside of the protective shaft and sleeve. The bracket 2 is fixed to the inner wall of the pressure ring 1. Multiple brackets 2 are provided and evenly distributed inside the pressure ring 2. The bracket 2 is threaded with a top screw 3 inside. The top screw 3 fixes the position of the shaft and sleeve. Two first ear plates 4 are fixed to the outer wall of the pressure ring 1. The two first ear plates 4 are fixed to the position of the pressure ring 1. The first ear plates 4 are provided with threaded holes 5 inside. The threaded holes 5 facilitate the screw 6 to be screwed in. The threaded holes 5 are threaded to the outer wall of the screw 6. The outer wall of the screw 6 is clearance-fitted with the through hole 7. The screw 6 can be inserted through the through hole 7. A nut is provided at the upper end of the screw 6. The nut cannot pass through the through hole 7.
[0022] A through hole 7 is located inside the second ear plate 8. The outer wall of the second ear plate 8 is fixedly connected to the protective cover 9. The second ear plates 8 are symmetrically arranged on both sides. Multiple second ear plates 8 can also be provided, evenly distributed below the protective cover 9. Both the second ear plates 8 and the protective cover 9 are in contact with the outer wall of the pressure ring 1. The protective cover 9 can be fastened to the outer wall of the pressure ring 1. A silicone layer 10 is fixedly attached to the outer wall of the protective cover 9. The main properties of silicone include excellent high and low temperature resistance (-60°C to 300°C), chemical stability, physiological inertness, high adsorption capacity, and environmental friendliness and renewability. These properties make it widely used in medical, food, and industrial fields. The silicone layer 10 improves the high temperature resistance of the protective cover 9. A sleeve 11 is fixedly connected to the inner wall. The protective cover 9 moves together with the sleeve 11. A sliding rod 12 is slidably connected inside the sleeve 11. The sliding rod 12 slides inside the sleeve 11. A spring 13 is installed inside the sleeve 11. The model of the spring 13 is selected according to the actual use requirements to meet the working needs. The two ends of the spring 13 are fixedly connected to the sleeve 11 and the sliding rod 12 respectively. Under the elastic action, the spring 13 can drive the sliding rod 12 to slide. A support plate 14 is fixedly connected to the end of the sliding rod 12. The sliding rod 12 and the support plate 14 move together. The outer wall of the support plate 14 is clearance-fitted with the protective cover 9. The support plate 14 shields the upper end of the pressure ring 1 to further increase the dustproof effect. The support plate 14 is in contact with the upper surface of the pressure ring 1.
[0023] The spring 13, under its elastic action, causes the support plate 14 to move downward, making the support plate 14 in close contact with the upper end of the pressure ring 1, thus increasing the dustproof effect. The protective cover 9 can reduce the entry of dust into the interior of the pressure ring 1 and protect the pressure ring 2 and the set screw 3. The silicone layer 10 utilizes the main properties of silicone, including excellent high and low temperature resistance (-60°C to 300°C), chemical stability, physiological inertness, high adsorption, and environmental recyclability, to increase the high temperature resistance of the protective cover 9. A threaded hole 5 is formed by drilling and tapping on the first ear plate 4 on the outside of the pressure ring 1. The protective cover 9 is fixed on the top of the pressure ring 1 by the screw 6, which not only facilitates production operations but also blocks and reduces heat radiation and dust, extending the service life of the pressure ring 1 and the set screw 3, and preventing the set screw 3 of the pressure ring 1 from being easily affected by high temperature and dust, thus increasing the service life of the pressure ring 1 and the set screw 3.
[0024] Working principle:
[0025] When using the pressure ring and set screw protective cover to protect the pressure ring 1 and set screw 3, put the pressure ring 1 on the required position, so that the end of the set screw 3 corresponds to the position of the shaft and sleeve that need to be fixed, and use a tool to rotate the set screw 3. The set screw 3 fixes the position of the shaft and sleeve, preventing relative movement between the shaft and sleeve.
[0026] Protection phase:
[0027] The protective cover 9 is fastened to the outside of the pressure ring 1, and the position of the through hole 7 corresponds to the position of the threaded hole 5. At this time, the support plate 14 is in contact with the upper end of the pressure ring 1. The screw 6 is inserted through the through hole 7 and inserted into the upper end of the threaded hole 5. The screw 6 is rotated and screwed into the inside of the threaded hole 5. The position of the nut of the screw 6 is in contact with the second ear plate 8. The relative position of the second ear plate 8 and the first ear plate 4 is fixed, and then the protective cover 9 is fixed to the outside of the pressure ring 1. After the screw 6 is screwed into the inside of the threaded hole 5, the slide rod 12 slides into the inside of the sleeve 11 and compresses the spring 13. Under the elastic action of the spring 13, the support plate 14 has a downward force, so that the support plate 14 is in close contact with the upper end of the pressure ring 1. To enhance dust protection, the protective cover 9 reduces the amount of dust entering the pressure ring 1 and protects the pressure ring 2 and set screw 3. The silicone layer 10 utilizes the main properties of silicone, including excellent high and low temperature resistance (-60°C to 300°C), chemical stability, physiological inertness, high adsorption, and environmental recyclability, to enhance the high temperature resistance of the protective cover 9. A threaded hole 5 is formed by drilling and tapping on the first ear plate 4 on the outside of the pressure ring 1. The protective cover 9 is fixed on top of the pressure ring 1 by a screw 6. This facilitates production operations and also blocks and reduces heat radiation and dust, extending the service life of the pressure ring 1 and set screw 3. It also prevents the set screw 3 of the pressure ring 1 from being easily affected by high temperature and dust, thus increasing the service life of the pressure ring 1 and set screw 3.
[0028] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A pressure ring top screw protection cover, comprising a pressure ring (1) and a bracket (2), the inner wall of the pressure ring (1) is fixedly connected with the bracket (2), characterized in that: The bracket (2) has a set screw (3) internally threaded. The outer wall of the pressure ring (1) is fixed with two first ear plates (4). The first ear plates (4) have threaded holes (5) inside. The threaded holes (5) are threadedly connected to the outer wall of the screw (6). The outer wall of the screw (6) is clearance-fitted with the through hole (7).
2. The pressure ring drive pin protector cover of claim 1, wherein: The through hole (7) is located inside the second ear plate (8). The outer wall of the second ear plate (8) is fixedly connected to the protective cover (9). Both the second ear plate (8) and the protective cover (9) are in contact with the outer wall of the pressure ring (1).
3. The pressure ring drive pin protector cap of claim 2, wherein: A silicone layer (10) is fixed to the outer wall of the protective cover (9).
4. The pressure ring top screw protective cover according to claim 2, characterized in that: A sleeve (11) is fixed to the inner wall of the protective cover (9).
5. The pressure ring top screw protective cover according to claim 4, characterized in that: The sleeve (11) is slidably connected to a slide rod (12).
6. The pressure ring top screw protective cover according to claim 4, characterized in that: The sleeve (11) is provided with a spring (13) inside, and the two ends of the spring (13) are fixedly connected to the sleeve (11) and the slide rod (12) respectively.
7. The pressure ring top screw protective cover according to claim 5, characterized in that: The end of the slide bar (12) is fixedly connected to a support plate (14).
8. The pressure ring top screw protective cover according to claim 7, characterized in that: The outer wall of the support plate (14) is fitted with the protective cover (9) with a clearance, and the support plate (14) is in contact with the upper surface of the pressure ring (1).