Polytetrafluoroethylene sealing ring structure

Abstract

The utility model discloses a polytetrafluoroethylene sealing ring structure which comprises a sealing ring, and an anti-skid mechanism is arranged outside the sealing ring. A first annular plate is fixedly connected to the top of the inner wall of the sealing ring, a second annular plate is fixedly connected to the bottom of the inner wall of the sealing ring, and a first protruding block is fixedly connected to the side, close to the first annular plate, of the inner wall of the sealing ring. According to the polytetrafluoroethylene sealing ring structure, the first annular plate, the second annular plate, the first protruding block and the second protruding block are matched, so that the sealing ring is prevented from rotating, and the problem that when the polytetrafluoroethylene sealing ring is used, due to the fact that the friction force of the sealing ring is low, the sealing ring cannot rotate is solved. The problems that in the prior art, a sealing ring is prone to rotating, abrasion of the sealing ring is accelerated, the service life of the sealing ring is shortened, the sealing face of a part is scratched, and scratches, pits and damage are formed are solved.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, specifically a polytetrafluoroethylene sealing ring structure. Background Technology

[0002] The function of a sealing ring is to seal, and polytetrafluoroethylene (PTFE) sealing rings are resistant to acids, alkalis, and various organic solvents, and are almost insoluble in all solvents.

[0003] When using traditional PTFE sealing rings, the operator installs the sealing ring at the working position to seal the connection between the two parts.

[0004] However, when using PTFE sealing rings, due to their relatively low friction, the sealing rings are prone to rotation. This rotation causes abnormal friction between the sealing ring and the surface of the part, which not only accelerates the wear of the sealing rings and shortens their service life, but also scratches the sealing surface of the part, resulting in scratches, pits and damage. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a polytetrafluoroethylene (PTFE) sealing ring structure, which solves the problem that when PTFE sealing rings are used, their low friction makes them prone to rotation, which not only accelerates wear and shortens service life, but also scratches the sealing surface of parts, forming scratches, pits and damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polytetrafluoroethylene (PTFE) sealing ring structure, comprising a sealing ring, wherein an anti-slip mechanism is provided on the outside of the sealing ring; the anti-slip mechanism comprises a first annular plate, a second annular plate, a first protrusion, and a second protrusion; the first annular plate is fixedly connected to the top of the inner wall of the sealing ring, the second annular plate is fixedly connected to the bottom of the inner wall of the sealing ring, the first protrusion is fixedly connected to the side of the inner wall of the sealing ring near the first annular plate, and the second protrusion is fixedly connected to the side of the inner wall of the sealing ring near the second annular plate.

[0007] Preferably, a first groove is formed at the top of the outer wall of the sealing ring, and a second groove is formed at the bottom of the outer wall of the sealing ring, with the first groove and the second groove extending to the inner wall of the sealing ring respectively.

[0008] Preferably, the sealing ring has a first groove and a second recess on its side, and the first groove and the second recess extend into the interior of the sealing ring.

[0009] Preferably, the upper and lower inner walls of the first slot and the second groove are respectively fixedly connected with a third protrusion.

[0010] Preferably, the outer wall of the sealing ring is provided with a compression-resistant portion. Beneficial effects

[0011] This utility model provides a polytetrafluoroethylene (PTFE) sealing ring structure. It has the following advantages: This PTFE sealing ring structure, through the cooperation between the first annular plate, the second annular plate, the first protrusion, and the second protrusion, improves the friction of the sealing ring, preventing it from rotating. This solves the problem that, during use, the low friction of the PTFE sealing ring easily leads to rotation, which not only accelerates wear and shortens its service life but also scratches the sealing surface of parts, forming scratches, pits, and damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 An exterior schematic diagram;

[0014] Figure 3 for Figure 1 Schematic diagram of the structure of the sealing ring material;

[0015] Figure 4 for Figure 1 A schematic diagram of the structure of the central sealing ring, the first groove, and the first protrusion.

[0016] In the figure: 1. Sealing ring; 2. First annular plate; 3. Second annular plate; 4. First protrusion; 5. Second protrusion; 6. First groove; 7. Second groove; 8. First slot; 9. Second slot; 10. Third protrusion; 11. Compression-resistant part. Detailed Implementation

[0017] 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.

[0018] When polytetrafluoroethylene (PTFE) sealing rings are in use, their low friction makes them prone to rotation. This not only accelerates the wear of the sealing rings and shortens their service life, but also scratches the sealing surfaces of parts, causing scratches, pits, and damage.

[0019] In view of this, the present invention provides a polytetrafluoroethylene (PTFE) sealing ring structure. Through the cooperation between the first annular plate, the second annular plate, the first protrusion, and the second protrusion, the friction of the sealing ring is improved, and the self-rotation of the sealing ring is prevented. This solves the problem that when PTFE sealing rings are used, due to their relatively low friction, the sealing ring is prone to rotation, which not only accelerates the wear of the sealing ring and shortens its service life, but also scratches the sealing surface of the parts, forming scratches, pits, and damage.

[0020] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly introduced below.

[0021] Example 1, by Figure 1-4 As can be seen, the polytetrafluoroethylene sealing ring structure in this case includes a sealing ring 1, and an anti-slip mechanism is provided on the outside of the sealing ring 1; the anti-slip mechanism includes a first annular plate 2, a second annular plate 3, a first protrusion 4, and a second protrusion 5; the top of the inner wall of the sealing ring 1 is fixedly connected to the first annular plate 2, the bottom of the inner wall of the sealing ring 1 is fixedly connected to the second annular plate 3, the side of the inner wall of the sealing ring 1 close to the first annular plate 2 is fixedly connected to the first protrusion 4, and the side of the inner wall of the sealing ring 1 close to the second annular plate 3 is fixedly connected to the second protrusion 5;

[0022] In the specific implementation process, it is worth noting that the first annular plate 2 and the second annular plate 3 can make the inner wall of the sealing ring 1 fit tightly with the main shaft of the part, and the first protrusion 4 and the second protrusion 5 contact the main shaft of the part, thereby increasing the friction of the sealing ring 1 and preventing the sealing ring 1 from rotating.

[0023] Furthermore, a first groove 6 is provided on the top of the outer wall of the sealing ring 1, and a second groove 7 is provided on the bottom of the outer wall of the sealing ring 1. The first groove 6 and the second groove 7 extend to the inner wall of the sealing ring 1 respectively. When the sealing ring 1 is in use, the first groove 6 and the second groove 7 can make the upper and lower surfaces of the sealing ring 1 fit tightly with the upper and lower outer walls of the part, thereby improving the sealing effect of the sealing ring 1.

[0024] In the specific implementation process, it is worth noting that when the sealing ring 1 is used, the first groove 6 and the second groove 7 can make the upper and lower surfaces of the sealing ring 1 fit tightly with the upper and lower outer walls of the part, thereby improving the sealing effect of the sealing ring 1.

[0025] Furthermore, the sealing ring 1 has a first groove 8 and a second groove 9 respectively on its side, and the first groove 8 and the second groove 9 extend into the interior of the sealing ring 1.

[0026] In the specific implementation process, it is worth noting that the first slot 8 and the second slot 9 are inserted into the retaining ring on the outer wall of the part to fix the sealing ring 1, thereby fixing the sealing ring 1.

[0027] Furthermore, the upper and lower inner walls of the first slot 8 and the second slot 9 are respectively fixedly connected with a third protrusion 10;

[0028] In the specific implementation process, it is worth noting that the third protrusion 10 can make close contact with the retaining ring on the outer wall of the part, thereby improving the fixing effect of the sealing ring 1.

[0029] Example 2, by Figure 1-3 It can be seen that the outer wall of the sealing ring 1 is provided with a compression-resistant part 11;

[0030] In the specific implementation process, it is worth noting that the material of the extrusion-resistant part 11 is polyurethane. Polyurethane, also known as polyurethane, is a polymer material with excellent mechanical properties formed by the condensation reaction of polyols and polyisocyanates. Extrusion-resistant polyurethane has high strength and wear resistance and can withstand greater pressure and extrusion. The connection between the sealing ring 1 and the extrusion-resistant part 11 is a vulcanization bonding process. After the sealing ring 1 is formed, a silane coupling agent primer (such as KH-560) is coated on its outer wall. After drying, a polyurethane preform is placed and placed in a vulcanization furnace for secondary vulcanization (temperature 150-180℃, time 10-20 minutes). Through chemical reaction, the polyurethane and rubber form covalent bonds. The performance parameters are peel strength ≥8N / mm and temperature resistance range -40℃~120℃, which is suitable for high-temperature working conditions and realizes the compression resistance characteristics of the sealing ring 1.

[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 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 polytetrafluoroethylene sealing ring structure, comprising a sealing ring (1), characterized in that: The sealing ring (1) is provided with an anti-slip mechanism on its outside; The anti-slip mechanism includes a first annular plate (2), a second annular plate (3), a first protrusion (4), and a second protrusion (5); The top of the inner wall of the sealing ring (1) is fixedly connected to a first annular plate (2), the bottom of the inner wall of the sealing ring (1) is fixedly connected to a second annular plate (3), the inner wall of the sealing ring (1) is fixedly connected to a first protrusion (4) on the side near the first annular plate (2), and the inner wall of the sealing ring (1) is fixedly connected to a second protrusion (5) on the side near the second annular plate (3).

2. The polytetrafluoroethylene sealing ring structure according to claim 1, characterized in that: The top of the outer wall of the sealing ring (1) is provided with a first groove (6), and the bottom of the outer wall of the sealing ring (1) is provided with a second groove (7). The first groove (6) and the second groove (7) extend to the inner wall of the sealing ring (1) respectively.

3. The polytetrafluoroethylene sealing ring structure according to claim 1, characterized in that: The sealing ring (1) has a first slot (8) and a second slot (9) on its side, and the first slot (8) and the second slot (9) extend into the interior of the sealing ring (1).

4. The polytetrafluoroethylene sealing ring structure according to claim 3, characterized in that: The upper and lower inner walls of the first slot (8) and the second slot (9) are respectively fixedly connected with a third protrusion (10).

5. The polytetrafluoroethylene sealing ring structure according to claim 1, characterized in that: The outer wall of the sealing ring (1) is provided with a compression-resistant part (11).

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