A polytetrafluoroethylene lip seal

Abstract

The utility model discloses belong to lip seal ring technical field, concretely is a kind of polytetrafluoroethylene lip seal ring, including root, the top end of the root is integrally equipped with outer sealing lip mouth, the bottom of the root is integrally equipped with inner sealing lip mouth, and several reinforcing components are equipped between the outer sealing lip mouth and the inner sealing lip mouth. The utility model discloses through setting reinforcing component between outer sealing lip mouth and inner sealing lip mouth, with realize when sealing, can improve the deformation force of outer sealing lip mouth and inner sealing lip mouth, by improving the deformation force of outer sealing lip mouth and inner sealing lip mouth, not only can improve the sealing effect of polytetrafluoroethylene lip seal ring, but also can delay the elastic failure time of polytetrafluoroethylene lip seal ring, prolongs service life.

Description

Technical Field

[0001] This utility model relates to the field of lip seal technology, specifically a polytetrafluoroethylene lip seal. Background Technology

[0002] A lip seal is a sealing element with a cross-sectional shape resembling a lip. It is primarily used to prevent leakage of liquids, gases, and other media, and has wide applications in machinery, automotive, aerospace, and many other fields. Its cross-section is typically Y-shaped, V-shaped, or U-shaped, similar to a lip, and is generally made of elastic materials (such as rubber or polyurethane). Some types may have a metal skeleton for enhanced support. A PTFE lip seal specifically refers to a lip seal made of PTFE (polytetrafluoroethylene).

[0003] However, the elasticity of existing PTFE lip seals may gradually weaken during long-term operation, resulting in a short service life. Therefore, a new PTFE lip seal is invented. Utility Model Content

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A polytetrafluoroethylene lip seal includes a root, an outer sealing lip integrally provided at the top of the root, an inner sealing lip integrally provided at the bottom of the root, and a plurality of reinforcing components provided between the outer sealing lip and the inner sealing lip.

[0006] As a preferred embodiment of the polytetrafluoroethylene lip seal ring of this utility model, the reinforcing component includes:

[0007] A number of transverse elastic rods are fixedly installed on one side of the outer sealing lip, and one end of each transverse elastic rod is fixedly installed on one side of the inner sealing lip.

[0008] A vertical elastic rod is provided, wherein several vertical elastic rods are fixedly installed on one side of the root, and one end of each vertical elastic rod is fixedly installed on one side of the horizontal elastic rod.

[0009] In a preferred embodiment of the polytetrafluoroethylene lip seal ring of this utility model, the material of the transverse elastic rod is spring steel, and the material of the vertical elastic rod is spring steel.

[0010] As a preferred embodiment of the polytetrafluoroethylene lip seal ring of this utility model, the reinforcing component includes:

[0011] A number of wave-shaped elastic sheets are fixedly installed on one side of the outer sealing lip, and one end of the wave-shaped elastic sheet is fixedly installed on one side of the inner sealing lip.

[0012] A number of U-shaped elastic sheets are fixedly installed on one side of the root, and one end of the U-shaped elastic sheet is fixedly installed on one side of the transverse elastic rod.

[0013] As a preferred embodiment of the polytetrafluoroethylene lip seal ring of this utility model, the wave-shaped elastic sheet is made of spring steel, and the U-shaped elastic sheet is made of spring steel.

[0014] As a preferred embodiment of the polytetrafluoroethylene lip seal ring described in this utility model, it further includes:

[0015] A venting assembly for dissipating heat from the root, outer sealing lip, and inner sealing lip, wherein the venting assembly is located on the root, outer sealing lip, and inner sealing lip.

[0016] As a preferred embodiment of the polytetrafluoroethylene lip seal ring described in this utility model, the ventilation assembly includes:

[0017] The first flow channel is formed in the root;

[0018] The second flow groove is formed in the outer sealing lip;

[0019] The third flow groove is formed in the inner sealing lip;

[0020] Micropores are formed in the root portion located outside the first flow channel.

[0021] In a preferred embodiment of the polytetrafluoroethylene lip seal ring of this utility model, the first flow groove is connected to the second flow groove, the first flow groove is connected to the third flow groove, and the first flow groove is connected to the micropore.

[0022] Compared with existing technologies:

[0023] 1. By setting a reinforcing component between the outer sealing lip and the inner sealing lip, the deformation force of the outer sealing lip and the inner sealing lip can be increased during sealing. By increasing the deformation force of the outer sealing lip and the inner sealing lip, not only can the sealing effect of the PTFE lip seal be improved, but the elastic failure time of the PTFE lip seal can also be delayed, thus extending its service life.

[0024] 2. By providing venting components at the root, outer sealing lip, and inner sealing lip, heat generated by the PTFE lip seal can be dissipated, further extending the service life of the PTFE lip seal to some extent. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of Embodiment 1 of the present utility model;

[0026] Figure 2 This is a top view schematic diagram of Embodiment 1 of the present utility model;

[0027] Figure 3 This is a partial structural diagram of the ventilation component of this utility model;

[0028] Figure 4 This is a front view schematic diagram of Embodiment 2 of this utility model.

[0029] In the figure: root 10, first flow groove 11, micropore 12, outer sealing lip 20, second flow groove 21, inner sealing lip 30, third flow groove 31, transverse elastic rod 40, vertical elastic rod 41, wave-shaped elastic sheet 50, U-shaped elastic sheet 51. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] This utility model provides a polytetrafluoroethylene lip seal ring. Please refer to [link / reference]. Figures 1-3 It includes a root 10, with an outer sealing lip 20 integrally provided at the top end of the root 10 and an inner sealing lip 30 integrally provided at the bottom end of the root 10. Several reinforcing components are provided between the outer sealing lip 20 and the inner sealing lip 30. The root 10, the outer sealing lip 20 and the inner sealing lip 30 are all made of polytetrafluoroethylene.

[0033] The reinforcing components include: a horizontal elastic rod 40 and a vertical elastic rod 41;

[0034] A plurality of transverse elastic rods 40 are fixedly installed on one side of the outer sealing lip 20, and one end of the transverse elastic rods 40 is fixedly installed on one side of the inner sealing lip 30. A plurality of vertical elastic rods 41 are fixedly installed on one side of the root 10, and one end of the vertical elastic rods 41 is fixedly installed on one side of the transverse elastic rods 40. The transverse elastic rods 40 and the vertical elastic rods 41 are both made of spring steel. In use, when the outer sealing lip 20 and the inner sealing lip 30 deform due to compression, the transverse elastic rods 40 will deform synchronously. At the same time, the vertical elastic rods 41 will also deform along with the transverse elastic rods 40. When the transverse elastic rods 40 and the vertical elastic rods 41 deform, the elasticity of the outer sealing lip 20 and the inner sealing lip 30 will increase, thereby improving the sealing effect.

[0035] It also includes a venting assembly for dissipating heat from the root 10, the outer sealing lip 20 and the inner sealing lip 30, and the venting assembly is provided on the root 10, the outer sealing lip 20 and the inner sealing lip 30.

[0036] The ventilation assembly includes: a first flow channel 11, micropores 12, a second flow channel 21, and a third flow channel 31;

[0037] The first flow groove 11 is formed in the root 10, the second flow groove 21 is formed in the outer sealing lip 20, and the third flow groove 31 is formed in the inner sealing lip 30. A plurality of microholes 12 are formed in the root 10 located outside the first flow groove 11. The first flow groove 11 is connected to the second flow groove 21, the first flow groove 11 is connected to the third flow groove 31, and the first flow groove 11 is connected to the microholes 12. There are a plurality of first flow grooves 11, microholes 12, second flow grooves 21, and third flow grooves 31. In use, if the polytetrafluoroethylene lip seal generates heat, the heat generated will flow out through the microholes 12 from the first flow grooves 11, second flow grooves 21, and third flow grooves 31 to achieve ventilation and heat dissipation.

[0038] Example 2:

[0039] This utility model provides a polytetrafluoroethylene lip seal ring. Please refer to [link / reference]. Figure 4 ;

[0040] The reinforcing components include: a wave-shaped elastic sheet 50 and a U-shaped elastic sheet 51;

[0041] A plurality of corrugated elastic sheets 50 are fixedly installed on one side of the outer sealing lip 20, and one end of the corrugated elastic sheet 50 is fixedly installed on one side of the inner sealing lip 30. A plurality of U-shaped elastic sheets 51 are fixedly installed on one side of the root 10, and one end of the U-shaped elastic sheet 51 is fixedly installed on one side of the transverse elastic rod 40. The corrugated elastic sheet 50 is made of spring steel, and the U-shaped elastic sheet 51 is also made of spring steel. In use, when the outer sealing lip 20 and the inner sealing lip 30 deform due to compression, the corrugated elastic sheet 50 will deform synchronously. At the same time, the U-shaped elastic sheet 51 will also deform along with the corrugated elastic sheet 50. When the corrugated elastic sheet 50 and the U-shaped elastic sheet 51 deform, the elasticity of the outer sealing lip 20 and the inner sealing lip 30 will increase, thereby improving the sealing effect.

[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A polytetrafluoroethylene lip seal ring comprising a root (10), an outer sealing lip nozzle (20) being integrated at a top end of the root (10), an inner sealing lip nozzle (30) being integrated at a bottom end of the root (10), characterized in that, Several reinforcing components are provided between the outer sealing lip (20) and the inner sealing lip (30); The reinforcement components include: A number of transverse elastic rods (40) are fixedly installed on one side of the outer sealing lip (20), and one end of the transverse elastic rod (40) is fixedly installed on one side of the inner sealing lip (30). A vertical elastic rod (41) is fixedly installed on one side of the root (10), and one end of the vertical elastic rod (41) is fixedly installed on one side of the horizontal elastic rod (40).

2. A PTFE lip seal ring according to claim 1, wherein The transverse elastic rod (40) is made of spring steel, and the vertical elastic rod (41) is also made of spring steel.

3. A PTFE lip seal according to claim 1, wherein The reinforcement components include: A number of wave-shaped elastic sheets (50) are fixedly installed on one side of the outer sealing lip (20), and one end of the wave-shaped elastic sheet (50) is fixedly installed on one side of the inner sealing lip (30). U-shaped elastic sheet (51), several U-shaped elastic sheets (51) are fixedly installed on one side of the root (10), and one end of the U-shaped elastic sheet (51) is fixedly installed on one side of the transverse elastic rod (40).

4. A PTFE lip seal according to claim 3, wherein The wave-shaped elastic sheet (50) is made of spring steel, and the U-shaped elastic sheet (51) is made of spring steel.

5. A PTFE lip seal according to claim 1, wherein Also includes: A ventilation assembly for dissipating heat from the root (10), the outer sealing lip (20) and the inner sealing lip (30), and the ventilation assembly is provided on the root (10), the outer sealing lip (20) and the inner sealing lip (30).

6. A polytetrafluoroethylene lip seal ring according to claim 5, characterized in that, The ventilation assembly includes: The first flow groove (11) is formed in the root (10); The second flow groove (21) is formed in the outer sealing lip (20); The third flow groove (31) is formed in the inner sealing lip (30); Micropores (12) are provided in the root (10) located outside the first flow groove (11).

7. A polytetrafluoroethylene lip seal ring according to claim 6, characterized in that, The first flow channel (11) is connected to the second flow channel (21), the first flow channel (11) is connected to the third flow channel (31), and the first flow channel (11) is connected to the micropore (12).

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