Windscreen wiper sealing ring, windscreen wiper assembly and vehicle

Abstract

The utility model relates to a windscreen wiper sealing ring, a windscreen wiper assembly and a vehicle, the windscreen wiper sealing ring comprises a first sealing ring and a second sealing ring, and the first sealing ring is provided with a through hole; the second sealing ring is arranged on the outer side of the first sealing ring in a sleeving mode, the second sealing ring and the first sealing ring are integrally formed in an injection molding mode, and an annular sealing groove is formed in the peripheral wall of the second sealing ring. The hardness of the first sealing ring is larger than that of the second sealing ring. According to the windscreen wiper sealing ring disclosed by the invention, the second sealing ring and the first sealing ring are subjected to integral injection molding, so that the structure of the windscreen wiper sealing ring can be simplified, and the production efficiency and the mounting efficiency of the windscreen wiper sealing ring are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a wiper sealing ring, a wiper assembly and a vehicle. Background Art

[0002] Wipers are used to clean a vehicle's windshield. Wiper seals are mounted on the wiper shaft and are used to seal the wiper against the vent cover or windshield, preventing dust, rain, and other external elements from entering the vehicle. In related technologies, wiper seals primarily come in two forms: The first utilizes single-color injection molding, which results in a relatively high overall hardness and high assembly precision requirements, making it prone to producing unusual noises when the wiper is in operation. The second utilizes multiple sealing rings assembled into a sealing assembly. While this requires lower assembly precision and is less prone to unusual noises, the wiper seals have a large number of components, resulting in low production efficiency and numerous assembly steps, leading to low installation efficiency. Utility Model Content

[0003] The present disclosure provides a wiper sealing ring to improve the production efficiency and installation efficiency of the wiper sealing ring.

[0004] The wiper sealing ring disclosed in the present invention includes a first sealing ring and a second sealing ring, wherein the first sealing ring is provided with a through hole; the second sealing ring is sleeved on the outside of the first sealing ring and is integrally injection-molded with the first sealing ring, and the outer peripheral wall of the second sealing ring is provided with an annular sealing groove; wherein the hardness of the first sealing ring is greater than that of the second sealing ring.

[0005] Optionally, one of the first sealing ring and the second sealing ring is provided with a groove, and the other of the first sealing ring and the second sealing ring is provided with a protrusion, and the protrusion is embedded in the groove.

[0006] Optionally, the first sealing ring includes a first ring body, the second sealing ring includes a second ring body, the second ring body is arranged on the outside of the first ring body, and the through hole is arranged in the first ring body; in the axial direction of the wiper sealing ring, the first end of the first ring body and the first end of the second ring body are connected, and there is a gap between the rest of the first ring body and the rest of the second ring body.

[0007] Optionally, the first ring body gradually tilts toward the radial inner side of the wiper sealing ring along a direction away from its first end; and / or the second ring body gradually tilts toward the radial outer side of the wiper sealing ring along a direction away from its first end.

[0008] Optionally, the second sealing ring also includes a third ring body, which is arranged on the outside of the second ring body; in the axial direction of the wiper sealing ring, the first end of the third ring body is connected to the second end of the second ring body, and there is a gap between the rest of the third ring body and the rest of the second ring body, and the sealing groove is arranged on the outer peripheral wall of the third ring body.

[0009] Optionally, the second ring body gradually tilts toward the radial outside of the wiper sealing ring along the direction from its first end to its second end; and / or the third ring body gradually tilts toward the radial outside of the wiper sealing ring along the direction from its first end to its second end.

[0010] Optionally, the sealing groove comprises a first groove wall and a second groove wall which are arranged opposite to each other along the axial direction of the wiper sealing ring, and in the radial direction of the wiper sealing ring, the size of the first groove wall is smaller than that of the second groove wall.

[0011] Optionally, the second groove wall is provided with a sawtooth structure.

[0012] Optionally, the first sealing ring is made of polyoxymethylene.

[0013] Optionally, the Shore hardness of the second sealing ring is 50HA-80HA.

[0014] The present disclosure also provides a wiper assembly.

[0015] The wiper assembly disclosed herein comprises a wiper sealing ring and a wiper shaft, wherein the wiper sealing ring is any one of the wiper sealing rings described above; the wiper shaft passes through the through hole and is gap-fitted with the through hole.

[0016] The present disclosure further provides a vehicle.

[0017] The vehicle disclosed herein includes a wiper assembly and a mounting plate, wherein the wiper assembly is the wiper assembly described in any one of the above items; the mounting plate is provided with a mounting hole, the wiper sealing ring is arranged in the mounting hole, and the sealing groove is sealed with the hole wall of the mounting hole.

[0018] When installing the wiper sealing ring of the disclosed embodiment, the wiper shaft is passed through the through hole of the first sealing ring, and the second sealing ring is installed in the mounting hole of the mounting plate. The sealing groove of the second sealing ring is sealed with the hole wall of the mounting hole to achieve sealing between the wiper shaft and the mounting plate. By setting the hardness of the first sealing ring to be greater than the hardness of the second sealing ring, not only is the hardness of the first sealing ring greater, thereby ensuring the assembly accuracy between the wiper shaft and the through hole, as well as the sealing performance between the wiper shaft and the wiper sealing ring; but the second sealing ring is also easily deformed to absorb the shaking of the wiper shaft during operation, thereby reducing the risk of abnormal noise when the wiper is operating. By integrally injection molding the second sealing ring and the first sealing ring, the structure of the wiper sealing ring can be simplified, and the production efficiency and installation efficiency of the wiper sealing ring can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a wiper sealing ring according to an embodiment of the present disclosure.

[0020] Figure 2 2. It is a front view of the wiper sealing ring of the embodiment of the present disclosure.

[0021] Figure 3 yes Figure 2 AA view.

[0022] Figure 4 It is a three-dimensional diagram of the wiper sealing ring of the embodiment of the present disclosure in use.

[0023] Figure 5 It is a stereoscopic view of the wiper sealing ring of the embodiment of the present disclosure in a use state from another perspective.

[0024] Figure 6 yes Figure 5 BB direction view.

[0025] Reference numerals:

[0026] 10. Wiper seal;

[0027] 1. First sealing ring; 11. Through hole; 12. Protrusion; 101. First ring body;

[0028] 2. Second sealing ring; 21. Sealing groove; 211. First groove wall; 212. Second groove wall; 2121. Sawtooth structure; 22. Groove; 201. Second ring body; 202. Third ring body;

[0029] 20. Wiper shaft;

[0030] 30. Mounting plate; 301. Mounting hole;

[0031] 40. Wiper arm. DETAILED DESCRIPTION

[0032] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0033] like Figures 1 to 3 As shown, the wiper seal ring 10 of the disclosed embodiment includes a first seal ring 1 and a second seal ring 2. The second seal ring 2 is sleeved on the outside of the first seal ring 1 and is integrally injection-molded with the first seal ring 1. The first seal ring 1 has a through hole 11, and the outer peripheral wall of the second seal ring 2 has an annular sealing groove 21. The hardness of the first seal ring 1 is greater than that of the second seal ring 2.

[0034] like Figures 4 to 6 As shown, during installation of the wiper seal ring 10 of the disclosed embodiment, the wiper shaft 20 is passed through the through-hole 11 of the first seal ring 1, and the second seal ring 2 is installed in the mounting hole 301 of the mounting plate 30. The sealing groove 21 of the second seal ring 2 seals against the wall of the mounting hole 301, achieving a seal between the wiper shaft 20 and the mounting plate 30. By setting the hardness of the first seal ring 1 to be greater than that of the second seal ring 2, not only is the hardness of the first seal ring 1 greater, ensuring the assembly precision between the wiper shaft 20 and the through-hole 11, as well as the sealing performance between the wiper shaft 20 and the wiper seal ring 10, but it also allows the second seal ring 2 to deform more easily, absorbing the shaking of the wiper shaft 20 during operation and reducing the risk of abnormal noise during wiper operation. By integrally injection-molding the second seal ring 2 with the first seal ring 1, the structure of the wiper seal ring 10 can be simplified, improving the production and installation efficiency of the wiper seal ring 10.

[0035] Specifically, when manufacturing the wiper seal ring 10 , the first seal ring 1 may be injection molded first, and then the second seal ring 2 may be injection molded secondarily, that is, the wiper seal ring 10 may be molded by two-color injection molding.

[0036] Alternatively, as Figure 3 As shown, one of the first sealing ring 1 and the second sealing ring 2 is provided with a groove 22 , and the other of the first sealing ring 1 and the second sealing ring 2 is provided with a protrusion 12 , which is embedded in the groove 22 .

[0037] For example, Figure 3 As shown, the first sealing ring 1 is provided with a protrusion 12, the second sealing ring 2 is provided with a groove 22, and the protrusion 12 is embedded in the groove 22. Of course, in other embodiments, the groove 22 can also be provided on the first sealing ring 1 and the protrusion 12 can be provided on the second sealing ring 2.

[0038] By embedding the protrusion 12 in the groove 22 , the bonding force between the first sealing ring 1 and the second sealing ring 2 can be increased, and the connection reliability between the first sealing ring 1 and the second sealing ring 2 can be improved, thereby improving the reliability of the wiper seal ring 10 .

[0039] Optionally, the material of the first sealing ring 1 is polyformaldehyde (POM).

[0040] Polyoxymethylene has good physical, mechanical and chemical properties, as well as excellent friction resistance. By using polyoxymethylene as the material of the first sealing ring 1, the wear resistance between the first sealing ring 1 and the wiper shaft 20 can be improved, thereby improving the reliability of the wiper sealing ring 10.

[0041] Optionally, the Shore hardness of the second sealing ring 2 is 50HA-80HA.

[0042] It can be understood that, the greater the hardness of the second sealing ring 2, the better the sealing performance between the second sealing ring 2 and the mounting hole 301, but the less likely the second sealing ring 2 is to deform, the less likely it is to absorb the shaking of the wiper shaft 20 during operation, and the greater the risk of abnormal noise when the wiper is working; the smaller the hardness of the second sealing ring 2, the easier it is to deform, the easier it is to absorb the shaking of the wiper shaft 20 during operation, and the smaller the risk of abnormal noise when the wiper is working, but the worse the sealing performance between the second sealing ring 2 and the mounting hole 301.

[0043] By setting the Shore hardness of the second sealing ring 2 to 50HA to 80HA, the risk of abnormal noise during operation of the wiper can be effectively reduced while ensuring the sealing performance of the wiper seal ring 10 .

[0044] Optionally, the second sealing ring 2 is made of thermoplastic elastomer (TPE).

[0045] Thermoplastic elastomer material has properties such as high elasticity and aging resistance. By setting the material of the second sealing ring 2 to be thermoplastic elastomer material, the service life of the wiper sealing ring 10 can be extended.

[0046] In some embodiments, as Figure 3 As shown, the first sealing ring 1 includes a first ring body 101, and the second sealing ring 2 includes a second ring body 201. The second ring body 201 is arranged outside the first ring body 101, and the through hole 11 is provided in the first ring body 101. In the axial direction of the wiper seal ring 10, the first end of the first ring body 101 and the first end of the second ring body 201 are connected, and a gap is formed between the remaining portion of the first ring body 101 and the remaining portion of the second ring body 201.

[0047] In order to make the technical solution of the present disclosure easier to understand, the following takes the axial direction of the wiper seal ring 10 as an example to further describe the technical solution of the present disclosure, wherein the up and down directions are as follows: Figure 3 shown.

[0048] For example, the upper end of the first ring body 101 is the first end of the first ring body 101, and the lower end of the first ring body 101 is the second end of the first ring body 101. The upper end of the second ring body 201 is the first end of the second ring body 201, and the lower end of the second ring body 201 is the second end of the second ring body 201. The upper end of the first ring body 101 is connected to the upper end of the second ring body 201, and a gap is formed between the rest of the first ring body 101 and the rest of the second ring body 201.

[0049] By connecting the first end of the first ring body 101 and the first end of the second ring body 201, a gap is set between the remaining part of the first ring body 101 and the remaining part of the second ring body 201, so that the first ring body 101 can move to the gap between the first ring body 101 and the second ring body 201, so that the first ring body 101 can move along the axial direction of the wiper sealing ring 10. On the one hand, the concentricity between the mounting hole 301 and the wiper shaft 20 is ensured; on the other hand, the amount of shaking when the wiper is working is absorbed.

[0050] Alternatively, as Figure 3 As shown, the second sealing ring 2 further includes a third ring body 202, which is disposed outside the second ring body 201. In the axial direction of the wiper seal ring, a first end of the third ring body 202 is connected to a second end of the second ring body 201, with a gap between the remaining portion of the third ring body 202 and the remaining portion of the second ring body 201. A sealing groove 21 is disposed on the outer peripheral wall of the third ring body 202.

[0051] For example, the upper end of the second ring body 201 is the first end of the second ring body 201, and the lower end of the second ring body 201 is the second end of the second ring body 201. The lower end of the third ring body 202 is the first end of the third ring body 202, and the upper end of the third ring body 202 is the second end of the third ring body 202. The lower end of the third ring body 202 is connected to the lower end of the second ring body 201, and the rest of the third ring body 202 is spaced apart from the rest of the second ring body 201.

[0052] By connecting the first end of the third ring body 202 and the second end of the second ring body 201, a gap is set between the remaining part of the third ring body 202 and the remaining part of the second ring body 201, so that the first ring body 101 can move along with the second ring body 201 to the gap between the second ring body 201 and the third ring body 202, so that the first ring body 101 can move along the axial direction of the wiper sealing ring 10. On the one hand, the concentricity between the mounting hole 301 and the wiper shaft 20 is ensured; on the other hand, the amount of shaking when the wiper is working is absorbed.

[0053] Alternatively, as Figure 3 As shown, the first ring body 101 gradually tilts toward the radial inner side of the wiper sealing ring 10 along the direction from the first end to the second end.

[0054] For example, Figure 3 As shown, the first ring body 101 gradually tilts from top to bottom toward the radial inner side of the wiper seal ring 10. The lower end of the first ring body 101 is engaged with the wiper shaft 20.

[0055] By setting the first ring body 101 to gradually tilt radially inward from its first end to the second end of the wiper sealing ring 10, it is not only convenient to form a gap between the first ring body 101 and the second ring body 201, but also the second end of the first ring body 101 can have a larger moving space, so that the wiper sealing ring 10 can better absorb the amount of shaking when the wiper is working.

[0056] Alternatively, as Figure 3 As shown, the second ring body 201 gradually tilts toward the radial outside of the wiper sealing ring 10 along the direction from the first end to the second end.

[0057] For example, Figure 3 As shown, the second ring body 201 gradually tilts toward the radial outside of the wiper sealing ring 10 from top to bottom.

[0058] By setting the second ring body 201 to gradually tilt toward the radial outside of the wiper sealing ring 10 along the direction from its first end to the second end, it is not only convenient to form a gap between the first ring body 101 and the second ring body 201, but also the second end of the first ring body 101 can have a larger moving space, so that the wiper sealing ring 10 can better absorb the amount of shaking when the wiper is working.

[0059] Alternatively, as Figure 3 As shown, the third ring body 202 gradually tilts toward the radial outside of the wiper sealing ring 10 along the direction from the first end to the second end.

[0060] For example, Figure 3 As shown, the third ring body 202 gradually tilts toward the radial outer side of the wiper sealing ring 10 from bottom to top.

[0061] By setting the third ring body 202 to gradually tilt toward the radial outside of the wiper sealing ring 10 along the direction from its first end to the second end, it is not only convenient to form a gap between the second ring body 201 and the third ring body 202, but also the first end of the second ring body 201 can have a larger moving space, so that the wiper sealing ring 10 can better absorb the amount of shaking when the wiper is working.

[0062] Alternatively, as Figure 3 As shown, the sealing groove 21 includes a first groove wall 211 and a second groove wall 212 arranged opposite to each other along the axial direction of the wiper seal ring 10. In the radial direction of the wiper seal ring 10, the size of the first groove wall 211 is smaller than that of the second groove wall 212.

[0063] For example, Figure 3 As shown, the first groove wall 211 is arranged on the upper side of the second groove wall 212 . In the radial direction of the wiper seal ring 10 , the size of the first groove wall 211 is smaller than that of the second groove wall 212 .

[0064] When installing the wiper seal ring 10 , the first groove wall 211 can be passed through the mounting hole 301 , so that the mounting hole 301 and the sealing groove 21 are snap-fitted together, thereby connecting the wiper seal ring 10 to the mounting plate 30 .

[0065] By setting the size of the first groove wall 211 to be smaller than the size of the second groove wall 212 in the radial direction of the wiper sealing ring 10, the size of the first groove wall 211 is made smaller, which makes it convenient to pass through the mounting hole 301 of the mounting plate 30 through deformation, thereby facilitating the installation of the wiper sealing ring 10 and helping to improve the installation efficiency of the wiper sealing ring 10.

[0066] Alternatively, as Figure 3 As shown, the second groove wall 212 is provided with a sawtooth structure 2121 .

[0067] For example, Figure 6 As shown, the mounting plate 30 is clamped between the first groove wall 211 and the second groove wall 212 , the first groove wall 211 is sealed against one surface of the mounting plate 30 , and the second groove wall 212 is sealed against the other surface of the mounting plate 30 .

[0068] By providing the sawtooth structure 2121 on the second groove wall 212 , the sealing between the second groove wall 212 and the mounting plate 30 can be improved, thereby improving the sealing between the wiper seal ring 10 and the mounting plate 30 .

[0069] like Figures 4 to 6As shown, the wiper assembly of the disclosed embodiment includes a wiper sealing ring 10 and a wiper shaft 20, and the wiper sealing ring 10 is the wiper sealing ring 10 described in any of the above embodiments. The wiper shaft 20 passes through the through hole 11 and is gap-fitted with the through hole 11.

[0070] Optionally, the gap between the wiper shaft 20 and the through hole 11 is less than or equal to 0.2 mm.

[0071] like Figures 4 to 6 As shown, the vehicle of the disclosed embodiment includes a wiper assembly and a mounting plate 30. The wiper assembly is any of the wiper assemblies described in the above embodiments. The mounting plate 30 defines a mounting hole 301. The wiper seal ring 10 is disposed within the mounting hole 301, and the sealing groove 21 is in sealing engagement with the wall of the mounting hole 301.

[0072] The mounting plate 30 may be a windshield or a ventilation cover.

[0073] When installing the wiper, first install the wiper sealing ring 10 in the mounting hole 301 of the mounting plate 30, so that the sealing groove 21 is engaged and sealed with the mounting plate 30; then, pass the wiper shaft 20 through the through hole 11 of the wiper sealing ring 10, and finally install the wiper arm 40 of the wiper on the wiper shaft 20.

[0074] Due to the low hardness of the second sealing ring 2 of the wiper seal 10, it not only easily snaps onto the mounting plate 30 and provides a good seal therewith, but also absorbs the concentricity tolerance between the wiper shaft 20 and the mounting hole 301. Furthermore, it also drives the first sealing ring 1 to move and absorb any vibrations caused by the wiper. The high hardness of the first sealing ring 1 of the wiper seal 10 prevents deformation of the through hole 11 when the wiper shaft 20 moves, providing a good seal with the wiper shaft 20 and effectively preventing rainwater and debris from entering the vehicle interior.

[0075] The wiper seal 10 of the disclosed embodiment ensures a seal between the wiper seal 10, the mounting plate 30 (windshield or vent cover), and the wiper, effectively preventing rain and debris from entering the vehicle interior. It also absorbs vibrations during wiper operation, preventing unusual noises. The wiper seal 10 is integrally injection-molded, reducing the number of components and improving production and installation efficiency.

[0076] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0078] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication between them; direct connections or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0079] In the present disclosure, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0080] In the present disclosure, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0081] Although the embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. Any changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present disclosure.

Claims

1. A wiper sealing ring, characterized in that: include: a first sealing ring, wherein the first sealing ring is provided with a through hole; a second sealing ring, which is sleeved on the outside of the first sealing ring and integrally injection-molded with the first sealing ring, and an annular sealing groove is provided on the outer peripheral wall of the second sealing ring; Wherein, the hardness of the first sealing ring is greater than the hardness of the second sealing ring.

2. The wiper seal ring according to claim 1, characterized in that: One of the first sealing ring and the second sealing ring is provided with a groove, and the other of the first sealing ring and the second sealing ring is provided with a protrusion, and the protrusion is embedded in the groove.

3. The wiper seal ring according to claim 1, characterized in that: The first sealing ring includes a first ring body, the second sealing ring includes a second ring body, the second ring body is arranged on the outside of the first ring body, and the through hole is provided in the first ring body; In the axial direction of the wiper sealing ring, the first end of the first ring body is connected to the first end of the second ring body, and a gap is formed between the remaining portion of the first ring body and the remaining portion of the second ring body.

4. The wiper seal ring according to claim 3, characterized in that: The first ring body gradually tilts toward the radial inner side of the wiper sealing ring in a direction away from the first end thereof; and / or The second ring body gradually tilts toward the radial outer side of the wiper sealing ring along a direction away from the first end thereof.

5. The wiper seal ring according to claim 3, characterized in that: The second sealing ring further includes a third ring body, and the third ring body is arranged on the outside of the second ring body; In the axial direction of the wiper sealing ring, the first end of the third ring body is connected to the second end of the second ring body, there is a gap between the remaining part of the third ring body and the remaining part of the second ring body, and the sealing groove is arranged on the outer peripheral wall of the third ring body.

6. The wiper seal ring according to claim 5, characterized in that: The second ring body gradually tilts toward the radial outer side of the wiper sealing ring along the direction from the first end to the second end; and / or The third ring body gradually tilts toward the radial outer side of the wiper sealing ring along the direction from the first end to the second end.

7. The wiper seal ring according to claim 1, characterized in that: The sealing groove comprises a first groove wall and a second groove wall which are arranged opposite to each other along the axial direction of the wiper sealing ring. In the radial direction of the wiper sealing ring, the size of the first groove wall is smaller than that of the second groove wall.

8. The wiper seal ring according to claim 7, characterized in that: The second groove wall is provided with a sawtooth structure.

9. The wiper seal ring according to claim 1, characterized in that: The first sealing ring is made of polyoxymethylene.

10. The wiper seal ring according to claim 1, characterized in that: The Shore hardness of the second sealing ring is 50HA-80HA.

11. A wiper assembly, characterized in that: include: A wiper sealing ring, wherein the wiper sealing ring is the wiper sealing ring according to any one of claims 1 to 10; A wiper shaft passes through the through hole and is loosely fitted with the through hole.

12. A vehicle, characterized in that: include: A wiper assembly, wherein the wiper assembly is the wiper assembly according to claim 11; The mounting plate is provided with a mounting hole, the wiper sealing ring is arranged in the mounting hole, and the sealing groove is sealed and matched with the hole wall of the mounting hole.

Images