Wear-resistant rubber sealing assembly

Abstract

The utility model provides a wear-resistant rubber sealing assembly which comprises a middle-layer rubber sealing ring, an outer-layer rubber sealing ring and an inner-layer rubber sealing ring, and the outer-layer rubber sealing ring and the inner-layer rubber sealing ring are connected to the outer side and the inner side of the middle-layer rubber sealing ring respectively to jointly form the rubber sealing assembly. Through the arrangement of the middle-layer rubber sealing ring, the outer-layer rubber sealing ring and the inner-layer rubber sealing ring, the outer-layer rubber sealing ring and the inner-layer rubber sealing ring are in contact with corresponding objects, and the middle-layer rubber sealing ring is matched with a positioning hole in the middle-layer rubber sealing ring to achieve the positioning effect on the basis that the middle-layer rubber sealing ring is not in direct contact with the external objects; therefore, in the actual application process, the middle-layer rubber sealing ring plays a role in positioning, meanwhile, the abrasion is reduced, and the use requirement for abrasion resistance is met.

Description

Technical Field

[0001] The utility model relates to the field of rubber sealing rings, in particular to a wear-resistant rubber sealing component. Background Art

[0002] The rubber sealing ring is an annular cover composed of one or more parts, which is fixed on a ring or washer of the bearing and contacts with the other ring or washer or forms a narrow labyrinth gap with the other ring or washer to seal and prevent leakage.

[0003] For example, the application number is CN216589947U, and it is named “A wear-resistant rubber sealing ring”, which includes a sealing ring body, a wear-resistant elastic ring is clamped inside the sealing ring body, the surface of the sealing ring body is coated with an alumina ceramic coating, the outside of the alumina ceramic coating is coated with a nano-ceramic coating, and the outside of the nano-ceramic coating is coated with a polyurethane fiber coating. The front of the sealing ring body is provided with positioning holes, and there are four positioning holes, which are arranged in a ring shape.

[0004] However, the positioning holes of the rubber sealing ring are installed in the outer rubber layer, which makes the rubber thinner near the positioning holes and more prone to breakage and falling off due to wear. Therefore, we have made improvements to this and proposed a wear-resistant rubber sealing assembly. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant rubber sealing component, which solves the problem that the existing wear-resistant rubber sealing component is prone to breakage and falling off during use.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A wear-resistant rubber sealing assembly comprises a middle rubber sealing ring, an outer rubber sealing ring and an inner rubber sealing ring. The outer rubber sealing ring and the inner rubber sealing ring are respectively connected to the outer side and the inner side of the middle rubber sealing ring to form the rubber sealing assembly.

[0008] As a preferred technical solution of the present application, a waterproof resin adhesive layer 1 is coated between the middle rubber sealing ring and the outer rubber sealing ring to achieve the connection between the middle rubber sealing ring and the outer rubber sealing ring.

[0009] As a preferred technical solution of the present application, a second waterproof resin adhesive layer is coated between the middle rubber sealing ring and the inner rubber sealing ring to achieve the connection between the middle rubber sealing ring and the inner rubber sealing ring.

[0010] As a preferred technical solution of the present application, the surface of the middle rubber sealing ring has positioning holes, and a plurality of the positioning holes are equidistantly distributed along the circumferential direction of the middle rubber sealing ring.

[0011] As a preferred technical solution of this application, the middle rubber sealing ring includes an inner rubber ring and an outer rubber ring;

[0012] The outer rubber ring has two portions respectively distributed on the inner side and the outer side of the inner rubber ring.

[0013] As a preferred technical solution of the present application, the outer side of the outer rubber ring has an arc-shaped protrusion, and the outer rubber sealing ring and the inner rubber sealing ring are formed with matching accommodating portions corresponding to the arc-shaped protrusion.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the scheme of this application:

[0016] 1. By providing the middle rubber sealing ring, outer rubber sealing ring and inner rubber sealing ring, the outer rubber sealing ring and the inner rubber sealing ring can be in contact with the corresponding object, while the middle rubber sealing ring can cooperate with the positioning hole on it to achieve the positioning effect without direct contact with the external object. This ensures that in actual application, the inner rubber sealing ring can play a positioning role while reducing wear and meeting the wear resistance requirements;

[0017] 2. The structural design of the inner rubber ring and the outer rubber ring being integrally formed increases the bonding area between the middle rubber sealing ring and the corresponding outer rubber sealing ring and the inner rubber sealing ring, making them more firmly bonded through the waterproof resin bonding layer 1 and the waterproof resin bonding layer 2. In addition, the multi-layer rubber rings after bonding can be supported laterally by the arc-shaped protrusions to a certain extent, making it less likely for them to slide relative to each other or fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of the wear-resistant rubber sealing assembly provided in this application;

[0019] Figure 2 A schematic cross-sectional view of the wear-resistant rubber sealing assembly provided in this application;

[0020] Figure 3 A schematic top view of the wear-resistant rubber sealing assembly provided in this application;

[0021] Figure 4 A schematic cross-sectional view of the wear-resistant rubber sealing assembly provided in this application;

[0022] Figure 5The wear-resistant rubber sealing assembly provided by this application Figure 4 Enlarged structural diagram at point A in the middle.

[0023] Indicated in the figure:

[0024] 1. Middle rubber sealing ring; 2. Outer rubber sealing ring; 3. Inner rubber sealing ring; 4. Waterproof resin bonding layer 1; 5. Waterproof resin bonding layer 2;

[0025] 11. Positioning hole; 12. Inner rubber ring; 13. Outer rubber ring; 14. Arc-shaped raised portion; 15. Accommodating portion. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0027] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0031] like Figure 1-Figure 5As shown, this embodiment provides a wear-resistant rubber sealing assembly, comprising a middle rubber sealing ring 1, an outer rubber sealing ring 2 and an inner rubber sealing ring 3. The outer rubber sealing ring 2 and the inner rubber sealing ring 3 are respectively connected to the outer side and the inner side of the middle rubber sealing ring 1 to form a rubber sealing assembly together;

[0032] A waterproof resin adhesive layer 4 is coated between the middle rubber sealing ring 1 and the outer rubber sealing ring 2 to connect the middle rubber sealing ring 1 and the outer rubber sealing ring 2;

[0033] A second waterproof resin adhesive layer 5 is coated between the middle rubber sealing ring 1 and the inner rubber sealing ring 3 to achieve the connection between the middle rubber sealing ring 1 and the inner rubber sealing ring 3;

[0034] The surface of the middle rubber sealing ring 1 has positioning holes 11, and the plurality of positioning holes 11 are evenly spaced along the circumference of the middle rubber sealing ring 1. The distribution of the plurality of positioning holes 11 enables the rubber sealing ring to be more accurately positioned and installed with an external object during actual application.

[0035] The middle rubber sealing ring 1 includes an inner rubber ring 12 and an outer rubber ring 13, wherein the outer rubber ring 13 has two portions respectively distributed on the inner side and the outer side of the inner rubber ring 12;

[0036] The outer side of the outer rubber ring 13 has an arc-shaped protrusion 14 , and the outer rubber sealing ring 2 and the inner rubber sealing ring 3 form matching accommodating portions 15 corresponding to the arc-shaped protrusion 14 .

[0037] By providing the middle rubber sealing ring 1, the outer rubber sealing ring 2 and the inner rubber sealing ring 3, it is achieved that during the actual application of the rubber ring, the outer rubber sealing ring 2 and the inner rubber sealing ring 3 can be in contact with the corresponding objects, while the middle rubber sealing ring 1 can cooperate with the positioning hole 11 thereon to achieve the positioning effect without directly contacting the external objects, thereby ensuring that during the actual application, the inner rubber sealing ring 1 can play a positioning role while reducing wear and meeting the wear resistance requirements;

[0038] like Figure 4 and Figure 5 As shown, the middle rubber sealing ring 1 is provided with arc-shaped protrusions 14 on the connecting surfaces with the outer rubber sealing ring 2 and the inner rubber sealing ring 3 on both sides thereof. By providing the arc-shaped protrusions 14, the connecting area of ​​the waterproof resin adhesive layer 1 4 and the waterproof resin adhesive layer 2 5 is increased, thereby effectively increasing the bonding strength with the outer rubber sealing ring 2 and the inner rubber sealing ring 3, so that the middle rubber sealing ring will not fall off during actual use.

[0039] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A wear-resistant rubber sealing assembly, characterized in that: The invention comprises a middle rubber sealing ring (1), an outer rubber sealing ring (2) and an inner rubber sealing ring (3), wherein the outer rubber sealing ring (2) and the inner rubber sealing ring (3) are respectively connected to the outer side and the inner side of the middle rubber sealing ring (1) to form a rubber sealing assembly.

2. The wear-resistant rubber sealing assembly according to claim 1, characterized in that: A waterproof resin adhesive layer (4) is coated between the middle rubber sealing ring (1) and the outer rubber sealing ring (2) to achieve the connection between the middle rubber sealing ring (1) and the outer rubber sealing ring (2).

3. The wear-resistant rubber sealing assembly according to claim 1, characterized in that: A second waterproof resin adhesive layer (5) is coated between the middle rubber sealing ring (1) and the inner rubber sealing ring (3) to achieve the connection between the middle rubber sealing ring (1) and the inner rubber sealing ring (3).

4. The wear-resistant rubber sealing assembly according to claim 1, characterized in that: The surface of the middle rubber sealing ring (1) is provided with positioning holes (11), and a plurality of the positioning holes (11) are distributed at equal intervals along the circumferential direction of the middle rubber sealing ring (1).

5. The wear-resistant rubber sealing assembly according to claim 1, characterized in that: The middle rubber sealing ring (1) comprises an inner rubber ring (12) and an outer rubber ring (13); The outer rubber ring (13) has two portions respectively distributed on the inner side and the outer side of the inner rubber ring (12).

6. The wear-resistant rubber sealing assembly according to claim 5, characterized in that: The outer side of the outer rubber ring (13) is provided with an arc-shaped protrusion (14), and the outer rubber sealing ring (2) and the inner rubber sealing ring (3) are provided with matching accommodation portions (15) corresponding to the arc-shaped protrusion (14).

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