Sealing strip with high resistance to compression

Abstract

The utility model relates to the technical field of sealing element, concretely is strong sealing strip of pressure resistance, including seal ring, the seal ring outside is provided with reinforcing rim, the seal ring inside is provided with transition slope, reinforcing rim left and right sides still are provided with the symmetrical auxiliary ring, the seal ring is far from transition slope one side still is provided with the edge assembly, this strong sealing strip of pressure resistance, the reinforcing rim of seal ring outside adopts thickening design, material and seal ring are same but are through hardening treatment, form rigid support, make radial compression strength promote, the outer diameter of auxiliary ring is greater than reinforcing rim outer diameter, and the interference fit is formed with the sealing groove when installing, produces radial hug tight force, further enhances the pressure resistance.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a sealing strip with strong pressure resistance. Background Technology

[0002] Sealing strips are sealing elements that can maintain their sealing performance under high pressure environments and are widely used in electronics, mechanical seals, automobiles and other fields.

[0003] Traditional sealing strips use a ring-shaped integrated structure to seal the ends of tubular structures. However, due to their poor strength, they are prone to deformation, resulting in a loose seal and making them inconvenient to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a sealing strip with strong pressure resistance.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sealing strip with strong pressure resistance, including a sealing ring, a reinforcing edge provided on the outer side of the sealing ring, a transition slope provided on the inner side of the sealing ring, auxiliary rings symmetrically provided on the left and right sides of the reinforcing edge, and a pressing edge assembly provided on the side of the sealing ring away from the transition slope.

[0008] Preferably, the pressing edge assembly includes a support ring and a pressing edge, and a support ring is also provided on the outer side of the sealing ring. A set of auxiliary rings is provided between the support ring and the reinforcing edge. The pressing edge is also provided on the side of the support ring away from the reinforcing edge, and the outer diameter of the pressing edge is larger than the outer diameter of the reinforcing edge.

[0009] Preferably, the outer diameter of the auxiliary ring is larger than the outer diameter of the reinforcing edge.

[0010] Preferably, the sealing ring is connected to the pressing edge via a connecting ring.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a sealing strip with strong pressure resistance, which has the following beneficial effects:

[0013] This high-compression-resistant sealing strip features a thickened reinforcing edge on the outer side of the sealing ring. The reinforcing edge is made of the same material as the sealing ring but is hardened to form a rigid support, thereby increasing radial compressive strength. The outer diameter of the auxiliary ring is larger than that of the reinforcing edge, and during installation, it forms an interference fit with the sealing groove, generating radial clamping force and further enhancing compressive strength. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure and pipe fitting assembly of this utility model.

[0017] In the diagram: 1. Sealing ring; 2. Reinforcing edge; 3. Auxiliary ring; 4. Support ring; 5. Pressing edge; 6. Connecting ring. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3 A sealing strip with strong pressure resistance includes a sealing ring 1, a reinforcing edge 2 on the outer side of the sealing ring 1, a transition slope on the inner side of the sealing ring 1, auxiliary rings 3 symmetrically arranged on the left and right sides of the reinforcing edge 2, and a pressing edge assembly on the side of the sealing ring 1 away from the transition slope.

[0020] The thickness of the reinforcing edge 2 on the outer side of the sealing ring 1 is increased by 30%-50% compared to the main body, and it is hardened (e.g., the Shore hardness of the rubber reinforcing edge 2 is increased by 10-15 degrees) to form a ring-shaped rigid skeleton. When external pressure is applied, the reinforcing edge 2 preferentially bears the radial load, and its own rigidity inhibits the deformation of the main body of the sealing ring 1;

[0021] The transition area between the reinforcing flange 2 and the main body of the sealing ring 1 is designed with rounded corners to avoid stress concentration. Pressure is evenly transmitted to the inner side of the sealing ring 1 through the reinforcing flange 2. The outer diameter of the auxiliary ring 3 is larger than the outer diameter of the reinforcing flange 2 (difference 0.2-0.5mm), forming an interference fit with the inner wall of the sealing groove during installation. The radial clamping force generated by the interference fit can offset part of the external pressure.

[0022] The auxiliary ring 3 is made of a high elastic modulus material (such as fluororubber), which absorbs impact energy through elastic deformation when pressure fluctuates, preventing the sealing surface from cracking due to fatigue.

[0023] In this embodiment, the pressing edge assembly includes a support ring 4 and a pressing edge 5. A support ring 4 is also provided on the outer side of the sealing ring 1. A set of auxiliary rings 3 is disposed between the support ring 4 and the reinforcing edge 2. The pressing edge 5 is also provided on the side of the support ring 4 away from the reinforcing edge 2. The outer diameter of the pressing edge 5 is larger than the outer diameter of the reinforcing edge 2, providing axial support for the sealing ring 1. When subjected to axial pressure, the sealing ring 1 and the support ring 4 are connected by a connecting ring 6. The support ring 4 restricts the axial displacement of the sealing ring 1 (displacement ≤ 0.1 mm), ensuring that the sealing surfaces always fit together.

[0024] The outer diameter of the pressing edge 5 is larger than that of the reinforcing edge 2. Under pressure, it cuts into the edge of the sealing groove to form a secondary sealing barrier.

[0025] The transition slope on the inner side of the sealing ring 1 serves as a guide when the tubular structure is inserted, while also preventing the sealing ring 1 from deforming due to forced compression.

[0026] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0027] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0028] 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.

Claims

1. A sealing strip with high pressure resistance, including a sealing ring (1), characterized in that, The sealing ring (1) is provided with a reinforcing edge (2) on the outside and a transition slope on the inside. The reinforcing edge (2) is also provided with auxiliary rings (3) symmetrically on the left and right sides. The sealing ring (1) is also provided with a pressing edge assembly on the side away from the transition slope.

2. The sealing strip with high compressive strength according to claim 1, characterized in that, The pressing edge assembly includes a support ring (4) and a pressing edge (5). The outer side of the sealing ring (1) is also provided with a support ring (4). A set of auxiliary rings (3) is provided between the support ring (4) and the reinforcing edge (2). The pressing edge (5) is also provided on the side of the support ring (4) away from the reinforcing edge (2). The outer diameter of the pressing edge (5) is larger than the outer diameter of the reinforcing edge (2).

3. The sealing strip with high compressive strength according to claim 2, characterized in that, The outer diameter of the auxiliary ring (3) is larger than the outer diameter of the reinforcing edge (2).

4. The sealing strip with high compressive strength according to claim 3, characterized in that, The sealing ring (1) is connected to the pressing edge (5) via the connecting ring (6).

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