High-pressure combined sealing ring capable of passing through hole repeatedly

Abstract

The utility model relates to the technical field of sealing rings, in particular to a high-pressure combined sealing ring capable of passing through holes repeatedly, which comprises an outer gasket, a rubber ring is filled on the inner side of the outer gasket, a plurality of combined elastic steel sheet structures are arranged in the rubber ring, and each combined elastic steel sheet structure comprises two pairs of drop-shaped combined steel sheets. Every two adjacent pairs of drop-shaped combined steel sheets are arranged at an angle of 180 degrees, sealing ring grooves are formed in the upper side and the lower side of the outer gasket, and sealing gaskets are arranged in the sealing ring grooves in a high-pressure sealing mode. The sealing ring solves the problems that an existing sealing ring is single in structure, cannot adapt to the high-pressure environment and is short in service life under the high-pressure environment.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, and specifically refers to a high-pressure combined sealing ring that can repeatedly pass through holes. Background Art

[0002] A sealing ring, also known as a gasket, a sealing ring or an O-ring, is a device used to seal between two or more interconnected components. It is usually made of circular rubber, plastic, metal or other materials and has a circular or annular cross-section. The main function of the sealing ring is to prevent liquid, gas, dust, impurities or other media from leaking or penetrating through the gaps between the connecting components;

[0003] However, some of the existing combined sealing rings have a relatively simple structure and are made of simple rubber ring combinations. They cannot work for a long time in a high-pressure environment, and the sealing ring may break, resulting in leakage of media such as liquid or gas, which greatly affects the sealing effect and the short service life of the combined sealing ring. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that the existing sealing ring has a relatively simple structure, cannot adapt to a high-pressure environment, and has a short service life in a high-pressure environment.

[0005] To solve the above problems, the technical solution adopted by the utility model is a high-pressure combined sealing ring that can repeatedly pass through holes, including an outer washer. The inner side of the outer washer is filled with a rubber ring, and several combined elastic steel sheet structures are arranged inside the rubber ring. The combined elastic steel sheet structure includes two pairs of water-drop-shaped combined steel sheets, and the adjacent two pairs of water-drop-shaped combined steel sheets are arranged at 180 degrees. Sealing ring grooves are arranged on both the upper and lower sides of the outer washer, and sealing gaskets are hermetically sealed in the sealing ring grooves.

[0006] As a further scheme of the utility model: several elliptical cross-section annular empty grooves are arranged near the inner side of the outer washer to reserve space for the expansion and contraction of the inner rubber ring and the combined elastic steel sheet structure.

[0007] As a further scheme of the utility model: the water-drop-shaped combined steel sheet is composed of two separate arc-shaped steel sheets. The arc-shaped steel sheet includes an arc section and fixed sections located at both ends of the arc section, and the fixed sections are located in the sealing ring groove to facilitate fixing the position of the water-drop-shaped combined steel sheet.

[0008] As a further scheme of the utility model: the several combined elastic steel sheet structures do not contact each other to prevent interference.

[0009] As a further scheme of the utility model: the combined elastic steel sheet structure penetrates through the rubber ring and the outer washer to facilitate better auxiliary support.

[0010] The advantages of the present utility model compared with the prior art are as follows: This patent adds a combined elastic steel sheet structure. Through several groups of water-drop-shaped combined steel sheet structures for auxiliary support, the high-pressure resistance performance and rebound life of the sealing ring body can be effectively improved, and the service life of the sealing ring can be prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 It is a three-dimensional view of the overall structure in a high-pressure combined sealing ring with repeated through-holes of the present utility model.

[0013] Figure 2 It is a schematic diagram of the combined elastic steel sheet structure in a high-pressure combined sealing ring with repeated through-holes of the present utility model.

[0014] Figure 3 It is a schematic diagram of the water-drop-shaped combined steel sheet structure in a high-pressure combined sealing ring with repeated through-holes of the present utility model.

[0015] Figure 4 It is a cross-sectional view of the overall structure in a high-pressure combined sealing ring with repeated through-holes of the present utility model.

[0016] Figure 5 It is an enlarged view of the structure at part A in a high-pressure combined sealing ring with repeated through-holes of the present utility model.

[0017] In the drawings:

[0018] 1. Outer washer; 2. Rubber ring; 3. Combined elastic steel sheet structure; 4. Sealing washer; 1.1. Sealing ring groove; 1.2. Oval cross-section annular empty groove; 3.1. Water-drop-shaped combined steel sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a technical solution: to solve the existing problems raised in the background art.

[0021] Combined with the attached Figure 1 、 4, 5, it can be known that the sealing ring includes an outer washer 1, a rubber ring 2 is filled inside the outer washer 1, and a plurality of combined elastic steel sheet structures 3 are arranged inside the rubber ring 2 for auxiliary support. Sealing ring grooves 1.1 are arranged on both the upper and lower sides of the outer washer 1, and sealing washers 4 are arranged in the sealing ring grooves 1.1 for high-pressure sealing to limit the position of the combined elastic steel sheet structure 3; a plurality of elliptical cross-section annular empty grooves 1.2 are arranged near the inner side inside the outer washer 1 to reserve space for the expansion and contraction of the inner rubber ring 2 and the combined elastic steel sheet structure 3; the arc-shaped steel sheet includes an arc section and fixed sections located at both ends of the arc section, and the fixed sections are located in the sealing ring grooves 1.1 to facilitate the fixation of the position of the water-drop-shaped combined steel sheet 3.1; the combined elastic steel sheet structure 3 penetrates through the rubber ring 2 and the outer washer 1 to facilitate better auxiliary support;

[0022] Combined with the attached Figure 2 , 3 , it can be seen that the combined elastic steel sheet structure 3 includes two pairs of water-drop-shaped combined steel sheets 3.1, and the adjacent two pairs of water-drop-shaped combined steel sheets 3.1 are arranged at 180 degrees. The water-drop-shaped combined steel sheet 3.1 is composed of two separate arc-shaped steel sheets, and the plurality of combined elastic steel sheet structures 3 do not contact each other to prevent obstruction;

[0023] The working principle of this application is as follows: When the washer is sealed, the upper and lower sides of the washer will be subjected to pressure extrusion. When the upper and lower sides of the washer, that is, the sealing washers 4, are subjected to pressure, the pressure will be transmitted to the plurality of combined elastic steel sheet structures 3 located between the two sealing washers 4. After receiving the pressure, the plurality of combined elastic steel sheet structures 3 will cooperate with the rubber ring 2 to absorb the pressure. Through the buffering of the two oppositely installed arc-shaped steel sheets in the two pairs of water-drop-shaped combined steel sheets 3.1, the pressure received by the sealing ring can be effectively relieved, so that the overall deformation amount received by the sealing ring is reduced, and thus the service life is improved.

[0024] The above describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A repeatedly-viaable high-pressure combined sealing ring, comprising an outer washer (1), characterized in that: The inner side of the outer washer (1) is filled with a rubber ring (2), and a number of combined elastic steel sheet structures (3) are arranged inside the rubber ring (2). The combined elastic steel sheet structure (3) includes two pairs of water-drop-shaped combined steel sheets (3.1), and the adjacent two pairs of water-drop-shaped combined steel sheets (3.1) are arranged at 180 degrees. Sealing ring grooves (1.1) are arranged on both the upper and lower sides of the outer washer (1), and sealing washers (4) are arranged in the sealing ring grooves (1.1) for high-pressure sealing.

2. The high-pressure combined sealing ring capable of repeated vias according to claim 1, wherein: A number of elliptical cross-section annular empty grooves (1.2) are arranged near the inner side of the outer washer (1).

3. The high-pressure combined sealing ring with repeatedly virable holes according to claim 1, characterized in that: The water-drop-shaped combined steel sheet (3.1) is composed of two separate arc-shaped steel sheets. The arc-shaped steel sheet includes an arc section and fixed sections located at both ends of the arc section, and the fixed sections are located in the sealing ring groove (1.1).

4. The reusable through-hole high-pressure combined sealing ring according to claim 1, characterized in that: The a number of combined elastic steel sheet structures (3) do not contact each other.

5. The high-pressure combined sealing ring capable of repeated vias according to claim 1, wherein: The combined elastic steel sheet structure (3) penetrates through the rubber ring (2) and the outer washer (1).

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