CN204493699U - Triangle convex ring for sealing circle - Google Patents

Abstract

A triangular convex ring seal ring is provided, which has a seal ring body, the seal ring body is an O-shaped ring structure, the cross-sectional shape of the seal ring body is E-shaped, and the inner surface of the seal ring body is slightly convex On the circular arc surface, a plurality of triangular protruding rings with different diameters are symmetrically formed on the upper and lower working surfaces of the sealing ring body, and the triangular protruding rings and the sealing ring body are integrally formed. The utility model uses a plurality of triangular convex rings with different diameters symmetrically formed on the upper and lower working surfaces of the O-shaped sealing ring body. When the sealing surface of the valve parts is sealed by the flange fastening force, the sealing ring working surface The triangular convex ring and the sealing surface of the valve parts form a multi-layer tight combination, so as to play the role of good sealing effect, dustproof and small flange fastening force.

Description

Triangular raised ring seal

technical field

The utility model belongs to the technical field of sealing parts manufacturing, in particular to a triangular protruding ring sealing ring.

Background technique

Seals are parts that prevent fluid, gas or solid particles from leaking from adjacent joint surfaces, and prevent external impurities such as dust and moisture from intruding into the interior of machinery and equipment. They are important components to prevent and reduce environmental pollution. They are widely used in national defense, In the major industries of the national economy such as chemical industry, petroleum, coal, transportation and machinery manufacturing, the working reliability and service life of the seals are an important indicator to measure the quality of the hydraulic system. Nowadays, the production and quality of sealing products in our country have gradually entered a new stage, but these are far from meeting the needs of the development of all industries for sealing products. For example, for valves, because valves control the direction of fluid in the fluid system, The pressure and flow device is a device that makes or stops the medium in the piping and equipment and controls its flow, so the sealing performance of the valve is one of the main indicators of the quality of the valve, especially for some large and relatively large When the end faces of valve components are sealed and connected, not only the end faces on both sides of the valve are required to be well sealed, dust-proof and leak-proof, but also the tightening torque of the connecting end flanges is required to be small. In order to solve this problem, it is necessary to propose improvements.

Utility model content

The technical problem solved by the utility model is to provide a triangular convex ring sealing ring, which adopts a plurality of triangular convex rings with different diameters symmetrically formed on the upper and lower working surfaces of the O-shaped sealing ring body, as the sealing surface of the valve parts When it is sealed by the flange fastening force, the triangular convex ring on the working surface of the sealing ring forms a multi-layer tight combination with the sealing surface of the valve parts, so as to achieve good sealing effect, dustproof and small flange fastening force.

The technical solution adopted by the utility model: the triangular convex ring seal ring has a seal ring body, the seal ring body is an O-shaped ring structure, the cross-sectional shape of the seal ring body is E-shaped, and the seal ring body The inner surface is a slightly convex arc surface, and a plurality of triangular protruding rings with different diameters are symmetrically formed on the upper and lower working surfaces of the sealing ring body, and the triangular protruding rings and the sealing ring body are integrally formed.

Wherein, three triangular protruding rings with different diameters are formed on the upper and lower working surfaces of the sealing ring body to form three circles of linear seals, and each of the triangular protruding rings is coaxial with and adjacent to the sealing ring body. The roots of the two triangular protruding rings are connected, and the cross-section of the triangular protruding rings is an isosceles triangle with equal sides.

Further, the sealing ring body and the triangular convex ring are an integrated elastic sealing structure made of rubber.

The utility model has the advantages compared with the prior art:

1. A plurality of triangular protruding rings with different diameters are symmetrically made on the upper and lower working surfaces of the O-shaped sealing ring body to form a 3-circle linear seal. When the sealing surface of the valve parts is sealed by the flange fastening force , the triangular convex ring on the working surface of the sealing ring forms a multi-layer tight combination with the sealing surface of the valve parts through plastic deformation, thereby eliminating the gap, and has the functions of good sealing effect, dustproof and small flange fastening force;

2. The main material of the sealing ring is rubber, which is dense and not easy to leak the working medium. It has good adaptability and stability, good compressibility and recovery, small permanent deformation, corrosion resistance, good resilience, good aging resistance, and long service life. long;

3. The cross section adopts E-shaped section, which is easy to install and locate when using;

4. The utility model is especially suitable for the sealing connection of the end faces of large and relatively large valve parts. When in use, it only needs to process a groove of a certain shape on the valve sealing surface to install, and the sealing surface of the parts does not need to be finished;

5. The utility model has reliable sealing, simple structure, compact size and convenient use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is an enlarged view of part I of Fig. 2 .

Detailed ways

Below in conjunction with accompanying drawing 1-3 describe embodiment of the present utility model.

The triangular convex ring seal ring has a seal ring body 1, the seal ring body 1 is an O-shaped ring structure, and the cross section 2 of the seal ring body 1 is E-shaped, and the E-shaped cross section is adopted, which is easy to install and Easy to locate; the inner surface of the sealing ring body 1 is a slightly convex arc surface 4, and the upper and lower working surfaces of the sealing ring body 1 are symmetrically formed with a plurality of triangular convex rings 3 with different diameters. The ring 3 and the sealing ring body 1 are integrally formed. Three triangular convex rings with different diameters are formed on the upper and lower working surfaces of the sealing ring body 1 to form three linear seals. 3, each triangular convex ring The rings 3 are coaxial with the sealing ring body 1 and connected to the roots of two adjacent triangular protruding rings 3. The section of the triangular protruding ring 3 is an isosceles triangle with equal sides, and two upper and lower O-shaped sealing ring bodies are used. A plurality of triangular protruding rings with different diameters are symmetrically made on the working surface. When the sealing surface of the valve parts is sealed by the flange fastening force, the triangular protruding rings on the working surface of the sealing ring form with the sealing surface of the valve parts through plastic deformation. The multi-layers are closely combined to eliminate the gap, and have the functions of good sealing effect, dustproof and small flange fastening force; the sealing ring body 1 and the triangular convex ring 3 are an integral elastic sealing structure made of rubber, and the rubber The material is dense, not easy to leak the working medium, good adaptability and stability, good compressibility and recovery, small permanent deformation, corrosion resistance, good resilience, good aging resistance, and long service life.

The utility model is especially suitable for the end face sealing connection of large and relatively large valve components. When in use, only a groove of a certain shape is processed on the valve connection surface, and the sealing ring and the groove are fitted and installed. The fastening of the flange can play the role of sealing and dustproof, and the sealing end face of the part does not need to be finished, the processing cost is low, and it has the advantages of reliable sealing, simple structure, compact size and convenient use.

The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model, so all equivalent changes made with the contents of the claims of the present utility model should be included in the claims of the present utility model. within the scope of requirements.

Claims (3)

1. Triangular convex ring sealing ring, with a sealing ring body (1), characterized in that: the sealing ring body (1) is an O-ring structure, and the cross-section (2) shape of the sealing ring body (1) is E-shaped, the inner surface of the sealing ring body (1) is a slightly convex arc surface (4), and the upper and lower working surfaces of the sealing ring body (1) are symmetrically formed with a plurality of triangular convex surfaces with different diameters. ring (3), the triangular protruding ring (3) and the sealing ring body (1) are integrally formed. 2. The triangular protruding ring sealing ring according to claim 1, characterized in that: three triangular protruding rings (3) with different diameters are formed on the upper and lower working surfaces of the sealing ring body (1). Each of the triangular protruding rings (3) is coaxial with the sealing ring body (1) and connected to the roots of two adjacent triangular protruding rings (3), and the section of the triangular protruding rings (3) is an isosceles triangle with equal sides . 3. The triangular convex ring sealing ring according to claim 1 or 2, characterized in that: the sealing ring body (1) and the triangular convex ring (3) are an integral elastic sealing structure made of rubber.