CN2531225Y

CN2531225Y - Pipeline sealing element

Info

Publication number: CN2531225Y
Application number: CN 02215811
Authority: CN
Inventors: 潘鑫钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-20
Filing date: 2002-02-20
Publication date: 2003-01-15
Anticipated expiration: 2012-02-20

Abstract

The utility model discloses a pipeline sealing part which comprises a body I and a body II, which are shaped like a big and small cylinder. The inner wall of the body I is a cone sealing surface with a conical angle Alpha. A ring shape sealing lip which extends from the cone sealing surface forms a ring ditch with the inner wall of the body II. A ring groove is arranged between the lower edge of the body I and the body II. The lower end part of the body II is an end surface sealing ring. The utility model can automatically execute bidirectional sealing and has good sealing performance and long service life. Moreover, the utility model can prevent the end part of pipe fittings from being corroded by the corrosion of chemical engineering materials. Besides, the utility model is capable of bearing pressure over 50 kg. Therefore, the utility model can ensure non-leakage for pipelines which are used for transporting gas, oil, water, and chemical engineering fluid etc.

Description

Conduit seals

Technical field

The utility model relates to the sealing component of rigid conduit.

Background technique

In the rigid conduit of materials such as the various gas of conveyance fluid, oil, water, chemical industry; Sealing is to influence the vital part that pipe fitting connects sealing; common Sealing is circular " O " RunddichtringO or planar seal ring mostly; but these sealing property of sealing component are poor; working life is short; can't be subjected to protections such as industrial chemicals erosion, oxidation, corrosion to bilayer gummed pipe (outer stainless steel, interior plastics), the plastic-aluminum pipe pipe fitting ends such as (outer-aluminium-inner-plastic material) of modern extensive use; it is low to bear pressure, easily causes pipeline to leak gas, leak, cause environmental pollution.

Summary of the invention

Technical problem to be solved in the utility model be overcome the defective of prior art and provide a kind of good seal performance, long service life, can be to the conduit seals of pipe fitting end protection.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: conduit seals, it is characterized in that the sealing part is made up of the body I and the body II of big or small tubular, body I inwall is that cone angle is the circular cone sealing surface of α, that is extended by the circular cone sealing surface forms the annular seal lip of circular groove with body II inwall, be provided with annular groove between body I lower edge and the body II, body II underpart is an end face sealing ring.

Compared with prior art; this Sealing is owing to have circular cone sealing surface and annular seal lip and end face sealing ring with circular groove and annular groove; make its with the combining of rigidity pipe fitting in not only high resilience; can reach two-way from motive sealing; simultaneously can protect the pipe fitting end face, its good seal performance, long service life; can bear 50kg with upward pressure, in carrying fluid circuits such as gas, oil, water, chemical industry, guarantee not leak and drip.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the application state figure of the utility model in pipe joint.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Conduit seals 1 (referring to Fig. 1-2) is made up of the body I2 and the body II7 of big or small tubular.Body I inwall is that cone angle alpha is 22 °～25 ° a circular cone sealing surface 3, and ° be optimum scheme with α=23.5, that is extended by the circular cone sealing surface forms the annular seal lip 4 of circular groove 5 with body II inwall, is provided with annular groove 6 between body I lower edge and the body II, and body II bottom is an end face sealing ring 8.

This Sealing 1 is when user mode, as be used for sealing between main body 13 (double-deck qi gummed pipe or plastic-aluminum pipe) and the swivel nut 9, the circular cone sealing surface of Sealing is convenient to the assembling with main body, because the existence of circular groove and annular groove, make annular seal lip have preferably elasticity and tightly obvolvent on main body, fastening by nut 12 and swivel nut 9 promoted and the packing ring 10 and the jump ring 11 of axial displacement by nut, makes the Sealing resiliently deformable play better inside and outside two-way automatic seal action.

The end face sealing ring 8 of this Sealing 1 again tightly obvolvent on the end face of main body 13, the metal end face of the main body of being made by bilayer gummed pipe or plastic-aluminum pipe is protected, can be by the oxidation of industrial chemicals fluid, corrosion.

Claims

1. conduit seals, it is characterized in that sealing part (1) is made up of the body I (2) and the body II (7) of big or small tubular, body I inwall is that cone angle is the circular cone sealing surface (3) of α, that is extended by the circular cone sealing surface forms the annular seal lip (4) of circular groove (5) with body II inwall, be provided with annular groove (6) between body I lower edge and the body II, body II underpart is end face sealing ring (8).

2. conduit seals according to claim 1, the cone angle alpha that it is characterized in that described circular cone sealing surface (3) are 22 °～25 °.