CN211779196U

CN211779196U - Line sealing one-way valve with conical valve

Info

Publication number: CN211779196U
Application number: CN201922373615.XU
Authority: CN
Inventors: 朱粤松; 刘培毅
Original assignee: Jincheng Nanjing Electromechanical Hydraulic Pressure Engineering Research Center Aviation Industry Corp of China
Current assignee: Jincheng Nanjing Electromechanical Hydraulic Pressure Engineering Research Center Aviation Industry Corp of China
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-27
Anticipated expiration: 2029-12-25

Abstract

The utility model belongs to the field of fluid transmission control, and provides a conical valve line sealing one-way valve, which comprises a shell (1), a valve (2), a spring (3), a spring seat (4), a sealing gasket (5) and a pipe joint (6); the sharp edge of the inner cavity of the shell (1) is matched and sealed with the conical surface of the valve (2); sealing gasket (5) is installed at casing (1) step downthehole, and screwed up moment is applyed with casing (1) threaded connection in coupling (6), and sealing gasket (5) receive extrusion deformation, sets up spring holder (4) in coupling (6) left end hole, and spring (3) are by valve (2) hole and spring holder (4) fixed position. The utility model discloses toper valve line seal check valve through the design to form and position tolerance, roughness and the hardness of casing and valve, and reasonable assembly method, realizes the function of product and the performance that interior, outside all did not have the leakage.

Description

Line sealing one-way valve with conical valve

Technical Field

The invention belongs to the field of fluid transmission control, and relates to a linear sealing one-way valve of a conical valve.

Background

The one-way valve used in the existing hydraulic system has large volume, mostly adopts a sealing structure form of a steel ball and a sealing seat, and has high processing requirement and high difficulty of the steel ball, so that the requirements of long service life and no internal leakage are difficult to achieve. The external sealing of the same type of one-way valve mostly adopts a non-metal sealing structure form, and the structural form can cause short service life of products and is not beneficial to storage and maintenance.

Disclosure of Invention

The purpose of the invention is: the linear sealing one-way valve with the conical valve is simple in structure, easy to maintain and free of leakage.

The technical solution of the invention is as follows:

a conical valve linear sealing one-way valve comprises a shell 1, a valve 2, a spring 3, a spring seat 4, a sealing gasket 5 and a pipe joint 6;

the sharp edge of the inner cavity of the shell 1 is matched and sealed with the conical surface of the valve 2; sealing pad 5 is installed at 1 step hole of casing, and pipe connection 6 and 1 threaded connection of casing apply tightening torque, and sealing pad 5 receives extrusion deformation, sets up spring holder 4 in the 6 left end holes of pipe connection, and spring 3 is by 2 hole of valve and 4 fixed positions of spring holder.

The conical surface of the valve 2 is propped against the sharp edge of the inner cavity of the shell 1 to form linear sealing.

The sharp edge part inside the shell 1 is provided with a 120-degree chamfer.

The angle of the conical surface of the valve 2 is smaller than the internal sharp edge chamfer of the shell 1.

The throughflow openings in the housing 1 are dimensioned according to the flow rate.

An annular groove is arranged in an inner hole of the valve 2, and a spring 3 is fixed.

The invention has the beneficial effects that: the design such as form and position tolerance and roughness to casing sharp limit position and valve conical surface position can guarantee that the inside leakage rate of product is 0, and through the tight moment of screwing up when the assembly makes the sealed pad extrusion deformation, guarantees that the outside leakage rate of product is 0. The one-way valve parts of the structure are all metal parts and do not contain non-metal parts, so that the reliability of the product is high, and great convenience is brought to use and maintenance.

Drawings

Fig. 1 is a conical valve linear sealing one-way valve, which comprises a shell 1, a valve 2, a spring 3, a spring seat 4, a sealing gasket 5 and a pipe joint 6.

Fig. 2 is a partial enlarged view of the structure of an embodiment of the linear sealing check valve of the cone valve.

Detailed Description

The invention is described in further detail below with reference to the drawings.

Referring to fig. 1, a conical valve line sealing one-way valve includes a housing 1, a valve 2, a spring 3, a spring seat 4, a sealing gasket 5, and a pipe joint 6.

Fig. 2 is a partially enlarged view of the housing 1 and the shutter 2. The sharp edge of the shell 1 is provided with an obtuse angle, so that the strength of the sharp edge is increased, and the angle of the conical surface of the valve 2 is smaller than that of the chamfer angle at the sharp edge 1 of the shell, so that the sealing fit of the line is ensured.

A taper valve linear sealing one-way valve, a shell 1 sharp edge and a valve conical surface 2 are linearly sealed. The sealing gasket 5 is arranged in a step hole of the shell, the pipe joint 6 is in threaded connection with the shell 1 and applies tightening torque, and the sealing gasket 5 is extruded and deformed to ensure that no external leakage exists in the product. The sharp edge part inside the shell 1 is provided with a 120-degree chamfer, so that the strength of the sharp edge at the matching part is increased. The through-flow holes in the shell 1 can be set to different sizes as required, so that different flow requirements are ensured. The angle of the conical surface of the valve 2 is smaller than the internal sharp edge chamfer of the shell 1, and the oil through holes on the conical surface can be set with different apertures and numbers according to different flow requirements. An inner hole ring groove is arranged in the valve to fix the spring.

Claims

1. A conical valve linear sealing one-way valve is characterized by comprising a shell (1), a valve (2), a spring (3), a spring seat (4), a sealing gasket (5) and a pipe joint (6);

the sharp edge of the inner cavity of the shell (1) is matched and sealed with the conical surface of the valve (2); sealing gasket (5) is installed at casing (1) step downthehole, and screwed up moment is applyed with casing (1) threaded connection in coupling (6), and sealing gasket (5) receive extrusion deformation, sets up spring holder (4) in coupling (6) left end hole, and spring (3) are by valve (2) hole and spring holder (4) fixed position.

2. A linear sealing one-way valve with conical valve as claimed in claim 1, characterized in that the conical surface of the valve (2) forms a linear seal against the sharp edge of the inner cavity of the housing (1).

3. A linear sealing check valve of cone valve according to claim 2, characterized in that the inner sharp edge of the case (1) has 120 ° chamfer.

4. A linear sealing check valve with conical valve as claimed in claim 2, characterized in that the angle of the conical surface of the valve (2) is smaller than the internal sharp chamfer of the housing (1).

5. A cone trap wire seal check valve as claimed in claim 1 characterized by the flow through holes in the housing (1) being sized according to flow rate.

6. A linear sealing check valve with cone valve as claimed in claim 1, characterized by that the valve (2) has a ring groove in its inner hole to fix the spring (3).