CN213808258U

CN213808258U - Miniature plug type one-way hydraulic valve structure

Info

Publication number: CN213808258U
Application number: CN202021472950.1U
Authority: CN
Inventors: 杭飞鹏
Original assignee: Jiangsu Naimaxin Precision Machinery Co ltd
Current assignee: Jiangsu Naimaxin Precision Machinery Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-07-27
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to a miniature end cap formula check hydraulic valve structure, including valve body, case, end cover and spring, be equipped with the oil liquid hole on the valve body, the bottom intercommunication in oil liquid hole has the inflow hole, has the outflow hole on the end cover to fixed connection is in the one end in oil liquid hole, and the one end of spring supports on the end cover, and the other end supports on the case, and the case includes valve rod and piston, and the valve rod stretches into in the outflow hole of end cover, the oil groove is led to the axial that has a perfect understanding all to the periphery of valve rod and piston, the periphery of valve body is equipped with the external screw thread, and the tip of valve body has the flange limit. The utility model discloses can have the check valve function, can also the screw thread install and play the end cap effect at the hydraulic pressure pipeline tip, use cost is low, and sealing performance is good.

Description

Miniature plug type one-way hydraulic valve structure

Technical Field

The utility model relates to a miniature end cap formula one-way hydraulic valve structure.

Background

The check valve is a control element in the hydraulic pipeline and can control the circulation and the disconnection of hydraulic oil. Traditional check valve often installs at the pipeline tip, can't with pipeline threaded connection, still need install the end cap in addition on the pipeline, causes use cost to increase. And the traditional micro hydraulic valve usually adopts a steel ball as a valve core, and has poor sealing performance.

Disclosure of Invention

An object of the utility model is to provide a can have the check valve function, can also install at the hydraulic line tip by the screw thread and play the end cap effect, the miniature end cap formula one-way hydraulic valve structure that sealing performance is good.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a miniature end cap formula check hydraulic valve structure, includes valve body, case, end cover and spring, be equipped with the oil liquid hole on the valve body, the bottom intercommunication in oil liquid hole has the inflow hole, has the outflow hole on the end cover to fixed connection is in the one end in oil liquid hole, and the one end of spring supports on the end cover, and the other end supports on the case, and the case includes valve rod and piston, and the valve rod stretches into in the outflow hole of end cover, the periphery of valve rod and piston all has the axial oil guide groove that link up, the periphery of valve body is equipped with the external screw thread, and the tip of valve body has the flange limit.

Preferably, an axial groove is formed in the inner side of the flange edge of the valve body, and an ED sealing ring is arranged in the axial groove. The sealing function is achieved after the installation.

Preferably, the end cover is in threaded connection with one end of the oil hole. The end cover installation efficiency is high.

Preferably, the end cover is provided with a boss, and one end of the spring is sleeved on the boss. The spring is ensured not to be installed and deflected.

Preferably, a sealing gasket is arranged on the piston of the valve core and is positioned at the inflow hole. The sealing effect is ensured.

After the structure of the oil-water mixing valve is adopted, the utility model discloses a valve body, case, end cover and spring for the control of hydraulic oil, the part is few, and use cost is low. And the end cover adopts a clamping structure, so that the mounting efficiency is high. The hydraulic pipe can be arranged at the end part of the hydraulic pipeline in a threaded manner to play a role of a plug, and the use cost is low.

Drawings

Fig. 1 is a sectional view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrated in the accompanying drawings.

Referring to fig. 1, a miniature plug type one-way hydraulic valve structure includes a valve body 1, a valve core 2, an end cover 3 and a spring 4, the valve body 1 is provided with an oil hole 11, the bottom of the oil hole 11 is communicated with an inflow hole 12, the end cover 3 is provided with an outflow hole 31 and is fixedly connected to one end of the oil hole 11, one end of the spring 4 is abutted to the end cover 3, the other end is abutted to the valve core 2, the valve core 2 includes a valve rod 21 and a piston 22, the valve rod 21 extends into the outflow hole 31 of the end cover 3, the peripheries of the valve rod 21 and the piston 22 are provided with a through axial oil guide groove 23, the periphery of the valve body 1 is provided with an external thread, and the end of the valve body 1 is provided with.

Referring to fig. 1, an axial groove 5 is formed in the inner side of the flange edge 14 of the valve body 1, and an ED sealing ring 6 is arranged in the axial groove 5. The valve body 1 is of a cylindrical structure and is convenient to assemble with an external connecting part, and the ED sealing ring 6 can ensure the sealing performance after installation.

Referring to fig. 1, the end cap 3 is screwed to one end of the oil hole 11. The sealing performance is ensured, and the installation efficiency can be improved.

Referring to fig. 1, a boss 32 is provided on the end cap 3, and one end of the spring 4 is sleeved on the boss 32. The boss 32 ensures that the spring 4 is centered after installation and the spring 4 does not deflect.

Referring to fig. 1, the piston 22 of the valve core 2 is provided with a gasket 7, and the gasket 7 is positioned at the inflow hole 12. The gasket 7 can block the inflow hole 12 to ensure sealing performance.

The utility model discloses a theory of operation: referring to fig. 1, when hydraulic oil enters from an inlet hole 12 at the lower part of a valve body 1, a valve core 2 provided with a sealing gasket 7 is pushed upwards, the valve core 2 pushes a spring 4 upwards, the hydraulic valve is opened, the hydraulic oil flows out from an outlet hole 31 of an end cover 3 upwards through two oil guide grooves 23 on the valve core, and the oil guide grooves 23 are three in three. When the hydraulic oil enters the hydraulic valve from the outflow hole 31 on the end cover 3, the valve core 2 provided with the sealing gasket 7 is squeezed more tightly. The hydraulic valve is closed and hydraulic oil cannot pass through. The valve rod 21 of the upper section of the valve core 2 penetrates into the inner hole of the outflow hole 31 of the end cover 3 to play a role in guiding and avoid the valve core 2 from shaking. The one-way hydraulic valve plays a role in sealing with an external connecting part through an ED sealing ring 6 arranged in an axial groove 5.

The utility model discloses during the installation, at first the case 2 of packing into in valve body 1, secondly put into spring 4, then put end cover 3 on 1 upper portion of valve body, the boss 32 of end cover 3 penetrates spring 4 in the middle of, then rotatory end cover 3 assembles with valve body 1, is equipped with ED sealing washer 6 in valve body 1's axial groove 5 again. The one-way hydraulic valve is connected and sealed with an external connected part through an external thread and an ED sealing ring 6.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. The utility model provides a miniature end cap formula one-way hydraulic valve structure which characterized in that: including valve body (1), case (2), end cover (3) and spring (4), be equipped with fluid hole (11) on valve body (1), the bottom intercommunication of fluid hole (11) has inflow hole (12), has outflow hole (31) on end cover (3) to fixed connection is in the one end of fluid hole (11), and the one end of spring (4) supports on end cover (3), and the other end supports on case (2), and case (2) include valve rod (21) and piston (22), and valve rod (21) stretch into in outflow hole (31) of end cover (3), the periphery of valve rod (21) and piston (22) all has axial oil guide groove (23) that link up, the periphery of valve body (1) is equipped with the external screw thread, and the tip of valve body (1) has flange limit (14).

2. A miniature block-type one-way hydraulic valve structure according to claim 1, wherein: an axial groove (5) is formed in the inner side of a flange edge (14) of the valve body (1), and an ED sealing ring (6) is arranged in the axial groove (5).

3. A miniature block-type one-way hydraulic valve structure according to claim 1, wherein: the end cover (3) is in threaded connection with one end of the oil hole (11).

4. A miniature block-type one-way hydraulic valve structure according to claim 1, wherein: the end cover (3) is provided with a boss (32), and one end of the spring (4) is sleeved on the boss (32).

5. A miniature block-type one-way hydraulic valve structure according to claim 1, wherein: and a sealing gasket (7) is arranged on the piston (22) of the valve core (2), and the sealing gasket (7) is positioned at the inflow hole (12).