CN219263348U

CN219263348U - Pressure gauge switch valve

Info

Publication number: CN219263348U
Application number: CN202222555820.XU
Authority: CN
Inventors: 王春峰; 张小林; 李正桃; 曹云
Original assignee: Hualai Changzhou Hydraulic Technology Co ltd
Current assignee: Hualai Changzhou Hydraulic Technology Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-06-27
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a pressure gauge switch valve, which comprises a valve body, wherein a valve seat is arranged on the upper thread of the valve body, a movable nut is arranged on the upper thread of the valve seat, one end of the valve body is provided with a mounting opening, an oil inlet pipe is arranged in the mounting opening, a movable groove is arranged in the other end of the valve body, the movable groove is communicated with the oil inlet pipe, a valve core is movably arranged in the movable groove, a sealing ring and a sealing gasket are sleeved outside one end of the valve core, which is close to the oil inlet pipe, the outer wall of the sealing ring and the sealing gasket are attached to the inner wall of the movable groove, a damping hole is arranged above one end, which is close to the oil inlet pipe, of the movable groove, a clamping ring is arranged on the inner wall of one side, which is far away from the oil inlet pipe, of the movable groove is provided with a circle of clamping groove, and the outer wall of the valve core is provided with a circle of clamping groove.

Description

Pressure gauge switch valve

Technical Field

The utility model relates to the technical field of switching valves, in particular to a pressure gauge switching valve.

Background

The main function of the pressure gauge of the hydraulic machine is to facilitate observation that the pressure of liquid is insufficient to the working standard when the hydraulic machine is operated, but the pressure gauge does not need to be opened for a long time in the working process of the hydraulic machine, and the pressure gauge is closed once the pressure gauge reaches the requirement.

Because the pressure gauge also belongs to mechanical devices, when liquid passes through the internal machinery of the pressure gauge, the pressure can be generated on the internal machinery of the pressure gauge, and if the pressure gauge is in a working state for a long time, the pressure gauge is easy to damage and cause pressure gauge disorder.

Therefore, the pressure gauge is generally provided with a switch valve for cutting off oil liquid and closing the pressure gauge, most of the prior pipe valve adopts a soft sealing mode which is similar to a rubber plug sealing mode, but the soft sealing mode is easy to deteriorate and damage due to long-term liquid circulation in the pipe valve opening, needs to be replaced frequently, has higher rejection rate,

it is necessary to provide a pressure gauge switching valve to solve the above-mentioned problems.

Disclosure of Invention

Based on the above-mentioned problems existing in the prior art, an object of an embodiment of the present utility model is to: a pressure gauge switching valve is provided.

The technical scheme adopted for solving the technical problems is as follows: the pressure gauge switching valve comprises a valve body, a valve seat is arranged on the upper thread of the valve body, a first movable nut is arranged on the upper thread of the valve seat, a mounting opening is formed in one end of the valve body, a second movable nut is arranged on the outer thread of the mounting opening, an oil inlet pipe is arranged in the mounting opening, a movable groove is formed in the other end of the valve body, the movable groove is communicated with the oil inlet pipe, and a valve core is movably arranged in the movable groove.

Further, the sealing ring and the sealing gasket are sleeved outside one end of the valve core, which is close to the oil inlet pipe, and the outer wall of the sealing ring and the outer wall of the sealing gasket are attached to the inner wall of the movable groove, one end of the valve core, which is close to the oil inlet pipe, is conical, and the outer wall of the middle section of the valve core is in threaded connection with the inner wall of the middle section of the movable groove.

Further, a damping hole is formed above one end, close to the oil inlet pipe, of the movable groove, and the damping hole is communicated with the movable groove.

Further, a clamping ring is arranged on the inner wall of one side of the movable groove far away from the oil inlet pipe.

Further, a circle of clamping groove is formed in the outer wall of the valve core.

The beneficial effects of the utility model are as follows: according to the pressure gauge switching valve, the valve core is arranged, the traditional soft sealing mode is replaced by the conical hard sealing mode, the sealing performance is improved, and the pressure gauge switching valve is simple and convenient to install and easy to operate.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the working state of the present utility model;

wherein, each reference sign in the figure:

1. a valve body; 2. a movable nut I; 3. a valve seat; 4. a mounting port; 5. an oil inlet pipe; 6. a movable groove; 7. a valve core; 8. a seal ring; 9. a sealing gasket; 10. a clasp; 11. a clamping groove; 12. a damping hole; 13. and a movable nut II.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As shown in figures 1-2, the utility model provides a pressure gauge switch valve, which comprises a valve body 1, wherein a valve seat 3 is arranged on the upper thread of the valve body 1, the inside of the valve seat 3 is penetrated up and down, the valve body 1 is provided with the bottom of a threaded port of the valve seat 3, a section of cavity is formed in the cavity and communicated with the inside of the valve seat 3, a movable nut I2 is arranged on the upper thread of the valve seat 3, one end of the valve body 1 is provided with a mounting port 4, a movable nut II 13 is arranged on the outer thread of the mounting port 4, an external oil pipe is externally connected with the movable nut II 13, an oil inlet pipe 5 is arranged in the mounting port 4, a movable groove 6 is arranged in the other end of the valve body 1, the movable groove 6 is communicated with the oil inlet pipe 5, a valve core 7 is movably arranged in the movable groove 6, a sealing ring 8 and a sealing pad 9 are sleeved outside one end of the valve core 7, the sealing ring 8 and the outer wall of the sealing pad 9 are attached to the inner wall of the movable groove 6, one end of the valve core 7, which is close to the oil inlet pipe 5, the middle section of the valve core 7 is in a conical shape, and the outer wall of the valve core 7 is in threaded connection with the middle section of the movable groove 6.

A damping hole 12 is formed in the upper portion of one end, close to the oil inlet pipe 5, of the movable groove 6, the damping hole 12 is communicated with the movable groove 6 and a cavity below the valve seat 3, a clamping ring 10 is arranged on the inner wall of one side, far away from the oil inlet pipe 5, of the movable groove 6, the clamping ring 10 is a metal open loop, a circle of clamping groove 11 is formed in the outer wall of the valve core 7, and the size of the clamping ring 10 is matched with that of the clamping groove 11.

In this embodiment, the following will be described: the valve body 1 is communicated with an external pipeline through a second movable nut 13, a sealing strip is arranged at the inner opening of the mounting port 4, the upper side of the first movable nut 2 is connected with a pressure gauge in a threaded manner, oil enters the oil inlet pipe 5 from the mounting port 4, and the oil inside the oil inlet pipe 5 is led into the movable groove 6.

In the initial state, the triangular runner is fixed at one end of the valve core 7 protruding out of the valve body 1 through the screw, when the pressure in the valve body needs to be measured, the valve core 7 can be rotated through the triangular runner, the valve core 7 is outwards displaced for a certain distance, oil can flow into the damping hole 12 through the movable groove 6, the damping hole 12 is used for throttling and buffering, the pressure of the oil is prevented from being excessively high, the pressure gauge is prevented from being damaged, the oil enters the valve seat 3 through the damping hole 12, and then flows into the pressure gauge through the valve seat 3, and the pressure is detected.

Under the condition that the valve core 7 is separated from the joint of the movable groove 6 and the oil inlet pipe 5, the sealing ring 8 and the sealing gasket 9 can prevent oil from leaking, one end of the valve core 7, which is positioned at the opening of the movable groove 6, is provided with a conical surface, the clamping groove 11 is provided between the conical surface and the threaded joint of the valve core 7, and the distance between the threaded joint and the conical surface is the movable range of the clamping groove 11.

After the manometer works for a period of time, if pressure is stable, then the rotatory promotion case 7 of accessible triangle runner, the tip of case 7 is the toper, and the junction of advance oil pipe 5 and movable groove 6 also is equipped with the tapering, and the conical head of case 7 is laminated with the tapering of junction, blocks up movable groove 6, and snap ring 10 and draw-in groove 11 card are with, play the effect of strengthening case 7 and prevent the pine and take off, cut fluid at this moment, manometer stop work.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The pressure gauge switching valve comprises a valve body (1), and is characterized in that: the valve body is characterized in that the valve seat (3) is installed on the upper thread of the valve body (1), the movable nut I (2) is installed on the upper thread of the valve seat (3), the installation opening (4) is formed in one end of the valve body (1), the movable nut II (13) is installed on the outer thread of the installation opening (4), the oil inlet pipe (5) is formed in the installation opening (4), the movable groove (6) is formed in the other end of the valve body (1), the movable groove (6) is communicated with the oil inlet pipe (5), and the valve core (7) is movably installed in the movable groove (6).

2. The pressure gauge switching valve of claim 1, wherein: the valve core (7) is close to the outside cover of one end of advance oil pipe (5) and establishes and install sealing washer (8) and sealed pad (9), the outer wall and the laminating of movable groove (6) inner wall of sealing washer (8) and sealed pad (9), the one end that advance oil pipe (5) is close to in case (7) is the toper, the middle section outer wall and the middle section inner wall threaded connection of movable groove (6) of case (7).

3. The pressure gauge switching valve of claim 1, wherein: a damping hole (12) is formed above one end, close to the oil inlet pipe (5), of the movable groove (6), and the damping hole (12) is communicated with the movable groove (6).

4. The pressure gauge switching valve of claim 1, wherein: the inner wall of one side of the movable groove (6) far away from the oil inlet pipe (5) is provided with a clamping ring (10).

5. The pressure gauge switching valve of claim 1, wherein: a circle of clamping groove (11) is formed in the outer wall of the valve core (7).