CN217381790U

CN217381790U - Pressure reducing valve

Info

Publication number: CN217381790U
Application number: CN202220806181.7U
Authority: CN
Inventors: 王绍和; 杨少华; 杨森
Original assignee: Wenzhou Wanyu Valve Fittings Co ltd
Current assignee: Wenzhou Wanyu Valve Fittings Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-09-06
Anticipated expiration: 2032-04-08

Abstract

The utility model provides a pressure reducing valve, which comprises a valve body, the valve body in be equipped with pressure adjustment assembly, the valve body on be equipped with the pressure hole, pressure hole in be connected with the manometer, the manometer have with pressure hole threaded connection body of rod part, still include movable rod, spring, nut, sealing ring, the inside wall in pressure hole on be equipped with annular spacing portion, the movable rod connect in spacing portion, the lower extreme of movable rod stretches into the inside of valve body, the lower extreme of movable rod is equipped with the sealing, the sealing ring cup joint the movable rod on, the sealing ring is connected with the sealing, the upper end threaded connection of movable rod has the nut, the spring cup joints the lower extreme and the spacing portion counterbalance of spring on the movable rod, the upper end and the nut counterbalance of spring, the upper end and the body of rod part counterbalance of movable rod.

Description

Pressure reducing valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to relief pressure valve.

Background

The pressure hole of connecting the manometer is provided with on the valve body of relief pressure valve, and the manometer is connected in the pressure hole, and the manometer is used for measuring the pressure in the valve body, and the manometer also forms the shutoff to the pressure hole simultaneously. During the use, when dismantling and changing the manometer, the pressure port department can cause the valve body to leak in the state of opening for can't dismantle the change to the manometer on line.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a relief pressure valve, it can carry out online dismantlement and change the manometer.

The technical scheme of the utility model is realized like this:

the utility model provides a pressure reducing valve, includes the valve body, the valve body in be equipped with pressure regulation assembly, the valve body on be equipped with the pressure hole, the pressure downthehole manometer that is connected with, the manometer have with pressure hole threaded connection body of rod part, still include movable rod, spring, nut, sealing ring, the inside wall in pressure hole on be equipped with annular spacing portion, the movable rod connect in spacing portion, the lower extreme of movable rod stretches into the inside of valve body, the lower extreme of movable rod is equipped with the sealing, the sealing ring cup joint the movable rod on, the sealing ring is connected with the sealing, the upper end threaded connection of movable rod has the nut, the spring cup joints the lower extreme and the spacing portion of spring on the movable rod and offsets, the upper end and the nut of spring offset, the upper end and the body of rod part of movable rod offset.

Through adopting above-mentioned technical scheme, the movable rod can receive ascending power under the effect of spring for the sealed annular of movable rod lower extreme is to the sealed of pressure port, when the manometer was adorned, the body of rod part of manometer can push up the movable rod downwards, the spring is compressed, the manometer passes through the inside intercommunication of pressure port and valve body, after dismantling down the manometer like this, the movable rod can be automatic return under the effect of spring, form the sealed to the pressure port, the realization is dismantled the change to the manometer on line.

The utility model discloses further set up to, the lateral wall of movable rod on be equipped with the intercommunication groove, the intercommunication groove set up along the length direction of movable rod.

The utility model discloses further set up to, the inner wall of valve body on surround the position department of pressure hole and form planar sealed face, the sealing ring forms sealed cooperation with sealed face.

The utility model discloses further set up to, the valve body connect for the four-way valve body, have four valve ports, wherein two valve ports are inlet and liquid outlet respectively, are connected with pressure adjustment assembly on two other valve ports.

The utility model discloses further set up to, inlet and liquid outlet department be connected with the coupling respectively.

The utility model discloses further set up to, the inside wall of the upper end of pressure hole on be equipped with the internal thread, the lateral wall of body of rod part on be equipped with the external screw thread.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model provides a relief pressure valve, it sets up one in the pressure port and can carry out the subassembly sealed to the pressure port, comes to seal the pressure port through the sealing ring on the movable rod, when the manometer was loaded into, can push away the movable rod, makes the pressure port opened, manometer and the inside intercommunication of valve body, when dismantling the manometer, the movable rod return under the effect of spring forms the sealing to the pressure port, just so can dismantle the change maintenance to the manometer on line.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the pressure gauge connection of the present invention;

fig. 3 is a schematic structural view of the movable rod and the spring of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-3:

the pressure reducing valve comprises a valve body 1, wherein a pressure adjusting assembly is arranged in the valve body 1, a pressure hole 2 is formed in the valve body 1, a pressure gauge 3 is connected into the pressure hole 2, and the pressure gauge 3 is provided with a rod body part 31 in threaded connection with the pressure hole 2.

Still include movable rod 4, spring 5, nut 6, sealing ring 7, the inside wall of pressure hole 2 on be equipped with annular spacing portion 8, movable rod 4 connect spacing portion 8 in, the lower extreme of movable rod 4 stretches into the inside of valve body 1, the lower extreme of movable rod 4 is equipped with circular shape sealing 9, sealing ring 7 cup joint movable rod 4 on, sealing ring 7 is connected with sealing 9, the upper end threaded connection of movable rod 4 has nut 6, spring 5 cup joints on movable rod 4 the lower extreme of spring 5 and offsets with spacing portion 8, the upper end of spring 5 offsets with nut 6, the upper end of movable rod 4 offsets with body of rod part 31.

Through adopting the above technical scheme, movable rod 4 can receive ascending power under spring 5's effect, make sealing ring 7 of 4 lower extremes of movable rod form sealed to pressure port 2, when manometer 3 adorns, manometer 3's body of rod part 31 can push up movable rod 4 downwards, spring 5 is compressed, manometer 3 passes through pressure port 2 and valve body 1's inside intercommunication, like this after dismantling manometer 3, movable rod 4 can be at automatic return under spring 5's effect, form sealed to pressure port 2, the realization is dismantled change to manometer 3 on line.

The side wall of the movable rod 4 is provided with a communicating groove 10, and the communicating groove 10 is arranged along the length direction of the movable rod 4. When the movable rod 4 moves in the valve body, the inside of the valve body can be communicated with the pressure hole through the communicating groove 10.

The inner wall of the valve body 1 is provided with a plane sealing surface 11 at the position surrounding the pressure hole 2, and the sealing ring 7 is in sealing fit with the sealing surface 11. The cover 11 is arranged to cooperate with the sealing ring 7 to form a better sealing condition.

The valve body 1 is a four-way valve body 1 joint and is provided with four valve ports, wherein two valve ports are respectively a liquid inlet and a liquid outlet, and the other two valve ports are connected with pressure adjusting components.

The liquid inlet and the liquid outlet are respectively connected with a pipe joint 12.

The inner side wall of the upper end of the pressure hole 2 is provided with an internal thread, and the outer side wall of the rod body part 31 is provided with an external thread.

Adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model provides a pressure reducing valve, it sets up one in pressure port 2 and can carry out the subassembly sealed to pressure port 2, seal up pressure port 2 through sealing ring 7 on the movable rod 4, when manometer 3 adorns, can push away movable rod 4, make pressure port 2 opened, manometer 3 and 1 inside intercommunication of valve body, when dismantling manometer 3, movable rod 4 return under spring 5's effect, form the sealing to pressure port 2, just so can dismantle change the maintenance to manometer 3 on line.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure reducing valve, includes the valve body, the valve body in be equipped with pressure regulating assembly, the valve body on be equipped with the pressure port, the pressure port in be connected with the manometer, the manometer have with pressure port threaded connection body of rod part, its characterized in that: still include movable rod, spring, nut, sealing ring, the inside wall of pressure hole on be equipped with annular spacing portion, the movable rod connect in spacing portion, the lower extreme of movable rod stretches into the inside of valve body, the lower extreme of movable rod is equipped with the sealing, the sealing ring cup joint the movable rod on, the sealing ring is connected with the sealing, the upper end threaded connection of movable rod has the nut, the spring cup joints the lower extreme and the spacing portion counterbalance of spring on the movable rod, the upper end and the nut counterbalance of spring, the upper end and the body of rod part counterbalance of movable rod.

2. A pressure reducing valve according to claim 1, wherein: the side wall of the movable rod is provided with a communicating groove, and the communicating groove is arranged along the length direction of the movable rod.

3. A pressure reducing valve according to claim 1, wherein: the position of the inner wall of the valve body surrounding the pressure hole forms a planar sealing surface, and the sealing ring and the sealing surface form sealing fit.

4. A pressure reducing valve according to claim 1, wherein: the valve body is a four-way valve body joint and is provided with four valve ports, wherein two valve ports are respectively a liquid inlet and a liquid outlet, and the other two valve ports are connected with pressure adjusting components.

5. The pressure reducing valve according to claim 4, wherein: the liquid inlet and the liquid outlet are respectively connected with a pipe joint.

6. A pressure reducing valve according to claim 1, wherein: the inner side wall of the upper end of the pressure hole is provided with an internal thread, and the outer side wall of the rod body part is provided with an external thread.