CN210218829U

CN210218829U - Pressure reducing valve with multiple joints capable of being controlled independently

Info

Publication number: CN210218829U
Application number: CN201920960516.9U
Authority: CN
Inventors: Lingchao Yang; 杨令朝; Bin Li; 李斌; Shiqiang Sun; 孙世强; Nanlin Lyu; 吕男林; Jiwu Qian; 钱继武; Xueming Xu; 许学明; Hao Chen; 陈浩
Original assignee: Shaanxi Longqing Gas Co Ltd
Current assignee: Shaanxi Longqing Gas Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-31
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to a relief pressure valve technical field specifically is a but polylinker independent control's relief pressure valve, including valve body and valve gap, a plurality of preceding cavitys have been seted up in the valve body left side, a plurality of back cavitys have been seted up on the right side, the pressure regulating hole has been seted up on back cavity top, the pressure regulating chamber has been seted up to pressure regulating hole top, the valve body left end is equipped with fluid inlet pipe joint, the valve body right-hand member is equipped with a plurality of fluid outlet pipe joints, be equipped with the case between preceding cavity and the back cavity, the case top is equipped with the regulator, the regulator includes the diaphragm, the diaphragm upper surface is equipped with the fixture block, the fixture block top. This pressure reducing valve that polylinker can be controlled alone, through multiunit cavity, case and the pressure regulating device that sets up, can be through the fluid outlet pressure of many pipelines of a relief pressure valve control, and each pipeline can be controlled alone, has solved the more inconvenient and higher problem of cost of installation of relief pressure valve among the complicated pipe-line system.

Description

Pressure reducing valve with multiple joints capable of being controlled independently

Technical Field

The utility model relates to a relief pressure valve technical field specifically is a but polylinker independent control's relief pressure valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure of fluid to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by means of the energy of a medium, most of the conventional pressure reducing valves are of an inlet-outlet type, one pressure reducing valve can only control one pipeline, more pressure reducing valves are needed in a complicated pipeline system, the installation is inconvenient, the cost is high, and therefore, the pressure reducing valve with multiple joints capable of being controlled independently is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but polylinker independent control's relief pressure valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a multi-joint independently-controlled pressure reducing valve comprises a valve body and a valve cover at the top of the valve body, wherein a plurality of front cavities are formed in the left side of the valve body, a plurality of rear cavities are formed in the right side of the valve body, pressure regulating holes are formed in the top end of the rear cavities, pressure regulating cavities are formed above the pressure regulating holes, a fluid inlet pipe joint is arranged at the left end of the valve body, a plurality of fluid outlet pipe joints are arranged at the right end of the valve body, exhaust holes are formed in the bottom of the valve body, sliding grooves are formed above the exhaust holes, a valve core is arranged between the front cavities and the rear cavities in the same axial direction and comprises an upper stop block, a connecting rod is arranged on the lower surface of the upper stop block, a lower stop block is arranged at the lower end of the connecting rod, a sliding rod is arranged on, the adjustable valve is characterized in that an adjusting spring is arranged above the clamping block, a pressing block is arranged above the adjusting spring, an adjusting bolt is arranged above the pressing block, a cavity is formed in the bottom end of the valve cover, and a plurality of adjusting threaded holes are formed in the upper surface of the valve cover.

Preferably, the number of the front cavities and the number of the rear cavities are two or more, the fluid inlet pipe joints penetrate through and are communicated with all the front cavities, and the fluid outlet pipe joints correspond to the rear cavities one to one.

Preferably, the upper stop block, the connecting rod, the lower stop block and the sliding rod are of an integrally formed structure, and the sliding rod is in sliding connection with the sliding groove.

Preferably, the upper stop block is fixedly connected with the diaphragm, the upper stop block is clamped between the front cavity and the rear cavity, and a sealing ring is arranged at the edge of the upper surface of the lower stop block.

Preferably, the fixture block is fixedly connected with the diaphragm, a sinking groove is formed in the upper surface of the fixture block, and the lower end of the adjusting spring is fixed in the sinking groove.

Preferably, a counter bore is formed in the upper surface of the pressing block, the tail end of the adjusting bolt is inserted into the counter bore, a convex column is arranged on the lower surface of the pressing block, the pressing block and the convex column are of an integrally formed structure, and the convex column is clamped on the inner side of the adjusting spring.

Preferably, the adjusting bolt upper end is equipped with the hand wheel, just the hand wheel with adjusting bolt is integrated into one piece structure, adjusting bolt with adjusting screw hole threaded connection, just the hand wheel is located the valve gap outside.

Preferably, the valve cover is locked and fixed with the valve body through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

this pressure reducing valve that polylinker can be controlled alone, through multiunit cavity, case and the regulator that sets up, can be through the fluid outlet pressure of many pipelines of a pressure reducing valve control, and each pipeline can be by a set of cavity, case and regulator individual control, solved among the complicated pipe-line system the more inconvenient and higher problem of cost of installation of pressure reducing valve.

Drawings

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

fig. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a sectional view taken along the line A-A in the plan view of the overall structure of the present invention;

FIG. 4 is a schematic structural view of the valve body of the present invention;

fig. 5 is a schematic structural view of the middle valve cover of the present invention;

fig. 6 is a schematic structural view of the pressure regulating device of the present invention;

fig. 7 is a schematic structural diagram of the middle valve element of the present invention.

In the figure: 1. a valve body; 10. a front cavity; 11. a rear cavity; 12. a fluid inlet coupling; 13. a fluid outlet coupling; 14. a chute; 15. an exhaust pipe; 16. a pressure regulating hole; 17. a pressure regulating cavity; 2. a valve cover; 20. a cavity; 21. adjusting the threaded hole; 3. a pressure regulating device; 30. a membrane; 31. a clamping block; 32. adjusting the spring; 33. briquetting; 330. a counter bore; 331. a convex column; 34. adjusting the bolt; 340. a hand wheel; 4. a valve core; 40. an upper stop block; 41. a connecting rod; 42. a lower stop block; 43. a slide bar.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-7, the present invention provides a technical solution:

a pressure reducing valve with multiple joints capable of being controlled independently comprises a valve body 1 and a valve cover 2 arranged on the top of the valve body 1, wherein the left side of the valve body 1 is provided with a plurality of front cavities 10, the right side of the valve body 1 is provided with a plurality of rear cavities 11, the top end of each rear cavity 11 is provided with a pressure regulating hole 16, a pressure regulating cavity 17 is arranged above each pressure regulating hole 16, the left end of the valve body 1 is provided with a fluid inlet pipe joint 12, the right end of the valve body 1 is provided with a plurality of fluid outlet pipe joints 13, the bottom of the valve body 1 is provided with an exhaust hole 15, a sliding groove 14 is arranged above each exhaust hole 15, a valve core 4 is arranged between each front cavity 10 and each rear cavity 11 in the same axial direction, each valve core 4 comprises an upper stop 40, the lower surface of each upper stop 40 is provided with a connecting rod 41, the lower end of each connecting rod 41 is provided, an adjusting spring 32 is arranged above the clamping block 31, a pressing block 33 is arranged above the adjusting spring 32, an adjusting bolt 34 is arranged above the pressing block 33, a cavity 20 is formed at the bottom end of the valve cover 2, and a plurality of adjusting threaded holes 21 are formed in the upper surface of the valve cover 2.

In this embodiment, the number of the front cavities 10 and the number of the rear cavities 11 are two or more, preferably three in this embodiment, the fluid inlet pipe joints 12 are communicated with all the front cavities 10, the same fluid inlet pipe conveys fluid, and the fluid outlet pipe joints 13 are in one-to-one correspondence with the rear cavities 11, so that the fluid outlet pressure of each fluid outlet pipe can be respectively controlled according to requirements.

In addition, go up dog 40, connecting rod 41, lower dog 42 and slide bar 43 are integrated into one piece structure, stable in structure, slide bar 43 and spout 14 sliding connection, go up dog 40 and diaphragm 30 fixed connection, it is between preceding cavity 10 and back cavity 11 to go up dog 40 joint, guarantee the stability of case 4 up-and-down motion, dog 42 upper surface edge is equipped with the sealing washer down, guarantee better sealed effect, the fluid flow between cavity 10 and the back cavity 11 before accurate control.

Furthermore, the fixture block 31 and the diaphragm 30 are integrally formed, a sinking groove is formed in the upper surface of the fixture block 31, the lower end of the adjusting spring 32 is fixed in the sinking groove, a counter bore 330 is formed in the upper surface of the pressing block 33, the tail end of the adjusting bolt 34 is inserted into the counter bore 330, a protruding column 331 is arranged on the lower surface of the pressing block 33, the pressing block 33 and the protruding column 331 are integrally formed, and the protruding column 331 is clamped inside the adjusting spring 32.

Specifically, the valve cover 2 is fixed on the valve body 1 through screw locking, the valve core 4 and the adjusting device 3 are protected, the hand wheel 340 is arranged at the upper end of the adjusting bolt 34, the hand wheel 340 and the adjusting bolt 34 are of an integrally formed structure, the adjusting bolt 34 is in threaded connection with the adjusting threaded hole 21, the hand wheel 340 is located outside the valve cover 2, and the elastic pressure of the adjusting spring 32 is adjusted up and down by rotating the hand wheel 340.

When the pressure reducing valve with the multi-joint capable of being controlled independently is used, a fluid inlet pipe is connected to a fluid inlet pipe joint 12, and fluid outlet pipes are respectively connected to a fluid outlet pipe joint 13; when the switch of the fluid outlet pipe is closed, the fluid flows into the rear cavity 11 from the front cavity 10, the fluid in the rear cavity 11 flows into the pressure regulating cavity 17 through the pressure regulating hole 16, the pressure intensity of the fluid in the pressure regulating cavity 17 gradually rises, the upward pressure of the fluid acting on the diaphragm 30 becomes large, when the upward pressure of the fluid acting on the diaphragm 30 is larger than the downward elastic pressure of the regulating spring 32, the diaphragm 30 drives the valve core 4 to move upwards, the lower stop block 42 of the valve core 4 cuts off the fluid flow between the front cavity 10 and the rear cavity 11, and the pressure regulating valve is closed at the moment; when the fluid outlet pipe switch is opened, the fluid flows out of the rear cavity 11, the fluid pressure in the rear cavity 11 is reduced, the upward pressure of the fluid acting on the diaphragm 30 is reduced, when the upward pressure of the fluid acting on the diaphragm 30 is smaller than the downward elastic pressure of the adjusting spring 32, the diaphragm 30 drives the valve core 4 to move downward, the compression amount of the spring is reduced, the downward elastic pressure of the adjusting spring 32 is gradually reduced, the fluid flows into the rear cavity 11 from the front cavity 10 and then flows out through the fluid outlet pipe, when the upward pressure of the fluid acting on the diaphragm 30 is the same as the downward elastic pressure of the adjusting spring 32, the valve core 4 stops moving, and the pressure reducing valve is in a stable working state; the worker can respectively rotate the handwheels 340 of the corresponding pipelines according to the fluid outlet pressures required by different fluid outlet pipes, and adjust the elastic pressure of the adjusting spring 32, so as to adjust the fluid outlet pressure of the outlet pipe.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A multi-joint individually controllable pressure reducing valve comprising a valve body (1) and a valve cover (2) on top of the valve body (1), characterized in that: the valve is characterized in that a plurality of front cavities (10) are arranged on the left side of the valve body (1), a plurality of rear cavities (11) are arranged on the right side of the valve body (1), pressure regulating holes (16) are formed in the top end of the rear cavities (11), pressure regulating cavities (17) are formed in the upper sides of the pressure regulating holes (16), fluid inlet pipe joints (12) are arranged at the left end of the valve body (1), a plurality of fluid outlet pipe joints (13) are arranged at the right end of the valve body (1), exhaust holes (15) are formed in the bottom of the valve body (1), sliding grooves (14) are formed in the upper sides of the exhaust holes (15), a valve core (4) is arranged between the front cavities (10) and the rear cavities (11) in the same axial direction, the valve core (4) comprises an upper stop block (40), a connecting rod (41) is arranged on the lower surface of the upper stop block, go up dog (40) and be equipped with pressure regulating device (3) directly over, pressure regulating device (3) are including diaphragm (30) of bottom, diaphragm (30) upper surface is equipped with fixture block (31), fixture block (31) top is equipped with regulating spring (32), regulating spring (32) top is equipped with briquetting (33), briquetting (33) top is equipped with adjusting bolt (34), cavity (20) have been seted up to valve gap (2) bottom, a plurality of regulation screw holes (21) have been seted up to valve gap (2) upper surface.

2. The multi-joint individually controllable pressure relief valve of claim 1, wherein: the number of the front cavities (10) and the number of the rear cavities (11) are two or more, the fluid inlet pipe joints (12) are communicated with all the front cavities (10) in a penetrating manner, and the fluid outlet pipe joints (13) are in one-to-one correspondence with the rear cavities (11).

3. The multi-joint individually controllable pressure relief valve of claim 1, wherein: the upper stop block (40), the connecting rod (41), the lower stop block (42) and the sliding rod (43) are of an integrally formed structure, and the sliding rod (43) is in sliding connection with the sliding groove (14).

4. The multi-joint individually controllable pressure relief valve of claim 1, wherein: go up dog (40) with diaphragm (30) fixed connection, go up dog (40) joint front cavity (10) with between rear cavity (11), lower dog (42) upper surface edge is equipped with the sealing washer.

5. The multi-joint individually controllable pressure relief valve of claim 1, wherein: the fixture block (31) is fixedly connected with the diaphragm (30), a sinking groove is formed in the upper surface of the fixture block (31), and the lower end of the adjusting spring (32) is fixed in the sinking groove.

6. The multi-joint individually controllable pressure relief valve of claim 1, wherein: the upper surface of the pressing block (33) is provided with a counter bore (330), the tail end of the adjusting bolt (34) is inserted into the counter bore (330), the lower surface of the pressing block (33) is provided with a convex column (331), the pressing block (33) and the convex column (331) are of an integrally formed structure, and the convex column (331) is clamped on the inner side of the adjusting spring (32).

7. The multi-joint individually controllable pressure relief valve of claim 1, wherein: adjusting bolt (34) upper end is equipped with hand wheel (340), just hand wheel (340) with adjusting bolt (34) are the integrated into one piece structure, adjusting bolt (34) with adjust screw hole (21) threaded connection, just hand wheel (340) are located valve gap (2) are outside.

8. The multi-joint individually controllable pressure relief valve of claim 1, wherein: the valve cover (2) is locked and fixed with the valve body (1) through screws.