CN212928889U

CN212928889U - Spring opens formula relief valve entirely with removable uide bushing

Info

Publication number: CN212928889U
Application number: CN202021912557.XU
Authority: CN
Inventors: 张秀林
Original assignee: Henghua Valve Co ltd
Current assignee: Henghua Valve Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-09
Anticipated expiration: 2030-09-04

Abstract

The utility model relates to a relief valve technical field specifically is a spring opens formula relief valve entirely with removable uide bushing, including the valve body, open at the valve body top has the regulation hole, and the valve gap has been installed at the valve body top, is equipped with the uide bushing between valve body and valve gap, and open at the valve body top has the spacing groove, and uide bushing lateral wall bottom edge is equipped with annular locating piece, and annular locating piece cover is in the spacing groove, and sliding connection has the valve rod in the uide bushing, and the valve rod bottom even has the case, and the valve rod lateral wall is equipped with the clamp plate, and the valve. This spring opens formula relief valve entirely with removable uide bushing, limiting displacement through spacing groove and annular locating piece fixes the uide bushing location, and the uide bushing fastening is fixed in the spacing groove through the connection of valve gap and valve body simultaneously, and convenient to detach warp when damaging the influence valve rod removal at the uide bushing, can directly carry out the dismouting change with it, need not whole change relief valve, improves resource utilization, reduce cost.

Description

Spring opens formula relief valve entirely with removable uide bushing

Technical Field

The utility model relates to a relief valve technical field specifically is a spring opens formula relief valve entirely with removable uide bushing.

Background

The safety valve is a spring full-open safety valve with a detachable guide sleeve, and the spring full-open safety valve is mainly used for boilers, pressure containers and pipelines and has an important protection effect on personal safety and equipment operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring opens formula relief valve entirely with removable uide bushing 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 spring full-open type safety valve with a detachable guide sleeve comprises a valve body, wherein a liquid inlet pipe is arranged at the bottom of the valve body, a pressure relief pipe communicated with the liquid inlet pipe is arranged on the outer side wall of the valve body, an adjusting hole is arranged in the middle of the top of the valve body, the bottom of the adjusting hole extends to the lower portion of the bottom of the inner side wall of the pressure relief pipe, a valve cover is mounted at the top of the valve body, the guide sleeve is arranged between the valve body and the valve cover, a limiting groove is formed in the top of the valve body, an annular positioning block is arranged at the edge of the bottom of the outer side wall of the guide sleeve, the outer diameter of the annular positioning block is matched with the inner diameter of the limiting groove, the annular positioning block is sleeved in the limiting groove and tightly pressed in the limiting groove through the bottom of the side wall of the valve cover, a valve rod which is connected with the guide sleeve in, the valve core is positioned in the adjusting hole and is in sliding connection with the adjusting hole, a pressing plate in an annular structure is arranged on the outer side wall of the valve rod above the guide sleeve, a spring is sleeved on the outer side wall of the valve rod above the pressing plate, the bottom of the spring is attached to the top of the pressing plate, and the top of the spring is attached to the top of the inner wall of the guide sleeve.

Preferably, the bottom edge of the outer side wall of the liquid inlet pipe is provided with a first connecting flange which is of an integrally formed structure.

Preferably, the tail end of the outer side wall of the pressure relief pipe is provided with a second connecting flange which is of an integrally formed structure.

Preferably, valve body lateral wall top is equipped with rather than the first mounting flange that is the integrated into one piece structure, valve gap lateral wall bottom edge is equipped with rather than the second mounting flange that is the integrated into one piece structure, the second mounting flange passes through bolt and nut locking to be fixed on first mounting flange.

Preferably, the annular positioning block and the guide sleeve are of an integrally formed structure.

Preferably, a through guide hole is formed in the middle of the top of the guide sleeve, the outer diameter of the valve rod is matched with the inner diameter of the guide hole, and the valve rod is inserted into the guide hole and is in sliding connection with the guide hole.

Preferably, the pressure plate and the valve rod are in an integrally formed structure.

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

this spring opens formula relief valve entirely with removable uide bushing, the spacing groove has been seted up at the valve body top, uide bushing lateral wall bottom is equipped with annular locating piece, limiting displacement through spacing groove and annular locating piece fixes the uide bushing, simultaneously through the connection of valve gap and valve body with the uide bushing fastening fixed in the spacing groove, convenient to detach, when the uide bushing warp to damage and influences the valve rod and remove, can directly carry out the dismouting change with it, need not the overall change relief valve, improve resource utilization, and the cost is reduced.

Drawings

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

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

fig. 3 is an exploded 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 guide sleeve of the present invention;

fig. 6 is a schematic structural diagram of the middle valve rod of the present invention.

In the figure:

1. a valve body; 10. a liquid inlet pipe; 100. a first connecting flange; 11. a pressure relief pipe; 110. a second connecting flange; 12. an adjustment hole; 13. a limiting groove; 14. a first mounting flange;

2. a valve cover; 20. a second mounting flange;

3. a guide sleeve; 30. an annular positioning block; 31. a guide hole;

4. a valve stem; 40. pressing a plate;

5. a valve core;

6. a spring.

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. 1-6, the present invention provides a technical solution:

a spring full-open type safety valve with a detachable guide sleeve comprises a valve body 1, a liquid inlet pipe 10 is arranged at the bottom of the valve body 1, a pressure relief pipe 11 communicated with the liquid inlet pipe 10 is arranged on the outer side wall of the valve body 1, an adjusting hole 12 is arranged at the middle position of the top of the valve body 1, the bottom of the adjusting hole 12 extends to the lower portion of the bottom of the inner side wall of the pressure relief pipe 11, a valve cover 2 is arranged at the top of the valve body 1, a guide sleeve 3 is arranged between the valve body 1 and the valve cover 2, a limit groove 13 is arranged at the top of the valve body 1, an annular positioning block 30 is arranged at the bottom edge of the outer side wall of the guide sleeve 3, the outer diameter of the annular positioning block 30 is matched with the inner diameter of the limit groove 13, the annular positioning block 30 is sleeved in the limit groove 13 and is tightly pressed in the limit groove 13 through the bottom of, the outer diameter of the valve rod 4 is matched with the inner diameter of the guide hole 31, the valve rod 4 is inserted in the guide hole 31 and is in sliding connection with the guide hole, the bottom of the valve rod 4 is coaxially connected with the valve core 5, the outer diameter of the valve core 5 is matched with the inner diameter of the adjusting hole 12, the valve core 5 is positioned in the adjusting hole 12 and is in sliding connection with the adjusting hole, the outer side wall of the valve rod 4 is positioned above the guide sleeve 3 and is provided with a pressing plate 40 in an annular structure, the outer side wall of the valve rod 4 is positioned above the pressing plate 40 and is sleeved with a spring 6, the bottom of the spring 6 is attached to the top of the pressing plate 40, the top of the spring 6 is attached to the top of the inner wall of the guide sleeve 3, when the valve rod 4 and the valve core 5 are driven to move downwards by the elastic force of the spring 6, the joint of the liquid inlet pipe 10 and the pressure outlet pipe 11 is blocked, overcome the elasticity of spring 6 and push case 5 and valve rod 4 upwards, open the valve for feed liquor pipe 10 and pressure release pipe 11 intercommunication, the medium discharges from pressure release pipe 11 and carries out the pressure release, guarantees the pressure stability of pipeline or equipment, and then plays important guard action to personal safety and equipment operation.

In this embodiment, 1 lateral wall top of valve body is equipped with the first mounting flange 14 rather than being the integrated into one piece structure, 2 lateral wall bottom edges of valve gap are equipped with the second mounting flange 20 rather than being the integrated into one piece structure, second mounting flange 20 passes through bolt and nut locking to be fixed on first mounting flange 14, valve gap 2 passes through bolt and nut locking to be fixed on valve body 1, the installation and disassembly of being convenient for, uide bushing 3 is through the cooperation location of annular locating piece 30 with spacing groove 13 simultaneously, and compress tightly it through valve gap 2 and fix in spacing groove 13, when 3 deformation damage influences valve rod 4 removal of uide bushing, can directly dismantle valve gap 2, take off uide bushing 3 and change, need not the whole relief valve that changes, improve resource utilization, and the cost is reduced.

Besides, the bottom edge of the outer side wall of the liquid inlet pipe 10 is provided with a first connecting flange 100 which is of an integrally formed structure, the tail end of the outer side wall of the pressure relief pipe 11 is provided with a second connecting flange 110 which is of an integrally formed structure, and the liquid inlet pipe 10 and the pressure relief pipe 11 are conveniently connected in a pipeline or on equipment through the first connecting flange 100 and the second connecting flange 110.

Specifically, annular locating piece 30 is the integrated into one piece structure with uide bushing 3, and clamp plate 40 is the integrated into one piece structure with valve rod 4, and the integrated into one piece structure is convenient for produce, and the product size precision who just produces is high, stable in structure.

When the spring full-open type safety valve with the detachable guide sleeve is used, a worker firstly checks the integrity of the safety valve and whether the connection of each part is firm; then the liquid inlet pipe 10 and the pressure relief pipe 11 are connected in a pipeline or on equipment through the first connecting flange 100 and the second connecting flange 110; in the using process, the pressing plate 40 is extruded by the elastic force of the spring 6 to drive the valve rod 4 and the valve core 5 to move downwards, the joint of the liquid inlet pipe 10 and the pressure relief pipe 11 is blocked by the valve core 5, when the pressure of a medium in the liquid inlet pipe 10 acting on the bottom of the valve core 5 is greater than the elastic force of the spring 6, the valve core 5 and the valve rod 4 are extruded upwards by overcoming the elastic force of the spring 6, the valve is opened, the liquid inlet pipe 10 is communicated with the pressure relief pipe 11, the medium is discharged from the pressure relief pipe 11 to be relieved, after the pressure relief is finished, when the elastic force of the spring 6 is greater than the pressure of the medium acting on the bottom of the valve core 5, the spring 6 extrudes the pressing plate 40 again to drive the valve rod 4 and the valve core 5 to; after the guide sleeve 3 is deformed and damaged, the main valve is closed, the bolt and the nut used for locking the valve cover 2 are disassembled, the valve cover 2 and the guide sleeve 3 are taken down, the new guide sleeve 3 is installed in the limiting groove 13, the valve cover 2 is locked by the screw and the nut to tightly press and fix the limiting groove 13, and the main valve is opened again and is continuously used.

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. The utility model provides a spring opens formula relief valve entirely with removable uide bushing, includes valve body (1), its characterized in that: the liquid inlet pipe (10) is arranged at the bottom of the valve body (1), the pressure relief pipe (11) communicated with the liquid inlet pipe (10) is arranged on the outer side wall of the valve body (1), the adjusting hole (12) is arranged at the middle position of the top of the valve body (1), the bottom of the adjusting hole (12) extends to the lower part of the bottom of the inner side wall of the pressure relief pipe (11), the valve cover (2) is installed at the top of the valve body (1), the guide sleeve (3) is arranged between the valve body (1) and the valve cover (2), the top of the valve body (1) is provided with the limiting groove (13), the edge of the bottom of the outer side wall of the guide sleeve (3) is provided with the annular positioning block (30), the outer diameter of the annular positioning block (30) is matched with the inner diameter of the limiting groove (13), the annular positioning block (30) is sleeved in the limiting groove (13), be equipped with in uide bushing (3) along vertical direction and rather than sliding connection's valve rod (4), valve rod (4) bottom coaxial coupling has case (5), the external diameter size of case (5) and the internal diameter size looks adaptation of regulation hole (12), case (5) are arranged in regulation hole (12) and rather than sliding connection, valve rod (4) lateral wall is arranged in uide bushing (3) top and is equipped with clamp plate (40) that are the loop configuration, valve rod (4) lateral wall is located clamp plate (40) top cover and has spring (6), spring (6) bottom and clamp plate (40) top are laminated mutually, spring (6) top and uide bushing (3) inner wall top are laminated mutually.

2. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: the bottom edge of the outer side wall of the liquid inlet pipe (10) is provided with a first connecting flange (100) which is of an integrally formed structure.

3. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: and the tail end of the outer side wall of the pressure relief pipe (11) is provided with a second connecting flange (110) which is of an integrally formed structure.

4. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: valve body (1) lateral wall top is equipped with rather than first mounting flange (14) that is the integrated into one piece structure, valve gap (2) lateral wall bottom edge is equipped with rather than second mounting flange (20) that are the integrated into one piece structure, second mounting flange (20) are fixed on first mounting flange (14) through bolt and nut locking.

5. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: the annular positioning block (30) and the guide sleeve (3) are of an integrally formed structure.

6. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: the middle position of the top of the guide sleeve (3) is provided with a through guide hole (31), the outer diameter of the valve rod (4) is matched with the inner diameter of the guide hole (31), and the valve rod (4) is inserted into the guide hole (31) and is in sliding connection with the guide hole.

7. The spring full open safety valve with a removable guide sleeve of claim 1, wherein: the pressure plate (40) and the valve rod (4) are of an integrated structure.