CN213541448U

CN213541448U - Tension type pressure reducing valve

Info

Publication number: CN213541448U
Application number: CN202022679280.7U
Authority: CN
Inventors: 陈羿中
Original assignee: Zhejiang Dongye Valve Co ltd
Current assignee: Zhejiang Dongye Valve Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-25
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a tension type relief pressure valve, including the relief pressure valve casing with be fixed in the sealing washer I in the relief pressure valve casing, the one end that the relief pressure valve casing was kept away from to sealing washer I is fixed with position circle one, has seted up the forked tail ring channel on the position circle one, it is provided with the forked tail annuliform to slide in the forked tail ring channel, one side that the position circle one was kept away from to the forked tail annuliform is fixed with position circle two, the one end that position circle one was kept away from to position circle two is fixed with sealing washer two, when accomplishing sealed to the relief pressure valve, improve the utilization ratio of relief.

Description

Tension type pressure reducing valve

Technical Field

The utility model relates to the technical field of valves, in particular to pulling force formula relief pressure valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

In the long-term use process of the traditional tension type pressure reducing valve, one part of a sealing ring is worn to influence the sealing performance of the pressure reducing valve, and the traditional tension type pressure reducing valve needs to be replaced urgently, so that the utilization rate of the sealing ring is low, meanwhile, the maintenance cost is increased, and an improvement space exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tension formula relief pressure valve can improve the utilization ratio of relief pressure valve sealing washer when accomplishing sealed to the relief pressure valve, reduces cost of maintenance.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a tension formula relief pressure valve, includes the relief pressure valve casing and is fixed in the sealing washer one in the relief pressure valve casing, the one end that the relief pressure valve casing was kept away from to sealing washer one is fixed with position circle one, the forked tail ring channel has been seted up on the position circle one, it is provided with the forked tail annuliform to slide in the forked tail ring channel, one side that the position circle one was kept away from to the forked tail annuliform is fixed with position circle two, the one end that position circle one was kept away from to position circle two is fixed with.

Adopt above-mentioned technical scheme, when relief pressure valve housing uses for a long time, when wearing and tearing appear in sealing washer one and sealing washer two, the staff rotates sealing washer two, sealing washer two rotates and can drive spacer ring two and rotate, spacer ring two rotates and can drive the forked tail annulars at forked tail ring channel internal rotation, thereby stagger the wearing and tearing position of sealing washer two department and the wearing and tearing position of sealing washer one through rotating, make the wearing and tearing department of sealing washer two filled by sealing washer one, the wearing and tearing department of sealing washer one is filled by sealing washer two, when need not to change new sealed pad, utilize the sealing washer more thoroughly, improve the utilization ratio of sealing washer, the cost is reduced, and easy operation.

Preferably, a valve rod is arranged in the pressure reducing valve shell in a sliding mode, the valve rod penetrates through the upper end face of the pressure reducing valve shell, a pull ring is sleeved at one end of the valve rod, and a spring is arranged in the pressure reducing valve shell.

Adopt above-mentioned technical scheme, relief pressure valve housing is by fixed back, when needs decompress the fluid, staff pulling pull ring, and the pull ring pulling can drive valve pole to the external removal of relief pressure valve housing, and valve pole can drive the spring tensile to the valve body moves outward to reduce pressure through the throttle area who enlarges through the valve body.

Preferably, a threaded ring is provided on a side wall of the relief valve housing.

Adopt above-mentioned technical scheme, the staff is when using the decompression valve casing, twists the decompression valve casing, connects and fixes the decompression valve casing through the screw thread on the screw thread circle.

Preferably, the inner diameters of the first positioning ring and the second positioning ring are smaller than those of the first sealing ring and the second sealing ring, and the first positioning ring and the second positioning ring are in running fit.

By adopting the technical scheme, the first sealing ring and the second sealing ring are connected through the first positioning ring and the second positioning ring, and the first sealing ring and the second sealing ring are supported to a certain extent.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic diagram of an embodiment showing a spring position;

FIG. 3 is a schematic diagram illustrating a positional relationship between a first seal ring and a second seal ring according to an embodiment;

FIG. 4 is a schematic diagram showing the positional relationship among the first positioning ring, the second positioning ring and the dovetail circular ring.

Reference numerals: 1. a relief valve housing; 2. a first sealing ring; 3. positioning a first ring; 4. a dovetail annular groove; 5. a dovetail circular ring; 6. a second positioning ring; 7. a second sealing ring; 8. a valve rod; 9. a pull ring; 10. a spring; 11. and (4) a thread ring.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

Referring to fig. 1 to 4, a tension type pressure reducing valve includes a pressure reducing valve housing 1 and a threaded ring 11 provided on a sidewall of the pressure reducing valve housing 1.

When the pressure reducing valve housing 1 is used, the worker screws the pressure reducing valve housing 1, and the pressure reducing valve housing 1 is connected and fixed by the screw thread of the screw ring 11.

A valve rod 8 is arranged in the pressure reducing valve shell 1 in a sliding mode, the valve rod 8 penetrates through the upper end face of the pressure reducing valve shell 1, a pull ring 9 is sleeved at one end of the valve rod 8, and a spring 10 is arranged in the pressure reducing valve shell 1.

When the pressure reducing valve shell 1 needs to reduce pressure of fluid after being fixed, a worker pulls the pull ring 9, the pull ring 9 pulls the valve rod 8 to move towards the outside of the pressure reducing valve shell 1, and the valve rod 8 moves towards the outside of the valve body to drive the spring 10 to stretch, so that the pressure is reduced by enlarging the throttling area of the valve body.

Be fixed in sealing washer one 2 in relief pressure valve casing 1, the one end that relief pressure valve casing 1 was kept away from to sealing washer one 2 is fixed with position circle one 3, rotates on the position circle one 3 and is provided with position circle two 6, and the one end that position circle one 3 was kept away from to position circle two 6 is fixed with sealing washer two 7, and the internal diameter of position circle one 3 and position circle two 6 all is less than sealing washer one 2 and sealing washer two 7.

The first sealing ring 2 and the second sealing ring 7 are connected through the first positioning ring 3 and the second positioning ring 6, and the first sealing ring 2 and the second sealing ring 7 are supported to a certain extent.

A dovetail annular groove 4 is formed in the first locating ring 3, a dovetail circular ring 5 is arranged in the dovetail annular groove 4 in a sliding mode, and a second locating ring 6 is fixed to one side, far away from the first locating ring 3, of the dovetail circular ring 5.

When decompression valve case 1 uses for a long time, when wearing and tearing appear in sealing washer one 2 and sealing washer two 7, the staff rotates sealing washer two 7, sealing washer two 7 rotates and can drive spacer ring two 6 and rotate, spacer ring two 6 rotates and can drive forked tail toroidal ring 5 at 4 rotations of forked tail ring channel, thereby stagger through rotating the wearing and tearing position with the wearing and tearing position of sealing washer two 7 department and sealing washer one 2 department, make the wearing and tearing department of sealing washer two 7 filled by sealing washer one 2, the wearing and tearing department of sealing washer one 2 is filled by sealing washer two 7.

The first sealing ring 2 and the second sealing ring 7 are more thoroughly utilized while the first sealing ring 2 and the second sealing ring 7 do not need to be replaced, the utilization rate of the first sealing ring 2 and the second sealing ring 7 is improved, the cost is reduced, and the operation is simple.

Claims

1. The utility model provides a tension formula relief pressure valve, includes relief pressure valve casing (1), its characterized in that, still including being fixed in sealing washer (2) in relief pressure valve casing (1), the one end that relief pressure valve casing (1) were kept away from in sealing washer (2) is fixed with position circle (3), forked tail ring channel (4) have been seted up on position circle (3), it is provided with forked tail ring channel (5) to slide in forked tail ring channel (4), one side that position circle (3) were kept away from in forked tail ring channel (5) is fixed with position circle two (6), the one end that position circle (3) were kept away from in position circle two (6) is fixed with sealing washer two (7).

2. A tension-type pressure reducing valve according to claim 1, wherein a valve rod (8) is slidably disposed in the pressure reducing valve housing (1), the valve rod (8) penetrates through the upper end face of the pressure reducing valve housing (1), a pull ring (9) is sleeved on one end of the valve rod (8), and a spring (10) is disposed in the pressure reducing valve housing (1).

3. A tension-type pressure reducing valve according to claim 1, wherein the side wall of the pressure reducing valve housing (1) is provided with a threaded ring (11).

4. A tension-type pressure reducing valve according to claim 1, wherein the inner diameters of the first positioning ring (3) and the second positioning ring (6) are smaller than those of the first sealing ring (2) and the second sealing ring (7), and the first positioning ring (3) and the second positioning ring (6) are in rotating fit.