CN213145370U

CN213145370U - Fast switching pressure reducing valve

Info

Publication number: CN213145370U
Application number: CN202021939285.2U
Authority: CN
Inventors: 李连亮; 施金坡
Original assignee: Pulian Power Fluid Control Shanghai Co Ltd
Current assignee: Pulian Power Fluid Control Shanghai Co Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-05-07
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a fast switch-over pressure relief valve, which comprises a valve body, a valve seat, the valve rod, the sealing washer clamp plate, the sealing washer, the valve disc, the diaphragm presses the cover, the diaphragm, a spring, the valve gap, discharge valve, first ball valve, the pilot valve, locking structure and second ball valve, be equipped with the disk seat on the valve body, be equipped with the valve rod in the disk seat, be equipped with the sealing washer clamp plate on the disk seat, be equipped with the sealing washer on the sealing washer clamp plate, be equipped with the valve disc on the sealing washer clamp plate, be equipped with the diaphragm and press the cover on the valve disc, be equipped with the. Adopt above-mentioned technical scheme to make a safe and reliable's fast switch-over pressure relief valve. The high-low pressure can be switched by manually switching the ball valve, the phenomenon of pipe explosion and leakage caused by insufficient use in the peak and the low peak is avoided, and the safety is improved. Intelligence, convenience, succinct, safety need not the wiring power supply. The product greatly reduces the labor cost, and has stable finished product and long service life.

Description

Fast switching pressure reducing valve

Technical Field

The utility model relates to a relief pressure valve field, in particular to fast switch-over pressure relief pressure valve.

Background

The existing pressure reducing valve is mainly adjusted by a manual mode, after pressure is adjusted, water supply pressure is kept unchanged no matter a water consumption peak or a low peak, water supply shortage is easily caused by the peak, pipe bursting leakage is caused by the low peak, and water resources are greatly wasted. Each adjustment requires turning the valve stem back and forth to achieve high and low pressure switching.

There is a need for a fast switching pressure relief valve that is safe and reliable.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a safe and reliable's fast switch-over pressure relief valve.

The utility model provides a fast switch-over pressure relief valve, including valve body, disk seat, valve rod, sealing washer clamp plate, sealing washer, valve disc, diaphragm pressure sleeve, diaphragm, spring, valve gap, discharge valve, first ball valve, pilot valve, locking structure and second ball valve, be equipped with the disk seat on the valve body, be equipped with the valve rod in the disk seat, be equipped with the sealing washer clamp plate on the disk seat, be equipped with the sealing washer on the sealing washer clamp plate, be equipped with the valve disc on the sealing washer clamp plate, be equipped with the diaphragm pressure sleeve on the valve disc, be equipped with the diaphragm between valve disc and the diaphragm pressure sleeve, be equipped with the spring on the valve rod, be equipped with the valve;

the valve body is connected with a first ball valve, the first ball valve is connected with a pilot valve, a locking structure is arranged on the pilot valve, the pilot valve is connected with a second ball valve, and the second ball valve is connected with the valve body.

In the above scheme, the valve body is connected with the needle valve.

In the scheme, an O-shaped ring is arranged between the sealing ring pressing plate and the valve rod.

In the above scheme, a valve rod locking nut is arranged on the valve rod and is arranged below the sealing ring pressing plate.

In the scheme, the valve cover and the valve body are fixed through the stud bolts and the six-side nuts.

The utility model has the advantages and the beneficial effects that: the utility model provides a safe and reliable's fast switch-over pressure relief valve. The high-low pressure can be switched by manually switching the ball valve, the phenomenon of pipe explosion and leakage caused by insufficient use in the peak and the low peak is avoided, and the safety is improved. Intelligence, convenience, succinct, safety need not the wiring power supply. The product greatly reduces the labor cost, and has stable finished product and long service life.

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 diagram of the present invention.

In the figure:

1. valve body 2, disk seat 3, valve rod 4, sealing washer clamp plate 5, sealing washer

6. Valve disc 7, diaphragm pressing sleeve 8, diaphragm 9, spring 10 and valve cover

11. Exhaust valve 12, first ball valve 13, pilot valve 14, locking structure

15. A second ball valve 16, a needle valve 17, an O-shaped ring 18 and a valve rod locking nut

19. Stud 20, six nut

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, the utility model relates to a fast switch-over pressure reducing valve, including valve body 1, valve seat 2, valve rod 3, sealing washer clamp plate 4, sealing washer 5, valve disc 6, diaphragm pressure sleeve 7, diaphragm 8, spring 9, valve gap 10, discharge valve 11, first ball valve 12, pilot valve 13, locking structure 14 and second ball valve 15, be equipped with valve seat 2 on the valve body 1, be equipped with valve rod 3 in the valve seat 2, be equipped with sealing washer clamp plate 4 on the valve seat 2, be equipped with sealing washer 5 on the sealing washer clamp plate 4, be equipped with valve disc 6 on the sealing washer clamp plate 4, be equipped with diaphragm pressure sleeve 7 on the valve disc 6, be equipped with diaphragm 8 between valve disc 6 and the diaphragm pressure sleeve 7, be equipped with spring 9 on the valve rod 3, be equipped with;

the valve body 1 is connected with the first ball valve 12, the first ball valve 12 is connected with the pilot valve 13, the pilot valve 13 is provided with a locking structure 14, the pilot valve 13 is connected with the second ball valve 15, and the second ball valve 15 is connected with the valve body 1.

The valve body 1 is connected to a needle valve 16. An O-shaped ring 17 is arranged between the sealing ring pressing plate 4 and the valve rod 3. The valve rod 3 is provided with a valve rod locking nut 18, and the valve rod locking nut 18 is arranged below the sealing ring pressing plate 4. The bonnet 10 is fixed to the valve body 1 by a stud 19 and a hexahedral nut 20.

The product is installed on a pipeline, an upstream valve is opened, water flow flows into the valve upper cavity through the guide pipe and then reaches the pilot valve 14, the locking structure 13 is opened, and the pilot valve 14 controls the main valve to be opened and reaches the pressure set by the pilot valve 14. When pressure needs to be reduced, the upstream ball valve at the bottom of the pilot valve piston is opened, and the water flow pressure pushes the pilot valve piston upwards to reduce the original set pressure of the pilot valve. And the upstream ball valve at the bottom of the pilot valve piston is closed, so that the normal pressure can be recovered.

The above description is only a 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. A fast switching pressure reducing valve is characterized by comprising a valve body, a valve seat, a valve rod, a sealing ring pressing plate, a sealing ring, a valve disc, a diaphragm pressing sleeve, a diaphragm, a spring, a valve cover, an exhaust valve, a first ball valve, a pilot valve, a locking structure and a second ball valve, wherein the valve seat is arranged on the valve body;

2. The fast switching pressure relief valve according to claim 1, wherein said valve body is connected to a needle valve.

3. The fast switching pressure relief valve according to claim 1, wherein an O-ring is disposed between said gasket pressure plate and said valve stem.

4. The fast switching pressure relief valve according to claim 1, wherein said stem has a stem lock nut disposed thereon, said stem lock nut being disposed below said gasket pressure plate.

5. The fast switching pressure relief valve according to claim 1, wherein the valve cover is fixed to the valve body by a stud bolt and a hexahedral nut.