Pressure balance valve

Abstract

The utility model relates to a pressure balance valve. The steam valve has the advantages of being easy to disassemble and maintain and comprises a valve body, a first cavity and a second cavity are formed in the valve body, a valve rubber base is arranged between the first cavity and the second cavity, a steam valve is fixed to the upper portion of the valve rubber base, two symmetrical air holes are formed in the middle of the steam valve, and the two symmetrical air holes are communicated with the valve rubber base. An air valve is inserted into the center of the steam valve, the upper portion of the air valve is in threaded connection with a limiting seat, an air valve spring is fixed to the lower portion of the limiting seat and arranged on the air valve in a sleeving mode, the lower portion of the air valve spring is supported on the upper portion of the steam valve, a steam valve spring is arranged in the first cavity, and the steam valve spring is arranged in the second cavity. One end of the steam valve spring is fixed to the upper portion of the steam valve, the upper portion of the steam valve spring abuts against the lower portion of the spring upper seat, an elastic check ring is fixed to the upper portion of the spring upper seat, and the elastic check ring is connected to the upper opening of the first cavity in a clamped mode.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure balance valve technical field, concretely relates to a pressure balance valve. BACKGROUND

[0002] Pressure balance valve is a kind of energy-saving product that keeps the pressure difference of medium flowing through the controlled system unchanged by using the pressure change of medium itself, is the valve for specific function, can reach the balance of flow by the method of liquid-gas shunting when using, and then adjust the balance of pressure on both sides.

[0003] The overall structure of the existing pressure balance valve is complex, when the internal components are damaged, the components are not easy to replace, and it is also not convenient to maintain, the overall replacement cost is too high, therefore, design a kind of pressure balance valve to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art and providing a pressure balance valve with easy disassembly and maintenance.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of pressure balance valve, including valve body, first cavity and second cavity are set in the valve body, first cavity and second cavity between are provided with valve rubber seat, the upper portion of valve rubber seat is fixed with steam valve, the middle portion of steam valve is provided with two symmetrical air holes, the center of steam valve is inserted with air valve, the upper portion of air valve is connected with limit seat by screw thread, the lower portion of limit seat is fixed with air valve spring, air valve spring is set on air valve, the lower portion of air valve spring is supported on the upper portion of steam valve, steam valve spring is provided in the first cavity, one end of steam valve spring is fixed to the upper portion of steam valve, the upper portion of steam valve spring is pressed to the lower portion of spring upper seat, the upper portion of spring upper seat is fixed with elastic baffle ring, elastic baffle ring is clamped in the upper opening of first cavity.

[0007] Further, the air valve is inverted T-shaped, the lower portion of the air valve is fixed with a top ring, and the top ring is attached to the valve rubber seat.

[0008] Further, the lower portion of the first cavity is provided with a convex ring, the convex ring is fixed to the inner wall of the valve body, and the lower portion of the valve rubber seat is attached to the convex ring.

[0009] Further, the middle portion of the spring upper seat is provided with a first filter screen.

[0010] Further, the second cavity is clamped with a rubber ring, and the upper portion of the rubber ring is placed with a second filter screen.

[0011] Further, the upper part of the steam valve is fixed with a top ring, the air valve spring is located in the inner ring of the top ring, and the steam valve spring is located in the outer ring of the top ring.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1、The utility model discloses simple whole structure is easy to dismantle, and convenient for replacing internal parts and maintenance.

[0014] In summary, the utility model has the advantages of simple structure and convenient disassembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view cross section schematic diagram of the utility model three-dimensional structure.

[0016] In the drawing, 1, valve body;2, first cavity;3, second cavity;4, valve rubber seat;5, steam valve;6, air hole;7, air valve;8, limit seat;9, air valve spring;10, steam valve spring;11, spring upper seat;12, elastic baffle ring;13, top ring;14, convex ring;15, first filter screen;16, rubber ring;17, second filter screen;18, top ring. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of protection of the utility model.

[0018] As Figure 1 Shown, a pressure balance valve, including valve body 1, begeted with first cavity 2 and second cavity 3 in valve body 1, be provided with valve rubber seat 4 between first cavity 2 and second cavity 3, the upper part of valve rubber seat 4 is fixed with steam valve 5, the middle part of steam valve 5 is begeted with two symmetrical air hole 6, steam valve 5 is inserted with air valve 7 in the center, the upper part of air valve 7 is threadedly connected with limit seat 8, the lower part of limit seat 8 is fixed with air valve spring 9, air valve spring 9 is set on air valve 7, the lower part of air valve spring 9 is supported on the upper part of steam valve 5, be provided with steam valve spring 10 in first cavity 2, one end of steam valve spring 10 is fixed to the upper part of steam valve 5, the upper part of steam valve spring 10 is pressed to the lower part of spring upper seat 11, the upper part of spring upper seat 11 is fixed with elastic baffle ring 12, elastic baffle ring 12 is clamped in the upper opening of first cavity 2;

[0019] By adjusting the height of the limit seat, the limiting value of the pressure balance valve can be adjusted.

[0020] The upper part of the first cavity 2 is communicated with the outside, and the second cavity 3 is communicated with the inside of the device;

[0021] When the pressure inside the device is greater than the outside, and exceeds the limit value of the pressure balance valve, the gas inside the device pushes the valve rubber seat 4 and the steam valve 5 upwards, the steam valve 5 pushes the steam valve spring 10 to move upwards, and the valve rubber seat 4 is separated from the convex ring 14, at this time, the inside of the device is communicated with the outside air;

[0022] When the pressure inside the device is less than the outside, and exceeds the limit value of the pressure balance valve, the outside air pushes the air valve 7, so that the air valve 7 drives the limiting seat 8 to descend, the small yellow upper seat extrudes the air valve spring 9, and the top ring 13 is separated from the valve rubber seat, at this time, the inside of the device is communicated with the outside through the second cavity 3, the air hole 6 and the first cavity 2;

[0023] The steam valve 5 is provided with a through hole in the upper part, so that the gas below the steam valve 5 and the gas above the steam valve 5 can flow, and the first cavity 2 is not blocked;

[0024] When the valve rubber seat 4 is attached to the convex ring 14 and the air valve 7 is attached to the top ring 13, the first cavity 2 is separated from the second cavity 3, when the valve rubber seat 4 and the convex ring 14 and the air valve 7 and the top ring 13 are any combination of disengagement state, the first cavity 2 and the second cavity 3 are communicated;

[0025] In this embodiment, the air valve 7 is inverted T-shaped, the lower part of the air valve 7 is fixed with the top ring 13, and the top ring 13 is attached to the valve rubber seat 4.

[0026] In this embodiment, the lower part of the first cavity 2 is provided with the convex ring 14, the convex ring 14 is fixed to the inner wall of the valve body 1, and the lower part of the valve rubber seat 4 is attached to the convex ring 14.

[0027] Preferably, the middle part of the spring upper seat 11 is provided with the first filter screen 15.

[0028] In this embodiment, the second cavity 3 is clamped with the rubber ring 16, the upper part of the rubber ring 16 is placed with the second filter screen 17, and the cross section of the second filter screen 17 is greater than the cross section of the inner hole of the rubber ring 16.

[0029] In this embodiment, the upper part of the steam valve 5 is fixed with the top ring 18, the air valve spring 9 is located in the inner ring of the top ring 18, and the steam valve spring 10 is located in the outer ring of the top ring 18.

[0030] By removing the elastic check ring 12, the spring upper seat 11 can be taken out, and then the steam valve 5 can be taken out, by rotating and unscrewing the limiting seat 8, the air valve 7 can be removed downward, so that when the parts of the pressure balance valve are damaged, it is convenient to disassemble, replace or repair, and cost is saved.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pressure balanced valve characterized by: The utility model provides a steam valve, including valve body, first cavity and second cavity are seted up in valve body, the valve rubber seat is arranged between first cavity and second cavity, the upper portion of valve rubber seat is fixed with steam valve, the middle part of steam valve is equipped with two symmetrical air holes, the center of steam valve is inserted with air valve, the upper portion of air valve is connected with the limiting seat of screw thread, the lower portion of limiting seat is fixed with air valve spring, air valve spring is sleeved on air valve, the lower portion of air valve spring supports the upper portion of steam valve, steam valve spring is seted up in first cavity, one end of steam valve spring is fixed to the upper portion of steam valve, the upper portion of steam valve spring is pressed to the lower portion of spring upper seat, the upper portion of spring upper seat is fixed with elastic baffle ring, and elastic baffle ring is clamped to the upper opening of first cavity.

2. A pressure balanced valve according to claim 1, characterized in that: The air valve is inverted T-shaped, and the lower portion of the air valve is fixed with a top ring that is attached to the valve rubber seat.

3. A pressure balanced valve according to claim 1, characterized in that: The lower portion of the first cavity is provided with a convex ring that is fixed to the inner wall of the valve body, and the lower portion of the valve rubber seat is attached to the convex ring.

4. A pressure balanced valve according to claim 1, characterized in that: The middle portion of the spring upper seat is provided with a first filter screen.

5. A pressure balanced valve according to claim 1, characterized in that: The second cavity is clamped with a rubber ring, and the upper portion of the rubber ring is placed with a second filter screen.

6. A pressure balanced valve according to claim 1, characterized in that: The upper portion of the steam valve is fixed with a top ring, the air valve spring is located in the inner ring of the top ring, and the steam valve spring is located in the outer ring of the top ring.

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