Pressure balance valve assembly

Abstract

The utility model is suitable for the technical field of pressure balance valves, and provides a pressure balance valve assembly which comprises a shell, one end of the shell is provided with a water inlet, the other end of the shell is provided with a water outlet, the inner wall of the shell is fixedly connected with a sealing ring, the inner wall of the shell is further fixedly connected with a fixing piece, and the fixing piece is fixedly connected with the sealing ring. A fixing cylinder is fixedly connected to the middle of the fixing part, a pressure balance part is arranged in the fixing cylinder and comprises a sealing structure used for sealing the sealing ring and a pressure balance structure used for adjusting the pressure of the two ends in the shell, and the sealing structure comprises a first abutting rod; the first abutting rod penetrates through the end of the fixing cylinder. By arranging the pressure balance structure, the pressure of the water inlet and the water outlet of the shell can be balanced, and compared with an existing pressure balance structure, the shell structure is integrally arranged, the size is smaller, and therefore the application range of the device can be widened.

Description

Technical Field

[0001] The utility model belongs to a pressure balancing valve, in particular to a pressure balancing valve assembly. Background Art

[0002] The balancing valve adjusts the medium flow by controlling the opening of the opening and closing parts in the valve, changes the pressure of the medium, and adjusts the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is stable within a certain range.

[0003] The existing pressure balancing valve has the following shortcomings:

[0004] The existing automatic pressure balancing valve is generally a split structure, so it occupies a large volume, thereby reducing the application range of the device. Utility Model Content

[0005] The utility model provides a pressure balancing valve assembly, aiming to solve the problem mentioned in the above background technology that the existing automatic pressure balancing valve is generally a split structure, so it occupies a large volume, thereby reducing the application range of the device.

[0006] The utility model is implemented as follows: a pressure balancing valve assembly comprises a shell, one end of the shell is provided with a water inlet, the other end of the shell is provided with a water outlet, a sealing ring is fixedly connected to the inner wall of the shell, a fixing piece is also fixedly connected to the inner wall of the shell, a fixing cylinder is fixedly connected to the middle part of the fixing piece, and a pressure balancing component is arranged inside the fixing cylinder.

[0007] Preferably, the pressure balancing component includes a sealing structure for sealing the sealing ring, and a pressure balancing structure for adjusting the pressure at both ends of the housing.

[0008] Preferably, the sealing structure comprises a first push rod, the first push rod is arranged to penetrate the end of the fixed tube, the first push rod is slidably connected to the fixed tube, one end of the first push rod is fixedly connected to a first slider, the other end of the first push rod is fixedly connected to a sealing plate, and the sealing plate corresponds to the sealing ring;

[0009] When the first slider is subjected to force, the first slider will drive the sealing plate to slide through the first abutment rod. When the sealing plate abuts against the sealing ring, the water inlet and the water outlet can be sealed.

[0010] Preferably, the pressure balancing structure comprises a fixing ring, an air bag and a second push rod, the fixing ring is sleeved on the outer circumference of the fixing tube, and the fixing ring is fixedly connected to the fixing tube;

[0011] The end of the airbag is recessed with a pressure bag, the end of the airbag is also fixedly connected with a connecting ring, the end of the connecting ring is sleeved with the fixing tube, and the connecting ring and the fixing ring are fixedly connected by bolts;

[0012] The second push rod is arranged to pass through the end of the fixed cylinder, the second push rod is slidably connected to the fixed cylinder, one end of the second push rod is plugged into the pressure bag, the other end of the second push rod is fixedly connected to the second slider, a pressure spring is arranged between the second slider and the first slider, one end of the pressure spring is against the second slider, and the other end of the pressure spring is against the first spring;

[0013] In the initial state, the pressure spring will squeeze the first slider, at which time the first slider will drive the sealing plate to slide through the first push rod, and when the sealing plate and the sealing ring are against each other, the water inlet and the water outlet can be sealed. When the water pressure at the water inlet is greater than the elastic force applied by the pressure spring to the sealing plate, the sealing plate will be pushed open, and the water flow at the water inlet can enter the shell through the middle of the sealing ring. At this time, the water pressure at the water outlet will squeeze the airbag, and the pressure-bearing bag inside the airbag will squeeze and drive the second push rod to move after the airbag is pressurized. At the same time, the second push rod will drive the second push block to squeeze the pressure spring. The elastic force of the pressure spring will increase after being pressurized, so the pressure between the sealing plate and the sealing ring will increase, so that the water flow at the water inlet needs a greater pressure to push open the sealing plate. Therefore, the pressure between the water inlet and the water outlet can be balanced in the above manner.

[0014] Preferably, a plurality of guide grooves are provided on the inner wall of the fixed cylinder, the number of the guide grooves is set to be multiple, the plurality of guide grooves are distributed around the center of the fixed cylinder, a plurality of first guide blocks are fixedly connected to the outer periphery of the first sliding block, the plurality of first guide blocks are respectively slidably connected to the plurality of first guide grooves, a plurality of second guide blocks are fixedly connected to the outer periphery of the second sliding block, the plurality of second guide blocks are respectively slidably connected to the plurality of guide grooves;

[0015] The first slider is slidably connected to the slide groove through the first guide block, which can improve the stability of the first slider when sliding. The second slider is slidably connected to the slide groove through the second guide block, which can improve the stability of the second slider when sliding.

[0016] Compared with the prior art, the utility model has the following beneficial effects: a pressure balancing valve assembly of the utility model:

[0017] By setting up a pressure balancing structure, the pressure at the water inlet and outlet of the shell can be balanced. Compared with the existing pressure balancing structure, the shell structure of this patent is integrated and has a smaller volume, which is beneficial to improving the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a cross-sectional view of the pressure balancing component of the utility model;

[0021] Figure 4 It is a cross-sectional view of the fixing tube of the utility model;

[0022] Figure 5 It is a cross-sectional view of the airbag of the present utility model.

[0023] In the figure:

[0024] 1. Shell; 11. Water inlet; 12. Water outlet; 13. Sealing ring; 14. Fixing piece; 15. Fixing cylinder;

[0025] 2. Pressure balancing components;

[0026] 21. Sealing structure; 211. First stop rod; 212. First slider; 213. Sealing plate;

[0027] 22. pressure balance structure; 221. fixing ring; 222. airbag; 223. second push rod; 224. pressure bag; 225. connecting ring; 226. second slider; 227. pressure spring;

[0028] 3. Guide groove; 31. First guide block; 32. Second guide block. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] See also Figure 1-3 The utility model provides a technical solution: a pressure balancing valve assembly, including a shell 1, a water inlet 11 is opened at one end of the shell 1, a water outlet 12 is opened at the other end of the shell 1, a sealing ring 13 is fixedly connected to the inner wall of the shell 1, a fixing member 14 is also fixedly connected to the inner wall of the shell 1, a fixing tube 15 is fixedly connected to the middle of the fixing member 14, and a pressure balancing component 2 is arranged inside the fixing tube 15.

[0035] Furthermore, the pressure balancing component 2 includes a sealing structure 21 for sealing the sealing ring 13 , and a pressure balancing structure 22 for adjusting the pressure at both ends of the housing 1 .

[0036] Furthermore, the sealing structure 21 includes a first push rod 211, which passes through the end of the fixed tube 15 and is slidably connected to the fixed tube 15. One end of the first push rod 211 is fixedly connected to a first slider 212, and the other end of the first push rod 211 is fixedly connected to a sealing plate 213, which corresponds to the sealing ring 13.

[0037] Furthermore, the pressure balance structure 22 includes a fixing ring 221, an air bag 222 and a second stop rod 223. The fixing ring 221 is sleeved on the outer periphery of the fixing tube 15, and the fixing ring 221 is fixedly connected to the fixing tube 15.

[0038] A pressure-bearing bag 224 is recessed at the end of the airbag 222, and a connecting ring 225 is fixedly connected to the end of the airbag 222. The end of the connecting ring 225 is sleeved with the fixing tube 15, and the connecting ring 225 is fixedly connected to the fixing ring 221 by bolts.

[0039] The second push rod 223 is arranged to pass through the end of the fixed cylinder 15, and the second push rod 223 is slidably connected to the fixed cylinder 15. One end of the second push rod 223 is plugged into the pressure bag 224, and the other end of the second push rod 223 is fixedly connected to the second slider 226. A pressure spring 227 is provided between the second slider 226 and the first slider 212, one end of the pressure spring 227 is against the second slider 226, and the other end of the pressure spring 227 is against the first spring.

[0040] Furthermore, a plurality of guide grooves 3 are provided on the inner wall of the fixed cylinder 15, and the number of the guide grooves 3 is set to be multiple, and the plurality of guide grooves 3 are distributed around the center of the fixed cylinder 15. A plurality of first guide blocks 31 are fixedly connected to the periphery of the first slider 212, and the plurality of first guide blocks 31 are respectively slidably connected to the plurality of first guide grooves 3. A plurality of second guide blocks 32 are fixedly connected to the periphery of the second slider 226, and the plurality of second guide blocks 32 are respectively slidably connected to the plurality of guide grooves 3.

[0041] The working principle and use process of this utility model:

[0042] In the initial state, the pressure spring 227 will squeeze the first slider 212. At this time, the first slider 212 will drive the sealing plate 213 to slide through the first push rod 211. When the sealing plate 213 and the sealing ring 13 are pressed against each other, the water inlet 11 and the water outlet 12 can be sealed. When the water pressure of the water inlet 11 is greater than the elastic force applied by the pressure spring 227 to the sealing plate 213, the sealing plate 213 will be pushed open. At this time, the water flow of the water inlet 11 can enter the interior of the housing 1 through the middle of the sealing ring 13. The water pressure at the water outlet 12 will squeeze the airbag 222. After the airbag 222 is pressurized, the pressure bag 224 inside it will squeeze and drive the second push rod 223 to move. At the same time, the second push rod 223 will drive the second push block to squeeze the pressure spring 227. After the pressure is compressed, its elastic force will increase, so the pressure between the sealing plate 213 and the sealing ring 13 will increase, so that the water flow at the water inlet 11 requires a greater pressure to push open the sealing plate 213. Therefore, the pressure between the water inlet 11 and the water outlet 12 can be balanced in the above manner.

Claims

1. A pressure balancing valve assembly, comprising a housing (1), characterized in that: A water inlet (11) is provided at one end of the shell (1), and a water outlet (12) is provided at the other end of the shell (1). A sealing ring (13) is fixedly connected to the inner wall of the shell (1). A fixing member (14) is also fixedly connected to the inner wall of the shell (1). A fixing cylinder (15) is fixedly connected to the middle of the fixing member (14), and a pressure balancing member (2) is provided inside the fixing cylinder (15).

2. A pressure balancing valve assembly according to claim 1, characterized in that: The pressure balancing component (2) comprises a sealing structure (21) for sealing the sealing ring (13), and a pressure balancing structure (22) for adjusting the pressure at both ends of the housing (1).

3. A pressure balancing valve assembly according to claim 2, characterized in that: The sealing structure (21) comprises a first push rod (211), the first push rod (211) is arranged to pass through the end of the fixed tube (15), the first push rod (211) is slidably connected to the fixed tube (15), one end of the first push rod (211) is fixedly connected to a first sliding block (212), and the other end of the first push rod (211) is fixedly connected to a sealing plate (213), and the sealing plate (213) corresponds to the sealing ring (13).

4. A pressure balancing valve assembly as claimed in claim 3, characterized in that: The pressure balancing structure (22) comprises a fixing ring (221), an air bag (222) and a second push rod (223); the fixing ring (221) is sleeved on the outer circumference of the fixing tube (15); and the fixing ring (221) is fixedly connected to the fixing tube (15); The end of the airbag (222) is recessed with a pressure bag (224), and the end of the airbag (222) is also fixedly connected with a connecting ring (225). The end of the connecting ring (225) is sleeved with the fixing tube (15), and the connecting ring (225) is fixedly connected to the fixing ring (221) by bolts. The second push rod (223) is arranged to pass through the end of the fixed cylinder (15), the second push rod (223) is slidably connected to the fixed cylinder (15), one end of the second push rod (223) is plugged into the pressure bag (224), the other end of the second push rod (223) is fixedly connected to the second slider (226), a pressure spring (227) is provided between the second slider (226) and the first slider (212), one end of the pressure spring (227) is against the second slider (226), and the other end of the pressure spring (227) is against the first spring.

5. A pressure balancing valve assembly as claimed in claim 4, characterized in that: The inner wall of the fixed cylinder (15) is provided with a plurality of guide grooves (3), the number of the guide grooves (3) is set to be a plurality, and the plurality of guide grooves (3) are distributed around the center of the fixed cylinder (15); the outer periphery of the first sliding block (212) is fixedly connected with a plurality of first guide blocks (31), and the plurality of first guide blocks (31) are respectively slidably connected to the plurality of first guide grooves (3); the outer periphery of the second sliding block (226) is fixedly connected with a plurality of second guide blocks (32), and the plurality of second guide blocks (32) are respectively slidably connected to the plurality of guide grooves (3).

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