Pneumatic high-flow corrugated pipeline valve

Abstract

The utility model relates to the technical field of valves, and particularly discloses a pneumatic high-flow corrugated pipeline valve which comprises a power assembly and a valve body assembly, and the power assembly is fixedly connected to the valve body assembly. The power assembly comprises an air cylinder cover, large springs, small springs, first screws, first nuts, flat washers, first O-shaped rings, second O-shaped rings, an air cylinder body, second nuts and a piston, the air cylinder cover is fixedly connected to the air cylinder body through the first screws, and the multiple large springs and the multiple small springs are arranged between the air cylinder cover and the piston. The large springs and the small springs are fixedly connected between the air cylinder cover and the piston, the second O-shaped rings are symmetrically arranged, and the two second O-shaped rings are fixedly connected to the two sides of the piston. The multiple springs can assist the pneumatic cylinder in controlling opening and closing of the valve, energy consumption is reduced, pressure can be effectively divided by the multiple springs, the loss degree of a single spring is reduced, and the service life of the whole valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a pneumatic large-flow corrugated pipeline valve. Background Art

[0002] Pneumatic bellows pipe valve is a valve that uses pneumatic signals to control the valve core opening, thereby adjusting the medium flow. It is widely used in industrial applications that require high sealing and stable control, especially in the chemical, petroleum, natural gas, food and pharmaceutical industries.

[0003] The current existing technology still has the following areas for improvement: In pneumatic pipeline valves, there are usually no or only a small number of springs to assist the pneumatic cylinder in controlling the opening and closing of the valve. When controlling the release or sealing of a large flow of fluid, a large amount of power is required, which is very energy-consuming. In addition, when the valve is opened and closed, the large flow of fluid will produce a huge impact force on the pneumatic cylinder. There is no auxiliary pressure dividing device, and the small amount of spring has a large loss rate. It is necessary to frequently check and replace the spring to maintain the normal operation of the valve opening and closing function. The operation is cumbersome and the cost is increased. Utility Model Content

[0004] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a pneumatic large-flow corrugated pipe valve, which can realize multiple springs to assist the pneumatic cylinder to control the opening and closing of the valve, reduce energy consumption, and the multiple springs can effectively divide the pressure, reducing the loss of a single spring and increasing the overall service life of the valve.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A pneumatic large-flow corrugated pipeline valve comprises a power assembly and a valve body assembly, wherein the power assembly is fixedly connected to the valve body assembly;

[0007] The power assembly includes a cylinder head, a large spring, a small spring, a first screw, a first nut, a flat washer, a first O-ring, a second O-ring, a cylinder body, a second nut and a piston. The cylinder head is fixedly connected to the cylinder body by the first screw. A plurality of large springs and small springs are arranged between the cylinder head and the piston. The plurality of large springs and small springs are fixedly connected between the cylinder head and the piston. The second O-ring is symmetrically arranged. Two of the second O-rings are fixedly connected to both sides of the piston. The second nut is symmetrically arranged. The cylinder body is fixedly connected to the valve body assembly by the two second nuts.

[0008] The valve body assembly includes a second screw, a valve cover, a sealing ring, a pressure cover, a valve stem, a valve body, a retaining ring, an elastic retaining ring, a sealing member, a bellows, a third O-ring, a fourth O-ring and a valve head. The second screw and the pressure cover are symmetrically arranged on the valve cover, two of the second screws are fixedly connected to the upper sides of the valve cover, two of the pressure covers are fixedly connected to the lower sides of the valve cover, the sealing rings are symmetrically arranged, two of the sealing rings are fixedly connected to adjacent pressure covers, and two of the sealing rings are fixedly connected between adjacent pressure covers and the valve body.

[0009] Preferably, the bellows are symmetrically arranged, and the two bellows are fixedly connected between the adjacent pressure covers and the valve heads. The valve head is fixedly connected to the valve stem through a retaining ring and an elastic retaining ring. The seals are symmetrically arranged, and two seals are fixedly connected below both sides of the valve head.

[0010] Preferably, the valve stem passes through the power assembly and the valve body assembly, and a first nut and a flat washer are symmetrically arranged on the top of the valve stem. The valve stem is fixedly connected to the piston through two first nuts and flat washers, and the first O-ring is fixedly connected between the piston and the valve stem.

[0011] Preferably, the piston is arranged in a mountain shape, and the large spring and the small spring are fixedly connected above the horizontal section of the piston.

[0012] Preferably, a groove is provided in the middle of the vertical sections on both sides of the piston, the groove matches the second O-ring, and two second O-rings are fixedly connected to the grooves of the piston on both sides.

[0013] Preferably, the large spring is sleeved on the small spring, the large spring is fixedly connected to the inside of two sides of the piston, and the small spring is fixedly connected to two sides of the vertical section in the middle of the piston.

[0014] Preferably, the fourth O-ring is fixedly connected between the valve stem and the valve cover, and the fourth O-ring is located on the top of the valve cover.

[0015] Preferably, the third O-rings are symmetrically arranged, and two third O-rings are fixedly connected between adjacent cylinder bodies and valve covers.

[0016] The beneficial effects of the utility model are:

[0017] (1) By setting a power assembly, the technical effect that can be achieved is that the second screws are fixedly connected to the upper part of both sides of the valve cover, so that the valve cover can be stably installed on the upper part of the valve body. The sealing of the connection between the valve cover and the valve body is ensured by the symmetrically arranged pressure cover and sealing ring between the valve cover and the valve body. The two symmetrically arranged bellows are fixedly connected between the adjacent pressure covers and the valve head, so that the force on the valve head is uniform, which is convenient for accurately controlling the movement of the valve head to the specified position and controlling the opening and closing of the valve. The sealing parts are fixedly connected to the lower part of both sides of the valve head to ensure the air tightness of the valve.

[0018] (2) By setting up the valve body assembly, the technical effect that can be achieved is that setting up multiple large springs and small springs can be used as an auxiliary power source to reduce the energy consumption during system operation, especially when maintaining the valve state, reducing the frequent start and stop requirements of the power system, which can reduce energy costs and extend the service life of the power system. In addition, in the case of insufficient or failed air pressure, multiple large springs and small springs can provide sufficient force to close or open the valve, thereby ensuring that the basic function of the valve is not affected. This auxiliary power source ensures the safe operation of the system under abnormal conditions. The setting of multiple large springs and small springs can provide additional stability to prevent the valve from malfunctioning due to changes in the external environment or vibration, making it easier for the valve to accurately control the flow of the fluid. At the same time, setting up multiple large springs and small springs can effectively divide the pressure, reduce the loss of a single spring, and increase the overall service life of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 For the utility model Figure 1 Enlarged view of point B in the middle;

[0023] Description of main component symbols:

[0024] In the figure: 1. cylinder head; 2. large spring; 3. small spring; 4. first screw; 5. first nut; 6. flat washer; 7. first O-ring; 8. second O-ring; 9. cylinder body; 10. second nut; 11. second screw; 12. valve cover; 13. sealing ring; 14. gland; 15. valve stem; 16. valve body; 17. retaining ring; 18. elastic retaining ring; 19. sealing element; 20. bellows; 21. third O-ring; 22. fourth O-ring; 23. piston; 24. valve head. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 this application can be understood according to specific circumstances.

[0028] Reference Figures 1 to 3 The utility model discloses a pneumatic large-flow corrugated pipeline valve, comprising a power assembly and a valve body assembly, wherein the power assembly is fixedly connected to the valve body assembly;

[0029] The power assembly includes a cylinder head 1, a large spring 2, a small spring 3, a first screw 4, a first nut 5, a flat washer 6, a first O-ring 7, a second O-ring 8, a cylinder body 9, a second nut 10 and a piston 23. The cylinder head 1 is fixedly connected to the cylinder body 9 by the first screw 4. A plurality of large springs 2 and small springs 3 are arranged between the cylinder head 1 and the piston 23. The plurality of large springs 2 and small springs 3 are fixedly connected between the cylinder head 1 and the piston 23. The second O-ring 8 is symmetrically arranged. Two second O-rings 8 are fixedly connected to both sides of the piston 23. The second nut 10 is symmetrically arranged. The cylinder body 9 is fixedly connected to the valve body assembly by the two second nuts 10.

[0030] The valve body assembly includes a second screw 11, a valve cover 12, a sealing ring 13, a pressure cover 14, a valve stem 15, a valve body 16, a retaining ring 17, an elastic retaining ring 18, a sealing member 19, a bellows 20, a third O-ring 21, a fourth O-ring 22 and a valve head 24. The second screw 11 and the pressure cover 14 are symmetrically arranged on the valve cover 12. The two second screws 11 are fixedly connected to the upper sides of the valve cover 12 so that the valve cover 12 is stably installed above the valve body 16. The two pressure covers 14 are fixedly connected to the lower sides of the valve cover 12. The sealing rings 13 are symmetrically arranged. The two sealing rings 13 are fixedly connected between adjacent pressure covers 14 and the valve body 16 to ensure the sealing of the connection between the valve cover 12 and the valve body 16.

[0031] Reference Figure 1 The bellows 20 are symmetrically arranged, and the two bellows 20 are fixedly connected between the adjacent glands 14 and the valve heads 24, so that the valve heads 24 are evenly stressed, which facilitates accurate control of the valve heads 24 to move to a specified position and control the opening and closing of the valve. The valve heads 24 are fixedly connected to the valve stem 15 through the retaining ring 17 and the elastic retaining ring 18. The sealing members 19 are symmetrically arranged, and the two sealing members 19 are fixedly connected to the lower sides of the valve heads 24 to ensure the air tightness of the valve.

[0032] Reference Figure 1 and Figure 2 The valve stem 15 runs through the power assembly and the valve body assembly, and the first nut 5 and the flat washer 6 are symmetrically arranged on the top of the valve stem 15. The valve stem 15 is fixedly connected to the piston 23 through two first nuts 5 and flat washers 6, and the first O-ring 7 is fixedly connected between the piston 23 and the valve stem 15; the piston 23 is arranged in a mountain shape, and the large spring 2 and the small spring 3 are fixedly connected above the horizontal section of the piston 23; grooves are arranged in the middle of the vertical sections on both sides of the piston 23, and the grooves match the second O-rings 8, and the two second O-rings 8 are fixedly connected to the grooves of the pistons 23 on both sides; the large spring 2 is sleeved on the small spring 3, and the large spring 2 is fixedly connected to the inside of the two sides of the piston 23, and the small spring 3 is fixedly connected to both sides of the vertical section in the middle of the piston 23.

[0033] Arranging multiple large springs 2 and small springs 3 can be used as an auxiliary power source to reduce energy consumption during system operation, especially when maintaining the valve state, reducing the need for frequent start and stop of the power system, which can reduce energy costs and extend the service life of the power system. In addition, in the event of insufficient or failed air pressure, multiple large springs 2 and small springs 3 can provide sufficient force to close or open the valve, thereby ensuring that the basic function of the valve is not affected. This auxiliary power source ensures the safe operation of the system under abnormal conditions. The arrangement of multiple large springs 2 and small springs 3 can provide additional stability to prevent the valve from malfunctioning due to changes in the external environment or vibration, making it easier for the valve to accurately control the flow rate of the fluid. At the same time, arranging multiple large springs 2 and small springs 3 can effectively divide the pressure, reduce the loss of a single spring, and increase the overall service life of the valve.

[0034] Reference Figure 1 and Figure 3 The fourth O-ring 22 is fixedly connected between the valve stem 15 and the valve cover 12 , and the fourth O-ring 22 is located at the top of the valve cover 12 ; the third O-ring 21 is symmetrically arranged, and two third O-rings 21 are fixedly connected between adjacent cylinder bodies 9 and valve covers 12 .

[0035] The working principle and use process of the utility model are as follows: when the valve needs to be closed, the cylinder is started and controlled to be pressed down, the large spring 2 and the small spring 3 are compressed, driving the piston 23 to be pressed down, and the bellows 20 assists in pushing the valve stem 15 and the valve head 24 to move to the specified position to close the gate.

[0036] When the valve needs to be opened, the cylinder is started and controlled to lift up, the large spring 2 and the small spring 3 are reset, driving the piston 23 to move up, and the bellows 20 assists in pushing the valve stem 15 and the valve head 24 to move to the specified position to open the gate.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A pneumatic large flow corrugated pipeline valve, characterized in that: It comprises a power assembly and a valve body assembly, wherein the power assembly is fixedly connected to the valve body assembly; The power assembly comprises a cylinder head (1), a large spring (2), a small spring (3), a first screw (4), a first nut (5), a flat washer (6), a first O-ring (7), a second O-ring (8), a cylinder body (9), a second nut (10) and a piston (23); the cylinder head (1) is fixedly connected to the cylinder body (9) via the first screw (4); a plurality of large springs (2) and small springs (3) are arranged between the cylinder head (1) and the piston (23); the plurality of large springs (2) and small springs (3) are fixedly connected between the cylinder head (1) and the piston (23); the second O-ring (8) is symmetrically arranged; two of the second O-rings (8) are fixedly connected to both sides of the piston (23); the second nut (10) is symmetrically arranged; and the cylinder body (9) is fixedly connected to the valve body assembly via the two second nuts (10); The valve body assembly comprises a second screw (11), a valve cover (12), a sealing ring (13), a gland (14), a valve stem (15), a valve body (16), a retaining ring (17), an elastic retaining ring (18), a sealing member (19), a bellows (20), a third O-ring (21), a fourth O-ring (22) and a valve head (24); the second screw (11) and the gland (14) are symmetrically arranged on the valve cover; two of the second screws (11) are fixedly connected to the upper sides of the valve cover (12); two of the glands (14) are fixedly connected to the lower sides of the valve cover (12); the sealing rings (13) are symmetrically arranged; two of the sealing rings (13) are fixedly connected to adjacent glands (14); and two of the sealing rings (13) are fixedly connected between adjacent glands (14) and the valve body (16).

2. A pneumatic large flow corrugated pipeline valve according to claim 1, characterized in that: The bellows (20) are symmetrically arranged, and the two bellows (20) are fixedly connected between the adjacent glands (14) and the valve heads (24). The valve heads (24) are fixedly connected to the valve stem (15) via a retaining ring (17) and an elastic retaining ring (18). The sealing members (19) are symmetrically arranged, and the two sealing members (19) are fixedly connected to the lower sides of the valve heads (24).

3. The pneumatic large flow corrugated pipeline valve according to claim 1, characterized in that: The valve stem (15) passes through the power assembly and the valve body assembly. A first nut (5) and a flat washer (6) are symmetrically arranged on the top of the valve stem (15). The valve stem (15) is fixedly connected to the piston (23) via two first nuts (5) and the flat washer (6). The first O-ring (7) is fixedly connected between the piston (23) and the valve stem (15).

4. The pneumatic large flow corrugated pipeline valve according to claim 1, characterized in that: The piston (23) is arranged in a mountain shape, and the large spring (2) and the small spring (3) are fixedly connected above the horizontal section of the piston (23).

5. A pneumatic large flow corrugated pipeline valve according to claim 4, characterized in that: A groove is provided in the middle of the vertical sections on both sides of the piston (23), and the groove matches the second O-ring (8). The two second O-rings (8) are fixedly connected to the grooves of the piston (23) on both sides.

6. The pneumatic large flow corrugated pipeline valve according to claim 4, characterized in that: The large spring (2) is sleeved on the small spring (3), the large spring (2) is fixedly connected to the inside of both sides of the piston (23), and the small spring (3) is fixedly connected to both sides of the middle vertical section of the piston (23).

7. The pneumatic large flow corrugated pipeline valve according to claim 3, characterized in that: The fourth O-ring (22) is fixedly connected between the valve stem (15) and the valve cover (12), and the fourth O-ring (22) is located on the top of the valve cover (12).

8. The pneumatic large flow corrugated pipeline valve according to claim 1, characterized in that: The third O-rings (21) are symmetrically arranged, and two third O-rings (21) are fixedly connected between adjacent cylinder bodies (9) and valve covers (12).

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