Ball regulating valve capable of circularly controlling on-off of water flow

Abstract

The utility model discloses a ball regulating valve capable of cyclically controlling water flow, which comprises a valve body, a valve ball and a main body component, trapezoidal ring grooves matched with the outer wall of the valve ball are arranged on the left side and the right side of the inner wall of the valve body, sealing rings are fixedly connected in the two trapezoidal ring grooves, and the section of each trapezoidal ring groove is designed into a special trapezoid. Grooves are formed in the inner sides of the two sealing rings so as to be attached to the sealing rings more tightly; according to the combined sealing structure, the sealing performance of the valve is effectively improved, in the long-term water flow on-off circulation control process, due to the arrangement of the sealing ring, the elastic ring and the metal corrugated pipe, the extremely low leakage rate can be kept, water resource waste is effectively prevented, the abrasion resistance and the corrosion resistance of the sealing piece are enhanced, and the service life of the valve is prolonged. Particularly, due to the self-adaptability between the metal corrugated pipe and the O-shaped sealing gasket and the valve ball, impurities entering a sealing surface during conveying are reduced, and the service life of the sealing assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a spherical regulating valve capable of cyclically controlling the flow of water. Background Art

[0002] Valves play a vital role in the transport and control of fluids in numerous industrial fields and daily life. Key valve products include ball valves, globe valves, check valves, and gate valves. They control the flow rate, pressure, and direction of fluids (liquids, gases, etc.), ensuring the safe and efficient operation of fluid systems. Valve performance directly impacts the stability, reliability, and energy efficiency of the entire fluid system. Valves are widely used in industries such as petroleum, chemical engineering, metallurgy, electronics, machinery, textiles, food, pharmaceuticals, gas, construction, water supply, and environmental protection.

[0003] Traditional ball control valves have numerous limitations when it comes to controlling water flow on and off. Frequent water flow on and off cycles can easily wear out the seals of traditional ball control valves. Each time the ball rotates open or closes, the seals are subjected to fluid pressure and friction. Especially in aqueous media, impurities can become trapped between the sealing surfaces, exacerbating seal wear and degrading sealing performance. This degraded sealing performance can lead to leakage when the valve is closed, wasting water and potentially impacting the normal operation of the entire system.

[0004] Therefore, a ball regulating valve capable of cyclically controlling the flow of water is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a ball regulating valve which can circulate and control the water flow, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ball regulating valve for cyclically controlling the flow of water, comprising a valve body, a valve ball and a main body assembly, the left and right sides of the inner wall of the valve body are provided with trapezoidal ring grooves matching the outer wall of the valve ball, the interiors of the two trapezoidal ring grooves are fixedly connected with sealing rings, the inner sides of the two sealing rings are provided with grooves, the interiors of the two grooves are fixedly connected with elastic rings matching the outer wall of the valve ball, the inner sides of the two elastic rings are provided with metal bellows, the opposite ends of the two metal bellows are provided with arc grooves, the interiors of the two arc grooves are fixedly connected with O-type sealing gaskets matching the outer wall of the valve ball.

[0007] Preferably, mounting rings are installed at opposite ends of the two metal bellows, and the two mounting rings are respectively installed at the corresponding output end and input end of the valve body.

[0008] Preferably, the main body assembly includes an upper valve stem connected to the valve body, a control unit is installed on the upper end of the upper valve stem, and a valve ball is installed on the lower end of the upper valve stem.

[0009] Preferably, a flexible coupling is installed at the lower end of the upper valve stem, and the lower end of the flexible coupling is installed on the valve ball.

[0010] Preferably, the two sealing rings are made of polytetrafluoroethylene material, the two elastic rings and the O-type sealing gasket are made of fluororubber material, and the two mounting rings and the metal bellows are made of stainless steel material.

[0011] Preferably, an interface connection pad is provided on the outer side of the two mounting rings, and the two interface connection pads are fixedly connected to the valve body.

[0012] Preferably, the output end and the input end of the valve body are both installed with connecting flanges, and the two connecting flanges are both made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The combined sealing structure of the utility model effectively improves the sealing performance of the valve. In the long-term water flow interruption and circulation control process, the setting of the sealing ring, elastic ring and metal bellows can maintain an extremely low leakage rate, effectively prevent the waste of water resources, and enhance the wear resistance and corrosion resistance of the seal. In particular, the adaptability between the metal bellows and the O-ring gasket and the valve ball can reduce the entry of impurities into the sealing surface during transportation, extend the service life of the sealing component, and reduce the maintenance and replacement costs of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] In the figure: 1. Valve body; 2. Connecting flange; 3. Upper valve stem; 4. Control unit; 5. Valve ball; 6. Trapezoidal ring groove; 7. Sealing ring; 8. Groove; 9. Elastic ring; 10. Mounting ring; 11. Metal bellows; 12. Arc groove; 13. O-ring sealing gasket; 14. Flexible coupling; 15. Interface connection gasket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-3 The utility model provides a technical solution: a ball regulating valve that can circulate and control the flow of water, including a valve body 1, a valve ball 5 and a main body assembly. The left and right sides of the inner wall of the valve body 1 are provided with trapezoidal ring grooves 6 that match the outer wall of the valve ball 5. The inside of the two trapezoidal ring grooves 6 are fixedly connected with sealing rings 7. The cross-sectional shape of the trapezoidal ring grooves 6 is designed to be a special trapezoid. In order to fit the sealing ring 7 more closely, the inner sides of the two sealing rings 7 are provided with grooves 8. The insides of the two grooves 8 are fixedly connected with elastic rings 9 that match the outer wall of the valve ball 5. The inner sides of the two elastic rings 9 are provided with metal bellows 11. The opposite ends of the two metal bellows 11 are provided with arc grooves 12. The insides of the two arc grooves 12 They are all fixedly connected to the O-type sealing gasket 13 that matches the outer wall of the valve ball 5. The cross-sectional shapes of the sealing ring 7, the elastic ring 9 and the O-type sealing gasket 13 can be designed to be O-shaped or lip-shaped. The inner diameter is slightly smaller than the diameter of the sphere. After installation, a certain holding force will be formed on the surface of the sphere. The opposite ends of the two metal bellows 11 are installed with mounting rings 10. The two mounting rings 10 are respectively installed on the output end and input end corresponding to the valve body 1. In the initial state, the valve is in the closed position. At this time, the through hole of the valve ball 5 is completely staggered with the inlet and outlet channels of the valve body 1. The sealing structure composed of the sealing ring 7, the elastic ring 9, the metal bellows 11 and the O-type sealing gasket 13 is in a sealed state to prevent water in the cooling water pool from flowing back to the cooling water pump.

[0021] like Figure 2 As shown, the main body component includes an upper valve stem 3 connected to the valve body 1, and a control unit 4 is installed at the upper end of the upper valve stem 3. The operator can open, close and adjust the flow of the valve through the operation button on the control unit 4. The lower end of the upper valve stem 3 is installed with a valve ball 5, and the lower end of the upper valve stem 3 is installed with a flexible coupling 14. The lower end of the flexible coupling 14 is installed on the valve ball 5. The valve ball 5 is driven to rotate by the upper valve stem 3 and the flexible coupling 14. The valve ball 5 starts to rotate slowly, and its through hole gradually aligns with the inlet and outlet channels of the valve body 1. During the process, the sealing ring 7 slides relative to the surface of the valve ball 5, and the elastic ring 9 elastically deforms with the rotation of the valve ball 5, always maintaining close contact with the valve ball 5. The metal bellows 11 adaptively deforms following the movement of the valve ball 5. The O-type sealing gasket 13 maintains good sealing contact with the valve ball 5 under the support of the metal bellows 11 to prevent impurities from entering the sealing surface.

[0022] like Figure 1 and 2 As shown, the two sealing rings 7 are made of polytetrafluoroethylene material, which has excellent chemical stability, low friction coefficient and good self-lubrication. The two elastic rings 9 and the O-type sealing gasket 13 are made of fluororubber material. The two mounting rings 10 and the metal bellows 11 are made of 304 stainless steel material. The 304 stainless steel material has good elasticity and corrosion resistance. It can adaptively follow the deformation of the ball during the rotation of the ball, effectively preventing external impurities from entering the sealing surface, and at the same time provide additional sealing force when the valve is closed, further enhancing the sealing effect. The outer sides of the two mounting rings 10 are provided with interface connection pads 15, and the two interface connection pads 15 are fixedly connected to the valve body 1. The interface connection pads 15 further improve the sealing performance of the connection between the output end and the input end of the valve body 1.

[0023] The output end and the input end of the valve body 1 are both installed with connecting flanges 2. Both connecting flanges 2 are made of 316 stainless steel material. The 316 stainless steel material has good corrosion resistance and mechanical strength, and is convenient for long-term use.

[0024] The working principle is as follows: when the device is in use, when it is necessary to open the valve to conduct water flow, the control unit 4 receives an opening signal, which can come from an automatic control system, a manual operation button or other control device, and belongs to the prior art. The control unit 4 connects the drive device to the upper valve stem 3 according to a preset program or the operator's instruction. It is not shown in detail in the figure, but it can be understood as a mechanism that drives the upper valve stem 3 to rotate, such as an electric actuator or a pneumatic actuator. The action instruction is sent, the drive device is started, and the torque is output. The torque output by the drive device is transmitted through the upper valve stem 3. The lower end of the upper valve stem 3 is connected to the valve ball 5 through a flexible coupling 14. The flexible coupling 14 can effectively transmit torque and compensate for the slight installation deviation that may exist between the valve ball 5 and the upper valve stem 3 or the relative displacement generated during the movement. After the torque is transmitted to the valve ball 5, the valve ball 5 begins to rotate around its axis;

[0025] During the rotation of the valve ball 5, the sealing ring 7 and the surface of the valve ball 5 maintain relative sliding. Due to the low friction coefficient characteristic of the sealing ring 7, the valve ball 5 can rotate smoothly with less friction, reducing the load on the driving device. At the same time, the fluororubber material of the elastic ring 9 in the groove 8 inside the sealing ring 7 undergoes a certain degree of elastic deformation as the valve ball 5 rotates, but always maintains close contact with the valve ball 5. One end of the metal bellows 11 is fixed to the valve body 1 through the mounting ring 10, and the other end is in close contact with the valve ball 5 through the O-ring sealing gasket 13 in the arc groove 12. When the valve ball 5 rotates, the metal bellows 11 can adaptively follow the movement of the valve ball 5 and deform. Its corrugated structure allows free expansion and contraction within a certain range, and will not hinder the rotation of the valve ball 5. Supported by the metal bellows 11, the O-ring sealing gasket 13 always maintains good sealing contact with the valve ball 5 to prevent external impurities from entering the sealing surface.

[0026] As the valve ball 5 rotates, the through hole on the valve ball 5 gradually aligns with the inlet and outlet channels of the valve body 1, and water begins to flow through the through hole of the valve ball 5 to achieve the conduction of the valve. During the conduction process, due to the synergistic effect of the sealing structure composed of the sealing ring 7, the elastic ring 9, the metal bellows 11 and the O-ring sealing gasket 13, it is ensured that the sealing performance of the valve remains good when water flows through, and there is no leakage.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball regulating valve capable of cyclically controlling water flow interruption, comprising a valve body (1), a valve ball (5) and a main body assembly, characterized in that: The left and right sides of the inner wall of the valve body (1) are provided with trapezoidal ring grooves (6) that match the outer wall of the valve ball (5), the interiors of the two trapezoidal ring grooves (6) are fixedly connected with sealing rings (7), the inner sides of the two sealing rings (7) are provided with grooves (8), the interiors of the two grooves (8) are fixedly connected with elastic rings (9) that match the outer wall of the valve ball (5), the inner sides of the two elastic rings (9) are provided with metal bellows (11), the opposite ends of the two metal bellows (11) are provided with arc grooves (12), and the interiors of the two arc grooves (12) are fixedly connected with O-type sealing gaskets (13) that match the outer wall of the valve ball (5).

2. A ball regulating valve capable of cyclically controlling water flow interruption according to claim 1, characterized in that: Mounting rings (10) are installed at opposite ends of the two metal bellows (11), and the two mounting rings (10) are respectively installed at the corresponding output end and input end of the valve body (1).

3. The ball regulating valve capable of cyclically controlling water flow interruption according to claim 1, characterized in that: The main body assembly comprises an upper valve stem (3) connected to the valve body (1), a control unit (4) is installed at the upper end of the upper valve stem (3), and a valve ball (5) is installed at the lower end of the upper valve stem (3).

4. A ball regulating valve capable of cyclically controlling water flow interruption according to claim 3, characterized in that: A flexible coupling (14) is installed at the lower end of the upper valve stem (3), and the lower end of the flexible coupling (14) is installed on the valve ball (5).

5. The ball regulating valve capable of cyclically controlling water flow interruption according to claim 2, characterized in that: The two sealing rings (7) are made of polytetrafluoroethylene material, the two elastic rings (9) and the O-type sealing gasket (13) are made of fluororubber material, and the two mounting rings (10) and the metal bellows (11) are made of 304 stainless steel material.

6. A ball regulating valve capable of cyclically controlling water flow interruption according to claim 5, characterized in that: The outer sides of the two mounting rings (10) are both provided with interface connection pads (15), and the two interface connection pads (15) are both fixedly connected to the valve body (1).

7. The ball regulating valve capable of cyclically controlling water flow interruption according to claim 1, characterized in that: The output end and the input end of the valve body (1) are both installed with connecting flanges (2), and the two connecting flanges (2) are both made of 316 stainless steel.

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