High-pressure-resistant ball valve

Abstract

The utility model provides a high-pressure-resistant ball valve which comprises a main body valve seat, a rubber pipe is arranged in the main body valve seat, a positioning block is arranged in the main body valve seat, and one end of the rubber pipe is in contact with the positioning block. A valve core is arranged in the main body valve seat, is positioned in the rubber pipe and is in contact with the inner wall of the rubber pipe; two groups of clamping grooves are formed in the valve core, two groups of sealing rings are arranged in the main body valve seat, the sealing rings are clamped in the clamping grooves, and the sealing rings are in contact with the rubber pipe; a control assembly is arranged above the main valve seat, and one end of the control assembly is connected with the valve element. According to the ball valve, the rubber pipe is arranged in the main body valve seat and located between the valve element and the main body valve seat, the valve element is in close contact with the rubber pipe, collision between the valve element and the main body valve seat during liquid impact can be avoided, the risk of damage to the valve element is reduced, and the service life of the ball valve is prolonged. Meanwhile, the two sets of clamping grooves are formed in the valve element, the sealing rings are arranged in the open grooves, and the sealing rings make contact with the rubber pipe, so that the leakage risk can be reduced easily.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and more specifically, particularly relates to a high-pressure resistant ball valve. Background Art

[0002] A ball valve is a commonly used fluid control valve that controls the flow of fluid by rotating the ball. It can quickly open and close the pipeline, is easy to operate, and can effectively prevent fluid leakage. It is usually used for flow control and cutting off fluid pipelines, and is widely used in the petroleum and chemical industries. However, when a traditional ball valve is used in a high-pressure pipeline, it will easily cause the valve core to shake significantly when it is subjected to strong impact from the liquid. Long-term use will cause certain damage to the valve core, resulting in an increased risk of leakage or damage to the ball valve, which will have an adverse effect on the normal transportation of the pipeline. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-pressure resistant ball valve to solve the technical problem in the prior art that when a traditional ball valve is used in a high-pressure environment, it is easily damaged by the impact of liquid, resulting in an increased risk of leakage and damage to the ball valve.

[0004] According to a preferred embodiment of the present invention, the purpose and effect are achieved by the following specific technical means:

[0005] A high-pressure resistant ball valve comprises a main valve seat, a rubber tube is arranged in the main valve seat, a positioning block is arranged in the main valve seat, and one end of the rubber tube contacts the positioning block; a valve core is arranged in the main valve seat, located in the rubber tube and in contact with the inner wall of the rubber tube; two groups of grooves are opened on the valve core, two groups of sealing rings are arranged in the main valve seat, the sealing rings are clamped in the grooves, and the sealing rings contact the rubber tube; a control component is arranged above the main valve seat, and one end of the control component is connected to the valve core.

[0006] According to a preferred embodiment, the control component includes a valve stem, the main valve seat and the rubber tube are both provided with connecting grooves, the valve core is provided with a limiting groove, and one end of the valve stem passes through the connecting groove and is clamped in the limiting groove.

[0007] According to a preferred embodiment, the control component also includes a handle, a fixing groove is opened on the main valve seat, a gasket is arranged in the fixing groove, and the gasket is sleeved on the valve stem; a fixing nut is arranged on the valve stem, the handle is sleeved on the valve stem, and the handle is located between the gasket and the fixing nut.

[0008] According to a preferred embodiment, two groups of limit blocks are arranged on the main valve seat, and a limit clamping block is arranged on the handle. The limit clamping block is located between the two groups of limit blocks, and the limit clamping block can contact the two groups of limit blocks respectively.

[0009] According to a preferred embodiment, a plurality of groups of positioning blocks are arranged on the handle, and positioning slots are formed on the valve stem corresponding to the positioning blocks, and the positioning blocks are arranged in the positioning slots.

[0010] According to a preferred embodiment, the main valve seat and the valve core are made of alloy steel.

[0011] According to a preferred embodiment, connecting pipes are clamped at both ends of the main valve seat, a fixed valve is sleeved at the interface between the main valve seat and the connecting pipe, and the main valve seat and the connecting pipe are detachably connected; a sealing gasket is arranged between the main valve seat and the connecting pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. A rubber tube is arranged in the main valve seat, and the valve core arranged in the main valve seat is clamped in the rubber tube and in close contact with the rubber tube, so that the valve core and the main valve seat are more closely connected through the rubber tube, which can also effectively support and protect the valve core, and can prevent the collision between the valve core and the main valve seat when the liquid impacts, thereby reducing the risk of damage to the valve core and extending the service life of the ball valve.

[0014] 2. Two sets of slots are provided on the valve core, and sealing rings are provided in the slots, which can effectively improve the sealing performance of the ball valve and prevent leakage. The sealing ring is in contact with the rubber tube, which helps to reduce the risk of leakage. At the same time, the main valve seat and valve core are made of alloy steel, which makes the main valve seat and valve core have high strength and hardness, so that they can withstand the huge pressure and impact force under high pressure environment, and can resist the long-term erosion and wear of the fluid, ensuring the long-term stable operation of the main valve seat and valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model after assembly.

[0016] Figure 2 It is a schematic diagram of the structure of the utility model after being disassembled.

[0017] Figure 3 yes Figure 2 A partial enlarged view of area a.

[0018] Figure 4 It is a structural diagram of the main valve seat.

[0019] Figure 5It is a structural diagram of the valve core.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 11. Main valve seat; 12. Positioning block; 13. Connecting groove; 14. Fixing groove; 15. Gasket; 16. Limiting block; 21. Rubber tube; 22. Sealing ring; 23. Connecting pipe; 24. Fixing valve; 25. Sealing gasket; 31. Valve core; 32. Slot; 33. Limiting groove; 41. Valve stem; 42. Handle; 43. Limiting block; 44. Positioning block; 45. Positioning slot. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0023] Example:

[0024] like Figure 1 , 2 As shown in Figures 4 and 5, the utility model provides a high-pressure resistant ball valve, including a main valve seat 11, a rubber tube 21 is arranged inside the main valve seat 11, and a positioning block 12 is also arranged inside the main valve seat 11. One end of the rubber tube 21 contacts the positioning block 12, which helps to ensure the stable fixed position of the rubber tube 21. A valve core 31 is arranged inside the main valve seat 11, and the valve core 31 is located inside the rubber tube 21 and contacts the inner wall of the rubber tube 21. It can effectively protect the valve core 31, reduce the collision between the valve core 31 and the main valve seat 11 during liquid impact, reduce the risk of damage to the valve core 31, and extend the service life of the ball valve. Two groups of grooves 32 are provided above the valve core 31, and two groups of sealing rings 22 are arranged in the main valve seat 11. These sealing rings 22 are clamped in the grooves 32 and connected to the rubber tube 21, which can effectively improve the sealing performance of the ball valve and prevent leakage problems. At the same time, a control component is arranged above the main valve seat 11, and one end of the control component is connected to the valve core 31, so as to realize the control of the valve core 31. This makes the ball valve have more stable control ability and operability.

[0025] like Figures 2 to 5As shown, the control component includes a valve stem 41, a connecting groove 13 is provided on the main valve seat 11 and the rubber tube 21, a limiting groove 33 is provided on the valve core 31, and one end of the valve stem 41 passes through the connecting groove 13 and is clamped in the limiting groove 33. The valve stem 41 can accurately limit and control the position of the valve core 31 to achieve control of the ball valve. The control component also includes a handle 42, a fixing groove 14 is provided on the main valve seat 11, a gasket 15 is provided in the fixing groove 14, and the gasket 15 is sleeved on the valve stem 41. In addition, a fixing nut is provided on the valve stem 41, and the handle 42 is sleeved on the valve stem 41, and the handle 42 is located between the gasket 15 and the fixing nut. Through this design, the structure between the handle 42 and the valve stem 41 is compact, and the operating force can be effectively transmitted to achieve flexible operation of the ball valve.

[0026] Two groups of limit blocks 16 are arranged on the main valve seat 11, and the limit blocks 16 are used to limit the movement range of the valve core 31 to ensure that the ball valve can accurately control the on and off of the fluid during operation. At the same time, a limit block 43 is arranged on the handle 42, and these limit blocks 43 are located between the two groups of limit blocks 16 and can contact the two groups of limit blocks 16 respectively. Through the cooperation of the limit blocks 43 and the limit blocks 16, it can be ensured that the valve core 31 will not exceed the specified range during operation, thereby avoiding damage to the ball valve or affecting its normal operation. A plurality of positioning blocks 44 are also arranged on the handle 42, and the function of the positioning blocks 44 is to ensure that the position of the valve stem 41 is accurately positioned to ensure the stability and reliability of the ball valve. The valve stem 41 is correspondingly provided with a positioning slot 45, and the positioning block 44 can be clamped in the positioning slot 45, which can make the connection between the valve stem 41 and the handle 42 more firm, ensuring the accuracy and stability during operation.

[0027] like Figure 2 As shown, the main valve seat 11 and the valve core 31 are made of alloy steel, so that the main valve seat 11 and the valve core 31 have high strength and hardness, so that they can withstand the huge pressure and impact force under high pressure environment, and can resist the long-term erosion and wear of the fluid, ensuring the long-term stable operation of the main valve seat 11 and the valve core 31. Connecting pipes 23 are clamped at both ends of the main valve seat 11, and a fixed valve 24 is sleeved at the interface between the connecting pipe 23 and the main valve seat 11, so that the connecting pipe 23 and the main valve seat 11 can be disassembled and connected, which is convenient for the installation and maintenance of the ball valve. A sealing gasket 25 is arranged between the main valve seat 11 and the connecting pipe 23. The sealing gasket 25 can effectively prevent fluid leakage, ensure the sealing performance of the ball valve, and ensure that the ball valve will not leak during operation, thereby improving the reliability and safety of the ball valve.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When using the ball valve, first ensure that the ball valve is in a closed state, and then operate the valve stem 41 through the handle 42 on the control assembly, so that the valve core 31 moves inside the rubber tube 21, thereby controlling the on-off of the fluid. The structure between the handle 42 and the valve stem 41 is compact, and the operating force can be easily transmitted to achieve flexible operation of the ball valve. During operation, the setting of the limit block 16 and the limit clamp block 43 plays a key role, limiting the moving range of the valve core 31, ensuring that the ball valve can accurately control the on-off of the fluid during operation, avoiding damage to the ball valve or affecting its normal operation. At the same time, the positioning clamp block 44 ensures the accurate positioning of the valve stem 41, ensuring the stability and reliability of the ball valve. The valve core 31 effectively reduces the collision between the valve core 31 and the main valve seat 11 during liquid impact, reduces the risk of damage to the valve core 31, and extends the service life of the ball valve. Since the main valve seat 11 and the valve core 31 are made of alloy steel, they have high strength and hardness, can withstand the huge pressure and impact force under high pressure environment, and ensure that the ball valve can work stably for a long time. The disassembly connection design makes the installation and maintenance of the ball valve more convenient, and the provision of the sealing gasket 25 effectively prevents fluid leakage, thereby improving the reliability and safety of the ball valve.

[0030] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. High pressure resistant ball valve, characterized by: The invention comprises a main valve seat (11), wherein a rubber tube (21) is arranged in the main valve seat (11), wherein a positioning block (12) is arranged in the main valve seat (11), and one end of the rubber tube (21) contacts the positioning block (12); wherein a valve core (31) is arranged in the main valve seat (11), located in the rubber tube (21) and in contact with the inner wall of the rubber tube (21); wherein two groups of grooves (32) are opened on the valve core (31), wherein two groups of sealing rings (22) are arranged in the main valve seat (11), wherein the sealing rings (22) are clamped in the grooves (32), and wherein the sealing rings (22) contact the rubber tube (21); and wherein a control component is arranged above the main valve seat (11), wherein one end of the control component is connected to the valve core (31).

2. The high pressure resistant ball valve according to claim 1, characterized in that: The control component comprises a valve stem (41), a connecting groove (13) is provided on the main valve seat (11) and the rubber tube (21), a limiting groove (33) is provided on the valve core (31), and one end of the valve stem (41) passes through the connecting groove (13) and is clamped in the limiting groove (33).

3. The high pressure resistant ball valve according to claim 2, characterized in that: The control assembly also includes a handle (42); a fixing groove (14) is provided on the main valve seat (11); a gasket (15) is arranged in the fixing groove (14); the gasket (15) is sleeved on the valve stem (41); a fixing nut is provided on the valve stem (41); the handle (42) is sleeved on the valve stem (41); the handle (42) is located between the gasket (15) and the fixing nut.

4. The high pressure resistant ball valve according to claim 3, characterized in that: Two groups of limit blocks (16) are arranged on the main valve seat (11), and a limit block (43) is arranged on the handle (42). The limit block (43) is located between the two groups of limit blocks (16), and the limit block (43) can contact the two groups of limit blocks (16) respectively.

5. The high pressure resistant ball valve according to claim 4, characterized in that: The handle (42) is provided with a plurality of groups of positioning blocks (44), the valve stem (41) is provided with positioning slots (45) corresponding to the positioning blocks (44), and the positioning blocks (44) are locked in the positioning slots (45).

6. The high pressure resistant ball valve according to claim 1, characterized in that: The main valve seat (11) and the valve core (31) are made of alloy steel.

7. The high pressure resistant ball valve according to claim 6, characterized in that: Connecting pipes (23) are clamped at both ends of the main valve seat (11); a fixed valve (24) is sleeved at the interface between the main valve seat (11) and the connecting pipe (23); the main valve seat (11) and the connecting pipe (23) are detachably connected; and a sealing gasket (25) is provided between the main valve seat (11) and the connecting pipe (23).

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