Wear-resistant and anti-aging ball valve ball

Abstract

This utility model relates to a wear-resistant and anti-aging ball valve body, belonging to the field of ball valve technology. It mainly solves the problems of poor sealing performance, easy displacement and shaking during use, and easy wear and aging under high-demand operating conditions in existing ball valve bodies. The ball body includes a main body with a limiting groove and a limiting protrusion at the top, and a limiting groove at the bottom. A fixed cover plate is installed on the top of the ball valve, and a limiting rod at its bottom extends into the limiting groove at the top of the ball. The two are engaged by the limiting protrusion and the groove on the limiting rod. A mounting base is fixed to the bottom of the ball valve, and its top limiting rod is inserted into the limiting groove at the bottom of the ball. A connecting component is provided inside the limiting rod on the fixed cover plate. Rotating the threaded rod can drive the side arc plate to move radially and insert into the annular groove on the ball. This structure enhances the stability of the ball through upper and lower limiting and lateral locking, improves the sealing performance of the upper and lower sealing gaskets, and enhances the wear resistance and anti-aging performance of the special material layer, thus helping to extend the service life of the ball valve.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a wear-resistant and anti-aging ball valve ball. Background Technology

[0002] Ball valves are widely used in numerous fields, including petroleum, chemical, water treatment, and natural gas, as an important fluid control device in industrial production and daily life. The core component of a ball valve is the ball, whose performance directly affects the valve's sealing performance, stability, and service life.

[0003] Traditional ball valves have several problems during use. Firstly, their sealing performance is not ideal. Due to an unreasonable design of the sealing structure between the ball and the valve seat or poor performance of the sealing material, fluid leakage is easily caused, leading to resource waste, potential environmental pollution, and even safety accidents. Secondly, the ball's stability within the valve is poor. Under long-term exposure to fluid impact and pressure changes, the ball is prone to shaking or shifting, affecting the normal opening and closing and sealing effect of the ball valve, thus shortening its service life.

[0004] Furthermore, with the continuous development of industry, higher requirements have been placed on the operating environment and conditions of ball valves. For example, under harsh conditions such as high temperature, high pressure, and strong corrosion, traditional ball valve ball materials are insufficient to meet the requirements, easily leading to wear and corrosion, resulting in decreased ball valve performance and inability to function properly. Therefore, developing a ball valve ball with excellent sealing performance, high stability, and good wear and aging resistance is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to address several problems existing in the use of traditional ball valve balls in the prior art. Firstly, the sealing performance is not ideal. Due to unreasonable design of the sealing structure between the ball and the valve seat or poor performance of the sealing material, fluid leakage is easily caused, resulting in resource waste, potential environmental pollution, and even safety accidents. Secondly, the stability of the ball within the ball valve is poor. Under long-term fluid impact and pressure changes, the ball is prone to shaking or displacement, affecting the normal opening and closing and sealing effect of the ball valve, and shortening its service life. Furthermore, with the continuous development of industry, higher requirements are placed on the operating environment and conditions of ball valves. For example, under harsh conditions such as high temperature, high pressure, and strong corrosion, traditional ball valve ball materials are insufficient to meet the requirements, easily leading to wear and corrosion, resulting in decreased ball valve performance and inability to function properly. Therefore, this invention proposes a wear-resistant and anti-aging ball valve ball.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The wear-resistant and anti-aging ball valve ball includes a ball body, a second limiting groove at the top and a first limiting groove at the bottom, a limiting protrusion on the inner wall of the second limiting groove, and a threaded groove at the bottom of the limiting groove. A fixed cover plate is fixed to the top of the ball valve, and a second limiting rod is provided at its bottom to cooperate with the second limiting groove. A connecting component is provided inside the second limiting rod. The mounting base is fixed to the bottom of the ball valve, and its top is provided with a first limiting rod that mates with the first limiting groove. The connecting component drives the side arc plate to be radially inserted into the first annular groove, thereby restricting the circumferential displacement of the sphere body.

[0007] In one possible design, the connecting assembly includes a second annular groove formed on the outer wall of the second limiting rod, the groove having a rectangular through hole, and the outer wall of the second limiting rod having a limiting groove that engages with a limiting protrusion, with the first annular groove and the second annular groove corresponding in position.

[0008] In one possible design, the bottom of the rectangular through hole is provided with a tapered groove, the threaded rod passes through the second limiting rod and is threadedly connected to the threaded groove, and a frustum block that mates with the tapered groove is fixed to the outer wall of the threaded rod.

[0009] In one possible design, the bottom of the rectangular through hole is provided with two symmetrical rectangular grooves, and a slider is slidably connected in each rectangular groove. One side of the slider abuts against a rubber pad, and a trapezoidal plate is fixed to the top. The inclined surface of the trapezoidal plate abuts against the frustum block, and the end is fixed to a side arc plate.

[0010] In one possible design, the outer wall of the first limiting rod is fitted with a lower sealing gasket, and the outer wall of the second limiting rod is fitted with an upper sealing gasket, which respectively abut against the bottom and top of the sphere body.

[0011] In one possible design, the sphere body has a fluid passage inside, and a first annular groove is formed between multiple limiting protrusions.

[0012] In one possible design, the fixed cover is bolted to the top of the ball valve, and the mounting seat is screwed into the bottom of the ball valve.

[0013] In one possible design, the main body of the sphere is made of tungsten carbide substrate, and its surface is covered with a boron nitride lubricating layer.

[0014] In this application, during use, the mounting base is screwed in from below the ball valve, so that the lower sealing gasket is pressed against the bottom of the ball body. The first limiting rod is inserted into the first limiting groove, and the fixing cover is inserted into the ball valve from above, so that the second limiting rod enters the second limiting groove. The limiting protrusion and the limiting groove are engaged with each other to ensure the stability of the second limiting rod. At this time, the fixing cover is connected to the top of the ball valve with bolts, and the upper sealing gasket abuts against the top of the ball body to ensure the sealing performance of the ball body. At this point, the threaded rod rotates, causing the frustum block to rotate downwards. The bottom of the threaded rod connects with the threaded groove, thus securing it to the main body of the sphere. Simultaneously, the frustum block moves downwards, pushing the two trapezoidal plates away from each other. The trapezoidal plates cause the side arc plates to move laterally, which in turn causes the slider to move laterally. The rubber pad is compressed, facilitating the slider's reset. At this point, the side arc plates are inserted laterally into the first annular groove, further enhancing the stability of the device. The main body of the sphere is made of tungsten carbide with a boron nitride lubricating layer on the surface, reducing the coefficient of friction.

[0015] Beneficial effects: By setting an upper sealing gasket and a lower sealing gasket, the upper sealing gasket abuts against the top of the ball body during use, and the lower sealing gasket abuts against the bottom of the ball body. This effectively prevents fluid leakage inside the ball valve, ensures the sealing performance of the ball body, and improves the reliability and safety of the ball valve.

[0016] The first limiting rod of the mounting base is inserted into the first limiting groove at the bottom of the ball body, and the second limiting rod of the fixing cover plate enters the second limiting groove at the top of the ball body. The limiting protrusion and the limiting groove are engaged with each other, limiting and fixing the ball body from both the top and bottom directions, thus enhancing the stability of the ball body inside the ball valve.

[0017] The rotating threaded rod drives the frustum block to rotate downwards, pushing the two trapezoidal plates away from each other, thereby causing the side arc plate to insert laterally into the interior of the first annular groove. This further enhances the overall stability of the device, ensuring that the ball valve will not shake or shift during long-term use, thus guaranteeing the normal operation of the ball valve.

[0018] The mounting base is screwed in from below the ball valve, and the fixing cover is inserted into the ball valve from above and connected to the top of the ball valve with bolts. This design makes the installation and disassembly of the ball body relatively simple, facilitates the maintenance and repair of the ball valve, and reduces maintenance costs and time.

[0019] The main body of the ball is made of tungsten carbide, and the surface is a boron nitride lubricating layer. Tungsten carbide has the characteristics of high hardness and high wear resistance, which can effectively resist the scouring and wear of fluids and extend the service life of the ball. The boron nitride lubricating layer can reduce the friction coefficient between the ball and the valve seat, reduce wear, and at the same time, boron nitride also has good chemical stability and anti-aging properties, which can adapt to different working environments and media, thus improving the overall performance of the ball valve. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the wear-resistant and anti-aging ball valve ball proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of the main body of the ball in the wear-resistant and anti-aging ball valve proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the main body of the ball in the wear-resistant and anti-aging ball valve proposed in this utility model from a second perspective. Figure 4 This is an exploded view of the mounting seat and lower sealing gasket in the ball of the wear-resistant and anti-aging ball valve proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the second limiting rod and the fixed cover plate in the ball of the wear-resistant and anti-aging ball valve proposed in this utility model; Figure 6 This is a three-dimensional structural diagram of the second limiting rod and the conical groove in the ball of the wear-resistant and anti-aging ball valve proposed in this utility model; Figure 7 This is an exploded view of the threaded rod and the side arc plate in the ball of the wear-resistant and anti-aging ball valve proposed in this utility model.

[0021] In the diagram: 1. Sphere body; 2. Upper sealing gasket; 3. Fixed cover plate; 4. Lower sealing gasket; 5. Mounting base; 6. First limiting groove; 7. Fluid through hole; 8. First annular groove; 9. Second limiting groove; 10. Limiting protrusion; 11. Threaded groove; 12. First limiting rod; 13. Second limiting rod; 14. Limiting groove; 15. Threaded rod; 16. Side arc plate; 17. Second annular groove; 18. Conical groove; 19. Rectangular groove; 20. Rectangular through hole; 21. Frustum block; 22. Trapezoidal plate; 23. Slider; 24. Rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In one embodiment: Refer to Figure 1-7In the actual production and application of wear-resistant and anti-aging ball valve balls, the first step is to prepare the ball body 1. The ball body 1 uses a tungsten carbide layer as the base material, and a boron nitride lubricating layer is formed on its surface through a special process. This material combination effectively reduces the coefficient of friction between the ball and other components, while also possessing excellent wear resistance and anti-aging properties to meet the needs of various harsh working conditions. On the ball body 1, a second top limiting groove 9 is opened according to design requirements. A threaded groove 11 is opened on the inner wall of the bottom of the second limiting groove 9. Multiple limiting protrusions 10 are fixedly installed on the inner wall of the second limiting groove 9, and a first annular groove 8 is opened in the middle of the multiple limiting protrusions 10. Simultaneously, a fluid passage 7 is opened inside the ball body 1, and a first limiting groove 6 is opened at the bottom.

[0024] Next, a fixing cover plate 3 is fabricated, and a second limiting rod 13 is fixedly installed at the bottom of the fixing cover plate 3. A second annular groove 17 is formed on the second limiting rod 13, and a rectangular through hole 20 is formed inside the second annular groove 17. A vertical hole with the same through rectangular through hole 20 is formed inside the second limiting rod 13 and the fixing cover plate 3. Multiple limiting grooves 14 are formed on the outer wall of the second limiting rod 13 to ensure that the position and size of the limiting grooves 14 match the limiting protrusions 10 on the inner wall of the second limiting groove 9, so that the two can be engaged with each other, and the positions of the first annular groove 8 and the second annular groove 17 correspond to each other for use.

[0025] Next, prepare the mounting base 5 and fix the first limiting rod 12 on the top of the mounting base 5. At the same time, prepare the lower sealing gasket 4 and the upper sealing gasket 2. Place the lower sealing gasket 4 on the outer wall of the first limiting rod 12 and place the upper sealing gasket 2 on the outer wall of the second limiting rod 13.

[0026] When installing the ball valve ball, screw the mounting seat 5 into the ball valve from below, ensuring the lower sealing gasket 4 is tightly pressed against the bottom of the ball body 1. The first limiting rod 12 is accurately inserted into the first limiting groove 6, achieving initial positioning of the bottom of the ball body 1. Then, insert the fixing cover plate 3 into the ball valve from above, allowing the second limiting rod 13 to enter the second limiting groove 9. At this point, the limiting protrusion 10 and the limiting groove 14 engage, effectively ensuring the stability of the second limiting rod 13 within the second limiting groove 9 and preventing it from shaking. Afterward, securely connect the fixing cover plate 3 to the top of the ball valve with bolts. The upper sealing gasket 2 then tightly contacts the top of the ball body 1, forming a good sealing structure, effectively preventing fluid leakage inside the ball valve and ensuring the sealing performance of the ball body 1.

[0027] After completing the above installation, further fixing operations are performed on the connecting components. Rotating the threaded rod 15, since the threaded rod 15 is threadedly connected to the vertical hole, causes the frustum block 21, which is fixedly sleeved on its outer wall, to rotate and move downwards. The bottom of the threaded rod 15 gradually connects with the threaded groove 11, achieving a stable connection with the spherical body 1. As the frustum block 21 moves downwards, it engages with the conical groove 18 on the inner wall of the bottom of the rectangular through hole 20, pushing the two trapezoidal plates 22 away from each other. The trapezoidal plates 22 cause the side arc-shaped plate 16, fixedly installed at one end, to move laterally, and the side arc-shaped plate 16, in turn, causes the slider 23, fixedly installed at its bottom, to move laterally within the rectangular groove 19. The rubber pad 24, fixedly installed on one side inner wall of the rectangular groove 19, is compressed; when reset is required, the elasticity of the rubber pad 24 facilitates the reset of the slider 23. As the side arc plate 16 moves laterally, it eventually inserts laterally into the interior of the first annular groove 8, further enhancing the stability of the entire device. This ensures that the ball body 1 will not shake or shift due to long-term fluid impact and pressure changes within the ball valve, guaranteeing the normal opening and closing and sealing effect of the ball valve and effectively extending its service life. Through the above series of steps, the installation and stable operation of the wear-resistant and anti-aging ball valve ball are achieved, solving the problems of unsatisfactory sealing performance and poor stability of traditional ball valve balls.

[0028] This application can be used in the field of ball valves, or in other fields applicable to this application.

[0029] In another embodiment: Reference Figure 1-7The wear-resistant and anti-aging ball valve ball is used in the ball valve field. After the above installation is completed, the connecting components are further fixed. Rotate the threaded rod 15. Since the threaded rod 15 is threadedly connected to the vertical hole, during the rotation, the threaded rod 15 drives the truncated cone block 21 fixedly sleeved on its outer wall to rotate and move downward. The bottom of the threaded rod 15 gradually connects with the threaded groove 11, realizing a stable connection with the ball body 1. During the downward movement of the truncated cone block 21, it cooperates with the conical groove 18 opened in the inner wall of the bottom of the rectangular through hole 20, pushing the two trapezoidal plates 22 away from each other. The trapezoidal plate 22 drives the side arc plate 16 fixedly installed at one end to move laterally. The side arc plate 16 then drives the slider 23 fixedly installed at its bottom to move laterally in the rectangular groove 19. The rubber pad 24 fixedly installed on one side inner wall of the rectangular groove 19 is squeezed. When it is necessary to reset, the elasticity of the rubber pad 24 can facilitate the reset of the slider 23. As the side arc plate 16 moves laterally, it eventually inserts laterally into the interior of the first annular groove 8, further enhancing the stability of the entire device. This ensures that the ball body 1 will not shake or shift due to long-term fluid impact and pressure changes within the ball valve, guaranteeing the normal opening and closing and sealing effect of the ball valve and effectively extending its service life. Through the above series of steps, the installation and stable operation of the wear-resistant and anti-aging ball valve ball are achieved, solving the problems of unsatisfactory sealing performance and poor stability of traditional ball valve balls.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wear resistant and anti-aging ball valve ball, characterized in that, include: The sphere body (1) has a second limiting groove (9) at its top and a first limiting groove (6) at its bottom. The inner wall of the second limiting groove (9) has a limiting protrusion (10), and the bottom of the limiting groove has a threaded groove (11). A fixed cover plate (3) is fixed to the top of the ball valve, and a second limiting rod (13) that cooperates with the second limiting groove (9) is provided at its bottom. A connecting component is provided inside the second limiting rod (13). Mounting base (5) is fixed to the bottom of the ball valve, and its top is provided with a first limiting rod (12) that cooperates with the first limiting groove (6).

2. The wear-resistant and anti-aging ball valve ball according to claim 1, characterized in that: The connecting component includes a second annular groove (17) formed on the outer wall of the second limiting rod (13), which has a rectangular through hole (20) and a limiting groove (14) on the outer wall of the second limiting rod (13). The limiting groove (14) engages with the limiting protrusion (10), and the first annular groove (8) corresponds to the second annular groove (17).

3. The wear-resistant and anti-aging ball valve ball according to claim 2, characterized in that: The rectangular through hole (20) has a tapered groove (18) at the bottom. The threaded rod (15) passes through the second limiting rod (13) and is threadedly connected to the threaded groove (11). The outer wall of the threaded rod (15) is fixed with a frustum block (21) that mates with the tapered groove (18).

4. The wear-resistant and anti-aging ball valve ball according to claim 3, characterized in that: The bottom of the rectangular through hole (20) is provided with two symmetrical rectangular grooves (19), and a slider (23) is slidably connected in each rectangular groove (19). One side of the slider (23) abuts against the rubber pad (24), and the top is fixedly connected to the trapezoidal plate (22). The inclined surface of the trapezoidal plate (22) abuts against the frustum block (21), and the end is fixedly connected to the side arc plate (16).

5. The wear-resistant and anti-aging ball valve ball according to claim 1, characterized in that: The first limiting rod (12) is fitted with a lower sealing gasket (4) on its outer wall, and the second limiting rod (13) is fitted with an upper sealing gasket (2) on its outer wall. The two respectively abut against the bottom and top of the sphere body (1).

6. The wear-resistant and anti-aging ball valve ball according to claim 4, characterized in that: The sphere body (1) has a fluid passage (7) inside, and a first annular groove (8) is formed between multiple limiting protrusions (10).

7. The wear-resistant and anti-aging ball valve ball according to claim 1, characterized in that: The fixed cover plate (3) is connected to the top of the ball valve by bolts, and the mounting seat (5) is screwed into the bottom of the ball valve.

8. The wear-resistant and anti-aging ball valve ball according to claim 1, characterized in that: The main body of the sphere (1) is made of tungsten carbide substrate, and its surface is covered with a boron nitride lubricating layer.

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