Wear-resistant flanged ball valve

Abstract

The utility model relates to the field of ball valves, in particular to a wear-resistant flange ball valve which comprises a valve body. And the flange plates are installed on the two sides of the valve body and used for being connected with the valve body, butt joint blocks are fixedly installed on one sides of the flange plates, an installation base is fixedly installed above the valve body, and a connecting rod is movably connected into the installation base. According to the wear-resistant flanged ball valve, due to the arrangement of the valve body, the ball valve main body, the sleeve frame and the sealing ring, the situation that the ball valve main body is directly contacted with the interior of the valve body when rotating in the valve body, and consequently the ball valve main body is abraded is avoided, and due to the fact that the ball valve main body is made of hard alloy, the wear-resistant flanged ball valve not only has wear resistance, but also has corrosion resistance; in the rotating process of the ball valve body, the sleeve frame and the sealing ring are arranged in the valve body, so that the sealing ring is attached to the periphery of the ball valve body, the ball valve body is prevented from directly rubbing the interior of the valve body, abrasion is avoided, and meanwhile the sealing performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of ball valves, and particularly relates to a wear-resistant flange ball valve. Background Technique

[0002] Ball valves and gate valves belong to the same type of valves. The difference is that its closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve opening and closing. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Among them, there are flange ball valves, which are assembled and connected in a flange form.

[0003] After retrieval, a utility model flange ball valve with the publication number of CN216407793U includes an opening provided at the top of the valve body, and a connecting rod is installed at the opening. The top of the connecting rod is connected to a valve stem. The outside of the valve stem is sleeved with a rotating handle, and anti-slip textures are provided on the outside of the rotating handle. One end of the rotating handle is provided with a connecting hole, and the connecting hole is connected to the valve stem. One side of the bottom of the rotating handle is installed with an adjusting block, and a chute is provided on one side of the top of the adjusting block, and the chute is semicircular. A limiting rod is slidably installed inside the chute, and one end of the limiting rod is connected to the bottom of the rotating handle. Card slots are provided on both sides of the bottom of the limiting rod, and installation slots are provided on both sides of the inside of the adjusting block close to the chute. This new type of flange ball valve has a simple and reasonable structure, novel design, simple and convenient operation, can effectively limit the handle, prevent the leakage of the medium, and can facilitate the installation of the flange and the valve body, and has high practical value.

[0004] In the existing flange ball valve in the above patent, a sphere is used as the opening and closing part, and the opening and closing of the valve are realized by a 90-degree rotation action. When the existing ball valve rotates, it directly contacts the valve body. Long-term contact is likely to cause wear on the outside of the ball valve, thus affecting the use effect. In the flange ball valve in the above comparative case, the ball valve also contacts the inside of the valve body during rotation, resulting in wear on the inside of the ball valve and the valve body, which not only affects the service life but also causes leakage.

[0005] Therefore, it is very necessary to invent a wear-resistant flange ball valve to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a wear-resistant flange ball valve. Since the material of the ball valve body itself is cemented carbide, it not only has wear resistance but also corrosion resistance, thus improving the wear resistance of the ball valve body itself. When the ball valve body rotates, through the setting of the sleeve and the sealing ring inside the valve body, the sealing ring is attached around the ball valve body, avoiding the direct friction of the ball valve body against the inside of the valve body. This not only avoids wear but also enhances the sealing performance, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: a wear-resistant flange ball valve, including a valve body;

[0008] Flange plates, installed on both sides of the valve body for connecting the valve body. A docking block is fixedly installed on one side of each flange plate. An installation seat is fixedly installed above the valve body. A connecting rod is movably connected inside the installation seat. A handle is fixedly installed at the upper end of the connecting rod;

[0009] A limiting mechanism, arranged inside the installation seat for limiting the handle; a ball valve body is arranged inside the valve body. Sleeve frames are arranged on both sides inside the valve body. A sealing ring is arranged on one side of the sleeve frame.

[0010] Preferably, clamping grooves are formed on the upper and lower inner surfaces of the flange plate. A clamping block is movably connected inside the clamping groove. A filter screen is fixedly installed on one side of the clamping block.

[0011] Preferably, the limiting mechanism includes a connecting block, a limiting rod, a limiting groove, a limiting block, a spring, and a transmission rod. The connecting block is fixed at the lower end of the connecting rod. Limiting rods are fixedly installed above the connecting block. A limiting groove is formed on the lower surface of the connecting block. A limiting block is movably connected inside the limiting groove. A transmission rod is fixedly installed at the lower end of the limiting block.

[0012] Preferably, limiting holes are formed on the inner surface of the installation seat. The limiting rods above the connecting block are movably clamped with the limiting holes inside the installation seat.

[0013] Preferably, a spring is arranged between the inside of the installation seat and the lower part of the connecting block. The limiting groove formed on the lower part of the connecting block matches the limiting block fixedly installed at the upper end of the transmission rod. The limiting block is square.

[0014] Preferably, the material of the ball valve body is cemented carbide. The sealing ring abuts against the ball valve body.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. Through the arrangement of the valve body, the ball valve body, the sleeve frame, and the sealing ring, it is avoided that the ball valve body directly contacts the inside of the valve body when rotating inside the valve body, thus causing wear of the ball valve body. Since the material of the ball valve body itself is cemented carbide, it not only has wear resistance but also corrosion resistance, thereby improving the wear resistance of the ball valve body itself. When the ball valve body rotates, through the arrangement of the sleeve frame and the sealing ring inside the valve body, the sealing ring is attached around the ball valve body, avoiding the ball valve body from directly rubbing against the inside of the valve body. This not only avoids wear but also enhances the sealing performance;

[0017] 2. Through the settings of the mounting base, connecting rod, handle, limiting mechanism, transmission rod and ball valve body, it is avoided that other personnel accidentally rotate the ball valve body, causing the medium to open or close. By pressing the handle to drive the connecting block to move downward, the limiting groove below the connecting block is sleeved outside the limiting block above the transmission rod. Then, rotating the handle drives the transmission rod and the ball valve body to rotate. After opening or closing the ball valve body, release the handle, and use the spring rebound below the connecting block to push the connecting block and the connecting rod to expand and contract, so that the limiting rod above the connecting block is inserted into the limiting hole inside the mounting base, thus locking the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 Schematic diagram of the internal structure of the valve body of the present utility model;

[0021] Figure 3 Schematic diagram of the mounting base structure of the present utility model;

[0022] Figure 4 Schematic diagram of the limiting mechanism structure of the present utility model;

[0023] Figure 5 Schematic diagram of the ball valve structure of the present utility model.

[0024] Description of the reference numerals in the drawings:

[0025] 1. Valve body; 2. Flange; 3. Docking block; 4. Card slot; 5. Card block; 6. Filter screen; 7. Mounting base; 8. Connecting rod; 9. Handle; 10. Limiting mechanism; 1001. Connecting block; 1002. Limiting rod; 1003. Limiting groove; 1004. Limiting block; 1005. Spring; 1006. Transmission rod; 11. Ball valve body; 12. Sleeve; 13. Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0027] The present utility model provides a wear-resistant flange ball valve as Figures 1-5 shown, including a valve body 1;

[0028] The flange 2 is installed on both sides of the valve body 1 for connecting the valve body 1. A docking block 3 is fixedly installed on one side of each flange 2. An installation seat 7 is fixedly installed above the valve body 1. A connecting rod 8 is movably connected inside the installation seat 7. A handle 9 is fixedly installed at the upper end of the connecting rod 8;

[0029] The limiting mechanism 10 is arranged inside the installation seat 7 for limiting the handle 9; A ball valve body 11 is arranged inside the valve body 1. Sleeve frames 12 are arranged on both sides inside the valve body 1. A sealing ring 13 is arranged on one side of the sleeve frame 12. Since the ball valve body 11 is made of cemented carbide, it not only has wear resistance but also corrosion resistance, thus improving the wear resistance of the ball valve body 11 itself. When the ball valve body 11 rotates, due to the arrangement of the sleeve frame 12 and the sealing ring 13 inside the valve body 1, the sealing ring 13 is attached around the ball valve body 11, avoiding the direct friction between the ball valve body 11 and the inside of the valve body 1. This not only avoids wear but also enhances the sealing performance.

[0030] As Figure 1 and Figure 2 shown, clamping grooves 4 are formed on the upper and lower inner surfaces of the flange 2. A clamping block 5 is movably connected inside the clamping groove 4. A filter net 6 is fixedly installed on one side of the clamping block 5. By installing the filter net 6 inside the flange 2, impurities in the medium can be filtered out.

[0031] As Figure 2 、 Figure 3 and Figure 4 shown, the limiting mechanism 10 includes a connecting block 1001, a limiting rod 1002, a limiting groove 1003, a limiting block 1004, a spring 1005, and a transmission rod 1006. The connecting block 1001 is fixed at the lower end of the connecting rod 8. Limiting rods 1002 are fixedly installed above the connecting block 1001. A limiting groove 1003 is formed on the lower surface of the connecting block 1001. A limiting block 1004 is movably connected inside the limiting groove 1003. A transmission rod 1006 is fixedly installed at the lower end of the limiting block 1004. By pressing the handle 9 to drive the connecting block 1001 to move downward, the limiting groove 1003 below the connecting block 1001 is sleeved outside the limiting block 1004 above the transmission rod 1006. Then, rotate the handle 9 to drive the transmission rod 1006 and the ball valve body 11 to rotate. After opening or closing the ball valve body 11, release the handle 9. The spring 1005 below the connecting block 1001 rebounds to push the connecting block 1001 and the connecting rod 8 to expand and contract, so that the limiting rod 1002 above the connecting block 1001 is inserted into the limiting hole inside the installation seat 7, thus locking the handle 9.

[0032] As Figure 3 and Figure 4As shown, limiting holes are provided on the inner surfaces of the mounting base 7. The limiting rod 1002 above the connecting block 1001 is movably clamped with the limiting holes inside the mounting base 7. By inserting the limiting rod 1002 above the connecting block 1001 into the mounting base 7, the handle 9 can be limited to prevent other personnel from rotating the handle 9.

[0033] As Figure 3 and Figure 4 As shown, a spring 1005 is provided between the interior of the mounting base 7 and the lower part of the connecting block 1001. The limiting groove 1003 opened at the lower part of the connecting block 1001 matches with the limiting block 1004 fixedly installed at the upper end of the transmission rod 1006. The limiting block 1004 is square-shaped. The limiting groove 1003 at the lower part of the connecting block 1001 is sleeved outside the limiting block 1004 above the transmission rod 1006 to complete the docking, so that the transmission rod 1006 and the ball valve body 11 can be rotated.

[0034] As Figure 2 and Figure 5 As shown, the material of the ball valve body 11 is cemented carbide. The sealing ring 13 abuts against the ball valve body 11. Through the sleeve 12 inside the valve body 1 and the sealing ring 13, the sealing ring 13 is attached around the ball valve body 11, preventing the ball valve body 11 from directly rubbing against the inside of the valve body 1. This not only avoids wear but also enhances the sealing performance.

[0035] The working principle of this utility model: First, the clamping blocks 5 on the upper and lower sides of the filter screen 6 are clamped in the clamping grooves 4 inside the flange 2. Then, the flanges 2 on both sides of the valve body 1 are connected to the external pipelines. The multiple docking blocks 3 on one side of the flange 2 facilitate the docking and installation between them. When the installation is completed and it is necessary to start transporting the medium, first press the handle 9 to drive the connecting block 1001 to move downward, so that the limiting groove 1003 at the lower part of the connecting block 1001 is sleeved outside the limiting block 1004 above the transmission rod 1006. Then rotate the handle 9 to drive the transmission rod 1006 and the ball valve body 11 to rotate. During the rotation of the ball valve body 11, through the sleeve 12 inside the valve body 1 and the sealing ring 13, the sealing ring 13 is attached around the ball valve body 11 and rotates, thus preventing the ball valve body 11 from directly rubbing against the inside of the valve body 1. This not only avoids wear but also enhances the sealing performance. After that, when the ball valve body 11 is opened, release the handle 9. The spring 1005 below the connecting block 1001 rebounds to push the connecting block 1001 and the connecting rod 8 to expand and contract, so that the limiting rod 1002 above the connecting block 1001 is inserted into the limiting hole inside the mounting base 7, thus locking the handle 9. Then, when the medium is transported inside the valve body 1, the impurities in the medium will be intercepted and filtered by the filter screen 6. Just like this, the use process of this wear-resistant flange ball valve is completed.

[0036] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A wear-resistant flange ball valve, characterized by: comprising a valve body (1); Flanges (2) are mounted on both sides of the valve body (1) and are used to connect the valve body (1); a docking block (3) is fixedly mounted on one side of the flange (2); a mounting seat (7) is fixedly mounted above the valve body (1); a connecting rod (8) is movably connected inside the mounting seat (7); a handle (9) is fixedly mounted on the upper end of the connecting rod (8); A limiting mechanism (10) is arranged inside the mounting seat (7) and is used for limiting the handle (9); a ball valve body (11) is arranged inside the valve body (1), sleeve frames (12) are arranged on both sides inside the valve body (1), and a sealing ring (13) is arranged on one side of the sleeve frame (12).

2. A wear-resistant flange ball valve according to claim 1, characterized in that: The upper and lower inner surfaces of the flange (2) are provided with a clamping groove (4), the interior of the clamping groove (4) is movably connected with a clamping block (5), and a filter screen (6) is fixedly mounted on one side of the clamping block (5).

3. A wear-resistant flange ball valve according to claim 1, characterized in that: The limiting mechanism (10) comprises a connecting block (1001), a limiting rod (1002), a limiting groove (1003), a limiting block (1004), a spring (1005), and a transmission rod (1006); the connecting block (1001) is fixed to the lower end of the connecting rod (8); the limiting rod (1002) is fixedly mounted above the connecting block (1001); the limiting groove (1003) is provided on the lower surface of the connecting block (1001); the limiting block (1004) is movably connected to the inside of the limiting groove (1003); and the transmission rod (1006) is fixedly mounted on the lower end of the limiting block (1004).

4. A wear-resistant flange ball valve according to claim 3, characterized in that: The inner surface of the mounting seat (7) is provided with a limiting hole, and the limiting rod (1002) above the connecting block (1001) is movably engaged with the limiting hole inside the mounting seat (7).

5. The wear-resistant flange ball valve according to claim 3, characterized in that: A spring (1005) is arranged inside the mounting seat (7) and below the connecting block (1001); a limiting groove (1003) is provided below the connecting block (1001) to match a limiting block (1004) fixedly mounted on the upper end of the transmission rod (1006); and the limiting block (1004) is arranged in a square shape.

6. The wear-resistant flange ball valve according to claim 1, characterized in that: The ball valve body (11) is made of hard alloy, and the sealing ring (13) is in contact with the ball valve body (11).

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