A ball valve convenient to disassemble and maintain

Abstract

The utility model provides a ball valve convenient to dismount and maintain relates to valve technical field, including valve housing subassembly, the valve housing subassembly inside is provided with valve element subassembly, both ends all are connected with medium pipeline connecting subassembly of valve housing subassembly, the valve housing subassembly with two group medium pipeline connecting subassembly outside jointly cover joint and be provided with double -end compression unit, be provided with traction expansion unit on double -end compression unit, the utility model discloses two groups of double -end compression unit are twisted in synchronization through traction expansion unit to two groups, further shorten the time required to dismount, to improve the dismounting efficiency, in addition, after relieving two groups of double -end compression unit with the connection of valve housing subassembly, still can push two groups of double -end compression unit away from each other through traction expansion unit, further make double -end compression unit drive two groups of medium pipeline connecting subassembly and two medium pipelines away from, so as to realize the convenient taking down of valve housing subassembly while avoiding the scratch to sealing ring B.

Description

Technical Field

[0001] This disclosure relates to the field of valves, and more particularly to a ball valve that is easy to disassemble and maintain. Background Technology

[0002] A ball valve is a valve that uses a ball with a through hole to rotate around the valve stem to open or close the valve. It can be fully opened or closed by rotating 90°. It is easy and quick to operate, has excellent sealing performance, low flow resistance, and smooth medium flow. It is suitable for water, oil, gas and chemical fluids. It has a simple structure and is easy to maintain. It is widely used in water supply and drainage, gas and petrochemical pipelines.

[0003] Existing ball valve structures are mostly as disclosed in the utility model patent with announcement number CN224214743U. Therefore, when disassembling and repairing the ball valve core, valve stem, and sealing seat, it is first necessary to disconnect the connection between the upper flange of the left and right valve bodies and the medium pipeline, and then disconnect the connection between the left and right valve bodies to facilitate the subsequent disassembly of the ball valve core, valve stem, and two sealing seats. However, in the existing technology, the valve body flange is mostly fixed to the medium pipeline and the left and right valve bodies with bolts and nuts. Therefore, in actual disassembly and repair, multiple nuts need to be removed, which is cumbersome and time-consuming, and has a significant impact on disassembly efficiency.

[0004] In response to the above situation, our company has developed a ball valve with double-end clamping and fixing. In actual disassembly, it is only necessary to tighten the fasteners screwed to both ends of the outer valve body. However, after actual testing, it was found that: First, the fasteners at both ends need to be tightened sequentially, so there is still room for improvement in disassembly efficiency; Second, after the fasteners are detached from both ends of the outer valve body, the valve body is clamped between the two pipes. Direct pulling can easily damage the seals. Therefore, it is necessary to assist personnel to pull the two pipes away from each other to release the clamp, which means that the convenience of the disassembly process needs to be further improved. Summary of the Invention

[0005] This disclosure provides a ball valve that is easy to disassemble and maintain. By using a traction expansion unit to simultaneously tighten two sets of double-end clamping units, the disassembly time required is shortened, thereby improving disassembly efficiency. In addition, after disconnecting the two sets of double-end clamping units from the valve body assembly, the traction expansion unit can push the two sets of double-end clamping units away from each other, thereby causing the double-end clamping units to move away from the two sets of medium pipeline connection assemblies and the two medium pipelines. This allows for easy removal of the valve body assembly while avoiding scratching the sealing ring B. This addresses the problem mentioned in the background art, where the fasteners at both ends also need to be tightened sequentially, and the disassembly efficiency still has room for improvement. Furthermore, after the fasteners are detached from both ends of the outer valve body, the valve body is clamped between the two pipelines. Direct pulling can easily damage the seals, so it is necessary to assist personnel in pulling the two pipelines away from each other to release the clamping, resulting in the need to further improve the convenience of the disassembly process.

[0006] According to one aspect of this disclosure, a ball valve that is easy to disassemble and maintain is provided, including a valve housing assembly, a valve core assembly disposed inside the valve housing assembly, media pipeline connection assemblies connected to both ends of the valve housing assembly, and a double-end clamping unit sleeved on the outside of the valve housing assembly and the two sets of media pipeline connection assemblies, wherein a traction expansion unit is disposed on the double-end clamping unit. The traction expansion unit includes two parallel traction rods. Each of the two traction rods has a limit nut screwed to its outer front end. Each of the two traction rods has a four-sided sliding rod fixedly connected to its rear end. The two four-sided sliding rods are slidably fitted with a C-shaped seat through a linear bearing on their outer sides. A T-shaped handle is rotatably nested in the middle of the back of the C-shaped seat through a ball bearing. An expansion rod located between the two four-sided sliding rods is fixedly connected to the front end of the T-shaped handle.

[0007] According to one aspect of the technical solution of this disclosure, the two quadrangular slide rods are provided with arc-shaped surfaces at the ends near the expansion rod, the top end of the expansion rod, and the bottom end of the expansion rod.

[0008] According to one aspect of the technical solution of this disclosure, the valve housing assembly includes an outer valve body with threads at both ends on the outer side, a threaded sealing groove on the top of the outer valve body, and a sealing seat A, a sealing seat B and an inner valve body that are slidably arranged from left to right inside the outer valve body.

[0009] According to one aspect of the technical solution of this disclosure, the valve core assembly includes a spherical valve core that is tightly fitted between the sealing seat A and the sealing seat B, and the top of the spherical valve core is provided with a drive groove.

[0010] According to one aspect of the technical solution of this disclosure, a drive block is slidably inserted into the inner side of the drive groove in the horizontal direction, and a valve stem is fixedly provided at the top of the drive block, and the valve stem is rotatably disposed inside the outer valve body.

[0011] According to one aspect of the technical solution of this disclosure, a sealing ring A and a clamping nut are sequentially sleeved on the outer side of the valve stem from bottom to top. The sealing ring A is located inside the threaded sealing groove, and the clamping nut is screwed into the threaded sealing groove and clamps the sealing ring A.

[0012] According to one aspect of the technical solution of this disclosure, any group of media pipeline connection assemblies includes a connecting pipe fitted to the end of the outer valve body, with sealing rings B nested at both ends of the connecting pipe, an integrally formed annular flange provided at the outer end of the connecting pipe near the outer valve body, and a connecting flange fixedly provided at the outer end of the connecting pipe away from the outer valve body, the connecting flange being connected to the media pipeline by bolts and nuts.

[0013] According to one aspect of the technical solution of this disclosure, the double-end clamping unit includes two clamping blocks that are respectively slidably sleeved on the outside of adjacent connecting pipes. The two clamping blocks are provided with threaded grooves on the side close to each other. Any one of the annular flanges is located inside the adjacent threaded grooves. The two clamping blocks are respectively screwed to the outer end of the outer valve body through the two threaded grooves.

[0014] According to one aspect of the technical solution of this disclosure, a clearance channel is provided at the bottom front of the clamping block, and a mounting hole communicating with the clearance channel is provided at the top back of the clamping block. Any one of the traction rods is slidably disposed inside the adjacent mounting hole and extends to the inner side of the adjacent clearance channel.

[0015] In the technical solution of this embodiment, the present invention uses a traction expansion unit to simultaneously screw on two sets of double-end clamping units, thereby shortening the disassembly time and improving disassembly efficiency. In addition, after disconnecting the two sets of double-end clamping units from the valve body assembly, the traction expansion unit can also push the two sets of double-end clamping units away from each other, thereby causing the double-end clamping units to drive the two sets of medium pipeline connection assemblies and the two medium pipelines away, so as to facilitate the removal of the valve body assembly while avoiding scratching the sealing ring B. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0017] Figure 1 This is a schematic diagram of the overall structure (after connection with the medium pipeline) according to one embodiment of this disclosure; Figure 2 This is a schematic diagram of the structure of a valve housing assembly according to one embodiment of the present disclosure; Figure 3 This is a schematic diagram of the valve core assembly according to one embodiment of the present disclosure; Figure 4 This is a schematic diagram of the structure of a medium pipeline connection assembly according to one embodiment of the present disclosure; Figure 5 This is a schematic diagram of the structure of a double-ended clamping unit according to one embodiment of the present disclosure; Figure 6 This is a schematic diagram of the structure of a traction expansion unit according to one embodiment of the present disclosure.

[0018] Figure label: 1. Valve housing assembly; 11. Outer valve body; 12. Threaded sealing groove; 13. Sealing seat A; 14. Sealing seat B; 15. Inner valve body; 2. Valve core assembly; 21. Ball valve core; 22. Drive groove; 23. Drive block; 24. Valve stem; 25. Sealing ring A; 26. Compression nut; 3. Medium pipeline connection assembly; 31. Connecting pipe; 32. Annular flange; 33. Connecting flange; 4. Double-end clamping unit; 41. Compression block; 42. Threaded groove; 43. Clearance channel; 44. Mounting hole; 5. Traction expansion unit; 51. Traction rod; 52. Limit nut; 53. Four-sided slide bar; 54. C-shaped seat; 55. T-shaped handle; 56. Expansion rod. Detailed Implementation

[0019] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0020] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0022] This invention provides, for example Figures 1-6 The ball valve shown is easy to disassemble and maintain. It includes a valve body assembly 1, a valve core assembly 2 is provided inside the valve body assembly 1, and medium pipeline connection assemblies 3 are connected to both ends of the valve body assembly 1. A double-end clamping unit 4 is sleeved on the outside of the valve body assembly 1 and the two sets of medium pipeline connection assemblies 3. A traction expansion unit 5 is provided on the double-end clamping unit 4.

[0023] like Figure 2 and Figure 3 As shown, the valve housing assembly 1 includes an outer valve body 11 with threads at both ends on the outside. A threaded sealing groove 12 is provided on the top of the outer valve body 11. A sealing seat A13, a sealing seat B14 and an inner valve body 15 are slidably arranged from left to right inside the outer valve body 11.

[0024] like Figure 3As shown, the valve core assembly 2 includes a spherical valve core 21 that fits tightly between the sealing seat A13 and the sealing seat B14. The top of the spherical valve core 21 has a drive groove 22. A drive block 23 is slidably inserted into the inner side of the drive groove 22 in the horizontal direction. A valve stem 24 is fixedly installed at the top of the drive block 23. The valve stem 24 is rotatably installed inside the outer valve body 11. A sealing ring A25 and a clamping nut 26 are sequentially sleeved on the outer side of the valve stem 24 from bottom to top. The sealing ring A25 is located inside the threaded sealing groove 12. The clamping nut 26 is screwed into the threaded sealing groove 12 and clamps the sealing ring A25. A handle (not shown) is also fixedly installed at the top of the valve stem 24.

[0025] By setting up the above structure, during product assembly, the sealing seat A13 is first placed inside the left side of the outer valve body 11, then the valve stem 24 is inserted upwards from inside the outer valve body 11, then the sealing ring A25 is fitted onto the outside of the valve stem 24 and placed inside the threaded sealing groove 12, then the clamping nut 26 is tightened so that the clamping nut 26 presses the sealing ring A25 into the threaded sealing groove 12, the spherical valve core 21 is placed inside the outer valve body 11, the drive block 23 is inserted into the drive groove 22, and then the sealing seat is placed in sequence. B14 and the inner valve body 15 are connected by attaching two connecting pipes 31 to both ends of the outer valve body 11. At this time, the right connecting pipe 31 limits the inner valve body 15, and the inner valve body 15 limits the sealing seat B14, thereby clamping the ball valve core 21 between the sealing seat A13 and the sealing seat B14. Rotate the two clamping blocks 41 so that the two clamping blocks 41 are screwed to both ends of the outer valve body 11. At this time, the two clamping blocks 41 limit the two connecting pipes 31 through the two annular flanges 32, thereby realizing the assembly.

[0026] In actual use, the valve stem 24 can be rotated by the handle, which in turn causes the valve stem 24 to drive the ball valve core 21 to rotate inside the outer valve body 11 via the drive block 23. When the channel inside the ball valve core 21 is collinear with the channels inside the outer valve body 11, sealing seat A13, sealing seat B14 and the inner valve body 15, the medium can pass through. When the channel inside the ball valve core 21 is perpendicular to the channels inside the outer valve body 11, sealing seat A13, sealing seat B14 and the inner valve body 15, the medium cannot pass through.

[0027] like Figure 4 As shown, any set of media pipeline connection components 3 includes a connecting pipe 31 that fits against the end of the outer valve body 11. Both ends of the connecting pipe 31 are nested with sealing rings B (not shown). The outer end of the connecting pipe 31 near the outer valve body 11 is provided with an integrally formed annular flange 32. The outer end of the connecting pipe 31 away from the outer valve body 11 is fixedly provided with a connecting flange 33. The connecting flange 33 is connected to the media pipeline by bolts and nuts.

[0028] By setting up the above structure, the product can be placed between two medium pipelines during installation, so that the two connecting pipes 31 are aligned with the two medium pipelines respectively. Finally, the connecting flange 33 is fixed to the adjacent medium pipeline using bolts and nuts, thereby realizing the installation.

[0029] like Figure 5 As shown, the double-end clamping unit 4 includes two clamping blocks 41 that are slidably sleeved on the outside of adjacent connecting pipes 31. Each clamping block 41 has a threaded groove 42 on the side closest to each other. Any one of the annular flanges 32 is located inside the adjacent threaded groove 42. The two clamping blocks 41 are screwed to the outer end of the outer valve body 11 through the two threaded grooves 42. An avoidance channel 43 is provided at the bottom of the front side of the clamping block 41, and an installation hole 44 communicating with the avoidance channel 43 is provided at the top of the back side of the clamping block 41.

[0030] By setting up the above structure, the connecting pipe 31 can be pressed against the end of the outer valve body 11 by the clamping block 41, so as to realize the connection between the outer valve body 11 and the connecting pipe 31. During subsequent disassembly and maintenance, only the valve shell assembly 1 and the valve core assembly 2 usually need to be disassembled and maintained. Therefore, the medium pipeline connecting assembly 3, the double-end clamping unit 4 and the traction expansion unit 5, which do not need to be maintained, do not need to be disassembled.

[0031] like Figure 6 As shown, the traction expansion unit 5 includes two parallel traction rods 51. Each traction rod 51 is slidably disposed inside an adjacent mounting hole 44 and extends to the inner side of an adjacent clearance channel 43. Limit nuts 52 are screwed to the outer front ends of both traction rods 51. Four-sided sliding rods 53 are fixedly connected to the rear ends of both traction rods 51. C-shaped seats 54 are slidably sleeved on the outer sides of the two four-sided sliding rods 53 through linear bearings. A T-shaped handle 55 is rotatably nested in the middle of the back of the C-shaped seat 54 through a ball bearing. An expansion rod 56 located between the two four-sided sliding rods 53 is fixedly connected to the front end of the T-shaped handle 55. Arc-shaped surfaces are provided at the ends of the two four-sided sliding rods 53 near the expansion rod 56, at the top end of the expansion rod 56, and at the bottom end of the expansion rod 56. The arc-shaped surfaces allow the expansion rod 56 to better push the ends of the two four-sided sliding rods 53, thereby causing the two four-sided sliding rods 53 to move away from each other inside the C-shaped seat 54.

[0032] By setting up the above structure, during disassembly and maintenance, pulling the T-shaped handle 55 moves it away from the two clamping blocks 41. The T-shaped handle 55, through the C-shaped seat 54 and the two quadrangular slide rods 53, drives the two traction rods 51 to slide away from the clamping blocks 41. When the two traction rods 51 slide, they drive the two limit nuts 52 into the inner side of the two clearance channels 43. When the limit nuts 52 cannot move further due to the obstruction of the clearance channels 43, the traction rods 51 are fully extended. At this time, the T-shaped handle 55 is rotated around the medium flow channel as the axis, which in turn drives the two traction rods 51 to rotate through the C-shaped seat 54 and the quadrangular slide rods 53. The two traction rods 51 simultaneously drive the two clamping blocks 41 to rotate outside the outer valve body 11 through the two mounting holes 44. As the two clamping blocks 41 continue to rotate, they move away from each other. During the movement of the two clamping blocks 41, the two quadrangular slide rods 53 are driven by the two traction rods 51. The inner side of the C-shaped seat 54 moves synchronously. When the two clamping blocks 41 are disengaged from the outside of the outer valve body 11, the outer valve body 11 is clamped between the two connecting pipes 31. At the same time, the side of the two clamping blocks 41 away from each other is in contact with the end of the adjacent bolt. At this time, the T-shaped handle 55 is rotated around the short axis of the T-shaped handle 55, which in turn causes the T-shaped handle 55 to drive the expansion rod 56 to rotate between the two quadrangular slide rods 53. As the expansion rod 56 rotates continuously, the expansion rod 56 pushes the two quadrangular slide rods 53 through the arc surfaces at both ends. The two quadrangular slide rods 53 then push the two clamping blocks 41 through the two traction rods 51. The two clamping blocks 41 then push the two sets of medium pipeline connecting assemblies 3 and the two medium pipelines through the adjacent bolts, thereby creating a gap between the two connecting pipes 31 and the outer valve body 11. At this time, the outer valve body 11 can be removed from between the two connecting pipes 31. Then, the outer valve body 11 or the parts inside the outer valve body 11 can be repaired according to the actual situation.

[0033] The specific working process of this invention is as follows: During product assembly, first place the sealing seat A13 inside the left side of the outer valve body 11, then pass the valve stem 24 upward from inside the outer valve body 11, then put the sealing ring A25 on the outside of the valve stem 24 and put it inside the threaded sealing groove 12, then screw the clamping nut 26 into the threaded sealing groove 12 so that the clamping nut 26 presses the sealing ring A25 into the threaded sealing groove 12. The ball valve core 21 is placed inside the outer valve body 11, so that the drive block 23 enters the drive groove 22. Then, the sealing seat B14 and the inner valve body 15 are placed in sequence. The two connecting pipes 31 are respectively attached to the two ends of the outer valve body 11. At this time, the right connecting pipe 31 limits the inner valve body 15, and the inner valve body 15 limits the sealing seat B14, so that the ball valve core 21 is clamped between the sealing seat A13 and the sealing seat B14. Rotate the two clamping blocks 41 so that the two clamping blocks 41 are screwed to both ends of the outer valve body 11 respectively. At this time, the two clamping blocks 41 limit the two connecting pipes 31 through the two annular flanges 32, thereby realizing the assembly. During product installation, place the product between two media pipelines, align the two connecting pipes 31 with the two media pipelines respectively, and finally use bolts and nuts to fix the connecting flange 33 to the adjacent media pipelines to complete the installation. During disassembly and maintenance, pull the T-shaped handle 55 to move it away from the two clamping blocks 41. The T-shaped handle 55 drives the two traction rods 51 to slide away from the clamping blocks 41 through the C-shaped seat 54 and the two four-sided sliding rods 53. When the two traction rods 51 slide, they drive the two limit nuts 52 into the inside of the two clearance channels 43. When the limit nuts 52 cannot move further due to the obstruction of the clearance channels 43, the traction rods 51 are fully deployed. Rotate the T-shaped handle 55 around the medium flow channel as the axis, and then the T-shaped handle 55 drives the two traction rods 51 to rotate through the C-shaped seat 54 and the four-sided slide rod 53. The two traction rods 51 drive the two clamping blocks 41 to rotate on the outside of the outer valve body 11 through the two mounting holes 44. As the two clamping blocks 41 rotate continuously, the two clamping blocks 41 move away from each other. During the movement of the two clamping blocks 41, the two four-sided slide rods 53 drive the two clamping blocks 53 to move synchronously inside the C-shaped seat 54 through the two traction rods 51. When the two clamping blocks 41 detach from the outside of the outer valve body 11, the outer valve body 11 is clamped between the two connecting pipes 31. At the same time, the side of the two clamping blocks 41 away from each other is in contact with the end of the adjacent bolt. At this time, the T-shaped handle 55 is rotated around the short axis of the T-shaped handle 55, which in turn causes the T-shaped handle 55 to drive the expansion rod 56 to rotate between the two quadrangular slide rods 53. As the expansion rod 56 rotates continuously, the expansion rod 56 pushes the two quadrangular slide rods 53 through the arc surfaces at both ends. The two quadrangular slide rods 53 then push the two clamping blocks 41 through the two traction rods 51. The two clamping blocks 41 then push the two sets of medium pipeline connecting assemblies 3 and the two medium pipelines through the adjacent bolts, thereby creating a gap between the two connecting pipes 31 and the outer valve body 11. At this time, the outer valve body 11 can be removed from between the two connecting pipes 31. Then, the outer valve body 11 or the parts inside the outer valve body 11 can be repaired according to the actual situation.

[0034] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0035] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A ball valve that is easy to disassemble and maintain, comprising a valve housing assembly (1), wherein a valve core assembly (2) is disposed inside the valve housing assembly (1), characterized in that: Both ends of the valve housing assembly (1) are connected to medium pipeline connection assemblies (3). The valve housing assembly (1) and the two sets of medium pipeline connection assemblies (3) are fitted together with a double-end clamping unit (4). The double-end clamping unit (4) is provided with a traction expansion unit (5). The traction expansion unit (5) includes two parallel traction rods (51). The front ends of the two traction rods (51) are screwed with limit nuts (52). The rear ends of the two traction rods (51) are fixedly connected with square sliding rods (53). The outer sides of the two square sliding rods (53) are slidably sleeved with C-shaped seats (54) through linear bearings. The back center of the C-shaped seat (54) is rotatably nested with a T-shaped handle (55) through a ball bearing. The front end of the T-shaped handle (55) is fixedly connected with an expansion rod (56) located between the two square sliding rods (53).

2. The ball valve for easy disassembly and maintenance according to claim 1, characterized in that, The two quadrangular sliding rods (53) are provided with arc-shaped surfaces at the ends near the expansion rod (56), the top end of the expansion rod (56), and the bottom end of the expansion rod (56).

3. The ball valve for easy disassembly and maintenance according to claim 2, characterized in that, The valve housing assembly (1) includes an outer valve body (11) with threads on both outer ends. The top of the outer valve body (11) has a threaded sealing groove (12). The outer valve body (11) has a sealing seat A (13), a sealing seat B (14) and an inner valve body (15) that are slidably arranged from left to right inside the outer valve body (11).

4. The ball valve for easy disassembly and maintenance according to claim 3, characterized in that, The valve core assembly (2) includes a spherical valve core (21) that fits tightly between the sealing seat A (13) and the sealing seat B (14), and the top of the spherical valve core (21) is provided with a drive groove (22).

5. The ball valve for easy disassembly and maintenance according to claim 4, characterized in that, A drive block (23) is slidably inserted into the inner side of the drive groove (22) in the horizontal direction. A valve stem (24) is fixedly installed at the top of the drive block (23). The valve stem (24) is rotatably installed inside the outer valve body (11).

6. The ball valve for easy disassembly and maintenance according to claim 5, characterized in that, The valve stem (24) is fitted with a sealing ring A (25) and a clamping nut (26) from bottom to top on the outside. The sealing ring A (25) is located inside the threaded sealing groove (12). The clamping nut (26) is screwed into the threaded sealing groove (12) and clamps the sealing ring A (25).

7. The ball valve for easy disassembly and maintenance according to claim 6, characterized in that, Each of the media pipeline connection assemblies (3) includes a connecting pipe (31) fitted to the end of the outer valve body (11). Both ends of the connecting pipe (31) are nested with sealing rings B. An integrally formed annular flange (32) is provided at the outer end of the connecting pipe (31) near the outer valve body (11). A connecting flange (33) is fixedly provided at the outer end of the connecting pipe (31) away from the outer valve body (11). The connecting flange (33) is connected to the media pipeline by bolts and nuts.

8. The ball valve for easy disassembly and maintenance according to claim 7, characterized in that, The double-end clamping unit (4) includes two clamping blocks (41) that are slidably sleeved on the outside of adjacent connecting pipes (31). The two clamping blocks (41) are provided with threaded grooves (42) on the side close to each other. Any one of the annular flanges (32) is located inside the adjacent threaded grooves (42). The two clamping blocks (41) are screwed to the outer end of the outer valve body (11) through the two threaded grooves (42).

9. The ball valve for easy disassembly and maintenance according to claim 8, characterized in that, The clamping block (41) has a clearance channel (43) at the bottom front, and a mounting hole (44) connected to the clearance channel (43) is provided at the top back of the clamping block (41). Any one of the traction rods (51) is slidably disposed inside the adjacent mounting hole (44) and extends to the inside of the adjacent clearance channel (43).

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