A ball valve body sealing structure

Abstract

The present disclosure provides a ball valve body sealing structure, relates to the technical field of ball valves, and comprises a valve shell assembly, the inside and top of the valve shell assembly are jointly provided with a detachable valve core assembly, the top center of the valve core assembly is detachably provided with a valve rod sealing unit, two groups of symmetrically arranged fastening locking units are arranged between the valve shell assembly and the valve core assembly, and valve seat pressing units are screw-connected to the left and right ends in the valve shell assembly. When two rubber valve seats are replaced, only four T-shaped nuts need to be disassembled, and in addition, in the process of disassembling the T-shaped nuts to separate the valve shell assembly and the valve core assembly, the pressing of the two rubber valve seats can be actively released, thereby providing a precondition for the subsequent rapid movement of the rubber valve seat, and the ball valve does not need to be disassembled from between the medium input pipeline and the medium output pipeline in the whole replacement process, so that the replacement steps are effectively simplified, manpower is saved, and the replacement efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the field of ball valves, and more particularly to a ball valve body sealing structure. Background Technology

[0002] The rubber valve seat is the most crucial sealing component of a ball valve. Located inside the valve body and tightly fitted to the ball, it relies on pre-tightening force to achieve a seal. As a consumable part, the ball valve depends on the rubber valve seat to prevent internal leakage of the medium, which is the key to valve shut-off. When the rubber valve seat ages and fails, the valve will not be able to close tightly, resulting in medium leakage.

[0003] In the prior art, when disassembling the two rubber valve seats located inside the valve body, it is often necessary to first remove the ball valve from between the two medium pipelines, then open the valve body, and then remove the old two rubber valve seats and replace them with new ones.

[0004] The replacement process described above not only requires disassembling and assembling multiple sets of bolts and nuts, but also requires handling and lifting the ball valve. This is labor-intensive and time-consuming, significantly impacting the efficiency of valve seat replacement. Summary of the Invention

[0005] This disclosure provides a ball valve body sealing structure. When replacing the two rubber valve seats, only four T-nuts need to be disassembled and installed. In addition, during the process of disassembling the T-nuts to separate the valve body assembly and the valve core assembly, the clamping of the two rubber valve seats can be actively released, thus providing a precondition for the rapid movement of the rubber valve seats. The entire replacement process does not require the ball valve to be removed from the medium input pipeline and the medium output pipeline, effectively simplifying the replacement steps, saving manpower and improving replacement efficiency. This solves the problem mentioned in the background art that the existing valve seat replacement process not only requires the disassembly and installation of multiple sets of bolts and nuts, but also requires the handling and lifting of the ball valve, which is labor-intensive and time-consuming, and has a significant impact on the valve seat replacement efficiency.

[0006] According to one aspect of this disclosure, a ball valve body sealing structure is provided, including a valve housing assembly, a detachable valve core assembly is provided inside and at the top of the valve housing assembly, a valve stem sealing unit is detachably provided at the top center of the valve core assembly, two sets of symmetrically arranged fastening and locking units are provided between the valve housing assembly and the valve core assembly, valve seat pressing units are screwed to both the left and right ends inside the valve housing assembly, and medium pipeline connection units are screwed to both the left and right ends of the valve housing assembly. The valve housing assembly includes a valve housing with openings at both the left and right ends, a longitudinal channel is provided at the center of the top of the valve housing, and T-shaped grooves connected to the longitudinal channel are provided on both sides of the top of the valve housing. The valve core assembly includes a valve cover that is slidably inserted into the inner side of the longitudinal channel and fits against the top of the valve body in the vertical direction. The valve cover has clearance channels at the four corners of its top and clearance grooves at the middle of both sides. Each set of fastening and locking units includes two fastening studs fixedly disposed inside adjacent T-slots. An elastic element in an energy storage state is sleeved on the bottom of the outer side of each fastening stud. A T-shaped plate located inside adjacent T-slots is slidably sleeved on the outer side of the two fastening studs along the vertical direction. A locking push plate slidably disposed inside adjacent clearance slots along the vertical direction is fixedly connected to the inner end of the T-shaped plate. A T-shaped nut that is pressed against the T-shaped plate and the top of the valve cover and located inside adjacent clearance channels is screwed onto the outer side of each fastening stud.

[0007] According to one aspect of the technical solution of this disclosure, a sealing groove A is provided on the top edge of the valve body, and a sealing ring A is provided inside the sealing groove A.

[0008] According to one aspect of the technical solution of this disclosure, a sealing groove B is provided at the center of the top of the valve cover.

[0009] According to one aspect of the technical solution of this disclosure, a valve stem is rotatably provided on the inner side of the valve cover, a handle is fixedly connected to the top of the valve stem, a spherical valve core is fixedly connected to the bottom of the valve stem, and rubber valve seats that fit against the bottom of the valve cover and the inner wall of the valve body are attached to both sides of the spherical valve core.

[0010] According to one aspect of the technical solution of this disclosure, the valve stem sealing unit includes a sealing seat and a sealing ring B that are slidably sleeved on the outside of the valve stem in a vertical direction. The sealing ring B is located inside the sealing groove B. The sealing seat is pressed against the top of the sealing ring B and fits against the top of the valve cover. Each of the four corners of the top of the sealing seat is slidably sleeved with a fixing bolt that is screwed onto the valve cover in a vertical direction.

[0011] According to one aspect of the technical solution of this disclosure, any group of valve seat pressing units includes a threaded pipe fitting screwed to the inside of the valve housing opening. The top and bottom of the outer end of the threaded pipe fitting are provided with operating grooves. A pressing pipe fitting is slidably arranged on the inner side of the threaded pipe fitting in the horizontal direction. A push groove is provided on the top of the pressing pipe fitting. The bottom end of the locking push plate is located inside the adjacent push groove and is in contact with the inner wall of the push groove.

[0012] According to one aspect of the technical solution of this disclosure, a sealing groove C is provided at the outer end of the threaded pipe fitting, and a sealing ring C is provided inside the sealing groove C.

[0013] According to one aspect of the technical solution of this disclosure, any group of media pipeline connection units includes a T-shaped connecting pipe pressed against the end of the valve body and the outer end of the adjacent threaded pipe fitting, and the end of the T-shaped connecting pipe away from the valve body is fixedly connected to a media pipeline connection flange.

[0014] According to one aspect of the technical solution of this disclosure, a threaded fitting is slidably sleeved on the outer side of the T-shaped connecting pipe in the horizontal direction, and the threaded fitting is screwed to the outer end of the valve body.

[0015] In the technical solution of this embodiment, the present invention provides a valve body assembly, a valve core assembly, and a fastening and locking unit, so that when replacing the two rubber valve seats, only four T-nuts need to be disassembled and assembled. In addition, during the process of disassembling the T-nuts to separate the valve body assembly and the valve core assembly, the clamping of the two rubber valve seats can be actively released, thereby providing a prerequisite for the rapid movement of the rubber valve seats. The entire replacement process does not require the ball valve to be removed from the medium input pipe and the medium output pipe, effectively simplifying the replacement steps, saving manpower and improving replacement efficiency. 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 according to one embodiment of the present 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 valve stem sealing unit according to one embodiment of the present disclosure; Figure 5 This is a schematic diagram of the fastening and locking unit according to one embodiment of the present disclosure; Figure 6 This is a schematic diagram of the structure of a valve seat clamping unit according to one embodiment of the present disclosure; Figure 7 This is a schematic diagram of the structure of a medium pipeline connection unit according to one embodiment of the present disclosure.

[0018] Figure label: 1. Valve housing assembly; 11. Valve housing; 12. Longitudinal passage; 13. T-slot; 14. Sealing groove A; 15. Sealing ring A; 2. Valve core assembly; 21. Valve cover; 22. Sealing groove B; 23. Clearance passage; 24. Clearance groove; 25. Valve stem; 26. Handle; 27. Ball valve core; 28. Rubber valve seat; 3. Valve stem sealing unit; 31. Sealing seat; 32. Sealing ring B; 33. Fixing bolt; 4. 41. Fastening and locking unit; 42. Fastening stud; 43. Elastic element; 44. T-shaped plate; 45. Locking push plate; 56. T-nut; 57. Valve seat clamping unit; 58. Threaded pipe fitting; 59. Operating groove; 50. Clamping pipe fitting; 51. Push groove; 52. Sealing groove C; 53. Sealing ring C; 68. Medium pipeline connection unit; 69. T-shaped connecting pipe; 60. Medium pipeline connection flange; 61. Threaded fitting. 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 1-7 The ball valve body sealing structure shown includes a valve shell assembly 1, a detachable valve core assembly 2 disposed inside and on top of the valve shell assembly 1, a valve stem sealing unit 3 detachably disposed at the center of the top of the valve core assembly 2, two sets of symmetrically arranged fastening and locking units 4 disposed between the valve shell assembly 1 and the valve core assembly 2, the fastening and locking units 4 being used to fix the valve shell assembly 1 and the valve core assembly 2 and to push the fastening and locking units 4, valve seat pressing units 5 for pressing and sealing the valve core assembly 2 are screwed to both the left and right ends inside the valve shell assembly 1, and medium pipeline connecting units 6 for connecting the medium input pipeline and the medium output pipeline are screwed to both the left and right ends of the valve shell assembly 1.

[0023] like Figure 2As shown, the valve housing assembly 1 includes a valve housing 11 with openings at both the left and right ends. A longitudinal channel 12 is provided at the center of the top of the valve housing 11. T-shaped grooves 13 communicating with the longitudinal channel 12 are provided on both sides of the top of the valve housing 11. A sealing groove A14 is provided at the top edge of the valve housing 11. A sealing ring A15 is provided inside the sealing groove A14. The sealing ring A15 is used to seal the valve housing 11 and the valve cover 21 to prevent the medium from leaking through the gap between the valve housing 11 and the valve cover 21.

[0024] like Figure 3 As shown, the valve core assembly 2 includes a valve cover 21 that is slidably inserted into the inner side of the longitudinal channel 12 and fits against the top of the valve housing 11 in the vertical direction. A sealing groove B22 is provided at the center of the top of the valve cover 21. A clearance channel 23 is provided at each of the four corners of the top of the valve cover 21. A clearance groove 24 is provided in the middle of both sides of the valve cover 21. A valve stem 25 is rotatably provided inside the valve cover 21. A handle 26 is fixedly connected to the top of the valve stem 25. A spherical valve core 27 is fixedly connected to the bottom of the valve stem 25. Rubber valve seats 28 that fit against the bottom of the valve cover 21 and the inner wall of the valve housing 11 are attached to both sides of the spherical valve core 27.

[0025] By setting the above structure, when the ball valve core 27 is in the closed state, the pressure-deformed rubber valve seat 28 seals the valve body 11, valve cover 21 and ball valve core 27, thereby preventing medium leakage. In addition, during actual use, the operator can rotate the valve stem 25 by rotating the handle 26, which in turn causes the valve stem 25 to rotate the ball valve core 27 between the two rubber valve seats 28. When the ball valve core 27 is connected to the two rubber valve seats 28, the ball valve is in the open state and the medium can pass through. When the ball valve core 27 is not connected to the two rubber valve seats 28, the ball valve is in the closed state and the medium cannot pass through.

[0026] like Figure 4 As shown, the valve stem sealing unit 3 includes a sealing seat 31 and a sealing ring B32 that are slidably sleeved on the outside of the valve stem 25 in the vertical direction. The sealing ring B32 is located inside the sealing groove B22. The sealing seat 31 is pressed against the top of the sealing ring B32 and fits against the top of the valve cover 21. The four corners of the top of the sealing seat 31 are slidably sleeved in the vertical direction with fixing bolts 33 that are screwed to the valve cover 21.

[0027] By setting the above structure, the sealing ring B32 can be used to seal the valve cover 21 and the valve stem 25, thereby preventing the medium from leaking through the gap between the valve cover 21 and the valve stem 25.

[0028] like Figure 5As shown, any set of fastening and locking units 4 includes two fastening studs 41 fixedly installed inside adjacent T-shaped grooves 13. An elastic element 42 in an energy storage state is sleeved on the bottom of the outer side of any fastening stud 41. A T-shaped plate 43 located inside adjacent T-shaped grooves 13 is slidably sleeved on the outer side of the two fastening studs 41 along the vertical direction. A locking push plate 44 slidably installed inside adjacent clearance grooves 24 along the vertical direction is fixedly connected to the inner end of the T-shaped plate 43. A T-shaped nut 45 is screwed onto the outer side of any fastening stud 41, pressing against the top of the T-shaped plate 43 and the valve cover 21 and located inside adjacent clearance channels 23.

[0029] By setting the above structure, when the four T-nuts 45 are screwed onto the outside of the four fastening studs 41 and tightened, during the tightening process, the bottom end of the T-nut 45 contacts the adjacent T-plate 43 and pushes it downward, thereby compressing and storing energy in the elastic element 42. At the same time, the T-plate 43 drives the locking push plate 44 to move downward. When the locking push plate 44 moves downward, it pushes the pressure tube 53 through the inner wall of the push groove 54.

[0030] like Figure 6 As shown, any set of valve seat clamping units 5 includes a threaded pipe fitting 51 screwed into the inner side of the valve housing 11 opening. The top and bottom of the outer end of the threaded pipe fitting 51 are provided with operating grooves 52. The two operating grooves 52 are used to rotate the threaded pipe fitting 51, so as to facilitate screwing the threaded pipe fitting 51 into or out of the valve housing 11. A clamping pipe fitting 53 is slidably arranged in the horizontal direction inside the threaded pipe fitting 51. A push groove 54 is provided at the top of the clamping pipe fitting 53. The bottom end of the locking push plate 44 is located inside the adjacent push groove 54 and is in contact with the inner wall of the push groove 54. A sealing groove C55 is provided at the outer end of the threaded pipe fitting 51. A sealing ring C56 is provided inside the sealing groove C55. The sealing ring C56 can realize the sealing between the threaded pipe fitting 51 and the T-shaped connecting pipe 61, thereby preventing leakage of the medium when it is transmitted between the threaded pipe fitting 51 and the T-shaped connecting pipe 61.

[0031] By setting the above structure, when the inclined surface at the bottom of the locking push plate 44 pushes the inclined surface inside the push groove 54, the clamping pipe 53 moves horizontally towards the ball valve core 27 inside the threaded pipe 51, thereby cooperating with the ball valve core 27 to clamp the rubber valve seat 28, causing the rubber valve seat 28 to deform, so as to achieve a seal between the valve body 11, the valve cover 21 and the ball valve core 27, and prevent the medium from leaking through the ball valve core 27 when the ball valve is in the closed state.

[0032] like Figure 7As shown, any set of media pipeline connection units 6 includes a T-shaped connecting pipe 61 pressed against the end of the valve body 11 and the outer end of the adjacent threaded pipe fitting 51. The end of the T-shaped connecting pipe 61 away from the valve body 11 is fixedly connected to a media pipeline connection flange 62. A threaded fitting 63 is slidably sleeved on the outer side of the T-shaped connecting pipe 61 in the horizontal direction. The threaded fitting 63 is screwed to the outer end of the valve body 11.

[0033] By setting up the above structure, when the ball valve is in use, the medium input pipe and the medium output pipe can be connected to the left and right sides of the ball valve respectively through two medium pipe connecting flanges 62. During the actual medium transportation process, the medium is input into the left T-shaped connecting pipe 61 through the medium input pipe, and then enters the ball valve core 27 through the left threaded fitting 51, the left clamping fitting 53 and the left rubber valve seat 28. Then, it enters the medium output pipe through the right rubber valve seat 28, the right clamping fitting 53, the right threaded fitting 51 and the right T-shaped connecting pipe 61 in sequence. In addition, when it is necessary to disassemble the valve seat clamping unit 5, the threaded fitting 63 can be rotated to disengage from the outside of the valve body 11. At this time, the T-shaped connecting pipe 61 can be disengaged from the end of the valve body 11, thereby exposing the threaded fitting 51.

[0034] The specific working process of this invention is as follows: like Figure 1 In the state shown, the two locking push plates 44 are inserted into the inner side of the two push grooves 54 respectively, thereby causing the two clamping pipes 53 to clamp the two rubber valve seats 28 respectively. At this time, the two rubber valve seats 28 deform and achieve a seal between the valve body 11, the valve cover 21 and the ball valve core 27. In actual use, the medium input pipe and the medium output pipe are connected to the left and right sides of the ball valve respectively through two medium pipe connecting flanges 62. The medium is input into the left T-shaped connecting pipe 61 through the medium input pipe, and then enters the ball valve core 27 through the left threaded fitting 51, the left clamping fitting 53 and the left rubber valve seat 28. Then, it enters the medium output pipe through the right rubber valve seat 28, the right clamping fitting 53, the right threaded fitting 51 and the right T-shaped connecting pipe 61 in sequence. When the two rubber valve seats 28 need to be replaced, the four T-nuts 45 are unscrewed from the outside of the four fastening studs 41 respectively. At this time, the T-nuts 45 release the pressure on the two T-shaped plates 43 and the valve cover 21. Then, the four elastic elements 42 in the energy storage state push the two T-shaped plates 43 to move upward in the inner side of the adjacent T-shaped groove 13 respectively. When the T-shaped plates 43 move upward, they drive the locking push plate 44 to move upward synchronously in the inner side of the adjacent clearance groove 24. As a result, the bottom end of the locking push plate 44 no longer presses against the inner wall of the adjacent push groove 54. At this time, the two clamping tubes 53 no longer press against the two rubber valve seats 28 to be replaced. Lift the valve cover 21 vertically upwards. The valve cover 21 drives the ball valve core 27 to move upwards synchronously through the valve stem 25. Since there is not enough space between the ball valve core 27 and the clamping pipe 53 for the rubber valve seat 28 to move laterally, the two rubber valve seats 28 move upwards synchronously under the action of the ball valve core 27 until they are moved out from the inside of the valve body 11 through the longitudinal channel 12. At this time, the two rubber valve seats 28 to be replaced can be removed. Take two new rubber valve seats 28 and attach them to the left and right sides of the spherical valve core 27 respectively. Then, put the spherical valve core 27 and the two rubber valve seats 28 into the valve body 11 through the longitudinal channel 12. At this time, the spherical valve core 27 and the two rubber valve seats 28 are between the two clamping tubes 53. At the same time, the valve cover 21 is attached to the top of the valve body 11 again. Then, screw four T-nuts 45 onto the outside of four fastening studs 41 and tighten them. During the tightening process of the T-nuts 45, the bottom end of the T-nuts 45 contacts the adjacent T-plate 43 and pushes it down. At this time, the elastic element 42 is compressed and stored again. At the same time, the T-plate 43 drives the locking push plate 44 to move down. When the locking push plate 44 moves down, it pushes the clamping tube 53 through the inner wall of the push groove 54, thereby making the clamping tube 53 press the new rubber valve seats 28 against the side of the spherical valve core 27. Once the T-nut 45 is pressed onto the top of the valve cover 21, stop rotating the T-nut 45. At this point, the T-nut 45 fixes the valve cover 21 to the top of the valve body 11, thus completing the replacement process.

[0035] 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.

[0036] 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 body sealing structure, characterized in that, The valve housing assembly includes a valve body assembly (1), a detachable valve core assembly (2) is provided inside and on top of the valve body assembly (1), a valve stem sealing unit (3) is detachably provided at the center of the top of the valve core assembly (2), two sets of symmetrically arranged fastening and locking units (4) are provided between the valve body assembly (1) and the valve core assembly (2), valve seat pressing units (5) are screwed to both the left and right ends inside the valve body assembly (1), and medium pipeline connecting units (6) are screwed to both the left and right ends of the valve body assembly (1). The valve housing assembly (1) includes a valve housing (11) with openings at both the left and right ends. A longitudinal channel (12) is provided at the center of the top of the valve housing (11), and T-shaped grooves (13) communicating with the longitudinal channel (12) are provided on both sides of the top of the valve housing (11). The valve core assembly (2) includes a valve cover (21) that is slidably inserted into the inner side of the longitudinal channel (12) and fits against the top of the valve shell (11) in the vertical direction. The valve cover (21) has clearance channels (23) at the four corners of its top and clearance grooves (24) at the middle of both sides of its sides. Each set of fastening and locking units (4) includes two fastening studs (41) fixedly disposed inside the adjacent T-shaped groove (13). An elastic element (42) in an energy storage state is sleeved on the bottom of the outer side of each fastening stud (41). A T-shaped plate (43) located inside the adjacent T-shaped groove (13) is slidably sleeved on the outer side of the two fastening studs (41) in the vertical direction. A locking push plate (44) slidably disposed inside the adjacent clearance groove (24) is fixedly connected to the inner end of the T-shaped plate (43). A T-shaped nut (45) is screwed onto the outer side of each fastening stud (41) and pressed against the top of the T-shaped plate (43) and the valve cover (21) and located inside the adjacent clearance channel (23).

2. The ball valve body sealing structure according to claim 1, characterized in that, The valve body (11) has a sealing groove A (14) on its top edge, and a sealing ring A (15) is provided inside the sealing groove A (14).

3. The ball valve body sealing structure according to claim 2, characterized in that, A sealing groove B (22) is provided at the center of the top of the valve cover (21).

4. The ball valve body sealing structure according to claim 3, characterized in that, A valve stem (25) is rotatably provided on the inner side of the valve cover (21). A handle (26) is fixedly connected to the top of the valve stem (25). A spherical valve core (27) is fixedly connected to the bottom of the valve stem (25). Rubber valve seats (28) that fit against the bottom of the valve cover (21) and the inner wall of the valve shell (11) are attached to both sides of the spherical valve core (27).

5. The ball valve body sealing structure according to claim 4, characterized in that, The valve stem sealing unit (3) includes a sealing seat (31) and a sealing ring B (32) that are slidably sleeved on the outside of the valve stem (25) in the vertical direction. The sealing ring B (32) is located inside the sealing groove B (22). The sealing seat (31) is pressed against the top of the sealing ring B (32) and fits against the top of the valve cover (21). The four corners of the top of the sealing seat (31) are slidably sleeved with fixing bolts (33) that are screwed into the valve cover (21) in the vertical direction.

6. The ball valve body sealing structure according to claim 5, characterized in that, Each valve seat clamping unit (5) includes a threaded pipe (51) screwed to the inside of the valve housing (11) opening. The top and bottom of the outer end of the threaded pipe (51) are provided with operating grooves (52). A clamping pipe (53) is slidably arranged on the inner side of the threaded pipe (51) in the horizontal direction. A push groove (54) is provided on the top of the clamping pipe (53). The bottom end of the locking push plate (44) is located inside the adjacent push groove (54) and is in contact with the inner wall of the push groove (54).

7. The ball valve body sealing structure according to claim 6, characterized in that, The outer end of the threaded pipe fitting (51) is provided with a sealing groove C (55), and a sealing ring C (56) is provided on the inner side of the sealing groove C (55).

8. The ball valve body sealing structure according to claim 7, characterized in that, Each of the media pipeline connection units (6) includes a T-shaped connecting pipe (61) pressed against the end of the valve body (11) and the outer end of the adjacent threaded pipe fitting (51), and a media pipeline connection flange (62) is fixedly connected to the end of the T-shaped connecting pipe (61) away from the valve body (11).

9. The ball valve body sealing structure according to claim 8, characterized in that, The T-shaped connecting pipe (61) is slidably sleeved with a threaded fitting (63) on the outside in the horizontal direction, and the threaded fitting (63) is screwed to the outer end of the valve body (11).

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