A new type of high pressure pipeline ball valve

Abstract

The present invention provides a novel high-pressure pipeline ball valve, belonging to the technical field of high-pressure valves, comprising a first valve body and a second valve body which are separately arranged, the first valve body is provided with an ear plate extending toward a side where the second valve body is located, the second valve body is provided with a plate groove which matches the ear plate, the first valve body and the second valve body jointly form a valve cavity for accommodating a ball body, the ball body is arranged in the valve cavity through a valve stem connected to the ear plate, the end of the valve stem passes through the first valve body and is connected to a first transmission device arranged on the first valve body; the first flange plate and the second flange plate connect and fix the novel high-pressure pipeline ball valve as a whole in a supply pipeline, the first valve body and the pipeline plate are connected by a plurality of transmission rods which penetrate the side walls of the first valve body and the second valve body along the axial direction of the first valve body and the second valve body, a section of the transmission rod is a screw rod which matches the transmission of the second valve body, and one end of the first valve body is provided with a plurality of transmission wheels which make all the transmission rods rotate synchronously under the action of a transmission chain.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a novel high-pressure pipeline ball valve. Background Art

[0002] High-pressure pipeline ball valves are mainly used for long-distance pipeline supply of oil and natural gas and urban gas pipeline supply. Compared with ordinary ball valves, high-pressure pipeline ball valves need to consider their ability to withstand pipeline stress, their safety and weather resistance.

[0003] The structure of the traditional high-pressure pipeline ball valve is generally as follows Figure 1 As shown, it includes a thickened valve body, flange plates on both sides of the valve body for connecting to the pipeline, and a transmission device and handwheel on the valve body for controlling the rotation of the ball. High-pressure pipeline ball valves are replaced less frequently than ordinary ball valves, so dirt is easily accumulated in the valve body cavity and the ball after long-term use, which will affect the supply quality of the supply pipeline. However, it is very difficult to clean the interior of the traditional high-pressure pipeline ball valve without leaving the supply pipeline. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a novel high-pressure pipeline ball valve.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a new type of high-pressure pipeline ball valve, including a first valve body and a second valve body which are separately arranged, the first valve body is provided with an ear plate extending toward the side where the second valve body is located, the second valve body is provided with a plate groove matching the ear plate, the first valve body and the second valve body, the ear plate and the plate groove can be tightly connected, the first valve body and the second valve body jointly form a valve cavity for accommodating a ball, the ball is arranged in the valve cavity through a valve stem connected to the ear plate, the end of the valve stem passes through the first valve body and is transmission-connected to a first transmission device arranged on the first valve body; one side of the first valve body A first flange plate is connected, one side of the second valve body is connected to a second flange plate through a telescopic pipe and a pipe plate, the first flange plate and the second flange plate integrally connect and fix the novel high-pressure pipe ball valve in the supply pipe, the first valve body and the pipe plate are connected by a plurality of transmission rods penetrating the side wall of the first valve body and the side wall of the second valve body along the axial direction of the first valve body and the second valve body, a section of the transmission rod is a screw rod that cooperates with the second valve body in transmission, one end of the first valve body is provided with a plurality of transmission wheels that make all the transmission rods rotate synchronously under the action of a transmission chain, and the first valve body is also provided with a second transmission device that is connected to the transmission chain in transmission;

[0006] The first transmission device is connected to a first rotating rod in transmission connection, and the first rotating rod is connected to a second rotating rod through a transfer member, and the transfer member is formed by connecting members that can rotate with each other, and the first rotating rod and the second rotating rod are respectively connected to the two connecting members, and a sliding sleeve covering the transfer member is also provided at the connection between the first rotating rod and the second rotating rod, and the interior of the sliding sleeve is engaged with the first rotating rod and the second rotating rod to limit the relative rotation between the two, and the sliding sleeve is fixed by a compression spring extending from the first transmission device along the axial direction of the first rotating rod, and the first transmission device includes a detection device after the valve stem is rotated into position The first transmission device also includes a push rod for moving the sleeve axially along the first rotating rod into the first transmission device in response to the first pressure sensor, the second rotating rod is provided with a first gear and a handwheel, the second transmission device includes a second gear that matches the first gear, and the second rotating rod can be bent downward after the restriction of the sleeve is released to make the first gear and the second gear mesh, thereby rotating the handwheel through the second transmission device and the transmission rod so that the second valve body can move along the transmission rod to the side where the pipeline plate is located when the ball is closed.

[0007] As an implementable method, four transmission rods are provided, one end of the transmission rod passes through the side wall of the first valve body and is fixed to the end of the first valve body through the transmission wheel with a bearing, and the other end of the transmission rod passes through the pipeline plate and is fixed to the end of the pipeline plate through an end plate with a bearing.

[0008] As an practicable manner, a plurality of the transmission wheels are evenly arranged along the circumferential direction at one end of the first valve body.

[0009] As an implementable manner, a contact piece is provided on the sliding sleeve, the push rod is located above the contact piece and a push piece cooperating with the contact piece is provided at the end thereof, the first pressure sensor is electrically connected to the push rod, and when the first pressure sensor detects that the force is greater than a set value, the push rod is retracted to push the sliding sleeve to move into the first transmission device.

[0010] As an practicable manner, the axial length of the first valve body is smaller than the axial length of the second valve body.

[0011] As an implementable manner, a gear box is provided on the ear plate, the end of the valve stem passes through the gear box, and the gear box is transmission-connected to the first transmission device.

[0012] As an practicable manner, the compression spring is sleeved outside the first rotating rod.

[0013] As an implementable manner, both the bottom of the first rotating rod and the bottom of the second rotating rod are provided with a slot, and the sliding sleeve is provided with a block that is inserted into the two slots. After the sliding sleeve moves into the first transmission device, the block can be disengaged from the two slots.

[0014] As an practicable manner, the second transmission device also includes a sprocket connected to the transmission chain and a third gear coaxial with the second gear, the second gear, the third gear and the sprocket rotate synchronously, the first valve body is also provided with a fourth gear located below the third gear, the fourth gear is meshed with the third gear, the first valve body is also provided with a driving device and a second pressure sensor extending into the first valve body, the driving device is provided with a clutch that can enable the fourth gear to be transmission connected; when the first pressure sensor detects that the force is not greater than a set value and the second pressure sensor detects that the force is greater than a set value, the driving device periodically controls the clutch and the fourth gear to be transmission connected and drives the transmission rod to rotate through the third gear and the sprocket to make the second valve body approach the side where the first valve body is located.

[0015] As an implementable manner, the second gear and the third gear are attached to one place on the gear shaft.

[0016] The technical effects of the present invention are mainly reflected in the following aspects:

[0017] The new high-pressure pipeline ball valve makes a significant improvement on the basis of the traditional high-pressure ball valve integrated valve body, and sets the valve body as a split first valve body and a second valve body. The first valve body is provided with an ear plate extending to the side where the second valve body is located, and the second valve body is provided with a plate groove matching the ear plate. The ball is arranged in the valve cavity through the valve stem connected to the upper and lower ear plates, and the valve seat that seals with the ball is arranged in the first valve body and the second valve body. Unlike the traditional high-pressure ball valve, which is difficult to clean the internal valve cavity and the ball, the new high-pressure pipeline ball valve provided in this embodiment can also rotate several transmission rods synchronously without rotating the ball by turning the hand wheel, so that the second valve body is separated from the first valve body, most of the ball and the valve cavity are exposed, and then the interior of the new high-pressure pipeline ball valve is cleaned. Because when the ball valve is closed, only one side of the ball is sealed with the valve seat in the first valve body, and when the second valve body moves, the position of the ball does not move relative to the valve seat, so it does not affect the normal closing of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : A schematic diagram of the structure of a traditional high-pressure ball valve mentioned in the background technology;

[0019] Figure 2 : A first structural schematic diagram of a new type of high-pressure pipeline ball valve provided in an embodiment of the present invention;

[0020] Figure 3 : A second structural schematic diagram of a novel high-pressure pipeline ball valve provided in an embodiment of the present invention;

[0021] Figure 4 : A third structural schematic diagram of a novel high-pressure pipeline ball valve provided in an embodiment of the present invention;

[0022] Figure 5 : Figure 4 A magnified view of part A of the new high-pressure pipeline ball valve provided;

[0023] Figure 6 : An enlarged cross-sectional view of the adapter provided in an embodiment of the present invention.

[0024] In the figure: 1, first valve body; 2, second valve body; 3, ear plate; 4, plate groove; 5, ball; 6, valve chamber; 7, valve stem; 8, first transmission device; 81, first pressure sensor; 82, push rod; 9, first flange plate; 10, telescopic pipe; 11, pipe plate; 12, second flange plate; 13, transmission rod; 14, screw rod; 15, transmission chain; 16, transmission wheel; 17, second transmission device; 171, second gear; 172, sprocket; 173, third gear; 18, first rotating rod; 19, adapter; 191, tapping member; 20, second rotating rod; 21, sliding sleeve; 22, compression spring; 23, first gear; 24, hand wheel; 25, end plate; 26, contact member; 27, push member; 28, gear box; 29, fourth gear; 30, driving device; 31, second pressure sensor; 32, slot; 33, block. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] In one embodiment, if Figure 2-4 , Figure 6 shown.

[0027] The novel high-pressure pipeline ball valve provided in the present embodiment comprises a first valve body 1 and a second valve body 2 which are separately arranged. The first valve body 1 is provided with an ear plate 3 extending toward the side where the second valve body 2 is located, and the second valve body 2 is provided with a plate groove 4 which matches the ear plate 3. The first valve body 1 and the second valve body 2, the ear plate 3 and the plate groove 4 can be tightly connected. A valve cavity 6 for accommodating a ball 5 is formed in the first valve body 1 and the second valve body 2 together. The ball 5 is arranged in the valve cavity 6 through a valve stem 7 connected to the ear plate 3. The end of the valve stem 7 passes through the first valve body 1 and is transmission-connected to a first transmission device 8 arranged on the first valve body 1. A first flange plate 9 is connected to one side of the first valve body 1, and a first flange plate 9 is connected to one side of the second valve body 2. A second flange plate 12 is connected through the telescopic pipe 10 and the pipe plate 11. The first flange plate 9 and the second flange plate 12 connect and fix the novel high-pressure pipe ball valve as a whole in the supply pipe. The first valve body 1 and the pipe plate 11 are connected by a plurality of transmission rods 13 that penetrate the side wall of the first valve body 1 and the side wall of the second valve body 2 along the axial direction of the first valve body 1 and the second valve body 2. A section of the transmission rod 13 is a screw rod 14 that cooperates with the second valve body 2 in transmission. A plurality of transmission wheels 16 are provided at one end of the first valve body 1 to make all the transmission rods 13 rotate synchronously under the action of the transmission chain 15. A second transmission device 17 that transmits and connects the transmission chain 15 is also provided on the first valve body 1; the first transmission device 8 The upper transmission is connected with a first rotating rod 18, and the first rotating rod 18 is connected with a second rotating rod 20 through a transfer member 19. The transfer member 19 is connected by a tapping member 191 that can rotate with each other. The first rotating rod 18 and the second rotating rod 20 are respectively connected to the two tapping members 191. The connection between the first rotating rod 18 and the second rotating rod 20 is also sleeved with a sliding sleeve 21 covering the transfer member 19. The interior of the sliding sleeve 21 is engaged with the first rotating rod 18 and the second rotating rod 20 to limit the relative rotation between the two. The sliding sleeve 21 is fixed by a compression spring 22 extending from the first transmission device 8 along the axial direction of the first rotating rod 18. The first transmission device 8 includes a detection valve stem 7 that is subjected to force after being rotated into position. The first transmission device 8 also includes a push rod 82 for moving the sleeve 21 axially along the first rotating rod 18 into the first transmission device 8 in response to the first pressure sensor 81. The second rotating rod 20 is provided with a first gear 23 and a hand wheel 24. The second transmission device 17 includes a second gear 171 that cooperates with the first gear 23. After the restriction of the sleeve 21 is released, the second rotating rod 20 can be bent downward to make the first gear 23 and the second gear 171 mesh. The hand wheel 24 is rotated through the second transmission device 17 and the transmission rod 13 so that the second valve body 2 can move along the transmission rod 13 to the side where the pipeline plate 11 is located when the ball 5 is closed.

[0028] In this embodiment, the novel high-pressure pipeline ball valve makes a significant improvement on the basis of the integrated valve body of the conventional high-pressure ball valve, and the valve body is set as a first valve body 1 and a second valve body 2 which are separated. Figure 2 and Figure 3As shown, the first valve body 1 is provided with an ear plate 3 extending toward the side where the second valve body 2 is located, and the second valve body 2 is provided with a plate groove 4 that matches the ear plate 3. The ball 5 is arranged in the valve cavity 6 through the valve stem 7 connected to the upper and lower ear plates 3, and the valve seat that seals with the ball is arranged in both the first valve body 1 and the second valve body 2. Unlike the traditional high-pressure ball valve, which is difficult to clean the internal valve cavity 6 and the ball 5, the new high-pressure pipeline ball valve provided in this embodiment can also rotate several transmission rods 13 synchronously without rotating the ball 5 by rotating the hand wheel 24, so that the second valve body 2 is separated from the first valve body 1, and most of the ball 5 (mainly the part of the ball 5 opening) and the valve cavity are exposed, and then the interior of the new high-pressure pipeline ball valve is cleaned. Because when the ball valve is closed, only one side of the ball 5 is sealed with the valve seat in the first valve body 1, and when the second valve body 2 moves, the position of the ball 5 relative to the valve seat does not move, so it does not affect the normal closing of the ball valve.

[0029] In this embodiment, the complete process of the new high-pressure pipeline ball valve opening the interior of the traditional high-pressure ball valve is as follows: after the valve stem 7 and the ball 5 are turned to close the ball valve (i.e., the valve stem 7 is turned to the right position), if the hand wheel 24 is turned continuously, the first pressure sensor 81 will detect that the force on the valve stem 7 is greater than the set value. At this time, the push rod 82 drives the sliding sleeve 21 to separate from the adapter 19 and the second rotating rod 20. Figure 6 As shown, the second rotating rod 20 can be bent relative to the first rotating rod 18, and because the two connecting members 191 can rotate relative to each other, the first rotating rod 18 will no longer rotate when the hand wheel 24 and the second rotating rod 20 are rotated. Figure 4 As shown, after the first rotating rod 18 is bent, the first gear 23 and the second gear 171 can be matched, and all the transmission rods 13 are synchronously rotated through the second transmission device 17 and finally through the transmission chain 15. Then, under the action of the transmission rod 13, the second valve body 2 can move along the transmission rod 13 to the side where the pipeline plate 11 is located when the ball 5 is closed, and the telescopic pipeline 10 on one side is compressed, thereby opening the internal space of the ball valve, and then the interior of the new high-pressure pipeline ball valve is cleaned.

[0030] In one embodiment, if Figure 2-4 shown.

[0031] The new high-pressure pipeline ball valve provided in this embodiment has four transmission rods 13. One end of the transmission rod 13 passes through the side wall of the first valve body 1 and is fixed to the end of the first valve body 1 through a transmission wheel 16 with a bearing. The other end of the transmission rod 13 passes through the pipeline plate 11 and is fixed to the end of the pipeline plate 11 through an end plate 25 with a bearing.

[0032] In this embodiment, the transmission rods 13 are set to four, which can not only provide sufficient driving force for the movement of the second valve body 2, but also leave space for cleaning operations after opening the inside of the ball valve. Because when cleaning, it is necessary to operate through the space between two adjacent transmission rods 13. If too many transmission rods 13 are set, the operating space will be affected. In this embodiment, the positions of the first flange plate 9 and the first valve body 1 in the supply pipeline are fixed, and the positions of the pipeline plate 11 and the second flange plate 12 in the supply pipeline are also fixed, so the positions of the two ends of the transmission rod 13 are determinable. Only the second valve body 2 and the telescopic pipeline 10 compressed with the movement of the second valve body 2 move laterally.

[0033] In one embodiment, Figure 5-6 shown.

[0034] The new high-pressure pipeline ball valve provided in this embodiment has a contact piece 26 on its sleeve 21, a push rod 82 is located above the contact piece 26 and has a push piece 27 at the end thereof that matches the contact piece 26, a first pressure sensor 81 and the push rod 82 are electrically connected, and when the first pressure sensor 81 detects that the force is greater than the set value, the push rod 82 retracts and pushes the sleeve 21 to move into the first transmission device 8.

[0035] In this embodiment, the specific application scenario is that the interior of the ball valve needs to be opened when it is in a closed state. Correspondingly, the sleeve 21 is disengaged from the adapter 19 and the second rotating rod 20 after the valve stem 7 is rotated into place, that is, when the first pressure sensor 81 detects that the force is greater than the set value, the push rod 82 retracts inward to push the sleeve 21 to move into the first transmission device 8.

[0036] In one embodiment, Figure 4-5 shown.

[0037] The novel high-pressure pipeline ball valve provided in this embodiment has a gear box 28 on its ear plate 3, the end of the valve stem 7 passes through the gear box 28, and the gear box 28 is transmission-connected to the first transmission device 8. The compression spring 22 is sleeved outside the first rotating rod 18.

[0038] In one embodiment, Figure 5-6 shown.

[0039] The new high-pressure pipeline ball valve provided in this embodiment has a groove 32 at the bottom of the first rotating rod 18 and the bottom of the second rotating rod 20, and a block 33 is provided in the sliding sleeve 21 to be inserted into the two grooves 32. After the sliding sleeve 21 moves into the first transmission device 8, the block 33 can be disengaged from the two grooves 32.

[0040] In this embodiment, when the block 33 is inserted into the slot 32 at the bottom of the first rotating rod 18 and the slot 32 at the bottom of the second rotating rod 20, the first rotating rod 18 and the second rotating rod 20 rotate synchronously, and when the block 33 is disengaged from the slot 32 at the bottom of the first rotating rod 18 and the slot 32 at the bottom of the second rotating rod 20, the first rotating rod 18 and the second rotating rod 20 no longer rotate synchronously due to the existence of the adapter 19, that is, the rotation of the second rotating rod 20 is no longer restricted by the first rotating rod 18. In other embodiments, the block 33 may be provided at the bottom of the first rotating rod 18 and the bottom of the second rotating rod 20, and the slot 32 may be provided in the sliding sleeve 21.

[0041] In one embodiment, Figure 5 shown.

[0042] The new high-pressure pipeline ball valve provided in this embodiment has a second transmission device 17 which further includes a sprocket 172 which is transmission-connected to the transmission chain 15, and a third gear 173 which is coaxial with the second gear 171. The second gear 171, the third gear 173 and the sprocket 172 rotate synchronously. The first valve body 1 is further provided with a fourth gear 29 which is located below the third gear 173. The fourth gear 29 is meshed with the third gear 173. The first valve body 1 is further provided with a driving device 30 and a second pressure sensor 31 which extends into the first valve body 1. The driving device 30 is provided with a clutch which enables the fourth gear 29 to be transmission-connected. When the first pressure sensor 81 detects that the force is not greater than the set value and the second pressure sensor 31 detects that the force is greater than the set value, the driving device 30 periodically controls the clutch and the fourth gear 29 to be transmission-connected and drives the transmission rod 13 to rotate through the third gear 173 and the sprocket 172 to make the second valve body 2 approach the side where the first valve body 1 is located.

[0043] In this embodiment, the new high-pressure pipeline ball valve can periodically enhance the sealing performance under normal use, and has better sealing performance than the traditional ball valve passive replacement seal. Specifically, the first pressure sensor 81 and the second pressure sensor 31 cooperate to detect the application scenario of the new high-pressure pipeline ball valve in the normal closed state (excluding the application scenario of opening the inside), that is, when the first pressure sensor 81 detects that the force is not greater than the set value and the second pressure sensor 31 detects that the force is greater than the set value, the drive device 30 controls the clutch and the fourth gear 29 to be connected in transmission (normally the clutch and the fourth gear 29 are disengaged and not connected in transmission), and finally the second valve body 2 is moved closer to the side where the first valve body 1 is located to tighten the contact between the second valve body 2 and the first valve body 1. Because the first valve body 1 is transversely displaced, but it is driven to produce transverse displacement and in a linear drive form, the general principle is close to the effect of tightening four screws, so a good sealing effect can be produced.

[0044] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A new type of high-pressure pipeline ball valve, It is characterized in that The invention comprises a first valve body (1) and a second valve body (2) which are arranged separately, wherein the first valve body (1) is provided with an ear plate (3) extending toward the side where the second valve body (2) is located, and the second valve body (2) is provided with a plate groove (4) which matches the ear plate (3), and the first valve body (1) and the second valve body (2), the ear plate (3) and the plate groove (4) can be tightly connected, and the first valve body (1) and the second valve body (2) jointly form a valve cavity (6) for accommodating a ball (5), and the ball (5) is arranged in the valve cavity (6) through a valve stem (7) connected to the ear plate (3), and the end of the valve stem (7) passes through the first valve body (1) and is transmission-connected to a first transmission device (8) arranged on the first valve body (1); A first flange plate (9) is connected to one side of the first valve body (1), and a second flange plate (12) is connected to one side of the second valve body (2) via a telescopic pipe (10) and a pipe plate (11). The first flange plate (9) and the second flange plate (12) connect and fix the novel high-pressure pipe ball valve as a whole in the supply pipe. The first valve body (1) and the pipe plate (11) are connected via a plurality of transmission rods (13) penetrating the side walls of the first valve body (1) and the second valve body (2) along the axial direction of the first valve body (1) and the second valve body (2). A section of the transmission rod (13) is a screw rod (14) that cooperates with the second valve body (2). A plurality of transmission wheels (16) are provided at one end of the first valve body (1) so that all the transmission rods (13) rotate synchronously under the action of a transmission chain (15). The first valve body (1) is also provided with a second transmission device (17) that is connected to the transmission chain (15). The first transmission device (8) is transmission-connected with a first rotating rod (18), and the first rotating rod (18) is connected to a second rotating rod (20) via a transition piece (19), and the transition piece (19) is formed by connecting two junction pieces (191) that can rotate with each other, and the first rotating rod (18) and the second rotating rod (20) are respectively connected to the two junction pieces (191), and a sliding sleeve (21) covering the transition piece (19) is also sleeved at the connection between the first rotating rod (18) and the second rotating rod (20), and the interior of the sliding sleeve (21) is engaged with the first rotating rod (18) and the second rotating rod (20) to limit the relative rotation of the two, and the sliding sleeve (21) is fixed by a compression spring (22) extending from the first transmission device (8) along the axial direction of the first rotating rod (18), and the first transmission device (8) includes a detection device for detecting the force applied to the valve stem (7) after the valve stem (7) is rotated into position. The first transmission device (8) further comprises a push rod (82) for moving the sleeve (21) axially along the first rotating rod (18) into the first transmission device (8) in response to the first pressure sensor (81); the second rotating rod (20) is provided with a first gear (23) and a hand wheel (24); the second transmission device (17) comprises a second gear (171) for cooperating with the first gear (23); the second rotating rod (20) can bend downward after the restriction of the sleeve (21) is released so that the first gear (23) and the second gear (171) are engaged, thereby rotating the hand wheel (24) through the second transmission device (17) and the transmission rod (13) so that the second valve body (2) can move along the transmission rod (13) to the side where the pipeline plate (11) is located when the ball (5) is closed.

2. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The number of the transmission rods (13) is four, one end of the transmission rod (13) passes through the side wall of the first valve body (1) and is fixed to the end of the first valve body (1) via the transmission wheel (16) with a bearing, and the other end of the transmission rod (13) passes through the pipeline plate (11) and is fixed to the end of the pipeline plate (11) via an end plate (25) with a bearing.

3. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that A plurality of transmission wheels (16) are evenly arranged along the circumferential direction at one end of the first valve body (1).

4. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The sliding sleeve (21) is provided with a contact piece (26), the push rod (82) is located above the contact piece (26) and has a push piece (27) at its end that matches the contact piece (26), the first pressure sensor (81) and the push rod (82) are electrically connected, and when the first pressure sensor (81) detects that the force is greater than a set value, the push rod (82) retracts to push the sliding sleeve (21) to move into the first transmission device (8).

5. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The axial length of the first valve body (1) is smaller than the axial length of the second valve body (2).

6. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that A gear box (28) is provided on the ear plate (3), the end of the valve stem (7) passes through the gear box (28), and the gear box (28) is in transmission connection with the first transmission device (8).

7. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The compression spring (22) is sleeved outside the first rotating rod (18).

8. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The bottom of the first rotating rod (18) and the bottom of the second rotating rod (20) are both provided with a clamping groove (32), and the sliding sleeve (21) is provided with a clamping block (33) that is clamped into the two clamping grooves (32). When the sliding sleeve (21) moves into the first transmission device (8), the clamping block (33) can be disengaged from the two clamping grooves (32).

9. The new high-pressure pipeline ball valve according to claim 1, It is characterized in that The second transmission device (17) further comprises a sprocket (172) transmission-connected to the transmission chain (15) and a third gear (173) coaxial with the second gear (171); the second gear (171), the third gear (173) and the sprocket (172) rotate synchronously; the first valve body (1) is further provided with a fourth gear (29) located below the third gear (173); the fourth gear (29) is meshed with the third gear (173); the first valve body (1) is further provided with a driving device (30) and a second pressure sensor (31) extending into the first valve body (1); the driving device (30) is provided with a clutch capable of enabling the fourth gear (29) to be transmission-connected; When the first pressure sensor (81) detects that the force is not greater than the set value and the second pressure sensor (31) detects that the force is greater than the set value, the driving device (30) periodically controls the transmission connection between the clutch and the fourth gear (29) and drives the transmission rod (13) to rotate through the third gear (173) and the sprocket (172) so that the second valve body (2) approaches the side where the first valve body (1) is located.

10. The new high-pressure pipeline ball valve according to claim 9, It is characterized in that The second gear (171) and the third gear (173) are attached to one spot on the gear shaft.

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