An adjustable docking device for conveying pipeline

Abstract

The present invention belongs to the field of pipeline technology, and in particular to an adjustable docking device for conveying pipelines. According to the existing technical scheme, only two parallel pipelines can be connected. However, in actual use, the two pipelines that need to be docked often need to be angle-adjusted when being connected. Therefore, there are certain limitations when connecting. The following scheme is proposed, which includes a metal bellows, wherein the left end and the right end of the metal bellows are respectively fixedly installed with a first connecting pipe and a second connecting pipe, and the ends of the first connecting pipe and the second connecting pipe that are away from each other are fixedly installed with threaded joints. In the present invention, the metal bellows can be bent by rotating the screw rod, so that the angle between the first connecting pipe and the second connecting pipe can be adjusted. Therefore, when connecting the two pipelines that need to be docked, the angle can be adjusted arbitrarily, so it has good convenience in use.

Description

Technical Field

[0001] The invention relates to the technical field of pipelines, and in particular to an adjustable docking device for conveying pipelines. Background Art

[0002] According to the announcement number: CN216555664U, a pipe docking device is disclosed, the pipe docking device includes a first bracket and a second bracket, the first bracket and the second bracket are arranged oppositely in a first horizontal direction, the first bracket includes a first support plate and a first top plate, the first support plate and the first top plate define a first positioning channel, the second bracket includes a second support plate and a second top plate, the second support plate and the second top plate define a second positioning channel, the first positioning channel and the second positioning channel are axially symmetrical, the length direction of the first positioning channel is consistent with the first horizontal direction, and the length direction of the first positioning channel is consistent with the length direction of the second positioning channel. The pipe docking device of the utility model has the advantages of good alignment effect and high work efficiency.

[0003] The above technical solution can only realize the connection of two parallel pipes, but in actual use, the two pipes that need to be docked often need to adjust the angle when connected, so there are certain limitations when connecting. Therefore, we propose an adjustable docking device for conveying pipes to solve the above problems. Summary of the invention

[0004] Based on the background technology, the existing technical solutions can only connect two parallel pipes, but in actual use, the two pipes that need to be docked often need to adjust the angle when connected, so there are certain limitations when connecting. The present invention proposes an adjustable docking device for conveying pipes.

[0005] The present invention proposes an adjustable docking device for conveying pipelines, comprising a metal bellows, wherein a first connecting pipe and a second connecting pipe are fixedly installed on the left and right ends of the metal bellows respectively, and threaded joints are fixedly installed on the ends of the first connecting pipe and the second connecting pipe that are away from each other, and a connecting block is rotatably connected to the bottom of the first connecting pipe, and a telescopic component is fixedly installed on the right side of the connecting block, and a rectangular ring is fixedly installed on the bottom of the second connecting pipe, and a transmission component is installed in the rectangular ring, and the right side of the telescopic component extends into the rectangular ring and is connected to the transmission component, and a limit component is connected to the transmission component, and the limit component is connected to the bottom inner wall of the rectangular ring.

[0006] By means of the above structure, the driving transmission component can drive the telescopic component to operate, thereby providing a pulling force for the first connecting pipe to move downward. At this time, the metal bellows can be bent, and the angle between the first connecting pipe and the second connecting pipe can be adjusted, so that when two pipes that are not arranged in parallel are connected, the connection can be convenient, thereby increasing the convenience of connection when connecting the pipes.

[0007] Preferably, the telescopic assembly includes a support tube, a nut, a screw and a gear component. The support tube is fixedly installed on the right side of the connecting block, the nut is rotatably connected to the right end of the support tube, the screw passes through the nut and is threadedly connected to the nut, the right end of the screw extends into the rectangular ring and is connected to the transmission assembly, the gear component is respectively connected to the screw and the left side of the rectangular ring, a positioning assembly is installed on the front side of the support tube, and the top of the positioning assembly is connected to the bottom of the first connecting tube.

[0008] Furthermore, when the drive transmission assembly is in operation, the screw rod can be driven to move downward. At this time, the screw rod can be rotated under the transmission action of the gear component. When the screw rod rotates, the first connecting pipe can be driven to rotate downward under the threaded transmission action with the nut.

[0009] Preferably, the gear component includes a fixed rack and a driving gear, the driving gear is fixedly sleeved on the screw rod, and the fixed rack is fixedly installed on the right side of the rectangular ring, and the driving gear is meshed with the fixed rack.

[0010] Furthermore, when the driving gear moves with the screw rod, the screw rod can be driven to rotate under the meshing transmission action of the fixed rack.

[0011] Preferably, the positioning assembly includes a connecting rod, a slide plate, a clamping member, a support plate, a support ring and a braking member. The slide plate is slidably connected to the bottom of the first connecting tube, the top end of the connecting rod is rotatably connected to the slide plate, and the bottom end of the connecting rod is rotatably connected to the front side of the support tube, the support plate is fixedly installed on the front side of the support tube, the support ring is fixedly installed on the top of the support plate, the clamping member is respectively connected to the bottom end of the connecting rod and the top of the support plate, the braking member is installed on the right side of the clamping member, and a positioning hole is opened on the support plate, and the braking member is clamped to the positioning hole.

[0012] Furthermore, when the first connecting tube rotates downward, the angle between the first connecting tube and the supporting tube may change, thereby enabling the connecting rod to rotate. Afterwards, the first connecting tube may be braked by braking the connecting rod.

[0013] Preferably, the clamping component includes a positioning gear, an arc-shaped rack and a mounting rod. The positioning gear is fixedly sleeved on the bottom end of the connecting rod. The mounting rod passes through the supporting ring and is slidingly connected to the inner wall of the supporting ring. The left end of the mounting rod is fixedly connected to the arc-shaped rack, and the arc-shaped rack is movably engaged with the positioning gear. The right end of the mounting rod is connected to the clamping component.

[0014] Furthermore, under the meshing transmission action of the positioning gear and the arc-shaped rack, stable braking of the connecting rod can be achieved to prevent the connecting rod from rotating.

[0015] Preferably, the braking component includes a mounting ring, a clamping rod and a compression spring. The mounting ring is fixedly mounted on the right end of the mounting rod. The clamping rod passes through the mounting ring and is slidably connected to the inner wall of the mounting ring. The clamping rod passes through the positioning hole and is clamped to the inner wall of the positioning hole. The compression spring is sleeved on the clamping rod, and the compression spring is located below the mounting ring. The top and bottom ends of the compression spring are fixedly connected to the bottom of the mounting ring and the clamping rod respectively.

[0016] Furthermore, the mounting rod can be braked by using the clamping rod and the positioning hole to prevent the arc-shaped rack from moving, thereby achieving stable braking of the connecting rod.

[0017] Preferably, the transmission assembly includes a screw rod, a threaded ring, two sliding bars and a rotating ring. The screw rod is rotatably connected in the rectangular ring. The threaded ring is threadedly sleeved on the screw rod, and the right end of the screw rod is rotatably connected to the left side of the threaded ring. The two sliding bars are symmetrically fixed on the left and right bottom of the screw rod, and the rotating ring is sleeved on the screw rod and slidably connected to the two sliding bars respectively, and the rotating ring is connected to the limit assembly.

[0018] Furthermore, the screw rod can be driven to rotate by rotating the rotating ring, and the screw rod can be driven to move downward by the threaded ring, thereby driving the gear component to move.

[0019] Preferably, the limiting assembly includes a movable gear ring, a fixed gear ring and a magnetic attraction component, the movable gear ring is fixedly installed on the bottom of the rotating ring, and the fixed gear ring is fixedly installed on the bottom inner wall of the rectangular ring, the movable gear ring is movably engaged with the fixed gear ring, and the magnetic attraction component is respectively connected to the bottom of the movable gear ring and the bottom inner wall of the rectangular ring.

[0020] Furthermore, the movable gear ring and the fixed gear ring are used for meshing braking, so that the rotating tube can be braked, thereby preventing the screw rod from rotating and braking the screw rod.

[0021] Preferably, the magnetic attraction component includes a first magnet ring and a second magnet ring, and the first magnet ring is fixedly mounted on the bottom of the moving gear ring, the second magnet ring is fixedly mounted on the bottom inner wall of the rectangular ring, and the bottom of the first magnet ring and the top of the second magnet ring are set as N pole and S pole respectively.

[0022] Furthermore, the first magnet ring and the second magnet ring are attracted to each other to limit the position of the rotating ring, thereby enabling the movable gear ring and the fixed gear ring to be stably engaged.

[0023] Preferably, a sealing clamp ring is fixedly sleeved on the first connecting pipe and the second connecting pipe.

[0024] Furthermore, the sealing clamp ring can prevent liquid leakage when the pipeline is connected to the threaded joint.

[0025] The beneficial effects of the present invention are:

[0026] 1. In the present invention, by pushing the rotating ring upward, the movable gear ring and the fixed gear ring are disengaged, so that the screw can be driven to rotate by rotating the rotating ring. When the screw rotates, the threaded ring can be driven to move downward, so that the screw can move downward. When the screw moves downward, the driving gear can be driven to move downward. At this time, since the driving gear and the fixed rack are in a meshing state, the screw can be rotated when the screw moves downward. At this time, under the threaded transmission action of the nut, the support tube can be moved downward and to the left at the same time, so that the metal bellows can be driven to bend through the first connecting tube, so that a certain angle is formed between the first connecting tube and the second connecting tube, and the angle between the first connecting tube and the second connecting tube can be adjusted according to the angle between the two pipes to be connected;

[0027] 2. In the present invention, when the metal bellows is bent, the connecting rod can be rotated. After the angle between the first connecting tube and the second connecting tube is adjusted, the arc-shaped rack can be meshed with the positioning gear by pushing the mounting rod, so that the connecting rod can be braked. After the arc-shaped rack and the positioning gear are meshed and braked, the clamping rod can be made to correspond to the positioning hole. Then the clamping rod can be released. Under the push of the elastic force of the compression spring, the clamping rod can pass through the positioning hole, so that the mounting rod can be positioned, so that the arc-shaped rack and the positioning gear are stably meshed, so that the first connecting tube can be braked and limited by the connecting rod;

[0028] 3. In the present invention, after the angle between the first connecting tube and the second connecting tube is adjusted, the rotating ring can be pushed downward to move the movable gear ring downward and mesh with the fixed gear ring, so that the screw rod can be braked so that the screw rod does not rotate, and the movable gear ring can be prevented from moving at will under the meshing action of the first magnet ring and the second magnet ring, thereby maintaining stable meshing with the fixed gear ring.

[0029] In the present invention, the metal bellows can be bent by rotating the screw rod, so that the angle between the first connecting pipe and the second connecting pipe can be adjusted. Therefore, when connecting two pipes that need to be butt-jointed, the angle can be adjusted arbitrarily, thus having good convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural front view of an adjustable docking device for a conveying pipeline proposed by the present invention;

[0031] Figure 2 The invention provides an adjustable docking device for a conveying pipeline. Figure 1 Schematic diagram of the structure of part A;

[0032] Figure 3 The invention provides an adjustable docking device for a conveying pipeline. Figure 1 Schematic diagram of the structure of part B;

[0033] Figure 4 A front view of a screw rod, a threaded ring and a screw rod connection structure of an adjustable docking device for a conveying pipeline proposed by the present invention;

[0034] Figure 5 The invention provides an adjustable docking device for a conveying pipeline. Figure 4 Schematic diagram of the structure of part C;

[0035] Figure 6 A three-dimensional diagram of a screw rod, a threaded ring and a screw rod connection structure of an adjustable docking device for a conveying pipeline proposed by the present invention;

[0036] Figure 7 A three-dimensional diagram of the support pipe, nut and screw connection structure of an adjustable docking device for conveying pipelines proposed by the present invention.

[0037] In the figure: 1. metal bellows; 2. first connecting pipe; 3. second connecting pipe; 4. threaded joint; 5. sealing clamp ring; 6. connecting block; 7. support pipe; 8. nut; 9. screw; 10. rectangular ring; 11. fixed rack; 12. driving gear; 13. slide plate; 14. connecting rod; 15. positioning gear; 16. support plate; 17. support ring; 18. mounting rod; 19. mounting ring; 20. clamping rod; 21. compression spring; 22. arc rack; 23. screw rod; 24. threaded ring; 25. rotating ring; 26. slide bar; 27. movable gear ring; 28. fixed gear ring; 29. ​​first magnet ring; 30. second magnet ring. DETAILED DESCRIPTION

[0038] The present invention will be further explained below in conjunction with specific embodiments.

[0039] Example

[0040] refer to Figure 1-7 In this embodiment, an adjustable docking device for a conveying pipeline is proposed, including a metal bellows 1, a first connecting pipe 2 and a second connecting pipe 3 are fixedly installed on the left and right ends of the metal bellows 1, respectively, and a threaded joint 4 is fixedly installed on the ends of the first connecting pipe 2 and the second connecting pipe 3 that are away from each other, the bottom of the first connecting pipe 2 is rotatably connected to a connecting block 6, and a telescopic component is fixedly installed on the right side of the connecting block 6, and a rectangular ring 10 is fixedly installed on the bottom of the second connecting pipe 3, and a transmission component is installed in the rectangular ring 10, and the right side of the telescopic component extends into the rectangular ring 10 and is connected to the transmission component, and a limit component is connected to the transmission component, and the limit component is connected to the bottom inner wall of the rectangular ring 10.

[0041] By means of the above structure, the driving transmission component can drive the telescopic component to operate, thereby providing a pulling force for the first connecting pipe 2 to move downward. At this time, the metal bellows 1 can be bent, and the angle between the first connecting pipe 2 and the second connecting pipe 3 can be adjusted, so that when two pipes that are not arranged in parallel are connected, the connection can be convenient, thereby increasing the convenience of connection when connecting the pipes.

[0042] In this embodiment, the telescopic assembly includes a support tube 7, a nut 8, a screw rod 9 and a gear component. The support tube 7 is fixedly installed on the right side of the connecting block 6. The nut 8 is rotatably connected to the right end of the support tube 7. The screw rod 9 passes through the nut 8 and is threadedly connected to the nut 8. The right end of the screw rod 9 extends into the rectangular ring 10 and is connected to the transmission assembly. The gear component is respectively connected to the left side of the screw rod 9 and the rectangular ring 10. A positioning assembly is installed on the front side of the support tube 7, and the top of the positioning assembly is connected to the bottom of the first connecting tube 2.

[0043] When the drive transmission assembly is running, the screw rod 9 can be driven to move downward. At this time, the screw rod 9 can be rotated under the transmission action of the gear component. When the screw rod 9 rotates, it can drive the first connecting pipe 2 to rotate downward under the threaded transmission action with the nut 8.

[0044] In this embodiment, the gear member includes a fixed rack 11 and a driving gear 12 . The driving gear 12 is fixedly sleeved on the screw rod 9 , and the fixed rack 11 is fixedly installed on the right side of the rectangular ring 10 . The driving gear 12 is meshed with the fixed rack 11 .

[0045] When the driving gear 12 moves with the screw rod 9 , the screw rod 9 can be driven to rotate under the meshing transmission action of the fixed rack 11 .

[0046] In this embodiment, the positioning assembly includes a connecting rod 14, a slide plate 13, a clamping member, a support plate 16, a support ring 17 and a braking member. The slide plate 13 is slidably connected to the bottom of the first connecting tube 2, the top end of the connecting rod 14 is rotatably connected to the slide plate 13, and the bottom end of the connecting rod 14 is rotatably connected to the front side of the support tube 7, the support plate 16 is fixedly installed on the front side of the support tube 7, the support ring 17 is fixedly installed on the top of the support plate 16, the clamping member is respectively connected to the bottom end of the connecting rod 14 and the top of the support plate 16, the braking member is installed on the right side of the clamping member, and a positioning hole is opened on the support plate 16, and the braking member is clamped with the positioning hole.

[0047] When the first connecting tube 2 rotates downward, the angle between the first connecting tube 2 and the supporting tube 7 may change, and the connecting rod 14 may be rotated at this time. Then, the first connecting tube 2 may be braked by braking the connecting rod 14 .

[0048] In this embodiment, the clamping component includes a positioning gear 15, an arc-shaped rack 22 and a mounting rod 18. The positioning gear 15 is fixedly sleeved on the bottom end of the connecting rod 14. The mounting rod 18 passes through the support ring 17 and is slidingly connected to the inner wall of the support ring 17. The left end of the mounting rod 18 is fixedly connected to the arc-shaped rack 22, and the arc-shaped rack 22 is movably engaged with the positioning gear 15. The right end of the mounting rod 18 is connected to the clamping component.

[0049] Under the meshing transmission action of the positioning gear 15 and the arc-shaped rack 22, the connecting rod 14 can be stably braked to prevent the connecting rod 14 from rotating.

[0050] In this embodiment, the braking component includes a mounting ring 19, a clamping rod 20 and a compression spring 21. The mounting ring 19 is fixedly installed on the right end of the mounting rod 18. The clamping rod 20 passes through the mounting ring 19 and is slidably connected to the inner wall of the mounting ring 19. The clamping rod 20 passes through the positioning hole and is clamped with the inner wall of the positioning hole. The compression spring 21 is sleeved on the clamping rod 20, and the compression spring 21 is located below the mounting ring 19. The top and bottom ends of the compression spring 21 are fixedly connected to the bottom of the mounting ring 19 and the clamping rod 20 respectively.

[0051] By using the clamping rod 20 and the positioning hole for clamping, the mounting rod 18 can be braked, thereby preventing the arc-shaped rack 22 from moving, and achieving stable braking of the connecting rod 14.

[0052] In this embodiment, the transmission assembly includes a screw rod 23, a threaded ring 24, two slide bars 26 and a rotating ring 25. The screw rod 23 is rotatably connected in the rectangular ring 10, the threaded ring 24 is threadedly sleeved on the screw rod 23, and the right end of the screw rod 9 is rotatably connected to the left side of the threaded ring 24. The two slide bars 26 are symmetrically fixed on the left and right bottom of the screw rod 23, and the rotating ring 25 is sleeved on the screw rod 23 and is slidably connected to the two slide bars 26 respectively, and the rotating ring 25 is connected to the limit assembly.

[0053] The screw rod 23 can be driven to rotate by rotating the rotating ring 25 , and the screw rod 9 can be driven to move downward by the threaded ring 24 , thereby driving the gear component to move.

[0054] In this embodiment, the limiting assembly includes a movable gear ring 27, a fixed gear ring 28 and a magnetic attraction component. The movable gear ring 27 is fixedly installed on the bottom of the rotating ring 25, and the fixed gear ring 28 is fixedly installed on the bottom inner wall of the rectangular ring 10. The movable gear ring 27 is movably engaged with the fixed gear ring 28, and the magnetic attraction component is respectively connected to the bottom of the movable gear ring 27 and the bottom inner wall of the rectangular ring 10.

[0055] The movable toothed ring 27 and the fixed toothed ring 28 are used for meshing braking, so that the rotating tube 26 can be braked, thereby preventing the screw rod 23 from rotating and braking the screw rod 9.

[0056] In this embodiment, the magnetic attraction component includes a first magnet ring 29 and a second magnet ring 30, and the first magnet ring 29 is fixedly installed on the bottom of the moving gear ring 27, and the second magnet ring 30 is fixedly installed on the bottom inner wall of the rectangular ring 10, and the bottom of the first magnet ring 29 and the top of the second magnet ring 30 are set as N pole and S pole respectively.

[0057] The first magnet ring 29 and the second magnet ring 30 are attracted to each other to limit the position of the rotating ring 25, so that the movable gear ring 27 and the fixed gear ring 28 can be stably meshed.

[0058] In this embodiment, a sealing clamp ring 5 is fixedly sleeved on the first connecting pipe 2 and the second connecting pipe 3 .

[0059] The sealing clamp ring 5 can prevent liquid leakage when the pipeline is connected to the threaded joint 4.

[0060] In this embodiment, by pushing the rotating ring 25 upward, the movable gear ring 27 and the fixed gear ring 28 are disengaged, so that the screw rod 23 can be rotated by rotating the rotating ring 25. When the screw rod 23 rotates, the threaded ring 24 can be driven to move downward, so that the screw rod 9 can move downward. When the screw rod 9 moves downward, the driving gear 12 can be driven to move downward. At this time, since the driving gear 12 and the fixed rack 11 are in a meshing state, the screw rod 9 can be rotated when the screw rod 9 moves downward. At this time, under the threaded transmission action of the nut 8, the support tube 7 can be moved downward and to the left at the same time, so that the metal bellows 1 can be bent through the first connecting tube 2, so that a certain angle is formed between the first connecting tube 2 and the second connecting tube 3, and the angle between the first connecting tube 2 and the second connecting tube 3 can be adjusted according to the angle between the two pipes that need to be connected.

[0061] When the metal bellows 1 is bent, the connecting rod 14 can be rotated. After the angle between the first connecting tube 2 and the second connecting tube 3 is adjusted, the arc-shaped rack 22 can be meshed with the positioning gear 15 by pushing the mounting rod 18, so that the connecting rod 14 can be braked. After the arc-shaped rack 22 and the positioning gear 15 are meshed and braked, the clamping rod 20 can be made to correspond to the positioning hole. Then the clamping rod 20 can be released. Under the push of the elastic force of the compression spring 21, the clamping rod 20 can pass through the positioning hole, so that the mounting rod 18 can be positioned, so that the arc-shaped rack 22 is stably meshed with the positioning gear 15, so that The first connecting tube 2 is braked and limited by the connecting rod 14. After the angle between the first connecting tube 2 and the second connecting tube 3 is adjusted, the rotating ring 25 can be pushed downward to move the movable gear ring 27 downward and mesh with the fixed gear ring 28, so that the screw rod 23 can be braked so that the screw rod 23 does not rotate. Under the meshing action of the first magnet ring 29 and the second magnet ring 30, the movable gear ring 27 will not move at will and maintain stable meshing with the fixed gear ring 28. Therefore, when connecting two pipes that need to be docked, the angle can be adjusted arbitrarily, so it has good convenience of use.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable docking device for a conveying pipeline, comprising a metal bellows (1), characterized in that: The left and right ends of the metal bellows (1) are respectively fixedly mounted with a first connecting tube (2) and a second connecting tube (3); the ends of the first connecting tube (2) and the second connecting tube (3) that are away from each other are both fixedly mounted with a threaded joint (4); the bottom of the first connecting tube (2) is rotatably connected with a connecting block (6); the right side of the connecting block (6) is fixedly mounted with a telescopic assembly; the bottom of the second connecting tube (3) is fixedly mounted with a rectangular ring (10); a transmission assembly is mounted inside the rectangular ring (10); the right side of the telescopic assembly extends into the rectangular ring (10) and is connected to the transmission assembly; a limit assembly is connected to the transmission assembly; the limit assembly is connected to the bottom inner wall of the rectangular ring (10); The telescopic assembly comprises a support tube (7), a nut (8), a screw rod (9) and a gear member. The support tube (7) is fixedly mounted on the right side of the connection block (6). The nut (8) is rotatably connected to the right end of the support tube (7). The screw rod (9) passes through the nut (8) and is threadedly connected to the nut (8). The right end of the screw rod (9) extends into the rectangular ring (10) and is connected to the transmission assembly. The gear member is respectively connected to the left side of the screw rod (9) and the rectangular ring (10). A positioning assembly is installed on the front side of the support tube (7), and the top of the positioning assembly is connected to the bottom of the first connection tube (2). The transmission assembly comprises a screw rod (23), a threaded ring (24), two slide bars (26) and a rotating ring (25), the screw rod (23) is rotatably connected in the rectangular ring (10), the threaded ring (24) is threadedly sleeved on the screw rod (23), and the right end of the screw rod (9) is rotatably connected to the left side of the threaded ring (24), the two slide bars (26) are symmetrically fixedly installed on the left bottom and the right bottom of the screw rod (23), and the rotating ring (25) is sleeved on the screw rod (23) and slidably connected to the two slide bars (26) respectively, and the rotating ring (25) is connected to the limit assembly; The limiting assembly comprises a movable gear ring (27), a fixed gear ring (28) and a magnetic attraction component. The movable gear ring (27) is fixedly mounted on the bottom of the rotating ring (25), and the fixed gear ring (28) is fixedly mounted on the bottom inner wall of the rectangular ring (10). The movable gear ring (27) and the fixed gear ring (28) are movably engaged with each other, and the magnetic attraction component is respectively connected to the bottom of the movable gear ring (27) and the bottom inner wall of the rectangular ring (10).

2. The adjustable docking device for conveying pipelines according to claim 1, characterized in that: The gear component comprises a fixed rack (11) and a driving gear (12); the driving gear (12) is fixedly sleeved on the screw rod (9), and the fixed rack (11) is fixedly installed on the right side of the rectangular ring (10); the driving gear (12) is meshed with the fixed rack (11).

3. The adjustable docking device for conveying pipelines according to claim 1, characterized in that: The positioning assembly comprises a connecting rod (14), a slide plate (13), a clamping member, a support plate (16), a support ring (17) and a braking member, wherein the slide plate (13) is slidably connected to the bottom of the first connecting tube (2), the top end of the connecting rod (14) is rotatably connected to the slide plate (13), and the bottom end of the connecting rod (14) is rotatably connected to the front side of the support tube (7), the support plate (16) is fixedly mounted on the front side of the support tube (7), the support ring (17) is fixedly mounted on the top of the support plate (16), the clamping member is respectively connected to the bottom end of the connecting rod (14) and the top of the support plate (16), the braking member is mounted on the right side of the clamping member, and a positioning hole is provided on the support plate (16), and the braking member is clamped to the positioning hole.

4. The adjustable docking device for conveying pipelines according to claim 3, characterized in that: The clamping component comprises a positioning gear (15), an arc-shaped rack (22) and a mounting rod (18); the positioning gear (15) is fixedly sleeved on the bottom end of the connecting rod (14); the mounting rod (18) passes through the supporting ring (17) and is slidably connected to the inner wall of the supporting ring (17); the left end of the mounting rod (18) is fixedly connected to the arc-shaped rack (22); the arc-shaped rack (22) is movably meshed with the positioning gear (15); and the right end of the mounting rod (18) is connected to the clamping component.

5. The adjustable docking device for conveying pipelines according to claim 3, characterized in that: The braking component comprises a mounting ring (19), a clamping rod (20) and a compression spring (21); the mounting ring (19) is fixedly mounted on the right end of the mounting rod (18); the clamping rod (20) passes through the mounting ring (19) and is slidably connected to the inner wall of the mounting ring (19); the clamping rod (20) passes through the positioning hole and is clamped with the inner wall of the positioning hole; the compression spring (21) is sleeved on the clamping rod (20), and the compression spring (21) is located below the mounting ring (19); the top end and the bottom end of the compression spring (21) are respectively fixedly connected to the bottom of the mounting ring (19) and the clamping rod (20).

6. The adjustable docking device for conveying pipelines according to claim 1, characterized in that: The magnetic attraction component comprises a first magnet ring (29) and a second magnet ring (30), wherein the first magnet ring (29) is fixedly mounted on the bottom of the moving gear ring (27), and the second magnet ring (30) is fixedly mounted on the bottom inner wall of the rectangular ring (10), and the bottom of the first magnet ring (29) and the top of the second magnet ring (30) are respectively set as an N pole and an S pole.

7. The adjustable docking device for conveying pipelines according to claim 1, characterized in that: The first connecting pipe (2) and the second connecting pipe (3) are both fixedly sleeved with sealing clamp rings (5).

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