Cable conduit threading traction device

Abstract

The utility model relates to the field of cable pipelines, in particular to a cable pipeline threading traction device which comprises a driving assembly and a fixing assembly, the driving assembly comprises a mounting cylinder, a driving seat, a motor, a rotating shaft and a driving wheel, a mounting hole is formed in the circumferential wall of the mounting cylinder, the driving seat is slidably arranged in the mounting hole, and the driving seat is slidably arranged in the mounting hole. The motor is arranged in the driving seat, the rotating shaft is rotatably inserted into the end of the driving seat and located outside the mounting cylinder, the driving wheel is coaxially and fixedly connected to the end of the rotating shaft, the motor is in meshed connection with the rotating shaft through a first oblique bevel gear and a second oblique bevel gear, and the fixing assembly is arranged in the mounting cylinder. And the effects of quickly and conveniently arranging the cable in the buried pipeline in a penetrating manner and improving the construction efficiency are achieved.

Description

Technical Field

[0001] The present application relates to the field of cable ducts, and in particular to a cable duct wire threading and traction device. Background Art

[0002] Currently, when carrying out the decoration and electrical system installation of residential houses or commercial buildings, in order to maintain the beauty and neatness of the indoor space, it is usually chosen to lay power lines, telephone lines, network lines, TV signal lines, and audio system lines through concealed pipes. This method involves pre-setting pipes in walls, floors, or ceilings, and then cleverly hiding these lines in the pipes, thus avoiding the exposure of the lines, not only enhancing the beauty of the interior, but also making the living or working environment more orderly and safe.

[0003] After the existing concealed pipes are buried, when threading cables into the concealed pipes, workers manually thread the cables into the concealed pipes, or use iron wires pre-set in the concealed pipes to thread the cables. One end of the iron wire is fixed to the end of the cable, and the cable is threaded into the concealed pipe by pulling the iron wire.

[0004] The above existing technical solutions have the following defects: when using manual labor or iron wires to thread cables, friction will occur between the outer packaging of the cable and the inner wall of the pipe, and the end of the cable is easily stuck in the pipe or the iron wire is disconnected from the electric wire. At this time, it is necessary to chisel the wall for treatment, which wastes time and reduces the construction efficiency. Summary of the Utility Model

[0005] In order to quickly and conveniently thread cables into the buried pipes and improve the construction efficiency, the present application provides a cable duct wire threading and traction device.

[0006] The above technical objectives of the present application are achieved through the following technical solutions:

[0007] A cable duct wire threading and traction device includes a driving component and a fixing component. The driving component includes an installation cylinder, a driving seat, a motor, a rotating shaft, and a driving wheel. An installation hole is provided on the peripheral wall of the installation cylinder. The driving seat is slidably arranged in the installation hole. The motor is arranged in the driving seat. The rotating shaft is rotatably inserted at the end of the driving seat and located outside the installation cylinder. The driving wheel is coaxially fixed to the end of the rotating shaft. The motor and the rotating shaft are meshed and connected through a first bevel gear and a second bevel gear. The fixing component is arranged in the installation cylinder.

[0008] By adopting the above technical solution, by setting a driving component and a fixing component, the driving component includes an installation cylinder, a driving seat, a motor, a rotating shaft and a driving wheel. The motor drives the rotating shaft to rotate, causing the driving wheel to rotate. The circumferential wall of the driving wheel can fit against the inner wall of the pipeline, enabling the driving component to drive the traction device to move inside the pipeline. The fixing component can clamp and fix the cable, and the driving component quickly and conveniently pulls the cable fixed by the fixing component through the pipeline buried in the wall. Compared with using iron wire to thread the cable through the pipeline, the construction efficiency is higher.

[0009] Optionally, a first connecting plate is fixedly connected to the end face of the driving seat away from the rotating shaft. The driving component further includes a first spring, and the first spring is arranged between the first connecting plate and the inner wall of the installation cylinder.

[0010] By adopting the above technical solution, by setting the first spring, when pulling and threading the cable into the pipeline, the driving wheel can always fit against the inner wall of the pipeline, and at the same time, the traction device can perform cable traction threading for pipelines with different diameters.

[0011] Optionally, a sliding hole is formed in the circumferential wall of the installation cylinder. The driving component further includes a sliding rod and an auxiliary wheel. The sliding rod is slidably arranged in the sliding hole, and the auxiliary wheel is hinged to the end of the sliding rod.

[0012] By adopting the above technical solution, by setting the auxiliary wheel and the sliding rod, when the traction device is pulling and threading the cable, it will not shake, reducing the wear of the outer packaging of the cable.

[0013] Optionally, a second connecting plate is fixedly connected to the end face of the sliding rod away from the auxiliary wheel. The driving component further includes a second spring, and the second spring is arranged between the second connecting plate and the inner wall of the installation cylinder.

[0014] By adopting the above technical solution, by setting the second spring, the auxiliary wheel can always fit against the inner wall of the installation cylinder when pulling and threading the cable, so that the traction device will not shake when pulling and threading the cable, reducing the wear of the outer packaging of the cable.

[0015] Optionally, the driving component further includes a partition plate, and the partition plate is arranged in the installation cylinder between the installation hole and the sliding hole.

[0016] By adopting the above technical solution, by setting the partition plate, it can be avoided that when clamping and pulling the cable, the cable contacts the driving seat, and the sliding driving seat damages the cable.

[0017] Optionally, the fixing component includes a clamping seat, a limiting member, a rotating plate, a clamping member, a driving rod and a fixing plate. The clamping seat is rotatably arranged in the installation cylinder. The limiting member is fixedly connected to the surface of the clamping seat. The rotating plate is rotatably arranged on the surface of the clamping member. The clamping member is hinged to the plate surface of the rotating plate. One end of the driving rod is fixedly connected to the peripheral wall of the clamping member. The fixing plate is arranged on the side of the clamping member away from the rotating plate and is hinged to the clamping member. The fixing plate is fixedly connected to the rotating plate. A second sliding groove is formed on the surface of the limiting member away from the clamping seat. The end of the driving rod away from the clamping member is slidably arranged in the second sliding groove.

[0018] By adopting the above technical solution, by providing a support plate, an installation table, a clamping seat, a limiting member, a rotating plate, a clamping member, a driving rod and a fixing plate, the limiting member can fix the rotating plate, the clamping member and the fixing plate. The end of the driving rod slides in the second sliding groove. During the process of rotating the rotating plate and the fixing plate, since the hinge points of the clamping member with the fixing plate and the rotating plate deviate from the center of the surface of the clamping member, as the end of the sliding member slides, the clamping member can be driven to move towards the axis of the rotating plate, and the clamping member can clamp and fix the cable, which is convenient for threading the cable into the pipeline and avoids the wire separating from the cable when using a wire to thread the cable, improving work efficiency.

[0019] Optionally, a receiving groove is formed on the surface of the limiting member close to the rotating plate. The rotating plate is adapted to the receiving groove and is slidably inserted into the receiving groove.

[0020] By adopting the above technical solution, by providing the limiting member and the receiving groove, the rotating plate can be fixed to prevent it from detaching from the clamping seat during rotation.

[0021] Optionally, an annular sliding groove is formed on the inner wall of the installation cylinder. The clamping seat is slidably arranged in the annular sliding groove.

[0022] By adopting the above technical solution, the clamping seat is slidably arranged in the annular sliding groove, which can prevent the traction device from rotating itself when threading the cable into the pipeline, and avoid damage to the cable caused by the cable rotating with the traction device.

[0023] Optionally, a fixing groove is formed on the plate surface of the clamping seat. The fixing component further includes a fixing column. One end of the fixing column is fixedly connected to the fixing plate, and the other end is slidably arranged in the fixing groove.

[0024] By adopting the above technical solution, by providing the fixing groove, the rotation angle of the fixing plate and the rotating plate can be limited to avoid damaging the cable due to excessive clamping.

[0025] Optionally, the fixing component further includes a third spring. The third spring is arranged in the fixing groove. One end of the third spring is fixedly connected to the end of the fixing groove, and the other end is fixedly connected to the peripheral wall of the end of the fixing column.

[0026] By adopting the above technical solution, by arranging the third spring, when the cable is threaded into the pipeline by the traction device, the fixing component can always clamp the cable to prevent the cable from detaching from the traction device.

[0027] In summary, the present application has the following technical effects:

[0028] 1. By arranging the driving component and the fixing component, the driving component can drive the traction device to move in the pipeline, the fixing component can clamp and fix the cable, and the driving component can quickly and conveniently draw and thread the cable fixed by the fixing component into the pipeline buried in the wall. Compared with threading the cable into the pipeline using iron wire, the construction efficiency is higher;

[0029] 2. By arranging the first spring, when the cable is drawn and threaded into the pipeline, the driving wheel can always be in contact with the inner wall of the pipeline, and at the same time, the traction device can draw and thread the cable through pipelines with different diameters;

[0030] 3. By arranging the support plate, the mounting table, the clamping seat, the limiting member, the rotating plate, the clamping member, the driving rod and the fixing plate, the cable can be clamped and fixed, which is convenient for threading the cable into the pipeline, and can prevent the iron wire from detaching from the cable when using the iron wire to thread the cable, thus improving the work efficiency. Brief Description of the Drawings

[0031] Figure 1 is the external shape structure diagram of the present application;

[0032] Figure 2 is the structure diagram inside the mounting cylinder of the present application;

[0033] Figure 3 is the prominent structure diagram of the driving seat, the rotating shaft, the driving wheel and the first spring of the present application

[0034] Figure 4 is the prominent structure diagram of the inside of the mounting cylinder and the fixing component of the present application.

[0035] Description of the Reference Numerals: 1. Driving Component; 11. Mounting Cylinder; 111. Mounting Hole; 112. Sliding Hole; 113. Annular Chute; 12. Driving Seat; 121. Motor; 122. Rotating Shaft; 13. Driving Wheel; 14. First Spring; 15. Partition Plate; 16. Power Supply; 17. Sliding Rod; 18. Auxiliary Wheel; 19. Second Spring; 2. Fixing Component; 21. Clamping Seat; 211. Fixing Groove; 22. Limiting Member; 221. Accommodating Groove; 222. Sliding Groove; 23. Rotating Plate; 24. Clamping Member; 25. Hinge Column; 26. Driving Rod; 27. Fixing Plate; 28. Fixing Column; 29. Third Spring. Detailed Description of the Embodiment

[0036] The present application will be further described in detail below with reference to the accompanying drawings.

[0037] An embodiment of the present application discloses a cable pipeline threading traction device. Referring to Figure 1 and Figure 2 , the traction device includes a driving component 1 and a fixing component 2. The driving component 1 can quickly and conveniently traction and thread the cable fixed by the fixing component 2 into the pipeline buried in the wall, improving the construction efficiency.

[0038] Referring to Figure 1 , the driving component 1 includes an installation cylinder 11 and a driving seat 12. The installation cylinder 11 is a cylinder, one end of the installation cylinder 11 is closed, and the surface of the closed end of the installation cylinder 11 is processed to form a protruding spherical surface. An installation hole 111 is provided on the peripheral wall of the installation cylinder 11 near the closed end. The installation hole 111 communicates with the inside and outside of the installation cylinder 11. The driving seat 12 is slidably arranged in the installation hole 111. The driving seat 12 is a square cylinder, both ends of the driving seat 12 are closed, the outer wall of the driving seat 12 is adapted to the installation hole 111 and is slidably inserted into the installation hole 111. There are three driving seats 12, and the three driving seats 12 are equally angularly distributed on the peripheral wall of the installation cylinder 11 with the axis of the installation cylinder 11 as the center. One end of the driving seat 12 is centripetal, and the length direction of the driving seat 12 is perpendicular to the axis of the installation cylinder 11.

[0039] Combined with Figure 2 and Figure 3 , the driving component 1 further includes a motor 121 and a rotating shaft 122. The motor 121 is arranged inside the driving seat 12. The housing of the motor 121 is close to the end of the driving seat 12 located inside the installation cylinder 11. The axis of the output shaft of the motor 121 is parallel to the length direction of the driving seat 12. A first bevel gear is coaxially fixed to the end of the output shaft of the motor 121, and the first bevel gear is spaced from the inner wall of the driving seat 12. The rotating shaft 122 is arranged on the driving seat 12 and is located outside the installation cylinder 11. The rotating shaft 122 is rotatably inserted into the ends of the opposite two side walls of the driving seat 12. The axis of the rotating shaft 122 is perpendicular to the side wall of the driving seat 12, and the axis of the rotating shaft 122 is perpendicular to the axis of the installation cylinder 11. The rotating shaft 122 is hinged to the side wall of the driving seat 12.

[0040] Combined with Figure 2 and Figure 3, the driving assembly 1 further includes a driving wheel 13 and a first spring 14. A second bevel gear is fixedly connected to the peripheral wall of the rotating shaft 122 inside the driving seat 12. The second bevel gear is coaxially fixedly connected to the rotating shaft 122. The second bevel gear is arranged at an interval from the inner wall of the driving seat 12. The second bevel gear meshes with the first bevel gear. The first bevel gear and the second bevel gear can enable the motor 121 to drive the rotating shaft 122 to rotate. The driving wheels 13 are arranged at both ends of the rotating shaft 122 and are coaxially fixedly connected to the rotating shaft 122. A first connecting plate is fixedly connected to the end surface of the driving seat 12 inside the mounting cylinder 11. The plate surface of the first connecting plate is perpendicular to the length direction of the driving seat 12, and the plate surface of the first connecting plate is larger than the end surface of the driving seat 12. The first spring 14 is arranged between the first connecting plate and the inner wall of the mounting cylinder 11. One end of the first spring 14 is fixedly connected to the plate surface of the first connecting plate that abuts against the driving seat 12, and the other end is fixedly connected to the inner wall of the mounting cylinder 11 beside the mounting hole 111. The first spring 14 is arranged at an interval from the side wall of the driving seat 12. When pulling the cable through the pipe, the first spring 14 can make the driving wheel 13 always fit against the inner wall of the pipe, and at the same time enable the traction device to perform cable pulling through pipes with different diameters.

[0041] Combined with Figure 2 and Figure 3 , the driving assembly 1 further includes a power source 16. A partition plate 15 is arranged in the middle of the inner wall of the mounting cylinder 11 in the length direction. The peripheral wall of the partition plate 15 is fixedly connected to the inner peripheral wall of the mounting cylinder 11. The axis of the partition plate 15 coincides with the axis of the mounting cylinder 11. The partition plate 15 is located on the side of the driving seat 12 away from the closed end of the mounting cylinder 11 and is arranged at an interval from the driving seat 12. The power source 16 is fixedly connected to the plate surface of the partition plate 15 opposite to the closed section of the mounting cylinder 11. The power source 16 is electrically connected to the motor 121 located inside the driving seat 12 to provide power for the motor 121. The outer surface of the power source 16 is arranged at an interval from both the first spring 14 and the first connecting plate.

[0042] Combined with Figure 2 and Figure 4, the driving component 1 further includes a sliding rod 17, an auxiliary wheel 18 and a second spring 19. A sliding hole 112 is formed in the peripheral wall of the mounting cylinder 11. The sliding hole 112 communicates with the inside and outside of the mounting cylinder 11, and the sliding hole 112 is formed on the side of the partition plate 15 away from the closed end of the mounting cylinder 11. The sliding rod 17 is slidably arranged in the sliding hole 112. The sliding rod 17 is a square rod and is adapted to the sliding hole 112. There are three sliding rods 17, and the three sliding rods 17 are equally angularly distributed around the axis of the mounting cylinder 11 on the peripheral wall of the mounting cylinder 11. The length directions of the three sliding rods 17 are all perpendicular to the axis of the mounting cylinder 11 and all pass through the axis of the mounting cylinder 11. The auxiliary wheel 18 is arranged at the end of the side wall of the sliding rod 17 and is located outside the mounting cylinder 11. The auxiliary wheel 18 is hinged to the end of the side wall of the sliding rod 17. The axis of the auxiliary wheel 18 is perpendicular to the side wall of the sliding rod 17 and perpendicular to the axis of the mounting cylinder 11. A second connecting plate is fixedly connected to the end surface of the sliding rod 17 located inside the mounting cylinder 11, and the plate surface of the second connecting plate is larger than the end surface of the sliding rod 17. The second spring 19 is arranged between the second connecting plate and the inner wall of the mounting cylinder 11. One end of the second spring 19 is fixedly connected to the plate surface of the second connecting plate that fits the end surface of the sliding rod 17, and the other end is fixedly connected to the inner wall of the mounting cylinder 11. The second spring 19 can make the auxiliary wheel 18 always fit the inner wall of the mounting cylinder 11 when pulling and threading the cable, and the auxiliary wheel 18 can prevent the pulling device from shaking when pulling and threading the cable, reducing the wear of the outer package of the cable.

[0043] Combined with Figure 2 and Figure 4 , the fixing component 2 includes a clamping seat 21 and a limiting member 22. A circular sliding groove 113 is formed in the inner wall of the mounting cylinder 11. The axis of the circular sliding groove 113 coincides with the axis of the mounting cylinder 11. The circular sliding groove 113 and the sliding hole 112 are spaced apart and are located on the side of the sliding hole 112 away from the partition plate 15. The clamping seat 21 is rotatably arranged in the mounting cylinder 11. The clamping seat 21 is a circular metal plate. The clamping seat 21 is adapted to the circular sliding groove 113 and is slidably arranged in the circular sliding groove. The clamping seat 21 is coaxially arranged with the mounting cylinder 11. The limiting member 22 is fixedly connected to the surface of the clamping seat 21 away from the partition plate 15. The limiting member 22 is a square block. There are three limiting members 22, and the three limiting members 22 are equally angularly distributed around the axis of the clamping seat 21 on the surface of the clamping seat 21. The limiting block is spaced apart from the inner wall of the mounting cylinder 11.

[0044] Combined with Figure 2 and Figure 4The fixing assembly 2 further includes a rotating plate 23. A receiving groove 221 is provided on the side wall of the limiting member 22 near the axis of the clamping seat 21. The receiving groove 221 is provided with an opening on the surface of the limiting member 22 that is in contact with the clamping seat 21. The rotating plate 23 is rotatably arranged between the three limiting members 22. The rotating plate 23 is an annular metal plate. The axis of the rotating plate 23 coincides with the axis of the clamping seat 21. The surface of the rotating plate 23 is in contact with the surface of the clamping seat 21. The rotating plate 23 is adapted to the receiving groove 221 and the rotating plate 23 is slidably arranged in the receiving groove 221. The peripheral wall of the axis rotating plate 23 is in contact with the bottom of the receiving groove 221. The limiting member 22 and the receiving groove 221 provided on the limiting member 22 can prevent the rotating plate 23 from being separated from the clamping seat 21 during the rotation process.

[0045] Combine Figure 2 and Figure 4 The fixing assembly 2 also includes a clamping member 24, a hinged column 25, and a fixed plate 27. The clamping member 24 is provided on the surface of the rotating plate 23 away from the clamping seat 21. The clamping member 24 is a disc, and the surface of the clamping member 24 is parallel to the surface of the rotating plate 23. A driving rod 26 is fixedly connected to the peripheral wall of the clamping member 24, and the length direction of the driving rod 26 is perpendicular to the cross-section of the peripheral wall of the clamping member 24. The hinged column 25 penetrates the clamping member 24 and is fixed thereto. The length direction of the hinged column 25 is perpendicular to the surface of the clamping member 24. The position where the hinged column 25 penetrates the surface of the clamping member 24 deviates from the center of the surface and is close to the driving rod 26. The hinged column 25 penetrates the rotating plate 23 and is hinged to the rotating plate 23. There are three clamping members 24 and three hinged columns 25. The three clamping members 24 and hinged columns 25 are distributed at equal angles on the surface of the rotating plate 23 with the axis of the rotating plate 23 as the center.

[0046] Combine Figure 2 and Figure 4 The fixed plate 27 is arranged on the side of the clamping member 24 away from the rotating plate 23, and the end of the hinge column 25 away from the rotating plate 23 penetrates the fixed plate 27 and is hinged to the fixed plate 27. The fixed plate 27 is a ring-shaped metal plate, and the axis of the fixed plate 27 coincides with the axis of the rotating plate 23. The edges of the fixed plate 27 opposite to the rotating plate 23 are integrally processed to form fixed legs. There are three fixed legs, and the three fixed legs are distributed at equal angles on the surface of the fixed plate 27 with the axis of the fixed plate 27 as the center of the circle. The fixed legs are spaced apart from the clamping member 24, and the end faces of the fixed legs facing away from the fixed plate 27 are fixedly connected to the surface of the rotating plate 23.

[0047] Combine Figure 2 and Figure 4 A sliding groove 222 is provided on the surface of the limiting member 22 facing away from the clamping seat 21. The length direction of the sliding groove 222 is perpendicular to the axis of the clamping seat 21, and the sliding grooves 222 on the three limiting members 22 are all opened centripetally. The end of the driving rod 26 is away from the clamping member 24, and a sliding member (not shown in the figure) is fixed on the side wall. The sliding member is adapted to the sliding groove 222 and the sliding member is slidably set in the sliding groove 222.

[0048] Combined with Figure 2 and Figure 4 , the fixing component 2 further includes a fixing post 28 and a third spring 29. A fixing groove 211 is formed on the surface of the clamping seat 21 where the rotating plate 23 is arranged. The fixing groove 211 is arc-shaped. The fixing groove 211 is spaced from the peripheral wall of the rotating plate 23. The center of the arc of the groove wall of the fixing groove 211 coincides with the center of the plate surface of the clamping seat 21. One end of the fixing post 28 is fixedly connected to the surface of the fixing leg away from the axis of the rotating plate 23. The other end of the fixing post 28 bends towards the clamping seat 21 and is slidably inserted into the fixing groove 211. The third spring 29 is arranged in the fixing groove 211. One end of the third spring 29 is fixedly connected to the end wall of the fixing groove 211, and the other end is fixedly connected to the peripheral wall of the end of the fixing post 28. The third spring 29 can prevent the cable from detaching from the traction device when the fixing component 2 is used to traction and thread the cable.

[0049] This specific embodiment is only an interpretation of the present application, and it is not a limitation to the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A cable duct threading traction device, characterized in that: The traction device comprises a driving assembly (1) and a fixing assembly (2), wherein the driving assembly (1) comprises a mounting cylinder (11), a driving seat (12), a motor (121), a rotating shaft (122) and a driving wheel (13), a mounting hole (111) being provided on a peripheral wall of the mounting cylinder (11), the driving seat (12) being slidably arranged in the mounting hole (111), the motor (121) being arranged in the driving seat (12), the rotating shaft (122) being rotatably inserted in the end of the driving seat (12) and being located outside the mounting cylinder (11), the driving wheel (13) being coaxially fixed to the end of the rotating shaft (122), the motor (121) and the rotating shaft (122) being meshedly connected via a first bevel gear and a second bevel gear, and the fixing assembly (2) being arranged in the mounting cylinder (11).

2. The cable duct threading and traction device according to claim 1, characterized in that: The end surface of the drive seat (12) away from the rotating shaft (122) is fixedly connected with a first connecting plate. The drive assembly (1) also includes a first spring (14), which is arranged between the first connecting plate and the inner wall of the installation cylinder (11).

3. The cable duct wire threading traction device according to claim 2, characterized in that: A sliding hole (112) is provided on the peripheral wall of the mounting cylinder (11). The driving assembly (1) further comprises a sliding rod (17) and an auxiliary wheel (18). The sliding rod (17) is slidably arranged in the sliding hole (112), and the auxiliary wheel (18) is hinged to the end of the sliding rod (17).

4. A cable duct threading traction device according to claim 3, characterized in that: A second connecting plate is fixedly connected to the end surface of the sliding rod (17) away from the auxiliary wheel (18). The driving assembly (1) also includes a second spring (19), which is arranged between the second connecting plate and the inner wall of the mounting cylinder (11).

5. The cable duct threading traction device according to claim 4, characterized in that: The drive assembly (1) further comprises a partition plate (15), wherein the partition plate (15) is arranged in the mounting tube (11) between the mounting hole (111) and the sliding hole (112).

6. A cable duct threading and traction device according to claim 1, characterized in that: The fixing assembly (2) comprises a clamping seat (21), a limiting member (22), a rotating plate (23), a clamping member (24), a driving rod (26) and a fixing plate (27); the clamping seat (21) is rotatably arranged in the mounting tube (11); the limiting member (22) is fixedly connected to the surface of the clamping seat (21); the rotating plate (23) is rotatably arranged on the surface of the clamping member (24); the clamping member (24) is hinged to the plate surface of the rotating plate (23); One end of the driving rod (26) is fixedly connected to the peripheral wall of the clamping member (24); the fixed plate (27) is arranged on the side of the clamping member (24) away from the rotating plate (23) and is hinged to the clamping member (24); the fixed plate (27) is fixedly connected to the rotating plate (23); a second sliding groove (222) is provided on the surface of the limiting member (22) away from the clamping seat (21); and the end of the driving rod (26) away from the clamping member (24) is slidably arranged in the second sliding groove (222).

7. The cable duct wire threading traction device according to claim 6, characterized in that: The limiting member (22) is provided with an accommodating groove (221) on a surface close to the rotating plate (23), and the rotating plate (23) is adapted to the accommodating groove (221) and is slidably inserted in the accommodating groove (221).

8. The cable duct threading and traction device according to claim 6, characterized in that: An annular sliding groove (113) is formed in the inner wall of the installation cylinder (11), and the clamping seat (21) is slidably arranged in the annular sliding groove (113).

9. The cable duct threading traction device according to claim 8, characterized in that: A fixing groove (211) is formed in the plate surface of the clamping seat (21). The fixing assembly (2) further includes a fixing column (28). One end of the fixing column (28) is fixedly connected to the fixing plate (27), and the other end is slidably arranged in the fixing groove (211).

10. A cable duct threading traction device according to claim 9, characterized in that: The fixing assembly (2) further includes a third spring (29). The third spring (29) is arranged in the fixing groove (211). One end of the third spring (29) is fixedly connected to the end of the fixing groove (211), and the other end is fixedly connected to the peripheral wall of the end of the fixing column (28).

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