Cable conduit threading traction device

Abstract

The invention relates to a cable conduit threading traction device which comprises a traction head and a clamping mechanism, a pull ring is fixedly arranged on the front side of the traction head, supporting legs are evenly arranged on the outer side of the traction head and connected with the traction head through hinged supports, rolling wheels are arranged at the outer ends of the supporting legs, supporting springs are arranged between the supporting legs and the traction head, and the clamping mechanism is arranged on the traction head. A driving mechanism for controlling the traction head to move is arranged on the lower side of the traction head, a clamping mechanism is arranged on the rear side of the traction head and comprises a shell, a rotating disc is rotationally arranged in the shell, an annular fluted disc is arranged on the right side of the rotating disc, a driving rotating wheel is arranged in the shell, and the driving rotating wheel is meshed with the annular fluted disc; a spiral groove is formed in the left side of the rotating disc, clamping jaws are arranged on the left side of the spiral groove, the clamping jaws are in threaded connection with the spiral groove through screw bases, and a cable is clamped between the clamping jaws; the device has a good protection effect on the cable, and the working efficiency and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable installation, and in particular relates to a cable conduit threading and pulling device. Background Art

[0002] Cables are generally composed of three parts: conductor, insulation layer, and protective layer. There are usually two types of cables: power cables and control cables. Power cables are mainly used for the transmission and distribution of electric energy, while control cables are mainly used for measuring, protecting, and controlling lines. With the rapid urbanization process in China, some of the overhead lines commonly seen in rural and urban areas have been converted to buried cables, which not only saves space but also has benefits for the beauty of towns. However, laying cables underground requires the use of cable wells, cable ducts, etc., but some cable ducts are very long, some of which can reach hundreds of meters, and the cable itself is soft. Therefore, it is necessary to use a threader to pass through the duct and then pull a tension rope or wire rope to pull the cable through the cable duct. In the process of the tension rope driving the cable to move, the end of the cable is in direct contact with the duct, especially at the bend. The friction and collision between the two will cause damage to the cable and will also cause resistance to the cable's forward movement. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a cable conduit threading and pulling device to solve the above technical problems.

[0004] The objective of the present invention is achieved in this way: a cable conduit threading and traction device comprises a traction head and a clamping mechanism, wherein a pull ring is fixedly arranged on the front side of the traction head, legs are evenly arranged on the outside of the traction head, the legs are connected to the traction head through a hinge seat, rollers are arranged at the outer ends of the legs, support springs are arranged between the legs and the traction head, a driving mechanism for controlling the movement of the traction head is arranged on the lower side of the traction head, a clamping mechanism is arranged on the rear side of the traction head, the clamping mechanism comprises a shell, a turntable is rotatably arranged inside the shell, a ring gear disk is arranged on the right side of the turntable, an active rotating wheel is arranged inside the shell, the active rotating wheel and the ring gear disk are meshed with each other, a spiral groove is arranged on the left side of the turntable, a claw is arranged on the left side of the spiral groove, the claw is screwed to the spiral groove through a screw seat, and a cable is clamped between the claws.

[0005] The clamping claws are evenly and symmetrically arranged with the shell as the center, and a clamping plate is arranged inside the clamping claws.

[0006] A pad is arranged on the surface of the clamp plate, and the clamp plate and the pad are both in arc shape.

[0007] The driving mechanism includes a track wheel, a track is arranged on the outside of the track wheel, a first wheel axle is arranged inside the track wheel, the first wheel axle cooperates with the track through a driving wheel, a driven gear is arranged on the outside of the first wheel axle, a second wheel axle is arranged on the side of the first wheel axle, a driving gear and a bevel gear A are arranged on the outside of the second wheel axle, the driving gear and the driven gear are meshed with each other, an electric motor is arranged inside the track wheel, a bevel gear B is arranged at the output end of the motor, and the bevel gear B and the bevel gear A are meshed with each other.

[0008] A connecting seat is arranged on the outer side of the track wheel, and the connecting seat is hinged to the traction head through a hinge shaft, and an adjustment mechanism is arranged between the hinge shaft and the traction head.

[0009] The adjusting mechanism comprises a screw rod, the screw rod is located inside the traction head, an adjusting screw head is arranged at the outer end of the screw rod, a sleeve is threadedly arranged at the outer side of the screw rod, and the sleeve is hinged to the hinge shaft through a connecting rod.

[0010] A universal mechanism is arranged between the traction head and the clamping mechanism, and the universal mechanism comprises a universal seat and a plug. The universal seat is fixedly connected to the traction head, and the plug is fixedly connected to the shell. A clamping block is arranged at the end of the plug, and a rotating sleeve is arranged between the clamping block and the universal seat.

[0011] A support is arranged below the universal mechanism, and a support seat is arranged on the upper side of the support.

[0012] A frame body is arranged on the upper side of the bracket, a return spring is arranged between the frame body and the bracket, a pressure rod is arranged on the upper side of the frame body, and a ball bearing is arranged on the surface of the frame body.

[0013] Beneficial effects of the present invention: The device can conveniently connect and drag the cable through the pull ring arranged on the front side of the traction head. At the same time, the legs and rollers evenly arranged on the outside of the traction head make the whole device move more smoothly in the pipeline, reduce friction, and thus improve the traction efficiency. The legs are connected to the traction head through a hinge seat and are provided with a support spring. Such a design enables the legs to be adaptively adjusted according to the shape and size of the pipeline, which not only ensures the flexibility of the device, but also enhances the stability in complex pipelines. The driving mechanism for controlling the movement of the traction head arranged on the lower side of the traction head can have an auxiliary effect on the movement of the traction head and increase the moving speed of the traction head. The clamping mechanism can firmly clamp the cable through the synergistic effect of the active wheel, the turntable, the annular gear disk, the spiral groove and the claw to prevent the cable from slipping or being damaged during the traction process. This clamping method is not only stable and reliable, but also simple to operate, which improves work efficiency. In summary, the device provides great convenience for cable threading work through its efficient, flexible, stable, reliable and safe design, and effectively improves work efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is an overall structural diagram of a cable conduit threading and pulling device.

[0015] Figure 2 The present invention is a right side view of a traction head of a cable conduit threading traction device.

[0016] Figure 3 The present invention is a diagram showing the internal structure of a clamping mechanism of a cable conduit threading and pulling device.

[0017] Figure 4 The present invention is a left side view of a clamping mechanism of a cable conduit threading and pulling device.

[0018] Figure 5 This is a top view of the internal structure of a track wheel of a cable conduit threading and traction device of the present invention.

[0019] Figure 6 The present invention is a screw connection structure diagram of a cable conduit threading and traction device.

[0020] Figure 7 The present invention is a cross-sectional view of a universal mechanism of a cable conduit threading and traction device.

[0021] Figure 8 The present invention is a side structural diagram of a bracket of a cable conduit threading and pulling device.

[0022] In the figure: 1, traction head 2, clamping mechanism 3, pull ring 4, support leg 5, hinge seat 6, roller 7, support spring 8, driving mechanism 9, shell 10, turntable 11, driving wheel 12, annular toothed disk 13, spiral groove 14, claw 15, screw seat 16, cable 17, clamping plate 18, pad 19, track wheel 20, track 21, first wheel shaft 22, driving wheel 23, driven gear 24, second wheel shaft 25, driving gear 26, bevel gear A 27, motor 28, bevel gear B 29, connecting seat 30, hinge shaft 31, screw 32, adjusting screw head 33, outer sleeve 34, connecting rod 35, universal mechanism 36, universal seat 37, plug 38, block 39, rotating sleeve 40, support 41, support seat 42, frame 43, reset spring 44, pressure rod 45, ball. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. Example

[0024] like Figure 1-4As shown, a cable conduit threading and traction device comprises a traction head 1 and a clamping mechanism 2, a pull ring 3 is fixedly provided on the front side of the traction head 1, legs 4 are evenly provided on the outside of the traction head 1, the legs 4 are connected to the traction head 1 through a hinge seat 5, rollers 6 are provided at the outer ends of the legs 4, a supporting spring 7 is provided between the legs 4 and the traction head 1, a driving mechanism 8 for controlling the movement of the traction head 1 is provided on the lower side of the traction head 1, a clamping mechanism 2 is provided on the rear side of the traction head 1, the clamping mechanism 2 comprises a shell 9, a turntable 10 is rotatably provided inside the shell 9, a ring gear disk 12 is provided on the right side of the turntable 10, an active rotating wheel 11 is provided inside the shell 9, the active rotating wheel 11 and the ring gear disk 12 are meshed with each other, a spiral groove 13 is provided on the left side of the turntable 10, a clamping claw 14 is provided on the left side of the spiral groove 13, the clamping claw 14 is screwed to the spiral groove 13 through a screw seat 15, and a cable 16 is clamped between the clamping claws 14.

[0025] The clamping claws 14 are evenly and symmetrically arranged with the housing 9 as the center, and a clamping plate 17 is arranged inside the clamping claws 14 .

[0026] A pad 18 is disposed on the surface of the clamping plate 17 , and both the clamping plate 17 and the pad 18 are arc-shaped.

[0027] When the present invention is in use, the cable 16 is first fixed by the clamping mechanism 2. Specifically, the cable 16 is placed between the claws 14 on the left side of the clamping mechanism 2, and a tool is inserted into the inside of the active rotating wheel 11 to drive the active rotating wheel 11 to rotate. The active rotating wheel 11 drives the turntable 10 to rotate inside the shell 9 through the annular gear plate 12. The claw 14 is connected to the spiral groove 13 through the screw seat 15. The turntable 10 can drive the claw 14 to move through the spiral groove 13, so that the claw 14 is close to the middle of the turntable 10. The claw 14 can tightly clamp the cable 16 through the clamping plate 17 to prevent the cable 16 from detaching from the clamping mechanism 2. Then connect the pulling rope with the pull ring 3, and the device can be placed inside the pipeline. The traction head 1 fits with the pipeline through the supporting legs 4. The support spring 7 can adjust the distance between the supporting legs 4 and the traction head 1, so that the traction head 1 and the pipeline fit each other. At this time, the device can be driven to move by the pulling rope, and the driving mechanism 8 is started to drive the traction head 1 forward, reducing the resistance during the movement of the device and speeding up the work efficiency. The overall design of the device is reasonable, and the various components are closely matched, which can effectively protect the cable 16 from damage during the threading process. The driving mechanism 8 can provide assistance for the movement of the traction head 1. At the same time, due to its flexible supporting leg 4 design and reliable clamping mechanism 2, the device can adapt to pipelines of different shapes and sizes and has a wide range of applicability. Example

[0028] like Figure 1-6As shown, a cable conduit threading and traction device comprises a traction head 1 and a clamping mechanism 2, a pull ring 3 is fixedly provided on the front side of the traction head 1, legs 4 are evenly provided on the outside of the traction head 1, the legs 4 are connected to the traction head 1 through a hinge seat 5, rollers 6 are provided at the outer ends of the legs 4, a supporting spring 7 is provided between the legs 4 and the traction head 1, a driving mechanism 8 for controlling the movement of the traction head 1 is provided on the lower side of the traction head 1, a clamping mechanism 2 is provided on the rear side of the traction head 1, the clamping mechanism 2 comprises a shell 9, a turntable 10 is rotatably provided inside the shell 9, a ring gear disk 12 is provided on the right side of the turntable 10, an active rotating wheel 11 is provided inside the shell 9, the active rotating wheel 11 and the ring gear disk 12 are meshed with each other, a spiral groove 13 is provided on the left side of the turntable 10, a clamping claw 14 is provided on the left side of the spiral groove 13, the clamping claw 14 is screwed to the spiral groove 13 through a screw seat 15, and a cable 16 is clamped between the clamping claws 14.

[0029] For better effect, the clamping claws 14 are evenly and symmetrically arranged with the shell 9 as the center, and a clamping plate 17 is arranged inside the clamping claws 14. According to specific needs, multiple clamping claws 14 can be arranged.

[0030] For better effect, a pad 18 is provided on the surface of the clamp plate 17 . The clamp plate 17 and the pad 18 are both arc-shaped. The arc-shaped clamp plate 17 and the pad 18 are easy to fit with the surface of the cable 16 . The pad 18 can increase the friction with the cable 16 and has a protective effect on the cable 16 .

[0031] For better effect, the driving mechanism 8 includes a track wheel 19, a track 20 is arranged on the outside of the track wheel 19, a first wheel shaft 21 is arranged inside the track wheel 19, the first wheel shaft 21 cooperates with the track 20 through a driving wheel 22, a driven gear 23 is arranged on the outside of the first wheel shaft 21, a second wheel shaft 24 is arranged on the side of the first wheel shaft 21, a driving gear 25 and a bevel gear A26 are arranged on the outside of the second wheel shaft 24, the driving gear 25 and the driven gear 23 are meshed with each other, an electric motor 27 is arranged inside the track wheel 19, a bevel gear B28 is arranged at the output end of the motor 27, and the bevel gear B28 and the bevel gear A26 are meshed with each other.

[0032] For better effect, a connecting seat 29 is provided on the outer side of the track wheel 19, and the connecting seat 29 is hinged to the traction head 1 through a hinge shaft 30. An adjustment mechanism is provided between the hinge shaft 30 and the traction head 1, and the distance between the driving mechanism 8 and the traction head 1 can be adjusted through the adjustment mechanism.

[0033] For better effect, the adjustment mechanism includes a screw 31, which is located inside the traction head 1. An adjusting screw head 32 is provided at the outer end of the screw 31. A sleeve 33 is threadedly provided on the outer side of the screw 31. The sleeve 33 is hinged to the hinge shaft 30 through a connecting rod 34. The screw 31 can be driven to move inside the traction head 1 through the adjusting screw head 32.

[0034] When the present invention is in use, the cable 16 is first fixed by the clamping mechanism 2. Specifically, the cable 16 is placed between the claws 14 on the left side of the clamping mechanism 2, and a tool is inserted into the inside of the active rotating wheel 11 to drive the active rotating wheel 11 to rotate. The active rotating wheel 11 drives the turntable 10 to rotate inside the shell 9 through the annular gear plate 12. The claw 14 is connected to the spiral groove 13 through the screw seat 15. The turntable 10 can drive the claw 14 to move through the spiral groove 13, so that the claw 14 is close to the middle of the turntable 10. The claw 14 can tightly clamp the cable 16 through the clamping plate 17 to prevent the cable 16 from detaching from the clamping mechanism 2. Then connect the pulling rope with the pull ring 3, and then place the device inside the pipeline. The traction head 1 fits with the pipeline through the support legs 4. The support spring 7 can adjust the distance between the support legs 4 and the traction head 1 so that the traction head 1 and the pipeline fit each other. At this time, the device can be driven to move by the pulling rope, and the driving mechanism 8 is started to drive the traction head 1 forward, thereby reducing the resistance during the movement of the device and speeding up the work efficiency. Furthermore, the driving mechanism 8 can be used to drive the traction head 1 to move, thereby providing assistance for the movement of the device inside the pipeline. Specifically, when the motor 27 is started, the bevel gear A26 can be driven to rotate through the bevel gear B28, thereby driving the second wheel shaft 24 to rotate. The second wheel shaft 24 drives the driven gear 23 to rotate through the driving gear 25, thereby driving the first wheel shaft 21 to rotate. The first wheel shaft 21 can drive the crawler 20 to move through the driving wheel 22, that is, the traction head 1 can be driven to move through the crawler wheel 19. Further, the screw 31 can be driven to rotate by adjusting the screw head 32, thereby driving the outer sleeve 33 to move left and right on the outside of the screw 31. The angle of the hinge shaft 30 can be adjusted by the connecting rod 34, thereby changing the distance between the driving mechanism 8 and the traction head 1, so that the driving mechanism 8 fits tightly against the pipeline. The overall design of the device is reasonable, and the various components are tightly matched, which can effectively protect the cable 16 from damage during the threading process. The driving mechanism 8 can provide assistance for the movement of the traction head 1. At the same time, due to its flexible support leg 4 design and reliable clamping mechanism 2, the device can adapt to pipes of different shapes and sizes and has wide applicability. Example

[0035] like Figure 1-8As shown, a cable conduit threading and traction device comprises a traction head 1 and a clamping mechanism 2, a pull ring 3 is fixedly provided on the front side of the traction head 1, legs 4 are evenly provided on the outside of the traction head 1, the legs 4 are connected to the traction head 1 through a hinge seat 5, rollers 6 are provided at the outer ends of the legs 4, a supporting spring 7 is provided between the legs 4 and the traction head 1, a driving mechanism 8 for controlling the movement of the traction head 1 is provided on the lower side of the traction head 1, a clamping mechanism 2 is provided on the rear side of the traction head 1, the clamping mechanism 2 comprises a shell 9, a turntable 10 is rotatably provided inside the shell 9, a ring gear disk 12 is provided on the right side of the turntable 10, an active rotating wheel 11 is provided inside the shell 9, the active rotating wheel 11 and the ring gear disk 12 are meshed with each other, a spiral groove 13 is provided on the left side of the turntable 10, a clamping claw 14 is provided on the left side of the spiral groove 13, the clamping claw 14 is screwed to the spiral groove 13 through a screw seat 15, and a cable 16 is clamped between the clamping claws 14.

[0036] For better effect, the clamping claws 14 are evenly and symmetrically arranged with the shell 9 as the center, and a clamping plate 17 is arranged inside the clamping claws 14. According to specific needs, multiple clamping claws 14 can be arranged.

[0037] For better effect, a pad 18 is provided on the surface of the clamp plate 17 . The clamp plate 17 and the pad 18 are both arc-shaped. The arc-shaped clamp plate 17 and the pad 18 are easy to fit with the surface of the cable 16 . The pad 18 can increase the friction with the cable 16 and has a protective effect on the cable 16 .

[0038] For better effect, the driving mechanism 8 includes a track wheel 19, a track 20 is arranged on the outside of the track wheel 19, a first wheel shaft 21 is arranged inside the track wheel 19, the first wheel shaft 21 cooperates with the track 20 through a driving wheel 22, a driven gear 23 is arranged on the outside of the first wheel shaft 21, a second wheel shaft 24 is arranged on the side of the first wheel shaft 21, a driving gear 25 and a bevel gear A26 are arranged on the outside of the second wheel shaft 24, the driving gear 25 and the driven gear 23 are meshed with each other, an electric motor 27 is arranged inside the track wheel 19, a bevel gear B28 is arranged at the output end of the motor 27, and the bevel gear B28 and the bevel gear A26 are meshed with each other.

[0039] For better effect, a connecting seat 29 is provided on the outer side of the track wheel 19, and the connecting seat 29 is hinged to the traction head 1 through a hinge shaft 30. An adjustment mechanism is provided between the hinge shaft 30 and the traction head 1, and the distance between the driving mechanism 8 and the traction head 1 can be adjusted through the adjustment mechanism.

[0040] For better effect, the adjustment mechanism includes a screw 31, which is located inside the traction head 1. An adjusting screw head 32 is provided at the outer end of the screw 31. A sleeve 33 is threadedly provided on the outer side of the screw 31. The sleeve 33 is hinged to the hinge shaft 30 through a connecting rod 34. The screw 31 can be driven to move inside the traction head 1 through the adjusting screw head 32.

[0041] For better effect, a universal mechanism 35 is arranged between the traction head 1 and the clamping mechanism 2. The universal mechanism 35 includes a universal seat 36 and a plug 37. The universal seat 36 is fixedly connected to the traction head 1, and the plug 37 is fixedly connected to the shell 9. A clamping block 38 is arranged at the end of the plug 37, and a rotating sleeve 39 is arranged between the clamping block 38 and the universal seat 36.

[0042] For better effect, a support 40 is arranged below the universal mechanism 35 , and a bracket 41 is arranged on the upper side of the support 40 . The bracket 41 can support the bottom of the cable 16 , and the shape of the bracket 41 and the cable 16 match each other.

[0043] In order to achieve better effect, a frame 42 is provided on the upper side of the bracket 41, a return spring 43 is provided between the frame 42 and the bracket 41, a pressure rod 44 is provided on the upper side of the frame 42, a ball 45 is provided on the surface of the frame 42, and the pressure rod 44 and the frame 42 are hinged by a coil spring. The cable 16 can be crimped by the pressure rod 44 to prevent the cable 16 from detaching from the frame 42.

[0044] When the present invention is in use, the cable 16 is first fixed by the clamping mechanism 2. Specifically, the cable 16 is placed between the claws 14 on the left side of the clamping mechanism 2, and a tool is inserted into the inside of the active rotating wheel 11 to drive the active rotating wheel 11 to rotate. The active rotating wheel 11 drives the turntable 10 to rotate inside the shell 9 through the annular gear plate 12. The claw 14 is connected to the spiral groove 13 through the screw seat 15. The turntable 10 can drive the claw 14 to move through the spiral groove 13, so that the claw 14 is close to the middle of the turntable 10. The claw 14 can tightly clamp the cable 16 through the clamping plate 17 to prevent the cable 16 from detaching from the clamping mechanism 2. Then connect the tension rope with the pull ring 3, and the device can be placed inside the pipeline. The traction head 1 fits with the pipeline through the support legs 4. The support spring 7 can adjust the distance between the support legs 4 and the traction head 1, so that the traction head 1 fits with the pipeline. At this time, the device can be driven to move by the tension rope, and the driving mechanism 8 is started to drive the traction head 1 forward, reducing the resistance during the movement of the device and speeding up the work efficiency. Further, when the cable 16 shakes or deflects at an angle during the movement, it will drive the clamping mechanism 2 to rotate. At this time, under the action of the universal mechanism 35, the clamping mechanism 2 can rotate through the plug 37 and the block 38, and the rotating sleeve 39 inside the universal seat 36 can be used to offset the shaking or deflection of the cable 16, so as to avoid the cable 16 from being separated due to unstable shaking or angle deflection during the traction process. The stability of the traction head 1 can also be increased. The cable 16 can be supported by the support 40 and the support seat 41, and the connection stability of the cable 16 is increased. The overall design of the device is reasonable, and the various components are closely matched, which can effectively protect the cable 16 from damage during the threading process. The driving mechanism 8 can provide assistance for the movement of the traction head 1. At the same time, due to its flexible support leg 4 design and reliable clamping mechanism 2, the device can adapt to pipelines of different shapes and sizes and has a wide range of applicability.

Claims

1. A cable conduit threading and pulling device, comprising a pulling head and a clamping mechanism, characterized in that: A pull ring is fixedly provided on the front side of the traction head, supporting legs are evenly provided on the outside of the traction head, the supporting legs are connected to the traction head through a hinge seat, rollers are provided at the outer ends of the supporting legs, supporting springs are provided between the supporting legs and the traction head, a driving mechanism for controlling the movement of the traction head is provided on the lower side of the traction head, a clamping mechanism is provided on the rear side of the traction head, the clamping mechanism includes a shell, a turntable is rotatably provided inside the shell, a ring gear disk is provided on the right side of the turntable, a driving wheel is provided inside the shell, the driving wheel and the ring gear disk are meshed with each other, a spiral groove is provided on the left side of the turntable, a claw is provided on the left side of the spiral groove, the claw is screwed to the spiral groove through a screw seat, and a cable is clamped between the claws.

2. A cable conduit threading and pulling device as claimed in claim 1, characterized in that: The clamping claws are evenly and symmetrically arranged with the shell as the center, and a clamping plate is arranged inside the clamping claws.

3. A cable conduit threading and pulling device as claimed in claim 2, characterized in that: A pad is arranged on the surface of the clamp plate, and the clamp plate and the pad are both in arc shape.

4. A cable conduit threading and pulling device as claimed in claim 1, characterized in that: The driving mechanism includes a track wheel, a track is arranged on the outside of the track wheel, a first wheel axle is arranged inside the track wheel, the first wheel axle cooperates with the track through a driving wheel, a driven gear is arranged on the outside of the first wheel axle, a second wheel axle is arranged on the side of the first wheel axle, a driving gear and a bevel gear A are arranged on the outside of the second wheel axle, the driving gear and the driven gear are meshed with each other, an electric motor is arranged inside the track wheel, a bevel gear B is arranged at the output end of the motor, and the bevel gear B and the bevel gear A are meshed with each other.

5. A cable conduit threading and pulling device as claimed in claim 4, characterized in that: A connecting seat is arranged on the outer side of the track wheel, and the connecting seat is hinged to the traction head through a hinge shaft, and an adjustment mechanism is arranged between the hinge shaft and the traction head.

6. A cable conduit threading and pulling device as claimed in claim 5, characterized in that: The adjusting mechanism comprises a screw rod, the screw rod is located inside the traction head, an adjusting screw head is arranged at the outer end of the screw rod, a sleeve is threadedly arranged at the outer side of the screw rod, and the sleeve is hinged to the hinge shaft through a connecting rod.

7. A cable conduit threading and pulling device as claimed in claim 1, characterized in that: A universal mechanism is arranged between the traction head and the clamping mechanism, and the universal mechanism comprises a universal seat and a plug. The universal seat is fixedly connected to the traction head, and the plug is fixedly connected to the shell. A clamping block is arranged at the end of the plug, and a rotating sleeve is arranged between the clamping block and the universal seat.

8. A cable conduit threading and pulling device as claimed in claim 7, characterized in that: A support is arranged below the universal mechanism, and a support seat is arranged on the upper side of the support.

9. A cable conduit threading and pulling device as claimed in claim 8, characterized in that: A frame body is arranged on the upper side of the bracket, a return spring is arranged between the frame body and the bracket, a pressure rod is arranged on the upper side of the frame body, and a ball bearing is arranged on the surface of the frame body.

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