Traction laying device for underground cable

Abstract

The invention relates to the technical field of cable laying, in particular to a traction laying device for an underground cable, which comprises an underground pipeline laid underground, a traction mechanism used for driving movement in the underground pipeline, and a clamping mechanism connected to the rear side of the traction mechanism and used for clamping and fixing the cable, the traction mechanism comprises a traction base, a first buffer column arranged at the front end of the traction base and a monitoring mechanism which is arranged at the front end of the bottom of the traction base and used for monitoring the interior of the underground pipeline, and a group of first conveying rollers and second conveying rollers which can advance and retreat relative to a cable laying surface are arranged in the middle of the traction base; a traction rope is wound in each of the first conveying roller and the second conveying roller, and the traction ropes are connected with the clamping mechanism; the method has the advantages that defects in the underground pipeline and hidden dangers endangering the cable laying safety can be found in time, effective measures can be taken in time, the cable laying difficulty is effectively reduced, the labor cost is reduced, and the cable laying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable laying, in particular to a traction and laying device for underground cables. Background Art

[0002] Cable is a device for transmitting electric energy or signals. It is usually composed of several or several groups of wires. Each group of wires is insulated from each other and are often twisted around a central wire. The entire outside is covered with a highly insulating covering layer. The cable has the characteristics of being powered inside and insulated outside. Cables are widely used in many industries such as oil fields and mines, construction, machinery manufacturing units, scientific research units, ports and terminals, shopping malls, hotels, road and bridge construction, etc. With the accelerated development of cities, some cables will be laid in underground pipelines in urban construction to solve the problem of limited space above the ground.

[0003] Currently, when laying cables, it is necessary to lay the cables in underground pipes. Due to the small entrance of the underground pipes, insufficient light inside, low oxygen concentration, and complex internal environment of the underground pipes, it is not conducive to direct cable laying. It is necessary to inspect the inside first, which increases the difficulty of cable laying and leads to low cable laying efficiency.

[0004] Therefore, in view of the above problems, we propose a traction and laying device for underground cables. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a traction and laying device for underground cables to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a traction and laying device for underground cables, comprising an underground pipeline laid underground, a traction mechanism for driving movement inside the underground pipeline, and a clamping mechanism connected to the rear side of the traction mechanism for clamping and fixing the cable, the traction mechanism comprising a traction base, a first buffer column arranged at the front end of the traction base, and a monitoring mechanism arranged at the front end of the bottom of the traction base for monitoring the inside of the underground pipeline, moving wheels are arranged at the four corners of the outer side of the traction base to fit the inner wall of the underground pipeline, a first buffer block is arranged between two moving wheels on one side of the traction base to fit the inner wall of the underground pipeline, a group of first conveying rollers and second conveying rollers that can move forward and backward relative to the cable laying surface are arranged in the middle of the traction base, a traction rope is wound inside the first conveying roller and the second conveying roller, the traction mechanism is connected to the clamping mechanism through the traction rope, and the clamping mechanism comprises a limiting tube with a K-shaped structure, a connecting block installed at the front end of the limiting tube and connected to the traction mechanism, and a first limiting member and a second limiting member are arranged at the rear end and one side for clamping and fixing the cable.

[0007] Preferably, the first limit member and the second limit member have the same structure, the first limit member includes a connecting plate and an outer clamping plate, the connecting plate is threadedly connected to the limit tube, the outer clamping plate is threadedly connected to the cable, a group of first bolt columns are arranged on the connecting plate, and two groups of second bolt columns are arranged on the outer clamping plate.

[0008] Preferably, a cable groove is provided on the inner side of the limiting tube, the cable groove is L-shaped, inner clamping plates are installed on both sides of the L-shaped cable groove, and the inner clamping plates are connected to knobs provided on the outer side of the limiting tube.

[0009] Preferably, the limiting tube is connected to the connecting block, and the limiting tube and the knob connecting end are symmetrically provided with bolt holes for installing fixing bolts.

[0010] Preferably, the first buffer column includes a lighting lamp arranged at the front end and second buffer blocks arranged on both sides, the second buffer blocks include a second buffer pulley attached to the inner wall of the underground pipe and a return spring and a second buffer spring arranged on the inner side of the first buffer column, a connecting seat is also provided at the connecting end of the first buffer column and the traction base, the first buffer block includes a first buffer pulley attached to the inner wall of the underground pipe and a second buffer column arranged on the outer side of the traction base, the first buffer pulley and the second buffer pulley have the same structure, and a first buffer spring is arranged inside the second buffer column.

[0011] Preferably, the connecting seat is provided with a second motor on the inner side of the lower end of the traction base, the second motor is a dual-axis motor, both sides of the second motor are connected to the moving wheels at the front end of the outer side of the traction base through transmission rods, and a traction groove is provided on the rear side of the traction base.

[0012] Preferably, a first motor is provided at the lower end of the second motor, a second support shaft is provided in the middle of the upper end of the first motor, the second support shaft is connected to the second conveying roller, a first support shaft is provided at the lower end of the first motor, the first support shaft is connected to the first conveying roller, and the first conveying roller and the second conveying roller are arranged in the traction groove.

[0013] Preferably, one side of the first support shaft is connected to a second gear via a transmission rod, the second gear is connected to a first gear, and the first gear is arranged on the inner side of the moving wheel.

[0014] Preferably, the monitoring mechanism is provided with a power supply, a control and a monitoring part, and the power supply, the control and the monitoring part are all electrically connected, and the power supply and the control are both provided in the traction base.

[0015] Preferably, the power supply part is electrically connected to a first motor for driving in an underground pipeline and a second motor for driving the first conveying roller and the second conveying roller to reel in the traction rope, the control part is electrically connected to a wireless transceiver arranged at the top outside the monitoring mechanism, and the monitoring part is electrically connected to a camera arranged at the front end outside the monitoring mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention uses a traction mechanism to walk inside the underground pipeline, so that it can replace manual labor to monitor the internal situation of the underground pipeline. The purpose is to grasp the operation status of the traction mechanism in the underground pipeline and observe the surrounding environment, so that it can timely discover the defects inside the underground pipeline and the hidden dangers that endanger the safety of cable laying, and locate it through wireless signals, and take effective measures in time to ensure the safety of cable laying. At the same time, a traction rope is arranged on the rear side of the traction mechanism, and a clamping mechanism is connected to the traction rope, so that the cable is clamped and locked by the limit pipe arranged on the clamping mechanism and the first limit piece and the second limit piece connected to the limit pipe. Then, when the traction rope is used to pull and lay the cable in the underground pipeline, the difficulty of pulling and laying the cable in the underground pipeline is effectively reduced, and the labor cost can also be reduced, the efficiency of cable traction and laying is improved, and the defects in the underground pipeline during cable laying and the hidden dangers that endanger the safety of cable laying are reduced. At the same time, it can also effectively reduce the inconvenience of operation when pulling and laying the cable in the underground pipeline and improve the efficiency of cable traction and laying in the underground pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the traction mechanism structure of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping mechanism of the present invention; Figure 4 It is a schematic diagram of the internal structure of the limit tube of the clamping mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the limiting member of the clamping mechanism of the present invention; Figure 6 It is a schematic diagram of the internal structure of the traction mechanism of the present invention.

[0018] Notes in the figure: 1. Underground pipeline; 2. Traction mechanism; 3. Clamping mechanism; 4. Traction base; 5. Moving wheel; 6. First buffer block; 7. Second buffer block; 8. Illuminating lamp; 9. First buffer column; 10. Traction rope; 11. Traction groove; 12. First conveying roller; 13. Second conveying roller; 14. Monitoring mechanism; 15. Wireless transceiver; 16. Camera; 17. Connecting block; 18. Limiting tube; 19. Knob; 20. First limiting member; 21. Second limiting member; 22. Bolt hole; 23. Cable groove; 24. Inner clamping plate; 25. Connecting plate; 26. Outer clamping plate; 27. First bolt column; 28. Second bolt column; 29. ​​First gear; 30. Second gear; 31. First support shaft; 32. First buffer pulley; 33. Second buffer column; 34. First buffer spring; 35. Second support shaft; 36. First motor; 37. Second motor; 38. Connecting seat; 39. Second buffer pulley; 40. Return spring; 41. Second buffer spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0020] like Figure 1-6As shown, this embodiment discloses a traction and laying device for underground cables, which includes an underground pipeline 1 laid underground, a traction mechanism 2 for driving movement inside the underground pipeline 1, and a clamping mechanism 3 connected to the rear side of the traction mechanism 2 for clamping and fixing the cable. The traction mechanism 2 includes a traction base 4, a first buffer column 9 arranged at the front end of the traction base 4, and a monitoring mechanism 14 arranged at the front end of the bottom of the traction base 4 for monitoring the inside of the underground pipeline 1. Moving wheels 5 are arranged at the four corners of the outer side of the traction base 4 to fit the inner wall of the underground pipeline 1. A first buffer block 6 is arranged between two moving wheels 5 on one side of the traction base 4 to fit the inner wall of the underground pipeline 1. A group of first conveying rollers 12 and second conveying rollers 13 that can move forward and backward relative to the cable laying surface are arranged in the middle of the traction base 4, and a traction rope is wound around the first conveying roller 12 and the second conveying roller 13. 10, the traction mechanism 2 is connected to the clamping mechanism 3 through the traction rope 10, and the clamping mechanism 3 includes a hollow limiting tube 18, a connecting block 17 installed at the front end of the limiting tube 18 and connected to the traction mechanism 2, and a first limiting member 20 and a second limiting member 21 arranged at the rear end and one side for clamping and fixing the cable. The first limiting member 20 and the second limiting member 21 have the same structure. The first limiting member 20 includes a connecting plate 25 and an outer clamping plate 26. The connecting plate 25 is threadedly connected to the limiting tube 18, and the outer clamping plate 26 is threadedly connected to the cable. A group of first bolt columns 27 are arranged on the connecting plate 25, and two groups of second bolt columns 28 are arranged on the outer clamping plate 26. A cable groove 23 is arranged on the inner side of the limiting tube 18, and the cable groove 23 is arranged in an L shape. Inner clamping plates 24 are installed on both sides of the L shape of the cable groove 23, and the inner clamping plate 24 is connected to a knob 19 arranged on the outer side of the limiting tube 18; The limiting tube 18 is connected to the connecting block 17, and the connecting ends of the limiting tube 18 and the knob 19 are symmetrically provided with bolt holes 22 for installing fixing bolts; At the same time, the first buffer column 9 includes a lighting lamp 8 arranged at the front end and second buffer blocks 7 arranged on both sides, the second buffer block 7 includes a second buffer pulley 39 attached to the inner wall of the underground pipeline 1 and a return spring 40 and a second buffer spring 41 arranged on the inner side of the first buffer column 9, and a connecting seat 38 is also provided at the connecting end of the first buffer column 9 and the traction base 4. The first buffer block 6 includes a first buffer pulley 32 attached to the inner wall of the underground pipeline 1 and a second buffer column 33 arranged on the outer side of the traction base 4. The first buffer pulley 32 has the same structure as the second buffer pulley 39, and a first buffer spring 34 is arranged inside the second buffer column 33. The connecting seat 38 is provided. A second motor 37 is arranged on the inner side of the lower end of the traction base 4. The second motor 37 is a double-shaft motor. Both sides of the second motor 37 are connected to the moving wheel 5 at the outer front end of the traction base 4 through a transmission rod. A first motor 36 is arranged on the lower end of the second motor 37. A second support shaft 35 is arranged in the middle of the upper end of the first motor 36. The second support shaft 35 is connected to the second conveying roller 13. A first support shaft 31 is arranged on the lower end of the first motor 36. The first support shaft 31 is connected to the first conveying roller 12. One side of the first support shaft 31 is connected to the second gear 30 through a transmission rod. The second gear 30 is connected to the first gear 29. The first gear 29 is arranged on the inner side of the moving wheel 5. In addition, the monitoring mechanism 14 is provided with a power supply, a control and a monitoring part, and the power supply, the control and the monitoring parts are all electrically connected. The power supply and the control are both arranged in the traction base 4. The power supply part is electrically connected to a first motor 36 for driving in the underground pipeline 1 and a second motor 37 for driving the first conveying roller 12 and the second conveying roller 13 to reel in the traction rope 10. The control part is electrically connected to a wireless transceiver 15 arranged at the top of the outer side of the monitoring mechanism 14, and the monitoring part is electrically connected to a camera 16 arranged at the front end of the outer side of the monitoring mechanism 14.

[0021] In this embodiment, the traction mechanism 2 moves inside the underground pipeline 1, so that it passes through the monitoring mechanism 14 provided at the bottom front end of the traction mechanism 2, and performs infrared scanning and high-definition video monitoring on the inside of the underground pipeline 1, so that it follows the traction mechanism 2 to monitor the situation inside the underground pipeline 1, and the lighting lamp 8 provided on the first buffer column 9 at the front end of the traction mechanism 2 provides lighting for the inside of the underground pipeline 1, and the second buffer blocks 7 on both sides of the first buffer column 9 that adhere to the inner wall of the underground pipeline 1 and the first buffer blocks 6 on both sides of the traction base 4 provide steering and buffering force when the traction mechanism 2 is traveling on a curve, so that it can travel stably inside the underground pipeline 1; In this embodiment, the traction base 4 provided on the traction mechanism 2 is started through the connection seat 38 provided at the front end of the traction base 4, so that it drives the moving wheels 5 on both sides to realize movement in the underground pipeline 1, and the first gear 29 is provided on the rear moving wheel 5, so that the first gear 29 is engaged with the second gear 30, so that when the traction mechanism 2 travels in the underground pipeline 1, the second gear 30 is driven by the moving wheel 5, and the first support shaft 31 is driven, so that the first conveying roller 12 provided on the first support shaft 31 rotates, and the traction rope 10 wound therein is released, and at the same time, when the first conveying roller 12 releases the line, the second conveying roller 13 is driven by the traction rope 10 to follow the first conveying roller 12 to release the line, and when the monitoring and placement of the traction rope 10 in the underground pipeline 1 are completed, when the cable can be pulled and laid, the second conveying roller 13 drives the second support shaft 35 through the first motor 36, so that it completes the work of taking up the traction rope 10; In this embodiment, the clamping mechanism 3 includes a connecting block 17 arranged at the front end, a limiting tube 18 arranged at the lower end of the connecting block 17, and a first limiting piece 20 and a second limiting piece 21 arranged at the rear side and one side of the limiting tube 18, so that the connecting block 17 is connected and fixed to the traction rope 10 through the connecting block 17 arranged at the front end of the clamping mechanism 3, and bolts are installed through bolt holes 22 arranged at the connecting ends of the connecting block 17 and the limiting tube 18, so that the clamping mechanism 3 and the traction rope 10 are connected, and the cable head is arranged in an L shape in the limiting tube 18 through the cable groove 23 arranged on the inner side of the limiting tube 18, and the knob 19 provided on the limiting tube 18 is rotated to clamp the cable in the limiting tube 18 The inner clamping plate 24 of the limiting tube 18 clamps the cable to prevent it from loosening during traction, and at the same time, the first limiting piece 20 and the second limiting piece 21 are threadedly connected through the lower end and one side of the limiting tube 18, thereby realizing double clamping and fixing of the cable, thereby enhancing the stability of the present invention when laying and traction of the cable. Example

[0022] like Figure 1-6As shown, this embodiment discloses a traction laying device for underground cables, which includes an underground pipeline 1 laid underground, a traction mechanism 2 for driving movement inside the underground pipeline 1, and a clamping mechanism 3 connected to the rear side of the traction mechanism 2 for clamping and fixing the cable. The traction mechanism 2 includes a traction base 4, a first buffer column 9 arranged at the front end of the traction base 4, and a monitoring mechanism 14 arranged at the front end of the bottom of the traction base 4 for monitoring the inside of the underground pipeline 1. Moving wheels 5 are arranged at the four corners of the outer side of the traction base 4 to fit the inner wall of the underground pipeline 1. Two moving wheels on one side of the traction base 4 are arranged. A first buffer block 6 that fits the inner wall of the underground pipeline 1 is arranged between the wheels 5, a group of first conveying rollers 12 and second conveying rollers 13 that can move forward and backward relative to the cable laying surface is arranged in the middle of the traction base 4, a traction rope 10 is wound inside the first conveying roller 12 and the second conveying roller 13, the traction mechanism 2 is connected to the clamping mechanism 3 through the traction rope 10, and the clamping mechanism 3 includes a hollow limiting tube 18, a connecting block 17 installed at the front end of the limiting tube 18 and connected to the traction mechanism 2, and a first limiting member 20 and a second limiting member 21 arranged at the rear end and one side for clamping and fixing the cable; Specifically, the first limiting member 20 and the second limiting member 21 have the same structure. The first limiting member 20 includes a connecting plate 25 and an outer clamping plate 26. The connecting plate 25 is threadedly connected to the limiting tube 18, and the outer clamping plate 26 is threadedly connected to the cable. A group of first bolt columns 27 are arranged on the connecting plate 25, and two groups of second bolt columns 28 are arranged on the outer clamping plate 26. A cable groove 23 is arranged inside the limiting tube 18, and the cable groove 23 is arranged in an L shape. Inner clamping plates 24 are installed on both sides of the L-shaped cable groove 23, and the inner clamping plate 24 is connected to the arrangement The knob 19 on the outside of the limiting tube 18 is connected to the connecting block 17. The connecting ends of the limiting tube 18 and the knob 19 are symmetrically provided with bolt holes 22 for installing fixing bolts, which are used to clamp the cable through the limiting tube 18 provided by the clamping mechanism 3 and the first limiting member 20 and the second limiting member 21 provided on the limiting tube 18, so that the cable can be clamped to achieve the effect of double clamping and fixing the cable, so that the stability of the present invention when laying and pulling the cable can be enhanced to ensure that it does not fall off during the pulling process; Specifically, the first buffer column 9 includes a lighting lamp 8 arranged at the front end and second buffer blocks 7 arranged on both sides, the second buffer block 7 includes a second buffer pulley 39 attached to the inner wall of the underground pipeline 1 and a return spring 40 and a second buffer spring 41 arranged on the inner side of the first buffer column 9, and a connecting seat 38 is also provided at the connecting end of the first buffer column 9 and the traction base 4. The first buffer block 6 includes a first buffer pulley 32 attached to the inner wall of the underground pipeline 1 and a second buffer column 33 arranged on the outer side of the traction base 4. The first buffer pulley 32 has the same structure as the second buffer pulley 39, and a first buffer spring 34 is arranged inside the second buffer column 33. The connecting seat 38 is provided with a second motor 37 on the inner side of the lower end of the traction base 4. The second motor 37 is a dual-axis motor. Both sides of the second motor 37 are connected to the moving wheel 5 at the outer front end of the traction base 4 through a transmission rod, and the lower end of the second motor 37 is provided with a first motor 36, and the upper end of the first motor 36 is provided with a first motor 36. A second support shaft 35 is arranged between the first motor 36, and the second support shaft 35 is connected to the second conveying roller 13. A first support shaft 31 is arranged at the lower end of the first motor 36, and the first support shaft 31 is connected to the first conveying roller 12. A second gear 30 is connected to the second gear 30 through a transmission rod on one side of the first support shaft 31, and the second gear 30 is connected to the first gear 29. The first gear 29 is arranged on the inner side of the moving wheel 5, and is used to ensure the overall stability of the traction mechanism 2 when it is driven in the underground pipeline 1 through the first buffer block 6 and the second buffer block 7, and to achieve stable steering in the underground pipeline 1 through the second buffer block 7. At the same time, the first gear 29 is driven by the rotation of the moving wheel 5 to rotate through the first support shaft 31, and cooperates with the traction rope 10 fixed at the entrance end of the underground pipeline 1 to follow the traction mechanism 2 to move and release the line, so that it can complete the lighting, monitoring, placement and recovery of the traction rope 10 used for cable laying when the traction mechanism 2 is driven inside the underground pipeline 1; Specifically, the monitoring mechanism 14 is provided with a power supply, a control and a monitoring part, and the power supply, the control and the monitoring parts are all electrically connected. The power supply and the control are both arranged in the traction base 4. The power supply part is electrically connected to a first motor 36 for driving in the underground pipeline 1 and a second motor 37 for driving the first conveying roller 12 and the second conveying roller 13 to reel in the traction rope 10. The control part is electrically connected to a wireless transceiver 15 arranged at the top outside the monitoring mechanism 14, and the monitoring part is electrically connected to a camera 16 arranged at the front end outside the monitoring mechanism 14.

[0023] When in use, first, the staff places the traction mechanism 2 inside the underground pipeline 1. At the same time, the first buffer block 6 and the second buffer block 7 provided on both sides of the traction mechanism 2 make the first buffer pulley 32 and the second buffer pulley 39 fit on the inner wall of the underground pipeline 1 through the internal buffer spring, so that the traction mechanism 2 has a certain stability when it moves. At the same time, when the traction mechanism 2 moves in the underground pipeline 1, the staff remotely controls the traction mechanism 2 through the wireless transceiver 15 provided on the monitoring mechanism 14, and displays the defects inside the underground pipeline 1 and the hidden dangers endangering the safety of cable laying collected by the camera 16 in real time, and sends out a positioning signal, so that it can take effective measures in time to ensure the safety of cable laying ... The moving wheel 5 on the rear side of the mechanism 2 follows the moving wheel 5 on the front side to rotate in the underground pipeline 1, so that the moving wheel 5 on the rear side drives the first support shaft 31 through the first gear 29 gear, so that it follows the traction mechanism 2 to move and release the line. After the underground pipeline 1 is monitored and the line is released through the traction mechanism 2, it is connected to the clamping mechanism 3 through the traction rope 10, and the cable is doubly clamped by the inner clamping plate 24 inside the limiting tube 18 and the first and second limiting members 20 and 21 outside to ensure the firmness of the cable clamping. At the same time, after the traction rope 10 passes through the outside of the line release, it completes the traction and laying work of the cable in the underground pipeline 1. Finally, the first motor 36 drives the second conveying roller 13 through the second support shaft 35 to recycle the traction rope 10.

[0024] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A traction and laying device for underground cables, comprising an underground pipeline (1) laid underground, a traction mechanism (2) for driving movement inside the underground pipeline (1), and a clamping mechanism (3) connected to the rear side of the traction mechanism (2) for clamping and fixing the cable, characterized in that: The traction mechanism (2) comprises a traction base (4), a first buffer column (9) arranged at the front end of the traction base (4), and a monitoring mechanism (14) arranged at the front end of the bottom of the traction base (4) for monitoring the inside of the underground pipeline (1). Moving wheels (5) are arranged at the four corners of the outer side of the traction base (4) to fit the inner wall of the underground pipeline (1). A first buffer block (6) is arranged between two moving wheels (5) on one side of the traction base (4) to fit the inner wall of the underground pipeline (1). A group of first conveying rollers (12) and second conveying rollers (13) capable of moving forward and backward relative to the cable laying surface are arranged in the middle of the traction base (4). A traction rope (10) is wound inside each of the first conveying rollers (12) and the second conveying rollers (13). The traction mechanism (2) is connected to the clamping mechanism (3) via the traction rope (10).

2. A traction and laying device for underground cables according to claim 1, characterized in that: The clamping mechanism (3) comprises a limiting tube (18) with a K-shaped structure, a connecting block (17) installed at the front end of the limiting tube (18) and connected to the traction mechanism (2), and a first limiting member (20) and a second limiting member (21) arranged at the rear end and one side for clamping and fixing the cable, the first limiting member (20) and the second limiting member (21) having the same structure, the first limiting member (20) comprising a connecting plate (25) and an outer clamping plate (26), the connecting plate (25) being threadedly connected to the limiting tube (18), the outer clamping plate (26) being threadedly connected to the cable, the connecting plate (25) being provided with a group of first bolt columns (27), and the outer clamping plate (26) being provided with two groups of second bolt columns (28).

3. A traction and laying device for underground cables according to claim 2, characterized in that: A cable groove (23) is arranged inside the position limiting tube (18), the cable groove (23) is arranged in an L-shape, inner clamping plates (24) are installed on both sides of the L-shape of the cable groove (23), and the inner clamping plates (24) are connected to knobs (19) arranged outside the position limiting tube (18).

4. The traction and laying device for underground cables according to claim 1, characterized in that: The limiting tube (18) is connected to the connecting block (17), and the connecting ends of the limiting tube (18) and the knob (19) are symmetrically provided with bolt holes (22) for installing fixing bolts.

5. The traction and laying device for underground cables according to claim 1, characterized in that: The first buffer column (9) comprises a lighting lamp (8) arranged at the front end and second buffer blocks (7) arranged at both sides; the second buffer blocks (7) comprise a second buffer pulley (39) fitted to the inner wall of the underground pipeline (1) and a return spring (40) and a second buffer spring (41) arranged inside the first buffer column (9); a connecting seat (38) is further arranged at the connecting end of the first buffer column (9) and the traction base (4); the first buffer block (6) comprises a first buffer pulley (32) fitted to the inner wall of the underground pipeline (1) and a second buffer column (33) arranged outside the traction base (4); the first buffer pulley (32) and the second buffer pulley (39) have the same structure; and a first buffer spring (34) is arranged inside the second buffer column (33).

6. A traction and laying device for underground cables according to claim 5, characterized in that: The connecting seat (38) is provided with a second motor (37) on the inner side of the lower end of the traction base (4); the second motor (37) is a double-axis motor; both sides of the second motor (37) are connected to the moving wheel (5) at the front end of the outer side of the traction base (4) through a transmission rod; and a traction groove (11) is provided on the rear side of the traction base (4).

7. A traction and laying device for underground cables according to claim 6, characterized in that: A first motor (36) is arranged at the lower end of the second motor (37); a second support shaft (35) is arranged in the middle of the upper end of the first motor (36); the second support shaft (35) is connected to the second conveying roller (13); a first support shaft (31) is arranged at the lower end of the first motor (36); the first support shaft (31) is connected to the first conveying roller (12); the first conveying roller (12) and the second conveying roller (13) are arranged in the traction groove (11).

8. The traction and laying device for underground cables according to claim 7, characterized in that: One side of the first support shaft (31) is connected to a second gear (30) via a transmission rod, the second gear (30) is connected to a first gear (29), and the first gear (29) is arranged on the inner side of the moving wheel (5).

9. The traction and laying device for underground cables according to claim 1, characterized in that: The monitoring mechanism (14) is provided with a power supply, a control and a monitoring part, the power supply, the control and the monitoring part are all electrically connected, and the power supply and the control are both provided in the traction base (4).

10. A traction and laying device for underground cables according to claim 9, characterized in that: The power supply part is electrically connected to a first motor (36) for driving in the underground pipeline (1) and a second motor (37) for driving the first conveying roller (12) and the second conveying roller (13) to reel in the traction rope (10); the control part is electrically connected to a wireless transceiver (15) arranged at the top of the outside of the monitoring mechanism (14); and the monitoring part is electrically connected to a camera (16) arranged at the front end of the outside of the monitoring mechanism (14).

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