A cable erection and bedding apparatus for underground cable installation

Abstract

The application provides a cable erection and paving device for underground cable installation, and relates to the technical field of cable erection and paving. The cable erection and paving device for underground cable installation comprises a cable erection and paving device body, two first supporting blocks are fixedly connected to the top of the cable erection and paving device body, and rotating rods are slidably connected to the first supporting blocks. The cable erection and paving device for underground cable installation can drive the fixed blocks to move downwards when the threaded rods rotate, the fixed blocks can press the cable wires at one end of the protective layer and the bottom of the protective layer, then the third motor and the second motor are started at the same time, a layer of protective layer can be laid on the cable wires while the cable wires are laid, the damage of the cable wires caused by the gravity crushing of the cable wires when the cable wires are laid underground is prevented, and the service life of the cable wires is prolonged, the time and manpower can be saved by laying the protective layer while laying the cable wires.

Description

Technical Field

[0001] This invention relates to a cable laying device, specifically a cable laying device for underground cable installation, and belongs to the field of cable laying technology. Background Technology

[0002] Depending on the application, cable laying can be divided into several methods, such as overhead, underground (pipe and direct burial), underwater, wall and tunnel. In construction, considering aesthetics, underground laying is often used for cables.

[0003] According to patent number CN 115636299 A, the invention belongs to the field of cable laying, specifically a cable laying device, including a housing; two sets of drive motors are fixedly connected to the top of the housing near the center of the two side walls; a first transmission wheel is fixedly connected to the output end of the motor; a conveyor belt is movably connected to the center of the housing; multiple sets of damping rods are fixedly connected to the bottom of the housing; a first spring is sleeved on the damping rod; a support rod is fixedly connected to one side wall of the support block; a roller is sleeved on the other end of the support rod; by placing one end of the cable between the conveyor belt and the roller, since the roller is connected to the first spring and damping rod below through the support rod and the support block, cables of different sizes will squeeze the first spring and damping rod below the roller, and the first spring and damping rod can retract to suit the laying of cables of different sizes. After the motor starts, under the support of the roller, the cable will be close to the conveyor belt, so the conveyor belt will transmit and lay the cable by friction.

[0004] The above comparative documents show the following problems in cable laying: when the cable is buried underground, the ground will be subjected to external pressure, and there are no protective measures for the cable. When subjected to external heavy crushing, the cable will be damaged, reducing its service life. Adding a layer of protective cotton after laying the cable is a waste of time and manpower. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a cable laying device for underground cable installation in order to solve the above-mentioned problems. In the prior art, when cables are buried underground, they are subjected to external pressure on the ground without any protective measures. When subjected to external heavy crushing, the cables will be damaged, reducing their service life. Adding a layer of protective cotton after laying the cables is time-consuming and labor-intensive.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a cable laying device for underground cable installation, comprising a cable laying device body, two first support blocks fixedly connected to the top of the cable laying device body, a rotating rod slidably connected inside the first support block, a first gear fixedly connected to the outside of the rotating rod, a rack meshing with the bottom of the first gear, the rack fixedly connected to one side of one of the first support blocks, a sliding groove opened inside the first support block, the rotating rod and the first support block being slidably connected through the sliding groove, two connecting blocks rotatably connected to the outside of the rotating rod, the connecting blocks being used to drive a first round rod to move together with the connecting blocks, thereby adding a layer of protection to the cable while laying the cable, the first round rod being rotatably connected inside the connecting block, a first pulley fixedly connected to the outside of both the rotating rod and the first round rod, a first belt provided on the outside of the first pulley, and a protective layer fixedly connected to the outside of the first round rod;

[0009] A transmission assembly is provided on the outer side of the first round rod, and a fast cable laying assembly for cable laying is provided at the bottom of the protective layer.

[0010] Preferably, the transmission assembly includes three second pulleys, with a second belt disposed on the outer side of each second pulley. A second round rod is fixedly connected inside one of the second pulleys, and a round roller is fixedly connected inside the other second pulley. A protrusion is rotatably connected to one side of the round roller, and a second telescopic rod and a second spring are fixedly connected to the bottom of the protrusion. The second spring is disposed on the outer side of the second telescopic rod. The second telescopic rod and the second spring are fixedly connected to the top of one of the connecting blocks. A rotating plate is fixedly connected to the outer side of the third second pulley, and a first telescopic rod and a first spring are fixedly connected to one side of the rotating plate. The first spring is disposed on the outer side of the first telescopic rod. By setting the second telescopic rod and the second spring, the round roller can be driven to move downward, always keeping the round roller in contact with the protective layer. This not only prevents the protective layer from scattering when unfolded, but also allows the protective layer to unfold evenly.

[0011] Preferably, the transmission assembly further includes a third gear, which is fixedly connected to the outside of the second round rod. The second round rod is rotatably connected to one side of one of the connecting blocks. The bottom of the third gear is meshed with a second gear, which is fixedly connected to the outside of the first round rod. By setting the second gear and the third gear, the rotation direction of the round roller is changed, so that the rotation directions between the round roller and the protective layer are opposite.

[0012] Preferably, the rapid cable laying assembly includes a third round rod that passes through the cable laying device body and is rotatably connected to it. A limiting plate is fixedly connected to the outer side of the third round rod, and a fourth round rod is rotatably connected to one side of the limiting plate. Multiple cable reels are provided on the outer side of the fourth round rod, and two threaded sleeves are threadedly connected to the outer side of the fourth round rod. A limiting assembly is provided on the outer side of the fourth round rod. The limiting plate is used to support the fourth round rod, so that the direction of the fourth round rod can change with the direction of the limiting plate.

[0013] Preferably, the limiting component includes two arc-shaped blocks, one side of which is set as an arc surface. The arc-shaped blocks are slidably connected to the inside of the cable laying device body. A third telescopic rod and a third spring are fixedly connected to one side of the arc-shaped blocks. The third spring is set on the outside of the third telescopic rod. A pull plate is fixedly connected to the top of the arc-shaped blocks. By setting one side of the arc-shaped blocks as an arc surface, when the arc-shaped blocks are squeezed by external force, they can open to both sides, thereby compressing the third telescopic rod and the third spring to retract, and at this time, the fourth round rod is quickly fixed.

[0014] Preferably, a second motor is fixedly connected to one side of the limiting plate, and the output end of the second motor is fixedly connected to the fourth round rod. A first motor is fixedly connected to one side of the cable laying device body, and the output end of the first motor is fixedly connected to the third round rod. The second motor is used to drive the fourth round rod to rotate, and the rotation of the fourth round rod drives the winding reel to rotate, thereby laying out the cable.

[0015] Preferably, support plates are fixedly connected to both sides of the cable laying device body, and the third telescopic rod and the third spring are fixedly connected to one side of the support plate. The support plates are used to support the third telescopic rod and the third spring, which makes the operation of the third telescopic rod and the third spring more stable.

[0016] Preferably, a vertical plate is fixedly connected to the top of one of the connecting blocks, and the first telescopic rod and the first spring are fixedly connected to one side of the vertical plate. The first telescopic rod and the first spring are used to keep the second belt taut at all times, thereby driving the roller to rotate.

[0017] Preferably, an arc-shaped groove is provided on one side of the cable laying device body, and a second support block is slidably connected inside the arc-shaped groove. A third motor is fixedly connected to the top of the second support block, and the output end of the third motor is fixedly connected to the rotating rod. A connecting rod is fixedly connected to one side of the connecting block, and the connecting rod is slidably connected to the first support block. The connecting rod is used to limit the position of the connecting block.

[0018] Preferably, a cable tray is provided at the bottom of the cable laying device body. A limit hole is opened at the bottom inside the cable tray. Two threaded rods are threadedly connected to the bottom inside the cable tray. A fixing block is rotatably connected to the outside of the threaded rods. The fixing block is used to fix the cable and the protective layer.

[0019] This invention provides a cable laying and installation device for underground cable installation, which has the following beneficial effects:

[0020] 1. The cable laying device for underground cable installation involves covering the top of the cable with one end of the protective layer, then aligning the threaded rod with the threaded hole at the top of the cable tray. Rotating the threaded rod causes the fixing block to move downwards, pressing down on the cable at one end and the bottom of the protective layer. Simultaneously, the third and second motors are activated, allowing a protective layer to be laid on the cable while it is being laid underground. This prevents damage to the cable from heavy pressure, reducing its lifespan. Laying the protective layer simultaneously saves time and manpower.

[0021] 2. The cable laying device for this underground cable installation involves a first round rod rotating to drive the protective layer to rotate. Simultaneously, the rotation of the first round rod drives the second gear to rotate, which in turn drives the third gear to rotate in the opposite direction. The third gear then drives the second round rod to rotate, which in turn drives the second pulley to rotate. Through the cooperation of the second pulley and the second belt, the round roller can be driven to rotate. The protrusion is pulled downwards by the second spring, which in turn moves the protrusion downwards, causing the round roller to move downwards. This ensures that the round roller remains in contact with the protective layer, preventing the protective layer from scattering during laying and affecting the laying process. Simultaneously, the counter-rotation of the round roller and the protective layer allows the protective layer to fall evenly to the top of the cable, protecting the cable.

[0022] 3. The cable laying device for underground cable installation involves sliding the cable reels sequentially along the outer side of the fourth round rod. After the reels are inserted, the threaded sleeve can be rotated to fix and limit their movement. Then, the first motor is started, driving the third round rod to rotate. Following the above principle, the fourth round rod is positioned horizontally, facilitating the unloading of cable from the reels. When the fourth round rod is horizontal, it can compress the arc-shaped block to one side. This movement compresses the third spring and the third telescopic rod, allowing the fourth round rod to quickly engage inside the cable laying device body to fix the cable reels. The structure is simple and the operation is convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged view of the A-section structure;

[0025] Figure 3 This is a schematic diagram of the cable tray structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged view of the structure of section B;

[0027] Figure 5 This is a schematic diagram of the structure of the winding reel of the present invention;

[0028] Figure 6 This is a schematic diagram of the arc-shaped block of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the circular roller of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the second pulley of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the third gear of the present invention;

[0032] Figure 10 This is a schematic diagram of the protective layer structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the structure of the first gear of the present invention;

[0034] Figure 12 This is a schematic diagram of the protrusion structure of the present invention;

[0035] Figure 13 This is a schematic diagram of the structure of the second belt of the present invention;

[0036] Figure 14 This is a schematic diagram of the structure of the first spring of the present invention.

[0037] In the diagram: 1. The main body of the cable laying and installation device;

[0038] 2. First support block; 201. Rotating rod; 202. First gear; 203. Rack; 204. Slide groove;

[0039] 3. Connecting block; 301. First round rod; 302. First pulley; 303. First belt; 304. Protective layer;

[0040] 4. Second pulley; 401. Second belt; 402. Rotating plate; 403. First telescopic rod; 404. First spring; 405. Second round rod; 406. Second gear; 407. Third gear; 408. Round roller; 409. Protrusion; 410. Second telescopic rod; 411. Second spring;

[0041] 5. Third round rod; 501. Limiting plate; 502. Fourth round rod; 503. Winding reel; 504. Threaded sleeve; 505. Arc block; 506. Third telescopic rod; 507. Third spring; 508. Pull plate;

[0042] 6. First motor; 7. Second motor; 8. Cable tray; 9. Second support block; 10. Third motor; 11. Threaded rod; 12. Fixing block; 13. Limiting hole; 14. Support plate; 15. Vertical plate; 16. Connecting rod. Detailed Implementation

[0043] This invention provides a cable laying and installation device for underground cable installation.

[0044] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10The rapid cable laying assembly includes a third round rod 5, which penetrates the cable laying device body 1 and is rotatably connected to it. A limit plate 501 is fixedly connected to the outside of the third round rod 5. A fourth round rod 502 is rotatably connected to one side of the limit plate 501. Multiple winding reels 503 are provided on the outside of the fourth round rod 502. Two threaded sleeves 504 are threadedly connected to the outside of the fourth round rod 502. A limit assembly is provided on the outside of the fourth round rod 502. The limit plate 501 is used to control the cable laying. The four circular rods 502 provide support, allowing the direction of the fourth circular rod 502 to change with the direction of the limiting plate 501. The limiting assembly includes two arc-shaped blocks 505, one side of which is curved. The arc-shaped blocks 505 are slidably connected to the inside of the cable laying device body 1. A third telescopic rod 506 and a third spring 507 are fixedly connected to one side of the arc-shaped blocks 505. The third spring 507 is located on the outside of the third telescopic rod 506. A pull plate 508 is fixedly connected to the top of the arc-shaped blocks 505. By setting one side of the arc-shaped block 505 as an arc surface, when the arc-shaped block 505 is squeezed by external force, it can open to both sides to compress the third telescopic rod 506 and the third spring 507 to retract. At this time, the fourth round rod 502 is quickly fixed. The second motor 7 is fixedly connected to one side of the limiting plate 501. The output end of the second motor 7 is fixedly connected to the fourth round rod 502. The first motor 6 is fixedly connected to one side of the cable laying device body 1. The output end of the first motor 6 is fixedly connected to the third round rod 502. The second motor 7 is used to drive the fourth round rod 502 to rotate. The rotation of the fourth round rod 502 drives the winding reel 503 to rotate to lay out the cable. The cable laying device body 1 has support plates 14 fixedly connected to both sides. The third telescopic rod 506 and the third spring 507 are fixedly connected to one side of the support plate 14. The support plate 14 is used to support the third telescopic rod 506 and the third spring 507, so that the operation of the third telescopic rod 506 and the third spring 507 is more stable.

[0045] Specifically, firstly, the two pull plates 508 are pulled to move to both sides. When the two pull plates 508 move to both sides, they can drive the arc block 505 to move to one side. When the arc block 505 moves to one side, it can compress the third telescopic rod 506 and the third spring 507 to retract. At this time, the fourth round rod 502 loses the limit of the arc block 505. Then, the first motor 6 is started to drive the third round rod 5 to rotate. The rotation of the third round rod 5 drives the limit plate 501 to rotate. The rotation of the limit plate 501 drives the fourth round rod 502 to rotate. When the fourth round rod 502 is placed vertically, the winding reel 503 can be slid in along the outside of the fourth round rod 502. When the winding reel 503 is loaded in sequence... After insertion, the threaded sleeve 504 can be rotated to fix and limit the winding reel 503. Then, the first motor 6 is started, which drives the third round rod 5 to rotate. According to the above principle, the fourth round rod 502 can be moved to a horizontal position to facilitate the unloading of the cable on the winding reel 503. When the fourth round rod 502 is in a horizontal position, it can squeeze the arc block 505 to move to one side. The arc block 505 moves to one side to squeeze the third spring 507 and the third telescopic rod 506 to retract, so that the fourth round rod 502 can be quickly inserted into the cable laying device body 1 to fix the winding reel 503. The structure is simple and the operation is convenient.

[0046] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 The device includes a cable laying device body 1. Two first support blocks 2 are fixedly connected to the top of the cable laying device body 1. A rotating rod 201 is slidably connected inside the first support block 2. A first gear 202 is fixedly connected to the outside of the rotating rod 201. A rack 203 is meshed at the bottom of the first gear 202. The rack 203 is fixedly connected to one side of one of the first support blocks 2. A sliding groove 204 is opened inside the first support block 2. The rotating rod 201 and the first support block 2 are slidably connected through the sliding groove 204. Two connecting blocks 3 are rotatably connected to the outside of the rotating rod 201. The connecting blocks 3 are used to drive the first round rod 301 to move together with the connecting blocks 3, thereby adding a layer of protection to the cable while laying the cable. The first round rod 301 is rotatably connected inside the connecting block 3. A first pulley 302 is fixedly connected to the outside of both the rotating rod 201 and the first round rod 301. A first belt 303 is provided on the outside of the first pulley 302. A protective layer 304 is fixedly connected to the outside of the first round rod 301.

[0047] A transmission assembly is provided on the outer side of the first round rod 301, and a fast cable laying assembly for cable laying is provided at the bottom of the protective layer 304.

[0048] The transmission assembly includes three second pulleys 4. A second belt 401 is provided on the outer side of each second pulley 4. A second round rod 405 is fixedly connected inside one of the second pulleys 4. A round roller 408 is fixedly connected inside the other second pulley 4. A protrusion 409 is rotatably connected to one side of the round roller 408. A second telescopic rod 410 and a second spring 411 are fixedly connected to the bottom of the protrusion 409. The second spring 411 is located on the outer side of the second telescopic rod 410. The second telescopic rod 410 and the second spring 411 are fixedly connected to the top of one of the connecting blocks 3. A rotating plate 402 is fixedly connected to the outer side of the third second pulley 4. A first telescopic rod 403 and a first spring 404 are fixedly connected to one side of the rotating plate 402. The first spring 404 is located on the outer side of the first telescopic rod 403. By setting the second telescopic rod 410 and the second spring 411, the round roller 408 can be driven to move downward, so that the round roller 408 is always in contact with the protective layer 304. This not only prevents the protective layer 304 from falling apart when unfolded, but also makes the protective layer 304 unfold evenly.

[0049] The transmission assembly also includes a third gear 407, which is fixedly connected to the outside of the second round rod 405. The second round rod 405 is rotatably connected to one side of one of the connecting blocks 3. The bottom of the third gear 407 is meshed with a second gear 406, which is fixedly connected to the outside of the first round rod 301. By setting the second gear 406 and the third gear 407, the rotation direction of the round roller 408 is changed, so that the rotation direction between the round roller 408 and the protective layer 304 is opposite. A vertical plate 15 is fixedly connected to the top of one of the connecting blocks 3. A first telescopic rod 403 and a first spring 404 are fixedly connected to one side of the vertical plate 15. By setting the first telescopic rod 403 and the first spring 404, the second belt 401 is always kept taut, thereby driving the round roller 408 to rotate.

[0050] An arc-shaped groove is provided on one side of the cable laying device body 1. A second support block 9 is slidably connected inside the arc-shaped groove. A third motor 10 is fixedly connected to the top of the second support block 9. The output end of the third motor 10 is fixedly connected to the rotating rod 201. A connecting rod 16 is fixedly connected to one side of the connecting block 3. The connecting rod 16 is slidably connected to the first support block 2. The connecting rod 16 is used to limit the position of the connecting block 3.

[0051] The bottom of the cable laying device body 1 is provided with a cable tray 8. The bottom of the cable tray 8 has a limit hole 13. The bottom of the cable tray 8 is threaded with two threaded rods 11. The outside of the threaded rods 11 is rotatably connected with a fixing block 12. The fixing block 12 is used to fix the cable and the protective layer 304.

[0052] Specifically, at this time, the third motor 10 is started, which drives the rotating rod 201 to rotate. The rotation of the rotating rod 201 drives the first gear 202 to rotate. The first gear 202 moves along the rack 203. When the first gear 202 moves to the end of the rack 203, the rotating rod 201 remains in place and rotates. When the rotating rod 201 rotates, it drives the first pulley 302 to rotate. Through the cooperation of the first pulley 302 and the first belt 303, it drives the first round rod 301 to rotate. The rotation of the first round rod 301 drives the protective layer 304 to rotate. At the same time, the rotation of the first round rod 301 drives the second gear 406 to rotate. The rotation of the second gear 406 drives the third gear 407 to move in another direction. The rotation of the third gear 407 drives the second round rod 405 to rotate, which in turn drives the second pulley 4 to rotate. Through the cooperation of the second pulley 4 and the second belt 401, the round roller 408 can be driven to rotate. The protrusion 409 is pulled downward by the second spring 411. The downward movement of the second spring 411 drives the protrusion 409 to move downward, which in turn drives the round roller 408 to move downward. This ensures that the round roller 408 is always in contact with the protective layer 304, thereby preventing the protective layer 304 from falling off during the laying process and affecting the laying. At the same time, the rotation of the round roller 408 and the protective layer 304 in opposite directions allows the protective layer 304 to fall evenly to the top of the cable, thus protecting the cable.

[0053] Specifically, while starting the third motor 10, the second motor 7 is also started. The rotation of the second motor 7 drives the fourth round rod 502 to rotate, which in turn drives the winding reel 503 to rotate. Simultaneously, multiple cables are unloaded. When unloading the cables and adding a protective layer, the cables are first inserted sequentially into the limiting holes 13. Then, one end of the protective layer 304 is placed over the top of the cables. Next, the threaded rod 11 is aligned with the threaded hole at the top of the cable tray 8. At this point, the threaded rod 11 is rotated... When the grommets 11 rotate, they can drive the fixing blocks 12 to move downwards. The downward movement of the fixing blocks 12 can press down on one end of the protective layer 304 and the cable at the bottom of the protective layer 304. Then, the third motor 10 and the second motor 7 are started at the same time, so that a protective layer 304 can be laid on the cable at the same time as the cable is laid. This prevents the cable from being damaged by gravity when it is laid underground, thus reducing the cable's service life. Laying the protective layer 304 at the same time as laying the cable can save time and manpower.

[0054] Working principle: When laying the cable and adding a protective layer to the cable, firstly, the cable is inserted into the limiting hole 13 in sequence. Then, one end of the protective layer 304 is placed over the top of the cable. Next, the threaded rod 11 is aligned with the threaded hole at the top of the cable tray 8. At this time, the threaded rod 11 is rotated. When the threaded rod 11 rotates, it can drive the fixing block 12 to move downward. The downward movement of the fixing block 12 can press down on one end of the protective layer 304 and the cable at the bottom of the protective layer 304. Then, the third motor 10 and the second motor 7 are started at the same time, so that a protective layer 304 can be laid on the cable while laying the cable.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A cable laying and installation device for underground cable installation, comprising a cable laying and installation device body (1), characterized in that: The cable laying device body (1) has two first support blocks (2) fixedly connected to the top. A rotating rod (201) is slidably connected inside the first support block (2). A first gear (202) is fixedly connected to the outside of the rotating rod (201). A rack (203) is meshed at the bottom of the first gear (202). The rack (203) is fixedly connected to one side of one of the first support blocks (2). A sliding groove (204) is opened inside the first support block (2). The rotating rod (201) and the first support block (2) are slidably connected through the sliding groove (204). Two connecting blocks (3) are rotatably connected to the outside of the rotating rod (201). A first round rod (301) is rotatably connected inside the connecting block (3). A first pulley (302) is fixedly connected to the outside of both the rotating rod (201) and the first round rod (301). A first belt (303) is provided on the outside of the first pulley (302). A protective layer (304) is fixedly connected to the outside of the first round rod (301). A transmission assembly is provided on the outer side of the first round rod (301), and a fast cable laying assembly for cable laying is provided at the bottom of the protective layer (304). The transmission assembly includes three second pulleys (4), and a second belt (401) is provided on the outer side of the second pulleys (4). A second round rod (405) is fixedly connected inside one of the second pulleys (4), and a round roller (408) is fixedly connected inside the other second pulley (4). A protrusion (409) is rotatably connected to one side of the round roller (408). 09) A second telescopic rod (410) and a second spring (411) are fixedly connected to the bottom. The second spring (411) is located on the outside of the second telescopic rod (410). The second telescopic rod (410) and the second spring (411) are fixedly connected to the top of one of the connecting blocks (3). A rotating plate (402) is fixedly connected to the outside of the third second pulley (4). A first telescopic rod (403) and a first spring (404) are fixedly connected to one side of the rotating plate (402). The first spring (404) is located on the top of the first connecting block (3). Outside the telescopic pole (403), the rapid cable laying assembly includes a third round rod (5), which passes through the cable laying device body (1) and is rotatably connected to it. A limiting plate (501) is fixedly connected to the outside of the third round rod (5), and a fourth round rod (502) is rotatably connected to one side of the limiting plate (501). Multiple winding reels (503) are provided on the outside of the fourth round rod (502), and two threaded sleeves (504) are threadedly connected to the outside of the fourth round rod (502). A limiting component is provided on the outside of the fourth round rod (502). The limiting component includes two arc blocks (505). One side of the arc block (505) is set as an arc surface. The arc block (505) is slidably connected to the inside of the cable laying device body (1). A third telescopic rod (506) and a third spring (507) are fixedly connected on one side of the arc block (505). The third spring (507) is set on the outside of the third telescopic rod (506). A pull plate (508) is fixedly connected to the top of the arc block (505).

2. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: The transmission assembly also includes a third gear (407), which is fixedly connected to the outside of the second round rod (405). The second round rod (405) is rotatably connected to one side of one of the connecting blocks (3). The bottom of the third gear (407) is meshed with a second gear (406), which is fixedly connected to the outside of the first round rod (301).

3. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: A second motor (7) is fixedly connected to one side of the limiting plate (501), and the output end of the second motor (7) is fixedly connected to the fourth round rod (502). A first motor (6) is fixedly connected to one side of the cable laying device body (1), and the output end of the first motor (6) is fixedly connected to the third round rod (5).

4. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: The cable laying device body (1) is fixedly connected to support plates (14) on both sides, and the third telescopic rod (506) and the third spring (507) are fixedly connected to one side of the support plate (14).

5. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: One of the connecting blocks (3) has a vertical plate (15) fixedly connected to its top, and the first telescopic rod (403) and the first spring (404) are fixedly connected to one side of the vertical plate (15).

6. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: The cable laying device body (1) has an arc-shaped groove on one side, and a second support block (9) is slidably connected inside the arc-shaped groove. A third motor (10) is fixedly connected to the top of the second support block (9). The output end of the third motor (10) is fixedly connected to the rotating rod (201). A connecting rod (16) is fixedly connected to one side of the connecting block (3). The connecting rod (16) is slidably connected to the first support block (2).

7. The cable laying and installation device for underground cable installation according to claim 1, characterized in that: The cable laying device body (1) is provided with a cable tray (8) at the bottom. The cable tray (8) has a limit hole (13) at the bottom inside. The bottom inside of the cable tray (8) is threaded with two threaded rods (11). The outside of the threaded rods (11) is rotatably connected with a fixing block (12).

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