Cable laying auxiliary device

Abstract

The utility model discloses an auxiliary device for cable laying, relates to the field of cable laying, and aims to solve the problems that the labor intensity of constructors is high and a cable insulating layer is easy to damage in the existing cable laying mode, the auxiliary device comprises a movable chassis, one side of the movable chassis is fixedly connected with a pull rod, and the other side of the movable chassis is fixedly connected with a winding frame. A driving shaft is rotationally connected to the winding frame, a winding wheel is fixedly connected to the driving shaft, a fixed pulley is arranged on the side edge of the winding wheel and rotationally connected with the winding frame, a thread end fixing hole is formed in the winding wheel, and a one-way brake is coaxially and rotationally connected to the driving shaft. The cable laying device has the advantages that the labor intensity of operators is relieved, the efficiency and the quality of cable laying are improved, and meanwhile, the safety and the stability of the cable in the laying process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, and in particular to a cable laying auxiliary device. Background Technology

[0002] In many fields such as power engineering and telecommunications engineering, cable laying is a crucial step, and its quality and efficiency directly affect the progress of the entire project and its subsequent performance. Currently, cables are usually packaged in coils after leaving the factory for easy transportation and storage. While this packaging method effectively reduces the space occupied by the cables and improves transportation efficiency, the large size of the coils causes inconvenience during actual laying.

[0003] Traditional cable laying methods primarily rely on workers pulling one end of the cable to rotate the cable reel on a fixed support. In the initial stages of laying, due to the short cable length, the overall weight and resistance to movement are relatively low, allowing workers to complete the operation relatively easily. However, as the laying progresses and the cable is continuously pulled out, its length gradually increases, and the weight of the cable and the resistance encountered during movement also increase significantly. This leads to a greater workload for workers, and prolonged high-intensity physical labor not only increases fatigue and reduces work efficiency but also may cause safety accidents due to exhaustion, posing a threat to the workers' health.

[0004] More importantly, in traditional laying methods, the outer insulation layer of the cable inevitably rubs against external objects during the pulling process. The cable insulation layer plays a crucial role in ensuring the normal operation and safety of the cable; it effectively prevents current leakage, avoids electric shock accidents, and protects the internal conductors from environmental corrosion. However, in actual laying processes, due to the lack of effective protective measures, frequent friction between the cable insulation layer and the ground, supports, or other obstacles easily damages the insulation layer. Once the insulation layer is damaged, it not only affects the electrical performance of the cable and reduces its service life, but may also cause safety hazards such as leakage, seriously impacting the quality and safety of the entire project. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a cable laying auxiliary device, which effectively solves the problems of high labor intensity for construction workers and easy damage to cable insulation layer in the existing cable laying methods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a mobile chassis, a pull rod fixedly connected to one side of the mobile chassis, a winding frame fixedly connected to the other side of the mobile chassis, a drive shaft rotatably connected to the winding frame, a winding wheel fixedly connected to the drive shaft, a fixed pulley provided on the side of the winding wheel, the fixed pulley being rotatably connected to the winding frame, a wire end fixing hole provided inside the winding wheel, a one-way brake rotatably connected to the drive shaft, the one-way brake being rotatably connected to the winding frame, and a locking block for fixing the one-way brake provided on the winding frame;

[0007] The circumference of the winding wheel is an integer multiple of the standard length. The circumferential surface of the winding wheel is provided with a length marking line that surrounds it. The zero mark of the length marking line is directly opposite to the tangent direction of the fixed pulley.

[0008] Preferably, the take-up reel includes a fixed sleeve, which is fixedly connected to the drive shaft. Two sets of symmetrically distributed support rings are fixedly connected to the fixed sleeve, and a plurality of circumferentially distributed semi-rings are fixedly connected between the two sets of support rings.

[0009] Preferably, the wire end fixing hole passes through the fixing sleeve, the fixing sleeve is provided with a bolt hole, the bolt hole intersects with the wire end fixing hole, and a fixing bolt is threaded into the bolt hole.

[0010] Preferably, the one-way brake includes a bushing, which is rotatably connected to the drive shaft and the take-up frame. A brake disc is fixedly connected to the bushing, and a pawl is rotatably connected inside the brake disc. A ratchet is engaged on the side of the pawl, and the ratchet is fixedly connected to the drive shaft.

[0011] Preferably, the brake disc has a limiting groove on its cylindrical surface, the locking block is located below the brake disc, a guide rod is fixedly connected below the locking block, the guide rod is slidably connected to the winding frame, and a spring is sleeved on the guide rod to apply upward force to the locking block.

[0012] Preferably, a traction handle is installed at the end of the pull rod, and a traction rope is fixedly connected between the traction handle and the guide rod.

[0013] Preferably, the mobile chassis is fixedly connected to a support leg, the support leg is provided with a roller on its side, the roller is rotatably connected to a wheel frame, and the wheel frame is fixedly connected to the winding frame.

[0014] Preferably, the wheel frame includes a first support rod and a second support rod, the first support rod and the second support rod are rotatably connected to the roller, the other end of the first support rod is hinged to the winding frame, the other end of the second support rod is hinged to a slider, the slider is slidably connected to the winding frame, and a locking bolt is installed between the slider and the winding frame.

[0015] Compared with the prior art, the outstanding advantages of this utility model are:

[0016] This invention features a cable winding wheel mounted on a mobile chassis. When laying cables, the winding wheel winds up the appropriate length of cable onto the winding frame near the cable roll. This short-distance winding reduces the labor intensity of workers and avoids damage to the cable's insulation shell during dragging.

[0017] This invention allows for precise measurement of the cable winding length using a winding reel. Combined with existing rangefinders, it enables the laying length to be matched with the actual length during cable installation, avoiding cutting waste and reducing resource consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the winding reel structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the one-way brake structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0022] Figure 5 This is a schematic diagram of the forward connection structure of the roller of this utility model.

[0023] Figure 6 This is a schematic diagram of the upper cross-sectional structure of the winding rack of this utility model.

[0024] The following are the labeling elements in the diagram: 1. Movable chassis; 2. Tie rod; 3. Retractor; 4. Drive shaft; 5. Retractor wheel; 501. Fixing sleeve; 502. Support ring; 503. Semi-ring; 504. Bolt hole; 505. Fixing bolt; 6. Fixed pulley; 7. Wire end fixing hole; 8. One-way brake; 801. Bushing; 802. Brake disc; 803. Pawl; 804. Ratchet; 805. Limiting groove; 9. Locking block; 10. Guide rod; 11. Spring; 12. Support leg; 13. Roller; 14. First support rod; 15. Second support rod; 16. Slider; 17. Locking bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see the appendix Figure 1-3 This embodiment discloses a cable laying auxiliary device, comprising a movable chassis 1, a pull rod 2 fixedly connected to one side of the movable chassis 1, a winding frame 3 fixedly connected to the other side of the movable chassis 1, a drive shaft 4 rotatably connected to the winding frame 3, a winding wheel 5 fixedly connected to the drive shaft 4, a fixed pulley 6 provided on the side of the winding wheel 5, the fixed pulley 6 rotatably connected to the winding frame 3, a wire end fixing hole 7 provided inside the winding wheel 5, a one-way brake 8 rotatably connected to the drive shaft 4, the one-way brake 8 rotatably connected to the winding frame 3, and a locking block 9 for fixing the one-way brake 8 provided on the winding frame 3.

[0028] The mobile chassis 1 serves as the basic support structure for the entire device. Rolling casters are installed on the left side of the bottom of the mobile chassis 1, and support legs 12 are installed on the right side of the bottom of the mobile chassis 1. The bottom surface of the support legs 12 is on the same horizontal plane as the lowest point of the casters, facilitating the movement and stable placement of the entire device. There are two sets of pull rods 2, located on the right side of the mobile chassis 1, allowing operators to easily pull the device. A winding frame 3 is located on the right side of the mobile chassis 1, providing a support platform for the winding wheel 5. The winding frame 3 supports the winding wheel 5 at the upper part of the mobile chassis 1, with the winding wheel 5 positioned above the midpoint of the mobile chassis 1. The winding reel 5 can have a larger diameter. A fixed pulley 6 is provided on the right side of the winding reel 5. When laying the cable, the cable end inside the cable reel is fixed to the cable end fixing hole 7 through the fixed pulley 6. After the cable end is fixed, the winding reel is rotated by rotating the drive shaft 4. After the winding reel 5 rotates, the cable is wound on the winding reel. The one-way limiter on the drive shaft 4 is to prevent the winding reel 5 from rotating during the cable winding process. The one-way brake 8 is fixed to the winding frame 3 by the locking block 9. When releasing the cable on the winding frame 3, the locking block 9 is released from the fixing of the one-way brake 8. The one-way brake 8, drive shaft 4 and winding reel 5 can rotate in opposite directions to complete the release of the cable.

[0029] Furthermore, the diameter of the winding wheel 5 on the winding frame 3 is fixed. This allows the circumference of the winding wheel 5 to be calculated. When winding the cable, the number of rotations of the winding wheel 5 can be precisely controlled according to the required cable length. This ensures that the cable length on the winding wheel 5 matches the actual required length, avoiding excessive cable loss.

[0030] The retaining sleeve 501 inside the take-up reel 5 is coaxially and fixedly connected to the drive shaft 4. The shaft diameter of the retaining sleeve 501 is larger than that of the drive shaft 4. There are support rings 502 on both the front and rear sides of the retaining sleeve 501. Multiple semi-rings 503 are spaced apart on the ring body of the two support rings 502, with gaps between them. When fixing the cable, the cable head passes through the gap between the two semi-rings 503 and enters the cable head fixing hole 7 inside the retaining sleeve 501. Then, by rotating the fixing bolt 505, the end of the fixing bolt 505 passes through the bolt hole 504 and presses against the cable head, thus completing the fixing of the cable head. Figure 2 As shown, the two support rings 502 are connected by a semi-ring 503. The U-shaped structure of the semi-ring 503 provides sufficient storage space for the cable when winding it up, making it convenient to store more cables.

[0031] like Figure 3 As shown, the bushing 801 and brake disc 802 in the one-way brake 8 have through holes for the drive shaft 4 to pass through. The bushing 801 is rotatably mounted to the winding rack 3. A groove is opened on the front side of the brake disc 802, and a ratchet 804 and a pawl 803 are installed in the groove. The ratchet 804 is rotatably connected to the brake disc 802. A handle is installed on the front side of the ratchet 804. Rotating the handle can drive the ratchet 804 and the drive shaft 4 to rotate. Under the action of the pawl 803, the ratchet 804 can only rotate in one direction. The unidirectional rotation of the ratchet 804 drives the drive shaft 4 and the winding wheel 5 to perform cable winding. After the cable is wound, multiple sets of limiting grooves 805 are present on the cylindrical surface of the brake disc 802. The locking block 9 moves upward into the limiting groove 805 under the action of the spring 11, thereby restricting the movement of the brake disc 802 and the winding rack 3. The degree of freedom of rotation between the two is as follows: When laying the cable, the worker pulls the movable chassis 1 by pulling the lever 2. During the movement, the worker drives the guide rod 10 downward by using the handle and the traction rope. The downward movement of the guide rod 10 drives the locking block 9 downward. After the locking block 9 disengages from the limiting groove 805, there is a degree of rotational freedom between the brake disc 802 and the winding frame 3. Under the tension of the cable, the winding wheel 5, the drive shaft 4 and the brake disc 802 rotate synchronously in opposite directions. The direction of rotation of the winding wheel 5 at this time is opposite to the direction of rotation when the cable is wound. In this way, the cable on the winding wheel 5 will be laid in the position that the movable chassis 1 has passed through, completing the cable laying work. The structure of the handle and the traction rope is the same as the structure of the brake handle of the existing tram, which is existing technology and will not be described in detail here.

[0032] Example 2

[0033] The structure is the same as in the above embodiments, such as... Figure 4-6 As shown, the specific difference in this embodiment is that: a support leg 12 is fixedly connected to the bottom of the mobile chassis 1, a roller 13 is provided on the side of the support leg 12, a wheel frame is rotatably connected to the roller 13, and the wheel frame is fixedly connected to the winding frame 3; the wheel frame includes a first support rod 14 and a second support rod 15, the first support rod 14 and the second support rod 15 are rotatably connected to the roller 13, the other end of the first support rod 14 is hinged to the winding frame 3, the other end of the second support rod 15 is hinged to a slider 16, the slider 16 is slidably connected to the winding frame 3, and a locking bolt 17 is installed between the slider 16 and the winding frame 3.

[0034] During cable laying, to ensure the rollers 13 of the mobile chassis 1 can adapt to different road conditions, an adjustable single-wheel structure is installed under the mobile chassis 1. There is one roller 13, with a first support rod 14 and a second support rod 15 hinged to both sides of the roller 13. The first support rod 14 and the second support rod 15 are arranged in a V-shape. The other end of the first support rod 14 is hinged to the right side of the winding frame 3, and the other end of the second support rod 15 is hinged to a slider 16. The slider 16 slides vertically on the left side of the winding frame 3. Figure 5 As shown, when the slider 16 moves downward, it drives the second support rod 15 to move downward, which in turn causes the first support rod 14 to swing downward, ultimately causing the roller 13 to swing downward, increasing the distance between the lowest point of the roller 13 and the bottom of the mobile chassis 1. This prevents the mobile chassis 1 from getting stuck on uneven surfaces. When the road conditions are good, the distance between the two is reduced. At this time, the center of gravity of the mobile chassis 1 is lower, making it more stable when pulled. The slider 16 and the winding frame 3 are fixed by locking bolts 17.

[0035] The overall workflow of this utility model is as follows: One end of the cable is passed through the fixed pulley 6 and inserted into the cable end fixing hole 7 inside the winding wheel 5. Then, the fixing bolt 505 is screwed into the bolt hole 504, so that the end of the bolt abuts against the cable, thereby fixing the cable on the winding wheel 5. Then, the distance between the two points is measured with a rangefinder. Based on this distance value, the winding wheel 5 is rotated a specific number of turns so that the length of the cable released on the winding wheel 5 is consistent with the distance value. After the winding wheel 5 has finished winding, the device is moved to another point of cable laying by pulling the pull rod 2. During the movement, the operator pulls the handle to make the locking block 9 disengage from the limiting groove 805 of the brake disc 802, releasing the restriction on the one-way brake 8. The winding wheel 5 rotates in the opposite direction, laying the cable in the area that the device has passed through, thereby completing the cable laying work, reducing the labor intensity of the operator, improving the efficiency and quality of cable laying, and ensuring the safety and stability of the cable during the laying process.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable laying auxiliary device, characterized in that: The device includes a mobile chassis (1), a pull rod (2) fixedly connected to one side of the mobile chassis (1), a winding frame (3) fixedly connected to the other side of the mobile chassis (1), a drive shaft (4) rotatably connected to the winding frame (3), a winding wheel (5) fixedly connected to the drive shaft (4), a fixed pulley (6) provided on the side of the winding wheel (5), the fixed pulley (6) rotatably connected to the winding frame (3), a wire end fixing hole (7) provided in the winding wheel (5), a one-way brake (8) rotatably connected to the drive shaft (4), the one-way brake (8) rotatably connected to the winding frame (3), and a locking block (9) for fixing the one-way brake (8) provided on the winding frame (3). The circumference of the winding wheel (5) is an integer multiple of the standard length. The circumferential surface of the winding wheel (5) is provided with a length marking line that surrounds it. The zero mark of the length marking line is directly opposite to the tangent direction of the fixed pulley (6).

2. The cable laying auxiliary device according to claim 1, characterized in that: The winding reel (5) includes a fixed sleeve (501), which is fixedly connected to the drive shaft (4). Two sets of symmetrically distributed support rings (502) are fixedly connected to the fixed sleeve (501), and multiple circumferentially distributed semi-rings (503) are fixedly connected between the two sets of support rings (502).

3. The cable laying auxiliary device according to claim 2, characterized in that: The wire end fixing hole (7) passes through the fixing sleeve (501), and the fixing sleeve (501) is provided with a bolt hole (504). The bolt hole (504) intersects with the wire end fixing hole (7), and a fixing bolt (505) is internally threaded into the bolt hole (504).

4. The cable laying auxiliary device according to claim 1, characterized in that: The one-way brake (8) includes a bushing (801), which is rotatably connected to the drive shaft (4) and the winding frame (3). A brake disc (802) is fixedly connected to the bushing (801), and a pawl (803) is rotatably connected inside the brake disc (802). A ratchet (804) is fitted on the side of the pawl (803), and the ratchet (804) is fixedly connected to the drive shaft (4).

5. The cable laying auxiliary device according to claim 4, characterized in that: The brake disc (802) has a limiting groove (805) on its cylindrical surface. The locking block (9) is located below the brake disc (802). A guide rod (10) is fixedly connected below the locking block (9). The guide rod (10) is slidably connected to the winding frame (3). A spring (11) is sleeved on the guide rod (10) to apply upward force to the locking block (9).

6. The cable laying auxiliary device according to claim 5, characterized in that: The end of the pull rod (2) is equipped with a traction handle, and a traction rope is fixedly connected between the traction handle and the guide rod (10).

7. The cable laying auxiliary device according to claim 1, characterized in that: The mobile chassis (1) is fixedly connected to a support leg (12), and the support leg (12) is provided with a roller (13) on its side. The roller (13) is rotatably connected to a wheel frame, and the wheel frame is fixedly connected to the winding frame (3).

8. The cable laying auxiliary device according to claim 7, characterized in that: The wheel frame includes a first support rod (14) and a second support rod (15). The first support rod (14) and the second support rod (15) are rotatably connected to the roller (13). The other end of the first support rod (14) is hinged to the winding frame (3). The other end of the second support rod (15) is hinged to a slider (16). The slider (16) is slidably connected to the winding frame (3). A locking bolt (17) is installed between the slider (16) and the winding frame (3).

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