Cable tube expansion supporting device

Abstract

The utility model relates to a cable tube expansion supporting device, and belongs to the technical field of power pipeline laying and dredging. According to the technical scheme, a pipeline electric hydraulic expanding machine is arranged at the front end of a pipeline sliding trolley, the pipeline electric hydraulic expanding machine comprises a driving mechanism, an expanding arm and a memory steel belt, the driving mechanism is installed on the pipeline sliding trolley and drives the expanding arm to expand or contract, and the memory steel belt wraps the outer side of the expanding arm; after the expansion arms are unfolded, the deformed parts are expanded, and the memory steel belts on the outer sides of the expansion arms are unfolded in a ring shape to support the expanded parts. According to the utility model, the problem that the time for repairing underground cable pipelines is too long for a long time is solved, the construction time for laying the cable pipelines is effectively reduced, the working efficiency is improved, the safety risk is reduced, the progress of power failure construction is accelerated, the satisfaction degree of users is improved, good social benefits are provided, and the goal of intelligent transformation is realized.

Description

Technical Field

[0001] This utility model relates to a cable pipe expansion support device, belonging to the field of power pipeline laying and dredging technology. Background Technology

[0002] During the laying of cables in pre-buried conduits, the conduits are often flattened or deformed, preventing the cable from passing through. Sometimes, the gap is too narrow for the traction steel rope to pass through smoothly, but the cable is easily crushed or scratched during traction, causing insulation damage and affecting safe operation and service life. When cable conduits are flattened or deformed, the usual method is to excavate the ground and replace the damaged conduit. This excavation process damages the road surface, greenery, and traffic, which is not only labor-intensive but also affects the progress of construction and maintenance, causing inconvenience to people's lives and production. In severe cases, it can disrupt normal power supply and cause serious economic losses. Utility Model Content

[0003] The purpose of this utility model is to provide a cable conduit expansion support device that can quickly repair damaged cable conduits, solve the problem of blocked cable laying conduits, and avoid the problems of traffic obstruction and environmental damage caused by large-scale excavation of roads and green spaces for repairing damaged conduits, thus solving the aforementioned problems in the background technology.

[0004] The technical solution of this utility model is:

[0005] A cable conduit expansion and support device includes a conduit inserter, a conduit trolley, a camera, a conduit electro-hydraulic expander, a remote control receiver, a computer display screen, a remote control, and a memory steel strip. One end of the conduit inserter is mounted on a cable-laying rack on the ground, and the other end is connected to the conduit trolley inside the cable conduit. The front end of the conduit trolley is equipped with a camera, which is wirelessly connected to the computer display screen and the remote control via a remote control receiver with a built-in wireless terminal. The front end of the conduit trolley is equipped with a conduit electro-hydraulic expander, which includes a drive mechanism, an expansion arm, and a memory steel strip. The drive mechanism is mounted on the conduit trolley and drives the expansion arm to expand or contract. The outer side of the expansion arm is wrapped with a memory steel strip. When the expansion arm is expanded, it opens up the deformed part, and the memory steel strip on the outer side of the expansion arm unfolds into a ring shape to support the opened part.

[0006] Furthermore, the drive mechanism includes a motor, a hydraulic pump, a double-acting hydraulic cylinder, an outer cylinder, a fixed ring, and a sliding ring. The motor, hydraulic pump, and double-acting hydraulic cylinder are all mounted on the upper end face of the pipe sliding trolley. The front end of the double-acting hydraulic cylinder has an outer cylinder. The lever of the double-acting hydraulic cylinder moves within the outer cylinder. The outer cylinder has multiple axially arranged openings. The sliding ring is slidably disposed on the openings. The sliding ring includes an inner ring, a slider, and an outer ring. The lever end of the double-acting hydraulic cylinder is connected to the inner ring. The inner ring has a slider that matches the opening. The outer end of the slider extends out of the opening and connects to the outer ring. The lever of the double-acting hydraulic cylinder drives the sliding ring to move back and forth outside the outer cylinder. The front end of the outer cylinder has a fixed ring. The centers of the double-acting hydraulic cylinder, the fixed ring, and the sliding ring are on the same axis. The number of expansion arms is at least one pair, evenly arranged on the fixed... Between the ring and the sliding ring, there are a main arm, a forearm, a first bracket, and a second bracket. The front end of the main arm is hinged to the fixed ring, and the rear end of the main arm is hinged to the rear end of the forearm. The front end of the first bracket is hinged to the middle of the main arm, and the rear end of the first bracket is hinged to the outer ring. The two ends of the second bracket are hinged to the front of the main arm and the middle of the forearm. The memory steel strip is wrapped around the outside of the forearm. The motor-driven hydraulic pump supplies oil to the rod chamber of the double-acting hydraulic cylinder. The lever of the double-acting hydraulic cylinder extends forward, driving the sliding ring to move forward. The first bracket pushes the main arm and forearm to open. The forearm expands the deformed part of the cable pipe wall. The memory steel strip unfolds into a ring shape to support the expanded part of the cable pipe. The motor-driven hydraulic pump supplies oil to the rodless chamber of the double-acting hydraulic cylinder. The lever of the double-acting hydraulic cylinder retracts backward, driving the sliding ring to move backward. The first bracket pulls the main arm and forearm to retract and disengage from the memory steel strip.

[0007] Furthermore, the pipeline sliding trolley includes a body, wheels, connecting shafts, and wheel axles. Connecting shafts are provided at all four corners of the body. The outer ends of the connecting shafts are bent downwards and connected to the ends of the wheel axles. The wheel axles are arranged at an angle and are equipped with wheels. The wheels are in matching contact with the inner wall of the cable pipe.

[0008] Furthermore, the upper surface of the vehicle body is provided with two symmetrically arranged front support frames and rear support frames. The rear support frame is connected to the other end of the pipe threader through a connector. A camera is provided on the top of the front support frame. The motor and hydraulic pump are located between the front support frame and the rear support frame.

[0009] Furthermore, the center of the pipe threader is on the same axis as the centers of the double-acting hydraulic cylinder, the fixed ring, and the sliding ring.

[0010] Furthermore, the pipe threader (wire threader) is a special tool for traction and threading in this field, made of fiberglass, and used for traction and guidance in pipelines.

[0011] Furthermore, a memory steel strip of the appropriate size is selected according to the inner diameter of the cable conduit. After inputting the data, the memory steel strip is plastically shaped into a corresponding arc. Then, the memory steel strip is coiled and temporarily fixed on a pipe electric hydraulic expander. After the expansion arm of the pipe electric hydraulic expander expands, the deformed pipe is opened up, and at the same time, the memory steel strip opens and restores its set value memory shape, closely adhering to the cable conduit wall to play a supporting role. The memory steel strip is a technology known in the art, for example: non-oriented silicon steel coil, manufactured by Shougang, model 20SW1200, which is a cold-rolled non-oriented silicon steel coil.

[0012] The positive effects of this utility model are: it solves the long-standing problem of excessive time spent on emergency repairs of underground cable ducts, effectively reduces the construction time required for laying cable ducts, improves work efficiency, reduces safety risks, speeds up the progress of power outage construction, increases user satisfaction, provides good social benefits, and achieves the goal of intelligent transformation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the pipeline sliding trolley of this utility model reaching the deformation point of the cable pipe;

[0015] Figure 3 This is a top view of the memory steel strip of this utility model.

[0016] Figure 4 This is a schematic diagram of the retracted state of the pipeline electro-hydraulic expander of this utility model;

[0017] Figure 5 This is a schematic diagram of the pipe electric hydraulic expander of this utility model in the open state;

[0018] Figure 6 This is a schematic diagram of the structure of the pipeline sliding trolley of this utility model;

[0019] Figure 7 This is a schematic diagram of the outer cylinder structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the sliding ring structure of this utility model;

[0021] In the diagram: 1. Cable conduit; 2. Conduit puller; 3. Pipe sliding trolley; 4. Camera; 5. Pipe electric hydraulic expander; 6. Remote control receiver; 7. Computer display screen; 8. Remote control; 9. Memory steel strip; 10. Cable laying frame; 11. Conduit puller bracket.

[0022] Body 31, wheel 32, connecting axle 33, wheel axle 34, front support frame 35, rear support frame 36;

[0023] Drive mechanism 51, expansion arm 52;

[0024] Motor 511, hydraulic pump 512, double-acting hydraulic cylinder 513, outer cylinder 514, fixed ring 515, sliding ring 516, opening 517;

[0025] Inner ring 5161, slider 5162, outer ring 5163;

[0026] Upper arm 521, forearm 522, support frame 1 523, support frame 2 524. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] See attached document Figure 1-8 This embodiment provides a cable conduit expansion support device, including a conduit inserter 2, a conduit trolley 3, a camera 4, a conduit electro-hydraulic expander 5, a remote control receiver 6, a computer display screen 7, a remote control 8, and a memory steel strip 9. One end of the conduit inserter 2 is set on a cable laying rack 10 on the ground, and the other end of the conduit inserter 2 is connected to the conduit trolley 3 inside the cable conduit 1. The front end of the conduit trolley 3 is equipped with a camera 4, which is wirelessly connected to the computer display screen 7 and the remote control 8 on the ground through a remote control receiver 11 with a built-in wireless remote terminal. The front end of the conduit trolley 3 is equipped with a conduit electro-hydraulic expander 5, which includes a drive mechanism 51, an expansion arm 52, and a memory steel strip 9. The drive mechanism 51 is installed on the conduit trolley 3 and drives the expansion arm 52 to expand or contract. The memory steel strip 9 is wrapped around the outside of the expansion arm 52. After the expansion arm 52 is expanded, it opens up the deformed part, and the memory steel strip 9 on the outside of the expansion arm 52 unfolds into a ring shape to support the opened part.

[0029] See attached document Figure 4 and 5 The drive mechanism 51 includes a motor 511, a hydraulic pump 512, a double-acting hydraulic cylinder 513, an outer cylinder 514, a fixed ring 515, and a sliding ring 516. The motor 511, hydraulic pump 512, and double-acting hydraulic cylinder 513 are all mounted on the upper end face of the pipe sliding trolley 3. The outer cylinder 514 is located at the front end of the cylinder body of the double-acting hydraulic cylinder 513, and the lever of the double-acting hydraulic cylinder 513 moves within the outer cylinder 514. (Refer to attached diagram). Figure 7 The outer cylinder 514 has multiple axially arranged openings 517, and the sliding ring 516 is slidably disposed on the openings 517, as shown in the attached figure. Figure 8The sliding ring 516 includes an inner ring 5161, a slider 5162, and an outer ring 5163. The lever end of the double-acting hydraulic cylinder 513 is connected to the inner ring 5161. The inner ring 5161 is provided with a slider 5162 that matches the opening 517. The outer end of the slider 5162 extends out of the opening 517 and is connected to the outer ring 5163. The lever of the double-acting hydraulic cylinder 513 drives the sliding ring 516 to move back and forth outside the outer cylinder 514. The front end of the outer cylinder 514 is provided with a fixed ring 515. The centers of the double-acting hydraulic cylinder 513, the fixed ring 515, and the sliding ring 516 are on the same axis. The number of expansion arms 52 is at least one pair, evenly arranged between the fixed ring 515 and the sliding ring 516. It includes a large arm 521, a small arm 522, a first bracket 523, and a second bracket 524. The front end of the large arm 521 is hinged to the fixed ring 515, and the rear end of the large arm 521 is hinged to the rear end of the small arm 522. The front end of bracket 523 is hinged to the middle of the upper arm 521, and the rear end of bracket 523 is hinged to the outer ring 5163. Both ends of bracket 524 are hinged to the front of the upper arm 521 and the middle of the forearm 522. A memory steel strip 9 wraps around the outside of the forearm 522. The motor 511 drives the hydraulic pump 512 to supply oil to the rod chamber of the double-acting hydraulic cylinder 513. The lever of the double-acting hydraulic cylinder 513 extends forward, causing the sliding ring 516 to move forward. Push the boom 521 and forearm 522 to open. The forearm 522 opens the deformed part of the cable pipe 1. The memory steel strip 9 unfolds into a ring shape to support the opened part of the cable pipe 1. The motor 511 drives the hydraulic pump 512 to supply oil to the rodless chamber of the double-acting hydraulic cylinder 513. The lever of the double-acting hydraulic cylinder 513 retracts backward, driving the sliding ring 516 to move backward. The bracket 523 pulls the boom 521 and forearm 522 to retract and disengage from the memory steel strip 9.

[0030] See attached document Figure 6 The pipeline sliding trolley 3 includes a body 31, wheels 32, connecting shafts 33 and axles 34. Each of the four corners of the body 31 is provided with a connecting shaft 33. The outer end of the connecting shaft 33 is bent downward and connected to the end of the axle 33. The axle 34 is arranged at an angle and is provided with wheels 32. The wheels 32 are in matching contact with the inner wall of the cable pipe 1.

[0031] See attached document Figure 4 and 5 The upper surface of the vehicle body 31 is provided with two symmetrically arranged front support frames 32 and rear support frames 33. The rear support frame 33 is connected to the other end of the pipe inserter 2 through a connector. The top of the front support frame 32 is provided with a camera 4. The motor 511 and the hydraulic pump 512 are located between the front support frame 32 and the rear support frame 33.

[0032] See attached document Figure 4 and 5The center of the pipe inserter 2 is on the same axis as the center of the double-acting hydraulic cylinder 513, the fixed ring 515 and the sliding ring 516.

[0033] The method of using this utility model is as follows: The utility model is placed inside the cable conduit 1. The conduit puller 2 on the cable tray 10 is passed through the conduit puller bracket 11 and lowered into the cable conduit 1, connecting to the connector at the rear end of the pipe sliding trolley 3. The conduit puller 2 (cable puller) is a specialized tool for traction and cable pulling in this field, made of fiberglass, and used for traction and guidance in pipes. The operator uses the conduit puller 2 to drive the pipe sliding trolley 3 through the cable conduit 1. Ground personnel use the camera 4 equipped on the pipe sliding trolley 3 to locate the damaged area of ​​the cable conduit 1, and then contact underground personnel to send the pipe electric hydraulic expander 5 to the damaged area of ​​the cable conduit 1. Underground personnel use a double-acting hydraulic cylinder 513 to drive the expansion arm 52 to repair and expand the deformed pipe. Simultaneously, the memory steel strip 9 opens to support the already expanded pipe, preventing further deformation. Subsequently, the double-acting hydraulic cylinder 513 drives the expansion arm 52 to retract, separating the expansion arm 52 from the memory steel strip 9, thus achieving the purpose of unblocking the cable conduit.

[0034] In this embodiment, preferably, the wheel 32 is equipped with a telescopic device, which allows the pipe sliding trolley 3 to slide close to the pipe wall without getting stuck due to pipe deformation. For example, the telescopic device is a telescopic spring with a stroke of 7cm. The wheel 32 is set on the outer ring of the bearing, and the inner ring of the bearing is fitted onto the axle 34. Multiple sets of telescopic springs are provided between the inner ring of the bearing and the axle 34. The elastic force of the telescopic springs allows the pipe sliding trolley 3 to slide close to the pipe wall, allowing the pipe sliding trolley 3 to be suspended inside the pipe, which facilitates the pipe electric hydraulic expander 5 to play a greater role and allows it to slide smoothly even when encountering pipe joints or slight deformation. The wheel 32 is made of nylon and is arranged at an angle perpendicular to the contact pipe wall.

[0035] Based on the inner diameter of the cable conduit, a high-toughness, memory steel strip is selected. After inputting the data, the memory steel strip is plastically shaped into a corresponding arc. It is then temporarily fixed on a pipe electro-hydraulic expander. As the expander arm expands, it opens up the deformed pipe, and simultaneously, the memory steel strip opens and restores its pre-set, memory shape, adhering tightly to the cable conduit wall to function as a support. The memory steel strip is a known technology in the field; for example, a non-oriented silicon steel coil manufactured by Shougang Group, model 20SW1200, which is a cold-rolled non-oriented silicon steel coil.

[0036] The remote control receiver 6 has a built-in wireless remote terminal, which can receive wireless signals inside the pipeline and maintain smooth communication with the computer display screen 7 and the remote control 8 on the ground to achieve remote control.

[0037] The camera 4 is an infrared night vision camera. The camera 4 can transmit images in all directions at 360°, and the resolution of the captured images is ≥1080P.

[0038] The drive mechanism 51 of the pipeline electric hydraulic expander 5 is powered by hydraulic pressure. The expansion diameter of the expansion arm 52 is ≥18cm. The drive mechanism 51 includes a motor 511, a hydraulic pump 512, and a double-acting hydraulic cylinder 513. In this embodiment, the motor 511 is a brushless DC motor with a built-in rechargeable lithium battery, which can provide power for up to 10 hours. The output voltage is 24±0.3V and the maximum torque is ≥15Nm.

[0039] The hydraulic pump 512 is an oil pressure pump. An outer ring 5163 is provided on the inner ring 5161 and can slide freely on the outer wall of the outer cylinder 514. The outer ring 5163 is provided with a rotating shaft and connected to the first bracket 523. The first bracket 523 is connected to the upper arm 521, and the second bracket 524 is connected to the lower arm 522.

[0040] In this embodiment, there are 6 pairs of expansion arms 52, totaling 12 arms, evenly arranged between the fixed ring 515 and the sliding ring 516, like the frame of an umbrella. At this time, the pipe trolley 3 is located in the middle of the pipe, facilitating the opening of the expansion arms 52. The expansion arms 52 are made of hard round steel, with the large arm 521 and the small arm 522 having a diameter of 3mm and a length of 30cm. The first bracket 523 and the second bracket 524 have a diameter of 3mm and a length of 15cm, utilizing the lever principle and powered by a hydraulic pump 512.

[0041] The front ends of the large arms 521 of the six pairs of expansion arms 52 are hinged circumferentially to the outer ring of the fixing ring 515, and the rear ends of the brackets 523 of the six pairs of expansion arms 52 are hinged circumferentially to the outer ring of the outer ring 5163. After the six pairs of expansion arms 52 are opened, they can effectively repair the deformed pipe, while the memory steel strip 9 unfolds into a ring shape to support the opened pipe of the cable pipe 1 and prevent the pipe from deforming again.

Claims

1. A cable conduit expansion support device, characterized in that: The device includes a pipe threader (2), a pipe sliding trolley (3), a camera (4), a pipe electric hydraulic expander (5), a remote control receiver (6), a computer display screen (7), a remote control (8), and a memory steel strip (9). One end of the pipe threader (2) is set on a cable laying rack (10) on the ground, and the other end of the pipe threader (2) is connected to the pipe sliding trolley (3) inside the cable pipe (1). The front end of the pipe sliding trolley (3) is equipped with a camera (4). The camera (4) is connected to the computer display screen (7) on the ground and the remote control via the remote control receiver (6) with a built-in wireless remote terminal. (8) Wireless connection; The front end of the pipe sliding trolley (3) is provided with a pipe electric hydraulic expander (5). The pipe electric hydraulic expander (5) includes a drive mechanism (51), an expansion arm (52) and a memory steel belt (9). The drive mechanism (51) is installed on the pipe sliding trolley (3). The drive mechanism (51) drives the expansion arm (52) to expand or contract. The outer side of the expansion arm (52) is wrapped with a memory steel belt (9). After the expansion arm (52) is expanded, it will open up the deformed part. The memory steel belt (9) on the outer side of the expansion arm (52) unfolds into a ring shape to support the opened part.

2. The cable conduit expansion support device according to claim 1, characterized in that: The drive mechanism (51) includes a motor (511), a hydraulic pump (512), a double-acting hydraulic cylinder (513), an outer cylinder (514), a fixed ring (515), and a sliding ring (516). The motor (511), hydraulic pump (512), and double-acting hydraulic cylinder (513) are all mounted on the upper end face of the pipeline sliding trolley (3). The front end of the cylinder body of the double-acting hydraulic cylinder (513) is provided with an outer cylinder (514). The lever of the double-acting hydraulic cylinder (513) moves inside the outer cylinder (514). The outer cylinder (514) is provided with multiple axially arranged openings (517). The sliding ring (516) is slidably arranged on the openings (517). The sliding ring (516) includes an inner ring (516). 1) A slider (5162) and an outer ring (5163) are connected. The lever end of the double-acting hydraulic cylinder (513) is connected to the inner ring (5161). The inner ring (5161) is provided with a slider (5162) that matches the opening (517). The outer end of the slider (5162) extends out of the opening (517) and is connected to the outer ring (5163). The lever of the double-acting hydraulic cylinder (513) drives the sliding ring (516) to move back and forth on the outside of the outer cylinder (514). The front end of the outer cylinder (514) is provided with a fixed ring (515). The centers of the double-acting hydraulic cylinder (513), the fixed ring (515) and the sliding ring (516) are on the same axis. The number of the expansion arms (52) is at least one pair, and they are evenly distributed. Located between a fixed ring (515) and a sliding ring (516), the structure includes a main arm (521), a forearm (522), a first bracket (523), and a second bracket (524). The front end of the main arm (521) is hinged to the fixed ring (515), and the rear end of the main arm (521) is hinged to the rear end of the forearm (522). The front end of the first bracket (523) is hinged to the middle of the main arm (521), and the rear end of the first bracket (523) is hinged to the outer ring (5163). Both ends of the second bracket (524) are hinged to the front of the main arm (521) and the middle of the forearm (522). A memory steel strip (9) is wrapped around the outside of the forearm (522). The motor (511) drives a hydraulic pump (512), which is a double-acting hydraulic cylinder. Oil is supplied to the rod chamber of (513), the lever of the double-acting hydraulic cylinder (513) extends forward, driving the sliding ring (516) to move forward, the bracket (523) pushes the upper arm (521) and the lower arm (522) to open, the lower arm (522) opens the deformed part of the cable pipe (1), the memory steel strip (9) unfolds into a ring shape to support the opened part of the cable pipe (1), the motor (511) drives the hydraulic pump (512) to supply oil to the rodless chamber of the double-acting hydraulic cylinder (513), the lever of the double-acting hydraulic cylinder (513) retracts backward, driving the sliding ring (516) to move backward, the bracket (523) pulls the upper arm (521) and the lower arm (522) to retract and disengage from the memory steel strip (9).

3. The cable conduit expansion support device according to claim 2, characterized in that: The trolley (3) of the pipeline includes a body (31), wheels (32), connecting shafts (33) and axles (34). Connecting shafts (33) are provided at the four corners of the body (31). The outer end of the connecting shaft (33) is bent downward and connected to the end of the axle (34). The axle (34) is arranged at an angle and is provided with wheels (32). The wheels (32) are in contact with the inner wall of the cable pipe (1).

4. The cable conduit expansion support device according to claim 3, characterized in that: The upper surface of the vehicle body (31) is provided with two symmetrically arranged front support frames (35) and rear support frames (36). The rear support frame (36) is connected to the other end of the pipe inserter (2) through a connector. The top of the front support frame (35) is provided with a camera (4). The motor (511) and the hydraulic pump (512) are located between the front support frame (35) and the rear support frame (36).

5. A cable conduit expansion support device according to claim 4, characterized in that: The center of the pipe threader (2) is on the same axis as the center of the double-acting hydraulic cylinder (513), the fixed ring (515) and the sliding ring (516).

Images