Installation auxiliary device and installation method based on gas pipeline detection cable installation

Abstract

The invention relates to the technical field of cable installation, and particularly discloses an installation auxiliary device and an installation method.The installation auxiliary device comprises a conveyor with a self-adaptive clamping assembly, the conveyor is provided with a double-eccentric steering assembly, and the double-eccentric steering assembly comprises two bogies with crossed motion trails; each bogie is connected with a telescopic driving unit through a gear rack transmission mechanism, and the open end of each bogie is provided with a sunken steering wheel to form an anti-collision reversing mechanism of the cable. Through the self-adaptive clamping force control system, the pressure of the driving wheel is monitored in real time in the cable conveying process, the clamping gap is automatically adjusted in combination with the air pressure adjusting mechanism, it is guaranteed that conveying power is stable, the cable is prevented from being excessively extruded and damaged, self-adaptive adjustment can be achieved through the spring and pneumatic composite adjusting structure according to different cable diameters, and the working efficiency is improved. The protection layer deformation caused by overlarge pressure is effectively prevented, and the cable installation quality and the service life are significantly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable installation, and in particular to an installation auxiliary device and an installation method for gas pipeline detection cable installation. Background Art

[0002] The main function of the gas pipeline detection cable is to help locate and track the position of underground gas pipelines, especially when polyethylene (PE) pipes are used. Since PE pipes themselves are non-conductive and non-magnetic, it is difficult to detect directly by conventional methods. Therefore, it is necessary to use detection cables (usually called tracer wires) to achieve positioning; gas pipeline detection cables usually need to be installed with the help of auxiliary devices. Gas pipeline detection cable installation auxiliary devices are mainly used to ensure the accurate positioning and installation of cables during gas pipeline detection, so as to improve the accuracy and efficiency of detection; The prior art patent publication number CN118554341B discloses a patent named: Cable Installation Auxiliary Device. This technology uses the friction between the conveyor belt and the cable to realize both the transmission of the cable and the crawling of the conveyor belt on the cable, so that the frame can automatically move to a new working position, which saves time and effort, avoids the introduction of new traction equipment, and saves costs; In the process of conveying cables in the above-mentioned prior art, since the positions of the frame, crawler and V-shaped wheel are fixed, when the cable is conveyed, when the cable turns, the frame and the V-shaped wheel cannot switch the angle, which causes the cable to bend and wear when turning, and is easily pulled and damaged when the cable turns. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] The present invention provides an installation auxiliary device and an installation method for gas pipeline detection cable installation, which can solve the problem of easy wear of the cable in the prior art. The specific scheme is as follows: On the one hand, the present invention provides an installation auxiliary device for gas pipeline detection cable installation, comprising a conveyor with an adaptive clamping assembly, the conveyor is provided with a double eccentric steering assembly, the double eccentric steering assembly comprises two bogies with intersecting motion trajectories, each bogie is connected to a retractable drive unit through a gear rack transmission mechanism, and a recessed steering wheel is provided at its open end to form an anti-collision reversing mechanism for the cable; The gear rack transmission mechanism includes an arc-shaped rack at the bottom of the bogie meshing with a gear set in the sliding groove, and the eccentric displacement of the bogie is controlled by a retractable drive unit, so that the two steering wheels form a guide extrusion for the cable, and the bending allowance compensation of the cable is realized by controlling the rotation speed of the conveying unit on the conveyor; In the above scheme, an adaptive clamping force control system is used to monitor the driving wheel pressure in real time during cable transportation, and the clamping gap is automatically adjusted in combination with the air pressure regulating mechanism, which not only ensures stable transmission power but also avoids excessive squeezing and damage to the cable. The spring and pneumatic composite adjustment structure can be adaptively adjusted according to different cable diameters, effectively preventing deformation of the protective layer caused by excessive pressure, and significantly improving the cable installation quality and service life.

[0005] Preferably, the clamping assembly includes a driving wheel, a rotating shaft, an adjusting block and a limiting hole opened on the conveyor. The adjusting block is slidably matched with the limiting hole through a limiting rod. The limiting hole is connected to an air pipe, an electromagnetic pressure relief valve and an air pump. The lifting and lowering displacement of the adjusting block is controlled by changes in air pressure.

[0006] Preferably, a V-shaped guide groove is provided in the middle of the wheel surface of the steering wheel, the rotation axis of the steering wheel forms a variable angle with the cable conveying direction, and the extended lines of the rotation trajectories of the two steering wheels intersect outside the cable bending area.

[0007] Preferably, the clamping surface of the driving wheel is provided with an arc-shaped depression matching the cable protection shell, and the lower driving wheel is linked to the adjusting blocks on both sides by the first telescopic rod to achieve synchronous lifting.

[0008] Preferably, a limiting wheel is provided at the cable outlet end of the conveyor, the wheel surface of the limiting wheel is concave to match the cable width, and the axis of the limiting wheel is inclined at an angle of 10° to 45° to the axis of the driving wheel.

[0009] Preferably, a pressure sensor is provided on the regulating block, and the pressure sensor is connected to the rotating shaft of the upper driving wheel, and is used to monitor the clamping force of the two driving wheels and feed back the data to the electromagnetic pressure relief valve and the air pump.

[0010] Preferably, the cable end is provided with a detachable magnetic cover, a magnetic cover, a threader and a visual sensor, and the threader is provided with a clamping structure fixed to the wire; In the above scheme, a split adjustment block structure is adopted, and the position adjustment of the driving wheel is realized through the cooperation of the limit rod and the pneumatic control component. The clamping force change of the driving wheel can be accurately sensed through the pressure sensor and the sleeve design. Combined with the rapid response characteristics of the electromagnetic pressure relief valve, an active anti-collision protection system is constructed. When encountering foreign objects in the pipeline or installation deviations, the clamping state can be released in time to ensure safe and reliable operation of the equipment.

[0011] Preferably, it also includes an industrial computer, which receives signals from the pressure sensor and the visual sensor, and coordinates to control the speed of the driving wheel, the speed of the steering wheel and the extension amount of the second telescopic rod, so as to dynamically adjust the bending radius and the conveying speed of the cable; In the above scheme, a steering assembly is set up, and the steering assembly adopts a double-eccentric bogie collaborative control scheme, and precise angle adjustment is achieved through gear and rack transmission. During the cable steering process, the industrial control system synchronously coordinates the drive motor speed and the steering mechanism action to form a dynamic compensation mechanism, which effectively eliminates the stress concentration phenomenon caused by steering, ensures that the cable maintains a natural bending shape during long-distance transportation, and avoids internal wire core damage caused by excessive bending.

[0012] Preferably, the output ends of the pressure sensor and the visual sensor are connected to the input end signals of the industrial computer through wires, and the first motor, the second motor, the first telescopic rod and the second telescopic rod are connected to the industrial computer through wires to realize bidirectional signal connection; In the above scheme, a visual sensor is installed and a threading device is set at the end of the cable. Real-time image transmission is used to assist the operator in accurately locating the installation position. The magnetic cover design not only ensures the sealing of the end during transportation, but also facilitates quick disassembly and fixation. Combined with the protective shell recovery function, a complete construction closed loop is formed, which greatly improves the operating efficiency and installation accuracy of concealed construction in underground pipelines.

[0013] In another aspect, the present invention provides a method for installing a gas pipeline detection cable, comprising the following steps: S1, conveying the cable through the adaptive clamping assembly of the conveyor and activating the retractable drive unit in the double eccentric steering assembly; S2, using the retractable drive unit to drive the bogie to move along the sliding groove, so that the arc-shaped rack at the bottom of the bogie is engaged with the gear set, thereby controlling the movement trajectories of the two bogies to cross; S3, by adjusting the telescopic amount of the telescopic drive unit, changing the eccentric displacement of the bogie, so that the two steering wheels form a guided extrusion on the cable; S4. According to the bending shape of the cable, dynamically adjust the speed of the conveying unit of the conveyor to compensate for the bending allowance of the cable; S5. The cable is reversed to prevent collision through the recessed steering wheel to complete the continuous installation of the cable in the pipeline.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. The present invention uses an adaptive clamping force control system to monitor the driving wheel pressure in real time during cable transportation, and automatically adjusts the clamping gap in combination with the air pressure regulating mechanism, which not only ensures stable transportation power but also avoids excessive squeezing and damage to the cable. The spring and pneumatic composite adjustment structure can be adaptively adjusted according to different cable diameters, effectively preventing deformation of the protective layer caused by excessive pressure, and significantly improving the cable installation quality and service life.

[0015] 2. The present invention sets a steering assembly, and the steering assembly adopts a double-eccentric bogie collaborative control scheme, and realizes precise angle adjustment through gear and rack transmission. During the cable steering process, the industrial control system synchronously coordinates the drive motor speed and the steering mechanism action to form a dynamic compensation mechanism, which effectively eliminates the stress concentration phenomenon caused by steering, ensures that the cable maintains a natural bending shape during long-distance transportation, and avoids internal wire core damage caused by excessive bending.

[0016] 3. The present invention sets a visual sensor and a threading device at the end of the cable, and assists the operator to accurately locate the installation position through real-time image transmission. The magnetic cover design not only ensures the sealing of the end during transportation, but also facilitates quick disassembly and fixation. Combined with the protective shell recovery function, a complete construction closed loop is formed, which greatly improves the operating efficiency and installation accuracy of concealed construction in underground pipelines.

[0017] 4. The modular drive mechanism of the present invention adopts a split adjustment block structure, and the position adjustment of the driving wheel is achieved through the cooperation of the limit rod and the pneumatic control component. The clamping force change of the driving wheel can be accurately sensed through the pressure sensor and the sleeve design. Combined with the rapid response characteristics of the electromagnetic pressure relief valve, an active anti-collision protection system is constructed. When encountering foreign objects in the pipeline or installation deviations, the clamping state can be released in time to ensure safe and reliable operation of the equipment.

[0018] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is an overall stereogram of the present invention; Figure 2 It is another perspective stereogram of the present invention as a whole; Figure 3 It is a structural schematic diagram of the cable of the present invention; Figure 4 is a three-dimensional diagram of the driving wheel of the present invention; Figure 5 An exploded view of the driving wheel and the adjusting block of the present invention; Figure 6 A three-dimensional diagram of the adjustment block and the support column of the present invention; Figure 7 A three-dimensional diagram of the driving wheel and the adjusting plate of the present invention; Figure 8 is a three-dimensional diagram of the steering wheel of the present invention; Fig. 9 It is a structural schematic diagram of the steering wheel and the first gear of the present invention; Fig.10 It is a schematic diagram of the installation of the bogie of the present invention; Fig.11 This is a schematic diagram of the bending state of the cable of the present invention; Fig.12 This is a system block diagram of the present invention.

[0020] The reference numerals are as follows: 100, conveyor; 101, base; 102, groove; 103, driving wheel; 104, limiting wheel; 200, cable; 201, wire; 202, magnetic cover; 203, threader; 204, visual sensor; 301, first motor; 302, rotating shaft; 303, adjusting block; 304, spring; 305, notch; 306, pressure sensor; 307, limiting rod; 308, adjusting plate; 309, 09, first telescopic rod; 310, support column; 311, adjustment slot; 312, limit hole; 313, electromagnetic pressure relief valve; 314, air pipe; 315, bushing; 401, bogie; 402, steering wheel; 403, second motor; 404, arc rack; 405, first gear; 406, second gear; 407, drive rack; 408, second telescopic rod; 410, sliding slot; 411, rotating slot. DETAILED DESCRIPTION

[0021] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0022] Embodiment 1: Figure 1 , Figure 2As shown, the present embodiment provides an installation auxiliary device for gas pipeline detection cable installation, including a conveyor 100, the conveyor 100 includes a base 101 for conveying a cable 200, the cable 200 consists of a protective shell and an electric wire 201, the electric wire is wrapped inside the protective shell (due to the long length of the gas pipeline, when conveying the electric wire 201, it is necessary to first wrap the electric wire 201 with the protective shell, so that the shell can be driven by the conveyor 100, thereby achieving the conveying effect of the electric wire 201), a groove 102 is arranged on the top of the base 101, and the shape of the groove 102 matches the width of the cable 200; a driving wheel 103 is arranged at one end of the base 101, and the driving wheel 103 has two, the lower The driving wheel 103 is the active wheel, and the upper driving wheel 103 is the driven wheel. The two driving wheels 103 can be clamped with the cable 200. The lower driving wheel 103 provides driving power and provides transmission power for the cable 200, so that the cable 200 moves to the other end of the driving wheel 103, thereby achieving the purpose of transmitting the cable 200 and allowing the cable 200 to extend into the gas pipeline; a limiting wheel 104 is arranged at the other end of the base 101, and the limiting wheel 104 has at least one, and the cable 200 is limited to move inside the groove 102 by the limiting wheel 104; it should be noted that the limiting wheel 104 and the two driving wheels 103 are all concave, which can limit the cable 200 in the middle of the limiting wheel 104 and the driving wheel 103.

[0023] like Figure 3 As shown, a magnetic cover 202 is provided at the end of the protective shell, a threader 203 is fixed at the end of the protective shell, the end of the wire 201 is fixed on the threader 203, and a visual sensor 204 is connected to one end of the threader 203. The visual sensor 204 can collect the image inside the gas pipeline and then send it to the operator's control device; in the above scheme, after the protective shell and the wire 201 are transported to the other end of the gas pipeline, the magnetic cover 202 is removed, and then the wire 201 is fixed on the gas pipeline, and then the conveyor 100 retracts the protective shell, thereby completing the transportation and installation of the wire 201.

[0024] like Figure 4 , Figure 5 , Figure 6As shown, a clamping assembly is provided on the base 101, and the clamping assembly includes a first motor 301, and the first motor 301 is installed at one end of the driving wheel 103 below, and is used to drive the driving wheel 103 to rotate. A rotating shaft 302 is fixedly connected to both ends of the driving wheel 103, and an adjusting block 303 is sleeved on the outer side of the rotating shaft 302. The adjusting block 303 is slidably installed on a supporting column 310 at the top of the base 101, and an adjusting slot 311 is provided on the supporting column 310. The adjusting block 303 is slidably connected to the inside of the adjusting slot 311, and the cross section of the adjusting block 303 matches the cross section shape of the adjusting slot 311. A spring 304 is connected between the bottom of the adjusting block 303 and the bottom of the inner wall of the adjusting slot 311. The spring 304 is in an extended state by default, which can squeeze the adjusting block 303 away from the end of the spring 304, and the default state of the upper and lower driving wheels 103 can be away from each other under the action of the spring 304, and no clamping force is generated on the cable 200; like Figure 5 As shown, a notch 305 is provided in the middle of the upper adjustment block 303, a sleeve 315 is installed inside the notch 305, and the shapes of the vertical plane sections of the sleeve 315 and the notch 305 match each other, and both have a limiting structure, which can prevent the sleeve 315 from rotating in the notch 305, and there is a gap between the sleeve 315 and the notch 305, and a pressure sensor 306 is connected between the top of the sleeve 315 and the inner top of the notch 305. It should be noted that the rotating shaft on one side of the driving wheel 103 below and the adjustment block 303 are directly connected in rotation, and there is no pressure sensor 306; like Figure 4 , Figure 6 As shown, a limiting rod 307 is fixedly connected to the middle of the adjustment block 303, and limiting holes 312 are provided at the upper and lower ends of the adjustment slot 311. The limiting rod 307 is sealingly and slidably connected to the limiting hole 312, wherein one end of the limiting hole 312 is connected to an air pipe 314, the middle of the air pipe 314 is connected to an electromagnetic pressure relief valve 313, and the other end of the air pipe 314 is connected to an air pump; In the above scheme, the clamping force applied by the driving wheel 103 to the cable 200 can be monitored through the value of the pressure sensor 306. When the monitored value is greater than the threshold, the electromagnetic pressure relief valve 313 can be controlled by the industrial computer to achieve the purpose of pressure relief, so that the adjustment block 303 automatically moves up under the action of the spring 304. When the value of the pressure sensor 306 reaches below the threshold, the electromagnetic pressure relief valve 313 is controlled again to adjust the air pressure inside the limit hole 312 in real time, so that the position of the adjustment block 303 can be adjusted. like Figure 7As shown, the bottom of the lower adjustment block 303 is connected to an adjustment plate 308, and the adjustment plate 308 fixes the adjustment blocks 303 at both ends together, so that the adjustment blocks 303 at both ends of the lower driving wheel 103 can be raised and lowered synchronously, and a first telescopic rod 309 is connected between the bottom of the adjustment plate 308 and the base 101, and the first telescopic rod 309 can be electric, pneumatic or hydraulic.

[0025] like Figure 8 , Fig. 9 , Fig.10 As shown, a steering assembly is also provided at the other end of the conveyor 100, and the steering assembly includes a bogie 401, which is provided at one end of the base 101. There are two bogies 401, and the two bogies 401 provide steering forces in two directions of the cable 200 respectively, wherein the circles formed by the motion trajectories generated when the two bogies 401 rotate are not concentric; like Fig.11 As shown, the above scheme is specifically manifested as follows: the center of a circle formed by the motion trajectory generated when one bogie 401 rotates is biased toward the other bogie 401; The bogie 401 is in a U-shape, and a steering wheel 402 is provided at the open end of the bogie 401. The upper and lower ends of the steering wheel 402 are rotatably connected to the upper and lower ends of the bogie 401, and a second motor 403 is connected to the top of the bogie 401. The output shaft of the second motor 403 is connected to the top of the steering wheel 402, so as to drive the steering wheel 402. Both steering wheels 402 are provided with depressions that are close to their own central axis. The depressions can keep the cable 200 in the middle of the steering wheel 402 and are not easy to be separated; an arc-shaped rack 404 is fixedly connected to the bottom of the bogie 401, and a sliding groove 410 is provided at the corresponding position of the base 101. The arc-shaped rack 404 and the sliding groove 410 are connected to each other. The inside of the groove 410 is slidably connected, a first gear 405 is provided on one side of the arc-shaped rack 404, the first gear 405 is meshed with the arc-shaped rack 404, a second gear 406 is fixedly connected to the top of the first gear 405, a rotating groove 411 is opened at the corresponding position of the base 101, the first gear 405 and the second gear 406 are rotatably installed at one end of the base 101 through the rotating groove 411, and the second gear 406 is located above the base 101, a driving rack 407 is provided on one side of the second gear 406, the driving rack 407 is meshed with the second gear, one end of the driving rack 407 is connected to the second telescopic rod 408, and one end of the second telescopic rod 408 is fixed to the outer wall of the base 101; like Fig.11As shown, in the above scheme, when the cable 200 needs to be turned to one side, the steering frame 401 on the other side is rotated so that the steering wheel 402 on the other side squeezes the cable 200 to one side, thereby achieving the turning. In order to avoid excessive wear on the cable 200 during the squeezing process, during the movement, the speed of the second motor 403 on the bogie 401 is increased by a certain amount through the coordinated control of the industrial computer, and the speed of the first motor 301 is also appropriately increased, so that the bending portion of the cable 200 has a bending margin, thereby avoiding pulling on the cable 200 when bending.

[0026] Embodiment 2: Fig.12 As shown, the technical solution of this embodiment is different from that of the first embodiment in that this embodiment provides a control system of the technical solution of the first embodiment, which is: The industrial computer is installed at any position of the conveyor 100, and the output ends of the pressure sensor 306 and the visual sensor 204 are connected to the input end signals of the industrial computer through wires. The first motor 301, the second motor 403, the first telescopic rod 309 and the second telescopic rod 408 are connected to the industrial computer through wires to realize bidirectional signal connection, that is, the driving information of the first motor 301, the second motor 403, the first telescopic rod 309 and the second telescopic rod 408 can be sent to the industrial computer, and then the industrial computer controls the first motor 301, the second motor 403, the first telescopic rod 309 and the second telescopic rod 408 according to these signals.

[0027] Embodiment 3: The technical solution of this embodiment is different from that of Embodiment 1 in that this embodiment provides a method for installing a gas pipeline detection cable, comprising the following steps: S1. Place the conveyor 100 at the gas pipeline opening where the cable 200 needs to be installed; S2, placing the cable 200 in the groove 102 on the conveyor 100, keeping the cable 200 in the groove 102, and then placing the extending end of the cable 200 in the gas pipeline; S3, the first motor 301 drives the driving wheel 103 to rotate, and the air pump is started, driving the adjustment block 303 to move, so that the two driving wheels 103 maintain an appropriate distance, clamping the cable 200, thereby driving the cable 200 to move into the gas pipeline; S4, the visual sensor 204 detects the side wall of the gas pipeline. When the end of the cable 200 encounters the side wall close to the gas pipeline, the second telescopic rod 408 can be controlled to adjust the angles of the bogie 401 and the steering wheel 402, so that the cable 200 can be turned, thereby avoiding the end of the cable 200 from colliding with the side wall of the gas pipeline, causing damage to the cable 200; S5. After one end of the cable 200 is transported to the other end of the gas pipeline, the magnetic cover 202 is removed, and then the wire 201 is fixed on the gas pipeline. Then the conveyor 100 retracts the protective shell, thereby completing the transportation and installation of the wire 201.

[0028] It should be noted that the working process of the visual sensor 204 includes: Capture 2D images or 3D point cloud data of the surrounding environment through the lens. For example, the binocular vision system simulates the parallax of the human eye through two parallel cameras to obtain the depth information of the scene. Object detection and feature extraction: Use algorithms to process image data and extract key features such as the location, shape, and speed of obstacles; Deep learning technology: Convolutional neural network (CNN) or YOLO series algorithms are used for target recognition. For example, a deep learning-based vision system can classify obstacles as static (such as walls and pipe walls).

[0029] 3D information generation: Binocular vision generates a depth map through parallax calculation, and combines it with RGB images to achieve semantic segmentation and distinguish obstacle types. For example, the front and rear binocular vision systems of DJI drones can build a 3D model of the environment in real time for path planning.

[0030] Embodiment 4: The technical solution of this embodiment is different from that of Embodiment 3 in that the visual sensor 204 can be replaced by a laser sensor. The principle of realizing object detection and anti-collision mechanism by laser sensor is mainly based on laser ranging technology, and real-time monitoring and control are realized by combining signal processing and threshold judgment; It should be noted that the principle of the above scheme is: the laser sensor consists of a laser transmitter (such as a semiconductor laser), a receiver (such as a CMOS photosensitive element), an optical system and a signal processing circuit. The transmitter emits a highly directional laser beam. When the laser encounters an object, part of the light is reflected back to the receiver. The existence and position of the object are determined by analyzing the changes in the reflected light signal. After the receiver converts the light signal into an electrical signal, the detection circuit amplifies, filters and performs analog-to-digital conversion, and determines whether to trigger an alarm in combination with a preset safety threshold. For example, when the detection distance is less than the safety threshold, the system determines that there is a risk of collision.

[0031] In summary, the present invention uses an adaptive clamping force control system to monitor the pressure of the driving wheel 103 in real time during the transportation of the cable 200, and automatically adjusts the clamping gap in combination with the air pressure regulating mechanism air pipe 314 and the electromagnetic pressure relief valve 313, which not only ensures the stability of the transportation power but also avoids excessive squeezing and damaging the cable 200. The spring 304, the adjustment block 303, and the limit rod 307 can be adaptively adjusted according to the diameter of different cables 200, effectively preventing the deformation of the protective layer caused by excessive pressure, and significantly improving the installation quality and service life of the cable; by setting a steering component, and the steering component adopts a double eccentric bogie 401 collaborative control solution, precise angle adjustment is achieved through the first gear 405, the second gear 406, the arc rack 404, and the drive rack 407 transmission. During the steering process of the cable 200, the industrial control system synchronously coordinates the speed of the second motor 403 and the action of the steering mechanism to form a dynamic compensation mechanism, which effectively eliminates the stress concentration phenomenon generated during steering and ensures that the cable is stable during long-distance transportation. 200 maintains a natural bending shape to avoid damage to the internal wires 201 caused by excessive bending; by setting a visual sensor 204, a threader 203 is set at the end of the cable 200, and real-time image transmission is used to assist the operator to accurately locate the installation position. The magnetic cover 202 design not only ensures the sealing of the end during transportation, but also facilitates quick disassembly and fixation. The recovery function of the protective shell forms a complete construction closed loop, which greatly improves the operating efficiency and installation accuracy of concealed construction in underground pipelines; by setting a modular drive mechanism and adopting a split adjustment block 303 structure, the position adjustment of the drive wheel 103 is achieved through the cooperation of the limit rod 307, the air pipe 314, and the electromagnetic pressure relief valve 313. The clamping force change of the drive wheel 103 can be accurately sensed by the design of the pressure sensor 306 and the shaft sleeve 315. Combined with the rapid response characteristics of the electromagnetic pressure relief valve 313, an active anti-collision protection system is constructed, which can release the clamping state in time when encountering foreign matter in the pipeline or installation deviation, ensuring safe and reliable operation of the equipment.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] Parallel: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, which allows for non-absolute parallelism due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angular errors are allowed. For example, an assembly error range of less than 10 degrees can be understood as a parallel relationship.

[0035] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0036] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An installation auxiliary device for installing a gas pipeline detection cable, comprising a conveyor (100) with an adaptive clamping assembly, characterized in that: The conveyor (100) is provided with a double eccentric steering assembly, which comprises two bogies (401) with intersecting motion trajectories, each bogie (401) being connected to a retractable drive unit via a rack and pinion transmission mechanism, and having an open end provided with a recessed steering wheel (402) to form an anti-collision reversing mechanism for the cable (200); The rack and pinion transmission mechanism comprises an arc-shaped rack (404) at the bottom of the bogie (401) meshing with a gear set in a sliding groove (410), and the eccentric displacement of the bogie (401) is controlled by a retractable drive unit so that two steering wheels (402) form a guide extrusion on the cable (200), and the bending allowance compensation of the cable (200) is achieved by controlling the rotation speed of the conveying unit on the conveyor (100).

2. The installation auxiliary device for gas pipeline detection cable installation according to claim 1, characterized in that: The clamping assembly comprises a driving wheel (103), a rotating shaft (302), an adjusting block (303) and a limiting hole (312) arranged on the conveyor (100); the adjusting block (303) is slidably matched with the limiting hole (312) via a limiting rod (307); an air pipe (314), an electromagnetic pressure relief valve (313) and an air pump are connected to the limiting hole (312); and the lifting and lowering displacement of the adjusting block (303) is controlled by changes in air pressure.

3. The installation auxiliary device for gas pipeline detection cable installation according to claim 1, characterized in that: A V-shaped guide groove is provided in the middle of the wheel surface of the steering wheel (402); the rotation axis of the steering wheel (402) forms a variable angle with the cable conveying direction, and the extended lines of the rotation tracks of the two steering wheels (402) intersect outside the cable bending area.

4. The auxiliary installation device for gas pipeline detection cable installation according to claim 3, characterized in that: The clamping surface of the driving wheel (103) is provided with an arc-shaped depression matching the cable protection shell, and the lower driving wheel (103) is linked to the adjustment blocks (303) on both sides through the first telescopic rod (309) to achieve synchronous lifting.

5. The auxiliary installation device for gas pipeline detection cable installation according to claim 1, characterized in that: A limiting wheel (104) is provided at the cable outlet end of the conveyor (100); the wheel surface of the limiting wheel (104) is concave and matches the width of the cable (200); and the axis of the limiting wheel (104) and the axis of the driving wheel (103) are inclined at an angle of 10° to 45°.

6. The auxiliary installation device for gas pipeline detection cable installation according to claim 4, characterized in that: A pressure sensor (306) is provided on the regulating block (303), and the pressure sensor (306) is connected to the rotating shaft (302) of the upper driving wheel (103) and is used to monitor the clamping force of the two driving wheels (103) and feed back the data to the electromagnetic pressure relief valve and the air pump.

7. The auxiliary installation device for gas pipeline detection cable installation according to claim 6, characterized in that: The end of the cable (200) is provided with a detachable magnetic cover (202), the magnetic cover (202), a threader (203) and a visual sensor (204); the threader (203) is provided with a clamping structure fixed to the electric wire (201).

8. The auxiliary installation device for gas pipeline detection cable installation according to claim 7, characterized in that: It also includes an industrial computer, which receives signals from the pressure sensor (306) and the visual sensor (204), and coordinates to control the rotation speed of the driving wheel (103), the rotation speed of the steering wheel (402), and the extension amount of the second telescopic rod (408), so as to dynamically adjust the bending radius and conveying speed of the cable (200).

9. The auxiliary installation device for gas pipeline detection cable installation according to claim 8, characterized in that: The output ends of the pressure sensor (306) and the visual sensor (204) are signal-connected to the input end of the industrial computer via wires, and the first motor (301), the second motor (403), the first telescopic rod (309) and the second telescopic rod (408) are bidirectionally signal-connected to the industrial computer via wires.

10. A method for installing a gas pipeline detection cable, using the auxiliary installation device for installing a gas pipeline detection cable according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, conveying the cable (200) through the adaptive clamping assembly of the conveyor (100), and starting the retractable drive unit in the double eccentric steering assembly; S2, using the retractable drive unit to drive the bogie (401) to move along the sliding groove (410), so that the arc-shaped rack (404) at the bottom of the bogie (401) meshes with the gear set, thereby controlling the movement trajectories of the two bogies (401) to intersect; S3, by adjusting the telescopic amount of the telescopic drive unit, changing the eccentric displacement of the bogie (401), so that the two steering wheels (402) form a guided extrusion on the cable (200); S4, dynamically adjusting the speed of the conveying unit of the conveyor (100) according to the bending shape of the cable (200) to compensate for the bending margin of the cable (200); S5. Anti-collision reversing is performed on the cable (200) by using the recessed steering wheel (402), thereby completing the continuous installation of the cable in the pipeline.

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