Positioning device for external damage of buried cable threading pipe

Abstract

A buried cable conduit external damage positioning device disclosed by the present invention comprises a shell, the top wall of the shell is provided with a sliding hole, the interior of the sliding hole is slidably connected with a mounting bin, the upper end of the mounting bin is provided with a camera assembly for positioning, and the front and rear sides of the lower ends of the left and right side walls of the shell are both provided with adjusting grooves. A sliding plate is connected between every two transversely adjacent adjusting grooves in a sliding mode, an advancing mechanism used for advancing is arranged in the shell, and the device further comprises a height adjusting mechanism and an advancing mechanism; the height adjusting mechanism comprises a jacking frame, a first U-shaped seat, a first connecting rod, a frame, a second U-shaped seat, a second connecting rod and a receding groove, according to the positioning device for buried cable threading pipe external damage, height adjustment of the camera is achieved so that different heights in a pipeline can be shot, and during adjustment, the gap of the advancing mechanism is increased so that positioning equipment can be prevented from rolling over; and the advancing wheels are inclined to better fit the radian of the inner wall of the pipeline, so that the positioning device can advance in the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of cable threading tube detection, in particular to a positioning device for the outer surface of an underground cable threading tube. Background Art

[0002] Cable threading pipe is a device used to protect cables. It is convenient for wiring and maintenance. For example, steel pipe, galvanized steel pipe, etc. have high strength, can withstand greater pressure and external force, have good shielding performance, can be used to prevent electromagnetic interference, and are suitable for places with extremely high requirements for cable protection, harsh environment or fire and explosion protection, such as industrial plants, mines, tunnels, etc., to make up for some traditional underground cable threading pipe external broken positioning devices are usually a radio remote-controlled car with a camera. Workers control the remote-controlled car through radio to move inside the cable threading pipe. During the movement, the camera is used to shoot the situation inside the pipeline. Then the workers determine where the pipeline is damaged. However, this remote-controlled car has great limitations. For example, the height position of the camera cannot be adjusted, and the tires of the remote-controlled car cannot change the angle. As the inside of the pipeline changes, the remote-controlled car becomes more difficult to move, which increases the difficulty of positioning. For this reason, we propose a positioning device for the external broken underground cable threading pipe. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a positioning device for the outside of an underground cable threading pipe, so that the camera height can be adjusted to shoot different heights inside the pipe. During adjustment, the clearance of the traveling mechanism is increased to prevent the positioning device from tipping over, and the traveling wheel is tilted to better fit the curvature of the inner wall of the pipe, which is beneficial for the positioning device to move in the pipe, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning device for the outer breaking of an underground cable threading tube, comprising a shell, a sliding hole is provided on the top wall of the shell, a mounting chamber is slidably connected inside the sliding hole, a camera assembly for positioning is provided at the upper end of the mounting chamber, adjustment grooves are provided at the front and rear sides of the lower ends of the left and right side walls of the shell, a slide plate is slidably connected between two laterally adjacent adjustment grooves, a traveling mechanism for traveling is provided inside the shell, and the shell also includes a height adjustment mechanism and a traveling mechanism; Height adjustment mechanism: it includes a lifting frame, a U-shaped seat 1, a connecting rod 1, a frame, a U-shaped seat 2, a connecting rod 2 and an avoidance groove, the lower side of the installation bin is provided with a lifting frame, the interior of the lifting frame is provided with a symmetrically distributed slidable U-shaped seat 1, the frame is arranged on the bottom wall of the shell, the interior of the frame is provided with a symmetrically distributed movable U-shaped seat 2, the interior of the front U-shaped seat 1 is rotatably connected with the connecting rod 2, the rear end of the connecting rod 2 is rotatably connected with the interior of the rear U-shaped seat 2, the interior of the rear U-shaped seat 1 is rotatably connected with the connecting rod 1, the front end of the connecting rod 1 is rotatably connected with the interior of the front U-shaped seat 2, and the middle part of the connecting rod 1 passes through the avoidance groove opened in the middle part of the connecting rod 2; Traveling mechanism: It is respectively arranged on the upper side of the slide plate. The interior of the shell is provided with an adjustment component for the gap between the slide plates to achieve the effect of adjusting the camera height, so that the conditions at different heights inside the pipeline can be photographed. In the process of adjusting the camera height, the gap between the traveling mechanisms is adjusted to avoid the situation where the center of the positioning device becomes higher and rolls over due to the increase in camera height. At the same time, the inclination of the traveling wheel can make it better fit the curvature of the inner wall of the pipeline, so that the positioning device can move better in the pipeline.

[0005] Furthermore, a battery and a single-chip microcomputer are respectively provided inside the installation compartment, and an input end of the single-chip microcomputer is electrically connected to an output end of the battery to provide power supply and stable control.

[0006] Furthermore, the height adjustment mechanism also includes a sliding column and a bidirectional screw rod. The sliding column is arranged between the front and rear inner walls of the lifting frame. The U-shaped seat 1 is slidably connected to the front and rear ends of the outer arc surface of the sliding column. A bidirectional screw rod is rotatably connected between the front and rear inner walls of the frame. The U-shaped seat 2 is threadedly connected to the front and rear ends of the bidirectional screw rod to facilitate height adjustment.

[0007] Furthermore, a motor is installed on the rear side of the frame, the output shaft of the motor is fixedly connected to the center of the rear side of the bidirectional lead screw, and the input end of the motor is electrically connected to the output end of the single-chip microcomputer for stable driving.

[0008] Furthermore, the traveling mechanism includes a mounting frame, a rotating plate, traveling wheels and a mounting plate. Mounting frames are provided at both ends of the upper side of the skateboard. The upper ends of the mounting frames are rotatably connected to the rotating plates. The ends of the rotating plates away from the mounting frames are provided with mounting plates. The middle parts of the mounting plates are rotatably connected to the traveling wheels to facilitate the movement of the equipment.

[0009] Furthermore, the travel mechanism also includes a dual-axis motor, a coupling and a rotating shaft. The dual-axis motor is installed in the middle part of the upper side surface of the skateboard, and couplings are provided at the output shaft ends of the left and right ends of the dual-axis motor. The travel wheels are rotatably connected to the middle part of the mounting plate through the rotating shaft, and the inner ends of the rotating shafts are fixedly connected to the outer ends of the laterally adjacent couplings. The output ends of the dual-axis motors are electrically connected to the output ends of the single-chip microcomputer to facilitate continued rotation after adjusting the angle.

[0010] Furthermore, the travel mechanism also includes an electric cylinder and a U-shaped seat three. Electric cylinders are installed on both ends of the upper side of the skateboard. U-shaped seats three are provided at the lower ends of the sides of the mounting plate close to the electric cylinders. The telescopic ends of the electric cylinders are connected to the internal rotation of the laterally adjacent U-shaped seats three. The output ends of the electric cylinders are electrically connected to the output ends of the single-chip microcomputer for stable driving.

[0011] Furthermore, the adjustment assembly includes a shift rack, a shift post, a rotating rod and a shift slot. A guide slot is provided on the left side wall of the frame, a shift rack is provided on the left side surface of the U-shaped seat 2, the middle part of the shift rack is slidably connected to the guide slot, and a shift post is provided on the upper side surface of the shift rack. The rotating rod is rotatably connected to the front and rear ends of the bottom wall of the shell respectively, and a shift slot is provided on the left and right ends of the rotating rod. A pin is provided on the lower side surface of the slide plate, and the lower end of the pin is located in the shift slot of the right end of the adjacent rotating rod on the lower side, and the shift post is located in the shift slot of the left end of the adjacent rotating rod at the front and rear sides to adjust the gap between the slide plates.

[0012] Furthermore, the camera assembly is a camera, which is respectively arranged on the front and rear sides and the upper side of the installation compartment. The output ends of the cameras are electrically connected to the output ends of the single-chip microcomputer to facilitate feedback of the damage of the threading tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the positioning device for the outer broken of the local buried cable threading pipe has the following advantages: 1. Through the cooperation of the jacking frame, sliding column, U-shaped seat 1, connecting rod 1, frame, two-way screw rod, U-shaped seat 2 and connecting rod 2, the camera height adjustment effect is achieved, so that the conditions at different heights inside the pipeline can be photographed.

[0014] 2. During the process of adjusting the camera height, the clearance between the travel mechanisms can be adjusted by adjusting the clearance between the slides with the cooperation of the lever frame, lever column, rotating rod, pin shaft and lever groove, so as to avoid the situation where the center of the positioning device becomes higher and rolls over due to the increase in camera height.

[0015] 3. The traveling wheel angle adjustment effect is achieved through the cooperation of the mounting frame, rotating rod, rotating shaft, traveling wheel and mounting plate. The traveling wheel can be tilted to better fit the curvature of the inner wall of the pipeline, so that the positioning device can move better in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the right side of the present invention; Figure 2 It is a schematic structural diagram of the right side section of the present invention; Figure 3 It is a schematic diagram of the structure of a part of the housing of the present invention; Figure 4 It is a schematic diagram of the structure of the present invention in a sectional top view from the upper side; Figure 5 It is a schematic diagram of the planar structure of the present invention in a right side cross-section; Figure 6 It is a partial structural schematic diagram of the height adjustment mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of a part of the bottom wall of the housing of the present invention; Figure 8 It is a schematic diagram of the structure enlarged at point A of the present invention.

[0017] In the figure: 1 housing, 2 height adjustment mechanism, 21 lifting frame, 22 sliding column, 23 U-shaped seat 1, 24 connecting rod 1, 25 frame, 26 bidirectional screw rod, 27 U-shaped seat 2, 28 connecting rod 2, 29 avoidance groove, 3 travel mechanism, 31 dual-axis motor, 32 coupling, 33 mounting frame, 34 rotating plate, 35 rotating shaft, 36 traveling wheel, 37 mounting plate, 38 electric cylinder, 39 U-shaped seat 3, 4 slide plate, 5 mounting bin, 6 sliding hole, 7 camera, 8 battery, 9 adjustment groove, 10 single-chip microcomputer, 11 motor, 12 guide slide groove, 13 shifting frame, 14 shifting column, 15 rotating rod, 16 pin shaft, 17 shifting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-8The present embodiment provides a technical solution: a positioning device for external damage of underground cable threading pipe, comprising a shell 1, a battery 8 and a single-chip microcomputer 10 are respectively arranged inside the installation chamber 5, the input end of the single-chip microcomputer 10 is electrically connected to the output end of the battery 8, a sliding hole 6 is opened on the top wall of the shell 1, and the installation chamber 5 is slidably connected inside the sliding hole 6, and a camera assembly for positioning is arranged on the upper end of the installation chamber 5, and the camera assembly is a camera 7, which is respectively arranged on the front and rear sides and the upper side of the installation chamber 5, and the output end of the camera 7 is electrically connected to the output end of the single-chip microcomputer 10. The worker controls the external controller to send a control instruction through the single-chip microcomputer 10 under the support of the radio, and the camera 7 starts to operate. The camera 7 transmits the situation inside the pipeline to the external display through the single-chip microcomputer 10 by radio in real time. The worker observes the picture received by the display to determine whether the pipeline is damaged. The front and rear sides of the lower end of the left and right side walls of the shell 1 are both provided with adjustment slots 9, and a slide plate 4 is slidably connected between two laterally adjacent adjustment slots 9. A traveling mechanism 3 for traveling is arranged inside the shell 1, and it also includes a height adjustment mechanism 2 and a traveling mechanism 3; Height adjustment mechanism 2: It includes a lifting frame 21, a U-shaped seat 1 23, a connecting rod 1 24, a frame 25, a U-shaped seat 27, a connecting rod 28 and an avoidance groove 29. The lower side of the installation chamber 5 is provided with a lifting frame 21, and the interior of the lifting frame 21 is provided with a symmetrically distributed slidable U-shaped seat 1 23. The frame 25 is arranged on the bottom wall of the shell 1, and the interior of the frame 25 is provided with a symmetrically distributed movable U-shaped seat 27. The interior of the front U-shaped seat 1 23 is rotatably connected with a connecting rod 28, and the rear end of the connecting rod 28 is connected to the inner portion of the rear U-shaped seat 27. The U-shaped seat 23 at the rear side is internally connected with a connecting rod 24 for rotation, and the front end of the connecting rod 24 is internally connected with the U-shaped seat 27 at the front side for rotation. The middle part of the connecting rod 24 passes through the avoidance groove 29 provided in the middle part of the connecting rod 28. The height adjustment mechanism 2 also includes a sliding column 22 and a bidirectional screw rod 26. The sliding column 22 is arranged between the front and rear inner walls of the jacking frame 21. The U-shaped seat 23 is respectively slidably connected to the front and rear ends of the outer arc surface of the sliding column 22. The front and rear inner walls of the frame 25 are rotatably connected with a bidirectional screw rod 26. The U-shaped seat 27 is divided into a sliding column 22 and a bidirectional screw rod 26. The two ends of the two-way screw rod 26 are connected to each other by threads. A motor 11 is installed on the rear side of the frame 25. The output shaft of the motor 11 is fixedly connected to the center of the rear side of the two-way screw rod 26. The input end of the motor 11 is electrically connected to the output end of the single-chip microcomputer 10. According to the situation of the pipeline, the worker can adjust the shooting height of the camera 7 through the height adjustment mechanism 2. The worker controls the external controller with the support of the radio to send a control command through the single-chip microcomputer 10, and the motor 11 starts to run. The output shaft of the motor 11 drives the two-way screw rod 26 to rotate. Under the cooperation of , the two U-shaped seats 27 move towards each other, thereby driving the lower ends of the connecting rods 1 24 and 28 to move. At this time, under the restriction of the U-shaped seat 1 23, the installation compartment 5 is pushed upward by the lifting frame 21. At this time, the U-shaped seat 1 23 slides on the outer arc surface of the sliding column 22, and the two ends of the connecting rods 1 24 and 28 rotate inside the corresponding U-shaped seat 1 23 and U-shaped seat 27, respectively. The avoidance groove 29 provides avoidance for the connecting rods 1 24 and 28 during the folding process, so as to facilitate the adjustment of the shooting height of the camera 7; Traveling mechanism 3: It is respectively arranged on the upper side of the skateboard 4. The traveling mechanism 3 includes a mounting frame 33, a rotating plate 34, a traveling wheel 36 and a mounting plate 37. The left and right ends of the upper side of the skateboard 4 are provided with mounting frames 33. The upper ends of the mounting frames 33 are rotatably connected with the rotating plates 34. The ends of the rotating plates 34 away from the mounting frames 33 are provided with mounting plates 37. The middle parts of the mounting plates 37 are rotatably connected with the traveling wheels 36. The traveling mechanism 3 also includes a double-axis motor 31, a coupling 32 and a rotating shaft 35. The middle part of the upper side of the skateboard 4 is provided with a double-axis motor 31. The output shaft ends of the left and right ends of the double-axis motor 31 are provided with couplings 32. The traveling wheels 36 are rotatably connected to the middle part of the mounting plate 37 through the rotating shaft 35. The inner ends of the rotating shafts 35 are connected to the couplings 32 adjacent to the lateral direction. The outer end is fixedly connected, the output ends of the dual-axis motor 31 are electrically connected to the output end of the single-chip microcomputer 10, the travel mechanism 3 also includes an electric cylinder 38 and a U-shaped seat three 39, the electric cylinder 38 is installed on the left and right ends of the upper side of the slide plate 4, and the lower end of the side of the mounting plate 37 close to the electric cylinder 38 is provided with a U-shaped seat three 39, the telescopic end of the electric cylinder 38 is connected to the internal rotation of the laterally adjacent U-shaped seat three 39, and the output end of the electric cylinder 38 is electrically connected to the output end of the single-chip microcomputer 10, and the interior of the housing 1 is provided with an adjustment component for the gap between the slide plates 4, the adjustment component includes a shifting frame 13, a shifting column 14, a rotating rod 15 and a shifting groove 17, the left side wall of the frame 25 is provided with a guide slide groove 12, the left side of the U-shaped seat two 27 is provided with a shifting frame 13, and the middle part of the shifting frame 13 is connected to the guide slide groove 1 2 sliding connection, the upper side of the shifting frame 13 is provided with a shifting column 14, the rotating rod 15 is rotatably connected to the front and rear ends of the bottom wall of the shell 1 respectively, the left and right ends of the rotating rod 15 are provided with a shifting groove 17, the lower side of the slide plate 4 is provided with a pin shaft 16, the lower end of the pin shaft 16 is located inside the shifting groove 17 at the right end of the rotating rod 15 adjacent to the lower side, and the shifting column 14 is located inside the shifting groove 17 at the left end of the rotating rod 15 adjacent to the front and rear. The worker controls the external controller with the support of the radio and sends a control command through the single-chip microcomputer 10, the double-axis motor 31 starts to run, the output shaft of the double-axis motor 31 drives the adjacent rotating shaft 35 to rotate through the coupling 32, and then drives the traveling wheel 36 to rotate. At this time, the positioning device starts to travel inside the buried cable threading tube, and the camera 7 is adjusted to take pictures. During the process of photographing the height, when the U-shaped seat 27 moves inward, it drives the entire body composed of the adjacent shifting frame 13 and the shifting column 14 to move, and then shifts the shifting groove 17 at the left end of the adjacent rotating rod 15, thereby forcing the left end of the rotating rod 15 to rotate inward. At this time, the shifting groove 17 at the left end of the rotating rod 15 slides and rotates along the arc surface of the shifting column 14, and the rotating rod 15 rotates through the shifting groove 17 at its right end to shift the adjacent pin shafts 16 in the direction in which the two pin shafts 16 move away from each other. At this time, the shifting groove 17 at the right end of the rotating rod 15 slides and rotates along the arc surface of the adjacent pin shafts 16, thereby pushing the slide plate 4 to move in the direction in which they move away from each other, thereby increasing the gap between the traveling mechanisms 3, and avoiding the situation in which the center of the positioning device becomes higher and overturns due to the increase in the height of the camera 7.The inclination angle of the traveling wheel 36 can also be adjusted according to the situation inside the pipeline, so as to better travel in the pipeline. The worker controls the external controller with the support of the radio, and issues a control command through the single-chip microcomputer 10, and the electric cylinder 38 operates. The telescopic end of the electric cylinder 38 pushes the adjacent U-shaped seat 39 to move outward. At this time, the mounting plate 37 rotates under the restriction of the rotating plate 34. At this time, the U-shaped seat 39 rotates along the telescopic end of the adjacent electric cylinder 38, and then the mounting plate 37 drives the traveling wheel 36 to rotate synchronously. At this time, the inclination angle adjustment of the traveling wheel 36 is completed. During the process of adjusting the inclination angle of the traveling wheel 36, the rotating shaft 35 rotates synchronously. Under the characteristic of the coupling 32 compensating for the axis deviation, the dual-axis motor 31 continuously drives the rotating shaft 35 to rotate through the coupling 32, and the traveling wheel 36 continues to rotate. The positioning device continues to travel inside the pipeline and adjusts the inclination angle of the traveling wheel 36 to better travel in the pipeline.

[0020] The working principle of the external broken positioning device for underground cable threading pipe provided by the present invention is as follows: a worker controls an external controller and issues a control command through a single-chip microcomputer 10 with the support of radio, and a dual-axis motor 31 starts to run. The output shaft of the dual-axis motor 31 drives the adjacent rotating shaft 35 to rotate through a coupling 32, and then drives the traveling wheel 36 to rotate. At this time, the positioning device starts to move inside the underground cable threading pipe. At the same time, a worker controls an external controller and issues a control command through a single-chip microcomputer 10 with the support of radio, and a camera 7 starts to run. The camera 7 transmits the situation inside the pipeline to an external display through the single-chip microcomputer 10 by radio in real time. The worker observes the picture received by the display to determine whether the pipeline is damaged. According to the pipeline In this case, the worker can adjust the shooting height of the camera 7 through the height adjustment mechanism 2. The worker manipulates the external controller with the support of the radio to send a control command through the single-chip microcomputer 10, and the motor 11 starts to run. The output shaft of the motor 11 drives the bidirectional screw 26 to rotate. With the cooperation of the thread, the two U-shaped seats 27 move toward each other, thereby driving the lower ends of the connecting rod 1 24 and the connecting rod 28 to move. At this time, under the restriction of the U-shaped seat 1 23, the jacking frame 21 pushes the installation bin 5 to move upward. At this time, the U-shaped seat 1 23 slides on the outer arc surface of the sliding column 22, and the two ends of the connecting rod 1 24 and the connecting rod 28 rotate inside the corresponding U-shaped seat 1 23 and the U-shaped seat 27, respectively. The avoidance groove 29 provides a connection between the connecting rod 1 24 and the connecting rod 28. During the folding process, when the U-shaped seat 27 moves inward, the adjacent shifting frame 13 and the shifting column 14 are driven to move as a whole, thereby shifting the shifting groove 17 at the left end of the adjacent rotating rod 15, thereby forcing the left end of the rotating rod 15 to rotate inward. At this time, the shifting groove 17 at the left end of the rotating rod 15 slides and rotates along the arc surface of the shifting column 14, and the rotating rod 15 rotates through the shifting groove 17 at its right end to shift the adjacent pin shafts 16 in the direction in which the two pin shafts 16 move away from each other. At this time, the shifting groove 17 at the right end of the rotating rod 15 slides and rotates along the arc surface of the adjacent pin shafts 16, thereby pushing the slide plate 4 to move in the direction in which they move away from each other, thereby increasing the gap between the traveling mechanisms 3, avoiding the increase in the height of the camera 7. In case the center of the positioning device becomes higher and overturns, the inclination angle of the traveling wheel 36 can be adjusted according to the situation inside the pipeline so as to better travel in the pipeline. The worker controls the external controller with the support of the radio to issue a control command through the single-chip microcomputer 10, and the electric cylinder 38 starts to operate. The telescopic end of the electric cylinder 38 pushes the adjacent U-shaped seat three 39 to move outward. At this time, the mounting plate 37 rotates under the restriction of the rotating plate 34. At this time, the U-shaped seat three 39 rotates along the telescopic end of the adjacent electric cylinder 38, and then the mounting plate 37 drives the traveling wheel 36 to rotate synchronously. At this time, the inclination angle adjustment of the traveling wheel 36 is completed. During the process of adjusting the inclination angle of the traveling wheel 36, the rotating shaft 35 rotates synchronously. Under the characteristic of the coupling 32 compensating for the axis deviation,The dual-axis motor 31 continuously drives the rotating shaft 35 to rotate through the coupling 32, and the traveling wheel 36 continuously rotates, and the positioning device continuously moves inside the pipeline.

[0021] It is worth noting that the dual-axis motor 31 disclosed in the above embodiments can use model 42BH2B38-104, the electric cylinder 38 can use model FY0141, the camera 7 can use a high-definition camera, the single-chip microcomputer 10 can use a single-chip microcomputer with radio function, and the motor 11 can use model HC-KFE73. The single-chip microcomputer 10 controls the operation of the dual-axis motor 31, the electric cylinder 38, the camera 7 and the motor 11 using methods commonly used in the prior art.

[0022] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A positioning device for the outer part of an underground cable threading tube, comprising a housing (1), a top wall of the housing (1) is provided with a sliding hole (6), the interior of the sliding hole (6) is slidably connected to a mounting chamber (5), the upper end of the mounting chamber (5) is provided with a camera assembly for positioning, the front and rear sides of the lower ends of the left and right side walls of the housing (1) are provided with adjustment grooves (9), a slide plate (4) is slidably connected between two laterally adjacent adjustment grooves (9), and a traveling mechanism (3) for traveling is provided inside the housing (1), characterized in that: It also includes a height adjustment mechanism (2) and a travel mechanism (3); The height adjustment mechanism (2) comprises a lifting frame (21), a U-shaped seat (23), a connecting rod (24), a frame (25), a U-shaped seat (27), a connecting rod (28) and an avoidance groove (29), wherein the lower side of the installation bin (5) is provided with a lifting frame (21), the interior of the lifting frame (21) is provided with symmetrically distributed slidable U-shaped seat (23), the frame (25) is arranged on the bottom wall of the housing (1), and the interior of the frame (25) is provided with symmetrically distributed slidable A movable U-shaped seat 2 (27), the interior of the front U-shaped seat 1 (23) is connected to a connecting rod 2 (28), the rear end of the connecting rod 2 (28) is connected to the interior of the rear U-shaped seat 2 (27), the interior of the rear U-shaped seat 1 (23) is connected to a connecting rod 1 (24), the front end of the connecting rod 1 (24) is connected to the interior of the front U-shaped seat 2 (27), and the middle part of the connecting rod 1 (24) passes through an avoidance groove (29) provided in the middle part of the connecting rod 2 (28); Traveling mechanisms (3): they are respectively arranged on the upper side surfaces of the slide plates (4); and an adjustment component for the gap between the slide plates (4) is provided inside the housing (1).

2. The positioning device for the outer broken part of the underground cable threading tube according to claim 1 is characterized in that: A storage battery (8) and a single-chip microcomputer (10) are respectively arranged inside the installation compartment (5), and an input end of the single-chip microcomputer (10) is electrically connected to an output end of the storage battery (8).

3. The positioning device for the outer broken part of the underground cable threading tube according to claim 2 is characterized in that: The height adjustment mechanism (2) further comprises a slide column (22) and a bidirectional screw rod (26), wherein the slide column (22) is arranged between the front and rear inner walls of the lifting frame (21), the U-shaped seat 1 (23) is slidably connected to the front and rear ends of the outer arc surface of the slide column (22), the bidirectional screw rod (26) is rotatably connected between the front and rear inner walls of the frame (25), and the U-shaped seat 2 (27) is threadedly connected to the front and rear ends of the bidirectional screw rod (26).

4. The positioning device for the outer broken part of the underground cable threading tube according to claim 3 is characterized in that: A motor (11) is installed on the rear side of the frame (25); an output shaft of the motor (11) is fixedly connected to the center of the rear side of the bidirectional lead screw (26); and an input end of the motor (11) is electrically connected to an output end of the single-chip microcomputer (10).

5. The positioning device for the outer broken part of the underground cable threading tube according to claim 2 is characterized in that: The travel mechanism (3) comprises a mounting frame (33), a rotating plate (34), a travel wheel (36) and a mounting plate (37); the left and right ends of the upper side surface of the slide plate (4) are provided with mounting frames (33); the upper ends of the mounting frames (33) are rotatably connected to the rotating plate (34); the ends of the rotating plates (34) away from the mounting frame (33) are provided with mounting plates (37); and the middle parts of the mounting plates (37) are rotatably connected to the travel wheels (36).

6. The positioning device for the outer broken part of the underground cable threading tube according to claim 5, characterized in that: The travel mechanism (3) further comprises a dual-axis motor (31), a coupling (32) and a rotating shaft (35); the dual-axis motor (31) is mounted in the middle of the upper side surface of the slide plate (4); couplings (32) are mounted at the ends of the output shafts at both left and right ends of the dual-axis motor (31); the travel wheels (36) are rotatably connected to the middle of the mounting plate (37) via the rotating shaft (35); the inner ends of the rotating shafts (35) are fixedly connected to the outer ends of the couplings (32) adjacent to each other in the transverse direction; and the output ends of the dual-axis motors (31) are electrically connected to the output ends of the single-chip computer (10).

7. The positioning device for the outer surface of an underground cable threading tube according to claim 5, characterized in that: The travel mechanism (3) further comprises an electric cylinder (38) and a U-shaped seat three (39), the electric cylinder (38) being mounted on both left and right ends of the upper side surface of the slide plate (4), the U-shaped seat three (39) being mounted on the lower end of the side surface of the mounting plate (37) close to the electric cylinder (38), the telescopic end of the electric cylinder (38) being rotatably connected to the inside of the U-shaped seat three (39) adjacent to the electric cylinder (38), and the output end of the electric cylinder (38) being electrically connected to the output end of the single-chip computer (10).

8. The positioning device for the outer surface of an underground cable threading tube according to claim 1, characterized in that: The adjustment assembly comprises a shifting frame (13), a shifting column (14), a rotating rod (15) and a shifting groove (17). The left side wall of the frame (25) is provided with a guide groove (12). The left side surface of the second U-shaped seat (27) is provided with a shifting frame (13). The middle part of the shifting frame (13) is slidably connected to the guide groove (12). The upper side surface of the shifting frame (13) is provided with a shifting column (14). The rotating rod (15) is rotatably connected to the front and rear ends of the bottom wall of the shell (1). The left and right ends of the rotating rod (15) are provided with a shifting groove (17). The lower side surface of the slide plate (4) is provided with a pin shaft (16). The lower end of the pin shaft (16) is located inside the shifting groove (17) at the right end of the rotating rod (15) adjacent to the lower side. The shifting column (14) is located inside the shifting groove (17) at the left end of the rotating rod (15) adjacent to the front and rear sides.

9. The positioning device for the outer surface of an underground cable threading tube according to claim 2, characterized in that: The camera assembly is a camera (7), which is respectively arranged on the front and rear sides and the upper side of the installation compartment (5), and the output ends of the camera (7) are electrically connected to the output ends of the single-chip computer (10).

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