Electric power engineering cable laying device

Abstract

The utility model relates to an electric power engineering cable laying device. Comprising a cable laying car, an unwinding installation frame is installed on the cable laying car, an unwinding support and a laying guide assembly are installed on the unwinding installation frame, the transverse position of the unwinding support can be adjusted, and an unwinding assembly used for loading a reel is installed on the unwinding support; the laying guide assembly comprises a mounting seat plate mounted on the unwinding mounting frame, a connecting rod mechanism is connected to the mounting seat plate in a pivoted mode, a guide pipe mechanism is connected to the mounting seat plate through the connecting rod mechanism, a buffering connecting mechanism located above the connecting rod mechanism is mounted on the mounting seat plate, and an elastic buffering mechanism is mounted between the connecting rod mechanism and the buffering connecting mechanism. A cable penetrating guide roller mechanism corresponding to a cable inlet of the guide pipe mechanism is installed on the upper portion of the guide pipe mechanism and used for guiding a cable, and the cable pressing guide wheel mechanism corresponding to a cable outlet of the guide pipe mechanism is installed in the middle of the guide pipe mechanism. According to the utility model, stable guiding unwinding and laying operation can be carried out under the pulling of the free end of the cable, the damage of the surface of the cable due to friction caused by manual pulling is avoided, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable laying technical field especially relates to a power engineering cable laying device. BACKGROUND

[0002] Power engineering construction refers to the process of installing, maintaining and constructing power equipment and power system in the field of electric power, and the proportion of cables in power lines is gradually increasing. Power cable is a cable product used for transmission and distribution of high-power electric energy in the main line of power system.

[0003] In the power engineering construction, the cable needs to be laid, and the cable laying refers to the process of laying and installing the cable along the planned path to form the cable line, which is an important technical link of power engineering. The cable laying device is a device for laying and laying the cable.

[0004] The existing cable laying device is mostly driven by a motor to rotate the wire reel, and then the cable is manually laid and laid. This not only has high labor intensity, but also has low work efficiency, and has the problem of not being convenient for transmission and guidance of the cable, which can easily cause friction on the surface of the cable and damage the surface of the cable. Therefore, it is urgent to design a power engineering cable laying device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of power engineering cable laying devices with reasonable structure design to solve the technical problems existing in prior art. The utility model can be guided and unwound stably under the pulling of the free end of cable, avoid the damage of cable surface due to friction caused by manual pulling, reduce the labor intensity of staff, and improve work efficiency.

[0006] The utility model discloses a kind of power engineering cable laying devices with reasonable structure design to solve the technical problems existing in prior art. The utility model can be guided and unwound stably under the pulling of the free end of cable, avoid the damage of cable surface due to friction caused by manual pulling, reduce the labor intensity of staff, and improve work efficiency.

[0007] The utility model discloses a kind of electric power engineering cable laying devices, and cable laying vehicle is arranged, the cable laying device of the utility model can be flexibly shifted to work site, and along the ditch that is dug moves and is laid to operate;The loading and unwinding operation of cable reel can be realized by the unwinding assembly and unwinding support arranged;The guiding and unwinding operation of cable can be realized by the laying guide assembly arranged, wherein the cable guide roller mechanism, guide pipe mechanism and cable pressing guide wheel mechanism can stably guide the unwinding of cable, cooperate cable laying vehicle to drive laying device whole movement, without manually pulling cable for laying by staff, reduce the labor intensity of staff and improve work efficiency, while the guiding of cable guide roller mechanism, guide pipe mechanism and cable pressing guide wheel mechanism can also avoid friction on the surface of cable even damage;The elastic buffering connection of guide pipe mechanism and cable pressing guide wheel mechanism and mounting seat plate can be realized by the connecting rod mechanism, elastic buffering mechanism and buffering connecting mechanism arranged, avoid cable pressing guide wheel mechanism from being jammed due to uneven ditch even rigidly collide with foreign matter in ditch and cause damage.

[0008] Preferably: reel temporary storage assembly with adjustable transverse position is installed on unwinding mounting frame, for temporary storage reel;The reel temporary storage assembly includes first mounting seat locked on the unwinding mounting frame, the reel holder is fixedly connected on the first mounting seat, the plug-in reel rod is fixedly connected on the reel holder and arranged longitudinally, for threading reel.

[0009] Preferably: the buffering connecting mechanism includes Y-shaped mounting head mounted on the mounting seat plate, the through-bar rotating plate is pivotally connected to the upper end of the Y-shaped mounting head, and the mounting through-hole for installing the elastic buffering mechanism is formed in the middle of the through-bar rotating plate;The elastic buffering mechanism includes the buffering connecting rod threaded in the mounting through-hole formed in the through-bar rotating plate, the connecting rod sleeve movably connected with the connecting rod mechanism is fixedly connected to the lower end of the buffering connecting rod, and the two buffering springs above and below the through-bar rotating plate are threaded on the buffering connecting rod, and the washer and spring pin for limiting the buffering spring are mounted on the upper part of the buffering connecting rod.

[0010] Preferably: the guide pipe mechanism includes the connecting plate fixedly connected with the cable pressing guide wheel mechanism and the cable threading guide pipe fixedly connected with the connecting plate, and the earth-moving plate is fixedly connected to the outer wall of the cable threading guide pipe away from the cable pressing guide wheel mechanism at the lower part of the cable threading guide pipe;The cable threading guide roller mechanism includes the support plate fixedly connected with the guide pipe mechanism, the rectangular cable threading frame above the upper end of the cable threading guide pipe is mounted on the support plate, and the pair of cable guide rollers are rotatably connected to the rectangular cable threading frame.

[0011] Preferably, the pressure cable guide pulley mechanism comprises an adjusting hole base fixedly connected with the guide pipe mechanism, a plurality of pin hole are arranged on the adjusting hole base in the circumferential direction, a guide pulley mounting base is locked and installed through bolts and locking nuts arranged in the pin hole, a pressure cable guide pulley is rotatably connected to the outer end of the guide pulley mounting base, and a V-shaped groove is arranged on the outer circumferential wall of the pressure cable guide pulley.

[0012] Preferably, the unwinding assembly comprises an unwinding shaft rotatably connected to the unwinding support and arranged transversely, a second flashboard is fixedly connected to the unwinding shaft, and a reel plug-in pin is fixedly connected to the second flashboard and can be inserted into a positioning hole arranged on the end face of the reel; the unwinding assembly further comprises a first flashboard movably arranged on the unwinding shaft in the axial direction, and a locking piece is screwed on the unwinding shaft to limit the first flashboard.

[0013] Preferably, the cable laying vehicle comprises a vehicle frame, a pushing handle is arranged at one end of the vehicle frame, first and second wheel shafts are rotatably connected to and arranged side by side at both ends of the vehicle frame, vehicle wheels are arranged at both ends of the first and second wheel shafts, a walking driving mechanism is arranged to drive the first and second wheel shafts to rotate synchronously, the walking driving mechanism comprises a first rotating shaft sprocket rotatably connected to the end of the first wheel shaft and a second rotating shaft sprocket rotatably connected to the end of the second wheel shaft, a transmission sprocket and a tension sprocket are rotatably connected to the vehicle frame, the transmission sprocket is a double-row sprocket, a transmission chain is arranged between the first rotating shaft sprocket and the transmission sprocket, and a transmission chain engaged with the tension sprocket is arranged between the transmission sprocket and the second rotating shaft sprocket, a gasoline engine is arranged on the vehicle frame, and a driving transmission pair is arranged between the output shaft of the gasoline engine and the second wheel shaft. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the main part of the utility model;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the laying guide assembly in the utility model;

[0017] Figure 4 is a three-dimensional structural schematic diagram of the cable laying vehicle in the utility model.

[0018] In the figure: 1, cable laying vehicle; 1-1, pushing handle; 1-2, first wheel shaft; 1-3, wheel; 1-4, first rotating shaft sprocket; 1-5, transmission sprocket; 1-6, tension sprocket; 1-7, second rotating shaft sprocket; 1-8, second wheel shaft; 1-9, driving transmission pair; 1-10, gasoline engine; 1-11, vehicle frame; 2, unwinding mounting frame; 3, reel temporary storage assembly; 3-1, first mounting seat; 3-2, reel supporting; 3-3, reel inserting rod; 4, unwinding assembly; 4-1, unwinding shaft; 4-2, locking piece; 4-3, first baffle disc; 4-4, second baffle disc; 4-5, reel bolt; 5, unwinding support; 6, laying guide assembly; 6-1, guide pipe mechanism; 6-1-1, earth moving plate; 6-1-2, cable penetrating guide pipe; 6-2, connecting rod mechanism; 6-2-1, lower connecting rod; 6-2-2, upper connecting rod; 6-3, elastic buffering mechanism; 6-3-1, buffering connecting rod; 6-3-2, buffering spring; 6-3-3, connecting rod sleeve; 6-4, buffering connecting mechanism; 6-4-1, Y-shaped mounting head; 6-4-2, penetrating rod rotating plate; 6-5, mounting seat plate; 6-6, U-shaped bolt; 6-7, cable penetrating guide roller mechanism; 6-7-1, rectangular cable penetrating frame; 6-7-2, cable guide roller; 6-8, cable pressing guide wheel mechanism; 6-8-1, adjusting hole seat; 6-8-2, guide wheel mounting seat; 6-8-3, cable pressing guide wheel; 6-8-4, cable laying baffle; 6-8-5, baffle connecting rod; 6-8-6, connecting rod sleeve. DETAILED DESCRIPTION

[0019] In order to further understand the application content, characteristics and effects of the utility model, the following embodiments are described in detail as follows:

[0020] Please see Figure 1 The power engineering cable laying device comprises a cable laying vehicle 1, an unwinding mounting frame 2 is installed on the cable laying vehicle 1, an unwinding support 5 with adjustable transverse position and a laying guide assembly 6 are installed on the unwinding mounting frame 2, and an unwinding assembly 4 for loading a reel is installed on the unwinding support 5.

[0021] As Figure 2As shown, the laying guide assembly 6 comprises a mounting base plate 6-5 mounted on the unwinding mounting frame 2, which is locked and connected with the unwinding mounting frame 2 through two groups of U-shaped bolts 6-6 and locking nuts. A connecting rod mechanism 6-2 is pivotally connected on the mounting base plate 6-5 and a guide pipe mechanism 6-1 is connected through the connecting rod mechanism 6-2. A buffer connecting mechanism 6-4 is mounted above the connecting rod mechanism 6-2 on the mounting base plate 6-5, and an elastic buffer mechanism 6-3 is mounted between the connecting rod mechanism 6-2 and the buffer connecting mechanism 6-4. A cable passing roller mechanism 6-7 corresponding to the cable inlet of the guide pipe mechanism 6-1 is mounted on the upper part of the guide pipe mechanism 6-1 for guiding the cable, and a cable pressing guide wheel mechanism 6-8 corresponding to the cable outlet of the guide pipe mechanism 6-1 is mounted in the middle part of the guide pipe mechanism 6-1.

[0022] Further referring to Figure 3 The buffer connecting mechanism 6-4 comprises a Y-shaped mounting head 6-4-1 mounted on the mounting base plate 6-5, a rod passing rotating plate 6-4-2 is pivotally connected on the upper end of the Y-shaped mounting head 6-4-1, and a mounting through hole for mounting the elastic buffer mechanism 6-3 is formed in the middle part of the rod passing rotating plate 6-4-2.

[0023] The elastic buffer mechanism 6-3 comprises a buffer connecting rod 6-3-1 passing through the mounting through hole formed in the rod passing rotating plate 6-4-2, a connecting rod sleeve 6-3-3 movably connected with the connecting rod mechanism 6-2 is fixedly connected on the lower end of the buffer connecting rod 6-3-1, two buffer springs 6-3-2 are respectively arranged above and below the rod passing rotating plate 6-4-2 by passing through the buffer connecting rod 6-3-1, and a gasket and a spring pin for limiting the buffer spring 6-3-2 are mounted on the upper part of the buffer connecting rod 6-3-1.

[0024] Further, the connecting rod mechanism 6-2 comprises a lower connecting rod 6-2-1 and an upper connecting rod 6-2-2 arranged side by side, the upper ends of the lower connecting rod 6-2-1 and the upper connecting rod 6-2-2 are pivotally connected with the mounting base plate 6-5 through a pin shaft, the lower ends of the lower connecting rod 6-2-1 and the upper connecting rod 6-2-2 are pivotally connected with the guide pipe mechanism 6-1 through a pin shaft, and a pin shaft for passing the connecting rod sleeve 6-3-3 is mounted on the middle part of the upper connecting rod 6-2-2.

[0025] As Figure 3As shown, the above-mentioned cable conduit mechanism 6-1 comprises a connecting plate fixedly connected with the pressure cable guide wheel mechanism 6-8 and a cable conduit 6-1-2 fixedly connected with the connecting plate, the cable conduit 6-1-2 comprises an integral vertical section and an arc section, wherein the upper end of the vertical section is directed to the cable outlet of the cable guide roller mechanism 6-7, and the lower end of the arc section is directed to the pressure cable guide wheel mechanism 6-8. In addition, the lower connecting rod 6-2-1 and the upper connecting rod 6-2-2 are both pivotally connected with the above-mentioned connecting plate in the cable conduit mechanism 6-1 through a pin shaft. A soil shoveling plate 6-1-1 is fixedly connected with the outer wall of the lower part of the cable conduit 6-1-2 away from the pressure cable guide wheel mechanism 6-8, which can push away the soil blocking the cable laying operation during the cable laying process.

[0026] The cable guide roller mechanism 6-7 comprises a support plate fixedly connected with the conduit mechanism 6-1, a rectangular cable guide frame 6-7-1 is installed on the support plate above the upper end of the cable conduit 6-1-2, and a plurality of cable guide rollers 6-7-2 are rotatably connected with the rectangular cable guide frame 6-7-1 in pairs. Two pairs of cable guide rollers 6-7-2 are installed on the middle part of the rectangular cable guide frame 6-7-1 and are vertically arranged in an upper-lower distribution.

[0027] As shown, Figure 3 The above-mentioned pressure cable guide wheel mechanism 6-8 comprises an adjusting hole seat 6-8-1 fixedly connected with the conduit mechanism 6-1, a plurality of pin shaft holes are arranged in the circumferential direction on the adjusting hole seat 6-8-1, a guide wheel mounting seat 6-8-2 is locked and installed on the adjusting hole seat 6-8-1 through bolts and locking nuts penetrating the pin shaft holes, a pressure cable guide wheel 6-8-3 is rotatably connected with the outer end of the guide wheel mounting seat 6-8-2, and the guide wheel mounting seat 6-8-2 has a Y-shaped structure. A V-shaped groove is formed on the outer peripheral wall of the pressure cable guide wheel 6-8-3. The pressure cable guide wheel mechanism 6-8 further comprises a connecting rod sleeve 6-8-6 fixedly connected with the adjusting hole seat 6-8-1, a baffle connecting rod 6-8-5 is penetratingly arranged in the connecting rod sleeve 6-8-6 and is locked and connected with the connecting rod sleeve 6-8-6 through a locking knob, and a cable laying baffle 6-8-4 is fixedly connected with the lower end of the baffle connecting rod 6-8-5.

[0028] A reel temporary storage assembly 3 is installed on the unwinding mounting frame 2 and is adjustable in transverse position, which is used for temporarily storing the reel; the reel temporary storage assembly 3 comprises a first mounting seat 3-1 locked and connected with the unwinding mounting frame 2, and the first mounting seat 3-1 is detachably connected with the unwinding mounting frame 2 through a U-shaped bolt and a locking nut. A reel supporting plate 3-2 is fixedly connected with the first mounting seat 3-1, and a longitudinal inserting rod 3-3 is fixedly connected with the reel supporting plate 3-2 and is used for penetrating the reel.

[0029] As shown, Figure 2As shown, the unwinding assembly 4 includes an unwinding shaft 4-1 which is transversely arranged and rotatably connected to the unwinding support 5, a second flashboard 4-4 is fixedly connected to the unwinding shaft 4-1, a reel pin 4-5 is fixedly connected to the second flashboard 4-4 and can be inserted into the positioning hole formed on the end face of the reel, a first flashboard 4-3 is arranged on the unwinding shaft 4-1 and can move along the axial direction of the unwinding shaft 4-1, a locking member 4-2 is screwed on the unwinding shaft 4-1 and is used for limiting the first flashboard 4-3, and the locking member 4-2 is a locking sleeve which is screwed on the unwinding shaft 4-1. In addition, the unwinding shaft 4-1 is rotatably connected to the unwinding support 5 through a rolling bearing, the unwinding support 5 includes a support rod portion, the support rod portion is locked and connected to the unwinding mounting frame 2 through a U-shaped bolt and a locking nut, a mounting sleeve which is transversely arranged is fixedly connected to the top of the support rod portion, and the unwinding shaft 4-1 is rotatably connected to the mounting sleeve through a rolling bearing.

[0030] In actual working process, when the reel on which the cable is wound needs to be loaded, the locking member 4-2 is unscrewed and the first flashboard 4-3 is removed, the reel is inserted into the unwinding shaft 4-1, the positioning hole formed on the end face of the reel is inserted and matched with the reel pin 4-5, then the first flashboard 4-3 is inserted into the unwinding shaft 4-1 again, the locking member 4-2 is screwed, the first flashboard 4-3 is in close contact with the reel, and finally the loading operation of the reel is realized.

[0031] Further referring to Figure 4 The cable laying vehicle 1 includes a vehicle frame 1-11, a pushing handle 1-1 is installed at one end of the vehicle frame 1-11, first and second wheel shafts 1-2 and 1-8 which are arranged side by side are rotatably connected to both ends of the vehicle frame 1-11, respectively, wheels 1-3 are installed at both ends of the first and second wheel shafts 1-2 and 1-8, and a walking driving mechanism is used for driving the first and second wheel shafts 1-2 and 1-8 to synchronously rotate.

[0032] The walking driving mechanism comprises a first rotating shaft sprocket 1-4 connected to the end of the first wheel shaft 1-2, a second rotating shaft sprocket 1-7 connected to the end of the second wheel shaft 1-8, a transmission sprocket 1-5 and a tension sprocket 1-6 rotatably connected to the frame 1-11, the tension sprocket 1-6 is provided with two, the two tension sprockets 1-6 are distributed in up and down, and the transmission sprocket 1-5 is a double-row sprocket; a transmission chain is arranged between the first rotating shaft sprocket 1-4 and the transmission sprocket 1-5, and a transmission chain meshing with the tension sprocket 1-6 is arranged between the transmission sprocket 1-5 and the second rotating shaft sprocket 1-7; a gasoline engine 1-10 is arranged on the frame 1-11, and a driving transmission pair 1-9 is arranged between the output shaft of the gasoline engine 1-10 and the second wheel shaft 1-8. The driving transmission pair 1-9 comprises a driving sprocket 1-9 connected to the output shaft of the gasoline engine 1-10, a driven sprocket 1-9 connected to the second wheel shaft 1-8, and a transmission chain arranged between the driving sprocket 1-9 and the driven sprocket 1-9.

[0033] Working principle:

[0034] When the cable laying operation is needed, the worker can hold the cable laying vehicle 1 and move it to the specified position, so that the cable pressing guide wheel mechanism 6-8 in the laying guide assembly 6 is deeply inserted into the dug trench; the cable reel wound with the cable is loaded on the unwinding assembly 4, the end of the cable is pulled to pass through the cable guide roller mechanism 6-7 and the guide pipe mechanism 6-1 in sequence, the cable passes out from the guide pipe mechanism 6-1 and then passes out from the cable pressing guide wheel mechanism 6-8, thereby realizing the directional guide of the cable, and the above-mentioned end is fixed in the dug trench; then the gasoline engine 1-10 in the cable laying vehicle 1 is started, so that the cable laying vehicle 1 walks forward along the trench, thereby the cable reel is unwound along the trench, under the guidance of the laying guide assembly 6 and the pulling of the free end of the cable, the cable is laid in the trench, the operation process is simple, the worker does not need to manually pull the cable for laying, the labor intensity of the worker is reduced and the work efficiency is improved.

Claims

1. A power engineering cable laying device, characterized by: The utility model provides a cable laying vehicle (1), install unwinding mounting bracket (2) on the cable laying vehicle (1), install the unwinding support (5) and the laying guide assembly (6) of adjustable transverse position on unwinding mounting bracket (2), install unwinding assembly (4) for loading the reel on unwinding support (5);Laying guide assembly (6) includes the mounting seat board (6-5) installed on unwinding mounting bracket (2), pivotally links the connecting rod mechanism (6-2) on the mounting seat board (6-5) and is connected with the guide pipe mechanism (6-1) through the connecting rod mechanism (6-2), the buffer connecting mechanism (6-4) located above the connecting rod mechanism (6-2) is installed on the mounting seat board (6-5), the elastic buffer mechanism (6-3) is installed between the connecting rod mechanism (6-2) and the buffer connecting mechanism (6-4), the cable guide roller mechanism (6-7) corresponding with the cable inlet of guide pipe mechanism (6-1) is installed on the upper portion of guide pipe mechanism (6-1) for guiding cable, still include the cable pressing guide wheel mechanism (6-8) corresponding with the cable outlet of guide pipe mechanism (6-1) is installed in the middle portion of guide pipe mechanism (6-1).

2. The power engineering cable laying device as described in claim 1, characterized in that: in Unwinding mounting bracket (2) is installed with the reel temporary storage assembly (3) of adjustable transverse position, for temporary storage reel;The reel temporary storage assembly (3) includes the first mounting seat (3-1) of locking connection on unwinding mounting bracket (2), the reel support (3-2) is fixedly connected on the first mounting seat (3-1), the longitudinal setting insert reel rod (3-3) is fixedly connected on the reel support (3-2) for the reel.

3. A power engineering cable laying device according to claim 1, characterised in that: Buffer connecting mechanism (6-4) includes Y type mounting head (6-4-1) installed on mounting seat board (6-5), pivotally connected with the rod passing rotary plate (6-4-2) on the upper end of Y type mounting head (6-4-1), the installation through -hole for installing elastic buffer mechanism (6-3) is set up in the middle portion of rod passing rotary plate (6-4-2);Elastic buffer mechanism (6-3) includes the buffer connecting rod (6-3-1) passing in the installation through -hole set up in rod passing rotary plate (6-4-2), the connecting rod sleeve (6-3-3) of active connection with connecting rod mechanism (6-2) is fixedly connected on the lower end of buffer connecting rod (6-3-1), still include two buffer springs (6-3-2) respectively located above and below rod passing rotary plate (6-4-2) passing in buffer connecting rod (6-3-1), the gasket and spring pin for the limiting buffer spring (6-3-2) are installed on the upper portion of buffer connecting rod (6-3-1).

4. The power engineering cable laying device according to claim 1, characterized in that: Guide pipe mechanism (6-1) includes the connecting plate of fixed connection with cable pressing guide wheel mechanism (6-8) and is fixedly connected with cable guide pipe (6-1-2) through connecting plate, the earth removal plate (6-1-1) is fixedly connected on the outer wall of the lower portion of cable guide pipe (6-1-2) away from cable pressing guide wheel mechanism (6-8);Cable guide roller mechanism (6-7) includes the support plate piece of fixed connection on guide pipe mechanism (6-1), the rectangular cable passing frame (6-7-1) located above the upper end of cable guide pipe (6-1-2) is installed on the support plate piece, a plurality of cable guide rollers (6-7-2) are rotatably connected on rectangular cable passing frame (6-7-1) and are arranged in pairs.

5. The power engineering cable laying device according to claim 1, characterized in that: The pressure cable guide pulley mechanism (6-8) comprises an adjusting hole seat (6-8-1) fixedly connected with the guide pipe mechanism (6-1), a plurality of pin shaft holes are arranged on the adjusting hole seat (6-8-1) in a circumferential direction, a guide pulley mounting seat (6-8-2) is locked and installed through bolts and locking nuts arranged in the pin shaft holes, a pressure cable guide pulley (6-8-3) is rotatably connected to the outer end of the guide pulley mounting seat (6-8-2), and a V-shaped groove is arranged on the outer circumferential wall of the pressure cable guide pulley (6-8-3).

6. The power engineering cable laying device according to claim 1, characterized in that: The unwinding assembly (4) comprises an unwinding shaft (4-1) rotatably connected to the unwinding support (5) and arranged transversely, a second flashboard (4-4) fixedly connected to the unwinding shaft (4-1), and a reel plug (4-5) inserted into a positioning hole arranged on the end face of the reel and fixedly connected to the second flashboard (4-4); the unwinding assembly (4) further comprises a first flashboard (4-3) arranged on the unwinding shaft (4-1) and movable along the axial direction of the unwinding shaft (4-1), and a locking member (4-2) screwed on the unwinding shaft (4-1) and used for limiting the first flashboard (4-3).

7. The power engineering cable laying device according to claim 1, characterized in that: The cable laying vehicle (1) comprises a vehicle frame (1-11), a pushing handle (1-1) mounted on one end of the vehicle frame (1-11), first and second wheel shafts (1-2) and (1-8) rotatably connected to and arranged side by side on both ends of the vehicle frame (1-11), and vehicle wheels (1-3) mounted on both ends of the first and second wheel shafts (1-2) and (1-8), a walking driving mechanism for driving the first and second wheel shafts (1-2) and (1-8) to synchronously rotate, and a gasoline engine (1-10) mounted on the vehicle frame (1-11); the walking driving mechanism comprises first and second rotating shaft sprockets (1-4) and (1-7) keyed to the ends of the first and second wheel shafts (1-2) and (1-8), respectively, a transmission sprocket (1-5) and a tension sprocket (1-6) rotatably connected to the vehicle frame (1-11), the transmission sprocket (1-5) being a double-row sprocket, a transmission chain arranged between the first rotating shaft sprocket (1-4) and the transmission sprocket (1-5), and a transmission chain engaged with the tension sprocket (1-6) arranged between the transmission sprocket (1-5) and the second rotating shaft sprocket (1-7); and a driving transmission pair (1-9) is arranged between the output shaft of the gasoline engine (1-10) and the second wheel shaft (1-8).

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