Electric power stringing device for engineering construction

Abstract

The invention relates to the field of electric power stringing, and discloses an electric power stringing device for engineering construction, which comprises a multi-stage telescopic cylinder, an inner tooth cylinder fixedly connected to a secondary jacking part of the multi-stage telescopic cylinder and an outer sleeve fixedly connected to a jacking part of the multi-stage telescopic cylinder, and is characterized in that the bottom of the multi-stage telescopic cylinder is fixedly connected with a base; limiting strips and T-shaped guide rods are fixedly connected to the left side and the right side of the inner tooth cylinder correspondingly. The length and the size of the device are greatly reduced by utilizing the contractibility of the multi-stage telescopic cylinder and the storage performance of the outer sleeve on the cable rack, storage and carrying are facilitated, when the multi-stage telescopic cylinder is controlled to stretch out and draw back, the cable rack moves upwards or resets relative to the outer sleeve after being automatically and horizontally unfolded, use is convenient and fast, the cable erecting and taking-up efficiency is improved, and the cable erecting and taking-up efficiency is improved. Meanwhile, the initial operation position of the cable rack is low, cable erection is easy and labor-saving, in addition, the actual stringing height can be controlled, and when the cable erection reaches the calibrated height, the cable is automatically controlled to be locked and fixed.

Description

Technical Field

[0001] The invention relates to the technical field of power line stringing, and in particular to a power line stringing device for engineering construction. Background Art

[0002] In order to meet the temporary electricity needs of the construction site during the construction process, a power transmission system needs to be set up, so temporary power wiring work is required. During the process, multiple cable support racks need to be set at intervals on the wiring path to support the cables, so as to avoid the cables dragging on the ground and causing electrical hazards and hindering ground construction activities.

[0003] The patent with publication number CN118249247B discloses an electric power line stringing device for construction engineering, including a lifting component, a hanging line component is provided at the top of the lifting component, universal wheels are provided at the four corners of the bottom outer wall of the lifting component, and the hanging line component includes an installation unit; when the invention is laying down the cable, the cable can be firstly wound around the winding unit, and then the winding unit is installed on the sprocket, so that the clamping unit has its own cable, and when the wire needs to be laid later, the cable can be pulled so that the cable is pulled apart, so that the cable is connected with the cable on another wire stringing device, so as to achieve the purpose of rapid wire laying, and when the cable needs to be removed later, the rotating rod can be rotated with a wrench, so that one of the sprockets rotates with other sprockets through the chain, so that multiple winding units rotate at the same time, so that multiple winding units wind up the cable, so as to achieve automatic winding of the cable, and reduce the difficulty of removing temporary wires in construction engineering.

[0004] When the power line stringing device in the above patent is in use, its main body is mainly composed of a lifting component and a hanging line component, wherein the height of the housing mounting frame of the lifting component is equivalent to the normal use height of the line stringing, and is also the minimum height of the line stringing. Since the general line stringing height needs to be at least higher than the height of a normal adult, when the power line stringing device is not deployed for use, although it is relatively neatly stored, its length is still large. At the same time, since the clamping units on both sides lack limit when stored, the connection between the mounting frame and the mounting frame is easy to loosen after multiple uses. If the device is tilted, the clamping unit is easy to automatically fall out, which affects storage and transportation; at the same time, when the control cable clamping unit is deployed for use, the two clamping units need to be manually pulled out and fixed, and since the mounting frame is high, the entire operation is relatively inconvenient; when the two clamping units are pulled out to a horizontal level for line stringing, the multiple reeling units lack reliable and effective locking, and the cable cannot be locked in the appropriate position according to the actual line stringing needs. When the cable in the reeling unit is not completely emptied, the erected cable is prone to dragging, sag, etc. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that the general power line stringing device is inconvenient to store, carry and string the cables when in use, and the cables lack reliable and effective locking. The present invention provides a power line stringing device for engineering construction.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A power line stringing device for engineering construction, comprising a multi-stage telescopic cylinder, an inner gear cylinder fixedly connected to a secondary lifting part of the multi-stage telescopic cylinder, and an outer sleeve fixedly connected to a lifting part of the multi-stage telescopic cylinder, wherein a base is fixedly connected to the bottom of the multi-stage telescopic cylinder, and both left and right sides of the inner gear cylinder are fixedly connected to limit bars and T-shaped guide rods; The left and right sides of the outer sleeve are provided with receiving grooves, and the upper and lower sides of the receiving groove are rotatably connected with a shaft rod and a gear rod respectively, the gear rod is meshed with the outer wall of the inner gear cylinder, and a transmission belt is movably sleeved between the two ends of the shaft rod and the gear rod, and a clamping frame arranged on the transmission belt is slidably clamped at the bottom of the receiving groove, and a shaft wheel is rotatably connected to the clamping frame, and a horizontal cutout is opened at the bottom of the front side of the shaft wheel, and the horizontal cutout can be movably abutted against the outer wall of the limit strip, and a guide groove is penetrated on the shaft wheel to be movably clamped with the T-shaped guide rod; A cable rack is fixedly connected to the top of the shaft wheel, and a plurality of wire clamping grooves are equidistantly provided on the inner side of the cable rack along the length direction. Arc plates are movably hinged on both sides of each wire clamping groove port, and a guide roller is rotatably connected to the top of the arc plate. A plurality of wire clamping adjustment components corresponding to the wire clamping grooves are provided in the cable rack, and a telescopic spring rod is provided between the wire clamping adjustment component and the arc plate. An elastic push rod is slidably connected to the rear wall of the cable rack, and an angled block is provided on the upper side of the storage groove. The bottom of the angled block has a slope, and a pressure sensor is provided on the slope. The elastic push rod can movably abut against the surface of the pressure sensor, and the pressure sensor can feedback control the multi-stage telescopic cylinder to stop.

[0007] Furthermore, a side of the transmission belt away from the inner gear cylinder is fixedly plugged with the clamping frame, and a side of the transmission belt close to the inner gear cylinder is movably plugged with the clamping frame.

[0008] Furthermore, the guide groove is composed of an arc groove close to the axis of the shaft wheel and a straight groove at the edge of the shaft wheel. The end of the arc groove away from the straight groove is located at the lower side of the axis of the shaft wheel, and the angles formed by the two ends of the arc groove and the axis of the shaft wheel are right angles. The straight groove extends to the outer surface of the shaft wheel and has a rounded edge design.

[0009] Furthermore, a movable groove corresponding to the T-shaped guide rod is opened in the middle of the shaft wheel.

[0010] Furthermore, the left and right side walls of the inner gear cylinder are both provided with avoidance grooves corresponding to the wire clamping assembly.

[0011] Furthermore, a semicircular ring is fixedly connected between the bevel blocks on both sides, the semicircular ring is slidably clamped on the rear wall of the inner cavity of the outer sleeve, the outer end of the bevel block is rotatably connected with a torsion block, and a torsion spring is arranged between the torsion block and the outer end of the bevel block; A plurality of linearly distributed scale grooves are provided on the left and right side walls of the outer sleeve, and the twist block is movably engaged with the scale grooves.

[0012] Furthermore, the wire clamping adjustment assembly includes a top pushing bent plate 1 and a top pushing bent plate 2 rotatably connected in the cable rack, the top pushing bent plate 1 and the top pushing bent plate 2 are respectively movably hinged with the corresponding telescopic spring rods, the top pushing bent plate 1 and the top pushing bent plate 2 are slidably connected, the top pushing bent plate 1 is provided with an inclined groove 1 in the middle, the top pushing bent plate 2 is provided with an inclined groove 2 in the middle, the rear end of the cable rack is slidably engaged with a wedge column, and the outer wall of the wedge column is fixedly connected with a pin protrusion which is movably engaged with the inclined groove 1 and the inclined groove 2 respectively.

[0013] Furthermore, the inclination directions of the first inclined slot and the second inclined slot are opposite.

[0014] Furthermore, the elastic push rod is provided with a wedge groove corresponding to the wedge column, and the wedge groove and the wedge column respectively have inclined surfaces abutting against each other.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention utilizes the contractility of the multi-stage telescopic cylinder and the storage capability of the outer sleeve for the cable rack, which greatly reduces the length and volume of the device, making it easy to store and carry. When the multi-stage telescopic cylinder is controlled to be extended or retracted, the cable rack automatically expands horizontally and then moves up or resets relative to the outer sleeve, which is convenient to use and improves the efficiency of laying and collecting wires. At the same time, since the cable rack is arranged near the bottom of the outer sleeve, when laying wires, the multi-stage telescopic cylinder is controlled to extend to drive the cable rack to expand horizontally, and the cable rack moves up slightly with the outer sleeve, just at a height that is convenient for human operation, making the laying of cables easy and labor-saving.

[0016] 2. After the cable rack is automatically unfolded horizontally, the present invention uses the bevel block and the pressure sensor to limit the upward movement height of the cable rack relative to the outer sleeve, thereby controlling the actual wiring height, and uses the pressure sensor to feedback the extrusion information of the elastic push rod, so as to control the multi-stage telescopic cylinder to stop twice, so that when the cable line is about to reach the calibrated height, it can prompt the control to pull the cable line relatively horizontal to eliminate sag, and then automatically stop rising when the cable line reaches the calibrated height, and control the wire clamping adjustment component to make the arc plate on the wire clamping groove deflect to lock the cable line, so as to avoid the cable line slipping during use and affecting the safety of electricity use, and the wiring is safe and reliable.

[0017] 3. When laying cables, the present invention utilizes T-shaped guide rods and limit bars to continuously limit the guide grooves on the shaft wheel, thereby ensuring that when the clamping frame moves upward, the shaft wheel drives the cable rack to deflect stably and then remain horizontal, which ensures that the laying of cables is stable and reliable, and the cable rack is stable in retracting and releasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the power line stringing device of the present invention; Figure 2 It is a three-dimensional cutaway view of the inner gear cylinder and the outer sleeve of the power line stringing device of the present invention; Figure 3 It is a three-dimensional structural diagram of the inner gear cylinder part of the power line stringing device of the present invention; Figure 4 The outer sleeve of the power line device of the present invention is cut out in three dimensions Figure 1 ; Figure 5 It is a three-dimensional cutaway view of the multi-stage telescopic cylinder and the outer sleeve of the power line stringing device of the present invention; Figure 6 It is a three-dimensional structural diagram of the shaft wheel and cable rack of the power line stringing device of the present invention; Figure 7 It is a three-dimensional cutaway view of the shaft wheel and cable rack of the power line stringing device of the present invention; Figure 8 It is a three-dimensional cutaway view of the cable rack portion of the power line stringing device of the present invention; Fig. 9 It is a three-dimensional exploded view of the first and second parts of the top push bending plate of the power line stringing device of the present invention; Fig.10 The outer sleeve of the power line device of the present invention is cut out in three dimensions Figure 2 ; Fig.11 The outer sleeve of the power line device of the present invention is cut out in three dimensions Figure 3 .

[0019] Figure numerals: 1. base; 11. multi-stage telescopic cylinder; 12. semicircular ring; 13. bevel block; 14. pressure sensor; 15. torsion block; 2. inner gear cylinder; 21. limit strip; 22. T-shaped guide rod; 3. outer sleeve; 31. shaft rod; 32. gear rod; 33. transmission belt; 34. scale groove; 4. clamping frame; 41. shaft wheel; 42. horizontal incision; 43. guide groove; 5. cable rack; 51. arc plate; 52. guide roller; 53. push bending plate one; 54. inclined groove one; 55. push bending plate two; 56. inclined groove two; 57. telescopic spring rod; 58. wedge column; 59. pin convex; 6. elastic push rod. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Embodiment 1 like Figure 1-Figure 11 As shown, a power line stringing device for engineering construction includes a multi-stage telescopic cylinder 11, an inner gear cylinder 2 fixedly connected to the secondary lifting part of the multi-stage telescopic cylinder 11, and an outer sleeve 3 fixedly connected to the lifting part of the multi-stage telescopic cylinder 11. The bottom of the multi-stage telescopic cylinder 11 is fixedly connected to a base 1, and the left and right sides of the inner gear cylinder 2 are fixedly connected to limit bars 21 and T-shaped guide rods 22; The outer sleeve 3 has a storage groove on both sides, and the upper and lower sides of the storage groove are rotatably connected with a shaft rod 31 and a gear rod 32 respectively, the gear rod 32 is meshed with the outer wall of the inner gear cylinder 2, and a transmission belt 33 is movably sleeved between the ends of the shaft rod 31 and the gear rod 32. A clamping frame 4 arranged on the transmission belt 33 is slidably clamped at the bottom of the storage groove, and a shaft wheel 41 is rotatably connected in the clamping frame 4. A horizontal cutout 42 is opened at the bottom of the front side of the shaft wheel 41, and the horizontal cutout 42 can be movably abutted against the outer wall of the limit strip 21. A guide groove 43 movably clamped with the T-shaped guide rod 22 is penetrated on the shaft wheel 41; A cable rack 5 is fixedly connected to the top of the shaft wheel 41, and a number of wire clamping grooves are equidistantly provided on the inner side of the cable rack 5 along the length direction. Arc plates 51 are movably hinged on both sides of the port of each wire clamping groove, and a guide roller 52 is rotatably connected to the top of the arc plate 51. A number of wire clamping adjustment components corresponding to the wire clamping grooves are provided in the cable rack 5, and a telescopic spring rod 57 is provided between the wire clamping adjustment component and the arc plate 51. An elastic push rod 6 is slidably connected to the rear wall of the cable rack 5, and an angled block 13 is provided on the upper side of the storage groove. The bottom of the angled block 13 has a slope, and a pressure sensor 14 is provided on the slope. The elastic push rod 6 can movably abut against the surface of the pressure sensor 14, and the pressure sensor 14 can feedback control the multi-stage telescopic cylinder 11 to stop.

[0022] When in use, the multi-stage telescopic cylinder 11 has a plurality of telescopic parts that can be telescoped synchronously. The multi-stage telescopic cylinder 11 is controlled to extend, and the top lifting part and the secondary lifting part thereof are automatically moved up, and the top lifting part is synchronously moved up relative to the secondary lifting part, and the corresponding gear rods 32 on both sides are meshed with the inner gear cylinder 2 to drive the transmission belt 33 to operate, and the transmission belt 33 automatically transports the card frame 4 upward along the storage groove, during which the T-shaped guide rod 22 is used to drive the guide groove 43 so that the shaft wheel 41 drives the cable rack 5 to deflect outward to a horizontal direction, and the horizontal cutout 42 on the shaft wheel 41 that is about to be separated from the T-shaped guide rod 22 is just aligned with and abutted against the surface of the limit strip 21. When the card frame 4 moves up, the shaft wheel 41 drives the cable rack 5 to remain horizontal, which is stable and reliable for the installation of the cable line. Since the cable rack 5 is initially arranged near the bottom position of the outer sleeve 3, after the cable rack 5 is horizontally unfolded, the upward movement distance of the cable rack 5 relative to the outer sleeve 3 is small. , at this time, the extension distance of the multi-stage telescopic cylinder 11 is also small, and the cable rack 5 is in a position relatively close to the ground, which is convenient for the wire-laying operation. The multi-stage telescopic cylinder 11 is controlled to continue to extend, and the required wire-laying height can be adjusted. When the cable rack 5 is just at a height that is convenient for human operation, the multi-stage telescopic cylinder 11 can be controlled to stop, so that the installation of the cable line can be easy and labor-saving. After the cable rack 5 is controlled to stop moving up, the cables are squeezed one by one on the arc plate 51 to compress the telescopic spring rod 57 and then pressed into the wire clamping groove. The cable line is overlapped on the wire clamping groove under the action of gravity. During this period, the rotation nature of the guide roller 52 is used to avoid the cable line and the arc plate 51 from being hard squeezed and worn. The telescopic spring rod 57 is used to drive the arc plate 51 to relatively surround and limit the cable line, reducing the probability of the cable line coming out during the process of laying, pulling and subsequent movement of the cable rack 5. At the same time, it is convenient for the subsequent collection device to directly pull the cable line out from the inner side of the arc plate 51; Subsequently, when the card frame 4 drives the shaft wheel 41 and the cable rack 5 to continue to move upward, since the elastic push rod 6 is in the same horizontal state as the cable rack 5, when the elastic push rod 6 squeezes the pressure sensor 14, the pressure sensor 14 controls the multi-stage telescopic cylinder 11 to automatically stop according to the initial pressure signal feedback. At this time, the height of the cable rack 5 is close to the required line height. According to the signal, the cable line traction mechanism can be controlled to fully pull and hold the cable line relatively horizontal to eliminate sag, and then the multi-stage telescopic cylinder 11 is controlled to continue to run and extend. As the cable rack 5 drives the elastic push rod 6 to continue to move upward, the end of the elastic push rod 6 is against the bevel block The extrusion pressure of the pressure sensor 14 on the inclined surface 13 increases, and when the extrusion pressure increases to the calibration level, the pressure sensor 14 controls the multi-stage telescopic cylinder 11 to stop for the second time according to the corresponding pressure signal feedback. At this time, the cable installation reaches the required calibration height, and the corresponding elastic push rod 6 automatically drives the cable clamping adjustment component to deflect the arc plate 51 on each cable clamping groove to lock and fix the cable, thereby preventing the cable from slipping during subsequent use and affecting the safety of electricity use. In addition, the contractility of the multi-stage telescopic cylinder 11 and the storage capacity of the outer sleeve 3 for the cable rack 5 are utilized to greatly reduce the length and volume of the device, making it easy to store and carry.

[0023] Embodiment 2, based on the above embodiment, provides a connection mechanism between the transmission belt 33 and the card frame 4: like Figure 6 As shown, the side of the transmission belt 33 away from the inner gear cylinder 2 is fixedly plugged with the clamping frame 4 , and the side of the transmission belt 33 close to the inner gear cylinder 2 is movably plugged with the clamping frame 4 .

[0024] When the outer sleeve 3 moves upward relative to the inner gear cylinder 2, the gear rods 32 on both sides of the outer sleeve 3 mesh with the inner gear cylinder 2 and rotate, thereby driving the transmission belt 33 to operate. The transmission belt 33 automatically transports the card frame 4 upward along the storage groove. Since the transmission belt 33 is movably connected between the shaft rod 31 and the two ends of the gear rod 32, the card frame 4 is balanced in force and moves upward stably and reliably.

[0025] Embodiment 3, based on the above embodiment, provides a guide groove 43 structure: like Figure 2 and Figure 6-Figure 7 As shown, the guide groove 43 is composed of an arc groove close to the axis of the shaft wheel 41 and a straight groove at the edge of the shaft wheel 41. The end of the arc groove away from the straight groove is at the lower side of the axis of the shaft wheel 41, and the angles formed by the two ends of the arc groove and the axis of the shaft wheel 41 are right angles. The straight groove extends to the outer surface of the shaft wheel 41 and the edges are rounded.

[0026] When the card frame 4 moves upward along the storage groove at the beginning, the arc groove in the guide groove 43 is driven by the T-shaped guide rod 22 to automatically drive the shaft wheel 41 to deflect. When the T-shaped guide rod 22 is movably engaged in the connecting area of ​​the arc groove and the straight groove, the shaft wheel 41 drives the cable rack 5 to deflect outward to the horizontal, and the card frame 4 drives the deflected shaft wheel 41 so that the horizontal cutout 42 is just at the lower end of the limit strip 21. As the card frame 4 continues to move upward, the T-shaped guide rod 22 is movably engaged with the vertical straight groove at this time, and the horizontal cutout 42 just abuts and cuts into the surface of the limit strip 21 and is parallel to the limit strip 21, thereby ensuring that the shaft wheel 41 drives the cable rack 5 to continue to be horizontal, which is stable and reliable for the subsequent cable installation. In this process, the straight groove ensures the stable switching of the shaft wheel 41 from the T-shaped guide rod 22 to the limit strip 21, so that when the multi-stage telescopic cylinder 11 is extended and retracted, the cable rack 5 is automatically horizontally expanded or reset, which is convenient to use and improves the efficiency of installation and collection.

[0027] Furthermore, a movable groove corresponding to the T-shaped guide rod 22 is formed in the middle of the shaft wheel 41 .

[0028] With this design, when the shaft wheel 41 is controlled to deflect, the shaft wheel 41 and the T-shaped guide rod 22 will not interfere with each other.

[0029] Embodiment 4, based on the above embodiment: like Figure 3-Figure 4As shown, the left and right side walls of the inner gear cylinder 2 are both provided with avoidance grooves corresponding to the wire clamping assembly.

[0030] With this design, the cable rack 5 can be lifted accordingly to drive the cable clamping assembly to a storage limit in the outer sleeve 3, thereby avoiding protrusion and affecting storage and transportation.

[0031] Embodiment 5, based on the above embodiment, provides a height adjustment mechanism of the bevel block 13: like Figure 4-Figure 5 As shown, a semicircular ring 12 is fixedly connected between the bevel blocks 13 on both sides, and the semicircular ring 12 is slidably clamped on the rear wall of the inner cavity of the outer sleeve 3. The outer end of the bevel block 13 is rotatably connected to a torsion block 15, and a torsion spring is arranged between the torsion block 15 and the outer end of the bevel block 13; A plurality of linearly distributed scale grooves 34 are provided on the left and right side walls of the outer sleeve 3 , and the twist block 15 is movably engaged with the scale grooves 34 .

[0032] When the various parts of the multi-stage telescopic cylinder 11 extend synchronously and drive the outer sleeve 3 to move upward relative to the inner gear cylinder 2, the cable rack 5 moves upward relative to the outer sleeve 3 synchronously, and the bevel block 13 limits the upward movement height of the cable rack 5 in the outer sleeve 3, thereby limiting the actual line-hanging height. By compressing the torsion spring, the torsion blocks 15 on both sides are deflected to be parallel to the bevel blocks 13, and then the torsion blocks 15 are clamped into the corresponding scale grooves 34 according to the corresponding line-hanging height requirements, thereby facilitating the control of the extension length of the multi-stage telescopic cylinder 11 and improving the line-hanging efficiency.

[0033] Embodiment 6, based on the above embodiment, provides a wire clamping adjustment component: like Figure 8-Figure 10 As shown, the wire clamping adjustment assembly includes a top pushing bent plate 53 and a top pushing bent plate 55 which are rotatably connected in the cable rack 5. The top pushing bent plate 53 and the top pushing bent plate 55 are respectively movably hinged with the corresponding telescopic spring rod 57. The top pushing bent plate 53 and the top pushing bent plate 55 are slidably connected. An inclined groove 54 is opened in the middle of the top pushing bent plate 53, and an inclined groove 56 is opened in the middle of the top pushing bent plate 55. A wedge column 58 is slidably clamped at the rear end of the cable rack 5, and a pin protrusion 59 is fixedly connected to the outer wall of the wedge column 58, which is movably clamped with the inclined groove 54 and the inclined groove 56 respectively.

[0034] The inclined groove 1 54 and the inclined groove 2 56 are inclined in opposite directions.

[0035] Furthermore, a wedge groove corresponding to the wedge column 58 is formed on the elastic push rod 6, and the wedge groove and the wedge column 58 respectively have inclined surfaces abutting against each other.

[0036] When the cable rack 5 drives the elastic push rod 6 to move upward and squeeze the inclined surface of the bevel block 13 to shrink, the elastic push rod 6 automatically uses the wedge groove to squeeze the wedge column 58 to drive the pin protrusion 59 to move forward, and the pin protrusion 59 drives the inclined groove 1 54 to make the push bending plate 1 53 deflect upward on one side, and drives the inclined groove 2 56 to make the push bending plate 2 55 deflect upward on the other side. The push bending plates 1 53 and the push bending plates 2 55 squeeze the telescopic spring rods 57 on both sides of the wire clamping groove at the same time, thereby driving the two arc plates 51 on the wire clamping groove to deflect inward to lock and fix the cable, thereby preventing the cable from slipping during use and affecting the safety of electricity use.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power line stringing device for engineering construction, comprising a multi-stage telescopic cylinder (11), an inner gear cylinder (2) fixedly connected to a secondary lifting portion of the multi-stage telescopic cylinder (11), and an outer sleeve (3) fixedly connected to a lifting portion of the multi-stage telescopic cylinder (11), characterized in that: The bottom of the multi-stage telescopic cylinder (11) is fixedly connected to a base (1), and the left and right sides of the inner gear cylinder (2) are fixedly connected to limit strips (21) and T-shaped guide rods (22); The outer sleeve (3) has a receiving groove on both the left and right sides, and the upper and lower sides of the receiving groove are rotatably connected with a shaft rod (31) and a gear rod (32), respectively, the gear rod (32) is meshed with the outer wall of the inner gear cylinder (2), and a transmission belt (33) is movably sleeved between the shaft rod (31) and the two ends of the gear rod (32), and a clamping frame (4) arranged on the transmission belt (33) is slidably clamped at the bottom of the receiving groove, and a shaft wheel (41) is rotatably connected in the clamping frame (4), and a horizontal cutout (42) is opened at the bottom of the front side of the shaft wheel (41), and the horizontal cutout (42) can be movably abutted with the outer wall of the limit strip (21), and a guide groove (43) movably clamped with the T-shaped guide rod (22) is penetrated on the shaft wheel (41); A cable rack (5) is fixedly connected to the top of the shaft wheel (41); a plurality of wire clamping grooves are equidistantly provided on the inner side of the cable rack (5) along the length direction; arc plates (51) are movably hinged on both sides of each wire clamping groove port; a guide roller (52) is rotatably connected to the top of the arc plate (51); a plurality of wire clamping adjustment components corresponding to the wire clamping grooves are provided in the cable rack (5); a telescopic spring rod (57) is provided between the wire clamping adjustment component and the arc plate (51); an elastic push rod (6) is slidably clamped on the rear wall of the cable rack (5); an angled block (13) is provided on the upper side of the storage groove; the bottom of the angled block (13) has a slope; a pressure sensor (14) is provided on the slope; the elastic push rod (6) can movably abut against the surface of the pressure sensor (14); and the pressure sensor (14) can feedback control the parking of the multi-stage telescopic cylinder (11).

2. A power line stringing device for engineering construction according to claim 1, characterized in that: The side of the transmission belt (33) away from the inner gear cylinder (2) is fixedly plugged into the clamping frame (4), and the side of the transmission belt (33) close to the inner gear cylinder (2) is movably plugged into the clamping frame (4).

3. The power line stringing device for engineering construction according to claim 2, characterized in that: The guide groove (43) is composed of an arc groove close to the axis of the shaft wheel (41) and a straight groove at the edge of the shaft wheel (41). The end of the arc groove away from the straight groove is located below the axis of the shaft wheel (41), and the angles formed by the two ends of the arc groove and the axis of the shaft wheel (41) are right angles. The straight groove extends to the outer surface of the shaft wheel (41) and has a rounded edge design.

4. The power line stringing device for engineering construction according to claim 3, characterized in that: A movable groove corresponding to the T-shaped guide rod (22) is provided in the middle of the shaft wheel (41).

5. The power line stringing device for engineering construction according to claim 4, characterized in that: The left and right side walls of the inner gear cylinder (2) are both provided with avoidance grooves corresponding to the wire clamping assembly.

6. The power line stringing device for engineering construction according to claim 5, characterized in that: A semicircular ring (12) is fixedly connected between the bevel blocks (13) on both sides, and the semicircular ring (12) is slidably clamped on the rear wall of the inner cavity of the outer sleeve (3). The outer end of the bevel block (13) is rotatably connected to a torsion block (15), and a torsion spring is provided between the torsion block (15) and the outer end of the bevel block (13); A plurality of linearly distributed scale grooves (34) are provided on the left and right side walls of the outer sleeve (3), and the twist block (15) is movably engaged with the scale grooves (34).

7. The power line stringing device for engineering construction according to claim 6, characterized in that: The wire clamping adjustment assembly comprises a push-pushing bent plate 1 (53) and a push-pushing bent plate 2 (55) which are rotatably connected in the cable rack (5); the push-pushing bent plate 1 (53) and the push-pushing bent plate 2 (55) are respectively movably hinged with corresponding telescopic spring rods (57); the push-pushing bent plate 1 (53) and the push-pushing bent plate 2 (55) are slidably connected; a slanted groove 1 (54) is provided in the middle of the push-pushing bent plate 1 (53); a slanted groove 2 (56) is provided in the middle of the push-pushing bent plate 2 (55); a wedge column (58) is slidably clamped at the rear end of the cable rack (5); and a pin protrusion (59) which is movably clamped with the slanted groove 1 (54) and the slanted groove 2 (56) is fixedly connected to the outer wall of the wedge column (58).

8. The power line stringing device for engineering construction according to claim 7, characterized in that: The inclined groove 1 (54) and the inclined groove 2 (56) are inclined in opposite directions.

9. The power line stringing device for engineering construction according to claim 8, characterized in that: The elastic push rod (6) is provided with a wedge groove corresponding to the wedge column (58), and the wedge groove and the wedge column (58) respectively have inclined surfaces that abut against each other.

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