Overhead power transmission hoisting device

Abstract

The utility model discloses an overhead power transmission hoisting device, which belongs to the technical field of power transmission engineering and comprises a traveling base, a hoisting winch assembly, a front top plate, a telescopic beam, a front pressing frame and a locking bolt. The front top plate is fixed to the front portion of the walking base and forms a vertical end face abutting against a tower foundation pile, the telescopic beams are installed on the two sides of the upper portion of the front top plate in a bilateral symmetry mode, the front pressing frame is installed at the front ends of the telescopic beams, and the front top plate, the telescopic beams and the front pressing frame form a door-shaped frame structure with the adjustable opening degree. And the locking bolts are used for clamping the tower foundation piles on the inner side of the opening of the door-shaped frame structure. The device not only solves the problems that a traditional crane crushes farmland and is high in cost, but also can adapt to complex terrains to realize efficient and safe operation, and is particularly suitable for accurate conveying of small-batch materials, and the construction cost is greatly reduced, and the hoisting precision and the field adaptability are improved due to the miniaturized design of taking the tower foundation pile as a fulcrum.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission engineering technology, and in particular relates to an overhead power transmission hoisting device. Background Technology

[0002] A power transmission overhead line is a steel structure used to support and erect high-voltage transmission lines, typically consisting of steel supports and concrete piles. The steel supports, as the main structure, bear the conductors and insulators, while rectangular concrete tower piles are located at the four corners of the supports. These piles are deeply buried underground, stabilizing the overall structure, distributing the load, and preventing settlement. This ensures the overhead line remains stable under severe weather or external forces, thus guaranteeing the safe operation of the transmission line. This design combines strength and durability and is a common support method in power transmission networks.

[0003] Currently, construction materials for elevated structures are typically transported and hoisted using large cranes and other heavy lifting vehicles, a method with numerous drawbacks. First, the rental, fuel, and maintenance costs of large lifting equipment are high, increasing the economic burden of construction, especially for small-scale or dispersed operations where cost-effectiveness is extremely low. Second, the large size and weight of cranes and other vehicles can severely damage crops and soil structure when traversing soft or narrow areas such as farmland and woodlands, affecting subsequent cultivation and even causing disputes with farmers. Furthermore, frequent lifting, moving, and positioning of small-volume, multi-batch materials leads to low operational efficiency, making it difficult to meet the demands of precise construction. Simultaneously, the scheduling and transportation of large equipment are limited by road conditions, with poor accessibility in remote or complex terrain areas, further restricting construction flexibility. Finally, traditional hoisting methods require highly skilled operators and pose certain safety risks, such as crane boom collisions with elevated structures or load swaying due to wind, increasing construction hazards. Therefore, there is an urgent need for a lighter, more efficient, and less environmentally impactful new material transportation solution. Utility Model Content

[0004] In view of the problems of high cost, low operation efficiency, poor site adaptability, easy damage to farmland crops and safety hazards caused by the reliance on large lifting equipment in the existing technology for elevated construction, this utility model provides an elevated power transmission hoisting device.

[0005] This utility model is implemented as follows: an elevated power transmission hoisting device, characterized in that it includes a traveling base, a hoisting winch assembly, a front top plate, a telescopic beam, a front pressure frame, and locking bolts. The traveling base is equipped with traveling rollers. The hoisting winch assembly is installed on the traveling base. The front top plate is fixed to the front of the traveling base and forms a vertical end face that abuts against the tower foundation pile. The telescopic beam is symmetrically installed on both sides of the upper part of the front top plate. The front pressure frame is installed at the front end of the telescopic beam. The front top plate, telescopic beam, and front pressure frame form a portal frame structure with an adjustable opening. The locking bolts are installed on the front pressure frame and are used to clamp the tower foundation pile inside the opening of the portal frame structure.

[0006] In the above technical solution, preferably, the upper part of the front top plate is symmetrically installed on the guide sleeve, the telescopic beam is installed in the guide sleeve and moves axially under the action of the guide sleeve, the axis of the telescopic beam is perpendicular to the vertical end face of the front top plate, and the telescopic beam is evenly distributed with positioning screw holes along the axial direction, and at least one of the positioning screw holes is fitted with a limit screw by thread, the limit screw being used to limit the opening of the portal frame structure.

[0007] In the above technical solution, preferably, the walking base includes a base and wheels mounted on the base.

[0008] In the above technical solution, preferably, the guide sleeve is provided with a radial through hole, and the limiting screw passes through the radial through hole and is connected to the positioning screw hole of the telescopic beam.

[0009] In the above technical solution, preferably, a handle is installed at the rear end of the telescopic beam.

[0010] This utility model provides an elevated power transmission hoisting device that effectively overcomes many drawbacks of traditional large-scale lifting equipment through innovative structural design. The device adopts a lightweight trolley-type structure equipped with traveling rollers, allowing for flexible movement in narrow spaces and on soft ground, completely solving the problem of large equipment damaging farmland crops. It is particularly suitable for operations in complex terrains such as fields and mountains. Its unique portal frame structure consists of a front top plate, telescopic beams, and a front pressure frame, which achieves rapid anchoring to the tower foundation piles via locking bolts, forming a stable hoisting support point. This ensures operational safety and significantly reduces site limitations caused by the equipment's weight. The built-in hoisting winch assembly can directly utilize the elevated structure as a load-bearing support, achieving a technological breakthrough in using miniaturized equipment to complete large-scale hoisting tasks, effectively reducing construction costs. This device is particularly suitable for the precise hoisting of small-volume, multi-batch materials, significantly improving operational efficiency and is not limited by road conditions, demonstrating excellent adaptability in remote areas. With a simple and reliable overall structure, it is far less difficult to operate than traditional cranes. It reduces the reliance on professional operators and eliminates safety hazards such as boom collisions, providing a new, economical, efficient, and environmentally friendly solution for elevated power transmission construction. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the working state of this utility model;

[0012] Figure 2 This is a front side view of the present invention. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0014] To address the problems of high costs, low efficiency, poor site adaptability, easy damage to farmland and crops, and safety hazards caused by the reliance on large lifting equipment in existing elevated power transmission construction technologies, this utility model provides an elevated power transmission hoisting device. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0015] Please see Figure 1 and Figure 2 An elevated power transmission hoisting device includes a traveling base, a hoisting winch assembly 1, a front top plate 2, a telescopic beam 3, a front pressure frame 4, and locking bolts 5.

[0016] The traveling base is equipped with traveling rollers. The traveling base is the frame of this device and has the function of roller movement. In this embodiment, specifically, the traveling base includes a base 6 and wheels 7 mounted on the base. The base is a flat plate, which is a rectangular planar frame plate formed by welding C-shaped steel. The wheels include an axle mounted on the base and wheels mounted on the axle, and are wheels located on the left and right sides of the base that rotate around the axle on the same axis.

[0017] The hoisting winch assembly is mounted on the traveling base. As a mature existing technology, the core structure of the hoisting winch assembly includes the following key components: an electric motor provides the original rotational power; a reduction gear converts the high-speed, low-torque output of the power source into the low-speed, high-torque required by the drum; the drum, as the core working component, is used to wind and store the wire rope, and its surface has rope grooves to ensure orderly rope arrangement; a brake acts directly on the high-speed shaft or drum to reliably stop and hold the load; a support frame or base carries all the above components and provides a mounting foundation; in addition, it usually includes a coupling connecting the power and reduction gear, bearings supporting the drum, wire rope pressure plates or wedges fixing the rope ends, and a rope arrangement device to ensure that the wire rope is neatly arranged on the drum, together forming a complete mechanical system for completing the winding and unwinding of the wire rope to lift or pull heavy objects. This hoisting winch assembly serves as the power output component for hoisting. It is mounted on the traveling base. With the traveling base reliably fixed to the side of the tower foundation pile 10 of the elevated tower, it has a reliable anchor point. The wire rope of the hoisting winch assembly can be used for hoisting materials below the tower, with the upper working point frame of the elevated tower as the fulcrum or with the fixed pulley hooked near the working point as the fulcrum.

[0018] The front top plate is fixed to the front of the traveling base and forms a vertical end face that abuts against the tower foundation pile. Telescopic beams are symmetrically installed on both sides of the upper part of the front top plate. A front pressure frame is installed at the front end of the telescopic beams. The front top plate, telescopic beams, and front pressure frame form a portal frame structure with an adjustable opening. Further, the upper part of the front top plate is symmetrically installed onto guide sleeves 8. The telescopic beams are installed in the guide sleeves and move axially under the action of the guide sleeves. The axis of the telescopic beams is perpendicular to the vertical end face of the front top plate. Positioning screw holes are evenly distributed axially on the telescopic beams. At least one of the positioning screw holes is threaded with a limiting screw 9, which is used to limit the opening of the portal frame structure. In this embodiment, the guide sleeve has a radial through hole, through which the limiting screw connects to the positioning screw hole of the telescopic beam. A handle is installed at the rear end of the telescopic beam. Locking bolts are installed on the front pressure frame and are used to clamp the tower foundation pile inside the opening of the portal frame structure.

[0019] The front top plate is made of rectangular flat steel plate, vertically installed and welded to the front end of the base, with the front face forming an end face that can abut against the tower foundation piles. Circular through holes are machined on the upper left and right sides of the front top plate, and guide sleeves are fixed in these through holes. The flanges of the guide sleeves are fixed to the front top plate with screws. The telescopic beam is a metal round tube, which is fitted into the guide sleeve as a guide rod, allowing the telescopic beam to move axially and horizontally forward and backward. A front pressure frame is fixed to the front end of the telescopic beam via a flange and bolts. The front pressure frame consists of two symmetrical long strips corresponding to the telescopic beam. When the limit screws are not in the limited state, the guide sleeve and the telescopic beam form not only an axial moving pair but also a rotating pair. Two locking bolts are installed at the lower part of the front pressure frame through threaded holes.

[0020] Before the device is anchored, the front top plate and the front pressure frame are brought as close as possible together, and their relative positions are fixed by limit screws. The rear end of the telescopic beam extends towards the rear of the device to form the push handle.

[0021] After the device moves close to the rectangular concrete tower foundation pile, the front end of the top plate abuts against the side of the tower foundation pile. The telescopic beam extends horizontally forward and spans across the tower foundation pile from above. The front pressure frame, through translation and rotation, eventually approaches the other side of the tower foundation pile. The portal frame structure is fixed by the engagement of the limit screws and positioning screw holes. Tightening the locking bolts causes the inner end of the locking bolts to press against the side of the tower foundation pile, forming a clamping effect of the portal frame structure on the tower foundation pile. This completes the anchoring of the device at the elevated foot. The hoisting winch assembly can then be used for material lifting via line laying and traction.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hoisting device for elevated power transmission lines, characterized in that: The system includes a traveling base, a hoisting winch assembly, a front top plate, a telescopic beam, a front pressure frame, and locking bolts. The traveling base is equipped with traveling rollers. The hoisting winch assembly is installed on the traveling base. The front top plate is fixed to the front of the traveling base and forms a vertical end face that abuts against the tower foundation pile. The telescopic beam is symmetrically installed on both sides of the upper part of the front top plate. The front pressure frame is installed at the front end of the telescopic beam. The front top plate, telescopic beam, and front pressure frame form a portal frame structure with an adjustable opening. The locking bolts are installed on the front pressure frame and are used to clamp the tower foundation pile inside the opening of the portal frame structure.

2. The elevated power transmission hoisting device according to claim 1, characterized in that: The upper part of the front top plate is symmetrically installed on the guide sleeve. The telescopic beam is installed in the guide sleeve and moves axially under the action of the guide sleeve. The axis of the telescopic beam is perpendicular to the vertical end face of the front top plate. Positioning screw holes are evenly distributed axially on the telescopic beam. At least one of the positioning screw holes is threaded with a limiting screw. The limiting screw is used to limit the opening of the portal frame structure.

3. The elevated power transmission hoisting device according to claim 2, characterized in that: The walking base includes a base and wheels mounted on the base.

4. The elevated power transmission hoisting device according to claim 3, characterized in that: The guide sleeve is provided with a radial through hole, and the limiting screw passes through the radial through hole and is connected to the positioning screw hole of the telescopic beam.

5. The elevated power transmission hoisting device according to claim 4, characterized in that: A handle is installed at the rear end of the telescopic beam.

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