Assembly type ground anchor for cableway of power transmission line

Abstract

The utility model discloses a power transmission line cableway assembly type ground anchor in the field of power transmission line cableway construction, the power transmission line cableway assembly type ground anchor comprises a top plate, a bottom plate and a base, the base comprises two side plates arranged in parallel, the upper edges and the lower edges of the two side plates are bent to form horizontal wing plates, the side plates are connected between the top plate and the bottom plate through the wing plates by adopting bolts, and the top plate is connected with the bottom plate through bolts. A reinforcing body is arranged between the two parallel side plates, the reinforcing body is connected between the top plate and the bottom plate through bolts, and a pull ring is arranged on the top plate. According to the scheme, the ground anchor is divided into a plurality of small modules (namely the top plate, the bottom plate, the side plates and the like) to be transported, compared with the prior art, the space occupancy rate in the transportation process is reduced, unnecessary materials existing in a single-piece structure are avoided, the weight of the ground anchor can be reduced, and the transportation difficulty is lowered. The ground anchor is assembled after reaching a cableway mounting point, and all the small modules are connected by adopting standard bolts with unified specifications, so that the ground anchor after being assembled has enough strength and stability.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission line cableway construction, and specifically relates to a prefabricated ground anchor for power transmission line cableways. Background Technology

[0002] The Tibetan region is vast, with complex terrain and geology, high altitude, and long winters, posing significant challenges to the construction of high-voltage power transmission lines. Material transportation, in particular, is a major concern; traditional methods are ill-suited to the complex terrain and climate. Cableway transportation, with its unique advantages, has become key to solving this problem. Cableway transportation is not limited by terrain or climate, and can maintain stable transport capacity even in winter.

[0003] However, the cableway transportation model also presents significant challenges in transporting construction materials for power transmission lines in Tibetan areas. The transportation and assembly of various components are crucial during cableway erection and installation. This is especially true in high-altitude, thin-air regions like the Qinghai-Tibet Plateau, where carrying heavy components uphill is extremely difficult. Therefore, the design of cableway components should minimize the weight of individual parts to facilitate manual transport and assembly. Ground anchors, as a vital component of power transmission line cableways, are of paramount importance for their stability and reliability. However, ordinary ground anchors are typically welded or integrally molded into single-piece structures before leaving the factory, resulting in significant overall weight, large space requirements, and difficult transportation. Utility Model Content

[0004] The present invention aims to provide a prefabricated ground anchor for power transmission line cableways, in order to solve the problem of transportation difficulties in the construction of high-voltage power transmission lines in Tibetan areas due to the large overall weight of traditional ground anchors as single-piece structures.

[0005] This solution includes a prefabricated ground anchor for a power transmission line cableway, comprising a top plate, a bottom plate, and a base. The base includes two parallel side plates, the upper and lower edges of which are bent to form horizontal wing plates. The side plates are bolted to the top plate and the bottom plate via the wing plates. A reinforcing body is provided between the two parallel side plates, and the reinforcing body is bolted to the top plate and the bottom plate. A pull ring is provided on the top plate.

[0006] This solution involves transporting the ground anchor in multiple small modules (top plate, bottom plate, side plates, etc.), reducing space occupancy and transportation difficulty compared to existing technologies. Assembly is then performed at the cableway installation point, with standardized interfaces connecting the modules using uniformly sized bolts to ensure sufficient strength and stability of the assembled anchor. Based on the principles and effects of modular disassembly and standardized interface connections, this solution allows the anchor to retain only essential connection and stability structures, avoiding unnecessary materials in individual components, thus reducing weight and further simplifying transportation.

[0007] In addition, when subjected to the tension of power transmission line cables, the reinforcement effectively disperses and resists these forces, preventing the ground anchor from easily deforming or being damaged. The small, modular design also facilitates later maintenance and replacement of damaged parts.

[0008] Furthermore, the top plate is composed of three connecting plates spliced ​​together, with downward connecting strips between adjacent connecting plates, and the connecting strips are connected by bolts. The three connecting plates are tightly connected by connecting strips and bolts to form a more robust overall structure. The setting of connecting strips increases the rigidity of the top plate in both the lateral and longitudinal directions, enabling it to better resist the tension from the power transmission line cableway and other external loads.

[0009] Furthermore, the ground anchor is trapezoidal in shape, with the bottom plate shorter than the top plate, and the bottom plate located directly below the middle connecting plate. The trapezoidal structure of the ground anchor allows for better distribution and resistance to external loads, especially when the power transmission line cableway generates tension; the trapezoidal structure can more effectively transfer the force to the ground, increasing the anchor's pull-out resistance. The bottom plate's location directly below the middle connecting plate makes the anchor's center of gravity more stable, reducing the risk of tilting or overturning due to uneven stress.

[0010] Furthermore, there are two reinforcing bodies, arranged mirror-symmetrically, connected or not connected. Each reinforcing body has a hollow trapezoidal structure with an open top. This hollow structure allows for significant weight reduction while maintaining sufficient strength, lowering material costs and facilitating transportation and installation of the anchor. During on-site assembly, the top plate is installed last. The open top allows soil to more easily enter and fill the internal space of the reinforcing body when buried. This increases the contact area and friction between the soil and the reinforcing body, thereby improving the anchor's grip and pull-out resistance.

[0011] Furthermore, the top edge of the reinforcing body is bent outward to form a connecting edge, which is bolted to the top plate. The bottom of the reinforcing body is also bolted to the bottom plate. The design of the connecting edge increases the contact area between the reinforcing body and the top plate, making the bolted connection more robust and reliable.

[0012] Furthermore, the top edge of the reinforcing body is provided with a clearance opening for the connecting strip to be inserted. This clearance opening design allows the connecting strip of the top plate to be directly inserted into the top of the reinforcing body, achieving a seamless connection between the top plate, the reinforcing body, and the bottom plate. This connection method not only enhances the overall structural strength of the ground anchor but also improves the synergistic effect between the reinforcing body, the connecting strip, and the connecting plate, enabling the ground anchor to work more stably under load.

[0013] Furthermore, the reinforcing body includes two mirror-symmetrical right-angled trapezoidal reinforcing plates connected by angle steel. The connection of the two mirror-symmetrical reinforcing plates by angle steel forms a more stable frame structure, further improving the overall strength and stability of the ground anchor. The right-angled trapezoidal reinforcing plates have excellent load-bearing capacity and deformation resistance, effectively dispersing and resisting external loads.

[0014] Furthermore, the pull ring is located on top of the connecting plate in the middle.

[0015] Furthermore, the bolt holes corresponding to the bolted connections are designed as elliptical holes. This elliptical hole design allows for a certain tolerance range during installation, making it easier for the bolts to pass through the holes and be tightened. This reduces installation difficulty, improves construction efficiency, and reduces the risk of damage due to improper installation. Attached Figure Description

[0016] Figure 1 This is a top view of a prefabricated ground anchor for a power transmission line cableway according to this utility model;

[0017] Figure 2 This is an exploded view of a prefabricated ground anchor for a power transmission line cableway according to this utility model.

[0018] Figure 3 This is a bottom view of a prefabricated ground anchor for a power transmission line cableway according to this utility model;

[0019] Figure 4 This is a schematic diagram of the reinforcing body in a prefabricated ground anchor for a power transmission line cableway according to this utility model. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: connecting plate 1, connecting strip 101, pull ring 2, side plate 3, wing plate 301, bottom plate 4, reinforcing plate 5, angle steel 501, connecting edge 502, and clearance opening 503.

[0022] The basic implementation examples are as follows: Figures 1 to 4 As shown: A prefabricated ground anchor for a power transmission line cableway includes a top plate, a bottom plate 4 and a base, wherein the top plate is longer than the bottom plate 4.

[0023] Combination Figure 2 As shown, the top plate is composed of three connecting plates 1 spliced ​​together. A downward connecting strip 101 is provided between two adjacent connecting plates 1. The connecting strips 101 are connected by bolts. A pull ring 2 is welded to the top of the middle connecting plate 1. The bottom plate 4 is located directly below the middle connecting plate 1.

[0024] The base includes two parallel trapezoidal side plates 3. The upper and lower edges of the two side plates 3 are bent to form horizontal wing plates 301. The side plates 3 are bolted to the top plate and the bottom plate 4 through the wing plates 301. The long side of the side plate 3 is connected to the top plate. A reinforcing body is provided between the two parallel side plates 3.

[0025] There are two reinforcing bodies arranged in a mirror-symmetrical manner. Each reinforcing body comprises two mirror-symmetrical right-angled trapezoidal reinforcing plates 5, connected by angle steel 501. The two reinforcing bodies are close together but do not require connection, forming a hollow isosceles trapezoidal structure. The top edge of each reinforcing body bends outward to form a connecting edge 502, and the bottom edge bends inward to also form a connecting edge 502. The top connecting edge 502 is bolted to the top plate, and the bottom connecting edge 502 is bolted to the bottom plate 4. The top edge of each reinforcing body has a clearance opening 503 for the connecting strip 101 to be inserted.

[0026] In this design, the bolt holes at the bolt connections are all designed as elliptical holes. The disassembled plates can preferably be made of lightweight and high-strength materials such as aluminum alloy or titanium alloy, further reducing the weight of the anchor.

[0027] Specific installation sequence: (1) Dig the ground anchor pit and ropeway; (2) Transport the ground anchor components to the ground anchor installation position on the mountain by manpower; (3) Connect the reinforcing plate 5 and side plate 3 to the bottom plate 4; (4) Put the connected reinforcing plate 5, side plate 3 and bottom plate 4 into the pit and backfill the soil; (5) Connect the side plate 3 and reinforcing plate 5 to the top plate; (6) Connect the steel wire rope to the pull ring 2 and continue backfilling the soil until the top plate is buried.

Claims

1. A prefabricated ground anchor for cableways of power transmission lines, characterized in that: It includes a top plate, a bottom plate, and a base. The base includes two parallel side plates. The upper and lower edges of the two side plates are bent to form horizontal wing plates. The side plates are bolted to the top plate and the bottom plate through the wing plates. A reinforcing body is provided between the two parallel side plates. The reinforcing body is bolted to the top plate and the bottom plate. A pull ring is provided on the top plate.

2. The prefabricated ground anchor for a power transmission line cableway according to claim 1, characterized in that: The top plate is composed of three connecting plates spliced ​​together, with downward connecting strips between adjacent connecting plates, and the connecting strips are connected by bolts.

3. The prefabricated ground anchor for a power transmission line cableway according to claim 2, characterized in that: The ground anchor is trapezoidal in shape, with the bottom plate shorter than the top plate, and the bottom plate is located directly below the connecting plate in the middle.

4. The prefabricated ground anchor for a power transmission line cableway according to claim 3, characterized in that: There are two reinforcing bodies, which are arranged in a mirror image symmetrically and may or may not be connected. Each reinforcing body is a hollow trapezoidal structure with an open top.

5. A prefabricated ground anchor for a power transmission line cableway according to claim 4, characterized in that: The top edge of the reinforcing body is bent outward to form a connecting edge, which is connected to the top plate by bolts. The bottom of the reinforcing body is also connected to the bottom plate by bolts.

6. A prefabricated ground anchor for a power transmission line cableway according to claim 5, characterized in that: The top edge of the reinforcing body is provided with a clearance opening for the connecting strip to be inserted.

7. A prefabricated ground anchor for a power transmission line cableway according to claim 6, characterized in that: The reinforcing body includes two mirror-symmetrical right-angled trapezoidal reinforcing plates, which are connected by angle steel.

8. A prefabricated ground anchor for a power transmission line cableway according to claim 6, characterized in that: The pull ring is located at the top of the connecting plate in the middle.

9. A prefabricated ground anchor for a power transmission line cableway according to claim 7, characterized in that: The bolt holes corresponding to the bolt connections are set as elliptical holes.

Images