Tensioning and fixing device for prestressed steel wire of electric pole

Abstract

The utility model discloses an electric pole prestressed steel wire tensioning and fixing device, and relates to the field of electric pole prestressed steel wire tensioning, the electric pole prestressed steel wire tensioning and fixing device comprises a fixed mounting base, the fixed mounting base can be arranged in a horizontal sliding mode, and the top end face of the fixed mounting base is connected with a lifting structure capable of being arranged in a lifting mode. A telescopic structure which is arranged in a telescopic mode is installed and connected to the lifting structure, a prestressed steel wire clamp used for clamping and fixing prestressed steel wires is installed and connected to one end of the telescopic structure, and the prestressed steel wire clamp is driven to move together by controlling the fixed installation base to move horizontally; and the prestressed steel wire clamped and fixed by the prestressed steel wire clamp is tensioned and straightened. The tensioning and fixing device is simple in structure and convenient to operate and control; most importantly, by means of the tensioning and fixing device, the wire rod prestressed steel wire can be tensioned and straightened, and therefore time is saved.

Description

Technical Field

[0001] This utility model relates to the field of tensioning prestressed steel wires on utility poles, specifically a tensioning and fixing device for prestressed steel wires on utility poles. Background Technology

[0002] Utility poles (electric poles) are crucial in power transmission lines, primarily used to support conductors and ensure stable power transmission. The design of the pole frame requires consideration of many factors, such as geographical location, climate conditions, and load capacity. In terms of materials, steel or concrete are typically used due to their high strength, corrosion resistance, and long service life. Electromagnetic compatibility (EMC) must also be considered during the design phase to prevent electromagnetic interference from affecting nearby communication equipment. During construction, the foundation must be stable; otherwise, the entire pole may become unstable, compromising power transmission safety.

[0003] To ensure the quality of utility poles, prestressed steel wires are typically installed in the steel reinforcement cage during the existing pole manufacturing process to increase the pole's stress resistance. The prestressed steel wires are usually transported to the pole manufacturing plant in coils. Before applying prestress, the coiled wires need to be straightened, cut to the required length, and then prestressed. To facilitate the initial straightening of the coiled prestressed steel wires, a simplified fastening device for tensioning and straightening the prestressed steel wires has been designed and improved. Utility Model Content

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A prestressed steel wire tensioning and fixing device for utility poles includes a fixed mounting base that can slide horizontally. A lifting structure that can be raised and lowered is mounted on the top surface of the fixed mounting base. A telescopic structure that can be extended and retracted is mounted on the lifting structure. A prestressed steel wire clamp for clamping and fixing the prestressed steel wire is mounted on one end of the telescopic structure. By controlling the horizontal movement of the fixed mounting base, the prestressed steel wire clamp moves together, thus tensioning and straightening the prestressed steel wire clamped and fixed by the clamp.

[0006] Preferably, the lifting structure includes a lifting hydraulic rod, the bottom end of which is connected to a flange, the lifting hydraulic rod is detachably connected to a fixed mounting base via the flange, the top end of which is detachably connected to a connector, and the connector is connected to a telescopic structure.

[0007] Preferably, the telescopic structure includes a hydraulic telescopic rod, and the outer shell of the hydraulic telescopic rod is detachably connected to the connector.

[0008] The output end of the hydraulic telescopic rod is connected to the prestressed steel wire clamp, and the hydraulic telescopic rod drives the prestressed steel wire clamp to move horizontally.

[0009] Preferably, a protective housing is connected to the fixed mounting base, and the lifting hydraulic rod is movably mounted inside the protective housing;

[0010] The protective shell has a through-hole with a movable groove, and the hydraulic telescopic rod can move up and down along the movable groove.

[0011] Preferably, the bottom two sides of the fixed mounting base are respectively connected to sliding guide seats, the sliding guide seats are provided with sliding guide rail grooves, the sliding guide seats are horizontally slidably arranged with the sliding guide rail through the sliding guide rail grooves, and the sliding guide rail is used to anchor to the ground.

[0012] Preferably, a hydraulic push rod is provided on one end of the fixed mounting base that can move horizontally along the sliding guide rail. One end of the hydraulic push rod is hinged to the sliding guide seat, and the other end of the hydraulic push rod is hinged to the ground.

[0013] The beneficial effects of this utility model are as follows: The purpose of this utility model is to provide a tensioning and fixing device for prestressed steel wire on utility poles. This tensioning and fixing device is used to tension and fix coiled prestressed steel wire that needs to be tensioned and straightened, and then the coiled prestressed steel wire is tensioned and straightened through this tensioning and fixing device. This tensioning and fixing device has a simple structure and is easy to operate and control; most importantly, it can also achieve tensioning and straightening of coiled prestressed steel wire, thereby saving time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure of a prestressed steel wire tensioning and fixing device for utility poles according to the present invention;

[0015] Figure 2 This is an exploded view of the connection structure of a prestressed steel wire tensioning and fixing device for utility poles according to this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the fixed installation base of the prestressed steel wire tensioning and fixing device for utility poles according to this utility model;

[0017] Figure 4 This is a schematic diagram of the lifting structure connection of a prestressed steel wire tensioning and fixing device for utility poles according to this utility model;

[0018] In the diagram, 1-fixed mounting base, 2-prestressed steel wire clamp, 3-lifting hydraulic rod, 4-hydraulic telescopic rod, 5-protective shell, 6-hydraulic push rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] like Figures 1 to 4 As shown, a prestressed steel wire tensioning and fixing device for utility poles is used to tension and fix coiled prestressed steel wires that need to be tensioned and straightened. The device includes a fixed mounting base 1, which is horizontally slidable. A lifting structure is mounted on the top surface of the fixed mounting base 1, and a telescopic structure is mounted on the lifting structure. One end of the telescopic structure is connected to a prestressed steel wire clamp 2 for clamping and fixing the prestressed steel wire. By controlling the horizontal movement of the fixed mounting base 1, the prestressed steel wire clamp 2 moves together, thus tensioning and straightening the prestressed steel wire clamped by the clamp 2.

[0022] In this embodiment, the tensioning and fixing device is installed at the designed position, and the fixed mounting base 1 of the tensioning and fixing device is movable; then, one end of the coiled prestressed steel wire that needs to be tensioned and straightened is clamped and fixed by the prestressed steel wire clamp 2 (existing technology, i.e., clamp for prestressed steel wire and steel strand); then, by controlling the horizontal movement of the fixed mounting base 1, the prestressed steel wire clamp 2 is moved together to tension and straighten the prestressed steel wire clamped and fixed by the prestressed steel wire clamp 2.

[0023] Example 2

[0024] Based on Embodiment 1, the lifting structure of this configuration includes a lifting hydraulic rod 3, the bottom end of which is connected to a flange, the lifting hydraulic rod 3 is detachably connected to the fixed mounting base 1 via the flange, and the top end of the lifting hydraulic rod 3 is detachably connected to a connector, which is connected to a telescopic structure.

[0025] Furthermore, the telescopic structure of this setup includes a hydraulic telescopic rod 4, the outer shell of which is detachably connected to the connector; the output end of the hydraulic telescopic rod 4 is connected to the prestressed steel wire clamp 2, and the prestressed steel wire clamp 2 is moved horizontally by the hydraulic telescopic rod 4.

[0026] Furthermore, the fixed mounting base 1 of this device is connected to a protective housing 5, and the lifting hydraulic rod 3 is movably mounted inside the protective housing 5; the protective housing 5 has a through-hole for movement, and the hydraulic telescopic rod 4 can move up and down along the through-hole.

[0027] In this embodiment, the protective outer shell 5 provides a certain degree of protection for the hydraulic telescopic rod 4 and the lifting hydraulic rod 3. At the same time, by controlling the lifting height adjustment of the lifting hydraulic rod 3 and the extension position of the hydraulic telescopic rod 4, the prestressed steel wire clamp 2 can be moved and adjusted to a suitable position, thereby facilitating the tensioning and straightening of the prestressed steel wire according to requirements.

[0028] Example 3

[0029] The fixed mounting base 1 has sliding guide seats connected to both sides of its bottom end. Each sliding guide seat has a sliding guide rail groove, allowing it to slide horizontally along the sliding guide rail. The sliding guide rail is used for anchoring to the ground. Simultaneously, a hydraulic push rod 6 is installed on one side of the fixed mounting base 1 that can move horizontally along the sliding guide rail. One end of the hydraulic push rod 6 is hinged to the sliding guide seat 1, and the other end is hinged to the ground.

[0030] In this embodiment, by controlling the hydraulic push rod 6, the fixed mounting base 1 is driven to move horizontally along the sliding guide rail, thereby driving the prestressed steel wire clamp 2 to move. The prestressed steel wire clamp 2 drives the coiled prestressed steel wire to move, thus tensioning and straightening the coiled prestressed steel wire. It should be noted that this tensioning and fixing device is used to clamp and fix one end of the coiled prestressed steel wire. In order to straighten the coiled prestressed steel wire, the coiled prestressed steel wire is first passed through a limiting channel at one end for limiting and guiding. Thus, when the tensioning and fixing device moves, the coiled prestressed steel wire is tensioned and straightened. Alternatively, the coiled prestressed steel wire can be cut into segments in advance according to measurements. Then, two such tensioning and fixing devices can be installed on the sliding guide rail. One tensioning and fixing device is used to clamp and fix one end of the cut coiled prestressed steel wire segment, and the other tensioning and fixing device is used to clamp and fix the other end of the cut coiled prestressed steel wire segment. By controlling the relative movement of the two tensioning and fixing devices, the cut coiled prestressed steel wire segment can be tensioned and straightened.

Claims

1. A device for tensioning and fixing prestressed steel wires on utility poles, characterized in that, The device includes a fixed mounting base that can slide horizontally. A lifting structure that can be raised and lowered is installed on the top surface of the fixed mounting base. A telescopic structure that can be extended and retracted is installed on the lifting structure. A prestressed steel wire clamp for clamping and fixing the prestressed steel wire is installed at one end of the telescopic structure. By controlling the horizontal movement of the fixed mounting base, the prestressed steel wire clamp is moved together, thereby tensioning and straightening the prestressed steel wire clamped and fixed by the prestressed steel wire clamp.

2. The prestressed steel wire tensioning and fixing device for utility poles according to claim 1, characterized in that, The lifting structure includes a lifting hydraulic rod, the bottom end of which is connected to a flange. The lifting hydraulic rod is detachably connected to a fixed mounting base via the flange. The top end of the lifting hydraulic rod is detachably connected to a connector, which is connected to a telescopic structure.

3. The prestressed steel wire tensioning and fixing device for utility poles according to claim 2, characterized in that, The telescopic structure includes a hydraulic telescopic rod, and the outer shell of the hydraulic telescopic rod is detachably connected to the connector. The output end of the hydraulic telescopic rod is connected to the prestressed steel wire clamp, and the hydraulic telescopic rod drives the prestressed steel wire clamp to move horizontally.

4. The prestressed steel wire tensioning and fixing device for utility poles according to claim 3, characterized in that, The fixed mounting base is connected to a protective housing, and the lifting hydraulic rod is movably and vertically arranged inside the protective housing. The protective shell has a through-hole with a movable groove, and the hydraulic telescopic rod can move up and down along the movable groove.

5. The prestressed steel wire tensioning and fixing device for utility poles according to claim 1, characterized in that, The bottom of the fixed mounting base is connected to two sliding guide seats on both sides. The sliding guide seats have sliding guide rail grooves. The sliding guide seats are horizontally slidable with the sliding guide rail through the sliding guide rail grooves, and the sliding guide rail is used to anchor to the ground.

6. The prestressed steel wire tensioning and fixing device for utility poles according to claim 5, characterized in that, A hydraulic push rod is provided on one end of the fixed mounting base that can move horizontally along the sliding guide rail. One end of the hydraulic push rod is hinged to the sliding guide seat, and the other end of the hydraulic push rod is hinged to the ground.

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