A high-altitude 220kV power transmission line special-shaped tower

Abstract

The utility model discloses a high altitude 220kV transmission line special-shaped pole tower, including the tower body, and set up the thread stand, the ground wire support of tower body top, be equipped with the strengthening mechanism at the tower body of being equipped with the thread stand, and strengthening mechanism coaxial is equipped with in the tower body inside, and is fixedly connected the tower body through the strengthening plate, thread stand, the strengthening mechanism includes lower horizontal pole support, upper horizontal pole support, the inclined pull rod, lower horizontal pole support is horizontally equipped with on the tower body of thread stand bottom, upper horizontal pole support is horizontally equipped with on the tower body of thread stand top, and the inclined pull rod is fixed between lower horizontal pole support and upper horizontal pole support with diagonal shape. The utility model improves on the basis of existing special-shaped pole tower under the condition of guaranteeing the tower body bearing and the bending resistance performance, improves the iron tower's resistance and bearing adaptive capacity through the adjustment thread stand, the ground wire support and the connecting installation position of tower body, and sets up the strengthening mechanism in the connecting portion, effectively guarantees tower support stability and use safety.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission technology, and in particular relates to a special-shaped tower for a 220kV transmission line at high altitude. Background Technology

[0002] Transmission towers are crucial components supporting power transmission lines, bearing significant responsibility. To enhance stability, quadrilateral cross-section towers are typically used to ensure even pressure distribution at the four corners. In high-altitude areas, transmission towers must withstand varying seasonal weather conditions and strong winds. Severe weather can cause power lines to sway, leading to swaying of the crossarm (line support 2) and the tower itself. However, the lack of auxiliary mechanisms at the connection between the crossarm and the tower severely tests the load-bearing capacity of this connection. Over time, this increases the risk of deformation and bending at the connection, posing a safety hazard. Therefore, developing a new type of non-standard transmission line tower to address these existing problems is key. Utility Model Content

[0003] The present invention provides a special-shaped tower for a 220kV transmission line at high altitude.

[0004] This utility model is achieved through the following technical solution: it includes a tower body, and a wire-lifting frame and a ground wire support set on the top of the tower body. A reinforcing mechanism is provided at the tower body where the wire-lifting frame is provided, and the reinforcing mechanism is coaxially set inside the tower body and fixedly connected to the tower body and the wire-lifting frame by a reinforcing plate. The reinforcing mechanism includes a lower horizontal frame, an upper horizontal frame, and a diagonal tie rod. The lower horizontal frame is horizontally set on the tower body at the bottom of the wire-lifting frame, the upper horizontal frame is horizontally set on the tower body at the top of the wire-lifting frame, and the diagonal tie rod is fixedly set diagonally between the lower horizontal frame and the upper horizontal frame.

[0005] The beneficial effects of this utility model are: 1) While ensuring the load-bearing and bending resistance of the tower body, improvements are made to the existing irregular tower structure by adjusting the connection and installation positions of the cable tray, ground wire support and tower body, and setting a reinforcing mechanism at the connection part to improve the tower's resistance and load-bearing adaptability.

[0006] 2) The structure is simple and compact, and the force transmission is clear. It can eliminate most of the force generated by shaking or vibration, relieve the load pressure, make the overall structure more stable and reliable, enhance the stability of the power transmission line, and effectively ensure the stability and safety of the tower. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2To enhance the structural diagram of the mechanism;

[0009] Figure 3 This is a structural diagram of the lower or upper horizontal strut and the tower body.

[0010] Figure 4 This is a schematic diagram of the horizontal bar structure;

[0011] Figure 5 This is a schematic diagram of the auxiliary rod.

[0012] The numbers in the diagram are: 1~Tower body, 2~Wire lifting frame, 3~Ground wire support, 4~Reinforcing mechanism, 5~Lower horizontal bar frame, 6~Upper horizontal bar frame, 7~Horizontal bar, 8~Diagonal tie rod, 9~Reinforcing plate, 10~Auxiliary bar, 11~Straight plate. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the specific embodiments are described in detail below with reference to the accompanying drawings.

[0014] like Figures 1-5 The high-altitude 220kV transmission line tower shown includes a tower body 1, and a wire-lifting frame 2 and a ground wire support 3 installed on the top of the tower body 1. The wire-lifting frame 2 and the ground wire support 3 are conveniently and quickly adjusted on the top of the tower body 1. A reinforcing mechanism 4 is provided at the location of the wire-lifting frame 2 on the tower body 1, and the reinforcing mechanism 4 is coaxially installed inside the tower body 1 and fixedly connected to the tower body 1 and the wire-lifting frame 2 by a reinforcing plate 9. The reinforcing mechanism 4 includes a lower horizontal pole frame 5, an upper horizontal pole frame 6, and a diagonal tie rod 8. The lower horizontal pole frame 5 is horizontally installed on the tower body 1 at the bottom of the wire-lifting frame 2, and the upper horizontal pole frame 6 is horizontally installed on the tower body 1 at the top of the wire-lifting frame 2. The diagonal tie rod 8 is fixed diagonally between the lower horizontal pole frame 5 and the upper horizontal pole frame 6. The lower horizontal pole frame 5 and the upper horizontal pole frame 6 enhance the horizontal strength of the tower body 1, and the diagonal tie rod 8 enhances the vertical strength of the tower body 1, improving the tensile strength of the connection between the tower body 1 and the wire-lifting frame 2.

[0015] The lower horizontal support 5 and the upper horizontal support 6 each include two horizontal bars 7, which are connected and combined to form an X-shaped structure.

[0016] The reinforcing plate 9 is L-shaped and fixed to the ends of each horizontal bar 7 of the lower horizontal bar 5 and the upper horizontal bar 6. The reinforcing plate 9 is welded to the ends of each horizontal bar 7, forming an arrowhead-shaped connection between the horizontal bar 7 and the reinforcing plate 9, ensuring that the ends of the horizontal bars 7 can be connected and fixed to the tower body 1. The reinforcing plate 9 is then bolted to the connecting plate provided with the tower body 1, thereby fixing the lower horizontal bar 5, the upper horizontal bar 6, and the diagonal brace 8 to the tower body 1. Since each connecting part of the tower body 1 is equipped with a connecting plate, the reinforcing plate 9 and its corresponding connecting plate can share bolts for connection and fixation. When the cable tray 2 and / or the ground wire bracket 3 are subjected to the tension of the transmission line, the force is transmitted to the lower horizontal bar 5, the upper horizontal bar 6, and the diagonal brace 8, and then downwards to the tower body 1, thus sharing the force on the connection part with the tower body 1 and reducing the tension.

[0017] A downward auxiliary rods 10 are respectively set at the four corners of the lower horizontal frame 5. The lower end of each auxiliary rod 10 is fixedly connected to the tower body 1, and the auxiliary rods 10 are set diagonally. A straight plate 11 with an L-shaped structure is welded to the upper end of the auxiliary rod 10. The straight plate 11 is bolted to the connecting plate on the tower body 1. A reinforcing plate 9 is welded to the lower end to connect the tower body 1, so as to transfer the force downward to other parts of the tower body 1, thereby dissipating the tension and avoiding the tension from being concentrated at the connection between the wire lifting frame 2 and the tower body 1, thus reducing the tension.

[0018] The ground wire bracket 3 is located at the connection between the wire lifting frame 2 and the tower body 1, and is tilted upwards, so that the connection between the ground wire bracket 3 and the wire lifting frame 2 forms a V-shaped structure. The included angle β between the ground wire bracket 3 and the wire lifting frame 2 is not less than 50 degrees, and the height difference between their ends is not less than 2.5 meters, ensuring a safe distance for wire erection.

[0019] The auxiliary rod 10 is made of angle steel, round steel or round steel pipe.

[0020] The materials of the lower horizontal support 5, the upper horizontal support 6, and the diagonal tie rod 8 are angle steel, round steel, or round steel pipe.

Claims

1. A special-shaped tower for a 220kV transmission line at high altitude, comprising a tower body (1), and a wire-laying frame (2) and a ground wire support (3) installed on the top of the tower body (1), characterized in that: A reinforcing mechanism (4) is provided at the tower body (1) where the lifting frame (2) is provided, and the reinforcing mechanism (4) is coaxially located inside the tower body (1) and is fixedly connected to the tower body (1) and the lifting frame (2) by a reinforcing plate (9). The reinforcing mechanism (4) includes a lower horizontal bar (5), an upper horizontal bar (6), and a diagonal brace (8). The lower horizontal bar (5) is horizontally located on the tower body (1) at the bottom of the lifting frame (2), the upper horizontal bar (6) is horizontally located on the tower body (1) at the top of the lifting frame (2), and the diagonal brace (8) is fixedly located diagonally between the lower horizontal bar (5) and the upper horizontal bar (6).

2. The special-shaped tower for high-altitude 220kV transmission lines according to claim 1, characterized in that: The lower horizontal bar frame (5) and the upper horizontal bar frame (6) each include two horizontal bars (7), and the two horizontal bars (7) are connected and combined to form an X-shaped structure.

3. The special-shaped tower for high-altitude 220kV transmission lines according to claim 1, characterized in that: The reinforcing plate (9) is arranged in an L-shaped structure and is fixed to the ends of the horizontal rods (7) of the lower horizontal rod frame (5) and the upper horizontal rod frame (6), so that the horizontal rods (7) and the reinforcing plate (9) are connected and combined in an arrow-shaped structure.

4. The special-shaped tower for high-altitude 220kV transmission lines according to claim 1, characterized in that: A downward auxiliary rod (10) is set at each of the four corners of the lower horizontal rod frame (5). The lower end of each auxiliary rod (10) is fixedly connected to the tower body (1), and the auxiliary rod (10) is set diagonally.

5. The special-shaped tower for high-altitude 220kV transmission lines according to claim 1, characterized in that: The ground wire bracket (3) is located on the connection between the wire lifting frame (2) and the tower body (1) and is tilted upwards, so that the ground wire bracket (3) and the wire lifting frame (2) are connected in a V-shaped structure, and the included angle β between the ground wire bracket (3) and the wire lifting frame (2) is not less than 50 degrees, and the height difference between their ends is not less than 2.5 meters.

6. The special-shaped tower for high-altitude 220kV transmission lines according to claim 4, characterized in that: The auxiliary rod (10) is made of angle steel, round steel or round steel pipe. A straight plate (11) with an L-shaped structure is fixedly installed at the upper end of the auxiliary rod (10), and a reinforcing plate (9) is fixedly installed at the lower end.

7. The special-shaped tower for high-altitude 220kV transmission lines according to claim 1 or 2, characterized in that: The materials of the lower horizontal bar (5), upper horizontal bar (6), and diagonal brace (8) are angle steel, round steel, or round steel pipe.

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