Modular connection node structure of assembly type high-voltage power transmission tower

Abstract

The utility model relates to the technical field of high-voltage power transmission towers, in particular to a modular connection node structure of an assembly type high-voltage power transmission tower, which comprises a main steel frame, reinforcing angle steel is sleeved on the outer surface of the main steel frame, and supporting angle steel is mounted on two sides of an inner cavity of the main steel frame. Supporting transverse plates are arranged on the inner sides of the top and the bottom of the supporting angle steel, connecting sliding plates are slidably inserted into the front sides of the supporting transverse plates, connecting transverse plates are welded to the front sides of the connecting sliding plates, and mounting angle steel is welded to the front sides of the connecting transverse plates and the rear sides of the supporting transverse plates. The reinforcing angle steel and the angle steel body are fixed to the surfaces of the main steel frames, the supporting transverse plates are inserted into the mounting insertion grooves, the first bolts penetrate through the mounting holes in the upper side and the lower side correspondingly and are screwed and fixed, the mounting insertion plate on the front side is inserted into the mounting insertion groove in the inner side of the opposite-angle main steel frame and is mounted and fixed, and therefore supporting between the two opposite-angle main steel frames is firmer; and the overall firmness of the tower is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage transmission tower technology, specifically a modular connection node structure for a prefabricated high-voltage transmission tower. Background Technology

[0002] High-voltage transmission towers are power facilities specifically designed to support transmission lines, lightning protection wires, and related accessories. They play a vital role in power lines. The main function of high-voltage transmission towers is to ensure the efficient and safe transmission of electrical energy. During the construction of prefabricated transmission towers, it is necessary to fix and assemble each connection node.

[0003] A search revealed that the announcement number CN215889537U, entitled "A Double-Leg Connection Angle Steel Node Structure for Transmission Towers," includes a main angle steel member and angle steel diagonal members. A node plate is provided on one side of the main angle steel member, and at least a portion of the node plate is parallel to one of the angle legs of the main angle steel member. Research and analysis revealed that although the load-bearing capacity at the node of the double-leg connection is significantly improved compared to the single-leg connection when using the same angle steel material and length, and is closer to axial stress than the single-leg connection, thus enhancing the compressive strength and stability of the diagonal members, the following defects still exist to some extent.

[0004] For example, the diagonal support of the tower cannot be reinforced. After assembly, the above-mentioned transmission tower connection node structure can only reinforce the two adjacent sides of the tower, but cannot reinforce the diagonal side. This results in poor diagonal support of the tower, which is prone to violent shaking in strong winds and other severe weather. The tower is not sturdy enough as a whole, and the length of the diagonal reinforcement plate cannot be adjusted, which makes it impractical and unable to be flexibly adjusted according to towers of different sizes. In order to solve the above technical problems, we have designed a modular connection node structure for prefabricated high-voltage transmission towers. Utility Model Content

[0005] The purpose of this utility model is to provide a modular connection node structure for prefabricated high-voltage transmission towers, which has the function of diagonal support and reinforcement of the tower, making the whole structure more robust and providing better support. The length of the diagonal reinforcement plate can be flexibly adjusted, making it suitable for towers of different sizes and improving practicality. This solves the problems of not being able to support and reinforce the diagonal of the tower, resulting in poor overall robustness and the inability to flexibly adjust the length of the diagonal reinforcement plate according to the tower size, thus improving practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular connection node structure for a prefabricated high-voltage transmission tower, comprising a main steel frame, a reinforcing angle steel sleeved on the outer surface of the main steel frame, supporting angle steel installed on both sides of the inner cavity of the main steel frame, supporting cross plates provided on the inner sides of the top and bottom of the supporting angle steel, a connecting slide plate slidably inserted into the front side of the supporting cross plate, a connecting cross plate welded to the front side of the connecting slide plate, mounting angle steel welded to the front side of the connecting cross plate and the rear side of the supporting cross plate, mounting inserts welded to the opposite sides of the upper and lower mounting angle steels, mounting holes provided on the surfaces of the mounting inserts, the main steel frame, the reinforcing angle steel and the supporting angle steel, a first bolt penetrating through the inner cavity of the mounting hole, and a second bolt penetrating through the surfaces of the supporting cross plate and the connecting slide plate.

[0007] Preferably, the supporting angle steel includes an angle steel body, with mounting slots provided on the inner sides of the top and bottom of the angle steel body, and a limiting block welded to the outer side of the angle steel body.

[0008] Preferably, the number of limiting blocks is several, and they are arranged at equal intervals, and the angle steel body is made of galvanized steel plate.

[0009] Preferably, a sliding slot is provided on the front side of the supporting cross plate, and a first positioning hole is provided at the top and bottom of the inner cavity of the sliding slot.

[0010] Preferably, a second positioning hole is provided on both sides of the top of the connecting slide plate, and the number of the second positioning holes is several and they are arranged at equal intervals.

[0011] Preferably, the main steel frame, reinforcing angle steel, supporting angle steel, supporting cross plate, connecting slide plate, connecting cross plate and mounting angle steel are all made of galvanized steel plate, and the inner side of the first bolt passes through the main steel frame, reinforcing angle steel, supporting angle steel and mounting plate in sequence.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] The angle steel and angle steel body are fixed to the surface of the main steel frame. The support cross plate is inserted into the installation slot. The first bolt passes through the installation holes on the upper and lower sides and is tightened. The front installation plate is inserted into the installation slot on the inside of the diagonal main steel frame and installed and fixed. In this way, the support between the two diagonal main steel frames is more solid, which greatly improves the overall stability of the tower.

[0014] Pull the connecting plate outward to insert the front mounting plate into the mounting slot on the surface of the diagonal angle steel body, and insert the second bolt to limit and fix the connecting slide plate. In this way, the extension length of the connecting slide plate can be flexibly adjusted according to the change of the distance between the two diagonal main steel frames, so as to meet the use of towers of different sizes and improve practicality. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the structure of this utility model;

[0016] Figure 2 This is a top axonometric view of the main steel frame and supporting angle steel of this utility model;

[0017] Figure 3 This is an exploded view of a partial structure of the present invention;

[0018] Figure 4 This is an exploded view of the main steel frame, reinforcing angle steel, and supporting angle steel of this utility model;

[0019] Figure 5 This is the main axonometric view of the supporting horizontal plate of this utility model.

[0020] In the diagram: 1. Main steel frame; 2. Reinforcing angle steel; 3. First bolt; 4. Supporting angle steel; 5. Second bolt; 6. Second positioning hole; 7. Mounting angle steel; 8. Mounting insert plate; 9. Mounting hole; 10. Connecting slide plate; 11. Supporting horizontal plate; 12. Mounting slot; 13. Limiting block; 14. Angle steel body; 15. First positioning hole; 16. Sliding slot; 17. Connecting horizontal plate. Detailed Implementation

[0021] Please see Figures 1-5 A modular connection node structure for a prefabricated high-voltage transmission tower includes a main steel frame 1. Reinforcing angle steel 2 is fitted onto the outer surface of the main steel frame 1. The reinforcing angle steel 2 protects the outer surface of the connection node of the main steel frame 1, preventing damage to the main steel frame 1 during the tightening of the first bolt 3. Supporting angle steel 4 is installed on both sides of the inner cavity of the main steel frame 1. Supporting horizontal plates 11 are installed on the inner sides of the top and bottom of the supporting angle steel 4. A connecting slide plate 10 is slidably inserted into the front side of the supporting horizontal plate 11. A connecting horizontal plate 17 is welded to the front side of the connecting slide plate 10. Angle steel 7 is welded to the front side of the connecting plate 17 and the rear side of the supporting plate 11. By setting the angle steel 7, the angle steel 7 can fit against the inner wall of the main steel frame 1 after the mounting plate 8 is inserted, increasing the thickness of the connection node. An mounting plate 8 is welded to the opposite side of the upper and lower angle steel 7. The surfaces of the mounting plate 8, the main steel frame 1, the reinforcing angle steel 2 and the supporting angle steel 4 are all provided with mounting holes 9. The inner cavity of the mounting hole 9 is through which the first bolt 3 is installed. The surfaces of the supporting plate 11 and the connecting slide plate 10 are through which the second bolt 5 is installed.

[0022] Please see Figure 2The supporting angle steel 4 includes an angle steel body 14. The inner sides of the top and bottom of the angle steel body 14 are provided with mounting slots 12. The outer side of the angle steel body 14 is welded with a limiting block 13. By setting the limiting block 13, the side of the angle steel body 14 can be made to fit with the main steel frame 1 when the angle steel body 14 is installed, thereby improving the outward bending resistance of the angle steel body 14.

[0023] Please see Figure 1 and Figure 2 The number of limit blocks 13 is several, and they are arranged at equal intervals. The angle steel body 14 is made of galvanized steel plate.

[0024] Please see Figure 5 A sliding slot 16 is provided on the front side of the support plate 11. By providing the sliding slot 16, the sliding plate 10 can be easily inserted into the interior of the support plate 11. The top and bottom of the inner cavity of the sliding slot 16 are provided with first positioning holes 15. By providing the first positioning holes 15, the second bolt 5 can be easily passed through the support plate 11.

[0025] Please see Figure 1 The top of the connecting slide plate 10 is provided with two second positioning holes 6 on both sides. There are several second positioning holes 6, which are arranged at equal intervals. The connecting slide plate 10, the supporting horizontal plate 11 and the connecting horizontal plate 17 are all made of Q355B steel.

[0026] Please see Figure 1 The main steel frame 1, reinforcing angle steel 2, supporting angle steel 4, supporting horizontal plate 11, connecting slide plate 10, connecting horizontal plate 17 and mounting angle steel 7 are all made of galvanized steel plate. The inner side of the first bolt 3 passes through the main steel frame 1, reinforcing angle steel 2, supporting angle steel 4 and mounting plate 8 in sequence.

[0027] In use, the reinforcing angle steel 2 and the angle steel body 14 are respectively attached to the outer and inner sides of the main steel frame 1. Then, the first bolt 3 is passed through the middle mounting hole 9 and tightened to fix the reinforcing angle steel 2 and the angle steel body 14 to the surface of the main steel frame 1. Subsequently, the support cross plate 11 is inserted into the mounting slots 12 on the upper and lower sides respectively, and the first bolt 3 is passed through the mounting holes 9 on the upper and lower sides respectively and tightened to fix it. The front mounting plate 8 is inserted into the mounting slot 12 on the inner side of the diagonal main steel frame 1 through the above installation operation and fixed by the first bolt 3. In this way, the two diagonal main steel frames 1 are supported. More robust, greatly improving the overall stability of the tower. When the tower size is different, the distance between the two diagonal main steel frames 1 changes accordingly. When the diagonal distance increases, the second bolt 5 is unscrewed and the connecting horizontal plate 17 is pulled outward. When the front mounting plate 8 can be inserted into the mounting slot 12 on the surface of the diagonal angle steel body 14, the second bolt 5 is inserted and tightened to limit and fix the connecting slide plate 10. In this way, the extension length of the connecting slide plate 10 can be flexibly adjusted according to the change of the distance between the two diagonal main steel frames 1, which meets the needs of towers of different sizes and improves practicality.

[0028] In summary, the modular connection node structure of this prefabricated high-voltage transmission tower, through the coordinated use of the main steel frame 1, reinforcing angle steel 2, supporting angle steel 4, mounting angle steel 7, mounting insert plate 8, mounting hole 9, connecting slide plate 10, supporting horizontal plate 11, and connecting horizontal plate 17, solves the problems of the inability to support and reinforce the diagonal of the tower, poor overall stability, inability to flexibly adjust the length of the diagonal reinforcement plate according to the tower size, and poor practicality.

Claims

1. A modular connection node structure for a prefabricated high-voltage transmission tower, comprising a main steel frame (1), characterized in that: The outer surface of the main steel frame (1) is fitted with reinforcing angle steel (2). Supporting angle steel (4) is installed on both sides of the inner cavity of the main steel frame (1). Supporting horizontal plates (11) are provided on the inner sides of the top and bottom of the supporting angle steel (4). A connecting slide plate (10) is slidably inserted into the front side of the supporting horizontal plate (11). A connecting horizontal plate (17) is welded to the front side of the connecting slide plate (10). An installation angle steel (7) is welded to the front side of the connecting horizontal plate (17) and the rear side of the supporting horizontal plate (11). An installation insert plate (8) is welded to the opposite side of the upper and lower installation angle steels (7). An installation hole (9) is opened on the surface of the installation insert plate (8), the main steel frame (1), the reinforcing angle steel (2) and the supporting angle steel (4). A first bolt (3) is installed through the inner cavity of the installation hole (9). A second bolt (5) is installed through the surface of the supporting horizontal plate (11) and the connecting slide plate (10).

2. The modular connection node structure of a prefabricated high-voltage transmission tower according to claim 1, characterized in that: The supporting angle steel (4) includes an angle steel body (14), and the inner sides of the top and bottom of the angle steel body (14) are provided with mounting slots (12), and the outer side of the angle steel body (14) is welded with a limiting block (13).

3. The modular connection node structure of a prefabricated high-voltage transmission tower according to claim 2, characterized in that: The number of the limiting blocks (13) is several and they are arranged at equal intervals. The angle steel body (14) is made of galvanized steel plate.

4. The modular connection node structure of a prefabricated high-voltage transmission tower according to claim 1, characterized in that: The front side of the support plate (11) is provided with a sliding slot (16), and the top and bottom of the inner cavity of the sliding slot (16) are provided with first positioning holes (15).

5. The modular connection node structure of a prefabricated high-voltage transmission tower according to claim 1, characterized in that: The connecting slide plate (10) has a second positioning hole (6) on both sides of its top. The number of the second positioning holes (6) is several and they are arranged at equal intervals.

6. The modular connection node structure of a prefabricated high-voltage transmission tower according to claim 1, characterized in that: The main steel frame (1), reinforcing angle steel (2), supporting angle steel (4), supporting horizontal plate (11), connecting slide plate (10), connecting horizontal plate (17) and mounting angle steel (7) are all made of galvanized steel plate. The inner side of the first bolt (3) passes through the main steel frame (1), reinforcing angle steel (2), supporting angle steel (4) and mounting insert plate (8) in sequence.

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