Box-type cross arm for high-voltage terminal tower

Abstract

The utility model discloses a box-type cross arm for a high-voltage terminal tower, and relates to the technical field of high-voltage terminal towers. The cross arm mechanism comprises a first mounting ring and a second mounting ring, cross arm bodies are mounted on the outer sides of the first mounting ring and the second mounting ring, connecting plates and fixing plates which are symmetrically distributed are mounted on the outer sides of the two cross arm bodies respectively, first screw rods which are symmetrically distributed are fixedly arranged at the top ends of the fixing plates, and second screw rods which are symmetrically distributed are fixedly arranged at the top ends of the first screw rods. The outer side of the first screw rod is sleeved with a first nut in a threaded mode, and a square groove is formed in the connecting plate; the arc-shaped insertion blocks, the connecting grooves, the fixing plates, the connecting plates, the bolts and other structures are arranged to be matched with one another, when the cross arm body is installed, operation is easy, construction efficiency is improved, construction difficulty and cost are reduced, stability can be enhanced through connection between the connecting plates and the fixing plates, it is ensured that wires are firmly fixed, drifting and vibration are reduced, and the service life of the cross arm body is prolonged. And the reliability of the whole power transmission system is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage terminal tower technology, specifically a box-type crossarm for high-voltage terminal towers. Background Technology

[0002] High-voltage terminal towers are structures used at the ends of power transmission lines, responsible for connecting and disconnecting high-voltage current to ensure the safety and stability of the transmission line. Box-type crossarms are installed on the towers, serving to support the conductors and insulation devices. They not only ensure the conductors are fixed and neatly arranged but also effectively isolate current, improving the safety and reliability of the entire system.

[0003] Crossarms can deform or loosen over long periods of use, leading to unstable conductors, increased risk of power line failures, short circuits, or breaks, threatening power transmission safety, and even causing greater safety hazards. To address these issues, the inventors have proposed a box-type crossarm for high-voltage terminal towers. Utility Model Content

[0004] In order to solve the problem of instability of crossarms during long-term use, the purpose of this utility model is to provide a box-type crossarm for high-voltage terminal towers.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a box-type crossarm for high-voltage terminal towers, including a crossarm mechanism, the crossarm mechanism including a first mounting ring and a second mounting ring, a crossarm body is installed on the outer side of the first mounting ring and the second mounting ring, a connecting plate and a fixing plate symmetrically distributed are respectively installed on the outer side of the two crossarm bodies, a first screw symmetrically distributed is fixed at the top of the fixing plate, the first screw is inserted through the connecting plate, a first nut is threaded on the outer side of the first screw, a square groove is opened in the connecting plate, the first screw is inserted through the square groove, the connecting plate is rotatably connected to the crossarm body, the fixing plate is fixedly connected to the crossarm body, a connecting groove is opened in the first mounting ring and the second mounting ring, an arc-shaped insert is fixed on the outer side of the two crossarm bodies, the arc-shaped insert is inserted into the connecting groove.

[0006] Preferably, the top end of the crossarm body is provided with a sliding groove, a sliding frame is slidably provided in the sliding groove, an insulator is installed at the top end of the sliding frame, a pin is movably inserted in the sliding frame, and an array of insertion holes are provided at the top end of the crossarm body, with the pin inserted through the insertion holes.

[0007] Preferably, the first mounting ring is fixed with a first fixing block at both ends, the second mounting ring is fixed with a second fixing block at both ends, and a second screw is fixed on the side of the first fixing block near the second fixing block in a symmetrical arrangement. The second screw is inserted through the second fixing block, and two second nuts are threaded on the outer side of the second screw.

[0008] Preferably, an external slide rail is fixedly provided at the bottom end of the crossarm body, a limiting plate is inserted into the external slide rail with damping, a handle is fixedly provided at the bottom end of the limiting plate, and friction rings are fixedly provided on the inner walls of the first mounting ring and the second mounting ring.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, by setting up arc-shaped inserts, connecting grooves, fixing plates, connecting plates and bolts and other structures to cooperate with each other, the operation is simple when installing the crossarm body, improving construction efficiency, reducing construction difficulty and cost. At the same time, the connection between the connecting plate and the fixing plate can enhance stability, ensure that the conductor is firmly fixed, reduce drift and vibration, thereby improving the reliability of the entire power transmission system.

[0011] 2. In this utility model, by setting up a sliding groove, a sliding frame, an insulator and a pin, etc., the position of the sliding frame can be adjusted, and then the position of the insulator can be adjusted, which facilitates the guiding and adjustment of the wire. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the crossarm mechanism of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] Figure 4 This is an exploded view of the crossarm mechanism and its connecting structure of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0018] Figure 6 This utility model Figure 4 Enlarged structural diagram at point C.

[0019] In the diagram: 1. Crossarm mechanism; 11. Mounting ring 1; 12. Mounting ring 2; 13. Connecting groove; 14. Crossarm body; 15. Arc-shaped insert; 16. External slide rail; 17. Limiting plate; 18. Handle; 19. Friction ring; 2. Connecting plate; 21. Square groove; 22. Fixing plate; 23. Screw 1; 24. Nut 1; 25. Fixing block 1; 26. Fixing block 2; 27. Screw 2; 28. Nut 2; 3. Slide groove; 31. Sliding frame; 32. Insulator; 33. Pin; 34. Insertion hole; 4. Tower body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-6 As shown, this utility model provides a box-type crossarm for high-voltage terminal towers, including a crossarm mechanism 1. The crossarm mechanism 1 includes a first mounting ring 11 and a second mounting ring 12, which are sleeved on the outside of the tower body 4. A crossarm body 14 is installed on the outside of both the first mounting ring 11 and the second mounting ring 12. The crossarm body 14 is used to support the power lines. A connecting plate 2 and a fixing plate 22, which are symmetrically distributed, are respectively installed on the outside of the two crossarm bodies 14. The two crossarm bodies 14 can be connected by connecting the connecting plate 2 and the fixing plate 22, thereby improving the stability of the device. A first screw 23, which is symmetrically distributed, is fixed at the top of the fixing plate 22 and passes through the bolt. Inside the connecting plate 2, a nut 24 is threaded onto the outer side of the first screw 23. The nut 24 and the first screw 23 can limit the installation between the fixing plate 22 and the connecting plate 2. A square groove 21 is opened inside the connecting plate 2, and the first screw 23 is inserted through the square groove 21. The connecting plate 2 is rotatably connected to the crossarm body 14, and the fixing plate 22 is fixedly connected to the crossarm body 14. A connecting groove 13 is opened in both the first mounting ring 11 and the second mounting ring 12. An arc-shaped insert 15 is fixedly installed on the outer side of the two crossarm bodies 14. The arc-shaped insert 15 is inserted into the connecting groove 13, so that the crossarm body 14 can be installed on the outer side of the first mounting ring 11 and the second mounting ring 12.

[0022] The top of the crossarm body 14 is provided with a sliding groove 3, a sliding frame 31 is slidably provided in the sliding groove 3, an insulator 32 is installed on the top of the sliding frame 31, a pin 33 is movably inserted in the sliding frame 31, and an array of insertion holes 34 are provided on the top of the crossarm body 14, with the pin 33 inserted through the insertion holes 34.

[0023] By adopting the above technical solution, the position of the insulator 32 can be adjusted by moving the sliding frame 31, and thus the position of the insulator 32 can be adjusted according to the direction of the wire.

[0024] The first mounting ring 11 is fixed with a first fixing block 25 at both ends, and the second mounting ring 12 is fixed with a second fixing block 26 at both ends.

[0025] By adopting the above technical solution, the first mounting ring 11 and the second mounting ring 12 can be connected through the connection between the first fixing block 25 and the second fixing block 26.

[0026] A second screw 27 is fixedly installed on one side of the first fixing block 25 near the second fixing block 26. The second screw 27 is inserted through the second fixing block 26.

[0027] By adopting the above technical solution, the No. 1 fixing block 25 and the No. 2 fixing block 26 can be connected by the No. 2 screw 27.

[0028] Two nuts 28 are fitted on the outer thread of screw 27.

[0029] By adopting the above technical solution, the two second nuts 28 are located on both sides of the second fixing block 26, which can improve the stability of the connection.

[0030] An external slide rail 16 is fixedly provided at the bottom end of the crossarm body 14, and a limiting plate 17 is inserted into the external slide rail 16 for damping.

[0031] By adopting the above technical solution, the limiting plate 17 can be moved to the outer side of the bottom end of the arc-shaped insert 15, which can prevent the crossbeam body 14 from being pulled out of the connecting groove 13. The limiting plate 17 will not move when it is not under force.

[0032] A handle 18 is fixedly provided at the bottom of the limiting plate 17.

[0033] By adopting the above technical solution, the handle 18 can easily pull the limiting plate 17.

[0034] Friction rings 19 are fixedly provided on the inner walls of both mounting ring 11 and mounting ring 12.

[0035] By adopting the above technical solution, the friction ring 19 can improve the stability of the first mounting ring 11 and the second mounting ring 12 on the outside of the tower body 4.

[0036] Working principle: First, the No. 1 installation ring 11 and the No. 2 installation ring 12 are fitted onto the outside of the tower body 4 and fixed by the No. 1 screw 23 and the No. 1 nut 24. Then, the two crossarm bodies 14 are inserted into the connecting groove 13 by the arc-shaped insert 15. Then, the connecting plate 2 is rotated so that the square groove 21 of the connecting plate 2 fits onto the outside of the No. 1 screw 23 on the fixing plate 22. Then, it is fixed by the No. 1 nut 24. This makes the operation of installing the crossarm body 14 simple, improves construction efficiency, and reduces construction difficulty and cost. At the same time, the connection between the connecting plate 2 and the fixing plate 22 can enhance stability, ensure that the conductor is firmly fixed, reduce drift and vibration, and thus improve the reliability of the entire power transmission system.

[0037] When it is necessary to adjust the position of the insulator 32, the pin 33 on the corresponding sliding frame 31 of the insulator 32 is pulled out. Then the sliding frame 31 can be slid in the sliding groove 3 so that the insulator 32 is moved to the appropriate position. Then the pin 33 can be inserted into the sliding frame 31 and the socket 34, which can facilitate the guiding adjustment of the wire.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A box-type cross arm for high voltage terminal towers, comprising a cross arm mechanism (1), characterized in that: The crossarm mechanism (1) includes a first mounting ring (11) and a second mounting ring (12). A crossarm body (14) is installed on the outer side of both the first mounting ring (11) and the second mounting ring (12). A connecting plate (2) and a fixing plate (22) are respectively installed on the outer side of the two crossarm bodies (14). A first screw (23) is fixed on the top of the fixing plate (22) and is inserted through the connecting plate (2). A first nut (24) is threaded on the outer side of the first screw (23). The connecting plate (2) has a square groove (21) inside, and the first screw (23) is inserted through the square groove (21). The connecting plate (2) is rotatably connected to the crossarm body (14). The fixing plate (22) is fixedly connected to the crossarm body (14). The first mounting ring (11) and the second mounting ring (12) both have connecting grooves (13). The two crossarm bodies (14) are fixedly provided with arc-shaped inserts (15) on their outer sides. The arc-shaped inserts (15) are inserted into the connecting grooves (13).

2. A box-type cross arm for high voltage terminal towers as claimed in claim 1, characterized in that, The top of the crossarm body (14) is provided with a sliding groove (3), a sliding frame (31) is slidably provided in the sliding groove (3), an insulator (32) is installed on the top of the sliding frame (31), a pin (33) is movably inserted in the sliding frame (31), and an array of insertion holes (34) are provided on the top of the crossarm body (14), and the pin (33) is inserted through the insertion hole (34).

3. The box-type crossarm for high-voltage terminal towers as described in claim 1, characterized in that, The first mounting ring (11) is fixed with a first fixing block (25) at both ends, and the second mounting ring (12) is fixed with a second fixing block (26) at both ends.

4. A box-type cross arm for high voltage terminal towers as claimed in claim 3, characterized in that, The first fixing block (25) is fixed with a second screw (27) that is symmetrically distributed on the side near the second fixing block (26). The second screw (27) is inserted through the second fixing block (26).

5. A box-type cross arm for high voltage terminal towers as claimed in claim 4, characterized in that, The outer thread of the second screw (27) is fitted with two second nuts (28).

6. A box-type cross arm for high voltage terminal towers as claimed in claim 1, characterized in that, The bottom end of the crossarm body (14) is fixedly provided with an external slide rail (16), and a limiting plate (17) is inserted into the external slide rail (16) for damping.

7. A box-type cross arm for high voltage terminal towers as claimed in claim 6, characterized in that, The bottom end of the limiting plate (17) is fixedly provided with a handle (18).

8. A box-type crossarm for high-voltage terminal towers as described in claim 1, characterized in that, The inner walls of the first mounting ring (11) and the second mounting ring (12) are both fixed with friction rings (19).

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