Iron fitting for a power transmission tower

Abstract

The utility model belongs to iron accessory field, concretely speaking is a kind of iron accessory for transmission tower, including U type wire clamp;The U type wire clamp both ends are provided with thread, the U type wire clamp surface is fixedly connected fixed plate, the fixed plate surface is located inside the rotation connection screw rod of U type wire clamp, the screw rod one end is provided with octagonal nut, the screw rod surface is connected moving block with screw thread, the moving block surface is symmetrically provided with connecting rod, the connecting rod one end is provided with connecting ring, the moving block both ends are internally provided with sliding hole, the sliding hole inner wall is slidably connected to the surface of U type wire clamp;Through the screw rod adjusting structure design of U type wire clamp and moving block, realized the flexible adaptation function of the installation length of stay wire, rotates octagonal nut and drives screw rod to rotate, drives moving block to slide along U type wire clamp horizontally, adjusts the pitch of connecting ring, solved the installation difficult problem caused by the mismatch of stay wire and electric tower fixed distance, improved the convenience of stay wire fixation.

Description

Technical Field

[0001] This utility model relates to the field of iron accessories, specifically an iron accessory for power transmission towers. Background Technology

[0002] Transmission tower accessories refer to various metal components installed on transmission towers, primarily used for supporting, fixing, and protecting transmission lines. These accessories play a crucial role in power transmission and distribution systems, covering transmission lines and substations from 10kV to 220kV.

[0003] In the prior art, such as in CN206282975U, a U-shaped wire clamp device is disclosed. It includes a main wire clamp housing and a cover plate that covers the main wire clamp housing. The main wire clamp housing has a U-shaped structure, and the cover plate is engaged with the upper part of the main wire clamp housing. The U-shaped wire clamp device also includes a clamping pad for clamping the wire located inside the main wire clamp housing, and an adjusting component for adjusting the clamping force of the clamping pad. The adjusting component includes an adjusting screw rod that passes through the cover plate and is threadedly connected to the cover plate. One end of the adjusting screw rod located inside the main wire clamp housing contacts the clamping pad, and an adjusting handle is fixed to the other end of the adjusting screw rod located outside the main wire clamp housing.

[0004] While the aforementioned patent allows for adjustment of the conductor tightening force through the adjustment component, offering simple and convenient operation and good versatility, and achieves a more stable and reliable overall structure through improvements to the main body of the clamp, the aforementioned patent still presents challenges. During the wire fixing process, one end of the wire needs to be connected and fixed to the power tower device. However, the distance between the wire and the power tower device makes fixing difficult and reduces the ease of fixing. Furthermore, during the fixing and locking process, the nut loosens over time, affecting the stability of the locking. Therefore, to address the above problems, an iron accessory for transmission towers is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technology, during the fixing of the guy wire, one end of the guy wire needs to be connected and fixed to the power tower device. However, there is a certain distance between the guy wire and the power tower device, which makes fixing difficult and reduces the convenience of fixing. At the same time, when fixing and locking, the nut loosens over time, affecting the stability of the locking. This utility model proposes an iron accessory for power transmission towers.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A transmission tower iron accessory of this utility model includes a U-shaped clamp; the U-shaped clamp has threaded grooves at both ends; a fixing plate is fixedly connected to the surface of the U-shaped clamp; a threaded screw is rotatably connected to the surface of the fixing plate inside the U-shaped clamp; an octagonal nut is provided at one end of the threaded screw; a movable block is threadedly connected to the surface of the threaded screw; a connecting rod is symmetrically arranged on the surface of the movable block; a connecting ring is provided at one end of the connecting rod; sliding holes are opened inside both ends of the movable block; the inner wall of the sliding hole is slidably fitted onto the surface of the U-shaped clamp; a conical washer is fitted onto the surface of the threaded grooves; and a locking nut is provided on one side of the conical washer.

[0007] Preferably, the diameter of the sliding hole is larger than the cross-sectional width of the U-shaped clamp, and the inner wall of the sliding hole in contact with the U-shaped clamp is coated with a wear-resistant lubricating coating.

[0008] Preferably, the taper angle of the conical gasket is 15° to 30°, and the bottom surface of the conical gasket is provided with anti-slip serrations in the area where it contacts the end face of the U-shaped wire clamp.

[0009] Preferably, the thread direction of the locking nut is consistent with the thread pattern direction, and the outer surface of the locking nut is machined with knurled anti-slip texture.

[0010] Preferably, the axially symmetrical distribution spacing of the connecting rods is 1.2 to 1.5 times the width of the U-shaped clamp, and the connecting rods are fixed to the moving block by welding.

[0011] Preferably, each side of the octagonal nut is recessed to form an arc-shaped gripping groove, and an anti-loosening adhesive layer is provided at the connection between the end face of the octagonal nut and the threaded screw.

[0012] The advantages of this utility model are:

[0013] 1. This utility model achieves flexible adaptation of the installation length of the guy wire by adjusting the threaded screw of the U-shaped wire clamp and the moving block. Rotating the octagonal nut drives the threaded screw to rotate, which in turn drives the moving block to slide horizontally along the U-shaped wire clamp, adjusting the spacing of the connecting rings. This solves the problem of installation difficulties caused by the mismatch between the guy wire and the fixed distance of the power tower, and improves the convenience of fixing the guy wire.

[0014] 2. This utility model achieves the anti-loosening function through the composite locking design of conical washer and locking nut. The conical washer deforms under the compression of the locking nut, and its bottom anti-slip teeth mesh with the end face of the U-shaped clamp to increase friction, which solves the problem of loosening caused by vibration or load changes in traditional nuts and improves locking stability. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the U-shaped wire clamp structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the conical gasket structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the movable block structure of this utility model.

[0020] In the diagram: 1. U-shaped clamp; 2. Threaded pattern; 3. Fixing plate; 4. Threaded screw; 5. Octagonal nut; 6. Moving block; 7. Connecting rod; 8. Connecting ring; 9. Sliding hole; 10. Conical washer; 11. Locking nut. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figures 1-4 As shown, an iron accessory for a transmission tower includes a U-shaped clamp 1; threaded grooves 2 are provided at both ends of the U-shaped clamp 1; a fixing plate 3 is fixedly connected to the surface of the U-shaped clamp 1; a threaded screw 4 is rotatably connected to the surface of the fixing plate 3 inside the U-shaped clamp 1; an octagonal nut 5 is provided at one end of the threaded screw 4; a movable block 6 is threadedly connected to the surface of the threaded screw 4; a connecting rod 7 is symmetrically arranged on the surface of the movable block 6; a connecting ring 8 is provided at one end of the connecting rod 7; sliding holes 9 are opened inside both ends of the movable block 6; the inner wall of the sliding hole 9 is slidably sleeved on the surface of the U-shaped clamp 1; a conical washer 10 is sleeved on the surface of the threaded grooves 2; a locking nut 11 is provided on one side of the conical washer 10.

[0023] During operation, the U-shaped clamp 1 is connected to the pull wire during installation. The octagonal nut 5 is rotated to drive the threaded screw 4 to rotate, which in turn drives the moving block 6 to slide horizontally along the sliding hole 9 on the surface of the U-shaped clamp 1. The spacing of the connecting ring 8 is adjusted to match the pull wire length. The locking nut 11 is tightened to compress the conical washer 10 and deform it. The anti-slip teeth on its bottom surface engage and lock with the end face of the U-shaped clamp 1. The linkage adjustment of the threaded screw 4 and the moving block 6 enables flexible adaptation of the pull wire length. The deformation and locking of the conical washer 10 improves the anti-loosening ability and solves the problems of mismatched installation distance and loose nuts.

[0024] Furthermore, the diameter of the sliding hole 9 is larger than the cross-sectional width of the U-shaped wire clamp 1, and the contact area between the inner wall of the sliding hole 9 and the U-shaped wire clamp 1 is coated with a wear-resistant lubricating coating.

[0025] During operation, the inner wall of the sliding hole 9 is coated with a polytetrafluoroethylene wear-resistant and lubricating coating. When the moving block 6 slides, the coating reduces the frictional resistance with the U-shaped clamp 1. The hole diameter margin design allows for slight offset to avoid jamming. The wear-resistant and lubricating coating reduces sliding loss, extends the service life of the sliding hole 9, and ensures the smoothness of the adjustment of the moving block 6.

[0026] Furthermore, the taper angle of the tapered gasket 10 is 15° to 30°, and the bottom surface of the tapered gasket 10 is provided with anti-slip teeth in the area where it contacts the end face of the U-shaped wire clamp 1.

[0027] During operation, the tapered washer 10 adopts a 20° taper angle and has V-shaped anti-slip teeth laser-engraved on the bottom surface. When the locking nut 11 is pressed, the teeth are embedded into the end face of the U-shaped clamp 1 to form a mechanical engagement. The taper angle and the anti-slip teeth work together to enhance the locking friction, suppress the nut backing out due to vibration, and improve the locking stability.

[0028] Furthermore, the thread direction of the locking nut 11 is consistent with the thread direction of the thread pattern 2, and the outer surface of the locking nut 11 is machined with knurled anti-slip texture.

[0029] During operation, the outer surface of the locking nut 11 is rolled with diamond-shaped knurled anti-slip texture, which increases the friction of manual operation when tightening. Its thread direction is consistent with the thread pattern 2 of the U-shaped clamp 1 to avoid conflict of rotation direction. The knurled anti-slip texture enhances the tightening force efficiency. The same-direction thread design prevents the double nut interlocking failure and optimizes the reliability of operation.

[0030] Furthermore, the axially symmetrical distribution spacing of the connecting rods 7 is 1.2 to 1.5 times the width of the U-shaped clamp 1, and the connecting rods 7 are fixed to the moving block 6 by welding;

[0031] During operation, the connecting rod 7 is symmetrically welded to both sides of the moving block 6, with a spacing of 1.3 times the width of the U-shaped clamp 1. The welding points adopt a full welding process to ensure load distribution. The symmetrical layout and full welding reinforcement balance the distribution of tension in the pull wire, prevent local stress concentration and breakage of the connecting rod 7, and improve the structural strength.

[0032] Furthermore, each side of the octagonal nut 5 is recessed to form an arc-shaped gripping groove, and an anti-loosening rubber layer is provided at the connection between the end face of the octagonal nut 5 and the threaded screw 4.

[0033] During operation, the octagonal nut 5 has an arc-shaped gripping groove milled on its side, with a groove depth of 2mm. The end of the threaded screw 4 is coated with epoxy anti-loosening adhesive, which fills the thread gap after curing to inhibit loosening. The arc-shaped gripping groove makes it easy to apply force with a wrench or manually. The anti-loosening adhesive layer blocks the vibration transmission path, achieving double anti-loosening protection.

[0034] Working principle: Rotating the octagonal nut 5 drives the threaded screw 4 to rotate, which in turn drives the moving block 6 to slide horizontally along the U-shaped clamp 1 to adjust the spacing of the connecting ring 8 to match the length of the pull cable. When the locking nut 11 is tightened, it squeezes the conical washer 10 to deform and uses the anti-slip teeth on the bottom surface to engage with the end face of the U-shaped clamp 1 to prevent loosening. At the same time, the wear-resistant lubricating coating on the inner wall of the sliding hole 9 reduces movement friction. The symmetrical welding layout of the connecting rod 7 disperses the pull cable tension. The arc-shaped holding groove of the octagonal nut 5 and the anti-loosening rubber layer work together to suppress vibration and loosening, so as to achieve adjustable pull cable length and stable locking.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An iron accessory for a transmission tower, characterized in that: The device includes a U-shaped wire clamp (1); the U-shaped wire clamp (1) has threaded grooves (2) at both ends, a fixing plate (3) is fixedly connected to the surface of the U-shaped wire clamp (1), the surface of the fixing plate (3) is rotatably connected to a threaded screw (4) inside the U-shaped wire clamp (1), an octagonal nut (5) is provided at one end of the threaded screw (4), a moving block (6) is threadedly connected to the surface of the threaded screw (4), a connecting rod (7) is symmetrically arranged on the surface of the moving block (6), a connecting ring (8) is provided at one end of the connecting rod (7), sliding holes (9) are opened inside both ends of the moving block (6), the inner wall of the sliding hole (9) is slidably sleeved on the surface of the U-shaped wire clamp (1), a conical washer (10) is sleeved on the surface of the threaded grooves (2), and a locking nut (11) is provided on one side of the conical washer (10).

2. The iron accessory for a transmission tower according to claim 1, characterized in that: The diameter of the sliding hole (9) is larger than the cross-sectional width of the U-shaped wire clamp (1), and the inner wall of the sliding hole (9) is coated with a wear-resistant and lubricating coating in the contact area with the U-shaped wire clamp (1).

3. The iron accessory for a transmission tower according to claim 1, characterized in that: The tapered gasket (10) has a taper angle of 15° to 30°, and the bottom surface of the tapered gasket (10) is provided with anti-slip teeth in the area where it contacts the end face of the U-shaped wire clamp (1).

4. The iron accessory for a transmission tower according to claim 1, characterized in that: The thread direction of the locking nut (11) is consistent with the thread direction of the thread pattern (2), and the outer surface of the locking nut (11) is machined with knurled anti-slip texture.

5. The iron accessory for a transmission tower according to claim 1, characterized in that: The axially symmetrical distribution of the connecting rods (7) is 1.2 to 1.5 times the width of the U-shaped clamp (1), and the connecting rods (7) are fixed to the moving block (6) by welding.

6. The iron accessory for a transmission tower according to claim 1, characterized in that: Each side of the octagonal nut (5) is recessed to form an arc-shaped gripping groove, and an anti-loosening rubber layer is provided at the connection between the end face of the octagonal nut (5) and the threaded screw (4).

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