High-voltage electric power fitting with high safety

Abstract

The utility model discloses a high voltage electric power fitting with high safety, the electric power fitting comprises a U-shaped screw rod and a wedge-shaped wire clamp slidably installed on the U-shaped screw rod, the wedge-shaped wire clamp comprises an upper wire clamp and a lower wire clamp which are symmetrically arranged up and down, the upper wire clamp and the lower wire clamp are internally provided with wedge-shaped through holes, and the wedge-shaped through holes are internally provided with wedge cores; an upper flanging is fixedly installed on the outer edge of the bottom face of the upper wire clamp, a lower flanging is fixedly installed on the outer edge of the top face of the lower wire clamp, the upper flanging and the lower flanging are symmetrical, a plurality of dampers are installed between the upper flanging and the lower flanging, and the dampers are sleeved with buffer springs. Therefore, the telegraph pole is kept vertical without inclining, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to an electric power fitting, in particular to a high-voltage electric power fitting with high safety. Background Art

[0002] Power fittings are metal accessories that connect and combine various devices in the power system and play a role in transmitting mechanical loads, electrical loads and providing some kind of protection. UT wire clamps are one type of power fittings. Their function is to adjust the tension of the steel strands of the poles or towers to balance the force.

[0003] In actual use, after a period of time, the steel strands will become longer at high temperatures due to thermal expansion and contraction, causing the steel strands to relax. This will make it impossible for the UT wire clamp to always ensure uniform force on the poles during actual use. When the force on the poles is uneven, the poles may tilt or even break due to excessive force on one side, which will not only affect the normal operation of the power system, but also pose a threat to the surrounding environment and personnel safety.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-voltage electric power fitting with high safety to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides a high-safety high-voltage electrical hardware, including a U-shaped screw and a wedge-shaped wire clamp slidably mounted thereon, the wedge-shaped wire clamp including an upper wire clamp and a lower wire clamp symmetrically arranged in the upper and lower directions, the upper wire clamp and the lower wire clamp are provided with wedge-shaped through holes, the wedge-shaped through holes are provided with a wedge core, an upper flange is fixedly mounted on the outer edge of the bottom surface of the upper wire clamp, and a lower flange is fixedly mounted on the outer edge of the top surface of the lower wire clamp, the upper flange is symmetrical with the lower flange, a plurality of dampers are installed between the upper flange and the lower flange, and a buffer spring is provided on the outer sleeve of the damper.

[0007] Furthermore, a bearing plate is fixedly installed on the bottom end of the damper, a push rod is fixedly installed on the bottom surface of the bearing plate, the push rod is slidably connected to the lower flange, a sliding frame is slidably installed on the outer wall of the lower wire clamp, a positioning screw is fixedly installed on the sliding frame, and a positioning nut is threadedly connected to the positioning screw.

[0008] Furthermore, a stress hole for a positioning screw to pass through is opened on the lower flange, the positioning screw is installed through the stress hole, and the positioning nut is located on the upper surface of the lower flange.

[0009] Furthermore, the bottom end of the buffer spring is fixedly connected to the top surface of the bearing plate, and the top end of the buffer spring is fixedly connected to the bottom surface of the upper flange.

[0010] Furthermore, a wire groove is provided on the outer peripheral side wall of the wedge core, and the wire groove and the hole wall of the wedge-shaped through hole constitute a wire clamping hole for clamping the steel strand.

[0011] Furthermore, ears are provided on both sides of the upper wire clamp, and through holes are provided on the two ears. The ears are installed on a U-shaped screw through the through holes, and both ends of the U-shaped screw are threadedly connected with adjusting nuts.

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

[0013] 1. The utility model buffers the fixed steel strands through the interaction of the upper wire clamp, the lower wire clamp, the upper flange, the lower flange, the damper and the buffer spring. When the steel strands become shorter due to thermal expansion and contraction and are in a taut state, the pressure of the steel strands on the lower wire clamp increases. At this time, the lower wire clamp drives the damper and the buffer spring to be compressed. The damper and the buffer spring are compressed to shorten the lengthened steel strands, thereby forming a taut state, so that the electric pole remains upright without tilting, and the steel strands are prevented from being too tight or too loose.

[0014] 2. The utility model can adjust the distance between the sliding frame and the lower flange by cooperating with the positioning screw and the positioning nut. When the sliding frame slides upward along the outer wall of the lower wire clamp to reduce the distance between the sliding frame and the lower flange, the sliding frame can push the push rod to drive the bearing plate to squeeze the damper, thereby limiting the sliding range of the damper and adjusting the elastic force of the buffer spring, thereby achieving the purpose of adjusting the buffer range of the steel strand, improving the fixing effect of the steel strand while avoiding damage to the steel strand caused by excessive tension, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 It is a front view structural schematic diagram of the wedge-shaped wire clamp in the utility model;

[0018] Figure 4 It is a bottom view structural schematic diagram of the wedge-shaped wire clamp in the utility model.

[0019] In the figure: 1. U-shaped screw; 2. Hanging ear; 3. Upper wire clamp; 4. Wedge-shaped through hole; 5. Wedge core; 6. Wire groove; 7. Adjusting nut; 8. Upper flange; 9. Lower wire clamp; 10. Lower flange; 11. Damper; 12. Buffer spring; 13. Push rod; 14. Loading plate; 15. Sliding frame; 16. Positioning screw; 17. Positioning nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a high-safety high-voltage power hardware, comprising a U-shaped screw 1 and a wedge-shaped wire clamp slidably mounted thereon, the wedge-shaped wire clamp comprising an upper wire clamp 3 and a lower wire clamp 9 which are symmetrically arranged in an upper and lower manner, hanging ears 2 are arranged on both sides of the upper wire clamp 3, and the two hanging ears 2 are provided with through holes, the hanging ears 2 are installed on the U-shaped screw 1 through the through holes, and the two ends of the U-shaped screw 1 are connected with adjusting nuts 7 by threads, wedge-shaped through holes 4 are arranged in the upper wire clamp 3 and the lower wire clamp 9, and a wedge core 5 is arranged in the wedge through hole 4, and a wire groove 6 is arranged on the outer peripheral side wall of the wedge core 5, and the wire groove 6 and the hole wall of the wedge through hole 4 constitute a wire clamping hole for clamping the steel strand, an upper flange 8 is fixedly mounted on the outer edge of the bottom surface of the upper wire clamp 3, and a lower flange 10 is fixedly mounted on the outer edge of the top surface of the lower wire clamp 9, the upper flange 8 is symmetrical with the lower flange 10, and a plurality of dampers 11 are installed between the upper flange 8 and the lower flange 10, and a buffer spring 12 is arranged on the outer sleeve of the damper 11;

[0022] By setting the interaction of the upper wire clamp 3, the lower wire clamp 9, the upper flange 8, the lower flange 10, the damper 11 and the buffer spring 12, the fixed steel strand is buffered, and when the steel strand becomes shorter due to thermal expansion and contraction and is in a taut state, the pressure of the steel strand on the lower wire clamp 9 increases. At this time, the lower wire clamp 9 drives the damper 11 and the buffer spring 12 to be compressed, and the damper 11 and the buffer spring 12 are compressed to shorten the lengthened steel strand, thereby forming a taut state, so that the pole remains upright without tilting, and the steel strand is prevented from being too tight or too loose.

[0023] See also Figure 3-Figure 4 A bearing plate 14 is fixedly installed at the bottom end of the damper 11, the bottom end of the buffer spring 12 is fixedly connected to the top surface of the bearing plate 14, the top end of the buffer spring 12 is fixedly connected to the bottom surface of the upper flange 8, a push rod 13 is fixedly installed on the bottom surface of the bearing plate 14, the push rod 13 is slidably connected to the lower flange 10, a sliding frame 15 is slidably installed on the outer wall of the lower wire clamp 9, a positioning screw 16 is fixedly installed on the sliding frame 15, and a positioning nut 17 is threadedly connected to the positioning screw 16;

[0024] The distance between the sliding frame 15 and the lower flange 10 can be adjusted by the positioning screw 16 and the positioning nut 17. When the sliding frame 15 slides upward along the outer wall of the lower wire clamp 9 to reduce the distance between the sliding frame 15 and the lower flange 10, the sliding frame 15 can push the push rod 13 to drive the bearing plate 14 to squeeze the damper 11, thereby limiting the sliding range of the damper 11, and adjusting the elastic force of the buffer spring 12, thereby achieving the purpose of adjusting the buffer range of the steel strand, improving the fixing effect of the steel strand while avoiding damage to the steel strand caused by excessive tension, thereby increasing practicality.

[0025] See also Figure 3 A stress hole is provided on the lower flange 10 for the positioning screw 16 to pass through. The positioning screw 16 is installed inside the stress hole. The positioning nut 17 is located on the upper surface of the lower flange 10. By arranging the positioning nut 17 above the lower flange 10, it is easier to rotate the positioning nut 17.

[0026] Working principle: The fixed steel strand is buffered by the interaction of the upper wire clamp 3, the lower wire clamp 9, the upper flange 8, the lower flange 10, the damper 11 and the buffer spring 12. When the steel strand becomes shorter due to thermal expansion and contraction and is in a taut state, the pressure of the steel strand on the lower wire clamp 9 increases. At this time, the lower wire clamp 9 drives the damper 11 and the buffer spring 12 to compress. The damper 11 and the buffer spring 12 are compressed to shorten the lengthened steel strand, thereby forming a taut state, so that the pole remains upright without tilting, and the steel strand is prevented from being too tight or too loose. The distance between the sliding frame 15 and the lower flange 10 can be adjusted by the positioning screw 16 and the positioning nut 17. When the sliding frame 15 slides upward along the outer wall of the lower wire clamp 9 to reduce the distance between the sliding frame 15 and the lower flange 10, the sliding frame 15 can push the push rod 13 to drive the bearing plate 14 to squeeze the damper 11, thereby limiting the sliding range of the damper 11, and adjusting the elastic force of the buffer spring 12, thereby achieving the purpose of adjusting the buffer range of the steel strand, improving the fixing effect of the steel strand while avoiding damage to the steel strand due to excessive tension, thereby increasing practicality.

Claims

1. A high-safety high-voltage electrical hardware, comprising a U-shaped screw (1) and a wedge-shaped wire clamp slidably mounted thereon, characterized in that: The wedge-shaped wire clamp comprises an upper wire clamp (3) and a lower wire clamp (9) which are symmetrically arranged in the upper and lower directions, wherein the upper wire clamp (3) and the lower wire clamp (9) are provided with wedge-shaped through holes (4), and the wedge-shaped through holes (4) are provided with wedge cores (5); An upper flange (8) is fixedly mounted on the outer edge of the bottom surface of the upper wire clamp (3), and a lower flange (10) is fixedly mounted on the outer edge of the top surface of the lower wire clamp (9). The upper flange (8) is symmetrical to the lower flange (10). A plurality of dampers (11) are mounted between the upper flange (8) and the lower flange (10), and a buffer spring (12) is sleeved on the outside of the damper (11).

2. A high-safety high-voltage electrical fitting as claimed in claim 1, characterized in that: A bearing plate (14) is fixedly mounted on the bottom end of the damper (11), a push rod (13) is fixedly mounted on the bottom surface of the bearing plate (14), the push rod (13) is slidably connected to the lower flange (10), a sliding frame (15) is slidably mounted on the outer wall of the lower wire clamp (9), a positioning screw (16) is fixedly mounted on the sliding frame (15), and a positioning nut (17) is threadedly connected to the positioning screw (16).

3. A high-safety high-voltage electrical hardware as claimed in claim 2, characterized in that: The lower flange (10) is provided with a stress hole for a positioning screw (16) to pass through. The positioning screw (16) is installed through the stress hole. The positioning nut (17) is located on the upper surface of the lower flange (10).

4. A high-safety high-voltage electrical fitting as claimed in claim 2, characterized in that: The bottom end of the buffer spring (12) is fixedly connected to the top surface of the bearing plate (14), and the top end of the buffer spring (12) is fixedly connected to the bottom surface of the upper flange (8).

5. A high-safety high-voltage electrical fitting as claimed in claim 1, characterized in that: A wire groove (6) is provided on the outer peripheral side wall of the wedge core (5), and the wire groove (6) and the hole wall of the wedge-shaped through hole (4) form a wire clamping hole for clamping the steel strand.

6. A high-safety high-voltage electrical hardware as claimed in claim 1, characterized in that: The upper wire clamp (3) is provided with hanging ears (2) on both sides, and the two hanging ears (2) are provided with through holes. The hanging ears (2) are installed on the U-shaped screw rod (1) through the through holes, and the two ends of the U-shaped screw rod (1) are connected with adjusting nuts (7) through threads.

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