CN207303913U - A kind of UHV transmission cable protecting device - Google Patents

Abstract

The utility model relates to the technical field of UHV power transmission cables, in particular to a protection device for UHV power transmission cables, which includes rubber pads, and a plurality of clamping devices are installed on the side of the rubber pads, and the clamping devices include concave plates, The side of the concave plate away from the opening is connected to the rubber pad, the top of the concave plate is provided with a first long hole, and the top of the concave plate is equipped with two fixing parts corresponding to the position of the first long hole. block, a fixed rod is connected between the two fixed blocks, and two movable blocks are sleeved on the fixed rod, so that the movable block slides along the surface of the fixed rod, and a spring is connected between the two movable blocks, and the spring Sleeved on the fixed rod, the bottom ends of the two movable blocks both extend to the inside of the first elongated hole and are on the same level as the bottom edge of the first elongated hole. The utility model has the advantages of simple structure and convenient use, which not only protects the high-voltage cables, but also improves the stability of the position of the rubber pad.

Description

A protection device for UHV transmission cables

technical field

The utility model relates to the technical field of ultra-high voltage transmission cables, in particular to a protection device for ultra-high voltage transmission cables.

Background technique

In the high-voltage cable installation rooms of substations of various voltage levels, generally according to the installation needs of high-voltage switchgear, multiple holes are opened on the cabinet body to facilitate the passage and fixing of UHV cables at cable terminals. In long-term work practice, it is found that , passing the UHV cable through the hole that is simply cut and exposed is not only easy to be scratched by the rough hole, but also after the UHV cable is energized, it will cause the insulation of the UHV cable to decrease or cause discharge, and in severe cases The cables are burned and can no longer be used, resulting in widespread power outages.

Utility model content

The purpose of the utility model is to solve the defect that the high-voltage cables are easily scratched by rough holes in the prior art, and propose a protection device for UHV transmission cables.

In order to achieve the above object, the utility model adopts the following technical solutions:

A protective device for UHV transmission cables is designed, which includes a rubber pad, and a plurality of clamping devices are installed on the side of the rubber pad, and the clamping device includes a concave plate. connection, the top of the concave plate is provided with a first elongated hole, and the top of the concave plate is equipped with two fixing blocks corresponding to the position of the first elongated hole, and a fixing rod is connected between the two fixing blocks , two movable blocks are sleeved on the fixed rod, so that the movable block slides along the surface of the fixed rod, and a spring is connected between the two movable blocks, and the spring is sleeved on the fixed rod, and the two movable blocks The bottom ends all extend to the inside of the first elongated hole and are on the same level as the bottom edge of the first elongated hole, and a metal elastic piece is arranged between the two movable blocks, and the metal elastic piece is located inside the concave plate The bottom of the concave plate is provided with a second elongated hole extending to the side of the bottom of the concave plate, and a limiting mechanism is provided inside the second elongated hole.

Preferably, the limiting mechanism includes a connecting block, the connecting block is installed in the second elongated hole, the top of the connecting block is connected with a mounting plate, and the upper surface of the mounting plate is provided with a plurality of protrusions, The bottom of the connecting block is connected with a fixed plate, and one end of the fixed plate is connected with the concave plate through a locking screw. There are at least fourteen projections arranged in an equidistant manner. The projections Pyramidal.

Preferably, the metal elastic member is arc-shaped, and the metal elastic member is a leaf spring.

The protection device for UHV transmission cables proposed by the utility model has the beneficial effects that: by adding rubber pads, it is used to lay inside rough holes, thereby protecting the high-voltage cables and avoiding the high-voltage cables from being scratched; by adding clips The holding device is convenient to fix the position of the rubber pad, so as to avoid the misalignment of the position of the rubber pad when installing the high-voltage cable, and further improve the protection of the high-voltage cable at the bottom of the rubber pad. The utility model has the advantages of simple structure and convenient use, which not only protects the high-voltage cables, but also improves the stability of the position of the rubber pad.

Description of drawings

Fig. 1 is the structural representation of a kind of UHV power transmission cable protection device proposed by the utility model;

Fig. 2 is a structural schematic diagram of a clamping device of a UHV transmission cable protection device proposed by the utility model.

In the figure: concave plate 1, first elongated hole 2, fixed block 3, fixed rod 4, spring 5, movable block 6, metal elastic part 7, bump 8, mounting plate 9, second elongated hole 10, Connecting block 11, fixing plate 12, locking screw 13, rubber pad 14.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. .

Referring to Figures 1-2, a protective device for UHV transmission cables includes a rubber pad 14, and a plurality of clamping devices are installed on the side of the rubber pad 14, and the clamping device includes a concave plate 1, and the side of the concave plate 1 is away from the opening Connected with the rubber pad 14, the top of the concave plate 1 is provided with a first elongated hole 2, and the top of the concave plate 1 is equipped with two fixing blocks 3 corresponding to the positions of the first elongated holes 2, and the two fixing blocks 3 A fixed rod 4 is connected between them, and two movable blocks 6 are sleeved on the fixed rod 4, so that the movable block 6 slides along the surface of the fixed rod 4, and a spring 5 is connected between the two movable blocks 6, and the spring 5 is socketed On the fixed rod 4, the bottom ends of the two movable blocks 6 all extend to the inside of the first elongated hole 2 and are on the same level as the bottom edge of the first elongated hole 2, by setting the two movable blocks 6 and the spring 5. It is convenient for the metal elastic member 7 to define the position of the metal elastic member 7 after being deformed.

A metal elastic piece 7 is arranged between the two movable blocks 6, and the metal elastic piece 7 is located inside the concave plate 1, and the bottom of the concave plate 1 is provided with a second long hole extending to the side of the bottom of the concave plate 1 10. The metal elastic piece 7 is arc-shaped, and the metal elastic piece 7 is a spring leaf. By setting the metal elastic piece 7 in a circular arc shape, the elastic strength of the metal elastic piece 7 is improved, and the clamping of the concave plate 1 is improved. stability.

The inside of the second elongated hole 10 is provided with a limit mechanism, the limit mechanism includes a connecting block 11, the connecting block 11 is installed in the second elongated hole 10, the top of the connecting block 11 is connected with the mounting plate 9, and the top of the mounting plate 9 The surface is provided with a plurality of protrusions 8, the bottom of the connecting block 11 is connected with a fixed plate 12, and one end of the fixed plate 12 is connected with the concave plate 1 through a locking screw 13, and there are at least fourteen protrusions 8, and the The bumps 8 are arranged in the form of a pyramid, and a plurality of pyramid-shaped bumps 8 are arranged to improve the friction between the bumps 8 and the side wall of the cabinet, and further improve the rubber pad 14 during installation. Stability, by setting the locking screw 13, it is convenient to separate and fix the fixed plate 12 from the concave plate 1, so that the disassembly and installation of the bump 8 can be facilitated, and the installation of the bump 8 can be facilitated by setting the connecting block 11 and the mounting plate 9 At the same time, it can also drive the separation between the bump 8 and the concave plate 1 .

Working principle: When installing the rubber pad 14, first snap a plurality of concave plates 1 along the side of the hole of the cabinet, when the concave plates 1 are clipped to the side of the hole, the side wall of the cabinet is elastic to the metal Part 7 is extruded. In the process of extrusion, the metal elastic part 7 will push the two movable blocks 6 to move on the fixed rod 4 after being stressed. Since the two movable blocks 6 are connected with a spring 5, the spring 5 The pulling force will limit the moving distance of the two movable blocks 6, and the concave plate 1 is clamped on the side of the hole.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (3)

1. a kind of UHV transmission cable protecting device, including rubber pad (14), it is characterised in that the side of the rubber pad (14) Face is provided with multiple clamping devices, and the clamping device includes notch plate (1), side of the notch plate (1) away from opening with Rubber pad (14) connects, and the first strip hole (2), the top installation of the notch plate (1) are offered at the top of the notch plate (1) There are two fixed blocks (3) with the first strip hole (2) position correspondence, fixed link (4), institute are connected between two fixed blocks (3) State and two movable blocks (6) are socketed with fixed link (4) so that movable block (6) is slided along the surface of fixed link (4), two work Spring (5) is connected between motion block (6), the spring (5) is socketed in fixed link (4), and the bottom of two movable blocks (6) is prolonged Extend the inside of the first strip hole (2) and be in the base of the first strip hole (2) in same level, two movable blocks (6) Between be equipped with metal spring piece (7), the metal spring piece (7) is located at the inside of notch plate (1), the bottom of the notch plate (1) Portion offers and extends to second strip hole (10) of notch plate (1) bottom side, and the inside of second strip hole (10) is set Limited position mechanism.

A kind of 2. UHV transmission cable protecting device according to claim 1, it is characterised in that the position-limit mechanism bag Contiguous block (11) is included, the contiguous block (11) is installed in the second strip hole (10), is connected with the top of the contiguous block (11) Installing plate (9), the upper surface of the installing plate (9) are equipped with multiple convex blocks (8), and the bottom of the contiguous block (11) is connected with fixation Plate (12), one end of the fixed plate (12) are connected by lock-screw (13) with notch plate (1), and the convex block (8) at least sets There are 14, and arranged in a manner of equidistant, the convex block (8) is in pyramid-shaped.

A kind of 3. UHV transmission cable protecting device according to claim 1, it is characterised in that the metal spring piece (7) it is in arc-shaped, and metal spring piece (7) is spring leaf.