CN210467539U

CN210467539U - Transformer lead device

Info

Publication number: CN210467539U
Application number: CN201921884526.5U
Authority: CN
Inventors: 高伟军
Original assignee: Guizhou Xintongrui Technology Co Ltd
Current assignee: Guizhou Xintongrui Technology Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-05-05
Anticipated expiration: 2029-11-04

Abstract

The application discloses a transformer lead device in the technical field of transformers, which comprises a wing plate and two clamping units, wherein each clamping unit comprises a clamping part and an L-shaped supporting column, the wing plate is fixed between the two supporting columns, the wing plate is in an arch shape with a convex center, the lower end of the wing plate is sealed by an elastic film, a bulge is arranged in the center of the elastic film, an air pipe is arranged in each supporting column, an air cylinder is fixed on one side opposite to each supporting column, a piston is connected in the air cylinder in a sliding manner, a piston rod is fixed at the bottom of the piston, each piston rod is hinged with an inclined rod, and each; the clamping part is internally provided with a cavity which is communicated with the inflator through an air pipe, a sliding block for sealing the cavity is connected in the cavity in a sliding manner, a spring is arranged between the sliding block and the inner wall of the cavity, a supporting rod is arranged on the other side of the sliding block relative to the spring, and a clamping mechanism for fixing is fixed at the free end of the supporting rod. The problem of current transformer lead wire device because can not prevent that the strong wind from rocking the electric wire has been solved to this scheme.

Description

Transformer lead device

Technical Field

The utility model relates to a transformer technical field, concretely relates to transformer lead wire device.

Background

The lead of the electrical transformer generally refers to a lead led out from a high-voltage coil or a low-voltage coil of the transformer, and a traditional clamp for clamping a high-voltage tapping lead is generally made of a blocky laminated paperboard, because the tapping lead is completely and firmly clamped, the thickness of the laminated paperboard must be larger than the diameter of a cable of the tapping lead, most of wire clamps directly clamp the wire, and under the action of strong wind, all force acts on the wire due to the relative fixation of the lead clamping pieces, so that the fatigue strength of an insulating layer of the wire is easily reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide a transformer lead wire device to solve current transformer lead wire device and rock the problem that the electric wire leads to the fatigue strength decline of electric wire insulation layer because can not prevent the high wind.

In order to solve the technical problem, the utility model provides a following technical scheme: a transformer lead device comprises a wing plate and two clamping units, wherein each clamping unit comprises a clamping part and an L-shaped supporting column, the wing plate is fixed between the two supporting columns, the wing plate is in a central convex arch shape, the lower end of the wing plate is sealed by an elastic film, a bulge is arranged in the center of the elastic film, an air pipe is arranged in each supporting column, an air cylinder is fixed on one side opposite to each supporting column, a piston is connected in the air cylinder in a sliding mode, a piston rod is fixed at the bottom of the piston, each piston rod is hinged with an inclined rod, and each inclined rod is hinged with the corresponding bulge; the clamping device is characterized in that a cavity is arranged in the clamping part and is communicated with an air cylinder through an air pipe, a sliding block for sealing the cavity is connected in the cavity in a sliding mode, a spring is arranged between the sliding block and the inner wall of the cavity, a supporting rod is arranged on the other side, opposite to the spring, of the sliding block, and a clamping mechanism for fixing is fixed at the free end of the supporting rod.

The utility model discloses a theory of operation: the lifting principle of aircraft wing that this scheme utilized, when the pterygoid lamina was blown over to the high wind, because the pterygoid lamina is the convex arch shape of central authorities, the speed when wind passes through two terminal surfaces about the pterygoid lamina is different, can cause the pressure difference of terminal surface about the lower extreme, thereby make atmospheric pressure act on elastic film, make elastic film upwards sunken, drive the tilting lever upward movement who articulates in the arch, make the piston rod also upward movement, impel the air in the inflator in the cavity, force the slider outwards to extrude, itself under the condition of no wind, fixture will clip the lead wire under the effect of spring, under the strong wind condition, fixture can clip the lead wire more tight, the rocking of electric wire has been avoided, thereby the fatigue strength decline of electric wire insulating layer has also been avoided.

The utility model has the advantages that: this scheme is through utilizing the pressure differential that causes when the high wind passes the pterygoid lamina for in the air in the inflator was arranged and is delivered to the cavity, and then extrudees the slider, makes fixture clamp the electric wire tighter, has avoided the condition that appears rocking.

The optimization of the basic technical scheme is as follows:

furthermore, the support column is provided with a threaded hole for installation and use. This is convenient for mounting the solution on a transformer.

Further, the clamping mechanism is a clamping block with an arc-shaped cross section. The design is for the shape of better distribution line, guarantees the centre gripping effect like this.

Further, a rubber pad is arranged on the inner side of the clamping block. The rubber pad increases the frictional force between the electric wire and the rubber pad, so that the electric wire is more stable.

Furthermore, a limiting groove for preventing the sliding block from sliding out is arranged in the cavity. The situation that the sliding block is completely withdrawn from the cavity is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the transformer lead device of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a wing plate 1, a bulge 2, an air cylinder 3, a piston 4, a piston rod 5, an inclined rod 6, a sliding block 7, a bolt 8, a spring 9, a limiting groove 10, a clamping part 11, a clamping block 12, an air pipe 13 and a supporting column 14.

The embodiment is basically as shown in the attached figure 1: a transformer lead device comprises a wing plate 1 and two clamping units, wherein each clamping unit comprises a clamping part 11 and an L-shaped supporting column 14, the clamping part 11 and the supporting columns 14 are integrally formed, the wing plate 1 is fixed between the two supporting columns 14, the wing plate 1 is in an arch shape with a convex center, the length of the wing plate 1 is usually 40-60 cm, the lower end of the wing plate 1 is sealed by an elastic film, such as a TPU film or a PDMS film, in order to reduce the weight, all components of the scheme are made of light materials as much as possible, a bulge 2 is arranged in the center of the elastic film, an air pipe 13 is arranged in each supporting column 14, a threaded hole for installation is arranged on each supporting column 14, the scheme can be installed on a transformer by matching the threaded hole with a bolt 8, an air cylinder 3 is fixed on one side opposite to each supporting column 14, a piston 4 is slidably connected in the air, the piston rods 5 are all hinged with inclined rods 6, and the inclined rods 6 are hinged with the bulges 2; the clamping part 11 is internally provided with a cavity which is communicated with the inflator 3 through an air pipe 13, a sliding block 7 for sealing the cavity is connected in the cavity in a sliding way, a spring 9 is arranged between the sliding block 7 and the inner wall of the cavity, the other side of the sliding block 7, which is opposite to the spring 9, is provided with a supporting rod, the free end of the supporting rod is fixed with a clamping block 12 with an arc-shaped cross section, and the central angle of the general clamping block 12 is less than 180 degrees.

The specific implementation process is as follows: the lifting principle of aircraft wing that this scheme utilized, when the high wind blows pterygoid lamina 1, because pterygoid lamina 1 is the convex arch shape in central authorities, the speed when wind passes through pterygoid lamina 1 two up-and-down terminal surfaces is different, can cause the pressure difference of up-and-down terminal surface, thereby make atmospheric pressure act on elastic film, make elastic film upwards sunken, drive the tilting rod 6 upward movement who articulates on arch 2, make piston rod 5 also upward movement, in the air propulsion cavity with in the inflator 3, force slider 7 outwards to extrude, itself under the condition of no wind, fixture will clip the lead wire under the effect of spring 9, under the strong wind condition, fixture can clip the lead wire more tight, has avoided rocking of electric wire more, thereby also avoided the fatigue strength decline of electric wire insulating layer.

Claims

1. A transformer lead wire device is characterized in that: the clamping device comprises a wing plate and two clamping units, wherein each clamping unit comprises a clamping part and an L-shaped supporting column, the wing plate is fixed between the two supporting columns, the wing plate is in an arch shape with a central bulge, the lower end of the wing plate is sealed by an elastic film, a bulge is arranged in the center of the elastic film, an air pipe is arranged in each supporting column, air cylinders are fixed on one sides, opposite to the supporting columns, of the wing plates, pistons are connected in the air cylinders in a sliding mode, piston rods are fixed at the bottoms of the pistons, the piston rods are hinged to inclined rods, and the inclined rods are hinged to the bulges; the clamping device is characterized in that a cavity is arranged in the clamping part and is communicated with an air cylinder through an air pipe, a sliding block for sealing the cavity is connected in the cavity in a sliding mode, a spring is arranged between the sliding block and the inner wall of the cavity, a supporting rod is arranged on the other side, opposite to the spring, of the sliding block, and a clamping mechanism for fixing is fixed at the free end of the supporting rod.

2. The transformer lead arrangement according to claim 1, wherein: and the support column is provided with a threaded hole for installation and use.

3. A transformer lead assembly as set forth in claim 2, wherein: the clamping mechanism is a clamping block with an arc-shaped cross section.

4. A transformer lead assembly as set forth in claim 3, wherein: and a rubber pad is arranged on the inner side of the clamping block.

5. The transformer lead arrangement according to claim 4, wherein: and a limiting groove for preventing the sliding block from sliding out is arranged in the cavity.