CN211016885U

CN211016885U - Load switch

Info

Publication number: CN211016885U
Application number: CN201922501478.3U
Authority: CN
Inventors: 陈泽民; 廖发扬
Original assignee: Norxun Electric Co ltd
Current assignee: Norxun Electric Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-14
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a load switch, which comprises a switch body, wherein the bottom of the switch body is provided with a damping base, and the damping base comprises a bottom plate and a chain type damping mechanism connected between the bottom plate and the bottom surface of a shell of the switch body; the chain type damping mechanism comprises a bottom plate, slide blocks, tension springs and pressure springs, wherein the slide blocks are arranged in multiple rows, each row of slide blocks are arranged on the bottom plate in a sliding mode along a straight line, and the tension springs and the pressure springs are alternately connected between the slide blocks so as to connect the slide blocks in each row into a chain; each sliding block is connected to the bottom surface of the switch body shell through an inclined connecting rod, and two adjacent connecting rods are symmetrical to each other; the utility model discloses a load switch compares with prior art, has better shock attenuation performance, can reduce the fault rate that receives the vibrations influence to lead to, ensures that electric power system is stable, practices thrift the maintenance cost.

Description

Load switch

Technical Field

The utility model belongs to the technical field of power equipment, especially, relate to a load switch.

Background

Load switches are one of the important electrical components in high voltage circuits. Load switches are key devices in the control of power transmission lines and are used to make or break circuits during normal operation. The existing load switch has poor damping performance, and faults caused by poor damping performance occur during transportation bumping and installation and use (when the load switch is installed in an area with frequent vibration, such as near a railway), so that the power supply stability of a power system is influenced.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a load switch compares with prior art, has better shock attenuation performance, can reduce the fault rate that receives the vibrations influence to lead to, ensures that electric power system is stable, practices thrift the maintenance cost.

The utility model discloses a load switch, including the switch body, the bottom of switch body is equipped with a vibration damping mount, the vibration damping mount includes bottom plate and the chain damper who connects between bottom plate and the switch body shell bottom surface; the chain type damping mechanism comprises a bottom plate, slide blocks, tension springs and pressure springs, wherein the slide blocks are arranged in multiple rows, each row of slide blocks are arranged on the bottom plate in a sliding mode along a straight line, and the tension springs and the pressure springs are alternately connected between the slide blocks so as to connect the slide blocks in each row into a chain; every slider is connected in the bottom surface of switch body shell through the connecting rod of an slope, mutual symmetry between two adjacent connecting rods, because the connecting rod slope is arranged, consequently when vibrations take place, the switch body promotes the slider through the connecting rod under the action of gravity and slides, and adjacent two slip opposite direction in every row of slider, adorn the pressure spring between two sliders that have the trend of being close to each other, adorn the extension spring between two sliders that have the trend of keeping away from each other, play effectual cushioning effect, because the equal horizontal arrangement of pressure spring and extension spring, consequently can reduce vibration damping mount's height greatly, ensure that switch body focus is steady.

Furthermore, the bottom surface of the shell of the switch body is provided with a hinging lug for connecting the connecting rods, the size and the position of the hinging lug are determined according to the movement space required by the sliding block, and the included angle between each connecting rod and the horizontal plane in the initial state is ensured to be not less than 45 degrees.

Furthermore, the cross section of the sliding block is in an inverted T shape, and a sliding groove which is matched with the sliding block in shape and is in the T shape is formed in the bottom plate, so that the effect of single-degree-of-freedom sliding fit is achieved, and the integrity is good.

Furthermore, each row of sliding blocks are distributed at equal intervals, the free lengths of the tension springs and the compression springs are the same, the distance between the tension springs and the sliding blocks is the same, the elastic coefficients of the tension springs and the compression springs are the same, the deformation amount and the generated elastic force of the springs and the compression springs are kept consistent in the initial state and after vibration occurs, and system stability is facilitated.

Furthermore, the both ends of every style of calligraphy of falling T spout all are equipped with and are used for carrying out spacing dog to the slider.

The utility model has the advantages that: the utility model discloses a load switch compares with prior art, has better shock attenuation performance, can reduce the fault rate that receives the vibrations influence to lead to, ensures that electric power system is stable, practices thrift the maintenance cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

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

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1: the load switch comprises a switch body 1, wherein a damping base is arranged at the bottom of the switch body 1, and the damping base comprises a bottom plate 7 and a chain type damping mechanism connected between the bottom plate 7 and the bottom surface of a shell 2 of the switch body 1; the chain type damping mechanism comprises a bottom plate 7, sliders 3, tension springs 6 and pressure springs 4, the sliders 3 are arranged in multiple rows, each row of sliders 3 is installed on the bottom plate 7 in a sliding mode along a straight line, and the tension springs 6 and the pressure springs 4 are connected between the sliders 3 alternately to connect the sliders 3 in each row into a chain; every slider 3 is connected in the bottom surface of switch body 1 shell 2 through the connecting rod 5 of an slope, mutual symmetry between two adjacent connecting rods 5, because connecting rod 5 slope is arranged, consequently when vibrations take place, switch body 1 promotes slider 3 through connecting rod 5 under the action of gravity and slides, and two adjacent slip opposite direction in every row of slider 3, adorn pressure spring 4 between two sliders 3 that have the trend of being close to each other, adorn extension spring 6 between two sliders 3 that have the trend of keeping away from each other, play effectual cushioning effect, because pressure spring 4 and the equal horizontal arrangement of extension spring 6, consequently can reduce vibration damping mount's height greatly, ensure that switch body 1 focus is steady.

In this embodiment, the bottom surface of the housing 2 of the switch body 1 is provided with a hinge lug for connecting the connecting rod 5, the size and the position of the hinge lug are determined according to the movement space required by the sliding block 3, and meanwhile, the included angle between each connecting rod 5 and the horizontal plane in the initial state is not less than 45 degrees.

In this embodiment, the cross section of the sliding block 3 is inverted T-shaped, and the bottom plate 7 is provided with a sliding groove which is shaped like a T and matched with the sliding block 3, so that the effect of single-degree-of-freedom sliding fit is achieved, and the integrity is good.

In the embodiment, the sliders 3 in each row are distributed at equal intervals, the free lengths of the tension springs 6 and the compression springs 4 are the same, the distance between the tension springs 6 and the free lengths of the compression springs 4 are the same as that between the sliders 3, and the elastic coefficients of the tension springs 6 and the compression springs 4 are the same, so that the deformation amount and the generated elastic force of the springs and the compression springs 4 are kept consistent in the initial state and after vibration occurs, and the system stability is facilitated.

In this embodiment, two ends of each inverted T-shaped sliding groove are provided with a stopper 8 for limiting the sliding block 3.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A load switch, characterized by: the switch comprises a switch body, wherein a damping base is arranged at the bottom of the switch body, and the damping base comprises a bottom plate and a chain type damping mechanism connected between the bottom plate and the bottom surface of a shell of the switch body; the chain type damping mechanism comprises a bottom plate, slide blocks, tension springs and pressure springs, wherein the slide blocks are arranged in multiple rows, each row of slide blocks are arranged on the bottom plate in a sliding mode along a straight line, and the tension springs and the pressure springs are alternately connected between the slide blocks so as to connect the slide blocks in each row into a chain; each sliding block is connected to the bottom surface of the switch body shell through an inclined connecting rod, and two adjacent connecting rods are symmetrical to each other.

2. The load switch of claim 1, wherein: the bottom surface of the switch body shell is provided with a hinge lug for connecting a connecting rod.

3. The load switch of claim 2, wherein: the cross section of the sliding block is in an inverted T shape, and an inverted T-shaped sliding groove matched with the shape of the sliding block is arranged on the bottom plate.

4. The load switch of claim 3, wherein: each row of sliding blocks are distributed at equal intervals, the free lengths of the tension springs and the pressure springs are the same, and the distance between the tension springs and the free lengths of the pressure springs is consistent with that between the sliding blocks.

5. The load switch of claim 4, wherein: both ends of every style of calligraphy of falling T spout all are equipped with and are used for carrying out spacing dog to the slider.