CN210925849U

CN210925849U - Protection device for high-voltage switch

Info

Publication number: CN210925849U
Application number: CN201922134254.3U
Authority: CN
Inventors: 廖庆; 许亨; 周煬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-03
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a protection device for high tension switchgear, including mounting panel, switch body, high-voltage line, lid, the lateral wall fixedly connected with installing frame of mounting panel, the switch body is located the installing frame and the high-voltage line runs through the lateral wall of installing frame, the lateral wall sliding connection of lid has buffer gear, the lateral wall of installing frame is the first installation piece of fixedly connected with, second installation piece respectively, the one end lateral wall symmetry that the lid is close to the installing frame is equipped with two mounting grooves, first installation piece, second installation piece extend respectively to rather than in the relative mounting groove, the spacing groove has all been seted up with the lateral wall of second installation piece to first installation piece, the lateral wall symmetry of lid is equipped with two stop gear. The utility model has the advantages of reasonable design, can play the guard action to the switch body when birds striking, can avoid taking place the short circuit phenomenon moreover when rainfall is great, be convenient for maintain it and overhaul.

Description

Protection device for high-voltage switch

Technical Field

The utility model relates to an electric power appurtenance technical field especially relates to a protection device for high tension switchgear.

Background

The high-voltage switch can not only put a part of electric equipment or lines into operation or quit operation according to the operation requirement of a power grid, but also quickly cut off a fault part from the power grid when the electric equipment or the lines have faults, thereby ensuring the normal operation of the fault-free part in the power grid and the safety of equipment and operation maintenance personnel, therefore, the protection device of the high-voltage switch equipment is very important power transmission and distribution equipment, and the safe and reliable operation of the protection device has very important significance for the safe and effective operation of a power system.

At present, in an electric power plant, most of high-voltage cable switches are arranged at a higher position,

because the switch is located outdoors, the switch is easily impacted by birds, and when the rainfall is large, rainwater easily enters the switch to cause a short circuit phenomenon, a protection device for the high-voltage switch is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art high tension switchgear and receiving birds striking easily, and the rainwater gets into the inside short circuit phenomenon problem that causes of switch easily when rainfall is great, and the protection device for high tension switchgear who proposes, it not only can play the guard action to the switch body when birds striking, can avoid taking place short circuit phenomenon moreover when rainfall is great, is convenient for maintain it and overhauls.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a protection device for a high-voltage switch comprises a mounting plate, a switch body, a high-voltage wire and a cover body, wherein the side wall of the mounting plate is fixedly connected with a mounting frame, the switch body is positioned in the mounting frame, the high-voltage wire penetrates through the side wall of the mounting frame, the side wall of the cover body is slidably connected with a buffer mechanism, the side wall of the mounting frame is respectively and fixedly connected with a first mounting block and a second mounting block, the side wall of one end, close to the mounting frame, of the cover body is symmetrically provided with two mounting grooves, the first mounting block and the second mounting block respectively extend into the mounting grooves opposite to the first mounting block and the second mounting block, the side walls of the first mounting block and the second mounting block are respectively provided with a limiting groove, the side wall of the cover body is symmetrically provided with two limiting mechanisms, the two limiting mechanisms respectively extend into the limiting grooves opposite to the limiting grooves and tightly abut against the side wall of the, the sealing device is characterized in that a gas transmission mechanism is connected in the communicating groove in a sealing and sliding mode, the gas transmission mechanism penetrates through the side wall of the communicating groove and extends to the outer side of the first mounting block, a sealing mechanism is arranged on the mounting frame and abuts against the side wall of the high-voltage wire tightly, and the gas transmission mechanism is connected with the sealing mechanism through a gas transmission pipe.

Preferably, buffer gear includes the U template of sliding connection on the lid lateral wall, be connected with a plurality of first springs between the lateral wall of U template and lid.

Preferably, stop gear is including seting up the direction spout on the lid lateral wall, sliding connection has the stopper in the direction spout, be connected with a plurality of second springs between the inside wall of stopper and direction spout, the stopper runs through the lateral wall of direction spout and extends to the spacing inslot.

Preferably, the gas transmission mechanism includes sealed sliding connection at the sealed piece in the intercommunication inslot, be connected with a plurality of third springs between the inside wall in sealed piece and intercommunication groove, the lateral wall fixedly connected with push rod of sealed piece, the push rod runs through the lateral wall in intercommunication groove and extends to the outside of first installation piece.

Preferably, the sealing mechanism includes the ring channel of seting up on the installing frame, install annular gasbag in the ring channel, the lateral wall of annular gasbag and the lateral wall of high-voltage line are supported tightly, the gas-supply pipe communicates with intercommunication groove, annular gasbag each other respectively.

Preferably, the third spring is a tension spring.

Compared with the prior art, the utility model, its beneficial effect does:

1. through the setting of lid, U template, first spring, can play the cushioning effect to it when birds striking to the U template, avoid the switch body to break down, and then the normal operating of guarantee electric wire netting.

2. Through the setting of installing frame, first installation piece, second installation piece, mounting groove, spacing groove, intercommunication groove, stop gear, gas transmission mechanism, sealing mechanism, can play the guard action to the switch body when the rainfall is great, avoid the rainwater to lead to the fact the influence to the switch body in getting into the installing frame from the threading department of high-tension line, and can be convenient for dismantle the lid when the switch body breaks down and maintain the switch body.

To sum up, the utility model has the advantages of reasonable design, not only can play the guard action to the switch body when birds striking, can avoid taking place short circuit phenomenon moreover when rainfall is great, be convenient for maintain it and overhaul.

Drawings

Fig. 1 is a schematic structural diagram of a protection device for a high-voltage switch according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is a schematic connection diagram of the mounting plate and the mounting frame.

In the figure: the air-conditioner comprises a mounting plate 1, a switch body 2, a high-voltage wire 3, a mounting frame 4, a cover body 5, a U-shaped plate 6, a first spring 7, a first mounting block 8, a mounting groove 9, a communicating groove 10, a sealing block 11, a third spring 12, a push rod 13, a limiting groove 14, a guide sliding groove 15, a limiting block 16, a second spring 17, an annular groove 18, an annular air bag 19, an air pipe 20 and a second mounting block 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a protection device for a high-voltage switch comprises a mounting plate 1, a switch body 2, a high-voltage wire 3 and a cover body 5, wherein a mounting frame 4 is fixedly connected to the side wall of the mounting plate 1, the switch body 2 is positioned in the mounting frame 4, the high-voltage wire 3 penetrates through the side wall of the mounting frame 4, a buffer mechanism is slidably connected to the side wall of the cover body 5, the buffer mechanism comprises a U-shaped plate 6 slidably connected to the side wall of the cover body 5, a plurality of first springs 7 are connected between the U-shaped plate 6 and the side wall of the cover body 5, and the buffer mechanism can reduce the impact force on the cover body 5 under the action of the first springs 7 when birds impact the U-shaped plate 6, so that the switch body 2;

the side wall of the mounting frame 4 is fixedly connected with a first mounting block 8 and a second mounting block 21 respectively, two mounting grooves 9 are symmetrically arranged on the side wall of one end, close to the mounting frame 4, of the cover body 5, the first mounting block 8 and the second mounting block 21 extend into the mounting grooves 9 opposite to the first mounting block 8 and the second mounting block 21 respectively, limiting grooves 14 are formed in the side walls of the first mounting block 8 and the second mounting block 21 respectively, two limiting mechanisms are symmetrically arranged on the side wall of the cover body 5, the two limiting mechanisms extend into the limiting grooves 14 opposite to the two limiting mechanisms and abut against the side walls of the two limiting mechanisms, each limiting mechanism comprises a guide sliding groove 15 formed in the side wall of the cover body 5, a limiting block 16 is connected in the guide sliding groove 15 in a sliding manner, a plurality of second springs 17 are connected between the limiting block 16 and the inner side wall of the guide sliding groove 15, the limiting block 16 penetrates through the side wall of the guide sliding, The second mounting block 21 is connected, so that the cover body 5 can be conveniently detached and mounted, and the switch body 2 can be quickly overhauled when a fault occurs;

the first mounting block 8 and the mounting frame 4 are jointly provided with a communicating groove 10, a gas transmission mechanism is connected in the communicating groove 10 in a sealing and sliding manner, the gas transmission mechanism penetrates through the side wall of the communicating groove 10 and extends to the outer side of the first mounting block 8, the gas transmission mechanism comprises a sealing block 11 connected in the communicating groove 10 in a sealing and sliding manner, a plurality of third springs 12 are connected between the sealing block 11 and the inner side wall of the communicating groove 10, the third springs 12 are tension springs, the side wall of the sealing block 11 is fixedly connected with a push rod 13, the push rod 13 penetrates through the side wall of the communicating groove 10 and extends to the outer side of the first mounting block 8, and the gas transmission mechanism is arranged to discharge gas in the communicating groove 10 through a gas transmission pipe 20 when the cover body 5 is connected with the first mounting block 8 and the second mounting block 21;

be equipped with sealing mechanism on the installing frame 4, sealing mechanism offsets tightly with the lateral wall of high-voltage line 3, be connected through gas-supply pipe 20 between gas transmission mechanism and the sealing mechanism, sealing mechanism is including seting up the ring channel 18 on installing frame 4, install annular gasbag 19 in the ring channel 18, the lateral wall of annular gasbag 19 offsets tightly with the lateral wall of high-voltage line 3, gas-supply pipe 20 respectively with intercommunication groove 10, annular gasbag 19 communicates each other, sealing mechanism's setting can be through gas-supply pipe 20 with the gas in the intercommunication groove 10 arrange to annular gasbag 19 in, make annular gasbag 19 inflation and offset tightly with the lateral wall of high-voltage line 3, avoid the rainwater to cause the influence to switch body 2 in getting into installing frame 4.

The utility model discloses its functional principle is explained to following mode of operation of accessible:

in the utility model, when the switch body 2 needs to be protected, the first mounting block 8 and the second mounting block 21 are respectively opposite to the mounting groove 9, the limiting block 16 is pulled to slide into the guide sliding groove 15, the U-shaped plate 6 is pushed, the first mounting block 8 and the second mounting block 21 are respectively slid into the mounting groove 9 opposite to the first mounting block, the limiting block 16 is loosened, the limiting block 16 slides into the limiting groove 14 and is abutted against the inner side wall of the limiting groove under the elastic action of the second spring 17, the sealing block 11 slides in the communicating groove 10 under the thrust action of the cover body 5, the gas in the communicating groove 10 is discharged into the annular air bag 19 through the air pipe 20, the annular air bag 19 expands and is abutted against the side wall of the high-voltage wire 3, and rainwater is prevented from entering the mounting frame 4;

when needing to maintain switch body 2, pulling stopper 16 makes it slide to the direction spout 15 in, takes out lid 5 from first installation piece 8, second installation piece 21, maintains switch body 2 and overhauls, and when birds struck U template 6, under the effect of first spring 7, reduces the influence of impact to lid 5, and then can protect switch body 2 not influenced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A protection device for a high-voltage switch comprises a mounting plate (1), a switch body (2), a high-voltage wire (3) and a cover body (5), and is characterized in that the side wall of the mounting plate (1) is fixedly connected with a mounting frame (4), the switch body (2) is positioned in the mounting frame (4) and the high-voltage wire (3) penetrates through the side wall of the mounting frame (4), the side wall of the cover body (5) is connected with a buffer mechanism in a sliding manner, the side wall of the mounting frame (4) is respectively and fixedly connected with a first mounting block (8) and a second mounting block (21), two mounting grooves (9) are symmetrically arranged on the side wall of one end, close to the mounting frame (4), of the cover body (5), the first mounting block (8) and the second mounting block (21) extend into the mounting grooves (9) opposite to the first mounting block and the second mounting block respectively, and limiting grooves (14) are formed on the side walls of the first mounting block (, the lateral wall symmetry of lid (5) is equipped with two stop gear, two stop gear all extends to in rather than relative spacing groove (14) and offsets tightly rather than the lateral wall, intercommunication groove (10) have been seted up jointly on first installation piece (8) and installing frame (4), intercommunication groove (10) internal seal sliding connection has gas transmission mechanism, gas transmission mechanism runs through the lateral wall of intercommunication groove (10) and extends to the outside of first installation piece (8), be equipped with sealing mechanism on installing frame (4), sealing mechanism offsets tightly with the lateral wall of high-voltage line (3), be connected through gas-supply pipe (20) between gas transmission mechanism and the sealing mechanism.

2. A protection device for a high voltage switch according to claim 1, characterized in that said damping means comprise a U-shaped plate (6) slidingly coupled to the side wall of the cover (5), said U-shaped plate (6) being coupled to the side wall of the cover (5) by a plurality of first springs (7).

3. The protection device for the high-voltage switch is characterized in that the limiting mechanism comprises a guide sliding groove (15) formed in the side wall of the cover body (5), a limiting block (16) is connected in the guide sliding groove (15) in a sliding mode, a plurality of second springs (17) are connected between the limiting block (16) and the inner side wall of the guide sliding groove (15), and the limiting block (16) penetrates through the side wall of the guide sliding groove (15) and extends into a limiting groove (14).

4. The protection device for the high-voltage switch is characterized in that the gas transmission mechanism comprises a sealing block (11) which is connected in a sealing and sliding mode in a communication groove (10), a plurality of third springs (12) are connected between the sealing block (11) and the inner side wall of the communication groove (10), a push rod (13) is fixedly connected to the side wall of the sealing block (11), and the push rod (13) penetrates through the side wall of the communication groove (10) and extends to the outer side of the first mounting block (8).

5. The protection device for the high-voltage switch is characterized in that the sealing mechanism comprises an annular groove (18) formed in the mounting frame (4), an annular air bag (19) is mounted in the annular groove (18), the side wall of the annular air bag (19) is abutted against the side wall of the high-voltage wire (3), and the air pipe (20) is communicated with the communication groove (10) and the annular air bag (19) respectively.

6. A protection device for a high voltage switch according to claim 4, characterized in that the third spring (12) is a tension spring.