CN220821332U - Switch of explosion-proof circuit of mining high-voltage combined vacuum power distribution device - Google Patents

Abstract

The utility model discloses a switch of a flame-proof circuit of a mining high-voltage combined vacuum power distribution device, which comprises a frame plate for enhancing the structural strength of an electric box, wherein the frame plate is bent to form a mounting groove, a first sealing bottom plate and a second sealing bottom plate are oppositely arranged in the mounting groove, a wire hole for a wire to pass through is formed in the first sealing bottom plate, and a female terminal for wiring is arranged on the inner wall of the second sealing bottom plate; the frame plate is slidably provided with a cover plate for closing the space between the first cover plate and the second cover plate in the mounting groove, the inner wall of the cover plate is provided with a male terminal matched with the female terminal, and the female terminal and the male terminal are connected to complete circuit conduction. The utility model forms a groove-shaped mounting structure through the frame plate for supporting the electric box, forms a closed structure through the cover plate which is arranged in a sliding way, and sets the female terminal and the male terminal which are connected and disconnected in the closed structure, thus isolating dust and further avoiding burning explosion.

Description

Switch of explosion-proof circuit of mining high-voltage combined vacuum power distribution device

Technical Field

The utility model relates to the technical field of coal mine electrical devices, in particular to a switch of a flame-proof circuit of a mining high-voltage combined vacuum power distribution device.

Background

Inside the mine cavity, there are problems of dust and a strong combustible atmosphere, especially dust. Therefore, the problem of explosion needs to be considered in erecting the circuit in the mine hole, and then the circuit explosion suppression needs to be completed in the process of corresponding electrical design and construction so as to avoid the risk of explosion. Most of the existing circuit switches are open, the barrier property to dust is not strong, the metal sheet is exposed to the outside, and explosion is easily caused when the existing circuit switches are closed.

Disclosure of utility model

In view of the above problems, the utility model aims to provide a switch of an explosion-proof circuit of a mining high-voltage combined vacuum power distribution device.

The switch of the explosion-proof circuit of the mining high-voltage combined vacuum power distribution device comprises a frame plate for enhancing the structural strength of an electric box, wherein the frame plate is bent to form a mounting groove, a first sealing bottom plate and a second sealing bottom plate are oppositely arranged in the mounting groove, a wire hole for a wire to pass through is formed in the first sealing bottom plate, and a female terminal for wiring is arranged on the inner wall of the second sealing bottom plate; the frame plate is slidably provided with a cover plate for closing the space between the first cover plate and the second cover plate in the accommodating groove, the inner wall of the cover plate is provided with a male terminal matched with the female terminal, and the female terminal and the male terminal are connected to complete circuit conduction.

In some preferred embodiments, the frame plate comprises a first plate body and a second plate body bent in an L shape, and the second plate body is fixedly connected to the edge of the first plate body to form a placement groove.

In some preferred embodiments, the outer surfaces of the first and second plates are formed with sliding grooves, and the cover plate is formed with sliding teeth that bite into the sliding grooves.

In some preferred embodiments, the outer walls of the first and second plates are integrally connected by a reinforcing rib.

In some preferred embodiments, two side walls of the chute are provided with elastic rubber pads, and two sides of the sliding teeth are abutted against the rubber pads.

In some preferred embodiments, the rubber pad is integrally bent, and the edge is connected to the inner wall of the chute, so as to form a cavity capable of yielding in the middle.

In some preferred embodiments, the second plate body is provided with ear plates at both ends.

In some preferred embodiments, a terminal bracket is fixedly disposed on the cover plate, and the male terminal is fixedly disposed on the terminal bracket.

In some preferred embodiments, the wire aperture, male terminal and female terminal are all two.

The beneficial effects are that: the utility model forms a groove-shaped mounting structure through the frame plate for supporting the electric box, forms a closed structure through the cover plate which is arranged in a sliding way, and sets the female terminal and the male terminal which are connected and disconnected in the closed structure, thus isolating dust and further avoiding burning explosion.

Drawings

FIG. 1 is a schematic view of an embodiment of the present utility model without a cover plate.

Fig. 2 is a schematic structural view of an embodiment of the present utility model.

FIG. 3 is a schematic diagram of an arrangement of a cover plate according to an embodiment of the utility model.

FIG. 4 is a schematic view of another arrangement of the cover plate according to an embodiment of the utility model.

Fig. 5 is a schematic view showing a partial structure of a sliding tooth extending into a sliding groove according to an embodiment of the utility model.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

Referring to fig. 1-5, a switch of an explosion-proof circuit of a mining high-voltage combined vacuum power distribution device comprises a frame plate 10 for enhancing the structural strength of an electric box, wherein the frame plate 10 is bent to form a mounting groove 11, a first sealing bottom plate 20 and a second sealing bottom plate 30 are oppositely arranged in the mounting groove 11, a wire hole 21 for a wire to pass through is formed in the first sealing bottom plate 20, and a female terminal 22 for wiring is arranged on the inner wall of the second sealing bottom plate 30. A cover plate 40 for closing the space between the first cover plate 20 and the second cover plate 30 in the seating groove 11 is slidably provided on the shelf plate 10, a male terminal 41 adapted to the female terminal 22 is provided on the inner wall of the cover plate 40, and the female terminal 22 and the male terminal 41 are connected to complete the circuit.

In practice, the shelf 10 is disposed within the electrical cabinet and serves as a structural reinforcement for the electrical cabinet, specifically, for example, structural reinforcement beams, reinforcement columns, and the like within the electrical cabinet. The chassis 10 is folded to form the mounting groove 11, and further the circuit closure as a switch is achieved by providing the first and second sealing boards 20 and 30 to form a closed space. In use, the wires extend between the first and second back cover panels 20, 30 through the wire holes 21, respectively. As shown in fig. 1, the female terminal 22 is located between the first board 20 and the second board 30, and the lead wire at the other end is connected to the female terminal 22 through the second board 30. The cover plate 40 serves to close the space between the first cover plate 20 and the second cover plate 30 within the seating groove 11. The cover 40 is slidably disposed on the shelf 10 to perform opening and closing actions of the space between the first and second cover panels 20 and 30 by sliding the cover 40. Meanwhile, the male terminal 41 is provided on the cover plate 40, and thus the on and off operations of the female terminal 22 and the male terminal 41 can also be completed when the cover plate 40 is slid.

In this embodiment, the opening and closing operation of the switch is performed by turning on and off the female terminal 22 and the male terminal 41. Meanwhile, since the female terminal 22 and the male terminal 41 are both located in the space between the first and second back plates 20 and 30, it has a sealing property, and flying dust can be prevented, thereby securing safety. In addition, the shelf board 10 itself also serves as a structural support and reinforcement of the electric cabinet, and one component has two functions, having the effects of saving materials and improving economy.

In a specific implementation, the edges of the first sealing bottom plate 20, the second sealing bottom plate 30 and the frame plate 10 may be coated with butter to match the sliding of the sealing plate 40, so as to further improve the sealing effect.

In some preferred embodiments, the shelf 10 includes a first plate 12 and a second plate 13 bent in an "L" shape, and the second plate 13 is fixedly connected to the edge of the first plate 12 to form the seating groove 11.

As shown in fig. 1-2, the first plate body 12 and the second plate body 13 are formed as separate parts and integrally connected to each other, thereby reducing the difficulty of processing and installation. As shown in fig. 1-2, the first plate body 12 protrudes outward with respect to the second plate body 13, and may form a supporting portion, which facilitates formation of a relief space in the electric box, and structurally achieves a supporting effect.

In some preferred embodiments, the outer surfaces of the first plate body 12 and the second plate body 13 are formed with sliding grooves 14, and the cover plate 40 is formed with sliding teeth 43 engaged into the sliding grooves 14.

As shown in fig. 2, by providing the slide groove 14 and the slide teeth 43 as a slide fit structure between the deck plate 40 and the shelf plate 10, the connection structure between the deck plate 10 and the deck plate 40 is ensured to be stable.

In some preferred embodiments, the outer walls of the first plate body 12 and the second plate body 13 are integrally connected by a reinforcing rib 15.

As shown in fig. 1-2, the strength of the connection structure of the first plate body 12 and the second plate body 13 is enhanced by providing the reinforcing ribs 15.

In some preferred embodiments, two side walls of the chute 14 are provided with elastic rubber pads 16, and two sides of the sliding teeth 43 are abutted against the rubber pads 16.

As shown in fig. 5, by providing the rubber pad 16 on the side wall of the chute 14, and when the sliding tooth 43 bites into the chute 14, the rubber pad 16 abuts against the sliding tooth 43. The elastic property of the rubber pad 16 can be used for abutting against the sliding teeth 43, so that the connection firmness between the sealing cover 40 and the frame plate 10 is enhanced, and the sliding is not influenced.

In some preferred embodiments, rubber pad 16 is bent over in its entirety and the edges are attached to the inner wall of chute 14 to form a cavity 17 in the middle that can be left.

As shown in fig. 5, the cavity 17 formed in the middle of the rubber pad 16 can have a yielding effect when pressed. The sliding teeth 43 are easily accommodated when the width of the sliding teeth 43 increases.

In some preferred embodiments, the second plate 13 is provided with ear plates 50 at both ends.

In the present preferred embodiment, by providing the ear plate 50, the second plate 13 is easily installed and fixed.

In some preferred embodiments, as shown in fig. 3-4, a terminal bracket 42 is fixedly disposed on the cover plate 40, and the male terminal 41 is fixedly disposed on the terminal bracket 42.

In the present preferred embodiment, the male terminal 41 is provided by the terminal holder 42, so that the arrangement is more firm and stable.

In some preferred embodiments, the wire hole 21, the male terminal 41 and the female terminal 22 are all two.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (9)

1. The switch of the explosion-proof circuit of the mining high-voltage combined vacuum power distribution device is characterized by comprising a frame plate (10) for enhancing the structural strength of an electric box, wherein the frame plate (10) is bent to form a mounting groove (11), a first sealing bottom plate (20) and a second sealing bottom plate (30) are oppositely arranged in the mounting groove (11), a wire hole (21) for a wire to pass through is formed in the first sealing bottom plate (20), and a female terminal (22) for wiring is arranged on the inner wall of the second sealing bottom plate (30);

The frame plate (10) is slidably provided with a cover plate (40) for closing a space between the first cover plate (20) and the second cover plate (30) in the accommodating groove (11), the inner wall of the cover plate (40) is provided with a male terminal (41) matched with the female terminal (22), and the female terminal (22) and the male terminal (41) are connected to complete circuit conduction.

2. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 1, wherein: the frame plate (10) comprises a first plate body (12) and a second plate body (13) which is bent to be L-shaped, and the second plate body (13) is fixedly connected to the edge of the first plate body (12) to form a placement groove (11).

3. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 2, wherein: sliding grooves (14) are formed on the outer surfaces of the first plate body (12) and the second plate body (13), and sliding teeth (43) meshed into the sliding grooves (14) are formed on the cover plate (40).

4. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 2, wherein: the outer walls of the first plate body (12) and the second plate body (13) are connected into a whole through reinforcing ribs (15).

5. A switch for a mining high voltage combined vacuum power distribution unit flame-proof circuit as claimed in claim 3, wherein: rubber pads (16) with elasticity are arranged on two side walls of the sliding groove (14), and two sides of the sliding tooth (43) are abutted against the rubber pads (16).

6. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 5, wherein: the rubber pad (16) is integrally bent, and the edge of the rubber pad is connected to the inner wall of the chute (14) so as to form a cavity (17) capable of yielding in the middle.

7. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 2, wherein: ear plates (50) are arranged at two ends of the second plate body (13).

8. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 1, wherein: a terminal bracket (42) is fixedly arranged on the cover plate (40), and the male terminal (41) is fixedly arranged on the terminal bracket (42).

9. The switch of a mining high-voltage combined vacuum power distribution device explosion-proof circuit as claimed in claim 1, wherein: the number of the wire holes (21), the number of the male terminals (41) and the number of the female terminals (22) are two.