CN218471795U - Electric box power-off device that opens door - Google Patents

Abstract

The utility model discloses a door-opening power-off device for an electric box, which comprises a box body, an installation mechanism is installed on the back of the box body, a relay is installed inside the box body, a main switch is installed inside the box body, and a The switch power-off mechanism, the switch power-off mechanism includes a shell, and a squeeze plate is arranged inside the shell, and a squeeze switch rod is fixed on one side of the squeeze plate, and a connecting seat is fixed on the other side of the squeeze plate and the inside of the shell. One side of the connection seat is fixed with a contact piece, one side of the extrusion plate is opened with a guide hole, the inside of the box is fixed with a guide post, and the outside of the guide post is sleeved with a compression spring, and the front of the box is connected by a hinge. There is a box door, the front of the box door is embedded with an observation window, and the front of the box door is equipped with a door lock. The utility model has the advantages of simple structure and strong stability, which enables double power-off when the electric box is checked for internal maintenance and power-off, and improves the stability and safety of the electric box opening and power-off.

Description

An electric box door opening and power-off device

technical field

The utility model relates to the technical field of electric boxes, in particular to an electric box door opening power-off device.

Background technique

The distribution box has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, not limited by the site, widely used, stable and reliable operation, high space utilization rate, less land occupation and environmental protection effect. It is the control center that directs the various components in the power supply line to distribute power reasonably. It is the control link that reliably receives the upper-end power supply and correctly feeds out the load power. It is also the key to obtain whether the user is satisfied with the power supply quality. Improving the operational reliability of the power distribution box is the goal of creating high-quality projects. Different equipment requires different requirements. For example, in order to ensure safety, it is necessary to cut off the power of the electrical devices in the electrical box when the door is opened.

Chinese patent number CN212114445U provides a high-voltage power distribution cabinet with line protection function, including a main box body, a second fixed plate, a box door and connecting wires, the upper right end of the main box body is provided with an air inlet, and the left end of the air inlet A suction fan is provided, and the suction fan is fixed on the first fixed plate, while the first fixed plate is fixed on the main box body, the copper rods are respectively connected to the left electric post and the right electric post, and the left electric post Both the post and the right connection post are connected to each other with springs, and the springs are fixed on the main box, while the right connection post is connected to the incoming wire, and the connection wire is connected to the left connection post. The high-voltage power distribution cabinet with line protection function uses the convection of two fans to quickly dissipate heat in the distribution box, and the air at the air inlet is filtered to make it difficult for dust to enter the distribution box, avoiding dust accumulation and damage to components The device adopts the structure of opening the door to cut off the power, which can effectively protect the safety of personnel during maintenance.

Although the above-mentioned patent adopts the structure of opening the door to cut off the power, which can effectively protect the safety of personnel during maintenance, the structure is relatively too complicated. At the same time, the use of the power-off structure to directly connect the main power line will easily lead to leakage or breakdown caused by excessive voltage, so it is easy to appear. Unsafe issue.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an electrical box with a switch power-off mechanism.

(2) Technical solutions

In order to achieve the above purpose, the utility model provides the following technical solutions. The technical solution adopted by an electric box door opening and power-off device is: comprising a box, the back of the box is equipped with a mounting mechanism, and the inside of the box is A relay is installed, a main switch is installed inside the box, and a switch power-off mechanism is installed inside the box. The switch power-off mechanism includes a shell, and an extrusion plate is arranged inside the shell. One side of the pressure plate is fixed with a squeeze switch rod, the other side of the squeeze plate and the inside of the housing are fixed with a connection seat, one side of the connection seat is fixed with a contact piece, the squeeze plate A guide hole is opened on one side, a guide column is fixed inside the box, and a compression spring is sleeved on the outside of the guide column.

As a preferred solution, the front of the box body is rotatably connected with a box door, the front of the box door is embedded with an observation window, and the front of the box door is equipped with a door lock.

As a preferred solution, a support rod is fixedly installed on the top of the box, and a rainproof plate is fixed on the top of the support rod.

As a preferred solution, both sides of the box body are provided with air-ventilating grids, and dust-proof nets are fixed inside the air-ventilating grids.

As a preferred solution, several fixing frames are fixed inside the box body, and a fixing hole is opened on one side of the fixing frames, and the relay is fixed on the fixing frames.

As a preferred solution, the installation mechanism includes an expansion board, one side of the expansion board is fixed on the back of the box, and the other side of the expansion board is fixed with a support frame.

As a preferred solution, a mounting plate is fixed on one side of the support frame, and a mounting hole is opened on one side of the mounting plate.

(3) Beneficial effects

Compared with the prior art, the utility model provides a power-off device for opening the door of an electrical box, which has the following beneficial effects:

1. Through the set switch power-off mechanism, relay and main switch, when the box door is opened, the compression spring in the switch power-off mechanism restores the extrusion plate to its original position, and at the same time separates the two contact pieces. This structure is simple , strong stability, the contact piece is separated and the power-off control relay is used to power-off the main power line to improve the safety when the power is off. When the door is closed, the door pushes the extrusion switch rod and the extrusion plate to move, compressing The spring is compressed, and at this time the two contact pieces are in contact, and then the signal is transmitted to the relay to energize the main power line. The main switch used can enable the internal maintenance of the electrical box to perform double power-off when the power is cut off, further improving the electrical box. Electrical stability and safety.

2. Through the installed installation mechanism, the expansion board in the installation mechanism can increase the contact area between the support frame and the box body, improve the stability of the contact between the support frame and the box body, and use the installation plate to facilitate the installation of the box body to the designated position. The mechanism can prevent the box body from contacting the wall, prevent the box body from being corroded, and improve the service life of the electrical box.

3. Through the ventilation grid and dust-proof net, the ventilation grid can make the air flow in the electrical box, facilitate the heat dissipation in the electrical box, and ensure the temperature of the working environment of the electrical control device. The dust-proof net can prevent dust from entering the electrical box through the ventilation grid. Inside the box, the working environment of electrical control devices is guaranteed.

4. Through the observation window, rainproof plate and fixed frame, the observation window is convenient for the staff to check the internal conditions of the box. The rainproof plate can prevent rainwater from falling on the box and prevent rainwater from entering the box. The fixed frame is convenient for electrical installation. The electrical control device in the box is installed, and at the same time, the electrical control device is separated from the box by a certain distance, so that the electrical control device is easy to dissipate heat.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model;

Fig. 3 is a schematic diagram of the internal structure of the switch power-off mechanism of the present invention;

Fig. 4 is a structural schematic diagram of the installation mechanism of the utility model.

In the figure: 1. Box body; 2. Box door; 3. Observation window; 4. Door lock; 5. Support rod; 6. Rainproof plate; 7. Ventilation grid; 8. Dustproof net; 10. Fixed frame; 11. Fixing hole; 12. Relay; 13. Main switch; 14. Switch power-off mechanism; 15. Shell; 16. Extrusion plate; 17. Extrusion switch rod; 18. Guide column; Guide hole; 20, compression spring; 21, connection seat; 22, contact sheet; 23, expansion board; 24, support frame; 25, mounting plate; 26, mounting hole.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further elaborated and illustrated:

Please refer to Fig. 1-4, the utility model: comprises box body 1, and relay 12 is installed in the inside of box body 1, and the inside of box body 1 is fixed with several fixed mounts 10, and one side of fixed frame 10 has fixed hole 11, The relay 12 is fixed on the fixed frame 10, and the fixed frame 10 is convenient for installing the electrical control device in the electrical box, and at the same time, the electrical control device is separated from the box body 1 by a certain distance, so that the electrical control device is convenient for heat dissipation;

A main switch 13 is installed inside the box body 1. The main switch 13 enables double power-off when the electric box is checked for internal maintenance and power failure, further improving the stability and safety of the electrical box opening and power-off. The inside of the box body 1 is equipped with a switch Power-off mechanism 14, switch power-off mechanism 14 comprises shell 15, and shell 15 interior is provided with extruding plate 16, and one side of extruding plate 16 is fixed with extruding switch lever 17, and when chamber door 2 is closed, chamber door 2 pushes Squeeze the switch rod 17 and the extrusion plate 16 to move, and the compression spring is compressed. At this time, the two contact pieces 22 are in contact, and then the signal is transmitted to the relay 12 to energize the main power line. The other side of the extrusion plate 16 and the shell 15 The interior of each is fixed with a connection seat 21, and one side of the connection seat 21 is fixed with a contact piece 22, and the contact piece 22 is separated and the power-off control relay 12 is used to cut off the main power line to improve the safety when the power is off. One side of the extruding plate 16 is provided with a guide hole 19, and the inside of the box body 1 is fixed with a guide post 18, and the outside of the guide post 18 is sleeved with a compression spring 20. The compression spring 20 restores the pressing plate 16 to its original position and simultaneously separates the two contact pieces 22, which has a simple structure and strong stability.

As a preferred solution, the front of the box body 1 is connected with the box door 2 through hinge rotation, and the front of the box door 2 is embedded with an observation window 3. The observation window 3 is convenient for the staff to check the internal situation of the box body 1. A door lock 4 is installed, a support rod 5 is fixedly installed on the top of the box body 1, and a rainproof plate 6 is fixed on the top of the support bar 5, which can prevent rainwater from falling on the box body 1 and prevent rainwater from entering the box body 1, both sides of the box body 1 are provided with ventilation grids 7, which can make the air in the electrical box circulate, facilitate the heat dissipation in the electrical box, and ensure the temperature of the working environment of the electrical control device. The interior of the ventilation grid 7 is fixed There is a dust-proof net 8, which can prevent dust from entering the box body 1 through the air-permeable grid 7, so as to ensure the working environment of the electrical control device.

As a preferred solution, a mounting mechanism 9 is installed on the back of the box body 1. The mounting mechanism 9 can prevent the box body 1 from contacting the wall, avoid corrosion of the box body 1, and improve the service life of the electrical box. The mounting mechanism 9 includes an expansion board 23, One side of the expansion plate 23 is fixed on the back of the box body 1, the expansion plate 23 can increase the contact area between the support frame 24 and the box body 1, and improve the stability of the contact between the support frame 24 and the box body 1, and the other side of the expansion plate 23 is fixed There is a support frame 24, one side of the support frame 24 is fixed with a mounting plate 25, and one side of the mounting plate 25 is provided with a mounting hole 26.

The working principle of the utility model is: the box body 1 is fixedly installed to a designated position through the installation mechanism 9, and the box body 1 is not in contact with the wall by using the installation mechanism 9, so that the box body 1 is prevented from being corroded, and the service life of the electrical box is improved. The expansion board 23 in the mounting mechanism 9 can increase the contact area between the support frame 24 and the box body 1, improve the stability of the support frame 24 contacting the box body 1, and install the electrical control device and the relay 12 on the fixed frame 10. The frame 10 is convenient for the installation of the electrical control device in the electrical box, and at the same time, the electrical control device is separated from the box body 1 by a certain distance, so that the electrical control device is convenient for heat dissipation. Heat dissipation to ensure the temperature of the working environment of the electrical control device. The dust-proof net 8 can prevent dust from entering the box body 1 through the ventilation grid 7 to ensure the working environment of the electrical control device. When the box door 2 is closed, the box door 2 pushes and squeezes The switch rod 17 and the extrusion plate 16 move, and the compression spring 20 compresses. At this time, the two contact pieces 22 are in contact, and then the signal is transmitted to the relay 12 to energize the main power line. The main switch 13 used can enable the internal maintenance of the electrical box Carry out double power-off when checking power-off, improve the stability and safety of electric box door opening power-off, when box door 2 is opened, the compression spring 20 in the switch power-off mechanism 14 returns extruding plate 16 to original position, simultaneously The two contact pieces 22 are separated, the structure is simple, and the stability is strong, and the contact piece 22 is separated to power off the control relay 12 to cut off the power of the main power line, which improves the safety when the power is off.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (7)

1. A door-opening power-off device for an electric box, comprising a box body (1), characterized in that: the back side of the box body (1) is equipped with a mounting mechanism (9), and the inside of the box body (1) is installed with A relay (12), a main switch (13) is installed inside the box (1), a switch power-off mechanism (14) is installed inside the box body (1), and the switch power-off mechanism (14) Including a shell (15), the inside of the shell (15) is provided with an extruding plate (16), one side of the extruding plate (16) is fixed with an extruding switch rod (17), and the extruding plate (16) ) the other side and the inside of the shell (15) are fixed with a connection seat (21), one side of the connection seat (21) is fixed with a contact piece (22), and one of the extruded plates (16) A guide hole (19) is opened on the side, a guide column (18) is fixed inside the box body (1), and a compression spring (20) is sleeved on the outside of the guide column (18). 2. A device for opening the door and power-off of an electrical box according to claim 1, characterized in that: the front of the box body (1) is connected with a box door (2) through hinge rotation, and the box door (2) An observation window (3) is embedded in the front of the box door (2), and a door lock (4) is installed on the front of the box door (2). 3. A power-off device for opening the door of an electrical box according to claim 1, characterized in that: a support rod (5) is fixedly installed on the top of the box body (1), and the top of the support rod (5) is fixed With flashing (6). 4. The device for opening the door and power-off of an electrical box according to claim 1, characterized in that: both sides of the box (1) are provided with air-ventilating grids (7), and the inside of the air-ventilating grid (7) A dustproof net (8) is fixed. 5. A device for opening the door and power-off of an electrical box according to claim 1, characterized in that: several fixing frames (10) are fixed inside the box body (1), and one side of the fixing frame (10) A fixing hole (11) is opened, and the relay (12) is fixed on the fixing frame (10). 6. A power-off device for opening the door of an electrical box according to claim 1, characterized in that: the installation mechanism (9) includes an expansion board (23), and one side of the expansion board (23) is fixed on the box body On the back side of (1), the other side of the expansion board (23) is fixed with a support frame (24). 7. A device for opening the door of an electrical box and power-off device according to claim 6, characterized in that: a mounting plate (25) is fixed on one side of the support frame (24), and a mounting plate (25) is fixed on one side of the mounting plate (25) Have mounting hole (26).

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