CN215071317U

CN215071317U - Safe explosion-proof low-voltage switchgear

Info

Publication number: CN215071317U
Application number: CN202121447060.XU
Authority: CN
Inventors: 吴诒晃; 黄敏华; 吴美欣
Original assignee: Shenzhen Rongdian Industrial Co ltd
Current assignee: Shenzhen Rongdian Industrial Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-07
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to a cubical switchboard technical field specifically is a safe explosion-proof low-voltage switchgear, the wind channel has evenly been seted up to the inside of base, and the last surface mounting of base has the box, the front surface of box is close to upper end position department and installs control panel, and the last surface mounting of box has the equipment box, the internally mounted of equipment box has first motor. The utility model discloses simple structure, detect the inside atmospheric pressure of seal box and will detect data transfer to control panel through pressure sensor, make first motor work through control panel, thereby make the threaded rod rotate, make the fly leaf drive seal box up-and-down motion through threaded connection, thereby make pressure release pipe and connecting pipe insert and close, make pressure release pipe and connecting pipe intercommunication, drive fan work through the second motor, thereby be favorable to extracting the inside gas of seal box, be favorable to the pressure release of seal box, thereby avoid the explosion of equipment, the security performance that improve equipment used.

Description

Safe explosion-proof low-voltage switchgear

Technical Field

The utility model relates to a cubical switchboard technical field specifically is a safe explosion-proof low-voltage switchgear.

Background

With the rapid development of social economy, the switch cabinet is an electrical device, the outside line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, each branch circuit is arranged according to the requirement, such as an instrument, automatic control, a motor magnetic switch, various alternating current contactors and the like, some switch cabinets are also provided with a high-voltage chamber and a low-voltage chamber, high-voltage buses are arranged, such as a power plant and the like, some switch cabinets are also provided with low-frequency load shedding for protecting main equipment, the main function of the switch cabinet is to open, close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of a power system, and components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like.

The existing high-voltage ring network switch cabinet in China mainly adopts a sulfur hexafluoride (SF6) insulating gas ring network switch cabinet, and the explosion-proof performance of a sealing chamber of the switch cabinet is poor, so that the inside of equipment is easy to explode in a high-voltage environment, therefore, technical personnel in the field provide a safe explosion-proof low-voltage switch cabinet to solve the problems provided in the background technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safe explosion-proof low-voltage switchgear to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a safe and explosion-proof low-voltage switch cabinet comprises a base, wherein an air channel is uniformly formed in the base, a box body is arranged on the upper surface of the base, a control panel is arranged on the front surface of the box body close to the upper end position, an equipment box is arranged on the upper surface of the box body, a first motor is arranged in the equipment box, a threaded rod is arranged at the output end of the first motor, a partition plate is arranged in the box body close to the lower end position, a movable plate in threaded connection with the threaded rod is slidably arranged above the partition plate in the box body, an air pipe communicated with the air channel is uniformly arranged below the partition plate in the box body, a second motor is arranged below the partition plate in the bottom of the box body, a fan is arranged at the output end of the second motor, a connecting pipe is symmetrically arranged on the upper surface of the partition plate, and a sealing box is arranged on the front surface of the movable plate, the pressure sensors electrically connected with the control panel are installed inside the sealing box, pressure relief pipes matched with the connecting pipes one by one are symmetrically installed below the sealing box, and adjusting assemblies are arranged inside the pressure relief pipes;

the adjusting part comprises a spring fixedly installed inside the pressure relief pipe, a blocking ball is installed at the other end of the spring, a rubber plug matched with the blocking ball is installed at a position close to the lower end inside the pressure relief pipe, and an insertion pipe matched with the pressure relief pipe is installed at the upper end of the connecting pipe.

As a further aspect of the present invention: the intubation tube is a component with a conical structure, and through holes are uniformly formed in the intubation tube.

As a further aspect of the present invention: the inside symmetry of box has seted up the slide rail, the dorsal part of fly leaf is installed and is slided connection's slider with the slide rail.

As a further aspect of the present invention: bellows are all installed to the both sides of box, and the inner wall symmetry of box set up with the ventilation window of bellows adaptation, evenly install the fin on the seal box.

As a further aspect of the present invention: the front surface of the box body is hinged with a closing door, and a glass observation window is arranged on the closing door.

As a further aspect of the present invention: the outside of connecting pipe is located the position department of baffle and installs sealed the pad, sealed pad, rubber end cap and stifled ball are the component of a rubber material.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of simple structure, novel design, detect the inside atmospheric pressure of seal box and will detect data transfer to control panel through pressure sensor, make first motor work through control panel, thereby make the threaded rod rotate, make the fly leaf drive seal box up-and-down motion through threaded connection, thereby make pressure release pipe and connecting pipe insert and close, setting through the intubate, make stifled ball and rubber end cap separation, thereby make pressure release pipe and connecting pipe intercommunication, drive fan work through the second motor, thereby be favorable to extracting the inside gas of seal box, be favorable to the pressure release of seal box, thereby avoid the explosion of equipment, the security performance that improve equipment used.

Drawings

Fig. 1 is a schematic structural diagram of a safe explosion-proof low-voltage switch cabinet;

FIG. 2 is a schematic diagram of the internal structure of a safe and explosion-proof low-voltage switch cabinet middle box body;

fig. 3 is an enlarged schematic structural diagram of a safe and explosion-proof low-voltage switchgear at a in fig. 2.

In the figure: 1. a base; 2. a box body; 3. closing the door; 4. an air box; 5. an equipment box; 6. a control panel; 7. an air duct; 8. a sealing box; 9. a movable plate; 10. a pressure sensor; 11. a first motor; 12. a threaded rod; 13. a ventilation window; 14. a partition plate; 15. a second motor; 16. a fan; 17. an air duct; 18. a slide rail; 19. a pressure relief pipe; 20. a rubber plug; 21. blocking the ball; 22. a spring; 23. a connecting pipe; 24. a gasket; 25. and (4) inserting a tube.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, a safe and explosion-proof low-voltage switch cabinet comprises a base 1, an air duct 7 is uniformly arranged inside the base 1, a box body 2 is mounted on the upper surface of the base 1, a control panel 6 is mounted on the front surface of the box body 2 near the upper end, an equipment box 5 is mounted on the upper surface of the box body 2, a first motor 11 is mounted inside the equipment box 5, a threaded rod 12 is mounted on the output end of the first motor 11, a partition plate 14 is mounted inside the box body 2 near the lower end, a movable plate 9 in threaded connection with the threaded rod 12 is slidably mounted inside the box body 2 above the partition plate 14, air pipes 17 communicated with the air duct 7 are uniformly mounted below the partition plate 14 on the box body 2, a second motor 15 is mounted below the partition plate 14 on the bottom of the box body 2, and a fan 16 is mounted on the output end of the second motor 15, the upper surface of the partition plate 14 is symmetrically provided with connecting pipes 23, the front surface of the movable plate 9 is provided with a seal box 8, the inside of the seal box 8 is provided with pressure sensors 10 electrically connected with the control panel 6, pressure relief pipes 19 matched with the connecting pipes 23 one by one are symmetrically arranged below the seal box 8, the inside of the pressure relief pipes 19 is provided with an adjusting component, the air pressure inside the hermetic container 8 is detected by the pressure sensor 10 and the detected data is transmitted to the control panel 6, the first motor 11 is operated by the control panel 6, thereby leading the threaded rod 12 to rotate, leading the movable plate 9 to drive the seal box 8 to move up and down through threaded connection, under the sliding connection between the sliding rail 18 and the sliding groove, the sealing box 8 is favorably pulled to move, so that the pressure relief pipe 19 is inserted into the connecting pipe 23, the pressure relief of the sealing box 8 is favorably realized, the explosion of equipment is avoided, and the use safety performance of the equipment is improved;

the adjusting part includes spring 22 of fixed mounting inside the pressure release pipe 19, stifled ball 21 is installed to spring 22's the other end, the inside of pressure release pipe 19 is close to lower extreme position department and installs the rubber end cap 20 with stifled ball 21 adaptation, the intubate 25 with 19 adaptations of pressure release pipe is installed to the upper end of connecting pipe 23, setting through the toper structure of intubate 25 and through-hole, make stifled ball 21 and the separation of rubber end cap 20, thereby make pressure release pipe 19 and connecting pipe 23 intercommunication, when pressure release pipe 19 and connecting pipe 23 separation, make stifled ball 21 and the 20 blocks of rubber end cap through setting up of spring 22, thereby be favorable to the sealed of seal box 8, with the normal work of the inside electronic component of assurance seal box 8.

In fig. 3, the insertion tube 25 is a member with a conical structure, and through holes are uniformly formed in the insertion tube 25, so that the plug ball 21 is separated from the rubber plug 20 by the conical structure of the insertion tube 25 and the arrangement of the through holes, and the pressure relief tube 19 is communicated with the connection tube 23.

In fig. 2, slide rails 18 are symmetrically disposed inside the box body 2, a slide block slidably connected with the slide rails 18 is mounted on the back side of the movable plate 9, and the slide rails 18 and the slide grooves are slidably connected to facilitate the movement of the sealed box 8.

In fig. 1 and 2, bellows 4 are all installed to the both sides of box 2, and box 2's inner wall symmetry offer with the ventilation window 13 of bellows 4 adaptation, evenly install the fin on the seal box 8, through bellows 4, connecting pipe 23, fan 16, tuber pipe 17 and wind channel 7's setting, be favorable to accelerating the air flow of box 2 inside, thereby make the radiating effect of fin increase substantially, be favorable to the inside cooling of equipment, thereby avoid equipment ageing, the life of extension equipment.

In fig. 1, a closing door 3 is hinged to the front surface of a box body 2, and a glass observation window is arranged on the closing door 3, so that the internal condition of the equipment can be observed and maintained conveniently.

In fig. 3, a gasket 24 is mounted on the outer side of the connecting pipe 23 at the position of the partition 14, and the gasket 24, the rubber plug 20 and the ball plug 21 are all made of one rubber material, so that the sealing effect of the sealing box 8 is improved.

The utility model discloses a theory of operation is: when the pneumatic sealing box is used, the pressure sensor 10 detects the air pressure inside the sealing box 8 and transmits the detected data to the control panel 6, the control panel 6 enables the first motor 11 to work, so that the threaded rod 12 rotates, the movable plate 9 drives the sealing box 8 to move up and down through threaded connection, the sliding connection between the sliding rail 18 and the sliding groove is favorable for pulling the sealing box 8 to move, so that the pressure relief pipe 19 is inserted into the connecting pipe 23, the plugging ball 21 is separated from the rubber plug 20 through the conical structure of the insertion pipe 25 and the arrangement of the through hole, so that the pressure relief pipe 19 is communicated with the connecting pipe 23, the second motor 15 drives the fan 16 to work, so that the gas inside the sealing box 8 is favorable for extracting, the pressure relief of the sealing box 8 is favorable, the explosion of equipment is avoided, the safety performance of the equipment is improved, and in addition, when the pressure relief pipe 19 is separated from the connecting pipe 23, make stifled ball 21 and the block of rubber end cap 20 block through the setting of spring 22, thereby be favorable to the sealed of seal box 8, with the normal work of the inside electronic component of assurance seal box 8, at this in-process, through bellows 4, connecting pipe 23, fan 16, the setting of tuber pipe 17 and wind channel 7, be favorable to accelerating the air flow of 2 insides of box, thereby make the radiating effect of fin increase substantially, be favorable to the inside cooling of equipment, thereby avoid equipment ageing, the life of extension equipment.

The above-mentioned, 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. The safe and explosion-proof low-voltage switch cabinet comprises a base (1) and is characterized in that an air duct (7) is uniformly arranged in the base (1), a box body (2) is arranged on the upper surface of the base (1), a control panel (6) is arranged on the front surface of the box body (2) close to the upper end position, an equipment box (5) is arranged on the upper surface of the box body (2), a first motor (11) is arranged in the equipment box (5), a threaded rod (12) is arranged at the output end of the first motor (11), a partition plate (14) is arranged on the box body (2) close to the lower end position, a movable plate (9) connected with the threaded rod (12) in a sliding mode is arranged above the partition plate (14) in the box body (2), an air pipe (17) communicated with the air duct (7) is uniformly arranged below the partition plate (14) in the box body (2), a second motor (15) is mounted at the bottom of the box body (2) and below the partition plate (14), a fan (16) is mounted at the output end of the second motor (15), connecting pipes (23) are symmetrically mounted on the upper surface of the partition plate (14), a sealing box (8) is mounted on the front surface of the movable plate (9), pressure sensors (10) electrically connected with the control panel (6) are mounted inside the sealing box (8), pressure relief pipes (19) matched with the connecting pipes (23) one by one are symmetrically mounted below the sealing box (8), and adjusting components are arranged inside the pressure relief pipes (19);

the adjusting part comprises a spring (22) fixedly installed inside the pressure relief pipe (19), a blocking ball (21) is installed at the other end of the spring (22), a rubber plug (20) matched with the blocking ball (21) is installed at the position, close to the lower end, inside the pressure relief pipe (19), and an insertion pipe (25) matched with the pressure relief pipe (19) is installed at the upper end of the connecting pipe (23).

2. A safe and explosion-proof low-voltage switch cabinet according to claim 1, wherein the insertion tube (25) is a member with a conical structure, and through holes are uniformly formed in the insertion tube (25).

3. A safe and explosion-proof low-voltage switch cabinet according to claim 1, characterized in that slide rails (18) are symmetrically arranged inside the box body (2), and a slide block slidably connected with the slide rails (18) is installed on the back side of the movable plate (9).

4. A safe and explosion-proof low-voltage switch cabinet according to claim 1, characterized in that air bellows (4) are installed on both sides of the box body (2), ventilation windows (13) matched with the air bellows (4) are symmetrically formed in the inner wall of the box body (2), and cooling fins are uniformly installed on the sealing box (8).

5. A safe and explosion-proof low-voltage switch cabinet according to claim 1, characterized in that the front surface of the cabinet body (2) is hinged with a closing door (3), and a glass observation window is arranged on the closing door (3).

6. A safe and explosion-proof low-voltage switch cabinet according to claim 1, wherein a sealing gasket (24) is installed at the position of the partition (14) outside the connecting pipe (23), and the sealing gasket (24), the rubber plug (20) and the ball plug (21) are all rubber components.