CN217984124U - A New Type of Low Voltage Withdrawable Switchgear - Google Patents

Abstract

The utility model belongs to the technical field of electric power, and a novel low pressure pull-out type cubical switchboard is disclosed, which comprises an outer shell, the top fixed mounting of the inside front end of shell has the fixed block, the inside left end fixed mounting of fixed block has the spring, the right side movable mounting of spring has movable fixture block, the inside front end fixed mounting of shell has the fixed axle. The utility model discloses a be provided with the drawer, the purpose of auto-eject has been reached such as apron and elastic sheet, the gland plate, when the apron breaks away from the inside of fixed block, the elastic sheet will reset, it is rotatory to drive the gear when driving the loose axle rotation, make the drawer release the inside of shell, make it reach auto-eject's effect, when wind gets into the inside of tuber pipe, will cool down wind when the water storage box is inside, make the inside cooling effect to the shell better, discharge through the top of shell, make it reach the effectual purpose of cooling.

Description

A New Type of Low Voltage Withdrawable Switchgear

technical field

The utility model belongs to the technical field of electric power, in particular to a novel low-voltage withdrawable switch cabinet.

Background technique

GCK low-voltage withdrawable switchgear is widely used in power distribution centers PC and motor control centers MCC in power plants, substations, factories and mines and high-rise buildings, as AC 50-60Hz, rated working voltage is 660V and below, rated current is Low-voltage complete power distribution equipment for power distribution, centralized motor control, and reactive power compensation in 4000A and below power generation and power supply systems.

The existing low-voltage withdrawable switchgear cannot be automatically ejected, and the switchgear needs to be pulled out manually. When the operator holds maintenance and inspection tools, it is not convenient to pull out the switchgear. The traditional low-voltage withdrawable switchgear has a simple structure. It is easy to be damaged and the service life of the equipment is low.

The existing low-voltage withdrawable switchgear will generate high temperature when working for a long time. The switchgear is indoors and cannot be well ventilated. The high internal temperature will easily cause the wires to soften and cause accidents. maintenance costs.

Utility model content

The purpose of this utility model is to solve the above problems. The utility model provides a new type of low-voltage draw-out switchgear, which has the advantages of automatic ejection and good cooling effect.

In order to achieve the above purpose, the utility model provides the following technical solutions: a new low-voltage withdrawable switchgear, including a housing, a fixed block is fixedly installed on the top of the front end inside the housing, and a spring is fixedly installed on the left end of the fixed block. The right side of the spring is movably equipped with a movable block, and the front end inside the housing is fixedly installed with a fixed shaft, and the left and right ends of the fixed shaft are respectively fixedly sleeved with elastic pieces, and the outsides of the two elastic pieces are respectively A movable shaft is movably socketed, and a gear is fixedly installed on the inner side of the movable shaft, and a cover plate is movably installed on the left side of the movable shaft, and a bayonet assembly is fixedly installed on the upper end of the middle part of the back of the cover plate. The upper end activity is installed with drawer.

As a preferred technical solution of the present utility model, a motor is fixedly installed on the top of the housing, an air duct is fixedly installed at the lower end inside the housing, and a filter screen is movably installed at the bottom inside the housing. The inside of the cabinet is cooled. When the temperature inside the switch cabinet is high, the fan of the output shaft is driven by the motor to rotate. At this time, the wind enters the inside of the casing through the air duct at the bottom of the casing and is discharged through the top of the casing.

As a preferred technical solution of the present utility model, the surface of the filter screen is provided with a circular hole, the bottom of the air duct is fan-shaped, and the inside of the shell is divided into a switch cabinet and a water storage tank. The middle part of the pipe hovers inside the water storage tank. This design can better cool down the inside of the shell. When the motor is working, the air is drawn through the bottom of the air pipe. When the wind passes through the inside of the air pipe, the inside of the water storage tank The water cools the wind, so that the cooling effect on the inside of the shell is better.

As a preferred technical solution of the present utility model, the two elastic sheets are made of iron material and are ring-shaped, the inner sides of the two elastic sheets are fixed on the surface of the fixed shaft, and the two elastic sheets The outer side of the movable shaft is fixed on the inside of the movable shaft, and the movable shaft is movably socketed on the surface of the fixed shaft, so that the design can realize automatic opening of the cabinet door. By pressing the cover plate, the elastic piece inside the movable shaft will reset and drive the cover The plate rotates to make the cover open, close the cabinet door to lift the cover, the two elastic pieces inside the movable shaft will rotate with the movable shaft, and the two elastic pieces will be compressed.

As a preferred technical solution of the present invention, the middle part of the bottom of the drawer is provided with a gear bar, and the middle part of the fixed shaft is movably equipped with a gear, and the top of the gear meshes with the gear bar at the bottom of the drawer. There is a rectangular hole in the interior, and the gear is driven by the rotation of the movable shaft. At this time, the gear will drive the drawer to move forward, and the drawer will slide on the left and right sides of the inside of the shell. When the cover is opened, the drawer will follow the gear to pop up. The effect of automatic pop-up.

As a preferred technical solution of the present invention, the bayonet assembly includes a bayonet and a sliding block, the sliding block slides on the rear end of the bayonet, the sliding block is an arc-shaped ring, and the bayonet The rear end is arc-shaped, so that the cover can be fixed by this design. When the cover is clamped inside the circular hole of the fixed block, the movable block will fix the rear end of the bayonet assembly. When it needs to be opened, this Then press the cover again, so that the sliding block in the middle of the bayonet assembly squeezes the movable bayonet to the left, while the sliding block will be located at the rear end of the bayonet assembly, and the cover will be pushed out through the arc of the sliding block.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model achieves the purpose of automatic pop-up by being provided with drawers, cover plates and elastic sheets. The cover plate and bayonet assembly will move backward, and the sliding block will squeeze the movable block while moving. , so that the movable block moves to the left. At this time, the sliding block is located at the rear end of the bayonet assembly, and the cover will be released. The sliding block in the middle of the bayonet assembly will squeeze the movable block to move to the left, and the spring will be compressed. , at this time the cover plate will be separated from the inside of the fixed block. When the cover plate is separated from the inside of the fixed block, the elastic sheet will be reset, driving the movable shaft to rotate and driving the gear to rotate at the same time. The drawer on the top of the gear follows through the gear bar at the bottom. Moving, the drawer is pushed out from the inside of the casing, so that the effect of automatic ejection is achieved.

2. The utility model achieves the purpose of good cooling effect by being equipped with a motor, a filter screen and an air duct. When the temperature inside the shell is high, the motor is used to draw air from the bottom of the air duct, and the filter screen will remove larger debris. Filter to prevent debris from entering the inside of the shell, while keeping the inside of the shell dust-free. When the wind enters the inside of the air duct, the inside of the water storage tank will cool the wind, making the cooling effect on the inside of the shell better. It is discharged through the top of the shell, so that it achieves the purpose of good cooling effect.

Description of drawings

Fig. 1 is a schematic view of the structure appearance of the utility model;

Fig. 2 is the schematic diagram of the right section of the structure of the utility model;

Fig. 3 is a top view sectional schematic diagram of the utility model structure drawer;

Fig. 4 is the schematic diagram of the front section of the utility model structure drawer;

Fig. 5 is a schematic diagram of a drawer looking up from the structure of the utility model;

Fig. 6 is a schematic diagram of the appearance of the structural air duct of the present utility model.

In the figure: 1. shell; 2. cover plate; 3. motor; 4. filter; 5. fixed shaft; 6. drawer; 7. air duct; 8. fixed block; 9. spring; 10. movable block; 11. Elastic sheet; 12. Active shaft; 13. Gear; 14. Bayonet assembly.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 6, the utility model provides a new type of low-voltage withdrawable switchgear, including a housing 1, a fixed block 8 is fixedly installed on the top of the inner front end of the housing 1, and a spring 9 is fixedly installed on the left end of the fixed block 8. , the right side of the spring 9 is movably installed with a movable block 10, the front end inside the housing 1 is fixedly installed with a fixed shaft 5, and the left and right ends of the fixed shaft 5 are respectively fixedly sleeved with elastic pieces 11, and the outsides of the two elastic pieces 11 are respectively A movable shaft 12 is movably socketed, a gear 13 is fixedly mounted on the inner side of the movable shaft 12, a cover plate 2 is movably installed on the left side of the movable shaft 12, and a bayonet assembly 14 is fixedly mounted on the upper end of the middle part of the back of the cover plate 2, and inside the housing 1 Drawer 6 is installed movablely on the upper end.

Among them, the motor 3 is fixedly installed on the top of the casing 1, the air duct 7 is fixedly installed at the lower end inside the casing 1, and the filter screen 4 is movably installed at the bottom inside the casing 1, so that the design can cool down the inside of the switch cabinet. When the temperature is high, the fan of the output shaft is driven by the motor 3 to rotate. At this time, the wind enters the inside of the casing 1 through the air duct 7 at the bottom of the casing 1, and is discharged through the top of the casing 1.

Wherein, the surface of the filter screen 4 is provided with a circular hole, the bottom of the air duct 7 is fan-shaped, the inside of the shell 1 is divided into a switch cabinet and a water storage tank, and the middle part of the air duct 7 is hovering in the inside of the water storage tank. The inside of the housing 1 can be cooled better. When the motor 3 is working, the air is pumped through the bottom of the air duct 7. When the wind passes through the inside of the air duct 7, the water in the water storage tank cools the wind, so that the air is cooled. The cooling effect inside the casing 1 is better.

Wherein, the two elastic sheets 11 are made of iron material and are ring-shaped, the inner sides of the two elastic sheets 11 are fixed on the surface of the fixed shaft 5, and the outer sides of the two elastic sheets 11 are fixed on the inside of the movable shaft 12. The shaft 12 is movably socketed on the surface of the fixed shaft 5, so that the design can realize the automatic opening of the cabinet door. By pressing the cover plate 2, the elastic piece 11 inside the movable shaft 12 will be reset, which will drive the cover plate 2 to rotate, so that the cover The plate 2 is opened, the cabinet door is closed and the cover plate 2 is lifted, the two elastic sheets 11 inside the movable shaft 12 will rotate along with the movable shaft 12, and the two elastic sheets 11 will be compressed.

Wherein, the middle part of the bottom of the drawer 6 is provided with a gear bar, and the middle part of the fixed shaft 5 is movably equipped with a gear 13, and the top of the gear 13 meshes with the gear bar at the bottom of the drawer 6, and the inside of the drawer 6 is provided with a rectangular hole, which is rotated by the movable shaft 12. Drive the gear 13 to rotate. At this time, the gear 13 will drive the drawer 6 to move forward, and the drawer 6 will slide on the left and right sides inside the casing 1. When the cover plate 2 is opened, the drawer 6 will follow the gear 13 to pop up, achieving automatic pop-up effect.

Wherein, bayonet assembly 14 comprises bayonet and sliding block, and sliding block slides on the rear end of bayonet, and sliding block is arc-shaped ring, and the rear end of bayonet is arc-shaped, and this design can fix cover plate 2, When the cover plate 2 is clamped inside the circular hole of the fixed block 8, the movable clamp block 10 will fix the rear end of the detent assembly 14. When it needs to be opened, press the cover plate 2 again at this time to make the detent The sliding block in the middle of the assembly 14 squeezes the movable locking block 10 to the left, while the sliding block will be located at the rear end of the bayonet assembly 14, and the cover plate 2 will be pushed out through the arc of the sliding block.

Working principle and application process of the utility model:

When it is necessary to overhaul and maintain the equipment inside the housing 1, the cover plate 2 will be pressed at this time, and the bayonet assembly 14 will move backward. The block 10 moves to the left, and now the sliding block is positioned at the rear end of the bayonet assembly 14, and the cover plate 2 will be released, and the sliding block in the middle of the bayonet assembly 14 will squeeze the movable block 10 to move to the left, and the spring 9 will Compressed, at this time the cover plate 2 will break away from the inside of the fixed block 8, and when the cover plate 2 breaks away from the inside of the fixed block 8, the elastic sheet 11 will reset, and will drive the gear 13 to rotate while driving the movable shaft 12, and the gear 13 The drawer 6 on the top moves along with the gear bar at the bottom, so that the drawer 6 is pushed out of the shell 1. When the maintenance is completed, the cover plate 2 will be lifted to drive the movable shaft 12 to rotate with the elastic piece 11 inside, and the elastic piece 11 will be compressed, and the cover plate 2 is fixed by the movable block 10. When the movable shaft 12 rotates, the gear 13 pushes the drawer 6 to the inside of the shell 1. When the equipment inside the shell 1 is working for a long time, the inside of the shell 1 The temperature is high, and the motor 3 is used to draw air from the bottom of the air duct 7. The filter screen 4 filters the larger debris to prevent the debris from entering the inside of the shell 1. When the wind enters the inside of the air duct 7, the water storage tank The inside will cool down the wind, so that the cooling effect on the inside of the shell 1 is better, and it is discharged through the top of the shell 1 .

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A new type of low-voltage withdrawable switchgear, including a casing (1), characterized in that: a fixed block (8) is fixedly installed on the top of the inner front end of the casing (1), and the left end of the fixed block (8) is A spring (9) is fixedly installed, and a movable block (10) is movably installed on the right side of the spring (9), and a fixed shaft (5) is fixedly installed on the front end inside the housing (1), and the fixed shaft ( 5) Elastic sheets (11) are fixedly socketed at the left and right ends of the outside respectively, and the outsides of the two elastic sheets (11) are respectively movably socketed with movable shafts (12), and the inner sides of the movable shafts (12) are fixedly installed There is a gear (13), a cover plate (2) is movably installed on the left side of the movable shaft (12), and a bayonet assembly (14) is fixedly installed on the upper end of the middle part of the back of the cover plate (2). 1) A drawer (6) is installed on the upper end of the interior. 2. A new type of low-voltage withdrawable switchgear according to claim 1, characterized in that: a motor (3) is fixedly installed on the top of the housing (1), and a motor (3) is fixedly installed on the lower end inside the housing (1). In the air duct (7), a filter screen (4) is movably installed at the bottom inside the casing (1). 3. A new type of low-voltage withdrawable switchgear according to claim 2, characterized in that: the surface of the filter (4) is provided with a circular hole, the bottom of the air duct (7) is fan-shaped, The inside of the casing (1) is divided into a switch cabinet and a water storage tank, and the middle part of the air duct (7) is hovering inside the water storage tank. 4. A new type of low-voltage withdrawable switchgear according to claim 1, characterized in that: the two elastic sheets (11) are made of iron and are ring-shaped, and the two elastic sheets ( The inner side of 11) is fixed on the surface of the fixed shaft (5), the outer sides of the two elastic sheets (11) are fixed on the inside of the movable shaft (12), and the movable shaft (12) is movably socketed on the fixed shaft (5 )s surface. 5. A new type of low-voltage withdrawable switchgear according to claim 1, characterized in that: the middle part of the bottom of the drawer (6) is provided with a gear bar, and the middle part of the fixed shaft (5) is movably installed with a gear ( 13), the top of the gear (13) meshes with the gear bar at the bottom of the drawer (6), and a rectangular hole is opened inside the drawer (6). 6. A new type of low-voltage withdrawable switchgear according to claim 1, characterized in that: the bayonet assembly (14) includes a bayonet and a sliding block, and the sliding block slides on the rear end of the bayonet, so The sliding block is in the shape of an arc ring, and the rear end of the bayonet is in the shape of an arc.

Images