Low-voltage draw-out type switchgear

Abstract

The utility model provides a low-voltage draw-out type switch device, which comprises a switch device, a dustproof box and a plurality of supporting mechanisms respectively arranged on two sides of the switch device, a plurality of drawer boxes are movably arranged at the front end of the switch device, side plates are arranged on two sides of each drawer box, each supporting mechanism comprises a first telescopic rod, a second telescopic rod is movably arranged in the first telescopic rod, and the second telescopic rod is arranged in the dustproof box. A mounting groove is formed in the bottom of the switch equipment in a front-back penetrating mode, a dustproof box is detachably mounted in the mounting groove, a plurality of ventilation holes are formed in the front wall and the rear wall of the dustproof box, a flow guide plate is arranged in the middle of the dustproof box, and dust sticking stickers are arranged on the surface of the flow guide plate and the surface of the inner wall of the dustproof box. According to the utility model, the drawer can be effectively supported through the supporting mechanism, the declination phenomenon caused by forward movement of the gravity center after the drawer is drawn out is avoided, external dust is prevented from entering the switch device from the ventilation hole through the dustproof box, the internal part of the switch device is kept clean, and the influence of the dust on the internal part of the switch device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of switchgear, and particularly relates to a low-voltage draw-out switchgear. Background Art

[0002] The low-voltage draw-out switchgear is an electrical device mainly used in the low-voltage power distribution system. It consists of a metal-enclosed shell and various electrical components installed inside, such as circuit breakers, relays, measuring instruments, etc. The characteristic of this device is that each functional unit can be conveniently drawn out and pushed in, which is convenient for maintenance and replacement without affecting the operation of other circuits. It is widely used in the power distribution, control, and protection of industrial, commercial, and civil buildings.

[0003] In order to facilitate the maintenance of the equipment in the drawer, the drawer needs to be pulled out during maintenance. However, when the drawer is pulled out as far as possible, the center of gravity of the drawer moves forward and the front end tilts downward, which may lead to the drawer falling easily and affecting the electrical safety; and currently, in order to dissipate heat inside the switchgear, heat dissipation holes are usually provided. However, external dust is easy to enter the switchgear through the heat dissipation holes, resulting in dust accumulation inside the switchgear. This not only makes it inconvenient to clean, but also the dust is easy to affect the internal components of the switchgear, which is not conducive to use. Content of the Utility Model

[0004] The utility model aims to provide a low-voltage draw-out switchgear to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A low-voltage draw-out switchgear includes a switchgear, a dust-proof box, and a plurality of support mechanisms respectively arranged on both sides of the switchgear. A plurality of drawer boxes are movably arranged at the front end of the switchgear. Side plates are arranged on both sides of the drawer box. The support mechanism includes a first telescopic rod, and a second telescopic rod is movably arranged inside the first telescopic rod. The front part of the second telescopic rod is connected to the rear part of the side plate. An installation groove runs through the front and rear of the bottom of the switchgear, and the dust-proof box is detachably installed in the installation groove. A plurality of ventilation holes are arranged on the front wall and the rear wall of the dust-proof box. A diversion plate is arranged in the middle of the dust-proof box, and dust-catching stickers are arranged on the surface of the diversion plate and the inner wall surface of the dust-proof box.

[0007] Preferably, a plurality of through holes are arranged on the inner bottom wall surface of the drawer box.

[0008] Preferably, a connecting nut is arranged at the rear part of the side plate, and a connecting screw is arranged at the front end of the second telescopic rod. The connecting screw is screwed with the connecting nut.

[0009] Preferably, the first telescopic rod is fixedly arranged on the side wall of the switchgear.

[0010] Preferably, dust-proof nets are provided in a plurality of ventilation holes.

[0011] Advantageous effects

[0012] One or more of the above technical solutions in the low-voltage draw-out switchgear provided by the embodiments of the present utility model have at least one of the following technical effects:

[0013] Through the above technical solutions of the present utility model, the support mechanism can effectively support the drawer box. When the drawer box is drawn out, the second telescopic rod extends out simultaneously with the drawer box. The structure of the first telescopic rod and the second telescopic rod supports both sides of the drawer box, thereby being able to solve the problem that the center of gravity of the drawer box moves forward and tilts downward after being drawn out, resulting in the drawer box being prone to falling and affecting the safety of electricity use; through the dust-proof box, external air enters the dust-proof box from the ventilation holes, the dust in the air is filtered by the dust-proof net, and the air is upwardly deflected by the deflector plate inside the dust-proof box. The air enters the drawer through the through holes for air exchange and heat dissipation. When the air passes through the surfaces of the dust-proof box and the deflector plate, the fine dust that cannot be filtered by the dust-proof net in the air will be adhered by the dust sticker, thereby preventing dust from entering the switchgear, keeping the inside of the switchgear clean, and avoiding the influence of dust on the inside of the switchgear. Description of the drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the installation structure of the dust-proof box of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the dust-proof box of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the drawer box of the present utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the support mechanism of the present utility model;

[0019] Figure 6 It is a schematic diagram of the structure when the drawer box of the present utility model is drawn out;

[0020] The corresponding relationship between the labels in the drawings and the component names is as follows:

[0021] 1, switchgear; 2, dust-proof box; 3, support mechanism; 4, drawer box; 5, side plate; 6, first telescopic rod; 7, second telescopic rod; 8, installation groove; 9, ventilation hole; 10, deflector plate; 11, dust sticker; 12, through hole; 13, connecting nut; 14, connecting screw; 15, dust-proof net. Specific embodiments

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] As Figures 1-6 shown, it is a schematic structural diagram of a low-voltage draw-out switchgear according to a preferred embodiment of the present utility model;

[0026] In this embodiment, it includes a switch device 1, a dust-proof box 2, and a number of support mechanisms 3 respectively arranged on both sides of the switch device 1. A number of drawer boxes 4 are movably arranged at the front end of the switch device 1, and the number of drawer boxes 4 can all be pulled out forward. Side plates 5 are fixedly welded on both sides of the drawer box 4. The support mechanism 3 includes a first telescopic rod 6. A second telescopic rod 7 is movably arranged inside the first telescopic rod 6. The front part of the second telescopic rod 7 is fixedly connected to the rear part of the side plate 5. An installation groove 8 runs through the front and rear of the bottom of the switch device 1. The dust-proof box 2 is detachably installed in the installation groove 8. The front and rear parts of the dust-proof box 2 expose the front and rear parts of the bottom of the switch device 1. A number of ventilation holes 9 are provided on both the front wall and the rear wall of the dust-proof box 2. External air can enter through the ventilation holes 9 at the front of the dust-proof box 2 or the ventilation holes 9 at the rear of the dust-proof box 2 respectively. The hot air inside the switch device 1 can be discharged through the ventilation holes 9 at the front of the dust-proof box 2 or the ventilation holes 9 at the rear of the dust-proof box 2 respectively. A flow guide plate 10 is arranged in the middle of the dust-proof box 2. The flow guide plate 10 is perpendicular to the inner bottom wall of the dust-proof box 2. Dust sticking stickers 11 are provided on both the surface of the flow guide plate 10 and the inner wall surface of the dust-proof box 2. The fine dust that cannot be filtered by the dust-proof net 15 in the air is adhered by the dust sticking stickers 11.

[0027] In this embodiment, a number of through holes 12 are provided on the surface of the inner bottom wall of the drawer box 4. The number of through holes 12 are arranged in an array, and air enters the drawer box 4 through the number of through holes 12.

[0028] In this embodiment, a connecting nut 13 is welded on the surface of the rear part of the side plate 5. A connecting screw 14 is provided at the front end of the second telescopic rod 7. The connecting screw 14 is screwed with the connecting nut 13. The connection between the support mechanism 3 and the drawer box 4 is realized through this structure.

[0029] In this embodiment, the first telescopic rod 6 is fixedly arranged on the side wall of the switch device 1 by screws. A number of first telescopic rods are arranged vertically.

[0030] In this embodiment, dust-proof nets 15 are provided in a number of ventilation holes 9. Part of the dust in the air is filtered by the dust-proof nets 15.

[0031] Principle of the present utility model:

[0032] Through the support mechanism 3, the drawer box 4 can be effectively supported. When the drawer box 4 is pulled out, the second telescopic rod 7 extends simultaneously with the drawer box 4. The structures of the first telescopic rod 6 and the second telescopic rod 7 support both sides of the drawer box 4, thereby solving the problem that the center of gravity of the drawer box 4 moves forward and causes the drawer box 4 to tilt downward after being pulled out, resulting in the easy fall of the drawer box 4 and affecting the electrical safety. Through the dust-proof box 2, the outside air enters the dust-proof box 2 through the ventilation holes, and the dust in the air is filtered by the dust-proof net 15. The air is guided upward by the flow guide plate 10 inside the dust-proof box 2, and the air enters the drawer box 4 through the through holes 12 for air exchange and heat dissipation. When the air passes through the surfaces of the dust-proof box 2 and the flow guide plate 10, the fine dust that cannot be filtered by the dust-proof net 15 in the air will be adhered by the dust sticking sticker 11, improving the dust-proof effect.

[0033] A low-voltage draw-out switchgear of the present utility model has an installation method, a connection method or a setting method that are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0034] The technologies not described in detail in the present utility model are all well-known technologies. Those skilled in the art can easily implement the present utility model on the basis of understanding this specification, and the content shown in the drawings is a part of this specification.

[0035] The above content further elaborates on the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. A low-voltage withdrawable switchgear, comprising a switchgear (1), a dustproof box (2), and a plurality of supporting mechanisms (3) respectively arranged on both sides of the switchgear (1), characterized in that: The switch device (1) is provided with a plurality of drawer boxes (4) at the front end thereof, and side panels (5) are provided on both sides of the drawer boxes (4). The support mechanism (3) comprises a first telescopic rod (6), and a second telescopic rod (7) is provided inside the first telescopic rod (6), and the front part of the second telescopic rod (7) is connected to the rear part of the side panel (5). The bottom of the switch device (1) is provided with a mounting groove (8) at the front and rear, and the dustproof box (2) is detachably installed in the mounting groove (8). The front wall and the rear wall of the dustproof box (2) are provided with a plurality of ventilation holes (9). A guide plate (10) is provided in the middle of the dustproof box (2), and dust-sticking stickers (11) are provided on the surface of the guide plate (10) and the inner wall surface of the dustproof box (2).

2. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The inner bottom wall surface of the drawer box (4) is provided with a plurality of through holes (12).

3. A low-voltage withdrawable switchgear according to claim 1, characterized in that: A connecting nut (13) is provided at the rear of the side plate (5), and a connecting screw (14) is provided at the front end of the second telescopic rod (7), and the connecting screw (14) is threadedly connected to the connecting nut (13).

4. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The first telescopic rod (6) is fixedly arranged on the side wall of the switch device (1).

5. A low-voltage withdrawable switchgear according to claim 1, characterized in that: Dust-proof nets (15) are arranged in each of the ventilation holes (9).

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