CN107706767A - Maintenance power box - Google Patents

Abstract

The present invention relates to electric power overhaul equipment technical field, more particularly to a kind of maintenance power box, including casing and wiring hole and rain cover on casing.Casing, have one located at the positive chamber door that can be opened and/or close relative to casing of casing.Wiring hole, on the chamber door, cabinets cavity is connected to through reconfiguration string holes suitable for maintenance feed cable.Rain cover, on the chamber door outer surface and suitable for covering on the wiring hole.

Description

Overhaul the power box

technical field

The invention relates to the technical field of electric power maintenance equipment, in particular to a power supply box for maintenance.

Background technique

In some construction sites or on-site construction sites, when the equipment has problems and needs to be repaired but there are not enough repair conditions, the use of the repair power box can greatly facilitate the repair of the equipment. The maintenance power box is designed for the convenience of maintenance. The maintenance power box has a great effect on protecting the power supply and has functions of overload protection, short circuit protection and leakage protection.

The front part of the maintenance power box installed in most existing substations is equipped with a whole power box door. When working, the maintenance cable must be connected to the maintenance power box, so that the whole power box door cannot be closed and cannot reach the inside of the sealed box. Due to the influence of the environment, the internal equipment is exposed outside, and external moisture and rainwater enter the power box, which will affect the insulation of the equipment in the box, and in severe cases, it will cause a short circuit to ground. If the ambient temperature is too low or encounters rainy and snowy weather, it will also cause the heating and dehumidification device in the box to run continuously for a long time, which will eventually cause the heating and dehumidification device in the box to break down. If small animals enter, there will be hidden dangers of accidents. In case of bad weather such as rain and snow, it may also cause a short circuit of the power supply, endanger the substation transformer, and even affect the safe and stable operation of the substation.

In view of the above-mentioned problems, a maintenance power supply box is designed so that the door can be closed when the maintenance cable is connected to the maintenance power supply box, so that the inside of the box is relatively sealed.

Contents of the invention

The purpose of the present invention is to provide a maintenance power supply box to solve the technical problem that the box door can be closed when the maintenance cable is connected to the maintenance power supply box.

The present invention overhauls power box and realizes like this:

A maintenance power box, comprising:

The box body has a box door that can be opened and/or closed relative to the box body at the front of the box body;

A wiring hole is provided on the box door, and is suitable for the maintenance power cable to pass through the wiring hole and be connected to the inner cavity of the box; and

The rainproof cover is arranged on the outer surface of the box door and is suitable for covering the wiring hole.

Further, the rainproof cover includes a polygonal base and polygonal wings respectively perpendicular to the polygonal base and located between the polygonal base and the outer surface of the box door.

Further optionally, the polygonal base is a quadrilateral base, and correspondingly, the polygonal wing is a quadrilateral wing.

Further optionally, the polygonal base is a triangular base, and correspondingly, the polygonal wing is a triangular wing.

Further, one of the polygonal wings is hinged to the outer surface of the box door.

Further, a connecting ear adapted to pass through the wiring hole and partially protrude from the inner surface of the box door is provided on the inner surface of the polygonal base just below the side wing hinged with the outer surface of the box door.

Further, the inner surface of the box door is provided with a pin suitable for being inserted into the connecting ear.

Further, the inner surface of the polygonal base opposite to the edge of the wiring hole is provided with a ring of sealing gaskets along the edge of the wiring hole.

Further, the distance between the upper edge of the wiring hole and the visor of the box is 145-155 mm.

Further, the power supply box for inspection also includes a clamping piece arranged on the inner surface of the box door, which is suitable for fixing the power supply cable for inspection.

The beneficial effects of the present invention are: the maintenance power supply box of the present invention, through the connection hole provided on the box door, facilitates the maintenance power supply cable to pass through the connection hole and connect with the socket in the box inner cavity, so that the box door can be closed normally, and the box door can be closed normally. It avoids the problem that the traditional maintenance power supply box inserts the maintenance power cable from the opening of the box door into the inner cavity of the box, which may cause small animals to enter after the box door is opened and affect the normal operation of the equipment inside the box.

Furthermore, through the sealing gasket provided on the end face of the rainproof cover opposite to the connection hole, the box remains sealed without the insertion of the maintenance power cable, which can effectively prevent external moisture from entering the inside of the box and ensure the safety of the box. Internal humidity is normal.

Still further, through the clamping piece suitable for fixing and repairing the power supply cable provided on the inner surface of the box door, the connection of the maintenance power supply cable can be made more firm and reliable, and it will not cause maintenance when the power supply cable is stressed on the outside. The power cable plug is loose and disconnected.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the box door of maintenance power box of the present invention;

Fig. 2 is the structural representation of the box body of the maintenance power supply box of embodiment 1 of the present invention;

Fig. 3 is the structural representation of the casing of the overhaul power box of embodiment 2 of the present invention;

Fig. 4 is a schematic structural view of the pressing plate of the inspection power supply box of the present invention.

Among the figure: casing 1, chamber door 100, latch 102, gasket 103, pressing plate 105, stage clip 108, wiring hole 200, rainproof cover 300, polygonal base 301, polygonal wing 302, hinge 305, connecting ear 307.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1:

As shown in FIG. 1 and FIG. 2 , the present invention provides a maintenance power supply box, which includes a box body 1 , a wiring hole 200 and a rainproof cover 300 provided on the box body 1 .

The box body 1 has a box door 100 which is arranged on the front of the box body 1 and can be opened and/or closed relative to the box body 1 .

The wiring hole 200 is arranged on the box door 100 , and is suitable for checking and repairing the power cable to pass through the wiring hole 200 and connect to the inner cavity of the box body 1 .

The rainproof cover 300 is arranged on the outer surface of the box door 100 and is suitable for covering the wiring hole 200 .

The upper edge of the wiring hole 200 in this embodiment is 145-155 mm from the brim of the box body 1 . The opening size of the connection hole is 150mm*100mm, and the deviation is not more than ±5%, so as to ensure that the plug of the largest type of cable in normal use can be easily inserted.

The size of the rainproof cover 300 in this embodiment is 180*130*25mm to ensure that it is slightly larger than the opening size of the connection hole, and the deviation is not more than ±5%, so that it can closely fit with the opening size when it is closed normally.

Specifically, the rainproof cover 300 includes a polygonal base 301 and polygonal wings 302 respectively perpendicular to the polygonal base 301 and located between the polygonal base 301 and the outer surface of the box door 100 .

Optionally, the polygonal base 301 adopts a quadrilateral base, and correspondingly, the polygonal wing 302 adopts a quadrilateral wing.

Optionally, the polygonal base 301 adopts a triangular (triangular) base, and correspondingly, the polygonal wing 302 adopts a triangular (triangular) wing.

The polygonal base portion 301 can also be configured as other polygonal structures, and correspondingly, the polygonal wing portion 302 can also be configured as other polygonal structures, which will not be described in detail in this embodiment.

One side of the polygonal wing 302 is hinged to the outer surface of the box door 100 . On the inner surface of the polygonal base 301 , there is a connecting ear 307 which is adapted to pass through the wiring hole 200 and partially protrudes from the inner surface of the box door 100 . In the present embodiment, the corresponding connecting hole of the polygonal wing portion 302 is hinged to the outer surface of the box door 100 through a hinge 305 .

The inner surface of the box door 100 is provided with a plug pin 102 suitable for being inserted into the connecting ear 307, so that the box body 1 can be inserted into the connecting ear 307 through the plug pin 102 when the power cable for maintenance is not inserted, so that the rainproof cover 300 is covered. connection hole.

In order to further improve the tightness of the inner cavity of the box body 1 , a ring of gasket 103 is provided along the edge of the wiring hole 200 on the inner surface of the polygonal base 301 opposite to the edge of the wiring hole 200 . The gasket 103 of this embodiment adopts an Ω-shaped gasket, and the size of the gasket is designed to be 15*20*5mm according to the size of the rainproof groove.

Example 2:

On the basis of Embodiment 1, as shown in FIG. 3 and FIG. 4 , the inspection power supply box of this embodiment further includes a clamping piece arranged on the inner surface of the box door 100 and suitable for fixing the inspection power supply cable. The clamping part of this embodiment adopts a compression spring-pressure plate structure, specifically, it includes a pressure plate 105 connected to the inner surface of the box door 100 through a plurality of compression springs 108, and by pulling the pressure plate 105 apart, utilizing the elasticity of the compression spring 108, the The maintenance power cable passes and is fixed between the pressing plate 105 and the inner surface of the box door 100 .

The specific embodiment of the overhaul power supply box of the present invention is: first open the box door 100 of the overhaul power supply box (the key of the box door 100 is kept by a special person), withdraw from the connecting ear 307 on the inner surface latch 102 of the box door 100, and open the rainproof cover 300. Then by the connecting hole on the box door 100, insert the maintenance power supply cable, pass the plug on the inner surface of the box door 100 at the maintenance power supply cable and insert on the corresponding socket in the maintenance power supply box. Fix the maintenance power cable on the inner surface of the box door 100 by clamping parts, adjust the maintenance power cable to avoid tightness, close the box door 100 of the maintenance power box (the key of the box door 100 is returned to the custodian for management), and adjust the opening and closing degree of the rain cover 300 , so that the maintenance power supply box is relatively sealed, effectively preventing external moisture from entering the inside of the box body 1, and ensuring that the inside humidity of the box body 1 is normal.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying No device or element must have a particular orientation, be constructed, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Claims (10)

1. A kind of 1. maintenance power box, it is characterised in that including：

   Casing, have one located at the positive chamber door that can be opened and/or close relative to casing of casing；

   Wiring hole, on the chamber door, cabinets cavity is connected to through reconfiguration string holes suitable for maintenance feed cable；And

   Rain cover, on the chamber door outer surface and suitable for covering on the wiring hole.
2. 2. maintenance power box according to claim 1, it is characterised in that the rain cover includes a polygonal base and divided Polygon alar part not perpendicular to polygonal base and between polygonal base and chamber door outer surface.
3. 3. maintenance power box according to claim 2, it is characterised in that the polygonal base uses quadrangle base portion, And it is corresponding, polygon alar part uses quadrangle alar part.
4. 4. maintenance power box according to claim 2, it is characterised in that the polygonal base uses triangle base portion, And it is corresponding, polygon alar part uses triangle alar part.
5. 5. according to the maintenance power box described in any one of claim 3 or 4, it is characterised in that the polygon alar part is wherein One side alar part is hinged with chamber door outer surface.
6. 6. maintenance power box according to claim 5, it is characterised in that on the inner surface of the polygonal base be located at The be hinged one side alar part in chamber door outer surface is arranged right below one being adapted to pass through wiring hole and partially extending through in chamber door inner surface Engaging lug.
7. 7. maintenance power box according to claim 6, it is characterised in that the chamber door inner surface setting has one to be adapted for insertion into Latch in the engaging lug.
8. 8. according to the maintenance power box described in any one of claim 2~4, it is characterised in that the polygonal base with it is described Edge of the relative inner surface in the edge of wiring hole along wiring hole is provided with a circle sealing gasket.
9. 9. maintenance power box according to claim 1, it is characterised in that the top edge of the wiring hole is apart from the casing The brim of a hat distance is 145~155mm.
10. 10. maintenance power box according to claim 1, it is characterised in that also include being suitable on chamber door inner surface The holder of fixed maintenance feed cable.