CN217281758U

CN217281758U - Overhaul power box

Info

Publication number: CN217281758U
Application number: CN202220887190.3U
Authority: CN
Inventors: 何瑞峰; 郝天宝; 岳俊成; 刘志明; 杨艳超
Original assignee: Inner Mongolia Yitai Jingyue Suancigou Mining Co ltd; Inner Mongolia Zhongyu Taide Coal Co ltd; Ordos Zhongyu Taide Coal Co ltd
Current assignee: Inner Mongolia Yitai Jingyue Suancigou Mining Co ltd; Inner Mongolia Zhongyu Taide Coal Co ltd; Ordos Zhongyu Taide Coal Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-23
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses an overhaul power box, which comprises a power box main body, a protective cover, a lifting drive and at least two upright posts, wherein the power box main body is arranged between the upright posts in a sliding way up and down; the lifting drive controls the power box main body to move up and down along the upright post. The advantages are that: when the power box is used, the power box main body can be lowered to the outside of the protective cover, when the power box is not used, the power box main body can be lifted to the inside of the protective cover, the power box main body can be controlled to be movably arranged in the protective cover through lifting driving, the use is convenient and rapid, accidents caused by splashing of washing water onto the power box main body are avoided, and the safety is improved; through setting up limit switch and relevant control circuit about, can realize the control of lifting height for the operation is more convenient.

Description

Overhaul power box

The technical field is as follows:

the utility model relates to a power supply box technical field, specifically speaking relate to an overhaul power supply box.

Background art:

the maintenance power box is a temporary power utilization device which integrates a three-phase socket, a single socket, a direct current socket and a corresponding protection device, allows current to be large, is arranged around a factory building, and is convenient for maintenance and insertion of various electric tools, electrical equipment, illuminating lamps and the like. The maintenance power box is generally arranged around a factory building and is seriously influenced by the surrounding environment. If in the coal washery, the maintenance power supply box sets up in the position more than one meter from ground, and the workman all will wash equipment and ground in the factory building with the water pipe every day, the in-process of washing exists the condition on accidentally washing the maintenance power supply box with water, if the maintenance power supply box is sealed not tight, will cause the maintenance power supply box electrified like this, causes personnel to electrocute.

The utility model has the following contents:

an object of the utility model is to provide a can prevent that the sparge water from splashing the maintenance power supply box of power supply box main part.

The utility model discloses implement by following technical scheme: an overhaul power box comprises a power box main body, a protective cover, a lifting drive and at least two stand columns, wherein the power box main body is arranged between the stand columns in a vertically sliding mode, the protective cover with an opening at the bottom end is fixed between the tops of the stand columns, and the power box main body is movably arranged inside the protective cover; the lifting drive controls the power box main body to move up and down along the upright post.

Furthermore, the lifting drive comprises a winch, the winch is fixed to the inner top of the protective cover, and the movable end of a steel wire rope of the winch is fixedly connected with the top end of the power box main body.

Furthermore, an upper limit switch and a lower limit switch are mounted on any one of the upright columns at the top end and the bottom end of the lifting stroke of the power box main body, and the top end and the bottom end of the power box main body are respectively in movable contact with the upper limit switch and the lower limit switch.

Furthermore, the lower limit switch is connected with a coil of the first intermediate relay in series and then connected with a power supply, and the upper limit switch is connected with a coil of the second intermediate relay in series and then connected with the power supply; a coil of the first relay, a normally closed contact of the first intermediate relay, the descending button and a normally closed contact of the second relay are connected in series to form a second series branch, and a coil of the second relay, a normally closed contact of the second intermediate relay, the ascending button and a normally closed contact of the first relay are connected in series to form a first series branch; a normally closed contact of the thermal relay is connected with the first series branch and the second series branch in series respectively and then is connected with a power supply; the main contact of the first relay and the coil of the thermal relay are connected with the air switch and the lifting driving motor in series and then connected with the power supply; the main contact of the second relay is connected in parallel with the main contact of the first relay.

Furthermore, the normally open contact of the first intermediate relay and the lower limit indicator lamp are connected in series and then connected with a power supply.

Furthermore, the normally open contact of the second intermediate relay and the upper limit indicator lamp are connected in series and then connected with a power supply.

Furthermore, a rail is vertically arranged on the side wall of the upright column adjacent to the power box main body, and a pulley rolling along the rail is rotatably arranged on the power box main body adjacent to the upright column.

The utility model has the advantages that: when the power box is used, the power box main body can be lowered to the outside of the protective cover, when the power box is not used, the power box main body can be lifted to the inside of the protective cover, the power box main body can be controlled to be movably arranged in the protective cover through lifting driving, the use is convenient and rapid, accidents caused by splashing of washing water onto the power box main body are avoided, and the safety is improved; through setting up limit switch and relevant control circuit about, can realize the control of lifting height for the operation is more convenient.

Description of the drawings:

fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is a schematic view of the entire structure of embodiment 2.

Fig. 3 is a control circuit diagram of embodiment 2.

The power box comprises a power box body 1, a protective cover 2, a lifting drive 3, a winch 31, a steel wire rope 32, a stand column 4, a rail 41, a pulley 5, an upper limit switch SQ2, a lower limit switch SQ1, a first intermediate relay KA1, a second intermediate relay KA2, a first relay KM1, a second relay KM2, a descending button SB1, an ascending button SB2, a thermal relay FR, a motor M, a lower limit indicator HL1 and an upper limit indicator HL 2.

The specific implementation mode is as follows:

in the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1: as shown in fig. 1, an overhaul power supply box comprises a power supply box main body 1, a protective cover 2, a lifting drive 3 and two upright posts 4, wherein the power supply box main body 1 is arranged between the upright posts 4 in a vertically sliding manner, a rail 41 is vertically arranged on the side wall of the upright post 4 adjacent to the power supply box main body 1, and a pulley 5 rolling along the rail 41 is rotatably arranged on the power supply box main body 1 adjacent to the upright post 4; the power box main body 1 rolls along the rail 41 through the pulley 5 in the process of ascending and descending to realize the guiding and limiting effects, wherein the cross section of the rail 41 is trapezoidal, and a groove matched with the rail 41 is formed in the wheel surface of the pulley 5.

A protective cover 2 with an opening at the bottom end is fixed between the tops of the stand columns 4, the power box main body 1 is movably arranged in the protective cover 2, and the lifting drive 3 drives the power box main body 1 to move up and down along the stand columns 4. When the power box main body 1 needs to be used, the power box main body 1 is controlled to move downwards to the lower part of the protective cover 2, so that the use is convenient; after the use, control power supply box main part 1 rises to the inside of protection casing 2, plays the guard action to power supply box main part 1 through protection casing 2, prevents that the sparge water from splashing on power supply box main part 1, guarantees safety.

Specifically, the lifting drive 3 may be a push-pull motor, or as shown in this embodiment, the lifting drive 3 includes a winch 31, the winch 31 is fixed to the inner top of the protection cover 2, and the movable end of the wire rope 32 of the winch 31 is fixedly connected to the top end of the power box main body 1. The wire rope 32 is upwards retracted through the winch 31, the power box body 1 is further lifted into the protective cover 2, when the winch 31 rotates reversely to unwind the wire rope 32, the power box body 1 can descend below the protective cover 2 under the action of gravity of the power box body 1.

Example 2: as shown in fig. 2 and 3, the overall structure is the same as that of embodiment 1, except that an upper limit switch SQ2 and a lower limit switch SQ1 are attached to either one of the columns 4 at the top end and the bottom end of the lifting stroke of the power box body 1, and the top end and the bottom end of the power box body 1 are in movable contact with the upper limit switch SQ2 and the lower limit switch SQ1, respectively.

The lower limit switch SQ1 is connected with a coil of the first intermediate relay KA1 in series and then is connected with a power supply, and the upper limit switch SQ2 is connected with a coil of the second intermediate relay KA2 in series and then is connected with the power supply; a coil of the first relay KM1, a normally closed contact of the first intermediate relay KA1, a descending button SB1 and a normally closed contact of the second relay KM2 are connected in series to form a second series branch, and a coil of the second relay KM2, a normally closed contact of the second intermediate relay KA2, an ascending button SB2 and a normally closed contact of the first relay KM1 are connected in series to form a first series branch; a normally closed contact of the thermal relay FR is connected with the first series branch and the second series branch in series respectively and then is connected with a power supply; the main contact of the first relay KM1 and the coil of the thermal relay FR are connected with the air switch FQ and the motor M of the lifting drive 3 in series and then connected with a power supply; the main contact of the second relay KM2 was connected in parallel with the main contact of the first relay KM 1.

A normally open contact of the first intermediate relay KA1 and a lower limit indicator lamp HL1 are connected in series and then are connected with a power supply; the normally open contact of the second intermediate relay KA2 and the upper limit indicator lamp HL2 are connected in series and then connected with a power supply.

Instructions for use: when the power box body 1 is used, a descending button SB1 is pressed down, a first relay KM1 coil of the motor is electrified, the motor M is electrified, the power box body 1 moves downwards, when the power box body 1 moves to a lower limit switch SQ1, a first intermediate relay KA1 is electrified, a normally closed contact of the first intermediate relay KA1 is disconnected, the first relay KM1 is not electrified, the motor M is not electrified, the power box body 1 stops moving, a normally open contact of the first intermediate relay KA1 is closed, a lower limit indicator HL1 is lightened, and the power box body 1 can be put into use.

When the power box body 1 is used up, the ascending button SB2 is pressed, the coil of the second relay KM2 is electrified, the motor M is electrified, the power box body 1 moves upwards until the power box body upwards enters the protective cover 2 and reaches the upper limit switch SQ2, the coil of the second intermediate relay KA2 is electrified, the normally closed contact of the second intermediate relay KA2 is disconnected, the coil of the second relay KM2 is electrified, the power box body 1 stops moving, the normally open contact of the second intermediate relay KA2 is closed, and the upper limit indicator lamp HL2 is lightened.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An overhaul power box comprises a power box main body and is characterized by further comprising a protective cover, a lifting drive and at least two stand columns, wherein the power box main body is arranged between the stand columns in a vertically sliding mode, the protective cover with an opening at the bottom end is fixed between the tops of the stand columns, and the power box main body is movably arranged inside the protective cover; the lifting drive controls the power box main body to move up and down along the upright post.

2. The service power box of claim 1, wherein the lifting drive comprises a winch, the winch is fixed to the inner top of the protective cover, and the movable end of a steel wire rope of the winch is fixedly connected with the top end of the power box main body.

3. The maintenance power box according to claim 1 or 2, wherein an upper limit switch and a lower limit switch are mounted on any one of the columns at the top end and the bottom end of the lifting stroke of the power box main body, and the top end and the bottom end of the power box main body are respectively in movable contact with the upper limit switch and the lower limit switch.

4. The maintenance power box of claim 3, wherein the lower limit switch is connected with the coil of the first intermediate relay in series and then connected with the power supply, and the upper limit switch is connected with the coil of the second intermediate relay in series and then connected with the power supply; a coil of the first relay, a normally closed contact of the first intermediate relay, the descending button and a normally closed contact of the second relay are connected in series to form a second series branch, and a coil of the second relay, a normally closed contact of the second intermediate relay, the ascending button and a normally closed contact of the first relay are connected in series to form a first series branch; a normally closed contact of the thermal relay is connected with the first series branch and the second series branch in series respectively and then is connected with a power supply; the main contact of the first relay and the coil of the thermal relay are connected with the air switch and the lifting driving motor in series and then connected with the power supply; the main contact of the second relay is connected in parallel with the main contact of the first relay.

5. The service power box of claim 4, wherein the normally open contact of the first intermediate relay and the lower limit indicator lamp are connected in series and then connected to a power supply.

6. The service power box of claim 4 or 5, wherein the normally open contact of the second intermediate relay and the upper limit indicator lamp are connected in series and then connected to a power supply.

7. An inspection power box as claimed in claim 1, 2, 4 or 5, wherein a rail is vertically provided on the side wall of the column adjacent to the main body of the power box, and a pulley rolling along the rail is rotatably provided on the main body of the power box adjacent to the column.

8. An inspection power box as claimed in claim 3, wherein a rail is vertically provided on the side wall of the column adjacent to the main body of the power box, and a pulley rolling along the rail is rotatably provided on the main body of the power box adjacent to the column.

9. An inspection power box as claimed in claim 6, wherein a rail is vertically provided on the side wall of the column adjacent to the main body of the power box, and a pulley rolling along the rail is rotatably provided on the main body of the power box adjacent to the column.