CN216033789U

CN216033789U - Grounding short-circuit device for urban rail transit power supply system

Info

Publication number: CN216033789U
Application number: CN202122334253.0U
Authority: CN
Inventors: 卿嵩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-15
Anticipated expiration: 2031-09-26

Abstract

The utility model relates to the technical field of short circuit experiments of power supply systems, in particular to a grounding short circuit device for an urban rail transit power supply system. The utility model has the advantages that: one side through the mounting panel top surface is rotated and is connected with first insulation pole, the top fixedly connected with contact head of first insulation pole, the middle part of first insulation pole is rotated with electric putter's output and is connected, and the top of support frame is provided with the altitude mixture control structure, driving motor circular telegram operation, it rotates to drive the lead screw, thereby the insulating square column of drive rises, and an electric putter extension action, thereby be convenient for make contact head lifting and contact net contact, thereby be convenient for realize replacing the user and carry out the purpose that the ground wire is connected, and overall structure is simple, convenient to use person operates and uses.

Description

Grounding short-circuit device for urban rail transit power supply system

Technical Field

The utility model relates to the technical field of short circuit experiments of power supply systems, in particular to a grounding short circuit device for an urban rail transit power supply system.

Background

When an urban rail transit power supply system is operated, maintained or overhauled, the national electric power industry standard DL/T879-2004 portable grounding and grounding short-circuit device for live working is required to be enforced, the power supply of a contact net or a contact rail is interrupted, a grounding short-circuit device is also required to be installed, the grounding short-circuit device is used for guiding current separation when a power failure occurs, and the personal safety of workers in a maintenance or overhaul area is protected, two grounding modes of the existing grounding short-circuit device are provided, one mode is a traditional manual grounding mode, the other grounding mode is a grounding device fixedly connected into the power supply system, when a grounding short-circuit test is manually carried out, the grounding wire is usually manually hung, and the following defects are also existed when the grounding problem of the contact net is solved:

when the manual work is worked a telephone switchboard, danger coefficient is higher, brings great safety risk for the user, and the instrument grog is many simultaneously, is not convenient for carry the transportation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a grounding short-circuit device for an urban rail transit power supply system.

The purpose of the utility model is realized by the following technical scheme: a grounding short-circuit device for an urban rail transit power supply system comprises a transport vehicle, wherein one side of the top surface of the transport vehicle is fixedly connected with two storage batteries, the other side of the top surface of the transport vehicle is fixedly connected with a supporting frame, the top end of the supporting frame is provided with a height adjusting mechanism, the top end of the height adjusting mechanism is provided with a mounting plate, one side of the top surface of the mounting plate is rotatably connected with a first insulating rod, the top end of the first insulating rod is fixedly connected with a contact head, the bottom end of the contact head is fixedly connected with a high-voltage cable, the other side of the top surface of the mounting plate is rotatably connected with a second insulating rod, the top end of the insulating rod is fixedly connected with a high-voltage electroscope, the middle part of mounting panel top surface rotates and is connected with two electric putter, two electric putter's output rotates with the middle part of first insulator spindle and second insulator spindle respectively and is connected.

Optionally, height adjusting mechanism includes driving motor, lead screw, insulating square tube and insulating square column, driving motor passes through wire and battery electric connection, the middle part fixed connection of driving motor and support frame bottom surface, the bottom of lead screw and driving motor's output fixed connection, lead screw and insulating square column threaded connection, the bottom of insulating square tube and the top surface fixed connection of support frame, insulating square column and insulating square tube sliding connection, the top of insulating square column and the middle part fixed connection of mounting panel bottom surface, driving motor circular telegram drive lead screw rotate to the spacing square column of drive carries out the jacking action, thereby the height of lifting mounting panel is convenient for make contact head and high-voltage electroscope be close the contact net.

Optionally, two the battery respectively with two electric putter electric connection, the top fixedly connected with protection casing of transport vechicle, the protection casing can be convenient for carry out certain protection to two batteries and driving motor.

Optionally, the contact head passes through the top fixed connection of bolt and first insulating rod, the top surface of contact head is provided with the recess, the appearance of contact head is the semicircle, and the recess can be convenient for carry out the joint with the contact net, the contact position of restriction contact head and contact net.

Optionally, two electric putter's bottom and output all rotate with the middle part of mounting panel top surface, the middle part of first insulator spindle and the middle part of second insulator spindle respectively through the pin and are connected, the bottom of first insulator spindle and the bottom of second insulator spindle all rotate with the both sides of mounting panel top surface respectively through the pin and are connected, and two electric putter can control first insulator spindle and second insulator spindle respectively, and then can test electric operation and circuit short circuit operation respectively.

The utility model has the following advantages:

1. this ground connection short-circuit device for urban rail transit power supply system, one side through the mounting panel top surface is rotated and is connected with first insulation pole, the top fixedly connected with contact of first insulation pole, the middle part of first insulation pole is rotated with electric putter's output and is connected, and the top of support frame is provided with height adjusting mechanism, and then driving motor circular telegram operation, the drive lead screw rotates, thereby the insulating square column of drive rises, and an electric putter extension action, thereby be convenient for make contact lifting and contact net contact, thereby be convenient for realize replacing the user and carry out the purpose that the ground wire is connected, and overall structure is simple, convenient to use person carries out the operation and use.

2. This ground connection short-circuiting device for urban rail transit power supply system, top fixedly connected with high-voltage electroscope through the second insulator spindle, and then electric putter circular telegram operation, it rises to drive high-voltage electroscope, be convenient for make high-voltage electroscope be close to the contact net, verify whether the contact net is with some, all rotate with the mounting panel through first insulator spindle and second insulator spindle and be connected, and the top fixed connection of mounting panel and insulating square column, height control mechanism integral erection is in the top of transport vechicle, and then integrate multiple instrument, reduce user's carrying capacity, convenient to use person promotes the transport vechicle and removes simultaneously.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic view of the assembled structure of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1 at A;

FIG. 4 is a schematic structural view of the height adjustment mechanism of the present invention;

FIG. 5 is a schematic cross-sectional view of the height adjustment mechanism of the present invention;

fig. 6 is a schematic view of a first insulating rod structure according to the present invention.

In the figure: 1-transport vehicle, 2-support frame, 3-height adjusting mechanism, 301-driving motor, 302-screw rod, 303-insulating square tube, 304-insulating square column, 4-mounting plate, 5-high-voltage cable, 6-contact, 7-electric push rod, 8-second insulating rod, 9-high-voltage electroscope, 10-protective cover, 11-storage battery, 12-first insulating rod and 13-groove.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1 to 6, a ground short-circuit device for urban rail transit power supply system, it includes transport vechicle 1, two batteries 11 of one side fixedly connected with of transport vechicle 1 top surface, opposite side fixedly connected with support frame 2 of transport vechicle 1 top surface, the top of support frame 2 is provided with height adjusting mechanism 3, height adjusting mechanism 3's top is provided with mounting panel 4, one side of mounting panel 4 top surface is rotated and is connected with first insulation pole 12, the top fixedly connected with contact 6 of first insulation pole 12, the bottom fixedly connected with high tension cable 5 of contact 6, the opposite side of mounting panel 4 top surface is rotated and is connected with second insulation pole 8, the top fixedly connected with high voltage electroscope 9 of insulation pole 8, the middle part of mounting panel 4 top surface is rotated and is connected with two electric putter 7, the output of two electric putter 7 rotates with the middle part of first insulation pole 12 and second insulation pole 8 respectively and is connected.

As an optional technical scheme of the utility model: the height adjusting mechanism 3 comprises a driving motor 301, a screw rod 302, an insulating square tube 303 and an insulating square column 304, the driving motor 301 is electrically connected with the storage battery 11 through a lead, the driving motor 301 is fixedly connected with the middle part of the bottom surface of the support frame 2, the bottom end of the screw rod 302 is fixedly connected with the output end of the driving motor 301, the screw rod 302 is in threaded connection with the insulating square column 304, the bottom end of the insulating square tube 303 is fixedly connected with the top surface of the support frame 2, the insulating square column 304 is in sliding connection with the insulating square tube 303, the top end of the insulating square column 304 is fixedly connected with the middle part of the bottom surface of the mounting plate 4, the insulating square column 304 is positioned inside the insulating square tube 303, then the driving motor 301 is electrified to drive the screw rod 302 to rotate, thereby driving the limit square column 304 to lift up, thereby the height of lifting mounting panel 4 is convenient for make contact 6 and high-voltage electroscope 9 be close the contact net, makes preparation for the electricity of testing of high-voltage electroscope 9 and earth connection.

As an optional technical scheme of the utility model: two batteries 11 respectively with two electric putter 7 electric connection, the top fixedly connected with protection casing 10 of transport vechicle 1, protection casing 10 can be convenient for carry out certain protection to two batteries 11 and driving motor 301, can provide other instruments simultaneously and prevent the platform for the user, convenient to use person assembles and places other instruments, two batteries 11 can provide the electric energy for two electric putter 7 and driving motor 301 respectively simultaneously, the user of being convenient for operates and uses.

As an optional technical scheme of the utility model: contact 6 passes through the top fixed connection of bolt and first insulating rod 12, the top surface of contact 6 is provided with recess 13, the appearance of contact 6 is the semicircle, recess 13 can be convenient for carry out the joint with the contact net, the contact position of restriction contact 6 and contact net, when high tension cable 5's top and contact 6 are connected simultaneously, can adopt the line ball nose to carry out electric connection through the bolt, perhaps adopt the crimping to make high tension cable 5's top and contact 6's bottom carry out electric connection, and then can make high tension cable 5 and contact 6 good contact, be convenient for make high tension cable 5's bottom and contact net carry out electric connection, realize the rail short circuit.

As an optional technical scheme of the utility model: bottom and output of two electric putter 7 all through the pin respectively with the middle part of mounting panel 4 top surface, the middle part of first insulator spindle 12 and the middle part of second insulator spindle 8 rotate to be connected, the bottom of first insulator spindle 12 and the bottom of second insulator spindle 8 all rotate with the both sides of mounting panel 4 top surface respectively through the pin to be connected, two electric putter 7 can be controlled first insulator spindle 12 and second insulator spindle 8 respectively, and then can test electric operation and circuit short circuit operation respectively.

The utility model discloses a need following step during the use:

1) when the device is used, the transport vehicle 1 is pushed to the bottom of a contact net, then the driving motor 301 is electrified to operate, so that the screw rod 302 is driven to rotate, and the insulating square column 304 and the mounting plate 4 are driven to be lifted in height;

2) the electric push rod 7 close to one side of the second insulating rod 8 is electrified to operate, so that the second insulating rod 8 drives the high-voltage electroscope 9 to be lifted to a high degree, the high-voltage electroscope 9 is in contact with a contact net, and whether the contact net is provided with a point or not is verified conveniently;

3) after determining that the power is not available, the electric push rod 7 close to one side of the first insulating rod 12 is electrified to operate, so that the first insulating rod 12 drives the contact head 6 to contact with a contact net, a user is replaced to carry out ground wire connection operation, the whole structure is simple, and the user is convenient to operate and use.

To sum up, when a user uses the device, a first insulating rod 12 is rotatably connected to one side of the top surface of the mounting plate 4, a contact head 6 is fixedly connected to the top end of the first insulating rod 12, the middle part of the first insulating rod 12 is rotatably connected to the output end of the electric push rod 7, a height adjusting mechanism 3 is arranged at the top end of the support frame 2, and then the driving motor 301 is powered on to operate, so as to drive the lead screw 302 to rotate, so as to drive the insulating square column 304 to ascend, and one electric push rod 7 extends to act, so as to facilitate the lifting of the contact head 6 to contact with a contact net, thereby facilitating the purpose of replacing the user to carry out ground wire connection, and the device is simple in overall structure, convenient for the user to operate and use, and then the top end of the second insulating rod 8 is fixedly connected with a high-voltage electroscope 9, so as to power the contact net 7 to operate, so as to drive the high-voltage electroscope 9 to ascend, so as to facilitate the high-voltage electroscope 9 to approach, whether the contact net takes a little is verified, all rotate with mounting panel 4 through first insulator spindle 12 and second insulator spindle 8 and be connected, and mounting panel 4 and insulating square column 304's top fixed connection, height adjusting mechanism 3 integral erection in the top of transport vechicle 1, and then integrate multiple instrument, reduce user's carrying capacity, convenient to use person promotes transport vechicle 1 and removes simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an urban rail transit is ground connection short-circuit device for power supply system which characterized in that: comprises a transport vehicle (1), two storage batteries (11) are fixedly connected to one side of the top surface of the transport vehicle (1), a support frame (2) is fixedly connected to the other side of the top surface of the transport vehicle (1), a height adjusting mechanism (3) is arranged on the top end of the support frame (2), a mounting plate (4) is arranged on the top end of the height adjusting mechanism (3), a first insulating rod (12) is rotatably connected to one side of the top surface of the mounting plate (4), a contact head (6) is fixedly connected to the top end of the first insulating rod (12), a high-voltage cable (5) is fixedly connected to the bottom end of the contact head (6), a second insulating rod (8) is rotatably connected to the other side of the top surface of the mounting plate (4), a high-voltage electroscope (9) is fixedly connected to the top end of the insulating rod (8), two electric push rods (7) are rotatably connected to the middle part of the top surface of the mounting plate (4), the output ends of the two electric push rods (7) are respectively and rotatably connected with the middle parts of the first insulating rod (12) and the second insulating rod (8).

2. The grounding short-circuit device for the urban rail transit power supply system according to claim 1, characterized in that: height adjusting mechanism (3) include driving motor (301), lead screw (302), insulating square tube (303) and insulating square column (304), driving motor (301) pass through wire and battery (11) electric connection, the middle part fixed connection of driving motor (301) and support frame (2) bottom surface, the bottom of lead screw (302) and the output fixed connection of driving motor (301), lead screw (302) and insulating square column (304) threaded connection, the bottom of insulating square tube (303) and the top surface fixed connection of support frame (2), insulating square column (304) and insulating square tube (303) sliding connection, the top of insulating square column (304) and the middle part fixed connection of mounting panel (4) bottom surface.

3. The grounding short-circuit device for the urban rail transit power supply system according to claim 1, characterized in that: two battery (11) respectively with two electric putter (7) electric connection, the top fixedly connected with protection casing (10) of transport vechicle (1).

4. The grounding short-circuit device for the urban rail transit power supply system according to claim 1, characterized in that: the contact head (6) is fixedly connected with the top end of the first insulating rod (12) through a bolt, a groove (13) is formed in the top surface of the contact head (6), and the contact head (6) is semicircular in appearance.

5. The grounding short-circuit device for the urban rail transit power supply system according to claim 1, characterized in that: two the bottom and the output of electric putter (7) all rotate through the pin respectively with the middle part of mounting panel (4) top surface, the middle part of first insulator spindle (12) and the middle part of second insulator spindle (8) and be connected, the bottom of first insulator spindle (12) and the bottom of second insulator spindle (8) all rotate through the pin respectively with the both sides of mounting panel (4) top surface and be connected.