CN217159090U - Automatic take-up device for grounding of movable curtain door in switch cabinet of transformer substation - Google Patents
Automatic take-up device for grounding of movable curtain door in switch cabinet of transformer substation Download PDFInfo
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- CN217159090U CN217159090U CN202220084053.6U CN202220084053U CN217159090U CN 217159090 U CN217159090 U CN 217159090U CN 202220084053 U CN202220084053 U CN 202220084053U CN 217159090 U CN217159090 U CN 217159090U
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- grounding
- curtain door
- movable curtain
- switch cabinet
- bracket
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Abstract
The utility model discloses an automatic take-up device for grounding of a movable curtain door in a transformer substation switch cabinet, which comprises a shell, a vortex spring, a fixed shaft, a driving wheel and a grounding wire, wherein the vortex spring, the fixed shaft, the driving wheel and the grounding wire are arranged in the shell; the inner end of the vortex spring is connected with the fixed shaft, and the outer end of the vortex spring is fixed on the inner side wall of the driving wheel through a clamping groove; the grounding wire is wound on the outer side wall of the driving wheel; the bottom end of the shell is provided with a bracket; the head end of the grounding wire and the bracket are fixed together at the lower end of the movable curtain door of the switch cabinet; an outlet is formed in the shell, and the tail end of the grounding wire penetrates through the outlet and is connected to a grounding point at the bottom of the switch cabinet through an annular sleeve opening. The utility model discloses an automatic take-up for earthing of movable curtain door in transformer substation's cubical switchboard optimizes the movable curtain door ground connection condition in the current cubical switchboard, can prevent effectively that the dolly from pulling out the trouble that pushes out in-process rear movable curtain door and cause because of mistake ground connection, promotes the reliability of cubical switchboard normal operating.
Description
Technical Field
The utility model relates to an automatic take-up that is used for transformer substation's cubical switchboard internal movable curtain door ground connection.
Background
The standard of switch cabinet internal connection ground can refer to the relevant requirements of the industry, the automatic retraction function is mostly applied to the fields of dust collectors, air blowers, automobile safety belts and the like, and if the automatic retraction function is applied to the field of the power industry, the reevaluation design of materials, mechanical structures and functions of equipment is needed.
According to the requirements of related industries, a metal partition plate and a valve in a 10kV switch cabinet of a transformer substation are reliably connected to a grounding point of a functional unit, but the traditional movable curtain door grounding is directly connected to a fixed grounding point in the cabinet body only through a long grounding wire wrapped by a plastic film, and the grounding wire is obviously deformed after a curtain door buckle is unfastened and sunk. Found in the field work in-process through the bending that accumulates day by day, copper earth connection and outside protection film very easily take place to become fragile ageing even break, and sometimes the earth connection can press close to the cabinet body behind the curtain door in the bending process moreover, has shortened the electric clearance greatly, does not conform to the switch cabinet body ground connection requirement. Meanwhile, the extension direction of the grounding wire is uncontrollable in the bending process, the grounding wire can be wound on a curtain door or a switch component in the pushing and pulling process of the trolley to cause the blockage of a mechanical structure, and the structural damage of an irreversible cabinet body can be caused under the extreme condition, thereby causing serious threat to the normal work of the switch cabinet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's ground connection design's defect, providing an automatic take-up that is used for movable curtain door ground connection in the cubical switchboard of transformer substation, optimizing the movable curtain door ground connection condition in the present cubical switchboard, can effectively prevent that the dolly from pulling out the trouble that pushes out in-process rear movable curtain door and cause because of mistake ground connection, promote the reliability of cubical switchboard normal operating.
The technical scheme for realizing the purpose is as follows: the utility model provides an automatic take-up that is used for in cubical switchboard of transformer substation movable curtain door ground connection, includes the shell and sets up vortex spring, fixed axle, drive wheel and the earth connection in the shell, wherein:
the fixed shaft is vertically fixed in the shell, the vortex spring is sleeved outside the fixed shaft, and the driving wheel is sleeved outside the vortex spring;
the inner end of the vortex spring is connected with the fixed shaft, and the outer end of the vortex spring is fixed on the inner side wall of the driving wheel through a clamping groove;
the grounding wire is wound on the outer side wall of the driving wheel;
the bottom end of the shell is provided with a bracket;
the head end of the grounding wire and the bracket are fixed together at the lower end of the movable curtain door of the switch cabinet;
the shell is provided with an outlet, and the tail end of the grounding wire penetrates through the outlet and is connected to a grounding point at the bottom of the switch cabinet through an annular sleeve opening.
The automatic take-up device for grounding of the movable curtain door in the switch cabinet of the transformer substation is characterized in that the grounding wire is formed by stranding a plurality of strands of bare copper wires, and an insulating protective layer is wrapped outside the grounding wire.
The automatic take-up device for grounding of the movable curtain door in the switch cabinet of the transformer substation is characterized in that a support mounting hole is formed in the bottom end of the shell, and the head end of the grounding wire is connected with the support mounting hole through the annular sleeve opening.
The automatic take-up device for grounding the movable curtain door in the switch cabinet of the transformer substation is characterized in that one end of the bracket is connected with the bottom end of the fixed shaft; the middle part of the bracket is connected with the bracket mounting hole; and the middle part of the bracket and the other end of the bracket are respectively fixed on a lower end platform of a movable curtain door of the switch cabinet.
The utility model discloses an automatic take-up for grounding of movable curtain door in a transformer substation switch cabinet, which optimizes the grounding condition of the movable curtain door in the existing 10kV switch cabinet, and designs and optimizes the take-up according to the physical property of the standard grounding wire; the automatic take-up device can effectively prevent the fault caused by mistaken grounding of the rear movable curtain door in the process of pulling out and pushing in the trolley, and improves the reliability of normal operation of the switch cabinet.
Drawings
Fig. 1 is a structural diagram of the automatic wire take-up device for grounding of the movable curtain door in the switch cabinet of the transformer substation of the utility model;
fig. 2 is the utility model discloses a use state diagram that is used for the automatic take-up of transformer substation's cubical switchboard interior movable curtain door ground connection.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1 and 2, in a preferred embodiment of the present invention, an automatic wire winding device for grounding a movable curtain door in a switch cabinet of a transformer substation includes a housing 1, and a vortex spring 2, a fixed shaft 3, a transmission wheel 4 and a ground wire 5 disposed in the housing 1. The fixed shaft 3 is vertically fixed in the shell 1, the vortex spring 2 is sleeved outside the fixed shaft 3, and the driving wheel 4 is sleeved outside the vortex spring 2; the inner end of the vortex spring 2 is connected with the fixed shaft 3, and the outer end of the vortex spring is fixed on the inner side wall of the driving wheel 4 through a clamping groove; the grounding wire 5 is wound on the outer side wall of the driving wheel 4; the bottom end of the shell 1 is provided with a bracket 6; the head end 51 of the grounding wire 5 and the bracket 6 are fixed together at the lower end of the movable curtain door 201 of the switch cabinet 200; the housing 1 is provided with an outlet through which the tail end 52 of the ground wire 5 is passed and connected to a ground point 300 at the bottom of the switchgear 200 through a ring-shaped socket 7.
The grounding wire 5 is formed by twisting a plurality of strands of bare copper wires, and an insulating protective layer is wrapped outside the grounding wire. The bottom end of the shell 1 is provided with a bracket mounting hole, and the head end 51 of the grounding wire 5 is connected with the bracket mounting hole through a ring-shaped sleeve opening. One end of the bracket 6 is connected with the bottom end of the fixed shaft 3; the middle part of the bracket 6 is connected with the bracket mounting hole; and the middle part of the bracket 6 and the other end of the bracket 6 are respectively fixed on the lower end platform of the movable curtain door 201 of the switch cabinet 200.
The head end 51 and the tail end 52 of the grounding wire 5 are respectively embedded with an annular sleeve opening 7 so as to be fixed with the subsequent. The bracket 6 may be fixed to a lower end platform of the movable curtain door 201 of the switchgear 200 together with a ground wire.
The utility model discloses an automatic take-up 100 that is used for movable curtain door ground connection in the cubical switchboard of transformer substation, there is high-pressure contact 202 in the cubical switchboard 200, when the in-service use, on being fixed in movable curtain door 201's lower extreme platform with the perforation of support 6 with ring type running-on 7 of head end 51 of automatic take-up 100's earth connection 5, here is fixed motionless point. The tail end 52 of the grounding wire penetrates through the outlet of the shell 1 and extends out, and is connected to the grounding point 300 at the bottom of the switch cabinet 200 through the annular sleeve opening 7, and all the grounding wires 5 in the shell 1 are wound on the outer side wall of the driving wheel 4. When an operator pulls out the trolley for the switch in the switch cabinet 200, the movable curtain door 201 is dragged upwards according to a mechanical system installed in the switch cabinet 200, at the moment, the tail end 52 of the grounding wire is still fixed on the grounding point 300 at the bottom of the switch cabinet 200, meanwhile, the head end 51 of the grounding wire moves upwards along with the movable curtain door 201, the grounding wire 5 is dragged and stretched to drive the internal driving wheel 4 to roll, meanwhile, the scroll spring 2 rolls to accumulate spring potential energy to generate corresponding dragging force, and the part of the grounding wire 5 extending out of the shell 1 is straightened due to the dragging force of the scroll spring 2. When a worker pushes a switch into the switch cabinet 200 by using the trolley, the movable curtain door 201 of the switch cabinet 200 can be released downwards, the automatic wire rewinding device 100 installed on the lower end platform of the movable curtain door 201 falls along with the movable curtain door, the vortex spring 2 releases the originally accumulated spring potential energy, the driving wheel 4 is driven to roll in the opposite direction to retract the part of the grounding wire 5 released before, until the movable curtain door 201 integrally falls to the bottom of the switch cabinet 200, and the grounding wires 5 of the automatic wire rewinding device 100 are all reset.
The utility model discloses an automatic take-up for grounding of movable curtain door in transformer substation switch cabinet, when using the dolly to pull out the switch, the movable curtain door is buckled, drives automatic take-up and accumulates potential energy and emits length and keeps the earth connection vertical all the time; when the trolley is pushed in, the movable curtain door buckle is unfastened to move downwards, the automatic wire take-up device releases potential energy and quickly recovers the grounding wire, and the grounding wire is prevented from being bent due to overlong length. Through using the utility model discloses an automatic take-up can avoid earth connection 5 to entangle at the winding that the in-process of bending activity produced when guaranteeing 5 zonulae occludens of earth connection, can adjust the length and the position of earth connection 5 in a flexible way simultaneously, makes the adjustment according to the difference of cubical switchboard design, has stronger compatible adaptability.
To sum up, the utility model discloses an automatic take-up for movable curtain door ground connection in the cubical switchboard of transformer substation optimizes the movable curtain door ground connection condition in the current 10kV cubical switchboard, can prevent effectively that the dolly from pulling out the trouble that pushes out in-process rear movable curtain door and cause because of mistake ground connection, promotes the reliability of cubical switchboard normal operating.
It should be understood by those skilled in the art that the above embodiments are only used for illustrating the present invention, and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are all within the scope of the claims of the present invention as long as they are within the spirit of the present invention.
Claims (4)
1. The utility model provides an automatic take-up that is used for in cubical switchboard of transformer substation movable curtain door ground connection which characterized in that, includes the shell and sets up vortex spring, fixed axle, drive wheel and the earth connection in the shell, wherein:
the fixed shaft is vertically fixed in the shell, the vortex spring is sleeved outside the fixed shaft, and the driving wheel is sleeved outside the vortex spring;
the inner end of the vortex spring is connected with the fixed shaft, and the outer end of the vortex spring is fixed on the inner side wall of the driving wheel through a clamping groove;
the grounding wire is wound on the outer side wall of the driving wheel;
the bottom end of the shell is provided with a bracket;
the head end of the grounding wire and the bracket are fixed together at the lower end of the movable curtain door of the switch cabinet;
the shell is provided with an outlet, and the tail end of the grounding wire penetrates through the outlet and is connected to a grounding point at the bottom of the switch cabinet through an annular sleeve opening.
2. The automatic take-up device for grounding the movable curtain door in the switch cabinet of the transformer substation as claimed in claim 1, wherein the grounding wire is formed by twisting a plurality of strands of bare copper wires, and an insulating protective layer is wrapped outside the grounding wire.
3. The automatic take-up device for grounding of the movable curtain door in the switch cabinet of the transformer substation as claimed in claim 1, wherein a bracket mounting hole is formed at the bottom end of the outer shell, and the head end of the grounding wire is connected with the bracket mounting hole through a ring-shaped looping.
4. The automatic wire take-up device for grounding the movable curtain door in the switch cabinet of the transformer substation as claimed in claim 3, wherein one end of the bracket is connected with the bottom end of the fixed shaft; the middle part of the bracket is connected with the bracket mounting hole; and the middle part of the bracket and the other end of the bracket are respectively fixed on a lower end platform of a movable curtain door of the switch cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220084053.6U CN217159090U (en) | 2022-01-13 | 2022-01-13 | Automatic take-up device for grounding of movable curtain door in switch cabinet of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220084053.6U CN217159090U (en) | 2022-01-13 | 2022-01-13 | Automatic take-up device for grounding of movable curtain door in switch cabinet of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217159090U true CN217159090U (en) | 2022-08-09 |
Family
ID=82687711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220084053.6U Active CN217159090U (en) | 2022-01-13 | 2022-01-13 | Automatic take-up device for grounding of movable curtain door in switch cabinet of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217159090U (en) |
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2022
- 2022-01-13 CN CN202220084053.6U patent/CN217159090U/en active Active
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