CN210378814U - Earthing interlocking device of switch cabinet - Google Patents
Earthing interlocking device of switch cabinet Download PDFInfo
- Publication number
- CN210378814U CN210378814U CN201921839133.2U CN201921839133U CN210378814U CN 210378814 U CN210378814 U CN 210378814U CN 201921839133 U CN201921839133 U CN 201921839133U CN 210378814 U CN210378814 U CN 210378814U
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- shaft
- locking
- piece
- interlocking
- switch cabinet
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Abstract
The utility model relates to a ground connection interlock of cubical switchboard, including preceding operating axis, the connecting rod, the rear axle, interlocking components, the pull rod, the both ends of connecting rod are connected perpendicularly respectively at preceding operating axis, one of rear axle is served, the pull rod is connected perpendicularly on the other end of rear axle, and the other end of pull rod is connected on ground switch, interlocking components includes support piece, the locking axle, a spring, the deblocking piece, the linkage sets up at the locking epaxially, it is provided with the jam plate to correspond locking axle department on the rear axle, and be provided with the lockhole that can supply the locking axle to pass on the jam plate, when the cubical switchboard back door is opened, the one end interlude of locking axle is in the lockhole, and constitute the spacing cooperation of jam plate and locking axle, when the cubical switchboard back door is closed, the cubical switchboard back door is contradicted and is served at the deblocking piece, the deblocking piece drives the action of locking axle, and realize the unblock of locking axle and jam. The utility model has the advantages of simple structure, safe and reliable performance and convenient operation.
Description
Technical Field
The utility model particularly relates to a ground connection interlock of cubical switchboard.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, a grounding switch, an operating mechanism, a mutual inductor, various protection devices and the like. In order to improve the safety performance of the switch cabinet, the existing switch cabinet is provided with the grounding interlocking device, the rear door of the switch cabinet is opened after the grounding switch is switched on, the grounding switch can still be operated, and at the moment, the grounding switch can still be switched off, and the breaker is switched on and supplies power, so that the cable chamber compartment is electrified and the personal safety of operators is damaged.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, dependable performance safety, simple operation's cubical switchboard ground connection interlock.
In order to achieve the above object, the present invention provides a grounding interlock device for a switch cabinet, comprising a front operating shaft, a connecting rod cooperating with the front operating shaft, a rear shaft cooperating with the connecting rod, an interlock assembly disposed in the cabinet and cooperating with the rear shaft, and a pull rod cooperating with the rear shaft, wherein two ends of the connecting rod are respectively and vertically connected to one end of the front operating shaft and one end of the rear shaft, the pull rod is vertically connected to the other end of the rear shaft, and the other end of the pull rod is connected to a grounding switch, the interlock assembly comprises a support member, a locking shaft movably disposed on the support member, a spring sleeved on the locking shaft, and an unlocking member cooperating with the rear door of the switch cabinet, the unlocking member is operatively connected to the locking shaft, the rear shaft is provided with a locking plate corresponding to the locking shaft, and the locking plate is provided with a locking hole for the locking shaft to pass through, when the rear door of the switch cabinet is opened, one end of the locking shaft penetrates through the locking hole and forms limit matching of the locking plate and the locking shaft, when the rear door of the switch cabinet is closed, the rear door of the switch cabinet abuts against one end of the unlocking piece, the unlocking piece drives the locking shaft to move, and unlocking of the locking shaft and the locking plate is achieved.
The beneficial effect of above-mentioned structure is: the front operating shaft and the rear shaft of the grounding interlocking device are not on the same horizontal plane, and a turning structure is adopted, so that the busbar at the rear part of the grounding switch and the rear shaft are staggered, the safety distance between the busbar and the rear shaft is increased, and the safety factor is improved. When the switch cabinet is operated, the rear door of the switch cabinet is closed, the sealing plate on the rear door of the switch cabinet pushes the unlocking piece, the unlocking piece pushes the locking shaft to contract and unlock, so that the front operating shaft drives the rear shaft to act through the connecting rod, and the rear shaft drives the pull rod, so that the opening and closing of the grounding switch are realized.
Particularly, the support piece is U-shaped, the locking shaft is inserted on the support piece, one end of the spring is abutted against the inner wall of the support piece, and the other end of the spring is abutted against the unlocking piece. The two ends of the spring are abutted between the inner wall of the supporting piece and the unlocking piece, so that the assembly of the spring is facilitated, the reliable action of the locking shaft is ensured, and the working reliability of the grounding interlocking device is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an internal structure diagram of the interlocking assembly according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1 and 2, an embodiment of the present invention is a ground interlock device for a switch cabinet, including a front operating shaft 10, a connecting rod 11 in linkage fit with the front operating shaft 10, a rear shaft 12 in linkage fit with the connecting rod 11, an interlock component 20 disposed in the cabinet and in linkage fit with the rear shaft 12, and a pull rod 13 in linkage fit with the rear shaft 12, wherein two ends of the connecting rod 11 are respectively and vertically connected to one end of the front operating shaft 10 and one end of the rear shaft 12, the pull rod 13 is vertically connected to the other end of the rear shaft 12, and the other end of the pull rod 13 is connected to a ground switch 30, the interlock component 20 includes a support member 21, a locking shaft 22 movably disposed on the support member 21, a spring 23 sleeved on the locking shaft 22, and an unlocking member 24 in linkage fit with a rear door 31 of the switch cabinet, the unlocking member 24 is disposed on the locking shaft 22, a locking plate 121 is disposed on the rear shaft 12 corresponding to the locking shaft 22, and the lock plate 121 is provided with a lock hole 122 through which the locking shaft 22 can pass, when the switch cabinet rear door 31 is opened, one end of the locking shaft 22 penetrates into the lock hole 122 and forms limit fit of the lock plate 121 and the locking shaft 22, when the switch cabinet rear door 31 is closed, the switch cabinet rear door 31 abuts against one end of the unlocking piece 24, and the unlocking piece 24 drives the locking shaft 22 to move and realizes unlocking of the locking shaft 22 and the lock plate 121.
As shown in fig. 2, the supporting member 21 is U-shaped, the locking shaft 22 is inserted into the supporting member 21, one end of the spring 23 abuts against the inner wall of the supporting member 21, and the other end of the spring 23 abuts against the unlocking member 24. The two ends of the spring are abutted between the inner wall of the supporting piece and the unlocking piece, so that the assembly of the spring is facilitated, the reliable action of the locking shaft is ensured, and the working reliability of the grounding interlocking device is improved.
The front operating shaft and the rear shaft of the grounding interlocking device are not on the same horizontal plane, and a turning structure is adopted, so that the busbar at the rear part of the grounding switch and the rear shaft are staggered, the safety distance between the busbar and the rear shaft is increased, and the safety factor is improved. When the switch cabinet is operated, the rear door of the switch cabinet is closed, the sealing plate on the rear door of the switch cabinet pushes the unlocking piece, the unlocking piece pushes the locking shaft to contract and unlock, so that the front operating shaft drives the rear shaft to act through the connecting rod, and the rear shaft drives the pull rod, so that the opening and closing of the grounding switch are realized.
Claims (2)
1. The utility model provides a ground connection interlock of cubical switchboard which characterized in that: the interlocking device comprises a front operating shaft, a connecting rod in linkage fit with the front operating shaft, a rear shaft in linkage fit with the connecting rod, an interlocking component arranged in a cabinet body and matched with the rear shaft, and a pull rod in linkage fit with the rear shaft, wherein two ends of the connecting rod are respectively and vertically connected with one end of the front operating shaft and one end of the rear shaft, the pull rod is vertically connected with the other end of the rear shaft, the other end of the pull rod is connected with a ground switch, the interlocking component comprises a supporting piece, an interlocking shaft movably arranged on the supporting piece, a spring sleeved on the interlocking shaft, and an unlocking piece matched with a rear door of a switch cabinet, the unlocking piece is in linkage fit with the interlocking shaft, a locking plate is arranged on the rear shaft corresponding to the interlocking shaft, a locking hole for the interlocking shaft to pass through is arranged on the locking plate, when the rear door of the switch cabinet is opened, one end of the interlocking shaft is inserted into the locking hole, and the limit matching of the locking plate and the locking shaft is formed, when the switch cabinet rear door is closed, the switch cabinet rear door is abutted against one end of the unlocking piece, the unlocking piece drives the locking shaft to act, and the unlocking of the locking shaft and the locking plate is realized.
2. The switchgear cabinet grounding interlock device according to claim 1, characterized in that: the support piece be U type form, the shutting axle alternate on support piece, the one end of spring contradict on support piece's inner wall, the other end of spring contradict on the unlocking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921839133.2U CN210378814U (en) | 2019-10-29 | 2019-10-29 | Earthing interlocking device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921839133.2U CN210378814U (en) | 2019-10-29 | 2019-10-29 | Earthing interlocking device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378814U true CN210378814U (en) | 2020-04-21 |
Family
ID=70256933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921839133.2U Active CN210378814U (en) | 2019-10-29 | 2019-10-29 | Earthing interlocking device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378814U (en) |
-
2019
- 2019-10-29 CN CN201921839133.2U patent/CN210378814U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |