CN110047671B - Switch cabinet program lock - Google Patents

Switch cabinet program lock Download PDF

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Publication number
CN110047671B
CN110047671B CN201910310548.9A CN201910310548A CN110047671B CN 110047671 B CN110047671 B CN 110047671B CN 201910310548 A CN201910310548 A CN 201910310548A CN 110047671 B CN110047671 B CN 110047671B
Authority
CN
China
Prior art keywords
lock
lock head
head
last
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910310548.9A
Other languages
Chinese (zh)
Other versions
CN110047671A (en
Inventor
宋晓生
师军伟
周行
吴小钊
李克
李如璧
周志洋
牛艳红
郑文龙
许通
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuji delischer Electric Co.,Ltd.
State Grid Corp of China SGCC
Xuji Group Co Ltd
Original Assignee
Xuchang Xuji Driescher Wegberg Electric Co ltd
State Grid Corp of China SGCC
Xuji Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuchang Xuji Driescher Wegberg Electric Co ltd, State Grid Corp of China SGCC, Xuji Group Co Ltd filed Critical Xuchang Xuji Driescher Wegberg Electric Co ltd
Priority to CN201910310548.9A priority Critical patent/CN110047671B/en
Priority to CN201710031193.0A priority patent/CN106710912B/en
Publication of CN110047671A publication Critical patent/CN110047671A/en
Application granted granted Critical
Publication of CN110047671B publication Critical patent/CN110047671B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/28Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/287Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member wherein the operating part is made inaccessible or more difficult to access by a lid, cover or guard, e.g. lockable covers

Abstract

The invention relates to a program lock of a switch cabinet. More than two lock heads of the switch cabinet program lock are arranged, and the switch cabinet program lock comprises a final-stage lock head in transmission connection with a shielding piece, wherein the shielding piece is used for shielding the operation hole when the final-stage lock head is closed; for the condition that only two lock heads exist, a limiting part used for being matched with each other is arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the lock head adjacent to the last-stage lock head and the last-stage lock head; for the condition of more than three lock heads, limiting parts used for mutual matching are arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the last-stage lock head and two adjacent lock heads except the last-stage lock head, and the limiting parts are used for blocking the opening of the next lock head when the previous lock head is closed and blocking the closing of the previous lock head when the next lock head is opened. The program lock can be opened only when the key is inserted into each lock head, and then the shielding piece can be opened, so that the sequential operation of selecting two from N or selecting more from N can be realized.

Description

Switch cabinet program lock
The application is a divisional application of the following applications, the application date of the original application: 17.01 month 2017, application number of original application: 2017100311930, title of original application: cubical switchboard program lock.
Technical Field
The invention relates to a program lock of a switch cabinet.
Background
In a power supply system, especially in a ring network power supply system, for example, when dual power supplies or three power supplies supply, the switch cabinets have a specific operation sequence or relationship, so that faults or accidents during power supply are prevented. At present, in order to improve power supply reliability and shorten power failure time, a looped network power supply mode is more and more widely applied, and users have more and more requirements on mandatory sequential operation between looped network power supply switch cabinets. In a traditional switch cabinet, sequential operation is usually realized through a notice board and the like, but the mode is only suggestive and has the risk of misoperation. In the prior art, connecting plates or connecting rods and specific mechanical transmission devices are arranged on a plurality of switch cabinet supports to control the structures of power supply operation holes, and the power supply can be combined and separated only when the operation holes are opened, but the mode has complex structure, poor reliability and inconvenient installation and maintenance.
The Chinese patent with the grant publication number of CN201392995Y discloses an alternative interlocking device of a dual-power switch cabinet, which is used for interlocking two power switch cabinets, wherein each power switch cabinet is internally provided with a power switching-on/off operating shaft, an operating hole convenient for operating the power switching-on/off operating shaft is arranged at the position, corresponding to the power switching-on/off operating shaft, of each power switch cabinet, a lock head with the same key is arranged at the operating hole of each switch cabinet, and the key of each lock head can not be pulled out when the lock head is in an open state and can only be pulled out when the lock head is in a closed state; the lock core of the lock head can rotate, a baffle plate used for shielding the operation hole is connected to the lock core in a transmission mode, and a lock core limiting body (namely, the first limiting body in the patent) corresponding to an operation shaft limiting body (namely, the second limiting body in the patent) on the power supply opening and closing operation shaft is further arranged on the lock core. The baffle forms a shielding piece, and rotates together with the lock core limiting body along with the lock core, when the lock head is in a closed state, the baffle shields the operating hole, the power supply closing and separating operating shaft cannot be operated, when the lock head is in an open state, the baffle does not shield the operating hole, the operating hole is opened, and the power supply closing and separating operating shaft can be operated. Meanwhile, when the lock head is in an open state, the lock core limiting body on the lock head is limited by the operating shaft limiting body on the power supply opening and closing operating shaft, so that the lock head is prevented from rotating to a closed state, and a key is prevented from being pulled out. As long as the operation hole of one switch cabinet is opened and the switch cabinet is in a switch-on state, the lock head cannot be closed, the key cannot be pulled out, and the operation hole can be shielded and the key can be pulled out only when the switch cabinet with the opened operation hole is in a switch-off state. Therefore, as only one key is provided, as long as one switch cabinet is switched on, the key can not be used for opening the operation hole of the other switch cabinet, the switch cabinet is required to be closed firstly, and the key can be pulled out to operate the other switch cabinet, so that the interlocking purpose is realized.
However, in the case where three or more switch cabinets are required to perform sequential operation of two-out-of-N or more-out-of-N (N ≧ 3), the conventional interlock device cannot ensure the operation sequence because two or more keys are required.
Disclosure of Invention
The invention aims to provide a switch cabinet program lock, which solves the problem that the program lock in the prior art cannot realize sequential operation of selecting two from N or selecting more from N.
In order to achieve the purpose, the invention adopts the technical scheme that: the switch cabinet program lock comprises lock heads in an opening state and a closing state and a shielding piece for shielding an operation hole of a switch cabinet, wherein keys of the lock heads can be pulled out only when the lock heads are in the closing state, more than two lock heads are arranged, the lock heads comprise final-stage lock heads in transmission connection with the shielding piece, and the shielding piece is used for shielding the operation hole when the final-stage lock heads are closed; for the condition that only two lock heads exist, a limiting part used for being matched with each other is arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the lock head adjacent to the last-stage lock head and the last-stage lock head; for the condition of more than three lock heads, limiting parts used for mutual matching are arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the last-stage lock head and two adjacent lock heads except the last-stage lock head, and the limiting parts are used for blocking the opening of the next lock head when the previous lock head is closed and blocking the closing of the previous lock head when the next lock head is opened.
The lock cylinder of the last-stage lock head is provided with a gear, and the shielding piece is a toothed plate matched with the gear.
The switch cabinet procedure lock comprises a shell, wherein a avoiding hole corresponding to the operation hole of the switch cabinet is formed in the shell.
The pinion rack includes platelike shielding part and banding rack portion, form the breach between shielding part and the rack portion, be equipped with on the casing with the cubical switchboard state indication hole that the breach corresponds.
The lock comprises two lock heads which are respectively a first lock head and a second lock head, wherein the last-stage lock head is a second lock head, a lock plate is arranged on a lock cylinder of the first lock head, the lock plate is provided with a rack blocking part which is in blocking fit with the end part of the rack part when the second lock head is in a closed state, the lock plate is also provided with an anti-rotation blocking part which is in blocking fit with one side of the width direction of the rack part to prevent the lock plate from rotating towards the closed direction when the second lock head is in an open state, and the limiting part of the second lock head is formed by the anti-rotation blocking part and the rack blocking part.
The lock is characterized in that the toothed plate or the shell is provided with an elastic jacking part, the shell or the toothed plate is provided with a positioning hole for embedding the matching part of the elastic jacking part, and the positioning hole comprises a closing positioning hole corresponding to the closing state of the first lock head and an opening positioning hole corresponding to the opening state of the first lock head.
The locating hole sets up on the jam plate, be equipped with the ball mounting groove on the casing, elasticity roof pressure spare is equipped with the spring including the ball that sets up in the ball mounting groove between the cell wall of ball and ball mounting groove.
The springs are more than two, and the springs are uniformly distributed along the circumferential direction of the ball mounting groove.
And a lock cylinder limiting body which corresponds to an operating shaft limiting body on a power supply opening and closing operating shaft is arranged on the lock cylinder of the final lock head, and the lock cylinder limiting body is a limiting plate which is vertically fixed on the inner end surface of the lock cylinder.
Has the advantages that: by adopting the technical scheme, more than two lock heads are arranged on the switch cabinet program lock, keys of the lock heads can be pulled out only when the lock heads are in a closed state, and for the condition that the lock heads are only two, a limiting part for mutual matching is arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the lock head adjacent to the last-stage lock head and the last-stage lock head; for the condition of more than three lock heads, limiting parts used for being matched with each other are arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the last-stage lock head and two adjacent lock heads in other lock heads except the last-stage lock head, and the limiting parts are used for blocking the opening of the next lock head when the previous lock head is closed and blocking the closing of the previous lock head when the next lock head is opened, so that the shielding piece can be opened only by inserting a key into each lock head before the last-stage lock head and opening the last-stage lock head, and any key cannot be pulled out before the shielding piece is closed, so that the other switch cabinet is prevented from being operated, when the other switch cabinet is required to be operated, the shielding piece is required to be closed, and the sequential operation of selecting two from N or selecting more from N is realized.
Drawings
FIG. 1 is a front elevational view of the overall construction of one embodiment of the switchgear cabinet program lock of the present invention;
FIG. 2 is a top view of FIG. 1 (after insertion of a key);
FIG. 3 is a cross-sectional view A-A of FIG. 1 (after insertion of a key);
FIG. 4 is a rear view of FIG. 1;
FIG. 5 is a schematic view of the engagement structure of the locking plate and the balls;
FIG. 6 is a rear view of the switch cabinet program lock of FIG. 1 with the rear cover removed (closed state, with the toggle plate 54 omitted);
FIG. 7 is a rear view (open state) of the switch cabinet procedure lock of FIG. 1 with the rear cover plate removed;
fig. 8 is a schematic diagram of a limit fitting structure between a first lock head and a second lock head in another embodiment of the switch cabinet program lock of the invention (closed state);
the names corresponding to the reference numbers in the figures are: 10-housing, 11-front housing, 12-back cover plate, 13-relief hole, 14-switch cabinet status indication hole, 21-first lock, 22-second lock, 23-keyhole, 24-key, 25-gear, 30-toothed plate, 31-shielding portion, 32-rack portion, 40-lock plate, 41-rack blocking portion, 42-anti-rotation blocking portion, 43-opening positioning hole, 44-closing positioning hole, 51-ball mounting groove, 52-ball, 53-spring, 54-toggle plate, 61-first closing status blocking portion, 62-first opening status blocking portion, 63-second closing status blocking portion, 64-second opening status blocking portion.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
One embodiment of the switch cabinet program lock of the invention is shown in fig. 1-7, and is a program lock for four-out-of-two operation of a ring main unit, which comprises a shell 10, a first lock 21, a second lock 22 and a toothed plate 30, wherein the second lock 22 is a final-stage lock according to the opening sequence of the locks because only two locks are arranged. The housing 10 includes a front housing 11 and a rear cover plate 12, and the front housing 11 and the rear cover plate 12 are provided with avoiding holes 13 corresponding to operation holes of the switch cabinet. The first lock 21 and the second lock 22 both have an open state and a closed state, the two locks use the same key 24 and the key 24 can be pulled out only when the locks are in the closed state, the rotation range of the first lock 21 is 30 °, and the rotation range of the second lock 22 is 180 °. The toothed plate 30 is provided on the housing 10 so as to be guided and moved in the arrangement direction of the lock heads, and has an opening position for shielding the avoiding hole 13 and further shielding the operation hole of the switchgear and exposing the avoiding hole 13 and the operation hole of the switchgear, and the toothed plate 30 constitutes a shielding member for shielding the operation hole of the switchgear. In other embodiments, the rotation range of the lock head can be set to other values according to the position of the limiting part on each lock head and the action requirement of the shielding piece.
The lock cylinder of the first lock head 21 is provided with a lock plate 40, the lock cylinder of the second lock head 22 is provided with a gear 25, and both the lock plate 40 and the gear 25 can synchronously rotate with the corresponding lock cylinders. The rack bar 30 includes a plate-shaped shielding portion 31 and a strip-shaped rack portion 32, the shielding portion 31 is used for shielding the operation hole of the switch cabinet, and the rack portion 32 is provided with engaging teeth engaged with the gear 25. A gap is formed between the shielding portion 31 and the rack portion 32, the housing 10 is provided with a switch cabinet state indicating hole 14 corresponding to the gap, the structure is compact, and the state of the switch cabinet can be observed conveniently, the lock plate 40 has a rack blocking portion 41 which is in blocking fit with the end portion of the rack portion 32 close to the first lock head 21 when the second lock head 22 is in a closed state, and also has an anti-rotation blocking portion 42 which is in blocking fit with the corresponding side of the width direction of the rack portion 32 to prevent the lock plate 40 from rotating in the closing direction when the second lock head 22 is in an open state, the end portion of the rack portion 32 and the rack blocking portion 41 of the lock plate 40, the corresponding side of the width direction of the rack portion 32 and the anti-rotation blocking portion 42 of the lock plate 40 form a limiting portion for preventing the second lock head 22 from opening when the first lock head 21 is closed, and blocks the first lock head 21 from being closed when the second lock head 22 is opened, and certainly, the first lock head 21 is also in an open state when the second lock head 22 is opened.
In order to avoid the position of the lock plate 40 from changing under the factors of vibration, gravity and the like, the front shell 11 is provided with a ball mounting groove 51, balls 52 are arranged in the ball mounting groove 51, springs 53 are arranged between the balls 52 and the groove walls of the ball mounting groove 51, and the springs 53 are provided with more than two springs which are uniformly distributed along the circumferential direction of the ball mounting groove 51, so that the flexible action of the balls 52 can be ensured, and the balls 52 are prevented from being clamped due to the deflection of stress; correspondingly, the lock plate 40 is provided with two positioning holes for the tops of the balls 52 to be inserted into, and the positioning holes include a closing positioning hole 44 corresponding to the closed state of the first lock head 21 and an opening positioning hole 43 corresponding to the open state of the first lock head 21, so that when the lock plate 40 is rotated to the closed state or the open state, the elastic pressing member formed by the balls 52 and the springs 53 can position the lock plate 40. Of course, in other embodiments, the balls 52 may be disposed on the lock plate 40, and the positioning holes may be disposed on the housing 10; in other embodiments, the elastic pressing member may be replaced with other forms, such as an elastic arm having a protruding engagement portion corresponding to the positioning hole.
The lock core of the second lock head 22 is provided with a shifting plate 54, and the shifting plate forms a limiting plate which is used for corresponding to an operating shaft limiting body on the power supply opening and closing operating shaft. When the switch cabinet is in a closing state, the shifting plate 54 is matched with an operating shaft limiting body on a power supply opening and closing operating shaft in the switch cabinet to prevent the second lock head from rotating towards a closing direction, so that a key on the second lock head is prevented from being pulled out. When the switch cabinet is in a switching-off state, the shifting plate 54 is disengaged from the operating shaft limiting body on the power supply switching-on and switching-off operating shaft in the switch cabinet, the second lock head can rotate towards the closing direction, and a key on the second lock head can be pulled out when the second lock head rotates to the closing state.
The invention discloses a use mode of a switch cabinet program lock, which comprises the following steps: the switch cabinet program lock is arranged on one of the four switch cabinets, the switch cabinet locks with single lock heads are arranged on the other three switch cabinets, when the switch cabinet with the switch cabinet program lock is in a switching-off state, two keys 24 are respectively inserted into key holes 23 of a first lock head 21 and a second lock head 22, the key 24 of the first lock head 21 is firstly rotated by 30 degrees anticlockwise to an opening state (according to the direction shown in figure 1), the key 24 drives the lock plate 40 to rotate, the lock plate 40 is positioned through a ball 52 and a spring 53 after the key 24 rotates to the position, and at the moment, the key 24 cannot be pulled out from the first lock head 21. After the locking plate 40 rotates to the right position, the locking plate does not stop the toothed plate 30 any more, at this time, the key 24 on the second lock head 22 can rotate clockwise to drive the gear 25, further drive the toothed plate 30 to move towards the first lock head 21, rotate 180 degrees to expose the avoiding hole 13 after the locking plate is in the open state, at this time, the switch of the switch cabinet can be operated, the key 24 of the first lock head 21 cannot rotate towards the closed state through the limitation of the toothed plate 30 on the locking plate 40. Through the spacing between key and the tapered end, two keys can not be taken out at this moment. The switch cabinet can be switched on or switched off through the avoiding hole 13, and the switch state can be observed through the switch cabinet state indicating hole 14 during operation.
If the key needs to be taken away, the switch cabinet provided with the switch cabinet procedure lock needs to be opened, the key 24 of the second lock head 22 is rotated 180 degrees anticlockwise to be in a closed state, the toothed plate 30 moves towards the avoiding hole 13 to shield an operation hole of the switch cabinet, and the key 24 on the second lock head 22 can be taken out at the moment. Then, the key 24 on the first lock head 21 is rotated clockwise by 30 degrees to a closed state, the key drives the lock plate 40 to rotate, the lock plate 40 is positioned through the ball 52 and the spring 53 after the key is rotated to the position, and at the moment, the key 24 on the first lock head 21 can be pulled out. At this time, the second lock head 22 cannot be operated by the limit of the lock plate 40 to the tooth plate 30. The switch-on operation can be carried out on other switch cabinets by using the removed key, and the switch cabinet with the removed key is in the switch-off state inevitably.
In the above embodiment, a position limiting portion is disposed between the tooth plates 30 of the first lock head 21 and the second lock head 22. In other embodiments of the present invention, a limiting portion for blocking the opening of the next lock when the previous lock is closed and blocking the closing of the previous lock when the next lock is opened may be disposed between the two locks, and the form of the blocking portion may be replaced by other forms, for example, as shown in fig. 8, the left side is the second lock 22, the right side is the first lock 21, the second lock 22 is provided with the second closed state blocking portion 63 and the second open state blocking portion 64, the first lock 21 is provided with the first closed state blocking portion 61 and the first open state blocking portion 62, when the two locks are in the closed state (shown in fig. 8), the first closed state blocking portion 61 blocks the second closed state blocking portion 63, so as to prevent the second lock 22 from rotating counterclockwise to open (in the direction shown in fig. 8), and after sequentially rotating the first lock 21 and rotating counterclockwise to open the second lock 22, the second open state stopper 64 stops the first open state stopper 62 to prevent the first lock cylinder 21 from being closed by rotating counterclockwise. In addition, in other embodiments of the invention, more than three lock heads can be arranged according to the use requirements. In addition, in other embodiments of the present invention, the lock cylinder limiting body on the lock cylinder of the final lock head, which is used for corresponding to the operating shaft limiting body on the power switching-on/off operating shaft, may also be replaced by other forms according to the structure of the operating shaft limiting body, for example, the forms adopted in the patents in the background art.
In the above embodiment, the switch cabinet program lock includes the housing 10, and the housing 10 is provided with the avoiding hole 13 corresponding to the operation hole on the switch cabinet. Also, in other embodiments, the shield could be replaced with other forms, such as a shutter that rotates with the lock cylinder as used in the background art patents.

Claims (4)

1. The switch cabinet program lock comprises a lock head with an opening state and a closing state and a shielding piece for shielding an operation hole of a switch cabinet, wherein a key of the lock head can be pulled out only when the lock head is in the closing state, and the switch cabinet program lock is characterized in that more than two lock heads are arranged, the lock heads comprise last-stage lock heads in transmission connection with the shielding piece, and the shielding piece is used for shielding the operation hole when the last-stage lock heads are closed and exposing the operation hole when the last-stage lock heads are opened; the lock cylinder of the final lock head is provided with a lock cylinder limiting body corresponding to an operating shaft limiting body on a power supply opening and closing operating shaft, and the lock cylinder limiting body is a limiting plate vertically fixed on the inner end face of the lock cylinder; for the condition that only two lock heads exist, a limiting part used for being matched with each other is arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the lock head adjacent to the last-stage lock head and the last-stage lock head; for the condition of more than three lock heads, limiting parts used for mutual matching are arranged between the lock head adjacent to the last-stage lock head and the shielding piece or between the last-stage lock head and two adjacent lock heads except the last-stage lock head, and the limiting parts are used for blocking the opening of the next lock head when the previous lock head is closed and blocking the closing of the previous lock head when the next lock head is opened.
2. The switchgear program lock according to claim 1, characterized in that a gear is provided on the lock cylinder of the last lock cylinder, and the shield is a toothed plate cooperating with the gear.
3. The switchgear program lock according to claim 2, characterized in that the switchgear program lock comprises a housing, and the housing is provided with an avoiding hole corresponding to the operation hole of the switchgear.
4. The switchgear program lock according to claim 3, wherein the rack plate includes a plate-shaped shielding portion and a strip-shaped rack portion, a gap is formed between the shielding portion and the rack portion, and a switchgear state indicating hole corresponding to the gap is formed in the housing.
CN201910310548.9A 2017-01-17 2017-01-17 Switch cabinet program lock Active CN110047671B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910310548.9A CN110047671B (en) 2017-01-17 2017-01-17 Switch cabinet program lock
CN201710031193.0A CN106710912B (en) 2017-01-17 2017-01-17 Switchgear procedure lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910310548.9A CN110047671B (en) 2017-01-17 2017-01-17 Switch cabinet program lock

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201710031193.0A Division CN106710912B (en) 2017-01-17 2017-01-17 Switchgear procedure lock

Publications (2)

Publication Number Publication Date
CN110047671A CN110047671A (en) 2019-07-23
CN110047671B true CN110047671B (en) 2021-03-05

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CN201910310548.9A Active CN110047671B (en) 2017-01-17 2017-01-17 Switch cabinet program lock
CN201710031193.0A Active CN106710912B (en) 2017-01-17 2017-01-17 Switchgear procedure lock

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Application Number Title Priority Date Filing Date
CN201710031193.0A Active CN106710912B (en) 2017-01-17 2017-01-17 Switchgear procedure lock

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201392995Y (en) * 2009-04-20 2010-01-27 北京合纵科技股份有限公司 Either-or interlocking device for double power switch cabinets
CN104471806A (en) * 2012-07-13 2015-03-25 三菱电机株式会社 Switch gear
CN104617509A (en) * 2015-02-13 2015-05-13 江苏省电力公司东台市供电公司 Safety protection lock for handcart moving out from 10KV built-in cabinet of transformer substation
WO2015143521A1 (en) * 2014-03-28 2015-10-01 Melquisedec Francisquini Safety device for locking and actuating electrical connectors arranged in a withdrawable mcc drawer
CN206432169U (en) * 2017-01-17 2017-08-22 许继集团有限公司 A kind of switch cubicle procedure lock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201392995Y (en) * 2009-04-20 2010-01-27 北京合纵科技股份有限公司 Either-or interlocking device for double power switch cabinets
CN104471806A (en) * 2012-07-13 2015-03-25 三菱电机株式会社 Switch gear
WO2015143521A1 (en) * 2014-03-28 2015-10-01 Melquisedec Francisquini Safety device for locking and actuating electrical connectors arranged in a withdrawable mcc drawer
CN104617509A (en) * 2015-02-13 2015-05-13 江苏省电力公司东台市供电公司 Safety protection lock for handcart moving out from 10KV built-in cabinet of transformer substation
CN206432169U (en) * 2017-01-17 2017-08-22 许继集团有限公司 A kind of switch cubicle procedure lock

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CN106710912A (en) 2017-05-24
CN110047671A (en) 2019-07-23
CN106710912B (en) 2019-05-21

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Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue

Patentee after: XJ Group Corp.

Patentee after: Xuji delischer Electric Co.,Ltd.

Patentee after: STATE GRID CORPORATION OF CHINA

Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue

Patentee before: XJ Group Corp.

Patentee before: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC Co.,Ltd.

Patentee before: STATE GRID CORPORATION OF CHINA