CN103489693B - High voltage power distributing cabinet operating axis safety interlock for overhead - Google Patents
High voltage power distributing cabinet operating axis safety interlock for overhead Download PDFInfo
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- CN103489693B CN103489693B CN201310397275.9A CN201310397275A CN103489693B CN 103489693 B CN103489693 B CN 103489693B CN 201310397275 A CN201310397275 A CN 201310397275A CN 103489693 B CN103489693 B CN 103489693B
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- control lever
- operating axis
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- interlocking shaft
- cabinet
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Abstract
The invention discloses a kind of high voltage power distributing cabinet operating axis safety interlock for overhead, comprising: be arranged on the operating axis in cabinet, operating axis is fixed with connection locking plate, connect on locking plate and be provided with bayonet socket; At cabinet internal fixtion limited location support, in limiting bracket, activity is equipped with interlocking shaft, and the rear end of interlocking shaft can be stretched in bayonet socket; The front end of control lever is fixedly connected with interlocking shaft, and the activity of the rear end of control lever can lean with back door through after ground switch mounting board, is provided with the elastic displacement device making control lever movement backward between control lever and cabinet; Advantage of the present invention is: interlocking shaft and control lever are not yielding, and operating axis locking is reliable, and the security performance of power distribution cabinet is good.
Description
Technical field
The present invention relates to the safety interlock for overhead in high voltage power distributing cabinet between operating axis and back door.
Background technology
In high voltage power distributing cabinet, the separating brake of earthed switch and feed motion normally rely on the operating axis be arranged in cabinet to control, and for ensureing the maintenance safety after opening back door, between back door and operating axis, are also provided with interlocking device, the high voltage power distributing cabinet operating axis safe interlocking mechanism of current use, a very long little axle of operation is provided with between operating axis and back door, operate little shaft length and be usually greater than 2 meters, operating little shaft end can snap in the bayonet socket be arranged on operating axis, when back door is in closed condition, operating little axle does not snap in bayonet socket, operating axis is free to rotate, operator can rotate the separating brake and the feed motion that carry out earthed switch by manipulation operation axle, when back door is in open mode, operating little shaft end snaps in bayonet socket, operating axis is locked, operator cannot carry out separating brake and the feed motion of earthed switch by rotation process axle.Because the length operating little axle is longer, make that the requirement on machining accuracy operating little axle is high, processing difficulties and in use easily flexural deformation, when back door is in open mode, the little shaft end of diastrophic operation can not snap in bayonet socket, now, the operator being positioned at Qianmen still can manipulate rotation process axle and carry out separating brake and feed motion, and this just brings potential safety hazard to the maintenance person being positioned at back door maintenance, easily causes security incident; In addition, under operating axis locks insecure situation, rotate operating axis, easily damage interlocking device.
Summary of the invention
The technical problem of solution required for the present invention is: provide that a kind of security performance is good, locking is reliable, structure simple high voltage power distributing cabinet operating axis safety interlock for overhead.
For solving the problem, the technical solution used in the present invention is: described high voltage power distributing cabinet operating axis safety interlock for overhead, comprising: be arranged on the operating axis in cabinet, operating axis is fixed with connection locking plate, connects on locking plate and is provided with bayonet socket; At cabinet internal fixtion limited location support, in limiting bracket, activity is equipped with interlocking shaft, and the rear end of interlocking shaft can be stretched in bayonet socket; The front end of control lever is fixedly connected with interlocking shaft, and the activity of the rear end of control lever can lean with back door through after ground switch mounting board, is provided with the elastic displacement device making control lever movement backward between control lever and cabinet; And when back door is opened, elastic displacement device makes control lever drive interlocking shaft to move backward, makes interlocking shaft rear end stretch in bayonet socket, thus operating axis locking can not be rotated freely; When back door is closed, back door bear against control lever rear end and overcomes the elastic force of elastic displacement device, control lever is moved forward, and drives interlocking shaft to move forward, makes interlocking shaft rear end leave bayonet socket, thus makes operating axis unlock and can rotate freely.
Further, aforesaid high voltage power distributing cabinet operating axis safety interlock for overhead, wherein, the structure of described elastic displacement device is: the rear end of control lever is provided with adjusting nut, control lever is set with spring, the two ends of spring are resisted against on adjusting nut and ground switch mounting board respectively, and the elastic force of spring makes control lever move backward.
Further, aforesaid high voltage power distributing cabinet operating axis safety interlock for overhead, wherein, the opening angle connecting locking plate upper latch notch is 90 ± 10 °.
Further, aforesaid high voltage power distributing cabinet operating axis safety interlock for overhead, wherein, is set with baton round in control lever rear end, to reduce the friction of back door and control lever rear end.
The invention has the beneficial effects as follows: the structure of interlocking shaft and control lever is simple, processing and easy for installation, in use not yielding, the combination of interlocking shaft, control lever and elastic displacement device is arranged, interlocking shaft rear end is made accurately to snap in bayonet socket, operating axis locking is reliable, and the security performance of power distribution cabinet is good.
Accompanying drawing explanation
Fig. 1 is that in high voltage power distributing cabinet operating axis safety interlock for overhead of the present invention, back door is in the structural representation closing door state.
Fig. 2 is the structural representation that in high voltage power distributing cabinet operating axis safety interlock for overhead of the present invention, back door is in open mode.
Fig. 3 is the structural representation that the A-A connecting locking plate in Fig. 2 analyses and observe.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technical solutions according to the invention are described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, high voltage power distributing cabinet operating axis safety interlock for overhead described in the present embodiment, comprise: be arranged on the operating axis 7 in cabinet, operating axis 7 is fixed with and connects locking plate 5, connect on locking plate 5 and be provided with bayonet socket 51, the opening angle of the bayonet socket 51 described in the present embodiment is 90 ± 10 °; At cabinet internal fixtion limited location support 6, in limiting bracket 6, activity is equipped with interlocking shaft 8, and the rear end of interlocking shaft 8 can be stretched in bayonet socket 51; The front end of control lever 9 is fixedly connected with interlocking shaft 8, and the rear end activity of control lever 9 can lean with back door 1 through after ground switch mounting board 2, and the control lever 9 described in the present embodiment is L shape shape; The elastic displacement device making control lever 9 movement is backward provided with between control lever 9 and cabinet; And when back door 1 is opened, elastic displacement device makes control lever 9 drive interlocking shaft 8 to move backward, makes interlocking shaft 8 rear end stretch in bayonet socket 51, thus is locked by operating axis 7 and can not rotate freely; When back door is closed, back door 1 bear against control lever 9 rear end and overcomes the elastic force of elastic displacement device, control lever 9 is moved forward, and drives interlocking shaft 8 to move forward, makes interlocking shaft 8 rear end leave bayonet socket 51, thus make operating axis 7 unlock and can rotate freely.The structure of the elastic displacement device described in the present embodiment is: the rear end of control lever 9 is provided with adjusting nut 13, control lever 9 is set with spring 12, the two ends of spring 12 are resisted against on adjusting nut 13 and ground switch mounting board 2 respectively, and the elastic force of spring 12 makes control lever 9 move backward; Baton round 14 is set with, to reduce the friction at back door 1 and control lever 9 rear end in the rear end of control lever 9.
In operation, when back door 1 is in pass door state, as shown in Figure 1, back door 1 is pressed on the rear end of control lever 9, makes control lever 9 overcome the active force of spring 12 and move forward, interlocking shaft 8 is driven to move forward, make the rear end of interlocking shaft 8 leave bayonet socket 51, in this case, the operator being positioned at Qianmen can rotate by manipulation operation axle 7, drive bevel gear 4 transfer, thus drive earthed switch axle 10 to complete separating brake and the feed motion of earthed switch, when back door 1 opened by needs, rotation process axle 7, disconnect earthed switch, now bayonet socket 51 is aimed at mutually with the rear end of interlocking shaft 8, then back door 1 is opened, under the effect of spring 12, control lever 9 outwards skids off, until the rear end of interlocking shaft 8 is stretched in bayonet socket 51, now, operating axis 7 is locked and can not freely rotate, the operator being positioned at Qianmen does not carry out separating brake and the feed motion of earthed switch by rotation process axle 7, this provides safety guarantee for service work, in addition, the structure of interlocking shaft 8 and control lever 9 is simple, processing and easy for installation, in use not yielding, interlocking shaft 8, the combination of control lever 9 and elastic displacement device is arranged, the rear end of interlocking shaft 8 can accurately be snapped in bayonet socket 51, operating axis 7 locks reliably, misoperation can not be produced, the security performance of power distribution cabinet is good.
Claims (1)
1. high voltage power distributing cabinet operating axis safety interlock for overhead, comprising: be arranged on the operating axis in cabinet, it is characterized in that: on operating axis, be fixed with connection locking plate, and connect on locking plate and be provided with bayonet socket, the opening angle connecting locking plate upper latch notch is 90 ± 10 °; At cabinet internal fixtion limited location support, in limiting bracket, activity is equipped with interlocking shaft, and the rear end of interlocking shaft can be stretched in bayonet socket; The front end of control lever is fixedly connected with interlocking shaft, and the activity of the rear end of control lever can lean with back door through after ground switch mounting board, is provided with the elastic displacement device making control lever movement backward between control lever and cabinet; And when back door is opened, elastic displacement device makes control lever drive interlocking shaft to move backward, makes interlocking shaft rear end stretch in bayonet socket, thus operating axis locking can not be rotated freely; When back door is closed, back door bear against control lever rear end and overcomes the elastic force of elastic displacement device, control lever is moved forward, and drives interlocking shaft to move forward, makes interlocking shaft rear end leave bayonet socket, thus makes operating axis unlock and can rotate freely; The structure of described elastic displacement device is: the rear end of control lever is provided with adjusting nut, control lever is set with spring, and the two ends of spring are resisted against on adjusting nut and ground switch mounting board respectively, and the elastic force of spring makes control lever move backward; Baton round is set with, to reduce the friction of back door and control lever rear end in control lever rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397275.9A CN103489693B (en) | 2013-09-05 | 2013-09-05 | High voltage power distributing cabinet operating axis safety interlock for overhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397275.9A CN103489693B (en) | 2013-09-05 | 2013-09-05 | High voltage power distributing cabinet operating axis safety interlock for overhead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103489693A CN103489693A (en) | 2014-01-01 |
| CN103489693B true CN103489693B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310397275.9A Active CN103489693B (en) | 2013-09-05 | 2013-09-05 | High voltage power distributing cabinet operating axis safety interlock for overhead |
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| CN (1) | CN103489693B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069521B (en) * | 2017-06-07 | 2024-03-15 | 河南森源电气股份有限公司 | Switch cabinet |
| CN110993420B (en) * | 2019-12-12 | 2024-08-02 | 江苏天港箱柜有限公司 | Safety interlocking device of switch cabinet |
| CN110957170B (en) * | 2019-12-12 | 2024-08-02 | 江苏天港箱柜有限公司 | Safety interlocking device for rear door of switch cabinet |
| CN111049025B (en) * | 2020-01-19 | 2020-08-25 | 淄博汇达精密电器装备有限公司 | Expandable combined power distribution cabinet with interlocking mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323156Y (en) * | 2008-12-15 | 2009-10-07 | 安徽鑫龙电器股份有限公司 | Interlocking mechanism for protecting ground switch against faulty operation |
| CN201741602U (en) * | 2009-12-17 | 2011-02-09 | 江山市森源电器有限公司 | Interlocking device of ground switch operating mechanism of central-positioned high-voltage switch cabinet |
| CN102436948A (en) * | 2011-10-08 | 2012-05-02 | 江苏天港箱柜有限公司 | Operation shaft and back door interlocking structure in electric cabinet |
| CN203456365U (en) * | 2013-09-05 | 2014-02-26 | 江苏天港箱柜有限公司 | Safety interlocking mechanism of high-voltage power distribution cabinet operation shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0512961A (en) * | 1991-07-03 | 1993-01-22 | Toshiba Toransupooto Eng Kk | Mechanical interlocking device for motor-driven circuit breaker |
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2013
- 2013-09-05 CN CN201310397275.9A patent/CN103489693B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323156Y (en) * | 2008-12-15 | 2009-10-07 | 安徽鑫龙电器股份有限公司 | Interlocking mechanism for protecting ground switch against faulty operation |
| CN201741602U (en) * | 2009-12-17 | 2011-02-09 | 江山市森源电器有限公司 | Interlocking device of ground switch operating mechanism of central-positioned high-voltage switch cabinet |
| CN102436948A (en) * | 2011-10-08 | 2012-05-02 | 江苏天港箱柜有限公司 | Operation shaft and back door interlocking structure in electric cabinet |
| CN203456365U (en) * | 2013-09-05 | 2014-02-26 | 江苏天港箱柜有限公司 | Safety interlocking mechanism of high-voltage power distribution cabinet operation shaft |
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| Publication number | Publication date |
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| CN103489693A (en) | 2014-01-01 |
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