CN202696024U - Interlocking device of centrally installed cabinet earthing switch and cabinet back door - Google Patents
Interlocking device of centrally installed cabinet earthing switch and cabinet back door Download PDFInfo
- Publication number
- CN202696024U CN202696024U CN 201220235912 CN201220235912U CN202696024U CN 202696024 U CN202696024 U CN 202696024U CN 201220235912 CN201220235912 CN 201220235912 CN 201220235912 U CN201220235912 U CN 201220235912U CN 202696024 U CN202696024 U CN 202696024U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- back door
- operating axis
- earthed switch
- cabinet back
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an interlocking device of a centrally installed cabinet earthing switch and a cabinet back door. The interlocking device comprises the cabinet back door, a cabinet body side plate, and an earthing switch operation shaft, wherein the earthing switch operation shaft is sleeved with a locking sleeve, and at least two horizontal bars are fixed on two sides of the locking sleeve. The horizontal bars are mutually parallel, and penetrate through the cabinet body side plate. A portion of each horizontal bar placed between the cabinet body side plate and the cabinet body back door is sleeved with a compression spring. Besides, the end portion of each horizontal bar is provided with a convex edge used for fixing the compression spring. The end portion of the earthing switch near the cabinet body side plate is provided with an L-shaped lock hook, and a rectangle lock hole matched with the L-shaped lock hook is arranged on the cabinet back door. A portion of the earthing switch between the lock sleeve and the cabinet back door is provided with a spline, and the lock sleeve is provided with a spline groove matched with the spline. The interlocking device is simple in structure, convenient to operate, strong in reliability, capable of achieving bidirectional interlocking function of the cabinet body back door and the earthing switch, capable of preventing wrong operation effectively, and capable of avoiding accident happening and guaranteeing safety of staff and equipment.
Description
Technical field
The utility model relates to a kind of interlock, is specifically related to the interlock at a kind of central cabinet grounding switch and cabinet back door.
Background technology
Middle-placed switch cabinet is that a kind of circuit breaker is the controller switching equipment of handcart-type, and cabinet body structure is divided into three layers, and the rear, upper strata is bus-bar room, and the place ahead, upper strata is the control room, and the middle level is the circuit breaker cart chamber, and lower floor is the cable vault.The earthed switch that is installed on the cable vault also is indispensable key components in the controller switching equipment; when needs carry out internal maintenance and maintenance to power distribution cabinet; earthed switch can be with the primary circuit reliable ground of controller switching equipment load-side, thus protection personal safety and system safety.Therefore, the opening and closing at the divide-shut brake of earthed switch and cabinet back door must consist of corresponding interlock connection: before earthed switch did not close a floodgate, the cabinet back door can not be opened; And after the cabinet door is opened, also do not shut before, between earthed switch can not divide the operation.
But the interlocking device at existing central cabinet grounding switch and cabinet back door all comes with some shortcomings, the operating procedure trouble is loaded down with trivial details, the interlocking unreliability, easily misoperation, in case in the situation that earthed switch is not opened the cabinet back door between closing, perhaps earthed switch is brought hidden trouble will for personal safety and device security by separating brake after the cabinet door is opened.
The utility model content
The purpose of this utility model is to provide the interlock at a kind of central cabinet grounding switch and cabinet back door, and the interlock at described central cabinet grounding switch and cabinet back door is simple in structure, easy to operate, and reliability is strong.
For achieving the above object, the technical solution of the utility model is the interlock at a kind of central cabinet grounding switch of design and cabinet back door, comprise cabinet back door, side cabinet and earthed switch operating axis, the earthed switch operating axis is set with lock tube, the both sides of lock tube are fixed with at least two cross bars, and each cross bar is parallel to each other, and cross bar runs through side cabinet, the part that cross bar is positioned between side cabinet and cabinet back door is set with Compress Spring, and the end of cross bar is provided with for the fixing convex edge of Compress Spring; The earthed switch operating axis is provided with L shaped latch hook near the end of side cabinet, offers the strip lockhole that matches with L shaped latch hook at the cabinet back door; The part that the earthed switch operating axis is positioned between lock tube and cabinet back door is provided with spline, and lock tube is provided with the keyway with this spline fitted.
Preferably, the quantity of described cross bar is two.
Preferably, described two cross bars are take the earthed switch operating axis as the axial symmetry setting.
Preferably, described L shaped latch hook is comprised of lock shaft and the shank of the key of split setting, and wherein lock shaft is fixedly connected with the earthed switch operating axis is coaxial, shank of the key is perpendicular to lock shaft, one end of shank of the key is provided with connecting hole, and lock shaft passes connecting hole, and by a bolt lock shaft and shank of the key is locked; The strip lockhole of described cabinet cabinet door cooperates with shank of the key.
Preferably, described cabinet back door is provided with the axle bed that matches with the earthed switch operating axis.
The utility model is not before earthed switch closes a floodgate, the cabinet back door is blocked and can't be opened by L shaped latch hook, at this moment, spline on the earthed switch operating axis does not contact with keyway on the lock tube, the earthed switch operating axis can circumferentially rotate, cross bar is pressed by the cabinet back door, and its Compress Spring is in the state of compression; When the earthed switch combined floodgate, L shaped latch hook follows the earthed switch operating axis to turn to the position that its part outside the cabinet back door can be passed the strip lockhole, and cabinet cabinet door can be opened; After cabinet cabinet door is opened, before cabinet cabinet door is not also shut again, Compress Spring promotes cross bar and moves, driving lock tube moves to side cabinet, keyway on the lock tube contacts cooperation with spline on the earthed switch operating axis, the earthed switch operating axis is locked and can't rotate, thereby can't carry out the grounding switch tripping operation; Only after the cabinet back door is shut, lock tube is pushed away, the earthed switch operating axis just can unlock, and just can carry out the operation of grounding switch tripping.Therefore, the utility model can be realized cabinet back door and the two-way interlock of earthed switch, effectively prevents misoperation, avoids having an accident protection personnel and device security.
Lock shaft and shank of the key consist of dismountable annexation, and its effect is: when the abnormal conditions that the appearance of earthed switch operating axis can not be rotated, can turn on bolt, pull down shank of the key, thereby can under special emergency the cabinet back door be opened.
Axle bed can be used for supported grounding switching manipulation axle.
Advantage of the present utility model and beneficial effect are: the interlock that a kind of central cabinet grounding switch and cabinet back door are provided; the interlock at described central cabinet grounding switch and cabinet back door is simple in structure; easy to operate, reliability is strong, can realize the interlock that cabinet back door and earthed switch are two-way; effectively prevent misoperation; avoid having an accident, protection personnel and device security, and reasonable in design; easy to use, have good market popularization value.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection range of the present utility model with this.
The technical scheme of the utility model implementation is:
The interlock at a kind of central cabinet grounding switch and cabinet back door 1, comprise cabinet back door 1, side cabinet 2 and earthed switch operating axis 3, earthed switch operating axis 3 is set with lock tube 4, the both sides of lock tube 4 are fixed with two cross bars that are parallel to each other 5, described two cross bars 5 are take earthed switch operating axis 3 as the axial symmetry setting, cross bar 5 runs through side cabinet 2, the part that cross bar 5 is positioned at 1 at side cabinet 2 and cabinet back door is set with Compress Spring 6, and the end of cross bar 5 is provided with for the fixing convex edge of Compress Spring 6; Earthed switch operating axis 3 is provided with L shaped latch hook near the end of side cabinet 2, offers the strip lockhole that matches with L shaped latch hook at cabinet back door 1; The part that earthed switch operating axis 3 is positioned at 1 at lock tube 4 and cabinet back door is provided with spline 7, and lock tube 4 is provided with the keyway 8 that cooperates with this spline 7.Described L shaped latch hook is comprised of lock shaft 9 and the shank of the key 10 of split setting, wherein lock shaft 9 and earthed switch operating axis 3 coaxial being fixedly connected with, shank of the key 10 is perpendicular to lock shaft 9, and an end of shank of the key 10 is provided with connecting hole, lock shaft 9 passes connecting hole, and by a bolt lock shaft 9 and shank of the key 10 is locked; The strip lockhole of described cabinet cabinet door cooperates with shank of the key 10.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. the interlock at a central cabinet grounding switch and cabinet back door, comprise cabinet back door, side cabinet and earthed switch operating axis, it is characterized in that, the earthed switch operating axis is set with lock tube, the both sides of lock tube are fixed with at least two cross bars, and each cross bar is parallel to each other, and cross bar runs through side cabinet, the part that cross bar is positioned between side cabinet and cabinet back door is set with Compress Spring, and the end of cross bar is provided with for the fixing convex edge of Compress Spring; The earthed switch operating axis is provided with L shaped latch hook near the end of side cabinet, offers the strip lockhole that matches with L shaped latch hook at the cabinet back door; The part that the earthed switch operating axis is positioned between lock tube and cabinet back door is provided with spline, and lock tube is provided with the keyway with this spline fitted.
2. the interlock at central cabinet grounding switch according to claim 1 and cabinet back door is characterized in that, the quantity of described cross bar is two.
3. the interlock at central cabinet grounding switch according to claim 2 and cabinet back door is characterized in that, described two cross bars are take the earthed switch operating axis as the axial symmetry setting.
4. the interlock at central cabinet grounding switch according to claim 1 and cabinet back door, it is characterized in that, described L shaped latch hook is comprised of lock shaft and the shank of the key of split setting, wherein lock shaft is fixedly connected with the earthed switch operating axis is coaxial, shank of the key is perpendicular to lock shaft, one end of shank of the key is provided with connecting hole, and lock shaft passes connecting hole, and by a bolt lock shaft and shank of the key is locked; The strip lockhole of described cabinet cabinet door cooperates with shank of the key.
5. the interlock at central cabinet grounding switch according to claim 1 and cabinet back door is characterized in that, described cabinet back door is provided with the axle bed that matches with the earthed switch operating axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235912 CN202696024U (en) | 2012-05-23 | 2012-05-23 | Interlocking device of centrally installed cabinet earthing switch and cabinet back door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235912 CN202696024U (en) | 2012-05-23 | 2012-05-23 | Interlocking device of centrally installed cabinet earthing switch and cabinet back door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696024U true CN202696024U (en) | 2013-01-23 |
Family
ID=47551587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235912 Expired - Fee Related CN202696024U (en) | 2012-05-23 | 2012-05-23 | Interlocking device of centrally installed cabinet earthing switch and cabinet back door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-05-23 CN CN 201220235912 patent/CN202696024U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104617509B (en) * | 2015-02-13 | 2024-02-23 | 江苏省电力公司东台市供电公司 | Safety protection lock for 10kV centrally installed switchgear handcart of transformer substation after moving out of cabinet body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |