CN201398028Y - Safety protection mechanism for medium cupboard - Google Patents
Safety protection mechanism for medium cupboard Download PDFInfo
- Publication number
- CN201398028Y CN201398028Y CN2009200719137U CN200920071913U CN201398028Y CN 201398028 Y CN201398028 Y CN 201398028Y CN 2009200719137 U CN2009200719137 U CN 2009200719137U CN 200920071913 U CN200920071913 U CN 200920071913U CN 201398028 Y CN201398028 Y CN 201398028Y
- Authority
- CN
- China
- Prior art keywords
- lock
- earthing switch
- door
- cable room
- room door
- 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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- Switch Cases, Indication, And Locking (AREA)
Abstract
A novel and simple safety protection mechanism for a medium cupboard relates to an interlock mechanism combing a lock and a spring with the earthing switch, the casing and the cable room door of the medium cupboard, so as to realize the safety protection function. When the safety protection mechanism is used, the spring is placed in a square hole at one end of the lock to insert the earthing switch through shaft rotating, and the other end of the lock is placed in the locking hole on the casing of the medium cupboard; when the cable room door is closed, the door drives the lock to keep away from the lock hole of the casing, so that the earthing switch can be operated normally; when the earthing switch is off, the lock rotates along with the earthing switch by 90 degrees, and the end part of the lock rotates to the position forming a right angle with the lock hole of the cable room door to lock the door; when the earthing switch is on, the end part of the lock rotates along with the earthing switch to a position obtaining consistent direction with the lock hole of the cable room door, and the door can be opened as well as closed; when the cable room door is opened, the lock is resetown to the effect of the spring, a segment of in the middle the lock is reset into the lock hole of the casing, the rotation of the lock is limited and the earthing switch can not be operated. The protection mechanism can ensure that the earthing switch is required to be turned on before the cable room door is opened, the earthing switch can not be operated when the cable room door is opened, andthe cable room door is required to be closed before the earthing switch is operated. Therefore, when the cable room door is opened, the earthing switch is undoubtedly in an off state, and the operation of the earthing switch is locked, thereby preventing the condition that the high-voltage parts in the cable room are electrified when the cable room door is opened, and eliminating the hazards.
Description
Affiliated technical field
The utility model is a kind of novel easy security protection mechanism that is used for mid-cabinet, and the charged situation of its internal high pressure parts when particularly it can prevent that mid-cabinet cable vault door from opening is to eliminate the accident potential that the generation personnel get an electric shock accidentally.
Background technology
The function of security protection mechanism is on the present mid-cabinet cable vault door: just can close when earthed switch is in the gate-dividing state circuit breaker and the cable vault's door of not opening, touch live part in the mid-cabinet cable vault to prevent personnel.But, when being in "on" position, opens again under the situation of cable vault's door by earthed switch, and still can the actuating earthed switch.If the actuating earthed switch separating brake and the circuit breaker that closes will make cable vault's high voltage component charged, the security incident hidden danger that this just exists personnel to get an electric shock accidentally this moment.Therefore need the security protection mechanism on the more perfect simple and reliable again mid-cabinet of the design function cable vault door.
Summary of the invention
The defective of high-tension electricity appears in inside when opening in order to overcome mid-cabinet cable vault door, the utility model has designed a kind of novel easy mid-cabinet security protection mechanism, and its function of safety protection is: open that must close a floodgate earthed switch earlier in front of the door in the cable vault, cable vault's door be opened the back earthed switch and can not carry out must closing cable vault's door before actuating, the earthed switch actuating.Earthed switch must be in "on" position and its actuating is locked when guaranteeing thus that cable vault's door is opened, and its inside high-tension electricity can not occur when cable vault's door was opened.
The technical solution adopted in the utility model is: with a special latch fitting and a spring, be combined into interlocking device and realize function of safety protection with the lockhole of earthed switch rotating shaft, housing and cable vault's door of mid-cabinet itself.Only mechanism element need be put into correspondence position successively and do not needed fastening during assembling.One end of latch fitting is just as square tube, and its square hole size is a bit larger tham earthed switch rotating shaft squared ends, and the earthed switch roller end is inserted in the latch fitting square hole, and a spring is arranged between the two, and latch fitting axially can be relative movable with the turning to interlock of earthed switch rotating shaft.The other end of latch fitting is a long waist shaped, its overall dimension is slightly smaller than rectangular lockhole (or the long waist shaped lockhole of mid-cabinet cable vault door, down together), when it forwards to the rectangular lockhole of cable vault's door when equidirectional, cable vault's door can opening and closing, and when it forwarded rectangular lockhole with cable vault's door to and meets at right angles direction, cable vault's door can not opening and closing.The one section overall dimension in the middle part of latch fitting is slightly smaller than the square lockhole of mid-cabinet housing, and when this section extend in the square lockhole of housing, the rotation of latch fitting was subjected to it and stops, and when this section avoided the square lockhole of housing, the rotation of latch fitting was not just stopped by it.Middle part another section overall dimension of latch fitting makes and gets back to the tram when latch fitting resets greater than the square lockhole of mid-cabinet housing.Course of action of the present utility model is: when closing cable vault's door, door promotes latch fitting, makes its middle part avoid square lockhole on the housing, and earthed switch just can carry out normal actuating; During the earthed switch separating brake, latch fitting 90 ° of deflections thereupon, its long waist shaped end forwards rectangular lockhole with cable vault's door to and meets at right angles and pin cable vault's door; When earthed switch closed a floodgate, latch fitting long waist shaped end forwarded to consistent with the rectangular lockhole direction of cable vault's door thereupon, and can open or close cable vault's door this moment; When opening cable vault's door, latch fitting is resetted by the spring force effect, and one section at its middle part is got back in the square lockhole of housing, and earthed switch also just can not carry out actuating.
The beneficial effects of the utility model are, technical scheme novelty, easy, and body function is perfect, reliable, and the charged situation of its internal high pressure parts in the time of preventing that mid-cabinet cable vault door from opening has also just been eliminated the accident potential of the careless false touch of personnel cable vault high-tension electricity.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural design of the present utility model and installation diagram.
1. earthed switch rotating shafts among the figure, 2. latch fitting, 3. spring, 4. mid-cabinet housing, 5. cable vault's door, 6. housing side's lockhole, the 7. rectangular lockhole of cable vault's door.
Fig. 2 is the relative position elevational schematic view of housing side's lockhole (6), the rectangular lockhole of cable vault's door (7) and latch fitting (2) among Fig. 1.
Fig. 3 is latch fitting (2) upward view among Fig. 1.
Fig. 4 is latch fitting (2) cutaway view among Fig. 1.
Fig. 5 is latch fitting (2) vertical view among Fig. 1.
Embodiment
In Fig. 1, put into spring (3) in the square hole of latch fitting (2) one ends, the squared ends of earthed switch rotating shaft (1) is inserted, and the other end of latch fitting (2) is placed on interior the getting final product of square lockhole (6) of mid-cabinet housing (4) again.When closing cable vault's door (5), door (5) advances latch fitting (2) to avoid the square lockhole (6) of mid-cabinet housing (4), and the side's of disengaging lockhole (6) stops that to what latch fitting (2) rotated earthed switch (1) just can carry out normal actuating; When earthed switch (1) separating brake, latch fitting (2) 90 ° of deflections thereupon, its long waist shaped end forwards to and meets at right angles with the rectangular lockhole of cable vault's door (5) (7) and pin cable vault's door (5); When earthed switch (1) closed a floodgate, latch fitting (2) long waist shaped end forwarded to consistent with rectangular lockhole (7) direction of cable vault's door (5) thereupon, and cable vault's door this moment (5) can open and close; When opening cable vault's door (5), latch fitting (2) is resetted by the elastic force effect of spring (3), and one section at its middle part resets in the square lockhole (6) of housing (4), and the rotation of latch fitting this moment (2) is stopped that earthed switch (1) also just can not carry out actuating.
Claims (2)
1, a kind of security protection mechanism of mid-cabinet, form by latch fitting, spring and earthed switch rotating shaft, housing lockhole, back door lockhole, it is characterized in that: the mid-cabinet housing side of having lockhole, cable vault's door has rectangular lockhole or long waist shaped lockhole, one end of latch fitting has square hole, and the other end of latch fitting is a long waist shaped, the middle part of latch fitting be two sections square, wherein one section overall dimension is slightly smaller than the lockhole of housing, and another section overall dimension is greater than the lockhole of housing.
2, the security protection mechanism of a kind of mid-cabinet according to claim 1 is characterized in that: earthed switch rotating shaft, spring, latch fitting, housing interlocking square hole sequential combination only need correspondence placement successively and do not need fastening between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200719137U CN201398028Y (en) | 2009-05-08 | 2009-05-08 | Safety protection mechanism for medium cupboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200719137U CN201398028Y (en) | 2009-05-08 | 2009-05-08 | Safety protection mechanism for medium cupboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201398028Y true CN201398028Y (en) | 2010-02-03 |
Family
ID=41620558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200719137U Expired - Fee Related CN201398028Y (en) | 2009-05-08 | 2009-05-08 | Safety protection mechanism for medium cupboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201398028Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858937A (en) * | 2010-03-31 | 2010-10-13 | 河南省电力公司驻马店供电公司 | Anti-inadvertent touch type electricity-testing device of high voltage switch cabinet |
| CN101982865A (en) * | 2010-11-02 | 2011-03-02 | 山东鲁亿通电气设备有限公司 | Interlocking device of earthed switch operating mechanism |
| CN101882759B (en) * | 2009-05-08 | 2013-01-02 | 上海纳杰电气成套有限公司 | Back door interlocking device of high-tension switch cabinet |
| CN104203636A (en) * | 2012-03-27 | 2014-12-10 | 罗伯特·博世有限公司 | Safety device for a high-voltage system and method for safeguarding a high-voltage system |
-
2009
- 2009-05-08 CN CN2009200719137U patent/CN201398028Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882759B (en) * | 2009-05-08 | 2013-01-02 | 上海纳杰电气成套有限公司 | Back door interlocking device of high-tension switch cabinet |
| CN101858937A (en) * | 2010-03-31 | 2010-10-13 | 河南省电力公司驻马店供电公司 | Anti-inadvertent touch type electricity-testing device of high voltage switch cabinet |
| CN101858937B (en) * | 2010-03-31 | 2012-07-04 | 河南省电力公司驻马店供电公司 | Anti-inadvertent touch type electricity-testing device of high voltage switch cabinet |
| CN101982865A (en) * | 2010-11-02 | 2011-03-02 | 山东鲁亿通电气设备有限公司 | Interlocking device of earthed switch operating mechanism |
| CN104203636A (en) * | 2012-03-27 | 2014-12-10 | 罗伯特·博世有限公司 | Safety device for a high-voltage system and method for safeguarding a high-voltage system |
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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: 20100203 Termination date: 20180508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |