CN2515787Y - Mechanical interlocking device of high voltage switch cabinet earthing knife and rear cabinet door - Google Patents
Mechanical interlocking device of high voltage switch cabinet earthing knife and rear cabinet door Download PDFInfo
- Publication number
- CN2515787Y CN2515787Y CN 01274352 CN01274352U CN2515787Y CN 2515787 Y CN2515787 Y CN 2515787Y CN 01274352 CN01274352 CN 01274352 CN 01274352 U CN01274352 U CN 01274352U CN 2515787 Y CN2515787 Y CN 2515787Y
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- CN
- China
- Prior art keywords
- locking part
- projection
- action bars
- ground connection
- shape support
- 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 a mechanical interlock device for a high-voltage switch cabinet ground knife and a back cabinet door. An interlock element is arranged at one end of a ground knife function lever and is fixed with the function lever by a pin and then is inserted into a notch for the interlock element. The interlock element can move back and forth and can rotate along with the function lever. The interlock device is arranged in a C-shaped bracket; the ground knife function lever is made to pass through a hole on the lower bottom plate of the C-shaped bracket and the is connected with the interlock element; a spring is sleeved on the ground knife function lever; the C-shaped bracket is fixed on the back door frame of the high-voltage switch cabinet. A round hole is arranged on the upper part of the C-shaped bracket; grooves and limit pins are arranged on both sides of the round hole. The interlock element is a circular stepped projection; a top squeeze head is arranged on the upper part of the projection and lug bosses are arranged on both sides of the lower part of the projection; the size of the lug bosses conforms to that of the grooves on both sides of the C-shaped bracket. The projection on the interlock element is separated from the grooves on the bracket when the top squeeze head on the interlock element is compressed by the back cabinet door, or the interlock element is moved forward by the spring and the projection is embedded into the grooves on the grooves of the C-shaped bracket, hereby the ground knife function lever can not rotate and the security of the back cabinet maintenance can be guaranteed.
Description
Technical field
The utility model relates to high-tension switch cabinet and prevents mistakenly entering charged chamber, and the mechanical interlocks of electric shock casualty accident takes place.
Background technology
" five is anti-" mechanical interlocking of present domestic middle high-tension switch cabinet, mostly adopt " earthed switch operating mechanism lock multi pack is put ", rotate with ground connection cutter action bars, opening of control high-voltage board back door, close, use fairly simple, but, when realizing " preventing mistakenly entering charged chamber " function, realized that close a floodgate cable vault's door of back switch cubicle rear cabinet door of ground connection cutter could open, and rear cabinet door prevents that the function of ground connection cutter separating brake from can't realize after opening, promptly cause ground connection cutter separating brake and circuit breaker handcart can advance connection to send electricity, and rear cabinet door is opened, just there is potential safety hazard in this.
Summary of the invention
The utility model is in ground connection cutter action bars end, and a locking part is installed, and fixes with pin and action bars, inserts in the locking part notch, and locking part can move forward and backward, and can rotate with action bars, and locking part places one
In the middle of the shape support, ground connection cutter action bars certainly
The hole of shape support lower shoe is pierced into locking part and is connected, cover one spring on the ground connection cutter action bars,
The shape support is fixed on the back doorframe of high-tension switch cabinet,
Circular hole is arranged at shape support top, and the fluted and spacer pin of circular hole left and right side, locking part are a circular ladder projection, and the roof pressure head is arranged at projection top, and the bottom and arranged on left and right sides has boss, the size of boss with
The groove of shape support left and right side coincide, and after the roof pressure head on the locking part was subjected to the rear cabinet door extruding, projection on the locking part and support upper groove broke away from, otherwise spring makes the locking part reach, and projection imbeds
In the groove on the shape support, ground connection cutter action bars can not rotate; After the ground connection knife switch closed a floodgate, rear cabinet door just can be opened, and by the elastic force of spring, made the locking part reach, and the boss on the projection imbeds
In the groove of shape support, ground connection cutter operating axis can not specially rotate, and promptly the ground connection cutter can not close a floodgate, and guarantees the safety of back cabinet maintenance; That this mechanical interlocks does not change is original " five is anti-" function and component structural only increases by three, four parts, just can improve the interlocking of rear cabinet door, makes " five prevent " mechanical interlocking more safe and reliable.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model.
Accompanying drawing 2 is that the ground connection cutter action bars right side in the accompanying drawing 1 turn 90 degrees the ground connection cutter is closed a floodgate, locking part
The view that also and then turn 90 degrees.
Accompanying drawing 3 is
The front view of shape support.
Accompanying drawing 4 is vertical views of accompanying drawing 3.
Accompanying drawing 5 is front views of locking part.
Accompanying drawing 6 is vertical views of accompanying drawing 5.
Embodiment
See also shown in the accompanying drawing 1,2, in ground connection cutter action bars 8 ends, a locking part 3 is installed, locking part 3 usefulness pins 4 move with action bars 8 and cooperate, and can rotate with action bars 8, and locking part 3 places one
In the middle of the shape support 5, ground connection cutter action bars 8 certainly
The hole 14 of shape support 5 lower shoes enters the notch 18 of locking part 3 lower ends, and is fixing with action bars 8 with pin 4, cover one spring 6 on the ground connection cutter action bars 8,
Shape support 5 is fixed on the doorframe 2 at back door 1 of high-tension switch cabinet; See also shown in the accompanying drawing 3,4,
Circular hole 15 is arranged at shape support 5 tops, and circular hole 15 left and right sides fluted 9 and spacer pin 11, spacer pin 11 3 rotational angles that prevent to interlock are excessive, and support 5 sides have screw 12,13, so that fixing with back doorframe 2; See also shown in the accompanying drawing 5,6, locking part 3 is a circular ladder projection, and roof pressure head 17 is arranged at projection top, and the bottom and arranged on left and right sides has boss 16.
Claims (1)
1, a kind of high-tension switch cabinet ground connection cutter and rear cabinet door mechanical interlocks is characterized in that: in ground connection cutter action bars end, one locking part is installed, is fixed, insert in the locking part notch with pin and action bars, locking part can move forward and backward, and can rotate with action bars, and locking part places one
In the middle of the shape support, ground connection cutter action bars certainly
The hole of shape support lower shoe is pierced into locking part and is connected, cover one spring on the ground connection cutter action bars,
The shape support is fixed on the back doorframe of high-tension switch cabinet,
Circular hole is arranged at shape support top, and the fluted and spacer pin of circular hole left and right side, locking part are a circular ladder projection, and the roof pressure head is arranged at projection top, and the bottom and arranged on left and right sides has boss, the size of boss with
The groove of shape support left and right side coincide, and after the roof pressure head on the locking part was subjected to the rear cabinet door extruding, projection on the locking part and support upper groove broke away from, otherwise spring makes the locking part reach, and projection imbeds
In the groove on the shape support, ground connection cutter action bars can not rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274352 CN2515787Y (en) | 2001-12-20 | 2001-12-20 | Mechanical interlocking device of high voltage switch cabinet earthing knife and rear cabinet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274352 CN2515787Y (en) | 2001-12-20 | 2001-12-20 | Mechanical interlocking device of high voltage switch cabinet earthing knife and rear cabinet door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515787Y true CN2515787Y (en) | 2002-10-09 |
Family
ID=33679035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274352 Expired - Fee Related CN2515787Y (en) | 2001-12-20 | 2001-12-20 | Mechanical interlocking device of high voltage switch cabinet earthing knife and rear cabinet door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515787Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629524A (en) * | 2012-03-16 | 2012-08-08 | 山东卓尔电气有限公司 | Anti-misoperation knife switch |
-
2001
- 2001-12-20 CN CN 01274352 patent/CN2515787Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629524A (en) * | 2012-03-16 | 2012-08-08 | 山东卓尔电气有限公司 | Anti-misoperation knife switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021009 Termination date: 20100120 |