CN202018899U - Vacuum load switch-fuse mechanical interlocking device for electric appliance combination - Google Patents
Vacuum load switch-fuse mechanical interlocking device for electric appliance combination Download PDFInfo
- Publication number
- CN202018899U CN202018899U CN201120140110XU CN201120140110U CN202018899U CN 202018899 U CN202018899 U CN 202018899U CN 201120140110X U CN201120140110X U CN 201120140110XU CN 201120140110 U CN201120140110 U CN 201120140110U CN 202018899 U CN202018899 U CN 202018899U
- Authority
- CN
- China
- Prior art keywords
- side wall
- cabinet door
- interlocking
- cabinet
- blocking lever
- 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 vacuum load switch-fuse mechanical interlocking device for an electric appliance combination. The mechanical interlocking device comprises an interlocking rod, a curved plate, and an interlocking block; an operation handle on the interlocking rod penetrates through a guide groove on the front wall of a cabinet body panel, the curved plate is fixed on an isolating operation shaft, and the rear end of the interlocking block is fixed on a cabinet body vertical beam through a spring; when a cabinet door is closed, the rear end of the left side wall of the cabinet door is propped against the front end of the interlocking block, the right end of the interlocking rod sequentially penetrates through the right side wall of the cabinet body panel and the left side wall of the cabinet door, an interlocking hole on the interlocking rod is right against the isolating closing holes on the isolating operation shaft and the front wall of the cabinet body panel, and a pin on the interlocking rod is clamped on the right side of the curved plate; and when the cabinet door is opened, the right end of the interlocking rod penetrates through the left side wall of the cabinet door and then propped against the left side wall of the interlocking block, and the operation handle is poisoned at the left end of the guide groove. The utility model has the advantages of low manufacturing cost, convenience in use and operation, reliable mechanical interlocking, and high safety performance.
Description
Technical field
The utility model relates to a kind of interlock of combined electrical apparatus.
Background technology
Existing interlock method is that combined electrical apparatus and case change (following general designation cabinet) adopt electromagnetic lock to interlock, and the potential problems of existence are: 1) on-the-spot for the open-air place of generating electricity, and there is not reliable and stable low-tension supply to offer electromagnetic lock; All be by key manual unlocking cabinet door when 2) reality is used; 3) electromagnetic lock has unsteadiness, very easily damages in the use.
Because the existence of above-mentioned condition, so when the combined electrical apparatus electrification in high voltage, the probability that operation or maintainer's mistake are swarmed in the cabinet can increase, what have an accident may also just increase, and therefore there is potential safety hazard in existing interlock method.
Summary of the invention
For solving the problems referred to above that prior art exists, the utility model provides a kind of vacuum load switch-fuse combined electric apparatus mechanical interlocks, and its technical scheme of taking is:
This device comprises blocking lever, bent plate and interlock block, operation handlebar on the blocking lever passes the gathering sill on the cabinet panel antetheca, blocking lever can be along the gathering sill move left and right, bent plate is fixed on the isolated operation axle, bent plate can rotate with the isolated operation axle, the rear end of interlock block is fixed on the cabinet vertical beam by spring, and interlock block can be realized moving forward and backward by telescopic spring; When the cabinet door is closed, the left side wall of cabinet door is close to the right side wall of cabinet panel, spring is in compressive state, the front end of the rear end roof pressure interlock block of cabinet door left side wall, the right-hand member of blocking lever passes cabinet panel right side wall and cabinet door left side wall successively, the isolation combined floodgate hole of interlocking hole on the blocking lever on isolated operation axle and the cabinet panel antetheca, the pin on the blocking lever is stuck in the right side of bent plate, and operation handlebar is positioned at the right-hand member of gathering sill; When the cabinet door was opened, spring was in stretched condition, and the right-hand member of blocking lever withstands on the left side wall of interlock block after passing cabinet door left side wall, and operation handlebar is positioned at the left end of gathering sill.
This device is taked pure mechanical conceptual, does not have any electrical interlock composition, and each locking part satisfies machinery fully and installs and operation.When the cabinet door is opened, no matter combined electrical apparatus is in which kind of state (closing a floodgate or separating brake), and isolation knife all can not be operated, and the primary conductive loop can not connected, the combined electrical apparatus structure is that isolation knife side and on-load switch side are the branch body structures in addition, thus personnel to pass in and out the hyperbaric chamber all can be safe.When circuit need be connected operation, at first must close the cabinet door and just can carry out next step operation; This moment, the cabinet door was closed, because blocking lever is moved isolation can be closed a floodgate.The operation thereby the assurance on-load switch closes a floodgate subsequently.Otherwise, when needs are opened the maintenance of cabinet door, only making high-pressure side part outage, the cabinet door just can be opened.This device has improved the fail safe of equipment and has guaranteed maintainer's personal safety.
When stating target in realization, combined electrical apparatus and interlock are two independently mechanisms, be not subjected to restriction separately, can be by combined electrical apparatus producer or cabinet producer either party processing, combined electrical apparatus and cabinet interlocking cost of manufacture are relatively stable, replace electromagnetic lock and part secondary connection by several simple machined piece, cost can not increase on original basis.
Therefore the utlity model has the characteristics that production cost is low, easy for operation, mechanical interlocking is reliable, security performance is high.
Description of drawings
Fig. 1 is the structural representation of the utility model when the cabinet door is opened;
Fig. 2 is the structural representation of the utility model when the cabinet door is closed.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As depicted in figs. 1 and 2, the operation handlebar 4 on the blocking lever 1 passes the gathering sill 12 on cabinet panel 5 antethecas, and the body of rod of blocking lever 1 is stuck in two cabinet guide pads 15 simultaneously, makes blocking lever 1 be only limited to move left and right.Bent plate 2 is fixed on the isolated operation axle 6, and the rear end of interlock block 3 is fixed on the cabinet vertical beam 8 by spring 7.
When on-load switch be in the separating brake position and isolation is opened, when cabinet door 9 is opened simultaneously, spring 7 is upheld interlock block 3 is moved forward, the right-hand member of blocking lever 1 withstands on the left side wall of interlock block 3 after passing cabinet door 9 left side walls, operation handlebar 4 is positioned at the left end of gathering sill 12, this moment, blocking lever 1 can not move left and right, interlocking hole 10 can't be over against isolated operation axle 6, so combined electrical apparatus can not carry out closing operation.
After cabinet door 9 closures, the left side wall of cabinet door 9 is close to the right side wall of cabinet panel 5, the front end of the rear end roof pressure interlock block 3 of cabinet door 9 left side walls, interlock block 3 is moved backward, spring 7 compression, 4 right-hand members that move to gathering sill 12, and then blocking lever 1 moves right and passes cabinet door 9 left side walls by manual operation, interlock this moment hole 10 aligns with isolation combined floodgate hole 13 on isolated operation axle 6 and cabinet panel 5 antethecas, guarantees to isolate and closes a floodgate.After isolating combined floodgate, by rotation drive bent plate 2 rotations of isolated operation axle 6, thereby the pin that makes 11 is stuck in the right side of bent plate 2, locking pin 11 can not move blocking lever 1, can't operation interlocking bar 1, cabinet door 9 can not be opened, and this moment, on-load switch can close a floodgate, and the realization high-pressure side is sent.
After on-load switch closed a floodgate, the interlock plate 14 that drives between isolation knife and on-load switch moved up, locking interlocking hole 10, and isolation can not be operated.
When opening cabinet door 9 once more, at first to make the on-load switch separating brake, interlock plate 14 falls, interlocking hole 10 is opened, and isolation knife can be operated separately, by rotation drive bent plate 2 rotations of isolated operation axle 6, thereby the pin that makes 11 releases, blocking lever 1 can be moved to the left, and realization cabinet door 9 is opened.
By above operating procedure, guaranteed under cabinet door 9 open modes, can not carry out closing operation; Otherwise on-load switch can not be opened cabinet door 9 after closing a floodgate.
Claims (1)
1. vacuum load switch-fuse combined electric apparatus mechanical interlocks, comprise blocking lever (1), bent plate (2) and interlock block (3), it is characterized in that: the operation handlebar (4) on the blocking lever (1) passes the gathering sill (12) on cabinet panel (5) antetheca, blocking lever (1) can be along gathering sill (12) move left and right, bent plate (2) is fixed on the isolated operation axle (6), bent plate (2) can rotate with isolated operation axle (6), the rear end of interlock block (3) is fixed on the cabinet vertical beam (8) by spring (7), and interlock block (3) can move forward and backward by flexible realization of spring (7); When cabinet door (9) is closed, the left side wall of cabinet door (9) is close to the right side wall of cabinet panel (5), spring (7) is in compressive state, the front end of the rear end roof pressure interlock block (3) of cabinet door (9) left side wall, the right-hand member of blocking lever (1) passes cabinet panel (5) right side wall and cabinet door (9) left side wall successively, the isolation combined floodgate hole (13) of interlocking hole (10) on the blocking lever (1) on isolated operation axle (6) and cabinet panel (5) antetheca, pin (11) on the blocking lever (1) is stuck in the right side of bent plate (2), and operation handlebar (4) is positioned at the right-hand member of gathering sill (12); When cabinet door (9) when opening, spring (7) is in stretched condition, and the right-hand member of blocking lever (1) withstands on the left side wall of interlock block (3) after passing cabinet door (9) left side wall, and operation handlebar (4) is positioned at the left end of gathering sill (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120140110XU CN202018899U (en) | 2011-05-05 | 2011-05-05 | Vacuum load switch-fuse mechanical interlocking device for electric appliance combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120140110XU CN202018899U (en) | 2011-05-05 | 2011-05-05 | Vacuum load switch-fuse mechanical interlocking device for electric appliance combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018899U true CN202018899U (en) | 2011-10-26 |
Family
ID=44812567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120140110XU Expired - Fee Related CN202018899U (en) | 2011-05-05 | 2011-05-05 | Vacuum load switch-fuse mechanical interlocking device for electric appliance combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654892A (en) * | 2017-03-21 | 2017-05-10 | 北京北方箱变电气有限公司 | Back door grounding switch interlocking device of medium voltage switchgear |
-
2011
- 2011-05-05 CN CN201120140110XU patent/CN202018899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654892A (en) * | 2017-03-21 | 2017-05-10 | 北京北方箱变电气有限公司 | Back door grounding switch interlocking device of medium voltage switchgear |
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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: 20111026 Termination date: 20120505 |