CN202796553U - Low-pressure anti-misoperation blocking device - Google Patents
Low-pressure anti-misoperation blocking device Download PDFInfo
- Publication number
- CN202796553U CN202796553U CN 201220511986 CN201220511986U CN202796553U CN 202796553 U CN202796553 U CN 202796553U CN 201220511986 CN201220511986 CN 201220511986 CN 201220511986 U CN201220511986 U CN 201220511986U CN 202796553 U CN202796553 U CN 202796553U
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- CN
- China
- Prior art keywords
- connecting rod
- travel switch
- misoperation
- low
- blocking device
- 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 - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a low-pressure anti-misoperation blocking device. The low-pressure anti-misoperation blocking device includes an interlocking fixing piece, a connecting rod, a shielding board and a travel switch. The upper end of the connecting rod is connected with the shielding board while the lower end of the connecting rod is connected with an operation handle on the interlocking fixing piece. The operation handle can be in translational motion relatively to the interlocking fixing piece. A lock rod fixing board, a travel switch press board and a clamp ring are installed on the connecting rod fixedly successively from top down. A press spring is sleeved on the connecting rod partially between the clamp ring and the interlocking fixing piece. The travel switch press board and is connected with the travel switch. The low-pressure anti-misoperation blocking device provided by the utility model is simple in structure and convenient to operate. By using the low-pressure anti-misoperation blocking device, an operation rod can be inserted only when the operation handle of the low-pressure anti-misoperation blocking device is pressed downward and an operation hole is exposed in procedure operation of power cut. And when the operation handle is pressed downward, the travel switch is utilized to connect a tripping control return circuit of a circuit breaker according to the utility model, so that the circuit breaker trips out. Therefore, misoperation is prevented effectively and the safety of equipment and persons is guaranteed.
Description
Technical field
The utility model relates to a kind of low pressure misoperation-proof locking device.
Background technology
According to the electric power operation rules, the power failure operation sequence is: divide first circuit breaker, divide isolating switch again.Send electric operation sequence to be: to close first isolating switch, close again circuit breaker.Existing voltage whole set switch cabinet, isolating switch is equipped with in the end of incoming cables, subordinate's configuration block posture and fixed breaker or mold cased circuit breaker are for the equipment operator who is not familiar with operational procedure, when interruption maintenance or excision fault, possible direct control isolating switch, like this, in the separating brake process, will inevitably produce electric spark, moving contact and fixed contact of isolating switch melting welding or be welded when serious might cause damage of equipment or jeopardize personal safety.
Summary of the invention
In order to solve the problems of the technologies described above, it is a kind of simple in structure, easy to operate that the utility model provides, can be so that the safe and reliable low pressure misoperation-proof locking device of electric power operation.
The technical solution adopted in the utility model is: comprise interlocking fixture, connecting rod, shutter and travel switch; The upper end of described connecting rod is connected with shutter, and the lower end is connected with the operating handle of interlocking on the fixture, and operating handle can with respect to the fixture vertical direction translation of interlocking, be fixed with locking bar fixed head, travel switch pressing plate and snap ring from top to bottom successively on the connecting rod; Partly be set with stage clip between snap ring and the interlocking fixture on the connecting rod; Described travel switch pressing plate is connected with travel switch.
Compared with prior art, the beneficial effects of the utility model are: the utility model is simple in structure, and is easy to operate; The utility model is so that in the blackout procedures operation, must expose handle hole with the operating handle of low pressure misoperation-proof locking device to pressing down, could the update bar; And when operating handle when pressing down, locking device is connected the tripping operation control loop of circuit breaker with travel switch, makes circuit breaker trip, has effectively like this prevented misoperation, has ensured the safety of equipment and the person.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is scheme of installation of the present utility model.
Fig. 3 is the front view of the nylon jacket of operating mechanism.
Fig. 4 is A-A cutaway view among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model comprises interlocking fixture 1, connecting rod 2, shutter 7 and travel switch 8; The upper end of described connecting rod 2 is connected with shutter 7, and the lower end is connected with the operating handle 11 of interlocking on the fixture 1, and operating handle 11 can be with respect to translation about interlocking fixture 1 vertical direction; Be provided with successively from top to bottom locking bar fixed head 6, travel switch pressing plate 5 and snap ring 4 on the connecting rod 2; Partly be set with stage clip 3 between snap ring 4 and the interlocking fixture 1 on the connecting rod 2; Described travel switch pressing plate 5 is connected with travel switch 8.
As shown in Figure 2, when isolating switch was in gate-dividing state, the circular arc of the nylon jacket 10 of operating mechanism cover 102 was pushed down shutter 7 of the present utility model, and the handle hole 9 of isolating switch is exposed outside, action bars can insert, and can carry out closing operation this moment to isolating switch.
During closing operation, the rotary manipulation bar, nylon jacket 10 shown in Fig. 3,4 along with action bars turn to isolating switch combined floodgate terminal point the time, the breach 101 of rotation nylon jacket 10 is so that then the breach 101 and shutter 7 centerings of the present utility model of the second nylon jacket 10 are extracted action bars out, at this moment stage clip 3 of the present utility model recovers, block handle hole 9 with moving to shutter 7 on the connecting rod 2, this moment, isolating switch was in "on" position, and action bars also just can't insert.
During sub-switching operation, according to normal running, divide first circuit breaker, divide again isolating switch, if remove first a minute isolating switch, just must be with operating handle 11 of the present utility model to pressing down, operating handle 11 moves down with the shutter 7 of connecting rod 2 upper ends, exposes handle hole 9, could the update bar.When operating handle 11 when pressing down, travel switch 8 of the present utility model is connected the tripping operation control loop of circuit breakers, makes in advance tripping operation of circuit breaker.Effectively like this prevent misoperation, ensured equipment and personal safety.
Claims (1)
1. a low pressure misoperation-proof locking device is characterized in that: comprise interlocking fixture, connecting rod, shutter and travel switch; The upper end of described connecting rod is connected with shutter, and the lower end is connected with the operating handle of interlocking on the fixture, and operating handle can with respect to the fixture vertical direction translation of interlocking, be fixed with locking bar fixed head, travel switch pressing plate and snap ring from top to bottom successively on the connecting rod; Partly be set with stage clip between snap ring and the interlocking fixture on the connecting rod; Described travel switch pressing plate is connected with travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511986 CN202796553U (en) | 2012-10-08 | 2012-10-08 | Low-pressure anti-misoperation blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511986 CN202796553U (en) | 2012-10-08 | 2012-10-08 | Low-pressure anti-misoperation blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796553U true CN202796553U (en) | 2013-03-13 |
Family
ID=47823763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511986 Expired - Lifetime CN202796553U (en) | 2012-10-08 | 2012-10-08 | Low-pressure anti-misoperation blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630474A (en) * | 2018-07-02 | 2018-10-09 | 河南华盛隆源电气有限公司 | The interlocking mechanism of breaker and disconnecting switch |
-
2012
- 2012-10-08 CN CN 201220511986 patent/CN202796553U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630474A (en) * | 2018-07-02 | 2018-10-09 | 河南华盛隆源电气有限公司 | The interlocking mechanism of breaker and disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |