CN212136337U - Interlocking device for switch cabinet circuit breaker and grounding switch - Google Patents
Interlocking device for switch cabinet circuit breaker and grounding switch Download PDFInfo
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- CN212136337U CN212136337U CN202020325432.0U CN202020325432U CN212136337U CN 212136337 U CN212136337 U CN 212136337U CN 202020325432 U CN202020325432 U CN 202020325432U CN 212136337 U CN212136337 U CN 212136337U
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- rod
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- interlocking
- circuit breaker
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Abstract
The utility model discloses an interlock for cubical switchboard circuit breaker and earthing switch, including earthing switch operating device and circuit breaker dolly, be provided with the chain board on the circuit breaker dolly, be provided with the action bars on the earthing switch operating device, the action bars is provided with the operating axis baffle for the one end of earthing switch operating device, is close to the operating axis baffle is equipped with the backup plate that cup joints on the operating axis baffle, the activity of operating axis baffle sets up at the operating rod tip; be provided with the lever on the operating axis baffle, lever one end is connected with the interlocking lever of vertical setting, the interlocking lever links to each other with operating rod and circuit breaker interlocking board, the utility model aims to provide an interlock for cubical switchboard circuit breaker and earthing switch utilizes simple interlocking structure and a small amount of spare part to realize interlocking function to solve the too complicated problem of structure of current interlocking device, simple structure is practical.
Description
Technical Field
The utility model relates to a power switching equipment's technical field especially relates to an interlock for cubical switchboard circuit breaker and earthing switch.
Background
At present, with the rapid development of the industry in China, the demand of the electricity utilization of the society is also rapidly increased, and the requirement of residents on the quality of the electricity utilization is higher and higher, so that the requirement on the reliability of a switch is higher and higher.
In the existing switch equipment, the interlocking mechanism between the vacuum circuit breaker and the grounding switch is designed into a five-door and eight-door structure, the mechanism is different in complexity, and the reliability of the interlocking mechanism is unstable; the reliability of the five-prevention interlocking in the switch equipment is directly related to the safe operation of the switch equipment and the life safety of operators.
The handcart type switch cabinet and the breaker cabinet which are operated in the transformer substation in China at present are large in assembly proportion and are the mainstream type of the current power grid, so that five-prevention interlocking of the grounding switch of the switch cabinet is particularly important, and the simple and efficient interlocking structure can directly reduce the fault rate of the switch cabinet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an interlock for cubical switchboard circuit breaker and earthing switch utilizes simple interlocking structure and a small amount of spare part to realize interlocking function to solve the too complicated problem of structure of current interlock, simple structure is practical.
In order to achieve the above purpose, the technical scheme of the utility model has:
an interlocking device for a switch cabinet circuit breaker and a grounding switch comprises a grounding switch operating mechanism and a circuit breaker trolley, wherein a linkage plate is arranged on the circuit breaker trolley, an operating rod is arranged on the grounding switch operating mechanism, one end of the operating rod, which is opposite to the grounding switch operating mechanism, is provided with an operating shaft baffle, a leaning plate sleeved on the operating shaft baffle is arranged close to the operating shaft baffle, and the operating shaft baffle is movably arranged at the end part of the operating rod;
a lever is arranged on the operating shaft baffle, one end of the lever is connected with an interlocking rod which is vertically arranged, and the interlocking rod is connected with the operating rod and the circuit breaker interlocking plate;
when the grounding switch is in a closing state, the grounding switch operating rod rotates to drive the interlocking rod to the highest position, the connecting end of the lever and the operating shaft baffle abuts against the abutting plate, the circuit breaker trolley slides, and the interlocking rod and the interlocking plate are used for blocking the pushing-in of the circuit breaker trolley;
when the grounding switch is in a switching-off state, the grounding switch operating rod cannot rotate, the interlocking rod cannot move upwards at the moment, the connecting end of the lever and the operating shaft baffle is separated from the abutting plate, and the lever is perpendicular to the operating shaft baffle at the moment.
Furthermore, the lever comprises a first rod, a second rod and a rotating fulcrum, the first rod is movably fixed with the interlocking rod, the second rod is movably fixed with the operating shaft baffle, a slide rail is further arranged close to the operating shaft baffle, the rotating fulcrum is arranged on the slide rail, and the length of the second rod is far smaller than that of the first rod.
Furthermore, an indication column is arranged on the operating rod, a limiting plate is further arranged above the operating rod, and the spacing distance between the operating rod and the limiting plate is smaller than the length of the indication column.
Further, the abutting plate is inclined to the operating shaft baffle, and the upper end of the abutting plate is tightly attached to the operating shaft baffle.
The utility model discloses an interlock for cubical switchboard circuit breaker and earthing switch, its simple structure adopts spare part few, utilizes the mutual motion between interlocking lever, operating axis baffle, action bars and the lever to realize circuit breaker and earthing switch two interlocking functions, simple and practical; the maintenance cost of the product is low, thereby reducing the use cost.
Drawings
FIG. 1 is a schematic view of the interlock in an open state;
fig. 2 is a schematic diagram of the closing state of the interlock device.
Detailed Description
The invention discloses an interlocking device for a switch cabinet breaker and an earthing switch, which is described with reference to the accompanying drawings.
As shown in fig. 1 to 2, as a preferred embodiment of the present invention:
an interlocking device for a switch cabinet circuit breaker and an earthing switch comprises an earthing switch operating mechanism 1 and a circuit breaker trolley 2, wherein a linkage plate 21 is arranged on the circuit breaker trolley 2, an operating rod 11 is arranged on the earthing switch operating mechanism 1, an operating shaft baffle plate 12 is arranged at one end, opposite to the earthing switch operating mechanism 1, of the operating rod 11, an abutting plate 13 sleeved on the operating shaft baffle plate 12 is arranged close to the operating shaft baffle plate 12, and the operating shaft baffle plate 12 is movably arranged at the end part of the operating rod 11;
a lever 14 is arranged on the operating shaft baffle 12, one end of the lever 14 is connected with a vertically arranged interlocking rod 15, and the interlocking rod 15 is connected with the operating rod 11 and the circuit breaker interlocking plate 21;
when the grounding switch is in a closing state, the grounding switch operating rod 11 rotates to drive the interlocking rod 15 to the highest position, the connecting end of the lever 14 and the baffle of the operating rod 11 abuts against the abutting plate 13, the circuit breaker trolley 2 slides, and the interlocking rod 15 and the interlocking plate 21 are used for blocking the pushing-in of the circuit breaker trolley 2;
when the earthing switch is in a switching-off state, the earthing switch operating rod 11 cannot rotate, the interlocking rod 15 cannot move upwards, the connecting end of the lever 14 and the operating rod 11 baffle is separated from the abutting plate 13, and the lever 14 is perpendicular to the operating rod 11 baffle.
The lever 14 includes a first rod 141, a second rod 142 and a rotation fulcrum 143, the first rod 141 is movably fixed to the interlock rod 15, the second rod 142 is movably fixed to the operating rod 11, a slide rail 144 is further disposed near the operating rod 11, and the rotation fulcrum 143 is disposed on the slide rail 144, wherein the length of the second rod 142 is far shorter than the length of the first rod 141.
Preferably, when the ground switch is in a closed state, an included angle between the first rod 141 and the second rod 142 is smaller than 180 °, the second rod 142 is perpendicular to the operating shaft baffle 12, and the first rod 141 is inclined to the second rod 142.
Further preferably, when the ground switch is in the closing state or the opening state, the second rod 142 is always perpendicular to the operation shaft damper 12.
The operating rod 11 is provided with an indicating column 16, a limiting plate 17 is further arranged above the operating rod 11, the spacing distance between the operating rod 11 and the limiting plate is smaller than the length of the indicating column 16, when the operating rod 11 rotates, the indicating column 16 rotates synchronously until the indicating column 16 rotates to the position of the limiting plate 17, and the indicating column 16 and the limiting plate 17 are abutted to limit the rotating position of the operating rod 11.
The abutting plate 13 is inclined to the operating shaft baffle 12, and the upper end of the abutting plate 13 is tightly attached to the operating shaft baffle 12, so that the position of the grounding switch in a closing state is conveniently limited, and the situation that the rotating fulcrum 143 is dislocated between the first rod 141 and the second rod 142 due to the fact that the abutting of the second rod 142 against the fulcrum is unstable is avoided, and the locking of the grounding switch or the breaker is affected. .
The utility model discloses an interlock for cubical switchboard circuit breaker and earthing switch, its simple structure adopts spare part few, utilizes the mutual motion between interlocking lever 15, operating axis baffle 12, operating lever 11 and lever 14 to realize circuit breaker and earthing switch two interlocking functions, simple and practical; the maintenance cost of the product is low, thereby reducing the use cost.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (4)
1. An interlocking device for a switch cabinet breaker and an earthing switch comprises an earthing switch operating mechanism and a breaker trolley, and is characterized in that,
the circuit breaker trolley is provided with a linkage plate, the grounding switch operating mechanism is provided with an operating rod, one end of the operating rod, which is opposite to the grounding switch operating mechanism, is provided with an operating shaft baffle, a leaning plate sleeved on the operating shaft baffle is arranged close to the operating shaft baffle, and the operating shaft baffle is movably arranged at the end part of the operating rod;
a lever is arranged on the operating shaft baffle, one end of the lever is connected with an interlocking rod which is vertically arranged, and the interlocking rod is connected with the operating rod and the circuit breaker interlocking plate;
when the grounding switch is in a closing state, the grounding switch operating rod rotates to drive the interlocking rod to the highest position, the connecting end of the lever and the operating shaft baffle abuts against the abutting plate, the circuit breaker trolley slides, and the interlocking rod and the interlocking plate are used for blocking the pushing-in of the circuit breaker trolley;
when the grounding switch is in a switching-off state, the grounding switch operating rod cannot rotate, the interlocking rod cannot move upwards at the moment, the connecting end of the lever and the operating shaft baffle is separated from the abutting plate, and the lever is perpendicular to the operating shaft baffle at the moment.
2. The interlock of claim 1 wherein said lever comprises a first rod, a second rod and a pivot point, said first rod movably secured to said interlock rod, said second rod movably secured to said operating shaft stop, a slide track positioned adjacent said operating shaft stop, said pivot point positioned on said slide track, wherein said second rod has a length substantially less than a length of said first rod.
3. The interlocking device of claim 1, wherein an indication post is disposed on the operating rod, a limiting plate is disposed above the operating rod, and the operating rod is spaced from the limiting plate by a distance less than the length of the indication post.
4. The interlock of claim 1 wherein said abutment plate is disposed obliquely to said operating shaft stop and said abutment plate upper end is disposed in close proximity to said operating shaft stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325432.0U CN212136337U (en) | 2020-03-16 | 2020-03-16 | Interlocking device for switch cabinet circuit breaker and grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325432.0U CN212136337U (en) | 2020-03-16 | 2020-03-16 | Interlocking device for switch cabinet circuit breaker and grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212136337U true CN212136337U (en) | 2020-12-11 |
Family
ID=73674287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020325432.0U Active CN212136337U (en) | 2020-03-16 | 2020-03-16 | Interlocking device for switch cabinet circuit breaker and grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212136337U (en) |
-
2020
- 2020-03-16 CN CN202020325432.0U patent/CN212136337U/en active Active
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