CN210575614U - Locking structure of closing switch of circuit breaker - Google Patents
Locking structure of closing switch of circuit breaker Download PDFInfo
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- CN210575614U CN210575614U CN201921587023.1U CN201921587023U CN210575614U CN 210575614 U CN210575614 U CN 210575614U CN 201921587023 U CN201921587023 U CN 201921587023U CN 210575614 U CN210575614 U CN 210575614U
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- closing switch
- main shaft
- locking plate
- circuit breaker
- locking
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Abstract
The utility model discloses a locking structure of a closing switch of a circuit breaker, which comprises a closing switch, a limiting shaft and a main shaft, wherein the limiting shaft is rotatable, the main shaft is provided with an eccentric lug, the locking piece, a transmission piece and a locking plate are also included, the locking piece is sleeved on the limiting shaft and synchronously rotates along with the limiting shaft, the locking piece is provided with an upper blocking arm corresponding to the transmission piece, the transmission piece is movably arranged between the upper blocking arm and the closing switch, the locking plate can be vertically and reciprocally arranged between the limiting shaft and the main shaft, the locking piece is provided with a lower blocking arm corresponding to the locking plate, the eccentric lug drives the locking plate to move upwards to be abutted against the lower blocking arm when the main shaft rotates to a closing station, the locking piece is limited by the locking plate at the moment, the limiting shaft and the blocking piece can not rotate together, therefore, the closing switch can not be pressed down, thereby the switch is locked during the full-brake, the misoperation of the closing switch is effectively avoided.
Description
Technical Field
The utility model relates to a structure of locking of circuit breaker combined floodgate switch.
Background
The circuit breaker has two working states of closing and opening, when closing, the energy is released by the energy storage spring to drive the energy storage shaft to rotate, the elastic force of the tension spring can be overcome and the main shaft can be pushed to rotate in the rotating process of the energy storage shaft, and the travel switch is shifted to the closing position by the pull rod when the main shaft rotates; when the brake is switched off, the main shaft is driven by the elastic force of the tension spring to rotate reversely, and the travel switch is reset to the brake switching-off position by the pull rod.
At the separating brake state, pin energy storage spring's energy through spacing subassembly, the utility model patent of grant bulletin number CN207800484U just discloses the structure of spacing subassembly, and spacing subassembly includes rotatable spacing axle and horizontal pole, spacing epaxial breach that is equipped with, wears to set the dog on the horizontal pole, and the epaxial cam of wearing to set of energy storage, the gyro wheel is connected at the side to the cam, and gyro wheel, dog and breach three align. When the energy is stored, namely in a brake-off state, the roller pushes the stop block to press against the limit shaft, and the energy storage shaft cannot rotate to release energy; when needing release energy, when also needing to close a floodgate, press closing switch, closing switch stirs spacing axle and rotates, makes the breach of spacing axle step over the dog, like this, the gyro wheel alright push away the dog, the energy storage axle realizes rotating.
However, when the circuit breaker itself is already closed, there is a possibility that a worker may press the closing switch again without knowing or accidentally, which may cause the circuit breaker to work abnormally, and the number of times of starting the closing switch by the counter may be correspondingly increased, which may cause the number of times of closing recorded by the counter to be inconsistent with the number of times of actual closing of the circuit breaker.
Therefore, a structure is needed to be designed to ensure that the circuit breaker is prevented from repeatedly starting a closing switch under a closing state.
SUMMERY OF THE UTILITY MODEL
The utility model provides a structure of locking of circuit breaker combined floodgate switch, combined floodgate switch can be locked under the combined floodgate state. The utility model provides a technical scheme that its technical problem adopted is:
the locking structure of the closing switch of the circuit breaker comprises a closing switch, a limiting shaft and a main shaft, wherein the limiting shaft can rotate, the limit shaft is provided with a gap, the main shaft is positioned below the limit shaft and can rotate back and forth between a closing station and an opening station, the main shaft is provided with an eccentric lug, and also comprises a blocking piece, a transmission piece and a locking plate, wherein the blocking piece is sleeved on the limiting shaft and synchronously rotates along with the limiting shaft, the blocking piece is provided with an upper blocking arm corresponding to the transmission piece, the transmission piece is movably arranged between the upper blocking arm and the closing switch, the lock plate can be vertically arranged between the limit shaft and the main shaft in a reciprocating way, the blocking piece is provided with a lower blocking arm corresponding to the lock plate, the locking plate is separated from the lower blocking arm when the main shaft rotates to a switching-off station, and the eccentric lug drives the locking plate to move upwards to be abutted against the lower blocking arm when the main shaft rotates to a switching-on station.
In a preferred embodiment: the eccentric cam lock also comprises a swinging block which is connected between the eccentric lug and the locking plate in a transmission way.
In a preferred embodiment: the lower part of the swinging block is provided with a leaning part corresponding to the eccentric lug.
In a preferred embodiment: the main shaft is connected with the swing block, a leading-out pin of the torsion spring is connected with the locking plate, the eccentric convex block jacks the swing block upwards when the main shaft rotates to a closing station, the swing block drives the torsion spring to swing upwards, and the leading-out pin pushes the locking plate to move upwards and then abut against the lower blocking arm.
In a preferred embodiment: the lock plate is provided with a hook groove, and the leading-out pin extends into the hook groove.
In a preferred embodiment: the spring is connected with the locking plate, and when the main shaft rotates to the opening station, the spring pulls the locking plate to move downwards to be separated from the lower retaining arm.
In a preferred embodiment: still include the mounting panel of vertical setting, this jam plate, driving medium, pendulum piece activity set up on this mounting panel, and this spring tensioning is between this jam plate and this mounting panel.
In a preferred embodiment: the upper part of the closing switch is rotatably hung on the cross rod, and the lower part of the closing switch is rotatably pivoted with one end of the transmission part.
In a preferred embodiment: the safety switch is arranged above the transmission part and provided with an insertion rod capable of moving vertically, the transmission part is provided with a convex block, the insertion rod is clamped with the convex block when moving downwards to lock the transmission part, and the transmission part is released after the insertion rod moves upwards.
Compared with the background technology, the technical scheme has the following advantages:
1. because the eccentric lug, the locking plate and the lower blocking arm are sequentially connected in a transmission manner, during brake opening, the locking plate moves downwards and is not connected with the lower blocking arm, so that the blocking piece and the limiting shaft can rotate, and when a switch-on switch is pressed, the blocking piece and the limiting shaft can be controlled to rotate through the transmission piece, and switch-on is realized. And under the closing state, the locking plate is driven by the eccentric lug to move upwards, the locking plate is abutted against the lower blocking arm after moving upwards, the blocking piece is limited by the locking plate at the moment, and the limiting shaft and the blocking piece cannot rotate together, so that the closing switch cannot be pressed down, the closing switch is locked during full closing, and misoperation of the closing switch is effectively avoided.
2. The swing block is connected between the eccentric lug and the locking plate in a transmission manner, and is suitable for transmission in a narrow space.
3. The torsional spring is arranged on the swinging block, when the swinging block swings upwards, the torsional spring torsion pushes the locking plate to move upwards, the locking plate moves more stably, and the locking plate can be prevented from being locked when moving.
4. The spring pulls the locking plate to move downwards to be separated from the lower retaining arm, so that the locking plate can be quickly separated from the lower retaining arm when the brake is switched off, and the operation is more flexible.
5. The safety switch is further included, and when the inserted rod of the safety switch moves downwards, the inserted rod is clamped with the protruding block so as to lock the transmission piece, and the secondary locking effect can be achieved on the closing switch.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 shows a schematic perspective view of the locking structure of the closing switch of the circuit breaker of the present invention.
Fig. 2 shows another schematic perspective view of the locking structure of the closing switch of the circuit breaker of the present invention.
Fig. 3 is an enlarged schematic view of the coil portion of fig. 2.
Fig. 4 shows the side view schematic diagram of the locking structure of the closing switch of the circuit breaker of the present invention.
Detailed Description
Referring to fig. 1 to 4, the locking structure of the closing switch of the circuit breaker includes a closing switch 10, a limiting shaft 20 and a main shaft 30, wherein the limiting shaft 20 is rotatable, a notch is formed in the limiting shaft 20, the main shaft 30 is located below the limiting shaft 30, the main shaft 30 can rotate back and forth between a closing station and an opening station, when the locking structure works, the limiting shaft 20 is driven to rotate after the closing switch 10 is pressed down, the notch of the limiting shaft is moved away, the main shaft 30 can rotate under the driving of an energy storage spring, the closing operation is realized, and the principle of closing the circuit breaker is the conventional structure and will not be described in detail.
The spindle 30 is provided with an eccentric projection 32. The locking structure of the closing switch of the circuit breaker further comprises a blocking member 40, a transmission member 50 and a locking plate 60, wherein the blocking member 40 is sleeved on the limiting shaft 20 and synchronously rotates with the limiting shaft, and the blocking member is provided with an upper blocking arm 42 corresponding to the transmission member 50. The transmission member 50 is movably disposed between the upper arm 42 and the closing switch 10, and when the closing switch 10 is pressed, the transmission member 50 can be pushed to move, so that the transmission member 50 pushes the upper arm 42 again, and finally the limiting shaft 20 rotates to realize closing. The locking plate 60 is vertically and reciprocally disposed between the limiting shaft 20 and the main shaft 30, and the blocking member 40 is provided with a lower blocking arm 44 corresponding to the locking plate 60. The lock plate 60 is located at a vertically low point when the main shaft 30 is rotated to the opening station, and is separated from the lower catch arm 44. When the main shaft 30 rotates to a closing station, the eccentric protrusion 32 drives the locking plate 60 to move upwards, and when the locking plate vertically moves to a high point, the locking plate abuts against the lower blocking arm 44, and at this time, the blocking member 40 is locked and cannot rotate, so that the closing switch 10 is locked together.
Preferably, the lock device further comprises a swing block 70, and the swing block 70 is in transmission connection between the eccentric lug 32 and the lock plate 60. The lower portion of the swing block 70 is provided with an abutting portion 72 corresponding to the eccentric protrusion 32 so that the eccentric protrusion 32 can more easily jack up the swing block 70.
Preferably, the swing block further comprises a torsion spring 80, the torsion spring 80 is connected to the swing block 70, an outgoing leg of the torsion spring 80 is connected to the locking plate 60, the eccentric protrusion 32 jacks up the swing block 70 when the main shaft 30 rotates to the closing station, the swing block 70 drives the torsion spring 80 to swing upward, and the outgoing leg pushes the locking plate 60 to move upward and then abuts against the lower blocking arm 44. The locking plate 60 is provided with a hook groove 62, and the pin extends into the hook groove 62.
Preferably, a spring 90 is further included, the spring 90 is connected to the lock plate 60, and when the main shaft 30 rotates to the opening position, the spring 90 pulls the lock plate 60 to move downwards to be separated from the lower blocking arm 44.
The present embodiment further includes a vertically disposed mounting plate 100, the locking plate 60, the driving member 50, and the swinging block 70 are movably disposed on the mounting plate 100, and the spring 90 is tensioned between the locking plate 60 and the mounting plate 100. A cross bar 101 is disposed on the mounting plate 100, an upper portion of the closing switch 10 is rotatably hung on the cross bar 101, and a lower portion of the closing switch 10 is rotatably pivoted to one end of the transmission member 50.
The safety switch is characterized by further comprising a safety switch 110, wherein the safety switch 110 is arranged above the transmission member 50, the safety switch is provided with an insertion rod capable of moving vertically, the transmission member is provided with a convex block 52, the insertion rod is clamped with the convex block 52 when moving downwards so as to lock the transmission member 50, the transmission member 50 is released firstly only after the insertion rod moves upwards, and meanwhile, the lock plate 60 is separated from the lower blocking arm 44, so that the closing switch 10 can be pressed.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (9)
1. Locking structure of circuit breaker combined floodgate switch, including combined floodgate switch, spacing axle and main shaft, spacing axle is rotatable, spacing epaxial breach that is equipped with, the main shaft is located spacing axle below, the main shaft can make a round trip to rotate its characterized in that between combined floodgate station and separating brake station: the main shaft is provided with an eccentric lug, the main shaft further comprises a blocking part, a transmission part and a locking plate, the blocking part is sleeved on the limiting shaft and synchronously rotates along with the limiting shaft, the blocking part is provided with an upper blocking arm corresponding to the transmission part, the transmission part is movably arranged between the upper blocking arm and the closing switch, the locking plate can be vertically arranged between the limiting shaft and the main shaft in a reciprocating manner, the blocking part is provided with a lower blocking arm corresponding to the locking plate, the locking plate is separated from the lower blocking arm when the main shaft rotates to a switching-off station, and the eccentric lug drives the locking plate to move upwards to be abutted against the lower blocking arm when the main shaft rotates to the closing station.
2. The locking structure of a closing switch of a circuit breaker according to claim 1, characterized in that: the eccentric cam lock also comprises a swinging block which is connected between the eccentric lug and the locking plate in a transmission way.
3. The locking structure of a closing switch of a circuit breaker according to claim 2, characterized in that: the lower part of the swinging block is provided with a leaning part corresponding to the eccentric lug.
4. The locking structure of a closing switch of a circuit breaker according to claim 2 or 3, characterized in that: the main shaft is connected with the swing block, a leading-out pin of the torsion spring is connected with the locking plate, the eccentric convex block jacks the swing block upwards when the main shaft rotates to a closing station, the swing block drives the torsion spring to swing upwards, and the leading-out pin pushes the locking plate to move upwards and then abut against the lower blocking arm.
5. The locking structure of a closing switch of a circuit breaker according to claim 4, characterized in that: the lock plate is provided with a hook groove, and the leading-out pin extends into the hook groove.
6. The locking structure of a closing switch of a circuit breaker according to claim 4, characterized in that: the spring is connected with the locking plate, and when the main shaft rotates to the opening station, the spring pulls the locking plate to move downwards to be separated from the lower retaining arm.
7. The locking structure of a closing switch of a circuit breaker according to claim 6, characterized in that: still include the mounting panel of vertical setting, this jam plate, driving medium, pendulum piece activity set up on this mounting panel, and this spring tensioning is between this jam plate and this mounting panel.
8. The locking structure of a closing switch of a circuit breaker according to claim 1, characterized in that: the upper part of the closing switch is rotatably hung on the cross rod, and the lower part of the closing switch is rotatably pivoted with one end of the transmission part.
9. The locking structure of a closing switch of a circuit breaker according to claim 8, characterized in that: the safety switch is arranged above the transmission part and provided with an insertion rod capable of moving vertically, the transmission part is provided with a convex block, the insertion rod is clamped with the convex block when moving downwards to lock the transmission part, and the transmission part is released after the insertion rod moves upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587023.1U CN210575614U (en) | 2019-09-23 | 2019-09-23 | Locking structure of closing switch of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587023.1U CN210575614U (en) | 2019-09-23 | 2019-09-23 | Locking structure of closing switch of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210575614U true CN210575614U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921587023.1U Active CN210575614U (en) | 2019-09-23 | 2019-09-23 | Locking structure of closing switch of circuit breaker |
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| Country | Link |
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| CN (1) | CN210575614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967903A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Locking structure of isolating switch |
-
2019
- 2019-09-23 CN CN201921587023.1U patent/CN210575614U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967903A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Locking structure of isolating switch |
| CN112967903B (en) * | 2021-04-09 | 2022-04-08 | 安徽新高电气有限公司 | Locking structure of isolating switch |
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