CN216928336U - Three-station interlocking for isolating switch-on and switch-off - Google Patents
Three-station interlocking for isolating switch-on and switch-off Download PDFInfo
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- CN216928336U CN216928336U CN202122880656.5U CN202122880656U CN216928336U CN 216928336 U CN216928336 U CN 216928336U CN 202122880656 U CN202122880656 U CN 202122880656U CN 216928336 U CN216928336 U CN 216928336U
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Abstract
The utility model discloses an isolation switching-on/off three-station interlock which comprises a circuit breaker main body, wherein an isolation switch shaft is arranged on the front side of the circuit breaker main body, a main linkage piece is arranged on the isolation switch shaft, a compression spring is connected to the side face of the main linkage piece, a linkage rod is connected to the bottom end of the main linkage piece, an auxiliary linkage piece is connected to the bottom end of the linkage rod, a locking shaft is connected to the auxiliary linkage piece, a locking block is connected to the locking shaft, and a limiting block is arranged below the locking block. According to the utility model, by arranging the locking block and the limiting block, when the locking shaft drives the locking block to rotate rightwards, the lug at the bottom of the locking block drives the limiting block to rotate through the groove of the limiting block, so that the lug at the top of the limiting block is slowly clamped in the groove of the locking block, the grounding switch shaft is in a switching-off state at the moment, and the grounding switch shaft cannot be switched on due to the fact that the limiting block is clamped, and further, the interlocking structure of the grounding switch shaft and the isolating switch shaft is realized, and the operation is very convenient.
Description
Technical Field
The utility model relates to the technical field of three-position switch design, in particular to an isolation opening and closing three-position interlocking.
Background
The three-position switch integrates the functions of the isolating switch and the grounding switch and is completed by one knife, so that mechanical locking can be realized, the grounding knife can be prevented from being closed by a main loop, the one knife can only be in one position unlike the traditional isolating switch, the main knife is the main knife, the grounding knife is the grounding knife, and misoperation can occur between the two knives. The three-position isolating switch uses a knife, and the working position of the knife is unique at a certain moment, not at the switching-on position of the main brake, but at the isolating position or the grounding position. In traditional GIS, isolator and earthing switch are two functional unit, use electric interlocking to control, and the latest design is exactly to use three-station isolator, has avoided the possibility of maloperation, and also can often use on the circuit breaker at present.
Although the existing three-position disconnecting and connecting switch uses the isolating switch, the structure is complex, the condition of misoperation still occurs sometimes, the working efficiency is reduced, certain dangerous factors also exist, and therefore an isolating and connecting three-position interlocking is required to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the existing three-position disconnecting and connecting switch uses an isolating switch, but the structure is complicated, so that misoperation still occurs sometimes, the working efficiency is reduced, and certain dangerous factors exist.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an keep apart three station interlocks of divide-shut brake, includes the circuit breaker main part, the front of circuit breaker main part is provided with the isolator axle, the epaxial main trace that is equipped with of isolator, the side of main trace is connected with and reduces the spring, and the bottom of main trace is connected with the trace, the bottom of trace is connected with vice trace, be connected with the counterpoint axle on the vice trace, the epaxial position locking piece that is connected with of counterpoint, the below of position locking piece is equipped with the stopper, be connected with the earthing switch axle on the stopper, the front of circuit breaker main part is equipped with circuit breaker divide-shut brake axle, the epaxial solid piece that is equipped with of circuit breaker divide-shut brake, the below of solid piece is equipped with the shut brake block.
Preferably, the isolating switch shaft is connected with the circuit breaker main body in a rotating mode and is fixedly connected with the main linkage piece, and the main linkage piece is fixedly connected with the compression spring.
Preferably, the main linkage part is connected with the linkage rod through a rotating shaft, the linkage rod is connected with the auxiliary linkage part through a rotating shaft, and the auxiliary linkage part is fixedly connected with the locking shaft.
Preferably, the locking shaft is rotatably connected with the breaker main body and fixedly connected with the locking block, a protruding block at the bottom of the locking block is clamped in a groove of the limiting block when the isolating switch shaft is switched off, and a protruding block at the top of the limiting block is clamped in a groove of the locking block when the isolating switch shaft is switched on.
Preferably, the circuit breaker opening and closing shaft is rotatably connected with the circuit breaker main body and fixedly connected with the solid block, and the groove at the bottom end of the solid block is clamped outside the opening and closing locking block when the circuit breaker main body is opened.
Preferably, the position surfaces of the opening and closing locking block and the solid block are higher than the position locking block, and the bottom end of the opening and closing locking block is clamped in the groove at the top end of the position locking block when the opening and closing locking block is pressed to the position higher than the position locking block.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, by arranging the locking block and the limiting block, when the locking shaft drives the locking block to rotate rightwards, the lug at the bottom of the locking block drives the limiting block to rotate through the groove of the limiting block, so that the lug at the top of the limiting block is slowly clamped in the groove of the locking block, the grounding switch shaft is in a switching-off state at the moment, and the grounding switch shaft cannot be switched on due to the clamping of the limiting block, so that a linkage structure of the grounding switch shaft and the isolating switch shaft is realized, and the operation is very convenient;
2. according to the utility model, the solid block and the closing locking block are arranged, so that the opening and closing locking block is pressed to form a locking state after the grounding switch shaft and the isolating switch shaft are operated, the solid block is not limited at the moment, the opening and closing shaft of the circuit breaker can be subjected to closing starting operation, and the bottom end of the opening and closing locking block is clamped in the groove at the top end of the locking block, so that the grounding switch shaft and the isolating switch shaft cannot be operated, the opening and closing of the circuit breaker opening and closing shaft are ensured to be carried out firstly when equipment is closed, the opening and closing locking block is unlocked, and the safety is ensured.
Drawings
FIG. 1 is a schematic diagram of an external structure of an isolation opening-closing three-station interlock with an isolation switch shaft in an opening state, according to the utility model;
fig. 2 is a schematic diagram of an external structure of an isolation opening/closing three-station interlock with an isolating switch shaft in a closing state in a front view.
In the figure: 1. a circuit breaker main body; 2. an isolation switch shaft; 3. a main linkage; 4. tightening the spring; 5. a linkage rod; 6. a secondary linkage; 7. a position locking shaft; 8. a position locking block; 9. a limiting block; 10. a grounding switch shaft; 11. a breaker opening and closing shaft; 12. a solid block; 13. and a switching-on/off locking block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 2, an isolation opening and closing three-station interlock comprises a circuit breaker main body 1, wherein an isolation switch shaft 2 is arranged on the front side of the circuit breaker main body 1, a main interlocking part 3 is arranged on the isolation switch shaft 2, a compression spring 4 is connected to the side surface of the main interlocking part 3, a linkage rod 5 is connected to the bottom end of the main interlocking part 3, an auxiliary interlocking part 6 is connected to the bottom end of the linkage rod 5, a locking shaft 7 is connected to the auxiliary interlocking part 6, a locking block 8 is connected to the locking shaft 7, a limiting block 9 is arranged below the locking block 8, a grounding switch shaft 10 is connected to the limiting block 9, a circuit breaker opening and closing shaft 11 is arranged on the front side of the circuit breaker main body 1, a solid block 12 is arranged on the circuit breaker opening and closing shaft 11, and an opening and closing block 13 is arranged below the solid block 12;
it is worth noting that the isolating switch shaft 2 is rotatably connected with the breaker main body 1 and fixedly connected with the main linkage part 3, and the main linkage part 3 is fixedly connected with the compression spring 4, so that when the circuit breaker is used, the main linkage part 3 on the breaker main body 1 is rotated downwards to enable the isolating switch shaft 2 to be switched on, and at the moment, the compression spring 4 is restored to an original state from a stretching state, so that the isolating switch shaft 2 cannot be easily rotated, and the circuit breaker has good protection performance;
it is worth noting that the main linkage piece 3 is connected with the linkage rod 5 through a rotating shaft, the linkage rod 5 is connected with the auxiliary linkage piece 6 through a rotating shaft, and the auxiliary linkage piece 6 is fixedly connected with the locking shaft 7, so that the linkage rod 5 can drive the auxiliary linkage piece 6 to rotate downwards when the main linkage piece 3 rotates downwards, and the auxiliary linkage piece 6 can drive the locking shaft 7 to rotate again when the auxiliary linkage piece 6 rotates, therefore, the linkage is very simple, operation errors can not exist basically, and the linkage convenience is improved;
it is worth noting that the locking shaft 7 is rotatably connected with the breaker main body 1 and fixedly connected with the locking block 8, a projection at the bottom of the locking block 8 is clamped in a groove of the limiting block 9 when the isolating switch shaft 2 is switched off, and a projection at the top of the limiting block 9 is clamped in a groove of the locking block 8 when the isolating switch shaft 2 is switched on, so that when the locking shaft 7 drives the locking block 8 to rotate rightwards, the projection at the bottom of the locking block 8 drives the limiting block 9 to rotate through the groove of the limiting block 9, the projection at the top of the limiting block 9 is slowly clamped in the groove of the locking block 8, the grounding switch shaft 10 is in a switched-off state at the moment, and the limiting block 9 is clamped, so that the grounding switch shaft 10 cannot be switched on, further, a linkage structure of the grounding switch shaft 10 and the isolating switch shaft 2 is realized, and the operation is very convenient;
it is worth noting that the breaker opening and closing shaft 11 is rotatably connected with the breaker main body 1 and fixedly connected with the solid block 12, and the groove at the bottom end of the solid block 12 is clamped outside the opening and closing locking block 13 when the breaker main body 1 is opened, so that before the grounding switch shaft 10 and the isolating switch shaft 2 are operated, the opening and closing locking block 13 is clamped inside the solid block 12, and the solid block 12 is fixedly connected with the breaker opening and closing shaft 11, so that the breaker opening and closing shaft 11 cannot rotate to perform closing operation, and potential safety hazards caused by directly starting the breaker main body 1 are prevented;
it is worth noting that the position surfaces of the opening and closing locking block 13 and the solid block 12 are higher than the locking block 8, the bottom end of the opening and closing locking block 13 is clamped in the groove at the top end of the locking block 8 when the opening and closing locking block 13 is pressed to the position surface same as the position surface higher than the locking block 8, therefore, after the grounding switch shaft 10 and the isolating switch shaft 2 are operated, the opening and closing locking block 13 is pressed to form a locking state, at the moment, the solid block 12 loses the limit, the opening and closing shaft 11 of the circuit breaker can be operated for opening and closing, and the bottom end of the opening and closing locking block 13 is clamped in the groove at the top end of the locking block 8, so that the grounding switch shaft 10 and the isolating switch shaft 2 cannot be operated, and therefore, the opening and closing of the circuit breaker opening and closing shaft 11 must be performed before the equipment is closed, the opening and closing locking block 13 can be unlocked, and the safety is ensured.
The principle of use of the utility model will now be described as follows:
when the utility model is used, firstly, when the circuit breaker is used, the main interlocking part 3 on the circuit breaker main body 1 is rotated downwards to close the isolating switch shaft 2, at the moment, the contracting spring 4 is restored to the original state from the stretching state, so that the isolating switch shaft 2 cannot be easily rotated, and the circuit breaker has good protection performance, when the main interlocking part 3 rotates downwards, the interlocking rod 5 can drive the auxiliary interlocking part 6 to rotate downwards, the auxiliary interlocking part 6 rotates to drive the locking shaft 7 to rotate, when the locking shaft 7 drives the locking block 8 to rotate rightwards, the lug at the bottom of the locking block 8 drives the limiting block 9 to rotate through the groove of the limiting block 9, so that the lug at the top of the limiting block 9 is slowly clamped in the groove of the locking block 8, the grounding switch shaft 10 is in a switching-off state at the moment, and the grounding switch shaft 10 cannot be closed because the limiting block 9 is clamped, and further, the interlocking structure of the grounding switch shaft 10 and the isolating switch shaft 2 is realized, the operation is very convenient, then before the grounding switch shaft 10 and the isolating switch shaft 2 are operated, the opening and closing locking block 13 is clamped in the solid block 12, the solid block 12 is fixedly connected with the breaker opening and closing shaft 11, so that the breaker opening and closing shaft 11 can not rotate to carry out the closing operation, the potential safety hazard brought by directly starting the breaker main body 1 is prevented, finally, after the grounding switch shaft 10 and the isolating switch shaft 2 are operated, the opening and closing locking block 13 is pressed to form a locking state, at the moment, the solid block 12 loses the limitation, so that the breaker opening and closing shaft 11 can carry out the starting operation, and the bottom end of the opening and closing block 13 is clamped in the groove at the top end of the locking block 8, so that the grounding switch shaft 10 and the isolating switch shaft 2 can not be operated, and the breaker opening and closing shaft 11 must be firstly switched when the equipment is closed, the opening and closing locking block 13 is unlocked, so that the safety is ensured, and the three-station interlocking structure is realized.
In the present invention, unless otherwise specifically stated or limited, the terms "sliding", "rotating", "fixed", "provided", and the like are to be understood broadly, and may be, for example, welded, bolted, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides an keep apart three station interlocks of divide-shut brake, includes circuit breaker main part (1), its characterized in that, the front of circuit breaker main part (1) is provided with isolator axle (2), be equipped with main interlock (3) on isolator axle (2), the side of main interlock (3) is connected with tightening spring (4), and the bottom of main interlock (3) is connected with trace (5), the bottom of trace (5) is connected with vice interlock (6), be connected with on vice interlock (6) and lock position axle (7), be connected with on lock position axle (7) and lock position piece (8), the below of lock position piece (8) is equipped with stopper (9), be connected with earthing switch axle (10) on stopper (9), the front of circuit breaker main part (1) is equipped with circuit breaker divide-shut brake axle (11), be equipped with solid divide-shut brake block (12) on circuit breaker axle (11), and a switching-on and switching-off locking block (13) is arranged below the solid block (12).
2. The three-station interlocking of the isolation switch-on and switch-off according to claim 1, characterized in that the isolation switch shaft (2) is rotatably connected with the breaker body (1) and is fixedly connected with the main linkage member (3), and the main linkage member (3) is fixedly connected with the compression spring (4).
3. The isolated switching-on/off three-station interlocking device according to claim 1, wherein the main linkage (3) is connected with the linkage (5) through a rotating shaft, the linkage (5) is connected with the auxiliary linkage (6) through a rotating shaft, and the auxiliary linkage (6) is fixedly connected with the locking shaft (7).
4. The isolating switch-on/switch-off three-station interlocking mechanism is characterized in that the locking shaft (7) is rotatably connected with the breaker body (1) and is fixedly connected with the locking block (8), a protruding block at the bottom of the locking block (8) is clamped in a groove of the limiting block (9) when the isolating switch shaft (2) is switched off, and a protruding block at the top of the limiting block (9) is clamped in a groove of the locking block (8) when the isolating switch shaft (2) is switched on.
5. An isolation switch-on-off three-station interlocking according to claim 1, characterized in that the switch-on and switch-off shaft (11) of the circuit breaker is rotatably connected with the circuit breaker main body (1) and fixedly connected with the solid block (12), and the groove at the bottom end of the solid block (12) is clamped outside the switch-on and switch-off locking block (13) when the circuit breaker main body (1) is opened.
6. The isolated switch-on-off three-station interlocking device is characterized in that the position surfaces of the switch-on-off locking block (13) and the solid block (12) are higher than the locking block (8), and the bottom end of the switch-on-off locking block (13) is clamped in a groove at the top end of the locking block (8) when the switch-on-off locking block (13) is pressed to the position surface higher than the locking block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122880656.5U CN216928336U (en) | 2021-11-23 | 2021-11-23 | Three-station interlocking for isolating switch-on and switch-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122880656.5U CN216928336U (en) | 2021-11-23 | 2021-11-23 | Three-station interlocking for isolating switch-on and switch-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216928336U true CN216928336U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122880656.5U Active CN216928336U (en) | 2021-11-23 | 2021-11-23 | Three-station interlocking for isolating switch-on and switch-off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216928336U (en) |
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2021
- 2021-11-23 CN CN202122880656.5U patent/CN216928336U/en active Active
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