10KV indoor circuit breaker mechanism locking and closing program mechanical interlock

Abstract

The utility model discloses a 10KV indoor circuit breaker mechanism locking and closing program mechanical interlock, and aims to provide the 10KV indoor circuit breaker mechanism locking and closing program mechanical interlock which is simple and convenient to operate and high in reliability, and the key points of the technical scheme are that a program lock is arranged between right side plates, the closing / opening of a circuit breaker can be controlled by rotating a program lock knob, and the closing / opening of the circuit breaker can be controlled by rotating the program lock knob. When the knob is rotated anticlockwise, the circuit breaker is switched off; when the knob is rotated clockwise, the circuit breaker is switched on, so that mechanical interlocking of a circuit breaker mechanism locking and switching-on program is realized, the operation safety and reliability of the circuit breaker are improved, accidents caused by misoperation are effectively prevented, and the safety interlocking device is suitable for the technical field of safety control of 10KV indoor circuit breakers.

Description

Technical Field

[0001] The utility model relates to a mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism. More specifically, it relates to a mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism with simple operation and high reliability. Background Art

[0002] A 10KV indoor circuit breaker is a switching device used in the indoor environment of a power system with a voltage level of 10 kilovolts, and a mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism is a mechanical device used to ensure the safe operation of a 10KV indoor circuit breaker. The mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism is mainly used to ensure that the circuit breaker performs opening and closing operations in a specific sequence, preventing operators from causing accidents due to incorrect operations; preventing closing or opening at inappropriate times, and protecting the circuit breaker itself and related electrical equipment from damage. However, the existing mechanical interlocks for the closing and opening procedures of 10KV indoor circuit breaker mechanisms on the market have disadvantages such as complex operation and unreliable interlock. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: By adopting the above technical solutions, a mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism includes a left side plate and a right side plate arranged oppositely, and a program lock is provided between the left side plate and the right side plate. A shunt trip electromagnet is provided on the right side plate, and a reclosing interlock outer plate is provided at the bottom end of the shunt trip electromagnet. A reclosing interlock cam is provided on one side of the reclosing interlock outer plate, and a reclosing interlock inner plate is provided on the other side. A closing half shaft is provided at the bottom end of the reclosing interlock inner plate, and a closing half shaft lock plate is provided on the closing half shaft.

[0005] By adopting the above technical solutions, the closing / opening of the circuit breaker can be controlled by rotating the program lock knob. When the knob is rotated counterclockwise, the circuit breaker trips; when the knob is rotated clockwise, the circuit breaker closes, realizing the mechanical interlock of the closing and opening procedures of the circuit breaker mechanism, improving the safety and reliability of the circuit breaker operation, and effectively preventing accidents caused by misoperation.

[0006] The circuit breaker closes, realizing the mechanical interlock of the closing and opening procedures of the circuit breaker mechanism, improving the safety and reliability of the circuit breaker operation, and effectively preventing accidents caused by misoperation.

[0007] The present utility model is further configured as follows: The program lock includes a knob disposed on the outer side of the program lock and a telescopic rod connected to the knob in a matching manner. The bottom end of the program lock is provided with a program lock mounting plate. The program lock is fixedly connected to the right side plate. The inner side of the program lock is provided with a program lock locking plate, and the program lock locking plate is fixedly connected to the telescopic rod. The right side plate is provided with a positioning hole, and the program lock locking plate is provided with a protrusion extending outward and inserted into the positioning hole.

[0008] By adopting the above technical solution, when the program lock knob is rotated counterclockwise, the program lock locking plate is pressed down, linking the reclosing interlock inner plate, so that the reclosing interlock inner plate locks the closing half shaft locking plate, thereby realizing tripping; conversely, when the program lock knob is rotated clockwise, the program lock locking plate rises, linking the reclosing interlock inner plate, so that the closing half shaft locking plate rotates, thereby realizing closing. This design can ensure that the circuit breaker performs tripping and closing in the correct operating sequence, improving the safety and stability of the power system.

[0009] The present utility model is further configured as follows: The reclosing interlock outer plate is provided with two positioning holes which are arranged vertically. The right side plate is provided with a relative through hole. The reclosing interlock outer plate and the right side plate are slidably connected. The top end of the reclosing interlock outer plate is provided with a protrusion extending outward. One end of the reclosing interlock inner plate is placed inside the reclosing interlock outer plate and at the bottom end of the reclosing interlock outer plate. The protrusions are connected to the bottom end of the reclosing interlock outer plate and the top end of the reclosing interlock inner plate by tension springs.

[0010] By adopting the above technical solution, when the tension spring drives the reclosing interlock outer plate, the reclosing interlock inner plate is driven to slide down, so that the reclosing interlock inner plate abuts against the closing half shaft locking plate, realizing the sliding connection between the reclosing interlock outer plate and the right side plate, making the movement of the reclosing interlock outer plate smoother and more stable, and ensuring that the mechanism cannot be closed twice when in the closing state.

[0011] The present utility model is further configured as follows: The reclosing interlock outer plate is in the shape of "7", and the reclosing interlock cam is located at the corner of the reclosing interlock outer plate. The top end of the reclosing interlock cam abuts against the reclosing interlock outer plate. When the reclosing interlock cam disengages from the reclosing interlock outer plate, the reclosing interlock outer plate slides downwards.

[0012] By adopting the above technical solution, the design of the reclosing interlock outer plate in cooperation with the position of the reclosing interlock cam makes the structure more compact and occupies less space. When the reclosing interlock cam disengages from the reclosing interlock outer plate, the reclosing interlock outer plate can slide down quickly, realizing the corresponding interlock action, and improving the response speed and operation accuracy of the circuit breaker.

[0013] The present utility model is further configured such that: the closing half - shaft lock plate is also in a "7" shape, the closing half - shaft lock plate is located at the bottom of the reclosing interlock inner plate, and the closing half - shaft lock plate is fixedly connected to the closing half - shaft. When the reclosing interlock inner plate slides downward, the rotation of the closing half - shaft lock plate is stopped.

[0014] By adopting the above - mentioned technical solution, the design of the closing half - shaft lock plate and the position of the reclosing interlock inner plate are reasonably matched, and the interlock function can be effectively realized.

[0015] The present utility model is further configured such that: a rotating shaft is provided inside the reclosing interlock cam, and the reclosing interlock cam is fixedly connected to the rotating shaft.

[0016] By adopting the above - mentioned technical solution, the setting of the rotating shaft provides a stable support and a rotation center for the reclosing interlock cam, ensuring that the cam can rotate accurately and enabling it to cooperate precisely with other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall view of an embodiment of the mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism lock of the present utility model;

[0018] Figure 2 is a partial schematic view of an embodiment of the right - hand side plate of the present utility model;

[0019] Figure 3 is a partial schematic view of the interior of the right - hand side plate of the present utility model;

[0020] In the figure: 1, left - hand side plate; 2, right - hand side plate; 3, opening electromagnet; 4, program lock; 5, reclosing interlock outer plate; 6, reclosing interlock cam; 7, reclosing interlock inner plate; 8, program lock mounting plate; 9, program lock lock plate; 10, tension spring; 11, tension spring; 12, closing half - shaft lock plate; 13, closing half - shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Refer to Figures 1 to 3 to further describe an embodiment of the mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism lock of the present utility model.

[0022] For ease of explanation, in the embodiments, spatial relative terms such as "upper", "lower", "left", "right", etc. are used to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "below" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "lower" can include both the upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0023] Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0024] A mechanical interlock for the closing and opening procedures of a 10KV indoor circuit breaker mechanism includes a left side plate 1 and a right side plate 2 arranged opposite to each other, and a program lock 4 is provided between the left side plate 1 and the right side plate 2. A tripping electromagnet 3 is provided on the right side plate 2, and a reclosing interlock outer plate 5 is provided at the bottom end of the tripping electromagnet 3. A reclosing interlock cam 6 is provided on one side of the reclosing interlock outer plate 5, and a reclosing interlock inner plate 7 is provided on the other side. A closing half shaft 13 is provided at the bottom end of the reclosing interlock inner plate 7, and a closing half shaft lock plate 12 is provided on the closing half shaft 13. By rotating the knob of the program lock 4, the closing and opening of the circuit breaker can be controlled. When the knob is rotated counterclockwise, the circuit breaker trips; when the knob is rotated clockwise, the circuit breaker closes, realizing the mechanical interlock for the closing and opening procedures of the circuit breaker mechanism, improving the safety and reliability of the circuit breaker operation, and effectively preventing accidents caused by misoperation.

[0025] Preferably, the program lock 4 includes a knob provided on the outer side of the program lock 4 and a telescopic rod connected to the knob in a matching manner. A program lock mounting plate 8 is provided at the bottom end of the program lock 4. The program lock 4 is fixedly connected to the right side plate 2. A program lock plate 9 is provided inside the program lock 4, and the program lock plate 9 is fixedly connected to the telescopic rod. The right side plate 2 is provided with a positioning hole. A protrusion extending outward and inserted into the positioning hole is provided on the program lock plate 9. When the knob of the program lock 4 is rotated counterclockwise, the program lock plate 9 is pressed down, linking the reclosing interlock inner plate 7 to lock the closing half shaft lock plate 12, thereby realizing tripping; conversely, when the knob of the program lock 4 is rotated clockwise, the program lock plate 4 rises, linking the reclosing interlock inner plate 7 to rotate the closing half shaft 13 lock plate, thereby realizing closing. This design can ensure that the circuit breaker closes and opens in the correct operation sequence, improving the safety and stability of the power system.

[0026] Preferably, two positioning holes are provided in the reclosing lock interlock outer plate 5 and the two positioning holes are arranged up and down, the right side plate 2 is provided with relative through holes, the reclosing lock interlock outer plate 5 and the right side plate 2 are slidably connected, and a protrusion extending outward is provided at the top of the reclosing lock interlock outer plate 5, and one end of the reclosing lock interlock inner plate 7 is placed in the reclosing lock interlock outer plate 5 and at the bottom end of the reclosing lock interlock outer plate 5, and the protrusions are respectively connected with the tension springs 10 provided at the bottom end of the reclosing lock interlock outer plate 5 and the top end of the reclosing lock interlock inner plate 7. When the tension spring 10 drives the reclosing lock interlock outer plate 5, it drives the reclosing lock interlock inner plate 7 to slide down, so that the reclosing lock interlock inner plate 7 conflicts with the closing half-axis lock plate 12, thereby realizing the sliding connection between the reclosing lock interlock outer plate 5 and the right side plate 2, making the movement of the reclosing lock interlock outer plate 5 smoother and more stable, ensuring that the mechanism cannot be closed twice when in the closed state.

[0027] Preferably, the reclosing interlocking outer plate 5 is in a "7" shape and the reclosing interlocking cam 6 is located at the corner of the reclosing interlocking outer plate 5, the top of the reclosing interlocking cam 6 conflicts with the reclosing interlocking outer plate 5, when the reclosing interlocking cam 6 is separated from the reclosing interlocking outer plate 5, the reclosing interlocking outer plate 5 slides downward, the reclosing interlocking outer plate 5 is designed to match the position of the reclosing interlocking cam 6, so that the structure is more compact and occupies less space, when the reclosing interlocking cam 6 is separated from the reclosing interlocking outer plate 5, the reclosing interlocking outer plate 5 can slide downward quickly to achieve the corresponding interlocking action, thereby improving the response speed and operation accuracy of the circuit breaker.

[0028] Preferably, the closing half-shaft lock plate 12 is also in a "7" shape. The closing half-shaft lock plate 12 is located at the bottom of the reclosing interlocking inner plate 7. The closing half-shaft lock plate 12 is fixedly connected to the closing half-shaft 13. When the reclosing interlocking inner plate 7 slides downward, the closing half-shaft lock plate 12 stops rotating. The design of the closing half-shaft lock plate 12 is reasonably coordinated with the position of the reclosing interlocking inner plate 7, and can effectively realize the interlocking function.

[0029] Preferably, a rotating shaft is provided in the reclosing interlocking cam 6, and the reclosing interlocking cam 6 is fixedly connected to the rotating shaft. The setting of the rotating shaft provides a stable support and rotation center for the reclosing interlocking cam 6, ensuring that the cam can rotate accurately so that it can work accurately with other components.

[0030] When the mechanism is in the closed state, the reclosing interlocking cam 6 is separated from the reclosing interlocking outer plate 5, and the tension spring 11 drives the reclosing interlocking outer plate 5, and the reclosing interlocking inner plate 7 slides down, so that the reclosing interlocking inner plate 7 locks the closing half shaft 13 interlocking plate, restricting the closing half shaft 13 from rotating clockwise, ensuring that the mechanism cannot be closed twice in the closed state;

[0031] When the mechanism is in the open state, rotate the program lock 4 to drive the program lock plate 9 to press down, and link the reclosing interlock inner plate 7, so that the reclosing interlock inner plate 7 locks the closing half shaft lock plate 12, restricting the clockwise rotation of the closing half shaft 13, and ensuring that the mechanism cannot be closed twice when it is in the closed state.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlock, characterized in that: The invention comprises a left plate (1) and a right plate (2) which are arranged opposite to each other, and a program lock (4) is arranged between the left plate (1) and the right plate (2); a gate-opening electromagnet (3) and a reclosing interlocking outer plate (5) arranged at the bottom end of the gate-opening electromagnet (3) are arranged on the right plate (2); a reclosing interlocking cam (6) is arranged on one side of the reclosing interlocking outer plate (5) and a reclosing interlocking inner plate (7) is arranged on the other side; a closing half-shaft (13) is arranged at the bottom end of the reclosing interlocking inner plate (7), and a closing half-shaft locking plate (12) is arranged on the closing half-shaft (13).

2. According to claim 1, a 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlock, characterized in that: The program lock (4) comprises a knob arranged on the outside of the program lock (4) and a telescopic rod matched with the knob, a program lock mounting plate (8) is arranged at the bottom end of the program lock (4), the program lock (4) is fixedly connected to the right side plate (2), a program lock plate (9) is arranged on the inside of the program lock (4), and the program lock plate (9) is fixedly connected to the telescopic rod, the right side plate (2) is provided with a positioning hole, and a protrusion extending outward and inserted into the positioning hole is arranged on the program lock plate (9). When the program lock (4) is rotated counterclockwise, the protrusion is locked. When the lock (4) knob is turned, the program lock plate (9) is pressed down, and the reclosing interlocking inner plate (7) is linked, so that the reclosing inner plate locks the closing half-shaft lock plate (12), thereby causing the mechanism to enter a program lock working state, at which time the mechanism cannot perform a closing operation state; conversely, when the program lock (4) knob is turned clockwise, the program lock plate (9) is raised, and the reclosing interlocking inner plate (7) is linked, so that the closing half-shaft lock plate can be rotated, thereby realizing a program lock release state, and causing the mechanism to enter a closing state.

3. According to claim 1, a 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlocking is characterized in that: The reclosing lock interlocking outer plate (5) is provided with two positioning holes, and the two positioning holes are arranged up and down. The right side plate (2) is provided with relative through holes. The reclosing lock interlocking outer plate (5) and the right side plate (2) are slidably connected. The top of the reclosing lock interlocking outer plate (5) is provided with a protrusion extending outward. One end of the reclosing lock interlocking inner plate (7) is placed in the reclosing lock interlocking outer plate (5) and is located at the bottom of the reclosing lock interlocking outer plate (5). The protrusion is respectively connected with the bottom of the reclosing lock interlocking outer plate (5) and the top of the reclosing lock interlocking inner plate (7). When the protrusion (11) drives the reclosing lock interlocking outer plate (5), it drives the reclosing lock interlocking inner plate (7) to slide down, so that the reclosing lock interlocking inner plate (7) conflicts with the locking plate of the closing half shaft (13).

4. A 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlock according to claim 3, characterized in that: The reclosing lock interlocking outer plate (5) is in a "7" shape and the reclosing lock interlocking cam (6) is located at a corner of the reclosing lock interlocking outer plate (5). The top end of the reclosing lock interlocking cam (6) abuts against the reclosing lock interlocking outer plate (5). When the reclosing lock interlocking cam (6) is separated from the reclosing lock interlocking outer plate (5), the reclosing lock interlocking outer plate (5) slides downward.

5. According to claim 1, a 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlock, characterized in that: The closing half-shaft lock plate (12) is also in a "7" shape. The closing half-shaft lock plate (12) is located at the bottom of the reclosing interlocking inner plate (7). The closing half-shaft lock plate (12) is fixedly connected to the closing half-shaft (13). When the reclosing interlocking inner plate (7) slides downward, the closing half-shaft lock plate (12) stops rotating.

6. A 10KV indoor circuit breaker mechanism lock closing procedure mechanical interlock according to claim 3, characterized in that: A rotating shaft is arranged inside the reclosing lock cam (6), and the reclosing lock cam (6) is fixedly connected to the rotating shaft.

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