CN219476528U - Interlocking mechanism of 24KV solid insulation switch cabinet - Google Patents

Abstract

The utility model relates to a 24KV solid insulation switch cabinet interlocking mechanism which comprises a support plate, an isolation operation shaft, a grounding operation shaft, a closing operation shaft, a separating brake indicating shaft and an energy storage operation shaft, wherein the isolation operation shaft is connected with a first isolation interlocking rod through a first isolation crank arm, the first isolation interlocking rod is provided with a first grounding shaft baffle plate, the isolation operation shaft is connected with a second isolation interlocking rod through a second isolation crank arm, the second isolation interlocking rod is connected with a third isolation interlocking rod, the third isolation interlocking rod is provided with an energy storage shaft baffle plate, the grounding operation shaft is connected with a first grounding interlocking rod through a first grounding crank arm, the first grounding interlocking rod is provided with a first isolation shaft baffle plate, the closing brake indicating shaft is connected with a separating brake interlocking rod through a separating brake crank arm, and the separating brake interlocking rod is provided with a second isolation shaft baffle plate. The device has the advantages of simple structure, convenient operation, safety, reliability and strong practicability.

Description

Interlocking mechanism of 24KV solid insulation switch cabinet

Technical Field

The utility model relates to a switch cabinet, in particular to an interlocking mechanism for a 24KV solid insulation switch cabinet.

Background

The electric five-prevention is a powerful guarantee for realizing the safe production of electric power, and five-prevention interlocking is designed aiming at a solid insulation switch cabinet (an insulation ring main unit) in the field. The existing five-prevention interlocking generally adopts a cam structure form, such as the five-prevention interlocking and an insulating ring main unit disclosed by the publication number CN208241175U, and for a three-station solid insulating switch, the same isolating and grounding operation shaft is mostly used, and an operator can perform misoperation on isolation and grounding due to the fact that an isolating and grounding state exists, so that great potential safety hazards are brought; and for the power transmission process, the correct operation sequence is to close the isolating circuit breaker first and then close the circuit breaker, so that the interlocking of isolating and breaking and closing is very necessary to be additionally arranged in the interlocking mechanism.

Disclosure of Invention

The utility model aims to provide a 24KV solid insulation switch cabinet interlocking mechanism which has the advantages of simple structure, convenience in operation, safety, reliability and strong practicability.

The utility model provides a 24KV solid insulation switch cabinet interlocking mechanism, which aims to solve the problems of isolation and grounding misoperation in the prior art, and comprises a support plate, an isolation operation shaft, a grounding operation shaft, a closing operation shaft, a brake separating indication shaft and an energy storage operation shaft which are arranged on the support plate through bearings, wherein the isolation operation shaft is connected with a first isolation interlocking rod which moves left and right through a first isolation crank arm, the first isolation interlocking rod is provided with a first grounding shaft baffle which shields the grounding operation shaft during isolation, the isolation operation shaft is connected with a second isolation interlocking rod which moves up and down through a second isolation crank arm, the second isolation interlocking rod is connected with a rotatable third isolation interlocking rod, the third isolation interlocking rod is provided with a first grounding interlocking rod which isolates the time-sharing brake storing operation shaft, the first grounding interlocking rod which moves left and right is connected with the grounding operation shaft through the first grounding crank arm, the first isolation locking rod which shields the operation shaft during grounding operation shaft is provided with a first isolation blocking rod which shields the brake separating operation shaft, the isolation blocking rod is provided with a second isolation blocking rod which is matched with a second isolation blocking rod during the time-sharing brake separating operation shaft is connected with a second isolation blocking rod, and the brake separating operation blocking rod is provided with a second isolation blocking rod which is connected with a brake separating blocking rod.

Further, the utility model relates to a 24KV solid insulation switch cabinet interlocking mechanism, wherein the grounding operation shaft is connected with a second grounding interlocking rod which moves up and down through a second grounding crank arm, and the second grounding interlocking rod is used for locking the door closing state of a switch cabinet bin door in a grounding time-sharing manner; the switch cabinet door is connected with a door interlocking rod which moves up and down, and the door interlocking rod is provided with a second grounding shaft baffle plate which shields the grounding operation shaft when the switch cabinet door is opened.

Furthermore, the utility model relates to a 24KV solid insulation switch cabinet interlocking mechanism, wherein an energy storage indicating shaft is further arranged on the support plate through a bearing.

Furthermore, the utility model discloses a 24KV solid insulation switch cabinet interlocking mechanism, wherein the first insulation interlocking rod is of a plate-shaped structure, a first oblong hole along the length direction is formed in the first insulation interlocking rod, a first guide pin fixed on a support plate is arranged in the first oblong hole, a second oblong hole perpendicular to the first oblong hole in the length direction is formed in the end part of the first insulation interlocking rod, opposite to the first insulation crank arm, of the first insulation interlocking rod, and a second guide pin fixed on the first insulation crank arm is arranged in the second oblong hole.

Furthermore, the utility model discloses a 24KV solid insulation switch cabinet interlocking mechanism, wherein the second isolation interlocking rod is of a plate-shaped structure, a third oblong hole along the length direction is formed in the second isolation interlocking rod, a third guide pin fixed on a support plate is arranged in the third oblong hole, a fourth oblong hole perpendicular to the third oblong hole in the length direction is formed in the end part of the second isolation interlocking rod, opposite to the second isolation crank arm, of the second isolation interlocking rod, and a fourth guide pin fixed on the second isolation crank arm is arranged in the fourth oblong hole.

Furthermore, the interlocking mechanism of the 24KV solid insulation switch cabinet is characterized in that the third insulation interlocking rod is of a plate-shaped structure, the middle part of the third insulation interlocking rod is hinged with a pin shaft fixed on the support plate, a fifth oblong hole along the length direction is formed in the end part of the third insulation interlocking rod, opposite to the second insulation interlocking rod, and a fifth guide pin fixed on the second insulation interlocking rod is arranged in the fifth oblong hole.

Furthermore, the utility model relates to a 24KV solid insulation switch cabinet interlocking mechanism, wherein the first grounding interlocking rod is of a plate-shaped structure, a sixth oblong hole along the length direction is formed in the first grounding interlocking rod, a sixth guide pin fixed on a support plate is arranged in the sixth oblong hole, a seventh oblong hole perpendicular to the sixth oblong hole in the length direction is formed in the end part of the first grounding interlocking rod, opposite to the first grounding crank arm, of the first grounding interlocking rod, and a seventh guide pin fixed on the first grounding crank arm is arranged in the seventh oblong hole.

Furthermore, the utility model discloses a 24KV solid insulation switch cabinet interlocking mechanism, wherein the opening and closing interlocking rod is of a plate-shaped structure, an eighth long round hole along the length direction is formed in the opening and closing interlocking rod, an eighth guide pin fixed on a support plate is arranged in the eighth long round hole, a ninth long round hole perpendicular to the eighth long round hole in the length direction is formed in the end part, opposite to the opening and closing crank arm, of the opening and closing interlocking rod, and a ninth guide pin fixed on the opening and closing crank arm is arranged in the ninth long round hole.

Furthermore, the utility model discloses a 24KV solid insulation switch cabinet interlocking mechanism, wherein the second grounding interlocking rod is of a plate-shaped structure, a tenth oblong hole along the length direction is formed in the second grounding interlocking rod, a tenth guide pin fixed on a support plate is arranged in the tenth oblong hole, an eleventh oblong hole perpendicular to the tenth oblong hole in the length direction is formed in the end part, opposite to the second grounding connecting lever, of the second grounding interlocking rod, and an eleventh guide pin fixed on the second grounding connecting lever is arranged in the eleventh oblong hole.

Furthermore, the utility model relates to a 24KV solid insulation switch cabinet interlocking mechanism, wherein the bin gate interlocking rod is of a plate-shaped structure, a twelfth oblong hole along the length direction is formed in the bin gate interlocking rod, and a twelfth guide pin fixed on a support plate is arranged in the twelfth oblong hole.

Compared with the prior art, the interlocking mechanism of the 24KV solid insulation switch cabinet has the following advantages: according to the utility model, the support plate, the isolation operation shaft, the grounding operation shaft, the closing operation shaft, the opening and closing indication shaft and the energy storage operation shaft are arranged on the support plate through bearings, so that the isolation operation shaft is connected with a first isolation interlocking rod which moves left and right through a first isolation crank arm, the first isolation interlocking rod is provided with a first grounding shaft baffle which shields the grounding operation shaft when isolated, the isolation operation shaft is connected with a second isolation interlocking rod which moves up and down through a second isolation crank arm, the second isolation interlocking rod is connected with a rotatable third isolation interlocking rod, the third isolation interlocking rod is provided with an energy storage shaft baffle which shields the energy storage operation shaft when isolated, the grounding operation shaft is connected with a first grounding interlocking rod which moves left and right through the first grounding crank arm, the first grounding interlocking rod is provided with a limiting block which is matched with the second isolation interlocking rod when isolated time-sharing, and the opening and closing indication shaft is connected with a second isolation interlocking rod through an opening and closing crank arm, and the third isolation interlocking rod is provided with a second isolation blocking rod which shields the isolation operation shaft when isolated and is connected with the opening and closing operation shaft. Therefore, the 24KV solid insulation switch cabinet interlocking mechanism is simple in structure, convenient to operate and control, safe, reliable and high in practicability, in practical application, the support plate is fixed in the switch cabinet, the isolation operation shaft and the grounding operation shaft are connected with the isolation switch operation mechanism, and the closing operation shaft, the opening and closing indication shaft and the energy storage operation shaft are connected with the circuit breaker operation mechanism. When the isolating switch is in a switching-off state, the energy storage operation shaft cannot store energy of the circuit breaker through the shielding effect of the energy storage shaft baffle plate on the energy storage operation shaft, and the switching-on operation shaft cannot switch on the circuit breaker through the blocking effect of the second isolating interlocking rod on the limiting block; when the isolating switch is switched on, the isolating operation shaft is rotated clockwise, the first isolating crank arm drives the first isolating and connecting rod to move right and shield the grounding operation shaft through the first grounding shaft baffle plate, the second isolating crank arm drives the second isolating and connecting rod to move downwards and clear the blocking of the limiting block, and the third isolating and connecting rod is driven to rotate so that the energy storage shaft baffle plate clear the shielding of the energy storage operation shaft; the isolating switch is in a closing state, the energy storage operation shaft can be used for storing energy for the circuit breaker, the closing operation shaft is rotated clockwise to close the circuit breaker after the energy storage is completed, the opening and closing indication shaft can rotate clockwise under the transmission of the circuit breaker operation mechanism, the opening and closing connecting rod is driven by the opening and closing connecting lever to move downwards so that the second isolating shaft baffle plate shields the isolating operation shaft, at the moment, the isolating switch cannot be opened through the isolating operation shaft without opening the circuit breaker, the correct operation sequence of 'firstly closing and then closing the circuit breaker, firstly opening the circuit and then isolating' is ensured, and in addition, under the closing state of the isolating switch, the grounding closing cannot be carried out through shielding of the first grounding shaft baffle plate to the grounding operation shaft, so that misoperation can be effectively avoided. When the isolating switch is opened, the isolating switch is firstly rotated clockwise to open the isolating switch operating shaft, the opening and closing indicating shaft can rotate anticlockwise under the transmission of the breaker operating mechanism, the opening and closing connecting rod is driven by the opening and closing connecting lever to move upwards to enable the second isolating shaft baffle to give way to shield the isolating switch operating shaft, then the isolating switch can be opened by rotating the isolating switch operating shaft anticlockwise, the first isolating connecting lever can drive the first isolating connecting lever to move leftwards and enable the first grounding shaft baffle to give way to shield the grounding operating shaft, the second isolating connecting lever can drive the second isolating connecting lever to move upwards and block the limiting block, and the third isolating connecting lever is driven to rotate to enable the energy storage shaft baffle to shield the energy storage operating shaft. When the isolating switch is in a switching-off state and the grounding is switched on, the grounding operation shaft is rotated anticlockwise, the first grounding crank arm drives the first grounding interlocking rod to move rightwards and enables the first isolating shaft baffle to shield the isolating operation shaft, at the moment, the isolating switch cannot be switched on if the grounding switching-off is not carried out, misoperation is effectively avoided, and safety is guaranteed; when the grounding is switched off, the grounding operation shaft is rotated clockwise, the first grounding crank arm can drive the first grounding interlocking rod to move left, the first isolation shaft baffle piece is enabled to give way to shielding the isolation operation shaft, and at the moment, the isolation switch can be switched on by rotating the isolation operation shaft clockwise. According to the analysis, the interlocking mechanism of the 24KV solid insulation switch cabinet provided by the utility model ensures the correct operation sequence of 'switching on and off firstly and switching off secondly, switching off firstly and switching off secondly and switching on and off secondly', can effectively avoid misoperation on isolation and grounding, and improves the safety and reliability.

The interlocking mechanism of the 24KV solid-insulated switchgear is further described in detail below with reference to the specific embodiments shown in the drawings.

Drawings

FIG. 1 is a front view of an interlocking mechanism of a 24KV solid-insulated switchgear of the present utility model;

FIG. 2 is a left side view of an interlocking mechanism of a 24KV solid-insulated switchgear of the present utility model;

FIG. 3 is a right side view of an interlocking mechanism of a 24KV solid insulation switch cabinet according to the utility model

FIG. 4 is an isometric view of an interlocking mechanism of a 24KV solid-insulated switchgear of the present utility model;

fig. 5 is a second perspective view of an interlocking mechanism of a 24KV solid insulation switchgear of the present utility model.

Detailed Description

First, it should be noted that the terms of up, down, left, right, front, back, etc. in the present utility model are merely described according to the drawings, so as to facilitate understanding, and are not limited to the technical solution of the present utility model and the scope of protection claimed.

The specific embodiment of the 24KV solid-insulated switchgear interlocking mechanism disclosed by the utility model comprises a support plate 1, and an isolation operation shaft 2, a grounding operation shaft 3, a closing operation shaft 4, a separating operation shaft 5, a separating and closing indication shaft 6 and an energy storage operation shaft 7 which are arranged on the support plate 1 through bearings, wherein the separating and closing operation shaft is shown in the figures 1 to 5. The isolation operation shaft 2 is connected with a first isolation interlocking rod 23 which moves left and right through a first isolation crank arm 21, the first isolation interlocking rod 23 is provided with a first grounding shaft baffle 231 which shields the grounding operation shaft 3 when in isolation, the isolation operation shaft 2 is connected with a second isolation interlocking rod 24 which moves up and down through a second isolation crank arm 22, the second isolation interlocking rod 24 is connected with a rotatable third isolation interlocking rod 25, and the third isolation interlocking rod 25 is provided with an energy storage shaft baffle 251 which shields the energy storage operation shaft 7 when in isolation. The first grounding link lever 32 which moves left and right is connected to the grounding operation shaft 3 via the first grounding lever 31, and the first grounding link lever 32 is provided with a first isolation shaft blocking piece 321 which blocks the isolation operation shaft 2 when grounded. A stopper 41 is provided on the closing operation shaft 4 to be engaged with the second insulating lock lever 24 in an insulating manner. The opening and closing indicating shaft 6 is connected with the opening and closing interlocking rod 62 which moves up and down through the opening and closing crank arm 61, and the opening and closing interlocking rod 62 is provided with a second isolating shaft baffle 621 which shields the isolating operation shaft 2 when the opening and closing operation shaft is opened.

Through the structure, the interlocking mechanism of the 24KV solid insulation switch cabinet is simple in structure, convenient to operate and control, safe, reliable and high in practicability. In practical application, the support plate 1 is fixed in the switch cabinet, the isolating operation shaft 2 and the grounding operation shaft 3 are connected with the isolating switch operation mechanism, and the closing operation shaft 4, the opening operation shaft 5, the opening and closing indication shaft 6 and the energy storage operation shaft 7 are connected with the circuit breaker operation mechanism. When the isolating switch is in a switching-off state, the energy storage operation shaft 7 cannot store energy of the circuit breaker through the shielding effect of the energy storage shaft baffle sheet 251 on the energy storage operation shaft 7, and the switching-on operation shaft 4 cannot switch on the circuit breaker through the blocking effect of the second isolating and connecting rod 25 on the limiting block 41; when the isolating switch is switched on, the isolating operation shaft 2 is rotated clockwise, the first isolating crank arm 21 drives the first isolating and connecting rod 23 to move right and shield the grounding operation shaft 3 through the first grounding shaft baffle 231, the second isolating crank arm 22 drives the second isolating and connecting rod 24 to move downwards and clear the blocking of the limiting block 41, and drives the third isolating and connecting rod 25 to rotate so that the energy storage shaft baffle 251 clear the shielding of the energy storage operation shaft 7; under the state that the isolating switch is in the switch-on state, the energy storage operation shaft 7 can be used for storing energy for the circuit breaker, the switch-on operation shaft 4 is rotated clockwise to switch on the circuit breaker after the energy storage is completed, the switch-on and switch-off indication shaft 6 can rotate clockwise under the transmission of the circuit breaker operation mechanism, the switch-on and switch-off connecting rod 61 drives the switch-on and switch-off connecting rod 62 to move downwards so that the second isolating shaft baffle 621 shields the isolating operation shaft 2, at the moment, if the switch-on and switch-off of the circuit breaker is not performed, the isolating switch-off operation shaft 2 cannot be used for conducting the isolating switch-off, the correct operation sequence of switching-on and switch-off firstly, switching-off and switching-off secondly, and the shielding of the grounding operation shaft 3 cannot be conducted through the first grounding shaft baffle 231 under the switch-on state of the isolating switch, and misoperation can be effectively avoided. When the isolating switch is opened, the isolating switch operating shaft 5 is rotated clockwise at first, the opening and closing indicating shaft 6 rotates anticlockwise under the transmission of the breaker operating mechanism, the opening and closing connecting rod 62 is driven to move upwards by the opening and closing connecting lever 61 to enable the second isolating shaft blocking piece 621 to clear the shielding of the isolating operating shaft 2, then the isolating switch can be opened by rotating the isolating operating shaft 2 anticlockwise, the first isolating connecting lever 21 drives the first isolating connecting rod 23 to move leftwards and enables the first grounding shaft blocking piece 231 to clear the shielding of the grounding operating shaft 3, the second isolating connecting lever 22 drives the second isolating connecting rod 24 to move upwards and block the limiting block, and the third isolating connecting rod 25 is driven to rotate to enable the energy storage shaft blocking piece 251 to shield the energy storage operating shaft 7. When the isolating switch is in a brake separating state and the grounding is switched on, the grounding operation shaft 3 is rotated anticlockwise, the first grounding crank arm 31 drives the first grounding interlocking rod 32 to move rightwards and enables the first isolating shaft baffle 321 to shield the isolating operation shaft 2, and at the moment, the isolating switch cannot be switched on if the grounding brake separating is not carried out, so that misoperation is effectively avoided, and safety is ensured; when the grounding is switched off, the grounding operation shaft 3 is rotated clockwise, the first grounding crank arm 31 drives the first grounding interlocking rod 32 to move left and enables the first isolation shaft baffle 321 to give way to shield the isolation operation shaft 2, and at the moment, the isolation switch can be switched on by rotating the isolation operation shaft 2 clockwise. According to the analysis, the interlocking mechanism of the 24KV solid insulation switch cabinet provided by the utility model not only ensures the correct operation sequence of 'switching on and off firstly and switching off secondly, switching off firstly and switching off secondly and switching on secondly', but also can effectively avoid the misoperation of 'switching on grounding switch-on during isolation or switching on isolation switch-on during grounding switch-on', and improves the safety and reliability. It should be noted that, the above-mentioned disconnecting switch operating mechanism and breaker operating mechanism are all existing devices in the field, and their structures and connection relations with the disconnecting switch and breaker are well known to those skilled in the art; the isolation time refers to when the isolating switch is in a closing state, the isolation time refers to when the isolating switch is in a separating state, the grounding time refers to when the grounding is in a closing state, and the breaking time refers to when the circuit breaker is in a closing state.

As an optimization scheme, in the embodiment, the grounding operation shaft 3 is connected with a second grounding connecting rod 34 which moves up and down through a second grounding crank arm 33, so that the second grounding connecting rod 34 locks the door closing state of the cabin door of the switch cabinet when being grounded; and the switch cabinet door is connected with a door interlocking rod 8 which moves up and down, and the door interlocking rod 8 is arranged on a second grounding shaft baffle plate 81 which shields the grounding operation shaft 3 when the switch cabinet door is opened. The structure is provided with the second grounding connecting rod 34, so that the bin door of the switch cabinet can be opened after the grounding switch-on, and the safety and the reliability are improved; the bin gate of the switch cabinet can be ensured to be opened through the bin gate connecting rod 8 and the second grounding shaft baffle plate 81 so as to be incapable of conducting grounding brake separation, and the safety and the reliability are enhanced. It should be noted that the switch cabinet door is an existing device in the art and that the mating relationship with the second ground interlock lever 34 and the connection drive relationship with the door interlock lever 8 are all conventional arrangements in the art. In order to facilitate the visual understanding of the energy storage state of the circuit breaker, the energy storage indicating shaft 9 is further installed on the support plate 1 through a bearing, the energy storage indicating shaft 9 is connected with the circuit breaker operating mechanism, and when the circuit breaker is subjected to energy storage through the rotary energy storage operating shaft 7, the energy storage indicating shaft 9 synchronously acts through the transmission of the circuit breaker operating mechanism.

As a specific embodiment, the present utility model makes the first isolating interlock lever 23 adopt the following arrangement: the first isolation interlocking rod 23 is made to be of a plate-shaped structure, a first oblong hole along the length direction is formed in the first isolation interlocking rod 23, a first guide pin 11 fixed on the support plate 1 is arranged in the first oblong hole, a second oblong hole perpendicular to the first oblong hole in the length direction is formed in the end part of the first isolation interlocking rod 23 opposite to the first isolation crank arm 21, and a second guide pin 211 fixed on the first isolation crank arm 21 is arranged in the second oblong hole. The first isolated interlock lever 23 of this arrangement has the characteristics of simple structure, stable motion, and strong adaptability. It should be noted that, the first guide pin 11 not only plays a role in guiding the first insulation lock bar 23, but also plays a role in supporting the first insulation lock bar 23, and in order to prevent the first insulation lock bar 23 from falling off from the first guide pin 11, in practical application, a blocking ring and a snap spring (not shown in the figure) should be further provided on the first guide pin 11. Similarly, this embodiment allows the second isolating interlock lever 24 to be provided in the following manner: the second isolating and connecting rod 24 is in a plate-shaped structure, a third oblong hole along the length direction is arranged on the second isolating and connecting rod 24, a third guide pin 12 fixed on the support plate 1 is arranged in the third oblong hole, a fourth oblong hole with the length direction perpendicular to the third oblong hole is arranged at the end part of the second isolating and connecting rod 24 opposite to the second isolating and connecting rod 22, and a fourth guide pin 221 fixed on the second isolating and connecting rod 22 is arranged in the fourth oblong hole. The second isolation interlocking rod 24 has the characteristics of simple structure, stable action and strong adaptability, the third guide pin 12 plays a role in guiding the second isolation interlocking rod 24 and supporting the second isolation interlocking rod 24, and in order to prevent the second isolation interlocking rod 24 from falling off from the third guide pin 12, a baffle ring and a snap spring are arranged on the third guide pin 12. As a specific embodiment, the present utility model makes the third isolating interlock lever 25 adopt the following arrangement: the third isolation interlocking rod 25 is in a plate-shaped structure, the middle part of the third isolation interlocking rod 25 is hinged with the pin shaft 13 fixed on the support plate 1, a fifth oblong hole along the length direction is arranged at the end part of the third isolation interlocking rod 25 opposite to the second isolation interlocking rod 24, and a fifth guide pin 241 fixed on the second isolation interlocking rod 24 is arranged in the fifth oblong hole. The third isolated locking rod 25 has the characteristics of simple structure, stable action and strong adaptability, and in practical application, in order to prevent the third isolated locking rod 25 from falling off from the pin shaft 13 and the fifth guide pin 241, a baffle ring and a clamp spring are also arranged on the pin shaft 13 and the fifth guide pin 241.

As a specific embodiment, the present utility model adopts the following arrangement method for the first ground interlocking lever 32: the first ground interlocking lever 32 is configured in a plate-like structure, a sixth oblong hole is provided in the first ground interlocking lever 32 in the longitudinal direction, a sixth guide pin 14 fixed to the support plate 1 is provided in the sixth oblong hole, a seventh oblong hole perpendicular to the sixth oblong hole in the longitudinal direction is provided in the end portion of the first ground interlocking lever 32 opposite to the first ground crank arm 31, and a seventh guide pin 311 fixed to the first ground crank arm 31 is provided in the seventh oblong hole. The first grounding interlocking rod 32 has the characteristics of simple structure, stable action and strong adaptability. The sixth guide pin 14 plays a role in guiding the first ground interlocking bar 32 and supporting the first ground interlocking bar 32, and in order to prevent the first ground interlocking bar 32 from falling off the sixth guide pin 14, a stopper ring and a snap spring should be provided on the sixth guide pin 14 in practical application. As a specific embodiment, the present utility model makes the opening/closing interlock lever 62 adopt the following arrangement: the opening and closing interlocking lever 62 is in a plate-shaped structure, an eighth oblong hole along the length direction is formed in the opening and closing interlocking lever 62, an eighth guide pin 15 fixed on the support plate 1 is arranged in the eighth oblong hole, a ninth oblong hole with the length direction perpendicular to the eighth oblong hole is formed in the end part of the opening and closing interlocking lever 62 opposite to the opening and closing crank arm 61, and a ninth guide pin 611 fixed on the opening and closing crank arm 61 is arranged in the ninth oblong hole. The opening and closing interlocking rod 62 has the characteristics of simple structure, stable action and strong adaptability, the eighth guide pin 15 not only plays a role in guiding the opening and closing interlocking rod 62, but also plays a role in supporting the opening and closing interlocking rod 62, and in order to prevent the opening and closing interlocking rod 62 from falling off from the eighth guide pin 15, a baffle ring and a snap spring are also arranged on the eighth guide pin 15.

As a specific embodiment, the present utility model uses the following arrangement for the second ground interlock lever 34: the second ground interlocking lever 34 is configured in a plate-like structure, a tenth oblong hole in the longitudinal direction is provided in the second ground interlocking lever 34, a tenth guide pin 16 fixed to the support plate 1 is provided in the tenth oblong hole, an eleventh oblong hole in the longitudinal direction perpendicular to the tenth oblong hole is provided in the end of the second ground interlocking lever 34 opposite to the second ground connecting lever 33, and an eleventh guide pin 331 fixed to the second ground connecting lever 33 is provided in the eleventh oblong hole. The second ground connection interlocking rod 34 has the characteristics of simple structure, stable action and strong adaptability, the tenth guide pin 16 not only plays a guiding role on the second ground connection interlocking rod 34, but also plays a supporting role on the second ground connection interlocking rod 34, and in order to prevent the second ground connection interlocking rod 34 from falling off from the tenth guide pin 16, in practical application, a baffle ring and a snap spring are also arranged on the tenth guide pin 16. Similarly, the present embodiment makes the bin gate interlocking lever 8 adopt the following arrangement: the bin gate interlocking rod 8 is of a plate-shaped structure, a twelfth oblong hole along the length direction is formed in the bin gate interlocking rod 8, and a twelfth guide pin 17 fixed on the support plate 1 is arranged in the twelfth oblong hole. The door interlock lever 8 has the characteristics of simple structure, stable action and strong adaptability, the twelfth guide pin 17 plays a role in guiding the door interlock lever 8 and supporting the door interlock lever 8, and in order to prevent the door interlock lever 8 from falling off from the twelfth guide pin 17, a baffle ring and a snap spring are arranged on the twelfth guide pin 17 in practical application.

In addition, it should be noted that, in order to ensure the stability of the structure, the first oblong hole, the third oblong hole, the sixth oblong hole, the eighth oblong hole, the tenth oblong hole and the twelfth oblong hole are generally respectively and alternately arranged with two; handles are respectively arranged on the switching-on operation shaft 4 and the switching-off operation shaft 5 so as to facilitate operation, and identification caps are respectively arranged on the switching-on and switching-off indication shaft 6 and the energy storage indication shaft 9 so as to facilitate display of states; and the ends of the isolating operation shaft 2, the grounding operation shaft 3 and the energy storage operation shaft 7 are respectively in a hexagonal head structure so as to be operated through corresponding sleeves. Practical application shows that the utility model has the following beneficial effects: the five-prevention interlocking function consisting of isolation interlocking, grounding opposite door interlocking, isolation opposite gate interlocking and isolation opposite energy storage interlocking is realized, compared with the prior art, the correct operation sequence of 'first closing isolation and then closing circuit breaking, first breaking circuit and then separating' is ensured, misoperation of 'grounding closing when isolation or isolation closing when grounding' can be effectively avoided, and the safety and reliability are improved.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the utility model as claimed, and various modifications made by those skilled in the art according to the technical solution of the present utility model should fall within the scope of the utility model as defined in the claims without departing from the design concept of the present utility model.

Claims (10)

1. The utility model provides a 24KV solid insulation switch cabinet interlocking mechanism which is characterized by comprising a support plate (1) and an isolation operation shaft (2), a grounding operation shaft (3), a closing operation shaft (4), a separating brake operation shaft (5), a separating brake indication shaft (6) and an energy storage operation shaft (7) which are arranged on the support plate (1) through bearings, wherein the isolation operation shaft (2) is connected with a first isolation connecting rod (23) which moves left and right through a first isolation connecting lever (21), the first isolation connecting rod (23) is provided with a first grounding shaft baffle (231) which shields the grounding operation shaft (3) during isolation, the isolation operation shaft (2) is connected with a second isolation connecting rod (24) which moves up and down through a second isolation connecting lever (22), the second isolation connecting rod (24) is connected with a rotatable third isolation connecting rod (25), the third isolation connecting rod (25) is provided with an energy storage shaft baffle (251) which shields the energy storage operation shaft (7) during isolation time, the grounding operation shaft (3) is connected with a first grounding baffle (321) which moves left and right through a first grounding lever (31), the isolation connecting rod (32) is provided with an isolation connecting rod (32) which cooperates with the isolation connecting rod (32), the opening and closing indicating shaft (6) is connected with an opening and closing connecting rod (62) which moves up and down through an opening and closing connecting lever (61), and the opening and closing connecting rod (62) is provided with a second isolating shaft baffle (621) which shields the isolating operation shaft (2) during open circuit.

2. The interlocking mechanism of the 24KV solid-insulated switchgear according to claim 1, wherein the grounding operation shaft (3) is connected with a second grounding interlocking rod (34) which moves up and down through a second grounding crank arm (33), and the second grounding interlocking rod (34) is used for grounding and locking the closing state of the cabin door of the switchgear in a time sharing manner; the switch cabinet door is connected with a door interlocking rod (8) which moves up and down, and the door interlocking rod (8) is provided with a second grounding shaft baffle (81) which shields the grounding operation shaft (3) when the switch cabinet door is opened.

3. The interlocking mechanism of the 24KV solid insulation switch cabinet according to claim 2 is characterized in that an energy storage indicating shaft (9) is further installed on the support plate (1) through a bearing.

4. A 24KV solid insulation switchgear interlocking mechanism according to claim 3, wherein the first insulation interlocking rod (23) is in a plate structure, a first oblong hole along the length direction is formed in the first insulation interlocking rod (23), a first guide pin (11) fixed on the support plate (1) is arranged in the first oblong hole, a second oblong hole perpendicular to the first oblong hole in the length direction is formed in the end portion, opposite to the first insulation connecting lever (21), of the first insulation interlocking rod (23), and a second guide pin (211) fixed on the first insulation connecting lever (21) is arranged in the second oblong hole.

5. A 24KV solid insulation switchgear interlocking mechanism according to claim 3, wherein the second insulation interlocking rod (24) is in a plate structure, a third oblong hole along the length direction is formed in the second insulation interlocking rod (24), a third guide pin (12) fixed on the support plate (1) is arranged in the third oblong hole, a fourth oblong hole perpendicular to the third oblong hole in the length direction is formed at the end of the second insulation interlocking rod (24) opposite to the second insulation crank arm (22), and a fourth guide pin (221) fixed on the second insulation crank arm (22) is arranged in the fourth oblong hole.

6. A 24KV solid insulation switchgear interlocking mechanism according to claim 3, wherein the third insulation interlocking rod (25) has a plate structure, the middle part of the third insulation interlocking rod (25) is hinged with the pin shaft (13) fixed on the support plate (1), the end part of the third insulation interlocking rod (25) opposite to the second insulation interlocking rod (24) is provided with a fifth oblong hole along the length direction, and a fifth guide pin (241) fixed on the second insulation interlocking rod (24) is arranged in the fifth oblong hole.

7. The interlocking mechanism of the 24KV solid insulation switch cabinet according to claim 3, wherein the first grounding interlocking rod (32) is of a plate-shaped structure, a sixth oblong hole along the length direction is formed in the first grounding interlocking rod (32), a sixth guide pin (14) fixed on the support plate (1) is arranged in the sixth oblong hole, a seventh oblong hole perpendicular to the sixth oblong hole in the length direction is formed in the end portion, opposite to the first grounding crank arm (31), of the first grounding interlocking rod (32), and a seventh guide pin (311) fixed on the first grounding crank arm (31) is arranged in the seventh oblong hole.

8. The interlocking mechanism of the 24KV solid-insulated switchgear according to claim 3, wherein the opening and closing interlocking rod (62) is of a plate-shaped structure, an eighth oblong hole along the length direction is formed in the opening and closing interlocking rod (62), an eighth guide pin (15) fixed on the support plate (1) is arranged in the eighth oblong hole, a ninth oblong hole perpendicular to the eighth oblong hole in the length direction is formed in the end portion, opposite to the opening and closing connecting lever (61), of the opening and closing interlocking rod (62), and a ninth guide pin (611) fixed on the opening and closing connecting lever (61) is arranged in the ninth oblong hole.

9. A 24KV solid insulation switchgear interlocking mechanism according to claim 3, wherein the second ground connection interlocking rod (34) is in a plate structure, a tenth oblong hole along the length direction is formed in the second ground connection interlocking rod (34), a tenth guide pin (16) fixed on the support plate (1) is formed in the tenth oblong hole, an eleventh oblong hole perpendicular to the tenth oblong hole in the length direction is formed in an end portion of the second ground connection interlocking rod (34) opposite to the second ground connection crank arm (33), and an eleventh guide pin (331) fixed on the second ground connection crank arm (33) is formed in the eleventh oblong hole.

10. A 24KV solid insulation switchgear interlocking mechanism according to claim 3, characterized in that the door interlocking rod (8) is in a plate-shaped structure, the door interlocking rod (8) is provided with a twelfth oblong hole along the length direction, and a twelfth guide pin (17) fixed on the support plate (1) is arranged in the twelfth oblong hole.