CN211295749U

CN211295749U - Switch cabinet equipment

Info

Publication number: CN211295749U
Application number: CN201922032356.4U
Authority: CN
Inventors: 罗领军; 李会斌; 李尚坤; 张伟; 张坤
Original assignee: Xi'an Baoguang Intelligent Electric Co ltd
Current assignee: Xi'an Baoguang Intelligent Electric Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-18
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a switch cabinet device, wherein the cabinet body is provided with an interlocking valve, the interior of the cabinet body is provided with an interlocking crank arm linked with the interlocking valve, and the cabinet body is internally provided with a vertical stop lever linked with the interlocking crank arm; a closing coil linked with the breaker is also arranged in the cabinet body, a closing action connecting rod is movably arranged on the inner side of the closing coil, the moving track of the inner end part of the closing action connecting rod is intersected with the moving track of the bottom end of the vertical stop lever, and the intersected position of the two moving tracks is positioned between two limit positions of the inner end part of the closing action connecting rod on the moving track along the horizontal direction; the cabinet is internally provided with a horizontal stop lever linked with a large shaft of the circuit breaker, and the horizontal stop lever and the vertical stop lever at the uppermost limit position can be butted and matched with each other. The interlocking control effect of the breaker opening and closing and the handcart pushing and pulling process in the switch cabinet equipment is good, the operation process is simple, convenient and efficient, and the breaker can be effectively prevented from being mistakenly opened and closed.

Description

Switch cabinet equipment

Technical Field

The utility model relates to a power transmission and transformation system switchgear supporting component technical field, in particular to cubical switchboard equipment.

Background

At present, switch cabinet equipment on the market generally needs to have five-prevention functions, and one of the five-prevention functions is to prevent the mistaken opening and closing operation of a circuit breaker. Particularly, the circuit breaker can not be switched on in the pushing and pulling process of the circuit breaker handcart; when the circuit breaker is switched on, the handcart cannot be pushed in/pulled out, otherwise, safety accidents or large-scale power failure conditions are easily caused due to switching-on operation in the pushing and pulling-out process of the handcart, and adverse effects are caused on stable and reliable operation of related power transmission and transformation circuits.

Among the present specific structure of cubical switchboard equipment, limited by its self subassembly structure, it is not ideal to prevent the maloperation effect to the interlocking between handcart push-and-pull process and circuit breaker divide-shut brake in-process, though can satisfy basic prevent the maloperation demand, the actual operation process is comparatively loaded down with trivial details, and operating efficiency is low, causes a great deal of adverse effect for the operation of relevant power transmission and transformation system equipment safety and stability.

Therefore, how to safely and efficiently implement the interlocking control of the switching-on and switching-off processes and the pushing and pulling processes of the handcart of the circuit breaker in the switch cabinet equipment so as to prevent the misoperation of the circuit breaker is an important technical problem which needs to be solved by technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cubical switchboard equipment, the circuit breaker divide-shut brake in this cubical switchboard equipment is better with the interlocking control effect of handcart push-and-pull process, and the operation process is simple and convenient high-efficient, can prevent effectively that the circuit breaker from taking place the mistake and dividing, the mistake closes the operation.

In order to solve the technical problem, the utility model provides a switch cabinet device, which comprises a cabinet body, wherein an interlocking valve is arranged on the cabinet body in an openable manner, an interlocking crank arm in linkage fit with the interlocking valve is arranged inside the cabinet body, and a vertical stop lever in linkage fit with the interlocking crank arm is arranged in the cabinet body in a reciprocating manner along the vertical direction;

a closing coil in linkage fit with the circuit breaker is further arranged inside the cabinet body, a closing action connecting rod is arranged on the inner side of the closing coil in a reciprocating manner along the horizontal direction, the moving track of the inner end part of the closing action connecting rod is intersected with the moving track of the bottom end of the vertical stop lever, and the intersection position of the two moving tracks is located between two limit positions of the inner end part of the closing action connecting rod on the moving track of the closing action connecting rod along the horizontal direction;

the cabinet is internally provided with a horizontal stop lever linked with a large shaft of the circuit breaker along the horizontal direction in a reciprocating manner, and the horizontal stop lever is matched with the vertical stop lever at the uppermost limit position in a butting manner.

Preferably, a support plate matched with the horizontal stop lever in an abutting mode is arranged in the middle of the vertical stop lever in a protruding mode along the horizontal direction.

Preferably, the horizontal blocking rod comprises an inner transverse section and an outer transverse section which extend along the horizontal direction and are arranged in a staggered manner, the inner transverse section is located above the outer transverse section along the vertical direction, the inner end portion of the horizontal blocking rod is located at the inner end of the inner transverse section, the outer end of the horizontal blocking rod is not located at the outer end of the outer transverse section, and the outer end of the inner transverse section is connected with the inner end of the outer transverse section through a longitudinal connecting section which extends along the vertical direction.

Preferably, the outer end part of the horizontal stop lever is positioned below the breaker large shaft, and the outer end part of the horizontal stop lever is hinged with a linkage crank arm which is coaxially fixed and linked with the breaker large shaft in a linkage manner.

Preferably, the top of linkage connecting lever has the trepanning with the coaxial suit of circuit breaker main shaft, along the circumference equipartition on the trepanning inner wall have a plurality of with the big off-axial wall joint of circuit breaker inlay the draw-in groove of dress adaptation.

Preferably, a sliding pin is fixedly arranged in the cabinet body, a guide hole which is matched with the sliding pin in a sleeved mode and can slide relatively is formed in the middle of the closing action connecting rod, and the length direction of the guide hole is consistent with the movement direction of the closing action connecting rod.

Preferably, a longitudinal connecting rod is hinged between the interlocking crank arm and the vertical stop lever.

Preferably, the interlocking crank arm is rotatably disposed in the cabinet body in a fixed axis manner, and the longitudinal link is hinged to an outer edge portion of the interlocking crank arm.

In contrast to the above background art, in the operation and use process of the switch cabinet equipment provided by the present invention, when the handcart needs to be pushed in and pulled out, the interlocking valve is opened by the operator so as to insert the mating pieces such as the push-pull action handle, and the interlocking valve drives the interlocking connecting lever to act to further drive the vertical stop lever to move downwards to the lowest limit position, at this time, the closing action connecting rod cannot move inwards due to the blocking effect of the vertical stop lever, that is, if the operator tries to drive the closing action connecting rod to move inwards along the horizontal direction by pressing the closing coil in the handcart pushing and pulling process to realize closing, the inner end of the closing action connecting rod abuts against the vertical stop lever to make the closing action connecting rod cannot move inwards, so that the closing action cannot be implemented, and further it is ensured that the circuit breaker cannot be closed in the handcart pushing and pulling out process, so as to avoid the misoperation of the circuit breaker; when the circuit breaker is in a closing state, the circuit breaker main shaft drives the horizontal stop lever to move inwards to the innermost limit position along the horizontal direction, at the moment, the vertical stop lever cannot move downwards due to the blocking effect of the horizontal stop lever, namely, if a worker tries to insert the matched parts such as the push-pull action handle and the like to realize the pushing and pulling operation of the handcart by opening the interlocking valve in the closing state of the circuit breaker, the bottom end of the vertical stop lever cannot move downwards due to the fact that the bottom end of the vertical stop lever is abutted to the horizontal stop lever, the linkage mechanism of the interlocking connecting lever and the interlocking valve cannot move, the interlocking valve cannot be normally opened, the handcart cannot be pushed and pulled out to operate, and the personal safety of the worker and the stable continuous operation of a related power transmission and transformation circuit are guaranteed. The mechanism is simple and reliable, the operation process is simple and easy to implement, the operation efficiency is high, the interlocking control effect is good, and the stable and safe operation of the switch cabinet equipment and the related power transmission and transformation lines of the switch cabinet equipment can be fully guaranteed.

In another preferred embodiment of the present invention, the middle portion of the vertical stop lever is provided with a support plate in a protruding manner along the horizontal direction, and the support plate is adapted to the horizontal stop lever. When the horizontal stop lever moves to the innermost limit position, the support plate can be fully matched with the horizontal stop lever and reliably abutted against the horizontal stop lever, so that the limit effect of the horizontal stop lever on the vertical stop lever is ensured, the assembly space of the related fitting piece in the cabinet body is optimized, the occurrence of structural interference is avoided, and the efficient and reliable operation of each action assembly is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of a switchgear apparatus according to an embodiment of the present invention when a handcart is used for pushing and pulling;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic diagram of an internal structure of the circuit breaker of fig. 1 in a closing state;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view of the vertical stop of FIG. 1;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a schematic view of the horizontal bar of FIG. 1;

fig. 8 is a schematic structural view of the linkage crank arm in fig. 1.

The automatic interlocking device comprises an 11-interlocking valve, a 111-interlocking crank arm, a 112-longitudinal connecting rod, a 12-vertical stop lever, a 121-support plate, a 13-closing action connecting rod, a 131-closing coil, a 132-sliding pin, a 133-guide hole, a 14-horizontal stop lever, a 141-inner transverse section, a 142-outer transverse section, a 143-longitudinal connecting section, a 15-interlocking crank arm, a 151-trepan boring, a 152-clamping groove, a 21-cabinet body and a 22-breaker large shaft.

Detailed Description

The core of the utility model is to provide a cubical switchboard equipment, the circuit breaker divide-shut brake in this cubical switchboard equipment is better with the interlocking control effect of handcart push-and-pull process, and the operation process is simple and convenient high-efficient, can prevent effectively that the circuit breaker from taking place the mistake and dividing, the mistake closes the operation.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 8, fig. 1 is a schematic diagram illustrating an internal structure of a switchgear apparatus according to an embodiment of the present invention when a handcart is used for pushing and pulling; FIG. 2 is a side view of FIG. 1; fig. 3 is a schematic diagram of an internal structure of the circuit breaker of fig. 1 in a closing state; FIG. 4 is a side view of FIG. 3; FIG. 5 is a schematic view of the vertical stop of FIG. 1; FIG. 6 is a side view of FIG. 5; FIG. 7 is a schematic view of the horizontal bar of FIG. 1; fig. 8 is a schematic structural view of the linkage crank arm in fig. 1.

In a specific embodiment, the switch cabinet equipment provided by the utility model comprises a cabinet body 21, an interlocking valve 11 is arranged on the cabinet body 21 in an openable manner, an interlocking crank arm 111 which is in linkage fit with the interlocking valve 11 is arranged inside the cabinet body 21, and a vertical stop lever 12 which is in linkage fit with the interlocking crank arm 111 is arranged in the cabinet body 21 in a reciprocating manner along the vertical direction; a closing coil 131 in linkage fit with the circuit breaker is further arranged inside the cabinet 21, a closing action connecting rod 13 is arranged on the inner side of the closing coil 131 in a reciprocating manner along the horizontal direction, the moving track of the inner end part of the closing action connecting rod 13 is intersected with the moving track of the bottom end of the vertical stop rod 12, and the intersection position of the two moving tracks is located between two limit positions of the inner end part of the closing action connecting rod 13 on the moving track along the horizontal direction; a horizontal blocking rod 14 linked with a large shaft of the circuit breaker is arranged in the cabinet body 21 in a reciprocating manner along the horizontal direction, and the horizontal blocking rod 14 and the vertical blocking rod 12 at the uppermost limit position can be matched in a butting manner.

In the operation and use process, when the handcart needs to be pushed in and pulled out, a worker opens the interlocking valve 11 so as to insert matching pieces such as a push-pull action handle and the like, meanwhile, the interlocking valve 11 drives the interlocking crank arm 111 to act so as to further drive the vertical stop lever 12 to move downwards to the lowest limit position, at this time, the closing action connecting rod 13 cannot move inwards due to the blocking action of the vertical stop lever 12, that is, if the worker tries to drive the closing action link 13 to move inward in the horizontal direction by pressing the closing coil 131 during the pushing and pulling of the handcart to achieve closing, the inner end of the closing operation link 13 abuts against the vertical bar 12 to prevent the closing operation link 13 from moving further inward, thereby preventing the closing operation from being performed, further, the fact that the circuit breaker cannot be switched on in the pushing and pulling process of the handcart is guaranteed, and therefore the circuit breaker is prevented from being switched on by mistake; when the circuit breaker is in a closing state, the breaker main shaft 22 drives the horizontal stop lever 14 to move inwards to the innermost limit position along the horizontal direction, at this time, the vertical stop lever 12 cannot move downwards due to the blocking effect of the horizontal stop lever 14, that is, if a worker tries to insert a push-pull action handle and other matching pieces to realize the pushing and pulling operation of a handcart by opening the interlocking valve 11 in the closing state of the circuit breaker, the vertical stop lever 12 cannot move downwards due to the fact that the bottom end of the vertical stop lever 12 abuts against the horizontal stop lever 14, so that the interlocking connecting lever 111 and the linkage mechanism of the interlocking valve 11 cannot act, the interlocking valve 11 cannot be normally opened, and further, the handcart cannot be pushed and pulled out in the closing state of the circuit breaker, and the personal safety of the worker and the stable and continuous operation of a related power transmission and transformation line are guaranteed. The mechanism is simple and reliable, the operation process is simple and easy to implement, the operation efficiency is high, the interlocking control effect is good, and the stable and safe operation of the switch cabinet equipment and the related power transmission and transformation lines of the switch cabinet equipment can be fully guaranteed.

It should be noted that the directions "inward" and "inward" mentioned above refer to directions pointing from the outer edge of the cabinet 21 to the center of the interior of the cabinet 21, and correspondingly, the directions "outward" and "outward" refer to directions pointing from the center of the cabinet 21 to the outer edge of the cabinet 21. The relevant content of the rest of the text is also understood by referring to the explanation here without special description, and is not repeated.

Further, a support plate 121 adapted to abut against the horizontal bar 14 is provided in a protruding manner in the horizontal direction at the middle of the vertical bar 12. When the horizontal stop lever 14 moves to the innermost limit position, the support plate 121 can be fully adapted to and reliably abutted against the horizontal stop lever 14, so that the limit effect of the horizontal stop lever 14 on the vertical stop lever 12 is ensured, the assembly space of related fitting pieces inside the cabinet body 21 is optimized, the occurrence of structural interference is avoided, and the efficient and reliable operation of each action component is ensured.

Specifically, the horizontal blocking rod 14 includes an inner transverse section 141 and an outer transverse section 142 extending in the horizontal direction and arranged in a staggered manner, the inner transverse section 141 is located above the outer transverse section 142 in the vertical direction, an inner end portion of the horizontal blocking rod 14 is located at an inner end of the inner transverse section 141, an outer end of the horizontal blocking rod 14 is not located at an outer end of the outer transverse section 142, and the outer end of the inner transverse section 141 and the inner end of the outer transverse section 142 are connected through a longitudinal connecting section 143 extending in the vertical direction. The inner transverse section 141, the outer transverse section 142 and the longitudinal connecting section 143 of the horizontal blocking rod 14 are cooperatively matched, so that the horizontal blocking rod 14 forms a structure similar to a Z shape, thereby further avoiding structural interference possibly occurring between the horizontal blocking rod 14 and each related component, ensuring that each action component in the cabinet body 21 smoothly and efficiently works, and optimizing the structural layout and the assembly space utilization rate of the components in the cabinet body 21.

More specifically, the outer end of the horizontal bar 14 is located below the breaker large shaft 22, and the outer end of the horizontal bar 14 is hinged with a linkage crank arm 15 coaxially fixed and linked with the breaker large shaft 22. When the breaker is switched on, the breaker main shaft 22 drives the linkage connecting lever 15 to rotate at a certain angle in a fixed shaft mode, so that the horizontal stop lever 14 is driven to move inwards for a certain distance to ensure that the horizontal stop lever 14 moves in place to reliably abut and limit the vertical stop lever 12.

Furthermore, the top end of the linkage crank arm 15 is provided with a sleeve hole 151 coaxially sleeved with the breaker large shaft 22, and a plurality of clamping grooves 152 which are clamped, embedded and matched with the outer wall of the breaker large shaft 22 are uniformly distributed on the inner wall of the sleeve hole 151 along the circumferential direction. After the linkage crank arm 15 and the breaker large shaft 22 are sleeved in place through the sleeve hole 151, the clamping groove 152 and a related adaptive structure on the outer wall of the breaker large shaft 22 are utilized to be reliably embedded and clamped in place, and therefore the torque transmission between the breaker large shaft 22 and the linkage crank arm 15 is more stable and efficient.

On the other hand, a slide pin 132 is fixedly provided in the cabinet 21, a guide hole 133 fitted to the slide pin 132 is provided in the middle of the closing operation link 13 so as to be slidable relative thereto, and the longitudinal direction of the guide hole 133 coincides with the moving direction of the closing operation link 13. Through the sliding fit between the guide hole 133 and the sliding pin 132, the moving direction of the closing action link 13 can be reliably limited, the structural stability of the closing action link 13 and the closing coil 131 in the operation process is ensured, and the looseness or dislocation of related components in the moving process is avoided.

Furthermore, a longitudinal link 112 is articulated between the interlocking crank arm 111 and the vertical bar 12. The longitudinal connecting rod 112 is hinged with the interlocking connecting lever 111 and the vertical stop lever 12, so that a non-closed multi-connecting-rod mechanism is realized, the action freedom degree of a matching mechanism between the interlocking connecting lever 111 and the vertical stop lever 12 is further improved, and the risk of self-locking or blocking of the mechanism is reduced.

The interlocking crank arm 111 is provided in the cabinet 21 so as to be rotatable about a fixed axis, and the vertical link 112 is hinged to an outer edge portion of the interlocking crank arm 111. The fixed-axis rotating structure can further reduce the structural space required in the action process of the interlocking crank arm 111 so as to further optimize the assembly space inside the cabinet body 21 and the overall assembly structure of related components.

In summary, in the switch cabinet device provided in the present invention, during the operation and use process, when the handcart needs to be pushed in and pulled out, the operator opens the interlock valve to insert the mating pieces such as the push-pull action handle, and the interlock valve drives the interlock connecting lever to act to further drive the vertical stop lever to move downward to the lowest limit position, at this time, the closing action connecting rod cannot move inward due to the blocking effect of the vertical stop lever, that is, if the operator tries to drive the closing action connecting rod to move inward along the horizontal direction by pressing the closing coil during the handcart pushing and pulling process to realize closing, the inner end of the closing action connecting rod abuts against the vertical stop lever to make the closing action connecting rod cannot move inward further, so that the closing action cannot be implemented, and further it is ensured that the circuit breaker cannot be operated during the handcart pushing and pulling out process, so as to avoid the misoperation of the circuit breaker; when the circuit breaker is in a closing state, the circuit breaker main shaft drives the horizontal stop lever to move inwards to the innermost limit position along the horizontal direction, at the moment, the vertical stop lever cannot move downwards due to the blocking effect of the horizontal stop lever, namely, if a worker tries to insert the matched parts such as the push-pull action handle and the like to realize the pushing and pulling operation of the handcart by opening the interlocking valve in the closing state of the circuit breaker, the bottom end of the vertical stop lever cannot move downwards due to the fact that the bottom end of the vertical stop lever is abutted to the horizontal stop lever, the linkage mechanism of the interlocking connecting lever and the interlocking valve cannot move, the interlocking valve cannot be normally opened, the handcart cannot be pushed and pulled out to operate, and the personal safety of the worker and the stable continuous operation of a related power transmission and transformation circuit are guaranteed. The mechanism is simple and reliable, the operation process is simple and easy to implement, the operation efficiency is high, the interlocking control effect is good, and the stable and safe operation of the switch cabinet equipment and the related power transmission and transformation lines of the switch cabinet equipment can be fully guaranteed.

It is right above the utility model provides a cubical switchboard equipment has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A switchgear apparatus, characterized in that: the intelligent cabinet comprises a cabinet body, wherein an interlocking valve is arranged on the cabinet body in an openable and closable manner, an interlocking crank arm in linkage fit with the interlocking valve is arranged inside the cabinet body, and a vertical stop lever in linkage fit with the interlocking crank arm is arranged in the cabinet body in a reciprocating manner along the vertical direction;

2. The switchgear apparatus of claim 1, wherein: and a support plate matched with the horizontal stop lever in an abutting mode is arranged in the middle of the vertical stop lever in a protruding mode along the horizontal direction.

3. The switchgear apparatus as claimed in claim 2, characterized in that: the horizontal stop lever comprises an inner transverse section and an outer transverse section which extend in the horizontal direction and are arranged in a staggered mode, the inner transverse section is located above the outer transverse section in the vertical direction, the inner end portion of the horizontal stop lever is located at the inner end of the inner transverse section, the outer end of the horizontal stop lever is not located at the outer end of the outer transverse section, and the outer end of the inner transverse section is connected with the inner end of the outer transverse section through a longitudinal connecting section which extends in the vertical direction.

4. A switchgear apparatus as claimed in claim 3, characterized in that: the outer end part of the horizontal stop lever is positioned below the breaker large shaft, and the outer end part of the horizontal stop lever is hinged with a linkage crank arm which is coaxially fixed and linked with the breaker large shaft in a linkage manner.

5. The switchgear apparatus as claimed in claim 4, characterized in that: the top of linkage connecting lever has the trepanning with the coaxial suit of circuit breaker main shaft, it has a plurality of draw-in grooves of inlaying the dress adaptation with circuit breaker main shaft outer wall joint to follow the circumference equipartition on the trepanning inner wall.

6. The switchgear apparatus of claim 1, wherein: the switch-on mechanism is characterized in that a sliding pin is fixedly arranged in the cabinet body, a guide hole which is matched with the sliding pin in a sleeved mode in a relatively sliding mode is formed in the middle of the switch-on action connecting rod, and the length direction of the guide hole is consistent with the movement direction of the switch-on action connecting rod.

7. The switchgear apparatus of claim 1, wherein: and a longitudinal connecting rod is hinged between the interlocking crank arm and the vertical stop lever.

8. The switchgear apparatus of claim 7, wherein: the interlocking crank arm is rotatably arranged in the cabinet body in a fixed-axis mode, and the longitudinal connecting rod is hinged to the outer edge portion of the interlocking crank arm.