CN213124252U - Operation interlocking device for grounding switch of cable chamber of medium-voltage switch cabinet - Google Patents
Operation interlocking device for grounding switch of cable chamber of medium-voltage switch cabinet Download PDFInfo
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- CN213124252U CN213124252U CN202022292635.7U CN202022292635U CN213124252U CN 213124252 U CN213124252 U CN 213124252U CN 202022292635 U CN202022292635 U CN 202022292635U CN 213124252 U CN213124252 U CN 213124252U
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Abstract
The utility model relates to a medium voltage switch cabinet cable chamber earthing switch operation interlock, the back of the bracket is fixed on the cabinet body of the medium voltage switch cabinet, the push plate is fixed on the cabinet door of the medium voltage switch cabinet, the baffle block is connected in the front of the bracket through a fixed rod I, the baffle block can move left and right along with the fixed rod I, and the baffle block is connected with the fixed frame through a connecting rod passing through the upper end plate of the bracket; the upper end of the fixed frame is fixedly connected with an interlocking plate through a fixed pin, and the interlocking plate is in positioning guide connection with a positioning pin fixed on a cabinet body of the medium-voltage switch cabinet through a positioning groove on the interlocking plate; a sliding plate is connected between the middle plate and the bottom plate of the bracket through a fixed rod II, and a pressure spring is sleeved on the fixed rod II positioned between the sliding plate and the middle plate of the bracket; the bottom of the sliding plate is connected with the bracket in a positioning and sliding way; when closing medium voltage switchgear cabinet door, the push pedal promotes the dog, pushes down the slide simultaneously, and the dog drives the interlocking plate slip and blocks the earthing switch connecting rod, can prevent the maloperation earthing switch, avoids the maloperation to bring risk and potential safety hazard, ensures personal safety.
Description
Technical Field
The utility model relates to a medium voltage switchgear of marine and land usefulness, especially a medium voltage switchgear cable chamber earthing switch operation interlock.
Background
With the continuous expansion of the application range of the medium-voltage switch cabinet, the application field is continuously increased, and the requirement on the safety of the medium-voltage switch cabinet is higher and higher. Experience shows that a large number of misoperation accidents occurring on the medium-voltage switch cabinet are avoided, but the interlocking function is incomplete, so that a large number of casualties and equipment damages are not avoided. When the medium-voltage switch cabinet is used as a power distribution device, serious consequences can be caused by improper operation or unreliable interlocking of the grounding switch. In order to make the interlocking of medium voltage switchgear more reliable, the utility model discloses a can guarantee to stop when maintaining the maintenance and repair and lead to the electrified condition of equipment to take place because of the maloperation to eliminate the accident hidden danger.
The interlocking of the existing medium-voltage switch cabinet grounding switch generally prevents misoperation through a positioning pin in a grounding switch operating shaft, and the positioning pin in the grounding switch operating shaft is easily damaged or deformed if the operation is improper in the operation process, so that the interlocking function is damaged, and the interlocking function cannot be achieved. In order to avoid unnecessary personal injuries and equipment damage, an interlocking device for operating a cable chamber grounding switch of a medium-voltage switch cabinet needs to be provided.
Disclosure of Invention
The utility model provides a medium voltage switch cabinet cable chamber earthing switch operation interlock, the device can effectively avoid the maloperation at the maintenance in-process to can effectively guarantee the safety of the person and equipment, improve equipment's security, reliability.
In order to achieve the above purpose, the technical scheme of the utility model is that: an interlocking device for operating a grounding switch of a cable chamber of a medium-voltage switch cabinet comprises an interlocking plate, a fixing frame, a stop block, a support and a push plate, wherein the back surface of the support is fixed on a cabinet body of the medium-voltage switch cabinet, the push plate is fixed on a cabinet door of the medium-voltage switch cabinet, the front surface of the support is connected with the stop block through a transversely arranged fixing rod I, a spring is sleeved on the fixing rod I between a rear end plate of the support and the stop block, the stop block can move left and right along with the fixing rod I, and the stop block is connected with the fixing frame through a transversely arranged connecting rod; the fixed mount can move left and right along with the connecting rod; the upper end of the fixing frame is fixedly connected with an interlocking plate through a fixing pin, and the interlocking plate is in positioning guide connection with a positioning pin fixed on a cabinet body of the medium-voltage switch cabinet through a positioning groove on the interlocking plate, so that the interlocking plate can slide on the positioning pin through the positioning groove; a sliding plate is connected between the middle plate and the bottom plate of the bracket through a fixed rod II, and a pressure spring is sleeved on the fixed rod II positioned between the sliding plate and the middle plate of the bracket; the bottom of the sliding plate is connected with the bracket in a positioning and sliding manner and can slide up and down along with a pressure spring on the fixing rod II; when closing medium voltage switchgear cabinet door, the push pedal promotes the dog, pushes down the slide simultaneously, the dog drives the interlocking plate and slides and blocks the earthing switch connecting rod, can prevent the maloperation earthing switch, avoids the maloperation to bring risk and potential safety hazard, ensures personal safety.
Furthermore, the middle area and the top of the stop block are respectively fixed with one end of the fixing rod I and one end of the connecting rod through bolts.
Further, the fixing frame is positioned on the connecting rod through a clamping spring.
Further, the top end of the fixing rod II is fixed on the bracket through a bolt; and the fixing rod II penetrates through the sliding plate, and the compression spring on the fixing rod II is positioned through the clamping spring and the sliding plate.
Furthermore, the top of the sliding plate is provided with an oblique angle, the bottom of the fixing frame is provided with a convex block, and the oblique angle at the top of the sliding plate is used for stopping the fixing frame and facilitating the sliding of the fixing frame.
Furthermore, a sliding opening is formed in the sliding plate, so that the push plate can conveniently slide in;
furthermore, one end of the connecting rod, one end of the fixing rod I and one end of the fixing rod II are fastened by bolts, and the other end of the fixing rod II is grooved so as to be fastened conveniently.
The utility model has the advantages that:
(1) the interlocking device of the utility model has good properties of preventing misoperation and reliability;
(2) the utility model discloses a mechanical interlocking's mode can effectively avoid the maloperation to improve equipment's fail safe nature, reduce the accident risk.
(3) The utility model discloses an interlock simple structure, convenient operation, safe and reliable can prevent the maloperation through the interlock design, have improved equipment and personal safety.
(4) The utility model discloses a mechanized design, programmed flow, safe and reliable avoids bringing equipment damage and maloperation because of misoperation, stops the potential operation hazard, reaches and reduces the accident risk, improves the purpose of reliability.
Drawings
FIG. 1 is a schematic perspective view of a cable chamber earthing switch operation interlocking device of a medium voltage switchgear;
FIG. 2 is a front view of a cable chamber earthing switch operation interlock arrangement of the medium voltage switchgear;
FIG. 3 is a rear view of FIG. 2;
fig. 4 is a view from direction K of fig. 3.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, an interlocking device for operating a grounding switch in a cable chamber of a medium voltage switch cabinet comprises an interlocking plate 1, a positioning pin 2, a fixing pin 3, a fixing frame 4, a connecting rod 5, a stop block 6, a fixing rod i7, a support 8, a fixing rod ii9, a sliding plate 10, a pushing plate 11 and a grounding switch connecting rod 12.
The bracket 8 is fixed on the cabinet body of the medium-voltage switch cabinet and is mainly used for positioning the fixed rod I7 and the connecting rod 5; the middle area and the top of the stop block 6 are respectively fixed with one end of the fixing rod I7 and one end of the connecting rod 5 through bolts; the fixed frame 4 is positioned on the connecting rod 5 through a clamp spring and can move together with the connecting rod 5; the interlocking plate 1 is fixed on a fixed support 4 through a fixed pin 3 and is positioned through a positioning pin 2, and the positioning pin 2 is fixed on a cabinet body of the medium-voltage switch cabinet; the positioning groove on the interlocking plate 1 slides on the positioning pin 2; the stop 6 drives the fixing bracket 4 and the interlocking plate 1 on the connecting rod 5 to move back and forth through a pressure spring on the fixing rod I7. The top end of the fixing rod II9 is fixed on the bracket 8 by a bolt; the fixing rod II9 penetrates through the sliding plate 10, and the pressure spring on the fixing rod II9 is positioned through the snap spring and the sliding plate 10; the top of the sliding plate 10 is positioned by a fixing rod II9, and the bottom of the sliding plate is positioned by a bracket 8 and slides up and down along with a pressure spring on a fixing rod II 9; the top of the sliding plate 10 is provided with an oblique angle, the bottom of the fixing frame 4 is provided with a convex block, and the oblique angle at the top of the sliding plate 10 is used for stopping the fixing frame 4 and facilitating the sliding of the fixing frame 4; the interlocking plate 1 and the positioning pin 2 move in the limiting groove; the sliding plate 10 is provided with a sliding opening, so that the push plate 11 can slide in conveniently; one end of the connecting rod 5, one end of the fixing rod I7 and one end of the fixing rod II9 are fastened by bolts, and the other end of the fixing rod II9 is grooved so as to be fastened conveniently. The push plate 11 is fixed on a cabinet door of the medium-pressure switch cabinet, the door closing push plate 11 pushes the stop block 6 and simultaneously presses the sliding plate 10 to drive the internal mechanical linkage of the interlocking device; interlocking board 1 slides and blocks earthing switch connecting rod 12, prevents the maloperation earthing switch, avoids the maloperation to bring risk and potential safety hazard, has ensured personal safety.
The utility model discloses a push pedal 11 on the cable chamber door promotes inside mechanical interlocking, drives interlocking board 1 and keeps off earthing switch connecting rod 12 in order to realize that cable chamber cabinet door closes the chain requirement of operation earthing switch.
The utility model discloses a medium voltage switch cabinet cable chamber earthing switch operation interlock, mainly used overhauls and ensures the safety of the person and equipment in the maintenance process. The utility model discloses/utility model patent adopts mechanical interlocking's design, and programming operation mode interlocks each other, prevents the maloperation, increases the life of equipment, must operate according to the design flow in operation process, has ensured the reliability of interlocking and the security of equipment.
The specific implementation scheme of the invention is as follows:
the utility model discloses install earthing switch interlock on the medium voltage switchgear cabinet body and cable chamber door.
When medium voltage switchgear cable chamber door was closed, push pedal 11 on the cabinet door triggered slide 10, dog 6 etc. in the interlock and drove interlocking motion, touched and made interlocking plate 1 block earthing switch 12 connecting rod operation to reach and do not close cable chamber cabinet door and can not operate earthing switch and prevent not closing cabinet door operation earthing switch and reach the purpose that prevents to miss the electrified compartment of income, bring life safety guarantee for operating personnel. In addition, through this kind of form, can effectually avoid the trouble on the machinery, thereby avoid the maloperation to lead to equipment to damage or bring life safety. Therefore, the interlocking device is safe and reliable so as to ensure the safety of equipment and personnel.
The specific implementation process is as follows:
(1) and (3) putting into an interlocking process:
firstly, closing a cable chamber cabinet door of a medium-voltage switch cabinet, and sliding into an interlocking device bracket 8 arranged in a cabinet body of the medium-voltage switch cabinet through a cable chamber cabinet door push plate 11 to force the cable chamber cabinet door to push a sliding plate 10 and a stop block 6;
secondly, by pushing the slide plate 10 and the stopper 6; the sliding plate 10 is forced to move downwards and the stop block 6 is pushed outwards, thrust is formed by a pressure spring on the fixing rod I7 during pushing, and meanwhile, the pressure spring on the fixing rod II9 for fixing the sliding plate 10 also forms thrust for the sliding plate 10 to force the sliding plate to move downwards; under the action of the thrust, the connecting rod 5 fixed on the stop block 6 drives the fixed frame 4 fixed on the stop block to move together.
Finally, the interlocking plate 1 fixed by the fixing pin 3 is driven by the fixing frame 4 to move in the positioning range of the positioning pin 2, so that the interlocking plate 1 blocks the grounding switch connecting rod 12, and the interlocking purpose is achieved.
(2) And (4) exiting the interlocking process:
firstly, opening a cable chamber cabinet door of a medium-voltage switch cabinet, and withdrawing a push plate 11 arranged on the cable chamber cabinet door from an interlocking device bracket 8 arranged in a cabinet body of the medium-voltage switch cabinet to force the interlocking device bracket to push a sliding plate 10 and a stop block 6;
secondly, the sliding plate 10 and the stop block 6 are withdrawn; the sliding plate 10 is forced to move upwards and the stop block 6 is pushed inwards, and when the sliding plate is pushed, the pushing force is formed by restoring a pressure spring on the fixing rod I7, and the sliding plate is restored to the initial state; under the action of thrust, the connecting rod 5 fixed on the stop block 6 drives the fixed frame 4 fixed on the stop block to move together and exit to an initial state together.
Finally, the interlocking plate 1 fixed by the fixing pin 3 is driven by the fixing frame 4 to move in the positioning range of the positioning pin 2, so that the interlocking plate 1 is withdrawn from blocking the grounding switch connecting rod 12, and the purpose of releasing interlocking is achieved.
Claims (7)
1. The utility model provides a medium voltage switch cabinet cable chamber earthing switch operation interlock, includes interlocking board, mount, dog, support, push pedal, its characterized in that: the back surface of the support is fixed on a cabinet body of the medium-pressure switch cabinet, the push plate is fixed on a cabinet door of the medium-pressure switch cabinet, a stop block is connected in the front surface of the support through a transversely arranged fixed rod I, a spring is sleeved on the fixed rod I between a rear end plate of the support and the stop block, the stop block can move left and right along with the fixed rod I, and the stop block is connected with the fixed frame through a connecting rod which penetrates through an upper end plate of the support and is transversely arranged; the fixed mount can move left and right along with the connecting rod; the upper end of the fixing frame is fixedly connected with an interlocking plate through a fixing pin, and the interlocking plate is in positioning guide connection with a positioning pin fixed on a cabinet body of the medium-voltage switch cabinet through a positioning groove on the interlocking plate, so that the interlocking plate can slide on the positioning pin through the positioning groove; a sliding plate is connected between the middle plate and the bottom plate of the bracket through a fixed rod II, and a pressure spring is sleeved on the fixed rod II positioned between the sliding plate and the middle plate of the bracket; the bottom of the sliding plate is connected with the bracket in a positioning and sliding manner and can slide up and down along with a pressure spring on the fixing rod II; when closing medium voltage switchgear cabinet door, the push pedal promotes the dog, pushes down the slide simultaneously, the dog drives the interlocking plate and slides and blocks the earthing switch connecting rod, can prevent the maloperation earthing switch, avoids the maloperation to bring risk and potential safety hazard, ensures personal safety.
2. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: the middle area and the top of the stop block are respectively fixed with one end of the fixing rod I and one end of the connecting rod through bolts.
3. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: the fixing frame is positioned on the connecting rod through a clamp spring.
4. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: the top end of the fixed rod II is fixed on the bracket by a bolt; and the fixing rod II penetrates through the sliding plate, and the compression spring on the fixing rod II is positioned through the clamping spring and the sliding plate.
5. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: the slide top is equipped with the oblique angle, the mount bottom is equipped with the lug, the oblique angle at slide top is used for ending the position mount and is convenient for the mount to slide in.
6. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: the sliding plate is provided with a sliding opening, so that the push plate can slide in conveniently.
7. The medium voltage switchgear cable compartment earthing switch operation interlock device according to claim 1, characterized in that: one ends of the connecting rod, the fixing rod I and the fixing rod II are fastened by bolts, and the other ends of the connecting rod, the fixing rod I and the fixing rod II are grooved so as to be fastened conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022292635.7U CN213124252U (en) | 2020-10-15 | 2020-10-15 | Operation interlocking device for grounding switch of cable chamber of medium-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022292635.7U CN213124252U (en) | 2020-10-15 | 2020-10-15 | Operation interlocking device for grounding switch of cable chamber of medium-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213124252U true CN213124252U (en) | 2021-05-04 |
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ID=75666679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022292635.7U Active CN213124252U (en) | 2020-10-15 | 2020-10-15 | Operation interlocking device for grounding switch of cable chamber of medium-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213124252U (en) |
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2020
- 2020-10-15 CN CN202022292635.7U patent/CN213124252U/en active Active
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