CN211182079U - Electric shock prevention vacuum switch isolation lock catch and poking sheet type pressing plate temporary locking accessory - Google Patents
Electric shock prevention vacuum switch isolation lock catch and poking sheet type pressing plate temporary locking accessory Download PDFInfo
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- CN211182079U CN211182079U CN201922276468.4U CN201922276468U CN211182079U CN 211182079 U CN211182079 U CN 211182079U CN 201922276468 U CN201922276468 U CN 201922276468U CN 211182079 U CN211182079 U CN 211182079U
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Abstract
The utility model discloses an electric shock prevention vacuum switch isolation lock catch and temporary shutting annex of plectrum formula clamp plate belongs to the power system and prevents the maloperation field. The lock catch comprises a breaker and a valve arranged on the breaker body in an openable manner, wherein a guide rail and a valve moving device are further arranged in the breaker body, the guide rail extends from the breaker body to the valve, and the lock catch further comprises a lock which is used for fixing the valve driving device relative to the breaker body to prevent the valve from being opened when the lock catch is overhauled. The locking accessory comprises two semi-cylindrical shells which can rotate mutually, wherein the rotation center is arranged on one side of each semi-cylindrical shell, the other side of each semi-cylindrical shell is provided with a padlock ear, and the middle part of each padlock ear is provided with a lock hole; the top of the semi-cylindrical shell is closed, the bottom of the semi-cylindrical shell is open, and an opening sheet is arranged in the middle of the semi-cylindrical shell and can be clamped on the stud. The utility model discloses can effectively avoid the maintainer mistake to touch valve drive arrangement and the electrified exposed condition of contact that leads to takes place, protection maintainer's safety.
Description
Technical Field
The utility model relates to an electric shock prevention vacuum switch isolation lock catch and temporary shutting annex of plectrum formula clamp plate belongs to the power system and prevents the maloperation field.
Background
When transformer overhauls, the staff need enter into and lock in the circuit breaker body and realize the shutting to the circuit breaker, then in case the valve connecting rod jam between valve drive arrangement and the valve, the valve can't in time be closed, easily takes place the electric shock accident because of safe distance is not enough when the maintenance personal keeps apart shutting operation in the circuit breaker body.
At present, the following problems commonly exist in transformer substation maintenance operation:
firstly, the locking management is not comprehensive and the isolation means is incomplete. The energy can not be prevented from being conveyed to the overhaul area by mistake, and the personal safety of the overhaul personnel in the operation area can not be guaranteed; the maintenance personnel maloperation and the operation equipment are touched by mistake during the maintenance period, so that potential safety hazards exist.
Secondly, the authority management is not guaranteed, and safety measures are still movable. During the maintenance work, the operation authority of the equipment is grasped by operators, and particularly when multiple teams and multiple tasks work simultaneously, the potential danger of mistakenly transmitting power to the maintenance work surface exists.
Thirdly, hidden dangers exist in the lack of technical prevention measures and equipment operation of the transmission test. During the equipment maintenance, the equipment to be maintained needs to be subjected to a separation/combination test, and the current technical measures cannot prevent the occurrence of wrong interval misoperation accidents.
The operation of the disconnecting link of the transformer substation is divided into primary equipment and secondary equipment, and the switching of the protective pressing plate is a main project of the operation of the secondary equipment. By putting in and taking out the secondary pressing plate, the protection can be put into operation or quit from maintenance, so that the protection can act correctly when the primary equipment has a fault by matching with different primary equipment operation modes; when the protection device has a fault, the maintenance can be timely quitted, and the protection misoperation and the failure operation are avoided.
The sheet type pressing plate is a common type in a secondary pressing plate, and mainly comprises two binding posts and a shifting sheet, wherein a metal stud is arranged inside each binding post, the top of each binding post is a knob, one side of the shifting sheet is rotatably fixed on one binding post, the other side of the shifting sheet is provided with an opening, the shifting sheet can be clamped on the stud on the other binding post, and then the two knobs are screwed down to compress the shifting sheet, so that a circuit connected with the two binding posts is switched on.
When the pull sheet is overhauled, the pull sheet needs to be pulled away to disconnect the pressing plate, the insulating adhesive tape is wound on the binding post on one side, the operation is complex, the defects of easy falling, high cost and incapability of being repeatedly used exist, only a prompt effect can be realized, and forced locking of the pressing plate cannot be realized. The situation that the accident is artificially expanded due to the misputting of the secondary pressing plate of the protection device of the primary equipment occurs sometimes.
Therefore, how to improve the temporary locking device of the pull tab type pressing plate to protect the maintainers and eliminate the potential safety hazard becomes an important technical problem to be solved urgently by the technicians in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an electric shock prevention vacuum switch keeps apart hasp and the interim shutting annex of plectrum formula clamp plate, to current safety measure complex operation, there is easy droing, and is with high costs, can not used repeatedly, can not realize shortcoming such as compulsory shutting, use when needing to overhaul, the cooperation padlock locks, the interim shutting annex can't take off after the shutting, simultaneously can't drop into the guard inspection operation regional interior maintainer of plectrum formula clamp plate furthest, maintenance equipment, and operation equipment's safety, to improving the safety in production level, reduce the emergence of incident, very big social has.
The utility model aims at realizing through the following technical scheme:
the electric shock preventing vacuum switch isolation lock catch comprises a circuit breaker and a valve openably arranged on a circuit breaker body, wherein a guide rail and a valve moving device are also arranged in the circuit breaker body, and the guide rail extends from the circuit breaker body to the valve; the valve driving device is fixed relative to the circuit breaker body to prevent the valve from being opened when the valve driving device is overhauled;
the lock comprises a first locking plate, a second locking plate, a locking bar and a lock head; the inner frame of the first locking plate and the inner frame of the second locking plate are both semicircular, the circular inner diameter formed by the first locking plate and the second locking plate after being closed is larger than the inner diameter of the breaker body and smaller than the outer diameter of the breaker body, and one end of the first locking plate is hinged with one end of the second locking plate; the other end of the first locking plate and the other end of the second locking plate are both provided with a locking hole, and the locking device further comprises an isolation lock matched with the locking hole so as to realize the opening and closing of the first locking plate and the second locking plate;
two ends of the locking bar respectively penetrate through the first through hole in the guide rail and the second through hole in the valve driving device, and the two ends of the locking bar are locked by the lock head to organize the valve driving device to open the valve.
Further, the first through hole is formed in one end, close to the circuit breaker body, of the guide rail; the second through hole is formed in one end, close to the guide rail, of the valve driving device;
the one end of first locking plate with the one end of second locking plate all is provided with the rivet hole, still include with rivet hole matched with rivet.
Furthermore, all be provided with the protection film of abrasionproof decreases on first locking plate and the second locking plate.
Further, first locking plate and second locking plate are stainless steel locking plate.
The poking piece type pressure plate temporary locking accessory comprises two semi-cylindrical shells capable of rotating mutually, wherein the rotating centers of the two semi-cylindrical shells capable of rotating mutually are arranged on one side of the semi-cylindrical shells, a padlock lug is arranged on the other side of the semi-cylindrical shells, and a lock hole is formed in the middle of the padlock lug; the top parts of the two semi-cylindrical shells which can rotate mutually are closed, the bottoms of the two semi-cylindrical shells are open, an opening sheet is arranged in the middle of the two semi-cylindrical shells, and the opening sheet can be clamped on the stud; and after the two semi-cylindrical shells are closed, the lock holes are aligned and used for hanging a padlock for locking.
The utility model has the advantages that:
(1) the utility model discloses in the application, even if not discover and push the circuit breaker, also can prevent the circuit breaker to continue to get into because valve drive arrangement is locked to the protection valve, even the valve goes wrong, owing to the distance is far away also the incident that is difficult for appearing in the shutting in-process of keeping apart, and through shutting valve drive arrangement, can effectively avoid the maintainer mistake to touch valve drive arrangement and the electrified exposed condition of contact that leads to takes place, protection maintainer's safety.
(2) The utility model can implement forced locking to the withdrawing-piece type pressing plate, so that the withdrawing-piece type pressing plate can not be put into use; the operation is convenient, the installation is not required in advance, tools are not required in the installation, the mounting is carried out at any time, and the repeated service life is long; the engineering plastic made of insulating materials is adopted, so that the pressing plate is prevented from being conducted due to mistaken collision.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the isolation lock catch structure of the electric shock prevention vacuum switch of the present invention;
FIG. 2 is a schematic view of the temporary locking attachment of the middle-paddle type pressing plate of the present invention; (a) is in an open state, (b) is in a closed state;
FIG. 3 is a schematic view of the temporary locking attachment of the middle paddle type pressing plate of the present invention being locked on the terminal bolt; (a) is in an open state, (b) is in a closed state;
reference numerals: 1-guide rail, 1 a-first through hole, 2-lock, 201-lock head, 202-locking bar, 3-valve driving device, 3 a-second through hole, 11-first locking plate, 12-second locking plate, 13-locking hole, 14-rivet hole, 15-mutual rotatable semi-cylindrical shell, 16-rotation center, 17-padlock lug, 18-opening sheet, 19-locking hole, 20-plectrum, 21-knob, 22-binding post and 23-stud.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1, the electric shock preventing vacuum switch isolation lock catch comprises a circuit breaker and a valve openably arranged on a circuit breaker body, wherein a guide rail 1 and a valve moving device are further arranged in the circuit breaker body, the guide rail 1 extends from the circuit breaker body to the valve, and the electric shock preventing vacuum switch isolation lock catch further comprises a lock 2, and the lock 2 is used for fixing the valve driving device 3 relative to the circuit breaker body to prevent the valve from being opened during maintenance;
the lock 2 comprises a first locking plate 11, a second locking plate 12, a locking bar 202 and a lock head 201; the inner frame of the first locking plate 11 and the inner frame of the second locking plate 12 are both semicircular, the circular inner diameter formed by the first locking plate 11 and the second locking plate 12 after being closed is larger than the inner diameter of the breaker body and smaller than the outer diameter of the breaker body, and one end of the first locking plate 11 is hinged with one end of the second locking plate 12; the other end of the first locking plate 11 and the other end of the second locking plate 12 are both provided with a locking hole 13, and the lock further comprises an isolation lock matched with the locking hole 13 so as to realize the opening and closing of the first locking plate 11 and the second locking plate 12;
two ends of the locking bar 202 respectively penetrate through the first through hole 1a on the guide rail 1 and the second through hole 3a on the shutter driving device 3, and two ends of the locking bar 202 are locked by the lock head 201 to organize the shutter driving device 3 to open the shutter.
The first through hole 1a is arranged at one end of the guide rail 1 close to the circuit breaker body; the second through hole 3a is arranged at one end of the valve driving device 3 close to the guide rail 1;
And protective films for preventing abrasion are arranged on the first locking piece 11 and the second locking piece 12.
The first locking piece 11 and the second locking piece 12 are both stainless steel locking pieces.
The diameter of the locking hole 13 may be set to 6 mm in consideration of the actual size of the isolation lock, as well as the size of the isolation lock catch.
FIG. 2 is a schematic view of the temporary locking attachment of the middle-paddle type pressing plate of the present invention; (a) is in an open state, (b) is in a closed state; FIG. 3 is a schematic view of the temporary locking attachment of the middle paddle type pressing plate of the present invention being locked on the terminal bolt; (a) is in an open state, (b) is in a closed state; the temporary locking accessory of the plectrum type pressing plate is characterized in that two semi-cylindrical shells 15 capable of rotating mutually are designed, an opening sheet 18 is arranged on a stud 23 of the middle part corresponding to a binding post 22, the two half-cylindrical shells can be clamped on the stud 23, and the binding post 22 without the plectrum side and a knob 21 of the binding post are coated, so that the plectrum 20 cannot be closed. Meanwhile, the two semi-cylindrical shells are respectively provided with a padlock lug 17 with a lock hole 19, and the semi-cylindrical shell cannot be opened after the padlock is hung. The terminal that does not take plectrum one side is insulated and is kept apart after two semicylinder casings are closed, and the opposite side remains to expose and tests the electricity when being used for overhauing.
The temporary locking accessory of the pull sheet type pressure plate comprises two semi-cylindrical shells 15 which can rotate mutually, the top of each semi-cylindrical shell is closed, the bottom of each semi-cylindrical shell is open, an opening sheet 18 is arranged in the middle of each semi-cylindrical shell, and the opening sheet 18 can be clamped on a stud 23. The rotation center 16 is arranged at one side of the semi-cylindrical shell, the other side is provided with a padlock lug 17, and the middle part of the padlock lug is provided with a lock hole 19. After the two semi-cylindrical shells are closed, the lock holes are aligned, and a padlock can be hung for locking.
The use method of the temporary locking accessory of the pull sheet type pressure plate comprises the following steps: after the plectrum type pressing plate plectrum is withdrawn, the slice of the opening of the temporary locking accessory is clamped into the stud between the knob and the main body on the binding post without the plectrum on one side, the semi-cylindrical shell on the other side is closed, the lock holes are aligned, and a padlock is hung for locking. At the moment, the temporary locking accessory is fixed on the wiring terminal, and meanwhile, the wiring terminal on one side is covered by the two semi-cylindrical shells to realize insulation and isolation.
Combine the utility model discloses, can carry out following improvement:
with the graphical design theory, carry out the research to keeping apart the shutting system, the mode of drawing die storehouse integration is adopted in the dangerous source modeling management, and the system shows dangerous source and isolation equipment information with the graphic interface mode, if: equipment, the state before and after the equipment is isolated, the associated information of the isolated equipment and the work ticket and the like.
In the isolation locking management system, a special key is needed for operation information and execution results between management software and the intelligent lock, and a computer key is adopted to realize information recording of the isolation management system and operation of a field lock.
The authorization authority card mode is adopted to carry out distribution management and control on the isolated and locked dangerous source authority, the authority cards distributed with the authority are respectively kept by different personnel, and the isolated equipment which is not completely handed back by the authority cards does not allow any person to be authorized to operate.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (4)
1. Protection against electric shock vacuum switch keeps apart hasp, its characterized in that: the circuit breaker comprises a circuit breaker and a valve arranged on a circuit breaker body in an openable manner, wherein a guide rail and a valve moving device are also arranged in the circuit breaker body, and the guide rail extends from the circuit breaker body to the valve; the valve driving device is fixed relative to the circuit breaker body to prevent the valve from being opened when the valve driving device is overhauled;
the lock comprises a first locking plate, a second locking plate, a locking bar and a lock head; the inner frame of the first locking plate and the inner frame of the second locking plate are both semicircular, the circular inner diameter formed by the first locking plate and the second locking plate after being closed is larger than the inner diameter of the breaker body and smaller than the outer diameter of the breaker body, and one end of the first locking plate is hinged with one end of the second locking plate; the other end of the first locking plate and the other end of the second locking plate are both provided with a locking hole, and the locking device further comprises an isolation lock matched with the locking hole so as to realize the opening and closing of the first locking plate and the second locking plate;
two ends of the locking bar respectively penetrate through the first through hole on the guide rail and the second through hole on the valve driving device, and the two ends of the locking bar are locked by the lock head to organize the valve driving device to open the valve,
the first through hole is formed in one end, close to the circuit breaker body, of the guide rail; the second through hole is formed in one end, close to the guide rail, of the valve driving device;
the one end of first locking plate with the one end of second locking plate all is provided with the rivet hole, still include with rivet hole matched with rivet.
2. The isolation latch of an electric shock protection vacuum switch of claim 1, wherein: and the first locking plate and the second locking plate are both provided with anti-abrasion protective films.
3. The isolation latch of an electric shock protection vacuum switch of claim 1, wherein: the first locking plate and the second locking plate are both stainless steel locking plates.
4. The temporary locking accessory of the pull sheet type pressing plate is characterized in that: the lock comprises two mutually rotatable semi-cylindrical shells, wherein the rotation centers of the two mutually rotatable semi-cylindrical shells are arranged on one side of the semi-cylindrical shell, a padlock lug is arranged on the other side of the semi-cylindrical shell, and a lock hole is formed in the middle of the padlock lug; the top parts of the two semi-cylindrical shells which can rotate mutually are closed, the bottoms of the two semi-cylindrical shells are open, an opening sheet is arranged in the middle of the two semi-cylindrical shells, and the opening sheet can be clamped on the stud; and after the two semi-cylindrical shells are closed, the lock holes are aligned and used for hanging a padlock for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276468.4U CN211182079U (en) | 2019-12-18 | 2019-12-18 | Electric shock prevention vacuum switch isolation lock catch and poking sheet type pressing plate temporary locking accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276468.4U CN211182079U (en) | 2019-12-18 | 2019-12-18 | Electric shock prevention vacuum switch isolation lock catch and poking sheet type pressing plate temporary locking accessory |
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| Publication Number | Publication Date |
|---|---|
| CN211182079U true CN211182079U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922276468.4U Active CN211182079U (en) | 2019-12-18 | 2019-12-18 | Electric shock prevention vacuum switch isolation lock catch and poking sheet type pressing plate temporary locking accessory |
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| CN (1) | CN211182079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629496A (en) * | 2021-06-21 | 2021-11-09 | 国网浙江省电力有限公司湖州供电公司 | Rotary secondary pressing plate anti-misoperation device and method |
-
2019
- 2019-12-18 CN CN201922276468.4U patent/CN211182079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629496A (en) * | 2021-06-21 | 2021-11-09 | 国网浙江省电力有限公司湖州供电公司 | Rotary secondary pressing plate anti-misoperation device and method |
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