CN203300504U - Mechanical locking device for high tension switch cabinet - Google Patents
Mechanical locking device for high tension switch cabinet Download PDFInfo
- Publication number
- CN203300504U CN203300504U CN2013203160215U CN201320316021U CN203300504U CN 203300504 U CN203300504 U CN 203300504U CN 2013203160215 U CN2013203160215 U CN 2013203160215U CN 201320316021 U CN201320316021 U CN 201320316021U CN 203300504 U CN203300504 U CN 203300504U
- Authority
- CN
- China
- Prior art keywords
- disconnecting link
- cabinet door
- switch cabinet
- mechanical locking
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Patch Boards (AREA)
Abstract
The utility model provides a mechanical locking device for a high tension switch cabinet, and belongs to the field of high-voltage electric safety. The device comprises a high tension switch cabinet door, a breaker, and a disconnecting link. The disconnecting link is disposed on the high tension switch cabinet door. The device is characterized in that the high tension switch cabinet door is hinged with a fan-shaped rotor plate through a hinge seat. The fan-shaped rotor plate is connected with a transmission main shaft of the breaker, and is clamped with a disconnecting link locating pin through a push rod. The high tension switch cabinet door is connected with an inner side connecting rod of the disconnecting link. The device can prevent pulling the disconnecting link on load and closing the disconnecting link on load, thereby reducing accident occurrence of man-made working accidents.
Description
Technical field
The utility model belongs to the high-voltage electrical apparatus security fields, specifically, is a kind of mechanical locking.
Background technology
As everyone knows, GG1 type high-tension switch cabinet does not all have five anti-devices, and the combined floodgate of switch, breaking operation are location-independent with disconnecting link; Disconnecting link also only has position alignment pin on the disconnecting link handle, and during the operation of disconnecting link power transmission, operating personnel pull out alignment pin, and operating handle is pushed into co-bit with disconnecting link, unclamps alignment pin, and the disconnecting link handle is blocked; While operating a switch operation, operating personnel pull out alignment pin, and operating handle pulls open disconnecting link, unclamps alignment pin, and the disconnecting link handle is blocked; This disconnecting link alignment pin, only play dead knife brake lever hand in co-bit, fall position, prevent that disconnecting link from naturally pulling open or closing.
Because this kind switch cubicle does not have the five-defence block function, operating personnel are unfamiliar with equipment when equipment is just gone into operation, operate unskilledly, add in management and there is no strict normalizing operation, on-load broaching tool lock often occurs, because isolation switch does not possess the current interruption ability, disconnecting link in pulling open process, produces high pressure between disconnecting link movable vane and stator blade, the disconnecting link gap produces very large electric field, under the effect of high temperature and highfield, thermionic emission and highfield emission occur, produce electric arc.The disconnecting link gap is drawn widelyr, and arc light just draws longlyer, thereby causes arc grounding, three-phase shortcircuit, damages switch cubicle, causes bus to have a power failure, the boiler extinguishment serious accident.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of mechanical locking that can avoid on-load broaching tool lock, bringing onto load to close disconnecting link.
In order to address the above problem, the scheme that the utility model adopts is: a kind of mechanical locking, comprise high-voltage switch cabinet door, circuit breaker, disconnecting link, disconnecting link is arranged on high-voltage switch cabinet door, it is characterized in that: high-voltage switch cabinet door is by the hinged fan-shaped rotary plate of hinged seat, the fan-shaped rotary plate is connected with the circuit breaker transmission main shaft, and by push rod and disconnecting link alignment pin chucking, described high-voltage switch cabinet door is connected with the inboard connecting rod of described disconnecting link handle.
Described fan-shaped rotary plate is connected by kinematic link with the circuit breaker transmission main shaft.
Described push rod be with spring can automatically reset push rod, an end of push rod blocks the disconnecting link alignment pin, the other end of push rod blocks the fan-shaped rotary plate.
Described high-voltage switch cabinet door is connected by power transmission shaft with the inboard connecting rod of described disconnecting link handle.
Described power transmission shaft is at the other mounting and fixing support of door of switch cabinet, rotating shaft is worn in centre, both sides respectively fill a connecting lever, wherein the latch on the connecting lever of a side blocks the cabinet door, penetrate in Fixed latches frame lockhole, in lock ear groove on lock ear insertion Fixed latches frame on the cabinet door, the connecting lever of opposite side is connected with the connecting rod of disconnecting link handle inboard.
Described latch blocks the cabinet door by the Fixed latches frame.
Described Fixed latches frame is provided with lock ear groove and lockhole, and described lockhole is used for the latch location, and lock ear groove is used for lock ear location.
Be provided with the hole plug by spring self-restoring in described lock ear groove.
The beneficial effects of the utility model are: the transmission by the rotating shaft of switch cubicle operating mechanism realizes the switch operation handle locking, drive drive link by the switch operation handle again simultaneously, make the cabinet door operation also realize locking, operating personnel can operate by normalizing operation, prevent that on hardware on-load broaching tool lock, bringing onto load from closing disconnecting link, reduce artificial misoperation fault and occur.
Description of drawings
Fig. 1 switch "on" position side schematic view.
Fig. 2 switch gate-dividing state side schematic view.
Fig. 3 isolation switch "on" position side schematic view.
Fig. 4 isolation switch state side schematic view of operating a switch.
Fig. 5 opens cabinet door inspecting state side schematic view.
In figure, 1. cabinet door, 2. isolation switch, 3. circuit breaker, 4. swivel plate, 5. push rod, 6. disconnecting link alignment pin, 7. kinematic link, 8. circuit breaker transmission main shaft, the inboard power transmission shafts of 11. disconnecting link handles, 22. away from the connecting lever of cabinet reveal, 33. rotating shafts, 44. connecting levers near the cabinet reveal, 55. latch, 66. Fixed latches framves, 77. lock ears, 88. the isolation switch handle, the inboard connecting rod of 111. disconnecting link handles, 222. hole plugs.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, a kind of mechanical locking, comprise cabinet door 1, circuit breaker 3, disconnecting link 2, and cabinet door 1 is by hinged seat hinging rotary plate 4, and swivel plate 4 is fanning strip.Described swivel plate 4 tops are connected with circuit breaker transmission main shaft 8, and lower swivel plate 4 sides block disconnecting link alignment pin 6;
As shown in Figure 3, described cabinet door 8 is connected with the inboard connecting rod 1 of described disconnecting link handle.
As shown in Figure 1, described swivel plate 4 tops are connected by kinematic link 7 with circuit breaker transmission main shaft 8.It is inboard that described swivel plate 4 is arranged on dead knife brake lever hand cabinet face.
Block disconnecting link alignment pin 6 by push rod 5 described swivel plate 4 belows.Described push rod 5 for spring can automatically reset push rod, an end that leads to the outside blocks disconnecting link alignment pin 6, the other end blocks swivel plate 4 belows.
As shown in Figure 3, described cabinet door 1 is connected by power transmission shaft with the inboard connecting rod 111 of described disconnecting link handle.Described power transmission shaft is by cabinet door mounting and fixing support at switch cubicle, rotating shaft 33 is worn in centre, both sides respectively fill a connecting lever, block the cabinet door near the latch 55 on the connecting lever 44 of cabinet door one side, penetrate in Fixed latches frame 66 lockholes, lock ear 77 on the cabinet door inserts in lock ear groove on Fixed latches framves 66, away from the connecting lever 22 of cabinet door one side, with the connecting rod of disconnecting link handle inboard, is connected.Block the cabinet door near the latch 55 on the connecting lever 44 of cabinet door one side by Fixed latches frame 66.Described Fixed latches frame 66 is provided with lock ear groove and lockhole, and described lockhole is used near latch 55 location on the connecting lever 44 of cabinet door one side, and lock ear groove is used for the location of the lock ear 77 on the cabinet door.
As shown in Figure 5, be provided with hole plug 7 by spring self-restoring in described lock ear groove.
Below in conjunction with accompanying drawing, operation principle of the present utility model is once described:
As shown in Figure 1, when switch closed a floodgate, the connecting lever of circuit breaker transmission main shaft 8 down rotated an angle, drove kinematic link 7, was pushing away swivel plate 4 and had been rotated down, and push rod 5 is released, and disconnecting link handle location pin card 6 is lived; As shown in Figure 2, when the switch separating brake, the connecting lever of circuit breaker transmission main shaft 8 up rotates an angle, drive kinematic link 7, haul angle swivel mount 4 and rotate up, push rod 5 is by spring self-restoring, unlocking device, operating personnel just can pull out disconnecting link handle alignment pin, realize that disconnecting link stops the power transmission operation.
As shown in Figure 3, during the isolation switch closing operation, the isolation switch handle drives inboard power transmission shaft rotation, connecting lever away from the cabinet reveal moves up, move down near cabinet reveal connecting lever, latch is inserted in the lock earhole along Fixed latches frame lockhole, thereby realize cabinet door mechanical latching;
As shown in Figure 4, when isolation switch was operated a switch operation, the isolation switch handle drove inboard power transmission shaft rotation, connecting lever away from the cabinet reveal moves down, and near cabinet reveal connecting lever, moves up, and latch is pulled out from Fixed latches frame lockhole, remove the lock ear, the cabinet door just can be opened.
As shown in Figure 5, under inspecting state, the cabinet door is not related to, hole plug 222 in Fixed latches frame lock ear groove inserts by spring self-restoring in Fixed latches frame lock ear groove, and lockhole is blocked, and the disconnecting link handle can't be operated, prevent that the cabinet door from not closing the disconnecting link that closes, and the maintenance electric shock accidents occurs.When the cabinet door shut, the cabinet door ear of locking inserted in lock ear groove, releases hole plug, and latch just can insert and lock in earhole along Fixed latches frame lockhole, complete switch operation.
Claims (7)
1. mechanical locking, comprise high-voltage switch cabinet door, circuit breaker, disconnecting link, disconnecting link is arranged on high-voltage switch cabinet door, it is characterized in that: high-voltage switch cabinet door is by the hinged fan-shaped rotary plate of hinged seat, the fan-shaped rotary plate is connected with the circuit breaker transmission main shaft, and by push rod and disconnecting link alignment pin chucking, described high-voltage switch cabinet door is connected with the inboard connecting rod of disconnecting link handle.
2. a kind of mechanical locking according to claim 1, it is characterized in that: described fan-shaped rotary plate is connected by kinematic link with the circuit breaker transmission main shaft.
3. mechanical locking according to claim 1, is characterized in that, described push rod be with spring can automatically reset push rod, an end of push rod blocks the disconnecting link alignment pin, the other end of push rod blocks the fan-shaped rotary plate.
4. mechanical locking according to claim 1 is characterized in that: described high-voltage switch cabinet door is connected by power transmission shaft with the inboard connecting rod of described disconnecting link handle.
5. mechanical locking according to claim 4, it is characterized in that: described power transmission shaft is at the other mounting and fixing support of door of switch cabinet, rotating shaft is worn in centre, both sides respectively fill a connecting lever, wherein the latch on the connecting lever of a side blocks the cabinet door, penetrate in Fixed latches frame lockhole, in the lock ear groove on the lock ear insertion Fixed latches frame on the cabinet door, the connecting lever of opposite side is connected with the connecting rod of disconnecting link handle inboard.
6. mechanical locking according to claim 5, it is characterized in that: described latch blocks the cabinet door by the Fixed latches frame; Described Fixed latches frame is provided with lock ear groove and lockhole, and lockhole is used for the latch location, and lock ear groove is used for lock ear location.
7. mechanical locking according to claim 6, is characterized in that: be provided with the hole plug by spring self-restoring in described lock ear groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203160215U CN203300504U (en) | 2013-06-04 | 2013-06-04 | Mechanical locking device for high tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203160215U CN203300504U (en) | 2013-06-04 | 2013-06-04 | Mechanical locking device for high tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300504U true CN203300504U (en) | 2013-11-20 |
Family
ID=49576499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203160215U Expired - Fee Related CN203300504U (en) | 2013-06-04 | 2013-06-04 | Mechanical locking device for high tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300504U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867769A (en) * | 2015-06-01 | 2015-08-26 | 辽宁电能发展股份有限公司 | Linkage structure of single-phase circuit breaker and disconnecting switch |
| CN107834385A (en) * | 2017-11-27 | 2018-03-23 | 宁波伊顿电力科技有限公司 | Earth leakage protective distribution box |
-
2013
- 2013-06-04 CN CN2013203160215U patent/CN203300504U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867769A (en) * | 2015-06-01 | 2015-08-26 | 辽宁电能发展股份有限公司 | Linkage structure of single-phase circuit breaker and disconnecting switch |
| CN107834385A (en) * | 2017-11-27 | 2018-03-23 | 宁波伊顿电力科技有限公司 | Earth leakage protective distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20190604 |