CN107887198B - Interlocking device for door body of switch cabinet - Google Patents
Interlocking device for door body of switch cabinet Download PDFInfo
- Publication number
- CN107887198B CN107887198B CN201711385500.1A CN201711385500A CN107887198B CN 107887198 B CN107887198 B CN 107887198B CN 201711385500 A CN201711385500 A CN 201711385500A CN 107887198 B CN107887198 B CN 107887198B
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- Prior art keywords
- door
- chamber door
- locking
- door body
- interlocking device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Patch Boards (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention provides an interlocking device for a door body of a switch cabinet, wherein the door body comprises a cable chamber door and a circuit breaker chamber door, and further comprises a transmission assembly capable of converting the rotation of an earthing switch operating shaft into linear motion and a first interlocking device for synchronously unlocking or locking the cable chamber door and the circuit breaker chamber door, the first interlocking device comprises a transmission shaft, a connecting fork, a connecting lever hinged with the connecting fork and 2 groups of locking assemblies symmetrically hinged to two sides of the connecting lever, the locking assemblies realize unlocking of the door body under the driving of the connecting lever when the earthing switch operating shaft rotates along a first direction, and realize locking of the door body under the driving of the connecting lever when the earthing switch operating shaft rotates along a second direction. The interlocking device solves the problem that the door body of the switch cabinet in the prior art cannot be interlocked and closed sequentially for the cable chamber door and the short-circuit chamber door.
Description
Technical Field
The invention relates to an interlocking device for a door body of a switch cabinet.
Background
Existing earthing switch interlocks cannot be latched with the circuit breaker chamber door and the cable chamber door. And without a mechanical interlock, the sequential operation of the breaker chamber door and the cable chamber door is completed. I.e., without closing the cable compartment door, the circuit breaker compartment door cannot be closed.
Disclosure of Invention
The invention provides an interlocking device for a switch cabinet door body, which solves the problem that the interlocking device for the switch cabinet door body in the prior art cannot simultaneously interlock and sequentially close a cable chamber door and a short-circuit chamber door.
In order to solve the technical problems, the interlocking device for the door body of the switch cabinet adopts the following technical scheme:
the utility model provides a cubical switchboard is interlock for door body, the door body includes cable chamber door and circuit breaker chamber door, still includes the transmission assembly that can turn into linear motion with the rotation of earthing switch operation axis and is used for carrying out unblock or the first interlock that locks in step to cable chamber door and circuit breaker chamber door, first interlock include transmission shaft, connection fork, with the articulated connecting lever of connecting fork and 2 groups symmetry articulate the locking Assembly in the connecting lever both sides, locking Assembly realizes the unblock to the door body under the connecting lever drives when earthing switch operation axis rotates along the first direction, realizes the locking to the door body under the connecting lever drives when earthing switch operation axis rotates along the second direction.
The invention also comprises the following additional technical features:
the locking assembly comprises a locking rod, a limiting piece and an elastic piece, the locking rod is inserted into the connecting plate, one end of the locking rod is hinged to the connecting lever, the other end of the locking rod is inserted into a cable chamber door or a breaker chamber door of the corresponding side, the limiting piece is inserted into the locking rod, and the elastic piece is arranged between the limiting piece and the connecting plate.
Further, still including the second interlock, the second interlock resets the piece including closing a door turning arm, closing a door locking lever and elasticity, closing a door locking lever cartridge is in on the connecting plate, during cable chamber door non-closure state, closing a door locking lever supports and leans on the circuit breaker room door the cartridge has the setting element on the closing a door locking lever, the setting element is located the connecting plate top the setting element with be provided with between the connecting plate elasticity resets the piece.
Furthermore, the door closing crank arm is an L-shaped crank arm, one end of the door closing crank arm is hinged with the door closing lock rod, and the other end of the door closing crank arm is hinged with the cabinet body.
Further, drive assembly includes the driving strap and with the push pedal of driving strap meshing, be provided with on the push pedal be used for with the contact of transmission shaft contact complex is to the pressure surface.
Furthermore, the earthing switch operating shaft is provided with a hexagonal prism, the transmission piece is provided with a hexagonal hole matched with the hexagonal prism in a plug-in mounting mode, the transmission piece is circumferentially provided with transmission teeth, and the push plate is provided with a tooth hole matched with the transmission teeth.
Further, the turning arm includes 2 arc arms, the both ends of arc arm all are provided with the pin joint, 2 arc arm one end is passed through the pivot and is articulated, and the other end is articulated with the locking lever that corresponds the side respectively.
Furthermore, the limiting part is a limiting cotter pin, and the lock rod is provided with a plug-in hole for plugging the limiting cotter pin.
Further, the elastic member is a spring.
Furthermore, the push plate is in surface contact fit with the transmission shaft, and the push plate is in contact with or separated from the transmission shaft when moving leftwards or rightwards.
The invention has the following advantages and positive effects:
the invention provides an interlocking device for a door body of a switch cabinet, wherein the door body comprises a cable chamber door and a circuit breaker chamber door, and further comprises a transmission assembly capable of converting the rotation of an earthing switch operating shaft into linear motion and a first interlocking device for synchronously unlocking or locking the cable chamber door and the circuit breaker chamber door, the first interlocking device comprises a transmission shaft, a connecting fork, a connecting lever hinged with the connecting fork and 2 groups of locking assemblies symmetrically hinged to two sides of the connecting lever, the locking assemblies realize unlocking of the door body under the driving of the connecting lever when the earthing switch operating shaft rotates along a first direction, and realize locking of the door body under the driving of the connecting lever when the earthing switch operating shaft rotates along a second direction. According to the interlocking device for the switch cabinet door body, the rotating grounding switch operation shaft can rotate, power is transmitted to the transmission assembly connected with the rotating grounding switch operation shaft, the rotating motion is converted into linear motion, meanwhile, the transmission assembly drives the interlocking device to unlock or lock the door body, only the automatic locking of the door body is realized through the interlocking device for the switch cabinet door body, the locking and unlocking of a cable chamber door and a circuit breaker chamber door can also be synchronously realized, and the operation is simpler and more convenient.
Drawings
FIG. 1 is a front view of an interlock device for a door body of a switch cabinet according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a left side view of the interlocking device for the door body of the switch cabinet of the present invention;
fig. 5 is a partially enlarged view of fig. 4 at C.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description, and the present invention provides an embodiment of an interlocking device for a door body of a switchgear, which is shown in fig. 1-5, specifically, a door body in the embodiment mainly refers to a cable door and a circuit breaker door, the interlocking device is mainly used for synchronously locking and unlocking the cable door and a door body of a circuit breaker chamber, a specific structure of the interlocking device includes a transmission assembly 1 capable of converting rotation of an earthing switch operating shaft into linear motion and a first interlocking device 2 for synchronously unlocking or locking the cable door and the circuit breaker door, the first interlocking device 2 includes a transmission shaft 21, a connecting fork 22, and a crank arm 23 and a pair of crank arms 2 hinged to the connecting fork 22 are symmetrically hinged to a lock assembly 24 on two sides of the crank arm 23, the lock assembly 24 can unlock the door body under the driving of the crank arm 23 when the earthing switch operating shaft rotates along a first direction, when the earthing switch operating shaft rotates along the second direction, the door body is locked under the driving of the crank arm 23, preferably, the first direction in this embodiment is the clockwise rotation direction of the earthing switch operating shaft, and the second direction is the counterclockwise rotation direction of the earthing switch operating shaft, which is not limited specifically herein.
Further, still include connecting plate 3 in this embodiment, locking assembly 24 includes locking lever 241, locating part 242 and elastic component 243, locking lever 241 cartridge is in on the connecting plate 3, its one end with the turning arm 23 is articulated, the other end cartridge is in the cable chamber door or the circuit breaker room door that correspond the side, locking lever 241 that corresponds with the cable chamber door then cartridge is in the cable chamber door, realize the locking to the cable chamber door, the locking lever 241 cartridge that corresponds with the circuit breaker room door realizes the locking to the circuit breaker room door in the circuit breaker room door, its locking is mainly realized in the lockhole that corresponds the door body through locking lever 241 cartridge, when the unblock, locking lever 241 breaks away from in the lockhole and can realize the unblock. The stopper 242 is inserted into the lock rod 241, the elastic member 243 is disposed between the stopper 242 and the connecting plate 3, so that the elastic member 243 is compressed to store energy when the lock rod 241 moves upward or downward, and the lock rod 241 is rebounded into the lock hole by the energy stored by the elastic member 243 to lock the lock rod.
The earthing switch operating shaft rotates through the transmission action of the transmission assembly 1, the rotation of the earthing switch operating shaft is converted into linear motion, the transmission assembly 1 can transmit acting force to the transmission shaft 21, the transmission shaft 21 can move linearly leftwards and rightwards, the transmission shaft 21 is fixedly connected with the connecting fork 22, the connecting fork 22 connected with the transmission shaft 21 can be driven to move through the transmission shaft 21, the connecting fork 22 is hinged to the crank arm 23, when the connecting fork 22 acts on the crank arm 23 linearly, one end of the crank arm 23 is hinged to the connecting fork 22, and the other end of the crank arm is hinged to the lock rod 241, so that the connecting fork can rotate under the action of the linear thrust, the lock rod 241 connected with the connecting fork is pushed to move linearly upwards or downwards, and the elastic piece 243 is.
Preferably, the crank arm 23 in this embodiment is configured as follows: the crank arm 23 comprises 2 arc arms 231, hinge points are arranged at two ends of each arc arm 231, one end of the 2 arc-shaped arms 231 is hinged with the connecting fork 22 through a shaft pin, and when in specific connection, the pin shaft can be respectively passed through the hinge point of the connecting fork 22 and the 2 arc-shaped arms 231, and the other end is respectively hinged with the locking bar 241 at the corresponding side, since the crank arm 23 in this embodiment has a symmetrical structure, and there are 2 arc arms 231, and may be connected with locking bars 241 provided at the upper and lower sides, respectively, locking or unlocking of the cable chamber door and the breaker chamber door is achieved by driving up and down movements of the locking bars 241 at the upper and lower sides, since the crank arm 23 in this embodiment is simultaneously transferred to the two arc arms 231 when receiving the acting force of the yoke 22, the cable chamber door and the breaker chamber door can be synchronously locked or unlocked.
Further, for realizing closing the door to the order of cable chamber door and circuit breaker chamber door, still be provided with second interlock 4 in this embodiment, second interlock 4 is including closing door turning arm 42, door locking lever 41 and elasticity piece 43 that resets, door locking lever 41 cartridge is in on the connecting plate 3, and all integrate to same connecting plate 3 with first interlock, reduce occupation space, make whole structure compacter when the cable chamber door is not closed state, door locking lever 41 supports and leans on the circuit breaker chamber door, when the cable chamber door does not close promptly, because door locking lever 41 is spacing to the circuit breaker chamber door, cause it can't close it the last cartridge of door locking lever 41 has setting element 44, and setting element 44 preferably adopts the locating pin, setting element 43 is located connecting plate 3 top setting element 44 with be provided with between the connecting plate 3 elasticity piece 43 is preferred, door turning arm 42 is L type turning arm, its one end with the door locking lever 41 articulates, and the cabinet body articulates.
Preferably, drive assembly 1 includes drive plate 11 and the push pedal 12 with drive plate 11 meshing, be provided with on the push pedal 12 be used for with the contact of transmission shaft 21 contact complex is supported and is pressed face 121, push pedal 12 with transmission shaft 21 is the face contact cooperation, push pedal 12 when moving left or right the realization with the contact of transmission shaft 21 or break away from.
A preferable arrangement manner of the grounding switch operating shaft in the present embodiment in driving connection with the transmission strap 11 is as follows: the earthing switch operating shaft is hexagonal prism, be provided with on the drive plate 11 with hexagonal prism cartridge complex hexagonal hole 111, adopt interference fit between earthing switch operating shaft and the drive plate 11, realize fixing and transmission between them, for the rotation that realizes drive plate 11 drives push pedal 12 and removes drive plate 11 circumference is provided with driving tooth 112, and driving tooth 112 arranges along 1/2 girth length direction of drive plate 11 at least, does not do specific restriction here be provided with on the push pedal 12 with driving tooth 112 complex perforation 121. Can drive the drive plate 11 and rotate when earthing switch operating axis rotates, through the cooperation of driving tooth 112 and tooth hole 122 on the drive plate 11 for push pedal 12 is the rectilinear movement of left and right sides direction, and push pedal 12 supports through the contact of its top and presses face 121 transmission effort and transmit for transmission shaft 21, makes transmission shaft 21 remove.
Preferably, the limiting member 242 is a limiting cotter pin, and the lock bar 241 is provided with an insertion opening for inserting the limiting cotter pin.
Preferably, the elastic member 243 is a spring. The elastic restoring piece 43 is also a spring, and can store energy when the hand is pressed and release energy when the pressure is removed.
The switch cabinet door body of this embodiment uses interlock's specific theory of operation does:
operation at power outage: the grounding switch operating shaft rotates clockwise to drive the transmission piece 11 to rotate clockwise; the driving strap 11 drives the pushing plate 12 to move leftwards, and the pushing plate 12 pushes the transmission shaft 21 to move leftwards. The connecting fork 22 is hinged to the connecting lever 23 through a shaft pin to form an arrow-shaped structure, and the connecting lever 23 drives the lock rod 241 to move downwards to unlock the door of the circuit breaker chamber. When the lock rod 241 moves downward, the limiting member 242 is driven to move downward, the limiting member 242 drives the elastic member 243 to move downward, and the elastic member 243 finishes energy storage. The unlocking principle of the cable chamber door is the same, the unlocking is completed simultaneously, the unlocking of the circuit breaker chamber door and the cable chamber door is completed, and the circuit breaker chamber door and the cable chamber door can be opened
Operation at power transmission: firstly, the cable chamber door is closed, the tongue plate of the cable chamber door pushes the door closing crank arm 42, the door closing crank arm 42 rotates to drive the door closing lock rod 41 to move downwards, the positioning part 44 is driven to move downwards when the door closing lock rod 41 moves downwards, the positioning part 44 drives the elastic reset part 43 to move downwards, and the elastic reset part 43 finishes energy storage. The circuit breaker chamber door can be closed. And completing the sequential door closing operation, otherwise, the door closing lock rod 41 is inserted into the breaker chamber door all the time under the action of the elastic reset piece 43, and the breaker chamber door cannot be closed.
After closing cable chamber door and circuit breaker room door, the earthing switch operating axis anticlockwise rotates, drives driving plate 11 anticlockwise rotation simultaneously, and push pedal 12 passes through gear drive right direction motion this moment, no longer contacts with transmission shaft 21. The elastic member 243 releases energy to drive the limiting member 242 to move upward, the limiting member 242 drives the lock rod 241 to move upward, and the crank arm 23 rotates to drive the connecting fork 22 and the transmission shaft 21 to move to the left. At this time, the whole design is like bow and arrow shooting, the lock rod 241 locks the door of the circuit breaker chamber, and the lock rod 241 below locks the door of the cable chamber.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. The utility model provides a cubical switchboard is interlock for door body, the door body includes cable chamber door and circuit breaker chamber door, its characterized in that still includes the connecting plate, can turn into linear motion's transmission assembly with the rotation of earthing switch operating axis and be used for carrying out unblock or the first interlock that locks in step to cable chamber door and circuit breaker chamber door, first interlock include transmission shaft, yoke, with the articulated turning arm of yoke and 2 groups symmetry articulate the locking Assembly in turning arm both sides, locking Assembly realizes the unblock to the door body under the turning arm drives when earthing switch operating axis rotates along the first direction, when earthing switch operating axis rotates along the second direction
The locking assembly comprises a locking rod, a limiting part and an elastic part, the locking rod is inserted into the connecting plate, one end of the locking rod is hinged to the connecting rod, the other end of the locking rod is inserted into a cable chamber door or a breaker chamber door of the corresponding side, the limiting part is inserted into the locking rod, and the elastic part is arranged between the limiting part and the connecting plate.
2. The interlocking device for the door body of the switch cabinet according to claim 1, further comprising a second interlocking device, wherein the second interlocking device comprises a door closing crank arm, a door closing lock rod and an elastic reset piece, and the door closing lock rod is inserted into the second interlocking device
On the connecting plate, when the cable chamber door is in a non-closed state, the door closing lock rod is abutted against the circuit breaker chamber door
A positioning piece is inserted on the rod and positioned above the connecting plate, and a positioning piece is arranged between the connecting plate and the positioning piece
The elastic reset piece is arranged.
3. The interlock device for door bodies of switch cabinets according to claim 2, wherein said closing crank arm is an L type crank
And one end of the arm is hinged with the door closing lock rod, and the other end of the arm is hinged with the cabinet body.
4. The interlock device for door of switch cabinet according to claim 1, wherein said driving assembly comprises a driving strap and
and the push plate is meshed with the transmission piece, and a contact abutting surface which is used for being in contact fit with the transmission shaft is arranged on the push plate.
5. The interlock device for a door body of a switch cabinet according to claim 4, wherein the earthing switch operating shaft has six positions
The transmission piece is provided with hexagonal holes matched with the hexagonal prism in a plug-in mounting manner, and the transmission piece is circumferentially provided with transmission
The push plate is provided with a tooth hole matched with the transmission tooth.
6. The interlock device for door of switch cabinet according to claim 1, wherein said crank arm comprises 2 arc arms
Both ends of the arc-shaped arms are provided with hinged joints, one end of each arc-shaped arm is hinged through a shaft pin, and the other end of each arc-shaped arm is respectively hinged with the corresponding side
The lock rod is hinged.
7. The interlocking device for the door body of the switch cabinet according to claim 1, wherein the limiting member is a limiting cotter pin,
and the lock rod is provided with a plug-in opening for plugging the limit cotter pin.
8. The interlock device for a door of a switch cabinet according to claim 1, wherein said elastic member is a spring.
9. The interlock device for door of switch cabinet according to claim 4, wherein said push plate and said transmission shaft are
The push plate is in surface contact fit, and the push plate is contacted with or separated from the transmission shaft when moving leftwards or rightwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385500.1A CN107887198B (en) | 2017-12-20 | 2017-12-20 | Interlocking device for door body of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385500.1A CN107887198B (en) | 2017-12-20 | 2017-12-20 | Interlocking device for door body of switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107887198A CN107887198A (en) | 2018-04-06 |
| CN107887198B true CN107887198B (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385500.1A Active CN107887198B (en) | 2017-12-20 | 2017-12-20 | Interlocking device for door body of switch cabinet |
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| Country | Link |
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| CN (1) | CN107887198B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565764B (en) * | 2018-06-19 | 2023-09-08 | 青岛特锐德电气股份有限公司 | Five-prevention interlocking device and insulating ring main unit |
| CN114000784B (en) * | 2021-09-30 | 2023-04-07 | 华能南京燃机发电有限公司 | Locking device for switch cabinet |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047693U (en) * | 1989-04-04 | 1989-11-15 | 镇江市电工器材厂 | Programmable linkage lock for dual door on power cabinet |
| CN204715947U (en) * | 2015-05-08 | 2015-10-21 | 中国海洋石油总公司 | A kind of anti-jamming refrigerating box hermatic door |
| CN106356217A (en) * | 2016-09-14 | 2017-01-25 | 中国船舶重工集团公司第七○四研究所 | Trans-screen interlocking device for earthing mechanisms of switch cabinets |
| CN205985911U (en) * | 2016-08-25 | 2017-02-22 | 河南森源电气股份有限公司 | Cubical switchboard and valve locking mechanical system thereof |
| CN206194632U (en) * | 2016-08-31 | 2017-05-24 | 华仪电气股份有限公司 | Interlock of earthing switch AND gate of cubical switchboard |
| CN206225814U (en) * | 2016-11-23 | 2017-06-06 | 林国华 | A kind of switch cubicle with door interlocking mechanism |
| CN106953260A (en) * | 2017-05-10 | 2017-07-14 | 河南森源电气股份有限公司 | A kind of switch cubicle and its valve drive mechanism with auto-lock function |
| CN207731836U (en) * | 2017-12-20 | 2018-08-14 | 青岛特锐德电气股份有限公司 | A kind of switchgear door body interlock |
-
2017
- 2017-12-20 CN CN201711385500.1A patent/CN107887198B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047693U (en) * | 1989-04-04 | 1989-11-15 | 镇江市电工器材厂 | Programmable linkage lock for dual door on power cabinet |
| CN204715947U (en) * | 2015-05-08 | 2015-10-21 | 中国海洋石油总公司 | A kind of anti-jamming refrigerating box hermatic door |
| CN205985911U (en) * | 2016-08-25 | 2017-02-22 | 河南森源电气股份有限公司 | Cubical switchboard and valve locking mechanical system thereof |
| CN206194632U (en) * | 2016-08-31 | 2017-05-24 | 华仪电气股份有限公司 | Interlock of earthing switch AND gate of cubical switchboard |
| CN106356217A (en) * | 2016-09-14 | 2017-01-25 | 中国船舶重工集团公司第七○四研究所 | Trans-screen interlocking device for earthing mechanisms of switch cabinets |
| CN206225814U (en) * | 2016-11-23 | 2017-06-06 | 林国华 | A kind of switch cubicle with door interlocking mechanism |
| CN106953260A (en) * | 2017-05-10 | 2017-07-14 | 河南森源电气股份有限公司 | A kind of switch cubicle and its valve drive mechanism with auto-lock function |
| CN207731836U (en) * | 2017-12-20 | 2018-08-14 | 青岛特锐德电气股份有限公司 | A kind of switchgear door body interlock |
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| Publication number | Publication date |
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| CN107887198A (en) | 2018-04-06 |
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