CN109066439A - A kind of handcart interlocking mechanism of five-prevention interlocking device - Google Patents
A kind of handcart interlocking mechanism of five-prevention interlocking device Download PDFInfo
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- CN109066439A CN109066439A CN201811037837.8A CN201811037837A CN109066439A CN 109066439 A CN109066439 A CN 109066439A CN 201811037837 A CN201811037837 A CN 201811037837A CN 109066439 A CN109066439 A CN 109066439A
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- Prior art keywords
- locking plate
- locking
- circuit breaker
- handcart
- earthing switch
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- 230000007246 mechanism Effects 0.000 title claims abstract description 83
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 description 26
- 239000000806 elastomer Substances 0.000 description 26
- 238000010586 diagram Methods 0.000 description 15
- 239000000284 extract Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Trip Switchboards (AREA)
Abstract
The invention discloses a kind of handcart interlocking mechanisms of five-prevention interlocking device, including the drive mechanism for operating axis connection with earthing switch, the torque of earthing switch operating shaft capable of being passed to circuit breaker cart, the locking structure for being connect with drive mechanism, circuit breaker cart being prevented to be extracted breaker chamber in grounding switch tripping, with locking structure linkage, the limiting structure of operating breaker handcart when the grounding switch is closed is prevented, and prevents the circuit breaker cart location structure that earthing switch closes a floodgate not in testing position；Above-mentioned handcart interlocking mechanism is safe and reliable, pass through the cooperation between multiple structures, guarantee only have circuit breaker cart in testing position, earthing switch operating shaft just closes a floodgate to earthing switch, and it is avoided that when the grounding switch is closed, when can operate worm screw by operation handcart and circuit breaker cart is pushed into operating position, and prevent grounding switch tripping, circuit breaker cart is pulled out into breaker chamber.
Description
Technical field
The present invention relates to hands injured technical fields, and in particular to a kind of handcart interlocking mechanism of five-prevention interlocking device.
Background technique
When hands injured breaks down or overhauls, in order to ensure personal safety, operator after earthing switch must close a floodgate
It just can enter, therefore the interlocking of earthing switch and door is indispensable in high-tension switch gear.In the operating process of hands injured
In to accomplish " five anti-": 1, the circuit breaker cart in hands injured cannot be introduced into operating position after experimental site combined floodgate；2, handcart
At the time of apposition, breaker can not close a floodgate the earthing of cabinet cabinet；3, the breaker in hands injured during closing operation, after disk cabinet
Door is latched with the machinery on earthing with cabinet door；4, the breaker in hands injured closes a floodgate at work, and grounding knife can not be put into；
5, the breaker in hands injured when working and closing operation, can not exit the operating position of circuit breaker cart.
The design of interlocking mechanism is to meet in breaker chamber " five is anti-" requirement between circuit breaker cart and earthing switch
" prevent accidentally point, accidentally close earthing switch " and design, it acts as: only earthing switch be in gate-dividing state when, breaker
Handcart could shake from testing position and enter operating position；Breaker earthing switch at operating position cannot close a floodgate, with effectively anti-
Only maloperation；Existing breaker chamber it is difficult to ensure that interlocking it is reliable, or deposit that driving error in post-conversion is big, movement is not achieved and wants
The missing asked, there are security risks.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming defect in the prior art, to provide a kind of safety
Reliably, it is convenient to operate, and circuit breaker cart could shake from testing position when earthing switch is in gate-dividing state enters operating position, breaks
Device earthing switch at operating position in road cannot close a floodgate, to effectively prevent the handcart interlocking machine of the five-prevention interlocking device of maloperation
Structure.
A kind of handcart interlocking mechanism of five-prevention interlocking device, including with earthing switch operation axis connection, can be by the ground connection
The torque of switch operating shaft passes to the drive mechanism of circuit breaker cart, connect with the drive mechanism, prevents the breaker
Handcart is extracted the locking structure of the breaker chamber in grounding switch tripping, with locking structure linkage, prevents in institute
It states when earthing switch closes a floodgate and operates the limiting structure of the circuit breaker cart, and prevent circuit breaker cart not in testing position when institute
State the location structure of earthing switch combined floodgate.
The drive mechanism includes the rocking bar for rotating and swinging with the earthing switch operating shaft, in the effect of the rocking bar
The lower joint arm rotated, is fixedly connected and with the swingle that the joint arm rotates with the joint arm, and is connected to the rotation
Bar is with respect to the driving cam at the position of third locking plate.
The locking structure includes the handcart operation worm screw slidable connection of opposite circuit breaker cart, opposite drive mechanism
The third locking plate of driving cam setting takes shape in breaker chamber side wall, is adapted to the third lock of grafting with the third locking plate
Only hole, and connect the third locking plate and breaker chamber side wall, the third locking plate is made to be plugged in the third lock
The only third return unit in hole.
The limiting structure includes the limiting groove for taking shape in handcart the operation worm screw and third locking plate junction,
The first handle hole for taking shape in the third locking plate, allowing handcart operation worm screw rotation process in it, and described
Cooperate when third locking plate is moved to the left under the action of the driving cam with the limiting slot, limit the handcart operation snail
First limiting holes of bar rotation process.
The location structure includes that can protrude outward under the action of the circuit breaker cart, in the effect of the 4th return unit
The positioning pin inwardly replied down takes shape in the third locking plate and the positioning pin junction, allows the positioning pin opposite
Second handle hole of the third locking plate disengaging movement, and institute is allowed when the positioning pin and the circuit breaker cart offset
State third locking plate be moved to the left, prevented when the positioning pin is not connect with the circuit breaker cart third locking plate to
The third handle hole moved left.
Having between the driving cam and sliding part of the drive mechanism can prevent the earthing switch described disconnected
Road device handcart does not reach the barrier structure to close a floodgate when testing position.
The barrier structure includes the countercheck rod that is set to the driving cam, can connect with the upper wall of the sliding part；
The countercheck rod limits the sliding part sliding under the cooperation of the third locking plate.
The circuit breaker cart can be fixed on described break by being provided between the circuit breaker cart and the breaker chamber
The indoor connect-disconnect structure of road device.
The connect-disconnect structure includes the first locking plate and second for being slidably connected to handcart operation worm screw two sides respectively
Locking plate, is separately formed at the position of relatively described first locking plate of the breaker chamber inner wall and the second locking plate and institute
The first locking hole and the second locking hole of the first locking plate and the cooperation of the second locking plate are stated, first locking plate is resetted first
The lower state for keeping being inserted into first locking hole of part effect, second locking plate keep insertion under the effect of the second return unit
The state of second locking hole；It will be pulled in first locking plate and the second locking plate phase, so that first locking plate
It is detached from first locking hole and the second locking hole respectively with the second locking plate, the circuit breaker cart can be drawn out the open circuit
Device room.
The hand handle for grasping is provided on first locking plate and the second locking plate.
Third institute's locking plate and the ipsilateral setting of the first locking plate；It forms on the third locking plate suitable for institute
State the mobile loose slot of hand handle.
The circuit breaker cart is provided with the buckle structure that can position the operating position of the circuit breaker cart；The lock
Structure includes the closing piece for being set to handcart operation worm screw, be mounted on the selvage at the operating position form it is suitable
The lockhole of locking is caught in the locating piece.
Technical solution of the present invention has the advantages that
1. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, including axis connection, energy are operated with earthing switch
The drive mechanism that the torque of earthing switch operating shaft is passed to circuit breaker cart connect with drive mechanism, prevents breaker hand
Vehicle is extracted the locking structure of breaker chamber in grounding switch tripping, with locking structure linkage, prevents from closing a floodgate in earthing switch
When operating breaker handcart limiting structure, and prevent circuit breaker cart not in testing position earthing switch close a floodgate positioning knot
Structure；Above-mentioned handcart interlocking mechanism is safe and reliable, by the cooperation between multiple structures, guarantees only have circuit breaker cart in test position
When setting, earthing switch operating shaft just closes a floodgate to earthing switch, and is avoided that when the grounding switch is closed, can pass through manipulator
Vehicle operates worm screw and circuit breaker cart is pushed into operating position, and when preventing grounding switch tripping, circuit breaker cart is pulled out
Breaker chamber.
2. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, locking structure includes opposite circuit breaker cart
Handcart operation worm screw slidable connection, opposite drive mechanism the third locking plate that is arranged of driving cam, take shape in breaker
Room side wall, the third locking hole that grafting is adapted to third locking plate, and connect third locking plate and breaker chamber side wall, make
Third locking plate is plugged in the third return unit of third locking hole；Above-mentioned locking structure utilizes third locking plate, third locking hole
Circuit breaker cart is locked in breaker chamber with third return unit, third locking plate is inserted under the action of third return unit
In third locking hole, only when earthing switch closes a floodgate, the driving cam of drive mechanism acts on third locking plate, so that third is locked
Only plate is moved to the left, and is detached from third locking hole, circuit breaker cart could be pulled out breaker chamber, can effectively prevent from opening in ground connection
Circuit breaker cart is pulled out into breaker chamber when closing separating brake, maloperation is prevented, improves the security performance of hands injured.
3. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, limiting structure includes taking shape in handcart operation
The limiting groove of worm screw and third locking plate junction takes shape in third locking plate, handcart operation worm screw is allowed to rotate behaviour in it
The first handle hole made, and when being moved to the left under the action of third locking plate is in driving cam with limiting groove cooperation, limitation hand
First limiting holes of vehicle operation worm screw rotation process；Above-mentioned limiting structure passes through the movement of third locking plate, and handcart operates worm screw
Connection with third locking plate changes, and when handcart operation worm screw connect with the first handle hole, handcart operation worm screw can be into
Row operation, when handcart operation worm screw connect with the first limit hole, handcart operation worm screw cannot be operated, and such handcart operates worm screw
With grounding switch operation interlocking.
4. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, location structure includes can be in circuit breaker cart
Under the action of the positioning pin that protrudes outward, inwardly replied under the action of four return units, take shape in third locking plate and positioning
At pin connection, allow positioning pin with respect to the second handle hole of third locking plate disengaging movement, and in positioning pin and circuit breaker cart
Allow third locking plate to be moved to the left when offseting, prevent third locking plate to moving to left when positioning pin is not connect with circuit breaker cart
Dynamic third handle hole；In above-mentioned location structure, between positioning pin, the 4th return unit, circuit breaker cart and third locking plate
Mutual cooperation, when circuit breaker cart is located at operating position, circuit breaker cart not with positioning pin connection, at this point, positioning pin exists
Limitation third locking plate in the second handle hole is inserted under the action of 4th return unit to be moved to the left, earthing switch can not close a floodgate,
When circuit breaker cart is located at testing position, circuit breaker cart and positioning pin connection, and positioning pin is ejected outward, at this point,
Positioning pin releases the limitation to third locking plate, and third locking plate can be moved to the left, and positioning pin enters in third handle hole, ground connection
Switch closes a floodgate；Said structure design is ingenious, securely and reliably, guarantees circuit breaker cart at operating position, earthing switch cannot close
Lock prevents maloperation.
5. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, barrier structure is convex including being set to transmission
Wheel, the countercheck rod that can be connect with the upper wall of sliding part；Countercheck rod limits sliding part sliding under the cooperation of third locking plate；It is above-mentioned
Barrier structure prevents sliding part from not completely arriving at examination in circuit breaker cart using the countercheck rod on third locking plate and driving cam
Slide downward when testing position, so that the operation port of earthing switch operating shaft is exposed, when circuit breaker cart does not reach testing position,
Earthing switch is in gate-dividing state, and third locking plate is locked by location structure, cannot bounce back, at this point, sliding part is pressed down on, resistance
Bar is connect with sliding part, and the one end of driving cam far from countercheck rod offsets with third locking plate, and driving cam is prevented to continue
Rotation so that sliding part also can not slide downward, and then operation port can not be opened, and earthing switch combined floodgate can not be carried out；Above-mentioned resistance
Gear structure can guarantee the combined floodgate that only just can be carried out earthing switch when circuit breaker cart is in testing position, securely and reliably, prevent
Only maloperation.
6. the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, circuit breaker cart is additionally provided with breaker hand
Vehicle is fixed on the indoor connect-disconnect structure of breaker；Connect-disconnect structure includes the first locking plate and the second locking that opposite can be slidably connected
Plate is separately formed in the first locking hole of breaker chamber inner wall and the second locking hole and the first return unit and the second return unit；
What above-mentioned connect-disconnect structure cooperated by the first locking plate and the second locking plate and respectively with the first locking plate and the second locking plate
Circuit breaker cart is fixed in breaker chamber by the first return unit and the second return unit, solid and reliable, is only inwardly pulled with hand
First locking plate and the second locking plate could unlock connect-disconnect structure, extract circuit breaker cart out breaker chamber, sound construction can
It leans on.
7. being arranged on the handcart interlocking mechanism of five-prevention interlocking device provided by the invention, the first locking plate and the second locking plate
There is hand handle；Above structure is for the ease of holding the first locking plate of operation and the second locking plate.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram of the provided by the invention five anti-interlocking mechanisms under the opening state of front door；
Fig. 2 is structural schematic diagram of the provided by the invention five anti-interlocking mechanisms under preceding door closure state；
Fig. 3 is the structural schematic diagram of rear door interlocking mechanism shown in Fig. 2；
Fig. 4 is the structural schematic diagram of front gate interlocking mechanism shown in Fig. 2；
Fig. 5 is the structural schematic diagram of another angle of front gate interlocking mechanism shown in Fig. 2；
Fig. 6 is the structural schematic diagram of handcart interlock shown in Fig. 2；
Fig. 7 is the schematic diagram of drive mechanism shown in fig. 6；
Fig. 8 is the schematic diagram of locking structure shown in fig. 6, limiting structure and location structure；
Fig. 9 is the structural schematic diagram of driving cam shown in fig. 6；
Figure 10 is the structural schematic diagram of positioning pin shown in fig. 6；
Figure 11 is the structural schematic diagram of third locking plate shown in fig. 6；
Figure 12 is the structural schematic diagram of the first locking plate shown in fig. 6；
Figure 13 is the structural schematic diagram of the second locking plate shown in fig. 6；
Figure 14 is the structural schematic diagram that handcart shown in fig. 6 operates worm screw；
Figure 15 is the schematic diagram of cable chamber door locking structure shown in Fig. 2；
Description of symbols: 1, earthing switch operating shaft；2, rear door interlocking mechanism；21, the first position limiting structure；211, it props up
Frame；212, the second gag lever post；2121, limiting slot；213, the first gag lever post；214, the first resilient bias；215, position-limited wheel；
22, locking structure；221, latch hook；222, lockplate；3, front gate interlocking mechanism；31, first baffle；311, through-hole；312, it operates
Mouthful；32, second baffle；33, sliding part；331, track；3311, the first track；3312, the second track；332, handle；34, bullet
Property block；341, limited block；35, fastener；4, circuit breaker cart；41, the first locking plate；411, the 4th handle hole；412, the 5th
Handle hole；413, the first circular hole；414, the second limiting holes；42, hand handle；43, the second locking plate；431, the 6th handle hole；432,
7th handle hole；433, the second circular hole；434, third limiting holes；44, positioning pin；45, handcart operates worm screw；451, limiting groove；
46, third locking plate；461, the first handle hole；462, the first limiting holes；463, the second handle hole；464, third handle hole；47,
Third locking hole；48, loose slot；49, the first locking hole；5, cable vault's locking structure；51, rocker arm；52, rocker cam；53, it hangs
Hook plate；54, cross bar；55, fixed plate；6, drive mechanism；61, rocking bar；611, slide opening；62, joint arm；621, cunning is convex；622, boss；
63, swingle；64, driving cam；641, countercheck rod；65, rocker cam；66, bracket.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
As depicted in figs. 1 and 2, five-prevention interlocking device includes earthing switch operating shaft 1, can by it is positive, rotate backward and make
Obtain earthing switch switch closing and switch opening；Rear door interlocking mechanism 2, in positive, the counter-rotational control of the earthing switch operating shaft 1
Under, drive back door to unlock or locking, and limit that be just able to rotate the earthing switch operating shaft 1 under the back door blocking right
Earthing switch closes a floodgate；Front gate interlocking mechanism 3, connect with circuit breaker chamber door and cable chamber door, passes through circuit breaker chamber door and cable vault
The unlatching of door is closed to control the unlatching and closure of the operation port for operating the earthing switch operating shaft 1；Handcart interlocking machine
Structure, connection circuit breaker cart 4 and the earthing switch operating shaft 1, the position by positioning circuit breaker cart 4 are opened to control ground connection
The operation for closing operating shaft 1 and handcart operation worm screw 45, so that described in the circuit breaker cart 4 could complete when be in testing position
The combined floodgate of earthing switch, and lock the circuit breaker cart 4；The earthing switch operating shaft 1 runs through the hands injured, and is arranged
Between the breaker chamber and cable vault；The rear door interlocking mechanism 2 and the front gate interlocking mechanism 3 are separately positioned on described
The both ends of earthing switch operating shaft 1.
It should be noted that rotate forward and rotate backward be for illustrate rotation contrary, the earthing switch
After the axial direction rotation of operation, opposite to that direction is as reversed.
Further, the rear door interlocking mechanism 2 includes with the earthing switch operating shaft 1 rotation, can lock the back door
Locking structure 22, and the first position limiting structure 21 that is mobile, allowing earthing switch operating shaft 1 to rotate that can offset with the back door.
Specifically, as shown in figure 3, the locking structure include setting in the earthing switch operating shaft 1 after described
The latch hook 221 of door one end, and the lockplate 222 for being fixed on the back door, being hooked suitable for the latch hook 221；The earthing switch
When operating shaft 1 rotates, the locking structure 22 can be rotated synchronously with the earthing switch operating shaft 1, and the earthing switch closes a floodgate,
The locking structure 22 unlocks, the grounding switch tripping, and the locking structure 22 locks；Above-mentioned locking structure connects described in guaranteeing
When ground switchs separating brake, back door locking can not open, ensure that the safety operation of rival car cabinet.
First position limiting structure 21 includes that the earthing switch operating shaft 1 is arranged in close to the bracket 211 at the back door,
It, can be under the action of the first resilient bias and back door described through the first gag lever post 213 being fixed on the bracket 211
The second gag lever post 212 of limiting slot 2121 is moved and formed on first gag lever post 213, and setting is operated in the earthing switch
On axis 1, it can be aligned when back door is closed with the limiting slot and can be by the position-limited wheel 215 of the limiting slot 2121；Above-mentioned
One position limiting structure is to compress second gag lever post 212 when closed using back door, so that the institute on second gag lever post 212
It states limiting slot 2121 to be aligned with the position-limited wheel 215, the earthing switch operating shaft 1 described in this way can pass through the first position limiting structure 21
Rotation, guarantee ability operational grounding must switch operating shaft under the rear door closure state.
In addition, in the present embodiment, being bolted to connection between the lockplate 222 and the back door, the spiral shell
Bolt is screwed from the back door to the lockplate 222, the earthing switch operating shaft 1 can not back door described in Unscrew when,
For emergency opening back door.
The working principle of the rear door interlocking mechanism are as follows:
When the back door is in close state, second gag lever post 212,212 phase of the second gag lever post can be squeezed
Compressive state is in first gag lever post 213, at this point, taking shape in the limiting slot 2121 of second gag lever post 212
It is aligned with the position-limited wheel 215, the 215 energy limiting slot 2121 of position-limited wheel passes through, in this way, when the earthing switch operates
Axis 1 rotates separating brake, and the latch hook 221 will rotate with the earthing switch operating shaft 1, is detached from the lockplate 222, it is described just
It can open；If the back door is in the open state, second gag lever post 212 will be sheathed on first gag lever post
It is returned to original state under the action of 213 elastic first bias piece, at this point, the limiting slot 2121 and the position-limited wheel
215 are misaligned, and when operating the earthing switch operating shaft 1, position-limited wheel 215 is stopped by second gag lever post 212, the ground connection
Switch operating shaft 1 can not rotate.
As shown in figure 4,3 earthing switch of front gate interlocking mechanism and the front gate interlocking mechanism 3 at front door include being arranged in institute
It states on the cabinet wall of hands injured, the first baffle 31 with the operation port 312 for operational grounding switch operating shaft 1 and described the
One baffle 31 cooperatively forms the second baffle 32 of accommodation space, is slidably set in the accommodation space, can open or close
The sliding part 33 of the operation port 312 is closed, and can be controlled respectively by positioning the state of the circuit breaker chamber door and cable chamber door
Make the second position limiting structure that the sliding part 33 slides；The circuit breaker chamber door and cable chamber door could be by the cunnings when being turned off
Moving part 33 slides, and then opens the operation port 312；The relatively described earthing switch operating shaft 1 of the operation port 312 is arranged, and fits
It is inserted into workpiece；The circuit breaker chamber door and cable chamber door can contact when closed with the first baffle 31, from connection institute
State the second position limiting structure.
Above-mentioned front gate interlocking mechanism 3 is matched by first baffle 31, second baffle 32, sliding part 33 and the second position limiting structure
The interlocking for realizing circuit breaker chamber door and cable chamber door and earthing switch is closed, only when the circuit breaker chamber door and cable chamber door are equal
When closing, i.e., with the circuit device room the second opposite position limiting structure of door and second position limiting structure opposite with the cable chamber door
When unlocking, ability operational grounding switchs operating shaft 1, closes a floodgate to earthing switch.
The sliding part 33 forms the hand for grasping, convenient for sliding the sliding part 33 at the operation port 312
Handle 332；Press down on, 33 slide downward of sliding part opens the operation port 312, lift upwards, the sliding part 33 to
The operation port 312 is closed in upper sliding.
Second position limiting structure includes the third limit knot for the state that can position the circuit breaker chamber door and cable chamber door
Structure, and with third position limiting structure cooperation, limit the 4th position limiting structure that the sliding part 33 slides.
Specifically, the third position limiting structure include take shape in the first baffle 31, respectively with the circuit breaker chamber door
The through-hole 311 opposite with cable chamber door, i.e., the described relatively described circuit breaker chamber door of first baffle 31 forms through-hole 311, described
The relatively described cable chamber door of first baffle 31 forms through-hole 311, and one is limited on the second baffle 32 by disconnecting prevention structure
Elastomer block 34 pass through the sliding part 33 and connect with the through-hole 311, it is elastic inclined that second is additionally provided in the elastomer block 34
Casting die, the elastomer block 34 inside retraction or inside and outside of the through-hole 311 relatively under the action of front door and the second resilient bias
It is prominent.
Above-mentioned third position limiting structure utilizes the elastomer block 34 and circuit breaker chamber door and cable across the through-hole 311
Room door connection will squeeze the elastomer block 34 inwardly retraction when circuit breaker chamber door, cable chamber door are closed, so that elastomer block 34
It is detached from the through-hole 311, limitation of the elastomer block 34 to the sliding part 33 is released, only when circuit breaker chamber door and cable vault
When door is turned off, i.e., and the corresponding elastomer block 34 of the circuit breaker chamber door and elastomer block 34 corresponding with the cable chamber door solves
Except the limitation to the sliding shoe, the sliding part 33 could slide downward.
In the present embodiment, the through-hole 311 is rectangular, and one end that the elastomer block 34 cooperates with the through-hole 311 is
Cuboid；Certainly, other shapes can also be set by the through-hole 311 with needs according to the actual situation in other embodiments,
The elastomer block 34 cooperates with the through-hole 311, and such as through-hole 311 is circle, and the elastomer block 34 is cylindrical body.
The limit that 4th position limiting structure includes the side for taking shape in the elastomer block 34, is connect with the sliding part 33
Block 341, and take shape in 33 side wall of sliding part, suitable for the limited block 341 insertion and mobile track 331 in it；Institute
State slideway include suitable for the limited block 341 with the elastomer block 34 the elastomer block 34 first moved in the radial direction
Track 3311, and the second slideway for allowing the sliding part 33 to slide up and down；The elastomer block 34 is in class T font.
In above structure, when the circuit breaker chamber door, cable chamber door in the open state, the opposite institute of the elastomer block 34
It states through-hole 311 to protrude outward, the limited block 341 is located in first track 3311 of the track 331, the limited block
341 and the part that is connect with the through-hole 311 of the elastomer block 34 limit the sliding of the sliding part 33 jointly, when described disconnected
When road device room, cable door room are closed, the elastomer block 34 is squeezed, and the relatively described through-hole 311 inwardly bounces back, the limited block
341 can move along first track 3311 to the direction far from the first baffle 31, enter second track 3312,
When the breaker chamber and cable chamber door are turned off, limited block 341 corresponding with the circuit breaker chamber door and the cable vault
The corresponding limited block 341 of door enters second track 3312, presses down on the sliding part 33, second track 3312
It will be moved down along the limited block 341.
The disconnecting prevention structure includes anti-being disengaged from the groove for taking shape in the elastomer block 34 and being pierced by described 32 one end of second baffle, and is inserted
Enter the anti-fastener 35 for being disengaged from the groove, the elastomer block 34 being prevented to be detached from, the fastener 35 is clip；Described in above structure
Fastener 35 can offset with the outer wall of the second baffle 32, and the elastomer block 34 is prevented to be detached from the second baffle 32.
Second resilient bias is arranged between the limited block 341 and second baffle 32.
The working principle of the front gate interlocking mechanism 3 is as follows:
When the circuit breaker cart 4 reaches testing position, the circuit breaker chamber door and cable chamber door army are closed, and it is described
The corresponding elastomer block 34 of circuit breaker chamber door, elastomer block 34 corresponding with the cable chamber door inwardly bounce back, described in disengaging
Through-hole 311, at this point, grasping the handle 332 presses down on the sliding part 33, the sliding part 33 is by the operation port 312
It opens, rotates the earthing switch operating shaft 1 using the workpiece, open the circuit device room door and cable chamber door, and by institute
Sliding part 33 is stated to lift upwards so that described resiliently return at the through-hole 311, the relatively described through-hole 311 of elastomer block 34 to
Outer protrusion.
In hands injured, the process of the power failure operation of breaker chamber are as follows: first by breaker open operation, then operate the handcart
Operation worm screw 45 shakes the circuit breaker cart 4 to testing position from operating position, then the earthing switch closes a floodgate, finally
Open the circuit breaker chamber door maintenance；The process of power transmission operation are as follows: first close the circuit breaker chamber door, then open the ground connection
Separating brake is closed, the circuit breaker cart 4 is then moved on into operating position from testing position, finally by the breaker closing.
As shown in fig. 6, the handcart interlocking mechanism include connect with earthing switch operating shaft 1, can be by the earthing switch
The torque of operating shaft 1 passes to the drive mechanism 6 of circuit breaker cart 4, connect with the drive mechanism 6, prevents the breaker
Handcart 4 is extracted the locking structure of the breaker chamber in grounding switch tripping, with locking structure linkage, prevents in institute
It states when earthing switch closes a floodgate and operates the limiting structure of the circuit breaker cart 4, and prevent circuit breaker cart 4 not in testing position
The location structure that the earthing switch closes a floodgate.
In the present embodiment, the circuit breaker cart 4, which is additionally provided with, can prevent the circuit breaker cart 4 from the breaker
The connect-disconnect structure that room slips；Specifically, the connect-disconnect structure include the two sides for being separately positioned on handcart operation worm screw 45, can
Opposite the first locking plate 41 and the second locking plate 43 being slidably connected is separately formed in the hands injured side wall, for described the
The first locking hole 49 and the second locking hole of one locking plate 41 and the insertion of the second locking plate 43, and be respectively used to keep described first
The shape that locking plate 41 is inserted into the state of first locking hole 49, second locking plate 43 is kept to be inserted into second locking hole
The first return unit and the second return unit of state；By first locking plate 41 and the second locking plate 43 mutually in pull, described first
Locking plate 41 and the second locking plate 43 are detached from first locking hole 49 and the second locking hole, 4 energy of circuit breaker cart respectively
It is drawn out the breaker chamber, decontrols first locking plate 41 and the second locking plate 43, first locking plate 41 and second
Locking plate 43 will be returned to reset condition under the action of the first return unit and the second return unit, i.e., by the circuit breaker cart
4 are put into the breaker chamber, and first locking plate 41 and the second locking plate 43 can be automatically inserted into first locking hole 49
With the second locking hole.
As shown in fig. 7, the drive mechanism 6 includes the rocking bar 61 for rotating and swinging with the earthing switch operating shaft 1,
The joint arm 62 rotated under the action of the rocking bar 61 is fixedly connected and with the joint arm 62 rotation with the joint arm 62
Swingle 63, and the driving cam 64 being connected at the position of the opposite third locking plate 46 of the swingle 63；Biography described above
Dynamic structure can accurately the movement of the earthing switch operating shaft 1 be transmitted to the circuit breaker cart 4, guarantee the earthing switch
The interlocking of operating shaft 1 and the circuit breaker cart 4；The rocking bar 61 is by being fixed on the rocking bar of the earthing switch operating shaft 1
Cam 65 is fixed on the earthing switch operating shaft 1；The swingle 63 is by being installed on the bracket 66 of the circuit breaker cart 4
The side of the circuit breaker cart 4 is set, and the swingle 63 is passed through from two stabilizer blades of the bracket 66, the bracket 66
It is fixed by bolts in the circuit breaker cart 4.
Above-mentioned drive mechanism is described to shake when the earthing switch operating shaft 1 rotates the progress earthing switch on/off switch
Bar 61 is swung up and down with the earthing switch operating shaft 1, and the rocking bar 61 drives the joint arm 62 to rotate, and the joint arm 62 drives
The swingle 63 rotates, so that the driving cam 64 rotates；When the earthing switch closes a floodgate, the driving cam
64 act on the third locking plate 46, and the third locking plate 46 inwardly bounces back, when the grounding switch tripping, the biography
Moving cam 64 is not connect with the third locking plate 46, and the third locking plate 46 is motionless；Drive mechanism described above can be accurate
The torque of the earthing switch operating shaft 1 be transmitted to the circuit breaker cart 4, guarantee the earthing switch operating shaft 1 and institute
State the interlocking of circuit breaker cart 4.
In addition, the cross section of the earthing switch operating shaft 1 be hexagon, the rocker cam 65 form with it is described
Hexagon ring of the earthing switch operating shaft 1 to adaptation.
In the present embodiment, connection structure, the connection structure packet are provided between the rocking bar 61 and the joint arm 62
Include and take shape in the slide opening 611 that the rocking bar connect one end, oblong with the joint arm 62, and take shape in 62 end of joint arm,
The cunning convex 621 that can be slided in the slide opening 611；Above-mentioned connection structure can be played the rotation of the earthing switch operating shaft 1
Torque and the rotation torque of the joint arm 62 be connected and the effect of transition.
In addition, the junction of the joint arm 62 and the swingle 63 forms and can increase the joint arm 62 and the rotation
The boss 622 of the connection area of bar 63；Above structure can increase the joint arm 62 be fixedly connected with the swingle 63 it is reliable
Property.
As shown in Figure 7 and Figure 8, the locking structure includes that the handcart of opposite circuit breaker cart 4 operates worm screw 45 slidably
The third locking plate 46 of connection, the driving cam setting of opposite drive mechanism takes shape in breaker chamber side wall, locks with the third
Only plate 46 is adapted to the third locking hole 47 of grafting, and the connection third locking plate 46 and breaker chamber side wall, make it is described
Third locking plate 46 is plugged in the third return unit of the third locking hole 47；When the grounding switch tripping, the third lock
Only plate 46 is inserted into the third locking hole 47 under the action of third return unit, when the earthing switch closes a floodgate, the third
Locking plate 56 is detached from the third locking hole 47 under the action of driving cam 65.
Above-mentioned locking structure utilizes the third locking plate 46, third locking hole 47 and third return unit by the breaker
Handcart 4 is locked in the breaker chamber, and the third locking plate 46 is inserted into described under the action of the third return unit
In third locking hole 47；When the earthing switch closes a floodgate, the connect-disconnect structure is not locked by the locking structure, is pulled to the left
First locking plate 41 and the second locking plate 43, the circuit breaker cart 4 can unlock, and pull out the circuit breaker cart
4 extract the circuit breaker cart 4 out the breaker chamber；When the grounding switch tripping, the connect-disconnect structure is by the lock
Only structure latches, can not pull first locking plate 41 and the second locking plate 43 to the left, and the circuit breaker cart 4 cannot be drawn
The breaker chamber out；The locking structure ensure that and only could draw the circuit breaker cart 4 after earthing switch combined floodgate
The breaker chamber out, securely and reliably.
The third locking plate 46 is arranged side by side with first locking plate 41.
As shown in Fig. 6, Figure 11 and Figure 14, the limiting structure includes taking shape in handcart operation worm screw 45 and described the
The limiting groove 451 of three locking plates, 46 junction takes shape in the third locking plate 46, allows the handcart operation worm screw 45 at it
First handle hole 461 of interior rotation process, and to moving to left under the action of the third locking plate 46 is in driving cam 64
Cooperate, limit the first limiting holes 462 of handcart operation 45 rotation process of worm screw when dynamic with the limiting groove 451；It is described to connect
When ground switch is in gate-dividing state, the locking structure locking, the third locking plate 46 is inserted in the third locking hole 47,
The limiting groove 451 is located in first handle hole 461, and the handcart operation worm screw 45 is able to rotate, at the earthing switch
When "on" position, the driving cam 64 unlocks the locking structure, and the third locking plate 46 is in the handcart
It is mobile to operate worm screw 45, the limiting groove 451 enters in first limiting holes 462, and the handcart operation worm screw 45 can not turn
It is dynamic.
In the present embodiment, as shown in Figures 12 and 13, first locking plate 41 and the second locking plate 43 are operated with handcart
Worm screw connection position at be provided with in the limiting structure first handle hole 461 and the first limiting holes it is corresponding
First circular hole 413 and the second limiting holes 414, the second circular hole 433 and third limiting holes 434.
The location structure includes that can protrude outward under the action of circuit breaker cart 4, in the work of the 4th return unit
With the lower positioning pin 44 inwardly replied, take shape in the third locking plate 46 and 44 junction of positioning pin, allow it is described fixed
Second handle hole 463 of the relatively described disengaging of third locking plate 46 movement of position pin 44, and in the positioning pin 44 and the open circuit
Device handcart 4 is allowed the third locking plate 46 to be moved to the left, is not connected with the circuit breaker cart 4 in the positioning pin 44 when offseting
The third handle hole 464 for preventing the third locking plate 46 to be moved to the left when connecing；The relatively described breaker hand of the positioning pin 44
It is moved inside and outside vehicle 4.
In above-mentioned location structure, the positioning pin 44, the 4th return unit, circuit breaker cart 4 and third locking plate 46 it
Between mutual cooperation, when the circuit breaker cart 4 is located at operating position, the circuit breaker cart 4 not with the positioning pin 44
Connection, at this point, the positioning pin 44, which is inserted into second handle hole 463 under the action of four return unit, limits institute
It states third locking plate 46 to be moved to the left, the earthing switch can not close a floodgate；When the circuit breaker cart 4 is in testing position, institute
It states positioning pin 44 and when the circuit breaker cart 4 offsets, the positioning pin 44 is protruded outward, and the driving cam 64 can make described
Third locking plate 46 is mobile；The circuit breaker cart 4 not in testing position, the positioning pin 44 not with the circuit breaker cart
4 contacts, are inwardly returned to nature under the action of four return unit, so that the third locking plate 46 can not move
It is dynamic.
Said structure design is ingenious, securely and reliably, guarantees the circuit breaker cart 4 at operating position, the ground connection is opened
Pass cannot close a floodgate, and prevent maloperation.
As shown in Figure 10 and Figure 11, the positioning pin 44 is multiple including the 4th can be connect, be provided with the circuit breaker cart 4
The first part 441 of position part, is connected to one end far from the circuit breaker cart 4 of the first part 441, can be described second
The second part 442 moved in handle hole 463, and one of the second part 442 far from the first part 441 is set
The Part III 443 held, can prevent the positioning pin 44 from deviating from the third locking plate 46；4th return unit can prevent institute
It states to deviate from when positioning pin 44 protrudes outward from the second handle hole 463, i.e. the 4th return unit, which both plays, replys the positioning pin 44
Effect, and play the role of preventing from falling off, under the action of the 4th return unit and Part III 443, the positioning pin
44 are fixed on the third locking plate 36.
The first part 441 of above structure can be between second handle hole 463 and third handle hole 464 freely
Switching, when the positioning pin 44 protrudes outward, the first part 441 enters second handle hole 463, at this point, described
Third locking plate 46 can be moved to the left；The second part 442 is adapted to second handle hole 463, when described second
Points 442 when being inserted into second handle hole 463, and the positioning pin 44 not can enter the third handle hole 464, the third
Locking plate 46 cannot be moved to the left；It is described fixed that the Part III 443 can prevent the positioning pin 44 from preventing in inside reply
Position pin 44 deviates from second handle hole 463；Above-mentioned positioning pin under the action of the circuit breaker cart 4 and four return units,
By the first part 441 and second part 442 in the conversion of second handle hole 463, enable the positioning pin 44
The movement of the third locking plate 46 is limited, so that the circuit breaker cart 4 and the earthing switch generate interlocking.
As shown in Figure 12 and Figure 13, the positioning pin 44 is arranged in first locking plate 41, second locking plate 43
With the junction of the third locking plate 46, first locking plate 41 is provided with second suitable for the receiving positioning pin 44
Divide 442 the 4th handle hole 411 and limits the 5th handle hole 412 of the movement of the first locking plate 41, second locking plate
43 are provided with the 6th handle hole 431 of the second part 442 for being suitable for accommodating the positioning pin 44 and limit second locking plate
43 the 7th mobile handle holes 432.
Above structure can make first locking plate 41, the second locking plate 43 generate interlocking with the earthing switch, work as institute
When stating the unlock of third locking plate 46, first locking plate 41 and the second locking plate 43 are also unlocked, and inwardly pull first lock
Only plate 41 and the second locking plate 43, the first part 441 of the positioning pin 44 is from the described 4th on first locking plate 41
Handle hole 411 enters the 5th handle hole 412, enters described the from the 6th handle hole 431 of second locking plate 43
Seven handle holes 432；When the third locking plate 46 is limited, the second part 442 of the positioning pin 44 also inserts simultaneously
In the 4th handle hole 411 and the 6th handle hole 431, so that first locking plate 41 and the second locking plate 46 are also limited
System；In this way, when the circuit breaker cart 4 is located at operating position, first locking plate 41 and the second locking plate 43 cannot be to
Interior sliding can not extract the circuit breaker cart 4 out breaker chamber, ensure that the safety operation of the hands injured.
As shown in figs. 5 and 9, the driving cam 64 and the operation that the earthing switch operating shaft 1 can be opened and closed
Barrier structure is provided between the sliding part 33 of mouth 312, the barrier structure and the third locking plate 46 cooperate, described disconnected
When road device handcart 4 is not moved to testing position, the barrier structure can stop 33 slide downward of sliding part to expose the behaviour
Make mouth 312；The barrier structure includes the countercheck rod 641 that is set to the driving cam 64, can connect with the sliding part 33；
The countercheck rod 641 is arranged in the driving cam 64 and is in when naturally drooping state close to the side of the sliding part 33.
Above-mentioned barrier structure prevents the sliding using the countercheck rod 641 on the third locking plate 46 and driving cam 64
The slide downward when the circuit breaker cart 4 is in testing position of part 33, so that the behaviour for operating the earthing switch operating shaft 1
Make the exposing of mouth 312, when the circuit breaker cart 4 is not moved to testing position from operating position, i.e., the described earthing switch, which is in, to be divided
Lock state, the third locking plate 46 are locked by the location structure, and the third locking plate 46 can not move, at this point, downwards
The sliding part 33 is pressed, the countercheck rod 641 is connect with the sliding part 33, and the driving cam 64 is far from the countercheck rod
641 one end offsets with the third locking plate 46, and the third locking plate 46 prevents the driving cam 64 from continuing to rotate, and makes
The sliding part 33 also can not slide downward, and then the operation port 312 can not be opened, and the earthing switch conjunction can not be carried out
Lock；Above structure guarantee only when the circuit breaker cart 4 is shaken to testing position could operational grounding switch operating shaft 1 into
The combined floodgate of the row earthing switch.
In addition, being provided with hand handle 42 on first locking plate 41 and the second locking plate 43；Above structure be for the ease of
It holds and operates first locking plate 41 and the second locking plate 43.
The outside of first locking plate 41 is arranged in the third locking plate 46；The third locking plate 46 is relatively described
It is provided at the hand handle 42 of first locking plate 41 suitable for the movable loose slot 48 of the hand handle 42；Particularly, the activity
The length dimension of slot 48 is not less than the moving distance size of first locking plate 41, described when locking structure locking
Hand handle 42 is located at one end close to handcart operation worm screw 45 of the loose slot 48, and the hand handle 42 is without handcart described in normal direction
It operates worm screw 45 to pull, when locking structure unlock, the hand handle 42 is located at the separate handcart of the loose slot 48
One end of worm screw 45 is operated, the hand handle 42 can operate worm screw 45 to the handcart and pull；The hand handle 42 described in this way can with it is described
Locking structure cooperation.
One end that the third locking plate 46 is connect with the driving cam 64 is formed to be cooperated with the driving cam 64
Inclined-plane；Above structure is to act on the third locking plate 46 for convenience of the driving cam 64.
The working principle of the handcart interlocking mechanism is as follows:
The circuit breaker cart 4 is moved to the testing position from the operating position, described in the location structure
Positioning pin 44 protrudes outward second handle hole 463 under the action of circuit breaker cart 4, and the third locking plate 46 solves
Lock is removable, at this point, the third locking plate 46 can not withstand the driving cam 64, presses down on the sliding part 33, institute
It states sliding part 33 to move down, exposes the operation port 312, the earthing switch is closed in the rotation of earthing switch operating shaft 1
When lock, the rocking bar 61 of the drive mechanism 6 in the handcart interlocking mechanism can also be rotated with it, to drive the rotation
Bull stick 63 rotates, so that the third in the driving cam 64 being connected on the swingle 63 and the locking structure
Locking plate 46 offsets, and the third locking plate 46 is pushed to handcart operation 45 direction of worm screw, the third locking plate
The 46 abjection third locking holes 47, in this way, inwardly pulling first locking plate 41 and 43 energy of the second locking plate will be described
Circuit breaker cart 4 extracts the breaker chamber out, meanwhile, first limiting holes 462 are also mobile to handcart operation worm screw 45,
The limiting groove 451 is entered in first limiting holes 462 by first handle hole 461, and the handcart operates 45 quilt of worm screw
Locking, can not rotate；When the rotation of earthing switch operating shaft 1 is by the grounding switch tripping, the rocking bar 61 is rotated, and drives
The driving cam 64 on the swingle 63 and the swingle 63 rotates, the driving cam 64 away from keyboard described the
Three locking plates 46 do not offset with the third locking plate 46, and the third locking plate 46 moves under the action of third return unit,
It is inserted into the third locking hole 47, meanwhile, the positioning pin 44 is inwardly returned under the action of four return unit
Nature, the third locking plate 46 is locked, and first locking plate 41 and the second locking plate 43 cannot be pulled inwardly, then
The circuit breaker cart 4 can not be extracted the breaker chamber, meanwhile, the limiting groove 451 of the handcart operation worm screw 45
Entered in first handle hole 461 by first limiting holes 462, rotating the handcart operation worm screw 45 can state described
Circuit breaker cart 4 moves on to operating position from testing position, and the driving cam 64 is under the cooperation of the third locking plate 46,
The countercheck rod 641 of the driving cam 64 can prevent 33 slide downward of sliding part that the operation port 312 is exposed,
In the circuit breaker cart 4 not in the testing position, the sliding part 33. can not be slided
Above-mentioned handcart interlocking mechanism is safe and reliable, by the cooperation between multiple structures, can effectively prevent described disconnected
When road device handcart 4 does not reach testing position, the earthing switch operating shaft 1 closes a floodgate to earthing switch, and can prevent in institute
When stating earthing switch combined floodgate, operates the mobile circuit breaker cart 4 of handcart operation worm screw 45 and carry out breaker closing, and
When preventing the grounding switch tripping, the circuit breaker cart 4 can be pulled out the breaker chamber.
As shown in figure 15, in the present embodiment, energy is provided between the earthing switch operating shaft 1 and the cable chamber door
The cable vault's locking structure 5 that can be simultaneously locked the cable chamber door in the grounding switch tripping, cable vault's locking
Structure 5 includes the Rocker arm 51 rotated with the earthing switch operating shaft 1, and swings, forms and be fixed on the Rocker arm 51
The Rocker arm 51 for the hook that the cross bar 54 of the cable chamber door connects, the cross bar 54 are fixed on the cable vault by fixed plate 55
Men Shang；The Rocker arm 51 is connected to the earthing switch operating shaft 1 by rocker cam 52, and the Rocker arm 51 is opened with the ground connection
Operating shaft 1 is closed to swing up and down.
In addition, in the present embodiment, first return unit, the second return unit, third return unit and the 4th return unit are
Tension spring, first resilient bias and the second resilient bias are pressure spring.
The working principle of the five-prevention interlocking device is as follows:
When carrying out enabling maintenance to the hands injured, the circuit breaker chamber door, cable chamber door and back door are in closing shape
State, at this point, the front gate interlocking mechanism 3 unlocks, first position limiting structure 21 of the rear door interlocking mechanism 2 is also unlocked, first
First to breaker open operation, using the operation worm screw 45 of handcart described in the workpiece rotation by the circuit breaker cart 4 from operating position
It is moved to testing position, at this point, the location structure of the circuit breaker cart 4 unlocks, the third locking plate 46 is allowed to move
Dynamic, the barrier structure also unlocks, and the countercheck rod 641 allows the sliding part 33 mobile, then presses the handle 332,
33 slide downward of sliding part, exposes the operation port 312, and the earthing switch operating shaft 1 in rotation process mouth 312 is connect
Ground switch closes a floodgate, at this point, the drive mechanism 6 pushes the third locking plate 46 mobile to handcart operation worm screw 45, takes off
From the third locking hole 47, the connect-disconnect structure unlock holds the hand handle 42 to centre and pulls first locking plate 41
The circuit breaker cart 4 can pull out to the breaker chamber with the second locking plate 43, while the limiting structure is by the hand
Vehicle operates worm screw 45 and locks, and the handcart operation worm screw 45 can not be rotated, and then, opens the circuit breaker chamber door, cable
Room door and back door are overhauled, and the sliding part 33 is slid up shifting and is returned to initial position, and the elastomer block is led to from described
Hole protrusion, the sliding part 33 cover the operation port 312.
After the completion of maintenance, it is first shut off the circuit breaker chamber door, cable chamber door and back door, the front gate interlocking mechanism 3 solves
Lock, first position limiting structure 21 of the rear door interlocking mechanism 2 also unlock, and then, press the handle 332, the sliding
33 slide downward of part exposes the operation port 312, and the earthing switch operating shaft 1 in rotation process mouth 312 carries out earthing switch point
Lock, and the sliding part 33 is resetted, at this point, the drive mechanism 6 in the handcart interlocking mechanism temporarily with the locking
Structure separation, the third locking plate 46 are inserted into the third locking hole 47, and the connect-disconnect structure is locked by the locking structure
Fixed, the circuit breaker cart 4 can not be pulled out breaker chamber, while the limiting structure solves handcart operation worm screw 45
Lock enables the handcart operation worm screw 45 to rotate, and then, worm screw 45 is operated using handcart described in workpiece rotation, by the open circuit
Device handcart 4 shakes from testing position to operating position, meanwhile, the location structure in the handcart interlocking mechanism inwardly replys lock
Fixed, the third locking plate is immovable, and the countercheck rod 641 can stop 33 slide downward of sliding part, finally, carrying out institute
State breaker closing.
Above-mentioned five-prevention interlocking device using the front gate interlocking mechanism, rear door interlocking mechanism and handcart interlocking mechanism respectively with
Interaction relation occurs for the earthing switch operating shaft, so that the circuit breaker chamber door, cable chamber door and back door are turned off under state
The earthing switch operating shaft 1 could be operated, separating brake and combined floodgate are carried out to the earthing switch, the circuit breaker cart 4 is in examination
When testing position could operational grounding switch operating shaft close a floodgate to the earthing switch and extract the circuit breaker cart 4 out
The breaker chamber, and the earthing switch close a floodgate after can not shake circuit breaker cart 4 into operating position, it is anti-to reach five
It is required that substantially increasing the security performance of hands injured.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (11)
1. a kind of handcart interlocking mechanism of five-prevention interlocking device, which is characterized in that including being connect with earthing switch operating shaft (1),
The drive mechanism (6) that the torque of the earthing switch operating shaft can be passed to circuit breaker cart (4), with the drive mechanism
(6) locking structure for connecting, the circuit breaker cart (4) being prevented to be extracted breaker chamber in grounding switch tripping, with described
Locking structure linkage prevents from operating the limiting structure of the circuit breaker cart (4) when the earthing switch closes a floodgate, and prevents from breaking
Road device handcart (4) location structure that the earthing switch closes a floodgate not in testing position.
2. the handcart interlocking mechanism of five-prevention interlocking device according to claim 1, which is characterized in that the drive mechanism
(6) include the rocking bar (61) for rotating and swinging with the earthing switch operating shaft (1), carried out under the action of the rocking bar (61)
The joint arm (62) of rotation is fixedly connected and with the swingle (63) that the joint arm (62) rotate, and connection with the joint arm (62)
Driving cam (64) at the position of the swingle (63) with respect to third locking plate (46).
3. the handcart interlocking mechanism of five-prevention interlocking device according to claim 2, which is characterized in that the locking structure packet
The driving cam (64) of handcart operation worm screw (45) slidable connection, opposite drive mechanism for including opposite circuit breaker cart (4) is set
The third locking plate (46) set takes shape in breaker chamber side wall, is adapted to the third locking of grafting with the third locking plate (46)
Hole (47), and connect the third locking plate (46) and breaker chamber side wall, the third locking plate (46) is plugged in
The third return unit of the third locking hole (47).
4. the handcart interlocking mechanism of five-prevention interlocking device according to claim 3, which is characterized in that the limiting structure packet
The limiting groove (451) for taking shape in handcart operation worm screw (45) and third locking plate (46) junction is included, institute is taken shape in
The first handle hole (461) stated third locking plate (46), allow handcart operation worm screw (45) rotation process in it, and
Cooperate when the third locking plate (46) is moved to the left under the action of the driving cam (64) with the limiting groove (451),
Limit first limiting holes (462) of described handcart operation worm screw (45) rotation process.
5. the handcart interlocking mechanism of five-prevention interlocking device according to claim 3, which is characterized in that the location structure packet
Include the positioning pin that can be protruded outward, inwardly reply under the action of four return units under the action of the circuit breaker cart (4)
(44), the third locking plate (46) and the positioning pin (44) junction are taken shape in, allows the positioning pin (44) with respect to institute
The second handle hole (463) of third locking plate (46) disengaging movement is stated, and in the positioning pin (44) and the circuit breaker cart
(4) the third locking plate (46) is allowed to be moved to the left when offseting, the positioning pin (44) not with the circuit breaker cart (4)
The third handle hole (464) for preventing the third locking plate (46) to be moved to the left when connection.
6. the handcart interlocking mechanism of five-prevention interlocking device according to claim 5, which is characterized in that the drive mechanism
(6) having between the driving cam (64) and sliding part (33) can prevent the earthing switch in the circuit breaker cart
(4) barrier structure to close a floodgate when not reaching testing position.
7. the handcart interlocking mechanism of five-prevention interlocking device according to claim 6, which is characterized in that the barrier structure packet
Include the countercheck rod (641) that is set to the driving cam (64), can connect with the upper wall of the sliding part (33)；The countercheck rod
(641) sliding part (33) sliding is limited under the cooperation of the third locking plate (46).
8. the handcart interlocking mechanism of five-prevention interlocking device according to claim 4, which is characterized in that the circuit breaker cart
(4) circuit breaker cart (4) can be fixed on the indoor plug knot of the breaker by being provided between the breaker chamber
Structure.
9. the handcart interlocking mechanism of five-prevention interlocking device according to claim 8, which is characterized in that the connect-disconnect structure packet
The first locking plate (41) and the second locking plate (43) for being slidably connected to handcart operation worm screw (45) two sides respectively are included, respectively
Take shape at the position of relatively described first locking plate of the breaker chamber inner wall and the second locking plate, with first locking plate
With the first locking hole and the second locking hole of the cooperation of the second locking plate, first locking plate is kept under the effect of the first return unit
It is inserted into the state of first locking hole, second locking plate keeps being inserted into second locking under the effect of the second return unit
The state in hole；By first locking plate (41) and the second locking plate (43) mutually in pull so that first locking plate and the
Two locking plates are detached from first locking hole and the second locking hole respectively, and the circuit breaker cart (4) can be drawn out the open circuit
Device room.
10. the handcart interlocking mechanism of five-prevention interlocking device according to claim 9, which is characterized in that first locking
The hand handle (42) for grasping is provided on plate (41) and the second locking plate (43).
11. the handcart interlocking mechanism of five-prevention interlocking device according to claim 10, which is characterized in that the third locking
The loose slot (48) mobile suitable for the hand handle (42) is formed on plate (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037837.8A CN109066439B (en) | 2018-09-06 | 2018-09-06 | Handcart interlocking mechanism of five-prevention interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037837.8A CN109066439B (en) | 2018-09-06 | 2018-09-06 | Handcart interlocking mechanism of five-prevention interlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066439A true CN109066439A (en) | 2018-12-21 |
| CN109066439B CN109066439B (en) | 2023-11-21 |
Family
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Family Applications (1)
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| CN201811037837.8A Active CN109066439B (en) | 2018-09-06 | 2018-09-06 | Handcart interlocking mechanism of five-prevention interlocking device |
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Cited By (4)
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| CN111668062A (en) * | 2019-03-06 | 2020-09-15 | Ls产电株式会社 | Distribution box |
| CN112928685A (en) * | 2021-03-05 | 2021-06-08 | 四川秦巴电气有限责任公司 | Circuit breaker handcart interlocking mechanism |
| CN113013769A (en) * | 2021-01-27 | 2021-06-22 | 许继电气股份有限公司 | Breaker handcart propulsion device with buckle device |
| CN113488867A (en) * | 2021-05-24 | 2021-10-08 | 四川汉舟电气股份有限公司 | Door interlocking device of high-voltage board |
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| CN112928685B (en) * | 2021-03-05 | 2023-02-21 | 四川秦巴电气有限责任公司 | Circuit breaker handcart interlocking mechanism |
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| CN113488867B (en) * | 2021-05-24 | 2023-07-21 | 四川汉舟电气股份有限公司 | Door interlocking device of high-voltage board |
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| CN109066439B (en) | 2023-11-21 |
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