CN106848900B - Front door of switch cabinet locking device and the switchgear for using the locking device - Google Patents
Front door of switch cabinet locking device and the switchgear for using the locking device Download PDFInfo
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- CN106848900B CN106848900B CN201710128328.5A CN201710128328A CN106848900B CN 106848900 B CN106848900 B CN 106848900B CN 201710128328 A CN201710128328 A CN 201710128328A CN 106848900 B CN106848900 B CN 106848900B
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- unlocking
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- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 230000005484 gravity Effects 0.000 claims abstract description 13
- 230000002441 reversible effect Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 121
- 230000000694 effects Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000008092 positive effect Effects 0.000 claims description 4
- 230000008450 motivation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The present invention relates to a kind of front door of switch cabinet locking device and use the switchgear of the locking device, switchgear includes cabinet body and front door, being equipped in cabinet body can be back into cabinet body and the breaker that can exit from cabinet body forward, switchgear further includes the locking device for carrying out locking to front door, locking device includes the lock being arranged on front door and locking-unlocking mechanism for being arranged in cabinet body, locking-unlocking mechanism includes the lock tongue that reciprocating movement is assemblied in cabinet body, the reciprocating movement stroke of lock tongue includes positive locking stroke and reversed unlock stroke, it is positive movable with hook corresponding with lock cooperation that lock tongue relies on the elastic acting force that gravity and/or elastic mechanism apply on its positive locking stroke, lock tongue is unlocked on its reversed unlock stroke by the breaker driving reverse activity moved from back to front with disengaging with the lock.Due to carrying out locking not against breaker, locking-unlocking mechanism does not need to be made big, and occupied space is smaller, and structure is simple.
Description
Technical field
The present invention relates to a kind of front door of switch cabinet locking device and use the switchgear of the locking device.
Background technique
According to the anti-requirement of Medium voltage switch or circuit breaker cabinet equipment five, mistakenly entering charged chamber is prevented, 35kV medium voltage switchgear equipment is metal armour
Dress enclosed construction needs to control the removable interlocked control for opening component of cabinet body, in switchgear in the operational process of switchgear
When breaker is in operating position, breaker chamber forms conducting circuit, in this state, if opening circuit breaker chamber door, deposits
In the danger of mistakenly entering charged chamber.
At present in the high-tension switch cabinet of industry, mostly without designing the displacement when breaker in testing position and operating position
, there is the risk for opening by mistake and opening in the structure controlled when conversion the switch operation of front door of switch cabinet.There are a small number of manufacturers pair
The design method of mistakenly entering into charged breaker chamber is using switch cabinet shutter interlock, in the row of breaker and valve interlocking mechanism
It carries out installing interlocking in journey additional, realizes the interlocked control to front door of switch cabinet, this set interlock and valve interlock one, knot
Structure is complicated, and two sets of interlocks have transmission restricting relation, and reliability is not high, exists and influences each other, meanwhile, this set interlock
In interior of the cabinet, emergency release cannot achieve on the outside of cabinet body.
A kind of handcart switch cabinet is disclosed in the Chinese utility model patent that Authorization Notice No. is CN201887366U
Breaker and front door interlocking mechanism, including the lock for being arranged on front door and the fixation for being arranged in cabinet body
Block is rotatably equipped with hook on fixed block, links up with the gib head having for grafting corresponding with lock, with straight bar section on hook,
Straight bar section is used to cooperate with breaker, and when breaker moves into operating position from the front to the back, breaker presses straight-bar upwards
Section forces hook to rotate, so that the inserting corresponding with the lock on front door of the gib head of hook front end, realizes the locking to front door, and
When breaker moves from the front to the back, the no longer upward pushing tow straight bar section of breaker, under straight bar section self gravitation effect, hook is anti-
To gib head and lock disengagement is rotated such that, unlock is realized.
This interlocking mechanism is relatively simple, but must press by breaker as locking-tripper hook ability
Realize locking, this just needs to be configured as locking-tripper hook structure, length according to breaker operating position, protects
Demonstrate,prove the locking to hook.Since to enter the operating position in cabinet body more inner for breaker, this make hook need to be designed compared with
Long, in 600mm or so, rotation, rotation space is larger as 35kV switchgear stroke, is easy to be interfered, and keeps hook straight
If dynamic progress locking, unlock, it is necessary to configure rotating drive mechanism in addition to realize the locking to hook, unlock, cause whole
A locking-tripper structure can be more complicated.
Summary of the invention
The present invention provides a kind of front door of switch cabinet locking device, must be by open circuit to solve interlock in the prior art
The technical issues of device press is just able to achieve locking as locking-tripper hook；Meanwhile the present invention also provides a kind of uses
The switchgear of above-mentioned locking device.
The technical solution of front door of switch cabinet locking device provided by the present invention is: a kind of front door of switch cabinet locking device,
Including the lock for being arranged on cabinet body front door and locking-unlocking mechanism for being arranged in switchgear, the locking-solution
Latch mechanism includes the lock tongue being assemblied in switchgear for reciprocating movement, and the reciprocating movement stroke of lock tongue includes positive locking stroke
With reversed unlock stroke, the lock tongue elastic acting force that dependence gravity and/or elastic mechanism apply on its positive locking stroke is just
Cooperated to activity with hook corresponding with the lock, lock tongue is on its reversed unlock stroke for by moving from back to front in switchgear
Dynamic breaker driving reverse activity is unlocked with disengaging with the lock.
Locking-the unlocking mechanism includes the unlocking arm for rolling assembling in switchgear, the reciprocating rotation of unlocking arm
Stroke includes the positive evacuation stroke swung backward and the reversed pushing tow stroke swung forward, unlocking arm have it is facing forward be used for by
The breaker pushing tow in access switch cabinet avoids face with the preceding pushing tow for forcing unlocking arm to swing backward from front to back, and unlocking arm also has
Have backwards for by moving from back to front breaker pushing tow with force unlocking arm swings forward in turn drive the lock tongue to exist
The rear pushing tow solution locking face moved on reversed unlock stroke.
Locking-the unlocking mechanism further includes the intermediate transmission arm for rolling assembling in switchgear, intermediate transmission arm
With the driving portion for driving the lock tongue reciprocating movement during its reciprocating rotation, intermediate transmission arm is rotated forward to pass through
It is movable on positive locking stroke to state driving portion driving lock tongue, intermediate transmission arm is rotated backward through driving portion driving institute
State lock tongue activity on reversely unlock stroke, unlocking arm is connect by one-way clutch transmission mechanism with intermediate transmission arm, unidirectionally from
It closes transmission mechanism and is in engagement state when unlocking arm is located on reversed pushing tow stroke with anti-by unlocking arm driving intermediate transmission arm
To rotation, one-way clutch transmission mechanism is in disengaged condition when unlocking arm is located on positive evacuation stroke.
The center of rotation axis of the intermediate transmission arm and the center of rotation axis of unlocking arm are coaxial, and the one-way clutch passes
Motivation structure includes the transmission pushing tow face towards the unlocking arm that the intermediate transmission arm is equipped with, and the unlocking arm, which has, to be solved
Hammerlock is in pushing tow when on reversed pushing tow stroke and is driven pushing tow face to drive intermediate transmission arm to rotate backward, in unlocking arm in just
The transmission pushing tow face is avoided so that one-way clutch transmission mechanism is in the unidirectional pushing tow of disengaged condition when on evacuation stroke
Portion.
Front door of switch cabinet locking device further include for the rear pushing tow unlock emaciated face in breaker and the unlocking arm from when
Drive the counter-rotational emergent unlocking structure of intermediate transmission arm.
The lock tongue is to be assemblied in the limit plate in switchgear for guiding movement along the vertical direction, which is equipped with
It vertically extends and with the driving portion inserting of the intermediate transmission arm so that the driving portion of limit plate and intermediate transmission arm
Form the guide chute of crank block slider structure.
The technical solution of switchgear provided by the present invention using above-mentioned locking device is: a kind of switchgear, including cabinet
Body and front door, being equipped in cabinet body can be back into cabinet body and the breaker that can exit from cabinet body forward, switchgear further include
For carrying out the locking device of locking to front door, locking device includes the lock being arranged on front door and the lock that is arranged in cabinet body
Only-unlocking mechanism, the locking-unlocking mechanism include the lock tongue that reciprocating movement is assemblied in cabinet body, the reciprocating movement row of lock tongue
Journey includes positive locking stroke and reversed unlock stroke, and lock tongue relies on gravity and/or elastic mechanism on its positive locking stroke
The positive activity of the elastic acting force of application is cooperated with hooks corresponding with the lock, and lock tongue reversely unlocks on stroke at it by from rear
The breaker driving reverse activity of forward movement is unlocked with disengaging with the lock.
Locking-the unlocking mechanism includes unlocking arm of the rolling assembling in cabinet body, the reciprocating rotation stroke packet of unlocking arm
The positive evacuation stroke swung backward and the reversed pushing tow stroke swung forward are included, unlocking arm has facing forward be used for by Xiang Houjin
The preceding pushing tow evacuation face for entering the breaker pushing tow in cabinet body to force unlocking arm to swing backward, unlocking arm also have being used for backwards
By the breaker pushing tow moved from back to front to force unlocking arm to swing forward and then drive the lock tongue in reversely unlock stroke
The rear pushing tow solution locking face of upper movement.
Locking-the unlocking mechanism further includes intermediate transmission arm of the rolling assembling in cabinet body, and intermediate transmission arm has
The driving portion of the lock tongue reciprocating movement is driven during its reciprocating rotation, intermediate transmission arm is rotated forward through the driving
Portion drives lock tongue movable on positive locking stroke, and intermediate transmission arm is rotated backward to drive the lock tongue by the driving portion
The activity on reversely unlock stroke, unlocking arm are connect by one-way clutch transmission mechanism with intermediate transmission arm, one-way clutch transmission
Mechanism when unlocking arm is located on reversed pushing tow stroke in engagement state with by unlocking arm driving intermediate transmission arm rotate backward,
One-way clutch transmission mechanism is in disengaged condition when unlocking arm is located on positive evacuation stroke.
The locking device further include for the rear pushing tow of breaker and unlocking arm unlock emaciated face from when driving in
Between the counter-rotational emergent unlocking structure of transmission arm.
The beneficial effects of the present invention are: in front door of switch cabinet locking device provided by the present invention, locking-unlocking mechanism
Lock tongue is realized locking, is moved back in breaker by the elastic reaction hook cooperation corresponding with lock of gravity and/or elastic mechanism
When dynamic, lock tongue can be driven to move on its reversed unlock stroke to disengage with lock, realize unlock.Due to can rely on gravity and/
Or the elastic acting force that elastic mechanism provides realizes locking, does not need to carry out locking to locking-unlocking mechanism by breaker, this
Sample is arranged in the breaker operating position at interior of the cabinet deep place, will not cause unexpected influence to locking-unlocking mechanism,
Locking-unlocking mechanism does not need to be made big or very complicated, and occupied space is relatively small, and structure is also by a relatively simple.
Further, locking-unlocking mechanism includes unlocking arm of the rolling assembling in switch cabinet body, unlocking arm it is reciprocal
Rotational travel includes the positive evacuation stroke swung backward and the reversed pushing tow stroke swung forward, the breaker in switchgear to
Preceding pushing tow when entering in cabinet body on pushing tow unlocking arm is moved afterwards and avoids face, and unlocking arm is forced to swing backward into positive evacuation
Stroke, and when breaker moves from the front to the back, breaker can rear pushing tow solution locking face on pushing tow unlocking arm, force unlocking arm to
Before swing into reversed pushing tow stroke, by unlocking arm driving lock tongue reversely unlock stroke on reverse activity with realize unlock, knot
Structure is relatively simple, easy to use.
Further, locking-unlocking mechanism further includes intermediate transmission arm, and the intermediate transmission arm rotated forward is passed by intermediate
Driving portion driving lock tongue on swing arm is movable on positive locking stroke, and counter-rotational intermediate transmission arm passes through intermediate transmission arm
On the activity on reversely unlock stroke of driving portion driving keyed, elastic mechanism is arranged in corresponding intermediate transmission arm, by elastic mechanism
Apply the active force for forcing it to rotate forward to intermediate transmission arm, to guarantee lock tongue and latch effective locking, one-way clutch transmission
Mechanism is under the premise of guaranteeing that the breaker moved forward can force lock tongue normal release by unlocking arm, intermediate transmission arm, also
So that breaker only needs to overcome the rotation of unlocking arm can be in the cabinet body of access switch cabinet, resistance is smaller, facilitates entrance.
Further, the driving portion of limit plate and intermediate transmission arm forms crank block slider structure, can reduce intermediate transmission arm
Rotational angle when being unlocked, locking operating, reduces locking-unlocking mechanism the space occupied.
Further, locking is carried out to it since locking-unlocking mechanism does not need breaker, can use setting in this way and exists
Emergency unlocking mechanism driving intermediate transmission arm on cabinet body is rotated backward to drive lock tongue and lock to disengage unlock, improves entire lock
Determine the safety of device.
Further, it since the hinge that front door usually utilizes side to arrange realizes folding, since front door is heavier, is easy to appear
The problem of arrisdefect moves down, due in fixed plate in lock tongue arranged beneath cross-brace plate section, also, latch towards in cabinet body
The one end in portion has lead-in chamfered, and so, before being turned off when door, even the problem of arrisdefect moves down occurs in front door, can also
Using the cooperation of lead-in chamfered and cross-brace plate section, it will be latched using cross-brace plate section and be lifted up together with front door, guaranteed
The normal switching-off at front door.
Detailed description of the invention
Fig. 1 be a kind of embodiment of switchgear provided by the present invention structural schematic diagram (breaker is in operating position,
Front door locking device is in the locked position)；
Fig. 2 is that (front door locking device is in solution for schematic diagram when breaker in switchgear shown in Fig. 1 is in testing position
Lock position)；
Fig. 3 is the perspective view of front door locking device in Fig. 1；
Fig. 4 is the structural schematic diagram of the unlocking arm in Fig. 3；
Fig. 5 is the structural schematic diagram of intermediate transmission arm in Fig. 3；
Fig. 6 is the variable condition figure of unlocking arm and intermediate transmission arm in breaker access switch cabinet from the front to the back in Fig. 3
(dotted line indicates that unlocking arm is located in positive evacuation stroke in figure)；
Fig. 7 is that unlocking arm and intermediate transmission arm move from the front to the back to drive locking-unlocking mechanism solution in breaker in Fig. 3
The variable condition figure of lock (dotted line indicates that unlocking arm does not enter the schematic diagram of reversed unlock stroke in figure)；
Arrow show breaker moving direction in corresponding figure in figure.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The embodiment of switchgear provided by the present invention, the switchgear in the embodiment is as shown in Figures 1 to 7, including cabinet
Body 3 and front door 1,1 hinge mounted of front door further include filling for carrying out the locking of locking to front door at the front opening of cabinet body 3
It sets, locking device includes the lock 5 being arranged on cabinet body front door 1 herein, and lock 5 is specially the plate with latch hook structure, currently
After door is closed, lock 5 is mobile in place, realizes the locking to front door by the block cooperation to latch hook structure stroke.
In cabinet body be equipped with fixed plate 7, locking device further include the lock tongue 6 being mounted in fixed plate 7, intermediate transmission arm 9 and
Unlocking arm 11, specially guiding movement is assemblied in the limit plate in fixed plate 7 to lock tongue 6 herein along the vertical direction, and lock tongue 6 is along upper
Lower section is assemblied in fixed plate to reciprocating movement, and the reciprocating movement stroke of lock tongue includes positive locking stroke and reversed unlock row
Journey, lock tongue relied on its positive locking stroke the positive activity of elastic acting force that gravity and elastic mechanism apply with on lock
Latch hook it is corresponding hook cooperation, lock tongue is on its reversed unlock stroke for by the breaker moved from back to front in switchgear
Reverse activity is driven to unlock to disengage with the buckle structure on lock, for this case, lock tongue is moved down as positive activity, lock
Tongue moves up as reverse activity.
In fact, lock 5 latch hook structure towards the end on the inside of cabinet body be equipped with inclination extend forwardly into top
Pushing tow inclined-plane, when front door is closed, the lock moved backward is regular upwards by lock tongue 6 using pushing tow inclined-plane, to facilitate realization to lock
The normal hook of tongue and lock cooperates.
In the present embodiment, two sets of locking-unlocking mechanisms are equipped in fixed plate, every set locking-unlocking mechanism includes same
An intermediate transmission arm 9 and a unlocking arm 11 of the axis rolling assembling in fixed plate 7, the center of rotation axis of the two is coaxial,
In use, by the reciprocating rotation of intermediate transmission arm 9 to drive the reciprocating movement of lock tongue in the up-down direction, to realize locking
And unlock, intermediate transmission arm 9 has the driving portion 91 that lock tongue reciprocating movement is driven during its reciprocating rotation, and it is corresponding,
Lock tongue 6 is equipped with the guide chute 61 vertically extended, and driving portion 91 is inserted into guide chute 61 so that lock tongue 6 is in
Between the driving portion 91 of transmission arm form crank block slider structure, facilitate intermediate transmission arm to drive when rotating forward by driving portion 91
Lock tongue 6 is movable on positive locking stroke, i.e., intermediate transmission arm drives lock tongue 6 to moving down when rotating forward using driving portion 91
It is dynamic, facilitate intermediate transmission arm to drive the activity on reversely unlock stroke of lock tongue 6 by driving portion 91 when rotating backward, i.e., it is intermediate
Transmission arm drives lock tongue 6 to move up when rotating backward using driving portion 91.
In the present embodiment, for unlocking arm 11, the reciprocating rotation stroke of unlocking arm 11 includes the forward direction swung backward
Evacuation stroke and the reversed pushing tow stroke swung forward, unlocking arm 11 have facing forward be used for by entering in cabinet body 3 from front to back
2 pushing tow of breaker with force unlocking arm to swing backward preceding pushing tow avoid face 111, unlocking arm 11 also have backwards for by
2 pushing tow of breaker moved from back to front is to force unlocking arm to swing forward and then lock tongue 6 is driven to move up in reversely unlock stroke
Dynamic rear pushing tow solution locking face 112.
In fact, unlocking arm 11 is connect by one-way clutch transmission mechanism with intermediate transmission arm 9, one-way clutch herein is passed
Motivation structure is when unlocking arm 11 is located on reversed pushing tow stroke in engagement state with reversed by unlocking arm driving intermediate transmission arm
In other words rotation, one-way clutch transmission mechanism are being solved when unlocking arm 11 is located on positive evacuation stroke in disengaged condition
When hammerlock is on reversed pushing tow stroke, one-way clutch transmission mechanism is in engagement state, and the unlocking arm swung forward is in
Between transmission arm rotate backward, intermediate transmission arm then passes through driving portion 91 and moves up with lock tongue 6, realize unlock；In unlocking arm
When on forward direction evacuation stroke, one-way clutch transmission mechanism is in disengaged condition, and the unlocking arm swung backward cannot be in
Between transmission arm rotated, in this way, can effectively reduce breaker entrance resistance.
One-way clutch transmission mechanism herein specifically includes the transmission top towards unlocking arm 11 that intermediate transmission arm 9 is equipped with
There is the pushing tow when unlocking arm is on reversed pushing tow stroke to be driven pushing tow face to drive intermediate transmission arm for pushing surface 92, unlocking arm 11
9 rotate backward, avoid transmission pushing tow face 92 so that one-way clutch driver when unlocking arm 11 is on positive evacuation stroke
Structure is in the unidirectional pushing part 113 of disengaged condition, and the front end of unidirectional pushing part 113 has planar end surface 114, and rear end face then has circle
Arc angle 115.
As shown in fig. 6, when breaker 2 is back into cabinet body, 2 pushing tow unlocking arm 11 of breaker force unlocking arm 11 to
After swing, unlocking arm rotates counterclockwise, and the arc chord angle of unidirectional pushing part 113 is swung up, due to the evacuation of arc chord angle, so that single
To pushing part 113 will not transmission pushing tow face 92 on pushing tow intermediate transmission arm 9, intermediate transmission arm will not follow unlocking arm to turn together
It is dynamic.
As shown in fig. 7, when breaker 2 is to when being forwardly toward front door movement, 2 pushing tow unlocking arm 11 of breaker forces unlock
Arm 11 is swung forward, i.e. clockwise direction in figure, the planar end surface 11 of unidirectional pushing part 113 be swung up and with intermediate transmission arm
On the cooperation of 92 pushing tow of transmission pushing tow face, at this point, intermediate transmission arm can follow unlocking arm to rotate clockwise together, in fact, this
The rotation of place's intermediate transmission arm is to drive rotating backward for lock tongue unlock.
In fact, corresponding intermediate transmission arm 9 is provided with torsional spring 8 in the present embodiment, torsional spring 8 is used as elastic mechanism to centre
Transmission arm 9 applies the elastic acting force for forcing it to rotate forward, and for this case, torsional spring 8 makes the driving portion of intermediate transmission arm 9
91 push lock tongue 6, that is to say, that in the present embodiment, the elastic acting force that lock tongue elastic mechanism applies is in positive locking row
It is movable in journey, realize the locking to front door.
In addition, in the present embodiment, front door locking device further includes for the rear pushing tow solution in breaker 2 and unlocking arm 11
The counter-rotational emergent unlocking structure of intermediate transmission arm 9 is driven when locking face 112 is detached from, which is specially to wear shape to exist
Unlock rod 4 on cabinet body 3, what unlock rod 4 herein was oriented to is assemblied in the solution lockhole that cabinet body 3 is equipped with, tight when needing to carry out
When anxious unlock, presses unlock rod 4 downwards to cooperate with rear 93 pushing tow of solution lock end of intermediate transmission arm 9, intermediate transmission arm 9 can be driven
It rotates backward, and then lock tongue 6 is driven to move on reversely unlock stroke, realize emergency release.
Moreover, the lock on front door 1 includes the latch hook structure being folded upward at, the trailing flank of front end is latched equipped with before being tilted towards
The pushing tow inclined-plane 51 for extending to top, before being turned off when door, lock 5 can jack up lock tongue 6 to realize lock and lock tongue 6 upwards
Normal hook cooperation.In addition, when latching movement in place, lock 5 and 7 lower end support limit of fixed plate prevent cabinet door
The problem of arrisdefect.
In addition, in the present embodiment, the cross-brace plate section for being used to support lock 5 is equipped in fixed plate 7 below lock tongue 6
71, latching 5 one end towards interior of the cabinet has for cooperating when front door is closed with cross-brace plate section pushing tow will lock
Button is guided to the lead-in chamfered 52 above cross-brace plate section.Since the hinge that front door usually utilizes side to arrange realizes folding,
Since front door is heavier, it is easy to appear the problem of arrisdefect moves down, utilizes the guidance of cross-brace plate section 71 and lock in fixed plate 7
The cooperation on inclined-plane 52, before being turned off when door, even there is the problem of arrisdefect moves down in front door, and lead-in chamfered and transverse direction can also be used
The cooperation of support plate section will be latched using cross-brace plate section and be lifted up together with front door, guarantees the normal switching-off at front door.
It should be noted that in specific design, it, can be by the cross-brace plate of fixed plate for the shutdown resistance for reducing front door
More on the lower, in the case where front door does not occur arrisdefect and moves down, as depicted in figs. 1 and 2, the guidance of lock is oblique for the position of section design
Face can not also be contacted with cross-brace plate section, and only in the case where front door is moved down there are arrisdefect, cross-brace plate section is just played
Corresponding thrusting action.
In use, can use unlock rod 4 when needing for handcart type breaker to be fitted into switchgear and press intermediate transmission
Arm 9 is rotated backward to realize unlock operation, is opened front door 1, the breaker 2 of handcart-type is pushed into cabinet body 3, at this point, breaker 2
Pushing tow unlocking arm 11 is swung backward, since the one-way clutch transmission mechanism being arranged between unlocking arm 11 and intermediate transmission arm is only capable of
Driving intermediate transmission arm 9 is rotated backward, so, intermediate transmission arm 9 will not cause any resistance to rotating forward for breaker
Power, breaker 2 can be easily in access switch cabinets, also, after breaker 2 crosses unlocking arm 11, and unlocking arm 11 is made in gravity
With lower automatic swing to unlocked position, herein be vertical position to unlocked position, with the breaker to move from the front to the back
Press unlock.
Moreover, when breaker 2 moves past unlocking arm 11 towards operating position, in the torsional spring 8 as elastic mechanism
Under the action of, 9 forward direction of intermediate transmission arm forces lock tongue 6 to move down to hook and cooperate with lock 5, to realize the lock to front door
Only.
When from the front to the back mobile towards testing position by operating position of breaker 2, pushing tow unlocking arm 11 is swung forward,
Unlocking arm 11 drive intermediate transmission arm 9 rotate backward, and by intermediate transmission arm 9 drive limit plate move up with the lock on front door
5 disengage, and realize unlock operation.
When breaker is when operating position needs emergency release, unlock rod 4 can be pressed, centre is driven by unlock rod 4
Transmission arm rotates backward, and realizes unlock to drive limit plate to move up.
In the present embodiment, locking-unlocking mechanism includes unlocking arm, intermediate transmission arm and the limit plate as lock tongue, at it
In his embodiment, locking-unlocking mechanism also may include integrated L-type connecting lever, and L-type connecting lever has what is vertically extended to indulge
To connecting lever and the lateral connecting lever that extends transversely, longitudinal connecting lever is equivalent to unlocking arm, lateral connecting lever be equivalent to intermediate transmission arm and
Lock tongue, lock tongue herein can be directly integrally disposed upon on lateral connecting lever, and L-type connecting lever herein can be assembled back and forth along the vertical direction
In cabinet body, two pushing tow inclined-planes can be set on longitudinal connecting lever, and realize the lock to front door using the self gravity of L-type connecting lever
Only, when breaker moves from the front to the back, breaker by corresponding pushing tow inclined-plane can pushing tow L-type connecting lever move up to realize and keep away
Allow, after breaker crosses L-type connecting lever, under the effect of gravity, L-type connecting lever fall to realize locking, when breaker from the front to the back
When mobile, breaker can be moved up by corresponding pushing tow inclined-plane pushing tow L-type connecting lever to realize unlock.
In the present embodiment, lock tongue and intermediate transmission arm split settings, in other embodiments, lock tongue can also be passed with centre
Swing arm is wholely set.
In the present embodiment, relies primarily on elastic mechanism driving intermediate transmission arm and rotate forward to carry out locking, in other realities
It applies in example, locking-unlocking mechanism gravity drive intermediate transmission arm can also be only relied on and rotated forward to carry out locking, Huo Zheli
Intermediate transmission is driven to rotate forward together with gravity and elastic mechanism to force lock tongue to be on positive locking stroke.
The present invention also provides a kind of embodiment of front door of switch cabinet locking device, front door locking device in the embodiment
Structure is identical as the structure of front door locking device in above-mentioned switchgear embodiment, and details are not described herein.
Claims (10)
1. a kind of front door of switch cabinet locking device, including the lock for being arranged on cabinet body front door and for being arranged in switchgear
In locking-unlocking mechanism, it is characterised in that: the locking-unlocking mechanism includes being assemblied in switchgear for reciprocating movement
Lock tongue, the reciprocating movement stroke of lock tongue includes positive locking stroke and reversed unlock stroke, and lock tongue is in its positive locking stroke
The upper positive activity of elastic acting force for relying on gravity and/or elastic mechanism application is with hook corresponding with lock cooperation, lock tongue
On its reversed unlock stroke for the breaker driving reverse activity by being moved from back to front in switchgear with the lock
Disengage unlock；Lock on front door includes the latch hook structure being folded upward at, and the trailing flank for latching front end, which is equipped with, is tilted towards preceding extension
To the pushing tow inclined-plane on top, before being turned off when door, lock tongue can be jacked up the normal extension to realize lock with lock tongue by lock upwards
Hook cooperation.
2. front door of switch cabinet locking device according to claim 1, it is characterised in that: the locking-unlocking mechanism includes
For unlocking arm of the rolling assembling in switchgear, the reciprocating rotation stroke of unlocking arm includes the positive evacuation stroke swung backward
The reversed pushing tow stroke swung forward, unlocking arm have facing forward be used for by the breaker top in access switch cabinet from front to back
Push away and face avoided with the preceding pushing tow for forcing unlocking arm to swing backward, unlocking arm also have backwards for disconnected by what is moved from back to front
Rear pushing tow unlock of the road device pushing tow to force unlocking arm to swing forward and then the lock tongue is driven to move on reversely unlock stroke
Face.
3. front door of switch cabinet locking device according to claim 2, it is characterised in that: the locking-unlocking mechanism is also wrapped
The intermediate transmission arm for rolling assembling in switchgear is included, intermediate transmission arm has during its reciprocating rotation described in driving
The driving portion of lock tongue reciprocating movement, intermediate transmission arm are rotated forward to drive lock tongue in positive locking stroke by the driving portion
Upper activity, unlocking arm are connect by one-way clutch transmission mechanism with intermediate transmission arm, and intermediate transmission arm is rotated backward to pass through
It states driving portion and drives lock tongue activity on reversely unlock stroke, one-way clutch transmission mechanism is located at reversed pushing tow in unlocking arm
In engagement state to be rotated backward by unlocking arm driving intermediate transmission arm when on stroke, one-way clutch transmission mechanism is in unlocking arm
Disengaged condition is in when on forward direction evacuation stroke.
4. front door of switch cabinet locking device according to claim 3, it is characterised in that: in the rotation of the intermediate transmission arm
Mandrel line and the center of rotation axis of unlocking arm are coaxial, and the one-way clutch transmission mechanism includes that the intermediate transmission arm is equipped with
The transmission pushing tow face towards the unlocking arm, the unlocking arm have when unlocking arm be on reversed pushing tow stroke pushing tow biography
Dynamic pushing tow face avoids the transmission pushing tow to drive intermediate transmission arm to rotate backward, when unlocking arm is on positive evacuation stroke
Face is so that one-way clutch transmission mechanism is in the unidirectional pushing part of disengaged condition.
5. front door of switch cabinet locking device according to claim 3, it is characterised in that；Front door of switch cabinet locking device further includes
For the rear pushing tow unlock emaciated face in breaker and the unlocking arm from when drive the counter-rotational emergency release of intermediate transmission arm
Structure.
6. according to front door of switch cabinet locking device described in claim 3 or 4 or 5, it is characterised in that: the lock tongue is for edge
Up and down direction guiding movement is assemblied in the limit plate in switchgear, the limit plate be equipped with vertically extend and with it is described in
Between transmission arm driving portion inserting so that the driving portion of the limit plate and intermediate transmission arm guiding that forms crank block slider structure is sliding
Slot.
7. being equipped with a kind of switchgear, including cabinet body and front door, in cabinet body can be back into can move back in cabinet body and from cabinet body forward
Breaker out, switchgear further include the locking device for carrying out locking to front door, and locking device includes being arranged on front door
Lock and locking-unlocking mechanism for being arranged in cabinet body, it is characterised in that: the locking-unlocking mechanism includes reciprocating movement
The lock tongue being assemblied in cabinet body, the reciprocating movement stroke of lock tongue include positive locking stroke and reversed unlock stroke, and lock tongue is at it
It is positive movable with hook corresponding with the lock that the elastic acting force that gravity and/or elastic mechanism apply is relied on positive locking stroke
Cooperation is hung, lock tongue drives reverse activity with de- with the lock on its reversed unlock stroke by the breaker moved from back to front
Unwind lock；Lock on front door includes the latch hook structure being folded upward at, and the trailing flank for latching front end is equipped with inclination and extends forwardly into
The pushing tow inclined-plane on top, before being turned off when door, lock tongue can be jacked up the normal hook to realize lock with lock tongue by lock upwards
Cooperation.
8. switchgear according to claim 7, it is characterised in that: the locking-unlocking mechanism includes rolling assembling in cabinet
Unlocking arm in body, the reciprocating rotation stroke of unlocking arm include the positive evacuation stroke swung backward and the reversed top swung forward
Carry out journey, unlocking arm have it is facing forward for by back into the breaker pushing tow in cabinet body to force unlocking arm to swing backward
Preceding pushing tow avoids face, unlocking arm also have backwards for the breaker pushing tow by moving from back to front to force unlocking arm forward
The rear pushing tow solution locking face for swinging and then the lock tongue being driven to move on reversely unlock stroke.
9. switchgear according to claim 8, it is characterised in that: the locking-unlocking mechanism further includes that rolling assembling exists
Intermediate transmission arm in cabinet body, intermediate transmission arm have the driving that the lock tongue reciprocating movement is driven during its reciprocating rotation
Portion, intermediate transmission arm are rotated forward to drive lock tongue movable on positive locking stroke by the driving portion, intermediate transmission arm
It rotates backward to drive lock tongue activity on reversely unlock stroke by the driving portion, unlocking arm is passed by one-way clutch
Motivation structure is connect with intermediate transmission arm, and one-way clutch transmission mechanism is in joint shape when unlocking arm is located on reversed pushing tow stroke
To be rotated backward by unlocking arm driving intermediate transmission arm, one-way clutch transmission mechanism is located on positive evacuation stroke state in unlocking arm
When be in disengaged condition.
10. according to switchgear described in claim 7 or 8 or 9, it is characterised in that: be equipped with fixed plate, the lock in the cabinet body
Only-unlocking mechanism is mounted in the fixed plate, and movement is assemblied in fixed plate to locking-unlocking mechanism lock tongue along the vertical direction
On, be equipped with the cross-brace plate section for being used to support the lock in fixed plate below the lock tongue, the lock towards cabinet
The one end in internal portion has for cooperating with cross-brace plate section pushing tow when front door is closed will latch guidance to cross-brace
Lead-in chamfered above plate section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128328.5A CN106848900B (en) | 2017-03-06 | 2017-03-06 | Front door of switch cabinet locking device and the switchgear for using the locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128328.5A CN106848900B (en) | 2017-03-06 | 2017-03-06 | Front door of switch cabinet locking device and the switchgear for using the locking device |
Publications (2)
| Publication Number | Publication Date |
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| CN106848900A CN106848900A (en) | 2017-06-13 |
| CN106848900B true CN106848900B (en) | 2019-03-08 |
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| CN201710128328.5A Active CN106848900B (en) | 2017-03-06 | 2017-03-06 | Front door of switch cabinet locking device and the switchgear for using the locking device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108012484B (en) * | 2017-12-22 | 2020-04-07 | 重庆酋创科技有限公司 | Communication machine case |
| CN113910969B (en) * | 2017-12-29 | 2023-12-29 | 上海电巴新能源科技有限公司 | Locking mechanism for battery pack, locking assembly, quick-change bracket assembly and electric vehicle |
| CN108092173B (en) * | 2018-01-24 | 2024-01-16 | 广东友源电气有限公司 | Duplex two-way interlocking mechanism of switch cabinet |
| CN109160140A (en) * | 2018-09-29 | 2019-01-08 | 徐州徐工环境技术有限公司 | Valve system and refuse compaction equipment |
| CN113261794B (en) * | 2021-06-29 | 2022-11-15 | 合肥美的电冰箱有限公司 | Locking subassembly, drawer subassembly and locker |
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| CN106848900A (en) | 2017-06-13 |
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