CN204793808U - Locking device is opened to cubical switchboard valve - Google Patents
Locking device is opened to cubical switchboard valve Download PDFInfo
- Publication number
- CN204793808U CN204793808U CN201520525388.7U CN201520525388U CN204793808U CN 204793808 U CN204793808 U CN 204793808U CN 201520525388 U CN201520525388 U CN 201520525388U CN 204793808 U CN204793808 U CN 204793808U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- handle
- gear
- magnetic patch
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 331
- 230000001939 inductive effect Effects 0.000 claims description 102
- 238000009434 installation Methods 0.000 abstract description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 4
- 241001330002 Bambuseae Species 0.000 abstract 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 4
- 239000011425 bamboo Substances 0.000 abstract 4
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 40
- 238000002955 isolation Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 description 4
- 239000010960 cold rolled steel Substances 0.000 description 4
- 239000008397 galvanized steel Substances 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a locking device is opened to cubical switchboard valve, including installing the wheel on the chassis, the extreme end of chassis has set firmly installs a section of thick bamboo, and an installation section of thick bamboo end is installed and is changeed the handle, is equipped with on the installation section of thick bamboo by changeing passing through the locating pin in the drive arrangement drive insertion switch cabinet locating hole, and installation section of thick bamboo middle part has set firmly control cylinder, is equipped with in the control cylinder by the commentaries on classics a control magnetic path pivoted rotary device. Rational in infrastructure, locking is reliable, firm, and the unblock is simple, can be suitable for the cubical switchboard of different specifications, and the suitability is strong, and the commonality is high, the simple operation.
Description
Technical field
The utility model relates to switch cabinet shutter unlatching-locking apparatus.
Background technology
Along with the development of electrical circuitry equipment technology, 10kV intermediate switchgear cabinet, with features such as its compact conformation, floor space are few, easy to operate, is widely used in newly-built, enlarging and reconstruction transformer station.
The operating repairs work of switch cubicle, service work (as bus bar side, the dedusting of line side fixed contact box, replacing) is carried out when needing to enter breaker of switch cabinet chamber interior, the handover operation of circuit breaker cart operation, stand-by heat, cold standby, inspecting state, and carry out bus nuclear phase, electrical verification and ground connection work time, need opening switch cabinet breaker indoor fixed contact isolation baffle plate.
The device of conventional opening switch cabinet breaker indoor fixed contact isolation baffle plate is that valve drives handcart.Be mostly the valve coordinating circuit breaker cart to use and drive handcart.Multiple driving handcart is configured so that the interior use of the switch cubicle of different cabinet face width degree in each transformer station.
There are several even tens of kinds of dissimilar switch cubicles in administrative transformer station of current each electric company.Multiple switch cubicle needs to configure multiple valve handcart and carries out operating repairs work, and to O&M, maintainer causes inconvenience.When handcart is not enough or handcart not adaptive institute inspection switch cabinet, when needing again the service work carrying out the indoor unlatching valve of breaker of switch cabinet, cause maintainer normally cannot carry out service work.
Develop a kind of highly versatile, workable, reliability high open polytype valve opening device,, valve numerous for the current switch cubicle producer of solution drives car form different and the problem of versatility deficiency, has very important actual application value.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of rational in infrastructure for above-mentioned deficiency, reliable lock, firmly, unlocks simple, can be suitable for the switch cubicle of different size, and by force, versatility is high, the switch cabinet shutter unlatching-locking apparatus of simple operation for applicability.
For solving the problems of the technologies described above, the design feature of this switch cabinet shutter unlatching-locking apparatus is: comprise the wheel be arranged on chassis, the extreme end of chassis is installed with mounting cylinder, mounting cylinder end is provided with handle, mounting cylinder is provided with and is driven by handle the alignment pin inserted in switch cubicle location hole by drive unit, be installed with application cylinder in the middle part of mounting cylinder, in application cylinder, be provided with the whirligig being controlled magnetic patch rotation by handle.
It is reasonable that this switch cabinet shutter unlatching-locking apparatus is that plug-type multi-lock fixed structure carrys out implementation structure, reliable lock, firmly, unlocks simple, can be suitable for the switch cubicle of different size, and by force, versatility is high, simple operation for applicability.
Plug-type multi-lock fixed structure mainly comprises the wheel being arranged on tray bottom and the locking device being arranged on the extreme end of chassis, and wherein locking device mainly comprises the alignment pin controlled by handle and the magnetic patch controlled by handle.For convenience of describing, before direction chassis level being pushed switch cubicle (electrical control cubicles) is called, after rightabout is called, be called above chassis, under being called below chassis, two avris respectively correspondence are called left and right.The wheel that chassis is installed by its underpart is lifted, and therefore can carry weight and move forward and backward.This patent in use, need two covers with the use of, be a set ofly positioned at that left side is a set of is positioned at right side, so not only can play the effect that safe carrying dolly is movable, the dolly that can also adapt to different size switch cubicle pushes, and versatility is stronger.When dolly pushes after in switch cubicle by use this patent, just need with locking device, chassis and switch cubicle to be locked together, to ensure the reliable fit relation of dolly and switch cubicle.For convenience of describing, this state is called pushing status.In this patent, locking device mainly comprises the alignment pin controlled by handle and the magnetic patch controlled by handle, and wherein handle and alignment pin are all arranged on the mounting cylinder of the extreme end of chassis, and magnetic patch is arranged in the application cylinder that is installed on mounting cylinder.In a pressed-in condition, the alignment pin on mounting cylinder is corresponding with the position of positioning hole on switch cubicle.When rotating handle, handle can drive alignment pin outwards movement, so just can push in location hole by alignment pin, also just serves in the longitudinal direction by alignment pin and the spacing effect of location hole, also namely serves the effect of will locate before and after chassis.Being positioned on chassis by handle and alignment pin, is one of locate mode of this patent.The second locate mode of this patent is the magnetic patch driven by handle, and magnetic patch is arranged in application cylinder, is also provided with the whirligig be arranged between magnetic patch and handle in application cylinder.When pushing status, by rotating handle, just magnetic patch can be driven to rotate by whirligig.As everyone knows, around magnetic patch, be distributed with the magnetic line of force, be also magnetic field, the magnetic attraction of magnetic patch will be received when ferromagnetic substance is near magnetic field, and will disappear away from magnetic attraction this during magnetic field.In electric power system, switch cubicle is all generally be made up of cold-rolled steel sheet or galvanized steel plain sheet, therefore can be adsorbed by magnetic patch.In a pressed-in condition, when rotating handle, handle will drive magnetic patch to rotate by whirligig, also namely drive the NS pole of magnetic patch to rotate.When making the magnetic field of magnetic patch near switch cubicle sidewall or base plate, magnetic patch and switch cubicle will be made to be attached together, also namely to serve the effect of magnetic locking.When making the magnetic field of magnetic patch away from switch cubicle side plate or base plate, the absorption affinity of magnetic patch and switch cubicle weakens or disappears, and serves the effect unlocking magnetic locking.In sum, two kinds of retaining mechanisms are comprised in this patent, namely handle drives the mechanical interlocking structure of alignment pin and handle to drive the magnetic locking structure of magnetic patch, under this two kinds of retaining mechanism double lockings effect, effectively can avoid the phenomenons such as the locking caused because of factors such as vibrations loosens, slippage, reliability when ensure that electric power overhaul maintenance switch cabinet and convenience.
As a kind of implementation, described whirligig comprises the rotating cylinder be arranged in mounting cylinder, and rotating cylinder two ends are coaxially installed with the rotating shaft be rotatably assorted with mounting cylinder, and handle is coaxially connected with one of them rotating shaft, be provided with the magnetic patch chamber clamping magnetic patch in rotating cylinder, the NS pole of magnetic patch lays respectively at the both sides of rotating shaft.
In this patent, whirligig mainly comprises the rotating cylinder be arranged in mounting cylinder and the magnetic patch chamber be arranged in rotating cylinder, and wherein, rotating cylinder two ends are installed with two rotating shafts coaxially arranged, and namely rotating cylinder is be arranged in mounting cylinder by this axis of rotation.Described handle is fixedly connected with one of them rotating shaft, and such handle is just integrally formed structure with rotating shaft, rotating cylinder.When rotating handle, handle just drives drum rotation by rotating shaft.Be provided with the magnetic patch chamber coordinated with magnetic patch in rotating cylinder, magnetic patch is installed on after in magnetic patch chamber, and the N pole of magnetic patch and S pole lay respectively at rotating shaft two avris.The object of such setting is when magnetic patch is rotated, and can make its two poles of the earth at intervals near sidewall or the base plate of switch cubicle, even if also namely its magnetic field near switch cubicle sidewall or base plate, also can produce magnetic locking effect to switch cubicle sidewall.
As improvement, be provided with the magnetic inductive block to downward-extension in described application cylinder, magnetic inductive block is two that are positioned at rotating cylinder two avris, is also provided with the lowering or hoisting gear driving magnetic inductive block to move up and down by handle in application cylinder.
In this patent, be also provided with magnetic inductive block in application cylinder, magnetic inductive block is by being made by the ferrimagnet of magnetic patch magnetic absorption, and general employing has the silicon steel sheet of stronger magnetic conductivity.The quantity of magnetic inductive block is two, lays respectively at rotating cylinder both sides.Also be provided with the lowering or hoisting gear driving magnetic inductive block to move up and down in application cylinder, lowering or hoisting gear is by handle control action.When handle rotates, handle will control magnetic inductive block lifting by lowering or hoisting gear.When pushing status, after rotating handle, handle both made magnetic patch rotate with the object reaching magnetic patch magnetic field Proximity switch cabinet sidewall or base plate by whirligig, also magnetic inductive block can be moved down by lowering or hoisting gear also namely close to bottom plate of switch cabinet.Because magnetic inductive block has magnetic conduction effect, the magnetic line of force that magnetic patch sends can preferentially be distributed by magnetic inductive block, therefore magnetic inductive block serves the effect concentrated to bottom plate of switch cabinet by the magnetic patch magnetic line of force and extend, also the effect extending magnetic patch magnetic-adsorption Distance geometry intensity is namely served, magnetic patch is tightly adsorbed on bottom plate of switch cabinet by magnetic inductive block, also namely serves the effect of strong magnetic locking.For convenience of describing, this state is called magnetic state.
As improvement, handle drive the NS of magnetic patch ultra-Left right when arranging handle also synchronously drive magnetic inductive block to be moved down into down stroke limit point, when handle drives the NS of magnetic patch extremely setting up and down, handle also synchronously drives magnetic inductive block to be moved upwards up to up stroke limit point.
When the NS of magnetic patch ultra-Left right arrange time, magnetic patch itself just in time forms the magnetic force extension block of a n shape structure with the magnetic inductive block of two avris.And under magnetic state, magnetic inductive block is moved down into down stroke limit point, correct and bottom plate of switch cabinet snug fit under making this magnetic force extension block, like this, the magnetic force extension block of n shape just forms the magnetic force extension block of an o shape structure with bottom plate of switch cabinet (cold-rolled steel sheet or galvanized steel plain sheet).Magnetic force extension block due to o shape structure is a closed-loop path structure, and just in time for the magnetic line of force of magnetic patch provides a path completed, therefore the magnetic force of now magnetic patch absorption bottom plate of switch cabinet reaches the strongest state.For convenience of describing, this state is called the strongest magnetic state.Contrary, when handle drives the NS of magnetic patch extremely setting up and down, handle also synchronously drives magnetic inductive block to be moved upwards up to up stroke limit point, makes the lower end range switch cabinet base plate of this magnetic force extension block farthest.Now, magnetic patch forms the magnetic circuit away from bottom plate of switch cabinet by the magnetic inductive block of both sides, and therefore the most weak to the magnetic attraction of bottom plate of switch cabinet, this state is called the most weak magnetic state.By rotating handle, just can control this patent and switching between the strongest magnetic state and the most weak magnetic state, also namely switch between magnetic locking and unblock, operate very simple.
As a kind of implementation, described lowering or hoisting gear comprises the gear being installed in rotating cylinder periphery, a magnetic inductive block is provided with the tooth bar with the vertical setting of gears meshing, two magnetic inductive block upper ends are fixed together by non magnetic connecting plate, two magnetic inductive block bottoms are provided with the extension block extended in opposite directions, pinion rotation coordinates to gear bottom during tooth bar lower end with extension block lower limit, and pinion rotation coordinates to gear during tooth bar upper end with connecting plate upper limit.
In this patent, lowering or hoisting gear mainly comprises the gear and tooth bar that arrange and mesh together, its middle gear is installed in rotating cylinder periphery, tooth bar is installed in inside a magnetic inductive block, therefore when handle drives drum rotation, gear will drive magnetic inductive block to move up and down by rack synchronous, so also just achieve the function that handle drives magnetic patch and magnetic inductive block synchronization action.In this lowering or hoisting gear, two magnetic inductive block upper ends are fixed together by connecting plate, connecting plate is made up of nonmagnetic substance, therefore guide effect can not be produced to the magnetic line of force of magnetic patch, but can play interlock effect to two magnetic inductive blocks, why Here it is only arranges the reason with the tooth bar of gears meshing inside a magnetic inductive block.Connecting plate also has another to act on, and exactly when gear drive magnetic inductive block moves down, can carry out spacing upper limit when reaching the strongest magnetic state to gear, is that gear can not continue upwards to rotate, even if also magnetic inductive block can not continue to move down relative to tooth bar.Two magnetic inductive block bottoms are provided with the extension block extended in opposite directions, extension block is except having except the guide effect of the magnetic patch magnetic line of force, when gear drive magnetic inductive block moves also when the most weak magnetic state, also there is the effect to gear lower limit, even if also gear can not continue to move down by tooth bar relatively, even if also magnetic inductive block can not continue to move up.
As improvement, magnetic inductive block bottom is the lower thin and upper thick taper coordinated with the location hole plug-in mounting on track, and magnetic inductive block lower surface is plane.
Magnetic inductive block lower end is set to lower thin and upper thick taper, when can use on the bottom plate of switch cabinet being provided with location hole, inserted in base plate location hole magnetic inductive block lower end, such magnetic inductive block not only has magnetic locking function and also has mechanical interlocking function, and locking effect is better.Magnetic inductive block lower surface being set to plane, using mainly for bottom plate of switch cabinet there is no the situation of location hole.Although now base plate location hole can not be inserted in magnetic inductive block lower end, magnetic inductive block bottom surface can be adjacent to bottom plate of switch cabinet, still can form flux loop with base plate, plays strong magnetic locking effect, ensure that the reliability of locking.
As improvement, chassis front end is installed with fixed head, and fixed head is provided with the upper fixing hole coordinated with upper drive block and arranges and the lower fixed hole that coordinates with lower drive block is arranged.
After chassis front end arranges fixed head, installation can be fixed with bolt to the upper valve drive block of switch cubicle dolly and lower valve drive block by the upper fixing hole row on fixed head and lower fixed hole row.Because upper fixing hole row and lower fixed hole row are row's fixing holes, therefore can carry out front and back according to the model of actual switch cabinet and size to upper valve drive block and lower valve drive block to regulate, when on passing through, valve drive block and the indoor fixed contact of lower valve drive block driving switch cabinet breaker isolate baffle plate like this, just while locking chassis, fixed contact isolation baffle plate in breaker chamber can be opened and put in place, substantially increase accuracy and the versatility of this patent.
As a kind of implementation, described drive unit comprises the pendulum gear be coaxially installed in rotating shaft, mounting cylinder is provided with pin-and-hole, alignment pin by hinge in pin-and-hole, described alignment pin comprises the semi-circular plate be coaxially arranged on bearing pin, circumferentially being provided with and half knuckle-tooth putting gears meshing of semi-circular plate, semi-circular plate is also installed with the main guide vane end stop corresponding with half knuckle-tooth two ends, and pendulum gear is provided with and extrudes the spacing secondary guide vane end stop coordinated with main guide vane end stop.
In this patent, drive unit mainly comprises the pendulum gear be arranged in rotating shaft and the alignment pin be hinged in pin-and-hole, wherein, pendulum gear is coaxially installed in rotating shaft, affixed into a single integrated structure with rotating shaft, therefore, when handle rotates, handle will drive pendulum gear synchronous to rotate by rotating shaft.Alignment pin by hinge, when alignment pin rotates around bearing pin, will be swung in pin-and-hole or show pin-and-hole in the pin-and-hole of mounting cylinder.When this patent pushes after in switch cubicle, if pin-and-hole shown by alignment pin, correspondence swung in switch cubicle location hole, such alignment pin is just spacing with switch cubicle to be coordinated, and serves the effect of this patent and switch cubicle being locked.When alignment pin swings in pin-and-hole around bearing pin, alignment pin also just departs from switch cubicle location hole, and now this patent will unlock with switch cubicle, this patent can be hauled out switch cubicle.In this patent, alignment pin comprises a semi-circular plate, and semi-circular plate is coaxially arranged on bearing pin, semi-circular plate be circumferentially provided with half knuckle-tooth, half knuckle-tooth with pendulum gears meshing.In this patent, although pendulum gear is referred to as gear, it is whole circumferentially only has the part-circular periphery engaged with half knuckle-tooth to have tooth, and all the other circumference are then installed with secondary guide vane end stop.For convenience of describing, the circumferential segment of tooth there is is to claim the circumferential segment having half knuckle-tooth with semi-circular plate to be tooth section pendulum gear.Therefore, pendulum gear and semi-circular plate can only engage in certain angle scope, and also namely putting gear can only drive semi-circular plate to swing within the scope of certain angle, and also namely handle can only drive alignment pin to swing within the scope of certain angle.Semi-circular plate is installed with main guide vane end stop, the quantity of main guide vane end stop is two, correspondingly with half knuckle-tooth two ends respectively arranges.On pendulum gear, secondary guide vane end stop is also arranged on the tooth section two ends of pendulum gear, and secondary guide vane end stop is corresponding with main guide vane end stop to be arranged.The object of such setting is, when putting gear and semi-circular plate engaging piece moves to tooth section end, main guide vane end stop on semi-circular plate can not be rotated further pressing together with the secondary guide vane end stop on pendulum gear, so just serve in the spacing effect in tooth section end, also just serve and make pendulum gear and semi-circular plate can only in the effect of tooth section Inside gear drive.In this patent, when the engaging piece putting gear and semi-circular plate is positioned at tooth section initiating terminal, semi-circular plate swings in pin-and-hole completely, and also namely alignment pin swings in pin-and-hole completely, and now to expose the length of pin-and-hole the shortest for alignment pin, is called the state of swinging in or released state.When the engaging piece putting gear and semi-circular plate moves from tooth section initiating terminal to tooth section clearing end, semi-circular plate will be shown gradually outside pin-and-hole, is also that alignment pin shows pin-and-hole gradually, and now to expose the length of pin-and-hole more and more longer for alignment pin.When the engaging piece putting gear and semi-circular plate is positioned at tooth section clearing end, semi-circular plate shows pin-and-hole completely, and also namely alignment pin shows pin-and-hole completely, and now to expose the length of pin-and-hole the longest for alignment pin, is called the state of showing or locking state.By handle is flapped toward final position from original position, just can controls alignment pin and switch to from the state of swinging in the state of showing, also namely switch to locking state from released state.Same, handle is flapped toward original position from final position, just can controls alignment pin and switch to from the state of showing the state of swinging in, also namely switch to released state from locking state, operate very simple.
As improvement, handle drives magnetic patch to turn to the position the strongest to switch cubicle magnetic attraction while driving alignment pin to show pin-and-hole, and handle drives magnetic patch to turn to the position the most weak to switch cubicle magnetic attraction while driving alignment pin to swing in pin-and-hole.
In this patent, when handle is flapped toward final position from original position, handle switches to from the state of swinging in the state of showing by rotating shaft, pendulum gear drive alignment pin, also namely switches to locking state from released state.Simultaneously, magnetic patch is also swung to the state of the ultra-Left right setting of NS by rotating shaft by rotating cylinder, gear now on rotating cylinder also synchronously drives magnetic inductive block to be moved down into down stroke limit point, namely be inserted in the tracks positioned hole of switch cubicle, so just make magnetic patch reach the strongest magnetic state to bottom plate of switch cabinet by magnetic inductive block.Now this patent has three lock-out states, that is: the avris of alignment pin and switch cubicle location hole locks, the bottom in the tracks positioned hole of magnetic inductive block and switch cubicle locks, the locking of magnetic patch and magnetic inductive block and switch cubicle track (base plate).Therefore, this patent is achieved to be achieved by the wobbling action of a handle and locks with three of switch cubicle kinds, effectively ensure that the reliability of locking, and operation is very simple.When needs unlock, only need rotate backward handle to original position, namely swing in pin-and-hole by rotating shaft and pendulum gear drive alignment pin, by rotating shaft and rotating cylinder magnetic inductive block pulled out tracks positioned hole, by rotating shaft and rotating cylinder, magnetic patch NS is extremely setting up and down and make magnetic patch reach the most weak magnetic state to bottom plate of switch cabinet, also be about to three kinds of locking synchronizations unlock, therefore unlock also very simple.It should be noted that, due to the magnetic attraction of magnetic patch, no matter when locking or when unlocking, all to there is auto-lock function, also namely or can not touch and cause unlocking and arbitrarily switching between lock-out state because of vibration equipment, ensure that functional reliability.
In sum, the advantage of this patent and beneficial effect are:
(1) mechanical interlocking providing handle to drive alignment pin and handle drive two kinds of positioning and locking modes of the magnetic locking of magnetic patch, the handle of novelty drives magnetic patch design, produce enough magnetic force by handle manipulation magnetic patch to be tightly adsorbed in cabinet door on guide rail, guarantee the firm locking of this device.
(2) disassembled upper and lower valve drive block, fixing hole row on drive block can carry out front and back according to the model of actual switch cabinet and size to upper valve drive block and lower valve drive block and regulate, to realize line side in switch cubicle, bus bar side isolation baffle plate unlatching work, dismounting is flexible, easy to use.
(3) this device two overlap with the use of, different size switch cubicle can be adapted to, not by the restriction of cabinet face width degree, highly versatile.
Accompanying drawing explanation
By reference to the accompanying drawings the utility model is described in further detail:
Fig. 1 is the structural representation of this patent;
Magnetic line of force distribution map when Fig. 2 is the most weak magnetic state;
Magnetic line of force distribution map when Fig. 3 is the strongest magnetic state;
The fit structure schematic diagram of each parts and location hole in application cylinder when Fig. 4 is the most weak magnetic state;
The fit structure schematic diagram of each parts and location hole in application cylinder when Fig. 5 is the strongest magnetic state;
Fig. 6 is the structural representation that this patent swings in state;
Fig. 7 is the structural representation that this patent shows state;
Fig. 8 is the state diagram of this patent when just pushing switch cubicle along track;
Fig. 9 is the state diagram that this patent has just touched when isolation barrier driving is taken turns;
Figure 10 is the state diagram that this patent promotes when isolation barrier driving wheel is opened isolation baffle plate and locks with location hole.
Embodiment
As shown in the figure, this switch cabinet shutter unlatching-locking apparatus comprises and is arranged on the One On The Chassis wheel 2, the extreme end of chassis is installed with mounting cylinder 3, mounting cylinder end is provided with handle 4, mounting cylinder is provided with and is driven by handle the alignment pin 5 inserted in switch cubicle location hole by drive unit, be installed with application cylinder 6 in the middle part of mounting cylinder, in application cylinder, be provided with the whirligig rotated by handle control magnetic patch 8.This switch cabinet shutter unlatching-locking apparatus mainly comprises the wheel being arranged on tray bottom and the locking device being arranged on the extreme end of chassis, and wherein locking device mainly comprises the alignment pin controlled by handle and the magnetic patch controlled by handle.For convenience of describing, before direction chassis level being pushed switch cubicle (electrical control cubicles) is called, after rightabout is called, be called above chassis, under being called below chassis, two avris respectively correspondence are called left and right.The wheel that chassis is installed by its underpart is lifted, and therefore can carry weight and move forward and backward.This patent in use, need two covers with the use of, be a set ofly positioned at that left side is a set of is positioned at right side, so not only can play the effect that safe carrying dolly is movable, the dolly that can also adapt to different size switch cubicle pushes, and versatility is stronger.When dolly pushes after in switch cubicle by use this patent, just need with locking device, chassis and switch cubicle to be locked together, to ensure the reliable fit relation of dolly and switch cubicle.For convenience of describing, this state is called pushing status.In this patent, locking device mainly comprises the alignment pin controlled by handle and the magnetic patch controlled by handle, and wherein handle, alignment pin and handle are all arranged on the mounting cylinder of the extreme end of chassis, and magnetic patch is arranged in the application cylinder that is installed on mounting cylinder.In a pressed-in condition, the alignment pin on mounting cylinder is corresponding with the position of positioning hole on switch cubicle.When rotating handle, handle can drive alignment pin outwards movement, so just can push in location hole by alignment pin, also just serves in the longitudinal direction by alignment pin and the spacing effect of location hole, also namely serves the effect of will locate before and after chassis.Being positioned on chassis by handle and alignment pin, is one of locate mode of this patent.The second locate mode of this patent is the magnetic patch driven by handle, and magnetic patch is arranged in application cylinder, is also provided with the whirligig be arranged between magnetic patch and handle in application cylinder.When pushing status, by rotating handle, just magnetic patch can be driven to rotate by whirligig.As everyone knows, around magnetic patch, be distributed with the magnetic line of force, be also magnetic field, the magnetic attraction of magnetic patch will be received when ferromagnetic substance is near magnetic field, and will disappear away from magnetic attraction this during magnetic field.In electric power system, switch cubicle is all generally be made up of cold-rolled steel sheet or galvanized steel plain sheet, therefore can be adsorbed by magnetic patch.In a pressed-in condition, when rotating handle, handle will drive magnetic patch to rotate by whirligig, also namely drive the NS pole of magnetic patch to rotate.When making the magnetic field of magnetic patch near switch cubicle sidewall or base plate, magnetic patch and switch cubicle will be made to be attached together, also namely to serve the effect of magnetic locking.When making the magnetic field of magnetic patch away from switch cubicle side plate or base plate, the absorption affinity of magnetic patch and switch cubicle weakens or disappears, and serves the effect unlocking magnetic locking.In sum, two kinds of retaining mechanisms are comprised in this patent, namely handle drives the mechanical interlocking structure of alignment pin and handle to drive the magnetic locking structure of magnetic patch, under this two kinds of retaining mechanism double lockings effect, effectively can avoid the phenomenons such as the locking caused because of factors such as vibrations loosens, slippage, reliability when ensure that electric power overhaul maintenance switch cabinet and convenience.
In the present embodiment, described whirligig comprises the rotating cylinder 10 be arranged in mounting cylinder, rotating cylinder two ends are coaxially installed with the rotating shaft 11 be rotatably assorted with mounting cylinder, handle is coaxially connected with one of them rotating shaft, be provided with the magnetic patch chamber 12 clamping magnetic patch in rotating cylinder, the NS pole of magnetic patch lays respectively at the both sides of rotating shaft.
In this patent, whirligig mainly comprises the rotating cylinder be arranged in mounting cylinder and the magnetic patch chamber be arranged in rotating cylinder, and wherein, rotating cylinder two ends are installed with two rotating shafts coaxially arranged, and namely rotating cylinder is be arranged in mounting cylinder by this axis of rotation.Described handle is fixedly connected with one of them rotating shaft, and such handle is just integrally formed structure with rotating shaft, rotating cylinder.When rotating handle, handle just drives drum rotation by rotating shaft.Be provided with the magnetic patch chamber coordinated with magnetic patch in rotating cylinder, magnetic patch is installed on after in magnetic patch chamber, and the N pole of magnetic patch and S pole lay respectively at rotating shaft two avris.The object of such setting is when magnetic patch is rotated, and can make its two poles of the earth at intervals near sidewall or the base plate of switch cubicle, even if also namely its magnetic field near switch cubicle sidewall or base plate, also can produce magnetic locking effect to switch cubicle sidewall.
In this patent, be provided with the magnetic inductive block 9 to downward-extension in described application cylinder, magnetic inductive block is two that are positioned at rotating cylinder two avris, is also provided with the lowering or hoisting gear driving magnetic inductive block to move up and down by handle in application cylinder.Also be provided with magnetic inductive block in application cylinder, magnetic inductive block is by being made by the ferrimagnet of magnetic patch magnetic absorption, and general employing has the silicon steel sheet of stronger magnetic conductivity.The quantity of magnetic inductive block is two, lays respectively at rotating cylinder both sides.Also be provided with the lowering or hoisting gear driving magnetic inductive block to move up and down in application cylinder, lowering or hoisting gear is by handle control action.When handle rotates, handle will control magnetic inductive block lifting by lowering or hoisting gear.When pushing status, after rotating handle, handle both made magnetic patch rotate with the object reaching magnetic patch magnetic field Proximity switch cabinet sidewall or base plate by whirligig, also magnetic inductive block can be moved down by lowering or hoisting gear also namely close to bottom plate of switch cabinet.Because magnetic inductive block has magnetic conduction effect, the magnetic line of force that magnetic patch sends can preferentially be distributed by magnetic inductive block, therefore magnetic inductive block serves the effect concentrated to bottom plate of switch cabinet by the magnetic patch magnetic line of force and extend, also the effect extending magnetic patch magnetic-adsorption Distance geometry intensity is namely served, magnetic patch is tightly adsorbed on bottom plate of switch cabinet by magnetic inductive block, also namely serves the effect of strong magnetic locking.For convenience of describing, this state is called magnetic state.
In the present embodiment, handle drive the NS of magnetic patch ultra-Left right when arranging handle also synchronously drive magnetic inductive block to be moved down into down stroke limit point, when handle drives the NS of magnetic patch extremely setting up and down, handle also synchronously drives magnetic inductive block to be moved upwards up to up stroke limit point.When the NS of magnetic patch ultra-Left right arrange time, magnetic patch itself just in time forms the magnetic force extension block of a n shape structure with the magnetic inductive block of two avris.And under magnetic state, magnetic inductive block is moved down into down stroke limit point, correct and bottom plate of switch cabinet snug fit under making this magnetic force extension block, like this, the magnetic force extension block of n shape just forms the magnetic force extension block of an o shape structure with bottom plate of switch cabinet (cold-rolled steel sheet or galvanized steel plain sheet).Magnetic force extension block due to o shape structure is a closed-loop path structure, and just in time for the magnetic line of force of magnetic patch provides a path completed, therefore the magnetic force of now magnetic patch absorption bottom plate of switch cabinet reaches the strongest state.For convenience of describing, this state is called the strongest magnetic state.Contrary, when handle drives the NS of magnetic patch extremely setting up and down, handle also synchronously drives magnetic inductive block to be moved upwards up to up stroke limit point, makes the lower end range switch cabinet base plate of this magnetic force extension block farthest.Now, magnetic patch forms the magnetic circuit away from bottom plate of switch cabinet by the magnetic inductive block of both sides, and therefore the most weak to the magnetic attraction of bottom plate of switch cabinet, this state is called the most weak magnetic state.By rotating handle, just can control this patent and switching between the strongest magnetic state and the most weak magnetic state, also namely switch between magnetic locking and unblock, operate very simple.
In the present embodiment, described lowering or hoisting gear comprises the gear 13 being installed in rotating cylinder 10 periphery, a magnetic inductive block is provided with the tooth bar 14 with the vertical setting of gears meshing, two magnetic inductive block upper ends are fixed together by non magnetic connecting plate 15, two magnetic inductive block bottoms are provided with the extension block 16 extended in opposite directions, pinion rotation coordinates to gear bottom during tooth bar lower end with extension block lower limit, and pinion rotation coordinates to gear during tooth bar upper end with connecting plate upper limit.
In this patent, lowering or hoisting gear mainly comprises the gear and tooth bar that arrange and mesh together, its middle gear is installed in rotating cylinder periphery, tooth bar is installed in inside a magnetic inductive block, therefore when handle drives drum rotation, gear will drive magnetic inductive block to move up and down by rack synchronous, so also just achieve the function that handle drives magnetic patch and magnetic inductive block synchronization action.In this lowering or hoisting gear, two magnetic inductive block upper ends are fixed together by connecting plate, connecting plate is made up of nonmagnetic substance, therefore guide effect can not be produced to the magnetic line of force of magnetic patch, but can play interlock effect to two magnetic inductive blocks, why Here it is only arranges the reason with the tooth bar of gears meshing inside a magnetic inductive block.Connecting plate also has another to act on, and exactly when gear drive magnetic inductive block moves down, can carry out spacing upper limit when reaching the strongest magnetic state to gear, is that gear can not continue upwards to rotate, even if also magnetic inductive block can not continue to move down relative to tooth bar.Two magnetic inductive block bottoms are provided with the extension block extended in opposite directions, extension block is except having except the guide effect of the magnetic patch magnetic line of force, when gear drive magnetic inductive block moves also when the most weak magnetic state, also there is the effect to gear lower limit, even if also gear can not continue to move down by tooth bar relatively, even if also magnetic inductive block can not continue to move up.
Magnetic inductive block bottom is the lower thin and upper thick taper coordinated with location hole 17 plug-in mounting on track 21, and magnetic inductive block lower surface is plane.Magnetic inductive block lower end is set to lower thin and upper thick taper, when can use on the bottom plate of switch cabinet being provided with location hole, inserted in base plate location hole magnetic inductive block lower end, such magnetic inductive block not only has magnetic locking function and also has mechanical interlocking function, and locking effect is better.Magnetic inductive block lower surface being set to plane, using mainly for bottom plate of switch cabinet there is no the situation of location hole.Although now base plate location hole can not be inserted in magnetic inductive block lower end, magnetic inductive block bottom surface can be adjacent to bottom plate of switch cabinet, still can form flux loop with base plate, plays strong magnetic locking effect, ensure that the reliability of locking.
Chassis front end is installed with fixed head 18, fixed head be provided with the upper fixing hole coordinated with upper drive block arrange 19 and the lower fixed hole that coordinates with lower drive block arrange 20.After chassis front end arranges fixed head, installation can be fixed with bolt to the upper valve drive block of switch cubicle dolly and lower valve drive block by the upper fixing hole row on fixed head and lower fixed hole row.Because upper fixing hole row and lower fixed hole row are row's fixing holes, therefore can carry out front and back according to the model of actual switch cabinet and size to upper valve drive block and lower valve drive block to regulate, when on passing through, valve drive block and the indoor fixed contact of lower valve drive block driving switch cabinet breaker isolate baffle plate (taking turns 22 by isolation barrier driving to promote) like this, just while locking chassis, fixed contact isolation baffle plate in breaker chamber can be opened and put in place, substantially increase accuracy and the versatility of this patent.
In the present embodiment, described drive unit comprises the pendulum gear 7 be coaxially installed in rotating shaft, mounting cylinder is provided with pin-and-hole 23, alignment pin is hinged in pin-and-hole by bearing pin 24, described alignment pin comprises the semi-circular plate 25 be coaxially arranged on bearing pin, circumferentially being provided with and half knuckle-tooth 26 putting gears meshing of semi-circular plate, semi-circular plate is also installed with the main guide vane end stop 27 corresponding with half knuckle-tooth two ends, and pendulum gear is provided with and extrudes the spacing secondary guide vane end stop 28 coordinated with main guide vane end stop.
In this patent, drive unit mainly comprises the pendulum gear be arranged in rotating shaft and the alignment pin be hinged in pin-and-hole, wherein, pendulum gear is coaxially installed in rotating shaft, affixed into a single integrated structure with rotating shaft, therefore, when handle rotates, handle will drive pendulum gear synchronous to rotate by rotating shaft.Alignment pin by hinge, when alignment pin rotates around bearing pin, will be swung in pin-and-hole or show pin-and-hole in the pin-and-hole of mounting cylinder.When this patent pushes after in switch cubicle, if pin-and-hole shown by alignment pin, correspondence swung in switch cubicle location hole, such alignment pin is just spacing with switch cubicle to be coordinated, and serves the effect of this patent and switch cubicle being locked.When alignment pin swings in pin-and-hole around bearing pin, alignment pin also just departs from switch cubicle location hole, and now this patent will unlock with switch cubicle, this patent can be hauled out switch cubicle.In this patent, alignment pin comprises a semi-circular plate, and semi-circular plate is coaxially arranged on bearing pin, semi-circular plate be circumferentially provided with half knuckle-tooth, half knuckle-tooth with pendulum gears meshing.In this patent, although pendulum gear is referred to as gear, it is whole circumferentially only has the part-circular periphery engaged with half knuckle-tooth to have tooth, and all the other circumference are then installed with secondary guide vane end stop.For convenience of describing, the circumferential segment of tooth there is is to claim the circumferential segment having half knuckle-tooth with semi-circular plate to be tooth section pendulum gear.Therefore, pendulum gear and semi-circular plate can only engage in certain angle scope, and also namely putting gear can only drive semi-circular plate to swing within the scope of certain angle, and also namely handle can only drive alignment pin to swing within the scope of certain angle.Semi-circular plate is installed with main guide vane end stop, the quantity of main guide vane end stop is two, correspondingly with half knuckle-tooth two ends respectively arranges.On pendulum gear, secondary guide vane end stop is also arranged on the tooth section two ends of pendulum gear, and secondary guide vane end stop is corresponding with main guide vane end stop to be arranged.The object of such setting is, when putting gear and semi-circular plate engaging piece moves to tooth section end, main guide vane end stop on semi-circular plate can not be rotated further pressing together with the secondary guide vane end stop on pendulum gear, so just serve in the spacing effect in tooth section end, also just serve and make pendulum gear and semi-circular plate can only in the effect of tooth section Inside gear drive.In this patent, when the engaging piece putting gear and semi-circular plate is positioned at tooth section initiating terminal, semi-circular plate swings in pin-and-hole completely, and also namely alignment pin swings in pin-and-hole completely, and now to expose the length of pin-and-hole the shortest for alignment pin, is called the state of swinging in or released state.When the engaging piece putting gear and semi-circular plate moves from tooth section initiating terminal to tooth section clearing end, semi-circular plate will be shown gradually outside pin-and-hole, is also that alignment pin shows pin-and-hole gradually, and now to expose the length of pin-and-hole more and more longer for alignment pin.When the engaging piece putting gear and semi-circular plate is positioned at tooth section clearing end, semi-circular plate shows pin-and-hole completely, and also namely alignment pin shows pin-and-hole completely, and now to expose the length of pin-and-hole the longest for alignment pin, is called the state of showing or locking state.By handle is flapped toward final position from original position, just can controls alignment pin and switch to from the state of swinging in the state of showing, also namely switch to locking state from released state.Same, handle is flapped toward original position from final position, just can controls alignment pin and switch to from the state of showing the state of swinging in, also namely switch to released state from locking state, operate very simple.
Drive magnetic patch to turn to the position the strongest to switch cubicle magnetic attraction while handle 4 drives alignment pin to show pin-and-hole 23, while handle 4 drives alignment pin to swing in pin-and-hole, drive magnetic patch 8 to turn to the position the most weak to switch cubicle magnetic attraction.In this patent, when handle is flapped toward final position from original position, handle switches to from the state of swinging in the state of showing by rotating shaft, pendulum gear drive alignment pin, also namely switches to locking state from released state.Simultaneously, magnetic patch is also swung to the state of the ultra-Left right setting of NS by rotating shaft by rotating cylinder, gear now on rotating cylinder also synchronously drives magnetic inductive block to be moved down into down stroke limit point, namely be inserted in the tracks positioned hole of switch cubicle, so just make magnetic patch reach the strongest magnetic state to bottom plate of switch cabinet by magnetic inductive block.Now this patent has three lock-out states, that is: the avris of alignment pin and switch cubicle location hole locks, the bottom in the tracks positioned hole of magnetic inductive block and switch cubicle locks, the locking of magnetic patch and magnetic inductive block and switch cubicle track (base plate).Therefore, this patent is achieved to be achieved by the wobbling action of a handle and locks with three of switch cubicle kinds, effectively ensure that the reliability of locking, and operation is very simple.When needs unlock, only need rotate backward handle to original position, namely swing in pin-and-hole by rotating shaft and pendulum gear drive alignment pin, by rotating shaft and rotating cylinder magnetic inductive block pulled out tracks positioned hole, by rotating shaft and rotating cylinder, magnetic patch NS is extremely setting up and down and make magnetic patch reach the most weak magnetic state to bottom plate of switch cabinet, also be about to three kinds of locking synchronizations unlock, therefore unlock also very simple.It should be noted that, due to the magnetic attraction of magnetic patch, no matter when locking or when unlocking, all to there is auto-lock function, also namely or can not touch and cause unlocking and arbitrarily switching between lock-out state because of vibration equipment, ensure that functional reliability.
Claims (9)
1. a switch cabinet shutter unlatching-locking apparatus, it is characterized in that: comprise the wheel (2) be arranged on chassis (1), chassis (1) rear end is installed with mounting cylinder (3), mounting cylinder (3) end is provided with handle (4), mounting cylinder (3) is provided with and is driven by handle (4) alignment pin (5) inserted in switch cubicle location hole by drive unit, mounting cylinder (3) middle part is installed with application cylinder (6), is provided with the whirligig rotated by handle (4) control magnetic patch (8) in application cylinder (6).
2. switch cabinet shutter unlatching-locking apparatus as claimed in claim 1, it is characterized in that: described whirligig comprises the rotating cylinder (10) be arranged in mounting cylinder (3), rotating cylinder (10) two ends are coaxially installed with the rotating shaft (11) be rotatably assorted with mounting cylinder (3), handle (4) is coaxially connected with one of them rotating shaft (11), be provided with the magnetic patch chamber (12) clamping magnetic patch (8) in rotating cylinder (10), the NS pole of magnetic patch (8) lays respectively at the both sides of rotating shaft (11).
3. switch cabinet shutter unlatching-locking apparatus as claimed in claim 2, it is characterized in that: the magnetic inductive block (9) to downward-extension is installed in described application cylinder (6), magnetic inductive block (9), for being positioned at two of rotating cylinder (10) two avris, is also provided with the lowering or hoisting gear driving magnetic inductive block (9) to move up and down by handle (4) in application cylinder (6).
4. switch cabinet shutter unlatching-locking apparatus as claimed in claim 3, it is characterized in that: handle (4) drive the NS of magnetic patch (8) ultra-Left right when arranging handle (4) also synchronously drive magnetic inductive block (9) to be moved down into down stroke limit point, when handle (4) drives the NS of magnetic patch (8) extremely setting up and down, handle (4) also synchronously drives magnetic inductive block (9) to be moved upwards up to up stroke limit point.
5. switch cabinet shutter unlatching-locking apparatus as claimed in claim 4, it is characterized in that: described lowering or hoisting gear comprises the gear (13) being installed in rotating cylinder (10) periphery, a magnetic inductive block (9) is provided with the tooth bar (14) of the vertical setting of engaging with gear (13), two magnetic inductive blocks (9) upper end is fixed together by non magnetic connecting plate (15), two magnetic inductive blocks (9) bottom is provided with the extension block (16) extended in opposite directions, when gear (13) turns to tooth bar (14) lower end, gear (13) bottom coordinates with extension block (16) lower limit, when gear (13) turns to tooth bar (14) upper end, gear (13) coordinates with connecting plate (15) upper limit.
6. switch cabinet shutter unlatching-locking apparatus as claimed in claim 5, is characterized in that: magnetic inductive block (9) bottom is the lower thin and upper thick taper coordinated with location hole (17) plug-in mounting on track (21), and magnetic inductive block (9) lower surface is plane.
7. switch cabinet shutter unlatching-locking apparatus as claimed in claim 6, it is characterized in that: chassis (1) front end is installed with fixed head (18), fixed head (18) is provided with the upper fixing hole coordinated with upper drive block and arranges (19) and the lower fixed hole that coordinates with lower drive block is arranged (20).
8. the switch cabinet shutter unlatching-locking apparatus as described in claim as arbitrary in claim 1-7, it is characterized in that: described drive unit comprises the pendulum gear (7) be coaxially installed in rotating shaft (11), mounting cylinder (3) is provided with pin-and-hole (23), alignment pin (5) is hinged in pin-and-hole (23) by bearing pin (24), described alignment pin (5) comprises the semi-circular plate (25) be coaxially arranged on bearing pin (24), half knuckle-tooth (26) being circumferentially provided with putting gear (7) and engage of semi-circular plate (25), semi-circular plate (25) is also installed with the main guide vane end stop (26) corresponding with half knuckle-tooth (26) two ends, pendulum gear (7) is provided with and extrudes the spacing secondary guide vane end stop (27) coordinated with main guide vane end stop (26).
9. switch cabinet shutter unlatching-locking apparatus as claimed in claim 8, it is characterized in that: handle (4) drives magnetic patch (8) to turn to the position the strongest to switch cubicle magnetic attraction while driving alignment pin (5) to show pin-and-hole (23), handle (4) drives magnetic patch (8) to turn to the position the most weak to switch cubicle magnetic attraction while driving alignment pin (5) to swing in pin-and-hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525388.7U CN204793808U (en) | 2015-07-20 | 2015-07-20 | Locking device is opened to cubical switchboard valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525388.7U CN204793808U (en) | 2015-07-20 | 2015-07-20 | Locking device is opened to cubical switchboard valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793808U true CN204793808U (en) | 2015-11-18 |
Family
ID=54533792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525388.7U Expired - Fee Related CN204793808U (en) | 2015-07-20 | 2015-07-20 | Locking device is opened to cubical switchboard valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204793808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880708A (en) * | 2019-12-06 | 2020-03-13 | 王有斌 | Special tool for opening high-voltage switch cabinet partition |
-
2015
- 2015-07-20 CN CN201520525388.7U patent/CN204793808U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880708A (en) * | 2019-12-06 | 2020-03-13 | 王有斌 | Special tool for opening high-voltage switch cabinet partition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204793808U (en) | Locking device is opened to cubical switchboard valve | |
| CN203434502U (en) | A switch cabinet provided with isolating switches, vacuum circuit breakers, and grounding switches | |
| CN102568880B (en) | Isolating switch transmission device for track traffic | |
| CN204992392U (en) | Cubical switchboard valve on -off control device | |
| CN104631957B (en) | Rail transit shielding door locking and unlocking device | |
| CN206194580U (en) | High pressure interlock system | |
| CN202258983U (en) | Mechanical locking device of three-station switch | |
| CN106711832A (en) | Switch cabinet valve opening and locking device | |
| CN103337391B (en) | Quick door opening and closing locking mechanism of explosion-proof switch box | |
| CN202401849U (en) | Improved remote-controlled handle door lock | |
| CN203706944U (en) | Locking device of circuit breaker closing knob of switch cabinet and switch cabinet group | |
| CN106654960A (en) | Valve switch control device of switchgear | |
| CN204905139U (en) | Solid insulated cabinets no. 5 prevents interlocking device | |
| CN209561987U (en) | Novel radio phase checking device with nuclear phase trolley | |
| CN205265126U (en) | Breaker | |
| CN203515024U (en) | Key locker for electric locomotive or power car | |
| CN207526269U (en) | A kind of locomotive door lock and locomotive car door | |
| CN102779669A (en) | Interlocking device and electric control box | |
| CN206558945U (en) | A kind of drawer for drawer-type distribution box | |
| CN201191721Y (en) | Earthing interlocking mechanism of middle disposed cabinet | |
| CN201199490Y (en) | Novel interlocking apparatus for looped net cabinet | |
| CN104576118A (en) | Three-station switch switching and interlocking device | |
| CN202509882U (en) | Indoor electromagnetic lock | |
| CN202990640U (en) | Switch cabinet front door automatic locking and unlocking mechanism | |
| CN202996682U (en) | Three-working-position isolation switch driving mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180720 |