A kind of safe intermediate switchgear cabinet
Technical field
The present invention relates to power supply unit field, especially a kind of safe intermediate switchgear cabinet.
Background technology
Intermediate switchgear cabinet is the common equipment in power supply unit, and often there is high voltage its inside, but this equipment often needs dimension again
Shield personnel control, enter cabinet maintenance and visually observe manually, but cabinet inner high voltage is easy to form induced potential at cabinet door or even produced
The raw electric arc that leaks(Arc light), therefore need at cabinet door fully to optimize the manual mode operation of personnel, to ensure attendant
Manipulation safety.
The content of the invention
The present invention proposes a kind of safe intermediate switchgear cabinet, is the hand of Field Force at each cabinet door of switch cubicle
Control operation has carried out abundant optimization to ensure attendant's safety.
The present invention uses following technical scheme.
At a kind of safe intermediate switchgear cabinet, the cabinet door of the switch cubicle machine is operated provided with switch cubicle emergency trip
Structure;Inside switch cabinet closes door state blocking mechanism and cabinet door door opening state earthed switch operating shaft blocking mechanism provided with cabinet door.
The switch cubicle emergency trip operating mechanism includes being arranged at the installing plate on rear side of switch cubicle trip operation cabinet door, institute
The side for stating installing plate is hinged with the hinged seat being arranged on rear side of cabinet door, is provided with installing plate and passes cabinet door from back to front
It is located to be provided with the downside of hinged seat in the drive division rotated around hinged seat for drive installation plate, the cabinet door and wears from front to back
Cross the activation button of cabinet door, the lower, transverse of the installing plate be provided with one end after installing plate is rotated be located on rear side of activation button and
The other end is located at the sliding bar on front side of emergency trip button.
The cabinet door door opening state earthed switch operating shaft blocking mechanism, including be longitudinally disposed in switch cubicle for driving
The operation rotating shaft that earthed switch is opened and closed, the front end of the operation rotating shaft is provided with driving termination and stretched out on front side of switch cubicle, behaviour
The rear end for making rotating shaft is supported on rear side of switch cubicle on the doorframe of cabinet door, in the rearward end of the operation rotating shaft and positioned at the interior of doorframe
Side is provided with snap close piece, and the upper end side of the snap close piece, which is set, is located at snap close piece in the breach to lower recess, the switch cubicle
Upside be vertically arranged with an elastic slide bar, the rear end of the elastic slide bar is stretched out and rear by the doorframe of cabinet door on rear side of switch cubicle
Sidecar door lock is connected to when closing in rear side cabinet door, is provided with elastic slide bar for sliding with elasticity in rear side cabinet door opening
Bar is moved rearwards by and fallen into the positive stop for being engaged in breach with snap close piece and stopping operation axis of rotation.
After the cabinet door closes door state blocking mechanism including being arranged on rear side of switch cubicle and being hinged with switch cubicle side
Sidecar door;The vertical front side portion being provided with hook plate, the hook plate of the opposite side of the cabinet door, which is provided with neck, the doorframe, to be located at
The side of operation rotating shaft longitudinally offers the notch penetrated for hook plate in switch cubicle, and a side of the snap close piece is provided with use
Stopper protrusion in embedded neck.
At the switch cubicle emergency trip operating mechanism, the top of the side of installing plate one is provided with the hinge stretched out
Socket part, the upper and lower sides of the articulated section are respectively arranged with the flanging turned to rear side, the hinged seat and are vertically equipped with upper and lower side
It is each passed through the bearing pin of articulated section flanging;It is equipped with that a side is connected on hinged seat and the other end is connected in the middle part of the bearing pin
Torsion spring on articulated section;Lug boss forward is provided with front side of flanging on the upside of articulated section, the lug boss is from back to front
Pass the notch being arranged in cabinet door and be connected with a drive rod, the other end of the drive rod is fixed with insulated handle to be formed
Drive division;The sliding bar includes sleeve, and the two side ends of the installing plate bottom are respectively arranged with the folded plate turned to rear side, institute
The two ends for stating sleeve pipe pass bifoldable plate respectively, and one end of sleeve pipe is bolted with anterior regulating bolt, after the other end of sleeve pipe is bolted with
Portion's regulating bolt, the other end of the rear portion regulating bolt is fixed with collets;It is nested with described sleeve pipe between bifoldable plate
There is the gag lever post for being also radially equipped with and being abutted against with back-moving spring one end on back-moving spring, sleeve pipe;One end of the sliding bar exists
Installing plate is abutted against after rotating with activation button, and the activation button is insulation button.
Switch cubicle, which is used to observe to be provided with observation window, observation window at the cabinet door of operating mode in cabinet, is provided with protection against electric shock structure;It is described
Protection against electric shock structure at observation window includes window body glass, ground strip and earth cable;Interlayer, the folder are set in the window body glass
Layer is built with wire netting;The wire netting is connected with earth cable with ground strip;The ground strip is fixed in cabinet door, ground strip
Conducting position connect with the conducting position of cabinet door;At protection against electric shock structure at the observation window, the ground strip is solid with bolt
Due in cabinet door, the conducting position of ground strip connects through bolt with the metal part of cabinet door;The window body glass is by layer glass
It is put together;The window body glass is installed on the inside of door of switch cabinet, is offered at the cabinet door adjacent with window body glass multiple big
Shape hole is used to observe operating mode in cabinet;The window body glass is safety glass;The ground strip quantity is two and is parallel to each other, described
Window body glass is gripped by two ground strips, and window body glass is adjacent and parallel with cabinet door with cabinet door inner face.
At the cabinet door door opening state earthed switch operating shaft blocking mechanism, it is provided with and turns on the doorframe of the rear side cabinet door
To the folded plate of inner side, the fixed plate for installing elastic slide bar, the front and rear side difference of the fixed plate are provided with the folded plate
It is provided with flanging;The elastic slide bar includes front end and is provided with the body of rod of spacing block set, the body of rod from front to back longitudinally through
Two flangings of fixed plate and the doorframe for passing rear side cabinet door, the positive stop are fixed on the body of rod and positioned at two foldings of fixed plate
It is located between side, on the body of rod between the flanging on front side of positive stop and fixed plate and is also equipped with stage clip;The positive stop
It is fixed on through tight fixed bolt on the body of rod;The fixed plate is fixed on folded plate through locking bolt, the flanging on front side of fixed plate
Bottom be additionally provided with for operating shaft longitudinally through through hole.
The cabinet door is closed at door state blocking mechanism, and being hung down on the doorframe positioned at the side of notch is provided with supporting plate, described
The damping sealing strap abutted against when closing door state for rear side cabinet door with rear side cabinet door is provided with the back end surface of supporting plate;Institute
Snap close piece is stated to be fixed on through radial direction tight fixed bolt in the rear end of operation rotating shaft;It is additionally provided with the doorframe and rear side cabinet door
The latching device being engaged;The latching device includes being provided with the plumbing bar being located on doorframe, the rear side cabinet door and is used for
The through hole that plumbing bar is passed, is additionally provided with the clamping block passed for plumbing bar on the trailing flank of rear side cabinet door, and the plumbing bar is worn
Go out on the end of clamping block to be provided with for locking the through hole that plug-in unit is passed through;The locking plug-in unit is lock pin or latch.
The port of rotating shaft manipulation cabinet door of the driving termination on front side of switch cubicle stretches out, and is set on the leading flank of the cabinet door
It is equipped with fixed plate, the fixed plate and is provided with the mounting hole corresponding with port, is provided with the mounting hole and stretches into port
And through the spacing ring-shaped rubber seal of cabinet door, capping has a pressing plate on the front side port of ring-shaped rubber seal, described
One end of pressing plate is hinged with fixed plate, and the other end of pressing plate is provided with the latch-up structure being engaged with the fixed plate other end.
The front end of the ring-shaped rubber seal is provided with annular protrusion, and the rear end of ring-shaped rubber seal, which is provided with, to be stretched into
Extension pipe portion in port, the lateral wall of the extension pipe portion is arranged at intervals with several spacing preiections on rear side of cabinet door,
All portions of the port are arranged at intervals with several and are passed through for spacing preiection and realize ring after the rotation of ring-shaped rubber seal
The spacing breach of shape rubber seal;The fixed plate is fixed through the rivet longitudinally through cabinet door, above and below the side of fixed plate one
Portion is respectively arranged with the flanging turned to front side, and one end of the pressing plate, which is vertically provided with articulated section, the articulated section, to be provided with
Upper and lower side is each passed through the hinging pin shaft of two flangings;The latch-up structure includes being arranged at the fixed plate other end and turning to front side
First folded plate, the other end of the pressing plate is provided with right on the second folded plate turned to front side, first folded plate and the second folded plate
Lock hole should be provided with;It is located in the cabinet door on rear side of port and is additionally provided with elastic caoutchouc shrouding, the elastic caoutchouc shrouding
It is provided with for rotating the through hole that the drive end of screw rod is passed through.
In the present invention, emergency trip operating mechanism not only compact conformation, and being easy under cabinet door closure state, partition door behaviour
Make emergency trip button, safe, speed is fast, is prevented effectively from potential safety hazard.
In the present invention, intermediate switchgear cabinet cabinet door door opening state earthed switch operating shaft blocking mechanism, the blocking mechanism is not
Only compact conformation, and can prevent operating shaft from rotating in cabinet door opening, it is to avoid the feelings of error operation of grounding switch occur
Condition occurs;So when personnel's drilling inside switch cabinet is safeguarded, as long as cabinet door is opened, earthed switch is to operate, and is opened
The part closed in cabinet can just be in ground state all the time, be effectively protected personal security.
In the present invention, intermediate switchgear cabinet cabinet door is closed door state blocking mechanism and is not only simple in structure, and in earthed switch
It can prevent cabinet door from opening under off-state, and the installation accuracy of cabinet door is required to reduce, save the workload of installation and debugging,
Improve the production efficiency of switch cubicle.
The present invention is avoided that dust passes through by setting safeguard structure in the cabinet door passage port residing for driving termination external part
Port enters in cabinet, so that the degree of protection at door of switch cabinet is promoted to IP4X, and also this safeguard structure can be prevented effectively
Electric arc arc light leaks, prevent operating personnel switch cubicle annex, with regard near operation or tour when by electricity wound.
Brief description of the drawings
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Accompanying drawing 1a is the schematic diagram of switch cubicle emergency trip operating mechanism of the present invention;
Accompanying drawing 1b is the A-A cut-away illustrations of switch cubicle emergency trip operating mechanism of the present invention;
Accompanying drawing 1c is the B-B cut-away illustrations of switch cubicle emergency trip operating mechanism of the present invention;
Accompanying drawing 1d is the use schematic diagram of switch cubicle emergency trip operating mechanism of the present invention;
Accompanying drawing 2a is the schematic diagram that cabinet door of the present invention closes door state blocking mechanism(Earthed switch off-state);
Accompanying drawing 2b is the A-A cut-away illustrations that cabinet door of the present invention closes door state blocking mechanism;
Accompanying drawing 2c is the B-B cut-away illustrations that cabinet door of the present invention closes door state blocking mechanism;
Accompanying drawing 2d is the hook plate structural representation that cabinet door of the present invention closes door state blocking mechanism;
Accompanying drawing 3a is the schematic diagram of cabinet door door opening state earthed switch operating shaft blocking mechanism of the present invention;
Accompanying drawing 3b is the A-A cut-away illustrations of cabinet door door opening state earthed switch operating shaft blocking mechanism of the present invention;
Accompanying drawing 3c is the B-B cut-away illustrations of cabinet door door opening state earthed switch operating shaft blocking mechanism of the present invention;
Accompanying drawing 3d is the operating shaft released state schematic diagram of cabinet door door opening state earthed switch operating shaft blocking mechanism of the present invention;
Accompanying drawing 4a is the position view of the protection against electric shock structure of observation window of the present invention;
Accompanying drawing 4b is the enlarged diagram of the stretching passage port of present invention driving termination;
Accompanying drawing 4c is the schematic top plan view of the stretching passage port of present invention driving termination;
Accompanying drawing 4d is the B-B schematic cross-sectional views of the stretching passage port of present invention driving termination;
Accompanying drawing 4e is the port structural representation of the stretching passage port of present invention driving termination;
Accompanying drawing 4f is the structural representation of the stretching passage port ring-shaped rubber seal of present invention driving termination;
Accompanying drawing 5a is the schematic diagram of observation window protection against electric shock structure of the present invention;
Accompanying drawing 5b is the Mezzanine Map of observation window protection against electric shock structure of the present invention;
In Fig. 1 a-1d:1010- trip operation cabinet door 1011- notch 1020- installing plate 1021- articulated section 1022- roll over
Side 1023- lug boss 1024- drive rod 1025- insulated handle 1026- folded plate 1030- hinged seats 1031- sells
Axle 1032- torsion spring 1040- activation button 1050- sliding bar 1051- sleeve pipes 1052- front portions regulating bolt
The regulating bolt 1054- collets 1055- back-moving spring 1056- gag lever post 1060- emergency trips of 1053- rear portions are pressed
Button;
In Fig. 2 a-2d:Cabinet door 2011- doorframe 2012- notch 2013- supporting plate 2014- damping sealings on rear side of 2010-
Bar 2020- operation rotating shaft 2030- hook plate 2031- notch 2032- locking bolt 2040- snap close pieces 2041- limits
Position convex portion 2042- tight fixed bolt 2051- plumbing bar 2052- clamping block 2053- through holes;
In Fig. 3 a-3d:Cabinet door 3020- operations rotating shaft on rear side of 3010- switch cubicle 3011- doorframe 3012- folded plates 3013-
The elastic slide bar 3041- bodies of rod of 3021- drivings termination 3022- insulating barrier 3030- snap close piece 3031- breach 3040-
3042- spacing block set 3043- stage clip 3044- tight fixed bolt 3050- positive stop 3060- fixed plates 3061- rolls over
Side 3062- locking bolt 3063- through holes;
In Fig. 4 a-4f, 4010- rotating shafts manipulation cabinet door 4011- port 4012- breach 4013- rotates screw rod 4020- and consolidated
Fixed board 4021- rivet 4022- flangings 4023- the first folded plate 4024- lock hole 4030- ring-shaped rubber seals
4031- annular protrusions 4032- extension pipe portion 4033- spacing preiection 4040- pressing plate 4041- articulated section 4042- hinges
Pin axle 4043- the second folded plate 4044- lock hole 4050- elastic caoutchouc shroudings;
In Fig. 5 a-5b, 1- earth cables;The big shape holes of 2-;3- bolts;4- wire nettings;5- switch cubicles are used to observe operating mode in cabinet
Cabinet door;6- window body glass;7- ground strips;8- interlayers.
Embodiment
As shown in drawings, it is tight provided with switch cubicle at a kind of safe intermediate switchgear cabinet, the cabinet door of the switch cubicle
Jerk lock operating mechanism;Inside switch cabinet closes door state blocking mechanism and cabinet door door opening state earthed switch operating shaft provided with cabinet door
Blocking mechanism.
The switch cubicle emergency trip operating mechanism includes being arranged at the installation of the rear side of switch cubicle trip operation cabinet door 1010
Plate 1020 a, side of the installing plate 1020 is hinged with being arranged at the hinged seat 1030 of the rear side of cabinet door 1010, installing plate
It is provided with 1020 and passes cabinet door from back to front for the drive division that drive installation plate 1020 is rotated around hinged seat 1030, the cabinet
The downside for being located at hinged seat 1030 on door 1010 is provided with the activation button 1040 for passing through cabinet door 1010 from front to back, described to install
The lower, transverse of plate 1020 be provided with one end after installing plate 1020 is rotated be located at the rear side of activation button 1040 and the other end be located at it is tight
The sliding bar 1050 of the anxious front side of trip button 1060.
The cabinet door door opening state earthed switch operating shaft blocking mechanism, including be longitudinally disposed in switch cubicle for driving
The operation rotating shaft 3020 that earthed switch is opened and closed, the front end of the operation rotating shaft 3020 is provided with driving termination 3021 and by switch cubicle
3010 front sides are stretched out, and the rear end of operation rotating shaft 3020 is supported on rear side of switch cubicle on the doorframe of cabinet door 3013, the operation rotating shaft
Rearward end on and be provided with snap close piece 3030 on the inside of the doorframe, the upper end side of the snap close piece 3030 is set to recessed
It is located in sunken breach 3031, the switch cubicle on the upside of snap close piece and is vertically arranged with an elastic slide bar 3040, the elasticity is sliding
The rear end of bar 3040 is stretched out and is connected in rear side cabinet door locking in rear side cabinet door, elasticity by the doorframe of cabinet door on rear side of switch cubicle
It is provided with slide bar 3040 for being moved rearwards by and falling into elastic slide bar in rear side cabinet door opening in breach and lock
Part is engaged the positive stop 3050 for stopping that operation rotating shaft 3020 is rotated.
After the cabinet door closes door state blocking mechanism including being arranged on rear side of switch cubicle and being hinged with switch cubicle side
Sidecar door 2010;The vertical front side portion being provided with hook plate 2030, the hook plate 2030 of the opposite side of the cabinet door is provided with neck, institute
Stating to be located on doorframe 2011 operates the side of rotating shaft 2020 longitudinally to offer the notch penetrated for hook plate 2030 in switch cubicle
2012, a side of the snap close piece 2040 is provided with the stopper protrusion 2041 for being embedded in neck.
At the switch cubicle emergency trip operating mechanism, the top of the side of installing plate 1,020 1, which is provided with, to stretch out
Articulated section 1021, the upper and lower sides of the articulated section 1021 are respectively arranged with the flanging 1022 turned to rear side, the hinged seat
Vertically the bearing pin 1031 that upper and lower side is each passed through articulated section flanging 1022 is equipped with 1030;The middle part of bearing pin 1031 is equipped with
One side is connected on hinged seat 1030 and the other end is connected to the torsion spring 1032 on articulated section;Positioned at the upside of articulated section 1021
Lug boss 1023 forward is provided with front side of flanging, the lug boss 1023 passes the notch being arranged in cabinet door from back to front
1011 and a drive rod 1024 is connected with, the other end of the drive rod is fixed with insulated handle 1025 to form drive division;Institute
Stating sliding bar 1050 includes sleeve 1051, and the two side ends of the bottom of installing plate 1020 are respectively arranged with the folded plate turned to rear side
1026, the two ends of described sleeve pipe 1051 pass bifoldable plate 1026 respectively, and one end of sleeve pipe 1051 is bolted with anterior regulating bolt
1052, the other end of sleeve pipe is bolted with rear portion regulating bolt 1053, and the other end of the rear portion regulating bolt 1053 is fixed with absolutely
Edge block 1054;It is equipped with back-moving spring 1055, sleeve pipe 1051 and is also radially worn between bifoldable plate in described sleeve pipe 1051
There is the gag lever post 1056 abutted against with the one end of back-moving spring 1055;One end of the sliding bar 1050 is after the rotation of installing plate 1020
Abutted against with activation button 1040, the activation button 1040 is insulation button.
The Protective lock covered in activation button is additionally provided with the cabinet door.
Switch cubicle, which is used to observe to be provided with observation window, observation window at the cabinet door 5 of operating mode in cabinet, is provided with protection against electric shock structure;It is described
Protection against electric shock structure at observation window includes window body glass 6, ground strip 7 and earth cable 1;Interlayer 8, institute are set in the window body glass
Interlayer is stated built with wire netting 4;The wire netting 4 is connected with earth cable 1 with ground strip 7;The ground strip 7 is fixed on cabinet door
On 5, the conducting position of ground strip 7 connects with the conducting position of cabinet door;At protection against electric shock structure at the observation window, the ground connection
Piece is fixed in cabinet door 5 with bolt 3, and the conducting position of ground strip connects through bolt with the metal part of cabinet door;The forms glass
Glass is put together by layer glass;The window body glass is installed on the inside of door of switch cabinet, at the cabinet door adjacent with window body glass
Offering multiple big shape holes 2 is used to observe operating mode in cabinet;The window body glass is safety glass;The ground strip quantity be two and
It is parallel to each other, the window body glass is gripped by two ground strips, window body glass is adjacent and parallel with cabinet door with cabinet door inner face.
At the cabinet door door opening state earthed switch operating shaft blocking mechanism, set on the doorframe 3011 of the rear side cabinet door
There is the fixed plate 3060 being provided with the folded plate 3012 turned to inner side, the folded plate 3012 for installing elastic slide bar, it is described solid
The front and rear side of fixed board is respectively arranged with flanging 3061;The elastic slide bar 3040 includes the bar that front end is provided with spacing block set 3042
Body 3041, the body of rod 3,041 two flangings 3061 from front to back longitudinally through fixed plate 3060 and the doorframe for passing rear side cabinet door
3011, the positive stop 3050 is fixed on the body of rod and between two flangings 3061 of fixed plate, is located on the body of rod
Stage clip 3043 is also equipped between flanging 3061 on front side of positive stop 3050 and fixed plate;The positive stop 3050 is through tightening
Bolt 3044 is fixed on the body of rod 3041;The fixed plate 3060 is fixed on folded plate 3012 through locking bolt 3062, positioned at solid
Flanging bottom on front side of fixed board be additionally provided with for operating shaft longitudinally through through hole 3063.
The cabinet door is closed at door state blocking mechanism, is hung down on the doorframe 2011 positioned at the side of notch 2012 provided with support
With rear side cabinet door phase when being provided with plate 2013, the back end surface of the supporting plate 2013 for the conjunction door state of rear side cabinet door 2010
The damping sealing strap 2014 of abutting;The snap close piece 2040 is fixed on the rear side of operation rotating shaft 2020 through radial direction tight fixed bolt 2042
On end;The latching device being engaged with rear side cabinet door 2010 is additionally provided with the doorframe 2011;The latching device includes
It is located in the plumbing bar 2051 on doorframe 2011, the rear side cabinet door 2010 and is provided with the through hole passed for plumbing bar 2051, position
In being additionally provided with the clamping block 2052 that is passed for plumbing bar 2051 on the trailing flank of rear side cabinet door 2010, the plumbing bar 2051 is passed
It is provided with the end of clamping block 2052 for locking the through hole 2053 that plug-in unit is passed through;The locking plug-in unit is lock pin or latch.
The port 4011 of rotating shaft manipulation cabinet door 4010 of the driving termination on front side of switch cubicle stretches out, the cabinet door 4010
Leading flank on be provided with fixed plate 4020, the fixed plate 4020 and be provided with the mounting hole corresponding with port 4011, institute
State to be provided with mounting hole and stretch into port 4011 and through the spacing ring-shaped rubber seal 4030 of cabinet door, positioned at ring-shaped rubber sealing
Capping has a pressing plate 4040 on the front side port of part 4030, and one end and the fixed plate 4020 of the pressing plate 4040 are hinged, pressing plate
4020 other end is provided with the latch-up structure being engaged with the other end of fixed plate 4020.
The front end of the ring-shaped rubber seal 4030 is provided with after annular protrusion 4031, ring-shaped rubber seal 4030
End is provided with the extension pipe portion 4032 stretched into port, and the lateral wall of the extension pipe portion 4032 is arranged at intervals with several and is located at
Spacing preiection 4033 on rear side of cabinet door, all portions of the port 4011 are arranged at intervals with several and passed through for spacing preiection 4033
And realize the spacing breach 4012 of ring-shaped rubber seal after the rotation of ring-shaped rubber seal;The fixed plate 4020 is through longitudinal direction
Rivet through cabinet door 4010 is fixed, and the top and the bottom of the side of fixed plate 4,020 1 are respectively arranged with the flanging 4022 turned to front side,
One end of the pressing plate 4040, which is vertically provided with, to be provided with upper and lower side in articulated section 4041, the articulated section 4041 and is each passed through two
The hinging pin shaft 4042 of flanging;The latch-up structure includes being arranged at the fixed plate other end and turns the first folded plate to front side
4023, the other end of the pressing plate is provided with the second folded plate 4043 turned to front side, the folded plate of the first folded plate 4023 and second
Lock hole 4024 is correspondingly arranged on 4043;It is located in the cabinet door on rear side of port and is additionally provided with elastic caoutchouc shrouding 4050, institute
State and be provided with elastic caoutchouc shrouding 4050 for rotating the through hole that the drive end of screw rod is passed through.
Embodiment 1:
The application method of switch cubicle emergency trip operating mechanism is as follows;Installing plate original state is the trailing flank for being covered in cabinet door
On.During operation, installing plate is rotated 90 ° around hinged seat by insulated handle, make installing plate and cabinet door in vertical state, while separately
One hand promotes activation button from front to back, so that sliding bar is slided backward, the other end of sliding bar is driven emergency trip
Button.After the completion of operation, insulated handle is unclamped, installing plate is that can be resetted under the active force of torsion spring.
Embodiment 2:
Cabinet door close door state blocking mechanism method of work be;After rear side cabinet door closure, hook plate stretches into switch cubicle by notch not to be had,
Now the mechanism allows earthed switch(Earthing knife-switch)Operation, user will operate rotating shaft to rotate counterclockwise 90 °, complete earthed switch
Opening operation, after earthed switch disconnects, cabinet door is to be locked to open, and is now fixed on the lock in operation rotating shaft rearward end
The locking of sidecar door after the completion of in the neck of the stopper protrusion insertion hook plate of part.When need to open rear side cabinet door, it is necessary to turn clockwise
Dynamic operation rotating shaft closes earthed switch, and now the stopper protrusion of snap close piece is disengaged with neck, could open rear side cabinet door.
Embodiment 3:
The working method of cabinet door door opening state earthed switch operating shaft blocking mechanism is;Safeguarded when maintainer need to enter in cabinet
When, close earthed switch first(Earthing knife-switch is grounded), rear side cabinet door is then turned on, elastic slide bar is under the active force of stage clip to opening
The rear side for closing cabinet is slided, and blocks snap close piece so that positive stop is fallen into the breach of snap close piece, so that operation turns
Axle can not be rotated, and lock ground state, it is to avoid the situation generation that maloperation operation rotating shaft causes earthed switch to disconnect, protection occur
Enter the safety of cabinet personnel;After personnel's maintenance, which is finished, to be left out of cabinet, the rear side cabinet door of closure switch cabinet, rear side cabinet door is connected to
Cause elastic slide bar forward slip on elastic slide bar rear end, now spacing block set is deviate from from breach, operation rotating shaft can be rotated,
Operation can be now turned off to earthed switch.
Embodiment 4:
When needing to carry out turn to driving termination to drive operation rotating shaft, pressing plate 4040 is opened;With handle and driving termination pair
Connect and rotate manually.