CN202839435U

CN202839435U - Five-prevention operating mechanism for high-tension switch cabinet

Info

Publication number: CN202839435U
Application number: CN 201220552925
Authority: CN
Inventors: 黄成兴; 黄于谦
Original assignee: WENZHOU SHENGCHUAN ELECTROMECHANICAL MANUFACTURING CO LTD
Current assignee: WENZHOU SHENGCHUAN ELECTROMECHANICAL MANUFACTURING CO LTD
Priority date: 2012-10-25
Filing date: 2012-10-25
Publication date: 2013-03-27
Anticipated expiration: 2022-10-25

Abstract

The utility model relates to a five-prevention operating mechanism for a high-tension switch cabinet. The five-prevention operating mechanism comprises a mounting rack, one operating end and a control end. The operating end is used for controlling locking of a front door and break and close of a circuit breaker. A drive mechanism connected with the operating end is arranged on the mounting rack. The operating end comprises an operating panel provided with an operating port. The control end controls opening or closing of the operating end through a linkage. The drive mechanism comprises a drive shaft, a sheave mechanism and an auxiliary switch driving mechanism, wherein the drive shaft is rotatably disposed on the mounting rack, the sheave mechanism is used for driving an isolator and an earthing switch, the auxiliary switch driving mechanism is used for driving an auxiliary switch, the operating panel is disposed at one end of the drive shaft, and the sheave mechanism and the auxiliary switch drive mechanism are disposed at the other end of the drive shaft. The single operating end is provided, a transmission device between the control end and the sheave mechanism and another transmission device between the auxiliary switch and the drive mechanism are omitted, the operating mechanism is simplified, and accordingly the five-prevention operating mechanism is small in size, simple to operate, safe to use and capable of meeting the interlocking requirement for 'five preventions'.

Description

A kind of five-prevention operation mechanism of high-tension switch cabinet

Technical field

The utility model relates to the high-tension switch cabinet technical field, is specifically related to a kind of five-prevention operation mechanism of high-tension switch cabinet.

Background technology

The action need of the isolating switch of high-tension switch cabinet, earthed switch, circuit breaker, cabinet door satisfies " five is anti-" interlock requirement, prevents that on-load from dividing, closing isolating switch that is:; Prevent from dividing by mistake, closing circuit breaker; Prevent from being with ground wire to close isolating switch; Prevent live connection of ground wire; Prevent mistakenly entering charged chamber.

At present, the mechanical interlock mechanism of all kinds of high-tension switch cabinets is varied, the operation board of four transverse arrangement of turbo of employing that have, operation board connects upper and lower isolating switch and upper and lower earthed switch by connecting rod, handle hole is directly arranged on the operation board, handle hole is not provided with radical occlusion device, and itself and circuit breaker are interlocked complicated; This operating mechanism causes the switch cubicle lateral dimension large, floor space is large and high especially to operation requirements, need to lean on skilled operation personnel thinking sequentially to realize and come the console switch cabinet, because of handle hole without covering device, the easy wrong dislocation operation of operating personnel, namely damaged operating mechanism, and the switch of its connection is opened in the mistake damage, causes contingency.

The operating mechanism that has adopts four operating axis of passive type positive lock to realize upper and lower isolating switch in the switch cubicle, upper and lower earthed switch, circuit breaker, have four handle holes before the switch cubicle, operating grip can insert but can't rotate, and damages easily operating mechanism during this passive type interlocking device operation; Also there is handle hole to stop and adopts the multichip connection form, it is many to connect fulcrum, parts are many, high with the switch cubicle installation difficulty, successively operating sequence must be observed strict regulation, and these mechanical interlock mechanisms are all very complicated, poor reliability, this complicated machinery interlock complex operation, and possible misoperation, thus immeasurable loss caused.

Solve the defective of existing operating mechanism for high voltage switch cabinet, it is CN201120105055.0 " a kind of operating mechanism for high voltage switch cabinet " that the inventor has designed China Patent No. for this reason, and it adopts single control end, has solved the deficiency that traditional a plurality of control end exists; But isolating switch, earthed switch, circuit breaker in the applied high-tension switch cabinet of this operating mechanism for high voltage switch cabinet, can only in cabinet, adopt forward to install, transmission device (transmission device is gear train) need be set between the Geneva mechanism of operating side and driving isolation switch, earthed switch in its operating mechanism, the transmission direction that changes transmission device just can realize not in the control end of rotation direction intersection and the transmission between the Geneva mechanism, the setting of transmission device causes whole operating mechanism complex structure, drive path is long, causes operating the relatively poor defective of reliable transmission; For making each electric device characteristics of compact layout in the high-tension switch cabinet, high-tension switch cabinet body is narrowed down and operate reliable, the interior isolating switch of high-tension switch cabinet, earthed switch, circuit breaker adopt the side dress to arrange, above-mentioned like this operating mechanism for high voltage switch cabinet can't realize that high-tension switch cabinet is to the side dress layout of isolating switch, earthed switch and circuit breaker.

Summary of the invention

Deficiency for the prior art existence, the purpose of this utility model is to provide a kind of isolating switch in the high-tension switch cabinet of realizing, earthed switch, the five-prevention operation mechanism that circuit breaker adopts the side dress to arrange, and the five-prevention operation mechanism of this high-tension switch cabinet only has an operating side, volume is little, simple to operate and use safety, can satisfy the operating mechanism for high voltage switch cabinet of " five is anti-" interlock requirement, operating side and Geneva mechanism are directly installed on the driving shaft on it, realize control end direct controlling and driving isolating switch, earthed switch, the mechanism that greatly simplifies the operation, more convenient to operate and reliable.

For achieving the above object, the utility model provides following technical scheme: a kind of five-prevention operation mechanism of high-tension switch cabinet, include installing rack, the operating side, being used for control Qianmen locking and circuit breaker closes, the control end that divides, described installing rack is provided with the driving mechanism that is connected with the operating side, described operating side only has one, the operating side includes operation board, operation board is provided with operation port, described control end is controlled opening of described operating side through link gear, close state, described driving mechanism includes the driving shaft that is rotatably provided on the installing rack, be used for the driving isolation switch, the Geneva mechanism of earthed switch, be used for driving the auxiliary switch driving mechanism of auxiliary switch, it is characterized in that: described operation board is installed in realizes driving driving shaft rotation, other end mounting groove wheel mechanism and the auxiliary switch driving mechanism of described driving shaft fitting operation dish one end on the driving shaft.

By adopting technique scheme, the operating side, Geneva mechanism and auxiliary switch driving mechanism are installed on the driving shaft, when operation, only needing just can be through driving shaft by the control operation end, directly drive through Geneva mechanism, the auxiliary switch driving mechanism, realization is to isolating switch up and down, the up and down driving of earthed switch station and auxiliary switch control, do not need a plurality of control ends, a plurality of transmission mechanisms, can realize isolating switch, earthed switch, the driving of each station of auxiliary switch, use easily, the mechanism that simplifies the operation, and then so that volume is little, control end can also the control operation end open, close state, use safer.

The utility model further is set to: described auxiliary switch driving mechanism includes some eccentric wheels corresponding with the auxiliary switch station, eccentric wheel is fixedly arranged on the driving shaft, and the eccentric wheel that rotarily drives of described driving shaft rotates the driving that realizes the auxiliary switch station.

By adopting technique scheme, driving shaft rotarily drives eccentric wheel and rotates, and realizes controlling auxiliary switch under the different station by eccentric eccentric structure, and the driving mechanism structure of this auxiliary switch is simple, arranges easy for installationly, and it is reliable to drive control.

The utility model further is set to: described control end includes centering block, centering block rotates through Control Shaft and is arranged on the installing rack, described link gear includes the first locking plate that is arranged on slip on the installing rack, the second locking plate and operation port valve tongue piece, described the first locking plate, the second locking plate and operation port valve tongue piece all are connected with centering block, the cabinet door lock hole place of described the first locking plate one end slip to the installing rack and the high-voltage switch cabinet door hook lock of locking only cooperates, installing rack is positioned at cabinet door lock hole place and is provided with when high-voltage switch cabinet door is opened and the spacing Qianmen locking sheet that cooperates of the first locking plate, front locking sheet and the spacing realization of the first locking plate are to the spacing locking of centering block, this Qianmen locking sheet rotates through rotating shaft and is arranged on the installing rack, Qianmen locking sheet is provided with back-moving spring, described operation board is provided with the connection collar, the adapter sleeve ring-side wall is provided with planar end surface, described the second locking plate is provided with the circular arc recess, described operation port valve tongue piece is provided with the baffle plate that is complementary with operation port with respect to the other end that is connected an end with centering block, and link gear also includes the circuit breaker interlock assembly that is connected and drives circuit breaker release be used to being connected with centering block.

By adopting technique scheme, be used for being connected with the release of circuit breaker by the circuit breaker interlock assembly, when the rotation of operation centering block, the trip status by circuit breaker interlock assembly realization circuit breaker can prevent from operating a switch under the on-load state like this; Rotate the switching that centering block is realized the high-tension switch cabinet different conditions by Control Shaft simultaneously, the interaction relation by centering block and the first locking plate, the second locking plate, operation port valve tongue piece and circuit breaker interlock assembly simultaneously, by cooperating by the first locking plate and Qianmen locking sheet and high-voltage switch cabinet door latch hook, the second locking plate and the cooperation that is connected the collar, realize five anti-interlockings of high-tension switch cabinet, the link gear structure of this structure arranges simply, and it is reliable to have interlocking, prevents the unnecessary danger that misoperation causes.

The utility model further is set to: the connecting rod that described circuit breaker interlock assembly includes drive block and is connected with circuit breaker release, drive block includes and rotates the axis body that is arranged on the installing rack, axis body is provided with the first linking arm and the second linking arm that departs from the axis body center of rotation, the first linking arm is hinged on the second locking plate with respect to be connected on the other end of an end the second linking arm and rod hinge connection with centering block.

By adopting technique scheme, the second locking plate is implemented in the interlocking of control end and circuit breaker release by drive block and connecting rod, and the interlock assembly structure of this circuit breaker arranges simply.

The utility model further is set to: described the first locking plate is connected with the padlock spare of locking the first locking plate when the high-tension switch cabinet operating state.

By adopting technique scheme, when the high-tension switch cabinet operating state, padlock spare is the first locking plate locking, padlock spare arrange padlock or latch or around on iron wire, realize the service position locking of high-tension switch cabinet, avoid closing easily the make and break high-tension switch cabinet.

The utility model further is set to: described Geneva mechanism includes through fixed axis and is arranged on swivelling chute arm on the installing rack, be arranged on the sheave on the driving shaft, be installed with trundle on the sheave, described swivelling chute arm is provided with the driving groove that described trundle is complementary, and described sheave rotation realizes up and down isolating switch, the up and down driving of earthed switch station through the rotation of trundle driven rotary groove arm.

By adopting technique scheme, driving shaft rotarily drives sheave, by the rotation of the trundle driven rotary groove arm on the sheave, the Geneva mechanism of this structure only needs simple the connection to cooperate and can realize, so that processing is simple, transmission performance is reliable, and is directly driven by driving shaft, need not drive mechanism, simple in structure, control is reliable.

Below in conjunction with accompanying drawing the utility model is further described.

Description of drawings

Fig. 1 is the utility model specific embodiment structural representation;

Fig. 2 is the utility model specific embodiment driving mechanism structure schematic diagram;

Fig. 3 is link gear structural representation under the utility model specific embodiment inspecting state;

Fig. 4 is link gear structural representation under the utility model specific embodiment operating state;

Fig. 5 is link gear structural representation under the utility model specific embodiment mode of operation;

Fig. 6 is the utility model specific embodiment operation board, the syndeton schematic diagram that connects the collar, gear dish;

After Fig. 7 is the utility model specific embodiment excision operation board part, the syndeton schematic diagram of operation board, the connection collar, gear dish;

Fig. 8 is the fit structure schematic diagram of the utility model specific embodiment padlock spare and the first locking plate.

The 1-installing rack, the 10-front plate, 100-operates crank slot, the 11-middle clamp plate, 12-rear plate, 13-side supporting bracket, the 2-operating side, 20-operation board, 200-operation port, 21-connects the collar, 210-planar end surface, 22-gear dish, 220-operation gear hole, the spacing finger piece of 221-, 2210-position-limitting pin, 222-gear spring, 223-steel pricker, 3-control end, the 30-centering block, 300-compresses wheel, the 301-jointed shaft, the 302-hinge, the 31-Control Shaft, 32-controls handgrip, the 320-steel ball, 321-spring, 4-driving mechanism, the 40-driving shaft, 41-auxiliary switch driving mechanism, 410-eccentric wheel, the 42-Geneva mechanism, 420-fixed axis, 421-swivelling chute arm, 4211-pull bar linking arm, 422-sheave, 4220-trundle, the 5-link gear, 50-the first locking plate, 500-locking hole, 51-the second locking plate, 510-circular arc recess, 52-operation port valve tongue piece, the 520-baffle plate, 521-tongue piece back-moving spring, 53-positioning pilot hole, the 530-alignment pin, 54-circuit breaker interlock assembly, 540-drive block, the 5400-axis body, 5401-the first linking arm, 5402-the second linking arm, the 541-connecting rod, the 55-latch hook, 56-Qianmen locking sheet, 560-rotating shaft, the 6-auxiliary switch, 7-padlock spare, 70-locking shaft, 700-padlock hole, the 71-lock sleeve, the 710-breach, the upper isolating switch identification label of 81-, isolating switch identification label under the 82-, on the 83-, lower earthed switch identification label, the 84-sign;

Embodiment

To shown in Figure 8, the utility model disclose a kind of five-prevention operation mechanism of high-tension switch cabinet, includes installing rack 1 such as Fig. 1, and operating side 2 is used for control Qianmen locking and circuit breaker closes, the control end 3 that divides; Installing rack 1 is provided with the driving mechanism 4 that is connected with operating side 2, and driving mechanism 4 is erected between the middle clamp plate 11 and rear plate 12 of installing rack 1, and control end 3 is through the open and close state of the described operating side 2 of link gear 5 controls; Described driving mechanism 4 includes in this specific embodiment of driving shaft 40(that is rotatably provided on the installing rack 1, driving shaft 40 passes front plate 10, middle clamp plate 11, the rear plate 12 of installing rack 1), be connected the auxiliary switch driving mechanism 41 that is used for control auxiliary switch 6 with driving shaft 40, the Geneva mechanism 42 that is used for driving isolation switch, earthed switch that is connected with driving shaft 40; Described operating side 2 only has one, operating side 2 includes operation board 20, operation board 20 is provided with and offers the operation crank slot 100 corresponding with operation port 200 on the front plate 10 of the corresponding installing rack of operation port 200(), operation board 20 is packed in realizes on the driving shaft 40 that operating side 2(is namely by operating operation dish 20) drive driving shaft 40 rotations, described Geneva mechanism 42 and auxiliary switch driving mechanism 41 are set directly on the other end of driving shaft 40 fitting operation dishes 20 1 ends.The operating side 2 direct driving shafts 40 that drive can be realized Geneva mechanism 42 and auxiliary switch driving mechanism 41 are driven control like this, the centre need not to pass through transmission device, can realize driving control, greatly simplify operating mechanism, improve the operation control reliability and stability of operating mechanism.

In this specific embodiment, the operating grip structure of operating operation end 2 is, can be set in location hole on the driving shaft and the 200 interior realizations of update port to the action bars of operation board operation but arrange one in its end; Easy to operate like this.

In the utility model, described Geneva mechanism 42 is erected between the middle clamp plate 11 and rear plate 12 of installing rack 1, can certainly be installed in rear plate 12 rear sides, but cause so whole five-prevention operation mechanism structure not compact, so the utility model preferentially is installed between middle clamp plate 11 and the rear plate 12, Geneva mechanism 42 includes through fixed axis 420 and is arranged on swivelling chute arm 421 on the installing rack 1, be arranged on the sheave 422 on the driving shaft 40, be installed with trundle 4220 on the sheave 422, described swivelling chute arm 421 is provided with the driving groove 4210 that is complementary with described

trundle

4220, and 422 rotations of described sheave realize isolating switch up and down through 421 rotations of trundle 4220 driven rotary groove arms, the up and down driving of earthed switch station.All be hinged with pull bar linking arm 4211 on the described swivelling chute arm 421, pull bar linking arm 4211 by external pull bar be connected with isolating switch, earthed switch realize to isolating switch, each station of earthed switch minute, close driving.This arranges down, and Geneva mechanism 42 is directly driven by driving shaft 40, need not unnecessary transmission mechanism, and Geneva mechanism 42 is simple in structure.

In the utility model specific embodiment, described isolating switch includes upper and lower isolating switch, and earthed switch includes upper and lower earthed switch; Described swivelling chute arm 421 has four, described sheave 422 is two, fixed axis 420 is two, two swivelling chute arms 421 are set respectively on each fixed axis 420, when described driving shaft 40 rotation, press isolating switch by sheave 422, earthed switch closes, divide order to drive one by one described four swivelling chute arms, 421 motions, realization is to upper isolating switch, lower isolating switch, upper earthed switch, the control of lower earthed switch, can not occur, lower isolating switch and upper, lower earthed switch is with dividing, with closing phenomenon (namely prevent band isolation splice grafting ground, band ground connection is closed isolation).

In the utility model, described auxiliary switch driving mechanism 41 includes some eccentric wheels 410 corresponding with auxiliary switch 6 stations, eccentric wheel 410 is fixedly arranged on the driving shaft 40, the installation site of each eccentric wheel 410 is corresponding with the station of auxiliary switch 6, and the eccentric wheel 410 that rotarily drives of described driving shaft 40 rotates the driving that realizes auxiliary switch 6 stations.

In the utility model, described control end 3 includes centering block 30, centering block 30 rotates through Control Shaft 31 and is arranged between the front plate 10 and middle clamp plate 11 of installing rack 1, control handgrip 32 is set on the Control Shaft 31, on the control handgrip 32 steel ball 320 and spring 321 are set, front plate 10 at installing rack 1 arranges three the gear holes corresponding with the operating mechanism for high voltage switch cabinet state, cooperate with the gear hole by steel ball 320, spring 321 when control handgrip 32 control Control Shafts 31 rotate, the realization gear is stirred and is put in place; Described link gear 5 is arranged between the front plate 10 and middle clamp plate 11 of installing rack 1, and link gear 5 includes the first locking plate 50, the second locking plate 51 and the operation port valve tongue piece 52 of slip on the front plate 10 that is arranged on installing rack 1; Described the first locking plate 50, the second locking plate 51 and operation port valve tongue piece 52 all are connected with centering block 30; Described the first locking plate 50 is realized with centering block 30 hinged by the jointed shaft 301 that is arranged on the centering block 30, the first locking plate 50, be provided with two positioning pilot holes 53 on the second locking plate 51 and the operation port valve tongue piece 52, front plate 10 at installing rack 1 arranges alignment pin 530, the first locking plate 50, the second locking plate 51 and operation port valve tongue piece 52 are installed in by the positioning pilot hole 53 on it and realize the first locking plate 50 on alignment pin 530, the

second locking plate

51 and 52 slippages of operation port valve tongue piece are arranged on the front plate 10 of installing rack 1, described the first locking plate 50 1 end slips to the place, cabinet door lock hole on the installing rack 1 cooperates with latch hook 55 lockings on the high-voltage switch cabinet door, installing rack 1 is positioned at place, cabinet door lock hole side supporting bracket 13 is set, side supporting bracket 13 is provided with when high-voltage switch cabinet door is opened and the first locking plate 50 spacing Qianmen locking sheets 56 that cooperate, Qianmen locking sheet 56 and the 50 spacing realizations of the first locking plate are to the spacing locking of centering block 30, this Qianmen locking sheet 56 rotates through rotating shaft 560 and is arranged on the front plate 10 of installing rack 1, Qianmen locking sheet 56 is provided with and makes Qianmen locking sheet 56 get back to back-moving spring 561 with corresponding position, the first locking plate 50 position, and back-moving spring 561 is for being arranged on the torsion spring in the rotating shaft 560; When high-voltage switch cabinet door is not closed, under the torsion spring effect, Qianmen locking sheet 56 is in and corresponding position, the first locking plate 50 position, 56 pairs of the first locking plates 50 of Qianmen locking sheet form spacing, the first locking plate 50 can't move axially, then realize the locking to centering block 30, when shutting high-voltage switch cabinet door, the latch hook 55 of high-tension switch cabinet pushes away Qianmen locking sheet 56, the hook groove of latch hook 55 is corresponding with the first locking plate 50 positions, and then the first locking plate 50 slips enter in the hook groove of latch hook 55 and cooperate with latch hook 55 lockings, when realizing that like this high-voltage switch cabinet door is not closed, can't the operate high pressure switch cubicle, prevent charged interval; Simultaneously, be provided with emergency unlocking device at high-voltage switch cabinet door, be specially, at high-voltage switch cabinet door two long guiding holes with the same axial setting of latch hook 55 locked grooves are set, by screw-nut latch hook 55 is locked on long guiding hole, when emergency release opens the door, push away latch hook 55 downwards by loose nut, make latch hook 55 hook grooves break away from first chain 50 position downwards, realized emergency release.Described operation board 20 is provided with and connects the collar 21, connects the collar 21 sidewalls and is provided with planar end surface 210, and described the second locking plate 51 is provided with circular arc recess 510, the second locking plates 51 by hinge 302 and centering block 30 hinged realization interlocks; Described operation port valve tongue piece 52 is provided with the baffle plate 520 that is complementary with operation port 200 with respect to the other end that is connected an end with centering block 30, described baffle plate 520 and operation port 200 be complementary for baffle plate 520 under high-tension switch cabinet work, inspecting state, can block well operation port 200, can not be to these operation port 200 operations; In this specific embodiment, the other end that described operation port valve tongue piece 52 arranges baffle plate 520 1 ends arranges tongue piece back-moving spring 521, arrange one at centering block 30 and compress wheel 300, compressing wheel 300 compresses with operation port valve tongue piece 52 and to cooperate, be in work at high-tension switch cabinet, during inspecting state, operation port valve tongue piece 52 resets under the effect of tongue piece back-moving spring 521, operation port 200 is blocked, under high-tension switch cabinet is in mode of operation, centering block 30 drives of control end 3 compress wheel 300 and press down operation port valve tongue piece 52, operation port valve tongue piece is about to operation port 200 for 52 times and is exposed, certainly operation port valve tongue piece 52 also can directly adopt to arrange on long guide hole and the centering block 30 and compress axle and cooperatively interact and realize interlock, when the high-tension switch cabinet operating position, cause circuit breaker to be in gate-dividing state, prevent that on-load from operating a switch.

When further making high-tension switch cabinet in running order, prevent that misoperation control end 3 from making the high-tension switch cabinet outage, described the first locking plate 50 is connected with the padlock spare 7 of locking the first locking plate 50 when the high-tension switch cabinet operating state; Concrete is: front plate 10 rotations at installing rack 1 arrange padlock spare 7, and padlock spare 7 comprises locking shaft 70 and lock sleeve 71, and lock sleeve 71 1 ends are fixed on the front plate 10 of installing rack 1, and the other end is provided with and padlock locking engages indentation 710; Locking shaft 70 1 ends are the square latch that locking hole 500 cooperates on the first locking plate 50, locking hole 500 is the two ends strip, with square latch width adequate, the middle part is the longitudinal hole section that locking cooperates after can rotating for square latch, and locking shaft 70 other ends are provided with the padlock cover with locking shaft 70 one; The square latch of described locking shaft 70 passes lock sleeve 71, inserts in the locking hole 500 of the first locking plate 50, and lock sleeve 71 embeds in the padlock cover; When high-tension switch cabinet is in running order, the square latch of locking shaft 70 is positioned at locking hole 500 middle part longitudinal hole sections, rotate locking shaft 70, it is corresponding with the breach 710 of lock sleeve 71 that the padlock of locking shaft 70 puts padlock hole 700, can add that padlock carries out locking at padlock spare 7, with locking shaft 70 lockings, then with the first locking plate 50 lockings, prevent misoperation control end 3 and mistake minute, close circuit breaker.

As shown in Figure 1, for on the handled easily personnel know, lower isolating switch, on, lower earthed switch operating position, in the utility model, on the front plate 10 of installing rack 1, also be provided with the switching manipulation direction board, direction board is provided with isolating switch identification label 81, lower isolating switch identification label 82, on, lower earthed switch identification label 83, arrange on the operation board 20 with direction board on the sign 84 of the corresponding display operation of each identification label position, when operation board 20 being rotated to an action, label can clearly tell operating personnel to isolating switch, the operation of earthed switch.

In the utility model, described link gear 5 also includes the circuit breaker interlock assembly 54 that is connected and drives circuit breaker release be used to being connected with centering block 30.In this specific embodiment, circuit breaker interlock assembly 54 is connected with the second locking plate 51, can certainly directly circuit breaker interlock assembly 54 be connected with the Control Shaft 31 of control end 3; But be arrangement convenience, the connecting rod 541 that described circuit breaker interlock assembly 54 includes drive block 540 and is connected with circuit breaker release, drive block 540 includes the axis body 5400 that rotates on the middle clamp plate 11 that is arranged on installing rack 1, axis body 5400 is installed on the fixed axis, axis body 5400 is provided with the first linking arm 5401 and the second linking arm 5402 that departs from axis body 5400 centers of rotation, the first linking arm 5401 is hinged on the second locking plate 51 with respect to being connected on the other end of an end with centering block 30, and the second linking arm 5402 is hinged with connecting rod 541.

Link through the centering block 30 of the second locking plate 51 with control end 3 by circuit breaker interlock assembly 54, only when control end 3 rotates to the high-tension switch cabinet operating state, circuit breaker could close a floodgate, it is the arc surface position that the circular arc recess 510 of the second locking plate 51 is positioned at the non-flat endface position of sidewall that connects the collar 21, the second locking plate 51 lockings, be locking centering block 30, the first locking plate 50, the cabinet door can't be opened, and prevents from that the staff is charged to be strayed into maintenance; When control end 3 rotated to the maintenance of high-voltage switch cabinet state, this circular arc recess 510 was positioned at the below that connects the collar 21, the maintenance of can opening the door, and operation port 200 is blocked; When control end 3 rotated to the high-tension switch cabinet mode of operation, this circular arc recess 510 was positioned at and connects the collar 21 tops, and the operation port 200 on the operation board 20 is unlocked at this moment, and operation board 20 can rotate.

In the utility model, for realizing that the operating side operation puts in place, the other end that axially is connected an end on the described connection collar 21 with operation board 20 arranges gear dish 22, be provided with the operation gear hole 220(operation gear hole 220 corresponding with the operation position on the gear dish 22 and have three), middle clamp plate 11 at installing rack 1 is provided with the installing hole corresponding with operating gear, be provided with gear spring 222 and steel pricker 223 in the installing hole, when operation board 20 rotate in place, gear spring 222 pushing steel prickers 223 enter the 220 interior realization gear indications of operation gear hole, be provided with the spacing finger piece 221 of realizing after the operating side operation is finished at gear dish 22 simultaneously, be arranged on operating side 2 at installing rack 1 middle clamp plate 11 and finish up and down isolating switch, when earthed switch closes minute operation up and down, two position-limitting pins 2210 spacing to spacing finger piece 221.

The utility model high-tension switch cabinet send electric step: must close the door first, (as high-voltage switch cabinet door do not close, the centering block of control end is by locking, operation port can't be opened), divide circuit breaker, (operation port is unlocked before, and circuit breaker has been forced to separating brake), minute upper and lower earthed switch closes upper and lower isolating switch, close circuit breaker, send electric end of operation; Otherwise, be outage.

In project organization, satisfy isolating switch in the high-tension switch cabinet, earthed switch, circuit breaker and adopt side dress arrangement requirement, reach the cabinet compact conformation that narrows down; This five-prevention operation mechanism has solved the problem of sequentially being made mistakes and going beyond by front and back in operating in order, thereby has guaranteed that operating process meets operational procedure, reaches " five anti-" highly reliable requirements; This five-prevention operation mechanism omits transmission device and simplifies the auxiliary switch driving mechanism simultaneously, designs simplification, and operational stability and reliability strengthen.

Claims

1. the five-prevention operation mechanism of a high-tension switch cabinet, include installing rack, the operating side, being used for control Qianmen locking and circuit breaker closes, the control end that divides, described installing rack is provided with the driving mechanism that is connected with the operating side, described operating side only has one, the operating side includes operation board, operation board is provided with operation port, described control end is controlled opening of described operating side through link gear, close state, described driving mechanism includes the driving shaft that is rotatably provided on the installing rack, be used for the driving isolation switch, the Geneva mechanism of earthed switch, be used for driving the auxiliary switch driving mechanism of auxiliary switch, it is characterized in that: described operation board is installed in realizes driving driving shaft rotation, other end mounting groove wheel mechanism and the auxiliary switch driving mechanism of described driving shaft fitting operation dish one end on the driving shaft.

2. the five-prevention operation mechanism of high-tension switch cabinet according to claim 1, it is characterized in that: described auxiliary switch driving mechanism includes some eccentric wheels corresponding with the auxiliary switch station, eccentric wheel is fixedly arranged on the driving shaft, and the eccentric wheel that rotarily drives of described driving shaft rotates the driving that realizes the auxiliary switch station.

3. the five-prevention operation mechanism of high-tension switch cabinet according to claim 1 and 2, it is characterized in that: described control end includes centering block, centering block rotates through Control Shaft and is arranged on the installing rack, described link gear includes the first locking plate that is arranged on slip on the installing rack, the second locking plate and operation port valve tongue piece, described the first locking plate, the second locking plate and operation port valve tongue piece all are connected with centering block, the cabinet door lock hole place of described the first locking plate one end slip to the installing rack and the high-voltage switch cabinet door hook lock of locking only cooperates, installing rack is positioned at cabinet door lock hole place and is provided with when high-voltage switch cabinet door is opened and the spacing Qianmen locking sheet that cooperates of the first locking plate, front locking sheet and the spacing realization of the first locking plate are to the spacing locking of centering block, this Qianmen locking sheet rotates through rotating shaft and is arranged on the installing rack, Qianmen locking sheet is provided with back-moving spring, described operation board is provided with the connection collar, the adapter sleeve ring-side wall is provided with planar end surface, described the second locking plate is provided with the circular arc recess, described operation port valve tongue piece is provided with the baffle plate that is complementary with operation port with respect to the other end that is connected an end with centering block, and link gear also includes the circuit breaker interlock assembly that is connected and drives circuit breaker release be used to being connected with centering block.

4. the five-prevention operation mechanism of high-tension switch cabinet according to claim 3, it is characterized in that: the connecting rod that described circuit breaker interlock assembly includes drive block and is connected with circuit breaker release, drive block includes and rotates the axis body that is arranged on the installing rack, axis body is provided with the first linking arm and the second linking arm that departs from the axis body center of rotation, the first linking arm is hinged on the second locking plate with respect to be connected on the other end of an end the second linking arm and rod hinge connection with centering block.

5. the five-prevention operation mechanism of high-tension switch cabinet according to claim 3, it is characterized in that: described the first locking plate is connected with the padlock spare of locking the first locking plate when high-voltage cabinet door is closed.

6. the five-prevention operation mechanism of high-tension switch cabinet according to claim 4, it is characterized in that: described the first locking plate is connected with the padlock spare of locking the first locking plate when high-voltage cabinet door is closed.

7. the five-prevention operation mechanism of high-tension switch cabinet according to claim 1, it is characterized in that: described Geneva mechanism includes through fixed axis and is arranged on swivelling chute arm on the installing rack, be arranged on the sheave on the driving shaft, be installed with trundle on the sheave, described swivelling chute arm is provided with the driving groove that described trundle is complementary, and described sheave rotation realizes up and down isolating switch, the up and down driving of earthed switch station through the rotation of trundle driven rotary groove arm.