CN103701058B - Switch cubicle interlocking device for cable vault door - Google Patents
Switch cubicle interlocking device for cable vault door Download PDFInfo
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- CN103701058B CN103701058B CN201410007822.2A CN201410007822A CN103701058B CN 103701058 B CN103701058 B CN 103701058B CN 201410007822 A CN201410007822 A CN 201410007822A CN 103701058 B CN103701058 B CN 103701058B
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Abstract
The present invention relates to a kind of switch cubicle interlocking device for cable vault door.Be made up of front door assembly and rear door assembly, there is between front door assembly and rear door assembly state rope and open and close rope; State rope connection sliding block door bolt, Qianmen button and back door button, open and close rope and connect front latch and rear bolt; Qianmen button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; Back door button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; The stroke of Qianmen button band movable slider door bolt or the stroke of back door button band movable slider door bolt are not enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch; The stroke that the stroke that Qianmen button band movable slider is fastened with a bolt or latch adds back door button band movable slider door bolt is then enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch.The interlocking that technical scheme keying rope of the present invention realizes front door assembly and rear door assembly opens and closes, realize the interlocking of Qianmen and back door slide block being fastened with a bolt or latch with state rope, by simple and effective way front door assembly and rear door assembly coupled together and realize the object of interlocking.
Description
Technical field
The present invention relates to the interlocking device of cabinet door, particularly relate to switch cubicle interlocking device for cable vault door.
Background technology
Middle-low voltage switch cabinet is built with the High Voltage such as circuit breaker, separator electricity equipment, and its voltage transmitted with ten thousand, it serves to show the huge of its electric energy transmitted in kilovolt meter, its power transmitted.Therefore, when installation, maintenance, maintenance etc. relate to the practical operation needing proximity switch cabinet, in order to avoid electric shock injury or unexpected powering up cause unnecessary consequence and heavy losses, propose five anti-requirements to switch cubicle in the industry, specific requirement is as follows:
1. prevent from dividing by mistake, closing circuit breaker.
2. prevent on-load from dividing, closing isolating switch.
3. prevent band cable address (conjunction) earth connection (earthed switch).
4. prevent line with ground (earthed switch) from closing circuit breaker (isolating switch).
5. prevent mistakenly entering charged chamber.
In order to reach five anti-requirements, people have designed multiple five anti-mechanisms, wherein, the interlock of switch cubicle cable chamber door and genuine switch and handcart coordinate, and realize the requirement of " preventing from being with cable address (conjunction) earth connection (earthed switch) " and " preventing mistakenly entering charged chamber ".The interlock of existing switch cubicle cable chamber door is very complicated, and especially the interlock at Qianmen and back door is realized by linkage, and number of parts is many, and Installation and Debugging bother.
In view of this, the invention provides a novel switch cubicle interlocking device for cable vault door.
Summary of the invention
The object of the present invention is to provide a kind of switch cubicle interlocking device for cable vault door, by simple and effective way, front door assembly and rear door assembly are coupled together, realize interlocking.
Another object of the present invention is to provide a kind of switch cubicle interlocking device for cable vault door, this interlock structure is simple, and parts are few, are easy to production and processing, is convenient to assembling.
In order to reach above-mentioned purpose, technical scheme of the present invention is as follows.
Switch cubicle interlocking device for cable vault door, is made up of front door assembly and rear door assembly, has state rope and open and close rope between front door assembly and rear door assembly; Front door assembly comprise front door frame, front latch, front knocker, Qianmen button, slide block door bolt, cutter slide block, door boit bracket, rear door assembly comprises rear door frame, rear bolt, rear knocker, back door button; Front door frame and door boit bracket are fixed on switch cubicle, front knocker is fixed on Qianmen, Qianmen button stretches out front door frame and abuts to Qianmen and buckle, slide block door bolt is through ground cutter slide block and by ground cutter slider locks in upper limit and lower limit, ground cutter slide block is installed on front door frame and also can moves up and down, front latch is installed on door boit bracket and also can moves up and down, and front latch and front knocker fasten; Rear door frame is fixed on switch cubicle, and rear knocker is fixed on back door, and rear bolt to be installed on rear door frame and can to move up and down, and rear bolt and rear knocker fasten, and back door button stretches out rear door frame and abuts to back door and buckle; Qianmen button, slide block door bolt, back door button and rear bolt have resetting device; State rope and open and close rope and form by rope sling and wire rope core, wire rope core is nested in rope sling, can reciprocating motion in rope sling; State rope connection sliding block door bolt, Qianmen button and back door button, open and close rope and connect front latch and rear bolt; Qianmen button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; Back door button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; The stroke of Qianmen button band movable slider door bolt or the stroke of back door button band movable slider door bolt are not enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch; The stroke that the stroke that Qianmen button band movable slider is fastened with a bolt or latch adds back door button band movable slider door bolt is then enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch.
In another embodiment, its right-hand member of the rope sling of state rope abuts to Qianmen button, and its left end abuts to back door button; Its right-hand member connection sliding block of the wire rope core of state rope is fastened with a bolt or latch, door frame after its left end connects.
In another embodiment, its upper end of rope sling opening and closing rope abuts to front latch, and its lower end abutment is to rear door frame; Its upper end of wire rope core opening and closing rope connects door boit bracket, bolt after its lower end connects.
In another embodiment, ground cutter slide block have the first lockhole and the second lockhole, the first lockhole locking upper limit, the second lockhole locking lower limit; Between first lockhole and the second lockhole, there is chute, the width of chute is less than the width of the first lockhole and the second lockhole, slide block door bolt has narrow portion and wide portion, the width of slide block door bolt narrow portion is less than chute, the width that slide block fastens wide portion with a bolt or latch is less than the first lockhole and the second lockhole and is greater than chute, the narrow portion of slide block door bolt is through ground cutter slide block and front door frame, and the wide portion of slide block door bolt can not pass chute thus pin the first lockhole or the second lockhole.
In another embodiment, the two ends of wire rope core have jut, and the wire rope core of state rope is by jut connection sliding block door bolt and rear door frame, and the wire rope core opening and closing rope connects door boit bracket and rear bolt by jut.
In another embodiment, resetting device is one or more in spring return mechanism, rubber resetting device, Pneumatic restoring mechanism.
Technical scheme of the present invention rope connects front door assembly and rear door assembly.Slide block door bolt connects Qianmen button and back door button, slide block breech lock surely cutter slide block in upper limit and lower limit.The stroke of Qianmen button band movable slider door bolt or the stroke of back door button band movable slider door bolt are not enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch, as long as ensure that Qianmen or back door is one of any does not close when putting in place, slide block door bolt is locking ground cutter slide block all the time.The stroke that the stroke of Qianmen button band movable slider door bolt adds back door button band movable slider door bolt is then enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch, make to only have when Qianmen and back door all close put in place time, slide block door bolt just removes the locking of cutter slide block over the ground.Can move up and down after ground cutter slide block unlocks, make ground knife switch axle through driving hole, so as spanner connect grounding knife switch axle complete cutter over the ground point cutter, close cutter operation.
In switch cubicle, have latch-up structure between ground cutter slide block and handcart, this latch-up structure ensures to only have ground cutter slide block to be transformed to lower limit by upper limit when handcart is in test position; Equally, if ground cutter slide block does not return upper limit, handcart is locked, and cannot transform to service position (namely cannot be connected with busbar, be in from electricity condition) by test position.In addition, front latch is connected with ground knife switch axle, and ground knife switch axle has cam, and when local knife switch axle rotates to and closes cutter position, this cam top makes front knocker depart from by front latch, removes the locking to Qianmen, opens Qianmen.
Adopt after technical solution of the present invention, when the Qianmen of switch cubicle cable vault or back door is one of any be in opening time, just mean that front latch and front knocker depart from; Also just the meaning knife switch that lands is in conjunction cutter position; Also meaning lands knife switch axle once through driving hole (namely cutter slide block was once in lower limit), and namely handcart is in test position, and now cable vault is without electricity, can enter safely.When the Qianmen of switch cubicle cable vault or back door are all in closed condition, just mean that front latch and front knocker fasten, namely just the meaning knife switch that lands is in a point cutter position, and handcart can change trial position or work be position safely; Because Qianmen and back door are closed all, whether Bu Luan cable vault is charged, all cannot enter cable vault, ensure that the safety of operating personnel.
The interlocking that technical scheme keying rope of the present invention realizes front door assembly and rear door assembly opens and closes, realize the interlocking of Qianmen and back door fastening with a bolt or latch slide block with state rope, front door assembly and rear door assembly couple together and realize the object of interlocking by realization simple and effective way dexterously.Technical scheme structure of the present invention is simple, and parts are few, are easy to processing, is convenient to assembling.
Accompanying drawing explanation
Fig. 1 is the front perspective view of the embodiment of the present invention;
Fig. 2 is the front perspective view of the front door assembly of the embodiment of the present invention;
Fig. 3 is the rear perspective view of the front door assembly of the embodiment of the present invention;
Fig. 4 is the right side parallax stereogram of the rear door assembly of the embodiment of the present invention;
Fig. 5 is the left side parallax stereogram of the rear door assembly of the embodiment of the present invention;
Fig. 6 is the rear door assembly door opening state stereogram of the embodiment of the present invention;
Fig. 7 is the front door assembly door opening state stereogram of the embodiment of the present invention.
Description of reference numerals:
Before front door assembly 100 rear door assembly 200 state rope 10 rope sling 11 wire rope core 12 jut 13 opens and closes rope 20 rope sling 21 wire rope core 22 jut 23 front door frame 110 front latch 120 chute 121 rope sling card 122 press section 123 buckling parts 124, knocker 130 is dodged Qianmen, hole 131 button 140 back-moving spring 141 rope sling card 142 slide block and is fastened back-moving spring 222 rear button 240 rope sling card 241 back-moving spring 242 ground, knocker 230 buckling parts 231 pushing surface 232 back door, 150 back-moving spring 153 ground, narrow portion 151 wide portion 152 cutter slide block 160 first lockhole 161 second lockhole 162 lug 163 driving hole 164 door boit brackets 170 rear door frame 210 rope sling card 211 rear bolt 220 bolt portion 221 knife switch axle 30 rivet 41 rivet 42 rivet 43 with a bolt or latch
Embodiment
The present invention will be further described by way of example below.
As shown in Figure 1.Switch cubicle interlocking device for cable vault door, is made up of front door assembly 100 and rear door assembly 200, has state rope 10 and open and close rope 20 between front door assembly 100 and rear door assembly 200; Front door assembly 100 comprise front door frame 110, front latch 120, front knocker 130, Qianmen button 140, slide block door bolt 150, cutter slide block 160, door boit bracket 170, rear door assembly 200 comprises rear door frame 210, rear bolt 220, rear knocker 230, back door button 240.
As shown in Figure 2, front door frame 110 and door boit bracket 170 are fixed on switch cubicle, front knocker 130 is fixed on Qianmen, Qianmen button 140 stretches out front door frame 110 and abuts on front knocker 130, slide block door bolt 150 passes ground cutter slide block 160 and ground cutter slide block 160 is locked in upper limit and lower limit, and ground cutter slide block 160 is installed on front door frame 110 by rivet 41 and also can moves up and down.As shown in Figure 3, front latch 120 is installed on door boit bracket 170 by rivet 42,43 and also can moves up and down, and front latch 120 has buckling parts 124 energy and front knocker 130 fastens.
As shown in Figure 4, Figure 5, rear door frame 210 is fixed on switch cubicle, rear knocker 230 is fixed on back door, rear bolt 220 is installed on rear door frame 210 and also can moves up and down, rear knocker 230 has buckling parts 231, the buckling parts 231 of rear bolt 220 energy and rear knocker 230 fastens, and back door button 240 stretches out rear door frame 210 and abuts on the pushing surface 232 of rear knocker 230.
The Qianmen button 140 of the present embodiment, slide block door bolt 150, back door button 240 and rear bolt 220 have spring return mechanism.As shown in Figure 5, back-moving spring 222 one end abuts on rear door frame 210, and the other end abuts on rear bolt 220, gives the trend that rear bolt 220 moves downward.As shown in Figure 5, back-moving spring 242 one end abuts on rear door frame 210, and the other end abuts on back door button 240, gives the trend of back door button 240 to left movement.As shown in Figure 3, back-moving spring 141 one end abuts on front door frame 110, and the other end abuts on Qianmen button 140, gives the trend that Qianmen button 140 moves right.As shown in Figure 3, back-moving spring 153 one end abuts on front door frame 110, and the other end abuts on slide block door bolt 150, gives the trend that slide block door bolt 150 moves right.
State rope 10 connection sliding block door bolt 150, Qianmen button 140 and back door button 240.As shown in Figure 2, Figure 4 shows, its right-hand member of rope sling 11 of state rope 10 abuts on the rope sling card 142 of Qianmen button 140, and its left end abuts on the rope sling card 241 of back door button 240; Its right-hand member of wire rope core 11 of state rope 10 has jut 13, by jut 13 connection sliding block door bolt 150; Its left end of wire rope core 11 of state rope 10 has jut, is connected on rear door frame 210 by this jut.When Qianmen button 140 is pressed, Qianmen button 140 drives rope sling 11 to left movement, tension rope 10, now, because state rope 10 tightens up, will pull slide block door bolt 150 to left movement.If be only that Qianmen button 140 is pressed completely, slide block door bolt 150 is by the left movement one section stroke identical with Qianmen button 140, but this section of stroke is not enough to the narrow portion 151 of slide block door bolt 150 to expose ground cutter slide block 160, ground cutter slide block 160 continues to be locked by the wide portion 152 of slide block door bolt 150.When back door button 240 is pressed, back door button 240 drives rope sling 11 to move right, tension rope 10, now, because state rope 10 tightens up, will pull slide block door bolt 150 to left movement.If be only that back door button 240 is pressed completely, slide block door bolt 150 is to the left movement one section stroke identical with back door button 240, but this section of stroke is not enough to the narrow portion 151 of slide block door bolt 150 to expose ground cutter slide block 160, ground cutter slide block 160 continues to be locked by the wide portion 152 of slide block door bolt 150.If Qianmen button 140 and back door button 240 are all pressed completely, slide block door bolt 150 equals to the total kilometres of left movement the stroke sum that Qianmen button 140 or back door button 240 act solely on slide block door bolt 150, the narrow portion 151 that these total kilometres can make slide block fasten 150 with a bolt or latch exposes ground cutter slide block 160, and slide block door bolt 150 removes the locking of cutter slide block 160 over the ground.
As shown in Figure 2, Figure 4 shows, its upper end of rope sling 21 opening and closing rope 20 abuts on the rope sling card 122 of front latch 120, and its lower end abutment is on the rope sling card 211 of rear door frame 210; Wire rope core 22 upper end opening and closing rope 20 has jut 23, and jut 23 abuts on door boit bracket 170; Wire rope core 22 lower end opening and closing rope 20 has jut, bolt 220 after this jut connects.When local knife switch is in and closes cutter position, the press section 123 of the cam pressing front latch 120 on ground knife switch axle 30, front latch 120 is moved downward, drives rope sling 21 when front latch 120 moves downward, tension opens and closes rope 20.After keying rope 20 tightens up, pull rear bolt 220 to move upward, the locking to rear knocker 230 removed by rear bolt 220.
As shown in Figure 6, Figure 7.Under normal circumstances, switch cubicle cable chamber door is closed, and front knocker 130 presses Qianmen button 140 and puts in place, and rear knocker 230 presses back door button 240 and puts in place, and the locking that ground cutter slide block 160 removes cutter slide block 160 is over the ground exposed in the wide portion 152 of slide block door bolt 150.Close ground knife switch before handcart transform to test position, remove the locking of cutter slide block 160 over the ground, the lug 163 that now can press ground cutter slide block 160 makes ground cutter slide block 160 move down, allow ground knife switch axle 30 pass completely through driving hole 164, side by side the second lockhole 162 of cutter slide block 160 aims at slide block door bolt 150.After inserting spanner 164, knife switch axle 30 makes ground knife switch be in conjunction cutter position rotationally, at this moment the press section 123 on the cam pressing front latch 120 on knife switch axle 30, front latch 120 moves down, and buckling parts 124 and front knocker 130 depart from fastening, and Qianmen can be opened.Front latch 120 drives the rope sling opening and closing rope 20 to move down simultaneously, namely tension opens and closes rope 20, so after this side of rear door assembly 200 keying rope 20 tightens up, its wire rope core pulls on rear bolt 220 and moves, rear bolt 220 and rear knocker 230 depart from fastening, and back door can be opened.
When the one of any of Qianmen or back door is opened, when i.e. Qianmen button 140 or back door button 240 one of any does not have pressing to put in place, as above-mentioned, ground cutter slide block 160 can not expose in the wide portion 152 of slide block door bolt 150, namely cutter slide block 160 is by slide block door bolt 150 locking, now can not cutter slide block 160 movably, namely can not move handcart, ensure that cable vault is in from electricity condition, cable vault can be entered safely.
All close when Qianmen and back door and put in place, namely front latch 120 moves and fasten with front knocker 130, ground knife switch transforms to a point cutter position by closing cutter position, Qianmen button 140 and back door button 240 all press and put in place simultaneously, as mentioned above, ground cutter slide block 160 is exposed in the wide portion 152 of slide block door bolt 150 completely, namely cutter slide block 160 is not by slide block door bolt 150 locking, now can do map function in cutter slide block 160 rival car position movably, because ground knife switch has been in a point cutter position, cable chamber door is also closed, and handcart can transform to service position by test position safely.
The switch cubicle interlocking device for cable vault door of the present embodiment, when can ensure that cable chamber door is in opening, handcart must be in test position, and ground knife switch must be in conjunction cutter position, namely cable vault must be in from electricity condition, and operating personnel can safety inspection cable vault.The switch cubicle interlocking device for cable vault door of the present embodiment, when can also ensure that ground knife switch is in point cutter position, cable chamber door must close, and operating personnel cannot enter cable vault; And handcart only when ground knife switch is in point cutter position, just can have test position to transform to service position.The switch cubicle interlocking device for cable vault door of the present embodiment meets in five anti-requirements simultaneously and " prevents from being with cable address (conjunction) earth connection (earthed switch) " and two requirements of " preventing mistakenly entering charged chamber ".
By the description of above-described embodiment, be enough to illustrate that switch cubicle interlocking device for cable vault door of the present invention utilizes rope by front door assembly 100 and the ingenious connection of rear door assembly 200, realize the interlock at Qianmen and back door, ensure that ground cutter slide block 160 is only just unlocked when front/rear door is all closed and put in place, its structure is simple, and parts are few, reliable operation, be easy to production and processing, be convenient to assembling.
Above-described embodiment is only for demonstration of the present invention is described; and unrestricted the present invention's spirit; the ornamental amendment that those of ordinary skill in the art makes under the guidance of above-described embodiment and replacement all should regard as and not depart from category of the present invention, and protection scope of the present invention is as the criterion with claims and is not restricted to the described embodiments.
Claims (6)
1. switch cubicle interlocking device for cable vault door, is made up of front door assembly and rear door assembly, it is characterized in that: have state rope between front door assembly and rear door assembly and open and close rope; Front door assembly comprise front door frame, front latch, front knocker, Qianmen button, slide block door bolt, cutter slide block, door boit bracket, rear door assembly comprises rear door frame, rear bolt, rear knocker, back door button; Front door frame and door boit bracket are fixed on switch cubicle, front knocker is fixed on Qianmen, Qianmen button stretches out front door frame and abuts to Qianmen and buckle, slide block door bolt is through ground cutter slide block and by ground cutter slider locks upper limit and lower limit, ground cutter slide block is installed on front door frame and also can moves up and down, front latch is installed on door boit bracket and also can moves up and down, and front latch and front knocker fasten; Rear door frame is fixed on switch cubicle, and rear knocker is fixed on back door, and rear bolt to be installed on rear door frame and can to move up and down, and rear bolt and rear knocker fasten, and back door button stretches out rear door frame and abuts to back door and buckle; Qianmen button, slide block door bolt, back door button and rear bolt have resetting device; State rope and open and close rope and form by rope sling and wire rope core, wire rope core is nested in rope sling, can reciprocating motion in rope sling; State rope connection sliding block door bolt, Qianmen button and back door button, open and close rope and connect front latch and rear bolt; Qianmen button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; Back door button connection sliding block is fastened with a bolt or latch and is with movable slider to fasten motion with a bolt or latch; The stroke of Qianmen button band movable slider door bolt or the stroke of back door button band movable slider door bolt are not enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch; The stroke that the stroke that Qianmen button band movable slider is fastened with a bolt or latch adds back door button band movable slider door bolt is then enough to make slide block fasten the locking removing cutter slide block over the ground with a bolt or latch.
2. switch cubicle interlocking device for cable vault door according to claim 1, is characterized in that: its right-hand member of the rope sling of state rope abuts to Qianmen button, and its left end abuts to back door button; Its right-hand member connection sliding block of the wire rope core of state rope is fastened with a bolt or latch, door frame after its left end connects.
3. switch cubicle interlocking device for cable vault door according to claim 1, is characterized in that: its upper end of rope sling opening and closing rope abuts to front latch, and its lower end abutment is to rear door frame; Its upper end of wire rope core opening and closing rope connects door boit bracket, bolt after its lower end connects.
4. switch cubicle interlocking device for cable vault door according to claim 1, is characterized in that: ground cutter slide block has the first lockhole and the second lockhole, the first lockhole locking upper limit, the second lockhole locking lower limit; Between first lockhole and the second lockhole, there is chute, the width of chute is less than the width of the first lockhole and the second lockhole, slide block door bolt has narrow portion and wide portion, the width of slide block door bolt narrow portion is less than chute, the width that slide block fastens wide portion with a bolt or latch is less than the first lockhole and the second lockhole and is greater than chute, the narrow portion of slide block door bolt is through ground cutter slide block and front door frame, and the wide portion of slide block door bolt can not pass chute thus pin the first lockhole or the second lockhole.
5. switch cubicle interlocking device for cable vault door according to claim 1, it is characterized in that: the two ends of wire rope core have jut, the wire rope core of state rope is by jut connection sliding block door bolt and rear door frame, and the wire rope core opening and closing rope connects door boit bracket and rear bolt by jut.
6. switch cubicle interlocking device for cable vault door according to claim 1, is characterized in that: resetting device is one or more in spring return mechanism, rubber resetting device, Pneumatic restoring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007822.2A CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007822.2A CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103701058A CN103701058A (en) | 2014-04-02 |
| CN103701058B true CN103701058B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007822.2A Active CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103701058B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509835B (en) * | 2020-09-25 | 2023-03-31 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
| CN113839332B (en) * | 2021-07-12 | 2024-05-10 | 广州白云电器设备股份有限公司 | Switch cabinet with bidirectional interlocking handcart and rear door |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042625U (en) * | 1988-10-12 | 1989-08-09 | 湖南省常德市第一开关厂 | Fault-operation protective latching device for flexible transmitting machinery |
| CN201360108Y (en) * | 2009-02-12 | 2009-12-09 | 福州天一同益电气有限公司 | Switch cabinet interlocking mechanism |
| CN201656314U (en) * | 2009-12-14 | 2010-11-24 | 厦门明翰电气有限公司 | Manual-switching-prevention mechanical locking device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174503A (en) * | 1987-05-15 | 1988-07-19 | 株式会社東芝 | Unit locking apparatus of control center |
| JP2806167B2 (en) * | 1992-09-01 | 1998-09-30 | 三菱電機株式会社 | Interlock device for circuit breaker storage box door |
| JP3287221B2 (en) * | 1996-04-18 | 2002-06-04 | 日新電機株式会社 | Locking device for operating device for switchgear |
| CN201018212Y (en) * | 2007-02-26 | 2008-02-06 | 镇江默勒电器有限公司 | Mechanical interlocking mechanism of low-voltage distribution cabinet |
-
2014
- 2014-01-08 CN CN201410007822.2A patent/CN103701058B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042625U (en) * | 1988-10-12 | 1989-08-09 | 湖南省常德市第一开关厂 | Fault-operation protective latching device for flexible transmitting machinery |
| CN201360108Y (en) * | 2009-02-12 | 2009-12-09 | 福州天一同益电气有限公司 | Switch cabinet interlocking mechanism |
| CN201656314U (en) * | 2009-12-14 | 2010-11-24 | 厦门明翰电气有限公司 | Manual-switching-prevention mechanical locking device |
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| Publication number | Publication date |
|---|---|
| CN103701058A (en) | 2014-04-02 |
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