CN103094859A - Connecting mechanism for drawer unit of low voltage switchgear cabinet - Google Patents
Connecting mechanism for drawer unit of low voltage switchgear cabinet Download PDFInfo
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- CN103094859A CN103094859A CN2013100032296A CN201310003229A CN103094859A CN 103094859 A CN103094859 A CN 103094859A CN 2013100032296 A CN2013100032296 A CN 2013100032296A CN 201310003229 A CN201310003229 A CN 201310003229A CN 103094859 A CN103094859 A CN 103094859A
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- drawer
- rotating disk
- locking groove
- drawer unit
- latch
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Abstract
The invention relates to a low voltage switchgear cabinet. The connecting mechanism for a drawer unit of the low voltage switchgear cabinet comprises a cabinet body, the drawer unit, a locating pin drive mechanism and a stopper mechanism, wherein the cabinet body is arranged in a drawer chamber which accommodates the drawer unit, a locating groove and a locating pin which are matched with each other are arranged between the drawer unit and the cabinet body, and a communicating state locating portion and a detecting state locating portion are arranged on an inclined section. The locating pin drive mechanism comprises a turntable, and a locating pin is connected with the turntable. The stopper mechanism comprises a stopper pin, a locking spring, a communicating portion stopper groove, a detecting portion stopper groove and an exit portion stopper groove, wherein the communicating portion stopper groove, the detecting portion stopper groove and the exit portion stopper groove are formed in the turntable and circumferentially distributed along the turntable. The connecting mechanism for the drawer unit of the low voltage switchgear cabinet can be fixed between the drawer unit and the cabinet body when the electric is in a communicating state and a power-off state, and the problem of inconvenient testing of the low voltage switchgear cabinet is solved.
Description
Technical field
The present invention relates to low voltage drawing-out switching carbinet, relate in particular to a kind of drawer of low-voltage switch cabinet unit connection structure.
Background technology
Low voltage drawing-out switching carbinet has disjunction, making capacity is high, dynamic thermal stability good, electric scheme flexibly, practical, the novel structure of combined and instant, series, degree of protection high, be subject to users' welcome, the motive power distribution center and the motor control center that are widely used in power plant, electric substation, industrial enterprise and skyscraper use as the low-voltage complete power distribution equipment of sending out, distribution, motor centralized control, reactive power compensation are used in electric power system.China Patent No. be " ZL2011204730414 ", Granted publication day are July 25 in 2012 day, in being called the patent document of " low voltage drawing-out switching carbinet ", a kind of low voltage drawing-out switching carbinet is disclosed.Total structure of low voltage drawing-out switching carbinet all with in this patent document, comprises cabinet and drawer unit, and cabinet is provided with the drawer chamber, and it is indoor that drawer unit is located in drawer correspondingly.
Most low voltage drawing-out switching carbinets are all as the connected mode in this patent document, drawer unit be directly intert at drawer indoor, therefore drawer unit easily skids off and causes electrical contact bad from the drawer chamber: can not remain on the drawer chamber problem that electrically contacts the position in order to solve drawer unit.Existing method is for lock pin and the pin-and-hole cooperatively interact is set between drawer unit and cabinet, when drawer unit is electrically connected with cabinet, lock pin is inserted in lockhole and stops and both produces relative sliding and electricity is thrown off; When extracting drawer unit out, lock pin is extracted in lockhole, thereby can be moved freely drawer unit.
existing drawer unit has the following disadvantages with the connection between cabinet: drawer unit is with only just being locked together when the electric on-state between cabinet, drawer unit can not be locked together with cabinet when electricity is thrown off, and in the drawer unit debug process, drawer unit is disconnected with the cabinet electricity, if do not extract drawer unit fully from the drawer chamber this moment, easily produce at test process and touch drawer unit and make drawer unit enter into the drawer chamber fully and electrically contact together with cabinet, damage drawer unit and tester equipment in test, drawer unit is extracted to test fully can cause test jobs very inconvenient.
Summary of the invention
The invention provides a kind of drawer unit that can make and keep relatively-stationary drawer of low-voltage switch cabinet unit connection structure with keeping relatively-stationary between cabinet when the electric conducting state again can be in electric off-state the time, what solved that drawer unit causes with being fixed together when the electric off-state between cabinet can not be inserted in drawer unit the indoor problem of testing the test inconvenience that causes of drawer.
above technical problem solves by following technical proposal: a kind of drawer of low-voltage switch cabinet unit connection structure, comprise cabinet, drawer unit, positioning pin drive mechanism and stop mechanism, it is indoor that described cabinet is provided with the drawer that holds drawer unit, be provided with the location notch and the alignment pin that cooperatively interact between described drawer unit and cabinet, described location notch comprises straight section and the oblique section that sets gradually, described straight section extends along the drawer unit direction of insertion, described oblique section is provided with conducting state location division and detected state location division, described positioning pin drive mechanism comprises rotating disk, described alignment pin links together with described rotating disk, described stop mechanism comprises latch, the locking spring that latch is moved towards rotating disk, and the conducting position locking groove that is arranged at that the same latch on described rotating disk matches, detecting position locking groove and withdraw from a locking groove, conducting position locking groove, detecting position locking groove and withdraw from a locking groove three along the circumferential distribution of rotating disk.Rotating disk can freely rotate when latch is thrown off with rotating disk, can freely slide in location notch in the time of the servo-actuated dial rotation of alignment pin; In the time of in latch is stuck in conducting position locking groove, rotating disk can not rotate, drawer unit conducted (be on drawer unit electric elements be electrically connected with the electric elements on cabinet), alignment pin with cabinet and was inserted in conducting state location division in location notch this moment, the conducting state location division stops alignment pin to move along the depth direction of drawer chamber, makes drawer unit can not be equal to the drawer chamber and extracts; In the time of in latch is stuck in the test bit locking groove, rotating disk can not rotate, this moment drawer unit with cabinet electricity disconnect, alignment pin is inserted in test mode location division in location notch, the test mode location division stops alignment pin to move along the depth direction of drawer chamber, makes drawer unit can not be equal to the drawer chamber and extracts; When latch is stuck in when withdrawing from a locking groove, rotating disk can not rotate, this moment, drawer unit was inserted in straight section with the disconnection of cabinet electricity, alignment pin, because straight section extends along the direction of insertion of drawer unit, therefore when extracting drawer unit, straight section can not limit alignment pin and moves within it, makes drawer unit to extract fully from the drawer chamber.
As preferably, described location notch is arranged in the wall section of described drawer chamber, the outer end of described straight section extends to described drawer outdoor end, the described oblique section end away from straight section tilts towards the indoor end of drawer, described conducting state position point is on the oblique section end away from described straight section, described detected state position point is on the end that the same described straight section of described oblique section is connected, and described positioning pin drive mechanism is arranged at described drawer unit.After drawer unit can being extracted, positioning pin drive mechanism, lockable mechanism and alignment pin are installed on drawer unit, it is convenient that assembly and disassembly is safeguarded when of the present invention.
As preferably, described rotating disk is provided with the rotating disk driving handle.Live the rotating disk driving handle by gripping and remove to rotate rotating disk, convenient and strength-saving when rotating rotating disk.
As preferably, described rotating disk driving handle is in the same plane with rotating disk.Structural compactness is good.
The present invention comprises that also an end is with the hinged latch opening handle of described drawer unit, described latch is hinged on described latch opening handle middle part away from an end of described rotating disk, described drawer unit is provided with gathering sill, and described latch is provided with the slide block that slips in described gathering sill.When being positioned at narrow space, also can open latch easily by latch.Make the present invention can adapt to installing and using of tight space.
As preferably, described locking spring one end with described latch link together, the other end links together with described drawer unit.The locking spring directly acts on latch, is not easy to produce stuck phenomenon, can guarantee more reliably that lock pin is inserted in corresponding lock groove, good reliability.
The present invention also comprises observation window, sliding seat and connecting rod, and described sliding seat links together with described rotating disk by connecting rod, and described sliding seat is provided with conducting state sign, detected state sign and the opening sign that can align with described observation window respectively; Described observation window, sliding seat, stop mechanism and positioning pin drive mechanism are arranged on drawer unit and the cabinet same one in both.When the conducting state sign was alignd with observation window, drawer unit conducted with cabinet and latch is inserted in the conducting state locking groove.When the test mode sign was alignd with observation window, drawer unit disconnects with the cabinet electricity and latch is inserted in the test mode locking groove.When the opening sign was alignd with observation window, drawer unit disconnects with the cabinet electricity and latch is inserted in the opening locking groove.Can intuitive and convenient judging rapidly drawer unit is in which kind of state and rotating disk and whether is stopped lock and stops, the convenience when having improved operation.
As preferably, described latch along continuous straight runs extends.Latch can not be subject to the impact of gravity and produce misoperation.Good reliability.
As preferably, described conducting position locking groove, detecting position locking groove and withdraw from a locking groove three and be positioned on the side face of described rotating disk.Structural compactness is good.
As preferably, described conducting position locking groove, detecting position locking groove and to withdraw from a locking groove be all the hole.When latch is inserted in locking groove, be not easy to produce the disengagement phenomenon of non-latch moving direction.Good reliability.
The present invention has following advantage, has realized that with compact structure drawer unit keeps relatively fixing with keeping relatively fixing between cabinet when the electric conducting state again can be in electric off-state the time; By the locking spring is set, lock pin is inserted in lock groove automatically, can overcome generation and forget locking and carry out the existing potential safety hazard of test job and avoid drawer unit phenomenon generation of outage with abnormal disengagement of cabinet, security reliability is good.
Description of drawings
Fig. 1 is the perspective view of the present invention when observing from a visual angle.
Fig. 2 is the local enlarged diagram at the A place in Fig. 1.
Fig. 3 is the perspective view of the present invention when observing from another visual angle.
Fig. 4 is the local enlarged diagram at the B place in Fig. 3.
Fig. 5 is the structural representation of the embodiment of the present invention two.
in figure: cabinet 1, drawer chamber 11, slide rail 12, drawer unit 2, the second electrical apparatus interface 21, observation window 22, slide opening 23, slide bar 24, connecting rod 25, sliding seat 26, the first gathering sill 27, the second gathering sill 28, location notch 3, straight section 31, the outer end 311 of straight section, oblique section 32, an end 321 away from straight section of oblique section, conducting state location division 322, the end 323 that the same straight section of oblique section is connected, detected state location division 324, alignment pin 4, positioning pin drive mechanism 5, rotating disk 51, rotating disk driving handle 52, rotating shaft 53, stop mechanism 6, conducting position locking groove 61, detecting position locking groove 62, withdraw from a locking groove 63, latch 64, the first slide block 641, the second slide block 642, locking bullet 65, latch opening handle 66, hinge 661.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Referring to Fig. 1, a kind of drawer of low-voltage switch cabinet unit connection structure comprises cabinet 1 and drawer unit 2.
Cabinet 1 is provided with drawer chamber 11.The inner of drawer chamber 11 i.e. left end in this figure is provided with the first electric interfaces, and the first electric interfaces is existing known interface, and the first electric interfaces be cannot see in the drawings because of the inside that is positioned at cabinet 1.The wall section of drawer chamber 11 is provided with location notch 3.Location notch 3 comprises the straight section 31 that sets gradually to the inner from the outer end of drawer chamber and oblique section 32.Straight section 31 along the drawer unit direction of insertion namely the D in figure to extension.The outer end 311 of straight section extends to the outer end of drawer chamber 11.Tiltedly section away from an end 321 of straight section towards the inner of drawer chamber namely in this figure corresponding left end tilt.Tiltedly the end 321 away from straight section of section is provided with conducting state location division 322.Tiltedly the end 323 that is connected of the same straight section of section is provided with detected state location division 324.
The diapire of drawer unit 2 is provided with alignment pin 4, positioning pin drive mechanism 5 and stop mechanism 6.The inner of drawer unit 2 is provided with the second electrical apparatus interface 21.The known interface of the second electric interfaces 2 for being complementary with the first electric interfaces.
Referring to Fig. 2, positioning pin drive mechanism 5 comprises rotating disk 51 and rotating disk driving handle 52.Alignment pin 4 is connected on the lower surface of rotating disk 51.Rotating disk 51 is rotatably connected on the outer surface of drawer unit 2 diapires by rotating shaft 53.Rotating disk 51 is structure as a whole and is positioned on same level with rotating disk driving handle 52.
The front side of drawer unit 2 is provided with observation window 22.The diapire of drawer unit 2 is provided with the slide opening 23 that runs through diapire.Be equipped with slide bar 24 in slide opening 23.The lower end of slide bar 24 is stretched out after slide opening hinged with an end of connecting rod 25.The other end of connecting rod 25 is hinged with rotating disk 51.The upper end of slide bar 24 stretches out that slide opening 23 is rear to link together with sliding seat 26.
Referring to Fig. 3, the sidewall of the drawer chamber 11 on cabinet 1 is provided with a pair of slide rail 12.The sidewall of drawer unit 2 is provided with the pulley that slide rail together matches.Pulley does not draw in the drawings.
Referring to Fig. 4, the diapire of drawer unit 2 is provided with the first gathering sill 27 and the second gathering sill 28.The bearing of trend of the first gathering sill 27 and the second gathering sill 28 is identical and run through the diapire of drawer unit 2.The second slide block 642 is located in the second gathering sill 28.The inner of the second slide block 642 is provided with the nut that prevents that the second slide block 642 from deviating from the second gathering sill 28.The first slide block 641 is located in the first gathering sill 27.Latch opening handle 66 is positioned at the inboard of drawer unit 2 diapires.The inner of latch opening handle 66 is hinged with drawer unit 2 by hinge 661.Sliding seat 26 is positioned at and passes through the inboard of examining hole 22.Sliding seat 26 is provided with conducting state sign, detected state sign and opening sign towards the side of inspection hole 22; Conducting state is designated word " sealed ".Detected state is designated word " test ".Opening is designated word " unlatching ".That only the detected state sign is alignd with observation window during the position in figure.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, method of operation of the present invention and course of action are as follows: to the outer end of pulling latch opening handle 66, latch opening handle 66 orders about latch 64 by the first slide block 641 and maintains disengaged condition, makes rotating disk 51 freely to rotate with rotating disk 51 according to C in Fig. 2; Electrically contact together with the first electric interfaces in drawer chamber 11 to drawer unit 2 being inserted in drawer chamber 11 the second electric interfaces 21 according to the D in Fig. 1 after making alignment pin 4 with straight section 31 alignment of location notch 3, in the process that drawer unit 2 inserts, alignment pin 4 slides in oblique section 32 along straight section 31; Along continuous straight runs movable roundabout driving handle 52, rotating disk driving handle 52 drives rotating disk 51 and rotates take rotating shaft 53 as axle, rotating disk 51 drives slide bar 24 in the interior slip of slide opening 23 by connecting rod 25, slide bar 24 drives sliding seat 26 and slides, stop movable roundabout driving handle 52 when sliding into conducting state sign on sliding seat 26 with inspection hole 22 alignment, this moment, latch 64 was with 61 alignment of conducting position locking groove, and alignment pin 4 is positioned at conducting state location division 322; Unclamp C to latch opening handle 66 to the effect of pressing, locking spring 65 drives latch 64 and moves towards rotating disk 51, the end of latch 64 is inserted in conducting position locking groove 61, makes rotating disk 51 to rotate, and conducting state location division 322 coordinates alignment pins 4, make drawer unit 2 can not extract in drawer chamber 11 when drawer unit 2 is in electric conducting state with cabinet 1.
To the outer end of pulling latch opening handle 66, latch opening handle 66 orders about latch 64 by the first slide block 641 and maintains disengaged condition, makes rotating disk 51 freely to rotate with rotating disk 51 according to C in Fig. 2; The detected state sign of along continuous straight runs movable roundabout driving handle 52 to the sliding seat 26 stops movable roundabout driving handle 52 during with inspection hole 22 alignment, this moment latch 64 with 62 alignment of detecting position locking groove, alignment pin 4 is positioned at detected state location division 324; Unclamp C to latch opening handle 66 to the effect of pressing, locking spring 65 drives latch 64 and moves towards rotating disk 51, the end of latch 64 is inserted in detecting position locking groove 62, makes rotating disk 51 to rotate, and detected state location division 324 coordinates alignment pins 4, make drawer unit 2 be inserted in drawer chamber 11 can remain on drawer unit 2 when interior and be in the position of electric off-state with cabinet 1.Can carry out safely and reliably test job this moment, do not worry that drawer unit can be deviate from being inserted into to conduct with cabinet 1 and be in the same place or deviate from.
To the outer end of pulling latch opening handle 66, latch opening handle 66 orders about latch 64 by the first slide block 641 and maintains disengaged condition, makes rotating disk 51 freely to rotate with rotating disk 51 according to C in Fig. 2; Along continuous straight runs movable roundabout driving handle 52 stops movable roundabout driving handle 52 when the opening sign on sliding seat 26 is alignd with inspection hole 22, this moment, the latch 64 same locking groove 63 that withdraw from alignd, and alignment pin 4 is arranged in the straight section 31 of location notch 3; Unclamp C to latch opening handle 66 to the effect of pressing, locking spring 65 drives latch 64 and moves towards rotating disk 51, the end of latch 64 is inserted into to be withdrawed from a locking groove 63, makes rotating disk 51 to rotate, and makes drawer unit 2 be merely able to extract and can not be inserted into cabinet 1 in drawer chamber 11 conduct.This design can prevent that misoperation from reinserting drawer unit with cabinet 1 and conducts or stuckly cause again carrying out other unnecessary breakdown action at other state.Fail safe is good, can not cause unnecessary operation action to produce.
Embodiment two, referring to Fig. 5, with the difference of embodiment one are: conducting position locking groove 61, detecting position locking groove 62 and to withdraw from a locking groove 63 be all the hole that is arranged on rotating disk 51 side faces.Conducting state on sliding seat 26 is designated red color lump.Detected state is designated yellow color lump.Opening is designated green color lump.
Obviously, location notch is arranged on drawer unit, and observation window, sliding seat and positioning pin drive mechanism and lockable mechanism are arranged on and also are fine on cabinet, this moment is in order to extract drawer unit fully out, straight section be positioned at drawer unit the inner and tiltedly the section outer end that is positioned at drawer unit get final product.
Claims (10)
1. drawer of low-voltage switch cabinet unit connection structure, comprise cabinet and drawer unit, it is indoor that described cabinet is provided with the drawer that holds drawer unit, it is characterized in that, also comprise positioning pin drive mechanism and stop mechanism, be provided with the location notch and the alignment pin that cooperatively interact between described drawer unit and cabinet, described location notch comprises straight section and the oblique section that sets gradually, described straight section extends along the drawer unit direction of insertion, described oblique section is provided with conducting state location division and detected state location division, described positioning pin drive mechanism comprises rotating disk, described alignment pin links together with described rotating disk, described stop mechanism comprises latch, the locking spring that latch is moved towards rotating disk, and the conducting position locking groove that is arranged at that the same latch on described rotating disk matches, detecting position locking groove and withdraw from a locking groove, conducting position locking groove, detecting position locking groove and withdraw from a locking groove three along the circumferential distribution of rotating disk.
2. drawer of low-voltage switch cabinet unit connection structure according to claim 1, it is characterized in that, described location notch is arranged in the wall section of described drawer chamber, the outer end of described straight section extends to described drawer outdoor end, the described oblique section end away from straight section tilts towards the indoor end of drawer, described conducting state position point is on the oblique section end away from described straight section, described detected state position point is on the end that the same described straight section of described oblique section is connected, and described positioning pin drive mechanism is arranged at described drawer unit.
3. drawer of low-voltage switch cabinet unit connection structure according to claim 2, is characterized in that, described rotating disk is provided with the rotating disk driving handle.
4. drawer of low-voltage switch cabinet unit connection structure according to claim 3, is characterized in that, described rotating disk driving handle is in the same plane with rotating disk.
5. according to claim 2 or 3 or 4 described drawer of low-voltage switch cabinet unit connection structures, it is characterized in that, comprise that also an end is with the hinged latch opening handle of described drawer unit, described latch is hinged on described latch opening handle middle part away from an end of described rotating disk, described drawer unit is provided with gathering sill, and described latch is provided with the slide block that slips in described gathering sill.
6. drawer of low-voltage switch cabinet unit connection structure according to claim 5, is characterized in that, described locking spring one end with described latch link together, the other end links together with described drawer unit.
7. according to claim 1 and 2 or 3 or 4 described drawer of low-voltage switch cabinet unit connection structures, it is characterized in that, also comprise observation window, sliding seat and connecting rod, described sliding seat links together with described rotating disk by connecting rod, and described sliding seat is provided with conducting state sign, detected state sign and the opening sign that can align with described observation window respectively; Described observation window, sliding seat, stop mechanism and positioning pin drive mechanism are arranged on drawer unit and the cabinet same one in both.
8. according to claim 1 and 2 or 3 or 4 described drawer of low-voltage switch cabinet unit connection structures, is characterized in that, described latch along continuous straight runs extends.
9. drawer of low-voltage switch cabinet unit connection structure according to claim 8, is characterized in that, described conducting position locking groove, detecting position locking groove and withdraw from a locking groove three and be positioned on the side face of described rotating disk.
10. drawer of low-voltage switch cabinet unit connection structure according to claim 9, is characterized in that, described conducting position locking groove, detecting position locking groove and to withdraw from a locking groove be all the hole.
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CN201310003229.6A CN103094859B (en) | 2013-01-06 | 2013-01-06 | Drawer of low-voltage switch cabinet unit connection structure |
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CN201310003229.6A CN103094859B (en) | 2013-01-06 | 2013-01-06 | Drawer of low-voltage switch cabinet unit connection structure |
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CN103094859B CN103094859B (en) | 2016-01-20 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9444234B2 (en) | 2014-05-28 | 2016-09-13 | General Electric Company | Switchgear including a withdrawable switchgear unit having a blocking mechanism |
CN114204470A (en) * | 2021-12-10 | 2022-03-18 | 浙江浙恒电气股份有限公司 | Intelligent low-voltage draw-out type switch cabinet |
Citations (4)
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JPS63103608A (en) * | 1986-10-20 | 1988-05-09 | 株式会社戸上電機製作所 | Apparatus for mating/unmating unit of switchboard |
CN2609247Y (en) * | 2003-03-17 | 2004-03-31 | 潘敏 | Propelling device for low voltage drawer type switch cubicle |
CN202094522U (en) * | 2011-06-08 | 2011-12-28 | 杭州欣美成套电器制造有限公司 | Drawer structure used for low voltage draw-out type switch cabinet |
CN203071469U (en) * | 2013-01-06 | 2013-07-17 | 杭州万禾电力科技有限公司 | A low-voltage switch cabinet drawer unit connecting structure |
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2013
- 2013-01-06 CN CN201310003229.6A patent/CN103094859B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63103608A (en) * | 1986-10-20 | 1988-05-09 | 株式会社戸上電機製作所 | Apparatus for mating/unmating unit of switchboard |
CN2609247Y (en) * | 2003-03-17 | 2004-03-31 | 潘敏 | Propelling device for low voltage drawer type switch cubicle |
CN202094522U (en) * | 2011-06-08 | 2011-12-28 | 杭州欣美成套电器制造有限公司 | Drawer structure used for low voltage draw-out type switch cabinet |
CN203071469U (en) * | 2013-01-06 | 2013-07-17 | 杭州万禾电力科技有限公司 | A low-voltage switch cabinet drawer unit connecting structure |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9444234B2 (en) | 2014-05-28 | 2016-09-13 | General Electric Company | Switchgear including a withdrawable switchgear unit having a blocking mechanism |
CN114204470A (en) * | 2021-12-10 | 2022-03-18 | 浙江浙恒电气股份有限公司 | Intelligent low-voltage draw-out type switch cabinet |
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