CN110098577A - A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate - Google Patents
A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate Download PDFInfo
- Publication number
- CN110098577A CN110098577A CN201910509423.9A CN201910509423A CN110098577A CN 110098577 A CN110098577 A CN 110098577A CN 201910509423 A CN201910509423 A CN 201910509423A CN 110098577 A CN110098577 A CN 110098577A
- Authority
- CN
- China
- Prior art keywords
- plate
- door
- retaining spring
- limit mechanism
- gag lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The present invention discloses a kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate, including gag lever post, rotary support, fixed baffle and retaining spring pedestal, gag lever post includes the straight-arm end of integrally connected and end of cranking arm, straight-arm end is connected by rotary shaft with rotary support, and rotary support is fixedly connected with cable vault's door-plate；Retaining spring pedestal is installed on the threshold crossbeam of switchgear by fixed baffle, is equipped with retaining spring in retaining spring pedestal, is provided with crank arm end and the retaining spring clamping engagement of multiple grooves.This position-limit mechanism is fastened by bolts in high-tension switch gear, can realize quantitative limit to cable chamber door switching plate angle；Cable vault's door-plate can be limited and do freely unordered rotation after unlatching, cable vault's door-plate can be locked in target angular position, prevent it from crushing operation maintenance personal under enabling inertia force, reduce the rigid impact to cable vault's door-plate surrounding metal structures part and abrasion.
Description
Technical field
The present invention relates to metal armouring switchgear assembly technical fields, open more particularly to a kind of metal armored movable
Close the position-limit mechanism of equipment door-plate.
Background technique
Currently, 12kV metal armored withdrawal-type switching device, outer dimension is 800mm wide x2300mm high x1450mm
Deep, door-plate is in the shape of " pin " or the arrangement of " mesh " font, door-plate are connected by hinge and bolt with column, switch equipment cable vault
Door-plate is having a size of 770mm wide x790 high (metal plate is with a thickness of 2mm), quality about 14kg.Since door-plate closed area and quality are big, open
Biggish enabling power is needed when door, under the effect of self inertia power, rotation to maximum angle of release Shi Yinwu device constraint causes door-plate
Collide with side door fixed plate, at the same open the door operation when, under door opening state cable vault's door-plate because no device constrain its rotation from
By spending, cable vault's door-plate issues life in crosswind force or other external forces and rotates freely, and influences to make under the action of inertia force
Industry person works even crush operating personnel.If with side plate fixed plate rigidity can occur for the excessive cable vault's door-plate of door closing force at closing time
Collision generates noise and reduces entire cabinet body service life.
Summary of the invention
The object of the present invention is to provide a kind of position-limit mechanisms of metal armored withdrawal-type switching device door-plate, solve door-plate
Inertia force effect under the problem of rotating freely, crush operation maintenance personal, reduce the service life, improve the use of product
Performance, safety index.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of metal armored movable switch
The position-limit mechanism of equipment door-plate, including gag lever post, rotary support, fixed baffle and retaining spring pedestal, the gag lever post include
The straight-arm end of integrally connected and end of cranking arm, the straight-arm end are connected by rotary shaft with the rotary support, the rotary support
It is fixedly connected with cable vault's door-plate；The retaining spring pedestal is installed on the threshold crossbeam of switchgear by the fixed baffle
On, retaining spring is installed in the retaining spring pedestal, is provided with end and the retaining spring of cranking arm of multiple grooves
It is engaged by clamping.
Further, one end of the rotary support and the gag lever post is clearance fit.
Further, there are four groove of shifting gears, four grooves respectively correspond cable vault for the end setting of cranking arm of the gag lever post
30 °, 60 °, 90 ° and 120 ° of door-plate opening angle.
Further, the position that the retaining spring end is contacted with gag lever post is fixed with ball jacket, the ball jacket
Interior ball is used to fix the position of the shift groove.
Further, the shift groove is circular arc fairing transition type groove.
Further, cranking arm for the gag lever post holds end to be wholely set limit plate, and the section of the limit plate is greater than
The intermediate cross-section of the retaining spring.
The present invention achieves following technical effect compared with the existing technology:
1. a position-limit mechanism is fastened by bolts in high-tension switch gear, cable chamber door switching plate angle can be realized quantitative
Limit, limit angle are as follows: 30 °, 60 °, 90 °, 120 °.
2. position-limit mechanism can limit cable vault's door-plate and do freely unordered rotation after unlatching, cable vault's door-plate can be locked
It due to target angular position, prevents it from crushing operation maintenance personal under enabling inertia force, reduces to golden around cable vault's door-plate
Belong to rigid impact and the abrasion of structural member.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of position-limit mechanism；
Fig. 2 is the cable vault's door-plate closed state figure for assembling the position-limit mechanism；
Fig. 3 is the high-tension switch gear cable vault door-plate unlatching axonometric drawing for being equipped with the position-limit mechanism；
Fig. 4 is the position-limit mechanism working trajectory figure；
Wherein, 1 bolt；2 rotary shafts；3 rotary supports；4；Bolt；5 nuts；6 fixed baffles；7 retaining spring pedestals；8 limits
Position bar；10 retaining springs；11 ball jackets；12 balls；13 threshold crossbeams；15 cable vault's door-plates；18 columns；20 switchgear frames
Frame；21 side door fixed plates；22 hinges.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of position-limit mechanisms of metal armored withdrawal-type switching device door-plate, solve door-plate
Inertia force effect under the problem of rotating freely, crush operation maintenance personal, reduce the service life, improve the use of product
Performance, safety index.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Please refer to Fig. 1-4, wherein Fig. 1 is the structural schematic diagram of position-limit mechanism；Fig. 2 is the cable for assembling the position-limit mechanism
Room door-plate closed state figure；Fig. 3 is the high-tension switch gear cable vault door-plate unlatching axonometric drawing for being equipped with the position-limit mechanism；Fig. 4
For the position-limit mechanism working trajectory figure.
As shown in Figs 1-4, the present invention provides a kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate.
The present invention relates to the metal armouring switchgear assembly devices of system 3.6-12kV three-phase alternating current 50Hz.It is mainly used for
Power plant, medium and small generator power generation, industrial and mining enterprises' cause distribution and electric system secondary substation by electricity, power transmission and
The implementations control such as large high-voltage motor starting protection, monitoring are used, and are suitable for the size-constrained occasion of in-site installation.
The position-limit mechanism of metal armored withdrawal-type switching device door-plate, including switchgear frame 20, cable vault's door-plate 15,
Position-limit mechanism three digest journals.
Switchgear frame 20 includes side plate fixed plate 21, column 18, threshold crossbeam 13, hinge 22；Position-limit mechanism includes
Rotary support 3, rotary shaft 2, gag lever post 8, retaining spring pedestal 7, fixed baffle 6, retaining spring 10, ball 12, ball jacket
11.Cable vault's door-plate 15 is fixed on side plate fixed plate 21 by hinge 22, and cable chamber door belongs to revolving door；Position-limit mechanism rotation branch
Seat 3 is anchored on cable vault's door-plate 15 by bolt 1, and retaining spring pedestal 7 is anchored on threshold crossbeam 13 by bolt 4 and nut 5.
Rotary support is connected by rotary shaft 2 with gag lever post 8 and is clearance fit, and gag lever post 8 does reciprocal fortune in retaining spring pedestal 7
It is rotatable that gag lever post 8, which is connected with rotary support by rotary shaft 2, while dynamic.
Position-limit mechanism can realize the limit at 15 switch rotary angle of cable vault's door-plate.Gag lever post 8, which is cranked arm, holds design to have shift recessed
Slot, cable vault's door-plate 15 drive gag lever post 8 to move reciprocatingly in retaining spring pedestal 7, work as ball when being turned on or off
12 roll to first 30 ° of groove door-plate unlatching；60 ° are opened when ball 12 is rolled to second groove door-plate；When ball 12 rolls
It moves to third groove door-plate and opens 90 °；120 ° are opened when ball 12 is rolled to the 4th groove door-plate.
It is circular arc fairing transition that gag lever post 8, which cranks arm and holds shift groove, changes the unlatching of cable vault's door-plate if you need to switch gear
When angle, operation maintenance personal need to only apply external force in cable vault's door-plate 15, and gag lever post 8 is in retaining spring under the effect of external force
It moves reciprocatingly in 7 via hole of pedestal, when the raised arc surface of gag lever post 8 applies pressure to ball 12, retaining spring 10 is compressed
Ball 12 switches to target recess.
Position-limit mechanism realizes cable vault by the reciprocating movement of gag lever post 8 and two kinematic pairs of circular motion of rotary support 3
The limit of door-plate 15, limit while gag lever post 8 moves reciprocatingly in 7 via hole of retaining spring pedestal when cable vault's door-plate 15 is opened
Position bar 8 need to also be moved in a circle centered on rotary support 3, and the rotation of rotary support 3 is realized by rotary shaft 2.
Operation maintenance personal can open when repairing to the cable apparatus in cable chamber door, and open angle needs to meet 0
≤ β≤120 °, maximum angular need to reach 120 ° because when angle reaches 90 °, operation maintenance personal assemble switchgear attachment or
Connect when repairing cable, cable vault's door-plate can reduce can operating space limitation operation maintenance personal carry out the work, therefore cable chamber door
Plate maximum opening angle need to meet hexagonal angle degree requirement.When its cable vault's door-plate 15 of high-tension switch gear equipped with position-limit mechanism is opened
The freely unordered rotation of cable vault's door-plate is avoided, position-limit mechanism can do quantitative limit and be fixed to 15 opening angle of cable vault's door-plate,
It prevents it from crushing operation maintenance personal under the action of enabling inertia, reduces the rigidity to cable vault's door-plate surrounding metal structures part
It hits and wears.Position-limit mechanism structure is simple, small in size, flexible, stable, is loaded on 22 bottom of cable vault's door-plate 15 and hinge
Portion avoids interference with high-tension switch gear component.
Further, the position-limit mechanism of metal armored withdrawal-type switching device door-plate is switch equipment cable vault door-plate
15 switch angles provide reliable limit, technical principle are as follows: rotary support 3 is fixed on cable vault's door-plate 15 by bolt 1, only
Dynamic spring seat 7 is fixed on switchgear threshold crossbeam 13 by fixed baffle 6, and 8 straight-arm end of gag lever post is connected by rotary shaft 2
In rotary support 3, end of cranking arm can move reciprocatingly in 7 via hole of retaining spring pedestal.Cable vault is opened under the effect of external force
Men Shi, cable vault's door-plate 15 and choosing are turned support 3 and are moved in a circle centered on hinge 22, while gag lever post 8 is in rotary support 3
It moves reciprocatingly in 7 via hole of retaining spring pedestal under pulling force and is moved in a circle simultaneously with hinge 22 for the center of circle, in order to meet
8 two kinematic pair requirements of gag lever post, rotary support 3 and the design of 8 straight-arm connecting pin of gag lever post have rotary shaft 2；The design of gag lever post 8 has
It is straight to correspond to gag lever post 8 when door-plate 15 opening angle in cable vault's is less than 30 ° for 30 ° of grooves, 60 ° of grooves, 90 ° of grooves, 120 ° of grooves
Arm end, at this time ball 12 under the elastic force effect of retaining spring 10 along two side roll of straight-arm, since straight-arm is smooth circular arc face, because
This cable vault's door-plate 15 can smoothly be opened into 30 ° of grooves, and when cable vault's door-plate 15 continues starting, pause is in the rolling in 30 ° of grooves
Pearl 12 is by the projections compress of groove side along rolling of cranking arm, and 10 energy storage cable vault door-plate 15 of retaining spring opens torque and becomes larger, when outer
When the power that portion is applied to cable vault's door-plate 15 continues to increase, ball 12 crosses 8 protrusion of gag lever post, and cable vault's door-plate 15 can be opened smoothly
It opens to 60 ° of grooves, the switching of remaining limit angle is same as described above.Entire position-limit mechanism independently of high-tension switch gear,
Meet interchangeability, cable vault's door-plate is again without remaining door-plate switching mechanism in addition to position-limit mechanism.
Gag lever post 8 may be stuck in 8 groove of gag lever post under the effect of 10 elastic force of retaining spring by arc transition, ball 12,
Without remaining locking mechanism.Ball 12 can be in gag lever post 8 under the promotion of operation maintenance personal's external force for switch equipment cable vault door-plate 15
The switching at door plate opening angle is realized in end reciprocating movement of cranking arm, and position-limit mechanism coupling mechanism force under natural conditions, which can lock gag lever post, makes electricity
Cable room door-plate does not rotate freely.
Embodiment of above is a kind of working principle of the position-limit mechanism of metal armored withdrawal-type switching device door-plate, structure
Simply it is easily installed and is able to achieve the switch angle limit of high-tension switch gear cable chamber door 15.Prevent operation maintenance personal in electricity
Cable room door-plate 15 switch inertia force and crosswind force effect under, do freely unordered rotation when collision crush operation maintenance personal and
Unnecessary rigid collision occurs with cable vault's door-plate surrounding mechanics, makes that high-tension switch gear is more humane in design, operation
It is more reliable, the service life is longer.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (6)
1. a kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate, it is characterised in that: including gag lever post, rotation branch
Seat, fixed baffle and retaining spring pedestal, the gag lever post include the straight-arm end of integrally connected and end of cranking arm, and the straight-arm end is logical
It crosses rotary shaft to be connected with the rotary support, the rotary support is fixedly connected with cable vault's door-plate；The retaining spring pedestal
It is installed on the threshold crossbeam of switchgear by the fixed baffle, retaining spring is installed in the retaining spring pedestal,
The end of cranking arm for being provided with multiple grooves is engaged by clamping with the retaining spring.
2. the position-limit mechanism of metal armored withdrawal-type switching device door-plate according to claim 1, it is characterised in that: described
One end of rotary support and the gag lever post is clearance fit.
3. the position-limit mechanism of metal armored withdrawal-type switching device door-plate according to claim 1, it is characterised in that: described
The end setting of cranking arm of gag lever post there are four groove of shifting gears, four grooves respectively correspond 30 ° of cable vault's door-plate opening angle, 60 °,
90 ° and 120 °.
4. the position-limit mechanism of metal armored withdrawal-type switching device door-plate according to claim 3, it is characterised in that: described
The position that retaining spring end is contacted with gag lever post is fixed with ball jacket, and the ball in the ball jacket is for fixing described change
Keep off the position of groove.
5. the position-limit mechanism of metal armored withdrawal-type switching device door-plate according to claim 3, it is characterised in that: described
Shift groove is circular arc fairing transition type groove.
6. the position-limit mechanism of metal armored withdrawal-type switching device door-plate according to claim 1, it is characterised in that: described
Cranking arm for gag lever post holds end to be wholely set limit plate, and the centre that the section of the limit plate is greater than the retaining spring is cut
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509423.9A CN110098577A (en) | 2019-06-13 | 2019-06-13 | A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509423.9A CN110098577A (en) | 2019-06-13 | 2019-06-13 | A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110098577A true CN110098577A (en) | 2019-08-06 |
Family
ID=67450793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910509423.9A Pending CN110098577A (en) | 2019-06-13 | 2019-06-13 | A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110098577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910873A (en) * | 2021-09-07 | 2022-01-11 | 杨谦 | Safety vehicle door capable of reducing impact injury |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076714U (en) * | 2010-12-31 | 2011-12-14 | 广州白云电器设备股份有限公司 | Back door interlocking device of high-voltage removable-type AC metal enclosed switch device |
| CN202187635U (en) * | 2011-07-13 | 2012-04-11 | 比亚迪股份有限公司 | Car door limiting stopper |
| CN202578233U (en) * | 2012-04-10 | 2012-12-05 | 北京汽车股份有限公司 | Car door stop and car |
| CN203584084U (en) * | 2013-11-08 | 2014-05-07 | 北京汽车股份有限公司 | Door check, automatic door control system and vehicle |
| CN104847209A (en) * | 2014-06-27 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle and door limiter and door collision prevention device thereof |
| CN208056936U (en) * | 2017-12-28 | 2018-11-06 | 杭州银杉家具有限公司 | A kind of bidirectional gate of elasticity automatic locking |
| CN209786616U (en) * | 2019-06-13 | 2019-12-13 | 宁夏力成电气集团有限公司 | Limiting mechanism of metal armored movable type switch equipment door plate |
-
2019
- 2019-06-13 CN CN201910509423.9A patent/CN110098577A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076714U (en) * | 2010-12-31 | 2011-12-14 | 广州白云电器设备股份有限公司 | Back door interlocking device of high-voltage removable-type AC metal enclosed switch device |
| CN202187635U (en) * | 2011-07-13 | 2012-04-11 | 比亚迪股份有限公司 | Car door limiting stopper |
| CN202578233U (en) * | 2012-04-10 | 2012-12-05 | 北京汽车股份有限公司 | Car door stop and car |
| CN203584084U (en) * | 2013-11-08 | 2014-05-07 | 北京汽车股份有限公司 | Door check, automatic door control system and vehicle |
| CN104847209A (en) * | 2014-06-27 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle and door limiter and door collision prevention device thereof |
| CN208056936U (en) * | 2017-12-28 | 2018-11-06 | 杭州银杉家具有限公司 | A kind of bidirectional gate of elasticity automatic locking |
| CN209786616U (en) * | 2019-06-13 | 2019-12-13 | 宁夏力成电气集团有限公司 | Limiting mechanism of metal armored movable type switch equipment door plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910873A (en) * | 2021-09-07 | 2022-01-11 | 杨谦 | Safety vehicle door capable of reducing impact injury |
| CN113910873B (en) * | 2021-09-07 | 2023-12-08 | 磐安县天诚科技有限公司 | Safety vehicle door capable of reducing impact injury |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110098577A (en) | A kind of position-limit mechanism of metal armored withdrawal-type switching device door-plate | |
| CN206401210U (en) | A kind of cable chamber door and the mechanical interlocks of line-to-ground | |
| CN206163975U (en) | Cubical switchboard door interlocking device and cubical switchboard | |
| CN102881486B (en) | Interlocking mechanism of medium pressure switchgear | |
| CN209786616U (en) | Limiting mechanism of metal armored movable type switch equipment door plate | |
| CN202816715U (en) | Spring energy-storage control module, operating mechanism thereof and circuit breaker | |
| RU2675288C1 (en) | Small-sized motor drive | |
| CN207529893U (en) | A kind of circuit breaker operation mechanism | |
| CN114110049B (en) | Braking device of high-voltage switch mechanism | |
| CN212380844U (en) | Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism | |
| CN101908424B (en) | Anti-locking mechanism of switch apparatus | |
| CN212518024U (en) | Make things convenient for cubical switchboard of cubical switchboard door | |
| CN210592495U (en) | Sun wing spreading mechanism | |
| CN204706505U (en) | For the large power spring operation mechanism of primary cut-out | |
| CN206893487U (en) | A kind of interlock that can effectively prevent the back door maloperation of switchgear double-open type | |
| CN111884118A (en) | Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism | |
| CN201868263U (en) | Withdrawable switchgear grounding switch operating device | |
| CN206789452U (en) | A kind of interlock based on cam lock | |
| CN205960508U (en) | Cubical switchboard and interlocking device that trigger more thereof | |
| CN217656221U (en) | Switch cabinet | |
| CN217882386U (en) | High tension switchgear valve drive structure | |
| CN2151528Y (en) | Electromechanic linkage locking apparatus | |
| CN212342539U (en) | Interlocking mechanism of switch cabinet grounding switch and back door | |
| CN219873201U (en) | Operating mechanism for electrical cabinet | |
| CN218940415U (en) | Block terminal for electrical engineering with safeguard function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Cheng Inventor after: Wu Yanli Inventor after: Song Fanglong Inventor after: Cao Jianhua Inventor after: He Zhijuan Inventor after: Guo Yulong Inventor after: Ma Lijun Inventor after: Zhou Jing Inventor before: Ma Lijun Inventor before: Wu Yanli Inventor before: Song Fanglong Inventor before: Cao Jianhua Inventor before: He Zhijuan Inventor before: Guo Yulong Inventor before: Li Cheng Inventor before: Zhou Jing |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |