CN109244921A - A kind of mechanical interlocking structure of switchgear - Google Patents

A kind of mechanical interlocking structure of switchgear Download PDF

Info

Publication number
CN109244921A
CN109244921A CN201811072525.0A CN201811072525A CN109244921A CN 109244921 A CN109244921 A CN 109244921A CN 201811072525 A CN201811072525 A CN 201811072525A CN 109244921 A CN109244921 A CN 109244921A
Authority
CN
China
Prior art keywords
gear
cabinet ontology
detent
mechanical interlocking
drawer
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.)
Granted
Application number
CN201811072525.0A
Other languages
Chinese (zh)
Other versions
CN109244921B (en
Inventor
赵成雷
陈正茂
张传荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG QIUJING ELECTRICAL Ltd Co
Original Assignee
GUANGDONG QIUJING ELECTRICAL Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGDONG QIUJING ELECTRICAL Ltd Co filed Critical GUANGDONG QIUJING ELECTRICAL Ltd Co
Priority to CN201811072525.0A priority Critical patent/CN109244921B/en
Publication of CN109244921A publication Critical patent/CN109244921A/en
Application granted granted Critical
Publication of CN109244921B publication Critical patent/CN109244921B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/12Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/173Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/02Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Drawers Of Furniture (AREA)

Abstract

The invention discloses a kind of mechanical interlocking structures of switchgear, including cabinet ontology, installation drawer, installation drawer is slidably connected with cabinet ontology, installation drawer two sides are equipped with horizontal recessed groove, it is equipped with row's limit hole and arc slot on two recessed grooves, installs and is additionally provided with circular hole by that inboard end on drawer two sides;The inside of the wherein side of the two sides of cabinet ontology is equipped with detent component and limiting component, and detent component includes detent gear, angular wheel transmission mechanism and fixed gear;It include detent gear and limiting component inside the other side of the two sides of cabinet ontology, the double wedge of detent gear is inserted into limit hole, and limiting component includes swingle, spacing ball, spacing block set and telescopic shaft.The present invention can enable installation drawer that position positioning is being needed to block, and installation drawer can also be enable to pull out and tilt down certain angle, and the more convenient inside to installation drawer carries out inspection operation.

Description

A kind of mechanical interlocking structure of switchgear
Technical field
The present invention relates to relate to switch cabinet equipment field, and in particular to a kind of mechanical interlocking structure of switchgear.
Background technique
The main function of switchgear be generated electricity in electric system, transmitted electricity, the conversion of distribution and electric energy during, carry out Folding, control and protection electrical equipment.General switchgear is not provided with locking mechanism between drawer unit and cabinet body, right It is to be easy sliding that electric components in drawer unit, which carry out operation,;Extract out drawer unit to the electrical component in drawer unit into When row checks operation, present drawer directly can only go out directly to enter, and be not easy to operate.
Summary of the invention
The purpose of the present invention is to solve one of above problems.
To achieve the goals above, the present invention provides a kind of mechanical interlocking structures of switchgear, including cabinet ontology, installation Drawer, the installation drawer are slidably connected with the cabinet ontology, and the installation drawer two sides are equipped with horizontal recessed groove, and two Be equipped with row's limit hole and arc slot on the recessed groove, the arc slot be arranged on recessed groove close to it is inboard that It holds, is additionally provided with circular hole by that inboard end on the installation drawer two sides;The inside of the wherein side of the two sides of the cabinet ontology is set There are detent component and limiting component, the detent component includes detent gear, angular wheel transmission mechanism and fixed gear; It include detent gear and limiting component inside the other side of the two sides of the cabinet ontology, the double wedge of the detent gear is inserted into institute It states in limit hole, the limiting component includes swingle, spacing ball, spacing block set and telescopic shaft, the spacing ball and limit Position convex block is respectively fixedly connected at the both ends of the swingle, and the spacing block set is abutted with one end of the telescopic shaft, the rotation Bar can be rotated around center, in the scalable insertion circular hole of telescopic shaft.
Further, the angular wheel transmission mechanism includes intermeshing master bevel gear and secondary bevel gear, is also wrapped Include transmission shaft one and transmission shaft two.
Further, one end of the transmission shaft one and the middle part of the detent gear are connected, the other end and the main cone The middle part of gear is connected, and the middle part of one end of the transmission shaft two and the secondary bevel gear is connected, the other end and the fixed tooth The middle part of wheel is connected.
Further, the detent gear protrudes the two sides inner surface of the cabinet ontology and is caught in the limit of the installation drawer In the hole of position.
Further, the fixed gear is arranged on the side of the opening of the cabinet ontology.
Further, the side of the opening of the cabinet ontology is additionally provided with strip hole on the position of the fixed gear.
Further, sliding is provided with strip in the strip hole, and the strip can be sliding towards the fixed gear direction It is dynamic, and be inserted between the teeth of the fixed gear, the fixed fixed gear is able to rotate it not.
Further, cabinet ontology two sides inner surface is equipped with upper rail and lower railway, and the installation drawer is described It is slided between upper rail and the lower railway.
Further, gear mouth, spacing ball mouth are equipped at cabinet body openings between the upper rail and lower railway And flexible axis hole, a part, a part of spacing ball of the detent gear are protruded from the gear mouth, spacing ball mouth respectively The inner surface of the two sides of the cabinet ontology, the telescopic shaft can be stretched out from the flexible axis hole.
Further, the installation drawer bottom is equipped with idler wheel, and the idler wheel can slide on the lower railway.
Compared with prior art, the present invention having the following advantages that and effect: a kind of mechanical interlocking of switchgear of the invention Structure, by the detent component that is equipped with, it can be achieved that the detent of the installation drawer, enables the installation drawer that position to be needed to determine It blocks position;By the way that limiting component is arranged, the installation drawer can be enable to pull out and tilt down certain angle, be more convenient to described The electric components of installation drawer carry out inspection operation.
Detailed description of the invention
Fig. 1 is a kind of installation drawer of switchgear of the embodiment of the present invention and the structural schematic diagram of detent component;
Fig. 2 is after a kind of cabinet ontology of the mechanical interlocking structure of switchgear of the embodiment of the present invention pulls out the installation drawer Schematic diagram of internal structure;
Fig. 3 is a kind of structural schematic diagram of the cabinet ontology of the mechanical interlocking structure of switchgear of the embodiment of the present invention;
Fig. 4 is that signal is amplified in a kind of part of inside of the cabinet ontology of the mechanical interlocking structure of switchgear of the embodiment of the present invention Figure;
Fig. 5 is a kind of structural representation of the limiting component of the cabinet ontology of the mechanical interlocking structure of switchgear of the embodiment of the present invention Figure.
Description of symbols:
1- cabinet ontology;2- installs drawer;3- recessed groove;4- limit hole;5- arc slot;The two sides of 6- installation drawer;7- Circular hole;8- detent gear;9- swingle;10- spacing ball;11- spacing block set;12- telescopic shaft;13- master bevel gear;14- pair cone Gear;15- transmission shaft one;16- transmission shaft two;17- fixes gear;18- upper rail;19- lower railway;20- gear mouth;21- limit Position ball mouth;22- stretches axis hole;23- strip.
Specific embodiment
The exemplary embodiments for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that this Invention can have various variations in different embodiments, neither depart from the scope of the present invention, and it is therein explanation and Diagram inherently is illustrated as being used, rather than to limit the present invention.
A kind of mechanical interlocking structure of switchgear as shown in Figure 1, including cabinet ontology 1, installation drawer 2, the installation drawer 2 The electrical devices such as breaker and disconnecting switch are installed, the installation drawer 2 is slidably connected with the cabinet ontology 1, the installation 2 two sides of drawer are equipped with horizontal recessed groove 3, the recessed groove 3 relative to the installation drawer two sides 6 toward sunken inside, two Row's limit hole 4 and arc slot 5 are equipped on a recessed groove 3, the setting of arc slot 5 is leaned on recessed groove 3 Nearly that end of inboard, that is, by inboard on that side of the separate opening in the inboard of the cabinet ontology 1,2 two sides of installation drawer That end is additionally provided with circular hole 7, and in order to adapt to the length of the arc slot 5, recessed groove locating for the arc slot 5 is than the limit Recess groove width locating for the hole 4 of position is big, and the circular hole 7 is located on the two sides 6 of the installation drawer;The two sides of the cabinet ontology 1 Wherein side inside be equipped with detent component and limiting component, the detent component include detent gear 8, angular wheel pass Motivation structure and fixed gear 17;The other side inside of the two sides of the cabinet ontology 1 includes detent gear 8 and limiting component, The teeth of the detent gear 8 are inserted into the limit hole 4, and the limiting component includes swingle 9, spacing ball 10, limit convex Block 11 and telescopic shaft 12, the spacing ball 10 and spacing block set 11 are respectively fixedly connected in the both ends of the swingle 9, the limit Position convex block 11 is abutted with one end of the telescopic shaft 12, and the swingle 9 can be rotated around center, and the telescopic shaft 12 can be stretched Contracting is inserted into the circular hole 7.
The angular wheel transmission mechanism includes intermeshing master bevel gear 13 and secondary bevel gear 14, further includes transmission Axis 1 and transmission shaft 2 16.The transmission shaft 1 and transmission shaft 2 16 are each attached to original place rotation.The conical tooth Wheel drive mechanism can be by the rotation of the rotation conversion of vertical direction horizontally.
One end of the transmission shaft 1 and the middle part of the detent gear 8 are connected, the other end and the master bevel gear 13 Middle part be connected, the middle part of one end of the transmission shaft 2 16 and the secondary bevel gear 14 is connected, the other end and the fixed tooth The middle part of wheel 17 is connected.When pushing and pulling the installation drawer 2, the detent gear 8 follows rotation, then the moving axis 1 drives The master bevel gear 13 rotates, and the pair bevel gear 14 rotates, and the last fixed gear 17 rotates.
The detent gear 8 protrudes the two sides inner surface of the cabinet ontology 1 and its teeth is caught in the limit for installing drawer 2 In the hole 4 of position.When pulling the installation drawer 2, the detent gear 8 can also be followed by rotation, the double wedge of the detent gear Also it is extracted out again after being sequentially inserted into therewith in the limit hole 4.
The fixed gear 17 is arranged on the side of the opening of the cabinet ontology 1.The fixed gear 17 can be described It is smoothly rotated on the side of the opening of cabinet ontology 1.
The side of the opening of the cabinet ontology 1 is additionally provided with strip hole on the position of the fixed gear 17.It is described solid Fixed gear 17 covers the strip hole of part.
Sliding is provided with strip 23 in the strip hole, and the strip 23 can be slided towards fixed 17 direction of gear, And be inserted between the teeth of the fixed gear 17, the fixed fixed gear 17 is able to rotate it not.Realize the fixed tooth The detent of wheel is fixed.
The 1 two sides inner surface of cabinet ontology is equipped with upper rail 18 and lower railway 19, and the installation drawer 2 is in the upper rail It is slided between road 18 and the lower railway 19.The upper rail 18 close to described that end of cabinet body openings is the arc to raise upward Structure will not block the installation drawer 2 by inboard angle when the installation drawer 2 rotation.The lower railway is close to described That end of cabinet body openings tilts down, and when the installation drawer 2 pulls out, can tilt down and be against dipping down for the lower railway On oblique orbit.
Gear mouth 20, spacing ball mouth 21 are equipped with close to 1 opening of cabinet ontology between the upper rail 18 and lower railway 19 And flexible axis hole 22, a part of the detent gear 8, a part of spacing ball 10 are respectively from the gear mouth 20, limit Ball mouth 21 protrudes the inner surface of the two sides of the cabinet ontology 1, and the telescopic shaft 12 can be stretched out from the flexible axis hole 22.When described The two sides 6 of drawer are installed by the lateral inner of cabinet ontology 1 described in 10 jacking of spacing ball, so that the telescopic shaft 12 be ejected Come, puts in the circular hole 22.Realize that the installation drawer 2 can be swung up and down around the telescopic shaft 12.
It is longer that end length closer to inboard is arranged on recessed groove 3 in the arc slot 5, and its arc is convex outward Out, when the installation drawer 2 is swung up and down around the telescopic shaft 12, the teeth of the detent gear 8 can be in the arc strip The inner movement in hole 5, so that the detent gear 8 will not be stuck.
2 bottom of installation drawer is equipped with idler wheel.The idler wheel can slide on the lower railway 19.Pass through setting Idler wheel, so that the installation drawer 2 is slided more smooth in orbit.
Working principle: when pulling the installation drawer 2, the detent gear 8 and the fixed gear 17 follow rotation, When on the position for being pulled out to needs, sliding the strip 23 makes it fix the fixed gear 17, and the installation can be made to take out Drawer 2 blocks at the desired position;When needing to detect operation to the circuit components in the installation drawer 2, the installation is taken out The drawing of drawer 2 is at the end, and the telescopic shaft 12 is put in the circular hole 7, then the installation drawer 2 then can be around about 12 telescopic shaft It swings.
In conclusion a kind of mechanical interlocking structure of switchgear of the invention, by the detent component that is equipped with, it can be achieved that institute The detent for stating installation drawer enables the installation drawer that position positioning to be needed to block;By the way that limiting component is arranged, can make described Installation drawer can pull out and tilt down certain angle, and the more convenient electric components to the installation drawer check Operation.
Above embodiments are only to illustrate the technical solution of the application, rather than its limitations;Although with reference to the foregoing embodiments The application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these modification or Replacement, the protection scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (10)

1. a kind of mechanical interlocking structure of switchgear, it is characterised in that: including cabinet ontology (1), installation drawer (2), the installation Drawer (2) is slidably connected with the cabinet ontology (1), and installation drawer (2) two sides are equipped with horizontal recessed groove (3), and two Row's limit hole (4) and arc slot (5) are equipped on the recessed groove (3), the arc slot is arranged in recessed groove (3) It is upper to be additionally provided with circular hole (7) by that inboard end on that inboard end, installation drawer (2) two sides;The two of the cabinet ontology (1) The inside of the wherein side of side is equipped with detent component and limiting component, and the detent component includes detent gear (8), conical tooth Wheel drive mechanism and fixation gear (17);Be equipped with inside the other sides of the two sides of the cabinet ontology (1) detent gear (8) and Limiting component, the double wedge of the detent gear (8) are inserted into the limit hole (4), the limiting component include swingle (9), Spacing ball (10), spacing block set (11) and telescopic shaft (12), the spacing ball (10) and spacing block set (11) are respectively fixedly connected At the both ends of the swingle (9), the spacing block set (11) abuts with one end of the telescopic shaft (12), the swingle (9) it can be rotated around center, in the scalable insertion circular hole (7) of telescopic shaft (12).
2. a kind of mechanical interlocking structure of switchgear according to claim 1, it is characterised in that: the angular wheel transmission Mechanism includes intermeshing master bevel gear (13) and secondary bevel gear (14), further includes transmission shaft one (15) and transmission shaft two (16)。
3. a kind of mechanical interlocking structure of switchgear according to claim 2, it is characterised in that: the transmission shaft one (15) One end and the middle part of the detent gear (8) be connected, the middle part of the other end and the master bevel gear (13) is connected, the transmission One end of axis two (16) and the middle part of the secondary bevel gear (14) are connected, and the middle part of the other end and the fixed gear (17) is solid Even.
4. a kind of mechanical interlocking structure of switchgear according to claim 3, it is characterised in that: the detent gear (8) It protrudes the two sides inner surface of the cabinet ontology (1) and is caught in the limit hole (4) of installation drawer (2).
5. a kind of mechanical interlocking structure of switchgear according to claim 1, it is characterised in that: the fixed gear (17) It is arranged on the side of the opening of the cabinet ontology (1).
6. a kind of mechanical interlocking structure of switchgear according to claim 5, it is characterised in that: the cabinet ontology (1) The side of opening is additionally provided with strip hole on the position of the fixed gear (17).
7. a kind of mechanical interlocking structure of switchgear according to claim 6, it is characterised in that: slided in the strip hole It is provided with strip (23), the strip (23) can be slided towards fixed gear (17) direction, and be inserted into the fixed gear (17) between teeth, the fixed fixed gear (17) is able to rotate it not.
8. a kind of mechanical interlocking structure of switchgear according to claim 7, it is characterised in that: the cabinet ontology (1) two Side inner surface is equipped with upper rail (18) and lower railway (19), the installation drawer (2) the upper rail (18) with it is described under Track slides between (19).
9. a kind of mechanical interlocking structure of switchgear according to claim 8, it is characterised in that: the upper rail (18) with And gear mouth (20), spacing ball mouth (21) and flexible axis hole are equipped with close to cabinet ontology (1) opening between lower railway (19) (22), a part of the detent gear (8), a part of spacing ball (10) are respectively from the gear mouth (20), spacing ball mouth (21) inner surface of the two sides of the cabinet ontology (1) is protruded, the telescopic shaft (12) can stretch out from the flexible axis hole (22).
10. a kind of mechanical interlocking structure of switchgear according to claim 9, it is characterised in that: the installation is taken out Drawer (2) bottom is equipped with idler wheel, and the idler wheel can slide on the lower railway (19).
CN201811072525.0A 2018-09-14 2018-09-14 Mechanical interlocking structure of switch cabinet Active CN109244921B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811072525.0A CN109244921B (en) 2018-09-14 2018-09-14 Mechanical interlocking structure of switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811072525.0A CN109244921B (en) 2018-09-14 2018-09-14 Mechanical interlocking structure of switch cabinet

Publications (2)

Publication Number Publication Date
CN109244921A true CN109244921A (en) 2019-01-18
CN109244921B CN109244921B (en) 2020-10-02

Family

ID=65058423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811072525.0A Active CN109244921B (en) 2018-09-14 2018-09-14 Mechanical interlocking structure of switch cabinet

Country Status (1)

Country Link
CN (1) CN109244921B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035082A1 (en) * 1990-11-05 1992-05-07 Ceag Licht & Strom Switch cabinet for LV switching appts. - uses wheeled retractable module forwards secured by clip when tipped forwards
JP2006149043A (en) * 2004-11-18 2006-06-08 Terasaki Electric Co Ltd Interlock device of distribution panel
CN101199382A (en) * 2006-12-15 2008-06-18 鸿富锦精密工业(深圳)有限公司 Slideway device
JP2013013326A (en) * 2012-10-19 2013-01-17 Fuji Electric Co Ltd Switchboard
CN204499945U (en) * 2014-12-29 2015-07-29 无锡鼎闰精密机械有限公司 Novel drug cabinet drawer and medicine-chest structure thereof
CN104953500A (en) * 2015-07-16 2015-09-30 江苏华鹏智能电气股份有限公司 Primary contact propulsion device for low-voltage switchgear
CN106152695A (en) * 2016-07-15 2016-11-23 青岛海尔股份有限公司 Slide mechanism of drawer and there is its refrigerator
CN207409915U (en) * 2017-11-28 2018-05-25 桐乡市华宇电力设备有限公司 A kind of GCS low voltage drawing-out switching carbinets
CN207666273U (en) * 2017-07-08 2018-07-31 北京求实工程管理有限公司 Convenient file cabinet
CN207782263U (en) * 2018-01-05 2018-08-28 中山市明阳电器有限公司 Dropproof drawer applied to rail traffic low pressure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035082A1 (en) * 1990-11-05 1992-05-07 Ceag Licht & Strom Switch cabinet for LV switching appts. - uses wheeled retractable module forwards secured by clip when tipped forwards
JP2006149043A (en) * 2004-11-18 2006-06-08 Terasaki Electric Co Ltd Interlock device of distribution panel
CN101199382A (en) * 2006-12-15 2008-06-18 鸿富锦精密工业(深圳)有限公司 Slideway device
JP2013013326A (en) * 2012-10-19 2013-01-17 Fuji Electric Co Ltd Switchboard
CN204499945U (en) * 2014-12-29 2015-07-29 无锡鼎闰精密机械有限公司 Novel drug cabinet drawer and medicine-chest structure thereof
CN104953500A (en) * 2015-07-16 2015-09-30 江苏华鹏智能电气股份有限公司 Primary contact propulsion device for low-voltage switchgear
CN106152695A (en) * 2016-07-15 2016-11-23 青岛海尔股份有限公司 Slide mechanism of drawer and there is its refrigerator
CN207666273U (en) * 2017-07-08 2018-07-31 北京求实工程管理有限公司 Convenient file cabinet
CN207409915U (en) * 2017-11-28 2018-05-25 桐乡市华宇电力设备有限公司 A kind of GCS low voltage drawing-out switching carbinets
CN207782263U (en) * 2018-01-05 2018-08-28 中山市明阳电器有限公司 Dropproof drawer applied to rail traffic low pressure

Also Published As

Publication number Publication date
CN109244921B (en) 2020-10-02

Similar Documents

Publication Publication Date Title
CN101837815A (en) Be used to admit the cycle frame of battery unit and relevant battery unit
KR101556570B1 (en) Disconnector Switchgear
CN109244921A (en) A kind of mechanical interlocking structure of switchgear
CN106998636B (en) Electrical cabinet device with self-locking cabinet door angle
CN104577850B (en) A kind of circuit breaker chassis equipped with position indicator
CN109671588A (en) A kind of metal closed switch cabinet grounding switch locking device
CN105428136A (en) Switch interlock device for earthing switch, breaker and rear door of switch cabinet
KR101428853B1 (en) Semiplug-type sliding door system
CN109244922B (en) Push-and-pull structure of switch cabinet
CN105438187B (en) A kind of anti-collision structure of rail traffic platform safety tread
CN208690159U (en) Interlocking mechanism and high-tension switch gear
CN209151447U (en) Novel portable PLC switch board
CN207966794U (en) The mechanical interlock mechanism of high-tension switch cabinet
CN208650757U (en) A kind of combination subway shield door
CN206293809U (en) A kind of low-voltage switch cabinet of drawer propulsive mechanism and low-voltage switch cabinet of drawer
CN206944277U (en) A kind of smoke barrier automatic open-close mechanism and there is its range hood
KR200480162Y1 (en) Withdrawable device for high voltage circuit breaker
CN109167273A (en) A kind of switch cabinet drawer push-pull configuration
CN210618268U (en) Telescopic driving device for bridge detection vehicle and bridge detection vehicle
CN209683476U (en) Automatic extending-contracting apparatus
CN208650759U (en) A kind of safety underground screening door
CN209597944U (en) A kind of coil pipe equipment
CN206962280U (en) A kind of protector on high-voltage complete switch equipment manual knob switch
JP5328567B2 (en) Disconnection mechanism of drawer type electrical equipment
CN220392530U (en) Box pushing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant