CN107342537B - Intelligent power box - Google Patents

Intelligent power box Download PDF

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Publication number
CN107342537B
CN107342537B CN201710715878.7A CN201710715878A CN107342537B CN 107342537 B CN107342537 B CN 107342537B CN 201710715878 A CN201710715878 A CN 201710715878A CN 107342537 B CN107342537 B CN 107342537B
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CN
China
Prior art keywords
fixing plate
rod
sliding door
box
power supply
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.)
Active
Application number
CN201710715878.7A
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Chinese (zh)
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CN107342537A (en
Inventor
张伟
王毅
王宝良
孙广辉
苗勇
鄂文鹏
曲永鹏
葛孝苓
盛飞
苏建敏
王宏坤
史素华
蔡家权
姜志孝
张浥洳
白烁
孙浦
孙雨晴
付辉
姜德龙
东英涛
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.)
Maintenance Branch Of State Grid Liaoning Electric Power Co ltd
State Grid Corp of China SGCC
Original Assignee
Maintenance Branch Of State Grid Liaoning Electric Power Co ltd
State Grid Corp of China SGCC
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.)
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Publication date
Application filed by Maintenance Branch Of State Grid Liaoning Electric Power Co ltd, State Grid Corp of China SGCC filed Critical Maintenance Branch Of State Grid Liaoning Electric Power Co ltd
Priority to CN201710715878.7A priority Critical patent/CN107342537B/en
Publication of CN107342537A publication Critical patent/CN107342537A/en
Application granted granted Critical
Publication of CN107342537B publication Critical patent/CN107342537B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Special Wing (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The utility model provides an intelligence headstock, includes the box, is provided with power operation warning light on the chamber door of box, respectively is provided with a mouth of taking a breath and forms two mouthful structures of taking a breath about the box, is provided with external power supply electricity taking port at the back of box. The intelligent power box is a set of comprehensive device integrating intelligent power switching, automatic fire extinguishing and alarming and automatic drying and ventilation.

Description

Intelligent power box
Technical Field
The invention relates to an intelligent power box.
Background art:
with the rapid development of electric power systems, the automation degree of electric power equipment is continuously improved, and a large amount of high-precision equipment is put into practical production, so that reliable power supply of new equipment must be ensured.
At the present stage, most of the production sites adopt the power boxes which are popularized in the last century and have simple forms. The power box is old in configuration, a double-power-supply switching device adopts a mechanical locking double-air-switch design, and few double-throw knife switches are designed, and both the double-air-switch device and the double-power-supply switching device need manual operation of operators for switching.
The power box is not tightly sealed, and cannot prevent dust and damp. The moisture removing and heating device is simple, and the drying and freezing prevention of the box body are difficult to ensure. The box and the internal equipment are easily corroded, the service life of the parts is shortened, and the risk of equipment failure is increased. Meanwhile, the inner conductor of the power box is not tightly sealed, the conductor is easy to contact during work in the box, the danger of electric shock exists, and the hidden trouble of short circuit also exists.
More importantly, the power box is not internally provided with a fire self-rescue and alarm device, and under the conditions of most easily-occurred overheating and fire, the box body is not internally provided with a fire extinguishing facility and is not provided with alarm configuration.
In addition, an independent external power supply electricity taking port is not provided, so that when external electricity is taken, the problem that the box door is not closed tightly is easily caused, and further, erosion of rain and snow is easily caused, and internal damage is caused.
The invention content is as follows:
the purpose of the invention is as follows: the invention provides an intelligent power box, and aims to solve the problems in the prior art.
The technical scheme is as follows:
the utility model provides an intelligence headstock, includes the box, its characterized in that: the box door of the box body is provided with a power supply operation prompting lamp, the left and the right of the box body are respectively provided with a ventilation port to form a double ventilation port structure, and the back of the box body is provided with an external power supply power taking port.
An upper fixing plate extending outwards is arranged above the external power supply electricity taking port, a lower fixing plate extending outwards is arranged below the external power supply electricity taking port, a left fixing plate and a right fixing plate are respectively arranged on the left side and the right side of the external power supply electricity taking port, the upper ends of the left fixing plate and the right fixing plate are connected to the upper fixing plate, the lower ends of the left fixing plate and the right fixing plate are connected to the lower fixing plate, and the upper fixing plate, the left fixing plate, the lower fixing plate and the right fixing plate are enclosed to form a barrel-shaped structure with a square cross section;
the external power supply electricity taking opening is also provided with a sliding door which is a structure (namely, the left and right directions in the figure 1) capable of being pulled out outwards and pushed inwards along the inner wall of the barrel-shaped structure, the inner wall of the barrel-shaped structure is provided with a sealing ring capable of blocking the sliding door and sealing the periphery of the sliding door, the wall of a box body where the external power supply electricity taking opening is located is of a sandwich structure, and the sandwich structure forms an opening capable of pushing the sliding door into the sandwich layer at the external power supply electricity taking opening;
when the sliding door is closed, the sliding door is pushed to the position of the sealing ring and is locked through a temporary locking device, and the temporary lock comprises a vertical rod, a rotating rod, a clamping frame and a tensioning screw rod; the rotating rod is movably arranged on the vertical rod, can rotate relative to the vertical rod and is vertical to the vertical rod after rotating to form a cross structure; the rotating rod is connected to the rod sleeve of the vertical rod, and the vertical rod can rotate relative to the rod sleeve;
the upper end and the lower end of the vertical rod are respectively provided with a flat bulge which can be inserted into the upper strip-shaped through groove and the lower strip-shaped through groove when in use; the left side and the right side of the sliding door are respectively provided with a left buckle and a right buckle, the two buckles are of L-shaped structures, and the openings of the left buckle and the right buckle are opposite, namely one opening is upward and the other opening is downward; extension rods perpendicular to the rotating rod are arranged at two ends of the rotating rod, and clamping blocks clamped in the openings of the two buckles during use are arranged at the front ends of the extension rods;
the rotating rod is connected with a threaded sleeve with internal threads;
the card frame is the part of card in the upper fixed plate and bottom plate outer end when using, and the tensioning screw rod passes the card frame perpendicularly, and the tensioning screw rod can be for the rotation of card frame but the axial is relatively fixed (tensioning screw rod can the rotation but can not remove in figure 1 for the card frame left-right in order to guarantee the chucking!), and tensioning screw rod stretches into the thread bush and draws pole setting, rotary rod and then taut push-and-pull door through revolving soon during the use.
The rotating rod is connected with an outer sleeve, the outer sleeve is sleeved on the periphery of the inner pipe and can move axially relative to the inner pipe, and the inner pipe is fixedly connected with the rod sleeve;
the inner tube is provided with a limit clamp for preventing the outer sleeve from falling off, and when the outer sleeve pushes the limit clamp tightly, the clamping block clamps the left buckle and the right buckle tightly;
the outer sleeve is internally provided with a top spring which pushes against the outer sleeve and the inner pipe, and the outer sleeve tightly pushes the limiting clamp through the jacking force of the top spring during use.
The upper surface of the upper fixed plate is a slope surface which is inclined downwards in five degrees to form a rain-proof shed structure. The slope of the incline is for drainage.
The ventilation port is provided with an isolation net to prevent dust from entering.
The extension rods of the rotating rods are in threaded connection so as to adjust the length.
The advantages and effects are as follows: the invention provides an intelligent power box, which is a set of comprehensive device integrating intelligent power switching, automatic fire extinguishing and alarming and automatic drying and ventilation.
This headstock disposes dual supply automatic switching control equipment, is equipped with power operation warning light simultaneously on the door plant. The power supply running condition can be accurately and visually checked.
The power box is provided with a temperature and humidity automatic control system and is provided with double air vents, and the positions of the air vents are provided with separation nets and moisture absorption designs to prevent foreign matters from entering the box body.
The box is equipped with redesign's external power source and gets the electricity mouth, when avoiding externally constructing and getting interim power, and the problem that the case door closed not tightly.
The lock of the box door is redesigned, the design of the inserted link is adopted, the single one-point locking is adopted, and the locking is improved into the two-point locking of the inserted link.
Improve the tool to lock simultaneously, adopt the tool to lock of three proofings function, adopt the electromagnetic induction mode, embedded installation reduces the tool to lock ageing, extension tool to lock life.
The inside automatic fire extinguishing device that is equipped with of headstock can put out a fire automatically under the condition that the condition of a fire appears in the incasement, sends audible and visual alarm at the box outside simultaneously.
The intelligent power box can improve various defects of the old power box and improve the operation reliability in the operation process of the field power system.
Simultaneously, interim locking device can be fine with push-and-pull door seal fixed, and rational in infrastructure, it is convenient to lock, and after locking, sealed respond well, simultaneously, the upper fixed plate is domatic rain-proof structure, does benefit to rain-proofly more.
Description of the drawings:
FIG. 1 is a schematic structural view of a temporary locking device;
FIG. 2 is a schematic view of the structure of a vertical rod and a rotating rod;
FIG. 3 is a schematic view of the engagement between the latch and the clip;
FIG. 4 is a schematic view of a left clasp;
FIG. 5 is a schematic view of a right clasp;
FIG. 6 is a schematic view of the vertical bars and the strip-shaped through grooves;
fig. 7 is an enlarged structural view of the temporary locking device.
The specific implementation mode is as follows:
the invention provides an intelligent power box which comprises a box body 1, wherein a power supply operation prompting lamp is arranged on a box door of the box body 1, a ventilation port is respectively arranged on the left and the right of the box body 1 to form a double ventilation port structure, and an external power supply electricity taking port 2 is arranged on the back surface of the box body 1.
An upper fixing plate 3 extending outwards is arranged above the external power supply electricity taking port 2, a lower fixing plate 4 extending outwards is arranged below the external power supply electricity taking port 2, a left fixing plate and a right fixing plate are respectively arranged on the left side and the right side of the external power supply electricity taking port 2, the upper ends of the left fixing plate and the right fixing plate are connected to the upper fixing plate 3, the lower ends of the left fixing plate and the right fixing plate are connected to the lower fixing plate 4, and the upper fixing plate 3, the left fixing plate, the lower fixing plate 4 and the right fixing plate are enclosed to form a barrel-shaped structure with a square cross section;
the external power supply electricity taking port 2 is also provided with a sliding door 5, the sliding door 5 is a structure (namely, the left and right directions in the figure 1) which can be pulled out outwards and pushed inwards along the inner wall of the barrel-shaped structure, the inner wall of the barrel-shaped structure is provided with a sealing ring 6 which can block the sliding door 5 and can seal the periphery of the sliding door 5, the wall of the box body where the external power supply electricity taking port 2 is located is of an interlayer structure, and the interlayer structure forms an opening 7 which can be used for the sliding door 5 to push into the interlayer at the external power supply electricity taking port 2;
when the sliding door 5 is closed, the sliding door is pushed to a position where the sliding door is pushed to the sealing ring 6 and is locked through a temporary locking device, and the temporary lock comprises a vertical rod 8, a rotating rod 9, a clamping frame 10 and a tensioning screw rod 11; the rotating rod 9 is movably arranged on the upright post 8, and the rotating rod 9 can rotate relative to the upright post 8 and is vertical to the upright post 8 after rotating to form a cross structure; the rotating rod 9 is connected to a rod sleeve 14 of the vertical rod 8, and the vertical rod 8 can rotate relative to the rod sleeve 14;
the upper end and the lower end of the sliding door 5 are respectively provided with a connecting rod 12, the connecting rods 12 are respectively provided with a rotating disc 13 capable of rotating on the connecting rods 12, the rotating discs 13 are provided with strip-shaped through grooves 23, the notches of the strip-shaped through grooves 23 of the two rotating discs 13 are oppositely arranged, and the upper end and the lower end of the vertical rod 8 are respectively provided with a flat bulge 15 capable of being inserted into the upper strip-shaped through groove 23 and the lower strip-shaped through groove 23 when in use; the left side and the right side of the sliding door 5 are respectively provided with a left buckle 16 and a right buckle 17, the two buckles are both L-shaped structures, the openings of the left buckle 16 and the right buckle 17 are opposite, namely one opening faces upwards and the other opening faces downwards; an extension rod 18 perpendicular to the rotating rod 9 is arranged at two ends of the rotating rod 9, and a clamping block 19 clamped in the openings of the two buckles during use is arranged at the front end of the extension rod 18;
the rotating rod 9 is connected with a threaded sleeve 20 with internal threads;
the clamping frame 10 is a component clamped at the outer ends of the upper fixing plate 3 and the lower fixing plate 4 when in use, the tensioning screw 11 vertically penetrates through the clamping frame 10, the tensioning screw 11 can rotate relative to the clamping frame 10 but is axially fixed relatively (namely, the tensioning screw 11 can rotate but cannot move left and right relative to the clamping frame 10 in fig. 1 to ensure clamping!), and when in use, the tensioning screw 11 extends into the threaded sleeve 20 to pull the upright rod 8, the rotating rod 9 and further the sliding door.
The rotating rod 9 is connected with an outer sleeve 21, the outer sleeve 21 is sleeved on the periphery of an inner tube 22 and can axially move relative to the inner tube 22, and the inner tube 22 is fixedly connected with a rod sleeve 14;
the inner tube 22 is provided with a limit clamp 24 for preventing the outer sleeve 21 from falling off, and when the outer sleeve 21 tightly pushes the limit clamp 24, the clamping block 19 tightly clamps the left buckle 16 and the right buckle 17;
a top spring 25 is arranged in the outer sleeve 21, the top spring 25 is pressed against the outer sleeve 21 and the inner pipe 22, and the outer sleeve 21 is tightly pressed against the limit clamp 24 through the ejecting force of the top spring 25 in use.
The upper surface of the upper fixed plate 3 is a slope surface inclined downwards in five degrees to form a rain-proof shed structure. The slope of the incline is for drainage.
The position of the air exchange port is provided with an isolation net to prevent dust from entering.
The extension rods 18 of the rotating rods 9 are in threaded connection so as to adjust the length. When the rotating rod 9 is used, the sliding door 5 is pushed into the interlayer opening 7 to be hidden, then electricity is taken from the external power supply electricity taking port 2, after the electricity taking is finished, the sliding door 5 is pulled out, the sliding door 5 is pulled outwards, namely the right side in fig. 1, the sealing ring 6 is tightly pressed against the sliding door 5, the flat bulges 15 at the upper end and the lower end of the vertical rod 8 are inserted into the strip-shaped through groove 23, then the rotating disk 13 is rotated, the length direction of the strip-shaped through groove 23 is parallel to that of the sliding door 5, the rotating disk 13 is designed to be capable of rotating so that the flat bulges 15 can be conveniently inserted into the strip-shaped through groove 23, then the rotating rod 9 is rotated to be perpendicular to the vertical rod 8, meanwhile, the clamping blocks 19 at the two ends of the rotating rod 9 are respectively clamped into the left clamping buckle 16 and the right clamping buckle 17, the openings of the left clamping buckle 16 and the right clamping buckle 17 are opposite, and the clamping blocks are directly clamped into the left buckle 16 and the right buckle 17 in the rotating process of the rotating rod 9; after the clamping is finished, the hand is loosened, under the action of the top spring 25, the outer sleeve 21 drives the rotating rod 9 to move outwards, so that the clamping block 19 is clamped into the left buckle 16 and the right buckle 17 respectively, the clamping block 19 is clamped with the left buckle 16 and the right buckle 17 through the top spring 25, the next step of operation is carried out in order to vacate the hand, then as shown in fig. 1, the clamping frame 10 is clamped at the outer ends of the upper fixing plate 3 and the lower fixing plate 4, the tensioning screw rod 11 extends into the threaded sleeve 20 and is screwed, the upright rod 8 and the rotating rod 9 are tensioned outwards, the sliding door is tensioned, and the sliding door is tightly attached to the sealing ring 6 to complete sealing and closing.

Claims (4)

1. The utility model provides an intelligence headstock, includes box (1), its characterized in that: a power supply operation prompting lamp is arranged on a box door of the box body (1), a ventilation port is respectively arranged on the left and the right of the box body (1) to form a double ventilation port structure, and an external power supply electricity taking port (2) is arranged on the back of the box body (1);
an upper fixing plate (3) extending outwards is arranged above the external power supply electricity taking port (2), a lower fixing plate (4) extending outwards is arranged below the external power supply electricity taking port (2), a left fixing plate and a right fixing plate are respectively arranged on the left side and the right side of the external power supply electricity taking port (2), the upper ends of the left fixing plate and the right fixing plate are connected to the upper fixing plate (3), the lower ends of the left fixing plate and the right fixing plate are connected to the lower fixing plate (4), and the upper fixing plate (3), the left fixing plate, the lower fixing plate (4) and the right fixing plate are enclosed to form a barrel-shaped structure with a square cross section;
the external power supply electricity taking port (2) is also provided with a sliding door (5), the sliding door (5) is of a structure capable of being pulled out outwards and pushed inwards along the inner wall of the barrel-shaped structure, the inner wall of the barrel-shaped structure is provided with a sealing ring (6) capable of blocking the sliding door (5) and sealing the periphery of the sliding door (5), the wall of a box body where the external power supply electricity taking port (2) is located is of an interlayer structure, and the interlayer structure forms an opening (7) capable of pushing the sliding door (5) into the interlayer at the external power supply electricity taking port (2);
when the sliding door (5) is closed, the sliding door is pushed to a position where the sliding door is pushed to the sealing ring (6) and is locked through a temporary locking device, and the temporary locking device comprises a vertical rod (8), a rotating rod (9), a clamping frame (10) and a tensioning screw rod (11); the rotating rod (9) is movably arranged on the upright post (8), the rotating rod (9) can rotate relative to the upright post (8) and is vertical to the upright post (8) after rotating to form a cross structure; the rotating rod (9) is connected to a rod sleeve (14) of the vertical rod (8), and the vertical rod (8) can rotate relative to the rod sleeve (14);
the upper end and the lower end of the sliding door (5) are respectively provided with a connecting rod (12), the connecting rods (12) are respectively provided with a rotating disc (13) capable of rotating on the connecting rods (12), the rotating discs (13) are provided with strip-shaped through grooves (23), the notches of the strip-shaped through grooves (23) of the two rotating discs (13) are oppositely arranged, and the upper end and the lower end of the upright rod (8) are respectively provided with a flat bulge (15) capable of being inserted into the upper strip-shaped through groove (23) and the lower strip-shaped through groove (23) when in use; the left side and the right side of the sliding door (5) are respectively provided with a left buckle (16) and a right buckle (17), the two buckles are of L-shaped structures, the openings of the left buckle (16) and the right buckle (17) are opposite, namely one opening faces upwards and the other opening faces downwards; extension rods (18) perpendicular to the rotating rod (9) are arranged at two ends of the rotating rod (9), and clamping blocks (19) clamped in openings of the two buckles during use are arranged at the front ends of the extension rods (18);
the rotating rod (9) is connected with a threaded sleeve (20) with internal threads;
the clamping frame (10) is a component clamped at the outer ends of the upper fixing plate (3) and the lower fixing plate (4) when in use, the tensioning screw (11) vertically penetrates through the clamping frame (10), the tensioning screw (11) can rotate relative to the clamping frame (10) but is axially and relatively fixed, and the tensioning screw (11) extends into the threaded sleeve (20) and pulls the vertical rod (8) and the rotary rod (9) through screwing so as to tension the sliding door when in use;
the ventilation port is provided with an isolation net.
2. The intelligent power box of claim 1, wherein: the rotating rod (9) is connected with an outer sleeve (21), the outer sleeve (21) is sleeved on the periphery of the inner tube (22) and can move axially relative to the inner tube (22), and the inner tube (22) is fixedly connected with the rod sleeve (14);
a limiting clamp (24) for preventing the outer sleeve (21) from falling off is arranged on the inner pipe (22), and when the outer sleeve (21) props against the limiting clamp (24), the clamping block (19) clamps the left buckle (16) and the right buckle (17);
a top spring (25) is arranged in the outer sleeve (21), the top spring (25) is in top contact with the outer sleeve (21) and the inner pipe (22), and the outer sleeve (21) is tightly pressed against the limiting clamp (24) through the jacking force of the top spring (25) when the device is used.
3. The intelligent power box of claim 1, wherein: the upper surface of the upper fixing plate (3) is a slope surface inclined downwards in five degrees to form a rain-proof shed structure.
4. The intelligent power box of claim 1, wherein: the rotating rod (9) and the extension rod (18) are in threaded connection.
CN201710715878.7A 2017-08-21 2017-08-21 Intelligent power box Active CN107342537B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710715878.7A CN107342537B (en) 2017-08-21 2017-08-21 Intelligent power box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710715878.7A CN107342537B (en) 2017-08-21 2017-08-21 Intelligent power box

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Publication Number Publication Date
CN107342537A CN107342537A (en) 2017-11-10
CN107342537B true CN107342537B (en) 2023-04-11

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Family Applications (1)

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CN201710715878.7A Active CN107342537B (en) 2017-08-21 2017-08-21 Intelligent power box

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581749A (en) * 1944-04-04 1946-10-23 Robert Stanley Chipchase Improvements in or relating to fluid-tight doors, escape hatches, or the like
DE29516383U1 (en) * 1994-11-04 1995-12-07 Alstom Ag, Oberentfelden Viewing window
CN102865021A (en) * 2012-09-11 2013-01-09 河南理工大学 Movable hard rescue capsule emergency door
CN204243493U (en) * 2014-12-03 2015-04-01 东瑞电气有限公司 A kind of regulator cubicle of automatic hidden cabinet door
CN105610060A (en) * 2016-01-14 2016-05-25 珠海市可利电气有限公司 Maintenance sealing cover
CN206116941U (en) * 2016-10-24 2017-04-19 江苏耐维思通科技股份有限公司 Prevent automatic power connection box on bank who drops of plug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581749A (en) * 1944-04-04 1946-10-23 Robert Stanley Chipchase Improvements in or relating to fluid-tight doors, escape hatches, or the like
DE29516383U1 (en) * 1994-11-04 1995-12-07 Alstom Ag, Oberentfelden Viewing window
CN102865021A (en) * 2012-09-11 2013-01-09 河南理工大学 Movable hard rescue capsule emergency door
CN204243493U (en) * 2014-12-03 2015-04-01 东瑞电气有限公司 A kind of regulator cubicle of automatic hidden cabinet door
CN105610060A (en) * 2016-01-14 2016-05-25 珠海市可利电气有限公司 Maintenance sealing cover
CN206116941U (en) * 2016-10-24 2017-04-19 江苏耐维思通科技股份有限公司 Prevent automatic power connection box on bank who drops of plug

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