CN108005720A - A kind of horizontal protective sealed door for the closure of subway ventilation road - Google Patents
A kind of horizontal protective sealed door for the closure of subway ventilation road Download PDFInfo
- Publication number
- CN108005720A CN108005720A CN201711274003.4A CN201711274003A CN108005720A CN 108005720 A CN108005720 A CN 108005720A CN 201711274003 A CN201711274003 A CN 201711274003A CN 108005720 A CN108005720 A CN 108005720A
- Authority
- CN
- China
- Prior art keywords
- door
- steel
- door frame
- horizontal protective
- door leaf
- 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
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000006096 absorbing agent Substances 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 9
- 206010029987 Obturator Hernia Diseases 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 230000007123 defense Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/12—Dam doors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Special Wing (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a kind of horizontal protective sealed door for the closure of subway ventilation road, including door leaf, steel door frame, hinge page and blocking device, the steel door frame to be horizontally fixed in wall, and door leaf is connected on steel door frame by hinge page；Blocking device is arranged on steel door frame, its installation site is corresponding with the obturator hernia set on door leaf；Electromagnet mounting base is installed on steel door frame with locking set by bolt, and towed electromagnet is installed in electromagnet mounting base by bolt, and towed electromagnet is connected with locking head by connecting rod；The compression spring one end is contacted with the end flange of towed electromagnet, its other end is contacted with the end flange of locking head；Horizontal protective sealed door further includes wave absorber, it is installed on door leaf, and wave absorber uses sebific duct wave absorption.Horizontal protective sealed door provided by the invention, it is rational in infrastructure, the protection airtight in subway ventilation road can be fast and effectively completed, the area of subway ventilation road shield segment is significantly reduced, effectively reduces building cost.
Description
Technical field
The present invention relates to Technology for Civil Air Defence Projects field, more particularly to a kind of horizontal protective for the closure of subway ventilation road are close
Close door.
Background technology
According to professional standard《Railway traffic engineering people's air defence design specification》（RFJ02-2009）Ventilating opening protection is set
It is standby to require：When setting attenuating shock wave system into, exhaust outlet, the protection airtight into, exhaust system should meet：During using building tunnel,
Airtight blast door and setting for sealed door should be consistent with the airtight blast door and sealed door quantity that wartime personnel's entrance is set；
Wartime clean ventilation road preferably uses gate-type ventilating system；Specialize in usually use into, exhaust outlet, the protection airtight in wartime should be with going out
The closed measure of entry protector is adapted.
The people's air defense section of the air inlet and out let of subway is generally arranged at horizontal component, to facilitate installation gate-type safeguard.On the spot
For the anti-planning and designing of iron man, when creating on underground rail periphery, reconstruct building, to take into full account track traffic operation and build
The safety of engineering is built, is required according to the related specifications of track traffic, fully steps back track traffic control line, but in order to meet people's air defense
It is required that people's air defense section needs 2~3 door frame safeguard of installation, determinants air passage area is more, be easy to cause that to go beyond roading red
Line, the urban sector of an inch of land is an inch of gold is excessive there are removal cost the problem of, even resulting in remove.
In order to reduce the floor space of subway ventilation road horizontal protective section, it is necessary to which safeguard is installed on air shaft
In, therefore, there is an urgent need for set a kind of horizontal protective hermatic door, the closure for subway ventilation pipe shaft.
The content of the invention
The purpose of the present invention is for above technical problem, there is provided a kind of horizontal protective for the closure of subway ventilation road is close
Door is closed, trying one's best in line with the design of subway people's air defense shield segment, simple, subway station periphery amount of demolition is few, few principle is disturbed in construction, soon
The fast effective protection airtight for realizing subway ventilation road.
Technical scheme
In order to solve the above technical problems, a kind of horizontal protective sealed door for the closure of subway ventilation road provided by the invention, is used
In the closure of ventilation shaft vertical shaft, it includes door leaf, steel door frame, hinge page and blocking device, and the steel door frame is horizontally fixed on wall
In body, door leaf is connected on steel door frame by hinge page；The blocking device is arranged on steel door frame, in its installation site and door leaf
The obturator hernia of setting is corresponding；Blocking device is by electromagnet mounting base, towed electromagnet, compression spring, connecting rod, locking head
And locking set composition；The electromagnet mounting base is installed on steel door frame with locking set by bolt, and towed electromagnet passes through
Bolt is installed in electromagnet mounting base, and towed electromagnet is connected with locking head by connecting rod；The compression spring is set
In the outside of connecting rod, compression spring one end is contacted with the end flange of towed electromagnet, the end of its other end and locking head
Portion's flange contact；The horizontal protective sealed door further includes wave absorber, it is installed on door leaf, and the wave absorber uses glue
Pipe wave absorption.
Further, the quantity of the door leaf is two pieces, it is formed by shaped steel and the weldering of panel group；Set in the middle part of the door leaf
It is equipped with ventilation hole, the disposed at air vent on the outside of door leaf is provided with wave absorber, and the disposed at air vent on the inside of door leaf is provided with sealed valve.
The exterior installation sealed valve of ventilation hole, to realize the closed and clean ventilation to wave absorber, effective guarantee horizontal protective is close
Close the good operation of door.
Further, the horizontal protective sealed door further includes headstock gear, it includes electrical hoist, fixed pulley, moves
Pulley, rope clamp and steel wire rope, the electricity dynamic hoist engine and fixed pulley are installed on the wall of vertical ventilating shaft, and movable pulley is installed on door
On fan；Described steel wire rope one end is fixed on the reel of electrical hoist, its other end passes through movable pulley and fixed pulley and rope clamp
It is connected, the rope clamp is fixed on the flange seat of electrical hoist by axis pin.
Further, the steel door frame is formed by shaped steel and dowel welding, and four frames of steel door frame are welded with fluid sealant
Bar groove, the sealing joint strip are arranged in fluid sealant bar groove.The steel door frame is embedded in vertical shaft people's air defense wall, the sealing of setting
Adhesive tape can ensure the closed of door leaf and steel door frame.
Further, some travel switches and limited block, the travel switch and water are provided with the inside of the steel door frame
The electric-control system of flat airtight blast door is connected.The travel switch provides for the control of the electric-control system of horizontal protective sealed door
Signal, limited block provide safety assurance for the operation of horizontal protective sealed door.
Further, the sealed valve is manual and electric double-purpose double link sealed valve, and people can usually use electronic behaviour
Make sealed valve, manual hand manipulation can be changed into special circumstances, to realize the closed and clean ventilation to wave absorber.
Beneficial effect of the present invention：
A kind of horizontal protective sealed door provided by the invention, for the closure of subway ventilation road vertical shaft, its is rational in infrastructure, can produce
Raw following technique effect：
（1）With the mode of conventional safety equipment arranged orthogonal, the problem being horizontally mounted in ventilation shaft vertical shaft is solved, quickly
The effective protection airtight for realizing subway ventilation road；
（2）Compared with typical subway people's air defense ventilation section, shorten platform to the horizontal distance of air shaft, greatly save and account for
Ground area, avoids touching Systems of Red Line in Planning Based, reduces removal cost；
（3）The opening and closing of horizontal protective sealed door are safe and reliable, possess electric automatic control and manually two kinds of moulds of control
Formula, facilitates operating personnel's operation.
Brief description of the drawings
By the detailed description made in conjunction with the following drawings, above-mentioned advantage of the invention will be apparent and be easier reason
Solution, these attached drawings are simply schematical, are not intended to limit the present invention, wherein：
Fig. 1 is a kind of structure diagram of horizontal protective sealed door for the closure of subway ventilation road of the present invention；
Fig. 2 is the structure diagram of the blocking device of the present invention.
In attached drawing, the component representated by each label is as follows：
1. door leaf；2. steel door frame；3. hinge page；4. blocking device；41. electromagnet mounting base；42. towed electromagnet；43. compression
Spring；44. connecting rod；45. locking head；46. locking set；5. headstock gear；51. electrical hoist；52. fixed pulley；53. dynamic slide
Wheel；54. rope clamp；55. steel wire rope；6. wave absorber；7. sealed valve.
Embodiment
It is close to a kind of horizontal protective for the closure of subway ventilation road of the present invention with reference to specific embodiments and the drawings
Door is closed to be described in detail.
The embodiment recorded herein is specific embodiment of the invention, for illustrating the design of the present invention,
It is explanatory and exemplary, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also be based on the application claims and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include any obvious using making for the embodiment to recording herein
The technical solution of substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating the design of the present invention, it is schematically indicated the shape of each several part
And its correlation.Note that for the ease of clearly show the embodiment of the present invention each component structure, between each attached drawing
Do not drawn according to identical ratio.Identical reference marker is used to represent identical part.
The structure diagram of a kind of horizontal protective sealed door for the closure of subway ventilation road, as shown in Figure 1, its specific bag
Door leaf 1, steel door frame 2, hinge page 3 and blocking device 4 are included, the steel door frame 2 is horizontally fixed in wall, and door leaf 1 is connected by hinge page 3
It is connected on steel door frame 2；The blocking device 4 is arranged on steel door frame 2, its installation site and the obturator hernia phase set on door leaf 1
It is corresponding.
In the application, shown blocking device 4 is by electromagnet mounting base 41, towed electromagnet 42, compression spring 43, connection
46 composition of bar 44, locking head 45 and locking set, as shown in Figure 2；The electromagnet mounting base 41 is pacified with locking set 46 by bolt
On steel door frame 2, towed electromagnet 42 is installed in electromagnet mounting base 41 by bolt, and towed electromagnet 42 is with closing
Tapered end 45 is connected by connecting rod 44；The compression spring 43 is arranged on the outside of connecting rod 44, and 43 one end of compression spring is with leading
Draw the end flange contact of formula electromagnet 42, its other end is contacted with the end flange of locking head 45, and it is logical so to set purpose
The bounce of overcompression spring 43 promotes locking head 45 to stretch out；The locking head 45 covers 46 linear slides, locking head 45 along locking
Insertion is built in being bonded so as to fulfill door leaf 1 and steel door frame 2 in the obturator hernia of door leaf 1 after stretching.
The horizontal protective sealed door further includes wave absorber 6, it is installed on door leaf 1, and the wave absorber 6 uses glue
Pipe wave absorption.The quantity of the door leaf 1 is two pieces, it is formed by shaped steel and the weldering of panel group；The middle part of the door leaf 1 is provided with ventilation
Hole, the disposed at air vent in the outside of door leaf 1 are provided with wave absorber 6, and the disposed at air vent of the inner side of door leaf 1 is provided with sealed valve 7.Ventilation
The exterior installation sealed valve in hole, to realize the closed and clean ventilation to wave absorber, effective guarantee horizontal protective sealed door
Good operation.
The horizontal protective sealed door further includes headstock gear 5, it includes electrical hoist 51, fixed pulley 52, movable pulley
53rd, rope clamp 54 and steel wire rope 55, the electricity dynamic hoist engine 51 and fixed pulley 52 are installed on the wall of vertical ventilating shaft, movable pulley 53
On door leaf 1；Described 55 one end of steel wire rope is fixed on the reel of electrical hoist 51, its other end passes through movable pulley 53
And fixed pulley 52 is connected with rope clamp 54, the rope clamp 54 is fixed on by axis pin on the flange seat of electrical hoist 51.
The steel door frame 2 is formed by shaped steel and dowel welding, and four frames of steel door frame 2 are welded with fluid sealant bar groove, institute
Sealing joint strip is stated to be arranged in fluid sealant bar groove.The steel door frame 2 is embedded in vertical shaft people's air defense wall, and the sealing joint strip of setting can
To ensure the closed of door leaf 1 and steel door frame 2.
The inner side of the steel door frame 2 is provided with some travel switches and limited block, and the travel switch and horizontal protective are close
The electric-control system for closing door is connected.The travel switch provides signal for the control of the electric-control system of horizontal protective sealed door, limit
Position block provides safety assurance for the operation of horizontal protective sealed door.
The sealed valve 7 is manual and electric double-purpose double link sealed valve, and people can usually use electric operating airtight valve
Door 7, can be changed into manual hand manipulation in special circumstances, to realize the closed and clean ventilation to wave absorber.
In the application, horizontal positioned gate-type safeguard is installed in the vertical shaft suitable position of ventilating duct.In order to meet to erect
The installation of the well confined space needs, and horizontal positioned airtight blast door is using running scheme is rotated up, and power usually is using electricity
Dynamic operation, can be changed into manual hand manipulation in special circumstances.
In the embodiment shown in fig. 1, the headstock gear 5 is rotated for hanging door leaf 1 around hinge page 3, so that door leaf 1
It is bonded with steel door frame 2 or remote, is turned on and off with realizing；The wave absorber 6 uses sebific duct wave absorption, and wartime can disappear filter 90%
Shock wave above；The sealed valve 7 uses manual and electric double-purpose double link sealed valve, realizes wartime to 6 hole of wave absorber
It is closed.
Usually, door leaf 1 is in opening under ventilation state, i.e. door leaf 1 and steel door frame 2 is near normal state, slightly
Introversion is leaned on from Beijing South Maxpower Technology Co. Ltd's automatic door-closing in order to door leaf 1.The wartime electric control system of horizontal protective sealed door is connected to door close commands
After send door signal, start towed electromagnet 42 first and shrink locking head 45, then start electrical hoist 51 and transfer door
Fan 1 is then turned off towed electromagnet 42, promotes locking head 45 to stretch out simultaneously by the bounce of compression spring 43 to horizontal level
It is inserted into the obturator hernia on door leaf 1.
Door leaf 1 is in shutdown state and when ventilating duct is in clean ventilation pattern, need to be operated by electric control system close
Valve closing door 7 is in ventilation state；When ventilating duct is by clean ventilation pattern switching to isolated ventilation pattern, pass through Electronic control system
System operates sealed valve 7 to closed mode.
Compared with the prior art the shortcomings that and deficiency, it is close provided by the present invention for the horizontal protective of subway ventilation road closure
Door is closed, its is rational in infrastructure, can fast and effectively complete the protection airtight in subway ventilation road, significantly reduces the protection of subway ventilation road
The area of section, effectively reduces building cost.
The present invention is not limited to the above-described embodiments, anyone can draw other various forms under the enlightenment of the present invention
Product, it is every that there is technical side identical or similar to the present application however, make any change in its shape or structure
Case, is within the scope of the present invention.
Claims (6)
1. a kind of horizontal protective sealed door for the closure of subway ventilation road, including door leaf（1）, steel door frame（2）, hinge page（3）And
Blocking device（4）, the steel door frame（2）It is horizontally fixed in wall, door leaf（1）Pass through hinge page（3）It is connected to steel door frame（2）
On；The blocking device（4）It is arranged on steel door frame（2）On, its installation site and door leaf（1）The obturator hernia of upper setting is corresponding；
It is characterized in that, blocking device（4）By electromagnet mounting base（41）, towed electromagnet（42）, compression spring（43）, connecting rod
（44）, locking head（45）And locking set（46）Composition；The electromagnet mounting base（41）With locking set（46）Installed by bolt
In steel door frame（2）On, towed electromagnet（42）Electromagnet mounting base is installed on by bolt（41）On, towed electromagnet
（42）With locking head（45）Pass through connecting rod（44）It is connected；The compression spring（43）It is arranged on connecting rod（44）Outside, pressure
Contracting spring（43）One end and towed electromagnet（42）End flange contact, its other end and locking head（45）End flange
Contact；The horizontal protective sealed door further includes wave absorber（6）, it is installed on door leaf（1）On, the wave absorber（6）Adopt
With sebific duct wave absorption.
2. horizontal protective sealed door according to claim 1, it is characterised in that the door leaf（1）Quantity be two pieces, its by
Shaped steel and the weldering of panel group form；The door leaf（1）Middle part be provided with ventilation hole, door leaf（1）The disposed at air vent in outside is provided with
Wave absorber（6）, door leaf（1）The disposed at air vent of inner side is provided with sealed valve（7）.
3. horizontal protective sealed door according to claim 1, it is characterised in that the horizontal protective sealed door further includes keying
Device（5）, it includes electrical hoist（51）, fixed pulley（52）, movable pulley（53）, rope clamp（54）And steel wire rope（55）, electric institute
State hoist engine（51）And fixed pulley（52）On the wall of vertical ventilating shaft, movable pulley（53）Installed in door leaf（1）On；Institute
State steel wire rope（55）One end is fixed on electrical hoist（51）Reel on, its other end passes through movable pulley（53）And fixed pulley
（52）With rope clamp（54）It is connected, the rope clamp（54）Electrical hoist is fixed on by axis pin（51）Flange seat on.
4. horizontal protective sealed door according to claim 1, it is characterised in that the steel door frame（2）Spelled by shaped steel and dowel
Weldering forms, steel door frame（2）Four frames be welded with fluid sealant bar groove, the sealing joint strip is arranged in fluid sealant bar groove.
5. horizontal protective sealed door according to claim 4, it is characterised in that the steel door frame（2）If inner side be provided with
Dry travel switch and limited block, the travel switch are connected with the electric-control system of horizontal protective sealed door.
6. horizontal protective sealed door according to claim 2, it is characterised in that the sealed valve（7）It is double for manual and electric double-purpose
Connecting rod sealed valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274003.4A CN108005720B (en) | 2017-12-06 | 2017-12-06 | A kind of horizontal protective sealed door blocked for subway ventilation road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274003.4A CN108005720B (en) | 2017-12-06 | 2017-12-06 | A kind of horizontal protective sealed door blocked for subway ventilation road |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005720A true CN108005720A (en) | 2018-05-08 |
| CN108005720B CN108005720B (en) | 2019-10-29 |
Family
ID=62056831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274003.4A Active CN108005720B (en) | 2017-12-06 | 2017-12-06 | A kind of horizontal protective sealed door blocked for subway ventilation road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005720B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802969A (en) * | 2021-08-26 | 2021-12-17 | 广州地铁设计研究院股份有限公司 | Temporary flood-proof protective airtight door for ventilation of ventilation area and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2590819Y (en) * | 2003-03-14 | 2003-12-10 | 第二炮兵工程设计研究院 | Protection closing device for subway civil air defence ventilating system |
| DE102006012092A1 (en) * | 2005-03-14 | 2006-09-21 | Hodapp Gmbh & Co. Kg | Fire and smoke-proof door for closing door opening in tunnel section, has two door blades made of fire-proof material, connected pivotedly with door case, and aligned parallel to escape and rescue directions in opened position |
| CN201218034Y (en) * | 2008-06-30 | 2009-04-08 | 上海市民防监督管理处 | Protection airtight door used for civil air defense engineering |
| CN201705045U (en) * | 2010-06-25 | 2011-01-12 | 江苏驰翰科技有限公司 | Implanted remote controlled combination lock of wheel motor |
| CN202039742U (en) * | 2009-08-27 | 2011-11-16 | 中国建筑标准设计研究院 | Double-leaf protective sealed partition door in power-receiving subway section of contact rail |
| CN103266839A (en) * | 2013-05-29 | 2013-08-28 | 中国人民解放军总参谋部工程兵第四设计研究院 | Rail transit cleaning-type ventilation protective air-tight door |
| CN205172635U (en) * | 2015-11-27 | 2016-04-20 | 枣庄和顺达机电设备有限公司 | Shaft is from compound explosion vent |
-
2017
- 2017-12-06 CN CN201711274003.4A patent/CN108005720B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2590819Y (en) * | 2003-03-14 | 2003-12-10 | 第二炮兵工程设计研究院 | Protection closing device for subway civil air defence ventilating system |
| DE102006012092A1 (en) * | 2005-03-14 | 2006-09-21 | Hodapp Gmbh & Co. Kg | Fire and smoke-proof door for closing door opening in tunnel section, has two door blades made of fire-proof material, connected pivotedly with door case, and aligned parallel to escape and rescue directions in opened position |
| CN201218034Y (en) * | 2008-06-30 | 2009-04-08 | 上海市民防监督管理处 | Protection airtight door used for civil air defense engineering |
| CN202039742U (en) * | 2009-08-27 | 2011-11-16 | 中国建筑标准设计研究院 | Double-leaf protective sealed partition door in power-receiving subway section of contact rail |
| CN201705045U (en) * | 2010-06-25 | 2011-01-12 | 江苏驰翰科技有限公司 | Implanted remote controlled combination lock of wheel motor |
| CN103266839A (en) * | 2013-05-29 | 2013-08-28 | 中国人民解放军总参谋部工程兵第四设计研究院 | Rail transit cleaning-type ventilation protective air-tight door |
| CN205172635U (en) * | 2015-11-27 | 2016-04-20 | 枣庄和顺达机电设备有限公司 | Shaft is from compound explosion vent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802969A (en) * | 2021-08-26 | 2021-12-17 | 广州地铁设计研究院股份有限公司 | Temporary flood-proof protective airtight door for ventilation of ventilation area and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005720B (en) | 2019-10-29 |
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