CN109209187A - A kind of Subway Tunnel service channel double damping fire resistant doorsets - Google Patents
A kind of Subway Tunnel service channel double damping fire resistant doorsets Download PDFInfo
- Publication number
- CN109209187A CN109209187A CN201710540965.3A CN201710540965A CN109209187A CN 109209187 A CN109209187 A CN 109209187A CN 201710540965 A CN201710540965 A CN 201710540965A CN 109209187 A CN109209187 A CN 109209187A
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- Prior art keywords
- door
- fire resistant
- resistant doorsets
- interior doorframe
- service channel
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- 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
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 38
- 238000013016 damping Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000007937 lozenge Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229920003266 Leaf® Polymers 0.000 description 28
- 238000010276 construction Methods 0.000 description 6
- 238000005381 potential energy Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 241000131853 Solifugae Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000037433 frameshift Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
- E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
- E05Y2900/134—Fire doors
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
Abstract
The present invention discloses a kind of Subway Tunnel service channel double damping fire resistant doorsets, including exterior door frame, interior doorframe, central axis, spring-damper, fire resistant flexible it is soft connect, closed gasket of preventing fires, door leaf, 3 points of locking handspike escape locks, door-hinge, door closer and door handle, be equipped with interior doorframe and door leaf inside the exterior door frame；The side of the exterior door frame is uniformly distributed equipped with multiple spring-dampers, and the door leaf is connect with the central axis in the middle part of interior doorframe by door-hinge；Multiple magnet are symmetrically arranged with inside the upper and lower frames body of the exterior door frame and the interior doorframe；The two sides of the door leaf are centrosymmetric centered on the central point of central axis is respectively equipped with 3 points of locking handspike escape locks, door handle and door closer；The top of 3 points of lockings handspike escape lock is equipped with door closer.The present invention overcomes the shortcomings of that existing fire resistant doorsets bear repeatedly tunnel wind pressure in running tunnel and deformation is caused even to fall off, and it is horizontal to improve safety of subway operation.
Description
Technical field
The invention belongs to Subway Tunnel service channel fire resistant doorsets technical field, in particular to a kind of Subway Tunnel service channel
Double damping fire resistant doorsets are particularly suitable for service channel between two single track line tunnels of urban track traffic, can satisfy section
Tunnel fire-fighting evacuation function, and can prevent from deforming and dropping off in the case where tunnel wind acts on；Meanwhile being also applied for mountain tunnel, seabed
Tunnel, municipal highway traffic tunnel etc. have fire prevention, closed, fire-fighting evacuation function and the occasion for deforming the hidden danger that falls off.
Background technique
Currently, well known Metro Connection Passage fire resistant doorsets are by filling pair in doorframe, door leaf skeleton, door skin and door leaf
The nontoxic fire-proof heat-insulating material of human body, and it is equipped with fire prevention hardware and other accessories composition, there is certain fire protecting performance.When
For train when fire occurs for running tunnel and can not march to front station, passenger is by, in tunnel, utilizing two under compartment
Service channel between running tunnel evacuates passengers to another running tunnel, and fire resistant doorsets have evacuation passenger and are isolated
Effect between flame range.But piston wind scorpion when due to train operation, running tunnel wind pressure are anti-with the operation state of train
Multiple variation, Piston Action Wind is to service channel fire resistant doorsets repeated stock, and over time, section service channel fire resistant doorsets will deform even
It falls off.If falling into running tunnel, gently if cause section to power off, it is heavy then cause train derailing cause considerable safety liability accident.
On June 19th, 2011, the new palace station of subway to Community West Bridge station service channel fire resistant doorsets deformation fall off, and cause three rails short to cable is walked
Road has a power failure, and the subway height northern station rice Dian Qiao is caused to stop transport between Community West Bridge station.Driver's discovery parking in time, causes section
Obstruction, idle time was up to 3 hours.
By literature search, it there is no such fire resistant doorsets both at home and abroad.
Summary of the invention
The present invention for the technical problems in the prior art, provides a kind of Subway Tunnel service channel double damping fire prevention
Door can overcome the shortcomings of that existing fire resistant doorsets bear repeatedly tunnel wind pressure in running tunnel and deformation is caused even to fall off, improve subway
Operation security is horizontal.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of Subway Tunnel service channel double damping
Fire resistant doorsets, including exterior door frame, interior doorframe, central axis, spring-damper, magnet, fire resistant flexible it is soft connect, prevent fires closed gasket, door
Fan, 3 points of locking handspike escape locks, door-hinge, door closer, door handle, built-in fitting, wall and angle steel；
Interior doorframe and door leaf are equipped with inside the exterior door frame；The side of the exterior door frame is uniformly distributed to be hindered equipped with multiple springs
Buddhist nun's device, the interior doorframe are embedded in exterior door frame by spring-damper；The door leaf passes through with the central axis in the middle part of interior doorframe
Door-hinge connection；Multiple magnet are symmetrically arranged with inside the upper and lower frames body of the exterior door frame and the interior doorframe；The two of the door leaf
Side is centrosymmetric centered on the central point of central axis is respectively equipped with 3 points of locking handspike escape locks, door handle and door closer；
3 points of lockings handspike escape lock is located in the middle part of one end of one side external surface of door leaf, and the door handle is located at outside door leaf the same side
The other end on surface；The top of 3 points of lockings handspike escape lock is equipped with door closer.
It is sealed preferably, the gap between exterior door frame and interior doorframe is equipped with soft connect of fire resistant flexible, fire resistant flexible is soft
Connecing can not only realize that flue gas is isolated, but also can realize being flexible coupling between interior doorframe, exterior door frame.
Preferably, interior doorframe is totally-enclosed wedge structure, improves fire prevention airtightness and reliability is opened in deformation.
Preferably, the junction of door leaf and interior doorframe is lozenges and the interior closed gasket of fire prevention that is lined with is sealed.
Preferably, the outside of exterior door frame is equipped with wall, in wall in be embedded with built-in fitting.
Preferably, the structure reinforcing bars in built-in fitting and wall weld, built-in fitting is laid with angle steel along wall two sides and upside；
Whole door body is welded on wall.
Preferably, central axis plays support segmentation in doorframe.
Preferably, a doorframe can be realized, two door leafs, the function that different directions are opened can be according to use occasion
Difference, by the selectivity of central axis using a frame one, a frame two is realized, can also realize two open in the same direction, two not
The combinations such as equidirectional unlatching.
Compared with prior art, the present invention has the beneficial effects that the configuration of the present invention is simple, components are few, construct
It is easy for installation, structural strength is high, resistance to pressure is good；Solving existing fire resistant doorsets receiving, tunnel wind pressure causes deformation or even falls off repeatedly
Deficiency, under the conditions of tunnel wind pressure complicated and changeable play resistance to pressure it is good, the high advantage of structural strength, combine fire-fighting dredge
Scattered functional requirement greatly improves safety of subway operation level, and integral type produces, and industrialization promotion prospect is very wide.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is top view of the invention；
Fig. 3 is double damping system schematic of the invention；
Fig. 4 is structure built-in fitting schematic diagram of the invention；
Fig. 5 is stereoscopic schematic diagram of the invention.
1- exterior door frame in figure, doorframe in 2-, 3- central axis, 4- spring-damper, 5- magnet, 6- fire resistant flexible is soft to be connect, 7-
It prevents fires closed gasket, 8- door leaf, 3 points of locking handspike escape locks of 9-, 10- door-hinge, 11- door closer, 12- door handle, 13- is pre-buried
Part, 14- wall, 15- angle steel.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, in the following with reference to the drawings and specific embodiments
It elaborates to the present invention.
Embodiment of the invention discloses a kind of Subway Tunnel service channel double damping fire resistant doorsets, as shown in the figure comprising
Exterior door frame 1, interior doorframe 2, central axis 3, spring-damper 4, magnet 5, fire resistant flexible be soft connect 6, the closed gasket 7 of fire prevention, door leaf 8,
3 points of locking handspike escape locks 9, door-hinge 10, door closer 11, door handle 12, built-in fitting 13, wall 14 and angle steel 15；
Interior doorframe 2 and door leaf 8 are equipped with inside exterior door frame 1；The side of exterior door frame 1 is uniformly distributed equipped with multiple spring-dampers
4, interior doorframe 2 is embedded in exterior door frame 1 by spring-damper 4；The central axis 3 at 2 middle part of door leaf 8 and interior doorframe passes through door-hinge 10
Connection；Multiple magnet 5 are symmetrically arranged with inside the upper and lower frames body of exterior door frame 1 and interior doorframe 2；Two side external surfaces of door leaf 8 are in
It is centrosymmetric centered on the central point of axis body 3 and is respectively equipped with 3 points of locking handspike escape locks 9, door handle 12 and door closer 11；
3 points of locking handspike escape locks 9 are located in the middle part of one end of 8 one side external surface of door leaf, and door handle 12 is located at 8 the same side appearance of door leaf
The other end in face；The top of 3 points of locking handspike escape locks 9 is equipped with door closer 11.
In the present embodiment, gap between exterior door frame 1 and interior doorframe 2 is equipped with that fire resistant flexible is soft to be connect 6 and be sealed, and flexibility is anti-
Fire is soft, which to connect 6, can not only realize that flue gas was isolated, but also can realize being flexible coupling between interior doorframe, exterior door frame.
In the present embodiment, interior doorframe 2 is totally-enclosed wedge structure, improves fire prevention airtightness and reliability is opened in deformation.
In the present embodiment, the junction of door leaf 8 and interior doorframe 2 is lozenges and the interior closed gasket 7 of fire prevention that is lined with carries out
Sealing.
, it can be achieved that a doorframe, two door leafs, the function that different directions are opened can be according to use occasion in the present embodiment
Difference, by the selectivity of central axis using a frame one, a frame two is realized, can also realize two open in the same direction, two
The combinations such as different directions unlatching.
In the present embodiment, the outside of exterior door frame 1 is equipped with wall, in wall in be embedded with built-in fitting 13.
In the present embodiment, the structure reinforcing bars in built-in fitting 13 and wall 14 are welded, and built-in fitting 13 is along 14 two sides of wall and upper
Side is laid with angle steel 15；Whole door body is welded on wall.
In the present embodiment, central axis 3 plays support segmentation in doorframe.
In the present embodiment, construction technology uses steel construction prefabricated construction method, door leaf entirety prefabrication, and transport to scene is pacified
Dress, the workload at the scene of reducing shorten the site operation period in tunnel.
In the present embodiment, door leaf uses 2mm thick steel plate, embeds flame-proof thermal insulation material.
In the present embodiment, to ensure that door leaf in the case where closing, is not blown and influenced open door body under Piston Action Wind effect
The flexibility of unlatching, door body other side setting door handle is in parallel with 3 points of locking push rod escape locks, realizes and opens from the door other side
The function of door body.Door closer is connect by exterior door frame with door leaf, realizes the function that fire resistant doorsets are closed automatically.
Interior doorframe and exterior door frame embed magnet respectively, and exterior door frame side is uniformly distributed equipped with multiple spring-dampers, inside door
Frame is embedded in exterior door frame by spring-damper, to form " magnetic and elasticity " double damping system, being conducive to of system
Repeated stock of the Piston Action Wind to fire resistant doorsets is solved, by the temporary impact of a part of piston wind scorpion, passes through the " magnetic of inside and outside doorframe
And elasticity " double damping system, extend working time of collision, converts " magnetic and elasticity " potential energy for temporary impact and eliminate.
The operating condition of inside and outside doorframe " magnetic and elasticity " double damping system: train is run in tunnel, door leaf and inside door
Frame is in the lock state, door leaf side by Piston Action Wind act on be pressurized, Piston Action Wind generate instantaneous kinetic energy under the influence of, door leaf and
Interior doorframe is whole mobile towards the other side.On the one hand, elastic damper is pressurized, and converts elastic potential energy for a part of kinetic energy；Separately
On the one hand, since door leaf and interior doorframe are whole mobile to the other side, magnet and the magnet phase of the exterior door frame other side in interior doorframe
Mutually close, since magnetic pole at the same level is mutually exclusive, door leaf and inside door frame shift to move and be obstructed；In the dual work of elastic potential energy and magnetic potential energy
Under, door body reaches certain position and starts to return, and converts by potential energy repeatedly, finally the instantaneous kinetic energy of Piston Action Wind all disappears
It removes.
The present invention is innovated on the basis of the design of original fire resistant doorsets, construction technology process, is equipped in wall pre-buried
Part, wall periphery are provided with angle steel, improve the intensity of doorframe and wall connecting.Using inside and outside doorframe nesting composition " it is magnetic and
Elasticity " double damping system can extend working time of collision by " magnetic and elasticity " double damping system of inside and outside doorframe, will
Instantaneous kinetic energy is converted into " magnetic and elasticity " potential energy and eliminates, and improves the Wind-Pressure Resistance ability of door body；Interior doorframe is totally-enclosed wedge shape
The wedge-shaped faying face of structure, interior doorframe and door leaf, the closed gasket of liner fire prevention had not only improved airtightness but also had improved door body deformation
Open reliability；The push rod escape lock of fire resistant doorsets and the technical standard of door closer correspondingly increase, and continuously open the service life with reply and want
Summation adverse circumstances requirement.When construction, it is prefabricated into an assembly using fire resistant doorsets, scene is directly loaded on door opening, improves
The precision and in-site installation precision of each component connection of fire resistant doorsets, shorten construction period.
The present invention is in close state in normal conditions, meets two running tunnel isolations, closed, fire prevention demands.?
Under running tunnel fire, the present invention meets evacuating personnel demand, after closing, completely cuts off two running tunnels, prevents uplink and downlink tunnel
Between smoke blowing.
It is described the invention in detail above by embodiment, but the content is only exemplary implementation of the invention
Example, should not be considered as limiting the scope of the invention.
Claims (7)
1. a kind of Subway Tunnel service channel double damping fire resistant doorsets, which is characterized in that including exterior door frame, interior doorframe, central axis, bullet
Spring damper, magnet, fire resistant flexible be soft to be connect, closed gasket of preventing fires, door leaf, 3 points of locking handspike escape locks, door-hinge, door closer,
Door handle, built-in fitting, wall and angle steel；
Interior doorframe and door leaf are equipped with inside the exterior door frame；The side of the exterior door frame is uniformly distributed equipped with multiple spring dampings
Device, the interior doorframe are embedded in exterior door frame by spring-damper；Central axis in the middle part of the door leaf and interior doorframe passes through door
Axis connection；Multiple magnet are symmetrically arranged with inside the upper and lower frames body of the exterior door frame and the interior doorframe；The two sides of the door leaf
It is centrosymmetric centered on the central point of central axis and is respectively equipped with 3 points of locking handspike escape locks, door handle and door closer；Institute
It states 3 points of locking handspike escape locks to be located in the middle part of one end of one side external surface of door leaf, the door handle is located at door leaf the same side appearance
The other end in face；The top of 3 points of lockings handspike escape lock is equipped with door closer.
2. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 1, which is characterized in that the external door
Gap between frame and the interior doorframe is equipped with soft connect of fire resistant flexible and is sealed.
3. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 1, which is characterized in that the inside door
Frame is totally-enclosed wedge structure.
4. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 1, which is characterized in that the door leaf
Junction with interior doorframe is lozenges and the interior closed gasket of fire prevention that is lined with is sealed.
5. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 1, which is characterized in that the external door
The outside of frame is equipped with wall, in the wall in be embedded with built-in fitting.
6. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 5, which is characterized in that described pre-buried
Structure reinforcing bars in part and wall weld, and built-in fitting is laid with angle steel along wall two sides and upside；Whole door body is welded on angle steel.
7. a kind of Subway Tunnel service channel double damping fire resistant doorsets according to claim 1, which is characterized in that pass through centering
The selection of axis body uses the structure of a frame one or a frame two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540965.3A CN109209187A (en) | 2017-07-05 | 2017-07-05 | A kind of Subway Tunnel service channel double damping fire resistant doorsets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540965.3A CN109209187A (en) | 2017-07-05 | 2017-07-05 | A kind of Subway Tunnel service channel double damping fire resistant doorsets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209187A true CN109209187A (en) | 2019-01-15 |
Family
ID=64992048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710540965.3A Pending CN109209187A (en) | 2017-07-05 | 2017-07-05 | A kind of Subway Tunnel service channel double damping fire resistant doorsets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958468A (en) * | 2019-04-25 | 2019-07-02 | 浙江省交通规划设计研究院有限公司 | A kind of complementary ventilating system in twin tunnel and the anti-smoke blowing device of air duct fire |
| CN110409916A (en) * | 2019-08-13 | 2019-11-05 | 中国城市建设研究院有限公司 | A kind of mortise latch mechanism and its protective door for protective door |
| CN115217402A (en) * | 2022-07-29 | 2022-10-21 | 重庆五州门业开发有限公司 | Wind pressure resistant bidirectional escape door |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204691822U (en) * | 2015-05-06 | 2015-10-07 | 上海开顺海船特种门窗有限公司 | Subway Tunnel service channel door |
| CN106228908A (en) * | 2016-09-20 | 2016-12-14 | 吉首大学 | Large-scale damping electronic display with dehumidifier Yu temperature control air door |
| CN207004366U (en) * | 2017-07-05 | 2018-02-13 | 中铁第六勘察设计院集团有限公司 | A kind of Subway Tunnel service channel double damping fire resistant doorsets |
-
2017
- 2017-07-05 CN CN201710540965.3A patent/CN109209187A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204691822U (en) * | 2015-05-06 | 2015-10-07 | 上海开顺海船特种门窗有限公司 | Subway Tunnel service channel door |
| CN106228908A (en) * | 2016-09-20 | 2016-12-14 | 吉首大学 | Large-scale damping electronic display with dehumidifier Yu temperature control air door |
| CN207004366U (en) * | 2017-07-05 | 2018-02-13 | 中铁第六勘察设计院集团有限公司 | A kind of Subway Tunnel service channel double damping fire resistant doorsets |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958468A (en) * | 2019-04-25 | 2019-07-02 | 浙江省交通规划设计研究院有限公司 | A kind of complementary ventilating system in twin tunnel and the anti-smoke blowing device of air duct fire |
| CN110409916A (en) * | 2019-08-13 | 2019-11-05 | 中国城市建设研究院有限公司 | A kind of mortise latch mechanism and its protective door for protective door |
| CN110409916B (en) * | 2019-08-13 | 2024-04-12 | 中国城市建设研究院有限公司 | Mortise lock mechanism for protective door and protective door thereof |
| CN115217402A (en) * | 2022-07-29 | 2022-10-21 | 重庆五州门业开发有限公司 | Wind pressure resistant bidirectional escape door |
| CN115217402B (en) * | 2022-07-29 | 2024-04-26 | 重庆五州门业开发有限公司 | Wind pressure resistant two-way escape door |
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