CN207363704U - Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door - Google Patents
Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door Download PDFInfo
- Publication number
- CN207363704U CN207363704U CN201721276000.XU CN201721276000U CN207363704U CN 207363704 U CN207363704 U CN 207363704U CN 201721276000 U CN201721276000 U CN 201721276000U CN 207363704 U CN207363704 U CN 207363704U
- Authority
- CN
- China
- Prior art keywords
- door leaf
- preventive
- door
- vertical
- rail
- 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
Links
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door is the utility model is related to, belongs to protective airtight partition door technical field.Including door leaf, doorframe, hinge page, blocking mechanism, fluid pressure drive device and electric control system;Door leaf is connected by the doorframe of hinge page and side, and door leaf side is additionally provided with blocking mechanism, and door leaf is connected with fluid pressure drive device;Fluid pressure drive device is connected with electric control system;Fluid pressure drive device includes base, hydraulic cylinder, the first actuating arm, the second actuating arm, shaft and support arm.The utility model preferably solves requirement of the track traffic large space vertical rotary type sealed door to space and dead weight and hydraulic pressure door closing force, fluid pressure drive device is synchronously opened and closed, prevent the upper and lower driving force difference of sealed door to cause the generation of unbalance stress problem, there is preferable application prospect.
Description
Technical field
A kind of rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door is the utility model is related to, it is close to belong to protection
Close partition door technical field.
Background technology
Most of City Rail Transit System is all the passenger for delivering city commuting, and city in many instances
City's Rail Transit System can all be treated as the backbone of urban transportation.At war (such as World War II), subterranean railway is also
It can be used as factory or bomb shelter.The subway system of many countries (such as South Korea), war may be calculated by having in design
In design, so the either depth of railway, crowd's control aspect, the needs of daily traffic and national defence are all taken into account at the same time.
Subway engineering is usually City Underground Transportation arterial highway, wartime be urban civil air defense main passage for evacuation, material storage storehouse,
Personnel portion to be covered or personnel shelter.Usually each station, running tunnel are interconnected, and are open to traffic, and wartime can then separate
Into mutually independent protective unit.The division of protective unit be using underground station plus coupled running tunnel section as
One independent protective unit.Safeguard and internal unit are supporting into autonomous system in each protective unit, establish one's own system, wartime
Air defense, usually takes precautions against natural calamities.Require to have between each protective unit and can bear bidirectional load and the interval partition door with sealing function.It is close
Close partition door and allow for bearing certain pressure even shock wave of nuclear explosion, it is necessary to reach certain people's air defense grade.And
Obturation effect is very good, can prevent the leakage of malicious gas and water.
Often there is the situation that section is crossed in underground in urban subway, it is common practice to the both ends of section are crossed in section
Flood gate and partition door are individually set.This more wasteful resource of traditional method, in construction and installation and later maintenance
Difficulty is larger.In order to save civil engineering and equipment investment, accomplish to construct, install and use, is easy to maintain, " under underground railway waters
Running tunnel Flood gate be combined with people's air defense section protective airtight partition door " by be subway construction from now on trend.Subway area
Between protective airtight partition door as Flood gate handling characteristics be when river bed section running tunnel closed by Flood gate when destroying
Action is closed, no matter in general, being all anhydrous in running tunnel, therefore, which is typically at normally opened shape usually or wartime
State, although needing generally to have certain omen sign when closing Flood gate, when when turning off Flood gate with certain reaction
Between, but design is also required to make it have the function that operation is opened and closed under moving water state.So the designing scheme of partition door just seems
It is particularly important that.It must take into account its closing property, load people's air defense drag rank (Subjected To Biaxial Loading), door leaf upstream face stress hydraulic pressure
Situation, and relation of door leaf closing direction and water (flow) direction, that is, following current or adverse current etc..
The anti-Mi Men of flood is divided into rotatable two class of vertical lift type, hydraulic vertical by switch pattern, and wherein lift is divided into volume again
Raise machine formula and electric block type.Lift is similar with traditional water conservancy Flood gate, arranged on the position with two layer of space, usually puts
It is placed in station hall layer, when closing falls partition station layer tunnel.More city underground buried depth is shallower, and vertical lift type needs 7 up and down
~8 meters of space, difficult arrangement, the rotatable door of hydraulic vertical is devised for the situation.The Men Li, which is turned on, to be opened, for infer bus-bar or
Close the door against the current, need stronger shutdown driving mechanism.And meeting the requirement of tunnel space anxiety, hydraulic push rod mechanism needs to provide
The door closing force of 320KN.But for the rail tunnel of large space, vertical rotary type sealed door size used just needs to do
It is very big, but its dead weight increase is more at the same time, this just proposes hydraulic push rod mechanism the requirement of higher, and there has been no have at present
The solution of effect.
Utility model content
The utility model in order to solve subway large space hydraulic vertical it is rotatable it is imitative flood protective airtight partition door from it is great, need it is larger
The problem of hydraulic pressure door closing force, the utility model proposes a kind of rail rapid transit engineering hydraulic vertical rotary flood and preventive protection airtight
Door, effectively solves the problems, such as the closed partition of subway large space.
To achieve these goals, the utility model takes following technical solution:
Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door, including door leaf, doorframe, hinge page, blocking mechanism,
Fluid pressure drive device and electric control system;Wherein, the doorframe is arranged on rail tunnel inner wall, and the door leaf leads to
The doorframe for crossing hinge page and side connects, and the door leaf side is additionally provided with blocking mechanism, and the door leaf connects with fluid pressure drive device
Connect;Fluid pressure drive device is connected with electric control system;It is U-shaped that one is provided with the rail tunnel inner wall of the hinge page side
Groove, the fluid pressure drive device is provided with the U-shaped groove, and the fluid pressure drive device includes base, hydraulic cylinder, first
Actuating arm, the second actuating arm, shaft and support arm, the base are arranged among U-shaped groove, are connected with described turn thereon
Axis, is connected to multiple first actuating arms in the shaft from bottom to up, and each first actuating arm also passes through axis pin water
Flat to be rotatably connected to second actuating arm, the end of second actuating arm is also connected with being provided with a fixed plate, the fixation
Plate is fixedly installed on the door leaf centre position;Multiple support arms, the multiple branch are also socketed with the shaft from bottom to up
The other end of brace is fixedly installed with rail tunnel inner wall;Hydraulic cylinder is additionally provided with the base, the hydraulic cylinder
One end is rotatably dispose on the base, and one end of the first actuating arm described in the other end of the hydraulic cylinder and bottom, which rotates, to be connected
Connect;The hydraulic cylinder connects the electric control system.
Further, positioning buffer unit is additionally provided with the U-shaped groove, the positioning buffering after being opened for door leaf.
Further, the bottom of the doorframe is additionally provided with gutter flashboard.
Further, first actuating arm and the second actuating arm be horizontal parallel set three.
Further, the blocking mechanism includes retarder and multiple locking heads;The retarder is provided with housing, shell
Worm gear is provided with vivo, handwheel is sequentially connected by worm and wheel, and worm gear is connected with the leading screw being vertically arranged, above and below leading screw
Both ends are connected with vertical connecting rod A, and vertical connecting rod A is overlapped with the central lines of track of rail tunnel, are set on the vertical connecting rod A
Multiple articulation pieces are equipped with, articulation piece both sides pass sequentially through triangle pivoted arm respectively and one end of waling stripe is hinged, and the level is even
The other end of bar is fixedly connected with vertical connecting rod B, and the vertical connecting rod B is horizontally disposed with from top to bottom to be had in multiple connection latch receptacles
Locking head;Three rows that the waling stripe is arranged in parallel for upper, middle and lower or so, in the waling stripe at left and right sides of top
Between be also hinged with transfer link vertically, the transfer link vertically connects the locking head in latch receptacles;The water that lower part is set
Sealed beam elevating mechanism is also vertically arranged among flat connecting rod, the sealed beam elevating mechanism bottom is connected with sealed beam, described
Multiple locking heads are connected with sealed beam;The linear motion of the leading screw can pass through vertical connecting rod A, triangle pivoted arm, level
The linkage of connecting rod, vertical connecting rod B, transfer link, sealed beam elevating mechanism drives locking head to do linearly operating;Locking head is inserted into door
In the corresponding lockhole of frame;Also it is arranged with the vertical connecting rod A, waling stripe guide locating device provided;In the handwheel of blocking mechanism
The heart is additionally provided with gear, and gear is connected by chain with hydraulic motor, and hydraulic motor is connected with motor.
Further, 5 locking heads are set respectively at left and right sides of the door leaf, it is upper and lower that 2 and 3 locking heads are set respectively.
Further, 8 locking heads are set respectively at left and right sides of the door leaf, it is upper and lower that 4 locking heads are set respectively.
Further, the hinge page includes free bearing, loading arm, vertical shaft, door leaf free bearing, and vertical shaft, vertical shaft are provided with free bearing
Flap and door leaf free bearing are connected between door leaf, load backing plate, load backing plate and door leaf are additionally provided with the vertical shaft
Between be also connected with being provided with loading arm, the flap is socketed on vertical shaft.
Further, it is additionally provided with sealing strip between the door leaf and doorframe.
Further, the sealing strip is sponge rubber;The door leaf size is width × height=6000mm × 6500mm.
Relative to the prior art, the utility model has the advantages that:
The vertically rotary flood and preventive protective airtight partition door preferably solves track traffic large space vertical rotary type sealed door to sky
Between and dead weight and hydraulic pressure door closing force requirement so that fluid pressure drive device can be opened and closed synchronously, it is therefore prevented that sealed door
Upper and lower driving force difference causes the generation of unbalance stress problem, has preferable application prospect.
Brief description of the drawings:
Fig. 1 is the utility model rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door elevational schematic view;
Fig. 2 is the A-A profiles of Fig. 1;
Fig. 3 is the B-B profiles of Fig. 1.
Embodiment
The utility model is further described with reference to embodiment.
As shown in Figs. 1-3, a kind of rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door of the utility model,
Including door leaf 1, doorframe 2, hinge page 3, blocking mechanism, fluid pressure drive device and electric control system 4.Wherein, doorframe 1 is arranged at
On rail tunnel inner wall, 1 size of door leaf is width × height=6000mm × 6500mm, it passes through hinge page 3 and the doorframe 2 of side
Connection, 1 side of door leaf are additionally provided with blocking mechanism, and door leaf 1 is connected with fluid pressure drive device.Fluid pressure drive device and electrical control
System 4 connects.A U-shaped groove 5 is provided with the rail tunnel inner wall of 3 side of hinge page, hydraulic pressure is provided with U-shaped groove 5
Driving device and positioning buffer unit 13, the positioning buffering after being opened for door leaf 1.Fluid pressure drive device includes base 6, liquid
Cylinder pressure 7, the first actuating arm 8, the second actuating arm 9, shaft 10 and support arm 11.Base 6 is arranged among U-shaped groove 5, thereon
Shaft 10 is connected with, is connected to multiple first actuating arms 8 in shaft 10 from bottom to up.Each first actuating arm 8 also passes through
Axis pin, which horizontally rotates, is connected with the second actuating arm 9.First actuating arm 8 and the second actuating arm 9 are three that horizontal parallel is set
Bar.The end of second actuating arm 9 is also connected with being provided with a fixed plate 12.Fixed plate 12 is fixedly installed on 1 centre position of door leaf.Turn
Multiple support arms 11 are also socketed with axis 10 from bottom to up, the other end and the rail tunnel inner wall of multiple support arms 11 are fixed
Set.Hydraulic cylinder 7 is additionally provided with base 6, one end of hydraulic cylinder 7 is rotatably dispose on base 6, the other end of hydraulic cylinder 7 with
One end rotation connection of the first actuating arm of bottom 8.Hydraulic cylinder 7 connects electric control system 4.The bottom of doorframe 2 is additionally provided with row
Ditch flashboard 14.
Blocking mechanism includes retarder 15 and multiple locking heads 16;Retarder 15 is provided with housing, is provided with housing
Worm gear, handwheel 17 are sequentially connected by worm and wheel, and worm gear is connected with the leading screw 18 being vertically arranged, the upper and lower ends of leading screw 18
Vertical connecting rod A19 is connected with, vertical connecting rod A19 is overlapped with the central lines of track of rail tunnel, is set on vertical connecting rod A19
There are multiple articulation pieces 20,20 both sides of articulation piece pass sequentially through triangle pivoted arm 21 respectively and one end of waling stripe 22 is hinged, horizontal
The other end of connecting rod 22 is fixedly connected with vertical connecting rod B23, and vertical connecting rod B23 is horizontally disposed with from top to bottom multiple connection latch receptacles
Interior locking head 16.Three rows that waling stripe 22 is arranged in parallel for upper, middle and lower or so, the waling stripe 22 at left and right sides of top
Centre is also hinged with transfer link 24 vertically, and transfer link 24 vertically connects the locking head 16 in latch receptacles.The water that lower part is set
Sealed beam elevating mechanism 25 is also vertically arranged among flat connecting rod 22,25 bottom of sealed beam elevating mechanism is connected with sealed beam 26,
Multiple locking heads 16 are connected with sealed beam 26;The linear motion of leading screw 18 can pass through vertical connecting rod A19, triangle pivoted arm
21st, the linkage of waling stripe 22, vertical connecting rod B23, transfer link 24, sealed beam elevating mechanism 25 drives locking head 16 to do straight line
Action;Locking head 16 is inserted into 2 corresponding lockhole of doorframe;Guide-localization dress is also arranged with vertical connecting rod A19, waling stripe 22
Put 27.The left and right sides of door leaf 1 of the present embodiment sets 5 locking heads 16 respectively, it is upper and lower set respectively 2 and 3 locking heads 16 or
The left and right sides of person's door leaf 1 sets 8 locking heads 16 respectively, upper and lower to set 4 locking heads 16 respectively.
Hinge page 3 includes free bearing 28, loading arm 29, vertical shaft 30, door leaf free bearing 31, and vertical shaft 30, vertical shaft are provided with free bearing 31
Flap 32 and door leaf free bearing 31 are connected between 30 and door leaf 1, is additionally provided with load backing plate on vertical shaft 30, load backing plate with
It is also connected with being provided with loading arm 29 between door leaf 1, flap 32 is socketed on vertical shaft 30.
The handwheel center of blocking mechanism is additionally provided with gear, and gear is connected by chain with hydraulic motor 38, hydraulic motor
38 are connected (not shown) with motor.Motor drives hydraulic motor 38, and hydraulic motor 38 is driven by chain and gear drive
Blocking mechanism makes the fitting doorframe 2 of door leaf 1 realize flood protection airtight function.
Sealing strip 34 is additionally provided between the door leaf 1 and doorframe 2 of the utility model, sealing strip 34 is sponge rubber.
Embodiment above is only that the preferred embodiment of the utility model is described, not to the utility model
Scope be defined, on the premise of the spirit of the design of the utility model is not departed from, those of ordinary skill in the art are to this practicality
The various modifications and improvement that new technical solution is made, should all fall into the protection domain that the utility model claims book determines
It is interior.
Claims (10)
1. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door, it is characterised in that:Including door leaf (1), doorframe
(2), hinge page (3), blocking mechanism, fluid pressure drive device and electric control system (4);Wherein, the doorframe (2) is arranged at rail
On road traffic tunnel inner wall, the door leaf (1) is connected by hinge page (3) with the doorframe (2) of side, and door leaf (1) side is also
Blocking mechanism is provided with, the door leaf (1) is connected with fluid pressure drive device;Fluid pressure drive device connects with electric control system (4)
Connect;A U-shaped groove (5) is provided with the rail tunnel inner wall of hinge page (3) side, is set in the U-shaped groove (5)
There is the fluid pressure drive device, the fluid pressure drive device includes base (6), hydraulic cylinder (7), the first actuating arm (8), the second drive
Swing arm (9), shaft (10) and support arm (11), the base (6) are arranged among U-shaped groove (5), are connected with thereon described
Shaft (10), is connected to multiple first actuating arms (8) on the shaft (10) from bottom to up, each first actuating arm
(8) also horizontally rotated by axis pin and be connected with second actuating arm (9), the end of second actuating arm (9) is also connected with setting
A fixed plate (12) is equipped with, the fixed plate (12) is fixedly installed on the door leaf (1) centre position;On the shaft (10) from
Under it is supreme be also socketed with multiple support arms (11), the other end of the multiple support arm (11) is fixed with rail tunnel inner wall
Set;Hydraulic cylinder (7) is additionally provided with the base (6), one end of the hydraulic cylinder (7) is rotatably dispose in the base (6)
On, one end rotation connection of the first actuating arm (8) described in the other end of the hydraulic cylinder (7) and bottom;The hydraulic cylinder (7) is even
Connect the electric control system (4).
2. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
Positioning buffer unit (13) is additionally provided with the U-shaped groove (5), the positioning buffering after being opened for door leaf (1).
3. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
The bottom of the doorframe (2) is additionally provided with gutter flashboard (14).
4. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
First actuating arm (8) and the second actuating arm (9) are three that horizontal parallel is set.
5. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
The blocking mechanism includes retarder (15) and multiple locking heads (16);The retarder (15) is provided with housing, in housing
Worm gear is provided with, handwheel (17) is sequentially connected by worm and wheel, and worm gear is connected with the leading screw (18) being vertically arranged, leading screw
(18) upper and lower ends are connected with vertical connecting rod A (19), vertical connecting rod A (19) and the central lines of track weight of rail tunnel
Close, be provided with multiple articulation pieces (20) on the vertical connecting rod A (19), articulation piece (20) both sides pass sequentially through triangle pivoted arm respectively
(21) it is hinged with one end of waling stripe (22), the other end of the waling stripe (22) is fixedly connected with vertical connecting rod B (23), institute
State vertical connecting rod B (23) and be horizontally disposed with the locking head (16) having in multiple connection latch receptacles from top to bottom;The waling stripe
(22) three rows being arranged in parallel for upper, middle and lower or so, it is also vertical hinged among the waling stripe (22) at left and right sides of top
There is transfer link (24), the transfer link (24) vertically connects the locking head (16) in latch receptacles;The water that lower part is set
Sealed beam elevating mechanism (25) is also vertically arranged among flat connecting rod (22), sealed beam elevating mechanism (25) bottom is connected with
Sealed beam (26), is connected with multiple locking heads (16) on the sealed beam (26);The linear motion of the leading screw (18) can
Pass through vertical connecting rod A (19), triangle pivoted arm (21), waling stripe (22), vertical connecting rod B (23), transfer link (24), sealed beam
The linkage of elevating mechanism (25) drives locking head (16) to do linearly operating;In the corresponding lockhole of locking head (16) insertion doorframe (2);
Also it is arranged with guide locating device provided (27) on the vertical connecting rod A (19), waling stripe (22);The handwheel center of blocking mechanism is also
Gear is provided with, gear is connected by chain with hydraulic motor (38), and hydraulic motor (38) is connected with motor.
6. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 5, it is characterised in that:
5 locking heads (16) are set respectively at left and right sides of the door leaf (1), it is upper and lower that 2 and 3 locking heads (16) are set respectively.
7. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 5, it is characterised in that:
8 locking heads (16) are set respectively at left and right sides of the door leaf (1), it is upper and lower that 4 locking heads (16) are set respectively.
8. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
The hinge page (3) includes free bearing (28), loading arm (29), vertical shaft (30), door leaf free bearing (31), and door leaf free bearing is provided with (31)
Vertical shaft (30), is connected with flap (32) and door leaf free bearing (31) between vertical shaft (30) and door leaf (1), on the vertical shaft (30)
Load backing plate is additionally provided with, is also connected with being provided with loading arm (29), flap (32) set between load backing plate and door leaf (1)
It is connected on vertical shaft (30).
9. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 1, it is characterised in that:
Sealing strip (34) is additionally provided between the door leaf (1) and doorframe (2).
10. rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door according to claim 9, its feature exist
In:The sealing strip (34) is sponge rubber;The dimension of opening of the door leaf (1) is width × height=6000mm × 6500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276000.XU CN207363704U (en) | 2017-09-30 | 2017-09-30 | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276000.XU CN207363704U (en) | 2017-09-30 | 2017-09-30 | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363704U true CN207363704U (en) | 2018-05-15 |
Family
ID=62347183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276000.XU Active CN207363704U (en) | 2017-09-30 | 2017-09-30 | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476823A (en) * | 2017-09-30 | 2017-12-15 | 广州地铁设计研究院有限公司 | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door |
-
2017
- 2017-09-30 CN CN201721276000.XU patent/CN207363704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476823A (en) * | 2017-09-30 | 2017-12-15 | 广州地铁设计研究院有限公司 | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107476823A (en) | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door | |
| CN101666242B (en) | Hydraulic vertically rotary airtight flood and preventive partition door in metro running | |
| CN103266838A (en) | Threshold-free civil defense door of doorway | |
| CN109505493A (en) | Double-leaf protective sealed partition door suitable for Subway Tunnel and discrepancy section line | |
| CN207212409U (en) | The manual vertical rotary type protective airtight partition door of rail rapid transit engineering | |
| CN202467522U (en) | Slide runner type steel structure protective sealed horizontal plugging plate | |
| CN108442338A (en) | The arrangement of Hydropower Station Underground formula workshop machine set outlet gate | |
| CN103437327A (en) | Intermediately-hinged upturning steel gate | |
| CN117703234A (en) | Threshold-free flood-proof protective airtight door for urban underground space entrance | |
| CN207363704U (en) | Rail rapid transit engineering hydraulic vertical rotary flood and preventive airtight blast door | |
| CN221220263U (en) | Threshold-free flood-proof protective airtight door for urban underground space entrance | |
| CN107559043A (en) | The manual vertical rotary type protective airtight partition door of rail rapid transit engineering | |
| CN104454804B (en) | It is opened flat vertical rotary type protection airtight to hold concurrently the hydraulic system of Flood gate | |
| CN2386162Y (en) | Protective closed partion door for subway and civil air defence | |
| CN219387751U (en) | A flashlight double control protection equipment that floods for subway access & exit | |
| CN104358239A (en) | Hydraulic flat opening vertical rotating type protection sealing flood gate | |
| CN108005720A (en) | A kind of horizontal protective sealed door for the closure of subway ventilation road | |
| CN215633142U (en) | Emergency disaster prevention device for underground cavern of large hydropower station | |
| CN203248025U (en) | Threshold-free civil air defense door for entrance and exit | |
| CN205296096U (en) | High strength hydraulic pressure dam | |
| CN206801401U (en) | A kind of pair is opened flood-protection door sealing structure | |
| CN209429908U (en) | A retractable vertical lifting floodproof door | |
| CN2921256Y (en) | Vertical rotary falling antisubmerging protective closed door | |
| CN2750042Y (en) | Full automatic waterproof gate | |
| CN206859390U (en) | A kind of bottom-open type rotation weir gate of hydraulic automatism control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 12A1320, Huabao Building, Haidian District, Beijing 100036 Patentee after: Guangzhou Metro Design and Research Institute Co., Ltd. Address before: Room 12A1320, Huabao Building, Haidian District, Beijing 100036 Patentee before: Guangzhou Metro Design & Research Institute Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |