CN106761242A - Ship is opened and closed watertight door with fast - Google Patents
Ship is opened and closed watertight door with fast Download PDFInfo
- Publication number
- CN106761242A CN106761242A CN201611173090.XA CN201611173090A CN106761242A CN 106761242 A CN106761242 A CN 106761242A CN 201611173090 A CN201611173090 A CN 201611173090A CN 106761242 A CN106761242 A CN 106761242A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- doorframe
- door
- door leaf
- ship
- 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.)
- Pending
Links
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
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/24—Arrangements of watertight doors in bulkheads
- B63B43/32—Arrangements of watertight doors in bulkheads of non-sliding type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
- E05C19/12—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis
-
- 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
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The present invention relates to a kind of naval vessel component, the ship specifically on ship bulkhead is opened and closed watertight door with fast.It includes doorframe and door leaf, and doorframe is hinged with one of door leaf vertical corresponding sides, there is retaining mechanism between doorframe and door leaf, in sealing shape cooperation between the surrounding of door leaf and doorframe.Being characterized in the surrounding of the door leaf medial surface has projection, and reinforcing plate is connected with projection.Lighter weight of the fast opening and closing watertight door, opening and closing it is convenient, it is necessary to material it is few, manufacturing cost is relatively low.
Description
Technical field
The present invention relates to a kind of naval vessel component, the ship specifically on ship bulkhead is opened and closed watertight door with fast.
Background technology
At present, the fast opening and closing watertight door installed on ship bulkhead is traditional watertight door.Its structure mainly includes door
One group of corresponding sides of frame and door leaf, doorframe and door leaf are hinged, the correspondence of another group of relative doorframe of hinge side and door leaf
There is retaining mechanism between side, have sealing strip between the surrounding and doorframe of door leaf medial surface.For the sake of security, watertight door is needed preferably
Bearing capacity, traditional way is to ensure bearing strength using thicker door leaf.However, thicker door leaf causes watertight
The heavier mass of door, opening and closing are inconvenient, and the material for needing is more, and manufacturing cost is higher.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of fast opening and closing watertight door of ship, and this is opened and closed the matter of watertight door soon
Amount is relatively light, opening and closing it is convenient, it is necessary to material it is few, manufacturing cost is relatively low.
To solve the above problems, there is provided following technical scheme：
Ship of the invention includes doorframe and door leaf with fast opening and closing watertight door, and doorframe is hinged on one of door leaf vertical corresponding sides
Together, there is retaining mechanism between doorframe and door leaf, coordinate in sealing shape between the surrounding of door leaf and doorframe.It is characterized in the door leaf
The surrounding of side has projection, and reinforcing plate is connected with projection.
Wherein, the reinforcing plate is in strip, and its width is less than the raised width, the plate face and door leaf of reinforcing plate
Plate face it is perpendicular, a side long of reinforcing plate is connected with the medial surface of door leaf, oriented its side in another side long of reinforcing plate
In 90 ° of kinks of bending, the corresponding position of two short sides of reinforcing plate respectively with circumferential reinforcing plate medial surface links together.
It is that the retaining mechanism is uniform with the surrounding of door leaf along doorframe to further improvement of the present invention scheme.The locking
The large shaft sleeve on doorframe and the spacing wedge on door leaf are contained in mechanism, have through hole on the corresponding doorframe of the large shaft sleeve,
The center line of through hole is perpendicular with the plate face of door leaf, and the large shaft sleeve is fixed in through hole, and large shaft sleeve two ends respectively from logical
The two ends in hole are stretched out.The two ends for having rotating shaft, rotating shaft in the large shaft sleeve are stretched out from the two ends of large shaft sleeve respectively, rotating shaft and large shaft sleeve
Between in go to sealing shape coordinate.One section of the rotating shaft on the outside of doorframe has locking clasp, under the state of closing the door, rotating shaft, lock
Tight clasp is located at spacing wedge outside.So improved advantage is almost to set onto doorframe whole parts of retaining mechanism, from
And the weight of the door leaf for further mitigating, facilitate unlatching.
Further improvement project to inventing is that the rotating shaft one end on the inside of the doorframe is fixed with linkage set, and linkage set connects
Connecting rod is connected to, there is swing handle on the doorframe, connecting rod is connected away from one end of linkage set with the swing handle of doorframe.So
Improved advantage be by rotating swing handle by drive the motion of all retaining mechanisms, facilitate open and close door.And, will turn
Dynamic handle is placed on doorframe the weight that can further mitigate door leaf.In addition, swing handle is set onto doorframe, can avoid turning
The problem of interference foreign object when dynamic handle is moved with door leaf.
Coordinate in slip shape between the axial direction for further improvement project of the invention being the locking clasp and rotating shaft, lock
Coordinate in fixing shape between tight clasp and the circumference of rotating shaft.The outer end of the rotating shaft is connected with screw mandrel with one heart, useful on screw mandrel
In the nut for pushing down locking clasp.Have between the inner of the linkage set and large shaft sleeve in the rotating shaft in spacing, and the spacing and be cased with
Annular gasket, the first little axle sleeve and the second little axle sleeve are cased with the rotating shaft between annular gasket and locking clasp, the first little axle sleeve with
Annular gasket offsets, the second little axle sleeve with locking clasp offset, the first little axle sleeve is fixedly connected with large shaft sleeve, the second little axle sleeve with it is big
In shape cooperation is slided between axle sleeve and rotating shaft, there is spring between the first little axle sleeve and the second little axle sleeve.So improved advantage is to pass through
Rotating nut can adjust position of the locking clasp in rotating shaft, the compression degree between convenient control door leaf and doorframe.
In such scheme, first little axle sleeve with have the radial direction pin-and-hole and radial direction screw that are connected on large shaft sleeve respectively,
There is screw between radial direction pin-and-hole and radial direction screw；There is first annular sealing between the lateral wall of the first little axle sleeve and the madial wall of large shaft sleeve
Circle, the first little axle sleeve（Madial wall and rotating shaft it is cylindrical between have the second O-ring seal.
That section of rotating shaft beyond large shaft sleeve outer end is in oblateness, so that this section of the one of rotating shaft group of opposite flank is
Plane parallel to each other.There is a connecting hole described locking clasp one end, the shape of the connecting hole be located at beyond large shaft sleeve outer end
That section of configured rotation shaft be adapted, locking clasp be enclosed within rotating shaft by the connecting hole.
Away from the boss of oriented its disposed inboard in locking clasp one end of connecting hole, so that step formed here, described
Spacing wedge has outward flange near that side of doorframe, and under the state of closing the door, rotating shaft, locking clasp is located at spacing wedge outside,
And outward flange catches on the step.
There is sealing strip between the surrounding and doorframe of the door leaf inner surface, and the sealing strip is silastic sealing strip.
Above scheme is taken, with advantages below：
The door leaf medial surface surrounding on the inside of sealing strip due to ship of the invention with fast opening and closing watertight door has circumferential reinforcing plate, week
To having reinforcing plate on the door leaf medial surface on the inside of reinforcing plate.The intensity of door leaf can be greatly increased using reinforcing plate so that relatively thin
Door leaf can also reach the bearing strength of needs.So as to greatly reduce the weight of whole watertight door, not only cause that opening and closing are convenient,
And the material that needs is few during manufacture, greatly reduces manufacturing cost.
Brief description of the drawings
Fig. 1 is structural representation of the ship of the invention with fast opening and closing watertight door；
Fig. 2 is the A-A of Fig. 1 to schematic cross-sectional view；
Fig. 3 is the B-B direction schematic cross-sectional view of Fig. 2；
The C-C of Fig. 4 bitmaps 2 is to schematic cross-sectional view；
The I portions enlarged diagram of Fig. 5 bitmaps 2.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Fig. 1 ~ Fig. 4, ship of the invention includes doorframe 2 and door leaf 3, doorframe 2 and door leaf 3 with fast opening and closing watertight door
A vertical corresponding sides by hinge it is hinged, be provided with retaining mechanism between doorframe 2 and door leaf 3.Table in the door leaf 3
There is sealing strip 7 between the surrounding and doorframe 2 in face so that coordinate in sealing shape between the two.The surrounding of the medial surface of the door leaf 3 is provided with
Raised 6, it is connected with reinforcing plate 4 in raised 6.The reinforcing plate 4 is in strip, and its width is less than raised 6 width, is strengthened
The plate face of plate 4 is perpendicular with the plate face of door leaf 3, and a side long of reinforcing plate 4 is connected with the medial surface of door leaf 3, reinforcing plate 4 it is another
Oriented its side in one side long in 90 ° of kinks 5 of bending, two short sides of reinforcing plate 4 respectively with the medial surface of circumferential reinforcing plate 4
Corresponding position link together..
In order to further mitigate the weight of door leaf 3, the retaining mechanism is uniform with the surrounding of door leaf 3 along doorframe 2.The locking machine
Structure contains the large shaft sleeve 15 on doorframe 2 and the spacing wedge 24 on door leaf 3, on the corresponding doorframe 2 of the large shaft sleeve 15
Through hole is machined with, the center line of through hole is perpendicular with the plate face of door leaf 3, and the large shaft sleeve 15 is fixed in through hole, and large shaft sleeve
15 two ends are stretched out from the two ends of through hole respectively.There is rotating shaft 9 in the large shaft sleeve 15, the two ends of rotating shaft 9 are respectively from large shaft sleeve 15
Two ends stretch out, between rotating shaft 9 and large shaft sleeve 15 in go to sealing shape coordinate.9 one sections of the rotating shaft positioned at the outside of doorframe 2 has locking to prick
Button 18, under the state of closing the door, rotating shaft 9, locking clasp 18 is located at the outside of spacing wedge 24.
Open and close door, further mitigates the weight of door leaf 3 for convenience, prevents swing handle 1 from interfering foreign object, the doorframe 2
One end of rotating shaft 9 of inner side is fixed with linkage set 10, and linkage set 10 is respectively connected with connecting rod, there is swing handle 1 on the doorframe 2, even
Bar is connected away from one end of linkage set 10 with the swing handle 1 of doorframe 2.
It is between the compression degree between adjustment door leaf 3 and doorframe 2 for convenience, the axial direction of the locking clasp 18 and rotating shaft 9
Slide shape to coordinate, coordinate in fixing shape between the circumference of locking clasp 18 and rotating shaft 9.The concentric integrally connected in outer end of the rotating shaft 9
There is screw mandrel 20, there is the nut 19 for pushing down locking clasp 18 on screw mandrel 20.Between the inner of the linkage set 10 and large shaft sleeve 15
Have and annular gasket 11 is cased with the rotating shaft 9 in spacing, and the spacing, covered in the rotating shaft 9 between annular gasket 11 and locking clasp 18
There are the first little axle sleeve 12 and the second little axle sleeve 17, the first little axle sleeve 12 offsets with annular gasket 11, the second little axle sleeve 17 and locking
Clasp 18 offsets, and the first little axle sleeve 12 is fixedly connected with large shaft sleeve 15, in slip between the second little axle sleeve 17 and large shaft sleeve 15 and rotating shaft 9
Shape coordinates, and has spring 16 between the first little axle sleeve 12 and the second little axle sleeve 17.In first little axle sleeve 12 and large shaft sleeve 15 respectively
There are the radial direction pin-and-hole 25 and radial direction screw 26 being connected, there is screw 8 between radial direction pin-and-hole 25 and radial direction screw 26.First little axle sleeve
（There are first annular sealing ring 14, madial wall and the rotating shaft 9 of the first little axle sleeve 12 between 12 lateral wall and the madial wall of large shaft sleeve 15
Cylindrical has the second O-ring seal 13.That section of rotating shaft 9 beyond the outer end of large shaft sleeve 15 is in oblateness, so that the section
One group of opposite flank of rotating shaft 9 is plane parallel to each other.There are connecting hole, the shape of the connecting hole in described locking clasp 18 one end
Shape is adapted with the shape of that section of rotating shaft 9 beyond the outer end of large shaft sleeve 15, and locking clasp 18 is enclosed within rotating shaft 9 by the connecting hole
On.Away from the boss 23 of oriented its disposed inboard in the one end of locking clasp 18 of connecting hole, so that step formed here 22, described
Spacing wedge 24 has outward flange 21 near that side of doorframe 2, and under the state of closing the door, rotating shaft 9, locking clasp 18 is located at spacing
The outside of wedge 24, and outward flange 21 catches on the step 22.
The sealing strip 7 is silastic sealing strip 7.Advantage using silastic sealing strip 7 is good rebound performance, anti-ocean
Environment and ageing-resistant performance are protruded.
During enabling, swing handle 1 is first rotated, drives corresponding linkage set 10 and rotating shaft 9 to rotate by each connecting rod so that
Locking clasp 18 leaves spacing wedge 24.Then, due to the effect of the screen resilience of silastic sealing strip 7, door leaf 3 outwards turns along hinge side
It is dynamic to complete door opening action.At closing time, door leaf 3 is first promoted inwardly to be rotated along hinge side, until the sealing strip 7 of door leaf 3 is by door
Frame 2 is compressed.Then, swing handle 1 is rotated, drives corresponding linkage set 10 and rotating shaft 9 to rotate by each connecting rod so that locking
Complete to close the door by clasp 18 is located on the outside of spacing wedge 24, and outward flange 21 catches on the step 22.
Claims (9)
1. ship is opened and closed watertight door, including doorframe with fast（2）And door leaf（3）, doorframe（2）With door leaf（3）A vertical correspondence
Side is hinged, doorframe（2）With door leaf（3）Between have retaining mechanism, door leaf（3）With doorframe（2）Surrounding between in sealing shape match somebody with somebody
Close；It is characterized in that the door leaf（3）The surrounding of medial surface has projection（6）, it is raised（6）Inside it is connected with reinforcing plate（4）.
2. ship as claimed in claim 1 is opened and closed watertight door with fast, it is characterised in that the reinforcing plate（4）In strip, and
Its width is less than the projection（6）Width, reinforcing plate（4）Plate face and door leaf（3）Plate face it is perpendicular, reinforcing plate（4）'s
One side long and door leaf（3）Medial surface be connected, reinforcing plate（4）Oriented its side in another side long in 90 ° bending bendings
Portion（5）, reinforcing plate（4）Two short sides respectively with circumferential reinforcing plate（4）The corresponding position of medial surface links together.
3. ship as claimed in claim 1 is opened and closed watertight door with fast, it is characterised in that the retaining mechanism is along doorframe（2）With door
Page（3）Surrounding it is uniform；The retaining mechanism contains positioned at doorframe（2）On large shaft sleeve（15）With positioned at door leaf（3）On limit
Position wedge（24）, the large shaft sleeve（15）Corresponding doorframe（2）On have through hole, the center line and door leaf of through hole（3）Plate face mutually hang down
Directly, the large shaft sleeve（15）It is fixed in through hole, and large shaft sleeve（15）Two ends stretched out from the two ends of through hole respectively；The big axle
Set（15）Inside there is rotating shaft（9）, rotating shaft（9）Two ends respectively from large shaft sleeve（15）Two ends stretch out, rotating shaft（9）With large shaft sleeve（15）
Between in go to sealing shape coordinate；Positioned at doorframe（2）The rotating shaft in outside（9）One section has locking clasp（18）, under the state of closing the door, turn
Dynamic rotating shaft（9）, lock clasp（18）Positioned at spacing wedge（24）Outside.
4. ship as claimed in claim 3 is opened and closed watertight door with fast, it is characterised in that the doorframe（2）The rotating shaft of inner side（9）
One end is fixed with linkage set（10）, linkage set（10）It is respectively connected with connecting rod, the doorframe（2）On have swing handle（1）, connecting rod is remote
Covered from linkage（10）One end and doorframe（2）Swing handle（1）It is connected.
5. ship as claimed in claim 4 is opened and closed watertight door with fast, it is characterised in that the locking clasp（18）With rotating shaft（9）
Axial direction between in slide shape coordinate, lock clasp（18）With rotating shaft（9）Circumference between in fixing shape coordinate；The rotating shaft（9）'s
Outer end is connected with screw mandrel with one heart（20）, screw mandrel（20）On have for pushing down locking clasp（18）Nut（19）；It is described
Dynamic set（10）With large shaft sleeve（15）The inner between have rotating shaft in spacing, and the spacing（9）On be cased with annular gasket（11）, annular
Pad（11）With locking clasp（18）Between rotating shaft（9）On be cased with the first little axle sleeve（12）With the second little axle sleeve（17）, first is small
Axle sleeve（12）With annular gasket（11）Offset, the second little axle sleeve（17）With locking clasp（18）Offset, the first little axle sleeve（12）With
Large shaft sleeve（15）It is fixedly connected with, the second little axle sleeve（17）With large shaft sleeve（15）And rotating shaft（9）Between in slide shape coordinate, the first little axle sleeve
（12）With the second little axle sleeve（17）Between have spring（16）.
6. ship as claimed in claim 5 is opened and closed watertight door with fast, it is characterised in that first little axle sleeve（12）With big axle
Set（15）It is upper to have the radial direction pin-and-hole being connected respectively（25）With radial direction screw（26）, radial direction pin-and-hole（25）With radial direction screw（26）Between
There is screw（8）；First little axle sleeve（12）Lateral wall and large shaft sleeve（15）Madial wall between have first annular sealing ring（14）, the
One little axle sleeve（12）Madial wall and rotating shaft（9）Cylindrical has the second O-ring seal（13）.
7. ship as claimed in claim 6 is opened and closed watertight door with fast, it is characterised in that positioned at large shaft sleeve（15）Beyond outer end
That section of rotating shaft（9）In oblateness, so that this section of rotating shaft（9）One group of opposite flank be plane parallel to each other；The lock
Tight clasp（18）There is a connecting hole one end, the shape of the connecting hole be located at large shaft sleeve（15）That section of rotating shaft beyond outer end（9）
Shape is adapted, and locks clasp（18）Rotating shaft is enclosed within by the connecting hole（9）On.
8. ship as claimed in claim 7 is opened and closed watertight door with fast, it is characterised in that away from the locking clasp of connecting hole（18）
The boss of oriented its disposed inboard in one end（23）, so that step formed here（22）, the spacing wedge（24）Near doorframe（2）
That side have outward flange（21）, under the state of closing the door, rotating shaft（9）, lock clasp（18）Positioned at spacing wedge（24）Outside,
And outward flange（21）Catch on the step（22）.
9. the ship as any one of claim 1 ~ 8 is opened and closed watertight door with fast, it is characterised in that the door leaf（3）Interior table
The surrounding and doorframe in face（2）Between have sealing strip（7）, and the sealing strip（7）It is silastic sealing strip（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173090.XA CN106761242A (en) | 2016-12-23 | 2016-12-23 | Ship is opened and closed watertight door with fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173090.XA CN106761242A (en) | 2016-12-23 | 2016-12-23 | Ship is opened and closed watertight door with fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106761242A true CN106761242A (en) | 2017-05-31 |
Family
ID=58889668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611173090.XA Pending CN106761242A (en) | 2016-12-23 | 2016-12-23 | Ship is opened and closed watertight door with fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761242A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266103A (en) * | 2018-02-28 | 2018-07-10 | 无锡德林防务装备股份有限公司 | A kind of gas-tight door |
| CN114368459A (en) * | 2021-12-14 | 2022-04-19 | 安徽欣万顺安全装备科技有限公司 | Single-handle quick-opening linkage steel watertight door |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479382A (en) * | 2010-04-08 | 2011-10-12 | John Kelly | Flood defence door assembly |
| CN103615148A (en) * | 2013-11-20 | 2014-03-05 | 天长市远洋船舶设备有限公司 | Marine door handle and marine door |
| CN204282991U (en) * | 2014-10-16 | 2015-04-22 | 重庆帆洪船舶机械有限公司 | A kind of boats and ships steel watertight door |
| CN106121444A (en) * | 2016-08-10 | 2016-11-16 | 安徽百世伽德安防科技有限公司 | A kind of rotation secret room door |
| CN206477757U (en) * | 2016-12-23 | 2017-09-08 | 无锡市海联舰船附件有限公司 | Ship is opened and closed watertight door with fast |
-
2016
- 2016-12-23 CN CN201611173090.XA patent/CN106761242A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2479382A (en) * | 2010-04-08 | 2011-10-12 | John Kelly | Flood defence door assembly |
| CN103615148A (en) * | 2013-11-20 | 2014-03-05 | 天长市远洋船舶设备有限公司 | Marine door handle and marine door |
| CN204282991U (en) * | 2014-10-16 | 2015-04-22 | 重庆帆洪船舶机械有限公司 | A kind of boats and ships steel watertight door |
| CN106121444A (en) * | 2016-08-10 | 2016-11-16 | 安徽百世伽德安防科技有限公司 | A kind of rotation secret room door |
| CN206477757U (en) * | 2016-12-23 | 2017-09-08 | 无锡市海联舰船附件有限公司 | Ship is opened and closed watertight door with fast |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266103A (en) * | 2018-02-28 | 2018-07-10 | 无锡德林防务装备股份有限公司 | A kind of gas-tight door |
| CN114368459A (en) * | 2021-12-14 | 2022-04-19 | 安徽欣万顺安全装备科技有限公司 | Single-handle quick-opening linkage steel watertight door |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |