CN111994202B - Ocean passenger ship electromechanical room watertight fittings - Google Patents
Ocean passenger ship electromechanical room watertight fittings Download PDFInfo
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- CN111994202B CN111994202B CN202010780017.9A CN202010780017A CN111994202B CN 111994202 B CN111994202 B CN 111994202B CN 202010780017 A CN202010780017 A CN 202010780017A CN 111994202 B CN111994202 B CN 111994202B
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- fixed
- groove
- seat
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a waterproof device for an electromechanical room of an ocean passenger ship, which comprises a fixed seat, wherein the lower end of one side of the fixed seat is fixedly connected with a fixed sheet, one side of the upper end of the fixed sheet, which is far away from the fixed seat, is provided with a first groove, the front part and the rear part of the fixed seat are respectively provided with a movable plate, a clamping seat is arranged between the movable plates, the lower end of the clamping seat is in contact connection with the upper end of the fixed sheet, the clamping seat is positioned on one side of the fixed seat, and the lower end of the clamping seat is provided with a second groove. The invention is a waterproof device, can increase the height of the threshold, the inside of the clamping seat of the invention has fixed blocks with rubber blocks, when using, through supporting the rubber block against the lower end of the electromechanical room door, prevent water from entering the electromechanical room, solve the problem that the lower end of the electromechanical room door of the ocean passenger ship and the ground are mostly provided with gaps, and most of them are not provided with waterproof structures, water can easily pass through the lower end of the electromechanical room door, enter the electromechanical room, and damage the power equipment in the electromechanical room.
Description
Technical Field
The invention relates to a waterproof device, in particular to a waterproof device for an electromechanical room of an ocean passenger ship.
Background
At present, gaps are reserved at the lower end of an electromechanical room door of an ocean passenger ship and the ground, a waterproof structure is not arranged at most, water easily penetrates through the lower end of the electromechanical room door, and power equipment in the electromechanical room is damaged inside the electromechanical room.
Disclosure of Invention
The invention provides a waterproof device for an electromechanical room of an ocean passenger ship, which effectively solves the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a waterproof device for an electromechanical chamber of an ocean passenger ship, which comprises a fixed seat, wherein the lower end of one side of the fixed seat is fixedly connected with a fixed sheet, one side of the upper end of the fixed sheet, which is far away from the fixed seat, is provided with a first groove, the front part and the rear part of the fixed seat are respectively provided with a movable plate, a clamping seat is arranged between the movable plates, the lower end of the clamping seat is in contact connection with the upper end of the fixed sheet, the clamping seat is positioned on one side of the fixed seat, the lower end of the clamping seat is provided with a second groove, the second groove and the first groove are positioned on the same vertical line, both sides of the upper end inside the second groove are fixedly connected with a limiting mechanism, the upper end of the clamping seat is provided with a third groove, a through hole is arranged between the third groove and the second groove, both sides of the upper end inside the third groove are provided with third sliding grooves, and the lower ends of the inside of the third sliding grooves are respectively connected with a third sliding block, the fixed block is fixedly connected between the third sliding blocks, the lower end of the fixed block is fixedly connected with a rotating disc, the lower end of the rotating disc is rotatably connected with a screw, the lower end of the screw is fixedly connected with a fixed disc, the upper end of the fixed block is fixedly connected with a rubber block, one side of the clamping seat close to the fixed seat is fixedly connected with a clamping block, and one side of the clamping seat far away from the clamping block is in contact connection with one side of the fixed seat.
As a preferred technical scheme of the invention, the distance between the movable plates is larger than the distance between the front and the rear of the clamping seat, the movable plates comprise fixed plates, one sides of the fixed plates, which are far away from the fixed seat, are respectively provided with a first through groove, the upper and the lower ends of the interiors of the first through grooves are respectively provided with a first sliding groove, the interiors of the first sliding grooves are respectively connected with a first sliding block in a sliding manner, a connecting block is respectively and fixedly connected between the first sliding blocks arranged on the same fixed plate, the distance between the upper and the lower ends of the connecting block is smaller than the distance between the upper and the lower ends of the interiors of the first through grooves, one end of the connecting block, which is close to the fixed seat, penetrates through the interiors of the first through grooves and is respectively and fixedly connected to the clamping seat, the clamping seat is connected between the fixed plates in a sliding manner through the connecting block, one side of the fixed plate, which is close to the fixed seat, is movably connected to a movable shaft, one end of the movable shaft, which is far away from the fixed plate, is fixedly connected to the fixed seat, the fixed plates are movably connected on the fixed seat through movable shafts.
As a preferable technical scheme of the invention, the limiting mechanism comprises a fixed shell, one side of the fixed shell, which is close to the screw rod, is provided with a slot, the upper end and the lower end of the inside of the slot are respectively provided with a second chute, the inside of the second chute is respectively connected with a second sliding block in a sliding way, a limit plate is respectively and fixedly connected between the second sliding blocks arranged in the same fixed shell, the limiting plates are all vertical to the screw rod, the distance between the upper end and the lower end of each limiting plate is smaller than the distance between the upper end and the lower end of the slot, the lower ends of the fixed shells are provided with second through grooves, the lower ends of the fixed shells are provided with movable blocks, the movable block all is T type structure, the second that sets up on the homonymy set casing is led to the groove and equal fixed connection all passes to the upper end of movable block on the second slider that the inside lower extreme of homonymy set casing set up, the second that movable block upper end sliding connection set up on the homonymy set casing leads to inslot portion.
As a preferred technical scheme of the invention, a first clamping groove is arranged at the upper end of the fixed seat, the distance between the two sides of the first clamping groove is the same as the distance between the upper end and the lower end of the clamping block, a second clamping groove is arranged at the lower end of the fixed seat, and a mounting seat is clamped in the second clamping groove.
As a preferable technical solution of the present invention, the front and rear upper ends of the fixing base are provided with first mounting holes, first bolts are inserted into the first mounting holes, the front and rear lower ends of the fixing base are provided with second mounting holes, and second bolts are inserted into the second mounting holes.
As a preferable technical solution of the present invention, the first bolts pass through the outside of the fixing seat and extend to the inside of the first locking groove, and the second bolts pass through the outside of the fixing seat and extend to the inside of the mounting seat.
As a preferable technical scheme of the invention, the screw and the through hole are positioned on the same vertical line, the lower end of the screw penetrates through the through hole and extends to the inside of the first groove, and the screw is in threaded connection with the inside of the through hole.
As a preferable technical scheme of the invention, the periphery of the fixed disk is fixedly connected with a plurality of biting teeth, and the distances between every two adjacent biting teeth are the same.
The invention has the following beneficial effects:
the invention is a waterproof device, can increase the height of the threshold, the inside of the clamping seat of the invention has fixed blocks with rubber blocks, when using, through supporting the rubber block against the lower end of the electromechanical room door, prevent water from entering the electromechanical room, solve at present, the lower end of the electromechanical room door of ocean passenger ship and ground leave the gap mostly, and mostly there is not set up the waterproof structure, water is apt to cross the lower end of the electromechanical room door, enter the electromechanical room, the problem to damage the electrical equipment in the electromechanical room.
The limiting mechanism is arranged in the second groove, so that the position of the screw rod can be conveniently fixed, and the rubber block is blocked in a gap between the lower end of the motor room door and the ground, so that the waterproof effect is achieved.
Drawings
FIG. 1 is a cutaway view of the present invention;
FIG. 2 is a view of the area at A in FIG. 1;
FIG. 3 is a schematic view of the movable plate of the present invention;
fig. 4 is an external structural view of the present invention.
In the figure: 1. a fixed seat; 2. a fixing sheet; 3. a first groove; 4. a movable plate; 41. a fixing plate; 42. a first through groove; 43. a first chute; 44. a first slider; 45. connecting blocks; 46. a movable shaft; 5. a card holder; 6. a second groove; 7. a limiting mechanism; 71. a stationary case; 72. a slot; 73. a second chute; 74. a second slider; 75. a limiting plate; 76. a second through groove; 77. a movable block; 8. a third groove; 9. a through hole; 10. a third chute; 11. a third slider; 12. a fixed block; 13. rotating the disc; 14. a screw; 15. fixing the disc; 16. biting teeth; 17. a rubber block; 18. a clamping block; 19. a first card slot; 20. a second card slot; 21. a mounting seat; 22. a first mounting hole; 23. a first bolt; 24. a second mounting hole; 25. and a second bolt.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1-4, the waterproof device for the electromechanical room of the ocean passenger ship comprises a fixed seat 1, a fixed plate 2 is fixedly connected to the lower end of one side of the fixed seat 1, a first groove 3 is arranged on one side, away from the fixed seat 1, of the upper end of the fixed plate 2, movable plates 4 are arranged on the front and back portions of the fixed seat 1, a clamping seat 5 is arranged between the movable plates 4, the lower end of the clamping seat 5 is in contact connection with the upper end of the fixed plate 2, the clamping seat 5 is arranged on one side of the fixed seat 1, a second groove 6 is arranged on the lower end of the clamping seat 5, the second groove 6 and the first groove 3 are arranged on the same perpendicular bisector, limiting mechanisms 7 are fixedly connected to both sides of the upper end inside the second groove 6, a third groove 8 is arranged on the upper end of the clamping seat 5, a through hole 9 is arranged between the third groove 8 and the second groove 6, third chutes 10 are arranged on both sides of the upper end inside the third groove 8, the inside lower extreme of third spout 10 all sliding connection have third slider 11, fixedly connected with fixed block 12 between the third slider 11, the lower extreme fixedly connected with rolling disc 13 of fixed block 12, the lower extreme of rolling disc 13 rotates and is connected with screw rod 14, the lower extreme fixedly connected with fixed disk 15 of screw rod 14, the upper end fixedly connected with rubber block 17 of fixed block 12, one side fixedly connected with fixture block 18 that cassette 5 is close to fixing base 1, one side that cassette 5 was kept away from to fixture block 18 is connected with one side contact of fixing base 1.
Wherein, the distance between the movable plates 4 is greater than the distance between the front and the rear of the clamping seat 5, the movable plates 4 include fixed plates 41, first through grooves 42 are respectively disposed on the sides of the fixed plates 41 far away from the fixed seat 1, first sliding grooves 43 are respectively disposed at the upper and lower ends inside the first through grooves 42, first sliding blocks 44 are respectively and slidably connected inside the first sliding grooves 43, connecting blocks 45 are respectively and fixedly connected between the first sliding blocks 44 disposed on the same fixed plate 41, the distance between the upper and lower ends of the connecting blocks 45 is smaller than the distance between the upper and lower ends inside the first through grooves 42, one end of the connecting block 45 close to the fixed seat 1 penetrates through the inside of the first through groove 42 and is respectively and fixedly connected to the clamping seat 5, the clamping seat 5 is slidably connected between the fixed plates 41 through the connecting blocks 45, and a movable shaft 46 is movably connected to one side of the fixed plate 41 close to the fixed seat 1, the one end that the movable shaft 46 kept away from the fixed plate 41 is all fixedly connected on the fixing base 1, and the fixed plate 41 is all movably connected on the fixing base 1 through the movable shaft 46.
Wherein, the limiting mechanism 7 comprises a fixed shell 71, one side of the fixed shell 71 close to the screw 14 is provided with a slot 72, the upper and lower ends of the inside of the slot 72 are provided with a second chute 73, the inside of the second chute 73 is connected with a second slider 74 in a sliding manner, a limiting plate 75 is fixedly connected between the second sliders 74 arranged inside the same fixed shell 71, the limiting plates 75 are all perpendicular to the screw 14, the distance between the upper and lower ends of the limiting plate 75 is smaller than the distance between the upper and lower ends of the inside of the slot 72, the lower end of the fixed shell 71 is provided with a second through groove 76, the lower end of the fixed shell 71 is provided with a movable block 77, the movable block 77 is in a T-shaped structure, the upper end of the movable block 77 passes through the second through groove 76 arranged on the fixed shell 71 on the same side and is fixedly connected to the second slider 74 arranged at the lower end of the inside of the fixed shell 71 on the same side, the upper end of the movable block 77 is slidably connected to the inside of the second through groove 76 formed in the same side fixed shell 71.
Wherein, the upper end of fixing base 1 is equipped with first draw-in groove 19, distance between 19 both sides of first draw-in groove is the same with the distance between the lower extreme on the fixture block 18, the lower extreme of fixing base 1 is equipped with second draw-in groove 20, the equal joint in inside of second draw-in groove 20 has mount pad 21, the installation fixing base 1 of being convenient for.
The upper ends of the front and rear parts of the fixing seat 1 are respectively provided with a first mounting hole 22, a first bolt 23 is inserted into the first mounting hole 22, the lower ends of the front and rear parts of the fixing seat 1 are respectively provided with a second mounting hole 24, and a second bolt 25 is inserted into the second mounting hole 24.
Wherein, first bolt 23 all passes the outside of fixing base 1 and all extends to the inside of first draw-in groove 19, is convenient for fix fixture block 18 inside first draw-in groove 19, second bolt 25 all passes the outside of fixing base 1 and all extends to the inside of mount pad 21, and the fixing base 1 of being convenient for is fixed on mount pad 21.
Wherein, screw rod 14 and through-hole 9 are located same perpendicular bisector, the lower extreme of screw rod 14 passes through-hole 9 and extends to the inside of first recess 3, screw rod 14 threaded connection is inside through-hole 9.
Wherein, the periphery fixedly connected with of fixed disk 15 bites tooth 16 a plurality of, and adjacent two the distance between the tooth 16 is all the same, is convenient for block limiting plate 75.
Specifically, before the present invention is used, the present invention is moved to an installation place, then the installation seat 21 is welded on a doorsill of a door of an electromechanical room, the fixed seat 1 is clamped on the installation seat 21, the fixed seat 1 is fixed on the installation seat 21 through the second bolt 25, when the present invention is used, the fixed plate 41 is rotated by taking the movable shaft 46 as a center until the fixed plate 41 is vertical to the ground, the clamping seat 5 is rotated to the upper end of the fixed seat 1 in the rotation process of the fixed plate 41, at this time, the clamping block 18 arranged on the clamping seat 5 and the first clamping groove 19 arranged on the fixed seat 1 are positioned on the same perpendicular bisector, then the clamping seat 5 is pressed downwards until the connecting block 45 is moved to one side, close to the fixed seat 1, in the first through groove 42, at this time, the clamping block 18 is clamped in the first clamping groove 19, then the first bolts 23 are inserted into all the first installation holes 22, and the first bolts 23 are fastened by using a tool, fix cassette 5 on fixing base 1, then rotate screw rod 14 through fixed disk 15, push out third recess 8 through the one end that screw rod 14 was kept away from to fixed block 12 of screw rod 14 through screw rod 14, because block 17 is in compression state when third recess 8 is inside, can resume original state when being extruded third recess 8, continue to rotate screw rod 14, block up block 17 in the gap between electromechanical room door and ground, slide homonymy limiting plate 75 through movable block 77, and block homonymy between the tooth 16 that bites that sets up on fixed disk 15, fix the position at this moment of screw rod 14, when opening the door, withdraw the inside of third recess 8 with block 12 and block 17 through screw rod 14, lift off first bolt 23, upwards slide cassette 5, pull out block 18 from the inside of first draw-in groove 19, it can to move cassette 5 to original position again.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (1)
1. A waterproof device for an electromechanical room of an ocean passenger ship comprises a fixed seat (1) and is characterized in that the lower end of one side of the fixed seat (1) is fixedly connected with a fixed plate (2), one side, far away from the fixed seat (1), of the upper end of the fixed plate (2) is provided with a first groove (3), the front part and the rear part of the fixed seat (1) are respectively provided with a movable plate (4), a clamping seat (5) is arranged between the movable plates (4), the lower end of the clamping seat (5) is in contact connection with the upper end of the fixed plate (2), the clamping seat (5) is positioned on one side of the fixed seat (1), the lower end of the clamping seat (5) is provided with a second groove (6), the second groove (6) and the first groove (3) are positioned on the same vertical line, two sides of the upper end inside the second groove (6) are both fixedly connected with limiting mechanisms (7), the upper end of the clamping seat (5) is provided with a third groove (8), a through hole (9) is arranged between the third groove (8) and the second groove (6), the upper ends of two sides in the third groove (8) are respectively provided with a third sliding chute (10), the lower ends of the inner parts of the third sliding chutes (10) are connected with third sliding blocks (11) in a sliding way, a fixed block (12) is fixedly connected between the third sliding blocks (11), the lower end of the fixed block (12) is fixedly connected with a rotating disc (13), the lower end of the rotating disc (13) is rotationally connected with a screw rod (14), the lower end of the screw rod (14) is fixedly connected with a fixed disc (15), the upper end of the fixed block (12) is fixedly connected with a rubber block (17), one side of the clamping seat (5) close to the fixed seat (1) is fixedly connected with a clamping block (18), one side of the clamping block (18) far away from the clamping seat (5) is in contact connection with one side of the fixed seat (1);
the distance between the movable plates (4) is larger than the distance between the front and the rear of the clamping seat (5), each movable plate (4) comprises a fixed plate (41), one side of each fixed plate (41) far away from the corresponding fixed seat (1) is provided with a first through groove (42), the upper end and the lower end of the inside of each first through groove (42) are provided with first sliding grooves (43), the inside of each first sliding groove (43) is connected with a first sliding block (44) in a sliding manner, connecting blocks (45) are fixedly connected between the first sliding blocks (44) arranged on the same fixed plate (41), the distance between the upper end and the lower end of each connecting block (45) is smaller than the distance between the upper end and the lower end of the inside of the corresponding first through groove (42), one end, close to the fixed seat (1), of each connecting block (45) penetrates through the inside of the corresponding first through groove (42) and is fixedly connected to the clamping seat (5), and the clamping seat (5) is connected between the fixed plates (41) in a sliding manner through the connecting blocks (45), one side, close to the fixed seat (1), of the fixed plate (41) is movably connected with a movable shaft (46), one ends, far away from the fixed plate (41), of the movable shafts (46) are fixedly connected to the fixed seat (1), and the fixed plates (41) are movably connected to the fixed seat (1) through the movable shafts (46);
stop gear (7) are including set casing (71), one side that set casing (71) are close to screw rod (14) all is equipped with slot (72), the lower extreme all is equipped with second spout (73) on the inside of slot (72), the equal sliding connection in inside of second spout (73) has second slider (74), and is same equal fixedly connected with limiting plate (75) between second slider (74) of set casing (71) inside setting, limiting plate (75) all are perpendicular with screw rod (14), distance between limiting plate (75) the lower extreme all compares between the slot (72) inside lower extreme distance little, the lower extreme of set casing (71) all is equipped with the second and leads to groove (76), the lower extreme of set casing (71) all is equipped with movable block (77), movable block (77) all is T type structure, the upper end of movable block (77) all passes second logical groove (76) and the equal fixed connection that sets up on homonymy set casing (71) and leads to homonymy fixed connection The upper end of the movable block (77) is connected in a sliding manner inside a second through groove (76) formed in the fixed shell (71) on the same side on a second sliding block (74) arranged at the lower end inside the shell (71);
a first clamping groove (19) is formed in the upper end of the fixed seat (1), the distance between the two sides of the first clamping groove (19) is the same as the distance between the upper end and the lower end of the clamping block (18), a second clamping groove (20) is formed in the lower end of the fixed seat (1), and mounting seats (21) are clamped in the second clamping groove (20);
the upper ends of the front part and the rear part of the fixed seat (1) are respectively provided with a first mounting hole (22), a first bolt (23) is inserted into each first mounting hole (22), the lower ends of the front part and the rear part of the fixed seat (1) are respectively provided with a second mounting hole (24), and a second bolt (25) is inserted into each second mounting hole (24);
the first bolts (23) penetrate through the outer part of the fixed seat (1) and extend to the inner part of the first clamping groove (19), and the second bolts (25) penetrate through the outer part of the fixed seat (1) and extend to the inner part of the mounting seat (21);
the screw (14) and the through hole (9) are positioned on the same vertical line, the lower end of the screw (14) penetrates through the through hole (9) and extends into the first groove (3), and the screw (14) is in threaded connection with the inside of the through hole (9);
the periphery of the fixed disc (15) is fixedly connected with a plurality of biting teeth (16), and the distances between every two adjacent biting teeth (16) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780017.9A CN111994202B (en) | 2020-08-05 | 2020-08-05 | Ocean passenger ship electromechanical room watertight fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780017.9A CN111994202B (en) | 2020-08-05 | 2020-08-05 | Ocean passenger ship electromechanical room watertight fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111994202A CN111994202A (en) | 2020-11-27 |
| CN111994202B true CN111994202B (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010780017.9A Active CN111994202B (en) | 2020-08-05 | 2020-08-05 | Ocean passenger ship electromechanical room watertight fittings |
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| Country | Link |
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| CN (1) | CN111994202B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051273U (en) * | 1989-05-29 | 1990-01-17 | 聂永定 | Sealing apparatus for crack between door and floor |
| CN2323107Y (en) * | 1997-06-27 | 1999-06-09 | 谢炳记 | Waterproof device for threshold |
| CN2556344Y (en) * | 2002-08-20 | 2003-06-18 | 李佩峰 | Door bottom sealing means |
| DE202005015111U1 (en) * | 2005-09-28 | 2006-03-30 | Hahn, Wilfried | Automatically operated door seal is located between the door lower edge and the lower frame |
| KR101569069B1 (en) * | 2014-12-31 | 2015-11-13 | 김일준 | waterproof door apparatus |
| CN105507784A (en) * | 2015-12-31 | 2016-04-20 | 天津市佐佳奇装饰材料制造有限公司 | Door bottom sealing device |
| CN209539140U (en) * | 2018-10-27 | 2019-10-25 | 杭州冠宏人防工程设备有限公司 | A kind of civil air defense constructions and installations protective door of waterproof sealing |
| JP6603515B2 (en) * | 2015-08-26 | 2019-11-06 | 三和シヤッター工業株式会社 | Overhead door |
| CN209976328U (en) * | 2019-03-08 | 2020-01-21 | 天津市瑞英达门窗有限公司 | Door with waterproof function at bottom |
-
2020
- 2020-08-05 CN CN202010780017.9A patent/CN111994202B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051273U (en) * | 1989-05-29 | 1990-01-17 | 聂永定 | Sealing apparatus for crack between door and floor |
| CN2323107Y (en) * | 1997-06-27 | 1999-06-09 | 谢炳记 | Waterproof device for threshold |
| CN2556344Y (en) * | 2002-08-20 | 2003-06-18 | 李佩峰 | Door bottom sealing means |
| DE202005015111U1 (en) * | 2005-09-28 | 2006-03-30 | Hahn, Wilfried | Automatically operated door seal is located between the door lower edge and the lower frame |
| KR101569069B1 (en) * | 2014-12-31 | 2015-11-13 | 김일준 | waterproof door apparatus |
| JP6603515B2 (en) * | 2015-08-26 | 2019-11-06 | 三和シヤッター工業株式会社 | Overhead door |
| CN105507784A (en) * | 2015-12-31 | 2016-04-20 | 天津市佐佳奇装饰材料制造有限公司 | Door bottom sealing device |
| CN209539140U (en) * | 2018-10-27 | 2019-10-25 | 杭州冠宏人防工程设备有限公司 | A kind of civil air defense constructions and installations protective door of waterproof sealing |
| CN209976328U (en) * | 2019-03-08 | 2020-01-21 | 天津市瑞英达门窗有限公司 | Door with waterproof function at bottom |
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| Publication number | Publication date |
|---|---|
| CN111994202A (en) | 2020-11-27 |
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