CN110344734A - A kind of building fire protection door quick opening - Google Patents
A kind of building fire protection door quick opening Download PDFInfo
- Publication number
- CN110344734A CN110344734A CN201910479565.5A CN201910479565A CN110344734A CN 110344734 A CN110344734 A CN 110344734A CN 201910479565 A CN201910479565 A CN 201910479565A CN 110344734 A CN110344734 A CN 110344734A
- Authority
- CN
- China
- Prior art keywords
- magnet
- doorframe
- side wall
- door body
- fire protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- 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
- E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
-
- 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
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Special Wing (AREA)
Abstract
The invention discloses a kind of building fire protection door quick opening, including doorframe and door body, the accommodating chamber for accommodating clear water is offered at the top of the doorframe, the bottom and side of the accommodating chamber offer symmetrically arranged apopore；The door body is rotatably connected in doorframe by shaft, and the door body slidably connects the first magnet far from an end face of shaft, and the second magnet is fixedly connected on the side wall of the doorframe, and second magnet is in contact with the first magnet；The present invention more can not only quickly open fire resistant doorsets convenient for people, shorten fleeing from the time for people, and can alleviate the sprawling close to the intensity of a fire at door body, reduce the amount of blowing out of smog, and certain is in block the rescue time for extending the intensity of a fire.
Description
Technical field
The present invention relates to fire resistant doorsets equipment technical field, specially a kind of building fire protection door quick opening.
Background technique
Fire resistant doorsets refer to is able to satisfy the door that fire stability, integrality and thermal insulation require within a certain period of time.It is to set
There are the fire protection separators of certain fire resistance in fire protection interval, emergency staircase, vertical shaft etc..Fire resistant doorsets, which remove, to be had commonly
Outside the effect of door, has the function of preventing fire spreading and flue gas diffusion, the sprawling of the intensity of a fire can be prevented within a certain period of time, really
Evacuating personnel is protected, when fire condition occurs, due to the limitation of elevator, people need to be fled from by stair, to also make
The fire resistant doorsets for obtaining the public arenas such as staircase are particularly important, however existing building fire protection door is opened generally by unilateral
And be connected by lock body with doorframe, when in case of emergency, people need to press handle when opening fire resistant doorsets, to one
Layback moves fire resistant doorsets or pushes fire resistant doorsets, if the regular hour can be consumed in the case that situation more emergency personnel is more, thus
Fleeing from the time for people is extended, thus it is proposed that a kind of building fire protection door quick opening is for solving the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of building fire protection door quick openings, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of building fire protection door quick opening, including
Doorframe and door body, the accommodating chamber for accommodating clear water is offered at the top of the doorframe, and the bottom and side of the accommodating chamber are equal
Offer symmetrically arranged apopore；
The door body is rotatably connected in doorframe by shaft, and the door body slidably connects the first magnetic far from an end face of shaft
Iron is fixedly connected with the second magnet on the side wall of the doorframe, and second magnet is in contact with the first magnet.
Preferably, it is communicated with water inlet line on the side wall of the accommodating chamber, and the slide over side walls of accommodating chamber is connected with pair
Claim the gravity block of setting, is fixedly connected to rubber stopper on the lower surface of the gravity and side wall, the rubber stopper is far from gravity
One end of block is plugged in apopore.
Preferably, it is fixedly connected with sliding block on the side wall of the gravity block, offers and is used on the side wall of the accommodating chamber
The sliding slot of sliding block sliding, the upper surface of the gravity block is fixedly connected with drawstring, offers at the top of the accommodating chamber and staggeredly set
The L shape through-hole set, one end of the drawstring pass through L shape through-hole and are fixedly connected with pulling block.
Preferably, it is rotatably connected to bend wheel on the side wall of the L shape through-hole, the bend wheel is matched with drawstring.
Preferably, circular cylinder is fixedly connected on the side wall of the door body vertically, the circular cylinder is arranged and is fixedly connected
In shaft, the upper and lower ends of the shaft are rotatably connected on the top and bottom of doorframe.
Preferably, the upper and lower ends of the circular cylinder are in contact with the top and bottom of doorframe, and circular cylinder is far from door body
Side wall be in contact with the side of doorframe.
Preferably, the holding tank for accommodating the first magnet, the side of the holding tank are offered on the side wall of the door body
Portion, top and bottom are openning shape, are in contact at the top and bottom of the upper and lower end face of first magnet and doorframe.
Preferably, it is fixedly connected with sliding shoe on the side wall of first magnet, is offered on the side wall of the holding tank
For the bar shaped sliding slot of sliding shoe sliding, and sliding shoe is connect by spring with the sidewall elastomer of bar shaped sliding slot.
Preferably, the groove for accommodating the second magnet is offered on the side wall of the doorframe, second magnet is located at
In groove, and the end face that the second magnet is in contact with the first magnet is heteropolar magnetic pole.
Compared with prior art, the beneficial effects of the present invention are: by the way that the first magnet block, are arranged on door body, doorframe
Two magnet blocks, convenient for controlling the closing of door body, by the way that sliding block and spring are arranged on the second magnet, convenient for the cunning of the first magnet
It is dynamic, the opening speed of door body is improved, by opening up accommodating chamber at the top of doorframe, convenient for loading clear water, by accommodating chamber
Bottom and side wall on open up symmetrically arranged apopore, convenient for the outflow of clear water, the intensity of a fire at the door body can not only be alleviated
Sprawling, and the amount through blowing out between door body and doorframe gap can be reduced, by the way that rubber stopper is arranged on apopore, be convenient for
The opening and closing for controlling apopore, by the way that gravity block is arranged in the upside of rubber stopper, convenient for controlling the movement of rubber stopper, by gravity
Drawstring is arranged in the upside of block, convenient for moving up and down for control gravity block；This building fire protection door quick opening can not only
Fire resistant doorsets are more quickly opened convenient for people, shorten fleeing from the time for people, and can be alleviated close to the intensity of a fire at door body
Sprawling, reduce the amount of blowing out of smog, it is certain in blocking the rescue time for extending the intensity of a fire.
Detailed description of the invention
Fig. 1 is perspective view of the present invention；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A；
Fig. 3 is the positive schematic diagram of internal structure of the present invention；
Fig. 4 is left side schematic diagram of internal structure of the present invention；
Fig. 5 is the partial enlargement structural representation in Fig. 4 at B；
Fig. 6 is the partial enlargement structural representation in Fig. 4 at C；
Fig. 7 is overlooking surface schematic diagram of internal structure of the present invention.
In figure: 1 doorframe, 11 accommodating chambers, 111 sliding slots, 112 L shape through-holes, 113 bend wheels, 12 apopores, 13 water inlet pipes
Road, 14 gravity blocks, 141 sliding blocks, 142 drawstrings, 143 pulling blocks, 144 fixed links, 15 rubber stoppers, 16 grooves, 2 door body, 21 holding tanks,
22 bar shaped sliding slots, 23 handles, 3 shafts, 31 circular cylinders, 4 first magnet, 41 sliding shoes, 42 springs, 5 second magnet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7 is please referred to, the present invention provides a kind of technical solution: a kind of building fire protection door quick opening, including door
Frame 1 and door body 2 are fixedly connected with symmetrically arranged handle 23 on the side wall of door body 2, convenient for controlling the rotation of door body 2, doorframe 1
Top offer the accommodating chamber 11 for accommodating clear water, the bottom and side of accommodating chamber 11 offer symmetrically arranged water outlet
Hole 12.
Door body 2 is rotatably connected in doorframe 1 by shaft 3, and door body 2 slidably connects first far from an end face of shaft 3
Magnet 4 is fixedly connected with the second magnet 5 on the side wall of doorframe 1, and the second magnet 5 is in contact with the first magnet 4.
Water inlet line 13 is communicated on the side wall of accommodating chamber 11, convenient for water is inputted in accommodating chamber 11, and accommodating chamber 11
Slide over side walls is connected with symmetrically arranged gravity block 14, is fixedly connected to rubber stopper on the lower surface of gravity 14 and side wall
15, rubber stopper 15 is plugged in apopore 12 far from one end of gravity block 14, convenient for controlling the opening and closing of apopore 12.
It is fixedly connected with sliding block 141 on the side wall of gravity block 14, is offered on the side wall of accommodating chamber 11 sliding for sliding block 141
Dynamic sliding slot 111, the upper surface of gravity block 14 are fixedly connected with drawstring 142, and the top of accommodating chamber 11 offers the L being staggered
Shape through-hole 112, the outside that doorframe 1 is staggeredly extended to convenient for two drawstrings can pull reversed when fire condition is more serious
Drawstring 142, so that the side apopore 12 close to the intensity of a fire is in open state, convenient for alleviating the intensity of a fire near door body 1, drawstring 142
One end pass through and L shape through-hole 112 and be fixedly connected with pulling block 143, be fixedly connected on the side wall of doorframe 1 for around being drawstring
142 fixed link 144, convenient for controlling the position of gravity block 14.
Bend wheel 113 is rotatably connected on the side wall of L shape through-hole 112, bend wheel 113 is matched with drawstring 142, convenient for drawing
Dynamic drawstring 142, the position for preventing drawstring 142 to be located in L shape through-hole 112 is worn.
Circular cylinder 31 is fixedly connected on the side wall of door body 2 vertically, circular cylinder 31 is arranged and is fixedly connected in shaft 3,
The upper and lower ends of shaft 3 are rotatably connected on the top and bottom of doorframe 1, are rotatably connected on doorframe 1 convenient for door body 2.
The upper and lower ends of circular cylinder 31 are in contact with the top and bottom of doorframe 1, and side wall of the circular cylinder 31 far from door body 2
It is in contact with the side of doorframe 1, the gap between door body and doorframe 1 can be reduced.
Offer the holding tank 21 for accommodating the first magnet 4 on the side wall of door body 2, the side of holding tank 21, top with
And bottom is openning shape, the upper and lower end face of the first magnet 4 is in contact with the top and bottom of doorframe 1, convenient for reducing the first magnetic
Gap between iron 4 and doorframe.
It is fixedly connected with sliding shoe 41 on the side wall of first magnet 4, offers on the side wall of holding tank 21 for sliding shoe
The bar shaped sliding slot 22 of 41 slidings, and sliding shoe 41 is connect by spring 42 with the sidewall elastomer of bar shaped sliding slot 22, and the first magnetic is convenient for
The sliding of iron 4.
The groove 16 for accommodating the second magnet 5 is offered on the side wall of doorframe 1, the second magnet 16 is located in groove 16,
And second the end face that is in contact with the first magnet 4 of magnet 5 be heteropolar magnetic pole, pass through the heteropolar of the second magnet 5 and the first magnet 4
Magnetic pole is attracting so that door body 2 and doorframe 1 can also reduce the gap between door body 2 and doorframe 1 in closed state to a certain extent.
Working principle: water inlet line 13 is connected with delivery equipment, and is equipped with control valve on water inlet line 13, installation
Mode and the internal structure of control valve, working principle, are known structure in the prior art, therefore this will not be repeated here, when
Encounter fire condition it is urgent when, the personnel of fleeing from can directly push door body 2 open, to flee from, since the first magnet 4 is slidably connected at door
In body 2, when pushing 2 phase side of door body, since the pulling force of extruding force and spring 42 can make the first magnet block 4 to door body 2
Inside it is mobile, consequently facilitating the opening of door body 2, flees from convenient for the evacuation of personnel, reduce personnel flees from the time.
When door body 2 is parallel with doorframe 1, due to the first magnet 4 and the second magnet 5 to opposite be heteropolar magnetic pole, from
And the first magnet block 4 is adsorbed on the second magnet block 5, to reduce the gap between door body 2 and doorframe 1, reduce cigarette
The emission of mist.
When the intensity of a fire is closer, when smokescope is larger, the pulling block 143 with intensity of a fire opposite side can be pulled, and by drawstring 142 around
It ties up in fixed link 144, pulling person's arm is avoided to lift for a long time, so that the gravity block 14 close to intensity of a fire side moves up, from
And the apopore 12 close to the intensity of a fire is opened, so that the water in accommodating chamber 11 is flowed out through apopore 12, can not only alleviate close to door
The sprawling of the intensity of a fire at body 2, and the smog through door body 2 Yu the floatd place of doorframe 1 can be reduced, it has ensured fled to a certain extent
The personal safety of personnel, and the time of intensity of a fire rescue can be extended, the material of door body 2 and doorframe 1 is heat-resisting material.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of building fire protection door quick opening, including doorframe (1) and door body (2), it is characterised in that: the doorframe (1)
Top offer the accommodating chamber (11) for accommodating clear water, the bottom of the accommodating chamber (11) is offered with side symmetrically to be set
The apopore (12) set；
The door body (2) is rotatably connected in doorframe (1) by shaft (3), an end face of the door body (2) far from shaft (3)
It slidably connects the first magnet (4), is fixedly connected with the second magnet (5) on the side wall of the doorframe (1), second magnet
(5) it is in contact with the first magnet (4).
2. a kind of building fire protection door quick opening according to claim 1, it is characterised in that: the accommodating chamber (11)
Side wall on be communicated with water inlet line (13), and the slide over side walls of accommodating chamber (11) is connected with symmetrically arranged gravity block
(14), it is fixedly connected to rubber stopper (15) on the lower surface of the gravity (14) and side wall, the rubber stopper (15) is far from weight
One end of power block (14) is plugged in apopore (12).
3. a kind of building fire protection door quick opening according to claim 2, it is characterised in that: the gravity block (14)
Side wall on be fixedly connected with sliding block (141), offered on the side wall of the accommodating chamber (11) for sliding block (141) sliding cunning
The upper surface of slot (111), the gravity block (14) is fixedly connected with drawstring (142), is offered at the top of the accommodating chamber (11)
The L shape through-hole (112) being staggered, one end of the drawstring (142) pass through L shape through-hole (112) and are fixedly connected with pulling block
(143)。
4. a kind of building fire protection door quick opening according to claim 5, it is characterised in that: the L shape through-hole
(112) it is rotatably connected on side wall bend wheel (113), the bend wheel (113) matches with drawstring (142).
5. a kind of building fire protection door quick opening according to claim 1, it is characterised in that: the door body (2)
It is fixedly connected with vertically on side wall circular cylinder (31), the circular cylinder (31) is arranged and is fixedly connected on shaft (3), described turn
The upper and lower ends of axis (3) are rotatably connected on the top and bottom of doorframe (1).
6. a kind of building fire protection door quick opening according to claim 6, it is characterised in that: the circular cylinder (31)
Upper and lower ends be in contact with the top and bottom of doorframe (1), and circular cylinder (31) far from door body (2) side wall and doorframe (1)
Side be in contact.
7. a kind of building fire protection door quick opening according to claim 1, it is characterised in that: the door body (2)
The holding tank (21) for accommodating the first magnet (4), side, top and the bottom of the holding tank (21) are offered on side wall
It is openning shape, is in contact at the top and bottom of the upper and lower end face and doorframe (1) of first magnet (4).
8. a kind of building fire protection door quick opening according to claim 7, it is characterised in that: first magnet
(4) it is fixedly connected with sliding shoe (41), is offered on the side wall of the holding tank (21) sliding for sliding shoe (41) on side wall
Dynamic bar shaped sliding slot (22), and sliding shoe (41) is connect by spring (42) with the sidewall elastomer of bar shaped sliding slot (22).
9. a kind of building fire protection door quick opening according to claim 1, it is characterised in that: the doorframe (1)
The groove (16) for accommodating the second magnet (5) is offered on side wall, second magnet (16) is located in groove (16), and the
The end face that two magnet (5) are in contact with the first magnet (4) is heteropolar magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479565.5A CN110344734B (en) | 2019-06-04 | 2019-06-04 | Quick opening device for building fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479565.5A CN110344734B (en) | 2019-06-04 | 2019-06-04 | Quick opening device for building fireproof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110344734A true CN110344734A (en) | 2019-10-18 |
| CN110344734B CN110344734B (en) | 2020-07-28 |
Family
ID=68181452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479565.5A Active CN110344734B (en) | 2019-06-04 | 2019-06-04 | Quick opening device for building fireproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110344734B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502587A (en) * | 2020-11-19 | 2021-03-16 | 浙江齐嘉消防科技有限公司 | Escape fireproof door |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485402Y (en) * | 2001-02-05 | 2002-04-10 | 林智勇 | Water curtain fireproof door |
| CN108843210A (en) * | 2018-07-14 | 2018-11-20 | 唐珊珊 | A kind of Fireproof door structure |
| CN208251927U (en) * | 2018-04-23 | 2018-12-18 | 广东龙电安防产品有限公司 | It is a kind of novel every cigarette fire resistant doorsets |
| KR101933353B1 (en) * | 2018-07-06 | 2018-12-27 | 신형철 | Apparatus for manufacturing Fire door |
| CN208518534U (en) * | 2018-06-21 | 2019-02-19 | 杭州普瑞除湿设备有限公司 | A kind of novel cold bridge proof access door of dehumidifier |
-
2019
- 2019-06-04 CN CN201910479565.5A patent/CN110344734B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485402Y (en) * | 2001-02-05 | 2002-04-10 | 林智勇 | Water curtain fireproof door |
| CN208251927U (en) * | 2018-04-23 | 2018-12-18 | 广东龙电安防产品有限公司 | It is a kind of novel every cigarette fire resistant doorsets |
| CN208518534U (en) * | 2018-06-21 | 2019-02-19 | 杭州普瑞除湿设备有限公司 | A kind of novel cold bridge proof access door of dehumidifier |
| KR101933353B1 (en) * | 2018-07-06 | 2018-12-27 | 신형철 | Apparatus for manufacturing Fire door |
| CN108843210A (en) * | 2018-07-14 | 2018-11-20 | 唐珊珊 | A kind of Fireproof door structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502587A (en) * | 2020-11-19 | 2021-03-16 | 浙江齐嘉消防科技有限公司 | Escape fireproof door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110344734B (en) | 2020-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108915509B (en) | A kind of sliding window having automatic dedusting function | |
| CN110344734A (en) | A kind of building fire protection door quick opening | |
| CN202690109U (en) | Fireproof fan system at cross aisle of tunnel | |
| CN207436817U (en) | A kind of slide rail type bilayer closed guard gate | |
| CN213039145U (en) | Slide rail type civil air defense door | |
| CN108952478A (en) | A kind of airtight translation door | |
| CN209742639U (en) | Energy-saving window with safety protection device | |
| CN209430006U (en) | A kind of fire prevention gate resistance cigarette device | |
| CN212985035U (en) | Fireproof shear wall building structure convenient for escape | |
| CN203372964U (en) | Vertically and upwards opened two-fold door for elevator | |
| CN209556767U (en) | A kind of airtight translation door | |
| CN106946133A (en) | The elevator that a kind of anti-floor personnel that delay to open the door fall | |
| CN205892438U (en) | Use cage door in lift | |
| CN207748727U (en) | A kind of wall structure for hiding safety door | |
| CN209653910U (en) | The interior control structure of shutter embedded in hollow glass | |
| CN218454698U (en) | Novel heat-insulation stainless steel fireproof door | |
| CN209908282U (en) | Automatic alarm door opener applied to building evacuation door | |
| AU2016253644B2 (en) | Window for a building | |
| CN106606826A (en) | High-rise escape device | |
| CN203021968U (en) | Plane gate | |
| IT201900001531A1 (en) | Magnetic induction closing device for windows and doors | |
| CN218815895U (en) | Fire door mechanism forcibly closed under power supply losing state | |
| CN210659731U (en) | Trackless heavy energy-saving sliding door | |
| CN103061314B (en) | Plane gate | |
| CN217030094U (en) | Novel heavy hammer type residual pressure valve adopting movable valve plate and mounting structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |