CN109779492A - Humidifying flame-retardant fireproof door - Google Patents
Humidifying flame-retardant fireproof door Download PDFInfo
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- CN109779492A CN109779492A CN201910045716.6A CN201910045716A CN109779492A CN 109779492 A CN109779492 A CN 109779492A CN 201910045716 A CN201910045716 A CN 201910045716A CN 109779492 A CN109779492 A CN 109779492A
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Abstract
The invention provides a humidifying flame-retardant fireproof door which comprises a door body, a flame-retardant filling layer, a surface blocking layer, a liquid storage tank, a water outlet, a working cavity, a pipe body, a limiting layer, a sealing block, a sealing strip, a connecting rod, a movable rod, a rotating wheel, a spring, a liquid dividing tank, a liquid collecting port, a gauze layer and a liquid outlet tank. The invention can carry out all-around cooling on the surface of the fireproof door in actual use, so that the fireproof door cannot be burnt out by flame, the flame-retardant effect is better, and the practicability of the device is enhanced.
Description
Technical field
The present invention relates to fire resistant doorsets technical field more particularly to a kind of humidifying flame-retarded fire-proof doors.
Background technique
Fire resistant doorsets are for protecting when fire occurs within a certain period of time not by the sprawling of the intensity of a fire in escape route, to the greatest extent
It is possible to provide escape time for survivor, strive for rescue time for fire fighter, usual fire resistant doorsets are that resistance is covered with by surface
Made of the wooden or steel material for firing agent, the internal material usually using fire-proof and thermal-insulation slows down in the temperature of fire resistant doorsets
Lifting speed enables fire resistant doorsets to support a very long time that can just be burned out under the fierce intensity of a fire, but it is relatively violent in the intensity of a fire and
It is difficult in the case where putting out, common fire resistant doorsets temperature rises can quickly, it is difficult to strive for for a long time for survivor.
By patent retrieval, a kind of fire prevention with water circulation of existing Patent No. CN201810037477.5 disclosure of the invention
Door comprising: water pump is installed in water tank, water pump is connect with water inlet and water outlet respectively, and water outlet connects water circulation system,
The water circulation system other end connects water tank by circulating water pipe, and fire resistant doorsets side is connected by a hinge doorframe, installs on fire resistant doorsets
There are flame resistant glass and fire prevention handle, the fire resistant doorsets other side is connect by Fire-proof lock with doorframe, and door closer is equipped on doorframe and is prevented
Vent connection, technical problem to be solved by the invention is to provide a kind of fire resistant doorsets with water circulation, can pass through fire resistant doorsets
Interior water circulation system, fire occur when be fire resistant doorsets continued down, increase the heat resistance of fire resistant doorsets, extend fire resistant doorsets every
The hot time strives for the more time for survivor.
Based on foregoing description, and equipment in the prior art is combined to find that existing fire resistant doorsets are during use
When, fire resistant doorsets are usually made of stopping material or metal material with doorframe, when having fire generation, though prevention fire can be played
The effect of gesture sprawling and flue gas diffusion, but during fire resistant doorsets are contacted with flare for a long time, in common fire resistant doorsets temperature
Rise can quickly, though fire resistant doorsets under the fierce intensity of a fire can support a very long time can just be burned out, fire fighter or
When escape personnel touches fire resistant doorsets surface at this time, the temperature on fire resistant doorsets surface can be higher, cannot drop to fire resistant doorsets surface
Temperature, flame retardant effect is poor, has some limitations in actual use, therefore the design is directed to the above problem, designs one
Money is structurally reasonable, and functional good fire resistant doorsets, to improve practicability.
Summary of the invention
The purpose of the present invention is to provide a kind of humidifying flame-retarded fire-proof doors, to solve existing fire resistant doorsets in long-time and flare
During contact, the temperature on fire resistant doorsets surface can be higher, cannot cool down to fire resistant doorsets surface, flame retardant effect is poor, in reality
Border using when have some limitations the problem of.
The purpose and effect of humidifying flame-retarded fire-proof door of the present invention, are reached by technological means in detail below:
A kind of humidifying flame-retarded fire-proof door, this kind of humidifying flame-retarded fire-proof door include door body, and flame resistant filler layer, surface stops layer, liquid storage
Slot, water outlet, working chamber, tube body limit layer, sealing block, sealing strip, connecting rod, motion bar, runner, spring, liquid separation slot, liquid collecting
Mouthful, gauze layer and liquid outlet groove, being internally embedded for the door body are provided with flame resistant filler layer, and the rear and front end of the door body is close
It is fitted with surface and stops layer, the top opening of the door body has reservoir, and the lower left corner and the lower right corner of the reservoir are open
There is water outlet, the left and right side of the reservoir is fixedly installed with working chamber, and the outside of the working chamber is embedded in setting
There is tube body, the inner wall outside of the tube body is closely fitted with limit layer, is connected with sealing block in the limit layer, described close
It is closely fitted with sealing strip on the outside of envelope block, connecting rod is fixedly connected on the right side of the sealing block, the outside of the water outlet is tight
Close to be fitted with motion bar, the middle part rotated down of the motion bar is connected with runner, and the top right side of the motion bar is fixed to be connected
It is connected to spring, the left and right side at the top of the door body is fixedly installed with liquid separation slot, and the inside front of the liquid separation slot is opened
Mouth has liquid collection opening, and the lower inside of the liquid separation slot is closely fitted with gauze layer, and the bottom end of the liquid separation slot and outer middle side part are equal
Opening has liquid outlet groove.
Further, the tube body quantity in the working chamber is four, is in around the middle part of reservoir between eight tube bodies
It is symmetrical arranged.
Further, the tubular body is injected with carbon dioxide gas, and sealed end one end of the tube body is through setting
On door body surface, the open end of the tube body other end is through setting in working chamber.
Further, the inner wall of the sealing block and tube body mutually agrees with, and is in water between the sealing block and the inner wall of tube body
Square to being slidably connected.
Further, the other end of the connecting rod is fixedly connected with the upper left of motion bar.
Further, the upper opening of the reservoir has liquid filling hole, is embedded with sealing-plug in the liquid filling hole.
Further, the other end of the spring is fixedly mounted on the right side inner wall of working chamber, and the other end of motion bar
When not squeezing spring, another correct of motion bar is covered on water outlet.
Further, for the interior side-lower of the liquid separation slot there are one 55-60 ° of angle, the liquid outlet groove of the lower section is equal
Positioned at the inside of angle, the gauze layer is covered on above the liquid outlet groove of lower section.
Further, the left and right side of the working chamber is provided with deflector, and the deflector is arranged at water outlet
The outer side-lower of mouth, and the other end insertion of deflector is arranged in the liquid collection opening of liquid separation slot.
In comparison with existing structure, the invention has the following beneficial effects:
By being equipped with tube body, tubular body is injected with carbon dioxide gas, and sealed end one end of tube body is through setting in door body table
Face, the open end of the tube body other end, which is run through, to be arranged in working chamber, so that when fire resistant doorsets outgoing lights a fire calamity, the two of tubular body
Carbon oxide gas expanded by heating pushes the sealing block of tubular body mobile toward the open end of tube body, and the connecting rod made pushes motion bar
Rotation, allows motion bar to open water outlet, so that the water in reservoir in water outlet from flowing into liquid separation slot, water passes through later
Liquid separation slot slides from door body surface, and the surface flame-retardant layer in body surface face cools down on the door, so that device connects in long-time and flare
When touching, device meeting outflow water cools down in body surface face on the door, and by being equipped with liquid separation slot, there are one for the interior side-lower of liquid separation slot
55-60 ° of angle, the liquid outlet groove of lower section are respectively positioned on the inside of angle, and gauze layer is covered on above the liquid outlet groove of lower section, so that water
After being flowed into liquid separation slot in reservoir, the gauze layer above liquid outlet groove carries out certain Intercepting effects to water flow, when water arrives
Up to after certain liquid level, hydraulic pressure is increasing, and water can be also cross flowing out, on the door in the liquid outlet groove of gauze layer from below
Body surface face carries out comprehensive cooling effect, reduces the cooling dead angle on door body surface, enhances the practicability of device.
Detailed description of the invention
Fig. 1 is the whole positive structure schematic of the present invention；
Fig. 2 is the schematic diagram of the section structure on the right side of overall structure of the present invention；
Fig. 3 is working chamber partial enlargement structural representation of the present invention；
Fig. 4 is liquid separation slot partial structural diagram of the present invention；
Fig. 5 is sealing block partial structural diagram of the present invention；
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
1- door body, 101- flame resistant filler layer, the surface 102- stop layer, 2- reservoir, 201- water outlet, 3- working chamber, 301- pipe
Body, 302- limit layer, 303- sealing block, 304- sealing strip, 305- connecting rod, 306- motion bar, 307- runner, 308- spring, 4-
Liquid separation slot, 401- liquid collection opening, 402- gauze layer, 403- liquid outlet groove.
Specific embodiment
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention, it should be understood that specific embodiment described herein is used only for explaining the present invention, is not used to limit this
Invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
As shown in attached drawing 1 to attached drawing 5:
The present invention provides a kind of humidifying flame-retarded fire-proof door: this kind of humidifying flame-retarded fire-proof door includes door body 1, flame resistant filler layer 101, table
Face obstruction layer 102, reservoir 2, water outlet 201, working chamber 3, tube body 301, limit layer 302, sealing block 303, sealing strip 304,
Connecting rod 305, motion bar 306, runner 307, spring 308, liquid separation slot 4, liquid collection opening 401, gauze layer 402 and liquid outlet groove 403, door body
1 be internally embedded is provided with flame resistant filler layer 101, and the rear and front end of door body 1 is closely fitted with surface and stops layer 102, door body 1
Top opening have reservoir 2, the lower left corner and the lower right corner of reservoir 2, which are open, water outlet 201, the left side of reservoir 2 and
Right side is fixedly installed with working chamber 3, and the outside of working chamber 3, which is embedded in, is provided with tube body 301, and the inner wall outside of tube body 301 is tight
Closely connected conjunction has limit layer 302, limits in layer 302 and is connected with sealing block 303, the outside of sealing block 303 is closely fitted with close
Strip of paper used for sealing 304, the right side of sealing block 303 are fixedly connected with connecting rod 305, and the outside of water outlet 201 is closely fitted with motion bar 306,
The middle part rotated down of motion bar 306 is connected with runner 307, and the top right side of motion bar 306 is fixedly connected with spring 308, door
The left and right side at 1 top of body is fixedly installed with liquid separation slot 4, and the inside front of liquid separation slot 4, which is open, liquid collection opening 401, point
The lower inside of liquid bath 4 is closely fitted with gauze layer 402, and the bottom end of liquid separation slot 4 and outer middle side part are open and have liquid outlet groove 403.
Wherein, 301 quantity of tube body in working chamber 3 is four, is in around the middle part of reservoir 2 between eight tube bodies 301
It is symmetrical arranged, so that the sealed end of corresponding tube body 301 is heated when fire occurs for the side of door body 1, water in device is allowed to flow out
Cool down to the surface flame-retardant layer 102 on 1 surface of door body, so that device has the double-deck humidifying flame retardant effect.
Wherein, carbon dioxide gas is injected with inside tube body 301, sealed end one end of tube body 301 is through setting in door body 1
Surface, the open end of 301 other end of tube body, which is run through, to be arranged in working chamber 3, when so that the sealed end of tube body 301 is heated, in
The carbon dioxide gas in portion is heated to generate expansion, pushes the sealing block 303 inside tube body 301 mobile toward the open end of tube body 301,
The connecting rod 305 made pushes the motion bar 306 on runner 307 to rotate, and allows motion bar 307 to open water outlet 201, so that reservoir
To outflow, 1 surface of body cools down water in 2 on the door.
Wherein, sealing block 303 and the inner wall of tube body 301 mutually agree with, and are in water between sealing block 303 and the inner wall of tube body 301
Square to being slidably connected, so that gas can push interior sidesway of the sealing block 303 toward tube body when gas expansion inside tube body 301
It is dynamic, allow sealing block 303 that motion bar 306 is pushed to open the water outlet 201 of reservoir 2.
Wherein, the other end of connecting rod 305 is fixedly connected with the upper left of motion bar 306, so that two inside tube body 301
When the heated generation of carbon oxide gas expands, pushes the sealing block 303 inside tube body 301 mobile toward the open end of tube body 301, make
Connecting rod 305 pushes the motion bar 306 on runner 307 to rotate, and the water outlet 201 of reservoir 2 is opened.
Wherein, the upper opening of reservoir 2 has liquid filling hole, is embedded with sealing-plug in liquid filling hole, so that device can be by beating
It opens sealing-plug and adds water into reservoir 2.
Wherein, the other end of spring 308 is fixedly mounted on the right side inner wall of working chamber 3, and the other end of motion bar 306 does not have
When having extruding spring 308, another correct of motion bar 306 is covered on water outlet 201, so that when external flare is extinguished
Afterwards, due to the principle expanded with heat and contract with cold, the carbon dioxide gas pressure inside working chamber 3 becomes smaller, so that spring 308 pushes motion bar
306 restore to the original state, and allow one end of motion bar 306 to cover water outlet 201, so that water will not flow out again in reservoir 2.
Wherein, there are one 55-60 ° of angles, the liquid outlet groove 403 of lower section to be respectively positioned on angle for the interior side-lower of liquid separation slot 4
Inside, gauze layer 402 is covered on the top of liquid outlet groove 403 of lower section, so that the water in liquid separation slot 4 reaches certain liquid level
Later, hydraulic pressure can be increasing, and at this moment water can be also cross flowing out, to door body 1 in the liquid outlet groove 403 of gauze layer 402 from below
The surface flame-retardant layer 102 on surface carries out comprehensive cooling effect.
Wherein, the left and right side of working chamber 3 is provided with deflector, and deflector is arranged at the outside of water outlet 201
Lower section, and the other end insertion of deflector is arranged in the liquid collection opening 401 of liquid separation slot 4, so that water is flowed out from water outlet 201
Afterwards, it after can be by the water conservancy diversion of deflector, be entered in liquid separation slot 4 by liquid collection opening 401, so that water is oriented to door body 1 by liquid separation slot 4
Surface cools down to the surface flame-retardant layer 102 on 1 surface of door body.
The specifically used mode and effect of the present embodiment:
In the present invention, device is then mounted in wall by the integrality of guarantee apparatus function first, opens sealing-plug, toward storage
Suitable water is injected in liquid bath 2 covers tightly sealing-plug again, when fire occurs for the side of door body 1, the sealed end of tube body 301 is heated,
So that heated the opening toward tube body 301 of sealing block 303 for generating expansion, pushing inside tube body 301 of its internal carbon dioxide gas
Mouth end is mobile, and the connecting rod 305 made pushes the motion bar 306 on runner 307 to rotate, and motion bar 307 is allowed to open water outlet 201,
At this moment spring 308 compresses, so that the water in reservoir 2 flows into liquid separation slot 4 from water outlet 201, water is flowed from reservoir 2
After entering into liquid separation slot 4, the gauze layer 402 of 403 top of liquid outlet groove carries out certain Intercepting effects to water flow, when water reaches centainly
Liquid level after, water can simultaneously be flowed out from the liquid outlet groove 403 in left side, when hydraulic pressure is increasing, water can be also cross yarn
It is flowed out in the liquid outlet groove 403 of layer of cloth 402 from below, comprehensive cooling is carried out to the surface flame-retardant layer 102 on 1 surface of door body and is made
With so that device, when long-time is contacted with flare, device can flow out cooling water and cool down in body surface face on the door.
In conclusion although the present invention is described in detail referring to the foregoing embodiments, for the technology of this field
For personnel, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technology
Feature is equivalently replaced, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on, and
It should be included within protection scope of the present invention.
Claims (9)
1. a kind of humidifying flame-retarded fire-proof door, it is characterised in that: this kind of humidifying flame-retarded fire-proof door includes door body (1), flame resistant filler layer
(101), surface stops layer (102), reservoir (2), water outlet (201), working chamber (3), tube body (301), limits layer (302),
Sealing block (303), sealing strip (304), connecting rod (305), motion bar (306), runner (307), spring (308), liquid separation slot (4),
Liquid collection opening (401), gauze layer (402) and liquid outlet groove (403), being internally embedded for door body (1) are provided with flame resistant filler layer
(101), the rear and front end of the door body (1) is closely fitted with surface and stops layer (102), the top opening of the door body (1)
Have reservoir (2), the lower left corner and the lower right corner of the reservoir (2) are open and have water outlet (201), the reservoir (2)
Left and right side is fixedly installed with working chamber (3), and the outside of the working chamber (3), which is embedded in, to be provided with tube body (301), described
The inner wall outside of tube body (301) is closely fitted with limit layer (302), is connected with sealing block in the limit layer (302)
(303), it is closely fitted with sealing strip (304) on the outside of the sealing block (303), the right side of the sealing block (303) is fixed to be connected
It is connected to connecting rod (305), is closely fitted with motion bar (306) on the outside of the water outlet (201), in the motion bar (306)
It is rotatably connected to runner (307) below portion, the top right side of the motion bar (306) is fixedly connected with spring (308), the door
Left and right side at the top of body (1) is fixedly installed with liquid separation slot (4), and the inside front of the liquid separation slot (4) is open and has collection
The lower inside of liquid mouth (401), the liquid separation slot (4) is closely fitted with gauze layer (402), the bottom end of the liquid separation slot (4) with
Outer middle side part, which is open, liquid outlet groove (403).
2. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the tube body (301) in the working chamber (3)
Quantity is four, is symmetrical set in the middle part of reservoir (2) between eight tube bodies (301).
3. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: be injected with two inside the tube body (301)
Carbon oxide gas, through being arranged on door body (1) surface, tube body (301) other end is opened for sealed end one end of the tube body (301)
Mouth end is through setting in working chamber (3).
4. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the sealing block (303) and tube body (301)
Inner wall mutually agree with, be slidably connected in horizontal direction between the sealing block (303) and the inner wall of tube body (301).
5. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the other end of the connecting rod (305) and work
The upper left of lever (306) is fixedly connected.
6. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the upper opening of the reservoir (2) has
Liquid filling hole is embedded with sealing-plug in the liquid filling hole.
7. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the other end of the spring (308) is fixed
It is mounted on the right side inner wall of working chamber (3), and when the other end of motion bar (306) does not squeeze spring (308), motion bar
(306) another correct is covered on water outlet (201).
8. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the interior side-lower of the liquid separation slot (4) is deposited
In one 55-60 ° of angle, the liquid outlet groove (403) of the lower section is respectively positioned on the inside of angle, gauze layer (402) covering
Above the liquid outlet groove (403) of lower section.
9. humidifying flame-retarded fire-proof door according to claim 1, it is characterised in that: the left and right side of the working chamber (3)
It is provided with deflector, the deflector is arranged at the outer side-lower of water outlet (201), and the other end insertion of deflector is set
It sets in the liquid collection opening (401) of liquid separation slot (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045716.6A CN109779492B (en) | 2019-01-17 | 2019-01-17 | Humidifying flame-retardant fireproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045716.6A CN109779492B (en) | 2019-01-17 | 2019-01-17 | Humidifying flame-retardant fireproof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779492A true CN109779492A (en) | 2019-05-21 |
| CN109779492B CN109779492B (en) | 2020-06-12 |
Family
ID=66500978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910045716.6A Active CN109779492B (en) | 2019-01-17 | 2019-01-17 | Humidifying flame-retardant fireproof door |
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| Country | Link |
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| CN (1) | CN109779492B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644911A (en) * | 2019-10-23 | 2020-01-03 | 张�林 | Automatic closing and shading curtain |
| CN111335793A (en) * | 2020-04-01 | 2020-06-26 | 乐杰 | Access control system capable of automatically unlocking in case of fire |
| CN112360314A (en) * | 2020-10-28 | 2021-02-12 | 浙江振元安防科技有限公司 | High-efficient fire-retardant fire door that separates cigarette |
| CN112449981A (en) * | 2020-11-26 | 2021-03-09 | 于华来 | Gardens nursery stock cultivation securing device |
| CN112695944A (en) * | 2020-12-25 | 2021-04-23 | 平国文 | Curtain wall for constructional engineering |
| CN113389473A (en) * | 2021-06-28 | 2021-09-14 | 陈浩南 | High-efficient fire door that prevents keeping apart |
| CN114776186A (en) * | 2022-04-25 | 2022-07-22 | 重庆美迪智能家居股份有限公司 | Paint-free rubber wooden door structure with full core structure and processing technology |
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| EP1190825A2 (en) * | 2000-07-29 | 2002-03-27 | Ernst Nickel | Thin-walled three-dimensional molded semi-finished or finished article |
| KR20070005821A (en) * | 2005-07-06 | 2007-01-10 | 홍진석 | A fire door assembly, a fire door and a door frame |
| CN206846030U (en) * | 2017-06-11 | 2018-01-05 | 天津市津塘富源阀门有限公司 | It is a kind of that there is insulation, the valve of heat sinking function |
| CN108843210A (en) * | 2018-07-14 | 2018-11-20 | 唐珊珊 | A kind of Fireproof door structure |
| CN208203028U (en) * | 2018-05-03 | 2018-12-07 | 山东省产品质量检验研究院 | Multifunctional fire-proof door |
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| EP1190825A2 (en) * | 2000-07-29 | 2002-03-27 | Ernst Nickel | Thin-walled three-dimensional molded semi-finished or finished article |
| KR20070005821A (en) * | 2005-07-06 | 2007-01-10 | 홍진석 | A fire door assembly, a fire door and a door frame |
| CN206846030U (en) * | 2017-06-11 | 2018-01-05 | 天津市津塘富源阀门有限公司 | It is a kind of that there is insulation, the valve of heat sinking function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644911A (en) * | 2019-10-23 | 2020-01-03 | 张�林 | Automatic closing and shading curtain |
| CN111335793A (en) * | 2020-04-01 | 2020-06-26 | 乐杰 | Access control system capable of automatically unlocking in case of fire |
| CN112360314A (en) * | 2020-10-28 | 2021-02-12 | 浙江振元安防科技有限公司 | High-efficient fire-retardant fire door that separates cigarette |
| CN112449981A (en) * | 2020-11-26 | 2021-03-09 | 于华来 | Gardens nursery stock cultivation securing device |
| CN112695944A (en) * | 2020-12-25 | 2021-04-23 | 平国文 | Curtain wall for constructional engineering |
| CN113389473A (en) * | 2021-06-28 | 2021-09-14 | 陈浩南 | High-efficient fire door that prevents keeping apart |
| CN114776186A (en) * | 2022-04-25 | 2022-07-22 | 重庆美迪智能家居股份有限公司 | Paint-free rubber wooden door structure with full core structure and processing technology |
| CN114776186B (en) * | 2022-04-25 | 2024-03-29 | 重庆美迪智能家居股份有限公司 | Paint-free rubber wood door structure with full-core structure and processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109779492B (en) | 2020-06-12 |
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