CN109681100A - If the door of fire-fighting fire extinguishing mechanism - Google Patents
If the door of fire-fighting fire extinguishing mechanism Download PDFInfo
- Publication number
- CN109681100A CN109681100A CN201811482401.XA CN201811482401A CN109681100A CN 109681100 A CN109681100 A CN 109681100A CN 201811482401 A CN201811482401 A CN 201811482401A CN 109681100 A CN109681100 A CN 109681100A
- Authority
- CN
- China
- Prior art keywords
- exhalant canal
- blind pipe
- fire
- door
- branch
- 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
-
- 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
- E06B5/161—Profile members therefor
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- 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
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Special Wing (AREA)
Abstract
The present invention relates to a kind of doors for setting fire-fighting fire extinguishing mechanism, wrapper sheet doorframe and door-plate, the branch exhalant canal being connected to equipped with total exhalant canal with total exhalant canal in door-plate, total exhalant canal is equipped with inlet opening, the inner surface of branch exhalant canal rear opening plate forms water outlet port, water outlet port is equipped with fire-fighting spraying head, the lower surface of the upper beam of doorframe is equipped with vertical slide opening, sealing slidably connects the blind pipe that ferromagnetic iron is made and the water inlet ring that sealing is slidably located on blind pipe in vertical slide opening, doorframe is equipped with the water inlet flow channel with water inlet ring connection, the inner peripheral surface of water inlet ring is equipped with water outlet, the circumferential surface of blind pipe is equipped with when blind pipe is inserted into the inlet opening with the via hole of water outlet connection, be equipped with that same blind pipe links together in the doorframe draws blind pipe to the drag-line in the slide opening.The present invention provides one kind to solve the problems, such as that existing door can not put out a fire with the door for setting fire-fighting fire extinguishing mechanism that the water system in fire-fighting system is attached.
Description
Technical field
The present invention relates to door more particularly to a kind of doors for setting fire-fighting fire extinguishing mechanism.
Background technique
The basic structure of door includes doorframe and the door-plate that is hinged on doorframe.Existing door has the disadvantage that can not
It is connected with the water system in fire-fighting system and puts out a fire to realize when fire generates.
Summary of the invention
The present invention provides what one kind can be attached with the water system in fire-fighting system to set fire-fighting fire extinguishing mechanism
Door, solves the problems, such as that existing door can not put out a fire.
The above technical problem is solved through the following technical scheme: a kind of door setting fire-fighting fire extinguishing mechanism, wrapper sheet doorframe
With the door-plate being hinged on doorframe, which is characterized in that be connected to equipped with total exhalant canal with total exhalant canal in the door-plate
Branch exhalant canal, total exhalant canal are equipped with the inlet opening of the upper surface of perforation door-plate, the branch exhalant canal rear opening plate
Inner surface form water outlet port, the water outlet port is equipped with fire-fighting spraying head, on the lower surface of the upper beam of the doorframe
Equipped with the vertical slide opening that can be aligned with the inlet opening, in the vertical slide opening sealing slidably connect ferromagnetic iron be made it is blind
Pipe and the water inlet ring that is slidably located on blind pipe of sealing, the doorframe are equipped with the water inlet flow channel with water inlet ring connection, it is described into
The inner peripheral surface of water ring is equipped with water outlet, is equipped in the inlet opening and adsorbs the blind pipe insertion inlet opening and make the same institute of blind pipe
The permanent magnet of outlet opening thereof is stated, the circumferential surface of the blind pipe is equipped with when blind pipe is inserted into the inlet opening with the water outlet
The via hole of connection, be equipped with that same blind pipe links together in the doorframe draws blind pipe to the drag-line in the slide opening.It uses
When, water inlet flow channel links together with the water system in fire-fighting system.When generating fire and door-plate and closing onto doorframe, into
Water hole is aligned with vertical slide opening, and blind pipe is inserted into two end entrances and makes via hole with apopore pair under the suction-operated of permanent magnet
Together, to realize total exhalant canal with water inlet ring connection, so that after the temperature of fire-fighting spraying head reaches opening temperature unlatching
Water is discharged from the outlet end of branch exhalant canal, to realize the sprinkling fire of fire resistant doorsets.When door opens, blind pipe is inside contracted in slide opening
It is interior.After blind pipe is inserted into inlet opening, blind pipe is pulled up by drag-line and realizes that blind pipe is extracted out of inlet opening, enables door of the invention
It is enough to meet the needs for repeatedly opening and closing.
Preferably, the applicator is accommodated in completely in the branch exhalant canal.It can be avoided fire-fighting spraying head quilt
I touches and broken damage.Safety is good.
Preferably, the outlet end for stating branch exhalant canal is equipped with branch exhalant canal portion major diameter section, the branch water outlet
Positioning step is formed between channel part major diameter section and branch exhalant canal, is equipped with and is shelved in branch exhalant canal portion major diameter section
Cover board on the positioning step.Cover board is gone out and water is discharged from door-plate by water flow after fire-fighting spraying head is opened.Into one
Step improves the protective action to fire-fighting spraying head.
Preferably, the cover board is metal structure.Heat when generating fire is enabled to be quickly transmitted to fire-fighting spray
Leaching head is to avoid the setting of cover board from causing to adsorb spray head response not in time.
Preferably branch exhalant canal sealing is connected with cover board as another, and the cover board is equipped at least three connected components
Exhalant canal is located at the through-hole of the thickness direction perforation cover board along cover board of cover board both ends part.Spray is adsorbed in the technical program
The water that head sprays is merely able to via through holes process, and flow becomes smaller pressure increase when water flow passes through through-hole, thus to water flow play pressurization,
The effect throttle, scattered.
Preferably, distance of the input end of the through-hole apart from cover plate central line is greater than the outlet end of through-hole apart from cover board
The distance of center line.Be able to ascend the water of ejection scatter and supercharging effect.
Preferably, the inlet opening is equipped with total exhalant canal portion major diameter section, total exhalant canal portion major diameter section and total
Carrying step is formed between exhalant canal, the permanent magnet is annular, and the permanent magnet is sealedly connected on the carrying step,
The permanent magnet is equipped with the sealing ring for being sealed connected together blind pipe and permanent magnet.It is convenient that permanent magnet is installed, blind pipe is inserted
It is convenient when the depth in total exhalant canal is positioned to enter.
Preferably, the permanent magnet is equipped with the sealing ring for being sealed connected together blind pipe and permanent magnet.It can prevent
Only blind pipe is attached upper leak with total exhalant canal and influences to be discharged hydraulic pressure.
Preferably, the outer peripheral surface of the blind pipe is equipped with the support ring circumferentially extended along blind pipe, the support ring is abutted
On the sealing ring blind pipe and permanent magnet are sealed connected together.Convenience when further being positioned by blind pipe
Property.
Preferably, being equipped with the limited step cooperated with the support ring in the vertical slide opening, the support ring is the same as described
The blind pipe is accommodated in completely in the vertical slide opening when limited step abuts together.
Preferably, being connected with angle pulley in the slide opening, the angle pulley supports the drag-line.It enables to
It is laborsaving when by drag-line promotion blind pipe.
The present invention, which has an advantage that, to carry out sprinkling fire when generating fire；Blind pipe can extract so that door-plate
It can easily be opened again after being finally closed.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 is the partial enlargement diagram at the A of Fig. 1.
Fig. 3 is the partial enlargement diagram at the B of Fig. 1.
Fig. 4 is the schematic diagram when cover board in embodiment two is projected along the extending direction of branch exhalant canal.
Fig. 5 is A-A schematic cross-section of Fig. 4.
In figure: doorframe 1, vertical slide opening 11, limited step 111, blind pipe 12, support ring 121, via hole 122, drag-line 13, water inlet
Ring 14, water inlet flow channel 15, water outlet 16, sealing ring 17, angle pulley 18, door-plate 2, total exhalant canal 21, branch exhalant canal 22,
Inlet opening 23, total exhalant canal portion major diameter section 231, fire-fighting spraying head 24, branch exhalant canal portion major diameter section 221, positioning step
222, cover board 25, through-hole 251, permanent magnet 26, drag-line hole 27.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and embodiments.
Embodiment one, referring to figure 1, figure 2 and figure 3, a kind of door setting fire-fighting fire extinguishing mechanism and are connected to door at wrapper sheet doorframe 1
Door-plate 2 on frame.If the branch exhalant canal 22 being connected to equipped with total exhalant canal 21 with total exhalant canal in door-plate.Total water outlet
Channel is equipped with the inlet opening 23 of perforation door-plate upper surface.The inner surface of branch exhalant canal rear opening plate.Branch exhalant canal goes out
Mouth end is equipped with fire-fighting spraying head 24.Total exhalant canal is equipped with the inlet opening 27 of the upper surface of perforation door-plate.It is equipped in inlet opening
Branch exhalant canal portion major diameter section 221.Positioning step 222 is formed between branch exhalant canal portion major diameter section and branch exhalant canal.Expenditure
The cover board 25 being shelved on positioning step is equipped in aquaporin portion major diameter section.Applicator is accommodated in completely in branch exhalant canal
And it is sheltered from by cover board.Cover board is metal structure.
Inlet opening is equipped with total exhalant canal portion major diameter section 231.Shape between total exhalant canal portion major diameter section and total exhalant canal
At carrying step.Permanent magnet 26 is connected on carrying step.Permanent magnet is annular.Permanent magnet is sealedly connected on carrying step.
Permanent magnet is equipped with sealing ring 17.The lower surface of the upper beam of doorframe is equipped with vertical slide opening 11.Sealing is slidably connected in vertical slide opening
There is the blind pipe 12 of upper end closed.The outer peripheral surface of blind pipe is equipped with the support ring 121 circumferentially extended along blind pipe.It was additionally provided on blind pipe
Hole 122.Blind pipe is made for ferromagnetic iron.Drag-line 13, water inlet ring 14 and angle pulley 18 are additionally provided in vertical slide opening.Drag-line one end
It is fixed on the cecum of blind pipe, stretches out the rear side of doorframe after the other end is supported on angle pulley through the drag-line hole 27 on doorframe
Face.Drag-line is for driving blind pipe to be retracted in vertical slide opening.Water inlet ring sealing is slidably located on blind pipe.Doorframe is equipped with water inlet
The water inlet flow channel 15 of ring connection.The inner peripheral surface of water inlet ring is equipped with water outlet 16.The limit cooperated with support ring is equipped in vertical slide opening
Position step 111.
In use, water inlet flow channel is connected to fire fighting supply pipeline.When door-plate is in the open state, above mentioned by drag-line
So that blind pipe is retracted to support ring and abuts together with limited step, blind pipe is accommodated in vertical slide opening completely at this time.It is fiery when generating
When calamity, door-plate is brought together into the state on doorframe in i.e. Fig. 1, and vertical slide opening is aligned with inlet opening at this time.It is blind under the action of permanent magnet
Pipe, which is inserted into two end entrances to be supported on sealing ring to support ring, makes blind pipe be docking together with the sealing of total exhalant canal, at this time
The upper end of blind pipe is still threaded through into water ring and via hole 122 and water outlet 16 are aligned, and the water of waterworks for firefighting reaches fire-fighting
Spray head, when temperature reaches the temperature of fire-fighting spraying head explosion, fire-fighting spraying head bursts, and water is sprayed through fire-fighting spraying head and pushed away
Plate uncap to realize sprinkling fire-distinguishing.When door is again turned on after closing, is above mentioned further through drag-line and blind pipe is made to be retracted to support
Ring abuts together with limited step.It is tight fit between blind pipe and slide opening.
Embodiment two, with the difference of embodiment one are as follows:
Cover board is that sealing is fixed in apopore.
Referring to fig. 4 and Fig. 5, cover board are circular.Cover board 25 is equipped at least three through-holes 251.Through-hole connection water outlet hole location
In cover board both ends part.Through-hole penetrates through cover board along the thickness direction of cover board.Distance of the input end of through-hole apart from cover plate central line
Greater than distance of the outlet end apart from cover plate central line of through-hole.
Claims (10)
1. a kind of door for setting fire-fighting fire extinguishing mechanism, wrapper sheet doorframe and the door-plate being hinged on doorframe, which is characterized in that the door-plate
The interior branch exhalant canal being connected to equipped with total exhalant canal with total exhalant canal, total exhalant canal are equipped with the upper of perforation door-plate
The inlet opening of end face, the inner surface of the branch exhalant canal rear opening plate form water outlet port, and the water outlet port, which is equipped with, to disappear
Anti- spray head, the lower surface of the upper beam of the doorframe are equipped with the vertical slide opening that can be aligned with the inlet opening, the perpendicular cunning
Sealing slidably connects the blind pipe that ferromagnetic iron is made and the water inlet ring that sealing is slidably located on blind pipe, the doorframe in hole
It is equipped with the water inlet flow channel with water inlet ring connection, the inner peripheral surface of the water inlet ring is equipped with water outlet, is equipped in the inlet opening
It adsorbs the blind pipe insertion inlet opening and makes blind pipe with the permanent magnet of the outlet opening thereof, the circumferential surface of the blind pipe is equipped with
Same blind pipe, which is equipped with, when blind pipe is inserted into the inlet opening with the via hole of water outlet connection, in the doorframe is connected to one
That rises draws blind pipe to the drag-line in the slide opening.
2. the door according to claim 1 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the applicator is accommodated in completely
In the branch exhalant canal.
3. the door according to claim 2 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the outlet end of the branch exhalant canal
It is equipped with branch exhalant canal portion major diameter section, forms positioning step between branch exhalant canal portion major diameter section and branch exhalant canal,
The cover board being shelved on the positioning step is equipped in branch exhalant canal portion major diameter section.
4. the door according to claim 3 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the cover board is metal structure.
5. the door according to claim 1 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the branch exhalant canal sealing is affixed
There is cover board, the cover board is passed through equipped with the thickness direction along cover board that at least three connected component exhalant canals are located at cover board both ends part
The through-hole of logical cover board.
6. the door according to claim 5 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the input end distance lid of the through-hole
The distance of plate center line is greater than distance of the outlet end of through-hole apart from cover plate central line.
7. the door according to claim 1 for setting fire-fighting fire extinguishing mechanism, which is characterized in that it is logical that the inlet opening is equipped with total water outlet
Road portion major diameter section, forms carrying step between total exhalant canal portion major diameter section and total exhalant canal, the permanent magnet is ring
Shape, the permanent magnet are sealedly connected on the carrying step, and the permanent magnet, which is equipped with, is tightly connected blind pipe and permanent magnet
Sealing ring together.
8. the door according to claim 7 for setting fire-fighting fire extinguishing mechanism, which is characterized in that the outer peripheral surface of the blind pipe is equipped with
Along the support ring of blind pipe circumferentially extending, the support ring is connected on the sealing ring and blind pipe and permanent magnet is tightly connected
Together.
9. the door according to claim 8 for setting fire-fighting fire extinguishing mechanism, which is characterized in that be equipped in the vertical slide opening with described
The limited step of support ring cooperation, the blind pipe is accommodated in institute completely when the support ring abuts together with the limited step
It states in vertical slide opening.
10. the door according to claim 1 for setting fire-fighting fire extinguishing mechanism, which is characterized in that be connected with commutation in the slide opening
Pulley, the angle pulley support the drag-line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482401.XA CN109681100B (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
| CN202010389220.3A CN111520044A (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482401.XA CN109681100B (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010389220.3A Division CN111520044A (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681100A true CN109681100A (en) | 2019-04-26 |
| CN109681100B CN109681100B (en) | 2021-01-01 |
Family
ID=66186466
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811482401.XA Active CN109681100B (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
| CN202010389220.3A Pending CN111520044A (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010389220.3A Pending CN111520044A (en) | 2018-12-05 | 2018-12-05 | Door with fire-fighting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109681100B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852293A (en) * | 2020-07-30 | 2020-10-30 | 南京工业职业技术学院 | Flowing water heat dissipation window |
| KR20210156496A (en) * | 2020-06-18 | 2021-12-27 | 주식회사 대광도어 | fire extinguishing system of fire doors |
| KR102348446B1 (en) * | 2021-06-30 | 2022-01-10 | (주)재원엔지니어링 | Firefighting device for entrance door by apartment house |
| KR20220075013A (en) * | 2020-11-26 | 2022-06-07 | 남양노비텍 주식회사 | Fire protection panel and Fire protection device using the fire protection panel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681100B (en) * | 2018-12-05 | 2021-01-01 | 吉安民辉新型材料有限公司 | Door with fire-fighting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3234968A1 (en) * | 1982-09-17 | 1984-03-22 | Ernst Wirz AG Kipper- und Maschinenfabrik, 8707 Uetikon | Fire door arrangement |
| CN2228122Y (en) * | 1995-01-16 | 1996-05-29 | 陈鸿团 | Water-filling fireproof door |
| CN107269196A (en) * | 2017-07-26 | 2017-10-20 | 南通苏通人防防护设备有限公司 | A kind of fire exit door with automatic fire-extinguishing function |
| KR101854657B1 (en) * | 2017-08-29 | 2018-05-03 | 주식회사 우담건축사사무소 | Fire door with preventing function for fire spreading in apartment houses |
| CN208123579U (en) * | 2018-03-25 | 2018-11-20 | 江苏特尔维斯智能科技有限公司 | A kind of fast turning on-off tap |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205516129U (en) * | 2016-04-27 | 2016-08-31 | 贵阳市烟草公司清镇市分公司 | Fire prevention system disappears |
| CN109681100B (en) * | 2018-12-05 | 2021-01-01 | 吉安民辉新型材料有限公司 | Door with fire-fighting mechanism |
-
2018
- 2018-12-05 CN CN201811482401.XA patent/CN109681100B/en active Active
- 2018-12-05 CN CN202010389220.3A patent/CN111520044A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3234968A1 (en) * | 1982-09-17 | 1984-03-22 | Ernst Wirz AG Kipper- und Maschinenfabrik, 8707 Uetikon | Fire door arrangement |
| CN2228122Y (en) * | 1995-01-16 | 1996-05-29 | 陈鸿团 | Water-filling fireproof door |
| CN107269196A (en) * | 2017-07-26 | 2017-10-20 | 南通苏通人防防护设备有限公司 | A kind of fire exit door with automatic fire-extinguishing function |
| KR101854657B1 (en) * | 2017-08-29 | 2018-05-03 | 주식회사 우담건축사사무소 | Fire door with preventing function for fire spreading in apartment houses |
| CN208123579U (en) * | 2018-03-25 | 2018-11-20 | 江苏特尔维斯智能科技有限公司 | A kind of fast turning on-off tap |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210156496A (en) * | 2020-06-18 | 2021-12-27 | 주식회사 대광도어 | fire extinguishing system of fire doors |
| KR102506913B1 (en) * | 2020-06-18 | 2023-03-07 | 주식회사 대광도어 | fire extinguishing system of fire doors |
| CN111852293A (en) * | 2020-07-30 | 2020-10-30 | 南京工业职业技术学院 | Flowing water heat dissipation window |
| KR20220075013A (en) * | 2020-11-26 | 2022-06-07 | 남양노비텍 주식회사 | Fire protection panel and Fire protection device using the fire protection panel |
| KR102497182B1 (en) * | 2020-11-26 | 2023-02-09 | 남양노비텍 주식회사 | Fire protection panel and Fire protection device using the fire protection panel |
| KR102348446B1 (en) * | 2021-06-30 | 2022-01-10 | (주)재원엔지니어링 | Firefighting device for entrance door by apartment house |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109681100B (en) | 2021-01-01 |
| CN111520044A (en) | 2020-08-11 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201214 Address after: 343200 Anfu county of Ji'an province Jiangxi City Industrial Park Applicant after: JIAN MIN-HUI NEW MATERIAL Co.,Ltd. Address before: No. 004, group 8, Xihu village, Xiapu Town, Tongshan County, Xianning City, Hubei Province Applicant before: Zheng Qionghua |
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| GR01 | Patent grant |