CN113041535A - High-rise fire sprinkler with harmful gas absorption function - Google Patents
High-rise fire sprinkler with harmful gas absorption function Download PDFInfo
- Publication number
- CN113041535A CN113041535A CN202110255924.6A CN202110255924A CN113041535A CN 113041535 A CN113041535 A CN 113041535A CN 202110255924 A CN202110255924 A CN 202110255924A CN 113041535 A CN113041535 A CN 113041535A
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- side wall
- sliding block
- harmful gas
- spraying
- fixedly connected
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Biomedical Technology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a high-rise fire spraying device with a function of absorbing harmful gas, which comprises a spraying box body, wherein a water inlet is fixedly formed in the upper side wall of the spraying box body, a spraying head is fixedly connected to the lower side wall of the water inlet, a first rotating rod is rotatably connected to the inner side wall of the spraying head, the first rotating rod penetrates through the side wall of the spraying head and is rotatably connected with the side walls at two ends of the spraying box body, two treatment liquid storage boxes are symmetrically mounted on the inner side wall of the spraying box body, and air inlets are fixedly formed in the side walls of the two treatment liquid storage boxes. The invention realizes the tight dustproof function to the sprinkler head and the air inlet port when a fire disaster does not happen through the structural arrangement between the spring and the sliding block, and in addition, realizes the absorption function to harmful gas when the fire disaster happens by utilizing the water force of water liquid for fire extinguishment through the continuous impact water pressure action and the structural characteristics of the bevel gear when the fire disaster happens.
Description
Technical Field
The invention relates to the technical field of high-rise fire protection devices, in particular to a high-rise fire spraying device with a function of absorbing harmful gas.
Background
Along with the rapid development of urbanization and economy, the high-rise buildings are visible by naked eyes, a small number of fire incidents exist during office work of the high-rise buildings, although the fire incidents are accidental incidents, people need to pay certain attention to the fire incidents, and therefore the personal safety of people is guaranteed, and therefore, the installation of a fire treatment device with complete functions in the high-rise buildings is particularly important.
Through the retrieval, in the filing case that the notice number is CN109529237A, provided an install in high-rise extinguishing device of the convenient to use on roof, the power distribution box comprises a box body, the right-hand member fixed mounting of box has the handle, control panel's left side is reserved and is provided with the standing groove, the inside of landing leg is provided with the shrink pole, the inside pneumatic cylinder that is provided with of left end of box, the outside of female pole closely laminates and is provided with the solid fixed cylinder, the left end of female pole is connected with son pole, and the lower extreme fixed surface of female pole installs first installation piece, this high-rise extinguishing device, can be used for super high-rise building, the installation removes convenient and stable good with the roof, there is protector, and can fight a fire the multiaspect of floor, the.
When high-rise conflagration in the past takes place, can be because the response of fire detection system, thereby realized sprinkler's automatic process of going out water, at this in-process, thereby the emergence of conflagration can produce harmful gas and cause the harm to human health, in addition, when the device does not use, can have piling up of dust, thereby lead to causing the jam condition to inside delivery port, can lead to detection system's short circuit phenomenon because piling up in a large number of dust when more serious, then the condition that can't use appears when the conflagration takes place, for solving above-mentioned problem, a high-rise conflagration sprinkler with absorb harmful gas function has been provided.
Disclosure of Invention
The invention aims to solve the defects of single function and easy accumulation of dust to cause short circuit in the prior art, and provides a high-rise fire spraying device with a function of absorbing harmful gas.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high-rise conflagration sprinkler with absorb harmful gas function, includes sprays the box, the fixed water inlet of having seted up of lateral wall on spraying the box, the lower lateral wall fixedly connected with sprinkler head of water inlet, the inside wall of sprinkler head rotates and is connected with first rotation pole, first rotation pole runs through and rotates between the lateral wall of sprinkler head and the both ends lateral wall that sprays the box and is connected, the inside wall symmetry that sprays the box is installed two treatment fluid and is deposited the case, two the air inlet has been seted up to the lateral wall of treatment fluid deposit case is fixed.
Preferably, two first bevel gears are installed to the lateral wall symmetry of first dwang, and two bracing pieces, two are installed to the inside wall symmetry that sprays the box the lateral wall rotation of bracing piece is connected with the second dwang, bracing piece and the junction fixed mounting of second dwang have the spacing ring, spacing ring fixed mounting is in the lateral wall of second dwang, sliding connection carries out between the lateral wall of spacing ring and the inside wall of bracing piece, the lateral wall fixedly connected with second bevel gear of second dwang, mesh between second bevel gear and the first bevel gear, the lower lateral wall fixedly connected with fan of breathing in of second dwang.
Preferably, two air intakes, two are installed to the lower lateral wall symmetry of spraying the box the lateral wall fixedly connected with slider case of air intake, carry out fixed connection between the inside wall of slider case and the lateral wall of sprinkler head, the port department of sprinkler head, air intake and slider case is located the coplanar, the inside wall sliding connection of slider case has the sliding block, fixedly connected with spring between the inside wall of sliding block and the lateral wall of slider case, the lower lateral wall fixedly connected with guard shield of sliding block, closely support tightly with the port department of air intake and sprinkler head during the guard shield initial condition.
Preferably, the water passage of the sprinkler head is arranged in a discontinuous curved structure, and a water liquid filter screen is fixedly mounted on the lower side wall of the sprinkler head.
Preferably, the air inlet is arranged by adopting a one-way valve port, and the air inlet cannot circulate water liquid.
Preferably, the inner side wall of the air inlet is fixedly provided with a dust screen, and the dust screen opening is arranged in a small-hole high-density structure.
Preferably, the sliding block adopts the circular arc baffle setting, form triangular stable structure between the circular arc part ability of sliding block and the slider case deposit inner wall, the sliding block is provided with the stopper with the slip department that the slider case was deposited, stopper fixed connection is in the lateral wall of sliding block, carry out sliding connection between the inside wall of stopper and slider case deposit.
Preferably, the spring is in a stretching state all the time, and a rubber waterproof sleeve is sleeved on the outer side wall of the spring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the cooperation effect between the sprinkler head, the first rotating rod, the first bevel gear, the second bevel gear, the air suction fan and the protective baffle, when a fire occurs, high-speed water pressure starts to impact the protective baffle to pop out, at the moment, the port of the sprinkler head starts to be conducted, so that water is discharged through the gap of the sliding block without influencing the work of the air inlet port, in the process that the water passes through the inside of the water inlet, the water flushing baffle starts to rotate due to the instant water pressure impact force, so that the two first bevel gears fixedly connected with the side wall of the first rotating rod are driven to rapidly rotate, and because the first bevel gear and the second bevel gear are meshed with each other, when the first bevel gear rapidly rotates, the second bevel gear simultaneously rotates, so that the air suction fan is driven to rapidly rotate when the fire occurs, under the action of the air suction fan, harmful gas that the conflagration produced can receive the effect of the fan wind power of breathing in and get into and spray the box, through the impact water pressure effect that lasts when putting out a fire and the structural feature of bevel gear, the water power that utilizes water liquid to put out a fire has realized the absorption function to harmful gas when the conflagration takes place.
2. According to the invention, through the matching effect among the sprinkler head, the air inlet, the sliding block and the protective baffle, when a fire disaster does not happen, the inner side wall of the protective baffle can be tightly abutted against the sprinkler head and the port of the air inlet due to the fact that the spring is always in a stretching state, and meanwhile, due to the fact that the arc-shaped structure of the sliding block is arranged, a stable triangular clamping structure is formed between the sliding block and the sliding block storage box, so that the stability of the sliding block during sliding is guaranteed, the protective baffle is tightly fixed during non-sliding, and the tight dustproof function of the sprinkler head and the port of the air inlet is realized through the structural arrangement between the spring and the sliding block.
In summary, the present invention realizes the tight dustproof function to the sprinkler head and the air inlet port when a fire does not occur through the cooperation between the water-flushing baffle, the first rotating rod, the first bevel gear, the second bevel gear, the sliding block and the protective baffle and the structural arrangement between the spring and the sliding block, and in addition, realizes the absorption function to harmful gas when a fire occurs through the continuous impact water pressure effect during fire extinguishment and the structural characteristics of the bevel gear by using the water flushing force of water liquid for fire extinguishment.
Drawings
FIG. 1 is a schematic perspective view of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention;
FIG. 2 is a schematic plan view of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention when a fire is not occurring;
FIG. 3 is a schematic plan view of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention;
FIG. 4 is an enlarged view of the structure A of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention;
FIG. 5 is a schematic top view of a dust guard of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention;
fig. 6 is a schematic perspective view of a dust guard of a high-rise fire sprinkler with a function of absorbing harmful gas according to the present invention.
In the figure: 1 spraying box body, 2 water inlet, 3 spraying heads, 4 first rotating rod, 5 water flushing baffle, 6 treatment liquid storage box, 7 first bevel gear, 8 supporting rod, 9 second rotating rod, 10 second bevel gear, 11 air suction fan, 12 air inlet, 13 slide block storage box, 14 slide block, 15 spring, 16 protection baffle and 17 air inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a high-rise fire spraying device with a function of absorbing harmful gas comprises a spraying box body 1, wherein a water inlet 2 is fixedly formed in the upper side wall of the spraying box body 1, a spraying head 3 is fixedly connected to the lower side wall of the water inlet 2, a first rotating rod 4 is rotatably connected to the inner side wall of the spraying head 3, the first rotating rod 4 penetrates through the side wall of the spraying head 3 and is rotatably connected with the side walls of two ends of the spraying box body 1, two treatment liquid storage boxes 6 are symmetrically installed on the inner side wall of the spraying box body 1, and air inlets 17 are fixedly formed in the side walls of the two treatment liquid.
Two first bevel gears 7 are installed to the lateral wall symmetry of first dwang 4, two bracing pieces 8 are installed to the inside wall symmetry that sprays box 1, the lateral wall rotation of two bracing pieces 8 is connected with second dwang 9, bracing piece 8 and the junction fixed mounting of second dwang 9 have the spacing ring, spacing ring fixed mounting is in the lateral wall of second dwang 9, sliding connection carries out between the lateral wall of spacing ring and the inside wall of bracing piece 8, the lateral wall fixedly connected with second bevel gear 10 of second dwang 9, mesh between second bevel gear 10 and the first bevel gear 7, the lower lateral wall fixedly connected with fan of breathing in 11 of second dwang 9.
Two air inlets 12 are symmetrically arranged on the lower side wall of the spraying box body 1, the side walls of the two air inlets 12 are fixedly connected with a slider storage box 13, the inner side wall of the slider storage box 13 is fixedly connected with the outer side wall of the spraying head 3, the ports of the spraying head 3, the air inlets 12 and the slider storage box 13 are positioned on the same plane, the inner side wall of the slider storage box 13 is slidably connected with a sliding block 14, a spring 15 is fixedly connected between the inner side wall of the sliding block 14 and the side wall of the slider storage box 13, the lower side wall of the sliding block 14 is fixedly connected with a protective baffle 16, and the protective baffle 16 is tightly abutted against the ports of the air inlets 12 and the.
The water outlet of the sprinkler head 3 is arranged by adopting a discontinuous curved structure, and the lower side wall of the sprinkler head 3 is fixedly provided with a water liquid filter screen.
The air inlet 17 adopts the setting of check valve port, and the circulation of water liquid can't be carried out to air inlet 17.
The inside wall of the air inlet 12 is fixedly provided with a dust screen, and the opening of the dust screen is arranged in a small-hole high-density structure.
The spring 15 is in a stretching state all the time, and the outer side wall of the spring 15 is sleeved with a rubber waterproof sleeve.
The specific working principle of the invention is as follows:
when a fire disaster does not happen, the spring 15 is always in a stretching state, the inner side wall of the protective baffle 16 can tightly abut against the ports of the sprinkler head 3 and the air inlet 12, meanwhile, due to the arc-shaped structure of the sliding block 14, a stable triangular clamping structure is formed between the sliding block 14 and the sliding block storage box 13, so that the stability of the sliding block 14 during sliding and the tight fixation of the protective baffle 16 during non-sliding are guaranteed, and in the process, the tight dustproof function of the sprinkler head 3 and the port of the air inlet 12 during the non-fire disaster is realized through the structural arrangement between the spring 15 and the sliding block 14.
When a fire disaster occurs, the detection system detects the generation of an external fire source, the water control valve is opened through system control, high-speed water pressure starts to impact the protective baffle 16 to pop up, at the moment, the port of the sprinkler head 3 starts to be conducted, so that water is discharged through the gap of the sliding block 14 without influencing the work of the port of the air inlet 12, in the process that the water passes through the inside of the water inlet 2, the water impact baffle 5 starts to rotate due to the action of instant water pressure impact force, so that the rapid rotation of the two first bevel gears 7 fixedly connected with the side walls of the first rotating rod 4 is driven, because the first bevel gears 7 and the second bevel gears 10 are meshed with each other, when the first bevel gears 7 rotate rapidly, the second bevel gears 10 rotate simultaneously, so as to drive the air suction fan 11 to rotate rapidly when the fire disaster occurs, under the action of the air suction fan 11, harmful gas that the conflagration produced can receive the effect of the 11 wind forces of breathing in to get into and spray box 1, thereby realize the absorption to harmful gas, when harmful gas gets into and sprays box 1 inside, because the pressure effect of wind extrudees to inside, and because the one-way pneumatic valve setting of air inlet 17, harmful gas and air slowly get into in processing liquid deposit box 6 and mix with the inside reaction liquid of processing liquid deposit box 6 under the wind-force extrusion of constantly entering, thereby realize purifying action, in the above-mentioned process, through the impact water pressure effect that lasts when putting out a fire and bevel gear's structural feature, the water power that utilizes water liquid to put out a fire has realized the absorption function to harmful gas when the conflagration takes place.
Besides, through the curved structure setting of sprinkler head 3, through the curved structure setting from small to big, realized the reduction to the mouth of a river department pressure of sprinkler head 3, avoided the water liquid filter screen of 3 ports of sprinkler head to receive great water punching press and damage, spring 15 lateral wall cover is equipped with the waterproof cover of rubber, avoided having a small amount of water liquid to pass through sliding gap entering slider case 13 of slider 14 and slider case 13 when water liquid rushes out, thereby make spring 15 appear rusty phenomenon under the effect of air and moisture.
In summary, the present invention realizes the tight dust-proof function for the sprinkler head 3 and the air inlet 12 port when a fire does not occur through the structural arrangement between the spring 15 and the sliding block 14, and in addition, realizes the absorption function for harmful gas when a fire occurs by using the water force of water liquid to extinguish the fire through the continuous impact water pressure effect and the structural characteristics of the bevel gear when the fire is extinguished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a high-rise conflagration sprinkler with absorb harmful gas function, is including spraying box (1), its characterized in that, spray box (1) and go up the fixed water inlet (2) of having seted up of lateral wall, lower lateral wall fixedly connected with sprinkler head (3) of water inlet (2), the inside wall rotation of sprinkler head (3) is connected with first rotation pole (4), rotate between the lateral wall that first rotation pole (4) run through sprinkler head (3) and the both ends lateral wall that sprays box (1) and be connected, two treatment fluid deposit boxes (6), two are installed to the inside wall symmetry of spraying box (1) the air inlet (17) have been seted up fixedly to the lateral wall of treatment fluid deposit boxes (6).
2. A fire sprinkler system for high rise buildings with harmful gas absorption according to claim 1, it is characterized in that two first bevel gears (7) are symmetrically arranged on the side wall of the first rotating rod (4), two support rods (8) are symmetrically arranged on the inner side wall of the spraying box body (1), the side walls of the two support rods (8) are rotatably connected with a second rotating rod (9), a limiting ring is fixedly arranged at the joint of the supporting rod (8) and the second rotating rod (9), the limiting ring is fixedly arranged on the outer side wall of the second rotating rod (9), the outer side wall of the limiting ring is in sliding connection with the inner side wall of the supporting rod (8), a second bevel gear (10) is fixedly connected with the side wall of the second rotating rod (9), the second bevel gear (10) is meshed with the first bevel gear (7), and the lower side wall of the second rotating rod (9) is fixedly connected with an air suction fan (11).
3. A fire sprinkler system for high rise buildings with harmful gas absorption according to claim 2, it is characterized in that two air inlets (12) are symmetrically arranged on the lower side wall of the spraying box body (1), the side walls of the two air inlets (12) are fixedly connected with a sliding block storage box (13), the inner side wall of the slide block storage box (13) is fixedly connected with the outer side wall of the spray head (3), the ports of the spraying head (3), the air inlet (12) and the sliding block storage box (13) are positioned on the same plane, the inner side wall of the sliding block storage box (13) is connected with a sliding block (14) in a sliding way, a spring (15) is fixedly connected between the inner side wall of the sliding block (14) and the side wall of the sliding block storage box (13), the lower side wall of the sliding block (14) is fixedly connected with a protective baffle (16), and the protective baffle (16) is tightly abutted against the air inlet (12) and the port of the sprinkler head (3) in the initial state.
4. The high-rise fire sprinkler with the function of absorbing harmful gas as claimed in claim 1, wherein the water passage opening of the sprinkler head (3) is provided with a discontinuous curved structure, and the water liquid filter net is fixedly installed on the lower side wall of the sprinkler head (3).
5. The high-rise fire sprinkler with the function of absorbing harmful gas according to claim 1, characterized in that the air inlet (17) adopts a one-way valve port, and the air inlet (17) cannot be communicated with water.
6. The high-rise fire sprinkler with the function of absorbing harmful gas as claimed in claim 3, wherein the inner side wall of the air inlet (12) is fixedly provided with a dust screen, and the dust screen opening is arranged in a small-hole high-density structure.
7. The high-rise fire sprinkler with the function of absorbing harmful gas as claimed in claim 3, wherein the sliding block (14) is provided with a circular arc baffle, a triangular stable structure can be formed between the circular arc part of the sliding block (14) and the inner wall of the sliding block storage box (13), a limit block is arranged at the sliding position of the sliding block (14) and the sliding block storage box (13), the limit block is fixedly connected to the outer side wall of the sliding block (14), and the limit block is connected with the inner side wall of the sliding block storage box (13) in a sliding manner.
8. The high-rise fire sprinkler with function of absorbing harmful gas according to claim 3, characterized in that the spring (15) is always in tension, and the outer side wall of the spring (15) is sleeved with a rubber waterproof sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255924.6A CN113041535A (en) | 2021-03-09 | 2021-03-09 | High-rise fire sprinkler with harmful gas absorption function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255924.6A CN113041535A (en) | 2021-03-09 | 2021-03-09 | High-rise fire sprinkler with harmful gas absorption function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113041535A true CN113041535A (en) | 2021-06-29 |
Family
ID=76510667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110255924.6A Withdrawn CN113041535A (en) | 2021-03-09 | 2021-03-09 | High-rise fire sprinkler with harmful gas absorption function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113041535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952667A (en) * | 2021-10-19 | 2022-01-21 | 苏敏 | Domestic mixed foam type fire control shower nozzle |
| CN114109114A (en) * | 2021-12-07 | 2022-03-01 | 珠海市华特雅工业气体有限公司 | Household fire danger-avoiding cabin |
-
2021
- 2021-03-09 CN CN202110255924.6A patent/CN113041535A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952667A (en) * | 2021-10-19 | 2022-01-21 | 苏敏 | Domestic mixed foam type fire control shower nozzle |
| CN113952667B (en) * | 2021-10-19 | 2022-10-21 | 湖南东邦消防工程有限公司 | Domestic mixed foam type fire control shower nozzle |
| CN114109114A (en) * | 2021-12-07 | 2022-03-01 | 珠海市华特雅工业气体有限公司 | Household fire danger-avoiding cabin |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210629 |
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| WW01 | Invention patent application withdrawn after publication |