CN111991738A - Smoke exhaust device for fire engineering and using method thereof - Google Patents
Smoke exhaust device for fire engineering and using method thereof Download PDFInfo
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- CN111991738A CN111991738A CN202010878783.9A CN202010878783A CN111991738A CN 111991738 A CN111991738 A CN 111991738A CN 202010878783 A CN202010878783 A CN 202010878783A CN 111991738 A CN111991738 A CN 111991738A
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- pipe
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- 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
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- Chemical & Material Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a smoke exhaust device for fire fighting engineering and a using method thereof, belonging to the technical field of fire fighting equipment. This smoke exhaust device for fire engineering and application method thereof, through setting up transmission flabellum, fourth gear and exhaust fan leaf, make this smoke exhaust device when the conflagration breaing out, possess smog exhaust function, and smog is when burning, because the inside heat of dense smoke is higher, make smog can upwards float, this smoke exhaust device can effectually discharge dense smoke, make the on-the-spot people of conflagration be difficult for inhaling internally with more smog, the possibility that smog got into human respiratory tract and cause the injury to the human body has been reduced, effectual people's safety of having ensured.
Description
Technical Field
The invention belongs to the technical field of fire fighting equipment, and particularly relates to a smoke exhaust device for fire fighting engineering and a using method thereof.
Background
The smoke-preventing and exhausting system is composed of air-feeding and exhausting pipeline, pipe well, fire-resisting valve, door switch equipment and exhaust fan, etc. the smoke-discharging quantity of the mechanical smoke-discharging system and smoke-preventing subarea have direct relation, the smoke-preventing facilities of high-rise building can be divided into smoke-preventing facilities of mechanical pressure air-feeding and natural smoke-discharging facilities capable of opening external window, at present, because of the rapid development of Chinese economy, the high-rise building is more and more, when fire occurs, the probability of escaping from high-rise personnel is lower, and statistics shows that when fire occurs, the fire is directly burned off, but the dense smoke can cause huge harm to people, because the flame burns, a large amount of oxygen can be consumed, and a large amount of toxic smoke and heat can be exhausted, and the existing building fire-fighting equipment is only equipped with water-sprinkling equipment, the treatment efficiency for the dense smoke is lower, so that when fire occurs, the probability of escaping from people in the building is lower, it is difficult to ensure the safety of people.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, the invention provides a smoke exhaust device for fire engineering and a using method thereof, which solve the problems that the existing building fire-fighting equipment is only provided with water spraying equipment, the treatment efficiency of dense smoke is low, the probability of escape of people in a building is low, and the safety of people is difficult to guarantee due to the fact that a large amount of oxygen is consumed and a large amount of toxic smoke and heat are exhausted when flames are combusted.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a fume extractor for fire engineering and application method thereof, includes the sprinkler pipe, the left and right sides face of sprinkler pipe inner wall respectively with the left and right sides face fixed connection of support frame, fixedly connected with rotary mechanism in the support frame, rotary mechanism's top and bottom respectively with the lower surface of transmission flabellum and the last fixed surface of first gear be connected, first gear is connected with two second gear transmissions, two the equal fixedly connected with connecting rod of one side of keeping away from mutually of second gear, and the one end that two connecting rods kept away from mutually passes the bearing respectively with the opposite face fixed connection of two third gears.
As a further scheme of the invention: the third gear is meshed with the fourth gear, the lower surface of the fourth gear is fixedly connected with an exhaust fan blade, supporting rods are arranged on the left side surface and the right side surface of the exhaust fan blade, and one ends, far away from the supporting rods, of the two supporting rods are fixedly connected with the left side surface and the right side surface of the inner wall of the exhaust pipe respectively.
As a further scheme of the invention: the first gear, the second gear, the third gear and the fourth gear are all set to be bevel gears, the upper surfaces of the exhaust pipes are communicated with the lower surfaces of the sleeves, and the elbows and the tee joints are sleeved in the sleeves respectively.
As a further scheme of the invention: the upper surface of watering pipe is adjusted there is the sealing washer, the water injection pipe has been cup jointed in the sealing washer, the water injection pipe is linked together with external pond, the equal fixedly connected with elastic mechanism of the left and right sides face of water injection pipe, the bottom fixedly connected with seal block of elastic mechanism, and the lower surface of two seal blocks all with the upper surface overlap joint of sealing washer and watering pipe.
As a further scheme of the invention: sealed piece sets up to the sealed piece of elasticity, two the one side that the blast pipe was kept away from mutually respectively with the opposite face fixed connection of two fixed blocks, and the spout has all been seted up to the lower surface of two fixed blocks, the left surface fixed connection elastic component of spout inner wall, elastic component's right flank fixedly connected with handle.
As a further scheme of the invention: the right flank fixedly connected with fixture block of handle, the lower surface of fixture block and the lower surface overlap joint of ceiling, sprinkler pipe and blast pipe all set up to in the ceiling, the bearing sets up to sealed bearing.
As a further scheme of the invention: the lower surface of the first gear is fixedly connected with a transmission rod, the bottom end of the transmission rod is fixedly connected with a connecting block, the outer surface of the connecting block is provided with a plurality of water spray pipes, and the top ends of the water spray pipes are communicated with the lower surface of the cluster shell.
As a further scheme of the invention: a use method of a smoke exhaust device for fire engineering comprises the following steps:
s1, when the exhaust device needs to be installed, a worker is required to push the exhaust device to a preset through hole in a ceiling, the two clamping blocks move oppositely under the action of extrusion of the ceiling at the edge of the through hole, so that the elastic assembly slowly contracts under the extrusion of the clamping blocks, the worker only needs to align the two sleeves with the bottom ends of the tee joint and the elbow respectively at the moment, align the sealing ring with the water injection pipe and extrude the exhaust device upwards.
S2, when the staff cup joints the tee joint and the elbow respectively with two sleeves at this exhaust apparatus of installation outside, and when the sealing washer was connected with the water injection pipe, sealed piece will contact with the sprinkler pipe, and the staff only need last upwards to extrude the sprinkler pipe afterwards for two fixture blocks move to the top of ceiling, and two fixture blocks will be extruded respectively to two elastic component' S elasticity this moment, make two fixture blocks joint simultaneously on the ceiling.
S3, after the staff finishes this exhaust apparatus installation, just can open the water injection pipe, make this exhaust apparatus be in the trigger state, just can go to next floor afterwards and install this exhaust apparatus can, when the conflagration breaing out, rivers in the water injection pipe will be rushed fast and move to in the watering pipe, make transmission flabellum rotate fast under the effect of the impact of rivers fast flow, make first gear fast revolution under transmission flabellum' S rotation, it is rotatory that the transfer line will drive the watering pipe through the connecting block this moment, when rivers flow to the watering pipe bottom, will be intraductal along the shell of gathering a bundle entering watering, rivers will spray to the external world along the watering pipe this moment, thereby put out a fire.
S4, when the first gear is driven by water flow to rotate, the two second gears drive the third gear to rotate through the connecting rod, at the moment, the fourth gear is driven by the third gear to rotate, and external dense smoke enters the exhaust pipe under the rotation of the exhaust fan blade and is then discharged to the outside through the tee joint and the elbow.
S5, when the worker needs to take down the smoke exhaust device for cleaning or overhauling, the worker only needs to pull the handles on the two sides to move the handles on the two sides in opposite directions, and when the lower surface of the clamping block is separated from the upper surface of the ceiling, the worker can take down the smoke exhaust device.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the smoke exhaust device for the fire engineering and the use method thereof have the advantages that through the arrangement of the transmission fan blades, the first gear, the second gear, the third gear, the fourth gear and the exhaust fan blade, when the first gear rotates under the driving of water flow, the two second gears drive the third gear to rotate through the connecting rod, at the moment, the fourth gear rotates under the driving of the third gear, external dense smoke enters the exhaust pipe under the rotation of the exhaust fan blade and is then discharged to the outside through the tee joint and the elbow, so that the smoke exhaust device has the function of exhausting smoke when a fire disaster occurs, and the smoke can float upwards due to high heat inside the dense smoke when burning, the smoke exhaust device can effectively exhaust the dense smoke, so that people in the fire scene can not easily suck more smoke into the body, and the possibility of harm of the smoke to the human respiratory tract caused by the smoke entering the human body is reduced, the safety of people is effectively guaranteed.
2. This fume extractor for fire engineering and application method, through setting up transfer line and sprinkler pipe, when the conflagration breaing out, the intraductal rivers of water injection will gush fast to the sprinkler pipe in, make the transmission flabellum rotate fast under the effect of the fast flow impact force of rivers, the transfer line will drive the spray pipe rotation through the connecting block this moment, when the rivers flow to the sprinkler pipe bottom, will get into in the spray pipe along the shell tied in a bundle, rivers will spray to the external world along the spray pipe this moment, thereby put out a fire, make this fume extractor spray to the external world with water when, will disperse rivers, thereby put out a fire to cooling down to more region, effectual this fume extractor of having ensured can put out a fire to more region, when having improved this fume extractor suitability, its fire extinguishing effect has been ensured.
3. This smoke exhaust ventilator for fire engineering and application method thereof through setting up elastic mechanism, because elastic mechanism continuously extrudees the sprinkler pipe through sealed piece for the sprinkler pipe continuously receives the extrusion of top, when the effectual frictional force that increases between fixture block and the ceiling, makes the fixture block be difficult for breaking away from the ceiling, the effectual stability after ensuring this smoke exhaust ventilator installation, makes this smoke exhaust ventilator be difficult for droing.
Drawings
FIG. 1 is a schematic cross-sectional view of the front view of the present invention;
FIG. 2 is a schematic top view of the bundling shell according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of the present invention at A;
FIG. 4 is an enlarged schematic view of the present invention at B;
in the figure: the device comprises a sprinkler pipe 1, a support frame 2, a rotating mechanism 3, a transmission fan blade 4, a first gear 5, a second gear 6, a connecting rod 7, a bearing 8, a third gear 9, a fourth gear 10, a fan blade 11, a support rod 12, an exhaust pipe 13, a sleeve 14, an elbow 15, a sealing ring 16, a water injection pipe 17, a tee joint 18, an elastic mechanism 19, a sealing block 20, a fixing block 21, a sliding groove 22, an elastic assembly 23, a handle 24, a clamping block 25, a ceiling 26, a transmission rod 27, a connecting block 28, a water spray pipe 29 and a bundling shell 30.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 4, the present invention provides a technical solution: a smoke exhaust device for fire engineering comprises a sprinkling pipe 1, the left side surface and the right side surface of the inner wall of the sprinkling pipe 1 are respectively fixedly connected with the left side surface and the right side surface of a support frame 2, a rotating mechanism 3 is fixedly connected in the support frame 2, the top end and the bottom end of the rotating mechanism 3 are respectively fixedly connected with the lower surface of a transmission fan blade 4 and the upper surface of a first gear 5, the first gear 5 is in transmission connection with two second gears 6, the far sides of the two second gears 6 are respectively and fixedly connected with a connecting rod 7, the far ends of the two connecting rods 7 penetrate through a bearing 8 and are respectively and fixedly connected with the opposite surfaces of two third gears 9, the smoke exhaust device has the function of exhausting smoke when fire occurs by arranging the transmission fan blade 4, the third gear 9, the fourth gear 10 and an exhaust fan blade 11, and the smoke can float upwards due to the higher heat in the dense smoke when burning, this fume extractor can effectually discharge dense cigarette for the people at the scene of fire are difficult for inhaling internal more smog, have reduced smog and have got into human respiratory track and cause the possibility of injury to the human body, the effectual safety of guaranteeing people.
The first gear 5, the second gear 6, the third gear 9 and the fourth gear 10 are all set to be bevel gears, the upper surfaces of the two exhaust pipes 13 are communicated with the lower surface of the sleeve 14, and the exhaust device can exhaust gas extracted by the exhaust fan blade 11 to the outside due to the elbow 15 and the tee joint 18, so that the smoke concentration of a fire scene is reduced, the applicability of the smoke exhaust device is improved, and the elbow 15 and the tee joint 18 are respectively sleeved in the two sleeves 14.
The upper surface of sprinkler pipe 1 is adjusted there is sealing washer 16, water injection pipe 17 has been cup jointed in the sealing washer 16, water injection pipe 17 is linked together with external pond, the equal fixed connection elastic mechanism 19 of the left and right sides face of water injection pipe 17, the bottom fixedly connected with seal block 20 of elastic mechanism 19, and the lower surface of two seal blocks 20 all with the upper surface overlap joint of sealing washer 16 and sprinkler pipe 1, because of being provided with elastic mechanism 19, because elastic mechanism 19 lasts extrusion sprinkler pipe 1 through seal block 20, make sprinkler pipe 1 continuously receive the extrusion of top, when the effectual frictional force that increases between fixture block 25 and the ceiling 26, make fixture block 25 be difficult for breaking away from ceiling 26, the effectual stability after having ensured this fume extractor installation, make this fume extractor be difficult for droing.
Sealed piece 20 sets up to the sealed piece of elasticity, and the one side that two blast pipes 13 kept away from mutually respectively with two fixed block 21's opposite face fixed connection, and two fixed block 21's lower surface has all seted up spout 22, the left surface fixed connection elastic component 23 of spout 22 inner wall, elastic component 23's right flank fixed connection has handle 24.
Handle 24's right flank fixedly connected with fixture block 25, fixture block 25's lower surface and ceiling 26's lower surface overlap joint, sprinkler pipe 1 and blast pipe 13 all set up to in the ceiling 26, because of bearing 8 is sealed bearing for the rivers are difficult for spilling over in getting into sprinkler pipe 1 in the time, are external along the gap between bearing 8 and the sprinkler pipe 1, make this fume extractor when not starting, can effectually reduce the loss of water resource, and bearing 8 sets up to sealed bearing.
Lower fixed surface of first gear 5 is connected with transfer line 27, the bottom fixedly connected with connecting block 28 of transfer line 27, the surface of connecting block 28 is provided with a plurality of sprinkler pipe 1, because of being provided with transfer line 27 and sprinkler pipe 29, make this fume extractor spray water to external time, will disperse the rivers, thereby put out a fire to cooling down to more region, effectually ensured this fume extractor can put out a fire to more region, when having improved this fume extractor suitability, ensured its fire extinguishing effect, the top of a plurality of sprinkler pipe 1 all is linked together with the lower surface of shell 30 tied in a bundle.
A use method of a smoke exhaust device for fire engineering comprises the following steps:
s1, when the exhaust device needs to be installed, a worker is required to push the exhaust device to a preset through hole in the ceiling 26, and when the two clamping blocks 25 move oppositely under the extrusion effect of the ceiling 26 at the edge of the through hole, the elastic component 23 slowly contracts under the extrusion of the clamping blocks 25, at the moment, the worker only needs to align the two sleeves 14 with the bottom ends of the tee joint 18 and the elbow 15 respectively, align the sealing ring 16 with the water injection pipe 17, and extrude the exhaust device upwards.
S2, when installing the exhaust device, the worker connects the two sleeves 14 to the tee joint 18 and the elbow 15 respectively, and the sealing ring 16 is connected with the water injection pipe 17, the sealing block 20 will contact with the sprinkler pipe 1, and then the worker only needs to continuously and upwardly extrude the sprinkler pipe 1, so that the two fixture blocks 25 move to the top of the ceiling 26, and at the moment, the elastic force of the two elastic components 23 respectively extrudes the two fixture blocks 25, so that the two fixture blocks 25 are simultaneously clamped on the ceiling 26.
S3, after the staff finishes this exhaust apparatus installation, just can will open water injection pipe 17, make this exhaust apparatus be in the trigger state, just can go to next floor afterwards and install this exhaust apparatus can, when the conflagration breaing out, rivers in the water injection pipe 17 will be gushed fast and move to in the sprinkler pipe 1, make transmission flabellum 4 rotate fast under the effect of the impact of rivers fast flow, make first gear 5 rotate fast under transmission flabellum 4' S rotation, transfer line 27 will drive sprinkler pipe 1 rotatory through connecting block 28 this moment, when rivers flow to sprinkler pipe 1 bottom, will follow shell 30 of gathering a bundle and get into in the spray pipe 29, rivers will spray to the external world along spray pipe 29 this moment, thereby put out a fire.
S4, when the first gear 5 is driven by water flow to rotate, the two second gears 6 will drive the third gear 9 to rotate through the connecting rod 7, and at this time, the fourth gear 10 will be driven by the third gear 9 to rotate, and the external dense smoke will enter the exhaust pipe 13 under the rotation of the exhaust fan blade 11, and then be exhausted to the outside through the tee joint 18 and the elbow 15.
S5, when the worker needs to take down the smoke exhaust device for cleaning or maintenance, the worker only needs to pull the handles 24 on the two sides to move the handles 24 on the two sides in the opposite direction, and when the lower surface of the fixture block 25 is separated from the upper surface of the ceiling 26, the worker can take down the smoke exhaust device.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (8)
1. The utility model provides a smoke exhaust apparatus for fire engineering, includes sprinkler pipe (1), its characterized in that: the utility model discloses a sprinkler pipe, including sprinkler pipe (1), support frame (2), first gear (5) and two second gears (6), the left and right sides face of sprinkler pipe (1) inner wall respectively with the left and right sides face fixed connection of support frame (2), fixedly connected with rotary mechanism (3) in support frame (2), the top and the bottom of rotary mechanism (3) respectively with the lower surface of transmission flabellum (4) and the last fixed surface of first gear (5) be connected, two the equal fixedly connected with connecting rod (7) in the one side of keeping away from mutually of second gear (6), and the one end that two connecting rod (7) kept away from mutually passes bearing (8) respectively with the opposite face fixed connection of two third gears (9).
2. A smoke extractor for fire engineering according to claim 1, wherein: the third gear (9) is meshed with the fourth gear (10), the lower surface of the fourth gear (10) is fixedly connected with a fan exhaust blade (11), supporting rods (12) are arranged on the left side surface and the right side surface of the fan exhaust blade (11), and one ends, far away from the supporting rods (12), of the two supporting rods are fixedly connected with the left side surface and the right side surface of the inner wall of the exhaust pipe (13) respectively.
3. A smoke extractor for fire engineering according to claim 2, wherein: the exhaust pipe is characterized in that the first gear (5), the second gear (6), the third gear (9) and the fourth gear (10) are all set to be bevel gears, the upper surface of the exhaust pipe (13) is communicated with the lower surface of the sleeve (14), and the sleeve (14) is sleeved with an elbow (15) and a tee joint (18) respectively.
4. A smoke extractor for fire engineering according to claim 1, wherein: the upper surface of watering pipe (1) is adjusted and is had sealing washer (16), water injection pipe (17) have been cup jointed in sealing washer (16), water injection pipe (17) are linked together with external pond, the equal fixedly connected with elastic mechanism (19) of the left and right sides face of water injection pipe (17), the bottom fixedly connected with seal block (20) of elastic mechanism (19), and the lower surface of two seal blocks (20) all with the upper surface overlap joint of sealing washer (16) and watering pipe (1).
5. A smoke extractor for fire engineering according to claim 4, characterized in that: sealed piece (20) set up to the sealed piece of elasticity, two the one side of keeping away from mutually in blast pipe (13) respectively with the opposite face fixed connection of two fixed blocks (21), and spout (22) have all been seted up to the lower surface of two fixed blocks (21), the left surface fixed connection elastic component (23) of spout (22) inner wall, the right flank fixedly connected with handle (24) of elastic component (23).
6. A smoke extractor for fire engineering according to claim 5, characterized in that: the right flank fixedly connected with fixture block (25) of handle (24), the lower surface of fixture block (25) and the lower surface overlap joint of ceiling (26), sprinkler pipe (1) and blast pipe (13) all set up to in ceiling (26), bearing (8) set up to sealed bearing.
7. A smoke extractor for fire engineering according to claim 1, wherein: the lower surface fixedly connected with transfer line (27) of first gear (5), the bottom fixedly connected with connecting block (28) of transfer line (27), the surface of connecting block (28) is provided with a plurality of spray pipe (29), a plurality of the top of spray pipe (29) all is linked together with the lower surface of shell (30) tied in a bundle.
8. The use method of the smoke exhaust device for the fire engineering is characterized by comprising the following steps: use of a smoke evacuation system for fire fighting engineering according to any of claims 1 to 7, comprising the steps of:
s1, when the exhaust device needs to be installed, a worker is required to push the exhaust device to a preset through hole in a ceiling (26), the two clamping blocks (25) move oppositely under the extrusion effect of the ceiling (26) at the edge of the through hole, so that the elastic component (23) slowly contracts under the extrusion of the clamping blocks (25), the worker only needs to align the two sleeves (14) with the bottom ends of the tee joint (18) and the elbow (15) respectively at the moment, align the sealing ring (16) with the water injection pipe (17), and extrude the exhaust device upwards.
S2, when installing this exhaust apparatus of staff and cup jointing tee bend (18) and elbow (15) respectively with two sleeves (14) outside, and when sealing washer (16) were connected with water injection pipe (17), sealed piece (20) will contact with sprinkler pipe (1), the staff only need last upwards extrude sprinkler pipe (1) afterwards, make two fixture blocks (25) remove the top to ceiling (26), the elasticity of two elastic component (23) will extrude two fixture blocks (25) respectively this moment, make two fixture blocks (25) joint simultaneously on ceiling (26).
S3, after the staff finishes the installation of this exhaust apparatus, just can open water injection pipe (17), make this exhaust apparatus be in the trigger state, just can go to next floor afterwards and install this exhaust apparatus can, when the conflagration breaing out, rivers in water injection pipe (17) will be gushed fast and move to in watering pipe (1), make transmission flabellum (4) rotate fast under the effect of the impact force that flows fast of rivers, make first gear (5) rotate fast under the rotation of transmission flabellum (4), transfer line (27) will drive watering pipe (1) rotation through connecting block (28) this moment, when rivers flow to watering pipe (1) bottom, will get into in watering pipe (29) along shell (30) tied in a bundle, rivers will spray to the external world along watering pipe (29) this moment, thereby put out a fire.
S4, when the first gear (5) is driven by water flow to rotate, the two second gears (6) drive the third gear (9) to rotate through the connecting rod (7), the fourth gear (10) is driven by the third gear (9) to rotate, external dense smoke enters the exhaust pipe (13) under the rotation of the exhaust fan blade (11), and then is discharged to the outside through the tee joint (18) and the elbow (15).
S5, when the worker needs to take down the smoke exhaust device for cleaning or maintenance, the worker only needs to pull the handles (24) on the two sides to enable the handles (24) on the two sides to move in opposite directions, and when the lower surface of the clamping block (25) is separated from the upper surface of the ceiling (26), the worker can take down the smoke exhaust device.
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| CN202010878783.9A CN111991738B (en) | 2020-08-27 | 2020-08-27 | Smoke exhaust device for fire engineering and using method thereof |
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| CN202010878783.9A CN111991738B (en) | 2020-08-27 | 2020-08-27 | Smoke exhaust device for fire engineering and using method thereof |
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| CN113389249A (en) * | 2021-06-17 | 2021-09-14 | 无锡市城乡给排水工程设计院有限责任公司 | Air circulation device in secondary water supply stainless steel water tank |
| CN114146341A (en) * | 2021-10-28 | 2022-03-08 | 烟台南山学院 | Fire fighting device capable of supplying water at sustainable high pressure |
| CN114470580A (en) * | 2022-01-18 | 2022-05-13 | 广东广新信息产业股份有限公司 | Compound multi-functional intelligent fire-fighting robot |
| CN115105769A (en) * | 2022-05-25 | 2022-09-27 | 山东正晨科技股份有限公司 | Tunnel intelligent fire monitor system |
| CN117462902A (en) * | 2023-12-27 | 2024-01-30 | 山西一建集团有限公司 | Spraying fire extinguishing device for temporary construction office |
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