CN112263795B

CN112263795B - Automatic smoke suction device for pushing door of fire-fighting fireproof door

Info

Publication number: CN112263795B
Application number: CN202011106859.2A
Authority: CN
Inventors: 喻贞烈
Original assignee: Shandong Zhonghao Holdings Group Co ltd
Current assignee: Shandong Zhonghao Holdings Group Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-09-13
Anticipated expiration: 2040-10-16
Also published as: CN112263795A

Abstract

The invention relates to the technical field of fire-fighting equipment and discloses an automatic smoke absorption device for a pushing door of a fire-fighting fireproof door. According to the invention, the fireproof air bag is arranged, when a fireproof door is pushed open, the fireproof air bag expands outwards, the piston plate moves backwards, negative pressure backflow is formed in the inner cavity of the door leaf, thick smoke near the door leaf is sucked, and the problem that a disaster-stricken person sucks a large amount of thick smoke to cause difficulty in breathing and visual line obstruction is avoided.

Description

Automatic smoke suction device for pushing door of fire-fighting fireproof door

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to an automatic smoke suction device for a pushing door of a fire-fighting fireproof door.

Background

The fire-fighting fireproof door is a special door which can isolate a fire source and prevent the spread of fire in a certain time so as to ensure that people suffering from a disaster have an opportunity to escape, is mainly formed by combining fireproof door leaves, door frames, hardware fittings and the like, and is widely used at escape intersections such as stair crossings, corridor passages and the like.

When a fire disaster occurs, a person in the fire disaster pushes away the fire door by twisting the upper door handle, so as to escape into a stair way or an escape passage, but when the fire disaster spreads to the vicinity of the fire door, the person in the fire disaster pushes away the fire door, because the temperature outside the door is higher and the pressure is higher than the pressure inside the door, when the door is opened, negative pressure is generated inside the door to suck smoke and sparks outside the door into the stair way or the escape passage, so that the smoke is diffused to pollute the non-fire area, the door leaf and the door frame are only connected through the hinge, when the door is opened, the hinge is opened, a large-area gap is leaked between the door leaf and the door frame, the smoke can permeate from the gap, so that the person in the fire disaster inhales a large amount of smoke instantly when the person pushes away the door to escape, so as to cause unsmooth breathing and sight obstruction, in addition, the fire-fighting fire door is generally provided with a fire door closer and a fire-protection sequencer, and when the person in the fire disaster is loosened and escapes, prevent that fire door can reset according to the precedence order automatically and close left and right sides door leaf, if the burning intensity of a fire spreads sooner, when preventing fire door self-closing, the flame can scurry into along the crack, leaves the potential safety hazard in stairway or escape way.

Disclosure of Invention

Aiming at the defects of the existing fire-fighting fireproof door in the use process, the invention provides the push door automatic smoking device for the fire-fighting fireproof door, which has the advantages that the fire-fighting fireproof door automatically smokes smoke when the door is pushed, the fire-fighting fireproof door automatically extinguishes fire when the door is closed, and flame is prevented from entering, and the technical problems in the background art are solved.

The invention provides the following technical scheme: the utility model provides a fire control prevents fire door and pushes away automatic smoking device of door, includes the door frame, both ends fixed mounting has the hinge about the inboard of door frame, the one end fixed mounting of hinge has the door leaf, the inboard fixed mounting of hinge has the fire prevention gasbag that is located between door frame and the door leaf, the middle part both sides movable mounting of door leaf has the fire prevention handle, both ends movable mounting has two piston plates about the inner chamber of door leaf, both ends movable mounting has two check valves of breathing in about one side of door leaf, the fixed cover of inner chamber upper portion bottom and lower part top of door leaf has two breather pipes, two one end movable mounting of breather pipe has the exhaust check valve, the inner chamber of breather pipe has two piston rods respectively movable mounting, two one end fixed connection of piston rod has the clamp plate, the inboard fixed mounting of clamp plate has the fire prevention capsule, five check valves are fixed mounting in the positive middle part of fire prevention capsule, five one-way valve's one end fixed mounting has the nozzle, one side of breather pipe is fixed to be cup jointed the blast pipe.

Preferably, the fireproof air bag is provided with folds at two ends and has ductility.

Preferably, the inner wall of one side of the upper end and the lower end of the inner cavity of the door leaf is provided with a hole, and the hole penetrates through the inner wall of one side of the door leaf, one side of the hinge and one side of the fireproof airbag.

Preferably, the interior of the fire-proof capsule is filled with fire-extinguishing dry powder.

The invention has the following beneficial effects:

1. the invention arranges the fire-proof air bag between the hinges, when a fire disaster occurs and a person in the fire disaster pushes away the fire door, the fire-proof air bag expands outwards and absorbs air close to the cavity at one side of the piston plate through the hole wall of the inner cavity of the door leaf, when the air volume is reduced, the piston plate moves backwards, the cavity at the other side of the piston plate increases in volume, the pressure intensity is reduced, and pressure difference is generated with the outside, the air at the outer side of the door leaf extrudes the air suction one-way valve to open the valve, the inner cavity of the door leaf forms negative pressure backflow to begin to absorb dense smoke near the door leaf, thereby realizing that the door leaf can automatically absorb the dense smoke brought by the person in the fire disaster when pushing away, further preventing the dense smoke from diffusing, effectively protecting the safety of the person in the fire disaster and the unburnt area, when the person in the fire disaster pushes away the fire door, the hinges are in a continuous opening state, therefore, the fire-proof air bag also keeps in an expansion state all the time, and the air bag is heated to expand, so that a gap between the door jamb and the door leaf can be tightly filled, and dense smoke is prevented from permeating into a stair way or an escape channel from the gap when the door is opened, the air quality of the escape environment is polluted, and a disaster-stricken person inhales a large amount of dense smoke when pushing the door, so that the breathing difficulty and the sight line obstruction are caused.

2. The invention adopts the ventilation pipe, when the fireproof door is automatically reset, the fireproof air bag is extruded by two sides of the hinge, the volume begins to shrink, the gas in the bag is discharged into the cavity of the door leaf through the hole wall, the air extrudes the piston plate, the volume of the cavity at one side of the piston plate begins to expand, the volume of the cavity at the other side begins to reduce, when the air suction one-way valve is closed, the dense smoke absorbed in the cavity is extruded into the ventilation pipe by the pressure caused by the movement of the piston plate, the dense smoke enters the ventilation pipe, the piston rod is extruded downwards, the pressing plate extrudes the fireproof capsule up and down through the piston rod, when the fireproof capsule is pressurized, the dry powder in the fireproof capsule is rapidly extruded into the nozzle and is sprayed to the periphery of the fireproof door through the nozzle, the burning of the fire nearby the fireproof door is prevented, the fire spreading caused by the fire fleeing when the fireproof door is reset and closed in a staggered way, and the potential safety hazard is left in a stair way or an escape passage, in addition, when the piston rod is pressed down by the dense smoke, if the piston rod descends to the lower part of the exhaust pipe opening, the dense smoke is discharged from the exhaust pipe and discharged to a fire burning area, the sucked dense smoke is prevented from entering a stair way or an escape channel, when the dense smoke is discharged to a certain amount, the pressure at the top end of the piston rod is reduced, and the piston rod is reset again, so that the dense smoke can be recycled.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the door/window of the present invention;

FIG. 3 is a perspective view of a fire-resistant capsule of the present invention;

FIG. 4 is a perspective view of the fire protection airbag of the present invention.

In the figure: 1. a door jamb; 2. a hinge; 3. a door leaf; 4. a fire-proof air bag; 5. a fire-proof handle; 6. a piston plate; 7. an air suction check valve; 8. a breather pipe; 9. an exhaust check valve; 10. a piston rod; 11. pressing a plate; 12. a fire-proof capsule; 13. a one-way valve; 14. a nozzle; 15. and (4) exhausting the gas.

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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-4, an automatic smoking device for a fire-fighting fireproof door sliding door comprises a door jamb 1, hinges 2 are fixedly installed at the upper and lower ends of the inner side of the door jamb 1, a door leaf 3 is fixedly installed at one end of the hinges 2, a fireproof airbag 4 positioned between the door jamb 1 and the door leaf 3 is fixedly installed at the inner side of the hinges 2, when the hinges 2 are in a continuously opened state, the fireproof airbag 4 can be kept in an extended state, and the fireproof airbag 4 is heated to expand to tightly fill a gap between the door jamb 1 and the door leaf 3, so that when the door is opened, dense smoke permeates into a stair way or an escape channel from the gap to pollute the air quality of an escape environment, and cause people suffering from disasters to inhale a large amount of dense smoke when sliding the door, thereby causing difficulty in breathing and obstruction of sight, fireproof handles 5 are movably installed at the two sides of the middle part of the door leaf 3, and two piston plates 6 are movably installed at the upper and lower ends of an inner cavity of the door leaf 3, two air suction one-way valves 7 are movably installed at the upper end and the lower end of one side of the door leaf 3, when a disaster-stricken person pushes away a fireproof door, the fireproof air bag 4 expands outwards and penetrates through an opening on the inner cavity wall of the door leaf 3, the fireproof air bag 4 sucks air in a cavity at one side of the piston plate 6, when the air volume is reduced, the piston plate 6 backs backwards, the cavity at the other side of the piston plate 6 begins to increase in volume, the pressure intensity is reduced, pressure difference is generated between the air and the outside of the door leaf 3, the air outside the door leaf 3 extrudes the air suction one-way valve 7 to open the valve, negative pressure backflow is formed in the inner cavity of the door leaf 3, and thick smoke nearby the door leaf 3 begins to be sucked, so that when the door is pushed, the door leaf 3 can automatically suck the thick smoke brought by the disaster-stricken person when the disaster-stricken person pushes away, the thick smoke is prevented from being diffused, the safety of the disaster-stricken person and the safety of an unburning area are effectively protected, two vent pipes 8 are fixedly sleeved at the bottom end and the top end of the upper part of the inner cavity of the door leaf 3, an exhaust check valve 9 is movably arranged at one end of each of the two vent pipes 8, the exhaust check valve 9 can be automatically opened when being pressed by thick smoke, two piston rods 10 are respectively and movably arranged in the inner cavities of the vent pipes 8, one end of each of the two piston rods 10 is fixedly connected with a pressing plate 11, a fireproof capsule 12 is fixedly arranged on the inner side of the pressing plate 11, five check valves 13 are fixedly arranged in the middle of the front surface of the fireproof capsule 12, one ends of the five check valves 13 are fixedly provided with nozzles 14, when the fireproof door is automatically reset, the fireproof airbag 4 is pressed by the pressing force at the two sides of the hinge 2, the volume begins to shrink, the gas in the capsule is discharged into the cavity of the door leaf 3 through the opening, the air presses the piston plate 6, the volume of the cavity at one side of the piston plate 6 begins to expand, the volume of the cavity at the other side begins to reduce, the thick smoke sucked in the cavity is squeezed into the vent pipes 8 by the pressure caused by the movement of the piston plate 6, dense smoke enters the vent pipe 8, the piston rod 10 is extruded downwards, the pressing plate 11 is enabled to extrude the fireproof capsule 12 up and down through the piston rod 10, when the fireproof capsule 12 is pressurized, dry powder in the fireproof capsule is extruded into the nozzle 14 rapidly and sprayed to the periphery of the fireproof door through the nozzle 14, the fire nearby the fireproof door is prevented from being ignited, the fire spreading caused by fire spreading due to fire spreading when the fireproof door is reset and closed in a staggered mode is avoided, and potential safety hazards are left in a stair way or an escape channel, the vent pipe 15 is fixedly sleeved on one side of the vent pipe 8, when the piston rod 10 is pressed downwards by the dense smoke, if the piston rod 10 descends to the position below the vent pipe 15, the dense smoke is discharged from the vent pipe 15 and is discharged to a fire burning area, the sucked dense smoke is prevented from entering the stair way or the escape channel, when the dense smoke is discharged to a certain volume, the pressure on the top end of the piston rod 10 is reduced, the piston rod 10 is reset again, thereby being recyclable.

Wherein, the both ends of fire prevention gasbag 4 are equipped with and roll over the wrinkle, and have the ductility, when hinge 2 drives fire prevention gasbag 4 and expandes, it can freely outwards expand, avoids hindering the normal of preventing fire door to open, and when fire prevention gasbag 4 received the regional heat of outside burning a fire, self takes place the inflation, can hug closely the gap of filling between door frame 1 and door leaf 3, when avoiding the personnel in disaster to push away to prevent fire, dense smoke gets into in inboard stairway or the escape route through the gap.

Wherein, set up porosely on the inner wall of both ends one side about the inner chamber of door leaf 3, and the hole link up door leaf 3 one side inner wall, hinge 2 one side and fire prevention gasbag 4 one side, when fire prevention gasbag 4 outwards expands or inwards contracts, the accessible this hole, absorb the air in the cavity of piston plate 6 one side or discharge the gasbag to one side cavity, make piston plate 6 backward move or impel forward to make 6 opposite side cavities of piston plate and outside produce the pressure difference, realize the effect of negative pressure smoking.

Wherein, the inside of fire prevention capsule 12 is filled with the dry powder of putting out a fire, because of the dry powder has the characteristic of putting out a fire, when fire prevention capsule 12 is filled with the dry powder of putting out a fire, when piston rod 10 drove clamp plate 11 and extrudes it from top to bottom, the dry powder received huge extrusion force, thereby extrusion check valve 13, make it open, because of check valve 13 back pore is narrow and small, when the dry powder gets into the pore, pressure increase, pressure increases, and then receive acceleration, make it spout from nozzle 14, evenly spray near fire door, cover near the flame, and then reach the effect of putting out a fire.

The use method (working principle) of the invention is as follows:

when a fire disaster occurs and a person in the fire disaster escapes to the fireproof door, the fireproof handle 5 is held and screwed downwards to open the door leaf 3 and push the door leaf forward, when the door leaf 3 moves, the hinge 2 is opened outwards, the fireproof airbag 4 begins to expand, when the fireproof airbag 4 expands, the fireproof airbag penetrates through a hole formed in the inner cavity wall of the door leaf 3 to absorb air close to a cavity on one side of the piston plate 6, the piston plate 6 backs backwards, the cavity on the other side of the piston plate 6 is increased in volume, pressure difference is generated due to the inside and the outside, air outside the door leaf 3 extrudes the air suction one-way valve 7 to open the valve, the inner cavity of the door leaf 3 begins to absorb dense smoke near the door leaf 3 due to negative pressure backflow, when the person in the fire disaster loosens and escapes into a stairway or an escape channel, the fireproof door begins to automatically reset and closes, when the fireproof door is closed, the fireproof airbag 4 is extruded by two sides of the hinge 2, the start of contraction, piston plate 6 resets forward, check valve 7 closes of breathing in, dense cigarette that absorbs in the cavity, get into breather pipe 8, extrude piston rod 10 downwards, and piston rod 10 drives clamp plate 11 and extrudes fire prevention capsule 12 from top to bottom, when fire prevention capsule 12 receives pressure, its inside dry powder is extruded to in the nozzle 14 fast, spray to around preventing fire door by nozzle 14, prevent to have the ignition of flame near preventing fire door, when dense cigarette pushes down piston rod 10, when piston rod 10 descends to 15 mouths of blast pipe below, dense cigarette discharges from blast pipe 15, arrange to the region of burning a fire, when dense cigarette discharges certain volume, piston rod 10 top pressure reduces, piston rod 10 resets again, thereby cyclic utilization.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire control prevents fire door and pushes away automatic smoking device of door, includes door cheek (1), its characterized in that: both ends fixed mounting has hinge (2) about the inboard of door frame (1), the one end fixed mounting of hinge (2) has door leaf (3), the inboard fixed mounting of hinge (2) has fire prevention gasbag (4) that are located between door frame (1) and door leaf (3), the middle part both sides movable mounting of door leaf (3) has fire prevention handle (5), both ends movable mounting has two piston plates (6) about the inner chamber of door leaf (3), both ends movable mounting has two check valves of breathing in (7) about one side of door leaf (3), the inner chamber upper portion bottom and the lower part top of door leaf (3) are fixed to be cup jointed two breather pipes (8), two one end movable mounting of breather pipe (8) has exhaust check valve (9), the inner chamber of breather pipe (8) movable mounting has two piston rods (10) respectively, the one end fixedly connected with clamp plate (11) of two piston rods (10), a fireproof capsule (12) is fixedly installed on the inner side of the pressing plate (11), five one-way valves (13) are fixedly installed in the middle of the front face of the fireproof capsule (12), a nozzle (14) is fixedly installed at one end of each one-way valve (13), an exhaust pipe (15) is fixedly sleeved on one side of the vent pipe (8), and two ends of the fireproof airbag (4) are provided with folds and are extensible;

holes are formed in the inner wall of one side of the upper end and the lower end of the inner cavity of the door leaf (3), and the holes penetrate through the inner wall of one side of the door leaf (3), one side of the hinge (2) and one side of the fireproof airbag (4);

the interior of the fire-proof capsule (12) is filled with fire-extinguishing dry powder.