CN113914754A - Closed fire prevention door closer of corridor fire control - Google Patents

Closed fire prevention door closer of corridor fire control Download PDF

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Publication number
CN113914754A
CN113914754A CN202111170104.3A CN202111170104A CN113914754A CN 113914754 A CN113914754 A CN 113914754A CN 202111170104 A CN202111170104 A CN 202111170104A CN 113914754 A CN113914754 A CN 113914754A
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CN
China
Prior art keywords
fixed
fire
fixed box
spring
fire door
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Granted
Application number
CN202111170104.3A
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Chinese (zh)
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CN113914754B (en
Inventor
李松
蒋立文
邹璐
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Anhui Guangtong Construction Co ltd
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Anhui Guangtong Construction Co ltd
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Priority to CN202111170104.3A priority Critical patent/CN113914754B/en
Publication of CN113914754A publication Critical patent/CN113914754A/en
Application granted granted Critical
Publication of CN113914754B publication Critical patent/CN113914754B/en
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1008—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis
    • E05F1/1025—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis with a compression or traction spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/14—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with double-acting springs, e.g. for closing and opening or checking and closing no material
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • 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
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Special Wing (AREA)

Abstract

The invention relates to the technical field of fire fighting equipment and discloses a closed type fire door closer for corridor fire fighting. Through thrust spring I, the setting of thrust spring II and gag lever post, make, in daily use, utilize the gag lever post of slope gesture, and under the thrust effect of thrust spring I and thrust spring II differences, close to the fire door after finishing, avoid the consumption of the long-time in-process electric quantity of using of most electromagnetism door closers, and simultaneously, in daily use, when closing to the fire door, because thrust spring I and thrust spring II release the end gradually, its thrust that supports and pushes away slider I and slider II reduces gradually, after reaching the limit, can reverse the drawing, and then can slowly close the fire door, effectively prevent fire door and wall body violent collision, reduce the loss.

Description

Closed fire prevention door closer of corridor fire control
Technical Field
The invention relates to the technical field of fire fighting equipment, in particular to a closed type fire door closer for corridor fire fighting.
Background
At present, in order to strengthen the inside fire behavior of building, fire door is prevented in the installation of building evacuation passageway, the primary function is when the fire alarm appears play keep apart the condition of a fire and personnel effect of fleing, prevent that fire door is opened towards the fire escape way, and have the automatic answer function, the people just can run to the fire escape way very easily from residential area or commercial area, and the door meeting self-closing moreover, prevent the firework entering, win more survival chances for the personnel of fleing, but the fire door closer that uses at present has some not enoughly, as follows:
the fire prevention door closer who uses at present, though can make the door automatic recovery, block smog, but when the conflagration breaing out, its building is inside because on fire, can produce a large amount of hot gas, if can not be timely dredge, can be at the inside high pressure that produces of building, therefore, people can push away the door, then hot gas also can push away the door, make smog get into the fire control passageway in a large number, flee for one's life and cause very big threat, make people inhale a large amount of smog, cause the suffocation, the door closer that uses at present can not in time close the door, can not distinguish hot gas's promotion and people's thrust.
Disclosure of Invention
The invention provides a closed type fire-proof door closer for corridor fire control, which has the advantage of good smoke-proof function and solves the problems in the background technology.
The invention provides the following technical scheme: a closed fire door closer for corridor fire control comprises a wall body, a fire door and a temperature sensor, wherein the fire door is movably connected with the wall body through a rotating shaft, a fixed box I is fixedly installed at the top of the left side of the front of the fire door, a fixed box II is fixedly installed at the right side of the front of the fire door, a fixed round rod is fixedly installed inside the fixed box I, the right end of the fixed round rod is fixedly connected with the top of the fixed box II, a sliding block I is movably sleeved on the fixed round rod, a thrust spring I is movably sleeved on the fixed round rod and positioned at the left side of the sliding block I, a fixed box III is fixedly installed at the front of the wall body, a fixed square rod is fixedly installed on the fixed box III, the right end of the fixed square rod is fixedly connected with the front of the wall body through a fixed block, a sliding block II is movably sleeved on the fixed square rod, a thrust spring II is movably sleeved on the fixed square rod, the both ends of thrust spring II respectively with the left side of slider II and the right side fixed connection of fixed case III, swing joint has the gag lever post on the slider I, the movable sleeve has been cup jointed in the bottom activity of slider II, the gag lever post with movable sleeve activity joint, the extension length of thrust spring I is less than the extension length of thrust spring II.
Preferably, a pressing plate is movably installed on an inner gauge of the fixed box II, a high-temperature-resistant airbag is fixedly installed inside the fixed box II and positioned on the back surface of the pressing plate, the front surface of the high-temperature-resistant airbag is fixedly connected with the back surface of the pressing plate, a pressing spring is fixedly connected on the inner wall of the fixed box II and positioned inside the pressing plate, a magnetic sleeve is movably sleeved on the pressing spring, the other end of the pressing spring is fixedly connected with the inner wall of the magnetic sleeve, the left side of the magnetic sleeve is fixedly connected with the high-temperature-resistant airbag, an air inlet valve port is formed in the right side of the pressing plate and connected with the outside, a clamping block is movably installed at the bottom end of the fixed box II and movably clamped with the bottom end of the pressing plate, a pull rod is fixedly connected at the bottom end of the clamping block and movably sleeved with the fixed box II, and a supporting spring is uniformly and fixedly connected at the bottom end of the clamping block, the left end fixedly connected with high temperature resistant hose of fixed round bar, the inside activity joint of fixed square bar has fixed pipe, fixedly connected with biography trachea on the fixed pipe, it is located the inside of fixed square bar to pass the trachea, high temperature resistant hose is through biography trachea and fixed pipe intercommunication, the bottom and the movable sleeve intercommunication of fixed pipe, the inside activity joint of movable sleeve has the buckle, evenly fixed cover has connect the latch on the front end of gag lever post, the bottom and the latch activity joint of buckle, the inside activity that just is located fixed case II on the fixed round bar has cup jointed and has pushed away a section of thick bamboo, the right-hand member of fixed round bar and the right part that pushes away a section of thick bamboo communicate with the inner chamber of high temperature resistant gasbag respectively.
Preferably, the left end of fixed pole and the inside activity that is located fixed case I have cup jointed the enhancement spring, the inside of fixed case I and the left end department activity that is located the enhancement spring have the Y type hairpin, the right-hand member of enhancement spring and the left end fixed connection of thrust spring I, fixed case I and external intercommunication are passed to the bottom of Y type hairpin, the top of Y type hairpin and the inside activity that is located fixed case I have cup jointed supporting spring, the inside of fixed case II and the below fixed mounting that is located the Y type hairpin have electromagnetic means, the inside below fixed mounting that just is located the fixture block of fixed case II has electromagnetic means, the equal fixed mounting in bottom of Y type hairpin and fixture block has magnet.
Preferably, an electromagnetic switch is fixedly mounted on the back surface of the fire door, and the electromagnetic switch and the magnetic sleeve are located on the same horizontal plane.
The invention has the following beneficial effects:
1. through thrust spring I, the setting of thrust spring II and gag lever post, make, in daily use, utilize the gag lever post of slope gesture, and under the thrust effect of thrust spring I and thrust spring II differences, close to the fire door after finishing, avoid the consumption of the long-time in-process electric quantity of using of most electromagnetism door closers, and simultaneously, in daily use, when closing to the fire door, because thrust spring I and thrust spring II release the end gradually, its thrust that supports and pushes away slider I and slider II reduces gradually, after reaching the limit, can reverse the drawing, and then can slowly close the fire door, effectively prevent fire door and wall body violent collision, reduce the loss.
2. Through the setting of pressing the clamp plate and strengthening spring, make the conflagration come temporarily, strengthening spring fully supports to pressing slider I, make the gag lever post be the vertical state with the front of fire door, and the buckle carries out the chucking to the gag lever post, when on the fire door is used to fire pressure, under the traction of gag lever post, can not push away the fire door, effectively block in smog gets into fire control passageway, effectively reserve sufficient escape time for personnel, when people need flee from, only need press the clamp plate, can push away the restraint of gag lever post, open the fire door, can get into the fire control passageway.
Drawings
FIG. 1 is a schematic top view of the structure of the present invention in a normal state;
FIG. 2 is a schematic top view of the structure of the present invention illustrating a fire condition;
FIG. 3 is a schematic side view of the structure of the present invention;
FIG. 4 is a side view partially in schematic form of the structure of the present invention;
FIG. 5 is a schematic side view of the structural holding box I of the present invention;
FIG. 6 is an enlarged view of the point A in FIG. 3;
FIG. 7 is an enlarged view of the point B in FIG. 3 according to the present invention.
In the figure: 1. a wall body; 2. a fire door; 3. a fixed box I; 4. a fixed box II; 5. fixing the round rod; 6. a sliding block I; 7. a thrust spring I; 8. a reinforcing spring; 9. a fixed box III; 10. fixing the square rod; 11. a sliding block II; 12. a thrust spring II; 13. a limiting rod; 14. a pressing plate; 15. a high temperature resistant air bag; 16. a magnetic sleeve; 17. a pressing spring; 18. a clamping block; 19. a pull rod; 20. an electromagnetic device; 21. a high temperature resistant hose; 22. a gas transmission pipe; 23. a fixed tube; 24. a movable sleeve; 25. buckling; 26. a push cylinder; 27. a Y-shaped hairpin; 28. an electromagnetic switch.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a closed fire door closer for corridor fire protection comprises a wall 1, a fire door 2 and a temperature sensor, wherein the fire door 2 is movably connected with the wall 1 through a rotating shaft, a fixed box i 3 is fixedly installed at the top of the left side of the front of the fire door 2, a fixed box ii 4 is fixedly installed at the right side of the front of the fire door 2, a fixed round bar 5 is fixedly installed inside the fixed box i 3, the right end of the fixed round bar 5 is fixedly connected with the top of the fixed box ii 4, a sliding block i 6 is movably sleeved on the fixed round bar 5, a thrust spring i 7 is movably sleeved on the left side of the sliding block i 6 on the fixed round bar 5, a fixed box iii 9 is fixedly installed at the front of the wall 1, a fixed square bar 10 is fixedly installed on the fixed box iii 9, the right end of the fixed square bar 10 is fixedly connected with the front of the wall 1 through a fixed block, a sliding block ii 11 is movably sleeved on the fixed square bar 10, a thrust spring II 12 is movably sleeved on the fixed square rod 10, two ends of the thrust spring II 12 are respectively fixedly connected with the left side of the sliding block II 11 and the right side of the fixed box III 9, a limiting rod 13 is movably connected on the sliding block I6, a movable sleeve 24 is movably sleeved at the bottom end of the sliding block II 11, the limiting rod 13 is movably clamped with the movable sleeve 24, the extension length of the thrust spring I7 is smaller than that of the thrust spring II 12, therefore, the limiting rod 13 is in an inclined posture (shown in figure 1) at the moment, when the fire door 2 is pushed, the fire door 2 starts to rotate, and further, the sliding block I6 drives the limiting rod 13 to slide on the fixed round rod 5 and the fixed square rod 10 leftwards respectively through the limiting rod 13 and compress the thrust spring I7 and the thrust spring II 12 respectively, when the thrust of the fire door 2 disappears, the thrust spring I7 and the thrust spring II 12 respectively support the sliding block I6 and the sliding block II 11 to translate rightwards, because the fixed square rod 10 is fixed and can pull the fire door 2 under the traction of the limiting rod 13, the fire door 2 can be closed, and the acceleration of the pushing sliding block I6 and the acceleration of the pushing sliding block II 11 are gradually reduced after the thrust spring I7 and the thrust spring II 12 are gradually released, the fire door 2 can be slowly closed, and the fire door 2 is effectively prevented from violently colliding with the wall body 1; a pressing plate 14 is movably arranged in the inner gauge of the fixed box II 4, a high-temperature-resistant air bag 15 is fixedly arranged in the fixed box II 4 and is positioned on the back surface of the pressing plate 14, the front surface of the high-temperature-resistant air bag 15 is fixedly connected with the back surface of the pressing plate 14, a pressing spring 17 is fixedly connected on the inner wall of the fixed box II 4 and is positioned in the pressing plate 14, a magnetic sleeve 16 is movably sleeved on the pressing spring 17, the other end of the pressing spring 17 is fixedly connected with the inner wall of the magnetic sleeve 16, the left side of the magnetic sleeve 16 is fixedly connected with the high-temperature-resistant air bag 15, an air inlet valve port is arranged on the right side of the pressing plate 14 and is connected with the outside, a clamping block 18 is movably arranged at the bottom end of the fixed box II 4, the clamping block 18 is movably clamped with the bottom end of the pressing plate 14, a pull rod 19 is fixedly connected at the bottom end of the clamping block 18, the pull rod 19 is movably sleeved with the fixed box II 4, and the bottom end of the clamping block 18 is uniformly and fixedly connected with a supporting spring, the left end of the fixed round rod 5 is fixedly connected with a high temperature resistant hose 21, the inside of the fixed square rod 10 is movably clamped with a fixed pipe 23, the fixed pipe 23 is fixedly connected with a gas transmission pipe 22, the gas transmission pipe 22 is positioned inside the fixed square rod 10, the high temperature resistant hose 21 is communicated with the fixed pipe 23 through the gas transmission pipe 22, the bottom end of the fixed pipe 23 is communicated with a movable sleeve 24, the inside of the movable sleeve 24 is movably clamped with a buckle 25, the front end of the limiting rod 13 is uniformly and fixedly sleeved with a latch, the bottom end of the buckle 25 is movably clamped with the latch, the inside of the fixed round rod 5 and positioned in the fixed box II 4 is movably sleeved with a push cylinder 26, the right end of the fixed round rod 5 and the right end of the push cylinder 26 are respectively communicated with the inner cavity of the high temperature resistant airbag 15, when a fire comes, the pull rod 19 is pulled downwards to push the push spring 17 to push the plate 14 to rotate, and further to pull the high temperature resistant airbag 15 to expand the high temperature resistant airbag 15, further, air is sucked into the interior through the air inlet valve port, when a person needs to push the fire door 2 open to escape, because the fixed box II 4 is located at the rightmost side of the front face of the fire door 2, the moment generated at the rightmost side is the largest, people can habitually push the fixed box II to further press the pressing plate 14, respectively press the air in the high-temperature-resistant air bag 15 to the insides of the push cylinder 26 and the fixed round rod 5, the air pressing the push cylinder 26 further pushes the push cylinder 26 to slide leftwards, further push the sliding block I6 to move leftwards, the air entering the fixed round rod 5 sequentially passes through the high-temperature-resistant hose 21, the air transmission pipe 22 and the fixed pipe 23 to be transmitted into the movable sleeve 24, the buckle 25 is pushed upwards to open the limit of the limiting rod 13, further increase the length of the limiting rod 13 between the sliding block I6 and the movable sleeve 24, increase the inclination angle of the limiting rod 13, and further reduce the constraint force between the sliding block I6 and the sliding block II 11, the speed of pushing the fire door 2 is increased, and the escape efficiency of people is improved; the left end of the fixed round rod 5 is movably sleeved with a reinforcing spring 8 in the fixed box I3, the inside of the fixed box I3 is movably clamped with a Y-shaped hairpin 27 at the left end of the reinforcing spring 8, the right end of the reinforcing spring 8 is fixedly connected with the left end of the thrust spring I7, the bottom end of the Y-shaped hairpin 27 penetrates through the fixed box I3 to be communicated with the outside, the top end of the Y-shaped hairpin 27 is movably sleeved with a supporting spring in the fixed box I3, the inside of the fixed box II 4 is fixedly provided with an electromagnetic device below the Y-shaped hairpin 27, the inside of the fixed box II 4 is fixedly provided with an electromagnetic device 20 below the clamping block 18, the bottoms of the Y-shaped hairpin 27 and the clamping block 18 are both fixedly provided with magnets, after a fire disaster occurs, the pressure caused by the fire disaster is increased, so that the Y-shaped hairpin 27 is pulled down, the reinforcing spring 8 is released, and the thrust spring I7 and the reinforcing spring 8 fully press the sliding block I6, the limiting rod 13 is vertical to the front face of the fire door 2, the buckle 25 clamps the limiting rod 13, the fire door 2 cannot be pushed open when fire pressure acts on the fire door 2, smoke is effectively prevented from entering a fire passage, sufficient escape time is effectively reserved for personnel, and when people need to escape, only the pressing plate 14 needs to be pressed; the back of the fire door 2 is fixedly provided with an electromagnetic switch 28, the electromagnetic switch 28 and the magnetic sleeve 16 are positioned on the same horizontal plane, when a person needs to enter a corridor from a fire passage, the electromagnetic switch 28 is pressed to connect an electromagnetic circuit, and the magnetic sleeve 16 is attracted by prosperous electromagnetic force to pull back the magnetic sleeve 16, so that the high-temperature-resistant air bag 15 is pulled back, air is pushed to enter the push cylinder 26 and the fixed round rod 5, and the fire door 2 can be pulled back.
Working principle, when normally closed, the limiting rod 13 is in an inclined posture (as shown in figure 1), when the fire door 2 is pushed, the fire door 2 starts to rotate, and then the sliding block I6 drives the limiting rod 13 to slide on the fixed round rod 5 and the fixed square rod 10 leftwards respectively through the limiting rod 13, and respectively compresses the thrust spring I7 and the thrust spring II 12, when the thrust to the fire door 2 disappears, the thrust spring I7 and the thrust spring II 12 respectively support and push the sliding block I6 and the sliding block II 11 to translate rightwards, because the fixed square rod 10 is fixed, and under the traction of the limiting rod 13, the fire door 2 can be pulled, and then the fire door 2 can be closed, because the thrust spring I7 and the thrust spring II 12 are gradually released, the acceleration of the supporting and pushing the sliding block I6 and the sliding block II 11 is gradually reduced, and then the fire door 2 can be slowly closed, (ii) a
When a fire disaster occurs, the pull rod 19 is pulled downwards, so that the pressing spring 17 pushes the pressing plate 14 to rotate, and then the high-temperature-resistant air bag 15 is pulled, so that the high-temperature-resistant air bag 15 is expanded, and then air is sucked into the interior through the air inlet valve port, when a person needs to push the fire door 2 to escape, because the fixed box II 4 is positioned at the rightmost side of the front side of the fire door 2, the moment generated at the right side is the largest, so that the person can habitually push the position to further press the pressing plate 14, respectively press the air in the high-temperature-resistant air bag 15 to the inside of the pushing cylinder 26 and the fixed round rod 5, press the air pressed to the pushing cylinder 26 to further push the pushing cylinder 26 to slide leftwards, further push the sliding block I6 to move leftwards, and the air entering the fixed round rod 5 passes through the high-temperature-resistant hose 21, the air transmission pipe 22 and the fixed pipe 23 to be transferred into the movable sleeve 24, and then the buckle 25 is pressed upwards, the limit on the limiting rod 13 is opened, the length of the limiting rod 13 between the sliding block I6 and the movable sleeve 24 is increased, the inclination angle of the limiting rod 13 is increased, the constraint force between the sliding block I6 and the sliding block II 11 is reduced, the speed of pushing the fire door 2 open is accelerated, if the pressure generated by fire is too large, the Y-shaped hairpin 27 is pulled down, the reinforcing spring 8 is released, the thrust spring I7 and the reinforcing spring 8 fully support and press the sliding block I6, the limiting rod 13 is perpendicular to the front face of the fire door 2, the buckle 25 clamps the limiting rod 13, and when the fire pressure acts on the fire door 2, the limiting rod 13 is vertically tensioned by the limiting rod 13 and cannot be opened;
when a person needs to enter the corridor from the fire fighting access, the electromagnetic switch 28 is pressed, the electromagnetic circuit is switched on, the electromagnetic force is prosperous, the magnetic sleeve 16 is attracted, the magnetic sleeve 16 is pulled back, the high-temperature-resistant air bag 15 is pulled back, air is pushed to enter the push cylinder 26 and the fixed round rod 5, and the fire fighting door 2 can be pulled open.
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 (4)

1. The utility model provides a closed fire prevention door closer of corridor fire control, includes wall body (1), fire door (2) and temperature sensor, fire door (2) are through pivot swing joint, its characterized in that with wall body (1): the fire door comprises a fire door body (2), a fixed box I (3) is fixedly mounted at the top of the left side of the front of the fire door body (2), a fixed box II (4) is fixedly mounted at the right side of the front of the fire door body (2), a fixed round rod (5) is fixedly mounted in the fixed box I (3), the right end of the fixed round rod (5) is fixedly connected with the top of the fixed box II (4), a slider I (6) is movably sleeved on the fixed round rod (5), a thrust spring I (7) is movably sleeved on the fixed round rod (5) and positioned on the left side of the slider I (6), a fixed box III (9) is fixedly mounted on the front of a wall body (1), a fixed square rod (10) is fixedly mounted on the fixed box III (9), the right end of the fixed square rod (10) is fixedly connected with the front of the wall body (1) through a fixed block, a slider II (11) is movably sleeved on the fixed square rod (10), fixed square pole (10) are gone up the activity and have been cup jointed thrust spring II (12), the both ends of thrust spring II (12) respectively with the left side of slider II (11) and the right side fixed connection of fixed case III (9), swing joint has gag lever post (13) on slider I (6), the activity of the bottom of slider II (11) is cup jointed movable sleeve (24), gag lever post (13) with movable sleeve (24) activity joint, the extension length of thrust spring I (7) is less than the extension length of thrust spring II (12).
2. The closed fire-proof door closer for fire fighting in corridor according to claim 1, wherein: a pressing plate (14) is movably installed in the fixed box II (4), a high-temperature-resistant air bag (15) is fixedly installed in the fixed box II (4) and located on the back of the pressing plate (14), the front of the high-temperature-resistant air bag (15) is fixedly connected with the back of the pressing plate (14), a pressing spring (17) is fixedly connected on the inner wall of the fixed box II (4) and located in the pressing plate (14), a magnetic sleeve (16) is movably sleeved on the pressing spring (17), the other end of the pressing spring (17) is fixedly connected with the inner wall of the magnetic sleeve (16), the left side of the magnetic sleeve (16) is fixedly connected with the high-temperature-resistant air bag (15), an air inlet valve port is formed in the right side of the pressing plate (14) and connected with the outside, a clamping block (18) is movably installed at the bottom end of the fixed box II (4), and the clamping block (18) is movably clamped with the bottom end of the pressing plate (14), the bottom end of the clamping block (18) is fixedly connected with a pull rod (19), the pull rod (19) is movably sleeved with a fixed box II (4), the bottom end of the clamping block (18) is uniformly and fixedly connected with a supporting spring, the left end of the fixed round rod (5) is fixedly connected with a high-temperature-resistant hose (21), the fixed square rod (10) is movably clamped with a fixed pipe (23), the fixed pipe (23) is fixedly connected with a gas transmission pipe (22), the gas transmission pipe (22) is positioned inside the fixed square rod (10), the high-temperature-resistant hose (21) is communicated with the fixed pipe (23) through the gas transmission pipe (22), the bottom end of the fixed pipe (23) is communicated with a movable sleeve (24), the movable sleeve (24) is movably clamped with a buckle (25), the front end of the limiting rod (13) is uniformly clamped with a latch, and the bottom end of the buckle (25) is movably clamped with the latch, the inner part of the fixed round rod (5) and the inner part of the fixed box II (4) are movably sleeved with a push cylinder (26), and the right end of the fixed round rod (5) and the right part of the push cylinder (26) are communicated with the inner cavity of the high-temperature-resistant air bag (15) respectively.
3. The closed fire-proof door closer for fire fighting in corridor according to claim 1, wherein: a reinforcing spring (8) is movably sleeved at the left end of the fixed round rod (5) and positioned in the fixed box I (3), a Y-shaped hairpin (27) is movably clamped in the fixed box I (3) and at the left end of the reinforcing spring (8), the right end of the reinforcing spring (8) is fixedly connected with the left end of the thrust spring I (7), the bottom ends of the Y-shaped forks (27) penetrate through the fixed box I (3) to be communicated with the outside, the top end of the Y-shaped hairpin (27) is movably sleeved with a supporting spring inside the fixed box I (3), an electromagnetic device is fixedly arranged in the fixed box II (4) and below the Y-shaped hairpin (27), an electromagnetic device (20) is fixedly arranged in the fixed box II (4) and below the clamping block (18), and magnets are fixedly arranged at the bottoms of the Y-shaped hairpin (27) and the fixture block (18).
4. The closed fire-proof door closer for fire fighting in corridor according to claim 1, wherein: the back of the fire door (2) is fixedly provided with an electromagnetic switch (28), and the electromagnetic switch (28) and the magnetic sleeve (16) are positioned on the same horizontal plane.
CN202111170104.3A 2021-10-08 2021-10-08 Closed fire prevention door closer of corridor fire control Active CN113914754B (en)

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CN202111170104.3A CN113914754B (en) 2021-10-08 2021-10-08 Closed fire prevention door closer of corridor fire control

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1342995A1 (en) * 1985-12-05 1987-10-07 Специальное проектно-конструкторское и технологическое бюро "Энергостальпроект" Fire-safety door
JP2005194852A (en) * 2004-01-05 2005-07-21 Kazunari Suzuki Smoke insulation device for fire sliding door
JP2016008495A (en) * 2014-06-26 2016-01-18 不二サッシ株式会社 Door with opening device and application method thereof
CN208430953U (en) * 2018-06-28 2019-01-25 青岛万和装饰门窗工程有限公司 Full hidden fire window
CN109723306A (en) * 2017-10-31 2019-05-07 吴恒 A kind of mechanical automatic door closer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1342995A1 (en) * 1985-12-05 1987-10-07 Специальное проектно-конструкторское и технологическое бюро "Энергостальпроект" Fire-safety door
JP2005194852A (en) * 2004-01-05 2005-07-21 Kazunari Suzuki Smoke insulation device for fire sliding door
JP2016008495A (en) * 2014-06-26 2016-01-18 不二サッシ株式会社 Door with opening device and application method thereof
CN109723306A (en) * 2017-10-31 2019-05-07 吴恒 A kind of mechanical automatic door closer
CN208430953U (en) * 2018-06-28 2019-01-25 青岛万和装饰门窗工程有限公司 Full hidden fire window

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