CN115467613A

CN115467613A - Special fireproof door integrating smoke sensing alarm and automatic closing functions

Info

Publication number: CN115467613A
Application number: CN202211049435.6A
Authority: CN
Inventors: 倪晓波; 胡定坤; 徐跃进; 王晖; 麻鹏程
Original assignee: Zhejiang Xingzhu Technology Co ltd
Current assignee: Zhejiang Xingzhu Technology Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-13
Anticipated expiration: 2042-08-30
Also published as: CN115467613B

Abstract

The invention relates to the technical field of special fireproof doors, in particular to a special fireproof door integrating smoke sensing alarm and automatic closing functions. When fire occurs, the two door panels can be closed without manual operation, and meanwhile, when the door panels are completely closed, the extended inserting rods can be inserted into the inserting grooves, and the stop rods can be rotatably clamped into the stop blocks.

Description

Special fireproof door integrating smoke sensing alarm and automatic closing functions

Technical Field

The invention relates to the technical field of fire doors, in particular to a special fire door integrating smoke sensing alarm and automatic closing functions.

Background

The fireproof door is a door which can meet the requirements of fire-resistant stability, integrity and heat insulation within a certain time, is a fireproof partition with certain fire resistance, is arranged in a fire-resistant partition room, an evacuation staircase, a vertical shaft and the like, is specially used for isolating a fire source in a house building, has a huge effect on fire fighting work, and can be used for people to obtain escape opportunities through the fireproof door once a fire occurs.

The special fireproof door is normally opened in a normal state, so that people can conveniently pass, a certain ventilation effect is achieved, when a fire disaster occurs and people are evacuated, if the fireproof door is closed in time, the spreading of the fire can be reduced to a certain extent, and the fire can not be excessively spread, so that the fire can be effectively controlled, and harm and loss caused by the fire can be reduced.

However, most existing fire doors do not have an automatic closing function, and therefore need to be manually closed, but in case of fire outburst, the manual operation closing is difficult to achieve and extremely dangerous, and in addition, most existing fire doors are closed and locked by using latches and are not provided with other reinforcing support structures, so that even though the fire doors have strong heat insulation and fire resistance effects, high-pressure impact phenomena such as explosion and the like are very easy to occur when a fire occurs, and the fire doors which are only closed and locked by using latches have limited protection against high-pressure impact such as explosion and the like, and door panels are easy to be exploded due to the high-pressure impact, so that a special fire door integrating smoke sensing alarm and automatic closing function is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a special fireproof door integrating smoke alarm and automatic closing functions, and aims to solve the problems that most of the existing fireproof doors in the background art do not have the automatic closing function, so that manual closing operation is needed, but in the case of fire outbreak, manual closing operation is difficult to realize and extremely dangerous, and in addition, most of the existing fireproof doors are insufficient in protection against high-pressure impact such as explosion.

In order to achieve the purpose, the invention provides the following technical scheme: a special fireproof door integrating smoke sensing alarm and automatic closing function comprises a door frame, door plates, smoke alarms, audible and visual alarms, an electromagnetic valve and a motor, wherein two groups of door plates are symmetrically and rotatably installed on the inner side of the door frame, the smoke alarms and the audible and visual alarms are installed at the upper end of the door frame, a spraying mechanism is arranged on the upper side of the door frame, the motor is installed on the lower side of the inner wall of the door frame, connecting seats are symmetrically arranged on the upper side and the lower side of one end, close to the door frame, of the door plates, the connecting seats are rotatably installed on the inner side of the door plates, the output end of the motor is connected with the lower end of the connecting seats on the left lower side, first bevel gears are fixedly installed on the connecting seats arranged on the upper sides of the two groups of door plates, a transmission shaft is rotatably installed on the upper end of the door frame through a bearing, and second bevel gears are symmetrically installed at the left end and the right end of the transmission shaft, the second bevel gear is meshed with the first bevel gear, three groups of inserted bars are arranged in the door plate through a rotating mechanism, slots matched with the inserted bars are formed in the inner side of the door frame, lifting mechanisms are arranged on the left side and the right side of the door frame, one group of inserted bars are connected with the lifting mechanisms, the device can automatically close two groups of door plates through the driving of a motor, and can be supported and reinforced through the inserted bars when being closed, therefore, the door plate can be closed in time under the condition of no manual operation, the fire spreading is reduced, the fire influence is reduced, the impact resistance of the door plate can be increased, the door plate can have good explosion impact resistance in a fire, the protection and separation effect of the door plate in the fire can be improved, the sealing strip is arranged at the edge of the door plate, and the sealing groove matched with the sealing strip is formed in the inner side surface of the door plate.

Preferably, smoke alarm is all installed to both sides central point around the upper end of door frame, two sets of audible-visual annunciators are all installed to both sides symmetry around the upper end of door frame, and this structure is used for guaranteeing the validity of smoke detection and the promptness of reminding, can effectual promotion detection alarm effect and the degree of accuracy.

Preferably, the spraying mechanism includes the water pipe, the water pipe is installed to the upper end of door frame, and the both ends of water pipe both sides around placing the door frame upper end respectively, the downside equidistance at both ends is provided with the shower nozzle around the water pipe, the solenoid valve is installed to the end of water pipe, and is provided with the threaded connection head on the solenoid valve, and this structure is used for drenching through spraying when the conflagration appears, reduces the probability of firing of people's clothing and hair, can play the cooling simultaneously, extinguishes fire, effect such as dust fall, the effectual success rate that promotes people and flee.

Preferably, install the battery in the door frame, and the downside of motor is placed in to the battery, the battery is connected with the motor electricity, and this structure makes external power source break down when the conflagration appears, and the battery also can give the motor energy supply to ensure that the door plant can be closed.

Preferably, rotary mechanism includes the movable groove, and the central point of door plant puts and has seted up the movable groove, and the movable groove internal rotation installs the carousel, annular array rotates on the carousel and installs three connecting rods of group, the guide way has all been seted up at the upper and lower both ends of door plant and the one end that is close to the door frame, and sliding connection has the inserted bar in the guide way, the inserted bar is close to the one end of carousel and rotates with the end of connecting rod to be connected, and this structure is used for the rotation through the carousel, controls the inserted bar of three groups and stretch out and the income operation in the guide way to when making the fire disaster appear, the door plant can support the reinforcement through the inserted bar that three groups stretch out after the closure, in order to promote the shock resistance of door plant, cause it to have good wall and protecting effect in the fire disaster.

Preferably, the pin is installed to the front end of carousel, and the front side of door plant is arranged in to the pin, the front end edge of door plant be provided with the dog of pin looks adaptation, the handle is installed to the rear end of carousel, and the rear side of door plant is arranged in to the handle, and this structure is used for all openable inserted bar and door plant in the both sides of door plant to when the pin transversely gets into the dog on another group of door plant, can play the reinforcement effect.

Preferably, the inner walls of four sides of the guide groove are rotatably provided with balls, the surface of the inserted rod is provided with a guide rail matched with the balls, the balls roll in the guide rail, and the structure is used for reducing the sliding friction resistance of the inserted rod in the guide groove, so that the inserted rod can smoothly slide in the guide groove.

Preferably, the internal diameter of slot and the external diameter looks adaptation of inserted bar, the outer end of inserted bar is arc, the downside the opening inner wall of slot evenly is provided with hides the hole hair, and this structure is used for shielding at the opening part of downside slot, avoids in the great impurity directly gets into the downside slot in daily in-process, causes the downside slot to appear the circumstances such as jam.

Preferably, the lifting mechanism includes a sliding groove, the sliding grooves are symmetrically formed in the left end and the right end of the door frame, a screw rod is rotatably mounted in the sliding groove, the upper end and the lower end of the screw rod are respectively connected with the upper connecting seat and the lower connecting seat, a screw sleeve is sleeved on the screw rod through threads, the screw sleeve is fixedly mounted in the screw sleeve, the sleeve slides in the sliding groove, a sliding block is slidably connected in the sliding groove, the sliding block is fixedly connected with the sleeve, the upper end of the sliding block is an inclined plane, the height of the upper surface of the sliding block is gradually increased from one side close to the door panel, the door panel is far away from one side of the sliding block, the edge of the upper end of the sliding block is arc-shaped, the sliding block is fixedly connected with the lower end of the steel wire, the upper end of the steel wire and one end of the insertion rod transversely arranged in the door panel, close to the insertion rod is pulled by the sliding block, so that the rotary table is triggered to rotate, and the insertion rod can be naturally inserted into the aligning slot to support and reinforce the door panel.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the smoke alarm and the audible and visual alarm are arranged to detect the smoke concentration so as to realize fire prevention, and when a fire is detected, the electromagnetic valve can be automatically opened, and spraying operation is carried out through the water pipe and the spray head, so that people passing through the door frame can be wetted by water mist, the possibility that clothes and hair worn by people are ignited can be reduced, and the burning and scalding situations of people can also be reduced;

when the conflagration appears, and when needing the door plant to close, steerable motor starts, the motor can drive the connecting seat rotation on the door plant of one side, this side connecting seat can pass through the transmission shaft transmission to the opposite side connecting seat afterwards, cause two sets of door plants all can rotate the closure in step, thereby can be under the condition that need not artificial operation, let two sets of door plants closed, simultaneously the door plant is complete when closing, the slider can descend and stimulate a set of inserted bar and stretch out, cause remaining two sets of inserted bars all to stretch out, the inserted bar is when the door plant is closed, the inserted bar that stretches out can insert in the slot, and the inserted bar can rotate to block in the stopper, through these two kinds of locking methods, can support the reinforcement to the door plant, thereby when the conflagration appears, can effectually promote the fastness of door plant, its anti-explosion impact's effect has been increased, and can in time trigger when the door plant is complete closed.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of the structure of the present invention in the open state;

FIG. 2 is a rear view of the structure of the present invention in the open state;

FIG. 3 is a schematic sectional view of the rear view of the structure of the present invention in the open state;

FIG. 4 is a schematic side sectional view of the structure of the present invention in the open state;

FIG. 5 is a schematic front view of the door closing state of the present invention;

FIG. 6 is a schematic sectional rear view of the door closed state of the present invention;

FIG. 7 is a schematic top sectional view of the door closed state of the present invention;

FIG. 8 is a schematic view of the structure of the rotating mechanism and the lifting mechanism of the present invention;

FIG. 9 is an enlarged partial view of A of FIG. 1 according to the present invention;

FIG. 10 is an enlarged partial view of B of FIG. 1 according to the present invention;

FIG. 11 is an enlarged view of a portion of C of FIG. 3 according to the present invention;

FIG. 12 is an enlarged partial view of D of FIG. 6 according to the present invention.

In the figure: 1. a door frame; 2. a door panel; 3. a smoke alarm; 4. an audible and visual alarm; 5. a water pipe; 6. a spray head; 7. an electromagnetic valve; 8. a threaded connector; 9. a motor; 10. a storage battery; 11. a connecting seat; 12. a first bevel gear; 13. a drive shaft; 14. a second bevel gear; 15. a movable groove; 16. a turntable; 17. a stop lever; 18. a stopper; 19. a handle; 20. a connecting rod; 21. a guide groove; 22. inserting a rod; 23. a ball bearing; 24. a guide rail; 25. a slot; 26. covering the hole hair; 27. a chute; 28. a screw; 29. a threaded sleeve; 30. sleeving blocks; 31. a slider; 32. a steel wire; 33. a sealing strip; 34. sealing the groove.

The specific implementation mode is as follows:

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. 1-12, an embodiment of the present invention is shown: the utility model provides a set smoke and feel warning and automatic closed function prevent fire door of special type, including door frame 1, door plant 2, smoke alarm 3, audible-visual annunciator 4, solenoid valve 7 and motor 9, 1 inboard symmetry of door frame is rotated and is installed two sets of door plants 2, smoke alarm 3 and audible-visual annunciator 4 are installed to the upper end of door frame 1, smoke alarm 3 is all installed to both sides central point around the upper end of door frame 1, two sets of audible-visual annunciators 4 are all installed to both sides symmetry around the upper end of door frame 1, smoke alarm 3 and audible-visual annunciator 4 can be connected with battery 10 electricity, simultaneously the same with motor 9, when daily using, supply power through external power source, control through external controller, smoke alarm 3 and audible-visual annunciator 4 and motor 9 are present mature technique, its specific structure and theory of operation do not do more here and give unnecessary redundancy, smoke alarm 3 is used for detecting smoke concentration, judge the condition of fire appears when smoke concentration that detects surpasss the setting value, audible-visual annunciator 4 can begin the alarm afterwards.

The upside of door frame 1 is provided with the mechanism that sprays, the mechanism that sprays triggers immediately after smoke alarm 3 detects the condition of a fire, the mechanism that sprays includes water pipe 5, water pipe 5 is installed to the upper end of door frame 1, and the both ends of water pipe 5 are arranged in the front and back both sides of door frame 1 upper end respectively, the downside equidistance at both ends is provided with shower nozzle 6 around water pipe 5, solenoid valve 7 is installed to the end of water pipe 5, and be provided with threaded connection head 8 on the solenoid valve 7, as shown in fig. 1-3 and fig. 9, threaded connection head 8 realizes connecting external water source, after solenoid valve 7 is opened, the water source can be through water pipe 5 and shower nozzle 6 both sides blowout down around door frame 1, so when people pass through door frame 1, the water smoke that sprays can wet clothes and hair on one's body, thereby can reduce the possibility that people's clothes hair is being fired in the conflagration, and can cool down the human body, reduce the condition of firing and scald, in addition can also can carry out a certain degree on door frame 1 department put out a fire, the cooling, fog effect such as fog, can promote people's escape probability, reduce fire and control and help the door plant to provide rescue dust fall, thereby help the rescue personnel that rescue when reaching the conflagration to reach the door plant.

As shown in fig. 3, a motor 9 is installed on the lower side of the inner wall of a door frame 1, after a smoke alarm 3 detects a fire, the motor 9 can be started by an operation controller after people are evacuated, a storage battery 10 is installed in the door frame 1, the storage battery 10 is arranged on the lower side of the motor 9, the storage battery 10 is electrically connected with the motor 9, the storage battery 10 can be used as a standby power supply, when a fire occurs, an external power supply is prone to cause a problem, at the moment, the storage battery 10 can be used as an emergency power supply to supply energy to the motor 9 and the smoke alarm 3, the audible and visual alarm 4 and the electromagnetic valve 7, so that the components can normally work for one end time when the fire occurs, connecting seats 11 are symmetrically arranged on the upper side and the lower side of one end of a door panel 2 close to the door frame 1, the connecting seats 11 are rotatably installed on the inner side of the door panel 2, and the output end of the motor 9 is connected with the lower end of the left connecting seat 11, a first bevel gear 12 is fixedly installed on a connecting seat 11 arranged on the upper sides of the two door panels 2, a transmission shaft 13 is rotatably installed at the upper end of the door frame 1 through a bearing, second bevel gears 14 are symmetrically installed at the left end and the right end of the transmission shaft 13, the second bevel gears 14 are meshed with the first bevel gear 12, when the motor 9 is started, the connecting seat 11 on one door panel 2 is driven to rotate, when the connecting seat 11 on one side rotates, the second bevel gears 14 are driven to rotate through the first bevel gears 12, the second bevel gears 14 on the other side drive the second bevel gears 14 through the transmission shaft 13, the second bevel gears 14 on the other side drive the connecting seat 11 on the other side to rotate through the first bevel gears 12 on the other side, so that the two door panels 2 synchronously rotate until the two door panels are closed, sealing strips 33 are arranged on the edges of the door panels 2, and sealing grooves 34 matched with the sealing strips 33 are formed on the inner side surfaces of the door panels 2, sealing strip 33 can imbed in seal groove 34 when door plant 2 is closed, can carry out the sealing of certain degree to the closed joint of door plant 2 and door frame 1 like this, reduce the flue gas circulation, thereby can play fine isolated effect, door plant 2 self-closing has higher security, need not artificial being close door plant 2 and closes the operation, when the fire disaster appears, can be safe and timely 2 self-closing of control door plant, thereby can in time effectually cut off the intensity of a fire and stretch, and the procedure is predetermine to the motor 9 accessible and move, smoke alarm 3 detects behind the condition of a fire, through this work of predetermineeing program control motor 9, thereby realize self-closing, this mode only is applicable to unmanned place, for example, unmanned computer lab, the fire prevention in factory is kept apart, need cautiously to use.

Three groups of inserted bars 22 are arranged in the door panel 2 through a rotating mechanism, the rotating mechanism is automatically triggered in the closing process of the two groups of door panels 2, the rotating mechanism comprises a movable groove 15, the center of the door panel 2 is provided with the movable groove 15, a turntable 16 is rotatably arranged in the movable groove 15, the front end of the turntable 16 is provided with a stop bar 17, the stop bar 17 is arranged on the front side of the door panel 2, the front end edge of the door panel 2 is provided with a stop 18 matched with the stop bar 17, the rear end of the turntable 16 is provided with a handle 19, the handle 19 is arranged on the rear side of the door panel 2, three groups of connecting bars 20 are rotatably arranged on the turntable 16 in an annular array manner, the upper and lower ends of the door panel 2 and one end close to the door frame 1 are both provided with guide grooves 21, the inserted bars 22 are slidably connected in the guide grooves 21, one end of the inserted bars 22 close to the turntable 16 is rotatably connected with the ends of the connecting bars 20, and balls 23 are rotatably arranged on the inner walls of the four sides of the guide grooves 21, the surface of the inserted link 22 is provided with a guide rail 24 adapted to the ball 23, the ball 23 rolls in the guide rail 24, the ball 23 can reduce the moving resistance of the inserted link 22 in the guide groove 21, the inner side of the door frame 1 is provided with a slot 25 adapted to the inserted link 22, the inner diameter of the slot 25 is adapted to the outer diameter of the inserted link 22, the outer end of the inserted link 22 is arc-shaped, the arc-shaped outer end of the inserted link 22 is easily inserted into the slot 25, the inner wall of the opening of the lower slot 25 is uniformly provided with hole-shielding bristles 26, as shown in fig. 10, the upper opening of the lower slot 25 is equal to or lower than the height of the installation ground, and it is required to ensure that the ground is evenly covered without any doorsill and the like, when the inserted link 22 at the lower side extends out, such as not aligning with the slot 25, the lower inserted link 22 contacts the ground and the other two groups of inserted links 22 cannot be inserted into the corresponding slots 25, the lower inserted link 22 is dragged along the ground until the door panel 2 is completely closed, the lower side inserted bar 22 will aim at the slot 25, and the lower side inserted bar 22 will be inserted into the slot 25, so that the blind hole hair 26 will rotate normally, and the other two groups of inserted bars 22 will also be inserted into the corresponding slot 25, the blind hole hair 26 can reduce the garbage entering into the lower side slot 25 in the daily use process, avoid the slot 25 being blocked, the inserted bar 22 will be inserted into the slot 25 after the door panel 2 is closed, to support and reinforce the door panel 2, as shown in fig. 4 to 8, when the steel wire 32 pulls the transverse inserted bar 22, the transverse inserted bar 22 will pull the rotary disc 16 to rotate in the movable slot 15 through the connecting bar 20, after the movable slot 15 rotates, will drive the other two groups of connecting bars 20 to push out the inserted bar 22 towards the opening of the guide slot 21, the inserted bar 22 will slide out of the guide slot 21 smoothly through the balls 23 and the guide rails 24, when the lower side inserted bar 22 is right opposite to the slot 25, the end of the inserted bar 22 will be inserted into the slot 25 after sliding out of the guide slot 21, thereby to support and reinforce the door panel 2, to promote its protection and anti-blocking effect, and when the lower side inserted bar 22 is opposite to the door panel 2, and the door panel 2 rotates, and the door panel 17 can be locked, thereby when the door panel 2 is opened or closed, the door panel 17, the door panel can be closed by the manual door panel 2 is closed, and the manual door panel 17, and the manual door.

The left side and the right side of the door frame 1 are provided with lifting mechanisms, each lifting mechanism comprises a sliding groove 27, the sliding grooves 27 are symmetrically formed in the left end and the right end of the door frame 1, screw rods 28 are rotatably mounted in the sliding grooves 27, the upper end and the lower end of each screw rod 28 are respectively connected with the upper connecting seat 11 and the lower connecting seat 11, screw sleeves 29 are sleeved on the screw rods 28 through threads, the screw sleeves 29 are fixedly mounted in sleeve blocks 30, the sleeve blocks 30 slide in the sliding grooves 27, sliding blocks 31 are connected in the sliding grooves 27 in a sliding mode, the sliding blocks 31 are fixedly connected with the sleeve blocks 30, the upper ends of the sliding blocks 31 are inclined planes, the heights of the upper surfaces of the sliding blocks 31 are gradually increased from one sides, close to the door panel 2, of the sides, close to the door panel 2, the edges of the upper ends of the sliding blocks 31 are arc-shaped, the sliding blocks 31 are fixedly connected with the lower ends of steel wires 32, the upper ends of the steel wires 32 are fixedly connected with one ends, close to the screw rods 22, transversely arranged in the door panel 2, the lifting mechanisms are triggered when the connecting seats 11 rotate, and will drive the rotary mechanism to rotate, a set of inserted link 22 links with lifting mechanism, as shown in fig. 4, fig. 8, fig. 11 and fig. 12, when the connecting seat 11 rotates, the threaded spindle 28 will be driven to rotate, and the threaded sleeve 29 sleeved on the threaded spindle 28 will drive the sleeve block 30 and the slide block 31 to lift in the chute 27 through the thread action, when the door panel 2 is closed, the connecting seat 11 will rotate to cause the slide block 31 to move downward along the chute 27, when the door panel 2 is opened, the slide block 31 will move upward, when the slide block 31 moves downward, the transverse inserted link 22 will be pulled by the steel wire 32 to extend out of the guide slot 21, so that the set of inserted link 22 will pull the rotary disk 16 through the connecting rod 20 to rotate and utilize the connecting rod 20 to eject the other two sets of inserted link 22 out of the guide slot 21 into the slot 25 until the end of the inserted link 22 extends out of the guide slot 21 into the slot 25, and when the door panel 2 is closed, the end of the inserted link 22 will be inserted into the slot 25, when the sliding block 31 moves upwards, the inclined surface of the sliding block 31 will abut against the arc surface of the inserting rod 22 and push the inserting rod out of the slot 25, so that the transverse line is forced to be drawn into the guide groove 21 by the inserting rod 22 and drive the rotary disc 16 to rotate and reset, and the rotary disc 16 drives the other two groups of inserting rods 22 to be drawn into the guide groove 21 through the connecting rod 20, and at the moment, the door panel 2 can be rotated and opened.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an alarm and automatic close function's special type prevents fire door is felt to set cigarette, includes door frame (1), door plant (2), smoke alarm (3), audible-visual annunciator (4), solenoid valve (7) and motor (9), its characterized in that: the improved door structure is characterized in that two groups of door plates (2) are symmetrically and rotatably installed on the inner side of the door frame (1), a smoke alarm (3) and an acousto-optic alarm (4) are installed at the upper end of the door frame (1), a spraying mechanism is arranged on the upper side of the door frame (1), a motor (9) is installed on the lower side of the inner wall of the door frame (1), connecting seats (11) are symmetrically arranged on the upper end and the lower end of the end, close to the door frame (1), of the door plate (2), connecting seats (11) are rotatably installed on the inner side of the door plate (2), the output end of the motor (9) is connected with the lower end of the connecting seats (11) at the left lower side, two groups of door plates (2) are fixedly installed with first bevel gears (12) on the connecting seats (11) arranged at the upper end of the door frame (1) through bearings, second bevel gears (14) are symmetrically installed at the left end and the right end of the transmission shafts (13), the second bevel gears (14) are meshed with the first bevel gears (12), three groups of inserting rods (22) are arranged in the door plate (2) through rotating mechanisms, inserting rods (25) matched with the inserting rods (22) are arranged on the inner side of the door frame (1), a left side and a lifting mechanism (33) and a right side of the door plate (2) are arranged at the door frame (2), the inner side surface of the door panel (2) is provided with a sealing groove (34) matched with the sealing strip (33).

2. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: the smoke alarm (3) is installed at the center positions of the front side and the rear side of the upper end of the door frame (1), and the two groups of sound-light alarms (4) are symmetrically installed at the front side and the rear side of the upper end of the door frame (1).

3. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: spray the mechanism and include water pipe (5), water pipe (5) are installed to the upper end of door frame (1), and the both ends of water pipe (5) are arranged in door frame (1) upper end both sides around respectively, the downside equidistance at both ends is provided with shower nozzle (6) around water pipe (5), solenoid valve (7) are installed to the end of water pipe (5), and are provided with threaded connection head (8) on solenoid valve (7).

4. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: install battery (10) in door frame (1), and downside in motor (9) is arranged in battery (10), battery (10) are connected with motor (9) electricity.

5. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: rotary mechanism includes activity groove (15), and the central point of door plant (2) puts and has seted up activity groove (15), and activity groove (15) internal rotation installs carousel (16), annular array rotates on carousel (16) and installs three connecting rods of group (20), guide way (21) have all been seted up at the upper and lower both ends of door plant (2) and the one end that is close to door frame (1), and sliding connection has inserted bar (22) in guide way (21), the one end that inserted bar (22) are close to carousel (16) rotates with the end of connecting rod (20) to be connected.

6. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 5, wherein: stop lever (17) are installed to the front end of carousel (16), and the front side of door plant (2) is arranged in stop lever (17), the front end edge of door plant (2) is provided with dog (18) with stop lever (17) looks adaptation, handle (19) are installed to the rear end of carousel (16), and the rear side of door plant (2) is arranged in handle (19).

7. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 5, wherein: the inner walls of the four sides of the guide groove (21) are rotatably provided with balls (23), the surface of the inserted rod (22) is provided with a guide rail (24) matched with the balls (23), and the balls (23) roll in the guide rail (24).

8. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: the inner diameter of the slot (25) is matched with the outer diameter of the inserted rod (22), the outer end of the inserted rod (22) is arc-shaped, and hole shielding bristles (26) are uniformly arranged on the inner wall of an opening of the slot (25) on the lower side.

9. The special fireproof door with smoke alarm and automatic closing functions as claimed in claim 1, wherein: elevating system includes spout (27), spout (27) have been seted up to the inside symmetry at both ends about door frame (1), and spout (27) internal rotation installs screw rod (28), the upper and lower both ends of screw rod (28) are connected with upper and lower two sets of connecting seat (11) respectively, screw rod (28) are gone up and are cup jointed swivel nut (29) through the screw thread, and swivel nut (29) fixed mounting in nest block (30), nest block (30) slide in spout (27), and sliding connection has slider (31) in spout (27), slider (31) and nest block (30) fixed connection, the upper end of slider (31) is the inclined plane, the upper surface height of slider (31) increases progressively from the one side of keeping away from door plant (2) mutually in one side that is close to door plant (2), the upper end head edge of slider (31) is arc, the lower extreme fixed connection of slider (31) and copper wire (32), and the one end fixed connection that the inserted bar (22) that transversely set up in upper end and the door plant (2) of copper wire (32) are close to screw rod (28).