CN211258366U - Ventilating type fireproof door - Google Patents

Abstract

The utility model discloses a ventilated fire door, which relates to the technical field of door bodies and comprises a door body, wherein the door body is provided with a first fixed plate and a second fixed plate, the first fixed plate is provided with a first ventilation hole, the second fixed plate is divided into a closed part and a ventilation part, the ventilation part is provided with a second ventilation hole, the door body is also provided with a ventilation structure, the ventilation structure comprises a rotating plate, a driving motor, a power supply and a controller, the rotating plate is rotationally connected with the closed part, the power supply is electrically connected with the controller, the controller is electrically connected with the driving motor, the driving motor is in transmission connection with the rotating plate, when the driving motor rotates forwards, the driving motor drives the rotating plate to be turned to the second ventilation hole, when the driving motor rotates backwards, the driving motor drives the rotating plate to be turned to cover the second ventilation hole, the ventilation structure switches on the first fixed plate and the second fixed plate, thereby switching on the external environment and the staircase, realize the air circulation and flow, improve the air permeability and the air quality of stairwell.

Description

Ventilating type fireproof door

Technical Field

The utility model relates to a door body technical field, more specifically say, it relates to a fire door is prevented to ventilation formula.

Background

The fireproof door is a door which can meet the requirements of fire-resistant stability, integrity and heat insulation within a certain time, and is generally a fireproof partition with certain fire resistance arranged in a fireproof partition room, an evacuation staircase, a vertical shaft and the like.

Among the prior art, most prevent that fire door is whole all to be the entity thing, some prevent also can set up the window on the fire door and be used for installing the glass window, but the glass window often also can not be opened, for example at the staircase, in order to guarantee the effect that prevents the intensity of a fire when preventing fire door and taking place the conflagration and stretch, prevent that fire door is generally in the closed condition in advance, lead to being in the separation state between staircase and the external environment in ordinary time, the staircase is in the state of not ventilating for a long time, lead to the ventilation performance of staircase poor, thereby the air flow nature worsens influences the air quality, consequently, the existence is treated the improvement.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a fire door is prevented to ventilation formula, through setting up first fixed plate, second fixed plate and ventilation structure in perforation department, the ventilation structure switches on first fixed plate and second fixed plate to make switching on of external environment and staircase, realize that air circulation flows, improve the air permeability and the air quality of staircase, concrete scheme is as follows:

a ventilation type fireproof door comprises a door body, wherein a through hole is formed in the door body in a penetrating mode, a first fixing plate and a second fixing plate are fixedly installed at the through hole of the door body, the first fixing plate and the second fixing plate seal the through hole to form a cavity, a first ventilation hole is formed in the first fixing plate, the second fixing plate is divided into a sealing portion and a ventilation portion, a second ventilation hole is formed in the ventilation portion, a ventilation structure is further arranged on the door body and comprises a rotating plate, a driving motor, a power supply and a controller, the rotating plate is rotatably connected to the sealing portion, the power supply is electrically connected with the controller, the controller is electrically connected with the driving motor to control the driving motor to rotate forwards or backwards, and the driving motor is in transmission connection with the rotating plate;

in the initial state, the rotating plate covers the second ventilation hole, when the driving motor rotates forwards, the driving motor drives the rotating plate to rotate to conduct the second ventilation hole, and when the driving motor rotates backwards, the driving motor drives the rotating plate to rotate to cover the second ventilation hole.

Through the technical scheme, when the stair well needs to be ventilated circularly, a power supply is turned on, the controller is started, an operator drives the driving motor to rotate through controlling the controller, the driving motor drives the rotating plate to rotate, so that the rotating plate rotates from the position right in front of the ventilation part to the position right in front of the closed part, the rotating plate does not cover the second ventilation hole any more, the second ventilation hole is communicated with the cavity and the first ventilation hole, the two sides of the door body are communicated, so that the stair well is communicated with the external environment, the air of the external environment and the air of the stair well circularly flow, the space of the stair well is replaced, the ventilation performance and the air quality of the stair well are improved, after the stair well is ventilated for a period of time, the operator drives the driving motor to reversely rotate through controlling the controller, so that the rotating plate reversely rotates to cover the ventilation part, the second ventilation hole is covered, and the first ventilation hole and the second ventilation hole are not communicated any more, thereby the perforation of the door body is sealed, and the fireproof performance of the door body is ensured.

Further, a timing switch is arranged on the door body, the timing switch is electrically connected with the power supply and the controller, when the timing switch is in an open state, the rotating plate rotates to be conducted with the second ventilation hole, and when the timing switch is in a closed state, the rotating plate rotates to cover the second ventilation hole.

Through above-mentioned technical scheme, the setting of time switch reduces operating personnel's operating procedure, realizes the time of air cycle between timing control external environment and the stairwell and the time of timing control external environment and stairwell separation, avoids leading to second ventilation hole and first ventilation hole conducting state because operating personnel's carelessness when the conflagration breaing out to lead to smog to stretch and get into the stairwell, influence the air quality, lead to the personnel of fleing to inhale smog and take place health problem.

Further, the second fixed plate is disc-shaped, the area of the closed part is equal to that of the ventilation part, the rotating plate is semicircular, and the area of the rotating plate is larger than one half of that of the second fixed plate.

Through above-mentioned technical scheme, airtight portion, ventilation portion and rotor plate all are half circular for the rotor plate from hiding airtight portion rotate 180 back alright cover ventilation portion, and half circular setting reduces the preparation material, avoids setting to square form and leads to the increase of cost of manufacture.

Furthermore, the rotating plate is rotatably connected with the closed part through a rotating shaft, a driven gear is coaxially arranged on the rotating shaft, a driving gear is coaxially arranged on an output shaft of the driving motor, and the driving gear is meshed with the driven gear.

Through above-mentioned technical scheme, driving motor and rotor plate's transmission connection is realized to the meshing of driving gear and driven gear for the rotor plate rotates steadily.

Further, a sealing layer is covered on the side face, facing the second fixing plate, of the rotating plate.

Through above-mentioned technical scheme, the leakproofness between setting up increase rotor plate and the second ventilative hole of sealing layer for reduce the possibility that smog spills over from the gap between rotor plate and the ventilation portion when taking place the conflagration, reduce the influence to staircase air quality.

Furthermore, the first fixing plate is located in the through hole, and the side face, away from the second fixing plate, of the first fixing plate is flush with the surface of the door body.

Through above-mentioned technical scheme for the door body surface smoothness that is in the external environment guarantees the integrity of the door body, because the flow of people of external environment is big, avoids the door body to receive external personnel's destruction or the collision of object, leads to damaging.

Furthermore, the position of the through hole is close to the bottom of the door body.

Through above-mentioned technical scheme, when the conflagration breaing out, because the existence of steam can be in the upper strata of air bed, keep away from ground, when the perforation is in the position that is close to ground for smog is difficult to get into the stairwell from the gap between second fixed plate and the rotor plate, guarantees the quality of stairwell air.

Further, an air adsorption layer is arranged in the cavity.

Through above-mentioned technical scheme, because the stairwell is in there is the peculiar smell in airtight back air for the peculiar smell of air adsorption layer in with external environment and stairwell adsorbs in the air cycle in-process, improves the weight of stairwell air.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) through setting up the first fixed plate, second fixed plate and ventilation structure, open the power, the controller starts, operating personnel drives driving motor through controlling the controller and rotates, driving motor drives the rotor plate and rotates, make the rotor plate rotate to being in the dead ahead of airtight portion from being in the dead ahead of ventilation portion, thereby make the rotor plate no longer cover the second ventilative hole, second ventilative hole and cavity, the first ventilative hole switches on, the both sides of the door body realize switching on, thereby realize the switching on of stairwell and external environment, the air of external environment circulates with the air of stairwell and flows, realize the replacement to the space of stairwell, improve the air permeability and the air quality of stairwell;

(2) through arranging the through hole at the bottom of the door body, smoke is difficult to enter the staircase from a gap between the second fixing plate and the rotating plate in case of fire, so that the quality of air in the staircase is ensured;

(3) through setting up the air adsorption layer for the peculiar smell of air adsorbs in air cycle in-process air adsorption layer with external environment and staircase, improves the weight of staircase air.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the present invention;

fig. 2 is a schematic structural view showing a state where the second ventilation hole is covered by the rotating plate of the present invention;

fig. 3 is a schematic structural view showing positions of the first fixing plate and the first ventilation hole of the present invention;

FIG. 4 is a cross-sectional view of the air adsorption layer in the display cavity of the present invention;

fig. 5 is a simplified schematic diagram showing the connection relationship of the power supply, the timing switch, the controller and the driving motor.

Reference numerals: 1. a door body; 011. perforating; 012. a cavity; 2. a first fixing plate; 21. a first ventilation hole; 3. a sealing part; 4. a ventilation portion; 42. a second ventilation hole; 5. a rotating plate; 6. a drive motor; 7. a rotating shaft; 8. a driven gear; 9. a driving gear; 10. a sealing layer; 11. an air adsorption layer; 12. a timing switch; 13. a power source; 14. and a controller.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1, a ventilation type fireproof door, including the door body 1, the door body 1 is gone up to run through and has been seted up the perforation 011, the door body 1 has first fixed plate 2 and second fixed plate in perforation 011 department fixed mounting, first fixed plate 2, the second fixed plate seals perforation 011 and forms cavity 012, first ventilative hole 21 has been seted up to first fixed plate 2, the ventilative hole 42 of second has been seted up on the second fixed plate, still be equipped with ventilation structure on the door body 1, the first ventilative hole 21 of ventilation structure control switches on with the ventilative hole 42 of second and realizes switching on between external environment and the staircase to realize air circulation.

As shown in fig. 3, the first fixing plate 2 is located in the through hole 011, and the side of the first fixing plate 2 facing away from the second fixing plate is flush with the surface of the door body 1, so as to maintain the flatness of the door body 1 facing the side of the external environment. With reference to fig. 1 and 2, the second fixing plate is also in the through hole 011, and the side surface deviating from the first fixing plate 2 is flush with the surface of the door body 1, the second fixing plate is divided into the closed portion 3 and the ventilation portion 4, the second fixing plate is disc-shaped, the area of the closed portion 3 is equal to that of the ventilation portion 4, and the ventilation portion 4 is provided with a plurality of second ventilation holes 42.

With reference to fig. 1 and 5, the ventilation structure includes a rotating plate 5, a driving motor 6, a power supply 13 and a controller 14, the rotating plate 5 is semicircular, the area of the rotating plate 5 is larger than half of the area of the second fixing plate, the rotating plate 5 is rotatably connected with the sealing portion 3 through a rotating shaft 7, the rotating shaft 7 is rotatably connected with the sealing portion 3, and the rotating plate 5 is fixedly connected with the rotating shaft 7. The driving motor 6 is fixedly connected with the door body 1 through the fixing seat, the driven gear 8 is coaxially and fixedly arranged on the rotating shaft 7, the driving gear 9 is coaxially and fixedly arranged on an output shaft of the driving motor 6, and the driving gear 9 is meshed with the driven gear 8, so that the driving motor 6 is in transmission connection with the rotating plate 5. The controller 14 is a PLC controller and can be a Siemens S7300 programmable controller, the power supply 13 is electrically connected with the controller 14 through a lead, and the output end of the controller 14 is electrically connected with the driving motor 6 through a lead.

Under the initial condition, rotor plate 5 is in the dead ahead of ventilation portion 4, rotor plate 5 covers second ventilation hole 42, when needing to circulate the ventilation to the staircase, through controller 14 control driving motor 6 corotation, drive rotor plate 5 and rotate 180, make rotor plate 5 be in the dead ahead of airtight portion 3, second ventilation hole 42 loses rotor plate 5 cover realize with cavity 012, switching on of first ventilation hole 21, thereby make external environment and staircase carry out air cycle. When a fire disaster happens, the controller 14 drives the driving motor 6 to rotate reversely, the rotating plate 5 is driven to rotate reversely by 180 degrees, and the rotating plate 5 covers the second ventilation hole 42 again, so that the second ventilation hole 42 is shielded, and air circulation is blocked.

As shown in fig. 4, preferably, the door body 1 is provided with a time switch 12, the time switch 12 is electrically connected with the power supply 13 through a conducting wire, the time switch 12 is electrically connected with the input end of the controller 14 through a conducting wire, the time switch 12 can be a time control switch with a model number of CN101A in the zhejiang Wenge electric brand, and the time set by the time switch 12 is from 8 am to 6 pm and the duration is 10 hours. The controller 14 is set to control the rotation of the drive motor 6 for a predetermined time immediately after the energization state is entered, and to control the reverse rotation of the drive motor 6 for a predetermined time when the timer switch 12 is turned off. Time switch 12 is opened 8 the morning, make controller 14 be in the on-state, driving motor 6 drives rotor plate 5 and rotates 180 to switch on second ventilation hole 42, time switch 12 closes 6 the afternoon, controller 14 reacts and drives driving motor 6 and rotate, rotor plate 5 counter-rotation 180 to cover second ventilation hole 42, to sum up, in the day, the realization carries out fixed length air cycle to the staircase, and when taking place the conflagration, operating personnel can directly close time switch 12, make controller 14 control driving motor 6 in advance drive rotor plate 5 and rotate to cover second ventilation hole 42.

As shown in fig. 4, optimally, the sealing layer 10 is coated on the side surface of the rotating plate 5 facing the second fixing plate, the sealing layer 10 is made of soft fluororubber and is bonded on the surface of the rotating plate 5, so that the rotating plate 5 is attached to the surface of the door body 1 and the surface of the second fixing plate, the sealing performance is improved when the rotating plate 5 covers the second ventilation holes 42, and the possibility that smoke enters the staircase from gaps in the case of fire is reduced.

Optimized, the position of perforation 011 is close to the bottom setting of the door body 1 and is close to ground setting promptly, is provided with air adsorption layer 11 in the cavity 012, and air adsorption layer 11 adopts the active carbon, and when the conflagration breaing out, smog is difficult to get into the staircase from perforation 011 because the effect of hot gas flow floats on the upper strata of air, and air adsorption layer 11 still can reach the effect of adsorbing smog and peculiar smell, reduces the influence to staircase air quality.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a ventilation type fireproof door, includes the door body (1), its characterized in that, the perforation (011) has been seted up in running through on the door body (1), the door body (1) in perforation (011) department fixed mounting have first fixed plate (2) and second fixed plate, first fixed plate (2), second fixed plate seal perforation (011) vacuole formation (012), first ventilative hole (21) have been seted up in first fixed plate (2), the second fixed plate divide into airtight portion (3) and ventilation portion (4), ventilation portion (4) are seted up second ventilative hole (42), still be equipped with ventilation structure on the door body (1), ventilation structure includes rotor plate (5), driving motor (6), power (13) and controller (14), rotor plate (5) rotate to be connected in airtight portion (3), the power supply (13) is electrically connected with the controller (14), the controller (14) is electrically connected with the driving motor (6) to control the driving motor (6) to rotate forwards or backwards, and the driving motor (6) is in transmission connection with the rotating plate (5);

under the initial state, rotor plate (5) cover second ventilation hole (42), when driving motor (6) corotation, driving motor (6) drive rotor plate (5) rotate to switch on second ventilation hole (42), when driving motor (6) reversal, driving motor (6) drive rotor plate (5) rotate to cover second ventilation hole (42).

2. The ventilated fire door according to claim 1, wherein a timing switch (12) is arranged on the door body (1), the timing switch (12) is electrically connected with the power supply (13) and the controller (14), when the timing switch (12) is in an open state, the rotating plate (5) rotates to conduct the second ventilation hole (42), and when the timing switch (12) is in a closed state, the rotating plate (5) rotates to cover the second ventilation hole (42).

3. The fire door according to claim 1, characterized in that the second fixed plate is disc-shaped and the closing portion (3) and the ventilation portion (4) have the same area, and the rotating plate (5) has a semicircular shape, and the area of the rotating plate (5) is greater than half of the area of the second fixed plate.

4. The ventilated fire door according to claim 3, wherein the rotating plate (5) is rotatably connected to the sealing portion (3) by a rotating shaft (7), the rotating shaft (7) is coaxially provided with a driven gear (8), an output shaft of the driving motor (6) is coaxially provided with a driving gear (9), and the driving gear (9) is engaged with the driven gear (8).

5. A fire door according to claim 1, characterised in that the side of the pivoting plate (5) facing the second fastening plate is covered with a sealing layer (10).

6. The fire door according to claim 1, characterised in that the first fixing plate (2) is in the perforation (011) and the side of the first fixing plate (2) facing away from the second fixing plate is flush with the door body (1) surface.

7. The ventilated fire door according to claim 1, wherein the perforations (011) are located near the bottom of the door body (1).

8. The ventilated fire door according to claim 1, characterised in that an air-adsorbing layer (11) is arranged inside the cavity (012).

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