CN217783331U

CN217783331U - Prevent fire door with ventilation function

Info

Publication number: CN217783331U
Application number: CN202221257602.1U
Authority: CN
Inventors: 曲春美
Original assignee: Dalian Chunli Fire Equipment Co ltd
Current assignee: Dalian Chunli Fire Equipment Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-11
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a prevent fire door with ventilation function relates to and prevents fire door technical field. The fireproof door with the ventilation function comprises a door plate, wherein a ventilation opening is formed in the surface of the door plate, a dustproof net is fixedly installed on the inner wall of the ventilation opening, a sealing mechanism is arranged inside the door plate and comprises a first sealing plate, and the first sealing plate is slidably installed on the inner wall of the door plate; and the second sealing plate is slidably arranged on the inner wall of the first sealing plate and is elastically connected with the inner wall of the first sealing plate through a memory spring. This prevent fire door with ventilation function through setting up cavity and activity stopper, can utilize gas expansion to drive the second closing plate and seal the vent when preventing fire door's temperature rising, avoids leading to the unable circumstances of closing in time of vent to take place because of smoke transducer is out of order.

Description

Prevent fire door with ventilation function

Technical Field

The utility model relates to a prevent fire door technical field, specifically be a prevent fire door with ventilation function.

Background

The fireproof door has the functions of preventing fire from spreading and smoke from diffusing besides the function of a common door, can prevent the fire from spreading within a certain time, and ensures personnel to be evacuated.

The steel fireproof door with the ventilation function disclosed in the publication number CN210948373U can drive the motor to work to close the ventilation hole when the smoke sensor detects smoke; another publication No. CN214403303U discloses a high flame-retardant steel fire door with ventilation function, which can drive an electric telescopic rod to work when a smoke sensor detects smoke, and drive a smoke baffle to block a ventilation opening. The problem is that when a fire occurs, the smoke sensor cannot detect smoke accurately and quickly, and the smoke sensor and a circuit thereof are damaged at high temperature, so that the smoke sensor cannot normally operate, and the closing of a ventilation opening is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a prevent fire door with ventilation function has solved the problem that above-mentioned background art mentioned.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a prevent fire door with ventilation function, includes the door plant, the vent has been seted up on the surface of door plant, fixed mounting has the dust screen on the inner wall of vent, the inside of door plant is provided with sealing mechanism, sealing mechanism including:

a first sealing plate slidably mounted on an inner wall of the door panel;

and the second sealing plate is slidably arranged on the inner wall of the first sealing plate and is elastically connected with the inner wall of the first sealing plate through a memory spring.

Preferably, a threaded rod is in spiral transmission on the inner wall of the first sealing plate, one end of the threaded rod penetrates through the first sealing plate and is fixedly connected with a driving motor, and the driving motor is fixedly installed on the inner wall of the door plate.

Preferably, a smoke sensor is fixedly mounted on the surface of the door plate, and the smoke sensor is electrically connected with the driving motor.

Preferably, a heat conducting plate is fixedly mounted on the inner wall of the door panel, and the surface of the heat conducting plate is in contact with the surface of the first sealing plate.

Preferably, a cavity is formed in the first sealing plate, a movable plug is connected to the inner wall of the cavity through a piston, one end of the movable plug is fixedly connected to the surface of the second sealing plate, the other end of the movable plug is fixedly connected to one end of the memory spring, and one end, far away from the movable plug, of the memory spring is fixedly connected to the inner wall of the cavity.

Preferably, the door plate is provided with a receiving groove therein, and the second sealing plate can slide in the receiving groove.

(III) advantageous effects

The utility model provides a prevent fire door with ventilation function. The method has the following beneficial effects:

(1) This prevent fire door with ventilation function, through setting up smoke transducer and driving motor, can drive first closing plate when detecting smog and seal the vent, through setting up cavity and activity stopper, can utilize gas expansion to drive the second closing plate and seal the vent when preventing fire door's temperature rising, and under two manage the same time, can effectively avoid leading to the condition emergence that the vent can't in time close because of smoke transducer is out of order.

(2) This prevent fire door with ventilation function through setting up memory spring, can cooperate with the gas in the cavity, applys sufficient power to the activity stopper, drives its rapid movement, reaches the purpose that promotes first closing plate, also can drive second closing plate automatic re-setting after the temperature reduces simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side sectional view of the present invention;

FIG. 3 is an enlarged view of a part of the structure of the present invention;

fig. 4 is a sectional view of the first sealing plate of the present invention.

In the figure: 1. a door panel; 11. accommodating a tank; 2. a vent; 3. a dust screen; 4. a sealing mechanism; 411. a cavity; 41. a first sealing plate; 42. a drive motor; 43. a threaded rod; 44. a heat conducting plate; 45. a second sealing plate; 46. a memory spring; 47. a movable plug; 5. a smoke sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a fire door with ventilation function, which includes a door panel 1, a handle is disposed on the door panel 1, a vent 2 is disposed on the surface of the door panel 1, two dust screens 3 are fixedly mounted on the inner wall of the vent 2, a sealing mechanism 4 is disposed inside the door panel 1, and the sealing mechanism 4 is disposed between the two dust screens 3.

In this embodiment, sealing mechanism 4 is including driving motor 42, driving motor 42 fixed mounting is on the inner wall of door plant 1, driving motor 42's output fixed mounting has threaded rod 43, threaded rod 43 rotationally installs on the inner wall of door plant 1, the surperficial screw drive of threaded rod 43 has first closing plate 41, install on the inner wall of door plant 1 first closing plate 41 slidable, particularly, set up the helicla flute that suits with threaded rod 43 on the inner wall of first closing plate 41, first closing plate 41 is the rectangle, set up the spout that suits with first closing plate 41 on the door plant 1, when threaded rod 43 rotates, can drive first closing plate 41 and remove along its axis direction.

Specifically, a smoke sensor 5 is fixedly installed on the surface of the door panel 1, the smoke sensor 5 is electrically connected with the driving motor 42, and a control unit is arranged in the door panel 1 and used for receiving a signal of the smoke sensor 5 and controlling the operation of the driving motor 42.

In order to avoid the situation that the smoke sensor 5 does not detect smoke when the fire spreads or the smoke sensor 5 and its circuit are damaged at high temperature, and the sealing effect disappears, a cavity 411 is formed in the first sealing plate 41, one end of the cavity 411, which is far away from the threaded rod 43, is communicated with the outside of the first sealing plate 41, a movable plug 47 is connected to the inner wall of the cavity 411 through a piston, a closed space is formed between the cavity 411 and the movable plug 47, and is filled with gas, which can be air, preferably compressed air, when the temperature of the first sealing plate 41 rises, the gas can be promoted to expand rapidly, the movable plug 47 is pushed to one side, a second sealing plate 45 is fixedly installed on one side of the movable plug 47, which is far away from the sealed space, the second sealing plate 45 is slidably installed on the inner wall of the cavity 411 of the first sealing plate 41, and a receiving groove 11 is formed in the door panel 1, and the second sealing plate 45 can slide in the receiving groove 11.

In order to enable the second sealing plate 45 to automatically reset and further improve the movement effect of the movable plug 47, a memory spring 46 is installed in the cavity 411, one end of the memory spring 46 is fixedly connected with one end of the movable plug 47 far away from the second sealing plate 45, the other end of the memory spring 46 is fixedly connected with the inner wall of the cavity 411, and the memory spring 46 is made of a shape memory alloy and can automatically change the shape when the temperature rises to a certain value to push the movable plug 47 to move.

Further, the heat conducting plate 44 is fixedly mounted on the inner wall of the door panel 1, the surface of the heat conducting plate 44 is in contact with the surface of the first sealing plate 41, the heat conducting plate 44 and the first sealing plate 41 are made of metal, the heat conducting effect is good, and therefore the gas in the cavity 411 and the memory spring 46 can react quickly according to the temperature.

When the utility model is used, in case of fire, if the smoke sensor 5 detects smoke, the starting of the driving motor 42 is controlled by an electric signal, the output end of the driving motor 42 drives the threaded rod 43 to rotate, and the threaded rod 43 drives the first sealing plate 41 to move upwards, so that the vent 2 is sealed;

if the temperature of the door panel 1 rises due to fire, the temperature is transferred to the first sealing plate 41 through the heat conducting plate 44, so that the gas in the cavity 411 is heated and expanded, meanwhile, the memory spring 46 is heated and deformed, the movable plug 47 is further pushed to move upwards, the movable plug 47 drives the second sealing plate 45 to move upwards, and the vent 2 is further sealed;

when the first sealing plate 41 and the second sealing plate 45 move simultaneously, the second sealing plate 45 enters the housing groove 11.

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

Claims

1. The utility model provides a prevent fire door with ventilation function, includes door plant (1), vent (2) have been seted up on the surface of door plant (1), fixed mounting has dust screen (3) on the inner wall of vent (2), the inside of door plant (1) is provided with sealing mechanism (4), its characterized in that: the sealing mechanism (4) comprises:

a first sealing plate (41), the first sealing plate (41) being slidably mounted on an inner wall of the door panel (1);

and a second sealing plate (45), wherein the second sealing plate (45) is slidably arranged on the inner wall of the first sealing plate (41), and the second sealing plate (45) is elastically connected with the inner wall of the first sealing plate (41) through a memory spring (46).

2. The fire door with ventilation function as claimed in claim 1, characterized in that: the inner wall of the first sealing plate (41) is spirally transmitted with a threaded rod (43), one end of the threaded rod (43) penetrates through the first sealing plate (41) and is fixedly connected with a driving motor (42), and the driving motor (42) is fixedly installed on the inner wall of the door plate (1).

3. The fire door with a ventilation function according to claim 2, characterized in that: the smoke sensor (5) is fixedly mounted on the surface of the door plate (1), and the smoke sensor (5) is electrically connected with the driving motor (42).

4. The fire door with ventilation function according to any one of claims 1 to 3, characterized in that: the inner wall of the door plate (1) is fixedly provided with a heat conducting plate (44), and the surface of the heat conducting plate (44) is in contact with the surface of the first sealing plate (41).

5. The fire door with ventilation function according to any one of claims 1 to 3, characterized in that: the cavity (411) is opened in the first sealing plate (41), the piston is connected with a movable plug (47) on the inner wall of the cavity (411), one end of the movable plug (47) is fixedly connected with the surface of the second sealing plate (45), the other end of the movable plug (47) is fixedly connected with one end of a memory spring (46), and one end of the memory spring (46) far away from the movable plug (47) is fixedly connected with the inner wall of the cavity (411).

6. The fire door with ventilation function according to any one of claims 1 to 3, characterized in that: an accommodating groove (11) is formed in the door panel (1), and the second sealing plate (45) can slide in the accommodating groove (11).