Fireproof door with smoke exhaust structure

Abstract

The utility model discloses a fireproof door with a smoke exhaust structure, which belongs to the technical field of fireproof doors and comprises a fireproof door body, fireproof glass is fixedly mounted on the inner side of the fireproof door body, and a smoke exhaust channel component is fixedly mounted on the inner side of the fireproof door body and positioned above the fireproof glass. A glass frame is arranged at the position, close to the center, of the smoke exhaust channel assembly, and a closed smoke exhaust device is arranged at the position, located on the outer side of the smoke exhaust channel assembly, of one side of the fireproof door body. Through the arrangement of the closed smoke exhaust device, a user can stop smoke exhaust through the cooperation of the closed shell, the movable plate and other structures in a fire disaster, so that the situation that ventilation in the door is poor is better handled, and the user can accelerate the smoke exhaust speed through the cooperation of the draught fan, the connecting pipe and other structures when needed; and therefore, the working requirements under different conditions are better met, and the working capacity of the fireproof door is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fire door technology, specifically relating to a fire door with a smoke exhaust structure. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, and other similar locations.

[0003] Chinese patent application number 202420160958.6 discloses a fire door with a smoke exhaust structure, including a fire door body, a fireproof glass fixedly installed in the middle of the fire door body, a smoke exhaust chamber at the upper end of the fireproof glass, smoke exhaust channels fixedly installed on both the front and rear sides of the smoke exhaust chamber, and a glass frame fixedly installed inside the smoke exhaust chamber. This utility model's technical solution, through the design of the fire door body, smoke hangers, and fireproof glass, allows the organic solvent inside the glass frame to expand and crack due to high temperatures during a fire, thus opening the smoke exhaust chamber and facilitating the exhaust of smoke. This eliminates the inconvenience of manual operation due to the high surface temperature of the fire door after a fire. Furthermore, the grooves on the multiple smoke hangers trap some of the smoke particles in the exhaust, reducing the amount of smoke particles in the exhaust and further reducing the risk of smoke inhalation by trapped personnel.

[0004] 1. The aforementioned patent has the problem that it cannot prevent smoke exhaust during a fire and cannot accelerate the smoke exhaust speed when needed, thereby reducing the working capacity of the fire door; 2. The aforementioned patent has the problem that it cannot clean the side of the fireproof glass facing outward from inside the door, which can easily affect the observation of the outside situation by the people inside the door, thereby reducing the practicality of the fire door. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a fire door with a smoke exhaust structure, characterized by high working capacity and strong practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire door with a smoke exhaust structure, comprising a fire door body, fireproof glass fixedly installed on the inner side of the fire door body, a smoke exhaust duct assembly fixedly installed on the inner side of the fire door body above the fireproof glass, a glass frame provided near the center of the smoke exhaust duct assembly, a closed smoke extraction device provided on one side of the fire door body outside the smoke exhaust duct assembly, and an auxiliary cleaning device provided on the outer side of the fireproof glass.

[0007] Preferably, the enclosed smoke extraction device includes a lead screw, a smoke extraction component, a sealing shell, and a movable plate. The lead screw is mounted on one side of the fire door body and above the smoke exhaust duct component via a bearing. The movable plate is threaded onto the outside of the lead screw. The sealing shell is fixedly installed below the movable plate and outside the smoke exhaust duct component. The smoke extraction component is provided on the side of the sealing shell away from the fire door body.

[0008] Preferably, the enclosed smoke extraction device further includes a guide rod, which is fixedly installed on one side of the fire door body and above the lead screw.

[0009] Preferably, the smoke extraction assembly includes a connecting pipe, a valve, a threaded plate, a fan, a battery, a connecting cylinder, and a filter. A threaded plate is provided on the side of the sealed shell away from the fire door body. The sealed shell and the threaded plate are connected by a connecting pipe. A valve is fixedly installed near the center of the connecting pipe. A filter is fixedly installed on the inner side of the connecting pipe. A connecting cylinder is installed on the outer side of the threaded plate via threads. A fan is fixedly installed on the side of the connecting cylinder away from the valve. A battery is fixedly installed above the fan.

[0010] Preferably, the auxiliary cleaning device includes a rotating shaft, a connecting plate, flame-retardant cotton, and a rotating plate. The rotating shaft is installed on the inner side of the fire door body and below the fireproof glass via a bearing. A rotating plate is fixedly installed on one side of the rotating shaft. A connecting plate is fixedly installed on the side of the rotating shaft away from the rotating plate. Flame-retardant cotton is fixedly installed on the side of the connecting plate close to the fireproof glass and above the rotating shaft.

[0011] Preferably, the auxiliary cleaning device further includes screws, with screws threaded onto the top of the rotating plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up a closed smoke extraction device, allows users to prevent smoke extraction during a fire through the cooperation of the closed shell and movable plate, thereby better dealing with situations such as poor ventilation inside the door. Furthermore, users can accelerate the smoke extraction speed through the cooperation of the fan and connecting pipe when needed, thus better meeting the working needs in different situations and improving the working capacity of the fire door.

[0014] 2. By setting up an auxiliary cleaning device, this utility model allows users to clean the side of the fireproof glass facing outwards when needed, using flame-retardant cotton and a rotating shaft, thereby reducing the possibility of adverse effects on people inside the door when observing the outside situation, and thus improving the practicality of the fireproof door. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a three-dimensional sectional view of the present invention;

[0017] Figure 3 This is a three-dimensional sectional view of the enclosed smoke extraction device of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the auxiliary cleaning device of this utility model.

[0019] In the diagram: 1. Fire door body; 2. Enclosed smoke extraction device; 21. Screw rod; 22. Smoke extraction assembly; 221. Connecting pipe; 222. Valve; 223. Threaded plate; 224. Fan; 225. Battery; 226. Connecting cylinder; 227. Filter screen; 23. Enclosed shell; 24. Guide rod; 25. Moving plate; 3. Fireproof glass; 4. Auxiliary cleaning device; 41. Rotating shaft; 42. Connecting plate; 43. Flame retardant cotton; 44. Screw; 45. Rotating plate; 5. Glass frame; 6. Smoke exhaust duct assembly. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figure 1-4 The present invention provides the following technical solution: a fire door with a smoke exhaust structure, including a fire door body 1, a fireproof glass 3 fixedly installed on the inner side of the fire door body 1, a smoke exhaust duct assembly 6 fixedly installed on the inner side of the fire door body 1 and above the fireproof glass 3, a glass frame 5 provided near the center of the smoke exhaust duct assembly 6, a closed smoke extraction device 2 provided on one side of the fire door body 1 and outside the smoke exhaust duct assembly 6, and an auxiliary cleaning device 4 provided on the outside of the fireproof glass 3.

[0023] Specifically, the enclosed smoke extraction device 2 includes a lead screw 21, a smoke extraction assembly 22, an enclosed shell 23, and a movable plate 25. The lead screw 21 is mounted on one side of the fire door body 1 and above the smoke exhaust duct assembly 6 via a bearing. The movable plate 25 is threaded onto the outside of the lead screw 21. The enclosed shell 23 is fixedly installed below the movable plate 25 and outside the smoke exhaust duct assembly 6. The smoke extraction assembly 22 is provided on the side of the enclosed shell 23 away from the fire door body 1.

[0024] By adopting the above technical solution, users can prevent smoke exhaust in the event of a fire by using the combination of the enclosed shell 23 and the movable plate 25, thereby better dealing with situations such as poor ventilation inside the door and meeting the needs of users.

[0025] Specifically, the enclosed smoke extraction device 2 also includes a guide rod 24, which is fixedly installed on one side of the fire door body 1 and above the screw rod 21.

[0026] By adopting the above technical solution, the fire door can guide the movement of the movable plate 25 through the guide rod 24, thereby preventing the movable plate 25 from rotating or deviating during movement, and thus ensuring the normal operation of the work.

[0027] Specifically, the smoke extraction assembly 22 includes a connecting pipe 221, a valve 222, a threaded plate 223, a fan 224, a battery 225, a connecting cylinder 226, and a filter screen 227. The threaded plate 223 is provided on the side of the enclosed shell 23 away from the fire door body 1. The enclosed shell 23 and the threaded plate 223 are connected by the connecting pipe 221. The valve 222 is fixedly installed near the center of the connecting pipe 221. The filter screen 227 is fixedly installed on the inner side of the connecting pipe 221. The connecting cylinder 226 is installed on the outer side of the threaded plate 223 by threads. The fan 224 is fixedly installed on the side of the connecting cylinder 226 away from the valve 222. The battery 225 is fixedly installed above the fan 224.

[0028] By adopting the above technical solution, users can accelerate the smoke exhaust speed by cooperating with structures such as the fan 224 and the connecting pipe 221 when needed, thereby better meeting the work needs in different situations.

[0029] In this embodiment, when a fire door is needed, the user installs it in the work position. In the event of a fire, the glass frame 5 shatters due to heat. The user can rotate the lead screw 21 in the enclosed smoke extraction device 2. The lead screw 21 is threadedly connected to the moving plate 25, and the guide rod 24 is slidably connected to the moving plate 25. Therefore, the lead screw 21 drives the moving plate 25 and the enclosed shell 23 below it to move until the enclosed shell 23 no longer covers one end of the smoke exhaust duct assembly 6, and the smoke outside the door is discharged through the smoke exhaust duct assembly 6. When encountering situations such as poor ventilation inside the door, the user can rotate the lead screw 21 in the opposite direction, so that the enclosed shell 23 covers one end of the smoke exhaust duct assembly 6, preventing the smoke from entering. Okay, when it is necessary to speed up the smoke extraction, the screw 21 is rotated in the opposite direction so that the closed shell 23 covers one end of the smoke extraction channel assembly 6. Then, the connecting cylinder 226 in the smoke extraction assembly 22 is installed on the threaded plate 223 through the thread. Then, the valve 222 is opened and the fan 224 is started. Under the action of the fan 224, the smoke inside the door passes through the smoke extraction channel assembly 6, the closed shell 23, the connecting pipe 221 and the connecting cylinder 226, and finally passes through the fan 224 and is discharged, thereby speeding up the smoke extraction. The filter screen 227 plays the role of blocking impurities, thus enabling the use of the fire door. Users can see the situation outside the door through the fireproof glass 3. The battery 225 can power the fan 224.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the auxiliary cleaning device 4 includes a rotating shaft 41, a connecting plate 42, flame-retardant cotton 43, and a rotating plate 45. The rotating shaft 41 is installed on the inner side of the fire door body 1 and below the fireproof glass 3 via a bearing. The rotating plate 45 is fixedly installed on one side of the rotating shaft 41. The connecting plate 42 is fixedly installed on the side of the rotating shaft 41 away from the rotating plate 45. The flame-retardant cotton 43 is fixedly installed on the side of the connecting plate 42 close to the fireproof glass 3 and above the rotating shaft 41.

[0032] By adopting the above technical solution, users can clean the side of the fireproof glass 3 facing outwards from the door when needed, through the cooperation of flame-retardant cotton 43 and rotating shaft 41, thereby reducing the possibility of adverse effects on people inside the door when observing the situation outside.

[0033] Specifically, the auxiliary cleaning device 4 also includes screws 44, which are threaded onto the top of the rotating plate 45.

[0034] By adopting the above technical solution, users can prevent the rotating plate 45 and other structures from rotating when needed by screw 44, thereby preventing the possibility of adverse effects caused by accidental rotation of structures such as flame-retardant cotton 43 and ensuring the normal operation of the work.

[0035] In this embodiment, when unable to leave due to a fire, if the side of the fireproof glass 3 facing outwards is dirty, the user can unscrew the screw 44 on the rotating plate 45 of the auxiliary cleaning device 4 to detach it from the fireproof door body 1. Then, rotate the rotating plate 45 so that it drives the flame-retardant cotton 43 to rotate through the rotating shaft 41 and connecting plate 42, thereby wiping and cleaning the side of the fireproof glass 3 facing outwards, reducing the possibility of adverse effects on the observation of the outside situation by people inside the door.

[0036] The structure and principle of the fire door body 1, fireproof glass 3, glass frame 5, and smoke exhaust channel assembly 6, which consists of a smoke exhaust channel, smoke exhaust chamber, smoke collection hopper, smoke hanging strip, and groove, have been disclosed in Chinese patent application No. 202420160958.6, which discloses a fire door with a smoke exhaust structure. Its working principle is that during use, the glass frame 22 inside the smoke exhaust chamber 21 can be used to seal the smoke exhaust chamber 21, thereby ensuring the airtightness of the fire door. When a fire occurs, the temperature near the fire door body 1 will rise, and the high temperature... The heat causes the organic solution inside the glass frame to expand, causing the glass frame 22 to expand and crack, thus opening the smoke exhaust chamber 21. With the cooperation of the smoke collection hopper 23 and the smoke exhaust channel 2, the smoke can be easily discharged. This eliminates the trouble of manually operating the fire door due to the high surface temperature after a fire. At the same time, the smoke-hanging strips 24 in the smoke collection hopper 23, through the grooves 25 on the multiple smoke-hanging strips 24, intercept some of the smoke dust in the smoke, thereby reducing the amount of smoke dust in the discharged smoke and further reducing the possibility of smoke dust being inhaled by trapped personnel.

[0037] The working principle and usage process of this utility model are as follows: When a fire door is needed, the user installs the fire door in the working position. In the event of a fire, the glass frame 5 shatters due to heat. The user can rotate the lead screw 21 in the closed smoke extraction device 2. The lead screw 21 is threadedly connected to the moving plate 25, and the guide rod 24 is slidably connected to the moving plate 25. Therefore, the lead screw 21 drives the moving plate 25 and the closed shell 23 below it to move until the closed shell 23 no longer covers one end of the smoke exhaust channel assembly 6, and the smoke outside the door is discharged through the smoke exhaust channel assembly 6. When encountering poor ventilation inside the door, the user can rotate the lead screw 21 in the opposite direction, so that the closed shell 23 covers one end of the smoke exhaust channel assembly 6, preventing smoke exhaust. When it is necessary to speed up the smoke exhaust, the lead screw 21 is rotated in the opposite direction again, so that the closed shell 23 covers one end of the smoke exhaust channel assembly 6. Then, the connecting cylinder 226 in the smoke extraction assembly 22 is installed in the screw via threads. On the fire door 223, the valve 222 is opened and the fan 224 is started. Under the action of the fan 224, the smoke inside the door passes through the smoke exhaust channel assembly 6, the sealed shell 23, the connecting pipe 221 and the connecting cylinder 226, and finally passes through the fan 224 to be discharged, thereby accelerating the smoke exhaust speed. The filter screen 227 plays the role of blocking impurities, thus enabling the fire door to be used. Users can view the situation outside the door through the fireproof glass 3. The battery 225 can power the fan 224. In case of fire and inability to go out, if the side of the fireproof glass 3 facing the outside of the door is dirty, the user can unscrew the screw 44 on the rotating plate 45 in the auxiliary cleaning device 4 to detach it from the fire door body 1, and then rotate the rotating plate 45 so that it drives the flame-retardant cotton 43 to rotate through the rotating shaft 41 and the connecting plate 42, thereby wiping and cleaning the side of the fireproof glass 3 facing the outside of the door, reducing the possibility of adverse effects on the observation of the outside situation by the people inside the door.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire door with a smoke exhaust structure, comprising a fire door body (1), wherein a fireproof glass (3) is fixedly installed on the inner side of the fire door body (1), and a smoke exhaust duct assembly (6) is fixedly installed on the inner side of the fire door body (1) above the fireproof glass (3), wherein a glass frame (5) is provided near the center of the smoke exhaust duct assembly (6), characterized in that: A closed smoke extraction device (2) is provided on one side of the fire door body (1) and outside the smoke exhaust channel assembly (6), and an auxiliary cleaning device (4) is provided on the outside of the fireproof glass (3).

2. A fire door with a smoke exhaust structure according to claim 1, characterized in that: The enclosed smoke extraction device (2) includes a lead screw (21), a smoke extraction assembly (22), an enclosed shell (23), and a movable plate (25). The lead screw (21) is installed on one side of the fire door body (1) and above the smoke exhaust duct assembly (6) via a bearing. The movable plate (25) is installed on the outside of the lead screw (21) via a thread. The enclosed shell (23) is fixedly installed below the movable plate (25) and outside the smoke exhaust duct assembly (6). The smoke extraction assembly (22) is provided on the side of the enclosed shell (23) away from the fire door body (1).

3. A fire door with a smoke exhaust structure according to claim 2, characterized in that: The enclosed smoke extraction device (2) also includes a guide rod (24), which is fixedly installed on one side of the fire door body (1) and above the screw rod (21).

4. A fire door with a smoke exhaust structure according to claim 2, characterized in that: The smoke extraction assembly (22) includes a connecting pipe (221), a valve (222), a threaded plate (223), a fan (224), a battery (225), a connecting cylinder (226), and a filter (227). A threaded plate (223) is provided on the side of the closed shell (23) away from the fire door body (1). The closed shell (23) and the threaded plate (223) are connected by a connecting pipe (221). A valve (222) is fixedly installed near the center of the connecting pipe (221). A filter (227) is fixedly installed on the inner side of the connecting pipe (221). A connecting cylinder (226) is installed on the outer side of the threaded plate (223) by threads. A fan (224) is fixedly installed on the side of the connecting cylinder (226) away from the valve (222). A battery (225) is fixedly installed above the fan (224).

5. A fire door with a smoke exhaust structure according to claim 1, characterized in that: The auxiliary cleaning device (4) includes a rotating shaft (41), a connecting plate (42), flame-retardant cotton (43), and a rotating plate (45). The rotating shaft (41) is installed on the inner side of the fire door body (1) and below the fireproof glass (3) via a bearing. The rotating plate (45) is fixedly installed on one side of the rotating shaft (41). The connecting plate (42) is fixedly installed on the side of the rotating shaft (41) away from the rotating plate (45). The flame-retardant cotton (43) is fixedly installed on the side of the connecting plate (42) close to the fireproof glass (3) and above the rotating shaft (41).

6. A fire door with a smoke exhaust structure according to claim 5, characterized in that: The auxiliary cleaning device (4) also includes screws (44), and the top of the rotating plate (45) is threaded with screws (44).

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