Fire ventilation and smoke exhaust device

Abstract

The utility model discloses a fire control ventilation and smoke exhaust device relates to installation equipment technical field, and this fire control ventilation and smoke exhaust device includes ventilation pipeline and the air inlet window of setting at the front end of ventilation pipeline. The utility model discloses the setting of open and close mechanism, drive motor opens, drives the gear of right side to rotate, and the rack of gear rotation takes its outside rotation, and the rack rotation can take inside other three gear together and rotate, and the back of gear is connected with the pivot, and the pivot is connected with the louver switch window, and then can control the blade rotation of louver switch window through the rotation, to reach the function of opening and closing, has played the function of can control ventilation pipeline switch air inlet, avoided when stopping running, and ventilation pipeline cannot close and is in the open state, makes the dust into the inside of pipeline, and the small bug of outside enters, leads to the unnecessary pollution and blockage of pipeline, reduces the ventilation efficiency of ventilation pipeline and reduces the service life of ventilation pipeline.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust device technology, specifically a fire ventilation smoke exhaust device. Background Technology

[0002] Fire ventilation and smoke exhaust systems are a core component of building fire safety systems. They are mainly used to quickly remove smoke, heat, and toxic gases when a fire occurs, buying time for personnel evacuation, fire rescue, and suppression of fire spread. Their technical performance directly affects the casualty rate and property damage in fire accidents, so it is necessary to design a fire ventilation and smoke exhaust system.

[0003] Utility model patent CN212457266U discloses a fire ventilation and smoke extraction device. This device addresses some shortcomings of existing fire ventilation and smoke extraction devices, such as complex and costly construction, and the lack of purification devices inside the ventilation ducts, leading to the inhalation of harmful gases. The fire ventilation and smoke extraction device includes a protective shell with evenly distributed through holes on its inner wall. A first fan is installed on one side inside the protective shell, and a second fan is installed on the side of the protective shell away from the first fan. A fire duct shell is located on one side outside the protective shell, and a connecting mechanism is provided at the connection point between the fire duct shell and the protective shell. This utility model not only simplifies the smoke extraction and ventilation device of the fire protection system and reduces material costs, but also achieves the function of filtering the inhaled air, avoiding harm to the human body from the inhalation of harmful gases.

[0004] However, during use, the device lacks the function of filtering and absorbing harmful gases from the extracted gas, as well as the function of cleaning the dust filter. When not in use, it also lacks the function of controlling the opening and closing of the air inlet. Utility Model Content

[0005] This utility model provides a fire ventilation and smoke exhaust device to solve the problems of existing air inlets that cannot be controlled to close, which leads to the entry of external dust or insects when not in use, reducing ventilation efficiency, and lack of filtration of harmful gases, affecting human health and damaging the external environment.

[0006] This utility model provides the following technical solution: a fire ventilation and smoke exhaust device, including a ventilation duct and an air inlet window set at the front end of the ventilation duct, and further including: a louvered switch window set inside the air inlet window, wherein the left and right sides of the louvered switch window are rotatably connected to an opening and closing mechanism, the opening and closing mechanism including a rotating shaft, a gear, a rack and pinion and a servo motor; and a filter box set behind the ventilation duct, wherein a filter mechanism is installed at the front end of the filter box, the filter mechanism including a dustproof net, a cross cleaning brush, a connecting rod, a drive motor, a filter plate and an absorption plate.

[0007] As a preferred embodiment of this utility model, the rotating shaft is rotatably connected to the left and right sides of the louvered window, a gear is fixedly connected to the outer side of the rotating shaft, a rack is meshed with the outer side of the gear, and a servo motor is fixedly connected to the left side of the gear below.

[0008] As a preferred embodiment of this utility model, the dustproof net is installed on the outside of the front end of the filter box, a cross-shaped cleaning brush is slidably connected to the back of the dustproof net, a connecting rod is fixedly connected to the middle of the back of the cross-shaped cleaning brush, a drive motor is installed at the rear end of the connecting rod, a filter plate is slidably connected to the rear end of the filter box, and an absorption plate is installed behind the filter plate.

[0009] As a preferred embodiment of this utility model, a rotating connecting member is rotatably connected to the rear of the connecting rod, and the rear end of the rotating connecting member is fixedly connected to the front end of the drive motor.

[0010] In a preferred embodiment of this utility model, the drive motor is fitted with a housing, and a support rod is fixedly connected to the outside of the housing.

[0011] As a preferred embodiment of this utility model, a fixing frame is fixedly connected to the top of the support rod, and the outside of the fixing frame is fixedly connected to the inside of the filter box.

[0012] As a preferred embodiment of this utility model, the filter box has a sliding groove on its side, the inside of the sliding groove is slidably connected to the outside of the filter plate, and a handle is fixedly connected to the left side of the filter plate.

[0013] As a preferred embodiment of this utility model, an exhaust box is fixedly connected to the rear of the filter box, an exhaust fan is installed inside the exhaust box, and an airflow sensor is installed at the rear right side of the exhaust box.

[0014] Compared with the prior art, the present invention provides a fire ventilation and smoke exhaust device, which has the following beneficial effects:

[0015] 1. This fire ventilation and smoke exhaust device, through its opening and closing mechanism, activates a drive motor when the device is in use. This motor drives the gear on the right side to rotate, which in turn rotates the external rack. The rack's rotation, in turn, drives the other three internal gears. The back of the gear is connected to a rotating shaft, which in turn connects to a louvered window. By rotating the louvered window, its blades can be controlled to open and close, thus controlling the air intake and ventilation of the ventilation duct. This prevents the ventilation duct from remaining open when not in use or when the device is stopped, thus preventing dust and small insects from entering the duct and causing unnecessary pollution and blockage, reducing ventilation efficiency and shortening the duct's lifespan.

[0016] 2. This fire ventilation and smoke exhaust device, through the setting of the filtration mechanism, allows smoke and dust to enter the filter box through the ventilation duct when the device is in use. First, it passes through the dustproof net, which blocks some of the dust. Then, it passes through the filter plate, which filters out some of the finer dust. After that, it only needs to pass forward through the absorption plate at the rear, which absorbs some of the harmful substances contained in the smoke and dust. This effectively filters out the dust and harmful substances contained in the smoke and dust, avoiding the situation where dust and harmful substances in the smoke and dust are not blocked and absorbed to a certain extent, resulting in them being discharged into the air, affecting the external environment, and even potentially affecting human health and safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the opening and closing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the filter mechanism structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the exhaust box structure of this utility model.

[0021] In the diagram: 1. Ventilation duct; 2. Air inlet window; 3. Louvered window; 4. Opening and closing mechanism; 401. Rotating shaft; 402. Gear; 403. Rack; 404. Servo motor; 5. Filter box; 6. Filtering mechanism; 601. Dustproof net; 602. Cross cleaning brush; 603. Connecting rod; 604. Drive motor; 605. Filter plate; 606. Absorption plate; 7. Rotating connector; 8. Housing; 9. Support rod; 10. Fixing frame; 11. Slide groove; 12. Handle; 13. Exhaust box; 14. Exhaust fan; 15. Airflow sensor. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 4 This utility model discloses a fire ventilation and smoke exhaust device, including a ventilation duct 1 and an air inlet window 2 set at the front end of the ventilation duct 1. It also includes: a louvered switch window 3 set inside the air inlet window 2, with an opening and closing mechanism 4 rotatably connected to the left and right sides of the louvered switch window 3. The opening and closing mechanism 4 includes a rotating shaft 401, a gear 402, a rack 403 and a servo motor 404. A filter box 5 is set behind the ventilation duct 1. A filter mechanism 6 is installed at the front end of the interior of the filter box 5. The filter mechanism 6 includes a dustproof net 601, a cross cleaning brush 602, a connecting rod 603, a drive motor 604, a filter plate 605 and an absorption plate 606.

[0024] Specifically, the rotating shaft 401 is rotatably connected to the left and right sides of the louvered window 3. A gear 402 is fixedly connected to the outer side of the rotating shaft 401. A rack 403 is meshed with the outer side of the gear 402. A servo motor 404 is fixedly connected to the left side of the lower gear 402.

[0025] In this embodiment, the drive motor 604 is turned on, driving the gear 402 on the right side to rotate. The rotation of the gear 402 causes the rack 403 outside it to rotate. The rotation of the rack 403 can cause the other three gears 402 inside to rotate together. The back of the gear 402 is connected to the rotating shaft 401, which is connected to the louvered window 3. Thus, the rotation can be used to control the rotation of the louvered window 3 to achieve the opening and closing function.

[0026] Specifically, the dustproof net 601 is installed on the outside of the front end of the filter box 5. A cross cleaning brush 602 is slidably connected to the back of the dustproof net 601. A connecting rod 603 is fixedly connected to the middle of the back of the cross cleaning brush 602. A drive motor 604 is installed at the rear end of the connecting rod 603. A filter plate 605 is slidably connected to the rear end of the filter box 5. An absorption plate 606 is installed behind the filter plate 605.

[0027] In this embodiment, the smoke and dust enter the filter box 5 through the ventilation duct 1. First, it passes through the dustproof net 601, which blocks a certain amount of dust. Then, it passes through the filter plate 605 to filter out some of the finer dust. After that, it only needs to pass forward through the absorption plate 606 at the rear to absorb some of the harmful substances contained in the smoke and dust.

[0028] Specifically, a rotating connector 7 is rotatably connected to the rear of the connecting rod 603, and the rear end of the rotating connector 7 is fixedly connected to the front end of the drive motor 604.

[0029] In this embodiment, the connecting rod 603 is connected to the drive motor 604 through the rotating connector 7, which facilitates the rotation and dust removal of the cross cleaning brush 602.

[0030] Specifically, the drive motor 604 is externally fitted with a housing 8, and a support rod 9 is fixedly connected to the outside of the housing 8.

[0031] Specifically, a fixing frame 10 is fixedly connected to the top of the support rod 9, and the outside of the fixing frame 10 is fixedly connected to the inside of the filter box 5.

[0032] In this embodiment, a protective housing 8 is installed on the outside of the drive motor 604, and a support rod 9 is also installed on the outside of the housing 8. The support rod 9 is connected to the fixing frame 10, so that the drive motor 604 can be fixed and is easy to operate and clean.

[0033] Specifically, a groove 11 is provided on the side of the filter box 5. The inside of the groove 11 is slidably connected to the outside of the filter plate 605. A handle 12 is fixedly connected to the left side of the filter plate 605.

[0034] Specifically, an exhaust box 13 is fixedly connected to the rear of the filter box 5, an exhaust fan 14 is installed inside the exhaust box 13, and an airflow sensor 15 is installed at the rear right side of the exhaust box 13.

[0035] The working principle and usage process of this utility model are as follows: When the device is to be used, the drive motor 604 is turned on, which drives the gear 402 on the right side to rotate. The rotation of the gear 402 causes the external rack 403 to rotate. The rotation of the rack 403 can cause the other three gears 402 inside to rotate together. The back of the gear 402 is connected to the rotating shaft 401, which is connected to the louvered window 3. Thus, the rotation can be used to control the rotation of the blades of the louvered window 3 to achieve the opening and closing function.

[0036] When the device is to be used, the smoke and dust enter the filter box 5 through the ventilation duct 1. First, it passes through the dustproof net 601, which blocks a certain amount of dust. Then, it passes through the filter plate 605 to filter out some of the finer dust. After that, it only needs to pass forward through the absorption plate 606 at the rear to absorb some of the harmful substances contained in the smoke and dust.

[0037] In summary, this fire ventilation and smoke exhaust device, through the opening and closing mechanism 4, controls the opening and closing of the ventilation duct 1, preventing it from remaining open when not in use or stopped. This prevents dust and small insects from entering the duct, causing unnecessary pollution and blockage, reducing the ventilation efficiency and lifespan of the duct. Furthermore, the filtration mechanism 6 filters out dust and harmful substances contained in the smoke, preventing the release of these substances into the air without proper filtration, which could impact the external environment and even endanger human health and safety.

[0038] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] 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 ventilation and smoke exhaust device, comprising a ventilation duct (1) and an air inlet window (2) disposed at the front end of the ventilation duct (1), characterized in that, Also includes: A louvered switch window (3) is installed inside the air inlet window (2). The left and right sides of the louvered switch window (3) are rotatably connected to an opening and closing mechanism (4). The opening and closing mechanism (4) includes a rotating shaft (401), a gear (402), a rack (403), and a servo motor (404). A filter box (5) is set behind the ventilation duct (1). A filter mechanism (6) is installed at the front end of the filter box (5). The filter mechanism (6) includes a dustproof net (601), a cross cleaning brush (602), a connecting rod (603), a drive motor (604), a filter plate (605), and an absorption plate (606).

2. The fire ventilation and smoke exhaust device according to claim 1, characterized in that: The rotating shaft (401) is rotatably connected to the left and right sides of the louvered window (3). A gear (402) is fixedly connected to the outside of the rotating shaft (401). A rack (403) is meshed with the outside of the gear (402). A servo motor (404) is fixedly connected to the left side of the gear (402) below.

3. A fire-fighting ventilation and smoke exhaust device according to claim 1, characterized in that: The dustproof net (601) is installed on the outside of the front end of the filter box (5). A cross cleaning brush (602) is slidably connected to the back of the dustproof net (601). A connecting rod (603) is fixedly connected to the middle of the back of the cross cleaning brush (602). A drive motor (604) is installed at the rear end of the connecting rod (603). A filter plate (605) is slidably connected to the rear end of the filter box (5). An absorption plate (606) is installed behind the filter plate (605).

4. A fire-fighting ventilation and smoke exhaust device according to claim 1, characterized in that: A rotating connector (7) is rotatably connected to the rear of the connecting rod (603), and the rear end of the rotating connector (7) is fixedly connected to the front end of the drive motor (604).

5. A fire ventilation and smoke exhaust device according to claim 1, characterized in that: The drive motor (604) is fitted with a housing (8), and a support rod (9) is fixedly connected to the outside of the housing (8).

6. A fire ventilation and smoke exhaust device according to claim 5, characterized in that: The top of the support rod (9) is fixedly connected to a fixing frame (10), and the outside of the fixing frame (10) is fixedly connected to the inside of the filter box (5).

7. A fire ventilation and smoke exhaust device according to claim 1, characterized in that: The filter box (5) has a sliding groove (11) on its side. The inside of the sliding groove (11) is slidably connected to the outside of the filter plate (605). A handle (12) is fixedly connected to the left side of the filter plate (605).

8. A fire-fighting ventilation and smoke exhaust device according to claim 1, characterized in that: A blower box (13) is fixedly connected to the rear of the filter box (5). A blower (14) is installed inside the blower box (13). An airflow sensor (15) is installed at the rear right side of the blower box (13).

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