Self-cleaning fire smoke exhaust fan

Abstract

This utility model relates to the field of fire protection equipment technology and discloses a self-cleaning fire smoke exhaust fan, including a fire smoke exhaust fan body. The surface of the fire smoke exhaust fan body is provided with an interception device, which includes two L-shaped plates. Both L-shaped plates are fixedly connected to the surface of the fire smoke exhaust fan body. A screw is threaded into each of the two L-shaped plates. One end of the screw is rotatably connected to a clamping plate, and the end of the screw away from the clamping plate is fixedly connected to a hexagonal plate. This self-cleaning fire smoke exhaust fan addresses the issue that traditional fire smoke exhaust fans lack a grille at the air inlet, making it easy for foreign objects to be sucked into the fan body. However, once these foreign objects are drawn into the high-speed rotating impeller, they may cause impeller blade impact deformation and motor bearing jamming, threatening the operational safety of the fire smoke exhaust fan body.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a self-cleaning fire smoke exhaust fan. Background Technology

[0002] As a key piece of equipment in building fire protection systems, fire exhaust fans play a crucial role in removing smoke during a fire, creating favorable conditions for personnel evacuation and firefighting rescue. During long-term use, key components of fire exhaust fans, such as impellers, casing inner walls, and filters, are cleaned periodically or as needed through automated or semi-automated methods to reduce manual maintenance costs and ensure smoke extraction efficiency. However, traditional fire exhaust fans have revealed numerous problems over long-term use. Smoke generated at fire scenes often contains a large amount of dust, particles, and sticky substances that may be generated at high temperatures. These impurities easily adhere to the key components of the fan. Taking the impeller as an example, as dust and sticky substances accumulate, they alter the weight distribution of the impeller, causing imbalance during high-speed rotation. This not only increases the noise and vibration of the fan but can also damage components such as the motor and bearings in severe cases, reducing the fan's smoke extraction efficiency.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: because the air inlet of the traditional fire smoke exhaust fan body lacks a grid plate to block it, foreign objects are easily sucked into the interior of the fire smoke exhaust fan body. However, once these foreign objects are drawn into the high-speed rotating impeller, they may cause the impeller blades to be impacted and deformed, and the motor bearings to be stuck, threatening the operational safety of the fire smoke exhaust fan body. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the air inlet of the traditional fire smoke exhaust fan body lacks a grid plate to block it, which makes it easy for foreign objects to be sucked into the inside of the fire smoke exhaust fan body. To this end, we propose a self-cleaning fire smoke exhaust fan.

[0005] To achieve the above objectives, this application adopts the following technical solution: a self-cleaning fire smoke exhaust fan, comprising a fire smoke exhaust fan body, wherein an interception device is provided on the surface of the fire smoke exhaust fan body, the interception device comprising two L-shaped plates, both of which are fixedly connected to the surface of the fire smoke exhaust fan body, and both of which are threaded with screws, one end of which is rotatably connected to a clamping plate, and the end of which is away from the clamping plate is fixedly connected to a hexagonal plate, a grid plate is slidably connected to the side of the clamping plate away from the screw, a handle is fixedly connected to the surface of the grid plate, and positioning plates are fixedly connected to both sides of the grid plate.

[0006] Preferably, the surface of the L-shaped plate has a limiting hole, and the inner wall of the limiting hole of the L-shaped plate is slidably connected to a limiting rod, one end of which is fixedly connected to the clamping plate.

[0007] Preferably, each of the two L-shaped plates is fixedly connected to a fixing plate on the side near the grid plate, and the positioning plate is slidably connected to the surface of the fixing plate.

[0008] Preferably, a filter screen is fixedly connected to the surface of the grating plate, and the size of the limiting rod is adapted to the size of the limiting hole of the L-shaped plate.

[0009] Preferably, a silicone ring is fixedly connected to the surface of the grid plate, and the silicone ring is fixedly connected to the surface of the filter screen.

[0010] Preferably, a hook device is provided on one side of the fire exhaust fan body. The hook device includes a connecting plate, which is fixedly connected to the surface of the fire exhaust fan body. A U-shaped plate is slidably connected to the side of the connecting plate away from the fire exhaust fan body. A threaded rod is threaded into the U-shaped plate. A round block is fixedly connected to one end of the threaded rod. Four rotating rods are fixedly connected to the arc surface of the round block. A threaded groove is opened on the surface of the connecting plate, and the threaded rod is threadedly connected to the inner wall of the threaded groove of the connecting plate.

[0011] Preferably, a wear-resistant cloth is fixedly connected to the surface of the U-shaped plate, and the wear-resistant cloth is made of metal.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, by setting up an interception device, the effect of blocking foreign objects from entering the interior of the fire exhaust fan body is achieved. This avoids the situation where foreign objects are easily sucked into the interior of the fire exhaust fan body due to the lack of a grid plate at the air inlet of the traditional fire exhaust fan body. However, once these foreign objects are drawn into the high-speed rotating impeller, they may cause the impeller blades to impact and deform, or the motor bearings to jam, threatening the operational safety of the fire exhaust fan body.

[0014] 2. In this utility model, by setting up a hook device, the effect of workers quickly replacing the suspended items is achieved. When the fire exhaust fan body needs to adjust the indicator information according to the working conditions, the workers can quickly take out the old indicator without the aid of tools and directly hang the new indicator with the suspension component on the U-shaped plate. This process not only ensures the stability of the indicator position, but also significantly improves the efficiency of sign updating. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the interception device in this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the interception device in this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the interception device in this utility model;

[0020] Figure 5 This is a schematic diagram of the hook device in this utility model.

[0021] Legend: 1. Fire exhaust fan body; 2. Interception device; 201. L-shaped plate; 202. Screw; 203. Clamping plate; 204. Hexagonal plate; 205. Grating plate; 206. Handle; 207. Limiting rod; 208. Fixing plate; 209. Positioning plate; 210. Filter screen; 211. Silicone ring; 3. Hook device; 31. Connecting plate; 32. U-shaped plate; 33. Threaded rod; 34. Round block; 35. Rotating rod; 36. Wear-resistant cloth. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Reference Figure 1As shown, this utility model provides a technical solution: a self-cleaning fire exhaust fan, including a fire exhaust fan body 1. The surface of the fire exhaust fan body 1 is provided with an interception device 2. By setting the interception device 2, the effect of blocking foreign objects from entering the interior of the fire exhaust fan body 1 is achieved. This avoids the situation where foreign objects are easily sucked into the interior of the fire exhaust fan body 1 due to the lack of a grille plate 205 at the air inlet of the traditional fire exhaust fan body 1. However, once these foreign objects are drawn into the high-speed rotating impeller, it may cause the impeller blades to impact and deform, and the motor bearings to jam, threatening the operational safety of the fire exhaust fan body 1. A hook device 3 is provided on one side of the fire exhaust fan body 1. By setting the hook device 3, the effect of workers quickly changing the hanging items is achieved. When the fire exhaust fan body 1 needs to adjust the indicator information according to the working conditions, the workers can quickly take out the old indicator without the aid of tools and directly hang the new indicator with the hanging parts on the U-shaped plate 32. This process not only ensures the stability of the indicator position, but also significantly improves the efficiency of the sign update.

[0024] The specific setup and function of the interception device 2 and the hook device 3 will be explained below.

[0025] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the interception device 2 includes two L-shaped plates 201, both of which are fixedly connected to the surface of the fire exhaust fan body 1. Each L-shaped plate 201 has a screw 202 threaded into it. One end of the screw 202 is rotatably connected to a clamping plate 203, and the end of the screw 202 away from the clamping plate 203 is fixedly connected to a hexagonal plate 204. A grid plate 205 is slidably connected to the side of the clamping plate 203 away from the screw 202. A handle 206 is fixedly connected to the surface of the grid plate 205, and positioning plates 209 are fixedly connected to both sides of the grid plate 205. Limiting holes are formed on the surface of the L-shaped plates 201, and limiting rods 207 are slidably connected to the inner walls of the limiting holes. One end of the limiting rod 207 is fixedly connected to the clamping plate 203 to prevent the clamping plate 203 from rotating with the screw 202, thus making the movement path of the clamping plate 203 more stable. A fixing plate 208 is fixedly connected to one side of the grille 205. The positioning plate 209 is slidably connected to the surface of the fixing plate 208. The purpose of setting the fixing plate 208 is to help the staff quickly place the grille 205 on the surface of the fire exhaust fan body 1. A filter screen 210 is fixedly connected to the surface of the grille 205. The size of the limiting rod 207 is adapted to the size of the limiting hole of the L-shaped plate 201. The purpose of installing the filter screen 210 is to intercept smaller substances in the air and prevent them from entering the interior of the fire exhaust fan body 1. A silicone ring 211 is fixedly connected to the surface of the grille 205. The silicone ring 211 is fixedly connected to the surface of the filter screen 210. The silicone ring 211 itself is elastic and soft, which can fill the gap between the grille 205 and the fire exhaust fan body 1, thereby effectively buffering the friction and collision generated when the grille 205 slides on the surface of the fire exhaust fan body 1.

[0026] Reference Figure 5 As shown, specifically, the hook device 3 includes a connecting plate 31, which is fixedly connected to the surface of the fire exhaust fan body 1. A U-shaped plate 32 is slidably connected to the side of the connecting plate 31 away from the fire exhaust fan body 1. A threaded rod 33 is threadedly inserted into the U-shaped plate 32. A round block 34 is fixedly connected to one end of the threaded rod 33. Four rotating rods 35 are fixedly connected to the arc surface of the round block 34. A threaded groove is opened on the surface of the connecting plate 31. The threaded rod 33 is threadedly connected to the inner wall of the threaded groove of the connecting plate 31. A wear-resistant cloth 36 is fixedly connected to the surface of the U-shaped plate 32. The wear-resistant cloth 36 is made of metal. The wear-resistant cloth 36 can greatly reduce the wear when the U-shaped plate rubs against the sign ring, thereby extending the service life of the U-shaped plate and making it less prone to damage in environments with frequent friction.

[0027] Working principle: When the operator needs to clamp and fix the grating plate 205, first pull the handle 206. The handle 206 moves the grating plate 205, which in turn moves the filter screen 210, silicone ring 211, and positioning plate 209, sliding on the surface of the fire exhaust fan body 1 until the fixing plate 208 contacts the positioning plate 209, thus positioning the grating plate 205. Then, rotate the hexagonal plate 204, which drives the screw 202 to rotate forward. The screw 202 drives the clamping plate 203 forward. As the clamping plate 203 moves forward, it also drives the limiting rod 207 forward. As the clamping plate 203 moves forward, it compresses the grating plate 205 and simultaneously... The compression of the grating plate 205 and the silicone ring 211, the elastic force generated by the compression of the silicone ring 211 and the squeezing force of the clamping plate 203 are balanced, thus firmly fixing the grating plate 205 and ensuring that it remains stable on the surface of the fire exhaust fan body 1. By setting the interception device 2, the effect of blocking foreign objects from entering the fire exhaust fan body 1 is achieved. This avoids the situation where foreign objects are easily sucked into the fire exhaust fan body 1 due to the lack of grating plate 205 blocking the air inlet of the traditional fire exhaust fan body 1. However, once these foreign objects are rolled into the high-speed rotating impeller, it may cause the impeller blades to be impacted and deformed, and the motor bearings to be stuck, threatening the operational safety of the fire exhaust fan body 1.

[0028] When staff need to hang signs, they simply align the ring on the sign with the U-shaped plate 32 and gently slide it in to hang the sign on the inner surface of the U-shaped plate 32. When staff need to remove the U-shaped plate 32, they simply rotate the rotating rod 35 backward. The rotating rod 35 will drive the round block 34 to rotate backward, and the round block 34 will drive the threaded rod 33 to rotate backward until it disengages from the threaded groove of the connecting plate 31. By setting the hook device 3, staff can quickly replace the hanging items. When the fire exhaust fan body 1 needs to adjust the indicator information according to the working conditions, staff can quickly take out the old sign without the need for tools and directly hang the new sign with the hanging parts on the U-shaped plate 32. This process not only ensures the stability of the sign position but also significantly improves the efficiency of sign updating.

[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A self-cleaning fire-fighting smoke exhaust fan, characterized in that, The device includes a fire exhaust fan body (1), and an interception device (2) is provided on the surface of the fire exhaust fan body (1). The interception device (2) includes two L-shaped plates (201). Both L-shaped plates (201) are fixedly connected to the surface of the fire exhaust fan body (1). Both L-shaped plates (201) are threaded with screws (202). One end of the screw (202) is rotatably connected to a clamping plate (203). The end of the screw (202) away from the clamping plate (203) is fixedly connected to a hexagonal plate (204). The side of the clamping plate (203) away from the screw (202) is slidably connected to a grid plate (205). The surface of the grid plate (205) is fixedly connected to a handle (206). Both sides of the grid plate (205) are fixedly connected to positioning plates (209).

2. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: The surface of the L-shaped plate (201) has a limiting hole, and the inner wall of the limiting hole of the L-shaped plate (201) is slidably connected to a limiting rod (207), one end of the limiting rod (207) being fixedly connected to the clamping plate (203).

3. The self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: Each of the two L-shaped plates (201) is fixedly connected to a fixing plate (208) on the side near the grid plate (205), and the positioning plate (209) is slidably connected to the surface of the fixing plate (208).

4. A self-cleaning fire-fighting smoke exhaust fan according to claim 2, characterized in that: A filter screen (210) is fixedly connected to the surface of the grid plate (205), and the size of the limiting rod (207) is adapted to the size of the limiting hole of the L-shaped plate (201).

5. A self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: A silicone ring (211) is fixedly connected to the surface of the grid plate (205), and the silicone ring (211) is fixedly connected to the surface of the filter screen (210).

6. A self-cleaning fire-fighting smoke exhaust fan according to claim 1, characterized in that: A hook device (3) is provided on one side of the fire exhaust fan body (1). The hook device (3) includes a connecting plate (31). The connecting plate (31) is fixedly connected to the surface of the fire exhaust fan body (1). A U-shaped plate (32) is slidably connected to the side of the connecting plate (31) away from the fire exhaust fan body (1). A threaded rod (33) is threadedly inserted into the U-shaped plate (32). A round block (34) is fixedly connected to one end of the threaded rod (33). Four rotating rods (35) are fixedly connected to the arc surface of the round block (34). A threaded groove is opened on the surface of the connecting plate (31). The threaded rod (33) is threadedly connected to the inner wall of the threaded groove of the connecting plate (31).

7. A self-cleaning fire-fighting smoke exhaust fan according to claim 6, characterized in that: The surface of the U-shaped plate (32) is fixedly connected with a wear-resistant cloth (36), which is made of metal.

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