Smoke exhaust device for fire fighting

Abstract

The utility model relates to the technical field of smoke exhaust devices, in particular to a smoke exhaust device for fire fighting. According to the technical scheme, the smoke exhaust device comprises an air inlet pipe and a smoke exhaust pipe and further comprises a filter screen rotationally installed in the air inlet pipe, a water tank used for containing the filter screen is fixedly installed at the bottom of the air inlet pipe, water used for cleaning the filter screen is contained in the water tank, and a cleaning brush used for cleaning the filter screen is installed in the water tank in a sliding mode. Cleaning is carried out while filtering is carried out, the filter screen does not need to be replaced regularly, meanwhile, due to the fact that the temperature of smoke is high, water can cool and protect the filter screen, and the service life of the filter screen is prolonged; besides, the lower half part of the filter screen soaked in the water tank can be cleaned through the cleaning brushes tightly attached to the two sides of the filter screen, the cleaning effect is improved, the filter screen can keep good filtering performance for a long time, and therefore the filtering effect of the filter screen is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a smoke exhaust device technical field especially relates to a fire smoke exhaust device. BACKGROUND

[0002] When the fire occurs, the fire smoke exhaust device will be needed to exhaust the smoke produced by the fire, the existing fire smoke exhaust device is mainly composed of axial flow fan, air duct and filter screen, the axial flow fan rotates the blade through the motor drive, produces the axial airflow, exhausts the flue gas along the air duct, is applicable to small shopping mall, warehouse and other places, the axial flow fan is directly installed on the wall or roof, and the indoor flue gas is exhausted to the outdoor, the filter screen is used for filtering the harmful substances such as dust particles in the flue gas, since the filter screen is easy to block, the filter screen needs to be replaced regularly, the operation is troublesome, and the maintenance cost is increased, therefore, we propose a fire smoke exhaust device. SUMMARY

[0003] The utility model discloses to the problem of the filter screen in the background art is easy to block, needs to replace the filter screen regularly, the operation is troublesome, and the maintenance cost is increased, and a fire smoke exhaust device is provided.

[0004] The utility model discloses a fire smoke exhaust device, including air inlet pipe and smoke exhaust pipe, still include:

[0005] The filter screen is rotatably installed in the air inlet pipe, the bottom of the air inlet pipe is fixedly installed with a water tank for accommodating the filter screen, and the water tank contains water for cleaning the filter screen.

[0006] The cleaning brush for cleaning the filter screen is slidably installed in the water tank.

[0007] The fan is rotatably installed in the smoke exhaust pipe.

[0008] Optionally, the inner wall of the air inlet pipe is fixedly installed with a rotating seat, the rotating seat is rotatably installed with a circular piece, the filter screen is fixedly installed in the circular piece, and a through hole is arranged between the bottom of the air inlet pipe and the water tank, which can pass through the filter screen.

[0009] Optionally, the through hole is rotatably installed with a rotating shaft, the rotating shaft is fixedly connected with the circular piece, and the inner wall of the air inlet pipe is fixedly installed with a motor on one side, which drives the rotating shaft to rotate.

[0010] Optionally, the water tank is communicated with the water inlet pipe and the water outlet pipe, the top and the bottom of the water tank are fixedly installed with two groups of symmetrically arranged sliding grooves, the sliding grooves are slidably installed with moving plates, and the cleaning brushes are fixedly installed on one side of the moving plates close to the filter screen.

[0011] Optionally, each of the sliding grooves is fixedly installed with a sliding rod, and both ends of the movable plate are slidably sleeved on the sliding rod. A spring is fixedly connected between the sliding groove and the side of the movable plate away from the filter screen, and the spring is sleeved on the outside of the sliding rod.

[0012] Optionally, a fixing component with a centrally located ring is fixedly installed inside the exhaust pipe, the fan is rotatably installed inside the fixing component, and a motor that drives the fan to rotate is fixedly installed inside the fixing component.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This invention uses a rotating circular filter screen to continuously filter flue gas from the upper half, while the lower half is immersed in a water tank. As the filter screen rotates, it can be cleaned while filtering, eliminating the need for regular filter screen replacement. In addition, since the flue gas temperature is high, the water can cool and protect the filter screen, thus extending its service life.

[0015] Furthermore, when the filter screen rotates, the cleaning brushes that fit tightly against both sides of the filter screen can clean the lower half of the filter screen that is immersed in the water tank, improving the cleaning effect and enabling the filter screen to maintain good filtration performance for a long time. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of this utility model is provided;

[0017] Figure 2 A front sectional view of the present invention is provided;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] Reference numerals in the attached diagram: 1. Air inlet pipe; 2. Smoke exhaust pipe; 21. Fixing component; 22. Motor; 3. Air inlet; 4. Water tank; 5. Water inlet pipe; 6. Water outlet pipe; 7. Fan; 8. Circular component; 9. Filter screen; 10. Rotating seat; 11. Cleaning brush; 12. Slide groove; 121. Slide rod; 122. Spring; 13. Moving plate; 14. Rotating shaft; 15. Motor. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a 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. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] like Figures 1 to 3As shown, the present invention proposes a fire-fighting smoke exhaust device, including an air inlet pipe 1 and a smoke exhaust pipe 2. An air inlet 3 is fixedly connected to the side of the air inlet pipe 1 away from the smoke exhaust pipe 2. The device also includes a filter screen 9 rotatably installed inside the air inlet pipe 1. A water tank 4 for accommodating the filter screen 9 is fixedly installed at the bottom of the air inlet pipe 1. The water tank 4 contains water for cleaning the filter screen 9.

[0028] The air inlet duct 1 has a rotating seat 10 fixedly installed on its inner wall. The rotating seat 10 is used to improve the stability of the filter screen 9 when it rotates. A circular part 8 is rotatably installed inside the rotating seat 10. The filter screen 9 is fixedly installed inside the circular part 8. A through hole is opened between the bottom of the air inlet duct 1 and the water tank 4 so that the filter screen 9 can pass through. A rotating shaft 14 is rotatably installed inside the through hole. The rotating shaft 14 is fixedly connected to the circular part 8. A motor 15 is fixedly installed on one side of the inner wall of the air inlet duct 1 to drive the rotating shaft 14 to rotate. When the motor 15 is started, the rotating shaft 14 is driven to rotate, so that the filter screen 9 also rotates. The upper part of the filter screen 9, which was originally in the air inlet duct 1, rotates into the water tank 4. The water in the water tank 4 cleans the filter screen 9. At the same time, the part of the filter screen 9 that was originally in the water tank 4 rotates into the air inlet duct 1 to filter the smoke. This achieves cleaning while filtering, eliminating the need to replace the filter screen 9 regularly. In addition, since the temperature of the flue gas is high, the water can cool down and protect the filter screen 9, thus improving the service life of the filter screen 9.

[0029] In this embodiment, a cleaning brush 11 for cleaning the filter screen 9 is slidably installed inside the water tank 4. The water tank 4 is connected to an inlet pipe 5 and an outlet pipe 6. The inlet pipe 5 is connected to an external water source, and the outlet pipe 6 is connected to an external drainage device to discharge the wastewater used in the water tank 4. Two sets of symmetrically arranged sliding grooves 12 are fixedly installed at the top and bottom of the water tank 4. A movable plate 13 is slidably installed inside the sliding groove 12. The cleaning brush 11 is fixedly installed on the side of the movable plate 13 close to the filter screen 9. When the filter screen 9 rotates, the cleaning brush 11 further cleans the filter screen 9 to improve the cleaning effect.

[0030] Each slide rail 12 is fixedly installed in the slide groove 12. The two ends of the moving plate 13 are slidably sleeved on the slide rail 121. A spring 122 is fixedly connected between the slide groove 12 and the side of the moving plate 13 away from the filter screen 9. The spring 122 is sleeved on the outside of the slide rail 121. The two sets of cleaning brushes 11 are in close contact with the two sides of the filter screen 9 under the action of the spring 122. As the filter screen 9 rotates, the cleaning brushes 11 clean the two sides of the filter screen 9, so that the filter screen 9 can maintain good filtration performance for a long time, thereby ensuring the filtration effect of the filter screen 9.

[0031] A fan 7 is rotatably installed inside the exhaust pipe 2. A fixing part 21 with a ring at the center is fixedly installed inside the exhaust pipe 2. The fan 7 is rotatably installed inside the fixing part 21. A motor 22 that drives the fan 7 to rotate is fixedly installed inside the fixing part 21. When the motor 22 is started, the fan 7 rotates, which creates a negative pressure in the air inlet pipe 1. This allows smoke containing dust and other harmful substances to enter the air inlet pipe 1 through the air inlet 3. The smoke first passes through the filter screen 9 located in the upper part of the air inlet pipe 1. The filter screen 9 filters the smoke. The filtered smoke is then discharged outdoors through the exhaust pipe 2.

[0032] Working principle: During the operation of this utility model, the motor 22 is started, which drives the fan 7 to rotate, causing a negative pressure to be generated in the air inlet pipe 1 connected to the exhaust pipe 2. This allows smoke containing dust and other harmful substances to enter the air inlet pipe 1 through the air inlet 3. The smoke first passes through the filter screen 9 located in the upper part of the air inlet pipe 1. The filter screen 9 filters the smoke, and the filtered smoke is discharged to the outside through the exhaust pipe 2.

[0033] When the filter screen 9 needs to be cleaned, the motor 15 is started, which drives the rotating shaft 14 to rotate, causing the filter screen 9 to rotate as well. This causes the upper part of the filter screen 9, which was originally in the air inlet pipe 1, to rotate into the water tank 4. The water in the water tank 4 cleans the filter screen 9. At the same time, the part of the filter screen 9 that was originally in the water tank 4 rotates into the air inlet pipe 1 to filter the passing smoke. This achieves cleaning while filtering, eliminating the need to replace the filter screen 9 regularly. Furthermore, since the temperature of the flue gas is high, the water can cool down and protect the filter screen 9, thus extending its service life.

[0034] In addition, during the rotation of the filter screen 9, the two sets of cleaning brushes 11 located in the water tank 4 are pressed against the two sides of the filter screen 9 under the action of the spring 122. As the filter screen 9 rotates, the cleaning brushes 11 clean the two sides of the filter screen 9, improve the cleaning effect, and enable the filter screen 9 to maintain good filtration performance for a long time, thereby ensuring the filtration effect of the filter screen 9.

[0035] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fire-fighting smoke exhaust device, comprising an air inlet pipe (1) and a smoke exhaust pipe (2), characterized in that, Also includes: Rotate the filter screen (9) installed in the air inlet pipe (1). A water tank (4) for accommodating the filter screen (9) is fixedly installed at the bottom of the air inlet pipe (1). The water tank (4) contains water for cleaning the filter screen (9). A cleaning brush (11) for cleaning the filter screen (9) is slidably installed in the water tank (4); Rotate the fan (7) installed inside the exhaust pipe (2).

2. A fire-fighting smoke exhaust device according to claim 1, characterized in that, A rotating seat (10) is fixedly installed on the inner wall of the air inlet pipe (1). A circular component (8) is rotatably installed inside the rotating seat (10). The filter screen (9) is fixedly installed inside the circular component (8). A through hole is provided between the bottom of the air inlet pipe (1) and the water tank (4) for the filter screen (9) to pass through.

3. A fire-fighting smoke exhaust device according to claim 2, characterized in that, A rotating shaft (14) is rotatably installed inside the through hole. The rotating shaft (14) is fixedly connected to the circular piece (8). A motor (15) that drives the rotating shaft (14) to rotate is fixedly installed on one side of the inner wall of the air inlet pipe (1).

4. A fire-fighting smoke exhaust device according to claim 1, characterized in that, The water tank (4) is connected to an inlet pipe (5) and an outlet pipe (6). Two sets of symmetrically arranged sliding grooves (12) are fixedly installed at the top and bottom of the water tank (4). A movable plate (13) is slidably installed in the sliding groove (12). The cleaning brush (11) is fixedly installed on the side of the movable plate (13) near the filter screen (9).

5. A fire-fighting smoke exhaust device according to claim 4, characterized in that, Each of the slide grooves (12) is fixedly installed with a slide rod (121). Both ends of the moving plate (13) are slidably sleeved on the slide rod (121). A spring (122) is fixedly connected between the slide groove (12) and the side of the moving plate (13) away from the filter screen (9). The spring (122) is sleeved on the outside of the slide rod (121).

6. A fire-fighting smoke exhaust device according to claim 1, characterized in that, The exhaust pipe (2) is fixedly installed with a fixing member (21) having a ring at the center. The fan (7) is rotatably installed in the fixing member (21). The fixing member (21) is fixedly installed with a motor (22) that drives the fan (7) to rotate.

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