Smoke exhaust device for fire emergency rescue
By introducing cleaning, disassembly, and filtration structures into the smoke exhaust system for fire emergency rescue, the problem of filter clogging has been solved, the efficiency and convenience of the system have been improved, and safe smoke exhaust performance has been ensured.
Patent Information
- Application Number
- CN202423207775.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing smoke extraction devices for fire emergency rescue are difficult to clean, and the filters are prone to clogging, affecting smoke extraction efficiency.
A smoke exhaust device was designed, comprising a cleaning structure, a disassembly structure, and a filtration structure. The cleaning structure uses an electric push rod to drive a moving plate and a guide rod to automatically clean the filter screen. The disassembly structure facilitates the cleaning of the exhaust fan through a mounting frame and a snap-fit groove. The filtration structure improves the filtration effect through an activated carbon adsorption mesh and an insect-proof mesh.
This design facilitates the prevention of filter clogging, improves the efficiency and convenience of the device, enhances safety, and ensures effective smoke extraction at fire scenes.
Smart Images

Figure CN223550581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a smoke exhaust device for fire emergency rescue. Background Technology
[0002] In emergency situations such as fires, an effective smoke extraction system can significantly reduce the temperature and smoke concentration at the fire scene, providing a safer working environment for firefighters to enter the fire scene. The smoke is quickly discharged by the smoke extraction fan to ensure personnel safety and reduce fire losses. Therefore, a smoke extraction device for fire emergency rescue is used.
[0003] To address this, patent CN219932564U discloses a fire-fighting smoke exhaust fan, comprising a cylindrical shell and a main body of the smoke exhaust fan installed inside the cylindrical shell, and further comprising a filter assembly. A semi-circular arc-shaped opening is provided on the outer wall of the air inlet end of the cylindrical shell, and the filter assembly is slidably disposed on the semi-circular arc-shaped opening of the cylindrical shell. The filter assembly is used to filter the airflow entering the smoke exhaust fan. This invention, by providing a semi-circular arc-shaped opening on the outer wall of the air inlet end of the cylindrical shell, allows the filter assembly to slide within the semi-circular arc-shaped opening. When the filter assembly needs cleaning, it can be directly pulled out for cleaning without affecting the normal operation of the smoke exhaust fan. After cleaning, the filter assembly can be directly slidably reinstalled in the semi-circular arc-shaped opening.
[0004] Although the filter components of the fire-fighting smoke exhaust fan mentioned above can be pulled out for cleaning during use, the inconvenience of cleaning and the accumulation of impurities in the filter screen can easily cause blockage, thus affecting the smoke exhaust efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a smoke exhaust device for fire emergency rescue, in order to solve the problem that existing smoke exhaust devices for fire emergency rescue are inconvenient to clean.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a smoke exhaust device for fire emergency rescue, comprising a base and a cylinder;
[0007] A cylindrical body is fixed to one side of the top of the base, a bracket is fixed inside the cylindrical body, a drive motor is installed on one side of the bracket, the output end of the drive motor passes through the bracket and is fixed to an exhaust fan, a disassembly structure is fixed to one end of the cylindrical body, and a duct is fixed to the other end of the cylindrical body.
[0008] A filter box is fixed to the top of the base at one end of the air duct. A door is provided on one side of the filter box. A smoke exhaust port is passed through one end of the filter box. An activated carbon adsorption net is installed inside the filter box on the side of the smoke exhaust port. An insect-proof net is fixed on the outer wall of the filter box on the other side of the smoke exhaust port.
[0009] A cleaning structure is provided on one side of the filter box. The cleaning structure includes a movable plate, a ash discharge port, a collection frame, a cleaning plate, brush bristles, an electric push rod, and a guide rod. The movable plate is located on one side of the filter box, and a cleaning plate is fixed to one side of the movable plate. Brush bristles are evenly distributed on one side of the cleaning plate. An ash discharge port runs through the interior of the filter box below the cleaning plate. A collection frame is provided at the top of the base below the ash discharge port. An electric push rod runs through one side of the filter box, and guide rods run through the interior of the filter box on both sides of the electric push rod. A filtration structure is provided inside the filter box on one side of the cleaning structure.
[0010] When using this device, the cleaning structure facilitates anti-clogging, thereby improving the working efficiency of the fire emergency rescue smoke exhaust device; the disassembly structure facilitates cleaning of the exhaust fan, thereby improving the convenience of use; and the filtration structure facilitates filtration, thereby improving the safety of use.
[0011] Preferably, the base has casters evenly fixed on both sides of its bottom end, and the end of the air duct away from the cylinder is connected to the end of the filter box.
[0012] Preferably, the disassembly and assembly structure includes a mounting frame, a protective plate, snap-fit grooves, snap-fit blocks, and a reserved slot. The mounting frame is located at one end of the cylinder. The protective plate is fixed inside the mounting frame. Snap-fit grooves are provided at both ends of one side of the mounting frame. Snap-fit blocks are provided inside each snap-fit groove, and reserved slots are provided inside each snap-fit block. By moving the mounting frame to one end of the cylinder using the handle and pushing the mounting frame, the reserved slots cause the mounting frame to move the snap-fit grooves to the outside of the snap-fit blocks, thereby fixing the mounting frame and the cylinder together.
[0013] Preferably, handles are fixed on both sides of the mounting frame, and the snap-fit block and the mounting frame form a snap-fit structure through snap-fit grooves. One end of the snap-fit block extends to the outside of the mounting frame and is fixedly connected to one end of the cylinder. The protective plate effectively protects against large flying debris. By pulling the handles, the mounting frame and the cylinder can be separated, facilitating the cleaning of the exhaust fan blades.
[0014] Preferably, one end of the electric push rod is fixedly connected to one side of the moving plate, and the guide rod and the filter box form a sliding structure. One end of the guide rod is fixedly connected to one side of the moving plate. When the electric push rod is activated, it drives the moving plate to move, and the moving plate drives the guide rod to move inside the filter box. Under the action of the guide rod, the stability of the moving plate during movement is enhanced. The moving plate, through the cleaning plate, drives the bristles to clean one side of the filter screen, preventing the filter screen from becoming clogged. The cleaned dust falls into the collection frame through the dust discharge port for collection.
[0015] Preferably, the filter structure includes a fixed frame, a chute, a slide plate, and a cleaning plate. The fixed frame is located on one side of the bristles, and a filter screen is fixed inside the fixed frame. Both ends of the fixed frame have chute openings, and slide plates are installed inside each chute. Opening the door, moving the fixed frame inside the filter box so that one end of the chute abuts against one end of the slide plate, and pushing the fixed frame causes the chute to move to the outside of the slide plate.
[0016] Preferably, the sliding plate and the fixed frame form a sliding structure through a sliding groove. One end of the sliding plate extends to the outside of the fixed frame and is fixedly connected to the inner wall of the filter box. One side of the filter screen contacts the side of the brush bristles. When the door is closed, the fixed frame is in a fixed state. Under the action of the filter screen, larger particles such as dust and smoke can be filtered out. Under the action of the activated carbon adsorption mesh, it is used to adsorb toxic gases, smoke, oxygen deficiency, and other conditions.
[0017] The smoke extraction device for fire emergency rescue provided by this utility model has the following advantages:
[0018] By incorporating a cleaning structure, the electric push rod is activated, which in turn moves the movable plate. The movable plate then moves the guide rod inside the filter box, enhancing the stability of the movable plate during movement. The movable plate, through the cleaning plate, drives the brush bristles to clean one side of the filter screen, preventing clogging. The cleaned dust falls into the collection frame through the ash discharge port for collection, thus achieving the device's anti-clogging function and improving the working efficiency of this fire emergency rescue smoke exhaust device during use.
[0019] With a detachable structure, the mounting frame can be moved to one end of the cylinder by the handle. Pushing the mounting frame, under the action of the reserved groove, the mounting frame moves the snap-fit groove to the outside of the snap-fit block, thereby fixing the mounting frame and the cylinder together. Under the action of the protective plate, it can effectively resist large flying debris. By pulling the mounting frame by the handle, the mounting frame and the cylinder can be separated, which facilitates the cleaning of the exhaust fan blades. This realizes the function of easy cleaning of the exhaust fan, thereby improving the convenience of using the smoke exhaust device for fire emergency rescue.
[0020] By incorporating a filtration structure, opening the door allows the fixed frame to be moved inside the filter box, aligning one end of the slide rail with one end of the slide plate. Pushing the fixed frame causes it to move the slide rail to the outside of the slide plate. Closing the door leaves the fixed frame in a fixed position. Under the action of the filter screen, larger particles such as dust and smoke are filtered out. The activated carbon adsorption screen is used to adsorb toxic gases, smoke, and oxygen deficiency, thus achieving the device's easy filtration function and improving the safety of the fire emergency rescue smoke exhaust device during use. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0024] Figure 4 This is a partially enlarged structural schematic diagram of the main view section of the disassembly and assembly structure of this utility model;
[0025] Figure 5 This is a side view sectional structural diagram of the present invention.
[0026] The following are the annotations in the diagram: 1. Base; 2. Cylinder; 3. Disassembly / assembly structure; 301. Mounting frame; 302. Protective plate; 303. Snap-fit groove; 304. Snap-fit block; 305. Reserved groove; 4. Air duct; 5. Filter box; 6. Door; 7. Exhaust fan; 8. Drive motor; 9. Bracket; 10. Cleaning structure; 1001. Moving plate; 1002. Ash discharge port; 1003. Collection frame; 1004. Cleaning plate; 1005. Brush bristles; 1006. Electric push rod; 1007. Guide rod; 11. Filter structure; 1101. Fixed frame; 1102. Slide groove; 1103. Slide plate; 1104. Filter screen; 12. Activated carbon adsorption screen; 13. Smoke exhaust port; 14. Insect screen. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-5This utility model provides a smoke exhaust device for fire emergency rescue, including a base 1 and a cylinder 2. The cylinder 2 is fixed to one side of the top of the base 1, and a bracket 9 is fixed inside the cylinder 2. A drive motor 8 is installed on one side of the bracket 9, and the output end of the drive motor 8 passes through the bracket 9 and is fixed with an exhaust fan 7. A disassembly structure 3 is fixed to one end of the cylinder 2. The disassembly structure 3 includes a mounting frame 301, a protective plate 302, a snap-fit groove 303, a snap-fit block 304, and a reserved groove 305. The mounting frame 301 is located at one end of the cylinder 2, and a protective plate is fixed inside the mounting frame 301. The mounting frame 301 has two snap-fit grooves 303 on one side of the plate 302. Each snap-fit groove 303 has a snap-fit block 304 inside. Each snap-fit block 304 has a reserved groove 305 inside. Each side of the mounting frame 301 has a handle. The snap-fit block 304 and the mounting frame 301 form a snap-fit structure through the snap-fit groove 303. One end of the snap-fit block 304 extends to the outside of the mounting frame 301 and is fixedly connected to one end of the cylinder 2. Fixed casters are evenly fixed on both sides of the bottom of the base 1. The end of the air duct 4 away from the cylinder 2 is connected to one end of the filter box 5.
[0029] Reference Figures 1-4 As shown, by moving the mounting frame 301 to one end of the cylinder 2 with the handle, and pushing the mounting frame 301, the mounting frame 301 moves the snap-fit groove 303 to the outside of the snap-fit block 304 under the action of the reserved groove 305, thereby fixing the mounting frame 301 and the cylinder 2 together. Under the action of the protective plate 302, it can effectively resist large debris splashing. By pulling the mounting frame 301 with the handle, the mounting frame 301 and the cylinder 2 can be separated from each other, making it convenient to clean the blades of the exhaust fan 7.
[0030] A duct 4 is fixed to the other end of the cylinder 2. A filter box 5 is fixed to the top of the base 1 at one end of the duct 4. A door 6 is provided on one side of the filter box 5. A smoke exhaust port 13 passes through one end of the filter box 5. An activated carbon adsorption net 12 is installed inside the filter box 5 on one side of the smoke exhaust port 13. An insect-proof net 14 is fixed on the outer wall of the filter box 5 on the other side of the smoke exhaust port 13. A cleaning structure 10 is provided on one side inside the filter box 5. The cleaning structure 10 includes a moving plate 1001, a dust discharge port 1002, a collection frame 1003, a cleaning plate 1004, brush bristles 1005, an electric push rod 1006, and a guide rod 1007. The moving plate 1001 is located on one side inside the filter box 5. A cleaning plate 1004 is fixed to one side of the moving plate 1001. Brush bristles 1005 are evenly arranged on one side of the cleaning plate 1004. A ash discharge port 1002 runs through the interior of the filter box 5 below the cleaning plate 1004. A collection frame 1003 is set at the top of the base 1 below the ash discharge port 1002. An electric push rod 1006 runs through one side of the interior of the filter box 5. Guide rods 1007 run through the interior of the filter box 5 on both sides of the electric push rod 1006. One end of the electric push rod 1006 is fixedly connected to one side of the moving plate 1001. The guide rod 1007 and the filter box 5 form a sliding structure. One end of the guide rod 1007 is fixedly connected to one side of the moving plate 1001.
[0031] Reference Figure 2 and Figure 5 As shown, when the electric push rod 1006 is activated, the electric push rod 1006 drives the moving plate 1001 to move. The moving plate 1001 drives the guide rod 1007 to move inside the filter box 5. Under the action of the guide rod 1007, the stability of the moving plate 1001 during movement is enhanced. The moving plate 1001 drives the brush 1005 to clean one side of the filter screen 1104 through the cleaning plate 1004, so as to prevent the filter screen 1104 from becoming clogged. The cleaned dust falls into the collection frame 1003 through the dust discharge port 1002 for collection.
[0032] The filter box 5 on one side of the cleaning structure 10 is equipped with a filter structure 11. The filter structure 11 includes a fixed frame 1101, a chute 1102, a slide plate 1103, and a cleaning plate 1004. The fixed frame 1101 is located on one side of the bristles 1005. The filter screen 1104 is fixed inside the fixed frame 1101. The two ends of the fixed frame 1101 are provided with chute 1102. The slide plate 1103 is provided inside the chute 1102. The slide plate 1103 and the fixed frame 1101 form a sliding structure through the chute 1102. One end of the slide plate 1103 extends to the outside of the fixed frame 1101 and is fixedly connected to the inner wall of the filter box 5. One side of the filter screen 1104 is in contact with one side of the bristles 1005.
[0033] Reference Figure 2 and Figure 3As shown, open the door 6, move the fixing frame 1101 into the filter box 5, so that one end of the slide 1102 abuts against one end of the slide plate 1103, push the fixing frame 1101, and the fixing frame 1101 drives the slide 1102 to move to the outside of the slide plate 1103. Close the door 6. At this time, the fixing frame 1101 is in a fixed state. Under the action of the filter screen 1104, it can filter out larger particles, such as dust and smoke. Under the action of the activated carbon adsorption screen 12, it is used to adsorb toxic gases, smoke, oxygen deficiency and other conditions.
[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A smoke exhaust device for fire emergency rescue, comprising a base (1) and a cylinder (2); Its features are: A cylindrical body (2) is fixed to one side of the top of the base (1). A bracket (9) is fixed inside the cylindrical body (2). A drive motor (8) is installed on one side of the bracket (9). The output end of the drive motor (8) passes through the bracket (9) and is fixed with an exhaust fan (7). A disassembly structure (3) is fixed to one end of the cylindrical body (2). A duct (4) is fixed to the other end of the cylindrical body (2). A filter box (5) is fixed to the top of the base (1) at one end of the air duct (4). A door (6) is provided on one side of the filter box (5). A smoke exhaust port (13) is passed through one end of the filter box (5). An activated carbon adsorption net (12) is installed inside the filter box (5) on one side of the smoke exhaust port (13). An insect-proof net (14) is fixed on the outer wall of the filter box (5) on the other side of the smoke exhaust port (13). A cleaning structure (10) is provided on one side inside the filter box (5). The cleaning structure (10) includes a movable plate (1001), a dust discharge port (1002), a collection frame (1003), a cleaning plate (1004), bristles (1005), an electric push rod (1006), and a guide rod (1007). The movable plate (1001) is located on one side inside the filter box (5). The cleaning plate (1004) is fixed on one side of the movable plate (1001). The cleaning plate (1004) is uniformly distributed on one side of the cleaning plate (1004). The filter box (5) below the cleaning plate (1004) is equipped with a brush bristle (1005), and the filter box (5) below the cleaning plate (1004) has a ash discharge port (1002) running through it. The top of the base (1) below the ash discharge port (1002) is equipped with a collection frame (1003). An electric push rod (1006) runs through one side of the filter box (5). Guide rods (1007) run through the filter boxes (5) on both sides of the electric push rod (1006). A filter structure (11) is provided inside the filter box (5) on one side of the cleaning structure (10).
2. The smoke exhaust device for fire emergency rescue according to claim 1, characterized in that: The base (1) has casters evenly fixed on both sides of its bottom end, and the end of the air duct (4) away from the cylinder (2) is connected to the end of the filter box (5).
3. A smoke exhaust device for fire emergency rescue according to claim 1, characterized in that: The disassembly and assembly structure (3) includes an installation frame (301), a protective plate (302), a snap-fit groove (303), a snap-fit block (304), and a reserved groove (305). The installation frame (301) is located at one end of the cylinder (2). The protective plate (302) is fixed inside the installation frame (301). Snap-fit grooves (303) are provided at both ends of one side of the installation frame (301). Snap-fit blocks (304) are provided inside the snap-fit grooves (303). Reserved grooves (305) are provided inside the snap-fit blocks (304).
4. A smoke exhaust device for fire emergency rescue according to claim 3, characterized in that: Handles are fixed on both sides of the mounting frame (301). The snap-fit block (304) and the mounting frame (301) form a snap-fit structure through the snap-fit groove (303). One end of the snap-fit block (304) extends to the outside of the mounting frame (301) and is fixedly connected to one end of the cylinder (2).
5. A smoke exhaust device for fire emergency rescue according to claim 1, characterized in that: One end of the electric push rod (1006) is fixedly connected to one side of the moving plate (1001), and the guide rod (1007) and the filter box (5) form a sliding structure. One end of the guide rod (1007) is fixedly connected to one side of the moving plate (1001).
6. A smoke exhaust device for fire emergency rescue according to claim 1, characterized in that: The filter structure (11) includes a fixed frame (1101), a chute (1102), a slide plate (1103), and a cleaning plate (1004). The fixed frame (1101) is located on one side of the bristles (1005). A filter screen (1104) is fixed inside the fixed frame (1101). A chute (1102) is provided at both ends inside the fixed frame (1101), and a slide plate (1103) is provided inside each chute (1102).
7. A smoke exhaust device for fire emergency rescue according to claim 6, characterized in that: The slide plate (1103) and the fixed frame (1101) form a sliding structure through the slide groove (1102). One end of the slide plate (1103) extends to the outside of the fixed frame (1101) and is fixedly connected to the inner wall of the filter box (5). One side of the filter screen (1104) is in contact with one side of the bristles (1005).
Citation Information
Patent Citations
Smoke exhaust fan for fire fighting
CN219932564U