Hotel emergency smoke removal device

Abstract

This utility model discloses an emergency smoke removal device for hotels, relating to the technical field of smoke removal devices. It includes a smoke exhaust fan and a protective net. The protective net has a collar, which is fitted onto the cylinder of the smoke exhaust fan. Several limiting components are evenly distributed along the circumference of the collar and the cylinder of the smoke exhaust fan. All limiting components, under the action of a moving ring, simultaneously loosen the protective net from the cylinder of the smoke exhaust fan. This application, by setting up a moving ring and limiting components, achieves quick connection and disassembly between the protective net and the cylinder of the smoke exhaust fan. Workers only need one hand to pull the moving ring and the other hand to rotate the collar to easily complete the disassembly process of the protective net. During installation, only rotating the collar is needed to fix the protective net to the smoke exhaust fan, eliminating the need for manually fixing or loosening connecting parts one by one, greatly improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of smoke removal devices, specifically to an emergency smoke removal device for hotels. Background Technology

[0002] Emergency smoke extraction systems in hotels are used to promptly remove toxic fumes from buildings during a fire, ensuring unobstructed evacuation routes and reducing the risk of suffocation.

[0003] However, existing hotel emergency smoke extraction devices still have some problems. For example, Chinese patent CN222457901U discloses a hotel emergency smoke extraction device, including a smoke exhaust fan. A docking ring is fixedly connected to the outer surface of the smoke exhaust fan. A protective net is movably connected to the front surface of the docking ring. Multiple docking blocks are fixedly connected to the outer surface of the protective net. Multiple positioning blocks are fixedly connected to the outer surface of the docking ring. Each positioning block has a docking groove, and the outer surface of the docking block is movably connected to the docking groove. Multiple limiting boxes are fixedly connected to the outer surface of the docking ring. By using recessed blocks, when the protective net needs to be removed from the smoke exhaust fan, pulling the recessed blocks releases the connection and fixation between the smoke exhaust fan and the protective net, allowing the protective net to be removed. This enables cleaning and maintenance of the protective net and the fan blades on the smoke exhaust fan without the need for wrenches or other tools, making the process convenient and quick. Although it eliminates the need for disassembly using tools such as wrenches, it still requires manual fixing and loosening of each connecting mechanism, making it inefficient. Summary of the Invention

[0004] The purpose of this utility model is to provide a hotel emergency smoke removal device to overcome the above-mentioned defects in the prior art.

[0005] An emergency smoke removal device for hotels includes a smoke exhaust fan and a protective net. The protective net is provided with a collar, which is fitted onto the cylinder of the smoke exhaust fan. Several limiting components are evenly distributed along the circumference of the collar and the cylinder of the smoke exhaust fan. All limiting components simultaneously loosen the protective net from the cylinder of the smoke exhaust fan under the action of the moving ring.

[0006] Preferably, the number of limiting components is greater than or equal to four sets.

[0007] Preferably, the limiting assembly includes an arc-shaped plate, a connecting plate, a limiting block, a sliding rod, a spring, and an arc-shaped insert plate. The arc-shaped plate is connected to a collar via the connecting plate and has a pressing inclined surface at its end. The limiting block is located on the cylinder of the exhaust fan and has an arc-shaped groove inside that mates with the arc-shaped plate. The sliding rod is slidably connected to the limiting block and a bracket on the limiting block. The sliding rod is connected to a moving ring. The spring is sleeved on the sliding rod and located between the bracket and a baffle on the sliding rod. The arc-shaped insert plate is located at the inner end of the sliding rod and has a driving inclined surface that mates with the pressing inclined surface. The arc-shaped plate has a slot that mates with the arc-shaped insert plate.

[0008] Preferably, the slide bar has an overall "L" shaped structure.

[0009] Preferably, the bracket has an overall "U" shaped structure with the opening facing the limiting block.

[0010] Preferably, the movable ring is located inside the connecting plate.

[0011] Preferably, the diameter of the collar matches the end of the exhaust fan cylinder.

[0012] The beneficial effects achieved by this utility model are as follows:

[0013] This application achieves rapid connection and disassembly of the protective netting and the exhaust fan casing by setting up a movable ring and limiting components. Workers only need one hand to pull the movable ring and the other hand to rotate the collar to easily complete the disassembly process. During installation, simply rotating the collar is enough to fix the protective netting to the exhaust fan, eliminating the need to manually fix or loosen each connecting component individually, greatly improving maintenance efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the limiting component and the moving ring of this utility model.

[0016] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the limiting block, bracket and sliding rod of this utility model.

[0018] Figure 5 This is a schematic diagram of the arc-shaped insert plate, bracket, and slide bar of this utility model.

[0019] Figure 6 This is a structural schematic diagram of the arc-shaped plate and connecting plate of this utility model.

[0020] In the diagram, 1. Exhaust fan; 2. Protective net; 21. Ring; 3. Limiting component; 31. Moving ring; 32. Arc plate; 321. Extrusion slope; 322. Slot; 33. Connecting plate; 34. Limiting block; 341. Arc groove; 35. Slide rod; 351. Baffle; 352. Spring; 36. Bracket; 37. Arc insert plate; 371. Driving slope. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0023] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] like Figure 1-6 As shown, this utility model provides a hotel emergency smoke removal device, including a smoke exhaust fan 1 and a protective net 2. The protective net 2 is provided with a collar 21, which is sleeved on the cylinder of the smoke exhaust fan 1. The diameter of the collar 21 matches the end of the cylinder of the smoke exhaust fan 1. A plurality of limiting components 3 are evenly distributed along the circumference of the collar 21 and the cylinder of the smoke exhaust fan 1. The number of limiting components 3 is greater than or equal to four sets.

[0025] In addition, all limiting components 3 simultaneously loosen the protective net 2 from the cylinder of the smoke exhaust fan 1 under the action of the moving ring 31. The limiting component 3 includes an arc plate 32, a connecting plate 33, a limiting block 34, a sliding rod 35, a spring 352, and an arc-shaped insert plate 37. The arc plate 32 is connected to the collar 21 through the connecting plate 33 and its end is provided with a pressing inclined surface 321. The limiting block 34 is provided on the cylinder of the smoke exhaust fan 1 and has an arc groove 341 inside that cooperates with the arc plate 32.

[0026] In addition, the slide rod 35 has an "L" shaped structure and is slidably connected to the limiting block 34 and the bracket 36 on the limiting block 34. The bracket 36 has an overall "U" shaped structure and the opening is set towards the limiting block 34. The slide rod 35 is connected to the moving ring 31. The moving ring 31 is located inside the connecting plate 33. By pulling the moving ring 31, the protective net 2 is separated from the smoke exhaust fan 1.

[0027] The spring 352 is sleeved on the slide rod 35 and located between the bracket 36 and the baffle 351 on the slide rod 35. The arc-shaped insert plate 37 is located at the inner end of the slide rod 35 and has a driving inclined surface 371 that cooperates with the extrusion inclined surface 321. The arc plate 32 has a slot 322 that cooperates with the arc-shaped insert plate 37.

[0028] Detailed implementation methods and principles:

[0029] When it is necessary to clean and maintain the interior of the exhaust fan 1 and the protective net 2, the worker pulls the moving ring 31 forward with one hand, causing the moving ring 31 to move the slide rod 35 on the bracket 36. The spring 352 on the slide rod 35 is compressed, and the arc-shaped insert plate 37 disengages from the slot 322 on the arc-shaped plate 32. With the other hand, the worker rotates the collar 21 on the protective net 2, causing the arc-shaped plate 32 to rotate, so that the arc-shaped plate 32 disengages from the arc-shaped groove 341 on the limit block 34. Then, the moving ring 31 is released, and under the elastic force of the spring 352 on the slide rod 35, the arc-shaped insert plate 37 returns to its original position.

[0030] Then, remove the protective net 2 from the smoke exhaust fan 1, and then clean and maintain the inside of the smoke exhaust fan 1 and the protective net 2.

[0031] After the inside of the exhaust fan 1 and the protective net 2 are cleaned and maintained, the collar 21 on the protective net 2 is placed on the cylinder of the exhaust fan 1. Then, the collar 21 is rotated to make the arc plate 32 on the connecting plate 33 rotate and insert into the arc groove 341 of the limiting block 34. The pressing slope 321 on the arc plate 32 presses the arc plate 37 through the driving slope 371 on the arc plate 37, so that the spring 352 on the slide rod 35 is compressed. When the arc plate 37 is aligned with the slot 322 on the arc plate 32, under the elastic force of the spring 352, the arc plate 37 is inserted into the slot 322 on the arc plate 32, thereby fixing the protective net 2 on the exhaust fan 1.

[0032] In summary, this application achieves rapid connection and disassembly of the protective net 2 and the exhaust fan 1 cylinder by setting the movable ring 31 and the limiting component 3. Workers only need one hand to pull the movable ring 31 and the other hand to rotate the collar 21 to easily complete the disassembly process of the protective net 2. During installation, only the collar 21 needs to be rotated to fix the protective net 2 on the exhaust fan 1, eliminating the need for manually fixing or loosening each connecting component individually, greatly improving maintenance efficiency.

[0033] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A hotel emergency smoke removal device, comprising a smoke exhaust fan (1) and a protective net (2), characterized in that: A collar (21) is provided on the protective net (2), and the collar (21) is sleeved on the cylinder of the smoke exhaust fan (1). A number of limiting components (3) are evenly distributed along the circumference of the collar (21) and the cylinder of the smoke exhaust fan (1). Under the action of the moving ring (31), all the limiting components (3) simultaneously release the protective net (2) and the cylinder of the smoke exhaust fan (1). The number of the limiting components (3) is greater than or equal to four groups. The limiting component (3) includes an arc-shaped plate (32), a connecting plate (33), a limiting block (34), a sliding rod (35), a spring (352) and an arc-shaped insertion plate (37). The arc-shaped plate (32) is connected to the collar (21) through the connecting plate (33), and an extrusion inclined surface (321) is provided at its end. The limiting block (34) is provided on the cylinder of the smoke exhaust fan (1), and an arc-shaped groove (341) matching the arc-shaped plate (32) is provided therein. The sliding rod (35) is slidably connected to the limiting block (34) and a bracket (36) on the limiting block (34). The sliding rod (35) is connected to the moving ring (31). The spring (352) is sleeved on the sliding rod (35) and is located between the bracket (36) and a stop disc (351) on the sliding rod (35). The arc-shaped insertion plate (37) is provided at the inner end of the sliding rod (35), and a driving inclined surface (371) matching the extrusion inclined surface (321) is provided thereon. A slot (322) matching the arc-shaped insertion plate (37) is provided on the arc-shaped plate (32).

2. The hotel emergency smoke removal device according to claim 1, characterized in that: The whole sliding rod (35) is in an "L" shape structure.

3. The hotel emergency smoke removal device according to claim 1, characterized in that: The whole bracket (36) is in a "凵" shape structure and the opening faces the limiting block (34).

4. The hotel emergency smoke removal device according to claim 1, characterized in that: The moving ring (31) is located inside the connecting plate (33).

5. The hotel emergency smoke removal device according to claim 1, characterized in that: The diameter of the collar (21) matches the end of the cylinder of the smoke exhaust fan (1).

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