Smoke particle treatment structure for axial-flow type fire-fighting smoke exhaust fan

Abstract

The utility model relates to the technical field of axial-flow type fire-fighting smoke exhaust fans, solves the technical problem that impurities falling during cleaning cannot be collected, and particularly relates to a smoke particle treatment structure for an axial-flow type fire-fighting smoke exhaust fan, which comprises an air pipe serving as a supporting foundation, and butt joint side rings are fixedly connected to two ends of the air pipe. The middle of the top end and the middle of the bottom end of the air pipe are fixedly connected with fixing frames, the air pipe is provided with an external air outlet assembly used for smoke exhaust and ventilation, and an automatic cleaning and filtering assembly used for filtering particle smoke dust is arranged on a butt joint edge ring of the air outlet end of the air pipe. Due to the arrangement of the automatic cleaning and filtering assembly, a filtering part can be swept and cleaned, power is provided by using the mechanical equipment for providing power during ventilation, the production cost is reduced, dust generated by cleaning can be collected, and the situation that the dust flows back into a room can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of axial flow fire exhaust fans, and in particular to a smoke particle treatment structure for axial flow fire exhaust fans. Background Technology

[0002] Axial flow fire-fighting smoke exhaust fans, as a type of ventilation equipment, can be installed in the mechanical smoke exhaust system of a building to remove smoke, and can also be used for ventilation. They generally consist of a casing, a motor located at the center of the casing, and an impeller driven by the motor. When the motor drives the impeller to rotate, the gas flows along a direction parallel to the fan axis. However, during operation, existing axial flow fire-fighting smoke exhaust fans automatically clean the filter screen, sweeping particulate impurities attached to the filter screen into the fan's inlet duct. Excessive accumulation of these impurities can lead to backflow, thus polluting the indoor environment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a dust particle treatment structure for axial flow fire exhaust fans, which solves the technical problem of not being able to collect cleaned and fallen impurities, thereby improving practicality.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a smoke and dust particle treatment structure for an axial flow fire exhaust fan, including a duct as a supporting foundation, both ends of the duct are fixedly connected with a connecting edge ring, the top and bottom of the duct are fixedly connected with a fixing frame, the duct is provided with an external air outlet assembly for smoke exhaust ventilation, and the connecting edge ring at the air outlet end of the duct is provided with an automatic cleaning filter assembly for filtering particulate smoke and dust;

[0005] The automatic cleaning filter assembly includes a filter support fixedly connected to a connecting ring at the air outlet end of the air duct. A storage cover is fixedly connected to the end of the filter support near the air duct, and an air inlet mesh plate is fixedly connected to the end of the storage cover away from the filter support. A connecting protrusion is rotatably connected to the middle of the air inlet mesh plate, and a sweeping rod is fixedly connected to the end of the connecting protrusion near the filter support. A filter screen is movably connected to the filter support.

[0006] Preferably, the diameter of the filter screen is the same as the inner diameter of the storage cover, and the inner width of the storage cover is greater than the thickness of the sweeping rod.

[0007] Preferably, the length of the sweeping rod is the same as the diameter of the filter screen, and the end of the sweeping rod near the filter screen is in contact with the filter screen.

[0008] Preferably, the external air outlet assembly includes a drive motor mounted on the outside of the duct via a base, a protective box fixedly connected to the middle of the inner side of the duct via a bracket, a stabilizing bracket fixedly connected to the inner side of the duct between the protective box and the filter support, a driven bevel gear rotatably connected to the stabilizing bracket, an active bevel gear connected to the drive end of the drive motor, a fan impeller fixedly connected to the middle section of the driven bevel gear, and a mating concave rod fixedly connected to the end of the driven bevel gear away from the fan impeller.

[0009] Preferably, the driven bevel gear and the driving bevel gear mesh with each other, and the meshing points of both are located inside the protective box.

[0010] Preferably, the mating concave rod and the mating convex rod are fitted together, and the length of the protruding part of the mating convex rod is greater than the length of the concave part of the mating concave rod.

[0011] By means of the above technical solution, this utility model provides a smoke particle treatment structure for an axial flow fire exhaust fan, which has at least the following beneficial effects:

[0012] 1. Due to the automatic cleaning filter assembly, this utility model can perform sweeping cleaning of the filter components, and uses a motorized device that provides power during ventilation to reduce production costs. It can also collect the dust generated during cleaning, thus preventing dust from flowing back into the room.

[0013] 2. Due to the external air outlet component, this utility model can place the motorized equipment outside the air duct, thereby avoiding the problem of exhaust smoke and dust passing through the motorized equipment, causing smoke or oil stains to adhere to the surface of the motorized equipment, reducing the heat dissipation efficiency of the motorized equipment and affecting the subsequent use efficiency. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram:

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

[0017] Figure 2 This is a schematic diagram of the drive motor mounting structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the driven bevel gear mounting structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting structure of the connecting protrusion of this utility model.

[0020] In the diagram: 1. Air duct; 2. Connecting edge ring; 3. External air outlet assembly; 31. Drive motor; 32. Protective box; 33. Stabilizing bracket; 34. Driven bevel gear; 35. Active bevel gear; 36. Fan impeller; 37. Connecting recess;

[0021] 4. Automatic cleaning filter assembly; 41. Filter support; 42. Storage cover; 43. Air inlet grille; 44. Connecting rod; 45. Sweeping rod; 46. Filter screen;

[0022] 5. Fixture. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Existing axial flow fire exhaust fans, during automatic filter cleaning, sweep particulate impurities attached to the filter into the fan's inlet duct. Excessive accumulation can lead to backflow of these impurities, causing indoor pollution. Please refer to... Figures 1-4 This embodiment provides a smoke particle treatment structure for an axial flow fire-fighting smoke exhaust fan, solving the technical problem of not being able to collect cleaned and fallen impurities. The device includes a duct 1 as a supporting foundation, with connecting rings 2 fixedly connected to both ends of the duct 1. A fixing frame 5 is fixedly connected to the top and bottom of the duct 1. An external air outlet assembly 3 for smoke exhaust ventilation is installed on the duct 1, and an automatic cleaning filter assembly 4 for filtering particulate smoke is installed on the connecting ring 2 at the air outlet end of the duct 1. Ventilation is achieved through the external air outlet assembly 3, while filtration and self-cleaning are performed by the automatic cleaning filter assembly 4.

[0026] In existing smoke exhaust fans, some have self-cleaning functions. However, the dust generated during cleaning cannot be collected in time and is temporarily stored inside the duct. Excessive dust accumulation can lead to backflow into the room, causing indoor pollution. To address this issue, an automatic cleaning filter assembly 4 is proposed. The automatic cleaning filter assembly 4 includes a filter support 41 fixedly connected to the connecting ring 2 at the outlet end of the duct 1. A storage cover 42 is fixedly connected to the end of the filter support 41 near the duct 1, and an air inlet screen 43 is fixedly connected to the end of the storage cover 42 away from the filter support 41. A connecting protrusion 44 is rotatably connected to the middle of the air inlet screen 43, and a sweeping rod 45 is fixedly connected to the end of the connecting protrusion 44 near the filter support 41. A filter screen 46 is movably connected to the filter support 41. The sweeping rod 45 sweeps and cleans the dust on the filter screen 46, and the dust is temporarily collected by the semi-enclosed storage cover 42.

[0027] To provide storage space for the dust falling from the sweeper, the diameter of the filter screen 46 is the same as the inner diameter of the storage cover 42, and the inner width of the storage cover 42 is greater than the thickness of the sweeper rod 45.

[0028] To ensure that the dust on the filter screen 46 can be completely swept off and to maintain its filtration efficiency, the length of the sweeping rod 45 is the same as the diameter of the filter screen 46, and the end of the sweeping rod 45 closest to the filter screen 46 is in contact with the filter screen 46.

[0029] Example 2

[0030] Based on Example 1, which solved the technical problem of not being able to collect the impurities that fall off during cleaning, Example 1 still has the problem that dust will adhere to the surface of the motorized equipment, affecting heat dissipation. Figures 1-4 As shown, the specific implementation process is as follows: To avoid the problem of dust or oil stains adhering to the outside of the motorized equipment due to its placement inside the duct 1, affecting the heat dissipation efficiency of the motorized equipment, an external air outlet assembly 3 is proposed. The external air outlet assembly 3 includes a drive motor 31 mounted on the outside of the duct 1 via a base. A protective box 32 is fixedly connected to the middle of the inner side of the duct 1 via a bracket. A stabilizing bracket 33 is fixedly connected to the inner side of the duct 1 between the protective box 32 and the filter support 41. A driven bevel gear 34 is rotatably connected to the stabilizing bracket 33. The drive end of the drive motor 31 is connected to an active bevel gear 35. A fan impeller 36 is fixedly connected to the middle section of the driven bevel gear 34. A docking recess 37 is fixedly connected to the end of the driven bevel gear 34 away from the fan impeller 36. The drive motor 31 drives the driven bevel gear 34 and the active bevel gear 35 to rotate, thereby achieving ventilation. The power is transmitted to the automatic cleaning filter assembly 4 through the driven bevel gear 34, reducing the investment in motorized equipment and lowering production costs.

[0031] In order to change the power output direction of the drive motor 31, the driven bevel gear 34 and the driving bevel gear 35 mesh with each other, and the meshing points of the two are both inside the protective box 32.

[0032] To facilitate power transmission and subsequent disassembly of the automatic cleaning filter assembly 4, the mating concave rod 37 and the mating convex rod 44 are engaged, with the length of the protruding portion of the mating convex rod 44 being greater than the length of the recessed portion of the mating concave rod 37.

[0033] It should be noted that, in this document, the terms “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 process, method, article, or apparatus.

[0034] 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 smoke dust particle treatment structure for an axial flow type fire smoke exhaust fan, comprising a duct (1) as a support base, characterized in that: The wind pipe (1) both ends are fixedly connected with butt joint edge ring (2), the wind pipe (1) top and bottom end middle are fixedly connected with fixed frame (5), the wind pipe (1) is provided with for the external connection of the wind component (3) for smoke ventilation, the wind pipe (1) the butt joint edge ring (2) on the air outlet end is provided with automatic cleaning filter component (4) for filtering particulate smoke, The automatic cleaning filter component (4) includes a filter screen support (41) fixedly connected to the butt joint edge ring (2) on the air outlet end of the wind pipe (1), the filter screen support (41) is fixedly connected with a storage cover (42) close to one end of the wind pipe (1), the storage cover (42) is fixedly connected with an air inlet mesh plate (43) away from one end of the filter screen support (41), the air inlet mesh plate (43) is rotatably connected with a butt joint convex rod (44) in the middle, the butt joint convex rod (44) is fixedly connected with a sweeping rod (45) close to one end of the filter screen support (41), the filter screen support (41) is movably connected with a filter screen (46).

2. A smoke dust particle treatment structure for an axial flow fire smoke exhaust fan according to claim 1, characterized in that: The diameter of the filter screen (46) is the same as the inside diameter of the storage cover (42), and the inside width of the storage cover (42) is greater than the thickness of the sweeping rod (45).

3. A smoke dust particle treatment structure for an axial flow fire smoke exhaust fan according to claim 1, characterized in that: The length of the sweeping rod (45) is the same as the diameter of the filter screen (46), and the end of the sweeping rod (45) close to the filter screen (46) is in contact with the filter screen (46).

4. A smoke dust particle treatment structure for an axial flow fire smoke exhaust fan according to claim 1, characterized in that: The external connection of the wind component (3) includes a transmission motor (31) mounted on one side of the wind pipe (1) through a base, a protection box (32) is fixedly connected to the inside of the wind pipe (1) through a support in the middle, a stable support (33) is fixedly connected to the inside of the wind pipe (1) between the protection box (32) and the filter screen support (41), a driven bevel gear rod (34) is rotatably connected to the stable support (33), a driving bevel gear rod (35) is connected to the transmission end of the transmission motor (31), a fan impeller (36) is fixedly connected to the middle segment of the driven bevel gear rod (34), and a butt joint concave rod (37) is fixedly connected to one end of the driven bevel gear rod (34) away from the fan impeller (36).

5. The smoke dust particle treatment structure for the axial flow type fire smoke exhaust fan according to claim 4, characterized in that: The driven bevel gear rod (34) and the driving bevel gear rod (35) are engaged, and the engagement of the two is inside the protection box (32).

6. A smoke dust particle treatment structure for an axial flow fire smoke exhaust fan according to claim 4, characterized in that: The butt joint concave rod (37) is embedded with the butt joint convex rod (44), and the length of the convex part of the butt joint convex rod (44) is greater than the length of the concave part of the butt joint concave rod (37).

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