A new exhaust duct

Abstract

The utility model discloses a novel smoke exhaust pipeline relates to smoke exhaust pipeline technical field, aims at providing a kind of smoke exhaust pipeline, which can filter smoke dust in ordinary times, and can guarantee smoke exhaust efficiency in fire time, including main pipeline, branch pipeline, filter device and driving device, wherein, filter device is movably arranged in main pipeline, for the air filtration purification passing through main pipeline, driving device is installed in branch pipeline, for driving filter device rotation, filter device includes the installation sleeve of surface spherical shape, the utility model can be rotated in main pipeline by driving device with installation sleeve, when the axis of installation sleeve is same with main pipeline axis, air in main pipeline can be filtered by filter device at this time, when the axis of installation sleeve is orthogonal with main pipeline axis, smoke dust in main pipeline can be directly discharged into air at this time, improve smoke exhaust efficiency.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust duct technology, and more specifically, to a novel smoke exhaust duct. Background Technology

[0002] In modern building design, smoke extraction systems are a crucial component for ensuring indoor air quality and occupant safety. Their efficiency and flexibility directly impact evacuation efficiency in emergencies and the comfort of the daily environment. Traditional smoke extraction systems rely primarily on ventilation machinery to directly discharge indoor smoke, exhaust gases, and other pollutants outdoors. While this direct discharge method is simple and straightforward, it undoubtedly exacerbates outdoor environmental pollution over the long term, contradicting current green and sustainable building design principles.

[0003] To address this challenge, smoke extraction duct systems equipped with filtration mechanisms have gradually emerged in the market. These systems effectively intercept and adsorb smoke particles and harmful gases by adding high-efficiency filtration devices, such as HEPA filters and activated carbon adsorption layers, inside the ducts. This purifies pollutants before emission, significantly reducing negative impacts on the external environment. However, this improvement has also revealed significant drawbacks in practical applications: in the event of a fire or other emergency, as smoke concentration rises sharply, the filtration mechanism is prone to clogging, rapidly reducing its smoke extraction efficiency or even completely failing. This leads to indoor smoke accumulation, severely hindering evacuation, increasing fire risk, and posing a significant threat to life and property.

[0004] Therefore, a smoke exhaust duct is needed that can filter smoke and dust under normal conditions and ensure smoke exhaust efficiency during a fire. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a new type of smoke exhaust pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel smoke exhaust duct includes a main duct, a branch duct, a filter device, and a drive device. The main duct has a first notch, the branch duct has an opening at its bottom end, and its top end is fixed to and connected to the first notch of the main duct. The filter device is movably disposed inside the main duct for filtering and purifying the air passing through the main duct. The drive device is installed inside the branch duct for driving the filter device to rotate.

[0007] The present invention is further configured such that the filtration device includes an installation sleeve, a filter assembly, a dust storage cylinder, and a base plate. The installation sleeve has a spherical surface and is movably disposed inside the main pipe for installing the filter assembly. The filter assembly is installed inside the installation sleeve for filtering and purifying the air. The bottom of the installation sleeve has a second notch. The bottom end of the dust storage cylinder has a dust outlet for discharging dust, and its top end is fixed to the second notch of the installation sleeve and communicates with the installation sleeve. The base plate is installed at the dust outlet with screws for sealing the dust outlet.

[0008] The present invention is further configured such that the driving device includes a mounting plate, a driving motor and a connecting sleeve, wherein the driving motor is fixed to the lower surface of the mounting plate for driving the filtering device, the mounting plate is installed at the opening of the branch pipe by screws and has a through hole for the output shaft of the driving motor to pass through, and the connecting sleeve is fixed to the lower surface of the base plate and is slidably and non-rotatably sleeved on the output shaft of the driving motor.

[0009] The present invention is further provided that a sealing seat for sealing the first notch is fixed on the upper surface of the mounting plate.

[0010] The present invention is further configured such that the filter assembly includes a mounting frame, a first filter screen and a second filter screen, both of which are detachably mounted in the mounting frame, and a filter layer is filled between the first filter screen and the second filter screen. The mounting frame is mounted in the mounting sleeve by screws.

[0011] The present invention is further configured such that the sealing seat has a clearance groove, and the ash storage cylinder is rotatably disposed in the clearance groove.

[0012] The present invention is further provided that the lower surface of the mounting plate has a handle for easy operation by maintenance personnel.

[0013] Compared with the prior art, this utility model provides a novel smoke exhaust duct with the following advantages: 1. This utility model has a filtration device, which facilitates the filtration of the air flowing in the main pipeline, and avoids the direct emission of a large amount of dust, smoke and other pollutants into the outside air, thus preventing environmental pollution.

[0014] 2. This utility model has a driving device, and the outer surface of the mounting sleeve in the filter device is spherical, which facilitates the driving device to rotate the mounting sleeve in the main pipe. When the axis of the mounting sleeve is the same as the axis of the main pipe, the air in the main pipe can be filtered by the filter device. When the axis of the mounting sleeve is orthogonal to the axis of the main pipe, the smoke and dust in the main pipe can be directly discharged into the air, improving the smoke exhaust efficiency.

[0015] 3. The filter device in this utility model can be disassembled from the main pipe to clean the dust in the ash storage cylinder, or to replace or clean the filter components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a novel smoke exhaust pipe according to the present invention; Figure 2 This is a schematic diagram of the main pipeline and branch pipeline in this utility model; Figure 3 This is a schematic diagram of the structure of the filtration device and the drive device in this utility model; Figure 4 This is an exploded structural diagram of the filtration device in this utility model; Figure 5 This is a schematic diagram of the structure of the mounting sleeve and ash storage cylinder in this utility model; Figure 6 This is a schematic diagram of the drive device in this utility model; Figure 7 This is a schematic diagram of the mounting plate in this utility model.

[0017] In the diagram: 1. Main pipeline; 101. First gap; 2. Branch pipe; 201. Opening; 3. Filter device; 301. Mounting sleeve; 3011. Second notch; 302. Filter assembly; 3021. Mounting frame; 3022. First filter screen; 3023. Second filter screen; 303. Ash storage cylinder; 3031. Ash outlet; 304. Base plate; 4. Drive unit; 401. Mounting plate; 4011. Through hole; 4012. Sealing seat; 4013. Clearance groove; 402. Drive motor; 403. Connecting sleeve; 404. Handle. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figure 1-7 A novel smoke exhaust duct includes a main duct 1, a branch duct 2, a filter device 3, and a drive device 4. The main duct 1 has a first notch 101. The branch duct 2 has an opening 201 at its bottom end, and its top end is fixed to and communicates with the first notch 101 of the main duct 1. The filter device 3 is installed inside the main duct 1 and the branch duct 2. The drive device 4 is installed inside the branch duct 2. The filter device 3 is movably disposed inside the main duct 1 for filtering and purifying the air passing through the main duct 1. The drive device 4 drives the filter device 3 to rotate. The system includes an installation sleeve 301, a filter assembly 302, a dust collection cylinder 303, and a base plate 304. The installation sleeve 301 has a spherical surface and is movably mounted within the main pipe 1. It is used to install the filter assembly 302, which is installed within the installation sleeve 301 to filter and purify the air. The installation sleeve 301 has a second notch 3011 at its bottom. The dust collection cylinder 303 has a dust outlet 3031 at its bottom end for discharging dust, and its top end is fixed to the second notch 3011 of the installation sleeve 301 and communicates with it. The base plate 304 is secured by screws... Installed at the ash outlet 3031, it is used to seal the ash outlet 3031. The filter assembly 302 includes a mounting frame 3021, a first filter screen 3022, and a second filter screen 3023. The first filter screen 3022 and the second filter screen 3023 are detachably installed in the mounting frame 3021. A filter layer is filled between the first filter screen 3022 and the second filter screen 3023. The mounting frame 3021 is installed in the mounting sleeve 301 by screws. The drive device 4 includes a mounting plate 401, a drive motor 402, and a connecting sleeve 403, wherein the drive motor 402 is fixed to the underside of the mounting plate 401. The mounting plate 401 is used to drive the filter device 3. It is installed at the opening 201 of the branch pipe 2 by screws and has a through hole 4011 for the output shaft of the drive motor 402 to pass through. The connecting sleeve 403 is fixed to the lower surface of the base plate 304 and is slidably and non-rotatably sleeved on the output shaft of the drive motor 402. The upper surface of the mounting plate 401 is fixed with a sealing seat 4012 for sealing the first notch 101. The sealing seat 4012 has a relief groove 4013. The ash storage cylinder 303 is rotatably disposed in the relief groove 4013. The lower surface of the mounting plate 401 has a handle 404.

[0022] In use, the base plate 304 and the ash storage cylinder 303 are connected and fixed with screws, and the filter assembly 302 is installed in the mounting sleeve 301 with screws. The ash storage cylinder 303 is inserted into the relief groove 4013 of the sealing seat 4012, and the connecting sleeve 403 under the base plate 304 is sleeved on the output shaft of the drive motor 402. The sealing seat 4012 and the filter device 3 are inserted into the branch pipe 2 until the mounting sleeve 301 is completely located in the main pipe 1, and at this time the axial direction of the mounting sleeve 301 is the same as the axial direction of the main pipe 1. The mounting plate 401 is connected and fixed to the branch pipe 2 with screws. At this time, the air flowing in the main pipe 1 will be filtered by the filter assembly 302 and then discharged into the outside air.

[0023] In use, the drive motor 402 is connected to an external control system, which can be used to start and stop the motor. This is a common existing technology and will not be described in detail here. When a large amount of smoke or dust occurs indoors or a fire occurs, the control system controls the drive motor 402 to start, which drives the base plate 304, the ash storage cylinder 303 and the filter assembly 302 to rotate 90 degrees. At this time, the axis of the mounting sleeve 301 is orthogonal to the axis of the main pipe 1. The smoke and dust in the main pipe 1 can pass through the gap between the mounting sleeve 301 and the main pipe 1 and be quickly discharged into the outdoor environment, reducing harm to people indoors.

[0024] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel smoke exhaust duct, characterized in that, It includes a main pipe (1), branch pipes (2), a filter device (3), and a drive device (4), wherein, The main pipe (1) has a first notch (101). The branch pipe (2) has an opening (201) at its bottom end, and its top end is fixed to the first notch (101) of the main pipe (1) and is connected to the first notch (101) of the main pipe (1). The filter device (3) is movably installed inside the main duct (1) to filter and purify the air passing through the main duct (1). The drive unit (4) is installed inside the branch pipe (2) to drive the filter unit (3) to rotate.

2. The novel smoke exhaust duct according to claim 1, characterized in that, The filter device (3) includes a mounting sleeve (301), a filter assembly (302), a dust storage cylinder (303), and a base plate (304), wherein, The mounting sleeve (301) has a spherical surface and is movably installed inside the main pipe (1) for installing the filter assembly (302). The filter assembly (302) is installed inside the mounting sleeve (301) for filtering and purifying air. The mounting sleeve (301) has a second notch (3011) at the bottom. The ash storage cylinder (303) has an ash outlet (3031) at its bottom end for discharging ash, and its top end is fixed to the second notch (3011) of the mounting sleeve (301) and communicates with the mounting sleeve (301). The base plate (304) is installed at the ash outlet (3031) by screws to seal the ash outlet (3031).

3. The novel smoke exhaust duct according to claim 2, characterized in that, The driving device (4) includes a mounting plate (401), a drive motor (402), and a connecting sleeve (403), wherein, The drive motor (402) is fixed to the lower surface of the mounting plate (401) and is used to drive the filter device (3). The mounting plate (401) is installed at the opening (201) of the branch pipe (2) by screws and has a through hole (4011) for the output shaft of the drive motor (402) to pass through. The connecting sleeve (403) is fixed to the lower surface of the base plate (304) and is slidably and non-rotatably sleeved on the output shaft of the drive motor (402).

4. A novel smoke exhaust duct according to claim 3, characterized in that, The upper surface of the mounting plate (401) is fixed with a sealing seat (4012) for sealing the first notch (101).

5. A novel smoke exhaust duct according to claim 2, characterized in that, The filter assembly (302) includes a mounting frame (3021), a first filter (3022), and a second filter (3023). Both the first filter screen (3022) and the second filter screen (3023) are detachably installed within the mounting frame (3021), and a filter layer is filled between the first filter screen (3022) and the second filter screen (3023). The mounting frame (3021) is installed in the mounting sleeve (301) by screws.

6. A novel smoke exhaust duct according to claim 4, characterized in that, The sealing seat (4012) has a relief groove (4013), and the ash storage cylinder (303) is rotatably disposed in the relief groove (4013).

7. A novel smoke exhaust duct according to claim 3, characterized in that, The lower surface of the mounting plate (401) has a handle (404).

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