A detachable multifunctional device for noise reduction, purification and pressure increase

Abstract

The application provides a detachable multifunctional device for noise reduction, purification and pressure boosting, and belongs to the technical field of smoke exhaust. The device comprises a smoke exhaust pipe, wherein the smoke exhaust pipe is composed of detachably connected sound attenuation outer pipes, purification pipes and pressure boosting pipes, the sound attenuation outer pipes, the purification pipes and the pressure boosting pipes are sequentially arranged and are respectively provided with sound attenuation manifold structures, purification mechanisms and pressure boosting mechanisms, the pressure boosting mechanism comprises a pressure boosting impeller structure, and the pressure boosting impeller structure is arranged between the smoke outlet of the purification pipe and the smoke outlet of the pressure boosting pipe. The smoke exhaust pipe integrates the functions of noise reduction, purification and pressure boosting, can realize noise reduction and adsorption purification when the oil fume is exhausted, can prevent the problems of insufficient smoke exhaust pressure or oil fume backflow caused by airflow interference of the smoke outlet when high floors, multiple users simultaneously use integrated kitchens or oil fume exhausters, and the smoke exhaust pipe composed of detachably connected sound attenuation outer pipes, purification pipes and pressure boosting pipes can be conveniently cleaned.

Description

Technical Field

[0001] This invention belongs to the field of kitchen utensils technology and relates to a detachable multi-functional device for noise reduction, purification and pressurization. Background Technology

[0002] With the continuous improvement of urbanization in China, the pursuit of a high-quality life is also rising, and integrated cooktops and range hoods are widely favored due to their excellent smoke extraction effect. However, as users become more widespread, it has been found that there is noise and grease buildup in the exhaust pipes. Furthermore, when multiple users use the equipment simultaneously, the small distance between the exhaust vents on different floors can easily create fluid dynamic conflicts, affecting the smoke extraction of integrated cooktops and range hoods and potentially causing backflow of grease. Therefore, there is a need to design a multi-functional device that can reduce noise in the exhaust pipes, purify grease, and solve the problem of insufficient exhaust pressure when multiple users in high-rise buildings use integrated cooktops or range hoods simultaneously.

[0003] For example, a Chinese patent discloses a smoke exhaust device [application number: 201611183675.X], which includes a hood and a jet generating device. The hood has an oil fume outlet, and the jet generating device includes a baffle. The baffle is connected to one side of the hood and extends downward along the hood. A jet port is opened at the lower end of the baffle away from the hood. The baffle forms a first guide surface that smoothly connects to the jet port. The first guide surface is used to guide the airflow ejected from the jet port to the oil fume outlet. This patent can solve the problem of oil fumes at the edge of the smoke exhaust device spreading towards the user.

[0004] However, the problems of noise reduction, fume purification, and insufficient exhaust pressure in the fume exhaust pipes have not been well resolved. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a detachable multifunctional device for noise reduction, purification, and pressurization.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] A detachable noise reduction, purification, and pressurization multifunctional device includes a smoke exhaust pipe, which is formed by a detachably connected silencing outer pipe, a purification pipe, and a pressurization pipe. The silencing outer pipe, the purification pipe, and the pressurization pipe are arranged sequentially and are respectively provided with a silencing manifold structure, a purification mechanism, and a pressurization mechanism. The pressurization mechanism includes a pressurization impeller structure, which is disposed between the smoke outlet of the purification pipe and the smoke outlet of the pressurization pipe. When the airflow flows from the smoke outlet of the purification pipe through the pressurization impeller structure to the smoke outlet of the pressurization pipe, it can drive the pressurization impeller structure to rotate.

[0008] In this invention, the exhaust pipe integrates multiple functions such as noise reduction, purification and pressurization. It can achieve noise reduction and adsorption purification when oil fumes are discharged. In addition, it can prevent the problem of oil fumes backflow caused by airflow interference at multiple smoke outlets when multiple users use integrated stoves or range hoods at the same time in high-rise buildings. The exhaust pipe is formed by a combination of a detachable sound-absorbing outer pipe, a purification pipe and a pressurization pipe, which can also be easily cleaned.

[0009] Specifically, the silencer manifold structure can reduce the noise generated when oil fumes pass through the silencer outer pipe, and the purification mechanism can adsorb and purify the oil fumes. When the airflow mixed with oil fumes flows from the exhaust port of the purification pipe through the booster impeller structure to the exhaust port of the booster pipe, the temperature difference between the airflow and the two sides of the booster impeller structure can drive the booster impeller structure to rotate. After the booster impeller structure rotates and forms a negative pressure inside, it can pressurize the exhaust oil fumes, thereby solving the problem of oil fume backflow.

[0010] In the aforementioned detachable noise reduction, purification, and pressurization multifunctional device, the pressurization impeller structure includes a disc, and the disc is provided with an annular pressurization blade structure on the side near the smoke outlet of the purification pipe. The smoke outlet of the purification pipe is connected to the center of the pressurization blade structure, and the smoke outlet of the pressurization pipe is connected to the outer side of the pressurization blade structure. The smoke exhaust direction of the disc at the smoke outlet of the purification pipe is perpendicular to that of the disc, and there is a gap between the disc and the pipe wall of the pressurization pipe.

[0011] The vertically oriented impeller at the exhaust port of the purification pipe can block the airflow exiting from the exhaust port. Since the exhaust port of the purification pipe is connected to the center of the booster blade structure, the airflow can only flow from the inside to the outside of the booster blade structure. When the airflow flows from the inside to the outside of the booster blade structure, it can exert a thrust on the booster blade structure. Under the action of the thrust, the impeller can be driven to rotate. The gas after passing through the booster blade structure can be discharged from the exhaust port of the booster pipe through the gap between the impeller and the pipe wall of the booster pipe.

[0012] In the aforementioned detachable noise reduction, purification, and pressurization multifunctional device, the pressurization blade structure is formed by assembling several blades arranged circumferentially along a wheel. The blades are vertically fixed to the wheel, and their cross-sections are arc-shaped. The concave surfaces of several blades face the same side, and a smoke exhaust channel is formed between adjacent blades. The inner and outer sides of the smoke exhaust channel are connected to the smoke outlets of the purification pipe and the pressurization pipe, respectively. After entering the pressurization pipe and being blocked by the wheel, the airflow can only be discharged through the smoke exhaust channels between the blades. Because the blade cross-sections are arc-shaped and the concave surfaces of several blades face the same side, the airflow exerts a thrust on the concave surfaces of the blades as it passes through them, thereby driving the wheel to rotate.

[0013] In the above-mentioned detachable noise reduction, purification and pressurization multifunctional device, the silencer manifold structure consists of a perforated plate and a perforated pipe and a ventilation pipe installed axially along the silencer outer pipe on the perforated plate. The perforated plate and the wall of the silencer outer pipe are sealed together, and the perforated pipe is densely covered with through holes connecting the inner and outer sides of the perforated pipe. When airflow passes rapidly through the outer silencing duct, sound waves are generated between the airflow and the duct wall and propagate directly outward through the duct wall. In this embodiment, the perforated plate prevents the airflow from passing directly through the outer silencing duct and forces it to flow through the perforated pipe and ventilation pipe to the other side of the perforated plate. This reduces the airflow velocity within the outer silencing duct, thereby decreasing the amount of sound waves generated between the airflow and the duct wall that can be directly transmitted to the outside through the duct wall. Although the airflow velocity is relatively high within the perforated pipe and ventilation pipe, since the walls of the perforated pipe and ventilation pipe are not in direct contact with the outside, the sound waves are reduced by collisions with the gas and duct wall surface within the outer silencing duct as they propagate outward, thus achieving the purpose of noise reduction.

[0014] Preferably, the advantage of setting a perforated pipe is that when gas enters the silencer outer pipe, some gas will not be able to directly enter the ventilation pipe but will hit the perforated plate. Setting a perforated pipe can enable this part of the gas to quickly enter the exhaust side from the smoke inlet side of the silencer outer pipe.

[0015] In the above-mentioned detachable noise reduction, purification and pressurization multifunctional device, one perforated tube is provided and located at the axis of the perforated plate, and six ventilation pipes are provided and arranged around the perforated tube.

[0016] The six ventilation ducts consist of two long ducts, two medium ducts, and two short ducts. The long, medium, and short ducts have the same diameter and their lengths decrease sequentially. The perforated duct has the same length as the long ducts, and its opening is flush with the side of the six ventilation ducts closest to the purification duct. Because the six ventilation ducts have three different lengths, when the openings of the ventilation ducts closest to the purification duct are flush, the openings on the other side of the six ventilation ducts will have varying lengths. This creates a multi-layered smoke intake structure on the smoke intake side of the silencer duct, facilitating the rapid entry of gas from the smoke intake side of the silencer duct to the smoke exhaust side.

[0017] In the aforementioned detachable noise reduction, purification, and pressurization multifunctional device, the purification mechanism includes an adsorption chamber containing activated carbon installed inside a purification pipe. The purification pipe also has a front plate with a smoke inlet and a rear plate with a smoke outlet at both ends. The inner diameter of the smoke inlet on the front plate is larger than the inner diameter of the smoke outlet on the rear plate. The adsorption chamber with activated carbon can adsorb and purify the oil fumes as they pass through, while the rear plate concentrates the discharged oil fumes at the center of the pressurization blade structure.

[0018] In the above-mentioned detachable noise reduction, purification and pressurization multifunctional device, the outer silencing tube is also provided with a detachable connection structure for connecting the perforated plate and the purification tube. The purification tube and the pressurization tube are screwed together. The detachable connection structure includes four F-shaped grooves set on the inner wall of the outer silencing tube near the purification tube. The four F-shaped grooves are evenly spaced along the circumference of the outer silencing tube. The F-shaped groove includes a connecting groove with a groove inlet on the side near the purification tube, and a front end slot and a rear end slot connected to the connecting groove and having an arc-shaped cross section.

[0019] The outer edge of the perforated plate has four protrusions (number one) corresponding to the front end slot, and the outer wall of the purification pipe has four protrusions (number two) corresponding to the rear end slot. This structure allows for detachable connection of the silencing outer pipe, perforated plate, purification pipe, and booster pipe.

[0020] The aforementioned detachable noise reduction, purification, and pressurization multifunctional device also includes a detachable wheel mounting structure for mounting the wheel. The detachable wheel mounting structure includes an inner connecting plate and a shaft column disposed in the purification pipe and an outer connecting plate disposed in the pressurization pipe. The inner connecting plate is fixed in the smoke inlet of the front plate by several connecting rods, and the outer connecting plate is fixed in the smoke outlet of the pressurization pipe by several connecting rods.

[0021] The inner end of the inner connecting disk has a protruding first connecting short shaft. The two ends of the shaft are a hollow end and a solid end, respectively. The first connecting short shaft is inserted into the hollow end. The solid end has a circular groove for installing a first bearing. The center of the wheel is fixedly connected to a second connecting short shaft that is inserted into the first bearing.

[0022] The wheel is further provided with a cross-shaped connecting shaft on the side away from the second connecting short shaft. A connecting block with a cross-shaped groove adapted to the cross-shaped connecting shaft is installed on the inner side of the outer connecting disk. This connecting block is rotatably connected to the outer connecting disk via the second bearing. This structure allows for the detachable installation of the wheel and enables its rotation.

[0023] In the aforementioned detachable noise reduction, purification, and pressurization multifunctional device, there is a gap between the pressurization blade structure and the rear disc.

[0024] In the aforementioned detachable noise reduction, purification, and pressurization multifunctional device, there is a gap between the shaft and the wheel.

[0025] Compared with existing technologies, the advantages of this invention are:

[0026] 1. The exhaust pipe integrates multiple functions such as noise reduction, purification and pressurization. It can reduce noise and adsorb and purify oil fumes when they are discharged. It can also prevent problems such as insufficient exhaust pressure or backflow of oil fumes caused by airflow interference at the exhaust port when multiple users use integrated stoves or range hoods at the same time in high-rise buildings. The exhaust pipe is composed of a detachable sound-absorbing outer pipe, a purification pipe and a pressurization pipe, which can also be easily cleaned.

[0027] 2. The silencer manifold structure can reduce the noise generated when oil fumes pass through the silencer outer pipe. The purification mechanism can adsorb and purify the oil fumes. When the airflow mixed with oil fumes flows from the exhaust port of the purification pipe through the booster impeller structure to the exhaust port of the booster pipe, the temperature difference between the airflow and the two sides of the booster impeller structure can drive the booster impeller structure to rotate. After the booster impeller structure rotates and forms a negative pressure inside, it can pressurize the exhaust oil fumes, thereby solving the problem of oil fume backflow.

[0028] 3. When airflow passes rapidly through the outer silencer pipe, sound waves are generated between the airflow and the pipe wall and are transmitted directly outward through the pipe wall. In this embodiment, the perforated plate prevents the airflow from passing directly through the outer silencer pipe. Instead, the airflow passes through the perforated pipe 8 and the ventilation pipe to the other side of the perforated plate. This reduces the airflow velocity within the outer silencer pipe, thereby reducing the amount of sound waves generated between the airflow and the pipe wall that can be transmitted directly to the outside through the pipe wall. The airflow velocity is relatively high in the perforated pipe and the ventilation pipe, but since the pipe walls of the perforated pipe and the ventilation pipe are not in direct contact with the outside, the sound waves are reduced by collisions with the gas and pipe wall surface within the outer silencer pipe when they are transmitted outward, thus achieving the purpose of noise reduction.

[0029] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0030] Figure 1 This is an exploded view of the present invention;

[0031] Figure 2 This is a cross-sectional view of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the silencing outer tube;

[0033] Figure 4 This is a schematic diagram of the booster mechanism;

[0034] Figure 5 This is a schematic diagram of the purification pipe structure;

[0035] Figure 6 This is a partial explosion diagram of the present invention.

[0036] In the diagram, the components are: 1. Silencing outer pipe; 2. Purification pipe; 3. Pressurization pipe; 4. Wheel; 5. Blade; 6. Smoke exhaust channel; 7. Perforated plate; 8. Perforated pipe; 9. Ventilation pipe; 10. Adsorption chamber; 11. Front plate; 12. Rear plate; 13. Connecting groove; 14. Front end slot; 15. Rear end slot; 16. Protrusion No. 1; 17. Protrusion No. 2; 18. Inner connecting plate; 19. Shaft column; 20. Outer connecting plate; 21. Connecting short shaft No. 1; 22. Bearing No. 1; 23. Connecting short shaft No. 2; 24. Cross-shaped connecting shaft; and 25. Connecting block. Detailed Implementation

[0037] like Figure 1 and Figure 2 As shown, a detachable noise reduction, purification, and pressurization multifunctional device includes a smoke exhaust pipe, which is formed by a detachably connected silencing outer pipe 1, a purification pipe 2, and a pressurization pipe 3. The silencing outer pipe 1, the purification pipe 2, and the pressurization pipe 3 are arranged sequentially and are respectively provided with a silencing manifold structure, a purification mechanism, and a pressurization mechanism. The pressurization mechanism includes a pressurization impeller structure, which is located between the smoke outlet of the purification pipe 2 and the smoke outlet of the pressurization pipe 3. When the airflow flows from the smoke outlet of the purification pipe 2 through the pressurization impeller structure to the smoke outlet of the pressurization pipe 3, it can drive the pressurization impeller structure to rotate.

[0038] In this invention, the exhaust pipe integrates multiple functions such as noise reduction, purification and pressurization. It can achieve noise reduction and adsorption purification when oil fumes are discharged. In addition, it can prevent the problem of oil fume backflow caused by airflow interference at multiple smoke outlets when multiple users use integrated stoves or range hoods at the same time in high-rise buildings. The exhaust pipe is formed by the combination of a detachable sound-absorbing outer pipe 1, a purification pipe 2 and a pressurization pipe 3, which can also be easily cleaned.

[0039] Specifically, the silencer manifold structure can reduce the noise generated when oil fumes pass through the silencer outer pipe, and the purification mechanism can adsorb and purify the oil fumes. When the airflow mixed with oil fumes flows from the exhaust port of the purification pipe 2 through the booster impeller structure to the exhaust port of the booster pipe 3, the temperature difference between the airflow and the two sides of the booster impeller structure can drive the booster impeller structure to rotate. After the booster impeller structure rotates and forms a negative pressure inside, it can pressurize the exhaust oil fumes, thereby solving the problem of oil fume backflow.

[0040] Specifically, combining Figure 1 , Figure 2 and Figure 6 As shown, the booster impeller structure includes a disc 4. The disc 4 has an annular booster blade structure on the side near the smoke outlet of the purification pipe 2. The smoke outlet of the purification pipe 2 is connected to the center of the booster blade structure. The smoke outlet of the booster pipe 3 is connected to the outer side of the booster blade structure. The smoke exhaust direction of the disc 4 at the smoke outlet of the purification pipe 2 is perpendicular to that of the disc 4, and there is a gap between the disc 4 and the pipe wall of the booster pipe 3.

[0041] The wheel at the smoke outlet of the purification pipe 2, which is perpendicular to the exhaust direction, can block the airflow discharged from the smoke outlet of the purification pipe 2. Since the smoke outlet of the purification pipe 2 is connected to the center of the booster blade structure, the airflow can only flow from the inside to the outside of the booster blade structure. When the airflow flows from the inside to the outside of the booster blade structure, it can exert a thrust on the booster blade structure. Under the action of the thrust, the wheel can be driven to rotate. The gas after passing through the booster blade structure can be discharged from the smoke outlet of the booster pipe through the gap between the wheel 4 and the pipe wall of the booster pipe 3.

[0042] Preferably, combined with Figure 6 As shown, the booster blade structure is formed by assembling several blades 5 arranged circumferentially along the wheel 4. The blades 5 are vertically fixed to the wheel 4, and their cross-sections are arc-shaped. The concave surfaces of several blades 5 face the same side, and a smoke exhaust channel 6 is formed between adjacent blades 5. The inner and outer sides of the smoke exhaust channel 6 are connected to the smoke outlets of the purification pipe 2 and the booster pipe 3, respectively. After the airflow enters the booster pipe and is blocked by the wheel, it can only be discharged through the smoke exhaust channels between the blades. Because the cross-sections of the blades are arc-shaped and the concave surfaces of several blades 5 face the same side, the airflow exerts a thrust on the concave surfaces of the blades as it passes through them, thereby driving the wheel to rotate.

[0043] Specifically, combining Figure 1 , Figure 2 and Figure 4 As shown, the silencing manifold structure consists of a perforated plate 7 and a perforated tube 8 and a ventilation tube 9 installed axially along the silencing outer tube 1 on the perforated plate 7. The perforated plate 7 and the wall of the silencing outer tube 1 are sealed together. The perforated tube 8 is densely covered with through holes connecting the inner and outer sides of the perforated tube 8. When airflow passes rapidly through the silencing outer tube, the airflow and the wall of the silencing outer tube will form sound waves that are directly transmitted outward through the wall. In this embodiment, the perforated plate prevents the airflow from passing directly through the silencing outer tube, and instead forces it to flow through the perforated tube 8 and the ventilation tube to the other side of the perforated plate. This results in a lower airflow velocity within the silencing outer tube, thereby reducing the amount of sound waves that can be directly transmitted to the outside through the wall of the silencing outer tube formed between the airflow and the wall. Although the airflow velocity is relatively high within the perforated tube and the ventilation tube, since the walls of the perforated tube and the ventilation tube are not in direct contact with the outside, the sound waves are attenuated by collisions with the gas and the wall surface within the silencing outer tube when they are transmitted outward, thus achieving the purpose of noise reduction.

[0044] Preferably, the advantage of setting a perforated pipe is that when gas enters the silencer outer pipe, some gas will not be able to directly enter the ventilation pipe but will hit the perforated plate. Setting a perforated pipe can enable this part of the gas to quickly enter the exhaust side from the smoke inlet side of the silencer outer pipe.

[0045] Preferably, one perforated pipe 8 is provided and located at the axis of the perforated plate 7, and six ventilation pipes 9 are provided and arranged circumferentially along the perforated pipe 8. The six ventilation pipes 9 include two long pipes, two medium pipes, and two short pipes. The long pipes, medium pipes, and short pipes have the same diameter and their lengths decrease progressively. The length of the perforated pipe 8 is equal to the length of the long pipes, and the openings of the perforated pipe 8 and the six ventilation pipes 9 are flush with the side of the purification pipe 2. Since the six ventilation pipes have three different lengths, when the openings of the ventilation pipes are flush with the side of the purification pipe, the openings on the other side of the six ventilation pipes will have different lengths. This allows the smoke inlet side of the silencer outer pipe to form a multi-layered smoke inlet structure, which is conducive to the rapid entry of gas from the smoke inlet side of the silencer outer pipe into the smoke exhaust side.

[0046] Specifically, combining Figure 1 , Figure 2 and Figure 5 As shown, the purification mechanism includes an adsorption chamber 10 containing activated carbon within the purification pipe 2. The purification pipe 2 also has a front plate 11 with a smoke inlet and a rear plate 12 with a smoke outlet at each end. The inner diameter of the smoke inlet on the front plate 11 is larger than the inner diameter of the smoke outlet on the rear plate 12. The adsorption chamber 10 with activated carbon adsorbs and purifies the oil fumes as they pass through, while the rear plate 12 concentrates the discharged oil fumes at the center of the pressurizing blade structure.

[0047] Preferably, combined with Figure 1 , Figures 3-5 As shown, the silencing outer tube 1 is also equipped with a detachable connection structure for connecting the perforated plate 7 and the purification tube 2. The purification tube 2 and the booster tube 3 are screwed together. The detachable connection structure includes four F-shaped grooves on the inner wall of the silencing outer tube 1 near the purification tube 2. The four F-shaped grooves are evenly spaced along the circumference of the silencing outer tube 1. Each F-shaped groove includes a connecting groove 13 with a sliding groove inlet on the side near the purification tube 2, and a front end slot 14 and a rear end slot 15 connected to the connecting groove 13 and having an arc-shaped cross-section. The outer edge of the perforated plate 7 is provided with four first protrusions 16 corresponding to the front end slots 14 along the circumference. The outer wall of the purification tube 2 is provided with four second protrusions 17 corresponding to the rear end slots 15 along the circumference. The above structure enables the detachable connection of the silencing outer tube 1, the perforated plate, the purification tube, and the booster tube.

[0048] Preferably, combined with Figure 2 and Figure 6As shown, it also includes a detachable wheel mounting structure for mounting the wheel 4. The detachable wheel mounting structure includes an inner connecting plate 18 and a shaft 19 disposed in the purification pipe 2, and an outer connecting plate 20 disposed in the booster pipe 3. The inner connecting plate 18 is fixed to the smoke inlet of the front plate 11 by several connecting rods, and the outer connecting plate 20 is fixed to the smoke outlet of the booster pipe 3 by several connecting rods. A first connecting short shaft 21 protrudes from the inner end of the inner connecting plate 18, and the two ends of the shaft 19 are hollow ends. The first connecting short shaft 21 is inserted into the hollow end, and the solid end has a circular groove for mounting a first bearing 22. A second connecting short shaft 23, inserted into the first bearing 22, is fixedly connected to the center of the wheel 4. A cross-shaped connecting shaft 24 is also provided on the side of the wheel 4 away from the second connecting short shaft 23. A connecting block 25 with a cross-shaped groove adapted to the cross-shaped connecting shaft 24 is installed on the inner side of the outer connecting plate 20. The connecting block 25 is rotatably connected to the outer connecting plate 20 through the second bearing. The above structure enables the wheel 4 to be detachably installed and allows the wheel to rotate.

[0049] Preferably, the connecting rods of the fixed external connecting plate 20 are provided with four rods and the outer ends protrude out of the purification pipe. The four No. 2 protrusions are formed by the part of the connecting rods that protrude out of the purification pipe.

[0050] Preferably, there is a gap between the booster blade structure and the rear disc 12, and a gap between the shaft column 19 and the wheel 4. This structure reduces frictional resistance during wheel rotation.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0052] Although this article frequently uses terms such as silencing outer pipe 1, purification pipe 2, pressurization pipe 3, wheel 4, blade 5, smoke exhaust channel 6, perforated plate 7, perforated pipe 8, ventilation pipe 9, adsorption chamber 10, front plate 11, rear plate 12, connecting groove 13, front end slot 14, rear end slot 15, first protrusion 16, second protrusion 17, inner connecting plate 18, shaft column 19, outer connecting plate 20, first connecting short shaft 21, first bearing 22, second connecting short shaft 23, cross-shaped connecting shaft 24, connecting block 25, etc., these terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A detachable multi-functional device for noise reduction, purification, and pressurization, comprising a smoke exhaust pipe, characterized in that, The exhaust pipe is formed by a combination of a detachably connected silencing outer pipe (1), a purification pipe (2), and a pressurizing pipe (3). The silencing outer pipe (1), the purification pipe (2), and the pressurizing pipe (3) are arranged in sequence and are respectively provided with a silencing manifold structure, a purification mechanism, and a pressurizing mechanism. The pressurizing mechanism includes a pressurizing impeller structure, which is located between the exhaust port of the purification pipe (2) and the exhaust port of the pressurizing pipe (3). When the airflow flows from the exhaust port of the purification pipe (2) through the pressurizing impeller structure to the exhaust port of the pressurizing pipe (3), it can drive the pressurizing impeller structure to rotate. The pressurizing impeller structure includes a wheel disc (4). The two ends of the purification pipe (2) are respectively provided with a front disc (11) with an exhaust port and a rear disc (12) with an exhaust port. The silencer manifold structure consists of a perforated plate (7) and a perforated pipe (8) and a ventilation pipe (9) installed axially through the silencer outer pipe (1) on the perforated plate (7). The perforated plate (7) and the silencer outer pipe (1) are sealed together. The perforated pipe (8) is densely covered with through holes connecting the inner and outer sides of the perforated pipe (8). One perforated pipe (8) is provided and located at the axis of the perforated plate (7). Six ventilation pipes (9) are provided and arranged around the perforated pipe (8). The six ventilation pipes (9) include two long pipes, two medium pipes and two short pipes. The long pipes, medium pipes and short pipes have the same diameter and their lengths decrease. The length of the perforated pipe (8) is equal to the length of the long pipes. The openings of the perforated pipe (8) and the six ventilation pipes (9) are flush with the side of the purification pipe (2). It also includes a detachable wheel mounting structure for mounting the wheel (4). The detachable wheel mounting structure includes an inner connecting plate (18) and a shaft (19) disposed in the purification pipe (2) and an outer connecting plate (20) disposed in the booster pipe (3). The inner connecting plate (18) is fixed to the smoke inlet of the front plate (11) by several connecting rods, and the outer connecting plate (20) is fixed to the smoke outlet of the booster pipe (3) by several connecting rods. A first connecting short shaft (21) protrudes from the inner end of the inner connecting plate (18), and the two ends of the shaft (19) are hollow and solid, respectively. At the hollow end, the first connecting short shaft (21) is inserted into the hollow end, and the solid end has a circular groove for installing the first bearing (22). The second connecting short shaft (23) inserted into the first bearing (22) is fixed at the center of the wheel (4). The wheel (4) is also provided with a cross-shaped connecting shaft (24) on the side away from the second connecting short shaft (23). The inner side of the outer connecting plate (20) is provided with a connecting block (25) having a cross groove that matches the cross-shaped connecting shaft (24). The connecting block (25) is rotatably connected to the outer connecting plate (20) through the second bearing.

2. The detachable noise reduction, purification, and pressurization multifunctional device according to claim 1, characterized in that, The wheel (4) is provided with an annular pressure boosting blade structure on the side near the smoke outlet of the purification pipe (2). The smoke outlet of the purification pipe (2) is connected to the center of the pressure boosting blade structure. The smoke outlet of the pressure boosting pipe (3) is connected to the outer side of the pressure boosting blade structure. The smoke exhaust direction of the wheel (4) and the smoke outlet of the purification pipe (2) is perpendicular, and there is a gap between the wheel (4) and the pipe wall of the pressure boosting pipe (3).

3. The detachable noise reduction, purification, and pressurization multifunctional device according to claim 2, characterized in that, The pressurizing blade structure is formed by combining several blades (5) arranged around the wheel (4). The blades (5) are vertically fixed on the wheel (4) and the cross section of the blades (5) is arc-shaped. The concave surfaces of several blades (5) face the same side. A smoke exhaust channel (6) is formed between two adjacent blades (5). The inner and outer sides of the smoke exhaust channel (6) are connected to the smoke outlet of the purification pipe (2) and the smoke outlet of the pressurizing pipe (3), respectively.

4. The detachable noise reduction, purification, and pressurization multifunctional device according to claim 1, characterized in that, The purification mechanism includes an adsorption chamber (10) with activated carbon installed inside the purification tube (2), and the inner diameter of the smoke inlet on the front plate (11) is larger than the inner diameter of the smoke outlet on the rear plate (12).

5. The detachable noise reduction, purification, and pressurization multifunctional device according to claim 1, characterized in that, The silencing outer tube (1) is also provided with a detachable connection structure for connecting the perforated plate (7) and the purification tube (2). The purification tube (2) and the booster tube (3) are screwed together. The detachable connection structure includes four F-shaped grooves on the inner wall of the silencing outer tube (1) near the purification tube (2). The four F-shaped grooves are evenly spaced along the circumference of the silencing outer tube (1). The F-shaped groove includes a connecting groove (13) with a groove inlet on the side near the purification tube (2), and a front end slot (14) and a rear end slot (15) connected to the connecting groove (13) and having an arc-shaped cross section. The outer edge of the perforated plate (7) is provided with four first protrusions (16) corresponding to the front end slot (14) along the circumferential direction, and the outer wall of the purification pipe (2) is provided with four second protrusions (17) corresponding to the rear end slot (15) along the circumferential direction.

6. A detachable noise reduction, purification, and pressurization multifunctional device according to claim 2, characterized in that, There is a gap between the pressurized blade structure and the rear disc (12).

7. The detachable noise reduction, purification, and pressurization multifunctional device according to claim 1, characterized in that, There is a gap between the shaft (19) and the wheel (4).

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