A desktop smoke machine with a wind wall function

Abstract

The utility model discloses a desktop range hood with wind wall function, including the casing, be equipped with the smoke suction passageway in the casing, the front and back both ends of casing are equipped with the suction port and the exhaust port with the intercommunication of smoke suction passageway, still be equipped with the filter device for filtering oil fume on the casing, the wind wall formation device is equipped with in the outer periphery of casing corresponding the rear of suction port, and this device includes side outlet air passageway and the air supply fan of blowing air to side outlet air passageway, and side outlet air passageway with the smoke suction passageway is independent of each other, and the upside of side outlet air passageway is equipped with side outlet, and side outlet with exhaust port is independent of each other, and side outlet blows out the air current and forms the wind wall, and the air supply fan is located in the outside of casing.

Description

Technical Field

[0001] This utility model relates to a desktop range hood, and more particularly to a desktop range hood with a wind wall function. Background Technology

[0002] Chinese Patent Publication No. CN117366639A, published on January 9, 2024, discloses an air outlet structure, a fume extraction device, and a desktop range hood. The air outlet structure includes a guide member disposed near the air outlet, directly facing the air outlet, with a gap between the guide member and the air outlet. The guide member is adapted to block airflow from the front of the air outlet, and the airflow from the air outlet is guided out through the gap between the guide member and the air outlet, forming a side air outlet. This structure allows the range hood to emit side airflow, forming a wind wall to prevent fumes in front of the range hood from escaping behind the wind wall, thereby improving the fume extraction effect. However, because the range hood intake also has a filter, the air pressure and velocity at the exhaust outlet are significantly reduced, resulting in a smaller coverage area of ​​the wind wall, making it easier for fumes to escape. Utility Model Content

[0003] The purpose of this utility model is to provide a desktop range hood with a simple and reasonable structure, side air outlet generated by an independent fan, and effective airflow wall formation.

[0004] The purpose of this utility model is achieved as follows: A desktop range hood with a wind wall function includes a housing with a smoke extraction channel inside. The front and rear ends of the housing are respectively provided with a suction port and an exhaust port communicating with the smoke extraction channel. The housing also has a filter device for filtering oil fumes. A wind wall forming device is provided on the outer periphery of the housing corresponding to the rear of the suction port. This device includes a side air outlet channel and a blower that blows air into the side air outlet channel. The side air outlet channel is independent of the smoke extraction channel. A side air outlet is provided on the side air outlet channel, and the side air outlet is independent of the exhaust port. The airflow blown from the side air outlet forms a wind wall. The blower is located on the outer side of the housing.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the housing is cylindrical, the smoke extraction channel includes an air duct and a smoke extraction fan, the air duct is formed inside the housing in a front-to-back direction, the smoke extraction fan is installed inside the air duct, the front and rear ends of the air duct are the suction port and the exhaust port respectively, the side air outlet is located in front of the exhaust port, and the air supply fan is installed at the bottom of the housing.

[0006] As a further embodiment, the air supply fan and the smoke extraction fan are connected in parallel.

[0007] As a further embodiment, the rear end of the housing is provided with a collar, which together with the housing forms the side air outlet channel. The upper and lower sides of the collar are respectively provided with the side air outlet and the air inlet. The air wall forming device also includes a pipe, in which a blower is installed. One end of the pipe is connected to the side air outlet channel, and the other end of the pipe is connected to the outside.

[0008] As a further embodiment, the inner wall of the exhaust port is tapered, wider at the front end and narrower at the rear end.

[0009] As a further embodiment, the rear end of the housing is provided with a reduced-diameter sleeve, the inner side of which forms the conical exhaust port, and a support plate is also provided on the outer periphery of the reduced-diameter sleeve; the collar includes a wall panel and a rear end ring surface, the center of the rear end ring surface forms a clearance opening, which is opposite to the exhaust port, the inner end of the rear end ring surface abuts against the rear end of the support plate, the front end of the wall panel abuts against the front end of the support plate, and the support plate, the wall panel, and the inner end of the rear end ring surface together form the side air outlet channel; the upper end of the wall panel is provided with a notch, which forms the side air outlet.

[0010] As a further embodiment, the side air outlet is slit-shaped, and the angle between the lines connecting the two ends of the side air outlet to the central axis of the housing is 90 degrees to 180 degrees; the bottom of the housing is also provided with a bracket connection position.

[0011] The front end of the suction port is also provided with a smoke collection hood, and the filter device is provided inside the smoke collection hood. The filter device is a primary filter screen; the filter device is provided outside the exhaust port. The filter device is a main filter element or a main filter screen.

[0012] The main filter element includes a cylindrical filter element or filter screen, and a conical guide shroud is provided inside the filter element or filter screen, with the tip of the conical guide shroud pointing towards the exhaust port.

[0013] The rear end of the housing is also provided with a dust cover, the surface of which has several small holes and covers the main filter element and the blower; the smoke hood or the housing is also provided with an oil drain hole below the primary filter screen, and an oil cup is provided below the oil drain hole of the smoke hood or the housing.

[0014] The casing is cylindrical, and the smoke extraction channel includes an air duct and a smoke extraction fan. The air duct is formed inside the casing in a front-to-back direction. The smoke extraction fan is installed inside the air duct. The front end of the air duct is the suction port, and the rear end of the air duct is the exhaust port. The exhaust port is equipped with a filter device, which is a main filter element. The main filter element filters through its outer circumference. The rear end of the main filter element is equipped with an air wall forming device. The air wall forming device also includes a guide member and a collar. The guide member is frustoconical. The front end of the collar and the guide member form a side air outlet channel, and the rear end of the collar forms an air intake port.

[0015] The beneficial effects of this utility model are as follows: The wind wall forming device of this utility model generates a wind wall powered independently by a blower, which ensures the coverage and wind pressure effect of the wind wall, thereby reducing the escape of oil fumes from a distance and allowing more oil fumes to be further processed after entering the suction channel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the angle structure of the first embodiment of the smoke hood of this utility model.

[0017] Figure 2 for Figure 1 Another structural diagram from a different angle.

[0018] Figure 3 This is an exploded structural diagram of the present invention.

[0019] Figure 4 for Figure 3 Another structural diagram from a different angle.

[0020] Figure 5 This is a cross-sectional structural schematic diagram of the present invention.

[0021] Figure 6 for Figure 5 Schematic diagram of the AA section structure.

[0022] Figure 7 This is a cross-sectional structural diagram of a further embodiment of the first embodiment of the present utility model.

[0023] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: First embodiment, see Figures 1 to 6 As shown, a desktop range hood with a wind wall function includes a housing 1, with a smoke-smoking channel inside the housing 1. The front and rear ends of the housing 1 are respectively provided with a suction port 11 and an exhaust port 15 communicating with the smoke-smoking channel. Filter devices are provided at the suction port 11 and the exhaust port 15. A wind wall forming device 2 is provided on the outer periphery of the housing 1 behind the suction port 11. This device includes a side air outlet 29 and a blower 25 that blows air into the side air outlet 29. The side air outlet 29 is independent of the smoke-smoking channel. A side air outlet 21 is provided on the upper side of the side air outlet 29. The side air outlet 21 is independent of the exhaust port 15. The airflow blown from the side air outlet 21 forms a wind wall. The blower 25 is located on the outer side of the housing 1.

[0025] The side air outlet 21 is slit-shaped, and the angle α between the two ends of the side air outlet 21 and the central axis of the housing 1 is 180 degrees (180 degrees is only a preferred angle at present, but it is not limited to this angle; it can be 90-360 degrees). The bottom of the housing 1 is also provided with a bracket connection position 14.

[0026] The housing 1 is cylindrical. The smoke extraction channel includes an air duct 17 and a smoke extraction fan. The air duct 17, pointing forward and backward, is formed inside the housing 1. The smoke extraction fan is disposed within the air duct 17. The front and rear ends of the air duct 17 are the suction port 11 and the exhaust port 15, respectively. The side air outlet 21 is located in front of the exhaust port 15. The air supply fan is disposed at the bottom of the housing 1. The smoke extraction fan includes an impeller 61 and a motor 62. The impeller 61 and the motor 62 are connected by a drive. A motor frame 12 is provided inside the air duct 17, and the motor 62 is mounted on the motor frame 12. A wire groove 16 is provided on the motor frame 12, which leads to the bracket connection position 14. The bracket connection position 14 is close to the air supply fan 25, facilitating the passage of wires connecting the air supply fan 25 and the smoke extraction fan through the wire groove 16.

[0027] The air supply fan and the smoke extraction fan are connected in parallel; or, the air supply fan and the smoke extraction fan are controlled independently of each other.

[0028] The rear end of the housing 1 is provided with a collar 27, which, together with the housing 1, forms the side air outlet channel 29. The upper and lower sides of the collar 27 are respectively provided with a side air outlet 21 and an air inlet 28. The air wall forming device also includes a pipe 26, in which a blower is installed. One end of the pipe 26 is connected to the air inlet 28 of the side air outlet channel 29, and the other end of the pipe 26 is an air intake 22 connected to the outside. The end of the pipe 26 connected to the air inlet 28 is also provided with a wire hole 23, allowing a wire drawn from the wire trough 16 to pass through the wire hole 23 and electrically connect to the blower 25 inside the pipe 26.

[0029] The inner wall of the exhaust port 15 is tapered, wider at the front end and narrower at the back end.

[0030] The rear end of the housing 1 is provided with a reduced diameter sleeve 13, and the inner side of the reduced diameter sleeve 13 forms the conical exhaust port 15. The outer periphery of the reduced diameter sleeve 13 is also provided with a support plate. The collar 27 includes a wall panel and a rear end ring surface. The center of the rear end ring surface forms a clearance opening, which is opposite to the exhaust port 15. The inner end of the rear end ring surface abuts against the rear end of the support plate, and the front end of the wall panel abuts against the front end of the support plate. The support plate, the wall panel, and the inner end of the rear end ring surface together form the side air outlet channel 29. The upper end of the wall panel is provided with a notch, which forms the side air outlet 21.

[0031] The front end of the suction port 11 is also provided with a smoke collection hood 4, and the smoke collection hood 4 is provided with the filter device, which is a primary filter screen 5.

[0032] The filtration device is provided outside the exhaust port 15, and the filtration device is the main filter element 3 or the main filter screen.

[0033] The main filter element 3 includes a cylindrical filter element or filter screen 31, and a conical guide shroud 32 is provided inside the filter element or filter screen 31. The tip of the conical guide shroud 32 points towards the exhaust port 15. The conical guide shroud 32 can change the direction of the exhaust airflow from horizontal to vertical, thereby contacting and filtering the filter element or filter screen 31.

[0034] Combination Figure 7 As shown, the rear end of the housing 1 is also provided with a dust cover 9. The surface of the dust cover 9 is provided with several small holes and is covered outside the main filter element 3 and the blower. The smoke hood 4 or the housing 1 is also provided with an oil drain hole 41 below the primary filter screen 5. An oil cup 7 is provided below the oil drain hole 41 of the smoke hood 4 or the housing 1.

[0035] The outer casing 1 is also provided with a decorative sleeve 8. The decorative sleeve 8, the oil cup 7, and the dust cover 9 are all in the same shape, so that the front and rear ends of the whole machine are naturally transitioned. The dust cover 9 and the oil cup 7 can be fastened to the front and rear ends of the decorative sleeve 8, or magnetically attached, respectively.

[0036] The second embodiment differs from the first embodiment in that: [participation] Figure 8 As shown, the housing 1 is cylindrical, and the smoke extraction channel includes an air duct 17 and a smoke extraction fan. The air duct 17 is formed inside the housing 1, pointing forward and backward. The smoke extraction fan is installed inside the air duct 17. The front end of the air duct 17 is the suction port 11, and the rear end of the air duct 17 is the exhaust port 15. The exhaust port 15 is equipped with the filter device, which is a main filter element 3. The main filter element 3 filters through its outer periphery. The rear end of the main filter element 3 is equipped with the air wall forming device 2. The air wall forming device 2 also includes a guide member 210 and a collar 27. The guide member is frustoconical. A side air outlet channel 29 is formed between the front end of the collar 27 and the guide member 210. The rear end of the collar 27 forms an air intake port 22.

[0037] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A desktop range hood with a wind wall function, comprising a housing (1), a smoke extraction channel provided inside the housing (1), a suction port (11) and an exhaust port (15) respectively provided at the front and rear ends of the housing (1) communicating with the smoke extraction channel, and a filter device for filtering oil fumes on the housing (1), characterized in that: The outer periphery of the casing (1) is provided with a wind wall forming device (2) behind the suction port (11). The device includes a side air outlet channel (29) and a blower that blows air into the side air outlet channel (29). The side air outlet channel (29) is independent of the smoke extraction channel. A side air outlet (21) is provided on the side air outlet channel (29). The side air outlet (21) is independent of the exhaust port (15). The airflow blown out by the side air outlet (21) forms a wind wall. The blower is located outside the casing (1).

2. The range hood according to claim 1, wherein: The housing (1) is cylindrical. The smoke-smoking channel includes a duct (17) and a smoke-smoking fan. The duct (17) is formed inside the housing (1) in a front-to-back direction. The smoke-smoking fan is installed inside the duct (17). The front and rear ends of the duct (17) are the suction port (11) and the exhaust port (15), respectively. The side air outlet (21) is located in front of the exhaust port (15). The air supply fan is installed at the bottom of the housing (1).

3. The range hood according to claim 2, wherein: The air supply fan and the smoke extraction fan are connected in parallel; or, the air supply fan and the smoke extraction fan are controlled independently of each other.

4. The range hood according to claim 1, wherein: The rear end of the housing (1) is provided with a collar (27), which together with the housing (1) forms the side air outlet channel (29). The upper and lower sides of the collar (27) are respectively provided with the side air outlet (21) and the air inlet (28). The air wall forming device also includes a pipe (26), and a blower is installed inside the pipe (26). One end of the pipe (26) is connected to the side air outlet channel (29), and the other end of the pipe (26) is connected to the outside.

5. The range hood according to claim 4, wherein: The inner wall of the exhaust port (15) is tapered, with a wider front end and a narrower rear end.

6. The range hood according to claim 5, wherein: The rear end of the housing (1) is provided with a reduced diameter sleeve (13), and the inner side of the reduced diameter sleeve (13) forms the cone-shaped exhaust port (15). The outer periphery of the reduced diameter sleeve (13) is also provided with a support plate. The collar (27) includes a wall panel and a rear end ring surface. The center of the rear end ring surface forms a clearance opening, which is opposite to the exhaust port (15). The inner end of the rear end ring surface abuts against the rear end of the support plate, and the front end of the wall panel abuts against the front end of the support plate. The support plate, the wall panel, and the inner end of the rear end ring surface together form the side air outlet channel (29). The upper end of the wall panel is provided with a notch, which forms the side air outlet (21).

7. The under cabinet range hood with wind wall function as claimed in claim 1, wherein: The side air outlet (21) is slit-shaped, and the angle α between the two ends of the side air outlet (21) and the central axis of the housing (1) is 90 degrees to 180 degrees; the bottom of the housing (1) is also provided with a bracket connection position (14).

8. The under cabinet range hood with wind wall function as claimed in claim 1, wherein: The front end of the suction port (11) is also provided with a smoke hood (4), and the smoke hood (4) is provided with the filter device, which is a primary filter screen (5); the exhaust port (15) is provided with the filter device, which is a main filter element (3) or a main filter screen.

9. The range hood according to claim 8, wherein: The rear end of the housing (1) is also provided with a dust cover (9), the surface of the dust cover (9) is provided with several small holes and is covered outside the main filter element (3) and the blower; the smoke hood (4) or the housing (1) is also provided with an oil drain hole (41) below the primary filter screen (5), and an oil cup (7) is provided below the oil drain hole (41) of the smoke hood (4) or the housing (1).

10. The under cabinet range hood with wind wall function as claimed in claim 1, wherein: The housing (1) is cylindrical. The smoke extraction channel includes a duct (17) and a smoke extraction fan. The duct (17) is formed inside the housing (1) in a front-to-back direction. The smoke extraction fan is installed inside the duct (17). The front end of the duct (17) is the suction port (11), and the rear end of the duct (17) is the exhaust port (15). The exhaust port (15) is equipped with the filter device. The filter device is a main filter element (3). The main filter element (3) filters through its outer periphery. The rear end of the main filter element (3) is equipped with the wind wall forming device (2). The wind wall forming device (2) also includes a guide element (210) and a collar (27). The guide element is frustoconical. The front end of the collar (27) and the guide element (210) form a side air outlet channel (29). The rear end of the collar (27) forms an air intake port (22).

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