Desktop smoke machine with wind wall

Abstract

The utility model discloses a desktop range hood with wind wall, including the casing, be equipped with the smoke suction passageway in the casing, the front and rear both ends of casing are equipped with the suction port and the exhaust port with the intercommunication of smoke suction passageway, be equipped with the filter device for filtering oil fume on the casing, the side air outlet passageway is equipped with in the circumference of casing corresponding the rear of suction port, and the side air outlet passageway is independent with smoke suction passageway, be equipped with the side air outlet on the side air outlet passageway, and the side air outlet is independent with exhaust port, and the side air outlet blows out the air current and forms the wind wall, the casing is set up on the support seat, is equipped with the air -blowing device of the air supply of side air outlet passageway in the support seat, and the air -blowing device is equipped with the air supply fan, the air -blowing fan of the wind force of wind wall in the utility model produces is set up in the support seat, makes the head part volume smaller, can promote the design space of product, and the smoke suction passageway and side air outlet passageway are independent, and the wind wall air current produced by side air outlet passageway is produced by independent air supply fan, and the effect of wind wall preventing oil fume escape is more reliable.

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. 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 an effective airflow wall that can be formed.

[0004] The purpose of this utility model is achieved as follows: A desktop range hood with a wind wall includes a housing with a smoke extraction channel inside. The front and rear ends of the housing have suction inlets and exhaust outlets communicating with the smoke extraction channel, respectively. The housing is equipped with a filter for filtering cooking fumes. A side air outlet channel is located on the outer periphery of the housing, corresponding to the rear of the suction inlet. This side air outlet channel is independent of the smoke extraction channel and has a side air outlet, which is independent of the exhaust outlet. The airflow from the side air outlet forms a wind wall. The housing is mounted on a support base, which contains a blower that supplies air to the side air outlet channel. The blower is equipped with a blower fan.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the blowing device also includes a duct, with a blower installed inside the duct, and one end of the duct connected to the side air outlet channel.

[0006] As a further embodiment, the blower is suspended within the support base, and the support base rotates and / or lifts in coordination with the housing.

[0007] As a further embodiment, the air supply fan is located near the lower part of the support base, and the air supply fan is connected to the pipeline through a nozzle. The end of the nozzle facing the air supply fan is wider, and the end of the nozzle connected to the pipeline is narrower.

[0008] As a further 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 pipe is installed at the bottom of the housing.

[0009] As a further option, 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.

[0010] As a further embodiment, a collar is provided at the rear end of the housing, and the collar and the housing form 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, and the air inlet is connected to the upper end of the pipe.

[0011] As a further embodiment, the inner wall of the exhaust port is tapered, wider at the front end and narrower at the rear end; the outer periphery of the rear end of the housing is provided with a constriction section, the inner side of which forms the tapered exhaust port, and a support plate is also provided on the outer periphery of the constriction section; the collar includes a wall panel and a rear end ring surface, the center of which forms a clearance opening opposite 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 constriction section, and the front end of the constriction section, the wall panel, the inner end of the rear end ring surface, and the support plate 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.

[0012] As a further embodiment, the filtration device includes a main filter element or filter screen, which is disposed outside the exhaust port.

[0013] As a further embodiment, the housing is cylindrical, and the smoke extraction channel includes an air duct and a smoke extraction fan. The air duct, pointing forward and backward, is formed within the housing. The smoke extraction fan is located within the air duct, with the suction port and exhaust port at the front and rear ends of the air duct, respectively. The exhaust port is located on the outer periphery of the rear end of the air duct, and the side air outlet is located behind the exhaust port. The main filter element or screen filters through its outer periphery. The rear end of the main filter element or screen is also provided with a guide element and a collar. The guide element is frustoconical, and the collar has an open end and a closed end at the front and rear ends, respectively. A side air outlet channel is formed between the open end and the guide element. The air supply fan within the support base blows air directly into the collar or through a pipe into the collar.

[0014] The beneficial effects of this utility model are as follows: In this invention, the blower that generates airflow for the air wall is installed inside the support base, making the head part smaller and increasing the design space of the product; the smoke extraction channel and the side air outlet channel are independent of each other, and the airflow generated by the side air outlet channel is generated by an independent blower, making the air wall's function of preventing oil fumes from escaping more reliable. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the first embodiment of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the first embodiment of the present utility model.

[0017] Figure 3 This is a top view of the first embodiment of the present invention.

[0018] Figure 4 for Figure 3 Schematic diagram of the AA section structure.

[0019] Figure 5 This is a schematic diagram of the angle adjustment state structure of the first embodiment of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0021] Figure 7 This is a cross-sectional structural diagram of the second embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of the third embodiment of the present invention.

[0023] Figure 9 This is a cross-sectional structural diagram of the third embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1, see Figures 1 to 5 As shown, a desktop range hood with a wind wall includes a housing 1. The housing 1 has a smoke extraction channel. The front and rear ends of the housing 1 are respectively provided with a suction port 11 and an exhaust port 12 communicating with the smoke extraction channel. Filter devices are provided at the suction port 11, the smoke extraction channel, and the exhaust port 12. A side air outlet channel 23 is provided on the outer periphery of the housing 1 behind the suction port 11. The side air outlet channel 23 is independent of the smoke extraction channel. A side air outlet 21 is provided on the side air outlet channel 23. The side air outlet 21 is independent of the exhaust port 12. The airflow blown out by the side air outlet 21 forms a wind wall. The housing 1 is mounted on a support base 6. The support base 6 is provided with a blower device that supplies air to the side air outlet channel 23. The blower device is equipped with a blower fan 5.

[0025] The blowing device also includes a duct 52, and a blower 5 is disposed inside the duct 52. One end of the duct 52 is connected to the side air outlet channel 23. The blower 5 is located near the lower part of the support base 6. The blower 5 is connected to the duct 52 through a nozzle 51. The nozzle 51 is wider at the end facing the blower 5 and narrower at the end connected to the duct 52. The nozzle 51 helps to compress the airflow blown by the blower 5, so as to blow it to a farther position and increase the air pressure, thereby improving the effect of the air wall in preventing oil fume escape.

[0026] The support base 6 includes a sleeve 63 and a base 62. The sleeve 63 is set on the base 62, and the base is provided with an air inlet 61. When the blower 5 is working, outside air is drawn in through the air inlet 61 and then sent to the side air outlet channel 23 through the nozzle 51 and the pipe 52 in sequence.

[0027] The housing 1 is cylindrical, and the smoke extraction channel includes an air duct 13 and a smoke extraction fan. The air duct 13 is formed inside the housing 1 in a front-to-back direction. The smoke extraction fan is installed inside the air duct 13. The front and rear ends of the air duct 13 are the suction port 11 and the exhaust port 12, respectively. The side air outlet 21 is located in front of the exhaust port 12. The pipe 52 is installed at the bottom of the housing 1.

[0028] The air supply fan 5 is connected in parallel with the smoke extraction fan; or, the air supply fan 5 and the smoke extraction fan are controlled independently of each other.

[0029] The rear end of the housing 1 is provided with a collar 2, which together with the housing 1 forms the side air outlet channel 23. The upper and lower sides of the collar 2 are respectively provided with the side air outlet 21 and the air inlet, and the air inlet is connected to the upper end of the pipe 52.

[0030] The inner wall of the exhaust port 12 is tapered, wider at the front end and narrower at the rear end; the outer periphery of the rear end of the housing 1 is provided with a constriction section, the inner side of which forms the tapered exhaust port 12, and a support plate is also provided on the outer periphery of the constriction section; the collar 2 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 12, 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 constriction section, and the front end of the constriction section, the wall panel, the inner end of the rear end ring surface, and the support plate together form the side air outlet channel 23; the upper end of the wall panel is provided with a notch, which forms the side air outlet 21.

[0031] The blower is suspended within the support base 6. A hinge 22 is located at the bottom of the housing 1 (in this embodiment, the bottom of the collar 2 on the housing 1). The sleeve 63 of the support base 6 is rotatably engaged with the hinge 22. This rotatable engagement can be relatively tight; by forcefully swinging the housing, rotation can be achieved (see...). Figure 5 (As shown by the arrow R in the middle), without applying a swinging force, it can stop under the action of friction.

[0032] The filtration device includes a main filter element 3, which is disposed outside the exhaust port 12. The filtration device includes a primary filter screen 8 and a main filter element 3 or filter screen, which is disposed outside the exhaust port 12; the primary filter screen 8 is disposed directly or through a smoke hood 4 on the suction port 11, the smoke hood 4 is sleeved with the suction port 11, and the primary filter screen 8 is pressed between the smoke hood 4 and the suction port 11.

[0033] The main filter element 3 includes a cylindrical filter element body 31 and a guide cone 32. The front end of the inner cavity of the filter element body 31 is connected to the exhaust port 12, and the guide cone 32 is inserted from the rear end of the filter element body 31, with the front end of the guide cone 32 facing the exhaust port 12. When the airflow from the exhaust port 12 collides with the guide cone 32, the airflow is radially dispersed, thereby flowing evenly towards the inner wall of the filter element body 31. Therefore, the inner circumference of the filter element body 31 in the axial direction plays a filtering role and can evenly contact the airflow discharged from the smoke machine.

[0034] Example 2 differs from Example 1 in that: See [link to example 1] Figure 6 and Figure 7 As shown, the sleeve 63 includes a fixed tube 632 and a movable tube 631 that are telescopically connected to each other. The fixed tube 632 is connected to the base 62, and the upper end of the movable tube 631 is rotatably engaged with the hinge seat 22. Therefore, the casing 1 of the smoke machine can move up and down in the direction of arrow H, and can also swing in the direction of arrow R.

[0035] Example 3 differs from Example 1 in that: See Figure 8 and Figure 9 As shown, the housing 1 is cylindrical, and the smoke extraction channel includes an air duct 13 and a smoke extraction fan. The air duct 13 is formed inside the housing 1 in a front-to-back direction. The smoke extraction fan is installed inside the air duct 13. The front and rear ends of the air duct 13 are the suction port 11 and the exhaust port 12, respectively. The exhaust port 12 is located on the outer periphery of the rear end of the air duct 13, and the side air outlet 21 is located behind the exhaust port 12.

[0036] The main filter element 3 filters through its outer periphery. The rear end of the main filter element 3 is also provided with a flow guide 24 and a collar 2. The flow guide is truncated cone-shaped. The front and rear ends of the collar 2 are open and closed, respectively. A side air outlet channel 23 is formed between the open end and the flow guide 24.

[0037] The air supply fan 5 inside the support 6 blows air directly into the collar 2 or blows air into the collar 2 through the pipe 52.

[0038] 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 draft wall, comprising a housing (1), a smoke extraction channel inside the housing (1), a suction port (11) and an exhaust port (12) communicating with the smoke extraction channel at the front and rear ends of the housing (1), and a filter device for filtering oil fumes on the housing (1), characterized in that: The outer periphery of the housing (1) is provided with a side air outlet channel (23) corresponding to the back of the suction port (11). The side air outlet channel (23) is independent of the smoke extraction channel. The side air outlet channel (23) is provided with a side air outlet (21). The side air outlet (21) is independent of the exhaust port (12). The side air outlet (21) blows out air to form a wind wall. The housing (1) is set on the support base (6). The support base (6) is provided with a blower that blows air to the side air outlet channel (23). The blower is provided with a blower fan (5).

2. The under cabinet range hood of claim 1, wherein: The blowing device also includes a pipe (52), and a blower (5) is installed inside the pipe (52). One end of the pipe (52) is connected to the side air outlet channel (23).

3. The under cabinet range hood of claim 2, wherein: The blower is suspended inside the support base (6), and the support base (6) rotates and / or lifts in coordination with the housing (1).

4. The desktop range hood with a draft wall according to claim 3, characterized in that: The air supply fan (5) is located near the lower part of the support base (6). The air supply fan (5) is connected to the pipe (52) through the nozzle (51). The nozzle (51) is wider at the end facing the air supply fan (5) and narrower at the end connected to the pipe (52).

5. The desktop range hood with a draft wall according to claim 4, characterized in that: The housing (1) is cylindrical. The smoke-smoking channel includes a duct (13) and a smoke-smoking fan. The duct (13) is formed inside the housing (1) in a front-to-back direction. The smoke-smoking fan is installed inside the duct (13). The front and rear ends of the duct (13) are the suction port (11) and the exhaust port (12), respectively. The side air outlet (21) is located in front of the exhaust port (12). The pipe (52) is installed at the bottom of the housing.

6. The desktop range hood with a draft wall according to claim 5, characterized in that: The air supply fan (5) is connected in parallel with the smoke extraction fan; or the air supply fan (5) and the smoke extraction fan are controlled independently of each other.

7. The under cabinet range hood of claim 2, wherein: The rear end of the housing (1) is provided with a collar (2), which together with the housing (1) forms the side air outlet channel (23). The upper and lower sides of the collar (2) are respectively provided with the side air outlet (21) and the air inlet, and the air inlet is connected to the upper end of the pipe (52).

8. The desktop range hood with a draft wall according to claim 7, characterized in that: The inner wall of the exhaust port (12) is tapered, wider at the front end and narrower at the rear end; the outer periphery of the rear end of the housing (1) is provided with a constriction position, and the tapered exhaust port (12) is formed on the inner side of the constriction position. A support plate is also provided on the outer periphery of the constriction position; the collar (2) includes a wall panel and a rear end ring surface. A clearance opening is formed at the center of the rear end ring surface. The clearance opening is opposite to the exhaust port (12). 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 constriction position. The front end of the constriction position, the wall panel, the inner end of the rear end ring surface and the support plate together form the side air outlet channel (23); the upper end of the wall panel is provided with a notch, which forms the side air outlet (21).

9. The under cabinet range hood of claim 1, wherein: The filtration device includes a main filter element (3) or a filter screen, which is disposed outside the exhaust port (12). The filtration device includes a primary filter screen (8) and a main filter element (3) or a filter screen, which is disposed outside the exhaust port (12). The primary filter screen (8) is disposed directly or through a smoke hood (4) on the suction port (11). The smoke hood (4) is sleeved with the suction port (11). The primary filter screen (8) is disposed on the smoke hood (4) or pressed between the smoke hood (4) and the suction port (11).

10. The desktop range hood with a draft wall according to claim 9, characterized in that: The housing (1) is cylindrical, and the smoke-smoking channel includes a duct (13) and a smoke-smoking fan. The duct (13) is formed inside the housing (1) in a front-to-back direction. The smoke-smoking fan is installed inside the duct (13). The front and rear ends of the duct (13) are the suction port (11) and the exhaust port (12), respectively. The exhaust port (12) is located on the outer periphery of the rear end of the duct (13), and the side air outlet (21) is located behind the exhaust port (12). The main filter element (3) or filter screen filters through its outer periphery. The rear end of the main filter element (3) or filter screen is also provided with a guide (24) and a collar (2). The guide is truncated cone-shaped. The front and rear ends of the collar (2) are open and closed, respectively. A side air outlet channel (23) is formed between the open end and the guide (24). The air blower (5) inside the support (6) blows air directly into the collar (2) or through the pipe (52) into the collar (2).

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