Three-dimensional suction fan

Abstract

The utility model discloses a three-dimensional suction fan. Comprising a draught fan body, a lower air suction panel located below the draught fan body, a lower air duct arranged in the lower air suction panel, a lower air suction opening formed in the lower portion of the lower air suction panel and communicated with the lower air duct, a main air duct located in the draught fan body, an auxiliary air duct arranged on the periphery of the main air duct and a draught fan arranged in the main air duct. An air outlet of the auxiliary air duct communicates with an air inlet of the main air duct, a side air suction opening is formed in the lower portion of the auxiliary air duct, and an upper air suction opening is formed in the upper portion of the auxiliary air duct and located at the highest position of the installation space; exhaust outlets are formed in the top ends of the main air ducts; the fan is reliable in structure and good in use performance, the air suction mode of bottom suction, top suction and side suction is achieved through the arrangement of the main air channel, the auxiliary air channel, the air suction openings in the specific positions of all the air channels and the arrangement of the check valves in all the air channels, the three-dimensional air suction structure and mode are formed, the air suction effect is improved, and indoor pollution gas is rapidly and efficiently exhausted.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to a three-dimensional suction fan. Background Art

[0002] The existing suction fan (range hood) has a suction port only at the bottom, and no suction port at the higher side and / or top. When smoke fills a space, especially a kitchen, smoke smell will be produced in the upper, middle and lower parts of the room. The gas above the suction fan cannot be sucked in. As a result, the gas diffused in the space (kitchen) cannot be eliminated quickly and effectively, and the longer these gases stay, the more pollution they will cause to the ceiling, walls and indoor appliances. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a three-dimensional suction fan.

[0004] The utility model solves the above technical problems with the following technical solutions: A three-dimensional suction fan, comprising a fan body, a lower suction panel located below the fan body, a lower air duct arranged in the lower suction panel, a lower air inlet arranged below the lower suction panel and connected to the lower air duct, a main air duct located in the fan body, an auxiliary air duct arranged adjacent to the main air duct, and a fan arranged in the main air duct;

[0005] The air outlet of the auxiliary air duct is connected with the air inlet of the main air duct. A side air suction port is arranged at the lower part of the auxiliary air duct, an upper air suction port is arranged at the upper part of the auxiliary air duct, and the upper air suction port is located at the highest point of the installation space. An exhaust port is arranged at the top of the main air duct, and the gases entering the lower air duct, the main air duct and the auxiliary air duct respectively are discharged from the exhaust port through the fan.

[0006] Furthermore, an upper check valve is provided at the upper end of the auxiliary air duct, and a side check valve is provided at the lower end of the auxiliary air duct. The upper check valve is located between the upper air suction port and the side air suction port, and the side check valve is located below the side air suction port.

[0007] Furthermore, an auxiliary fan is provided in the auxiliary air duct and at the lower end of the side air suction port, through which the gas inside the auxiliary air duct is collected to the lower air suction panel and discharged from the exhaust port of the main air duct.

[0008] Furthermore, a top suction air duct and a side suction air duct are respectively arranged on the fan body, an upper suction port is arranged on the top suction air duct, and a side suction port is arranged on the side suction air duct, and check valves are respectively arranged in the top suction air duct and the side suction air duct.

[0009] Furthermore, a top suction air duct and a side suction air duct are respectively arranged on the fan body, the top suction air duct is provided with an upper suction port, the side suction air duct is provided with a side suction port, a top suction duct fan is arranged below the top suction air duct, and a side suction duct fan is arranged below the side suction port.

[0010] Furthermore, a lower check valve is provided in the lower air duct.

[0011] Furthermore, an exhaust duct is connected to the exhaust port.

[0012] Furthermore, a main air duct check valve is provided at the air outlet.

[0013] The utility model has the following beneficial effects: the three-dimensional suction fan provided by the utility model has a reliable structure and good performance, and the suction ports at specific positions of the main air duct, the auxiliary air duct and each air duct are arranged, and the check valve or the fan structure is arranged in each air duct to realize the suction form of top suction at the highest point of the installation space, side suction below the highest point of the installation space and bottom suction of the lower suction panel, forming a three-dimensional suction structure, realizing three-dimensional suction of gas in the space, greatly improving the suction effect, and quickly and efficiently discharging indoor polluted gas with reliable effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the second embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the third embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the fourth embodiment of the utility model;

[0018] Figures 1 to 4 The reference numerals shown in the figures represent respectively: 1-fan body, 2-lower air suction panel, 3-lower air duct, 4-lower air suction port, 5-main air duct, 6-auxiliary air duct, 7-fan, 8-side air suction port, 9-upper air suction port, 10-exhaust port, 11-upper check valve, 12-side check valve, 13-top suction air duct, 14-side suction air duct, 15-top suction duct fan, 16-side suction duct fan, 17-lower check valve, 18-main air duct check valve, 19-exhaust duct. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] like Figure 1As shown, embodiment 1: a three-dimensional suction fan includes a fan body 1, a lower suction panel 2 located below the fan body 1, a lower air duct 3 arranged in the lower suction panel 2, a lower suction port 4 arranged below the lower suction panel 2 and connected with the lower air duct 3, a main air duct 5 located in the fan body 1, an auxiliary air duct 6 arranged on the periphery of the main air duct 5, and a fan 7 arranged in the main air duct 5. The fan 7 can be a centrifugal and / or axial flow fan or a gas compression mechanism.

[0021] There are one or more auxiliary air ducts, and the air outlet of the auxiliary air duct 6 is connected to the air inlet of the main air duct 5. The lower part of the auxiliary air duct 6 is provided with a side suction port 8, and the upper part of the auxiliary air duct 6 is provided with an upper suction port 9, and the upper suction port 9 is located at the highest point of the installation space, such as the indoor ceiling, forming a structural form in which the ceiling position is top suction and the area below the ceiling is side suction. An exhaust port 10 is provided at the top of the main air duct 5, and the gas entering the lower air duct 3, the main air duct 5 and the auxiliary air duct 6 respectively is discharged from the exhaust port 10 through the fan 7. The exhaust port 10 is connected to an exhaust duct 19, and a main air duct check valve 18 is provided at the exhaust port 10.

[0022] An upper check valve 11 is provided at the upper end of the auxiliary air duct 6, and a side check valve 12 is provided at the lower end of the auxiliary air duct 6. The upper check valve 11 is located between the upper air inlet 9 and the side air inlet 8, and the side check valve 12 is located below the side air inlet 8. A lower check valve 17 is provided in the lower air duct 3. When the fan 7 in the main air duct 5 rotates, an upward pressure will be formed in the main air duct 5, and a downward pressure will be formed in the auxiliary air duct 6; when the upper check valve 11 and the side check valve 12 are both opened, the wind from the upper air inlet 9 and the side air inlet 8 will enter the main air duct 5 through the auxiliary air duct 6 and be discharged from the exhaust port 10; the wind from the lower air inlet 4 will enter the main air duct 5 from the lower air duct 3 and be discharged from the exhaust port 10. When the upper check valve 11 is closed, the upper air inlet 9 will stop sucking air; when the side check valve 12 is closed, the upper air inlet 9 and the side air inlet 8 will stop sucking air; when the lower check valve 17 is closed, the lower air inlet 4 will stop sucking air. By opening and closing different check valves, a variety of different air suction forms can be formed. According to actual use requirements, the corresponding air suction form can be selected, which greatly improves the use performance.

[0023] like Figure 2 As shown, embodiment 2: the difference between this embodiment and embodiment 1 is that the auxiliary air duct 6 is independently arranged, and the air flow inside is not affected by the fan 7, but is controlled by the auxiliary fan 20; and the auxiliary air duct 6 is one or more, and the upper check valve 11 and the side check valve 12 are cancelled. The fan 7 and the auxiliary fan 20 can be centrifugal and / or axial flow fans or gas compression mechanisms.

[0024] In this embodiment, an auxiliary fan 20 is provided in the auxiliary air duct 6 and at the lower end of the side suction port 8. When the auxiliary fan 20 is working, the wind in the auxiliary air duct 6 will be transmitted downward, and the gas inside the auxiliary air duct 6 will be collected to the lower suction panel 2 through the auxiliary fan 20 and discharged from the exhaust port 10 of the main air duct 5.

[0025] like Figure 3 As shown, the third embodiment is different from the previous two embodiments in that the upper air inlet 9 and the side air inlet 8 are provided with corresponding air ducts in this embodiment, and the suction force of the two air ducts comes from the fan 7. The fan 7 can be a centrifugal and / or axial flow fan or a gas compression mechanism.

[0026] In this embodiment, the fan body 1 is provided with a top suction duct 13 and a side suction duct 14, which are one or more. The top suction duct 13 is provided with an upper suction port 9, and the side suction duct 14 is provided with a side suction port 8. Check valves are provided in the top suction duct 13 and the side suction duct 14, respectively. A lower check valve 17 is provided in the lower air duct 3, and the wind in each air duct is controlled by the corresponding check valve. When working, the fan 7 is started, and the gas is sucked into the corresponding air duct through the suction port. At the same time, the transmission control of the gas in different areas is realized by opening and closing different check valves, and finally discharged from the air outlet of the main air duct 5.

[0027] like Figure 4 As shown, Embodiment 4: The difference between this embodiment and Embodiment 3 is that, in this embodiment, an independent top suction air duct 13 and side suction air duct 14 are provided, and there are one or more top suction air ducts 13 and side suction air ducts 14, and an independent fan 7 is provided in each air duct, and the internal air flow is not affected by the fan 7 and is controlled by the auxiliary fan 20; the design of each check valve is cancelled. The fan 7 and the auxiliary fan 20 can be a centrifugal and / or axial flow fan or gas compression mechanism.

[0028] In this embodiment, the fan body 1 is provided with a top suction duct 13 and a side suction duct 14, the top suction duct 13 is provided with an upper suction port 9, the side suction duct 14 is provided with a side suction port 8, a top suction duct fan 15 is provided below the top suction duct 13, and a side suction duct fan 16 is provided below the side suction port 8. When each duct fan is working, the gas in the top suction duct 13 and the side suction duct 14 will be transmitted downward, collected by the lower suction panel 2, and finally discharged from the exhaust duct 19 through the main duct 5.

[0029] In summary, the utility model provides a three-dimensional suction fan, with the main air duct, the auxiliary air duct, the suction ports at specific positions on each air duct and the check valve or the fan in each air duct, to achieve the suction form of top suction at the highest point of the installation space, side suction below the highest point of the installation space and bottom suction of the lower suction panel, forming a three-dimensional suction structure, achieving three-dimensional suction of gas in the space, greatly improving the suction effect, quickly and efficiently discharging indoor polluted gas, and reliable operation.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional suction fan, characterized in that: The fan comprises a fan body (1), a lower air suction panel (2) located below the fan body (1), a lower air duct (3) arranged above the lower air suction panel (2) and connected to the lower air suction panel (2), a lower air suction port (4) arranged below the lower air suction panel (2) and connected to the lower air duct (3), a main air duct (5) located in the fan body (1), an auxiliary air duct (6) arranged adjacent to the main air duct (5), and a fan (7) arranged in the main air duct (5); The air outlet of the auxiliary air duct (6) is connected to the air inlet of the main air duct (5); a side air inlet (8) is arranged at the lower part of the auxiliary air duct (6); an upper air inlet (9) is arranged at the upper part of the auxiliary air duct (6), and the upper air inlet (9) is located at the highest point of the installation space; an exhaust port (10) is arranged at the top of the main air duct (5); and the gas respectively entering the lower air duct (3), the main air duct (5) and the auxiliary air duct (6) is discharged from the exhaust port (10) through the fan (7).

2. The three-dimensional suction fan according to claim 1, characterized in that: An upper check valve (11) is provided at the upper end of the auxiliary air duct (6), and a side check valve (12) is provided at the lower end of the auxiliary air duct (6); the upper check valve (11) is located between the upper air suction port (9) and the side air suction port (8), and the side check valve (12) is located below the side air suction port (8).

3. The three-dimensional suction fan according to claim 1, characterized in that: An auxiliary fan (20) is provided in the auxiliary air duct (6) and at the lower end of the side air suction port (8). The auxiliary fan (20) collects the gas inside the auxiliary air duct (6) to the lower air suction panel (2) and discharges it from the air outlet (10) of the main air duct (5).

4. The three-dimensional suction fan according to claim 1, characterized in that: The fan body (1) is provided with a top suction duct (13) and a side suction duct (14), respectively; the top suction duct (13) is provided with the upper suction port (9), the side suction duct (14) is provided with the side suction port (8), and check valves are provided in the top suction duct (13) and the side suction duct (14), respectively; and both the top suction duct (13) and the side suction duct (14) are connected to the main air duct (5).

5. The three-dimensional suction fan according to claim 1, characterized in that: The fan body (1) is respectively provided with a top suction duct (13) and a side suction duct (14); the top suction duct (13) is provided with the upper suction port (9); the side suction duct (14) is provided with the side suction port (8); a top suction duct fan (15) is provided below the top suction duct (13); a side suction duct fan (16) is provided below the side suction port (8); the top suction duct (13) and the side suction duct (14) are both connected to the lower suction panel (2).

6. The three-dimensional suction fan according to claim 2 or 4, characterized in that: A lower check valve (17) is arranged in the lower air duct (3).

7. The three-dimensional suction fan according to any one of claims 1 to 5, characterized in that: The exhaust port (10) is connected to an exhaust duct (19).

8. The three-dimensional suction fan according to claim 7, characterized in that: A main air duct check valve (18) is provided at the air outlet (10).

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