Adjustable fan angle multi-outlet range hood

Abstract

The utility model relates to range hood technical field, concretely disclose a kind of adjustable fan angle's multiple air outlet range hood, including fume collecting hood, fan and support, the fume collecting hood has smoke absorption cavity, the bottom of the smoke absorption cavity is provided with air inlet, the fume collecting hood is provided with multiple air outlet communicated with smoke absorption cavity;The fan and support are all arranged in smoke absorption cavity, the fan is fixed on support, the support is rotationally connected with the inner wall of smoke absorption cavity, the fan can be rotated to its air outlet end close to multiple the air outlet.The utility model can adjust the air outlet angle of fan according to air outlet, to adapt the need of air outlet, improve air outlet performance.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a multi-outlet range hood with adjustable fan angle. Background Technology

[0002] Currently, some range hoods are equipped with multiple air vents in different locations to switch between different vents for different usage scenarios. However, the fan inside existing range hoods is fixed inside the hood and its angle cannot be adjusted. This means that the air vents cannot be directed to different locations, resulting in unsatisfactory airflow performance. Utility Model Content

[0003] This utility model provides a multi-outlet range hood with adjustable fan angle, which can adjust the fan's air outlet angle according to the needs of the air outlet to improve air outlet performance.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model provides a multi-outlet range hood with adjustable fan angle, including a smoke collection hood, a fan, and a bracket. The smoke collection hood has a smoke extraction chamber with an air inlet at the bottom and multiple air outlets communicating with the smoke extraction chamber. The fan and the bracket are both disposed in the smoke extraction chamber. The fan is fixed to the bracket, and the bracket is rotatably connected to the inner wall of the smoke extraction chamber. The fan can rotate to position its air outlet end close to the multiple air outlets.

[0006] In some embodiments, a damping rotation structure is fixed to the side wall of the smoking chamber, and a rotating rod is connected to the bracket, the rotating rod being connected to the damping rotation structure.

[0007] In some embodiments, the damping rotation structure includes a damping box, a damping disk, and several spring plates. The damping disk is located inside the damping box and can rotate relative to the damping box. The spring plates are fixed inside the damping box. The rotating rod extends into the damping box and is coaxially connected to the damping disk. The outer peripheral wall of the damping disk is provided with multiple protruding teeth along the circumferential direction, and a groove is formed between two adjacent protruding teeth. The spring plates have locking heads, and the locking heads are inserted into the locking grooves.

[0008] In some embodiments, the inner wall of the damping box is provided with a plurality of limiting blocks, and the spring is secured between two adjacent limiting blocks.

[0009] In some embodiments, the damping box includes a base, a cover plate, and a pressure plate, the cover plate being located between the base and the pressure plate, and the pressure plate being detachably connected to the base to press the cover plate firmly onto the base.

[0010] In some embodiments, the damping box is fixed to the outer wall of the smoking chamber, and the damping rotation structure further includes a knob located outside the damping box. The rotating rod passes through the side wall of the smoking chamber and the damping box and is connected to the knob.

[0011] In some embodiments, the air outlet includes a first air outlet disposed on the top surface of the smoke hood, the first air outlet being located directly above the fan, and a first cover plate being detachably fixed to the smoke hood, the first cover plate covering the first air outlet.

[0012] In some embodiments, the air outlet further includes a second air outlet disposed on the top surface of the smoke hood, the second air outlet being located in front of the first air outlet, and a second cover plate being detachably fixed to the smoke hood, the second cover plate covering the second air outlet.

[0013] In some embodiments, the air outlet includes a third air outlet disposed on the rear side of the smoke collection hood, and a third cover plate is detachably fixed to the smoke collection hood, the third cover plate covering the third air outlet.

[0014] In some embodiments, the air inlet is connected to a guide tube that extends into the smoke chamber.

[0015] In some embodiments, the fan is an axial flow fan, which includes a motor and an impeller connected to the motor, and the motor is fixedly connected to a bracket.

[0016] This utility model has at least the following beneficial effects: The smoke collection hood of this utility model is provided with multiple air outlets communicating with the smoke chamber. The fan is fixed on the bracket, and the bracket is connected to the inner wall of the smoke chamber with damping rotation. When different air outlets are used, the air outlet angle of the fan can be adjusted according to the air outlet. The fan can be rotated so that its air outlet end is close to the corresponding air outlet. The oil fumes adsorbed by the fan can flow more easily to the air outlet to adapt to the needs of the air outlet and improve the air outlet performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention;

[0018] Figure 2 This is a structural schematic diagram of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention, viewed from another perspective.

[0019] Figure 3 This is a cross-sectional schematic diagram of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention.

[0020] Figure 4This is a schematic diagram of the structure of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention, after removing part of the smoke collection hood;

[0021] Figure 5 This is a schematic diagram of the damping rotation structure according to an embodiment of the present invention;

[0022] Figure 6 This is an exploded view of a damped rotation structure according to an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional schematic diagram of a damped rotation structure according to an embodiment of the present invention;

[0024] Figure 8 This is a cross-sectional view of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention, when the first outlet is activated.

[0025] Figure 9 This is a cross-sectional view of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention, when the second air outlet is activated.

[0026] Figure 10 This is a cross-sectional view of a multi-outlet range hood with adjustable fan angle according to an embodiment of the present invention, when the third outlet is activated.

[0027] The attached figures are labeled as follows:

[0028] Smoke hood 100, check valve 101, second air outlet 102, third air outlet 103, smoke chamber 110, air inlet 114, inner cover 120, bottom plate 121, side plate 122, oil mesh 140, guide cylinder 150.

[0029] Fan 200, motor 210, impeller 220;

[0030] Bracket 300, rotating rod 310;

[0031] Damped rotation structure 400, damping box 410, base 411, cover plate 412, pressure plate 413, limit block 414, damping disc 420, tooth 421, spring 430, locking head 431, knob 440. Detailed Implementation

[0032] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0033] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0035] An embodiment of this utility model provides a multi-outlet range hood with adjustable fan angle, such as... Figure 1-4 As shown, the system includes a fume hood 100, a fan 200, and a support 300. The fume hood 100 has a fume extraction chamber 110, and an air inlet 114 is provided at the bottom of the fume extraction chamber 110, which communicates with the fume extraction chamber 110. Oil fumes enter the fume extraction chamber 110 through the air inlet 114. The fume hood 100 has multiple air outlets communicating with the fume extraction chamber 110, and the oil fumes entering the fume extraction chamber 110 are discharged through the air outlets. Both the fan 200 and the bracket 300 are installed in the smoke extraction chamber 110. The fan 200 is fixed to the bracket 300, thus the fan 200 will be linked with the bracket 300. The bracket 300 is damped and rotatably connected to the inner wall of the smoke extraction chamber 110. When the bracket 300 rotates relative to the inner wall of the smoke extraction chamber 110, the fan 200 can also rotate relative to the inner wall of the smoke extraction chamber 110. Due to the damped rotation, after rotating to the target position, the bracket 300 will not automatically reset under gravity due to the damping force, thus the fan 200 can maintain its rotation angle. For multiple air outlets, the fan 200 can rotate so that its air outlet end is close to multiple air outlets. When different air outlets are used, the air outlet angle of the fan 200 can be adjusted according to the air outlet. The fan 200 can rotate so that its air outlet end is close to the corresponding air outlet, making it easier for the oil fumes adsorbed by the fan 200 to flow to the corresponding air outlet, thus adapting to the needs of the air outlet and improving the air output performance.

[0036] In some embodiments, such as Figure 3-7As shown, a damping rotation structure 400 is fixed to the side wall of the smoking chamber 110, and a rotating rod 310 is connected to the bracket 300. The rotating rod 310 is connected to the damping rotation structure 400. The rotating rod 310 is damped and rotatedly connected to the inner wall of the smoking chamber 110 through the damping rotation structure 400. The damping rotation structure 400 can be set on the inner side wall of the smoking chamber 110 or on the outer side wall of the smoking chamber 110. When the damping rotation structure 400 is set on the outer side wall of the smoking chamber 110, the rotating rod 310 needs to pass through the side wall of the smoking chamber 110 and can rotate relative to the side wall of the smoking chamber 110.

[0037] In this embodiment, the bracket 300 may be connected to the damping rotation structure 400 at only one end, or one end of the bracket 300 may be connected to the damping rotation structure 400 and the other end may be rotatably connected to the side wall of the smoking chamber 110, or two damping rotation structures 400 may be provided, with the two ends of the bracket 300 respectively connected to the two damping rotation structures 400.

[0038] Furthermore, the damping rotation structure 400 includes a damping box 410, a damping disc 420, and several spring pieces 430. The damping disc 420 is located inside the damping box 410 and can rotate relative to the damping box 410. The spring pieces 430 are fixed inside the damping box 410. The rotating rod 310 extends into the damping box 410 and is coaxially connected to the damping disc 420. When the rotating rod 310 rotates, the damping disc 420 rotates coaxially. The outer peripheral wall of the damping disc 420 is provided with multiple protruding teeth 421 along the circumferential direction. A groove is formed between two adjacent protruding teeth 421. The spring piece 430 has a locking head 431, which is inserted into the locking groove.

[0039] When the user forcefully rotates the bracket 300 or the rotating rod 310, the spring 430 deforms under the pressure, causing the clip 431 to disengage from its original slot. The damping disc 420 can then rotate relative to the spring 430. When the rotating rod 310 rotates to the ideal position, the clip 431 can be inserted into the new slot. Under its own weight, the clip 431 is difficult to disengage from the slot. The rotating rod 310 can maintain its rotation angle, and the fan 200 can also maintain its air outlet angle, thereby achieving a damped rotational connection between the bracket 300 and the inner wall of the smoke chamber 110.

[0040] In some embodiments, such as Figure 3-7 As shown, the inner wall of the damping box 410 is provided with multiple limiting blocks 414. The spring piece 430 is fixed between two adjacent limiting blocks 414. The limiting blocks 414 limit the position of the spring piece 430 so that it will not rotate with the damping disc 420 relative to the damping box 410, thereby maintaining its position and ensuring the damped rotational connection between the bracket 300 and the inner wall of the smoking chamber 110.

[0041] In some embodiments, such as Figure 3-7As shown, the damping box 410 includes a base 411, a cover plate 412 and a pressure plate 413. The cover plate 412 is located between the base 411 and the pressure plate 413. The pressure plate 413 is detachably connected to the base 411 to press the cover plate 412 tightly onto the base 411.

[0042] When the cover plate 412 is pressed tightly against the base 411, the cover plate 412 and the base 411 together form the cavity inside the damping box 410, in which the damping disc 420 and the spring plate 430 are disposed. After the pressure plate 413 is removed from the base 411, the cover plate 412 can be opened to expose the cavity, so as to facilitate the assembly of the damping disc 420 and the spring plate 430.

[0043] In this embodiment, the pressure plate 413 can be detachably connected to the base 411 by means of screw fixing, snap-fit ​​connection or other methods.

[0044] In some embodiments, such as Figure 3-7 As shown, the damping box 410 is fixed to the outer wall of the smoking chamber 110. The damping rotation structure 400 also includes a knob 440 located outside the damping box 410. The rotating rod 310 passes through the side wall of the smoking chamber 110 and the damping box 410 and is connected to the knob 440.

[0045] Since the damping rotation structure 400 is located on the outer wall of the smoke chamber 110, it is easier for the user to access. The rotation rod 310 is connected to the knob 440. The user can rotate the rotation rod 310 by rotating the knob 440, thereby adjusting the air outlet angle of the fan 200. This makes the operation easier for the user.

[0046] In some embodiments, such as Figure 2 and Figure 8 As shown, the air outlet includes a first air outlet located on the top surface of the smoke hood 100. The first air outlet is located directly above the fan 200. A first cover plate is detachably fixed on the smoke hood 100, and the first cover plate covers the first air outlet.

[0047] When the first cover is open, the first air outlet is exposed, and the fumes inside the smoke extraction chamber 110 can be discharged through the first air outlet. The first air outlet can be connected to a smoke exhaust pipe or a backflow preventer 101, which can prevent backflow of fumes. When the first cover is closed, it can prevent external impurities from falling into the smoke extraction chamber 110 and also create conditions for smoke exhaust from other air outlets.

[0048] Furthermore, such as Figure 2 and Figure 9 As shown, the air outlet also includes a second air outlet 102 disposed on the top surface of the smoke hood 100. The second air outlet 102 is located in front of the first air outlet. A second cover plate is detachably fixed on the smoke hood 100, and the second cover plate covers the second air outlet 102.

[0049] When the second cover is open, the second air outlet 102 is exposed, and the fumes in the smoke extraction chamber 110 can be discharged through the second air outlet 102. When the second cover is closed, it can prevent external impurities from falling into the smoke extraction chamber 110 and also create conditions for smoke to be discharged from other air outlets.

[0050] This embodiment increases the number of air outlets, and the positions of the first air outlet and the second air outlet 102 are different, so that different air outlets can be activated according to different smoke exhaust needs of users, making it convenient for users to use.

[0051] In some embodiments, such as Figure 2 and Figure 10 As shown, the air outlet includes a third air outlet 103 located on the rear side of the smoke hood 100. A third cover plate is detachably fixed to the smoke hood 100, and the third cover plate covers the third air outlet 103.

[0052] When the third cover is open, the third air outlet 103 is exposed, and the fumes in the smoke extraction chamber 110 can be discharged through the third air outlet 103. When the third cover is closed, it can prevent external impurities from falling into the smoke extraction chamber 110 and also create conditions for other air outlets to exhaust smoke.

[0053] This embodiment further increases the number of air outlets, and the positions of the first air outlet, the second air outlet 102, and the third air outlet 103 are all different, so different air outlets can be activated according to different smoke exhaust needs of users, making it convenient for users to use.

[0054] In the above embodiments, the first cover plate, the second cover plate, and the third cover plate can be detachably fixed to the smoke collection hood 100 by means of screws or other methods.

[0055] In some embodiments, such as Figure 1 and Figure 3 As shown, the bottom opening of the smoke hood 100 forms a hood-like structure with a concave bottom. An inner cover 120 is provided inside the smoke hood 100, and the inner cover 120 and the smoke hood 100 enclose a smoke chamber 110, with the air inlet located at the bottom of the inner cover 120.

[0056] In this embodiment, the smoke extraction chamber 110 is formed by the inner cover 120 and the smoke collection hood 100. Different smoke extraction chambers 110 can be formed by different inner covers 120, so as to flexibly control the volume of the smoke extraction chamber 110, making the entire range hood smaller and meeting the needs of users for different specifications of products.

[0057] In this embodiment, the inner cover 120 may include a base plate 121 and two side plates 122. The two side plates 122 are respectively connected to both ends of the base plate 121 along its length. The base plate 121, the two side plates 122, and the smoke hood 100 enclose a smoke chamber 110. An air inlet is correspondingly provided on the base plate 121.

[0058] In some embodiments, such as Figure 3 and Figure 4 As shown, the air inlet 114 is connected to a guide tube 150, which extends into the smoke extraction chamber 110. This guide tube 150 can guide the fumes to flow along the guide tube 150 into the smoke extraction chamber 110, avoiding airflow turbulence, and allowing the fumes to enter the smoke extraction chamber 110 smoothly.

[0059] Furthermore, the axial direction of the fan 200 can be coaxial with the axial direction of the guide cylinder 150, making it easier for the fumes to enter the smoke chamber 110 along the guide cylinder 150.

[0060] In some embodiments, such as Figure 3 As shown, the fan 200 can be an axial flow fan, which includes a motor 210 and an impeller 220 connected to the motor 210. A connecting rod 230 is provided in the smoke chamber 110, and the two ends of the connecting rod 230 are respectively connected to the two side walls of the smoke chamber 110. The motor 210 is fixedly connected to the rotating rod 310.

[0061] In some embodiments, such as Figure 1 As shown, an oil mesh 140 is also fixed at the bottom of the smoke chamber. The oil mesh 140 covers the air inlet and can intercept grease, reducing the amount of grease entering the smoke chamber 110.

[0062] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A multi-outlet range hood with adjustable fan angle, characterized in that: The device includes a smoke hood, a fan, and a support frame. The smoke hood has a smoke chamber with an air inlet at the bottom and multiple air outlets communicating with the smoke chamber. The fan and the support frame are both located in the smoke chamber. The fan is fixed to the support frame, which is rotatably connected to the inner wall of the smoke chamber. The fan can rotate to position its outlet end close to the multiple air outlets.

2. The multi-outlet range hood with adjustable fan angle according to claim 1, characterized in that: The side wall of the smoking chamber is fixed with a damping rotation structure, and the bracket is connected with a rotating rod, which is connected to the damping rotation structure.

3. The multi-outlet range hood with adjustable fan angle according to claim 2, characterized in that: The damping rotation structure includes a damping box, a damping disc, and several spring plates. The damping disc is located inside the damping box and can rotate relative to the damping box. The spring plates are fixed inside the damping box. The rotating rod extends into the damping box and is coaxially connected to the damping disc. The outer peripheral wall of the damping disc is provided with multiple protruding teeth along the circumferential direction, and a groove is formed between two adjacent protruding teeth. The spring plates have locking heads, which are inserted into the locking grooves.

4. The multi-outlet range hood with adjustable fan angle according to claim 3, characterized in that: The inner wall of the damping box is provided with multiple limiting blocks, and the spring piece is secured between two adjacent limiting blocks.

5. The multi-outlet range hood with adjustable fan angle according to claim 3, characterized in that: The damping box includes a base, a cover plate, and a pressure plate. The cover plate is located between the base and the pressure plate, and the pressure plate is detachably connected to the base to press the cover plate tightly onto the base.

6. The multi-outlet range hood with adjustable fan angle according to claim 3, characterized in that: The damping box is fixed to the outer wall of the smoking chamber. The damping rotation structure also includes a knob located outside the damping box. The rotating rod passes through the side wall of the smoking chamber and the damping box and is connected to the knob.

7. The multi-outlet range hood with adjustable fan angle according to any one of claims 1-6, characterized in that: The air outlet includes a first air outlet disposed on the top surface of the smoke collection hood, the first air outlet being located directly above the fan, and a first cover plate being detachably fixed to the smoke collection hood, the first cover plate covering the first air outlet.

8. The multi-outlet range hood with adjustable fan angle according to claim 7, characterized in that: The air outlet also includes a second air outlet disposed on the top surface of the smoke collection hood. The second air outlet is located in front of the first air outlet. A second cover plate is detachably fixed on the smoke collection hood, and the second cover plate covers the second air outlet.

9. The multi-outlet range hood with adjustable fan angle according to any one of claims 1-6, characterized in that: The air outlet includes a third air outlet located on the rear side of the smoke collection hood. A third cover plate is detachably fixed to the smoke collection hood, and the third cover plate covers the third air outlet.

10. The multi-outlet range hood with adjustable fan angle according to any one of claims 1-6, characterized in that: The air inlet is connected to a guide tube, which extends into the smoke chamber.

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