A baffle driving mechanism and a range hood

Abstract

The utility model discloses a kind of air deflector driving mechanisms, including underframe;Face frame, between the underframe Forming air inlet;Filter plate, it is located on the air inlet;Overturning mechanism, it includes the support on the underframe, and with the support hinged support arm;Air deflector, with the support arm fixed connection;Electric push rod, it is located on the underframe, and its output end with the support arm hinged;When the output end of the electric push rod retracts, drive the air deflector overturns to cover on the filter plate closed position;When the output end of the electric push rod extends, drive the air deflector overturns and moves to the face frame direction on the filter plate to work position.The utility model also provides range hood.The utility model provides a kind of air deflector driving mechanism, composite motion (overturning plus translation) compared with traditional only rotating air deflector, significantly expand the suction range of oil smoke, improve oil smoke absorption path, to improve the efficiency of smoke exhaust.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a wind deflector drive mechanism and a range hood. Background Technology

[0002] Traditional range hoods typically have fixed air inlets. Later, to increase the range of smoke extraction, range hoods with air deflectors were developed. When the range hood is working, the air deflector opens, guiding the smoke into the air inlet. Its function is to optimize the smoke absorption path and improve exhaust efficiency. Traditional air deflectors are usually fixed or manually adjustable, for example, by using a simple hinge structure to achieve rotation. However, this type of air deflector can only rotate, resulting in poor smoke coverage and guidance effectiveness. Utility Model Content

[0003] To solve the above problems, this technical solution provides a wind deflector driving mechanism.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A wind deflector drive mechanism, comprising

[0006] Base frame;

[0007] The front frame forms an air inlet with the base frame;

[0008] A filter plate is disposed on the air inlet;

[0009] The flipping mechanism includes a bracket mounted on the base frame and a support arm hinged to the bracket;

[0010] An air guide plate, which is fixedly connected to the support arm;

[0011] An electric actuator is mounted on the base frame, and its output end is hinged to the support arm;

[0012] When the output end of the electric push rod retracts, it causes the air guide plate to flip to the closed position covering the filter plate; when the output end of the electric push rod extends, it causes the air guide plate to flip and move away from the filter plate towards the faceplate to the working position.

[0013] As described above, in a guide vane driving mechanism, the support arm is arc-shaped so that when the output end of the electric push rod extends, it drives the guide vane to flip and move away from the filter plate.

[0014] As described above, in a guide vane driving mechanism, the support arm includes a main arm and a secondary arm, and a clearance groove disposed between the two. The main arm is hinged to the bracket, the secondary arm is connected to the guide vane, and the end of the faceplate supports the upper side of the filter plate. When the guide vane is in the working position, the clearance groove makes way for the faceplate so that the guide vane passes over the end of the faceplate along with the secondary arm.

[0015] As described above, in the air guide plate driving mechanism, when the air guide plate is in the working position, the angle between it and the filter plate is 88°±10°.

[0016] As described above, in a wind deflector drive mechanism, the base frame includes an integrally connected top plate, side plate, and bottom plate. The bracket is disposed on the top plate, and a mounting seat is provided on the side plate. The electric push rod is hinged to the mounting seat. When the output end of the electric push rod extends, it swings downward around the mounting seat. When the output end of the electric push rod retracts, it swings upward around the mounting seat.

[0017] As described above, in a guide vane driving mechanism, a connecting piece is provided between the support arm and the guide vane. The connecting piece includes a flat plate portion and a support portion punched out from the flat plate portion. The support portion is perpendicular to the flat plate portion and integrally connected to it. The support arm is connected to the support portion.

[0018] As described above, in a guide vane driving mechanism, the base plate includes an integrally connected horizontal plate portion, a bottom support portion, and an upper limit portion, and the filter plate includes an integrally connected filter portion and a side baffle portion. The bottom support portion is used to abut against the side baffle portion to support the filter plate.

[0019] As described above, in a guide vane driving mechanism, the side baffle is provided with an upward bend, which is hung on the bottom support to restrict the filter plate from moving downward, and the upper limit part abuts against the side baffle to restrict the filter plate from moving upward.

[0020] In the air guide plate driving mechanism described above, a plurality of the upper limit positions are spaced apart, and the upper bend is located between two of the upper limit positions to restrict the left and right movement of the filter plate.

[0021] A range hood, including a wind deflector drive mechanism as described above.

[0022] The beneficial effects of this application are:

[0023] This invention provides a guide vane driving mechanism. Through the cooperation of an electric push rod and a flipping mechanism, the guide vane no longer simply rotates around a filter plate at a fixed point. Instead, driven by the electric push rod, it not only flips but also moves towards the frame, allowing the guide vane to more effectively guide oil fumes into the air inlet when in the working position. This combined motion (flipping and translation) significantly expands the range of oil fume extraction and improves the oil fume absorption path compared to traditional guide vanes that only rotate, thereby enhancing smoke exhaust efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a structural diagram of the air guide plate in its working position;

[0027] Figure 3 This is a schematic diagram of the air guide plate in the closed position. Detailed Implementation

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] A wind deflector drive mechanism, comprising

[0030] Base frame 1;

[0031] The front frame 2 forms an air inlet 3 between itself and the base frame 1;

[0032] Filter plate 4 is disposed on the air inlet 3;

[0033] The flipping mechanism 5 includes a bracket 51 mounted on the base frame 1 and a support arm 52 hinged to the bracket 51.

[0034] The air guide plate 6 is fixedly connected to the support arm 52;

[0035] An electric push rod 7 is mounted on the base frame 1, and its output end is hinged to the support arm 52;

[0036] When the output end of the electric push rod 7 retracts, it causes the air guide plate 6 to flip to the closed position covering the filter plate 4; when the output end of the electric push rod 7 extends, it causes the air guide plate 6 to flip and move away from the filter plate 4 towards the face frame 2 to the working position.

[0037] This invention provides a guide vane driving mechanism. Through the cooperation of an electric push rod and a flipping mechanism, the guide vane no longer simply rotates at a fixed point around the filter plate. Instead, driven by the electric push rod, it not only flips but also moves towards the frame, allowing the guide vane to more effectively guide oil fumes into the air inlet when in the working position. This combined flipping and translation motion, compared to the traditional guide vane that only rotates, significantly expands the range of oil fume extraction, improves the oil fume absorption path, and thus enhances exhaust efficiency.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the support arm 52 is arc-shaped, so that when the output end of the electric push rod 7 extends, it drives the air guide plate 6 to flip while moving away from the filter plate 4. The arc-shaped support arm design directly converts the linear push-pull motion of the electric push rod into a composite motion of air guide plate flipping and translation. This allows the air guide plate to smoothly move away from the filter plate and air inlet during opening, providing a wider channel for oil fumes to enter, avoiding interference with the filter plate or frame, and resulting in a more reasonable movement trajectory.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the support arm 52 includes a main arm 521 and a secondary arm 522, and a clearance groove 523 disposed between them. The main arm 521 is hinged to the bracket 51, and the secondary arm 522 is connected to the air guide plate 6. The end of the face frame 2 supports the upper side of the filter plate 4. When the air guide plate 6 is in the working position, the clearance groove 523 makes way for the face frame 2, so that the air guide plate 6 passes over the end of the face frame 2 along with the secondary arm 522. The structural design of the clearance groove provides physical space for the end of the face frame, allowing the air guide plate and its drive support arm to smoothly "pass over" the face frame when moving to the working position. This solves the interference problem between moving parts and fixed support structures in a compact space, ensuring the smoothness and reliability of the mechanism's operation, while allowing the face frame to effectively support the upper side of the filter plate.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, when the air guide plate 6 is in the working position, the angle between it and the filter plate 4 is 88°±10°. The angle of the air guide plate in the working state is limited to a range that is close to vertical but slightly tilted forward or backward. This angle is optimized to most effectively form a negative pressure zone and guide and converge the rising fumes without affecting the air intake, thereby directly improving the efficiency of fume extraction.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the base frame 1 includes an integrally connected top plate 11, side plate 12, and bottom plate 13. The bracket 51 is disposed on the top plate 11, and a mounting seat 14 is provided on the side plate 12. The electric push rod 7 is hinged to the mounting seat 14. When the output end of the electric push rod 7 extends, it swings downward around the mounting seat 14; when the output end of the electric push rod 7 retracts, it swings upward around the mounting seat 14. The integrally formed base frame structure provides higher overall rigidity and structural stability, ensuring the firmness of the mounting foundation for each component. The electric push rod adopts a swing-type installation with a tail hinge, and its natural swing direction matches the extension and retraction action of the output end. This installation method reduces the torsional stress of the push rod itself, making the operation smoother and extending its service life. At the same time, it reduces the swing range of the electric push rod, reduces its activity space, and reduces the size of the range hood.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation, a connecting piece 8 is provided between the support arm 52 and the air guide plate 6. The connecting piece 8 includes a flat plate portion 81 and a support portion 82 punched out from the flat plate portion 81. The support portion 82 is perpendicular to the flat plate portion 81 and integrally connected to it. The support arm 52 is connected to the support portion 82. The punched and bent connecting piece has a simple structure, is easy to manufacture, and has low cost. Its vertical support portion provides a stable mounting plane for the support arm, enhances the rigidity and connection strength at the connection between the support arm and the air guide plate, and can effectively transmit driving force and prevent deformation under stress.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation, the base plate 13 includes an integrally connected horizontal plate portion 131 with a Z-shaped bend, a bottom support portion 132, and an upper limit portion 133. The filter plate 4 includes an integrally connected filter portion 41 and a side baffle portion 42. The bottom support portion 132 abuts against the side baffle portion 42 to support the filter plate 4. The Z-shaped bend base plate structure supports the filter plate from below through the bottom support portion, achieving stable and reliable bottom support for the filter plate. This structure is integrally formed using sheet metal bending technology, combining good structural strength with low manufacturing cost.

[0044] Furthermore, as a preferred embodiment of this solution and not a limitation, the side baffle 42 is provided with an upward bend 43, which is hooked onto the bottom support 132 to restrict the downward movement of the filter plate 4. The upper limit stop 133 abuts against the side baffle 42 to restrict the upward movement of the filter plate 4. The cooperation of the "upper bend hook" and the "upper limit stop" constitutes a bidirectional locking mechanism for the filter plate in the vertical direction. This ensures that the filter plate will not loosen or fall off due to vibration or airflow impact after installation, ensuring a secure installation while facilitating disassembly and cleaning.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation, multiple upper limit positions 133 are spaced apart, with the upper bend 43 located between two upper limit positions 133 to restrict the left and right movement of the filter plate 4. The spaced upper limit positions not only limit movement in the vertical direction but also naturally constrain the filter plate in the left and right directions. The upper bend is confined between two adjacent upper limit positions, preventing horizontal movement of the filter plate and achieving complete positioning of the filter plate in three-dimensional space, resulting in precise and stable installation.

[0046] Furthermore, as a preferred embodiment of this solution and not a limitation, the filter section 41 and the side baffle section 42 are provided with through grooves 44 that pass through both. The through grooves facilitate the bending of the side baffle section relative to the filter section, while reducing stress concentration and bending resistance caused by bending, and are especially suitable for side baffle sections with large bending spans.

[0047] The range hood includes a guide vane drive mechanism as described above. This range hood possesses the technical effects described above, namely, an automated guide vane drive mechanism with a reasonable movement trajectory, a robust and reliable structure, and the ability to effectively improve the efficiency of fume extraction, thereby comprehensively enhancing the performance, user experience, and reliability of the range hood.

[0048] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A wind deflector driving mechanism, characterized in that: include Base frame (1); The front frame (2) forms an air inlet (3) between itself and the base frame (1); A filter plate (4) is disposed on the air inlet (3); The flipping mechanism (5) includes a bracket (51) mounted on the base frame (1) and a support arm (52) hinged to the bracket (51); The air guide plate (6) is fixedly connected to the support arm (52); An electric push rod (7) is mounted on the base frame (1), and its output end is hinged to the support arm (52); When the output end of the electric push rod (7) retracts, it drives the air guide plate (6) to flip to the closed position covering the filter plate (4); when the output end of the electric push rod (7) extends, it drives the air guide plate (6) to flip and leave the filter plate (4) and move towards the face frame (2) to the working position.

2. The air guide plate driving mechanism according to claim 1, characterized in that: The support arm (52) is arc-shaped so that when the output end of the electric push rod (7) extends out, it drives the air guide plate (6) to flip and move away from the filter plate (4).

3. The air guide plate driving mechanism according to claim 1, characterized in that: The support arm (52) includes a main arm (521) and a secondary arm (522), and a clearance groove (523) between them. The main arm (521) is hinged to the bracket (51), and the secondary arm (522) is connected to the air guide plate (6). The end of the face frame (2) supports the upper side of the filter plate (4). When the air guide plate (6) is in the working position, the clearance groove (523) makes way for the face frame (2) so that the air guide plate (6) passes over the end of the face frame (2) along with the secondary arm (522).

4. The air guide plate driving mechanism according to claim 1, characterized in that: When the air guide plate (6) is in the working position, the angle between it and the filter plate (4) is 88°±10°.

5. The air guide plate driving mechanism according to claim 1, characterized in that: The base frame (1) includes an integrally connected top plate (11), side plate (12) and bottom plate (13). The bracket (51) is provided on the top plate (11). The side plate (12) is provided with a mounting seat (14). The electric push rod (7) is hinged to the mounting seat (14). When the output end of the electric push rod (7) extends, it swings downward around the mounting seat (14). When the output end of the electric push rod (7) retracts, it swings upward around the mounting seat (14).

6. The air guide plate driving mechanism according to claim 5, characterized in that: A connecting piece (8) is provided between the support arm (52) and the air guide plate (6). The connecting piece (8) includes a flat plate (81) and a support part (82) punched out from the flat plate (81). The support part (82) is perpendicular to the flat plate (81) and integrally connected to it. The support arm (52) is connected to the support part (82).

7. The air guide plate driving mechanism according to claim 6, characterized in that: The base plate (13) includes an integrally connected horizontal plate portion (131) and a bottom support portion (132) with a Z-shaped bend, and an upper limit portion (133). The filter plate (4) includes an integrally connected filter portion (41) and a side baffle portion (42). The bottom support portion (132) is used to abut against the side baffle portion (42) to support the filter plate (4).

8. The air guide plate driving mechanism according to claim 7, characterized in that: The side baffle (42) is provided with an upper bend (43), which is hung on the bottom support (132) to restrict the filter plate (4) from moving downward. The upper limit part (133) abuts against the side baffle (42) to restrict the filter plate (4) from moving upward.

9. The air guide plate driving mechanism according to claim 8, characterized in that: Multiple upper limit positions (133) are spaced apart, and the upper bend (43) is located between two upper limit positions (133) to restrict the left and right movement of the filter plate (4).

10. A range hood, characterized in that: Includes a wind deflector drive mechanism as described in any one of claims 1-9.

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