A side-suction range hood baffle mounting structure

Abstract

A side-suction range hood baffle mounting structure includes a housing with a smoke inlet at the front opening. The baffle covers and connects to the outside of the smoke inlet. The baffle is mounted on the housing via a driving device. The driving device includes a fixed base mounted at the end of the housing and a driving arm mounted on the back of the baffle. A hinge seat extends downward from one side of the fixed base, and a hinge rod extends forward from one end of the driving arm. A mounting seat protrudes from the back of the baffle. The driving device also includes a telescopic rod installed inside the housing, with its end extending out of the housing and connecting to a connecting seat on the back of the baffle, thus opening and closing the baffle. The advantages of this invention are: utilizing an electrically operated opening and closing structure to achieve the opening and closing of the baffle, simplifying transmission components, reducing assembly difficulty, and resulting in a simple structure. The baffle opens and closes more smoothly and steadily under electric drive, improving user comfort and reliability.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically a side-suction range hood guide plate installation structure. Background Technology

[0002] As an essential kitchen appliance, the range hood primarily extracts and removes cooking fumes, maintaining a clean kitchen environment. To improve smoke extraction, the range hood's deflector is designed to open and close. This deflector uses a complex gear transmission system or intricate guide rails for operation, resulting in numerous components. This not only increases the manufacturing difficulty and production cost but also makes assembly more complex, time-consuming, and labor-intensive. Due to its complex structure and numerous inter-component interactions, many electric deflectors do not move smoothly and steadily during operation, easily generating friction noise and gear meshing noise, thus reducing the user experience. The deflector may also vibrate or jam during opening or closing, or even fail to accurately position itself when stopped, affecting the overall aesthetics and user experience. Furthermore, some electric mechanisms are located far from the deflector, leading to low transmission efficiency and resulting in slow opening or closing speeds, failing to respond quickly to user commands. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a side-suction range hood baffle installation structure that is simple in structure, low in manufacturing cost, with smooth and stable movement of the baffle, dual suction ports to improve smoke extraction efficiency, physical protection for the drive device to extend service life, and to ensure long-term stable operation.

[0004] The purpose of this utility model is achieved in the following way: a side-suction range hood guide plate installation structure includes a housing, the front port of which is provided with a smoke inlet, and the guide plate is connected to and covers the outside of the smoke inlet. The guide plate is installed on the housing by a driving device. The driving device includes a fixed seat installed at the end of the housing and a driving arm installed on the back of the guide plate. A hinge seat is provided extending downward from one side of the fixed seat, and a hinge rod is provided extending forward from one end of the driving arm. The hinge rod is hinged to the hinge seat. A mounting seat is provided on the back of the guide plate, and the driving arm is connected to the mounting seat. The driving device also includes a telescopic rod installed inside the housing. The end of the telescopic rod extends out of the housing and is connected to the connecting seat on the back of the guide plate. A drive motor drives the telescopic rod to extend or retract, realizing the opening and closing of the guide plate. Movable slots are provided through both sides of the housing, and the driving arm is movably installed in the movable slots.

[0005] The smoke inlet has a recessed smoke guiding area, and an air inlet is provided at the bottom of the smoke guiding area. An oil filter screen is provided at the air inlet. A secondary suction port is also provided at the top of the smoke guiding area, and the secondary suction port is located near the junction of the guide plate and the shell.

[0006] Two sets of the drive device are provided, symmetrically distributed and installed on both sides of the housing.

[0007] Only one drive unit is provided, which is installed on one side of the housing.

[0008] The drive arm is fan-shaped with an arc transition surface at its outer end; a hinge rod is provided at the end of the drive arm, and a limiting platform is recessed between the hinge rod and the drive arm. When the guide plate is closed, the limiting platform is locked onto the housing.

[0009] The outer end of the telescopic rod is provided with a hinge seat, which is hinged to the connecting seat.

[0010] The drive motor is a geared motor.

[0011] The housing is provided with a surrounding plate, and an oil-separating cavity is formed between the surrounding plate and the housing. The driving device is installed in the oil-separating cavity.

[0012] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0013] 2. The air deflector is opened and closed by an electric opening and closing structure, which simplifies the transmission parts, reduces assembly difficulty, and has a simple structure. The air deflector opens and closes more smoothly and steadily under electric drive, improving the comfort and reliability of user operation.

[0014] 3. The dual smoke inlets enhance smoke collection and extraction efficiency, effectively solving the problem of oil fume diffusion and significantly improving the extraction effect.

[0015] 4. An oil separator is installed to physically protect the drive unit, preventing it from being exposed to oily environments, significantly extending its service life, and ensuring the stability and reliability of the drive unit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the guide plate in the open state of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the guide plate in this utility model.

[0018] Figure 3 This is an exploded view of the structure of the guide plate and the shell in this utility model.

[0019] Figure 4This is a schematic diagram showing the installation position of the drive device in this utility model.

[0020] Figure 5 This is an exploded view of the drive device in this utility model.

[0021] Figure 6 This is an exploded view of the drive arm and hinge seat in this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. A side-suction range hood guide plate mounting structure includes a housing 1. The front port of the housing 1 has an opening for a smoke inlet. A guide plate 2 covers and connects to the outside of the smoke inlet. The guide plate 2 is mounted on the housing 1 via a driving device 3. The driving device 3 includes a fixing seat 31 mounted on the end of the housing 1 and a driving arm 32 mounted on the back of the guide plate 2. A hinge seat 311 extends downward from one side of the fixing seat 31. A hinge rod 321 extends forward from one end of the driving arm 32. The hinge rod 321 connects with... The hinge seat 311 is hinged; the back of the guide plate 2 is provided with a mounting seat 21, and the drive arm 32 is connected to the mounting seat 21; the drive device 3 also includes a telescopic rod 33 installed inside the housing 1, the end of the telescopic rod 33 extends out of the housing 1 and is connected to the connecting seat 22 connected to the back of the guide plate 2, and the drive motor 34 drives the telescopic rod 33 to extend or retract, thereby realizing the opening and closing of the guide plate 2; the housing 1 has a through slot 11 on both sides, and the drive arm 32 is movably installed in the slot 11.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown: In this range hood, a smoke inlet is provided at the front port opening of the housing. A baffle plate is installed on the housing and covers the outside of the smoke inlet by a drive device. The baffle plate can be opened and closed by the drive device.

[0024] When the user needs to open the deflector, the drive motor starts, extending the telescopic rod of the drive unit. The end of the telescopic rod protrudes from the housing and connects to the connecting seat mounted on the back of the deflector. It should be noted that the drive unit includes a fixed seat mounted at the end of the housing and a drive arm mounted on the back of the deflector. One end of the drive arm extends forward and hinges to a hinge seat on one side of the fixed seat, while the other end of the drive arm connects to a mounting seat protruding from the back of the deflector, thus linking the deflector and the drive unit. The thrust of the drive motor on the telescopic rod acts directly on the connecting seat, pushing the deflector through the connecting seat. The deflector swings around the hinge seat as a fulcrum, pushing the deflector outward to achieve electric opening and closing.

[0025] Secondly, movable slots are provided on both sides of the housing. During the opening and closing of the guide plate, the drive arm can be movably inserted into the movable slots to ensure that the opening and closing process of the guide plate is not obstructed. Compared with manual opening and closing or traditional mechanisms with complex structures, this utility model realizes electric opening and closing through a simple motor, telescopic rod and drive arm structure. The structure is compact, the user operation is more labor-saving and the level of intelligence is higher.

[0026] The smoke inlet is provided with a concave smoke guiding area, and an air inlet 41 is provided at the bottom of the smoke guiding area. An oil filter screen 5 is provided at the air inlet 41. A secondary suction port 42 is also provided at the top of the smoke guiding area. The secondary suction port 42 is located near the junction of the guide plate 2 and the housing 1.

[0027] like Figure 2 , Figure 3 As shown: To further enhance smoke extraction, a concave smoke-guiding zone is designed within the smoke extraction port. An air inlet is located at the bottom of this zone, covered by an oil filter. The smoke-guiding zone guides the incoming fumes, which are first drawn in through the air inlet at the bottom and then preliminarily filtered by the oil filter. Simultaneously, a secondary suction port is located at the top of this smoke-guiding zone, near the junction of the baffle plate and the casing. This secondary suction port assists in drawing in escaping fumes, minimizing their escape and significantly improving smoke extraction efficiency and kitchen hygiene. Compared to a traditional single smoke extraction port, this dual-smoke extraction structure (main air inlet and secondary suction port) creates a more efficient and comprehensive fume extraction path, effectively solving the problem of fume diffusion.

[0028] Two sets of the drive device 3 are provided, which are symmetrically distributed and installed on both sides of the housing 1.

[0029] Only one drive device 3 is provided, which is installed on one side of the housing 1.

[0030] Users can select the number of drive units according to their actual needs. When two sets of drive units are installed, symmetrically distributed on the left and right, they work together. When the drive motor starts, the telescopic rods on both sides extend or retract synchronously, simultaneously driving the drive arms on both sides to swing, thus opening and closing the baffle. The symmetrical arrangement of two sets provides a more even pushing and pulling force to the baffle, avoiding uneven force, swaying, or twisting that can occur with single-sided drive, making the opening and closing process of the baffle smoother and more reliable. Furthermore, the dual-drive system can distribute the weight and operating resistance of the baffle, providing more abundant driving force for larger and heavier baffles, ensuring smooth opening and closing and stronger load-bearing capacity. Even if one drive unit fails, the other can still maintain the movement of the baffle to a certain extent, ensuring the normal operation of the range hood.

[0031] When a drive unit is installed on one side of the housing, the extension or retraction of the telescopic rod is driven by the drive motor, which directly drives the entire guide plate to open and close. The other side of the guide plate can maintain the opening and closing balance of the guide plate through appropriate guidance or support. This significantly reduces the number of parts and assembly complexity, lowers manufacturing costs, and is more in line with the pursuit of economy and simplicity. It occupies less space, providing more space for other components. It is suitable for lighter and smaller guide plates, achieving product lightweighting while meeting the basic functional requirements of the range hood.

[0032] The drive arm 32 is fan-shaped with an arc transition surface at its outer end; a hinge rod 321 is provided at the end of the drive arm 32, and a limiting platform 322 is recessed between the hinge rod 321 and the drive arm 32. When the guide plate 2 is closed, the limiting platform 322 is locked onto the housing 1.

[0033] like Figure 6 As shown: The drive arm is fan-shaped, with a wider outer end featuring an arc-shaped transition surface. This surface connects to the movable groove, ensuring smooth and unobstructed opening and closing of the guide plate. At the narrower inner end, the hinge rod recesses with the drive arm body to form a limiting platform. When the guide plate is fully closed, this platform engages with the housing, restricting the guide plate's stroke and defining its mechanical limit. This ensures the guide plate accurately closes to the preset position each time, preventing overtravel or undertravel due to inaccurate stroke control. Furthermore, the fully closed guide plate improves the seal between the housing and the guide plate, preventing oil fumes from escaping and enhancing product safety and reliability.

[0034] The outer end of the telescopic rod 33 is provided with a hinge seat 331, which is hingedly installed with the connecting seat 22. Figure 3 As shown, a hinged seat and a connecting seat are installed on the telescopic rod for hinged installation. During the opening and closing movement of the deflector, the force of the telescopic rod pushing the connecting seat is linear, while the movement trajectory of the hinged seat and the drive arm of the fixed seat is arc-shaped. Through the hinge, the telescopic rod can adapt to the angle changes during the movement of the deflector, avoiding stress concentration that may occur with rigid connections, thereby effectively protecting the telescopic rod and the drive arm and extending the service life of the components. Secondly, the hinge makes the pushing operation of the telescopic rod smoother, further improving the operational stability of the deflector.

[0035] The drive motor 34 is a geared motor. The opening and closing of the guide vane requires a certain driving force. A geared motor is a device that integrates a motor and a reducer. The motor's output shaft is connected to the reducer's input end. Through gear transmission, the high speed of the motor is converted to a lower speed, while significantly increasing the output torque. This allows for stable driving of the telescopic rod, overcoming the weight and motion resistance of the guide vane, ensuring that the guide vane opens and closes more smoothly and powerfully even when encountering resistance. Simultaneously, the low-speed movement makes it easier for users to achieve precise position control of the guide vane. Compared to traditional pure motor control, geared motors maintain lower noise levels during operation, improving the user experience and increasing the energy efficiency of the entire drive system.

[0036] A surrounding plate 6 is provided inside the housing 1, forming an oil-separating cavity between the surrounding plate 6 and the housing 1. The driving device 3 is installed inside this oil-separating cavity. Figure 6 As shown: To protect the drive unit, a surrounding plate is installed inside the housing. This surrounding plate, together with the housing body, forms a relatively sealed oil-separating cavity, within which the drive unit is installed. The oil-separating cavity directly isolates the drive unit from oil fumes and other contaminants, forming an effective physical barrier. This fundamentally solves the problems of oil buildup and corrosion on precision components such as the drive unit, preventing malfunctions such as short circuits and mechanical jamming caused by oil contamination. This significantly extends the service life of the drive unit and even the entire range hood, substantially improving the reliability and stability of the drive unit and ensuring its operation in a clean environment. Furthermore, because the drive unit is effectively protected, users do not need to perform frequent cleaning and maintenance, enhancing user convenience.

[0037] In summary: When the range hood is turned on, the drive unit's reduction motor starts working, driving the telescopic rod to extend slowly and smoothly. Because the outer end of the telescopic rod is hinged to the connecting seat mounted on the back of the baffle plate via its own hinge seat, it ensures that while the telescopic rod moves linearly, it can flexibly adapt to the arc-shaped movement of the drive arm. The extension of the telescopic rod generates a direct thrust on the connecting seat, allowing the drive arm to rotate around the hinge point with the hinge seat. With the combined action of the drive arm and the telescopic rod, the baffle plate slowly moves outward from its closed state until it is fully open. Furthermore, movable slots are provided through both sides of the housing, allowing the drive arm to move freely within these slots during the opening and closing of the baffle plate, ensuring that the opening and closing process is unobstructed.

[0038] Furthermore, a smoke guide zone is set in the smoke inlet, with an air inlet at the bottom and a secondary suction port at the top. The dual suction ports can more effectively draw in any escaping fumes, ensuring that all banquet food in the smoke guide zone is completely removed, thus improving the overall smoke extraction efficiency.

[0039] To protect the drive unit, a surrounding plate is installed inside the housing. This surrounding plate, together with the housing body, forms a relatively sealed oil-separating cavity, within which the drive unit is installed. The oil-separating cavity directly isolates the drive unit from oil fumes and other contaminants, creating an effective physical barrier. This fundamentally solves the problems of oil buildup and corrosion on precision components such as the drive unit, significantly extending the service life of the drive unit and even the entire range hood. It also significantly improves the reliability and stability of the drive unit, ensuring it operates in a clean environment.

[0040] When the range hood is not in use, the drive motor and geared motor rotate in reverse, driving the telescopic rod to retract and moving the guide plate inward along the opposite path until it is completely closed. A mechanical limit is set to restrict the closing of the guide plate, preventing the guide plate from being over-closed or not closed properly. The smoke inlet is also covered, which serves to prevent dust, improve aesthetics, and save space. Therefore, it can be widely used.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A side-suction range hood baffle mounting structure, comprising a housing (1), wherein the front port of the housing (1) is provided with a smoke inlet, and a baffle (2) is covered and connected to the outside of the smoke inlet, the baffle (2) being mounted on the housing (1) by a driving device (3), characterized in that: The drive device (3) includes a fixed base (31) installed at the end of the housing (1) and a drive arm (32) installed on the back of the guide plate (2). A hinge seat (311) is provided extending downward on one side of the fixed base (31), and a hinge rod (321) is provided extending forward at one end of the drive arm (32). The hinge rod (321) is hinged to the hinge seat (311). A mounting base (21) is provided protruding on the back of the guide plate (2), and the drive arm (32) is connected to the mounting base (21). The drive device (3) also includes a telescopic rod (33) installed inside the housing (1). The end of the telescopic rod (33) extends out of the housing (1) and is connected to the connecting seat (22) connected to the back of the guide plate (2). The drive motor (34) drives the telescopic rod (33) to extend or retract, thereby realizing the opening and closing of the guide plate (2). The housing (1) has through slots (11) on both sides, and the drive arm (32) is movably installed in the slots (11).

2. The side-suction range hood baffle installation structure according to claim 1, characterized in that: The smoke inlet is provided with a concave smoke guiding area, and an air inlet (41) is provided at the bottom of the smoke guiding area. An oil filter screen (5) is provided at the air inlet (41). A secondary suction port (42) is also provided at the top of the smoke guiding area. The secondary suction port (42) is located near the junction of the guide plate (2) and the shell (1).

3. The side-suction range hood baffle installation structure according to claim 1, characterized in that: The drive device (3) is provided in two sets, which are symmetrically distributed and installed on both sides of the housing (1).

4. The side-suction range hood baffle installation structure according to claim 1, characterized in that: Only one drive device (3) is provided, which is installed on one side of the housing (1).

5. The side-suction range hood baffle installation structure according to claim 1, characterized in that: The drive arm (32) is fan-shaped, and its outer end is provided with an arc transition surface; The end of the drive arm (32) is provided with a hinge rod (321), and a limiting platform (322) is recessed between the hinge rod (321) and the drive arm (32). When the guide plate (2) is closed, the limiting platform (322) is locked on the housing (1).

6. The side-suction range hood baffle mounting structure according to claim 1, characterized in that: The outer end of the telescopic rod (33) is provided with a hinge seat (331), and the hinge seat (331) is hinged to the connecting seat (22).

7. The side-suction range hood baffle mounting structure according to claim 1, characterized in that: The drive motor (34) is a geared motor.

8. The side-suction range hood baffle mounting structure according to claim 1, characterized in that: The housing (1) is provided with a surrounding plate (6), and an oil-separating cavity is formed between the surrounding plate (6) and the housing (1). The driving device (3) is installed in the oil-separating cavity.

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