Guiding device of kitchen range hood

Abstract

The invention relates to a guiding device, in particular to a guiding device of a kitchen range hood. The problems that in the prior art, a large amount of space is occupied while devices are additionally arranged, and meanwhile the smoke gathering effect cannot be remarkably improved after a smoke gathering cover is additionally arranged to a certain degree are solved. The range hood comprises an oil smoke filter screen, a smoke gathering plate and a flow guide plate assembly, the smoke gathering plate is installed in front of the range hood, the oil smoke filter screen is installed at a smoke inlet of the range hood, and the flow guide plate assembly is installed in a lower flow channel in the range hood. The invention belongs to the technical field of indoor environment and pollution control.

Description

Technical Field

[0001] The invention relates to a flow guiding device, belonging to the technical field of indoor environment and pollution control. Background Art

[0002] The kitchen is an important place in people's daily life, and the range hood is widely used as the core equipment for removing kitchen fumes. The high temperature, high humidity and high pollutant emission characteristics of the cooking process make the conventional range hoods have poor collection effect on kitchen fumes, which has a serious impact on the health of cooks. Therefore, how to improve the collection effect of range hoods and develop a new type of smoke collection device is of great significance.

[0003] Most existing smoke collection devices mainly include lifting mechanisms, smoke collection components, and smoke collection hoods of different shapes. The lifting mechanism changes the area of ​​the upper and lower air inlet channels of the range hood to quickly absorb the oil smoke from the lower air inlet channel to reduce the escape of oil smoke, but the lift mechanism has poor adjustability. If it is improperly adjusted, it will aggravate the escape of oil smoke; the smoke collection component guides the rising oil smoke to the air inlet of the range hood by designing a guide plate with a certain angle. However, the external smoke collection plate has a large difference in guiding the oil smoke, and it is very easy to touch the head of the person, and the ergonomic design is poor. The smoke collection hood achieves the effect of collecting smoke by forming a constant negative pressure in the flow channel. The deeper the smoke collection hood, the larger the smoke collection area and the better the smoke collection effect. However, as the volume of the smoke collection hood increases, there will also be problems such as too large negative pressure area, reduced inlet flow rate, and increased occupied space. These smoke collection devices all have contradictions such as large occupied space, poor adjustability, and poor maintainability.

[0004] The utility model patent with publication number CN220229314U discloses a smoke collecting device and a range hood, which realizes the selective opening and exposure of the oil fume inlet by lifting and lowering the lifting shell, which can improve the smoke collecting effect of the smoke collecting device, improve the use flexibility of the range hood, and improve the oil fume suction capacity of the range hood.

[0005] The utility model patent with publication number CN212029670U discloses a smoke absorption and blocking device, which includes a strip-shaped smoke blocking belt, the inner surface of which is provided with flame-retardant carbon fiber, and the smoke absorption and blocking device also includes a connection structure connecting the range hood and the smoke blocking belt, and after the smoke blocking belt is connected to the range hood, the lower edge of the smoke blocking belt can extend to the lower side of the range hood housing. The device can effectively reduce the escape of oil smoke.

[0006] The invention patent with publication number CN104864433A discloses a smoke collecting hood, in which the two side panels of the hood body can be rotated 90 degrees at will. The cook can rotate the side panels at any time without affecting the cook's operating space. The upper panel rotates with the side panels to block the oil smoke from overflowing from the upper side at any angle. Therefore, the side panel and the upper panel can effectively guide the oil smoke and prevent the oil smoke from overflowing, thereby effectively improving the exhaust effect of the oil smoke.

[0007] The invention patent with the publication number CN109855125A discloses a smoke-proof range hood, which is riveted into a frame structure to fix the glass, forming a closed effect to prevent the spread of oil smoke. The top is hollowed out for the oil smoke exhaust pipe and other components. The front side glass is partially hollowed out and reserved for users. At the same time, it serves as the only air inlet. The airflow enters from the outside and is discharged from the air outlet, keeping the oil smoke away from consumers; the bottom sealing ring forms a closed protective layer, which not only prevents the spread of oil smoke, but also protects the glass from damage.

[0008] From the above analysis, it can be seen that adding lifting mechanisms, smoke collection components, smoke hoods of different shapes and other structures are the main ways to improve the smoke collection effect of range hoods. However, the above technologies also take up more space while adding devices. At the same time, after the number of smoke hoods is increased to a certain extent, the smoke collection effect cannot be significantly improved. Summary of the invention

[0009] The present invention aims to solve the problem that the prior art occupies a large amount of space while adding devices, and the smoke collection effect cannot be significantly improved after the smoke collection hoods are added to a certain extent, and further proposes a kitchen range hood guide device.

[0010] The technical solution adopted by the present invention to solve the above problems is: the present invention comprises an oil fume filter, a smoke collecting plate and a guide plate assembly;

[0011] The smoke collecting plate is installed in front of the range hood, the oil smoke filter is installed at the smoke inlet of the range hood, and the guide plate assembly is installed in the lower flow channel inside the range hood.

[0012] Further, the guide plate assembly includes a first guide plate, a second guide plate and a third guide plate;

[0013] The first guide plate, the second guide plate and the third guide plate are sequentially arranged in the lower flow channel inside the range hood from top to bottom.

[0014] Furthermore, the first guide plate is tilted in the lower flow channel inside the range hood, and the upper end of the first guide plate is tilted toward the front of the range hood, and the inclination angle is 30° to 50°; the second guide plate and the third guide plate are both vertically arranged in the lower flow channel inside the range hood.

[0015] Furthermore, a slit is left between the lower internal flow channel of the range hood and the third guide plate, and the width of the slit is 15mm to 20mm; a slit is left between the first guide plate and the second guide plate, and the width of the slit is 5mm to 10mm; a slit is left between the second guide plate and the third guide plate, and the width of the slit is 5mm to 10mm; a slit is left between the upper internal flow channel of the range hood and the first guide plate, and the width of the slit is 30mm to 50mm.

[0016] Furthermore, the first guide plate, the second guide plate and the third guide plate can be detachably installed in the lower flow channel inside the range hood by means of snap-fitting and slot-fitting.

[0017] Furthermore, two-stage heating modules are installed on the first guide plate, the second guide plate and the third guide plate.

[0018] Furthermore, the third guide plate is a mesh structure.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention designs a mesh structure guide plate, which promotes the gathering and discharge of oil fume particles by forming multiple local vortices in the flow channel, thereby improving the smoke collection effect of the range hood. The modular design is conducive to the installation and cleaning of the guide plate. At the same time, the internal guide plate will not affect the operation of personnel, conforming to the ergonomic design, and reducing the cost of the device. The two-speed adjustable heating device is personalized for different working conditions, which improves the convenience of personnel operation;

[0021] 2. The present invention provides a guide plate with a mesh structure in the flow channel inside the range hood. When the oil smoke passes through the mesh structure in the flow channel, a local vortex is generated inside the flow channel, thereby strengthening the entrainment of pollutants and improving the smoke collection effect of the range hood.

[0022] 3. The present invention adds a two-speed adjustable heating module on the guide plate, which generates a chimney effect by heating the airflow in the flow channel at low temperature to form a density difference between the inside and outside air, further improving the entrainment effect. At the same time, the high-temperature heating mode can also dissolve the oil stains on the plate wall, making it easier for personnel to clean.

[0023] 4. The guide plate structure of the present invention adopts a modular design, which is easy to install, adjust and clean. At the same time, the front smoke collecting plate can be adjusted to meet ergonomic design while reducing device costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the cross section of the range hood;

[0025] Figure 2 It is a schematic diagram of the cross section principle of the range hood;

[0026] Figure 3 is a schematic structural diagram of a first guide plate;

[0027] Figure 4 is a schematic structural diagram of a second guide plate;

[0028] Figure 5 is a schematic structural diagram of the third guide plate;

[0029] Figure 6 It is a schematic diagram of the mechanism of the range hood;

[0030] Figure 7 It is a structural diagram of the mounting base;

[0031] Figure 8 is a structural schematic diagram of a first sliding hinge;

[0032] Fig. 9 It is a structural diagram of the slider mechanism;

[0033] Figures 1 to 6 In the figure, 1-inner lower flow channel, 2-oil smoke filter, 3-smoke collecting plate, 4-first guide plate, 5-second guide plate, 6-third guide plate, 7-upper flow channel, 8-smoke duct, 9-first sliding hinge, 10-second sliding hinge, 11-fixed part, 12-sliding part, 13-connecting rod, 14-fixed part. DETAILED DESCRIPTION

[0034] Specific implementation method 1: Figures 1 to 6 As shown, a kitchen range hood guide device comprises a fume filter 2, a fume collecting plate 3 and a guide plate assembly;

[0035] The smoke collecting plate 3 is installed in front of the range hood, the smoke filter 2 is installed at the smoke inlet of the range hood, and the guide plate assembly is installed in the lower flow channel 1 inside the range hood.

[0036] Specific implementation method 2: Figures 1 to 6 As shown, the guide plate assembly includes a first guide plate 4, a second guide plate 5 and a third guide plate 6;

[0037] The first guide plate 4, the second guide plate 5 and the third guide plate 6 are sequentially arranged from top to bottom in the lower flow channel 1 inside the range hood.

[0038] Specific implementation method three: Figures 1 to 6 As shown, the first guide plate 4 is tilted in the lower flow channel 1 inside the range hood, and the upper end of the first guide plate 4 is tilted toward the front of the range hood, and the tilt angle is 30° to 50°; the second guide plate 5 and the third guide plate 6 are both vertically arranged in the lower flow channel 1 inside the range hood.

[0039] Specific implementation method four: Figures 1 to 6 As shown, a slit is left between the lower flow channel 1 inside the range hood and the third guide plate 6, the width of which is 15mm to 20mm, a slit is left between the first guide plate 4 and the second guide plate 5, the width of which is 5mm to 10mm, a slit is left between the second guide plate 5 and the third guide plate 6, the width of which is 5mm to 10mm, and a slit is left between the upper flow channel 7 inside the range hood and the first guide plate 4, the width of which is 30mm to 50mm.

[0040] Specific implementation method five: Figures 1 to 6 As shown, the first guide plate 4, the second guide plate 5 and the third guide plate 6 are all detachably installed in the lower flow channel 1 inside the range hood by means of snap-fitting and slot-fitting.

[0041] Specific implementation method six: Figures 1 to 6 As shown, two-stage heating modules are installed on the first guide plate 4, the second guide plate 5 and the third guide plate 6.

[0042] Specific implementation method seven: Figures 1 to 6 As shown, the third guide plate 6 is a mesh structure.

[0043] Specific implementation method eight: Figures 7 to 9 As shown, three mounting seats are also included. The first guide plate 4, the second guide plate 5 and the third guide plate 6 are all equipped with mounting seats. The mounting seats are composed of a first sliding hinge 9, a second sliding hinge 10 and a fixing member 11. The fixing member 11 is connected to the second sliding hinge 10, and the second sliding hinge 10 is slidably connected to the first sliding hinge 9.

[0044] Among them, both sides of the third guide plate 6 are provided with mounting seats, and the built-in smoke recognition module is used to adjust the width of the flow channel below according to the intensity of the smoke, so as to effectively absorb the kitchen smoke;

[0045] The angle of the smoke collecting plate 3 is adjusted by a built-in connected slider mechanism. The slider mechanism has a built-in smoke recognition module. By identifying the intensity of the oil smoke, the control mechanism moves and the angle of the smoke collecting plate 3 is reasonably adjusted.

[0046] In the internal flow channel 1 of the range hood, the third guide plate 6 is equipped with a first sliding hinge 9 and a second sliding hinge 10 on both sides. The first sliding hinge 9 and the second sliding hinge 10 work together with the built-in smoke recognition module to realize intelligent and precise control of the width of the lower flow channel, thereby achieving the excellent effect of efficiently absorbing kitchen fumes. When cooking begins, the smoke recognition module keenly senses the slight changes in the intensity of the fumes, and instantly generates and transmits fine electrical signal instructions to the micro-motor controllers of the first sliding hinge 9 and the second sliding hinge 10. According to the signal instructions, the controller drives the first sliding hinge 9 and the second sliding hinge 10 to move smoothly with millimeter-level accuracy, and then finely adjusts the distance between the third guide plate 6 and the flow channel wall, and optimizes the width of the lower flow channel in real time;

[0047] For example, in the early stage of frying dishes, the amount of oil smoke is small and the concentration is low. After receiving the signal, the hinge mechanism appropriately reduces the distance between the third guide plate 6 and the flow channel wall, accurately narrows the width of the lower flow channel, and allows the oil smoke to rise rapidly at an appropriate flow rate and pressure, avoiding the dispersion of oil smoke due to the flow channel being too wide, and ensuring that the oil smoke is accurately gathered towards the core processing area of ​​the range hood. As the cooking process progresses, when the intensity of oil smoke increases significantly and the concentration increases significantly, the smoke recognition module quickly responds, and the first sliding hinge 9 and the second sliding hinge 10 respond quickly, accurately increasing the width of the lower flow channel with smooth and stable movements, effectively improving the oil smoke absorption flux, preventing the accumulation of oil smoke due to the narrow flow channel, and greatly enhancing the overall capture efficiency of the range hood for oil smoke;

[0048] Angle adjustment principle of smoke collecting plate 3

[0049] The angle of the smoke collecting plate 3 is adjusted by a slider mechanism, and the slider mechanism includes a slider 12, a connecting rod 13 and a fixing member 14. The fixing member 14 is fixedly connected to the smoke collecting plate 3, one end of the connecting rod 13 is hinged to the fixing member 14, and the other end of the connecting rod 13 is slidably connected to the slider 12; the slider mechanism is also provided with a smoke recognition module, which has the ability to intelligently and accurately control the movement of the mechanism according to the real-time oil smoke intensity and reasonably optimize and adjust the angle of the smoke collecting plate. Specifically, when the cooking operation starts, the smoke recognition module starts immediately and runs at high speed, and conducts a full range of real-time monitoring of the oil smoke concentration and diffusion dynamics in the surrounding environment. Once the initial signs of slight changes in the oil smoke intensity are detected, the module quickly performs complex calculations and accurate judgments based on the preset sharp algorithm, and immediately transmits accurate and stable control instructions to the driving motors of the slider 12 and the connecting rod 13. According to the instructions, the driving motor drives the slider 12 and the connecting rod 13 to slide smoothly and efficiently on the preset precision guide rail, driving the smoke collecting plate 3 around the slider mechanism on both sides thereof to achieve fine adjustment of the angle. In light oil smoke cooking scenarios such as steaming, the oil smoke is thin and slowly diffuses. After the slider mechanism accurately receives the signal, it drives the slider to slide smoothly, causing the smoke collecting plate 3 to slightly rise or tilt at a very small angle, and accurately adjusts to the appropriate angle that matches the current oil smoke diffusion characteristics, guiding the oil smoke to flow to the air inlet of the range hood in the smoothest path, effectively preventing the oil smoke from escaping and drifting. In heavy oil smoke cooking conditions such as frying, the oil smoke diffuses violently, and the smoke recognition module immediately responds strongly, driving the slider to move quickly and significantly, pushing the smoke collecting plate 3 to quickly adjust to a larger tilt angle, forming a strong smoke collecting barrier, strongly preventing the oil smoke from spreading everywhere, ensuring that the oil smoke is efficiently gathered and quickly sucked out by the range hood, significantly improving the smoke collecting effect, and optimizing the quality of the kitchen air environment.

[0050] How it works

[0051] like Figure 1 As shown, the smoke collecting plate 3 is designed to be installed in front of the range hood to avoid collision with people's heads and the angle can be changed according to different scenes to achieve the best smoking effect; the first guide plate 4 is installed obliquely on the lower flow channel 1, and the second guide plate 5 and the third guide plate 6 are installed vertically on the lower flow channel 1; at the same time, the first guide plate 4, the second guide plate 5 and the third guide plate 6 are provided with snap grooves and externally connected with a two-speed heating module, which can realize flexible heating while being detachable.

[0052] like Figure 2 As shown, when the range hood is running, the oil smoke passes through the smoke collecting plate 3 and enters the interior of the range hood along the lower flow channel 1, and then is discharged in four streams, among which most of the oil smoke particles are discharged upward along the slit formed by the entrance of the lower flow channel 1 and the third guide plate 6, and the rest are discharged upward through the slit between the second guide plate 5 and the third guide plate 6, the slit between the first guide plate 4 and the second guide plate 5, and the slit between the bottom of the upper flow channel 7 and the first guide plate 4.

[0053] The first guide plate 4 of the kitchen range hood is installed on the lower flow channel 1, and the angle and height of the guide plate can be adjusted by connecting the transmission mechanism.

[0054] The second air guide plate 5 of the kitchen range hood is vertically installed in the lower flow channel 1. The second air guide plate 5 can be adjusted according to different usage conditions by connecting the transmission mechanism. It also includes a two-speed adjustable heating module, which can be heated according to different usage conditions.

[0055] The third guide plate mesh structure 6 of the kitchen range hood is vertically installed in the lower flow channel 1. By connecting the transmission mechanism, the third guide plate 6 can be adjusted according to different usage conditions. It also includes a two-speed adjustable heating module, which can be heated according to different usage conditions. The third guide plate mesh structure in this patent includes but is not limited to the mentioned mesh structure.

[0056] In the present invention, there are gaps between different guide plates to form multiple air flow inlets, wherein the third guide plate is configured to have a mesh structure. When the oil smoke passes through the air inlet, it first passes through the mesh structure, the oil smoke is disturbed and then gathered under the action of local vortices, and is discharged along the flow channel formed by the three guide plates. When the heating device on the guide plate is started, the irregular movement of the oil smoke particles is further increased, the aggregation of the oil smoke particles is further promoted, and the smoke collection efficiency of the range hood is improved.

[0057] The present invention is arranged inside the air inlet of the range hood, wherein the first guide plate is installed obliquely in the flow channel, and the second and third guide plates are installed vertically in the flow channel. By arranging and installing the guide plates, the oil smoke is gathered inside the flow channel and then discharged through the external channel. After adopting the above structure, the smoke collection effect of the range hood is effectively improved.

[0058] The module guide plate inside the flow channel of the range hood can be locally heated, disassembled, cleaned and replaced, and the temperature can be adjusted according to different operating conditions. When cleaning grease, a high-temperature heating mode is used to promote the dissolution of grease attached to the board wall. When cooking, a low-temperature heating mode is used to further promote the accumulation of oil smoke inside the flow channel.

[0059] The position of the guide plate inside the range hood flow channel can be adjusted according to different cooking methods, such as the angle of the first guide plate, the height and front-to-back distance of the second and third guide plates, etc.

[0060] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A kitchen range hood guide device, characterized in that: It comprises an oil fume filter (2), a smoke collecting plate (3) and a guide plate assembly; The smoke collecting plate (3) is installed in front of the range hood, the smoke filter (2) is installed at the smoke inlet of the range hood, and the guide plate assembly is installed in the lower flow channel (1) inside the range hood.

2. A kitchen range hood guide device according to claim 1, characterized in that: The guide plate assembly comprises a first guide plate (4), a second guide plate (5) and a third guide plate (6); The first guide plate (4), the second guide plate (5) and the third guide plate (6) are arranged in sequence from top to bottom in the lower flow channel (1) inside the range hood.

3. The flow guide device for a kitchen range hood according to claim 2, characterized in that: The first guide plate (4) is arranged obliquely in the lower flow channel (1) inside the range hood, and the upper end of the first guide plate (4) is inclined toward the front of the range hood, and the inclination angle is 30° to 50°; the second guide plate (5) and the third guide plate (6) are both arranged vertically in the lower flow channel (1) inside the range hood.

4. The flow guide device for a kitchen range hood according to claim 2, characterized in that: A slit is left between the lower flow channel (1) inside the range hood and the third guide plate (6), the width of the slit is (15mm-20mm), a slit is left between the first guide plate (4) and the second guide plate (5), the width of the slit is 5mm-10mm, a slit is left between the second guide plate (5) and the third guide plate (6), the width of the slit is 5mm-10mm, and a slit is left between the upper flow channel (7) inside the range hood and the first guide plate (4), the width of the slit is (30mm-50mm).

5. The flow guide device for a kitchen range hood according to claim 2, characterized in that: The first guide plate (4), the second guide plate (5) and the third guide plate (6) are all detachably mounted in the lower flow channel (1) inside the range hood by means of a snap-fit ​​and slot engagement.

6. The flow guide device for a kitchen range hood according to claim 2, characterized in that: Two-stage heating modules are installed on the first guide plate (4), the second guide plate (5) and the third guide plate (6).

7. The flow guide device for a kitchen range hood according to claim 2, characterized in that: The third guide plate (6) is a mesh structure.

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