A safety net assembly for a range hood and a range hood

Abstract

The utility model provides a kind of safety net component and extractor hood for extractor hood belongs to kitchen appliance technical field.The safety net component for the extractor hood, comprising: oil guide disc and safety net;The middle part of oil guide disc is provided with the oil fume passage that passes through up and down;Oil guide disc is inclinedly arranged with high front and low rear, and the rear end bottom is equipped with oil outlet;Safety net is installed on oil guide disc, and covers oil fume passage.Through setting the oil guide disc with oil fume passage in middle part, and arranging it with high front and low rear inclination, setting oil outlet in rear end bottom, the oil dirt that can effectively undertake and quickly guide from the edge of oil fume passage drop is effectively undertaken and quickly guided, and oil dirt accumulation or dripping is avoided;At the same time, install the safety net covering oil fume passage on oil guide disc, not only can prevent hand or foreign matter from extending into upper high-speed rotating turbine to cause injury, improve safety, but also the integrated design of safety protection and oil dirt management is realized by the collaborative structure of oil guide disc and safety net, improve the cleaning convenience and overall reliability of extractor hood.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a safety net assembly for a range hood and a range hood. Background Technology

[0002] To prevent users from inserting their hands, cleaning tools, or other foreign objects into the high-speed rotating turbine area of ​​the range hood during cleaning or use, causing mechanical injury, some range hoods are equipped with safety nets at the smoke outlet. However, most existing safety nets are independently installed structures, lacking effective coordination with the oil guiding system. This results in grease condensing on the safety net surface not being effectively guided, easily dripping and causing secondary pollution. A more prominent problem is that traditional oil guiding trays are mostly horizontal or near-horizontal, with oil flow relying mainly on surface tension and a slight slope, resulting in insufficient oil guiding power and easy accumulation of oil at the front end. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a safety net assembly and range hood that integrate safety protection and efficient oil guiding functions.

[0004] In a first aspect, this utility model provides a safety net assembly for a range hood, comprising: an oil guide plate and a safety net; The oil guide plate has a vertically connected fume channel in the middle. The oil guide plate is inclined at the front and low at the back, and an oil drain port is provided at the bottom of its rear end. The safety net is installed on the oil guide plate and covers the fume duct.

[0005] Furthermore, the safety net includes a frame and multiple guardrails; Multiple baffles are arranged at intervals in the left-right direction and extend in the front-back direction, with their two ends connected to the front and rear ends of the frame, respectively, to cover the fume duct.

[0006] Furthermore, the cross-section of the frame and / or the stop bar is circular.

[0007] Furthermore, the rear end of the stop bar is connected to the top of the rear end of the frame.

[0008] Furthermore, the oil guide plate includes: a base plate, an inner oil baffle, and an outer oil baffle; The bottom plate of the tray is provided with a vertically connected fume duct that is open at the rear. The inner oil baffle extends upward along the periphery of the fume channel, and the outer oil baffle extends upward along the outer periphery of the bottom plate of the tray. The oil drain port is provided on the outer oil baffle located at the rear of the bottom plate of the disc; The front end and left and right sides of the frame are located between the inner oil baffle and the outer oil baffle, and are positioned close to the inner oil baffle.

[0009] Furthermore, recesses are provided near the front end and both sides of the bottom plate of the disc to form a connected oil guide groove; The two ends of the oil guide groove extend to the rear end of the bottom plate of the disc and are connected to the oil drain port.

[0010] Furthermore, an installation notch is formed between the rear end of the inner oil baffle and the outer oil baffle located at the rear of the disc bottom plate; The frame of the safety net is inserted into the installation notch, such that a portion of the frame is located between the inner oil-blocking edge and the outer oil-blocking edge.

[0011] Furthermore, the frame has a protrusion at a position corresponding to the corner of the inner oil baffle that is away from the inner oil baffle.

[0012] Furthermore, it also includes an oil guide plate; The oil guide plate is located at the edge of the oil outlet and extends downward at an angle.

[0013] In a second aspect, a range hood is provided, comprising: a housing assembly and a safety net assembly for a range hood as described in the above embodiments.

[0014] The outer casing assembly has a smoke inlet on the front and a smoke outlet on the top. The safety net assembly for the range hood is installed at the smoke outlet.

[0015] This utility model has the following advantages or beneficial effects: By incorporating a centrally located oil guide tray with a vertically integrated fume duct, and arranging it at a slight incline (higher at the front and lower at the back), with an oil drain outlet at the bottom rear, the system effectively collects and quickly guides grease dripping from the edges of the fume duct, preventing grease buildup or leakage. Simultaneously, a safety net covering the fume duct is installed on the oil guide tray, preventing injury from hands or foreign objects entering the high-speed rotating turbine above, thus enhancing safety. Furthermore, the synergistic structure of the oil guide tray and safety net achieves an integrated design for safety protection and grease management, improving the ease of cleaning and overall reliability of the range hood. Attached Figure Description

[0016] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0017] Figure 1 This is a first-view structural schematic diagram of a safety net assembly for a range hood according to an exemplary embodiment; Figure 2 yes Figure 1Enlarged view of part A in the image; Figure 3 yes Figure 1 Enlarged view of part B in the image; Figure 4 This is a second-view structural schematic diagram of a safety net assembly for a range hood, according to an exemplary embodiment. Figure 5 yes Figure 4 Enlarged view of section C in the image; Figure 6 This is a third-view structural schematic diagram of a safety net assembly for a range hood, according to an exemplary embodiment. Figure 7 This is a schematic diagram of a partial structure of a range hood from a first-view perspective, according to an exemplary embodiment. Figure 8 This is a schematic diagram of a second-view portion of the structure of a range hood according to an exemplary embodiment.

[0018] The reference numerals in the attached figures are explained as follows: 01. Oil guide plate, 02. Safety net, 03. Fume duct, 04. Oil outlet, 05. Oil guide groove, 06. Installation notch, 07. Oil guide plate, 08. Outer shell assembly, 09. Smoke outlet, 010. Smoke inlet, 011. Mounting hole, 012. Protrusion; 11. Bottom plate; 12. Inner oil baffle; 13. Outer oil baffle; 131. Front outer oil baffle, 132. Left outer oil baffle, 133. Right outer oil baffle, 134. Left rear outer oil baffle, 135. Right rear outer oil baffle; 21. Frame, 22. Stop bar, 23. Protrusion. Detailed Implementation

[0019] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0020] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0021] Figure 1This is a first-view structural schematic diagram of a safety net assembly for a range hood according to an exemplary embodiment; Figure 2 yes Figure 1 Enlarged view of part A in the image; Figure 3 yes Figure 1 Enlarged view of part B in the image; Figure 4 This is a second-view structural schematic diagram of a safety net assembly for a range hood, according to an exemplary embodiment. Figure 5 yes Figure 4 Enlarged view of section C in the image; Figure 6 This is a third-view structural schematic diagram of a safety net assembly for a range hood, according to an exemplary embodiment. Figure 7 This is a schematic diagram of a partial structure of a range hood from a first-view perspective, according to an exemplary embodiment. Figure 8 This is a schematic diagram of a second-view portion of the structure of a range hood according to an exemplary embodiment. Figure 1 The front, back, left, and right directions refer to the orientation of the range hood after the safety net assembly is installed. The above diagram is only to illustrate the structural relationships related to the invention and is not intended as an actual scale of the product.

[0022] In the design and use of range hoods, to effectively prevent grease generated during cooking from seeping into the upper turbine area, and to avoid personal injury caused by accidental insertion of hands or other foreign objects into the high-speed rotating turbine components during cleaning or operation, a range hood safety net assembly with a reasonable structure, complete functions, and good oil-guiding performance is particularly important. The following detailed embodiment comprehensively elaborates on the structural composition, working principle, installation method, and technical advantages of a range hood safety net assembly in practical applications. Based on this, several feasible alternative implementation schemes are extended to fully demonstrate the technical depth and application breadth of this solution.

[0023] Example 1 like Figures 1 to 6 As shown, a safety net assembly for a range hood according to an embodiment of the present invention includes: an oil guide plate 01 and a safety net 02; an oil fume channel 03 is provided in the middle of the oil guide plate 01; the oil guide plate 01 is inclined with the front higher than the back, and an oil drain port 04 is provided at the bottom of its rear end; the safety net 02 is installed on the oil guide plate 01 and covers the oil fume channel 03.

[0024] The safety net assembly for a range hood described in this embodiment comprises two main components: an oil guide plate 01 and a safety net 02. The oil guide plate 01 serves as the foundational load-bearing and flow-guiding structure of the entire assembly. It is arranged with a higher front end and a lower rear end, creating a tilt angle. This angle is typically set between 3° and 25°, preferably 15°, depending on the internal space layout of the range hood and the required oil drainage efficiency. This tilt design not only helps prevent oil from accumulating on the surface of the oil guide plate 01 over a long period and forming clumps, but also utilizes gravity to allow oil droplets or films adhering to the surface of the oil guide plate 01 to quickly flow towards the rear end and ultimately be discharged through the oil drain port 04. This achieves rapid flow and centralized collection of oil, effectively avoiding problems such as odor, bacterial growth, and cleaning difficulties caused by oil accumulation.

[0025] The oil guide tray 01 has a vertically integrated fume duct 03 in its center. The shape and size of this fume duct 03 match the rising smoke channel inside the range hood, typically being rectangular, elliptical, or polygonal, with the specific shape depending on the duct design of different range hood models. The fume duct 03 allows the fumes generated during cooking to pass smoothly and enter the turbine system above for purification. To ensure that oil dripping from the edges of the fume duct 03 is effectively collected, the design of the oil guide tray 01 must ensure that its front and left / right edges cover the corresponding edges of the fume duct 03, allowing oil flowing down the front and side edges of the fume duct 03 to fall directly into the oil guide tray 01 instead of dripping into the external environment or entering other undesigned areas.

[0026] An oil drain port 04 is located at the bottom rear end of the oil guide plate 01. This drain port 04 is situated at the lowest point of the oil guide plate 01's inclined direction, ensuring that oil can be smoothly discharged under gravity. The oil drain ports 04 are typically located on the left, right, or center of the rear of the oil guide plate 01; the specific number and location can be optimized based on the size of the oil guide plate 01 and its oil collection area. The oil drain ports 04 are connected to the oil cup or oil collection system inside the range hood, allowing the oil collected by the oil guide plate 01 to ultimately flow into the oil cup for easy regular cleaning by the user.

[0027] Safety net 02 is installed on top of oil guide plate 01 and completely covers fume duct 03. Its main function is physical isolation to prevent human hands, cleaning tools, or other foreign objects from entering the high-speed rotating turbine area above through fume duct 03, thereby avoiding mechanical injury accidents. The structural design of safety net 02 needs to balance permeability and safety, ensuring that fumes can pass smoothly while preventing foreign objects from passing through. In this embodiment, safety net 02 includes a frame 21 and multiple baffles 22. The frame 21 is a closed ring, rectangle, or polygonal structure, usually made of metal materials (such as stainless steel, aluminum alloy), high-temperature resistant engineering plastics, or glass, with good structural strength and corrosion resistance. Multiple baffles 22 are evenly spaced in the left-right direction and extend in the front-back direction, with their two ends fixedly connected to the front and rear ends of the frame 21, forming a grid structure to achieve complete coverage of fume duct 03.

[0028] The number, spacing, and diameter of the baffles 22 can be adjusted according to actual safety requirements. For example, in a home kitchen environment, the spacing between the baffles 22 is usually controlled between 10mm and 20mm to prevent children's fingers from sticking in; while in a commercial kitchen, the spacing can be further reduced according to specific safety standards. The baffles 22 have a straight rod structure, extending forward and backward. This design not only facilitates the even passage of smoke but also reduces airflow resistance and improves the overall smoke extraction efficiency of the range hood.

[0029] Furthermore, the cross-section of the frame 21 and / or the baffle 22 can be designed as circular. The advantage of using a circular cross-section is that its surface is smooth and without sharp edges, effectively reducing the area for oil adhesion. Simultaneously, oil condensed on the surface of the frame 21 or baffle 22 naturally converges at its bottom under gravity, forming larger oil droplets, thus accelerating the sliding speed of the droplets and preventing long-term oil residue buildup. In addition, the circular cross-section also has good hydrodynamic properties, reducing airflow turbulence and noise.

[0030] During installation, the rear end of the baffle 22 is preferably connected to the top of the rear end of the frame 21, rather than the side wall or bottom. This design has significant oil guiding significance: when oil condenses on the surface of the baffle 22 and flows backward along its length, the oil can smoothly converge to the top rear area of ​​the frame 21 because the rear end of the baffle 22 is connected to the top of the frame 21. After the safety net 02 assembly is fully installed, the rear part of the frame 21 is in close contact with the inner wall of the range hood housing assembly 08, allowing the oil condensed on the rear side of the frame 21 to flow downward along the inner wall of the housing and finally enter the oil cup located at the bottom of the housing. This "frame 21—housing—oil cup" oil guiding path design achieves drip-free and efficient oil guiding, significantly improving the range hood's self-cleaning ability and maintenance convenience.

[0031] The oil guide plate 01 is further subdivided into three parts: a base plate 11, an inner oil baffle 12, and an outer oil baffle 13. The base plate 11 is the main supporting structure of the oil guide plate 01, with a vertically continuous and rear-opening fume channel 03 in its center. The inner oil baffle 12 extends upward along the periphery of the fume channel 03, forming a barrier structure to prevent oil dripping from the edge of the fume channel 03 from splashing directly to the outside. The outer oil baffle 13 extends upward along the outer periphery of the base plate 11, forming the overall boundary of the oil guide plate 01 to enhance its oil-holding capacity.

[0032] The outer oil baffle 13 is divided into the front outer oil baffle 131 near the front end, the left outer oil baffle 132 and the right outer oil baffle 133 located on both sides, and the left rear outer oil baffle 134 and the right rear outer oil baffle 135 on both sides of the rear.

[0033] An oil drain port 04 is provided at the rear of the outer oil baffle 13. Specifically, the oil drain port 04 is formed by the gap between the left outer oil baffle 132 and the left rear outer oil baffle 134, and the gap between the right outer oil baffle 133 and the right rear outer oil baffle 135, forming two oil drain channels on the left and right sides. This ensures that oil can be discharged from both sides at the same time, avoiding the risk of uneven flow or blockage caused by oil draining from one side.

[0034] To further improve oil guiding efficiency, the oil guiding plate 01 has recesses near the front end and left and right sides of the base plate 11. These recesses extend continuously to form oil guiding grooves 05. The oil guiding grooves 05 are arranged along the inner sides of the front outer oil baffle 131, left outer oil baffle 132, and right outer oil baffle 133, extending to the rear end of the base plate 11 and connecting to the oil drain port 04. When oil flows backward along the surface of the oil guiding plate 01, the oil guiding grooves 05 effectively guide the oil to flow towards the oil drain port 04, preventing the oil from dispersing and stagnating due to surface tension or unevenness during flow. The cross-sectional shape of the oil guiding grooves 05 can be U-shaped, V-shaped, or semi-circular, and its depth and width are optimized according to the oil guiding volume requirements.

[0035] At the rear of the oil guide plate 01, an installation notch 06 is formed between the rear end of the inner oil baffle 12 and the outer oil baffle 13 located at the rear of the plate base 11. This installation notch 06 accommodates the frame 21 of the safety net 02, allowing a portion of the frame 21 to be inserted, thus achieving a secure connection between the safety net 02 and the oil guide plate 01. Specifically, the installation notch 06 is located between the left rear outer oil baffle 134 and the inner oil baffle 12, and between the right rear outer oil baffle 135 and the inner oil baffle 12. Its dimensions match the thickness and height of the frame 21, ensuring that after installation, the front end and both sides of the frame 21 are located between the inner oil baffle 12 and the outer oil baffle 13, and are close to the inner oil baffle 12, while the rear end of the frame 21 is exposed to the outside to contact the inner wall of the outer casing. This embedded installation method not only improves the overall structural strength of the component but also enhances the sealing performance, preventing oil from seeping out from the connection gaps.

[0036] In this embodiment, the base plate 11 is made of thin metal sheet (such as stainless steel sheet or galvanized steel sheet) or high-temperature resistant engineering plastic (such as polypropylene PP or polycarbonate PC) through stamping, bending, or injection molding processes, and has an overall isosceles trapezoidal flat plate structure. Specifically, the two parallel sides of the trapezoid are the upper base and the lower base, where the lower base is the longer side and is called the "base side," and the upper base is the shorter side and is called the "top side." The two non-parallel sides of the trapezoid are the left side and the right side, forming a trapezoidal outline that gradually widens from front to back. This trapezoidal design matches the front-narrow and back-wide shell structure of most range hoods, maximizing the use of internal space while ensuring that the oil guide plate 01 has sufficient oil collection area in the front-back direction.

[0037] A rectangular through hole is formed in the bottom edge area of ​​the base plate 11, i.e., the lower base of the trapezoid. This through hole extends vertically along the thickness of the plate, forming an oil fume channel 03 for the passage of fumes. The rectangular hole is usually centered horizontally, with its length coinciding with the bottom edge, cutting off the middle of the lower base of the trapezoid. Its width extends from the front, passing through the rear edge of the entire base plate 11, but not through the front edge. Specifically, the front end of the rectangular hole is kept at a certain distance from the front edge of the base plate 11, forming a complete plate structure for connecting and supporting the inner oil baffle 12 and the outer oil baffle 13 at the front.

[0038] The height of the front end of the inner oil baffle 12 (i.e., the side closest to the user's operating surface) is significantly greater than the height of its left and right sides. Specifically, the inner oil baffle 12 bends upward along the edge of the rectangular fume duct 03 to form a continuous enclosure structure. The height of the front inner oil baffle 12 located at the front edge is H1, while the heights of the left and right inner oil baffles 12 located at the left and right edges are H2, and H1 > H2. For example, in a specific implementation, H1 can be designed to be 25mm, while H2 is 15mm, creating a significant height difference.

[0039] This stepped height design, with a high front and low sides, offers multiple technological advantages. First, since users typically cook in front of the range hood while it's in operation, the front is the area most prone to oil dripping and affecting user experience. The higher front inner edge 12 effectively blocks large oil droplets or films from dripping from the front, preventing them from crossing the edge of the oil guide plate 01 and dripping directly onto the stove, cookware, or the user's arms, thus significantly improving safety and ease of cleaning. Especially in high-temperature cooking scenarios such as stir-frying, where grease evaporates rapidly and condenses quickly, the risk of oil dripping from the front is even higher; the high front edge design plays a crucial protective role.

[0040] Secondly, the structural design conforms to the natural flow law of oil sludge. Because the oil guide plate 01 is inclined at the front and lower at the rear, oil sludge tends to flow backward under the influence of gravity. Although the front inner oil baffle 12 is relatively high, it does not obstruct the normal flow of oil sludge. On the contrary, its higher structure can temporarily accumulate some oil sludge, causing it to form larger oil droplets after reaching a certain volume, thereby accelerating the backward flow and reducing the possibility of oil sludge remaining at the front and forming grease buildup. At the same time, the higher front inner oil baffle 12 also enhances the structural rigidity and improves the overall deformation resistance of the oil guide plate 01.

[0041] Furthermore, designing the inner oil-blocking edges 12 on both sides to be relatively low provides greater operating space and adaptability for the installation of the safety net 02. The safety net 02 typically includes a closed frame 21 and multiple front-to-back extending baffles 22. The frame 21 needs to be inserted into the mounting notch 06 on the oil guide plate 01. If the inner oil-blocking edges 12 on both sides are too high, it may limit the insertion depth of the frame 21 or increase assembly difficulty. By lowering the height of the inner oil-blocking edges 12 on both sides, interference with the frame 21 of the safety net 02 can be reduced while ensuring basic oil guiding function. This makes it easier for the frame 21 to be embedded in the installation gap between the inner oil-blocking edge 12 and the outer oil-blocking edge 13, improving assembly efficiency and connection stability.

[0042] It is worth noting that a protrusion 23, located away from the inner oil baffle 12, is specifically provided at the corner of the frame 21 corresponding to the inner oil baffle 12. The purpose of this protrusion 23 is to increase the gap between the frame 21 and the inner oil baffle 12 at the corner, preventing oil from accumulating in large quantities at the corner due to the narrow space and eventually overflowing from the inner oil baffle 12. Since corner areas are prone to oil accumulation points, the introduction of the protrusion 23 effectively improves the local flow field, allowing oil to smoothly bypass the corner and continue flowing backward, thereby enhancing the reliability and stability of the oil guiding system.

[0043] Furthermore, this embodiment also includes an oil guide plate 07, which is disposed at the edge of the oil drain port 04 and extends downward at an angle. The function of the oil guide plate 07 is to further guide the oil flowing out of the oil drain port 04 to the inner wall of the housing assembly 08, ensuring that the oil does not drip or splash below the oil drain port 04. After installation, the end of the oil guide plate 07 away from the oil drain port 04 is in close contact with the inner wall of the housing assembly 08, forming a continuous oil guiding path, allowing the oil to flow smoothly along the inner wall of the housing to the oil cup. The oil guide plate 07 can be made of the same material as the oil guide plate 01, or it can be made of a flexible material to adapt to different housing curvatures.

[0044] To securely fix the oil guide plate 01 to the smoke outlet 09 area of ​​the range hood housing assembly 08, the base plate 11 is provided with at least one, preferably two or four, mounting holes 011. These mounting holes 011 are used to cooperate with the support structure or fixing bracket inside the housing assembly 08 and are mechanically connected by fasteners (such as self-tapping screws, machine screws, or rivets). In particular, the key structure of this embodiment is that each mounting hole 011 is not directly opened in the planar area of ​​the base plate 11, but is provided with a columnar or platform-shaped protrusion 012 structure that protrudes upward 012 on the upper surface of the base plate 11, and the mounting hole 011 passes through the axial center of the protrusion 012.

[0045] Specifically, the protrusion 012 is an integrally formed structure extending vertically or nearly vertically upward from the upper surface of the base plate 11. Its cross-section can be circular, frustum-shaped, square, or polygonal, with a height generally ranging from 5mm to 15mm. The outer diameter or side length is slightly larger than the head size of the fastener to ensure that the screw head does not directly contact the surface of the base plate 11. The protrusion 012 has mounting holes 011 penetrating its upper and lower end faces. These holes can be smooth or threaded. If threaded, they can directly mate with screws without the need for an additional nut; if smooth, they can be locked in place by a screw and a nut or snap-fit ​​structure on the outer casing side. The protrusion 012 structure is typically integrally formed with the base plate 11 using stamping, stretching, or injection molding processes. Especially in metal oil guide plates 01, stamping with a die allows for the upward flanging of a portion of the material to form a protrusion, enhancing the local structural rigidity and avoiding the increased cost and assembly complexity associated with welding or additional parts.

[0046] The raised 012 type mounting hole 011 structure has multiple technical advantages. First, because the raised 012 elevates the mounting hole 011 above the surface of the base plate 11, the head of the fastener is positioned higher and will not directly contact the oil accumulated in the oil guide plate 01. This effectively prevents oil from seeping into the threaded connection, causing corrosion, jamming, or difficulty in disassembly, significantly improving maintenance convenience. Second, the raised 012 structure increases the local thickness and strength of the mounting point, preventing deformation or cracking of the base plate 11 due to stress concentration when tightening screws, which is especially suitable for thinner plates or brittle plastic materials. Third, the raised 012 can serve as an assembly guide structure, playing a positioning and centering role during installation, improving assembly efficiency and accuracy.

[0047] During actual installation, the oil guide plate 01 is first aligned with the fixing bracket inside the housing assembly 08 through the mounting hole 011 on the protrusion 012. Then, the fasteners are screwed in and tightened using an electric screwdriver or hand tool, stabilizing the oil guide plate 01 with a front-high-back-low posture. This structure can also be combined with other functional designs. For example, rubber O-rings can be embedded during installation to achieve a leak-proof seal at the installation point.

[0048] To ensure the robustness of the connection between the oil guide plate 01 and the safety net 02, as well as the structural stability during long-term use, welding is an efficient and reliable solution for fixing them into an integrated structure. The following detailed embodiment describes the specific structural design, process implementation, and technical advantages of connecting the oil guide plate 01 and the safety net 02 by welding.

[0049] The safety net assembly for the range hood in this embodiment comprises two main parts: an oil guide plate 01 and a safety net 02. The oil guide plate 01 is stamped from a stainless steel plate (such as SUS304) and has an overall inclined structure that is higher at the front and lower at the back. A vertically penetrating oil fume channel 03 is located in the middle for the passage of fumes. It has an outer oil-blocking edge 13 and an inner oil-blocking edge 12, and an oil drain port 04 at the rear, forming a complete oil guiding and collecting system. The safety net 02 includes a metal frame 21 and multiple baffles 22 arranged at intervals along the left-right direction and extending forward-backward, forming a mesh structure. It covers the oil fume channel 03 to prevent injury from hands or foreign objects entering the upper turbine. The safety net 02 is also made of high-temperature resistant and corrosion-resistant stainless steel to ensure long-term stability in oil fume environments.

[0050] The welding points are mainly located between the frame 21 of the safety net 02 and the installation area of ​​the oil guide plate 01. After the safety net 02 is placed on the oil guide plate 01 and completely covers the fume duct 03, the front end, left and right sides, and part of the rear end of its frame 21 overlap or butt with the inner oil baffle 12, outer oil baffle 13, or the edge of the bottom plate 11 on the oil guide plate 01. Subsequently, laser welding, resistance spot welding, or miniature right rear outer oil baffle 135IG (tungsten inert gas welding) is used to perform local fusion at multiple key locations where the frame 21 contacts the oil guide plate 01, so that the two metal materials melt and bond together at high temperature, and form a strong metallurgical connection after cooling.

[0051] In addition to the above-described embodiments, various alternative or improved solutions can be considered. For example, the baffle 22 of the safety net 02 can adopt a wavy, spiral, or mesh structure to increase the protective density; the oil guide plate 01 can be made of metal or polymer composite material with a self-cleaning coating to reduce oil adhesion. Furthermore, sensors and intelligent control systems can be integrated to monitor oil accumulation in real time and issue cleaning reminders when thresholds are reached, further enhancing the user experience.

[0052] In summary, the safety net assembly for range hoods described in this embodiment achieves the dual functions of safety protection and efficient oil guiding through the coordinated design of the oil guide plate 01 and the safety net 02. It has a reasonable structure, superior performance, wide applicability, and good market prospects.

[0053] Example 2 like Figure 7 and Figure 8 As shown, an embodiment of the present invention provides a range hood, comprising: a housing assembly 08 and a safety net assembly for a range hood as described in Embodiment 1. The housing assembly 08 has a smoke inlet 010 on its front side and a smoke outlet 09 on its top; the safety net assembly for the range hood is installed at the smoke outlet 09.

[0054] The outer casing assembly 08, serving as the main structural frame of the range hood, is typically made of metal materials (such as cold-rolled steel plate or stainless steel) or high-strength engineering plastics, processed through stamping, bending, welding, or injection molding. It possesses excellent structural strength, high-temperature resistance, and corrosion resistance. The outer casing assembly 08 has a hollow cavity structure, with a smoke inlet 010 on the front and a smoke outlet 09 on the top. The smoke inlet 010 is the first entry point for cooking fumes into the range hood, usually located in the front area near the stovetop. Its shape can be elongated, arc-shaped, or multi-segmented, depending on the type of range hood (such as side-draft, top-draft, or tower type). The position and angle of the smoke inlet 010 are aerodynamically optimized to effectively capture rising airflow of cooking fumes, reduce fume escape, and improve fume extraction efficiency.

[0055] The smoke exhaust section 09 is located at the top center or rear of the outer casing assembly 08 and is the key channel for exhausting fumes from inside the range hood. The smoke exhaust section 09 typically connects the fan system (such as a centrifugal turbine) and the exhaust duct. Its cross-sectional shape is usually circular, square, or rectangular, and its size matches the fan outlet to ensure smooth airflow and reduce wind resistance and noise. In this embodiment, the safety net assembly for the range hood is installed at the smoke exhaust section 09, located below the fan turbine.

[0056] During the operation of the range hood, high-temperature fumes are drawn in through the smoke inlet 010, guided upwards by the smoke guide plate, pass through the gap of the baffle 22 of the safety net 02 assembly, and enter the smoke outlet 09. The fumes are then pressurized and discharged outdoors by the fan system. During this process, some of the grease in the fumes condenses into liquid oil droplets due to the temperature drop, adhering to the frame 21, baffle 22, and surface of the oil guide plate 01 of the safety net 02. Thanks to the inclined design of the oil guide plate 01 (higher at the front and lower at the back) and the surrounding structure of its inner and outer oil-blocking edges 13, these oil droplets flow rapidly backwards under gravity, collect at the oil outlet 04 via the oil guide groove 05, and are guided by the oil guide plate 07 to the inner wall of the outer casing assembly 08, finally flowing into the oil cup at the bottom for collection.

[0057] In practical applications, the safety net 02 component is suitable for various types of range hoods, including top-mounted, side-mounted, tower-type, and island-type range hoods. Depending on the structural characteristics of different models, the shape, size, and tilt angle of the oil guide plate 01 and the safety net 02 can be adjusted accordingly. For example, in a side-mounted range hood, the tilt angle of the oil guide plate 01 can be appropriately increased to accommodate a steeper upward path of the smoke; while in a top-mounted range hood, a larger area of ​​the oil guide plate 01 can be used to improve oil collection efficiency.

[0058] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0059] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0060] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety net assembly for a range hood, characterized in that, include: Oil guide plate (01) and safety net (02); The oil guide plate (01) is provided with an oil fume channel (03) that runs vertically through the middle. The oil guide plate (01) is inclined at the front and low at the rear, and an oil drain port (04) is provided at the bottom of its rear end; The safety net (02) is installed on the oil guide plate (01) and covers the fume duct (03).

2. The safety net assembly for a range hood according to claim 1, characterized in that, The safety net (02) includes a frame (21) and multiple guardrails (22); Multiple baffles (22) are arranged at intervals in the left-right direction and extend in the front-back direction, with their two ends connected to the front and rear ends of the frame (21) respectively, to cover the fume duct (03).

3. A safety net assembly for a range hood according to claim 2, characterized in that, The cross-section of the frame (21) and / or the stop bar (22) is circular.

4. A safety net assembly for a range hood according to claim 2 or 3, characterized in that, The rear end of the stop bar (22) is connected to the top of the rear end of the frame (21).

5. A safety net assembly for a range hood according to claim 2, characterized in that, The oil guide plate (01) includes: a plate base plate (11), an inner oil baffle (12), and an outer oil baffle (13); The bottom plate (11) is provided with a vertically connected and rear-open fume duct (03) in the middle; The inner oil baffle (12) extends upward along the periphery of the fume channel (03), and the outer oil baffle (13) extends upward along the outer periphery of the bottom plate (11); The oil drain port (04) is provided on the outer oil baffle (13) located at the rear of the bottom plate (11); The front end and the left and right sides of the frame (21) are located between the inner oil baffle (12) and the outer oil baffle (13), and are set close to the inner oil baffle (12).

6. A safety net assembly for a range hood according to claim 5, characterized in that, Recesses are provided near the front end and both sides of the bottom plate (11) to form a connected oil guide groove (05); The two ends of the oil guide groove (05) extend to the rear end of the bottom plate (11) and are connected to the oil drain port (04).

7. A safety net assembly for a range hood according to claim 5, characterized in that, An installation notch (06) is formed between the rear end of the inner oil baffle (12) and the outer oil baffle (13) located at the rear of the bottom plate (11); The frame (21) of the safety net (02) is inserted into the installation notch (06) such that a portion of the frame (21) is located between the inner oil baffle (12) and the outer oil baffle (13).

8. A safety net assembly for a range hood according to claim 7, characterized in that, The frame (21) has a protrusion (23) at a position corresponding to the corner of the inner oil baffle (12) that is far away from the inner oil baffle (12).

9. A safety net assembly for a range hood according to claim 1, characterized in that, It also includes an oil guide plate (07); The oil guide plate (07) is disposed at the edge of the oil outlet (04) and extends downward at an angle.

10. A range hood, characterized in that, include: The housing assembly (08) and the safety net assembly for a range hood as described in any one of claims 1 to 9; The outer casing assembly (08) has a smoke inlet (010) on the front and a smoke outlet (09) on the top; The safety net assembly for the range hood is installed at the smoke outlet (09).

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