A range hood

Abstract

A range hood has a recessed cavity at the bottom of its fixed housing to accommodate a lifting air intake. The lifting air intake has a smoke-collecting chamber. An oil guide plate is provided on the front side of the recessed cavity. The front side of the oil filter plate at the top of the smoke-collecting chamber has a forward-sloping surface extending downwards. An oil guide connecting plate extending upwards and backwards is installed on the oil guide plate. The rear part of the oil guide connecting plate has an extension extending below the forward-sloping surface. A first oil guide groove is formed between the oil guide connecting plate and the oil guide plate. Oil falling into the first oil guide groove enters the oil cup through oil guide channels on both sides of the fixed housing. The first oil guide groove of this range hood can smoothly guide the condensed oil on the front side. After setting the oil guide connecting plate, the height of the rear plate below the oil guide plate, which cannot hold oil, is reduced, and the length of the forward-sloping surface in the front-back direction is shortened. This helps to reduce the size of the air intake, making it less likely for the air intake to interfere with the solid housing. Sufficient installation space is left on the front side of the bottom of the housing for installing components such as lighting. The structural layout is more compact and reasonable.

Description

Technical Field

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

[0002] In the field of kitchen fume purification equipment, range hoods with a smoke-collecting chamber structure are widely used due to their unique cavity design, which effectively gathers the fumes generated during cooking and significantly improves the efficiency of fume collection and extraction. However, if the distance between the range hood's air inlet and the area where the fumes are generated is large, the fume's intake path is longer, increasing the intake time and making it easier for fumes to escape during cooking. Lowering the installation height of the range hood and bringing the smoke inlet as close to the smoke source as possible, while improving the fume extraction effect, results in a smaller cooking space, making it easier for the cook's head to accidentally hit the smoke hood. Furthermore, a lower installation height also affects visibility and the overall appearance of the kitchen. Therefore, lift-type range hoods were invented. Lift-type range hoods can flexibly adjust their working height according to cooking needs. While they can capture fumes more closely when operating at a lower working height, this also introduces the problem of condensed oil adhesion. Because the air inlet of a lift-type range hood is positioned low, the high-temperature fumes generated during cooking condense more quickly upon contact with the low-temperature surface of the smoke collection chamber, forming a large amount of condensed oil that adheres to the surface of the chamber. Existing smoke collection chambers typically consist of a backward-sloping surface and a forward-sloping surface. Traditional solutions mostly only address oil drainage on the backward-sloping surface, which is closer to the wall, neglecting the drainage of condensed oil on the forward-sloping surface. However, when the lift-type range hood is operating, the forward-sloping surface, being the side closest to the cooking area, lacks an effective drainage path, making it highly susceptible to dripping condensed oil onto the stovetop or cooking food under gravity. This not only affects kitchen hygiene but also poses a food safety hazard. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a range hood that facilitates the drainage of condensed oil on the front side of the smoke collection chamber, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a range hood, including a fixed box and a lifting air inlet body, the bottom of the fixed box has a cavity for accommodating the lifting air inlet body, the lifting air inlet body can move up and down relative to the fixed box, an oil cup is installed on the rear bottom of the lifting air inlet body, and the lifting air inlet body has an upwardly concave smoke collection cavity, characterized in that: an oil guide plate is provided on the front side of the cavity, the top of the smoke collection cavity is an oil filter plate, the front side of the oil filter plate has a forward inclined surface extending forward and downward, an oil guide connecting plate extending backward and upward is installed on the oil guide plate, the rear part of the oil guide connecting plate has an extension extending to below the forward inclined surface, a first oil guide groove is formed between the oil guide connecting plate and the oil guide plate, and oil guide channels are provided on both sides of the fixed box body, the oil falling into the first oil guide groove enters the oil cup through the oil guide channel.

[0005] In order to collect the oil on the lower surface of the oil guide plate, the lower part of the oil guide plate extends backward and downward to the lower part of the oil guide plate and forms a second oil guide groove. The oil on the lower surface of the oil guide plate can flow into the second oil guide groove and flow into the oil cup through the oil guide channel.

[0006] To ensure that the oil on the front inclined surface falls onto the oil guide connecting plate, the lower edge of the front inclined surface has an inward notch or a local outward convex part near the left and right sides.

[0007] More preferably, the lower edge of the front inclined surface has a downwardly folded edge, and the downwardly folded edge has the concave notch or a partially convex portion.

[0008] In order to allow the oil on both sides of the front inclined surface to flow smoothly into the oil guide connecting plate, the left and right sides of the lower flange form inclined edges that slope inward from top to bottom, and the vertical projection of the bottom of the inclined edges falls on the oil guide connecting plate.

[0009] In order to form the smoke collection chamber structure of the lifting air intake body, the top of the front inclined surface of the oil filter plate has a rear inclined surface extending downward, and a smoke inlet is opened on the rear inclined surface.

[0010] The lighting can be installed in multiple different positions. Preferably, the lighting is installed at the bottom front side of the fixed box, and the lighting is located in front of the oil guide plate.

[0011] To make the connection between the front inclined surface of the oil filter plate and the oil guide connecting plate more natural, the inclination angles of the front inclined surface and the oil guide connecting plate are consistent when the lifting air inlet body is fully lowered.

[0012] To avoid interference between the front inclined surface of the oil filter plate and the oil guide plate, when the lifting air intake body is fully raised, the lifting air intake body is housed in the concave cavity, and the front inclined surface flips forward and upward and approaches the oil guide plate.

[0013] In order to ensure that the fumes can be smoothly drawn into the fixed box, as a preferred embodiment of any of the above solutions, the fixed box is equipped with a fan system, the lifting air inlet has a smoke inlet, and the smoke inlet is fluidly connected to the air inlet of the fan system.

[0014] Compared with existing designs, the advantages of this utility model are as follows: The oil filter plate at the top of the smoke collection chamber of this range hood has a forward-sloping surface extending downwards, and an oil guide connecting plate extending upwards and backwards is installed on the oil guide plate of the fixed housing. The rear part of the oil guide connecting plate has an extension extending below the forward-sloping surface. A first oil guide groove is formed between the oil guide connecting plate and the oil guide plate. The oil on the forward-sloping surface can flow into the first oil guide groove and then into the oil cup through the oil guide channels on both sides of the fixed housing, thus realizing the smooth drainage of the condensed oil on the front side. In addition, the setting of the oil guide connecting plate not only reduces the height of the rear plate below the oil guide plate that cannot hold oil, but also shortens the length of the forward-sloping surface in the front-back direction, which is conducive to reducing the size of the air inlet. The air inlet is less likely to interfere with the solid housing, so that there is enough installation space on the front side of the bottom of the housing to install components such as lighting. The structural layout is more compact and reasonable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model (with the lifting air inlet in the raised state);

[0016] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the range hood.

[0017] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0018] Figure 4 for Figure 1 The diagram shown is a schematic of the internal structure of the range hood.

[0019] Figure 5 for Figure 4 Enlarged schematic diagram of part B;

[0020] Figure 6 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model (with the lifting air inlet body in a lowered state);

[0021] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the range hood.

[0022] Figure 8 for Figure 7 An enlarged schematic diagram of section C. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 8 As shown, the range hood in this embodiment includes a fixed housing 1 and a lifting air inlet 2. The bottom of the fixed housing 1 has a cavity 3 for accommodating the lifting air inlet 2. An oil guide plate 6 is provided on the front side of the cavity 3. A light 10 is installed on the bottom front side of the fixed housing 1, located in front of the oil guide plate 6. The lifting air inlet 2 can move up and down relative to the fixed housing 1. A fan system (not shown) is installed inside the fixed housing 1. The lifting air inlet 2 has a smoke inlet 76, which is fluidly connected to the air inlet of the fan system. Figure 1 and Figure 2 As shown, when the machine is started, the lifting air inlet 2 extends to the bottom of the fixed housing 1, and the oil fumes enter the fan system through the smoke inlet 76. Figure 6 and Figure 7 As shown, the lifting air inlet 2 is housed in the recess 3 of the fixed housing 1.

[0025] In this embodiment, an oil cup 4 is installed at the bottom rear side of the lifting air inlet 2. The oil cup 4 is elongated. The lifting air inlet 2 has an upwardly concave smoke collection chamber 5. The top of the smoke collection chamber 5 is an oil filter plate 7. The front side of the oil filter plate 7 has a forward inclined surface 71 extending forward and downward. The top of the forward inclined surface 71 has a rear inclined surface 72 extending backward and downward. The smoke inlet 76 is located on the rear inclined surface 72. Figure 2 and Figure 3 As shown, when the lifting air inlet 2 is fully lowered, the tilt angles of the front inclined surface 71 and the oil guide connecting plate 8 are the same. Figure 7 and Figure 8 As shown, when the lifting air intake 2 is fully raised, the lifting air intake 2 is housed in the concave cavity 3, the front inclined surface 71 flips forward and upward and approaches the oil guide plate 6, the front inclined surface 71 is basically in contact with the surrounding box, the spatial layout is more compact and reasonable. At this time, in order to avoid the lifting air intake 2, there is no need to move the fixed box 1 outward, and it will not encroach on the installation space of the lighting lamp 10.

[0026] like Figure 2 and Figure 3As shown, an oil guiding connecting plate 8 extending rearward and upward is installed on the oil guiding plate 6. The rear part of the oil guiding connecting plate 8 has an extension extending below the front inclined surface 71. A first oil guiding groove 11 is formed between the oil guiding connecting plate 8 and the oil guiding plate 6. The lower part of the oil guiding plate 6 extends rearward and downward to below the oil guiding connecting plate 8, forming a second oil guiding groove 12. In this embodiment, lower frame frames are installed on both sides of the fixed housing 1, and oil guiding channels 9 are formed in the lower frame frames. The oil falling into the first oil guiding groove 11 enters the oil cup 4 through the oil guiding channel 9. The oil on the lower surface of the oil guiding connecting plate 8 can flow into the second oil guiding groove 12 and into the oil cup 4 through the oil guiding channel 9. The first oil guiding groove 11 is located above the second oil guiding groove 12. The first oil guiding groove 11 collects most of the condensed oil on the front side, and the second oil guiding groove 12 plays an auxiliary role in collecting the oil. The first oil guide groove 11 is positioned relatively high, and the oil falling onto it has high potential energy, ensuring good fluidity and effectively preventing oil sludge from accumulating and clogging within it. With the first oil guide groove 11 in place, the second oil guide groove 12 is positioned lower, reducing the height of the lower rear side plate 61 that cannot collect condensed oil. This also helps to reduce the height of the lower frame rear side 13 below the side plate 61, thereby reducing the area of ​​the region that cannot collect condensed oil and lowering the risk of oil dripping.

[0027] In this embodiment, the lower edge of the front inclined surface 71 has a downwardly folded flange 73. The lower edge of the flange 73 has an inwardly recessed notch 74 near the left and right sides. The inwardly recessed notch 74 can cut off the left and right flow of oil along the end of the front inclined surface 71 (especially when the range hood is installed at an angle), ensuring that it is within the receiving range of the oil guide connecting plate 8. In addition, the left and right sides of the flange 73 form inclined edges 75 that slope inward from top to bottom. The vertical projection of the bottom of the inclined edge 75 falls on the oil guide connecting plate 8, so that the oil on the left and right sides of the front inclined surface 71 can flow smoothly into the oil guide connecting plate 8.

[0028] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0029] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts, collectively referred to as the first part and the second part, meaning that a fluid, gas, liquid, or a mixture of both can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, flow guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A range hood, comprising a fixed housing (1) and a lifting air intake body (2), wherein the bottom of the fixed housing (1) has a cavity (3) for accommodating the lifting air intake body (2), the lifting air intake body (2) is capable of moving up and down relative to the fixed housing (1), an oil cup (4) is installed at the rear bottom of the lifting air intake body (2), and the lifting air intake body (2) has an upwardly concave smoke collection cavity (5), characterized in that: The front side of the cavity (3) is provided with an oil guide plate (6), the top of the smoke collection cavity (5) is an oil filter plate (7), the front side of the oil filter plate (7) has a forward inclined surface (71) extending forward and downward, an oil guide connecting plate (8) extending backward and upward is installed on the oil guide plate (6), the rear part of the oil guide connecting plate (8) has an extension extending to below the forward inclined surface (71), a first oil guide groove (11) is formed between the oil guide connecting plate (8) and the oil guide plate (6), and oil guide channels (9) are provided on both sides of the fixed box (1), the oil falling into the first oil guide groove (11) enters the oil cup (4) through the oil guide channel (9).

2. The range hood according to claim 1, characterized in that: The lower part of the oil guide plate (6) extends backward and downward to the lower part of the oil guide connecting plate (8) and forms a second oil guide groove (12). The oil on the lower surface of the oil guide connecting plate (8) can flow into the second oil guide groove (12) and flow into the oil cup (4) through the oil guide channel (9).

3. The range hood according to claim 1, characterized in that: The lower edge of the front inclined surface (71) has an inward notch (74) or a local outward convex part near the left and right sides.

4. The range hood according to claim 3, characterized in that: The lower edge of the front inclined surface (71) has a downwardly folded flange (73), and the downwardly folded flange (73) has the concave notch (74) or a partially convex portion.

5. The range hood according to claim 4, characterized in that: The left and right sides of the downturned edge (73) form inclined edges (75) that slope inward from top to bottom, and the vertical projection of the bottom of the inclined edge (75) falls on the oil guide connecting plate (8).

6. The range hood according to claim 1, characterized in that: The top of the front inclined surface (71) of the oil filter plate (7) has a rear inclined surface (72) extending downward, and a smoke inlet (76) is opened on the rear inclined surface (72).

7. The range hood according to claim 1, characterized in that: A lighting lamp (10) is installed on the bottom front side of the fixed box (1), and the lighting lamp (10) is located on the front side of the oil guide plate (6).

8. The range hood according to claim 1, characterized in that: When the lifting air intake body (2) is fully lowered, the tilt angles of the front inclined surface (71) and the oil guide connecting plate (8) are consistent.

9. The range hood according to claim 1, characterized in that: With the lifting air intake (2) fully raised, the lifting air intake (2) is housed in the cavity (3), and the front inclined surface (71) flips forward and upward and approaches the oil guide plate (6).

10. The range hood according to claim 1, characterized in that: The fixed housing (1) is equipped with a fan system, and the lifting air inlet (2) has a smoke inlet (76), which is in fluid communication with the air inlet of the fan system.

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