Oil screen device and range hood

Abstract

The utility model relates to an oil screen device and a range hood, the oil screen device is arranged at an air inlet of a cooking fume suction device, and the oil screen device comprises a first oil screen, a second oil screen and a third oil screen, the second oil screen is located on the downstream side of the first oil screen in the airflow direction of the air inlet, second air inlet holes are distributed in the second oil screen, and the second oil screen is arranged on the first oil screen in a sliding mode in the mode that the second oil screen can move in the first direction relative to the first oil screen; the overlapping area of the second air inlet hole and the first air inlet hole in the first oil net can be adjusted along with the change of the moving position of the second oil net, and the first direction is parallel to the extending direction of the first oil net; the first oil screen is provided with a first receding opening penetrating from the front face of the first oil screen to the back face of the first oil screen, the second oil screen is provided with an operation handle which extends towards the first oil screen and can penetrate through the first receding opening to be exposed, and the operation handle is used for being held by a user to manually move the second oil screen in the first direction. The device has the advantages of low cost, light overall weight and convenience in disassembly and assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil net device technical field especially, relates to an oil net device and range hood. BACKGROUND

[0002] Oil fume suction device such as range hood, integrated cooker with oil fume suction function is kitchen appliance for purifying kitchen environment. The existing range hood's casing's air inlet all is equipped with the oil net for filtering oil fume, and the traditional oil net is mostly fixed integrated net, when unilateral cooking of user, cannot effectively utilize the air volume of range hood to carry out effective suction of oil fume, leading to the easy smoke of range hood in small gear unilateral cooking, and the noise of range hood in large gear is too big, cannot achieve high -efficient static suction.

[0003] Therefore, the utility model discloses a kind of air inlet assembly and the range hood of application with the air inlet assembly of this application No. CN202120676145.9 (authorized announcement No. CN215216376U) of China utility model discloses that air inlet assembly includes panel, panel is opened with air inlet, air inlet is provided with first oil net, first oil net has two, two first oil nets each one end is close to each other, two first oil nets each other another end is far away from each other, air inlet assembly further includes second oil net, each first oil net corresponds a second oil net, each second oil net is movably respectively in first position and second position, in first position, second oil net and first oil net cooperate and are in whole in the air intake state that air inlet is completely opened, in second position, second oil net and first oil net cooperate and are in whole in the state that air inlet is partially opened or closed. Air inlet assembly further includes movement mechanism for driving second oil net to move, movement mechanism selectively drives one of second oil nets to move in the direction away from another second oil net.

[0004] But the air inlet assembly (oil net device) of above-mentioned patent application still has certain deficiency, second oil net needs to be driven by movement mechanism (such as motor, transmission rod and cam transmission cooperation) and moves relative to first oil net, its production cost is higher, and it occupies large space, after driving mechanism is installed to oil net, also make oil net device whole appear cumbersome, lead to the dismounting process of oil net device is more laborious, reduce the use experience of user.

[0005] Therefore, existing oil net device and range hood still need further improvement. UTILITY MODEL CONTENTS

[0006] The first technical problem to be solved by the utility model is to provide an oil net device with low cost, overall lightness, convenient disassembly and assembly according to the current situation of the prior art.

[0007] The second technical problem to be solved by the utility model is to provide an oil fume extractor using the oil screen device.

[0008] The technical scheme adopted by the utility model for solving the first technical problem is: an oil screen device is arranged at the air inlet of an oil fume extractor and comprises:

[0009] A first oil screen has first air inlets distributed thereon;

[0010] A second oil screen is located at the downstream side of the first oil screen along the airflow direction of the air inlet and has second air inlets distributed thereon, the second oil screen is slidably arranged on the first oil screen in a manner of being movable relative to the first oil screen in a first direction, and the overlapping area of the second air inlets and the first air inlets on the first oil screen can be adjusted with the change of the moving position of the second oil screen, and the first direction is parallel to the extension direction of the first oil screen;

[0011] The first oil screen is provided with a first displacement opening penetrating from the front face to the back face, and the second oil screen has an operating handle extending towards the first oil screen and exposed outside through the first displacement opening, the operating handle is used for being held by a user to manually move the second oil screen in the first direction.

[0012] The oil fume extractor mentioned above can be an oil fume extractor or an integrated cooker with an oil fume extraction function.

[0013] In order to enable the operating handle to have sufficient moving stroke in the first direction, the first displacement opening is a strip-shaped opening extending in the first direction.

[0014] In order to simplify the structure of the second oil screen and reduce the production cost, the operating handle is a folded plate structure formed by stamping the main body of the second oil screen.

[0015] In order to facilitate the user to operate and apply force, the front end of the folded plate structure is further provided with a folded edge bent downward or upward as a holding part.

[0016] In order to shorten the moving stroke of the second oil screen as much as possible and ensure the reliability of the air volume adjustment of the oil screen device, the first air inlets on the first oil screen are arranged at intervals in the first direction, and each first air inlet extends in a second direction, the second air inlets on the second oil screen are arranged at intervals in the first direction, and each second air inlet extends in the second direction, and the second direction is perpendicular to the first direction.

[0017] In order to guide the movement of the second oil screen in the first direction and ensure the stability of the movement of the second oil screen, a slide rail assembly for linear sliding of the second oil screen relative to the first oil screen in the first direction is further arranged between the first oil screen and the second oil screen.

[0018] As an improvement, in order to simplify the structure of the slide rail assembly, the front side wall of the second oil screen has a limiting sliding groove recessed rearward and extending in the first direction, and the rear side wall of the first oil screen is provided with a limiting protruding rib protruding rearward and slidably limited in the limiting sliding groove, and the limiting protruding rib and the limiting sliding groove constitute the slide rail assembly.

[0019] In an alternative, the limiting protruding rib can be directly formed on the main body of the first oil screen, that is, the limiting protruding rib is designed in one body with the main body of the first oil screen, but considering that it is difficult to directly form the limiting protruding rib on the main body of the first oil screen and the processing cost is high, therefore, the rear side wall of the first oil screen is provided with a mounting plate, and the limiting protruding rib is formed on the side wall of the mounting plate facing the second oil screen.

[0020] In order to ensure the stability of the movement of the second oil screen and avoid blocking the air inlet hole on the first oil screen, the first oil screen and the second oil screen are both rectangular structures, and the four corner positions of the front side wall of the second oil screen are all provided with the limiting sliding groove, and the four corner positions of the first oil screen are all provided with the limiting protruding rib.

[0021] In order to improve the strength of the first oil screen, the four peripheral edges of the first oil screen are also provided with rearwardly folded flanges, and the second oil screen is arranged on the back of the first oil screen and located in the area defined by the flanges. The arrangement of the second oil screen in the area defined by the flanges of the first oil screen also makes the oil screen assembly as a whole as a module unit which is convenient to disassemble, thereby improving the assembly and disassembly efficiency.

[0022] In order to ensure the firmness of the installation of the oil screen device to the main body of the range hood, the second oil screen is also provided with a second accommodation opening penetrating from the front face to the back face, and the back face of the first oil screen is also provided with a snap element in the area corresponding to the second accommodation opening, and the snap element is connected with the snap engagement part at the air inlet of the range hood through the second accommodation opening.

[0023] In order to reduce the contact area between the first oil screen and the second oil screen and thereby reduce the friction resistance of the movement of the second oil screen and improve the flexibility of the manual adjustment of the second oil screen, at least one of the opposite side walls of the first oil screen and the second oil screen is also provided with a convex bump protruding outward for sliding contact with the corresponding side wall of the first oil screen or the second oil screen.

[0024] The technical solution adopted by the utility model to solve the second technical problem is: a range hood, comprising a shell, the shell is provided with a left and right extending air inlet, the air inlet comprises a first air inlet area and a second air inlet area arranged in sequence from left to right, and further comprises the above-mentioned oil screen device, the oil screen device has two, and is correspondingly arranged in the first air inlet area and the second air inlet area.

[0025] Compared with the prior art, the oil screen device has the advantages that the driving mechanism in the prior art is omitted, the operation handle is arranged on the second oil screen, the first displacement opening is arranged on the first oil screen, the operation handle can be exposed through the first displacement opening of the first oil screen, the user can hold the operation handle to manually move the second oil screen along the first direction, and the purpose of adjusting the air volume of the oil screen device is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective structural schematic view of the oil screen device of the embodiment of the utility model;

[0027] Figure 2 It is a perspective structural schematic view of the back of the oil screen device of the embodiment of the utility model;

[0028] Figure 3 It is an exploded view of the oil screen device of the embodiment of the utility model;

[0029] Figure 4 It is an exploded view of the oil screen device of the embodiment of the utility model from another angle;

[0030] Figure 5 It is a perspective structural schematic view of the extractor hood of the embodiment of the utility model;

[0031] Figure 6 It is a perspective structural schematic view of the extractor hood of the embodiment of the utility model (the oil screen device on the left side is in a separated state). DETAILED DESCRIPTION

[0032] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0033] In the description and claims of the utility model, directional terms such as "front", "back", "upper", "lower", "left", "right", "side", "top", "bottom" and the like are used to describe various example structural parts and elements of the utility model, but these terms are used only for the purpose of convenient description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the utility model can be arranged in different directions, these directional terms are only used for description and should not be regarded as limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0034] Figures 1-6An optimal embodiment of the oil screen device and the range hood is shown. The range hood comprises a casing 1 and a centrifugal fan arranged in the casing 1, the casing 1 generally comprises a fan frame 11 and a smoke collecting hood 12 arranged at the bottom of the fan frame 11, and the inner cavity of the fan frame 11 is communicated with the inner cavity of the smoke collecting hood 12. The front side wall of the smoke collecting hood 12 is provided with an air inlet 120, and the external smoke gas can enter the smoke collecting hood 12 through the air inlet 120. The centrifugal fan is arranged in the fan frame 11, and the centrifugal fan generates negative pressure when operating, and the external oil fume can be sucked into the smoke collecting hood 12 through the air inlet 120. The air inlet 120 of the smoke collecting hood 12 is further provided with an oil screen device for filtering the oil fume. The bottom of the smoke collecting hood 12 is provided with an oil cup 13, and the oil cup 13 is a long strip extending left and right, and is used for receiving the oil stains flowing down from the smoke collecting hood 12. The front part of the smoke collecting hood 12 is further provided with a smoke baffle 14 capable of deflecting forward and backward relative to the smoke collecting hood 12, and the smoke baffle 14 is connected to the main body of the smoke collecting hood 12 through a hinge movement mechanism, and specifically can deflect forward to open the above-mentioned air inlet 120 and deflect backward to shield and close the above-mentioned air inlet 120. The hinge movement mechanism for driving the smoke baffle 14 to deflect can adopt the conventional hinge movement mechanism in the prior art, and will not be described here.

[0035] Referring to Figure 5 , the air inlet 120 of the front side of the smoke collecting hood 12 is a strip-shaped port extending along the left-right direction, and the strip-shaped port is divided into a first air inlet area 1201 and a second air inlet area 1202 arranged in sequence along the left-right direction. The first air inlet area 1201 and the second air inlet area 1202 are both provided with an oil screen device, and the oil screen device is detachably connected at the first air inlet area 1201 and the second air inlet area 1202 of the air inlet 120.

[0036] The oil screen device comprises a first oil screen 21 and a second oil screen 22. Along the airflow direction at the air inlet 120, the first oil screen 21 and the second oil screen 22 are arranged in sequence, that is, the second oil screen 22 is located downstream of the first oil screen 21, and it can also be understood that the second oil screen 22 is arranged on the back of the first oil screen 21. The first oil screen 21 is distributed with first air inlets 210, and each first air inlet 210 is arranged in sequence and spaced along the left-right direction, and each first air inlet 210 is a strip-shaped hole extending along the width direction (that is, the second direction) of the first oil screen 21. The second oil screen 22 is distributed with second air inlets 220, and each second air inlet 220 is arranged in sequence and spaced along the left-right direction, and each second air inlet 220 is a strip-shaped hole extending along the width direction (that is, the second direction) of the second oil screen 22. Generally, the width size of the first air inlet 210 is the same as the width size of the second air inlet 220.

[0037] The main body of the first oil screen 21 and the second oil screen 22 is rectangular. The first oil screen 21 has a folded edge 214 at the four sides. The folded edge 214 can effectively improve the strength of the first oil screen 21. The second oil screen 22 is arranged on the back of the first oil screen 21 and located in the area defined by the folded edge 214, so that the oil screen assembly as a whole is a module unit which is convenient to disassemble and assemble, and the assembly and disassembly efficiency is improved.

[0038] The second oil screen 22 is arranged on the first oil screen 21 by sliding along the first direction through the sliding rail assembly. With the change of the moving position of the second oil screen 22, the overlapping area of the second air inlet hole 220 on the second oil screen 22 and the first air inlet hole 210 on the first oil screen 21 changes, so that the air volume of the oil screen device can be adjusted. The first direction is parallel to the extension direction of the first oil screen 21, and perpendicular to the extension direction of the first air inlet hole 210 and the second air inlet hole 220. Specifically, the first direction can be understood as the left-right direction shown in Figure 5 Figure 6 The front side wall of the second oil screen 22 has a limiting sliding groove 222 which is recessed backward and extends along the first direction. Specifically, the limiting sliding groove 222 is arranged at the four corner positions of the front side wall of the second oil screen 22. Correspondingly, the rear side wall of the first oil screen 21 has a limiting convex rib 2121 which is protruded backward and can be slidingly limited in the limiting sliding groove 222. The limiting convex rib 2121 and the limiting sliding groove 222 constitute the sliding rail assembly of the embodiment.

[0039] In an alternative, referring to Figure 4 The limiting convex rib 2121 can be directly formed on the main body of the first oil screen 21, that is, the limiting convex rib 2121 is designed as one with the main body of the first oil screen 21. However, it is difficult to directly form the limiting convex rib 2121 on the main body of the first oil screen 21, and the processing cost is high. Therefore, the rear side wall of the first oil screen 21 is provided with four mounting plates 212, and the limiting convex rib 2121 is formed on the side wall of the second oil screen 22. Specifically, the four mounting plates 212 are fixed on the main body of the first oil screen 21 by screwing on the folded edge 214 of the first oil screen 21.

[0040] ​In order to realize detachable installation of the oil screen device and the smoke collecting hood 12 of the range hood, the upper portion of the second oil screen 22 is further provided with a second displacement opening 223 penetrating from the front face to the back face, and the back face of the main body of the first oil screen 21 is also provided with a snap fastener 215 corresponding to the second displacement opening 223, which is connected with the snap fastener engaging portion 121 at the upper edge of the air inlet 120 of the range hood through the second displacement opening. The bottom portion of the first oil screen 21 is further provided with two downwardly extending insertion pieces 216, and the air inlet 120 of the range hood is correspondingly provided with insertion grooves for the insertion pieces 216. When the oil screen device is installed, the two insertion pieces 216 can be inserted into the insertion grooves of the air inlet 120 of the range hood, and then the oil screen device is inwardly deflected by the force, so that the snap fastener 215 is connected with the snap fastener engaging portion 121 at the air inlet 120 of the range hood. At least one of the two opposite side walls of the first oil screen 21 and the second oil screen 22 is further provided with an outwardly protruding convex portion 224. Specifically, the convex portion 224 of the present embodiment is provided on the front side wall of the second oil screen 22, and the convex portion 224 can be arranged in multiple. After the first oil screen 21 and the second oil screen 22 are installed in place, the convex portion on the second oil screen 22 is in sliding contact with the rear side wall of the first oil screen 21, so as to reduce the contact area between the first oil screen 21 and the second oil screen 22, and further reduce the friction resistance of the movement of the second oil screen 22, and improve the flexibility of manual adjustment of the second oil screen 22.

[0041] In order to facilitate manual movement and adjustment of the position of the second oil screen 22, the first oil screen 21 is provided with a first displacement opening 211 penetrating from the front face to the back face, and the second oil screen 22 is provided with an operation handle 221 extending towards the first oil screen 21 and exposed outside through the first displacement opening 211, which is held by the user to manually move the second oil screen 22 in the first direction. In order to simplify the structure of the second oil screen 22 and reduce the production cost, the operation handle 221 is a flange structure formed by stamping the main body of the second oil screen 22. Specifically, the front end of the flange structure is further provided with a downwardly or upwardly bent flange as a holding portion 2210, which can facilitate the user to operate and exert force, so that the movement and adjustment process of the second oil screen 22 is more labor-saving. In order to enable the operation handle 221 to have sufficient movement stroke in the first direction, the first displacement opening 211 is a strip-shaped opening extending in the first direction, and the length of the strip-shaped opening should be at least equal to or slightly greater than the sum of the length of the operation handle 221 and the width of the first air inlet hole 210 (the second air inlet hole 220), that is, it can meet the needs of completely opening or closing the corresponding first air inlet hole 210 and second air inlet hole 220.

[0042] Since the first oil screen 21 and the second oil screen 22 are both flat, the overall thickness of the oil screen device after assembly is also extremely small, and the thickness can be controlled within 11 mm. Since the second oil screen 22 is designed with an L-shaped operating handle 221, the operating handle 221 can be exposed through the first oil screen 21, so that the user can slide the second oil screen 22 by manually pushing and pulling the handle of the second oil screen 22 left and right. As can be seen, this single-opening and single-suction structure can be realized in a narrow space, occupies very small space, and uses fewer parts, thus being low in cost.

Claims

1. An oil screen device arranged at an air inlet (120) of an oil fume extractor, comprising: a first oil screen (21) having first air inlets (210) distributed thereon; a second oil screen (22) arranged downstream of the first oil screen (21) along the direction of air flow at the air inlet (120) and having second air inlets (220) distributed thereon, the second oil screen (22) being slidably arranged on the first oil screen (21) in a manner that it can move relative to the first oil screen (21) in a first direction, and the overlapping area of the second air inlets (220) with the first air inlets (210) on the first oil screen (21) can be adjusted with the change of the position of the second oil screen (22), the first direction being parallel to the extending direction of the first oil screen (21); characterized in that the first oil screen (21) is provided with first clearance openings (211) extending from the front surface to the back surface thereof, and the second oil screen (22) is provided with an operating handle (221) extending towards the first oil screen (21) and exposed outside through the first clearance openings (211), the operating handle (221) being used for manually moving the second oil screen (22) in the first direction.

2. An oil screen device according to claim 1, characterized in that: The first clearance openings (211) are strip-shaped openings extending in the first direction.

3. The oil screen apparatus of claim 1, wherein: The operating handle (221) is a folded plate structure formed by stamping the main body of the second oil screen (22).

4. An oil gallery arrangement according to claim 3, characterized in that: The front end of the folded plate structure is further provided with a downwardly or upwardly bent folded edge as a gripping portion (2210).

5. An oil screen device according to any one of claims 1 to 4, characterized in that: The first air inlets (210) on the first oil screen (21) are arranged in the first direction, and each first air inlet (210) extends in a second direction, the second air inlets (220) on the second oil screen (22) are arranged in the first direction, and each second air inlet (220) extends in the second direction, the second direction being perpendicular to the first direction.

6. An oil mesh device according to any one of claims 1 to 4, characterized in that: A slide rail assembly is further arranged between the first oil screen (21) and the second oil screen (22) for linear sliding of the second oil screen (22) relative to the first oil screen (21) in the first direction.

7. An oil screen apparatus according to claim 6, characterized in that: The front side wall of the second oil screen (22) is provided with a limiting slide groove (222) recessed rearwardly and extending in the first direction, and the rear side wall of the first oil screen (21) is provided with a limiting protruding rib (2121) protruding rearwardly and slidably limited in the limiting slide groove (222), the limiting protruding rib (2121) and the limiting slide groove (222) constituting the slide rail assembly.

8. An oil screen apparatus according to claim 7, characterized in that: The rear side wall of the first oil screen (21) is provided with a mounting plate (212) on which the limiting protruding rib (2121) is formed towards the side wall of the second oil screen (22).

9. The oil screen apparatus of claim 7, wherein: The first oil screen (21) and the second oil screen (22) are both rectangular structures, the four corner positions of the front side wall of the second oil screen (22) are provided with the limiting slide grooves (222), and the four corner positions of the first oil screen (21) are provided with the limiting protruding ribs (2121).

10. The oil screen apparatus of claim 7, wherein: The first oil screen (21) further has a turned-back flange (214) at its four peripheral edges, and the second oil screen (22) is arranged on the back of the first oil screen (21) and located in the area defined by the flange (214).

11. An oil mesh device according to any one of claims 1 to 4, characterized in that: The second oil screen (22) further has a second clearance opening (223) extending through from its front face to its back face, and the back face of the first oil screen (21) further has a latch (215) in the area corresponding to the second clearance opening (223), which is connected to the latch engagement portion (121) at the air inlet (120) of the oil fume extractor through the second clearance opening.

12. An oil mesh device according to any one of claims 1 to 4, characterized in that: At least one of the two side walls of the first oil screen (21) and the second oil screen (22) further has a convex bump (224) protruding outward for sliding contact with the corresponding side wall of the first oil screen (21) or the second oil screen (22).

13. A range hood, comprising a housing (1), a left-right extending air inlet (120) is formed on the housing (1), the air inlet (120) comprises a first air inlet area (1201) and a second air inlet area (1202) arranged in sequence from left to right, characterized in that: The oil screen device further comprises two oil screen devices according to any one of claims 1-12, which are respectively arranged at the first air inlet area (1201) and the second air inlet area (1202).

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