Oil cup mounting structure for range hood and range hood

Abstract

The utility model relates to an oil cup installation structure for a range hood and the range hood, and the oil cup installation structure comprises an oil cup assembly which comprises two oil cups which are sequentially arranged in the left-right direction; the first mounting frame is mounted at the bottom of a shell of the range hood, and two first hanging parts are arranged on the first mounting frame, so that the first connecting parts of the two oil cups can be hung on the first hanging parts respectively; the first mounting frame comprises a hanging plate and two mounting plates extending to the left side and the right side, the two mounting plates are connected with the bottom of the machine shell, the two first hanging parts are arranged on the hanging plate, and the two mounting frames are further provided with oil blocking structures used for blocking oil from flowing to the hanging plate from the mounting plates. Through the separated design of the hanging plate and the mounting plate and the oil blocking structure, an oil liquid flowing path is effectively blocked, oil liquid on the machine shell is prevented from diffusing from the mounting plate to the joint position of the hanging plate and the first connecting part of the oil cup, cleanliness of the outer surface of the oil cup and the first hanging part is guaranteed, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially, relates to a range hood oil cup mounting structure and range hood. BACKGROUND

[0002] Range hood is a kind of kitchen appliance that purifies kitchen environment.Currently, the width of range hood is generally about 900mm, and even the width of some models is 1000mm. This requires the width of the oil cup matched with it to be between 900-1000mm. Currently, domestic products on the market generally use single oil cup, which is very inconvenient when taking and placing the oil cup, especially when it is full of oil. It is not only inconvenient to take, but also easy to spill. The oil cup is too long, which is also very inconvenient for users to clean the oil cup.

[0003] Therefore, the Chinese utility model patent application with the application number CN202323052087.0 discloses a range hood, which includes a range hood body and at least two oil collecting pieces installed on the range hood body. Each oil collecting piece is provided with a connecting piece, and the range hood body is provided with a plurality of mounting pieces. The number of mounting pieces is the same as that of connecting pieces and corresponds to each other. Each connecting piece is connected to the corresponding mounting piece, and the adjacent two mounting pieces are symmetrical to each other. The design of multiple split oil cups in the left-right direction can be easily disassembled and placed in the dishwasher for cleaning. However, this oil cup mounting structure design still has some problems. During the operation of the range hood, a large amount of oil will be collected in the volute. Generally, this part of oil is discharged to the bottom plane of the range hood, and then discharged to the oil cup through the opening. However, due to the surface tension of the oil, the oil will spread to the outer plane of the bottom after passing through the oil leakage hole, and then spread to the outer surface of the oil cup through the joint position of the oil cup hook, thereby dropping to the user's operation table surface, affecting the user's experience.

[0004] Therefore, the existing range hood needs to be further improved. UTILITY MODEL CONTENTS

[0005] The first technical problem to be solved by the utility model is to provide a range hood oil cup mounting structure that can effectively isolate the diffusion of oil from the casing of the range hood to the surface of the oil cup according to the current status of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a range hood applying the above oil cup mounting structure according to the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the first technical problem is as follows: a range hood oil cup mounting structure, comprising:

[0008] The oil cup assembly comprises two oil cups arranged in sequence along the left-right direction, and the two oil cups are provided with first connecting parts at two adjacent ends;

[0009] A first mounting frame is mounted on the bottom of the casing of the range hood, and the first mounting frame has two first hanging parts for hanging the first connecting parts of the two oil cups respectively;

[0010] The first mounting frame comprises a hanging plate and two mounting plates extending from the hanging plate to the left and right sides respectively, the two mounting plates are connected to the bottom of the casing, the two first hanging parts are arranged on the hanging plate, and each of the two mounting frames is further provided with an oil blocking structure for blocking the flow of oil from the mounting plate to the hanging plate.

[0011] The first mounting frame for mounting on the casing comprises a hanging plate and mounting plates, the two mounting plates are connected to the bottom of the casing, the hanging plate is provided with two first hanging parts for hanging the oil cup, and the separation design of the hanging plate and the mounting plate and the oil blocking structure effectively block the oil flow path, avoid the spread of oil from the mounting plate to the joint position of the first connecting part of the oil cup on the hanging plate, ensure the cleanliness of the outer surface of the oil cup and the first hanging part, and improve the user experience.

[0012] In order to simplify the above-mentioned oil blocking structure, facilitate processing, and adapt to different mounting plate forms, the mounting plate or the hanging plate or the position where the mounting plate and the hanging plate meet has a downward protruding oil blocking protrusion or an upward recessed oil blocking groove, and the above-mentioned oil blocking protrusion or oil blocking groove constitutes the oil blocking structure. The oil blocking protrusion or groove directly intercepts the flow of oil through physical barriers, without complex processes, low cost and strong adaptability. The above-mentioned oil blocking protrusion or oil blocking groove extends in the front-rear direction, so as to block the flow or spread of oil in the left-right direction. It can be conceived that, in addition to the above-mentioned oil blocking protrusion and oil blocking groove, the oil blocking structure can also adopt: 1. V-shaped, U-shaped or wave-shaped micro-grooves (width 0.5-2mm, depth 0.3-1mm) are processed on the surface of the first mounting frame, and are arranged in the direction of oil smoke flow. The capillary effect is used to guide the flow of liquid oil along the groove in the front-rear direction to the oil cup, so as to avoid the spread of the oil film. 2. An oil-repellent and oil-attractive gradient coating is arranged on the first mounting frame, that is, a stepped surface treatment is adopted, for example, an ultra-oil-repellent coating is sprayed on the hanging plate, especially in the area adjacent to the first hanging part, and an oil-attractive coating (such as titanium oxide) is used near the mounting plate. The coating is realized by screen printing or plasma spraying process. Among them, the oil-repellent area can reduce the adhesion of oil stains, the oil-attractive area can accelerate the coalescence and downward flow of condensed oil droplets, and the gradient design can form a "repulsion-attraction" synergistic effect.

[0013] Considering that the oil may accumulate in the contact area between the hanging plate and the bottom of the casing, causing the oil to spread to the oil cup, therefore, the hanging plate and the bottom of the casing have a first gap.

[0014] In order to form the first gap, the hanging plate can be concave or the bottom of the casing can be convex, but in order to avoid the hanging plate being too protruding downward, the bottom of the casing is concave upward at the position opposite to the hanging plate, so that the first gap is formed between the hanging plate and the concave upward area of the bottom of the casing.

[0015] As an improvement, the first connecting part of the two oil cups is a first insertion piece extending forward and backward, the two first hanging parts on the hanging plate are both first mounting slots extending forward and backward, the side parts of the two first mounting slots are oppositely open and are spaced apart in the left-right direction, and the front parts of the two first mounting slots are both provided with a first mounting opening for the first insertion piece of the oil cup to slide into the corresponding mounting slot from front to back.

[0016] In order to simplify the structure of the first mounting slot of the first mounting frame and reduce the cost, the hanging plate is provided with a first bending edge extending downward and then bending to the right side, and a second bending edge extending downward and then bending to the left side, and the first bending edge and the second bending edge correspond to form the two first mounting slots with the main body of the hanging plate. The first mounting slot is directly formed by the bending edge, which simplifies the processing steps and improves the production efficiency.

[0017] In order to facilitate the first insertion piece of the oil cup to quickly insert into the first mounting slot, the area where the first mounting opening is located on the hanging plate is formed with a first guide slope that gradually inclines downward from back to front, and the included angle between the first guide slope and the horizontal plane is α, wherein the value of α is in the range of 2°<α<90°. The first guide slope guides the smooth sliding of the first insertion piece of the oil cup, which improves the assembly efficiency of the oil cup.

[0018] In order to realize the hanging and mounting of the other two distal ends of the oil cup away from each other, the bottom of the casing is further provided with two second mounting frames arranged at intervals, the first mounting frame is located between the two second mounting frames, the two distal ends of the two oil cups are both provided with a second connecting part, and the two second mounting frames are both provided with a second hanging part for the second connecting part of the two oil cups to hang thereon.

[0019] In order to avoid the oil on the main body of the casing from spreading to the second mounting frame, the casing comprises left and right side plates and a main casing body located between the two side plates, and the two second mounting frames are respectively arranged at the bottoms of the two side plates. The second mounting frame connected to the bottoms of the two side plates has a second gap between the main casing body. The installation part of the second mounting frame of the oil cup and other oil guiding surfaces of the casing maintain a second gap of at least 1mm, which prevents oil droplets from spreading to the second mounting frames of the left and right oil cups.

[0020] As an improvement, the second connecting part of the two oil cups is a second insertion piece extending front to back, the second hanging part on the two second mounting racks is a second mounting slot extending front to back, the side part of the second mounting slot on the two second mounting racks is open in the left-right direction and faces away from each other, the front part of the second mounting slot has a second mounting opening for the insertion piece of the oil cup to slide from front to back into the corresponding second mounting slot, and the area where the second mounting opening is located on the two second mounting racks forms a second guide slope that gradually inclines downward from back to front, and the included angle between the second guide slope and the horizontal plane is β, wherein the value of β is in the range of 2°<β<90°. The second guide slope can guide the second insertion piece of the oil cup to smoothly slide in, thereby improving the assembly efficiency of the oil cup.

[0021] The utility model discloses a kind of oil cup mounting structures for range hood, including shell, and further including the oil cup mounting structure of above-mentioned range hood.

[0022] Compared with prior art, the utility model has the advantages that: the first mounting rack for mounting to the shell includes a hanging plate and mounting plates, the two mounting plates are connected to the bottom of the shell, the hanging plate is provided with two first hanging parts for hanging the oil cup, and the separation design of the hanging plate and the mounting plate and the oil-blocking structure effectively block the flow path of the oil, preventing the oil on the shell from spreading from the mounting plate to the joint position between the first connecting part of the oil cup and the hanging plate, ensuring the cleanliness of the outer surface of the oil cup and the first hanging part, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic view of the range hood of the utility model embodiment;

[0024] Figure 2 It is a three-dimensional structure schematic view of the range hood of the utility model embodiment, and the oil cup is in a separated state;

[0025] Figure 3 It is a vertical sectional view of the range hood of the utility model embodiment along the left-right direction;

[0026] Figure 4 It is a three-dimensional structure schematic view of the range hood of the utility model embodiment after removing the oil cup, and the first mounting rack and the second mounting rack on the right side are in a separated state;

[0027] Figure 5 It is a three-dimensional structure schematic view of the first mounting rack of the utility model embodiment;

[0028] Figure 6 It is another angle of the three-dimensional structure schematic view of the first mounting rack of the utility model embodiment;

[0029] Figure 7A vertical sectional view of the first mounting rack of the embodiment of the utility model along the front-rear direction;

[0030] Figure 8 A right view of the second mounting rack of the right side of the embodiment of the utility model.

[0031] Figure 9 A three-dimensional structural schematic view of the second mounting rack of the right side of the embodiment of the utility model. DETAILED DESCRIPTION

[0032] The utility model will be described further 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", "rear", "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 herein only for the purpose of convenience of 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 1-9 A preferred embodiment of the oil cup mounting structure for a range hood and the range hood of the utility model is shown.

[0035] The range hood comprises a casing 10 and a centrifugal fan arranged in the casing 10. An air inlet 14 is formed in the front side wall of the casing 10, and external smoke gas can enter the casing 10 through the air inlet 14. The centrifugal fan generates negative pressure when operating, and external oil fume can be sucked into the casing 10 through the air inlet 14. An oil screen is further arranged at the air inlet 14 of the casing 10 for filtering oil fume. The bottom of the casing 10 is provided with an oil cup assembly for receiving oil stains flowing down from the smoke collecting hood. In order to facilitate cleaning and disassembly, the oil cup assembly comprises two oil cups 2 arranged in sequence from left to right, and both of the two oil cups 2 are long strips extending left and right. The front part of the casing 10 is further provided with a smoke baffle 15 capable of deflecting forward and backward relative to the smoke collecting hood. The smoke baffle 15 is connected to the main body of the casing 10 through a hinge movement mechanism, and specifically can deflect forward to open the above-mentioned air inlet 14 and deflect backward to block and close the above-mentioned air inlet 14. The hinge movement mechanism for driving the smoke baffle 15 to deflect can adopt a conventional hinge movement mechanism in the prior art, which will not be described herein.

[0036] Referring to Figures 1-3The range hood of the embodiment further comprises an oil cup mounting structure, which comprises an oil cup assembly, a first mounting frame 3, and a second mounting frame 4. The oil cup assembly comprises two (or three or more) oil cups 2 arranged side by side in the left-right direction, and the adjacent ends of the two oil cups 2 are respectively provided with first connecting portions 21, which are specifically first tabs extending in the front-rear direction. The ends of the two oil cups 2 away from each other are respectively provided with second connecting portions 22, which are also second tabs extending in the front-rear direction.

[0037] Referring to Figures 4-7 The first mounting frame 3 is fixed to the central area of the bottom of the range hood shell 10, and comprises a hanging plate 31 and mounting plates 32 extending from the left and right sides of the hanging plate 31. The two mounting plates 32 are connected to the bottom of the range hood shell 10 by screws (or rivets, welding, etc.). The bottom of the hanging plate 31 is provided with two first hanging portions 311, which are specifically two first mounting grooves 312 extending in the front-rear direction, and the side portions of the two first mounting grooves 312 are open and opposite to each other and spaced apart in the left-right direction. The front end of each first mounting groove 312 is provided with a first mounting opening 314 for the first tab of the oil cup 2 to slide from front to back.

[0038] The first mounting groove 312 of the hanging plate 31 of the embodiment is formed by bending the edge, specifically: the left and right sides of the hanging plate 31 extend downward and outward (bending angle 90°), forming a first bending edge 313a and a second bending edge 313b, and the two bending edges correspond to the first mounting groove 312 extending in the front-rear direction. This structure does not require additional welding or processing of the groove body, simplifying the manufacturing process. The height position of the main body of the hanging plate 31 of the embodiment is slightly higher than the height of the mounting plate 32, and the bottom surface of the bending edge of the hanging plate 31 is flush with or slightly lower than the bottom surface of the mounting plate 32, thereby avoiding the first mounting groove 312 being too low and ensuring that the oil cup 2 can be as close as possible to the range hood shell 10, improving the appearance delicacy.

[0039] The bending edge of the first mounting frame 3 can be formed by stamping, which makes the bending edge setting area of the hanging plate 31 form an opening or a notch, and a steel plate can be welded above the opening or the notch of the hanging plate 31 to ensure user convenience (guidance), and at the same time, the upper surface of the entire hanging plate 31 can be sealed to prevent a small amount of oil accumulated on the outer surface of the range hood shell 10 from dripping.

[0040] The first gap 34 is formed between the hanging plate 31 of the first mounting frame 3 and the corresponding area of the bottom of the range hood shell 10, and the gap is achieved by recessing the corresponding area of the bottom of the range hood shell 10 upward, and the recessing depth is 2 mm. By setting the first gap 34, the hanging plate 31 of the first mounting frame 3 can be prevented from contacting the corresponding area of the bottom of the range hood shell 10, thereby preventing oil from flowing from the mounting plate 32 to the hanging plate 31.

[0041] The installation plate 32 of the first installation frame 3 of the embodiment is further provided with an upwardly recessed oil-blocking groove at the joint with the hanging plate 31, which continuously extends in the front-rear direction. The oil-blocking groove constitutes an oil-blocking structure 33 for blocking or intercepting the spread of oil at the bottom of the casing 10 along the surface of the installation plate 32 towards the hanging plate 31.

[0042] The area where the first installation opening 314 of the first installation slot 312 of the hanging plate 31 is located, i.e. the top surface of the transverse portion of the bent edge, forms a first guide slope 3140 that gradually slopes downward from back to front, and the included angle a with the horizontal plane is in the range of 2°<a<90°, preferably 5°. The design of the first guide slope 3140 facilitates the sliding of the first tab of the oil cup 2 into the first installation slot 312, thereby improving the installation efficiency of the oil cup 2.

[0043] Continuing to refer to Figure 4 The casing 10 of the embodiment includes left and right side plates 11 and a main housing 12 between the two side plates 11. The first installation frame 3 is arranged at the middle of the bottom of the main housing 12, and the two second installation frames 4 are arranged at the bottom of the two side plates 11, which can be fixed by screws, rivets, welding, etc. The bottom of the main housing 12 is further provided with oil leakage holes for the oil collected at the inner bottom to flow into the corresponding oil cup below.

[0044] In the embodiment, a gap (such as an open slot) is reserved in the left-right direction between the bottom of the two side plates 11 and the bottom of the main housing 12, so that the second installation frame 4 connected to the bottom of the two side plates 11 has a second gap 13 with the main housing 12. Maintaining a second gap 13 of at least 1 mm between the installation position of the second installation frame 4 of the oil cup 2 and the oil guide surface of the bottom of the main housing 12 of the casing 10 can prevent the spread of oil droplets to the second installation frame 4 of the left and right oil cups 2.

[0045] Referring to Figure 8 and Figure 9The two second mounting racks 4 are left-right symmetrical in structure. Each second mounting rack 4 is provided with a second hanging part 41, which is a second mounting groove 42 extending front-back, with the side part open outward, i.e. the side part of the second mounting groove 42 of the left second mounting rack 4 is open leftward, and the side part of the second mounting groove 42 of the right second mounting rack 4 is open rightward. Similarly to the forming mode of the first mounting groove 312 of the first mounting rack 3, the two second mounting racks 4 also correspondingly have a third bent edge 410 extending downward and then bending leftward or rightward, which forms the above-mentioned second mounting groove 42 corresponding to the bottom wall of the side plate 11 of the cabinet 10. The front end of the second mounting groove 42 of the two second mounting racks 4 is provided with a second mounting port 43, and a second guide inclined surface 430 gradually inclined downward from back to front is formed, for guiding the second tab of the oil cup 2 to slide in. The second guide inclined surface 430 forms an angle β with the horizontal plane, and the value of β is in the range of 2°<β<90°, and preferably 5°.

[0046] In order to enable the first tab and the second tab of the oil cup 2 to be assembled to the specified positions on the corresponding first mounting rack 3 and second mounting rack 4, a limiting press type 40 is arranged at the rear end of the first mounting groove 312 of the first mounting rack 3 and the second mounting groove 42 of the second mounting rack 4, the thickness of the tab of the oil cup 2 is denoted as d, and the gap between the press type surface of the limiting press type 40 and the bearing surface of the corresponding tab of the oil cup 2 is less than 0.8d, and in the embodiment, it is preferably 0.5d.

[0047] The first mounting rack 3 for being mounted to the cabinet 10 includes a hanging plate 31 and mounting plates 32, the two mounting plates 32 are connected to the bottom of the cabinet 10, the hanging plate 31 is provided with two first hanging parts 311 for hanging the oil cup 2, and through the separation design of the hanging plate 31 and the mounting plate 32 and the oil blocking structure 33, the oil flow path is effectively blocked, the diffusion of oil on the cabinet 10 from the mounting plate 32 to the joint position between the hanging plate 31 and the first connecting part 21 of the oil cup 2 is avoided, the cleanliness of the outer surface of the oil cup 2 and the first hanging part 311 is ensured, and the user experience is improved.

[0048] On the basis of the above embodiments, other embodiments can be obtained by replacing and improving the related technical features. For example, in addition to the oil blocking groove or the oil blocking convex rib structure described above, the oil blocking structure 33 on the first mounting frame 3 can also be: V-shaped micro grooves (width 1 mm, depth 0.5 mm) are processed on the surface of the hanging plate 31, and are arranged in parallel along the front and back directions. The micro grooves guide the oil to flow to the inside of the oil cup 2 along the groove through the capillary effect, avoiding the lateral diffusion of the oil film. Alternatively, the area adjacent to the first mounting groove 312 of the hanging plate 31 is sprayed with a super-oleophobic coating (contact angle > 150°), and the surface of the mounting plate 32 is coated with an oleophilic coating (titanium oxide), forming an oleophobic-oleophilic gradient, and using the "repulsion-attraction" effect to accelerate the aggregation and directional flow of oil droplets. For another example, the oil cup assembly of the present embodiment is not limited to two oil cups 2, and the oil cup assembly can be expanded to three oil cups 2, and two first mounting frames 3 are correspondingly arranged. Two first mounting grooves 312 are arranged on the hanging plate 31 of each first mounting frame 3, and the end portions of adjacent oil cups 2 are hung on the same mounting frame by the insertion piece.

Claims

1. An oil cup mounting structure for a range hood, comprising: an oil cup assembly including two oil cups (2) arranged in sequence in a left-right direction, each of the two oil cups (2) having a first connecting portion (21) at an adjacent end portion; a first mounting rack (3) mounted on a bottom of a casing (10) of the range hood, the first mounting rack (3) having two first hanging portions (311) for respectively hanging the first connecting portions (21) of the two oil cups (2) thereon; characterized in that the first mounting rack (3) includes a hanging plate (31) and two mounting plates (32) extending from the hanging plate (31) to left and right sides respectively, the two mounting plates (32) being connected to the bottom of the casing (10), the two first hanging portions (311) being arranged on the hanging plate (31), and each of the two mounting plates (32) further having an oil blocking structure (33) for blocking oil from flowing from the mounting plate (32) to the hanging plate (31).

2. The oil cup mounting structure for a range hood according to claim 1, characterized by: The mounting plate (32) or the hanging plate (31) or a position where the mounting plate (32) and the hanging plate (31) meet has an oil blocking protrusion protruding downward or an oil blocking groove recessed upward, and the oil blocking protrusion or the oil blocking groove constitutes the oil blocking structure (33).

3. The oil cup mounting structure for a range hood according to claim 2, characterized by: The hanging plate (31) and the bottom of the casing (10) have a first gap (34) therebetween.

4. The oil cup mounting structure for a range hood according to claim 3, characterized by: The bottom of the casing (10) is recessed upward at a position opposite to the hanging plate (31), so that the first gap (34) is formed between the hanging plate (31) and the upwardly recessed position of the bottom of the casing (10).

5. The oil cup mounting structure for a range hood according to claim 2, characterized by: The first connecting portions (21) of the two oil cups (2) are first insertion pieces extending in a front-rear direction, the two first hanging portions (311) on the hanging plate (31) are first mounting grooves (312) extending in a front-rear direction, the two first mounting grooves (312) are open at opposite sides and are spaced apart in the left-right direction, and each of the two first mounting grooves (312) has a first mounting opening (314) at a front portion thereof for sliding the first insertion piece of the oil cup (2) into the corresponding first mounting groove (312) from front to rear.

6. The oil cup mounting structure for a range hood according to claim 5, characterized by: The hanging plate (31) has a first bent edge (313a) extending downward and then bending to the right side, and has a second bent edge (313b) extending downward and then bending to the left side, and the first bent edge (313a) and the second bent edge (313b) correspondingly form the two first mounting grooves (312) with a main body of the hanging plate (31).

7. The oil cup mounting structure for a range hood according to claim 5, characterized by: A region of the hanging plate (31) where the first mounting opening (314) is located forms a first guide inclined surface (3140) gradually inclined downward from rear to front, and an included angle between the first guide inclined surface (3140) and a horizontal plane is α, where 2° < α < 90°.

8. The oil cup mounting structure for a range hood according to any one of claims 1 to 7, characterized by: The bottom of the casing (10) is further provided with two second mounting racks (4) arranged at intervals, the first mounting rack (3) is located between the two second mounting racks (4), the two oil cups (2) are provided with second connecting portions (22) at two distal ends away from each other, and the two second mounting racks (4) are provided with second hanging portions (41) for respectively hanging the second connecting portions (22) of the two oil cups (2).

9. The oil cup mounting structure for a range hood according to claim 8, characterized by: The casing (10) comprises left and right side plates (11) and a main casing (12) located between the two side plates (11), the two second mounting racks (4) are arranged at the bottoms of the two side plates (11) respectively, and the second mounting rack (4) connected to the bottom of the two side plates (11) has a second gap (13) with the main casing (12).

10. A range hood comprising a housing (10), characterized in that: The oil cup mounting structure for the range hood according to any one of claims 1-9 is further included.

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