Oil cup mounting structure and range hood applying same

Abstract

The utility model discloses an oil cup installation structure and a range hood applying the same, the oil cup installation structure comprises an oil cup, the oil cup comprises a cup body with an opening at the upper end and folding edges arranged at the end parts of the two sides of the upper end part of the body in the length direction, and each folding edge is formed by bending one end of the cup body towards the middle; the oil cup installation assembly comprises a base, an upper shell and a top bead, at least part of the top bead is arranged in the upper shell, the top bead keeps the trend of penetrating through the upper shell to be close to the base, and a gap used for being matched with the folded edge of the oil cup is formed between the end face, facing the base, of the top bead and the surface, facing the upper shell, of the base; the interval between the top bead and the base is smaller than the thickness of the folded edge of the oil cup; the pushing direction of the oil cup during installation is recorded as from front to back, a guide face used for guiding the folded edge to the interval between the top bead and the base is at least formed on the bottom face of the front side of the upper shell, and the guide face gradually inclines backwards from top to bottom.

Description

Technical Field

[0001] The utility model relates to an oil collecting device, in particular to an oil cup mounting structure and a range hood with the oil cup mounting structure. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Range hoods work based on the principle of fluid dynamics. A centrifugal fan installed inside the range hood absorbs and exhausts oil smoke, and uses a filter to filter out some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute, and a motor that drives the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, sucking the oil smoke under the range hood into the fan. After being accelerated by the fan, it is collected by the volute and guided to be discharged outdoors.

[0003] In the process of exhausting the oil smoke airflow from the range hood, most of the grease will be separated. Therefore, an oil collection cup is often installed at the bottom of the smoke hood of the range hood to collect the separated grease and dispose of it when it reaches a certain amount. For example, the Chinese patent application number 202022321804.5 of the applicant discloses an oil cup installation structure, including an oil cup and an oil cup installation assembly. The oil cup includes a cup body with an open upper end and folded edges arranged on the left and right sides of the upper end of the body. Each folded edge is formed by bending one end of the cup body toward the middle. The oil cup installation assembly includes a base, an upper shell and a top bead. The top bead is at least partially placed in the upper shell and maintains a tendency to pass through the upper shell and approach the base. A gap for cooperating with the oil cup is formed between the end face of the top bead facing the base and the surface of the base facing the upper shell. The folded edge can be inserted into the gap between the top bead and the base. The gap between the top bead and the base is less than the thickness of the folded edge of the oil cup.

[0004] This oil cup installation structure can ensure that the oil cup installation component has a good clamping force on the oil cup, the installation consistency on both sides and good stability during use. However, in this installation structure, the oil cup installation component cannot guide the insertion of the oil cup fold during installation, and the fold encounters a large resistance when contacting with the oil cup installation component. During installation, the top bead is lifted by the oil cup fold, and the lowest surface of the top bead is likely to be higher than the bottom surface of the base and the top bead adjacent to the top bead, which causes the top bead to tilt and cause the installation to become stuck; in addition, since the smoke hood of the range hood is generally about 1.5m from the ground, some people will not be able to see the oil cup when standing in front of the range hood. Therefore, in the process of disassembling and assembling the oil cup, the body needs to be twisted, and it is easy for one end to fall off on both sides and the other end is still on the oil cup hook. Since the oil cup is a sheet metal part, it is easy to deform. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide an oil cup installation structure for the above-mentioned deficiencies in the prior art, which can guide the oil cup during installation so as to facilitate quick installation.

[0006] The second technical problem to be solved by the present invention is to provide an oil cup installation structure to reduce installation resistance in view of the deficiencies in the above-mentioned prior art.

[0007] The third technical problem to be solved by the present invention is to provide an oil cup installation structure in view of the deficiencies in the above-mentioned prior art, which can be observed during installation to facilitate the operation in the initial stage of installation.

[0008] The fourth technical problem to be solved by the present invention is to provide an oil cup installation structure to prevent the top bead from tipping over and improve the smoothness of installation in view of the deficiencies in the above-mentioned prior art.

[0009] The fifth technical problem to be solved by the utility model is to provide a range hood with the above oil cup mounting structure.

[0010] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: an oil cup installation structure, comprising:

[0011] An oil cup, comprising a cup body with an open upper end and folded edges arranged at both ends of the upper end of the cup body in the length direction, each folded edge being formed by bending one end of the cup body toward the middle; and

[0012] An oil cup mounting assembly comprises a base, an upper shell and a top bead, wherein the top bead is at least partially disposed in the upper shell and maintains a tendency to pass through the upper shell and approach the base, a gap for cooperating with a folded edge of the oil cup is formed between an end surface of the top bead facing the base and a surface of the base facing the upper shell, and the gap between the top bead and the base is smaller than the thickness of the folded edge of the oil cup; the characteristics are:

[0013] Taking the propulsion direction when the oil cup is installed as from front to rear, the upper shell is formed with a guide surface for guiding the folded edge to the interval between the top bead and the base at least on the front bottom surface, and the guide surface is gradually inclined backward from top to bottom.

[0014] By setting a guide surface, when the folded edge of the oil cup is pushed backward to contact the oil cup mounting assembly, it can gradually slide to the gap between the top bead and the base under the guidance of the guide surface without the user having to keep an eye on it all the time, which facilitates quick installation and blind installation.

[0015] Preferably, the upper shell includes a bottom plate, which is divided into a first part and a second part, a gap is formed between the first part and the base, the top bead passes through the first part, the second part and the base are fixed, and the guide surface is formed on the bottom surface of the first part.

[0016] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: the rear side edge of the folded edge is formed as a bevel, and the bevel gradually tilts forward from the corresponding end of the cup body toward the direction of the other folded edge. Therefore, during installation, as the oil cup is advanced, the bevel and the top bead of the oil cup mounting assembly are contacted step by step and are point contact, thereby reducing the resistance during the installation process.

[0017] The technical solution adopted by the utility model to solve the third technical problem mentioned above is: the cup body of the oil cup is lower than the part corresponding to the folded edge at the part located in front of the folded edge, so that the left and right side surfaces and the front side of the cup body of the oil cup are recessed downward at the part located in front of the folded edge, thereby making it easy to see the oil cup installation assembly during installation, thereby facilitating installation.

[0018] In order to increase the friction when holding the oil cup and prevent the oil cup from falling, convex bulges are formed on the outer wall surfaces on both sides of the cup body in the length direction of the oil cup.

[0019] Preferably, the convex hull extends gradually from top to bottom in a curved manner.

[0020] Furthermore, the top ball has a first V-shaped surface extending gradually upward and tilted forward and backward from the middle position of the bottom surface of the base. The guiding effect of the first V-shaped surface can better convert the horizontal thrust of the oil cup into a vertical compression force on the elastic member, thereby ensuring smooth disassembly and assembly of the oil cup.

[0021] The technical solution adopted by the utility model to solve the fourth technical problem mentioned above is as follows: the top ball includes a top ball body and a first boss formed on the side of the top ball body, and a gap that cooperates with the folded edge of the oil cup is formed between the top ball body and the base; a stopper is also formed in the upper shell body, and the stopper has a transverse portion extending laterally, the first boss is supported on the transverse portion, the maximum thickness of the folded edge is d1, and in the initial state when the oil cup is not installed, the height difference between the top surface of the transverse portion of the stopper and the bottom surface of the top ball body in the vertical direction is d2, and d2>d1 is satisfied.

[0022] Therefore, during the installation process, when the insertion of the folded edge pushes the top bead upward, even at the highest position of the top bead, the bottom surface of the top bead will not be higher than the lateral part of the stopper, so that the top bead always abuts against the stopper and will not fall over.

[0023] Furthermore, the top bead further comprises a second protrusion, the second protrusion and the first protrusion are located on opposite sides of the top bead body, the side of the second protrusion away from the top bead body abuts against a corresponding position in the upper shell, the stopper further comprises a longitudinal portion extending downward from the end of the transverse portion close to the top bead body, the top bead body abuts against the longitudinal portion, thereby limiting the transverse position of the top bead and preventing it from moving transversely.

[0024] Furthermore, the bottom surface of the second boss is a second V-shaped surface extending gradually upward and tilted forward and backward from the middle position, and a V-shaped groove is provided in the upper shell at a position corresponding to the second boss, and each supporting surface of the V-shaped groove is consistent with the second V-shaped surface. As a result, the top bead is installed at a lower position, reducing the compression of the elastic member and facilitating installation.

[0025] Preferably, in order to maintain the tendency of the top ball to approach the base, the upper shell includes a bottom plate arranged close to the base and a protrusion protruding from a side of the bottom plate away from the base in a direction away from the base, and the protrusion is hollow. The oil cup mounting assembly also includes an elastic member arranged in the protrusion, one end of the elastic member abuts against the inner side of the top ball and the other end abuts against the top of the inner side of the protrusion away from the bottom plate, so that the top ball maintains the tendency to pass through the upper shell and approach the base.

[0026] The technical solution adopted by the utility model to solve the fifth technical problem mentioned above is: a range hood with an oil cup mounting structure as described above, including a range hood body as an external mounting base, characterized in that: the upper shell part passes through the bottom surface of the range hood body and enters the range hood body upward.

[0027] Compared with the prior art, the utility model has the following advantages: by providing a guide surface, when the folded edge of the oil cup is pushed backward to contact the oil cup mounting assembly, it can gradually slide to the gap between the top bead and the base under the guidance of the guide surface, without the need for the user to keep observing all the time, which is convenient for quick installation and blind installation; by forming the rear side of the folded edge into a bevel, during installation, as the oil cup is pushed forward, the bevel and the top bead of the oil cup mounting assembly are contacted step by step and in point contact, thereby reducing the resistance during installation; by making the front side and the left and right sides of the oil cup concave, it is convenient to see the oil cup mounting assembly during installation, thereby facilitating installation; by providing convex humps on the left and right sides of the oil cup, the friction force when holding the oil cup can be increased to prevent the oil cup from falling; by limiting the positional relationship between the bottom surface of the top bead and the stopper, during installation, when the insertion of the folded edge pushes the top bead upward, even at the highest position of the top bead, the bottom surface of the top bead will not be higher than the lateral part of the stopper, so that the top bead always contacts the stopper and will not fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a range hood according to an embodiment of the utility model;

[0029] Figure 2 A side view of a range hood according to an embodiment of the utility model;

[0030] Figure 3 It is a schematic diagram of the oil cup installation structure of the range hood according to an embodiment of the utility model;

[0031] Figure 4 for Figure 3 A schematic diagram of the partial enlargement of Ⅰ;

[0032] Figure 5 A schematic diagram of an oil cup of a range hood according to an embodiment of the utility model;

[0033] Figure 6 for Figure 5 A partial II enlarged schematic diagram of

[0034] Figure 7 It is a partial cross-sectional view of the oil cup mounting structure of the range hood according to an embodiment of the utility model;

[0035] Figure 8 A schematic diagram of an oil cup mounting assembly of an oil cup mounting structure of a range hood according to an embodiment of the utility model;

[0036] Fig. 9 It is a schematic diagram of the exploded structure of the oil cup mounting assembly of the oil cup mounting structure of the range hood according to the embodiment of the utility model;

[0037] Fig.10 A cross-sectional view of an upper shell and a base of an oil cup mounting assembly of an oil cup mounting structure of a range hood according to an embodiment of the utility model;

[0038] Fig.11 It is a schematic diagram of a top bead of an oil cup mounting assembly of an oil cup mounting structure of a range hood according to an embodiment of the utility model. DETAILED DESCRIPTION

[0039] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0040] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0041] See also Figure 1 to Figure 6 A range hood includes a range hood body 1, an oil cup 2 disposed at the rear bottom of the range hood body 1, and an oil cup mounting assembly 3 connecting the oil cup 2 and the range hood body 1. The oil cup 2 and the oil cup mounting assembly 3 constitute an oil cup mounting structure.

[0042] In this embodiment, it is a top suction range hood, the range hood body 1 includes a fume hood 11 and a fan frame 12 arranged above the fume hood 11, the fan frame 12 is used to set a fan system (not shown), and the above-mentioned oil cup 2 is arranged at the rear bottom of the fume hood 11. There are two oil cup mounting assemblies 3, which are respectively arranged on the left and right sides of the bottom of the fume hood 11.

[0043] The oil cup 2 includes a cup body 21 with an open top and folded edges 22 arranged at the left and right ends of the upper end of the cup body 21 (i.e., the two ends in the length direction of the cup body 21). The left folded edge 22 is formed by bending the left end surface of the cup body 21 to the right, and the right folded edge 22 is formed by bending the right end surface of the cup body 21 to the left. A notch or hole 221 is provided on the folded edge 22 of the oil cup 2. The rear side of the folded edge 22 is formed as a bevel 222, which gradually tilts forward (from the front to the back in the direction of the advancement direction of the oil cup 2 when installing) from the corresponding end of the cup body 21 to the other bevel 22, and the tilt angle can preferably be 11°, so that during installation, as the oil cup 2 is advanced, the bevel 222 contacts the top bead 34 (described in detail below) of the oil cup installation assembly 3 step by step and is point contact, thereby reducing the resistance during the installation process.

[0044] The left and right outer walls of the cup body 21 of the oil cup 2 are both formed with convex bumps 23, and the convex bumps 23 can preferably be gradually curved and extended forward from top to bottom, with the upper end thereof convexly protruding upward in an arc shape, and the lower end thereof convexly protruding downward in an arc shape. By providing the convex bumps 23, the friction force can be increased, making it easier for the user to take the oil cup 2 when disassembling it.

[0045] The portion of the cup body 21 of the oil cup 2 located in front of the folded edge 22 is lower than the portion corresponding to the folded edge 22. Figure 2 As shown, the left and right side surfaces and the front side of the cup body 21 of the oil cup 2 are recessed downward at the front side of the folded edge 22, thereby making it easy to see the oil cup mounting assembly 3 during installation, thereby facilitating installation.

[0046] See also Figure 3 , Figure 4 , Figure 7 to Figure 11 The oil cup hook assembly 3 includes a base 31, an upper shell 32, an elastic member 33, and a top bead 34. The upper shell 32 is fixed on the base 31. The upper shell 32 includes a bottom plate 321. Along the length direction of the oil cup 2, the bottom plate 321 of the upper shell 32 can be divided into a first part 3211 for mounting the folded edge 22 of the oil cup 2 and a second part 3212 for mounting with the base 31. The first part 3211 and the second part 3212 are integrated and arranged along the length direction of the oil cup 2. There is a gap between the first part 3211 of the bottom plate 321 and the base 31, into which the folded edge 22 of the oil cup 2 can be inserted. Among them, the side of the first part 3211 of the bottom plate 321 away from the base 31 is convex in the direction away from the base 31, that is, upwardly protruding to form a protrusion 322, and the second part 3212 is provided with a nut 328. The screw 328 can be used to pass through the base 31 and the nut 328, so as to fix the upper shell 32 and the base 31.

[0047] The protrusion 322 is hollow and closed at the top. The top bead 34 extends downward from the protrusion 322 to the bottom of the bottom plate 321 and is opposite to the upper surface of the base 31. The protrusion 322 of the upper shell 32 can be inserted into the smoke hood 11 from the bottom surface of the range hood body 1 (i.e., the bottom surface of the smoke hood 11) and fixed to the smoke hood 11. In the uninstalled state, the distance between the bottom surface of the top bead 34 and the upper surface of the base 31 is less than the thickness of the folded edge 22 of the oil cup 2, so as to ensure that the folded edge 22 can be pressed by the top bead 34 after being inserted between the bottom surface of the top bead 34 and the upper surface of the base 31. The bottom surface of the first part 3211 of the bottom plate 321 of the upper shell 32 is formed with a guide surface 323, and the guide surface 323 is formed at least on the front side of the bottom surface of the bottom plate 321, i.e., the part that the oil cup 2 first contacts when it is installed. The guide surface 323 gradually tilts backward from top to bottom. Considering the versatility of the components, a guide surface 323 may also be formed on the rear side of the bottom surface of the bottom plate 321, and the guide surface 323 gradually tilts backward from bottom to top, so that the oil cup mounting assembly 3 can be used for both left and right applications.

[0048] The elastic member 33 is preferably a spring, which is arranged in the protrusion 322. The protrusion 322 limits the elastic member 33. The lower end of the elastic member 33 abuts against the top bead 34, and the upper end abuts against the top of the inner side of the protrusion 322, so that the top bead 34 maintains a tendency to be exposed downward from the bottom plate 321.

[0049] The upper shell 32 further includes an opening 324, which is partially located on the side of the protrusion 322 adjacent to the second portion 3212 of the base 321, and partially located on the first portion 3211 of the bottom plate 321, so that the top ball 34 and the elastic member 33 can be installed in the protrusion 322. A buckle 325 for limiting the elastic member 33 is provided at the top of the inner side of the protrusion 322, and the buckle 325 has a guide slope 3251 that gradually slopes downward in a direction away from the opening 324 of the protrusion 322 on the side facing the opening 324 of the protrusion 322, and a clamping groove 3252 is formed on the side of the guide slope 3251 away from the opening 324, which is concave toward the top to form the buckle 325. The elastic member 33 can be pushed in from the opening 324 along the guide slope 3251 of the buckle 325. When it is pushed in at the beginning, the elastic member 33 is gradually compressed downward by the pressure of the buckle 325. After sliding through the buckle 325, it bounces upward under the resetting action of the elastic force, abuts against the inner top of the protrusion 322, and finally makes the part corresponding to the guide slope 3251 of the buckle 325 get stuck in the elastic member 33, and the elastic member 33 is partially stuck in the groove 3252. As a result, the upper end of the elastic member 33 is limited and fixed in the protrusion 322 by the buckle 325.

[0050] The top ball 34 includes a top ball body 341, a first boss 342 and a second boss 343. The bottom surface of the top ball body 341 is used to cooperate with the folded edge 22 of the oil cup 2. It has a first V-shaped surface 3411 extending gradually upward and tilted forward and backward in the middle position. The guiding effect of the first V-shaped surface 3411 can better convert the horizontal thrust of the oil cup 2 into a vertical compression force on the elastic member 33, thereby ensuring smooth disassembly and assembly of the oil cup 2.

[0051] The second protrusion 343 and the first protrusion 342 are located on opposite sides of the top ball body 341, wherein the second protrusion 343 corresponds to the side of the top ball body 341 away from the opening 324, and the first protrusion 342 corresponds to the side of the top ball body 341 facing the opening 324. The bottom surface of the second protrusion 343 is similar to the bottom surface of the top ball body 341, and is a second V-shaped surface 3431 extending gradually upward and tilted forward and backward in the middle position, and the second V-shaped surface 3431 is used to support the bottom plate 321 of the upper shell 32. The second V-shaped surface 3431 is higher than the first V-shaped surface 3411. In the present utility model, although the above two surfaces are called V-shaped surfaces, they both have a certain plane at the end of the V-shaped surface, so that they have a certain support force and can maintain balance. In order to ensure the convenience of installation of the top bead 34 and the elastic member 33, a V-shaped groove 326 is provided on the bottom plate 321 of the upper shell 32 at a position corresponding to the second convex column 343, and each supporting surface of the V-shaped groove 326 is consistent with the second V-shaped surface 3431. As a result, the top bead 34 is installed at a lower position, reducing the compression of the elastic member 33 and facilitating installation. The side of the second convex column 343 away from the top bead body 341 abuts against the corresponding position of the bottom plate 321, such as Figure 7 The left side wall of the bottom plate 321 is shown in FIG.

[0052] A stopper 327 is also formed at a position of the upper shell 32 corresponding to the opening 324, and at least part of the stopper 327 extends into the protrusion 322. The first boss 342 can be supported on the stopper 327. When the elastic member 33 is in a free state, the bottom surface of the first boss 342 can be in close contact with the top surface of the stopper 327. The stopper 327 is L-shaped, and has a longitudinal portion 3271 (extending up and down) that is in close contact with the top ball body 341 and a transverse portion 3272 (extending transversely, preferably extending horizontally) that supports the first boss 342. The longitudinal portion 3271 is formed by the end of the transverse portion 3272 close to the top ball body 341 extending downward.

[0053] Therefore, through the abutment and cooperation between the second protrusion 343 and the bottom plate 321, and the abutment and cooperation between the top ball body 341 and the stopper 327, the top ball 34 is restricted to move only up and down, but not left and right.

[0054] The maximum thickness of the folded edge 22 is d1. In the initial state (also in the installed state), the height difference along the vertical direction between the top surface of the transverse portion 3272 of the stop portion 327 and the bottom surface of the top ball body 341 is d2. In order to prevent the top ball 34 from tipping over in the upper shell 321, it is necessary to satisfy d2>d1. Therefore, during the installation process, when the insertion of the folded edge 22 pushes the top ball 34 upward, even at the highest position of the top ball 34, the bottom surface of the top ball 34 will not be higher than the transverse portion 3272 of the stop portion 327, so that the top ball 34 is always in contact with the stop portion 327 and will not tip over.

[0055] When installing the oil cup 2, the oil cup 2 is pushed from front to back for installation, and the folded edge 22 will first contact the guide surface 323 of the upper shell 32. Under the guidance of the guide surface 323, the folded edge 22 can smoothly enter the gap between the upper shell 32 and the base 31; thereafter, the rear side inclined surface 222 of the folded edge 22 of the oil cup 2 first contacts the bottom surface of the top bead 34 (the bottom of the first V-shaped surface 3411), the elastic member 33 is compressed, and the top bead 34 is lifted up; the oil cup 2 continues to be pushed forward, and when the notch 221 (or hole 221) on the folded edge 22 reaches the position of the top bead 34, under the action of the elastic member 33, the top bead 34 moves downward and the lower end is embedded in the notch 221 (or hole 221), and the notch 221 (or hole 221) is used to limit the oil cup 2, which can provide obvious force feedback, uniform installation resistance, and complete assembly.

Claims

1. An oil cup mounting structure, comprising: The oil cup (2) comprises a cup body (21) with an open upper end and folded edges (22) arranged at both ends of the upper end of the cup body (21) in the length direction, each folded edge (22) being formed by bending one end of the cup body (21) toward the middle; and An oil cup mounting assembly (3) comprises a base (31), an upper shell (32) and a top ball (34), wherein the top ball (34) is at least partially disposed in the upper shell (32) and maintains a tendency to pass through the upper shell (32) and approach the base (31), and a gap is formed between an end surface of the top ball (34) facing the base (31) and a surface of the base (31) facing the upper shell (32) for cooperating with a folded edge (22) of the oil cup (2), and the gap between the top ball (34) and the base (31) is smaller than the thickness of the folded edge (22) of the oil cup (2); the characteristics are: Taking the propulsion direction when the oil cup (2) is installed as from front to rear, the upper shell (32) is formed with a guide surface (323) at least on the front bottom surface for guiding the folded edge (22) to the interval between the top bead (34) and the base (31), and the guide surface (323) is gradually inclined backward from top to bottom.

2. The oil cup mounting structure according to claim 1, characterized in that: The upper shell (32) includes a bottom plate (321), and the bottom plate (321) is divided into a first part (3211) and a second part (3212). A gap is formed between the first part (3211) and the base (31), and the top ball (34) passes through the first part (3211). The second part (3212) and the base (31) are fixed, and the guide surface (323) is formed on the bottom surface of the first part (3211).

3. The oil cup mounting structure according to claim 1, characterized in that: The rear side of the folded edge (22) is formed as a bevel (222), and the bevel (222) gradually inclines forward from the corresponding end of the cup body (21) toward the direction of the other folded edge (22).

4. The oil cup mounting structure according to claim 1, characterized in that: The portion of the cup body (21) of the oil cup (2) located in front of the folded edge (22) is lower than the portion corresponding to the folded edge (22).

5. The oil cup mounting structure according to claim 1, characterized in that: Convex humps (23) are formed on the outer wall surfaces of both sides of the cup body (21) in the length direction of the oil cup (2).

6. The oil cup mounting structure according to claim 5, characterized in that: The convex bump (23) extends gradually from top to bottom in a curved manner.

7. The oil cup mounting structure according to claim 1, characterized in that: The top bead (34) has a first V-shaped surface (3411) which extends gradually upward and tilted forward and backward at a middle position toward the bottom surface of the base (31).

8. The oil cup mounting structure according to claim 1, characterized in that: The top ball (34) comprises a top ball body (341) and a first protrusion (342) formed on a side of the top ball body (341); a gap matched with the folded edge (22) of the oil cup (2) is formed between the top ball body (341) and the base (31); a stopper (327) is further formed in the upper shell (32); the stopper (327) has a transverse portion (3272) extending laterally; the first protrusion (342) is supported on the transverse portion (3272); the maximum thickness of the folded edge (22) is d1; in an initial state where the oil cup (2) is not installed, a height difference between a top surface of the transverse portion (3272) of the stopper (327) and a bottom surface of the top ball body (341) in a vertical direction is d2, and d2>d1 is satisfied.

9. The oil cup mounting structure according to claim 8, characterized in that: The top ball (34) further includes a second boss (343), wherein the second boss (343) and the first boss (342) are located on opposite sides of the top ball body (341), and the side of the second boss (343) away from the top ball body (341) abuts against a corresponding position in the upper shell (32), and the stopper (327) further includes a longitudinal portion (3271) extending downward from the end of the transverse portion (3272) close to the top ball body (341), and the top ball body (341) abuts against the longitudinal portion (3271).

10. The oil cup mounting structure according to claim 9, characterized in that: The bottom surface of the second convex column (343) is a second V-shaped surface (3431) extending gradually upward and tilted forward and backward from the middle position, and a V-shaped groove (326) is provided in the upper shell (32) at a position corresponding to the second convex column (343), and each supporting surface of the V-shaped groove (326) is consistent with the above-mentioned second V-shaped surface (3431).

11. The oil cup mounting structure according to claim 1, characterized in that: The upper shell (32) comprises a bottom plate (321) arranged close to the base (31) and a protrusion (322) protruding from a side of the bottom plate (321) away from the base (31) in a direction away from the base (31), wherein the protrusion (322) is hollow, and the oil cup mounting assembly (3) further comprises an elastic member (33) arranged in the protrusion (322), wherein one end of the elastic member (33) abuts against the inner side of the top bead (34) and the other end abuts against the top of the inner side of the protrusion (322) away from the bottom plate (321), thereby allowing the top bead (34) to maintain a tendency to pass through the upper shell (32) and approach the base (31).

12. A range hood using the oil cup mounting structure according to any one of claims 1 to 11, comprising a range hood body (1) as an external mounting base, characterized in that: The upper shell (32) partially passes through the bottom surface of the range hood body (1) and enters the range hood body (1) upwards.

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