Oil net assembly and range hood thereof

Abstract

The present invention discloses an oil net assembly and a range hood thereof, comprising: an oil ring mechanism; a first locking mechanism, movably arranged on the oil ring mechanism, for detachably connecting the smoke hood; an oil net, arranged above the oil ring mechanism, the oil net being detachably connected to the oil ring mechanism through the first locking mechanism; a locking member, movably arranged on the oil ring mechanism or the first locking mechanism, the first locking mechanism and the oil ring mechanism being locked or unlocked through the locking member. In the oil net assembly of the present invention, the oil net is easy and quick to disassemble and assemble, and is convenient to be removed and cleaned, while preventing the oil net from falling due to the activity of the first locking mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to an oil net assembly and a range hood thereof. Background Art

[0002] Some range hood filters on the market are connected to the smoke hood by quick-release, and the quick-release structure generally adopts a bead structure, which is installed on the inside of the smoke hood. However, for range hoods with an oil ring structure, only the oil ring can be quickly released, and the filter is still fixed to the smoke hood with screws, which does not achieve true oil net quick release. It is inconvenient to remove and clean after use, which affects the user experience. Summary of the invention

[0003] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes an oil screen assembly, which is easy and quick to assemble and disassemble, and convenient to remove and clean, while preventing the oil screen from falling due to the activity of the first locking mechanism.

[0004] The invention also provides a range hood having the oil net assembly.

[0005] According to the above-mentioned oil screen assembly, it is realized by the following technical solution:

[0006] An oil net assembly comprises: an oil ring mechanism; a first locking mechanism, movably arranged on the oil ring mechanism and used for detachably connecting a smoke hood; an oil net, arranged above the oil ring mechanism, the oil net being detachably connected to the oil ring mechanism via the first locking mechanism; a locking member, movably arranged on the oil ring mechanism or the first locking mechanism, the first locking mechanism and the oil ring mechanism being locked or unlocked via the locking member.

[0007] In some embodiments, the oil ring mechanism is provided with a limiting portion arranged near the first locking mechanism; the locking member can be movably mounted on the outer surface of the first locking mechanism, and a locking portion is provided at the lower end or bottom of the side wall of the locking member, and the locking portion is inserted into the limiting portion.

[0008] In some embodiments, the limiting portion is a limiting groove opening toward the first locking mechanism, the locking piece is movably mounted on the outer surface of the first locking mechanism up and down, the locking portion is inserted into the limiting groove, and the locking piece is connected to the first locking mechanism via a positioning structure.

[0009] In some embodiments, the positioning structure includes positioning ribs and a latching position, at least one of the latching positions is respectively provided on the two opposite side walls of the first locking mechanism, and the locking member is correspondingly provided with the positioning rib facing the first locking mechanism, and the positioning rib selectively latches the latching position.

[0010] In some embodiments, the oil ring mechanism includes an annular oil receiving ring and a base. The oil receiving ring is arranged at the bottom of the oil net and is used to receive the oil net. The base is installed on the top of the oil receiving ring and is located outside the oil net. The limiting portion is provided on the base.

[0011] In some embodiments, the oil ring mechanism further includes a bracket, the bracket is fixed to the top of the oil receiving ring, and the base is detachably connected to the oil receiving ring via the bracket.

[0012] In some embodiments, the first locking mechanism is rotatably disposed outside the oil net, and the first locking mechanism is provided with a paddle for limiting the up and down movement of the oil net, and the paddle can be rotated between above the lower edge of the oil net and outside the oil net to lock or unlock the oil net and the oil ring mechanism.

[0013] In some embodiments, a flange extending upward is provided on the circumference of the lower edge of the oil net, and a notch is provided on the flange at a position corresponding to the position of the paddle. The notch is matched with the paddle, and the paddle is selectively inserted into the notch.

[0014] In some embodiments, the oil ring mechanism is provided with a rotation groove at a position corresponding to the paddle, the rotation groove cooperates with the paddle to limit the rotation angle of the paddle, and the paddle is rotatably disposed in the rotation groove.

[0015] According to the above-mentioned oil screen assembly, it is realized by the following technical solution:

[0016] A range hood comprises: a smoke collecting hood, provided with an air inlet for smoke to pass through and a mounting port located outside the air inlet; a second locking mechanism, arranged at the mounting port; an oil net assembly as described above, wherein the oil net assembly is arranged at the air inlet, and the first locking mechanism is detachably connected to the second locking mechanism.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. The oil net assembly of the present invention sets the oil net on the top of the oil ring structure, and through the first locking mechanism, the oil net is detachably connected to the oil ring structure, ensuring that the oil net is stably and reliably installed on the oil ring structure. At the same time, the disassembly and assembly are simple and fast, and the oil net is convenient to be removed and cleaned. In addition, it is convenient to quickly disassemble and assemble the oil net assembly as a whole to the smoke hood;

[0019] 2. By adding a movable locking member to the oil ring mechanism or the first locking mechanism, the first locking mechanism and the oil ring mechanism can be locked or unlocked through the locking member, thereby limiting the movement of the first locking mechanism through the locking member, avoiding the oil net from falling due to the movement of the first locking mechanism, and further ensuring that the oil net is installed firmly and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the oil screen assembly in Example 1 of the present invention;

[0021] Figure 2 is a cross-sectional view of the oil screen assembly in Example 1 of the present invention;

[0022] Figure 3 is an exploded view of the oil screen assembly in Example 1 of the present invention;

[0023] Figure 4 is a schematic structural diagram of a locking member, a base and a part of an oil ring mechanism in Embodiment 1 of the present invention;

[0024] Figure 5 is a schematic structural diagram of a base in Embodiment 1 of the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the bracket in Example 1 of the present invention;

[0026] Figure 7 is a schematic structural diagram of the male lock buckle in Embodiment 1 of the present invention;

[0027] Figure 8 is a schematic structural diagram of a locking member in Embodiment 1 of the present invention;

[0028] Fig. 9 is an exploded view of the oil screen assembly, the fume hood and the second locking mechanism in Example 2 of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the oil screen assembly, the fume hood and the second locking mechanism in Embodiment 2 of the present invention;

[0030] Fig.11 It is a structural schematic diagram of the second locking mechanism in Example 2 of the present invention.

[0031] Reference numerals: oil ring mechanism 1, center hole 101, limiting groove 102, rotation groove 103, oil receiving ring 11, annular groove 110, oil leakage hole 112, hook 113, base 12, through hole 121, screw hole 122, bracket 13, recessed portion 131, connecting section 132, boss 1321, fixing hole 1322;

[0032] First locking mechanism 2, latching position 201, paddle 202, male locking buckle 21, connecting hole 211, fastener 22;

[0033] Oil screen 3, flange 31, notch 32, oil collecting groove 33, oil drain hole 34;

[0034] Locking member 4, locking portion 41, positioning rib 42, anti-slip portion 43;

[0035] Fume hood 5, air inlet 501, mounting port 502, oil net sink 503, hook hole 504;

[0036] The second locking mechanism 6 , the fixing seat 61 , the opening 611 , the marble structure 62 , and the stopper 621 . DETAILED DESCRIPTION

[0037] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0038] Example 1

[0039] refer to Figure 1-3 , this embodiment provides an oil net assembly, which is applied to a range hood. The oil net assembly includes an oil ring mechanism 1, a first locking mechanism 2, an oil net 3 and a locking member 4, wherein the oil ring mechanism 1 is an annular structure to form a central hole 101 for smoke to pass through. The oil ring structure 1 is arranged at the bottom of the oil net 3, and is used to receive the oil net 3, and is also used to collect the oil stains flowing from the oil net 3, and collect the oil stains on the oil cup of the range hood. The first locking mechanism 2 is rotatably arranged on the oil ring mechanism 1 and located outside the oil net 3, and is used to detachably connect the smoke hood of the range hood. Through the first locking mechanism 2, the oil net 3 can be detachably connected to the oil ring mechanism 1. Therefore, through the first locking mechanism 2, the oil net 3 is locked to the oil ring mechanism 1 or the oil net 3 is unlocked from the oil ring mechanism 1, ensuring that the oil net 3 is installed firmly and reliably, and the disassembly and assembly are simple and quick, which is convenient for the oil net 3 to be removed and cleaned, and the oil net assembly as a whole can be quickly disassembled and assembled on the smoke hood.

[0040] The locking member 4 is movably arranged on the oil ring mechanism 1 or the first locking mechanism 2, and the first locking mechanism 2 and the oil ring mechanism 1 are locked or unlocked by the locking member 4. Therefore, through the locking member 4, the first locking mechanism 2 is firmly and reliably locked to the oil ring mechanism 1, so as to limit the movement of the first locking mechanism 2, avoid the oil net 3 from falling due to the movement of the first locking mechanism 2, and further ensure the stable and reliable installation of the oil net 3; secondly, the first locking mechanism 2 and the oil ring mechanism 1 are unlocked, so that the first locking mechanism 2 can rotate relative to the oil ring mechanism 1, so that the oil net 3 and the oil ring mechanism 1 can be unlocked by rotating the first locking mechanism 2, ensuring that the oil net 3 can be separated from the oil ring mechanism 1, and the oil net 3 can be quickly removed and cleaned.

[0041] refer to Figure 3 Furthermore, the oil ring mechanism 1 includes an annular oil receiving ring 11, a central hole 101 for smoke to pass through is formed at the center of the oil receiving ring 11, and the oil receiving ring 11 is arranged at the bottom of the oil net 3 and is used to receive the oil net 3. In this embodiment, the inner and outer sides of the oil receiving ring 11 in the radial direction are bent upward to form a folded edge (not shown in the figure), and the inner and outer folded edges and the oil receiving ring 11 are surrounded to form an annular groove 110 that opens upward, and two oil leakage holes 112 are arranged at intervals in the left and right directions at the rear side of the oil receiving ring 11, and the upper end of each oil leakage hole 112 is connected to the annular groove 110, and the lower end is used to connect to the oil cup of the range hood.

[0042] In addition, two hooks 113 are provided on the rear side of the oil receiving ring 11, which are arranged at intervals in the left-right direction and extend backward, and each hook 113 is suitable for being hooked with the hook hole of the smoke hood to form two rear connection points. The first locking mechanism 2 is movably arranged in the middle of the front side of the oil receiving ring 11 and is located in the annular groove 110, and is used to be detachably connected with the second locking mechanism fixed in the smoke hood to form a front connection point. Thus, through the two rear connection points and one front connection point, the oil receiving ring 11 and the entire oil net assembly are more firmly and reliably connected to the smoke hood, and are convenient for quick removal and cleaning. In other embodiments, the two hooks 113 can be replaced by the second locking mechanism 2, and correspondingly, the hook hole of the smoke hood is replaced by a second locking mechanism suitable for cooperating with the first locking mechanism 2.

[0043] refer to Figure 3-5 Furthermore, the oil ring mechanism 1 also includes a base 12, which is detachably mounted on the middle of the top front side of the oil receiving ring 11 by screws. The base 12 is located in the annular groove 110 and on the front outer side of the oil net 3, and is used to flexibly connect the first locking mechanism 2 and limit the locking member 4. In this embodiment, the base 12 is in an inverted "concave" shape, and a through hole 121 located at the center and two screw holes 122 located on the left and right outer sides of the center hole 121 are provided on the top of the base 12. The lower end of the first locking mechanism 2 is movably set at the through hole 121, and two screws are used to penetrate the corresponding screw holes 122 from top to bottom and then fasten and connect the oil receiving ring 11. In this way, the first locking mechanism 2 is movably mounted on the oil receiving ring 11 through the base 12.

[0044] In this embodiment, a limiting groove 102 is further provided at the top of the base 12 and is located in front of the through hole 121. The limiting groove 102 constitutes a limiting portion and is used to limit the locking member 4. A rotation groove 103 is further provided at the top of the base 12 and is located above the through hole 121 and is open upward. The area of ​​the rotation groove 103 is larger than the area of ​​the through hole 121. The front side of the rotation groove 103 is connected to the limiting groove 102, and the rear side extends backward to the upper end of the top rear wall that penetrates the base 12, so that the rotation groove 103 has an opening open toward the oil net 3, which is used for the first locking mechanism 2 to rotate. At the same time, the two opposite groove walls of the rotation groove 103 close to the oil net 3 are used to limit the rotation angle of the paddle 202 of the first locking mechanism 2.

[0045] refer to Figure 4-6 Furthermore, the oil ring mechanism 1 further includes a bracket 13, which is located in the base 12 and is fixed to the top of the oil receiving ring 11 by welding, riveting or bonding. The base 12 is detachably connected to the bracket 13 by two screws. Thus, the base 12 and the oil receiving ring 11 are detachably connected by the bracket 13 and the two screws. Since the bracket 13 is directly fixed to the top of the oil receiving ring 11, it is ensured that there are no screws on the bottom surface of the oil receiving ring 11, thereby improving the aesthetics.

[0046] In this embodiment, the bracket 13 includes a connecting plate (not shown in the figure), and the middle section of the connecting plate in the length direction is integrally stamped downward to form a recessed portion 131. The bottom surface of the recessed portion 131 is fixed to the top surface of the oil receiving ring 11 by welding or riveting and is located in the annular groove 110 to achieve the fixation of the bracket 13. The section of the connecting plate located on the two opposite sides of the recessed portion 131 is a connecting section 132. A boss 1321 extending downward is integrally formed at the position corresponding to the screw hole 122 on the bottom surface of each connecting section 132 to enhance the strength of the connecting section 132. In addition, each connecting section 132 is also provided with a fixing hole 1322 that sequentially passes through it and the boss 1321, and the fixing hole 1322 is used to fasten the corresponding screw.

[0047] refer to Figure 2-4 and Figure 7 Further, the first locking mechanism 2 includes a male locking buckle 21 and a fastener 22. The male locking buckle 21 is arranged on the top of the base 12 and its lower end is movably inserted into the rotation groove 103. The male locking buckle 21 is provided with a connecting hole 211 opening toward the center hole 121. The fastener 22 is preferably a screw or a rivet, which is arranged in the recessed portion 131, and its upper end is movably inserted into the center hole 121 and the connecting hole 211 in sequence and fastened to the male locking buckle 21. In this way, through the fastener 22, the male locking buckle 21 is reliably installed on the base 12, and it is ensured that the male locking buckle 21 can rotate relative to the base 12.

[0048] In this embodiment, at least two latching positions 201 are arranged at intervals in the up-down direction on the opposite side walls of the male lock buckle 21, and each latching position 201 selectively engages the locking member 4 to achieve positioning of the locking member 4. In addition, a paddle 202 located in the rotating groove 103 is provided at the lower end of the male lock buckle 21. The paddle 202 is used to limit the up-down movement of the oil net 3, and the paddle 202 can rotate between the unlocking position and the locking position. When the paddle 202 rotates to the locking position, the movable end of the paddle 202 extends out of the opening of the rotating groove 103 and is located above the lower edge of the oil net 3. At this time, the movable end of the paddle 202 presses the front lower edge of the oil net 3 against the oil receiving ring 11 of the oil ring mechanism 1, so that the oil net 3 is locked to the oil receiving ring 11. When the paddle 202 is rotated to the unlocking position, the movable end of the paddle 202 is located outside the front lower edge of the oil net 3, and can even be designed to be retracted into the rotating groove 103. At this time, the paddle 202 is separated from the oil net 3, so that the oil net 3 is unlocked from the oil receiving ring 11. Therefore, by rotating the paddle 202 of the male lock buckle 21, the oil net 3 can be locked to the oil receiving ring 11, ensuring that the oil net 3 is firmly and reliably connected to the oil receiving ring 11, or the oil net 3 can be unlocked from the oil receiving ring 11, without disassembling the first locking mechanism 2, and the oil net 3 can be quickly removed and cleaned separately. The disassembly and assembly method is simple and fast, and at the same time, it is avoided that the first locking mechanism 2 is removed and caused to be lost.

[0049] refer to Figure 1 and Figure 3 Furthermore, the lower edge of the oil net 3 is provided with an upwardly extending flange 31 in the circumferential direction, and the rear flange 31 and the outer side wall of the rear end of the annular groove 110 form a rear limit, and the front flange 31 is located between the base 12 and the inner side wall of the front end of the annular groove 110 to form a front limit, and the front and rear limit are matched to limit the front and rear displacement of the oil net 3. In addition, the front flange 31 is provided with a notch 32 at the position corresponding to the paddle 202, and the notch 32 is matched with the paddle 202. The movable end of the paddle 202 is selectively inserted into the notch 32, so that the front flange 31 is pressed tightly against the oil receiving ring 11 through the paddle 202, or the connection between the front flange 31 and the oil receiving ring 11 is released.

[0050] In this embodiment, the oil net 3 is in the shape of a truncated cone with a large lower end and a small upper end, and an oil collecting groove 33 for collecting oil is formed between the flange 31 and the lower end of the oil net 3. An oil drain hole 34 is provided at the position of the oil collecting groove 33 corresponding to the oil leakage hole 112, and the oil drain hole 34 is connected to the oil leakage hole 112. Therefore, when the oil deposited on the oil net 3 flows downward along the oil net 3 to the oil collecting groove 33, and then passes through the oil drain hole 34 and the oil leakage hole 112 in sequence to be collected in the oil cup of the range hood, so as to prevent the oil deposited on the oil net 3 from dripping downward to the stove.

[0051] refer to Figure 4 and Figure 8Furthermore, the locking member 4 is annular in structure and can be movably sleeved on the outer surface of the first locking mechanism 2. The inner side wall of the locking member 4 is correspondingly provided with a positioning rib 42 extending toward the first locking mechanism 2. The positioning rib 42 is used to selectively engage with the engaging position 201 close thereto. The engaged positioning rib 42 and the engaging position 201 together constitute a positioning structure. Thus, the locking member 4 is reliably connected to the male lock buckle 21 of the first locking mechanism 2 through the positioning structure.

[0052] A locking portion 41 is provided at the lower end of the side wall or the bottom of the locking member 4 at a position corresponding to the limiting groove 102, and the locking portion 41 is inserted into the limiting groove 102. When the first locking mechanism 2 needs to be locked to the base 12, the locking member 4 is pushed downward to make the positioning rib 42 engage the positioning position 201, and the locking portion 41 is inserted into the limiting groove 102. At this time, under the cooperation of the positioning rib 42 and the positioning position 201, the locking portion 41 and the limiting groove 102, the first locking mechanism 2 is locked to the base 12, so that the first locking mechanism 2 cannot rotate relative to the base 12, and the paddle 202 is prevented from being separated from the gap of the oil net 3 due to the activity of the first locking mechanism 2, thereby ensuring that the oil net 3 will not fall off the oil receiving ring 11.

[0053] When the oil screen 3 needs to be removed separately, the locking relationship between the first locking mechanism 2 and the base 12 is first released, that is, the locking member 4 is pulled upward to separate the locking portion 41 from the limiting groove 102, and the locking relationship between the positioning rib 42 and the locking position 201 is released, thereby unlocking the first locking mechanism 2 and the base 12, and the first locking mechanism 2 can rotate relative to the base 12. Then the first locking mechanism 2 is rotated toward the unlocking position, and when the paddle 202 is rotated to the unlocking position, the oil screen 3 and the oil receiving ring 11 are unlocked. At this time, the oil screen 3 can be removed separately for cleaning without disassembling the first locking mechanism 2.

[0054] In this embodiment, two opposite outer side walls of the locking member 4 are respectively provided with a plurality of anti-slip portions 43 arranged at intervals along the height direction to prevent the locking member 4 from slipping when the user pulls the locking member 4 upward.

[0055] Example 2

[0056] refer to Figure 9-10The present embodiment provides a range hood, comprising a smoke hood 5, a second locking mechanism 6 and an oil net assembly as described in Example 1. An air inlet 501 for smoke to pass through is provided at the bottom of the smoke hood 5, and an oil net sinking platform 503 located outside the air inlet 501 is provided at the bottom of the smoke hood 5. The oil net sinking platform 503 has four sides, and a mounting port 502 is provided in the middle of the front side of the oil net sinking platform 503, and hook holes 504 are provided on the left and right sides of the rear side of the oil net sinking platform 503. The second locking mechanism 6 is installed inside the smoke hood 5 and located at the top of the mounting port 502. The oil net assembly is arranged at the air inlet 501, and the rear end of the oil net assembly is detachably connected to the smoke hood 5 through the hook 113 and the hook hole 504, and the front end of the oil net assembly is detachably connected to the second locking mechanism 6 through the first locking mechanism 2.

[0057] Therefore, through the matching first locking mechanism 2 and the second locking mechanism 6 and the matching hook 113 and the hook hole 504, the oil net assembly can be installed at the air inlet 501 and detachably connected to the smoke hood 5. The quick-release method of fixing the oil net assembly is simple and fast. At the same time, the oil net 3 is stable and reliable, which prevents the oil net 3 from falling off due to the movement of the public lock 21 when the oil net assembly is quickly removed from the smoke hood 5.

[0058] refer to Figure 10-11 The second locking mechanism 6 includes a fixing seat 61 and a marble structure 62 suitable for cooperating with the male lock buckle 21. The fixing seat 61 is connected to the front middle of the oil screen sink 503 by bonding, welding, riveting or screwing and is located directly above the installation opening 502. The fixing seat 61 is provided with an opening 611 at a position corresponding to the installation opening 502, for the male lock buckle 21 to move through. Two marble structures 62 are provided on the fixing seat 61, which are located on the opposite sides of the opening 611. A stopper 621 extending outward is provided on the side of each marble structure 62 close to the opening 611, which is used to limit the upward movement of the locking member 4.

[0059] During installation, the upper end of the male lock buckle 21 is inserted through the installation opening 502 and the opening 611 from bottom to top, and then clamped between the two marble structures 62, thereby achieving a stable and reliable connection between the second lock mechanism 6 and the male lock buckle 21. Under the limiting action of the stopper 621, the locking member 4 will move downward until the positioning rib 42 of the locking member 4 is engaged with the clamping position 202 of the male lock buckle 21. When the positioning rib 42 is engaged with the clamping position 202, the locking portion 41 is inserted into the limiting groove 102 of the base 12, thereby locking the male lock buckle 21 to the base 12, and preventing the oil net 3 from falling off due to the movement of the male lock buckle 21 after the oil net assembly is removed.

[0060] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An oil screen assembly, characterized in that: include: An oil ring mechanism (1), the oil ring mechanism (1) being in an annular structure, so as to form a central hole (101) for smoke to pass through; A first locking mechanism (2) is movably arranged on the oil ring mechanism (1) and is used for detachably connecting the smoke collecting hood; An oil net (3) is arranged above the oil ring mechanism (1), and the oil net (3) is detachably connected to the oil ring mechanism (1) via the first locking mechanism (2); A locking member (4) is movably arranged on the oil ring mechanism (1) or the first locking mechanism (2), and the first locking mechanism (2) and the oil ring mechanism (1) are locked or unlocked via the locking member (4); The oil ring mechanism (1) is provided with a limiting portion arranged close to the first locking mechanism (2); the locking member (4) is movably sleeved on the outer surface of the first locking mechanism (2); a locking portion (41) is provided at the lower end or bottom of the side wall of the locking member (4); and the locking portion (41) is inserted into the limiting portion.

2. The oil screen assembly according to claim 1, characterized in that: The first locking mechanism (2) comprises a male locking buckle (21), and at least two latching positions (201) arranged at intervals in the up-down direction are provided on opposite side walls of the male locking buckle (21), and the latching positions (201) selectively latch the locking member (4).

3. The oil screen assembly according to claim 1, characterized in that: The limiting portion is a limiting groove (102) opening toward the first locking mechanism (2); the locking member (4) is movably mounted on the outer surface of the first locking mechanism (2) up and down; the locking portion (41) is inserted into the limiting groove (102); and the locking member (4) is connected to the first locking mechanism (2) via a positioning structure.

4. The oil screen assembly according to claim 3, characterized in that: The positioning structure comprises a positioning rib (42) and a latching position (201), at least one of the latching positions (201) is respectively provided on two opposite side walls of the first locking mechanism (2), the locking member (4) is correspondingly provided with the positioning rib (42) facing the first locking mechanism (2), and the positioning rib (42) selectively latches the latching position (201).

5. The oil screen assembly according to claim 1, characterized in that: The oil ring mechanism (1) comprises an annular oil receiving ring (11) and a base (12); the oil receiving ring (11) is arranged at the bottom of the oil net (3) and is used to receive the oil net (3); the base (12) is installed on the top of the oil receiving ring (11) and is located outside the oil net (3); and the limiting portion is provided on the base (12).

6. The oil screen assembly according to claim 5, characterized in that: The oil ring mechanism (1) further comprises a bracket (13), wherein the bracket (13) is fixedly arranged on the top of the oil receiving ring (11), and the base (12) is detachably connected to the oil receiving ring (11) via the bracket (13).

7. An oil screen assembly according to any one of claims 1 to 6, characterized in that: The first locking mechanism (2) is rotatably arranged outside the oil net (3), and the first locking mechanism (2) is provided with a paddle (202) for limiting the upward and downward movement of the oil net (3), and the paddle (202) can be rotated between the upper side of the lower edge of the oil net (3) and the outside of the oil net (3) so as to lock or unlock the oil net (3) and the oil ring mechanism (1).

8. The oil screen assembly according to claim 7, characterized in that: A flange (31) extending upward is provided in the circumferential direction of the lower edge of the oil net (3); a notch (32) is provided on the flange (31) at a position corresponding to the pick (202); the notch (32) is arranged in coordination with the pick (202); and the pick (202) is selectively inserted into the notch (32).

9. The oil screen assembly according to claim 7, characterized in that: The oil ring mechanism (1) is provided with a rotation groove (103) at a position corresponding to the paddle (202); the rotation groove (103) cooperates with the paddle (202) and is used to limit the rotation angle of the paddle (202); the paddle (202) is rotatably arranged in the rotation groove (103).

10. A range hood, characterized in that: include: A smoke collecting hood is provided with an air inlet (501) for smoke to pass through and a mounting opening (502) located outside the air inlet (501); A second locking mechanism (6) is arranged at the installation opening (502); The oil net assembly according to any one of claims 1 to 9, wherein the oil net assembly is arranged at the air inlet (501), and the first locking mechanism (2) is detachably connected to the second locking mechanism (6).

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