Oil screen mounting structure of range hood and range hood

Abstract

The utility model relates to an oil screen installation structure of a range hood and the range hood, and the oil screen installation structure comprises an oil screen which is detachably installed at an air inlet of a housing of the range hood; the oil screen is provided with a first side edge and a second side edge which are vertically opposite to each other, a first mounting edge and a second mounting edge which are vertically opposite to each other are arranged at an air inlet of the machine shell, and a first inserting piece is arranged on one of the first side edge of the oil screen and the first mounting edge of the machine shell; one of the second side edge of the oil screen and the second installation edge of the machine shell is provided with a second insertion piece, and the other one of the second side edge of the oil screen and the second installation edge of the machine shell is provided with a second insertion hole for the second insertion piece to be inserted into. The main body of the oil screen is connected with a part of the area at the air inlet of the machine shell through a magnetic attraction structure. The oil screen has the advantages that the oil screen is convenient to disassemble and assemble, is firmly fixed after being installed, and is not easy to fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to an oil net installation structure of a range hood and the range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. The housing of the range hood is provided with an air inlet and an oil net at the air inlet to filter the oil smoke. However, the oil net of the existing range hood is basically fixed and installed by screws. This installation method requires the use of professional tools such as screwdrivers to remove and clean the oil net, and the operation is very troublesome.

[0003] In order to solve the above technical problems, a Chinese utility model patent application with application number CN202120553709.X (authorization announcement number: CN214664662U) discloses a smoke hood and a side-suction range hood, which includes a smoke hood, and the smoke hood includes: a smoke hood body, a baffle and an oil net, the smoke hood body is provided with a groove, the baffle is detachably arranged at the notch of the groove, the baffle is provided with a smoke inlet connected to the smoke collection chamber, and the oil net is detachably arranged at the smoke inlet. The baffle includes an upper baffle and a lower baffle, and there is a gap between the upper baffle and the lower baffle to form the smoke inlet. A second plug-in portion is provided on the upper side of the oil net, a second plug-in hole capable of being inserted with the second plug-in portion is provided on the lower side of the upper baffle, and a magnetic attraction structure is provided between the lower part of the oil net and the upper part of the lower baffle. When installing the oil net, first insert the second plug-in portion into the second plug-in hole for pre-positioning, and then swing the oil net so that the lower part of the oil net is connected to the upper part of the lower baffle through the magnetic attraction structure, thereby installing the oil net at the smoke inlet. The magnetic attraction structure includes a magnet and a magnetic attraction portion that can be attracted by the magnet, one of the magnet and the magnetic attraction portion is provided on the lower part of the oil net facing the side of the lower baffle, and the other is provided on the upper part of the lower baffle facing the side of the oil net.

[0004] However, the oil net installation structure of the range hood in the above patent application still has certain shortcomings. First, since the oil net and the lower baffle are only connected by a magnetic attraction structure, when the magnetic force of the magnet decreases or even disappears (such as when heated), the oil net is at risk of falling off. Secondly, there is no constraint between the magnet and the upper part of the lower baffle in the normal direction. When the oil net is removed, the magnet is easily attracted by the magnetic attraction of the oil net and brought down, which poses a risk of falling off. On the other hand, during the installation and removal process, the oil net is in direct contact with the magnet, which is easy to damage the magnet.

[0005] Therefore, the oil net installation structure of the existing range hood needs to be further improved. Utility Model Content

[0006] The first technical problem to be solved by the utility model is to provide an oil net installation structure for a range hood, which is convenient for disassembly and assembly, firmly fixed after installation, and not prone to falling off, in view of the current status of the prior art.

[0007] The second technical problem to be solved by the utility model is to provide an oil net installation structure for a range hood with a magnet that is firmly fixed and not easy to fall off, in view of the current status of the prior art.

[0008] The third technical problem to be solved by the present invention is to provide a range hood using the above oil net installation structure in view of the current status of the prior art.

[0009] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: an oil net installation structure of a range hood, comprising:

[0010] The oil screen is detachably installed at the air inlet of the range hood casing;

[0011] The oil net has a first side edge and a second side edge that are opposite to each other up and down, and the casing has a first mounting edge and a second mounting edge that are opposite to each other up and down at the air inlet. A first plug is provided on one of the first side edge of the oil net and the first mounting edge of the casing, and a first plug hole is provided on the other one for the first plug to be inserted into. A second plug is provided on one of the second side edge of the oil net and the second mounting edge of the casing, and a second plug hole is provided on the other one for the second plug to be inserted into. The main body of the oil net is also connected to a part of the area at the air inlet of the casing via a magnetic structure.

[0012] After the upper and lower opposite side edges of the oil net are positioned with the upper and lower mounting edges of the air inlet of the casing through plugs and sockets, they are also adsorbed and connected through a magnetic structure, thereby achieving a secure installation of the oil net. When the magnetic force of the magnetic structure decreases or even disappears, the risk of the oil net falling can be effectively avoided due to the presence of the matching structure of the plug and the socket.

[0013] In order to open the first plug hole, the first installation edge of the housing has a first folded edge bent backward and a second folded edge bent downward from the rear of the first folded edge, the first folded edge is provided with the first plug hole, the first installation edge of the oil net is provided with a first plug extending upward at a position corresponding to the first plug hole, the second installation edge of the housing is provided with a second plug extending downward at a position corresponding to the second plug hole. The first folded edge and the second folded edge of the housing also form a positioning step structure for positioning the upper part of the oil net, reducing the shaking problem of the oil net.

[0014] The setting of the magnetic attraction structure needs to occupy a certain installation area. In order to arrange its installation position reasonably, the second folded edge of the housing and the first side edge of the oil net are connected through the magnetic attraction structure.

[0015] As an improvement, a magnet is installed on the second folded edge of the housing, and a magnetic conductive portion capable of being attracted by the magnet is provided on the first side edge of the oil net, and the magnet and the magnetic conductive portion together constitute the magnetic attraction structure. It is conceivable that a magnet can also be provided on the first side edge of the oil net, and a magnetic conductive portion can be correspondingly provided on the second folded edge of the housing.

[0016] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: in order to firmly install the magnet on the second folded edge of the casing and avoid the magnet being taken out due to adsorption with the oil net when the oil net is removed, the second folded edge of the casing defines a mounting groove open at the rear, the magnet is arranged in the mounting groove and is limited by a cover plate covering the rear opening of the mounting groove, and the magnetic conductive part of the oil net is in contact with the front side wall of the second folded edge where the mounting groove is located.

[0017] In order to ensure that there is a good magnetic attraction force between the oil net and the second folded edge of the casing, a boss protruding forward relative to the front wall of the second folded edge body is formed on the second folded edge of the casing in an area corresponding to the mounting groove, and an opening that penetrates the mounting groove is formed on the front side wall of the boss. The magnet installed in the mounting groove is partially exposed through the opening, and the magnetic conductive part of the oil net is in contact with the part of the magnet exposed through the opening.

[0018] As an improvement, the first side edge of the oil net has a flange folded and extended backward and a matching plate folded and extended from the flange toward the second side edge of the oil net, and the matching plate constitutes the magnetic conductive part of the oil net.

[0019] Taking into account the boss structure protruding forward on the second folded edge, in order to adapt thereto, the first insert of the oil net is arranged on the flange and arranged rearward relative to the matching plate.

[0020] In order to avoid interference between the flange of the oil net and the boss on the second folded edge, the flange of the oil net is provided with a notch at a position corresponding to the boss for the boss to be received therein.

[0021] In order to facilitate the user to take the oil net and reduce the situation that the oil net slips out of the hand, the oil net is also provided with a handle opening for the user to insert his hand into to take the oil net.

[0022] As an improvement, the air inlet on the casing extends in the left-right direction, and the oil nets have at least two arranged in sequence in the left-right direction of the air inlet.

[0023] The technical solution adopted by the utility model to solve the third technical problem mentioned above is: a range hood, comprising a casing and an oil net arranged at the air inlet of the casing, wherein the oil net is connected to the casing through the above-mentioned oil net mounting structure.

[0024] Compared with the prior art, the advantages of the utility model are as follows: after the upper and lower opposite side edges of the oil net are positioned with the upper and lower mounting edges of the air inlet of the casing by means of the insert and the socket, they are also connected by adsorption through the magnetic structure, thereby achieving a secure installation of the oil net. When the magnetic force of the magnetic structure decreases or even disappears, the risk of the oil net falling off can be effectively avoided due to the existence of the matching structure of the insert and the socket. In a preferred embodiment, the magnet of the magnetic structure is securely installed in the groove of the casing and is attracted to the magnetic conductive part of the oil net, so there is no risk of the magnet falling off during the disassembly of the oil net, and the magnet is not damaged. In another preferred embodiment, a handle buckle is provided on the oil net to facilitate installation and disassembly, thereby reducing the problem of users' hands being easily contaminated with oil during disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the front side of the oil screen installation structure of the embodiment of the utility model;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the back side of the oil screen installation structure of an embodiment of the utility model;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the front side of the oil screen of the embodiment of the utility model;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the back side of the oil screen of the embodiment of the utility model;

[0029] Figure 5 for Figure 1 The schematic diagram of the three-dimensional structure after omitting one oil net;

[0030] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure on the back (magnet and cover are in disassembled state);

[0031] Figure 7 It is a vertical cross-sectional view of the oil net installation structure of an embodiment of the utility model cut along the front-to-back direction. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations 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.

[0034] Figure 1-Figure 7 The oil net installation structure of the range hood of the utility model and a preferred embodiment of the range hood are shown. The range hood includes a casing and a centrifugal fan arranged in the casing. The casing generally includes a fan frame and a smoke hood arranged at the bottom of the fan frame. The inner cavity of the fan frame is connected to the inner cavity of the smoke hood. An air inlet (not shown) is provided on the front side of the smoke hood, and external smoke can enter the smoke hood through the air inlet. The centrifugal fan is arranged in the fan frame. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the smoke hood through the air inlet. An oil net 20 is also provided at the air inlet of the smoke hood for filtering oil smoke. An oil cup is provided at the bottom of the smoke hood. The oil cup is in the shape of a long strip extending left and right, and is used to receive oil stains flowing down from the smoke hood. The housing of this embodiment only shows its front side plate, which includes an upper plate body 13 and a lower plate body 14 spaced apart from each other. The long strip-shaped space between the upper plate body 13 and the lower plate body 14 is the above-mentioned air inlet.

[0035] The oil net 20 is connected to the air inlet 10 of the casing in a detachable design, so as to facilitate cleaning and maintenance. Specifically, the oil net 20 has two upper and lower opposite edges, which are respectively recorded as a first side edge 21 and a second side edge 22. Correspondingly, the air inlet 10 of the casing also has two upper and lower opposite mounting edges, which are respectively recorded as a first mounting edge 11 and a second mounting edge 12. The first mounting edge 11 is also the lower edge of the upper plate body 13, and the second mounting edge 12 is also the upper edge of the lower plate body 14. The first side edge 21 of the oil net 20 is used to connect with the first mounting edge 11 of the casing, and the second side edge 22 of the oil net 20 is used to connect with the second mounting edge 12 of the casing. The first installation edge 11 of the housing is designed with a first folded edge 111 bent backward and a second folded edge 112 bent downward from the rear of the first folded edge 111, so that a positioning step structure is formed, and the first side edge 21 of the oil net 20 can be limited at the above positioning step, reducing the shaking that may occur during operation and improving the reliability of the installation of the oil net 20. More specifically, the outer peripheral edge of the oil net 20 has a flange 212 that is folded and extended backward, wherein the flange 212 at the first side edge 21 has a first plug 211 extending upward on the end side away from the main body of the oil net 20, and two first plugs 211 can be arranged at intervals in the left and right directions. The first folded edge 111 of the housing has a first plug hole 1110 opened up and down, and there are also two first plug holes 1110, which can be used for the two first plugs 211 of the oil net 20 to be inserted into them. The upper edge of the lower plate body 14 also has a third folded edge 121 bent from back to front, and a second plug hole 1210 is opened on the third folded edge 121. The second plug hole 1210 also has two left and right spaced apart arrangements. Correspondingly, the bottom of the flange 212 at the second side edge 22 of the oil net 20 has a second plug piece 221 extending downward at the end side away from the main body of the oil net 20. The second plug piece 221 also has two left and right spaced apart arrangements, which can be respectively inserted into the above-mentioned two second plug holes 1210.

[0036] See also Figures 5 to 7 In order to ensure the reliability of the installation of the oil net 20, especially considering that the oil net 20 and the housing are connected only by the plug and the socket, which may cause the oil net 20 to shake (such as when the fan is running), the oil net 20 and the housing are also connected by a magnetic attraction structure. On the other hand, when the magnetic attraction structure decreases or even disappears, the existence of the plug and the socket structure can effectively avoid the risk of the oil net 20 falling.

[0037] A magnet 30 is mounted on the second folded edge 112 of the housing, and a magnetic conductive portion that can be attracted by the magnet 30 is provided on the first side edge 21 of the oil screen 20. The magnet 30 and the magnetic conductive portion together constitute the magnetic attraction structure. Specifically, part of the second folded edge 112 of the housing continues to extend downward so that there is enough area to accommodate the magnet 30. The part of the second folded edge 112 that extends further downward can be formed into a rear open mounting groove 1121 by forward stamping. After the magnet 30 is placed in the mounting groove 1121, the rear open portion of the mounting groove 1121 is fixed by a cover plate 1124. A boss 1122 protruding forward relative to the front wall of the second folded edge 112 body is formed on the second folded edge 112 of the housing in the area corresponding to the mounting groove 1121. An opening 1123 intersecting the mounting groove 1121 is provided on the front side wall of the boss 1122. Part of the magnet 30 installed in the mounting groove 1121 is exposed through the opening 1123. Specifically, the magnet 30 can adopt a T-shaped or conical structure with a small front end and a large rear end. In order to effectively attract the magnet 30, the first side edge 21 of the oil net 20 is designed with a matching plate 213 extending downward from the flange 212. The matching plate 213 can be a metal part that can be attracted by the magnet 30. The matching plate 213, as a magnetic conductive part, fits with the part of the magnet 30 exposed through the opening 1123 to enhance the connection stability between the oil net 20 and the housing.

[0038] Taking into account the existence of the boss 1122 structure protruding forward on the second folded edge 112, in order to adapt to it and avoid interference problems, a clearance notch 214 is specially designed on the flange 212 of the first side edge 21 of the oil net 20, and the first insert 211 on the oil net 20 is arranged rearward relative to the matching plate 213.

[0039] The oil net 20 of this embodiment is also designed with a handle opening 23 so that the user can easily reach in and take the oil net 20. Considering the convenience and safety of user operation, the edge of the handle opening 23 is chamfered and arranged at a position that is convenient for the user to grasp. The size of the opening 1123 is also adapted to different hand shapes while maintaining the integrity of the oil net 20 structure.

[0040] According to actual needs, multiple oil nets 20 can be set, and multiple oil nets 20 are arranged in sequence along the left and right directions of the air inlet 10 of the casing to provide a larger smoking area. At the same time, the multiple oil nets 20 arranged in the left and right directions of the air inlet 10 are connected in sequence to effectively prevent smoke leakage. At the same time, they can be disassembled and washed separately, which is flexible and convenient. The multiple oil nets 20 are also connected to the casing through the above-mentioned plug-in and plug-in matching structure and magnetic attraction structure. The attached figure of this embodiment shows two oil nets 20 arranged in sequence on the left and right.

[0041] The installation steps of the oil screen in this embodiment are as follows:

[0042] ① The user holds the open handle 23 and inserts the first inserting piece 211 at the upper end of the oil net 20 into the first inserting hole 1110 at the bottom of the upper plate 13 so that the two fit together and the upper end of the oil net 20 is positioned successfully.

[0043] ② Flip the oil screen 20 downward so that the matching plate 213 thereon contacts with the T-shaped magnet 30 and is adsorbed.

[0044] ③ Insert the second inserting piece 221 at the lower end of the oil screen 2 into the second inserting hole 1210 at the upper end of the lower plate body 14.

[0045] ④ Gently pull the oil net 20 downwards so that the lower end of the oil net 20 is completely fitted with the lower plate 14. At this time, the fitting plate of the oil net 20 is just in contact with the T-shaped magnet 30, and the installation of the oil net 20 is completed.

[0046] The steps to disassemble the oil screen are as follows:

[0047] ① The user holds the open handle 23 and gently pulls the oil net 20 upwards, so that the second plug at the lower end of the oil net 20 is separated from the second plug hole of the lower plate 14. At this time, the upper end of the oil net 20 is completely fitted with the lower end of the upper plate 13.

[0048] ② Flip the oil net 20 upward so that the matching plate 213 of the oil net 20 is separated from the T-shaped magnet 30.

[0049] ③ Pull the oil net 20 downwards to separate the first inserting piece 211 at the upper end of the oil net 20 from the first inserting hole 1110 of the upper plate 13, and the disassembly of the oil net 20 is completed.

[0050] The present embodiment further provides a range hood, comprising a casing and an oil net 20 disposed at an air inlet 10 of the casing, wherein the oil net 20 is connected to the casing via the above-mentioned oil net mounting structure.

Claims

1. An oil net installation structure for a range hood, comprising: An oil screen (20) is detachably mounted at the air inlet (10) of the housing of the range hood; The invention is characterized in that: the oil net (20) has a first side edge (21) and a second side edge (22) which are opposite to each other in upper and lower directions; the air inlet (10) of the housing has a first mounting edge (11) and a second mounting edge (12) which are opposite to each other in upper and lower directions; one of the first side edge (21) of the oil net (20) and the first mounting edge (11) of the housing is provided with a first plugging piece (211), and the other is provided with a first plugging hole (1110) for inserting the first plugging piece (211); the second side edge (22) of the oil net (20) and the second mounting edge (12) of the housing are provided with a second plugging piece (221), and the other is provided with a second plugging hole (1210) for inserting the second plugging piece (221); the main body of the oil net (20) is connected to a part of the area at the air inlet (10) of the housing by a magnetic attraction structure.

2. The oil screen installation structure of the range hood according to claim 1, characterized in that: The first installation edge (11) of the housing has a first folded edge (111) bent backwards and a second folded edge (112) bent downwards from the rear of the first folded edge (111); the first folded edge (111) is provided with the first plug hole (1110); the first installation edge (11) of the oil net (20) is provided with a first plug piece (211) extending upwards at a position corresponding to the first plug hole (1110); the second installation edge (12) of the housing has a second plug hole (1210); the second installation edge (12) of the oil net (20) is provided with a second plug piece (221) extending downwards at a position corresponding to the second plug hole (1210).

3. The oil screen installation structure of the range hood according to claim 2, characterized in that: The second folded edge (112) of the housing is connected to the first side edge (21) of the oil net (20) via the magnetic attraction structure.

4. The oil screen installation structure of the range hood according to claim 3, characterized in that: A magnet (30) is installed on the second folded edge (112) of the housing, and a magnetic conductive portion that can be attracted by the magnet (30) is provided on the first side edge (21) of the oil net (20), and the magnet (30) and the magnetic conductive portion together constitute the magnetic attraction structure.

5. The oil screen installation structure of the range hood according to claim 4, characterized in that: The second folded edge (112) of the housing defines a mounting groove (1121) which is open at the rear, the magnet (30) is arranged in the mounting groove (1121) and is limited in position by a cover plate (1124) covering the rear opening of the mounting groove (1121), and the magnetic conductive portion of the oil net (20) is in contact with the front side wall of the second folded edge (112) where the mounting groove (1121) is located.

6. The oil screen installation structure of a range hood according to claim 5, characterized in that: A boss (1122) is formed on the second folded edge (112) of the housing in an area corresponding to the installation groove (1121) and protrudes forward relative to the front wall of the second folded edge (112) body. An opening (1123) that is in communication with the installation groove (1121) is formed on the front side wall of the boss (1122). A portion of the magnet (30) installed in the installation groove (1121) is exposed through the opening (1123), and the magnetic conductive portion of the oil net (20) is in contact with the portion of the magnet (30) exposed through the opening (1123).

7. The oil screen installation structure of a range hood according to claim 6, characterized in that: The first side edge (21) of the oil net (20) has a flange (212) that is folded and extended backwards, and a matching plate (213) that is folded and extended from the flange (212) toward the side where the second side edge (22) of the oil net (20) is located, and the matching plate (213) constitutes the magnetic conductive part of the oil net (20).

8. The oil screen installation structure of a range hood according to claim 7, characterized in that: The first inserting piece (211) of the oil net (20) is arranged on the flange (212) and is arranged rearward relative to the matching plate (213).

9. The oil screen installation structure of a range hood according to claim 7, characterized in that: The flange (212) of the oil net (20) also has a clearance notch (214) at a position corresponding to the boss (1122) for the boss (1122) to be received therein.

10. The oil screen installation structure of a range hood according to any one of claims 1 to 9, characterized in that: The oil net (20) is also provided with a handle opening (23) for a user to insert his / her hand into to take the oil net (20).

11. The oil screen installation structure of a range hood according to any one of claims 1 to 9, characterized in that: The air inlet (10) on the casing extends in the left-right direction, and the oil net (20) comprises at least two oil nets arranged in sequence in the left-right direction of the air inlet (10).

12. A range hood, comprising a housing and an oil screen (20) arranged at an air inlet (10) of the housing, characterized in that: The oil net (20) is connected to the casing via the oil net mounting structure of the range hood according to any one of claims 1 to 11.

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