Oil screen device of range hood

Abstract

An oil screen device of a range hood comprises an outer oil screen and two inner oil screens, the two inner oil screens are arranged on the left side and the right side of the outer oil screen, the outer oil screen is provided with first screen holes, the inner oil screens are provided with second screen holes, the oil screen device further comprises a plurality of installation modules detachably connected with the outer oil screen, and each installation module comprises a shell and a connecting part exposed out of the shell. The inner oil screen is detachably connected with the connecting part, the mounting module enables the oil screen device to be kept in the initial state that the first mesh holes and the second mesh holes coincide through the compressed elastic piece, the inner oil screen can move relative to the outer oil screen by means of the mounting module, and the coincident area of the first mesh holes and the second mesh holes is reduced till the first mesh holes and the second mesh holes are staggered. The oil screen device has the advantages that the mounting module, the inner oil screen and the outer oil screen can be quickly detached, so that the oil screen device is cleaned; the two inner oil nets can move relative to the outer oil net through the installation module, and the air inlet amount of the left side and the right side is adjusted. The installation module enables the oil screen device to be reset and kept in a ventilation state through the compressed elastic piece.

Description

Technical Field

[0001] The utility model relates to an oil fume filtering device, in particular to an oil net device of a range hood. Background Art

[0002] A range hood is a commonly used kitchen appliance. A range hood usually has an oil net device installed at the air inlet to filter oil stains, and then guides the oil out of the room after being accelerated by a centrifugal fan, thereby purifying the kitchen environment. However, for existing kitchens, the stove usually has two burners arranged side by side, and the range hood usually has a single air inlet. The air inlet of the range hood will cover the entire double-burner stove, and the entire oil net air inlet area will be evenly inlet. However, in actual use of the range hood, one burner is often used for cooking (producing a large amount of oil smoke), while the other burner is not working or is used for steaming (producing a small amount of oil smoke), resulting in a difference in the amount of oil smoke generated by the two burners of the stove. If the existing range hood is used for extraction, if the wind force of the range hood is small, there is a problem of untimely exhaust of oil smoke on one side; if the wind force of the range hood is large, there is a problem of wasting the exhaust capacity of the range hood.

[0003] The existing oil screen device for range hoods has been improved to address the above-mentioned problems, as shown in the Chinese utility model "A smart dynamic oil screen for range hoods" with patent number CN202122902838.8 (authorization announcement number CN216557291U), which includes two groups of screen panels and a toggle device, each group of screen panels consists of two overlapping screen panels, one of which is a fixed screen panel and the other is a movable screen panel. The movable screen panel can move relative to the fixed screen panel, that is, a sliding rod is fixedly connected to the fixed screen panel, and the sliding rod is passed through the movable screen panel; when the ventilation area of ​​the movable screen panel overlaps with the ventilation area of ​​the fixed screen panel, the screen panel group is in a ventilation state; when the windproof area of ​​the movable screen panel overlaps with the ventilation area of ​​the fixed screen panel, the screen panel group is in a windproof state.

[0004] Although the above-mentioned oil net device can independently adjust the suction force on the left and right sides, after the range hood is used for a long time, the oil net device will accumulate oil stains. If these oil stains are not cleaned in time, it will affect the suction capacity of the range hood and affect the user's respiratory health; however, since the above-mentioned sliding rod is fixed on the fixed mesh plate, and the sliding rod is inserted into the movable mesh plate, the fixed mesh plate, the movable mesh plate and the sliding rod cannot be removed separately for cleaning. Therefore, the user cannot thoroughly clean the oil net device, and the oil stains on the oil net device will affect the normal use of the range hood. In addition, after adjusting the air intake state, the existing oil net device may not be reset, that is, the oil net device may remain in the state of closing the air intake. When the user uses it next time, the oil smoke may not be sucked away in a short time, thereby affecting the suction efficiency of the range hood. For this reason, it is necessary to make further improvements to the oil net device of the range hood. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an oil net device which can adjust the air intake volume of the left and right areas of the oil net, can be quickly disassembled and can maintain a ventilated state in response to the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is as follows: the oil net device of the range hood comprises an outer oil net and two inner oil nets, the two inner oil nets are arranged on the left and right sides of the outer oil net, the outer oil net has a first mesh hole, and the inner oil net has a second mesh hole, and is characterized in that: it also comprises a plurality of mounting modules detachably connected to the outer oil net, the mounting module comprises an outer shell and a connecting portion exposed to the outer shell, the inner oil net is detachably connected to the connecting portion, the mounting module maintains the oil net device in an initial state where the first mesh hole overlaps with the second mesh hole through a compressed elastic member, and the inner oil net can move relative to the outer oil net with the aid of the mounting module, so that the overlapping area of ​​the first mesh hole and the second mesh hole is reduced until they are offset.

[0007] In order to enable the inner oil net to move relative to the outer oil net, preferably, a connecting piece is provided on the inner side of the inner oil net, and the connecting piece is arranged on opposite sides of the two inner oil nets. The connecting piece can drive the inner oil net to move relative to the outer oil net under the drive of a motor.

[0008] As a solution of the elastic member, preferably, the elastic member includes a first elastic member and a second elastic member, the first elastic member is arranged in the installation module far from the connecting member, and the second elastic member is arranged in the installation module close to the connecting member, and the elastic coefficient of the first elastic member is greater than the elastic coefficient of the second elastic member, so that the oil net device is kept in the initial state. The first elastic member and the second elastic member are both in a compressed state, and because the elastic coefficient of the first elastic member is greater than the elastic coefficient of the second elastic member, the reverse force generated by the first elastic member is greater than the reverse force generated by the second elastic member, so that the inner oil net is always subjected to a force in the direction of the motor, thereby keeping the second mesh on the inner oil net and the first mesh on the outer oil net in an overlapping state.

[0009] As another solution of the elastic member, preferably, an elastic member is provided in the mounting module away from the connecting member to keep the oil net device in the initial state. The elastic member is in a compressed state, so that the inner oil net is always subjected to a force in the direction of the motor, thereby keeping the second mesh hole on the inner oil net and the first mesh hole on the outer oil net in an overlapping state. Compared with the previous solution, this solution can save half of the elastic members, thereby simplifying the structure of some mounting modules.

[0010] In order to enable the inner oil net to be detachably connected to the connecting part, preferably, a sliding rod is provided in the installation module, the elastic member is sleeved on the sliding rod, one end of the sliding rod is the connecting part, the other end of the sliding rod is fixed in the installation module, the connecting part is a rod body, and the inner oil net is provided with an annular flange corresponding to the connecting part, and the annular flange can be sleeved on the connecting part.

[0011] Furthermore, a first mounting groove for installing a sliding rod is provided in the mounting module, and an opening connected to the outside is provided on one side of the first mounting groove, so that the connecting part is exposed to the outer shell of the mounting module, and a limiting part is provided on the sliding rod, which is respectively abutted against the elastic part and the annular flange, and the limiting part is installed at the opening and can move in the opening.

[0012] In order to keep the elastic member in a compressed state, preferably, a sleeve that can abut against the first mounting groove is sleeved on the slide bar, one end of the elastic member abuts against the sleeve, and the other end abuts against the stopper, so that the elastic member is kept in a compressed state. The length of the elastic member in a natural state is greater than the length of the first mounting groove, and the two ends of the elastic member abut against the sleeve and the stopper respectively, and the sleeve and the stopper respectively abut against the two ends of the first mounting groove, thereby keeping the elastic member in a compressed state installed in the first mounting groove.

[0013] In order to simplify the structure of the mounting module, preferably, a thread matching with a nut is provided on the outer end of the connecting portion, and when the nut is mounted on the connecting portion, the annular flange is fixedly connected to the connecting portion. The nut integrates the inner oil net with the mounting module, thereby saving some elastic parts and sleeves.

[0014] As a first solution for detachably connecting the mounting module to the external oil net, preferably, a second mounting slot for mounting a magnet is provided in the mounting module, and the external oil net is connected to the mounting module by attracting the magnet. The mounting module is connected to the external oil net by magnetic attraction.

[0015] As a second solution for detachably connecting the mounting module to the external oil net, preferably, a limiting protrusion is provided on the housing, and a slot corresponding to the limiting protrusion is provided on the external oil net. When the limiting protrusion is inserted into the slot, the mounting module is connected to the external oil net. In order to facilitate the installation of the mounting module, a slot is provided at the bottom of the external oil net, and correspondingly, a limiting protrusion is provided at the bottom of the housing of the mounting module. A magnet is provided in the second mounting groove of the upper mounting module, so that the lower mounting module is detachably connected to the external oil net by plug-in, and the upper mounting module is detachably connected to the external oil net by the magnet.

[0016] As a third solution for detachably connecting the mounting module to the outer oil net, preferably, the outer oil net is provided with a U-shaped flange for mounting the mounting module, the U-shaped flange forms an accommodation cavity with an opening facing inward, and the mounting module can be inserted into the accommodation cavity. The mounting module is detachably connected to the outer oil net through the accommodation cavity formed by the U-shaped flange.

[0017] Furthermore, a blocking portion is provided on one side of the U-shaped flange, and the blocking portion can prevent the installation module from escaping from the accommodating cavity. The blocking portion is provided on one side of the U-shaped flange close to the motor, thereby preventing the installation module from escaping from the accommodating cavity.

[0018] Compared with the prior art, the advantages of the utility model are: the installation module is detachably connected to the outer oil net, and can also be detachably connected to the inner oil net through the connecting part, so that the installation module and the inner oil net and the outer oil net can be quickly disassembled, thereby realizing the cleaning and maintenance of the oil net device; and the two inner oil nets of the oil net device can be moved relative to the outer oil net through the installation module, so that the oil net device can change the air intake area of ​​the left and right areas, thereby adjusting the air intake volume on the left and right sides, achieving the flow distribution effect, and optimizing the user's cooking experience; in addition, the installation module enables the oil net device to be reset and maintained in a ventilated state through the compressed elastic part, thereby ensuring the suction capacity of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of Example 1 of the utility model (the first mesh and the second mesh overlap);

[0020] Figure 2 It is a front view of the left side of Example 1 of the utility model (the first mesh and the second mesh are staggered);

[0021] Figure 3 It is a structural schematic diagram of the left side of the embodiment 1 of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure of the Chinese and foreign oil network and the installation module (housing omitted);

[0023] Figure 5 This is a schematic diagram of the structure of the installation module in Example 1 of the utility model (housing omitted);

[0024] Figure 6 This is an exploded schematic diagram of the left side of Example 2 of the utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of the structure of the Chinese and foreign oil network and the installation module (housing omitted);

[0026] Figure 8 It is a front view of embodiment 3 of the utility model;

[0027] Fig. 9 This is a schematic diagram of the structure of the left outer oil screen in Embodiment 3 of the present utility model;

[0028] Fig.10 This is a schematic structural diagram of the left inner oil screen and the mounting module in Example 3 of the utility model (the outer shell is omitted). DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 5 Shown is the preferred embodiment 1 of the utility model.

[0031] like Figures 1 to 3 As shown, the oil net device of this embodiment is installed at the air inlet of the range hood, and includes an outer oil net 1, two inner oil nets 2 and eight mounting modules 3. The two inner oil nets 2 are arranged on the left and right sides of the outer oil net 1. The outer oil net 1 has a first mesh hole 11, and the inner oil net 2 has a second mesh hole 21. The mounting modules 3 are detachably connected to the outer oil net 1, and the mounting modules 3 are also detachably connected to the inner oil nets 2. The mounting modules 3 keep the oil net device in an initial state where the first mesh hole 11 overlaps with the second mesh hole 21 through the compressed elastic member 4, and the inner oil net 2 can be moved relative to the outer oil net 1 with the aid of the mounting modules 3, so that the overlapping area of ​​the first mesh hole 11 and the second mesh hole 21 is reduced until they are staggered.

[0032] like Figure 4 and Figure 5 As shown, each inner oil net 2 is detachably connected to four mounting modules 3, and the eight mounting modules 3 and two inner oil nets 2 are symmetrically arranged on the left and right. In this embodiment, taking the inner oil net 2 and four mounting modules 3 on the left as an example, the mounting module 3 includes an outer shell 31 for anti-fouling and a connecting portion 32 exposed from the outer shell 31, the inner oil net 2 is detachably connected to the connecting portion 32, a sliding rod 33 is further provided in the mounting module 3, the elastic member 4 is sleeved on the sliding rod 33, one end of the sliding rod 33 is the connecting portion 32, the other end of the sliding rod 33 is fixed in the mounting module 3, the connecting portion 32 is a rod body, and an annular flange 22 corresponding to the connecting portion 32 is provided on the inner oil net 2, the annular flange 22 can be sleeved on the connecting portion 32, so that the inner oil net 2 and the mounting module 3 are detachably connected. In addition, in order to realize the detachable connection between the mounting module 3 and the external oil net 1, a second mounting groove 36 for mounting a magnet is provided in the mounting module 3, and the external oil net 1 is connected to the mounting module 3 by attracting the magnet; at the same time, a limiting protrusion 37 is provided on the outer shell 31 of the two lower mounting modules 3, and a slot 12 corresponding to the limiting protrusion 37 is provided on the external oil net 1. When the limiting protrusion 37 is inserted into the slot 12, the two lower mounting modules 3 are connected to the external oil net 1.

[0033] like Figure 5 As shown, a first mounting groove 34 for mounting the slide bar 33 is further provided in the mounting module 3, and an opening communicating with the outside is provided on one side of the first mounting groove 34, so that the connecting portion 32 is exposed to the housing 31 of the mounting module 3, and a limiting member 331 and a sleeve 35 are provided on the slide bar 33, the limiting member 331 is fixed on the slide bar 33, the limiting member 331 abuts against the elastic member 4 and the annular flange 22 respectively, the limiting member 331 is installed at the opening and can move in the opening; the sleeve 35 is sleeved on the slide bar 33, the sleeve 35 abuts against the groove wall of the first mounting groove 34 and the elastic member 4 respectively, one end of the elastic member 4 abuts against the sleeve 35, and the other end abuts against the limiting member 331, so that the elastic member 4 is kept in a compressed state.

[0034] like Figure 4As shown, a connector 23 is provided on the inner side of the inner oil net 2, and the connector 23 is arranged on opposite sides of the two inner oil nets 2, that is, the connector 23 of the inner oil net 2 on the left is arranged on the right side of the inner oil net 2, and the connector 23 of the inner oil net 2 on the right is arranged on the left side of the inner oil net 2. The connector 23 can drive the inner oil net 2 to move relative to the outer oil net 1 under the drive of the motor. In this embodiment, the elastic member 4 is a spring, and the elastic member 4 includes a first elastic member 41 and a second elastic member 42. The first elastic member 41 is provided in the two mounting modules 3 away from the connector 23, and the second elastic member 42 is provided in the two mounting modules 3 close to the connector 23. The elastic coefficient of the first elastic member 41 is greater than the elastic coefficient of the second elastic member 42, so that the oil net device is kept in the initial state. In this embodiment, the first elastic member 41 on the left side and the second elastic member 42 on the right side are both in a compressed state. Since the elastic coefficient of the first elastic member 41 is greater than the elastic coefficient of the second elastic member 42, the reverse force F1 generated by the first elastic member 41 is greater than the reverse force F2 generated by the second elastic member 42, so that the inner oil net 2 is always subjected to a rightward force, thereby keeping the second mesh 21 on the left inner oil net 2 and the first mesh 11 on the outer oil net 1 in an overlapping state.

[0035] The two mounting modules 3 away from the connecting member 23 are the first mounting module 3a and the second mounting module 3b, and the two mounting modules 3 close to the connecting member 23 are the third mounting module 3c and the fourth mounting module 3d. When the swing arm on the motor acts on the connecting member 23 on the inner oil net 2 to push it to move to the left, the two annular flanges 22 respectively push the slide bars 33 in the first mounting module 3a and the second mounting module 3b to move to the left. Under the action of the restoring force of the second elastic member 42, the slide bars 33 of the third mounting module 3c and the fourth mounting module 3d make the other two annular flanges 22 move to the left synchronously. When the inner oil net 2 moves a mesh distance, the first mesh 11 and the second mesh 21 are completely staggered, so that the air inlet of the inner oil net 2 In the closed state, at this time, the first elastic member 41 is compressed to the maximum value, and the second elastic member 42 is compressed to the minimum value; when the swing arm on the motor acts in the opposite direction on the connecting member 23 on the inner oil net 2, the inner oil net 2 moves to the right under the restoring force of the first elastic member 41, and at the same time, the compression amount of the second elastic member 41 gradually increases. When the force generated by the first elastic member 41 decreases to F1 and the force generated by the second elastic member 42 increases to F2, the inner oil net 2 moves back to the initial position, so that the oil net device remains in the initial state.

[0036] The inner oil nets 2 on both sides of the oil net device are installed in the same manner. Taking the inner oil net 2 on the left side of this embodiment as an example, the first installation process of the oil net device of this embodiment is as follows:

[0037] A. Install plastic sleeves in the four annular flanges 22, and insert the connecting parts 32 of the four mounting modules 3 into the plastic sleeves in the corresponding annular flanges 22, so as to complete the connection between the inner oil screen 2 and the mounting modules 3;

[0038] B. Apply force to the first elastic member 41 in the second mounting module 3b and the second elastic member 42 in the fourth mounting module 3d in the direction of being compressed, respectively, and place them in the lower part of the left outer oil net 1. Then remove the force. The first elastic member 41 in the second mounting module 3b and the second elastic member 42 in the fourth mounting module 3d respectively press against the left and right sides of the left outer oil net 1 under the action of the restoring force. At this time, the limiting protrusions 37 of the second mounting module 3b and the fourth mounting module 3d are inserted into the slots 12 at the lower end of the outer oil net 1. The second mounting module 3b and the fourth mounting module 3d are positioned and installed.

[0039] C. Turn over the inner oil net 2, and at the same time, apply forces to the first elastic member 41 in the first mounting module 3a and the second elastic member 42 in the third mounting module 3c in the direction of their respective compression. Under the action of the magnet, the first mounting module 3a and the third mounting module 3c are adsorbed on the upper part of the left outer oil net 1, and then the force is removed. The first elastic member 41 in the first mounting module 3a and the second elastic member 42 in the third mounting module 3c respectively press against the left and right sides of the left outer oil net 1 under the action of the restoring force. At this time, the first mounting module 3a and the third mounting module 3c are positioned and installed, and the oil net device is positioned and installed;

[0040] D. When the user needs to clean the outer oil net 1, the inner oil net 2 and the mounting module 3 separately, the user grasps and lifts up the first mounting module 3a and the third mounting module 3c to separate the magnet from the outer oil net 1, thereby disconnecting the first mounting module 3a and the third mounting module 3c from the outer oil net 1, and then lifts up the second mounting module 3b and the fourth mounting module 3d obliquely to disengage the limiting protrusions 37 on the second mounting module 3b and the fourth mounting module 3d from the slot 12 of the outer oil net 1, and then removes the annular flange 22 and the plastic sleeve of the inner oil net 2 from the connecting portion 32, so that the user can clean the outer oil net 1, the inner oil net 2 and the mounting module 3 separately. When the user has finished cleaning, the inner oil net 2 and the mounting module 3 are installed as in the above steps.

[0041] like Figure 6 and Figure 7 Shown is the preferred embodiment 2 of the utility model.

[0042] like Figure 7As shown, the difference between this embodiment 2 and embodiment 1 is that: still taking the left inner oil net 2 and four mounting modules 3 as an example, in this embodiment, the two mounting modules 3 (the first mounting module 3a and the second mounting module 3b) far away from the connecting member 23 are provided with elastic members 4, and the two mounting modules 3 (the third mounting module 3c and the fourth mounting module 3d) close to the connecting member 23 are not provided with elastic members 4, and the shaft sleeve 35 is omitted in the third mounting module 3c and the fourth mounting module 3d; in addition, the outer ends of the connecting parts 32 of the four mounting modules 3 are provided with threads matching with the nuts 5, and when the nuts 5 are installed on the connecting parts 32, the annular flange 22 is fixedly connected to the connecting parts 32.

[0043] In the second embodiment, the second elastic member 42 and the sleeve 35 in the first embodiment are omitted. Only through the compressed elastic member 4 in the first mounting module 3a and the second mounting module 3b, the inner oil net 2 of the oil net device can still be always subjected to the rightward force, so that the second mesh 21 on the left inner oil net 2 and the first mesh 11 on the outer oil net 1 are kept in an overlapping state, thereby simplifying the structure of part of the mounting module 3; and in the second embodiment, the sleeve 35 can be omitted in the third mounting module 3c and the fourth mounting module 3d (the sleeve 35 can also be omitted in the first mounting module 3a and the second mounting module 3b, which will not be repeated in this embodiment), and the connecting portion 32 at one end of the slide rod 33 is set to a threaded shape that can cooperate with the nut 5, so that the annular flange 22 is fixedly connected to the connecting portion 32, so that the inner oil net 2 and the mounting module 3 are integrated, so that the annular flange 22 drives the slide rod 33 to move left or right, which can also achieve the technical effect of the oil net device of the first embodiment, and can also simplify the structure of the mounting module 3, omit some components, and save production costs.

[0044] like Figures 8 to 10 Shown is the preferred embodiment 3 of the present utility model.

[0045] like Fig.10 As shown, the inner oil net 2 of this embodiment 3 is the same as that of embodiment 1, and the difference from embodiment 1 is that: still taking the left outer oil net 1, the inner oil net 2 and the four mounting modules 3 as an example, the structures and mounting orientations of the four mounting modules 3 are exactly the same, and the mounting modules 3 of this embodiment 3 are not provided with the second mounting groove 36 and the limiting protrusion 37, thereby simplifying the structure of the mounting modules 3, and the structures of the mounting modules 3 are all the same, which is convenient for manufacturers to produce and users to install.

[0046] like Fig. 9As shown, in order to realize the detachable connection between the mounting module 3 and the external oil net 1 of the present embodiment 3, a U-shaped flange 13 for mounting the mounting module 3 is provided on the external oil net 1, and the U-shaped flange 13 forms an accommodating cavity with an opening facing inward, and the mounting module 3 can be inserted into the accommodating cavity, so that the mounting module 3 is connected to the external oil net 1; and a blocking portion 14 is provided on one side of the U-shaped flange 13, and the blocking portion 14 can prevent the mounting module 3 from escaping from the accommodating cavity.

[0047] The inner oil nets 2 on both sides of the oil net device are installed in the same manner. Taking the inner oil net 2 on the left side of this embodiment as an example, the first installation process of the oil net device of this embodiment is as follows:

[0048] A. Install plastic sleeves in the four annular flanges 22, and insert the connecting parts 32 of the four mounting modules 3 into the plastic sleeves in the corresponding annular flanges 22, so as to complete the connection between the inner oil screen 2 and the mounting modules 3;

[0049] B. Insert the two installation modules 3 on the left into the two accommodating chambers on the left side of the outer oil net 1 respectively, so that the left side walls of the two installation modules 3 on the left side abut against the left side wall of the outer oil net 1;

[0050] C. Then push the connection parts 32 of the two installation modules 3 on the right side to move rightward (i.e. compress the second elastic member 42), and at the same time flip the inner oil net 2 so that the ends of the connection parts 32 of the two installation modules 3 on the right side abut against the right side wall of the outer oil net 1, and then remove the force on the two installation modules 3 on the right side. At this time, the two installation modules 3 on the right side move leftward under the restoring force of the second elastic member 42 until the left side walls of the two installation modules 3 on the right side abut against the blocking part 14, and the two installation modules 3 on the right side are inserted into the two accommodating cavities on the right side of the outer oil net 1, and at this time, the first elastic member 41 and the second elastic member 42 are both in a compressed state;

[0051] D. When the user needs to clean the outer oil net 1, the inner oil net 2 and the mounting module 3 separately, push the two mounting modules 3 on the right side to move to the right to make them out of their respective accommodating cavities, then slightly flip the inner oil net 2, and the two mounting modules 3 on the right side leave the outer oil net 1, then extract the two mounting modules 3 on the left side upwards to make the two mounting modules 3 on the left side out of their respective accommodating cavities, at this time, the disassembly of the two mounting modules 3 on the left side and the outer oil net is completed, and then the disassembly process of the inner oil net 2 and the four mounting modules 3 and the outer oil net 1 is completed, and finally the annular flange 22 and the plastic sleeve of the inner oil net 2 are removed from the connecting part 32, so that the user can clean the outer oil net 1, the inner oil net 2 and the mounting module 3 separately. When the user has finished cleaning, the installation method of the inner oil net 2 and the mounting module 3 is as described in the above steps.

Claims

1. An oil net device for a range hood, comprising an outer oil net (1) and two inner oil nets (2), wherein the two inner oil nets (2) are arranged on the left and right sides of the outer oil net (1), the outer oil net (1) having a first mesh hole (11), and the inner oil net (2) having a second mesh hole (21), characterized in that: The invention also comprises a plurality of mounting modules (3) detachably connected to the outer oil net (1), wherein the mounting modules (3) comprise an outer shell (31) and a connecting portion (32) exposed from the outer shell (31), and the inner oil net (2) is detachably connected to the connecting portion (32). The mounting modules (3) maintain the oil net device in an initial state where the first mesh holes (11) and the second mesh holes (21) overlap via a compressed elastic member (4). The inner oil net (2) can be moved relative to the outer oil net (1) with the aid of the mounting modules (3) so that the overlapping area of ​​the first mesh holes (11) and the second mesh holes (21) is reduced until they are offset.

2. The oil screen device for a range hood according to claim 1, characterized in that: A connecting piece (23) is provided on the inner side of the inner oil net (2), and the connecting piece (23) is arranged on opposite sides of the two inner oil nets (2). The connecting piece (23) can drive the inner oil net (2) to move relative to the outer oil net (1) under the drive of a motor.

3. The oil screen device for a range hood according to claim 2, characterized in that: The elastic member (4) comprises a first elastic member (41) and a second elastic member (42); the first elastic member (41) is arranged in the mounting module (3) away from the connecting member (23), and the second elastic member (42) is arranged in the mounting module (3) close to the connecting member (23); the elastic coefficient of the first elastic member (41) is greater than the elastic coefficient of the second elastic member (42), so that the oil net device is kept in an initial state.

4. The oil screen device for a range hood according to claim 2, characterized in that: An elastic member (4) is provided in the installation module (3) away from the connecting member (23) to keep the oil net device in an initial state.

5. The oil screen device for a range hood according to claim 1, characterized in that: A sliding rod (33) is provided in the installation module (3), the elastic member (4) is sleeved on the sliding rod (33), one end of the sliding rod (33) is a connecting portion (32), the other end of the sliding rod (33) is fixed in the installation module (3), the connecting portion (32) is a rod body, and an annular flange (22) corresponding to the connecting portion (32) is provided on the inner oil net (2), and the annular flange (22) can be sleeved on the connecting portion (32).

6. The oil screen device for a range hood according to claim 5, characterized in that: The mounting module (3) is provided with a first mounting groove (34) for mounting the slide bar (33); one side of the first mounting groove (34) is provided with an opening connected to the outside, so that the connecting portion (32) is exposed from the housing (31) of the mounting module (3); and the slide bar (33) is provided with a limiting member (331) respectively abutting against the elastic member (4) and the annular flange (22); the limiting member (331) is installed at the opening and can move within the opening.

7. The oil screen device for a range hood according to claim 6, characterized in that: The slide bar (33) is sleeved with a shaft sleeve (35) capable of abutting against the first mounting groove (34); one end of the elastic member (4) abuts against the shaft sleeve (35) and the other end abuts against the limit member (331), so that the elastic member (4) is kept in a compressed state.

8. The oil screen device for a range hood according to claim 5, characterized in that: The outer end of the connecting portion (32) is provided with a thread that matches the nut (5); when the nut (5) is installed on the connecting portion (32), the annular flange (22) is fixedly connected to the connecting portion (32).

9. The oil screen device for a range hood according to claim 1, characterized in that: A second mounting groove (36) for mounting a magnet is provided in the mounting module (3), and the mounting module (3) is connected to the outer oil net (1) by attraction between the outer oil net (1) and the magnet.

10. The oil screen device for a range hood according to claim 1, characterized in that: The outer shell (31) is provided with a limiting protrusion (37), and the outer oil net (1) is provided with a slot (12) corresponding to the limiting protrusion (37). When the limiting protrusion (37) is inserted into the slot (12), the mounting module (3) is connected to the outer oil net (1).

11. The oil screen device for a range hood according to claim 1, characterized in that: The outer oil net (1) is provided with a U-shaped flange (13) for mounting the mounting module (3), the U-shaped flange (13) forming a receiving cavity with an opening facing inwards, and the mounting module (3) can be inserted into the receiving cavity.

12. The oil screen device for a range hood according to claim 11, characterized in that: A blocking portion (14) is provided on one side of the U-shaped flange (13), and the blocking portion (14) is capable of blocking the installation module (3) from escaping from the accommodating cavity.

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