Range hood

Abstract

The utility model discloses a range hood, which comprises a shell, the lower panel can rotate relative to the shell to be opened and closed; the oil cup is arranged in the shell and located on the rear side of the lower panel; the oil receiving disc is arranged above the oil cup, the periphery of the oil receiving disc is fixed to the corresponding wall face of the shell, and the oil receiving disc is provided with an oil leakage hole through which oil liquid passes and drops into the oil cup; the range hood further comprises a plugging assembly, the plugging assembly comprises an oil cup blocking piece which is located below the oil receiving disc and can move front and back, when the lower panel is in the open state, the oil cup blocking piece is located at the first position, the oil cup blocking piece corresponds to the lower portion of the oil leakage hole to plug the oil leakage hole at the moment, and the oil cup blocking piece keeps the trend of moving to the first position. When the lower panel is in the closed state, the oil cup blocking piece abuts against the lower panel and is located at a second position, the second position is behind the first position, and therefore the oil leakage hole is opened.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil fume purification device, especially an oil fume extractor. BACKGROUND

[0002] The oil fume extractor has become one of the indispensable kitchen household appliances in modern families. The oil fume extractor works by using the principle of fluid dynamics, sucking and discharging oil fume through a multi-wing centrifugal fan installed inside the oil fume extractor, and filtering some oil particles using a filter screen. The multi-wing centrifugal fan includes a volute, an impeller installed in the volute, and a motor driving the impeller to rotate. When the impeller rotates, a negative pressure suction force is generated at the center of the fan, which sucks the oil fume below the oil fume extractor into the fan, and the oil fume is collected and guided by the volute after being accelerated by the fan and then discharged outside.

[0003] The existing oil fume extractor usually has an oil cup placed outside the bottom of the machine shell, and in order not to leak oil, the length of the oil cup is consistent with the overall length of the oil fume extractor, as disclosed in the Chinese patent with the application number 202021703692.3 of the applicant. However, such an external long oil cup cannot be placed in the sink and is difficult to clean, and the area of the long oil cup to be cleaned is also large. Moreover, the oil cup is exposed outside the oil fume extractor, which may adhere to oil fume, and the external surface is difficult to maintain, causing cleaning trouble.

[0004] Therefore, there are some short and small oil cups hidden inside the oil fume extractor body, such as the oil fume extractor disclosed in the Chinese patent with the application number 202221592147.0 of the applicant, which includes a machine shell, an oil cup arranged on the machine shell for receiving oil flowing from the inner wall of the machine shell, a mounting cavity with a mounting opening formed in the front part of the machine shell, the oil cup can be placed into and taken out of the mounting cavity through the mounting opening, and a cover plate is further arranged on the machine shell to shield the oil cup in the placed state. The oil collected on the oil fume can drop down to the oil receiving plate, and the oil receiving plate is further provided with an oil leakage nozzle, and the oil collected on the oil receiving plate can flow down from the oil leakage nozzle and enter the oil cup below.

[0005] Due to the high viscosity of oil, when the oil cup is taken down for cleaning, the oil receiving plate inside the oil fume extractor shell may have oil drops, which may cause the oil droplet holes on the oil receiving plate to leak and drip into the shell. The common solution may be to use a valve to manually or motor-drivenly close, but the structure is relatively complex, and the manual user experience is not good, and the electrically driven has problems such as cost and failure rate. In addition, since the hidden oil cup is embedded in the machine shell, it may be fixed by clamping the oil cup to some extent. When the oil cup filled with oil is taken out, the oil in the oil cup may be splashed out due to the clamping.

[0006] Therefore, further improvement is needed. SUMMARY

[0007] The first technical problem to be solved by the utility model is to provide a range hood which can avoid oil drops from falling into the shell during the process of taking out the oil cup and after the oil cup is taken out.

[0008] The second technical problem to be solved by the utility model is to provide a range hood which can realize the process of taking out the oil cup without jamming and avoid the oil liquid in the oil cup from splashing out.

[0009] The technical scheme adopted by the utility model to solve the above first technical problem is as follows: a range hood comprises:

[0010] a shell;

[0011] a lower panel which can rotate relative to the shell to open and close;

[0012] an oil cup which is arranged in the shell and located at the rear side of the lower panel; and

[0013] an oil receiving disc which is arranged above the oil cup, the periphery of the oil receiving disc is fixed with the corresponding wall surface of the shell, and the oil receiving disc is provided with oil leakage holes through which the oil liquid can drip into the oil cup; and

[0014] The range hood further comprises a plugging assembly, the plugging assembly comprises an oil cup baffle which can move forward and backward and is located below the oil receiving disc, when the lower panel is in the open state, the oil cup baffle is in the first position, at this time, the oil cup baffle corresponds to the lower side of the oil leakage hole to plug the oil leakage hole, and the oil cup baffle keeps the tendency of moving to the first position; when the lower panel is in the closed state, the oil cup baffle abuts against the lower panel to be in the second position, the second position is backward relative to the first position, so that the oil leakage hole is opened.

[0015] By arranging the plugging assembly, the closing of the lower panel adopts the linkage mode, when the lower panel is opened, the upper end of the oil cup will not drip oil, when the lower panel is closed, the oil path normally flows to the oil cup, during the process of taking out the oil cup and after the oil cup is taken out, the oil drops can be avoided from falling into the shell, manual operation is not needed, and there is no electric element, so that the reliability is high and the cost is low.

[0016] Further, the plugging assembly further comprises a first fixing shaft, the oil cup baffle is provided with a first sliding groove, the first fixing shaft penetrates through the bottom of the oil receiving disc and penetrates into the first sliding groove, the first fixing shaft can move forward and backward along the first sliding groove, so that the oil cup baffle is slidably hung below the oil receiving disc.

[0017] To facilitate the automatic plugging of the oil cup baffle of the plugging assembly to the oil leakage hole when the lower panel is opened, the plugging assembly further comprises an elastic member, one end of the elastic member is fixed relative to the shell, and the other end of the elastic member is fixed relative to the oil cup baffle, so that the oil cup baffle keeps moving forward to plug the oil leakage hole.

[0018] Preferably, to facilitate the arrangement of the elastic member, the plugging assembly further comprises a second fixing shaft, the elastic member corresponds to two second fixing shafts, a second sliding groove is further formed in the oil cup baffle, one end of the elastic member is fixed to the shell directly or indirectly through one of the second fixing shafts, and the other end of the elastic member is fixed to the oil cup baffle through the other second fixing shaft, the second fixing shaft penetrates into the second sliding groove and can move forward and backward along the second sliding groove.

[0019] Preferably, the shape of the oil cup baffle is that the oil cup baffle comprises a first baffle and second baffles located on the left and right sides of the first baffle, the front side end of the second baffle protrudes forward beyond the front side end of the first baffle, so that the first baffle and the second baffles integrally form a U-shaped structure with the opening facing forward, the first baffle cooperates with the oil leakage hole, and the second baffles cooperate with the lower panel.

[0020] To avoid damaging the lower panel, the front side end of the second baffle is formed in a rolled edge.

[0021] Further, the shell further comprises a lower cover plate, the lower cover plate comprises a cover plate body and a mounting opening formed in the cover plate body, the oil cup is mounted to the lower cover plate through the mounting opening, and an opening for the second baffle to pass through is further formed in the cover plate body, so that the lower cover plate can be used for mounting the oil cup, and the lower cover plate avoids interfering with the oil cup baffle.

[0022] Further, to facilitate the mounting of the oil cup, the shell further comprises a lower cover plate, the lower cover plate comprises a cover plate body and a mounting opening formed in the cover plate body, and the oil cup is mounted to the lower cover plate through the mounting opening.

[0023] The lower cover plate further comprises a rolled edge formed on the cover plate body, the rolled edge is formed around the mounting opening and is bent away from the lower panel by the cover plate body, so that the space between the rolled edges forms a mounting cavity, the mounting opening and the mounting cavity are communicated, and the oil cup is at least partially located in the mounting cavity and is supported between the rolled edges.

[0024] The technical solution adopted by the utility model to solve the second technical problem is that the oil cup comprises a front side wall, the plugging assembly further comprises a support member that moves synchronously with the oil cup baffle, and the support member is located in the oil cup and can abut against the inner surface of the front side wall of the oil cup.

[0025] The lower cover plate is provided with a pressing edge on the flange of the upper edge of the installation opening, which protrudes downward and abuts against the outer surface of the front side wall of the oil cup when the lower panel is closed, and the front side wall is located in front of the pressing edge when the lower panel is opened.

[0026] The pressing edge serves as a limiting structure after the oil cup is installed, so that the oil cup is stably installed on the lower cover plate, and the movement of the oil cup blocking piece can release the limitation on the oil cup when the lower panel is opened, so that the subsequent process of taking out the oil cup is not jammed, the action is more smooth, and the oil in the oil cup is prevented from spilling out.

[0027] Further, to ensure that the oil cup is installed in place, the side of the lower panel facing the inside of the shell is also provided with a stopper, which presses the oil cup when the lower panel is closed.

[0028] Preferably, to facilitate the collection of oil and the flow of oil to the oil cup, the oil receiving disc is concave from the periphery to the middle and downward as a whole, and the oil leakage hole is arranged at the lowest part of the oil receiving disc.

[0029] Preferably, the connection mode of the lower panel and the shell is that the side of the lower panel facing the inside of the shell is provided with a lower panel support, the lower panel support is provided with a clamping pawl and a hinge, the clamping pawl is located above the hinge, the shell is provided with a clamping buckle corresponding to the clamping pawl, the clamping buckle and the clamping pawl are in clamping engagement, and the hinge is used to rotationally connect the lower panel to the shell at a position close to the lower end.

[0030] Compared with the prior art, the utility model has the advantages that: by setting the plugging assembly, the closing of the lower panel adopts a linkage mode, the upper end of the oil cup will not drip oil when the lower panel is opened, the oil path normally flows to the oil cup when the lower panel is closed, and oil dripping in the shell can be avoided during the process of taking down the oil cup and after the oil cup is taken down, without manual operation and electric elements, and the reliability is high and the cost is low; the pressing edge serves as a limiting structure after the oil cup is installed, so that the oil cup is stably installed on the lower cover plate, and the movement of the oil cup blocking piece can release the limitation on the oil cup when the lower panel is opened, so that the subsequent process of taking out the oil cup is not jammed, the action is more smooth, and the oil in the oil cup is prevented from spilling out. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a lower panel assembly opening state schematic view of the range hood of the utility model embodiment;

[0032] Figure 2 It is Figure 1 It is a schematic view of the hidden lower cover plate and the clamping buckle;

[0033] Figure 3 It is Figure 1 It is a sectional view of the hidden fan frame of the range hood;

[0034] Figure 4 is a partial Ⅱ enlarged schematic view of Figure 3 ;

[0035] Figure 5 is a schematic view of the oil collecting disc, the oil cup and the plugging assembly of the range hood according to the embodiment of the utility model (the plugging state);

[0036] Figure 6 is a schematic view of the oil collecting disc and the plugging assembly of the range hood according to the embodiment of the utility model (the plugging state);

[0037] Figure 7 is an exploded structural schematic view of the oil collecting disc, the oil cup and the plugging assembly of the range hood according to the embodiment of the utility model;

[0038] Figure 8 is a schematic view of the lower cover plate of the range hood according to the embodiment of the utility model;

[0039] Figure 9 is a partial Ⅱ enlarged schematic view of Figure 8 ;

[0040] Figure 10 is a schematic view of the lower panel assembly of the range hood according to the embodiment of the utility model in the closed state;

[0041] Figure 11 is a sectional view of the range hood according to Figure 10 concealing the fan frame;

[0042] Figure 12 is a partial Ⅲ enlarged schematic view of Figure 11 ;

[0043] Figure 13 is a schematic view of the oil collecting disc and the plugging assembly of the range hood according to the embodiment of the utility model (the opening state)。 DETAILED DESCRIPTION

[0044] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions.

[0045] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the embodiments disclosed by the utility model can be arranged in different directions, so these terms indicating the direction are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more features.

[0046] Referring to Figures 1 to 7 An oil fume extractor is a side suction type oil fume extractor, comprising a shell 1, a front side of the shell 1 forms an air inlet 11, and a smoke baffle 2 capable of opening and closing the air inlet 11 is arranged on the front side of the shell 1. When the oil fume extractor is working, the smoke baffle 2 is opened, so that the oil fume enters from the air inlet 11. A fan frame 4 is arranged on the shell 1, and a fan (not shown) can be arranged in the fan frame 4, and the fan can also be arranged in the shell 1.

[0047] The front side of the shell 1 is also provided with a lower panel assembly, which comprises a lower panel 31 located below the smoke baffle 2 and a connecting structure for connecting with the shell 1. The lower panel 31 is arranged on the front side of the shell 1 and can rotate relative to the shell 1 and can be manually opened and closed. For this purpose, the side of the lower panel 31 towards the inside of the shell 1 is provided with a lower panel support 32, the connecting structure comprises a catch 33 and a hinge 34 arranged on the lower panel support 32, and the catch 33 is located above the hinge 34. The position corresponding to the catch 33 of the shell 1 is provided with a catch 12, so that the position fixing when the lower panel 31 is closed can be realized through the clamping cooperation of the catch 12 and the catch 33, and the lower panel 31 can be manually opened. The hinge 34 is used to make the lower panel 31 rotatably connected with the shell 1 at a position close to the lower end, the position corresponding to the hinge 34 in the shell 1 is provided with a hinge support 13, the hinge 34 and the hinge support 13 are rotatably connected, and the rotation axis of the hinge 34 extends along the left-right direction.

[0048] When the oil fume extractor is working normally, the lower panel 31 is closed. Only when it is necessary to clean the waste oil or clean the inner cavity and the impeller of the oil fume extractor, the lower panel 31 needs to be opened, and when it is necessary to disassemble the impeller, the smoke baffle 2 will be opened at a large angle to ensure that the impeller can be taken out.

[0049] Referring to Figure 2 andFigure 12 The oil cup 6 is a small oil cup in that its width in the left-right direction is smaller than the width of the shell 1, and preferably the width of the oil cup 6 is about 1 / 2 of the width of the shell 1, and the oil cup 6 can be arranged at the middle position in the left-right direction in the shell 1 and at the rear side of the lower panel 31. The shell 1 further comprises a lower cover plate 14 which is arranged below the air inlet 11 and at the side of the lower panel 31 facing the inside of the shell 1. The lower cover plate 14 is provided with a mounting hole 141 through which the oil cup 6 can be arranged in the shell 1. The oil cup 6 has a front side wall 61 at the front side of the whole, which can be flush with the mounting hole 141 or slightly recessed behind the mounting hole 141. The above-mentioned snap buckle 12 is arranged on the lower cover plate 14, and the hinge bracket 13 is fixed to the side of the lower cover plate 14 away from the lower panel 31, and the hinge 34 is connected to the hinge bracket 13 through the lower cover plate 14.

[0050] The lower cover plate 14 comprises a cover plate body 142, and the above-mentioned mounting hole 141 is arranged on the cover plate body 142. The lower cover plate 14 further comprises a flange 143 formed on the cover plate body 142, which is preferably formed around the mounting hole 141 and is bent away from the lower panel 31 from the cover plate body 142. Thus, the space between the flanges 143 constitutes a mounting cavity 144, and the mounting hole 141 and the mounting cavity 144 are in communication. The above-mentioned oil cup 6 is at least partially arranged in the mounting cavity 144 and is supported between the flanges 143.

[0051] The shell 1 is provided with a sealing assembly 51 and an oil receiving plate 52, and the oil receiving plate 52 is arranged above the oil cup 6 and is fixed to the corresponding wall surface of the shell 1 (such as the front side and the lower cover plate 14). The oil in the shell 1 flows into the oil receiving plate 52. The oil receiving plate 52 is concave from the periphery to the middle and downward as a whole, thus constituting a structure of an oil collecting groove. The lowest part of the oil receiving plate 52 is provided with an oil leakage hole 521, and the oil leakage hole 521 is opposite to the position of the oil cup 6. The oil can enter the oil cup 6 through the oil leakage hole 521.

[0052] The blocking assembly 51 comprises a first baffle 511, a second baffle 512, an elastic member 513, a first fixed shaft 514 and a second fixed shaft 515, which are located above the oil cup 6. The first baffle 511 cooperates with the oil leakage hole 521 and is arranged below the oil receiving disc 52. The oil leakage hole 521 can be opened and closed by moving the first baffle 511 forward and backward. The second baffle 512 is preferably integrally formed with the first baffle 511 and is arranged adjacent to the first baffle 511, such as on the left side, the right side or both sides. The first baffle 511 and the second baffle 512 constitute the oil cup baffle. In this embodiment, the second baffle 512 has two parts, which are arranged on the left and right sides of the first baffle 511 respectively. The length of the second baffle 512 in the front-back direction can be greater than that of the first baffle 511. The front end of the second baffle 512 protrudes forward beyond the front end of the first baffle 511, so that the first baffle 511 and the second baffle 512 form a U-shaped structure with the opening facing forward. Alternatively, the oil cup baffle can also have an opening on it. The opening can be aligned with or misaligned with the oil leakage hole 521 in the moving process to open or close the oil leakage hole 521.

[0053] The second baffle 512 is in sliding connection with the oil receiving disc 52. The first baffle 512 has a first sliding groove 5121 extending in the front-back direction. The first fixed shaft 514 passes through the bottom of the oil receiving disc 52 and penetrates into the first sliding groove 5121. The first fixed shaft 515 can move forward and backward along the first sliding groove 5121. Thus, the second baffle 512 is in sliding connection with the oil receiving disc 52. The first fixed shaft 514 suspends the second baffle 512 below the oil receiving disc 52 and limits the up-down position of the second baffle 512. Preferably, each second baffle 512 corresponds to two first fixed shafts 514 arranged in front and back. In addition, since the second baffle 512 is located above the oil cup 6, it corresponds to the position of the cover plate body 142 above the folded edge 143. To avoid blocking the second baffle 512, the cover plate body 142 is provided with an opening 146 for the second baffle 512 to pass through, so as to cooperate with the lower panel 31. At the same time, the shape and size of the opening 146 are matched with the second baffle 152 respectively, which can further limit the position of the second baffle 512.

[0054] The second baffle 512 is also provided with a second sliding slot 5122 extending frontward and rearward. Each second baffle 512 corresponds to an elastic member 513, and each elastic member 513 corresponds to two second fixing shafts 515. One end of each elastic member 513 is fixed to the lower cover plate 14 directly or indirectly via a second fixing shaft 515 (for example, the elastic member 513 is fixed to a reinforcing plate assembly as described in the background art, and the second fixing shaft 515 is fixed to the reinforcing plate assembly), and the other end of each elastic member 513 is connected to another second fixing shaft 515, which penetrates the second sliding slot 5122 and can move frontward and rearward along the second sliding slot 5122. Preferably, the elastic member 513 is a tension spring. Thus, the second baffle 512 (the first baffle 511) has a tendency to move frontward to block the oil leakage hole 521.

[0055] When the oil cup needs to be taken out, the lower panel 31 needs to be opened first, so that the lower panel 31 no longer applies a rearward pushing force to the second baffle 512. At this time, under the restoring force of the elastic member 513, the second baffle 512 (the first baffle 511) is pulled to move frontward to the first position of blocking and closing the oil leakage hole 521, as shown in Figure 3 、 Figure 4 and Figure 6 . Thus, when the oil cup 6 is taken out after the lower panel 31 is opened, the oil in the oil receiving disc 52 will not drip into the housing 1.

[0056] In the closed state of the lower panel 31 of the range hood, as shown in Figure 10 、 Figure 11 and Figure 13 , the lower panel 31 abuts against the front end of the second baffle 512, thereby pushing the second baffle 512 (the first baffle 511) rearward to a position where the first baffle 511 is located at the rear side of the oil leakage hole 521, so that the oil leakage hole 521 is in an open state, and the oil cup baffle is in the second position which is rearward relative to the first position, and the oil can normally enter the oil cup 6 from the oil receiving disc 52. To avoid scratching the lower panel 31 by the second baffle 512, the front end of the second baffle 512 can be formed in the shape of a curled edge 5123. In this state, the elastic member 513 is in a stretched state.

[0057] Again referring to Figures 7 to 9The blocking assembly 51 further comprises a support 516 which moves synchronously with the second blocking piece 512 and can be connected with the second blocking piece 512 or integrally formed by bending. The support 516 is at least partially located below the second blocking piece 512 and can be located in the oil cup 6, so that it can abut against the inner side of the front side wall 61 of the oil cup 6 in the installed state of the oil cup 6. The lower edge 143 of the lower cover plate 14 located on the upper edge of the installation opening 141 is provided with a pressing edge 145 which protrudes downward and has a generally triangular cross section. The pressing edge 145 serves as a limiting structure of the oil cup 6 and can keep the position of the oil cup 6 stable in the installed state.

[0058] When the lower panel 31 is closed, referring to Figure 11 and Figure 12 , the pressing edge 145 abuts against the outer surface of the front side wall 61 of the oil cup 6, while the support 516 abuts against the inner surface of the front side wall 61 of the oil cup 6. When the oil cup 6 needs to be taken out and the lower panel 31 is opened, as described above, the first blocking piece 511 and the second blocking piece 512 will move forward under the action of the elastic member 513, thereby pushing the oil cup 6 forward and making the front side wall 61 of the oil cup 6 pass over the pressing edge 145. After that, when the oil cup 6 is taken out, it will not be stuck due to the need to exert force to pass over the limiting structure, so that the process of taking out the oil cup 6 is smooth and the action is more fluent, and it will not cause the oil to splash due to the sticking.

[0059] The side of the lower panel 31 facing the inside of the shell 1 is further provided with a blocking block 35. When the oil cup 6 needs to be put back into the installation cavity 145 in the lower cover plate 14 after being cleaned, the blocking block 35 of the lower panel 31 can press the oil cup 6 when the lower panel 31 is closed, so that the oil cup 6 passes over the limiting structure provided on the lower cover plate 14.

Claims

1. A range hood, comprising: a housing (1); a lower panel (31) rotatable relative to the housing (1) to open and close; an oil cup (6) arranged in the housing (1) and located at a rear side of the lower panel (31); and an oil receiving tray (52) arranged above the oil cup (6), a periphery of the oil receiving tray (52) being fixed to a corresponding wall surface of the housing (1), and the oil receiving tray (52) being provided with oil leakage holes (521) for oil to drip into the oil cup (6) through the oil leakage holes (521); characterized in that: the range hood further comprises a blocking assembly (51) including an oil cup baffle (511) movable forward and backward below the oil receiving tray (52), the oil cup baffle (511) being in a first position when the lower panel (31) is in an open state, at which time the oil cup baffle (511) blocks the oil leakage holes (521) corresponding to below the oil leakage holes (521), and the oil cup baffle (511) maintains a tendency to move to the first position; the oil cup baffle (511) is in a second position abutting against the lower panel (31) when the lower panel (31) is in a closed state, the second position being rearward relative to the first position, so that the oil leakage holes (521) are opened.

2. The hood according to claim 1, characterized in that: the blocking assembly (51) further comprises a first fixed shaft (514), the oil cup baffle (511) is provided with a first sliding groove (5121), the first fixed shaft (514) penetrates through a bottom of the oil receiving tray (52) and penetrates into the first sliding groove (5121), and the first fixed shaft (514) is movable forward and backward along the first sliding groove (5121), so that the oil cup baffle (511) is slidably suspended below the oil receiving tray (52).

3. The hood according to claim 1, characterized in that: the blocking assembly (51) further comprises a resilient member (513), one end of the resilient member (513) is fixed relative to the housing (1), and the other end of the resilient member (513) is fixed relative to the oil cup baffle (511), so that the oil cup baffle (511) maintains a tendency to move forward to block the oil leakage holes (521).

4. The hood according to claim 3, characterized in that: the blocking assembly (51) further comprises a second fixed shaft (515), the resilient member (513) corresponds to two second fixed shafts (515), the oil cup baffle (511) is further provided with a second sliding groove (5122), one end of the resilient member (513) is directly or indirectly fixed to the housing (1) through one of the second fixed shafts (515), and the other end of the resilient member (513) is fixed to the oil cup baffle (511) through the other second fixed shaft (515), the second fixed shaft (515) penetrates into the second sliding groove (5122) and is movable forward and backward along the second sliding groove (5122).

5. The hood according to claim 1, characterized in that: the oil cup baffle (511) includes a first baffle (511) and a second baffle (512) located on left and right sides of the first baffle (511), a front side end portion of the second baffle (512) protrudes forward beyond a front side end portion of the first baffle (511), so that the first baffle (511) and the second baffle (512) integrally form a U-shaped structure with an opening facing forward, the first baffle (511) cooperates with the oil leakage holes (521), and the second baffle (512) cooperates with the lower panel (31).

6. The hood according to claim 5, characterized in that: the front side end portion of the second baffle (512) is configured as a rolled edge (5123).

7. The hood according to claim 5, characterized in that: The shell (1) further comprises a lower cover plate (14), the lower cover plate (14) comprises a cover plate body (142) and a mounting opening (141) formed on the cover plate body (142), the oil cup (6) is mounted on the lower cover plate (14) through the mounting opening (141), and the cover plate body (142) is further provided with an opening (146) for the second baffle (512) to pass through.

8. The hood according to claim 1, characterized in that: The shell (1) further comprises a lower cover plate (14), the lower cover plate (14) comprises a cover plate body (142) and a mounting opening (141) formed on the cover plate body (142), the oil cup (6) is mounted on the lower cover plate (14) through the mounting opening (141), The lower cover plate (14) further comprises a flange (143) formed on the cover plate body (142), the flange (143) is formed around the mounting opening (141) and is bent away from the lower panel (31) from the cover plate body (142), so that the space between the flanges (143) forms a mounting cavity (144), the mounting opening (141) and the mounting cavity (144) are communicated, and the oil cup (6) is at least partially located in the mounting cavity (144) and is supported between the flanges (143).

9. The hood according to claim 8, characterized in that: The oil cup (6) comprises a front side wall (61), and the sealing assembly (51) further comprises a supporting piece (516) which moves synchronously with the oil cup baffle and is located in the oil cup (6) and can abut against the inner surface of the front side wall (61) of the oil cup (6); The flange (143) of the lower cover plate (14) on the upper edge of the mounting opening (141) is provided with a pressing edge (145), the pressing edge (145) protrudes downward, when the lower panel (31) is closed, the pressing edge (145) abuts against the outer surface of the front side wall (61) of the oil cup (6), and when the lower panel (31) is opened, the front side wall (61) is located in front of the pressing edge (145).

10. The hood according to claim 9, characterized in that: The side of the lower panel (31) facing into the shell (1) is further provided with a stop block (35), and the stop block (35) presses the oil cup (6) when the lower panel (31) is closed.

11. The hood according to claim 1, characterized in that: The oil receiving disc (52) is entirely concave from the periphery to the middle and downward, and the oil leakage hole (521) is formed at the lowest part of the oil receiving disc (52).

12. The hood according to claim 1, characterized in that: The side of the lower panel (31) facing into the shell (1) is provided with a lower panel support (32), the lower panel support (32) is provided with a clamping paw (33) and a hinge (34), the clamping paw (33) is located above the hinge (34), the shell (1) is provided with a clamping buckle (12) corresponding to the clamping paw (33), the clamping buckle (12) and the clamping paw (33) are clamped and matched, and the hinge (34) is used for rotationally connecting the lower panel (31) and the shell (1) at a position close to the lower end.

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