Isolation hood and range hood thereof

Abstract

A cavity is formed in the isolation hood, the bottom and the rear end of the isolation hood are respectively opened to form a lower opening and a rear opening, the lower opening and the rear opening are respectively communicated with the cavity, the isolation hood is provided with a top plate, and the top plate is provided with a top cover. An oil guide part extending backwards and downwards is integrally formed at the rear end of the top plate, and the oil guide part is obliquely arranged backwards and downwards when the isolation cover is in the open state and the closed state. The isolation hood is simple in structure, oil fume and oil drops on the isolation hood can be guided into the exhaust fume collecting hood, the oil drops can be reduced to flow back into the oil isolation hood, and the oil dripping problem caused by the fact that a large number of oil drops are accumulated in the isolation hood is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to an isolation cover and an oil fume extractor thereof. Background Art

[0002] For some wall-embedded range hoods, an inner hood air inlet and an inner hood air inlet cavity are provided on the inner hood assembly. A large amount of oil droplets accumulate inside the inner hood air inlet cavity. When the range hood panel glass is closed, the lowest point of the inner hood assembly is at its front end, and the accumulated oil droplets are likely to leak out from some areas of the inner hood air inlet cavity and leak onto the inner hood assembly, resulting in an oil leakage problem. Summary of the Invention

[0003] The utility model aims to solve at least one of the problems existing in the related prior art to a certain extent. For this purpose, the utility model provides an isolation cover, which has a simple structure and can not only guide the oil fume and oil droplets on the isolation cover into the smoke collecting hood, but also reduce the oil droplet backflow into the oil separation cover, avoiding a large accumulation of oil droplets inside the isolation cover and causing an oil dripping problem. The utility model also provides an oil fume extractor.

[0004] According to the above-provided isolation cover, it is realized through the following technical solutions:

[0005] An isolation cover has a cavity formed inside. The bottom and the rear end of the isolation cover are respectively open to form a lower opening and a rear opening, and the lower opening and the rear opening are respectively communicated with the cavity. The isolation cover has a top plate, and a oil guiding part extending backward and downward is integrally formed at the rear end of the top plate. The oil guiding part is arranged obliquely backward and downward both when the isolation cover is in the open state and the closed state.

[0006] In some embodiments, the included angle between the oil guiding part and the top plate is 120 - 160°.

[0007] In some embodiments, the inclination direction of the isolation cover in the open state is opposite to that in the closed state. The oil guiding part forms a first included angle with the horizontal plane in the open state, and the oil guiding part forms a second included angle with the horizontal plane in the closed state, and the second included angle is smaller than the first included angle.

[0008] In some embodiments, at least one notch is provided at the free end of the oil guiding part.

[0009] In some embodiments, the notch is in any one of an inverted "V" shape, an inverted "W" shape, an inverted "U" shape or an inverted "mountain" shape.

[0010] In some embodiments, the isolation cover also has a front plate and two side plates arranged opposite to each other, the rear ends of the two side plates are respectively bent toward the outside of the cavity to form a rear flange; and / or the lower ends of the front plate and the two side plates are respectively bent toward the outside of the cavity to form a lower flange.

[0011] In some embodiments, the rear flange is arranged to be inclined toward the rear and downward; and the lower flange is parallel to the top plate.

[0012] In some embodiments, a gap is formed between the front plate and the side plate, and the left end and / or the right end of the front plate is bent backward to form a first oil-blocking portion, which is attached to the inner side or outer side of the side plate and covers the gap; and / or the front end of the side plate is bent toward the front plate to form a second oil-blocking portion, which is attached to the inner side or outer side of the front plate and covers the gap.

[0013] According to the range hood provided above, it is implemented through the following technical solutions:

[0014] A range hood comprises: an inner cover assembly, wherein an air inlet and an air outlet are respectively provided at the bottom and rear side wall of the inner cover assembly; and an isolation cover as described above, wherein the isolation cover is arranged in the inner cover assembly and covers the outside of the air inlet, the isolation cover divides the internal space of the inner cover assembly into an air inlet chamber and a smoke isolation chamber, the air inlet chamber is respectively connected to the air inlet and the air outlet, and the free end of the oil guide portion passes through the air outlet and extends to the rear of the air outlet.

[0015] In some embodiments, an oil drain port is provided at the lower end of the rear side wall of the inner cover assembly, and the oil drain port includes a first oil outlet and / or a second oil outlet, the first oil outlet is connected to the air inlet chamber, and the second oil outlet is connected to the smoke isolation chamber.

[0016] In some embodiments, a smoke hood and a flap assembly are further included, wherein a mounting opening is opened on the front side of the smoke hood, the flap assembly is rotatably connected to the smoke hood and is used to open or close the mounting opening, the inner cover assembly can be movably inserted into the mounting opening and connected to the back side of the flap assembly, and the flap assembly can drive the inner cover assembly to extend out of the smoke hood or retract into the smoke hood when it rotates.

[0017] In some embodiments, an oil receiving box assembly is further included. The oil receiving box assembly is disposed below the inner cover assembly and is used to receive the oil stains flowing down from the oil guide portion and the inner cover assembly.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The isolation hood of the utility model is provided with a cavity, a lower opening and a rear opening, and an oil guide portion extending rearward and downward is integrally formed at the rear end of the top plate of the isolation hood. The structure is simple, not only can the oil smoke and oil droplets on the isolation hood be guided into the smoke collecting hood, but also the oil droplets on the oil guide portion can be prevented from flowing back into the oil isolation hood, thereby minimizing the oil droplets inside the oil isolation hood and solving the problem of oil dripping caused by a large amount of oil droplets accumulating inside the isolation hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the isolation cover in the embodiment of the utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the isolation cover in the embodiment of the utility model. Figure 2 ;

[0022] Figure 3 is a cross-sectional view of an isolation cover in an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure in which the isolation cover is installed in the inner cover assembly in the embodiment of the utility model;

[0024] Figure 5 It is a cross-sectional view of the isolation cover installed in the inner cover assembly in the embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the inner cover assembly in the embodiment of the utility model;

[0026] Figure 7 is an exploded view of the inner cover assembly in an embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the range hood in the embodiment of the utility model in an open state;

[0028] Fig. 9 is an exploded view of the range hood in the embodiment of the utility model in an open state;

[0029] Fig.10 It is an exploded view of the range hood in the embodiment of the utility model in a closed state.

[0030] In the figure: 1-isolation cover, 101-cavity, 102-lower opening, 103-rear opening, 11-top plate, 111-oil guide part, 112-notch, 12-front plate, 121-first oil baffle part, 122-mounting hole, 13-side plate, 131-rear flange, 132-lower flange;

[0031] 2-inner cover assembly, 201-air inlet, 202-air outlet, 203-air inlet chamber, 204-smoke isolation chamber, 205-first oil outlet, 206-second oil outlet, 207-oil guide part, 21-inner cover body, 22-inner cover rear plate, 23-fixed bracket, 24-oil guide plate;

[0032] 3-smoke hood, 301-installation port; 4-flap assembly; 5-oil collecting box assembly. DETAILED DESCRIPTION

[0033] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific implementation of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed for protection in the present invention.

[0034] Example 1

[0035] refer to Figure 1-3 The present embodiment provides an isolation cover, which is applied to a range hood, wherein a cavity 101 is formed inside the isolation cover 1, the bottom of the isolation cover 1 is open to form a lower opening 102 communicating with the cavity 101, and the rear end of the isolation cover 1 is open to form a rear opening 103 communicating with the cavity 101. In the present embodiment, the isolation cover 1 comprises a top plate 11, a front plate 12 and two side plates 13 arranged opposite to each other, wherein the top plate 11, the front plate 12 and the two side plates 13 are combined to form a cavity 101 opening downward and backward, wherein the top plate 11 constitutes the top of the cavity 101, the front plate 12 constitutes the front side wall of the cavity, and the two side plates 13 constitute the left and right side walls of the cavity 101.

[0036] Furthermore, an oil guide portion 111 extending backward and downward is integrally formed at the rear end of the top plate 11, and the oil guide portion 111 is arranged at an obtuse angle with the top plate 11. In this embodiment, the isolation cover 1 can be switched between an open state and a closed state, and the oil guide portion 111 is arranged to be tilted backward and downward when the isolation cover is in the open state and the closed state. Therefore, when the range hood is in the open state, the isolation cover 1 is also in the open state. Fig. 9 At this time, the isolation cover 1 can guide the oil smoke and oil droplets on the isolation cover into the smoke collection hood; when the range hood is in the closed state, the isolation cover 1 is also in the closed state, refer to Fig.10 Since the oil guide portion 111 is arranged tilted downward and rearward, the oil droplets formed on the oil guide portion 111 cannot flow back into the oil separator 1, and eventually drip into the smoke hood along the oil guide portion 111, thereby minimizing the oil droplets inside the oil separator 1 and solving the problem of oil dripping caused by a large amount of oil droplets accumulating inside the separator.

[0037] refer to Figure 3Specifically, the angle β between the oil guide portion 111 and the top plate 11 is 120-160°. In the present embodiment, the angle between the oil guide portion 111 and the top plate 11 is preferably 150±5°.

[0038] Specifically, the tilt direction of the isolation cover when in the open state is opposite to that of the isolation cover when in the closed state. In this embodiment, the isolation cover 1 is tilted downward and rearward when in the open state, and the isolation cover is arranged with the front end high and the rear end low, and the oil guide portion 111 forms a first angle θ1 with the horizontal plane in the open state, referring to Fig. 9 When the isolation cover 1 is in the closed state, it is tilted forward and downward. At this time, the isolation cover is arranged with a low front end and a high rear end, and the oil guide portion 111 is in the closed state and forms a second angle θ2 with the horizontal plane, reference Fig.10 , wherein the second angle θ2 is smaller than the first angle θ2, and the second angle θ2 is preferably 10±2°.

[0039] refer to Figure 1-3 In this embodiment, the oil guide portion 111 is formed by bending the right end of the top plate 11 toward the rear and lower part. Notches 112 are respectively provided on the left and right sides of the free end of the oil guide portion 111. The notch 112 is in an inverted "V" shape. Of course, the notch 112 can also be designed to be in an inverted "W" shape, an inverted "U" shape, or an inverted "mountain" shape. Therefore, under the action of the notch 112, the oil on the oil guide portion 111 is quickly converged to the lower edge of the oil guide portion 111 to form oil droplets, and the oil droplets on the lower edge of the oil guide portion 111 are prevented from spreading to the left and right sides, so that the oil droplets are quickly dropped into the smoke collecting hood of the range hood.

[0040] Furthermore, the rear ends of the two side panels 13 are respectively bent toward the outside of the cavity 101 to form rear flanges 131, and openings are provided on the rear flanges 131. In this embodiment, the rear flanges 131 are arranged to be inclined toward the rear and downward. The lower ends of the front panel 12 and the two side panels 13 are respectively bent toward the outside of the cavity 101 to form lower flanges 132. In this embodiment, the lower flanges 132 are parallel to the top panel 11. Therefore, see Figure 4 When the isolation cover 1 is installed inside the inner cover assembly 2 of the range hood, the two rear flanges cooperate with the rear side wall of the inner cover assembly 2, so that the rear end of the isolation cover 1 can be fixedly installed on the rear side wall of the inner cover assembly 2, and the lower flanges 132 of the front plate 12 and the two side plates 13 are respectively abutted against the bottom upper surface of the inner cover assembly 2 to form a reliable support, so that the isolation cover 1 is more stably and reliably installed in the inner cover assembly 2.

[0041] In addition, in order to fix the front end of the isolation cover 1 on the bottom front end of the inner cover assembly 2, mounting holes 122 for the connecting parts to pass through are respectively provided at the left and right ends of the front plate 12. The connecting parts are used to pass through the mounting holes 122 horizontally and are fastened to the fixed bracket 23 of the inner cover assembly 2.

[0042] Furthermore, a gap is formed between the front plate 12 and the side plate 13, and the left end and / or the right end of the front plate 12 is bent backward to form a first oil baffle 121, and the first oil baffle 121 is attached to the inner side or outer side of the side plate 13 and covers the gap. In this embodiment, the left and right ends of the front plate 12 are respectively bent backward to form the first oil baffle 121, and the two first oil baffles 121 are respectively attached to the outer side of the two side plates 13 and cover the gap. In this way, the oil droplets inside the isolation cover 1 can be prevented from flowing out from the gap between the front plate 12 and the side plate 13, and the laser welding process of the gap can be eliminated to reduce the manufacturing cost. In other embodiments, the front end of the side plate 13 can be bent toward the front plate 12 to form a second oil baffle, and the second oil baffle is attached to the inner side or outer side of the front plate 12 and covers the gap. At this time, the first oil baffle 121 can be eliminated or not.

[0043] Example 2

[0044] refer to Figure 4-10 , this embodiment provides a range hood, comprising an inner cover assembly 2 and an isolation cover as described in Example 1. At least one air inlet 201 is provided at the bottom of the inner cover assembly 2, and an air outlet 202 is provided at a position on the rear side wall of the inner cover assembly 2 corresponding to the air inlet 201, and the air outlet 202 and the air inlet 201 are respectively communicated with the internal space of the inner cover assembly 2. An isolation cover 1 is provided at a position inside the inner cover assembly 2 corresponding to the air inlet 201, and the isolation cover 1 is arranged outside the corresponding air inlet 201 and is connected to the inner cover assembly 2, and the isolation cover divides the internal space of the inner cover assembly 2 into an air inlet chamber 203 and a smoke isolation chamber 204, and the air inlet chamber 203 is respectively communicated with the air inlet 201 and the air outlet 202 to form an oil smoke channel for oil smoke to pass through, and the free end of the oil guide portion 111 passes through the air outlet 202 and extends to the rear of the air outlet 202, and is used to guide the oil smoke and oil droplets on the flow isolation cover 1 into the smoke collecting hood 3, refer to Fig. 9 .

[0045] refer to Figure 5-7 Furthermore, an oil discharge port is provided at the lower end of the rear side wall of the inner cover assembly 2, and the oil discharge port includes a first oil outlet 205 and / or a second oil outlet 206, the first oil outlet 205 is connected to the air inlet chamber 203, and the second oil outlet 206 is connected to the smoke-proof chamber 204. Thus, through the first oil outlet 205, it is convenient to discharge the oil droplets formed in the air inlet chamber 203 out of the air inlet chamber 203 in time, so as to prevent the accumulation of oil droplets from easily leaking out of the air inlet chamber 203 and leaking into the smoke-proof chamber 204, thereby causing oil leakage; through the second oil outlet 206, it is convenient to discharge the oil droplets leaking into the smoke-proof chamber 204 out of the smoke-proof chamber 204 in time.

[0046] refer to Figure 5Furthermore, an oil introduction portion 207 is provided at the rear end of the bottom of the inner cover assembly 2. The oil introduction portion 207 is located below the air outlet and the oil discharge port, and is used to receive the oil stains flowing down from the oil discharge port, and guide the oil stains to the inside of the smoke collection hood of the range hood. Specifically, the oil introduction portion 207 includes a lower oil introduction edge, which is inclined or bent in the vertical direction, and the front end of the lower oil introduction edge is connected or abutted with the bottom of the inner cover assembly 2, and the rear end extends backward to the rear and lower bottom of the inner cover assembly 2. Of course, the oil introduction portion 207 may also include an upper oil introduction edge, which is attached to the rear end of the bottom of the inner cover assembly 2, and the lower oil introduction edge is formed by the front end of the upper oil introduction edge being integrally formed and bent toward the rear and lower, and an oil introduction groove opening toward the rear is formed between the lower oil introduction edge and the upper oil introduction edge, and the oil introduction groove is connected to the corresponding oil outlet.

[0047] refer to Figure 5-7 Specifically, the inner cover assembly 2 includes an inner cover body 21, which has a concave cavity opening upward, and is formed by an inner cover bottom plate, two inner cover side plates, a front baffle and a rear baffle, wherein the left and right ends of the inner cover bottom plate are integrally bent upward to form two inner cover side plates, and the front and rear ends of the inner cover bottom plate are respectively bent upward to form a front baffle and a rear baffle. Two air inlets 201 and a mounting hole are provided at the bottom of the inner cover body 21 (i.e., the inner cover bottom plate), and the mounting hole is located between the two air inlets 201 and is used to install the lighting assembly; air outlets 202 are provided at the rear baffles of the inner cover body 21. Two isolation covers 1 are installed in the inner cover body 21, and the two isolation covers 1 are respectively covered outside the two air inlets 201 and connected to the inner cover body 21, wherein each isolation cover 1 and the bottom of the inner cover body 21 (i.e., the inner cover bottom plate) are surrounded by the area inside the isolation cover 1 to form an air inlet cavity 203, and the area of ​​the inner cover body 21 outside the isolation cover 1 constitutes an isolation cavity 204.

[0048] The inner cover assembly 2 further includes an inner cover rear plate 22 and / or a fixing bracket 23. The inner cover rear plate 22 is disposed behind the inner cover body 21 and above the air outlet 202. The left and right ends of the inner cover rear plate 22 are respectively connected to the two inner cover side plates of the inner cover body 21, and the lower end of the inner cover rear plate 22 is connected to the upper end of the rear baffle of the inner cover body 21. It is particularly noted that the inner cover rear plate 22 can be designed to be integrally formed with the rear baffle of the inner cover body 21.

[0049] At least one fixed bracket 23 is provided in the air inlet cavity 203 in front of the air inlet 201, and the front plate 12 of the isolation cover 1 is detachably connected to the inner cover bottom plate of the inner cover body 21 through the fixed bracket 23, and the two rear flanges 131 at the rear end of the isolation cover 1 are connected to the rear stop edge of the inner cover body 21.

[0050] The inner cover assembly 2 also includes an oil guide plate 24, which includes an oil guide portion 207 and a connecting portion (not shown in the figure). The oil guide portion 207 is arranged at the rear end of the bottom of the inner cover body 21 and is located directly below the oil discharge port and the air outlet 202, and is used to receive the oil dirt flowing down from the oil discharge port and the air outlet 202, and guide the oil dirt to the inside of the smoke collecting hood of the range hood. The connecting portion is fixedly connected to the back of the rear baffle of the inner cover body 21, and is located outside the air outlet and the oil outlet, and the lower end of the connecting portion is fixedly connected to the oil guide portion 207.

[0051] Example 3

[0052] refer to Figure 8-10 The difference between this embodiment and the second embodiment is that it further comprises a smoke hood 3 and a flap assembly 4, and a mounting opening 301 for the inner cover assembly 2 to pass through is provided on the front of the smoke hood 3. The upper end of the flap assembly 4 is rotatably connected to the smoke hood 3 and is used to open or close the mounting opening 301. The inner cover assembly 2 can be movably inserted into the mounting opening 301 and connected to the upper end of the back of the flap assembly 4. When the flap assembly 4 rotates, it can drive the inner cover assembly 2 to extend out of the smoke hood 3 through the mounting opening 301, so that the air inlet 201 of the inner cover assembly 2 extends out of the smoke hood 3, or drive the inner cover assembly 2 to retract into the smoke hood 3 through the mounting opening 301, so as to hide the inner cover assembly 2 inside the smoke hood 3 and behind the flap assembly 4, and prevent the inner cover assembly 2 from being exposed.

[0053] Furthermore, it also includes an oil collecting box assembly 5, which is installed at the installation port of the smoke hood 3 and is located below the inner cover assembly 2. When the range hood is in the open state, the oil collecting box assembly 5 is used to receive the oil stains flowing down from the oil guide part 111 and the inner cover assembly 2, and collect this part of the oil stains to a set position inside the smoke hood 4.

[0054] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An isolation cover, characterized in that: A cavity (101) is formed inside the isolation cover. The bottom and the rear end of the isolation cover are respectively open to form a lower opening (102) and a rear opening (103). The lower opening (102) and the rear opening (103) are respectively communicated with the cavity (101). The isolation cover has a top plate (11). At the rear end of the top plate (11), an oil guiding part (111) extending backward and downward is integrally formed. The oil guiding part (111) is arranged obliquely backward and downward both when the isolation cover is in the open state and the closed state.

2. An isolation cover according to claim 1, characterized in that: The included angle between the oil guiding part (111) and the top plate (11) is 120° - 160°.

3. The isolation cover according to claim 1, characterized in that: When the isolation cover is in the open state, the inclination direction is opposite to that in the closed state. The oil guiding part (111) forms a first included angle with the horizontal plane in the open state, and the oil guiding part (111) forms a second included angle with the horizontal plane in the closed state. The second included angle is smaller than the first included angle.

4. The isolation cover according to claim 1, characterized in that: At least one notch (112) is provided at the free end of the oil guiding part (111).

5. An isolation cover according to claim 4, characterized in that: The notch (112) is in any one of an inverted "V" shape, an inverted "W" shape, an inverted "U" shape or an inverted "mountain" shape.

6. The isolation cover according to claim 1, characterized in that: The isolation cover further has a front plate (12) and two side plates (13) arranged oppositely. The rear ends of the two side plates (13) are respectively bent outward toward the outside of the cavity (101) to form rear flanges (131); and / or the lower ends of the front plate (12) and the two side plates (13) are respectively bent outward toward the outside of the cavity (101) to form lower flanges (132).

7. An isolation cover according to claim 6, characterized in that: The rear flange (131) is arranged obliquely backward and downward; the lower flange (132) is parallel to the top plate (11).

8. The isolation cover according to claim 6, characterized in that: A gap is formed between the front plate (12) and the side plate (13). The left end and / or the right end of the front plate (12) is bent backward to form a first oil blocking part (121). The first oil blocking part (121) fits on the inner side or the outer side of the side plate (13) and covers the gap; and / or The front end of the side plate (13) is bent toward the front plate (12) to form a second oil blocking part. The second oil blocking part fits on the inner side or the outer side of the front plate (12) and covers the gap.

9. A range hood, characterized in that: Comprising: An inner cover assembly (2). An air inlet (201) and an air outlet (202) are respectively provided at the bottom and the rear side wall of the inner cover assembly (2). An isolation cover as described in any one of claims 1 - 8. The isolation cover is arranged inside the inner cover assembly (2) and covers outside the air inlet (201). The isolation cover divides the internal space of the inner cover assembly (2) into an air inlet cavity (203) and a smoke isolation cavity (204). The air inlet cavity (203) is respectively communicated with the air inlet (201) and the air outlet (202). The free end of the oil guiding part (111) passes through the air outlet (202) and extends to the rear of the air outlet (202).

10. The range hood according to claim 9, characterized in that: An oil discharge port is provided at the lower end of the rear side wall of the inner cover assembly (2), the oil discharge port comprising a first oil outlet (205) and / or a second oil outlet (206), the first oil outlet (205) being connected to the air inlet chamber (203), and the second oil outlet (206) being connected to the smoke isolation chamber (204).

11. The range hood according to claim 9, characterized in that: It also comprises a smoke hood (3) and a flap assembly (4), wherein a mounting opening (301) is provided on the front of the smoke hood (3), the flap assembly (4) is rotatably connected to the smoke hood (3) and is used to open or close the mounting opening (301), the inner cover assembly (2) can be movably inserted into the mounting opening (301) and is connected to the back of the flap assembly (4), and when the flap assembly (4) is rotated, it can drive the inner cover assembly (2) to extend out of the smoke hood (3) or retract into the smoke hood (3).

12. A range hood according to any one of claims 9 to 11, characterized in that: It also includes an oil receiving box assembly (5), which is arranged below the inner cover assembly (2) and is used to receive oil stains flowing down from the oil guide portion (111) and the inner cover assembly (2).

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