Lifting type range hood

Abstract

A lifting type range hood comprises an upper box body and a lower box body, an oil smoke suction fan is installed in the upper box body, an air inlet channel is arranged in the lower box body, the air inlet channel is communicated with an air inlet of the oil smoke suction fan through an air guide channel, and the lower box body can be driven by a driving mechanism to do lifting motion relative to the upper box body. The driving mechanism is arranged between the upper box body and the lower box body, and the driving mechanism and the air guide channel are isolated through a lifting sealing mechanism. Compared with the prior art, the lifting type range hood has the advantages that in the lifting process of the lower box body relative to the upper box body, the driving mechanism and the air guide channel are always isolated through the lifting sealing mechanism, so that the driving mechanism can be prevented from being interfered by lampblack airflow, the working reliability is improved, and the service life is prolonged; the lifting sealing mechanism does not occupy the space of the driving mechanism, lifting sealing between the upper box body and the lower box body is guaranteed to be achieved in a small space, meanwhile, the guide pipe is used for guiding, the spring is used for guaranteeing the relative position of the partition plate, and the structure is more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a range hood, especially a lifting type range hood. BACKGROUND

[0002] The range hood has become one of the indispensable equipment in modern family kitchen, with the application rate of the range hood higher and higher, people pay more and more attention to the oil fume suction effect and the installation aesthetics of the range hood. The traditional top suction type range hood is large in size, and the cook is easy to bump the head, if the distance between the air inlet of the range hood and the oil fume generating area is large, the oil fume suction path is long, and the suction time is increased, so that the oil fume escape phenomenon is easy to occur in the cooking process, if the installation height of the range hood is reduced, the smoke inlet is as close to the smoke source as possible, and the negative pressure is expanded, although it is beneficial to improve the oil fume suction effect, but the cooking space is too small, the head of the cook is easy to accidentally bump the smoke collecting cover, and after the installation height is reduced, the vision and the overall appearance of the kitchen are also affected. For this reason, people have invented a lifting type range hood, that is, the smoke inlet can be lifted, when starting, the smoke inlet is lowered, and when shutting down, the smoke inlet is raised. The lifting sealing structure of the lifting type range hood on the market at present is mostly wrapped by the outer box body and the inner fan frame, and a rubber pad is added in the middle to realize the lifting sealing. After the outer box body is nested in the inner fan frame, the size of the whole upper box body is relatively large under the premise of ensuring the performance, and the matching degree of the existing size of the user's cabinet is not high, and a new cabinet basically needs to be designed according to the size of the upper box body of the range hood, therefore, if the size of the upper box body is not increased, the problem of sealing between the upper and lower box bodies in the limited space needs to be solved. In addition, the lower box body of the existing lifting type range hood is driven to move up and down by the driving mechanism, the installation position of the driving mechanism needs to be reasonably set, and the problem of oil fume pollution of the driving mechanism needs to be solved. SUMMARY

[0003] The first technical problem to be solved by the utility model is to provide a lifting type range hood capable of avoiding oil fume pollution of the driving mechanism in view of the above-mentioned prior art status.

[0004] The second technical problem to be solved by the utility model is to provide a lifting type range hood capable of realizing the lifting sealing of the upper and lower box bodies in a smaller space in view of the above-mentioned prior art status.

[0005] The utility model discloses a lifting type range hood which solves the first technical problem, comprising an upper box body and a lower box body, wherein the upper box body is internally provided with a range hood fan, the lower box body is internally provided with an air inlet channel, the air inlet channel is connected with an air inlet of the range hood fan through an air guide channel, and the lower box body can move up and down relative to the upper box body under the drive of a drive mechanism.

[0006] The utility model discloses a lifting type range hood which solves the second technical problem, wherein the lifting sealing mechanism comprises a first connecting plate, a second connecting plate, a first guide pipe, a second guide pipe, a first spring, a second spring and a partition plate, the first connecting plate is connected to the upper box body, the second connecting plate is connected to the lower box body, the first guide pipe is vertically arranged and fixed on the first connecting plate, the second guide pipe is vertically arranged and fixed on the second connecting plate, the partition plate is arranged between the first guide pipe and the second guide pipe, the top of the partition plate is sleeved on the first guide pipe, the bottom of the partition plate is sleeved on the second guide pipe, the first spring is sleeved on the first guide pipe, the top end of the first spring is abutted against the partition plate, the bottom end of the first spring is abutted against the bottom of the first connecting plate, the second spring is sleeved on the second guide pipe, the top end of the second spring is abutted against the top of the second connecting plate, and the bottom end of the second spring is abutted against the partition plate. In this way, the lifting sealing mechanism does not occupy the mounting space of the front drive mechanism, can ensure sealing during lifting in a small space, is guided by the guide pipes, and the relative position of the partition plate is ensured by the springs, so that the structure is more reliable.

[0007] Further preferably, the first connecting plate, the second connecting plate and the partition plate are vertically arranged, the first connecting plate is arranged at the rear side of the second connecting plate, and the first guide pipe is arranged at the rear side of the second guide pipe.

[0008] The first connecting plate and the second connecting plate can have various mounting structures, and preferably, the upper box body is internally provided with a fan frame, the range hood fan is mounted in the fan frame, the fan frame is internally provided with a fan frame bottom plate, the first connecting plate is fixed on the fan frame bottom plate, and the second connecting plate is fixed on the top of the lower box body.

[0009] Further preferably, the lower box body is internally integrated with a cooking module, the cooking module is provided with a cooking cavity, the rear wall of the cooking cavity and the back plate of the lower box body form the air inlet channel, the range hood fan is provided with a rear air inlet, and the air inlet channel is connected with the rear air inlet through the air guide channel. In this way, the oil fume sucked into the air inlet channel can enter the rear air inlet of the range hood fan through the air guide channel.

[0010] The driving mechanism can be arranged in a plurality of different positions, and preferably, the driving mechanism is arranged at the front side of the air guide channel.

[0011] Further preferably, the range hood is a centrifugal fan, and the range hood further comprises a front side air inlet, the rear side air inlet is a main air inlet, and the front side air inlet is an auxiliary air inlet. In this way, most of the oil fume flow from the air inlet channel flows to the main air inlet, and a small part of the oil fume flow flows to the auxiliary air inlet.

[0012] In order to smoothly guide the oil liquid falling on the second connecting plate to the air inlet channel, the bottom of the second connecting plate is inclined downward from front to back, and the rear edge of the second connecting plate is connected to the front side of the air inlet channel.

[0013] In order to avoid the risk of oil pollution being accumulated for a long time between the partition plate and the first connecting plate and the second connecting plate and being adhered, a gap is left between the bottom of the partition plate and the bottom of the second connecting plate, and a gap is left between the bottom of the first connecting plate and the bottom of the second connecting plate.

[0014] In order to make the lifting sealing mechanism more reliable, the lifting sealing mechanism has two sets and is arranged on the left and right sides behind the driving mechanism.

[0015] Compared with the prior art, the advantages of the lifting range hood of the utility model lie in that: the air inlet channel of the lower box body of the lifting range hood is connected with the air inlet of the range hood through the air guide channel, the driving mechanism and the air guide channel are always separated by the lifting sealing mechanism during the lifting process of the lower box body relative to the upper box body, the driving mechanism can be avoided from being disturbed by the oil fume flow, the working reliability and the service life are improved, the lifting sealing mechanism does not occupy the space of the driving mechanism, and the lifting and sealing between the upper box body and the lower box body in a smaller space are realized, the structure is more reliable, the air guide pipe is guided, and the relative position of the partition plate is ensured by the spring. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of the range hood of the utility model embodiment (the lower box body is raised);

[0017] Figure 2 FIG. 2 is a structural schematic view of the range hood of the utility model embodiment (the lower box body is lowered); Figure 1 FIG. 3 is a structure and schematic view of the range hood shown in FIG. 1 without a decorative cover;

[0018] Figure 3 FIG. 4 is a structure and schematic view of the range hood shown in FIG. 2 without a decorative cover; Figure 1 FIG. 5 is a structure sectional view of the range hood shown in FIG. 1;

[0019] Figure 4 FIG. 6 is an enlarged schematic view of part A in FIG. 5; Figure 3 FIG. 7 is an enlarged schematic view of part B in FIG. 5;

[0020] Figure 5A structure schematic view of the range hood (lower box body descending state) of the embodiment of the utility model is shown in the figure;

[0021] Figure 6 As Figure 5 The structure and schematic view of the range hood after removing the decorative cover are shown in the figure;

[0022] Figure 7 As Figure 5 The structure sectional view of the range hood is shown in the figure;

[0023] Figure 8 As Figure 7 The enlarged schematic view of the middle B part. DETAILED DESCRIPTION

[0024] The utility model will be further described in detail in combination with the embodiment of the accompanying drawings.

[0025] As Figures 1 to 8 The embodiment of the utility model discloses a lifting type range hood, which comprises an upper box body 1 and a lower box body 2, the upper box body 1 is internally provided with a fan frame 8, the fan frame 8 is internally provided with a range hood fan 3, and the bottom of the fan frame 8 is provided with a fan frame bottom plate 81. The lower box body 2 is internally provided with an air inlet channel 4, the air inlet channel 4 is communicated with the air inlet of the range hood fan 3 through a wind guide channel 5. A driving mechanism 6 is arranged between the upper box body 1 and the lower box body 2, and the lower box body 2 can be lifted and lowered relative to the upper box body 1 under the driving of the driving mechanism 6. The driving mechanism 6 is arranged on the front side of the wind guide channel 5, and the driving mechanism 6 and the wind guide channel 5 are isolated through a lifting sealing mechanism 7. The lifting sealing mechanism 7 of the embodiment comprises two sets and is arranged on the left side and the right side behind the driving mechanism 6.

[0026] The lifting sealing mechanism 7 of the embodiment comprises a first connecting plate 71, a second connecting plate 72, a first guide pipe 73, a second guide pipe 74, a first spring 75, a second spring 76 and a partition plate 77, all of which are vertically arranged. The first connecting plate 71 is fixedly connected to the fan frame bottom plate 81, the second connecting plate 72 is fixedly connected to the top of the lower box body 2, the first guide pipe 73 is vertically arranged and fixed to the first connecting plate 71, the second guide pipe 74 is vertically arranged and fixed to the second connecting plate 72, the first connecting plate 71 is located at the rear side of the second connecting plate 72, and the first guide pipe 73 is located at the rear side of the second guide pipe 74. The partition plate 77 is arranged between the first guide pipe 73 and the second guide pipe 74, the top of the partition plate 77 is sleeved on the first guide pipe 73, the bottom of the partition plate 77 is sleeved on the second guide pipe 74, the first spring 75 is sleeved on the first guide pipe 73, the top end of the first spring 75 abuts against the partition plate 77, the bottom end of the first spring 75 abuts against the bottom of the first connecting plate 71, the second spring 76 is sleeved on the second guide pipe 74, the top end of the second spring 76 abuts against the top of the second connecting plate 72, and the bottom end of the second spring 76 abuts against the partition plate 77.

[0027] As shown in Figure 3 and Figure 4 , the lower box body 2 is in the raised state. The first connecting plate 71 and the second connecting plate 72 are at the same height, the first guide pipe 73 and the second guide pipe 74 are also at the same height, and the first spring 75 and the second spring 76 are also at the same height. There is a gap between the bottom of the partition plate 77 and the bottom of the second connecting plate 72, and there is a gap between the bottom of the first connecting plate 71 and the bottom of the second connecting plate 72. When the oil stains on the first connecting plate 71 and the partition plate 77 flow downward along the second connecting plate 72, there is no risk of the oil stains adhering to each other due to long-term accumulation between the partition plate 77, the first connecting plate 71 and the second connecting plate 72.

[0028] As shown in Figure 7 and Figure 8 , the lower box body 2 is in the lowered state. The second connecting plate 72 moves downward with the lower box body 2 to the lowest position, the position of the first connecting plate 71 remains unchanged, the second connecting plate 72 is staggered with the first connecting plate 72 in the height direction, and the first guide pipe 73 and the second guide pipe 74 are also staggered in the height direction. During the lowering of the lower box body 2, the first connecting plate 71 drives the partition plate 77 to move downward, and at the same time, the first spring 75 and the second spring 76 are gradually compressed until the lower box body 2 is lowered to the lowest position, and the compression amount of the first spring 75 and the second spring 76 is the largest.

[0029] In the embodiment, the cooking module 9 is integrated inside the lower cabinet 2, and the cooking module 9 has a cooking cavity, and a rear wall 91 of the cooking cavity and the back plate 21 of the lower cabinet form the air inlet channel 4. The oil fume extractor fan 3 in the embodiment is a centrifugal fan, and the oil fume extractor fan 3 further comprises a front air inlet 32, and the rear air inlet 31 is a main air inlet, and the front air inlet 32 is an auxiliary air inlet. The air inlet channel 4 is connected with the rear air inlet 31 and the front air inlet 32 through the air guide channel 5, and after the oil fume gas flow in the air inlet channel 4 passes through the air guide channel 5, most of the gas flow flows to the rear air inlet, and a small part of the gas flow is guided to the front air inlet.

[0030] In the embodiment, the bottom of the second connecting plate 72 is provided with an inclined portion 721 which is inclined downward from front to back, and the rear edge of the inclined portion 721 is connected with the front side of the air inlet channel 4, and the oil stains falling on the bottom of the second connecting plate 72 are guided to the air inlet channel 4 through the inclined portion 721, and finally flow into the oil cup 11.

[0031] In addition, the lifting type oil fume extractor can realize the lifting of different heights by setting different numbers of partitions, guide pipes and springs.

[0032] In the description and claims of the present application, terms used for indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used only for the purpose of convenient description, and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only used for description and should not be regarded as limitation, for example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A lifting range hood, comprising an upper housing (1) and a lower housing (2), wherein a range hood fan (3) is installed inside the upper housing (1), and the lower housing (2) has an air inlet channel (4) inside, the air inlet channel (4) being connected to the air inlet of the range hood fan (3) through an air guide channel (5), and the lower housing (2) being able to move up and down relative to the upper housing (1) under the drive of a drive mechanism (6), characterized in that: The driving mechanism (6) is arranged between the upper cabinet (1) and the lower cabinet (2), and is isolated from the air guide channel (5) through a lifting sealing mechanism (7), the lifting sealing mechanism (7) comprises a first connecting plate (71), a second connecting plate (72), a first guide pipe (73), a second guide pipe (74), a first spring (75), a second spring (76) and a partition plate (77), the first connecting plate (71) is connected to the upper cabinet (1), the second connecting plate (72) is connected to the lower cabinet (2), the first guide pipe (73) is vertically arranged and fixed on the first connecting plate (71), the second guide pipe (74) is vertically arranged and fixed on the second connecting plate (72), the partition plate (77) is arranged between the first guide pipe (73) and the second guide pipe (74), the top of the partition plate (77) is sleeved on the first guide pipe (73), the bottom of the partition plate (77) is sleeved on the second guide pipe (74), the first spring (75) is sleeved on the first guide pipe (73), the top end of the first spring (75) abuts against the partition plate (77), the bottom end of the first spring (75) abuts against the bottom of the first connecting plate (71), the second spring (76) is sleeved on the second guide pipe (74), the top end of the second spring (76) abuts against the top of the second connecting plate (72), and the bottom end of the second spring (76) abuts against the partition plate (77).

2. The lifting type range hood according to claim 1, characterized in that: The first connecting plate (71), the second connecting plate (72) and the partition plate (77) are all vertically arranged, the first connecting plate (71) is arranged at the rear side of the second connecting plate (72), and the first guide pipe (73) is arranged at the rear side of the second guide pipe (74).

3. The lifting type range hood according to claim 1, characterized in that: The upper cabinet (1) is internally provided with a fan frame (8), the oil fume fan (3) is arranged in the fan frame (8), the fan frame (8) is internally provided with a fan frame bottom plate (81), the first connecting plate (71) is fixed on the fan frame bottom plate (81), and the second connecting plate (72) is fixed on the top of the lower cabinet (2).

4. The lifting type range hood according to claim 3, characterized in that: The lower cabinet (2) is internally integrated with a cooking module (9), the cooking module (9) has a cooking cavity, the rear wall (91) of the cooking cavity and the lower cabinet back plate (21) form the air inlet channel (4), the oil fume fan (3) has a rear side air inlet (31), and the air inlet channel (4) is communicated with the rear side air inlet (31) through the air guide channel (5).

5. The lifting hood according to claim 4, characterized in that: The driving mechanism (6) is arranged at the front side of the air guide channel (5).

6. The lifting hood according to claim 4, characterized in that: The oil fume fan (3) is a centrifugal fan, the oil fume fan (3) further comprises a front side air inlet (32), the rear side air inlet (31) is a main air inlet, and the front side air inlet (32) is an auxiliary air inlet.

7. The lifting hood according to claim 3, characterized in that: The bottom of the second connecting plate (72) is obliquely inclined from front to back, and the rear edge of the second connecting plate (72) is connected to the front side of the air inlet channel (4).

8. The lifting hood according to claim 7, characterized in that: The bottom of the partition plate (77) and the bottom of the second connecting plate (72) leave a gap, and the bottom of the first connecting plate (71) and the bottom of the second connecting plate (72) leave a gap (10).

9. The lifting hood according to any one of claims 1 to 8, characterized in that: The lifting sealing mechanism (7) has two sets, and is respectively arranged on the left and right sides behind the driving mechanism (6).

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