Lifting type range hood

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a lifting type range hood. The lifting type range hood comprises a machine body, a driving part and a sliding assembly, the machine body comprises a main machine, a middle sleeve layer is connected in the main machine in a lifting mode, a smoke collecting hood is connected in the middle sleeve layer in a lifting mode, and an air inlet is formed in the smoke collecting hood; the driving piece is installed in the main machine, the output end of the driving piece is connected with the exhaust fume collecting hood, and the driving piece can drive the exhaust fume collecting hood to drive the middle sleeve layer to completely stretch out of the main machine and drive the exhaust fume collecting hood to completely or partially stretch out of the middle sleeve layer; the sliding assembly comprises a first sliding rail pair and a second sliding rail pair, the exhaust fume collecting hood is in sliding connection with the middle sleeve layer through the first sliding rail pair, and the middle sleeve layer is in sliding connection with the main machine through the second sliding rail pair. The lifting type range hood adopts a form of combining three sleeve layers and a plurality of pairs of sliding rails, bears a larger load on the basis of ensuring the stroke, and ensures the moving stability.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a lifting range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly extracts waste from stove combustion and harmful cooking fumes, exhausting them outdoors to reduce air pollution. When installing a range hood, if the hood is higher from the stove, the usable space is increased, the cooking field is wider, and operation is easier, but the fume extraction effect is poor. If the hood is closer to the stove, the fume extraction effect is improved, but the space and field of view are limited, making operation inconvenient.

[0003] To address this issue, a lift-type range hood has been designed on the market, utilizing a double-layered structure to raise and lower the fume hood. Existing range hood lift systems often use slide rails as the travel mechanism, and the travel of the slide rails often depends on their length. Currently, for double-layered structures, the length of a single slide rail is insufficient to meet the required travel of the fume hood. Using two or more slide rails to increase the travel also results in unstable motion, especially when lifting heavier loads such as ductwork and air intake systems.

[0004] Therefore, there is an urgent need to provide a lifting type range hood to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting range hood, which can solve the problems of insufficient length of a single slide rail and unstable operation of two slide rails.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Lift-type range hood, including:

[0008] The machine body comprises a main unit, an intermediate layer is connected to the main unit in a lifting manner, a smoke collecting hood is connected to the intermediate layer in a lifting manner, and an air inlet is provided on the smoke collecting hood;

[0009] a driving member installed in the main unit, wherein the output end of the driving member is connected to the smoke collecting hood and is capable of driving the smoke collecting hood to cause the intermediate layer to fully extend out of the main unit, and driving the smoke collecting hood to fully or partially extend out of the intermediate layer;

[0010] The sliding assembly includes a first slide rail pair and a second slide rail pair. The smoke hood and the middle layer are slidably connected via the first slide rail pair, and the middle layer and the main unit are slidably connected via the second slide rail pair.

[0011] As an optional solution, the number of the first slide rail pairs is set to at least two, and the smoke hood and the intermediate layer are slidably connected via at least two pairs of the first slide rail pairs;

[0012] And / or, the number of the second slide rail pairs is set to at least two, and the intermediate layer and the main machine are slidably connected via at least two pairs of the second slide rail pairs.

[0013] As an optional solution, the first slide rail pair includes a first slide rail member and a second slide rail member matched with the first slide rail member, the first slide rail member is installed on the smoke hood, and the second slide rail member is installed on the intermediate layer;

[0014] And / or, the second slide rail pair includes a third slide rail member and a fourth slide rail member cooperating with the third slide rail member, the third slide rail member is installed on the intermediate sleeve layer, and the fourth slide rail member is installed on the host.

[0015] As an optional solution, the number of the sliding components is set to two groups, and the two groups of sliding components are symmetrically arranged on the left and right sides of the driving member.

[0016] As an optional solution, a smoke collecting chamber and installation chambers located on the left and right sides of the smoke collecting chamber and separated from the smoke collecting chamber are formed in the smoke collecting hood, and the first slide rail member and the second slide rail member are both located in the installation chambers.

[0017] As an optional solution, a first track bracket is fixed to the rear side of the intermediate sleeve layer, and the first track bracket is located in the installation cavity. The first track bracket includes a first connecting plate and a second connecting plate that are vertically connected. The first connecting plate extends in the front-to-back direction, and the second connecting plate extends in the left-to-right direction and is fixedly connected to the intermediate sleeve layer. The second sliding rail member is connected to both the first connecting plate and the second connecting plate.

[0018] As an optional solution, the rear side of the intermediate jacket layer is recessed forward to form a cavity, and the third slide rail member is installed in the cavity.

[0019] As an optional solution, the main body includes a rear panel located at the rear side, a second track bracket is fixed to the inner side of the rear panel, the second track bracket is located in the concave cavity, the second track bracket includes a third connecting plate, a fourth connecting plate, a fifth connecting plate and a sixth connecting plate connected in sequence, the third connecting plate and the fifth connecting plate both extend in the front-to-back direction, the fourth connecting plate extends in the left-right direction and is fixed to the rear panel, one end of the fourth connecting plate is connected to the third connecting plate, and the other end is connected to the fifth connecting plate, one end of the sixth connecting plate is perpendicularly connected to the end of the fifth connecting plate away from the fourth connecting plate, and the other end extends in the direction close to the third connecting plate, and the third connecting plate and the sixth connecting plate are both fixedly connected to the fourth sliding rail member.

[0020] As an optional solution, the air inlet is opened on the front side wall of the smoke hood. When the smoke hood is completely extended out of the middle shell, the air inlet is completely located outside the middle shell; when the smoke hood is partially extended out of the middle shell, the air inlet is partially located outside the middle shell.

[0021] As an optional solution, the driving member includes an electric push rod and a connecting piece. The electric push rod is fixedly installed in the main unit. One end of the connecting piece is connected to the output end of the electric push rod, and the other end is connected to the smoke hood.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a lifting range hood, which has three expansion modes, namely a fully closed mode, a partially expanded mode and a fully expanded mode. In the fully closed mode, the smoke hood is accommodated in the middle sleeve, and the middle sleeve is accommodated in the main unit; in the semi-expanded mode, under the driving action of the driving member, the middle sleeve is completely extended outside the main unit, and the smoke hood is partially extended outside the middle sleeve; in the fully expanded mode, the middle sleeve is completely extended outside the main unit, and the smoke hood is completely extended outside the middle sleeve, ensuring that the air inlet can be lowered to a position closer to the smoke source to meet the kitchen cooking conditions under different circumstances. In the fully expanded mode, the middle sleeve mainly assumes the function of extending the stroke so that the smoke hood meets the stroke requirements, and the second slide rail pair can meet the stroke requirements of the middle sleeve sliding relative to the main unit, and the first slide rail pair can meet the stroke requirements of the smoke hood sliding relative to the middle sleeve. In this way, the combination of multiple pairs of slide rails can bear a larger load and ensure the smooth operation of the middle sleeve and the smoke hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a first structural schematic diagram of the lift-type range hood provided by the utility model in a fully deployed mode;

[0025] Figure 2 This is a schematic structural diagram of the lift-type range hood provided by the present invention in a partially unfolded mode;

[0026] Figure 3 This is a second structural schematic diagram of the lift-type range hood provided by the utility model in the fully extended mode;

[0027] Figure 4 This is a schematic structural diagram of the lift-type range hood provided by the utility model with the rear panel hidden;

[0028] Figure 5 This is a top view of the lift-type range hood provided by the utility model;

[0029] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0030] In the picture:

[0031] 1. Main unit; 11. Bellows; 12. Main smoke inlet; 13. Rear panel; 14. Second track bracket; 141. Third connecting plate; 142. Fourth connecting plate; 143. Fifth connecting plate; 144. Sixth connecting plate;

[0032] 2. Intermediate sleeve; 21. Concave cavity; 22. First rail bracket; 221. First connecting plate; 222. Second connecting plate;

[0033] 3. Fume hood; 31. Air inlet; 32. Installation cavity;

[0034] 4. Driving member; 41. Electric push rod; 42. Connecting piece;

[0035] 5. Sliding assembly; 51. First slide rail pair; 511. First slide rail member; 512. Second slide rail member; 52. Second slide rail pair; 521. Third slide rail member; 522. Fourth slide rail member. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides a lift-type range hood, comprising a main unit 1, an intermediate jacket 2, and a fume hood 3. The rear side of the main unit 1 is fixed relative to a wall. A bellows 11 is provided on the top of the main unit 1, and a fan system (not shown) is housed within the bellows 11 for providing negative pressure for extracting and exhausting fume. The bottom of the main unit 1 is connected to the intermediate jacket 2 in a liftable manner, and the fume hood 3 is connected to the intermediate jacket 2 in a liftable manner. The inner cavities of the main unit 1, the intermediate jacket 2, and the fume hood 3 are interconnected. The fume hood 3 is provided with an air inlet 31 for side suction, and the bottom of the main unit 1 is provided with a main fume inlet 12 for top suction.

[0041] like Figure 3 and Figure 4As shown, the lifting range hood also includes a driving member 4 and a sliding assembly 5. The driving member 4 is installed in the main unit 1. The output end of the driving member 4 passes through the intermediate sleeve 2 and is connected to the smoke hood 3. The driving member 4 can drive the smoke hood 3 to drive the intermediate sleeve 2 to extend completely out of the main unit 1, and drive the smoke hood 3 to extend completely or partially out of the intermediate sleeve 2; the sliding assembly 5 includes a first slide rail pair 51 and a second slide rail pair 52. The smoke hood 3 and the intermediate sleeve 2 are slidably connected by the first slide rail pair 51, and the intermediate sleeve 2 and the main unit 1 are slidably connected by the second slide rail pair 52.

[0042] The lift-type range hood provided in this embodiment has three deployment modes, namely, fully closed mode, partially deployed mode and fully deployed mode. In the fully closed mode, the smoke hood 3 is accommodated in the middle layer 2, and the middle layer 2 is accommodated in the main unit 1, which does not take up space and has a beautiful appearance. Figure 2 As shown, in the semi-expanded mode, under the driving action of the driving member 4, the middle layer 2 is completely extended out of the host 1, and the smoke hood 3 is partially extended out of the middle layer 2; Figure 1 As shown, in the fully expanded mode, the middle layer 2 is completely extended out of the main unit 1, and the smoke hood 3 is completely extended out of the middle layer 2, ensuring that the air inlet 31 can be lowered to a position closer to the smoke source, improving the oil smoke extraction effect, and meeting the kitchen cooking conditions under different circumstances. The user can make a selection through the operation button on the control panel. Therefore, the present application adopts a three-layer lifting structure, which not only meets the requirements of increasing the smoking area, but also does not take up space when not in use. In the fully expanded mode, the middle layer 2 mainly assumes the function of extending the stroke, so that the smoke hood 3 meets the stroke requirements, and the second slide rail pair 52 can meet the stroke requirements of the middle layer 2 sliding relative to the main unit 1, and the first slide rail pair 51 can meet the stroke requirements of the smoke hood 3 sliding relative to the middle layer 2. In this way, the combination of multiple pairs of slide rails can bear a larger load, ensure the smooth operation of the middle layer 2 and the smoke hood 3, and solve the problem of insufficient length of a single slide rail and the problem of unstable operation of the double slide rail docking.

[0043] It should be noted that, in order to better carry out the wall installation and ensure the stability of the overall fixing of the range hood, the middle layer 2 and the smoke collecting hood 3 are arranged close to the rear side wall of the main unit 1.

[0044] More specifically, the bottom rear side of the main unit 1 has an opening for the intermediate layer 2 to enter and exit in the upper and lower directions, and the shape and size of the opening are basically consistent with the shape and size of the cross section of the intermediate layer 2. The bottom of the intermediate layer 2 has an opening for the smoke hood 3 to enter and exit in the upper and lower directions, and the shape and size of the opening are basically consistent with the shape and size of the cross section of the smoke hood 3.

[0045] In this embodiment, if Figure 1As shown, the air inlet 31 is opened on the front side wall of the smoke collecting hood 3. Specifically, the air inlet 31 is set as two air inlets spaced apart in the left and right directions. The air inlet 31 is an elongated hole extending in the left and right directions. Figure 1 As shown, when the smoke hood 3 is fully extended from the middle layer 2, that is, in the fully expanded mode, the air inlet 31 is all located outside the middle layer 2 and is in a fully open state, thereby increasing the smoking efficiency and reducing the escape of oil smoke; Figure 2 As shown, when the smoke hood 3 partially extends out of the intermediate layer 2, that is, in the partially deployed mode, the air inlet 31 is partially located outside the intermediate layer 2, in a partially open and partially blocked state. In the fully closed mode, since the smoke hood 3 is housed within the intermediate layer 2, the air inlet 31 is blocked by the intermediate layer 2 and is in a closed state. Therefore, the user can adjust the opening and closing state of the air inlet 31 by selecting different deployment modes, facilitating changes in the negative pressure inside the range hood, improving the extraction effect, and increasing the utilization rate of the impeller motor.

[0046] In this embodiment, if Figure 4 As shown, the driving member 4 includes an electric push rod 41 and a connecting piece 42. The electric push rod 41 is fixedly installed in the main unit 1. One end of the connecting piece 42 is connected to the output end of the electric push rod 41, and the other end is connected to the smoke hood 3. By using the electric push rod 41 as the driving part, it can meet the needs of lifting more complex and heavier loads, making the lifting operation more stable. The output end of the electric push rod 41 is connected to the connecting piece 42 to extend the stroke, so that the electric push rod 41 can drive the smoke hood 3 to move up and down.

[0047] When the user selects the partial deployment mode, the output end of the electric push rod 41 extends, driving the smoke hood 3 to move downward, and the smoke hood 3 holds the middle layer 2. The middle layer 2 moves downward together with the smoke hood 3 under the action of gravity. The middle layer 2 moves downward relative to the main unit 1 under the guidance of the second slide rail pair 52 until it reaches the maximum stroke of the second slide rail pair 52. The middle layer 2 is completely extended outside the main unit 1, and the output end of the electric push rod 41 continues to move downward. The smoke hood 3 moves downward relative to the middle layer 2 under the guidance of the first slide rail pair 51 until it reaches the position shown in FIG. Figure 2 The smoke hood 3 is shown as partially extending out of the middle layer 2 and the air inlet 21 is partially exposed. When the user selects the fully extended mode, based on the partial extended mode, the output end of the electric push rod 41 continues to move downward, and the smoke hood 3 continues to move downward relative to the middle layer 2 under the guidance of the first slide rail pair 51 until it reaches the maximum stroke of the first slide rail pair 51. Figure 1As shown, the smoke hood 3 extends completely outside the intermediate jacket 2, exposing the air inlet 31. The air inlet 31 can be lowered closer to the smoke source, improving fume extraction. When the user selects the fully closed mode, the electric push rod 41 retracts, first driving the smoke hood 3 to retract into the intermediate jacket 2. The smoke hood 3 then drives the intermediate jacket 2 to retract into the main unit 1, eliminating space and improving overall aesthetics. Users can select the appropriate mode to meet a wide range of kitchen cooking conditions.

[0048] It should be noted that the stroke control of the electric push rod 41 can be achieved through its built-in position feedback sensor, such as a Hall sensor, a limit switch, etc. Its specific structure and working principle belong to the existing technology and will not be repeated here.

[0049] In this embodiment, combined with Figures 4 to 6 The sliding assembly 5 includes two pairs of first slide rails 51 and two pairs of second slide rails 52, which are adjacently arranged. The two pairs of first slide rails 51 provide a sliding connection between the fume hood 3 and the intermediate housing 2, while the two pairs of second slide rails 52 provide a sliding connection between the intermediate housing 2 and the main unit 1. This combination of multiple pairs of slide rails can support a greater load, further ensuring smooth operation of the intermediate housing and the fume hood.

[0050] Specifically, each pair of first slide rails 51 includes a first slide rail member 511 and a second slide rail member 512 that cooperates with the first slide rail member 511. The first slide rail member 511 is mounted on the smoke hood 3, and the second slide rail member 512 is mounted on the intermediate layer 2. When the smoke hood 3 moves up and down relative to the intermediate layer 2, the smoke hood 3 drives the two first slide rail members 511 to slide relative to the corresponding second slide rail members 512, thereby effectively limiting the shaking of the entire smoke hood 3 and improving the smoothness of the smoke hood 3 during the lifting process.

[0051] Furthermore, if Figure 6 As shown, each pair of second slide rail pairs 52 includes a third slide rail member 521 and a fourth slide rail member 522 that cooperates with the third slide rail member 521. The third slide rail member 521 is mounted on the intermediate housing 2, and the fourth slide rail member 522 is mounted on the mainframe 1. When the intermediate housing 2 moves up and down relative to the mainframe 1, the intermediate housing 2 drives the two third slide rail members 521 to slide relative to the corresponding fourth slide rail members 522. This effectively limits the shaking of the entire intermediate housing 2 and improves the smoothness of the intermediate housing 2 during the lifting process.

[0052] It should be noted that the positions corresponding to the first slide member 511 and the second slide member 512 are provided with mutually cooperating limiting structures, such as limiting pins, limiting blocks, etc., so that when the smoke hood 3 moves downward to the extreme position relative to the intermediate layer 2, the limiting member on the first slide member 511 is exactly in contact with the limiting member on the second slide member 512, preventing the first slide member 511 from sliding out of the second slide member 512. Similarly, the positions corresponding to the third slide member 521 and the fourth slide member 522 are also provided with mutually cooperating limiting structures, such as limiting pins, limiting blocks, etc., so that when the intermediate layer 2 moves downward to the extreme position relative to the main unit 1, the limiting member on the third slide member 521 is exactly in contact with the limiting member on the fourth slide member 522, preventing the third slide member 511 from sliding out of the fourth slide member 522.

[0053] In other embodiments, the sliding assembly 5 may also include three, four or more pairs of first slide rail pairs 51, and may also include three, four or more pairs of second slide rail pairs 52. It can be adaptively set according to actual needs and is not specifically limited here.

[0054] like Figure 4 As shown, the number of sliding assemblies 5 is set to two, and the two sets of sliding assemblies 5 are symmetrically arranged on the left and right sides of the driving member 4. One set of identical sliding assemblies 5 on each side ensures that the smoke hood 3 and the intermediate layer 2 can maintain central balance when moving, making the operation safer and smoother.

[0055] like Figure 4 and Figure 6 As shown, a smoke collecting chamber and installation chambers 32 are formed in the smoke collecting hood 3, which are located on the left and right sides of the smoke collecting chamber and are separated from the smoke collecting chamber. The first slide rail 511 and the second slide rail 512 on the left side are both located in the installation chamber 32 on the left side, and the first slide rail 511 and the second slide rail 512 on the right side are both located in the installation chamber 32 on the right side. The installation chambers 32 provide installation space for the first slide rail 511 and the second slide rail 512, saving space.

[0056] Furthermore, if Figure 4 and Figure 6 As shown, the rear side of the intermediate jacket 2 is recessed forward to form a cavity 21. The third rail member 521 is installed in the cavity 21, and the fourth rail member 522 is also located in the cavity 21. The provision of the cavity 21 provides installation space for the third rail member 521 and the fourth rail member 522. The cavity 21 extends into the interior of the installation cavity 32, allowing the first rail pair 51 and the second rail pair 52 to be arranged adjacent to each other, making the overall structure more compact and saving space.

[0057] like Figure 6As shown, a first rail bracket 22 is fixed to the inner side of the intermediate jacket 2. The first rail bracket 22 is located within the mounting cavity 32. The first rail bracket 22 has an L-shaped structure and includes a first connecting plate 221 and a second connecting plate 222 connected perpendicularly. The first connecting plate 221 extends in the front-to-back direction, and the second connecting plate 222 extends in the left-to-right direction and is fixedly connected to the intermediate jacket 2. Second slide rail members 512 are connected to both the first connecting plate 221 and the second connecting plate 222, so that the two second slide rail members 512 are arranged adjacent to each other. By providing the above-mentioned first rail bracket 22, the first rail bracket 22 has a high structural strength and stability, ensuring a secure connection and sliding stability.

[0058] Furthermore, if Figure 3 、 Figure 4 and Figure 6 As shown, the host 1 includes a rear panel 13 at the rear side, and a second track bracket 14 is fixed to the inner side of the rear panel 13. The second track bracket 14 is located in the concave cavity 21. The second track bracket 14 is Figure 6 The irregular shape shown in the figure includes a third connecting plate 141, a fourth connecting plate 142, a fifth connecting plate 143, and a sixth connecting plate 144 connected in sequence. The third connecting plate 141 and the fifth connecting plate 143 both extend in the front-to-back direction. The fourth connecting plate 142 extends in the left-to-right direction and is fixed to the rear panel 13. One end of the fourth connecting plate 142 is connected to the third connecting plate 141, and the other end is connected to the fifth connecting plate 143. One end of the sixth connecting plate 144 is perpendicularly connected to the end of the fifth connecting plate 143 away from the fourth connecting plate 142, and the other end extends toward the third connecting plate 141. The fourth sliding rail member 522 is fixedly connected to the third connecting plate 141 and the sixth connecting plate 144. By providing the above-mentioned second track bracket 14, the second track bracket 14 has high structural strength and stability, ensuring connection stability and sliding stability.

[0059] The lifting process of the lift-type range hood provided in this embodiment is as follows:

[0060] like Figure 2 As shown, when the user selects the partial deployment mode, the output end of the electric push rod 41 extends to drive the smoke hood 3 to move downward, and the middle layer 2 moves downward together with the smoke hood 3 under the action of gravity, and the middle layer 2 drives the two third slide rails 521 to slide relative to the corresponding fourth slide rails 522. When the third slide rails 521 slide to the extreme position relative to the fourth slide rails 522, the middle layer 2 is completely extended to the outside of the main unit 1, and the output end of the electric push rod 41 continues to move downward, and the smoke hood 3 drives the two first slide rails 511 to slide relative to the corresponding second slide rails 512, so that the smoke hood 3 moves downward relative to the middle layer 2 until it reaches the position shown in FIG. Figure 2The smoke collecting hood 3 is shown in a state where part of it extends out of the middle jacket 2 . At this moment, the air inlet 21 is partially exposed, and the air inlet 31 is at a certain distance from the smoke source.

[0061] like Figure 1 As shown, when the user selects the fully expanded mode, on the basis of the partially expanded mode, the output end of the electric push rod 41 continues to move downward, and the smoke hood 3 drives the two first slide rails 511 to continue to slide relative to the corresponding second slide rails 512. When the first slide rails 511 slide to the extreme position relative to the second slide rails 512, the smoke hood 3 is completely extended from the outside of the middle sleeve 2. At this time, the air inlet 31 is completely exposed, and the air inlet 31 can be lowered to a position closer to the smoke source, thereby improving the oil fume extraction effect.

[0062] When the user selects the fully closed mode, the electric push rod 41 retracts, first driving the smoke hood 3 to be stored in the middle layer 2, and then the smoke hood 3 drives the middle layer 2 to be stored in the main unit 1, which does not take up space and improves the overall aesthetics. The user can select the corresponding mode according to their needs to meet the kitchen cooking conditions in more situations.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Lift-type range hood, characterized in that: include: The machine body comprises a main unit (1), an intermediate layer (2) is connected to the main unit (1) in a lifting manner, a smoke collecting hood (3) is connected to the intermediate layer (2) in a lifting manner, and an air inlet (31) is provided on the smoke collecting hood (3); A driving member (4) is installed in the main unit (1), wherein the output end of the driving member (4) is connected to the smoke collecting hood (3), and can drive the smoke collecting hood (3) to drive the intermediate layer (2) to extend completely out of the main unit (1), and drive the smoke collecting hood (3) to extend completely or partially out of the intermediate layer (2); The sliding assembly (5) comprises a first slide rail pair (51) and a second slide rail pair (52); the smoke hood (3) and the intermediate layer (2) are slidably connected via the first slide rail pair (51); and the intermediate layer (2) and the main unit (1) are slidably connected via the second slide rail pair (52).

2. The lift-type range hood according to claim 1, characterized in that: The number of the first slide rail pairs (51) is set to at least two, and the smoke collecting hood (3) and the intermediate jacket (2) are slidably connected via at least two pairs of the first slide rail pairs (51); And / or, the number of the second slide rail pairs (52) is set to at least two, and the intermediate layer (2) and the main machine (1) are slidably connected via at least two pairs of the second slide rail pairs (52).

3. The lift-type range hood according to claim 2, characterized in that: The first slide rail pair (51) comprises a first slide rail member (511) and a second slide rail member (512) matched with the first slide rail member (511), the first slide rail member (511) being mounted on the smoke collecting hood (3), and the second slide rail member (512) being mounted on the intermediate jacket (2); And / or, the second slide rail pair (52) includes a third slide rail member (521) and a fourth slide rail member (522) cooperating with the third slide rail member (521), the third slide rail member (521) is installed on the intermediate sleeve (2), and the fourth slide rail member (522) is installed on the host (1).

4. The lift-type range hood according to claim 3, characterized in that: The number of the sliding components (5) is set to two groups, and the two groups of sliding components (5) are symmetrically arranged on the left and right sides of the driving member (4).

5. The lift-type range hood according to claim 3, characterized in that: A smoke collecting chamber and installation chambers (32) located on the left and right sides of the smoke collecting chamber and separated from the smoke collecting chamber are formed in the smoke collecting hood (3); the first slide rail member (511) and the second slide rail member (512) are both located in the installation chamber (32).

6. The lifting type range hood according to claim 5, characterized in that: A first track bracket (22) is fixed to the rear side of the intermediate jacket (2), the first track bracket (22) being located in the mounting cavity (32), the first track bracket (22) comprising a first connecting plate (221) and a second connecting plate (222) connected vertically, the first connecting plate (221) extending in a front-to-rear direction, the second connecting plate (222) extending in a left-to-right direction and fixedly connected to the intermediate jacket (2), the first connecting plate (221) and the second connecting plate (222) both being connected to the second slide rail member (512).

7. The lift-type range hood according to claim 3, characterized in that: The rear side of the intermediate jacket layer (2) is recessed forward to form a cavity (21), and the third slide rail member (521) is installed in the cavity (21).

8. The lift-type range hood according to claim 7, characterized in that: The main machine (1) includes a rear panel (13) located at the rear side, a second track bracket (14) is fixed on the inner side of the rear panel (13), the second track bracket (14) is located in the concave cavity (21), and the second track bracket (14) includes a third connecting plate (141), a fourth connecting plate (142), a fifth connecting plate (143) and a sixth connecting plate (144) connected in sequence, the third connecting plate (141) and the fifth connecting plate (143) both extend in the front-to-back direction, the fourth connecting plate (142) extends in the left-right direction, and the sixth connecting plate (144) extends in the left-right direction. The fourth connecting plate (142) is connected to the third connecting plate (141) at one end and to the fifth connecting plate (143) at the other end. The sixth connecting plate (144) is connected to the fifth connecting plate (143) at one end and to the fourth connecting plate (142) at the other end. The fourth sliding rail member (522) is fixedly connected to the third connecting plate (141) and the sixth connecting plate (144).

9. The lift-type range hood according to any one of claims 1 to 7, characterized in that: The air inlet (31) is opened on the front side wall of the smoke hood (3); when the smoke hood (3) is completely extended out of the intermediate layer (2), the air inlet (31) is completely located outside the intermediate layer (2); when the smoke hood (3) is partially extended out of the intermediate layer (2), the air inlet (31) is partially located outside the intermediate layer (2).

10. The lift-type range hood according to any one of claims 1 to 7, characterized in that: The driving member (4) comprises an electric push rod (41) and a connecting piece (42); the electric push rod (41) is fixedly installed in the host (1); one end of the connecting piece (42) is connected to the output end of the electric push rod (41), and the other end is connected to the smoke hood (3).

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