Range hood

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to a range hood which comprises a fixed cover, a movable cover, a turning plate, a linkage rod and a combined driving mechanism, the movable cover and the fixed cover are connected in a sliding mode in the front-back direction, and a smoke inlet is formed in the movable cover; the turning plate is arranged on the front sides of the fixed cover and the movable cover, one end of the linkage rod is hinged to the movable cover, the other end of the linkage rod is hinged to the turning plate, and the combined driving mechanism is used for driving the turning plate to rotate. When the combined driving mechanism drives the turning plate to be opened, the turning plate pulls the movable cover to move and stretch out of the fixed cover through the linkage rod, the smoke inlet moves forwards along with the movable cover, and therefore oil smoke can be effectively captured, the oil smoke suction effect is improved, the turning plate can block the oil smoke, the oil smoke is more effectively captured, and the oil smoke suction effect is further improved. Furthermore, linkage opening and closing of the turning plate and the movable cover are achieved, that is, simultaneous driving of the turning plate and the movable cover by the combined driving mechanism is achieved, the structure is compact, and cost is low.

Description

Technical Field

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

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Range hoods work based on the principle of fluid dynamics, using a centrifugal fan installed inside the range hood to absorb and exhaust oil smoke, and using a filter to filter out some grease particles.

[0003] Since the space in the kitchen is limited, in order to improve the space utilization rate of the kitchen, there are thin range hoods. For thin range hoods, the smoke outlet is close to the wall and far away from the smoke source, resulting in a deviation in the smoke extraction effect. In addition, the internal space of the smoke collecting chamber of the thin range hood is limited, and the oil smoke traction effect is not obvious, which further leads to poor smoking effect.

[0004] A solution has been proposed in the prior art, in which a movable chamber is arranged in the smoke collecting chamber. When the range hood is working, the movable chamber is moved out of the smoke collecting chamber, so that the smoke inlet is moved forward, and the negative pressure area is moved to the rising path of the smoke, which can effectively capture the smoke. The shortcomings of the prior art are that some use vertical panels, which have no blocking effect on the smoke, and the smoke easily overflows the area outside the panel, resulting in poor smoking effect; some use inclined smoke-collecting flaps, but the flipping of the smoke-collecting flap and the movement of the movable chamber use two independent drive mechanisms, resulting in complex structure and high cost. Utility Model Content

[0005] The utility model aims to provide a range hood which improves the range hood absorbing effect and has a compact structure and low cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Range hood, comprising:

[0008] Fixed hood;

[0009] The movable cover is connected to the fixed cover in a sliding manner along the front-rear direction, the movable cover and the fixed cover are enclosed to form a smoke collecting chamber, and the movable cover is provided with a smoke inlet;

[0010] A flap, located at the front side of the fixed hood and the movable hood;

[0011] A linkage rod and a combined driving mechanism, one end of the linkage rod is hinged to the movable cover, and the other end of the linkage rod is hinged to the flap; the combined driving mechanism is used to drive the flap to rotate, and the flap can drive the movable cover to move through the linkage rod.

[0012] As an optimal technical solution for the range hood, a sliding fit assembly is provided between the fixed hood and the movable hood. The sliding fit assembly includes a slide rail and a slider slidingly fitted with the slide rail. The slide rail is provided on one of the fixed hood and the movable hood, and the slider is provided on the other of the fixed hood and the movable hood.

[0013] As a preferred technical solution for the range hood, two groups of sliding fitting components are provided, one group of sliding fitting components is provided between an inner wall on one side of the fixed cover and an outer wall on one side of the movable cover, and the other group of sliding fitting components is provided between an inner wall on the other side of the fixed cover and an outer wall on the other side of the movable cover.

[0014] As an optimal technical solution for the range hood, the combined driving mechanism includes a combined telescopic driving component and a rotating rod. The combined telescopic driving component is located in the fixed cover. The fixed end of the combined telescopic driving component is hinged to the back plate of the fixed cover, the driving end of the combined telescopic driving component is hinged to the middle part of the rotating rod, one end of the rotating rod is hinged to the top plate of the fixed cover, and the other end of the rotating rod is fixedly connected to the flap.

[0015] As a preferred technical solution for the range hood, a rotating rod avoidance hole is provided on the movable hood, and the rotating rod is connected to the combined telescopic driving member and the flap through the rotating rod avoidance hole.

[0016] As a preferred technical solution for the range hood, the combined telescopic drive member is an electric push rod.

[0017] As a preferred technical solution for the range hood, the rotating rod is C-shaped.

[0018] As a preferred technical solution for the range hood, a linkage rod avoidance hole is provided on the movable hood, and the linkage rod connects the flap and the movable hood via the linkage rod avoidance hole.

[0019] As a preferred technical solution for the range hood, there are two linkage rods, which are symmetrically distributed on both sides of the combined driving mechanism.

[0020] As a preferred technical solution for the range hood, the smoke inlet includes a main smoke inlet and an auxiliary smoke inlet, and the area of ​​the main smoke inlet is larger than that of the auxiliary smoke inlet.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a range hood, comprising a fixed hood, a movable hood, a flap, a linkage rod and a joint driving mechanism. The movable hood is slidably connected to the fixed hood along the front-back direction, and a smoke inlet is arranged on the movable hood; the flap is arranged at the front end of the fixed hood, one end of the linkage rod is hinged to the flap, and the other end is hinged to the movable hood, and the joint driving mechanism is used to drive the flap to rotate. When the joint driving mechanism drives the flap to open, the flap pulls the movable hood to move out from the fixed hood through the linkage rod. Since the smoke inlet is arranged on the movable hood, the smoke inlet moves forward with the movable hood, so that the negative pressure area is located on the rising path of the oil smoke, thereby effectively capturing the oil smoke and improving the oil smoke suction effect. At this time, the flap is in an open state, and the flap can block the oil smoke, thereby more effectively capturing the oil smoke and further improving the oil smoke suction effect. When the joint driving mechanism drives the flap to close, the flap pushes the movable hood to retract into the fixed hood through the linkage rod. By setting a linkage rod between the flap and the movable cover, the flap and the movable cover can be opened and closed in a linkage manner, that is, the combined driving mechanism can drive the flap and the movable cover at the same time. Compared with the prior art in which the flap and the movable cover use two independent driving mechanisms, the structure is compact and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the range hood provided by the embodiment of the utility model after the back plate of the fixed cover is removed;

[0024] Figure 2 It is a structural schematic diagram of a fixed cover involved in an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the mobile cover involved in the embodiment of the utility model;

[0026] Figure 4 It is a side view of the movable cover involved in the embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the first articulated bracket involved in the embodiment of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the rotating rod involved in the embodiment of the utility model;

[0029] Figure 7 is a structural schematic diagram of a second articulated bracket involved in an embodiment of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the flap involved in the embodiment of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the linkage rod involved in the embodiment of the utility model;

[0032] Fig.10 It is a structural schematic diagram of the range hood provided by the embodiment of the utility model, when the flap is in a closed state and the movable hood is in a retracted state;

[0033] Fig.11 It is a structural schematic diagram of the range hood provided by an embodiment of the utility model, with the flap in an open state and the movable hood in an extended state.

[0034] In the figure:

[0035] 10. Smoke hood; 11. Fixed hood; 111. Front opening; 112. Slide rail; 113. Back plate; 114. First hinge bracket; 1141. First hinge hole; 115. Second hinge bracket; 1151. Fourth hinge hole; 12. Moving hood; 121. Main smoke inlet surface; 1211. Main smoke inlet port; 122. Auxiliary smoke inlet surface; 1221. Auxiliary smoke inlet port; 123. Sliding block; 124. First linkage rod hinge axis; 125. Rotation rod avoidance hole; 126. Linkage rod avoidance hole;

[0036] 20, flap; 21, fixing bracket; 211, second fixing hole; 22, linkage rod bracket; 221, third linkage rod hinge hole;

[0037] 30. Linkage rod; 31. First linkage rod hinge hole; 32. Second linkage rod hinge hole;

[0038] 40. Combined driving mechanism; 41. Combined telescopic driving member; 42. Rotating rod; 421. Second hinge hole; 422. Third hinge hole; 423. First fixing hole. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] like Figures 1 to 11 As shown, an embodiment of the utility model provides a range hood, including a smoke collecting hood 10, a flap 20, a linkage rod 30 and a combined driving mechanism 40, the smoke collecting hood 10 includes a fixed hood 11 and a movable hood 12, the fixed hood 11 has a front end opening 111, the movable hood 12 is located on the inner side of the fixed hood 11, and is slidably connected to the fixed hood 11 along the front and rear directions, the movable hood 12 can be extended from the front end opening 111 of the fixed hood 11 to the outside of the fixed hood 11 or retracted into the fixed hood 11, the movable hood 12 has a rear end opening, the movable hood 12 and the fixed hood 11 together enclose a smoke collecting chamber, and the movable hood 12 is provided with a smoke inlet. The flap 20 is arranged at the front end of the fixed cover 11, and the flap 20 can open or close the front end opening 111 of the fixed cover 11. One end of the linkage rod 30 is hinged to the flap 20, and the other end is hinged to the movable cover 12. The combined driving mechanism 40 is used to drive the flap 20 to rotate, and the flap 20 can drive the movable cover 12 to move through the linkage rod 30.

[0044] When the joint driving mechanism 40 drives the flap 20 to open, the flap 20 pulls the movable cover 12 to move out from the fixed cover 11 through the linkage rod 30. Since the smoke inlet is arranged on the movable cover 12, the smoke inlet moves forward with the movable cover 12, so that the negative pressure area is located on the rising path of the oil smoke, thereby effectively capturing the oil smoke and improving the oil smoke absorption effect. At this time, the flap 20 is in an open state, and the flap 20 can block the oil smoke, thereby more effectively capturing the oil smoke and further improving the oil smoke absorption effect. When the joint driving mechanism 40 drives the flap 20 to close, the flap 20 pushes the movable cover 12 to retract into the fixed cover 11 through the linkage rod 30. By setting the linkage rod 30 between the flap 20 and the movable cover 12, the linkage opening and closing of the flap 20 and the movable cover 12 is realized, that is, the joint driving mechanism 40 drives the flap 20 and the movable cover 12 at the same time. Compared with the prior art that the flap 20 and the movable cover 12 use two sets of independent driving mechanisms, the structure is compact and the cost is low.

[0045] Further, refer to Figures 1 to 3 A sliding fit assembly is provided between the fixed cover 11 and the movable cover 12, and the sliding fit assembly includes a slide rail 112 and a slider 123 that slides with the slide rail 112. In this embodiment, the slide rail 112 is provided on the fixed cover 11, and the slider 123 is provided on the movable cover 12, but it is not limited thereto, and the slide rail 112 may also be provided on the movable cover 12, and the slider 123 may be provided on the fixed cover 11. By providing the sliding fit assembly, the movable cover 12 moves more smoothly relative to the fixed cover 11, and sliding wear between the movable cover 12 and the fixed cover 11 is avoided.

[0046] Optionally, two groups of slide rails 112 are provided, and the two groups of slide rails 112 are respectively provided on the two opposite inner side walls of the fixed cover 11. Correspondingly, two groups of sliders 123 are provided, and the two groups of sliders 123 are respectively provided on the two opposite outer side walls of the movable cover 12. The two groups of slide rails 112 and the two groups of sliders 123 slide in cooperation with each other in a one-to-one correspondence, so that the movement of the movable cover 12 is more stable. In this embodiment, the number of slide rails 112 included in each group of slide rails 112 is two, and the number of sliders 123 included in each group of sliders 123 is two, but it is not limited thereto. The number of slide rails 112 included in each group of slide rails 112 can be one or more than two, and the number of sliders 123 included in each group of sliders 123 can be one or more than two.

[0047] Specifically, refer to Figure 1 The combined drive mechanism 40 includes a combined telescopic drive member 41 and a rotating rod 42. The combined telescopic drive member 41 is located in the fixed cover 11. The fixed end of the combined telescopic drive member 41 is hinged to the back plate 113 of the fixed cover 11. Optionally, the combined telescopic drive member 41 is hinged to the back plate 113 of the fixed cover 11. Figure 5As shown, the back plate 113 of the fixed cover 11 is fixedly provided with a first hinge bracket 114, and the first hinge bracket 114 is provided with a first hinge hole 1141. The fixed end of the combined telescopic driving member 41 is hinged to the first hinge hole 1141 through a first hinge axis. The driving end of the combined telescopic driving member 41 is hinged to the middle part of the rotating rod 42. Optionally, the combined telescopic driving member 41 can be hinged to the middle part of the rotating rod 42. Figure 6 As shown, a second hinge hole 421 is provided in the middle of the rotating rod 42, and the driving end of the combined telescopic driving member 41 is hinged to the second hinge hole 421 through a second hinge axis. One end of the rotating rod 42 is hinged to the top plate of the fixed cover 11, and optionally, the rotating rod 42 is connected to the top plate of the fixed cover 11. Figure 6 and Figure 7 As shown, one end of the rotating rod 42 is provided with a third hinge hole 422, the top plate of the fixed cover 11 is fixedly provided with a second hinge bracket 115, the second hinge bracket 115 is provided with a fourth hinge hole 1151, and the third hinge hole 422 and the fourth hinge hole 1151 are hingedly connected through a third hinge axis. The other end of the rotating rod 42 is fixedly connected to the flap 20, and optionally, combined with Figure 6 and Figure 8 As shown, the other end of the rotating rod 42 is provided with a first fixing hole 423, the flap 20 is provided with a fixing bracket 21, the fixing bracket 21 is provided with a second fixing hole 211, and the first fixing hole 423 is fixedly connected with the second fixing hole 211 through a fixing member. Figure 3 As shown, the movable cover 12 is provided with a rotating rod avoidance hole 125, and the rotating rod 42 connects the flap 20 and the combined telescopic driving member 41 through the rotating rod avoidance hole 125. Optionally, the rotating rod 42 is a C-shaped rod. Optionally, the combined telescopic driving member 41 is an electric push rod.

[0048] Optionally, continue to refer to Figure 1 , and combined with Figure 3 and Fig. 9 As shown, the movable cover 12 is provided with a first linkage rod hinge shaft 124, and one end of the linkage rod 30 is provided with a first linkage rod hinge hole 31, and the first linkage rod hinge hole 31 is hinged with the first linkage rod hinge shaft 124; continue to refer to Figure 1 , and combined with Figure 8 and Fig. 9 As shown, the other end of the linkage rod 30 is provided with a second linkage rod hinge hole 32, the flap 20 is provided with a linkage rod bracket 22, the linkage rod bracket 22 is provided with a third linkage rod hinge hole 221, and the second linkage rod hinge hole 32 and the third linkage rod hinge hole 221 are hinged through the second linkage rod hinge axis. Figure 1 , and combined with Figure 3As shown, the movable cover 12 is provided with a linkage rod avoidance hole 126, and the linkage rod 30 connects the movable cover 12 and the flap 20 through the linkage rod avoidance hole 126. Optionally, there are two linkage rods 30, and the two linkage rods 30 are symmetrically distributed on both sides of the joint driving mechanism 40, so that when the joint driving mechanism 40 drives the flap 20 and the movable cover 12 to open and close in linkage, the movement of the flap 20 and the movable cover 12 is more stable.

[0049] Reference Fig.10 and Fig.11 The linkage movement process of the flap 20 and the mobile cover 12 is as follows: the joint telescopic driving member 41 extends out, pushing the rotating rod 42 to rotate around the fourth hinge hole 1151 on the second hinge bracket 115, and at the same time, the joint telescopic driving member 41 rotates around the first hinge hole 1141 on the first hinge bracket 114, so that the rotating rod 42 pushes the flap 20 to flip and open. At the same time, the flap 20 drags the linkage rod 30, so that the linkage rod 30 rotates around the first linkage rod hinge hole 31, and at the same time, the linkage rod 30 rotates around the second linkage rod hinge hole 32. Under the pulling force of the linkage rod 30, the mobile cover 12 is dragged to slide relative to the fixed cover 11, thereby realizing the linkage opening of the flap 20 and the mobile cover 12. The linkage closing process of the flap 20 and the mobile cover 12 is the same as the joint opening process, which will not be repeated here.

[0050] Specifically, refer to Figure 3 and Figure 4 , the smoke inlet includes a main smoke inlet 1211 and an auxiliary smoke inlet 1221, the movable cover 12 has a main smoke inlet surface 121 and an auxiliary smoke inlet surface 122, the main smoke inlet 1211 is arranged on the main smoke inlet surface 121, the auxiliary smoke inlet 1221 is arranged on the auxiliary smoke inlet surface 122, and the area of ​​the main smoke inlet 1211 is larger than the area of ​​the auxiliary smoke inlet 1221. In this embodiment, the surface of the movable cover 12 opposite to its rear end opening is the main smoke inlet surface 121, the main smoke inlet surface 121 is a vertical surface, the bottom surface of the movable cover 12 is the auxiliary smoke inlet surface 122, and the auxiliary smoke inlet surface 122 is an inclined surface, but it is not limited thereto, the main smoke inlet surface 121 can be a vertical surface, an inclined surface or an arcuate surface, the auxiliary smoke inlet surface 122 can be a vertical surface, an inclined surface or an arcuate surface, the main smoke inlet surface 121 and the auxiliary smoke inlet surface 122 can be coplanar or non-coplanar. The auxiliary smoke inlet 1221 is used to draw the oil smoke to migrate to the main smoke inlet 1211, thereby strengthening the capture of the oil smoke by the negative pressure area and further improving the oil smoke absorption effect.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A range hood, characterized in that: include: Fixed cover (11); A movable cover (12) is slidably connected to the fixed cover (11) along the front-rear direction, the movable cover (12) and the fixed cover (11) enclose a smoke collecting chamber, and the movable cover (12) is provided with a smoke inlet; A flap (20) is located on the front side of the fixed cover (11) and the movable cover (12); A linkage rod (30) and a combined driving mechanism (40), wherein one end of the linkage rod (30) is hinged to the movable cover (12), and the other end of the linkage rod (30) is hinged to the flap (20); the combined driving mechanism (40) is used to drive the flap (20) to rotate, and the flap (20) can drive the movable cover (12) to move through the linkage rod (30).

2. The range hood according to claim 1, characterized in that: A sliding fit component is provided between the fixed cover (11) and the movable cover (12), and the sliding fit component comprises a slide rail (112) and a slider (123) slidingly fitted with the slide rail (112); the slide rail (112) is provided on one of the fixed cover (11) and the movable cover (12); and the slider (123) is provided on the other of the fixed cover (11) and the movable cover (12).

3. The range hood according to claim 2, characterized in that: The sliding fitting components are provided in two groups, wherein one group of the sliding fitting components is provided between an inner wall on one side of the fixed cover (11) and an outer wall on one side of the movable cover (12), and the other group of the sliding fitting components is provided between an inner wall on the other side of the fixed cover (11) and an outer wall on the other side of the movable cover (12).

4. The range hood according to claim 1, characterized in that: The combined drive mechanism (40) comprises a combined telescopic drive member (41) and a rotating rod (42); the combined telescopic drive member (41) is located in the fixed cover (11); the fixed end of the combined telescopic drive member (41) is hinged to the back plate (113) of the fixed cover (11); the driving end of the combined telescopic drive member (41) is hinged to the middle part of the rotating rod (42); one end of the rotating rod (42) is hinged to the top plate of the fixed cover (11); and the other end of the rotating rod (42) is fixedly connected to the flap (20).

5. The range hood according to claim 4, characterized in that: The movable cover (12) is provided with a rotating rod avoidance hole (125), and the rotating rod (42) is connected to the combined telescopic driving member (41) and the flap (20) through the rotating rod avoidance hole (125).

6. The range hood according to claim 4, characterized in that: The combined telescopic driving member (41) is an electric push rod.

7. The range hood according to claim 4, characterized in that: The rotating rod (42) is C-shaped.

8. The range hood according to claim 1, characterized in that: The movable cover (12) is provided with a linkage rod avoidance hole (126), and the linkage rod (30) connects the flap (20) and the movable cover (12) via the linkage rod avoidance hole (126).

9. The range hood according to claim 1, characterized in that: The number of the linkage rods (30) is two, and the two linkage rods (30) are symmetrically distributed on both sides of the combined drive mechanism (40).

10. The range hood according to any one of claims 1 to 9, characterized in that: The smoke inlet comprises a main smoke inlet (1211) and an auxiliary smoke inlet (1221), and the area of ​​the main smoke inlet (1211) is larger than the area of ​​the auxiliary smoke inlet (1221).

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