Side suction type range hood

Abstract

The present application relates to a kind of side suction type range hood, comprising: cabinet;Smoke baffle;The upper region of the side wall of smoke baffle towards air inlet has auxiliary arm towards the cabinet and inclines to extend;Linkage, located behind smoke baffle, it is rotatably connected on cabinet by first shaft extending along left and right direction, and rotation center is marked as A1;Linkage assembly, including first connecting rod, second connecting rod and third connecting rod;Driving element, its power output end is connected with linkage or linkage assembly, so as to drive linkage assembly and linkage move back and forth to make smoke baffle rotate back and forth.The rotation center between linkage and cabinet, the rotation center between linkage and second connecting rod and the rotation center between linkage and third connecting rod form the three vertices of a triangle, can guarantee the stability of smoke baffle movement process and termination state, without additional limiting piece blocking or pressure, simplify the structure of movement mechanism, make it can be better set in the limited space in cabinet.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a side-suction range hood. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Range hoods are generally categorized into top-mounted and side-mounted types. Side-mounted range hoods utilize the principle of vortex air pressure to absorb most of the cooking fumes close to the stove in an arc shape, reducing adverse effects on human health.

[0003] Current near-suction range hoods, such as the Chinese utility model patent "A Near-Suction Range Hood", patent number ZL201721290314.5 (authorization announcement number CN207539970U), disclose a near-suction range hood, including a shell and a fan system. The shell includes a panel at the front end that is inclined to the horizontal direction. The panel has an opening that serves as the air inlet of the range hood. A smoke baffle is provided on the front side of the panel. The smoke baffle is rotatably connected to the upper part of the panel, so that the smoke baffle can rotate outward to open the air inlet of the range hood or rotate inward to close the air inlet of the range hood. The aforementioned smoke baffle rotates on a fixed axis. After the smoke baffle opens the air inlet, the top edge of the smoke baffle is higher than the top of the cabinet. The top of the cabinet is usually equipped with a cabinet. At this time, the top edge of the smoke baffle is prone to interfering with the bottom of the cabinet or the cabinet door. Therefore, a certain gap is left between the top of the cabinet and the bottom of the cabinet. The existence of the gap makes it easy for dust to accumulate and be difficult to clean, causing inconvenience and cleaning trouble for users.

[0004] To this end, Chinese invention patent application CN202211053824.6 (application publication number CN115325591A) discloses a side-suction range hood, comprising a housing with an air inlet in the upper front area; a smoke baffle positioned on the housing corresponding to the air inlet; a linkage located behind the smoke baffle and mounted on the housing via a mounting shaft; a drive assembly rotatably connected to the linkage at a rotation center D, and the linkage rotatably connected to the housing at a rotation center E; a connecting rod located behind the smoke baffle, with its first end rotatably connected to the smoke baffle and its second end rotatably connected to the linkage at a rotation center F, wherein rotation centers D, E, and F are the three vertices of a triangle, and the connecting rod moves back and forth under the drive of the linkage to rotate the smoke baffle back and forth; and a movable rod that gradually tilts backward from top to bottom, with its lower end mounted on the mounting shaft and its upper end rotatably connected to the smoke baffle via a connecting shaft located above the first end of the connecting rod. The above structural design reduces the gap between the top of the casing and the cabinet, or even eliminates the need for such a gap, thus avoiding the need to clean the gap.

[0005] However, the side-suction range hood in the aforementioned patent application still has certain shortcomings. First, it still uses two hinge structures (i.e., connecting rods) located on the left and right sides of the smoke baffle, connected by a synchronous shaft in the middle. The movement of this mechanism is not continuous and requires compensation through its own structural design. Specifically, it is relatively stable during movement, but in the closed state (opening / closing), it needs to rely on its own structure to hold / press down to maintain relative stability. Its structural design is relatively complex and redundant, which is not conducive to its arrangement in limited space. Second, since the two hinge structures (i.e., connecting rods) on the left and right sides of the smoke baffle are used as driven ends to drive the smoke baffle to rotate, there may be asynchronous operation on both sides. This can cause a step difference after the smoke baffle is closed, affecting the product's refinement and even causing quality problems.

[0006] Therefore, existing range hoods still need further improvement. Summary of the Invention

[0007] The first technical problem to be solved by the present invention is to provide a side-suction range hood that provides a continuous deflection motion of the smoke baffle and maintains stability in both open and closed states, in light of the current state of the prior art.

[0008] The second technical problem to be solved by the present invention is to provide a side-suction range hood that can effectively avoid the problem of asynchronous operation of the left and right sides of the smoke baffle when closing the air inlet, in light of the current state of the prior art.

[0009] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a side-suction range hood, comprising:

[0010] The casing has an air inlet on its front side wall;

[0011] A smoke baffle is disposed on the housing at a position corresponding to the air inlet, and is arranged to be able to rotate forward relative to the housing to open the air inlet or rotate backward to close the air inlet. When the air inlet is closed, the top edge of the smoke baffle is located below the top surface of the housing or flush with the top surface of the housing.

[0012] The upper region of the side wall of the smoke baffle facing the air inlet has an auxiliary support arm that extends inclined toward the inside of the housing.

[0013] It also includes:

[0014] The linkage component is located behind the smoke baffle and is rotatably connected to the housing via a first axis extending in the left-right direction, and the center of rotation is denoted as A1.

[0015] The linkage assembly includes a first linkage, a second linkage, and a third linkage. The first end of the first linkage is rotatably connected to the housing via a second axis extending left and right. The first linkage is also rotatably connected to the first end of the second linkage via a third axis extending left and right. The second end of the second linkage is rotatably connected to the first position of the auxiliary arm via a fourth axis extending left and right. The first end of the third linkage is rotatably connected to the second position of the auxiliary arm via a fifth axis extending left and right. In the length direction of the auxiliary arm, the second position of the auxiliary arm is located between the first position of the auxiliary arm and the position where the auxiliary arm is connected to the main body of the smoke baffle. The linkage member is rotatably connected to the second linkage via a sixth axis extending left and right, and the rotation center is denoted as A2. The linkage member is rotatably connected to the second end of the third linkage via a seventh axis extending left and right, and the rotation center is denoted as A3. The rotation centers A1, A2, and A3 are the three vertices of a triangle. The position of rotation center A2 is higher than the positions of rotation centers A1 and A3, and the position of rotation center A1 is located in front of the position of rotation center A2.

[0016] The driving component has its power output end connected to the linkage component or linkage assembly, thereby driving the linkage assembly and linkage component to move back and forth so that the smoke baffle rotates back and forth.

[0017] In order to install the corresponding components of the motion mechanism on the housing, the inner wall of the front side wall of the housing is provided with a fixing seat, and the first shaft and the second shaft are both installed on the fixing seat.

[0018] To ensure the stability of the linkage plate and the first connecting rod relative to the housing, the fixed base includes a first side wall and a second side wall arranged at intervals in the left-right direction, and the two ends of the first shaft and the two ends of the second shaft are respectively installed on the first side wall and the second side wall of the fixed base.

[0019] To further ensure the stability of the motion mechanism during operation, the linkage is located between the first and second side walls of the fixed seat. It includes two linkage plates arranged relatively spaced apart in the left and right direction and a connecting rod extending left and right for connecting the two linkage plates together. The two linkage plates are respectively located adjacent to the first and second side walls of the fixed seat.

[0020] The first axis, the sixth axis, and the seventh axis are all connected between the two linkage plates of the linkage component.

[0021] Generally speaking, the linkage plate can adopt a plate structure, bracket structure, etc. that can achieve the above three rotation centers. Preferably, in order to ensure the overall strength of the linkage plate and avoid deformation during rotation, each linkage plate is a polygonal rotation plate, and the rotation centers A1, A2 and A3 are located at the corresponding corners of the rotation plate.

[0022] In order to arrange the third link in a reasonable space and avoid interference with other components, the third link is located below the second link, and its second end is located between the two linkage plates of the linkage component.

[0023] To ensure the stability of the smoke baffle during its deflection, the smoke baffle has two auxiliary arms spaced apart on the left and right. The fourth shaft is connected to the two auxiliary arms, and the first end of the third link is located in the gap between the two auxiliary arms and is rotatably connected to the fifth shaft.

[0024] To ensure the stability of the second link during its forward and backward deflection and to avoid swaying, the second link is generally plate-shaped extending to the left and right. The first end of the second link has two first arms spaced apart to the left and right, both of which are connected to the third shaft. The second end of the second link has two second arms spaced apart to the left and right, both of which are connected to the fourth shaft.

[0025] To ensure the stability of the first link during its forward and backward deflection and to avoid swaying, the first link is generally a plate extending to the left and right. The second shaft passes through the first end of the first link and connects to the first and second side walls of the fixed base. The third shaft passes through the first link and connects to the two first arms of the second link.

[0026] The technical solution adopted by the invention to solve the second technical problem mentioned above is as follows: the motion mechanism is arranged at the middle position of the casing in the left-right direction, and the auxiliary support arm is also correspondingly arranged at the middle position of the smoke baffle in the left-right direction. By arranging the motion mechanism at the middle position of the casing in the left-right direction, the synchronicity of both sides of the smoke baffle during operation can be achieved, and the force on both sides of the smoke baffle is evenly distributed when the air inlet is closed, avoiding the problem of incomplete closure on one side.

[0027] Generally speaking, the driving component can adopt various existing technologies such as drive motors and electric push rods, and the power output end of the driving component can act on the linkage plate, that is, on any link of the linkage assembly. The driving component includes a drive motor, which is also mounted on the fixed base. Its output shaft is connected to the first shaft, thereby driving the linkage component to rotate around the axis of the first shaft.

[0028] To simplify the connection structure between the first link and the second link and to avoid interference with other components during rotation, the third shaft passes through the second end of the first link and connects to the two first arms of the second link.

[0029] As another preferred embodiment, the driving component includes an electric push rod, which includes a push rod body rotatably connected to the housing in a manner that allows it to rotate up and down relative to the housing, and a driving rod that can linearly extend and retract relative to the push rod body. The driving rod is rotatably connected to the first connecting rod through an eighth axis that extends left and right, thereby driving the connecting rod assembly and the linkage to deflect in the front-back direction.

[0030] In order to achieve the connection between the electric push rod and the first connecting rod, so as to apply force to the first connecting rod more reasonably to drive the entire connecting rod assembly to move, the eighth shaft is installed at the second end of the first connecting rod away from the fixed base, and the position where the first end of the second connecting rod is connected to the first connecting rod is located between the first end and the second end of the first connecting rod.

[0031] To facilitate the provision of installation space in the middle of the housing for mounting the aforementioned connecting rod assembly, linkage components, and other parts, the top of the housing has a protruding edge extending forward from the front sidewall of the housing, and the top edge of the smoke baffle is located at the position where the protruding edge meets the front sidewall of the housing.

[0032] As an improvement, the front sidewall of the housing also has an opening through which the third link of the auxiliary arm and linkage assembly passes.

[0033] Compared with the prior art, the advantages of this invention are as follows: The motion mechanism is formed by the cooperation of the linkage assembly and the linkage member to form an integrated linkage structure. Its motion process is continuous and there will be no disengagement problem. During the opening of the smoke baffle, the top edge of the smoke baffle moves slightly forward and downward. In this way, after the smoke baffle is opened, its top will not be higher than the set position of the housing, and the gap between the smoke baffle and the housing is also reduced, thus reducing the escape of oil fumes. In addition, the above-mentioned integrated linkage structure, since the rotation center between the linkage member and the housing, the rotation center between the linkage member and the second linkage, and the rotation center between the linkage member and the third linkage form the three vertices of a triangle, can ensure the stability of the smoke baffle during the movement of the smoke baffle and when the smoke baffle is in the open or closed air inlet state. No additional limiting members are needed to block or apply pressure, simplifying the structure of the motion mechanism and allowing it to be better set in the limited space inside the housing. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the range hood according to Embodiment 1 of the present invention;

[0035] Figure 2 This is a left view of the range hood according to Embodiment 1 of the present invention;

[0036] Figure 3 This is a three-dimensional structural diagram of the range hood of Embodiment 1 of the present invention, viewed from the bottom.

[0037] Figure 4 This is a sectional perspective view of the range hood of Embodiment 1 of the present invention, which is vertically cut along the front-to-back direction (the smoke baffle is in the open state).

[0038] Figure 5 This is a three-dimensional structural diagram of the motion mechanism of the range hood in Embodiment 1 of the present invention (the fixed base is omitted).

[0039] Figure 6 This is an exploded view of the motion mechanism of the range hood according to Embodiment 1 of the present invention;

[0040] Figure 7 This is a schematic diagram of the motion mechanism of Embodiment 1 of the present invention in the state of the smoke baffle being opened;

[0041] Figure 8 This is a sectional perspective view of the range hood of Embodiment 1 of the present invention, which is vertically cut along the front-to-back direction (the smoke baffle is in the closed state).

[0042] Figure 9 This is a schematic diagram of the motion mechanism of Embodiment 1 of the present invention in the state of the smoke baffle being closed;

[0043] Figure 10 This is a sectional perspective view of the range hood of Embodiment 2 of the present invention, which is vertically cut along the front-to-back direction (the smoke baffle is in the closed state).

[0044] Figure 11 This is a three-dimensional structural diagram of the motion mechanism of the range hood according to Embodiment 2 of the present invention;

[0045] Figure 12 This is a left view of the motion mechanism of the range hood in Embodiment 2 of the present invention. Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0047] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0048] Example 1

[0049] See Figures 1-9The present invention illustrates a preferred embodiment of the side-suction range hood, which includes a housing 10, a fan system, a smoke baffle 20, and a motion mechanism for moving the smoke baffle 20.

[0050] The casing 10 of a side-draft range hood generally includes a fan frame 102 and a smoke collection hood 101 connected to the bottom of the fan frame 102, wherein the smoke collection hood 101 is connected to the fan frame 102. The fan system can be a centrifugal fan, installed in the internal space of the fan frame 102. The front side wall 11 of the smoke collection hood 101 gradually slopes from top to bottom and rearward. An air inlet 12 is formed on the front side wall 11 of the smoke collection hood 101. The air inlet 12 can be a single air inlet 12 extending in the left-right direction, or two air inlets spaced apart in the left-right direction. The smoke baffle 20 is driven by the aforementioned motion mechanism, and can deflect forward relative to the casing 10 to open the air inlet 12 or deflect backward to close the air inlet 12. The size of the smoke baffle 20 can be adapted to the size of the air inlet 12 so that it can just block the air inlet 12 when closed. Alternatively, it can be a relatively large "large plate structure", such as being basically the same size as the front side wall 11 of the smoke hood 101, so that it fits against the front side wall 11 of the smoke hood 101 when closed, thereby also blocking the air inlet 12.

[0051] The top of the housing 10 (i.e. the fan cover) in this embodiment also has a protruding edge 13 extending forward from its front sidewall 11. When the air inlet 12 is closed by the smoke baffle 20, the top edge of the smoke baffle 20 is located below the top surface of the smoke collection hood 101. Specifically, the top edge of the smoke baffle 20 is located at the position where the protruding edge meets the front sidewall 11 of the housing 10.

[0052] The upper region of the side wall of the smoke baffle 20 facing the air inlet 12 has an auxiliary support arm 22 extending obliquely inward toward the housing 10. Specifically, the auxiliary support arm 22 extends obliquely upward from the inner side wall of the smoke baffle 20. There are two auxiliary supports, spaced apart in the left-right direction. The two auxiliary supports 22 can be designed as a single piece, connected to the smoke baffle support 21 on the inner side wall of the smoke baffle 20. More specifically, both auxiliary supports 22 are positioned at the middle of the left-right direction of the smoke baffle 20.

[0053] See Figures 5-9 The motion mechanism in this embodiment includes a fixed base 50, a linkage 30, a connecting rod assembly, and a driving component.

[0054] The mounting bracket 50 is located inside the housing 10, specifically on the inner wall of the front side wall 11 of the smoke hood 101, and above the location of the air inlet 12. Figure 6As shown, the mounting base 50 includes a first sidewall 51 and a second sidewall 52 spaced apart in the left-right direction. The lower edges of the first sidewall 51 and the second sidewall 52 can be connected together by another plate wall, thereby forming a frame structure with an open upper part. The open upper part of the mounting base 50 can avoid interference with components such as the auxiliary support arm 22 and connecting rod assembly of the smoke baffle 20. Of course, it is conceivable that the mounting base 50 can also be designed as two separate parts with the first sidewall 51 and the second sidewall 52 as the main body.

[0055] The linkage 30 is rotatably connected to the aforementioned fixed base 50 via a first shaft 61 extending in the left-right direction, and its rotation center relative to the fixed base 50 is denoted as A1. Specifically, the linkage 30 is located between the first side wall 51 and the second side wall 52 of the fixed base 50, and includes two linkage plates 31 arranged relatively spaced apart in the left-right direction, and a connecting rod 32 extending left and right for connecting the two linkage plates 31 together. The two linkage plates 31 are respectively disposed adjacent to the first side wall 51 and the second side wall 52 of the fixed base 50. In this embodiment, both linkage plates 31 are triangular rotating plates, and the rotating plates are arranged vertically in the front-back direction. The three corner positions of the rotating plates can serve as rotation centers A1, A2, and A3, which are respectively rotatably connected to the fixed base 50, the second connecting rod 42 of the connecting rod assembly, and the third connecting rod 43.

[0056] The linkage assembly includes a first link 41, a second link 42, and a third link 43. The first link 41 is a plate-like structure extending laterally, with its first end rotatably connected to the first sidewall 51 and the second sidewall 52 of the mounting base 50 via a second axis 62 extending laterally. The width of the first link 41 is substantially the same as the distance between the two sidewalls of the mounting base 50. The second link 42 is also a plate-like structure extending laterally. Its first end has two first arms 421 spaced laterally, which are connected to the second end of the first link 41 via a third axis 63 extending laterally. The second end of the second link 42 has two second arms 422 spaced laterally, which are connected to the first positions 221 of two auxiliary arms 22 of the smoke baffle 20 via a fourth axis 64 extending laterally. The first positions 221 of the auxiliary arms 22 are located at the ends of the auxiliary arms 22 furthest from the main body of the smoke baffle 20. The third link 43 is located below the second link 42. Its first end (i.e., the front end) is rotatably connected to the second position 222 of the two auxiliary arms 22 via the fifth axis 65 extending to the left and right. In the length direction of the auxiliary arm 22, the second position 222 of the auxiliary arm 22 is located between the first position 221 of the auxiliary arm 22 and the position where the auxiliary arm 22 is connected to the main body of the smoke baffle 20.

[0057] In this embodiment, the two linkage plates 31 of the linkage component 30 are rotatably connected to the second link 42 via a left-right extending sixth shaft 66, and the rotation center is denoted as A2. The third link 43 is also a left-right extending plate-like structure. The second end of the third link 43 extends between the two linkage plates 31 of the linkage component 30 and is rotatably connected to the two linkage plates 31 via a left-right extending seventh shaft 67, and the rotation center is denoted as A3. The aforementioned rotation centers A1, A2, and A3 are the three vertices of a triangle, corresponding to the three corner positions of the rotating plates. Among them, the position of the rotation center A2 of the linkage component 30 is higher than the positions of the rotation centers A1 and A3, and the position of the rotation center A1 is located in front of the position of the rotation center A2.

[0058] In this embodiment, the driving component is a drive motor 70, such as... Figure 4 As shown, the drive motor 70 is mounted on the second side wall 52 of the fixed base 50. The output shaft of the drive motor 70 is connected to the first shaft 61, thereby driving the linkage 30 to rotate forward or backward about the first shaft 61 as the axis (the first shaft 61 and the linkage plate 31 of the linkage 30 can adopt a structure with an upper limit in the circumferential direction). When the linkage 30 rotates forward or backward, the linkage assembly as a whole also deflects forward or backward, so as to drive the smoke baffle 20 to deflect back and forth.

[0059] The front side wall 11 of the housing 10 also has an opening 110 through which the auxiliary support arm 22 and the third connecting rod 43 of the connecting rod assembly pass. In this embodiment, the motion mechanism is arranged at the middle position of the housing 10 in the left-right direction, and correspondingly, the auxiliary support arm 22 is also located at the middle position of the smoke baffle 20 in the left-right direction. By setting the motion mechanism at the middle position of the housing 10 in the left-right direction, the synchronicity of the two sides of the smoke baffle 20 during operation can be achieved, and the smoke baffle 20 is subjected to uniform force on both sides when the air inlet 12 is closed, avoiding the problem of one side not closing tightly.

[0060] Because the motion mechanism is formed by the linkage assembly and the linkage member 30 to form an integrated linkage structure, its movement process is continuous and there will be no disengagement problem. During the opening of the smoke baffle 20, the top edge of the smoke baffle 20 also moves slightly forward and downward. In this way, after the smoke baffle 20 is opened, its top will not be higher than the set position of the housing 10 (such as the position where the front side wall 11 meets the protrusion 13), and the gap between it and the housing 10 is also reduced, reducing the escape of oil fumes. In addition, the above-mentioned integrated linkage structure, because the rotation center between the linkage member 30 and the housing 10, the rotation center between the linkage member 30 and the second linkage 42, and the rotation center between the linkage member 30 and the third linkage 43 form the three vertices of a triangle, can ensure the stability of the smoke baffle 20 during its movement and when the smoke baffle 20 is in the open or closed state of the air inlet 12. No additional limiting members are needed to block or apply pressure, simplifying the structure of the motion mechanism and allowing it to be better set in the limited space inside the housing 10.

[0061] Example 2

[0062] See Figures 10-12 This illustrates another preferred embodiment of the invention. The difference between this embodiment and Embodiment 1 lies in the driving component and its mounting position. Specifically, in this embodiment, the driving component is an electric push rod 80. The electric push rod 80 includes a push rod body 81 rotatably connected to the housing 10 in a manner that allows it to rotate up and down relative to the housing 10, and a driving rod 82 capable of linear extension and retraction relative to the push rod body 81. Figure 10 As shown, the electric push rod 80 also tilts backward from top to bottom. The lower end of the push rod body 81 is rotatably connected to the rear side wall of the smoke hood 101 via the hinge seat 83. The drive rod 82 can extend and retract linearly relative to the push rod body 81 at an angle upward. The upper end of the drive rod 82 is rotatably connected to the first connecting rod 41 via the eighth shaft 68 extending left and right, thereby driving the connecting rod assembly and the linkage 30 to deflect in the front and back direction.

[0063] To achieve the connection between the electric push rod 80 and the first connecting rod 41, and thus to more effectively apply force to the first connecting rod 41 to drive the entire connecting rod assembly to move, the connection position between the first connecting rod 41 and the second connecting rod 42 of the motion mechanism in this embodiment has been adjusted compared to Embodiment 1. Specifically, the eighth shaft 68 is installed at the second end of the first connecting rod 41 away from the fixed base 50, and the first end of the second connecting rod 42 is connected to the first connecting rod 41 at a position between the first end and the second end of the first connecting rod 41. Furthermore, to avoid interference from the fixed base 50 on the movement of the drive rod 82 of the electric push rod 80 and the deflection of the first connecting rod 41, the fixed base 50 is designed as two separate components with the first sidewall 51 and the second sidewall 52 as the main body.

Claims

1. A side-draft range hood, comprising: The casing (10) has an air inlet (12) on its front side wall (11); A smoke baffle (20) is provided on the housing (10) at a position corresponding to the air inlet (12), and is arranged to be able to rotate forward relative to the housing (10) to open the air inlet (12) or rotate backward to close the air inlet (12); Its features are: The upper region of the side wall of the smoke baffle (20) facing the air inlet (12) has an auxiliary support arm (22) that extends obliquely into the housing (10); It also includes a sports mechanism, which includes: Linkage component (30), located behind the smoke baffle (20), is rotatably connected to the housing (10) via a first shaft (61) extending in the left-right direction, and the center of rotation is denoted as A1; The linkage assembly includes a first link (41), a second link (42), and a third link (43). The first end of the first link (41) is rotatably connected to the housing (10) via a second axis (62) extending laterally. The first link (41) is also rotatably connected to the first end of the second link (42) via a third axis (63) extending laterally. The second end of the second link (42) is rotatably connected to the first position (221) of the auxiliary arm (22) via a fourth axis (64) extending laterally. The first end of the third link (43) is rotatably connected to the second position (222) of the auxiliary arm (22) via a fifth axis (65) extending laterally. Along the length of the auxiliary arm (22), The second position (222) of the auxiliary arm (22) is located between the first position (221) of the auxiliary arm (22) and the position where the auxiliary arm (22) is connected to the main body of the smoke baffle (20). The linkage (30) and the second connecting rod (42) are rotatably connected by the sixth axis (66) extending to the left and right, and the rotation center is denoted as A2. The second end of the linkage (30) and the third connecting rod (43) are rotatably connected by the seventh axis (67) extending to the left and right, and the rotation center is denoted as A3. The above-mentioned rotation centers A1, A2 and A3 are the three vertices of a triangle. The position of rotation center A2 is higher than the positions of rotation center A1 and rotation center A3. The position of rotation center A1 is located in front of the position of rotation center A2. The driving component has its power output end connected to the linkage component (30) or the linkage assembly, thereby driving the linkage assembly and the linkage component (30) to move back and forth so that the smoke baffle (20) rotates back and forth.

2. The side-suction range hood according to claim 1, characterized in that: The inner wall of the front side wall (11) of the housing (10) is provided with a fixing seat (50), and the first shaft (61) and the second shaft (62) are both mounted on the fixing seat (50).

3. The side-suction range hood according to claim 2, characterized in that: The fixing seat (50) includes a first sidewall (51) and a second sidewall (52) arranged at intervals in the left and right directions. The two ends of the first shaft (61) and the two ends of the second shaft (62) are respectively mounted on the first sidewall (51) and the second sidewall (52) of the fixing seat (50).

4. The side-suction range hood according to claim 3, characterized in that: The linkage (30) is located between the first side wall (51) and the second side wall (52) of the fixed base (50), and includes two linkage plates (31) arranged at intervals in the left and right direction and a connecting rod (32) extending in the left and right for connecting the two linkage plates (31) together. The two linkage plates (31) are respectively arranged adjacent to the first side wall (51) and the second side wall (52) of the fixed base (50). The first shaft (61), the sixth shaft (66) and the seventh shaft (67) are all connected between the two linkage plates (31) of the linkage member (30).

5. The side-suction range hood according to claim 4, characterized in that: Each linkage plate (31) is a polygonal rotating plate, and the rotation centers A1, A2 and A3 are located at the corresponding corners of the rotating plate.

6. The side-suction range hood according to claim 4, characterized in that: The third link (43) is located below the second link (42), and its second end is located between the two linkage plates (31) of the linkage member (30).

7. The side-suction range hood according to claim 4, characterized in that: The smoke baffle (20) has two auxiliary arms (22) spaced apart on the left and right. The fourth shaft (64) is connected to the two auxiliary arms (22). The first end of the third link (43) is located in the gap between the two auxiliary arms (22) and is rotatably connected to the fifth shaft (65).

8. The side-suction range hood according to claim 4, characterized in that: The second link (42) is generally plate-shaped extending to the left and right. The first end of the second link (42) has two first arms (421) spaced apart to the left and right. Both first arms (421) are connected to the third shaft (63). The second end of the second link (42) has two second arms (422) spaced apart to the left and right. Both second arms (422) are connected to the fourth shaft (64).

9. The side-suction range hood according to claim 8, characterized in that: The motion mechanism is located at the center of the housing (10) in the left-right direction, and the auxiliary support arm (22) is also located at the center of the smoke baffle (20) in the left-right direction.

10. The side-suction range hood according to claim 8, characterized in that: The first connecting rod (41) is generally in the shape of a plate extending left and right. The second shaft (62) passes through the first end of the first connecting rod (41) and connects to the first side wall (51) and the second side wall (52) of the fixed base (50). The third shaft (63) passes through the first connecting rod (41) and connects to the two first arms (421) of the second connecting rod (42).

11. The side-suction range hood according to any one of claims 1 to 10, characterized in that: The driving component includes a drive motor (70) fixed relative to the housing (10), whose output shaft is connected to the first shaft (61), thereby driving the linkage (30) to rotate around the axis of the first shaft (61).

12. The side-suction range hood according to claim 10, characterized in that: The third shaft (63) passes through the second end of the first link (41) and is connected to the two first arms (421) of the second link (42).

13. The side-suction range hood according to any one of claims 1 to 10, characterized in that: The driving component includes an electric push rod (80), which includes a push rod body (81) rotatably connected to the housing (10) in a manner that allows it to rotate up and down relative to the housing (10), and a driving rod (82) that can linearly extend and retract relative to the push rod body (81). The driving rod (82) is rotatably connected to the first connecting rod (41) through an eighth axis (68) extending left and right, thereby driving the connecting rod assembly and the linkage (30) to deflect in the front and rear directions.

14. The side-suction range hood according to any one of claims 2 to 10, characterized in that: The driving component includes an electric push rod (80), which includes a push rod body (81) rotatably connected to the housing (10) in a manner that rotates up and down relative to the housing (10), and a driving rod (82) that can linearly extend and retract relative to the push rod body (81). The driving rod (82) is rotatably connected to the first connecting rod (41) through an eighth axis (68) extending left and right, thereby driving the connecting rod assembly and the linkage (30) to deflect in the front and rear directions. The eighth shaft (68) is installed at the second end of the first connecting rod (41) away from the fixed seat (50), and the position where the first end of the second connecting rod (42) is connected to the first connecting rod (41) is located between the first end and the second end of the first connecting rod (41).

15. The side-suction range hood according to any one of claims 1 to 10, characterized in that: The top of the housing (10) has a protruding edge (13) extending forward from the front sidewall (11) of the housing (10), and the top edge of the smoke baffle (20) is located at the position where the protruding edge meets the front sidewall (11) of the housing (10).

16. The side-suction range hood according to any one of claims 1 to 10, characterized in that: The front sidewall (11) of the housing (10) also has an opening (110) through which the auxiliary arm (22) and the third link (43) of the linkage assembly pass.

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