Side suction range hood

Abstract

The present invention relates to a side suction type oil fume extractor, comprising a housing, an upper area of ​​the front side having an air inlet; a smoke baffle, which is arranged at a position of the housing 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, and when the air inlet is in a closed state, 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; a driving mechanism, the power output end of which is rotatably connected to the back of the smoke baffle and the rotation center is A, and is used to drive the smoke baffle to rotate forward and backward; a movable rod, which is located behind the smoke baffle and gradually tilts backward from top to bottom, its lower end is rotatably connected to the housing, and its upper end is rotatably connected to the back of the smoke baffle and is located above the rotation center A, and the extension direction of the rotation axis of the upper and lower ends of the movable rod extends along the left and right direction. The gap between the top of the housing and the cabinet can be reduced, and there is no need to leave a gap between the top of the housing and the wall cabinet, thereby avoiding cleaning in the gap.

Description

Technical Field

[0001] The invention belongs to the technical field of range hoods, and in particular relates to a side-suction range hood. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Usually, range hoods include top suction type and near (side) suction type. The near suction type range hood uses the principle of vortex wind pressure to absorb most of the oil smoke close to the stove in an arc form, which can reduce the adverse effects on human health.

[0003] Current close-suction range hoods, such as the Chinese utility model patent "A close-suction range hood", whose patent number is ZL201721290314.5 (authorization announcement number is CN207539970U), disclose a close-suction range hood, including a shell and a fan system, the shell includes a panel located at the front end and inclined to the horizontal direction, the panel is provided with an opening to become the air inlet of the range hood, the front side of the panel is provided with a smoke screen, the smoke screen is rotatably connected to the upper part of the panel, so that the smoke screen can rotate outward to open the air inlet of the range hood, or rotate inward to close the air inlet of the range hood.

[0004] The above patent has the following defects:

[0005] After the smoke damper opens the air inlet, the top edge of the smoke damper is higher than the top of the box body, and a cabinet is usually installed on the top of the box body (casing). At this time, the top edge of the smoke damper is easy to interfere with the bottom of the cabinet or the door of the cabinet. For this reason, a certain gap is left between the top of the box body and the bottom of the cabinet. The existence of the gap makes it easy for dust to accumulate and is difficult to clean, which brings inconvenience and cleaning problems to users.

[0006] Therefore, it is necessary to further improve the existing close-suction range hood. Summary of the invention

[0007] The first technical problem to be solved by the present invention is to provide a side-suction range hood in which the top edge of the smoke baffle is not higher than the top of the box body after the air inlet is opened, in view of the current status of the above-mentioned prior art.

[0008] The second technical problem to be solved by the present invention is to provide a side-suction range hood that prevents the smoke baffle from shaking after the air inlet is fully opened.

[0009] The third technical problem to be solved by the present invention is to provide a side-suction range hood that keeps the smoke baffle stable after the air inlet is closed.

[0010] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a side-suction fume suction device, comprising:

[0011] A housing having an air inlet in an upper area of ​​a front side thereof;

[0012] a smoke shield, arranged at a position of the housing corresponding to the air inlet, and arranged to be able to rotate forward relative to the housing to open the air inlet or rotate backward relative to the housing to close the air inlet, wherein when the air inlet is in a closed state, the top edge of the smoke shield is located below the top surface of the housing or is flush with the top surface of the housing;

[0013] It is characterized by also including:

[0014] A driving mechanism, whose power output end is rotatably connected to the back of the smoke shield and whose rotation center is A, is used to drive the smoke shield to rotate forward and backward; and

[0015] The movable rod is located behind the smoke baffle and gradually tilts backward from top to bottom. Its lower end is rotatably connected to the casing, and its upper end is rotatably connected to the back of the smoke baffle and is located above the rotation center A. The extension direction of the rotation axis at the upper and lower ends of the movable rod extends along the left and right direction.

[0016] Preferably, the driving mechanism is located behind the smoke shield, and includes a connecting rod, a transmission member for driving the connecting rod to move forward and backward, and a driver for driving the transmission member to rotate, the rotation axis of the transmission member extends along the left-right direction, the connecting rod is arranged along the front-back direction, and the front end of the connecting rod is rotationally connected to the smoke shield with the rotation center being A, and the rear end of the connecting rod is rotationally connected to the corresponding position of the transmission member. In addition, a structural form of a counterweight block, a driver and an arc rod can also be adopted, see patent number ZL201420060233.6 for details.

[0017] In order to adjust the opening of the smoke shield according to actual needs, when the air inlet is in the open state, the smoke shield has a first position and a second position. When the smoke shield is in the first position, the lower end of the smoke shield swings forward to reach the second position. In this way, when the smoke shield is in the second position, the air inlet is in a fully opened state; in addition, when the smoke shield is in the first position and the second position, the height of the top edge of the smoke shield remains unchanged.

[0018] In order to prevent the upper end of the movable rod from continuing to rotate upward when the air inlet is in the open state, and to keep the top edge of the smoke shield unchanged, a limiting portion capable of limiting the upper end of the movable rod from rotating downward is also included. When the air inlet is in the open state, the limiting portion abuts against the corresponding position of the movable rod. Thus, the existence of the aforementioned limiting portion prevents the upper end of the movable rod from continuing to rotate downward, that is, it cannot drive the smoke shield to continue to move downward, and the height of the top edge of the smoke shield remains unchanged.

[0019] The technical solution adopted by the present invention to solve the second technical problem is as follows: the lower end of the movable rod is rotatably connected to the housing through a mounting shaft extending left and right, and the movable rod and the transmission member are arranged in sequence along the left and right directions, and the transmission member is provided with a convex portion extending toward the movable rod, and the convex portion is located on the movable rod, and when the smoke shield is in the second position, the transmission member rotates until its convex portion abuts against the position of the movable rod located on the mounting shaft. The presence of the aforementioned limiting portion prevents the upper end of the movable rod from continuing to rotate downward, and the presence of the aforementioned convex portion prevents the upper end of the movable rod from continuing to rotate upward, thus ensuring that the movable rod is in a stable state, thereby ensuring that the smoke shield will not shake.

[0020] There are many structural forms of the limiting part, but preferably, the housing is provided with a mounting plate arranged vertically and along the front-to-back direction, the movable rod is located between the transmission member and the mounting plate, the mounting shaft is installed on the mounting plate, the limiting part is formed on the mounting plate and protrudes toward the movable rod, the first part of the movable rod located below the mounting shaft is located below the limiting part, and when the air inlet is in an open state, the first part abuts against the limiting part. The mounting plate is formed with a mounting hole for the mounting shaft to be inserted therein, the aforementioned limiting part can also be a protrusion formed on the inner circumference of the mounting hole, and the mounting shaft is provided with an arc groove extending along its circumference for the protrusion to slide and limit therein.

[0021] In order to facilitate the installation of the fan in the range hood and improve the aesthetics, the inside of the casing is provided with a chamber connected to the air inlet, the mounting plate is located in the chamber and is arranged side by side with the left and right side wall panels of the casing, the top of the mounting plate is connected to the top wall of the chamber, and the limiting portion is formed on the rear edge of the mounting plate.

[0022] In order to make the smoke baffle plate rotate more smoothly and reliably, the center of the connection between the transmission member and the driver is C, and the connecting line AC intersects with the movable rod.

[0023] The movable rod may be a curved rod or a straight rod, but preferably, the movable rod is a straight rod.

[0024] In order to prevent the edge of the casing from interfering with the rotation of the transmission member during the opening and closing process of the smoke baffle, the transmission member is an arc-shaped arm with an opening facing forward, and the output shaft of the driver extends in the left and right directions and is located above the connecting rod. The upper end of the arc-shaped arm is installed on the output shaft of the driver, and the lower end of the arc-shaped arm is rotatably connected to the rear end of the connecting rod.

[0025] The technical solution adopted by the present invention to solve the above-mentioned third technical problem is: an extension plate is extended backwards at a position adjacent to the lower portion of the rear side of the movable rod, and the extension plate is located behind the convex portion, and the extension plate is provided with an extension portion extending in the direction of the arc-shaped arm. When the air inlet is in a closed state, the front side of the extension portion is abutted against the position of the arc-shaped arm behind the convex portion.

[0026] In order to keep the left and right sides of the smoke shield synchronized during rotation, the connecting rod and the transmission member form a transmission mechanism. The transmission mechanism has two groups, which are respectively arranged on the left and right sides of the smoke shield. Each group of transmission mechanisms corresponds to a movable rod, and the driver is a dual-output shaft motor. The power input end of each group of transmission mechanisms is relatively fixedly connected to the corresponding output shaft of the dual-output shaft motor.

[0027] In order to filter the oil smoke, the casing has a chamber inside, in which an inner panel is arranged side by side with the surface where the air inlet is located, a filter is installed on the inner panel at a position corresponding to the air inlet, and the inner panel is provided with a through groove for at least the movable rod to pass through.

[0028] The surface where the air inlet is located can be arranged vertically or inclined. However, in order to absorb most of the oil smoke close to the stove in an arc form, the surface where the air inlet is located gradually tilts backward from top to bottom.

[0029] Compared with the prior art, the advantage of the present invention is that the side-suction range hood drives the lower part of the smoke baffle to rotate forward and backward through the driving mechanism, and the lower end of the movable rod is rotatably connected to the casing, and the upper end of the movable rod is rotatably connected to the smoke baffle, and the upper end of the movable rod is located above the connection between the driving mechanism and the smoke baffle, that is, the upper part of the smoke baffle rotates relative to the casing together with the movable rod. When the air inlet needs to be opened, the driving mechanism drives the lower part of the smoke baffle to rotate forward. At this time, the movable rod moves downward under the action of the gravity of the smoke baffle. In this way, the smoke baffle will move downward until its top edge is not higher than the top surface of the box body, that is, the opening of the smoke baffle will not interfere with the cabinet. Therefore, the gap between the top of the casing and the cabinet can be reduced, and there is even no need to leave a gap between the top of the casing and the wall cabinet, thereby avoiding cleaning in the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the air inlet in the embodiment 1 in a closed state;

[0031] Figure 2 for Figure 1 A cross-sectional view of

[0032] Figure 3 for Figure 1 Structural diagram of the middle part structure;

[0033] Figure 4 This is a schematic diagram of the structure of the air inlet of Embodiment 1 in an open state;

[0034] Figure 5 for Figure 4 A schematic diagram of the structure from another angle;

[0035] Figure 6 for Figure 4 A cross-sectional view of

[0036] Figure 7 for Figure 4 A partial structural diagram of

[0037] Figure 8 This is a schematic diagram of the structure of the air inlet in the second embodiment in a closed state;

[0038] Fig. 9 for Figure 2 A cross-sectional view of

[0039] Fig.10 for Figure 2 Structural diagram of the middle part structure;

[0040] Fig.11 This is a schematic diagram of the structure of the air inlet of Embodiment 2 in an open state;

[0041] Fig.12 for Fig.11 A schematic diagram of the structure from another angle;

[0042] Fig.13 for Fig.11 A cross-sectional view of

[0043] Fig.14 for Fig.10 Schematic diagram of part of the structure. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below with reference to the accompanying drawings.

[0045] Embodiment 1:

[0046] like Figures 1 to 7 FIG. 1 is a first embodiment of the present invention.

[0047] The side suction range hood of this embodiment includes a housing 1, a smoke baffle 2, a driving mechanism 3 and a movable rod 4. The housing 1 has a chamber 10 inside. The front panel of the housing 1 gradually tilts backward from top to bottom, and the upper area of ​​the front panel has an air inlet 101, then the surface where the air inlet 101 is located gradually tilts backward from top to bottom, and the chamber 10 is connected to the air inlet 101. In addition, an inner panel 12 arranged side by side with the surface where the air inlet 101 is located is provided in the chamber 10, and a filter 121 is installed on the inner panel 12 at a position corresponding to the air inlet 101.

[0048] like Figure 1 , Figure 2 and Figure 4 As shown, the smoke baffle 2 is disposed at a position of the housing 1 corresponding to the air inlet 101, and is arranged to be able to rotate forward relative to the housing 1 to open the air inlet 101 or rotate backward to close the air inlet 101. When the air inlet 101 is in a closed state, the top edge of the smoke baffle 2 is located below the top surface of the housing 1 or is flush with the top surface of the housing 1. In this embodiment, Figure 1 and Figure 2 As shown, the top edge of the smoke baffle 2 is flush with the top surface of the casing 1 .

[0049] A vertically arranged mounting plate 11 is provided in the above-mentioned chamber 10, and the mounting plate 11 is arranged side by side with the left and right side wall panels of the casing 1, and the top of the mounting plate 11 is connected to the top wall of the chamber 10. The above-mentioned driving mechanism 3 is partially located in the chamber 10, and is located behind the smoke baffle 2. The power output end of the driving mechanism 3 is rotatably connected to the corresponding position on the back side of the smoke baffle 2, and the rotation center is A. Specifically, the driving mechanism 3 includes a connecting rod 31, a transmission member for driving the connecting rod 31 to move forward and backward, and a driver for driving the transmission member to rotate. The aforementioned connecting rod 31 and the transmission member constitute a transmission mechanism. The driver in this embodiment is a dual-output shaft motor 35 installed on the mounting plate 11, and the output shaft of the driver extends in the left and right directions. As Figure 3 and Figure 7 As shown, there are two transmission mechanisms in this embodiment, which are respectively arranged on the left and right sides of the smoke baffle 2, and each transmission mechanism corresponds to a movable rod 4 and a mounting plate 11. The power input end of each transmission mechanism is relatively fixedly connected to the corresponding output shaft of the dual output shaft motor 35. The two transmission mechanisms have the same structural form, and the transmission mechanism on the left side is taken as an example for description below.

[0050] like Figure 6As shown, the left and right sides of the back of the smoke baffle 2 are provided with an upper mounting seat 21 and a lower mounting seat 22 arranged from top to bottom. Specifically, the upper mounting seat 21 and the lower mounting seat 22 on the same side are formed on the bracket 20. In this embodiment, the output shaft of the driver is located above the connecting rod 31. The transmission member is an arc-shaped arm 32 with an opening facing forward. The arc-shaped arm 32 and the connecting rod 31 are arranged in a spaced manner along the left and right directions, and the arc-shaped arm 32 is located between the movable rod 4 and the connecting rod 31 on the corresponding side, and the movable rod 4 is located between the arc-shaped arm 32 and the mounting plate 11. The connecting rod 31 is arranged along the front-back direction. The upper end of the arc-shaped arm 32 is installed on the corresponding output shaft of the driver, and the rotation center of the rotation of the driver is C, that is, the rotation axis of the arc-shaped arm 32 is the axis of the output shaft of the driver. The lower end of the arc-shaped arm 32 is rotatably connected to the rear end of the connecting rod 31. The front end of the connecting rod 31 is rotatably connected to the lower mounting seat 22 on the corresponding side, and the rotation center of the rotation is A. Under the drive of the driver, the lower end of the arc-shaped arm 32 can swing forward and backward to drive the connecting rod 31 to move forward and backward and then drive the smoke baffle 2 to rotate forward and backward. In addition, the inner panel 12 is provided with a through slot 122 for the movable rod 4 and the connecting rod 31 to pass through.

[0051] like Figures 2 to 6 As shown, the movable rod 4 is located behind the smoke baffle 2, and the movable rod 4 gradually tilts backward from top to bottom. The above-mentioned connecting line AC intersects the movable rod 4, and the lower end of the movable rod 4 is rotatably connected to the mounting plate 11 on the corresponding side through the mounting shaft 112 extending left and right, and the upper end of the movable rod 4 is rotatably connected to the upper mounting seat 21 on the corresponding side through the connecting shaft 113 extending left and right, and the rotation center of the rotation connection with the upper mounting seat 21 is B. Figure 6 As shown, the rotation center A is located below the rotation center B. The upper end of the movable rod 4 is rotatably connected to the upper mounting seat 21 on the back of the smoke damper 2, and the lower end of the movable rod 4 is rotatably connected to the mounting plate 11, that is, the smoke damper 2 can rotate around the axis of the mounting shaft 112 along with the movable rod 4, that is, the smoke damper 2 can move up and down, so that when the driving mechanism drives the smoke damper 2 to rotate forward to open the air inlet 101, since the upper mounting seat 21 of the smoke damper 2 is rotatably connected to the upper end of the movable rod 4, the smoke damper 2 can rotate downward at this time, and the smoke damper 2 can move downward to a state where its top edge is maintained below the top surface of the casing 1 or is flush with the top surface of the casing 1.

[0052] like Figure 6 As shown, the mounting plate 11 is provided with a limit portion 111 capable of limiting the upper end of the movable rod 4 from rotating downward. Specifically, the limit portion 111 is formed on the rear edge of the mounting plate 11 and protrudes toward the movable rod 4. Figure 6As shown, the first portion 40 of the movable rod 4 located below the mounting shaft 112 is located below the limiting portion 111, and when the air inlet 101 is in the open state, the first portion 40 abuts against the bottom edge of the limiting portion 111, thus maintaining the descending height of the smoke shield 2. When the air inlet 101 is in the open state, the smoke shield 2 has a first position and a second position, and when the smoke shield 2 is in the first position, the lower end of the smoke shield 2 swings forward to reach the second position.

[0053] In order to prevent the smoke shield 2 from shaking when the smoke shield 2 is in the second position, the smoke shield will not shake due to the influence of the smoke airflow when the range hood is working. The arc-shaped arm 32 is provided with a convex portion 321 extending toward the movable rod 4, and the convex portion 321 is located on the movable rod 4. When the smoke shield 2 is in the second position, the position of the movable rod 4 located on the mounting shaft 112 abuts against the convex portion 321 of the arc-shaped arm 32.

[0054] In order to limit the backward rotation of the arc arm 32 when the air inlet is in the closed state and make the smoke shield close the air inlet more reliably, an extension plate 41 is extended backward near the lower part of the rear side of the movable rod 4. The extension plate 41 is located behind the protrusion 321, and the extension plate 41 is provided with an extension portion 411 extending toward the arc arm 32. When the air inlet 101 is in the closed state, the front side of the extension portion 411 is against the position of the arc arm 32 behind the protrusion 321.

[0055] The working process of the above-mentioned smoke baffle is as follows:

[0056] When the air inlet needs to be opened, the driver works, driving the arc arm 32 to swing forward and then driving the connecting rod 31 to move forward. At this time, the smoke baffle 2 rotates outward. Since the upper end of the movable rod 4 is rotatably connected to the upper mounting seat of the smoke baffle 2, and the lower end of the movable rod 4 is rotatably connected to the mounting plate 11 of the casing 1, the movable rod 4 slowly falls down under the gravity of the smoke baffle 2. Since at this time, the arc arm 32 is still against the extension portion 411 of the movable rod 4, the upper end of the movable rod 4 slowly falls down, and the first part 40 of the movable rod 4 abuts against the limiting portion 111 on the mounting plate 11 and stops moving. At this time, the arc arm 32 continues to push the connecting rod 31 to make the smoke baffle 2 continue to rotate forward. After reaching the second position, the air inlet 101 is in a fully open state, and the convex portion 321 on the arc arm 32 presses the movable rod 4, thereby fixing the movable rod 4.

[0057] When the air inlet 101 needs to be closed, the arc arm 32 drives the connecting rod 31 to pull the smoke baffle 2 to rotate backward. Since the upper end of the movable rod 4 is rotationally connected to the upper mounting seat of the smoke baffle 2, and the lower end of the movable rod 4 is rotationally connected to the mounting plate 11 of the casing 1, the upper end of the movable rod 4 can slowly rotate backward (i.e., rotate counterclockwise) at this time. When it is close to the closed state, the arc arm 32 will hit the extension part 411 on the movable rod 4, thereby completely tightening the smoke baffle 2 to close.

[0058] Embodiment 2:

[0059] like Figures 8 to 14 The second embodiment of the present invention is shown.

[0060] The difference between this embodiment and the above-mentioned embodiment 1 is that the transmission member and the driver have different structural forms. Specifically, the transmission member is a polygonal rotating plate 34.

[0061] The mounting shaft 112 extending in the left-right direction is mounted on the left and right mounting plates 11. The transmission member in each transmission mechanism is mounted on the mounting shaft 112, and the power output end of the driving assembly is drivingly connected to the power input end of the transmission member to drive the transmission member to rotate around the axis of the mounting shaft 112. The rotation center of the rotation connection between the transmission member and the mounting plate 11 is E.

[0062] like Fig. 9 and Fig.10 As shown, the driving assembly is an electric push rod mechanism 33 located in the chamber 10, and the electric push rod mechanism 33 includes a push rod housing 331 and a push rod 332 that performs linear reciprocating motion relative to the push rod housing 331. The free end of the push rod 332 is rotatably connected to the transmission member, and the aforementioned rotating plate 34 is located between the push rod and the movable rod 4 along the left and right directions. The rotation center of the rotation connection between the push rod 332 and the rotating plate 34 is D, and one end of the push rod housing 331 away from the push rod 332 is rotatably connected to the housing 1. The connecting rod 31 is located behind the smoke baffle 2, and the first end of the connecting rod 31 is rotatably connected to the lower mounting seat 22 of the smoke baffle 2, then the first end of the connecting rod 31 is located below the upper end of the movable rod 4, and the second end of the connecting rod 31 is rotatably connected to the rotating plate 34, and the rotation center of the rotation connection is F, and the rotation centers D, E and F are the three vertices of the triangle, and are respectively located at the corresponding corners of the rotating plate 34. In this way, under the drive of the electric push rod mechanism 33, the connecting rod 31 is driven to move forward and backward through the transmission of the transmission member to rotate the smoke shield 2 forward and backward. The rotation center of the upper end of the movable rod 4 and the upper mounting seat 21 is B, and the rotation center of the connecting rod 31 and the lower mounting seat 22 is A.

[0063] The movable rod 4 and the rotating plate 34 are arranged in sequence along the left-right direction. In order to prevent the smoke shield 2 from shaking when the smoke shield 2 is in the second position, a first side edge 342 of the rotating plate 34 adjacent to the rotation center D and F is provided with a protrusion 341 extending toward the movable rod 4. The protrusion 341 is located on the movable rod 4. When the smoke shield 2 is in the second position, the rotating plate 34 rotates until its protrusion 341 is against the position of the movable rod 4 located on the mounting shaft 112.

[0064] like Figure 8 As shown, the movable rod 4 has no extension plate, and an extension portion 411 is formed on the bottom edge of the movable rod 4 to limit the rotation of the rotating plate 34 and then limit the backward movement of the connecting rod 31. The extension portion 411 extends toward the rotating plate 34. When the air inlet 101 is in a closed state, the extension portion 411 is located under the rotating plate 34 and abuts against the bottom edge 343 of the rotating plate 34 adjacent to the rotation center D and F.

[0065] The working process of the smoke shield of this embodiment is as follows:

[0066] When the air inlet 101 needs to be opened, the electric push rod mechanism 33 works to drive the rotating plate 34 to rotate. Since the upper end of the movable rod 4 is rotationally connected to the upper mounting seat of the smoke baffle 2, and the lower end of the movable rod 4 is rotationally connected to the mounting plate 11 of the casing 1, the movable rod 4 slowly falls down under the gravity of the smoke baffle 2 (since the rotating plate 34 is still pressing the extension portion 411 of the movable rod 4 at this time, the upper end of the movable rod 4 slowly falls down), and the first part 40 of the movable rod 4 abuts against the limiting portion 111 on the mounting plate 11 and stops moving. At this time, the rotating plate 34 continues to push the connecting rod 31 to make the smoke baffle 2 continue to rotate forward. After reaching the second position, the air inlet 101 is in a fully open state; at this time, the protrusion 341 on the rotating plate 34 will press the movable rod 4, thereby fixing the movable rod 4.

[0067] When the air inlet 101 needs to be closed, the rotating plate 34 drives the connecting rod 31 to pull the smoke baffle 2 to rotate backward. Since the upper end of the movable rod 4 is rotationally connected to the upper mounting seat of the smoke baffle 2, and the lower end of the movable rod 4 is rotationally connected to the mounting plate 11 of the casing 1, the upper end of the movable rod 4 can slowly move backward. When it is close to the closed state, the rotating plate 34 will press on the extension part 411 on the movable rod 4, thereby completely tightening the smoke baffle 2 to close.

Claims

1. A side-suction range hood, comprising: The housing (1) has an air inlet (101) in the upper area of ​​the front side thereof; A smoke baffle (2) is arranged at a position of the casing (1) corresponding to the air inlet (101), and is arranged to be able to rotate forward relative to the casing (1) to open the air inlet (101) or rotate backward to close the air inlet (101); when the air inlet (101) is in a closed state, the top edge of the smoke baffle (2) is located below the top surface of the casing (1) or is flush with the top surface of the casing (1); It is characterized in that Also included are: A driving mechanism (3), whose power output end is rotatably connected to the back of the smoke baffle (2) and whose rotation center is A, and is used to drive the smoke baffle (2) to rotate forward and backward; and A movable rod (4) is located behind the smoke baffle (2), and is gradually tilted backward from top to bottom. Its lower end is rotatably connected to the housing (1), and its upper end is rotatably connected to the back of the smoke baffle (2) and is located above the rotation center A. The extension direction of the rotation axis at the upper and lower ends of the movable rod (4) is extended in the left-right direction; The driving mechanism (3) is located behind the smoke baffle (2) and comprises a connecting rod (31), a transmission member for driving the connecting rod (31) to move forward and backward, and a driver for driving the transmission member to rotate. The rotation axis of the transmission member extends along the left-right direction. The connecting rod (31) is arranged along the front-back direction. The front end of the connecting rod (31) is rotationally connected to the smoke baffle (2) with the rotation center being A. The rear end of the connecting rod (31) is rotationally connected to the corresponding position of the transmission member.

2. The side-suction range hood according to claim 1, characterized in that: When the air inlet (101) is in an open state, the smoke baffle (2) has a first position and a second position. When the smoke baffle (2) is in the first position, the lower end of the smoke baffle (2) swings forward to reach the second position.

3. The side-suction range hood according to claim 2, characterized in that: It also includes a limiting portion (111) capable of limiting the upper end of the movable rod (4) from rotating downward; when the air inlet (101) is in an open state, the limiting portion (111) abuts against a corresponding position of the movable rod (4).

4. The side-suction range hood according to claim 3, characterized in that: The lower end of the movable rod (4) is rotatably connected to the casing (1) via a mounting shaft (112) extending left and right, and the movable rod (4) and the transmission member are arranged in sequence along the left and right directions. The transmission member is provided with a convex portion (321) extending in the direction of the movable rod (4), and the convex portion (321) is located on the movable rod (4). When the smoke baffle (2) is in the second position, the transmission member rotates to the position where its convex portion (321) abuts against the position of the movable rod (4) located on the mounting shaft (112).

5. The side-suction range hood according to claim 4, characterized in that: The casing (1) is provided with a mounting plate (11) arranged vertically and along the front-to-back direction; the movable rod (4) is located between the transmission member and the mounting plate (11); the mounting shaft (112) is mounted on the mounting plate (11); the limiting portion (111) is formed on the mounting plate (11) and protrudes toward the movable rod (4); a first portion (40) of the movable rod (4) located below the mounting shaft (112) is located below the limiting portion (111); and when the air inlet (101) is in an open state, the first portion abuts against the limiting portion (111).

6. The side-suction range hood according to claim 5, characterized in that: The casing (1) has a chamber (10) inside that is connected to the air inlet (101); the mounting plate (11) is located in the chamber (10) and is arranged side by side with the left and right side wall panels of the casing (1); the top of the mounting plate (11) is connected to the top wall of the chamber (10); and the limiting portion (111) is formed on the rear edge of the mounting plate (11).

7. The side-suction range hood according to claim 4, characterized in that: The movable rod (4) is a straight rod.

8. The side-suction range hood according to claim 4, characterized in that: The center of the connection between the transmission member and the driver is C, and the connecting line AC intersects with the movable rod (4).

9. The side-suction range hood according to claim 8, characterized in that: The transmission member is an arc-shaped arm (32) with an opening facing forward, the output shaft of the driver extends in the left-right direction and is located above the connecting rod (31), the upper end of the arc-shaped arm (32) is mounted on the output shaft of the driver, and the lower end of the arc-shaped arm (32) is rotatably connected to the rear end of the connecting rod (31).

10. The side-suction range hood according to claim 9, characterized in that: An extension plate (41) is formed by extending rearwards from a position adjacent to the lower portion of the rear side of the movable rod (4), the extension plate (41) is located behind the convex portion (321), and the extension plate (41) is provided with an extension portion (411) extending in the direction of the arc-shaped arm (32), and when the air inlet (101) is in a closed state, the front side of the extension portion (411) abuts against a position of the arc-shaped arm (32) located behind the convex portion (321).

11. The side-suction range hood according to claim 1, characterized in that: The connecting rod (31) and the transmission member form a transmission mechanism. The transmission mechanism has two groups, which are respectively arranged on the left and right sides of the smoke baffle (2). Each group of transmission mechanisms corresponds to a movable rod. The driver is a dual-output shaft motor (35). The power input end of each group of transmission mechanisms is relatively fixedly connected to the corresponding output shaft of the dual-output shaft motor (35).

12. The side-suction range hood according to claim 1, characterized in that: The casing (1) has a chamber (10) inside, and an inner panel (12) is arranged in parallel with the surface where the air inlet (101) is located in the chamber (10), and a filter (121) is installed on the inner panel (12) at a position corresponding to the air inlet (101), and the inner panel (12) is provided with a through groove (122) for at least the movable rod (4) to pass through.

13. The side-suction range hood according to any one of claims 1 to 12, characterized in that: The surface where the air inlet (101) is located gradually tilts backwards from top to bottom.

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