Air guide plate mechanism, oil fume treatment device and design method

Abstract

The present invention relates to the field of kitchen appliance technology, and in particular to an air guide plate mechanism, an oil fume treatment device, and a design method. The air guide plate mechanism and the oil fume treatment device include a first air guide plate, a second air guide plate, a connecting rod assembly, and a linear output mechanism. The smoke collecting chamber body, the first air guide plate, and the second air guide plate are rotatably connected in sequence. The connecting rod assembly includes an input connecting rod and an output connecting rod. The connecting rod assembly is fixedly connected to the smoke collecting chamber body and the first air guide plate, respectively. The output connecting rod is rotatably connected to the second air guide plate. The linear output mechanism includes an output mechanism body and an output end. The output mechanism body is rotatably connected to the smoke collecting chamber body, and the output end is rotatably connected to the input connecting rod. The first air guide plate and the second air guide plate can be prevented from shaking or vibrating when switching states, effectively improving the user experience of the oil fume treatment device. The design method can prevent the first air guide plate and the second air guide plate from shaking or vibrating when switching states.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an air guide plate mechanism, an oil fume treatment device and a design method. Background Art

[0002] The existing oil fume treatment device includes a smoke collecting chamber main body and an air guide plate mechanism, the air guide plate mechanism includes a first air guide plate, a second air guide plate, a connecting rod assembly and a driving mechanism, wherein the smoke collecting chamber main body is rotatably connected to the first air guide plate, the first air guide plate and the second air guide plate are only connected to each other through the connecting rod assembly, and the driving mechanism is respectively connected to the smoke collecting chamber main body and the connecting rod assembly. When the driving mechanism is working, the connecting rod assembly is deformed to cause the first air guide plate to rotate relative to the smoke collecting chamber main body, and at the same time, causes the second air guide plate to move relative to the first air guide plate, thereby realizing the synchronous opening or synchronous closing of the first air guide plate and the second air guide plate.

[0003] However, the existing first air guide plate and the second air guide plate are only connected by a connecting rod assembly, and the connection between the first air guide plate and the second air guide plate is not stable. When the driving mechanism is working, the second air guide plate will shake or vibrate to a large extent, affecting the user experience of the oil fume treatment device. In addition, the first air guide plate and the smoke collecting chamber body are only connected by a rotating connection structure, and the connection between the first air guide plate and the smoke collecting chamber body is also unstable. When the driving mechanism is working, the first air guide plate will also shake or vibrate to a large extent, affecting the user experience of the oil fume treatment device.

[0004] Therefore, it is urgent to design a new air guide plate mechanism, an oil fume treatment device and a design method to solve the problem that the first air guide plate and the second air guide plate are prone to shaking or vibrating during operation. Summary of the invention

[0005] According to the first aspect of the present invention, an air guide plate mechanism is proposed to prevent the first air guide plate and the second air guide plate from shaking or vibrating when switching states, thereby reducing the noise of the oil fume treatment device during use and effectively improving the user experience of the oil fume treatment device.

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

[0007] An air guide plate mechanism can be matched with a smoke collecting chamber body of an oil fume treatment device, and the air guide plate mechanism comprises:

[0008] A first air guide plate and a second air guide plate, wherein the smoke collecting chamber body, the first air guide plate and the second air guide plate are rotatably connected in sequence;

[0009] a connecting rod assembly, comprising an input connecting rod and an output connecting rod, wherein the input connecting rod is fixedly connected to the smoke collecting chamber body and the first air guide plate respectively, and the output connecting rod is rotatably connected to the second air guide plate; and

[0010] A linear output mechanism comprises an output mechanism body and an output end capable of linear motion relative thereto, wherein the output mechanism body is rotatably connected to the smoke collecting chamber body, and the output end is rotatably connected to the input connecting rod, and when the output end moves relative to the output mechanism body, the connecting rod assembly can flip the first air guide plate relative to the smoke collecting chamber body, and simultaneously flip the second air guide plate relative to the first air guide plate.

[0011] As an optional scheme, the connecting rod assembly also includes a first connecting rod, a second connecting rod and a third connecting rod, one end of the input connecting rod can rotate relative to the smoke collecting chamber main body, and the other end of the input connecting rod is rotatably connected to the output end, one end of the first connecting rod is rotatably connected to the input connecting rod, and the other end of the first connecting rod can rotate relative to the first air guide plate, the first air guide plate, the second connecting rod, the output connecting rod and the second air guide plate are rotatably connected in sequence, one end of the third connecting rod is rotatably connected to the input connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod.

[0012] As an optional solution, the connecting rod assembly further includes:

[0013] a first mounting seat, the first mounting seat being arranged on the smoke collecting chamber body, and the end of the input connecting rod away from the output end being rotatably connected to the first mounting seat;

[0014] A second mounting seat, wherein the second mounting seat is arranged on the first air guide plate, the other end of the first connecting rod is rotatably connected to the second mounting seat, and one end of the second connecting rod away from the output connecting rod is rotatably connected to the second mounting seat.

[0015] As an optional solution, one of the first air guide plate and the second air guide plate includes a pivot shaft extending along the width direction of the first air guide plate, and the pivot shaft is rotatably connected to the other one.

[0016] As an optional solution, the connecting rod assemblies are provided in at least two groups, and the at least two groups of the connecting rod assemblies are arranged at intervals along the width direction of the air guide plate mechanism, and two adjacent connecting rod assemblies are connected by a connecting member.

[0017] As an optional solution, when the air guide plate mechanism is in an open state, the first air guide plate is flipped open at a first flip angle α relative to the smoke collecting chamber body, and the second air guide plate is flipped open at a second flip angle β relative to the smoke collecting chamber body, and the second flip angle β is greater than the first flip angle α.

[0018] According to the second aspect of the present invention, a fume treatment device is proposed to prevent the first air guide plate and the second air guide plate from shaking or vibrating when switching states, thereby reducing the noise of the fume treatment device during use and effectively improving the user experience of the fume treatment device.

[0019] To achieve this object, the present invention adopts the following technical solutions:

[0020] A fume treatment device comprises a fume collecting chamber body, and the fume treatment device also comprises the air guide plate mechanism as described above.

[0021] According to the third aspect of the present invention, a design method for an air guide plate mechanism is proposed to prevent the first air guide plate and the second air guide plate from shaking or vibrating when switching states, thereby reducing the noise of the oil fume treatment device during use and effectively improving the user experience of the oil fume treatment device.

[0022] To achieve this object, the present invention adopts the following technical solutions:

[0023] A design method for an air deflector mechanism is used for designing the air deflector mechanism as described above, the design method comprising:

[0024] S1: Preset initial parameters, the initial parameters include the initial position of the first air guide plate, the first flip angle α of the first air guide plate flipped open relative to the smoke collecting chamber body, the first rotation connection position P1 of the first air guide plate and the smoke collecting chamber body, the second rotation connection position P2 of the first air guide plate and the second air guide plate, the third rotation connection position P3 of the second air guide plate and the output connecting rod, the second flip angle β of the second air guide plate flipped open relative to the first air guide plate, the position of the first mounting seat on the smoke collecting chamber body, the position of the second mounting seat on the second air guide plate, the fourth rotation connection position P4 of the first mounting seat and the input connecting rod, the fifth rotation connection position P5 and the sixth rotation connection position P6 on the second mounting seat, the seventh rotation connection position P7 of the linear output mechanism and the smoke collecting chamber body, and the first length L1 from the eighth rotation connection position P8 of the output end and the input connecting rod to the fourth rotation connection position P4;

[0025] S2: Determine, based on the initial parameters, a ninth rotational connection position P9 between the input connecting rod and the first connecting rod, a tenth rotational connection position P 10 , the eleventh rotation connection position P of the third connecting rod and the second connecting rod 11 , the twelfth rotation connection position P of the second connecting rod and the output connecting rod 12 .

[0026] As an optional solution, the step S2 includes:

[0027] S21: draw a first auxiliary circle C1 with the fourth rotational connection position P4 as the first circle center O1 and the first length L1 as the radius;

[0028] S22: With the seventh rotational connection position P7 as the second circle center O2, with all possible minimum positions of the eighth rotational connection position P8 as the radius, a second auxiliary circle C2 is drawn, with all possible maximum positions of the eighth rotational connection position P8 as the radius, a third auxiliary circle C3 is drawn, and the intersection of the second auxiliary circle C2 and the first auxiliary circle C1 is the eighth contraction rotational connection position P8 when the output connecting rod is contracted. 8a The intersection of the third auxiliary circle C3 and the first auxiliary circle C1 is the eighth extension rotation connection position P when the output connecting rod is extended. 8b ;

[0029] S23: taking the first rotational connection position P1 as the rotation center, rotating the fifth rotational connection position P5' before rotation by the flip angle α to obtain the fifth rotational connection position P5' after rotation;

[0030] S24: Rotate the eighth elongated connection position P before rotation 8b ' and the fifth rotation connection position P5' before rotation rotate together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P after rotation 8b '' and the eighth contraction rotation connection position P before rotation 8a ' Overlap, thereby obtaining the overlapped fifth rotational connection position P5''', connect the overlapped fifth rotational connection position P5''' with the rotated fifth rotational connection position P5'' to form a first connecting line N1, make a first perpendicular bisector M1 of the first connecting line N1, the intersection point of the first perpendicular bisector M1 and the input connecting rod is the ninth rotational connection position P9, connect the fifth rotational connection position P5' before rotation with the ninth rotational connection position P9 to obtain the first connecting rod.

[0031] As an optional solution, the step S2 further includes:

[0032] S25: selecting the second length L2 of the second connecting rod and the third length L3 of the output connecting rod according to design requirements, and making a fourth auxiliary circle C4 with the sixth rotational connection position P6 as the third circle center O3 and the second length L2 as the radius;

[0033] S26: rotating the third rotational connection position P3' before rotation around the second rotational connection position P2 by the second flip angle β to obtain the third rotational connection position P3'' after rotation;

[0034] The third rotation connection position P3' before rotation is the fourth circle center O4, and the third length L3 is used as the radius to make a fifth auxiliary circle C5. The intersection of the fourth auxiliary circle C4 and the fifth auxiliary circle C5 is the twelfth rotation connection position P before rotation. 12 ';

[0035] The third rotation connection position P3′′ after rotation is taken as the fifth circle center O5, and the third length L3 is taken as the radius to form a sixth auxiliary circle C6. The intersection of the fourth auxiliary circle C4 and the sixth auxiliary circle C6 is the twelfth rotation connection position P after rotation. 12 ' ';

[0036] S27: The sixth rotational connection position P6' before rotation, the second rotational connection position P2' before rotation, and the twelfth rotational connection position P6' before rotation of S26 are 12 The first rotation connection position P1 is rotated by the first flip angle α to obtain the sixth rotation connection position P6′′, the second rotation connection position P2′′, and the twelfth rotation connection position P6′′ after rotation. 12 ' ';

[0037] S28: The eighth elongated rotation connection position P before rotation 8b ', the sixth rotational connection position P6' before rotation, the second rotational connection position P2' before rotation, the twelfth rotational connection position P before rotation of S26 12 ' rotates together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P 8b '' and the eighth contraction rotation connection position P before rotation 8a ' overlap, thereby obtaining the overlapped sixth rotation connection position P6''' and the overlapped twelfth rotation connection position P 12 ' ' ';

[0038] S29: Select the eleventh rotation connection position P after rotation according to design requirements 11 '' and the eleventh rotation connection position P after overlap 11'', rotate the eleventh rotation connection position P 11 '' and the eleventh rotation connection position P after overlap 11 ''' is connected to form a second connecting line N2, and a second perpendicular midline M2 of the second connecting line N2 is formed. The intersection point of the second perpendicular midline M2 and the input connecting rod is the tenth rotation connection position P 10 .

[0039] Beneficial effects of the present invention:

[0040] The air guide plate mechanism provided by the present invention includes a first air guide plate, a second air guide plate, a connecting rod assembly and a linear output mechanism. The smoke collecting chamber main body, the first air guide plate and the second air guide plate are rotatably connected in sequence. The connecting rod assembly includes an input connecting rod and an output connecting rod. The connecting rod assembly is fixedly connected to the smoke collecting chamber main body and the first air guide plate respectively. The output connecting rod is rotatably connected to the second air guide plate. The linear output mechanism includes an output mechanism main body and an output end that can make linear motion relative to the output mechanism main body. The output mechanism main body is rotatably connected to the smoke collecting chamber main body, and the output end is rotatably connected to the input connecting rod. When the output end moves relative to the output mechanism main body, the connecting rod assembly can flip the first air guide plate relative to the smoke collecting chamber main body, and at the same time flip the second air guide plate relative to the first air guide plate.

[0041] While the linear output mechanism drives the first air guide plate and the second air guide plate to open and close synchronously, the rapid opening or closing of the first air guide plate and the second air guide plate can be ensured. Since the first air guide plate and the second air guide plate are not only connected by the connecting rod assembly, but also directly connected to each other in rotation, the connection between the first air guide plate and the second air guide plate is relatively stable. During the operation of the linear output mechanism, the second air guide plate will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device during use and effectively improve the user experience of the oil fume treatment device. In addition, the connecting rod assembly is fixedly connected to the smoke collecting chamber body and the first air guide plate respectively, and the smoke collecting chamber body can provide a relatively stable support effect for the first air guide plate through the connecting rod assembly. Compared with the first air guide plate and the smoke collecting chamber body connected only by a hinge in the prior art, the connection between the first air guide plate and the smoke collecting chamber body of the disclosed embodiment is stable. During the operation of the linear output mechanism, the first air guide plate will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device during use and effectively improve the user experience of the oil fume treatment device.

[0042] The oil fume treatment device provided by the present invention includes the above-mentioned air guide plate mechanism, which prevents the first air guide plate and the second air guide plate from shaking or vibrating when switching states, can reduce the noise of the oil fume treatment device during use, and effectively improve the user experience of the oil fume treatment device.

[0043] The design method of the air guide plate mechanism provided by the present invention is used to design the air guide plate mechanism mentioned above, which can avoid shaking or vibration of the first air guide plate and the second air guide plate when switching states, can reduce the noise of the oil fume treatment device during use, and effectively improve the user experience of the oil fume treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a structural schematic diagram of the oil fume treatment device provided in the first embodiment of the present invention in an open state;

[0045] Figure 2 is a structural schematic diagram of the oil fume treatment device provided in the first embodiment of the present invention in a closed state;

[0046] Figure 3 is a schematic structural diagram of a connecting rod assembly provided in Embodiment 1 of the present invention;

[0047] Figure 4 is a first schematic diagram of a design method provided by Embodiment 2 of the present invention;

[0048] Figure 5 is a second schematic diagram of the design method provided by the second embodiment of the present invention;

[0049] Figure 6 is a third schematic diagram of the design method provided in the second embodiment of the present invention;

[0050] Figure 7 is a fourth schematic diagram of the design method provided in the second embodiment of the present invention;

[0051] Figure 8 is a fifth schematic diagram of the design method provided in the second embodiment of the present invention;

[0052] Fig. 9 This is the sixth schematic diagram of the design method provided in the second embodiment of the present invention.

[0053] In the figure:

[0054] 100. Fume treatment device;

[0055] 10. air deflector mechanism; 11. first air deflector; 12. second air deflector; 121. second air deflector body; 122. pivot shaft; 13. connecting rod assembly; 131. input connecting rod; 132. output connecting rod; 133. first mounting seat; 134. first connecting rod; 135. second connecting rod; 136. second mounting seat; 137. third connecting rod; 14. linear output mechanism; 141. output mechanism body; 142. output end;

[0056] 20. Smoke collecting cavity body; 21. Smoke collecting space;

[0057] 30. Smoke-collecting space. DETAILED DESCRIPTION

[0058] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and implementation methods. 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 are shown in the accompanying drawings, rather than all of them.

[0059] 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.

[0060] In the present invention, 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.

[0061] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "left", "right", etc., and the like, are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0062] Embodiment 1

[0063] like Figure 1As shown, the embodiment of the present disclosure discloses an oil fume treatment device 100, which includes a smoke collecting chamber body 20 and an air guide plate mechanism 10. The smoke collecting chamber body 20 has an opening, and the air guide plate mechanism 10 can switch between a first position for blocking the opening and a second position for opening the opening. When the air guide plate mechanism 10 is in the first position, the air guide plate mechanism 10 can achieve a good blocking effect on the opening, and can prevent the oil fume smell in the smoke collecting chamber body 20 from being transmitted to the room; when the air guide plate mechanism 10 is in the second position, the oil fume outside the oil fume treatment device 100 can enter the smoke collecting chamber body 20 through the opening and be discharged to the outside. When the air guide plate mechanism 10 is in the open state, the air inlet area of ​​the smoke collecting chamber body 20 can be adjusted by the different degrees of flipping of the air guide plate mechanism 10 relative to the smoke collecting chamber body 20, so as to achieve a good match between the oil fume treatment device 100 and oil fume of different oil fume concentrations, and the oil fume treatment device 100 can achieve a good absorption effect for oil fume of different oil fume concentrations.

[0064] The existing air guide plate mechanism includes a first air guide plate, a second air guide plate, a connecting rod assembly and a driving mechanism, wherein the smoke collecting chamber main body is rotatably connected to the first air guide plate, the first air guide plate and the second air guide plate are connected only by the connecting rod assembly, and the driving mechanism is respectively connected to the smoke collecting chamber main body and the connecting rod assembly. When the driving mechanism is working, the connecting rod assembly is deformed to make the first air guide plate rotate relative to the smoke collecting chamber main body, and at the same time make the second air guide plate move relative to the first air guide plate, thereby realizing the synchronous opening or synchronous closing of the first air guide plate and the second air guide plate.

[0065] However, the existing first air guide plate and the second air guide plate are only connected by a connecting rod assembly, and the connection between the first air guide plate and the second air guide plate is not stable. When the driving mechanism is working, the second air guide plate will shake or vibrate to a large extent, affecting the user experience of the oil fume treatment device. In addition, the first air guide plate and the smoke collecting chamber body are only connected by a rotating connection structure, and the connection between the first air guide plate and the smoke collecting chamber body is also unstable. When the driving mechanism is working, the first air guide plate will also shake or vibrate to a large extent, affecting the user experience of the oil fume treatment device.

[0066] To solve the above problems, Figure 1 to Figure 3As shown, the air guide plate mechanism 10 includes a first air guide plate 11, a second air guide plate 12, a connecting rod assembly 13 and a linear output mechanism 14. The smoke collecting chamber body 20, the first air guide plate 11 and the second air guide plate 12 are rotatably connected in sequence. The connecting rod assembly 13 includes an input connecting rod 131 and an output connecting rod 132. The connecting rod assembly 13 is fixedly connected to the smoke collecting chamber body 20 and the first air guide plate 11 respectively, and the output connecting rod 132 is rotatably connected to the second air guide plate 12. The linear output mechanism 14 includes an output mechanism body 141 and an output end 142 that can make a linear motion relative to the output mechanism body 141. The output mechanism body 141 is rotatably connected to the smoke collecting chamber body 20, and the output end 142 is rotatably connected to the input connecting rod 131. When the output end 142 moves relative to the output mechanism body 141, the connecting rod assembly 13 can flip the first air guide plate 11 relative to the smoke collecting chamber body 20, and at the same time flip the second air guide plate 12 relative to the first air guide plate 11.

[0067] While the linear output mechanism 14 drives the first air guide plate 11 and the second air guide plate 12 to open and close synchronously, the rapid opening or closing of the first air guide plate 11 and the second air guide plate 12 can be ensured. Since the first air guide plate 11 and the second air guide plate 12 are not only connected by the connecting rod assembly 13, but also directly connected in rotation, the connection between the first air guide plate 11 and the second air guide plate 12 is relatively stable. When the linear output mechanism 14 is working, the second air guide plate 12 will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device 100 during use, and effectively improve the user experience of the oil fume treatment device 100. In addition, the connecting rod assembly 13 is fixedly connected to the smoke collecting chamber body 20 and the first air guide plate 11 respectively. The smoke collecting chamber body 20 can provide a relatively stable support effect on the first air guide plate 11 through the connecting rod assembly 13. Compared with the first air guide plate and the smoke collecting chamber body which are only connected by a hinge in the prior art, the connection between the first air guide plate 11 and the smoke collecting chamber body 20 in the disclosed embodiment is stable. When the linear output mechanism 14 is working, the first air guide plate 11 will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device 100 during use and effectively improve the user experience of the oil fume treatment device 100.

[0068] In an optional embodiment, if Figure 1 to Figure 3As shown, the connecting rod assembly 13 also includes a first connecting rod 134, a second connecting rod 135 and a third connecting rod 137, one end of the input connecting rod 131 can rotate relative to the smoke collecting chamber body 20, and the other end of the input connecting rod 131 is rotatably connected to the output end 142, one end of the first connecting rod 134 is rotatably connected to the input connecting rod 131, and the other end of the first connecting rod 134 can rotate relative to the first air guide plate 11, the first air guide plate 11, the second connecting rod 135, the output connecting rod 132 and the second air guide plate 12 are rotatably connected in sequence, one end of the third connecting rod 137 is rotatably connected to the input connecting rod 131, and the other end of the third connecting rod 137 is rotatably connected to the second connecting rod 135. When the output end 142 is retracted toward the output mechanism body 141, the input link 131 can rotate relative to the smoke collecting chamber body 20, thereby driving the first link 134 and the third link 137 to move, the first link 134 pushes the first air guide plate 11 to rotate and open relative to the smoke collecting chamber body 20, and the movement of the third link 137 drives the second link 135 to move; since the second link 135 is rotatably connected to the first air guide plate 11, the second link 135 rotates around its rotation connection point with the first air guide plate 11, thereby driving the output link 132 to move, the output link 132 is rotatably connected to the second air guide plate 12, so that the second air guide plate 12 rotates, thereby realizing the simultaneous opening of the first air guide plate 11 and the second air guide plate 12. When the output end 142 extends from the output mechanism body 141, the above movement is reversed, thereby realizing the closing movement of the air guide plate mechanism 10, and realizing the simultaneous closing of the first air guide plate 11 and the second air guide plate 12.

[0069] In an optional embodiment, if Figure 1 to Figure 3 As shown, the connecting rod assembly 13 also includes a first mounting seat 133, which is arranged on the smoke collecting chamber body 20, and one end of the input connecting rod 131 away from the output end 142 is rotatably connected to the first mounting seat 133. It is only necessary to fix the first mounting seat 133 on the smoke collecting chamber body 20, and there is no need to set a relatively complex rotating connection structure between the input connecting rod 131 and the smoke collecting chamber body 20, which can achieve fast and simple installation of the connecting rod assembly 13 and the smoke collecting chamber body 20, and improve the assembly efficiency of the connecting rod assembly 13 and the smoke collecting chamber body 20. The first mounting seat 133 can achieve a stable support for the input connecting rod 131, thereby achieving a stable support for the first air guide plate 11 and the second air guide plate 12, thereby ensuring a good stability of the opening posture of the first air guide plate 11 and the second air guide plate 12.

[0070] In an optional embodiment, if Figure 1 to Figure 3As shown, the connecting rod assembly 13 also includes a second mounting seat 136, and the second mounting seat 136 is arranged on the first air guide plate 11. The other end of the first connecting rod 134 is rotatably connected to the second mounting seat 136, and the end of the second connecting rod 135 away from the output connecting rod 132 is rotatably connected to the second mounting seat 136. Since the first connecting rod 134 and the second connecting rod 135 are pre-installed with the second mounting seat 136 in advance, the operator only needs to install the second mounting seat 136 on the first air guide plate 11 to realize the rotation of the first connecting rod 134 and the second connecting rod 135 relative to the first air guide plate 11 respectively. There is no need to set a more complicated rotating connection structure between the first connecting rod 134 and the first air guide plate 11, and there is no need to set a more complicated rotating connection structure between the second connecting rod 135 and the first air guide plate 11, which can further improve the simple and quick installation of the connecting rod assembly 13 and the first air guide plate 11, and further improve the assembly efficiency of the connecting rod assembly 13 and the first air guide plate 11.

[0071] In addition, the second mounting seat 136 can achieve stable support for the first connecting rod 134 and the second connecting rod 135, thereby achieving stable support for the first air guide plate 11 and the second air guide plate 12, thereby ensuring good stability of the opening posture of the first air guide plate 11 and the second air guide plate 12.

[0072] In addition, since the forces of the first connecting rod 134 and the second connecting rod 135 are transmitted to the first air guide plate 11, the first air guide plate 11 may be deformed or damaged after long-term use. The second mounting seat 136 has good strength and hardness to achieve stable support for the first connecting rod 134 and the second connecting rod 135, which can avoid deformation or damage of the first air guide plate 11, increase the service life of the first air guide plate 11, and improve the first air guide plate 11's better gathering and guiding effect on oil smoke.

[0073] like Figure 1 to Figure 3As shown, the input connecting rod 131, the first connecting rod 134, the third connecting rod 137 and the second connecting rod 135 constitute a "first four-bar linkage", the first air guide plate 11, the second air guide plate 12, the output connecting rod 132 and the second connecting rod 135 constitute a "second four-bar linkage", the "first four-bar linkage" and the "second four-bar linkage" have a common connecting rod, namely the second connecting rod 135, the "double four-bar linkage" has a simple structure and a clever connection method. When one of the four-bar linkages moves, it can drive the other four-bar linkage to move, thereby realizing the folding and unfolding of the connecting rod assembly 13. When the connecting rod assembly 13 is folded, it has a smaller size in the up-down direction and the front-back direction at the same time, thereby ensuring that there is a larger effective smoke collecting space 21 in the smoke collecting chamber body 20, and realizing a better absorption effect of the oil fume treatment device 100 on the oil fume. In addition, since the connecting rod assembly 13 is small in size in the folded state, it can also ensure that the thickness of the smoke collecting chamber body 20 can be relatively thin, thereby realizing the design of the ultra-thin oil fume treatment device 100.

[0074] In an optional embodiment, if Figure 1 As shown, the second air guide plate 12 includes a second air guide plate body 121 and a pivot shaft 122 arranged thereon, the pivot shaft 122 extends along the width direction of the first air guide plate 11, and the pivot shaft 122 is rotatably connected to the first air guide plate 11. The setting of the pivot shaft 122 can ensure that the first air guide plate 11 and the second air guide plate 12 have a good connection effect at each position along the width direction of the first air guide plate 11, and ensure the stability of the connection between the first air guide plate 11 and the second air guide plate 12. When the linear output mechanism 14 is in operation, it further avoids the second air guide plate 12 from shaking or vibrating significantly, and can further reduce the noise of the oil fume treatment device 100 during use, and further improve the user experience of the oil fume treatment device 100.

[0075] In an optional embodiment, the first air guide plate 11 may also include a first air guide plate body and a pivot shaft 122 arranged thereon, the pivot shaft 122 extending in a square shape along the width of the first air guide plate 11, the pivot shaft 122 is rotatably connected to the second air guide plate 12, the pivot shaft 122 can also ensure a good connection effect between the first air guide plate 11 and the second air guide plate 12 at various positions along the width direction of the first air guide plate 11, ensure the stability of the connection between the first air guide plate 11 and the second air guide plate 12, and the linear output mechanism 14 can further prevent the second air guide plate 12 from shaking or vibrating significantly during operation, further reduce the noise of the oil fume treatment device 100 during use, and further improve the user experience of the oil fume treatment device 100.

[0076] In an optional embodiment, the connecting rod assembly 13 is provided in at least two groups, and the at least two groups of connecting rod assemblies 13 are arranged at intervals along the width direction of the air guide plate mechanism 10, and two adjacent connecting rod assemblies 13 are connected by a connecting member (not shown in the figure). The provision of at least two groups of connecting rod assemblies 13 can further improve the connection effect of the first air guide plate 11 and the second air guide plate 12 at various positions along the width direction of the first air guide plate 11, ensure the stability of the connection between the first air guide plate 11 and the second air guide plate 12, and further avoid the second air guide plate 12 from shaking or vibrating significantly during the operation of the linear output mechanism 14, further reduce the noise of the oil fume treatment device 100 during use, and further improve the user experience of the oil fume treatment device 100. Exemplarily, the connecting member can be a long rod, one end of the long rod is fixedly connected to one of the connecting rod assemblies 13, and the other end of the long rod is fixedly connected to the other connecting rod assembly 13.

[0077] In addition, at least two groups of connecting rod assemblies 13 can share a linear output mechanism 14, that is, a linear output mechanism 14 can synchronously drive at least two connecting rod assemblies 13 to move synchronously, thereby ensuring the synchronous movement of the first air guide plate 11 at various positions along its width direction and the synchronous movement of the second air guide plate 12 at various positions along its width direction, thereby avoiding the first air guide plate 11 and the second air guide plate 12 from vibrating or shaking during the opening or closing process, and reducing the noise during the operation of the oil fume treatment device 100. In addition, it can also avoid interference between the first air guide plate 11 and the second air guide plate 12 during the operation process, and when the first air guide plate 11 and the second air guide plate 12 are both in the closed state, it can also ensure the air guide plate mechanism 10 has a tight sealing effect on the opening. In addition, since at least two connecting rod assemblies 13 share a linear output mechanism 14, the oil fume treatment device 100 of this optional embodiment has relatively fewer parts, and the oil fume treatment device 100 has a simple structure, is easy to install and has low cost. In addition, since fewer driving devices are involved, the occupancy of the driving device on the internal smoke collecting space 21 of the smoke collecting chamber body 20 can be effectively reduced, ensuring that the smoke collecting chamber body 20 has a larger effective smoke collecting space 21, and ensuring that the oil fume treatment device 100 has a better absorption effect on oil fumes.

[0078] In an optional embodiment, if Figure 1 As shown, when the air guide plate mechanism 10 is in an open state, the first air guide plate 11 is flipped open at a first flip angle α relative to the smoke collecting chamber main body 20, and the second air guide plate 12 is flipped open at a second flip angle β relative to the smoke collecting chamber main body 20, the second flip angle β is greater than the first flip angle α, and a larger smoke gathering space 30 is formed between the second air guide plate 12 and the front side of the smoke collecting chamber main body 20. The larger smoke gathering space 30 can achieve a better gathering effect on the external smoke of the oil fume treatment device 100, thereby achieving a better absorption effect of the oil fume treatment device 100 on the oil fume.

[0079] In an optional embodiment, if Figure 1 As shown, the output connecting rod 132 is arc-shaped, and the output connecting rod 132 is bent toward the flipping and opening direction of the first air guide plate 11. When the output end 142 shrinks toward the output mechanism body 141, the arc-shaped setting of the output connecting rod 132 can ensure that the second air guide plate 12 flips outward to a greater extent than the first air guide plate 11, thereby ensuring that during the opening process of the air guide plate mechanism 10, the second flip angle β is always greater than the first flip angle α. In other words, no matter what state the air guide plate mechanism 10 is opened to, it can ensure that the fume treatment device 100 has a larger effective smoke collecting space 21.

[0080] Embodiment 2

[0081] The present disclosure discloses a design method of the air deflector mechanism 10 for designing the air deflector mechanism 10 of the first embodiment, such as Figures 4 to 9 As shown, the design method of the air deflector mechanism 10 includes:

[0082] S1: Preset initial parameters, the initial parameters including the initial position of the first air guide plate 11, the first flip angle α of the first air guide plate 11 flipped open relative to the smoke collecting chamber body 20, the first rotational connection position P1 of the first air guide plate 11 and the smoke collecting chamber body 20, the second rotational connection position P2 of the first air guide plate 11 and the second air guide plate 12, the third rotational connection position P3 of the second air guide plate 12 and the output connecting rod 132, the second flip angle β of the second air guide plate 12 flipped open relative to the smoke collecting chamber body 20, the position of the first mounting seat 133 on the smoke collecting chamber body 20, the position of the second mounting seat 136 on the second air guide plate 12, the fourth rotational connection position P4 of the first mounting seat 133 and the input connecting rod 131, the fifth rotational connection position P5 and the sixth rotational connection position P6 on the second mounting seat 136, the seventh rotational connection position P7 of the linear output mechanism 14 and the smoke collecting chamber body 20, and the first length L1 from the eighth rotational connection position P8 of the output end 142 and the input connecting rod 131 to the fourth rotational connection position P4;

[0083] S2: Determine the ninth rotational connection position P9 between the input connecting rod 131 and the first connecting rod 134 and the tenth rotational connection position P9 between the third connecting rod 137 and the input connecting rod 131 according to the initial parameters. 10 , the eleventh rotation connection position P of the third connecting rod 137 and the second connecting rod 135 11 , the twelfth rotation connection position P of the second connecting rod 135 and the output connecting rod 132 12 .

[0084] The air guide plate mechanism 10 designed by the above-mentioned design method can ensure that no interference or jamming occurs between the various parts of the air guide plate mechanism 10 and the smoke collecting chamber main body 20 when the linear output mechanism 14 drives the first air guide plate 11 and the second air guide plate 12 to open and close synchronously, thereby ensuring smooth switching of the air guide plate mechanism 10 between the open state and the closed state.

[0085] While the linear output mechanism 14 drives the first air guide plate 11 and the second air guide plate 12 to open and close synchronously, the rapid opening or closing of the first air guide plate 11 and the second air guide plate 12 can be ensured. Since the first air guide plate 11 and the second air guide plate 12 are not only connected by the connecting rod assembly 13, but also directly connected in rotation, the connection between the first air guide plate 11 and the second air guide plate 12 is relatively stable. When the linear output mechanism 14 is working, the second air guide plate 12 will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device 100 during use, and effectively improve the user experience of the oil fume treatment device 100.

[0086] In addition, the connecting rod assembly 13 is fixedly connected to the smoke collecting chamber body 20 and the first air guide plate 11 respectively. The smoke collecting chamber body 20 can provide a relatively stable support effect on the first air guide plate 11 through the connecting rod assembly 13. Compared with the first air guide plate and the smoke collecting chamber body which are only connected by a hinge in the prior art, the connection between the first air guide plate 11 and the smoke collecting chamber body 20 in the disclosed embodiment is stable. When the linear output mechanism 14 is working, the first air guide plate 11 will not shake or vibrate significantly, which can reduce the noise of the oil fume treatment device 100 during use and effectively improve the user experience of the oil fume treatment device 100.

[0087] In an optional embodiment, if Figure 1 , Figure 2 as well as Figures 4 to 6 As shown, the steps of S2 include:

[0088] like Figure 4 As shown, S21: taking the fourth rotation connection position P4 as the first circle center O1 and taking the first length L1 as the radius, draw a first auxiliary circle C1;

[0089] like Figure 4 As shown, S22: With the seventh rotational connection position P7 as the second circle center O2, with all possible minimum positions of the eighth rotational connection position P8 as the radius, a second auxiliary circle C2 is drawn, with all possible maximum positions of the eighth rotational connection position P8 as the radius, a third auxiliary circle C3 is drawn, and the intersection of the second auxiliary circle C2 and the first auxiliary circle C1 is the eighth contraction rotational connection position P8 when the output connecting rod 132 is contracted. 8aThe intersection of the third auxiliary circle C3 and the first auxiliary circle C1 is the eighth extension rotation connection position P when the output connecting rod 132 is extended. 8b ;

[0090] like Figure 5 As shown, S23: taking the first rotational connection position P1 as the rotation center, rotating the fifth rotational connection position P5' before rotation by a flip angle α to obtain the fifth rotational connection position P5' after rotation;

[0091] like Figure 6 As shown, S24: the eighth elongated rotation connection position P before rotation 8b ' and the fifth rotation connection position P5' before rotation rotate together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P after rotation 8b '' and the eighth contraction rotation connection position P before rotation 8a ' Overlap, thereby obtaining the overlapped fifth rotational connection position P5''', connect the overlapped fifth rotational connection position P5''' with the rotated fifth rotational connection position P5'' to form a first connecting line N1, make a first perpendicular bisector M1 of the first connecting line N1, the intersection point of the first perpendicular bisector M1 and the input connecting rod 131 is the ninth rotational connection position P9, connect the fifth rotational connection position P5' before rotation with the ninth rotational connection position P9 to obtain the first connecting rod 134. Since the length of the first connecting rod 134 remains unchanged during the state switching of the connecting rod assembly 13, the distance between the fifth rotating connection position P5'' and the ninth rotating connection position P9 after the overlap is the same as the distance between the fifth rotating connection position P5'' and the ninth rotating connection position P9 after the rotation. Therefore, after obtaining the fifth rotating connection position P5'' and the fifth rotating connection position P5'' after the overlap, the fifth rotating connection position P5'' and the fifth rotating connection position P5'' after the rotation are connected to form a first connecting line N1, and a first perpendicular midline M1 of the first connecting line N1 is made. The intersection point of the first perpendicular midline M1 and the input connecting rod 131 is the ninth rotating connection position P9. The fifth rotating connection position P5' before rotation is connected with the ninth rotating connection position P9 to obtain the first connecting rod 134, which can meet the above-mentioned requirements and ensure the effective design of the "first four-bar linkage".

[0092] The air guide plate mechanism 10 designed by the above-mentioned design method can ensure that no interference or jamming occurs between the various parts of the air guide plate mechanism 10 and the smoke collecting chamber main body 20 when the linear output mechanism 14 drives the first air guide plate 11 and the second air guide plate 12 to open and close synchronously, thereby ensuring smooth switching of the air guide plate mechanism 10 between the open state and the closed state.

[0093] In an optional embodiment, if Figure 1 , Figure 2 as well as Figure 7 to Figure 9 As shown, the step of S2 also includes:

[0094] like Figure 7 As shown, S25: according to the design requirements, the second length L2 of the second connecting rod 135 and the third length L3 of the output connecting rod 132 are selected, and a fourth auxiliary circle C4 is made with the sixth rotation connection position P6 as the third circle center O3 and the second length L2 as the radius;

[0095] like Figure 7 As shown, S26: rotating the third rotational connection position P3' before rotation around the second rotational connection position P2 by a second flip angle β to obtain the third rotational connection position P3'' after rotation;

[0096] The third rotation connection position P3' before rotation is the fourth circle center O4, and the third length L3 is used as the radius to form a fifth auxiliary circle C5. The intersection of the fourth auxiliary circle C4 and the fifth auxiliary circle C5 is the twelfth rotation connection position P before rotation. 12 ';

[0097] The third rotation connection position P3′′ after rotation is taken as the fifth circle center O5, and the sixth auxiliary circle C6 is drawn with the third length L3 as the radius. The intersection of the fourth auxiliary circle C4 and the sixth auxiliary circle C6 is the twelfth rotation connection position P 12 ' ';

[0098] like Figure 8 As shown, S27: the sixth rotation connection position P6' before rotation, the second rotation connection position P2' before rotation, and the twelfth rotation connection position P 12 The first rotation connection position P1 is rotated by a first flip angle α to obtain a sixth rotation connection position P6′′, a second rotation connection position P2′′, and a twelfth rotation connection position P 12 ' ';

[0099] like Fig. 9 As shown, S28: the eighth elongated rotation connection position P before rotation 8b ', the sixth rotational connection position P6' before rotation, the second rotational connection position P2' before rotation, the twelfth rotational connection position P2 before rotation of S26 12 ' rotates together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P 8b '' and the eighth contraction rotation connection position P before rotation 8a ' overlap, thereby obtaining the overlapped sixth rotation connection position P6''' and the overlapped twelfth rotation connection position P 12 ' ' ';

[0100] like Fig. 9 As shown, S29: select the eleventh rotation connection position P after rotation according to the design requirements 11 '' and the eleventh rotation connection position P after overlap 11 '', the eleventh rotation connection position P after rotation 11 '' and the eleventh rotation connection position P after overlap 11 The second connecting line N2 is formed by connecting the second connecting line N2 to form the second perpendicular midline M2. The intersection of the second perpendicular midline M2 and the input connecting rod 131 is the tenth rotation connection position P 10 .

[0101] Since the length of the third connecting rod 137 remains unchanged during the state switching of the connecting rod assembly 13, the eleventh rotation connection position P after rotation 11 '' and the tenth rotation connection position P 10 The distance between them is the same as the eleventh rotation connection position P after overlap 11 ''' and the tenth rotation connection position P 10 The distance between them should be the same, so after getting the eleventh rotation connection position P 11 '' and the eleventh rotation connection position P after overlap 11 After ''', the eleventh rotation connection position P 11 '' and the eleventh rotation connection position P after overlap 11 The second connecting line N2 is formed by connecting the second connecting line N2 to form the second perpendicular midline M2. The intersection of the second perpendicular midline M2 and the input connecting rod 131 is the tenth rotation connection position P 10 , the eleventh rotation connection position P before the connection rotation 11 ' and the tenth rotation connection position P 10 Obtaining the third link 137 can satisfy the aforementioned requirements and ensure the effective design of the “second four-bar linkage”.

[0102] The air guide plate mechanism 10 designed by the above-mentioned design method can ensure that no interference or jamming occurs between the various parts of the air guide plate mechanism 10 and the smoke collecting chamber main body 20 when the linear output mechanism 14 drives the first air guide plate 11 and the second air guide plate 12 to open and close synchronously, thereby ensuring smooth switching of the air guide plate mechanism 10 between the open state and the closed state.

[0103] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An air guide plate mechanism, which can cooperate with a smoke collecting chamber body (20) of a fume treatment device, characterized in that: The air deflector mechanism comprises: A first air guide plate (11) and a second air guide plate (12), wherein the smoke collecting chamber body (20), the first air guide plate (11) and the second air guide plate (12) are rotatably connected in sequence; A connecting rod assembly (13), comprising an input connecting rod (131) and an output connecting rod (132), wherein the input connecting rod (131) is fixedly connected to the smoke collecting chamber body (20) and the first air guide plate (11) respectively, and the output connecting rod (132) is rotatably connected to the second air guide plate (12); and A linear output mechanism (14) comprises an output mechanism body (141) and an output end (142) capable of linear motion relative to the output mechanism body (141), wherein the output mechanism body (141) is rotatably connected to the smoke collecting chamber body (20), and the output end (142) is rotatably connected to the input connecting rod (131); when the output end (142) moves relative to the output mechanism body (141), the connecting rod assembly (13) can cause the first air guide plate (11) to flip relative to the smoke collecting chamber body (20), and simultaneously cause the second air guide plate (12) to flip relative to the first air guide plate (11).

2. The air deflector mechanism according to claim 1, characterized in that: The connecting rod assembly (13) also includes a first connecting rod (134), a second connecting rod (135) and a third connecting rod (137); one end of the input connecting rod (131) is rotatable relative to the smoke collecting chamber body (20); the other end of the input connecting rod (131) is rotatably connected to the output end (142); one end of the first connecting rod (134) is rotatably connected to the input connecting rod (131); the other end of the first connecting rod (134) is rotatably connected to the first air guide plate (11); the first air guide plate (11), the second connecting rod (135), the output connecting rod (132) and the second air guide plate (12) are rotatably connected in sequence; one end of the third connecting rod (137) is rotatably connected to the input connecting rod (131); the other end of the third connecting rod (137) is rotatably connected to the second connecting rod (135).

3. The air deflector mechanism according to claim 2, characterized in that: The connecting rod assembly (13) further comprises: A first mounting seat (133), the first mounting seat (133) being arranged on the smoke collecting chamber body (20), and one end of the input connecting rod (131) away from the output end (142) being rotatably connected to the first mounting seat (133); A second mounting seat (136), wherein the second mounting seat (136) is arranged on the first air guide plate (11), the other end of the first connecting rod (134) is rotatably connected to the second mounting seat (136), and one end of the second connecting rod (135) away from the output connecting rod (132) is rotatably connected to the second mounting seat (136).

4. The air deflector mechanism according to claim 3, characterized in that: One of the first wind guide plate (11) and the second wind guide plate (12) comprises a pivot shaft (122) extending along the width direction of the first wind guide plate (11), and the pivot shaft (122) is rotatably connected to the other of the two.

5. The air deflector mechanism according to claim 3, characterized in that: The connecting rod assemblies (13) are arranged in at least two groups, and the at least two groups of connecting rod assemblies (13) are arranged at intervals along the width direction of the air guide plate mechanism, and two adjacent connecting rod assemblies (13) are connected via a connecting piece.

6. The air deflector mechanism according to claim 3, characterized in that: When the air guide plate mechanism is in an open state, the first air guide plate (11) is flipped open at a first flip angle α relative to the smoke collecting chamber body (20), and the second air guide plate (12) is flipped open at a second flip angle β relative to the smoke collecting chamber body (20), and the second flip angle β is greater than the first flip angle α.

7. A fume treatment device, comprising a fume collecting chamber body (20), characterized in that: The oil fume treatment device also includes an air guide plate mechanism as described in any one of claims 1 to 6.

8. A method for designing an air deflector mechanism, used for designing an air deflector mechanism as claimed in any one of claims 3 to 6, characterized in that: The design method comprises: S1: Preset initial parameters, the initial parameters including an initial position of the first air guide plate (11), a first flip angle α of the first air guide plate (11) flipped open relative to the smoke collecting chamber body (20), a first rotational connection position P1 of the first air guide plate (11) and the smoke collecting chamber body (20), a second rotational connection position P2 of the first air guide plate (11) and the second air guide plate (12), a third rotational connection position P3 of the second air guide plate (12) and the output connecting rod (132), a second flip angle β of the second air guide plate (12) flipped open relative to the first air guide plate (11), and a first rotational connection position P4 of the second air guide plate (12) and the output connecting rod (132). a position of a mounting seat (133) on the smoke collecting chamber body (20), a position of the second mounting seat (136) on the second air guide plate (12), a fourth rotational connection position P4 between the first mounting seat (133) and the input connecting rod (131), a fifth rotational connection position P5 and a sixth rotational connection position P6 on the second mounting seat (136), a seventh rotational connection position P7 between the linear output mechanism (14) and the smoke collecting chamber body (20), and a first length L1 from an eighth rotational connection position P8 between the output end (142) and the input connecting rod (131) to the fourth rotational connection position P4; S2: According to the initial parameters, determine the ninth rotational connection position P9 between the input connecting rod (131) and the first connecting rod (134), the tenth rotational connection position P9 between the third connecting rod (137) and the input connecting rod (131) 10 , the eleventh rotational connection position P of the third connecting rod (137) and the second connecting rod (135) 11 , a twelfth rotational connection position P of the second connecting rod (135) and the output connecting rod (132) 12 .

9. The design method of the air deflector mechanism according to claim 8, characterized in that: The steps of S2 include: S21: draw a first auxiliary circle C1 with the fourth rotational connection position P4 as the first circle center O1 and the first length L1 as the radius; S22: With the seventh rotational connection position P7 as the second circle center O2, with all possible minimum positions of the eighth rotational connection position P8 as the radius, a second auxiliary circle C2 is drawn, with all possible maximum positions of the eighth rotational connection position P8 as the radius, a third auxiliary circle C3 is drawn, and the intersection of the second auxiliary circle C2 and the first auxiliary circle C1 is the eighth contraction rotational connection position P8 when the output connecting rod (132) is contracted. 8a The intersection of the third auxiliary circle C3 and the first auxiliary circle C1 is the eighth extension rotation connection position P when the output connecting rod (132) is extended. 8b ; S23: taking the first rotational connection position P1 as the rotation center, rotating the fifth rotational connection position P5' before rotation by the flip angle α to obtain the fifth rotational connection position P5' after rotation; S24: Rotate the eighth elongated connection position P before rotation 8b ' and the fifth rotation connection position P5' before rotation rotate together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P after rotation 8b '' and the eighth contraction rotation connection position P before rotation 8a ' overlap, thereby obtaining the overlapped fifth rotational connection position P5''', connecting the overlapped fifth rotational connection position P5''' with the rotated fifth rotational connection position P5'' to form a first connecting line N1, making a first perpendicular midline M1 of the first connecting line N1, the intersection point of the first perpendicular midline M1 and the input connecting rod (131) is the ninth rotational connection position P9, connecting the fifth rotational connection position P5' before rotation with the ninth rotational connection position P9 to obtain the first connecting rod (134).

10. The design method of the air deflector mechanism according to claim 9, characterized in that: The step of S2 further includes: S25: selecting the second length L2 of the second connecting rod (135) and the third length L3 of the output connecting rod (132) according to design requirements, and making a fourth auxiliary circle C4 with the sixth rotational connection position P6 as the third circle center O3 and the second length L2 as the radius; S26: rotating the third rotational connection position P3' before rotation around the second rotational connection position P2 by the second flip angle β to obtain the third rotational connection position P3'' after rotation; The third rotation connection position P3' before rotation is the fourth circle center O4, and the third length L3 is used as the radius to make a fifth auxiliary circle C5. The intersection of the fourth auxiliary circle C4 and the fifth auxiliary circle C5 is the twelfth rotation connection position P before rotation. 12 '; The third rotation connection position P3′′ after rotation is taken as the fifth circle center O5, and the third length L3 is taken as the radius to form a sixth auxiliary circle C6. The intersection of the fourth auxiliary circle C4 and the sixth auxiliary circle C6 is the twelfth rotation connection position P after rotation. 12 ' '; S27: The sixth rotational connection position P6' before rotation, the second rotational connection position P2' before rotation, and the twelfth rotational connection position P6' before rotation of S26 are 12 The first rotation connection position P1 is rotated by the first flip angle α to obtain the sixth rotation connection position P6′′, the second rotation connection position P2′′, and the twelfth rotation connection position P6′′ after rotation. 12 ' '; S28: The eighth elongated rotation connection position P before rotation 8b ', the sixth rotational connection position P6' before rotation, the second rotational connection position P2' before rotation, the twelfth rotational connection position P before rotation of S26 12 ' rotates together around the fourth rotation connection position P4, so that the eighth extended rotation connection position P 8b '' and the eighth contraction rotation connection position P before rotation 8a ' overlap, thereby obtaining the overlapped sixth rotation connection position P6''' and the overlapped twelfth rotation connection position P 12 ' ' '; S29: Select the eleventh rotation connection position P after rotation according to design requirements 11 '' and the eleventh rotation connection position P after overlap 11 '', rotate the eleventh rotation connection position P 11 '' and the eleventh rotation connection position P after overlap 11 The second connecting line N2 is formed by connecting the second connecting line N2, and the second perpendicular midline M2 is formed. The intersection point of the second perpendicular midline M2 and the input connecting rod (131) is the tenth rotation connection position P 10 .

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