Smoke deflector turnover mechanism and range hood

Abstract

The utility model discloses a smoke deflector overturning mechanism which comprises a machine shell, a smoke deflector and a smoke deflector, a smoke deflector; a driving device; a link assembly; the driving device can drive the smoke deflector to turn over through the connecting rod assembly; a current detection device; the control device can control the driving device to work or not according to the current information fed back by the current detection device; wherein a receding hole is formed in a front side plate of the smoke collecting cavity, the connecting rod assembly is provided with an abutting part capable of abutting against the periphery of the receding hole, when the smoke guiding plate is turned upwards and the abutting part abuts against the periphery of the receding hole, the smoke guiding plate stops turning, and a gap is formed between the upper end of the smoke guiding plate and the outer surface of the machine shell. Therefore, the abutting part can prevent the smoke guide plate from continuously overturning upwards, and therefore the outer surface of the machine shell can be protected. And the control device can control the driving device to stop working in time, so that the driving device can be protected. In addition, the utility model further discloses a range hood with the smoke deflector turnover mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a smoke guide plate turning mechanism and a range hood. Background Art

[0002] A range hood generally includes a housing and a smoke guide plate. The housing has a smoke collecting chamber and a smoke inlet connected to the smoke collecting chamber. The smoke guide plate is rotatably mounted at the smoke inlet and can open or close the smoke inlet. A driving device and a connecting rod assembly are installed in the smoke collecting chamber. One end of the connecting rod assembly is connected to the driving device, and the other end is connected to the smoke guide plate. A limit switch is also provided inside the driving device so that the driving device can drive the smoke guide plate to accurately flip to a set position, thereby driving the smoke guide plate to flip relative to the housing to open or close the smoke inlet.

[0003] However, during the long-term use of the range hood, the internal limit switch of the driving device may fail, which may easily cause the driving device to drive the smoke guide plate to continue to flip upward, and then cause the upper end of the smoke guide plate to directly hit the outer surface of the casing, which not only seriously affects the normal use of the range hood, but also causes the outer surface of the casing to deform or be damaged. In particular, the front outer surface of the casing is usually provided with a glass panel. If the smoke guide plate directly hits the glass panel, it may cause the glass panel to break, which not only increases the difficulty of repairing the range hood, but also increases the maintenance cost of the range hood. In addition, when the smoke guide plate flips to abut against the outer surface of the casing, the smoke guide plate is at the limit position of the movable range, and the connecting rod assembly can no longer push the smoke guide plate to continue flipping, but the driving device is still working. If the driving device cannot stop working in time, the current in the driving device will continue to increase, which may easily cause damage to the driving device. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a smoke guide plate flipping mechanism, which can reduce the risk of the smoke guide plate continuously flipping upward to abut against the outer surface of the casing, thereby protecting the outer surface of the casing and the driving device.

[0005] The utility model also provides a range hood equipped with the smoke guide plate flipping mechanism.

[0006] The smoke guide plate flipping mechanism according to the embodiment of the utility model comprises: a housing having a smoke collecting chamber and a smoke inlet connected to the smoke collecting chamber; a smoke guide plate rotatably mounted on the housing and capable of flipping relative to the housing to open or close the smoke inlet; a driving device mounted in the smoke collecting chamber; a connecting rod assembly connected between the driving device and the smoke guide plate, the driving device being capable of driving the smoke guide plate to flip through the connecting rod assembly; a current detection device electrically connected to the driving device, the current detection device being used to detect current changes when the driving device is working; a control The device is electrically connected to the current detection device and the driving device, and the control device can control whether the driving device works or not according to the current information fed back by the current detection device; wherein, the front side plate of the smoke collecting chamber is provided with a clearance hole, and the connecting rod assembly is movably inserted into the clearance hole, and the connecting rod assembly has an abutment portion that can abut against the periphery of the clearance hole, and when the smoke guide plate is flipped upward to open the smoke inlet and makes the abutment portion abut against the periphery of the clearance hole, the smoke guide plate stops flipping, and there is a gap between the upper end of the smoke guide plate and the outer surface of the casing.

[0007] The smoke guide plate flipping mechanism according to the embodiment of the utility model has at least the following beneficial effects:

[0008] By adopting the smoke guide plate flipping mechanism of the embodiment of the utility model, the driving device can drive the smoke guide plate to flip upward to open the smoke inlet or flip downward to close the smoke inlet through the connecting rod assembly. In the process of the smoke guide plate flipping upward, the abutting portion of the connecting rod assembly can abut against the periphery of the clearance hole to prevent the smoke guide plate from continuing to flip upward. At this time, there is a gap between the upper end of the smoke guide plate and the outer surface of the casing, thereby reducing the risk of the smoke guide plate continuously flipping upward to abut against the outer surface of the casing, thereby protecting the outer surface of the casing. In addition, when the abutting portion abuts against the periphery of the clearance hole, the smoke guide plate flips to the extreme position, and the connecting rod assembly can no longer push the smoke guide plate to continue flipping, but the driving device is still working. At this time, the current in the driving device will increase. When the current detection device detects that the current in the driving device increases to a preset value, the control device can control the driving device to stop working in time, thereby protecting the driving device.

[0009] According to some embodiments of the utility model, the driving device includes a driver and a push rod, the driver is installed in the smoke collecting chamber and is electrically connected to the current detection device and the control device, one end of the push rod is connected to the driver, and the other end is connected to the connecting rod assembly; the driver can drive the push rod to extend and retract, and the push rod can drive the smoke guide plate to flip relative to the casing through the connecting rod assembly.

[0010] According to some embodiments of the utility model, the connecting rod assembly includes a connecting rod, which is movably inserted into the yield hole, one end of the connecting rod located in the smoke collecting chamber is rotatably mounted on the front side plate, the other end of the connecting rod is connected to the smoke guide plate, the abutment portion is arranged on the connecting rod and is located in the smoke collecting chamber, and the push rod is connected to the connecting rod and can push the connecting rod to rotate relative to the casing.

[0011] According to some embodiments of the present invention, the abutment portion is formed by bending an edge of the connecting rod.

[0012] According to some embodiments of the present utility model, the connecting rod assembly also includes a mounting bracket and a connecting assembly, the mounting bracket is mounted on the inner surface of the front side plate, the mounting bracket has a connecting ear, and the connecting rod is rotatably connected to the connecting ear through the connecting assembly.

[0013] According to some embodiments of the utility model, a glass panel located above the smoke guide plate is installed on the outer surface of the front side plate; at least one first countersunk hole is opened on the side surface of the mounting bracket close to the front side plate, and a second countersunk hole corresponding to the first countersunk hole is opened on the outer surface of the front side plate, and also includes a fastener, which is sequentially passed through the second countersunk hole and the first countersunk hole, and the outer end of the fastener is located inside the second countersunk hole.

[0014] According to some embodiments of the utility model, the connecting ear is provided with a first connecting hole, and the connecting rod is provided with a second connecting hole; the connecting assembly includes a connecting nail, the connecting nail having a nail rod, a nail cap and a flange, the nail rod is passed through the first connecting hole and the second connecting hole, the nail cap and the flange are correspondingly connected to the two ends of the nail rod, and the nail cap and the flange can cooperate to clamp the connecting ear and the connecting rod.

[0015] According to some embodiments of the utility model, the connecting assembly also includes: a first gasket, which is sleeved on the nail rod, and the first gasket is located between the nail cap and the connecting ear; a second gasket, which is sleeved on the nail rod, and the second gasket is located between the connecting ear and the connecting rod; a third gasket, which is sleeved on the nail rod, and the third gasket is located between the connecting rod and the flange.

[0016] According to some embodiments of the present invention, the second gasket has a boss extending to be embedded in the first connecting hole, and the boss is sandwiched between the inner wall of the first connecting hole and the outer wall of the nail rod.

[0017] According to the range hood of the embodiment of the utility model, a smoke guide plate flipping mechanism of any one of the above embodiments is provided.

[0018] The range hood according to the embodiment of the utility model has at least the following beneficial effects:

[0019] By setting the smoke guide plate flipping mechanism of any of the above embodiments, during the process of the smoke guide plate flipping upward, the abutting portion can abut against the periphery of the clearance hole to prevent the smoke guide plate from continuing to flip upward, thereby reducing the risk of the smoke guide plate continuously flipping upward to abut against the outer surface of the casing, thereby protecting the outer surface of the casing. The control device can control the drive device to stop working in time according to the current information fed back by the current detection device, thereby protecting the drive device. As a result, the range hood of the embodiment of the utility model can reduce the risk of the smoke guide plate continuously flipping upward to abut against the outer surface of the casing, thereby protecting the outer surface of the casing and the drive device.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic diagram of a smoke guide plate of an embodiment of the utility model being closed;

[0023] Figure 2 A schematic diagram of an embodiment of the utility model in which the smoke guide plate is opened;

[0024] Figure 3 It is a cross-sectional schematic diagram of a smoke guide plate of an embodiment of the utility model when it is closed;

[0025] Figure 4 Another cross-sectional schematic diagram of the smoke guide plate of the embodiment of the utility model when it is closed;

[0026] Figure 5 Another cross-sectional schematic diagram of the smoke guide plate of the embodiment of the utility model when it is closed;

[0027] Figure 6 This is a cross-sectional schematic diagram of an open smoke guide plate according to an embodiment of the utility model;

[0028] Figure 7 Another cross-sectional schematic diagram of the smoke guide plate of the embodiment of the utility model when it is opened;

[0029] Figure 8 for Figure 7 A partial enlarged view of the middle A;

[0030] Fig. 9 Another cross-sectional schematic diagram of the smoke guide plate of the embodiment of the utility model when it is opened;

[0031] Fig.10 A schematic diagram of a connecting rod assembly according to an embodiment of the present utility model;

[0032] Fig.11 It is a schematic exploded view of a connecting rod assembly according to an embodiment of the utility model.

[0033] Reference numerals:

[0034] The housing 100, the smoke collecting chamber 110, the front side plate 120, the second countersunk hole 121, and the clearance hole 130;

[0035] Smoke guide plate 200;

[0036] Driving device 300, driver 310, push rod 320;

[0037] Connecting rod 400, abutting portion 410, and a second connecting hole 420;

[0038] The mounting bracket 500, the connecting ear 510, the first connecting hole 520, the first countersunk hole 530, the connecting nail 540, the nail rod 541, the nail cap 542, the flange 543, the first gasket 550, the second gasket 560, the boss 561, and the third gasket 570;

[0039] Glass panel 600. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0044] Reference Figures 1 to 11 In one embodiment of the utility model, a smoke guide plate flipping mechanism is proposed, which includes a housing 100, a smoke guide plate 200, a driving device 300, a connecting rod assembly, a current detection device and a control device. The housing 100 has a smoke collecting chamber 110 and a smoke inlet connected to the smoke collecting chamber 110. The smoke guide plate 200 is rotatably mounted on the housing 100 and can flip relative to the housing 100 to open or close the smoke inlet. The driving device 300 is installed in the smoke collecting chamber 110. The connecting rod assembly is connected between the driving device 300 and the smoke guide plate 200, and the driving device 300 can drive the smoke guide plate 200 to flip through the connecting rod assembly. The current detection device is electrically connected to the driving device 300, and the current detection device is used to detect the current change when the driving device 300 is working. The control device is electrically connected to the current detection device and the driving device 300, and the control device can control whether the driving device 300 works or not according to the current information fed back by the current detection device. Among them, the front side plate 120 of the smoke collecting chamber 110 is provided with a clearance hole 130, and the connecting rod assembly is movably inserted into the clearance hole 130. The connecting rod assembly has an abutment portion 410 that can abut against the periphery of the clearance hole 130. When the smoke guide plate 200 is flipped upward to open the smoke inlet and the abutment portion 410 abuts against the periphery of the clearance hole 130, the smoke guide plate 200 stops flipping, and there is a gap between the upper end of the smoke guide plate 200 and the outer surface of the casing 100.

[0045] In the above structure, the driving device 300 can drive the smoke guide plate 200 to flip upward to open the smoke inlet or flip downward to close the smoke inlet through the connecting rod assembly. During the process of the smoke guide plate 200 flipping upward, the abutment portion 410 of the connecting rod assembly can abut against the periphery of the yield hole 130 to prevent the smoke guide plate 200 from continuing to flip upward. At this time, there is a gap between the upper end of the smoke guide plate 200 and the outer surface of the casing 100, thereby reducing the risk of the smoke guide plate 200 continuing to flip upward to abut against the outer surface of the casing 100, thereby protecting the outer surface of the casing 100. In addition, when the abutting portion 410 abuts against the periphery of the yield hole 130, the smoke guide plate 200 flips to the extreme position, and the connecting rod assembly can no longer push the smoke guide plate 200 to continue flipping, but the driving device 300 is still working. At this time, the current in the driving device 300 will increase. When the current detection device detects that the current in the driving device 300 increases to a preset value, the control device can control the driving device 300 to stop working in time, thereby protecting the driving device 300. It can be seen that when the internal limit switch of the driving device 300 fails, the smoke guide plate flipping mechanism of the embodiment of the utility model can timely prevent the smoke guide plate 200 from flipping upward and timely control the driving device 300 to stop working, thereby reducing the risk of the smoke guide plate 200 continuously flipping upward to abut against the outer surface of the housing 100, thereby protecting the outer surface of the housing 100 and the driving device 300.

[0046] It is understandable that, during the downward flipping of the smoke guide plate 200, if the internal limit switch of the drive device 300 fails, the smoke guide plate 200 will continue to flip downward until it abuts against the periphery of the smoke inlet. At this time, the connecting rod assembly can no longer push the smoke guide plate 200 to continue flipping downward, but the drive device 300 is still working, so the current in the drive device 300 will increase. When the current detection device detects that the current in the drive device 300 increases to a preset value, the control device can control the drive device 300 to stop working in time, thereby protecting the drive device 300 and reducing the damage to the casing 100 caused by the smoke guide plate 200 squeezing the periphery of the smoke inlet.

[0047] It is understandable that the current detection device may specifically be an ammeter, a current sensor, a Hall sensor, a Rogowski coil, etc., and the present invention does not make any specific limitation on this.

[0048] Reference Figures 1 to 11 In some embodiments, the driving device 300 includes a driver 310 and a push rod 320. The driver 310 is installed in the smoke collecting chamber 110 and is electrically connected to the current detection device and the control device. One end of the push rod 320 is connected to the driver 310, and the other end is connected to the connecting rod assembly. The driver 310 can drive the push rod 320 to extend and retract, and the push rod 320 can drive the smoke guide plate 200 to flip relative to the casing 100 through the connecting rod assembly.

[0049] In the above structure, the push rod 320 can be driven to extend and retract by the driver 310, thereby driving the smoke guide plate 200 to flip relative to the housing 100. The structure is compact and the transmission performance is good, making the flipping of the smoke guide plate 200 smoother.

[0050] It is understandable that the driver 310 may specifically be a motor.

[0051] Reference Figures 1 to 11 In some embodiments, the connecting rod assembly includes a connecting rod 400, which is movably inserted into the clearance hole 130, and one end of the connecting rod 400 located in the smoke collecting chamber 110 is rotatably mounted on the front side plate 120, and the other end of the connecting rod 400 is connected to the smoke guide plate 200, and the abutment portion 410 is provided on the connecting rod 400 and is located in the smoke collecting chamber 110, and the push rod 320 is connected to the connecting rod 400 and can push the connecting rod 400 to rotate relative to the housing 100.

[0052] In the above structure, the smoke guide plate 200 is connected to the connecting rod 400 by rotating and installing the connecting rod 400 on the front side plate 120, so that the driver 310 can drive the push rod 320 to extend and retract, thereby driving the connecting rod 400 to rotate, and then driving the smoke guide plate 200 to flip upward to open the smoke inlet, or driving the smoke guide plate 200 to flip downward to close the smoke inlet.

[0053] It is understandable that the smoke guide plate 200 is rotatably mounted on the housing 100. Specifically, since one end of the connecting rod 400 located in the smoke collecting chamber 110 is rotatably mounted on the front side plate 120, and the other end of the connecting rod 400 is connected to the smoke guide plate 200, the smoke guide plate 200 can be directly rotatably mounted on the housing 100 through the connecting rod 400, and the structure is simple and easy to assemble. Of course, in addition to this, the smoke guide plate 200 can also be rotatably mounted on the housing 100 through a rotating shaft or other rotating structures, and the utility model does not make specific limitations on this.

[0054] Reference Figures 1 to 11 In some embodiments, the abutment portion 410 is formed by bending the edge of the connecting rod 400 .

[0055] In the above structure, the abutting portion 410 is formed by bending the edge of the connecting rod 400, so that the processing of the abutting portion 410 is simpler and more convenient, thereby facilitating the production and processing of the smoke guide plate flipping mechanism.

[0056] It is understandable that, in addition to forming the abutment portion 410 by bending the edge of the connecting rod 400, in other embodiments, the abutment portion 410 can also be installed on the connecting rod 400 through structures such as fasteners or clips, or can also be installed on the connecting rod 400 by welding or other methods, and the present invention does not make specific limitations on this.

[0057] Reference Figures 1 to 11In some embodiments, the connecting rod assembly further includes a mounting bracket 500 and a connecting assembly. The mounting bracket 500 is mounted on the inner surface of the front side plate 120. The mounting bracket 500 has a connecting ear 510. The connecting rod 400 is rotatably connected to the connecting ear 510 through the connecting assembly.

[0058] In the above structure, by providing the mounting bracket 500 and the connecting assembly, the connecting rod 400 can be easily rotatably mounted on the front side plate 120, so that the mounting of the connecting rod 400 is more secure and the rotation of the connecting rod 400 is smoother.

[0059] Reference Figures 1 to 11 In some embodiments, a glass panel 600 located above the smoke guide plate 200 is installed on the outer surface of the front side plate 120; two first countersunk holes 530 are opened on the side surface of the mounting bracket 500 close to the front side plate 120, and a second countersunk hole 121 corresponding to the first countersunk hole 530 is opened on the outer surface of the front side plate 120, and also includes a fastener, which is sequentially penetrated through the second countersunk hole 121 and the first countersunk hole 530, and the outer end of the fastener is located inside the second countersunk hole 121.

[0060] In the above structure, the arrangement of the glass panel 600 can make the appearance of the range hood more neat and beautiful. By providing a first countersunk hole 530 on the mounting bracket 500 and providing a second countersunk hole 121 corresponding to the first countersunk hole 530 on the outer surface of the front side plate 120, during installation, the fasteners can be sequentially inserted into the second countersunk hole 121 and the first countersunk hole 530, so that the mounting bracket 500 is installed on the front side plate 120. In addition, the outer end of the fastener is located inside the second countersunk hole 121, that is, the outer end of the fastener does not form a protrusion relative to the front side plate 120, thereby facilitating the installation of the glass panel 600 to the outer surface of the front side plate 120.

[0061] It is understandable that the glass panel 600 can be mounted on the outer surface of the front side plate 120 by means of mounting.

[0062] It is understandable that the mounting bracket 500 has two first countersunk holes 530 on one side surface close to the front side plate 120, which is only for Figures 1 to 11 As an exemplary illustration, the number of the first countersunk holes 530 may be two, one, three, four or more, and the present invention does not make any specific limitation on this.

[0063] It can be understood that the first countersunk hole 530 and the second countersunk hole 121 can be specifically conical countersunk holes. This structure has a guiding function to guide the installation of the fasteners, avoid deviation in the installation of the fasteners, and make the installation of the fasteners more convenient and quick.

[0064] It is understandable that the above-mentioned fasteners may specifically be screws or bolts, etc., and the present invention does not make any specific limitation on this.

[0065] Reference Figures 1 to 11 In some embodiments, the connecting ear 510 is provided with a first connecting hole 520, and the connecting rod 400 is provided with a second connecting hole 420; the connecting component includes a connecting nail 540, and the connecting nail 540 has a nail rod 541, a nail cap 542 and a flange 543, the nail rod 541 is passed through the first connecting hole 520 and the second connecting hole 420, the nail cap 542 and the flange 543 are correspondingly connected to the two ends of the nail rod 541, and the nail cap 542 and the flange 543 can cooperate to clamp the connecting ear 510 and the connecting rod 400.

[0066] In the above structure, by setting a connecting nail 540, the nail rod 541 of the connecting nail 540 is inserted into the first connecting hole 520 and the second connecting hole 420, and the nail cap 542 and the flange 543 of the connecting nail 540 can cooperate to clamp the connecting ear 510 and the connecting rod 400, thereby making the connection between the connecting rod 400 and the connecting ear 510 more firm and stable, thereby making the rotation of the connecting rod 400 smoother and reducing the risk of the connecting rod 400 being detached from the connecting ear 510.

[0067] Reference Fig.10 and Fig.11 In some embodiments, the connection assembly further includes a first gasket 550, a second gasket 560, and a third gasket 570. The first gasket 550 is sleeved on the nail rod 541 and is located between the nail cap 542 and the connecting ear 510. The second gasket 560 is sleeved on the nail rod 541 and is located between the connecting ear 510 and the connecting rod 400. The third gasket 570 is sleeved on the nail rod 541 and is located between the connecting rod 400 and the flange 543.

[0068] In the above structure, by providing the first gasket 550, the second gasket 560 and the third gasket 570, the wear problem caused by friction when the connecting rod 400 rotates relative to the mounting bracket 500 can be solved, the connecting rod 400 and the connecting ear 510 can be protected, and the rotation of the connecting rod 400 can be smoother.

[0069] It is understandable that the friction caused by the relative movement between metal parts is not only likely to cause wear to the parts, but also cause abnormal noise and shaking when the connecting rod 400 rotates. Therefore, in some embodiments, the first gasket 550 and the second gasket 560 can be specifically made of plastic parts, such as nylon gaskets. Plastic is elastic, can rebound during use and has good wear resistance, thereby reducing the abnormal noise and shaking that occur when the connecting rod 400 rotates.

[0070] It can be understood that, in some embodiments, the flange 543 of the connecting pin 540 can be formed by external force extrusion, such as riveting, so that the flange 543 can press the third gasket 570, so that the connection between the connecting rod 400 and the connecting ear 510 is more secure, reducing the risk of loosening between the two.

[0071] Furthermore, the third gasket 570 can be specifically made of metal, so that when the end of the nail rod 541 away from the top cap is extruded to form a flange, the flange and the third gasket 570 can be pressed together, thereby making the connection between the connecting rod 400 and the connecting ear 510 and the three gaskets more firmly and stably.

[0072] Reference Fig.10 and Fig.11 In some embodiments, the second gasket 560 has a boss 561 extending to be embedded in the first connecting hole 520 , and the boss 561 is sandwiched between the inner wall of the first connecting hole 520 and the outer wall of the nail rod 541 .

[0073] In the above structure, the boss 561 is located between the inner wall of the first connecting hole 520 and the outer wall of the nail rod 541, so that the installation of the nail rod 541 is more firm and stable, and can reduce the wear caused by friction between the outer wall of the nail rod 541 and the inner wall of the first connecting hole 520.

[0074] An embodiment of the present invention further provides a range hood, which is provided with the smoke guide plate flipping mechanism of any of the above embodiments.

[0075] By setting the smoke guide plate flipping mechanism of any of the above embodiments, during the process of the smoke guide plate 200 flipping upward, the abutting portion 410 of the connecting rod assembly can abut against the periphery of the clearance hole 130 to prevent the smoke guide plate 200 from continuing to flip upward. At this time, there is a gap between the upper end of the smoke guide plate 200 and the outer surface of the housing 100, thereby reducing the risk of the smoke guide plate 200 continuously flipping upward to abut against the outer surface of the housing 100, thereby protecting the outer surface of the housing 100. In addition, when the abutting portion 410 abuts against the periphery of the clearance hole 130, the smoke guide plate 200 flips to the extreme position, and the connecting rod assembly can no longer push the smoke guide plate 200 to continue flipping, but the driving device 300 is still working, and the current in the driving device 300 will increase. When the current detection device detects that the current in the driving device 300 increases to a preset value, the control device can control the driving device 300 to stop working in time, thereby protecting the driving device 300.

[0076] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The smoke guide plate flipping mechanism is characterized by: include: A housing (100) having a smoke collecting chamber (110) and a smoke inlet connected to the smoke collecting chamber (110); A smoke guide plate (200) is rotatably mounted on the housing (100) and is capable of flipping relative to the housing (100) to open or close the smoke inlet; A driving device (300) installed in the smoke collecting chamber (110); a connecting rod assembly connected between the driving device (300) and the smoke guide plate (200), wherein the driving device (300) can drive the smoke guide plate (200) to flip through the connecting rod assembly; a current detection device, electrically connected to the driving device (300), the current detection device being used to detect current changes when the driving device (300) is working; a control device electrically connected to the current detection device and the drive device (300), the control device being capable of controlling whether the drive device (300) works or not according to current information fed back by the current detection device; The front side plate (120) of the smoke collecting chamber (110) is provided with a clearance hole (130), the connecting rod assembly is movably inserted into the clearance hole (130), and the connecting rod assembly has an abutment portion (410) capable of abutting against the periphery of the clearance hole (130). When the smoke guide plate (200) flips upward to open the smoke inlet and causes the abutment portion (410) to abut against the periphery of the clearance hole (130), the smoke guide plate (200) stops flipping, and a gap is formed between the upper end of the smoke guide plate (200) and the outer surface of the housing (100).

2. The smoke guide plate turning mechanism according to claim 1, characterized in that: The driving device (300) comprises a driver (310) and a push rod (320); the driver (310) is installed in the smoke collecting chamber (110) and is electrically connected to the current detection device and the control device; one end of the push rod (320) is connected to the driver (310), and the other end is connected to the connecting rod assembly; The driver (310) can drive the push rod (320) to extend and retract, and the push rod (320) can drive the smoke guide plate (200) to flip relative to the housing (100) through the connecting rod assembly.

3. The smoke guide plate turning mechanism according to claim 2, characterized in that: The connecting rod assembly comprises a connecting rod (400), wherein the connecting rod (400) is movably inserted into the clearance hole (130), one end of the connecting rod (400) located in the smoke collecting chamber (110) is rotatably mounted on the front side plate (120), and the other end of the connecting rod (400) is connected to the smoke guide plate (200), the abutment portion (410) is arranged on the connecting rod (400) and is located in the smoke collecting chamber (110), and the push rod (320) is connected to the connecting rod (400) and can push the connecting rod (400) to rotate relative to the housing (100).

4. The smoke guide plate turning mechanism according to claim 3, characterized in that: The abutment portion (410) is formed by bending the edge of the connecting rod (400).

5. The smoke guide plate turning mechanism according to claim 3, characterized in that: The connecting rod assembly also includes a mounting bracket (500) and a connecting assembly. The mounting bracket (500) is mounted on the inner surface of the front side plate (120), and the mounting bracket (500) has a connecting ear (510). The connecting rod (400) is rotatably connected to the connecting ear (510) through the connecting assembly.

6. The smoke guide plate turning mechanism according to claim 5, characterized in that: A glass panel (600) located above the smoke guide plate (200) is installed on the outer surface of the front side plate (120); At least one first countersunk hole (530) is formed on a surface of one side of the mounting bracket (500) close to the front side plate (120), and a second countersunk hole (121) corresponding to the first countersunk hole (530) is formed on an outer surface of the front side plate (120). It also includes a fastener, which is sequentially inserted into the second countersunk hole (121) and the first countersunk hole (530), and the outer end of the fastener is located inside the second countersunk hole (121).

7. The smoke guide plate turning mechanism according to claim 5, characterized in that: The connecting ear (510) is provided with a first connecting hole (520), and the connecting rod (400) is provided with a second connecting hole (420); The connecting assembly includes a connecting nail (540), wherein the connecting nail (540) has a nail rod (541), a nail cap (542) and a flange (543), wherein the nail rod (541) is inserted into the first connecting hole (520) and the second connecting hole (420), and the nail cap (542) and the flange (543) are correspondingly connected to two ends of the nail rod (541), and the nail cap (542) and the flange (543) can cooperate to clamp the connecting ear (510) and the connecting rod (400).

8. The smoke guide plate turning mechanism according to claim 7, characterized in that: The connection component also includes: A first gasket (550) is sleeved on the nail rod (541), and the first gasket (550) is located between the nail cap (542) and the connecting ear (510); A second gasket (560) is sleeved on the nail rod (541), and the second gasket (560) is located between the connecting ear (510) and the connecting rod (400); The third gasket (570) is sleeved on the nail rod (541), and the third gasket (570) is located between the connecting rod (400) and the convex edge (543).

9. The smoke guide plate turning mechanism according to claim 8, characterized in that: The second gasket (560) has a boss (561) extending to be embedded in the first connecting hole (520), and the boss (561) is sandwiched between the inner wall of the first connecting hole (520) and the outer wall of the nail rod (541).

10. A range hood, characterized in that: A smoke guide plate turning mechanism as described in any one of claims 1 to 9 is provided.

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