Range hood and leveling control method thereof

Abstract

The embodiment of the invention provides a range hood and a leveling control method thereof, and relates to the technical field of kitchen appliances. According to the range hood, the horizontal sensing part is arranged on the range hood body, and the horizontal sensing part can detect and recognize the levelness and the levelness condition of the range hood body; according to the range hood, the at least two suspension devices are arranged on the range hood body, when the horizontal sensing part detects that the range hood body is not in the horizontal state, the at least two suspension devices can drive the range hood body to move in the first direction, and the range hood body can be automatically adjusted up and down or automatically leveled; by means of the arrangement, deviation of the range hood caused by tiny vibration generated by operation of the motor or other reasons is avoided, it is guaranteed that the range hood body and the range hood body and a cabinet are flush and attractive, the use experience of a user is improved, and meanwhile the installation difficulty of the range hood body is lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a range hood and a leveling control method thereof. Background Art

[0002] At present, range hoods are one of the most commonly used household appliances. Among them, embedded range hoods are a type that can be embedded in a kitchen cabinet, with most of the range hood body hidden in the cabinet, which is more aesthetically pleasing.

[0003] In the prior art, installing a built-in range hood inside a cabinet requires first measuring the hood's installation height based on the cabinet's height, then securing the bracket to the wall using expansion bolts, and then installing the hood on the bracket. This installation method leads to the following problems: First, since the range hood remains fixed after installation, the installation technician's skill determines whether the cabinet and range hood are flush and aesthetically pleasing, and whether the installed range hood affects the oil flow inside the range hood. Second, after installation, the range hood can shift during use due to minor vibrations from the motor or other factors. This shift cannot be reset, resulting in a poor aesthetic and oil flow problem. Summary of the Invention

[0004] The purpose of the present invention includes providing a range hood and a leveling control method thereof, which can automatically level the range hood body.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a range hood, comprising: a range hood body;

[0007] At least two suspension devices are spaced apart and fixed to the wall, with output ends of the at least two suspension devices connected to the left and right ends of the range hood body, respectively, and the suspension devices are used to drive the range hood body to move in a first direction so that the range hood body is horizontal;

[0008] A horizontal sensor is provided on the range hood body, and is used to detect the horizontality of the range hood body. The horizontal sensor is communicatively connected to the at least two suspension devices.

[0009] In an optional embodiment, the range hood further includes at least two ejection structures, which are respectively arranged at the left and right ends of the range hood body and the output ends of the ejection structures face the wall, and the ejection structures are used to drive the range hood body to move along the second direction.

[0010] In an optional embodiment, the range hood body includes a main unit and a smoke collection hood, the main unit is arranged above the smoke collection hood, and the output ends of the at least two suspension devices are connected to the top of the main unit; the horizontal sensor is arranged on the top of the smoke collection hood, and the horizontal sensor is located at the center line of the top surface of the smoke collection hood;

[0011] The four vertices of the top of the smoke collecting hood are each provided with a first sensor, and the first sensor is used to detect the distance between the range hood body and the ceiling;

[0012] The four vertices at the bottom of the main unit are each provided with a second sensor, and the second sensor is used to detect the distance between the range hood body and the adjacent cabinet;

[0013] The host is internally provided with a control module, and the control module is communicatively connected with the horizontal sensor, the first sensor, the second sensor and the suspension device.

[0014] In a second aspect, the present invention provides a range hood leveling control method, based on the range hood described in any one of the aforementioned embodiments;

[0015] The leveling control method comprises the following steps:

[0016] determining whether the range hood body is horizontal based on the tilt angle of the range hood body relative to the horizontal line detected by the horizontal sensor;

[0017] If the range hood body is not level, the deviation value of the range hood body relative to the horizontal line is calculated and the range hood body is automatically leveled.

[0018] In an optional embodiment, if the range hood body is not level, the step of calculating the deviation of the range hood body from the horizontal line and automatically leveling the range hood body specifically includes:

[0019] Calculating a first inclination angle Z of the range hood body relative to a second direction according to a position of the horizontal sensor on the range hood body;

[0020] Calculating a first deviation value according to the first inclination angle Z, and controlling the at least two ejection structures to drive the range hood body to move along a second direction by the first deviation value, so as to make the range hood body horizontal;

[0021] Wherein, the calculation formula 1 of the first deviation value W is: W=U*sinZ;

[0022] Wherein, W is the first deviation value, U is the distance between the hook hole and the ejection structure, and the hook hole is provided on the range hood body and is used for being hung with the suspension device.

[0023] In an optional embodiment, a second inclination angle S of the range hood body relative to the third direction is calculated according to the position of the horizontal sensor on the range hood body;

[0024] Calculating a second deviation value based on the second tilt angle S, and controlling the suspension device to move the range hood body along the first direction by the second deviation value, so that the range hood body is horizontal;

[0025] Wherein, the calculation formula 2 of the second deviation value R is: R=P*sinS;

[0026] Wherein, R is the second deviation value, P is the spacing distance between the two suspension devices, and S is the second inclination angle.

[0027] In an optional embodiment, the leveling control method further includes the following steps:

[0028] If the range hood body is horizontal, the first sensor detects the distance between the top of the smoke collecting hood of the range hood body and the ceiling;

[0029] determining the installation mode of the range hood body according to the distance between the top of the smoke collecting hood of the range hood body and the ceiling detected by the first sensor;

[0030] If the distance between the top of the smoke hood and the suspended ceiling detected by the first sensor is within a range value H, it is determined that the installation method of the range hood body is the first installation method, and the height of the range hood body is automatically adjusted;

[0031] If the distance between the top of the smoke hood and the ceiling detected by the first sensor is less than the range value H, it is determined that the installation method of the range hood body is the second installation method, and the height of the range hood body is automatically adjusted;

[0032] Automatic leveling ends;

[0033] The first installation mode of the range hood body is as follows: cabinets are provided on both sides of the range hood body, the distance between the two cabinets is greater than the width of the smoke hood, and the depth of the main unit is less than the depth of the cabinets;

[0034] The second installation method of the range hood body is: cabinets are provided on both sides of the range hood body, the distance between the two cabinets is smaller than the width of the smoke hood, and the distance between the two cabinets is larger than the width of the main unit.

[0035] In an optional embodiment, if the distance between the top of the smoke hood and the suspended ceiling detected by the first sensor is less than a range value H, then determining that the installation mode of the range hood body is the second installation mode, and automatically adjusting the height of the range hood body specifically includes:

[0036] The at least two suspension devices operate simultaneously to move the range hood body upward in a first direction;

[0037] The first sensor detects the distance between the top of the smoke collecting hood of the range hood body and the bottom of the cabinet;

[0038] determining whether the at least two suspension devices continue to operate according to the distance between the top of the smoke hood and the bottom of the cabinet detected by the first sensor;

[0039] If the distance between the top of the fume hood and the bottom of the cabinet is a preset installation gap value I, the at least two suspension devices simultaneously stop moving and move upward;

[0040] If the distance between the top of the fume hood and the ceiling is greater than the preset installation gap value I, the at least two suspension devices continue to work simultaneously until the distance between the top of the fume hood and the bottom of the cabinet reaches the preset installation gap value I;

[0041] And / or, if the distance between the top of the smoke hood and the suspended ceiling detected by the first sensor is within a range value H, then determining that the installation mode of the range hood body is the first installation mode, and automatically adjusting the height of the range hood body specifically includes:

[0042] A second sensor detects the distance between the side wall of the host and the adjacent cabinet;

[0043] Automatically adjusting the height of the range hood body according to the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0044] If the distance between the side wall of the main unit and the adjacent cabinet is within a range value J, the at least two suspension devices move downward simultaneously;

[0045] If the distance between the side wall of the main unit and the adjacent cabinet is greater than the range value J, the at least two suspension devices move upward simultaneously;

[0046] Record the current installation position of the range hood body as the base point, and move the at least two suspension devices upward by a distance value K simultaneously;

[0047] Wherein, K is the distance between the second sensor and the top of the smoke hood.

[0048] In an optional embodiment, if the distance between the side wall of the main unit and the adjacent cabinet is within a range value J, the step of simultaneously moving the at least two suspension devices downward specifically includes:

[0049] The at least two suspension devices move downward simultaneously;

[0050] The second sensor again detects the distance between the side wall of the main unit and the adjacent cabinet, and determines whether the at least two suspension devices continue to work based on the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0051] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within the range value J, the at least two suspension devices continue to move downward simultaneously until the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J;

[0052] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J, the at least two suspension devices stop moving downward simultaneously.

[0053] Alternatively, if the distance between the side wall of the main unit and the adjacent cabinet is greater than the range value J, the step of simultaneously moving the at least two suspension devices upwards specifically includes:

[0054] The at least two suspension devices move upward simultaneously;

[0055] The second sensor again detects the distance between the side wall of the main unit and the adjacent cabinet, and determines whether the at least two suspension devices continue to work based on the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0056] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J, the at least two suspension devices continue to move downward simultaneously until the distance between the side wall of the fume hood and the adjacent cabinet detected by the second sensor is within the range value J;

[0057] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within a range value J, the at least two suspension devices stop moving upward at the same time.

[0058] In an optional embodiment, the leveling control method further comprises the following steps:

[0059] If the range hood body is horizontal, the second sensor detects the distance between the main body side wall of the range hood body and the adjacent cabinet;

[0060] Automatically adjusting the height of the range hood body according to the distance between the main body side wall of the range hood body and the adjacent cabinet detected by the second sensor;

[0061] Record the current installation position of the range hood body as the base point, and move the at least two suspension devices upward by a distance value K simultaneously;

[0062] Automatic leveling ends;

[0063] Wherein, K is the distance between the second sensor and the top of the smoke hood.

[0064] In an optional embodiment, the step of automatically adjusting the height of the range hood body according to the distance between the main body side wall of the range hood body and the adjacent cabinet detected by the second sensor specifically includes:

[0065] If the distance between the side wall of the main unit and the adjacent cabinet is within the range value J, it is determined that the installation method of the range hood body is the first installation method;

[0066] The at least two suspension devices move downward simultaneously;

[0067] The second sensor again detects the distance between the side wall of the main unit and the adjacent cabinet, and determines whether the at least two suspension devices continue to work based on the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0068] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within the range value J, the at least two suspension devices continue to move downward simultaneously until the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J;

[0069] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J, the at least two suspension devices stop moving downward simultaneously;

[0070] Alternatively, the step of automatically adjusting the height of the range hood body according to the distance between the main body side wall of the range hood body and the adjacent cabinet detected by the second sensor may further include:

[0071] If the distance between the main body side wall of the range hood body and the adjacent cabinet detected by the second sensor is within the range value L, it is determined that the installation method of the range hood body is the second installation method;

[0072] The at least two suspension devices move downward simultaneously;

[0073] The second sensor again detects the distance between the side wall of the main unit and the adjacent cabinet, and determines whether the at least two suspension devices continue to work based on the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0074] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within the range value L, the at least two suspension devices continue to move downward simultaneously until the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value L;

[0075] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value L, the at least two suspension devices stop moving downward simultaneously;

[0076] Alternatively, the step of automatically adjusting the height of the range hood body according to the distance between the main body side wall of the range hood body and the adjacent cabinet detected by the second sensor may further include:

[0077] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is greater than the range value J, the height of the range hood body is automatically adjusted;

[0078] The at least two suspension devices move upward simultaneously;

[0079] The second sensor again detects the distance between the side wall of the main unit and the adjacent cabinet, and determines the installation mode of the range hood body according to the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor;

[0080] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within the range value J, it is determined that the installation method of the range hood body is the first installation method, and the at least two suspension devices stop moving upward at the same time;

[0081] If the distance between the side wall of the main unit and the adjacent cabinet detected by the second sensor is within the range value L, it is determined that the installation method of the range hood body is the second installation method, and the at least two suspension devices stop moving upward at the same time.

[0082] The beneficial effects of the range hood and leveling control method thereof provided by the embodiments of the present invention include:

[0083] By arranging a horizontal sensor on the range hood body, the horizontal sensor can detect and identify the horizontality of the range hood body and its horizontal condition; by arranging at least two of the suspension devices on the range hood body, when the horizontal sensor detects that the range hood body is not in a horizontal state, at least two suspension devices can drive the range hood body to move along the first direction, and the range hood body can be automatically adjusted up and down or automatically leveled; this arrangement avoids the deviation of the range hood due to tiny vibrations generated by the operation of the motor or other reasons, ensures the flatness and beauty of the range hood body and the range hood body and the cabinet, improves the user experience, and also reduces the difficulty of installing the range hood body. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0085] Figure 1 A schematic structural diagram of the range hood provided in this embodiment;

[0086] Figure 2 A schematic structural diagram of the suspension device provided in this embodiment;

[0087] Figure 3 A schematic structural diagram of the ejection structure provided in this embodiment;

[0088] Figure 4 A schematic diagram of a first flow chart of the range hood leveling control method provided in this embodiment;

[0089] Figure 5 A side view of the range hood provided in this embodiment;

[0090] Figure 6 This is a schematic diagram of the angle of the range hood body relative to the wall provided in this embodiment;

[0091] Figure 7 A rear view of the range hood provided in this embodiment;

[0092] Figure 8 A schematic diagram of the angle of the range hood body provided in this embodiment relative to a third direction;

[0093] Figure 9 A schematic diagram of a first installation method of a range hood and a cabinet provided in this embodiment;

[0094] Figure 10 A schematic diagram of a second installation method of the range hood and the cabinet provided in this embodiment;

[0095] Figure 11 A schematic diagram of a first distance of the range hood in a first installation mode provided in this embodiment;

[0096] Figure 12 A schematic diagram of a first distance of the range hood in the second installation mode provided in this embodiment;

[0097] Figure 13 A second flow chart of the range hood leveling control method provided in this embodiment;

[0098] Figure 14 A schematic diagram of a second distance of the range hood in the first installation mode provided in this embodiment;

[0099] Figure 15 This is a schematic diagram of the second distance of the range hood in the second installation mode provided in this embodiment.

[0100] Icons: 010-range hood; 020-cabinet; 030-wall; 040-ceiling; 100-suspension device; 110-bracket; 111-bracket body; 112-first mounting part; 113-hook; 120-connecting part; 130-mounting seat; 131-mounting seat body; 132-second mounting part; 133-slot; 134-protrusion; 135-bearing; 140-first driving member; 141-output shaft; 150-transmission structure; 151-transmission rod; 1511-threaded section; 152-connecting block; 200-range hood body; 210-main unit; 211-hook hole; 220-smoke hood; 230-horizontal sensor; 240-first sensor; 250-second sensor; 300-ejection structure; 310-second driving member; 320-telescopic rod; 330-top. DETAILED DESCRIPTION

[0101] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0102] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0103] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0104] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0105] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0106] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0107] The overall structure, working principle and technical effects of the range hood 010 provided by the present invention, as well as the detailed steps, implementation principle and technical effects of the corresponding leveling control method are described in detail below through embodiments and in combination with the accompanying drawings.

[0108] Please refer to Figure 1 The range hood 010 provided by the present invention can be automatically leveled according to the installation conditions and daily usage conditions after installation.

[0109] Please refer to Figure 1 The present invention provides a range hood 010, comprising: a range hood body 200;

[0110] At least two suspension devices 100 are spaced apart and fixed to the wall 030. Output ends of the at least two suspension devices 100 are respectively connected to the left and right ends of the range hood body 200. The suspension devices 100 are used to drive the range hood body 200 to move in a first direction to make the range hood body 200 horizontal.

[0111] The horizontal sensor 230 is provided on the range hood body 200 . The horizontal sensor 230 is used to detect the horizontality of the range hood body 200 . The horizontal sensor 230 is communicatively connected to at least two suspension devices 100 .

[0112] It can be understood that by arranging a horizontal sensor 230 on the range hood body 200, the horizontal sensor 230 can detect and identify the horizontality and horizontal condition of the range hood body 200; by arranging at least two suspension devices 100 on the range hood body 200, when the horizontal sensor 230 detects that the range hood body 200 is not in a horizontal state, at least two suspension devices 100 can drive the range hood body 200 to move along the first direction, and automatically adjust the range hood body 200 up and down or automatically level it; this arrangement avoids the deviation of the range hood 010 due to slight vibrations generated by the operation of the motor or other reasons, ensures the flatness and beauty of the range hood body 200 and the range hood body 200 and the cabinet 020, improves the user experience, and also reduces the difficulty of installing the range hood body 200.

[0113] In this embodiment, the range hood 010 is installed and arranged in the direction of a three-dimensional coordinate system, wherein the first direction is the Z-axis direction, the second direction is the Y-axis direction, and the third direction may be the X-axis direction.

[0114] In this embodiment, the range hood 010 includes a range hood body 200 .

[0115] In this embodiment, the range hood body 200 includes a main unit 210 and a smoke collecting hood 220 . The main unit 210 is disposed above the smoke collecting hood 220 , and at least two suspension devices 100 are connected to the top of the main unit 210 .

[0116] In this embodiment, please refer to Figure 1 The horizontal sensor 230 is installed on the top of the smoke hood 220 and is located at the center line of the top surface of the smoke hood 220. The horizontal sensor 230 is used to detect the levelness of the range hood body 200. The horizontal sensor 230 can monitor the levelness of the range hood body 200 in real time and feed the real-time detected data back to the control module.

[0117] Optionally, the level sensor 230 may be a level. When the level reads data and converts the data into tilt angles in the X and Y directions, for example, if the bubble in the level is 1 mm off center, it corresponds to a tilt of 0.02 degrees of the range hood body 200 relative to the horizontal. Of course, in other embodiments, the level sensor 230 may also use a gyroscope to obtain the tilt angle of the range hood body 200 relative to the horizontal.

[0118] Alternatively, see Figure 1A horizontal sensor 230 is provided on the top of the smoke hood 220, and first sensors 240 are provided at the four vertices of the top of the smoke hood 220. The first sensors 240 are used to detect the distance between the range hood body 200 and the ceiling 040. The first sensors 240 may be distance measuring probes that can measure the distance between the range hood body 200 and the ceiling 040 in real time and feed the detected data back to the control module in real time.

[0119] Alternatively, see Figure 1 Second sensors 250 are provided at the four vertices of the bottom of the main unit 210. The second sensors 250 are used to detect the distance between the range hood body 200 and the adjacent cabinets 020. The main unit 210 of the range hood 010 is installed between two cabinets 020. The adjacent cabinets can be understood as cabinets adjacent to the range hood body.

[0120] The second sensor 250 may be a distance measuring probe; the second sensor 250 may measure the distance between the range hood body 200 and the adjacent cabinet 020 in real time, and the second sensor 250 may feed back the detected data to the control module in real time.

[0121] In this embodiment, the host 210 has a built-in control module, which is in communication with the horizontal sensor 230 , the first sensor 240 , the second sensor 250 , the first driving member 140 of the suspension device 100 , and the second driving member 310 of the ejection structure 300 .

[0122] In this embodiment, the range hood 010 includes a suspension device 100 .

[0123] In this embodiment, please refer to Figure 1 At least two suspension devices 100 are arranged at intervals and fixed on the wall 030, and the output ends of at least two suspension devices 100 are respectively connected to the left and right ends of the top of the range hood body 200. The suspension devices 100 are used to drive the range hood body 200 to move along the first direction to make the range hood body 200 horizontal.

[0124] In this embodiment, two suspension devices 100 are provided, spaced apart and fixed to the wall 030. The output ends of the two suspension devices 100 are connected to the back of the main unit 210. One suspension device 100 is connected to the top left end of the main unit 210, while the other is connected to the top right end of the main unit 210. Based on data received by the control module, the two suspension devices 100 can be adjusted to synchronously raise, lower, or adjust the range hood body 200. Of course, in other embodiments, a single, three, or other number of suspension devices 100 may be provided on the top of the range hood body 200.

[0125] In this embodiment, the output end of the suspension device 100 is connected to the main unit 210. Two hook holes 211 of equal height are provided on the back of the main unit 210, and the output ends of the two suspension devices 100 are respectively connected to the two hook holes 211. Of course, in other embodiments, the output end of the suspension device 100 can also be fixedly connected to the top of the main unit 210.

[0126] In this embodiment, please refer to Figure 2 The suspension device 100 includes a bracket 110, a mounting seat 130 and a transmission structure 150; the bracket 110 is connected to the range hood body 200, and a connecting portion 120 is provided on the bracket 110; the mounting seat 130 is installed on the wall 030, and a first driving member 140 is provided on the mounting seat 130; the first end of the transmission structure 150 is transmission-connected to the output end of the first driving member 140, and the second end of the transmission structure 150 is connected to the connecting portion 120, and the first driving member 140 drives the transmission structure 150 so that the transmission structure 150 drives the range hood body 200 to move along the first direction.

[0127] In this embodiment, please refer to Figure 2 The suspension device 100 includes a mounting base 130. The mounting base 130 includes a mounting base body 131, a second mounting portion 132 and a slot 133 provided on the mounting base body 131, wherein the first driving member 140, the second mounting portion 132 and the slot 133 are sequentially provided at the upper portion, the middle portion and the bottom portion of the mounting base body 131.

[0128] The mounting base body 131 is fixedly connected to the wall 030 and can be fixed to the wall 030 via multiple connecting parts. The front of the mounting base body 131 is provided with a protrusion 134, which extends upward along the bottom edge of the mounting base body 131. The back of the mounting base body 131 is provided with a groove opposite to the protrusion 134, and the groove 133 is provided on the protrusion 134. It is understood that the bracket 110 can be restrained within the protrusion 134 on the back side so that the bracket 110 can be restrained within the groove 133. This arrangement can prevent the bracket 110 from falling out and causing the range hood 010 to fall off. At the same time, the restraining bracket 110 prevents the bracket 110 and the range hood 010 from shaking during adjustment.

[0129] The second mounting portion 132 can be integrally formed or welded to the center of the mounting base body 131. The second mounting portion 132 is perpendicular to the wall 030 and defines a second opening. A bearing 135 is positioned within the second opening, coaxially arranged with the transmission rod 151 of the transmission structure 150. The transmission rod 151 of the transmission structure 150 is sleeved within the bearing 135. It is understood that when the transmission rod 151 rotates, the bearing 135 reduces the rotational force, allowing the transmission rod 151 to rotate more easily and flexibly.

[0130] The first drive member 140 can be fixed to the upper portion of the mounting base body 131 via a connecting member. Optionally, the first drive member 140 can be a worm reduction motor, wherein the first stage of the worm reduction motor adopts a worm gear structure, so that the first drive member 140 can obtain the maximum self-locking force.

[0131] In this embodiment, please refer to Figure 2 The suspension device 100 includes a bracket 110. The bracket 110 includes a bracket body 111 and a first mounting portion 112 disposed on the bracket body 111. The first mounting portion 112 is disposed above the bracket body 111, and the bottom of the bracket body 111 is connected to the range hood body 200. The bracket body 111 is disposed in a groove and is constrained within the groove between the wall 030 and the mounting base 130.

[0132] Among them, the first mounting portion 112 is arranged above the bracket body 111 and is located in the slot 133 of the mounting seat 130; the first mounting portion 112 is perpendicular to the wall 030, and a first opening is provided on the first mounting portion 112; the connecting portion 120 is arranged on the first mounting portion 112, and the first opening is coaxially arranged with the threaded hole.

[0133] Among them, a threaded hole is provided on the connecting part 120 and is coaxially arranged with the transmission rod 151. The threaded section 1511 is threadedly connected to the threaded hole. The first driving member 140 drives the transmission rod 151 to rotate, so that the rotating transmission rod 151 drives the range hood body 200 to move along the first direction.

[0134] Optionally, the connecting portion 120 may be a nut structure.

[0135] In this embodiment, please refer to Figure 2 The bracket 110 is mounted on the range hood body 200; therefore, a hook 113 is provided below the bracket body 111, which is mounted on the range hood body 200. A hook hole 211 is provided on the back of the main unit 210 of the range hood body 200, facing the hanging device 100. The bracket 110 is located between the range hood body 200 and the wall 030, and the hook 113 is disposed in the hook hole 211.

[0136] It is worth mentioning that when the hook hole 211 of the prior art is a rectangular hole, when the range hood body 200 is hung or when the range hood body 200 is leveled, the range hood body 200 will move laterally along the straight top edge of the rectangular hook hole 211, thereby affecting the aesthetics of the range hood body 200. Therefore, in this embodiment, the upper part of the hook hole 211 is an arc-shaped structure. It is understandable that, please refer to Figure 8 The present application adopts a hook hole 211 with an arc-shaped structure on the upper part. Whether the range hood body 200 is hung or when the range hood body 200 is leveled, the range hood body 200 can always be at the highest point, which can prevent the range hood body 200 from moving horizontally.

[0137] Optionally, the hook hole 211 may be an arch-shaped structure, a circular structure, a semicircular arc structure, etc.

[0138] Optionally, the hook 113 is a hook 113 with a cylindrical structure.

[0139] The bracket body 111 , the first mounting portion 112 and the hook 113 may be an integrally formed structure.

[0140] In this embodiment, the suspension device 100 includes a transmission structure 150. A first end of the transmission structure 150 is in driving connection with an output end of the first driving member 140, and a second end of the transmission structure 150 is connected to the connecting portion 120. The first driving member 140 drives the transmission structure 150, so that the transmission structure 150 drives the range hood body 200 to move in a first direction.

[0141] In this embodiment, please refer to Figure 2 The transmission structure 150 includes a transmission rod 151. The first end of the transmission rod 151 is fixedly connected to the output end of the first driving member 140. The second end of the transmission rod 151 is provided with a threaded section 1511. The connecting part 120 is provided with a threaded hole coaxially arranged with the transmission rod 151. The threaded section 1511 is threadedly connected to the threaded hole. The first driving member 140 drives the transmission rod 151 to rotate, so that the rotating transmission rod 151 drives the range hood body 200 to move along the first direction.

[0142] It can be understood that the first driving member 140 drives the transmission rod 151 to rotate, and the transmission rod 151 rotates around the threaded hole of the connecting part 120, so that the connecting part 120 moves linearly along the first direction relative to the rotating transmission rod 151, thereby causing the bracket 110 to drive the range hood body 200 to move up and down.

[0143] Optionally, the transmission rod 151 may be a screw rod.

[0144] In this embodiment, the transmission structure 150 also includes a connecting block 152, which is fixed to the first end of the transmission rod 151. The top of the connecting block 152 is provided with a slot with a polygonal cross-section. The output shaft 141 of the output end of the first driving member 140 is fixed in the slot with a limit position, thereby realizing the transmission connection between the output end of the first driving member 140 and the transmission structure 150.

[0145] In another embodiment, the first driving member 140 can also be a telescopic motor, and the transmission structure 150 is a straight rod. The output end of the telescopic motor drives the straight rod to perform telescopic movement, thereby causing the bracket 110 to drive the range hood body 200 to move up and down.

[0146] In this embodiment, the range hood 010 includes a ejection structure 300 .

[0147] In this embodiment, please refer to Figure 1 The range hood 010 includes at least two ejection structures 300, which are respectively arranged at the left and right ends of the bottom of the range hood body 200 and the output ends of the ejection structures 300 face the wall 030. The ejection structures 300 are used to drive the range hood body 200 to move along the second direction.

[0148] Alternatively, see Figure 3 The ejection structure 300 includes a second driving member 310 and a telescopic rod 320. The second driving member 310 is arranged at the bottom of the range hood body 200 and the output end of the second driving member 310 faces the wall 030. The output end of the second driving member 310 is transmission-connected to one end of the telescopic rod 320, and the other end of the telescopic rod 320 abuts against the wall 030; the output end of the second driving member 310 drives the telescopic rod 320 to move along the second direction, so that the range hood body 200 moves along the second direction.

[0149] It is understandable that the output end of the second driving member 310 can drive the telescopic rod 320 to extend and retract along the second direction, thereby adjusting the front and rear height of the range hood body 200.

[0150] Among them, one end of the telescopic rod 320 is transmission-connected to the output end of the second driving member 310, and the other end is provided with a spherical head 330; the head 330 can reduce the friction between the telescopic rod 320 and the wall, making it easier to rotate and adjust the telescopic rod 320.

[0151] The second driving member 310 may be a power motor and a reduction mechanism, and the first-stage reduction of the reduction mechanism adopts a worm gear mechanism, which can obtain a larger self-locking force.

[0152] The working principle and process of the range hood 010 provided in the embodiment of the present invention are as follows:

[0153] After the range hood 010 and the cabinet 020 are installed, the deviation value of the range hood body 200 relative to the horizontal line is calculated based on the data measured by the horizontal sensor 230. The suspension device 100 and the ejection structure 300 then drive the range hood body 200 to move according to the deviation value to automatically level the range hood body 200.

[0154] Then, based on the data measured by the first sensor 240 and / or the second sensor 250, the installation method of the range hood 010 and the cabinet 020 is determined, and based on the data measured by the first sensor 240 and / or the second sensor 250, the suspension device 100 and the ejection structure 300 are controlled to drive the range hood body 200 to move up or down at the same time, so that the range hood body 200 and the cabinet 020 are perfectly matched and flush.

[0155] Based on the above range hood 010, please refer to Figure 4 and Figure 13 The present invention also proposes a leveling control method for the range hood 010, which includes the following steps:

[0156] S1: Determine whether the range hood body 200 is horizontal based on the tilt angle of the range hood body 200 relative to the horizontal line detected by the horizontal sensor 230;

[0157] S2: If the range hood body 200 is not level, calculate the deviation value of the range hood body 200 relative to the horizontal line and automatically level the range hood body 200.

[0158] It is understandable that currently, when installing a range hood 010, the limited manual adjustment skills of the installation technician may cause the range hood body 200 to be misaligned with the bottom of the cabinet 020. Alternatively, when the range hood 010 is operating, slight vibrations of the range hood body 200 due to motor operation or other reasons may cause the range hood 010 to deviate. With the above-described leveling control method, the horizontal sensor 230 detects the tilt angle of the range hood body 200 relative to the horizontal and calculates the corresponding deviation value. The suspension device 100 automatically adjusts the range hood body 200 up and down or automatically levels it based on the deviation value, ensuring a smooth and beautiful alignment between the cabinet 020 and the range hood body 200, reducing the installation difficulty of the range hood body 200 and improving the user experience.

[0159] In this embodiment, step S1 specifically includes:

[0160] S11: If the tilt angle of the range hood body 200 relative to the horizontal line detected by the horizontal sensor 230 is not 0 degrees, the range hood body 200 is not level;

[0161] S12: If the tilt angle of the range hood body 200 relative to the horizontal line detected by the horizontal sensor 230 is 0 degrees, the range hood body 200 is horizontal.

[0162] In this embodiment, step S2 specifically includes:

[0163] S21: If the range hood body 200 is not level, the deviation of the range hood body 200 from the horizontal line is calculated and the ejection structure 300 is controlled to drive the range hood body 200 to automatically level.

[0164] S22: If the range hood body 200 is not level, calculate the deviation of the range hood body 200 from the horizontal line and control the suspension device 100 to drive the range hood body 200 to automatically level.

[0165] It is understandable that if the range hood body 200 is tilted relative to a third direction, the deviation value of the range hood body 200 relative to the third direction needs to be calculated and the suspension device 100 can be controlled to drive the range hood body 200 to automatically level.

[0166] If the range hood body 200 tilts relative to the second direction, the deviation value of the range hood body 200 relative to the second direction needs to be calculated and the ejection structure 300 extends or retracts the telescopic rod 320, thereby driving the range hood body 200 to automatically level.

[0167] In this embodiment, please refer to Figure 5 and Figure 6 , the steps of S21 specifically include:

[0168] S211: Calculating a first inclination angle Z of the range hood body 200 relative to a second direction based on the position of the horizontal sensor 230 on the range hood body 200;

[0169] S212: Calculate a first deviation value according to the first tilt angle Z, and control at least two ejection structures 300 to move the range hood body 200 along a second direction by the first deviation value, so that the range hood body 200 is level.

[0170] In this embodiment, the calculation formula 1 of the first deviation value W is: W=U*sinZ;

[0171] Wherein, W is the first deviation value, and U is the distance between the hook hole 211 and the ejection structure 300 . The hook hole is provided on the range hood body and is used for being hooked with the suspension device.

[0172] Understandably, please refer to Figure 5 and Figure 6A schematic diagram of the angle of the range hood body 200 relative to the wall 030 is made based on the side view of the range hood 010. If the range hood body 200 is tilted relative to the second direction, the top surface of the smoke hood 220 will have a first tilt angle Z relative to the second direction.

[0173] For details, please refer to Figure 5 and Figure 6 , the calculation process of the calculation formula 1 of the first deviation value W is as follows:

[0174] The default angle between the back of the smoke hood 220 and the bottom is a right angle; the angle between the back of the range hood body 200 and the wall 030 is V; and the angle between the back of the range hood body 200 and the second direction is O, meaning the angle between the back of the range hood body 200 and the Y axis is O. O and V are complementary angles, and O and Z are also complementary angles. Therefore, Equation 1: V = Z can be derived.

[0175] The angle between the back of the range hood body 200 and the wall 030 is V, the distance between the hook hole 211 and the ejection structure 300 is U, and the first deviation value is W. According to the sine function, sinV = W / U. Therefore, the first deviation value W can be derived as Equation 1: W = U * sinV.

[0176] Substituting the above equation 1 into the relational equation 1 of the first deviation value W, we can obtain the calculation formula 1 of the first deviation value W and the first tilt angle Z: W=U*sinZ.

[0177] In this embodiment, please refer to Figure 7 and Figure 8 , the steps of S22 specifically include:

[0178] S221: Calculating a second inclination angle S of the range hood body 200 relative to the third direction based on the position of the horizontal sensor 230 on the range hood body 200;

[0179] S222: Calculate a second deviation value according to the second tilt angle S, and control the suspension device 100 to move the range hood body 200 along the first direction by the second deviation value to make the range hood body 200 horizontal.

[0180] In this embodiment, the calculation formula 2 of the second deviation value R is: R=P*sinS;

[0181] Wherein, R is the second deviation value, P is the spacing distance between the two suspension devices 100, and S is the second tilt angle.

[0182] Understandably, please refer to Figure 7 and Figure 8, refer to the back view of the range hood 010 to make a schematic diagram of the angle of the range hood body 200 relative to the third direction. If the range hood body 200 is tilted relative to the third direction, the top surface of the host 210 will generate a second tilt angle S relative to the third direction.

[0183] Please refer to Figure 7 and Figure 8 The derivation process of calculation formula 2 of the second deviation value R is as follows: the second inclination angle of the top surface of the main body 210 relative to the third direction is S, that is, the second inclination angle of the top surface of the main body 210 relative to the X-axis is S; the distance between the hook hole 211 and the ejection structure 300 is U, and the second deviation value is R. According to the sine function, it can be seen that sinS=R / P.

[0184] Therefore, the calculation formula 2 of the second deviation value R can be obtained as: R=P*sinS.

[0185] In this embodiment, please refer to Figure 4 When the range hood 010 uses the first sensor 240 and the second sensor 250 to measure the distance between the range hood body 200 and the adjacent cabinet 020, the leveling control method of the range hood 010 further includes the following steps:

[0186] S3: If the range hood body 200 is horizontal, the first sensor 240 detects the distance between the top of the smoke collecting hood 220 of the range hood body 200 and the ceiling 040;

[0187] S4: Determine the installation mode of the range hood body 200 based on the distance between the top of the smoke collecting hood 220 of the range hood body 200 and the ceiling 040 detected by the first sensor 240;

[0188] S5: If the distance between the top of the smoke hood 220 and the ceiling 040 detected by the first sensor 240 is within the range value H, it is determined that the installation method of the range hood body 200 is the first installation method, and the height of the range hood body 200 is automatically adjusted;

[0189] S6: If the distance between the top of the smoke hood 220 and the ceiling 040 detected by the first sensor 240 is less than the range value H, it is determined that the installation method of the range hood body 200 is the second installation method, and the height of the range hood body 200 is automatically adjusted;

[0190] S7: Automatic leveling ends.

[0191] It can be understood that due to the different installation methods between the range hood body 200 and the cabinet 020, the installation method between the range hood body 200 and the cabinet 020 can be identified by detecting the distance between the range hood body 200 and the ceiling 040 based on the first sensor 240, and the range hood body 200 can be automatically adjusted in accordance with the installation method of the range hood body 200 and the cabinet 020 to make the range hood body 200 perfectly flush with the cabinet 020.

[0192] It is worth mentioning that H is the distance between the first sensor 240 provided on the top surface of the smoke hood 220 and the ceiling 040, which is a range value set according to conventional installation conditions. Among them, the four first sensors 240 are symmetrically arranged on the left and right sides of the top surface of the smoke hood 220, so theoretically the data measured by the first sensor 240 on the left and the first sensor 240 on the right are the same. Of course, it is also possible that the data measured by the first sensor 240 on the left and the first sensor 240 on the right are different depending on the actual installation situation; for example, if the data measured by the first sensor 240 on the left is within the range value H, and the data measured by the first sensor 240 on the right is not within the range value H, it is determined that there is no cabinet 020 on the right side of the smoke hood 220, and the data measured by the first sensor 240 on the left can be used.

[0193] In this embodiment, the range hood 010 is installed in the cabinet 020, and there are two different installation methods for the range hood 010 and the cabinet 020. According to the different installation methods of the range hood 010 and the cabinet 020, the range hood 010 can select different automatic leveling methods.

[0194] Please refer to Figure 9 In the first installation method, the range hood 010 is installed inside two cabinets 020, which are spaced apart. The main unit 210 of the range hood 010 is installed between the two cabinets 020. The top of the fume hood 220 of the range hood body 200 is flush with the bottom of the cabinets 020, with a uniform gap. The distance a between the two cabinets 020 is greater than the width b of the fume hood 220, and the depth d of the main unit 210 of the range hood body 200 is less than the depth c of the cabinets 020. This arrangement allows for easy adjustment of the range hood 010's front, back, left, and right movement relative to the two cabinets 020. It also allows the range hood 010 to be concealed within the two cabinets 020, creating an aesthetically pleasing appearance.

[0195] Please refer to Figure 10In the second installation method, the range hood 010 is installed inside two cabinets 020, which are spaced apart. The main unit 210 of the range hood 010 is installed between the two cabinets 020. The top of the fume hood 220 of the range hood body 200 is flush with the bottom of the cabinets 020, with a uniform gap. The width b of the fume hood 220 is greater than the distance e between the two cabinets 020, which is also greater than the width f of the main unit 210. The depth d of the main unit 210 of the range hood body 200 is less than the depth c of the cabinets 020. This arrangement allows the range hood 010 to be concealed between the two cabinets 020, creating an aesthetically pleasing appearance.

[0196] In this embodiment, please refer to Figure 4 and Figure 12 , the steps of S6 specifically include:

[0197] S61: At least two suspension devices 100 operate simultaneously to move the range hood body 200 upward in a first direction;

[0198] S62: The first sensor 240 detects the distance between the top of the smoke collecting hood 220 of the range hood body 200 and the bottom of the cabinet 020;

[0199] S63: Determine whether the at least two suspension devices 100 continue to operate based on the distance between the top of the smoke hood 220 and the bottom of the cabinet 020 detected by the first sensor 240;

[0200] S64: If the distance between the top of the smoke hood 220 and the bottom of the cabinet 020 is the preset installation gap value I, at least two suspension devices 100 stop moving upward at the same time;

[0201] S65: If the distance between the top of the smoke hood 220 and the ceiling 040 is greater than the preset installation gap value I, at least two suspension devices 100 continue to work simultaneously until the distance between the top of the smoke hood 220 and the bottom of the cabinet 020 reaches the preset installation gap value I.

[0202] Here, I is a preset installation gap value set based on the installation requirements and aesthetics of the range hood body 200 and the cabinet 020, and can also be understood as the distance between the top surface of the smoke hood 220 and the bottom surface of the cabinet 020. The preset installation gap value I can be 3mm, 4mm, 5mm, etc.

[0203] In this embodiment, please refer to Figure 4 and Figure 11 , the steps of S5 specifically include:

[0204] S51: The second sensor 250 detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020;

[0205] S52: Automatically adjust the height of the range hood body 200 according to the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0206] S53: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 is within the range value J, at least two suspension devices 100 move downward simultaneously;

[0207] S54: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 is greater than the range value J, at least two suspension devices 100 move upward simultaneously;

[0208] S55: The current installation position of the range hood body 200 is recorded as a base point, and at least two suspension devices 100 are simultaneously moved upward by a distance value K.

[0209] It is understood that in step S55, K is the distance between the second sensor 250 and the top of the fume hood 220. Since the second sensor 250 is voluminous and cannot be installed inside the top of the fume hood 220 due to structural reasons, a distance K is required. When at least two suspension devices 100 are simultaneously moved upward by the distance K, the top surface of the fume hood 220 can be flush with the bottom surface of the cabinet 020.

[0210] It is understood that J represents the distance between the side wall of the main unit 210 and the adjacent cabinet 020, which is a range value set based on conventional installation conditions. The four second sensors 250 are symmetrically arranged on the left and right walls of the main unit 210. Therefore, theoretically, the data measured by the second sensor 250 on the left and the second sensor 250 on the right are identical. Of course, depending on the actual installation conditions, the data measured by the second sensor 250 on the left and the second sensor 250 on the right may differ. For example, if the data measured by the second sensor 250 on the left is within the range J, while the data measured by the second sensor 250 on the right is not within the range J, it is determined that there is no cabinet 020 on the right side of the fume hood 220, and the data measured by the second sensor 250 on the left is sufficient.

[0211] In this embodiment, please refer to Figure 4 and Figure 11 , the steps of S53 specifically include:

[0212] S531: At least two suspension devices 100 move downward simultaneously;

[0213] S532: The second sensor 250 again detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020, and determines whether the at least two suspension devices 100 continue to operate based on the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0214] S533: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value J, the at least two suspension devices 100 continue to move downward simultaneously until the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J;

[0215] S534: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, at least two suspension devices 100 stop moving downward simultaneously.

[0216] It can be understood that in step S53, the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is in the range value J. Since the second sensor 250 is located at the bottom of the main unit 210 and can still detect the cabinet 020, it can be determined that the range hood 010 is hung too high relative to the cabinet 020. Therefore, the suspension device 100 is required to drive the range hood body 200 to move downward at the same time so that the range hood body 200 is flush with the cabinets 020 on both sides and perfectly matches.

[0217] In this embodiment, please refer to Figure 4 and Figure 11 , the steps of S54 specifically include:

[0218] S541: At least two suspension devices 100 move upward simultaneously;

[0219] S542: The second sensor 250 again detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020, and determines whether the at least two suspension devices 100 continue to operate based on the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0220] S543: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, the at least two suspension devices 100 continue to move upward simultaneously until the distance between the side wall of the fume hood 220 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value J;

[0221] S544: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value J, at least two suspension devices 100 stop moving upward at the same time.

[0222] It can be understood that in step S54, since the second sensor 250 is located at the bottom of the main unit 210 and the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, it is determined that the range hood 010 is hung too low relative to the cabinet 020. Therefore, the suspension device 100 is required to drive the range hood body 200 to move upward at the same time so that the range hood body 200 is flush with the cabinets 020 on both sides and perfectly matches.

[0223] In this embodiment, please refer to Figure 13 When the range hood 010 only uses the second sensor 250 to measure the distance between the range hood body 200 and the adjacent cabinet 020, the leveling control method of the range hood 010 further includes the following steps:

[0224] S8: If the range hood body 200 is horizontal, the second sensor 250 detects the distance between the side wall of the main unit 210 of the range hood body 200 and the adjacent cabinet 020;

[0225] S9: Automatically adjust the height of the range hood body 200 according to the distance between the side wall of the main unit 210 of the range hood body 200 and the adjacent cabinet 020 detected by the second sensor 250;

[0226] S10: Record the current installation position of the range hood body 200 as the base point, and simultaneously move the at least two suspension devices 100 upward by a distance value K;

[0227] S11: Automatic leveling ends;

[0228] It is understood that in step S10, K is the distance between the second sensor 250 and the top of the fume hood 220. Since the second sensor 250 is voluminous and cannot be installed inside the top of the fume hood 220 due to structural reasons, a distance K is required. When at least two suspension devices 100 are simultaneously moved upward by the distance K, the top surface of the fume hood 220 can be flush with the bottom surface of the cabinet 020.

[0229] In this embodiment, the step of S9 may include steps S91 to S95, steps S901 to S905, and steps S9001 to S9005.

[0230] In this embodiment, please refer to Figure 13 and Figure 14 , the steps of S9 specifically include:

[0231] S91: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 is within the range value J, it is determined that the installation method of the range hood body 200 is the first installation method;

[0232] S92: At least two suspension devices 100 move downward simultaneously;

[0233] S93: The second sensor 250 again detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020, and determines whether the at least two suspension devices 100 continue to operate based on the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0234] S94: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value J, the at least two suspension devices 100 continue to move downward simultaneously until the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J;

[0235] S95: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, at least two suspension devices 100 stop moving downward simultaneously.

[0236] It can be understood that in steps S91 to S95, the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is in the range value J. Since the second sensor 250 is located at the bottom of the main unit 210 and can still detect the cabinet 020, it can be determined that the range hood 010 is hung too high relative to the cabinet 020. Therefore, the suspension device 100 is required to drive the range hood body 200 to move downward at the same time so that the range hood body 200 is flush with the cabinets 020 on both sides and perfectly matches.

[0237] In this embodiment, please refer to Figure 13 and Figure 15 , the steps of S9 further specifically include:

[0238] S901: If the distance between the side wall of the main unit 210 of the range hood body 200 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value L, it is determined that the installation method of the range hood body 200 is the second installation method;

[0239] S902: At least two suspension devices 100 move downward simultaneously;

[0240] S903: The second sensor 250 again detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020, and determines whether the at least two suspension devices 100 continue to operate based on the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0241] S904: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value L, at least two suspension devices 100 continue to move downward simultaneously until the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value L;

[0242] S905: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value L, at least two suspension devices 100 stop moving downward simultaneously.

[0243] It can be understood that in steps S901 to S905, the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is in the range value L. Since the second sensor 250 is located at the bottom of the main unit 210 and can still detect the cabinet 020, it can be determined that the range hood 010 is hung too high relative to the cabinet 020. Therefore, the suspension device 100 is required to drive the range hood body 200 to move downward at the same time so that the range hood body 200 is flush with the cabinets 020 on both sides and perfectly matches.

[0244] In this embodiment, please refer to Figure 13 and Figure 15 , the steps of S9 further specifically include:

[0245] S9001: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, the height of the range hood body 200 is automatically adjusted;

[0246] S9002: At least two suspension devices 100 move upward simultaneously;

[0247] S9003: The second sensor 250 again detects the distance between the side wall of the main unit 210 and the adjacent cabinet 020, and determines the installation mode of the range hood body 200 based on the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250;

[0248] S9004: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value J, the range hood body 200 is determined to be installed in the first installation mode, and at least two suspension devices 100 simultaneously stop moving upward;

[0249] S9005: If the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is within the range value L, it is determined that the installation method of the range hood body 200 is the second installation method, and at least two suspension devices 100 stop moving upward at the same time.

[0250] It is worth mentioning that the determination rule regarding the range value J in step S9 is the same as the determination rule regarding the range value J in step S4 .

[0251] It is worth mentioning that L is the distance between the side wall of the main unit 210 and the adjacent cabinet 020, which is a range value set according to conventional installation conditions. The four second sensors 250 are symmetrically arranged on the left and right walls of the main unit 210. Therefore, in theory, the data measured by the second sensor 250 on the left and the second sensor 250 on the right are the same. Of course, depending on the actual installation conditions, the data measured by the second sensor 250 on the left and the second sensor 250 on the right may be different. For example, if the data measured by the second sensor 250 on the left is within the range value L, and the data measured by the second sensor 250 on the right is not within the range value L, it is determined that there is no cabinet 020 on the right side of the smoke hood 220, and the data measured by the second sensor 250 on the left is sufficient.

[0252] It can be understood that in steps S9001 to S9004, since the second sensor 250 is located at the bottom of the main unit 210 and the distance between the side wall of the main unit 210 and the adjacent cabinet 020 detected by the second sensor 250 is greater than the range value J, it is determined that the range hood 010 is hung too low relative to the cabinet 020. Therefore, the suspension device 100 is required to drive the range hood body 200 to move upward at the same time so that the range hood body 200 is flush with the cabinets 020 on both sides and perfectly matches them.

[0253] In summary, the embodiment of the present invention provides a range hood 010 and a leveling control method thereof. By arranging a horizontal sensor 230 on the range hood body 200, the horizontal sensor 230 can detect and identify the horizontality of the range hood body 200 and its horizontal condition; by arranging at least two suspension devices 100 on the range hood body 200, when the horizontal sensor 230 detects that the range hood body 200 is not in a horizontal state, at least two suspension devices 100 can drive the range hood body 200 to move along the first direction, and the range hood body 200 can be automatically adjusted up and down or automatically leveled; such an arrangement avoids the deviation of the range hood 010 due to slight vibrations generated by the operation of the motor or other reasons, ensures the flatness and beauty of the range hood body 200 and the range hood body 200 and the cabinet 020, improves the user experience, and reduces the difficulty of installing the range hood body 200.

[0254] Furthermore, by setting up a ejection structure 300 to drive the range hood body 200 to move along the second direction, the front and rear heights of the range hood body 200 can be adjusted; by setting up at least two suspension devices 100 to drive the range hood body 200 to move along the first direction, the left and right heights of the range hood body 200 can be adjusted.

[0255] Furthermore, by arranging a first sensor 240 and a second sensor 250 on the range hood 010 and combining them with the ejection structure 300 and the suspension device 100, automatic leveling of the range hood body 200 and the range hood body 200 and the cabinet 020 can be achieved under the logical judgment and control of a preset leveling control method.

[0256] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: Range hood body (200); At least two suspension devices (100), the at least two suspension devices (100) are spaced apart and fixed on the wall (030), the output ends of the at least two suspension devices (100) are respectively connected to the left and right ends of the range hood body (200), and the suspension devices (100) are used to drive the range hood body (200) to move along a first direction so as to make the range hood body (200) horizontal; A horizontal sensor (230) is provided on the range hood body (200), the horizontal sensor (230) is used to detect the horizontality of the range hood body (200), and the horizontal sensor (230) is communicatively connected to the at least two suspension devices (100).

2. The range hood according to claim 1, characterized in that: The range hood (010) further comprises at least two ejection structures (300), wherein the at least two ejection structures (300) are respectively arranged at the left and right ends of the range hood body (200), and the output ends of the ejection structures (300) face the wall (030), and the ejection structures (300) are used to drive the range hood body (200) to move along the second direction.

3. The range hood according to claim 1, characterized in that: The range hood body (200) comprises a main unit (210) and a smoke collecting hood (220); the main unit (210) is arranged above the smoke collecting hood (220); the output ends of the at least two suspension devices (100) are connected to the top of the main unit (210); the horizontal sensor (230) is arranged on the top of the smoke collecting hood (220); the horizontal sensor (230) is located at the center line of the top surface of the smoke collecting hood (220); A first sensor (240) is provided at each of the four vertices of the top of the smoke collecting hood (220), and the first sensor (240) is used to detect the distance between the range hood body (200) and the ceiling (040); Second sensors (250) are provided at the four vertices of the bottom of the main unit (210), and the second sensors (250) are used to detect the distance between the range hood body (200) and an adjacent cabinet (020); The host (210) is internally provided with a control module, and the control module is communicatively connected with the horizontal sensor (230), the first sensor (240), the second sensor (250) and the suspension device (100).

4. A range hood leveling control method, characterized in that: The range hood according to any one of claims 1 to 3; The leveling control method comprises the following steps: judging whether the range hood body (200) is horizontal based on the tilt angle of the range hood body (200) relative to the horizontal line detected by the horizontal sensor (230); If the range hood body (200) is not level, a deviation value of the range hood body (200) relative to a horizontal line is calculated and the range hood body (200) is automatically leveled.

5. The range hood leveling control method according to claim 4, characterized in that: The step of calculating the deviation of the range hood body (200) from the horizontal line and automatically leveling the range hood body (200) if the range hood body (200) is not horizontal specifically includes: Calculating a first inclination angle Z of the range hood body (200) relative to a second direction based on the position of the horizontal sensor (230) on the range hood body (200); Calculating a first deviation value based on the first inclination angle Z, and controlling at least two ejection structures (300) to drive the range hood body (200) to move along a second direction by the first deviation value, so as to make the range hood body (200) horizontal; Wherein, the calculation formula 1 of the first deviation value W is: W=U*sinZ; Wherein, W is the first deviation value, and U is the distance between the hook hole (211) and the ejection structure (300), wherein the hook hole is provided on the range hood body and is used for being hooked to the suspension device.

6. The range hood leveling control method according to claim 4, characterized in that: Calculating a second inclination angle S of the range hood body (200) relative to a third direction based on the position of the horizontal sensor (230) on the range hood body (200); Calculating a second deviation value based on the second tilt angle S, and controlling the suspension device (100) to drive the range hood body (200) to move along the first direction by the second deviation value, so as to make the range hood body (200) horizontal; Wherein, the calculation formula 2 of the second deviation value R is: R=P*sinS; Wherein, R is the second deviation value, P is the spacing distance between the two suspension devices (100), and S is the second inclination angle.

7. The range hood leveling control method according to claim 4, characterized in that: The leveling control method further comprises the following steps: If the range hood body (200) is horizontal, the first sensor (240) detects the distance between the top of the smoke collecting hood (220) of the range hood body (200) and the suspended ceiling (040); Determining the installation method of the range hood (200) based on the distance between the top of the smoke collecting hood (220) of the range hood body (200) and the suspended ceiling (040) detected by the first sensor (240); If the distance between the top of the smoke hood (220) and the suspended ceiling (040) detected by the first sensor (240) is within a range value H, it is determined that the installation method of the range hood body (200) is the first installation method, and the height of the range hood body (200) is automatically adjusted; If the distance between the top of the smoke hood (220) and the suspended ceiling (040) detected by the first sensor (240) is less than a range value H, it is determined that the installation method of the range hood body (200) is the second installation method, and the height of the range hood body (200) is automatically adjusted; Automatic leveling ends; Wherein, the first installation mode of the range hood body (200) is as follows: cabinets (020) are provided on both sides of the range hood body (200), the distance between the two cabinets (020) is greater than the width of the smoke collecting hood (220), and the depth of the main unit (210) is less than the depth of the cabinets (020); A second installation method of the range hood body (200) is as follows: cabinets (020) are provided on both sides of the range hood body (200), the distance between the two cabinets (020) is smaller than the width of the smoke hood (220), and the distance between the two cabinets (020) is larger than the width of the main unit (210).

8. The range hood leveling control method according to claim 7, characterized in that: If the distance between the top of the smoke hood (220) and the suspended ceiling (040) detected by the first sensor (240) is less than a range value H, then it is determined that the installation method of the range hood body (200) is the second installation method, and the steps of automatically adjusting the height of the range hood body (200) specifically include: The at least two suspension devices (100) operate simultaneously to enable the range hood body (200) to move upward in a first direction; The first sensor (240) detects the distance between the top of the smoke collecting hood (220) of the range hood body (200) and the bottom of the cabinet (020); determining whether the at least two suspension devices (100) continue to operate based on the distance between the top of the smoke hood (220) and the bottom of the cabinet (020) detected by the first sensor (240); If the distance between the top of the smoke hood (220) and the bottom of the cabinet (020) is a preset installation gap value I, the at least two suspension devices (100) simultaneously stop moving and move upward; If the distance between the top of the fume hood (220) and the suspended ceiling (040) is greater than a preset installation gap value I, the at least two suspension devices (100) continue to operate simultaneously until the distance between the top of the fume hood (220) and the bottom of the cabinet (020) reaches the preset installation gap value I; And / or, if the distance between the top of the smoke hood (220) and the suspended ceiling (040) detected by the first sensor (240) is within a range value H, then determining that the installation method of the range hood body (200) is the first installation method, and automatically adjusting the height of the range hood body (200) specifically includes: A second sensor (250) detects the distance between the side wall of the main unit (210) and the adjacent cabinet (020); Automatically adjusting the height of the range hood body (200) based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main machine (210) and the adjacent cabinet (020) is within a range value J, the at least two suspension devices (100) move downward simultaneously; If the distance between the side wall of the main machine (210) and the adjacent cabinet (020) is greater than the range value J, the at least two suspension devices (100) move upward simultaneously; Recording the current installation position of the range hood body (200) as a base point, the at least two suspension devices (100) simultaneously move upward by a distance value K; Wherein, K is the distance value between the second sensor (250) and the top of the smoke hood (220).

9. The range hood leveling control method according to claim 8, characterized in that: If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) is within a range value J, the step of simultaneously moving the at least two suspension devices (100) downward specifically includes: The at least two suspension devices (100) move downward simultaneously; The second sensor (250) detects the distance between the side wall of the main unit (210) and the adjacent cabinet (020) again, and determines whether the at least two suspension devices (100) continue to operate based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value J, the at least two suspension devices (100) continue to move downward simultaneously until the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than the range value J; If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than a range value J, the at least two suspension devices (100) simultaneously stop moving downward; Alternatively, if the distance between the side wall of the main unit (210) and the adjacent cabinet (020) is greater than the range value J, the step of simultaneously moving the at least two suspension devices (100) upwards specifically includes: The at least two suspension devices (100) move upward simultaneously; The second sensor (250) detects the distance between the side wall of the main unit (210) and the adjacent cabinet (020) again, and determines whether the at least two suspension devices (100) continue to operate based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than a range value J, the at least two suspension devices (100) continue to move upward simultaneously until the distance between the side wall of the fume hood (220) and the adjacent cabinet (020) detected by the second sensor (250) is within the range value J; If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value J, the at least two suspension devices (100) stop moving upward simultaneously.

10. The range hood leveling control method according to claim 4, characterized in that: The leveling control method further comprises the following steps: If the range hood body (200) is horizontal, the second sensor (250) detects the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020); Automatically adjusting the height of the range hood body (200) based on the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020) detected by the second sensor (250); Recording the current installation position of the range hood body (200) as a base point, the at least two suspension devices (100) simultaneously move upward by a distance value K; Automatic leveling ends; Wherein, K is the distance between the second sensor (250) and the top of the smoke hood (220); The step of automatically adjusting the height of the range hood body (200) based on the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020) detected by the second sensor (250) specifically comprises: If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) is within a range value J, it is determined that the installation method of the range hood body (200) is the first installation method; The at least two suspension devices (100) move downward simultaneously; The second sensor (250) detects the distance between the side wall of the main unit (210) and the adjacent cabinet (020) again, and determines whether the at least two suspension devices (100) continue to operate based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value J, the at least two suspension devices (100) continue to move downward simultaneously until the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than the range value J; If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than a range value J, the at least two suspension devices (100) simultaneously stop moving downward; Alternatively, the step of automatically adjusting the height of the range hood body (200) based on the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020) detected by the second sensor (250) further includes: If the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value L, it is determined that the installation method of the range hood body (200) is the second installation method; The at least two suspension devices (100) move downward simultaneously; The second sensor (250) detects the distance between the side wall of the main unit (210) and the adjacent cabinet (020) again, and determines whether the at least two suspension devices (100) continue to operate based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value L, the at least two suspension devices (100) continue to move downward simultaneously until the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than the range value L; If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than a range value L, the at least two suspension devices (100) simultaneously stop moving downward; Alternatively, the step of automatically adjusting the height of the range hood body (200) based on the distance between the side wall of the main unit (210) of the range hood body (200) and the adjacent cabinet (020) detected by the second sensor (250) further includes: If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is greater than a range value J, the height of the range hood body (200) is automatically adjusted; The at least two suspension devices (100) move upward simultaneously; The second sensor (250) detects again the distance between the side wall of the main unit (210) and the adjacent cabinet (020), and determines the installation mode of the range hood body (200) based on the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250); If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within a range value J, it is determined that the installation method of the range hood body (200) is the first installation method, and the at least two suspension devices (100) simultaneously stop moving upward; If the distance between the side wall of the main unit (210) and the adjacent cabinet (020) detected by the second sensor (250) is within the range value L, it is determined that the installation method of the range hood body (200) is the second installation method, and the at least two suspension devices (100) stop moving upward at the same time.

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