Range hood

Abstract

The utility model relates to a range hood, which comprises a casing, an oil cup, an oil inlet pipe, an oil outlet pipe, an oil outlet pipe, an oil outlet pipe, an oil inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe, the oil cup is integrally strip-shaped, and two ends of the oil cup in the length direction are connected to the bottom of the casing through elastic telescopic mounting structures; the oil cup leveling device is arranged on the machine shell and can directly or indirectly apply force to the two ends of the oil cup in the vertical direction so as to adjust the relative height of the two ends of the oil cup. The controller can control the oil cup leveling device to move to adjust the oil cup to be in a horizontal or approximately horizontal state according to height signals, transmitted by the first distance detection device and the second distance detection device, of the two ends of the oil cup. The oil cup has the advantages that the oil cup can be adjusted in time when the oil cup inclines in the oil stain receiving process, and the situation that the stored oil stain amount is reduced due to inclination of the oil cup is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially with hidden oil cup's range hood. BACKGROUND

[0002] Range hood is a kind of kitchen appliance that purifies kitchen environment.The oil cup is generally arranged at the bottom of the casing of the existing range hood to receive the oil stains flowing from the casing.Most of the oil cups of range hood are arranged exposedly, and the outer wall of the oil cup is easy to adhere oil, which affects the appearance.Therefore, some range hoods hide the oil cup in the casing, such as the Chinese patent application No.CN202210966905.9 (application publication No.CN117628551A), which discloses a hidden range hood.The bottom end of the body of the range hood is provided with an elastic shielding member, and the oil cup can be elastically deformed with the change of the amount of oil stains in the oil cup.The empty oil cup is hung on the hanging member, and the oil cup is located in the space and is shielded by the shielding member in the horizontal direction.When the oil in the oil cup reaches a certain amount, the oil cup moves downward at least partially beyond the bottom edge of the shielding member under the action of gravity.

[0003] However, the above-mentioned hidden range hood still has some deficiencies: the stove at the bottom of the range hood generally has left and right two, and one of them is usually heavily used by the family when cooking, so that when the range hood absorbs oil fume on one side, the heavily used side is more likely to accumulate oil, and the oil cup accumulates oil, which is easy to cause the situation of more on one side and less on the other side, so as to cause the oil cup shape to be in the situation of one side down, so that the oil cup presents a skewed state, reduces the amount of oil stored in the oil cup, and misleads the user, and appears the situation of mistakenly thinking that the oil cup needs to be cleaned.

[0004] Therefore, the existing range hood still needs to be further improved. INVENTION CONTENTS

[0005] The utility model solves the technical problem that the existing technology provides a range hood that can effectively improve the oil cup skewing during use.

[0006] The utility model solves the above technical problem by adopting the following technical scheme: a range hood, comprising:

[0007] Casing:

[0008] Oil cup, which is in the shape of a long strip, both ends of the length direction of the oil cup are connected to the bottom of the casing by elastic extension and contraction installation structure, and when the amount of oil stains in the oil cup increases, the oil cup moves downward relative to the bottom of the casing;

[0009] First distance detection device, for detecting the height of one end of the oil cup;

[0010] a second distance detecting device for detecting the height of the other end of the oil cup;

[0011] an oil cup leveling device provided on the casing and capable of directly or indirectly applying force to the two ends of the oil cup in the up-down direction to adjust the relative height of the two ends of the oil cup;

[0012] The first distance detecting device, the second distance detecting device and the oil cup leveling device are electrically connected with the controller of the range hood, and the controller can control the oil cup leveling device to act to adjust the oil cup to a horizontal or near-horizontal state according to the height signals of the two ends of the oil cup transmitted by the first distance detecting device and the second distance detecting device.

[0013] The "directly" in the above "the oil cup leveling device can directly or indirectly apply force to the two ends of the oil cup in the up-down direction" can be understood as that the oil cup leveling device is in contact with the two ends of the oil cup and applies force, and the "indirectly" can be understood as that the oil cup leveling device is not in direct contact with the two ends of the oil cup but adjusts the height of the ends of the oil cup by acting on other components (such as components for hanging the oil cup).

[0014] The "near-horizontal state" in the above can be understood as that the extension direction of the oil cup is slightly inclined (the inclination angle is not more than 5°) relative to the horizontal direction.

[0015] The "height of the end of the oil cup" detected by the first distance detecting device and the second distance detecting device can refer to the distance between the end of the oil cup and a reference surface such as the ground or the cooking table top, or can refer to the distance in the vertical direction between the end of the oil cup and the casing (which can be the bottom of the casing).

[0016] The first distance detecting device and the second distance detecting device can identify the height of the two ends of the oil cup, and when the oil cup is inclined, the controller can control the oil cup leveling device to act to adjust the oil cup to a horizontal or near-horizontal state according to the height signals of the two ends of the oil cup transmitted by the first distance detecting device and the second distance detecting device, so as to timely adjust the oil cup when it is inclined during receiving oil stains, avoid the reduction of the amount of stored oil stains due to the inclination of the oil cup, and improve the user experience.

[0017] In order to simplify the elastic extension installation structure and ensure the firmness of the installation of the oil cup, the elastic extension installation structure comprises:

[0018] a support frame movably provided on the bottom wall of the casing, the support frame comprising a support body and a connecting piece provided on the support body, and the oil cup is detachably connected to the connecting piece;

[0019] The first elastic member acts on the support frame and makes the support frame always have a tendency to move upward;

[0020] The oil cup leveling device can act on the support frame and exert a force in the up-down direction to adjust the relative height of the two ends of the oil cup.

[0021] It is conceivable that the elastic telescopic mounting structure can also be achieved by directly suspending a spring or tension spring at the two ends of the oil cup.

[0022] In order to avoid the problem of front and rear tilting of the oil cup and further ensure the stability of the oil cup after installation, the support body includes two vertically extending vertical rod parts and a cross rod part connected between the top ends of the two vertical rod parts. The bottom wall of the cabinet is provided with two limit cylinders arranged side by side and extending upward on the side wall inside the cabinet. The lower ends of the two vertical rod parts are respectively inserted into the two limit cylinders. The first elastic member is a spring, and there are two corresponding springs. The two springs are respectively arranged in the two limit cylinders and are sleeved outside the corresponding vertical rod parts, and form upward support to the vertical rod parts.

[0023] As an improvement, the connecting piece extends downward from the cross rod part of the support body and is provided at the bottom end with a connecting part for connecting with the oil cup. The bottom wall of the cabinet is provided with a gap opening for the connecting piece to pass through.

[0024] Further improvement, the connecting part of the connecting piece has a front and rear extending slot, and the top sides of the oil cup are respectively provided with an insert piece capable of being inserted into the corresponding slot of the connecting piece.

[0025] In order to avoid the problem that the insert piece of the oil cup easily comes out of the slot, the insert piece of the oil cup is provided with a limiting recess, and the connecting part of the connecting piece is provided with a second elastic member and a limiting protruding buckle capable of being inserted into the slot and retracted. The second elastic member acts on the limiting protruding buckle and makes the limiting protruding buckle always have a tendency to move into the slot.

[0026] In order to not interfere with the up-down free movement of the support frame, the oil cup leveling device includes two electric push rods corresponding to the two elastic telescopic mounting structures. The telescopic rod of the electric push rod can be extended downward and retracted upward. The support body is also provided with an upward extending connecting rod. The connecting rod is connected with the telescopic rod in a sleeved manner and can slide relatively in the up-down direction. The connecting rod or the telescopic rod is further provided with a limiting cooperation structure capable of limiting the up-down movement of the two, so that the telescopic rod of the electric push rod can drive the connecting rod to move upward or downward. It is conceivable that the driving source of the oil cup leveling device is not limited to the above-mentioned "electric push rod", but can also be replaced by a push rod structure driven by gas or hydraulic pressure.

[0027] As an improvement, the telescopic rod has an axially hollow mounting slide, the inner wall of the mounting slide is provided with a first limiting stop flange and a second limiting stop flange which are arranged in an upper and lower interval and extend radially inward, the connecting rod extends into the telescopic rod and forms a third limiting stop flange which extends radially outward at the upper end, during the upward movement of the telescopic rod, the lower first limiting stop flange abuts below the third limiting stop flange to drive the connecting rod to move upward, and during the downward movement of the telescopic rod, the upper second limiting stop flange abuts above the third limiting stop flange to drive the connecting rod to move downward. The first limiting stop flange, the second limiting stop flange and the third limiting stop flange constitute the limiting fitting structure.

[0028] In order to hide the oil cup and avoid the oil fume generated during cooking from adhering to the outer wall of the oil cup, the front side of the cabinet is provided with a panel, at least the lower part of the panel is lower than the bottom wall of the cabinet to form a shielding part, the oil cup has a hidden state hidden behind the shielding part and a revealed state in which at least part of the oil cup is revealed from below the shielding part as the amount of oil dirt in the oil cup increases. As the amount of oil dirt in the oil cup increases, the oil cup moves downward to be revealed, and the degree of revelation of the oil cup can also be used as a reference for the amount of oil dirt in the oil cup, and it is convenient for the user to hold and disassemble the oil cup for cleaning.

[0029] In order to facilitate the installation of the disassembled oil cup and automatically reset to the hidden state after the empty oil cup is installed in place, when the first distance detection device and the second distance detection device identify that the vertical distance of the two ends of the oil cup relative to the bottom of the cabinet is greater than the first set value, the controller controls the oil cup leveling device to act to press down the support frame so that the support frame is in a low position.

[0030] When the first distance detection device and the second distance detection device identify that the vertical distance of the two ends of the oil cup relative to the bottom of the cabinet is less than or equal to the first set value, the controller controls the oil cup leveling device to act to release the downward pressure on the support frame.

[0031] As an improvement, the first distance detection device and the second distance detection device are ultrasonic sensors or infrared sensors or laser sensors.

[0032] Compared with the prior art, the oil cup leveling device and the elastic telescopic mounting structure have the advantages that: the first distance detection device and the second distance detection device can identify the height of the two end portions of the oil cup, when the oil cup is inclined, the controller can control the oil cup leveling device to act according to the height signals of the two end portions of the oil cup transmitted by the first distance detection device and the second distance detection device, so that the oil cup is adjusted to a horizontal or nearly horizontal state, thereby timely adjusting the oil cup when the oil cup is inclined during the process of receiving oil stains, avoiding the reduction of the amount of stored oil stains due to the inclination of the oil cup, and improving the use experience of users. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a vertical sectional view of the range hood of the utility model embodiment along the front-rear direction (the oil cup is in a hidden state);

[0034] Figure 2 It is a vertical sectional view of the range hood of the utility model embodiment along the front-rear direction (the oil cup is in a hidden state);

[0035] Figure 3 It is a three-dimensional structure schematic diagram of the oil cup leveling device and the elastic telescopic mounting structure of the right side of the inside of the casing of the range hood of the utility model embodiment and the mounting cooperation of the casing;

[0036] Figure 4 It is a three-dimensional structure schematic diagram of the oil cup leveling device and the elastic telescopic mounting structure of the right side of the inside of the casing of the range hood of the utility model embodiment and the mounting cooperation of the casing;

[0037] Figure 5 It is Figure 4 It is a vertical sectional view of the oil cup leveling device and the elastic telescopic mounting structure;

[0038] Figure 6 It is a three-dimensional structure schematic diagram of the range hood of the utility model embodiment after part of the structure of the casing is omitted;

[0039] Figure 7 It is a structure schematic diagram of the oil cup in a horizontal state of the utility model embodiment;

[0040] Figure 8 It is a structure schematic diagram of the oil cup in an inclined state of the utility model embodiment;

[0041] Figure 9 It is a structure schematic diagram of the oil cup in a taken-down state of the utility model embodiment. DETAILED DESCRIPTION

[0042] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0043] In the description and claims of the present application, terms are used to describe various example structures and elements of the present application as set forth in the specification and claims below. The description and claims herein provide one or more examples by way of example, and the use of these examples herein is merely for illustrative purposes and is not meant to limit the scope of the application in any way. The terms used in the description and claims herein are for the purpose of describing the examples and are not intended to limit the application in any way. For example, the terms "front," "back," "up," "down," "right," "left," "side," "top," "bottom," and the like as can be referenced herein merely describe examples as oriented in the examples as presented in the figures. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The terms "coupled" and "coupling" as can be used herein refer to either a direct connection or an indirect connection or an indirect connection through one or more intervening components or layers. The term "or" as can be used herein means "and / or" unless specifically indicated otherwise. The term "set" as can be used herein means one or more, unless otherwise indicated. The term "plurality" as can be used herein means two or more, unless otherwise indicated. The term "comprising" as can be used herein means "including, but not limited to," unless otherwise indicated.

[0044] Figures 1-9 A preferred embodiment of the range hood of the present application is shown. The range hood includes a housing 10 and a centrifugal fan (not shown) disposed within the housing 10. A front side wall of the housing 10 has an air inlet formed therein, through which external smoke can enter the housing 10. The centrifugal fan is disposed within the housing 10, and generates a negative pressure when in operation, so that external oil fume can be sucked into the housing 10 through the air inlet. The bottom of the smoke collecting hood is provided with an oil cup 2, which is a long strip extending left and right, and is used to receive oil stains flowing down from the smoke collecting hood.

[0045] The two ends of the oil cup 2 in the length direction are connected to the bottom of the housing 10 by elastic expansion mounting structures. When the amount of oil stains in the oil cup 2 increases, i.e. the overall weight of the oil cup 2 changes, the elastic expansion mounting structures of the two ends of the oil cup 2 will elastically expand and contract, so that the oil cup 2 can move up or down relative to the bottom of the housing 10.

[0046] The housing 10 is also provided with an oil cup leveling device, which can directly or indirectly apply a force to the two ends of the oil cup 2 in the up-down direction to adjust the relative height of the two ends of the oil cup 2.

[0047] Referring to Figure 6The bottom of the casing 10 is further provided with a first distance detection device 31 and a second distance detection device 32. The first distance detection device 31 is used to detect the height of one end of the oil cup 2. The second distance detection device 32 is used to detect the height of the other end of the oil cup 2. The height of the end of the oil cup 2 detected by the first distance detection device 31 and the second distance detection device 32 can refer to the distance between the end of the oil cup 2 and the ground or the cooking table top or other reference surface, or can refer to the distance between the end of the oil cup 2 and the casing 10 (for example, the bottom of the casing 10) in the vertical direction. The first distance detection device 31 and the second distance detection device 32 of the present embodiment can use ultrasonic sensors or infrared sensors or laser sensors. The sensing end of the corresponding sensor can be directed towards the oil cup 2 (specifically, the tab 21 or other components on the top of the oil cup 2), and is used to detect the distance between the end of the oil cup 2 and the bottom of the casing 10 in the vertical direction.

[0048] The first distance detection device 31, the second distance detection device 32 and the oil cup leveling device are electrically connected to the controller of the range hood. When the oil cup 2 is tilted, the controller can control the oil cup leveling device to act to adjust the oil cup 2 to a horizontal or near-horizontal state according to the height signals of the two ends of the oil cup 2 transmitted by the first distance detection device 31 and the second distance detection device 32, so as to timely adjust the oil cup 2 when it is tilted during the reception of oil stains, thereby avoiding the reduction of the amount of stored oil stains due to the tilting of the oil cup 2 and improving the user's experience. The above-mentioned "near-horizontal state" can be understood as a slight inclination (inclination angle not exceeding 5°) of the extension direction of the oil cup 2 relative to the horizontal direction.

[0049] Referring to Figures 3-5The elastic telescopic mounting structure comprises a support frame 50 and a first elastic member 52. The support frame 50 is movably arranged on the bottom wall of the casing 10 and comprises a support body and a connecting piece 513 arranged on the support body, and the oil cup 2 is detachably connected to the connecting piece 513. The support body comprises two vertically extending vertical rod portions 511 and a horizontal rod portion 512 connected between the top ends of the two vertical rod portions 511, the horizontal rod portion 512 extends in the front-rear direction, and the two vertical rod portions 511 are arranged in front of and behind each other. The bottom wall of the casing 10 is provided with two limiting cylinders 11 arranged side by side and extending upward on the side wall of the casing 10, and the lower ends of the two vertical rod portions 511 are respectively inserted into the two limiting cylinders 11. The first elastic member 52 is a spring, and there are two corresponding springs. The two springs are respectively arranged in the two limiting cylinders 11 and are sleeved outside the corresponding vertical rod portions 511. The lower end of the spring abuts against the limiting cylinder 11, and the upper end abuts against the vertical rod portion 511 (or the position where the vertical rod portion 511 and the horizontal rod portion 512 meet), thereby forming an upward support for the vertical rod portion 511, so that the support frame 50 (and the oil cup 2) always has a tendency to move upward. The connecting piece 513 extends downward from the middle of the horizontal rod portion 512 of the support body and is provided with a connecting portion 5131 at the bottom end for connecting the oil cup 2, and the bottom wall of the casing 10 is provided with a space opening 12 for the connecting piece 513 to pass through. The connecting portion 5131 of the connecting piece 513 is a buckle member with a front-rear extending slot 5132, and correspondingly, the top sides of the oil cup 2 are respectively provided with foldably extending insertion pieces 21. When the oil cup 2 moves forward or backward, the two insertion pieces 21 of the oil cup 2 can be respectively inserted into or detached from the slots 5132 of the left and right support frames 50.

[0050] The insertion piece 21 of the oil cup 2 is provided with a limiting recess 210 (not shown), the connecting portion 5131 of the connecting piece 513 is provided with a limiting protruding buckle 53 and a second elastic member 54 which can be correspondingly inserted into and retracted from the slot 5132. Specifically, the connecting portion 5131 of the connecting piece 513 has an installation hole extending upward and downward and penetrating through the slot 5132, and the limiting protruding buckle 53 is movably limited in the installation hole. The second elastic member 54 can be a spring arranged in the installation hole and abutting against the limiting protruding buckle 53, so that the limiting protruding buckle 53 always has a tendency to move into the slot 5132. After the insertion piece 21 of the oil cup 2 is inserted into the slot 5132 of the connecting piece 513, the limiting protruding buckle 53 can be correspondingly clamped into the limiting recess 210 of the insertion piece 21, so as to avoid the insertion piece 21 of the oil cup 2 from being easily detached from the slot 5132, thereby ensuring the stability of the installation of the oil cup 2.

[0051] The oil cup leveling device comprises two electric push rods 41 arranged at left and right intervals, and the two electric push rods 41 correspond to two elastic telescopic mounting structures respectively, that is, correspond to the left and right ends of the oil cup 2. The telescopic rod 42 of the electric push rod 41 can be extended downward and retracted upward, and the bracket body is further provided with an upward extending connecting rod 514, which is sleeved with the telescopic rod 42 and can slide relatively in the up-down direction. Since the connecting rod 514 can slide relative to the telescopic rod 42 of the electric push rod 41, when the weight of the oil cup 2 increases, the telescopic rod 42 will not limit the downward movement of the connecting rod 514. The connecting rod 514 or the telescopic rod 42 is further provided with a limiting cooperation structure which can limit the up-down movement of the two, so that the telescopic rod 42 of the electric push rod 41 can drive the connecting rod 514 to move upward or downward. In the preferred embodiment, the telescopic rod 42 has an axially hollow mounting slide 420, and the inner wall of the mounting slide 420 is provided with two first limiting flanges 421 and second limiting flanges 422 arranged at an interval upward and downward and extending radially inward. The connecting rod 514 is formed with a third limiting flange 5141 extending radially outward at the upper end, and the upper end of the oil cup 2 (that is, the third limiting flange 5141) extends into the telescopic rod 42 and is located between the first limiting flange 421 and the second limiting flange 422. During the upward movement of the telescopic rod 42 driven by the electric push rod 41, the first limiting flange 421 located below abuts against the third limiting flange 5141 below to drive the connecting rod 514 to move upward. During the downward movement of the telescopic rod 42 of the electric push rod 41, the second limiting flange 422 located above abuts against the third limiting flange 5141 above to drive the connecting rod 514 to move downward.

[0052] Referring to Figure 1 and Figure 2 , the front side of the shell 10 is provided with a panel 13, and the extension direction of the panel 13 is consistent with the overall extension direction of the front side wall of the shell 10. When the front side wall of the shell 10 extends vertically, the panel 13 is also designed to extend vertically, and when the front side wall of the shell 10 extends obliquely, the panel 13 is also designed to extend obliquely. Referring to Figure 1 and Figure 2, at least the lower part of the panel 13 is lower than the bottom wall of the cabinet 10 to form a shielding part 131, the oil cup 2 has a hidden state hidden behind the shielding part 131 and has an exposed state in which at least part of the oil cup 2 is exposed from below the shielding part 131 as the amount of oil in the oil cup 2 increases. Generally, when the oil cup 2 is in an empty state, the overall weight of the oil cup 2 is light, and under the action of the elastic force of the first elastic member 52, the oil cup 2 moves upward to be in the hidden state. In the hidden state of the oil cup 2, the oil fume generated during cooking can be prevented from adhering to the outer wall surface of the oil cup 2. As the amount of oil in the oil cup 2 increases, the oil cup 2 moves downward to be exposed, wherein the exposure degree of the oil cup 2 (i.e., the proportion of the part exposed downward to the overall oil cup 2) can also serve as a reference for the amount of oil in the oil cup 2, and at the same time, it is convenient for the user to hold and disassemble the oil cup 2 for cleaning.

[0053] The depth or height of the oil cup 2 as a whole is denoted as L2 (not shown). The first distance detection device 31 identifies the vertical distance of the left end of the oil cup 2 relative to the bottom of the cabinet 10 as D1, and the second distance detection device 32 identifies the vertical distance of the right end of the oil cup 2 relative to the bottom of the cabinet 10 as D2.

[0054] The control method of the oil cup 2 of the range hood of the embodiment is as follows:

[0055] Oil cup skewing: when the first distance sensor and the second distance detection device 32 identify that the vertical distances of the two ends of the oil cup 2 relative to the bottom of the cabinet 10 are not consistent, specifically: when |D2-D1|>L2 / 2, it means that the oil cup 2 is skewed, at this time, D2>D1, which means that the right end of the oil cup 2 is lower than the left end, the right electric push rod 41 acts to pull up the support frame 50 on that side upward, and if D2<D1, it means that the left end of the oil cup 2 is lower than the right end, the left electric push rod 41 acts to pull up the support frame 50 on that side upward, until the two ends of the oil cup 2 approach a horizontal state.

[0056] When the oil cup 2 is removed, the first distance sensor and the second distance detecting device 32 can identify that the vertical distance of the two ends of the oil cup 2 relative to the bottom of the machine shell 10 is greater than a first set value, which can be 2L2, that is, when D1>2L2 and D2>2L2, the left and right electric push rods 41 move downward, press the support frame 50 downward, and the connecting part 5131 of the support frame 50 for connecting the oil cup 2 is in a low position, which facilitates the user to put back the oil cup 2. After the user places the oil cup 2 on the two connecting parts 5131 of the support frame 50, the first distance sensor and the second distance detecting device 32 can identify that the vertical distance of the two ends of the oil cup 2 relative to the bottom of the machine shell 10 is less than or equal to the first set value, at which time the controller controls the electric push rod 41 to act and remove the downward pressure on the support frame 50, and the oil cup 2 is automatically reset upward to the hidden state under the action of the first elastic member 52.

[0057] The range hood of the embodiment can realize the hidden oil cup 2, avoid the reduction of the oil storage amount of the oil cup 2 due to the tilting of the oil cup 2, improve the appearance, and improve the user experience. After the user removes the oil cup 2, the buckle part of the oil cup 2 is in a low position, which makes it more convenient for the user to put back the oil cup 2. After the user puts back the oil cup 2, the oil cup 2 is automatically reset upward to the hidden state under the action of the first elastic member 52, which is more convenient and fast.

Claims

1. A range hood, comprising: Casing (10): The oil cup (2) is long and narrow. Both ends of the oil cup (2) along its length are connected to the bottom of the housing (10) through an elastic telescopic mounting structure. When the amount of oil in the oil cup (2) increases, the oil cup (2) moves downward relative to the bottom of the housing (10). Its features also include: A first distance detection device (31) is used to detect the height of one end of the oil cup (2); The second distance detection device (32) is used to detect the height of the other end of the oil cup (2); An oil cup leveling device is provided on the housing (10) and can directly or indirectly apply force to the two ends of the oil cup (2) in the vertical direction to adjust the relative height of the two ends of the oil cup (2); The first distance detection device (31), the second distance detection device (32), and the oil cup leveling device are all electrically connected to the controller of the range hood. The controller can control the oil cup leveling device to adjust the oil cup (2) to a horizontal or near-horizontal state based on the height signals of the two ends of the oil cup (2) transmitted by the first distance detection device (31) and the second distance detection device (32).

2. The range hood according to claim 1, characterized in that: The elastic telescopic installation structure includes: The support frame (50) is movably mounted on the bottom wall of the housing (10). The support frame (50) includes a support body and a connector (513) mounted on the support body. The oil cup (2) is detachably connected to the connector (513). The first elastic element (52) acts on the support frame (50) and makes the support frame (50) always have an upward tendency; The oil cup leveling device can act on the support frame (50) and apply force in the vertical direction to adjust the relative height of the two ends of the oil cup (2).

3. The range hood according to claim 2, characterized in that: The support body includes two vertically extending vertical rods (511) and a horizontal rod (512) connected between the top ends of the two vertical rods (511). The bottom wall of the housing (10) facing the inside of the housing (10) is provided with two parallel and upwardly extending limiting cylinders (11). The lower ends of the two vertical rods (511) are respectively inserted into the two limiting cylinders (11). The first elastic element (52) is a spring, and there are two corresponding springs. The two springs are respectively provided in the two limiting cylinders (11) and sleeved outside the corresponding vertical rods (511), and provide upward support for the vertical rods (511).

4. The range hood according to claim 3, characterized in that: The connector (513) extends downward from the crossbar portion (512) of the support body and has a connecting portion (5131) at the bottom end for connecting with the oil cup (2). The bottom wall of the housing (10) has a clearance opening (12) for the connector (513) to pass through.

5. The range hood according to claim 4, characterized in that: The connecting part (5131) of the connector (513) has a slot (5132) extending forward and backward, and the top sides of the oil cup (2) are respectively provided with inserts (21) that can be inserted into the slots (5132) of the corresponding connector (513).

6. The range hood according to claim 5, characterized in that: The insert (21) of the oil cup (2) is provided with a limiting recess (210), and the connecting part (5131) of the connector (513) is provided with a second elastic member (54) and a limiting protrusion (53) that can be inserted into the slot (5132) and retracted. The second elastic member (54) acts on the limiting protrusion (53) and makes the limiting protrusion (53) always have a tendency to move into the slot (5132).

7. The range hood according to claim 2, characterized in that: The oil cup leveling device includes two electric push rods (41) corresponding to the two elastic telescopic mounting structures. The telescopic rods (42) of the electric push rods (41) can extend downward and retract upward. The bracket body is also provided with an upwardly extending connecting rod (514). The connecting rod (514) is sleeved and connected to the telescopic rod (42) and can slide relative to each other in the vertical direction. A limiting fit structure is also provided between the connecting rod (514) and the telescopic rod (42) to limit the two in the vertical direction, so that the telescopic rod (42) of the electric push rod (41) can drive the connecting rod (514) to move upward or downward.

8. The range hood according to claim 7, characterized in that: The telescopic rod (42) has an axially hollow mounting slide (420). The inner wall of the mounting slide (420) is provided with two first limiting edges (421) and second limiting edges (422) that are arranged vertically and horizontally and extend radially inward. The connecting rod (514) extends into the telescopic rod (42) and forms a third limiting edge (5141) that extends radially outward at its upper end. During the upward movement of the telescopic rod (42), the lower first limiting edge (421) abuts against the lower part of the third limiting edge (5141) and drives the connecting rod (514) to move upward. During the downward movement of the telescopic rod (42), the upper second limiting edge (422) abuts against the upper part of the third limiting edge (5141) and drives the connecting rod (514) to move downward.

9. The range hood according to any one of claims 2 to 8, characterized in that: The front side of the housing (10) is provided with a panel (13), at least the lower part of which is lower than the bottom wall of the housing (10) to form a shielding part (131). The oil cup (2) has a hidden state hidden behind the shielding part (131) and an exposed state in which at least part of the oil cup (2) is exposed from below the shielding part (131) as the amount of oil in the oil cup (2) increases and moves downward.

10. The range hood according to claim 9, characterized in that: When the first distance detection device (31) and the second distance detection device (32) detect that the vertical distance between the two ends of the oil cup (2) and the bottom of the housing (10) is greater than the first set value, the controller controls the oil cup leveling device to press down the support frame (50) so that the support frame (50) is in a low position. When the first distance detection device (31) and the second distance detection device (32) detect that the vertical distance between the two ends of the oil cup (2) and the bottom of the housing (10) is less than or equal to the first set value, the controller controls the oil cup leveling device to release the downward pressure on the support frame (50).

11. The range hood according to any one of claims 1 to 8, characterized in that: The first distance detection device (31) and the second distance detection device (32) are ultrasonic sensors, infrared sensors, or laser sensors.

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