Range hood

Abstract

The oil fume machine provided by the embodiment of the application comprises a machine body assembly, a spraying assembly, the spraying assembly comprises a liquid supply pipe, a spraying pipe and a first nozzle, at least part of the spraying pipe is arranged in the machine body assembly, the spraying pipe is rotatably connected to the liquid supply pipe, and the first nozzle is connected to the spraying pipe. The spraying pipe of the oil fume machine provided by the embodiment of the application is rotatably connected to the liquid supply pipe, which greatly increases the spraying range of the first nozzle and improves the cleaning effect on the machine body assembly. On the other hand, the liquid flow sprayed by the first nozzle has a certain impact force, and the rotation of the spraying pipe can also make the liquid flow sprayed by the first nozzle have a centrifugal force. The centrifugal force and the impact force can generate a resultant force, so that the cleaning effect of the liquid flow on the machine body assembly is better, and it is particularly beneficial to remove oil stains attached to the inner wall of the machine body assembly and reduce the peculiar smell of the oil fume machine.

Description

Technical Field

[0001] This application relates to the field of kitchen appliances technology, and more particularly to a range hood. Background Technology

[0002] Cleaning range hoods has always been a pain point in cooking. Currently, most technologies clean range hoods using steam, which involves spraying steam onto the impeller to melt the grease on it and using the centrifugal force generated by the impeller's rotation to clean it. However, apart from the impeller, the other parts of the range hood are in a relatively fixed state and cannot generate centrifugal force. Therefore, with current cleaning methods, grease will remain inside the range hood, which is difficult to clean and leads to a strong odor. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, this application proposes a range hood, comprising:

[0005] Body components;

[0006] A spray assembly, comprising a liquid supply pipe, a spray pipe, and a first nozzle, wherein at least a portion of the spray pipe is disposed within the body assembly, the spray pipe is rotatably connected to the liquid supply pipe, and the first nozzle is connected to the spray pipe.

[0007] In one feasible implementation, the rotatable direction of the spray pipe is taken as the first direction, and the angle between the spraying direction of the first nozzle and the first direction is not a right angle, so that the liquid flow sprayed through the first nozzle can drive the spray pipe to rotate.

[0008] In one feasible implementation, the range hood further includes:

[0009] A driving component, connected to the spray pipe, is used to drive the spray pipe to rotate.

[0010] In one feasible implementation, there are at least two first nozzles, and the spraying directions of the multiple first nozzles are different.

[0011] In one feasible implementation, a first slit is formed on the spray end of the first nozzle so that the liquid sprayed through the first nozzle is fan-shaped.

[0012] In one feasible implementation, the body component includes:

[0013] case;

[0014] The fan is housed within the casing;

[0015] A filter screen is disposed inside the housing and covers the air inlet of the housing;

[0016] The spray pipe and the first nozzle are located between the filter and the fan.

[0017] In one feasible implementation, the spray assembly further includes:

[0018] A second nozzle is connected to the spray pipe, and a second slit is formed on the spray end of the second nozzle, the second slit facing at least one of the fan and the filter.

[0019] In one feasible implementation, the spray assembly further includes:

[0020] The third nozzle is spaced apart from the second nozzle, and a third slit is formed on the spray end of the third nozzle;

[0021] A notch is formed on the second nozzle and / or the third nozzle. When the notch is formed on the second nozzle, the second nozzle includes at least two spray directions. When the notch is formed on the third nozzle, the third nozzle includes at least two spray directions. At least one of the at least two spray directions is directed toward the fan, and at least one of the at least two spray directions is directed toward the housing of the fan.

[0022] In one possible implementation, the spray pipe is arranged at the bottom of the fan.

[0023] In one feasible implementation, the range hood further includes:

[0024] A snap fastener is provided on either the spray pipe or the liquid supply pipe, and the spray pipe is rotatably connected to the liquid supply pipe via the snap fastener.

[0025] In one feasible implementation, the range hood further includes:

[0026] The liquid storage section has one end of the liquid supply pipe connected to the liquid storage section and the other end connected to the spray pipe.

[0027] A pump body is disposed inside the liquid storage section and is used to supply the liquid in the liquid storage section to the spray pipe.

[0028] In one feasible implementation, the range hood further includes:

[0029] A flow guide plate is provided, wherein the liquid storage section is located at the bottom of the body assembly, one end of the flow guide plate is connected to the body assembly, and the other end is connected to the liquid storage section.

[0030] Compared to existing technologies, the present invention offers at least the following advantages: The range hood provided in this application includes a body assembly and a spray assembly. At least a portion of the liquid supply pipe of the spray assembly is located within the body assembly, and the spray pipe is rotatably connected to the liquid supply pipe. When cleaning the range hood is required, liquid for cleaning the range hood can be supplied to the spray pipe through the liquid supply pipe. The liquid is sprayed out through a first nozzle on the spray pipe, and the sprayed liquid flow impacts various components of the body assembly. The liquid flow has a certain impact force, which can clean the grease adhering to the body assembly. Compared to the traditional technology of cleaning the range hood by delivering steam, the present application embodiment can spray liquid through the first nozzle, and the liquid has a certain impact force. When the liquid is supplied to the walls of various components of the range hood, it can cause relative displacement with the oil stains adhering to the walls of the components, which is beneficial for removing the oil stains and making the self-cleaning of the range hood more thorough. In addition, the range hood spray pipe provided in this embodiment is rotatably connected to the liquid supply pipe, which greatly increases the spray range of the first nozzle and can improve the cleaning effect on the components. On the other hand, the liquid flow sprayed from the first nozzle has a certain impact force, and the rotation of the spray pipe can also make the liquid flow sprayed through the first nozzle have centrifugal force. The centrifugal force and the impact force can generate a combined force, making the cleaning effect of the liquid flow on the components more effective, especially for removing oil stains adhering to the inner walls of the components, and reducing the odor of the range hood. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 A schematic structural diagram of a range hood from one angle, according to an embodiment of this application;

[0033] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0034] Figure 3 for Figure 2 A magnified view of a portion of point B in the middle;

[0035] Figure 4 A schematic structural diagram of a range hood according to one embodiment of this application from another angle;

[0036] Figure 5 for Figure 4 A cross-sectional view along the CC direction;

[0037] Figure 6for Figure 4 A cross-sectional view along the DD direction;

[0038] Figure 7 A schematic structural diagram of the spray pipe of a range hood according to one embodiment of this application at one angle;

[0039] Figure 8 for Figure 7 A magnified view of a portion of point E in the middle;

[0040] Figure 9 for Figure 7 A magnified view of a portion of point F in the middle;

[0041] Figure 10 A schematic structural diagram of the spray pipe of a range hood according to one embodiment of this application from another angle;

[0042] Figure 11 for Figure 10 A magnified view of a portion of point G in the middle.

[0043] in, Figures 1 to 11 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0044] 100 Body components, 200 Spray components, 300 Clips, 400 Liquid storage unit, 500 Pump body, 600 Baffle plate

[0045] 101 Housing, 102 Fan, 201 Liquid supply pipe, 202 Spray pipe, 203 First nozzle, 204 Second nozzle, 205 Third nozzle, 206 Notch, 2031 First slit, 2041 Second slit, 2051 Third slit. Detailed Implementation

[0046] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0047] like Figures 1 to 11 As shown in the figure, an embodiment of this application proposes a range hood, including: a body assembly 100 and a spray assembly 200;

[0048] The spray assembly 200 includes a liquid supply pipe 201, a spray pipe 202, and a first nozzle 203. At least a portion of the spray pipe 202 is disposed within the body assembly 100. The spray pipe 202 is rotatably connected to the liquid supply pipe 201, and the first nozzle 203 is connected to the spray pipe 202.

[0049] The range hood provided in this application embodiment includes a body assembly 100 and a spray assembly 200. At least a portion of the liquid supply pipe 201 of the spray assembly 200 is located inside the body assembly 100. The spray pipe 202 is rotatably connected to the liquid supply pipe 201. When the range hood needs to be cleaned, liquid for cleaning the range hood can be supplied to the spray pipe 202 through the liquid supply pipe 201. The liquid is sprayed out through the first nozzle 203 on the spray pipe 202. The sprayed liquid flow will impact various parts of the body assembly 100. The liquid flow has a certain impact force, which can clean the oil stains attached to the body assembly 100. Compared with the traditional technology of cleaning the range hood by conveying steam, this application embodiment can spray liquid through the first nozzle 203. The liquid has a certain impact force. When the liquid is supplied to the wall surface of various parts of the body assembly 100, the liquid can generate relative displacement with the oil stains attached to the wall surface, which is conducive to removing oil stains and making the self-cleaning of the range hood more thorough.

[0050] The range hood spray pipe 202 provided in this embodiment is rotatably connected to the liquid supply pipe 201. The spray pipe 202 can drive the first nozzle 203 to rotate, which greatly increases the spray range of the first nozzle 203 and improves the cleaning effect on the body component 100. On the other hand, the liquid flow sprayed by the first nozzle 203 has a certain impact force. The rotation of the spray pipe 202 can also make the liquid flow sprayed by the first nozzle 203 have centrifugal force. The centrifugal force and the impact force can generate a combined force, making the cleaning effect of the liquid flow on the body component 100 more effective. It is particularly good at removing oil stains attached to the inner wall of the body component 100 and reducing the odor of the range hood.

[0051] It is understood that at least one end of the liquid supply pipe 201 is located inside the body assembly 100, and the other end of the liquid supply pipe 201 can be connected to a liquid source. The spray pipe 202 is connected to the end of the liquid supply pipe 201 located inside the body assembly 100, so that the first nozzle 203 is located inside the body assembly 100. The liquid sprayed through the first nozzle 203 can directly act on the body assembly 100, which can further improve the cleaning effect of the range hood.

[0052] like Figure 2 , Figure 7 , Figure 9 and Figure 11 As shown, and in some examples, the rotatable direction of the spray pipe 202 is taken as the first direction, and the angle between the spray direction of the first nozzle 203 and the first direction is not a right angle, so that the liquid flow sprayed through the first nozzle 203 can drive the spray pipe 202 to rotate.

[0053] The spray pipe 202 is rotatably connected to the liquid supply pipe 201, meaning that there is a degree of freedom between the spray pipe 202 and the liquid supply pipe 201. The spraying direction of the first nozzle 203 is not perpendicular to the rotatable direction of the spray pipe 202. When liquid is sprayed out through the first nozzle 203, the reaction force of the liquid flow on the spray pipe 202 will form a component force in the rotatable direction of the spray pipe 202. This component force can drive the spray pipe 202 to rotate. When the first nozzle 203 sprays liquid at a non-right angle, the spray pipe 202 can rotate under the reaction force of the liquid flow. This allows the spray pipe 202 to rotate independently without the need for external force. This significantly increases the spray range of the first nozzle 203, improving the cleaning effect on the body component 100. Furthermore, the liquid flow from the first nozzle 203 has a certain impact force, and the rotation of the spray pipe 202 also creates centrifugal force in the liquid flow. This centrifugal force, combined with the impact force, further enhances the cleaning effect on the body component 100, particularly effective at removing grease adhering to the inner wall of the body component 100, thus reducing odors from the range hood. Finally, the absence of an additional structure to drive the spray pipe 202's rotation reduces the cost of the range hood.

[0054] It is understandable that, in order to enable the liquid sprayed by the first nozzle 203 to have sufficient force to drive the spray pipe 202 to rotate, the spraying direction of the first nozzle 203 and the rotatable direction of the spray pipe 202 can be at a straight angle or approximately at a straight angle.

[0055] In some examples, the range hood also includes a drive unit connected to the spray pipe 202 for driving the spray pipe 202 to rotate.

[0056] The range hood may also include a drive unit connected to the spray pipe 202 to drive the spray pipe 202 to rotate by external force. This configuration can increase the rotation speed of the spray pipe 202, making the rotation performance of the spray pipe 202 more reliable, and making the liquid flow sprayed through the first nozzle 203 more evenly supplied within the body assembly 100.

[0057] In some examples, the driving component can be a motor, which can be connected to the spray pipe 202 via a rotating shaft.

[0058] In some examples, there are at least two first nozzles 203, and the spraying directions of the multiple first nozzles 203 are different.

[0059] There can be at least two first nozzles 203. By setting two or more first nozzles 203, there are more spray angles between the multiple first nozzles 203, so that the liquid flow sprayed by the first nozzles 203 has a higher coverage of the body component 100, which can ensure the cleaning effect and reduce the probability of cleaning dead corners in the body component 100.

[0060] like Figure 11 As shown, in some examples, a first slit 2031 is formed on the spray end of the first nozzle 203 so that the liquid sprayed through the first nozzle 203 is fan-shaped.

[0061] A first slit 2031 is formed on the first nozzle 203. By forming the first slit 2031 on the spray end of the first nozzle 203, the liquid flow sprayed through the first nozzle 203 is fan-shaped. The fan-shaped liquid flow impacts the wall surface of each component of the machine body assembly 100, which increases the probability of contact between the liquid flow and the wall surface and improves the cleaning efficiency.

[0062] In some examples, the width of the first slit 2031 can be 2mm to 5mm, so that the liquid flow sprayed through the first slit 2031 has sufficient impact force, and at the same time makes the liquid flow form a fan shape with a large area, which can improve cleaning efficiency. If the width of the first slit 2031 is less than 2mm, it will reduce the spray area of ​​the fan shape of the liquid flow, resulting in a decrease in cleaning efficiency. If the width of the first slit 2031 is greater than 5mm, it will cause a decrease in the impact force of the liquid flow, affecting the spraying efficiency.

[0063] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in some examples, the body assembly 100 includes: a housing 101; a fan 102 disposed within the housing 101; a filter disposed within the housing 101 and covering the air inlet of the housing 101; wherein, a spray pipe 202 and a first spray head 203 are located between the filter and the fan 102.

[0064] The main body component 100 includes a housing 101, a fan 102, and a filter. The filter filters oil and grease, while the fan 102 draws air. The fan 102 and the filter are housed inside the housing 101. The liquid sprayed from the first nozzle 203 cleans the filter, the inner wall of the housing 101, and the fan 102, reducing the amount of oil accumulated inside the range hood and lowering its odor. The range hood can also be automatically cleaned, eliminating the need for professional assistance, thus reducing cleaning costs and improving the user experience.

[0065] Understandably, the fan 102 may include an impeller and a fan housing.

[0066] The filter screen covers the air inlet of the housing 101 and plays a filtering role. The spray pipe 202 and the first spray head 203 are located between the filter screen and the fan 102. On the one hand, it provides an installation position for the spray pipe 202, making the layout of the spray assembly 200 more compact and avoiding obstruction of the range hood's air intake by the setting of the spray pipe 202. On the other hand, the liquid flow delivered through the spray pipe 202 can first contact the fan 102, and then the liquid flow flows to the filter screen, which can increase the probability of the filter screen contacting the liquid flow and improve the cleaning effect of the filter screen.

[0067] like Figure 2 , Figure 7 and Figure 10 As shown, in some examples, the spray assembly 200 further includes a second nozzle 204 connected to the spray pipe 202, and a second slit 2041 is formed on the spray end of the second nozzle 204, the second slit 2041 facing at least one of the fan 102 and the filter.

[0068] Considering that there may be some corners on the impeller or housing 101 of the fan 102, and these corners are prone to forming dead angles, the range hood includes a second nozzle 204 with a second slit 2041 formed on it, so that the liquid sprayed through the second nozzle 204 is fan-shaped, and the second slit 2041 is oriented towards at least one of the fan 102 and the filter, so that the liquid sprayed through the second nozzle 204 can specifically clean the fan 102 and / or the filter, which can efficiently clean the fan 102 and / or the filter, greatly improving the self-cleaning performance of the range hood.

[0069] It is understandable that the spray assembly 200 of the range hood can provide power for the self-rotation of the spray pipe 202 through the setting of the first spray head 203. Therefore, in the process of setting the second spray head 204, the spray direction of the second spray head 204 can be preferentially directed towards the fan 102 and / or the filter screen, so that the second spray head 204 can maximize the cleaning of the fan 102 and / or the filter screen.

[0070] In some examples, the width of the second slit 2041 can be 1 mm to 3 mm. This setting can ensure a uniform supply of liquid flow and increase the delivery distance of the liquid flow, ensuring sufficient impact force when the liquid flow is supplied to the fan 102 or the filter screen, thereby improving the oil stain cleaning efficiency.

[0071] In some examples, there can be multiple second nozzles 204. The spray direction of some of the multiple second nozzles 204 can be towards the fan 102, while the spray direction of another portion of the multiple second nozzles 204 can be towards the filter screen.

[0072] In some examples, the spray assembly 200 further includes: a third nozzle 205, which is spaced apart from the second nozzle 204, and a third slit 2051 is formed on the spray end of the third nozzle 205; and a notch 206 formed on the second nozzle 204 and / or the third nozzle 205. When the notch 206 is formed on the second nozzle 204, the second nozzle 204 includes at least two spray directions. When the notch 206 is formed on the third nozzle 205, the third nozzle 205 includes at least two spray directions. At least one of the at least two spray directions is directed toward the fan 102, and at least one of the at least two spray directions is directed toward the housing of the fan 102.

[0073] like Figure 2 , Figure 3 , Figure 7 and Figure 10 As shown, in some examples, the range hood also includes a third nozzle 205, and the third nozzle 205 and the second nozzle 204 are disposed on different walls of the spray pipe 202, so that the spraying directions of the third nozzle 205 and the second nozzle 204 are different. When cleaning the body component 100 through the first nozzle 203, the second nozzle 204 and the third nozzle 205, the coverage of the sprayed liquid flow on the body component 100 can be greatly improved, which can improve the cleaning efficiency.

[0074] In some examples, the width of the third slit 2051 formed on the third nozzle 205 can be 1 mm to 3 mm. This setting can ensure a uniform supply of liquid flow and increase the delivery distance of the liquid flow, ensuring sufficient impact force when the liquid flow is supplied to the fan 102 or the filter screen, thereby improving the oil stain cleaning efficiency.

[0075] like Figure 3 As shown, the range hood may further include a notch 206, which is formed on the second nozzle 204 and / or the third nozzle 205. The notch 206 allows the outer contours of the second slit 2041 and / or the third slit 2051 to be non-linear, thus enabling the second nozzle 204 and / or the third nozzle 205 to have at least two spraying directions. It is understood that the notch 206 is located at the end of the second nozzle 204 and / or the third nozzle 205 facing the fan 102, ensuring that one of the two spraying directions faces the fan 102, facilitating the supply of sprayed liquid into the fan 102 to clean the impeller and the walls of the fan casing.

[0076] It is understood that there can be multiple notches 206, and each second nozzle 204 or third nozzle 205 can be provided with multiple notches 206. This arrangement allows each second nozzle 204 or third nozzle 205 to have multiple spray directions.

[0077] like Figure 3 As shown, in some examples, with the connection surface between the second nozzle 204 or the third nozzle 205 and the spray pipe 202 as the x-axis, the slope of the notch 206 can be between 0.2 and 0.7, which can ensure that the liquid flow sprayed through the notch 206 can effectively clean the housing 101 of the fan 102.

[0078] In some examples, the second nozzle 204 can be tilted relative to the length direction of the spray pipe 202, so that the liquid sprayed through the second nozzle 204 can more easily come into contact with the body assembly 100. Specifically, the angle between the second slit 2041 on the second nozzle 204 and the length direction of the spray pipe 202 can be 20° to 60°, so that the liquid flow sprayed through the second nozzle 204 can clean the side wall of the fan housing.

[0079] In some examples, there can be multiple first nozzles 203, second nozzles 204 and third nozzles 205, which can make the liquid flow coverage of the spray higher; or there can be only one first nozzle 203, second nozzle 204 and third nozzle 205, which can ensure that the sprayed liquid has a certain impact force, and at the same time make the force on the spray pipe 202 simpler, which is conducive to the rotation of the spray pipe 202.

[0080] like Figure 1 and Figure 6 As shown, in some examples, the spray pipe 202 is arranged at the bottom of the fan 102.

[0081] The spray pipe 202 is arranged at the bottom of the fan 102. On the one hand, this allows the liquid sprayed by the spray assembly 200 to be supplied from the bottom to the inner wall of the housing 101 of the body assembly 100, the fan 102, and the filter screen, enabling the liquid to better contact the accumulated grease. On the other hand, considering the actual usage scenario of the range hood, the direction of the range hood's grease removal is the same as the direction of the liquid supply, which helps to improve the cleaning efficiency of the grease. Furthermore, at least one end of the liquid supply pipe 201 is located inside the body assembly 100. The other end of the liquid supply pipe 201 can be connected to a liquid source. The spray pipe 202 is connected to one end of the liquid supply pipe 201 located inside the body assembly 100, so that the first nozzle 203 is located inside the body assembly 100. The liquid sprayed through the first nozzle 203 can directly act on the body assembly 100, which can further improve the cleaning effect of the range hood. The liquid can be supplied through the bottom of the body assembly 100, which is conducive to the arrangement of the liquid supply pipe 201 and the spray pipe 202, making the assembly and maintenance of the range hood more convenient.

[0082] like Figure 7 and Figure 10As shown, in some examples, the range hood also includes a clip 300 disposed on either the spray pipe 202 or the liquid supply pipe 201, the spray pipe 202 being rotatably connected to the liquid supply pipe 201 via the clip 300.

[0083] A buckle 300 may be provided on either the spray pipe 202 or the liquid supply pipe 201. The spray pipe 202 is snapped into the liquid supply pipe 201 by the buckle 300, which can limit the spray pipe 202 along the height direction of the supply pipe and facilitate the rotation of the spray pipe 202 relative to the liquid supply pipe 201.

[0084] like Figure 7 and Figure 10 As shown, in some examples, the clip 300 can be arranged in the middle of the spray pipe 202 so that the weight on both sides of the spray pipe 202 is nearly equal, which is beneficial to the rotation of the spray pipe 202.

[0085] like Figure 5 As shown, in some examples, the range hood also includes: a liquid storage section 400, one end of a liquid supply pipe 201 connected to the liquid storage section 400 and the other end connected to a spray pipe 202; and a pump body 500 disposed in the liquid storage section 400 for supplying liquid in the liquid storage section 400 to the spray pipe 202.

[0086] The range hood also includes a liquid storage section 400 and a pump body 500. During use, the liquid storage section 400 can be filled with liquid for cleaning the body components 100. When the range hood needs to be cleaned, the pump body 500 can be turned on to supply the liquid stored in the liquid storage section 400 to the spray pipe 202 at a certain flow rate, so that the liquid is sprayed out through the first nozzle 203 on the spray pipe 202.

[0087] Understandably, the liquid stored in the liquid reservoir 400 can be water or a solution containing a cleaning medium. Users can fill the liquid reservoir 400 with liquid to clean the body components 100.

[0088] In some examples, the range hood may also include a heating element that provides heat to the liquid storage section 400, so that the liquid sprayed through the spray pipe 202 has a certain temperature, which can improve the oil removal ability.

[0089] like Figure 5 As shown, in some examples, the range hood also includes: a baffle plate 600, a liquid storage section located at the bottom of the body assembly 100, one end of the baffle plate 600 connected to the body assembly 100, and the other end connected to the liquid storage section 400.

[0090] The range hood also includes a baffle plate 600. By arranging the baffle plate 600 at the bottom of the body component 100, the liquid sprayed onto the body component 100 through the spray pipe 202 will fall onto the baffle plate 600 under the action of gravity. Then the liquid will flow down the baffle plate 600 to the liquid storage section 400, which can realize the recycling and reuse of the liquid.

[0091] Understandably, the baffle plate 600 can limit the airflow of the fan 102, which can reduce the size of the air intake to a certain extent, thereby increasing the airflow and improving the fume removal effect of the range hood.

[0092] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0093] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A range hood, characterized in that, include: Body components; A spray assembly, comprising a liquid supply pipe, a spray pipe and a first nozzle, wherein at least a portion of the spray pipe is disposed within the body assembly, the spray pipe is rotatably connected to the liquid supply pipe, and the first nozzle is connected to the spray pipe; The body components include: case; The fan is housed within the casing; A filter screen is disposed inside the housing and covers the air inlet of the housing; The spray pipe and the first nozzle are located between the filter screen and the fan; The spray assembly also includes: A second nozzle is connected to the spray pipe, and a second slit is formed on the spray end of the second nozzle, the second slit facing at least one of the fan and the filter screen; The third nozzle is spaced apart from the second nozzle, and a third slit is formed on the spray end of the third nozzle; A notch is formed on the second nozzle and / or the third nozzle. When the notch is formed on the second nozzle, the second nozzle includes at least two spray directions. When the notch is formed on the third nozzle, the third nozzle includes at least two spray directions. At least one of the at least two spray directions is directed toward the fan, and at least one of the at least two spray directions is directed toward the outer casing of the fan.

2. The range hood according to claim 1, characterized in that, With the rotatable direction of the spray pipe as the first direction, the angle between the spraying direction of the first nozzle and the first direction is not a right angle, so that the liquid flow sprayed through the first nozzle can drive the spray pipe to rotate.

3. The range hood according to claim 1, characterized in that, Also includes: A driving component, connected to the spray pipe, is used to drive the spray pipe to rotate.

4. The range hood according to claim 2, characterized in that, There are at least two first nozzles, and the spraying directions of the multiple first nozzles are different.

5. The range hood according to claim 2, characterized in that, A first slit is formed on the spray end of the first nozzle so that the liquid sprayed through the first nozzle is in a fan shape.

6. The range hood according to claim 1, characterized in that, The spray pipe is located at the bottom of the fan.

7. The range hood according to any one of claims 1 to 6, characterized in that, Also includes: A snap fastener is provided on either the spray pipe or the liquid supply pipe, and the spray pipe is rotatably connected to the liquid supply pipe via the snap fastener.

8. The range hood according to any one of claims 1 to 6, characterized in that, Also includes: The liquid storage section has one end of the liquid supply pipe connected to the liquid storage section and the other end connected to the spray pipe. A pump body is disposed inside the liquid storage section and is used to supply the liquid in the liquid storage section to the spray pipe.

9. The range hood according to claim 8, characterized in that, Also includes: A flow guide plate is provided, wherein the liquid storage section is located at the bottom of the body assembly, one end of the flow guide plate is connected to the body assembly, and the other end is connected to the liquid storage section.

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