A desktop smoke machine

Abstract

The embodiment of the application discloses a kind of desktop smoke machines, including desktop smoke machine main body, flexible shock-absorbing traction belt and support frame assembly, flexible shock-absorbing traction belt includes connecting band and multiple pawls, the first end of connecting band is connected with one end of desktop smoke machine main body, the second end of connecting band is connected with the other end of desktop smoke machine main body, the distance of multiple pawls with the first end of connecting band is not all same, support frame assembly is detachably connected with anyone in multiple pawls, to make flexible shock-absorbing traction belt hang desktop smoke machine main body, and make desktop smoke machine main body present different angle inclination, under the action of gravity, desktop smoke machine main body is naturally inclined, to realize the adjustment of desktop smoke machine main body angle, flexible shock-absorbing traction belt exists the effect of vibration isolation, so when vibration is generated when desktop smoke machine main body works, avoid the resonance between support frame assembly and desktop caused by fan vibration, improve the experience of user.

Description

Technical Field

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

[0002] As people's living standards improve, grilling or hot pot at home has become increasingly popular. However, grilling produces heavy fumes, and hot pot produces strong odors, which can negatively impact indoor air quality. To reduce the impact of these cooking methods on indoor air quality, desktop range hoods have emerged. Desktop range hoods are a new type of portable range hood with more flexible usage scenarios. They can be used on the dining table to remove fumes and odors generated during cooking, enhancing the user's dining experience.

[0003] When using a desktop range hood, the high-speed operation of the fan will cause resonance between various components of the range hood and the fan, especially the support base supporting the range hood body and the desktop. The abnormal noise generated by the resonance affects the user experience. Existing desktop range hoods use shock-absorbing rubber pads at the bottom of the support base to reduce the vibration generated by the fan during operation, but the shock absorption effect is not obvious.

[0004] Therefore, how to significantly reduce the resonance effect between the support base and the tabletop when the fan is running at high speed is a focus of attention for those in the field and related personnel. Summary of the Invention

[0005] In view of this, the present invention provides a desktop range hood to solve the problem of resonance between the support base and the desktop when the fan operates at high speed in the prior art. To achieve one, some, or all of the above objectives, or other objectives, the present invention proposes a desktop range hood, including a desktop range hood body, a flexible shock-absorbing traction belt, and a support frame assembly. The flexible shock-absorbing traction belt includes a connecting belt and multiple clamps. A first end of the connecting belt is connected to one end of the desktop range hood body, and a second end of the connecting belt is connected to the other end of the desktop range hood body. The distances between the multiple clamps and the first end of the connecting belt are all different. The support frame assembly is detachably connected to any one of the multiple clamps, so that the flexible shock-absorbing traction belt suspends the desktop range hood body and tilts the desktop range hood body at different angles.

[0006] Based on the above technical solution, the flexible shock-absorbing traction belt includes a connecting belt and multiple claws. The first end of the connecting belt is connected to one end of the desktop range hood body, and the second end of the connecting belt is connected to the other end of the desktop range hood body, thereby realizing the connection between the flexible shock-absorbing traction belt and the desktop range hood body. The distances between the multiple claws and the first end of the connecting belt are all different. One end of the support frame assembly is detachably connected to any one of the multiple claws, so that the flexible shock-absorbing traction belt can suspend the desktop range hood body. The claws connected to the support frame assembly can be changed as needed. Under the action of gravity, the desktop range hood body naturally tilts, thereby realizing the adjustment of the angle of the desktop range hood body. The connection between the support frame assembly and the desktop range hood body is realized through the flexible shock-absorbing traction belt. The flexible shock-absorbing traction belt has the function of vibration isolation. Therefore, when the desktop range hood body vibrates during operation, the vibration of the desktop range hood body cannot be transmitted to the support frame assembly, avoiding resonance between the support frame assembly and the desktop caused by fan vibration, and improving the user experience.

[0007] Preferably, the support frame assembly includes a support base and a support bracket. One end of the support bracket is connected to the support base, and the other end of the support bracket extends upward, bends around the desktop range hood body, and then extends downward to connect with the support base. The upper end of the support bracket is engaged with the claw.

[0008] Based on the above technical solution, the support frame assembly is divided into two parts: a support base and a support bracket. The support base is used to place on a flat surface such as a desktop to facilitate the placement of the main body of the desktop range hood. The support bracket is used to connect the support base and the connecting belt. Specifically, the support bracket engages with the claws, which facilitates changing the position of the connection between the support bracket and the claws, thereby facilitating the adjustment of the angle of the main body of the desktop range hood.

[0009] Preferably, the claw includes a fixing part and a plugging part, the fixing part and the plugging part are combined to form a snap-fit ​​groove, and the upper end of the support bracket is snapped into the claw through the snap-fit ​​groove.

[0010] Based on the above technical solution, the claw has a fixing part and a plug-in part. The locking groove is formed by the combination of the fixing part and the plug-in part. When the support bracket and the claw are locked together, one end of the support bracket is in contact with the inner wall of the fixing part, and the other end of the support bracket is in contact with the inner wall of the plug-in part, so that the support bracket is securely locked in the locking groove.

[0011] Preferably, the width of the slot is smaller than the cross-sectional area of ​​the support bracket.

[0012] Based on the above technical solution, the width of the slot is smaller than the cross-sectional area of ​​the support bracket, so that the support bracket can be better locked in the slot and the support bracket can be prevented from falling out of the claw.

[0013] Preferably, the plurality of said claws are located on one side near the second end of the connecting strip.

[0014] Based on the above technical solution, multiple claws are located on one side near the second end of the connecting belt. When the position of the support bracket is changed, the air inlet of the desktop range hood will naturally tilt downward due to its own weight, thereby achieving an adjustable angle for the desktop range hood. The position of the support bracket can be adjusted according to the actual usage situation, so that the desktop range hood is at an appropriate angle to achieve the effect of smoke containment.

[0015] Preferably, one side wall of the support bracket is recessed inward to form a snap-fit ​​notch, the inner wall of the fixing part fits against the snap-fit ​​notch, and the other side of the support bracket fits against the inner wall of the insertion part.

[0016] Based on the above technical solution, one side wall of the support bracket is recessed inward to form a snap-fit ​​notch. The width of the snap-fit ​​notch is the same as the width of the fixing part. The snap-fit ​​notch fits into the fixing part, thereby making the snap-fit ​​between the support bracket and the claw more stable. The lateral depth of the snap-fit ​​notch is less than the lateral thickness of the fixing part, so that the fixing part is snapped into the snap-fit ​​notch, thereby preventing the support bracket from falling out of the snap-fit ​​groove of the claw.

[0017] Preferably, the connecting strap includes a connecting strap body, a first connecting end, and a second connecting end. The first connecting end is formed by bending one end of the connecting strap body outward and connecting it to the connecting strap body. The second connecting end is formed by bending the other end of the connecting strap body outward and connecting it to the connecting strap body. The first connecting end is provided with a first mounting port, and the second connecting end is provided with a second mounting port. The connecting strap is connected to the desktop range hood body through the first mounting port and the second mounting port.

[0018] Based on the above technical solution, the first connecting end is formed by bending one end of the connecting belt body outward and connecting it to the connecting belt body, and the second connecting end is formed by bending the other end of the connecting belt body outward and connecting it to the connecting belt body. The first connecting end has a first installation port, and the second connecting end has a second installation port. It is connected to the desktop range hood body through the first installation port and the second installation port.

[0019] Preferably, the flexible shock-absorbing traction belt further includes two buckles, one of which is connected to the main body of the connecting belt to form the first connecting end, and the other of which is connected to the main body of the connecting belt to form the second connecting end, and the first connecting end and the second connecting end are locked together by the buckles.

[0020] Based on the above technical solution, the first connecting end is formed by a buckle connecting to the main body of the connecting belt, and the second connecting end is formed by another buckle connecting to the main body of the connecting belt. Both the first connecting end and the second connecting end are locked by buckles, thereby stabilizing the connection between the connecting belt and the main body of the desktop range hood.

[0021] Preferably, the desktop range hood body is provided with two traction rings, one of which is connected to the first connection end through the first mounting port, and the other traction ring is connected to the second connection end through the second mounting port.

[0022] Based on the above technical solution, two traction rings are provided on the main body of the desktop range hood, thereby realizing the connection between the flexible shock-absorbing traction belt and the main body of the desktop range hood. At the same time, the connection between the first mounting port, the second mounting port and the traction rings facilitates the rotation of the main body of the desktop range hood, making it easy to adjust the angle of the main body of the desktop range hood according to actual needs.

[0023] Preferably, the desktop range hood body includes a rectifier assembly and a filter assembly. The rectifier assembly includes a rectifier outer ring, a rectifier inner ring, and a rectifier plate. The inner wall of the rectifier outer ring protrudes inward to form an annular protrusion. The rectifier inner ring is connected to the annular protrusion. The rectifier plate is connected to the filter assembly. An air inlet duct is formed between the rectifier inner ring and the rectifier plate. An air outlet duct is formed by combining the rectifier outer ring and the filter assembly. An angle exists between the air inlet duct and the air outlet duct.

[0024] Based on the above technical solution, the fumes enter the air inlet duct formed by the combination of the inner rectifier ring and the rectifier plate, impacting the inner wall of the outer rectifier ring, and then enter the air outlet duct between the outer rectifier ring and the filter assembly. Due to the Coanda effect, the fumes entering the outer rectifier ring move with the shape of the annular protrusion and the rectifier plate, making it easier to collect and discharge the fumes. Since there is an angle between the air inlet duct and the air outlet duct, the fumes enter through the side wall of the filter assembly through the air outlet duct, thereby reducing the oil stains adhering to the filter element and improving the service life of the filter element.

[0025] Implementing the embodiments of the present invention will have the following beneficial effects:

[0026] After adopting the above-mentioned desktop range hood, the flexible shock-absorbing traction belt includes a connecting belt and multiple claws. The first end of the connecting belt is connected to one end of the desktop range hood body, and the second end of the connecting belt is connected to the other end of the desktop range hood body, thereby realizing the connection between the flexible shock-absorbing traction belt and the desktop range hood body. The distances between the multiple claws and the first end of the connecting belt are all different. One end of the support frame assembly is detachably connected to any one of the multiple claws, so that the flexible shock-absorbing traction belt can suspend the desktop range hood body. The claws connected to the support frame assembly can be changed as needed. Under the action of gravity, the desktop range hood body naturally tilts, thereby realizing the adjustment of the angle of the desktop range hood body. The connection between the support frame assembly and the desktop range hood body is realized through the flexible shock-absorbing traction belt. The flexible shock-absorbing traction belt has the function of vibration isolation. Therefore, when the desktop range hood body vibrates during operation, the vibration of the desktop range hood body cannot be transmitted to the support frame assembly, avoiding resonance between the support frame assembly and the desktop caused by fan vibration, improving the user experience, and solving the problem of resonance between the support base and the desktop when the fan is running at high speed in the prior art, which affects the user experience. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] in:

[0029] Figure 1 This is a schematic diagram of the overall structure of a desktop range hood in one embodiment;

[0030] Figure 2 This is a partial structural diagram of a desktop range hood in one embodiment, mainly used to illustrate the connection between the flexible shock-absorbing traction belt and the support frame assembly;

[0031] Figure 3 This is a schematic diagram of the overall structure of the flexible shock-absorbing traction belt of a desktop range hood in one embodiment;

[0032] Figure 4 This is a schematic diagram of the overall structure of the support frame assembly for a desktop range hood in one embodiment;

[0033] Figure 5 To and Figure 1 Structural diagrams of desktop range hoods from different angles;

[0034] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure;

[0035] Figure 7 for Figure 6 Partial structural diagram;

[0036] Figure 8 This is a schematic diagram of the rectifier and filter components in a desktop range hood in one embodiment;

[0037] Figure 9 This is a schematic diagram of the air intake assembly and mounting base in a desktop range hood, as shown in one embodiment.

[0038] Explanation of reference numerals in the attached drawings: 1. Desktop range hood body; 11. Traction ring; 111. First traction ring; 112. Second traction ring; 12. Rectifier assembly; 121. Rectifier outer ring; 1211. Rectifier ring body; 1212. Annular protrusion; 1213. Air inlet; 1214. Air outlet; 1215. Upper mounting hole; 122. Rectifier inner ring; 1221. Mounting hole; 123. Rectifier plate; 1231. Protrusion; 1232. Connecting part; 13. Filter assembly; 131. Upper end cover; 132. Filter media; 133. Lower end cover; 1331. Connecting hole; 134. Ventilation chamber; 14. Suction assembly; 141. Suction cylinder; 1411. First mounting hole; 142. Impeller; 1421. Blade; 1422. Hub; 15 1. Fixed base; 151. Protective cover; 1511. Lower mounting hole; 152. Mounting base; 16. Air inlet duct; 17. Air outlet duct; 18. Connecting cover; 181. Outer shell; 1811. Connecting block; 1812. Upper mounting block; 1813. Lower mounting block; 182. Bottom wall; 1821. Second mounting hole; 1822. Clearance groove; 2. Flexible shock-absorbing traction belt; 21. Connecting belt; 211. Connecting belt body; 212. First connecting end; 213. First mounting port; 214. Second connecting end; 215. Second mounting port; 22. Claw; 221. Fixing part; 222. Insertion part; 223. Snap-fit ​​groove; 23. Lock; 3. Support frame assembly; 31. Support base; 32. Support bracket; 321. Snap-fit ​​notch. Detailed Implementation

[0039] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0041] It is understood that the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising,” “including,” or “having” specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0042] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the invention and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0043] Furthermore, the terms "set up," "equipped with," "connected," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0044] Reference Figure 1This invention provides a desktop range hood, comprising a desktop range hood body 1, a flexible shock-absorbing traction belt 2, and a support frame assembly 3. The desktop range hood body 1 is used to exhaust fumes. One end of the flexible shock-absorbing traction belt 2 is connected to one end of the desktop range hood body 1, and the other end of the flexible shock-absorbing traction belt 2 is connected to the other end of the desktop range hood body 1. The flexible shock-absorbing traction belt 2 is located directly above the desktop range hood body 1. One end of the support frame assembly 3 is detachably connected to the flexible shock-absorbing traction belt 2, and the other end of the support frame assembly 3 is used to place on a flat surface such as a desktop. The support frame assembly 3 is connected to the desktop range hood body 1 by the flexible shock-absorbing traction belt 2. The flexible shock-absorbing traction belt 2 is made of materials such as leather, nylon cloth, rubber, and silicone, thereby playing a role in vibration isolation. When the desktop range hood body 1 is working, it prevents the vibration of the desktop range hood body 1 from being transmitted to the support frame assembly 3, and at the same time prevents resonance between the support frame assembly 3 and the desktop from generating abnormal noise, thus improving the user experience.

[0045] Reference Figure 2 The support frame assembly 3 includes a support base 31 and a support bracket 32. One end of the support bracket 32 ​​is connected to the support base 31, and the other end of the support bracket 32 ​​extends upward, bends around the main body of the tabletop range hood 1, and then extends downward to connect with the support base 31. The upper end of the support bracket 32 ​​is detachably connected to the flexible shock-absorbing traction belt 2. The support base 31 is a circular platform so that the support frame assembly 3 can be placed stably on the tabletop.

[0046] Reference Figure 3 The flexible shock-absorbing traction belt 2 includes a connecting belt 21 and multiple claws 22. The first end of the connecting belt 21 is connected to one end of the desktop range hood body 1, and the second end of the connecting belt 21 is connected to the other end of the desktop range hood body 1. The claws 22 are disposed on the inner side wall of the connecting belt 21 and are located between the connecting belt 21 and the desktop range hood body 1. Specifically, the first end of the connecting belt 21 is connected to one end of the air inlet of the desktop range hood body 1, and the second end of the connecting belt 21 is connected to one end of the air outlet of the desktop range hood body 1. The support bracket 32 ​​is detachably connected to any one of the multiple claws 22 so that the flexible shock-absorbing traction belt 2 suspends the desktop range hood body 1. The claws 22 connected to the support bracket assembly 3 can be changed as needed. Under the action of gravity, the desktop range hood body 1 naturally tilts.

[0047] Reference Figure 3 In this embodiment, there are four claws 22, which are equally spaced. The distances between the four claws 22 and the first end of the connecting belt 21 are different, and the four claws 22 are all located on the side close to the second end of the connecting belt 21. When the position of the support frame assembly 3 is adjusted, the desktop range hood body 1 naturally tilts downward due to its own gravity, so that the height of the air inlet end of the desktop range hood body 1 is lower than the height of the air outlet end, thereby improving the smoke containment effect.

[0048] Reference Figure 3 Each of the four claws 22 has a locking groove 223. The support bracket 32 ​​is engaged with the claws 22 through the locking groove 223, so that the support bracket 32 ​​can be replaced with different claws 22. At the same time, it is easy to adjust the angle of the desktop range hood body 1 according to actual needs. The width of the groove 223 is smaller than the cross-sectional width of the support bracket 32, so that the support bracket 32 ​​is better locked in the groove 223 and the support bracket 32 ​​is prevented from falling out of the claws 22. The width of the groove 223 is smaller than the cross-sectional area of ​​the support bracket 32, so that the support bracket 32 ​​is better locked in the groove 223 and the support bracket 32 ​​is prevented from falling out of the claws 22.

[0049] Reference Figure 3 The claw 22 includes a fixing part 221 and a plug-in part 222. Both the fixing part 221 and the plug-in part 222 are provided on the inner side wall of the connecting band 21. The fixing part 221 is perpendicular to the connecting band 21, and the plug-in part 222 is arc-shaped. The fixing part 221 and the plug-in part 222 are combined to form a locking groove 223. One end of the support bracket 32 ​​is in contact with the inner wall of the fixing part 221, and the other end of the support bracket 32 ​​is in contact with the inner wall of the plug-in part 222.

[0050] Reference Figure 3 and Figure 4 One side wall of the support bracket 32 ​​is recessed inward to form a snap-fit ​​notch 321. The snap-fit ​​notch 321 is semi-cylindrical in shape, and both side walls of the snap-fit ​​notch 321 are D-shaped. The snap-fit ​​notch 321 fits against the inner wall of the fixing part 221. The lateral depth of the snap-fit ​​notch 321 is less than the lateral thickness of the fixing part 221, so that the fixing part 221 is snapped into the snap-fit ​​notch 321, thereby preventing the support bracket 32 ​​from falling out of the snap-fit ​​groove 223 of the claw 22.

[0051] Reference Figure 3The connecting strap 21 includes a connecting strap body 211, a first connecting end 212, and a second connecting end 214. One end of the connecting strap body 211 is bent outward and connected to the connecting strap body 211 to form the first connecting end 212. The other end of the connecting strap body 211 is bent outward and connected to the connecting strap body 211 to form the second connecting end 214. The first connecting end 212 has a first mounting port 213, and the second connecting end 214 has a second mounting port 215. Two traction rings 11 are provided on the outer wall of the desktop range hood body 1. The traction ring 11 near the air inlet end of the desktop range hood body 1 is the first traction ring 111, and the traction ring 11 near the air outlet end of the desktop range hood body 1 is the second traction ring 112. The first connecting end 212 is rotatably connected to the first traction ring 111 through the first mounting port 213, and the second connecting end 214 is rotatably connected to the second traction ring 112 through the second mounting port 215. While realizing the connection between the connecting belt 21 and the desktop range hood body 1, the position of the desktop range hood body 1 is also adjusted when the support frame assembly 3 is adjusted.

[0052] Reference Figure 3 The flexible shock-absorbing traction belt 2 includes two buckles 23. One buckle 23 is connected to the connecting belt body 211 to form a first connecting end 212, and the other buckle 23 is connected to the connecting belt body 211 to form a second connecting end 214. The first connecting end 212 and the second connecting end 214 are connected to the traction ring 11 through the buckles 23, thereby locking the first connecting end 212 and the second connecting end 214.

[0053] Reference Figure 5 and Figure 6 The main body 1 of the desktop range hood includes a rectifier assembly 12, a filter assembly 13, an air intake assembly 14, and a mounting base 15. The rectifier assembly 12 and the mounting base 15 are connected to form an installation cavity. The filter assembly 13 and the air intake assembly 14 are both located in the installation cavity. The air intake assembly 14 is used to absorb oil fumes, so that the oil fumes are discharged sequentially through the rectifier assembly 12, the filter assembly 13, and the mounting base 15.

[0054] Reference Figure 7 and Figure 8 The rectifier assembly 12 includes an outer rectifier ring 121, an inner rectifier ring 122, and a rectifier plate 123. The outer rectifier ring 121 is connected to the fixed base 15 and is sleeved on the upper half of the filter assembly 13. The inner wall of the outer rectifier ring 121 protrudes inward to form an annular protrusion 1212. The inner rectifier ring 122 is connected to the annular protrusion 1212. The rectifier plate 123 is connected to the filter assembly 13. An annular air inlet duct 16 is formed between the outer rectifier ring 121, the inner rectifier ring 122, the rectifier plate 123, and the filter assembly 13. Oil fumes can be discharged through the annular air inlet duct 16.

[0055] Reference Figure 8The rectifier outer ring 121 includes a rectifier ring body 1211, which is a cylindrical column with an open center. One end of the rectifier ring body 1211 is an air inlet 1213, and the other end is an air outlet 1214. An annular protrusion 1212 is integrated with the rectifier ring body 1211 and is located on the side near the air inlet 1213. The upper end of the annular protrusion 1212 is connected to the rectifier ring body 1211. The inner wall of the port of body 1211 is connected, and the lower end of the annular protrusion 1212 is detachably connected to the upper end of the rectifier inner ring 122. Both the upper and lower ends of the annular protrusion 1212 are arc-shaped. When absorbing oil fumes, the oil fumes first pass through the upper end of the annular protrusion 1212. Since the upper end of the annular protrusion 1212 is arc-shaped, the oil fumes will flow along the arc shape and enter the connection between the annular protrusion 1212 and the rectifier inner ring 122.

[0056] Reference Figure 8 The lower end of the rectifier inner ring 122 abuts against the inner wall of the rectifier ring body 1211. The rectifier inner ring 122 has multiple sets of mounting holes 1221. Fastening structures such as screws and bolts pass through the multiple sets of mounting holes 1221 to realize the installation between the rectifier inner ring 122 and the annular protrusion 1212. The connection between the rectifier inner ring 122 and the annular protrusion 1212 is a smooth arc shape, which makes the flow direction of the oil fume more precise.

[0057] Reference Figure 7 and Figure 8 An air inlet duct 16 is formed between the inner rectifier ring 122 and the rectifier plate 123. The rectifier plate 123 includes a protrusion 1231 and a connecting portion 1232, which are connected. The connecting portion 1232 is connected to the filter assembly 13. The protrusion 1231 protrudes towards the air inlet 1213 of the rectifier ring body 1211. When oil fumes enter the rectifier ring body 1211, they hit the rectifier plate 123. Due to the rectification... The plate 123 protrudes towards the air inlet 1213. Due to the Coanda effect, the oil fumes will change their direction of movement according to the shape of the protrusion 1231, and thus move into the air inlet duct 16 along the shape of the protrusion 1231. The Coanda effect refers to the airflow changing from deviating from its original flow direction to flowing along the surface of the protruding object. When there is surface friction between the airflow and the surface of the object it flows over, as long as the curvature is not large, the airflow will flow along the surface of the object.

[0058] Reference Figure 7 and Figure 8The area of ​​the air inlet of the air inlet duct 16 is larger than the area of ​​the air outlet of the air inlet duct 16, which facilitates more oil fumes to enter the air inlet duct 16. Due to the inertia of the oil fumes, the oil fumes passing through the air inlet duct 16 will impact the inner wall of the rectifier ring body 1211. Since the oil stains in the oil fumes have a certain viscosity, the oil stains will adhere to the inner wall of the rectifier ring body 1211, thereby reducing the oil stain content in the oil fumes, so as to reduce the amount of oil stains adhering to the filter assembly 13, and thus increase the service life of the filter assembly 13.

[0059] Reference Figure 8 The filter assembly 13 includes an upper cover 131, a filter material 132, and a lower cover 133. The upper cover 131 is connected to the connecting part 1232, and the lower cover 133 is connected to the fixing base 15. The filter material 132 is disposed between the upper cover 131 and the lower cover 133. The upper cover 131, the filter material 132, and the lower cover 133 are combined to form a ventilation chamber 134. An air outlet duct 17 is formed between the filter material 132 and the inner wall of the rectifier ring body 1211. The oil fumes coming out of the air inlet duct 16 enter the ventilation chamber 134 through the side wall of the filter material 132. A vent is provided in the middle of the lower cover 133 so that the oil fumes are discharged through the vent of the lower cover 133, thereby realizing the circulation of oil fumes.

[0060] Reference Figure 8 and Figure 9 The desktop range hood body 1 also includes a connecting cover 18, which includes an outer shell 181 and a bottom wall 182. The outer shell 181 is a cylindrical shape with an opening in the middle. The lower end of the outer shell 181 is connected to the bottom wall 182. The bottom wall 182 is an annular shape with a through hole in the middle. Multiple sets of connecting blocks 1811 are provided on the inner wall of the outer shell 181. The connecting blocks 1811 are located at the end near the bottom wall 182. Multiple sets of connecting holes 1331 are provided on the lower end cover 133. The number of connecting blocks 1811 and connecting holes 1331 are the same. The lower end cover 133 is connected to the connecting blocks 1811 on the outer shell 181 through the connecting holes 1331, thereby realizing the connection between the connecting cover 18 and the filter assembly 13.

[0061] Reference Figure 8 and Figure 9 The outer wall of the outer casing 181 is provided with multiple sets of upper mounting blocks 1812, and the inner wall of the rectifier outer ring 121 is provided with multiple sets of upper mounting holes 1215. The number of upper mounting holes 1215 is the same as the number of upper mounting blocks 1812. The rectifier outer ring 121 is connected to the upper mounting blocks 1812 of the outer casing 181 through the upper mounting holes 1215, thereby realizing the connection between the rectifier outer ring 121 and the connecting cover 18.

[0062] Reference Figure 9The air intake assembly 14 includes an air intake cylinder 141 and an impeller 142. The air intake cylinder 141 and the impeller 142 are connected. The air intake cylinder 141 has multiple sets of first mounting holes 1411, and the bottom wall 182 has multiple sets of second mounting holes 1821. The number of first mounting holes 1411 and second mounting holes 1821 is the same. Fastening structures such as screws and bolts are used to connect the air intake cylinder 141 and the connecting cover 18 through the first mounting holes 1411 and the second mounting holes 1821. The bottom wall 182 is also provided with a clearance groove 1822. Screws and bolts are installed in the clearance groove 1822 to avoid obstructing the installation between the filter assembly 13 and the connecting cover 18.

[0063] Reference Figure 9 The impeller 142 includes a hub 1422 and blades 1421. The root of the blade 1421 is connected to the hub 1422, and the tip of the blade 1421 is connected to the suction cylinder 141. The root of the blade 1421 is perpendicular to the surface of the hub 1422. There are two sets of impellers 142, and the two sets of impellers 142 are installed in opposite directions.

[0064] Reference Figure 9 The fixed base 15 includes a protective cover 151 and a mounting base 152. The protective cover 151 is connected to the mounting base 152, and the mounting base 152 is connected to the air intake 141. A lower mounting hole 1511 is provided on the inner wall of the protective cover 151, and a lower mounting block 1813 is provided on the outer wall of the outer shell 181. The protective cover 151 is connected to the lower mounting block 1813 of the outer shell 181 through the lower mounting hole 1511, thereby realizing the connection between the protective cover 151 and the outer shell 181.

[0065] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A desktop range hood, characterized in that: The system includes a desktop range hood body (1), a flexible shock-absorbing traction belt (2), and a support frame assembly (3). The flexible shock-absorbing traction belt (2) includes a connecting belt (21) and multiple claws (22). The first end of the connecting belt (21) is connected to one end of the desktop range hood body (1), and the second end of the connecting belt (21) is connected to the other end of the desktop range hood body (1). The distances between the multiple claws (22) and the first end of the connecting belt (21) are all different. The support frame assembly (3) is detachably connected to any one of the multiple claws (22) so that the flexible shock-absorbing traction belt (2) suspends the desktop range hood body (1) and causes the desktop range hood body (1) to tilt at different angles.

2. A desktop range hood as described in claim 1, characterized in that: The support frame assembly (3) includes a support base (31) and a support bracket (32). One end of the support bracket (32) is connected to the support base (31), and the other end of the support bracket (32) extends upward, bends around the desktop range hood body (1), and then extends downward to connect with the support base (31). The upper end of the support bracket (32) is engaged with the claw (22).

3. A desktop range hood as described in claim 2, characterized in that: The claw (22) includes a fixing part (221) and a plugging part (222). The fixing part (221) and the plugging part (222) are combined to form a snap-fit ​​groove (223). The upper end of the support bracket (32) is snapped into the claw (22) through the snap-fit ​​groove (223).

4. A desktop range hood as described in claim 3, characterized in that: The width of the slot (223) is smaller than the cross-sectional area of ​​the support bracket (32).

5. A desktop range hood as described in claim 1, characterized in that: The plurality of said claws (22) are located on one side near the second end of said connecting strip (21).

6. A desktop range hood as described in claim 3, characterized in that: One side wall of the support bracket (32) is recessed inward to form a snap-fit ​​notch (321), the inner wall of the fixing part (221) is in contact with the snap-fit ​​notch (321), and the other side of the support bracket (32) is in contact with the inner wall of the insertion part (222).

7. A desktop range hood as described in claim 1, characterized in that: The connecting strip (21) includes a connecting strip body (211), a first connecting end (212), and a second connecting end (214). The first connecting end (212) is formed by bending one end of the connecting strip body (211) outward and connecting it to the connecting strip body (211). The second connecting end (214) is formed by bending the other end of the connecting strip body (211) outward and connecting it to the connecting strip body (211). The first connecting end (212) is provided with a first mounting port (213), and the second connecting end (214) is provided with a second mounting port (215). The connecting strip (21) is connected to the desktop range hood body (1) through the first mounting port (213) and the second mounting port (215).

8. A desktop range hood as described in claim 7, characterized in that: The flexible shock-absorbing traction belt (2) also includes two buckles (23). One buckle (23) is connected to the connecting belt body (211) to form the first connecting end (212), and the other buckle (23) is connected to the connecting belt body (211) to form the second connecting end (214). The first connecting end (212) and the second connecting end (214) are locked together by the buckle (23).

9. A desktop range hood as described in claim 8, characterized in that: The desktop range hood body (1) is provided with two traction rings (11). One traction ring (11) is connected to the first connecting end (212) through the first mounting port (213), and the other traction ring (11) is connected to the second connecting end (214) through the second mounting port (215).

10. A desktop range hood as described in claim 1, characterized in that: The desktop range hood body (1) includes a rectifier assembly (12) and a filter assembly (13). The rectifier assembly (12) includes an outer rectifier ring (121), an inner rectifier ring (122), and a rectifier plate (123). The inner wall of the outer rectifier ring (121) protrudes inward to form an annular protrusion (1212). The inner rectifier ring (122) is connected to the annular protrusion (1212). The rectifier plate (123) is connected to the filter assembly (13). An air inlet duct (16) is formed between the inner rectifier ring (122) and the rectifier plate (123). An air outlet duct (17) is formed between the outer rectifier ring (121) and the filter assembly (13). There is an angle between the air inlet duct (16) and the air outlet duct (17).

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