Washable smoke suction assembly and desktop range hood

Abstract

The utility model relates to the field of desktop range hoods, in particular to a washable smoke suction assembly and a desktop range hood. The washable smoke suction assembly comprises a smoke suction assembly, the smoke suction assembly comprises a discharging assembly and a driving assembly, the discharging assembly is provided with a smoke suction opening, a discharging opening and a discharging assembly cavity, the driving assembly is fixed to the discharging assembly cavity and comprises a driving part and a rotating part, and a connecting gap is formed between the rotating part and the driving part; when water flow enters from the smoke suction port and is discharged from the discharge port, the rotating part rotates to form suction force to drive the water flow to move towards the discharge port along the flow guide cover, and the water flow is discharged after crossing the connecting gap. The flow guide cover is arranged to wrap the connecting gap, the sealing effect is achieved, when water is used for washing, suction force generated by the rotating part guides water flow to move along the surface of the flow guide cover, cross the connecting gap and be discharged from the discharging opening, and water is prevented from flowing back into the driving part.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of desktop range hood, concretely is a kind of washable smoke suction assembly and desktop range hood. BACKGROUND

[0002] In modern family kitchen environment, range hood is the important equipment of the oil fume and peculiar smell generated in cooking process is excluded. However, the air duct inside the traditional range hood will accumulate a lot of oil and impurities after a period of use, so it is necessary to clean the inside of the range hood regularly, but the traditional range hood is still inconvenient when cleaning, first, the existing range hood needs to be disassembled from the motor before cleaning, and then the air duct is cleaned, so as to prevent the motor from being waterlogged, which will complicate the whole cleaning process and bring inconvenience to the user. In addition, the traditional range hood also has certain safety risk in the cleaning process, if the air duct is cleaned but not fully dried before reinstallation and use, water may enter the motor, causing electrical short circuit and other problems.

[0003] Therefore, it is necessary to develop a washable smoke suction assembly and desktop range hood to simplify the cleaning process of range hood. SUMMARY

[0004] In view of the problems of complex cleaning and easy to cause electrical short circuit of the range hood in the prior art mentioned above, the technical solution adopted by the utility model to solve its technical problems is:

[0005] A washable smoke suction assembly, comprising a smoke suction assembly, wherein the smoke suction assembly comprises a discharge assembly and a driving assembly connected with the discharge assembly, the discharge assembly is provided with a smoke suction port at one end, a discharge port at the other end and a discharge assembly cavity communicating the smoke suction port and the discharge port, the driving assembly is fixed in the discharge assembly cavity, the driving assembly comprises a driving part for power supply and a rotating part rotatably connected with the driving part, a connecting gap is provided between the rotating part and the driving part, the rotating part is provided with a flow guide cover for wrapping the connecting gap, during the process that water flows into the discharge assembly cavity from the smoke suction port and is discharged from the discharge port through the flow guide cover, the rotating part rotates to form suction force to drive the water flow to move along the surface of the flow guide cover to the discharge port direction, so as to be discharged from the discharge port after passing through the connecting gap.

[0006] Further, the washable smoke suction assembly of the scheme, wherein the flow guide cover is provided with a flow guide cover main body, the connecting gap is located in the flow guide cover main body, the cross-sectional width of the flow guide cover main body gradually increases along the axial direction from the smoke suction port to the discharge port, the cross section of the flow guide cover main body is conical, and the conical cross section angle α ranges from 60° to 120°.

[0007] Further, the scheme discloses a washable smoking component, wherein the exhaust component cavity is provided with a first constant-diameter section connected with the smoking port, a third constant-diameter section located between the smoking port and the exhaust port, and a first variable-diameter section connecting the first constant-diameter section and the third constant-diameter section, the third constant-diameter section has a diameter larger than that of the first constant-diameter section, the connecting gap is located in the third constant-diameter section, the distance D1 between the outer wall of the flow guide cover and the inner wall of the first variable-diameter section, and the distance D2 between the outer wall of the driving part and the inner wall of the third constant-diameter section, and D1 is 1.2-1.5 times of D2.

[0008] Further, the scheme discloses a washable smoking component, wherein the flow guide cover located on the side close to the driving part is further provided with a shielding end arranged along the circumferential side, and the shielding end is arranged in an extending mode along the axial direction of the driving part.

[0009] Further, the scheme discloses a washable smoking component, wherein the rotating part is provided with a vane connected with the flow guide cover, and the vane is arranged in an arc shape protruding towards the exhaust port.

[0010] Further, the scheme discloses a washable smoking component, wherein the vane is arranged in an inclined mode from the side close to the smoking port to the side close to the exhaust port of the flow guide cover, the central axis of the vane and the central axis of the flow guide cover form an angle β, and the angle β ranges from 30° to 60°.

[0011] Further, the scheme discloses a washable smoking component, wherein the smoking component further comprises a filter screen fixed on the smoking port, the filter screen is detachably connected with the smoking port, and the pore size of the filter screen ranges from 2 mm to 4 mm.

[0012] Further, the scheme discloses a washable smoking component, wherein the smoking component further comprises a control component used for controlling the operation of the driving component, the control component is provided with a control component connecting end connected with the side of the driving part away from the rotating part, the diameter of the control component connecting end is smaller than that of the driving part, the control component connecting end is provided with a protruding clamping connecting end, and the driving part is located in a connecting groove into which the clamping connecting end extends.

[0013] Further, the scheme discloses a washable smoking component, wherein the circumferential side of the driving part is provided with a protruding rotating part step, and the distance S1 from the shielding end to the rotating part step ranges from 1.5 mm to 2.5 mm.

[0014] Further, the scheme discloses a washable smoking component.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses, because the rotatory connection mode is used between the drive part and the rotation part, so there is the connecting gap between the drive part and the rotation part, the utility model discloses a fairing for wrapping the connecting gap is set up on the rotation part, makes the connecting gap be located in the fairing, when the user flushes the inside of the discharge assembly from the smoking mouth one side with water, the fairing can play the sealing effect to the connecting gap, in addition, after the water flow enters from the smoking mouth, the rotation part rotates and forms the suction, makes the water flow can along the fairing surface to the direction of the discharge port movement, thereby crosses the connecting gap and finally discharges from the discharge port, effectively prevents the water flow from flowing back to the fairing and entering the inside of the drive part through the connecting gap, realizes the effect that directly washes the inside of the discharge assembly without disassembling the drive assembly, avoids the problem that the traditional desktop oil fume exhaust machine needs to wash after disassembling the drive part, thereby simplifying the washing process.

[0017] The utility model will be further explained in connection with the drawings and specific embodiment. DRAWINGS

[0018] Figure 1 It is the smoking assembly appearance schematic drawing of a washable smoking assembly of the utility model.

[0019] Figure 2 It is the smoking assembly section schematic drawing of a washable smoking assembly of the utility model.

[0020] Figure 3 It is the smoking assembly section schematic drawing of a washable smoking assembly of the utility model.

[0021] Figure 4 It is the smoking assembly I part enlarged schematic drawing of a washable smoking assembly of the utility model.

[0022] Figure 5 It is the drive assembly appearance schematic drawing of a washable smoking assembly of the utility model.

[0023] Figure 6 It is the drive assembly section schematic drawing of a washable smoking assembly of the utility model.

[0024] Figure 7 It is the drive assembly II part enlarged schematic drawing of a washable smoking assembly of the utility model.

[0025] Figure 8 It is the rotation part appearance schematic drawing of a washable smoking assembly of the utility model.

[0026] Figure 9 It is the rotation part appearance schematic drawing of a washable smoking assembly of the utility model.

[0027] Figure 10The utility model discloses a rotatable part cross section schematic view of a washable smoke suction assembly.

[0028] Figure 11 The utility model discloses a desktop range hood appearance schematic view. DETAILED DESCRIPTION

[0029] The utility model discloses an embodiment will be detailed below with the drawings.

[0030] Embodiment one: as Figures 1-10 A washable smoke suction assembly, including smoke suction assembly 1, wherein the smoke suction assembly 1 includes the discharge assembly 11 and with the discharge assembly 11 connection drive assembly 12, the discharge assembly 11 is equipped with the smoke suction port 111 at one end, the discharge port 112 at the other end and the discharge assembly cavity 114 that communicates the smoke suction port 111 and discharge port 112, drive assembly 12 is fixed in discharge assembly cavity 114, drive assembly 12 includes the drive part 121 for power supply and with the rotation connection of drive part 121 rotating part 122, the rotating part 122 and drive part 121 between being equipped with connecting clearance 123, the rotating part 122 is equipped with the fairing 1221 for wrapping connecting clearance 123, when the water flow enters discharge assembly cavity 114 from the smoke suction port 111, and passes through the fairing 1221 from the discharge port 112 in the process of discharging, the rotating part 122 rotates to form suction and drive water flow to move along the surface of the fairing 1221 to the discharge port 112 direction, thereby passing through connecting clearance 123 and being discharged from the discharge port 112.

[0031] In the utility model, since drive part 121 and rotating part 122 adopt rotation connection mode, therefore drive part 121 and rotating part 122 between existing connecting clearance 123, the utility model discloses a fairing 1221 for wrapping connecting clearance 123 is arranged on rotating part 122, make connecting clearance 123 be located in the fairing 1221, when the user flushes the inside of discharge assembly 11 from the smoke suction port 111 side with water, the fairing 1221 can play the sealing effect to connecting clearance 123, in addition, after the water flow enters from the smoke suction port 111, rotating part 122 rotates to form suction, so that the water flow can move along the surface of the fairing 1221 to the discharge port 112 direction, thereby passing through connecting clearance 123 and finally being discharged from the discharge port 112, effectively prevent the water flow from flowing back to the fairing 1221 and entering the inside of drive part 121 through connecting clearance 123, realize the effect that the inside of discharge assembly 11 is directly cleaned without disassembling drive assembly 12, avoid the problem that the traditional desktop range hood can only be cleaned after disassembling drive part 121, thereby simplifying the cleaning process.

[0032] Specifically, the smoke suction assembly 1 in the utility model is combined with the driving assembly 12 through the exhaust assembly 11, and the driving part 121 and the rotating part 122 are connected in a rotating mode, so that the rotating part 122 can rotate relative to the driving part 121. Therefore, there is a connecting gap 123 between the rotating part 122 and the driving part 121. For the ordinary table-top range hood smoke suction assembly, direct washing with water will cause water to flow into the driving part 121 through the connecting gap 123, thereby causing the risk of damage or short circuit of electrical components. Therefore, the driving part 121 has to be disassembled every time when cleaning, which not only increases the operation complexity of the user, but also brings potential safety hazards. In order to prevent water from entering the driving part 121, the utility model sets a flow guide cover 1221 on the rotating part 122 to wrap the connecting gap 123, so that the connecting gap 123 is hidden in the flow guide cover 1221. When the user needs to clean the smoke suction assembly, water can be directly washed from the side of the smoke suction port 111, and at the same time, the rotating part 122 is rotated to form a suction force, so that the water flow flows along the surface of the flow guide cover 1221 to the exhaust port 112, thereby passing through the connecting gap 123 and finally being discharged from the exhaust port 112, preventing the water flow from flowing into the flow guide cover 1221 and entering the driving part 121 through the connecting gap 123. This setting enables the user to complete the effective cleaning of the inside of the exhaust assembly 11 without disassembling any part, greatly improving the cleaning efficiency and reducing the maintenance time. At the same time, the cleaning method without disassembly is more convenient and fast. Further, the rotation of the rotating part 122 can also prevent the water flow from flowing back to the smoke suction port 111, ensuring that the water flow will not flow back into the flow guide cover 1221 after flowing through the flow guide cover 1221, thereby avoiding the situation that the water flow flows into the connecting gap 123. Further, in some embodiments, the smoke suction assembly 1 located on the side of the smoke suction port 111 can also be provided with a water inlet assembly connected with a water pipe. The water inlet assembly can be detachably connected to the smoke suction assembly 1. When cleaning is needed, only the water inlet assembly and the water pipe need to be installed, and the driving assembly 12 can be started to perform the washing operation. Further, during the process of washing water to the side of the smoke suction port 111, the rotating part 122 is rotated to the smoke suction direction, which can effectively increase the water flow speed, thereby achieving more effective cleaning effect on the exhaust assembly cavity 114.

[0033] Embodiment two: further, as shown in Figures 1-10 the flow guide cover 1221 is provided with a flow guide cover body 12213, the connecting gap 123 is located in the flow guide cover body 12213, the cross-sectional width of the flow guide cover body 12213 gradually increases along the axial direction from the smoke suction port 111 to the exhaust port 112, and the cross section of the flow guide cover body 12213 is arranged in a conical shape, and the conical cross-sectional angle α ranges from 60° to 120°.

[0034] The utility model discloses the features of example one, and the difference between example one is that the utility model is hidden in the fairing main part 12213 through connecting gap 123, and the fairing main part 12213 is set as the conical structure of axial gradual expansion, and the range of conical section angle alpha is limited to 60-120 DEG, help to guide the parabolic trajectory of water flow, ensure that water flow reaches the side closer to the discharge port 112 through inertia after leaving the fairing main part 12213, further prevent the case of water flow backflow into connecting gap 123, and ensure that water flow can be smoothly discharged from the discharge port 112 after passing connecting gap 123;Further, if angle alpha is less than 60 DEG, the conical angle is too gentle, and water flow can not effectively form parabolic trajectory due to lack of enough inclined plane guide, lead to the risk of part of water flow flowing into connecting gap 123, if angle alpha is greater than 120 DEG, the conical surface of fairing main part 12213 will be too inclined, lead to water flow to be easy to produce turbulent flow or collision to the discharge assembly cavity 114 inner wall and form rebound when passing, increase the risk of water flow into driving part 121;Further, in some examples, the outer wall of fairing main part 12213 can also be arranged in a certain arc shape to better guide water flow to form parabolic trajectory and move to the side closer to the discharge port 112;Further, in the example, the conical section angle alpha is 60 DEG.

[0035] Example three: further, as shown in Figures 1-10 The discharge assembly cavity 114 is provided with a first constant diameter section 13 connected with the smoking port 111, a third constant diameter section 15 located between the smoking port 111 and the discharge port 112, and a first variable diameter section 18 connecting the first constant diameter section 13 and the third constant diameter section 15, the diameter of the third constant diameter section 15 is greater than that of the first constant diameter section 13, the connecting gap 123 is located in the third constant diameter section 15, the distance D1 between the outer wall of the fairing 1221 and the inner wall of the first variable diameter section 18, the distance D2 between the outer wall of the driving part 121 and the inner wall of the third constant diameter section 15, D1 is 1.2-1.5 times of D2.

[0036] The embodiment includes the features of embodiment two, and is different from embodiment two in that the discharge assembly cavity 114 is provided with a first constant diameter section 13 connected with the smoke inlet 111, a third constant diameter section 15 located between the smoke inlet 111 and the discharge port 112, and a first variable diameter section 18 connecting the first constant diameter section 13 and the third constant diameter section 15, wherein the third constant diameter section 15 has a diameter greater than that of the first constant diameter section 13, the connecting gap 123 is located in the third constant diameter section 15, the distance D1 between the outer wall of the flow guide cover 1221 and the inner wall of the first variable diameter section 18, and the distance D2 between the outer wall of the driving part 121 and the inner wall of the third constant diameter section 15, D1 is 1.2-1.5 times of D2. This arrangement realizes effective acceleration of water flow through reasonable space layout. When water flow enters the narrower third constant diameter section 15 from the wider first variable diameter section 18, the water flow speed increases, so that the water flow can more effectively pass through the connecting gap 123 and be discharged from the discharge port 112. At the same time, the high flow rate not only helps to remove residues in the discharge assembly cavity 114, improves the cleaning effect, but also reduces the possibility of water retention in the discharge assembly cavity 114, further enhances the waterproof performance. Further, if D1 is less than 1.2 times of D2, the space of the first variable diameter section 18 will become relatively small, resulting in insufficient acceleration effect of water flow when entering the third constant diameter section 15, and the water flow speed is not enough to effectively pass through the connecting gap 123, increasing the risk of water retention in the discharge assembly cavity 114 or seeping into the driving part 121, reducing the cleaning efficiency and waterproof performance. On the contrary, if D1 is greater than 1.5 times of D2, the excessive first variable diameter section 18 will cause the annular space of the third constant diameter section 15 to be excessively compressed, which is easy to make the water flow form turbulent flow after entering the third constant diameter section 15, thereby changing the direction of the water flow and increasing the risk of water flow entering the connecting gap 123. Further, in the embodiment, D1 is 1.2 times of D2.

[0037] Embodiment four: further, as shown in Figures 1-10 The flow guide cover 1221 located near the driving part 121 is further provided with a shielding end 12212 arranged along the circumferential side, and the shielding end 12212 is arranged to extend axially along the driving part 121.

[0038] The embodiment includes the features of embodiment three, and is different from embodiment three in that, in the utility model, the fairing 1221 located on the side close to the driving part 121 is also provided with a shielding end 12212 arranged along the circumferential side, the shielding end 12212 is arranged along the axial direction of the driving part 121 and is located at the opening of the connecting gap 123; this arrangement further enhances the protection capability of the connecting gap 123 by adding an additional shielding structure to the circumferential side of the fairing 1221; specifically, the shielding end 12212 can effectively prevent water flow from entering the connecting gap 123 from the side, and ensure that even in the case of multi-angle flushing, water will not penetrate into the inside of the driving part 121, thereby greatly reducing the electrical short circuit and other potential safety hazards; further, in some embodiments, the shielding end 12212 extends along the circumferential side of the driving part 121 and is inclined to the side of the driving part 121, thereby better shielding the connecting gap 123.

[0039] Embodiment five: further, as shown in Figures 1-10 a washable smoking assembly, wherein the rotating part 122 is provided with a blade 1222 connected with the fairing 1221, and the cross section of the blade 1222 is arranged in an arc shape protruding towards the discharge port 112.

[0040] The embodiment includes the features of embodiment four, and is different from embodiment four in that, in the utility model, the rotating part 122 is provided with a blade 1222 connected with the fairing 1221, and the cross section of the blade 1222 is arranged in an arc shape protruding towards the discharge port 112; this arrangement optimizes the shape of the blade 1222, so that the water flow can be better guided when passing through the blade 1222; specifically, the end of the blade 1222 is connected to the end of the fairing extension end 12211, so that the arc-shaped blade 1222 can push the water flow to the side of the discharge port 112 during rotation and form a stable parabolic trajectory; since the end of the blade 1222 is connected to the end of the fairing extension end 12211, when the water flow separates from the blade 1222, the water flow has already passed the opening of the connecting gap 123, so that the water flow passes through the connecting gap 123 and is discharged from the discharge port 112; further, the arc-shaped arrangement of the cross section of the blade 1222 also helps to reduce water flow resistance, so that the rotation of the rotating part 122 during cleaning is more stable and efficient; further, the end of the blade 1222 located close to the driving part 121 is arranged in a wave shape, which causes the water flow to be disturbed more when passing through the wave-shaped end of the blade 1222, thereby producing a stronger turbulent effect and more effectively flushing away grease and impurities attached to the inner wall of the discharge assembly cavity 114.

[0041] Embodiment six: further, as shown in Figures 1-10As shown in one washable smoking component, wherein the vane 1222 is inclined from the side close to the smoking port 111 to the side close to the discharge port 112 by the fairing 1221, the central axis of the vane 1222 and the central axis of the fairing 1221 form an angle β, and the angle β ranges from 30° to 60°.

[0042] The embodiment includes the features of embodiment five, and is different from embodiment five in that, in the utility model, the vane 1222 is inclined from the side close to the smoking port 111 to the side close to the discharge port 112 by the fairing 1221, the central axis of the vane 1222 and the central axis of the fairing 1221 form an angle β, and the angle β ranges from 30° to 60°. This setting can make the water flow obtain the best guiding and accelerating effect when passing through by reasonably adjusting the angle of the vane. Specifically, when the angle β is set to 30°-60°, the vane 1222 can effectively guide the water flow to form a stable parabolic trajectory along the surface of the fairing 1221 during rotation, and finally discharge from the discharge port 112 through the connecting gap 123. This inclined angle setting not only ensures that the water flow has enough power to flow along the surface of the fairing 1221, but also avoids excessive resistance or turbulence, thereby improving the drainage efficiency and cleaning effect. Further, if the angle β is less than 30°, the inclination of the vane 1222 will become relatively gentle, which will cause the water flow to lose enough thrust when passing through the vane 1222, thereby reducing the speed of the water flow to continue to penetrate the discharge assembly cavity 114. When the water flow speed is too low, it will increase the risk of water flow entering the connecting gap 123. In addition, a smaller inclination angle may cause the water flow to be insufficient, which may cause the water flow to be unable to fully flush the discharge assembly cavity 114 and remove the residues in the discharge assembly cavity 114. Further, if the angle β is greater than 60°, the inclination of the vane 1222 will be too large, which will cause the water flow to generate a large resistance and turbulence when passing through the vane, increase the complexity and instability of the water flow path, in addition, a too large inclination angle may cause the water flow to deviate from the predetermined path, and even may cause part of the water flow to directly impact the driving part 121, thereby increasing the risk of water infiltration. At the same time, a too large inclination angle will also increase the friction between the vane 1222 and the water flow, thereby reducing the overall durability of the driving assembly 12, and may increase the noise and vibration during operation of the driving assembly 12. Further, in the embodiment, the angle β is 30°.

[0043] Embodiment seven: further, as Figures 1-10 As shown in one washable smoking component, wherein the smoking component 1 further comprises a filter screen 19 fixed on the smoking port 111, the filter screen 19 is detachably connected with the smoking port 111, and the pore size of the filter screen 19 is 2-4 mm.

[0044] The embodiment includes the features of embodiment six, and is different from embodiment six in that the smoking assembly 1 further includes a filter screen 19 fixed to the smoking port 111, the filter screen 19 is detachably connected with the smoking port 111, and the aperture of the filter screen 19 is 2-4 mm. This arrangement can effectively intercept large particles of grease and impurities, prevent them from entering the inside of the discharge assembly cavity 114, reduce the amount of accumulated grease in the discharge assembly cavity 114, and thus reduce the cleaning frequency and difficulty. Further, the detachable connection of the filter screen 19 enables the user to conveniently detach and clean it, ensuring that the filter screen always maintains good filtering effect. Further, by setting the aperture of the filter screen 19 to be between 2 and 4 mm, the filter screen 19 can effectively intercept large particles without causing excessive resistance to airflow, ensuring efficient operation of the smoking assembly. Further, in the embodiment, the aperture of the filter screen 19 is 2 mm. Further, in some embodiments, the filter screen 19 is fixed to the smoking port 111 by magnetic attraction. Further, in some embodiments, the filter screen 19 is fixed to the smoking port 111 by a buckle structure.

[0045] Embodiment eight: further, as shown in Figures 1-10 a washable smoking assembly, wherein the smoking assembly 1 further includes a control assembly 16 for controlling the operation of the driving assembly 12, the control assembly 16 is provided with a control assembly connecting end 166 connected with the driving part 121 away from the rotating part 122 side, the diameter of the control assembly connecting end 166 is smaller than the diameter of the driving part 121, the control assembly connecting end 166 is provided with a protruding clamping connecting end, and the driving part 121 is located in a connecting groove for the clamping connecting end to extend into.

[0046] The embodiment includes the features of embodiment seven, and is different from embodiment seven in that, in the utility model, the driving part 121 guides the electric wire inside the control assembly connecting end 166 to the inside of the control assembly 16. This arrangement not only optimizes the internal structure layout, but also avoids the contact of the electric wire with water, improving the safety and stability of the electrical connection. Further, since the diameter of the control assembly connecting end 166 is smaller than the diameter of the driving part 121, the water flow presents a parabolic flow towards the discharge port 112 during the process of flowing through the deflector cover 1221 to the discharge port 112, so as to make the water flow pass over the connection between the driving part 121 and the control assembly connecting end 166, effectively preventing the water flow from flowing through or directly impacting the connection between the driving part 121 and the control assembly connecting end 166. Further, the cooperation of the clamping connecting end and the connecting groove not only realizes stable mechanical connection, but also forms effective sealing, preventing the water flow from entering the inside of the control assembly 16 through the connection between the driving part 121 and the control assembly connecting end 166, and improving the waterproof performance and service life of the overall device.

[0047] Embodiment Nine: Further, as shown in Figures 1-10 The distance S1 between the shielding end 12212 and the rotating part step 1211 is between 1.5 mm and 2.5 mm.

[0048] The embodiment includes the features of Embodiment Eight, and is different from Embodiment Eight in that, in the utility model, the driving part 121 is provided with a protruding rotating part step 1211, and the distance S1 between the shielding end 12212 and the rotating part step 1211 is between 1.5 mm and 2.5 mm. This arrangement reduces the space for water to flow into the connecting gap 123, thereby effectively preventing moisture from entering the driving part 121 and improving the waterproof performance of the entire smoking assembly. Specifically, when the distance S1 between the shielding end 12212 and the rotating part step 1211 is set to be between 1.5 mm and 2.5 mm, it is ensured that the shielding end 12212 can shield the connecting gap 123 as much as possible, and at the same time, the flow guide extension end 12211 can guide the water flow in the direction of the discharge port 112, thereby avoiding the entry of moisture into the connecting gap 123. Further, this arrangement also enables the rotating part 122 to rotate normally relative to the driving part 121, avoids the situation that the rotating part step 1211 and the shielding end 12212 collide to increase the rotating resistance of the rotating part 122 when the smoking assembly 1 vibrates, and effectively reduces the wear between the rotating part 122 and the driving part 121. Further, if S1 is less than 1.5 mm, the distance between the shielding end 12212 and the rotating part step 1211 is too small, which may cause friction or collision between the two during rotation, increase the noise and vibration during equipment operation, and even cause the parts to wear out more quickly and shorten the service life. If S1 is greater than 2.5 mm, the large distance will cause the shielding end 12212 to be unable to effectively cover the connecting gap 123, increasing the risk of moisture entering the driving part 121. Further, in the embodiment, the distance S1 between the shielding end 12212 and the rotating part step 1211 is 1.5 mm.

[0049] Embodiment Ten: This embodiment includes all the features of Embodiments One to Eight, and is different in that, in this embodiment, the conical cross-sectional angle a is 120°, D1 is 1.5 times D2, the angle β is 60°, the filter screen 19 has a pore size of 4 mm, and the distance S1 between the shielding end 12212 and the rotating part step 1211 is 2.5 mm.

[0050] Embodiment Eleven: This embodiment includes all the features of Embodiments One to Eight, and is different in that, in this embodiment, the conical cross-sectional angle a is 80°, D1 is 1.3 times D2, the angle β is 45°, the filter screen 19 has a pore size of 3 mm, and the distance S1 between the shielding end 12212 and the rotating part step 1211 is 2 mm.

[0051] Embodiment twelve: further, as shown in the desktop range hood, comprising a washable smoke suction assembly. Figures 1-11

[0052] The embodiment includes all the features of embodiments one to eleven, the difference is that the utility model discloses a washable smoke suction assembly in the desktop range hood. Specifically, a washable smoke suction assembly is integrated in the desktop range hood, and a base connected with the smoke suction assembly 1, the base is waterproofed, and the connection between the smoke suction assembly 1 and the base is sealed, the water can be directly sprayed on the smoke suction port 111 of the smoke suction assembly 1 through the setting of the flow guide cover 1221 and the blade 1222 etc. on the smoke suction assembly 1, and the connection gap 123 is shielded by the flow guide cover 1221, which can effectively prevent the moisture from entering the driving part 121, thereby simplifying the cleaning process and improving the cleaning effect, this setting not only solves the problem of inconvenient cleaning of the traditional range hood, but also effectively improves the safety and durability of the equipment.

[0053] The above is only to further illustrate the technical content of the utility model with examples, so that the reader is easier to understand, but does not represent the embodiment of the utility model is limited to this, any technical extension or re-creation made according to the utility model is protected by the utility model. The protection scope of the utility model is subject to the claims.​

Claims

1. A washable smoking assembly comprising a smoking assembly (1), characterised in that: The smoking assembly (1) comprises a discharge assembly (11) and a driving assembly (12) connected with the discharge assembly (11), the discharge assembly (11) is provided with a smoking port (111) at one end, a discharge port (112) at the other end, and a discharge assembly cavity (114) communicating the smoking port (111) and the discharge port (112), the driving assembly (12) is fixed in the discharge assembly cavity (114), the driving assembly (12) comprises a driving part (121) for power supply and a rotating part (122) rotationally connected with the driving part (121), a connecting gap (123) is arranged between the rotating part (122) and the driving part (121), the rotating part (122) is provided with a flow guide cover (1221) for wrapping the connecting gap (123), when water flows from the smoking port (111) into the discharge assembly cavity (114) and is discharged from the discharge port (112) through the flow guide cover (1221), the rotating part (122) rotates to form a suction force to drive the water flow to move along the surface of the flow guide cover (1221) to the discharge port (112), so as to be discharged from the discharge port (112) after passing through the connecting gap (123).

2. A washable smoking component according to claim 1, wherein: The flow guide cover (1221) is provided with a flow guide cover body (12213), the connecting gap (123) is located in the flow guide cover body (12213), the cross-sectional width of the flow guide cover body (12213) gradually increases along the axial direction from the smoking port (111) to the discharge port (112), and the cross section of the flow guide cover body (12213) is conical, and the conical cross section angle α is in the range of 60°-120°.

3. A washable smoking component according to claim 1, wherein: The discharge assembly cavity (114) is provided with a first constant diameter section (13) connected with the smoking port (111), a third constant diameter section (15) located between the smoking port (111) and the discharge port (112), and a first variable diameter section (18) connecting the first constant diameter section (13) and the third constant diameter section (15), the diameter of the third constant diameter section (15) is greater than that of the first constant diameter section (13), the connecting gap (123) is located in the third constant diameter section (15), the distance D1 between the outer wall of the flow guide cover (1221) and the inner wall of the first variable diameter section (18), and the distance D2 between the outer wall of the driving part (121) and the inner wall of the third constant diameter section (15), D1 is 1.2-1.5 times of D2.

4. A washable smoking component according to claim 1, wherein: The flow guide cover (1221) located close to the driving part (121) side is further provided with a shielding end (12212) arranged along the circumferential side, and the shielding end (12212) is arranged in extension along the axial direction of the driving part (121).

5. A washable smoking component according to claim 1, wherein: The rotating part (122) is provided with a blade (1222) connected with the flow guide cover (1221), and the cross section of the blade (1222) is arranged in an arc shape protruding towards the discharge port (112).

6. A washable smoking component according to claim 5, wherein: The vane (1222) is arranged to be inclined from the side close to the smoking port (111) to the side close to the discharge port (112), the central axis of the vane (1222) forms an angle β with the central axis of the deflector (1221), and the angle β ranges from 30° to 60°.

7. A washable smoking component according to claim 1, wherein: The smoking assembly (1) further comprises a filter screen (19) fixed to the smoking port (111), the filter screen (19) is detachably connected to the smoking port (111), and the aperture of the filter screen (19) ranges from 2 mm to 4 mm.

8. A washable smoking component according to claim 1, wherein: The smoking assembly (1) further comprises a control assembly (16) for controlling the operation of the driving assembly (12), the control assembly (16) is provided with a control assembly connecting end (166) connected to the driving part (121) away from the rotating part (122), the diameter of the control assembly connecting end (166) is smaller than the diameter of the driving part (121), the control assembly connecting end (166) is provided with a protruding clamping connecting end, and the driving part (121) is located in a connecting groove into which the clamping connecting end extends.

9. A washable smoking component according to claim 4, wherein: The rotating part (122) is provided with a protruding rotating part step (1211) on the side of the driving part (121), and the distance S1 from the shielding end (12212) to the rotating part step (1211) ranges from 1.5 mm to 2.5 mm.

10. A table top extractor characterised in that: A washable smoking assembly comprising any one of claims 1-9.

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