A water filtering vacuum cleaner

Abstract

A water filtering vacuum cleaner comprises a trash can, a fan, a suction nozzle, a straw, and a filter assembly, wherein the filter assembly comprises a guide baffle and a dust removal liquid; the garbage coming out of the straw outlet is guided downward into the dust removal liquid through the guide baffle along with the air flow, and the garbage and dust will be retained in the dust removal liquid, and the relatively clean air will be discharged through the fan after coming out of the dust removal liquid. The present invention can achieve that when the air and water in the trash can come into contact, the relative speed of the air and water is lower, and the generation of water mist and the splashing of water are effectively suppressed, and the water mist is not easily discharged to the outside of the vacuum cleaner through the fan; and the vacuum cleaner has stronger suction and lower energy consumption; the water absorption capacity is larger, which is not only suitable for sucking dust and dry garbage, but also very suitable for water absorption operations; the vacuum cleaner has a simple structure and lower manufacturing cost; there is no filtering consumables, and the use cost is lower.

Description

Technical Field

[0001] The invention relates to a dust separation device for a vacuum cleaner, in particular to a vacuum cleaner which uses a water medium to remove dust from air. Background Art

[0002] Dust from traditional vacuum cleaners can only be filtered through dust bag filtration devices or filter cartridges, and dust bags and filter cartridges are accessories that are easily clogged and worn. Frequent cleaning or replacement of dust bags and filter cartridges causes great waste. Due to the unreasonable structural design of existing water-filtering vacuum cleaners, the following three different solutions have different advantages and disadvantages:

[0003] Solution 1, see patent application CN200720309205, water filtering vacuum cleaner.

[0004] The feature of the scheme is that the outlet of the suction pipe is below the water surface, and the direction of the air outlet is downward, that is, the air flow is blown downward from underwater.

[0005] Advantages: Air and water are stirred violently, the mixing effect is good, and the dust removal effect is good at the beginning of operation.

[0006] shortcoming:

[0007] 1) The outlet of the straw is below the water surface, the air flow rate is high, and the relative speed when it contacts the water is large, which makes it very easy to produce water mist.

[0008] 2) All the water is moving at high speed with the air, and this part of the kinetic energy will eventually turn into heat energy and be dissipated. Water consumes a lot of energy, so the vacuum cleaner has poor suction power and high energy consumption.

[0009] 3) High-speed airflow hits the bottom of the pool downward, and all the water is stirred rapidly. All water bodies are equally turbid. As the dust increases, the dirty water fails to meet the requirements of clean air more quickly, and vacuuming operations cannot continue.

[0010] 4) The high-speed airflow hits the bottom of the pool downward, and the airflow is broken into tiny bubbles, which take longer to precipitate from the water. In addition, this causes the aqueous solution to become foamy as a whole, and the water surface height is significant. The overall height of the vacuum cleaner is limited, and water can easily enter the motor or be discharged from the vacuum cleaner through the fan.

[0011] Plan 1 has basically no practical value and has been eliminated by the market.

[0012] Solution 2, CN201621298322, a water filtering vacuum cleaner:

[0013] The solution is characterized in that the outlet of the suction pipe is below the water surface and close to the water surface, and the direction of the air outlet is upward, that is, the air flow is blown upward from underwater.

[0014] Advantages: Garbage is deposited in the lower layer of water due to gravity, and the water in the upper layer is relatively cleaner. Since the air is only stirred and mixed with the water in the upper layer, the flow rate of the water in the lower layer is very low or even static, so the water used to filter the air is relatively clean. Compared with solution 1, bubbles only exist in the upper layer of water, the water is not easy to turn into an overall foam state, and the water level is relatively stable.

[0015] shortcoming:

[0016] 1) The outlet of the suction tube is below the water surface, the air flow rate is high, and the relative speed when it contacts the water is large, which easily generates water mist and causes water splashes. The high-speed airflow easily brings the splashed water droplets and water mist into the motor, causing motor failure. At the same time, it also brings a large amount of water mist out of the exhaust port, affecting use.

[0017] 2) High-speed airflow is ejected upward from underwater close to the water surface. The contact time between air and water is very short, and the air flow field is cylindrical. The surrounding air and water are in full contact, but the airflow and water in the center of the cylinder are not in full contact. Some dust cannot contact the water and directly rises along the airflow, and then is discharged from the vacuum cleaner through the centrifugal fan. The water filtration effect is poor.

[0018] 3) In order to suppress the rise of water droplets, a water baffle must be installed in the path of rising airflow. However, a water baffle with a simple structure has a poor water-blocking effect. Conversely, a water baffle with a better water-blocking effect has a complex structure, high cost, and significantly increases the air flow resistance, resulting in poor suction of the vacuum cleaner.

[0019] 4) Because the trash can needs to be disassembled for cleaning after the operation is completed, the trash can, the air duct inside the can, the water baffle, etc. must be made into separate parts, and the air duct and the air channel of the trash can wall must be sealed. These requirements lead to complex component structure of the water filtration module, high manufacturing cost, inconvenient disassembly and assembly, and difficult cleaning.

[0020] 5) If this vacuum cleaner is used to absorb water, the water level in the trash can will rise, and the air outlet of the air inlet will continue to move away from the water surface from the position close to the water surface, which will cause an effect similar to that of Scheme 1, that is, a large number of bubbles dissolved in the water body are not easy to precipitate quickly, and the water body becomes foamy, causing the water level to rise rapidly, and water can easily enter the motor or fly out of the vacuum cleaner through the fan. Compared with dust bag vacuum cleaners or filter barrel vacuum cleaners with the same trash can volume, the water filter vacuum cleaner using Scheme 2 has a much smaller water absorption capacity.

[0021] Currently, mainstream water-filtering vacuum cleaners on the market all adopt this solution.

[0022] Solution 3, CN201621298669, a water filtering vacuum cleaner with a cyclone mixing device:

[0023] The solution is characterized in that the outlet of the straw is below the water surface and close to the water surface, and the air outlet blows out horizontally, causing the water body to rotate in the horizontal plane.

[0024] advantage:

[0025] 1) Compared with Scheme 2, the air and water produce a horizontal rotating mixing effect, the relative speed difference between the air and water is smaller, and the splashing phenomenon is weakened; the air and water are in contact for a longer time, and the filtering and cleaning effect of water on the air is better.

[0026] 2) Similar to Scheme 2, the air outlet of the air inlet is close to the water surface, bubbles only exist in the upper layer of the water, the water is not easy to turn into an overall foam state, and the water level is relatively stable.

[0027] shortcoming:

[0028] 1) Similar to Solution 2, the outlet of the suction tube is below the water surface, the air flow rate is high, and the relative speed when it contacts the water is large, which easily generates water mist and causes water splashes. The high-speed airflow easily brings the splashed water droplets and water mist into the motor, causing motor failure. At the same time, it also brings a large amount of water mist out of the exhaust port, affecting use.

[0029] 2) Similar to Option 2, these components used for water filtration still need to be split and ensure that the air duct and the air channel of the trash can wall are sealed. These requirements lead to problems such as complex component structure of the water filtration module, high manufacturing cost, inconvenient disassembly and assembly, and difficulty in cleaning.

[0030] 3) Similar to Scheme 2, the water absorption capacity of the water filter vacuum cleaner using Scheme 3 is much smaller than that of a dust bag type vacuum cleaner or a filter barrel type vacuum cleaner with the same trash can volume.

[0031] 4) The air outlet of the air inlet is below the water surface. In order to achieve the water rotation effect, the flow area of ​​the air outlet of the air inlet cannot be too large, so the relative speed of air and water is still very high, and obvious splashing will still occur.

[0032] To sum up all three solutions above, there is a fundamental problem: when air and water come into contact, the relative speed of air and water is very high, which leads to two disadvantages:

[0033] First, water can be easily broken into tiny droplets and mist, which can easily follow the airflow to the inside of the motor or fly to the outside of the vacuum cleaner through the fan.

[0034] Second, according to the kinetic energy theorem, kinetic energy is equal to mass multiplied by the square of velocity, that is, the kinetic energy of water is proportional to the velocity of water. The greater the air velocity in contact with water, the greater the velocity and kinetic energy of water; and this part of the energy of water cannot be used for vacuuming, and is wasted, resulting in poor suction power of the vacuum cleaner and high energy consumption. Summary of the invention

[0035] The object of the present invention is to provide a water filtering vacuum cleaner, which can achieve a lower relative speed of air and water when the air and water come into contact in a garbage bin, effectively suppress the generation of water mist and splashing of water, and the water mist is not easily discharged to the outside of the vacuum cleaner through a fan; and the vacuum cleaner has stronger suction power and lower energy consumption; the water absorption capacity is larger, which is not only suitable for sucking dust and dry garbage, but also very suitable for water absorption operations; the vacuum cleaner has a simple structure and a lower manufacturing cost; there is no filtering consumables, and the use cost is lower.

[0036] In order to achieve the above object, the present invention adopts the following technical solution:

[0037] A water filtering vacuum cleaner comprises a trash can 3, a fan 4, a suction nozzle, a straw 6, and a filter assembly, wherein the suction nozzle is connected to the straw 6, the straw 6 is connected to the trash can 3, and the trash can 3 is connected to the fan 4; the fan 4 generates negative pressure when it is working, and the garbage is carried by the airflow from the suction nozzle through the straw 6 to the inside of the trash can 3; the filter assembly comprises a guide baffle 712 and a dust removal liquid 9; the garbage coming out of the outlet of the straw 6 is guided downward by the airflow through the guide baffle 712 to enter the dust removal liquid 9, and the garbage and dust will be retained in the dust removal liquid 9, and the relatively clean air will be discharged through the fan 4 after coming out of the dust removal liquid 9.

[0038] Preferably, the guide baffle 712 divides the trash can 3 into two types of chambers, namely the air inlet chamber 705 and the air outlet chamber 706; the air inlet chamber 705 is connected to the outlet of the suction tube 6, and the air outlet chamber 706 is connected to the inlet of the fan 4. The upper parts of the air inlet chamber 705 and the air outlet chamber 706 are separated and disconnected by the guide baffle 712, and the air inlet chamber 705 and the air outlet chamber 706 are connected at the bottom of the trash can 3. There is dust removal liquid 9 at the connection point, and the dust removal liquid 9 isolates the air of the two chambers; the outlet height of the suction tube 6 is higher than the liquid level of the dust removal liquid 9.

[0039] Preferably, the shape of the guide baffle 712 is a square barrel, a round barrel, a truncated cone, or a frustum. The garbage at the outlet of the suction tube 6 follows the airflow downward from one side of the guide baffle 712 into the dust removal liquid 9, passes through the guide baffle 712 or bypasses the lower edge of the guide baffle 712, and then rises from the dust removal liquid 9 on the other side of the guide baffle 712 to reach the inlet of the fan 4.

[0040] Preferably, the lower periphery of the guide baffle 712 is curved, wrinkled, or arranged in a circuitous manner. The guide baffle 712 is made into such a shape, the purpose of which is to increase the area of ​​the airflow channel as much as possible and reduce the average speed of the airflow; to increase the circumference of the airflow channel as much as possible, so that the airflow enters the dust removal liquid 9 in a thin layer as much as possible, increase the contact area between the air and the dust removal liquid 9, improve the dust removal effect, reduce the relative speed difference when the air and the dust removal liquid 9 contact, reduce the generation of waves and droplets, reduce the kinetic energy of the dust removal liquid 9, and reduce the air energy loss, that is, to increase the suction force of the nozzle and reduce the energy consumption of the vacuum cleaner.

[0041] Preferably, the lower section of the guide baffle 712 is provided with a gas breaking channel so that the air can enter the dust removal liquid 9 after breaking, thereby achieving a better dust removal effect. The gas breaking channel 7121 can be a small hole or a triangular notch breaking channel, and the airflow passes through the guide baffle 712 or bypasses the lower edge of the guide baffle 712.

[0042] Preferably, the guide baffle 712 is provided with a gas guide groove 7125 near the outlet of the suction pipe 6 to divert the gas from the outlet of the suction pipe 6 to one side, two sides, up and down, or all around.

[0043] Preferably, the portion of the suction pipe 6 entering the trash can 3 is provided with a bend pipe, which can guide the airflow to rotate around the space between the guide baffle 712 and the trash can 3, and the garbage settles along the wall of the trash can 3 under the action of centrifugal force.

[0044] Preferably, along the direction of the airflow, after the guide baffle 712 and before the inlet of the fan 4, a secondary filter device 741 is provided; the air coming out of the dust removal liquid is filtered by the secondary filter device 741, and after the droplets and residual dust are filtered by the secondary filter device 741, the clean air is discharged through the fan. The air first passes through the dust removal liquid 9, and most of the dust and garbage are left in the dust removal liquid 9, and only the residual fine dust will reach the secondary filter device 741 along the airflow, which increases the service life of the secondary filter device 741.

[0045] Preferably, the dust removal liquid 9 is preferably clean water, and a synergist is added to improve the water cleaning performance when necessary. The synergist can be a defoamer, a deodorant, etc.

[0046] Preferably, the dust removal liquid 9 is poured out, the guide baffle 712 is removed, and a porous filter device is installed at the inlet of the fan 4, so that the dust collection operation can be performed like an existing ordinary vacuum cleaner.

[0047] Preferably, the horizontal cross-sectional area of ​​the air inlet bin 705 is A1, and the horizontal cross-sectional area of ​​the air outlet bin 706 is A2, and A1&l t;A2 is set. That is, the effective air circulation area of ​​the air inlet bin 705 is smaller than the effective air circulation area of ​​the air outlet bin 706, and the average air flow rate of the air inlet bin 705 is greater than the average air flow rate of the air outlet bin 706, and the droplets have relatively more time to settle by gravity in the air outlet bin 706.

[0048] Preferably, the shape of the trash can 3 is a cylinder or an inverted frustum, and the guide baffle 712 is supported on the upper edge of the trash can 3. The upper edge of the guide baffle 712 and the upper edge of the trash can 3 are in contact and sealed, so as to achieve the effect of isolating the air inlet bin 705 and the air outlet bin 706 at the top and making them disconnected.

[0049] Preferably, at the portion where the guide baffle 712 faces the outlet of the suction tube, the guide baffle 712 is in an asymmetric structure in the horizontal direction, and the airflow rotates horizontally under the guidance of the asymmetric structure, and the garbage settles along the wall of the garbage bin 3 under the action of centrifugal force.

[0050] Preferably, the initial liquid level of the dust removal liquid 9 is slightly higher than the lower edge of the guide baffle 712 .

[0051] Preferably, the outlet section of the suction pipe 6 is a straight pipe, and the air outlet direction of the suction pipe 6 outlet is horizontally tangent to the outer edge of the side wall of the garbage can 3. The airflow rotates around the space between the guide baffle 712 and the garbage can 3, and the garbage settles along the cylinder wall under the action of centrifugal force.

[0052] Preferably, the secondary filtering device 741 and the pore filtering device refer to conventional dust bags, filter barrels, or sponges.

[0053] Preferably, inside the trash can 3, in the air outlet chamber 706, before the fan inlet 401, a liquid baffle is provided to further prevent the droplets from rising and entering the fan 4.

[0054] In summary, the present invention provides a water filtering vacuum cleaner having the following advantages:

[0055] 1) When the air and water in the trash can come into contact, the relative speed of the air and water is lower, which effectively suppresses the generation of water mist and splashing of water, and the water mist is not easily discharged to the outside of the vacuum cleaner through the fan;

[0056] 2) The water has a low velocity and low kinetic energy, so the water has less energy loss, the vacuum cleaner has stronger suction power and lower energy consumption;

[0057] 3) It has a larger water absorption capacity, which is not only suitable for sucking dust and dry garbage, but also very suitable for water absorption operations;

[0058] 4) The vacuum cleaner has a simple structure and lower manufacturing cost;

[0059] 5) No filter consumables, lower cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 is a simplified structural diagram and air flow diagram of Example 1;

[0061] Figure 2 is a simplified structural diagram of Embodiment 2;

[0062] Figure 3 is a simplified structural diagram of Embodiment 3;

[0063] Figure 4 is a simplified structural diagram of Embodiment 4;

[0064] Figure 5 is a simplified structural diagram of Embodiment 5;

[0065] Figure 6 is a simplified structural diagram of Example 6;

[0066] Figure 7 is a simplified structural diagram of the guide baffle in Example 6;

[0067] Figure 8 is a simplified structural diagram of Example 7;

[0068] Fig. 9 It is the first detailed scheme of the planar development structure diagram of the gas breaking channel of the guide baffle in Examples 1 to 7;

[0069] Fig.10 It is a second refinement of the planar unfolded structural diagram of the gas fragmentation channel of the guide baffle in Examples 1 to 7.

[0070] In the figure:

[0071] 3. Trash can; 4. Fan; 401. Fan inlet; 402. Fan outlet; 6. Suction tube; 705. Air inlet bin; 706. Air outlet bin; 712. Guide baffle; 7121. Gas crushing channel; 7125. Gas guide groove; 741. Secondary filtration device; 9. Dust removal liquid. DETAILED DESCRIPTION

[0072] A water filtering vacuum cleaner of the present invention will be described in further detail below.

[0073] The present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein and still achieve the beneficial effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

[0074] For the sake of clarity, not all features of actual embodiments are described. In the following description, well-known functions and structures are not described in detail because they would clutter the invention with unnecessary detail. It should be recognized that in the development of any actual embodiment, a large number of implementation details must be made to achieve the developer's specific goals, such as changing from one embodiment to another according to the limitations of the relevant system or the relevant business. In addition, it should be recognized that such development work may be complex and time-consuming, but it is just a routine task for those skilled in the art.

[0075] In order to make the purpose and features of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0076] See also Figures 1 to 10 , the specific implementation modes of the present invention are further described.

[0077] The purpose of the present invention is to provide a water filtering vacuum cleaner, which can achieve a lower relative speed of air and water when the air and water in the trash can come into contact, effectively suppress the generation of water mist and water splashing, and the water mist is not easily discharged to the outside of the vacuum cleaner through the fan; and the vacuum cleaner has stronger suction power and lower energy consumption; the water absorption capacity is larger, which is not only suitable for sucking dust and dry garbage, but also very suitable for water absorption operations; the vacuum cleaner has a simple structure and lower manufacturing cost; there is no filtering consumables, and the use cost is lower. .

[0078] In order to achieve the above object, the present invention adopts the following technical solution:

[0079] A water filtering vacuum cleaner comprises a trash can 3, a fan 4, a suction nozzle, a straw 6, and a filter assembly, wherein the suction nozzle is connected to the straw 6, the straw 6 is connected to the trash can 3, and the trash can 3 is connected to the fan 4; the fan 4 generates negative pressure when it is working, and the garbage is carried by the airflow from the suction nozzle through the straw 6 to the inside of the trash can 3; the filter assembly comprises a guide baffle 712 and a dust removal liquid 9; the garbage coming out of the outlet of the straw 6 is guided downward by the airflow through the guide baffle 712 to enter the dust removal liquid 9, and the garbage and dust will be retained in the dust removal liquid 9, and the relatively clean air will be discharged through the fan 4 after coming out of the dust removal liquid 9.

[0080] The guide baffle 712 divides the trash can 3 into two types of chambers, namely the air inlet chamber 705 and the air outlet chamber 706; the air inlet chamber 705 is connected to the outlet of the suction tube 6, and the air outlet chamber 706 is connected to the inlet of the fan 4. The upper parts of the air inlet chamber 705 and the air outlet chamber 706 are separated and disconnected by the guide baffle 712. The air inlet chamber 705 and the air outlet chamber 706 are connected at the bottom of the trash can 3, and there is dust removal liquid 9 at the connection point, which isolates the air of the two chambers; the outlet height of the suction tube 6 is higher than the liquid level of the dust removal liquid 9.

[0081] The guide baffle 712 has a square barrel shape, a round barrel shape, a truncated cone shape, or a frustum shape. The garbage at the outlet of the suction tube 6 follows the air flow downward from one side of the guide baffle 712 into the dust removal liquid 9, passes through the guide baffle 712 or bypasses the lower edge of the guide baffle 712, and then rises from the dust removal liquid 9 on the other side of the guide baffle 712 to reach the inlet of the fan 4.

[0082] The lower periphery of the guide baffle 712 is curved, wrinkled, or arranged in a circuitous manner. The guide baffle 712 is made into such a shape, the purpose of which is to increase the area of ​​the airflow channel as much as possible and reduce the average speed of the airflow; to increase the circumference of the airflow channel as much as possible, so that the airflow enters the dust removal liquid 9 in a thin layer as much as possible, increase the contact area between the air and the dust removal liquid 9, improve the dust removal effect, reduce the relative speed difference when the air and the dust removal liquid 9 contact, reduce the generation of waves and droplets, reduce the kinetic energy of the dust removal liquid 9, and reduce the air energy loss, that is, to increase the suction force of the suction nozzle and reduce the energy consumption of the vacuum cleaner.

[0083] The lower section of the guide baffle 712 is provided with a gas breaking channel so that the air can enter the dust removal liquid 9 after breaking, thereby achieving a better dust removal effect. The gas breaking channel 7121 can be a small hole or a triangular notch breaking channel, and the airflow passes through the guide baffle 712 or bypasses the lower edge of the guide baffle 712.

[0084] The guide baffle 712 is provided with a gas guide groove 7125 near the outlet of the suction pipe 6 to divert the gas from the outlet of the suction pipe 6 to one side, two sides, up and down, or all around.

[0085] The portion of the suction pipe 6 entering the trash can 3 is provided with a bend pipe, which can guide the airflow to rotate around the space between the guide baffle 712 and the trash can 3, and the garbage settles along the wall of the trash can 3 under the action of centrifugal force.

[0086] Along the direction of the airflow, after the guide baffle 712 and before the inlet of the fan 4, a secondary filter device 741 is provided; the air coming out of the dust removal liquid is filtered by the secondary filter device 741, and after the droplets and residual dust are filtered by the secondary filter device 741, the clean air is discharged through the fan. The air first passes through the dust removal liquid 9, and most of the dust and garbage are left in the dust removal liquid 9, and only the residual fine dust will reach the secondary filter device 741 along the airflow, which increases the service life of the secondary filter device 741.

[0087] The dust removal liquid 9 is preferably clean water, and a synergist is added when necessary to improve the water cleaning performance. The synergist can be a defoamer, a deodorant, etc.

[0088] The dust removal liquid 9 is poured out, the guide baffle 712 is removed, and a porous filter device is installed at the inlet of the fan 4, and the dust collection operation can be performed like an existing ordinary vacuum cleaner.

[0089] The horizontal cross-sectional area of ​​the air inlet bin 705 is A1, and the horizontal cross-sectional area of ​​the air outlet bin 706 is A2, and A1&l t;A2 is set. That is, the effective air circulation area of ​​the air inlet bin 705 is smaller than the effective air circulation area of ​​the air outlet bin 706, and the average air flow rate of the air inlet bin 705 is greater than the average air flow rate of the air outlet bin 706, and the droplets have relatively more time to settle by gravity in the air outlet bin 706.

[0090] The shape of the trash can 3 is a cylinder or an inverted truncated cone, and the guide baffle 712 is supported on the upper edge of the trash can 3. The upper edge of the guide baffle 712 and the upper edge of the trash can 3 are in contact and sealed, thereby achieving the effect of isolating the air inlet bin 705 and the air outlet bin 706 at the top and making them disconnected.

[0091] At the point where the guide baffle 712 faces the outlet of the suction tube, the guide baffle 712 forms an asymmetric structure in the horizontal direction. The airflow rotates horizontally under the guidance of the asymmetric structure, and the garbage settles along the wall of the garbage bin 3 under the action of centrifugal force.

[0092] The initial liquid level of the dust removal liquid 9 is slightly higher than the lower edge of the guide baffle 712 .

[0093] The outlet section of the suction pipe 6 is a straight pipe, and the air outlet direction of the suction pipe 6 outlet is horizontally tangent to the outer edge of the side wall of the garbage can 3. The airflow rotates around the space between the guide baffle 712 and the garbage can 3, and the garbage settles along the wall of the cylinder under the action of centrifugal force.

[0094] The secondary filtering device 741 and the pore filtering device refer to conventional dust bags, filter barrels, or sponges.

[0095] Inside the trash can 3, in the air outlet chamber 706, before the fan inlet 401, a liquid baffle is provided to further prevent the mist droplets from rising and entering the fan 4.

[0096] Figure 1It is a simplified structural diagram and air flow diagram of Example 1. The suction pipe 6 enters the interior of the trash can 3 from the side wall of the trash can 3. The outlet of the suction pipe 6 is a straight pipe. The guide baffle 712 is a cylindrical structure, which divides the trash can 3 into an air inlet bin 705 and an air outlet bin 706. The upper sections of these two parts are not connected, but the lower sections are connected. There is a dust removal liquid 9 at the connection point, and the dust removal liquid 9 isolates the air between the two bins. The initial height of the dust removal liquid 9 is slightly higher than the lower edge of the guide baffle 712. The air coming out of the outlet of the suction pipe 6 must descend into the dust removal liquid 9 to bypass the guide baffle 712, and the dust and garbage in the air flow are dissolved in the dust removal liquid 9. A secondary filtering device 741 is provided at the fan inlet 401, which can be a filter barrel, to further filter the residual dust and droplets in the air, so that the air coming out of the fan outlet 402 is cleaned.

[0097] Figure 2 It is a simplified structural diagram of Embodiment 2. The outlet of the suction pipe 6 has a bend, and the airflow direction at the outlet is horizontally tangent to the side wall of the trash can 3, and the airflow will produce a horizontal rotation effect in the air inlet bin 705 to prevent the high-speed airflow from directly impacting the dust removal liquid 9.

[0098] Figure 3 It is a simplified structural diagram of Embodiment 3. At the outlet of the suction pipe 6, the guide baffle 712 is provided with a gas guide groove 7125, which guides the air flow to both sides, thereby reducing air energy loss.

[0099] Figure 4 It is a simplified structural diagram of embodiment 4. At the outlet of the suction pipe 6 , the guide baffle 712 has an asymmetric gas guide groove 7125 , which guides the airflow to one side, can reduce air energy loss, and promote the airflow to generate horizontal rotation in the air inlet bin 705 .

[0100] Figure 5 : is a simplified structural diagram of Embodiment 5. The overall shape of the guide baffle 712 is an inverted truncated cone. The air flow area of ​​the upper section of the air outlet bin 706 is larger than that of the lower section, and the average air velocity of the upper section is lower, which is more conducive to the gravity settling of the droplets and reduces the probability of the droplets being discharged from the fan 4. In addition, at the outlet of the suction pipe 6, the guide baffle 712 has a gas guide groove 7125 to guide the air flow to both sides.

[0101] Figure 6It is a structural diagram of Example 6. The lower half of the guide baffle 712 adopts a design of multiple folds / circles / bends. The purpose is to increase the area of ​​the airflow channel as much as possible and reduce the average speed of the airflow; increase the circumference of the airflow channel as much as possible, let the airflow enter the dust removal liquid 9 in a thin layer as much as possible, increase the contact area between the air and the dust removal liquid 9, improve the dust removal effect, reduce the relative speed difference when the air and the dust removal liquid 9 contact, reduce the generation of waves and droplets, reduce the kinetic energy of the dust removal liquid 9, and reduce the air energy loss, that is, to increase the suction force of the nozzle and reduce the energy consumption of the vacuum cleaner.

[0102] Figure 7 This is a simplified structural diagram of the guide baffle in Example 6.

[0103] Figure 8 It is a simplified structural diagram of Example 7. Figure 8 and Figure 1 The air flow routes are different. The air inlet bin 705 is located at the center of the trash can, and the air outlet bin 706 is located at the annular space near the side wall of the trash can 3. The outlet of the suction pipe 6 enters the interior of the guide baffle 712 through an extended tube.

[0104] Fig. 9 It is the first refinement of the planar development structural diagram of the gas breaking channel of the guide baffle in Examples 1 to 7. The gas breaking channel 7121 is composed of a plurality of circular holes arranged in the lower section of the guide baffle 712. The small holes can assist the air and the dust removal liquid 9 to contact more fully, thereby improving the dust removal effect.

[0105] Fig.10 This is a second refinement of the planar development structural diagram of the gas breaking channel of the guide baffle in Examples 1 to 7. The gas breaking channel 7121 is composed of a plurality of triangular notches arranged in the lower section of the guide baffle 712. These notches can assist the air and the dust removal liquid 9 to contact more fully, thereby improving the dust removal effect. The shape of the notch can also be a long rectangular shape, etc., with similar principles and effects.

[0106] In summary, the present invention provides a water filtering vacuum cleaner, which can achieve a lower relative speed of air and water when the air and water come into contact in the trash can, effectively suppress the generation of water mist and splashing of water, and the water mist is not easily discharged to the outside of the vacuum cleaner through the fan; and the vacuum cleaner has stronger suction power and lower energy consumption; the water absorption capacity is larger, not only suitable for sucking dust and dry garbage, but also very suitable for water absorption operations; the vacuum cleaner has a simple structure and lower manufacturing cost; there is no filtering consumables, and the use cost is lower.

[0107] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A water filtering vacuum cleaner, comprising a trash can (3), a fan (4), a suction nozzle, a suction pipe (6), and a filtering component, wherein: The suction nozzle is connected to the suction pipe (6), the suction pipe (6) is connected to the trash can (3), and the trash can (3) is connected to the fan (4); the fan (4) generates negative pressure when in operation, and the garbage is carried along with the airflow from the suction nozzle through the suction pipe (6) to the inside of the trash can (3); the filter assembly comprises a guide baffle (712) and a dust removal liquid (9); the garbage coming out of the outlet of the suction pipe (6) is guided downward along with the airflow through the guide baffle (712) to enter the dust removal liquid (9), and the garbage and dust are retained in the dust removal liquid (9), and relatively clean air is discharged through the fan (4) after coming out of the dust removal liquid (9); the guide baffle (712) is provided with a gas guide groove (7125) near the outlet of the suction pipe (6), and the gas coming out of the outlet of the suction pipe (6) is diverted to one side, to both sides, to the top and bottom, or to all sides.

2. A water filtering vacuum cleaner as described in claim 1, wherein the guide baffle (712) divides the trash can (3) into two types of chambers, namely an air inlet chamber (705) and an air outlet chamber (706); the air inlet chamber (705) is connected to the outlet of the suction pipe (6), and the air outlet chamber (706) is connected to the inlet of the fan (4); the upper parts of the air inlet chamber (705) and the air outlet chamber (706) are isolated and not connected, and the air inlet chamber (705) and the air outlet chamber (706) are connected at the bottom of the trash can (3), and there is a dust removal liquid (9) at the connection point, and the dust removal liquid (9) isolates the air in the two chambers; the outlet height of the suction pipe (6) is higher than the liquid level of the dust removal liquid (9).

3. A water filtering vacuum cleaner as described in claim 1, wherein the guide baffle (712) has a square barrel shape, a round barrel shape, a truncated cone shape, or a frustum shape, and the garbage enters the dust removal liquid (9) from one side of the guide baffle (712) downward with the air flow, and then rises from the dust removal liquid (9) on the other side of the guide baffle (712) to reach the inlet of the fan (4).

4. A water filtering vacuum cleaner as claimed in claim 1, wherein the lower periphery of the guide baffle (712) is curved, wrinkled, or circuitously arranged.

5. A water filtering vacuum cleaner as described in claim 1, wherein the lower section of the guide baffle (712) is provided with a gas breaking channel so that the air can enter the dust removal liquid (9) after being broken, thereby achieving a better dust removal effect.

6. A water filtering vacuum cleaner as described in claim 1, wherein the portion of the suction pipe (6) entering the trash can (3) is provided with a bend pipe, which can guide the airflow to rotate around the space between the guide baffle (712) and the trash can (3), and the garbage settles along the wall of the trash can (3) under the action of centrifugal force.

7. A water filtering vacuum cleaner as described in claim 1, wherein a secondary filtering device (741) is provided along the direction of the airflow, after the guide baffle (712) and before the inlet of the fan (4); the air coming out of the dust removal liquid is filtered by the secondary filtering device (741), and after the droplets and residual dust are filtered by the secondary filtering device (741), the clean air is discharged through the fan.

8. A water filtering vacuum cleaner as claimed in claim 1, wherein the dust removal liquid (9) is clean water or clean water with a synergist added.

9. A water filtering vacuum cleaner as described in claim 1, after the dust removal liquid (9) is poured out, the guide baffle (712) is removed, and a pore filtering device is installed at the inlet of the fan (4), the vacuuming operation can be performed like an existing ordinary vacuum cleaner.

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