Microbubble device and washing equipment

Abstract

The invention relates to the technical field of micro-bubble devices, particularly provides a micro-bubble device and washing equipment, and aims to solve the problem that an existing micro-bubble device is weakened in air suction effect or cannot suck air when water pressure is insufficient. Therefore, the microbubble device comprises a shell, and a water inlet, a first throttling hole, a negative pressure cavity and a water outlet which are sequentially communicated in the shell, the negative pressure cavity is communicated with an air inlet, and the air inlet is used for sucking air outside the shell; in the water flow direction, a partition component is arranged at the downstream of the negative pressure cavity; overflow ports are formed in the downstream of the negative pressure cavity and the upstream of the separation component and communicate with the exterior of the shell; after water enters from the water inlet, negative pressure is formed in the negative pressure cavity after the water passes through the first throttling hole, air is sucked in through the air inlet, and water flow and the air are mixed and then separated into bubble water through the separation component. Through the arrangement of the overflow port, when the water pressure is insufficient, water can quickly pass through the overflow port, water accumulation in the negative pressure cavity is avoided, and the situation that air suction is weakened or cannot be achieved is avoided.

Description

Technical Field

[0001] This invention relates to the field of microbubble device technology, specifically providing a microbubble device and a washing device. Background Technology

[0002] Washing machines are an essential household appliance in people's lives. They have a variety of functions and are loved by people.

[0003] Microbubble technology in washing machines is an innovative washing method that enhances washing performance by generating a large number of micro- and nano-bubbles in the water. These bubbles adsorb the cleaning agents in the detergent and penetrate deep into the clothing fibers. Through high-frequency vibration or bursting, they separate stains from the clothes, thus achieving a clean wash. Microbubble technology also reduces the amount of detergent used, increases the washing ratio, and makes clothes cleaner with less residue.

[0004] Existing microbubble devices typically generate negative pressure after throttling, using this negative pressure to draw in air and ultimately separate it into more bubbles through a filter. However, when the water pressure is insufficient, the water flow cannot pass through the filter quickly, which can cause water to accumulate in the negative pressure area to some extent, resulting in weakened air intake. In severe cases, it can even cause the inability to draw in air at all.

[0005] In summary, existing microbubble devices have reduced or no air intake effect when the water pressure is insufficient.

[0006] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0007] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing microbubble devices have a weakened air intake effect or cannot take in air when the water pressure is insufficient.

[0008] In a first aspect, the present invention provides a microbubble device, the microbubble device comprising: a housing and an inlet, a first throttling orifice, a negative pressure chamber, and an outlet sequentially connected within the housing; the negative pressure chamber is connected to an air inlet for drawing in air from outside the housing; a separating member is provided downstream of the negative pressure chamber in the water flow direction; an overflow port is provided downstream of the negative pressure chamber and upstream of the separating member, the overflow port being connected to the outside of the housing; after water enters from the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling orifice, and air is drawn in through the air inlet; the water and air mix and are separated into bubble water by the separating member.

[0009] In the preferred embodiment of the microbubble device described above, a mixing chamber connected to the negative pressure chamber is provided between the negative pressure chamber and the separating member, and the overflow port is located at the mixing chamber and connected to the mixing chamber.

[0010] In the preferred embodiment of the microbubble device described above, a second throttling orifice is formed between the negative pressure chamber and the mixing chamber, and the negative pressure chamber and the mixing chamber are connected through the second throttling orifice.

[0011] In the preferred embodiment of the microbubble device described above, the cross-sectional area of ​​the negative pressure chamber gradually decreases in the direction of water flow, while the cross-sectional area of ​​the mixing chamber gradually increases.

[0012] In a preferred embodiment of the microbubble device described above, the microbubble device further includes an embedded component, in which the negative pressure chamber, the second throttling orifice, and the mixing chamber are formed in communication; an air intake channel is formed between the embedded component and the inner wall of the housing, and the air intake channel connects the air inlet and the negative pressure chamber.

[0013] In the preferred embodiment of the microbubble device described above, the microbubble device further includes a baffle, on which a plurality of pressing members are arranged in parallel and spaced apart. The baffle is connected to the housing, and the pressing members are configured to fix the separating members.

[0014] In the preferred embodiment of the microbubble device described above, the water outlet is formed between the baffle and the bottom wall inside the housing.

[0015] In the preferred embodiment of the microbubble device described above, a sloping inner wall is formed on the bottom wall of the shell, and the sloping inner wall and the baffle form the water outlet. The overflow port can overflow water onto the sloping inner wall and discharge it through the water outlet.

[0016] In the preferred embodiment of the microbubble device described above, a partition is provided inside the housing to form an air intake channel parallel to the water flow inside the housing, and the air intake channel is connected to the negative pressure chamber through the air inlet.

[0017] In a second aspect, the present invention also provides a washing device, the washing device comprising the microbubble device described in any one of the above technical solutions.

[0018] With the above technical solution, the microbubble device of the present invention includes: a shell and an inlet, a first throttling hole, a negative pressure chamber, and an outlet connected sequentially within the shell; the negative pressure chamber is connected to an air inlet for drawing air from outside the shell; a separating member is provided downstream of the negative pressure chamber in the water flow direction; an overflow port is provided downstream of the negative pressure chamber and upstream of the separating member, and the overflow port is connected to the outside of the shell; after water enters from the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling hole, and air is drawn in through the air inlet. After the water and air mix, they are separated into bubble water by the separating member. The present invention, through the overflow port, allows water to pass quickly through the overflow port when the water pressure is insufficient, avoiding accumulation in the negative pressure chamber and preventing the negative pressure chamber from being entirely filled with water. This ensures air intake efficiency and prevents weakened or impossible air intake.

[0019] This invention addresses the issue of insufficient water pressure potentially hindering the rapid flow of water through the negative pressure chamber and the partition. By cleverly incorporating an overflow outlet, it not only allows water to pass quickly when necessary, preventing excessive water accumulation within the negative pressure chamber, but also ensures system stability and reliability. Furthermore, it takes into account the influence of the partition on water flow, placing the overflow outlet upstream of the partition to avoid the problem of water difficulty in quickly passing through it, thus ensuring overall system efficiency. Although the overflow outlet is not located in the negative pressure area, placing it as close as possible to the negative pressure chamber maximizes water flow efficiency and air intake effect.

[0020] Furthermore, by providing a second throttling orifice between the negative pressure chamber and the mixing chamber, the present invention can, to a certain extent, prevent water in the mixing chamber from being drawn back into the negative pressure chamber. The formation of the second throttling orifice between the negative pressure chamber and the mixing chamber not only connects the mixing chamber and the negative pressure chamber but also serves as a barrier.

[0021] Furthermore, the present invention also includes a baffle that prevents water from spraying and splashing. Attached Figure Description

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a first-view structural diagram of the microbubble device of the present invention;

[0024] Figure 2 This is a second-view structural diagram of the microbubble device of the present invention;

[0025] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0026] Figure 4 yes Figure 2 Cross-sectional view at point BB;

[0027] Figure 5 This is an internal structural diagram of the washing device of the present invention;

[0028] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0029] Figure label:

[0030] 1. Shell; 11. Inlet; 12. First throttling orifice; 13. Negative pressure chamber; 14. Mixing chamber; 141. Overflow port; 15. Outlet; 16. Slope; 17. Air intake channel; 18. Air inlet; 19. Partition; 191. Suction channel; 192. Suction port; 2. Separating component; 3. Embedded component; 31. Second throttling orifice; 32. Annular groove; 33. Extension; 4. Baffle; 41. Press-fit component; 42. Fixing hole; 5. Box body; 6. Clothing treatment bucket; 61. Outer cylinder; 62. Inner cylinder; 7. Inlet pipe. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0032] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," and "right," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] First refer to Figures 1 to 4 ,like Figures 1 to 4As shown, the microbubble device of the present invention includes: a housing 1 and an inlet 11, a first throttling hole 12, a negative pressure chamber 13, and an outlet 15 connected sequentially within the housing 1; the negative pressure chamber 13 is connected to an air inlet 18, which is used to draw air from outside the housing 1; in the water flow direction, a separating member 2 is provided downstream of the negative pressure chamber 13; an overflow port 141 is provided downstream of the negative pressure chamber 13 and upstream of the separating member 2, and the overflow port 141 is connected to the outside of the housing 1; after water enters from the inlet 11, it forms a negative pressure in the negative pressure chamber 13 after passing through the first throttling hole 12, and draws in air through the air inlet 18. After the water and air are mixed, they are separated into bubble water by the separating member 2.

[0035] Specifically, the passage formed by the inlet 11, the first throttling orifice 12, and the negative pressure chamber 13 has a cross-sectional area that initially remains constant and then gradually decreases in the direction of water flow, reaching its minimum at the first throttling orifice 12. Afterward, the cross-sectional area increases, creating negative pressure within the negative pressure chamber 13 through the throttling effect of the first throttling orifice 12, thus achieving air intake. When the water pressure is insufficient, the water flow cannot quickly pass through the negative pressure chamber 13 or the separating member 2, leading to water accumulation within the negative pressure chamber 13. Excessive water in the negative pressure chamber 13 weakens the air intake effect, reducing air intake and causing water and air to mix. With reduced mixing and microbubbles, an overflow port 141 is provided downstream of the negative pressure chamber 13. The overflow port 141 allows water to pass through quickly, preventing water accumulation in the negative pressure chamber 13. The partition member 2 also acts as a barrier to water. If the overflow port 141 were located downstream of the partition member 2, it might prevent water from passing through the partition member 2 quickly. Therefore, the overflow port 141 is located upstream of the partition member 2. However, the location of the overflow port 141 is not in the negative pressure area. The closer it is to the negative pressure chamber 13, the faster the water can flow, achieving efficient air intake.

[0036] In summary, this invention cleverly incorporates an overflow port 141 to address the issue that insufficient water pressure may hinder the rapid flow of water through the negative pressure chamber 13 and the partition member 2. This not only allows water to pass through quickly when necessary, preventing excessive water accumulation in the negative pressure chamber, but also ensures the stability and reliability of the system. Furthermore, it takes into account the influence of the partition member 2 on the water flow and avoids the problem of water difficulty in quickly passing through the partition member 2 by placing the overflow port 141 upstream of the partition member 2, thereby ensuring the overall efficiency of the system. Although the overflow port 141 is not located in the negative pressure area, placing it as close as possible to the negative pressure chamber maximizes the water flow efficiency and air intake effect.

[0037] Preferably, the separating component 2 is composed of multiple layers of filter screens arranged side by side. After water and air are mixed, they are cut into micro-bubbles of fifty micrometers by the multiple layers of filter screens, and these micro-bubbles will not disappear for a long time. These micro-bubbles can directly penetrate the clothing fibers, achieving efficient cleaning. The mesh size of the separating component 2 is preferably in the micrometer range, preferably 0-1000 micrometers, and more preferably 5-500 micrometers.

[0038] It should be noted that the present invention does not impose any restrictions on the specific structure of the separating member 2. As long as the separating member 2 has a mesh structure, it can be a plastic fence, metal mesh, polymer material mesh, nylon mesh, polypropylene mesh, etc. Those skilled in the art can set it according to the actual situation.

[0039] Continue reading Figure 3 ,like Figure 3 As shown, a mixing chamber 14, connected to the negative pressure chamber 13, is provided between the negative pressure chamber 13 and the separating member 2. An overflow port 141 is located at the mixing chamber 14 and is connected to the mixing chamber 14. Specifically, after water enters from the inlet 11, it is throttled by the first throttling orifice 12, forming a negative pressure in the negative pressure chamber 13. Air is drawn in using the negative pressure and the air inlet 18. Then, the water and air can be fully mixed in the mixing chamber 14. After being fully mixed, the water is separated into microbubbles by the separating member 2. The setting of the mixing chamber 14 allows the water and air to be fully mixed, improving the mixing effect of water and air.

[0040] In other embodiments, the mixing chamber 14 and the negative pressure chamber 13 have the same cross-sectional area in the direction of water flow, both of which are larger than the cross-sectional area of ​​the first throttling orifice 12, so that a negative pressure is formed in the negative pressure chamber 13 after passing through the first throttling orifice 12.

[0041] Furthermore, a second throttling orifice 31 is formed between the negative pressure chamber 13 and the mixing chamber 14, and the negative pressure chamber 13 and the mixing chamber 14 are connected through the second throttling orifice 31. The second throttling orifice 31 can limit the reverse flow of fluid to a certain extent. While a negative pressure is formed in the negative pressure chamber 13 and air is drawn in, the water in the mixing chamber 14 will not be drawn back too strongly by the negative pressure chamber 13, thereby avoiding possible system instability and performance degradation. The formation of the second throttling orifice 31 between the negative pressure chamber 13 and the mixing chamber 14 not only connects the mixing chamber 14 and the negative pressure chamber 13, but also plays a blocking role.

[0042] Furthermore, in this preferred embodiment, the cross-sectional area of ​​the negative pressure chamber 13 gradually decreases in the direction of water flow, while the cross-sectional area of ​​the mixing chamber 14 gradually increases. The gradual decrease in the cross-sectional area of ​​the negative pressure chamber 13 leads to an increase in fluid velocity. According to Bernoulli's law, as the flow velocity increases, the static pressure decreases, which helps to create a stronger negative pressure effect within the negative pressure chamber 13. This negative pressure effect can more effectively draw in air, providing a sufficient air source for the subsequent mixing process; the gradual increase in the cross-sectional area of ​​the mixing chamber 14 is beneficial for fluid diffusion and mixing. When water and air enter the mixing chamber 14 through the second throttling orifice 31, the fluid velocity decreases accordingly due to the gradually increasing cross-sectional area of ​​the mixing chamber 14, and the static pressure increases. This decrease in velocity and increase in static pressure facilitates sufficient contact and mixing between water and air, thereby improving the mixing effect.

[0043] It should be noted that the present invention does not impose any restrictions on the specific structure of the negative pressure chamber 13 and the mixing chamber 14. Alternatively, the cross-sectional area of ​​the negative pressure chamber 13 and the cross-sectional area of ​​the mixing chamber 14 can remain unchanged in the direction of water flow. As long as the cross-sectional areas of the negative pressure chamber 13 and the mixing chamber 14 are both greater than the cross-sectional area of ​​the second throttling orifice 31 in the direction of water flow, those skilled in the art can set them according to the actual situation.

[0044] Continue reading Figure 3 and Figure 4 ,like Figure 3 and Figure 4 As shown, the microbubble device further includes an embedded member 3, within which a negative pressure chamber 13, a second throttling orifice 31, and a mixing chamber 14 are formed in communication; an air inlet channel 17 is formed between the embedded member 3 and the inner wall of the housing 1, the air inlet channel 17 connecting the air inlet 18 and the negative pressure chamber 13. Specifically, as... Figure 3 As shown, an air intake channel 17 is formed between the left side wall of the embedded component 3 and the right side wall of the housing 1 after the first throttling hole 12 inside the housing 1. (See reference...) Figure 4 The housing 1 is provided with an air inlet 18, which is connected to the negative pressure chamber 13 through an air intake channel 17. The embedded component 3 facilitates the manufacturing of the negative pressure chamber 13, the second throttling orifice 31, and the mixing chamber 14, while also providing an air intake route, optimizing space utilization, and ensuring smooth airflow. This invention cleverly combines the structural features of the embedded component 3 and the housing 1, achieving effective communication between the negative pressure chamber 13, the second throttling orifice 31, and the mixing chamber 14, and optimizing the air intake route without requiring a separate air intake pipe. This design not only improves the performance of the device but also reduces manufacturing difficulty and cost.

[0045] The air intake channel 17 formed by the embedded member 3 and the inner wall of the housing 1 is the gap between the embedded member 3 and the inner wall of the housing 1, such as Figure 3As shown, a protrusion can be provided on the left side of the embedded component 3. The protrusion contacts the left inner wall of the housing 1, making the embedded component 3 immovable and forming an air intake channel 17 with the housing 1. Alternatively, a protrusion can be provided on the left inner wall of the housing 1. Those skilled in the art can set it according to the actual situation.

[0046] In other embodiments, the microbubble device does not include the embedded member 3, and the negative pressure chamber 13, the second throttling orifice 31 and the mixing chamber 14 are formed directly in the housing 1.

[0047] Continue reading Figure 3 and Figure 4 The microbubble device also includes a baffle 4, on which multiple pressing members 41 are arranged in parallel and spaced apart. The baffle 4 is connected to the housing 1, and the pressing members 41 are configured to fix the separating members 2. Specifically, as Figure 3 As shown, the baffle 4 is set vertically or at an angle. The upper end of the baffle 4 and multiple pressing members 41 can press the separating member 2 to the left end of the embedded member 3. That is, the separating member 2 is pressed and fixed by the embedded members 3 on the left and right sides and the pressing members 41, which facilitates installation. The outlet 15 is located below the baffle 4. The gap between the multiple pressing members 41 arranged in parallel and spaced apart allows the microbubble water flow to flow downward to the outlet 15 after passing through the separating member 2. The setting of the pressing members 41 can fix the separating member 2 without hindering the flow of microbubble water. The baffle 4 has the function of blocking water and can prevent excessive upward splashing when the water is sprayed.

[0048] Without baffle 4, both the area of ​​baffle 4 and the area of ​​water outlet 15 are water outlet areas. If the water outlet area is too large, the water will splash upwards when the water is sprayed quickly. If installed in the washing equipment, it may splash to other parts of the washing equipment, causing waste and pollution. With baffle 4 installed, the water outlet area is reduced and the water outlet area is minimized. The water-blocking effect of baffle 4 is used to prevent water from splashing around.

[0049] It should be noted that the present invention does not impose any restrictions on the specific structure of the pressing member 41. It can be a columnar structure, an inclined plate structure, or a plate structure arranged vertically. As long as there are gaps between multiple pressing members 41 and the function of fixing the separating member 2 can be achieved, those skilled in the art can set it according to the actual situation.

[0050] In other embodiments, the separator 2 is fixed to the crimping member 41 by screws or by adhesive bonding.

[0051] Furthermore, a sloping inner wall 16 is formed on the bottom wall of the shell 1. The sloping inner wall 16 and the baffle 4 form an outlet 15. The overflow port 141 can overflow water onto the sloping inner wall 16 and discharge it through the outlet 15. For details, see [reference needed]. Figure 3 ,like Figure 3 As shown, the lower right end of the shell 1 is inclined downward to form a ramp 16. The right end of the ramp 16 is located below the baffle 4 and has a gap with the lower surface of the baffle 4 to form a water outlet 15. The overflow port 141 overflows water onto the inner wall of the ramp 16 and can discharge the overflow water and microbubble water together through the water outlet 15.

[0052] Preferably, the embedded member 3 is provided with an extension 33, and a notch is provided at the lower right end of the extension 33 to form an overflow port 141. Of course, this is only a preferred arrangement. In some other embodiments, the embedded member 3 is not included, and the extension 33 extends to the right in a local area at the left end of the slope 16, so that the water in the overflow port 141 can still overflow to the inner wall of the slope 16.

[0053] In other embodiments, the ramp 16 is not provided, and the outlet 15 is formed directly between the baffle 4 and the bottom wall inside the housing 1.

[0054] In some other embodiments, the ramp 16 is not provided, the overflow port 141 is located upstream of the outlet 15, the overflow port 141 is connected to an overflow pipe (not shown in the figure), the overflow pipe is connected to the inlet 11, and a one-way valve is provided on the overflow pipe, which only allows water to flow from the overflow port 141 to the inlet 11, and the gravity of the water can open the one-way valve. In this way, the water that is not separated by the separating member 2 passes through the inlet 11 again to mix with air and then passes through the separating member 2 for separation.

[0055] Continue reading Figure 3 and Figure 4 ,like Figure 3 and Figure 4 As shown, an annular groove 32 is provided on the embedded component 3, and a sealing ring (not shown in the figure) is provided in the annular groove 32. The sealing ring can seal the gap between the outer side of the embedded component 3 and the inner side of the housing 1 to prevent water leakage.

[0056] See next. Figure 2 and Figure 4The housing 1 has a partition 19 to form an air intake channel 191 parallel to the water flow. The air intake channel 191 is connected to the negative pressure chamber 13 through the air inlet 18. Air is drawn in through the air intake channel 191 via the air intake port 192 and ultimately into the negative pressure chamber 13. However, this is not a limitation; in some embodiments, the air intake channel 191 may be omitted, and air can be drawn in directly through the air inlet 18. The air intake channel 191 guides the airflow more smoothly and reduces airflow turbulence.

[0057] See Figure 1 and Figure 2 The baffle 4 is provided with a fixing hole 42, and the housing 1 is provided with an installation hole at the position of the fixing hole 42. The baffle 4 and the housing 1 are fixed by passing screws through the fixing hole and the installation hole. This is only a preferred arrangement. In other embodiments, the baffle 4 is provided with a locking block around its perimeter, and the housing 1 is provided with locking holes around its perimeter. The baffle 4 and the housing 1 are connected by a locking method. It can also be welded, glued, etc. Those skilled in the art can set it according to the actual situation.

[0058] In a second aspect, the present invention also claims a washing device comprising the microbubble device of any of the above-described preferred embodiments.

[0059] Specifically, see Figure 5 and Figure 6 ,like Figure 5 and 6 As shown, the washing equipment includes a housing 5 and a clothes treatment tub 6 installed inside the housing 5. The clothes treatment tub 6 protects an outer tub 61 and an inner tub 62 fitted inside the outer tub 61. The washing equipment also includes a water inlet pipe 7, which is connected to a water inlet 11. The water outlet 15 is located above the clothes treatment tub 6 and can deliver microbubble water into the clothes treatment tub 6.

[0060] The microbubble device can be fixed to the housing 5 or directly to the water inlet pipe 7. The microbubble device is located inside the exterior decorative parts of the housing 5.

[0061] It should be noted that the present invention does not impose any restrictions on the specific type of washing equipment. It can be a washing machine, a washer-dryer combo, a top-loading washing machine, a front-loading washing machine, or other types of washing equipment. Those skilled in the art can set it according to the actual situation.

[0062] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A microbubble device, characterized in that, The microbubble device includes: a shell and an inlet, a first throttling hole, a negative pressure chamber and an outlet connected in sequence inside the shell; The negative pressure chamber is connected to an air inlet, which is used to draw in air from outside the housing; In the direction of water flow, a partition member is provided downstream of the negative pressure chamber; an overflow port is provided downstream of the negative pressure chamber and upstream of the partition member, and the overflow port is connected to the outside of the shell; After water enters through the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling orifice, and air is drawn in through the air inlet. The water and air mix and are separated into bubble water by the separating member.

2. The microbubble device according to claim 1, characterized in that, A mixing chamber connected to the negative pressure chamber is provided between the negative pressure chamber and the separating member, and the overflow port is located at the mixing chamber and connected to the mixing chamber.

3. The microbubble device according to claim 2, characterized in that, A second throttling orifice is formed between the negative pressure chamber and the mixing chamber, and the negative pressure chamber and the mixing chamber are connected through the second throttling orifice.

4. The microbubble device according to claim 3, characterized in that, In the direction of water flow, the cross-sectional area of ​​the negative pressure chamber gradually decreases, while the cross-sectional area of ​​the mixing chamber gradually increases.

5. The microbubble device according to claim 4, characterized in that, The microbubble device further includes an embedded component, in which the negative pressure chamber, the second throttling orifice, and the mixing chamber are formed in communication. An air intake channel is formed between the embedded component and the inner wall of the housing, and the air intake channel connects the air inlet and the negative pressure chamber.

6. The microbubble device according to any one of claims 1 to 5, characterized in that, The microbubble device further includes a baffle, on which a plurality of pressing members are arranged in parallel and spaced apart. The baffle is connected to the housing, and the pressing members are configured to fix the separating members.

7. The microbubble device according to claim 6, characterized in that, The water outlet is formed between the baffle and the bottom wall inside the shell.

8. The microbubble device according to claim 7, characterized in that, A sloping inner wall is formed on the bottom wall of the shell. The sloping inner wall and the baffle form the water outlet. The overflow port can overflow water onto the sloping inner wall and discharge it through the water outlet.

9. The microbubble device according to any one of claims 1 to 5, characterized in that, The housing is provided with a partition to form an air intake channel parallel to the water flow. The air intake channel is connected to the negative pressure chamber through the air inlet.

10. A washing device, characterized in that, The washing equipment includes the microbubble device according to any one of claims 1 to 9.

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