A microbubble generating device of a washing apparatus and a washing apparatus

Abstract

The application discloses a kind of micro-bubble generating device of washing equipment and washing equipment, and micro-bubble generating device includes: shell, inside with liquid supply passage;Micro-bubbler includes bubble piece, for the shear of gas-liquid mixture to produce micro-bubble liquid;The bubble piece is movably arranged in the liquid supply passage, and inductive liquid inlet pressure moves, to adjust the distance between liquid inlet and liquid supply passage, so as to adjust the area of liquid injection to bubble piece on.The application can be movably arranged by bubble piece, can inductively adjust position dynamically by liquid inlet pressure, effectively cope with the problem of unstable liquid inlet pressure, ensure the uniformity and stability of micro-bubble generation.Adjusted micro-bubble liquid has better bubble effect, and micro-bubble liquid can penetrate more deeply into fabric fiber, improve washing efficiency and cleaning effect.

Description

Technical Field

[0001] This invention belongs to the field of household washing equipment, specifically, it relates to a microbubble generator and washing equipment. Background Technology

[0002] In existing washing equipment, especially washing machines, microbubble generators are often added to improve washing efficiency and cleanliness. These devices generate tiny bubbles that can penetrate the clothing fibers more effectively, enhancing the washing effect. However, a key issue is that the performance of the microbubble generator is highly dependent on the incoming water pressure.

[0003] Specifically, when the inlet water pressure is too low, the liquid's fan-shaped area will expand significantly, often resulting in the liquid completely covering the microbubble generator's mesh surface. Because the mesh surface is completely covered by liquid, air cannot mix effectively, thus affecting microbubble generation. Conversely, when the water pressure is too high, the liquid's fan-shaped area expands less, resulting in insufficient liquid coverage on the mesh surface. In this case, the mixing effect between water and air is poor, which also affects the quality of microbubble generation.

[0004] In summary, the area ratio of liquid to air on the mesh surface needs to be appropriate to ensure optimal bubble formation. However, existing microbubble generator structures often cannot adaptively adjust to changes in water pressure, causing the bubble formation effect to be significantly influenced by water pressure.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The purpose is to provide a microbubble generating device for washing equipment, which can dynamically move and adjust the position of the foaming element of the microbubble generator under different liquid inlet pressures, so as to ensure that the ratio of liquid to air is always optimal under different liquid inlet pressures, and the foaming effect after adjustment is in the best state, thereby reducing the influence of liquid inlet pressure on the foaming effect.

[0007] Another object of the present invention is to provide a washing device.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is to provide a microbubble generating device for a washing equipment, comprising:

[0009] The casing has an internal liquid supply channel;

[0010] Microbubbler, including a bubbler element, is used to shear a gas-liquid mixture to generate microbubbles in the liquid;

[0011] The foaming element is movably disposed within the liquid supply channel, and moves in response to the liquid inlet pressure to adjust the distance between itself and the liquid inlet of the liquid supply channel, thereby adjusting the area of ​​liquid sprayed onto the foaming element.

[0012] Furthermore, the foaming element is reciprocally movable along the liquid flow direction. When the inlet pressure is low, the foaming element moves closer to the inlet to reduce the spray area of ​​the liquid on the foaming element; when the inlet pressure is high, the foaming element moves away from the inlet to increase the spray area of ​​the liquid on the foaming element.

[0013] Preferably, the liquid inlet is provided with a Venturi structure, which is used to form a gas-liquid mixture with the gas after the liquid is sprayed out, or to directly spray out the gas-liquid mixture and scatter it onto the bubbler.

[0014] Furthermore, the microbubbler includes a support structure, the bubbler is disposed on the support structure and is disposed opposite to the liquid inlet, the support structure is movably disposed within the liquid supply channel, and the bubbler moves within the liquid supply channel via the support structure.

[0015] Furthermore, the liquid supply channel includes a mixing chamber, and the support structure is telescopically clamped in the mixing chamber along the liquid flow direction. When the liquid inlet pressure is greater than the preset pressure, it drives the foaming element away from the liquid inlet, and when the liquid inlet pressure is less than the preset pressure, it drives the foaming element to move towards the liquid inlet.

[0016] Furthermore, the support structure includes an elastic element and a movable seat, the movable seat being movably disposed within the mixing chamber, and the movable seat having a first mounting chamber and a second mounting chamber connected sequentially along the liquid inlet direction;

[0017] The foaming element is disposed in the first mounting cavity, and the elastic element abuts between the second mounting cavity and the mixing cavity;

[0018] Preferably, the foaming element includes a foaming net, and the elastic element includes a spring.

[0019] Furthermore, the movable seat has a ring-shaped structure, and the first mounting cavity and the second mounting cavity are arranged sequentially along the axial direction;

[0020] The inner wall of the mixing chamber between the liquid inlet and the foaming element is provided with an extended guide surface. The end of the guide surface extends into the first mounting chamber. During liquid injection, the end of the guide surface is spaced apart from the outer peripheral portion of the foaming element.

[0021] Furthermore, it also includes a fixed seat, which is disposed at the end of the mixing chamber away from the liquid inlet. The mixing chamber has a stepped surface with a diameter that increases along the liquid inlet direction. The movable seat is movably disposed between the stepped surface and the fixed seat, and the elastic element abuts between the movable seat and the fixed seat.

[0022] Furthermore, it also includes a guide structure extending between the fixed seat and the stepped surface, for guiding the movable seat to reciprocate;

[0023] Preferably, the movable seat includes a fixing part and an annular mounting part, the first mounting cavity and the second mounting cavity are disposed on the mounting part, and the mounting part extends into the smaller diameter portion of the mixing cavity.

[0024] The fixing part extends outward from the outer periphery of the mounting part and is movably sleeved on the guide structure between the fixing seat and the stepped surface;

[0025] Preferably, the guiding structure includes a guide post, one end of which is fixed to the housing, and the other end protrudes and extends to the fixing seat.

[0026] Furthermore, the movable seat has a protruding connecting part on the stepped surface of its outer periphery, the fixed seat includes a fixed plate, the outer periphery of the fixed plate is connected to the connecting part, the middle part of the fixed plate has an opening opposite to the liquid inlet, and the fixed plate on the outer periphery of the opening has a limiting part that is limitedly connected to the elastic element.

[0027] The present invention also provides a washing device, including a liquid inlet pipe and any of the microbubble generating devices described above, wherein the microbubble generating device is connected to the liquid inlet pipe.

[0028] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0029] (1) This invention features a movable foaming element that can dynamically adjust its position based on the inlet pressure, effectively addressing unstable inlet pressure and ensuring the uniformity and stability of microbubble generation. The adjusted microbubble liquid exhibits better foaming performance and can penetrate deeper into the fabric fibers, improving washing efficiency and cleaning effect.

[0030] (2) When the inlet pressure is low, the fan-shaped spray area of ​​the liquid is large. The foaming element moves closer to the inlet to reduce the liquid spray area on the foaming element and increase the area of ​​the liquid on the foaming element, ensuring that the ratio of the area of ​​the liquid on the foaming element to the area of ​​the air on the foaming element reaches the preset optimal ratio. When the inlet pressure is high, the fan-shaped spray area of ​​the liquid is small, and the impact force of the liquid on the foaming element will also increase. The foaming element moves away from the inlet to increase the area of ​​the liquid spray on the foaming element, ensuring effective mixing of air and ensuring that the ratio of the area of ​​the liquid on the foaming element to the area of ​​the air on the foaming element reaches the preset optimal ratio.

[0031] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0032] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structural explosion of a microbubble generator according to the present invention;

[0034] Figure 2 This is a schematic diagram of a microbubble generating device according to the present invention;

[0035] Figure 3 This is the present invention. Figure 2 A diagram from another angle;

[0036] Figure 4 This is the present invention. Figure 3 A cross-sectional schematic diagram of one state along the AA direction;

[0037] Figure 5 This is the present invention. Figure 3 A cross-sectional schematic diagram of one state in the middle BB direction;

[0038] Figure 6 This is the present invention. Figure 3 Cross-sectional diagram of another state in the AA direction

[0039] Figure 7 This is the present invention. Figure 3 A cross-sectional diagram of another state in the BB direction.

[0040] In the diagram: 1. Shell; 11. Liquid supply channel; 111. Liquid inlet; 112. Mixing chamber; 12. First pipe section; 121. Venturi structure; 13. Second pipe section; 131. Guide surface; 132. Connecting post; 14. Third pipe section; 141. Connecting part; 142. Stepped surface;

[0041] 2. Microbubbler; 21. Bubbling component; 22. Support structure; 221. Movable seat; 2211. Mounting part; 2211a. First mounting cavity; 2211b. Second mounting cavity; 2212. Fixing part; 2212a. Clearance cavity; 222. Elastic component; 23. Fixing seat; 231. Fixing plate; 232. Limiting part; 233. Fixing component; 24. Guide structure; 241. Guide post; 242. Limiting head.

[0042] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figures 1 to 7 As shown, the present invention provides a microbubble generator that can be applied to washing equipment such as washing machines and dishwashers. By generating a large number of microbubbles in the washing water of the washing equipment through the microbubble generator, the washing effect of the washing equipment can be improved.

[0047] The microbubble generator includes a housing 1 and a microbubble generator 2.

[0048] The housing 1 has a liquid supply channel 11 inside, and the liquid supply channel 11 has an inlet 111 and an outlet at both ends.

[0049] The microbubbler 2 includes a bubbler 21, which is used to shear or cut the gas-liquid mixture ejected from the liquid inlet 111 of the liquid supply channel 11 to generate microbubble liquid, or to shear or cut the mixture of gas and liquid ejected from the liquid inlet 111 of the liquid supply channel 11 to generate microbubble liquid. The bubbler 21 is movably disposed within the liquid supply channel 11 and moves in response to the liquid inlet pressure to adjust the distance between itself and the liquid inlet 111 of the liquid supply channel 11, thereby adjusting the area of ​​liquid sprayed onto the bubbler 21.

[0050] This invention features a movable foaming element 21 that can dynamically adjust its position based on the inlet liquid pressure, effectively addressing unstable inlet liquid pressure and ensuring the uniformity and stability of microbubble generation. The adjusted foaming effect is better, allowing the microbubble liquid to penetrate deeper into the fabric fibers, thus improving washing efficiency and cleaning effect.

[0051] The microbubble generator of the present invention can be widely used in household washing machines, industrial washing equipment and other scenarios.

[0052] The foaming element 21 can be rotatably disposed within the liquid supply channel 11, or can be reciprocated along the liquid flow direction. It can directly contact the gas-liquid mixture, bear and sense the liquid inlet pressure to move, and generate microbubble liquid through shearing action. The microbubble liquid includes microbubble water and microbubble detergent water.

[0053] The bubbling component 21 can be moved by other means such as elastic drive, electromagnetic drive, and hydraulic drive.

[0054] The shape and material of the bubbler 21 can be optimized according to actual needs, such as square, polygonal, or circular shapes, and can be made of porous materials or have a mesh structure to enhance the shearing effect and the uniformity of microbubbles.

[0055] The foaming element 21 is designed to move back and forth along the direction of liquid flow.

[0056] like Figures 4 to 5 As shown, the foaming element 21 is positioned close to the liquid inlet 111 after sensing the liquid inlet pressure. When the liquid inlet pressure is low, the fan-shaped spray area of ​​the liquid is large. The foaming element 21 moves closer to the liquid inlet 111 to reduce the spray area of ​​the liquid on the foaming element 21, ensuring that the ratio of the area of ​​liquid on the foaming element 21 to the area of ​​air on the foaming element 21 reaches a preset optimal ratio.

[0057] like Figures 6 to 7 As shown, the foaming element 21 is positioned away from the liquid inlet 111 after sensing the liquid inlet pressure. When the liquid inlet pressure is high, the fan-shaped spray area of ​​the liquid is small, and the impact force of the liquid on the foaming element 21 also increases. The foaming element 21 moves away from the liquid inlet 111 to increase the spray area of ​​the liquid on the foaming element 21, ensuring effective mixing of air and ensuring that the ratio of the area of ​​liquid on the foaming element 21 to the area of ​​air on the foaming element 21 reaches a preset optimal ratio.

[0058] This invention Figure 2 This is a schematic diagram showing the foaming element 21 positioned near the liquid inlet 111.

[0059] This invention eliminates the need for external manual adjustment, reducing operational complexity and improving the intelligence and automation level of the equipment.

[0060] The preset optimal ratio is 60%-90%.

[0061] The foaming element 21 is a mesh surface opposite to the liquid inlet 111, used to contact the liquid and air and promote the generation of microbubbles.

[0062] The liquid inlet 111 is provided with a Venturi structure 121, which can spray out liquid to form a gas-liquid mixture with gas or directly spray out a gas-liquid mixture and scatter it onto the foaming element 21. The foaming element 21 shears the gas-liquid mixture to generate microbubble liquid with smaller bubbles.

[0063] The liquid sprayed onto the foaming component 21 in this invention can also be water, detergent water, etc.

[0064] Preferably, when liquid enters the microbubble generator through inlet 111, it first passes through Venturi structure 121. Venturi structure 121 utilizes the principle that increased liquid velocity leads to decreased pressure (i.e., the Venturi effect) to create a negative pressure region in the liquid, thereby drawing in air and forming a gas-liquid mixture. Subsequently, this gas-liquid mixture is ejected and scattered onto the bubbler 21. Depending on changes in the inlet pressure, the bubbler 21 reciprocates along the liquid flow direction to adjust its contact area with the liquid, facilitating the generation of microbubbles.

[0065] This invention utilizes the Venturi effect to create a negative pressure zone as liquid passes through, thereby drawing in air and ejecting it to form a gas-liquid mixture. Through the combined use of the Venturi structure 121 and the foaming element 21, this invention can generate efficient and stable microbubbles under different liquid inlet pressures, improving efficiency and effectiveness in washing applications.

[0066] Furthermore, the microbubbler 2 includes a support structure 22. The aerator 21 is disposed on the support structure 22, and the aerator 21 is disposed opposite to the liquid inlet 111. The support structure 22 is movably disposed within the liquid supply channel 11, and the aerator 21 moves within the liquid supply channel 11 via the support structure 22.

[0067] The support structure 22 not only provides necessary support for the foaming component 21, but also has the ability to reciprocate along the liquid flow direction, thereby adjusting the position of the foaming component 21 according to actual needs.

[0068] The liquid supply channel 11 includes a mixing chamber 112. This mixing chamber 112 provides ample space for the liquid and air to mix after being drawn in through the Venturi structure 121, and also provides space for further microbubble liquid generated by the foaming element 21. The ratio of the liquid sprayed onto the foaming element 21 to the air in the mixing chamber 112 within the area of ​​the foaming element 21 reaches a preset optimal ratio. The mixing chamber 112 is located in the middle or rear of the liquid supply channel 11. Preferably, both the mixing chamber 112 and the liquid supply channel 11 are straight-through channels.

[0069] The support structure 22 is telescopically clamped within the mixing chamber 112 along the liquid flow direction, and the mixing chamber 112 also provides a limiting function for the telescopic movement of the support structure 22. Specifically, when the inlet pressure is greater than the preset pressure, the support structure 22 contracts, causing the foaming element 21 to move away from the inlet 111; when the inlet pressure is less than the preset pressure, the support structure 22 extends, causing the foaming element 21 to move towards the inlet 111.

[0070] The support structure 22 includes an elastic element 222 and a movable seat 221, the movable seat 221 being movably disposed within the mixing chamber 112. The movable seat 221 has a first mounting chamber 2211a and a second mounting chamber 2211b connected sequentially along the liquid inlet direction. That is, the first mounting chamber 2211a is located near the liquid inlet 111, and the second mounting chamber 2211b is located near the liquid outlet.

[0071] The foaming element 21 is disposed in the first mounting cavity 2211a, and the elastic element 222 abuts against the second mounting cavity 2211b and the mixing cavity 112. The introduction of the elastic element 222 allows the support structure 22 to undergo appropriate deformation when subjected to changes in the inlet pressure, and automatically adjusts the position of the foaming element 21 through the action of the elastic element 222 and the inlet pressure. This mechanism ensures that the foaming element 21 maintains the optimal working position under different operating conditions, thereby improving the uniformity and stability of bubble generation.

[0072] When the inlet pressure is greater than the preset pressure: the foaming element 21 is subjected to the inlet pressure and moves away from the inlet 111 along with the moving seat 221. During this process, the elastic element 222 is compressed and stores energy.

[0073] When the inlet pressure is less than the preset pressure: the foaming element 21 is subjected to a smaller inlet pressure. When the inlet pressure is less than the restoring force of the elastic element 222, the elastic element 222 rebounds and drives the moving seat 221 and the foaming element 21 to move toward the inlet 111.

[0074] The shape and size of the first mounting cavity 2211a are matched with the foaming member 21 to ensure that the foaming member 21 can be securely installed therein and can be moved along the liquid flow direction when needed. The opening direction of the first mounting cavity 2211a is opposite to that of the liquid inlet 111.

[0075] The shape and size of the second mounting cavity 2211b are matched with the elastic element 222 for installation, and it is able to produce appropriate deformation when the elastic element 222 is subjected to pressure. At the same time, a certain gap is left between the bottom of the second mounting cavity 2211b and the bottom of the mixing cavity 112 to allow the elastic element 222 to deform under pressure.

[0076] Preferably, the foaming element 21 includes a foaming net, and the elastic element 222 includes a spring.

[0077] The bubble-generating net is made of porous or mesh material, and the size and distribution of the holes or mesh are calculated to ensure that uniform and fine bubbles are generated when liquid passes through it.

[0078] The movable base 221 has a ring-shaped structure, and the first mounting cavity 2211a and the second mounting cavity 2211b are arranged sequentially along the axial direction. The first mounting cavity 2211a and the second mounting cavity 2211b are interconnected and respectively connected to both ends of the extending direction of the mixing cavity 112.

[0079] An extended guide surface 131 is provided on the inner wall of the mixing chamber 112 between the liquid inlet 111 and the foaming member 21. The end of the guide surface 131 extends into the first mounting chamber 2211a. During liquid injection, the end of the guide surface 131 is spaced apart from the outer peripheral portion of the foaming member 21.

[0080] The present invention provides an extended guide surface 131 on the inner wall of the mixing chamber 112. The guide surface 131 extends gradually from the inner wall of the mixing chamber 112 along the direction of liquid flow and finally extends into the first mounting cavity 2211a. The design of the guide surface 131 takes into account the dynamic characteristics of the fluid to ensure that the liquid can smoothly transition to the foaming member 21 region.

[0081] During liquid injection, the end of the guide surface 131 is positioned opposite to the outer periphery of the foaming element 21. That is, the end of the guide surface 131 and the outer periphery of the foaming element 21 are radially separated. Through the guiding effect of the guide surface 131, the liquid is prevented from completely covering the foaming element 21, ensuring that the gas-liquid area ratio on the foaming element 21 is within a preset optimal ratio, thereby improving the generation effect and uniformity of microbubbles. Simultaneously, the spaced arrangement between the end of the guide surface 131 and the foaming element 21 also prevents the foaming element 21 from moving and directly contacting the guide surface 131, reducing friction and wear, and extending the service life of the equipment.

[0082] The microbubbler 2 also includes a fixing base 23. The fixing base 23 is located at the end of the mixing chamber 112 away from the liquid inlet 111.

[0083] The mixing chamber 112 has a stepped surface 142 whose diameter increases along the liquid inlet direction. The movable seat 221 is movably disposed between the stepped surface 142 and the fixed seat 23. The stepped surface 142 and the fixed seat 23 are provided to limit the movement of the movable seat 221.

[0084] The elastic element 222 abuts against the movable seat 221 and the fixed seat 23. When the inlet pressure is greater than the preset pressure, the elastic element 222 is compressed and stores energy. As the pressure increases, the movable seat 221 is pushed away from the inlet 111, thereby reducing the contact area between the foaming element 21 and the liquid. Conversely, when the inlet pressure is less than the preset pressure, the elastic element 222 releases the stored energy, pushing the movable seat 221 towards the inlet 111, increasing the contact area between the foaming element 21 and the liquid.

[0085] The movable seat 221 has a protruding connecting portion 141 on its outer stepped surface 142. The fixed seat 23 includes a fixed plate 231. Both ends of the fixed plate 231 are connected to the connecting portion 141 by fasteners 233. The middle part of the fixed plate 231 has an opening opposite to the liquid inlet 111. The fixed plate 231 on the outer periphery of the opening has a limiting portion 232, which is opposite to the second mounting cavity 2211b. The limiting portion 232 is limited and connected to the elastic member 222, fixing one end of the elastic member 222.

[0086] Preferably, the connecting part 141 is a screw post. The fixing plate 231 is a long strip fixing plate 231, and the fixing member 233 is a screw. The limiting part 232 is circumferentially protruding from the fixing plate 231 on the outer periphery of the opening.

[0087] The microbubbler 2 also includes a guide structure 24. The guide structure 24 extends between the fixed base 23 and the stepped surface 142, and is used to guide the moving base 221 to reciprocate, so as to prevent the moving base 221 from deviating during the reciprocating movement.

[0088] The movable seat 221 includes a fixing part 2212 and an annular mounting part 2211. A first mounting cavity 2211a and a second mounting cavity 2211b are provided on the mounting part 2211, which extends into the smaller inner diameter portion of the mixing chamber 112. A protruding annular portion is provided on the inner wall of the annular mounting part 2211, dividing the mounting part 2211 into the first mounting cavity 2211a and the second mounting cavity 2211b. The other end of the elastic member 222 is abutted against and mounted on the side of the annular portion near the liquid outlet.

[0089] The fixing part 2212 extends outward from the outer periphery of the mounting part 2211. The fixing part 2212 is movably sleeved on the guide structure 24 between the fixing seat 23 and the stepped surface 142. The guide structure 24 guides the fixing part 2212 to reciprocate axially. The fixing part 2212 includes a fixing plate 231 or a fixing platform. The guide structure 24 passes through the fixing seat 23, and the fixing seat 23 is axially movable relative to the guide structure 24.

[0090] The guiding structure 24 includes a guide post 241. One end of the guide post 241 is fixed to the housing 1, and the other end protrudes and extends to the fixing seat 23. The other end of the guide post 241 has a protruding limiting head 242 that abuts against the fixing plate 231 and is used to limit the fixing seat 23.

[0091] The housing 1 includes a first pipe segment 12, a second pipe segment 13, and a third pipe segment 14 that are coaxially connected in sequence and whose inner diameters increase sequentially. That is, the inner diameter of the third pipe segment 14 is larger than the inner diameter of the second pipe segment 13, and the inner diameter of the second pipe segment 13 is larger than the inner diameter of the first pipe segment 12. The stepped surface 142 is formed at the connection between the second pipe segment 13 and the third pipe segment 14.

[0092] Preferably, the cross-sections of the first pipe section 12 and the second pipe section 13 are circular or near-circular, and the cross-section of the third pipe section 14 is rectangular.

[0093] The Venturi structure 121 is disposed within the first pipe section 12.

[0094] The fixing plate 231 extends along the length of the cross-section of the third pipe segment 14. Two guide structures 24 are spaced apart on the step surface 142 along the length of the cross-section of the third pipe segment 14, and are located on both sides of the opening of the second pipe segment 13. Two connecting parts 141 are spaced apart on the step surface 142 along the length of the cross-section of the third pipe segment 14, and are located outside the two guide structures 24.

[0095] The guide surface 131 extends from the diameter-changing connection between the first pipe section 12 and the second pipe section 13 away from the inlet 111 into the second pipe section 13. The guide surface 131 is provided to extend axially or gradually offset outward in the peripheral direction.

[0096] A connecting post 132 is provided at the connection point of the outer wall of the second pipe section 13 and the third pipe section 14. The guide structure 24 passes through the step surface 142 into the connecting post 132 and is threadedly connected to the connecting post 132.

[0097] The fixing part 2212 has a recessed clearance cavity 2212a on the side facing the fixing seat 23 to avoid the limiting head 242. After the moving seat 221 moves away from the liquid inlet 111, the fixing part 2212 abuts against the fixing seat 23.

[0098] The present invention also provides a washing device, including a liquid inlet pipe and any of the microbubble generating devices described above. The microbubble generating device is connected to the liquid inlet pipe. The liquid inlet pipe can be used to inlet water or a mixture of detergent and water.

[0099] The washing equipment includes a washing machine and a dishwasher. Preferably, the washing equipment is a washing machine.

[0100] The washing equipment includes a water tank, and the microbubble generator is connected to or located inside the water tank, providing microbubble liquid to the water tank for washing or rinsing, etc.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A microbubble generator for a washing machine, characterized in that, include: The casing has an internal liquid supply channel; Microbubbler, including a bubbler element, is used to shear a gas-liquid mixture to generate microbubbles in the liquid; The foaming element is movably disposed within the liquid supply channel, and moves in response to the liquid inlet pressure to adjust the distance between itself and the liquid inlet of the liquid supply channel, thereby adjusting the area of ​​liquid sprayed onto the foaming element.

2. The microbubble generator according to claim 1, characterized in that, The foaming element is reciprocating along the liquid flow direction. When the inlet pressure is low, the foaming element moves closer to the inlet to reduce the spray area of ​​the liquid on the foaming element; when the inlet pressure is high, the foaming element moves away from the inlet to increase the spray area of ​​the liquid on the foaming element. Preferably, the liquid inlet is provided with a Venturi structure, which is used to form a gas-liquid mixture with the gas after the liquid is sprayed out, or to directly spray out the gas-liquid mixture and scatter it onto the bubbler.

3. The microbubble generator according to any one of claims 1-2, characterized in that, The microbubbler includes a support structure, and the aerating element is disposed on the support structure and opposite to the liquid inlet. The support structure is movably disposed within the liquid supply channel, and the aerating element moves within the liquid supply channel via the support structure.

4. The microbubble generator according to claim 3, characterized in that, The liquid supply channel includes a mixing chamber, and the support structure is telescopically clamped in the mixing chamber along the liquid flow direction. When the liquid inlet pressure is greater than the preset pressure, it drives the foaming element away from the liquid inlet. When the liquid inlet pressure is less than the preset pressure, it drives the foaming element to move towards the liquid inlet.

5. The microbubble generator according to any one of claims 3-4, characterized in that, The support structure includes an elastic element and a movable seat. The movable seat is movably disposed in the mixing chamber. The movable seat is provided with a first mounting chamber and a second mounting chamber connected in sequence along the liquid inlet direction. The foaming element is disposed in the first mounting cavity, and the elastic element abuts between the second mounting cavity and the mixing cavity; Preferably, the foaming element includes a foaming net, and the elastic element includes a spring.

6. The microbubble generator according to claim 5, characterized in that, The movable seat has a ring structure, and the first mounting cavity and the second mounting cavity are arranged sequentially along the axial direction; The inner wall of the mixing chamber between the liquid inlet and the foaming element is provided with an extended guide surface. The end of the guide surface extends into the first mounting chamber. During liquid injection, the end of the guide surface is spaced apart from the outer peripheral portion of the foaming element.

7. The microbubble generator according to any one of claims 5-6, characterized in that, It also includes a fixed seat, which is disposed at the end of the mixing chamber away from the liquid inlet. The mixing chamber has a stepped surface with a diameter that increases along the liquid inlet direction. The movable seat is movably disposed between the stepped surface and the fixed seat. The elastic element abuts between the movable seat and the fixed seat.

8. The microbubble generator according to claim 7, characterized in that, It also includes a guide structure that extends between the fixed seat and the stepped surface to guide the movable seat to reciprocate. Preferably, the movable seat includes a fixing part and an annular mounting part, the first mounting cavity and the second mounting cavity are disposed on the mounting part, and the mounting part extends into the smaller diameter portion of the mixing cavity. The fixing part extends outward from the outer periphery of the mounting part and is movably sleeved on the guide structure between the fixing seat and the stepped surface; Preferably, the guiding structure includes a guide post, one end of which is fixed to the housing, and the other end protrudes and extends to the fixing seat.

9. The microbubble generator according to any one of claims 7-8, characterized in that, The movable seat has a protruding connecting part on the stepped surface of its outer periphery. The fixed seat includes a fixed plate. The outer periphery of the fixed plate is connected to the connecting part. The middle part of the fixed plate has an opening opposite to the liquid inlet. The fixed plate on the outer periphery of the opening has a limiting part that is limited and connected to the elastic element.

10. A washing device, characterized in that, It includes a liquid inlet pipeline and a microbubble generator as described in any one of claims 1-9, wherein the microbubble generator is connected to the liquid inlet pipeline.

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