Bubble generating device and water purifier comprising same

Abstract

This utility model provides a bubble generating device and a water purifier containing the same. The bubble generating device includes: an upper shell and a lower shell, the lower shell being connected to the upper shell to form a cavity; and a turbulence-inducing component installed in the cavity. The turbulence-inducing component includes a turbulence-inducing part and a buffer part connected together. Along the water outlet direction, the buffer part is located between the turbulence-inducing part and the water outlet channel. The turbulence-inducing part is used to turbulent the water flowing in from the inlet, and the buffer part extends towards the direction close to the water outlet channel and has a buffer cavity. The buffer cavity is used to receive the water and water-air mixture after being turbulent by the turbulence-inducing part. The bottom of the buffer cavity has a through hole, wherein the through hole is connected to the water outlet channel. The above-mentioned bubble generating device can generate micro-nano bubbles purely by structural gas mixing. It not only eliminates the need for a booster pump and a gas mixing tank, reducing volume and saving costs, but also effectively reduces noise and is safe and reliable. Moreover, the above-mentioned bubble generating device has fewer components, a smaller size, and occupies less space.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a bubble generating device and a water purifier containing the same. Background Technology

[0002] Water purifiers often require the generation of microbubbles for cleaning water. Due to their unique surface physicochemical properties, such as large surface area and long life cycle, microbubbles can make cleaning more thorough. In drinking water, microbubbles can be combined with ice to make soda water, which is very popular among young people.

[0003] There are two main types of existing bubble generating devices. One type is the bubble generating device for water taps disclosed in Chinese patent application CN112177107A. The bubbles produced are not micro- or nano-bubbles, and while it is available for use in 1 / 4-inch kitchen faucets and bathroom fixtures, it is not used in 1 / 2-inch gooseneck water purifier faucets. The other type is the bubble generating device disclosed in Chinese patent application CN111302513A, which requires a booster pump, an air-water mixing tank, an aerator, a one-way valve, and even a pressure stabilizing tank.

[0004] Among them, the bubble device for the water outlet disclosed in Chinese patent application CN112177107A has relatively coarse bubbles, which are not nanoscale. The bubble generator disclosed in Chinese patent application CN111302513A has many parts, resulting in a large overall size and high cost. Moreover, the mixing of air by the booster pump also leads to increased noise. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of existing bubble generating devices, which require booster pumps, air-water mixing tanks, aerators, one-way valves, and even pressure stabilizing tanks. Not only do these numerous parts lead to a large overall size and high cost, but the booster pump's air mixing also increases noise. This utility model provides a bubble generating device and a water purifier containing the same.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A bubble generating device for use in a water purifier, the bubble generating device comprising:

[0008] The upper casing has a water inlet and an air inlet;

[0009] The lower shell has an open structure with its top facing the upper shell. The lower shell is connected to the upper shell to form a cavity. Both the water inlet and the air inlet are connected to the cavity. The bottom of the lower shell has a water outlet channel that is connected to the cavity. The diameter of the water outlet channel gradually increases along the water outlet direction.

[0010] A flow-dispersing assembly is installed in the cavity. The flow-dispersing assembly includes a flow-dispersing part and a buffer part connected together. Along the water outlet direction, the buffer part is located between the flow-dispersing part and the water outlet channel. The flow-dispersing part is used to turbulent the water flowing in from the inlet. The buffer part extends towards the water outlet channel and has a buffer cavity. The buffer cavity is used to receive the water and water-air mixture after being turbulent by the flow-dispersing part. The bottom of the buffer cavity has a through hole.

[0011] The through hole is connected to the water outlet channel.

[0012] In this design, the aforementioned turbulence section disturbs and mixes the air, which is beneficial for dissolving the air inside the cavity. The aforementioned buffer cavity receives the water and water-air mixture after being disturbed by the turbulence section, further mixing the air and water thoroughly to dissolve the air in the buffer cavity as much as possible, effectively improving the generation efficiency of micro-nano bubbles. Initially, the water pressure is low, and a water seal is formed at the upper end of the water outlet channel. When the water pressure increases to a critical point, the water that has dissolved the air quickly flows out from the water outlet channel. When the water flow rate reaches a certain value, a negative pressure is generated inside the water, and the gas dissolved in the air is released, forming micro-nano bubbles. In other words, the aforementioned bubble generating device can generate micro-nano bubbles purely through structural gas mixing. It not only eliminates the need for a booster pump and a gas mixing tank, reducing volume and saving costs, but also effectively reduces noise and is safe and reliable. In addition, the diameter of the water outlet channel gradually increases along the water outlet direction, forming sufficient negative pressure to form micro-nano bubbles. Moreover, the aforementioned bubble generating device has relatively few components, a small size, and occupies little space.

[0013] Preferably, the width of the buffer section gradually decreases along the direction towards the water outlet channel, and the shape of the buffer section is adapted to the shape of the lower shell.

[0014] In this design, the shape of the buffer section is adapted to the shape of the lower shell, which helps to make the most efficient use of the cavity space as a buffer chamber. In other words, the space for receiving water and water-air mixture in the buffer chamber is as large as possible to improve the efficiency of generating micro-nano bubbles. In addition, the width of the buffer section gradually decreases along the direction towards the water outlet channel, that is, the distance between the through hole and the water outlet channel is relatively small. This arrangement helps the water and water-air mixture in the buffer chamber to converge to the through hole and quickly enter the water outlet channel through the through hole, thereby further improving the efficiency of generating micro-nano bubbles.

[0015] Preferably, the turbulence-disrupting part includes a connected mounting part and a turbulence-disrupting body. The turbulence-disrupting body is provided with a plurality of turbulence-disrupting ports. The mounting part is located between the upper end face of the lower housing and the lower end face of the upper housing. The plurality of turbulence-disrupting ports are arranged at intervals along the circumference of the turbulence-disrupting body and are connected between the buffer part and the mounting part.

[0016] In this design, the arrangement of multiple turbulence ports facilitates the thorough agitation of water and air within the cavity. Furthermore, the multiple turbulence ports are spaced apart circumferentially along the turbulence body and connected between the buffer section and the mounting section. In this way, water is agitated through the turbulence ports and then enters the buffer cavity from the full circumference of the turbulence body, allowing the agitated water to dissolve the air within the buffer cavity. The mounting section's arrangement provides a large mounting area for the turbulence section, resulting in a more stable installation.

[0017] Preferably, both the turbulence-disrupting body and the mounting part are annular. The mounting part surrounds the outer circumference of the turbulence-disrupting body, and the buffer part extends from the bottom surface of the turbulence-disrupting body towards the water outlet channel. The buffer part and the turbulence-disrupting body are coaxially arranged, and the outlet of the turbulence-disrupting body is connected to the inlet of the buffer part.

[0018] In this design, the mounting section is circumferentially wrapped around the outer periphery of the turbulence-disrupting body to increase the contact area between the two and improve their compactness and stability. In addition, the buffer section and the turbulence-disrupting body are coaxially arranged, which makes the mounting section uniformly stressed and less prone to damage. The outlet of the turbulence-disrupting body is connected to the inlet of the buffer section to facilitate the entry of the disturbed water into the buffer chamber.

[0019] Preferably, the end of the buffer section facing the main body of the turbulence is an open structure, and the open structure is the inlet of the buffer section;

[0020] And / or, the buffer section, the turbulence body, and the mounting section are integrally molded structures.

[0021] In this design, the end of the buffer section facing the turbulence-disrupting body is an open structure. This arrangement not only increases the buffer space of the buffer chamber but also facilitates the entry of water and water-air mixture. The buffer section, the turbulence-disrupting body, and the mounting section are integrally molded. The above arrangement greatly reduces the number of parts, avoids the sound generated by the interaction between parts, thus reducing noise. At the same time, it also reduces the overall volume of the bubble generator and the space occupied by the bubble generator.

[0022] Preferably, a first sealing ring is provided between the upper surface of the mounting part and the lower end face of the upper housing, and a second sealing ring is provided between the lower surface of the mounting part and the upper surface of the lower housing.

[0023] In this design, the aforementioned first and second sealing rings help to increase the airtightness of the bubble generating device and prevent leakage of air, water, and water-air mixtures in the cavity.

[0024] Preferably, the bubble generating device further includes an air supply device, which supplies air to the cavity through an air inlet;

[0025] And / or, the bubble generating device also includes a quick-connect fitting that is connected to the outlet port of the water outlet channel.

[0026] In this design, the air replenishment device facilitates timely replenishment of air to the cavity and timely mixing of air and water; the quick-connect fitting allows the water flow to fully utilize the structure of the water outlet channel to create sufficient negative pressure to form micro-nano bubbles.

[0027] Preferably, the air replenishment device includes an air plug located at the air inlet and an end cap that limits the air plug to the air inlet. The end cap has an air inlet hole. The end cap is installed on the upper housing and forms a receiving cavity with the outer surface of the upper housing. The air inlet and the air plug are both located in the receiving cavity. A third sealing ring is provided between the end cap and the upper housing.

[0028] In this design, the third sealing ring helps to increase the airtightness of the bubble generator, and the formation of the containment cavity helps to prevent the air inlet and air plug from being affected by the external environment.

[0029] Preferably, the upper and / or lower end faces of the air plug are provided with a filter unit.

[0030] In this design, the filter unit is designed to facilitate the filtration of external bacteria and viruses.

[0031] This utility model also provides a water purifier, which includes the above-mentioned bubble generating device.

[0032] The positive and progressive effects of this invention are as follows: the aforementioned turbulence section disturbs and mixes the air within the cavity, fully dissolving it. The aforementioned buffer cavity receives the water and water-air mixture after being turbulent by the turbulence section, further mixing the air and water thoroughly to dissolve the air in the buffer cavity as much as possible, effectively improving the generation efficiency of micro-nano bubbles. Initially, the water pressure is low, and a water seal is formed at the upper end of the water outlet channel. When the water pressure increases to a critical point, the water dissolving the air rapidly flows out from the water outlet channel. When the water flow rate reaches a certain value, a negative pressure is generated inside the water, and the gas dissolved in the air is released, forming micro-nano bubbles. In other words, the aforementioned bubble generating device can generate micro-nano bubbles purely through structural air mixing, eliminating the need for a booster pump and mixing tank, reducing volume and saving costs, and effectively reducing noise, ensuring safety and reliability. Furthermore, the diameter of the water outlet channel gradually increases along the water outlet direction, creating sufficient negative pressure to form micro-nano bubbles. Moreover, the aforementioned bubble generating device has fewer components, a smaller size, and occupies less space. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of a bubble generating device according to an embodiment of the present invention.

[0034] Figure 2 This is a cross-sectional structural schematic diagram of a bubble generating device according to an embodiment of the present invention.

[0035] Figure 3 for Figure 2 A partial enlarged view of the air replenishment device.

[0036] Figure 4 This is a three-dimensional structural diagram of a turbulence component according to an embodiment of the present invention.

[0037] Figure 5 This is a three-dimensional structural schematic diagram of a turbulence component according to an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] Bubble generator 100

[0040] Upper shell 1

[0041] Inlet 11

[0042] Air intake 12

[0043] Lower shell 2

[0044] Cavity 21

[0045] Water outlet channel 22

[0046] spoiler component 3

[0047] 31 turbulence section

[0048] Disruptor Entity 311

[0049] Installation section 312

[0050] Mounting hole 3121

[0051] 313 spoiler port

[0052] Buffer section 32

[0053] Buffer chamber 321

[0054] Via 33

[0055] First sealing ring 34

[0056] Second sealing ring 35

[0057] Air supply device 4

[0058] Airlock 41

[0059] End cap 42

[0060] Receiving cavity 43

[0061] Third sealing ring 44

[0062] Filter unit 45

[0063] 5 Express Delivery Detailed Implementation

[0064] The present invention will be further described below with reference to the accompanying drawings and by way of embodiments, but the present invention is not limited to the scope of the embodiments thereon.

[0065] like Figure 1-5 As shown, this embodiment provides a bubble generating device 100 for use in a water purifier. The bubble generating device 100 includes: an upper housing 1 having a water inlet 11 and an air inlet 12; a lower housing 2 having an open structure with its top facing the upper housing 1, and the lower housing 2 connected to the upper housing 1 to form a cavity 21; both the water inlet 11 and the air inlet 12 are connected to the cavity 21; the bottom of the lower housing 2 has a water outlet channel 22 connected to the cavity 21, and the diameter of the water outlet channel 22 gradually increases along the water outlet direction; and a turbulence group. Component 3 is installed in cavity 21. The turbulence assembly 3 includes a turbulence portion 31 and a buffer portion 32 connected together. Along the water outlet direction, the buffer portion 32 is located between the turbulence portion 31 and the water outlet channel 22. The turbulence portion 31 is used to turbulent the water flowing in from the inlet 11. The buffer portion 32 extends toward the water outlet channel 22 and has a buffer cavity 321. The buffer cavity 321 is used to receive the water and water-air mixture after being turbulent by the turbulence portion 31. The bottom of the buffer cavity 321 has a through hole 33; wherein, the through hole 33 communicates with the water outlet channel 22.

[0066] In this embodiment, the aforementioned turbulence section 31 agitates and mixes the air, fully dissolving the air within the cavity 21. The aforementioned buffer cavity 321 receives the water and water-air mixture after being agitated by the turbulence section 31, further mixing the air and water thoroughly to dissolve the air in the buffer cavity 321 as much as possible, effectively improving the generation efficiency of micro-nano bubbles. Initially, the water pressure is low, and a water seal is formed at the upper end of the water outlet channel 22. When the water pressure increases to a critical point, the water dissolving the air rapidly flows out from the water outlet channel 22. When the water flow rate reaches a certain value, a negative pressure is generated inside the water, and the gas dissolved in the air is released, forming micro-nano bubbles. In other words, the aforementioned bubble generating device 100 can generate micro-nano bubbles purely through structural gas mixing, which not only eliminates the need for a booster pump and a gas mixing tank, reducing volume and saving costs, but also effectively reduces noise and is safe and reliable. Furthermore, the diameter of the water outlet channel 22 gradually increases along the water outlet direction, forming sufficient negative pressure to form micro-nano bubbles. Moreover, the aforementioned bubble generating device 100 has fewer components, a smaller size, and occupies less space.

[0067] It should be noted that the upper port of the water outlet channel 22 is a small port, and the lower port of the water outlet channel 22 is a large port. According to the fluid continuity theorem, the flow velocity of water increases through the upper port of the water outlet channel 22. According to Bernoulli's equation, kinetic energy + gravitational potential energy + pressure potential energy = constant. When there is no significant height difference, gravitational potential energy can be ignored. When the flow velocity reaches a certain value, negative pressure is generated inside the liquid, and gas nuclei dissolved in the air are precipitated to form micro-nano bubbles. This micro-nano bubble generator 100 relies solely on structural gas mixing, which not only eliminates the need for a booster pump and gas mixing tank, reducing volume and saving costs, but also effectively reduces noise and is safe and reliable. In addition, the water outlet channel 22 is frustum-shaped. The arrangement of the turbulence component 3 divides the cavity 21 into an upper cavity and a lower cavity, which are connected by the aforementioned through hole 33. The buffer cavity 321 is part of the upper cavity.

[0068] It should also be noted that the cavity 21 and the water outlet channel 22 form a Venturi-like structure, narrow in the middle and wide at both ends. This structure generates micro- and nano-bubbles through the working principle of a Venturi tube, which involves narrowing the water and gas flow to accelerate their velocity. This creates a "vacuum" zone in the water outlet channel 22, generating sufficient negative pressure to form micro- and nano-bubbles. Figure 1-5 As shown, the width of the buffer portion 32 gradually decreases along the direction toward the water outlet channel 22, and the shape of the buffer portion 32 is adapted to the shape of the lower shell 2.

[0069] In this embodiment, the arrangement of the buffer portion 32 to match the shape of the lower shell 2 is conducive to making the most efficient use of the space of the cavity 21 as a buffer cavity 321. That is, the buffer cavity 321 has as much space as possible to receive the water and water-air mixture, thereby improving the efficiency of generating micro-nano bubbles. In addition, the width of the buffer portion 32 gradually decreases along the direction toward the water outlet channel 22, that is, the distance between the through hole and the water outlet channel is relatively small. This arrangement is conducive to the water and water-air mixture in the buffer cavity 321 converging to the through hole 33 and quickly entering the water outlet channel 22 through the through hole 33, thereby further improving the efficiency of generating micro-nano bubbles.

[0070] like Figure 1-5 As shown, the turbulence-disrupting part 31 includes a connected mounting part 312 and a turbulence-disrupting body 311. The turbulence-disrupting body 311 is provided with a plurality of turbulence-disrupting ports 313. The mounting part 312 is located between the upper end face of the lower housing 2 and the lower end face of the upper housing 1. The plurality of turbulence-disrupting ports 313 are arranged at intervals along the circumference of the turbulence-disrupting body 311 and are connected between the buffer part 32 and the mounting part 312.

[0071] In this embodiment, the arrangement of multiple turbulence ports 313 facilitates sufficient disturbance of the water and air in the cavity 21. Furthermore, the multiple turbulence ports 313 are arranged at intervals along the circumference of the turbulence body 311 and connected between the buffer portion 32 and the mounting portion 312. In this way, the water will be turbulent through the turbulence ports 313 and then enter the buffer cavity 321 from the full circumference of the turbulence body 311, so as to facilitate the turbulent water to enter the buffer cavity 321 to dissolve the air in the buffer cavity 321. The arrangement of the mounting portion 312 makes the mounting area of ​​the turbulence portion 31 large, making its installation more stable.

[0072] It should be noted that the turbulence port 313 is located inside the cavity 21. Part of the water agitated by the turbulence port 313 enters the buffer cavity 321 of the upper cavity, then enters the lower cavity through the through hole 33, and is discharged through the water outlet channel 22. Another part is discharged directly through the water outlet channel 22 from the lower cavity. The water outlet channel 22 has an upper port diameter of 1-1.5 mm, a lower port diameter of 3-8 mm, and a height of 15-40 mm. Furthermore, the specific structure of the turbulence component 3 can also be other components capable of agitating water, such as stirring components. Additionally, such as... Figure 1 and Figure 4 As shown, the mounting part 312 is provided with multiple connecting lugs at intervals, and the connecting lugs are provided with multiple mounting holes 3121 to facilitate installation.

[0073] like Figure 1-5 As shown, both the turbulence-disrupting body 311 and the mounting part 312 are annular. The mounting part 312 surrounds the outer circumferential surface of the turbulence-disrupting body 311. The buffer part 32 extends from the bottom surface of the turbulence-disrupting body 311 in the direction close to the water outlet channel 22. The buffer part 32 and the turbulence-disrupting body 311 are coaxially arranged, and the outlet of the turbulence-disrupting body 311 is connected to the inlet of the buffer part 32.

[0074] In this embodiment, the mounting part 312 is circumferentially surrounded on the outer peripheral surface of the turbulence-disrupting body 311 to increase the contact area between the two and improve their compactness and stability. In addition, the buffer part 32 and the turbulence-disrupting body 311 are coaxially arranged, so that the mounting part 312 is subjected to uniform force and is not easily damaged. The outlet of the turbulence-disrupting body 311 is connected to the inlet of the buffer part 32 to facilitate the entry of the disturbed water into the buffer chamber 321.

[0075] It should be noted that the mounting part 312 is not located in the cavity 21.

[0076] like Figure 1-5 As shown, the end of the buffer portion 32 facing the turbulence-disrupting body 311 is an open structure, and the open structure is the inlet of the buffer portion 32; and / or, the buffer portion 32, the turbulence-disrupting body 311 and the mounting portion 312 are integrally formed structures.

[0077] In this embodiment, the end of the buffer portion 32 facing the turbulence-disrupting body 311 is an open structure. This arrangement not only increases the buffer space of the buffer cavity 321, but also facilitates the entry of water and water-air mixture. The buffer portion 32, the turbulence-disrupting body 311 and the mounting portion 312 are integrally formed. The above arrangement greatly reduces the number of parts, avoids the sound generated by the interaction between parts, and reduces noise. At the same time, it also reduces the overall volume of the bubble generator 100 and reduces the space occupied by the bubble generator 100.

[0078] It should be noted that the open structure faces the inlet 11, and the buffer part 32, the turbulence-disrupting body 311 and the mounting part 312 can also be processed separately.

[0079] like Figure 1-5 As shown, a first sealing ring 34 is provided between the upper surface of the mounting part 312 and the lower end face of the upper housing 1, and a second sealing ring 35 is provided between the lower surface of the mounting part 312 and the upper surface of the lower housing 2.

[0080] In this embodiment, the provision of the first sealing ring 34 and the second sealing ring 35 is beneficial to increasing the airtightness of the bubble generating device 100 and to preventing the leakage of air, water and water-air mixture in the cavity 21.

[0081] It should be noted that the first sealing ring 34 and the second sealing ring 35 can also be other structures that can achieve sealing, such as oil seal structures and water seal structures.

[0082] like Figure 1-5 As shown, the bubble generating device 100 also includes an air replenishment device 4, which replenishes air to the cavity 21 through the air inlet 12; and / or, the bubble generating device 100 also includes a quick connector 5, which is connected to the water outlet port of the water outlet channel 22.

[0083] In this embodiment, the air replenishment device 4 helps to replenish air to the cavity 21 in a timely manner and mix the air with water in a timely manner; the quick-connect piece 5 allows the water flow to make full use of the structure of the water outlet channel 22 to form sufficient negative pressure to form micro-nano bubbles.

[0084] It should be noted that the water pressure and air pressure inside the cavity 21 are constantly changing. The air supply device 4 supplies air and the water outlet channel 22 exhausts air, so that the cavity 21 achieves a dynamic air pressure balance. In addition, the quick connector 5 is bent at 90 degrees.

[0085] like Figure 1-5As shown, the air replenishment device 4 includes an air plug 41 disposed at the air inlet 12 and an end cap 42 that limits the air plug 41 to the air inlet 12. The end cap 42 has an air inlet hole. The end cap 42 is mounted on the upper housing 1 and forms a receiving cavity 43 with the outer surface of the upper housing 1. The air inlet 12 and the air plug 41 are both located in the receiving cavity 43. A third sealing ring 44 is provided between the end cap 42 and the upper housing 1.

[0086] In this embodiment, the third sealing ring 44 is provided to increase the airtightness of the bubble generating device 100, and the formation of the receiving cavity 43 is beneficial to prevent the air inlet 12 and the air plug 41 from being affected by the external environment.

[0087] It should be noted that the fixing method of the upper housing 1 and the end cover 42 is not limited to screws, threads or ultrasonic welding; in addition, the air plug 41 is preferably a cup-shaped structure, which can seal quickly and effectively.

[0088] like Figure 1-5 As shown, the upper and / or lower end faces of the air plug 41 are provided with a filter unit 45.

[0089] In this embodiment, the filter unit 45 is designed to facilitate the filtration of external bacteria and viruses.

[0090] It should be noted that the filter unit 45 is a layer of meltblown polypropylene with a precision of 0.45 micrometers or higher, or other materials with a filtering effect.

[0091] This utility model also provides a water purifier, which includes the above-mentioned bubble generating device 100.

[0092] It should be noted that the bubble generator 100 in this application is very small in size and consists of only a few plastic and rubber parts, namely the aforementioned upper housing 1, lower housing 2 and turbulence assembly 3, etc., and is inexpensive. In addition, the bubble generator 100 in this application has no booster pump structure, resulting in low noise and a good user experience.

[0093] It should also be noted that the working process of the bubble generating device 100 in this application is as follows: air enters through the air inlet 12 and water enters through the water inlet 11. The water is disturbed and mixed by the turbulence component 3, which fully dissolves the air in the chamber. The water after turbulence enters the buffer section to dissolve the air in the buffer chamber 321, and then flows out through the through hole 33 from the water outlet channel. Initially, the water pressure is low, and a water seal is formed at the upper port of the water outlet channel 22. When the water pressure increases to the critical point, the water that has dissolved the air quickly flows out from the water outlet channel 22. When the water flow rate is high enough, a negative pressure is generated inside the water, and the gas dissolved in the air is released to form micro-nano bubbles. The water that has dissolved the air quickly flows out from the water outlet. During the above process, air is continuously replenished through the air plug 41.

[0094] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 utility model 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 limitations on this utility model.

[0095] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A bubble generating device, said bubble generating device being used in a water purifier, characterized in that, The bubble generating device includes: The upper housing has a water inlet and an air inlet; The lower housing has its top facing the upper housing and is an open structure. The lower housing is connected to the upper housing to form a cavity. The water inlet and the air inlet are both connected to the cavity. The bottom of the lower housing has a water outlet channel connected to the cavity, and the diameter of the water outlet channel gradually increases along the water outlet direction. A flow-dispersing assembly is installed in the cavity. The flow-dispersing assembly includes a flow-dispersing part and a buffer part connected together. Along the water outlet direction, the buffer part is located between the flow-dispersing part and the water outlet channel. The flow-dispersing part is used to turbulent the water flowing in from the inlet. The buffer part extends towards the water outlet channel and has a buffer cavity. The buffer cavity is used to receive the water and water-air mixture after being turbulent by the flow-dispersing part. The bottom of the buffer cavity has a through hole. The through hole is connected to the water outlet channel.

2. The bubble generating device as described in claim 1, characterized in that, The width of the buffer section gradually decreases along the direction toward the water outlet channel, and the shape of the buffer section is adapted to the shape of the lower shell.

3. The bubble generating device as described in claim 2, characterized in that, The turbulence-disrupting part includes a connected mounting part and a turbulence-disrupting body. The turbulence-disrupting body is provided with a plurality of turbulence-disrupting ports. The mounting part is located between the upper end face of the lower housing and the lower end face of the upper housing. The plurality of turbulence-disrupting ports are arranged at intervals along the circumference of the turbulence-disrupting body and are connected between the buffer part and the mounting part.

4. The bubble generating device as described in claim 3, characterized in that, Both the turbulence-disrupting body and the mounting part are annular. The mounting part surrounds the outer circumferential surface of the turbulence-disrupting body. The buffer part extends from the bottom surface of the turbulence-disrupting body towards the water outlet channel. The buffer part and the turbulence-disrupting body are coaxially arranged, and the outlet of the turbulence-disrupting body is connected to the inlet of the buffer part.

5. The bubble generating device as described in claim 4, characterized in that, The end of the buffer section facing the main body of the turbulence is an open structure, and the open structure is the inlet of the buffer section; And / or, the buffer portion, the turbulence-disrupting body, and the mounting portion are integrally formed structures.

6. The bubble generating apparatus as described in claim 3, characterized in that, A first sealing ring is provided between the upper surface of the mounting part and the lower end face of the upper housing, and a second sealing ring is provided between the lower surface of the mounting part and the upper surface of the lower housing.

7. The bubble generating apparatus as described in claim 1, characterized in that, The bubble generating device further includes an air supply device, which supplies air to the cavity through the air inlet; And / or, the bubble generating device further includes a quick-connect fitting, which is connected to the water outlet port of the water outlet channel.

8. The bubble generating apparatus as described in claim 7, characterized in that, The air replenishment device includes an air plug located at the air inlet and an end cap that limits the air plug to the air inlet. The end cap has an air inlet hole. The end cap is installed on the upper housing and forms a receiving cavity with the outer surface of the upper housing. The air inlet and the air plug are both located in the receiving cavity. A third sealing ring is provided between the end cap and the upper housing.

9. The bubble generating apparatus as described in claim 8, characterized in that, The upper and / or lower end faces of the air plug are provided with a filter unit.

10. A water purifier, characterized in that, The water purifier includes a bubble generating device as described in any one of claims 1-9.

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