Micro-nano bubble water generating device and cleaning device free of cleaning liquid

Abstract

The present application relates to the field of micro-nano bubble water generating device, especially to a micro-nano bubble water generating device and a cleaning device without cleaning liquid, water flows through the flow guide channel on the flow guide device, so that it enters the water inlet cavity in an inclined rotating manner, and the water flow improves the flow rate by revolving along the inner wall of the water inlet cavity with gradually reducing diameter in the water flow direction, and advances at the same time, diffuses in the water outlet cavity with gradually expanding diameter in the water flow direction, and is sprayed out, so that under the change of liquid water pressure, the micro-nano bubbles generated from cavitation are effectively generated from the dissolved air in the water flow. Moreover, the outer sleeve is sleeved on the inner pipeline and surrounds the water outlet pipeline, a gas charging cavity is formed between the outer sleeve and the water outlet pipeline, the surface of the outer sleeve is provided with a vent hole communicating with the gas charging cavity, a water pump is additionally arranged at the water outlet to pump water, a negative pressure is formed in the gas charging cavity, air is sucked in through the vent hole provided with a one-way valve, and the generation rate of micro-nano bubbles in water is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of micro-nano bubble water generating device, in particular to a micro-nano bubble water generating device and a cleaning device without cleaning liquid. BACKGROUND

[0002] Water containing micron bubbles with a diameter less than 100 microns and nano bubbles with a diameter of about 50nm-500nm is called micro-nano bubble water, and the diameter of human pores is generally between 80 microns and 100 microns. Micro-nano bubble water can enter the pores, adsorb dirt and skin metabolites inside the pores, and float out, thereby achieving deep and fine cleaning. In addition, micro-nano bubble water also has the functions of improving skin moisture, generating negative ions, breaking down stubborn oil stains, removing washing residues, removing pesticide residues, and inhibiting and killing bacteria. Because it has cleaning advantages that ordinary water does not have, it has been widely concerned and applied.

[0003] Existing micron bubble generating devices usually mix water and air, pressurize, and make the gas be pressed into the water to form micron bubbles or larger bubbles, and are mostly used for aquaculture. In the prior art, the water inlet and the water outlet of the micro-nano bubble water generating device are only formed into micro-nano bubbles by the air dissolved in the water, but the amount of air dissolved in the water is not much, so the actual amount of micro-nano bubbles generated is limited, which will reduce the user's water cleaning experience.

[0004] Nowadays, daily cleaning equipment generally needs to use cleaning liquid containing chemical components, such as hair washing machines, dishwashers, sweeping and mopping integrated machines, washing machines, etc. all need to use cleaning liquid containing chemical components, which has the risk of environmental pollution, such as cleaning hair and scalp, and the wastewater containing shampoo after washing also has environmental pollution problems. SUMMARY

[0005] To solve the above problems, the present application provides a micro-nano bubble water generating device and a cleaning device without cleaning liquid, which actively supplements air from a specific structure air inlet assembly through two water pumps, and forms pressure and negative pressure through a micro-nano bubble water generating device with a special structure, so that more gas can effectively generate micro-nano bubbles.

[0006] To achieve the above object, the technical scheme adopted by the present application is: a micro-nano bubble water generating device, comprising an external sleeve, a flow guide device, and an internal pipeline, wherein the internal pipeline is internally provided with a flow guide cavity and a water inlet cavity which are sequentially communicated, and the end of the internal pipeline is further connected with a water outlet pipeline, the water outlet pipeline is internally provided with a water outlet cavity which is communicated with the water inlet cavity; wherein the flow guide device located in the flow guide cavity is provided with flow guide channels which are annularly arranged around the center line thereof, and the flow guide channels are obliquely arranged to generate spiral water flow; wherein the inner diameter of the water inlet cavity gradually decreases along the direction close to the water outlet cavity, the inner diameter of the water outlet cavity gradually increases along the direction away from the water inlet cavity, and the oblique angle of the inner diameter reduction of the water inlet cavity is greater than the oblique angle of the inner diameter expansion of the water outlet cavity; the external sleeve is sleeved on the internal pipeline and surrounds the water outlet pipeline, a gas filling cavity is formed between the external sleeve and the water outlet pipeline, and the surface of the external sleeve is provided with a gas vent which is communicated with the gas filling cavity, and the gas vent is provided with a first one-way valve.

[0007] As a further optimization scheme, the inner wall of the flow guide cavity is provided with a plurality of positioning grooves, and the outer side wall of the flow guide device is provided with corresponding positioning protrusions, and the positioning protrusions of the flow guide device are matched with the positioning grooves.

[0008] As a further optimization scheme, the internal pipeline further comprises a transition cavity for communicating the water inlet cavity and the water outlet cavity, and the inner diameter of the transition cavity is the minimum value of the inner diameter of the water inlet cavity.

[0009] As a further optimization scheme, the outer wall of the internal pipeline is provided with external threads, and the inner wall of the external sleeve is provided with internal threads, wherein the external sleeve is screwed with the internal threads and the external threads of the internal pipeline.

[0010] As a further optimization scheme, the surface of the flow guide plate is provided with a plurality of convex points.

[0011] As a further optimization scheme, the length of the water inlet cavity is shorter than the length of the water outlet cavity.

[0012] As a further optimization scheme, the length of the water inlet cavity is shorter than the length of the water outlet cavity.

[0013] The beneficial effects of the present application are that: according to the micro-nano bubble water generating device of the present application, water flows through the flow guide channel on the flow guide device, and therefore enters the water inlet cavity in an inclined manner, and the diameter of the water inlet cavity gradually decreases, so that the water flow advances while revolving along the inner wall of the water inlet cavity to increase the flow rate, and is sprayed after being diffused in the water outlet cavity, so that under the change of liquid water pressure, the micro-nano bubbles originating from cavitation are effectively generated from the dissolved air in the water flow. Moreover, in order to increase the micro-nano bubbles in the present application, an outer sleeve is sleeved on the inner pipeline and surrounds the water outlet pipeline, an air charging cavity is formed between the outer sleeve and the water outlet pipeline, and the surface of the outer sleeve is provided with an air hole communicating with the air charging cavity. By increasing the water pump at the rear end to form negative pressure in the air charging cavity, air is sucked through the air hole provided with the first one-way valve, so as to ensure the stability of the environment of the micro-nano bubbles generated in the diffusion section of the water outlet cavity of the present technical solution.

[0014] The present application also provides a cleaning device without cleaning liquid, which comprises a clean water tank, a first water pump, a second water pump, a cleaning device and a micro-nano bubble water generating device. The clean water tank is communicated with the water inlet cavity of the inner pipeline through the first water pump, and the end of the outer sleeve close to the water outlet cavity is communicated with the second water pump, and the second water pump is communicated with the water inlet of the cleaning device.

[0015] As a further optimization scheme, the water discharge amount per unit time of the second water pump is greater than that of the first water pump, so that the air charging cavity becomes negative pressure.

[0016] As a further optimization scheme, the output port of the first one-way valve is arranged in the air hole in an inclined manner.

[0017] As a further optimization scheme, the clean water tank is communicated with the first water pump through a water inlet pipe, and the water inlet pipe is also connected with an air supplement assembly, wherein the air supplement assembly comprises an air supplement pipe and a second one-way valve, one end of the air supplement pipe extends out of the clean water tank, and the other end is communicated with the input port of the water inlet pipe through the second one-way valve.

[0018] Moreover, the present application applies the micro-nano bubble water generating device to the cleaning device (the cleaning device can be a floor cleaning robot, a hair washing machine, etc.), wherein the first water pump pressurizes the clean water in the clean water tank and enters the micro-nano bubble water generating device, a large amount of micro-nano bubbles can be generated in the water, and the clean water containing a large amount of micro-nano bubbles is delivered to the water outlet end of the cleaning device by the second water pump. For example, if the cleaning device is a hair washing machine, it is in contact with the user's hair; after soaking and washing with the clean water rich in a large amount of micro-nano bubbles, the oil and other adhesive dirt on the hair and scalp can be washed clean under the decomposition of the micro-nano bubbles, and at the same time, the micro-nano bubbles can penetrate into the hair follicles to perform deep cleaning and nourish the hair roots.

[0019] In addition, the second water pump functions to form a negative pressure in the air charging cavity, to suck in air through the air vent provided with a one-way valve; and the suction of air balances the water pressure of the two water pumps naturally, ensures the stable environment of the micro-nano bubbles generated in the diffusion section of the water outlet cavity of the technical solution, improves the micro-nano bubble generation rate, and in addition, can increase the content of micron or millimeter bubbles in the water, which still has a certain cleaning effect on the water flow used in time. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a micro-nano bubble water generating device.

[0021] Figure 2 is a sectional structural schematic diagram of a micro-nano bubble water generating device.

[0022] Figure 3 is a sectional structural schematic diagram of an internal pipeline and a water outlet pipeline.

[0023] Figure 4 is a structural schematic diagram of an internal pipeline and a water outlet pipeline.

[0024] Figure 5 is a structural schematic diagram of a flow guide device.

[0025] Figure 6 is a structural schematic diagram of a shampoo machine for shampoo without washing.

[0026] BRIEF DESCRIPTION OF DRAWINGS: external sleeve 1, air vent 11, internal thread 12, internal pipeline 2, external thread 20, flow guide cavity

[0027] 21, positioning groove 211, water inlet cavity 22, transition cavity 23, water outlet pipeline 3, water outlet cavity 31, flow guide device 4, flow guide plate 41, positioning block 42, flow guide passage 43, micro-nano bubble water generating device 10, clean water tank 101, air supplement pipe 102, second one-way valve 103, water delivery pipe 104, first water pump 105, first one-way valve 106, water inlet pipe 107, second water pump 108, drain pipe 109, shampoo machine 110.

[0028] DETAILED DESCRIPTION

[0029] Please refer to Figures 1-5 the present application relates to a kind of micro-nano bubble water generating device 10, external sleeve 1, flow guide device

[0030] ​4. The internal pipe 2, wherein the internal pipe 2 is internally provided with a flow guide cavity 21 and a water inlet cavity 22 which are sequentially communicated, and the end of the internal pipe 2 is further connected with a water outlet pipe 3 which is internally provided with a water outlet cavity 31 communicated with the water inlet cavity 22; wherein the flow guide device 4 fitted in the flow guide cavity 21 comprises a plurality of flow guide plates which are annularly arranged around the center line of the flow guide device 4

[0031] 41, and a flow guide passage 43 is arranged between every two flow guide plates 41, and a plurality of flow guide passages 43 are arranged in an inclined manner to generate spiral water flow; wherein the inner diameter of the water inlet cavity 22 gradually decreases along the direction close to the water outlet cavity 31, the inner diameter of the water outlet cavity 31 gradually increases along the direction away from the water inlet cavity 22, and the inclined angle of the inner diameter of the water inlet cavity 22 decreasing is greater than the inclined angle of the inner diameter of the water outlet cavity 31 increasing; the outer sleeve 1 is sleeved on the internal pipe 2 and surrounds the water outlet pipe 3, a gas filling cavity is formed between the outer sleeve 1 and the water outlet pipe 3, and the surface of the outer sleeve 1 is provided with a vent hole 11 communicated with the gas filling cavity, and the vent hole 11 is fitted with a first one-way valve 106 to prevent water from flowing out of the vent hole 11.

[0032] According to the micro-nano bubble water generating device 10 of the present application, the water flow enters the water inlet cavity 22 in an inclined manner through the flow guide passages 43 on the flow guide device 4, and the water flow improves the flow rate in a revolving manner along the inner wall of the water inlet cavity 22 and advances downstream, and is sprayed after being diffused in the water outlet cavity 31, so that the micro-nano bubbles derived from cavitation are effectively generated from the dissolved air in the water flow under the change of water flow pressure. Moreover, in order to increase the micro-nano bubbles, the outer sleeve 1 is sleeved on the internal pipe 2 and surrounds the water outlet pipe 3, a gas filling cavity is formed between the outer sleeve 1 and the water outlet pipe 3, and the surface of the outer sleeve 1 is provided with a vent hole 11 communicated with the gas filling cavity, a water inlet pipe 107 is connected with a second water pump 108 at the rear end, and water is pumped to form negative pressure in the gas filling cavity, air is sucked in through the vent hole 11 fitted with the first one-way valve 106, and the environment of the micro-nano bubbles generated in the diffusion section of the water outlet cavity is ensured to be stable.

[0033] As a further optimization scheme, a plurality of positioning grooves 211 are arranged on the inner wall of the flow guide cavity 21, and the outer side wall of the flow guide device 4 is provided with corresponding positioning protrusions 42, and the positioning protrusions 42 of the flow guide device 4 are fitted with the positioning grooves 211. Since the micro-nano bubble water generating device 10 needs to add high-pressure water flow during use, if the contact and cooperation between the flow guide device 4 and the inner wall of the flow guide cavity 21 is simply relied on, in an extreme case, the high-pressure water flow will drive the flow guide device 4 to rotate, which may seriously cause the flow guide device 4 to fall off from the flow guide cavity 21, so that in order to avoid the above situation, the cooperation between the positioning protrusions 42 and the positioning grooves 211 is adopted in the specific embodiment to resist the rotating force brought by the high-pressure water flow.

[0034] As a further optimization, the inner pipe 2 further comprises a transition cavity 23 for connecting the water inlet cavity 22 and the water outlet cavity 31, the inner diameter of the transition cavity 23 is the minimum value of the inner diameter of the water inlet cavity 22.

[0035] As a further optimization, the outer wall of the inner pipe 2 is provided with external threads 20, and the inner wall of the outer sleeve 1 is provided with internal threads 12, wherein the outer sleeve 1 is screwed with the inner threads 12 and part of the external threads 20 of the inner pipe 2. The pipe and the interface can be connected to the micro-nano bubble water generating device 10, such as the screw sleeve connected to the inner pipe 2, and then the other external threads 20 are connected to the internal threads 12 of the outer sleeve 1.

[0036] As a further optimization, the length of the water inlet cavity 22 is shorter than the length of the water outlet cavity 31.

[0037] As a further optimization, the surface of the flow guide plate 41 is provided with a plurality of convex points. Moreover, by forming convex points on the surface of the flow guide plate 41, the water flow is sprayed from the flow guide channel 43 while increasing the turbulence. In this embodiment, a plurality of convex points are provided, which increases the turbulence, so that the dissolved air in the water flow can be easily extracted, and the gas cavity bubbles can be more effectively generated.

[0038]

[0039]

[0040] In this specific embodiment, the micro-nano bubble water generating device 10 described above is applied to a hair washing machine 110, but it should be noted that this specific embodiment only describes the preferred embodiment of the present application and does not limit the scope of the present application. The micro-nano bubble water generating device 10 can also be applied to floor cleaning robots, dishwashers, washing machines and other fields.

[0041] Please refer to Figures 1-6 The present application also provides a cleaning device without cleaning liquid, which comprises a clean water tank 101, a first water pump 105, a second water pump 108, a hair washing machine 110, and the above-mentioned micro-nano bubble water generating device 10. The clean water tank 101 is connected to the water inlet cavity 22 of the inner pipe 2 through the first water pump 105 and the water supply pipe 104, and the end of the outer sleeve 1 near the water outlet cavity 31 is connected to the water inlet of the water outlet device 104 of the hair washing machine 110 through the second water pump 108.

[0042] The effect of generating micro-nano bubbles by the micro-nano bubble water generating device 10 described above is explained. The water flow supplied from the external water pipe first passes through the flow guide channel 43 of the flow guide device 4, and the water flow enters the water inlet cavity 22 in a spiral manner by the inclined flow guide channel 43.​​

[0043] Thus, the water flow through the flow guide channel 43 collides obliquely with the inner wall of the water inlet cavity 22, and thus advances to the transition cavity 23 while spirally revolving. Moreover, the water inlet cavity 22 is of a converging structure, and thus the speed increases as it approaches the transition cavity 23, and the water is sprayed from the transition cavity 23 to the water outlet cavity 31.

[0044] The water is sprayed from the transition cavity 23 at high pressure and diffused in the water outlet cavity 31. Thus, a rapid pressure drop is generated, and a large number of fine cavitation bubbles are generated in the water flow in the water outlet cavity 31 by the boiling phenomenon. At this time, if the diameter of the inlet side of the water inlet cavity 22 is greater than the diameter of the outlet side of the water outlet cavity 31, and the axial dimension of the water inlet cavity 22 is shorter than that of the water outlet cavity 31, the water flow is sprayed at high pressure due to the rapid reduction of the opening, and thus a large pressure difference is generated to effectively generate cavitation bubbles.

[0045] As a further optimization scheme, the unit time discharge of the second water pump 108 is greater than that of the first water pump 105, to further ensure that the charging cavity becomes a negative pressure state and further improve the air intake performance.

[0046] As a further optimization scheme, the output port of the first one-way valve 106 is arranged in the vent hole 11 in an inclined manner, mainly to ensure that the air intake angle is consistent with the water flow rotation direction.

[0047] As a further optimization scheme, the clean water tank 101 is communicated with the first water pump 105 through the water delivery pipe 104, and the water delivery pipe 104 is further connected with an air supplement assembly, wherein the air supplement assembly comprises an air supplement pipe 102 and a second one-way valve 103, one end of the air supplement pipe 102 extends to the outside of the clean water tank 101, and the other end is communicated with the input port of the water delivery pipe 104 through the second one-way valve 103. In particular, in order to increase the amount of micro-nano bubbles generated, in the specific embodiment, the air supplement pipe 102 is communicated with the water delivery pipe 104, and when the first water pump 105 extracts clean water in the clean water tank 101, it can also suck air from the outside through the air supplement pipe 102, so as to further increase the amount of gas entering the micro-nano bubble water generating device 10, to facilitate the generation of more micro-nano bubbles.

[0048] In addition, at the water outlet end of the micro-nano bubble water generating device 10, the second water pump 108 is connected to the water inlet pipe 107, and then the water outlet end of the second water pump 108 is connected to a drain pipe 109, which is connected to a corresponding cleaning device (in the specific embodiment, the cleaning device is a hair washing machine 110).

[0049] Since in the present embodiment, the back is the water inlet channel of the washing machine 110 or the sweeping and mopping robot, which acts on the scalp and hair of the person or the ground through complex pipes, it is difficult to achieve negative pressure suction caused by the difference in water flow speed alone when there is water pressure at the back, so a second water pump 108 with larger flow rate needs to be added to create a negative pressure environment in the back air chamber, so that the air inlet hole can inhale air, while ensuring the stability of the environment of the micro-nano bubbles generated in the diffusion section of the water outlet chamber of the present technical solution. At the same time, the main function of the air inlet hole at the back of the present patent is to balance the water pressure of the two water pumps naturally, to ensure the stability of the environment of the micro-nano bubbles generated in the diffusion section of the water outlet chamber of the present technical solution, and to improve the production rate of micro-nano bubbles,

[0050] Secondly, it can increase the content of micron or millimeter bubbles, which still has a certain cleaning effect on the water flow used in time.

[0051] The above embodiments only describe the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by ordinary engineering and technical personnel in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A cleaning device that requires no cleaning solution, characterized in that: It includes a clean water tank, a first water pump, a second water pump, a cleaning device, and a micro-nano bubble water generator; The micro-nano bubble water generator includes an outer sleeve, a flow guiding device, and an internal pipe. The internal pipe contains a flow guiding cavity and a water inlet cavity connected in sequence, and the end of the internal pipe is connected to a water outlet pipe, which contains a water outlet cavity connected to the water inlet cavity. The flow guiding device installed in the flow guiding cavity includes several flow guiding plates arranged around the center line of the flow guiding device, and a flow guiding channel is opened between every two flow guiding plates. The flow guiding channels are inclined to generate a spiral water flow. The clean water tank is connected to the water inlet cavity of the internal pipe through a first water pump, and the end of the outer sleeve near the water outlet cavity is connected to a second water pump. The second water pump is connected to the water inlet of the cleaning device. The inner diameter of the inlet chamber gradually decreases along the direction closer to the outlet chamber, while the inner diameter of the outlet chamber gradually increases along the direction away from the inlet chamber. The angle of inclination for the inner diameter of the inlet chamber to decrease is greater than the angle of inclination for the inner diameter of the outlet chamber to increase. The outer sleeve is fitted onto the inner pipe and surrounds the outlet pipe. An air-filled cavity is formed between the outer sleeve and the outlet pipe. A vent hole communicating with the air-filled cavity is opened on the surface of the outer sleeve. The vent hole is equipped with a first one-way valve. The second pump has a greater drainage capacity per unit time than the first pump.

2. The cleaning device that requires no cleaning solution according to claim 1, characterized in that: The output port of the first one-way valve is installed at an angle inside the vent.

3. The cleaning device that requires no cleaning solution according to claim 1, characterized in that: The clean water tank is connected to the first water pump via a water supply pipe, and the water supply pipe is also connected to an air supply component, which includes an air supply pipe and a second one-way valve. One end of the air supply pipe extends outside the clean water tank, and the other end is connected to the inlet of the water supply pipe via the second one-way valve.

4. The cleaning device that requires no cleaning solution according to claim 1, characterized in that: The inner wall of the flow guiding cavity is provided with several positioning grooves, and the outer wall of the flow guiding device is provided with corresponding positioning protrusions. The positioning protrusions of the flow guiding device are fitted with the positioning grooves.

5. A cleaning device that requires no cleaning solution according to claim 1, characterized in that: The internal pipe also includes a transition cavity for connecting the inlet cavity and the outlet cavity, the inner diameter of which is the minimum inner diameter of the inlet cavity.

6. A cleaning device that requires no cleaning solution according to claim 1, characterized in that: The outer wall of the internal pipe is provided with external threads, and the inner wall of the outer sleeve is provided with internal threads, wherein the outer sleeve is screwed to the external threads of the internal pipe through the internal threads.

7. A cleaning device that requires no cleaning solution according to claim 1, characterized in that: The surface of the guide plate is provided with several protrusions.

8. A cleaning device that requires no cleaning solution according to claim 1, characterized in that: The length of the inlet chamber is shorter than the length of the outlet chamber.

Images