CN112438677B - Water inlet, ventilation and overflow protection integrated structure and cleaning machine applying same - Google Patents

Abstract

The invention relates to a water inlet, ventilation and overflow protection integrated structure, which comprises a shell, wherein the shell is provided with a hollow first cavity, the side wall of the shell is provided with an opening communicated with the first cavity, and the structure is characterized in that: the micro-nano bubble generating device is arranged in the first cavity, and a water outlet of the micro-nano bubble generating device is communicated with the first cavity; the bottom wall of the first cavity is provided with an overflow port, the side part of the first cavity is provided with a ventilation channel which is communicated with the first cavity and extends vertically, and the upper part of the shell is provided with a ventilation port communicated with the ventilation channel. The invention integrates water inlet, ventilation and overflow protection, simplifies the whole structure, reduces the cost and is beneficial to effectively utilizing the assembly space; and the inlet water is a water source carrying micro-nano bubbles, the cavitation effect of the micro-nano bubbles in the water and the negative charge carried on the surface have the chemical effect of improving the interface activity, and the cleaning effect is favorably improved.

Description

Water inlet, ventilation and overflow protection integrated structure and cleaning machine applying same

Technical Field

The invention relates to the technical field of household washing appliances, in particular to a water inlet, ventilation and overflow protection integrated structure and a cleaning machine which is applied with the structure and can be used for cleaning tableware, vegetables or fruits.

Background

With the gradual maturity of micro-nano bubble cleaning technology, the application of the micro-nano bubble cleaning technology in the field of household appliances becomes wider.

In the field of industrial application, the nano-sized bubbles mean fine bubbles of 1000nm or less in a liquid, and further, bubbles of 1 to 100 μm are called fine bubbles, and bubbles of 100 μm or more are called normal bubbles. Compared with common bubbles, the micro-nano bubbles have the characteristics of long existence time, high surface energy, negative surface charge, high gas-liquid mass transfer rate and spontaneous generation of free radicals in water, so that the micro-nano bubbles have the functions of oxygenation, sterilization, disinfection, washing, decontamination, water purification, organic matter degradation and the like. Due to the functions of the micro-nano bubbles, the micro-nano bubbles have a wide market prospect in the fields of washing and health, such as washing, decontamination and descaling, skin cleaning, drinking water oxygenation, vegetable and fruit cleaning, tooth descaling and the like.

At present, there are four main methods for generating micro-nano bubbles: ultrasonic cavitation, hydrodynamic cavitation, optical cavitation and particle cavitation, wherein hydrodynamic cavitation equipment is simple in requirement and is a common method for generating micro-nano bubbles. For example, similar structures are disclosed in the Chinese patent application with application publication number CN104803467A, namely a micro-nano ozone bubble device (application number CN 201510199198.5), the Chinese patent application with application publication number CN108842384A, namely a micro-nano aeration-based washing machine filter device (application number CN 201810907234.2) and the like. Above-mentioned current micro-nano bubble generating device adopts the air pump to provide the power supply most and sneaks into the air, and the air carries out intensive mixing with water and dissolves the back, and release pressure is in order to obtain the higher micro-nano bubble of concentration again, and the realization structure of this mode is relatively more complicated, with high costs, and need rely on the circuit to control, and the reliability is relatively poor.

To basin formula cleaning machine, because the apron on the basin body needs airtight to prevent the water spill that sprays, and basin body internal heating can produce steam, if not dredging, must make the basin body form a high pressure state, influence safety. Therefore, the air in the sink body needs to be guided out of the sink body, but the existing ventilation device can exhaust hot and humid air into the cabinet, which causes the cabinet to be wet, moldy and damaged.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a water inlet, ventilation and overflow protection integrated structure beneficial to discharging hot and wet gas, and the structure can enable inlet water to carry micro-nano bubbles so as to improve the cleaning effect.

The second technical problem to be solved by the invention is to provide an integrated structure for water inlet, ventilation and overflow protection, which can passively generate micro-nano bubbles, thereby simplifying the equipment structure, reducing the cost and improving the reliability.

The third technical problem to be solved by the present invention is to provide a cleaning machine with the above-mentioned integrated water inlet, air permeable and overflow protection structure, aiming at the current situation of the prior art, and the cleaning machine can effectively improve the cleaning effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a structure integrative is protected in intaking, ventilative, overflow, includes the casing, and this casing has hollow first cavity, it has the opening that is linked together with first cavity to open on the casing lateral wall, its characterized in that: the micro-nano bubble generating device is arranged in the first cavity, and a water outlet of the micro-nano bubble generating device is communicated with the first cavity; the overflow port is formed in the bottom wall of the first cavity, the ventilation channel which is communicated with the first cavity and extends vertically is arranged on the side portion of the first cavity, and the ventilation port which is communicated with the ventilation channel is formed in the upper portion of the shell.

In the above scheme, the whole body formed by the first cavity and the ventilation channel is in an L-shaped structure, the vertical part of the L-shaped structure is the ventilation channel, the horizontal part of the L-shaped structure is the first cavity, and the overflow gap is located at the corner of the L-shaped structure or at the end of the horizontal part. By adopting the design, the inner side of the corner of the L-shaped structure can be just used for combining the micro-nano bubble generating device, so that the micro-nano bubble generating device is conveniently communicated with the first cavity, the assembly space can be effectively saved, the installation space is fully utilized, and the production is convenient.

Preferably, when the overflow port is located at a corner of the L-shaped structure, a first baffle located between the overflow port and the main body of the first chamber is disposed on the inner bottom wall of the first chamber.

Preferably, the inner top wall of the first cavity rises upwards at the position corresponding to the second baffle to form a first emptying area capable of emptying residual air in the first cavity in an overflowing state. The structure is convenient for removing residual air in the flow channel, thereby improving the front-back pressure difference of the overflow end and improving the overflow flow.

Preferably, when the overflow is located at an end portion of a lateral portion of the L-shaped structure, the inner bottom wall of the first cavity is gradually inclined upward from the middle toward the outside near the overflow to form a first inclined portion, and the overflow is located at an outer end of the first inclined portion.

Preferably, the outer end of the first inclined part is provided with a horizontal part extending horizontally outwards, the overflow port is arranged on the horizontal part, and a second baffle plate arranged vertically is arranged at the joint of the outer end of the first inclined part and the horizontal part.

Preferably, the inner top wall of the first cavity is lifted upwards at the end corresponding to the first inclined portion to form a second empty area capable of emptying residual air in the first cavity in an overflow state, the outer end of the second empty area vertically corresponds to the overflow port, and the inner end of the second empty area is at least arranged corresponding to the inner edge of the outer end of the first inclined portion. The structure is convenient for removing residual air in the flow channel, thereby improving the front-back pressure difference of the overflow end and improving the overflow flow.

Preferably, the bottom wall in the first cavity is inclined gradually upwards from the middle to the outside near the ventilation channel to form a second inclined part. The water tank type cleaning machine has the advantages that the water tank type cleaning machine needs heating in the cleaning process, the pressure difference between the front and the back is large, and the ventilation port is arranged to balance the internal and external air pressures.

In each of the above schemes, the micro-nano bubble generating device is disposed above the first cavity of the housing, the micro-nano bubble generating device has a hollow second cavity and a first water inlet for water to flow into the second cavity, a hole which is communicated with the first cavity is formed in the bottom wall of the second cavity, and the hole is a tapered hole with a small upper end and a large lower end.

Preferably, the upper port of the hole is located on the inner bottom wall of the first cavity, and the diameter of the upper port is 1-1.5 mm. The length of the hole in the axial direction is 15-40mm, the diameter of the lower port of the hole is 3-8mm, and the upper port of the hole is set to be 1-1.5 mm, so that the upper port of the hole can be blocked after water flow enters the second cavity initially, high pressure is formed in the second cavity along with the water flow, and the water flow entering the second cavity is prevented from flowing away in the water flow conveying process; the length of the hole and the diameter of the lower port are limited so as to improve the forming effect of the micro-nano bubbles.

In each scheme, the micro-nano bubble generating device is provided with a first air inlet, and a one-way valve which can allow air to enter the second cavity from the outside when the pressure difference between the inside and the outside of the second cavity reaches a set value is arranged on the first air inlet. The one-way valve is arranged so that after the micro-nano bubble water is produced for one time, the second cavity recovers the original pressure, and an air source is prepared for the next micro-nano bubble water production.

Preferably, the first air inlet is formed in the top wall of the micro-nano bubble generating device, and the one-way valve is constrained on the shell and covers the first air inlet. The first air inlet and the one-way valve are arranged at the top of the micro-nano bubble generating device so as to avoid interference with a water inlet area.

Preferably, the check valve includes a gland and a sealing gasket, the gland is constrained at the first air inlet of the housing, the bottom of the gland is provided with a containing cavity communicated with the first air inlet, the sealing gasket is arranged in the containing cavity in a vertically movable manner, the top wall of the gland is provided with a second air inlet communicated with the containing cavity for external air, the sealing gasket moves upwards to seal the second air inlet, and the sealing gasket moves downwards to open the second air inlet.

Preferably, the sealing gasket is provided with a sealing part and a guide part, the inner diameter of the sealing part is gradually reduced from top to bottom, the upper end face of the sealing part is a sealing plane which can be pressed at the lower end of the second air inlet to seal the second air inlet, the lower end face of the guide part can be a supporting plane which is abutted against the outer edge of the first air inlet, and the supporting plane is provided with a guide groove which extends along the radial direction and allows air in the accommodating cavity to pass through the first air inlet and enter the second cavity.

Preferably, the upper edge of the sealing part to the upper edge of the guide part are shrunk in the radial direction to form a circular table surface. This structure is favorable to improving the sealed effect of sealed plane to the second air inlet.

Preferably, the middle part of the lower end surface of the guide part is provided with a plug-in post which extends downwards and can be inserted into the first air inlet, and a gap is formed between the outer wall of the plug-in post and the inner wall of the first air inlet when the plug-in post is inserted into the first air inlet. The insertion column is in a round table-shaped structure with a large upper end and a small lower end. The structure is beneficial to avoiding the sealing gasket from deviating in the accommodating cavity or influencing the normal floating up and down.

In order to facilitate adjustment of the set pressure of the check valve, a structure may be adopted in which: the accommodating cavity is internally provided with an air guide channel which extends downwards along the edge of the second air inlet, the periphery of the air guide channel is sleeved with an elastic piece, the upper end of the elastic piece is propped against the inner top wall of the accommodating cavity, and the lower end of the elastic piece is propped against the upper end face of the sealing gasket.

In order to facilitate installation and improve the sealing performance, the top of the shell is locally recessed at the outer edge surrounding the first air inlet to form a containing groove for installing the gland, and a sealing ring arranged around the outer edge of the first air inlet is arranged between the lower end face of the gland and the bottom wall of the containing groove.

Preferably, the first water inlet is arranged on the bottom wall of the second cavity and is directly communicated with the bottom of the first cavity. This configuration is advantageous for enhancing the turbulence effect generated in the second cavity.

As an improvement, a third baffle plate capable of dividing the second cavity into a first space and a second space which are arranged up and down is arranged in the second cavity, the end parts of the first space and the second space are communicated with each other, and the first water inlet is communicated with the first space and can supply the entering water to fall onto the upper surface of the third baffle plate. This structure can make rivers fall after promoting and strike the third baffle on the third baffle, is favorable to the air and the water intensive mixing in first space, improves the solubility of air in aqueous.

Preferably, the first water inlet is formed in the bottom wall of the micro-nano bubble generating device, a water flow conveying channel extending from bottom to top to the top of the second cavity is arranged in the second cavity, and a water outlet end of the water flow conveying channel faces downwards and is arranged corresponding to the upper surface of the third baffle. The water flow is output from the water outlet end of the water flow conveying channel and then impacts the third baffle plate, so that the water flow and the air are fully mixed in the first space.

Further preferably, the water flow delivery channel is shaped as an inverted U-shaped structure, and a first vertical part of the U-shaped structure, which has a water outlet end, is shorter than a half of a second vertical part. Still further, the length of the first vertical part with the water outlet end on the U-shaped structure is one fifth to one eighth of the length of the second vertical part. This structure is favorable to improving rivers potential energy, and the impact degree of increase rivers to the third baffle further improves the mixability of rivers and air.

The utility model provides an use cleaning machine that has above-mentioned water inflow, ventilative, integrative structure of overflow protection, includes the box that has the washing chamber, seted up the second water inlet on the lateral wall of box, its characterized in that: the water inlet, ventilation and overflow protection integrated structure is arranged on the side wall of the box body, and the opening is communicated with the second water inlet of the box body.

Compared with the prior art, the invention has the advantages that: the invention integrates water inlet, ventilation and overflow protection, simplifies the whole structure, reduces the cost and is beneficial to effectively utilizing the assembly space; and the inlet water is a water source carrying micro-nano bubbles, the cavitation effect of the micro-nano bubbles in the water and the negative charge carried on the surface have the chemical effect of improving the interface activity, and the cleaning effect is favorably improved.

Drawings

Fig. 1 is a schematic structural view of an integrated water inlet, air permeability and overflow protection structure in embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is an enlarged schematic view of portion B of FIG. 2;

FIG. 5 is a schematic view of the gasket of FIG. 4;

FIG. 6 is a schematic view showing an assembling structure of a check valve and a housing in embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of a cleaning machine in embodiment 1 of the present invention;

fig. 8 is a schematic structural diagram of a micro-nano bubble generating device in embodiment 3 of the present invention;

FIG. 9 is a cross-sectional view of FIG. 8;

fig. 10 is another sectional view of fig. 8.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1:

as shown in fig. 1 to 5, the integrated water inlet, air permeability and overflow protection structure of this embodiment includes a housing 1 and a micro-nano bubble generating device a, the housing 1 has a hollow first cavity 15, an opening 17 communicated with the first cavity 15 is formed on a side wall of the housing 1, and the micro-nano bubble generating device a and the housing 1 are integrally formed. The water outlet of the micro-nano bubble generating device a is communicated with the first cavity 15; the bottom wall of the first cavity 15 is provided with an overflow port 16, the side part of the first cavity 15 is provided with an air passage 155 which is communicated with the first cavity 15 and extends vertically, and the upper part of the shell 1 is provided with an air port 18 which is communicated with the air passage 155.

The whole body formed by the first cavity 15 and the air-permeable passage 18 of the present embodiment is an L-shaped structure 100, the vertical part of the L-shaped structure 100 is the air-permeable passage 155, the horizontal part of the L-shaped structure 100 is the first cavity 15, and the overflow opening 16 is located at the end of the horizontal part of the L-shaped structure 100. By adopting the design, the inner side of the corner of the L-shaped structure 100 can be just used for combining the micro-nano bubble generating device a, so that the micro-nano bubble generating device a and the first cavity 15 are integrated into a whole, the assembling space can be effectively saved, the mounting space is fully utilized, and the production is convenient.

In particular, the upper part of the casing 1 has a second hollow cavity 11 in a region corresponding to the inside of the corner of the L-shaped structure 100. The side wall of the casing 1 is provided with a first water inlet 111 for water flow to enter the second cavity 11, the bottom wall of the second cavity 11 is provided with a hole 12 which is communicated with the second cavity 11 and the first cavity by penetrating up and down, and the hole 12 is a conical hole with a small upper end and a large lower end. The last port in hole 12 is located the interior diapire of second cavity 11, and this last port diameter is 1 ~ 1.5mm, sets up the last port in hole to 1 ~ 1.5mm, is for in rivers preliminary get into second cavity 11 after, can block up the last port in hole 12 to along with rivers entering and pressure rise in making second cavity 11, avoid the rivers that get into in the second cavity 11 to flow away in rivers transportation process. The axial length of the hole 12 is 15-40mm, and the diameter of the lower port of the hole 12 is 3-8mm, so that negative pressure is rapidly generated in the process of flushing the hole 12 by water flow, and the forming effect of micro-nano bubbles is improved.

In this embodiment, the holes 12 are multiple and spaced apart from each other on the bottom wall of the second cavity 11, and the first water inlet 111 is also opened on the bottom wall of the second cavity 11 and has an outlet end directly communicated with the first cavity 15. The hole 12 is formed in the bottom wall of the second cavity 11 to block the small hole after water flow enters, so that the second cavity 11 forms a closed cavity; set up first water inlet 111 in 11 bottoms of second cavity, not only be favorable to rivers to plug up hole 12 fast after getting into in the second cavity 11, can also form turbulent action in second cavity 11 at rivers input process, be favorable to making the air dissolve in aqueous fast.

In this embodiment, the housing 1 is provided with a first air inlet 13, and the first air inlet 13 is provided with a check valve 2 which can allow air to enter the second cavity 11 from the outside when the pressure difference between the inside and the outside of the second cavity 11 reaches a set value. Set up this check valve 2 to in the little nano bubble water production back that finishes of once, make second cavity 11 resume original pressure, prepare the air source for the production of little nano bubble water next time. The first air inlet 13 is arranged on the top wall of the shell 1, and the one-way valve 2 is restrained on the shell 1 and covers the first air inlet 13. The first air inlet 13 and the check valve 2 are disposed on the top wall of the housing 1 to avoid interference with the water inlet area.

The check valve 2 of this embodiment includes the gland 21 and the sealing gasket 22, the gland 21 restricts in the first air inlet 13 department of casing 1 and the bottom is seted up the holding chamber 211 that is linked together with first air inlet 13, the sealing gasket 22 can be located in this holding chamber 211 with reciprocating, open the second air inlet 212 that supplies outside air and holding chamber 211 to be linked together on the roof of gland 21, the sealing gasket 22 moves upward and seals the second air inlet 13, the sealing gasket 22 moves down and opens the second air inlet 13. The sealing gasket 22 has a sealing portion 221 and a guiding portion 222 with inner diameters gradually decreasing from top to bottom, an upper end surface of the sealing portion 221 is a sealing plane capable of being pressed against a lower end of the second inlet 212 to seal the second inlet, a lower end surface of the guiding portion 222 is a supporting plane capable of being abutted against an outer edge of the first inlet 13, and the supporting plane is provided with a guiding groove 2221 extending in a radial direction so that gas in the accommodating cavity 211 can pass through the first inlet 13 and enter the second cavity 11. The upper edge of the sealing portion 221 to the upper edge of the guiding portion are shrunk in the radial direction to form a circular table 2211, which is beneficial to improve the sealing effect of the sealing plane on the second air inlet 212. The middle portion of the lower end surface of the guide portion 222 is provided with a plug column 223 extending downward and capable of being inserted into the first air inlet 13, and in a state where the plug column 223 is inserted into the first air inlet 13, a gap is provided between an outer wall of the plug column 223 and an inner wall of the first air inlet 13. The insertion column 223 is formed as a truncated cone-shaped structure with a large upper end and a small lower end, which is beneficial to preventing the sealing gasket 22 from deviating in the accommodating cavity 211 or influencing the normal floating up and down.

In order to facilitate installation and improve sealing performance, the top of the housing 1 is partially recessed at the outer edge around the first air inlet 13 to form an accommodating groove 14 for installing a gland 21, the gland 21 is fixed in the accommodating groove 14 by screws, and a sealing ring 23 arranged around the outer edge of the first air inlet 13 is arranged between the lower end surface of the gland 21 and the bottom wall of the accommodating groove 14.

As shown in fig. 7, the cleaning machine of this embodiment includes a tank 3 and an integrated water inlet, air permeable and overflow protection structure, the tank 3 is hollow to form a washing chamber, a second water inlet 31 is disposed on a side wall of the tank 3, the integrated water inlet, air permeable and overflow protection structure is disposed on an outer side wall of the tank 3, and an opening 17 of the integrated water inlet, air permeable and overflow protection structure is communicated with the second water inlet 31 of the tank 3.

The first chamber 15 of the present embodiment has a first inclined portion 151 formed at a bottom wall near the first side and gradually inclined upward from the middle, and an overflow opening 16 is opened at an outer end of the first inclined portion 151. The outer end of the first inclined portion 151 is provided with a horizontal portion 152 extending horizontally outwards, the overflow opening 16 is arranged on the horizontal portion 152, a second baffle 153 arranged vertically is arranged at the joint of the outer end of the first inclined portion 151 and the horizontal portion 152, and the upper edge of the second baffle 153 is not higher than the inner bottom wall edge of the second cavity 11. The inner top wall of the first chamber 15 is upwardly raised at the end corresponding to the first inclined portion 151 to form a second empty space 150 capable of emptying the residual air in the first chamber 15 in an overflow state, and the outer end of the second empty space 150 is vertically corresponding to the overflow opening 16, and the inner end of the second empty space 150 is disposed corresponding to the middle of the first inclined portion 151. The structure is convenient for removing residual air in the flow channel, thereby improving the front-back pressure difference of the overflow end and improving the overflow flow. The inner bottom wall of the first cavity 15 is gradually inclined upwards from the middle to the outside near the second side to form a second inclined part 154, the second side of the first cavity 15 is provided with an air vent channel 155 extending upwards from the outer end of the second inclined part 154, and the upper part of the shell 1 is provided with an air vent 18 communicated with the air vent channel 155. Because the water tank type cleaning machine needs heating in the cleaning process, the front-back pressure difference is large, and the air vent 18 is arranged to balance the internal air pressure and the external air pressure. The embodiment combines the micro-nano generating device with the overflow structure and the ventilation structure, and is favorable for simplifying the whole structure of the cleaning machine, saving the cost and facilitating the control and use.

The first water inlet 111 is connected with a water inlet channel 19, the water inlet channel 19 passes through the first cavity 15 from bottom to top and is vertically arranged, and the structure vertically conveys water flow and is beneficial to enhancing the turbulent flow effect generated in the second cavity 11. The water inlet channel 19 is provided with a vortex component and a water flow sensor which can detect the water inlet amount.

When the micro-nano bubble generating device of the embodiment is used, water flow enters the second cavity 11 through the first water inlet 111, and the upper port of the hole 12 is extremely small, so that water entering the second cavity 11 can rapidly block the hole 12 due to the action of gravity, and in the process of continuously inputting the water flow into the second cavity 11, air in the second cavity 11 is dissipated everywhere, so that the pressure in the second cavity 11 is rapidly increased, the solubility of the air in water is further improved, the air is rapidly dissolved in the water along with the turbulent flow effect generated by water flow input, and when the pressure in the second cavity 11 reaches a critical value capable of being borne by the upper port of the tapered hole 12, the water flow with a large amount of dissolved air is rapidly released outwards from the tapered hole 12, and negative pressure is generated in the process of passing through the tapered hole 12, so that micro-nano bubble water is formed; because the air in the second cavity 11 is dissolved in water and discharged together with the water, the second cavity 11 generates a pressure difference with the outside along with the decrease of the liquid level in the second cavity 11, when the critical value set by the one-way valve 2 is reached, the sealing gasket 22 moves downwards until the lower end surface of the guide part 222 on the sealing gasket 22 abuts against the first air inlet 13, the second air inlet 212 is opened, and at the moment, the air enters the second cavity 11 through the second air inlet 212, the accommodating cavity 211, the guide groove 2221 and the first air inlet 13 to supplement an air source for the second cavity 11; when water is introduced into the second chamber 11 again, the gasket 22 floats up to close the second air inlet 212 as the pressure in the second chamber 11 increases.

Example 2:

this example differs from example 1 only in that: as shown in fig. 6, the structure of the check valve 2 is different. In order to adjust the set pressure of the check valve 2, the receiving cavity 211 of this embodiment has an air guide channel 213 extending downward along the edge of the second air inlet 212, an elastic member 24 is sleeved on the outer periphery of the air guide channel 213, the elastic member 24 is a spring, the upper end of the elastic member 24 abuts against the inner top wall of the receiving cavity 211, and the lower end of the elastic member 24 abuts against the upper end surface of the sealing pad 22.

Example 3:

this example differs from example 1 in that: weirs 16 'are located at the corners of the L-shaped structure 100'.

Specifically, as shown in fig. 8 to 10, a third baffle plate 10' capable of dividing the second chamber 11' into a first space 11a ' and a second space 11b ' arranged up and down is disposed in the second chamber 11', two end portions of the first space 11a ' and the second space 11b ' are communicated with each other, and a first water inlet 111' through which water flows into the first space 11a ' and falls onto the third baffle plate 10' is formed on a side wall of the housing 1'.

The first water inlet 111' is opened on the bottom wall of the housing 1', a water flow conveying channel 110' extending from bottom to top to the top of the second cavity 11' is arranged in the second cavity 11', and the water outlet end of the water flow conveying channel 110' is arranged downward corresponding to the upper surface of the third baffle 10 '. The water flow after being discharged from the water outlet end of the water flow conveying channel 110' hits the third baffle 10', which is favorable for the water flow and the air to be mixed well in the first space 11a '. The water flow conveying channel 110 'is shaped into an inverted U-shaped structure, the first vertical part 1101' of the U-shaped structure with the water outlet end 1100 'is shorter than the second vertical part 1102', and the length of the first vertical part 1101 'of the U-shaped structure with the water outlet end 1100' is one fifth to one eighth of the length of the second vertical part 1102', so that the structure is beneficial to improving the water flow potential energy, increasing the impact degree of the water flow on the third baffle plate 10', and further improving the mixing degree of the water flow and the air. In order to facilitate water inlet, a water inlet channel 19 'which is vertically arranged is connected to the first water inlet 111'.

The inner bottom wall of the first chamber 15' is provided with a deflector 156' near the lower port of the hole 12' for guiding the water from the outlet of the hole 12' to the third water inlet 17 '. The structure reduces the distance between the lower end of the hole 12 'and the inner bottom wall of the first cavity 15', shortens the conveying process of the micro-nano bubble water, and is beneficial to improving the production efficiency and the using effect of the micro-nano bubble water.

The other side of the inner bottom wall of the first chamber 15' is lower than the guide plate 156' and is opened with an overflow port 16' disposed near the end, and the inner bottom wall of the first chamber 15' is provided with a first baffle 153' between the overflow port 16' and the first chamber 15 '. The inner top wall of the first cavity 15 'is lifted upwards at the position corresponding to the second baffle 153' to form an emptying zone 150 'capable of emptying residual air in the first cavity 15' in an overflow state, and the structure is convenient for removing residual air in the flow channel, so that the front-back pressure difference of an overflow end is improved, and the overflow flow rate is improved.

When the micro-nano bubble generating device of the embodiment is used, water flow enters the first space 11a 'of the second cavity 11' through the first water inlet 111 'and strikes the third baffle 10', so that air and water in the first space can be fully mixed, the water flow flows to the second space 11b 'from the end part of the third baffle 10', then the upper port of the hole 12 'is blocked, and other processes are the same as those in embodiment 1'.

Claims (25)

1. The utility model provides an integrative structure of intake, ventilative, overflow protection, includes casing (1), and this casing (1) has hollow first cavity (15), it has opening (17) that are linked together with first cavity (15) to open on casing (1) lateral wall, its characterized in that: the micro-nano bubble generating device (a) is also included, and a water outlet of the micro-nano bubble generating device (a) is communicated with the first cavity (15); an overflow port (16) is formed in the bottom wall of the first cavity (15), an air-permeable channel (155) which is communicated with the first cavity (15) and extends vertically is arranged on the side of the first cavity (15), and an air-permeable port (18) communicated with the air-permeable channel (155) is formed in the upper portion of the shell (1);

micro-nano bubble generating device (a) is located first cavity (15) top of casing, micro-nano bubble generating device (a) has hollow second cavity (11) and supplies water flow first water inlet (111) in getting into second cavity (11), thereby it link up hole (12) that are linked together second cavity (11) and first cavity to link up from top to bottom to seted up on the diapire of second cavity (11), and this hole (12) take shape to the bell mouth that the upper end is little, the lower extreme is big.

2. The integrated structure of water intake, ventilation and overflow protection as claimed in claim 1, wherein: the first cavity (15, 15 ') and the air-permeable channel (155) form an L-shaped structure (100, 100 '), the vertical part of the L-shaped structure (100, 100 ') is the air-permeable channel (155), the transverse part of the L-shaped structure (100, 100 ') is the first cavity (15, 15 '), and the overflow opening (16, 16 ') is positioned at the corner of the L-shaped structure (100, 100 ') or at the end of the transverse part.

3. The integrated structure of water intake, ventilation and overflow protection as claimed in claim 2, wherein: when the overflow (16 ') is positioned at the corner of the L-shaped structure (100'), a first baffle (153 ') is arranged on the inner bottom wall of the first cavity (15') and positioned between the overflow (16 ') and the main body of the first cavity (15').

4. The integrated structure of water inlet, ventilation and overflow protection as claimed in claim 3, wherein: the inner top wall of the first chamber (15 ') is raised upward at the corresponding first baffle (153') to form a first emptying zone (150 ') capable of emptying residual air in the first chamber (15') in an overflow state.

5. The integrated structure of water inlet, ventilation and overflow protection as claimed in claim 2, wherein: when the overflow opening (16) is positioned at the end of the transverse portion of the L-shaped structure (100), the inner bottom wall of the first cavity (15) is gradually inclined upward from the middle to the outside near the overflow opening (16) to form a first inclined portion (151), and the overflow opening (16) is positioned at the outer end of the first inclined portion (151).

6. The integrated structure of water inlet, ventilation and overflow protection as claimed in claim 5, wherein: the outer end of the first inclined part (151) is provided with a horizontal part (152) extending outwards horizontally, the overflow gap (16) is arranged on the horizontal part (152), and a second baffle (153) arranged vertically is arranged at the joint of the outer end of the first inclined part (151) and the horizontal part (152).

7. The integrated structure of water intake, ventilation and overflow protection as claimed in claim 6, wherein: the inner top wall of the first cavity (15) is lifted upwards at the tail end corresponding to the first inclined part (151) to form a second emptying area (150) capable of emptying residual air in the first cavity (15) in an overflow state, the outer end of the second emptying area (150) is vertically corresponding to the overflow port (16), and the inner end of the second emptying area (150) is at least arranged corresponding to the inner edge of the outer end of the first inclined part (151).

8. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 7, wherein: the inner bottom wall of the first cavity (15) is gradually inclined upwards from the middle to the outside near the ventilation channel to form a second inclined part (154).

9. The integrated structure of water inlet, ventilation and overflow protection as claimed in any one of claims 1 to 8, wherein: the upper port of the hole (12) is located on the inner bottom wall of the micro-nano bubble generating device (a), and the diameter of the upper port is 1-1.5 mm.

10. The integrated structure of water intake, ventilation and overflow protection as claimed in claim 9, wherein: the length of the hole (12) in the axial direction is 15-40mm, and the diameter of a lower port of the hole is 3-8 mm.

11. The integrated structure of water inlet, ventilation and overflow protection as claimed in any one of claims 1 to 8, wherein: a first air inlet (13) is formed in the micro-nano bubble generating device (a), and a check valve (2) capable of allowing air to enter the second cavity (11) from the outside when the pressure difference between the inside and the outside of the second cavity (11) reaches a set value state is arranged on the first air inlet (13).

12. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 11, wherein: the first air inlet (13) is formed in the top wall of the micro-nano bubble generating device (a), and the one-way valve (2) is constrained on the shell (1) and covers the first air inlet (13).

13. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 11, wherein: check valve (2) including gland (21) and sealed pad (22), gland (21) retrain in first air inlet (13) department and the bottom of casing (1) set up holding chamber (211) that is linked together with first air inlet (13), sealed pad (22) can be located this holding chamber (211) with reciprocating, open second air inlet (212) that supply outside air and holding chamber (211) to be linked together on the roof of gland (21), sealed pad (22) rebound seals second air inlet (212), sealed pad (22) rebound opens second air inlet (212).

14. The integrated water inlet, air permeability and overflow protection structure as claimed in claim 13, wherein: the sealing gasket (22) is provided with a sealing part (221) and a guide part (222), the inner diameter of the sealing part is gradually reduced from top to bottom, the upper end face of the sealing part (221) is a sealing plane which can be pressed at the lower end of the second air inlet (212) to seal the second air inlet, the lower end face of the guide part (222) can be a supporting plane which is abutted against the outer edge of the first air inlet (13), and the supporting plane is provided with a guide groove (2221) which extends along the radial direction to allow air in the accommodating cavity (211) to pass through the first air inlet (13) and enter the second cavity (11).

15. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 14, wherein: the upper edge of the sealing part (221) to the upper edge of the guide part (222) is contracted along the radial direction to form a circular table surface (2211).

16. The integrated structure of water inflow, ventilation and overflow protection as claimed in claim 14, wherein: the middle part of the lower end face of the guide part (222) is provided with a plug column (223) which extends downwards and can be inserted into the first air inlet (13), and a gap is reserved between the outer wall of the plug column (223) and the inner wall of the first air inlet (13) when the plug column (223) is inserted into the first air inlet (13).

17. The integrated water inlet, air permeability and overflow protection structure as claimed in claim 16, wherein: the insertion column (223) is in a round table-shaped structure with a large upper end and a small lower end.

18. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 13, wherein: the air guide channel (213) extending downwards along the edge of the second air inlet (212) is arranged in the accommodating cavity (211), an elastic piece (24) is sleeved on the periphery of the air guide channel (213), the upper end of the elastic piece (24) is abutted against the inner top wall of the accommodating cavity (211), and the lower end of the elastic piece (24) is abutted against the upper end face of the sealing gasket (22).

19. The integrated water inlet, air permeability and overflow protection structure as claimed in claim 13, wherein: the top of the micro-nano bubble generating device (a) is partially recessed around the outer edge of the first air inlet (13) to form a containing groove (14) for installing the gland (21), and a sealing ring (23) arranged around the outer edge of the first air inlet (13) is arranged between the lower end face of the gland (21) and the bottom wall of the containing groove (14).

20. The integrated structure of water inlet, ventilation and overflow protection as claimed in any one of claims 1 to 8, wherein: the first water inlet (111) is arranged on the bottom wall of the second cavity (11) and is directly communicated with the bottom of the first cavity (15).

21. The integrated structure of water inlet, ventilation and overflow protection as claimed in any one of claims 1 to 8, wherein: the second cavity (11) is internally provided with a third baffle (10 ') which can divide the second cavity into a first space (11 a ') and a second space (11 b ') which are vertically arranged, the end parts of the first space (11 a ') and the second space (11 b ') are mutually communicated, and the first water inlet (111) is communicated with the first space (11 a ') and can be used for allowing the entering water to fall onto the upper surface of the third baffle (10 ').

22. The integrated structure of water intake, air permeation and water overflow protection as claimed in claim 21, wherein: the first water inlet (111) is formed in the bottom wall of the micro-nano bubble generating device (a), a water flow conveying channel (110) extending to the top of the second cavity (11) from bottom to top is arranged in the second cavity (11), and a water outlet end (1100) of the water flow conveying channel (110) faces downwards and is arranged corresponding to the upper surface of the third baffle (10').

23. The integrated water inlet, air permeable and water overflow protection structure of claim 22, wherein: the water flow delivery channel (110) is shaped as an inverted U-shaped structure, and the first vertical part (1101) of the U-shaped structure with the water outlet end (1100) is shorter than one half of the second vertical part (1102).

24. The integrated water inlet, air permeability and overflow protection structure as claimed in claim 21, wherein: the first vertical portion (1101) of the illustrated U-shaped structure having a water outlet end (1100) is one fifth to one eighth the length of the second vertical portion (1102).

25. A cleaning machine with an integrated water inlet, ventilation and overflow protection structure as claimed in any one of claims 1 to 24, comprising a tank (3) having a washing chamber, wherein a second water inlet (31) is provided on a side wall of the tank (3), and the cleaning machine is characterized in that: the water inlet, ventilation and overflow protection integrated structure is arranged on the side wall of the box body (3), and the opening (17) is communicated with a second water inlet (31) of the box body (3).

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