CN211368090U - Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle - Google Patents

Abstract

The utility model relates to a microbubble shower nozzle and have washing equipment of this microbubble shower nozzle. The microbubble nozzle comprises an integrated spray pipe and a bubbler. The integrated spout includes a channel formed therein; a throttling hole is arranged in the channel along the water flow direction; an air passage is also formed on the integrated nozzle, and the air passage is positioned close to the throttling hole so as to form negative pressure near an outlet of the air passage when water flows through the throttling hole, and therefore outside air is sucked into the integrated nozzle to be mixed with water to generate bubble water; the bubbler is fixed on the outlet end of the integrated nozzle and has a mesh structure configured to be cut and mixed while the bubble water flows therethrough, thereby generating micro-bubble water containing a large amount of micro-bubbles. Compare in prior art's microbubble generator, the utility model discloses the part quantity and the structure of microbubble shower nozzle are all simplified greatly to the manufacturing cost of microbubble shower nozzle also reduces by a wide margin, and the microbubble shower nozzle still keeps good performance of producing the microbubble simultaneously.

Description

Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle

Technical Field

The utility model relates to a microbubble produces the device, specifically relates to microbubble shower nozzle and have the washing equipment of this microbubble shower nozzle.

Background

Micro-bubbles (micro-bubbles) generally refer to micro-bubbles having a diameter of fifty micrometers (μm) or less when the bubbles occur. Micro-bubbles may also be referred to as micro-/nano-bubbles, micro-bubbles or nano-bubbles depending on their diameter range. Microbubbles have a relatively long residence time in a liquid because of their small buoyancy in the liquid. Moreover, the microbubbles will shrink in the liquid until finally breaking, generating smaller nanobubbles. When the microbubbles are broken, high pressure and high temperature heat are locally generated, and thus foreign substances such as organic substances floating in the liquid or adhering to the object can be destroyed. In addition, the microbubbles have negative charges, and easily adsorb positively charged foreign substances floating in the liquid. Therefore, the foreign matter is adsorbed by the microbubbles after it is destroyed by the breaking of the microbubbles, and then slowly floats to the liquid surface. These properties provide the microbubbles with a strong cleaning and purifying power. At present, microbubbles have been widely used in washing apparatuses such as washing machines.

To manufacture microbubbles, microbubble generation devices of different structures have been developed. For example, chinese patent application (CN107321204A) discloses a microbubble generator. This microbubble generator includes that both ends are the shell of opening form, and the first end of shell is connected with the inlet tube, has set gradually vortex post, vortex shell, gas-liquid mixture pipe and has fixed a position the mesh at the second end of shell along the rivers direction in the shell. The gas-liquid mixing pipe is provided with an accommodating cavity, a gas flow part, an accelerating part and a circulating part which are communicated in sequence from the head part to the tail part. The vortex column shell and the vortex column positioned in the vortex column shell are positioned in the accommodating cavity; the pipe wall of the airflow part is provided with an air inlet; the inner wall of the airflow part protrudes towards the direction of the accommodating cavity to form a funnel-shaped protruding part, and a gap for air entering from the air inlet to enter the airflow part is formed between the large opening end of the funnel-shaped protruding part and the conical vortex shell; the inner diameter of the accelerating part gradually increases towards the tail part. Rivers flow through the vortex post at the inside high-speed rotatory rivers that form of vortex shell, high-speed rotatory rivers flow out the back from the export of vortex shell and get into the funnel-shaped space that the bulge encloses in, negative pressure that forms around rivers inhales air from the air inlet and gets into acceleration portion after mixing with rivers, because the internal diameter of the toper face of vortex shell and acceleration portion is towards afterbody direction crescent and form pressure differential, make the rivers (formation bubble water) that mix a large amount of air flow with higher speed, bubble water flows to the hole net via circulation portion, bubble water is cut and is mixed by the pore in the hole net and produce the little bubble water that contains a large amount of microbubbles.

Chinese patent application for invention (CN107583480A) also discloses a microbubble generator. This microbubble generator includes that both ends are the shell of opening form, and the first end of shell is connected with the inlet tube, has set gradually pressure boost pipe, bubble generation pipe and has fixed a position the mesh at the second end of shell along the rivers direction in the shell. The bubble generation pipe is formed with holding chamber, gas-liquid mixture portion, expansion guide portion from first end to second end in proper order. Receiving a booster pipe in the accommodating chamber, the booster pipe having a tapered end facing the accommodating chamber; a tapered gas-liquid mixing space with the size gradually reduced along the direction from the first end to the second end is formed in the gas-liquid mixing part; an expansion guide space is formed in the expansion guide portion, and the size of the expansion guide space increases along the direction from the first end to the second end. The pipe wall of the bubble generation pipe is provided with an air inlet channel, a gap is formed between the inner wall of the gas-liquid mixing part and the outer wall of the pressurization pipe so as to be communicated with the air inlet channel on the pipe wall of the bubble generation pipe, and the water outlet of the pressurization pipe is arranged in the water inlet of the gas-liquid mixing part. The water flow is pressurized by the pressurizing pipe to form high-speed water flow, the high-speed water flow flows out of the water outlet of the pressurizing pipe and enters the gas-liquid mixing cavity, negative pressure is formed in the gas-liquid mixing cavity, a large amount of air is sucked into the water flow through the air inlet channel by the negative pressure, the air and the water are mixed to form bubble water, the bubble water flows to the mesh from the expansion guide part, and the bubble water is mixed and cut by the fine holes of the mesh to form micro-bubble water.

Both of the above-described two types of microbubble generators have at least five separate components: a shell, a water inlet pipe, a vortex column, a volute or a pressure increasing pipe, a gas-liquid mixing pipe or a bubble generating pipe, and a mesh. These components all require specific mating or connection structures designed to allow all of the components to be assembled together and to ensure that the assembled microbubble generator will operate reliably. In addition, in order to allow air to be sucked into the microbubble generator from the outside, air passages are required to be provided in the housing and the gas-liquid mixing tube or the bubble generating tube. Therefore, the microbubble generator is relatively complex in components and structure, and also high in manufacturing cost.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, that is, to solve the technical problems of complex structure and high manufacturing cost of the existing microbubble generator, the utility model provides a microbubble nozzle, which comprises an integrated nozzle and a bubbler, wherein the integrated nozzle comprises a channel formed therein; a throttling hole is formed in the channel along the water flow direction; the integrated spout further having an air passage formed thereon, the air passage being positioned downstream of the orifice in the direction of water flow so as to create a negative pressure near an outlet of the air passage when the water flow passes through the orifice and thereby draw ambient air into the integrated spout to mix the air with the water to generate bubble water; and the bubbler is secured to the outlet end of the integrated spout and has a mesh structure configured to form micro-bubble water as the bubble water flows therethrough.

In a preferred embodiment of the microbubble nozzle as described above, the orifice is located close to the outlet end, and the air passage is an air intake hole formed in a tube wall of the integrated nozzle or provided by a portion of the bubbler deviated from the center thereof.

In a preferred embodiment of the microbubble spray head described above, the bubbler extends radially beyond an outer diameter of the outlet end to increase air drawn through the bubbler.

In a preferred embodiment of the micro-bubble nozzle described above, the orifice is located close to the inlet end, and the air passage is an air intake hole formed in a tube wall of the integrated nozzle and is close to the orifice.

In a preferred embodiment of the micro-bubble spray head, the throttle hole is provided in a radial throttle portion extending inward from an inner wall of the integrated nozzle.

In the preferable technical scheme of above-mentioned microbubble shower nozzle, the microbubble shower nozzle still includes the throttle plate, be formed with annular step on the inner wall of integral type spray tube, the throttle plate is with the orientation the exit end supports to lean on the mode of annular step is inlayed and is established in the integral type spray tube, the throttle hole forms on the throttle plate.

In a preferred technical solution of the micro bubble showerhead, the mesh structure includes a plastic fence, a metal mesh, or a polymer material mesh.

In the preferable technical scheme of the micro-bubble spray head, the diameter range of the holes of the hole mesh structure is 0-1000 microns.

In the preferable technical scheme of above-mentioned microbubble shower nozzle, have connecting portion on the outer wall of the exit end of integral type spray tube, connecting portion are used for fixed connection the bubbler.

It can be understood by those skilled in the art that, in the technical solution of the present invention, the micro bubble spraying head includes an integrated spraying pipe and a bubbler installed at an outlet end of the integrated spraying pipe. A throttling hole is formed in the channel of the integrated spray pipe along the water flow direction; an air passage is also formed on the integrated spout, and is positioned downstream of the orifice, with an outlet of the air passage being adjacent to the orifice, so that when water flows through the orifice, a negative pressure is created near the outlet of the air passage and thus ambient air is drawn into the integrated spout to mix with the water to produce bubble water, which is cut and mixed by the bubbler as it flows through the bubbler to produce micro-bubble water. The orifice causes depressurization and expansion of the water stream, so that when the expanded water stream is injected into the downstream chamber within the integral lance, a negative pressure can be generated within the downstream chamber; under the action of negative pressure, a large amount of air is sucked into the integrated spray pipe from the outside through the air channel and is mixed with water to generate bubble water containing a large amount of bubbles; the bubble water then flows through a bubbler located at the outlet end to produce micro-bubble water containing a large number of micro-bubbles. The utility model discloses among the technical scheme of microbubble shower nozzle, the orifice through design in the integral type spray tube and fix the bubbler at the exit end of integral type spray tube realize producing the function of microbubble. Therefore, compare with the microbubble generator that has many parts of prior art, the utility model discloses the microbubble shower nozzle not only has good performance of producing the microbubble, and this microbubble shower nozzle's part quantity significantly reduces moreover, has also consequently saved the demand of designing and making the connection structure between the part to make the structure of microbubble shower nozzle also greatly simplified. Accordingly, the manufacturing cost of the entire microbubble showerhead is significantly reduced.

Preferably, the orifice is located near the outlet end of the integrated spout, and the air passage is disposed at the outlet end such that the outlet of the air passage is near the orifice, thereby facilitating the suction of the outside air from the air passage by the negative pressure created by the flow of water through the orifice. The air passage may not be separately designed but may be provided by using a portion of the mesh structure of the bubbler which is offset from the center thereof. Air is drawn directly into the integrated spout from the outlet end opening of the integrated spout via the bubbler. The radial diameter of the mesh structure of the bubbler may be larger than the outer diameter of the outlet end of the integrated spout in order to avoid the situation where the micro-bubble water flowing out of the bubbler blocks most or even all of the mesh holes, thereby allowing more air to be drawn in via the bubbler. Alternatively, the air channel may also be an air inlet formed in the wall of the one-piece nozzle at the outlet end.

Preferably, the orifice is located close to the inlet end of the integrated spout, and the air passage is also arranged close to the inlet end such that the outlet of the air passage is close to the orifice, thereby facilitating the suction of ambient air from the air passage by the negative pressure created by the water flow through the orifice. The air passage may be an air inlet formed in a wall of the one-piece spout adjacent the inlet end.

The utility model also provides a washing equipment, washing equipment includes as above any kind of microbubble shower nozzle, the microbubble shower nozzle sets to produce little bubble water in the washing equipment. The micro-bubble shower head generates micro-bubble water containing a large amount of micro-bubbles in the washing apparatus, so that not only the washing capacity of the washing apparatus can be improved, but also the amount of detergent used can be reduced and the residual amount of the detergent in, for example, laundry can be reduced.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of an embodiment of a washing apparatus including a micro-bubble shower head according to the present invention;

fig. 2 is a schematic perspective view of an embodiment of the micro bubble showerhead of the present invention;

fig. 3 is a front view of an embodiment of the micro bubble showerhead of the present invention shown in fig. 2;

fig. 4 is a top view of an embodiment of the microbubble showerhead of the present invention shown in fig. 2;

fig. 5 is a sectional view of a first embodiment of the micro bubble spray head of the present invention taken along section line E-E of fig. 4;

fig. 6 is a sectional view of a second embodiment of the micro bubble spray head of the present invention taken along section line E-E of fig. 4;

fig. 7 is a sectional view of a third embodiment of the micro bubble spray head of the present invention taken along section line E-E of fig. 4;

fig. 8 is a sectional view of a fourth embodiment of the micro bubble spray head of the present invention taken along section line E-E of fig. 4;

fig. 9 is a sectional view of a fifth embodiment of the microbubble showerhead of the present invention taken along a section line E-E of fig. 4.

List of reference numerals:

11. a box body; 12. a tray seat; 13; an upper cover; 14. ground feet; 21. an outer tub; 31. an inner barrel; 311. a dewatering hole; 32. an impeller; 33. a drive shaft; 34. a motor; 35. a balance ring; 41. a drain valve; 42. a drain pipe; 51. a water inlet valve; 52. a micro bubble spray head; 521. an integrated nozzle; 522. a bubbler; 523A, a first fixed mounting part; 523B, a second fixed mounting part; 524. a positioning part; 525. an air passage; 526. a seal ring; 211. an inlet end; 212. an outlet end; 213. preventing tendon from coming off; 214. a connecting portion; 215. an orifice; 216. a radial throttle portion; 216', a throttle plate; 217. a first cylindrical portion; 218. a second cylindrical portion.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to solve the problem that the structure of current microbubble generator is complicated, manufacturing cost is high, the utility model provides a microbubble shower nozzle, this microbubble shower nozzle include integral type spray tube and bubbler. The integrated spout includes a channel formed therein. And a throttling hole is arranged in the channel along the water flow direction. An air passage is also formed in the integrated spout and is positioned adjacent to the orifice so as to create a negative pressure near the outlet of the air passage when water flows through the orifice and thereby draw ambient air into the integrated spout to mix the air with the water to create bubble water. The bubbler is fixed on the outlet end of the integrated nozzle and has a mesh structure configured to be cut and mixed while the bubble water flows therethrough, thereby generating micro-bubble water containing a large amount of micro-bubbles. Therefore, compare in prior art's microbubble generator, the utility model discloses the part quantity and the structure of microbubble shower nozzle are all simplified greatly to the manufacturing cost of microbubble shower nozzle also reduces by a wide margin, and the microbubble shower nozzle still keeps the performance of good production microbubble simultaneously.

The utility model discloses the microbubble shower nozzle can use in the washing field, the field of disinfecting, or other fields that need the microbubble. For example, the utility model discloses the microbubble shower nozzle can enough be used in the washing equipment, also can combine in devices such as bathroom tap or gondola water faucet.

Therefore, the utility model also provides a washing equipment, this washing equipment includes the utility model discloses a microbubble shower nozzle. The micro-bubble spray head is configured to generate micro-bubble water within the scrubbing apparatus. The micro-bubble water containing a large amount of micro-bubbles is generated in the washing equipment through the micro-bubble spray head, so that the washing capacity of the washing equipment can be improved, the using amount of the detergent can be reduced, the residual amount of the detergent in clothes can be reduced, and the health of a user is benefited.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a washing apparatus with a micro bubble showerhead according to the present invention. In this embodiment, the washing apparatus is a pulsator washing machine. Alternatively, in other embodiments, the washing apparatus may be a drum washing machine or a dryer, etc.

As shown in fig. 1, a pulsator washing machine (hereinafter, referred to as a washing machine) includes a cabinet 11, a tray 12 is provided at an upper portion of the cabinet 11, and an upper cover 13 is pivotally coupled to the tray 12. An outer tub 21 as a tub is provided in the cabinet 11. An inner barrel 31 is arranged in the outer barrel 21, the bottom of the inner barrel 31 is provided with a wave wheel 32, the lower part of the outer barrel 21 is fixed with a motor 34, the motor 34 is in driving connection with the wave wheel 32 through a transmission shaft 33, and the side wall of the inner barrel 31 is provided with a dewatering hole 311 near the top end. The drain valve 41 is provided on the drain pipe 42, and an upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21. The washing machine further includes a water inlet valve 51 and a micro bubble spray head 52 communicating with the water inlet valve 51, the micro bubble spray head 52 being installed on the top of the outer tub 21. The water enters the micro bubble spray head 52 through the water inlet valve 51 to generate micro bubble water containing a large amount of micro bubbles, and the micro bubble spray head 52 sprays the micro bubble water into the detergent box to be mixed with the detergent, and then enters the inner tub 31 through the detergent box for washing the laundry. The micro-bubbles in the water impact the detergent in the crushing process, and the micro-bubbles can adsorb the detergent through the carried negative charges, so that the micro-bubbles can increase the mixing degree of the detergent and the water, thereby reducing the using amount of the detergent and reducing the residual amount of the detergent on the clothes. In addition, the micro bubbles may also hit dirt on the laundry in the inner tub 31 and may adsorb foreign substances that generate the dirt. Therefore, the micro bubbles also enhance the detergency performance of the washing machine. Alternatively, the micro bubble spray head may also directly spray micro bubble water carrying a large amount of micro bubbles into the outer tub 21 or the inner tub 31 of the washing machine to further reduce the amount of detergent and enhance the cleaning ability of the washing machine.

Referring to fig. 2-4, fig. 2 is a schematic perspective view of an embodiment of a micro bubble nozzle according to the present invention, fig. 3 is a front view of an embodiment of a micro bubble nozzle according to the present invention shown in fig. 2, and fig. 4 is a top view of an embodiment of a micro bubble nozzle according to the present invention shown in fig. 2. As shown in fig. 2-4, the microbubble sprayer 52 of the present invention includes, as an embodiment, an integrated nozzle 521. At the outlet end of the integrated nozzle 521 is mounted a bubbler 522, the bubbler 522 being of a mesh structure and being configured to cut and mix bubble water while the bubble water flows therethrough to generate micro-bubble water containing a large amount of micro-bubbles.

Optionally, the mesh structure of the bubbler 522 has at least one pore with a diameter of micron order, preferably, the pore has a diameter of 0-1000 micron; more preferably, the diameter of the fine pores is between 5 and 500 μm. The mesh structure of bubbler 522 may be a plastic barrier, a metal mesh, a polymer mesh, or other suitable mesh structure. The plastic fence is generally a polymer fence, which is formed by integrally injection molding a polymer material, or by first forming a sheet from a polymer material and then machining the sheet to form a microporous structure. The polymer material net is usually a net having a microporous structure formed by weaving a polymer material into filaments. The polymer material net may include nylon net, cotton net, polyester net, polypropylene net, etc. Alternatively, the bubbler 522 may be another mesh structure capable of generating micro bubbles, for example, a mesh structure composed of two non-micron-sized honeycomb structures.

Alternatively, a first fixing mount portion 523A, a second fixing mount portion 523B, and a positioning portion 524 for positioning and fixing the microbubble head 52 to a predetermined position are provided on the outer wall of the integrated nozzle 521.

Referring to fig. 3 and 4, the first and second fixed mounting parts 523A and 523B are symmetrically positioned on the outer wall of the integrated nozzle 521 and at the middle of the integrated nozzle 521. The positioning portion 524 is a long rib protruding radially outward from the outer wall of the integrated spout 521 and extending in the longitudinal direction of the integrated spout 521. The first and second fixing mounting portions 523A and 523B are distributed on both sides of the positioning portion 524. Alternatively, only one fixed mounting portion may be provided on integrated spout 521, and locating portion 524 may take other suitable forms.

As shown in fig. 4, in one embodiment, the first and second stationary mounting portions 523A, 523B are screw hole structures. However, the fixed mounting portion may employ any suitable connection structure, such as a snap-fit connection structure, a welded connection structure, or the like.

Referring to fig. 5, fig. 5 is a sectional view of a first embodiment of the micro bubble showerhead of the present invention taken along section line E-E of fig. 4. As shown in fig. 5, the microbubble head 52 includes an integrated nozzle 521. Integral lance 521 has an inlet end 211 and an outlet end 212. A bubbler 522 is secured to the outlet end 212. Bubbler 522 may be any suitable mesh structure for generating microbubbles, as set forth in the above examples. The bubbler 522 is secured to the outlet end 212 by a connection 214 on the outlet end 212. The connection 214 may be a snap-fit structure, a welded structure, or other suitable connection structure. Optionally, a slip-off prevention rib 213 is provided on the inlet end 211, and the slip-off prevention rib 213 bulges radially outward around the outer wall of the inlet end 211. The slip prevention rib 213 can prevent the micro bubble showerhead from slipping off from the water supply pipe after the micro bubble showerhead is connected to the water supply pipe. Alternatively, other detachment prevention structures, such as a built-in structure, may be provided on the inlet end 211.

As shown in fig. 5, in the passage of the integrated spout 521, a first cylindrical portion 217, a radial throttle portion 216, an orifice 215 formed on the radial throttle portion 216, and a second cylindrical portion 218 are formed in this order along the water flow direction C. The first cylindrical portion 217 extends from the inlet end 211 to the radial throttle portion 216, and communicates with the throttle hole 215 of the radial throttle portion 216. The second cylindrical portion 218 communicates with the orifice hole 215 and extends from the radial throttle portion 216 to the outlet end 212. The radial throttle portion 216 is positioned proximate the outlet end 212 adjacent the bubbler 522. The air passage 525 (as indicated by the arrow in the drawing) is formed directly in a portion (i.e., a radially outer portion) of the bubbler 522 that is offset from the center thereof, and thus it can be seen that the air passage 525 is provided by the radially outer portion of the bubbler 522. The water flow enters from the inlet end 211, flows through the first cylindrical part 217 and then flows through the throttle hole 215 of the radial throttle part 216; the water flow is expanded and injected into the downstream second cylinder portion 218 via the orifice 215 and a negative pressure is generated in the second cylinder portion 218, and since the second cylinder portion 218 is close to the bubbler 522, air is sucked from the periphery of the bubbler 522 and mixed with water therein to generate bubble water by the negative pressure, and the bubble water flows through the bubbler 522 to be cut and mixed thereby to generate micro-bubble water containing a large amount of micro-bubbles. Other parts of this embodiment not mentioned are the same as those of the previous embodiment.

Referring to fig. 6, fig. 6 is a sectional view of a second embodiment of the micro bubble showerhead of the present invention taken along section line E-E of fig. 4. As shown in fig. 6, in this embodiment, an air passage 525 is formed in a radially outer portion of the bubbler 522. The outer diameter of the bubbler 522 is increased beyond the outer diameter of the outlet end 212. this design avoids the occurrence of micro-bubble water flowing out of the bubbler blocking most or even all of the mesh openings, allowing more air to be drawn in through the bubbler 522, thereby increasing the number of bubbles in the water. Other parts of this embodiment not mentioned are the same as those of the previous embodiment.

Referring to fig. 7, fig. 7 is a sectional view of a third embodiment of the micro bubble showerhead of the present invention taken along section line E-E of fig. 4. As shown in fig. 7, in this embodiment, the air passage 525 is a through hole formed in the pipe wall of the integrated lance 521 at the outlet end 212 and downstream of the orifice 215. Other parts of this embodiment not mentioned are the same as those of the previous embodiment.

Referring to fig. 8, fig. 8 is a sectional view of a fourth embodiment of the micro bubble showerhead of the present invention taken along section line E-E of fig. 4. As shown in FIG. 8, radial throttle 216 is positioned proximate to inlet end 211 of integrated nozzle 521. In the passage of the integrated nozzle 521, a first cylindrical portion 217, a radial throttle portion 216, a throttle hole 215 formed in the radial throttle portion 216, and a second cylindrical portion 218 are formed in this order along the water flow direction C. The air passage 525 is a through hole formed in the wall of the integrated spout 521, near the inlet end 211 and downstream of the orifice 215. The water flow enters from the inlet end 211, flows through the first cylindrical part 217 and then flows through the throttle hole 215 of the radial throttle part 216; the water flow is injected into the second cylinder portion 218 after being expanded by the orifice 215, and a negative pressure is generated in the second cylinder portion 218 near the outlet of the air passage 525; under the negative pressure, air is sucked into the second cylindrical portion 218 through the air passages (through holes) 525 in the pipe wall and mixed with water therein to generate bubble water, which flows through the second cylindrical portion 218 and then flows through the bubbler 522. The bubble water is cut and mixed in the bubbler 522, thereby generating micro-bubble water containing a large amount of micro-bubbles. Other parts of this embodiment not mentioned are the same as those of the previous embodiment.

Referring to fig. 9, fig. 9 is a sectional view of a fifth embodiment of the microbubble showerhead of the present invention taken along a section line E-E of fig. 4. As shown in fig. 9, in this embodiment, the radial throttle portion 216 is replaced with a throttle plate 216 ', and a throttle hole 215 is formed in the throttle plate 216' in the water flow direction C. Throttle plate 216' is formed separately from integral nozzle 521. An annular step is formed on the inner wall of the integrated nozzle 521, and the throttle plate 216' abuts against the annular step facing the outlet end 212 so as to be embedded in the integrated nozzle 521. A gasket 526 is also provided between throttle plate 216 'and the inner wall of integrated spout 521 to prevent water from leaking between throttle plate 216' and the inner wall of integrated spout 521. The seal 526 may be made of any suitable sealing material, such as a rubber seal. Other parts of this embodiment not mentioned are the same as those of the previous embodiment.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without deviating from the principle of the present invention, a person skilled in the art may combine technical features from different embodiments, and may make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A micro-bubble spray head is characterized by comprising an integrated spray pipe and a bubbler,

the integrated spout includes a channel formed therein;

a throttling hole is formed in the channel along the water flow direction;

the integrated spout further having an air passage formed thereon, the air passage being positioned downstream of the orifice in the direction of water flow so as to create a negative pressure near an outlet of the air passage when the water flow passes through the orifice and thereby draw ambient air into the integrated spout to mix with the water to generate bubble water; and is

The bubbler is secured to the outlet end of the integrated spout and has a mesh structure configured to form micro-bubble water as the bubble water flows therethrough.

2. The microbubble showerhead of claim 1, wherein the orifice is positioned near the outlet end, and the air passage is an air intake formed on a tube wall of the integrated nozzle or is provided by a portion of the bubbler that is offset from a center thereof.

3. The microbubble showerhead of claim 2, wherein the bubbler extends radially beyond an outer diameter of the outlet end to increase air drawn through the bubbler.

4. The microbubble showerhead of claim 1, wherein the orifice is positioned near an inlet end of the integrated nozzle, and the air passage is an air intake hole formed on a tube wall of the integrated nozzle and is near the orifice.

5. The microbubble showerhead of any of claims 1 to 4, wherein the orifice is provided on a radial throttle portion extending inward from an inner wall of the integrated nozzle pipe.

6. The microbubble showerhead of any of claims 1 to 4, further comprising a throttle plate, an annular step being formed on an inner wall of the integrated nozzle tube, the throttle plate being embedded within the integrated nozzle tube in such a manner as to abut against the annular step toward the outlet end, the throttle plate being formed on the throttle plate.

7. The microbubble showerhead of claim 1, wherein the mesh structure comprises a plastic fence, a metal mesh, or a mesh of a polymer material.

8. The microbubble showerhead of claim 1, wherein the pores of the mesh structure have a diameter in a range between 0-1000 microns.

9. The microbubble showerhead of claim 1 wherein the outlet end of the integrated nozzle has a connection on an outer wall thereof for fixedly connecting the bubbler.

10. A scrubbing apparatus, comprising a microbubble spray head according to any of claims 1 to 9, the microbubble spray head being configured to generate microbubble water within the scrubbing apparatus.

Images