CN211368091U

CN211368091U - Microbubble shower nozzle and have washing equipment of this microbubble shower nozzle

Info

Publication number: CN211368091U
Application number: CN201921748857.6U
Authority: CN
Inventors: 赵志强; 许升
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-28
Anticipated expiration: 2029-10-17

Abstract

The utility model relates to a microbubble shower nozzle and washing equipment that has this microbubble shower nozzle. The micro-bubble spray head comprises a water inlet pipe component and a water outlet pipe component, wherein the interior of the water inlet pipe component is provided with a throttling hole; the outlet pipe part has an air mixing end and a microbubble generation end including a bubbler, the air mixing end is provided with a second joint part, in an assembled state of the inlet pipe part and the outlet pipe part, the first joint part and the second joint part are jointed with each other and form an axial gap therebetween, the axial gap and a radial passage arranged on or near the air mixing end are communicated with each other to form an inlet passage, an outlet of the inlet passage is close to the orifice so that when water flows through the orifice, negative pressure is formed near the outlet of the inlet passage to suck air into the outlet pipe part to be mixed with the water to generate bubble water, and the bubble water forms microbubble water when flowing through the bubbler.

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 flow into 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 and form high-speed rotatory rivers inside the 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 increases gradually towards the afterbody direction and forms 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 form 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 outer 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 structure of such a microbubble generator is complicated, and the manufacturing cost is also high.

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-mentioned problem among the prior art, for the technical problem that the current microbubble generator structure is complicated, manufacturing cost is high is solved for, the utility model provides a microbubble shower nozzle, the microbubble shower nozzle includes: a water inlet pipe component having a water inlet end allowing inflow of water and a throttle end, the throttle end being provided with a first engagement portion; an orifice disposed within the inlet pipe section along a water flow direction; a water outlet pipe part having an air mixing end and a microbubble generation end, the air mixing end being provided with a second engaging portion, the first engaging portion and the second engaging portion being engaged with each other in a state in which the water inlet pipe part and the water outlet pipe part are assembled, an axial gap being formed between the first engaging portion and the second engaging portion, the axial gap and a radial passage provided on or near the air mixing end being communicated with each other to form an air intake passage, an outlet of the air intake passage being close to the orifice so that when water flows through the orifice, a negative pressure is formed near the outlet of the air intake passage and thus external air is sucked into the water outlet pipe part to be mixed with the water to generate bubble water; a bubbler fixed to a microbubble generation end of the water outlet pipe part and disposed to be capable of forming microbubble water when the microbubble water flows therethrough.

In a preferable embodiment of the micro-bubble showerhead described above, the micro-bubble showerhead includes a radial throttle portion formed in the throttle end, and the throttle hole is formed in the radial throttle portion.

In a preferred embodiment of the microbubble nozzle, the microbubble nozzle includes a throttle plate, an annular rib extending radially inward is provided in the throttle end, the throttle plate abuts against the annular rib toward the water outlet pipe unit, and the throttle hole is formed in the throttle plate.

In a preferred embodiment of the micro-bubble nozzle, the radial passage is a radial gap formed between the throttle end and a surface of the air mixing end abutting against the throttle end, or a radial hole directly formed on the air mixing end.

In a preferred embodiment of the micro-bubble showerhead, the first engaging portion is an internally threaded bore wall provided in the throttle end, and the second engaging portion is an externally threaded cylindrical surface provided on the air mixing end; or, the first engagement portion is an externally threaded cylindrical surface disposed on the choke end and the second engagement portion is an internally threaded bore wall disposed within the air mixing end; the axial gap is formed between the inner threaded bore wall and the outer threaded cylindrical surface.

In the preferable technical solution of the above micro-bubble nozzle, the first engaging portion is a smooth hole wall provided in the throttle end, the second engaging portion is a non-smooth cylindrical surface provided on the air mixing end, the non-smooth cylindrical surface is provided with a plurality of ribs or grooves, and the axial gap is formed between the smooth hole wall and the non-smooth cylindrical surface.

In the preferable technical scheme of the micro-bubble nozzle, the first joint part is a non-smooth hole wall arranged in the throttling end, a plurality of convex ridges or grooves are arranged on the non-smooth hole wall, the second joint part is a smooth cylindrical surface arranged at the air mixing end, and the axial gap is formed between the non-smooth hole wall and the smooth cylindrical surface.

In the preferable technical scheme of above-mentioned microbubble shower nozzle, first joint portion sets up the non-smooth pore wall in the throttle end, be provided with many beads and/or slots on the non-smooth pore wall, the second joint portion sets up the non-smooth cylinder on the air mixing end, be provided with many beads and/or slots on the non-smooth cylinder, the axial clearance forms non-smooth pore wall with between the non-smooth cylinder.

In the preferable technical scheme of the micro-bubble sprayer, the starting block is of a mesh structure, and the mesh structure comprises a plastic fence, a metal net or a high polymer material net.

As can be understood by those skilled in the art, in the technical solution of the present invention, the micro bubble spraying head includes a water inlet pipe component with a throttling hole inside and a water outlet pipe component with a bubbler at the water outlet end, and the air inlet channel is composed of an axial gap and a radial channel which are communicated with each other: the axial gap is formed between a first joint part of the throttling end of the water inlet pipe component and a second joint part of the air mixing end of the water outlet pipe component; the radial passage is formed on or near the air mixing end. Water flows into the water inlet pipe component from the water inlet end of the water inlet pipe component; the water flow is then depressurized and expanded through the orifice; the expanded water flow is sprayed into the water outlet pipe part, negative pressure is generated in the air mixing end, and under the action of the negative pressure, a large amount of air is sucked into the air mixing end from the outside through the axial gap and the radial gap and is mixed with water to generate bubble water containing a large amount of bubbles; the bubble water finally flows through a bubbler at a microbubble generation end of the water outlet pipe part to generate micro-bubble water containing a large amount of microbubbles. The technical scheme of the utility model in, only need to hold the throttle of inlet pipe part and the air mixing of outlet pipe part and combine together and just form the microbubble shower nozzle, consequently this microbubble shower nozzle can be regarded as the microbubble shower nozzle of two parts formula. Further, the air intake passage is incorporated between the joint portions of the water inlet pipe member and the water outlet pipe member, and therefore, it is not necessary to separately provide an air intake passage at other portions of the micro bubble showerhead. Compared with the prior art, the utility model discloses a microbubble shower nozzle not only has the good performance that produces the microbubble, and its part and structure are all simplified greatly moreover, and its manufacturing cost consequently also obtains showing and reduces.

Preferably, the first engaging portion of the throttle end of the water inlet pipe member is an internally threaded bore wall and the second engaging portion of the air mixing end of the water outlet pipe member is an externally threaded cylindrical surface that engages with the internally threaded bore wall, or the first engaging portion of the throttle end is an externally threaded cylindrical surface and the second engaging portion of the air mixing end is an internally threaded bore wall that engages with the externally threaded cylindrical surface. This forms an axial gap by the clearance provided between the engaged threads, which forms part of the inlet passage. Alternatively, the first engaging portion is a smooth bore wall and the second engaging portion is a non-smooth cylindrical surface having a plurality of ridges or grooves thereon that mate with the smooth bore wall; or the first joint part is a non-smooth hole wall provided with a plurality of convex ridges or grooves, and the second joint part is a smooth cylindrical surface matched with the non-smooth hole wall; alternatively, the first engaging portion is a non-smooth bore wall having a plurality of ribs or grooves formed thereon, and the second engaging portion is a non-smooth cylindrical surface having a plurality of ribs or grooves formed thereon that is complementary to the smooth bore wall. These mating engagement structures all achieve the objective of forming an axial gap between the first engagement portion and the second engagement portion.

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 diagram of an embodiment of a washing apparatus with a micro-bubble spray 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 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. a water inlet pipe member; 522. a water outlet pipe component; 523. a bubbler; 524A, a first fixed mounting part; 524B, a second fixed mounting part; 525. an orifice; 526. an axial clearance; 527. a radial gap; 528. a throttle section; 528', a throttle plate; 529. a seal ring; 211. a first engaging portion; 212. a water inlet end; 213. a throttle end; 221. a second engaging portion; 222. a microbubble generation end; 223. an air mixing end; 281. an insertion 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 into water pipe part and play water pipe part. The water inlet pipe part has a water inlet end allowing inflow of water and a throttle end, and the throttle end is provided with a first joint. And a throttling hole arranged along the water flow direction is also arranged in the water inlet pipe component. The water outlet pipe part has an air mixing end and a microbubble generation end, the air mixing end is provided with a second joint part, and a bubbler is fixed at the microbubble generation end. In an assembled state of the inlet pipe member and the outlet pipe member, the first engaging portion and the second engaging portion engage with each other, and an axial gap is formed between the first engaging portion and the second engaging portion. The axial gap and a radial passage provided on or near the air mixing end communicate with each other to form an intake passage. The outlet of the intake passage is close to the orifice so that when water flows through the orifice, a negative pressure is formed near the outlet of the intake passage and thus outside air is sucked into the outlet pipe member to mix the air with the water to generate bubble water. The bubbler is configured to form micro-bubble water as the bubble water flows therethrough. Part of the air inlet passage is directly formed between the first joint portion of the throttle end and the second joint portion of the air mixing end, and the micro bubble spray head can be formed by combining the throttle end of the water inlet pipe part and the air mixing end of the water outlet pipe part. 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. 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 water containing a large amount of micro bubbles into the detergent box to be mixed with the detergent, and then enters the inner tub 31 through the detergent box to wash the laundry. The micro-bubbles impact the detergent during the crushing process, and the micro-bubbles can adsorb the detergent through the carried negative charges, so 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, as an embodiment, includes a water inlet pipe unit 521 and a water outlet pipe unit 522. At one end of the water outlet pipe part 522 is mounted a bubbler 523, and the bubbler 523 is provided to mix and cut bubble water while the bubble water flows therethrough to form micro-bubble water.

Optionally, the bubbler 523 is a mesh structure having at least one pore with a diameter of micron order, preferably, 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 523 may be a plastic fence, 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 523 may be another mesh structure capable of generating micro bubbles, for example, a mesh structure composed of two non-micron-sized honeycomb structures.

Optionally, a first fixed mounting portion 524A and a second fixed mounting portion 524B are provided on the water inlet pipe section 521.

Referring to fig. 3 and 4, the first and second fixing mounts 524A and 524B are symmetrically positioned on both sides of the outer wall of the water inlet pipe section 521 and in the middle of the micro-bubble shower head 52 for fixing the micro-bubble shower head 52 to a predetermined mounting position. Alternatively, the first and

second fixing portions

524A, 524B may be provided on the outlet pipe member 522, or only one fixing portion may be provided on the micro bubble shower head 52.

As shown in FIG. 4, in one embodiment, the first and second fixing mounts 524A, 524B are screw hole features. 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 spray head 52 includes a water inlet pipe section 521 and a water outlet pipe section 522.

As shown in FIG. 5, the water inlet pipe part 521 has a water inlet end 212 allowing water to flow in and a throttle end 213 allowing water to flow out of the water inlet pipe part 521. The water inlet pipe member 521 has a radial throttle portion 528 extending inward from its inner wall, and a throttle hole 525 arranged in the water flow direction C is formed in the radial throttle portion 528. A first engagement portion 211 is formed in the throttle end 213 downstream of the throttle bore 525, the first engagement portion 211 being in the form of an internally threaded bore wall. With continued reference to fig. 5, the water outlet pipe section 522 has an air mixing end 223 and a microbubble generation end 222. The air mixing end 223 is located upstream of the microbubble generation end 222 in the water flow direction. The air mixing end 223 is provided with a second engagement portion 221, and the second engagement portion 221 is a cylindrical surface with an external thread such that the external thread can be engaged with the internal thread of the first engagement portion 211. A bubbler 523 capable of generating microbubbles is fixed at the microbubble generation end 222. The bubbler 523 may be any mesh structure capable of generating microbubbles, as noted in the above examples.

As shown in fig. 5, in the assembled state of the water inlet pipe part 521 and the water outlet pipe part 522, the internal thread of the first joint part 211 and the external thread of the second joint part 221 are engaged with each other, and the end surface of the air mixing end 223 abuts against the radial abutting surface formed in the throttle end 213. This radial abutment surface is flush with the side of the radial restriction 528 facing the outlet pipe member 522. An axial gap 526 is formed between the internal and external threads and a radial gap 527 is formed between the end face of the air mixing end 223 and the abutment face of the choke end 213. The axial gap 526 and the radial gap 527 communicate with each other to form an intake passage, the outlet of which is close to the throttle hole 525. After entering the water inlet pipe element 521, the water flows through the throttle hole 525, and under the action of the throttle hole 525, the water is decompressed and expanded and is thus injected into the water outlet pipe element 522 at a high speed, so that a negative pressure is formed near the outlet of the air inlet passage; a large volume of ambient air is drawn into the outlet pipe member 522 under negative pressure through the axial gap 526 and the radial gap 527 and mixes with the water to produce bubble water. The bubble water then flows through the bubbler 523 and is cut and mixed by the bubbler 523 to generate micro-bubble water.

Alternatively, the first engagement portion 211 of the choke end 213 is provided as an externally threaded cylindrical surface and the second engagement portion 221 of the air mixing end 223 is provided as an internally threaded bore wall (not shown) that mates with the externally threaded cylindrical surface. An abutment surface is formed within the air mixing end 223. In the assembled state of the water inlet pipe member 521 and the water outlet pipe member 522, the external thread of the first engagement portion 211 of the throttle end 213 engages the internal thread of the second engagement portion of the air mixing end 223, and the end surface of the throttle end 213 abuts against the abutting surface in the air mixing end 223. An axial gap is formed between the mating male and female threads, and a radial gap is formed between the abutting end faces and the abutting faces.

Alternatively, the first engagement portion 211 is a smooth bore wall disposed within the choke end 213 and the second engagement portion 221 is a non-smooth cylindrical surface disposed on the air mixing end 223 and having a plurality of ribs or grooves (not shown). An axial gap is formed between the smooth bore wall and the non-smooth cylindrical surface.

Alternatively, the first engagement portion 211 is a non-smooth bore wall disposed within the choke end 213, the non-smooth bore wall having a plurality of ridges or grooves disposed thereon, and the second engagement portion 221 is a smooth cylindrical surface (not shown) disposed on the air mixing end 223. An axial gap is formed between the non-smooth bore wall and the smooth cylindrical surface.

Alternatively, the first engagement portion 211 is a non-smooth bore wall disposed within the choke end 213, the non-smooth bore wall having a plurality of ribs and/or grooves disposed thereon, and the second engagement portion is a non-smooth cylindrical surface disposed on the air mixing end, the non-smooth cylindrical surface having a plurality of ribs and/or grooves (not shown). An axial gap is formed between the non-smooth bore wall and the non-smooth cylindrical surface.

The utility model discloses the matching structure of first joint portion and second joint portion of microbubble shower nozzle is not limited to the above-mentioned structure that specifically lists, and the structure of for example matching can be "bead + bead" structure, "recess + recess" structure, "bead + recess" structure, or other suitable matching structures that can form the reservation clearance.

Alternatively, the radial gap 527 formed between the end face of the air mixing end 223 and the abutment face of the throttle end 213 is replaced by a radial hole (not shown) formed on the air mixing end 223. The radial hole extends through the sidewall of the air mixing end 223 to communicate with the axial gap 526 and the lumen of the air mixing end 223, respectively, to allow air to be drawn into the lumen of the air mixing end 223 via the axial gap 526 and the radial hole under the negative pressure created by the orifice 525.

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, a cylindrical insertion portion 281 is formed in the radial throttle portion 528. The insertion portion 281 extends around the orifice 525 toward the air mixing end 213 of the downstream outlet pipe member 522. The insertion portion 281 prevents the water flow ejected from the orifice 525 from flowing from the outlet of the intake passage into the radial gap 527 and the axial gap 526 and further to the outside of the microbubble head. 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, the throttle hole 525 is formed on the throttle plate 528 'separately from the intake pipe member 521, and is arranged in the center of the throttle plate 528' in the water flow direction C. An inwardly radially extending annular rib 214 is provided in the throttle end 213 of the water inlet pipe section 521. The side of the annular rib 214 facing the outlet pipe member 522 is flush with the abutment surface of the restriction hole 213 so that the outlet of the intake passage is located between the annular rib 214 and the air mixing end 223. The throttle plate 528' abuts against the annular rib 214 towards the outlet pipe section 522. A seal 529 is also provided between the throttle plate 528' and the inner wall of the inlet pipe member 521 to prevent water from bypassing the throttle hole and flowing into the outlet pipe member 522. The seal 529 may be any suitable form of sealing material, such as a rubber gasket. 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

1. A micro bubble showerhead, comprising:

a water inlet pipe component having a water inlet end allowing inflow of water and a throttle end, the throttle end being provided with a first engagement portion;

an orifice disposed within the inlet pipe section along a water flow direction;

a water outlet pipe part having an air mixing end and a microbubble generation end, the air mixing end being provided with a second engaging portion, the first engaging portion and the second engaging portion being engaged with each other in a state in which the water inlet pipe part and the water outlet pipe part are assembled, an axial gap being formed between the first engaging portion and the second engaging portion, the axial gap and a radial passage provided on or near the air mixing end being communicated with each other to form an air intake passage, an outlet of the air intake passage being close to the orifice so that when water flows through the orifice, a negative pressure is formed near the outlet of the air intake passage and thus external air is sucked into the water outlet pipe part to be mixed with the water to generate bubble water;

a bubbler fixed to a microbubble generation end of the water outlet pipe part and disposed to be capable of forming microbubble water when the microbubble water flows therethrough.

2. The microbubble showerhead of claim 1, comprising a radial throttle portion formed in the throttle end, the throttle hole being formed on the radial throttle portion.

3. The microbubble showerhead of claim 1, wherein the microbubble showerhead comprises a throttle plate, an annular rib extending radially inward is provided in the throttle end, the throttle plate abuts against the annular rib toward the water outlet pipe section, and the throttle hole is formed in the throttle plate.

4. The microbubble showerhead of claim 1, wherein the radial passages are radial gaps formed between faces against which the throttle end and the air mixing end abut or radial holes formed on the air mixing end.

5. The microbubble showerhead of any of claims 1-3, wherein the first engagement portion is an internally threaded bore wall disposed within the throttle end and the second engagement portion is an externally threaded cylindrical surface disposed on the air mixing end; or, the first engagement portion is an externally threaded cylindrical surface disposed on the choke end and the second engagement portion is an internally threaded bore wall disposed within the air mixing end; the axial gap is formed between the inner threaded bore wall and the outer threaded cylindrical surface.

6. The microbubble showerhead of any of claims 1-3, wherein the first engagement portion is a smooth bore wall provided within the throttle end, the second engagement portion is a non-smooth cylindrical surface provided on the air mixing end, the non-smooth cylindrical surface having a plurality of ridges or grooves provided thereon, and the axial gap is formed between the smooth bore wall and the non-smooth cylindrical surface.

7. The microbubble showerhead of any of claims 1-3, wherein the first land is a non-smooth bore wall disposed within the throttle end, the non-smooth bore wall having a plurality of ridges or grooves disposed thereon, the second land is a smooth cylindrical surface disposed on the air mixing end, and the axial gap is formed between the non-smooth bore wall and the smooth cylindrical surface.

8. The microbubble showerhead of any of claims 1-3, wherein the first land is a non-smooth bore wall disposed within the throttle end, the non-smooth bore wall having a plurality of ribs and/or grooves disposed thereon, the second land is a non-smooth cylindrical surface disposed on the air mixing end, the non-smooth cylindrical surface having a plurality of ribs and/or grooves disposed thereon, the axial gap being formed between the non-smooth bore wall and the non-smooth cylindrical surface.

9. The microbubble showerhead of any of claims 1 to 3, wherein the bubbler is a mesh structure comprising a plastic fence, a metal mesh, or a mesh of a polymer material.

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.