CN114054227B

CN114054227B - Spraying device and washing system

Info

Publication number: CN114054227B
Application number: CN202010752315.7A
Authority: CN
Inventors: 熊力宁; 蒋黎; 熊明; 史亚成; 王嘉
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2023-03-21
Anticipated expiration: 2040-07-30
Also published as: CN114054227A

Abstract

The invention discloses a spraying device and a washing system, wherein the spraying device comprises: and a spray header. Inject in the shower head and hold the chamber, the shower head has water inlet and delivery port, and the shower head includes shower head body and shower plate, and the shower plate is established and is held at the opening of shower head body, and the shower head body includes shower head shell and shower head lid, and the water inlet forms on the shower head shell, and the shower plate is established and is located the opening side of shower head shell in the shower head lid, and the delivery port is including forming a plurality of spray holes on the shower plate. According to the spray device provided by the embodiment of the invention, the spray plate is arranged in the spray head cover, so that the spray plate can be pressed on the spray head shell when the spray head is assembled, and then the spray head cover is connected to the spray head shell, so that the spray plate is convenient to mount and fix, and the spray head is more convenient to assemble.

Description

Spraying device and washing system

Technical Field

The invention relates to the field of spraying and washing, in particular to a spraying device and a washing system.

Background

The related art spray device, such as a showerhead of a shower system, has a structural limitation of a showerhead, resulting in inconvenient assembly of the showerhead.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the invention to provide a shower device whose shower head is easy to assemble.

The invention also provides a washing system with the spraying device.

According to a first aspect embodiment of the invention, a spray device comprises: the shower head, inject in the shower head and hold the chamber, the shower head has water inlet and delivery port, the shower head includes shower head body and spray plate, the spray plate is established the end that opens of shower head body, the shower head body includes shower head shell and shower head lid, the water inlet forms on the shower head shell, the spray plate is established in the shower head lid and be located the opening side of shower head shell, the delivery port is including forming a plurality of spray holes on the spray plate.

According to the spray device provided by the embodiment of the invention, the spray plate is arranged in the spray head cover, so that the spray plate can be pressed on the spray head shell when the spray head is assembled, and then the spray head cover is connected to the spray head shell, so that the spray plate is convenient to mount and fix, and the spray head is more convenient to assemble.

According to some embodiments of the present invention, the shower head cover includes a cover body having a cylindrical shape and a stopper portion connected to an end of the cover body remote from the shower head case, the stopper portion is located on an inner circumferential side of the cover body, the cover body is connected to the shower head case, and the shower plate abuts against or is connected to the stopper portion.

In some optional embodiments of the present invention, the spray plate includes a plate body and an engaging portion formed on an outer peripheral edge of the plate body, the engaging portion is located on a side of the plate body adjacent to the nozzle casing, the engaging portion engages with the cover body, the plate body is formed with a plurality of the spray holes, and the plate body abuts against or is connected to the stopper portion.

Furthermore, a positioning notch is formed in the plate body, the stopping portion is matched with the positioning notch, and the free end of the stopping portion is abutted to the side wall of the positioning notch.

According to some embodiments of the invention, the showerhead housing and the showerhead cover are threadably connected.

According to some embodiments of the invention, the spray device comprises: the cavitation piece is used for generating micro bubbles, the cavitation piece is arranged in the containing cavity and is positioned between the water inlet and the water outlet, the cavitation piece is arranged between the spray header and defines a gas dissolving cavity communicated with the water inlet, the gas dissolving cavity is positioned near the cavitation piece on one side of the water inlet, a cavitation channel communicated with the gas dissolving cavity and the water outlet is formed in the cavitation piece, a water outlet cavity is defined between the cavitation piece and the spray plate, and the cavitation channel is communicated with the gas dissolving cavity and the water outlet cavity.

In some optional embodiments of the invention, the spray device comprises: and the sealing assembly is arranged between the cavitation piece and the inner wall of the accommodating cavity.

Optionally, the seal assembly comprises a seal, a portion of the seal being located between the showerhead body and the cavitation member, another portion of the seal being located between the shower plate and the cavitation member.

In some optional embodiments of the invention, the accommodating chamber is internally provided with a water inlet channel separated from the dissolved air chamber, the water inlet channel is provided with the water inlet and the outlet, and the flow area of the cavitation member is smaller than that of the outlet.

In some optional embodiments of the invention, an air inlet hole adapted to communicate the air-dissolving chamber with an external environment is formed on a wall of the air-dissolving chamber, the air inlet hole having an open state and a closed state, the air inlet hole being in the closed state when the spraying device sprays.

A washing system according to an embodiment of the second aspect of the invention, comprising: the spray device according to the above-described first aspect of the present invention.

According to the washing system provided by the embodiment of the invention, the spray device is arranged, so that the spray head can be more conveniently assembled.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a spray device according to some embodiments of the present invention;

FIG. 2 is a front view of the spray assembly of FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view at H in FIG. 3;

FIG. 5 is a perspective view of a seal of the sprinkler of FIG. 1;

FIG. 6 is a front view of the seal of FIG. 5;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a partial block diagram of the spray assembly of FIG. 1;

FIG. 9 is a front view of a portion of the spray assembly of FIG. 8;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9;

FIG. 11 is an enlarged view at K of FIG. 10;

FIG. 12 is a perspective view of a cavitation member of the spray device of FIG. 1;

FIG. 13 is a front view of the cavitation member of FIG. 12;

FIG. 14 is a cross-sectional view taken along line D-D of FIG. 13;

FIG. 15 is a cross-sectional view taken along line E-E of FIG. 13;

FIG. 16 is a perspective view of a shower plate of the shower arrangement of FIG. 1;

FIG. 17 is a front view of the shower plate of FIG. 16;

FIG. 18 is a cross-sectional view taken along line F-F of FIG. 17;

FIG. 19 is a perspective view of the handle body of the spray device of FIG. 1;

FIG. 20 is a front view of the handle body of FIG. 19;

FIG. 21 is a top view of the handle body of FIG. 19;

FIG. 22 is a sectional view taken along line G-G of FIG. 21;

FIG. 23 is a perspective view of a handle housing of the spray assembly of FIG. 1;

FIG. 24 is a front view of the handle housing of FIG. 23;

FIG. 25 is a top view of the handle housing of FIG. 23;

fig. 26 is a sectional view taken along line J-J in fig. 25.

Reference numerals:

a spray device 100;

a shower head 1; a shower head body 11; a showerhead housing 111; air intake holes 1111; an intake passage 1112; a communication port 1113; the second positioning boss 1114; a shower head cover 112; a cover 1121; a stopper 1122; a shower plate 12; a plate body 121; a spray hole 1211; a positioning notch 1212; a fitting portion 122; a second seal projection 13; a gas-dissolving cavity 14; a water outlet cavity 15; a water inlet passage 16; a water inlet section 161; a water inlet 1611; a pressurizing section 162; an outlet 1621; a guide structure 17; a guide hole 171;

a cavitation member 2; a mounting plate 21; the accommodation notch 211; a first rib 212; a second rib 213; a cavitation column 22; a cavitation channel 221; a tapered section 2211; a cavitation inlet 22111; throat section 2212; divergent section 2213; a cavitation outlet 22131;

a pressurizing plate 3; a connecting portion 31; a first positioning projection 311; a pressurizing part 32;

a seal 4; an accommodating groove 40; a first seal section 41; a second seal segment 42; a first sealing protrusion 421; a third seal segment 43;

an intake valve 5; a spool 51; a positioning groove 511; a valve plate 52; a seal gasket 53; a sealing portion 531; a positioning portion 532; an elastic member 54; a fixed bracket 55; a holder body 551; positioning bumps 552;

a handle 6; a handle body 61; a water flow passage 610; the first reinforcing ribs 611; a second reinforcing bead 612; a quick coupling 613; a card slot 6131; a first step surface 6132; a threaded joint 614; a second step surface 6141; a handle housing 62; a flange 621;

and a seal ring 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A spray device 100 according to an embodiment of the present invention is described below with reference to fig. 1-26. The spray device 100 may be used in washing systems related to washing, such as shower systems, dish washers, washing machines, steam mops, fruit and vegetable washers, and the like.

As shown in fig. 1 to 4 and 16 to 18, a spray device 100 according to an embodiment of the first aspect of the present invention includes: a shower head 1.

A containing cavity is defined in the spray header 1, the spray header 1 is provided with a water inlet 1611 and a water outlet, and water can enter the containing cavity from the water inlet 1611 and can be sprayed out from the water outlet. The shower head 1 includes a shower head body 11 and a shower plate 12, the shower plate 12 is disposed at an open end of the shower head body 11, the shower head body 11 includes a shower head case 111 and a shower head cover 112, the shower head case 111 and the shower head cover 112 may be connected, a water inlet 1611 is formed on the shower head case 111, the shower plate 12 is disposed in the shower head cover 112 and located at an opening side of the shower head case 111, and the water outlet includes a plurality of shower holes 1211 formed on the shower plate 12. Water can enter the containing cavity through the water inlet 1611 and finally be sprayed out through the plurality of spraying holes 1211 on the spraying plate 12, so that the body, articles (such as clothes, tableware, fruits and vegetables and the like) and the like can be cleaned.

Through setting up shower plate 12 in shower head cover 112, when assembling shower head 1, can press shower plate 12 on shower head shell 111, then connect shower head cover 112 on shower head shell 111, make shower plate 12 hold in shower head cover 112 and make shower plate 12 compress tightly in shower head cover 112 through the combined action between shower head cover 112 and the shower head shell 111, make things convenient for the installation of shower plate 12 to be fixed, thereby make the assembly of shower head 1 more convenient.

Optionally, shower head shell 111 and shower head cover 112 can be threaded connection, with adopting threaded connection mode be assembled between shower head cover 112 and shower head shell 111, make the dismouting between shower head cover 112 and the shower head shell 111 more convenient, and the fault-tolerance of screw-thread fastening mode is bigger, guarantee that can be better is sealed, can provide stronger fastening force and overcome the high pressure that holds the intracavity and produce, thereby it is stronger to make a plurality of spray holes 1211 on the shower plate 12 spout rivers impact force, thereby it is clean, the dirt-removing power is stronger.

According to the shower device 100 of the embodiment of the invention, the shower plate 12 is arranged in the shower head cover 112, when the shower head 1 is assembled, the shower plate 12 can be pressed on the shower head shell 111, and then the shower head cover 112 is connected on the shower head shell 111, so that the shower plate 12 is convenient to mount and fix, and the shower head 1 is more convenient to assemble.

In some embodiments of the present invention, referring to fig. 3 and 4, the shower head cover 112 includes a cylindrical cover body 1121 and a stopper portion 1122 connected to an end of the cover body 1121 remote from the shower head case 111, the stopper portion 1122 is located on an inner circumferential side of the cover body 1121, the stopper portion 1122 may extend in a circumferential direction of the cover body 1121 and be formed in a ring shape, the cover body 1121 is connected to the shower head case 111 (for example, the cover body 1121 is screwed to the shower head case 111), and the shower plate 12 abuts against or is connected to the stopper portion 1122. By providing the shower head cover 112 with the above-mentioned two parts including the cover body 1121 and the stopper 1122, on one hand, the connection between the cover body 1121 and the shower head case 111 can be achieved, and on the other hand, the stopper 1122 can limit and fix the shower plate 12 provided in the shower head cover 112, thereby preventing the shower plate 12 from falling off from the shower head cover 112.

In a further embodiment of the present invention, referring to fig. 3-4 and fig. 16-18, the shower plate 12 includes a plate body 121 and a fitting portion 122 formed on an outer peripheral edge of the plate body 121, the fitting portion 122 is located on a side of the plate body 121 adjacent to the shower head housing 111, the fitting portion 122 is fitted with the cover body 1121, a plurality of shower holes 1211 are formed on the plate body 121, and the plate body 121 abuts against or is connected to the stopper portion 1122. By providing the shower plate 12 with the plate body 121 and the fitting portion 122, the fitting portion 122 of the shower plate 12 is fitted to the cover 1121 of the shower head cover 112, and the plate body 121 of the shower plate 12 is fitted to the stopper portion 1122 of the shower head cover 112, so that the fitting area between the shower plate 12 and the shower head cover 112 can be increased, and the shower plate 12 can be more reliably and stably mounted and fixed in the shower head cover 112.

Optionally, referring to fig. 4 and 18, a positioning notch 1212 is formed in the plate body 121, the positioning notch 1212 may penetrate through an outer peripheral surface of the plate body 121 and a surface of the plate body 121 adjacent to the stopper 1122, the stopper 1122 is matched with the positioning notch 1212, a free end of the stopper 1122 abuts against a side wall of the positioning notch 1212, for example, the positioning notch 1212 may extend along a circumferential direction of the plate body 121 and be annular, the stopper 1122 may extend along a circumferential direction of the cover body 1121 and be annular, and an inner peripheral wall of the stopper 1122 may abut against a circumferential side wall of the positioning notch 1212. Thus, the free end of the stopper 1122 abuts against the side wall of the positioning notch 1212, so that the shower plate 12 and the shower head cover 112 can be positioned with respect to each other, and the shower plate 12 can be more reliably positioned in the shower head cover.

According to some embodiments of the present invention, referring to fig. 3, 12-15, the spraying device 100 includes a cavitation member 2 for generating micro-bubbles, the cavitation member 2 is disposed in the containing chamber and located between the water inlet 1611 and the water outlet, a gas dissolving chamber 14 communicated with the water inlet 1611 is defined between the cavitation member 2 and the shower head 1, the gas dissolving chamber 14 is located on one side of the cavitation member 2 adjacent to the water inlet 1611, and a cavitation channel 221 communicating the gas dissolving chamber 14 and the water outlet is formed on the cavitation member 2. A water outlet cavity 15 is defined between the cavitation piece 2 and the spray plate 12, the cavitation channel 221 is communicated with the dissolved air cavity 14 and the water outlet cavity 15, and the water outlet cavity 15 is communicated with the water outlet. Water can enter the dissolved air cavity 14 through the water inlet 1611, the air in the dissolved air cavity 14 is excited and dissolved, hundreds of millions of micro-bubble water can be formed through the cavitation channel 221 of the cavitation part 2 under high pressure, a large amount of micro-bubble water formed through the cavitation channel 221 of the cavitation part 2 flows into the water outlet cavity 15, and finally is sprayed out through the plurality of spraying holes 1211 on the spraying plate 12, so that the body and articles (such as clothes, tableware, fruits and vegetables) can be cleaned, and the like.

When the spraying device 100 is used, water can enter the gas dissolving cavity 14 through the water inlet 1611, as more air is contained in the gas dissolving cavity 14, water with higher pressure entering from the water inlet 1611 enters the gas dissolving cavity 14, the air in the gas dissolving cavity 14 is excited to dissolve, the flow area of the cavitation channel 221 on the cavitation part 2 is relatively smaller, so that higher pressure can be generated in the gas dissolving cavity 14, hundreds of millions of micro-nano bubble water can be formed through the cavitation channel 221 of the cavitation part 2 under high pressure, micro-bubble water is formed in the process that water containing high-concentration air solute passes through the cavitation channel 221 of the cavitation part 2, the water flow discharged through the cavitation channel 221 of the cavitation part 2 contains a large number of micro-bubbles, and is finally sprayed out through the plurality of spraying holes 1211 on the spraying plate 12, so that the body, articles (such as clothes, tableware, fruits and vegetables) and the like can be cleaned.

Through the cavitation piece 2 that is used for producing the microbubble that holds the intracavity setting at shower head 1, rivers not only can realize the function that sprays through the micro-nano bubble water that cavitation piece 2 produced, have stronger clean ability and dirt-removing power simultaneously. The micro-nano bubble water can realize mechanical washing, and when a large amount of micro-nano bubble water is in contact with the surface of a body or an article, bubbles collapse to generate huge energy to take away stains; the micro-nano bubble water can also realize chemical washing and decontamination, and when a large amount of micro-nano bubble water is contacted with the surface of a body or an article, the micro-nano bubbles generate free radicals to attack stains, so that the stains are decomposed and fall off.

Optionally, the shower head cover 111 and the shower head cover 112 may be screwed, and the shower head cover 112 and the shower head cover 111 are assembled and connected by a screwing method, so that the shower head cover 112 and the shower head cover 111 are more convenient to assemble and disassemble, and the screwing fastening method has greater fault tolerance, can better ensure sealing, can provide stronger fastening force to overcome high pressure generated in the dissolved air cavity 14, and provide a good output environment for the generation of micro bubbles. In addition, through setting up shower plate 12 in the shower cover, when assembling shower head 1, can press shower plate 12 on shower head shell 111, then with shower head cover 112 threaded connection on shower head shell 111, utilize the screw thread to screw up, make shower plate 12 hold in shower head cover 112 and make shower plate 12 compress tightly in shower head cover 112 through the combined action between shower head cover 112 and the shower head shell 111, make things convenient for the installation of shower plate 12 to fix, and can guarantee better leakproofness.

For example, when the spraying device 100 is used in a shower system, the spraying device 100 may be connected to a water heater through a pipeline, warm water of the water heater enters the dissolved air cavity 14 of the shower head 1 through a water inlet 1611 through the pipeline connected between the water heater and the spraying device 100, and is excited in the dissolved air cavity 14 to dissolve air in the dissolved air cavity 14, so that millions of micro-nano bubble water may be formed through the cavitation channel 221 of the cavitation member 2 under high pressure, and finally, the bubble water is sprayed out through the plurality of spraying holes 1211 on the spraying plate 12 to clean the body, and a large amount of micro-nano micro-bubble water contacts with the surface of the body, so that the bubble collapses to generate huge energy to take away the stain, and the bubble generates free radical to attack to decompose and drop the stain, thereby achieving the spraying function and improving the cleaning and decontamination capability of the spraying device 100, for example, the capability of cleaning the skin.

According to some embodiments of the invention, referring to fig. 3, the cavitation member 2 is adjacent to the water outlet. From this, can be so that inject the great dissolved air chamber 14 of volume between cavitation spare 2 and the shower head 1, thereby make dissolved air chamber 14 can hold more air, and make the distance between cavitation spare 2 and the water inlet 1611 great, rivers that get into in dissolved air chamber 14 through water inlet 1611 can fully mix with the air like this, make more air dissolve in rivers, the rivers that dissolve and have a large amount of air are through the cavitation passageway 221 of cavitation spare 2, can form the volume littleer, the microbubble of the greater quantity, thereby can further improve cleanness, dirt-removing power.

According to some embodiments of the present invention, referring to fig. 12-15, the cavitation channel 221 is formed as a venturi channel, and in the process that the water flow with a large amount of air flowing through the cavitation channel 221, because the flow area of the cavitation channel 221 decreases first and then increases, a great pressure difference is formed at two ends of the cavitation channel 221, the pressure at the cavitation inlet 22111 of the cavitation channel 221 is large, and the pressure at the cavitation outlet 22131 of the cavitation channel 221 is small, which is equivalent to squeezing the water flow with a large cross section into the cavitation channel 221 with a small cross section, the water flow velocity entering the cavitation channel 221 under high pressure will rise rapidly, and in each cavitation channel 221, because the flow area of the cavitation channel 221 decreases first and then increases, the flow velocity and pressure of the water flow change accordingly, the air solubility in the water will decrease, and thus the air will be separated out in the form of micro bubbles, and a large amount of nano-scale micro bubble water can be formed. Therefore, by setting the cavitation channel 221 as a venturi channel, the cavitation effect of the cavitation channel 221 can be further improved, and microbubbles with smaller volume and larger number can be formed, so that the cleaning and decontamination capabilities can be further improved.

For example, in the example of fig. 15, the cavitation channel 221 is a venturi channel, the cavitation channel 221 comprises a tapered section 2211, a throat section 2212 and a diverging section 2213 connected in sequence, the tapered section 2211 has a cavitation inlet 22111, the diverging section 2213 has a cavitation outlet 22131, the flow area of the tapered section 2211 gradually decreases in the direction from the cavitation inlet 22111 to the cavitation outlet 22131, and the flow area of the diverging section 2213 gradually increases in the direction from the cavitation inlet 22111 to the cavitation outlet 22131, wherein the flow area of the throat section 2212 is the smallest. Wherein, the diameter D1 of the cavitation inlet 22111 can be in the range of 1.5-2.5mm, the diameter D2 of the throat section 2212 can be in the range of 0.5-1.2mm, and the diameter D3 of the cavitation inlet 22111 can be in the range of 1.2-2.0mm, so that the cavitation piece 2 not only can produce micro-bubble water with rich micro-bubble content, but also the flow velocity of water flow in the cavitation piece 2 is moderate, and the blocking risk of the cavitation channel 221 can be reduced.

It is to be understood that the term "plurality" as used herein means two or more.

According to some embodiments of the present invention, referring to fig. 12-15, the cavitation channels 221 are a plurality of spaced apart. This improves the foam generating ability of the cavitation member 2, and a large amount of microbubbles can be formed per unit time. For example, the total number of the cavitation channels 221 may be 7 to 12, and the cavitation channels 221 are the key for generating the micro-bubbles in the shower apparatus 100. The number of the cavitation channels 221 is too large, the pressure of the gas dissolving cavity 14 is too small, and the condition of generating micro-nano bubbles is not enough; the number of the cavitation channels 221 is too small, the effect of generating micro-nano bubbles is good, but the water outlet is small, the requirement of washing such as shower cannot be met, and the condition of generating micro bubbles and the requirement of washing such as shower can be met simultaneously by setting the number of the cavitation channels 221 to be 7-12.

According to some embodiments of the present invention, referring to fig. 3 and 12-15, the cavitation channel 221 is disposed adjacent to the bottom of the cavitation member 2. The water flow entering the air dissolving cavity 14 through the water inlet 1611 is easily concentrated at the bottom of the air dissolving cavity 14 under the action of gravity, the cavitation channel 221 is arranged close to the bottom of the cavitation member 2, so that the cavitation channel 221 is close to the bottom of the air dissolving cavity 14, the water flow dissolved with a large amount of air and accumulated at the bottom of the air dissolving cavity 14 can be subjected to cavitation through the cavitation channel 221 to form micro-bubble water, even when the water amount in the air dissolving cavity 14 is small, the water flow dissolved with a large amount of air is still accumulated at the bottom of the air dissolving cavity 14, and therefore the micro-bubble water can be discharged through the cavitation channel 221 to form no matter how fast the water flow is or the water amount accumulated in the air dissolving cavity 14, and the residual water amount in the air dissolving cavity 14 can be reduced.

According to some embodiments of the present invention, referring to fig. 3 and 12 to 15, the cavitation member 2 includes a mounting plate 21 and a cavitation column 22 provided on the mounting plate 21, the mounting plate 21 may be connected to an inner wall of the receiving chamber, and a cavitation passage 221 is formed on the cavitation column 22. Therefore, the cavitation piece 2 is simple in structure, the cavitation channel 221 is convenient to process and form, and meanwhile the cavitation piece 2 is convenient to install and fix. In addition, under the condition that the specification and the size of the mounting plate 21 are the same, the height of the cavitation column 22 can be changed to change the extending length of the cavitation channel 221, so that the cavitation member 2 with different cavitation capabilities can be obtained under the condition of saving materials by changing the height of the cavitation column 22, the size structure of the cavitation channel 221 in the cavitation column 22 and the like.

Alternatively, referring to fig. 12 and 13, the cavitation pillars 22 are plural, and each cavitation pillar 22 is formed with plural cavitation channels 221. This improves the foam generating ability of the cavitation member 2, and a large amount of microbubbles can be formed per unit time. Optionally, at least one cavitation column 22 is disposed adjacent to the bottom of the mounting plate 21, for example, one of the cavitation columns 22 is disposed adjacent to the bottom of the mounting plate 21, or each cavitation column 22 is disposed adjacent to the bottom of the mounting plate 21. Therefore, the cavitation channel 221 is close to the bottom of the cavitation member 2, water flow entering the gas dissolving cavity 14 through the water inlet 1611 is easy to concentrate at the bottom of the gas dissolving cavity 14 under the action of gravity, and micro-bubble water can be discharged through the cavitation channel 221 to form no matter how fast the water flow is or how much water is accumulated in the gas dissolving cavity 14, and the residual water in the gas dissolving cavity 14 can be reduced.

Optionally, referring to fig. 3 and 12-15, cavitation posts 22 extend into the plenum chamber 14. The cavitation channel 221 is formed in the cavitation column 22, and by extending the cavitation column 22 into the gas dissolving cavity 14, the extending length of the cavitation channel 221 can be increased, so that the cavitation effect can be improved, and the space of the gas dissolving cavity 14 can be utilized, so that a part of the cavitation column 22 is accommodated in the gas dissolving cavity 14, and the entire structure of the shower apparatus 100 is compact.

Optionally, the mounting plate 21 is adjacent the water outlet. From this, can be so that inject the great dissolved air chamber 14 of volume between cavitation spare 2 and the shower head 1, thereby make dissolved air chamber 14 can hold more air, and make the distance between cavitation spare 2 and the water inlet 1611 great, rivers that get into in dissolved air chamber 14 through water inlet 1611 can fully mix with the air like this, make more air dissolve in rivers, the rivers that dissolve and have a large amount of air are through the cavitation passageway 221 of cavitation spare 2, can form the volume littleer, the microbubble of the greater quantity, thereby can further improve cleanness, dirt-removing power.

Alternatively, the cavitation member 2 may be an integrally formed member. Therefore, the processing and forming process of the cavitation piece 2 is simple, the manufacturing and forming are convenient, the assembling procedures of the cavitation column 22 and the mounting plate 21 are reduced, and the connecting strength between the cavitation column 22 and the mounting plate 21 is high.

Alternatively, the cavitation column 22 and the mounting plate 21 may be formed separately, the cavitation column 22 and the mounting plate 21 may be assembled after being formed separately, and the cavitation column 22 and the mounting plate 21 may be bonded, welded, clamped, or connected by a fastener.

In some alternative embodiments of the present invention, referring to fig. 12 to 15, the mounting plate 21 of the cavitation member 2 is formed with a plurality of first ribs 212 extending in the radial direction, the plurality of first ribs 212 are arranged at intervals along the circumferential direction of the mounting plate 21, and the cavitation pillars 22 are located between two adjacent first ribs 212. Cavitation piece 2 bears great water pressure, through set up above-mentioned a plurality of ribs 212 on mounting panel 21, can improve mounting panel 21's structural strength, sets up cavitation post 22 between two adjacent first ribs 212 simultaneously for cavitation piece 2's structural layout is reasonable, and structural strength is whole comparatively even.

Further, referring to fig. 12 to 15, at least one second rib 213 is formed on the mounting plate 21 of the cavitation member 2, the second rib 213 extends along the circumferential direction of the mounting plate 21, and at least one first rib 212 is connected to the second rib 213. Therefore, the structural strength of the mounting plate 21 can be further enhanced and each part of the mounting plate 21 has higher and more uniform structural strength by arranging the second ribs 213 and connecting at least one first rib 212 with the second ribs 213.

For example, in the example of fig. 3 and 12-15, the cavitation member 2 includes the above-described mounting plate 21 and cavitation column 22, the mounting plate 21 being disposed adjacent the water outlet, the cavitation column 22 extending into the plenum chamber 14. The mounting plate 21 is provided with the first ribs 212 and the second ribs 213, the first ribs 212 are arranged along the circumferential direction of the mounting plate 21 at intervals, the second ribs 213 are arranged along the radial direction of the mounting plate 21 at intervals, and each first rib 212 is connected with the first ribs 212. The number of the cavitation columns 22 is two, each cavitation column 22 is located between two adjacent first ribs 212 and the second rib 213 located on the outermost side in the radial direction, the two cavitation columns 22 are both arranged adjacent to the bottom of the mounting

plate

21, 5 cavitation channels 221 are formed on each cavitation column 22, the cavitation channels 221 are arranged adjacent to the centers of the cavitation columns 22, and each cavitation channel 221 is formed into a venturi channel. The water flow entering the air dissolving cavity 14 through the water inlet 1611 excites the air in the air dissolving cavity 14, then flows towards the bottom of the air dissolving cavity 14 under the action of gravity, and then flows through the cavitation channel 221 of the cavitation part 2 to be cavitated to form a large number of micro bubbles, and finally the water outlet is sprayed out to be sprayed and cleaned.

According to some embodiments of the present invention, referring to fig. 3-7, the spray device 100 includes a sealing assembly provided between the cavitation member 2 and the inner wall of the receiving chamber. Through set up seal assembly between the inner wall at space spare and holding chamber, can be so that the dissolved air cavity 14 of injecing between cavitation spare 2 and shower head 1 has better seal, thereby can form higher pressure in the assurance dissolved air cavity 14, thereby guarantee that the both ends of cavitation passageway 221 have great pressure differential, can strengthen the cavitation effect that water flows through cavitation passageway 221, the little bubble water that the formation volume is more and the volume is littleer, and the impact force of little bubble water is also stronger, further promote clean, the decontamination effect. Wherein, the sealing assembly can only comprise one sealing element 4, and the sealing assembly can also comprise a plurality of sealing elements 4.

In some alternative embodiments of the present invention, referring to fig. 3 to 4, the sealing assembly is sleeved on the cavitation member 2, and the sealing assembly is in interference fit with the cavitation member 2. Through establishing sealing assembly cover on cavitation piece 2, make things convenient for sealing assembly's installation fixed to make sealing assembly and cavitation piece 2 interference fit, can make sealing member 4 fix at cavitation piece 2 more steadily, and can guarantee sealed effect.

In some alternative embodiments of the invention, referring to fig. 3-7, the seal assembly comprises a seal member 4, the seal member 4 defining an annular receiving groove 40 therein, the outer peripheral edge of the cavitation member 2 being received in the receiving groove 40. Through making to form annular holding tank 40 in the sealing member 4 for the periphery of cavitation spare 2 is along the cooperation in this holding tank 40, can increase the cooperation area of sealing member 4 and cavitation spare 2, improves sealing member 4 and cavitation spare 2 complex stability, and can increase sealed length and sealing area, reinforcing sealed effect.

Alternatively, referring to fig. 5, the cavitation member 2 has a receiving notch 211 formed on an outer peripheral edge thereof, and a portion of the sealing member 4 is received in the receiving notch 211. On the basis of the periphery of cavitation spare 2 along the holding tank 40 of holding in sealing member 4, further make partly holding in the holding breach 211 on cavitation spare 2 of sealing member 4 for cavitation spare 2 and sealing member 4 gomphosis each other improve the cooperation area of sealing member 4 and cavitation spare 2, thereby can improve the stability of cooperation between sealing member 4 and the cavitation spare 2, also can promote sealed effect simultaneously.

Alternatively, referring to fig. 5 and 7, the radial section of the seal member 4 is U-shaped, the cross-section of the receiving groove 40 defined in the seal member 4 is U-shaped, and the radial section of the seal member 4 is perpendicular to the circumferential tangent of the seal member 4. Set up to the U-shaped through the radial cross section with sealing member 4, both conveniently form above-mentioned holding tank 40 to can increase sealing length and seal area between sealing member 4 and the cavitation piece 2 and sealing length and seal area between sealing member 4 and the inner wall that holds the chamber, the trilateral sealed effect that all plays of sealing 4 inside and outside contact, can reach better sealed effect, and sealing member 4 of this form structure can reduce seal structure's use quantity, it is also more convenient to install.

In some alternative embodiments of the present invention, referring to fig. 4 to 7, the surface of the sealing assembly facing the inner wall of the receiving cavity is formed with a first sealing protrusion 421 having elasticity, for example, the surface of the sealing assembly facing the inner wall of the receiving cavity may be formed with a plurality of first sealing protrusions 421, and the first sealing protrusions 421 abut against the inner wall of the receiving cavity. From this, when installing seal assembly between cavitation piece 2 and the inner wall that holds the chamber, hold the first sealed protruding 421 on the inner wall extrusion seal assembly in chamber for elastic deformation takes place for first sealed protruding 421, thereby makes seal assembly can with the inner wall in close contact with that holds the chamber, further promotes sealed effect. Moreover, when the sealing assembly is provided with the plurality of first sealing bulges 421, a labyrinth seal can be formed, so that the sealing effect is better improved.

In some alternative embodiments of the present invention, referring to fig. 4-7, the inner wall of the accommodating cavity is formed with a second sealing protrusion 13, the second sealing protrusion 13 abuts against a sealing component, the sealing component may have elasticity, for example, the sealing component may be a rubber or silicone member. From this, when installing seal assembly between cavitation spare 2 and the inner wall that holds the chamber, the second on the inner wall that holds the chamber seals protruding 13 can extrude seal assembly for seal assembly can with the inner wall in close contact with that holds the chamber, further promotes sealed effect. And, when set up a plurality of second seal bulges 13 on the inner wall of holding the chamber, can also form labyrinth seal, promote sealed effect better.

In some alternative embodiments of the present invention, referring to fig. 4 to 7, a surface of the sealing assembly facing the inner wall of the receiving cavity is formed with a plurality of the above-mentioned first sealing protrusions 421, and the inner wall of the receiving cavity is formed with a plurality of the second sealing protrusions 13, thereby better enhancing the sealing effect.

For example, in some embodiments of the present invention, referring to fig. 4-7, the sealing assembly includes a sealing member 4, the sealing member 4 defines a circular receiving groove 40 therein, the outer periphery of the cavitation element 2 is received in the receiving groove 40, the sealing member 4 includes a first sealing section 41, a second sealing section 42 and a third sealing section 43 which are connected in sequence, the second sealing section 42 extends along the axial direction of the sealing member 4, the first sealing section 41 and the second sealing section 42 have an angle therebetween (e.g., the first sealing section 41 and the second sealing section 42 are vertically arranged), the second sealing section 42 and the third sealing section 43 have an angle therebetween (e.g., the second sealing section 42 and the third sealing section 43 are vertically arranged), the radial cross section of the sealing member 4 is U-shaped, and the second sealing section 42 is formed with a first sealing protrusion 421. Thereby, the installation and fixation of the sealing member 4 are facilitated, and the sealing effect can be improved by providing the first sealing protrusion 421 on the second sealing section 42. Further, a second sealing bulge 13 is formed on the inner wall of the accommodating cavity, and the second sealing bulge 13 is abutted with the first sealing section 41 and the third sealing section 43. Through the first sealed protruding 421 on the second seal segment 42 with hold the butt of intracavity wall to the second sealed protruding 13 on the inner wall that combines to hold the chamber and the butt of first seal segment 41 and third seal segment 43, the trilateral sealed effect that all plays of the inside and outside contact of sealing member 4 can reach better sealed effect.

In some alternative embodiments of the present invention, referring to fig. 2-7 and 16-18, the showerhead 1 may include: the shower head comprises a shower head body 11 and a shower plate 12, wherein the shower plate 12 is arranged at the open end of the shower head body 11, the water outlet comprises a plurality of shower holes 1211 formed in the shower plate 12, a water outlet cavity 15 is defined between the cavitation member 2 and the shower plate 12, the cavitation channel 221 is communicated with a gas dissolving cavity 14 and the water outlet cavity 15, the sealing assembly comprises a sealing member 4, one part of the sealing member 4 is positioned between the shower head body 11 and the cavitation member 2, and the other part of the sealing member 4 is positioned between the shower plate 12 and the cavitation member 2. Water can enter the dissolved air cavity 14 through the water inlet 1611, the air in the dissolved air cavity 14 is excited and dissolved, hundreds of millions of micro-bubble water can be formed through the cavitation channel 221 of the cavitation part 2 under high pressure, a large amount of micro-bubble water formed through the cavitation channel 221 of the cavitation part 2 flows into the water outlet cavity 15, and finally is sprayed out through the plurality of spraying holes 1211 on the spraying plate 12, so that the body and articles (such as clothes, tableware, fruits and vegetables) can be cleaned, and the like. And through a sealing member 4 that sets up, can be so that between cavitation spare 2 and the shower head body 11 and between cavitation spare 2 and the shower plate 12 sealed good to make the interior higher pressure that forms of dissolved air cavity 14, guarantee that the both ends of cavitation passageway 221 maintain great pressure differential, further promote the cavitation effect of rivers through cavitation passageway 221, form more and the little bubble water of volume littleer, and the impact force of little bubble water is also stronger, further promote clean, decontamination effect. In addition, the number of the seal members 4 can be reduced while ensuring the sealing effect.

In further alternative embodiments of the present invention, the showerhead 1 may include: the shower head comprises a shower head body 11 and a shower plate 12, wherein the shower plate 12 is arranged at the open end of the shower head body 11, the water outlet comprises a plurality of shower holes 1211 formed in the shower plate 12, a water outlet cavity 15 is defined between the cavitation member 2 and the shower plate 12, the cavitation channel 221 is communicated with a solution cavity 14 and the water outlet cavity 15, the sealing assembly comprises two sealing members 4, one of the two sealing members 4 is positioned between the shower head body 11 and the cavitation member 2, and the other of the two sealing members 4 is positioned between the shower plate 12 and the cavitation member 2. Water can enter the dissolved air cavity 14 through the water inlet 1611, the air in the dissolved air cavity 14 is excited and dissolved, hundreds of millions of micro-bubble water can be formed through the cavitation channel 221 of the cavitation part 2 under high pressure, a large amount of micro-bubble water formed through the cavitation channel 221 of the cavitation part 2 flows into the water outlet cavity 15, and finally is sprayed out through the plurality of spraying holes 1211 on the spraying plate 12, so that the body and articles (such as clothes, tableware, fruits and vegetables) can be cleaned, and the like. And through two sealing members 4 that set up, can be so that between cavitation piece 2 and the shower head body 11 and between cavitation piece 2 and the shower plate 12 sealed good to make and form higher pressure in the dissolved air chamber 14, guarantee that the both ends of cavitation passageway 221 maintain great pressure differential, further promote rivers through the cavitation effect of cavitation passageway 221, form more and the little bubble water that the volume is littleer, and the impact force of little bubble water is also stronger, further promote cleanness, decontamination effect.

In some embodiments of the present invention, referring to fig. 3-7 and 16-18, the shower apparatus 100 includes the above-described sealing member 4, the shower head 1 includes the above-described shower head body 11 and the shower plate 12, the shower head body 11 includes the above-described shower head housing 111 and the shower head cover 112, and the shower head housing 111 is screwed to the shower head cover 112. The seal member 4 is formed in a ring shape, the receiving groove 40 formed in the seal member 4 is formed in a ring shape, the radial section of the seal member 4 is U-shaped, and the receiving groove 40 defined in the seal member 4 is U-shaped in cross section. The sealing member 4 comprises a first sealing section 41, a second sealing section 42 and a third sealing section 43 which are connected in sequence along the axial direction of the sealing member 4, the second sealing section 42 extends along the axial direction of the sealing member 4, and the first sealing section 41 and the third sealing section 43 extend towards the direction adjacent to the center of the sealing member 4. The second sealing section 42 is formed with a plurality of first sealing protrusions 421, the plurality of first sealing protrusions 421 are arranged along the axial direction and the circumferential direction of the second sealing section 42, and the shower plate 12 and the shower head housing 111 are both formed with a plurality of second sealing protrusions 13.

In the process of assembling the spray device 100, the sealing element 4 can be sleeved on the cavitation element 2, then the cavitation element 2 sleeved with the sealing element 4 is installed in the spray header shell 111, so that the sealing element 4 is in contact with the inner wall of the spray header shell 111, then the spray header 12 is pressed on the sealing element 4, one part of the sealing element 4 is located between the spray header shell 111 and the cavitation element 2, the other part of the sealing element 4 is located between the spray header 12 and the cavitation element 2, finally the spray header cover 112 is installed on the spray header shell 111, the connection is achieved in a threaded connection mode, the screwing is achieved through threads, the first sealing bulge 421 of the second sealing section 42 is abutted against the spray header 12 and the spray header shell 111, the first sealing section 41 is abutted against the second sealing bulge 13 on the spray header shell 111, the third sealing section 43 is abutted against the second sealing bulge 13 on the spray header cover 112, so that the spray header shell 111, the spray header shell 12, the cavitation element 2 and the sealing element 4 are tightly matched and good sealing can be achieved.

According to some embodiments of the present invention, referring to fig. 3, 12-15, the accommodating chamber has a water inlet passage 16 therein spaced from the gas dissolving chamber 14, the water inlet passage 16 has a water inlet 1611 and an outlet 1621, the gas dissolving chamber 14 is located between the outlet 1621 and the water outlet, the outlet 1621 communicates the water inlet passage 16 and the gas dissolving chamber 14, and the flow area of the cavitation member 2 is smaller than the flow area of the outlet 1621. When there is one cavitation passage 221, the flow area of the cavitation member 2 is the flow area of the cavitation passage 221; when the cavitation channel 221 is plural, the flow area of the cavitation member 2 is the sum of the flow areas of all the cavitation channels 221, wherein the flow area of the cavitation channel 221 refers to the flow area at the position where the cross-sectional area of the cavitation channel 221 is smallest. Through being less than the flow area of export 1621 with the flow area of cavitation spare 2, can be so that produce higher pressure in the dissolved air chamber 14, further improve the both ends pressure differential of cavitation passageway 221, further promote the cavitation effect of rivers through cavitation passageway 221, form more and the little bubble water of volume littleer, and the impact force of little bubble water is also stronger, further promotes cleaning, decontamination effect. Wherein the pressure in the air dissolving chamber 14 may be less than the pressure of the tap water.

According to some embodiments of the present invention, referring to fig. 3, 8-10, 12-15, the accommodating chamber has a water inlet passage 16 therein, the water inlet passage 16 may be separated from the air dissolving chamber 14, the water inlet passage 16 has a water inlet 1611 and an outlet 1621, the air dissolving chamber 14 is located between the outlet 1621 and the water outlet, the outlet 1621 communicates the water inlet passage 16 and the air dissolving chamber 14, and a flow area of the outlet 1621 is smaller than a flow area of the water inlet 1611. Water can be introduced into the dissolved air cavity 14 through the arranged water inlet channel 16, and the flow area of the outlet 1621 is smaller than that of the water inlet 1611, so that the pressure of water flow which is sprayed out from the outlet 1621 of the water inlet channel 16 into the dissolved air cavity 14 through the water inlet channel 16 is larger, the water pressure of the water flow flowing into the dissolved air cavity 14 is increased, the high-pressure water flow which is sprayed out from the outlet 1621 of the water inlet channel 16 is more dispersed in the dissolved air cavity 14, the gas dissolving amount of the water flow in the dissolved air cavity 14 is increased, and the water flow in the dissolved air cavity 14 can generate more micro-bubbles after passing through the cavitation channel 221 of the cavitation member 2, so that the cleaning and decontamination capacity is enhanced.

In some alternative embodiments of the invention, referring to fig. 3, 8-10, the water inlet channel 16 comprises: a water inlet section 161 and a pressurizing section 162 located downstream of the water inlet section 161 (the pressurizing section 162 located downstream of the water inlet section 161 means that the pressurizing section 162 is located on the downstream side outside the entire water inlet section 161 in the flow direction of the water flow), a water inlet 1611 is formed in the water inlet section 161, an outlet 1621 is formed in the pressurizing section 162, and the flow area of the pressurizing section 162 is smaller than or equal to the flow area of the water inlet section 161. The flow area of the pressurizing section 162 refers to the flow area at the position where the cross-sectional area of the pressurizing section 162 is the smallest, and the flow area of the water inlet section 161 refers to the flow area at the position where the cross-sectional area of the water inlet section 161 is the smallest. Through setting up inhalant canal 16 to intake section 161 and pressurization section 162 including the area of circulation is different, can reduce the loss of flow when the great intake section 161 of area of circulation is flowed through to rivers, can the pressure boost acceleration rate when the less pressurization section 162 of area of circulation is flowed through to rivers, this setting both can reduce the loss of flow, and can make from export 1621 spun rivers pressure great and speed higher, the high-pressure high-speed rivers impact to the inner wall of gas dissolving chamber 14, be of value to increase gas dissolution volume, produce more microbubble, strengthen clean dirt-removing power.

It should be noted that, the case that the flow area of the pressurizing section 162 is equal to the flow area of the water inlet section 161 means: when the connection of the pressurizing section 162 and the water inlet section 161 has a common cross section, there is a case where the flow areas of the pressurizing section 162 and the water inlet section 161 at the common cross section are the same, and at this time, the flow area of the pressurizing section 162 and the flow area of the water inlet section 161 are both the flow areas at the common cross section, for example, the flow area of the pressurizing section 162 in the extending direction thereof is constant and the flow area of the water inlet section 161 is gradually reduced in the direction from the water inlet section 161 to the pressurizing section 162.

Alternatively, referring to fig. 8-10, the cross-section of the pressing section 162 is elongated, for example, the cross-section of the pressing section 162 may be elongated rectangular. Thus, by providing the cross section of the pressurizing section 162 as a long strip, it is possible to achieve the pressurizing acceleration effect of the water flow and to make the structure of the pressurizing section 162 simple. In which the width direction of the cross section of the pressurizing section 162 may be substantially parallel to the central axis direction of the shower head 1, so that the water flow jetted from the outlet 1621 may collide with the inner wall of the air dissolving chamber 14 in a wider area, which is further beneficial to increase the amount of dissolved air.

Wherein the width of the cross section of the pressing section 162 is not more than 2.5mm. Therefore, the width of the pressurizing section 162 is smaller, the pressurizing section 162 has a better squeezing effect on water flow, the impact effect of the water flow jetted from the outlet 1621 impacting the inner wall in the gas dissolving cavity 14 is better, and the gas dissolving amount of the water flow in the gas dissolving cavity 14 is more effectively increased.

Wherein the length of the cross section of the pressing section 162 ranges from 8 to 13mm, for example, the length of the cross section of the pressing section 162 may be 10mm. Therefore, the pressurizing effect of the pressurizing section 162 can be ensured, and the water flow sprayed from the outlet 1621 can be wider, and can collide with the inner wall with a larger area in the dissolved air cavity 14, which is further beneficial to increasing the dissolved air amount.

Alternatively, referring to fig. 8-10, the cross-section of the water inlet section 161 is circular. Therefore, the flow loss of the water flow can be further reduced in the process of flowing through the water inlet section 161, so that the water flow in the water inlet section 161 is smoother.

In some alternative embodiments of the present invention, referring to fig. 8-10, a spray device 100 includes: the pressurizing plate 3, the pressurizing plate 3 is arranged in the containing cavity, and the pressurizing plate 3 and the shower head 1 jointly define a water inlet channel 16. From this, through the pressure plate 3 that sets up, intake passage 16 can conveniently be formed to can change intake passage 16's size, shape and structure etc. through size, shape, the structure etc. that changes pressure plate 3, thereby under the condition that shower head 1 specification is the same, through adopting the pressure plate 3 of different specification structures, thereby realize the intake passage 16 of different pressurization effects, practice thrift the material, reduce cost.

Wherein, the pressure plate 3 can be connected with the shower head 1 hot melt, makes things convenient for the installation of pressure plate 3 to fix in the holding cavity of shower head 1 to can guarantee the leakproofness of joint strength and connection. The pressurizing plate 3 and the spray header 1 can also be connected by clamping, fastening, bonding and other connection modes.

In some embodiments of the invention, with reference to fig. 8-10, the compression plate 3 comprises: connecting portion 31 and the pressurization portion 32 that link to each other, have the contained angle between connecting portion 31 and the pressurization portion 32, inject pressurization section 162 between pressurization portion 32 and the inner wall that holds the chamber, the one end of keeping away from pressurization portion 32 of connecting portion 31 is formed with first location arch 311, is formed with second location arch 1114 on the inner wall that holds the chamber, and first location arch 311 is located the one side that is close to the delivery port of second location arch 1114, and first location arch 311 links to each other with second location arch 1114. Thus, by providing the pressing plate 3 as two parts of the connecting portion 31 and the pressing portion 32, both the connection fixation of the pressing plate 3 to the shower head 1 and the formation of the pressing section 162 are facilitated. And, through setting up the first location arch 311 on connecting portion 31 and setting up the second location arch 1114 on the inner wall that holds the chamber, when installing the increased pressure plate 3 in shower head 1, through the cooperation of the first location arch 311 on the increased pressure plate 3 and the second location arch 1114 on the shower head 1, can carry out preliminary installation location to increased pressure plate 3, then connect the increased pressure plate 3 through modes such as welded connection, fastener connection and fix in holding the intracavity.

In other embodiments of the present invention, the outlet end of the inlet passage 16 is covered with an outlet plate, and the outlet 1621 is formed on the outlet plate, and the flow area of the inlet passage 16 is constant in the extending direction of the inlet passage 16. This arrangement also makes it possible to make the pressure and speed of the water flow ejected from the outlet 1621 greater, and makes the structure of the water inlet passage 16 simple. The outlet 1621 may be a hole formed on the water outlet plate, and the outlet 1621 may also include a plurality of water outlet holes formed on the water outlet plate.

According to some embodiments of the present invention, the walls of the air plenum chamber 14 are formed with air intake holes 1111 adapted to communicate the air plenum chamber 14 with the external environment. In the using process of the spraying device 100, the air amount in the air dissolving cavity 14 is continuously reduced, and the air inlet 1111 is arranged on the wall of the air dissolving cavity 14, so that the air can be conveniently supplied to the air dissolving cavity 14, and the cruising ability of micro-bubble generation is ensured.

Optionally, the air inlet 1111 and the water outlet may be located on two opposite side walls of the accommodating cavity, and when the water inlet channel 16 is formed in the accommodating cavity, the air inlet 1111 may be adjacent to the outlet 1621 of the water inlet channel 16, so that the air inlet 1111, the outlet and the outlet 1621 of the water inlet channel 16 are reasonably arranged and have a compact structure.

In some embodiments of the present invention, referring to fig. 3 and 10, the air inlet 1111 may have an open state and a closed state, and when the spraying device 100 sprays, the air inlet 1111 may be in the closed state, so that when the spraying device 100 sprays, the entire air-dissolving chamber 14 may be in a better closed state, so that the air-dissolving chamber 14 maintains and has a higher pressure, which is beneficial to ensuring a larger pressure difference between two ends of the cavitation channel 221 of the cavitation member 2, thereby being beneficial to ensuring a cavitation effect of the cavitation member 2, and further being beneficial to ensuring an effect of generating a large amount of micro bubble water. When air is required to be supplied, the spraying device 100 does not spray, no water enters the air dissolving cavity 14, the air inlet 1111 is in an open state, external air enters the air dissolving cavity 14 from the air inlet 1111, and residual water in the air dissolving cavity 14 is discharged from the cavitation channel 221 of the cavitation piece 2 under the action of atmospheric pressure, so that sufficient air can be supplemented into the air dissolving cavity 14 for subsequent continuous use. The air-replenishing operation can be performed on the air-dissolving cavity 14 before washing, and the air-replenishing operation can also be performed on the air-dissolving cavity 14 in the washing process.

Here, a valve structure may be provided at the intake port 1111 to open and close the intake port 1111, for example, an intake valve 5 or a scavenging valve may be provided at the intake port 1111, and the following description will be made by taking the example of providing the intake valve 5 at the intake port 1111.

In some embodiments of the present invention, referring to fig. 3, 10 and 11, an intake valve 5 for opening and closing the intake hole 1111 is provided at the intake hole 1111, and the intake valve 5 is movably provided at the intake hole 1111. The opening and closing of the air intake holes 1111 can be conveniently achieved by the movement of the intake valve 5. The movement of the intake valve 5 can be realized by manual pressing, and the movement of the intake valve 5 can also be realized by driving the intake valve 5 by a driving mechanism.

Wherein, the air inlet valve 5 can be movably arranged at the air inlet 1111 along the axial direction of the air inlet 1111, and the air inlet valve 5 can move along the axial direction of the air inlet 1111, so that the air inlet 1111 can be conveniently opened and closed, and the movement mode of the air inlet valve 5 is simple.

In some alternative embodiments of the invention, the intake valve 5 comprises: the air intake valve comprises a valve post 51 and a valve plate 52, wherein the valve post 51 is movably arranged at an air inlet 1111 along the axial direction of the air inlet 1111, an air intake channel 1112 is defined between the valve post 51 and the inner wall of the air inlet 1111, the air intake channel 1112 is provided with a communication port 1113 communicated with the air dissolving chamber 14, the valve plate 52 is arranged on the outer peripheral side of the valve post 51, the air intake valve 5 closes the air inlet 1111 when the valve plate 52 closes the communication port 1113, and the air intake valve 5 opens the air inlet 1111 when the valve plate 52 opens the communication port 1113. By the movement of the spool 51, the movement of the spool 51 can be effected, for example, by manually pressing the spool 51, and the movement of the valve plate 52 can be brought about, thereby opening and closing the communication port 1113 of the intake passage 1112 by the movement of the valve plate 52. When the valve plate 52 closes the communication port 1113 of the intake passage 1112, the outside air cannot enter the dissolved air chamber 14 through the intake passage 1112; when the valve plate 52 opens the communication port 1113, the external ventilation flows through the air intake passage 1112 and enters the air dissolving chamber 14 through the communication port 1113 in sequence, so that the air dissolving chamber 14 is replenished. The intake valve 5 is simple in structural design and convenient to operate.

In further alternative embodiments of the present invention, with reference to fig. 3, 10 and 11, the inlet valve 5 comprises: the valve rod 51 and the valve plate 52, the wall of the air dissolving cavity 14 is provided with the guide hole 171, the air inlet 1111 is positioned on the outer peripheral side of the guide hole 171, the guide structure 17 is defined between the air inlet 1111 and the guide hole 171, the valve rod 51 is movably arranged through the guide hole 171, the valve rod 51 is in clearance fit with the guide hole 171, the valve rod 51 can move, external air can not enter the air dissolving cavity 14 basically through the clearance between the valve rod 51 and the inner wall of the guide hole 171, in addition, the guide structure 17 can play a role of guiding the movement of the valve rod 51, and the guide structure 17 also has a certain supporting role on the valve rod 51. Wherein, the air inlet 1111 can be one, and the air inlet 1111 also can be a plurality of, and when the air inlet 1111 is a plurality of, a plurality of air inlet 1111 set up along the circumference interval of guiding hole 171. The air intake holes 1111 may be formed in a circular shape, an elliptical shape, a polygonal shape, etc., and the air intake holes 1111 may also be formed in an arc shape extending in the circumferential direction of the guide hole 171.

The intake hole 1111 internally defines an intake passage 1112, and the intake passage 1112 has a communication port 1113 communicating with the solution chamber 14. The valve plate 52 is provided on the outer peripheral side of the spool 51, and the intake port 1111 is closed by the intake valve 5 when the valve plate 52 closes the communication port 1113, and the intake port 1111 is opened by the intake valve 5 when the valve plate 52 opens the communication port 1113. By the movement of the spool 51, the movement of the spool 51 can be achieved by, for example, manually pressing the spool 51, and the movement of the valve plate 52 can be brought about, thereby opening and closing the communication port 1113 of the intake passage 1112 by the movement of the valve plate 52. When the valve plate 52 closes the communication port 1113 of the intake passage 1112, the outside air cannot enter the dissolved air chamber 14 through the intake passage 1112; when the valve plate 52 opens the communication port 1113, the external ventilation flows through the air intake passage 1112 and enters the air dissolving chamber 14 through the communication port 1113 in sequence, so that the air dissolving chamber 14 is replenished. The intake valve 5 is simple in structural design and convenient to operate.

Alternatively, referring to fig. 3, 10 and 11, the valve plate 52 may be located on the side of the intake hole 1111 adjacent to the dissolved air chamber 14, with the valve plate 52 abutting directly or indirectly against the inner wall of the dissolved air chamber 14 when the valve plate 52 closes the communication port 1113. From this, through setting up valve plate 52 in the one side that is located the neighbouring dissolved air chamber 14 of inlet port 1111 for valve plate 52 is located the dissolved air chamber 14 indoor, through the valve plate 52 and the inner wall direct or indirect butt of dissolved air chamber 14, can conveniently realize that the valve closes intercommunication mouth 1113, and closes reliably.

Further, referring to fig. 11, a seal 53 may be provided between the valve plate 52 and the inner wall of the air dissolution chamber 14, and the seal 53 abuts against the inner wall of the air dissolution chamber 14 when the valve plate 52 closes the communication port 1113. By providing the sealing gasket 53 between the valve plate 52 and the inner wall of the air-dissolving chamber 14, the sealing property of the valve plate 52 for closing the communication port 1113 can be further ensured, thereby ensuring that the air-dissolving chamber 14 is sealed well when the air inlet 1111 is in a closed state.

Wherein, the sealing gasket 53 can be sleeved on the valve post 51, and the sealing gasket 53 is connected with or abutted against the valve plate 52. Through establish sealed 53 cover on the valve post 51, make things convenient for sealed 53 installation to fix on admission valve 5, sealed 53 links to each other or the butt with valve plate 52 simultaneously, and when the valve plate 52 closed intercommunication mouth 1113, valve plate 52 can compress tightly sealed 53 for sealed 53 closely laminate on the inner wall of dissolved air chamber 14, guarantee good leakproofness.

For example, in some embodiments of the present invention, referring to fig. 11, the portion of the spool 51 adjacent to the valve plate 52 is formed with a positioning groove 511, the seal packing 53 includes a sealing portion 531 and a positioning portion 532 connected, the positioning portion 532 is accommodated in the positioning groove 511, and the sealing portion 531 abuts against the inner wall of the solvent chamber 14 when the valve plate 52 closes the communication port 1113. Thus, by providing the gasket 53 with two parts, i.e., the sealing portion 531 and the positioning portion 532, and by providing the positioning groove 511 on the spool 51 to be fitted with the positioning portion 532, when the gasket 53 is fitted around the spool 51, the positioning portion 532 of the gasket 53 is accommodated and fitted in the positioning groove 511 of the spool 51, and the gasket 53 can be mounted and fixed to the intake valve 5 easily and reliably.

Alternatively, referring to fig. 11, the thickness d2 of the positioning portion 532 may be larger than the thickness d1 of the seal portion 531, and both the thickness of the positioning portion 532 and the thickness of the seal portion 531 refer to dimensions in the axial direction of the spool 51. By providing the positioning portion 532 with a large thickness, the fitting area of the gasket 53 and the spool 51 can be increased, and the reliability of the connection between the gasket 53 and the spool 51 can be further improved.

In some alternative embodiments of the present invention, referring to fig. 3, 10 and 11, the shower apparatus 100 includes a resilient member 54 for restoring the intake valve 5, one end of the resilient member 54 is connected to the intake valve 5, the other end of the resilient member 54 is connected to the shower head 1, the resilient member 54 is elastically deformable in the axial direction of the intake hole 1111, the resilient member 54 has a resilient force to the intake valve 5 to close the intake hole 1111, and the resilient member 54 may be a spring. The return of the inlet valve 5 is advantageously achieved by the provision of the elastic element 54. For example, when the air intake valve 5 is not subjected to an external force, the elastic force of the elastic member 54 on the air intake valve 5 enables the air intake valve 5 to close the air intake hole 1111, when air is required to be supplied, the air intake valve 5 can be manually pressed to enable the air intake valve 5 to move along the axial direction of the air intake hole 1111 so as to open the air intake hole 1111, external air enters the air dissolving chamber 14 through the air intake hole 1111, after air supply is completed, the air intake valve 5 is released, the air intake valve 5 is reset under the elastic force of the elastic member 54, and the air intake hole 1111 is closed by the air intake valve 5.

Further, referring to fig. 3, 10 and 11, the shower apparatus 100 includes: and the fixed bracket 55, the fixed bracket 55 is arranged in the gas dissolving cavity 14, the fixed bracket 55 is connected with the spray head 1, and the other end of the elastic piece 54 is connected with the fixed bracket 55. The elastic member 54 can be easily connected to the shower head 1 by providing the fixing bracket 55. The fixing bracket 55 may be fixed to the shower head 1 by bonding, and the fixing bracket 55 may be welded (for example, by hot plate welding) to the shower head 1. In addition, when the accommodating cavity is provided with the water inlet channel 16 and the outlet 1621 of the water inlet channel 16 is arranged close to the air inlet hole, the fixed support 55 is close to the outlet 1621 of the water inlet channel 16, and when water is sprayed into the dissolved air cavity 14 through the outlet, a part of water flow can directly impact on the fixed support 55, so that the water flow is more scattered in an impact manner, and more air can be dissolved by the water flow.

For example, in some embodiments of the present invention, referring to fig. 11, the fixing bracket 55 includes a bracket body 551 and a positioning projection 552 provided on the bracket body 551. The intake valve 5 includes the above-described spool 51 and the valve plate 52, and the wall of the air-accommodating chamber 14 is formed with the guide hole 171, and the intake hole 1111 is located on the outer peripheral side of the guide hole 171, and the guide structure 17 is defined between the intake hole 1111 and the guide hole 171. The valve column 51 is movably arranged through the guide hole 171, the valve column 51 is in clearance fit with the guide hole 171, so that the valve column 51 can move, external air can not enter the air dissolving cavity 14 through a clearance between the valve column 51 and the inner wall of the guide hole 171 basically, in addition, the guide structure 17 can play a role in guiding the movement of the valve column 51, and the guide structure 17 also has a certain supporting role on the valve column 51. Wherein, the air inlet 1111 can be one, and the air inlet 1111 also can be a plurality of, and when the air inlet 1111 is a plurality of, a plurality of air inlet 1111 set up along the circumference interval of guiding hole 171.

An air inlet channel 1112 is defined in the air inlet hole 1111, the air inlet channel 1112 is provided with a communication port 1113 communicated with the air dissolving cavity 14, the valve plate 52 is arranged on the outer peripheral side of the valve post 51, the air inlet hole 1111 is closed by the air inlet valve 5 when the valve plate 52 closes the communication port 1113, the air inlet hole 1111 is opened by the air inlet valve 5 when the valve plate 52 opens the communication port 1113, one end of the elastic member 54 is sleeved on the valve post 51 and is connected or abutted against the valve plate 52, and the other end of the elastic member 54 is sleeved on the positioning bump 552 and is connected or abutted against the bracket body 551. One end of the elastic part 54 is sleeved on the valve post 51 and connected or abutted to the valve plate 52, and the other end of the elastic part 54 is sleeved on the positioning bump 552 and connected or abutted to the bracket body 551, so that the elastic part 54 is limited in the axial direction of the air inlet 1111, and the elastic part 54 and the air inlet valve 5 are conveniently mounted and fixed.

When the spraying device 100 includes the above-mentioned intake valve 5, the gasket 53, the elastic member 54 and the fixing bracket 55, the gasket 53 may be firstly sleeved on the valve post 51 of the intake valve 5, then the intake valve 5 is installed on the spraying head 1, and then the elastic member 54 is installed, and then the fixing bracket 55 is installed, and the elastic member 54 is in a pre-pressing state, so as to ensure that the valve plate 52 of the intake valve 5 and the gasket 53 provided on the valve plate 52 can seal the communication port 1113 of the intake passage 1112 when the intake valve 5 is not subjected to an external force.

In accordance with some embodiments of the present invention, referring to fig. 1-3 and 19-26, spray device 100 includes a showerhead 1 and a handle 6 coupled such that handle 6 may be held by hand during use of spray device 100 or handle 6 may be positioned on a wall or the like to secure spray device 100 to facilitate use of spray device 100. The handle 6 comprises a handle body 61 and a handle shell 62, a water flow channel 610 is defined in the handle body 61, one end of the handle body 61 is connected with the spray header 1, the water flow channel 610 is communicated with the water inlet 1611, water can enter the air dissolving cavity 14 of the spray header 1 through the water flow channel 610 and the water inlet 1611, and the handle shell 62 is sleeved on the outer peripheral side of the handle body 61. When the shower head 1 is provided with the water inlet passage 16, the water flow passage 610 in the handle 6 is communicated with the gas dissolving chamber 14 through the water inlet passage 16, the handle 6 can be connected with a water pipe (such as a hose), and water can enter the gas dissolving chamber 14 through the water flow passage 610 and the water inlet passage 16 in sequence.

Through setting up handle 6 to including handle shell 62 and handle body 61 two parts, can improve the overall structure intensity of handle 6, satisfy spray set 100's high-pressure requirement to can make handle body 61 and handle shell 62 adopt the same or different material to make as required, make the structure and the material of handle 6 choose for use more in a flexible way. For example, in the case that the same material is used for the handle body 61, the material of the handle housing 62 may be changed so that the handle 6 has different appearance effects and material saving may be achieved. For example, the handle body 61 may be a metal member, and the handle housing 62 may be a plastic member or a metal member.

Optionally, the handle body 61 is snapped or glued to the handle housing 62. Therefore, the handle body 61 and the handle shell 62 can be conveniently connected and reliably connected.

For example, referring to fig. 3, 19 to 26, flanges 621 extending toward the center of the handle housing 62 are respectively formed at two ends of the handle housing 62, the handle housing 62 may be a sheet metal part, the flanges 621 of the handle housing 62 are press-fitted on the handle body 61, a first step surface 6132 and a second step surface 6141 may be respectively formed at two axial ends of the handle body 61, and the flanges 621 at the two axial ends of the handle housing 62 may respectively abut against the first step surface 6132 and the second step surface 6141, so that reliable connection between the handle housing 62 and the handle body 61 may be achieved.

In some embodiments of the present invention, referring to fig. 19 and 20, a reinforcing structure is formed on the handle body 61. This can improve the structural strength of the handle body 61, thereby further improving the overall structural strength of the handle 6 and satisfying the high-pressure requirement of the shower device 100.

Alternatively, referring to fig. 19 and 20, a reinforcing structure is formed on the outer circumferential wall of the handle body 61, the reinforcing structure includes a first reinforcing rib 611 extending in the circumferential direction of the handle body 61, the first reinforcing rib 611 may be annular, and the first reinforcing rib 611 is a plurality of ribs arranged at intervals in the length direction of the handle body 61. Through arranging the first reinforcing ribs 611 on the handle body 61 along the length direction thereof, the structural strength of the handle body 61 along the whole length direction thereof is high, the structural strength of each part of the handle body 61 is high, the overall structural strength is high, and the high-pressure requirement of the spraying device 100 is better met.

Further, referring to fig. 19 and 20, the reinforcing structure includes at least one second reinforcing rib 612 extending in the longitudinal direction of the handle body 61, the first reinforcing rib 611 intersects and is connected to the second reinforcing rib 612, and the second reinforcing rib 612 may extend from one end of the handle body 61 in the longitudinal direction to the other end of the handle body 61 in the longitudinal direction. When the number of the second reinforcing ribs 612 is plural, the second reinforcing ribs 612 may be arranged at intervals along the circumferential direction of the handle body 61. Therefore, the first reinforcing rib 611 and the second reinforcing rib 612 are reinforced along different directions, so that the handle body 61 is fully distributed with a reinforcing structure, the structural strength of the handle body 61 is improved better, and the high-pressure requirement of the spraying device 100 is met better.

In some embodiments of the present invention, referring to fig. 3 and 22, the cross-sectional area of the water flow passage 610 is constant or the cross-sectional area of the water flow passage 610 is gradually reduced in the extending direction of the water flow passage 610. Therefore, the water flow channel 610 has no inverted buckle structure, and the handle body 61 can be smoothly demoulded.

According to some embodiments of the present invention, referring to fig. 1-3 and 19-26, the spray device 100 includes a spray header 1 and a handle 6, the handle 6 defines a water flow channel 610 therein, one end of the handle 6 is connected to the spray header 1, the water flow channel 610 is communicated with a water inlet 1611, water can enter the dissolved air cavity 14 of the spray header 1 through the water flow channel 610 and the water inlet 1611, and the other end of the handle 6 is provided with a quick connector 613. When using spray set 100, can link to each other the other end of handle 6 with the water pipe, have on the water pipe with handle 6's quick-operation joint 613 matched with water pipe head, set up the other end of handle 6 into the structure of quick-operation joint 613, can conveniently realize quick installation, the dismantlement of spray set 100's handle 6 and water pipe, can realize convenient and fast through the operation of quick plug. For example, when the spraying device 100 needs to be cleaned or the air-dissolving chamber 14 needs to be quickly supplied with air or exchanged, the handle 6 may be detached from the water pipe, so that the spraying device 100 may be detached to facilitate cleaning of the spraying device 100 or air-supplying or exchanging of the air-dissolving chamber 14, and when the spraying device 100 is used, the quick connector 613 of the handle 6 may be connected to the water pipe.

In some alternative embodiments of the present invention, referring to fig. 20 and 22, the quick coupling 613 is formed with a locking groove 6131, the water pipe adapted to be connected to the handle 6 has a water pipe coupling cooperatively connected with the quick coupling 613, the water pipe coupling has a buckle cooperatively connected with the locking groove 6131, and the buckle is an elastic buckle or is movable in a radial direction of the water pipe coupling. From this, through the cooperation of buckle on the water pipe head and draw-in groove 6131 on quick-operation joint 613, can realize that quick-operation joint 613 is fixed with water pipe head's high-speed joint to can realize the high-speed joint of handle 6 and water pipe. When the buckle is an elastic buckle, the elasticity of the buckle is utilized, so that the buckle can be in interference fit with the clamping groove 6131, and the buckle is prevented from being separated from the clamping groove 6131; when the buckle is movable along the radial direction of the water pipe joint, the buckle can be accommodated in the clamping groove 6131 in a matched mode through pressing the buckle, and the buckle can be locked and positioned in the clamping groove 6131 through the locking piece.

Further, referring to fig. 20 and 22, the slot 6131 extends along the circumferential direction of the quick coupling 613 and is annular. Therefore, the matching area of the buckle and the clamping groove 6131 can be increased, and the reliability of the connection between the handle 6 and the water pipe can be improved.

In some alternative embodiments of the present invention, referring to fig. 1-3 and fig. 19-26, the handle 6 includes the above-mentioned handle body 61 and handle housing 62, the handle body 61 defines a water flow channel 610 therein, one end of the handle body 61 is connected to the shower head 1, the water flow channel 610 is communicated with the water inlet 1611, water can enter the dissolved air cavity 14 of the shower head 1 through the water flow channel 610 and the water inlet 1611, the other end of the handle body 61 is provided with a quick coupling 613, and the handle housing 62 is sleeved on the outer periphery side of the handle body 61. Through setting up handle 6 to including handle shell 62 and handle body 61 two parts, can improve handle 6's overall structure intensity, satisfy spray set 100's high-pressure requirement to can make handle body 61 and handle shell 62 adopt the same or different material to make as required, make handle 6's structure and material choose for use more in a flexible way, also make handle 6 can have different outward appearance effects.

Further, the handle body 61 is an integrally formed part, and the quick connector 613 is integrally formed with the handle body 61, so that the structure of the handle 6 can be simplified, and the processes of processing and assembling the handle 6 can be simplified.

For example, in the examples of fig. 3, 10, 19-22, the handle 6 includes the above-mentioned handle body 61 and the handle housing 62, the two ends of the handle housing 62 are respectively formed with flanges 621 extending toward the center direction of the handle housing 62, the handle housing 62 may be a sheet metal part, and the flanges 621 of the handle housing 62 are pressed on the handle body 61. One end of the handle body 61 is provided with a threaded joint 614, the other end of the handle body 61 is provided with the quick joint 613, two axial ends of the handle body 61 can be respectively formed with a first step surface 6132 and a second step surface 6141, the first step surface 6132 is adjacent to the quick joint 613, and the second step surface 6141 is adjacent to the threaded joint 614. The flanges 621 at the two axial ends of the handle housing 62 can be respectively abutted against the first step surface 6132 and the second step surface 6141, so that the handle housing 62 and the handle body 61 can be reliably connected.

Threaded connection 614 and shower head shell 111 threaded connection of shower head 1 are passed through to the one end of handle body 61, and the threaded connection 614 threaded connection of handle body 61 is in the inhalant canal 16 of shower head 1 to make rivers passageway 610 and inhalant canal 16 communicate, through the threaded connection of handle body 61 and shower head 1, can realize handle 6 and shower head 1 quick, reliably be connected, and make things convenient for the dismouting of handle 6 and shower head 1. Wherein, a sealing ring 7 is arranged between the end part of the threaded joint 614 of the handle 6 and the spray header 1, so that the joint between the handle 6 and the spray header 1 is sealed reliably.

In other alternative embodiments of the present invention, the handle 6 may be an integral part, and the quick connector 613 is integrally formed with the handle 6 itself, so as to simplify the structure of the handle 6 and simplify the processes of manufacturing and assembling the handle 6.

A washing system according to an embodiment of the second aspect of the invention, comprises: according to the spraying device 100 of the first aspect of the present invention, the washing system may be a shower system, a dishwasher, a washing machine, a steam mop, a fruit and vegetable washing machine, etc.

According to the washing system of the embodiment of the invention, the spray device 100 is arranged, so that the assembly of the spray head 1 is more convenient.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A spray device, comprising:

the spray head comprises a spray head body and a spray plate, the spray plate is arranged at the open end of the spray head body, the spray head body comprises a spray head shell and a spray head cover, the water inlet is formed in the spray head shell, the spray plate is arranged in the spray head cover and is positioned at the opening side of the spray head shell, and the water outlet comprises a plurality of spray holes formed in the spray plate;

a cavitation spare for producing the microbubble, cavitation spare is established hold the intracavity and be located the water inlet with between the delivery port, cavitation spare with inject between the shower head with the dissolved air chamber of water inlet intercommunication, the dissolved air chamber is located cavitation spare's neighbouring one side of water inlet, be formed with the intercommunication on the cavitation spare the dissolved air chamber with the cavitation passageway of delivery port, cavitation spare with inject out the water cavity between the shower plate, cavitation passageway intercommunication dissolved air chamber with go out the water cavity, hold the intracavity have with the water inlet channel that the dissolved air chamber separates, water inlet channel has water inlet and export, the flow area of cavitation spare is less than the flow area of export.

2. The shower apparatus according to claim 1, wherein the shower head cover includes a cover body having a cylindrical shape and a stopper portion connected to an end of the cover body remote from the shower head case, the stopper portion being located on an inner peripheral side of the cover body, the cover body being connected to the shower head case, and the shower plate abutting against or being connected to the stopper portion.

3. The spray device of claim 2, wherein the spray plate comprises a plate body and an engaging portion formed on an outer peripheral edge of the plate body, the engaging portion is located on a side of the plate body adjacent to the showerhead housing, the engaging portion engages with the cover body, the plate body is formed with a plurality of spray holes, and the plate body abuts against or is connected to the stopper portion.

4. The spraying device as claimed in claim 3, wherein a positioning notch is formed on the plate body, the stopper portion is engaged with the positioning notch, and a free end of the stopper portion abuts against a sidewall of the positioning notch.

5. The spray assembly of claim 1 wherein said spray head housing and said spray head cover are threadably connected.

6. The spray device of claim 1, comprising: and the sealing assembly is arranged between the cavitation piece and the inner wall of the accommodating cavity.

7. The spray device of claim 6 wherein said seal assembly includes a seal, a portion of said seal being positioned between said showerhead body and said cavitation member, another portion of said seal being positioned between said shower plate and said cavitation member.

8. The spray device of claim 1, wherein the wall of the air-dissolving chamber is formed with an air inlet hole adapted to communicate the air-dissolving chamber with the external environment, the air inlet hole having an open state and a closed state, the air inlet hole being in the closed state when the spray device sprays.

9. A washing system, comprising: the spray device of any one of claims 1-8.