CN212326923U

CN212326923U - Defoaming structure and domestic sprayer

Info

Publication number: CN212326923U
Application number: CN202021329733.7U
Authority: CN
Inventors: 谢翀; 梁杰等; 周君伟
Original assignee: Guangdong Yinhu Medical Technology Co ltd
Current assignee: Guangdong Yinhu Medical Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-01-12
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a defoaming structure and domestic sprayer. The defoaming structure comprises a shell, a water inlet pipe and a defoaming device, wherein the shell is provided with the water inlet pipe; the inner shell is arranged in the outer shell, a cold water cavity is formed between the inner shell and the outer shell, the top of the inner shell is provided with an overflow outlet, the inner side surface of the inner shell is provided with a flow guide surface which is contracted towards the overflow outlet from top to bottom, a heating cavity is arranged in the inner shell, the inner shell is provided with a water inlet channel, and the water inlet channel is connected with the heating cavity and the cold water cavity; the heating piece is eccentrically arranged in the heating cavity. This scheme is through the eccentric settings that generates heat, the water boiling and the gassing that generate heat the intracavity is close to, water that water conservancy diversion face guide has the bubble drives rivers upwards and flows to low temperature waters direction, it is rotatory to produce the centrifugation, roll, make the great bubble of volume broken by the extrusion, the less bubble of volume spills out the overflow outlet along with the water of part boiling, get into the cold water chamber, restrained, broken under the difference in temperature effect, effectively eliminate the bubble, improve the safety in utilization, improve and use experience.

Description

Defoaming structure and domestic sprayer

Technical Field

The utility model relates to a domestic sprayer technical field, in particular to defoaming structure and domestic sprayer.

Background

In daily life, people use the sprayer to maintain skin, repair, in the current sprayer, the inside water of being equipped with of sprayer is heated, water heating produces steam after boiling, steam passes through the passageway blowout, act on human skin, when being heated for the pure water, the bubble that steam formed in aqueous breaks easily, spun steam atomization is complete, but in the in-service use, people often add essential oil or drug composition in aqueous, the bubble surface tension who leads to producing is big, be difficult for breaking, spout together with atomizing steam is followed to liquid form, scald skin easily, there is the potential safety hazard, the atomizer also can be polluted fuselage or peripheral furniture to the spun liquid, influence the use and experience.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a defoaming structure, can eliminate the bubble, improve the safety in utilization, improve and use experience.

The utility model also provides a domestic sprayer of having above-mentioned defoaming structure.

According to the utility model discloses defoaming structure of first aspect embodiment includes: a housing provided with a water inlet pipe; the inner shell is arranged in the outer shell, a cold water cavity is formed between the inner shell and the outer shell, an overflow outlet is formed in the top of the inner shell, a flow guide surface which is contracted towards the overflow outlet from bottom to top is arranged on the inner side surface of the inner shell, a heating cavity is formed in the inner shell, a water inlet channel is formed in the inner shell, and the water inlet channel is connected with the heating cavity and the cold water cavity; the heating piece is eccentrically arranged in the heating cavity.

According to the utility model discloses defoaming structure has following technological effect at least: cold water passes through the inlet tube and gets into the cold water chamber, get into the heating chamber through the water inlet channel and be heated, because the eccentric settings of the piece that generates heat, the heating intracavity is close to the water boiling and the gassing of the high temperature waters of the piece that generates heat, guide through the water conservancy diversion face, the water with the bubble drives rivers upwards and flows to low temperature waters direction, the water centrifugation with the bubble is rotatory, roll, make the great bubble of volume break by the extrusion, the less bubble of volume is followed the water of partial boiling and is followed the overflow mouth together and gushed out, get into the cold water chamber, be restrained under the temperature difference effect, break, effectively eliminate the bubble, guarantee that steam atomization is complete, avoid having liquid blowout, improve the safety in utilization, improve and use experience.

According to some embodiments of the utility model, the inner shell bottom is provided with the clamp plate, the clamp plate with shell bottom fixed connection, generate heat the piece and install on the clamp plate. The heating piece is fixedly installed through the pressing plate, and the installation is reliable and stable.

According to some embodiments of the utility model, the piece bottom that generates heat is provided with the temperature controller, the temperature controller with the piece electricity that generates heat is connected. Detect a temperature that generates heat through the temperature controller, avoid generating heat a high temperature and burn out, when the piece that generates heat reaches the ultimate temperature, in time the outage, the protection generates heat a life, effectively prolongs.

According to some embodiments of the present invention, the pressing plate and the inner shell are provided with a water sealing ring therebetween. Through the water seal ring, the connection gap between the inner shell and the pressing plate is sealed, the heating cavity is well sealed, water leakage is avoided, and the sprayer is guaranteed to work reliably.

According to some embodiments of the utility model, the shell top is provided with the steam outlet, the steam outlet with the setting of staggering each other of overflow outlet. Steam outlet is used for connecting the medicine box, is equipped with essential oil or Chinese herbal medicine liquid in the medicine box, and steam lets in the medicine box after, can spout the steam that contains essential oil or drug composition, sets up steam outlet and overflow outlet through staggering, and when stifled essential oil or Chinese herbal medicine liquid take place the backward flow, the water droplet can not directly get into the heating intracavity, guarantees the purity of heating intracavity water, avoids producing the bubble production that thoughtlessly has essential oil or drug composition to guarantee that the defoaming is reliable.

According to some embodiments of the utility model, the shell includes upper cover and casing, steam outlet sets up cover on, the upper cover with be provided with a plurality of sealed rubber rings between the casing. Through setting up the upper cover, can open the upper cover and carry out inside washing, guarantee the clean in cold water chamber and heating chamber to avoiding thoughtlessly having impurity in the bubble and increase bubble surface tension, guarantee that the defoaming is reliable effective, set up the clearance between sealed upper cover of sealing rubber ring and the shell, avoid steam leakage.

According to some embodiments of the utility model, the cover is equipped with the sealed gum cover on the steam outlet. The steam outlet is connected with the medicine box, and the clearance between the steam outlet and the medicine box is sealed through the sealing rubber sleeve, so that steam leakage is avoided.

According to some embodiments of the utility model, the shell bottom is connected with the outlet pipe, the play water end of outlet pipe is provided with the plug. When the water-saving type water heater is not used, the water outlet end of the water outlet pipe is sealed by the rubber plug, water leakage is avoided, when the water-saving type water heater is not used, the rubber plug is pulled out, residual water in the cold water cavity and the heating cavity can be discharged through the water outlet pipe, accumulated water is prevented from breeding bacteria, and the interior is kept clean.

According to some embodiments of the utility model, the inlet tube with be connected with the three-way pipe between the shell, the play water end of three-way pipe is provided with the plug. The water inlet pipe is connected through three-way pipe one end, and the shell is connected to one end, and remaining one end is for going out the water end, and during the use, the sealed water end that goes out of plug, water get into the cold water chamber through the inlet tube, when need not to use, extract the plug, and the inside deposit water of discharge avoids ponding to breed the bacterium, keeps inside clean, goes out water and integrative setting of intaking, optimizes whole volume size.

According to the utility model discloses domestic sprayer of second aspect embodiment, include according to the utility model discloses above-mentioned first aspect embodiment's defoaming structure.

According to the utility model discloses domestic sprayer has following beneficial effect at least: through adopting foretell defoaming structure, effectively eliminate the bubble that the heating produced, avoid having the steam water smoke blowout of liquid and scald the human body or pollute the service environment, improve the safety in utilization, improve and use experience.

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 an assembly cross-sectional view of a defoaming structure according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the defoaming structure shown in FIG. 1;

fig. 3 is an assembly cross-sectional view of a defoaming structure according to a second embodiment of the present invention;

FIG. 4 is an exploded view of the defoaming structure shown in FIG. 3;

fig. 5 is an enlarged view of a structure in fig. 2.

Reference numerals:

a shell 100, a water inlet pipe 110, a cold water cavity 120, a three-way pipe 130, a main pipe 131, a branch pipe 132, a water outlet pipe 140, a rubber plug 150, a steam outlet 160, a sealing rubber sleeve 161,

The inner shell 200, the heating cavity 210, the flow guide surface 211, the water inlet passage 220, the overflow outlet 230, the first groove 240, the water sealing ring 250, the buffer protrusion 251,

PTC heating sheet 300, mounting box 301, heating plate 310, pressing plate 320, mounting hole 321, temperature controller 330,

An upper cover 400, a second groove 410, a sealing rubber ring 420,

A housing 500.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The defoaming structure according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and 2, according to the utility model discloses defoaming structure, including outer shell 100, outer shell 100 is provided with inlet tube 110, is provided with inner shell 200 in the outer shell 100, forms cold water cavity 120 between inner shell 200 and the outer shell 100, and the inner shell 200 top is provided with overflow outlet 230, and the medial surface of inner shell 200 sets up the water conservancy diversion face 211 to the contraction of overflow outlet 230 direction from bottom to top, and the inside of inner shell 200 is provided with heating chamber 210, and inner shell 200 is provided with inlet channel 220, and inlet channel 220 connects heating chamber 210 and cold water cavity 120.

It can be understood that, water enters the cold water cavity 120 from the water inlet pipe 110, enters the heating cavity 210 through the water inlet passage 220, the heating element eccentrically arranged at the bottom of the heating cavity 210 heats water, the temperature of the water near the heating element is higher and is a high-temperature water area, the temperature of the water is lower and is a low-temperature water area, so that the temperature difference of the water in the heating cavity 210 is formed, when the water in the high-temperature water area is heated to boiling and generates bubbles, the water with the bubbles drives the water flow to flow upwards and towards the direction of the low-temperature water area under the guidance of the guide surface 211, the water with the bubbles centrifugally rotates and rolls, because the surface area of the bubbles with larger volume is also larger, the concentration of the bubble film is lower, the surface tension is smaller, the bubbles are easy to break, and during the rotating and rolling processes, the bubbles with larger volume are crushed and disappear or become bubbles with smaller volume, and the boiling water can flow, because the water conservancy diversion face 211 is to the shrink of overflow mouth 230 direction from bottom to top, the less bubble of volume can upwards gush out overflow mouth 230 along with the water of boiling, gets into cold water chamber 120, and under the effect of difference in temperature, the less bubble of volume is suppressed, is broken, realizes effectively eliminating the bubble, guarantees that spun steam atomization is complete, avoids having the liquid blowout and scald the human body or pollute peripheral furniture, improves the safety in utilization, improves and uses experience.

For example, as shown in fig. 1 and 2, the heat generating member may be a PTC heat generating sheet 300, the bottom of the inner casing is provided with a mounting box 301, the PTC heat generating sheet 300 is eccentrically mounted in the mounting box 301, as shown in fig. 3 and 4, the heat generating member may also be a heat generating plate 310, and the heat generating plate 310 is a C-shaped ring body with a notch.

In some embodiments of the present invention, the bottom of the heating element is provided with a temperature controller 330, and the temperature controller 330 is electrically connected to the heating element. Further, the bottom of the inner casing 200 is provided with a pressing plate 320, and the pressing plate 320 is fixedly connected with the bottom of the outer casing 100.

Specifically, the temperature of the temperature controller 330 triggering control action is 120 ℃, when the heating element is set as the PTC heating sheet 300, the PTC heating sheet 300 is eccentrically installed in the installation box 301, the pressing plate 320 is installed at the bottom of the installation box 301 and is fixedly connected with the bottom of the housing 100 through a screw, the pressing plate 320 is provided with an installation hole 321, the temperature controller 330 is installed in the installation hole 321, the top of the temperature controller 330 is tightly contacted with the bottom of the PTC heating sheet 300, the PTC heating sheet 300 and the temperature controller 330 are fixedly installed through the pressing plate 320, and the positioning installation is reliable and stable; when the heating member is set as the heating plate 310, the heating plate 310 is installed at the bottom of the pressing plate 320, the pressing plate 320 is fixedly connected with the bottom of the casing 100 through a screw, and the temperature controller 330 is installed at the bottom of the heating plate 310 and is in close contact with the heating plate 310. Temperature controller 330 all with generate heat a in close contact with during installation, guarantee that both contacts are good, the heat conduction is reliable, can understand that temperature controller 330 detects a temperature that generates heat, and when a temperature that generates heat reached upper limit temperature 120 ℃, temperature controller 330 control generated heat a timely outage, avoided generating heat a burnout, and the protection generates heat a life, effectively prolongs a life that generates heat.

The temperature for triggering the operation of the temperature controller 330 may be set according to actual needs, and may be set to a temperature of 110 ℃, 125 ℃, or 130 ℃, not limited to 120 ℃.

As shown in fig. 1 to 4, in some embodiments of the present invention, a water sealing ring 250 is disposed between the pressing plate 320 and the inner casing 200.

For example, as shown in fig. 1, fig. 2 and fig. 5, the bottom of the inner housing 200 is provided with a first groove 240, the water sealing ring 250 is provided as a silica gel ring with a cross section being "perpendicular", the top of the water sealing ring 250 is embedded into the first groove 240, the bottom is in close contact with the heating element, a gap between the inner housing 200 and the heating element is sealed, water leakage is avoided, the bottom of the water sealing ring 250 is provided with two buffering convex strips 251, during installation, the buffering convex strips 251 are extruded and deformed, the contact area and the friction force between the water sealing ring 250 and the heating element are increased, and the heating cavity 210 is further ensured to be sealed and reliable. As shown in fig. 3 and 4, the water sealing ring 250 is flat, and has an upper surface closely contacting with the bottoms of the outer and

inner casings

100 and 200, and a lower surface closely contacting with the pressing plate 320.

As shown in fig. 1 to 4, in some embodiments of the present invention, a steam outlet 160 is disposed at the top of the casing 100, the steam outlet 160 is used for connecting the medicine box, and the steam outlet 160 and the overflow outlet 230 are staggered from each other. Further, a sealing rubber sleeve 161 is sleeved on the steam outlet 160.

It can be understood that, steam outlet 160 is connected with the medicine box, be equipped with essential oil or Chinese herbal medicine liquid in the medicine box, steam gets into the medicine box through steam outlet 160, spout after mixing with essential oil or Chinese herbal medicine liquid in the medicine box, the clearance of sealed gum cover 161 sealed steam outlet 160 and medicine box junction, avoid steam leakage, in the use, the phenomenon of backward flow can inevitably exist to stifled essential oil or chinese herbal medicine water, because steam outlet 160 staggers the setting with overflow outlet 230, the backward flow water droplet that contains essential oil or Chinese herbal medicine liquid can directly not fall into heating chamber 210, guarantee the purity of the water in heating chamber 210, avoid aquatic to mix into essential oil or Chinese herbal medicine liquid, the bubble surface tension who leads to producing increases and is difficult to the defoaming, thereby guarantee that the defoaming is reliable, it is effective.

As shown in fig. 1 and 2, the casing 100 includes an upper cover 400 and a casing 500, the steam outlet 160 is disposed on the upper cover 400, and a plurality of sealing rubber rings 420 are disposed between the upper cover 400 and the casing 500.

Specifically, the upper cover 400 is circumferentially provided with two second grooves 410, each second groove 410 is internally provided with a sealing rubber ring 420, and the sealing rubber rings 420 seal the gap between the upper cover 400 and the housing 500, so as to avoid steam leakage.

It can be understood that the casing 100 can be configured as an integral type, or as a split type, as shown in fig. 3 and 4, when the casing is configured as an integral type, the steam outlet 160 is directly disposed at the top of the casing 100, so as to reduce the number of parts to be assembled, thereby reducing the number of assembling processes, improving the production efficiency, and saving the production cost; as shown in fig. 1 and 2, during the split design, the housing 100 comprises an upper cover 400 and a housing 500, the steam outlet 160 is arranged on the upper cover 400, after long-term use, impurities such as scales are easily generated inside, the upper cover 400 is opened to perform internal cleaning, the operation is convenient, the cleanness of the cold water cavity 120 and the heating cavity 210 is ensured, so that the bubbles are prevented from being mixed with impurities, the surface tension of the bubbles is increased, and the defoaming is ensured to be reliable and effective.

In some embodiments of the present invention, the bottom of the housing 100 is connected to a water outlet pipe 140, and a rubber plug 150 is disposed at the water outlet end of the water outlet pipe 140. When the sprayer is used, the rubber plug 150 seals the water outlet end of the water outlet pipe 140 to avoid water leakage, water can be stored in the cold water cavity 120 and the heating cavity 210 after entering the interior of the shell 100 to be ready for use, when the sprayer is not needed to be used, the rubber plug 150 is pulled out, residual water in the cold water cavity 120 and the heating cavity 210 is discharged through the water outlet pipe 140, accumulated water is prevented from breeding bacteria, and the interior is kept clean.

As shown in fig. 3 and 4, in some embodiments of the present invention, a three-way pipe 130 is connected between the water inlet pipe 110 and the outer shell 100, and a rubber plug 150 is disposed at a water outlet end of the three-way pipe 130.

Specifically, the three-way pipe 130 includes a main pipe 131 and a branch pipe 132, the branch pipe 132 is disposed on the main pipe 131, one end of the main pipe 131 is connected to the bottom of the housing 100, the other end is a water outlet end, the rubber plug 150 is installed, the branch pipe 132 is connected to the water inlet pipe 110, when in use, the rubber plug 150 seals the water outlet end, water enters the housing 100 through the water inlet pipe 110 and the main pipe 131, after use, the rubber plug 150 is pulled out, and the residual water in the housing 100 is discharged through the water outlet end of the main pipe 131. 110 way and 140 way integrative settings of outlet pipe of inlet tube reduce the accessory, reduce the assembly process, improve production efficiency, practice thrift manufacturing cost, optimize defoaming structure's whole volume size.

According to the utility model discloses domestic sprayer through adopting foretell defoaming structure, effectively eliminates the bubble that the heating produced, avoids having the steam water smoke blowout of liquid and scalds the human body or pollute the service environment, improves the safety in utilization, improves and uses experience, optimizes the size of defoaming structure spare, is convenient for realize domestic sprayer's miniaturized design.

The defoaming structure according to an embodiment of the present invention is described in detail below in two specific embodiments with reference to fig. 1 to 5. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

As shown in fig. 1 and fig. 2, according to the utility model provides a defoaming structure, including shell 100, be provided with inlet tube 110 on the shell 100, shell 100 includes upper cover 400 and casing 500, upper cover 400 is provided with and is used for the steam outlet 160 be connected with the medicine box, the cover is equipped with sealed gum cover 161 on the steam outlet 160, upper cover 400 is provided with two second recesses 410 in the week, all install sealed rubber ring 420 in every second recess 410, sealed rubber ring 420 and shell 100 inner wall in close contact with, the shell 100 bottom is provided with outlet pipe 140, the water outlet end of outlet pipe 140 is provided with plug 150.

Be provided with inner shell 200 in the shell 100, form cold water chamber 120 between inner shell 200 and the shell 100, the inside heating chamber 210 that is provided with of inner shell 200, it is provided with the piece that generates heat to generate heat the piece setting to PTC heating sheet 300, inner shell 200 bottom is provided with mounting box 301 that is used for installing PTC heating sheet 300, be provided with into water passageway 220 on the inner shell 200, it connects cold water chamber 120 and heating chamber 210 to intake water passageway 220, the inner shell 200 top is provided with overflow outlet 230, overflow outlet 230 and steam outlet 160 setting of misplacing each other, the medial surface of inner shell 200 sets up to the water conservancy diversion face 211 of the 230 orientation shrink of overflow outlet from bottom to top, water conservancy diversion face 211 is used for guiding the hot water of. The bottom of the inner shell 200 is provided with a first groove 240, a water sealing ring 250 is arranged between the inner shell 200 and the mounting box 301, the cross section of the water sealing ring 250 is of an 'overlapping' type, the top of the water sealing ring 250 is embedded into the first groove 240 again, two buffering convex strips 251 are arranged at the bottom of the water sealing ring 250, the buffering convex strips 251 are in close contact with the mounting box 301, a pressing plate 320 and a temperature controller 330 are arranged at the bottom of the PTC heating piece 300, a mounting hole 321 for mounting the temperature controller 330 is formed in the pressing plate 320, and the pressing plate 320 is in screw fastening connection with the bottom of the outer shell 100.

As shown in fig. 3 and 4, according to the second embodiment of the present invention, compared with the first embodiment, the casing 100 is integrally provided, and the steam outlet 160 is provided at the top of the casing 100; the water outlet pipe 140 is eliminated, a three-way pipe 130 is connected between the water inlet pipe 110 and the shell 100, and a rubber plug 150 is arranged at the water outlet end of the three-way pipe 130; the heating member is set as a heating plate 310, the water sealing ring 250 is set to be flat, the first groove 240 is eliminated, the heating plate 310 is arranged at the bottom of the pressing plate 320, the upper surface of the water sealing ring 250 is simultaneously in close contact with the bottoms of the outer shell 100 and the inner shell 200, the lower surface of the water sealing ring is in close contact with the pressing plate 320, and the temperature controller 330 is directly installed at the bottom of the heating plate 310.

According to the defoaming structure of the embodiment of the utility model, through such setting, can reach some effects as follows at least, cold water is heated in heating chamber 210, because heating element eccentric settings, the water of the high temperature waters that is close to heating element in heating chamber 210 boils and produces the bubble, through the guide of water conservancy diversion face 211, the water that has the bubble drives rivers upwards and flows to low temperature waters direction, the water that has the bubble is rotatory by centrifugation, roll, make the bubble of great volume extrude and break, the bubble of less volume is followed the water of partial boiling and is gushed out from overflow outlet 230 together, get into cold water chamber 120, be restrained, break under the temperature difference effect, effectively eliminate the bubble, guarantee steam atomization is complete, avoid having liquid blowout, improve the safety in utilization, improve the use experience, steam outlet 160 and the setting of staggering of overflow outlet 230, when stifling essential oil or Chinese herbal medicine liquid take place the backward flow, the water droplet can not directly get into in the heating chamber 210, guarantees the purity of heating chamber 210 internal water, avoids producing the bubble that mixes essential oil or drug composition to produce to guarantee that the defoaming is reliable, detect a temperature that generates heat through temperature controller 330, avoid a high temperature that generates heat and burn out, when a that generates heat reaches the ultimate temperature, in time cut-off, the protection generates heat, effectively prolongs a life that generates heat.

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 present 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.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A defoaming structure, comprising:

a housing provided with a water inlet pipe;

the inner shell is arranged in the outer shell, a cold water cavity is formed between the inner shell and the outer shell, an overflow outlet is formed in the top of the inner shell, a flow guide surface which is contracted towards the overflow outlet from bottom to top is arranged on the inner side surface of the inner shell, a heating cavity is formed in the inner shell, a water inlet channel is formed in the inner shell, and the water inlet channel is connected with the heating cavity and the cold water cavity;

the heating piece is eccentrically arranged in the heating cavity.

2. The defoaming structure of claim 1, wherein: the heating device comprises an inner shell, a heating piece and a pressing plate, wherein the pressing plate is arranged at the bottom of the inner shell and fixedly connected with the bottom of the outer shell, and the heating piece is arranged on the pressing plate.

3. The defoaming structure according to any one of claims 1 or 2, wherein: the bottom of the heating element is provided with a temperature controller which is electrically connected with the heating element.

4. The defoaming structure of claim 2, wherein: and a water sealing ring is arranged between the pressure plate and the inner shell.

5. The defoaming structure of claim 1, wherein: the top of the shell is provided with a steam outlet, and the steam outlet and the overflow outlet are arranged in a staggered mode.

6. The defoaming structure of claim 5, wherein: the shell comprises an upper cover and a shell, the steam outlet is arranged on the upper cover, and a plurality of sealing rubber rings are arranged between the upper cover and the shell.

7. The defoaming structure of claim 5 or 6, wherein: and a sealing rubber sleeve is sleeved on the steam outlet.

8. The defoaming structure of claim 1, wherein: the bottom of the shell is connected with a water outlet pipe, and a rubber plug is arranged at the water outlet end of the water outlet pipe.

9. The defoaming structure of claim 1, wherein: a three-way pipe is connected between the water inlet pipe and the shell, and a rubber plug is arranged at the water outlet end of the three-way pipe.

10. A domestic sprayer comprising the defoaming structure of any one of claims 1 to 9.