CN115813272A - Cleaning device and spray head assembly - Google Patents

Abstract

The present disclosure relates to a cleaning apparatus and a spray head assembly; the cleaning device comprises a heating device and a spray head assembly; wherein the heating device is configured to heat water to generate water mist; the nozzle assembly is provided with at least one gas orifice, the gas orifice comprises a vortex section and a spraying section which are communicated with each other, and the water mist generated by the heating device is configured to be sprayed out through the vortex section and the spraying section in sequence; wherein, be provided with the barrier surface that is used for the reflexive air current in the vortex section. Like this, in this disclosure cleaning device's working process, after the produced water smoke of heating device reachd the vortex section of fumarole, owing to be provided with the face that blocks that is used for the reflection air current in the vortex section, the water smoke can form the vortex in the vortex section and then follow the blowout section blowout, and at this in-process, water smoke can produce great sound to can be heard by the user, the user just can learn cleaning device normal blowout water smoke.

Description

Cleaning device and spray head assembly

Technical Field

The disclosure relates to the field of steam cleaning, in particular to cleaning equipment and a spray head assembly.

Background

Due to the limitation of structure and power, the amount of water mist sprayed out of the air nozzle of the existing steam floor washing machine is small, no sound is generated when the water mist is sprayed out, and a user can hardly perceive the water mist by vision alone, so that the user mistakenly thinks that the steam floor washing machine does not normally work, and then the mode of repeatedly restarting equipment is adopted to achieve the desired effect. The repeated restarting of the device is very likely to cause damage to the steam floor washing machine, and the failure of the steam floor washing machine to achieve the expected effect after repeated restarting is more likely to cause complaints of users, resulting in poor user experience.

Disclosure of Invention

The present disclosure provides a cleaning apparatus and a showerhead assembly for solving the problems existing in the prior art.

According to a first aspect of the present disclosure, there is provided a cleaning apparatus comprising:

a body;

a heating device configured to heat water to generate water mist;

the spray head assembly is provided with at least one air injection hole, the air injection hole comprises a vortex section and an ejection section which are communicated with each other, and the water mist generated by the heating device is configured to be ejected out through the vortex section and the ejection section in sequence; wherein, be provided with the barrier surface that is used for the reflexive air current in the vortex section.

In one embodiment of the present disclosure, the vortex section is frustum-shaped, and two opposite ends of the vortex section are respectively marked as a first end and a second end with an inner diameter larger than that of the first end; the discharge section is configured to be connected to a first end of the swirl section; the blocking surface is an inclined inner wall of the vortex section.

In one embodiment of the present disclosure, the ejection section and the swirl section are respectively cylindrical holes; the inner diameter of the spraying section is smaller than that of the vortex section, and the blocking surface is a step surface formed at the connecting position of the spraying section and the vortex section.

In one embodiment of the present disclosure, the ejection section is disposed coaxially with the swirl section.

In one embodiment of the present disclosure, the inner diameter of the swirl section is 1.5mm to 3.5mm, and the inner diameter of the ejection section is 1mm to 1.5mm.

In one embodiment of the present disclosure, the inner diameter of the swirl section is 2.5mm.

In one embodiment of the present disclosure, the axial length of the swirl section is 1.5mm to 4.5mm.

In one embodiment of the present disclosure, the axial length of the swirl section is 3mm.

In one embodiment of the present disclosure, the flow rate of the ejection section is 0.67g to 1g/min.

In one embodiment of the disclosure, the temperature of the water mist at the air jet holes is maintained at 95 ℃ to 102 ℃.

According to a second aspect of the present disclosure, there is provided a showerhead assembly provided with at least one gas injection hole comprising a swirl section and a discharge section in communication with each other, through which a water mist is configured to be discharged in sequence; wherein, be provided with the barrier surface that is used for the reflexive air current in the vortex section.

In this disclosed cleaning device's working process, after the produced water smoke of heating device reachd the vortex section of fumarole, owing to be provided with the face that blocks that is used for the reflex air current in the vortex section, the water smoke can form the vortex in the vortex section and then follow the blowout section blowout, and at this in-process, the water smoke can produce great sound to can be heard by the user, the user just can learn cleaning device normal blowout water smoke. According to the cleaning equipment, a user can visually observe the spraying of the water mist, and can judge by means of the sound generated when the water mist is sprayed, so that the use experience of the user is improved.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic perspective view of a cleaning apparatus provided by an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a gas injection hole provided by an embodiment of the present disclosure;

FIG. 3 is a further schematic cross-sectional view of a gas injection hole provided in a prior art cleaning apparatus;

FIG. 4 is a further cross-sectional schematic view of a gas injection hole provided by embodiments of the present disclosure;

FIG. 5 is a schematic diagram of a water mist state of a vortex section provided by an embodiment of the disclosure at an inner diameter of 1.5 mm;

FIG. 6 is a schematic diagram of a water mist state of a vortex section provided by an embodiment of the disclosure at an inner diameter of 2.5 mm;

FIG. 7 is a schematic diagram of a water mist state of a vortex section provided by an embodiment of the disclosure at an inner diameter of 3.5 mm;

FIG. 8 is a broken line schematic illustration of the percent swirl formation of the swirl section as a function of the inner diameter of the swirl section provided by an embodiment of the present disclosure;

FIG. 9 is a broken line schematic illustration of the percent swirl of the swirl section as a function of the inner diameter of the swirl section provided by embodiments of the present disclosure;

FIG. 10 is a schematic illustration of a water mist condition of a vortex section provided by an embodiment of the disclosure at an axial length of 1.5 mm;

FIG. 11 is a schematic illustration of a water mist condition of a vortex section having an axial length of 3mm provided by an embodiment of the disclosure;

FIG. 12 is a schematic illustration of a water mist condition of a vortex section at an axial length of 4.5mm provided by an embodiment of the disclosure;

FIG. 13 is a broken line schematic illustration of the percent swirl formation of the swirl section as a function of the axial length of the swirl section provided by an embodiment of the present disclosure;

FIG. 14 is a broken line schematic illustration of the percent swirl of a swirl section as a function of the axial length of the inner diameter of the swirl section provided by embodiments of the present disclosure.

The correspondence between the names and reference numerals of the respective components in fig. 1 to 14 is as follows:

10. a showerhead assembly; 1. a gas injection hole; 11. a vortex section; 111. a blocking surface; 12. a spraying section; 2. water mist; 30. a body; 40. a clear water barrel; 50. a sewage bucket; 60. a floor brush assembly.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Specific embodiments of the present disclosure are described below with reference to the accompanying drawings.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate relative positional relationships between relevant portions, and do not limit absolute positions of the relevant portions.

In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree and order of importance, the premise that each other exists, and the like.

In this context, "equal", "same", etc. are not strictly mathematical and/or geometric limitations, but also include tolerances as would be understood by a person skilled in the art and allowed for manufacturing or use, etc.

The present disclosure provides a cleaning appliance, which may be a hand-held cleaning appliance, such as a hand-held washer, a hand-held vacuum cleaner, a hand-held floor scrubber, or the like, as is known to those skilled in the art; the cleaning robot can also be self-moving cleaning equipment such as a sweeping robot, a mopping robot, a sweeping and mopping integrated robot and the like. The cleaning device can include a body, and a clean water bucket, a slop bucket, a floor brush assembly and the like arranged on the body. When the cleaning equipment disclosed by the disclosure is a floor washing machine, a user can move the floor washing machine on the ground by pushing the floor washing machine when using the floor washing machine for cleaning work, and the ground to be cleaned is cleaned by utilizing the floor brush assembly. In the cleaning process, the clear water bucket on the floor cleaning machine can supply water to the floor brush assembly to moisten the floor brush assembly and achieve the cleaning effect of wet mopping on the ground. The slop pail is configured to store slop generated during the cleaning process.

The cleaning apparatus of the present disclosure includes a heating device configured to heat water to produce a mist of water, and a spray head assembly. The nozzle assembly is provided with at least one gas orifice, and the gas orifice includes vortex section and the blowout section that communicates each other, and the water smoke that heating device produced is configured as through vortex section and blowout section blowout in proper order.

The vortex section is internally provided with the blocking surface for reflecting the air flow, so that when the water mist generated by the heating device is sprayed out through the air spraying hole in the working and water mist generating process of the cleaning device, part of the water mist can be sprayed to the blocking surface and reflected back due to the fact that the blocking surface for reflecting the air flow is arranged in the vortex section, and then the water mist can be sprayed out from the spraying section under the driving of the air flow after vortex is formed in the vortex section. In the process, part of the water mist forms a vortex in the vortex section, so that the vortex section can generate a loud sound, and the loud sound can be heard by a user, and the user can know that the cleaning equipment is in a state of normally spraying the water mist. When the user does not hear the sound caused by the vortex, the user can determine that the cleaning equipment does not start the water mist mode or the equipment breaks down, so that the cleaning equipment can be overhauled in time.

For ease of understanding, the specific structure and operating principle of the cleaning device and spray head assembly of the present disclosure will be described in detail below with reference to fig. 1 to 14 in conjunction with one embodiment.

As shown in fig. 1, the present disclosure provides a cleaning apparatus that may include a body 30, a heating device (not shown), and a spray head assembly 10. Wherein the heating device is configured to heat water to produce the water mist 2, the heating device may be a heating boiler, or may be of other forms of structure as long as it is capable of heating water and forming the water mist 2. In the embodiment of the disclosure, the water mist 2 refers to high-temperature steam, and when cleaning is performed, the working surface is preheated through the high-temperature steam, so that dirt on the working surface can be softened, and the dirt on the working surface can be removed.

It can be understood that the cleaning device can also be provided with a clear water barrel 50 and a driving pump, the driving pump pumps water in the clear water barrel 50 into the heating device, then the heating device heats the water and generates high-temperature water mist, and the high-temperature water mist can be sprayed out from the nozzle assembly 10 after passing through a corresponding pipeline; the cleaning apparatus may also include a waste tank 50 for holding waste water on the work surface.

The spray head assembly 10 may be disposed on a floor brush assembly 60 of the cleaning device, and is provided with at least one air injection hole 1, and each air injection hole 1 is communicated with an air outlet of the heating device. Specifically, as shown in fig. 1 and 2, the gas injection hole 1 includes a vortex section 11 and a discharge section 12 which are communicated with each other, and the water mist 2 generated by the heating device is configured to be discharged through the vortex section 11 and the discharge section 12 in sequence, wherein a blocking surface 111 for reflecting the gas flow is provided in the vortex section 11.

As shown in fig. 2, according to the results of fluid simulation and actual use, in the cleaning device of the present disclosure, since the blocking surface 111 for reflecting the air flow is provided in the vortex section 11, when the air flow is ejected outwards through the vortex section 11 and the ejection section 12, part of the water mist 2 may impact on the blocking surface 111 of the vortex section 11 and be reflected back by the blocking surface 111 to form a reverse flowing air flow vortex, and after the air flow vortex moves to the central portion of the vortex section 11, the air flow is ejected from the ejection section 12 under the driving of most of the air flow, and during the movement, the water mist 2 forms a vortex in the vortex section 11, so that the water mist 2 can make an audible sound in the vortex section 11. Referring to fig. 3, in the conventional cleaning apparatus, since the inner diameter of the gas ejection hole 1 is uniform throughout, the mist 2 cannot be swirled and cannot make an audible sound to the human ear.

Specifically, the water mist 2 can make an audible sound to the human ear for at least three reasons. Firstly, the air flow can form sound waves and spread outwards in the process of rotating along the vortex. Secondly, the airflow can impact the blocking surface 111 in the process of rotating along the vortex, so that the hole wall where the blocking surface 111 is located vibrates, and the hole wall where the blocking surface 111 is located generates sound. Thirdly, in the process that the water mist 2 moves and is sprayed out along the direction of the spraying section 12 after moving to the central part of the vortex section 11 along the vortex, the airflow pressure of the water mist 2 generates obvious jump, and in the pressure jump process, the water mist 2 vibrates, so that sound waves can be generated. When the sound wave generated by the above process is at least partially in the audible frequency range of human ears (i.e. 20Hz to 20000 Hz), the user can hear the sound and know that the water mist 2 is sprayed out of the air injection hole 1. It can be seen that the vortex is an important factor in generating sound, and the formation of the vortex is greatly related to the arrangement of the blocking surface 111.

In one embodiment of the present disclosure, as shown in fig. 2, the discharge section 12 and the scroll section 11 are cylindrical holes, and the inner diameter of the discharge section 12 is smaller than the inner diameter of the scroll section 11, and the blocking surface 111 is a step surface formed at the connection position of the discharge section 12 and the scroll section 11. That is, the ejection section 12 extends in a straight direction, and the size is the same at any position thereof. Similarly, the scroll portion 11 extends in a straight line direction, and the size is the same at any position thereof. Since the inner diameter of the discharge section 12 is smaller than that of the scroll section 11, the inner diameters are different, and thus a step surface, which is the above-mentioned blocking surface 111, is formed at the connection position of the discharge section 12 and the scroll section 11.

Referring to fig. 2, during the ejection of the gas flow from the gas orifice 1, the gas flow passes through the swirl section 11 and the ejection section 12 in sequence, and since the inner diameter of the ejection section 12 is small, the flow velocity of the gas flow along the extension direction of the ejection section 12 is the fastest, i.e., the gas flow is concentrated in the extension direction of the ejection section 12. However, because the inner diameter of the vortex section 11 is relatively large, most of the airflow is directly sprayed out through the spraying section 12 after passing through the vortex section 11, and part of the airflow collides with a step surface formed at the connecting position of the spraying section 12 and the vortex section 11 in the process of flowing through the vortex section 11, so that the airflow reversely flows under the reflection action of the step surface, forms airflow vortex, and further generates relatively large sound. The formed vortex is entrained by the gas flow in the main flow direction during the flow to be ejected through the ejection section 12.

In another embodiment of the present disclosure, as shown in fig. 4, the scroll section 11 is in a frustum shape, and two opposite ends thereof are respectively referred to as a first end and a second end having an inner diameter larger than the first end, wherein the discharge section 12 is configured to be connected with the first end of the scroll section 11, and the blocking surface 111 is an inclined inner wall of the scroll section 11. Referring to the view direction of fig. 4, the inner diameter of the swirl section 11 gradually decreases from bottom to top and is finally connected with the ejection section 12, which causes the inner wall of the swirl section 11 to gradually extend from bottom to top toward the central axis thereof, thereby forming a gradually inclined blocking surface 111.

Because the inclined inner wall is arranged in the vortex section 11, part of the water mist 2 is blocked by the inclined inner wall in the process of quickly spraying the water mist 2, so that a certain degree of vortex is formed, and then the sound is generated, and the principle of the sound generation is the same as that of the embodiment shown in fig. 2, and the details of the disclosure are not described herein.

This disclosed cleaning device, it is in the course of the work, after the produced water smoke 2 of heating device reachd the vortex section 11 of fumarole 1, owing to be provided with the face 111 that blocks that is used for reflecting the air current in the vortex section 11, water smoke 2 can form the vortex in vortex section 11 and then spout from blowout section 12, and at this in-process, water smoke 2 can produce great sound, thereby can be heard by the user, the user just can learn cleaning device normal blowout water smoke 2, thereby user's use experience has been improved. When the user does not hear the sound caused by the vortex, the user can determine that the cleaning equipment does not start the water mist mode or the equipment breaks down, so that the cleaning equipment can be overhauled in time.

As shown in fig. 2, in the case that the aforementioned ejection section 12 and the scroll section 11 are respectively cylindrical holes, in an embodiment of the present disclosure, the ejection section 12 and the scroll section 11 are coaxially arranged, so that the water mist 2 entering the scroll section 11 from all circumferential directions can form a larger degree of swirl, and the sound emitted by the water mist 2 is increased.

Whether or not the airflow can form airflow vortex in the vortex section 11, or the degree of vortex formation is related to the size of the vortex section 11 and the ejection section 12. In one embodiment of the present disclosure, the inner diameter of the swirl section 11 is 1.5mm to 3.5mm and the inner diameter of the ejection section 12 is 1mm to 1.5mm. Wherein, under the condition that the internal diameter of the spraying section 12 is 1mm to 1.5mm, the processing difficulty of the spraying section 12 can be effectively reduced, and the condition that the flow velocity of the water mist 2 is reduced and the visual effect and the auditory effect of the water mist 2 are greatly reduced due to the overlarge internal diameter of the spraying section 12 can be avoided. As shown in fig. 8 and 9, in the process that the inner diameter of the ejection section 12 is 1mm, the axial length of the swirl section 11 is 3mm, and the inner diameter of the ejection section 12 changes from 1.5mm to 3.5mm, the swirl forming percentage of the water mist 2 continuously increases from 5% to about 55%. While the swirl percentage of the water mist 2 increases continuously from 5% to about 42% during the change of the inner diameter of the swirl section 11 from 1.5 to 2.5mm and decreases continuously from 42% to about 20% during the change of the inner diameter of the swirl section 11 from 2.5 to 3.5 mm. Wherein, the vortex forming percentage is the ratio of the vortex angle formed by the water fog 2 in the diameter expanding section to a complete circle, and the vortex percentage is the percentage of the water fog 2 participating in the vortex formation to all the water fog 2.

Specifically, as shown in fig. 5, when the inner diameter of the vortex section 11 is 1.5mm, the space for forming the vortex is relatively small, and the water mist participating in forming the vortex is relatively small; as shown in fig. 6, when the inner diameter of the scroll section 11 is 2.5mm, the space is sufficient for forming a scroll, and the air flow participating in the formation of the scroll is increased and a very complete scroll is formed; as shown in fig. 6, when the inner diameter of the vortex section 11 is 3.5mm, the space is too large, the water mist cannot form a complete vortex, and although more water mist participates in forming the vortex, the audiovisual effect of the water mist is reduced because the water mist does not form a complete vortex.

In summary, in the case that the inner diameter of the vortex section 11 is 1.5mm to 3.5mm, and the inner diameter of the ejection section 12 is 1mm to 1.5mm, the ratio of the vortex angle formed by the water mist 2 in the diameter expansion section to the complete circle is high, and the percentage of the water mist 2 participating in the vortex formation is also high, so that more water mist 2 can form a vortex with a larger angle, thereby improving the sound emitted by the water mist 2.

In an embodiment of the present disclosure, as shown in fig. 6, 8 and 9, when the inner diameter of the ejection section 12 is 1mm and the inner diameter of the ejection section 12 is 2.5mm, the percentage of the swirling of the mist 2 is 40% and the percentage of the swirling is 42%, so that the percentage of the mist 2 participating in the swirling is the largest, and the swirling angle of the mist 2 in the diameter-expanded section is relatively large, so that the sound emitted by the mist 2 is relatively large.

While for the axial length of the scroll section 11, in one embodiment of the present disclosure, the axial length of the scroll section 11 is 1.5mm to 4.5mm. As shown in fig. 13 and 14, in the process that the inner diameter of the ejection section 12 is 1mm, the inner diameter of the vortex section 11 is 2.5mm, and the axial length of the vortex section 11 is 1.5mm to 4.5mm, the vortex forming percentage and the vortex percentage of the water mist 2 both continuously increase, the vortex forming percentage increases from 30% to 100%, and the vortex percentage increases from 5% to 40%.

Specifically, as shown in fig. 10, when the axial length of the swirl section 11 is 1.5mm, the space for forming the swirl is relatively small, the water mist flows out of the air outlet without forming the swirl, and the water mist participating in forming the swirl is relatively small; as shown in fig. 11, when the axial length of the vortex section 11 is 3mm, the axial space is enough for the water mist to form a complete vortex, and the water mist forming the vortex is more and a very complete vortex is formed; as shown in fig. 12, when the axial length of the vortex section 11 is 4.5mm, the vortex is still complete, and the percentage participating in the vortex formation is basically unchanged, but the step hole is too long, so that the steam is cooled, and the visual effect of steam ejection is reduced. Due to the excessively long axial length of the swirl section 11, a part of the water mist 2 is cooled, which in turn reduces the visual effect of the water mist 2.

In summary, when the axial length of the vortex section 11 is 1.5mm to 4.5mm, the ratio of the formed vortex angle of the water mist 2 in the expanding section to the complete circle is high, and the percentage of the water mist 2 participating in the formation of the vortex is also high, so that more water mist 2 can form a vortex with a larger angle, and the sound emitted by the water mist 2 is improved. And when the axial length of the vortex section 11 is 3mm, the visual effect and the auditory effect of the water mist 2 are good, so that the audio-visual effect of the water mist 2 is effectively improved.

In one embodiment of the present disclosure, the flow rate of the ejection sections 12 is 0.67g to 1g/min, that is, the mass of the water mist 2 ejected by each ejection section 12 per minute is 0.67g to 1g, so that the sufficient flow rate of the water mist 2 at the air injection hole 1 can be maintained, thereby forming sufficient vortex, and ensuring the audio-visual effect of the water mist 2, and the flow rate of the water mist 2 is too large, so that the water content in the water mist is large, and the working surface to be cleaned is wet.

Similarly, in an embodiment of the disclosure, the temperature of the water mist 2 at the gas injection hole 1 is maintained at 95 ℃ to 102 ℃, so that the cleaning effect of the water mist 2 can be effectively improved, and the working surface to be cleaned is not damaged due to overhigh temperature.

The present disclosure also provides a showerhead assembly 10, and the structure and effect of the showerhead assembly 10 are referred to above and will not be described herein again. The nozzle assembly 10 of the present disclosure may be applied to other apparatuses requiring water mist spraying, such as an eye fumigating apparatus, a garment steamer, etc., as well as the above-mentioned cleaning apparatus, and is not listed here.

Application scenario one

The present disclosure provides a cleaning apparatus that may include a heating device and a showerhead assembly 10. Wherein the heating device is configured to heat water to generate a water mist 2; the spray head assembly 10 is provided with at least one air injection hole 1, and each air injection hole 1 is communicated with an air outlet of the heating device.

Specifically, the gas injection hole 1 comprises a vortex section 11 and a spraying section 12 which are communicated with each other, and the water mist 2 generated by the heating device is configured to be sprayed out through the vortex section 11 and the spraying section 12 in sequence, wherein a blocking surface 111 for reflecting the gas flow is arranged in the vortex section 11. The ejection section 12 and the swirl section 11 are cylindrical holes respectively, the inner diameter of the ejection section 12 is smaller than that of the swirl section 11, and the blocking surface 111 is a step surface formed at the connection position of the ejection section 12 and the swirl section 11. Because the blocking surface 111 is a step surface formed at the connecting position of the spraying section 12 and the vortex section 11, the water mist 2 is blocked by the step surface after entering the vortex section 11, and the space in the vortex section 11 is large, so that a vortex with a large degree is formed, and a large sound is emitted, so that the water mist 2 can be heard by a user, and the user can know that the cleaning equipment normally sprays the water mist 2, so that the use experience of the user is improved; and when the cleaning equipment does not normally spray the water mist 2 and cannot make a sound, the user can also find the water mist in time and overhaul the cleaning equipment.

Further, the inner diameter of the vortex section 11 is 1.5mm to 3.5mm, the inner diameter of the ejection section 12 is 1mm to 1.5mm, and the axial length of the vortex section 11 is 1.5mm to 4.5mm; thus, the ratio of the formed vortex angle of the water mist 2 in the diameter expansion section to the whole circle is higher, and the percentage of the water mist 2 participating in the vortex formation is also higher, so that more water mist 2 can form a vortex with a larger angle, and the sound emitted by the water mist 2 is improved.

Application scenario two

The present disclosure provides a cleaning apparatus that may include a heating device and a showerhead assembly 10. Wherein the heating device is configured to heat water to generate a water mist 2; the spray head assembly 10 is provided with at least one air injection hole 1, and each air injection hole 1 is communicated with an air outlet of the heating device.

Specifically, the gas injection hole 1 comprises a vortex section 11 and a spraying section 12 which are communicated with each other, and the water mist 2 generated by the heating device is configured to be sprayed out through the vortex section 11 and the spraying section 12 in sequence, wherein a blocking surface 111 for reflecting the gas flow is arranged in the vortex section 11. The scroll section 11 has a frustum shape, and opposite ends thereof are respectively denoted as a first end and a second end having an inner diameter larger than the first end, wherein the discharge section 12 is configured to be connected to the first end of the scroll section 11, and the blocking surface 111 is an inclined inner wall of the scroll section 11. Because the inclined inner wall is arranged in the vortex section 11, the water mist 2 can be blocked by the inclined inner wall after entering the vortex section 11, so that a certain degree of vortex is formed, and then the sound is produced.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (11)

1. A cleaning apparatus, comprising:

a heating device configured to heat water to produce a mist (2);

the spray head assembly (10), the spray head assembly (10) is provided with at least one air injection hole (1), the air injection hole (1) comprises a vortex section (11) and a spraying section (12) which are communicated with each other, and the water mist (2) generated by the heating device is configured to be sprayed out through the vortex section (11) and the spraying section (12) in sequence; wherein a blocking surface (111) for reflecting the air flow is arranged in the vortex section (11).

2. The cleaning apparatus according to claim 1, wherein the vortex section (11) is frustum-shaped, with opposite ends respectively designated as first ends and a second end having an inner diameter greater than the first end; the ejection section (12) is configured to be connected with a first end of the swirl section (11); the blocking surface (111) is an inclined inner wall of the swirl section (11).

3. The cleaning device according to claim 1, wherein the ejection section (12), the swirl section (11) are each cylindrical; the inner diameter of the spraying section (12) is smaller than that of the vortex section (11), and the blocking surface (111) is a step surface formed at the connecting position of the spraying section (12) and the vortex section (11).

4. A cleaning device according to claim 3, wherein the ejection section (12) is arranged coaxially with the swirl section (11).

5. A cleaning device according to claim 3, wherein the inner diameter of the swirl section (11) is 1.5mm to 3.5mm and the inner diameter of the ejection section (12) is 1mm to 1.5mm.

6. A cleaning device as claimed in claim 5, characterised in that the inner diameter of the swirl section (11) is 2.5mm.

7. A cleaning apparatus according to claim 5, wherein the axial length of the swirl section (11) is from 1.5mm to 4.5mm.

8. A cleaning device as claimed in claim 7, characterised in that the axial length of the swirl section (11) is 3mm.

9. A cleaning device as claimed in any one of claims 1 to 8, characterized in that the flow rate of the ejection section (12) is 0.67g to 1g/min.

10. The cleaning apparatus as claimed in any of claims 1 to 8, characterized in that the temperature of the water mist (2) at the air injection holes (1) is maintained at 95 ℃ to 102 ℃.

11. A spray head assembly, characterized in that the spray head assembly is provided with at least one air injection hole (1), the air injection hole (1) comprises a vortex section (11) and an ejection section (12) which are communicated with each other, and water mist (2) is configured to be ejected through the vortex section (11) and the ejection section (12) in sequence; wherein a blocking surface (111) for reflecting the air flow is arranged in the vortex section (11).

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