CN218232840U

CN218232840U - Atomizing and spraying device and clothes treatment equipment

Info

Publication number: CN218232840U
Application number: CN202222183037.5U
Authority: CN
Inventors: 刘洪刚; 崔阅馨; 王嘉; 周存玲; 朱晓伟
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-06
Anticipated expiration: 2032-08-18

Abstract

The embodiment of the application provides an atomizing and spraying device and clothes treatment equipment, wherein the atomizing and spraying device comprises a main body part, an atomizing core and a cover body, and the main body part is provided with an opening; the atomizing core is provided with a jet orifice for jetting the atomized dry cleaning agent; lid detachably lid is located the opening part, the lid with the main part is injectd jointly and is used for holding the installation cavity of atomizing core, atomizing core detachably set up in the installation cavity. According to the atomizing and spraying device, the mounting direction of the cover body is consistent with that of the atomizing core, and the cover body and the atomizing core are assembled along the length direction of the atomizing core, so that the atomizing core and the cover body can be assembled and disassembled conveniently; the atomizing core is convenient to replace and maintain.

Description

Atomizing and spraying device and clothes treatment equipment

Technical Field

The application relates to the technical field of clothes washing and protection, in particular to an atomizing and spraying device and clothes treatment equipment.

Background

Taking a clothes treating apparatus as an example, in the related art, an atomizing nozzle of a clothes treating apparatus is easily clogged and is difficult to clean, and thus, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application are intended to provide an atomizing spray device and a laundry treating apparatus which are easy to assemble and disassemble.

The embodiment of the present application provides an atomizing injection apparatus, includes:

a main body portion having an opening;

an atomizing core having an ejection port for ejecting an atomized dry cleaning agent;

the lid, detachably lid is located the opening part, the lid with the main part is injectd jointly and is used for holding the installation cavity of atomizing core, atomizing core detachably set up in the installation cavity.

In some embodiments, the body portion has a first flow passage and a second flow passage that are independent of each other; the second flow passage is used for introducing liquid dry cleaning agent, and the first flow passage is used for introducing gas;

the atomization core is used for mixing the liquid dry cleaning agent and the gas in a gas-liquid mode, atomizing the gas-liquid two-phase mixture and then spraying the atomized gas-liquid two-phase mixture out of the spray opening.

In some embodiments, a circumferential surface of a partial shaft section of the atomizing core and an inner wall of the installation cavity are spaced from each other and form a liquid inlet passage, and the liquid inlet passage communicates an outlet of the second flow passage and an inner space of the atomizing core.

In some embodiments, the liquid inlet passage includes a premixing area, the outlet of the second flow channel is disposed on the sidewall of the premixing area, and the atomizing and spraying device has a gas inlet micro-channel, which communicates the premixing area with the external environment of the atomizing and spraying device, so that the dry cleaning agent can be premixed in the premixing area.

In some embodiments, the liquid inlet passage comprises a flow control region, and the flow cross-sectional area of the premixing region is greater than the flow cross-sectional area of the flow control region.

In some embodiments, the atomizing core has a venturi flow passage, a venturi negative pressure suction port, and a jet orifice, the first flow passage is communicated to an inlet of the venturi flow passage, the second flow passage is communicated to the venturi negative pressure suction port, and fluid of the venturi flow passage is ejected through the jet orifice.

In some embodiments, the main body portion is provided with a first receiving groove communicating with the opening, the first receiving groove constituting at least a part of the mounting cavity.

In some embodiments, the cover body has a second receiving groove, a portion of the atomizing core is inserted into the first receiving groove, and another portion of the atomizing core is inserted into the second receiving groove.

In some embodiments, the tank bottom of first holding tank has the first locating surface that encircles the export of first runner, the tank bottom of second holding tank has the mouth of dodging that is used for dodging the jet orifice of atomizing core and encircles the second locating surface of dodging the mouth, the lid with main part threaded connection, and will the relative both ends centre gripping of atomizing core is in first locating surface with between the second locating surface.

In some embodiments, the threaded engagement of the cap body and the body portion forms an air inlet microchannel.

In some embodiments, the groove bottom of the first holding tank has a positioning ring platform, the first positioning surface surrounds the positioning ring platform, an annular slot is defined by the circumferential surface of the positioning ring platform and the circumferential inner wall of the first holding tank, and one end of the atomizing core is inserted into the annular slot.

In some embodiments, the circumference surface of the atomizing core that is close to the one end of the export of first runner is provided with the annular, atomizing injection apparatus includes the sealing washer, the sealing washer set up in the annular, and with the sealed butt of the circumference inner wall of first holding tank.

In some embodiments, along the fluid flowing direction of the first flow channel, the atomizing core comprises an inlet shaft section, a necking shaft section and an outlet shaft section which are sequentially arranged, a premixing area is formed between the necking shaft section and the inner wall of the mounting cavity, the venturi negative pressure suction port is arranged on the outlet shaft section, and the outlet of the second flow channel is arranged on the side wall of the premixing area.

In some embodiments, a minimum flow cross-sectional area of a gap between the outlet shaft section and the circumferential surface of the mounting cavity is less than a sum of flow cross-sectional areas of the venturi negative pressure suction ports.

In some embodiments, the main body includes a first cylinder and a second cylinder, the second cylinder and the cover are connected to opposite ends of the first cylinder in a longitudinal direction, the atomizing core, the first cylinder and the cover extend in the same direction, and the second cylinder is disposed to be inclined with respect to the first cylinder.

In some embodiments, an included angle between an extending direction of the first tube portion and an extending direction of the second tube portion is 110 ° to 150 °.

In some embodiments, the atomizing core is removably coupled to the cap.

In some embodiments, the atomizing core is a metallic member.

An embodiment of the present application provides a laundry treatment apparatus, including:

a laundry treating drum having a laundry treating chamber;

a dry cleaning agent pathway;

and the atomizing and spraying device of any embodiment of the application, the dry cleaning agent passage is communicated with the flow channel in the atomizing and spraying device, and the atomizing and spraying device is used for spraying atomized dry cleaning agent to the clothes treatment cylinder.

In some embodiments, the laundry treating apparatus includes a front support provided at a front end of the laundry treating drum, the front support having a through hole, a portion of the main body and the cover passing through the through hole and protruding into a side of the front support facing the laundry treating chamber.

In some embodiments, the atomized spraying device intermittently sprays the atomized dry cleaning agent in a gas-liquid mixture.

In some embodiments, the laundry treatment apparatus includes a dry-cleaning agent container for storing a liquid dry-cleaning agent, the dry-cleaning agent passage communicates with the dry-cleaning agent container, and the height difference between the atomization spray device and the dry-cleaning agent container is 10-120 cm.

In some embodiments, the laundry treating apparatus includes a gas pump that supplies gas for atomizing the dry detergent to the atomizing spray device, and the gas pump is a pulse gas pump that supplies gas to the atomizing spray device intermittently.

Use main part and atomizing core to be two independent spare parts as the example, in the assembling process, put into first holding tank with the atomizing core from the opening, it can to cover the lid. When the atomizing core is blocked, aged and the like, the cover body can be opened, the atomizing core is taken out, and the atomizing core is replaced by a new one.

Use main part and atomizing core as the whole of an inseparable as an example, in the assembling process, when covering the lid, put into the installation cavity with the atomizing core from the opening simultaneously, fixed lid can. When the atomization core is blocked, aged and the like, the cover body is opened, the atomization core is taken out, and a new atomization core and the whole component of the cover body are replaced.

According to the atomizing and spraying device, the mounting direction of the cover body is consistent with that of the atomizing core, and the cover body and the atomizing core are assembled along the length direction of the atomizing core, so that the atomizing core and the cover body can be assembled and disassembled conveniently; the atomizing core is convenient to replace and maintain.

Drawings

FIG. 1 is a schematic structural diagram of an atomizing spray device according to an embodiment of the present application;

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

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 3;

FIG. 5 is a schematic view of the atomizing core of FIG. 4 without the atomizing core;

FIG. 6 is an enlarged partial view of FIG. 4 at B;

FIG. 7 is a schematic structural diagram of an atomizing spray device according to an embodiment of the present application;

fig. 8 is a partial structural view of a laundry treating apparatus according to an embodiment of the present application;

FIG. 9 is a schematic view of FIG. 8 with the base omitted;

FIG. 10 is a schematic view of a front support and laundry treatment drum according to an embodiment of the present application;

FIG. 11 is a schematic view from another perspective of the structure shown in FIG. 10;

FIG. 12 is a cross-sectional view taken along the line C-C in FIG. 11;

fig. 13 is a partially enlarged view of fig. 12 at D.

Description of the reference numerals

An atomizing spray device 100; a main body portion 11; the first flow path 11a; the second flow path 11b; a mounting cavity 11c; a pre-mixing zone 11d; a flow control region 11f; a first cylindrical portion 111; a second cylindrical portion 112; the first receiving groove 111a; a first positioning surface 111b; an annular slot 111c; a positioning ring 1111; a third cylinder 113; a stopper plate 114; a lid 12; the second accommodation grooves 12a; a second positioning surface 12b; an avoidance port 12c;

an atomizing core 2; a venturi flow passage 201; a constriction 2011; a throat section 2012; an expansion segment 2013; an inlet shaft section 21; the ring grooves 21a; a neck shaft segment 22; an outlet shaft section 23; the venturi negative pressure suction port 23a; the ejection port 23b; a seal ring 3;

a front support 200; a laundry access opening 200a; a through hole 200b; the air holes 200c; an air duct 200d; a laundry treating drum 300; the laundry treating chamber 300a;

an air pump 400; a first conduit 601; a second conduit 602; a dry cleaning agent container 600; a base 500;

Detailed Description

Embodiments of the present application will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, cannot be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

An atomizing spray device 100 according to an embodiment of the present application, please refer to fig. 1, fig. 2, and fig. 7, which includes a main body 11, a cover 12, and an atomizing core 2.

The atomizing core 2 has a jet port 23b for jetting the atomized dry cleaning agent, and the atomizing and jetting means is used for atomizing the dry cleaning agent introduced into the atomizing and jetting means through the atomizing core 2 and then jetting the atomized dry cleaning agent from the jet port 23b. It will be appreciated that the atomiser spray device may also be used to spray other liquids.

Referring to fig. 5, the main body 11 has an opening.

Referring to fig. 4, the cover 12 is detachably disposed on the opening, and the cover 12 and the main body 11 jointly define a mounting cavity 11c for accommodating the atomizing core 2. That is, after the atomizing core 2 is inserted into the mounting cavity 11c from the opening, it may be removed from the mounting cavity 11c, and the cover 12 may be detached from the body 11.

That is, the cover 12 and the body 11 are two separate parts, and the body 11 and the atomizing core 2 are two separate parts. However, the cover 12 and the atomizing core 2 may be fixed together, or may be two separate parts.

Taking the main body 11 and the atomizing core 2 as two independent parts as an example, in the assembling process, the atomizing core 2 is put into the mounting cavity 11c from the opening, and the cover body 12 is covered. When the atomizing core 2 is blocked, aged and the like, the cover body 12 can be opened, the atomizing core 2 is taken out, and a new atomizing core 2 is replaced.

Taking the cover body 12 and the atomizing core 2 as an inseparable whole as an example, in the assembling process, when the cover body 12 is covered, the atomizing core 2 is placed into the mounting cavity 11c from the opening, and the cover body 12 is fixed. When the atomizing core 2 is clogged or aged, the atomizing core 2 is taken out while the cover 12 is opened, and the whole member of the atomizing core 2 and the cover 12 is replaced with a new one.

In the atomizing injection device 100 according to the embodiment of the present application, the mounting direction of the cover 12 is the same as the mounting direction of the atomizing core 2, and the atomizing core 2 is assembled along the length direction of the atomizing core 2, so that the atomizing core 2 and the cover 12 can be assembled and disassembled conveniently; the atomizing core 2 is convenient to replace and maintain. The embodiment of the application provides a clothes treatment device, please refer to fig. 10, which comprises a clothes treatment drum 300, a dry cleaning agent passage and an atomizing and spraying device 100 of any embodiment of the application.

The laundry treating drum 300 has a laundry treating chamber 300a. The laundry treating chamber 300a is for placing laundry.

The dry cleaning agent passage is communicated with a flow passage in an atomizing and spraying device for spraying atomized dry cleaning agent to the laundry treating drum 300.

In the clothes treating apparatus of the embodiment of the present application, the atomizing spray device 100 can atomize the dry cleaning agent and spray the atomized dry cleaning agent onto the surface of the clothes in the clothes treating cavity 300a, so as to make the dry cleaning agent contact and dissolve the stains on the surface of the clothes, thereby achieving the effects of caring, removing wrinkles, removing odor, and the like of the clothes in the clothes treating cavity 300a. In addition, since the atomizing spray device 100 is easily disassembled and assembled, it is advantageous to promote after-sales service of the laundry treating apparatus.

Referring to fig. 4 and 5, the main body 11 has a first flow passage 11a and a second flow passage 11b, which are independent of each other. The first flow channel 11a and the second flow channel 11b may be respectively filled with different fluid media.

Illustratively, the first flow passage 11a is used for introducing gas, and the second flow passage 11b is used for introducing liquid dry cleaning agent.

The atomizing core 2 is used for mixing the liquid dry cleaning agent and the gas in a gas-liquid manner, atomizing the gas-liquid two-phase mixture, and then spraying the atomized gas-liquid two-phase mixture from the spraying opening 23b.

In the embodiment, the dry cleaning agent is carried by the gas and atomized by the atomizing and spraying device 100 to be sprayed to the clothes, and the gas is used as an atomizing carrier of the dry cleaning agent, so that the water content of the clothes is not increased in the spraying process of the dry cleaning agent, the clothes can be kept at a lower water content level, the subsequent drying time is conveniently reduced, the time of a dry cleaning procedure is shortened, the energy is saved, and the dry cleaning efficiency is improved; in addition, the gas can be convenient for the dry cleaning agent to be fully atomized, and the dry cleaning agent is promoted to be changed into high-energy activated molecules so that the high-energy activated molecules can enter micron-sized fiber gaps without hindrance, and deep decontamination is achieved.

Illustratively, a circumferential surface of a partial shaft section of the atomizing core 2 is spaced from an inner wall of the mounting chamber 11c and forms an inlet passage that communicates an outlet of the second flow channel 11b and an inner space of the atomizing core 2.

In the embodiment, the dry cleaning agent enters the liquid inlet passage from the second flow passage 11b, flows along the liquid inlet passage, finally enters the inner space of the atomizing core 2, and is mixed with the gas from the first flow passage 11a in a gas-liquid two-phase manner, so that the liquid inlet passage plays a role of a flow passage of the dry cleaning agent, the dry cleaning agent from the second flow passage is guided to the atomizing core 2, an independent passage is avoided, the structure is simplified, and the structure of the atomizing and spraying device is simpler and more compact; in addition, the dry cleaning agent can flow along the circumferential surface of the atomizing core 2, so that more flow paths can be provided, and the flow of the dry cleaning agent is facilitated.

Illustratively, referring to fig. 4 and 6, along the length direction of the atomizing core 2, the liquid inlet passage includes a premixing area 11d and a flow control area 11f, and the flow cross-sectional area of the premixing area 11d is larger than that of the flow control area 11 f. Flow control district 11 f's flow cross sectional area is less for the flow of the dry cleaning agent of the inner space of control entering atomizing core 2, make the flow that flows to atomizing core 2 inside through flow control district 11f comparatively steady, undulant little, change atomizing core 2 and control the atomizing flow of dry cleaning agent more accurately.

The outlet 11b ″ of the second flow channel 11b is arranged on the side wall of the premixing area 11d, and the atomizing and spraying device is provided with an air inlet micro-channel which is communicated with the premixing area 11d and the external environment of the atomizing and spraying device, so that the dry cleaning agent can realize gas-liquid two-phase premixing in the premixing area 11 d.

The dry cleaning agent in the second flow passage 11b is basically a continuous liquid phase, the liquid dry cleaning agent enters the premixing area 11d, and primary premixing is carried out between the premixing area 11d and the air in the premixing area 11d to form a gas-liquid premixed two-phase flow. It will be appreciated that the dry cleaning agent, when entering the inner space of the atomizing core 2, undergoes secondary premixing with the air flow from the first flow passage 11a. The primary premixing provides favorable conditions for the secondary premixing, and the dry cleaning agent is conveniently and fully mixed with air during the secondary premixing.

The inlet microchannels only allow gas flow from the outside into the premixing zone 11d, and liquid in the premixing zone 11d does not flow to the outside environment through the inlet microchannels.

It can be understood that, as the gas-liquid two-phase flow in the liquid inlet passage continuously flows to the inner space of the atomizing core 2, the premixing zone 11d forms negative pressure to continuously suck the external air from the air inlet micro-channel, thereby realizing continuous premixing of the continuous dry cleaning agent.

Illustratively, the extending direction of the end of the second flow channel 11b and the length direction of the atomizing core 2 form an angle of 30 ° to 90 °, for example, 30 °, 35 °, 45 °, 60 °, 80 °, 90 °, and the like.

In this embodiment, when liquid dry cleaning agent flowed to premixed district 11d from second flow channel 11b, liquid dry cleaning agent is under the effect of flow inertia, encircles atomizing core 2 spiral and advances, and like this, liquid dry cleaning agent can be drawn into more spaces, forms tiny liquid globule, and the air content is better, mixes the effect in advance better.

For example, in some embodiments, the end of the second flow channel 11b extends at an angle of 40 ° to 60 ° with respect to the longitudinal direction of the atomizing core 2. Referring to fig. 4 and fig. 6, the atomizing core 2 has a venturi flow channel 201, an injection port 23b, and a venturi negative pressure suction port 23a, the first flow channel 11a is connected to an inlet of the venturi flow channel 201, and the second flow channel 11b is connected to the venturi negative pressure suction port 23a.

The fluid in the venturi flow passage 201 is ejected through the ejection port 23b. That is, the fluid in the first flow path 11a and the fluid in the second flow path 11b converge in the venturi flow path 201 and are ejected from the ejection port 23b together.

For example, a first fluid medium is introduced into the first flow passage 11a and flows through the venturi flow passage 201, during the process of flowing through the venturi flow passage 201, a negative pressure is generated at the venturi negative pressure suction port 23a based on the venturi effect, a second fluid medium in the second flow passage 11b is sucked into the venturi flow passage 201 from the second flow passage 11b under the negative pressure, and the first fluid medium and the second fluid medium are ejected together from the ejection port 23b of the atomizing core 2.

Referring to fig. 5, the cover 12 is provided with an escape opening 12c, and the escape opening 12c escapes from the injection port 23b of the atomizing core 2.

The atomizing and spraying device 100 of the embodiment of the application has the advantages that the venturi negative pressure suction port 23a and the spraying port 23b are concentrated on the atomizing core 2, the atomizing core 2 is equivalent to a venturi tube, the size, the shape and the like of the flow channel inside the atomizing core and the spraying port 23b determine the form and the spraying speed of sprayed mist, the influence of the assembling errors of the main body part 11, the cover body 12 and the atomizing core 2 on the spraying effect is relatively small, and therefore, as long as the batch consistency of the atomizing core 2 is controlled, the atomizing and spraying device 100 can have good batch consistency.

In some embodiments, the atomizing core 2 and the cover 12 are non-detachably connected, for example, integrally injection molded, or integrally formed by metal. The atomizing core 2 is also removed simultaneously with the opening of the cover 12.

In other embodiments, the atomizing core 2 is detachably connected to the cover 12. When needing to be changed atomizing core 2, open lid 12 earlier, take out atomizing core 2 again, perhaps atomizing core 2 is connected on lid 12, when taking off lid 12, atomizing core 2 takes off along with lid 12 together, again with atomizing core 2 follow lid 12 demolish can. In this way, when the atomizing core 2 is replaced, the cover 12 does not need to be replaced.

The material of the atomizing core 2 is not limited, and may be, for example, ceramic, plastic, or the like.

Illustratively, the atomizing core 2 is a metal piece, that is, the atomizing core 2 is made of a metal material. So, be convenient for control atomizing core 2's size in manufacturing process, metal material can control better dimensional accuracy and error in the course of working, ensures atomizing core 2's dimensional accuracy and batch uniformity.

Illustratively, the atomizing core 2 is a one-piece structure. Of course, the atomizing core 2 can also be of a split construction.

Illustratively, the cover 12 is a one-piece structure, e.g., integrally injection molded. The integrated cover body 12 can reduce the number of parts, reduce the assembly time and improve the assembly efficiency

Of course, the cover 12 may be a split structure.

Illustratively, the body portion 11 is of unitary construction, e.g., integrally injection molded. The main part 11 of integral type can reduce spare part quantity, reduces the assemble duration, promotes assembly efficiency.

Of course, the main body 11 may be a split structure.

For example, referring to fig. 5, the main body 11 is provided with a first receiving groove 111a, and the first receiving groove 111a is communicated with an opening, for example, one side of the first receiving groove 111a is opened and forms an opening. The first accommodation groove 111a constitutes at least a part of the mounting cavity 11c. In this embodiment, at least a part of the atomizing core 2 is accommodated in the first accommodating groove 111a of the main body 11, and the first accommodating groove 111a limits at least the atomizing core 2, which is favorable for improving the installation reliability of the atomizing core 2.

For example, referring to fig. 5, the cover 12 has a second receiving groove 12a, and the second receiving groove 12a and the first receiving groove 111a are butted along the length direction of the atomizing core 2. Referring to fig. 4, a portion of the atomizing core 2 is inserted into the first receiving groove 111a, and another portion of the atomizing core 2 is inserted into the second receiving groove 12 a. That is, the first accommodation groove 111a and the second accommodation groove 12a together define a mounting cavity 11c for mounting the atomizing core 2, and thus the cover body 12 and the body portion 11 together accommodate the atomizing core 2, taking into account the dimensions of the body portion 11 and the cover body 12 in the longitudinal direction of the atomizing core 2.

The manner of mounting and positioning of the cover 12 in the first accommodation groove 111a and the second accommodation groove 12a is not limited.

Referring to fig. 5, the bottom of the first receiving groove 111a has a first positioning surface 111b surrounding the outlet of the first flow channel 11a, the bottom of the second receiving groove 12a has an escape opening 12c for escaping the ejection opening 23b of the atomizing core 2 and a second positioning surface 12b surrounding the escape opening 12c, and the cover 12 is screwed to the main body 11 and clamps opposite ends of the atomizing core 2 between the first positioning surface 111b and the second positioning surface 12 b.

During screwing of the cover body 12 onto the main body portion 11, the distance between the first positioning surface 111b and the second positioning surface 12b gradually decreases until the opposite ends of the atomizing core 2 are clamped against the first positioning surface 111b and the second positioning surface 12 b. Because the threaded connection can realize the continuous adjustment of the distance between the first positioning surface 111b and the second positioning surface 12b, the threaded connection between the cover body 12 and the main body 11 can clamp the atomizing core 2 between the two regardless of the error in the length of the atomizing core 2, and the gap between the two opposite ends of the atomizing core 2 and the first positioning surface 111b and the second positioning surface 12b is eliminated.

In this embodiment, the cover 12 and the main body 11 are only required to clamp the atomizing core 2, and fastening with a fastener such as a screw is not required. When the cover body 12 is unscrewed, the atomizing core 2 may be directly drawn out from the opening of the first housing groove 111a. When the needs assemble, insert atomizing core 2 from the opening first holding tank 111a, it can to screw up lid 12 afterwards, it is all more convenient to dismantle and assemble.

Referring to fig. 2, an end of the cap body 12 close to the main body 11 is formed with a threaded segment 121, and the threaded segment 121 extends into the first receiving groove 111a from the opening and is matched with an internal thread on an inner wall of the first receiving groove 111a.

In other embodiments, an external thread may be disposed at one end of the main body 11 close to the cover 12, an internal thread may be disposed on an inner wall of the cover 12, and the cover 12 is sleeved on the circumferential outer side of the main body 11.

When the air flows through the venturi flow passage 201, negative pressure is generated in the venturi negative pressure suction port 23a, the liquid is sucked into the venturi flow passage 201 from the venturi negative pressure suction port 23a, the air and the liquid are mixed in the venturi flow passage 201, and mist of gas-liquid mixture is ejected from the ejection port 23b.

For example, referring to fig. 5, the groove bottom of the first receiving groove 111a has a positioning ring platform 1111, the first positioning surface 111b surrounds the positioning ring platform 1111, a circumferential surface of the positioning ring platform 1111 and a circumferential inner wall of the first receiving groove 111a define an annular slot 111c, and referring to fig. 4, one end of the atomizing core 2 is inserted into the annular slot 111 c. It can be understood that the venturi channel 201 extends through the atomizing core 2 along the length direction, and when the atomizing core 2 is inserted into the annular slot 111c, the outlet 11a ″ of the first channel 11a is aligned with and communicates with the inlet of the venturi channel 201.

The groove bottom of the first accommodation groove 111a refers to a side of the first accommodation groove 111a away from the opening.

In this embodiment, the positioning ring 1111 better positions the atomizing core 2 to prevent the atomizing core 2 from moving in the first receiving groove 111a along any side perpendicular to the length direction of the atomizing core 2, and during the assembling process, the atomizing core 2 can be accurately inserted into the correct position, so that the inlet of the venturi channel 201 is aligned with the outlet 11a ″ of the first channel 11a.

For example, referring to fig. 2, the circumferential outer surface of one end of the atomizing core 2 near the outlet 11a ″ of the first flow passage 11a is provided with a ring groove 21a, i.e., the ring groove 21a surrounds the circumferential surface of the outer part of the atomizing core 2. The atomizing injection device 100 includes the seal ring 3, and the seal ring 3 is disposed in the annular groove 21a and is in sealing contact with the circumferential inner wall of the first housing groove 111a. The seal ring 3 can enhance the sealing performance between the atomizing core 2 and the circumferential inner wall of the first housing groove 111a, and reduce the possibility that the fluid in the first flow passage 11a will flow into the second flow passage 11b along the gap between the atomizing core 2 and the circumferential inner wall of the first housing groove 111a.

Referring to fig. 2, the atomizing core 2 includes an inlet shaft segment 21, a neck shaft segment 22 and an outlet shaft segment 23, which are sequentially arranged along the fluid flowing direction of the first flow channel 11a. The neck shaft segment 22 has an outer diameter that is smaller than the outer diameter of the inlet shaft segment 21 and smaller than the outer diameter of the outlet shaft segment 23. That is, the atomizing core 2 has a structure with two large ends and a small middle.

The inlet shaft segment 21 is inserted into the first accommodation groove 111a, and the outer surface of the inlet shaft segment 21 is in sealing engagement with the circumferential inner wall of the first accommodation groove 111a. For example, the inlet shaft segment 21 is inserted into the annular slot 111c described above. The aforementioned ring groove 21a is provided in the circumferential surface of the inlet shaft section 21.

The outlet shaft section 23 is inserted into the second accommodation groove 12a, the venturi negative pressure suction port 23a is provided in the outlet shaft section 23, and the outlet 11b ″ of the second flow passage 11b is provided on the circumferential inner wall of the first accommodation groove 111a.

The gap between the neck shaft segment 22 and the circumferential inner wall of the mounting cavity 11c is a first gap, and the gap between the outlet shaft segment 23 and the circumferential inner wall of the second receiving groove 12a is a second gap, wherein the first gap is larger than the second gap.

Referring to fig. 4, the region between the circumferential surface of the neck shaft segment 22 and the circumferential inner wall of the mounting cavity 11c forms a premixing zone 11d, and the outlet 11b ″ of the second flow passage 11b is disposed on the sidewall of the premixing zone 11d, i.e., on the sidewall of the first receiving groove 111a within the length range corresponding to the premixing zone 11 d.

The dry cleaning agent from the second flow passage 11b enters the premixing area 11d and is premixed with the air in the premixing area 11d, so that the liquid can be more efficiently mixed with the air flow from the first flow passage 11a after entering the venturi flow passage 201 from the venturi negative pressure suction port 23a, and the size of the mist beads sprayed from the spray port 23b is smaller and more uniform.

The number of the venturi negative pressure suction ports 23a is not limited, and may be one or more, for example.

Illustratively, the minimum flow cross-sectional area of the region between the outlet shaft section 23 and the circumferential inner wall of the second accommodation groove 12a is smaller than the sum of the flow cross-sectional areas of the venturi negative pressure suction ports 23a. In this way, the total flow rate entering the venturi flow passage 201 from the second flow passage 11b depends on the minimum flow cross-sectional area of the region between the outlet shaft section 23 and the circumferential inner wall of the second housing groove 12a, which can be controlled by the dimensional clearance between the outlet shaft section 23 and the second housing groove 12a, the size of the venturi negative pressure suction port 23a itself is small, and it is difficult to control the accuracy of the small size during the manufacturing process, whereas in this embodiment, it is much easier to control by the dimensional clearance between the outlet shaft section 23 and the second housing groove 12a, and thus, the manufacturing accuracy requirement and the process requirement can be reduced, and the cost can be reduced while the accuracy of the atomizing injection device 100 is secured.

Illustratively, the threaded engagement of the cap 12 and the body 11 forms an inlet microchannel in communication with the inlet passage. That is, the screw-fitting of the cover body 12 to the main body 11 does not provide a complete airtight seal, but a small amount of gas can be allowed to flow from the screw gap into the joint of the first receiving groove 111a and the second receiving groove 12 a.

Illustratively, the screw thread interface between the main body 11 and the cover 12 is located on the sidewall corresponding to the premixing area 11d, that is, on the sidewall of the mounting cavity 11c corresponding to the necking shaft segment 22. In this way, during the injection process, the external air is continuously sucked into the premixing area 11d from the screw thread butt joint, so that the liquid entering from the second flow passage 11b can be well premixed with the air in the premixing area 11 d.

The specific structure of the main body 11 is not limited.

For example, referring to fig. 1, 2, and 7, the main body 11 includes a first cylinder 111 and a second cylinder 112. The second cylindrical portion 112 and the lid 12 are connected to opposite ends of the first cylindrical portion 111 in the longitudinal direction. Specifically, the lid 12 is connected to a first end of the first cylindrical portion 111, and the second cylindrical portion 112 is connected to a second end of the first cylindrical portion 111.

The atomizing core 2, the first cylindrical portion 111, and the cover 12 extend in the same direction, that is, the extending direction of the atomizing core 2, the extending direction of the first cylindrical portion 111, and the extending direction of the cover 12 are the same.

The first accommodation groove 111a is formed in the first tube portion 111 and extends in the longitudinal direction of the atomizing core 2, and an opening of the first accommodation groove 111a is formed in an end surface of the first end of the first tube portion 111.

The first flow path 11a extends from the second cylinder portion 112 to the first accommodation groove 111a in the first cylinder portion 111.

The second cylindrical portion 112 is provided obliquely to the first cylindrical portion 111. In this embodiment, the direction of the connecting pipe portion of the second cylinder portion 112 forms a certain angle with the spraying direction of the atomizing core 2, which facilitates the connecting pipe and also facilitates the inclined spraying of mist. For example, the second cylinder 112 substantially horizontally takes over, and the atomizing core 2 sprays mist substantially obliquely downward toward the target direction.

Illustratively, referring to fig. 1, 2, and 7, the main body 11 further includes a third barrel 113.

The third cylinder 113 is connected to a side wall of the first cylinder 1112, and a space in the third cylinder 113 defines the second flow path 11b.

The third cylindrical portion 113 is substantially parallel to the second cylindrical portion 112, that is, the third cylindrical portion 113 is also provided obliquely to the first cylindrical portion 111. In this way, the third cylinder 113 and the second cylinder 112 are arranged in the same direction, facilitating centralized pipe connection.

Illustratively, the included angle between the extending direction of the first tube portion 111 and the extending direction of the second tube portion 112 is 110 ° to 150 °, for example, 110 °, 113 °, 120 °, 125 °, 130 °, 137 °, 140 °, 144 °, 150 °. In this embodiment, when the first cylindrical portion 111 is arranged in the horizontal direction, the mist ejected from the atomizing core 2 can be ejected more obliquely downward.

Illustratively, referring to FIG. 6, venturi flowpath 201 includes a converging section 2011, a throat section 2012, and a diverging section 2013. The throat section 2012 connects the convergent section 2011 and the divergent section 2013. The venturi negative pressure suction port 23a is provided on the side wall of the expanding section 2013 corresponding to the portion near the throat section 2012. In the direction from the inlet of the venturi passage 201 to the jet port 23b, the flow cross-sectional area of the constricted section 2011 gradually decreases, and the flow cross-sectional area of the expanded section 2013 gradually increases. The flow cross-sectional area of throat section 2012 remains substantially constant. The end of the expanding section 2013 forms the ejection port 23b.

When gas flows in the venturi channel 201, in the process of flowing through the convergent section 2011, the flow cross-sectional area of the convergent section 2011 is gradually reduced, so that the flow rate of the gas flow is gradually increased, the static pressure is gradually reduced, when the gas flow flows to the throat section 2012, the flow rate of the gas flow reaches the maximum, and the static pressure reaches the minimum value, so that the gas flow can have a great flow rate near the outlet of the throat section 2012, and great suction force is conveniently generated. The venturi negative pressure suction port 23a is disposed on the side wall of the expansion section 2013 corresponding to the portion close to the throat section 2012, so that on one hand, the airflow can generate a large suction force at the portion, and on the other hand, after being sucked into the expansion section 2013 from the venturi negative pressure suction port 23a, the dry cleaning agent can smoothly flow to the jet opening 23b along the expansion section 2013 without being obstructed by the flow.

So, can obviously increase the speed and the energy that dry cleaning agent sprays to clothing surface, fast, kinetic energy is big, promotes in dry cleaning agent permeates the clothing fibre of micron order fast, deeply, promotes scrubbing efficiency.

Illustratively, the venturi channel 201 corresponding to the length of the outlet shaft segment 23 is composed of the converging section 2011, the throat section 2012 and the diverging section 2013.

Referring to fig. 6, the expansion angle θ of the expansion section 2013 is 8 ° to 15 °, for example, 8 °, 9 °, 10.5 °, 11.3 °, 12 °, 14 °, 15 °, etc., and the expansion angle range can control the pressure loss of the air flow within a small range, and the air flow can be in a distinct flow form when ejected from the ejection port 23b, so as to facilitate the atomized dry cleaning agent to be ejected to the clothes.

For example, referring to fig. 6, the venturi flow channel 201 has an inner diameter D at a position upstream of the constricted section 2011, and the throat section 2012 has a diameter D = D (1/3 × 1/4), so that on one hand, a relatively large airflow rate can be obtained, and on the other hand, the airflow rate can be considered, the atomization effect can be ensured, and the fluid from the second flow channel 11b can be easily sucked into the expanded section 2013 under the negative pressure generated by the throat section 2012.

Illustratively, referring to FIG. 6, the length L1 of the throat section 2012 is approximately equal to the diameter d of the throat section 2012. For example, L1= d (0.9 to 1.1). In this embodiment, the throat section 2012 is relatively short in length, which reduces pressure losses.

Illustratively, referring to FIG. 6, the length L2 of the flared section 2013 is 1mm to 2mm, e.g., 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, etc. In this embodiment, the length of the expanding section 2013 is short to reduce the probability of condensation of the gas-liquid mixture into a mist bead on the inner wall of the expanding section 2013.

In other embodiments, referring to fig. 9, the laundry treating apparatus includes an air pump 400, and an outlet of the air pump 400 is communicated with an inlet of the first flow path 11a. The outlet of the dry-cleaning agent passage communicates with the inlet of the second flow passage 11b. The dry cleaning agent enters the venturi jet flow path from the second flow path 11b through the venturi negative pressure suction port 23a.

The clothing treatment facility of this application embodiment carries dry cleaning agent through gaseous, atomizes and spouts to clothing treatment facility through atomizing injection apparatus 100, and through gaseous atomizing carrier as dry cleaning agent, the spraying process of dry cleaning agent can not increase the moisture content of clothing for the clothing can keep at lower moisture content level, is convenient for reduce subsequent stoving time, shortens the time of dry cleaning procedure, and not only energy-conservation can promote dry cleaning efficiency again. In some embodiments, referring to fig. 9, the laundry treating apparatus includes a dry detergent container 600, and the dry detergent container 600 stores a dry detergent. For example, the user adds the amount of dry cleaning required for the dry cleaning process to the dry cleaning agent container 600 several times at a time. In other embodiments, the user can insert a purchased dry cleaning agent bottle directly into the inlet of the dry cleaning agent passage.

For example, referring to fig. 8 to 12, the laundry treating apparatus includes a front supporter 200, and the front supporter 200 is disposed at a front end of the laundry treating drum 300. The front supporter 200 has a laundry inlet 200a. The laundry taking in and out port 200a communicates with the laundry treating chamber.

Referring to fig. 8, the laundry treating apparatus includes a base 500, and the bottom end of the front supporter 200 is coupled to the base 500 and supported on the base 500.

Illustratively, the dry detergent container 600, the air pump 400, and the atomizing spray device 100 are disposed on the front support 200. Air pump 400 is used to provide gas, e.g., air, to the atomizing spray device for atomizing the dry cleaning agent.

In this embodiment, the dry cleaning agent container 600, the air pump 400, the atomizing and spraying device 100, and the front support 200 can be produced in a modular manner, and are convenient to assemble, which is beneficial to improving the compactness of the laundry treatment apparatus, improving the feasibility and reliability of mass production of the laundry treatment apparatus, and facilitating after-sale maintenance of the product.

For example, referring to fig. 13, the front supporter 200 has a through hole 200b, and a portion of the body 11 and the cover 12 pass through the through hole 200b and extend into a side of the front supporter 200 facing the laundry treating chamber 300a. Therefore, a hole does not need to be formed in the door seal ring, and the sealing performance of the door seal ring is not affected.

Referring to fig. 1, 2 and 7, the atomizing sprayer 100 includes a limiting plate 114 disposed on an outer surface of the main body 11. After the atomizing spray device 100 is inserted into the through hole 200b, the limiting plate 114 abuts against the front surface of the front support 200 to prevent the atomizing spray device 100 from being continuously inserted into the through hole 200b, so that the atomizing spray device 100 can be quickly inserted in place.

In some embodiments, the plate 114 is provided with a coupling hole through which a fastener such as a screw is inserted and screwed into the front support 200 to mount the atomizing spray device 100 to the front support 200.

The configuration of the stopper plate 114 is not limited.

For example, in some embodiments, referring to fig. 1 to 6, the limiting plate 114 is substantially annular surrounding the first cylinder 111, and a plate surface of the limiting plate 114 is substantially perpendicular to the extending direction of the first cylinder 111.

In other embodiments, referring to fig. 7, the plate surface of the retainer plate 114 is substantially perpendicular to the extending direction of the second cylinder 112.

Referring to fig. 9, an air duct 200d is disposed at a lower end of the front support 200, the laundry treating apparatus includes a filtering device disposed in the air duct 200d, an air hole 200c is disposed at a bottom wall of the laundry taking and placing opening 200a of the front support 200, the air duct 200d is communicated with the air hole 200c, and an air flow in the laundry treating chamber 300a enters the air duct 200d from the air hole 200c, passes through the filtering device, and is filtered.

Illustratively, the through hole 200b and the atomizing spray device 100 are located above the laundry access opening 200a. Thus, the mist sprayed from the spray port 23b is more easily scattered in the laundry treatment chamber 300a, and the mist covers a wider range.

For example, referring to fig. 3, the portion of the atomizing spray device 100 inserted to the inside of the front supporter 200 extends obliquely downward, so that the spray port 23b can spray mist obliquely downward, and the mist can be more effectively contacted with the laundry.

For example, referring to fig. 9, the air pump 400 is disposed at the lower left of the front support 200, such that the center of gravity of the air pump 400 is closer to the lower side of the front support 200, thereby lowering the position of the center of gravity and improving the overall stability of the clothes treating apparatus.

Illustratively, referring to fig. 9, the dry detergent container 600 is disposed at the lower right of the front support 200, and thus, the air pump 400 and the dry detergent container 600 are relatively evenly arranged in the left-right direction, which facilitates the force balance of the front support 200.

Illustratively, referring to fig. 9, the laundry treating apparatus includes a first pipe 601 and a second pipe 602, and a space inside the second pipe 602 defines the dry detergent passage. One end of the first pipe 601 is connected to the exhaust port of the air pump 400, and the other end of the first pipe 601 is connected to the inlet of the first flow path 11a. One end of the second pipe 602 is connected to the dry-cleaning agent container 600, and the other end is connected to the inlet of the second flow passage 11b.

First pipe 601 extends around atomizing spray device 100 from the lower left of laundry inlet 200a to the upper side, and dry cleaning agent pipe extends around atomizing spray device 100 from the lower right of laundry inlet 200a to the upper side. That is, the first duct 601 is disposed substantially at the left side of the laundry access opening 200a, and the second duct 602 is disposed substantially at the right side of the laundry access opening 200a.

It should be noted that, in the laundry processing apparatus according to the embodiment of the present application, in the dry cleaning process, the non-immersion dry cleaning mode is adopted, the liquid (water or dry cleaning agent) does not immerse the laundry, and the liquid stored in the laundry processing chamber 300a does not exist.

In some embodiments, the atomized spraying device intermittently sprays the atomized dry cleaning agent in a gas-liquid mixture. It is understood that the intermittent injection, i.e., the interval between the previous injection and the next injection, does not belong to the continuous injection. The embodiment of the utility model provides a can carry out the pulsed of dry cleaning agent and spray, spray the dry cleaning solvent before so and spray to the clothing on to have certain time interval between the dry cleaning solvent re-injection clothing next time, compare in the dry cleaning solvent of continuous injection, this time interval can make clothing fibre and dry cleaning solvent fuse, can reuse the detergency of dry cleaning solvent next time after the decontamination function that the last dry cleaning solvent of make full use of fuses the production with clothing, on the one hand can promote the detergency to the clothing, on the other hand also can promote the utilization efficiency of dry cleaning solvent.

In some embodiments, the air pump 400 is a pulse air pump, that is, the air pump intermittently ejects an air flow to intermittently supply air to the atomizing and spraying device, so that the atomizing and spraying device can intermittently spray the atomized dry cleaning agent =. The embodiment of the utility model provides an adopt the pulse air pump to realize the effect of intermittent type nature injection, need not carry out the special limitation to the position relation of other parts of injection subassembly, and the implementation is comparatively convenient.

In some embodiments, as shown in FIG. 1, the height differential between the atomizing spray device 100 and the dry cleaner container 600 is 10-120 centimeters, e.g., 10cm, 20cm, 25cm, 30cm, 35cm, 40cm, 46cm, 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, etc.

It is understood that, in the normal operation state, the atomizing spray device 100 is located near the upper portion of the front support 200, and the dry detergent container 600 is located near the lower portion of the front support 200, i.e., the atomizing spray device 100 and the dry detergent container 600 have a certain height difference. According to the above analysis, the air pump 400 delivers air to the venturi channel 201 in the atomizing spray device 100, negative pressure is generated in the venturi negative pressure suction port 23a, the space in the dry cleaning container 600 is in an atmospheric pressure state, the pressure difference exists, so that the liquid in the dry cleaning container 600 is sucked through the dry cleaning passage to the liquid inlet passage and enters the venturi negative pressure suction port 23a through the liquid inlet passage, at the time when the liquid reaches the venturi negative pressure suction port 23a, the air pressure in the venturi channel 201 causes the liquid to be atomized, and at the same time, since the liquid entering the venturi negative pressure suction port 23a is located close to the throat section (the position has the smallest flow cross-sectional area and the smallest air pressure), the liquid entering the venturi negative pressure suction port 23a blocks the air flow in a short time, so that negative pressure in the liquid inlet passage does not exist, and the liquid cannot be sucked correspondingly, and after the time, the liquid in the venturi negative pressure suction port 23a is flushed out, so that negative pressure suction is generated again, and thus, the intermittent pulse type liquid suction and mist spraying effect occurs. It can be understood that, in the case of stable air delivery by the air pump, the negative pressure that can be generated by the venturi channel 201 of the atomizing injection device 100 is substantially stable, that is: the pressure difference between the venturi negative pressure suction port 23a and the dry detergent container 600 is constant. The pressure difference between the negative pressure and the normal pressure provides upward power for sucking liquid, liquid can be sucked to a position h higher than the initial position (dry cleaning agent container position) only when the pressure difference is larger than rho gh (rho is the density of the dry cleaning agent, g is a gravity constant, h is the height difference of suction rise, and rho gh reflects the gravity of the sucked liquid), because the pressure difference between the venturi negative pressure suction port 23a in the atomization injection device and the dry cleaning agent container 600 is a fixed value, the liquid cannot be sucked to the height under the condition that h is larger, h cannot be too large, and if h is too small, the pressure difference does work by overcoming the gravity of the liquid, namely the liquid is sucked to the height h and also has larger power, so that no liquid can stay around the venturi negative pressure suction port 23a, namely intermittent spray mist is not formed, and continuous spray mist is formed.

It can be understood that there are many ways to achieve intermittent spraying, which are related to the flow rate of the injected gas, the pressure and stability, the density of the liquid to be sucked, the height of the dry cleaning agent container and the nozzle, etc., and the intermittent spraying can be achieved by using the pulse air pump and/or adjusting the appropriate height difference between the dry cleaning agent container and the nozzle.

The height difference between the atomizing spray device 100 and the dry detergent container 600 means the height difference between any liquid level of the dry detergent container 600 and the venturi negative pressure suction port 23a.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 embodiments of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to 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. Moreover, various embodiments or examples and features of various embodiments or examples described herein may be combined by one skilled in the art without being mutually inconsistent.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An atomizing spray device, comprising:

a main body (11) having an opening;

an atomizing core (2) having a spray opening for spraying an atomized dry cleaning agent;

the cover body (12) is detachably covered on the opening, the cover body (12) and the main body portion (11) jointly define a mounting cavity (11 c) for accommodating the atomization core (2), and the atomization core (2) is detachably arranged in the mounting cavity (11 c).

2. The atomizing spray device according to claim 1, characterized in that said main body portion (11) has a first flow passage (11 a) and a second flow passage (11 b) independent of each other, said second flow passage being for the introduction of the liquid dry cleaning agent, said first flow passage being for the introduction of the gas;

3. Atomizing injection device according to claim 2, characterized in that the circumferential surface of the partial shaft section of the atomizing core is spaced from the inner wall of the mounting chamber (11 c) and forms a liquid inlet passage which communicates the outlet of the second flow channel with the inner space of the atomizing core.

4. The atomizing spray device according to claim 3, characterized in that said liquid inlet passage comprises a premixing zone (11 d), the outlet of said second flow channel is disposed on the side wall of said premixing zone, said atomizing spray device has a gas inlet micro-channel, said gas inlet micro-channel connects said premixing zone (11 d) and the external environment of said atomizing spray device, so that the dry cleaning agent can realize gas-liquid two-phase premixing in said premixing zone (11 d).

5. Atomising spraying device according to claim 4, characterised in that said inlet passage comprises a flow control region (11 f), the flow cross-section area of said pre-mixing region (11 d) being greater than the flow cross-section area of said flow control region (11 f).

6. The atomizing injection device according to claim 2, characterized in that said atomizing core (2) has a venturi flow passage (201), a venturi negative pressure suction port (23 a), and an injection port (23 b), a first flow passage (11 a) communicating with an inlet of said venturi flow passage (201), said second flow passage (11 b) communicating with said venturi negative pressure suction port (23 a), and a fluid of said venturi flow passage (201) is ejected through said injection port (23 b).

7. The atomizing spray device according to claim 2, characterized in that said main body portion is provided with a first accommodation groove (111 a) communicating with said opening, said first accommodation groove (111 a) constituting at least a part of said mounting chamber.

8. The atomizing spray device of claim 7, characterized in that said cover (12) has a second receiving groove (12 a), a portion of said atomizing core (2) being inserted in said first receiving groove (111 a), and another portion of said atomizing core (2) being inserted in said second receiving groove (12 a).

9. The atomizing spray device according to claim 8, characterized in that the groove bottom of said first housing groove (111 a) has a first positioning surface (111 b) surrounding the outlet of said first flow passage (11 a), the groove bottom of said second housing groove (12 a) has an escape opening (12 c) for escaping from the spray port (23 b) of said atomizing core (2) and a second positioning surface (12 b) surrounding said escape opening (12 c), and said cover body (12) is screw-coupled to said main body portion (11) and sandwiches opposite ends of said atomizing core (2) between said first positioning surface (111 b) and said second positioning surface (12 b).

10. Atomizing spray device according to claim 9, characterized in that the threaded cooperation of the cover (12) with the main body (11) forms an air inlet microchannel.

11. The atomizing spray device of claim 9, characterized in that the groove bottom of said first receiving groove (111 a) has a retaining ring land (1111), said first retaining surface (111 b) surrounds said retaining ring land (1111), a circumferential surface of said retaining ring land (1111) and a circumferential inner wall of said first receiving groove (111 a) define an annular insertion groove (111 c), and one end of said atomizing core (2) is inserted into said annular insertion groove (111 c).

12. The atomizing spray device of claim 8, characterized in that the peripheral outer surface of said atomizing core (2) at the end close to the outlet of said first flow passage (11 a) is provided with an annular groove (21 a), and said atomizing spray device includes a seal ring (3), said seal ring (3) being disposed in said annular groove (21 a) and being in sealing abutment with the peripheral inner wall of said first receiving groove (111 a).

13. The atomizing spraying device according to claim 6, characterized in that, along the fluid flowing direction of said first flow passage (11 a), said atomizing core (2) includes an inlet shaft section (21), a necking shaft section (22) and an outlet shaft section (23) which are arranged in this order, a premixing zone (11 d) is formed between said necking shaft section (22) and the inner wall of said mounting cavity (11 c), said venturi negative pressure suction port (23 a) is provided in said outlet shaft section (23), and the outlet of said second flow passage (11 b) is provided in the side wall of said premixing zone (11 d).

14. The atomizing spray device according to claim 13, characterized in that the smallest flow cross-sectional area of the clearance between said outlet shaft section (23) and the circumferential surface of said mounting chamber (11 c) is smaller than the sum of the flow cross-sectional areas of said venturi negative pressure suction ports (23 a).

15. The atomizing spray device according to claim 1, characterized in that said main body portion (11) includes a first cylindrical portion (111) and a second cylindrical portion (112), said second cylindrical portion (112) and said cover body (12) are connected to opposite ends of said first cylindrical portion (111) in a longitudinal direction, said atomizing core (2), said first cylindrical portion (111) and said cover body (12) extend in the same direction, said second cylindrical portion (112) is provided obliquely with respect to said first cylindrical portion (111).

16. Atomizing spray device according to claim 15, characterized in that the angle between the direction of extension of said first cylindrical section (111) and the direction of extension of said second cylindrical section (112) is between 110 ° and 150 °.

17. Atomizing spray device according to one of claims 1 to 16, characterized in that the atomizing core (2) is detachably connected to the cover (12).

18. Atomizing spray device according to any one of claims 1 to 16, characterized in that the atomizing core (2) is a metallic piece.

19. A laundry treating apparatus, comprising:

a laundry treating drum (300) having a laundry treating cavity (300 a);

a dry cleaning agent pathway;

and an atomising spraying device according to any of the claims 1-18, said dry-cleaning agent passage communicating with a flow channel within said atomising spraying device for spraying atomised dry-cleaning agent towards said laundry treatment drum (300).

20. The laundry treating apparatus according to claim 19, comprising a front support (200) provided at a front end of the laundry treating drum (300), the front support (200) having a through hole (200 b), a portion of the main body portion (11) and the cover (12) passing through the through hole (200 b) and protruding into a side of the front support (200) facing the laundry treating chamber (300 a).

21. The laundry processing apparatus according to claim 19, wherein the spray device intermittently sprays the atomized dry cleaning agent in a gas-liquid mixture.

22. The laundry treating apparatus according to claim 21, characterized in that the laundry treating apparatus includes a dry detergent container (600) for storing a liquid dry detergent, the dry detergent passage communicates with the dry detergent container (600), and the height difference between the atomizing spray device and the dry detergent container (600) is 10-120 cm.

23. The laundry processing apparatus according to claim 21, comprising an air pump (400), the air pump (400) providing the atomizing spray device with air for atomizing dry detergent, the air pump being a pulse air pump providing the atomizing spray device with air intermittently.