CN117626602A

CN117626602A - Clothes treatment equipment

Info

Publication number: CN117626602A
Application number: CN202210990176.0A
Authority: CN
Inventors: 朱晓伟; 崔阅馨; 牟秋启; 刘洪刚; 周存玲
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: 2024-03-01

Abstract

The present invention provides a laundry treatment apparatus comprising: the front supporting body is connected with the clothes treating barrel and is used for supporting the clothes treating barrel; a dry cleaning solvent injecting device for injecting dry cleaning solvent into the laundry treating tub; the dry cleaning solvent throwing device is at least partially arranged on the front supporting body.

Description

Clothes treatment equipment

Technical Field

The present invention relates to a laundry machine, and more particularly, to a laundry machine.

Background

The clothes treating apparatus has the functions of caring, removing wrinkles, deodorizing and the like, and the related clothes treating apparatus cannot perform dry cleaning in the household clothes treating apparatus, so that the user experience is poor.

Disclosure of Invention

In view of the above, the present invention provides a laundry treatment apparatus, which solves the technical problem of how to improve the compactness of the laundry treatment apparatus on the basis of integrating the dry cleaning solvent injecting device for dry cleaning.

The technical scheme of the invention is realized as follows:

an embodiment of the present invention provides a laundry treatment apparatus including:

the front supporting body is connected with the clothes treating barrel and is used for supporting the clothes treating barrel;

A dry cleaning solvent injecting device for injecting dry cleaning solvent into the laundry treating tub; the dry cleaning solvent throwing device is at least partially arranged on the front supporting body.

In some embodiments, the dry cleaning solvent delivery device comprises:

the nozzle device comprises a body and a branch pipe, wherein the body is used for conducting a first medium, the branch pipe is used for conducting a second medium, and the first medium sucks the second medium.

In some embodiments, the laundry treatment apparatus includes:

a pump; the pump is communicated with one end of the body to convey the first medium, and the other end of the body ejects the mixture of the first medium and the second medium.

In some embodiments, the body has a first passageway therein, the first medium comprises a gas, the second medium comprises a dry cleaning solvent, the first passageway mixes the gas and the dry cleaning solvent into a gas-liquid mixture, and the first passageway comprises a first outlet for spraying the gas-liquid mixture.

In some embodiments, the nozzle device comprises:

the sleeve assembly is internally provided with a first accommodating groove;

and the core part is arranged in the first accommodating groove, and the sleeve assembly and the core part are detachably connected.

In some embodiments, an air inlet channel and a liquid inlet channel are further arranged in the sleeve assembly, and the first channel communicated with the air inlet channel is arranged in the core part; a second channel communicated with the liquid inlet channel is formed between the outer side wall of the core part and the inner side wall of the sleeve assembly, and the core part is provided with a first liquid inlet channel communicated with the first channel and the second channel.

In some embodiments, the first channel comprises:

the cross-sectional area of the reducing section gradually decreases from a first end to a second end, and the first end is an end close to the air inlet channel;

and the expanding section extends from a position close to the second end to the first outlet, and the cross section area of the expanding section gradually increases towards the direction close to the first outlet.

In some embodiments, the first channel further comprises:

the cross-sectional area of the throat part is equal to the cross-sectional area of the diameter-reducing section at the second end, wherein the second outlet of the first liquid inlet flow passage is arranged at one end of the diameter-expanding section close to the throat part.

In some embodiments, the laundry treatment apparatus further comprises:

The air inlet pipe is connected with the air inlet of the pump;

the air outlet pipe is connected with the air outlet of the pump and one end, far away from the first channel, of the air inlet channel;

the liquid inlet pipe is connected with the throwing port and one end, far away from the second channel, of the liquid inlet channel;

the air inlet pipe, the air outlet pipe and the liquid inlet pipe are positioned on the front side of the front supporting body, and the first outlet is positioned on the rear side of the front supporting body.

In some embodiments, the nozzle device is disposed at an upper portion of the front support, and the first outlet is directed rearward and downward of the front support.

In some embodiments, the pump is disposed below the front side of the front support.

In some embodiments, the laundry treatment apparatus further comprises:

and the delivery port is used for delivering dry cleaning solvent and is arranged on the front support body.

In some embodiments, the pump and the delivery port are disposed on left and right sides of the front support, respectively.

In some embodiments, the laundry treatment apparatus further comprises:

the liquid storage box is used for storing the dry cleaning solvent, is communicated with the throwing port and is arranged below the front side of the front support body.

In some embodiments, the reservoir is proximate to the delivery port and the center of the reservoir is lower than the delivery port.

In some embodiments, the nozzle device intermittently ejects the gas-liquid mixture.

In some embodiments, the nozzle device is 10-120 cm in height from the cartridge.

In some embodiments, the pump is a pulsed air pump.

The embodiment of the invention provides clothes treatment equipment, which comprises a front support body and a dry cleaning solvent throwing device, wherein the dry cleaning solvent throwing device is arranged on the front support body. According to the embodiment of the invention, the dry-cleaning solvent throwing device is arranged at the front side of the clothes treatment equipment, and the dry-cleaning solvent is generally put in from the front side of the clothes treatment equipment by a user, so that the dry-cleaning solvent throwing device is arranged at the front side of the clothes treatment equipment, a pipeline which is convenient to connect the dry-cleaning solvent throwing device with a throwing port is arranged to be shorter, and the pipeline cannot cross from the front side to the rear side of the clothes treatment equipment, thereby being beneficial to improving the smoothness of circulation of the dry-cleaning solvent in management; according to the embodiment of the invention, the dry-cleaning solvent delivery device is arranged on the front support body, the front support body is used for supporting other parts in the clothes treatment equipment, the front support body is reused as a carrier of the dry-cleaning solvent delivery device, and the mounting structures such as the mounting seats are not required to be arranged for the dry-cleaning solvent delivery device independently, so that the dry-cleaning solvent delivery device and the front support body can realize modular production, the assembly difficulty of the dry-cleaning solvent delivery device is reduced, the structural compactness of the clothes treatment equipment is improved, the feasibility and the reliability of the mass production of products formed by the front support body and the dry-cleaning solvent delivery device are improved, and the after-sale maintenance of the products is facilitated.

Drawings

Fig. 1 is a schematic structural view of a front support and a dry cleaning solvent dispensing device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a laundry treating apparatus according to an embodiment of the present invention;

fig. 3 is a sectional view of a laundry treating apparatus according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the portion C shown in FIG. 3;

FIG. 5 is a perspective view of a nozzle assembly according to an embodiment of the present invention;

FIG. 6 is a side view of a nozzle arrangement according to an embodiment of the invention;

FIG. 7 is a section view of section A-A of FIG. 6;

FIG. 8 is an enlarged view of portion B of FIG. 7;

fig. 9 is an exploded view of a nozzle assembly according to an embodiment of the present invention.

Reference numerals illustrate:

100. a nozzle device; 1. a sleeve assembly; 10. a first accommodation groove; 11. an inner sidewall; 12. a second channel; 13. a cylinder; 131. a liquid inlet channel; 132. an air intake passage; 14. a cover body; 2. a core; 20. a first channel; 201. a first inlet; 202. a first outlet; 21. an outer sidewall; 22. a reducing section; 23. a first liquid inlet flow passage; 231. a second outlet; 232. a second inlet; 24. a small diameter portion; 25. a large diameter portion; 26. a connection part; 27. a reducing section; 271. a first end; 272. a second end; 28. an expanding section; 281. a throat; 29. an isodiametric section; 3. a seal ring; 100a, dry cleaning solvent throwing device; 200. a front support; 300. a delivery port; 400. a pump; 401. an air inlet; 402. an air outlet; 501. an air inlet pipe; 502. an air outlet pipe; 503. a liquid inlet pipe; 600. a liquid storage box; 700. a tub body; 701. a receiving chamber.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The individual features described in the specific embodiments can be combined in any suitable manner, without contradiction, for example by combination of different specific features, to form different embodiments and solutions. Various combinations of the specific features of the invention are not described in detail in order to avoid unnecessary repetition.

In the following description, references to the term "first/second/are merely to distinguish between different objects and do not indicate that the objects have the same or a relationship therebetween. It should be understood that references to orientations of "above", "below", "outside" and "inside" are all orientations in normal use, and "left" and "right" directions refer to left and right directions illustrated in the specific corresponding schematic drawings, and may or may not be left and right directions in normal use.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. "plurality" means greater than or equal to two.

The embodiment of the invention provides a clothes treatment device which can be applied to the scenes of dry cleaning machines, dry cleaning and washing integrated machines and the like. It should be noted that the application scenario type of the embodiment of the present invention does not limit the structure of the laundry treatment apparatus of the embodiment of the present invention.

The following description will be made taking a scenario in which the laundry treating apparatus is applied to a dry cleaning machine, which is a washing machine that performs washing, solution filtering, deliquifying, drying and recovering, and purifying a washing solvent by using a dry cleaning solvent, thereby realizing a recycling operation. Dry cleaning solvents include, but are not limited to, tetrachloroethylene and petroleum.

As shown in fig. 1, an embodiment of the present invention provides a laundry treating apparatus including a dispensing opening 300, a front supporter 200, and a dry cleaning solvent dispensing device 100a. The dispensing opening 300 is used to dispense the dry cleaning solvent into the laundry treating apparatus, that is, the user can dispense the dry cleaning solvent into the laundry treating apparatus through the dispensing opening 300. The front supporter 200 is a supporting structure near the front end of the whole laundry treating apparatus, and as shown in fig. 2, the front supporter 200 may be used to support the tub 700 of the laundry treating apparatus, wherein a receiving cavity 701 is provided in the tub 700, and the receiving cavity 701 may be used to receive laundry to be dry-cleaned. As shown in fig. 1 and 2, the dispensing port 300 is provided at the front support 200, so that a user can conveniently dispense the dry cleaning solvent to the dispensing port 300. The dry cleaning solvent dispensing device 100a is communicated with the dispensing opening 300, and the dry cleaning solvent dispensing device 100a is used for atomizing and spraying the dry cleaning solvent into the accommodating cavity 701. It should be noted that atomization means that the dry cleaning solvent injected from the injection port 300 is guided into the dry cleaning solvent injection device 100a, the nozzle assembly 100a injects high-speed gas to impact the dry cleaning solvent, so that the dry cleaning solvent is dispersed into tiny droplets, and forms a mist spraying nozzle assembly 100a, the mist dry cleaning solvent is sprayed on the clothes in the accommodating cavity 701, which is beneficial to increasing the contact area between the dry cleaning solvent and the clothes, and the contact between the dry cleaning solvent and the clothes can realize the dissolution of stains on the clothes, so as to improve the uniformity of the dry cleaning solvent sprayed on the clothes, and thus is beneficial to improving the quality of dry cleaning.

As shown in fig. 1, the dry cleaning solvent dispensing device 100a in the embodiment of the present invention is provided at the front support 200. It should be noted that, the embodiment of the present invention is not limited to a specific connection form between the dry cleaning solvent dispensing device 100a and the front support 200, for example, the dry cleaning solvent dispensing device 100a may be permanently fixed to the front support 200 by welding or bonding, and the dry cleaning solvent dispensing device 100a may be detachably connected to the front support 200 by a clip or a screw. Regardless of the specific connection mode adopted between the dry cleaning solvent delivery device 100a and the front support 200, the dry cleaning solvent delivery device 100a can maintain a stable relative position with respect to the front support 200. According to the embodiment of the invention, the dry cleaning solvent delivery device 100a is arranged on the front support body 200, so that the dry cleaning solvent delivery device 100a and the front support body 200 can realize modular production, the assembly difficulty of the dry cleaning solvent delivery device 100a is reduced, the structural compactness of clothes treatment equipment is improved, the feasibility and the reliability of mass production of products formed by the front support body and the dry cleaning solvent delivery device are improved, and the after-sale maintenance of the products is facilitated.

The embodiment of the invention provides clothes treatment equipment, which comprises a throwing port, a front support body and a dry-cleaning solvent throwing device, wherein the throwing port is used for throwing dry-cleaning solvent, the throwing port is arranged on the front support body, the dry-cleaning solvent throwing device is communicated with the throwing port and sprays the dry-cleaning solvent, and the dry-cleaning solvent throwing device is arranged on the front support body. According to the embodiment of the invention, the dry cleaning solvent throwing device is arranged at the front side of the clothes treatment equipment, and the throwing port is arranged at the front side of the clothes treatment equipment in order to facilitate a user to put in the dry cleaning solvent, so that the dry cleaning solvent throwing device is arranged at the front side of the clothes treatment equipment and is closer to the throwing port, a pipeline which is convenient for communicating the dry cleaning solvent throwing device and the throwing port is arranged shorter, and the pipeline cannot span from the front side to the rear side of the clothes treatment equipment, thereby being beneficial to improving the smoothness of circulation of the dry cleaning solvent in management; according to the embodiment of the invention, the dry-cleaning solvent delivery device is arranged on the front support body, the front support body is used for supporting other parts in the clothes treatment equipment, the front support body is reused as a carrier of the dry-cleaning solvent delivery device, and the mounting structures such as the mounting seats are not required to be arranged for the dry-cleaning solvent delivery device independently, so that the dry-cleaning solvent delivery device and the front support body can realize modular production, the assembly difficulty of the dry-cleaning solvent delivery device is reduced, the structural compactness of the clothes treatment equipment is improved, the feasibility and the reliability of the mass production of products formed by the front support body and the dry-cleaning solvent delivery device are improved, and the after-sale maintenance of the products is facilitated.

In some embodiments, the dry cleaning solvent delivery apparatus 100a includes a nozzle apparatus 100. As shown in fig. 1, the nozzle device includes a body for conducting a first medium and a branch pipe for conducting a second medium, the first medium sucking the second medium. It will be appreciated that both the body and the manifold interior may be used to circulate a fluid medium, and that the second medium may be pumped through the first medium circulated within the body, thereby enabling the formation of the mixed medium spray nozzle device 100. It will be appreciated that the nozzle arrangement 100 may have a variety of ways of dividing the components; for example, according to the above-mentioned difference of the flowing fluid medium, the body may be introduced into the first medium at one end inlet and the mixed medium of the first medium and the second medium is ejected at the other end outlet, and the branch pipe may be introduced into the second medium at one end inlet and the second medium is output into the body at the other end outlet to be mixed with the first medium; the nozzle device may also be divided into a sleeve assembly located outside and a core surrounded by the sleeve assembly located in the center, which may be correspondingly formed on the body and/or the branch pipe, depending on the positional relationship, for example, the sleeve assembly including a portion of the body and the branch pipe, and the core including another portion of the body. For simplicity and convenience, the nozzle assembly is described below as divided into a cartridge assembly and a core.

In some embodiments, as shown in fig. 1, the dry cleaning solvent delivery apparatus 100a includes a pump 400 and a nozzle apparatus 100. The pump 400 is used to increase the flow rate of the gas. The body is internally provided with a first channel 20, and the first channel 20 is communicated with a pump 400 and a delivery port 300 as shown in fig. 7, wherein the pump 400 is used for delivering gas to the first channel 20, the delivery port 300 is used for delivering dry cleaning solvent to the first channel 20, the mixed gas of the first channel 20 and the dry cleaning solvent are gas-liquid mixture, the first channel 20 comprises a first outlet 202 for injecting the gas-liquid mixture, and the first outlet 202 is used for injecting the gas-liquid mixture into a containing cavity of the clothes treating device. According to the embodiment of the invention, the speed of the gas injected into the nozzle device 100 is increased by arranging the pump, so that the speed of the gas injected into the dry cleaning solvent is increased, the scattering degree of the gas on the dry cleaning solvent is increased, the atomization effect of the dry cleaning solvent is improved, and after the dry cleaning solvent is atomized, small liquid drops of the dry cleaning solvent can uniformly contact the surface of clothes, so that the contact area of the dry cleaning solvent and the clothes is increased, and the cleanliness of the clothes is improved.

In some embodiments, as shown in connection with fig. 5-9, fig. 5 is a perspective view of a nozzle device 100 according to an embodiment of the present invention, fig. 6 is a side view of the nozzle device 100 according to an embodiment of the present invention, and fig. 7 is a cross-sectional view of the nozzle device 100 according to an embodiment of the present invention. The nozzle device 100 comprises a sleeve assembly 1 and a core 2. As shown in fig. 7, the sleeve assembly 1 is provided inside with a first receiving groove 10. The core 2 is arranged in the first receiving groove 10 and a first channel 20 is provided inside the core 2 for the passage of a first medium, which may be a gas. As shown in fig. 7, a second channel 12 is formed between the outer sidewall 21 of the core 2 and the inner sidewall 11 of the sleeve assembly 1, and the second channel 12 is used for circulating a second medium, wherein the second medium may be tetrachloroethylene, petroleum or other dry cleaning solvent. The first medium flows along the first channel 20 and sucks the second medium in the second channel 12 into the first channel 20, and in the process of sucking the second medium into the first channel 20, the first medium originally flowing in the first channel 20 can be scattered into the second medium in the second channel 12, so that the second medium is dispersed into tiny droplets, the second medium forms a mist spraying nozzle device 100, the mist dry cleaning solvent is sprayed on the clothes in the clothes dryer, the contact area of the dry cleaning solvent and the clothes is increased, the dry cleaning solvent and the clothes can dissolve stains on the clothes, and the uniformity of the dry cleaning solvent sprayed on the clothes is improved, so that the dry cleaning quality is improved.

In an embodiment of the invention, the second channel 12 includes a variable diameter section 22. The second channel 12 is formed by a gap between the core 2 and the sleeve assembly 1, wherein the second channel 12 is arranged circumferentially around the core 2. The variable diameter section 22 indicates a case where there is a change in the cross-sectional area of at least a part of the second passage 12 in the axial direction, for example, a case where there is a decrease or a decrease in the cross-sectional area of the second passage 12 in the axial direction, and of course, does not completely mean a case where the entire second passage 12 tends to change, that is, a case where there may be a constant cross-sectional area of a part of the second passage 12. The axial direction refers to the length direction of the second channel 12, or the length direction of the first channel 20, and the length directions of the first channel 20 and the second channel 12 in the embodiment of the present invention are substantially the same. The longitudinal direction of the first channel 20 indicates the direction in which the first medium flows in the first channel 20, and the longitudinal direction of the second channel 12 also indicates the direction in which the second medium flows in the second channel 12. The cross section of the second channel 12 is a cross section of the second channel 12 perpendicular to the axial direction (the left-right direction shown in fig. 7), as shown in fig. 7, in the case that the second channel 12 is in an axisymmetric structure, the change condition of the cross section of the second channel 12 may be represented by the length of the second channel 12 in the up-down direction, and as can be seen from fig. 7, the length of the variable diameter section 22 in the second channel 12 in the up-down direction in the axial direction (the left-right direction shown in fig. 7) in the embodiment of the present invention changes instead of the constant value.

The second channel 12 is used for conducting a second medium, the second medium is a fluid medium, in the process that the second medium flows along the second channel 12, for example, as shown in fig. 7, the cross-sectional area of the second channel 12 is larger at a portion near the left side, then, due to the existence of an inclined plane where the core 2 protrudes outwards (i.e., where the reducing section 22 is located), the cross-sectional area of the portion of the second channel 12 at the right side is smaller, that is, in the process that the air pressure from the left side of the reducing section 22 to the right side of the reducing section 22 is smaller, then, the proportion of the fluid flowing along the wall surface of the second channel 12 is increased, the fluid has viscosity, and when the fluid flows along the wall surface of the second channel 12 is increased, the resistance of the fluid in the second channel 12 is increased, and the pressure of the fluid itself is unchanged (because the air pressure is unchanged, the negative pressure generated in the nozzle device is a constant value, that is, and then, the flow rate of the fluid in the second channel is decreased. According to the embodiment of the invention, the flow/flow rate of the second medium can be regulated by setting the variable-diameter section of the second channel, so that the flow rate of the second medium can be regulated to be smaller, the first medium can fully impact the second medium, and when the first medium is gas and the second medium is liquid, the liquid flow rate is smaller and can be fully decomposed into liquid drops by the impact of the gas, so that the atomization efficiency is improved.

The embodiment of the invention provides a nozzle device, which comprises a sleeve assembly and a core part, wherein a first accommodating groove is formed in the sleeve assembly, the core part is arranged in the first accommodating groove, a first channel for circulating a first medium is formed in the core part, a second channel for circulating a second medium is formed between the outer side wall of the core part and the inner side wall of the sleeve assembly, the first medium circulates along the first channel and sucks the second medium into the first channel, and the second channel comprises a reducing section. According to the embodiment of the invention, the variable diameter section is arranged in the second channel, so that the flow speed, the pressure and the flow of the second medium flowing in the second channel can be controlled by changing the parameters of the variable diameter section, the structural parameters of the variable diameter section are mainly that the external size of the core part or the size of the first accommodating groove is changed, compared with the mode that the size of the joint of the first channel and the second channel is changed, the control mode of the structural parameters of the variable diameter section is simple and reliable, the processing difficulty and the manufacturing cost are reduced, the flow control difficulty of the second medium entering the first channel is reduced, the atomization efficiency of the second medium is improved, the uniformity of dry cleaning solvent sprayed on clothes is improved, and the cleanliness of dry cleaning is improved.

In some embodiments, as shown in fig. 7, the core 2 is provided with a first inlet flow channel 23 communicating the first channel 20 and the second channel 12; in some embodiments, the first passages 20 are disposed along the axial direction (left-right direction in fig. 7) of the core 2, and the first inlet flow passages 23 are disposed along the radial direction of the core 2, which represents a vertical axial direction, that is, the up-down direction in fig. 7. In the second passage 12, after the second medium enters the second passage 12, the second medium flows from the first liquid-intake passage 23 to the first passage 20, that is, the position where the first liquid-intake passage 23 is connected to the second passage 12 can be regarded as the end point of the second passage 12. In the embodiment of the present invention, the cross-sectional area of the second channel 12 decreases in the direction approaching the first liquid inlet channel 23, wherein the trend of the change in the cross-sectional area of the second channel 12 is a trend of decreasing in the direction from one end in the axial direction to the first liquid inlet channel 23. The second channel 12 can be varied in a manner that includes, but is not limited to, a gradual decrease in the trend; or the cross-sectional area of the second channel 12 is first constant and decreasing; or the cross-sectional area of the second channel 12 is first constant, then reduced, and then constant; in addition, the cross-sectional area of the second channel 12 changes in a plurality of gradient manners toward a decreasing direction, and it should be noted that the embodiment of the present invention is not limited to the above-described manner of changing the second channel 12, as long as the cross-sectional area of the second channel 12 at the position where the first inlet flow channel 23 is connected is smaller than the cross-sectional area of the second channel 12 at the position where the second medium is introduced. The location of the change in cross-sectional area in the second channel 12 is defined as the variable diameter section in the embodiment of the present invention.

According to the embodiment of the invention, the first liquid inlet channel is communicated with the second channel, the cross section area of the second channel is reduced in the direction close to the first liquid inlet channel, and in the process that the second medium flows in the second channel in the direction close to the first liquid inlet channel, the cross section area of the second channel is reduced, the flow rate of the corresponding second medium entering the first liquid inlet channel from the second channel is reduced, so that the flow rate of the second medium entering the first channel from the first liquid inlet channel is reduced, the spraying amount of the second medium by the first medium is controlled, the atomization effect of the second medium is improved, and particularly, the scattering probability of the second medium into tiny drops is improved, the area of the second medium contacting clothes is improved, and the cleanliness of dry cleaning is improved. In addition, the first channel is arranged along the axial direction of the core part, the first liquid inlet flow channel is arranged along the radial direction of the core part, and the second channel is also arranged along the axial direction, so that the pressure difference of the first liquid inlet flow channel at the two positions connecting the first channel and the second channel is larger, the first liquid inlet flow channel can generate larger negative pressure to suck the second medium from the second channel into the first channel, and the atomization efficiency of the dry cleaning solvent is further improved.

In some embodiments, as shown in fig. 7, the core 2 increases in cross-sectional area in a direction approaching the first inlet flow passage 23. The cross-sectional area of the core 2 according to the embodiment of the present invention represents the maximum cross-sectional dimension of the core 2 enclosed by the outer contour in the vertical axis direction. That is, by increasing the size of the outer contour of the core 2, the cross-sectional area of the first receiving groove 10 in the sleeve assembly 1 in the axial direction near the first liquid inlet flow passage 23 may be made smaller or may be made unchanged, and of course, if the size of the cross-sectional area of the first receiving groove 10 in the sleeve assembly 1 near the first liquid inlet flow passage 23 becomes larger, the rate of change of the first receiving groove needs to be smaller than that of the core 2, thereby ensuring that the cross-sectional area of the second passage in the direction near the first liquid inlet flow passage 23 becomes smaller. According to the embodiment of the invention, the cross-sectional area of the second channel can be changed by adjusting the size of the outer contour of the core part 2, the core part can be independently manufactured relative to the sleeve assembly, the core part is simple in processing mode, the processing efficiency of the whole nozzle device is improved, and the processing difficulty of the size change of the second channel is reduced.

In some embodiments, the core 2 is made of metal, because in the case of the nozzle assembly applied to the clothes drying equipment, there is a heating stage in the dry cleaning process, the nozzle assembly is affected by temperature change, and the embodiment of the invention is beneficial to improving the stability of the structural dimension of the core 2 under the condition of temperature change by arranging the core 2 in the nozzle assembly to be made of metal, thereby being beneficial to improving the atomization effect of the nozzle assembly, and the structural strength and corrosion resistance of the metal material are strong, being beneficial to keeping the stability of the structural dimension under the long-term dual action of high-speed airflow and dry cleaning solvent, thereby being beneficial to prolonging the service life of the nozzle assembly.

In some embodiments, as shown in fig. 7, the core 2 includes a small diameter portion 24, a connecting portion 26, and a large diameter portion 25. The cross-sectional area of the small diameter portion 24 is a first fixed value, the cross-sectional area of the large diameter portion 25 is a second fixed value, and the second fixed value is larger than the first fixed value, wherein the cross-sectional area of the small diameter portion 24 is the cross-sectional area of the largest dimension surrounded by the outer contour of the small diameter portion 24, and the cross-sectional area of the large diameter portion 25 is also the cross-sectional area of the largest dimension surrounded by the outer contour of the large diameter portion 25. In the embodiment of the present invention, when the second constant value is greater than the first constant value, it means that the cross-sectional area of the large diameter portion 25 is greater than the cross-sectional area of the small diameter portion. Wherein one end (left end as shown in fig. 7) of the connecting portion 26 is connected to the small diameter portion 24, the other end (right end as shown in fig. 7) of the connecting portion 26 is connected to the large diameter portion 25, and at least a part of the cross-sectional area of the connecting portion 26 gradually increases from one end to the other end (left to right), wherein the first inlet flow channel 23 is disposed at one end of the large diameter portion 25 away from the connecting portion 26 (that is, in the embodiment shown in fig. 7, the first inlet flow channel 23 is disposed at the right end of the large diameter portion 25), the first channel 20 penetrates the small diameter portion 24, the connecting portion 26 and the large diameter portion 25, and the reducing section 22 is disposed between the connecting portion 26 and the sleeve assembly 1, specifically, the reducing section 22 is formed between the outer side wall of the connecting portion 26 and the inner side wall of the sleeve assembly 1.

According to the embodiment of the invention, the core is provided with the small diameter part, the connecting part and the large diameter part which are sequentially connected in the axial direction, the cross section area of the small diameter part is smaller than that of the large diameter part, the cross section area of the connecting part is gradually increased from one end connected with the small diameter part to one end connected with the large diameter part, the cross section area of the second medium is reduced in the process of flowing from the outer side of the small diameter part to the outer side of the large diameter part, the flow rate of the corresponding second medium entering the first liquid inlet channel from the second channel is reduced, the flow rate of the second medium entering the first channel from the first liquid inlet channel is reduced, namely the volume of the second medium in unit time is smaller, so that the second medium is impacted by the first medium to be dispersed into a large number of tiny parts, and the volume of each tiny part is smaller, the effect that the liquid is fully decomposed into a large number of tiny liquid drops by the gas is realized under the condition that the second medium is the liquid, the effect that the liquid is fully atomized by the gas is favorable, the structure of the core is simple, and the processing and manufacturing difficulty is favorable to be reduced.

In some embodiments, as shown in fig. 8, the first passage 20 includes a reduced diameter section 27 and an enlarged diameter section 28. Fig. 8 is an enlarged view of a portion B in fig. 7, where the reduced diameter section 27 has two opposite ends in the axial direction, namely a first end 271 and a second end 272, and the first end 271 is close to the first inlet 201 of the first channel relative to the second end 272, and the second end 272 is close to the first outlet 202 of the first channel 20 relative to the first end 271. As shown in fig. 8, the cross-sectional area of the reduced diameter section 27 gradually decreases from the first end 271 to the second end 272, and the gradual decrease indicates that the change in the cross-sectional area of the reduced diameter section 27 gradually decreases with a certain slope, and the slope may be a constant value or a continuously variable value, as long as the cross-sectional area of the reduced diameter section 27 does not have a trend of abrupt change. In the embodiment of the invention, the cross-sectional area of the reducing section 27 is gradually reduced from the first end to the second end, and as the flow rate passing through each section in the same flow channel is constant according to the continuity of fluid flow in the flow channel with continuous flow, namely va=constant, wherein V is the flow velocity and a is the cross-sectional area of the flow channel, the area of the corresponding cross-section of the flow channel is reduced along the flow direction of the first medium passing through the reducing section 27, so that the flow velocity passing through each cross-section along the flow direction is increased; according to Bernoulli equation, the sum of pressure potential energy, kinetic energy and gravitational potential energy at any two points on the streamline is kept unchanged, so that the corresponding kinetic energy is increased due to the increase of the flow velocity along the flow direction, and the gravitational potential energy is basically unchanged, so that the pressure potential energy is reduced, namely the pressure of the first medium is reduced along the flow direction. By further increasing the velocity of the first medium, it is advantageous to increase the velocity of the first medium impacting the second medium, thereby increasing the effect of the second medium being broken up by the first medium, and the pressure of the first medium is reduced, thereby facilitating the formation of a larger negative pressure in the first channel, thereby facilitating the suction of the second medium in the second channel into the first channel.

As shown in fig. 8, the first inlet flow channel 23 has two opposite ends in the radial direction, one end is a second inlet 232, the other end is a second outlet 231, the second inlet 232 of the first inlet flow channel 23 is connected to the second channel 12, and the second outlet 231 of the first inlet flow channel 23 is connected to the first channel 20. The second outlet 231 of the first inlet flow channel 23 is disposed on the expanded section 28, that is, the second medium in the first inlet flow channel 23 flows out from the second outlet 231 and directly into the expanded section 28 of the first channel 20. As shown in fig. 8, the expanded section 28 extends from a position near the second end 272 to the first outlet 202 of the first passage 20, and the cross-sectional area of the expanded section 28 gradually increases toward the direction near the first outlet 202. Wherein the first medium in the first channel 20 increases in velocity and decreases in pressure under the influence of the reduced diameter section 27. At the moment when the first medium in the reducing section 27 enters the expanding section 28, since the area of the flow passage cross section between the reducing section 27 and the expanding section 28 is the smallest cross section area in the first passage, va=constant according to the continuity equation of the liquid fluid, where V is the flow velocity and a is the respective cross section areas of the flow passage, the flow velocity of the first medium at the section where the second outlet 231 is located is the largest, and the pressure potential energy at this location is the smallest according to the bernoulli equation. Then, in the embodiment of the present invention, the second outlet 231 is connected to the expanding section, which is favorable for realizing that the first medium with a larger speed impacts the second medium, is favorable for forming a larger negative pressure at the second outlet 231 to suck the second medium into the first channel, reduces the risk that the second medium flows back to the first liquid inlet channel, is favorable for improving the scattering effect of the second medium, and further improves the atomizing effect of the second medium. And the cross section area of the expanding section is gradually increased, so that the effect of diffusion of the second medium after being impacted by the first medium is improved. In addition, in the embodiment of the present invention, the second outlet 231 is disposed in the expanded diameter section, and compared with the second outlet or other positions, the direction in which the second medium is flushed out from the second outlet has a certain inclination angle with the wall surface of the expanded diameter section, and the expanded diameter section is beneficial to guiding the gas in the direction in which the expanded diameter section is close to the first outlet 202, so as to reduce the risk of backflow of the gas or liquid into the first liquid inlet flow channel or the expanded diameter section.

In some embodiments, the inlet of the second medium introduced into the second channel 12 and the second inlet 232 of the first liquid inlet channel 23 may be arranged in a staggered manner in the circumferential direction, that is, the projections of the inlet of the second medium in the second channel 12 and the second inlet 232 in the circumferential direction may not coincide, after the second medium enters the second channel 12, the path from the inlet of the second medium in the second channel 12 to the second inlet 232 is twisted, so that the liquid rotationally advances, and finally enters the first liquid inlet channel 23 from the second inlet 232, and the rotationally moved second medium can impact with the gas in the second channel 12, thereby realizing the pre-atomization of the second medium.

In some embodiments, as shown in fig. 8, the number of the first liquid inlet channels 23 may be plural, and the plural first liquid inlet channels 23 are arranged at intervals in the circumferential direction of the large diameter portion, where the number of the first liquid inlet channels 23 in the embodiment of the present invention is less than or equal to 8, and in the embodiment shown in fig. 8, the number of the first liquid inlet channels 23 is four, that is, by increasing the number of the first liquid inlet channels 23, on the one hand, the effect of disturbing the second medium in the second channel can be increased, the effect of pre-atomizing the second medium in the second channel can be improved, and on the other hand, the number of the first liquid inlet channels is limited within a certain range, the pressure of each first liquid inlet channel for guiding out the second medium can be controlled, so that the negative pressure energy in the first channel can suck the second medium in each first liquid inlet channel as much as possible, thereby improving the efficiency of the flow of the second medium.

In some embodiments, the first passage 20 further includes a throat 281, the throat 281 connecting the second end 272 of the reduced diameter section 27 and the expanded diameter section 28, the throat 281 having a cross-sectional area equal to the cross-sectional area of the reduced diameter section 27 at the second end 272. Embodiments of the present invention facilitate stabilizing the flow of the first medium introduced by the reduced diameter section 27 by providing the throat 281, that is, increasing the flow rate of the first medium at the reduced diameter section 27, the rate of the first medium entering the throat 281 being at a maximum, wherein the second outlet 231 is provided at an end of the expanded diameter section 28 adjacent to the throat 281. The velocity of the first medium guided out by the throat 281 is the maximum velocity, and the pressure of the first medium is the minimum, so that a larger negative pressure can be formed at the position of the second channel 12 close to the second outlet 231, so as to suck the second medium into the expanding section 28, reduce the risk of the second medium flowing back to the first liquid inlet channel 23, and improve the atomization effect of the second medium.

In some embodiments, as shown in connection with fig. 7 and 8, the first channel 20 further includes an isodiametric segment 29. One end (left end in fig. 7) of the constant diameter section 29 is connected to the first inlet 201 of the first passage 20, and the other end (right end in fig. 7) of the constant diameter section 29 is connected to the reduced diameter section 27 as shown in fig. 8, and the cross-sectional area of the constant diameter section 29 is equal to the cross-sectional area of the first end 271 of the reduced diameter section 27. Wherein the first medium is introduced from the first inlet 201 to the constant diameter section 29 and then enters the reduced diameter section 27 from the constant diameter section. In some embodiments, the end of the constant diameter section 29 near the first inlet 201 may further be provided with a second reducing section, where one end of the second reducing section forms the first inlet 201, and the other end of the second reducing section is connected to the end of the constant diameter section 29 far away from the reducing section 27, where the second reducing section is provided at one end of the constant diameter section 29, so as to facilitate further increasing the speed of the first medium entering the first channel 20 from the first inlet 201, and reducing the pressure of the first medium, thereby increasing the negative pressure sucked into the second medium and improving the mist effect of dispersing the second medium.

In some embodiments, as shown in connection with fig. 7 and 9, the sleeve assembly 1 includes a barrel 13 and a cap 14. The cylinder 13 is provided with a part of the first accommodating groove 10 inside, the cover 14 is detachably connected with the cylinder 13, and another part of the first accommodating groove 10 is formed inside the cover 14, wherein one end (the left end shown in fig. 3) of the core 2 in the axial direction is abutted with the cylinder 13, and the other end (the right end shown in fig. 7) of the core 2 in the axial direction is abutted with the cover 14. The embodiment of the present invention is not limited to the manner in which the cylinder 13 is connected to the cover 14, for example, in the embodiment shown in fig. 9, the cylinder 13 may be connected to the cover 14 by a screw, and in other embodiments, the cylinder 13 may be detachably connected to the cover 14 by a screw or a clamping structure. According to the embodiment of the invention, the cylinder body and the cover body are detachably connected, so that the core part is conveniently assembled into the first accommodating groove, and the core part is independently manufactured, thereby being beneficial to improving the processing efficiency and the assembling efficiency.

In some embodiments, as shown in fig. 7 and 9, the nozzle device further includes a sealing ring 3, where the sealing ring 3 is disposed between one end (the left end shown in fig. 7) of the core 2 in the axial direction and the cylinder 13, that is, the sealing ring 3 is used to close the gap between the core 2 and the cylinder 13, reducing the risk that the first medium introduced into the first channel 20 by the air inlet channel 132 flows from the gap to the second channel 12, and facilitating the formation of a larger negative pressure in the first channel 20 to suck the second medium in the second channel into the first channel, thereby facilitating the atomization of the dry cleaning solvent.

In some embodiments, as shown in fig. 7, the cartridge 13 further includes a liquid inlet channel 131 and an air inlet channel 132. The liquid inlet channel 131 is communicated with the second channel 12, and the liquid inlet channel 131 is used for guiding the second medium to the second channel 12; the air intake passage 132 communicates with the first inlet 201 of the first passage 20, and the air intake passage 132 is configured to guide the first medium into the first passage 20. As shown in fig. 7, the liquid inlet channel 131 is connected to an end of the second channel 12 away from the first liquid inlet channel 23, that is, the second medium guided in the liquid inlet channel 131 enters the second channel from an end of the second channel, and the end of the liquid inlet channel 131 connected to the second channel is axially away from the first liquid inlet channel 23. In the embodiment of the invention, a certain gap is formed at the position where the cover 14 is connected with the cylinder 13, gas outside the nozzle device 100 can enter the second channel 12 from the gap, a second medium in the liquid inlet channel 131 can be flushed into the second channel 12 according to a certain frequency gap, and the second medium can impact the gas in the second channel 12 to enable the second medium to be dispersed into smaller liquid drops in the second channel 12, so that pre-atomization in the second channel is realized. According to the embodiment of the invention, the connecting position of the liquid inlet channel 131 and the second channel is far away from the first liquid inlet channel 23, so that the gas storage capacity in the second channel can be prolonged, and the pre-atomization time of the second medium in the second channel can be prolonged.

In some embodiments, as shown in fig. 1, the laundry treating apparatus further includes an air inlet pipe 501, an air outlet pipe 502, and an air inlet pipe 503. The air inlet pipe 501 is connected to the air inlet 401 of the pump 400, and the air inlet pipe 501 is used for introducing air outside the clothes treating apparatus into the pump 400 through the air inlet 401 of the pump 400, and increasing the pressure of the air and increasing the speed of air export through the pump 400. As shown in fig. 3 and 4, the air outlet pipe 502 is connected to the air outlet 402 of the pump 400 and an end of the air inlet channel 132 away from the first channel 20, that is, the air outlet pipe 502 is used for guiding the high-pressure air into the air inlet channel 132, and finally guiding the high-pressure air into the first channel 20 through the air inlet channel 132. As shown in fig. 1, the liquid inlet pipe 503 is connected to the inlet 300 and an end of the liquid inlet channel 131 far from the second channel 12, the liquid inlet pipe 503 is used for guiding the dry cleaning solvent thrown in by the inlet 300 to the liquid inlet channel 131, guiding the dry cleaning solvent into the second channel 12 through the liquid inlet channel 131, and sucking the dry cleaning solvent in the second channel 12 into the first channel 20 through the first liquid inlet channel 23 on the core 2. The high pressure gas impinges upon the dry cleaning solvent causing the dry cleaning solvent to be dispersed by the small size droplets to form a mist spray into the receiving chamber.

As shown in fig. 4, the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503 in the embodiment of the invention are located at the front side of the front support 200, and the first outlet 202 is located at the rear side of the front support 200. Specifically, the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503 are connected to the cylinder 13 of the nozzle device 100, the other side of the cylinder 13 is located at the rear side of the front support 200, and the rear side of the cylinder 13 is detachably connected to the cover 14. According to the embodiment of the invention, the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503 are arranged on the front side of the front support body 200, and the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503 are connected with the cylinder 13 of the nozzle device 100 on the front side of the front support body 200, so that the arrangement of through holes penetrating the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503 on the front support body 200 can be avoided, the sealing of the accommodating cavity in the clothes treatment equipment is facilitated, and the cover 14 is not connected with the air inlet pipe 501, the air outlet pipe 502 and the liquid inlet pipe 503, the flexibility of the detachment of the cover 14 and the cylinder 13 is facilitated, and the replacement and the maintenance are facilitated.

In some embodiments, as shown in connection with fig. 2, 3 and 4, the nozzle device 100 is disposed at an upper portion of the front supporter 200, and the first outlet 202 is directed toward a rear lower side of the front supporter 200. It should be noted that the vertical direction of the laundry treating apparatus according to the embodiment of the present invention indicates the direction of the laundry treating apparatus in the normal use state, wherein the front of the front support 200 indicates the side of the front support 200 close to the user, and the rear of the front support 200 indicates the side of the front support 200 away from the user. The front supporter 200 is provided with openings penetrating both front and rear sides, the openings communicating with the accommodating chamber 701, and a user can take and put laundry into the accommodating chamber 701 through the openings. The nozzle device 100 according to the embodiment of the present invention is disposed at the upper portion of the front support 200, it being understood that the nozzle device 100 is disposed above the opening. And the first outlet 202 of the nozzle device 100 faces to the rear lower side of the front support 200, wherein the rear lower side indicates that the dry cleaning solvent sprayed from the first outlet 202 moves downward into the accommodating cavity 701 at a certain inclination angle. According to the embodiment of the invention, the nozzle device is arranged on the front support body at a certain inclination angle, so that the spraying distance of the dry cleaning solvent sprayed from the first outlet is increased, the area of the dry cleaning solvent sprayed to the clothes in the accommodating cavity is increased, and the cleanliness of the clothes in the accommodating cavity is improved.

In some embodiments, as shown in connection with fig. 1 and 2, the pump 400 is disposed below the front side of the front support 200. The embodiment of the present invention is advantageous in reducing the interference of the pump to the receiving cavity and in reducing the interference of the vibration of the pump to the receiving cavity by disposing the pump 400 at the front side of the front supporter 200. The pump positioned at the front side of the front support body can be accommodated by the space formed between the front side panel of the clothes treating apparatus and the front support body, the pump and the front support body can realize modular production, which is beneficial to reducing the assembly difficulty of the dry cleaning solvent throwing device, improving the structural compactness of the clothes treating apparatus, improving the feasibility and reliability of the mass production of the products formed by the front support body and the dry cleaning solvent throwing device, and facilitating the after-sale maintenance of the products.

In some embodiments, as shown in connection with fig. 1 and 2, the pump 400 and the delivery port 300 are disposed on the left and right sides of the front support 200, respectively. The left and right sides represent the sides of the laundry treating apparatus facing the user in a normal use state. In the embodiment of the invention, the pump 400 and the delivery port 300 are arranged at two sides of the front support body 200, so that the air inlet pipe 501 and the air outlet pipe 502 can be arranged at the left side of the front support body 200, and the liquid inlet pipe 503 can be arranged at the right side of the front support body 200, that is, each part in the dry cleaning solvent delivery device 100a can be distributed at two sides of the front support body, which is beneficial to reducing wiring difficulty and improving assembly compactness.

In some embodiments, as shown in connection with fig. 1 and 2, the laundry treatment apparatus further comprises a liquid storage cartridge 600. The liquid storage box 600 is used for storing dry cleaning solvent, and the liquid storage box 600 is communicated with the delivery port 300 and is arranged below the front side of the front support body 200. The liquid storage box 600 is used for storing the dry cleaning solvent thrown in from the throwing port 300, wherein the liquid storage box 600 in the embodiment of the invention is arranged at a position close to the throwing port 300, which is beneficial to enabling the dry cleaning solvent thrown in by the throwing port 300 to quickly flow into the liquid storage box 600, thereby improving the flow guiding efficiency of the dry cleaning solvent, reducing the risk of overflowing of the dry cleaning solvent at the throwing port 300 and reducing the throwing time of the dry cleaning solvent. And the throwing port 300 is close to the liquid storage box 600, so that the length of a conduit connected with the liquid storage box 600 by the throwing port 300 is reduced, the residual quantity of the dry cleaning solvent in the conduit is reduced, and the utilization rate of the dry cleaning solvent thrown in by the throwing port 300 is improved.

In some embodiments, the cartridge 600 is adjacent to the dispensing port 300 and the center of the cartridge 600 is lower than the dispensing port 300. It should be noted that, the center of the liquid storage box 600 represents the geometric center of the liquid storage box 600, that is, the overall center of the liquid storage box 600 is lower than the height of the dispensing opening 300, which is beneficial to guiding the dry cleaning solvent dispensed from the dispensing opening 300 into the liquid storage box 600 as much as possible, thereby improving the dispensing efficiency of the dry cleaning solvent.

In some embodiments, the nozzle arrangement intermittently sprays the gas-liquid mixture. It will be appreciated that intermittent injection, i.e. having a certain time interval between the last injection and the next injection, does not belong to a continuous injection. The embodiment of the invention can perform pulse spraying of the dry cleaning solvent, so that a certain time interval is provided between the previous spraying of the dry cleaning solvent onto the clothes and the next spraying of the dry cleaning solvent onto the clothes by the spraying component, and compared with the continuous spraying of the dry cleaning solvent, the time interval can enable the clothes fiber and the dry cleaning solvent to be fused, and the decontamination capability of the next dry cleaning solvent can be reused after the decontamination function generated by the fusion of the previous dry cleaning solvent and the clothes is fully utilized, so that the decontamination capability of the clothes can be improved, and the utilization efficiency of the dry cleaning solvent can be improved.

In some embodiments, the pump 400 is a pulsed air pump to intermittently eject a flow of air, thereby enabling intermittent ejection of liquid, resulting in the effect of intermittent ejection of a mixture of gas and liquid. The embodiment of the invention adopts the pulse air pump to realize the intermittent spraying effect, does not need to limit the position relation of other parts of the dry cleaning solvent throwing device, and has convenient implementation mode.

In some embodiments, as shown in FIG. 1, the nozzle device 100 and the cartridge 600 may have a height differential of 10-120 cm. It will be appreciated that in normal operation, the nozzle device 100 is located near the upper portion of the front support, and the reservoir 600 is located near the lower portion of the front support, i.e. the nozzle device 100 has a certain height difference from the reservoir 600. According to the above analysis, the pump 400 supplies the gas to the first passage in the nozzle device 100, the negative pressure is generated in the first passage, the liquid storage box 600 is communicated with the delivery port 300 to be in a normal pressure state, the liquid in the liquid storage box 600 can be sucked through the liquid inlet pipe 503 and the second passage in the nozzle device 100 to reach the first passage, the gas pressure in the first passage impacts the atomization of the liquid when the liquid reaches the first passage, and meanwhile, the liquid entering the first passage is close to the position with the smallest cross section of the first passage (the position with the smallest pressure) because the liquid enters the first passage, the gas flow of the first passage is blocked in a very short time, so that the negative pressure in the first passage does not exist, the liquid in the first passage is flushed out correspondingly, the gas in the first passage is continuously flowed, and the negative pressure sucked liquid is generated again, so that the intermittent liquid suction and the pulsed mist spraying effects are generated. It will be appreciated that in the case of a pump-stabilized gas delivery, the negative pressure that can be generated in the first channel of the nozzle device 100 is substantially stabilized, i.e.: the pressure difference between the first channel and the liquid storage box is a fixed value. The pressure difference between the negative pressure and the normal pressure provides upward power for sucking the liquid, the liquid can be sucked to a position higher than the initial position (the position of the liquid storage box) by only when the pressure difference is larger than ρgh (ρ is the liquid density, g is the gravity constant, h is the height difference of sucking and lifting, ρgh represents the gravity of the sucked liquid), and the liquid cannot be sucked to the height under the condition that h is larger because the pressure difference between the first channel in the nozzle device and the liquid storage box is a fixed value, and h cannot be too large, and if h is too small, the pressure difference does work against the gravity of the liquid, namely, the sucked liquid is still more power beyond h, so that the liquid cannot stay in the first channel, namely, intermittent spraying is not formed but continuous spraying is formed.

It will be appreciated that there are a variety of ways to achieve intermittent spraying, including the flow rate of the spray gas, the pressure and stability, the density of the liquid to be drawn, the height of the reservoir and the nozzle, etc., and that intermittent spraying may be achieved by using a pulsed air pump and/or adjusting the appropriate height difference between the reservoir and the nozzle.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A laundry treatment apparatus, comprising:

2. Laundry treatment apparatus according to claim 1, characterized in that the dry cleaning solvent delivery device comprises:

3. The laundry treatment apparatus of claim 2, further comprising:

And the pump is communicated with one end of the body to convey the first medium, and the other end of the body ejects the mixture of the first medium and the second medium.

4. The laundry treatment apparatus according to claim 2, wherein the body has a first passage inside, the first medium comprises a gas, the second medium comprises a dry cleaning solvent, the first passage mixes the gas and the dry cleaning solvent into a gas-liquid mixture, and the first passage comprises a first outlet for spraying the gas-liquid mixture.

5. The laundry treatment apparatus of claim 4, wherein the nozzle device comprises:

the sleeve assembly is internally provided with a first accommodating groove;

6. The garment treatment apparatus of claim 5, wherein an air intake passage and a liquid intake passage are also provided in the sleeve assembly, the core having the first passage therein communicating with the air intake passage; a second channel communicated with the liquid inlet channel is formed between the outer side wall of the core part and the inner side wall of the sleeve assembly, and the core part is provided with a first liquid inlet channel communicated with the first channel and the second channel.

7. The laundry treatment apparatus of claim 6, wherein the first passage comprises:

8. The laundry treatment apparatus of claim 7, wherein the first passage further comprises:

9. The laundry treatment apparatus of claim 6, further comprising:

the air inlet pipe is connected with the air inlet of the pump;

10. Laundry treatment apparatus according to claim 9, characterized in that the nozzle device is arranged in an upper part of the front support, and the first outlet is directed towards the rear lower side of the front support.

11. The laundry treatment apparatus according to claim 10, wherein the pump is disposed below a front side of the front support.

12. The laundry treatment apparatus of claim 4, further comprising:

13. Laundry treatment apparatus according to claim 12, characterized in that the pump and the delivery opening are provided on the left and right sides of the front support, respectively.

14. The laundry treatment apparatus of claim 12, further comprising:

15. The laundry treatment apparatus of claim 14, wherein the reservoir is proximate the delivery port and the center of the reservoir is lower than the delivery port.

16. The laundry treatment apparatus of claim 14, wherein the nozzle device intermittently ejects the gas-liquid mixture.

17. Laundry treatment apparatus according to claim 16, characterized in that the nozzle device is 10-120 cm in height from the reservoir.

18. The laundry treatment apparatus of claim 16, wherein the pump is a pulsed air pump.