CN211713464U - Spraying device and clothes treatment device - Google Patents

Abstract

The utility model is suitable for a domestic appliance technical field provides a atomizer and clothing processing apparatus. The spraying device comprises a water inlet device; the bubble processor is used for increasing the number of bubbles in the water flow entering the bubble processor and outputting the generated water-gas mixture; the first connecting pipe is used for communicating the output end of the water inlet device with the input end of the bubble processor; the water-gas mixture passes through the spray head and then outputs mist; and the second connecting pipe is used for communicating the output end of the bubble processor with the input end of the spray head. In this practical embodiment, adopt above-mentioned atomizer, just need not additionally set up the device that generates water smoke specially in atomizer, and utilize the inside pipe-line design of atomizer to produce the bubble and pressurize and produce water smoke, atomization effect is good, has with low costs, the efficient advantage of injection moreover.

Description

Spraying device and clothes treatment device

Technical Field

The utility model belongs to the technical field of domestic appliance, especially, relate to a atomizer and clothing processing apparatus.

Background

When the wrinkle removing treatment is carried out on the dry clothes, the wrinkles of the clothes are required to be effectively removed, and the moisture, heat, pressure and time are all too short. The application of moisture to the clothes also becomes an indispensable link in the wrinkle removing process. In addition, during the heat treatment or the like of the dried laundry, the high temperature further dissipates the moisture adsorbed on the surface of the laundry, so that the laundry becomes increasingly dry and the electrical conductivity thereof becomes further deteriorated. Static electricity generated by friction between the laundry and the treating apparatus and friction between the laundry and the treating apparatus is difficult to be effectively conducted, thereby generating high static electricity to the laundry. Therefore, the application of moisture to the laundry is also advantageous in improving the conductivity of the laundry and reducing the generation of static electricity. The existing clothes drying equipment is poor in moisture effect generated when water is added to clothes.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a spraying device and a clothes treating apparatus to solve the technical problem of poor effect of generating moisture.

In order to solve the above problem, the embodiment of the present invention provides a technical solution that:

a spray device comprising: a water inlet device; the bubble processor is used for increasing the number of bubbles in the water flow entering the bubble processor and outputting the generated water-gas mixture; the first connecting pipe is used for communicating the output end of the water inlet device with the input end of the bubble processor; the water-gas mixture passes through the spray head and then outputs mist; and the second connecting pipe is used for communicating the output end of the bubble processor with the input end of the spray head.

In one possible embodiment, the bubble processor has formed therein: the input flow channel is communicated with the input end of the bubble processor; the output flow channel is communicated with the output end of the bubble processor; the transition flow passage is communicated with the input flow passage and the output flow passage; the maximum cross-sectional area of the input flow channel is larger than that of the transition flow channel, and the maximum cross-sectional area of the output flow channel is larger than that of the transition flow channel.

In one possible embodiment, the cross-sectional area of the output flow channel is greater than the cross-sectional area of the input flow channel.

In one possible embodiment, the showerhead comprises: the main body piece is internally provided with a main body flow passage communicated with the input end of the spray head; the plug piece is fixedly connected with the main body piece, a cavity communicated with the main body flow passage is formed in the plug piece, and the plug piece is provided with an output hole communicated with the cavity and used for outputting the mist; wherein the cross-sectional area of the output aperture is less than the cross-sectional area of the body flow passage.

In one possible embodiment, the showerhead further comprises: the filter element is arranged in the cavity, a filter element flow passage communicated with the main body flow passage and the output hole is formed in the filter element, and the cross sectional area of the filter element flow passage is smaller than that of the main body flow passage and larger than that of the output hole.

In one possible embodiment, the filter element comprises: a filter element body; a structure groove for forming the filter element flow passage is formed inside the filter element; and the rotational flow chamber is formed at one side of the filter element body facing the plug piece, is communicated with the structural groove and is used for enabling water flow to be output in a rotating mode.

In one possible embodiment, the cartridge body comprises a small diameter portion and a large diameter portion connected; wherein the outer diameter of the small diameter part is matched with the diameter of the main body flow passage so as to enable the small diameter part to be inserted into one end of the main body flow passage close to the filter element; the outer diameter of the large-diameter portion is larger than the diameter of the main body flow passage.

In a possible embodiment, the structural grooves include a first structural groove provided in the small diameter portion and a second structural groove provided in the large diameter portion, and the first structural groove and the second structural groove communicate with each other through a communication port.

The embodiment of the utility model provides an in still provide a clothing processing apparatus, include: a body, inside which a housing chamber is formed for housing the laundry to be treated, the housing chamber having an opening:

in the spraying device, the spraying device is connected with the body, and the spray head is located in the accommodating cavity.

In a possible embodiment, the laundry treating apparatus further comprises: the door seal is connected with the body and is arranged adjacent to the opening; wherein, the door seal is provided with a through hole for the nozzle to pass through.

The embodiment of the utility model provides a atomizer, including water installations, bubble treater and shower nozzle, rivers enter into the bubble treater by water installations, because the variable cross section that bubble generator inner channel formed sets up, can increase the quantity of the bubble in the rivers that enter into the bubble treater, make rivers can be handled and become aqueous vapor mixture and export, and the shower nozzle is used for being converted into fog output to the aqueous vapor mixture that enters into in the shower nozzle. Like this, realized before atomizing rivers, rivers can be earlier through the processing of bubble treater and become the aqueous vapor mixture that the bubble is a lot, effectively improve the homogeneity that air and water mix in the rivers, and then can improve aqueous vapor mixture by atomizing spun effect in the shower nozzle. By adopting the arrangement, a special water mist generating device does not need to be additionally arranged in the spraying device, and the pipeline design in the spraying device is utilized to generate bubbles and water mist, so that the spraying device has the advantages of low cost and high spraying efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a spraying device provided by an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a bubble processor according to an embodiment of the present invention;

fig. 3 is a left side view of a bubble processor provided by an embodiment of the present invention;

fig. 4 is an exploded view of a showerhead provided in an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a showerhead provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of a filter element according to an embodiment of the present invention;

fig. 7 is another schematic structural view of a filter element according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a laundry treating apparatus according to an embodiment of the present invention.

Description of reference numerals:

1. a spraying device; 11. a water inlet device; 111. an input end; 112. an output end; 12. a bubble processor; 12', processing the structure; 121. an input flow channel; 122. an output flow channel; 123. a transition flow channel; 13. a first connecting pipe; 14. a spray head; 141. a main body member; 1411. a main body flow passage; 142. a plug member; 1421. a cavity; 1422. an output aperture; 143. a filter element member; 1431. a filter element body; 14311. a small diameter part; 14312. a large diameter portion; 1432. a swirl chamber; 1433. a structural groove; 14331. a first structural groove; 14332. a second structural groove; 1434. a communication port; 15. a second connecting pipe; 2. a laundry treating apparatus; 21. a body; 211. an accommodating chamber; 22. and (6) sealing the door.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various combinations of the specific features of the present invention are not described separately.

As shown in fig. 1, the embodiment of the present invention provides a spraying device 1, which is used for converting water flow into atomized spray. Mainly mounted on a laundry treating apparatus 2 (refer to fig. 8) capable of performing a laundry drying process, the laundry treating apparatus 2 may be a dryer or a washer-dryer or the like. By the spraying device 1, clothes can be sprayed in the process of drying the clothes, and the effect of preventing the clothes from wrinkling or generating static electricity is achieved.

As shown in fig. 1, the spraying apparatus 1 includes a water inlet means 11, a bubble treater 12, a first connection pipe 13, a spray head 14, and a second connection pipe 15. The water inlet device 11 is used for controlling the on-off of water flow, and can be an electromagnetic or manual control water inlet valve and the like. The bubble treater 12 is used to increase the amount of bubbles in the water stream entering the bubble treater 12 so that the water stream is treated to be a water-gas mixture with sufficient bubble content and uniform mixing, and the water-gas mixture can be output. The first connection pipe 13 is used to communicate the output end of the water inlet means 11 with the input end of the bubble treater 12 so as to be able to deliver the water flow into the bubble treater 12. The spray head 14 is used for processing the water-gas mixture into mist and outputting the mist. The output end of the bubble processor 12 is communicated with the input end of the spray head 14 through a second connecting pipe 15, so that the water-gas mixture can be input into the spray head 14 for atomization treatment. Specifically, the operating principle of the spraying device 1 is as follows: the water inlet device 11 controls the on/off of the input water flow, and the input water flow enters the bubble processor 12 through the first connection pipe 13. Generally, a certain amount of air is contained or dissolved in the input water flow, and after the water flow enters the bubble processor 12, the bubbles in the water flow can be decomposed into more smaller bubbles through the processing of the bubble processor 12, so as to increase the bubble content in the water flow, and the smaller bubbles can be more sufficiently mixed with the water to form a water-gas mixture, and then the water-gas mixture is input into the spray head 14 through the second connecting pipe 15, and the water-gas mixture is converted into mist inside the spray head 14, so that the water-gas mixture is sprayed out in a mist state.

The embodiment of the utility model provides an in spray set 1, be provided with bubble processor 12 and shower nozzle 14 through the adoption, because the variable cross section that bubble processor 12 inner passage formed sets up, can increase the quantity that enters into bubble processor's rivers in bubble, rivers become bubble quantity after the processing of bubble processor 12 and increase promptly to obtain intensive mixing's aqueous vapor mixture, reentrant into and be transformed into fog in the shower nozzle 14. Like this, because water and air misce bene to when making aqueous vapor mixture carry out atomizing treatment in shower nozzle 14, effectively improved by atomizing effect, make spun fog can keep the granule tiny, even, and then promote the reliability of clothing crease-resistance or the antistatic phenomenon in the stoving in-process.

As shown in fig. 1, the water inlet means 11 comprises an input end 111 and an output end 112. The input 111 is used for introducing water flow into the water inlet device 11, and specifically, the input 111 may be connected to a water source outside the spraying device 1, may be a water source from the inside of the clothes treatment device 2, or may be a water source outside the clothes treatment device 2, which is not limited in this respect. The output end 112 is used for guiding the water flow in the water inlet device 11 into the first connecting pipe 13, and the output end 112 and the first connecting pipe 13 can be detachably connected, and a sealing member can be arranged between the output end 112 and the first connecting pipe 13 to keep the connection position from leaking. The output end 112 may be spaced apart from the input end 111, i.e., a distance therebetween, to facilitate connection of the pipes. In addition, a flow controller may be provided to the water inlet 11, such as a flow control valve, for controlling the flow rate of the water at the output 112 of the water inlet 11. Optionally, a filter may be provided in the water inlet means 11 to filter the water flow to avoid clogging of the spraying device 1.

Specifically, the first connection pipe 13 and the second connection pipe 15 may be a hard transparent or non-transparent material, such as a rubber pipe, a PVC pipe (PVC for short), and the like, and the structural shape thereof may be a straight line shape, a broken line shape, or a curved line shape with a certain curvature. Moreover, the connection mode between the two ends of the first connection pipe 13 and the second connection pipe 15 and the corresponding parts is detachable, and the specific mode includes but is not limited to gluing, buckling, and screwing, etc. so as to facilitate disassembly and assembly.

As shown in fig. 1 and 2, in the embodiment of the present invention, the bubble processor 12 is internally formed with an input flow passage 121, an output flow passage 122, and a transition flow passage 123. The input flow path 121 communicates with an input end of the bubble treater 12, and the input end of the bubble treater 12 is used for connection with the first connection pipe 13. The output flow passage 122 communicates with the output end of the bubble treater 12, the output end of the bubble treater 12 is used for connecting with the second connection pipe 15, and the transition flow passage 123 communicates with the input flow passage 121 and the output flow passage 122. Also, the maximum cross-sectional area of the input flow path 121 is greater than that of the transition flow path 123, and the maximum cross-sectional area of the output flow path 122 is greater than that of the transition flow path 123. This arrangement minimizes the cross-sectional area of the transition flow passage 123 between the inlet flow passage 121 and the outlet flow passage 122. After the water flow is inputted through the input flow path 121, it flows to the transition flow path 123 along the flowing direction, and since the cross-sectional area of the transition flow path 123 is minimized, the dynamic pressure (velocity) of the water flow at the narrowest position reaches the maximum value, and the static pressure (resting pressure) reaches the minimum value. I.e., the velocity of the water flow rises as the cross-sectional area of the transition flow passage 123 decreases. Specifically, since the cross-sectional area of the input flow path 121 is gradually reduced in the direction connected to the transition flow path 123 (the flow direction of the water current), the cross-sectional area of the output flow path 122 is gradually increased in the flow direction of the water current. Thus, the incoming water flows in the input flow channel 121 and is gradually collected along the change of the cross section of the input flow channel 121, and in the process of flow collection, the cross section area of the input flow channel 121 is gradually reduced, so that the water and the air are collected, the purpose of further dissolving the air and the water is achieved, and a better mixing state is achieved when the air and the water pass through the transition flow channel 123. After the water flow flows into the output flow channel 122, along with the gradual increase of the cross-sectional area of the output flow channel 122, the air dissolved in the water can be decomposed into countless fine bubbles due to the expansion of the flow channel cross-section, so that the number of the bubbles in the water flow is increased, the uniformity of mixing of the water and the air is further improved, and the water and the air in the water-air mixture obtained after the water-air mixture is processed by the bubble processor 12 are fully mixed.

In the above, by setting the maximum cross-sectional area of the input flow path 121 to be larger than the maximum cross-sectional area of the transition flow path 123, the maximum cross-sectional area of the output flow path 122 is set to be larger than the maximum cross-sectional area of the transition flow path 123. By the arrangement, a flow passage structure formed by the input flow passage 121, the transition flow passage 123 and the output flow passage 122 can meet the structure of the venturi effect. Therefore, in the process that the water flows in each flow channel, the cross-sectional area of the water flow from the input flow channel 121 to the transition flow channel 123 is reduced from large to small, so that the water flow is reduced from thick to thin, and the flow speed of the water flow is increased. It can be known from bernoulli's law that the flow velocity of the water flow increases and the pressure of the fluid decreases, so that the fluid forms a "vacuum" region at the rear side of the outlet of the transition flow channel 123, and a certain adsorption effect is generated on the air around the water flow, so that the air is sucked into the water flow, and the water flow is filled with air bubbles. The bubbles in the water stream are then allowed to disperse into numerous tiny bubbles to achieve thorough mixing with the water.

As shown in fig. 3, in the embodiment of the present invention, a plurality of processing structures 12' formed by an input flow path 121, a transition flow path 123 and an output flow path 122 connected in sequence are disposed inside the bubble processor 12. In this way, the water flows are uniformly merged after being treated by each treatment structure 12', and the uniformity of mixing between the air and the water in the formed water-air mixture can be reliably improved.

As shown in fig. 2, in the embodiment of the present invention, the cross-sectional area of the output flow channel 122 is also set to be larger than that of the input flow channel 121. Thus, after the water flow flows into the output flow channel 122 through the transition flow channel 123, the speed of the water flow can be reduced along with the gradual increase of the cross-sectional area of the output flow channel 122, so that the time for dissolving the decomposed fine bubbles and water is prolonged, and the uniformity of mixing the bubbles and the water is improved.

As shown in fig. 4 and 5, the head 14 includes a body member 141 and a plug member 142. The body member 141 has a body flow passage 1411 formed therein to communicate with the input end 111 of the head 14. The plug member 142 is fixedly connected to the main body member 141, a cavity 1421 communicated with the main body flow passage 1411 is formed inside the plug member 142, and an output hole 1422 communicated with the cavity 1421 and used for outputting mist is formed in the plug member 142. Also, the cross-sectional area of the output port 1422 is smaller than the cross-sectional area of the body flow passage 1411. Specifically, the cross-sectional area of the main body flow passage 1411 may be set to be constant or may be gradually reduced in accordance with the extending direction of the main body flow passage 1411. The cross-sectional area of the output hole 1422 may be gradually reduced or kept unchanged along with the mist spraying direction, and the specific arrangement mode may be selected according to the actual use requirement, and meanwhile, the cross-sectional area of the output hole 1422 is smaller than the cross-sectional area of the main body flow passage 1411. With this arrangement, after the water-air mixture is input into the main body flow passage 1411 through the second connection pipe 15, because the cross-sectional area of the output hole 1422 in the plug 142 is suddenly reduced compared to the cross-sectional area of the main body flow passage 1411, the water pressure is increased, so that the speed of the water flow sprayed from the output hole 1422 can be increased, and the water flow sprayed from the output hole 1422 at a high speed rubs with the surrounding air, so as to be split into fine mist-like droplets, thereby achieving the atomization effect.

As shown in fig. 5 and 6, the spray head 14 further includes a filter element 143. The filter element 143 is disposed within a cavity 1421 formed within the plug member 142, and a filter element flow passage is formed within the filter element 143 to communicate the main body flow passage 1411 with the output port 1422, and the cross-sectional area of the filter element flow passage is smaller than the cross-sectional area of the main body flow passage 1411 and larger than the cross-sectional area of the output port 1422. With this arrangement, the incoming water-air mixture enters the main body flow passage 1411, passes through the cartridge flow passage, and then exits the outlet port 1422, since the cartridge flow passage has a cross-sectional area that is smaller than the cross-sectional area of the main body flow passage 1411 and larger than the cross-sectional area of the outlet port 1422. Thus, in the process from entering the nozzle 14 to spraying, the water-air mixture passes through the first cross-sectional area mutation from the main body flow passage 1411 to the filter element flow passage and the second cross-sectional area mutation from the filter element flow passage to the output hole 1422, so that the internal water pressure can be pressurized for the second time under the two cross-sectional area mutations, the water flow speed sprayed from the output hole 1422 is effectively improved, and the atomization effect and efficiency are favorably improved.

As shown in fig. 6 and 7, the cartridge member 143 includes a cartridge body 1431 and a swirl chamber 1432. The filter element body 1431 is internally provided with a structure groove 1433 (refer to fig. 5) for forming a filter element flow passage, and the swirl chamber 1432 is formed at one side of the filter element body 1431 facing the plug member, and is communicated with the structure groove 1433 for rotating and outputting water flow. Specifically, the groove 1433 is preferably extended to form a "spiral" shape, and the length of the extension may be half, three-quarters, or other ways around the perimeter of the inner wall of the cartridge body 1431, as desired. With the arrangement, the formed spiral filter element flow channel rotates at a high speed in the water flow channel after entering the water flow channel, and rotates and advances towards the direction of the output hole 1422, a tangential speed and an axial speed are generated in the rotating and advancing process, and under the combined action of the tangential speed and the axial speed, the water flow is thrown out of the output hole 1422 and rubs with surrounding air at a high speed to be split into fine mist particles to form mist.

As shown in fig. 6 and 7, cartridge body 1431 includes a small diameter portion 14311 and a large diameter portion 14312 that are connected. The outer diameter of the small diameter portion 14311 matches the diameter of the main body flow passage 1411 so that the small diameter portion 14311 can be inserted into one end of the main body flow passage 1411 near the filter element 143; and the outer diameter of the large diameter portion 14312 is larger than the diameter of the body flow passage 1411. Therefore, after the small diameter portion 14311 is inserted into the main body flow passage 1411, the small diameter portion 14311 can be restricted by a step surface formed between the large diameter portion 14312 and the small diameter portion 14311, and a depth of the small diameter portion 14311 inserted into the main body flow passage 1411 can be positioned. Further, referring to fig. 5, since the small diameter portion 14311 has a certain thickness, after being inserted into the main body flow passage 1411, it blocks the water and gas mixture and allows the water and gas mixture to flow into the filter element flow passage, which is equivalent to guiding the water and gas mixture to pass through the filter element flow passage with a smaller cross-sectional area. In this way, the small diameter portion 14311 provided in the main body flow passage 1411 plays a role of increasing the water pressure for the first time due to the reduction of the cross-sectional area through which the water-air mixture passes, which is advantageous to the improvement of the flow velocity of the water-air mixture.

As shown in fig. 6 and 7, in one possible embodiment, the structure groove 1433 is configured to include a first structure groove 14331 disposed on the small diameter portion and a second structure groove 14332 disposed on the large diameter portion, and the first structure groove 14331 and the second structure groove 14332 are communicated through a communication port 1434. Specifically, the first structure groove 14331 and the second structure groove 14332 are respectively located at two opposite ends of the filter element body 1431, and the first structure groove 14331 and the second structure groove 14332 are preferably distributed in a staggered mode in a spiral mode, so that when water flows from the first structure groove 14331 to the second structure groove 14332, a rotational flow can be generated, and the atomization effect is improved.

In the embodiment of the present invention, as shown in fig. 4, the main body member 141 is detachably connected to the plug member 142. That is, the connection between the main body member 141 and the plug member 142 can be realized by a screw connection, a snap connection, or the like. This facilitates cleaning of the interior of the head 14 and the filter element 143, as well as replacement of the filter element 143.

As shown in fig. 8, the embodiment of the present invention further provides a clothes treatment apparatus 2, which includes a body 21 and the spraying apparatus 1. The body 21 is internally formed with an accommodating chamber 211 for accommodating laundry to be treated, the accommodating chamber 211 having an opening. The spraying device 1 is connected with the body 21, the spray head 14 is located in the accommodating cavity 211, and the output hole 1422 on the spray head 14 can be communicated with the accommodating cavity 211, so as to spray mist into the accommodating cavity 211. Specifically, the spraying device 1 is used for spraying a proper amount of clothes during the drying process of the clothes to prevent the clothes from generating wrinkles or static electricity. Therefore, the laundry treating apparatus 2 may be a dryer or a washer-dryer, etc. In practical use, the clothes to be dried are put into the accommodating cavity 211 through the opening for drying, and the spraying device 1 is used for spraying mist to the clothes into the accommodating cavity 211 according to the required fixed quantity. Because the atomization effect of the spraying device 1 is good, the sprayed mist can not only prevent the clothes from being too dry, but also avoid wetting the clothes, and reliably improve the drying treatment effect of the clothes.

As shown in fig. 8, the laundry treating apparatus 2 further includes a door seal 22. The dock seal 22 is connected to the body 21 and is disposed adjacent to the opening. The door seal 22 is provided with a through hole through which the head 14 passes. After the nozzle 14 passes through the through hole, mist can be sprayed into the accommodation chamber 211. Specifically, the door seal 22 is connected with the door body of the clothes treatment device 2 to seal the accommodating cavity 211, so that the sealing performance of the accommodating cavity 211 is ensured when clothes drying treatment is performed, and the working efficiency of the clothes treatment device 2 is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A spray device, comprising:

a water inlet device;

the bubble processor is used for increasing the number of bubbles in the water flow entering the bubble processor and outputting the generated water-gas mixture;

the first connecting pipe is used for communicating the output end of the water inlet device with the input end of the bubble processor;

the water-gas mixture passes through the spray head and then outputs mist;

and the second connecting pipe is used for communicating the output end of the bubble processor with the input end of the spray head.

2. The spray device of claim 1, wherein the bubble processor has formed therein:

the input flow channel is communicated with the input end of the bubble processor;

the output flow channel is communicated with the output end of the bubble processor;

the transition flow passage is communicated with the input flow passage and the output flow passage;

the maximum cross-sectional area of the input flow channel is larger than that of the transition flow channel, and the maximum cross-sectional area of the output flow channel is larger than that of the transition flow channel.

3. A spraying device according to claim 2 wherein the cross-sectional area of the outlet flow passage is greater than the cross-sectional area of the inlet flow passage.

4. The spraying apparatus of claim 1, wherein the spray head comprises:

the main body piece is internally provided with a main body flow passage communicated with the input end of the spray head;

the plug piece is fixedly connected with the main body piece, a cavity communicated with the main body flow passage is formed in the plug piece, and the plug piece is provided with an output hole communicated with the cavity and used for outputting the mist;

wherein the cross-sectional area of the output aperture is less than the cross-sectional area of the body flow passage.

5. The spraying device of claim 4, wherein the spray head further comprises:

the filter element is arranged in the cavity, a filter element flow passage communicated with the main body flow passage and the output hole is formed in the filter element, and the cross sectional area of the filter element flow passage is smaller than that of the main body flow passage and larger than that of the output hole.

6. The spray device of claim 5, wherein the filter element comprises:

a filter element body; a structure groove for forming the filter element flow passage is formed inside the filter element;

and the rotational flow chamber is formed at one side of the filter element body facing the plug piece, is communicated with the structural groove and is used for enabling water flow to be output in a rotating mode.

7. The spray device of claim 6, wherein the cartridge body includes a connected small diameter portion and a large diameter portion; wherein the outer diameter of the small diameter part is matched with the diameter of the main body flow passage so as to enable the small diameter part to be inserted into one end of the main body flow passage close to the filter element; the outer diameter of the large-diameter portion is larger than the diameter of the main body flow passage.

8. The spray device of claim 7, wherein the structural grooves include a first structural groove provided in the small diameter portion and a second structural groove provided in the large diameter portion, the first structural groove and the second structural groove communicating through a communication port.

9. A laundry treating apparatus, comprising:

a body, inside which a containing cavity for containing clothes to be treated is formed, wherein the containing cavity is provided with an opening;

a spraying device according to any one of claims 1 to 8, which is connected to the body, the spray head being located within the receiving chamber.

10. The laundry treating apparatus of claim 9, further comprising:

the door seal is connected with the body and is arranged adjacent to the opening;

wherein, the door seal is provided with a through hole for the nozzle to pass through.

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