Foam generating device, putting assembly and clothes treating equipment

By designing a proportionally optimized foam generator in the clothing treatment equipment, the problem of the washing substances in the existing equipment cannot be fully dissolved and bubbled, and a better washing effect and user experience is achieved.

CN222796004UActive Publication Date: 2025-04-25WUXI MEIZHI ELECTRIC CO LTD
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Patent Information

Application Number
CN202421569790.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-04-25
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

When washing existing clothing treatment equipment, washing substances such as laundry detergent cannot fully dissolve and bubble, resulting in poor washing effect and affecting the user experience.

Method used

A foam generator is designed to improve foaming efficiency and quality by setting a liquid inlet on the shrinking section and limiting the ratio range between the inlet diameter and the diameter of the shrinking section (0.4≤d2/d1≤0.45).

Benefits of technology

By optimizing the design of the foam generation device, the dissolution efficiency of the washing substance and the foam generation quality are improved, and the washing effect and user experience are significantly improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foam generating device, a putting assembly and clothes processing equipment. The foam generating device comprises a hole shrinkage section, a liquid inlet is formed in the hole shrinkage section, the diameter of the hole shrinkage section is d1, the diameter of the liquid inlet is d2, and d2 / d1 is larger than or equal to 0.4 and smaller than or equal to 0.45. According to the foam generating device disclosed by the utility model, the proportion range between the diameter of the liquid inlet and the diameter of the reducing section is limited, so that the foaming efficiency of the foam generating device is ensured, and meanwhile, the liquid cost of washing substances can be considered.
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Description

Technical Field

[0001] The utility model relates to the field of clothing processing equipment, in particular to a foam generating device, a delivery component and clothing processing equipment. Background Art

[0002] When washing clothes, the existing clothes processing equipment usually puts the detergent and other detergents directly into the clothes processing chamber of the clothes processing equipment, or puts the detergents into the delivery component and then washes them away with tap water. This method cannot make the detergents fully dissolved and foamed, and the washing effect is poor, which affects the user experience of the clothes processing equipment. In the related art, structures such as venturi tubes are usually used as devices for generating foam, and factors such as the size of such structures will affect the generation of foam. Therefore, it is necessary to design a suitable size range. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a foam generating device. According to the foam generating device of the utility model, the ratio range between the diameter of the liquid inlet and the diameter of the reduced diameter section is limited, so as to ensure the foaming efficiency of the foam generating device while taking into account the liquid cost of the washing material.

[0004] The utility model also provides a delivery assembly comprising the foam generating device.

[0005] The utility model also provides a clothing processing device comprising the above-mentioned placing component.

[0006] According to the utility model, the foam generating device comprises a diameter-reducing section, on which a liquid inlet is arranged, the diameter of the diameter-reducing section is d1, the diameter of the liquid inlet is d2, and the following condition is satisfied: 0.4≤d2 / d1≤0.45.

[0007] When d2 / d1<0.4, the diameter of the liquid inlet is smaller than the diameter of the reduced diameter section. At this time, the amount of detergent entering the main flow path through the liquid inlet is small, which will lead to insufficient detergent in the main flow path, reduce the generated foam, and then lead to a decrease in the washing effect; when d2 / d1>0.45, the diameter of the liquid inlet is larger than the diameter of the reduced diameter section. At this time, the amount of detergent entering the main flow path through the liquid inlet is large, which will lead to excessive detergent in the main flow path. Due to the limited size of the main flow path, the excessive detergent cannot be foamed in time before flowing out of the foam generating device, which will lead to a decrease in the washing effect and an increase in cost. Therefore, the diameter of the liquid inlet should be in a relatively suitable range with the diameter of the reduced diameter section. For example, d2 / d1 is preferably 0.43. When d2 / d1=0.43, the foaming effect is better than other values.

[0008] According to one embodiment of the utility model, the foam generating device includes a first section and a second section, one end of the first section is connected to the inlet of the foam generating device; the second section is constructed as the reduced diameter section, one end of the second section is connected to the other end of the first section, and the liquid inlet is provided on the second section; wherein the diameter of the second section is smaller than the diameter of the first section.

[0009] According to an embodiment of the present invention, one end of the third section is connected to the other end of the second section, the other end of the third section is connected to the outlet of the foam generating device, and the diameter of the third section is greater than the diameter of the second section.

[0010] According to an embodiment of the utility model, an air intake port connected to the external air is formed on the reduced diameter section, and the air intake port is at least partially opposite to the liquid inlet in the radial direction.

[0011] According to one embodiment of the present utility model, 2.5 mm≤d1≤3.5 mm.

[0012] According to one embodiment of the present utility model, 1mm≤d2≤1.5mm.

[0013] According to an embodiment of the present invention, the diameter of the second section is d1, the diameter of the air intake port is d3, and the condition 0.45≤d3 / d1≤0.55 is satisfied.

[0014] According to one embodiment of the present utility model, 1.2 mm≤d3≤2 mm.

[0015] According to an embodiment of the present invention, the diameter of the second section is d1, the diameters of the first section and the third section are d4, and they satisfy 0.35≤d1 / d4≤0.45.

[0016] The following briefly describes the delivery assembly according to the present utility model.

[0017] The dispensing assembly according to the utility model includes the foam generating device and the foam dispensing device in the above-mentioned embodiment, wherein the foam dispensing device is connected to the foam generating device and is suitable for dispensing the foam generated by the foam generating device. The foam generating device is mainly used to generate foam; and the foam dispensing device is mainly used to dispense the foam mixed liquid, but the foam dispensing device can also generate foam. The foam dispensing assembly uses the cooperation between the foam generating device and the foam dispensing device to make the detergent foam multiple times before being used for washing, and the detergent mixed liquid containing foam can increase the contact area with the object to be washed, so that the washing effect is better, and the cleaning effect of the dispensing assembly is improved.

[0018] The following is a brief description of the clothes processing device according to the present utility model.

[0019] According to the utility model, the clothing processing device includes the dispensing component in the above-mentioned embodiment. Since the clothing processing device according to the utility model is provided with the dispensing component in the above-mentioned embodiment, the dispensing component can be assembled into the workbench of the clothing processing device. When the dispensing component is assembled, the cleaning effect of the clothing processing device can be improved, thereby improving the user experience.

[0020] To summarize, the foam generating device is provided with a first section, a second section and a third section which are connected in sequence, wherein the second section is provided with a liquid inlet and an air intake port, and the size or size relationship ratio ranges of the first section, the second section, the third section, the liquid inlet and the air intake port are limited. Through reasonable planning and design, the efficiency of the liquid inlet for taking in washing materials, the efficiency of the air inlet for taking in air, the flow rate of the mixed liquid in the second section and the third section are in a relatively balanced state, which can improve the foaming efficiency and foaming quality of the foam generating device, thereby improving the cleaning effect of the foam generating device.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic diagram of a foam generating device according to an embodiment of the utility model;

[0024] Figure 2 is a structural diagram of a delivery component according to an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the cooperation between a foam generating device and a foam dispensing device according to one embodiment of the utility model.

[0026] Reference numerals:

[0027] Delivery component 1;

[0028] A foam generating device 120;

[0029] The first section 1201, the second section 1202, the third section 1203, the liquid inlet 121, the air inlet 122;

[0030] The foam delivery device 16 , the first bubble outlet 161 , the second bubble outlet 162 , the bubble inlet 163 , the cylinder 164 , and the spiral blade 165 . DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] When washing clothes, the existing clothes processing equipment usually puts the detergent and other detergents directly into the clothes processing chamber of the clothes processing equipment, or puts the detergents into the delivery component and then washes them away with tap water. This method cannot make the detergents fully dissolved and foamed, and the washing effect is poor, which affects the user experience of the clothes processing equipment. In the related art, structures such as venturi tubes are usually used as devices for generating foam, and factors such as the size of such structures will affect the generation of foam. Therefore, it is necessary to design a suitable size range.

[0033] Reference below Figure 1-Figure 3 The foam generating device according to the embodiment of the utility model is described.

[0034] According to the utility model, the foam generating device 120 comprises a reduced diameter section, on which a liquid inlet 121 is arranged, the diameter of the reduced diameter section is d1, the diameter of the liquid inlet 121 is d2, and the following condition is satisfied: 0.4≤d2 / d1≤0.45.

[0035] Since the liquid inlet 121 is arranged in the reduced diameter section, the size relationship between the liquid inlet 121 and the reduced diameter section will affect the generation of foam. Specifically, if the diameter of the reduced diameter section is d1 and the diameter of the liquid inlet 121 is d2, then the following is satisfied: 0.4≤d2 / d1≤0.45. Among them, when d2 / d1<0.4, the diameter of the liquid inlet 121 is smaller than the diameter of the reduced diameter section. At this time, the amount of detergent entering the main flow path through the liquid inlet 121 is small, which will lead to insufficient detergent in the main flow path, reduce the generated foam, and thus lead to a decrease in the washing effect; when d2 / d1>0.45, the diameter of the liquid inlet 121 is larger than the diameter of the reduced diameter section. At this time, the amount of detergent entering the main flow path through the liquid inlet 121 is large, which will lead to excessive detergent in the main flow path. Due to the limited size of the main flow path, the excessive detergent cannot be foamed in time before flowing out of the foam generating device 120, thereby leading to a decrease in the washing effect. Therefore, the diameter of the liquid inlet 121 and the diameter of the reduced diameter section should be in a relatively suitable range. For example, d2 / d1 is preferably 0.43. When d2 / d1=0.43, the foaming effect is better than other values.

[0036] In some embodiments, the cleaning substance may be a detergent, a softener, a bactericide, or other functional preparations for cleaning.

[0037] According to one embodiment of the utility model, the foam generating device 120 includes a first section 1201 and a second section 1202, wherein one end of the first section 1201 is connected to the inlet of the foam generating device 120; the second section 1202 is constructed as a reduced diameter section, wherein one end of the second section 1202 is connected to the other end of the first section 1201, and a liquid inlet 121 is provided on the second section 1202; wherein the diameter of the second section 1202 is smaller than the diameter of the first section 1201.

[0038] Specifically, the foam generating device 120 is provided with a first section 1201 and a second section 1202 connected in sequence, wherein the first section 1201 is connected to the inlet of the foam generating device 120; the second section 1202 connects the first section 1201 with the outlet of the foam generating device 120, water can enter through the inlet of the foam generating device 120 and flow through the first section 1201 and the second section 1202 in sequence and then flow out from the outlet of the foam generating device 120, during this process, detergents can enter the second section 1202 through the liquid inlet 121 on the second section 1202, and the detergents and water are mixed in the second section 1202 to generate foam. The diameter of the second section 1202 is smaller than that of the first section 1201 and the third section 1203. Therefore, the flow rate in the second section 1202 is large, which can accelerate the mixing of the detergent and water. At this time, the mixed liquid can be mixed in the second section 1202 to produce a large amount of foam, which improves the dissolution efficiency of the detergent. The mixed liquid with foam flows out from the third section 1203 to be used for cleaning the laundry, and the cleaning effect is better.

[0039] According to one embodiment of the utility model, the foam generating device 120 also includes: a third section 1203, one end of the third section 1203 is connected to the other end of the second section 1202, and the other end of the third section 1203 is connected to the outlet of the foam generating device 120, and the foam mixed liquid flowing out of the second section 1202 flows out from the outlet of the foam generating device 120 after passing through the third section 1203. In the third section 1203, since the diameter of the third section 1203 is greater than the diameter of the second section 1202, the flow speed of the mixed liquid in the third section 1203 is relatively slow, and the foam can be formed and stabilized in the third section 1203, thereby reducing the proportion of foam rupture, thereby ensuring the cleaning effect of the foam generating device 120.

[0040] According to an embodiment of the present invention, an air inlet 122 communicating with the external air is formed on the reduced diameter section, and the air inlet 122 and the liquid inlet 121 are at least partially opposite to each other in the radial direction.

[0041] Specifically, an air inlet 122 is formed on the reduced diameter section. When the foam generating device 120 is used, the washing material and the water flow enter the reduced diameter section through the liquid inlet 121 and the inlet of the foam generating device 120 respectively and mix in the reduced diameter section. At this time, the external air can enter the reduced diameter section through the air inlet 122. When the washing material and the water flow foam in the foam generating device 120, the amount of foam can be increased due to the intervention of air, so that the foam generating device 120 generates more foam, thereby improving the cleaning effect of the second waterway. In addition, after entering the reduced diameter section, the air can also be retained in the foam, which improves the stability of the foam, increases the retention time of the foam, and further improves the washing effect.

[0042] During processing, the air intake port 122 and the liquid inlet port 121 can be at least partially opposite to each other. Since the air intake port 122 and the liquid inlet hole are at least partially opposite to each other in the radial direction of the reduced diameter section, while the washing material flows into the main flow path through the liquid inlet hole, the external air can directly enter the main flow path through the air intake port 122, ensuring that the air and the mixed liquid are fully contacted and mixed in the main flow path, thereby generating more and more stable foam.

[0043] According to one embodiment of the utility model, 2.5mm≤d1≤3.5mm. Since the size of d1 will affect the flow rate of the detergent and water in the reduced diameter section, d1 needs to be maintained in an appropriate range. Specifically, when d1<2.5mm, the diameter of the reduced diameter section is too small. At this time, the flow rate of the detergent and water in the reduced diameter section is too fast, and the detergent and water are difficult to fully mix. The foam generating device 120 generates less foam, which will cause the cleaning effect of the foam generating device 120 to be reduced; when d1>3.5mm, the diameter of the liquid inlet 121 is too large. At this time, the flow rate of the detergent and water in the reduced diameter section is too slow. The mixed liquid after full mixing has a low flow rate and a small impact force, and generates less foam. Therefore, 2.5mm≤d1≤3.5mm is a more appropriate range. Within this range, d1 can preferably be 3mm.

[0044] According to one embodiment of the utility model, 1mm≤d2≤1.5mm. Since the size of d2 will affect the entry of the detergent into the reduced diameter section, d2 needs to be maintained in a suitable range. Specifically, when d2<1mm, the diameter of the liquid inlet 121 is too small. At this time, the rate at which the detergent enters the reduced diameter section is low, and the foam generating device 120 generates less foam, which will cause the cleaning effect of the foam generating device 120 to be reduced; when d2>1.5mm, the diameter of the liquid inlet 121 is too large. At this time, the efficiency of the detergent entering the reduced diameter section is too fast, and too much detergent enters the foam generating device 120, which will cause the room fee of the detergent and increase the cost. Therefore, 1mm≤d2≤1.5mm is a more suitable range, and within this range, d2 can preferably be 1.3mm.

[0045] According to an embodiment of the present invention, the diameter of the second section 1202 is d1, the diameter of the air inlet 122 is d3, and 0.45≤d3 / d1≤0.55 is satisfied. Since the air inlet 122 is disposed in the reduced diameter section, the size relationship between the air inlet 122 and the reduced diameter section affects the generation of foam. Specifically, if the diameter of the reduced diameter section is d1 and the diameter of the air inlet 122 is d3, 0.45≤d3 / d1≤0.55 is satisfied. Among them, when d3 / d1<0.45, the diameter of the air inlet 122 is smaller than the diameter of the reduced diameter section. At this time, the amount of air entering the foam generating device 120 through the air inlet 122 is small, which will lead to insufficient gas mixed with the mixed liquid in the foam generating device 120, which will reduce the quality and quantity of the generated foam, and then lead to a decrease in the washing effect; when d3 / d1>0.55, the diameter of the air inlet 122 is larger than the diameter of the reduced diameter section. At this time, the oversized air inlet 122 is likely to cause the mixed liquid to leak from the air inlet 122. Therefore, the diameter of the air inlet 122 should be in a relatively suitable range with the diameter of the reduced diameter section. For example, d3 / d1 is preferably 0.5. When d3 / d1=0.5, while ensuring the sealing performance, the foaming effect is better than other values.

[0046] According to one embodiment of the utility model, 1.2mm≤d3≤2mm. Since the diameter of the air intake port 122 will affect the air entering the foam generating device 120, the diameter of the air intake port 122 needs to be set within a suitable range. Specifically, when d3<1.2mm, the diameter of the air intake port 122 is too small. At this time, the rate at which air enters the reduced diameter section is low, and the lack of air intervention causes less foam to be generated by the foam generating device 120, which will result in a reduced cleaning effect of the foam generating device 120; when d3>2mm, the diameter of the air intake port 122 is too large. At this time, detergents and water are likely to leak from the air intake port 122. Therefore, 1.2mm≤d3≤2mm is a more suitable range, and within this range, d3 can preferably be 1.3mm.

[0047] According to an embodiment of the present invention, the diameter of the second section 1202 is d1, the diameter of the first section 1201 and the third section 1203 is d4, and 0.35≤d1 / d4≤0.45 is satisfied. Since the second section 1202 is disposed between the first section 1201 and the third section 1203, and the second section 1202 is configured as a variable diameter section, the relationship between the diameter of the second section 1202 and the diameter of the third section 1203 will affect the foaming effect of the mixed liquid in the foam generating device 120. When d1 / d4<0.35, the second section 1202 is too small compared to the third section 1203. At this time, the flow rate in the second section 1202 is too fast, and the detergent and water entering the second section 1202 cannot be mixed completely in time, which will result in a reduction in the final foam; when d1 / d4>0.45, the second section 1202 is too large compared to the third section 1203. At this time, the flow rate between the second section 1202 and the third section 1203 changes very little, and the detergent and water are fully mixed. Due to the small change in the flow rate on the flow path, the mixed liquid will be relatively stable, resulting in less foam. Therefore, 0.35≤d1 / d4≤0.45 is a more suitable range. In this range, d1 / d4=4 can be preferably selected. It should be noted that the diameter of the first section 1201 can be the same as that of the third section 1203.

[0048] The delivery assembly 1 according to the present utility model is briefly described below.

[0049] The dispensing assembly 1 according to the utility model comprises the foam generating device 120 and the foam dispensing device 16 in the above-mentioned embodiment, wherein the foam dispensing device 16 is connected to the foam generating device and is suitable for dispensing the foam generated by the foam generating device 120. The foam generating device 120 is mainly used to generate foam; and the foam dispensing device 16 is mainly used to dispense the foam mixed liquid, but the foam dispensing device 16 can also generate foam. The foam dispensing assembly, through the cooperation between the foam generating device 120 and the foam dispensing device 16, allows the washing material to be foamed multiple times before being used for washing, and the washing material mixed liquid containing foam can increase the contact area with the washing material to be washed, so that the washing effect is better, and the cleaning effect of the dispensing assembly 1 is improved.

[0050] In some embodiments, Figure 3As shown, the foam delivery device 16 is provided with a cylinder 164 and a spiral blade 165, wherein a cavity for accommodating the spiral blade 165 is formed in the cylinder 164, and the spiral blade 165 is fixedly arranged in the cavity of the cylinder 164. The spiral blade 165 can be used to cut the water flow, and the foam delivery device 16 can be connected with the outlet of the foam generating device 120 through the bubble inlet 163 in the middle of the cylinder 164, and the mixed liquid flowing out of the foam generating device 120 can enter the cylinder 164 through the bubble inlet 163, and generate more foam under the action of the spiral blade 165, and the mixed liquid mixed with more foam can flow to the liquid outlet from the first bubble outlet 161 and the second bubble outlet 162 at both ends of the cylinder 164.

[0051] In other embodiments, the foam delivery device 16 may be configured differently from the foam delivery device 16 in the above-mentioned embodiments. The foam delivery device 16 may also be provided with a delivery flow path and an impact flow path. The principles of the delivery flow path and the impact flow path are similar to those of the foam generating device 120. The inlet of the delivery flow path is connected to the outlet of the foam generating device 120. The mixed liquid flowing out of the foam generating device 120 may enter the delivery flow path. At this time, the impact flow path connected to the external water source may introduce water into the delivery flow path, so that the mixed liquid in the delivery flow path is mixed with water again to foam. It may also be simply understood that the mixed liquid in the delivery flow path undergoes the foaming process in the foam generating device 120 again, thereby further increasing the foam content. Similarly, an air intake structure similar to the air inlet 122 may also be provided on the delivery flow path. The provision of the delivery flow path and the impact flow path further increases the foam content in the mixed liquid finally flowing out from the liquid outlet, thereby improving the cleaning effect of the delivery component 1.

[0052] The following is a brief description of the clothes processing device according to the present utility model.

[0053] According to the utility model, the clothing processing device includes the dispensing component 1 in the above embodiment. Since the clothing processing device according to the utility model is provided with the dispensing component 1 in the above embodiment, the dispensing component 1 can be assembled into the workbench of the clothing processing device. When the dispensing component 1 is assembled, the cleaning effect of the clothing processing device can be improved, thereby improving the user experience.

[0054] To summarize, the foam generating device 120 is provided with a first section 1201, a second section 1202 and a third section 1203 which are connected in sequence, wherein the second section 1202 is provided with a liquid inlet 121 and an air intake 122, and the size or size relationship ratio ranges of the first section 1201, the second section 1202, the third section 1203, the liquid inlet 121 and the air intake 122 are limited. Through reasonable planning and design, the efficiency of the liquid inlet 121 for taking in washing materials, the efficiency of the air inlet 122 for taking in air, the flow rate of the mixed liquid in the second section 1202 and the third section 1203 are in a relatively balanced state, which can improve the foaming efficiency and foaming quality of the foam generating device 120, thereby improving the cleaning effect of the foam generating device 120.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0057] In the description of the present invention, "plurality" means two or more.

[0058] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0059] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A foam generating device, characterized in that: include: The reduced diameter section is provided with a liquid inlet, the diameter of the reduced diameter section is d1, the diameter of the liquid inlet is d2, and the following conditions are satisfied: 0.4≤d2 / d1≤0.

45.

2. The foam generating device according to claim 1, characterized in that: The foam generating device comprises: a first section, one end of which is in communication with an inlet of the foam generating device; The second section is configured as the reduced diameter section, one end of the second section is connected to the other end of the first section, and the second section is provided with the liquid inlet; The diameter of the second section is smaller than the diameter of the first section.

3. The foam generating device according to claim 2, characterized in that: The foam generating device also includes: The third section has one end connected to the other end of the second section, the other end of the third section connected to the outlet of the foam generating device, and the diameter of the third section is greater than the diameter of the second section.

4. The foam generating device according to claim 3, characterized in that: An air intake port communicating with the external air is formed on the reduced diameter section, and the air intake port and the liquid inlet are at least partially opposite to each other in the radial direction.

5. The foam generating device according to claim 1, characterized in that: 2.5mm≤d1≤3.5mm.

6. The foam generating device according to claim 1, characterized in that: 1mm≤d2≤1.5mm.

7. The foam generating device according to claim 4, characterized in that: The diameter of the second section is d1, the diameter of the air intake port is d3, and the condition 0.45≤d3 / d1≤0.55 is satisfied.

8. The foam generating device according to claim 7, characterized in that: 1.2mm≤d3≤2mm.

9. The foam generating device according to claim 3, characterized in that: The diameter of the second section is d1, the diameters of the first section and the third section are d4, and 0.35≤d1 / d4≤0.45 is satisfied.

10. A delivery component, characterized in that: include: A foam generating device, wherein the foam generating device is configured as the foam generating device according to any one of claims 1 to 9; A foam delivery device is connected to the foam generating device and is suitable for delivering the foam generated by the foam generating device.

11. A clothes processing device, characterized in that: Includes the delivery component described in claim 10.