Dosing device for laundry treatment apparatus and laundry treatment apparatus

Abstract

A dosing device for a laundry treatment apparatus and a laundry treatment apparatus. The dosing device for a laundry treatment apparatus comprises: a water box (1) and a flow limiting device (2), wherein the water box (1) is provided with a water inlet chamber; a flow limiting channel is formed in the flow limiting device (2), the flow limiting channel is in communication with the water inlet chamber, and the flow limiting device (2) is adapted to limit the fluid flow rate in the flow limiting channel.

Description

Dispensing device for laundry treatment apparatus and laundry treatment apparatus

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present application claims priority to the Chinese patent application No. 202411034667.3, 202421828764.5, filed on July 30, 2024, entitled “Dispensing device for laundry treatment apparatus and laundry treatment apparatus”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of laundry treatment apparatus, and in particular to a dispensing device for laundry treatment apparatus and laundry treatment apparatus. BACKGROUND

[0004] In the field of washing machine technology, the traditional atomization washing technology sprays the detergent atomized by high-pressure water flow to the surface of the clothes to enhance the washing effect and reduce water consumption. However, this technology faces a significant technical problem in practical application: due to the huge pressure generated by the water flow in the high-pressure atomization process, the existing washing machine design often needs to set up a special pressure relief port to balance the system pressure and prevent equipment damage (such as causing water box rupture, leakage or performance degradation, etc.), but this compromise in design directly leads to part of the atomized washing liquid under high pressure backflowing through the pressure relief port to the space between the detergent box and the inner and outer barrels, rather than directly acting on the clothes. This phenomenon not only weakens the penetration and stripping ability of the atomized bubbles on the clothes stains, greatly reducing the advantages of the atomization washing technology, but also causes waste of detergent, reduces the utilization rate of detergent, and increases the user's washing cost.

[0005] SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art.

[0007] To this end, one object of the present application is to propose a dispensing device for laundry treatment apparatus which can cancel the additional setting of a pressure relief port and realize that all washing media can directly act on the clothes, so as to improve the effect of detergent atomization bubbles.

[0008] Another object of the present application is to propose a laundry treatment apparatus having the above-mentioned dispensing device for laundry treatment apparatus.

[0009] A dispensing device for laundry treatment apparatus, comprising: a water box provided with a water inlet cavity; and a flow limiting device, wherein a flow limiting channel is formed in the flow limiting device, the flow limiting channel is in communication with the water inlet cavity, and the flow limiting device is adapted to limit the flow of fluid in the flow limiting channel.

[0010] According to the dispensing device for the clothes treatment equipment provided by the embodiments of the present application, the fluid flow is limited by the flow limiting device, the fluid energy is converted from pressure energy to kinetic energy, the fluid pressure entering the water inlet cavity can be reduced to protect the equipment from high pressure damage, and the additional pressure relief port can be cancelled, so that the washing medium can be prevented from flowing back to the space between the washing agent box and the inner and outer barrels of the clothes treatment equipment, the washing medium can be directly applied to the clothes, the detergent atomization bubble effect can be improved, the utilization rate of the detergent can be improved, the clothes washing effect and efficiency can be enhanced, and the washing cost can be saved.

[0011] According to some embodiments of the present application, the flow limiting device comprises a flow limiting portion arranged in the flow limiting channel and adapted to block at least part of the fluid, and a plurality of flow limiting holes are formed on the flow limiting portion.

[0012] According to some embodiments of the present application, the flow limiting device further comprises a flow limiting structure body, a first pipe body and a second pipe body, a first channel section is formed in the flow limiting structure body, and the flow limiting portion is arranged in the first channel section; the first pipe body and the second pipe body are arranged on both sides of the flow limiting structure body respectively, and a second channel section and a third channel section respectively in communication with the first channel section are formed on the first pipe body and the second pipe body respectively; wherein the first pipe body is adapted to communicate with an external water source, and the second pipe body is adapted to communicate with the water inlet cavity.

[0013] According to some embodiments of the present application, the cross-sectional area of the second channel section is S1, the cross-sectional area of the third channel section is S2, the sum of the cross-sectional areas of the plurality of flow limiting holes is S3, and S1>S3 and S2>S3 are satisfied.

[0014] According to some embodiments of the present application, the cross-sectional area S1 of the second channel section is greater than the cross-sectional area S2 of the third channel section.

[0015] According to some embodiments of the present application, the dispensing device for the clothes treatment equipment further comprises a water inlet valve and a first conduit, one end of the first conduit is sleeved on the outer periphery of the first pipe body, and the other end is connected with the water inlet valve.

[0016] According to some embodiments of the present application, the inner periphery surface of the first conduit is formed with a first limiting portion, the outer periphery surface of the first pipe body is formed with a second limiting portion, and the second limiting portion is adapted to cooperate with the first limiting portion to limit the movement of the first pipe body relative to the first conduit.

[0017] According to some embodiments of the present application, the second limiting parts are configured as a plurality of limiting protrusions arranged in sequence in the extending direction of the first pipe body, and each of the limiting protrusions gradually increases in diameter in the direction close to the flow limiting part.

[0018] According to some embodiments of the present application, the dispensing device for the clothes treating apparatus further comprises a second conduit, one end of the second conduit is sleeved on the outer periphery of the second pipe body, and the other end is connected with the water inlet cavity.

[0019] According to some embodiments of the present application, the inner periphery of the second conduit is formed with a first clamping part, and the outer periphery of the second pipe body is formed with a second clamping part, the second clamping part is adapted to be clamped with the first clamping part.

[0020] According to some embodiments of the present application, the sum of the cross-sectional areas of the plurality of flow limiting holes is less than or equal to 2.5 mm2.

[0021] According to some embodiments of the present application, the flow limiting part is configured as a flange plate, the outer edge of the flange plate protrudes from the first pipe body and the second pipe body, and respectively abuts with the first conduit and the second conduit in the axial direction.

[0022] According to some embodiments of the present application, the first pipe body and the second pipe body are respectively provided with a guide part at the end away from each other, the outer periphery of the two guide parts is respectively provided with a first guide surface and a second guide surface, and the first guide surface and the second guide surface are inclinedly arranged in the direction away from each other and close to the axis.

[0023] A clothes treating apparatus comprising the dispensing device for the clothes treating apparatus according to any one of the above embodiments.

[0024] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a schematic view of a dispensing device for a clothes treating apparatus according to some embodiments of the present application;

[0026] Fig. 2 is a schematic view of a flow limiting device according to some embodiments of the present application;

[0027] Fig. 3 is a schematic view of a flow limiting device according to some embodiments of the present application. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] A dispensing device 1000 for a laundry treating apparatus according to embodiments of the present application and a laundry treating apparatus are described below with reference to Figs. 1-3.

[0030] As shown in Fig. 1, the dispensing device 1000 for a laundry treating apparatus according to embodiments of the first aspect of the present application comprises a water box 1 and a flow restriction device 2.

[0031] The water box 1 is provided with a water inlet cavity; the flow restriction device 2 is formed with a flow restriction passage, which is in communication with the water inlet cavity, and the flow restriction device 2 is adapted to restrict the flow rate of fluid in the flow restriction passage.

[0032] The water box 1 is formed with a water inlet cavity, which can be used for injection, storage and discharge of fluid. The water inlet cavity can have a water inlet and a water outlet. The water outlet can be connected to a spraying system of a laundry treating apparatus to spray a washing medium, such as water and detergent solution, into a laundry treating cavity. The water inlet of the water inlet cavity can be connected to the flow restriction device 2. The flow restriction device 2 can be arranged on or connected to a pipeline of the water inlet. It can be understood that the flow restriction device 2 is located upstream of the water inlet. The flow restriction device 2 is formed with a flow restriction passage, which is in communication with the water inlet cavity of the water box 1. By restricting the flow rate of fluid in the flow restriction passage, i.e. the volume of fluid passing through the flow restriction passage per unit time, the flow velocity of fluid on the inlet side of the flow restriction passage can be increased, which leads to an increase in dynamic pressure of fluid on the inlet side. At the same time, due to the increase in dynamic pressure, the pressure energy (mainly represented by static pressure) of fluid decreases correspondingly to maintain the conservation of total energy (dynamic pressure + static pressure + potential pressure, which can be ignored in a horizontal pipeline). Therefore, due to the increase in flow velocity, the static pressure of fluid near the outlet of the flow restriction passage decreases, which can reduce the pressure of fluid entering the water inlet cavity, and can avoid damage to the apparatus caused by high pressure of fluid, and thus the additional pressure relief port can be cancelled.

[0033] According to the dispensing device 1000 for the laundry treatment apparatus provided in the present application, by setting the flow limiting device 2 to limit the fluid flow, and by converting the fluid energy from pressure energy to kinetic energy, the fluid pressure entering the water inlet cavity can be reduced to protect the apparatus from high pressure, and the additional pressure relief port can be cancelled, so that the backflow of the washing medium from the pressure relief port to the space between the washing agent box and the inner and outer drums of the laundry treatment apparatus can be avoided, the washing medium can be directly applied to the laundry, and the detergent atomization bubble effect can be improved, the utilization rate of the detergent can be improved, the washing effect and efficiency of the laundry can be enhanced, and the washing cost can be saved.

[0034] As shown in FIG. 3, according to some embodiments of the present application, the flow limiting device 2 comprises a flow limiting portion 21, which is arranged in the flow limiting channel and is adapted to block at least part of the fluid, and a plurality of flow limiting holes 21a are formed on the flow limiting portion 21.

[0035] The flow limiting portion 21 can be arranged in the flow limiting channel, and the flow limiting portion 21 can span the entire cross section of the flow limiting channel, or can be designed to cover part of the cross section of the flow limiting channel as needed. Exemplarily, the flow limiting portion 21 can be configured as a flow limiting plate or the like, and the flow limiting portion 21 can block at least part of the fluid in the flow limiting channel. It should be noted that the blocking here is not to completely prevent the fluid from flowing, but to block at least part of the fluid from directly passing through the flow limiting channel. At least part of the fluid needs to bypass the blocking part on the flow limiting portion 21 to pass through the flow limiting channel from the flow limiting hole 21a on the flow limiting portion 21. In this way, the fluid flow can be limited, and the fluid flow rate can be changed. Specifically, when the fluid passes through the flow limiting portion 21, due to the reduction of the flow area, the flow rate of the fluid will increase on the inlet side of the flow limiting portion 21, so that the dynamic pressure of the fluid on the inlet side increases, and the static pressure of the fluid near the outlet of the flow limiting channel decreases, so that the fluid pressure on the outlet side of the flow limiting channel can be reduced.

[0036] In addition, in some specific embodiments of the present application, the flow limiting hole 21a can be configured as a regular-shaped hole such as a circular hole, a rectangular hole or an oval hole, so as to facilitate production and improve the uniformity of the flow distribution; in some other specific embodiments of the present application, the flow limiting hole 21a can also be configured as a special-shaped hole to provide more complex flow control characteristics or to meet specific process requirements.

[0037] As shown in FIG. 2, according to some embodiments of the present application, the flow limiting device 2 further comprises a flow limiting structure body 22, a first pipe body 23 and a second pipe body 24.

[0038] The first passage section is formed in the flow-limiting structure body 22, and the flow-limiting part 21 is arranged in the first passage section. The first pipe body 23 and the second pipe body 24 are arranged on both sides of the flow-limiting structure body 22 respectively, and each has a second passage section and a third passage section which are in communication with the first passage section. The first pipe body 23 is adapted to communicate with an external water source, and the second pipe body 24 is adapted to communicate with the water inlet cavity.

[0039] The first pipe body 23, the flow-limiting structure body 22 and the second pipe body 24 are arranged in sequence, and the second passage section in the first pipe body 23, the first passage section in the flow-limiting structure body 22 and the third passage section in the second pipe body 24 are in communication in sequence. The first pipe body 23 is adapted to communicate with an external water source, and the second pipe body 24 is adapted to communicate with the water inlet cavity of the water box 1, so that the external water source can flow into the water inlet cavity after sequentially flowing through the second passage section, the first passage section and the third passage section. The flow-limiting part 21 is arranged in the first passage section, so that when the fluid flows through the second passage section, the flow-limiting part 21 can block the fluid in the first passage section and adjust the flow of the fluid through the flow-limiting holes 21a. The fluid pressure is reduced after being adjusted by the flow-limiting part 21, and the fluid can enter the water inlet cavity through the third passage section. The supply flow and pressure adjusted fluid can improve the atomization bubble effect of the washing medium, improve the utilization rate of the detergent and the washing effect. In addition, by integrating the flow-limiting part 21 in the flow-limiting structure body 22 and connecting with the first pipe body 23 and the second pipe body 24, the whole flow-limiting device 2 is compact in structure, which is helpful to improve the installation and maintenance convenience.

[0040] As shown in FIGS. 2 and 3, according to some embodiments of the present application, the cross-sectional area of the second passage section is configured as S1, the cross-sectional area of the third passage section is configured as S2, the sum of the cross-sectional areas of the plurality of flow-limiting holes 21a is configured as S3, and S1>S3 and S2>S3 are satisfied.

[0041] Since the flow-limiting part 21 is arranged in the first passage section, the second passage section is located upstream of the plurality of flow-limiting holes 21a, and the cross-sectional area of the second passage section is set to be greater than the sum of the cross-sectional areas of the plurality of flow-limiting holes 21a. In this way, the flow space of the fluid in the second passage section is relatively large, which is helpful for the fluid to flow smoothly and accumulate a certain pressure before reaching the flow-limiting holes 21a. The third passage section is located downstream of the plurality of flow-limiting holes 21a, and the cross-sectional area of the third passage section is also set to be greater than the sum of the cross-sectional areas of the plurality of flow-limiting holes 21a. In this way, after the fluid enters the third passage section through the flow-limiting holes 21a, although the fluid has been subjected to flow-limiting treatment, the fluid still has enough space to continue to flow in the third passage section, which is helpful to improve the flow smoothness of the fluid flowing out of the flow-limiting device 2.

[0042] By setting the size relationship among the cross-sectional area S1 of the second channel segment, the cross-sectional area S2 of the third channel segment, and the sum S3 of the cross-sectional areas of the plurality of flow-restricting holes 21a within the above range, the cross-sectional areas of the second channel segment, the third channel segment, and the flow-restricting holes 21a are reasonable, which can ensure that the flow-restricting device 2 has a good flow-restricting effect on the fluid while improving the smoothness of the fluid flowing out of the flow-restricting device 2, thereby improving the washing efficiency.

[0043] As shown in FIGS. 2 and 3, according to some embodiments of the present application, the cross-sectional area S1 of the second channel segment is greater than the cross-sectional area S2 of the third channel segment.

[0044] By setting the cross-sectional area of the second channel segment to be relatively large, a relatively large buffer space can be provided before the fluid enters the flow-restricting holes 21a, so that the fluid can flow more smoothly, and turbulence or impact caused by excessively fast flow rate or excessively large flow volume can be reduced, thereby protecting the flow-restricting device 2 from impact damage and facilitating the adaptability of the flow-restricting device 2 to conventional flow volumes (such as 4 L / min or 8 L / min, etc.) of external water sources. In addition, the relatively large cross-sectional area is also helpful for storing more fluid when needed, so as to accurately control the subsequent process. By setting the cross-sectional area of the third channel segment to be relatively small, the flow rate and flow speed of the fluid can be limited when the fluid enters the third channel segment through the flow-restricting holes 21a, thereby ensuring the flow rate and flow speed of the fluid entering the water inlet cavity from the third channel segment, and improving the control accuracy of various parameters (such as detergent solution concentration, water temperature, etc.) in the subsequent laundry treatment process. Therefore, by reasonably configuring the cross-sectional areas of the second channel segment and the third channel segment, the working stability of the dispensing device 1000 for the laundry treatment equipment under different working conditions can be improved. The second channel segment with a relatively large cross-sectional area can reduce the influence of fluid fluctuations or external interference on system stability, while the third channel segment with a relatively small cross-sectional area can ensure that the fluid is sufficiently controlled and adjusted before entering the laundry treatment area.

[0045] As shown in FIG. 1, according to some embodiments of the present application, the dispensing device 1000 for the laundry treatment equipment further comprises a water inlet valve 3 and a first conduit 4.

[0046] One end of the first conduit 4 is sleeved on the outer periphery of the first pipe body 23, and the other end is connected with the water inlet valve 3.

[0047] The first conduit 4 has a certain length, and two ends of the first conduit 4 in the extension direction are connected with the first pipe body 23 and the water inlet valve 3 respectively to realize the conduction of the first pipe body 23 and the water inlet valve 3. The water inlet valve 3 can accurately control the external water source entering the first conduit 4 to flexibly adjust the water amount entering the first pipe body 23 through the first conduit 4, so that appropriate water flow with appropriate temperature can be provided according to different stages and needs of clothes treatment, and the flexibility of water flow control can be improved to provide users with more efficient, convenient and comfortable clothes treatment experience.

[0048] It should be noted that the above assembly form of the first conduit 4 sleeved at the outer periphery of the first pipe body 23 is beneficial to ensure good connection stability between the first conduit 4 and the first pipe body 23, and can make the connection between the first conduit 4 and the first pipe body 23 convenient and intuitive, which helps to improve the assembly efficiency and maintenance convenience of the first conduit 4 and the first pipe body 23.

[0049] As shown in FIGS. 1 and 2, according to some embodiments of the present application, the inner periphery of the first conduit 4 is formed with a first limiting portion, and the outer periphery of the first pipe body 23 is formed with a second limiting portion 232 adapted to cooperate with the first limiting portion to limit the movement of the first pipe body 23 relative to the first conduit 4.

[0050] The inner periphery of the first conduit 4 and the outer periphery of the first pipe body 23 are respectively formed with a first limiting portion and a second limiting portion 232 adapted to cooperate with the first limiting portion. The first limiting portion can be a structure such as a protrusion, a groove or a clamping groove formed on the inner periphery of the first conduit 4, and the second limiting portion 232 can correspondingly be a structure such as a groove, a protrusion or a clamping buckle matched with the first limiting portion. Through the limiting cooperation of the first limiting portion and the second limiting portion 232, on the one hand, the assembly positioning accuracy and precision of the first pipe body 23 and the first conduit 4 can be improved to ensure the stability and accuracy of the position of the first pipe body 23 relative to the first conduit 4, so that accidental movement or deviation of the first pipe body 23 during work can be prevented, thereby effectively ensuring the accuracy and stability of water flow delivery; on the other hand, through the limiting cooperation of the first limiting portion and the second limiting portion 232, the connection strength between the first conduit 4 and the first pipe body 23 can be enhanced, and connection loosening or damage caused by vibration or external force can be avoided.

[0051] As shown in FIG. 2, according to some embodiments of the present application, the second limiting portion 232 is configured as a plurality of second limiting portions 232 arranged in sequence in the extension direction of the first pipe body 23, and each second limiting portion 232 is configured as a limiting protrusion extending away from the first pipe body 23 in the radial direction, and the diameter of each limiting protrusion gradually increases in the direction close to the flow limiting portion 21.

[0052] The second limiting part 232 can be configured as a plurality of, and the first limiting part is configured as a plurality of corresponding to the second limiting part 232. By increasing the number of the second limiting part 232 and the first limiting part, the limiting point and the connecting area between the first pipe body 23 and the first conduit 4 can be increased, which helps to improve the stress dispersion uniformity of the first pipe body 23 and the first conduit 4 when subjected to external force, and further enhances the connection stability of the two, improves the working reliability of the two and prolongs the service life.

[0053] Furthermore, each second limiting part 232 is configured as a limiting protrusion extending away from the first pipe body 23 in the radial direction, and the diameter of each limiting protrusion gradually increases in the direction close to the flow limiting part 21. The plurality of first limiting parts on the first conduit 4 are configured as limiting grooves matched with the plurality of limiting protrusions. The limiting protrusion is adapted to extend into the corresponding limiting groove to achieve limiting matching. The diameter of the limiting protrusion gradually increases in the direction close to the flow limiting part 21, which can realize the abutment of the limiting protrusion and the limiting groove in the extension direction of the first pipe body 23, and play a good movement limiting effect on the first pipe body 23 and the first conduit 4 in the extension direction, which can further improve the connection stability and reliability of the first pipe body 23 and the first conduit 4.

[0054] As shown in FIG. 1, according to some embodiments of the present application, the dispensing device 1000 for the clothes treatment apparatus further comprises a second conduit 5, one end of the second conduit 5 is sleeved on the outer periphery of the second pipe body 24, and the other end is connected with the water inlet cavity.

[0055] The second conduit 5 has a certain length, and the two ends of the second conduit 5 in the extension direction are respectively connected with the second pipe body 24 and the water inlet cavity to realize the conduction between the second pipe body 24 and the water inlet cavity. After the fluid flows from the water inlet valve 3 through the first conduit 4 and the first pipe body 23 in turn, the flow limiting adjustment can be realized in the flow limiting structure body 22 through the flow limiting part 21, and the flow limiting adjusted fluid can flow into the water inlet cavity through the second pipe body 24 and the second conduit 5 in turn, for subsequent clothes treatment. By setting the second conduit 5, the fluid can be well guided, so that the fluid can quickly and accurately enter the water inlet cavity, so as to improve the efficiency and quality of the whole clothes treatment process, and at the same time, the convenience of separate maintenance and replacement of the second pipe body 24 and the water box 1 can be improved.

[0056] Similarly, the assembly form of the second conduit 5 sleeved on the outer periphery of the second pipe body 24 is beneficial to ensure the good connection stability between the second conduit 5 and the second pipe body 24, and can make the connection between the second conduit 5 and the second pipe body 24 convenient and intuitive, which helps to improve the assembly efficiency and maintenance convenience of the second conduit 5 and the second pipe body 24.

[0057] As shown in FIG. 1 and FIG. 2, according to some embodiments of the present application, the inner circumferential surface of the second conduit 5 is formed with a first clamping portion, and the outer circumferential surface of the second pipe body 24 is formed with a second clamping portion, which is suitable for clamping cooperation with the first clamping portion.

[0058] The inner circumferential surface of the second conduit 5 and the outer circumferential surface of the second pipe body 24 are respectively formed with a first clamping portion and a second clamping portion, which are suitable for clamping cooperation. The specific shape and size of the first clamping portion and the second clamping portion can be designed according to actual needs. For example, the first clamping portion and the second clamping portion can be protrusions and grooves, tooth grooves or other structures that can be engaged with each other. By setting the first clamping portion and the second clamping portion, the connection stability between the second pipe body 24 and the second conduit 5 can be improved, and the working reliability of the second conduit 5 and the second pipe body 24 can be improved. At the same time, the clamping cooperation is also easy to install and disassemble between the second conduit 5 and the second pipe body 24. For example, during installation, the user only needs to set the second conduit 5 on the second pipe body 24, and then rotate or press slightly to ensure that the first clamping portion and the second clamping portion are engaged with each other. When it is necessary to maintain or replace parts, they can also be easily separated.

[0059] As shown in FIG. 3, according to some embodiments of the present application, the sum of the cross-sectional areas of the plurality of flow limiting holes 21a is less than or equal to 2.5 mm2.

[0060] When the sum of the cross-sectional areas of the plurality of flow limiting holes 21a is too large, for example, the sum of the cross-sectional areas of the plurality of flow limiting holes 21a is 3 mm2or 3.5 mm2, etc., it will cause the flow limiting degree of the flow limiting portion 21 to be too small, resulting in poor flow limiting and pressure reducing effect, affecting the safety of the equipment and the utilization rate of the detergent. The sum of the cross-sectional areas of the plurality of flow limiting holes 21a in the present application is set in the range of less than or equal to 2.5 mm2, so that the flow limiting holes 21a have a suitable flow area. In this way, the flow limiting degree of the flow limiting device 2 can be ensured, and the flow limiting and pressure reducing requirements of the fluid in the water inlet cavity can be met. The additional pressure relief port can be cancelled, the washing medium can directly act on the clothes, the detergent atomization bubble effect can be improved, and the utilization rate of the detergent can be improved.

[0061] It should be pointed out that the minimum value of the sum of the cross-sectional areas of the plurality of flow limiting holes 21a can be designed according to different requirements of different clothes treatment equipment. However, the sum of the cross-sectional areas of the plurality of flow limiting holes 21a cannot be too small, especially the cross-sectional area of a single flow limiting hole 21a. If it is too small, impurities may accumulate or the viscosity of the fluid may increase during long-term use, causing the flow limiting hole 21a to be blocked, reducing the washing efficiency and effect.

[0062] In addition, in some embodiments of the present application, the number of flow-limiting holes 21a is configured to be five, each flow-limiting hole 21a has the same flow area, four flow-limiting holes 21a are arranged at intervals in the circumferential direction, and one flow-limiting hole 21a is arranged at the center of the flow-limiting portion 21 and inside the four flow-limiting holes 21a. In this way, when the fluid passes through the flow-limiting holes 21a, each flow-limiting hole 21a bears the same flow, and the fluid is uniformly distributed in the circumferential and radial directions, which can improve the uniformity and stability of the overall flow.

[0063] As shown in FIGS. 1-3, according to some embodiments of the present application, the flow-limiting portion 21 is configured as a flange plate, the outer edge of the flange plate protrudes from the first pipe body 23 and the second pipe body 24, and respectively abuts the first conduit 4 and the second conduit 5 in the axial direction.

[0064] The flow-limiting portion 21 can be configured as a flange plate, and the outer edge of the flange plate protrudes from the first pipe body 23 and the second pipe body 24. The protruding outer edge of the flange plate can abut the first conduit 4 and the second conduit 5 in the axial direction. By abutting, the contact area between the first conduit 4, the second conduit 5 and the flange plate can be increased, and the contact stress can be reduced. In this way, it is helpful to improve the connection sealing and stability between the first conduit 4, the second conduit 5 and the flow-limiting device 2. At the same time, this abutting mode can also play a good assembly positioning role, which can simplify the installation process and improve the connection efficiency. In addition, by configuring the flow-limiting portion 21 as a flange plate, the flange plate has good structural strength and rigidity, which helps to enhance the stability of the flow-limiting portion 21 and improve the working reliability.

[0065] In some embodiments of the present application, the projection of the flange plate in the axial direction of the first pipe body 23 is configured as a regular hexagon, so as to enhance the structural stability of the flange plate and maximize the use of space in a limited space, thereby improving the utilization rate of the internal space of the clothes treatment equipment.

[0066] As shown in FIG. 2, according to some embodiments of the present application, the first pipe body 23 and the second pipe body 24 are each provided with a guide portion at the end away from each other, the outer periphery of the two guide portions is respectively provided with a first guide surface and a second guide surface, and the first guide surface and the second guide surface are inclinedly arranged in the direction away from each other and close to the axis.

[0067] The first pipe body 23 can be provided with a first guide portion 231 at one end thereof away from the second pipe body 24, and the first guide portion 231 is provided with a first guide surface on the outer periphery thereof, and the first guide surface is inclined towards the axis in a direction away from the second pipe body 24, and the first guide surface can play a good positioning and guiding role for the assembly of the first pipe body 23 and the first conduit 4, which is conducive to improving the assembly accuracy and assembly efficiency; the second pipe body 24 can be provided with a second guide portion 241 at one end thereof away from the first pipe body 23, and the second guide portion 241 is provided with a second guide surface on the outer periphery thereof, and the second guide surface is inclined towards the axis in a direction away from the first pipe body 23, and similarly, the second guide surface can play a good positioning and guiding role for the assembly of the second pipe body 24 and the second conduit 5, which is conducive to improving the assembly accuracy and assembly efficiency.

[0068] In addition, the first guide surface and the second guide surface are both inclined, and the inclination directions are away from each other and close to the axis, so that the first guide portion 231 and the second guide portion 241 also have a limiting effect, which can improve the anti-disengagement performance between the first pipe body 23 and the first conduit 4, and between the second pipe body 24 and the second conduit 5, and further improve the working reliability of the flow limiting device 2, the first pipe body 23 and the second pipe body 24.

[0069] As shown in FIGS. 1-3, the laundry treating apparatus according to the second aspect of the present application comprises the dispensing device 1000 for a laundry treating apparatus according to any one of the above embodiments, and the technical effects are the same as those of the above embodiments, which will not be repeated here.

[0070] In summary, the dispensing device 1000 for a laundry treating apparatus comprises a water box 1, a flow limiting device 2, a water inlet valve 3, a first conduit 4 and a second conduit 5, the water inlet valve 3, the first conduit 4, the flow limiting device 2, the second conduit 5 and the water box 1 are sequentially communicated, wherein the water inlet valve 3 can control the external water source entering the first conduit 4, the flow limiting device 2 forms a flow limiting passage therein, the flow limiting passage is communicated with the water inlet cavity of the water box 1, and the flow limiting portion 21 in the flow limiting device 2 can limit the flow rate of the fluid in the flow limiting passage, so as to reduce the fluid pressure entering the water inlet cavity, thereby protecting the equipment from high pressure damage, canceling the additional pressure relief port, realizing that the washing medium can directly act on the laundry, improving the detergent atomization bubble effect, and improving the utilization rate of the detergent.

[0071] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0072] In the description of the application, "first feature" and "second feature" can include one or more of the features.

[0073] In the description of the application, "a plurality of" means two or more.

[0074] In the description of the application, the first feature "above" or "below" the second feature can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them.

[0075] In the description of the application, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in height.

[0076] In the description of the application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the application, the illustrative description 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.

[0077] Although embodiments of the application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1.A dispensing device for a laundry treating apparatus, wherein, The water box is provided with a water inlet cavity. The flow limiting device is provided with a flow limiting passage, and the flow limiting passage is in communication with the water inlet cavity. The flow limiting device comprises a flow limiting portion, which is arranged in the flow limiting passage and is adapted to block at least part of the fluid, and a plurality of flow limiting holes are formed on the flow limiting portion. 2.The dosing device for a laundry treating apparatus according to claim 1, wherein, The dispensing device for the clothes treatment equipment further comprises: 3.The dosing device for a laundry treating apparatus according to claim 2, wherein, The flow limiting structure body is provided with a first passage section, and the flow limiting portion is arranged in the first passage section. The first pipe body and the second pipe body are respectively arranged on two sides of the flow limiting structure body and are respectively provided with a second passage section and a third passage section in communication with the first passage section. The first pipe body is adapted to communicate with an external water source, and the second pipe body is adapted to communicate with the water inlet cavity. The cross-sectional area of the second passage section is S1, the cross-sectional area of the third passage section is S2, the sum of the cross-sectional areas of the plurality of flow limiting holes is S3, and S1>S3 and S2>S3 are satisfied. 4.The dosing device for a laundry treating apparatus according to claim 3, wherein, The cross-sectional area S1 of the second passage section is greater than the cross-sectional area S2 of the third passage section. 5.The dosing device for a laundry treating apparatus according to claim 4, wherein, The dispensing device for the clothes treatment equipment further comprises a water inlet valve and a first conduit, one end of the first conduit is sleeved on the outer periphery of the first pipe body, and the other end is connected with the water inlet valve. 6.The dosing device for a laundry treating apparatus according to claim 3, wherein, The inner periphery of the first conduit is provided with a first limiting portion, and the outer periphery of the first pipe body is provided with a second limiting portion adapted to cooperate with the first limiting portion to limit the movement of the first pipe body relative to the first conduit. 7.The dosing device for a laundry treating apparatus according to claim 6, wherein, The second limiting portion is configured as a plurality of limiting protrusions arranged in sequence in the extension direction of the first pipe body, and each limiting protrusion gradually increases in diameter in the direction close to the flow limiting portion. 8.The dosing device for a laundry treating apparatus according to claim 7, wherein, The dispensing device for the clothes treatment equipment further comprises a second conduit, one end of the second conduit is sleeved on the outer periphery of the second pipe body, and the other end is connected with the water inlet cavity. 9.The dosing device for a laundry treating apparatus according to claim 6, wherein, The inner periphery of the second conduit is provided with a first clamping portion, and the outer periphery of the second pipe body is provided with a second clamping portion adapted to be clamped and matched with the first clamping portion. 10.The dosing device for a laundry treating apparatus according to claim 9, wherein, The sum of the cross-sectional areas of the plurality of flow limiting holes is less than or equal to 2.5 mm2. 11.The dosing device for a laundry treating apparatus as claimed in claim 2, wherein, The flow limiting portion is configured as a flange plate, and the outer edge of the flange plate protrudes from the first pipe body and the second pipe body and respectively abuts with the first conduit and the second conduit in the axial direction. 12.The dosing device for a laundry treating apparatus according to claim 9, wherein, The first pipe body and the second pipe body are respectively provided with a first guide surface and a second guide surface on the outer periphery of the two guide portions, and the first guide surface and the second guide surface are inclined to be close to the axis in the direction away from each other. 13.The dosing device for a laundry treating apparatus according to claim 3, wherein, The dispensing device for the clothes treatment equipment of any one of claims 1-13. 14.A laundry treating apparatus, wherein, The dispensing device for the clothes treatment equipment of any one of claims 1-13. ​

Images