Additive feeding structure, working method thereof and clothes processing device

Abstract

The invention provides an additive feeding structure, a working method thereof and a clothes processing device. The clothes processing device comprises at least a first water containing barrel and a second water containing barrel. The additive feeding structure comprises an additive injection part, a first-stage extraction mechanism, an additive containing part, a first second-stage extraction mechanism and a second second-stage extraction mechanism. The additive injection part is connected with the additive containing part through a first-stage extraction mechanism, and the first-stage extraction mechanism can extract the additive in the additive injection part and supply the additive to the additive containing part. The additive containing part is connected with the first secondary extraction mechanism and the second secondary extraction mechanism, the first secondary extraction mechanism is connected with the first water containing barrel, and the second secondary extraction mechanism is connected with the second water containing barrel. The first secondary extraction mechanism can extract liquid in the additive containing part and supply the liquid to the first water containing barrel; the second secondary extraction mechanism can extract the liquid in the additive containing part and supply the liquid to the second water containing barrel.

Description

Technical Field

[0001] The present application relates to the technical field of clothing processing, and in particular to an additive delivery structure and a working method thereof, and a clothing processing device. Background Art

[0002] The clothing processing device needs to use an extraction mechanism to supply detergents and other additives required for processing clothing to the water tub, and there is usually a height difference between the location where the detergent is stored and the location where the additives are injected into the water tub. This height difference will cause the extraction mechanism to bear greater pressure, which will in turn affect the service life of the extraction mechanism and may cause water leakage in the extraction mechanism. At the same time, if the clothing processing device uses an extraction mechanism with a greater pressure-bearing capacity, it will often lead to a decrease in the detergent delivery accuracy of the extraction mechanism. As users' demand for clothing processing gradually increases, some clothing processing devices are designed with multiple water tubs to meet users' clothing processing needs. The additive delivery structure also needs to make adaptive changes as the number of water tubs increases. Summary of the invention

[0003] This application is made in view of the above-mentioned state of the prior art. The purpose of this application is to provide an additive delivery structure, which includes a primary extraction mechanism and a secondary extraction mechanism. By setting up a two-stage extraction mechanism, the pressure of the extraction mechanism can be reduced while ensuring the delivery accuracy of the additive.

[0004] The present application also provides a working method of the above-mentioned additive delivery structure.

[0005] The present application also provides a clothing processing device including the above-mentioned additive delivery structure.

[0006] The present application provides an additive delivery structure for delivering additives into a water tub of a clothes treatment device, wherein the clothes treatment device comprises at least a first water tub and a second water tub, and is characterized in that the additive delivery structure comprises an additive injection portion, a primary extraction mechanism, an additive accommodating portion, a first secondary extraction mechanism and a second secondary extraction mechanism,

[0007] The additive injection part is connected to the additive storage part via the primary extraction mechanism, and the primary extraction mechanism can extract the additive in the additive injection part and supply it to the additive storage part.

[0008] The additive containing part is connected to the first secondary extraction mechanism and the second secondary extraction mechanism, the first secondary extraction mechanism is connected to the first water tub, and the second secondary extraction mechanism is connected to the second water tub,

[0009] The first two-stage extraction mechanism can extract the liquid in the additive storage part and supply it to the first tub; the second two-stage extraction mechanism can extract the liquid in the additive storage part and supply it to the second tub.

[0010] In at least one possible embodiment, the additive delivery structure further includes a switching portion.

[0011] The additive containing part is connected to the first secondary extraction mechanism and the second secondary extraction mechanism via the switching part, and the switching part is used to control the on-off of the pipeline so that the liquid in the additive containing part can flow into the first secondary extraction mechanism or the second secondary extraction mechanism.

[0012] In at least one possible implementation, the switching unit includes a switching valve.

[0013] The switching part enables the additive delivery structure to simultaneously form only one passage between the additive containing part and the secondary extraction mechanism, so that the additive containing part is only connected to the first secondary extraction mechanism or the second secondary extraction mechanism.

[0014] In at least one possible embodiment, the laundry treatment device further includes a third water tub, and the additive delivery structure further includes a third secondary extraction mechanism.

[0015] The additive containing part is connected to the third two-stage extraction mechanism via the switching part, and the third two-stage extraction mechanism is connected to the third water tank.

[0016] The third secondary extraction mechanism is capable of extracting the liquid in the additive storage portion and supplying the liquid to the third water storage tub.

[0017] The switch is used to control the on-off of the pipeline so that the liquid in the additive containing part can flow into one of the first secondary extraction mechanism, the second secondary extraction mechanism and the third secondary extraction mechanism.

[0018] In at least one possible embodiment, the clothes treating device further comprises at least one extended water tub, and the additive delivery structure further comprises at least one extended secondary extraction mechanism.

[0019] The additive containing part is connected to the extended secondary extraction mechanism via the switching part, and the extended secondary extraction mechanism is connected to the extended water storage tub.

[0020] The extended secondary extraction mechanism can extract the liquid in the additive storage portion and supply it to the extended water storage tub.

[0021] The switching part is used to control the on-off of the pipeline so that the liquid in the additive containing part can flow into one of the first secondary extraction mechanism, the second secondary extraction mechanism, the third secondary extraction mechanism and the extended secondary extraction mechanism.

[0022] In at least one possible embodiment, a position height of at least one of the first secondary extraction mechanism and the second secondary extraction mechanism in the laundry processing device is higher than a position height of the primary extraction mechanism in the laundry processing device.

[0023] In at least one possible embodiment, at least one of the first secondary extraction mechanism and the second secondary extraction mechanism comprises a venturi tube, wherein the venturi tube is connected to the water inlet valve and the water storage tub.

[0024] The venturi tube is formed with a negative pressure interface, and the negative pressure interface is connected to the additive containing part. When water flows through the venturi tube, negative pressure can be generated to extract the liquid in the additive containing part and supply it to the water tank.

[0025] In at least one possible embodiment, at least one of the first secondary extraction mechanism and the second secondary extraction mechanism includes a pump, and the pump connects the additive housing portion and the tub to supply the liquid in the additive housing portion to the tub.

[0026] In at least one possible implementation, the primary extraction mechanism includes a pump; and the additive containing portion is directly or indirectly connected to a first water inlet valve to allow water to flow into the additive containing portion.

[0027] In at least one possible implementation, the first water inlet valve is connected to the additive receiving part through a first water path of the receiving part and a second water path of the receiving part, respectively.

[0028] The first water path of the accommodating part passes through the additive injection part and the primary extraction mechanism; the second water path of the accommodating part does not pass through the additive injection part and the primary extraction mechanism.

[0029] In at least one possible embodiment, the additive delivery structure further includes an additive storage portion, wherein the additive storage portion is connected to the additive injection portion to supply the additive.

[0030] The additive storage portion is disposed below at least one water tub.

[0031] The additive storage portion forms a cavity to accommodate an additive storage box storing one or more additives, and an opening direction of the cavity is the same as an opening direction of at least one tub.

[0032] In at least one possible embodiment, the primary extraction mechanism is disposed below or at the lower portion of at least one water tub.

[0033] The first secondary extraction mechanism and the second secondary extraction mechanism are disposed above or on an upper portion of at least one water tub.

[0034] The present application also provides a working method of the aforementioned additive delivery structure, the working method comprising:

[0035] When the clothes processing device obtains a request for adding additives to a water tub, it determines whether there are other water tubs that are currently adding additives.

[0036] If there are other water buckets in the process of putting additives, wait for the ongoing putting operation to be completed before putting additives into this water bucket; if there are no other water buckets in the process of putting additives, directly put additives into this water bucket.

[0037] The present application also provides a clothes processing device, which includes: a first water tub, a second water tub and at least one vent, and the aforementioned additive delivery structure.

[0038] The vent communicates with the external atmosphere, the additive housing part is connected to the vent, and at least one of the first tub and the second tub is connected to the vent to balance air pressures in the additive housing part and the tub.

[0039] The additive delivery structure and its working method, and the clothing treatment device provided by the present application can avoid excessive pressure on a single extraction mechanism by setting a primary extraction mechanism and a secondary extraction mechanism, thereby increasing the service life of the extraction mechanism, and avoiding or alleviating water leakage caused by long-term high pressure on the extraction mechanism. The two extraction mechanisms are respectively used to extract additives and supply additives to the water tub, and can also ensure that the additive delivery structure has a high additive delivery accuracy. The additive delivery structure and its working method can be applied to a clothing treatment device including multiple water tubs, and can meet higher clothing treatment requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The present invention is a simplified piping diagram of an additive delivery structure according to one embodiment of the present application.

[0041] Figure 2 The present invention is a simplified logical diagram of the working method of the additive delivery structure according to one embodiment of the present application.

[0042] Description of Reference Numerals

[0043] 10 Additive injection unit

[0044] 11 Care agent injection section

[0045] 12 Detergent injection part

[0046] 13 Softener injection part

[0047] 20 First-level extraction agency

[0048] 30 Additive storage part

[0049] 40 Ventilation

[0050] 50 Switching unit

[0051] 61 First and Second Level Extraction Mechanism

[0052] 62 Secondary Extraction Mechanism

[0053] 63 Third and Second Level Extraction Agency

[0054] 71 First Water Bucket

[0055] 72 Second Water Bucket

[0056] 73 The third bucket

[0057] 80 Silver ion sterilization unit

[0058] FV1 First water inlet valve

[0059] FV2 Second water inlet valve

[0060] FV3 Third water inlet valve

[0061] FV4 Fourth water inlet valve

[0062] FV5 Fifth water inlet valve

[0063] L1: First water channel of the receiving part

[0064] L2: Second water channel of the receiving part DETAILED DESCRIPTION

[0065] The exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, and are not intended to exhaust all possible methods of the present application, nor to limit the scope of the present application.

[0066] The embodiment of the present application provides an additive delivery structure for delivering additives into a water tub of a laundry treatment device. Figure 1As shown, the laundry treatment device may include at least a first tub 71 and a second tub 72. The additive delivery structure may include an additive injection portion 10, a primary extraction mechanism 20, an additive receiving portion 30, a first secondary extraction mechanism 61, and a second secondary extraction mechanism 62. The additive injection portion 10 may be connected to the additive receiving portion 30 via the primary extraction mechanism 20, and the primary extraction mechanism 20 may extract the additive in the additive injection portion 10 and supply it to the additive receiving portion 30. The first secondary extraction mechanism 61 may be connected to the first tub 71, and the second secondary extraction mechanism 62 may be connected to the second tub 72. The first secondary extraction mechanism 61 may extract the liquid in the additive receiving portion 30 and supply it to the first tub 71. The second secondary extraction mechanism 62 may extract the liquid in the additive receiving portion 30 and supply it to the second tub 72.

[0067] It can be understood that by setting up a two-stage extraction mechanism, the pressure bearing of the extraction mechanism (especially the pressure bearing of the extraction mechanism used to extract liquid from a lower place to a higher place) can be reduced compared to using only a single-stage extraction mechanism. In addition, the service life of the extraction mechanism can be increased and the risk of water leakage in the extraction mechanism can be reduced. In this embodiment, the first-stage extraction mechanism only undertakes the operation of extracting additives without having to undertake the water supply operation. An extraction mechanism with higher precision and lower pressure bearing can be used, which can improve the accuracy of additive delivery. The second-stage extraction mechanism can use an extraction mechanism with stronger pressure bearing capacity and lower precision.

[0068] The additive delivery structure may further include a switching unit 50. The additive receiving unit 30 may be connected to the first secondary extraction mechanism 61 and the second secondary extraction mechanism 62 via the switching unit 50. The switching unit 50 may be used to control the on-off of the pipeline so that the liquid in the additive receiving unit 30 can flow into the first secondary extraction mechanism 61 or the second secondary extraction mechanism 62. The switching unit 50 may switch and change the connection state between the additive receiving unit 30 and each secondary extraction mechanism to supply additives to different water tanks.

[0069] The switching part 50 may include a switching valve, so that the switching part 50 enables the additive delivery structure to only form a passage between the additive receiving part 30 and the secondary extraction mechanism at the same time, so that the additive receiving part 30 is only connected to the first secondary extraction mechanism 61 or the second secondary extraction mechanism 62. Preferably, the switching part 50 can also be provided with a check valve according to the needs of the actual pipeline design to prevent or reduce water leakage or air leakage in a certain pipeline. The switching part 50 that can only form one passage at the same time can enable the additive receiving part 30 to only be connected to one secondary extraction mechanism at the same time, so that the liquid (diluted additive) in the additive receiving part 30 can all enter one water bucket without unexpectedly flowing into other water buckets, thereby achieving accurate delivery of additives.

[0070] Furthermore, the clothing treatment device may further include a third water tub 73, and the additive delivery structure may further include a third secondary extraction mechanism 63. The additive receiving portion 30 may be connected to the third secondary extraction mechanism 63 via the switching portion 50, and the third secondary extraction mechanism 63 may be connected to the third water tub 73. The third secondary extraction mechanism 63 may extract the liquid in the additive receiving portion 30 and supply it to the third water tub 73. The switching portion 50 is used to control the on-off of the pipeline so that the liquid in the additive receiving portion 30 can flow into one of the first secondary extraction mechanism 61, the second secondary extraction mechanism 62, and the third secondary extraction mechanism 63. This technical solution may further meet the additive delivery requirements when the clothing treatment device includes three water tubs, may adapt to more complex clothing treatment operations, and may achieve accurate delivery of additives into the three water tubs.

[0071] Optionally, the clothing processing device may further include at least one extended water tub, and the additive delivery structure may further include at least one extended secondary extraction mechanism. The additive holding portion 30 may be connected to the extended secondary extraction mechanism via the switching portion 50, and the extended secondary extraction mechanism may be connected to the extended water tub. The extended secondary extraction mechanism can extract the liquid in the additive holding portion 30 and supply it to the extended water tub. The switching portion 50 is used to control the on-off of the pipeline so that the liquid in the additive holding portion 30 can flow into one of the first secondary extraction mechanism 61, the second secondary extraction mechanism 62, the third secondary extraction mechanism and the extended secondary extraction mechanism. This technical solution can further meet the demand for additive delivery when more water tubs are needed, can adapt to more complex clothing processing operations, and realize the precise delivery of additives into more water tubs respectively.

[0072] Preferably, at least one of the secondary extraction mechanisms (including the first secondary extraction mechanism 61, the second secondary extraction mechanism 62 and the third secondary extraction mechanism 63, etc.) can be located at a higher height in the laundry processing device than the primary extraction mechanism 20. The secondary extraction mechanism is located at a higher height than the primary extraction mechanism, which helps to achieve water inflow from the top of the water tub. The primary extraction mechanism 20 can be arranged at a lower position together with the additive injection part 10 and the additive storage part to facilitate the extraction of additives.

[0073] More preferably, the primary extraction mechanism 20 can be arranged below or at the lower part of at least one tub, and the secondary extraction mechanism can be arranged above or at the upper part of at least one tub. In particular, the primary extraction mechanism can be arranged below the clothing inlet of the tub, and the secondary extraction mechanism can be arranged above the clothing inlet of the tub. This layout structure can inject the diluted additive into the tub from the upper part of the tub. Injecting the diluted additive into the tub from the upper part of the tub can improve clothing treatment, such as washing effect and user experience.

[0074] At least one of the secondary extraction mechanisms (including the first secondary extraction mechanism 61, the second secondary extraction mechanism 62, and the third secondary extraction mechanism 63, etc.) may include a venturi tube, and the venturi tube may be connected to the water inlet valve (for example, Figure 1 In the embodiment, the first and second extraction mechanisms 61 can be connected to the third water inlet valve FV3, the second and second extraction mechanisms 62 can be connected to the fourth water inlet valve FV4, and the third and second extraction mechanisms 63 can be connected to the fifth water inlet valve FV5) and the water bucket. The venturi tube can be formed with a negative pressure interface, and the negative pressure interface can be connected to the additive holding part 30. When the water flows through the venturi tube, negative pressure can be generated to extract the liquid in the additive holding part 30 and supply it to the water bucket. The use of the venturi tube can utilize the negative pressure generated when supplying water to the water bucket to extract the liquid (the diluent of the additive) in the additive holding part 30, which can reduce the manufacturing cost and energy consumption compared to the use of pump-type extraction mechanisms. The venturi tube works by utilizing the Venturi effect generated by its pipeline structure, and is less prone to failure than pump-type extraction devices, reducing the risk of water leakage.

[0075] Optionally, at least one of the secondary extraction mechanisms (including the first secondary extraction mechanism 61, the second secondary extraction mechanism 62, and the third secondary extraction mechanism 63, etc.) may include a pump, and the pump may be connected to the additive containing portion 30 and the water tub to supply the liquid in the additive containing portion 30 to the water tub. When at least two water tubs are stacked vertically, only some of the secondary extraction mechanisms may use a venturi tube (for example, the secondary extraction mechanism connected to the water tub located relatively at the lower part may include a venturi tube), and the remaining secondary extraction mechanisms may use a pump.

[0076] The primary extraction mechanism 20 may include a pump. The additive container 30 may be directly or indirectly connected to the first water inlet valve FV1 to allow water to flow into the additive container 30. The water flow may dilute and dissolve the additive in the additive container, allowing the additive to flow into the secondary extraction mechanism along with the water flow.

[0077] Preferably, the first water inlet valve FV1 can be connected to the additive holding part 30 through the first water path L1 of the holding part and the second water path L2 of the holding part, respectively. The first water path L1 of the holding part can pass through the additive injection part 10 and the primary extraction mechanism 20, that is, it is indirectly connected. The second water path L2 of the holding part can not pass through the additive injection part 10 and the primary extraction mechanism 20, that is, it is directly connected. The first water path L1 of the holding part can add water to the additive holding part 30 to dilute the additive, and can also flush the pipeline, the additive injection part 10 and the primary extraction mechanism 20 after the additive is added. The second water path L2 of the holding part can share the water flow when the water flow of the first water inlet valve FV1 is large, thereby improving the stability of the operation.

[0078] The additive delivery structure may further include an additive storage portion, which is connected to the additive injection portion to supply additives. The additive storage portion may be disposed below at least one water tub. The additive storage portion forms a cavity to accommodate an additive storage box storing one or more additives (e.g., detergent, softener, and care agent, etc.), and the opening direction of the cavity is the same as the opening direction of at least one water tub. The layout of the additive storage box is more in line with the user's usage habits, and it is convenient to replace the additive storage box.

[0079] The embodiments of the present application also provide a working method of an additive delivery structure (hereinafter, sometimes referred to as a "working method"), which is applicable to the aforementioned additive delivery structure. Figure 2 As shown, the working method includes: when the clothes processing device obtains an additive delivery request for a water tub, it determines whether there are other water tubs that are currently delivering additives. If there are other water tubs that are currently delivering additives, wait for the ongoing delivery operation to be completed before delivering additives to the current water tub; if there are no other water tubs that are currently delivering additives, directly deliver additives to the current water tub.

[0080] This working method can ensure that the water bucket that issues the additive delivery request first can complete the additive delivery first without being interrupted, and only one additive delivery operation is performed at the same time to ensure the accuracy of additive delivery.

[0081] It can be understood that when the additive delivery structure is provided with a switching valve 50, when one of the multiple water buckets is performing the additive delivery operation, the other water buckets can still perform the water intake operation through the secondary extraction mechanism. This method can minimize the waiting time of the multiple water buckets when they are operating.

[0082] The present application also provides a clothing treatment device, which may include a first water tub 71, a second water tub 72, and at least one vent 40 and the aforementioned additive delivery structure. The vent 40 may be connected to the external atmosphere, and the additive holding portion 30 may be connected to the vent 40. And at least one of the first water tub 71 and the second water tub 72 (and the third water tub 73) may be connected to the vent 40 to balance the air pressure in the additive holding portion 30 and the water tub. The air pressure balance between the water tub and the additive holding portion is achieved by connecting the same vent, and the vent structures of each component are integrated to save space and facilitate maintenance.

[0083] Alternatively, a plurality of tubs may be connected to the same vent 40 , or a plurality of vents may be provided and each tub may be connected to one vent 40 .

[0084] The vent 40 may be integrated with (at least one) secondary extraction mechanism, that is, the vent 40 and the secondary extraction mechanism may both be disposed above at least one water tub, so as to further save space and make the structure more compact.

[0085] It is understood that when water is poured into the additive containing part 30 to dilute the additive, foam may be formed in the additive containing part 30, and the foam may enter the vent part 40 along the ventilation duct. Therefore, the vent part 40 may be formed with an overflow cavity, and the overflow cavity may contain liquid and / or foam that enters the vent part 40 and the water tub from the additive containing part 30. The provision of the overflow cavity can prevent the liquid and / or foam overflowing from the ventilation duct of the additive containing part 30 from directly overflowing to the outside of the laundry treatment device.

[0086] The clothing treatment device may further include a silver ion sterilization unit 80, and silver ion sterilization water may be formed when water flows through the silver ion sterilization unit 80. The silver ion sterilization unit 80 may be connected to a water inlet valve (a second water inlet valve FV2) and at least one water tub to supply sterilization water to the water tub. Preferably, the silver ion sterilization unit 80 may also be connected to the water tub via the vent 40, so that the silver ion sterilization water flushes the vent 40 and then passes into the water tub 50, so as to flush the vent 40 (especially the overflow cavity of the vent) at the same time.

[0087] The following briefly describes some of the beneficial effects of the above-mentioned embodiments of the present application.

[0088] The additive delivery structure for a clothing treatment device and the clothing treatment device provided by the embodiment of the present application can avoid a single extraction mechanism from bearing too much pressure by setting a primary extraction mechanism and a secondary extraction mechanism, thereby increasing the service life of the extraction mechanism and avoiding or alleviating the phenomenon of leakage caused by the extraction mechanism bearing too much pressure for a long time. The two extraction mechanisms are respectively used to extract additives and supply additives to the water tub, and can also ensure that the additive delivery structure has a high additive delivery accuracy. Furthermore, the use of a venturi tube as the main structure of the secondary extraction mechanism can utilize the negative pressure generated when supplying water to the water tub to extract the liquid in the additive holding part, which can reduce manufacturing costs and energy consumption compared to the solution using a pump mechanism. In addition, the venturi tube works by utilizing the venturi effect generated by its pipeline structure, and is less prone to failure than a pump mechanism, which can effectively avoid or reduce the risk of leakage. The additive delivery structure can be provided with a switching portion 50 that can only form one passage, which can enable the additive holding portion 30 to be connected to only one secondary extraction mechanism at the same time, so that the liquid (diluted additive) in the additive holding portion 30 can all enter one water bucket without unexpectedly flowing into other water buckets, thereby achieving accurate delivery of the additive.

[0089] It is understood that in the present application, when the number of parts or components is not particularly limited, the number may be one or more, and the multiple here means two or more. For the case where the number of parts or components shown in the drawings and / or described in the specification is a specific number such as two, three, four, etc., the specific number is usually exemplary and not restrictive, and it can be understood as multiple, that is, two or more, but this does not mean that the present application excludes the case of one.

[0090] It should be understood that the above embodiments are merely exemplary and are not intended to limit the present application. Those skilled in the art may make various modifications and changes to the above embodiments under the guidance of the present application without departing from the scope of the present application.

Claims

1. An additive delivery structure, used for delivering additives into a water tub of a clothes treatment device, wherein the clothes treatment device comprises at least a first water tub (71) and a second water tub (72), characterized in that: The additive delivery structure comprises an additive injection portion (10), a primary extraction mechanism (20), an additive receiving portion (30), a first secondary extraction mechanism (61) and a second secondary extraction mechanism (62), The additive injection part (10) is connected to the additive storage part (30) via the primary extraction mechanism (20), and the primary extraction mechanism (20) can extract the additive in the additive injection part (10) and supply it to the additive storage part (30). The additive containing portion (30) is connected to the first secondary extraction mechanism (61) and the second secondary extraction mechanism (62), the first secondary extraction mechanism (61) is connected to the first water storage tub (71), and the second secondary extraction mechanism (62) is connected to the second water storage tub (72). The first secondary extraction mechanism (61) is capable of extracting liquid from the additive containing section (30) and supplying it to the first water storage tub (71); the second secondary extraction mechanism (62) is capable of extracting liquid from the additive containing section (30) and supplying it to the second water storage tub (72).

2. The additive delivery structure according to claim 1, characterized in that: It also includes a switching unit (50), The additive containing section (30) is connected to the first secondary extraction mechanism (61) and the second secondary extraction mechanism (62) via the switching section (50), and the switching section (50) is used to control the on-off of the pipeline so that the liquid in the additive containing section (30) can flow into the first secondary extraction mechanism (61) or the second secondary extraction mechanism (62).

3. The additive delivery structure according to claim 2, characterized in that: The switching unit (50) includes a switching valve, The switching section (50) enables the additive delivery structure to simultaneously form only one passage between the additive containing section (30) and the secondary extraction mechanism, so that the additive containing section (30) is only connected to the first secondary extraction mechanism (61) or the second secondary extraction mechanism (62).

4. The additive delivery structure according to claim 2, characterized in that: The clothes processing device further comprises a third water holding tub (73), and the additive delivery structure further comprises a third secondary extraction mechanism (63). The additive containing portion (30) is connected to the third secondary extraction mechanism (63) via the switching portion (50), and the third secondary extraction mechanism (63) is connected to the third water storage tub (73). The third secondary extraction mechanism (63) is capable of extracting the liquid in the additive storage portion (30) and supplying the liquid to the third water storage tub (73). The switching part (50) is used to control the on-off of the pipeline so that the liquid in the additive containing part (30) can flow into one of the first secondary extraction mechanism (61), the second secondary extraction mechanism (62) and the third secondary extraction mechanism (63).

5. The additive delivery structure according to claim 4, characterized in that: The clothes treating device further comprises at least one expanded water holding tub, and the additive delivery structure further comprises at least one expanded secondary extraction mechanism. The additive containing part (30) is connected to the expanded secondary extraction mechanism via the switching part (50), and the expanded secondary extraction mechanism is connected to the expanded water storage tub. The expanded secondary extraction mechanism can extract the liquid in the additive containing portion (30) and supply it to the expanded water storage tub. The switching part (50) is used to control the on-off of the pipeline so that the liquid in the additive containing part (30) can flow into one of the first secondary extraction mechanism (61), the second secondary extraction mechanism (62), the third secondary extraction mechanism and the extended secondary extraction mechanism.

6. The additive delivery structure according to claim 1, characterized in that: At least one of the first secondary extraction mechanism (61) and the second secondary extraction mechanism (62) is located at a higher height in the laundry processing device than the first secondary extraction mechanism (20) is located in the laundry processing device.

7. The additive delivery structure according to claim 1, characterized in that: At least one of the first secondary extraction mechanism (61) and the second secondary extraction mechanism (62) comprises a venturi tube, wherein the venturi tube is connected to the water inlet valve and the water storage tub. The venturi tube is formed with a negative pressure interface, and the negative pressure interface is connected to the additive containing part (30). When water flows through the venturi tube, negative pressure can be generated to extract the liquid in the additive containing part (30) and supply it to the water storage tub.

8. The additive delivery structure according to claim 1, characterized in that: At least one of the first secondary extraction mechanism (61) and the second secondary extraction mechanism (62) includes a pump, which connects the additive containing portion (30) and the tub to supply the liquid in the additive containing portion (30) to the tub.

9. The additive delivery structure according to claim 1, characterized in that: The primary extraction mechanism (20) comprises a pump; the additive containing portion (30) is directly or indirectly connected to a first water inlet valve (FV1) to allow water to flow into the additive containing portion (30).

10. The additive delivery structure according to claim 9, characterized in that: The first water inlet valve (FV1) is connected to the additive containing part (30) through a first water path (L1) and a second water path (L2) of the containing part, respectively. The first water path (L1) of the accommodating part passes through the additive injection part (10) and the primary extraction mechanism (20); and the second water path (L2) of the accommodating part does not pass through the additive injection part (10) and the primary extraction mechanism (20).

11. The additive delivery structure according to claim 1, characterized in that: The additive storage part is connected to the additive injection part to supply the additive. The additive storage portion is disposed below at least one water tub. The additive storage portion forms a cavity to accommodate an additive storage box storing one or more additives, and an opening direction of the cavity is the same as an opening direction of at least one tub.

12. The additive delivery structure according to claim 1, characterized in that: The primary extraction mechanism (20) is arranged below or at the lower part of at least one water storage tub. The first secondary extraction mechanism (61) and the second secondary extraction mechanism (62) are arranged above or on the upper part of at least one water tub.

13. A working method of an additive delivery structure, characterized in that: The additive delivery structure is the additive delivery structure according to any one of claims 1 to 12, The working method comprises: When the clothes processing device obtains a request for adding additives to a water tub, it determines whether there are other water tubs that are currently adding additives. If there are other water buckets in the process of putting additives, wait for the ongoing putting operation to be completed before putting additives into this water bucket; if there are no other water buckets in the process of putting additives, directly put additives into this water bucket.

14. A clothes processing device, characterized in that: include: A first water tub (71), a second water tub (72), and at least one vent (40); as well as The additive delivery structure according to any one of claims 1 to 12, The vent (40) is in communication with the external atmosphere, the additive containing portion (30) is connected to the vent (40), and at least one of the first water tub (71) and the second water tub (72) is connected to the vent (40) to balance the air pressure in the additive containing portion (30) and the water tub.

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