A liquid storage component, a dispensing device having the same, and a multi-barrel washing machine

Abstract

The present invention provides a liquid storage assembly, a dispensing device having the same, and a multi-barrel washing machine. The liquid storage assembly includes a liquid storage box body and a mounting box body. A liquid storage cavity for storing a laundry treatment agent is provided in the liquid storage box body; the mounting box body forms a mounting cavity for mounting the liquid storage box body, and the mounting cavity is provided with an opening through which the liquid storage box body can be pushed into or ejected from the mounting cavity; the liquid storage box body is movably arranged in the mounting cavity, and the liquid storage box body can be ejected from the mounting cavity or locked in the mounting cavity by pressing the front end face of the liquid storage box body or a button on the front end face; the dispensing device includes a liquid pumping pump, a liquid mixing box and the above-mentioned liquid storage assembly. The liquid pumping pump is arranged behind the mounting box body and is connected to the liquid storage box body on one hand and the liquid mixing box on the other hand, and is used for pumping out the laundry treatment agent in the liquid storage box body and feeding it into the liquid mixing box for mixing with the supplied water; the multi-barrel washing machine is provided with a plurality of laundry treatment barrels, and the above-mentioned dispensing device or the above-mentioned liquid storage assembly is provided in the laundry treatment barrel at the uppermost position.

Description

Technical Field

[0001] The present invention relates to the field of laundry equipment, and particularly to a liquid storage component, a dosing device having the same, and a multi-barrel washing machine. Background Art

[0002] With the development of science and technology, the intelligent dosing technology of washing machines is increasingly applied to the working process of washing machines. The intelligent dosing technology can accurately add the dosage of laundry treatment agent according to the amount of clothes, which can largely avoid the inaccurate dosing of laundry treatment agent caused by manual dosing; on the other hand, the intelligent dosing technology of laundry treatment agent can put in a relatively large capacity of laundry treatment agent at one time, and one dosing can be used for a long time, greatly saving the time cost of dosing laundry treatment agent every time when doing laundry.

[0003] In some existing laundry treatment devices, the laundry treatment agent cartridge is not detachable. After long-term use, gel-like laundry treatment agent will accumulate inside the laundry treatment agent cartridge, or when replacing laundry treatment agents of different brands, unpredictable chemical reactions may occur, resulting in strange smells inside the cartridge. The non-detachable laundry treatment agent cartridge cannot be cleaned, greatly reducing the user experience of the product. Summary of the Invention

[0004] Therefore, the present invention provides a liquid storage component, a dosing device having the same, and a multi-barrel washing machine to solve the problem that the laundry treatment agent cartridge of the dosing system in the prior art is not detachable.

[0005] To achieve the above object, the present invention provides a liquid storage component, including:

[0006] A liquid storage cartridge, in which a liquid storage cavity for storing laundry treatment agent is provided.

[0007] An installation box body, which forms an installation cavity for installing the liquid storage cartridge, and an opening through which the liquid storage cartridge can be pushed into or ejected from the installation cavity is provided in the installation cavity.

[0008] The liquid storage cartridge is movably arranged in the installation cavity, and the liquid storage cartridge can be ejected from the installation cavity or locked in the installation cavity by pressing the front end face of the liquid storage cartridge or a button on the front end face.

[0009] Further optionally, the liquid storage cartridge is detachably and push-ejectably arranged in the installation cavity.

[0010] Further optionally, the liquid storage assembly includes a moving pressing and limiting assembly, which is arranged along the moving direction of the liquid storage box body being pushed into or popped out of the installation cavity, and is formed between the top wall and / or the bottom wall and / or the side walls where the liquid storage box body cooperates with the installation box body.

[0011] Further optionally, the moving pressing and limiting assembly has a pressing wheel assembly, which is arranged between the top wall of the installation box body and the top wall of the liquid storage box body. The pressing wheel assembly is arranged on the top wall of the installation box body and includes a mounting seat, a compression spring, a pressing wheel bracket and a pressing wheel; the mounting seat is arranged on the top wall of the installation box body, and its structure is a hollow shell structure. An installation space is formed inside the hollow shell structure, and the compression spring, the pressing wheel bracket and the pressing wheel are arranged in sequence from top to bottom; the compression spring provides elastic force to the pressing wheel bracket, the pressing wheel is rotatably arranged on the pressing wheel bracket, the pressing wheel can extend into the installation cavity of the installation box body and abut against the liquid storage box body, and provides pressure to the liquid storage box body.

[0012] Further optionally, the mounting seat is a barrel-shaped structure with one end open and one end closed. A first limiting groove or a first limiting hole is axially formed on the side wall of the barrel-shaped structure along the axial direction of the barrel-shaped structure; a limiting claw is arranged at the top of the pressing wheel bracket, and the limiting claw is slidably engaged into the first limiting groove or the first limiting hole, so that the pressing wheel bracket can slide along the axial direction of the mounting seat; an installation through hole is arranged on the installation box body, the mounting seat is fixed to the installation box body, the pressing wheel passes through the installation through hole and extends into the installation cavity, and the rotation axis of the pressing wheel is perpendicular to the installation direction of the liquid storage box body; when the liquid storage box body makes a pushing or popping movement in the installation cavity of the installation box body, the pressing wheel abuts against the liquid storage box body under the action of the compression spring, so that the liquid storage box body moves smoothly.

[0013] Further optionally, a plurality of the pressing wheel assemblies are provided, and the plurality of pressing wheel assemblies are distributed along the moving direction of the liquid storage box body, and the plurality of pressing wheel assemblies and / or are distributed on opposite sides of the liquid storage box body.

[0014] Further optionally, the moving pressing and limiting assembly includes a second limiting groove, which is arranged above the liquid storage box body; when the liquid storage box body pops out from the installation box body and moves forward, and the second limiting groove is exactly below the pressing wheel, the pressing wheel is embedded into the second limiting groove under the action of the compression spring, preventing the liquid storage box body from continuing to make a popping movement, so that the popping travel of the liquid storage box body is controlled.

[0015] Further optionally, the liquid storage assembly further includes a guiding and positioning assembly, which is arranged between the rear wall of the liquid storage box body and the rear wall of the installation box body along the moving direction of pushing or popping the liquid storage box body into or out of the installation cavity. The guiding and positioning assembly includes a positioning post and a positioning hole. When the liquid storage box body is pushed into the installation box body, the positioning post and the positioning hole cooperate to form axial positioning of the installation box body and the liquid storage box body.

[0016] Further optionally, the positioning hole is a cylindrical hole and is arranged on the rear wall of the liquid storage box body in the vertical direction; correspondingly, the positioning post is a positioning post and is arranged on the rear wall of the installation box body in the vertical direction; when the liquid storage box body is pushed into the installation box body, the positioning hole gradually completes cooperation with the positioning post along the axis.

[0017] Further optionally, a movement guiding assembly is further arranged between the top wall and / or the bottom wall of the installation box body and the liquid storage box body. The movement guiding assembly includes a guiding groove and a guiding wheel assembly. The guiding wheel assembly includes a guiding wheel bracket and a guiding wheel. The guiding groove is arranged along the moving direction of the liquid storage box body in the length direction of the top wall and / or the bottom wall of the liquid storage box body; the guiding wheel bracket is correspondingly arranged on the top wall and / or the bottom wall of the installation box body; the guiding wheels are arranged on the guiding wheel bracket in a linear pattern and are used for cooperating with the guiding groove; when the liquid storage box body is pushed into or popped out of the installation box body, under the cooperation of the guiding groove and the guiding wheels, it plays a guiding role in the pushing or popping movement of the liquid storage box body relative to the installation box body.

[0018] Further optionally, the length dimension of the guiding groove corresponds to the length dimension of the liquid storage box body; the cross section of the guiding groove is U-shaped.

[0019] Further optionally, the liquid storage assembly further includes a locking assembly, which is arranged at the front ends of the liquid storage box body and the installation box body; the locking assembly includes a locking buckle and a locking groove; the locking buckle is arranged at the front end of the liquid storage box body, the locking groove is arranged at the front end of the installation box body, and their positions correspond; when the liquid storage box body is pushed into the installation box body, the locking buckle and the locking groove cooperate to lock the liquid storage box body in the installation cavity.

[0020] Further optionally, the locking buckle is an elastic element. When the liquid storage box body is pushed into the installation box body, the locking buckle is embedded into the locking groove to complete locking; when the liquid storage box body pops out of the installation box body, under the action of an external force, the locking buckle deforms inward and disengages from the locking groove, and the liquid storage box body pops out.

[0021] Further optionally, the liquid storage component also includes a pop-up component, which includes a release button, a rebound top piece, a spring and a spring movement track; the release button is arranged on the front wall of the liquid storage box body; the rebound top piece is arranged on the rear wall of the liquid storage box body; the spring movement track is arranged on the rear wall of the installation box body and protrudes toward the rear side, and the spring is arranged inside the spring movement track and cooperates with the rebound top piece; when the release button is pressed, the locking buckle is separated from the locking slot, and the liquid storage box body is released, and when the release button is released, the compressed spring returns to its original shape to release energy and acts on the rebound top piece, and the liquid storage box body automatically pops up; when the liquid storage box body is pushed into the installation box body, the spring is compressed along the spring movement track under the action of the rebound top piece until the locking buckle cooperates with the locking slot to complete the locking, and the liquid storage box body is locked in the installation cavity.

[0022] Further optionally, the liquid storage component also includes another locking component, which includes a lock and a lock locking position, and the lock is arranged on the rear wall of the installation box body or the rear wall of the liquid storage box body; the lock locking position corresponds to the position of the lock, and is arranged on the rear wall of the liquid storage box body or the rear wall of the installation box body; the lock cooperates with the lock locking position.

[0023] Further optionally, the lock buckle is a lock buckle with a wedge-shaped buckle, and the lock buckle locking position has a recessed hole that cooperates with the lock buckle.

[0024] Further optionally, when the user presses the front end of the liquid storage box body to push the liquid storage box body into the installation box body, the buckle of the lock is embedded in the recessed hole of the lock buckle locking position, so that the liquid storage box body is locked in the installation box body; when the user continues to press the front end of the liquid storage box body to push the liquid storage box body into the installation box body, the buckle of the lock buckle moves inward and disengages from the recessed hole of the lock buckle locking position, and under the action of the spring of the pop-up assembly, the rebound top piece pops the liquid storage box body out of the installation cavity.

[0025] Further optionally, the liquid storage component also includes a position detection component, which has a position sensor, which is arranged on the installation box, and a magnet used in conjunction with the position sensor is arranged on the liquid storage box body; the position sensor and the magnet are used in conjunction to detect whether the liquid storage box body is installed in place.

[0026] Further optionally, at least one liquid storage cavity is separated along the length direction of the liquid storage box body, and the liquid storage box body is provided with at least one liquid injection port and at least one liquid outlet of the liquid storage box body; wherein the liquid injection port is used to add laundry treatment agent to the liquid storage cavity, and the liquid outlet of the liquid storage box body is used to make the laundry treatment agent in the liquid storage cavity flow out of the liquid storage cavity.

[0027] Further optionally, the liquid injection port is arranged on the left side wall or the right side wall of the liquid storage box body; the liquid outlet of the liquid storage box body is arranged at the lower part of the rear wall of the liquid storage box body.

[0028] Further optionally, the bottom edge of the liquid storage cavity forms a certain inclination angle towards the liquid outlet of the liquid storage box body, and the width of the side section of the liquid injection port is greater than the width of the side section of the liquid outlet of the liquid storage box body.

[0029] Further optionally, the liquid storage cavity is also provided with a one-way ventilation valve for communicating the outside and the liquid storage cavity to maintain the constant pressure of the liquid storage cavity.

[0030] Further optionally, the liquid outlet of the liquid storage box body is connected to the liquid suction port of the liquid suction pump in a pluggable manner.

[0031] Further optionally, the liquid storage assembly further includes a liquid injection port sealing assembly; the liquid injection port sealing assembly has a screw cap and a liquid injection port sealing ring, and the screw cap cooperates with the liquid injection port, and the liquid injection port is sealed by relying on the liquid injection port sealing ring.

[0032] The present invention also provides a dosing device having the liquid storage assembly described in any one of the above, and the dosing device further includes a liquid suction pump and a mixing box. The liquid suction pump is arranged behind the installation box body, and on the one hand, it is connected to the liquid storage cavity of the liquid storage box body, and on the other hand, it is connected to the mixing box, and is used to pump out the laundry treatment agent in the liquid storage box body and send it into the mixing box to be mixed with the feed water; the mixing box is connected to the liquid suction pump on the one hand and to the washing machine water inlet pipe on the other hand to send the diluted laundry treatment agent to the washing tub.

[0033] Further optionally, the liquid suction pump has at least one liquid suction pump cavity, at least one liquid suction port and at least one liquid outlet.

[0034] Further optionally, the liquid suction pump has a liquid suction pump liquid level probe sealing ring for sealing the liquid suction pump liquid level probe mounting port.

[0035] Further optionally, the mixing box has a cavity, and the mixing box is provided with a water inlet, at least one liquid inlet and at least one liquid outlet communicating with the cavity; the water inlet of the mixing box is connected to the water inlet pipe of the washing machine, the liquid outlet of the mixing box is connected to the washing tub of the washing machine, and the liquid inlet of the mixing box is connected to the liquid outlet of the liquid suction pump in a pluggable manner.

[0036] Further optionally, the liquid mixing box forms a cavity by a rear cover and a front cover. The rear cover is provided with a liquid inlet and a liquid outlet. The liquid mixing box is provided with a through hole for the liquid suction port of the liquid suction pump to pass through. The liquid mixing box is arranged below the rear cover of the installation box body and is integrally connected to the rear cover of the installation box body.

[0037] Further optionally, the liquid outlet of the liquid storage box body and the liquid suction port of the liquid suction pump form a plug-in liquid sealing connection structure. The plug-in liquid sealing connection structure has a tubular valve body, a side sealing ring, a needle valve sealing ring, a needle valve, a needle valve spring, and a needle valve plug. The liquid suction port of the liquid suction pump, the tubular valve body, the side sealing ring, the needle valve sealing ring, the needle valve, the needle valve spring, and the needle valve plug are coaxially arranged in sequence with the liquid outlet of the liquid storage box body. The side sealing ring is used for sealing between the tubular valve body and the inner wall of the liquid outlet of the liquid storage box body. The needle valve spring provides elastic force for the needle valve, so that the needle valve sealing ring is sealed by contacting the tubular valve body. The liquid suction pump is provided with an inlet sealing ring for sealing between the outer wall of the liquid suction port of the liquid suction pump and the inner wall of the liquid outlet of the liquid storage box body when the liquid storage box body is pushed into the installation box body.

[0038] Further optionally, the dosing device further includes a liquid level detection component. The liquid level detection component has a liquid level probe and a separated conduction structure for detecting the liquid level in the liquid storage cavity. The liquid level probe includes a liquid storage box body liquid level probe and a liquid suction pump liquid level probe, which are respectively used for detecting the liquid levels of the laundry treatment agent in the liquid storage cavity and in the liquid suction pump cavity.

[0039] Further optionally, the separated conduction structure is provided with a contact metal sheet and a contact elastic sheet. The contact metal sheet is arranged on the rear cover of the liquid storage box body, and one end of it is electrically connected to the liquid storage box body liquid level probe. The contact elastic sheet is arranged on the rear cover of the installation box body, one end of it is electrically connected to the main controller of the washing machine, and the other end contacts the contact metal sheet. One end of the liquid suction pump liquid level probe is connected to the main controller of the washing machine. The liquid storage box body liquid level probe is arranged at the bottom of the liquid storage cavity and has a small size in the liquid storage cavity. The liquid suction pump liquid level probe is arranged in the liquid suction pump cavity and has a small size in the liquid suction pump cavity. In this way, the main controller of the washing machine, the separated conduction structure, the liquid storage box liquid level probe, and the liquid suction pump liquid level probe form an electrical circuit. When the liquid level value in the liquid storage cavity is high, the liquid storage box body liquid level probe contacts the laundry treatment agent, the electrical circuit is conducted, and the main controller of the washing machine does not send a liquid level value signal. When the liquid level value in the liquid storage cavity is low, the liquid storage box body liquid level probe does not contact the laundry treatment agent, the electrical circuit is disconnected, and the main controller of the washing machine sends a low liquid level value signal.

[0040] The present invention also provides a multi-barrel washing machine, which is provided with a plurality of laundry treatment barrels from top to bottom. The above-mentioned dosing device or the above-mentioned liquid storage assembly is provided on one side of the laundry treatment barrel at the uppermost position, and the laundry treatment agent is fed from top to bottom into the laundry treatment barrel that needs to be provided with the laundry treatment agent.

[0041] Further optionally, the multi-barrel washing machine further includes an integrated waterway structure, which is arranged between the dosing device and the washing barrel of the multi-barrel washing machine for optimizing the waterway of the multi-barrel washing machine.

[0042] The integrated waterway structure includes:

[0043] A flow channel structure having at least two flow channels for delivering water and laundry treatment agent to the washing barrel;

[0044] A selection structure having at least one liquid inlet and at least one liquid outlet for controlling the flow rate of the laundry treatment agent entering the washing barrel;

[0045] A four-way structure having one liquid inlet and at least one liquid outlet for splitting the discharged liquid from the mixing liquid box;

[0046] An exhaust structure arranged at the flow channel structure for balancing the air pressure inside and outside the flow channel.

[0047] Further optionally, if the integrated waterway structure is a box structure, then the integrated waterway structure is a water box. The water box has a box body and a box upper cover. The box body forms a plurality of parallel main flow channels on the side that cooperates with the box cover, and the box cover forms auxiliary flow channels that cooperate with the main flow channels on the side that cooperates with the box body; the main flow channels and the auxiliary flow channels constitute the flow channel structure.

[0048] Further optionally, the flow channel structure has an inlet connected to the water inlet pipe of the multi-barrel washing machine or the liquid outlet pipe of the mixing liquid box; the flow channel structure has an outlet connected to the water inlet pipe of the washing barrel of the multi-barrel washing machine.

[0049] Further optionally, the number of liquid outlets of the four-way structure is the same as the number of liquid inlets of the selection structure. The liquid inlet of the four-way structure is connected to the liquid outlet of the mixing liquid box, and the liquid outlet of the four-way structure is connected to the liquid inlet of the selection structure to realize the splitting of the discharged liquid from the mixing liquid box and input the laundry treatment agent to the selection structure.

[0050] Further optionally, at least one drain valve is provided on the outlet side of the gating structure, and the number of the drain valves is the same as the number of the liquid outlet ports of the gating structure; the liquid inlet port of the gating structure is connected to the liquid outlet port of the four-way structure, and the liquid outlet port of the gating structure, the drain valve and the water inlet pipe of the washing tub of the multi-tub washing machine are sequentially connected to control the amount of washing agent entering the washing tub of the multi-tub washing machine.

[0051] Further optionally, the integrated waterway structure has at least one water inlet valve, and the number of the water inlet valves is the same as the number of the flow channels of the flow channel structure; the water inlet valve is arranged in the washing machine water inlet pipeline and is connected to the flow channel inlet or the water inlet of the liquid mixing box to control the amount of water entering the washing tub or the liquid mixing box of the multi-tub washing machine.

[0052] Further optionally, the box body has a drain valve fixing member for fixing the drain valve.

[0053] The present invention has the following advantages: the dosing device of the present invention uses a separable liquid storage box body, which is detachable and easy to clean, enhancing the user experience; the movement and positioning accuracy of the liquid storage box body are improved by using a movement guiding component, a positioning component, a locking component and a pop-up component; the sealing of the liquid storage box body is ensured by using a sealing ring and a plug-in liquid sealing connection structure; the liquid level detection accuracy is improved by using a separated conduction structure and short-size detection of the liquid level probe, and the influence of bubbles on the probe is reduced. Description of the Drawings

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0055] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in this specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope that can be covered by the technical content disclosed in the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved.

[0056] Figure 1 Schematic structural diagram of an embodiment of the washing machine main body and the dosing device provided by the present invention;

[0057] Figure 2a Schematic structural diagram of an embodiment of the liquid mixing box provided by the present invention;

[0058] Figure 2b The water circuit schematic diagram of the multi-barrel washing machine provided by the present invention;

[0059] Figure 3 The structural schematic diagram of the liquid extraction pump embodiment provided by the present invention;

[0060] Figure 4a The external structural schematic diagram of the liquid storage box body embodiment provided by the present invention;

[0061] Figure 4b The internal structural schematic diagram of the liquid storage box body embodiment provided by the present invention;

[0062] Figure 4c The structural schematic diagram of the one-way ventilation valve embodiment provided by the present invention;

[0063] Figure 5a The exploded structural schematic diagram of the installation box body embodiment provided by the present invention

[0064] Figure 5b The overall structural schematic diagram of the installation box body embodiment provided by the present invention;

[0065] Figure 6a The structural schematic diagram of the movement guiding component embodiment of the liquid storage box body provided by the present invention;

[0066] Figure 6b The structural schematic diagram of the movement pressing and limiting component and positioning component embodiments of the liquid storage box body provided by the present invention;

[0067] Figure 6c The structural schematic diagram of the pressing wheel component embodiment of the liquid storage box body provided by the present invention;

[0068] Figure 6d The exploded structural schematic diagram of the pressing wheel component embodiment of the liquid storage box body provided by the present invention;

[0069] Figure 7a The structural schematic diagram of the locking component embodiment of the liquid storage box body provided by the present invention;

[0070] Figure 7b The structural schematic diagram of the pop-up component and position detection component embodiments of the liquid storage box body provided by the present invention;

[0071] Figure 7c and 7d The structural schematic diagram of another embodiment of the locking component of the liquid storage box body provided by the present invention;

[0072] Figure 8a 、 8b and 8c are the structural schematic diagrams of the sealing component provided by the present invention;

[0073] Figure 9a and9b Schematic structural diagram of the liquid level detection component provided by the present invention;

[0074] Figure 9c Schematic circuit diagram of the liquid level detection component provided by the present invention;

[0075] Figure 10a Schematic structural diagram of the integrated waterway structure provided by the present invention;

[0076] Figure 10b Schematic structural diagram of the main body embodiment of the integrated waterway structure box provided by the present invention;

[0077] In the figure:

[0078] 1 - Washing machine main body frame;

[0079] 2 - Liquid mixing box; 20 - Front cover of the liquid mixing box; 201 - First positioning post; 202 - Second positioning post; 21 - Rear cover of the liquid mixing box; 211 - First liquid inlet of the liquid mixing box; 212 - Second liquid inlet of the liquid mixing box; 213 - Liquid outlet of the liquid mixing box; 214 - Water inlet of the liquid mixing box; 221 - First through hole; 222 - Second through hole;

[0080] 3 - Liquid pumping pump; 30 - Pump head; 311 - First chamber of the liquid pumping pump; 312 - Second chamber of the liquid pumping pump; 321 - First liquid outlet of the liquid pumping pump; 322 - Second liquid outlet of the liquid pumping pump; 331 - First liquid suction port of the liquid pumping pump; 332 - Second liquid suction port of the liquid pumping pump;

[0081] 4 - Liquid storage box body; 401 - First liquid injection port; 402 - Second liquid injection port; 411 - First one - way ventilation valve; 412 - Second one - way ventilation valve; 42 - Handle; 43 - Front cover of the liquid storage box body; 44 - Rear cover of the liquid storage box body; 451 - First liquid storage chamber; 452 - Second liquid storage chamber; 461 First liquid outlet of the liquid storage box body; 462 Second liquid outlet of the liquid storage box body;

[0082] 5 - Installation box body; 50 - Front cover of the installation box body; 501 - Main body of the front cover of the installation box body; 502 - Front decorative cover of the installation box body; 51 - Left shell of the installation box body; 52 - Right shell of the installation box body; 53 - Rear cover of the installation box body; 531 - Upper body of the rear cover of the installation box body; 532 - Lower body of the rear cover of the installation box body;

[0083] 61 - Movement guiding component; 611 - Guiding groove; 612 - Guiding wheel bracket; 613 - Guiding wheel; 62 - Movement limiting groove; 63 - Guiding wheel assembly; 631 - Base; 632 - Compression spring; 633 - Pressing wheel bracket; 634 - Pressing wheel; 64 - Positioning component; 641 - First positioning hole; 642 - Second positioning hole;

[0084] 71 - Locking assembly; 711 - First locking buckle; 712 - Second locking buckle; 713 - First locking groove; 714 - Second locking groove; 72 - Release button; 73 - Ejecting assembly; 731 - Rebound ejector rod; 732 - Rebound spring; 733 - Spring track; 74 - Position detection assembly; 741 - Magnet; 742 - Hall sensor; 751 - Lock; 752 - Lock locking position;

[0085] 8 - Sealing assembly; 81 - Liquid filling port sealing assembly; 811 - First annular sealing ring for liquid filling port; 812 - Second annular sealing ring for liquid filling port; 813 - First screw cap for liquid filling port; 814 - Second screw cap for liquid filling port; 82 - Liquid level probe sealing assembly for liquid storage box; 821 - First liquid level probe sealing ring for liquid storage box body; 822 - Second liquid level probe sealing ring for liquid storage box body; 83 - Plug-in liquid sealing connection structure; 831 - First tubular valve body; 832 - Second tubular valve body; 833 - First side sealing ring; 834 - Second side sealing ring; 835 - First needle valve sealing ring; 836 - Second needle valve sealing ring; 837 - First needle valve spring; 838 - Second needle valve spring; 839 - First needle valve; 8310 - Second needle valve; 8311 - First needle valve plug; 8312 - Second needle valve plug; 841 - First sealing ring for liquid suction pipe of liquid suction pump; 842 - Second sealing ring for liquid suction pipe of liquid suction pump; 851 - First liquid level probe sealing ring for liquid suction pump; 852 - Second liquid level probe sealing ring for liquid suction pump;

[0086] 9 - Liquid level detection assembly; 911 - First contact metal sheet; 912 - Second contact metal sheet; 921 - First contact elastic sheet; 922 - Second contact elastic sheet; 931 - First liquid level probe for liquid storage box body; 932 - Second liquid level probe for liquid storage box body; 941 - First liquid level probe for liquid suction pump; 942 - Second liquid level probe for liquid suction pump;

[0087] 101 - First washing bucket; 1011 - First washing bucket liquid inlet pipe; 1012 - First washing bucket liquid inlet adapter; 1013 - First washing bucket liquid inlet hose;

[0088] 102 - Second washing bucket; 1021 - Second washing bucket liquid inlet hose;

[0089] 103 - Third washing bucket; 1031 - Third washing bucket liquid inlet hose; 1032 - Third washing bucket liquid inlet pipe;

[0090] 104 - Mixed liquid box water inlet pipe; 105 - Mixed liquid box liquid outlet pipe;

[0091] 11 - Water inlet valve;

[0092] 12 - Strobe structure; 121 - First washing tub liquid inlet pipeline valve; 122 - Second washing tub liquid inlet pipeline valve; 123 - Third washing tub liquid inlet pipeline valve;

[0093] 13 - Integrated waterway structure;

[0094] 1311 - First flow channel outlet; 1312 - Second flow channel outlet; 1313 - Third flow channel outlet;

[0095] 1321 - First flow channel inlet; 1322 - Second flow channel inlet; 1323 - Third flow channel inlet;

[0096] 133 - Four - way structure; 1330 - Four - way structure liquid inlet; 1331 - Four - way structure first liquid outlet; 1332 - Four - way structure second liquid outlet; 1333 - Four - way structure third liquid outlet;

[0097] 134 - Strobe structure bracket;

[0098] 135 - Exhaust structure; 1351 - First flow channel exhaust valve; 1352 - Second flow channel exhaust valve; 1353 - Third flow channel exhaust valve; 1354 - Fourth flow channel exhaust valve;

[0099] 1363 - Fourth flow channel inlet; 1373 - Fourth flow channel outlet. Detailed implementation mode

[0100] The following specific embodiments illustrate the implementation mode of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0101] Embodiment 1 Feeding device

[0102]

Overall layout

[0103] The feeding device of the present invention is a processing agent feeding device installed on a washing device. The specific washing device can be a washing device such as a dishwasher or a washing machine. The processing agent can be a clothing processing agent or other processing agents, and the present invention does not limit its type.

[0104] Such as Figure 1As shown in the figure, in this embodiment, the dosing device is preferably arranged on a multi-barrel washing machine, which is provided with a plurality of laundry treatment barrels from top to bottom. Specifically, the uses of the plurality of laundry treatment barrels can be a combination of barrels with different laundry treatment functions such as washing, dewatering, drying, disinfection, etc., but preferably at least have a washing function. In addition, the washing method can be a combination of washing barrels with different washing methods such as drum type, agitator type, spray type, etc. In this embodiment, three washing barrels are provided at the upper, middle, and lower positions. The upper barrel is a drum type washing barrel, the middle barrel is a drawer type agitator washing barrel, and the lower barrel is a drum type washing barrel. Of course, for the dosing device proposed by the present invention, the specific function types and washing types of the multi-barrel laundry treatment are not limited. However, a more preferable effect is highlighted in the field of multi-barrel washing machines with a relatively small installation space for the dosing device.

[0105] Furthermore, as Figure 1 shown, the multi-barrel washing machine proposed in this embodiment is provided with a main body frame 1, and the main body frame 1 forms an accommodation space for arranging a plurality of laundry treatment barrels from top to bottom. The dosing device is arranged at the upper position of the multi-barrel washing machine and close to the water inlet pipeline. Preferably, it is located at the left or right position of the topmost washing barrel, and conveys the laundry treatment agent to the plurality of laundry treatment barrels from top to bottom. Of course, when the overall height of the washing machine is not too high, it can also be arranged horizontally along the washing machine at the upper position of the topmost laundry treatment barrel.

[0106] Specifically, from the overall composition, the dosing device includes a liquid extraction pump 3, a liquid mixing box 2, a liquid storage box body 4, and an installation box body 5. Among them, the installation box body 5 is arranged on the main body frame 1 of the washing machine and behind the front cover of the washing machine door, preferably close to the water inlet pipe. The installation box body 5, as a component cooperatively arranged with the liquid storage box body 4, forms a cavity with an open front end; the liquid storage box body 4 is inserted into the cavity from the front end of the installation box body 5 through the opening of the installation box body 5 and is cooperatively engaged with the installation box body 5 in a push-and-spring, movable manner. Preferably, the movable manner is that the liquid storage box body 4 is detachably arranged in the installation box body 5.

[0107] The liquid mixing box 2 and the liquid extraction pump 3 are arranged at the rear side of the installation box body 5. Among them, the liquid extraction port of the liquid extraction pump is connected to the liquid outlet of the liquid storage box body, the liquid outlet of the liquid extraction pump is connected to the liquid inlet of the liquid mixing box, and the liquid outlet of the liquid mixing box is communicated with the branch water inlet pipes of each laundry treatment barrel. Thus, the laundry treatment agent is mixed and diluted with the washing machine water inlet and then conveyed to the water supply flow paths of each laundry treatment barrel, so as to avoid waste of the laundry treatment agent caused by the high viscosity of the laundry treatment agent and inability to fully flow into the laundry treatment barrel. The following further details the further optimization and specific implementation of the above structural composition.

[0108]

Liquid storage box body

[0109] The dosing device includes a liquid storage box body 4, which is used for adding and storing laundry treatment agents. The storage cavity formed inside the liquid storage box body 4 can be divided into multiple independent liquid storage cavities according to actual needs, so as to conveniently add various laundry treatment agents, such as detergents, fabric softeners, disinfectants, etc. The volume of each liquid storage cavity can also be determined according to the specific laundry treatment agent required. In this embodiment, the liquid storage box body 4 is divided into two liquid storage cavities to store laundry treatment agents and fabric softeners respectively.

[0110] As Figure 4a and 4b shown, to save the installation space of the dosing device, the liquid storage box body 4 is preferably of a flat and long structure and is vertically arranged in the left or right position of the top laundry treatment bucket of the multi-barrel washing machine in the front-back direction of the washing machine in a detachable insertion manner. On the one hand, it is beneficial to solve the problem of insufficient installation space for the dosing device of the multi-barrel washing machine. On the other hand, it can convey the laundry treatment agent to the laundry treatment bucket of the washing machine in a top-down manner, avoiding the problem of easy liquid accumulation in the conveying pipeline in the bottom-up manner. At the same time, it makes full use of the atmospheric pressure and the gravity of the laundry treatment agent itself, reduces the dosing difficulty, and reduces the technical requirements for the liquid extraction pump 3.

[0111] Preferably, the liquid storage box body 4 has a front cover 43 and a rear cover 44 of the liquid storage box body. For the convenience of description, we set the cover on the front end side of the liquid storage box body 4 facing the washing machine as the front cover, the end face as the front end face, the cover on the rear end side facing the washing machine as the rear cover, the end face as the rear end face, and the two side faces connected between the front and rear end faces are called the left and right side faces, and the two side walls are the left and right side walls. The so-called left and right are consistent with the left and right side directions of the washing machine as seen by the user from the front side of the washing machine.

[0112] The installation box body 5 is fixed on the main body frame 1 of the washing machine; the liquid storage box body 4 is detachably arranged in the installation box body 5. The washing machine includes a front door cover. Preferably, the front cover 43 of the liquid storage box body is arranged on the front door cover and is flush with the front door cover. When the liquid storage box body 4 needs to be opened, the liquid storage box body 4 can be ejected from the installation box body 5 by pressing the front cover 43 of the liquid storage box body from the front door cover side, giving the user a good user experience.

[0113] Preferably, the liquid storage box body 4 includes at least one installation cavity for accommodating laundry treatment agents; corresponding to each installation cavity, there is a liquid injection port, which is preferably arranged on the side of the liquid storage box body 4; each liquid injection port is matched with a cover body equipped with a sealing rubber ring. The cover body can be fixed on the liquid storage box body 4 through a hinge part, and by rotating the cover body around the fixed part, the opening and closing of the liquid injection port can be realized; the cover body can also be a screwing cap structure in which the cover body is completely separated from the liquid injection port when the liquid injection port is opened.

[0114] In this embodiment, the installation cavity inside the liquid storage box body 4 is divided into 2 liquid storage cavities, which are respectively used for adding fabric softener and detergent. As Figure 4aand 4b As shown, the internal installation cavity of the liquid storage box body is separated into a first liquid storage cavity 451 and a second liquid storage cavity 452 along the length direction of the box body. Corresponding to these two liquid storage cavities, the liquid storage box body 4 is provided with a first liquid injection port 401, a second liquid injection port 402, a first liquid storage box body liquid outlet 461, and a second liquid storage box body liquid outlet 462. Among them, the first liquid injection port 401 is used to add laundry treatment agent to the first liquid storage cavity 451, the first liquid storage box body liquid outlet 461 is used to make the laundry treatment agent in the first liquid storage cavity 451 flow out of the first liquid storage cavity 451, the second liquid injection port 402 is used to add laundry treatment agent to the second liquid storage cavity 452, and the second liquid storage box body liquid outlet 462 is used to make the laundry treatment agent in the second liquid storage cavity 452 flow out of the second liquid storage cavity 452. Preferably, the first liquid injection port 401 and the second liquid injection port 402 are arranged on the left side wall or the right side wall of the liquid storage box body 4, and preferably both are arranged at the upper position on the same side, so as to facilitate operation and accommodate more laundry treatment agent. Further preferably, the first liquid storage box body liquid outlet 461 and the second liquid storage box body liquid outlet 462 are also arranged on the same side, and are at the lower part of the rear cover 44 of the liquid storage box body. Thus, it is beneficial for the laundry treatment agent in the two sub-liquid storage cavities of the liquid storage box body 4 to be fully and conveniently pumped into the mixing box 2 by the liquid pumping pump 3 at the rear side thereof. Particularly more beneficial is that it is beneficial for the liquid outlet of the liquid storage box body 4 and the liquid pumping port of the liquid pumping pump to achieve liquid connection in a plug-in manner. Further optimized, the bottom edges of the two liquid storage cavities form a certain inclination angle towards their respective liquid outlets, and the cross-sectional width of the inlet side of each liquid storage cavity is greater than that of the outlet side to facilitate the flow of the laundry treatment agent to the liquid outlet of the liquid storage box body, for cooperation with the liquid pumping port of the liquid pumping pump and output of the laundry treatment agent.

[0115] Further, in this embodiment, a one-way ventilation structure for allowing external gas to enter the liquid storage cavity unidirectionally is preferably provided on the liquid storage box body 4. When adding the laundry treatment agent into the liquid storage box body 4, the one-way ventilation structure restricts the liquid from flowing from the inside to the outside. When the liquid in the liquid storage box body 4 decreases, the one-way ventilation structure allows external air to enter the liquid storage box body 4. Preferably, a first one-way ventilation valve 411 is provided corresponding to the first liquid storage cavity 451, and a second one-way ventilation valve 412 is provided corresponding to the second liquid storage cavity 452; that is, the first one-way ventilation valve 411 corresponds to the first liquid injection port 401, the first liquid storage cavity 451, and the first liquid storage box body liquid outlet 461; the second one-way ventilation valve 412 corresponds to the second liquid injection port 402, the second liquid storage cavity 452, and the second liquid storage box body liquid outlet 462. The working principle of the one-way ventilation valve is as follows: taking the first one-way ventilation valve 411 as an example, when adding the laundry treatment agent into the first liquid storage cavity 451, the first one-way ventilation valve 411 allows external air to enter the first liquid storage cavity 451 and prevents the laundry treatment agent inside the first liquid storage cavity 451 from flowing out; when the laundry treatment agent inside the first liquid storage cavity 451 decreases, the internal pressure is less than the external atmospheric pressure. Under the action of the atmospheric pressure, the first one-way ventilation valve 411 opens, and external air enters the first liquid storage cavity 451, and the internal and external pressures of the first liquid storage cavity 451 are kept consistent.

[0116] As Figure 4c shown, specifically, taking the first one-way ventilation valve 411 as an example, the one-way ventilation valve can be an integrally formed structure made of an elastic material. An assembly hole 413 for the one-way ventilation valve is provided on the liquid storage box body 4. The one-way ventilation valve has a ventilation hole 414. The top end of the one-way ventilation valve is placed in the installation cavity of the liquid storage box body 4, and the top end completely covers the ventilation hole. The tail end of the one-way ventilation valve is placed outside the liquid storage box body 4. When the cover body is opened and the laundry treatment agent is put into the liquid storage cavity through the liquid injection port, the one-way ventilation valve seals the assembly hole 413 and the ventilation hole 414, thereby restricting the leakage of the laundry treatment agent; when the liquid extraction pump 3 extracts the laundry treatment agent from the liquid storage box body 4, a negative pressure is formed inside the liquid storage box body 4, and the top end of the one-way ventilation valve deforms, so that the ventilation hole is exposed or partially exposed, realizing the entry of the atmosphere from the outside into the liquid storage box body 4. Preferably, the thickness of the one-way ventilation valve gradually decreases from the center to the edge at the top end, making it easier for air to enter.

[0117] Further preferably, the liquid storage box body 4 is also provided with a handle 42 on both side walls in the thickness direction of the liquid storage box body 4. The handle 42 can be a through hole for facilitating the removal of the liquid storage box body 4.

[0118] As Figure 8aAs shown, the liquid storage box body 4 is also provided with a liquid injection port sealing assembly 81 at each liquid injection port, which includes a first annular sealing ring 811 for the liquid injection port, a first screwing cap 813 for the liquid injection port, a second annular sealing ring 812 for the liquid injection port, and a second screwing cap 814 for the liquid injection port. The first annular sealing ring 811 corresponds to the first screwing cap 813 for the liquid injection port and cooperates with the first liquid injection port 401 to seal the first liquid injection port 401; the second annular sealing ring 812 corresponds to the second screwing cap 814 for the liquid injection port and cooperates with the second liquid injection port 402 to seal the second liquid injection port 402.

[0119]

Installation Box Body

[0120] As Figure 5a and 5b shown, the dispensing device further includes an installation box body 5, and the installation box body 5 forms an installation box body cavity with a front end opening for setting the liquid storage box body 4. Preferably, it includes an installation box body front cover 50, an installation box body left shell 51, an installation box body right shell 52, and an installation box body rear cover 53, and constitutes an installation box body cavity for installing the liquid storage box body 4; the installation box body front cover 50 includes an installation box body front cover main body 501 and an installation box body front decorative cover 502; the installation box body rear cover 53 includes an installation box body rear cover upper body 531 and an installation box body lower body 532; the front end opening opened on the installation box body front cover main body 501 is a rectangular hole adapted to the flat and long rectangular cross-sectional shape of the liquid storage box body 4, which is convenient for the pushing and popping out of the liquid storage box body 4.

[0121] Preferably, a bracket is provided on the installation box body 5, and the liquid extraction pump 3 is installed on the bracket.

[0122] <Motion Control Component: Motion Guide Component + Motion Compression and Limit Component + Ejection / Locking Component + Positioning Component + Detection Component>

[0123] Preferably, in order to facilitate the detachable, pushable and ejectable setting of the liquid storage box body 4 in the installation box body 5 and achieve precise limiting and positioning, a motion control component is provided between the installation box body 5 and the liquid storage box body 4, including a motion guide component, a motion compression and limit component, an ejection / locking component, and a positioning component.

[0124] <Motion Guide Component>

[0125] The motion guide component can be arranged between the upper position and / or the lower position between the installation box body 5 and the liquid storage box body 4. On the position opposite to the guide component, a motion compression and limit component is provided on the upper position or the lower position of the installation box body 5 for stopping the ejection of the liquid storage box body 4 and controlling the ejection stroke of the liquid storage box body 4.

[0126] To make the liquid storage box body 4 move smoothly and reduce noise when making an ejection or pushing-in motion relative to the installation box body 5, as Figure 6aAs shown in the figure, the preferred movement guiding component of this embodiment includes a guiding groove 611 and a guiding wheel assembly. The guiding wheel assembly includes a guiding wheel bracket 613 and guiding wheels 612. The guiding groove 611 is arranged below the liquid storage box body 4 (such as the bottom wall of the liquid storage box body 4) and is preferably arranged to cover the entire length direction of its lower end surface. The guiding wheel bracket 613 is arranged below the installation box body 5 (such as the bottom wall of the installation box body 5). There are multiple guiding wheels 612, which are arranged on the guiding wheel bracket 613 according to a linear rule. The guiding groove 611 cooperates with the guiding wheels 612. When the liquid storage box body 4 is pushed into or out of the installation box body 5, the liquid storage box body 4 makes a pushing or popping movement relative to the installation box body 5 under the cooperation of the guiding groove 611 and the guiding wheels 612.

[0127] <Movement pressing and limiting component>

[0128] To make the movement of the liquid storage box body 4 relative to the installation box body 5 smooth during the extraction or pushing movement and to accurately control the ejection stroke of the liquid storage box body 4, and to avoid the situation where the ejection distance is too large when the liquid storage box body 4 pops out and the liquid storage box body 4 directly detaches from the installation box body 5, this embodiment further preferably adds a movement pressing and limiting component. As Figure 6b 、 6c As shown in 6d, the movement pressing and limiting component provided in this embodiment has a pressing wheel assembly 63, which includes a mounting seat 631, a compression spring 632, a pressing wheel bracket 633, and a pressing wheel 634; the mounting seat 631 is arranged above the installation box body 5, and its structure is a hollow shell structure, forming an installation space inside. The compression spring 632, the pressing wheel bracket 633, and the pressing wheel 634 are arranged in sequence from top to bottom; the compression spring 632 provides a biasing force to the pressing wheel bracket 633. The pressing wheel 634 is rotatably arranged on the pressing wheel bracket 633. The pressing wheel 634 can extend into the installation cavity of the installation box body 5 and abut against the liquid storage box body 4 to provide pressure to the liquid storage box body 4.

[0129] Further optionally, the mounting seat 631 is a barrel-shaped structure with one end open and one end closed, and a first limiting groove 6311 or a first limiting hole is axially formed on its side wall; a limiting claw 6331 is provided at the top of the pressing wheel bracket 633, and the limiting claw 6331 is slidably engaged into the first limiting groove 6311 or the first limiting hole, so that the pressing wheel bracket 633 can slide along the axis of the mounting seat 631. An installation through hole is provided on the installation box body 5, and the mounting seat 631 is fixed to the installation box body 5. The pressing wheel 634 passes through the installation through hole and extends into the installation cavity. The rotation axis of the pressing wheel 634 is perpendicular to the installation direction of the liquid storage box body 4. When the liquid storage box body 4 makes a popping or pushing movement in the installation cavity of the installation box body 5, the pressing wheel 634 abuts against the liquid storage box body 4 under the action of the compression spring, and at the same time, the pressing wheel 634 rotates as the liquid storage box body 4 moves, so that the liquid storage box body 4 moves smoothly along a fixed track, avoiding abnormal noises during the whole process.

[0130] Further optionally, the moving pressing and limiting component further includes a second limiting groove 62, which is preferably a semi-circular structure and is arranged above the liquid storage box body 4. When the liquid storage box body 4 pops out from the installation box body 5 and moves forward, and the second limiting groove 62 is exactly below the pressing wheel 634, the pressing wheel 634 is embedded into the second limiting groove 62 under the action of the compression spring 632, preventing the liquid storage box body 4 from continuing to pop out, controlling the popping stroke of the liquid storage box body 4, and improving the user experience.

[0131] <Guiding and positioning component>

[0132] When the liquid storage box body 4 is pushed in, the liquid pumping port of the liquid pumping pump and the liquid outlet of the liquid storage box body need to be quickly connected and accurately positioned. If the positioning accuracy is not high, the liquid pumping port of the liquid pumping pump and the liquid outlet of the liquid storage box body cannot be connected, and the sealing will not be tight. As Figure 6b shown, in this embodiment, a guiding and positioning component is preferably arranged between the rear wall of the liquid storage box body 4 and the rear wall of the installation box body 5. The guiding and positioning component is arranged along the moving direction of the liquid storage box body 4 being pushed into or popped out of the installation cavity of the installation box body 5 and is arranged between the rear wall of the liquid storage box body 4 and the rear wall of the installation box body 5; preferably, the guiding and positioning component includes a positioning post and a positioning hole. When the liquid storage box body 4 is pushed into the installation box body 5, the positioning post and the positioning hole cooperate to form an axial positioning of the installation box body 5 and the liquid storage box body 4. On the one hand, the positioning hole and the positioning post are highly matched to complete the positioning, and on the other hand, the liquid pumping port of the liquid pumping pump and the liquid outlet of the liquid storage box body can be quickly and accurately inserted and connected. Specifically, as Figure 6b shown, the positioning post is arranged behind the installation box body 5; the positioning hole is arranged behind the liquid storage box body 4 and matches the position and quantity of the positioning post. When the liquid storage box body 4 is locked to the installation box body 5, it is used to prevent the liquid storage box body 4 from shaking up and down, left and right, ensuring the positioning accuracy; specifically, the positioning component includes a first positioning post 201, a second positioning post 202, a first positioning hole 641 and a second positioning hole 642; the positioning hole is arranged on the rear cover 44 of the liquid storage box body; the positioning post is arranged on the rear cover 53 of the installation box body. The first positioning post 201 corresponds to the first positioning hole 641; the second positioning post 202 corresponds to the second positioning hole 642. When the liquid storage box body 4 is pushed into the installation box body 5, the two positioning holes cooperate with their corresponding positioning posts to ensure the accurate positioning of the liquid storage box body 4 inside the installation box body 5.

[0133] Further preferably, a Hall sensor 742 is also arranged on the installation box body 5, and a magnet 741 cooperating with the Hall sensor 742 is arranged on the liquid storage box body 4. The Hall sensor 742 and the magnet 741 cooperate to detect whether the liquid storage box body 4 is installed in place.

[0134] <Locking / popping component>

[0135] To achieve the ejection or locking of the liquid storage box body 4, this embodiment further provides a locking / ejection assembly. By using this locking / ejection assembly, the user can release and eject the installation box body 5 by pressing the front cover 43 of the liquid storage box body or the button on the front cover.

[0136] <Locking / Ejection Assembly - Embodiment 1>

[0137] As Figure 7a 、 7b 、shown in 7c and 7d, preferably, the locking / ejection assembly includes a locking assembly and an ejection assembly.

[0138] As Figure 7a shown, the locking assembly 71 of this embodiment is arranged at the front ends of the liquid storage box body 4 and the installation box body 4; the locking assembly 71 includes a first locking buckle 711, a second locking buckle 712, a first locking slot 713 and a second locking slot 714; the locking buckles are arranged at the front end of the liquid storage box body 4, preferably, one at the upper and lower positions respectively; the locking slots are arranged at the front end of the installation box body 5, preferably, one at the upper and lower positions respectively. Among them, the first locking buckle 711 corresponds to the first locking slot 713; the second locking buckle 712 corresponds to the second locking slot 714; when the liquid storage box body 4 is pushed into the installation box body 5, the locking buckles cooperate with the locking slots, and the liquid storage box body 4 is locked inside the installation box body 5. In this embodiment, the locking buckles are elastic elements, preferably located at the upper and lower positions at the front end of the liquid storage box body 4; the locking slots are located at the upper and lower positions at the front end of the installation box body 5; when the liquid storage box body 4 is pushed into the installation box body 5, the locking buckles are embedded into the locking slots to complete the locking; when the liquid storage box body 4 ejects from the installation box body 5, press the release button 72, the locking buckles deform inward and disengage from the locking slots, and the liquid storage box body 4 ejects.

[0139] As Figure 7a shown, the ejection assembly 73 includes a release button 72, a return ejector 731, a spring 732 and a spring track 733; the release button 72 is arranged on the front cover 43 of the liquid storage box body, such as the middle part of the front cover 43 of the liquid storage box body; the return ejector 731 is arranged on the rear cover 44 of the liquid storage box body, such as the middle part of the rear cover 44 of the liquid storage box body; the spring track 733 is arranged on the rear cover 53 of the installation box body and protrudes towards the rear side, and the spring 732 is arranged inside the spring track 733 and cooperates with the return ejector 731.

[0140] The principle of the ejection assembly is as follows: Press the release button 72 to separate the locking buckles from the locking slots, and the liquid storage box body 4 is released. Release the release button 72, the compressed spring 732 returns to its original shape to release energy, and acts on the return ejector 731, and the liquid storage box body 4 is ejected. When the liquid storage box body 4 is pushed into the installation box body, it is necessary to manually push the liquid storage box body 4 inward, the locking buckles cooperate with the locking slots to complete the locking, and then release.

[0141] <Locking / Ejection Assembly - Embodiment 2>

[0142] As Figure 7c and 7d shown, the preferred locking / ejecting component includes a mechanical latch and a resilient component, wherein:

[0143] Using the mechanical latch, the user can lock or release the liquid storage cartridge body 4 to / from the installation box body 5 by pressing the front cover 43 of the liquid storage cartridge body once. Preferably, the mechanical latch includes: a latch 751 and a latch locking position 752. The latch 751 is provided on the rear cover 53 of the installation box body or the rear cover 44 of the liquid storage cartridge body; the latch locking position 752 corresponds to the position of the latch 751 and is provided on the rear cover 44 of the liquid storage cartridge body or the rear cover 53 of the installation box body; the latch 751 can be a latch with a wedge-shaped buckle, and there is a concave hole on the latch locking position 752 that cooperates with the latch 751.

[0144] The ejecting component includes a release button 72, a resilient ejecting member 731, a spring 732, and a spring track 733; the release button 72 is provided on the front cover 43 of the liquid storage cartridge body, such as in the middle of the front cover 43 of the liquid storage cartridge body; the resilient ejecting member 731 is provided on the rear cover 44 of the liquid storage cartridge body, such as in the middle of the rear cover 44 of the liquid storage cartridge body; the spring track 733 is provided on the rear cover 53 of the installation box body and protrudes rearward, and the spring 732 is provided inside the spring track 733 and cooperates with the resilient ejecting member 731.

[0145] When the user presses the liquid storage cartridge body 4, the buckle of the latch 751 moves inward and disengages from the concave hole. Under the action of the resilient spring 732, the resilient ejecting member 731 uses its first end that abuts against the rear cover 44 of the liquid storage cartridge body to eject the liquid storage cartridge body 4.

[0146]

Mixing liquid cartridge body

[0147] The dispensing device is further provided with a mixing liquid cartridge body for mixing the laundry treatment agent in the liquid storage cartridge body with the incoming water first and then sending it to the laundry treatment tub that needs to add the laundry treatment agent.

[0148] As Figure 2a , 6bAs shown in the figure, the liquid mixing box 2 is arranged on the rear cover of the installation box body, and a cavity for mixing the laundry treatment agent and water inlet is formed inside it. Preferably, the liquid mixing box 2 includes a rear cover 21 and a front cover 20. The front cover 20 is installed on the rear cover of the installation box body, and the rear cover 21 and the front cover 20 cooperate to form a cavity. The rear cover 21 of the liquid mixing box is provided with a water inlet 214, a first liquid inlet 211 of the liquid mixing box, a second liquid inlet 212 of the liquid mixing box, and a liquid discharge port 213; the water inlet 214 of the liquid mixing box is communicated with the washing machine water inlet pipe, and a water inlet control valve is arranged on the water inlet pipeline. For example, a water inlet solenoid valve with on-off control is adopted, and the water inlet solenoid valve is electrically connected to the main controller of the washing machine. By controlling the water inlet solenoid valve, the water inflow into the liquid mixing box 2 can be controlled; the liquid inlets 211 and 212 of the liquid mixing box are plugged and connected with the liquid outlet of the liquid pumping pump, which is used to input the laundry treatment agent inside the liquid storage cavity into the liquid mixing box; the liquid outlet 213 of the liquid mixing box is communicated with three washing barrels of the washing machine, and a control valve is arranged in each communication pipeline. For example, a water inlet solenoid valve with on-off control can be adopted, and these solenoid valves are electrically connected to the main controller of the washing machine. By controlling the water inlet solenoid valve, the dosage of the laundry treatment agent input into each washing barrel can be controlled. The liquid mixing box 2 is provided with a first through hole 221 and a second through hole 222 for the liquid pumping pump liquid suction port to pass through, which is convenient for the plugging connection between the liquid suction port of the liquid pumping pump and the liquid outlet of the liquid storage box body, and at the same time reduces the occupied space of the feeding device.

[0149] The liquid mixing box 2 is communicated with the liquid pumping pump 3 and the washing machine water inlet pipe to mix the laundry treatment agent and transport the mixed liquid to the washing barrels of the washing machine. The liquid discharge port 213 of the liquid mixing box is communicated with the branch water inlet pipes of each washing barrel. In this way, the liquid pumping pump is used to extract the laundry treatment agent in the liquid storage cavity and send it into the mixing cavity of the liquid mixing box. In the mixing cavity, the water from the main water inlet pipe is mixed with the laundry treatment agent, and the laundry treatment agent is diluted and then transported to the water supply flow paths of each washing cylinder through the branch water inlet pipes and enters each washing barrel of the washing machine.

[0150] As Figure 2b shown in the figure, the working principle of the liquid mixing box 2 is as follows: the main controller of the washing machine controls the operation of the liquid pumping pump; the liquid pumping pump transports the laundry treatment agent inside the liquid storage cavity to the liquid mixing box 2; at the same time, the main controller of the washing machine controls the water inlet solenoid valve to open, and water enters the liquid mixing box 2 from the water inlet pipe and is mixed with the laundry treatment agent pumped into the liquid mixing box 2; the laundry treatment agent is diluted, and the diluted laundry treatment agent flows out from the liquid outlet of the liquid mixing box and enters each washing barrel of the washing machine.

[0151]

Liquid pumping pump

[0152] As Figure 3 shown in the figure, the liquid pumping pump 3 is arranged at the rear of the installation box body 5. On the one hand, it is connected to the liquid storage cavity of the liquid storage box body 4, and on the other hand, it is connected to the liquid mixing box 2, which is used to extract the laundry treatment agent in the liquid storage box body 4 for mixing. Preferably, a bracket is arranged on the installation box body 5, and the liquid pumping pump 3 is installed on the bracket.

[0153] The liquid extraction pump 3 includes a pump head 30 and a front pump body cover connected to the pump head 30. A liquid extraction pump installation cavity communicating with the liquid storage box body 4 is formed inside the front pump body cover. At least one liquid extraction pump liquid extraction port is provided on the liquid extraction pump installation cavity, which is connected to the liquid outlet provided on the liquid storage box body 4; at least one liquid extraction pump liquid outlet is provided on the liquid extraction pump installation cavity, which is connected to the laundry treatment tub. This connection can be through a liquid infusion pipe or through connecting to the liquid mixing box 2 first and then connecting to the laundry treatment tub; adapting to the design of the two liquid storage cavities of the liquid storage box body 4, the liquid extraction pump installation cavity includes a first liquid extraction pump cavity 311 and a second liquid extraction pump cavity 312, which correspond to the two liquid storage cavities of the liquid storage box body one by one. The first liquid extraction pump cavity 311 is provided with a first liquid extraction pump liquid extraction port 331 and a first liquid extraction pump liquid outlet 321, and the second liquid extraction pump cavity 312 is provided with a second liquid extraction pump liquid extraction port 332 and a second liquid extraction pump liquid outlet 322. Among them, the first liquid extraction pump cavity 311, the first liquid extraction pump liquid outlet 321, and the first liquid extraction pump liquid extraction port 331 are correspondingly communicated with the first liquid storage cavity 451 of the liquid storage box body 4; the second liquid extraction pump cavity 312, the second liquid extraction pump liquid outlet 322, and the second liquid extraction pump liquid extraction port 332 are correspondingly communicated with the second liquid storage cavity 452 of the liquid storage box body 4. The liquid extraction pump liquid extraction port is connected to the liquid outlet of the liquid storage box body for extracting the laundry treatment agent inside the liquid storage cavity; the liquid extraction pump liquid outlet is connected to the liquid mixing box 2 for inputting the laundry treatment agent into the liquid mixing box 2.

[0154]

Plug-in liquid sealing connection structure between the liquid extraction pump and the liquid storage box body

[0155] Preferably, adapting to the push-in and pop-out structure of the liquid storage box body 4, a plug-and-play structure is adopted between the liquid extraction pump liquid extraction port and the liquid outlet of the liquid storage box body. Preferably, the plug-and-play structure forms a plug-in liquid sealing connection structure. As Figure 8a and 8b shown, the plug-in liquid sealing connection structure 83, on the one hand, is used to block the liquid outlet of the liquid storage box body when the liquid storage box body 4 pops out of the installation box body 5, and on the other hand, is used for the seal between the liquid outlet of the liquid storage box body and the pipe wall of the liquid extraction pump liquid extraction port when the liquid storage box body 4 is pushed into the installation box body 5 to prevent the leakage of the laundry treatment agent.

[0156] Preferably, the liquid outlet of the liquid storage box body is a non-closed tube structure, forming a tubular valve body. Corresponding to the tubular valve body, the plug-in liquid sealing connection structure includes a needle valve structure coaxially arranged with the tubular valve body, which includes a needle valve, a needle valve plug, and a needle valve spring. Further preferably, a side sealing ring, a needle valve sealing ring, and a pump inlet pipe sealing ring are also provided. Among them, the needle valve cooperates with the tubular valve body to achieve sealing; the needle valve spring is sleeved on the front end of the needle valve and is used to provide a spring-back pressure to seal the liquid storage cavity when the liquid storage box body 4 pops out of the installation box body 5; the needle valve plug is arranged at the front end of the needle valve, and the needle valve spring is pressed between the needle valve plug and the needle valve. The needle valve sealing ring is sleeved on the middle part of the needle valve to achieve sealing between the needle valve and the valve body, preventing liquid leakage when the liquid storage box body 4 pops out of the installation box body 5; the side sealing ring is arranged between the tubular valve body and the liquid outlet of the liquid storage box body for sealing between the tubular valve body and the liquid outlet of the liquid storage box body. The liquid extraction pump sealing ring is arranged on the outer peripheral surface of the liquid extraction pump pipe to achieve sealing between the inner wall of the tubular valve body and the outer wall of the liquid extraction pump pipe when the liquid storage box body 4 is pushed into the installation box body 5, preventing liquid leakage.

[0157] Corresponding to the number of liquid storage cavities inside the liquid storage box body 4, the present invention provides a corresponding number of plug-in sealing connection structures. Taking two liquid storage cavities as an example, two groups of plug-in liquid sealing connection structures are provided in this embodiment.

[0158] The first plug-in liquid sealing connection structure includes a first tubular valve body 831, a first side sealing ring 833, a first needle valve sealing ring 835, a first needle valve spring 837, a first needle valve 839, a second needle valve 8310, a first needle valve plug 8311, and a first liquid extraction pump pipe sealing ring 841. The second plug-in liquid sealing connection structure includes a second tubular valve body 832, a second side sealing ring 834, a second needle valve sealing ring 836, a second needle valve spring 838, a second needle valve 8310, a second needle valve plug 8312, and a second liquid extraction pump pipe sealing ring 842. Among them, the first tubular valve body 831, the first side sealing ring 833, the first needle valve sealing ring 835, the first needle valve spring 837, the first needle valve 839, the first needle valve plug 8311, and the first liquid outlet 461 of the liquid storage box body are coaxially arranged in sequence; the second tubular valve body 832, the second side sealing ring 834, the second needle valve sealing ring 836, the second needle valve spring 838, the second needle valve 8310, the second needle valve plug 8312, and the second liquid outlet 462 of the liquid storage box body are coaxially arranged in sequence.

[0159] It should be noted that the two sets of plug-in liquid seal connection structures are preferably the same. Taking the first set as an example, one end of the first tubular valve body 831 has a larger inner diameter and the other end has a smaller inner diameter, and a conical sealing surface is formed at the transition between the large and small inner diameter sections. The outer diameter of the first needle valve 839 near the liquid storage cavity is small, and the outer diameter near the liquid extraction pump is large, and there is an annular boss structure. The first needle valve 839 is arranged inside the first tubular valve body 831. The first needle valve sealing ring 835 is sleeved between the boss structure of the first needle valve 839 and the conical sealing surface of the first tubular valve body 831; the first needle valve spring 837 is sleeved on the end with a smaller outer diameter of the first needle valve 839, and the two ends are respectively connected to the first needle valve 839 and the first needle valve plug 8311. The first tubular valve body 831 and the first needle valve plug 8311 are detachably connected. Specifically, a plurality of card slots are arranged on the outer peripheral surface of one end of the first tubular valve body 831, and a plurality of tongues are arranged on the first needle valve plug 8311 near the first tubular valve body 831. During installation, the tongues cooperate with the card slots to achieve detachable connection, which is convenient for later maintenance. The first tubular valve body 831 and the inner wall of the liquid outlet 461 of the first liquid storage box body are sealed by the first side sealing ring 833.

[0160] Correspondingly, the inner diameter of the tube body at the liquid outlet of the liquid storage box body has a structure that is wider at the front and narrower at the back. There is a transition bevel between the small inner diameter surface and the large inner diameter surface. An assembly hole is provided on the front end surface of the tube body, and a buckle cooperating with the assembly hole is provided on the needle valve plug.

[0161] The principle of the plug-in liquid seal connection structure is as follows: Taking the first set as an example, when the liquid storage box body 4 is pushed into the installation box body 5 and locked, the first liquid extraction port 341 of the liquid extraction pump is inserted into the liquid outlet 461 of the first liquid storage box body and abuts against the rear end of the first needle valve 839. The first liquid extraction port 331 of the liquid extraction pump pushes the first needle valve 839 closer to the first needle valve plug 8311. The first needle valve spring 837 is compressed, and the first needle valve sealing ring 835 moves away from the conical sealing surface of the first tubular valve body 831 due to the lack of extrusion of the needle valve. The first needle valve 839 opens, and the first liquid storage cavity 451 is communicated with the first cavity 311 of the liquid extraction pump. The laundry treatment agent inside the first liquid storage cavity 451 enters the first cavity 311 of the liquid extraction pump; at the same time, the outer wall of the first liquid extraction port 331 of the liquid extraction pump squeezes the sealing ring 841 of the first liquid extraction port of the liquid extraction pump tube, so that it is sealed with the inner wall of the liquid outlet 461 of the first liquid storage box body, and the first liquid storage cavity 451, the first cavity 311 of the liquid extraction pump and the outside are sealed.

[0162] When the liquid storage box body 4 pops out from the installation box body 5, the first liquid extraction port 331 of the liquid extraction pump withdraws from the liquid outlet 461 of the first liquid storage box body. The first needle valve spring 837 resets and pushes the first needle valve 839 away from the first needle valve plug 8311 and closer to the first needle valve sealing ring 835. Under the extrusion action, the first needle valve sealing ring 835 fits against the conical sealing surface of the first tubular valve body 831, and the liquid outlet 461 of the first liquid storage box body is closed.

[0163] It should be noted that in this embodiment, the number of the liquid mixing box liquid inlet and the liquid outlet of the liquid extraction pump is two, but the number of the liquid mixing box liquid inlet and the liquid outlet of the liquid extraction pump is not limited thereto, and is specifically determined according to the number of the liquid storage cavities of the liquid storage box body, and the number of the liquid storage cavities is consistent with the number of the liquid extraction ports of the liquid extraction pump, the liquid outlet of the liquid extraction pump, and the liquid mixing box liquid inlet.

[0164]

Liquid Storage Box Liquid Level Detection Circuit

[0165] <Liquid Level Detection Sensor Sealing Assembly>

[0166] The dispensing device further includes a liquid level detection sensor sealing assembly, specifically a liquid level probe sealing assembly, including a liquid storage box liquid level probe sealing ring and a liquid extraction pump liquid level probe sealing ring, which are respectively used for sealing the liquid level probe mounting openings of the liquid storage box body liquid level probe and the liquid extraction pump liquid level probe.

[0167] As Figure 8a shown, the liquid storage box body 4 is provided with a liquid level probe sealing assembly for sealing the liquid level probe mounting holes.

[0168] The liquid storage box body liquid level probe sealing assembly 82 includes a plurality of liquid level probe sealing rings. The present invention sets the corresponding number of liquid level probe sealing rings corresponding to the number of the liquid storage box body liquid level probes. Taking two liquid storage box body liquid level probes as an example, this embodiment sets two liquid level probe sealing rings, and the structures of the two are the same.

[0169] The first liquid level probe sealing ring 821 of the liquid storage box body corresponds to the first liquid level probe 931 of the liquid storage box body, and seals the mounting opening of the first liquid level probe 931 of the liquid storage box body; the second liquid level probe sealing ring 822 of the liquid storage box body corresponds to the second liquid level probe 932 of the liquid storage box body, and seals the mounting opening of the second liquid level probe 932 of the liquid storage box body.

[0170] As Figure 8c shown, the liquid extraction pump 3 is provided with a liquid level probe sealing assembly for sealing the liquid extraction pump liquid level probe mounting holes.

[0171] The liquid extraction pump liquid level probe sealing assembly includes a plurality of liquid extraction pump liquid level probe sealing rings. The present invention sets the corresponding number of liquid extraction pump liquid level probe sealing rings corresponding to the number of the liquid extraction pump liquid level probes. Taking two liquid extraction pump liquid level probes as an example, this embodiment sets two liquid extraction pump liquid level probe sealing rings, and the structures of the two are the same.

[0172] The first liquid level probe sealing ring 851 of the liquid extraction pump corresponds to the first liquid level probe 941 of the liquid extraction pump, and seals the mounting opening of the first liquid level probe 941 of the liquid extraction pump; the second liquid level probe sealing ring 852 of the liquid extraction pump corresponds to the second liquid level probe 942 of the liquid extraction pump, and seals the mounting opening of the second liquid level probe 942 of the liquid extraction pump.

[0173] <Separate conduction structure>

[0174] As Figure 9a and Figure 9b shown, the separate conduction structure is used to form a liquid level detection circuit in combination with the liquid level probe when the liquid storage box body 4 is pushed into the installation box body 5 to detect the liquid level in the liquid storage cavity.

[0175] The separate conduction structure includes a contact metal sheet and a contact elastic sheet. Corresponding to the number of liquid storage cavities inside the liquid storage box body, the present invention sets a corresponding number of separate conduction structures. Taking two liquid storage cavities as an example, two sets of separate conduction structures are set in this embodiment, and the two structures are the same.

[0176] The first separate conduction structure includes a first contact metal sheet 911 and a first contact elastic sheet 921. The second separate conduction structure includes a second contact metal sheet 912 and a second contact elastic sheet 922. The first contact metal sheet 911 and the second contact metal sheet 912 are arranged at the upper end of the rear cover 44 of the liquid storage box body, and the second contact elastic sheet 921 and the second contact elastic sheet 922 are arranged at the rear cover 53 of the installation box body.

[0177] Taking the first group as an example, one end of the first contact metal sheet 911 is electrically connected to the first liquid level probe 931 of the liquid storage box body, and the other end is in contact with the first contact elastic sheet 921. The other end of the first contact elastic sheet 921 is connected to the main controller of the washing machine.

[0178] The principle of the separate conduction structure is: taking the first group as an example, when the liquid storage box 4 is ejected from the installation box body 5, the first contact metal sheet 911 is separated from the first contact elastic sheet 921, and the separate conduction structure is disconnected; when the liquid storage box 4 is pushed into the installation box body 5 and locked, the first contact metal sheet 911 is in contact with the first contact elastic sheet 921, and the separate conduction structure is connected. This separate conduction structure does not require plugging and unplugging, and has a large contact range, allowing a certain assembly error, effectively avoiding the risk of deformation and failure of the plugging and unplugging structure due to large assembly errors, realizing the accurate transmission of liquid level electrical signals, improving the assembly efficiency, and reducing the assembly cost.

[0179] <Liquid level detection circuit>

[0180] As Figure 9a and Figure 9b shown, the liquid level detection probe is used to detect the liquid level of the liquid storage box body, preferably including the liquid storage box body liquid level probe and the liquid extraction pump liquid level probe, both of which include a plurality of liquid level probes. Corresponding to the number of liquid storage cavities inside the liquid storage box body, the present invention sets a corresponding number of liquid storage box body liquid level probes and liquid extraction pump liquid level probes. Taking two liquid storage cavities as an example, two sets of liquid storage box body liquid level probes and two sets of liquid extraction pump liquid level probes are set in this embodiment, and the two sets of structures are the same.

[0181] The two groups of liquid level probes for the liquid storage boxes include the first liquid level probe 931 of the liquid storage box body and the second liquid level probe 932 of the liquid storage box body; the two groups of liquid level probes for the liquid extraction pumps include the first liquid level probe 941 of the liquid extraction pump and the second liquid level probe 942 of the liquid extraction pump. Taking the first group as an example, the first liquid level probe 931 of the liquid storage box body is arranged on the rear cover 44 of the liquid storage box body for detecting the liquid level of the laundry treatment agent; one end of the first liquid level probe 941 of the liquid extraction pump is arranged on the first cavity 311 of the liquid extraction pump, and the other end is electrically connected to the main controller of the washing machine for detecting the liquid level of the laundry treatment agent.

[0182] It should be noted that the dimensions of one end of the liquid level probe of the liquid storage box and the liquid level probe of the liquid extraction pump in the liquid storage cavity or the liquid extraction pump cavity are relatively short to avoid the influence of air bubbles on the liquid level detection accuracy.

[0183] The separable conduction structure and the liquid level detection probe form a liquid level detection path: Taking the first group as an example, the main controller of the washing machine, the first contact spring piece 921, the first contact metal piece 911, the first liquid level probe 931 of the liquid storage box body, and the first liquid level probe 941 of the liquid extraction pump form a liquid level detection circuit for the first liquid storage cavity 451.

[0184] As Figure 9c shown, the liquid level detection principle is as follows: When the liquid storage box body 4 is ejected from the installation box body 5, the separable conduction structure is separated, the plug-in liquid seal connection structure is separated, and the liquid level detection circuit is disconnected; when the liquid storage box body 4 is pushed into the installation box body 5 and locked, the separable conduction structure is in contact conduction, and the plug-in liquid seal connection structure is connected. (1) If the liquid level in the liquid storage cavity is higher than the position of the liquid level probe, the liquid level detection circuit is closed, and the main controller of the washing machine does not send a signal; (2) If the liquid level in the liquid storage cavity is lower than the position of the liquid level probe, the liquid level detection circuit is disconnected, and the main controller of the washing machine issues a low liquid level signal.

[0185] Embodiment 2 Multi-barrel washing machine

[0186] This embodiment provides a multi-barrel washing machine, including a washing device, the above-mentioned feeding device and an integrated water circuit structure. The washing device has a plurality of laundry treatment barrels, and the feeding device is arranged on the side of the uppermost laundry treatment barrel. Specifically, the washing device includes at least one laundry treatment barrel, and the laundry treatment barrels can be a combination of multiple with different laundry treatment functions, arranged from top to bottom, but preferably at least having a washing function. The integrated water circuit structure is connected to the washing machine water inlet pipeline and the feeding device to accurately control the flow of water and laundry treatment agent entering the laundry treatment barrel.

[0187] <Integrated water circuit structure>

[0188] As Figure 10a and 10bAs shown, the integrated waterway structure is arranged between the dispensing device and the washing tub of the multi-tub washing machine, and is used for optimizing the internal waterway structure of the washing machine. It includes a four-way structure, a flow channel structure, a selection structure, and an exhaust structure. The four-way structure has one liquid inlet and multiple liquid outlets; the flow channel structure has multiple flow channels; the selection structure has multiple liquid inlets and multiple liquid outlets; the number of liquid outlets of the four-way structure, the number of flow channels of the flow channel structure, the number of liquid inlets of the selection structure, and the number of liquid outlets correspond to the number of laundry treatment tubs of the washing machine. Taking three washing tubs as an example, the four-way structure of the present invention is provided with three liquid outlets, the flow channel structure is provided with four flow channels, and the number of liquid inlets and liquid outlets of the selection structure are both three.

[0189] Preferably, the integrated waterway structure is a box structure, then the integrated waterway structure is a water box. The water box has a box body and a box upper cover. The box body forms multiple parallel main flow channels on the side that cooperates with the box cover, and the box cover forms auxiliary flow channels that cooperate with the main flow channels on the side that cooperates with the box body; the main flow channels and the auxiliary flow channels constitute the flow channel structure.

[0190] Preferably, the flow channel structure has an inlet, which is connected to the water inlet pipe of the multi-tub washing machine or the liquid outlet pipe of the mixing box; the flow channel structure has an outlet, which is connected to the water inlet pipe of the washing tub of the multi-tub washing machine.

[0191] Preferably, the number of liquid outlets of the four-way structure is the same as the number of liquid inlets of the selection structure. The liquid inlet of the four-way structure is connected to the liquid outlet of the mixing box, and the liquid outlet of the four-way structure is connected to the liquid inlet of the selection structure, so as to realize the diversion of the liquid discharged from the mixing box and input the laundry treatment agent to the selection structure.

[0192] Preferably, at least one drain valve is provided on the outlet side of the selection structure, and the number of drain valves is the same as the number of liquid outlets of the selection structure; the liquid inlet of the selection structure is connected to the liquid outlet of the four-way structure, and the liquid outlet of the selection structure, the drain valve, and the water inlet pipe of the washing tub of the multi-tub washing machine are connected in sequence to control the amount of washing agent entering the washing tub of the multi-tub washing machine.

[0193] Preferably, the integrated waterway structure has at least one water inlet valve, and the number of water inlet valves is the same as the number of flow channels of the flow channel structure; the water inlet valve is arranged in the water inlet pipeline of the washing machine and is connected to the flow channel inlet or the water inlet of the mixing box, and is used to control the amount of water entering the washing tub or the mixing box of the multi-tub washing machine.

[0194] Preferably, the integrated waterway structure has at least one water inlet valve, and the number of water inlet valves is the same as the number of flow channels of the flow channel structure; the water inlet valve is arranged in the water inlet pipeline of the washing machine and is connected to the flow channel inlet or the water inlet of the mixing box, and is used to control the amount of water entering the washing tub or the mixing box of the multi-tub washing machine; the box body has a drain valve fixing part for fixing the drain valve.

[0195] Specifically, the four-way structure 133 includes a four-way structure liquid inlet 1330, a first liquid outlet 1331 of the four-way structure, a second liquid outlet 1332 of the four-way structure, and a third liquid outlet 1333 of the four-way structure; the flow channel structure has a first flow channel inlet 1321, a first flow channel outlet 1311, a second flow channel inlet 1322, a second flow channel outlet 1312, a third flow channel inlet 1323, a third flow channel outlet 1313, a fourth flow channel inlet 1363, and a fourth flow channel outlet 1373; the selection structure 12 includes a first liquid inlet, a second liquid inlet, a third liquid inlet, a first liquid outlet, a second liquid outlet, and a third liquid outlet; the selection structure 12 also has a liquid discharge valve group, including a first liquid discharge valve, a second liquid discharge valve, and a third liquid discharge valve; the liquid discharge valve group is fixed on the liquid discharge valve group fixing member 134. The exhaust structure 135 is arranged at the top of the corresponding flow channel and includes a first flow channel exhaust valve 1351, a second flow channel exhaust valve 1352, a third flow channel exhaust valve 1353, and a fourth flow channel exhaust valve 1354; the integrated water channel structure has a water inlet valve group 11, including a first water inlet valve, a second water inlet valve, a third water inlet valve, and a fourth water inlet valve.

[0196] In this embodiment, the washing tub water inlet pipeline includes four paths. The main tap water inlet pipe is connected to the water inlet of the water inlet valve group 11. The outlet of the first water inlet valve is connected to the first flow channel inlet 1321. The first flow channel outlet 1311 is connected to the first washing tub water inlet pipe; the outlet of the second water inlet valve is connected to the second flow channel inlet 1322. The second flow channel outlet 1312 is connected to the second washing tub water inlet pipe; the outlet of the third water inlet valve is connected to the third flow channel inlet 1323. The third flow channel outlet 1313 is connected to the third washing tub water inlet pipe; the outlet of the fourth water inlet valve is connected to the water inlet of the mixing box 214 through the mixing box water inlet pipe 104.

[0197] The liquid outlet 213 of the mixing box is connected to the four-way structure liquid inlet through the mixing box liquid outlet pipe 105. The first liquid outlet 1331 of the four-way structure is connected to the first liquid inlet of the selection structure. The first liquid outlet of the selection structure is sequentially connected to the first liquid discharge valve, the first washing tub liquid inlet pipe 1011, the first washing tub water inlet adapter 1012, and the first washing tub liquid inlet hose 1013; the second liquid outlet 1332 of the four-way structure is connected to the second liquid inlet of the selection structure. The second liquid outlet of the selection structure is sequentially connected to the second liquid discharge valve and the second washing tub liquid inlet hose 1021; the third liquid outlet of the four-way structure is connected to the third liquid inlet of the selection structure. The third liquid outlet of the selection structure is sequentially connected to the third liquid discharge valve and the fourth flow channel liquid inlet. The fourth flow channel liquid outlet 1373 is connected to the third washing tub liquid inlet pipe 1032.

[0198] The water conveyance working principle of the integrated water channel structure is as follows: Taking the first washing tub 101 as an example, tap water reaches the first flow channel through the first water inlet solenoid valve and then enters the first washing tub 101. At this time, the amount of water entering the first washing tub 101 can be controlled by controlling the first water inlet solenoid valve.

[0199] The working principle of the integrated waterway structure for transporting the laundry treatment agent is as follows: Taking the first washing tub 101 as an example, tap water reaches the mixing box 2 through the fourth inlet solenoid valve. The laundry treatment agent enters the mixing box 2 from the liquid storage chamber through the liquid pumping pump 3, and reaches the inlet of the four-way structure through the liquid outlet pipe of the mixing box from the liquid outlet of the mixing box, and then reaches the selection structure 12 through the outlet of the four-way structure, and then reaches the first drain valve and the first washing tub inlet hose 1011 to reach the first washing tub 101. At this time, the amount of the laundry treatment agent entering the first washing tub 101 can be controlled by controlling the first drain valve.

[0200] In this embodiment, three laundry treatment tubs are provided, which are arranged from top to bottom. The first and the third are drum washing machines, and the second is a drawer-type washing tub.

[0201] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0202] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0203] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0204] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned figures of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way may be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0205] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dispensing component for a washing machine, characterized in that: It includes a liquid storage component, a liquid pumping pump, and a liquid mixing box. Among them, the liquid storage component includes: A liquid storage box body, in which a liquid storage cavity for storing laundry treatment agent is provided; An installation box body, which forms an installation cavity for installing the liquid storage box body. The installation cavity is provided with an opening through which the liquid storage box body can be pushed into or popped out of the installation cavity; The liquid storage box body is movably arranged in the installation cavity, and the liquid storage box body can be popped out of the installation cavity or locked in the installation cavity by pressing the front end face of the liquid storage box body or a button on the front end face; The liquid pumping pump is arranged behind the installation box body. On the one hand, it is connected to the liquid storage cavity of the liquid storage box body, and on the other hand, it is connected to the liquid mixing box, and is used to pump out the laundry treatment agent in the liquid storage box body and send it into the liquid mixing box for mixing with water supply; the liquid mixing box is connected to the liquid pumping pump on the one hand and the water inlet pipe of the washing machine on the other hand, so as to send the diluted laundry treatment agent to the washing tub of the washing machine; The liquid outlet of the liquid storage box body is detachably connected to the liquid pumping port of the liquid pumping pump; The liquid storage box body is of a flat and long structure and is vertically arranged along the front-back direction of the washing machine; The liquid storage cavity in the liquid storage box body is at least divided into two liquid storage cavities along the length direction of the liquid storage box body.

2. The feeding component according to claim 1, wherein: The two liquid storage cavities include a first liquid storage cavity and a second liquid storage cavity; correspondingly, the liquid storage box body is provided with a first liquid feeding port and a second liquid feeding port, a first liquid storage box body liquid outlet and a second liquid storage box body liquid outlet; Among them, the first liquid feeding port is used to add laundry treatment agent to the first liquid storage cavity, the first liquid storage box body liquid outlet is used to make the laundry treatment agent in the first liquid storage cavity flow out of the first liquid storage cavity, the second liquid feeding port is used to add laundry treatment agent to the second liquid storage cavity, and the second liquid storage box body liquid outlet is used to make the laundry treatment agent in the second liquid storage cavity flow out of the second liquid storage cavity.

3. The dispensing component according to claim 1, characterized in that: The liquid storage box body is detachably and push-popably arranged in the installation cavity.

4. The delivery component according to claim 1, characterized in that: The liquid storage box body also forms through holes on both side walls in the thickness direction of the liquid storage box body, and the through holes are used as handles.

5. The dispensing component according to claim 1, wherein: The liquid storage component includes a moving pressing and limiting component, and the moving pressing and limiting component is along the moving direction of the liquid storage box body being pushed into or popped out of the installation cavity, and is formed between the top wall and / or the bottom wall and / or the side wall where the liquid storage box body cooperates with the installation box body.

6. The dispensing component according to claim 1, characterized in that: The liquid storage assembly includes a moving pressing and limiting assembly, and the moving pressing and limiting assembly has a pressing wheel assembly. The pressing wheel assembly is arranged between the top wall of the installation box body and the top wall of the liquid storage box body. Among them, the pressing wheel assembly is arranged on the top wall of the installation box body and includes a mounting seat, a compression spring, a pressing wheel bracket and a pressing wheel. The mounting seat is arranged on the top wall of the installation box body, and its structure is a hollow shell structure. An installation space is formed inside the hollow shell structure. The compression spring, the pressing wheel bracket and the pressing wheel are arranged in sequence from top to bottom. The compression spring provides elastic force to the pressing wheel bracket. The pressing wheel is rotatably arranged on the pressing wheel bracket. The pressing wheel can extend into the installation cavity of the installation box body and abut against the liquid storage box body to provide pressure to the liquid storage box body.

7. The dispensing component according to claim 6, wherein: The mounting seat is a barrel-shaped structure with one end open and one end closed. A first limiting groove or a first limiting hole is axially formed in the side wall of the barrel-shaped structure along the axial direction of the barrel-shaped structure. A limiting claw is arranged at the top of the pressing wheel bracket. The limiting claw is slidably engaged into the first limiting groove or the first limiting hole, so that the pressing wheel bracket can slide along the axial direction of the mounting seat. An installation through hole is arranged on the installation box body. The mounting seat is fixed to the installation box body. The pressing wheel extends through the installation through hole into the installation cavity. The rotation axis of the pressing wheel is perpendicular to the installation direction of the liquid storage box body. When the liquid storage box body makes a pushing or popping movement in the installation cavity of the installation box body, the pressing wheel abuts against the liquid storage box body under the action of the compression spring, so that the liquid storage box body moves smoothly.

8. The dispensing component according to claim 6, wherein: A plurality of the pressing wheel assemblies are provided. The plurality of pressing wheel assemblies are distributed along the moving direction of the liquid storage box body. The plurality of pressing wheel assemblies are distributed on opposite sides of the liquid storage box body.

9. The dispensing component according to claim 6, characterized in that: The moving pressing and limiting assembly includes a second limiting groove, which is arranged above the liquid storage box body. When the liquid storage box body pops out of the installation box body and moves forward, and the second limiting groove is just below the pressing wheel, the pressing wheel is embedded in the second limiting groove under the action of the compression spring, preventing the liquid storage box body from continuing to make a popping movement, so that the popping travel of the liquid storage box body is controlled.

10. The dispensing component according to claim 1, wherein: The liquid storage assembly further includes a guiding and positioning assembly, which is arranged between the rear wall of the liquid storage box body and the rear wall of the installation box body along the moving direction of the liquid storage box body pushing into or popping out of the installation cavity. The guiding and positioning assembly includes a positioning post and a positioning hole. When the liquid storage box body is pushed into the installation box body, the positioning post and the positioning hole cooperate to form the axial positioning of the installation box body and the liquid storage box body.

11. The dispensing component according to claim 10, wherein: The positioning hole is a cylindrical hole and is arranged on the rear wall of the liquid storage box body in the vertical direction. Correspondingly, the positioning post is a positioning post and is arranged on the rear wall of the installation box body in the vertical direction. When the liquid storage box body is pushed into the installation box body, the positioning hole is gradually matched with the positioning post axially.

12. The dispensing component according to claim 1, characterized in that: A movement guiding assembly is further provided between the top wall and / or the bottom wall of the installation box body and the liquid storage box body. The movement guiding assembly includes a guiding groove and a guiding wheel assembly. The guiding wheel assembly includes a guiding wheel bracket and guiding wheels. The guiding groove is arranged along the moving direction of the liquid storage box body in the length direction of the top wall and / or the bottom wall of the liquid storage box body. The guiding wheel bracket is correspondingly arranged on the top wall and / or the bottom wall of the installation box body. The guiding wheels are arranged on the guiding wheel bracket in a linear pattern and are used to cooperate with the guiding groove. When the liquid storage box body is pushed into or ejected from the installation box body, the cooperation between the guiding groove and the guiding wheels guides the liquid storage box body to move into or out of the installation box body relative to the installation box body.

13. The delivery component according to claim 12, wherein: The length dimension of the guiding groove corresponds to the length dimension of the liquid storage box body. The cross-section of the guiding groove is U-shaped.

14. The dispensing component according to claim 1, characterized in that: The liquid storage assembly further includes a locking assembly. The locking assembly is arranged at the front ends of the liquid storage box body and the installation box body. The locking assembly includes a locking buckle and a locking slot. The locking buckle is arranged at the front end of the liquid storage box body, and the locking slot is arranged at the front end of the installation box body, and their positions correspond to each other. When the liquid storage box body is pushed into the installation box body, the locking buckle cooperates with the locking slot to lock the liquid storage box body in the installation cavity.

15. The dispensing component according to claim 14, characterized in that: The locking buckle is an elastic element. When the liquid storage box body is pushed into the installation box body, the locking buckle is inserted into the locking slot to complete the locking. When the liquid storage box body is ejected from the installation box body, under the action of an external force, the locking buckle deforms inward and disengages from the locking slot, and the liquid storage box body is ejected.

16. The dispensing component according to claim 14, wherein: The liquid storage assembly further includes an ejection assembly. The ejection assembly includes a release button, a resilient ejecting member, a spring, and a spring movement track. The release button is arranged on the front wall of the liquid storage box body. The resilient ejecting member is arranged on the rear wall of the liquid storage box body. The spring movement track is arranged on the rear wall of the installation box body and protrudes rearward. The spring is arranged inside the spring movement track and cooperates with the resilient ejecting member. When the release button is pressed, the locking buckle is separated from the locking slot, and the liquid storage box body is released. When the release button is released, the compressed spring returns to its original shape and releases energy, which acts on the resilient ejecting member, and the liquid storage box body automatically ejects. When the liquid storage box body is pushed into the installation box body, the spring is compressed along the spring movement track under the action of the resilient ejecting member until the locking buckle cooperates with the locking slot to complete the locking, and the liquid storage box body is locked in the installation cavity.

17. The dispensing component according to claim 1, characterized in that: The liquid storage assembly includes a locking assembly. The locking assembly includes a lock and a lock locking position. The lock is arranged on the rear wall of the installation box body or the rear wall of the liquid storage box body. The lock locking position is arranged on the rear wall of the liquid storage box body or the rear wall of the installation box body corresponding to the position of the lock. The lock cooperates with the lock locking position.

18. The dispensing component according to claim 17, wherein: The lock is a lock with a wedge-shaped buckle, and there is a concave hole on the lock locking position that cooperates with the lock.

19. The dispensing component according to claim 18, wherein: The liquid storage assembly further includes a pop-up assembly, which includes a resilient top piece and a spring; when the user presses the front end of the liquid storage box body to push the liquid storage box body into the installation box body, the buckle of the lock engages with the concave hole of the lock stop position of the lock, so that the liquid storage box body is locked in the installation box body; when the user continues to press the front end of the liquid storage box body to push the liquid storage box body into the installation box body, the buckle of the lock moves inward and disengages from the concave hole of the lock stop position of the lock. Under the action of the spring of the pop-up assembly, the resilient top piece pops the liquid storage box body out of the installation cavity.

20. The dispensing component according to claim 1, characterized in that: The liquid storage assembly further includes a position detection assembly, which has a position sensor disposed on the installation box body, and a magnet cooperating with the position sensor is disposed on the liquid storage box body; the position sensor and the magnet cooperate to detect whether the liquid storage box body is installed in place.

21. The dispensing component according to claim 2, wherein: The first liquid injection port and the second liquid injection port are provided on the same side wall of the liquid storage box body, and the same side wall is the left side wall or the right side wall of the liquid storage box body.

22. The dispensing component according to claim 21, wherein: The first liquid injection port and the second liquid injection port are provided at an upper position on the same side wall of the liquid storage box body, and the first liquid outlet of the liquid storage box body and the second liquid outlet of the liquid storage box body are provided on the same side wall and at the lower part of the rear cover of the liquid storage box body.

23. The delivery component according to claim 22, wherein: The bottom edge of the first liquid storage cavity forms an inclined angle towards the first liquid outlet of the liquid storage box body, and the cross-sectional width of the first liquid storage cavity on the side of the first liquid injection port is greater than the cross-sectional width of the first liquid storage cavity on the side of the first liquid outlet of the liquid storage box body; the bottom edge of the second liquid storage cavity forms an inclined angle towards the second liquid outlet of the liquid storage box body, and the cross-sectional width of the second liquid storage cavity on the side of the second liquid injection port is greater than the cross-sectional width of the second liquid storage cavity on the side of the second liquid outlet of the liquid storage box body.

24. The dispensing assembly according to claim 1, wherein: The liquid storage box body is further provided with a one-way ventilation structure for allowing external gas to enter the liquid storage cavity unidirectionally.

25. The dispensing assembly according to claim 24, wherein: The one-way ventilation structure is a one-way ventilation valve, which is an integrally formed structure made of an elastic material. An assembly hole for the one-way ventilation valve is provided on the liquid storage box body. The one-way ventilation valve has a ventilation hole. The top end of the one-way ventilation valve is placed in the installation cavity of the liquid storage box body and completely covers the ventilation hole. The tail end of the one-way ventilation valve is placed outside the liquid storage box body; when the cover body is opened and the laundry treatment agent is put into the liquid storage cavity through the liquid injection port, the one-way ventilation valve seals the assembly hole and the ventilation hole, thereby restricting the leakage of the laundry treatment agent; when the liquid extraction pump extracts the laundry treatment agent from the liquid storage box body, a negative pressure is formed in the liquid storage box body, and the top end of the one-way ventilation valve deforms, exposing or partially exposing the ventilation hole, so that the atmosphere enters the liquid storage box body from the outside.

26. The dispensing assembly according to claim 25, wherein: The thickness of the one-way ventilation valve gradually decreases from the center to the edge of the top end, making it easier for air to enter.

27. The dispensing assembly according to claim 1, wherein: The mixing liquid box is arranged on the rear cover of the installation box body, and a cavity for mixing the laundry treatment agent and water inlet is formed inside it; the mixing liquid box includes a rear cover and a front cover, wherein the front cover is installed on the rear cover of the installation box body, and the rear cover and the front cover cooperate to form the cavity; the rear cover of the mixing liquid box is provided with a water inlet, a first liquid inlet of the mixing liquid box, a second liquid inlet of the mixing liquid box and a liquid discharge port; the water inlet of the mixing liquid box is used to communicate with the washing machine water inlet pipe; The mixing liquid box is provided with a first through hole and a second through hole for the liquid suction port of the liquid suction pump to pass through, so as to facilitate the plug-in connection between the liquid suction port of the liquid suction pump and the liquid outlet of the liquid storage box body.

28. The feeding assembly according to claim 2, wherein: The liquid suction pump includes a pump head and a front cover of the pump body connected to the pump head. A liquid suction pump installation cavity communicating with the liquid storage box body is formed inside the front cover of the pump body. At least one liquid suction port of the liquid suction pump is arranged on the liquid suction pump installation cavity, and it is connected to the liquid outlet arranged on the liquid storage box body; Corresponding to the arrangement of the two liquid storage cavities of the liquid storage box body, the liquid suction pump installation cavity is provided with a first cavity of the liquid suction pump and a second cavity of the liquid suction pump. The first cavity of the liquid suction pump and the second cavity of the liquid suction pump correspond to the two liquid storage cavities of the liquid storage box body one by one. Among them, the first cavity of the liquid suction pump is provided with a first liquid suction port and a first liquid outlet of the liquid suction pump, and the second cavity of the liquid suction pump is provided with a second liquid suction port and a second liquid outlet of the liquid suction pump. Among them, the first cavity of the liquid suction pump, the first liquid outlet of the liquid suction pump and the first liquid suction port communicate with the first liquid storage cavity of the liquid storage box body correspondingly; the second cavity of the liquid suction pump, the second liquid outlet of the liquid suction pump and the second liquid suction port communicate with the second liquid storage cavity of the liquid storage box body correspondingly.

29. The feeding assembly according to claim 28, wherein: The first liquid storage cavity is provided with a first liquid outlet of the liquid storage box body, and the second liquid storage cavity is provided with a second liquid outlet of the liquid storage box body; A first plug-in type liquid sealing connection structure is arranged between the first liquid outlet of the liquid storage box body and the first liquid suction port of the liquid suction pump; a second plug-in type liquid sealing connection structure is arranged between the second liquid outlet of the liquid storage box body and the second liquid suction port of the liquid suction pump; Among them, the first plug-in type liquid sealing connection structure includes a first tubular valve body, a first side sealing ring, a first needle valve sealing ring, a first needle valve spring, a first needle valve, a first needle valve plug and a first sealing ring of the liquid suction pipe of the liquid suction pump; The second plug-in type liquid sealing connection structure includes a second tubular valve body, a second side sealing ring, a second needle valve sealing ring, a second needle valve spring, a second needle valve, a second needle valve plug and a second sealing ring of the liquid suction pipe of the liquid suction pump; Among them, the first tubular valve body, the first side sealing ring, the first needle valve sealing ring, the first needle valve spring, the first needle valve, the first needle valve plug and the first liquid outlet of the liquid storage box body are arranged coaxially in sequence; the second tubular valve body, the second side sealing ring, the second needle valve sealing ring, the second needle valve spring, the second needle valve, the second needle valve plug and the second liquid outlet of the liquid storage box body are arranged coaxially in sequence.

30. The feeding assembly according to claim 29, wherein: One end of the first tubular valve body has a larger inner diameter, and the other end has a smaller inner diameter, and a conical sealing surface is formed at the transition between the large and small inner diameter sections; the outer diameter of one end of the first needle valve close to the liquid storage chamber is small, and the outer diameter of the end close to the liquid pumping pump is large, and there is an annular boss structure; the first needle valve is arranged inside the first tubular valve body; the first needle valve sealing ring is sleeved between the boss structure of the first needle valve and the conical sealing surface of the first tubular valve body; the first needle valve spring is sleeved on the end with a small outer diameter of the first needle valve, and the two ends are respectively connected to the first needle valve and the first needle valve plug. One end of the second tubular valve body has a larger inner diameter, and the other end has a smaller inner diameter, and a conical sealing surface is formed at the transition between the large and small inner diameter sections; the outer diameter of one end of the second needle valve close to the liquid storage chamber is small, and the outer diameter of the end close to the liquid pumping pump is large, and there is an annular boss structure, the second needle valve is arranged inside the second tubular valve body; the second needle valve sealing ring is sleeved between the boss structure of the second needle valve and the conical sealing surface of the second tubular valve body; the second needle valve spring is sleeved on the end with a small outer diameter of the second needle valve, and the two ends are respectively connected to the second needle valve and the second needle valve plug.

31. The dispensing assembly according to claim 30, wherein: The first liquid storage chamber of the liquid storage box body is provided with a first liquid level probe of the liquid storage box body, and the second liquid storage chamber of the liquid storage box body is provided with a second liquid level probe of the liquid storage box body; The first chamber of the liquid pumping pump is provided with a first liquid level probe of the liquid pumping pump, and the second chamber of the liquid pumping pump is provided with a second liquid level probe of the liquid pumping pump; The liquid storage box body further includes a liquid level probe sealing assembly, and the liquid level probe sealing assembly includes a liquid storage box liquid level probe sealing ring and a liquid pumping pump liquid level probe sealing ring, which are used for sealingly corresponding to the liquid storage box body liquid level probe mounting hole and the liquid pumping pump liquid level probe mounting port one by one; The dispensing assembly is further provided with a split conduction structure corresponding to the number of liquid storage chambers inside the liquid storage box body; among them, the split conduction structure corresponding to the first liquid storage chamber is the first split conduction structure, and the split conduction structure corresponding to the second liquid storage chamber is the second split conduction structure.

32. The dispensing assembly according to claim 31, wherein: The first split conduction structure includes a first contact metal sheet and a first contact elastic sheet; the second split conduction structure includes a second contact metal sheet and a second contact elastic sheet; wherein the first contact metal sheet and the second contact metal sheet are arranged at the upper end of the rear cover of the liquid storage box body, and the second contact elastic sheet and the second contact elastic sheet are arranged at the rear cover of the installation box body; When the liquid storage box body is ejected from the installation box body, the first contact metal sheet and the first contact elastic sheet are separated, the second contact metal sheet and the second contact elastic sheet are separated, both the first split conduction structure and the second split conduction structure are in a separated state, both the first plug-in liquid sealing connection structure and the second plug-in liquid sealing connection structure are in a separated state, and the liquid level detection circuit is disconnected; When the liquid storage box body is pushed into the installation box body and locked, the first contact metal sheet and the first contact elastic sheet are in contact with each other, the second contact metal sheet and the second contact elastic sheet are in contact with each other, both the first split conduction structure and the second split conduction structure are in a contact conduction state, and both the first plug-in liquid sealing connection structure and the second plug-in liquid sealing connection structure are in a sealed connection state. Among them, the first contact elastic sheet, the first contact metal sheet, the first liquid level probe of the liquid storage box body and the first liquid level probe of the liquid extraction pump constitute a liquid level detection circuit for the first liquid storage cavity; the second contact elastic sheet, the second contact metal sheet, the second liquid level probe of the liquid storage box body and the second liquid level probe of the liquid extraction pump constitute a liquid level detection circuit for the second liquid storage cavity.

33. The dispensing assembly according to claim 2, wherein: One of the first liquid storage cavity and the second liquid storage cavity is used for adding fabric softener, and the other is used for adding detergent.

34. A multi-barrel washing machine is provided with a plurality of laundry treatment barrels from top to bottom. A dispensing assembly according to any one of claims 1-33 is provided on one side of the laundry treatment barrel at the uppermost position, and the laundry treatment agent is fed from top to bottom into the laundry treatment barrel that needs to be provided with the laundry treatment agent.

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