Liquid storage assembly, feeding device with liquid storage assembly and multi-barrel washing machine with liquid storage assembly

Abstract

The invention provides a liquid storage assembly, a putting device with the liquid storage assembly and a multi-barrel washing machine. The liquid storage assembly comprises a liquid storage box body and an installation box body, and a liquid storage cavity used for storing a clothes treating agent is formed in the liquid storage box body; a mounting cavity for mounting the liquid storage box body is formed in the mounting box body, and is provided with an opening through which the liquid storage box body can be pushed into or popped out of the mounting cavity; the liquid storage box body is movably arranged in the mounting cavity, and the liquid storage box body can be popped out of 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; furthermore, in order to facilitate the liquid storage box body to be arranged in the mounting box body in a pushing and bouncing mode and achieve accurate limiting and positioning, a motion control assembly is arranged between the mounting box body and the liquid storage box body, and the motion control assembly comprises a motion guide assembly, a motion pressing and limiting assembly, a bouncing / locking assembly, a positioning assembly and the like. Therefore, the liquid storage box body can be accurately limited and positioned in the process of popping up the liquid storage box body from the mounting cavity or moving the liquid storage box body into the mounting cavity.

Description

Technical Field

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

[0002] With the advancement of science and technology, smart washing machine dispensing technology is increasingly being applied to washing machine operations. This technology can intelligently and precisely add a dosage of laundry treatment based on the amount of laundry, largely eliminating the need for manual dosing, which can lead to inaccurate dosing of detergent and treatment. Furthermore, smart dispensing technology allows for a larger volume of treatment to be dispensed at once, allowing for extended use, significantly reducing the time and cost of adding treatment per wash.

[0003] The clothing treatment agent boxes of some existing clothing treatment devices are not removable. After long-term use, gel-like clothing treatment agent will accumulate inside the clothing treatment agent box, or when replacing clothing treatment agents of different brands, unpredictable chemical reactions will occur, causing odor inside the box. The non-removable clothing treatment agent box cannot be cleaned, which greatly reduces the user experience of the product. Summary of the Invention

[0004] To this end, the present invention provides a liquid storage assembly, a dispensing device and a multi-barrel washing machine having the same, so as to solve the problem that the clothing treatment agent box body of the dispensing system in the prior art cannot be disassembled.

[0005] In order to achieve the above object, the present invention provides a liquid storage assembly, comprising:

[0006] A liquid storage box body, wherein the liquid storage box body is provided with a liquid storage cavity for storing the clothes treating agent;

[0007] The mounting box forms a mounting cavity for mounting the liquid storage box body, and the mounting cavity is provided with an opening for the liquid storage box body to be pushed into or ejected from the mounting cavity;

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

[0009] Further optionally, the liquid storage box body is detachably and elastically arranged in the installation cavity.

[0010] Further optionally, the liquid storage component includes a motion clamping limit component, which pushes or pops out the installation cavity along the movement direction of the liquid storage box body, and is formed between the top wall and / or bottom wall and / or side wall of the liquid storage box body and the installation box body.

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

[0012] Further optionally, the mounting seat is a barrel-shaped structure with one end open and the other end closed, and a first limiting groove or a first limiting hole is opened on the side wall of the barrel-shaped structure along the axial direction of the barrel structure; a limiting claw is provided on the top of the pressure wheel bracket, and the limiting claw slides and engages in the first limiting groove or the first limiting hole, so that the pressure wheel bracket can slide along the axial direction of the mounting seat; a mounting through hole is provided on the mounting box body, and the mounting seat is fixed to the mounting box body, and the pressure wheel extends into the mounting cavity through the mounting through hole, and the rotating axis of the pressure wheel is perpendicular to the installation direction of the liquid storage box body; when the liquid storage box body is pushed in or popped out in the mounting cavity of the mounting box body, the pressure wheel is pressed 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 pressure wheel assemblies are provided, and the plurality of pressure wheel assemblies are distributed along the moving direction of the liquid storage box body, and / or the plurality of pressure wheel assemblies are distributed on opposite sides of the liquid storage box body.

[0014] Further optionally, the movement clamping limit assembly includes a second limit groove, which is arranged above the liquid storage box body; when the liquid storage box body is popped out of the mounting box body and moves forward, and the second limit groove is just below the clamping wheel, the clamping wheel is embedded in the second limit groove under the action of the compression spring, preventing the liquid storage box body from continuing to pop out, so that the pop-up stroke of the liquid storage box body is controlled.

[0015] Further optionally, the liquid storage assembly also includes a guide 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 movement direction of the liquid storage box body being pushed into or popped out of the installation cavity. The guide positioning assembly includes a positioning column and a positioning hole. When the liquid storage box body is pushed into the installation box body, the positioning column and the positioning hole cooperate together 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 column is a positioning column 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 cooperates with the positioning column along the axial direction.

[0017] Further optionally, a motion guide assembly is further provided between the top wall and / or bottom wall between the installation box body and the liquid storage box body, the motion guide assembly comprising a guide groove and a guide wheel assembly, the guide wheel assembly comprising a guide wheel bracket and a guide wheel, the guide groove being arranged in the length direction of the top wall and / or bottom wall of the liquid storage box body along the movement direction of the liquid storage box body; the guide wheel bracket being correspondingly arranged on the top wall and / or bottom wall of the installation box body; the guide wheel being arranged on the guide wheel bracket in a linear pattern for cooperating with the guide groove; when the liquid storage box body is pushed into or popped out of the installation box body, the guide groove and the guide wheel cooperate to guide the pushing or popping-out movement of the liquid storage box body relative to the installation box body.

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

[0019] Further optionally, the liquid storage assembly also includes a locking assembly, which is arranged at the front end of the liquid storage box body and the mounting 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 mounting box body, and the positions of the two correspond; when the liquid storage box body is pushed into the mounting box body, the locking buckle cooperates with the locking slot to lock the liquid storage box body in the mounting cavity.

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

[0021] Further optionally, the liquid storage assembly also includes a pop-up assembly, 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 the release button is released, the compressed spring returns to its original shape, releases energy, and acts on the rebound top piece, and the liquid storage box body automatically pops out; 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 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 buckle is embedded in the concave 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 concave hole of the lock buckle locking position. Under the action of the spring of the pop-up assembly, the rebound top member 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 provided on the liquid storage box body; the position sensor and the magnet are used together to detect whether the liquid storage box body is installed in place.

[0026] Further optionally, the liquid storage box body is separated into at least one liquid storage cavity 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 storage box body liquid outlet; wherein the liquid injection port is used to add clothing treatment agent to the liquid storage cavity, and the liquid storage box body liquid outlet is used to allow the clothing treatment agent in the liquid storage cavity to 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; and 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 toward the liquid outlet of the liquid storage box body, and the side cross-sectional width of the liquid injection port is greater than the side cross-sectional width of the liquid outlet of the liquid storage box body.

[0029] Further optionally, the liquid storage chamber is further provided with a one-way vent valve for connecting the outside world and the liquid storage chamber to maintain a constant pressure in the liquid storage chamber.

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

[0031] Further optionally, the liquid storage component also includes a liquid injection port sealing component; the liquid injection port sealing component has a screw cap and a liquid injection port sealing ring, the screw cap cooperates with the liquid injection port, and relies on the liquid injection port sealing ring to seal the liquid injection port.

[0032] The present invention also provides a dispensing component, which has a liquid storage component as described in any one of the above items, and the dispensing component also includes a liquid extraction pump and a liquid mixing box. The liquid extraction pump is arranged at the rear of 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 extract the clothing treatment agent in the liquid storage box body and send it into the liquid mixing box to mix with the feed water; the liquid mixing box is connected to the liquid extraction pump on the one hand, and on the other hand, it is connected to the water inlet pipe of the washing machine to send the diluted clothing treatment agent to the washing tub.

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

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

[0035] Further optionally, the mixing box has a cavity, and is provided with a water inlet connected to the cavity, at least one liquid inlet and at least one liquid outlet; 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 plug-connected to the liquid outlet of the liquid pump.

[0036] Further optionally, the liquid mixing box comprises a rear cover and a front cover forming a cavity, the rear cover being provided with a liquid inlet and a liquid outlet; the liquid mixing box being provided with a through hole for the liquid extraction port of the liquid extraction pump to pass through; the liquid mixing box being provided below the rear cover of the mounting box and being integrally connected to the rear cover of the mounting box.

[0037] Further optionally, the liquid outlet of the liquid storage box body and the liquid suction port of the liquid pump form a plug-in liquid sealing connection structure, and the plug-in liquid sealing connection structure comprises 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 pump, the tubular valve body, the side sealing ring, the needle valve sealing ring, the needle valve, the needle valve spring, the needle valve plug and the liquid outlet of the liquid storage box body are coaxially arranged in sequence; 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 with the tubular valve body; the liquid pump is provided with a liquid inlet sealing ring, which is used for sealing between the outer wall of the liquid suction port of the liquid 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.

[0038] Further optionally, the dispensing assembly further comprises a liquid level detection assembly having a liquid level probe and a separate conductive structure for detecting the liquid level in the liquid storage chamber. The liquid level probe comprises a liquid storage box liquid level probe and a liquid pump liquid level probe, respectively used to detect the liquid level of the laundry treatment agent in the liquid storage chamber and the liquid pump chamber.

[0039] Further optionally, the separate conductive structure is provided with a contact metal sheet and a contact spring; the contact metal sheet is arranged on the rear cover of the liquid storage box body, and one end of the contact spring is electrically connected to the liquid level probe of the liquid storage box body; the contact spring is arranged on the rear cover of the installation box body, one end of which is electrically connected to the main controller of the washing machine, and the other end is in contact with the contact metal sheet; one end of the liquid pump 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 smaller size in the liquid storage cavity; the liquid pump level probe The probe is arranged in the liquid pump cavity and has a smaller size in the liquid pump cavity; in this way, the washing machine main controller, the separate conductive structure, the liquid storage box liquid level probe and the liquid pump liquid level probe form an electrical circuit; when the liquid level value of the liquid storage cavity is high, the liquid storage box body liquid level probe contacts the clothing treatment agent, the electrical circuit is connected, and the main controller of the washing machine does not send a liquid level value signal; when the liquid level value of the liquid storage cavity is low, the liquid storage box body liquid level probe does not contact the clothing 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 multiple clothing processing barrels from top to bottom, and the above-mentioned feeding component or the above-mentioned liquid storage component is provided on one side of the clothing processing barrel at the top, and the clothing treatment agent is fed from top to bottom into the clothing treatment barrel that needs to be provided with clothing treatment agent.

[0041] Further optionally, the multi-barrel washing machine further includes an integrated water channel structure, which is arranged between the delivery assembly and the washing tub of the multi-barrel washing machine and is used to optimize the water channel of the multi-barrel washing machine.

[0042] The integrated waterway structure comprises:

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

[0044] A gating structure having at least one liquid inlet and at least one liquid outlet; used to control the flow of clothing treatment agent entering the washing tub;

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

[0046] The exhaust structure is arranged at the flow path structure and is used to balance the air pressure inside and outside the flow path.

[0047] Further optionally, the integrated water channel structure is a box body structure, and the integrated water channel structure is a water box, the water box has a box body and a box cover, the box body is formed with a plurality of parallel main channels on the side cooperating with the box cover, and the box cover is formed with a secondary channel cooperating with the main channel on the side cooperating with the box body; the main channel and the secondary channel constitute the 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 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 four-way structure liquid outlet has the same number as the gate structure liquid inlet, the four-way structure liquid inlet is connected to the mixing box liquid outlet, and the four-way structure liquid outlet is connected to the gate structure liquid inlet, so as to realize the diversion of the liquid discharged from the mixing box and input the clothing treatment agent into the gate 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 consistent with the number of the liquid outlets of the gating structure; the liquid inlet of the gating structure is connected to the liquid outlet of the four-way structure, and the liquid outlet of the gating structure, the drain valve and the water inlet pipe of the washing barrel of the multi-barrel washing machine are connected in sequence to control the amount of detergent entering the washing barrel of the multi-barrel washing machine.

[0051] Further optionally, the integrated water channel structure has at least one water inlet valve, and the number of the water inlet valves is consistent with the number of flow channels in the flow channel structure; the water inlet valve is arranged in the water inlet pipe of the washing machine, 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 barrel of the multi-barrel washing machine or the mixing box.

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

[0053] Further optionally, the liquid storage box body is divided into at least two liquid storage chambers along the length direction of the liquid storage box body; the at least two liquid storage chambers include a first liquid storage chamber and a second liquid storage chamber; corresponding to the two liquid storage chambers, the liquid storage box body is provided with a first liquid injection port and a second liquid injection port, a first liquid storage box body liquid outlet and a second liquid storage box body liquid outlet; wherein the first liquid injection port is used to add clothing treatment agent to the first liquid storage chamber, and the first liquid storage box body liquid outlet is used to allow the clothing treatment agent in the first liquid storage chamber to flow out of the first liquid storage chamber, the second liquid injection port is used to add clothing treatment agent to the second liquid storage chamber, and the second liquid storage box body liquid outlet is used to allow the clothing treatment agent in the second liquid storage chamber to flow out of the second liquid storage chamber; further optionally, detergent is provided in the first liquid storage chamber, and softener is provided in the second liquid storage chamber;

[0054] Further optionally, 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.

[0055] Further optionally, the first liquid injection port and the second liquid injection port are arranged at the upper position of the same side wall of the liquid storage box body, and the first liquid storage box body liquid outlet and the second liquid storage box body liquid outlet are arranged on the same side wall and located at the lower part of the liquid storage box body rear cover.

[0056] Further optionally, the bottom edges of the first liquid storage cavity and the second liquid storage cavity each form an inclination angle toward their respective liquid storage box body liquid outlets, and the side cross-sectional width of the liquid injection port of each liquid storage cavity is greater than the side cross-sectional width of the liquid storage box body liquid outlet.

[0057] Further optionally, the mixing box is arranged on the rear cover of the mounting box, and a cavity for mixing the laundry treatment agent and the incoming water is formed therein; the mixing box includes a rear cover and a front cover, wherein the front cover is mounted on the rear cover of the mounting box, and the rear cover and the front cover cooperate to form a cavity; the rear cover of the mixing box is provided with a water inlet, a first liquid inlet of the mixing box, a second liquid inlet of the mixing box, and a liquid discharge port; the water inlet of the mixing box is used to communicate with the water inlet pipe of the washing machine;

[0058] The liquid mixing box is provided with a first through hole and a second through hole for the liquid extraction port of the liquid extraction pump to pass through, so as to facilitate the plug-in connection between the liquid extraction port of the liquid extraction pump and the liquid outlet of the liquid storage box body.

[0059] Further optionally, the liquid pump includes a pump head and a pump body front cover connected to the pump head, a liquid pump installation cavity communicating with the liquid storage box body is formed in the pump body front cover, and the liquid pump installation cavity is provided with at least one liquid pump liquid extraction port, which is connected to the liquid outlet provided on the liquid storage box body;

[0060] Corresponding to the setting of the two liquid storage cavities of the liquid storage box body, the liquid pump installation cavity is provided with a first liquid pump cavity and a second liquid pump cavity, and the first liquid pump cavity and the second liquid pump cavity correspond one-to-one to the two liquid storage cavities of the liquid storage box body, wherein the first liquid pump cavity is provided with a first liquid pumping port and a first liquid outlet of the liquid pump, and the second liquid pump cavity is provided with a second liquid pumping port and a second liquid outlet of the liquid pump, wherein the first liquid pump cavity, the first liquid outlet and the first liquid pumping port are correspondingly connected with the first liquid storage cavity of the liquid storage box body; the second liquid pump cavity, the second liquid outlet and the second liquid pumping port of the liquid pump are correspondingly connected with the second liquid storage cavity of the liquid storage box body.

[0061] Further optionally, 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;

[0062] A first plug-in liquid-tight connection structure is provided between the first liquid outlet of the liquid storage box body and the first liquid extraction port of the liquid extraction pump; a second plug-in liquid-tight connection structure is provided between the second liquid outlet of the liquid storage box body and the second liquid extraction port of the liquid extraction pump;

[0063] The first plug-in liquid-tight 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 pump liquid pipe;

[0064] The second plug-in liquid-tight 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 pump liquid pipe;

[0065] 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 coaxially arranged 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 coaxially arranged in sequence.

[0066] Further optionally, the first tubular valve body has a large inner diameter at one end and a small inner diameter at the other end, and a tapered sealing surface is formed at the transition between the large and small inner diameter sections; the first needle valve has a small outer diameter at the end near the liquid storage chamber and a large outer diameter at the end near the liquid pump, and has an annular boss structure; the first needle valve is disposed inside the first tubular valve body; the first needle valve sealing ring is sleeved between the first needle valve boss structure and the tapered sealing surface of the first tubular valve body; the first needle valve spring is sleeved on the end of the first needle valve with a small outer diameter, and the two ends are respectively connected to the first needle valve and the first needle valve plug;

[0067] One end of the second tubular valve body has a large inner diameter, and the other end has a small 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 second needle valve close to the liquid storage chamber is small, and the outer diameter close to the liquid pump is large, and there is an annular boss structure, and the second needle valve is arranged inside the second tubular valve body; the second needle valve sealing ring is sleeved between the second needle valve boss structure and the conical sealing surface of the second tubular valve body; the second needle valve spring is sleeved on the end of the second needle valve with a small outer diameter, and the two ends are respectively connected to the second needle valve and the second needle valve plug.

[0068] Further optionally, the first liquid storage cavity 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 cavity of the liquid storage box body is provided with a second liquid level probe of the liquid storage box body;

[0069] The first chamber of the liquid pump is provided with a first liquid level probe of the liquid pump, and the second chamber of the liquid pump is provided with a second liquid level probe of the liquid pump;

[0070] The liquid storage box body also includes a liquid level probe sealing assembly, which includes a liquid storage box liquid level probe sealing ring and a liquid pump liquid level probe sealing ring, which are used to seal with the liquid storage box body liquid level probe mounting hole and the liquid pump liquid level probe mounting port in a one-to-one correspondence;

[0071] The dispensing component is also provided with a separate conductive structure corresponding to the number of liquid storage cavities inside the liquid storage box body; wherein, the separate conductive structure corresponding to the first liquid storage cavity is a first separate conductive structure, and the separate conductive structure corresponding to the second liquid storage cavity is a second separate conductive structure.

[0072] Further optionally, the first separate conductive structure includes a first contact metal sheet and a first contact spring; the second separate conductive structure includes a second contact metal sheet and a second contact spring; wherein the first contact metal sheet and the second contact metal sheet are arranged on the upper end of the rear cover of the liquid storage box body, and the second contact spring and the second contact spring are arranged at the rear cover of the mounting box body;

[0073] When the liquid storage box body is ejected from the mounting 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, the first detachable conductive structure and the second detachable conductive structure are both in a detached state, the first plug-in liquid sealing connection structure and the second plug-in liquid sealing connection structure are both in a detached state, and the liquid level detection circuit is disconnected;

[0074] When the liquid storage box body is pushed into the mounting box body and locked, the first contact metal sheet and the first contact elastic sheet contact together, the second contact metal sheet and the second contact elastic sheet contact together, the first separate conductive structure and the second separate conductive structure are both in a contact conductive state, and the first plug-in liquid sealing connection structure and the second plug-in liquid sealing connection structure are both in a sealed connection state, wherein 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 pump constitute a liquid level detection circuit of the first liquid storage chamber; 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 pump constitute a liquid level detection circuit of the second liquid storage chamber.

[0075] Further optionally, the liquid storage box body is further provided with a one-way ventilation structure that allows external air to enter the liquid storage cavity in one direction.

[0076] Further optionally, the one-way ventilation structure is a one-way ventilation valve, which is an integrally molded structure made of elastic material, and 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 the top end completely covers the ventilation hole, and 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 clothing treatment agent is added into the liquid storage cavity through the liquid feeding port, the one-way ventilation valve seals the assembly hole and the ventilation hole, thereby limiting the leakage of the clothing treatment agent; when the liquid pump extracts the clothing 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 is deformed, so that the ventilation hole is exposed or partially exposed, so that the atmosphere can enter the liquid storage box body from the outside.

[0077] Further optionally, the thickness of the one-way vent valve gradually decreases from the center to the edge of the top end.

[0078] The present invention has the following advantages: the dispensing component of the present invention is detachable and easy to clean by using a detachable liquid storage box body, thereby enhancing the user experience; the movement and positioning accuracy of the liquid storage box body is improved by using a motion guide 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 separate conductive structure and a short-size liquid level probe for detection, and the influence of bubbles on the probe is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0080] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0081] Figure 1 This is a schematic structural diagram of an embodiment of a washing machine main body and a dispensing assembly provided by the present invention;

[0082] Figure 2a A schematic structural diagram of an embodiment of a liquid mixing box provided by the present invention;

[0083] Figure 2b This is a schematic diagram of the water circuit of the multi-tub washing machine provided by the present invention;

[0084] Figure 3 A schematic structural diagram of an embodiment of a liquid pump provided by the present invention;

[0085] Figure 4a A schematic diagram of the external structure of a liquid storage box embodiment provided by the present invention;

[0086] Figure 4b A schematic diagram of the internal structure of a liquid storage box embodiment provided by the present invention;

[0087] Figure 4c A schematic structural diagram of an embodiment of a one-way vent valve provided by the present invention;

[0088] Figure 5a Schematic diagram of the exploded structure of the installation box embodiment provided by the present invention

[0089] Figure 5b This is a schematic diagram of the overall structure of an embodiment of the installation box provided by the present invention;

[0090] Figure 6a A schematic structural diagram of an embodiment of a liquid storage box motion guide assembly provided by the present invention;

[0091] Figure 6b A schematic structural diagram of an embodiment of a liquid storage box movement pressing and limiting assembly and a positioning assembly provided by the present invention;

[0092] Figure 6c A schematic structural diagram of an embodiment of a liquid storage box pressure wheel assembly provided by the present invention;

[0093] Figure 6d This is a schematic diagram of the exploded structure of an embodiment of a liquid storage box body pinch wheel assembly provided by the present invention;

[0094] Figure 7a A schematic structural diagram of an embodiment of a liquid storage box locking assembly provided by the present invention;

[0095] Figure 7b This is a schematic structural diagram of an embodiment of a liquid storage box ejection assembly and a position detection assembly provided by the present invention;

[0096] Figure 7c and 7d A schematic structural diagram of another embodiment of the locking assembly of the liquid storage box provided by the present invention;

[0097] Figure 8a 、 8b 8c is a schematic structural diagram of a sealing assembly provided by the present invention;

[0098] Figure 9a and 9b A schematic diagram of the structure of the liquid level detection component provided by the present invention;

[0099] Figure 9c A circuit diagram of the liquid level detection component provided by the present invention;

[0100] Figure 10a A schematic diagram of the integrated waterway structure provided by the present invention;

[0101] Figure 10b This is a schematic structural diagram of an embodiment of the integrated waterway structure box body provided by the present invention;

[0102] In the picture:

[0103] 1- Main frame of washing machine;

[0104] 2-mixing box; 20-mixing box front cover; 201-first positioning post; 202-second positioning post; 21-mixing box rear cover; 211-mixing box first liquid inlet; 212-mixing box second liquid inlet; 213-mixing box liquid outlet; 214-mixing box water inlet; 221-first through hole; 222-second through hole;

[0105] 3-liquid pump; 30-pump head; 311-first chamber of the liquid pump; 312-second chamber of the liquid pump; 321-first liquid outlet of the liquid pump; 322-second liquid outlet of the liquid pump; 331-first liquid outlet of the liquid pump; 332-second liquid outlet of the liquid pump;

[0106] 4 - liquid storage box body; 401 - first liquid injection port; 402 - second liquid injection port; 411 - first one-way vent valve; 412 - second one-way vent valve; 42 - handle; 43 - liquid storage box body front cover; 44 - liquid storage box body rear cover; 451 - first liquid storage cavity; 452 - second liquid storage cavity; 461 - first liquid storage box body liquid outlet; 462 - second liquid storage box body liquid outlet;

[0107] 5- Install the box body; 50- Install the box front cover; 501- Install the box front cover body; 502- Install the box front decorative cover; 51- Install the box left shell; 52- Install the box right shell; 53- Install the box back cover; 531- Install the box back cover upper body; 532- Install the box back cover lower body;

[0108] 61-Motion guide assembly; 611-Guide slot; 612-Guide wheel bracket; 613-Guide wheel; 62-Motion limit slot; 63-Guide wheel assembly; 631-Base; 632-Compression spring; 633-Pressing wheel bracket; 634-Pressing wheel; 64-Positioning assembly; 641-First positioning hole; 642-Second positioning hole;

[0109] 71 - Locking assembly; 711 - First locking buckle; 712 - Second locking buckle; 713 - First locking slot; 714 - Second locking slot; 72 - Release button; 73 - Ejection assembly; 731 - Rebound ejector; 732 - Rebound spring; 733 - Spring rail; 74 - Position detection assembly; 741 - Magnet; 742 - Hall effect sensor; 751 - Lock buckle; 752 - Lock buckle locking position;

[0110] 8-sealing assembly; 81-liquid injection port sealing assembly; 811-first annular sealing ring of liquid injection port; 812-second annular sealing ring of liquid injection port; 813-first screw cap of liquid injection port; 814-second screw cap of liquid injection port; 82-liquid storage box liquid level probe sealing assembly; 821-first liquid level probe sealing ring of liquid storage box body; 822-second liquid level probe sealing ring of 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 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 of the liquid pump suction pipe; 842 - second sealing ring of the liquid pump suction pipe; 851 - sealing ring of the first liquid level probe of the liquid pump; 852 - sealing ring of the second liquid level probe of the liquid pump;

[0111] 9 - Liquid level detection assembly; 911 - First contact metal sheet; 912 - Second contact metal sheet; 921 - First contact spring; 922 - Second contact spring; 931 - First liquid level probe of the liquid storage box; 932 - Second liquid level probe of the liquid storage box; 941 - First liquid level probe of the liquid pump; 942 - Second liquid level probe of the liquid pump;

[0112] 101-first washing tub; 1011-first washing tub liquid inlet pipe; 1012-first washing tub liquid inlet adapter; 1013-first washing tub liquid inlet hose;

[0113] 102-second washing tub; 1021-liquid inlet hose for the second washing tub;

[0114] 103-third washing tub; 1031-third washing tub liquid inlet hose; 1032-third washing tub liquid inlet pipe;

[0115] 104-water inlet pipe of the mixing box; 105-liquid outlet pipe of the mixing box;

[0116] 11-water inlet valve;

[0117] 12-selector 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;

[0118] 13-Integrated waterway structure;

[0119] 1311-first flow channel outlet; 1312-second flow channel outlet; 1313-third flow channel outlet;

[0120] 1321 - first flow channel entrance; 1322 - second flow channel entrance; 1323 - third flow channel entrance;

[0121] 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;

[0122] 134- gate structure support;

[0123] 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;

[0124] 1363-the fourth flow channel entrance; 1373-the fourth flow channel exit. DETAILED DESCRIPTION

[0125] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0126] Example 1: Delivery device

[0127]

Overall layout

[0128] The dispensing device of the present invention is a treatment agent dispensing device installed on a washing device. The specific washing device can be a dishwasher, a washing machine or other washing device. The treatment agent can be a clothing treatment agent or other treatment agents. The present invention does not limit its type.

[0129] like Figure 1 As shown, in this embodiment, the dispensing device is preferably arranged on a multi-barrel washing machine, and the multi-barrel washing machine is provided with multiple clothing processing barrels from top to bottom. The specific uses of the multiple clothing processing barrels can be a combination of barrels with different clothing processing functions such as washing, dehydration, drying, and disinfection, but preferably have at least a washing function. In addition, the washing method can be a combination of washing barrels with different washing methods such as drum type, pulsator type, and spray type. This embodiment adopts three washing barrels at the top, middle, and bottom, the upper barrel is a drum washing barrel, the middle barrel is a drawer-type pulsator washing barrel, and the lower barrel is a drum washing barrel. Of course, the dispensing device proposed in the present invention does not limit the specific functional type and washing type of the multi-barrel clothing processing. However, the more preferred effect is highlighted in the field of multi-barrel washing machines where the installation space of the dispensing device is relatively small.

[0130] Further Figure 1As shown, the multi-tub washing machine proposed in this embodiment comprises a main frame 1, which defines, from top to bottom, a space for accommodating multiple laundry treatment tubs. The dispensing device is positioned above the multi-tub washing machine and near the water inlet pipe, preferably to the left or right of the topmost washing tub, to deliver laundry treatment agent to the multiple laundry treatment tubs from top to bottom. Of course, if the overall height of the washing machine is not too high, the dispensing device can also be positioned above the topmost laundry treatment tub, along the horizontal direction of the washing machine.

[0131] Specifically, the dispensing device comprises a liquid pump 3, a liquid mixing box 2, a liquid storage box 4, and a mounting box 5. The mounting box 5 is mounted on the washing machine's main frame 1 and located behind the front cover of the washing machine door, preferably near the water inlet pipe. The mounting box 5, as a component cooperating with the liquid storage box 4, forms a cavity with an open front end. The liquid storage box 4 is inserted into the cavity from the front end of the mounting box 5 through the opening of the mounting box 5 and can be pushed and ejected, flexibly engaging the mounting box 5. Preferably, the liquid storage box 4 is removably mounted within the mounting box 5.

[0132] The mixing box 2 and the liquid pump 3 are arranged on the rear side of the mounting box 5, wherein the liquid pump liquid extraction port is connected to the liquid outlet of the liquid storage box body, and the liquid outlet of the liquid pump is connected to the liquid inlet of the mixing box. The liquid outlet of the mixing box is connected to the branch water inlet pipe of the clothing treatment tub. In this way, the clothing treatment agent is mixed and diluted with the washing machine inlet water before being transported to the water supply flow path of each clothing treatment tub. This avoids the waste of clothing treatment agent caused by the high viscosity of the clothing treatment agent not being able to fully flow into the clothing treatment tub. The following is a further detailed description of the further optimization and specific implementation of the above-mentioned structural composition.

[0133]

Liquid storage box

[0134] The dispensing device includes a liquid storage box 4, which is used to add and store clothing treatment agents. The storage cavity formed within the liquid storage box 4 can be divided into multiple independent liquid storage chambers according to actual needs, facilitating the addition of various clothing treatment agents, such as detergent, softener, disinfectant, etc. The volume of each liquid storage chamber can also be determined based on the specific clothing treatment agent required. In this embodiment, the liquid storage box 4 is divided into two liquid storage chambers, respectively storing clothing treatment agent and softener.

[0135] like Figure 4a and 4bAs shown, in order to save the setting space of the dispensing device, the liquid storage box body 4 is preferably a flat and long structure, which is vertically arranged on the left or right side of the topmost clothing treatment barrel of the multi-barrel washing machine along the front and rear direction of the washing machine in a detachable insertion manner. On the one hand, it is conducive to solving the problem of insufficient setting space for the dispensing device of the multi-barrel washing machine. On the other hand, the clothing treatment agent can be transported to the clothing treatment barrel of the washing machine in a top-down manner, avoiding the problem of liquid accumulation in the pipeline when transporting from bottom to top. At the same time, it makes full use of the atmospheric pressure and the gravity of the clothing treatment agent itself, reduces the difficulty of dispensing, and reduces the technical requirements for the liquid extraction pump 3.

[0136] Preferably, the liquid storage box body 4 has a liquid storage box body front cover 43 and a liquid storage box body rear cover 44. For the convenience of description, we define the cover of the liquid storage box body 4 facing the front side of the washing machine as the front cover, the end face as the front face, the cover facing the rear side of the washing machine as the rear cover, the end face as the rear face, the two side faces connecting the front and rear end faces as the left and right side faces, and the two side walls as the left and right side walls. The so-called left and right are consistent with the left and right directions of the washing machine when the user looks at the washing machine from the front side.

[0137] The mounting box 5 is fixed to the washing machine's main frame 1; the liquid storage box 4 is removably mounted within the mounting box 5. The washing machine includes a door front cover. Preferably, the liquid storage box front cover 43 is mounted flush with the door front cover. When the liquid storage box 4 needs to be opened, the liquid storage box 4 can be ejected from the mounting box 5 by pressing the liquid storage box front cover 43 from the side of the door front cover, providing a comfortable user experience.

[0138] Preferably, the liquid storage box body 4 includes at least one installation cavity for accommodating clothing treatment agent; each installation cavity is matched with 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, and the cover body can be fixed to the liquid storage box body 4 through a hinge part, and the liquid injection port can be opened and closed by rotating the cover body around the fixed part; the cover body can also be a screw-on cover structure in which the cover body is completely separated from the liquid injection port when the liquid injection port is opened.

[0139] In this embodiment, the internal installation cavity of the liquid storage box body 4 is divided into two liquid storage cavities, one for adding softener and the other for adding detergent. Figure 4a and 4bAs shown, the internal mounting cavity of the liquid storage box body is divided into a first liquid storage chamber 451 and a second liquid storage chamber 452 along the length of the box body. Corresponding to these two liquid storage chambers, the liquid storage box body 4 is provided with a first liquid injection port 401, a second liquid injection port 402, and a first liquid storage box body liquid outlet 461 and a second liquid storage box body liquid outlet 462. The first liquid injection port 401 is used to add clothing treatment agent to the first liquid storage chamber 451, and the first liquid storage box body liquid outlet 461 is used to allow the clothing treatment agent in the first liquid storage chamber 451 to flow out of the first liquid storage chamber 451. The second liquid injection port 402 is used to add clothing treatment agent to the second liquid storage chamber 452, and the second liquid storage box body liquid outlet 462 is used to allow the clothing treatment agent in the second liquid storage chamber 452 to flow out of the second liquid storage chamber 452. Preferably, the first liquid injection port 401 and the second liquid injection port 402 are located on the left or right side wall of the liquid storage box body 4, and preferably, both are located at the upper position on the same side to facilitate operation and accommodate more clothing 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 liquid storage box body rear cover 44. This can facilitate the clothing treatment agent in the two sub-liquid storage chambers of the liquid storage box body 4 to be fully and conveniently extracted into the mixing liquid box 2 by the liquid pump 3 on the rear side thereof. In particular, it is more advantageous to facilitate the liquid connection between the liquid outlet of the liquid storage box body 4 and the liquid extraction port of the liquid extraction pump in a plug-in manner. Further optimized, the bottom edges of the two liquid storage chambers form a certain inclination angle toward their respective liquid outlets, and the cross-sectional width of the inlet side of each liquid storage chamber is greater than the width of the liquid outlet side to facilitate the flow of clothing treatment agent to the liquid outlet of the liquid storage box body, for cooperating with the liquid extraction port of the liquid extraction pump and outputting the clothing treatment agent.

[0140] Furthermore, this embodiment also preferably includes a one-way vent structure on the liquid storage box body 4 that allows external air to enter the liquid storage chamber in one direction. When adding clothing treatment agent to the liquid storage box body 4, the one-way vent structure restricts the liquid from flowing out from the inside. When the liquid in the liquid storage box body 4 decreases, the one-way vent structure allows external air to enter the liquid storage box body 4. The preferred one-way vent structure includes a first one-way vent valve 411 corresponding to the first liquid storage chamber 451, and a second one-way vent valve 412 corresponding to the second liquid storage chamber 452; that is, the first one-way vent valve 411 corresponds to the first liquid injection port 401, the first liquid storage chamber 451, and the first liquid storage box body liquid outlet 461; and the second one-way vent valve 412 corresponds to the second liquid injection port 402, the second liquid storage chamber 452, and the second liquid storage box body liquid outlet 462. The working principle of the one-way air valve is as follows: taking the first one-way air valve 411 as an example, when clothing treatment agent is added to the first liquid storage chamber 451, the first one-way air valve 411 allows outside air to enter the first liquid storage chamber 451, preventing the clothing treatment agent inside the first liquid storage chamber 451 from flowing out; when the clothing treatment agent inside the first liquid storage chamber 451 decreases, its internal pressure is lower than the external atmospheric pressure. Under the action of atmospheric pressure, the first one-way air valve 411 opens, and outside air enters the first liquid storage chamber 451, and the pressure inside and outside the first liquid storage chamber 451 remains consistent.

[0141] like Figure 4c Specifically, taking the first one-way vent valve 411 as an example, the one-way vent valve can be an integrally molded structure made of an elastic material. The liquid reservoir body 4 is provided with a mounting hole 413 for the one-way vent valve, which has a vent hole 414. The top end of the one-way vent valve is positioned within the mounting cavity of the liquid reservoir body 4, completely covering the vent hole. The rear end of the one-way vent valve is positioned outside the liquid reservoir body 4. When the lid is opened and laundry treatment agent is added to the liquid reservoir cavity through the liquid inlet, the one-way vent valve seals the mounting hole 413 and the vent hole 414, thereby preventing leakage of the laundry treatment agent. When the liquid pump 3 draws the laundry treatment agent from the liquid reservoir body 4, negative pressure is generated within the liquid reservoir body 4, causing the top end of the one-way vent valve to deform, exposing or partially exposing the vent hole, allowing air to enter the liquid reservoir body 4 from the outside. Preferably, the thickness of the one-way vent valve top gradually decreases from the center to the edge, facilitating air intake.

[0142] Further preferably, the liquid storage box body 4 is further provided with a handle 42 on both side walls in the thickness direction of the liquid storage box body 4 , and the handle 42 may be a through hole to facilitate taking out the liquid storage box body 4 .

[0143] like 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 of the liquid injection port, a first screw cover 813 of the liquid injection port, a second annular sealing ring 812 of the liquid injection port and a second screw cover 814 of the liquid injection port. The first annular sealing ring 811 corresponds to the first screw cover 813 of 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 screw cover 814 of the liquid injection port, and cooperates with the second liquid injection port 402 to seal the second liquid injection port 402.

[0144]

Installation box

[0145] like Figure 5a and 5b As shown, the dispensing device also includes a mounting box 5, which forms a mounting box cavity with an open front end for accommodating the liquid storage box 4. Preferably, the mounting box 5 includes a mounting box front cover 50, a mounting box left shell 51, a mounting box right shell 52, and a mounting box rear cover 53, forming a mounting box cavity for accommodating the liquid storage box 4. The mounting box front cover 50 includes a mounting box front cover body 501 and a mounting box front decorative cover 502; the mounting box rear cover 53 includes a mounting box rear cover upper body 531 and a mounting box lower body 532. The front opening of the mounting box front cover body 501 is a rectangular hole that matches the elongated rectangular cross-section of the liquid storage box 4, facilitating the insertion and ejection of the liquid storage box 4.

[0146] Preferably, a bracket is provided on the mounting box 5, and the liquid pump 3 is installed on the bracket.

[0147] <Motion control components: motion guide component + motion clamping limit component + pop-up / locking component + positioning component + detection component>

[0148] Preferably, in order to facilitate the liquid storage box body 4 to be detachably and push-pull arranged in the installation box body 5 and to 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 clamping limit component, a pop-up / locking component, and a positioning component.

[0149] <Motion Guide Component>

[0150] The motion guide assembly can be arranged between the upper position and / or the lower position between the mounting box body 5 and the liquid storage box body 4. In the position opposite to the guide assembly, a motion clamping limit assembly is provided at the upper position or the lower position of the mounting box body 5, which is used to stop the liquid storage box body 4 from popping out and control the stroke of the liquid storage box body 4 popping out.

[0151] In order to make the liquid storage box body 4 move smoothly and reduce noise when it is ejected or pushed relative to the installation box body 5, Figure 6aAs shown, the preferred motion guide assembly of this embodiment includes a guide groove 611 and a guide wheel assembly. The guide wheel assembly includes a guide wheel bracket 613 and a guide wheel 612. The guide groove 611 is provided below the liquid storage box body 4 (e.g., the bottom wall of the liquid storage box body 4) and is preferably arranged to fully cover the length of its lower end surface. The guide wheel bracket 613 is provided below the installation box body 5 (e.g., the bottom wall of the installation box body 5). The guide wheel 612 includes a plurality of guide wheels, which are arranged on the guide wheel bracket 613 according to a linear pattern. The guide groove 611 cooperates with the guide wheel 612. When the liquid storage box body 4 is pushed into or ejected from the installation box body 5, the liquid storage box body 4 performs a pushing or ejecting motion relative to the installation box body 5 under the cooperation of the guide groove 611 and the guide wheel 612.

[0152] <Motion clamping limit assembly>

[0153] In order to ensure that the liquid storage box body 4 moves smoothly when it is pulled out or pushed in relative to the mounting box body 5 and to accurately control the ejection stroke of the liquid storage box body 4, and to avoid the liquid storage box body 4 being directly separated from the mounting box body 5 due to the ejection distance being too large, this embodiment further preferably adds a motion pressing limiter component. Figure 6b 、 6c As shown in Figure 6d, the motion clamping limit assembly provided in this embodiment has a clamping wheel assembly 63, which includes a mounting seat 631, a compression spring 632, a clamping wheel bracket 633 and a clamping wheel 634; the mounting seat 631 is arranged at the upper position of the mounting box 5, and its structure is a hollow shell structure, and an installation space is formed inside it, and the compression spring 632, the clamping wheel bracket 633 and the clamping wheel 634 are arranged in sequence from top to bottom; the compression spring 632 provides other elastic force to the clamping wheel bracket 633, and the clamping wheel 634 is rotatably arranged on the clamping wheel bracket 633. The clamping wheel 634 can extend into the mounting box cavity of the mounting box 5 and rest against the liquid storage box body 4 to provide pressure to the liquid storage box body 4.

[0154] Further optionally, the mounting seat 631 is a barrel-shaped structure with one end open and the other end closed, with a first limiting groove 6311 or a first limiting hole formed on its sidewall along its axial direction; a limiting claw 6331 is provided on the top of the pressure wheel bracket 633, which slides and engages with the first limiting groove 6311 or the first limiting hole, allowing the pressure wheel bracket 633 to slide along the axial direction of the mounting seat 631. The mounting box 5 is provided with a mounting through hole, and the mounting seat 631 is fixed to the mounting box 5. The pressure wheel 634 extends through the mounting through hole into the mounting box cavity, and the rotation axis of the pressure wheel 634 is perpendicular to the installation direction of the liquid storage box body 4. When the liquid storage box body 4 is ejected or pushed into the installation box cavity of the installation box body 5, the pressure wheel 634 is pressed against the liquid storage box body 4 under the action of the compression spring. At the same time, the pressure wheel 634 rotates with the movement of the liquid storage box body 4, so that the liquid storage box body 4 moves smoothly along a fixed track, avoiding abnormal noise during the whole process.

[0155] Further optionally, the movement and compression limiting assembly further includes a second limiting groove 62, which is preferably semicircular in structure and is disposed above the liquid storage box body 4. When the liquid storage box body 4 is ejected from the mounting box 5 and moves forward, and the second limiting groove 62 is exactly below the pressure wheel 634, the pressure wheel 634 is engaged in the second limiting groove 62 under the action of the compression spring 632, preventing the liquid storage box body 4 from further ejecting, thereby controlling the ejection stroke of the liquid storage box body 4 and improving the user experience.

[0156] <Guide positioning component>

[0157] When the liquid storage box body 4 is pushed in, the liquid pump liquid extraction port and the liquid storage box body liquid outlet must be quickly connected and the positioning must be accurate. If the positioning accuracy is not high, the liquid pump liquid extraction port and the liquid storage box body liquid outlet cannot be connected, and the seal will not be tight. Figure 6b As shown, this embodiment also preferably provides a guide positioning component between the rear wall of the liquid storage box body 4 and the rear wall of the mounting box body 5. The guide positioning component is arranged between the rear wall of the liquid storage box body 4 and the rear wall of the mounting box body 5 along the movement direction of the liquid storage box body 4 pushing or popping out the mounting box body 5 mounting box cavity; the preferred guide positioning component includes a positioning column and a positioning hole. When the liquid storage box body 4 is pushed into the mounting box body 5, the positioning column and the positioning hole cooperate together to form the axial positioning of the mounting box body 5 and the liquid storage box body 4. On the one hand, the positioning hole and the positioning column are height-matched to complete the positioning, and on the other hand, the liquid extraction port of the liquid pump and the liquid outlet of the liquid storage box body can be quickly and accurately inserted and connected. Specifically, Figure 6b As shown, the positioning posts are located at the rear of the mounting box 5; the positioning holes are located at the rear of the liquid storage box body 4, matching the position and number of the positioning posts. This prevents the liquid storage box body 4 from rocking up and down, left and right, and ensures accurate positioning when the liquid storage box body 4 is locked to the mounting box 5. The specific positioning assembly includes a first positioning post 201, a second positioning post 202, a first positioning hole 641, and a second positioning hole 642. The positioning holes are located on the liquid storage box body rear cover 44; the positioning posts are located on the mounting box body rear cover 53. 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 mounting box 5, the two positioning holes cooperate with their corresponding positioning posts to ensure the accurate positioning of the liquid storage box body 4 within the mounting box 5.

[0158] Further preferably, a Hall sensor 742 is further provided on the mounting box 5, and a magnet 741 used in conjunction with the Hall sensor 742 is provided 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.

[0159] <Lock / Eject Assembly>

[0160] In order to realize the ejection or locking of the liquid storage box body 4, this embodiment is also provided with a locking / ejecting component, using which the user can release the ejecting mounting box body 5 by pressing the button on the liquid storage box body front cover 43 / the front cover.

[0161] <Lock / Eject Assembly - Implementation 1>

[0162] like Figure 7a 、 7b As shown in Figures 7c and 7d, the preferred locking / ejecting assembly includes a locking assembly and an ejecting assembly.

[0163] like Figure 7a As shown, the locking assembly 71 of this embodiment is disposed at the front ends of the liquid storage box body 4 and the mounting 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 buckle is disposed at the front end of the liquid storage box body 4, preferably one at the top and one at the bottom; the locking slot is disposed at the front end of the mounting box body 5, preferably one at the top and one at the bottom. 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 mounting box body 5, the locking buckle cooperates with the locking slot, and the liquid storage box body 4 is locked inside the mounting box body 5. In this embodiment, the locking buckle is an elastic element, which is preferably located at the upper and lower positions of the front end of the liquid storage box body 4; the locking slot is located at the upper and lower positions of 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 buckle is embedded in the locking slot to complete the locking; when the liquid storage box body 4 pops out of the installation box body 5, the release button 72 is pressed, the locking buckle deforms inward and disengages from the locking slot, and the liquid storage box body 4 pops out.

[0164] like Figure 7a As shown, the pop-up assembly 73 includes a release button 72, a rebound top piece 731, a spring 732 and a spring rail 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 rebound top piece 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 rail 733 is arranged on the rear cover 53 of the installation box body and protrudes toward the rear side, and the spring 732 is arranged inside the spring rail 733 and cooperates with the rebound top piece 731.

[0165] The ejection assembly works as follows: pressing the release button 72 disengages the locking buckle from the locking slot, releasing the liquid reservoir body 4. Releasing the release button 72 causes the compressed spring 732 to return to its original shape, releasing energy and acting on the resilient top member 731, ejecting the liquid reservoir body 4. To insert the liquid reservoir body 4 into the mounting box, the body needs to be manually pushed inward, the locking buckle engages the locking slot to complete the locking, and then released.

[0166] <Lock / Eject Assembly - Implementation 2>

[0167] like Figure 7c and 7d As shown, the preferred locking / ejecting assembly includes a mechanical lock and a rebound assembly, wherein:

[0168] The mechanical lock allows the user to lock or release the liquid storage box body 4 to the mounting box body 5 by a single press of the liquid storage box body front cover 43. Preferably, the mechanical lock includes: a lock 751 and a lock lock position 752. The lock 751 is provided on the mounting box body rear cover 53 or the liquid storage box body rear cover 44; the lock lock position 752 corresponds to the position of the lock 751 and is provided on the liquid storage box body rear cover 44 or the mounting box body rear cover 53. The lock 751 can be a lock with a wedge-shaped buckle, and the lock lock position 752 has a recessed hole that cooperates with the lock 751.

[0169] The pop-up assembly includes a release button 72, a rebound top piece 731, a spring 732 and a spring rail 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 rebound top piece 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 rail 733 is arranged on the rear cover 53 of the installation box body and protrudes toward the rear side, and the spring 732 is arranged inside the spring rail 733 and cooperates with the rebound top piece 731.

[0170] When the user presses the liquid storage box body 4, the buckle of the lock buckle 751 moves inward and disengages from the recessed hole. Under the action of the rebound spring 732, the rebound top member 731 uses its first end against the liquid storage box body rear cover 44 to pop out the liquid storage box body 4.

[0171]

Mixed liquid box

[0172] The dispensing device is also provided with a liquid mixing box, which is used to mix the clothes treating agent in the liquid storage box with the incoming water and then deliver it to the clothes treating barrel where the clothes treating agent needs to be added.

[0173] like Figure 2a 、 6bAs shown, the mixing box 2 is arranged on the rear cover of the mounting box, and a cavity is formed inside the mixing box for mixing the laundry treatment agent and the incoming water. Preferably, the mixing box 2 includes a rear cover 21 and a front cover 20, and the front cover 20 is mounted on the rear cover of the mounting box, and the rear cover 21 and the front cover 20 cooperate to form a cavity. The rear cover 21 of the mixing box is provided with a water inlet 214, a first liquid inlet 211 of the mixing box, a second liquid inlet 212 of the mixing box and a liquid discharge port 213; the water inlet 214 of the mixing box is connected to the water inlet pipe of the washing machine, and the water inlet pipe is provided with a water inlet control valve, such as a water inlet solenoid valve with on-off control, which is electrically connected to the main controller of the washing machine, and the water inlet amount of the mixing box 2 is controlled by controlling the water inlet solenoid valve; the liquid inlets 211 and 212 of the mixing box are plug-connected with the liquid outlet of the liquid pump, and are used to input the clothing treatment agent inside the liquid storage chamber into the mixing box; the liquid outlet 213 of the mixing box is connected to the three washing tubs of the washing machine, and a control valve is provided in each connecting pipe, such as a water inlet solenoid valve with on-off control, which is electrically connected to the main controller of the washing machine, and the clothing treatment amount input into each washing tub is controlled by controlling the water inlet solenoid valve. The liquid mixing box 2 is provided with a first through hole 221 and a second through hole 222 for the liquid pump to pass through, which facilitates the plug-in connection between the liquid pump and the liquid outlet of the liquid storage box body and reduces the space occupied by the dosing device.

[0174] The mixing box 2 is connected to the liquid pump 3 and the washing machine's water inlet pipe to mix the laundry treatment agent and deliver the mixed liquid to the washing machine's tub. The mixing box's discharge port 213 is connected to the branch water inlet pipes of each washing tub. In this way, the liquid pump extracts the laundry treatment agent from the liquid storage chamber and delivers it to the mixing chamber of the mixing box. Inside the mixing chamber, water from the main water inlet pipe mixes with the laundry treatment agent, diluting it through the branch water inlet pipes before being delivered to the water supply path of each washing tub, where it enters each washing tub.

[0175] like Figure 2b As shown, the working principle of the mixing box 2 is as follows: the washing machine main controller controls the operation of the liquid pump; the liquid pump transports the clothing treatment agent inside the liquid storage chamber to the mixing box 2; at the same time, the washing machine main controller controls the water inlet solenoid valve to open, and water enters the mixing box 2 from the water inlet pipe and mixes with the clothing treatment agent pumped into the mixing box 2; the clothing treatment agent is diluted, and the diluted clothing treatment agent flows out from the liquid outlet of the mixing box and enters each washing tub of the washing machine.

[0176]

Liquid pump

[0177] like Figure 3 As shown, the liquid extraction pump 3 is arranged at the rear of the mounting box 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. It is used to extract the clothing treatment agent in the liquid storage box body 4 for mixing. Preferably, a bracket is provided on the mounting box 5, and the liquid extraction pump 3 is installed on the bracket.

[0178] The liquid pump 3 includes a pump head 30 and a pump body front cover connected to the pump head 30. A liquid pump installation cavity connected to the liquid storage box body 4 is formed in the pump body front cover. The liquid pump installation cavity is provided with at least one liquid pump liquid extraction port, which is connected to the liquid outlet provided on the liquid storage box body 4; the liquid pump installation cavity is provided with at least one liquid pump outlet, which is connected to the clothing treatment barrel, and the connection can be through an infusion tube, or it can be connected to the mixing box 2 and then connected to the clothing treatment barrel; the design of the two liquid storage chambers of the liquid storage box body 4 is adapted, and the liquid pump installation cavity includes a first liquid pump cavity 311 and a second liquid pump cavity 312 The first chamber 311 of the liquid pump has a first liquid extraction port 331 and a first liquid outlet 321, while the second chamber 312 has a second liquid extraction port 332 and a second liquid outlet 322. The first chamber 311, first liquid outlet 321, and first liquid extraction port 331 of the liquid pump are in corresponding communication with the first liquid storage chamber 451 of the liquid storage chamber 4; the second chamber 312, second liquid outlet 322, and second liquid extraction port 332 of the liquid pump are in corresponding communication with the second liquid storage chamber 452 of the liquid storage chamber 4. The extraction port of the liquid pump is connected to the liquid outlet of the liquid storage chamber for extracting the laundry treatment agent from the liquid storage chamber; the liquid outlet of the liquid pump is connected to the liquid mixing box 2 for inputting the laundry treatment agent into the liquid mixing box 2.

[0179] [Plug-in liquid-tight connection structure between the liquid pump and the liquid storage box]

[0180] Preferably, the push-in and pop-up structure of the liquid storage box body 4 is adapted, and a plug-in structure is adopted between the liquid extraction port of the liquid pump and the liquid outlet of the liquid storage box body. The preferred plug-in structure forms a plug-in liquid sealing connection structure. Figure 8a and 8b As shown, the plug-in liquid sealing connection structure 83 is used to seal the liquid outlet of the liquid storage box body when the liquid storage box body 4 pops out of the installation box body 5. On the other hand, when the liquid storage box body 4 is pushed into the installation box body 5, it is used to seal the liquid outlet of the liquid storage box body and the liquid suction port pipe wall of the liquid suction pump to prevent the clothing treatment agent from leaking out.

[0181] Preferably, the liquid outlet of the liquid storage box body is an unenclosed tubular structure, forming a tubular valve body. Corresponding to the tubular valve body, the plug-in liquid-tight connection structure includes a needle valve structure coaxially arranged with the tubular valve body, comprising a needle valve, a needle valve plug, and a needle valve spring. Furthermore, preferably, a side sealing ring, a needle valve sealing ring, and a pump inlet pipe sealing ring are also provided. The needle valve cooperates with the tubular valve body to achieve a seal. The needle valve spring is sleeved on the front end of the needle valve to provide rebound pressure to seal the liquid storage chamber when the liquid storage box body 4 is ejected from the mounting box 5. The needle valve plug is disposed at the front end of the needle valve, with the needle valve spring pressed between the needle valve plug and the needle valve. The needle valve sealing ring is sleeved on the middle of the needle valve to achieve a seal between the needle valve and the valve body, preventing liquid leakage when the liquid storage box body 4 is ejected from the mounting box 5. The side sealing ring is disposed between the tubular valve body and the liquid outlet of the liquid storage box body to provide a seal between the tubular valve body and the liquid outlet of the liquid storage box body. The liquid pump sealing ring is arranged on the outer peripheral surface of the liquid pump liquid pumping tube to achieve sealing between the inner wall of the tubular valve body and the outer wall of the liquid pump liquid pumping tube when the liquid storage box body 4 is pushed into the installation box body 5 to prevent liquid leakage.

[0182] The present invention provides a corresponding number of plug-in sealing connection structures according to the number of liquid storage cavities inside the liquid storage box body 4. Taking two liquid storage cavities as an example, this embodiment provides two groups of plug-in sealing connection structures.

[0183] The first plug-in liquid-tight 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 sealing ring 841 of the liquid pump suction pipe. The second plug-in liquid-tight 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 sealing ring 842 of the liquid pump suction pipe. 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.

[0184] It should be noted that the two sets of plug-in liquid-sealed connection structures are preferably identical. Taking the first set as an example, the first tubular valve body 831 has a large inner diameter at one end and a small inner diameter at the other end, forming a tapered sealing surface at the transition between the large and small inner diameter sections. The first needle valve 839 has a small outer diameter near the liquid storage chamber and a large outer diameter near the liquid pump, and has an annular boss structure. The first needle valve 839 is disposed within 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 tapered sealing surface of the first tubular valve body 831; the first needle valve spring 837 is sleeved on the end with the small outer diameter of the first needle valve 839, with the two ends respectively connecting 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, the outer circumference of one end of the first tubular valve body 831 is provided with multiple slots, and the first needle valve plug 8311 is provided with multiple latches near the end of the first tubular valve body 831. During installation, the latches and slots cooperate to achieve a detachable connection, facilitating subsequent maintenance. The first tubular valve body 831 is sealed against the inner wall of the first liquid reservoir body's liquid outlet 461 by a first side sealing ring 833.

[0185] Correspondingly, the inner diameter of the liquid outlet of the liquid storage box body is a structure that is wide in the front and narrow in the back, there is a transition angle 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 clip that cooperates with the assembly hole is provided on the needle valve plug.

[0186] The principle of the plug-in liquid sealing connection structure is as follows: taking the first group 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 to approach the first needle valve plug 8311, the first needle valve spring 837 is compressed, and the first needle valve sealing ring 835 is away from the first needle valve due to the squeezing effect of the needle valve. The tubular valve body 831 has a conical sealing surface, and the first needle valve 839 is opened. The first liquid storage chamber 451 is connected to the first chamber 311 of the liquid pump, and the clothing treatment agent inside the first liquid storage chamber 451 enters the first chamber 311 of the liquid pump; at the same time, the outer wall of the first liquid suction port 331 of the liquid pump squeezes the sealing ring 841 of the first liquid suction port of the liquid pump, 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 chamber 451 and the first chamber 311 of the liquid pump are sealed from the outside world.

[0187] When the liquid storage box body 4 is popped out of the mounting box body 5, the first liquid suction port 331 of the liquid 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 closes to the first needle valve sealing ring 835. Under the extrusion effect, the first needle valve sealing ring 835 fits with 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.

[0188] It should be noted that, in this embodiment, the number of liquid inlets of the mixing liquid box and the number of liquid outlets of the liquid pump are both two, but the number of liquid inlets of the mixing liquid box and the number of liquid outlets of the liquid pump are not limited to this. They are specifically determined according to the number of liquid storage cavities of the liquid storage box body. The number of liquid storage cavities is consistent with the number of liquid outlets of the liquid pump, liquid outlets of the liquid pump, and liquid inlets of the mixing liquid box.

[0189] Liquid level detection circuit of liquid storage box

[0190] <Liquid level detection sensor seal assembly>

[0191] The dispensing component also includes a liquid level detection sensor sealing component, specifically a liquid level probe sealing component, which includes a liquid storage box liquid level probe sealing ring and a liquid pump liquid level probe sealing ring, which are respectively used to seal the installation ports of the liquid storage box body liquid level probe and the liquid pump liquid level probe.

[0192] like Figure 8a As shown, the liquid storage box body 4 is provided with a liquid level probe sealing assembly for sealing the liquid level probe installation hole.

[0193] The liquid level probe sealing assembly 82 of the liquid storage box includes multiple liquid level probe sealing rings. The present invention provides a corresponding number of liquid level probe sealing rings corresponding to the number of liquid level probes in the liquid storage box. For example, two liquid level probes are provided in this embodiment, and the structures of the two liquid level probe sealing rings are identical.

[0194] 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 installation port 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 installation port of the second liquid level probe 932 of the liquid storage box body.

[0195] like Figure 8c As shown, the liquid pump 3 is provided with a liquid level probe sealing assembly for sealing the installation hole of the liquid level probe of the liquid pump.

[0196] The liquid pump level probe sealing assembly includes multiple liquid pump level probe sealing rings. The present invention provides a corresponding number of liquid pump level probe sealing rings corresponding to the number of liquid pump level probes. For example, two liquid pump level probes are provided in this embodiment, and both have the same structure.

[0197] The first liquid level probe sealing ring 851 of the liquid pump corresponds to the first liquid level probe 941 of the liquid pump, and seals the installation port of the first liquid level probe 941 of the liquid pump; the second liquid level probe sealing ring 852 of the liquid pump corresponds to the second liquid level probe 942 of the liquid pump, and seals the installation port of the second liquid level probe 942 of the liquid pump.

[0198] <Separate conduction structure>

[0199] like Figure 9a and Figure 9b As shown, the separate conduction structure is used to form a liquid level detection circuit when the liquid storage box body 4 is pushed into the installation box body 5 and combined with the liquid level probe to detect the liquid level in the liquid storage cavity.

[0200] The separate conductive structure includes a contact metal sheet and a contact spring. The present invention provides a corresponding number of separate conductive structures corresponding to the number of liquid storage cavities in the liquid storage box body. Taking two liquid storage cavities as an example, this embodiment provides two sets of separate conductive structures, and the two structures are identical.

[0201] The first separate conductive structure includes a first contact metal sheet 911 and a first contact spring 921. The second separate conductive structure includes a second contact metal sheet 912 and a second contact spring 922. The first and second contact metal sheets 911 and 912 are located on the upper end of the liquid storage box rear cover 44, while the second and second contact springs 921 and 922 are located on the mounting box rear cover 53.

[0202] 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 contacts the first contact elastic sheet 921, and the other end of the first contact elastic sheet 921 is connected to the main controller of the washing machine.

[0203] The principle of the split conduction structure is as follows: Taking the first group as an example, when the liquid storage box 4 is ejected from the mounting box 5, the first contact metal sheet 911 separates from the first contact spring 921, disconnecting the split conduction structure. When the liquid storage box 4 is pushed into the mounting box 5 and locked, the first contact metal sheet 911 contacts the first contact spring 921, connecting the split conduction structure. This split conduction structure eliminates the need for plugging and unplugging, has a large contact range, and allows for a certain degree of assembly error. This effectively avoids the risk of deformation and failure of the plug-in structure due to large assembly errors, achieves accurate transmission of liquid level electrical signals, improves assembly efficiency, and reduces assembly costs.

[0204] <Liquid level detection circuit>

[0205] like Figure 9a and Figure 9b As shown, the liquid level detection probe is used to detect the liquid level of the liquid storage box body, and preferably includes a liquid storage box body liquid level probe and a liquid pump liquid level probe, both of which include multiple liquid level probes. The present invention sets a corresponding number of liquid storage box body liquid level probes and liquid pump liquid level probes according to the number of liquid storage cavities inside the liquid storage box body. Taking two liquid storage cavities as an example, this embodiment sets two groups of liquid storage box body liquid level probes and two groups of liquid pump liquid level probes, and the two groups have the same structure.

[0206] The two sets of liquid level probes for the liquid reservoir body include a first liquid level probe 931 and a second liquid level probe 932. The two sets of liquid pump level probes include a first liquid level probe 941 and a second liquid level probe 942. Taking the first set as an example, the first liquid level probe 931 is mounted on the rear cover 44 of the liquid reservoir body and is used to detect the level of the laundry treatment agent. The first liquid level probe 941 has one end mounted on the first liquid pump chamber 311 and the other end electrically connected to the washing machine main controller for detecting the level of the laundry treatment agent.

[0207] It should be noted that the liquid level probe of the liquid storage box and the liquid level probe of the liquid pump are both shorter at one end in the liquid storage cavity or the liquid pump cavity to avoid the influence of bubbles on the liquid level detection accuracy.

[0208] The separate conductive structure and the liquid level detection probe constitute a liquid level detection path: taking the first group as an example, the washing machine main controller, the first contact spring 921, the first contact metal sheet 911, the first liquid level probe 931 of the liquid storage box body and the first liquid level probe 941 of the liquid pump constitute the liquid level detection circuit of the first liquid storage chamber 451.

[0209] like Figure 9c As 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 separate conductive structure is separated, the plug-in liquid sealing 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 separate conductive structure is contacted and connected, and the plug-in liquid sealing connection structure is connected, (1) if the liquid level in the liquid storage chamber is higher than the position of the liquid level probe, the liquid level detection circuit is closed, and the washing machine main controller does not send a signal; (2) if the liquid level in the liquid storage chamber is lower than the position of the liquid level probe, the liquid level detection circuit is disconnected, and the washing machine main controller sends a low liquid level signal.

[0210] Example 2 Multi-barrel washing machine

[0211] This embodiment provides a multi-tub washing machine comprising a washing device, the aforementioned dispensing device, and an integrated waterway structure. The washing device comprises multiple laundry tubs, with the dispensing device positioned to the side of the topmost laundry tub. Specifically, the washing device includes at least one laundry tub, which may be a combination of multiple tubs with different laundry processing functions, arranged from top to bottom, but preferably at least one of which has a washing function. The integrated waterway structure is connected to the washing machine's water inlet piping and the dispensing device to precisely control the flow of water and laundry treatment agent entering the laundry tub.

[0212] <Integrated waterway structure>

[0213] like Figure 10a and 10bAs shown, the integrated water channel structure is arranged between the delivery component and the washing barrel of the multi-barrel washing machine, and is used to optimize the internal water channel structure of the washing machine, including a four-way structure, a flow channel structure, a gating structure and an exhaust structure. The four-way structure has a liquid inlet and multiple liquid outlets; the flow channel structure has multiple flow channels; the gating structure has multiple liquid inlets and multiple liquid outlets; the liquid outlets of the four-way structure, the number of flow channels of the flow channel structure, the number of liquid inlets of the gating structure, and the number of liquid outlets correspond to the number of clothing processing barrels of the washing machine. Taking three washing barrels 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 gating structure are both three.

[0214] Preferably, the integrated water channel structure is a box body structure, and the integrated water channel structure is a water box, which has a box body and a box cover. The box body is formed with multiple parallel main channels on the side that cooperates with the box cover, and the box cover is formed with a secondary channel that cooperates with the main channel on the side that cooperates with the box body; the main channel and the secondary channel constitute the channel structure.

[0215] Preferably, 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 box; the flow channel structure has an outlet connected to the water inlet pipe of the washing barrel of the multi-barrel washing machine.

[0216] Preferably, the four-way structure liquid outlet has the same number as the gate structure liquid inlet, the four-way structure liquid inlet is connected to the mixing box liquid outlet, and the four-way structure liquid outlet is connected to the gate structure liquid inlet, to achieve the diversion of the liquid discharged from the mixing box and input the clothing treatment agent into the gate structure.

[0217] Preferably, at least one drain valve is provided on the outlet side of the gating structure, and the number of drain valves is consistent with the number of liquid outlets of the gating structure; the liquid inlet of the gating structure is connected to the liquid outlet of the four-way structure, and the liquid outlet of the gating structure, the drain valve and the water inlet pipe of the washing barrel of the multi-barrel washing machine are connected in sequence to control the amount of detergent entering the washing barrel of the multi-barrel washing machine.

[0218] Preferably, the integrated water channel structure has at least one water inlet valve, and the number of water inlet valves is consistent with the number of flow channels in the flow channel structure; the water inlet valve is arranged in the water inlet pipe of the washing machine and is connected to the flow channel inlet or the mixing box water inlet, and is used to control the amount of water entering the washing barrel of the multi-barrel washing machine or the mixing box.

[0219] Preferably, the integrated water channel structure has at least one water inlet valve, and the number of water inlet valves is consistent with the number of flow channels in the flow channel structure; the water inlet valve is arranged in the water inlet pipe of the washing machine, and is connected to the flow channel inlet or the water inlet of the mixing box, for controlling the amount of water entering the washing barrel or the mixing box of the multi-barrel washing machine; the box body has a drain valve fixing part for fixing the drain valve.

[0220] Specifically, the four-way structure 133 includes a four-way structure liquid inlet 1330, a four-way structure first liquid outlet 1331, a four-way structure second liquid outlet 1332 and a four-way structure third liquid outlet 1333; 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 drain valve group, including a first drain valve, a second drain valve and a third drain valve; the drain valve group is fixed on the drain valve group fixing part 134. The exhaust structure 135 is arranged at the top of the corresponding flow channel, including 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 an 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.

[0221] In this embodiment, the washing tub water inlet pipes include four: the main tap water inlet pipe is connected to the water inlet of the water inlet valve assembly 11; the first water inlet valve outlet is connected to the first flow channel inlet 1321, and the first flow channel outlet 1311 is connected to the first washing tub water inlet pipe; the second water inlet valve outlet is connected to the second flow channel inlet 1322, and the second flow channel outlet 1312 is connected to the second washing tub water inlet pipe; the third water inlet valve outlet is connected to the third flow channel inlet 1323, and the third flow channel outlet 1313 is connected to the third washing tub water inlet pipe; the fourth water inlet valve outlet is connected to the mixing box water inlet 214 via the mixing box water inlet pipe 104;

[0222] The liquid outlet 213 of the mixing box is connected to the liquid inlet of the four-way structure through the liquid outlet pipe 105 of the mixing box, the first liquid outlet 1331 of the four-way structure is connected to the first liquid inlet of the gating structure, the first liquid outlet of the gating structure is connected to the first liquid discharge valve, the first washing bucket liquid inlet pipe 1011, the first washing bucket water inlet adapter 1012, and the first washing bucket liquid inlet hose 1013 in sequence; the second liquid outlet 1332 of the four-way structure is connected to the second liquid inlet of the gating structure, the second liquid outlet of the gating structure is connected to the second liquid discharge valve and the second washing bucket liquid inlet hose 1021 in sequence; the third liquid outlet of the four-way structure is connected to the third liquid inlet of the gating structure, the third liquid outlet of the gating structure is connected to the third liquid discharge valve and the fourth flow channel liquid inlet in sequence, and the fourth flow channel liquid outlet 1373 is connected to the third washing bucket liquid inlet pipe 1032.

[0223] The working principle of the integrated water channel structure is as follows: taking the first washing tub 101 as an example, tap water passes through the first water inlet solenoid valve to the first flow channel 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;

[0224] The integrated waterway structure operates as follows: Taking the first washing tub 101 as an example, tap water flows through the fourth water inlet solenoid valve to the mixing box 2. The clothing treatment agent then flows from the liquid storage chamber through the liquid pump 3 into the mixing box 2. The water flows from the mixing box outlet through the mixing box outlet pipe to the inlet of the four-way structure. The water then flows through the four-way structure outlet to the gate structure 12, then through the first drain valve and the first washing tub inlet hose 1011 to the first washing tub 101. The amount of clothing treatment agent entering the first washing tub 101 can be controlled by controlling the first drain valve.

[0225] In this embodiment, three laundry processing tubs are provided, which are arranged from top to bottom. The first and third ones are drum-type washing machines, and the second one is a drawer-type washing tub.

[0226] 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 form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0227] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0228] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0229] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0230] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dispensing assembly for a washing machine, characterized by: The invention comprises a liquid storage component, a liquid pump and a liquid mixing box, wherein the liquid storage component comprises: A liquid storage box body, wherein the liquid storage box body is provided with a liquid storage cavity for storing the clothes treating agent; The mounting box forms a mounting cavity for mounting the liquid storage box body, and the mounting cavity is provided with an opening for the liquid storage box body to be pushed into or ejected from the mounting cavity; The liquid storage box body is movably arranged in the installation cavity, and can be ejected from the installation cavity or locked in the installation cavity by pressing the front end surface of the liquid storage box body or a button on the front end surface; The delivery assembly further includes a motion control assembly, which is disposed between the installation box and the liquid storage box body and is used to limit and position the liquid storage box body when it is pushed into or ejected from the installation cavity.

2. The delivery component according to claim 1, wherein: The motion control component includes a motion guide component, a motion pressing and limiting component, a pop-up component, a locking component, a guide and positioning component, and a detection component.

3. The delivery component according to claim 1, wherein: The motion control component includes a motion clamping limit component, and the motion clamping limit component has a clamping wheel assembly, and the clamping wheel assembly is arranged between the top wall of the mounting box body and the top wall of the liquid storage box body, wherein the clamping wheel assembly is arranged on the top wall of the mounting box body, and includes a mounting seat, a compression spring, a clamping wheel bracket and a clamping wheel; the mounting seat is arranged on the top wall of the mounting box body, and its structure is a hollow shell structure, and an installation space is formed inside the hollow shell structure, and the compression spring, the clamping wheel bracket and the clamping wheel are arranged in sequence from top to bottom; the compression spring provides elastic force to the clamping wheel bracket, and the clamping wheel is rotatably arranged on the clamping wheel bracket, and the clamping wheel can extend into the mounting cavity of the mounting box body and abut against the liquid storage box body to provide pressure to the liquid storage box body.

4. The delivery component according to claim 3, wherein: The mounting seat is a barrel-shaped structure with one end open and the other end closed, and a first limiting groove or a first limiting hole is provided on the side wall of the barrel-shaped structure along the axial direction of the barrel-shaped structure; a limiting claw is provided on the top of the pressure wheel bracket, and the limiting claw slides and engages into the first limiting groove or the first limiting hole, so that the pressure wheel bracket can slide along the axial direction of the mounting seat.

5. The delivery assembly according to claim 4, wherein: The mounting box body is provided with a mounting through hole, the mounting seat is fixed to the mounting box body, the pressure wheel extends into the mounting cavity through the mounting through hole, and the rotation axis of the pressure wheel is perpendicular to the mounting direction of the liquid storage box body; when the liquid storage box body is pushed in or popped out in the mounting cavity of the mounting box body, the pressure wheel is pressed against the liquid storage box body under the action of the compression spring, so that the liquid storage box body moves smoothly.

6. The delivery assembly according to claim 5, wherein: The dynamic pressure limit assembly also includes a second limit groove, which is a semicircular structure and is arranged above the liquid storage box body; when the liquid storage box body pops out of the mounting box body and moves forward, and the second limit groove is just below the pressure wheel, the pressure wheel is embedded in the second limit groove under the action of the compression spring, preventing the liquid storage box body from continuing to pop out, so that the pop-up stroke of the liquid storage box body is controlled.

7. The delivery assembly according to claim 3, wherein: The plurality of pressure wheel assemblies are provided, and the plurality of pressure wheel assemblies are distributed along the moving direction of the liquid storage box body, and the plurality of pressure wheel assemblies are distributed on two opposite sides of the liquid storage box body.

8. The delivery component according to claim 1, wherein: The motion control assembly also includes a guide 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 movement direction of the liquid storage box body being pushed into or popped out of the installation cavity. The guide positioning assembly includes a positioning column and a positioning hole. When the liquid storage box body is pushed into the installation box body, the positioning column and the positioning hole cooperate together to form axial positioning of the installation box body and the liquid storage box body.

9. The delivery assembly according to claim 8, characterized in that: 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 column is a positioning column 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 cooperates with the positioning column along the axial direction.

10. The delivery assembly according to claim 1, characterized in that: The motion control assembly also includes a motion guide assembly, which is arranged between the top wall and / or bottom wall between the installation box and the liquid storage box body, the motion guide assembly includes a guide groove and a guide wheel assembly, the guide wheel assembly includes a guide wheel bracket and a guide wheel, the guide groove is arranged in the length direction of the top wall and / or bottom wall of the liquid storage box body along the movement direction of the liquid storage box body; the guide wheel bracket is correspondingly arranged on the top wall and / or bottom wall of the installation box body; the guide wheel is arranged on the guide wheel bracket in a linear pattern to cooperate with the guide groove; when the liquid storage box body is pushed into or popped out of the installation box, the guide groove and the guide wheel cooperate to guide the pushing or popping movement of the liquid storage box body relative to the installation box body.

11. The delivery assembly according to claim 10, wherein: The length of the guide groove corresponds to the length of the liquid storage box body; the cross section of the guide groove is U-shaped.

12. The delivery assembly according to claim 1, characterized in that: The motion control assembly also includes a locking assembly, which is arranged at the front ends of the liquid storage box body and the mounting 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 mounting box body, and the positions of the two correspond to each other; when the liquid storage box body is pushed into the mounting box body, the locking buckle cooperates with the locking slot to lock the liquid storage box body in the mounting cavity.

13. The delivery assembly according to claim 12, 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 embedded in the locking slot to complete the locking. When the liquid storage box body pops out of the installation box body, under the action of external force, the locking buckle is deformed inward and disengaged from the locking slot, and the liquid storage box body pops out.

14. The delivery assembly according to claim 1, characterized in that: The motion control assembly also includes a pop-up assembly, 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 the release button is released, the compressed spring returns to its original shape and releases energy, and acts on the rebound top piece, and the liquid storage box body automatically pops out; 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.

15. The delivery assembly according to claim 1, characterized in that: The liquid storage assembly includes a locking assembly, which 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 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.

16. The delivery assembly according to claim 15, characterized in that: The lock buckle is a lock buckle with a wedge-shaped buckle, and a concave hole that cooperates with the lock buckle is provided on the locking position of the lock buckle.

17. The delivery assembly according to claim 16, characterized in that: The lock buckle and the lock buckle locking position are configured as follows: when a user presses the front end of the liquid storage box body to push the liquid storage box body into the installation box body, the lock buckle is embedded in the concave 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 lock buckle moves inward and disengages from the concave hole of the lock buckle locking position, and under the action of the spring of the pop-up assembly, the rebound top member pops the liquid storage box body out of the installation cavity.

18. The delivery assembly according to claim 17, characterized in that: The liquid storage component also includes a position detection component, which has a position sensor, which is arranged on the installation box body, and a magnet used in conjunction with the position sensor is provided on the liquid storage box body; the position sensor and the magnet are used together to detect whether the liquid storage box body is installed in place.

19. The delivery component according to any one of claims 1 to 18, characterized in that: The liquid storage box body is further provided with through holes formed on both side walls in the thickness direction of the liquid storage box body, and the through holes serve as handles.

20. The delivery component according to any one of claims 1 to 18, characterized in that: The liquid storage box body is a flat and long structure and is vertically arranged along the front and rear direction of the washing machine.

21. The delivery component according to any one of claims 1 to 18, wherein: The liquid storage box body is divided into at least two liquid storage chambers along the length direction of the liquid storage box body.

22. The delivery component according to any one of claims 1 to 18, characterized in that: The liquid storage box body is also provided with a one-way ventilation structure that allows external air to enter the liquid storage cavity in one direction.

23. The delivery assembly according to claim 22, characterized in that: The one-way ventilation structure is a one-way ventilation valve, which is an integrally formed structure made of elastic material. The liquid storage box body is provided with an assembly hole for the one-way ventilation valve, 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 the top end completely covers the ventilation hole, and 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 clothing treatment agent is added into the liquid storage cavity through the liquid feeding port, the one-way ventilation valve seals the assembly hole and the ventilation hole, thereby limiting the leakage of the clothing treatment agent; when the liquid pump extracts the clothing treatment agent from the liquid storage box body, negative pressure is formed in the liquid storage box body, the top end of the one-way ventilation valve is deformed, so that the ventilation hole is exposed or partially exposed, so that the atmosphere can enter the liquid storage box body from the outside.

24. The delivery assembly according to claim 23, characterized in that: The thickness of the one-way vent valve gradually decreases from the center to the edge of the top end.

25. The delivery assembly according to any one of claims 1 to 18, characterized in that: The liquid storage box body is detachably and elastically arranged in the installation cavity.

26. The delivery component according to any one of claims 1 to 18, characterized in that: The liquid outlet of the liquid storage box body is connected to the liquid extraction port of the liquid extraction pump in a plug-in manner.

27. The delivery assembly according to claim 26, wherein: The liquid extraction pump is arranged at the rear of the installation box, and is connected to the liquid storage cavity of the liquid storage box body on the one hand, and is connected to the liquid mixing box on the other hand, and is used to extract the clothing treatment agent in the liquid storage box body and send it into the liquid mixing box to mix with the feed water; the liquid mixing box is connected to the liquid extraction pump on the one hand, and is connected to the water inlet pipe of the washing machine on the other hand, so as to send the diluted clothing treatment agent to the washing tub of the washing machine.

28. A multi-barrel washing machine, which is provided with multiple clothing treatment barrels from top to bottom, and a feeding assembly according to any one of claims 1 to 26 is provided on one side of the clothing treatment barrel at the top, and clothing treatment agent is fed from top to bottom into the clothing treatment barrel to which clothing treatment agent is required.

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