An additive dispensing device and a washing machine

Abstract

This invention provides an additive dispensing device, comprising a turntable rotatable around a center. The turntable's internal hollow chamber is divided into multiple relatively independent liquid storage chambers for additive storage. Each liquid storage chamber has an outlet, and each outlet is equipped with a one-way valve for closing the outlet under normal conditions and opening it under the action of a connecting joint. By configuring the dispensing device as a rotatable turntable structure, this invention achieves the effect of controllable switching between dispensing additives contained in different liquid storage chambers integrated on the turntable, thereby achieving the purpose of selectively dispensing different types of additives from different chambers. This invention also discloses a washing machine equipped with the aforementioned additive dispensing device.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically relating to an additive dispensing device that allows for the switching of various clothing processing additives, and also to a washing machine equipped with the aforementioned additive dispensing device. Background Technology

[0002] As people's living standards improve, washing machines are generally equipped with a dispensing device for adding different additives. This device has a water dispensing channel that connects to the washing drum and other water-using components of the appliance. The device also includes a storage chamber for the additives, which is connected to the water dispensing channel. A suction mechanism in the water dispensing channel draws the additives stored in the storage chamber into the channel. Then, the additives are flushed by the incoming water flowing through the channel before being dispensed into the washing drum, thus dispensing the additives.

[0003] Because existing additives encompass many categories, such as various detergents, softeners, fabric softeners, and fragrances, dispensing devices require separate dispensing lines with suction devices for each type of additive when they need to be dispensed separately. This results in complex water circuitry and increased costs for the dispensing system.

[0004] Meanwhile, in existing technologies, electromagnetic control valves are generally installed on different water lines of the dispensing device. These valves use electromagnetic control to open and close a water line, thereby controlling the flow of water between different storage chambers within the dispensing device. Commonly used electromagnetic control valves typically keep the water line normally open or normally closed when not energized; however, when the electromagnetic switching valve is energized, it switches the water line to another operating condition: normally closed or normally open. This type of switching valve in existing technology can only achieve individual on / off control of a water line, and due to the relatively complex structure of the aforementioned electromagnetic switching valve, the overall structure of the dispensing device is bulky and large.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an additive dispensing device to achieve the purpose of freely switching the dispensing of different types of additives.

[0007] To achieve the above-mentioned objectives, the basic concept of the technical solution adopted by this invention is as follows:

[0008] The present invention provides an additive dispensing device, including a turntable that can rotate around a center. The hollow chamber inside the turntable is divided into multiple relatively independent liquid storage chambers for storing additives. Each liquid storage chamber is provided with a liquid outlet. A one-way shut-off valve is provided at the liquid outlet for closing the liquid outlet under normal conditions and opening the liquid outlet under the action of the docking joint.

[0009] Furthermore, the hollow cavity inside the turntable is provided with multiple dividing ribs arranged along different radial directions. The dividing ribs divide the hollow cavity of the turntable into multiple fan-shaped liquid storage chambers, and each fan-shaped liquid storage chamber is provided with a liquid outlet located on the peripheral wall of the turntable.

[0010] Furthermore, a communicating vessel is provided on the outside of the turntable. The communicating vessel has an inlet connector and an outlet connector that are connected by an internal flow channel. The inlet connector is opened along the radial direction of the turntable and toward the turntable. The inlet connector of the communicating vessel and the outlet of each liquid storage chamber are all located in the same height section of the turntable.

[0011] Furthermore, the turntable is movably mounted on the additive dispensing device relative to the communicating vessel. The turntable has a second position that separates the peripheral wall from the inlet joint of the communicating vessel, and a first position that connects the liquid outlet on the peripheral wall to the inlet joint of the communicating vessel.

[0012] Furthermore, a rotating shaft extending axially is provided at the center of the turntable. At least one end of the rotating shaft is directly or via a transmission structure connected to a rotary motor. The rotary motor drives the turntable to rotate and is used to adjust the rotational position of the turntable.

[0013] Furthermore, the turntable's shaft is movably mounted on the slide rail to control the turntable's movement between the first and second positions.

[0014] When the turntable is in the first position, the rotating shaft is directly engaged with the output end of the rotary motor, or through a transmission structure, to control the rotation of the turntable around the shaft and adjust its orientation;

[0015] When the turntable is in the second position, the turntable moves to the communicating vessel, and the liquid outlet on the outer periphery of the turntable, facing the corresponding direction, is connected to the inlet connector of the communicating vessel.

[0016] Furthermore, the one-way shut-off valve includes a valve core located on the side of the outlet facing the inside of the storage chamber. The outer circumferential dimension of the valve core is larger than any cross-sectional area of ​​the outlet. The valve core is connected to the inner wall of the storage chamber via an elastic element. The elastic element applies an elastic force to the valve core, moving it from the inside of the storage chamber to the outside, thereby pushing the valve core to block the outlet from the inside out.

[0017] Preferably, the outlet is a constricted opening with a radial dimension that gradually narrows from the inside to the outside, and the valve core is spherical. The radial dimension of the spherical valve core is at least greater than the radial dimension of the smallest end of the outlet and less than the radial dimension of the largest end of the outlet.

[0018] Furthermore, the inlet joint of the communicating vessel is provided with a push rod that is coaxially arranged and protrudes from the inlet joint; when the communicating vessel moves close to the liquid storage chamber, the push rod extends into the liquid outlet and pushes the valve core of the one-way shut-off valve at the liquid outlet to move into the liquid storage chamber, thus connecting the communicating vessel and the liquid storage chamber.

[0019] Furthermore, it also includes a water delivery channel with a suction port that is connected to the outlet connector of the communicating vessel; the water delivery channel is equipped with a suction device to create a negative pressure at the suction port, thereby drawing the additive in the connected storage chamber into the water delivery channel from the suction port.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0021] This invention, by setting the dispensing device as a rotatable turntable structure, achieves the effect of controllable switching of the dispensing of additives contained in different liquid storage chambers integrated on the turntable, thereby achieving the effect of controllable switching of the dispensing of additives of different types and in different chambers; at the same time, because one-way shut-off valves are set at the outlet of each liquid storage chamber, the outlet of each liquid storage chamber on the turntable can be controlled to open and close, thereby achieving the purpose of controllable switching of the dispensing of additives in different chambers.

[0022] The present invention also provides a washing machine equipped with any of the additive dispensing devices described above.

[0023] At the same time, the present invention has a simple structure, a concise method, and significant effects, making it suitable for widespread use.

[0024] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0026] Figure 1 This is a schematic block diagram of the additive dispensing device when the turntable is in the first position in the embodiment of the invention;

[0027] Figure 2 This is a schematic block diagram of the additive dispensing device when the turntable is in the second position in the embodiment of the invention;

[0028] Figure 3This is a schematic diagram of the cross-sectional structure of the turntable in an embodiment of the present invention;

[0029] Figure 4 When the turntable is in the first position in this embodiment of the invention Figure 3 A magnified structural diagram at point A;

[0030] Figure 5 When the turntable is in the second position in this embodiment of the invention Figure 3 An enlarged structural diagram of point A.

[0031] Key components in the diagram: 1. Housing; 2. Turntable; 3. Communicating vessel; 4. Water inlet channel; 5. Suction device; 6. Rotary motor; 7. Slide rail; 8. Telescopic rod; 21. Liquid storage chamber; 22. Liquid outlet; 23. Rotating shaft; 24. Separating rib; 25. One-way shut-off valve; 251. Valve core; 252. Elastic element; 31. Inlet connector; 32. Outlet connector; 33. Push rod; 61. First transmission gear; 62. Second transmission gear; 81. Sleeve.

[0032] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] like Figures 1 to 5As shown in the figure, an additive dispensing device is also introduced in this embodiment of the invention, which includes a shell 1, which can be any structural form; preferably, the shell 1 adopts a shell structure with an internal hollow cavity, so that components such as the turntable and water channel are installed in the internal cavity, which can realize the anti-collision of each component of the dispensing device and the compactness of the lifting device.

[0037] like Figures 1 to 5 As shown in the embodiment of the invention, a turntable 2 is installed on the housing 1 of the additive dispensing device. The hollow chamber inside the turntable 2 is divided into multiple relatively independent liquid storage chambers 21, each of which can be used to store additives. Of course, the additives stored in each liquid storage chamber 21 in this application can be of different types, so as to achieve the effect of controllable switching between multiple types of additives. Additives of the same type can also be stored in different liquid storage chambers 21 to achieve backup storage of a single type of additive, increase the amount of additives stored, and thus avoid the situation where insufficient additives affect the clothing treatment effect during the operation of the washing machine. Furthermore, the additives stored in each liquid storage chamber 21 of the additive dispensing device in this application can be any or a combination of existing additives with existing clothing treatment functions, such as detergents, fabric softeners, rinsing agents, and disinfectants.

[0038] like Figures 1 to 5 As shown in the embodiment of the present invention, each liquid storage chamber 21 on the turntable 2 is provided with a liquid outlet 22, so that the additives stored in the liquid storage chamber 21 can be dispensed outward from the liquid outlet 22; at the same time, a one-way shut-off valve 25 is provided at the liquid outlet 22, which is normally closed and opens under the action of the communicating vessel, so that each liquid storage chamber 21 of the dispensing device can open the liquid outlet 22 when the additive needs to be dispensed, and close the liquid outlet 22 under normal conditions to form a container for the corresponding storage of the additive.

[0039] This invention achieves the effect of controllable switching of different liquid storage chambers integrated on the turntable by setting the dispensing device as a rotatable turntable structure; at the same time, since one-way shut-off valves are set at the liquid outlet of each liquid storage chamber, the liquid outlet of each liquid storage chamber on the turntable can be opened and closed in a controllable manner, thereby achieving the purpose of controllable switching of additives in different chambers.

[0040] In this embodiment of the invention, the turntable 2 can be any shape; preferably, in order to improve the rotational stability of the turntable 2, the turntable 2 can be set as a disc-shaped or cylindrical structure with a certain thickness, and the turntable 2 rotates around the center line of the disc-shaped or cylindrical structure, so as to further improve the balance during the rotation of the turntable 2.

[0041] like Figure 3As shown in the embodiment of the invention, the hollow cavity inside the disc-shaped or cylindrical turntable 2 is provided with multiple dividing ribs 24 extending along different radial directions. One end of each dividing rib 24 converges at the center of the turntable, and the other end connects to the outer peripheral sidewall of the turntable 2. Each dividing rib 24 divides the space on both sides, thereby dividing the hollow cavity of the turntable 2 into multiple fan-shaped, independent liquid storage chambers 21. Preferably, the dividing ribs 24 in the hollow cavity of the turntable 2 are evenly arranged at equal intervals to ensure that the volume of each liquid storage chamber 21 is equal.

[0042] like Figure 3 As shown in the embodiment of the present invention, each sector-shaped liquid storage cavity 21 is provided with a liquid outlet 22 located on the outer peripheral side wall of the turntable 2, and the liquid outlet 22 of each sector-shaped liquid storage cavity 21 is opened on the arc-shaped side wall; preferably, the liquid outlet 22 is located in the middle of the arc-shaped side wall in the circumferential direction of the turntable 2 and at the bottom in the axial direction of the turntable 2, so as to improve the additive dispensing rate of the liquid outlet 22 and reduce the occurrence of problems such as some additives in the liquid storage cavity 21 being unable to be dispensed.

[0043] like Figure 1 and Figure 2 As shown in the embodiment of the present invention, a communicating vessel 3 is provided on the outside of the turntable 2. The communicating vessel is fixedly installed on the housing 1 and located on one side of the turntable 2. The communicating vessel 3 has an inlet connector 31 and an outlet connector 32 connected by an internal flow channel. The inlet connector 31 is opened along the radial direction of the turntable and toward the turntable 2. The inlet connector 31 of the communicating vessel 3 and the outlet 22 of each liquid storage chamber 21 are all located in the same height section of the turntable 2, so that the communicating vessel 3 and each liquid storage chamber 21 are matched, and the communicating vessel 3 can be selectively connected to the outlet 22 of each liquid storage chamber 21.

[0044] like Figures 1 to 5 As shown, in this embodiment of the invention, the turntable 2 is movably mounted in the housing 1 of the additive dispensing device relative to the communicating vessel 3. The turntable 2 has a first position that separates its peripheral wall from the inlet connector 31 of the communicating vessel 3 (e.g., Figure 1 (as shown), and the second position where the liquid outlet 22 on the peripheral wall is connected to the inlet connector 31 of the communicating vessel 3 for conduction (as shown). Figure 2 (As shown).

[0045] like Figure 1 and Figure 2As shown in the embodiment of the present invention, the dispensing device further includes a dispensing water channel 4, which is disposed inside the housing 1 of the dispensing device. The inlet and outlet of the dispensing water channel 4 extend out of the housing 1. The inlet is connected to an external water supply source, the outlet and water-using components such as the washing machine tub; thus, the dispensing water channel 4 is used for water supply flow. The dispensing water channel 4 is also provided with a suction port, which is connected to the outlet connector 32 of the communicating vessel 3, so that the liquid storage chamber 21 can be connected to the suction port in the middle of the dispensing water channel 4 through the communicating vessel 3, so that the additive can flow into the dispensing water channel 4 from the suction port along the above path, and be flushed out of the dispensing device with the flowing water, thereby realizing the purpose of dispensing the additive. Meanwhile, to provide power for the injection of additives, a suction device 5 is also provided on the water delivery channel 4. This device creates a negative pressure at the suction port, drawing the additives from the connected storage chamber 21 into the water delivery channel 4, where they are injected with the flowing water. The suction device 5 can be any structure found in the prior art, such as a suction pump that generates suction force during operation (e.g., a suction pump). Figure 1 , 2 (as shown), such as the Venturi tube, which can generate negative pressure through the flow of water through the water outlet.

[0046] In this invention, when the additive is added to any of the storage chambers 21 of the additive dispensing device, the specific process is as follows:

[0047] like Figure 1 As shown, turntable 2 is first placed in the first position, and then driven to rotate to the set position so that the outlet 22 of the selected liquid storage chamber 21 is coaxially set with the inlet connector 31 of the communicating vessel 3.

[0048] like Figure 2 As shown, the turntable 2 is then moved to the second position, and the outlet 22 of the selected liquid storage chamber 21 on the turntable 2 is inserted into the inlet connector 31 of the communicating vessel 3. The inlet connector 31 acts on the one-way shut-off valve 25 at the outlet 22 to control its opening, so that the communicating vessel 3 is connected to the selected liquid storage chamber 21.

[0049] Finally, the suction device 5 on the water delivery channel 4 starts to work, and a negative pressure is formed at the suction port. The additive in the selected storage chamber 21 is drawn into the water delivery channel 4 along the sequentially connected storage chamber 21, outlet 22, connector 3, and suction port under the action of the negative pressure, so as to achieve the purpose of controllable switching of the additive in the selected storage chamber with the water flowing through the water delivery channel 4.

[0050] In this embodiment of the invention, after each additive dispensing process is completed, the turntable 2 needs to be moved from the second position to the first position so that the liquid storage chamber 21 is separated from the communicating vessel 3, thereby avoiding the occurrence of additive misdispensing.

[0051] like Figures 3 to 5As shown in the embodiment of the invention, the outer wall size of the inlet connector 31 of the communicating vessel 3 is set to be the same size as the diameter of the outward-facing end of the outlet 22 of the liquid storage chamber 21, so that the inlet connector 31 of the communicating vessel 3 can be inserted into the outlet 22 of the liquid storage chamber 21, thereby achieving the purpose of sealing and preventing leakage at the connection between the communicating vessel and the outlet. Preferably, to reduce the possibility of leakage, a sealing gasket is provided at the junction of the inlet connector and the outlet. Sealing gaskets can be provided at any or a combination of the inlet connector and the outlet to further improve the leakage prevention effect at the connection.

[0052] like Figures 1 to 5 As shown in this embodiment of the invention, a rotating shaft 23 extending axially is provided at the center of the turntable 2. At least one end of the rotating shaft 23 is directly or via a transmission structure connected to a rotary motor 6. The rotary motor 6 drives the turntable 2 to rotate around the central rotating shaft 23, thereby controlling the rotational orientation of the turntable 2. The turntable 2 has multiple preset orientations, each of which corresponds to the outlet 22 of a liquid storage chamber 21 and the inlet connector 31 of a communicating vessel 3, which are coaxially arranged. This allows the turntable 2 to switch between different preset orientations, thereby achieving the effect of switching the addition of additives in different liquid storage chambers 21.

[0053] Preferred, such as Figure 1 and Figure 2 As shown, to improve control precision, the output end of the rotary motor 6 is connected to the rotating shaft 23 via a reduction gear set. The reduction gear set includes a first transmission gear 61 and a second transmission gear 62. The first transmission gear 61 is coaxially and fixedly connected to the output end of the rotary motor 6, and the second transmission gear 62 is coaxially and fixedly connected to the rotating shaft 23. The first transmission gear 61 and the second transmission gear 62 mesh to transmit the rotational power from the output end of the rotary motor 6 to the rotating shaft 23, driving the turntable 2 to rotate around its central axis. Figure 1 As shown, when the turntable 2 is in the first position, the first transmission gear 61 and the second transmission gear 62 are meshed and connected; as Figure 2 As shown, when the turntable is in the second position, the first transmission gear 61 and the second transmission gear 62 disengage.

[0054] In this embodiment of the invention, in order to move the turntable 2 between the first position and the second position to achieve the effect of additive dispensing, the following settings can be made:

[0055] like Figure 1 and Figure 2As shown, in this embodiment, a slide 7 is provided inside the housing 1 of the additive dispensing device. The slide 7 extends axially along the inlet joint 31 of the communicating vessel 3. The rotating shaft 23 of the turntable 2 is movably mounted on the slide 7. The turntable 2 can move along the slide 7 towards or away from the inlet joint 31 of the communicating vessel 3, thereby achieving the purpose of controlling the movement of the turntable 2 between a first position and a second position. Preferably, the housing 1 of the additive dispensing device is provided with a driving device that drives the turntable 2 to slide along the slide 7. The driving device can be any existing structure; for example: Figure 1 and Figure 2 As shown, the driving device is a telescopic rod 8. One end of the telescopic rod 8 is installed on the housing 1 of the additive dispensing device, and the other end can move telescopically along the extension direction of the slide 7 and is connected to a sleeve 81 sleeved on the outer periphery of the rotating shaft 23 of the turntable 2, so as to achieve the effect of pushing the turntable 2 to slide along the slide 7 without affecting the rotation of the turntable 2.

[0056] like Figure 1 As shown, when the turntable 2 is in the first position, the rotating shaft 23 is directly or via a transmission structure engaged with the output end of the rotary motor 6 to control the rotation of the turntable 2 around the shaft and adjust its orientation.

[0057] like Figure 2 As shown, when the turntable 2 is in the second position, the turntable 2 moves to the communicating vessel 3, and the liquid outlet 22 on the outer periphery of the turntable 2, facing the corresponding direction, is connected to the inlet connector 31 of the communicating vessel 3.

[0058] like Figure 4 and Figure 5 As shown, in this embodiment, the one-way shut-off valve 25 includes a valve core 251 disposed on the side of the outlet 22 facing the inside of the storage chamber 21. The outer circumferential dimension of the valve core 251 is larger than any cross-sectional area of ​​the outlet 22. The valve core 251 is connected to the inner wall of the storage chamber 21 via an elastic member 252. The elastic member 252 applies an elastic force to the valve core 251 to move from the inside of the storage chamber 21 to the outside, pushing the valve core 251 to block the outlet 22 from the inside out.

[0059] Preferred, such as Figure 4 and Figure 5 As shown, in this embodiment, the outlet 22 is a constricted opening with a gradually narrowing radial dimension from the inside out, and the valve core 251 is spherical, with the radial dimension of the spherical valve core 251 being at least greater than the radial dimension of the smallest end of the outlet 22. The elastic element 252 is a spring extending along the axis of the outlet, with the first end of the spring connected to the valve core 251 and the second end connected to the inner wall of the liquid storage cavity 21.

[0060] To avoid affecting the purpose of dispensing liquid from the outlet, a radially extending rib is provided at the large end of the outlet that connects to the storage cavity. One end of the rib is connected to the inner wall of the storage cavity, and the other end is freely positioned and connected to the second end of the spring. The rib only covers the portion of the large end of the outlet that connects to the storage cavity, allowing the additive to flow through the gap between the rib and the large end of the outlet. This achieves the effect of allowing the additive to flow through while providing an installation position for the spring (not shown in the attached drawings).

[0061] like Figure 5 As shown, in this embodiment, the inlet connector 31 of the communicating vessel 3 is provided with a push rod 33 that is coaxially arranged and protrudes from the inlet connector 31; when the communicating vessel 3 moves close to the liquid storage chamber 21, the push rod 33 pushes the valve core 251 of the one-way shut-off valve 25 provided at the liquid outlet 22 to move into the liquid storage chamber 21, thus connecting the communicating vessel 3 and the liquid storage chamber 21.

[0062] Similarly, in order not to affect the flow of additives at the outlet 22 and the inlet connector 31, the radial dimension of the push rod 33 is smaller than the orifice diameter of the outlet 22. Furthermore, in order to install the push rod 33, the end of the push rod 33 can be inserted into the inlet connector 31 and connected to the inner wall at the corner of the communicating vessel 3, so that the gap between the push rod 33 and the inner wall of the communicating vessel can be used for the additive to flow through. Alternatively, a radially extending rib can be provided at the end face of the inlet connector, so that one end of the push rod can be installed on the rib, thereby achieving the effect of connecting the push rod to the communicating vessel using the rib and allowing the gap between the rib and the inner wall of the inlet connector to allow the additive to flow through (not shown in the attached drawings).

[0063] This invention also introduces a washing machine, which can be a regular washing machine with only washing functions, or a clothing treatment device integrating other functions such as drying and steam washing. An additive dispensing device is installed on the washing machine. The inlet of the dispensing water path of the additive dispensing device is connected to the water inlet pipe of the washing machine, and the outlet is connected to the tub on the washing machine. This allows the additive dispensed into the dispensing water path to be released into the tub of the washing machine along with the water flowing through the dispensing water path, thereby achieving the purpose of dispensing additives into the washing machine tub and using the dispensed additives to perform corresponding washing and other clothing treatments.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An additive dispensing device, characterized in that: It includes a turntable that can rotate around the center. The hollow chamber inside the turntable is divided into multiple relatively independent liquid storage chambers for storing additives. Each liquid storage chamber is equipped with a liquid outlet. A one-way shut-off valve is provided at the liquid outlet, which is used to close the liquid outlet under normal conditions and open the liquid outlet due to the action of the docking joint. The hollow cavity inside the turntable is provided with multiple dividing ribs arranged along different radial directions. The dividing ribs divide the hollow cavity of the turntable into multiple fan-shaped liquid storage chambers. Each fan-shaped liquid storage chamber is provided with a liquid outlet located on the peripheral wall of the turntable. The outside of the turntable is equipped with a communicating vessel, which has an inlet connector and an outlet connector connected by an internal flow channel. The inlet connector is opened along the radial direction of the turntable and towards the turntable. The inlet connector of the communicating vessel and the outlet of each liquid storage chamber are all located in the same height section of the turntable. The turntable is movable relative to the communicating vessel and is mounted on the additive dispensing device. The turntable has a first position in which the peripheral wall is separated from the inlet joint of the communicating vessel, and a second position in which the liquid outlet on the peripheral wall is connected to the inlet joint of the communicating vessel. The turntable has an axially extending shaft at its center. At least one end of the shaft is directly or via a transmission structure connected to a rotary motor. The rotary motor drives the turntable to rotate and is used to adjust the rotational position of the turntable. The additive dispensing device has a slide rail inside its housing, which extends axially along the inlet joint of the communicating vessel; the rotating shaft of the turntable is movably mounted on the slide rail to control the turntable to move between a first position and a second position.

2. The additive dispensing device according to claim 1, characterized in that, When the turntable is in the first position, the rotating shaft is directly engaged with the output end of the rotary motor, or through a transmission structure, to control the rotation of the turntable around the shaft and adjust its orientation; When the turntable is in the second position, the turntable moves to the communicating vessel, and the liquid outlet on the outer periphery of the turntable, facing the corresponding direction, is connected to the inlet connector of the communicating vessel.

3. The additive dispensing device according to claim 2, characterized in that, The one-way shut-off valve includes a valve core located on the side of the outlet facing the inside of the storage chamber. The outer circumferential dimension of the valve core is larger than any cross-sectional area of ​​the outlet. The valve core is connected to the inner wall of the storage chamber via an elastic element. The elastic element applies an elastic force to the valve core, moving it from the inside of the storage chamber to the outside, thus pushing the valve core to block the outlet from the inside out.

4. The additive dispensing device according to claim 3, characterized in that, The outlet is a constricted opening with a gradually narrowing radial dimension from the inside out. The valve core is spherical, and the radial dimension of the spherical valve core is at least greater than the radial dimension of the smallest end of the outlet and less than the radial dimension of the largest end of the outlet.

5. The additive dispensing device according to claim 3, characterized in that, The inlet joint of the communicating vessel is equipped with a push rod that is coaxially set and protrudes from the inlet joint; when the communicating vessel moves close to the liquid storage chamber, the push rod extends into the liquid outlet and pushes the valve core of the one-way shut-off valve at the liquid outlet to move into the liquid storage chamber, thus connecting the communicating vessel and the liquid storage chamber.

6. An additive dispensing device according to any one of claims 1 to 5, characterized in that, It also includes a water delivery channel with a suction port, which is connected to the outlet connector of the communicating vessel; A suction device is installed in the water delivery path to create negative pressure at the suction port, drawing the additive in the connected storage chamber into the water delivery path from the suction port.

7. A washing machine, characterized in that, It is equipped with the additive dispensing device as described in any one of claims 1 to 6.

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