Dispensing device and washing machine

Abstract

A dispensing device and a washing machine, the dispensing device comprising: a main body, wherein a waterway is provided within the main body; a liquid storage box, which has a liquid outlet connector, and is pluggably mounted on the main body via the liquid outlet connector. The liquid storage box is connected to the waterway via a liquid guide channel formed by at least the liquid outlet connector; a check valve, mounted at the liquid outlet connector, and having a valve plug for correspondingly blocking the liquid guide channel; and a control lever structure, mounted on the waterway, having a control lever capable of telescopic movement and correspondingly pushing the valve plug to open the liquid guide channel. The above arrangement ensures that the liquid outlet connector of the liquid storage box is in a closed state after installation, allowing the user to seal the liquid outlet connector when removing the liquid storage box, thereby preventing the occurrence of additive dripping or leakage within the liquid storage box.

Description

Technical Field

[0001] The present invention relates to the field of clothing treatment equipment, in particular to a dispensing device for dispensing different types of clothing treatment additives into a washing machine, and more particularly to a liquid guiding structure of a liquid storage box installed on the dispensing device. Background Art

[0002] Currently, washing machines are all equipped with a detergent dispensing device, which has a liquid storage box for storing detergent, fragrance, softener, disinfectant and other additives. The detergent dispensing device is used to dispense the additives stored in the liquid storage box into the water drum of the washing machine along with the water flow.

[0003] The detergent dispenser is equipped with a liquid guide plug-in unit. After the liquid reservoir is properly installed, a portion of the liquid guide plug-in unit is inserted into the liquid reservoir through the liquid outlet, connecting the liquid reservoir to the water path of the detergent dispenser, allowing for the addition of additives. A check valve is often installed in the liquid reservoir at the location where the liquid guide plug-in unit is connected. This valve not only ensures that the additive can only flow from the liquid guide plug-in unit to the liquid reservoir, but also seals the corresponding liquid outlet when the liquid reservoir is removed, facilitating the storage of the additive within the liquid reservoir.

[0004] The valve plug of the existing check valve is opened by the liquid guide plug unit after the liquid storage box is installed on the dispensing device, so that the liquid storage box is always in the liquid outlet open state after installation. When the user cleans or replaces the liquid storage box, the liquid storage box needs to be removed from its installation position, and the liquid guide plug unit will be separated from the liquid storage box. During the removal of the liquid storage box, the additives in the liquid guide plug unit may flow out and cause contamination. In addition, some additives may remain on the surface of the liquid guide plug unit. Over time, this will affect the hygiene of the liquid guide plug unit and cause bacterial growth.

[0005] In view of the above problems, the present invention is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a dispensing device to achieve the purpose of controllable dispensing of additives contained in a liquid storage box; at the same time, another object of the present invention is to provide a detergent dispensing device to prevent the additives from leaking when the liquid storage box is pulled out.

[0007] In order to achieve the above-mentioned object of the invention, the specific scheme adopted by the present invention is as follows:

[0008] A dispensing device comprises a main body, wherein a waterway is provided within the main body; a liquid storage box having a liquid outlet joint, wherein the liquid storage box is pluggably mounted on the main body via the liquid outlet joint, and wherein the liquid storage box is connected to the waterway via a liquid guide channel formed by at least the liquid outlet joint; a check valve, mounted at the liquid outlet joint, and having a valve plug for correspondingly blocking the liquid guide channel; and a control rod structure, mounted on the waterway, and having a control rod capable of generating telescopic movement to correspondingly push the valve plug to open the liquid guide channel.

[0009] Furthermore, a liquid outlet joint protruding outward in a cylindrical shape is provided on one side of the liquid storage box, and the hollow portion of the cylindrical liquid outlet joint constitutes a liquid guide channel connecting the inside and outside of the liquid storage box; the valve plug is provided in the liquid guide channel, and the valve plug is connected to the liquid storage box and / or the liquid outlet joint via an elastic member. The valve plug is acted upon by the elastic force of the elastic member to block the liquid guide channel in the corresponding direction from the inside to the outside of the liquid storage box.

[0010] Furthermore, a radially protruding annular rib is provided in the liquid guide channel of the liquid outlet connector. The valve plug is disc-shaped and coaxially arranged with the cylindrical liquid outlet connector. The disc-shaped valve plug is arranged upstream of the annular rib. The outer circumferential diameter of the disc-shaped valve plug is smaller than the inner wall aperture of the liquid outlet connector and larger than the inner circumferential diameter of the annular rib. The outer circumference of the disc-shaped valve plug is in contact with the annular rib.

[0011] Preferably, at least the outer peripheral portion of the disc-shaped valve plug is made of a rubber material capable of generating elastic deformation; and / or, a sealing gasket made of a rubber material is sandwiched between the outer peripheral portion of the disc-shaped valve plug and the annular rib.

[0012] Furthermore, the control rod structure and the liquid outlet connector of the liquid storage box are arranged on opposite sides of the water channel. The control rod can produce an extension displacement toward the liquid outlet connector, push the valve plug to move toward the inside of the liquid storage box, open the liquid guide channel, and connect the liquid storage box and the water channel; preferably, the control rod and the valve plug, the liquid outlet connector, and the liquid guide channel are all coaxially arranged.

[0013] Furthermore, the control rod structure includes a driving unit located outside the water channel and installed on the detergent dispensing device body, the output end of the driving unit is connected to the control rod, and is used to drive the control rod to produce axial telescopic movement; the control rod passes through the water channel, one end outside the water channel is connected to the output end of the driving unit, and the end inside the water channel is the telescopic end that pushes the valve plug to open and close.

[0014] Furthermore, the valve plug of the check valve is disc-shaped, and a limit column protruding and extending to both sides is provided in the middle of the disc-shaped valve plug. One end of the limit column is close to the waterway and abuts against the telescopic end of the control rod after it is extended.

[0015] Preferably, the end of the limiting column close to the water channel protrudes from the annular rib provided in the liquid outlet joint.

[0016] Furthermore, a radially protruding support rib is provided at one end of the liquid outlet connector that is connected to the liquid storage box, and a spring that pushes the valve plug to move toward the outside of the liquid storage box is sandwiched between the support rib and the valve plug.

[0017] Furthermore, a socket is provided on the main body of the detergent dispensing device, which connects the water channel with the outside and allows the liquid outlet connector of the liquid storage box to be inserted accordingly; a second check valve is installed at the socket, and the second valve plug of the second check valve is connected to the water channel via a second elastic member. The elastic force of the second elastic member pushes the second valve plug from the inside of the water channel to the outside, corresponding to the closed socket. The second valve plug can be pushed by the liquid outlet connector inserted into the socket to move toward the inside of the water channel and correspondingly open the socket.

[0018] Furthermore, the second valve plug has a sleeve with a hollow interior and is coaxially arranged with the liquid outlet joint. A hollow portion that connects the inside and outside of the sleeve is provided on the wall of the sleeve. The sleeve is closed at one end facing the inside of the water channel through a sealing end face. The outer periphery of the sleeve is provided with a radially protruding annular sealing portion, which is in sealing contact with the inner wall of the water channel around the outer periphery of the socket; a coaxially arranged spring is sleeved on the outer periphery of the sleeve, and the two ends of the spring are respectively connected to the second valve plug and the water channel. The spring is clamped between the second valve plug and the water channel in a compressed state, exerting an elastic force on the second valve plug to close the socket.

[0019] Preferably, one end of the sleeve facing the outside of the waterway extends into the insertion hole and is provided with a circle of folded edges bent radially outward, the outer radial dimension of the folded edges is less than or equal to the aperture of the insertion hole and larger than the outer diameter of the liquid outlet joint, and the inner radial dimension of the folded edges is smaller than the inner diameter of the liquid outlet joint; a circle of annular limiting ribs protruding radially inward is provided at the connection between the insertion hole and the waterway, the inner radial dimension of the annular limiting ribs is smaller than the outer radial dimension of the folded edges and larger than the radial dimension of the outer wall of the sleeve;

[0020] Further preferably, the sleeve is opened at one end toward the outside of the water channel, and a limit column protruding axially is provided in the middle of the valve plug of the check valve provided on the liquid outlet joint, and one end of the limit column extends into the interior of the sleeve from the opening of the sleeve for abutting against the telescopic end of the control rod.

[0021] Furthermore, the sleeve sealing end of the second valve plug is composed of a corrugated structure that can produce telescopic deformation, which is used to drive the deformation of the control rod after it is extended, so that the second valve plug does not produce displacement to close the socket, and the control rod can push the valve plug to produce displacement to open the liquid outlet joint.

[0022] Furthermore, the corrugated structure includes a sealing end face covering the sealing end of the sleeve, the sealing end face being composed of an elastic pad with a corrugated shape; and / or a corrugated sleeve extending axially along the sleeve and arranged close to the sealing end, which is made of an elastic material with a corrugated shape, and the two ends of the corrugated sleeve are respectively connected to the sleeve end and the sealing end face.

[0023] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] By providing a check valve at the liquid outlet joint of the liquid storage box and providing a control rod for controlling the opening and closing of the check valve on the water path of the dosing device, the flow of the additive stored in the liquid storage box to the dosing device can be controlled to be on and off, thereby achieving the effect of automatically controlling the additive dosing process; at the same time, through the above-mentioned arrangement, the liquid outlet joint of the installed liquid storage box is in a closed state, so that the user can seal the liquid outlet joint when removing the liquid storage box, thereby avoiding the occurrence of dripping, leakage, etc. of the additive in the liquid storage box.

[0025] At the same time, the present invention also provides a washing machine equipped with the above-mentioned feeding device.

[0026] In addition, the present invention has a simple structure, significant effects, and is suitable for promotion and use.

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, as part of this disclosure, are intended to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are intended to explain the disclosure and do not constitute undue limitations thereon. Obviously, the drawings described below are merely examples, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0029] Figure 1 is a schematic diagram of the delivery device in the first embodiment of the present invention;

[0030] Figure 2 This is an embodiment of the present invention Figure 1 A schematic diagram of the enlarged structure at point A when the reverse valve is in the closed state;

[0031] Figure 3 This is an embodiment of the present invention Figure 1 A schematic diagram of the enlarged structure at point A when the reverse valve is open;

[0032] Figure 4 is a schematic diagram of a delivery device in a second embodiment of the present invention;

[0033] Figure 5 This is an embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at point B when the reverse valve is in the closed state;

[0034] Figure 6 This is an embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at point B when the reverse valve is open;

[0035] Figure 7 This is an embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at point B when the middle liquid storage box is pulled out;

[0036] Figure 8 is a schematic diagram of the delivery device in the third embodiment of the present invention;

[0037] Figure 9 This is an embodiment of the present invention Figure 8 A schematic diagram of the enlarged structure at point C when the reverse valve is in the closed state;

[0038] Figure 10 This is an embodiment of the present invention Figure 8 Enlarged structural diagram of point C when the reverse valve is open.

[0039] Description of the reference numerals in the accompanying drawings:

[0040] 1. Liquid storage box; 2. Main body; 3. Water channel; 4. Check valve; 5. Liquid outlet connector; 6. Control rod; 7. Drive unit; 8. Socket; 9. Valve plug; 10. Limiting column; 11. Liquid guide channel; 12. Annular rib; 13. Support rib; 14. Spring; 15. Second check valve; 16. Second valve plug; 17. Sleeve; 18. Annular sealing part; 19. Second spring; 20. Folding edge; 21. Sealing end face; 22. Corrugated sleeve; 23. Limiting hole; 24. Annular limiting rib.

[0041] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] Example 1

[0043] like Figures 1 to 3 As shown, this embodiment introduces a dosing device for a washing machine for dosing clothing treatment additives, which includes a main body 2, a water channel 3 provided therein; a liquid storage box 1, having a liquid outlet connector 5, the liquid outlet connector 5 being pluggably installed on the main body 2, and the liquid storage box 1 being connected to the water channel 3 via a liquid guide channel 11 formed by at least the liquid outlet connector 5; a check valve 4, installed at the liquid outlet connector 5, having a valve plug 9 corresponding to blocking the liquid guide channel 11; a control rod structure, installed on the water channel 3, having a control rod 6 that can generate telescopic movement and correspondingly push the valve plug 9 to open the liquid guide channel 11.

[0044] By providing a check valve 4 at the liquid outlet joint 5 of the liquid storage box 1 and providing a control rod 6 for controlling the opening and closing of the check valve 4 on the water path 3 of the dosing device body 2, the flow of the additive stored in the liquid storage box 1 to the dosing device is controlled to be on and off, thereby achieving the effect of automatically controlling the additive dosing process; at the same time, through the above-mentioned arrangement, the liquid outlet joint 5 of the installed liquid storage box 1 is in a closed state, so that the user can seal the liquid outlet joint 5 when removing the liquid storage box 1, thereby avoiding the occurrence of dripping, leakage, etc. of the additive in the liquid storage box 1.

[0045] In this embodiment, a liquid reservoir 1 is provided with an outwardly protruding, cylindrical liquid outlet connector 5 on one side. The hollow portion of the cylindrical liquid outlet connector 5 forms a liquid conduction channel 11 connecting the inside and outside of the liquid reservoir 1. A valve plug 9 is disposed within the liquid conduction channel 11. The valve plug 9 is connected to the liquid reservoir 1 and / or the liquid outlet connector 5 via an elastic member. The valve plug 9 is acted upon by the elastic force of the elastic member to block the liquid conduction channel formed by the liquid outlet connector 5 from the inside of the liquid reservoir 1 to the outside. The elastic member can be any existing structure that can provide elastic force, such as a spring 14, a pneumatic rod, a hydraulic rod, or a rubber spring.

[0046] In this embodiment, a radially protruding annular rib 12 is provided in the liquid guide channel 11 of the liquid outlet connector 5, and the valve plug 9 is in the shape of a disc coaxially arranged with the cylindrical liquid outlet connector 5. The disc-shaped valve plug 9 is arranged in the cylindrical liquid outlet connector 5 upstream of the annular rib 12. The outer circumferential diameter of the disc-shaped valve plug 9 is smaller than the inner wall aperture of the liquid outlet connector 5 and larger than the inner circumferential diameter of the annular rib 12. The outer circumference of the disc-shaped valve plug 9 is in contact with the annular rib 12.

[0047] Preferably, in this embodiment, at least the outer peripheral portion of the disc-shaped valve plug 9 is made of a rubber material that can produce elastic deformation, so that the elastic deformation of the outer peripheral portion of the rubber material can be directly used to reliably seal the connection between the valve plug 9 and the liquid outlet connector 5; and / or, a sealing gasket made of rubber material is clamped between the outer peripheral portion of the disc-shaped valve plug 9 and the annular rib 12, so that the sealing gasket can also achieve the effect of sealing the connection between the valve plug and the liquid outlet connector 5 (not indicated in the drawings).

[0048] In this embodiment, the inner circumference of the annular rib 12 is provided with an annular notch facing the valve plug. The valve plug 9 extends into the annular notch, and the peripheral wall of the annular notch and the peripheral wall of the valve plug 9 are in close contact, thereby improving the sealing performance of the valve plug 9. Preferably, the outer peripheral wall of the valve plug 9 is tapered, with the radial dimension gradually narrowing toward the outside of the liquid storage box 1. This facilitates the insertion of the valve plug 9 into the annular notch, ensuring a closer contact between the valve plug and the annular rib, further improving the sealing performance of the valve plug 9.

[0049] In this embodiment, the control lever structure and the liquid outlet connector 5 of the liquid reservoir 1 are located on opposite sides of the waterway 3. This allows the control lever 6 to extend toward the side of the liquid reservoir 1, pushing the valve plug 9 of the check valve 4 to open the liquid channel 11. In this embodiment, the control lever 6 can extend toward the liquid reservoir 1, pushing the valve plug 9 toward the interior of the liquid reservoir 1, and opening the liquid channel 11 to connect the liquid reservoir 1 with the waterway 3.

[0050] Preferably, in this embodiment, the control rod 6 is coaxially arranged with the valve plug 9, the liquid outlet connector 5, and the liquid guide channel 11, so that the axial extension and contraction movement of the control rod 6 is directly transmitted to the valve plug 9, thereby improving the smoothness of the entire transmission process and avoiding the occurrence of problems such as the valve plug 9 being unable to open or opening by mistake.

[0051] In this embodiment, the control lever structure includes a drive unit 7 located outside the waterway 3 and mounted on the detergent dispenser body 2. The output end of the drive unit 7 is connected to the control lever 6, which is used to drive the control lever 6 to extend and retract. The control lever 6 passes through the waterway 3. One end outside the waterway 3 is connected to the output end of the drive unit 7, while the other end inside the waterway 3 is the retractable end that pushes the valve plug 9 to open and close. In this embodiment, a dynamic seal is provided at the point where the control lever 6 passes through the waterway 3 to provide a water-tight seal at the point where the control lever 6 passes through, preventing problems such as water flowing through the waterway 3 and dispensed additives from overflowing from the passage.

[0052] In this embodiment, the control rod 6 telescopically moves axially and is coaxially arranged with the liquid outlet connector 5. The valve plug 9 of the check valve 4 is disc-shaped, and a stopper post 10 is provided in the middle of the disc-shaped valve plug 9, extending outwards to both sides. One end of the stopper post 10 is positioned adjacent to the waterway 3 and abuts the extended end of the control rod 6. By providing the stopper post 10 on the valve plug 9, which protrudes toward the waterway 3, the distance between the valve plug 9 and the extended end of the control rod 6 is shortened, thereby shortening the extension stroke required by the control rod 6 to push the valve plug 9 to open the liquid outlet connector 5, further improving the control accuracy of the valve plug 9.

[0053] Preferably, in this embodiment, the protruding height of the limit column 10 at one end close to the water channel 3 is greater than the thickness of the annular rib provided in the liquid outlet joint 5 in the axial direction of the liquid outlet joint 5, so that the control rod 6 can directly push the valve plug to open and move without passing through the annular rib 12, effectively avoiding interference problems during the extension and retraction of the control rod.

[0054] In this embodiment, a radially protruding support rib 13 is provided at one end of the liquid outlet connector 5 that is connected to the liquid storage box 1. A spring 14 is clamped between the support rib 13 and the valve plug 9 to push the valve plug 9 toward the outside of the liquid storage box 1. The spring 14 is clamped in a compressed state between the support rib 13 and the outer periphery of the valve plug 9. The spring 14 provides an elastic force to push the valve plug 9 toward the outside of the liquid storage box 1.

[0055] Preferably, in this embodiment, a limiting column 10 is provided in the middle part of the disc-shaped valve plug 9, which protrudes axially along the liquid outlet connector 5. The limiting column 10 protrudes toward the outside of the water channel at one end close to the liquid storage box 1. The limiting column 10 passes through the limiting hole 23 correspondingly opened on the support rib 13, so that the valve plug 9 can be guided by the limiting column 10 and the limiting hole 23, thereby ensuring that the valve plug 9 can only be telescopically moved along the axial direction of the liquid outlet connector 5.

[0056] Example 2

[0057] This embodiment is based on the above embodiment 1 and also has the following technical features:

[0058] like Figures 4 to 7 As shown, this embodiment introduces a detergent dispensing device. A socket 8 is provided on the body 2 of the detergent dispensing device. The socket 8 connects the water path 3 with the outside and allows the liquid outlet connector 5 of the liquid storage box 1 to be correspondingly inserted, so that the hollow channel inside the liquid outlet connector 5 and the socket 8 together constitute a liquid guide channel 11 connecting the liquid storage box 1 with the water path 3.

[0059] In this embodiment, in order to fix the liquid outlet connector 5 after it is inserted into the socket 8, meshing threads can be provided on the inner wall of the socket 8 and the outer wall of the liquid outlet connector 5 respectively; matching concave-convex structures can also be provided on the inner wall of the socket 8 and the outer wall of the liquid outlet connector 5 respectively, and the concave-convex structures are used to position the liquid outlet connector 5 and the socket 8.

[0060] In this embodiment, a second check valve 15 is installed at the jack 8. A second valve plug 16 of the second check valve 15 is connected to the waterway 3 via a second elastic member. The elastic force of the second elastic member pushes the second valve plug 16 from the interior of the waterway 3 toward the exterior, correspondingly closing the jack 8. The second valve plug 16 can be pushed by the liquid outlet connector 5 inserted into the jack 8 to move toward the interior of the waterway 3, correspondingly opening the jack 8. The provision of the second check valve 15 at the jack 8 effectively seals the jack 8 of the waterway 3 after the liquid outlet connector 5 of the liquid storage cartridge 1 is removed, effectively eliminating the problem of water flow through the waterway 3 when the dispensing device is not installed with the liquid storage cartridge 1, thereby improving the reliability of the dispensing device. In this embodiment, the second elastic member can also be any existing elastic structure, such as a second spring 19, a hydraulic rod, a pneumatic rod, or a spring.

[0061] Preferably, in this embodiment, in order to improve the reliability and convenience of installing the liquid storage box 1 on the delivery device, the jack 8 and the liquid outlet connector 5 are coaxially arranged.

[0062] In this embodiment, the second valve plug 16 of the second check valve 15 comprises a hollow sleeve 17 coaxially arranged with the liquid outlet connector 5. A hollow portion is provided on the wall of the sleeve 17, connecting the inside and outside of the sleeve 17. This hollow portion connects the hollow passage within the liquid outlet connector 5 with the insertion hole 8, forming the liquid guide passage 11. The end of the sleeve 17 facing the interior of the waterway is sealed by a sealing end face. A radially protruding annular sealing portion 18 is provided on the outer periphery of the sleeve 17, sealingly contacting the inner wall of the waterway 3 around the insertion hole 8. A coaxially arranged second spring 19 is sheathed around the outer periphery of the sleeve 17. The ends of the second spring 19 are respectively connected to the second valve plug 16 and the waterway 3. The second spring 19 is compressed and clamped between the second valve plug 16 and the waterway 3, exerting an elastic force on the second valve plug 16 to close the insertion hole 8.

[0063] In this embodiment, the end of the sleeve 17 facing the outside of the water channel 3 extends into the socket 8 and is provided with a circle of folded edge 20 bent radially outward. The outer radial dimension of the folded edge 20 is less than or equal to the aperture of the socket 8 and larger than the outer diameter of the liquid outlet joint 5, and the inner radial dimension of the folded edge 20 is smaller than the inner diameter of the liquid outlet joint 5; a circle of radially inwardly protruding annular limiting ribs 24 is provided at the connection point between the socket 8 and the water channel 3, and the two ends of the second spring 19 mounted on the outer periphery of the sleeve 17 are respectively connected to the annular limiting rib 24 and the folded edge 20, and are compressed by the clamping action of the folded edge 20 and the annular limiting rib 24, and exert an elastic force on the second valve plug 16 to close the socket 8. The inner radial dimension of the annular limiting rib 24 is smaller than the outer radial dimension of the folded edge 20 and larger than the radial dimension of the outer wall of the sleeve 17, so that the annular limiting rib 24 provides a limiting effect on the second valve plug 16 and prevents it from detaching from the insertion hole 8; at the same time, it can also allow the liquid outlet connector 5 to abut against the folded edge 20 of the second valve plug 16 after insertion, pushing the second valve plug 16 to open the corresponding insertion hole 8.

[0064] In this embodiment, the sleeve 17 is opened at one end toward the outside of the water channel 3, and a limit column 10 protruding axially is provided in the middle of the valve plug 9 of the check valve 4 provided on the liquid outlet joint 5. One end of the limit column 10 extends from the opening of the sleeve 17 into the interior of the sleeve 17 and is used to abut against the telescopic end of the control rod 6 to further reduce the distance between the valve plug 9 and the control rod 6, thereby shortening the extension stroke of the valve plug 9 and improving the control accuracy.

[0065] In this embodiment, the sealing end of the sleeve 17 of the second valve plug 16 is composed of a corrugated structure that can produce telescopic deformation, which is used to drive the deformation of the control rod 6 after it is extended, so that the second valve plug 16 does not produce the displacement of closing the socket 8, and the control rod 6 can push the valve plug 9 to produce the displacement to open the liquid outlet connector 5.

[0066] In this embodiment, the bellows structure provided at the sealing end of the sleeve 17 of the second valve plug 16 includes a sealing end surface 21 covering the sealing end of the sleeve 17. The sealing end surface 21 is formed of a corrugated elastic pad. The extended control rod 6 can cause the corrugations on the bellows sealing end surface 21 to expand, thereby changing the shape of the bellows sealing end surface. This allows the control rod 6 to push the valve plug 9 to open the liquid outlet connection 5 without moving the second valve plug 16 to close the receptacle 8.

[0067] Example 3

[0068] This embodiment is based on the above embodiment and has the following technical features that distinguish it from the second embodiment:

[0069] like Figures 8 to 10 As shown, in this embodiment, the corrugated structure provided at the sealing end of the sleeve 17 of the second valve plug 16 includes a corrugated sleeve 22 extending axially along the sleeve 17 and disposed near the sealing end. The ends of the corrugated sleeve 22 are respectively connected to the end of the sleeve 17 and the sealing end surface 21. The corrugated sleeve 22 can be squeezed and deformed by the extension of the control rod 6, causing the corrugated sleeve 22 to be squeezed in the axial direction and narrow its axial height. This also achieves the effect of the control rod 6 not driving the second valve plug 16 to move and close the receptacle 8, but instead pushing the valve plug 9 to move and open the liquid outlet connection 5.

[0070] Example 4

[0071] This embodiment introduces a washing machine, which is equipped with the dispensing device described in the above embodiment. The inlet of the water channel of the dispensing device is connected to an external water source, and the outlet is connected to the water drum of the washing machine, so that water can be supplied to the water drum of the washing machine by using the above dispensing device; at the same time, during the water supply process, the control rod can be controlled to extend and push the valve plug of the check valve to open, so that the additives stored in the liquid storage box can flow into the water channel in a controllable manner and enter the water drum together with the incoming water flow, so as to achieve the purpose of automatic dispensing of additives into the washing machine.

[0072] Of course, the dispensing device in the above embodiment of the present invention can also be installed in any equipment that can process clothes, such as a clothes dryer, a washer-dryer, a drying machine, a refresher, an ironing machine, a disinfecting machine, etc.

[0073] Furthermore, the dispensing device in the above embodiment can be equipped with multiple liquid storage boxes, with the liquid outlet connectors of each storage box correspondingly plugged into different jacks on the waterway. A corresponding control lever installed on the waterway pushes the valve plug to open, allowing the additives stored in the different storage boxes to be controlled and dispensed simultaneously or asynchronously into the washing machine water drum through the waterway. Since different storage boxes can store different types of additives, the effect of automatically dispensing different additives separately or simultaneously can be achieved.

[0074] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A delivery device comprising: The main body includes a water channel; The liquid storage box has a liquid outlet joint, the liquid storage box is pluggably installed on the body via the liquid outlet joint, and the liquid storage box is connected to the waterway via a liquid guide channel formed by at least the liquid outlet joint; Its characteristics are: The check valve is installed at the liquid outlet joint and has a valve plug corresponding to the liquid guide channel; The control rod structure is installed on the waterway and has a control rod that can produce telescopic movement and correspondingly push the valve plug to open the liquid guide channel; The main body of the detergent dispensing device is provided with an insertion hole, which connects the water channel with the outside and is correspondingly inserted into the liquid outlet connector of the liquid storage box; a second check valve is installed at the insertion hole, and a second valve plug of the second check valve is connected to the water channel via a second elastic member. The elastic force of the second elastic member pushes the second valve plug from the inside of the water channel to the outside, corresponding to the closing of the insertion hole. The second valve plug can be pushed by the liquid outlet connector inserted into the insertion hole to move into the water channel and correspondingly open the insertion hole; The second valve plug has a sleeve with a hollow interior and is coaxially arranged with the liquid outlet joint. A hollow portion is provided on the wall of the sleeve to connect the inside and outside of the sleeve. The end of the sleeve facing the inside of the water channel is closed by a sealing end face. The outer periphery of the sleeve is provided with a radially protruding annular sealing portion, which is in sealing contact with the inner wall of the water channel around the outer periphery of the socket.

2. A delivery device according to claim 1, characterized in that: A liquid outlet connector protruding outwards and in the shape of a cylinder is provided on one side of the liquid storage box, and the hollow portion of the cylinder-shaped liquid outlet connector forms a liquid guide channel connecting the inside and outside of the liquid storage box; The valve plug is arranged in the liquid guide channel, and is connected to the liquid storage box and / or the liquid outlet joint through an elastic member. The valve plug is acted upon by the elastic force of the elastic member to block the liquid guide channel from the inside of the liquid storage box to the outside.

3. A delivery device according to claim 2, characterized in that: A radially protruding annular rib is provided in the liquid guide channel of the liquid outlet joint. The valve plug is disc-shaped and coaxially arranged with the cylindrical liquid outlet joint. The disc-shaped valve plug is arranged upstream of the annular rib. The outer circumferential diameter of the disc-shaped valve plug is smaller than the inner wall aperture of the liquid outlet joint and larger than the inner circumferential diameter of the annular rib. The outer circumference of the disc-shaped valve plug is in contact with the annular rib.

4. A delivery device according to claim 3, characterized in that: At least the outer periphery of the disc-shaped valve plug is made of a rubber material capable of elastic deformation; And / or, a sealing gasket made of rubber material is sandwiched between the outer periphery of the disc-shaped valve plug and the annular rib.

5. A delivery device according to any one of claims 1 to 4, characterized in that: The control rod structure and the liquid outlet joint of the liquid storage box are arranged on opposite sides of the water channel. The control rod can produce an extension displacement toward the liquid outlet joint, push the valve plug toward the inside of the liquid storage box, open the liquid guide channel, and connect the liquid storage box and the water channel.

6. A delivery device according to claim 5, characterized in that: The control rod, the valve plug, the liquid outlet joint and the liquid guide channel are all coaxially arranged.

7. A delivery device according to claim 5, characterized in that: The control rod structure includes a drive unit located outside the water channel and installed on the detergent dispensing device body. The output end of the drive unit is connected to the control rod, which is used to drive the control rod to produce axial telescopic movement; the control rod passes through the water channel, and one end located outside the water channel is connected to the output end of the drive unit, and the other end located inside the water channel is the telescopic end that pushes the valve plug to open and close.

8. A delivery device according to claim 5, characterized in that: The valve plug of the check valve is disc-shaped, and a limit column protruding and extending to both sides is provided in the middle of the disc-shaped valve plug. One end of the limit column is close to the waterway and abuts against the telescopic end of the control rod after it is extended.

9. A delivery device according to claim 8, characterized in that: One end of the limiting column close to the water channel protrudes from the annular rib arranged in the liquid outlet joint.

10. A delivery device according to any one of claims 1 to 4, characterized in that: One end of the liquid outlet joint connected to the liquid storage box is provided with a radially protruding support rib, and a spring for pushing the valve plug to move toward the outside of the liquid storage box is clamped between the support rib and the valve plug.

11. A delivery device according to any one of claims 1 to 4, characterized in that: A coaxially arranged second elastic member is sleeved on the outer periphery of the sleeve, and the two ends of the second elastic member are respectively connected to the second valve plug and the water channel. The second elastic member is clamped between the second valve plug and the water channel in a compressed state, applying an elastic force to the second valve plug to close the socket.

12. A delivery device according to claim 11, characterized in that: One end of the sleeve facing the outside of the water channel extends into the socket and is provided with a circle of folded edges bent radially outward. The outer radial dimension of the folded edge is less than or equal to the aperture of the socket and larger than the outer diameter of the liquid outlet joint. The inner radial dimension of the folded edge is smaller than the inner diameter of the liquid outlet joint. A circle of radially inwardly protruding annular limiting ribs is provided at the connection between the socket and the water channel. The inner radial dimension of the annular limiting ribs is smaller than the outer radial dimension of the folded edge and larger than the radial dimension of the outer wall of the sleeve.

13. A delivery device according to claim 11, characterized in that: The sleeve is open at one end toward the outside of the waterway, and a limit column protruding axially is provided in the middle of the valve plug of the check valve arranged on the liquid outlet joint. One end of the limit column extends into the interior of the sleeve from the opening of the sleeve and is used to abut against the telescopic end of the control rod.

14. A delivery device according to claim 11, characterized in that: The sleeve sealing end of the second valve plug is composed of a corrugated structure that can produce telescopic deformation, which is used to drive the deformation of the control rod after it is extended, so that the control rod can push the valve plug to produce displacement to open the liquid outlet joint without the second valve plug producing displacement to close the socket.

15. A delivery device according to claim 14, characterized in that: The corrugated structure includes: A sealing end face covering the sealing end of the sleeve, the sealing end face being formed by an elastic pad having a corrugated shape; And / or, a corrugated sleeve extending along the axial direction of the sleeve and arranged close to the sealing end and made of elastic material with a corrugated shape, wherein both ends of the corrugated sleeve are respectively connected to the sleeve end and the sealing end face.

16. A washing machine equipped with the dispensing device according to any one of claims 1 to 15.

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