Detergent putting device, control method and washing machine

Abstract

A detergent putting device comprises a water inlet waterway, a water outlet waterway and a detergent putting device, the liquid storage cavity is used for storing a detergent; the liquid storage cavity is communicated with the water inlet waterway through the feeding waterway; the putting module is provided with an elastic diaphragm, the elastic diaphragm divides an inner cavity of the putting module into a water passing cavity and a liquid passing cavity, and the elastic diaphragm can generate expansion or contraction elastic deformation towards the cavities on the two sides under the action of the pressure difference on the two sides; the water passing cavity is connected to the putting water way in series and connected with the water inlet water way, the elastic diaphragm is driven to generate reciprocating expansion and contraction deformation through the variable water pressure generated by on-off inflow water flow flowing through the water inlet water way, and the detergent stored in the liquid storage cavity is pumped into the liquid passing cavity and put into the water inlet water way. By means of the arrangement, the detergent feeding device can directly drive the detergent in the liquid storage cavity to flow towards the feeding water path by means of the variable water pressure generated by water flow flowing through the channel of the water inlet water path, a pumping structure does not need to be additionally arranged on the feeding device, and the production cost is saved.

Description

Technical Field

[0001] The present invention belongs to a washing machine in the field of clothing cleaning, and in particular relates to a detergent dispensing assembly and a control method for the washing machine, and also relates to a washing machine equipped with the detergent dispensing device. Background Art

[0002] A washing machine is a frequently used household appliance. The washing machine is provided with an additive delivery device, which mainly includes a water box connected to the water inlet pipe of the washing machine and a liquid storage box contained in the water box. The liquid storage box is usually provided in a structure form that can be pulled out of the water box, so that the user can pull out the liquid storage box from the water box and add detergent, and / or softener, and / or disinfectant and other additives into the box.

[0003] The applicant previously proposed a new washing method to improve the washing effect and reduce the water consumption for washing: after the washing machine starts to take in water, the additives in the liquid storage box are sucked by a liquid pumping device and put into the water channel of the water box. The water in the water inlet pipe can first enter the water supply channel of the water box and mix with the additives to form a mixed liquid, and then be added to the inside of the washing machine, and the detergent mixed liquid is used to perform essence washing on the clothes in the washing tub.

[0004] However, existing detergent dispensing devices are generally equipped with a suction pump structure, which uses the suction force generated by the suction pump structure when it is working to draw the detergent stored in the liquid storage chamber into the water path, mix it with the incoming water in the water path to form a detergent mixed liquid, and then dispense it outward; however, the suction pump is expensive, which will lead to an increase in the cost of the washing machine.

[0005] In order to solve the above-mentioned problem, the applicant has previously proposed a dispensing device that utilizes the incoming water flow to generate negative pressure to extract detergent. However, in order to utilize the incoming water flow to generate negative pressure, the water path in the above-mentioned device generally needs to be complicated to form a Venturi pipe, etc., which will lead to the complication of the water path of the dispensing device and easily cause problems such as leakage of the dispensing device; and will also lead to increased costs.

[0006] Therefore, providing a low-cost automatic detergent dispensing device has become a technical problem that those skilled in the art urgently need to solve.

[0007] In view of this, this application is hereby filed. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a detergent dispensing device to achieve the purpose of automatically extracting and dispensing detergent by utilizing the water pressure difference generated by the interruption of water flow; at the same time, the present invention also provides a dispensing device and a control method and a washing machine to achieve the purpose of using a detergent mixture to wash the clothes in the barrel of the washing machine.

[0009] In order to achieve the above-mentioned invention object, the basic concept of the technical solution adopted by the present invention is:

[0010] A detergent dispensing device comprises an inlet waterway for introducing an inlet water flow that can be controllably turned on and off; a liquid storage chamber for storing detergent; a dispensing waterway for connecting the detergent liquid storage chamber with the inlet waterway; a dispensing module provided with an elastic diaphragm, the elastic diaphragm dividing the internal chamber of the dispensing module into a water passage chamber and a liquid passage chamber, the elastic diaphragm being elastically deformed to expand or contract toward the chambers on both sides under the action of the pressure difference on both sides; the water passage chamber being connected in series to the dispensing waterway, the water passage chamber being connected to the inlet waterway, the elastic diaphragm being driven to produce reciprocating expansion and contraction deformation by utilizing the changing water pressure generated by the inlet water flow that is turned on and off and flows through the inlet waterway, so as to draw the detergent stored in the liquid storage chamber into the liquid passage chamber and dispense it into the inlet waterway.

[0011] Furthermore, an inlet valve is provided on the water inlet side of the water inlet circuit to control the on / off of the water inlet flow; the inlet valve is located upstream of the connection between the water inlet circuit and the water flow chamber; the connection between the water inlet circuit and the water flow chamber is located upstream of the connection between the water inlet circuit and the delivery water circuit.

[0012] Furthermore, the outlet of the water inlet channel is connected to the delivery chamber, and the delivery chamber is provided with a mixing structure, which mixes the detergent and the water inlet flowing into the delivery chamber to form a detergent mixed liquid; a delivery outlet is provided on one side of the delivery chamber for the detergent mixed liquid to be delivered outward.

[0013] Furthermore, the water inlet chamber is provided with a pressure relief port, which is connected to the water inlet waterway via a pipeline; preferably, the pressure relief port is connected to the delivery chamber via a pipeline; further preferably, the diaphragm is connected to an elastic member, and the two ends of the elastic member are respectively connected to the module and the inner wall of the chamber, for providing reset movement to the diaphragm and driving the diaphragm to remain in the reset position.

[0014] Furthermore, the detergent dispensing device includes a shell, and the bottom of the shell constitutes a dispensing chamber; a vertically extending baffle is provided in the dispensing chamber, the baffle divides the dispensing chamber into two parts, a front and a rear part, a water outlet connecting the front and the rear parts is provided in the middle of the baffle, a mixing liquid impeller rotatable around a horizontal rotating shaft extending left and right is installed at the water outlet, the outlet of the dispensing water channel, the outlet of the water inlet water channel, and the outlet of the pipeline connected to the pressure relief port are all connected to the rear part of the dispensing chamber, and a dispensing outlet is opened on the front side of the front part of the dispensing chamber.

[0015] Furthermore, it includes multiple liquid storage chambers, each storing a different detergent; the outlet of each liquid storage chamber is switchably connected to the liquid inlet of the liquid chamber via a control valve structure; the liquid outlet of the liquid chamber is connected to the delivery chamber via a delivery water channel; preferably, the liquid inlet and liquid outlet of the liquid inlet chamber are respectively provided with a one-way valve structure that can only control the one-way flow of the fluid, so as to control the detergent to flow into the liquid inlet chamber from the liquid inlet and out of the liquid inlet chamber from the liquid outlet.

[0016] Furthermore, the water inlet waterway is bifurcated into two branches from the water inlet side to the downstream direction, namely, a main water inlet waterway and a control water inlet waterway; the water outlet of the main water inlet waterway is connected to the rear part of the delivery chamber, and the water outlet of the control water inlet waterway is connected to the water inlet of the water passage chamber; preferably, control valves for controlling the on-off of the branches are respectively provided on the main water inlet waterway and the control water inlet waterway.

[0017] Another object of the present invention is to provide a control method for any of the above-mentioned detergent dispensing devices, which comprises: when dispensing detergent, an intermittent inlet water flow flows through the inlet water path; when the inlet water flow flows through the inlet water path, the water pressure of the inlet water flow drives the diaphragm to expand toward the liquid inlet chamber side, and the medium in the liquid inlet chamber is squeezed and discharged outward from the liquid outlet; when the inlet water flow does not flow through the inlet water path, the diaphragm is no longer pushed by the water pressure and resets to the water inlet chamber side under the elastic force, thereby forming a negative pressure in the liquid inlet chamber, and the detergent in the liquid storage chamber is drawn into the liquid inlet chamber from the liquid inlet by utilizing the negative pressure.

[0018] Furthermore, when adding detergent, the water inlet valve of the water inlet circuit is opened at intervals; after the water inlet valve is opened for a set time t1, it is closed for a set time t2; when the opening set time t1 is utilized, the water pressure of the inlet water flow in the water inlet circuit pushes the diaphragm to expand and move toward the liquid inlet cavity side, squeezing the detergent in the liquid inlet cavity to flow out from the liquid outlet; and when the closing set time t2 is utilized, the inlet water flow does not flow through the water inlet circuit, the diaphragm loses the water pressure push and is reset to the water inlet cavity side by the elastic reset force, and a negative pressure is formed in the liquid inlet cavity to draw the detergent in the liquid storage cavity into the liquid inlet cavity; preferably, the opening set time t1 of each water inlet valve opening is the same or different set time length, and the closing set time t1 of each water inlet valve closing is the same or different set time length; further preferably, the opening set time t1 of each water inlet valve opening gradually increases, and the closing set time t1 of each water inlet valve closing gradually decreases.

[0019] Furthermore, the detergent flowing out of the liquid inlet chamber and the inlet water flow flowing out of the water inlet water path flow into the delivery chamber together; the detergent and the inlet water flow in the delivery chamber flow through the mixing liquid impeller at the same time, driving the mixing liquid impeller to rotate, and the rotating mixing liquid impeller is used to stir the inlet water flow of the detergent box to form a detergent mixed liquid; the detergent mixed liquid flows out from the delivery outlet of the delivery chamber.

[0020] Another object of the present invention is to provide a washing machine, comprising a washing tub for providing a space for accommodating clothes, with a tub opening arranged on the top; a pan seat fixed on the outer shell of the washing machine, located above the washing tub, and having a clothes delivery opening opened toward the washing tub; and a detergent delivery device as described above, the detergent delivery device being installed on the pan seat, the delivery outlet of the detergent delivery device being opened toward the tub opening of the washing tub, and being used for delivering the formed detergent mixture into the washing tub.

[0021] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0022] Through the above-mentioned arrangement, the detergent dispensing device can directly utilize the changing water pressure generated by the water flow through the channel of the water inlet waterway to drive the detergent in the liquid storage chamber to flow toward the dispensing waterway, without the need to add a pumping structure to the dispensing device, thereby saving production costs; at the same time, the dispensing device of the present application can also effectively isolate the occurrence of backflow of the incoming water in the water inlet waterway into the liquid storage chamber.

[0023] At the same time, the invention has a simple structure, a concise method, and a significant effect, and is suitable for popularization and use.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0026] Figure 1 is a structural principle diagram of a detergent dispensing device in an embodiment of the present invention;

[0027] Figure 2 and Figure 3 is a schematic structural diagram of a detergent dispensing device according to an embodiment of the present invention from different viewing angles;

[0028] Figure 4 is a top view of a detergent dispensing device in an embodiment of the present invention;

[0029] Figure 5 In the embodiment of the present invention Figure 4 Schematic diagram of the structure of the AA section;

[0030] Figure 6 In the embodiment of the present invention Figure 5 A schematic diagram of the structure of the BB section;

[0031] Figure 7 In the embodiment of the present invention Figure 5 Schematic diagram of the CC section structure;

[0032] Figure 8 and Fig. 9 is an exploded schematic diagram of a detergent dispensing device in an embodiment of the present invention from different viewing angles;

[0033] Fig.10 It is a schematic structural diagram of a washing machine pan seat in an embodiment of the present invention.

[0034] Description of the main components in the figure:

[0035] 100, delivery device; 200, tray; 10, housing; 101, upper cover; 102, lower cover; 1, water inlet circuit; 2, liquid storage chamber; 3, delivery module; 4, delivery circuit; 5, delivery chamber; 6, pressure relief pipeline; 7, liquid inlet pipeline; 8, liquid outlet pipeline; 9, liquid mixing structure; 11, main water inlet circuit; 12, control water inlet circuit; 14, water inlet valve; 141, first water inlet valve; 142, second water inlet valve ; 21. First liquid storage chamber; 22. Second liquid storage chamber; 31. Liquid passage chamber; 32. Water passage chamber; 33. Diaphragm; 34. Elastic member; 35. Water inlet; 36. Pressure relief port; 37. Liquid inlet; 38. Liquid outlet; 39. One-way valve; 391. Liquid inlet one-way valve; 392. Liquid outlet one-way valve; 51. Front; 52. Rear; 53. Retaining rib; 54. Water passage; 55. Delivery outlet; 91. Mixing impeller.

[0036] 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 are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0038] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the embodiment of the present invention, the additive is a common consumable used for cleaning clothes, such as a detergent, a rinse agent, a softener and / or a disinfectant.

[0041] like Figures 1 to 6 As shown, in the embodiment of the present invention, a detergent dispensing device 100 for a washing machine is introduced, comprising a housing 10, a water inlet waterway 1 is provided on the housing 10, for introducing the incoming water flow into the waterway inside the housing; a liquid storage chamber 2 is provided in the housing 10, for storing detergent; a dispensing waterway 4 is provided on the housing 10, and the two ends of the dispensing waterway 4 are respectively connected with the water inlet waterway 1 and the liquid storage chamber 2, for dispensing detergent into the water inlet waterway 1, and mixing with the incoming water flowing through the water inlet waterway 1 to form a detergent mixed liquid, and the detergent mixed liquid is dispensed outward. In order to provide a driving force for extracting the detergent in the liquid storage chamber 2 into the water inlet waterway 1 and prevent the water in the water inlet waterway from flowing back into the liquid storage chamber, a dispensing module 3 is installed on the housing of the detergent dispensing device, and the dispensing module 3 can use the changing water pressure generated by the water flow flowing through the channel of the water inlet waterway 1 to drive the detergent in the liquid storage chamber 2 to flow to the dispensing waterway 4, and can also effectively isolate the occurrence of the situation where the incoming water in the water inlet waterway 1 flows back into the liquid storage chamber 2.

[0042] In the embodiment of the present invention, the specific structure of the delivery module 3 is as follows:

[0043] The delivery module 3 includes a main body, which has a hollow chamber inside. A diaphragm 33 is installed in the hollow chamber. The diaphragm 33 divides the hollow chamber into two independent parts, namely a liquid chamber 31 and a water chamber 32. The diaphragm 33 is an elastic diaphragm that can expand and deform to one side under the action of the pressure difference on both sides, and can restore the deformation to the initial position by using the elastic restoring force after the pressure difference on both sides disappears; for example: an elastic membrane with certain folds and made of elastic rubber material, etc.

[0044] The body of the delivery module can be any existing internal hollow structure; preferably, the body of the delivery module 3 is a cylindrical structure, and the diaphragm 33 is a circular diaphragm arranged in the central axis surface of the cylindrical chamber to divide the hollow chamber into two cylindrical chambers along the axis, and the cylindrical chambers on both sides respectively constitute the liquid chamber 31 and the water chamber 32.

[0045] The liquid passage chamber 31 is provided with a liquid inlet 37 and a liquid outlet 38 connected to the outside; preferably, the liquid inlet 37 and the liquid outlet 38 are both located on the side of the cylindrical chamber opposite to the diaphragm, and are arranged symmetrically relative to the axis of the cylindrical chamber. The liquid inlet 37 is connected to the outlet of the liquid storage chamber 2 through the liquid inlet pipeline 7, and the liquid outlet 38 is connected to the water inlet waterway 1 through the liquid outlet pipeline 8.

[0046] At the same time, in the embodiment of the present invention, in order to ensure that when the diaphragm 33 expands and resets, the power generated drives the detergent in the liquid storage chamber 2 to flow toward the water inlet waterway, the following settings are required: a one-way valve 39 is respectively provided at the liquid inlet 37 and the liquid outlet 38 of the liquid chamber 31 to ensure that the liquid flows through the corresponding openings in a single direction and the detergent in the liquid storage chamber 2 flows unidirectionally through the liquid chamber 31 toward the water inlet waterway 1. A liquid inlet check valve 391 is installed at the liquid inlet 37 of the liquid passage chamber 31, which is used to ensure that the liquid inlet 37 can only be opened in one direction toward the liquid passage chamber 31, so that the detergent can only flow from the liquid storage chamber 2 along the liquid inlet pipeline 7 and into the liquid passage chamber 31 from the liquid inlet 37; a liquid outlet check valve 392 is installed at the liquid outlet 38 of the liquid passage chamber 31, which is used to ensure that the liquid outlet 38 can only be opened in one direction toward the outside of the liquid passage chamber 31, so that the detergent can only flow out of the liquid passage chamber 31 from the liquid outlet 37 and flow along the liquid outlet pipeline 8 to the water inlet waterway 1.

[0047] Furthermore, in order to ensure that the diaphragm 33 can be reset after expanding and deforming toward the liquid chamber side under the water pressure of the incoming water flow, an elastic member 34 is installed in the hollow chamber of the delivery module 3, and the two ends of the elastic member 34 are respectively connected to the diaphragm 33 and the inner wall of the chamber, which is used to provide elastic reset force to the diaphragm 33, so that the diaphragm 33 is reset to the initial position, or drives the diaphragm 33 to remain in the initial position. Preferably, the elastic member 34 is a spring coaxially arranged with the cylindrical liquid chamber 31, and the two ends of the spring are respectively connected to the diaphragm 33 and the inner wall of the liquid chamber 31, so that the compression elastic force of the spring itself can provide the reset driving force for the diaphragm 33.

[0048] In addition, in order to prevent the diaphragm 33 from being displaced too much when it expands and deforms, an annular convex rib can be provided on the side of the diaphragm facing the liquid chamber 31. The annular convex rib is spaced apart from the inner wall of the liquid chamber on the opposite side of the diaphragm to provide expansion and deformation space for the diaphragm. One end of the spring is sleeved on the inner or outer periphery of the annular convex rib, so as to utilize the protruding and extending annular convex rib to provide a limiting effect on the spring, thereby preventing the spring from being deflected during the expansion and contraction process, thereby preventing the diaphragm from being stuck and unable to reset.

[0049] In the embodiment of the present invention, the shell 10 is hollow inside, and the hollow part constitutes a liquid storage chamber 2 for storing detergent; preferably, a vertically extending retaining rib can be set in the hollow part of the shell 10 to divide the hollow part into multiple liquid storage chambers 2, namely: a first liquid storage chamber 21, a second liquid storage chamber 22, etc.; each liquid storage chamber 2 can be used to store different types of detergents. The detergent can be any existing additive that has a washing effect on clothes, such as detergent, fragrance enhancer, disinfectant, softener, bleach, etc.; of course, the detergent can also be the same type of additives with different concentrations, such as concentrated detergent, etc.

[0050] The upper side of the shell 10 is provided with an inlet opening upwardly connected to the top of the liquid storage chamber 2, so that the user can inject detergent into the liquid storage chamber 2. The upper side of the shell 10 is also fitted with an upper cover 101, which is welded to the upper side wall of the shell 10, and a waterway is formed by the concave-convex structure at the overlap; the waterway includes an inlet waterway 1. The lower side of the shell is also fitted with a lower cover 102, which is welded to the lower side wall of the shell 10, and a chamber is formed by the concave-convex structure at the overlap; the chamber includes a delivery chamber 5. The inlet waterway 1 also includes an interlayer chamber formed by the thickness of the side wall of the shell 10, so that the waterway on the upper side of the shell 10 can be led to the lower side of the shell 10 through the interlayer chamber and connected to the delivery chamber 5 directly or through a pipeline, so as to achieve the effect of delivering the inlet water flow outward.

[0051] In the embodiment of the present invention, the water inlet of the water inlet circuit 1 is connected to the water inlet pipe of the washing machine, so that the water flow supplied by the water source of the washing machine can flow into the water inlet circuit 1 through the water inlet pipe; the water inlet of the water inlet circuit 1 is divided into two branches, namely, the main water inlet circuit 11 and the control water inlet circuit 12. The main water inlet circuit 11 and the control water inlet circuit 12 are provided with water inlet valves 14, which are used to control the water flow of the main water inlet circuit 11 and the control water inlet circuit 12. The water inlet valve 14 can be set only on either the main water inlet circuit 11 or the control water inlet circuit 12, or one water inlet valve 14 can be set on each of the two circuits.

[0052] Preferably, in the embodiment of the present invention, the following design is specifically adopted:

[0053] The main water inlet waterway 11 is composed of a vertically extending interlayer chamber opened on the side wall of one side of the shell 10, the upper end of which is connected to the first water inlet valve 141 to form the water inlet of the main water inlet waterway 11; the lower end is connected to the delivery chamber 5, and is used to introduce most of the water flow flowing through the main water inlet waterway 11 into the delivery chamber 5 and flow out from the delivery outlet 55 set on the delivery chamber 5.

[0054] The controlled water inlet waterway 12 is composed of the interlayer gap between the upper side of the shell and the upper cover 101. One end of the controlled water inlet waterway 12 is connected to the second water inlet valve 142 to form the water inlet of the controlled water inlet waterway 12; the first water inlet valve 141 and the second water inlet valve 142 are both located at the rear of the same side of the shell 10 and are both connected to the same water inlet, so that the water flow led to the water inlet by the water inlet pipe of the washing machine can be switched on and off and diverted to the two water inlet waterways under the opening and closing control of the two water inlet valves 14. The water inlet channel 12 is controlled to extend left and right along the upper rear side wall of the shell 10, and the extension end is to the other side of the shell 10, and is connected with the water inlet 35 of the water passage chamber 32 of the delivery module 3, and is used to introduce the water pressure of the controllable on-off inlet water flow into the water passage chamber 32, and then use the changing water pressure to drive the diaphragm 33 to expand and reset, so as to achieve the purpose of driving the detergent in the liquid storage chamber 2 to be drawn into the delivery chamber 5 and delivered together with the inlet water flow.

[0055] In the embodiment of the present invention, in order to achieve the effect of allowing the water flow into the water chamber 32 to flow out and achieving the effect of regulating the pressure loss in the water chamber 32 when the diaphragm 33 is reset and deformed, it is necessary to set a pressure relief port 36 on the water chamber 32 so that the water flow into the water chamber 32 can flow out from the pressure relief port 36; the pressure relief port 36 is connected to the delivery chamber 5 through the pressure relief pipe 6, so that the water flow out of the water chamber 32 after pressure relief flows into the delivery chamber 5 through the pressure relief pipe 6, and is delivered to the outside together with the detergent. Preferably, the pressure relief port 36 is set on the side wall of the water chamber 32, and the aperture of the pressure relief port 36 is smaller than the aperture of the water inlet 35, so as to ensure that the water pressure of the water flow can be transmitted to the diaphragm 33 and the water pressure in the water chamber 32 will not leak out from the pressure relief port 36.

[0056] In the embodiment of the present invention, the delivery chamber 5 is a horizontally extending sheet-shaped chamber disposed below the housing 10 of the delivery device; a retaining rib 53 extending in the left-right direction is disposed in the middle of the delivery chamber 5, and the retaining rib 53 separates the delivery chamber 5 into a front portion 51 and a rear portion 52 which are independent of each other. The outlet of the main water inlet waterway 11 is disposed on one side of the rear portion 51, so that the main water inlet waterway 11 is connected to the rear portion 52 of the delivery chamber 5; the outlets of the pressure relief pipeline 6 and the liquid outlet pipeline 8 are both disposed on the other side of the rear portion, so that the pressure relief pipeline 6 and the liquid outlet pipeline 8 are respectively connected to the rear portion 52 of the delivery chamber 5. A plurality of delivery outlets 55 are provided on the front side of the front portion 51 of the delivery chamber 5, and each delivery outlet 55 is opened toward the bottom of the delivery device 100 so as to deliver the detergent mixture outward; preferably, a plurality of delivery outlets 55 are arranged at intervals along the left and right directions on the lower side wall of the front side of the front portion 51 of the delivery chamber 5, and each delivery outlet is connected to the outside of the delivery chamber 5, so that the detergent mixture can be evenly sprayed outward through each delivery outlet 55 to achieve a waterfall-like spraying effect.

[0057] In order to achieve the purpose of allowing the detergent and incoming water flowing into the front part 51 of the delivery chamber 5 to flow into the rear part 52, the following specific arrangements are made: a notch is provided in the middle part of the retaining rib 53, and the notch constitutes a water passage 54 connecting the front part 51 and the rear part 52, so as to achieve the effect of allowing the detergent and incoming water flowing into the rear part 52 to flow into the front part and be delivered outward through the delivery outlet 55 opened on the front side of the front part 51.

[0058] In the embodiment of the present invention, in order to improve the water flow efficiency and prevent liquid residue in the delivery chamber, the following settings are made:

[0059] The retaining ribs 53 on both sides of the water outlet 54 are arranged in an "eight" shape, so that the retaining ribs 53 on both sides of the water outlet 54 gradually extend from the side wall of the delivery chamber 5 toward the middle and toward the front side, so as to use the inclined extending retaining ribs 53 to guide the liquid in the rear part 52 to converge and flow toward the central water outlet 54.

[0060] At the same time, the upper surface of the lower cover 102 constituting the bottom wall of the delivery chamber 5 is arranged to be an inclined surface which gradually slopes downward from the rear side to the front side of the delivery device 100, so that the liquid flowing into the delivery chamber 5 is driven by gravity to flow toward the delivery outlet 55 on the front side, thereby ensuring that all the liquid in the delivery chamber 5 can flow out from the delivery outlet 55, effectively avoiding the occurrence of liquid residue in the chamber.

[0061] In addition, in the embodiment of the present invention, in order to improve the efficiency of detergent dispensing and improve the mixing uniformity before detergent dispensing, it is necessary to mix the detergent flowing into the dispensing chamber 5 and the incoming water flow to form a detergent mixed liquid; in order to achieve the above-mentioned effect, the following settings are made: a mixing liquid structure 9 is installed at the water outlet 54, and the mixing liquid structure 9 is used to fully mix all the detergent and the incoming water flow that pass through the water outlet 54 and are dispensed outward, and then the detergent mixed liquid is formed and then dispensed outward through the dispensing outlet 55, so as to achieve the effect that the dispensing device 100 dispenses the detergent mixed liquid outward and the washing machine can use the detergent mixed liquid to perform essence washing on the clothes in the barrel.

[0062] Preferably, the liquid mixing structure 9 is a liquid mixing impeller 91 installed at the water outlet 54 and rotatable around a horizontal rotating axis extending left and right; the axis of the liquid mixing impeller 91 is horizontally arranged and extends in the left and right directions, and the liquid mixing impeller 91 includes a plurality of blades radially protruding and extending outward at different radial directions along the axis, and each blade is symmetrically arranged relative to the axis; the extension length of the blades of the liquid mixing impeller 91 in the axial direction is equal to the left and right widths of the water outlet 54, and they are assembled in a corresponding overlapping manner, so that the liquid mixing impeller 91 is exactly installed at the water outlet 54, so that the liquid flowing through the water outlet 54 can push the liquid mixing impeller 91 to rotate around the axis, and then the rotating liquid mixing impeller 91 is used to stir the incoming water flow and detergent flowing through, and mix the two to form a detergent mixed liquid.

[0063] In the embodiment of the present invention, the bottom of the liquid storage chamber 2 is connected to the liquid inlet 37 of the liquid passage chamber 31 of the delivery module 3 through the liquid inlet pipeline 7, so as to supply the detergent in the liquid storage chamber 2 to the liquid passage chamber; preferably, a plurality of liquid storage chambers 2 can be arranged on the housing 10, and each liquid storage chamber 2 is connected to the liquid inlet pipeline 7 through a control valve structure, so that each liquid storage chamber 2 can respectively use the delivery module 3 to extract and deliver the corresponding different stored detergents. The above-mentioned control valve structure can be any existing control valve structure that can realize the selective connection and disconnection of multiple liquid storage chambers 2 with the same liquid inlet pipeline 7; for example: a two-position three-way valve, two control valves, etc. (not indicated in the drawings).

[0064] The embodiment of the present invention also introduces a control method of the above-mentioned detergent dispensing device, which includes:

[0065] When the detergent is added, an intermittent inlet water flow passes through the inlet waterway;

[0066] When the inlet water flows through the inlet waterway, the water pressure of the inlet water flow drives the diaphragm to expand toward the liquid inlet cavity side, and the medium in the liquid inlet cavity is squeezed and discharged outward from the liquid outlet;

[0067] When no water flows through the water inlet path, the diaphragm is no longer pushed by the water pressure and resets to the water inlet cavity side under the elastic force, forming a negative pressure in the liquid inlet cavity. The detergent in the liquid storage cavity is drawn into the liquid inlet cavity from the liquid inlet port by the negative pressure.

[0068] In the embodiment of the present invention, when the detergent is added, the water inlet valve of the water inlet waterway is opened at intervals;

[0069] The water inlet valve opens for a set time t1 and then closes for a set time t2;

[0070] When the set opening time t1 is used, the water pressure of the water flow in the water inlet waterway pushes the diaphragm to expand and move toward the liquid inlet cavity, squeezing the detergent in the liquid inlet cavity to flow out from the liquid outlet;

[0071] When the closing setting time t2 is used, no water flows through the water inlet waterway, the diaphragm loses the water pressure push and is reset to the water inlet chamber side by the elastic reset force, and negative pressure is formed in the liquid inlet chamber to draw the detergent in the liquid storage chamber into the liquid inlet chamber.

[0072] Preferably, the opening setting time t1 of each water inlet valve opening is the same or different setting time length, and the closing setting time t1 of each water inlet valve closing is the same or different setting time length;

[0073] Further preferably, the set opening time t1 of each water inlet valve opening gradually increases, and the set closing time t1 of each water inlet valve closing gradually decreases.

[0074] In the embodiment of the present invention, when the second water inlet valve 142 is intermittently opened, the first water inlet valve 141 can be controlled to be synchronously and staggeredly opened intermittently, so that the first water inlet valve 141 is closed when the second water inlet valve 142 is opened, so that when the delivery module 3 squeezes and delivers detergent into the delivery chamber 5, the main water inlet waterway 11 does not flow water into the delivery chamber, and when the delivery module 3 does not squeeze and deliver detergent into the delivery chamber 5, the main water inlet waterway 11 again flows water into the delivery chamber 5 to rinse and mix the detergent, thereby preventing the situation in which the water pressure in the delivery chamber 5 is too high due to the inflow of water into the main water inlet waterway 11 and the detergent in the liquid chamber 31 cannot be squeezed and delivered into the delivery chamber 5.

[0075] Of course, the first water inlet valve 141 can also be controlled to be in an open state at all times during the intermittent opening and closing of the second water inlet valve 142, so that the detergent squeezed into the delivery chamber 5 can be promptly washed away and delivered by the water flow flowing into the autonomous water inlet waterway 11 without considering the problem of water pressure diversion, thereby ensuring sufficient mixing of the detergent and the water flow.

[0076] In the embodiment of the present invention, the detergent flowing out of the liquid inlet chamber 31 and the inlet water flow flowing out of the inlet water path 1 flow into the delivery chamber 5 together; the detergent in the delivery chamber 5 and the inlet water flow flow through the mixing liquid impeller 91 at the same time, driving the mixing liquid impeller to rotate, and the rotating mixing liquid impeller is used to stir the inlet water flow of the detergent box to mix and form a detergent mixed liquid; the detergent mixed liquid flows out from the delivery outlet 55 of the delivery chamber 5, achieving a significant technical progress of fully premixing the detergent and the inlet water flow to form a detergent mixed liquid for outward essence washing, improving the mixing uniformity of the detergent, and reducing the detergent loss.

[0077] In an embodiment of the present invention, a washing machine is also introduced, including a washing tub for providing a space for accommodating clothes, with a tub opening arranged on the top; a pan seat 200, fixed on the outer shell of the washing machine, located above the washing tub, and having a clothing delivery opening coaxially opened toward the tub opening of the washing tub; a delivery device 100 as described above, the delivery device 100 is installed on the pan seat 200, and the delivery outlet 55 of the delivery device 100 is arranged toward the inner circumference of the pan seat 200 and the tub opening of the washing tub, so that the detergent mixture sprayed outward from the delivery outlet 55 of the delivery device 100 is evenly sprayed into the washing tub, and is evenly sprayed and contacted with the clothes contained in the washing tub, thereby achieving the effect of essence washing the clothes in the washing tub with the detergent mixture.

[0078] In an embodiment of the present invention, the base 200 is provided with an opening groove recessed inward at the rear side of the clothing loading port, and the loading device 100 is installed inside the opening groove; the loading outlet 55 of the loading device 100 extends from the slot of the opening groove to the clothing loading port, and the loading outlet 55 of the loading device 100 is arranged toward the top barrel opening of the washing barrel, so that the detergent mixture sprayed outward from the loading outlet 55 of the loading device 100 is sprayed into the washing barrel in a fan shape from back to front, covering and spraying various places in the washing barrel, thereby achieving the effect of uniformly contacting the clothes in the barrel and using the sprayed detergent mixture to perform essence washing on the clothes.

[0079] In an embodiment of the present invention, the washing machine can also be a drum-type washing machine, which is provided with an inner drum rotating around a horizontal central axis, and the internal space of the inner drum constitutes a washing tub; a drum opening is provided at one end of the inner drum, and a delivery outlet 55 of the above-mentioned delivery device 100 is provided at the drum opening, and the delivery outlet 55 of the delivery device 100 is arranged toward the inside of the drum to evenly spray the detergent mixture from the drum opening into the drum, thereby achieving an effect of evenly contacting the clothes in the drum and purifying and washing the clothes with the sprayed detergent mixture (not indicated in the drawings).

[0080] Of course, the washing machine in the embodiment of the present invention can also be any other existing clothing processing device that can process clothes, and the above-mentioned dispensing device 100 can be installed on the clothing processing device, and the dispensing outlet 55 of the dispensing device 100 can be used to spray the detergent mixture into the clothing processing device to process the clothes to be processed.

[0081] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A detergent dispensing device, comprising: Inlet waterway, controllable on / off introduction of inlet water flow; A liquid storage chamber, used for storing detergent; Putting in a water channel to connect the liquid storage chamber with the water inlet channel; It is characterized in that The delivery module is provided with an elastic diaphragm, which divides the internal chamber of the delivery module into a water chamber and a liquid chamber. The elastic diaphragm can be elastically deformed to expand or contract toward the chambers on both sides under the action of the pressure difference on both sides; The water flow chamber is connected in series to the water delivery channel, and the water flow chamber is connected to the water inlet channel. The changing water pressure generated by the on-off water flow flowing through the water inlet channel drives the elastic diaphragm to produce reciprocating expansion and contraction deformation, so that the detergent stored in the liquid storage chamber is extracted into the liquid flow chamber and delivered into the water inlet channel.

2. A detergent dispensing device according to claim 1, characterized in that: A water inlet valve is provided on the water inlet side of the water inlet channel to control the on and off of the water inlet flow; the water inlet valve is located upstream of the connection between the water inlet channel and the water passage chamber; The connection point between the water inlet waterway and the water passage cavity is located upstream of the connection point between the water inlet waterway and the delivery waterway.

3. A detergent dispensing device according to claim 1 or 2, characterized in that: The outlet of the water inlet channel is connected to the delivery chamber, and the delivery chamber is provided with a mixing structure, which mixes the detergent flowing into the delivery chamber with the water inlet flow to form a detergent mixed liquid; A delivery outlet is arranged on one side of the delivery cavity for delivering the detergent mixture outwards.

4. A detergent dispensing device according to claim 1 or 2, characterized in that: The water inlet chamber is provided with a pressure relief port, which is connected to the water inlet waterway through a pipeline; Preferably, the pressure relief port is connected to the delivery chamber via a pipeline; Further preferably, the diaphragm is connected to an elastic member, and two ends of the elastic member are respectively connected to the module and the inner wall of the chamber, so as to provide reset movement for the diaphragm and drive the diaphragm to remain in the reset position.

5. A detergent dispensing device according to any one of claims 1 to 4, characterized in that: The detergent dispensing device comprises a housing, and the bottom of the housing forms a dispensing cavity; A vertically extending baffle is provided in the delivery chamber, which divides the delivery chamber into two parts, front and rear. A water outlet connecting the front and rear parts is provided in the middle of the baffle, and a mixing impeller that can rotate around a horizontal rotating shaft extending left and right is installed at the water outlet. The outlet of the delivery waterway, the outlet of the water inlet waterway, and the outlet of the pipeline connected to the pressure relief port are all connected to the rear part of the delivery chamber, and a delivery outlet is opened on the front side of the front part of the delivery chamber.

6. A detergent dispensing device according to any one of claims 1 to 5, characterized in that: It comprises a plurality of liquid storage chambers, each of which stores different detergents; The outlet of each liquid storage chamber is switchably connected to the liquid inlet of the liquid passage chamber via a control valve structure; The liquid outlet of the liquid cavity is connected with the delivery cavity through the delivery water channel; Preferably, the liquid inlet and liquid outlet of the liquid inlet cavity are respectively provided with a one-way valve structure that can only control the one-way flow of the fluid, for controlling the detergent to flow into the liquid inlet cavity from the liquid inlet and to flow out of the liquid inlet cavity from the liquid outlet.

7. A detergent dispensing device according to any one of claims 1 to 6, characterized in that: The water inlet waterway is bifurcated into two branches from the water inlet side to the downstream direction, namely, the main water inlet waterway and the control water inlet waterway; The water outlet of the main water inlet waterway is connected to the rear part of the delivery chamber, and the water outlet of the control water inlet waterway is connected to the water inlet of the water passage chamber; Preferably, the main water inlet waterway and the control water inlet waterway are respectively provided with control valves for controlling the on-off of the branch waterway.

8. A control method for the detergent dispenser according to any one of claims 1 to 7, characterized in that: When the detergent is added, an intermittent inlet water flow passes through the inlet waterway; When the inlet water flows through the inlet waterway, the water pressure of the inlet water flow drives the diaphragm to expand toward the liquid inlet cavity side, and the medium in the liquid inlet cavity is squeezed and discharged outward from the liquid outlet; When no water flows through the water inlet path, the diaphragm is no longer pushed by the water pressure and resets to the water inlet cavity side under the elastic force, forming a negative pressure in the liquid inlet cavity. The detergent in the liquid storage cavity is drawn into the liquid inlet cavity from the liquid inlet port by the negative pressure.

9. A control method for a detergent dispensing device according to claim 8, characterized in that: When adding detergent, the water inlet valve of the water inlet circuit is opened at intervals; The water inlet valve opens for a set time t1 and then closes for a set time t2; When the set opening time t1 is used, the water pressure of the water flow in the water inlet waterway pushes the diaphragm to expand and move toward the liquid inlet cavity, squeezing the detergent in the liquid inlet cavity to flow out from the liquid outlet; When the closed setting time t2 is used, no water flows through the water inlet waterway, the diaphragm loses the water pressure push and is reset to the water inlet chamber side by the elastic reset force, and negative pressure is formed in the liquid inlet chamber to draw the detergent in the liquid storage chamber into the liquid inlet chamber; Preferably, the opening setting time t1 of each water inlet valve opening is the same or different setting time length, and the closing setting time t1 of each water inlet valve closing is the same or different setting time length; Further preferably, the set opening time t1 of each water inlet valve opening gradually increases, and the set closing time t1 of each water inlet valve closing gradually decreases.

10. A control method for a detergent dispensing device according to claim 9, characterized in that: The detergent flowing out of the liquid inlet cavity and the water flow flowing out of the water inlet waterway flow into the delivery cavity together; The detergent in the delivery chamber and the inlet water flow simultaneously flow through the liquid mixing impeller, driving the liquid mixing impeller to rotate, and the rotating liquid mixing impeller stirs the inlet water flow of the detergent box to form a detergent mixed liquid; The detergent mixture flows outward from the delivery outlet of the delivery chamber.

11. A washing machine comprising: A washing tub is used to provide a space for accommodating clothes, and a tub opening is provided on the top; A tray seat is fixed on the outer shell of the washing machine, is located above the washing tub, and has a clothing loading opening opened toward the washing tub; Features: The detergent dispensing device as described in any one of claims 1 to 10 is installed on a disc seat, and the dispensing outlet of the detergent dispensing device is opened toward the barrel opening of the washing barrel, and is used to dispense the formed detergent mixture into the washing barrel.

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