WO2024001007A1

WO2024001007A1 - Additive delivery apparatus and washing machine

Info

Publication number: WO2024001007A1
Application number: PCT/CN2022/133715
Authority: WO
Inventors: 黄涛; 黄本财
Original assignee: 青岛海尔洗涤电器有限公司; 海尔智家股份有限公司
Priority date: 2022-06-30
Filing date: 2022-11-23
Publication date: 2024-01-04

Abstract

The present invention provides an additive delivery apparatus and a washing machine. The delivery apparatus comprises: a water supply channel, used for supplied water to flow through; a delivery unit, used to deliver an additive to the water supply channel; a pressure relief structure, disposed on the water supply channel and placing an interior of the water supply channel in communication with an external atmosphere, for pressure relief and ventilation; a liquid outlet structure, an outlet of the water supply channel being connected to the liquid outlet structure, and the liquid outlet structure being used to deliver a mixture of the additive and water. By means of providing a pressure relief structure in a water channel of a delivery apparatus, excess pressure in the water channel can be discharged outwards from the pressure relief structure, so as to decrease carried pressure of an integrated water channel disposed on the delivery apparatus, thereby implementing overpressure protection for the water channel of the delivery apparatus.

Description

Additive delivery device and washing machine

Technical field

The present invention belongs to the technical field of clothing treatment equipment, and specifically relates to an additive dispensing device for a washing machine, and also relates to a washing machine equipped with the above additive dispensing device.

Background technique

Existing washing machines are generally equipped with a water tank for holding wash water. A rotatable washing drum is provided in the water tank. A dehydration hole is provided on the washing drum that connects the inside and outside of the washing tank, so that the washing water flowing into the water tank can be used for washing through the dehydration hole. There is an interactive flow inside and outside the drum to achieve the effect of the washing water being in contact with the load to be processed placed in the washing drum and using the washing water to process the load.

The additive delivery method of the above-mentioned existing washing machine is as follows: through the additive delivery device, the additive is delivered into the pipeline connected to the water tank of the washing machine, and then the added additive flows into the water tank of the washing machine along the pipeline. Therefore, the additives placed in the existing method are placed in the water tank of the washing machine and outside the washing tub, and cannot directly contact the load placed in the washing tub.

Then, when the washing machine executes the washing program, the added additives are mixed with the washing water flowing into the water tank. Part of the washing water mixed with additives flows into the washing drum through the dewatering hole and comes into contact with the load to be processed in the drum, so that it can be mixed into the washing machine. A small portion of the additive in the water comes into contact with the load and acts on it. Therefore, the traditional method of adding additives has the problems of low efficiency and waste of additives.

At the same time, in the traditional way of adding additives, in order to ensure that the additives placed between the water tank and the washing drum are in contact with the load to be processed in the washing drum, a large amount of water needs to be flowed into the water tank until the water level of the wash water in the water tank reaches the level of the water tank. Only when it is higher than the washing drum can the washing water flow into the washing drum through the dewatering hole and the additives be in contact with the load in the washing drum. Therefore, the traditional way of adding additives still has the problem of too much water for adding additives.

In order to solve the above problems, the applicant has previously proposed a method of directly putting an additive mixture into the drum of the washing machine, using the additive mixture to directly act on the clothes in the drum, and using the washing machine to wet the clothes with a high additive concentration that are soaked by the mixture. Technical solution for efficient washing of clothes.

However, with the above scheme, the mixing effect of the additives and the incoming water in the feeding device is poor, the uniformity of the mixed liquid put into the cylinder is very low, the clothes in the cylinder cannot be fully mixed with the additives, and the cleanliness of the washed clothes is poor. Problem; also, since the additives and incoming water are mixed directly in the integrated waterway set in the upper cover of the delivery device, a large negative pressure will be formed inside the integrated waterway due to the suction effect, which can easily cause the waterway in the upper cover to be blocked. damage, causing water leakage and other problems.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The present invention provides an additive delivery device to fully mix the additives and water in the water supply waterway, and the mixed liquid is directly released for use; and One purpose is to provide an additive dosing device to realize automatic pressure relief adjustment of the internal integrated water circuit.

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

The invention provides an additive delivery device, which includes a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; and a pressure relief structure located on the water supply waterway to connect the inside of the water supply waterway with the external atmosphere. The pressure relief and ventilation are connected; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, and is used to put the mixed additives and water.

Furthermore, the additive dispensing device includes a water box, and the water supply water path is integrated on the upper cover of the water box. The water box is provided with a cavity for installing a drawer that can be pulled out. The ventilation port is provided on the lower side of the upper cover. The air port penetrates the upper cover part below the bottom wall of the water supply waterway, connecting the water supply waterway with the internal cavity of the water box.

Furthermore, the front side of the water box is provided with a pull-out opening for the liquid storage box to be pulled out and installed. The pull-out opening connects the internal cavity of the water box to the outside atmosphere.

Furthermore, the pressure relief structure includes a ventilation port provided on the water supply waterway to connect the inside of the water supply waterway with the outside atmosphere. A one-way pressure relief valve is installed at the ventilation port so that the ventilation port can only be used when the pressure inside the water supply waterway passes. Open when large.

Further, the pressure relief valve includes an installation sleeve, which protrudes downward and is located on the lower side of the upper cover of the additive delivery device and is coaxially connected to the ventilation port; the valve core corresponds to the closed ventilation port and can be moved downward to open. Ventilation port; a spring, one end of which is against the lower end of the valve core, and the other end is connected to the installation sleeve, providing elastic force to the valve core to move upward and seal the ventilation port.

Further, the upper end of the installation sleeve is provided with an annular sealing bracket, and at least one sealing ring is installed between the outer periphery of the sealing bracket and the inner wall of the ventilation port; the lower end of the installation sleeve is provided with a base, and the upper side of the base is connected to the lower end of the spring.

Further, the base is in the shape of a disk, and the lower end of the installation sleeve is provided with a circle of radially protruding installation ribs. The outer peripheral part of the disk-shaped base is located above the installation ribs, and the outer peripheral wall is offset against the inner wall of the installation sleeve; the center of the disk-shaped base is provided with There is an installation through hole that penetrates up and down; the upper side of the disc-shaped base is provided with two inner and outer circles of coaxial annular ribs with unequal diameters, and the lower end of the spring is sleeved between the inner and outer annular ribs.

Further, the valve core includes a blocking portion corresponding to blocking the inner circumferential through hole of the annular mounting bracket. The blocking portion is provided with at least one sealing ring on its outer periphery, and the sealing ring is located between the blocking portion and the mounting bracket.

Furthermore, the outer periphery of the mounting bracket is provided with a downwardly extending connecting portion, and the connecting portion is connected to the base.

Furthermore, the lower part of the inner peripheral wall of the mounting bracket has a frustum shape with a radial dimension gradually narrowing from bottom to top.

Furthermore, the valve core also includes a limit rod, which is coaxially arranged with the installation sleeve. The upper end is connected to the blocking part, and the lower end is inserted into the installation through hole in the center of the base. The spring is coaxially sleeved on the outer periphery of the limit rod, and the upper end is connected to the sealing part. The lower side of the plugging part is in contact with each other, and the lower end is in contact with the upper side of the base.

Further, the pressure relief structure is located in the water supply waterway upstream of the liquid suction port connected between the delivery unit and the water supply waterway.

Another object of the present invention is to provide a washing machine equipped with the above-mentioned additive delivery device, so as to achieve the purpose of directly delivering additives into the washing tub, and thereby achieve the purpose of directly contacting the delivered detergent with the load to be processed in the washing tub. Improve detergent utilization.

The invention also discloses a washing machine, which includes a washing tub for holding the load to be processed, any one of the above-mentioned additive delivery devices, the inlet of the water supply channel of the additive delivery device is connected with the water inlet pipe of the washing machine, and the additive delivery device The liquid outlet structure of the device sprays toward the washing tub of the washing machine.

Further, the liquid outlet structure is provided on the casing, and/or door body, and/or water tank, and/or window mat of the washing machine. The spray outlet of the liquid outlet structure is opened toward the inside of the washing tub. The additive solution sprayed by the liquid outlet structure Spray directly into the washing tub.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the existing technology:

1. Through the above-mentioned device, the present invention allows the additive to be directly injected outward through the waterway provided on the injection device, avoiding the flow of the additive through the water box, which not only reduces the flow path of the additive, but also reduces the amount of flushing water required for the additive injection. Greatly improve the additive utilization rate. At the same time, the additive solution flowing out from the water channel is directly sprayed through the liquid outlet structure, which can increase the coverage area of the sprayed additive solution, so that the additive solution can be directly sprayed onto the load to be processed deep in the washing tub.

2. At the same time, the present invention provides the above-mentioned additive delivery device on the washing machine, so that the additives of the washing machine flow directly to the liquid outlet structure through the water supply waterway, and are directly sprayed into the washing tub from the liquid outlet structure, thereby realizing that the additives of the washing machine do not pass through the water box, Instead of passing through the water tank outside the washing drum, it flows directly into the washing drum from the water channel of the delivery device and is sprayed to the load to be processed, thereby achieving the purpose of directly spraying the additive solution to the load to be processed in the washing drum.

3. In addition, by arranging a pressure relief structure in the waterway of the delivery device, excessive pressure in the waterway can be discharged from the pressure relief structure, thereby reducing the pressure of the integrated waterway on the delivery device, and realizing the need for delivery. Install over-pressure protection for water circuits.

In addition, the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an additive delivery device to achieve the purpose of directly delivering additives through the water supply waterway; at the same time, the present invention also provides an additive delivery device , in order to achieve the purpose of fully mixing the additives and water in the water supply waterway and improving the mixing uniformity of the additives in the mixed liquid sprayed from the liquid outlet structure.

The invention provides an additive delivery device, which includes: a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; a multi-stage mixing chamber connected in series is provided on the water supply waterway to at least partially mix Each chamber is equipped with a turbine, and the liquid mixture composed of additives flowing through the mixing chamber and the incoming water drives the turbine to rotate, mixing the added additives with the incoming water; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, for Add the mixed additives and water.

Further, the opposite sides of the mixing chamber are respectively provided with an inlet and an outlet, and the turbine is arranged close to the inlet; the axis of the inlet coincides with or is parallel to any tangential direction of the turbine.

Furthermore, the mixing chamber is square, and the inlet is located at any corner of the square mixing chamber; the side wall of the square mixing chamber at the inlet is provided with guide ribs protruding and extending into the mixing chamber, and the guide ribs are along any tangential direction of the turbine. Extend and maintain a distance from the side wall of the square mixing chamber, so that the liquid flowing in from the inlet can flow into the mixing chamber along the tangential direction of the turbine through the above distance.

Furthermore, the side wall at the corner of the square mixing chamber with the protruding end of the guide rib facing one side is a water guide portion extending in an arc direction, and the arc-shaped water guide portion is coaxially arranged with the turbine shaft.

Furthermore, the extension length of the turbine blades is less than the distance between the end of the guide rib and the turbine rotating shaft, and is greater than the vertical distance between the extension direction line of the guide rib and the turbine rotating shaft.

Further, the turbine includes a shaft hole part, the central through hole of the annular shaft hole part is coaxially plugged into the rotating shaft provided on the water supply waterway; a plurality of blades, each blade is arranged around the ring at equal intervals and at an angle. The outer peripheral walls of the shaft hole part are connected; the blade is a columnar shape that protrudes and extends along the radial direction of the annular shaft hole part, and the middle part of the columnar blade is provided with a protruding part with an enlarged radial size.

Further, the blades are sequentially composed of a connecting part, a protruding part, and an extending part along the extending direction. The three parts are coaxially arranged and connected in sequence to form a columnar blade extending radially along the turbine shaft; the radial width of the protruding part is larger than the connecting part. and the radial width of the extension.

Furthermore, both ends of the protruding part are connected to the connecting part and the extending part respectively, and the protruding part gradually narrows its radial size from the middle to both ends, forming an elliptical-like structure with narrow ends and a wide middle part; preferably, the protruding part The top surface of the portion is provided with at least one upwardly protruding convex portion extending along the circumferential direction of the turbine;

Further preferably, the radially widest point of the protruding portion is located close to the extension portion, and the radial narrowing rate of the portion connecting the protruding portion and the extending portion is greater than the radial narrowing rate of the portion connecting the protruding portion and the connecting portion.

Further, the bottom wall of the mixing chamber is provided with a rotating shaft protruding upward, and the upper end of the rotating shaft is spaced apart from the top wall of the mixing chamber; the center of the annular shaft hole of the turbine is provided with a central through hole that penetrates up and down, and the rotating shaft corresponds to the same The shaft is inserted into the central through hole, and the thickness of the annular shaft hole is greater than the distance between the upper end of the rotating shaft and the top wall of the mixing chamber and less than the axial height of the rotating shaft; preferably, the hole wall of the central through hole of the annular shaft hole is designed There is at least one ring of radially protruding annular limiting ribs, and the inner circumferential radial size of the annular limiting rib is equal to the radial size of the outer wall of the rotating shaft.

Further, the two mixing chambers connected on the water supply waterway are the first mixing chamber and the second mixing chamber respectively. The first mixing chamber is provided with a first turbine, and the second mixing chamber is provided with a second turbine; The outlet directly constitutes the inlet of the second mixing chamber; the axes of the inlet and outlet of the first mixing chamber and the axes of the inlet and outlet of the second mixing chamber are respectively arranged perpendicularly.

Further, the inlet and outlet of the first mixing chamber are respectively located at the same end of the left and right side walls of the square chamber, and the first turbine is provided at the other end of the first mixing chamber; the inlet and outlet of the second mixing chamber are respectively located at the square chamber. At different ends of the left and right side walls of the chamber, the second turbine is disposed at an end of the second mixing chamber close to the inlet.

3. In addition, by setting up multi-stage mixing chambers on the water supply waterway, and setting up multi-stage mixing structures in the multiple mixing chambers, the effect of multi-stage mixing of additives and water can be achieved, thereby improving the mixing of additives and water. Uniform and effective washing machines enhance the effectiveness of essence washing.

In addition, the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a method of adding additives to achieve the purpose of uniformly mixing the incoming water and detergent and then directly spraying it into the washing tub to wash the clothes; at the same time , the present invention also provides an additive delivery method to achieve the purpose of uniformly spraying and delivering the incoming water and detergent mixture to the clothes in the washing machine barrel.

The invention provides a method for adding additives to a washing machine, which includes: after the incoming water flow and the added additives are mixed in the water supply waterway, the mixed liquid is directly sprayed and put into the washing drum; during the additive adding process, the washing drum rotates intermittently; During the shutdown period of each washing drum, the additives are sprayed directly into the washing drum in batches in the form of mixed liquid.

Further, obtain the additive dosage V;

Divide the additive dosage V into n parts;

The washing drum works in the form of intermittent rotation. During each stop period of the washing drum, a mixed solution containing an amount Vn of additives is directly sprayed into the washing drum;

Preferably, the additive dosage V is divided equally into n parts, and the amount Vn of each part is V/n; it is also possible to divide the additive dosage V unevenly.

Further, the additive dosage V is determined by one or more of the weight, material, dry humidity of the clothes to be washed by the washing machine, and the laundry processing program to be executed by the washing machine; or, it is directly selected by the user; Preferably, the above-mentioned n is the corresponding preset value called based on the additive dosage V.

Further, the direct spraying and dropping of the mixed liquid containing an amount of Vn additives into the washing tub specifically includes the following:

Pump the Vn additive into the waterway;

Water is poured into the water channel for m seconds;

The incoming water and the additives pumped into the delivery waterway are mixed using the mixing structure set up in the delivery waterway to form a mixed liquid;

The mixed liquid is sprayed into the rotating drum from the water outlet structure provided at the outlet end of the water supply waterway;

Preferably, the above-mentioned m is the corresponding preset value called based on the amount of additive Vn that needs to be delivered this time.

Further, the incoming water and the additives pumped into the delivery waterway flow through the mixing chamber of the delivery waterway, and the liquid drives the turbine set in the mixing chamber to rotate around its axis, stirring the additives in the turbine chamber and mixing with the incoming water.

Further, air is fed into the incoming water flow to form an incoming water flow containing air particles; the incoming water flow containing air particles will pump the additives put into the waterway into the mixing chamber, and then use the mixing structure in the mixing chamber to mix the additives containing them. The incoming water flow of air particles mixes with the additives to stimulate the mixed liquid to form foam, forming a mixed liquid containing foam particles.

Further, during the process of adding additives, the intermittent rotation of the washing tub includes the following: alternately executing a rotation period and a stop period; in the rotation period, the washing tub rotates at the set speed v for t1 seconds; in the stop period, the washing tub Stop spinning for t2 seconds.

Furthermore, the duration t2 of each stalling period is the preset value called based on the additive dosage Vn this time; the rotation speed v and t1 of each rotation period are the preset values called based on the additive dosage Vn of the next stalling period. value.

Furthermore, as the additive dosing process continues to run, the running time t1 of each rotation period gradually becomes longer and the set rotation speed v gradually becomes smaller; the duration t2 of each rotation period gradually becomes shorter; preferably, as the additive dosing process As the process continues to run, the additive dosage Vn in each rotation period gradually becomes smaller.

Furthermore, the liquid outlet structure is provided on the casing, and/or door body, and/or water tank, and/or window mat of the washing machine. The injection outlet of the liquid outlet structure is opened toward the inside of the washing tub. The additive solution sprayed by the liquid outlet structure Spray directly into the washing tub.

3. In addition, the additive mixture is added in batches during the stoppage of the rotating drum to improve the mixing uniformity of the additive mixture and the clothes in the rotating drum, thereby achieving technological progress that greatly improves the washing effect of the washing machine; at the same time, through The additive mixture is poured into the stalled gap of the inner drum, which increases the distribution range of the additive mixture in the rotating drum, thereby increasing the amount of clothing covered by the additive mixture.

In addition, the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an additive delivery device to achieve the purpose of directly delivering additives through the water supply waterway; at the same time, the present invention also provides an additive delivery device , to achieve foaming stimulation of the additives and water in the water supply waterway, so that the additives and water form a mixed liquid containing foaming particles, so that the additive mixed liquid containing foaming particles can be put into the washing machine, thereby improving the effect of the added additives on clothes. The purpose of processing effects.

The invention provides an additive delivery device, which includes: a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; and an air extraction structure for mixing air into the water supply flowing through the water supply waterway. The water supply water flow and the added additives are used to stimulate foaming; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, is used to put the mixture with foam.

Further, the air extraction structure includes a Venturi tube, which is connected in series to the water supply waterway. The negative pressure suction port of the Venturi tube is connected to the external atmosphere, and the external air is self-sufficient under the action of the water supply flow flowing through the Venturi tube. It enters the suction port and mixes with the water supply water to form a water flow containing air particles.

Further, the additive dispensing device includes a water box, and the water supply water path is integrated on the upper cover of the water box. There is a cavity in the water box for installing a drawer that can be pulled out, and the negative pressure suction port of the venturi tube faces downwards. It is opened and communicates with the internal cavity of the water box through the corresponding hollow opening provided on the lower side of the upper cover of the water box.

Further, a liquid suction port connected to the delivery unit is provided on the water supply waterway, and a venturi tube is located upstream of the liquid suction port.

Further, the water supply waterway is provided with a plurality of liquid suction ports, each liquid suction port is located at the liquid suction part of the water supply waterway, and the venturi tube is located upstream of the liquid suction part.

Further, a downwardly recessed installation groove is provided on the water supply waterway, and the Venturi tube is installed in the installation groove. The bottom of the installation groove is provided with an opening that penetrates up and down, and the opening is opposite to the negative pressure suction port provided on the Venturi tube. Through, the opening is located at the lowest point of the water supply waterway.

Further, the installation groove is a semi-cylindrical groove extending horizontally and opening upward, and the opening is an arc-shaped notch opened on the side wall of the semi-cylindrical groove and extending in the circumferential direction.

Further, the portion of the installation groove extends beyond the water outlet end of the Venturi tube and forms a downstream water supply waterway portion, and the excess portion of the installation groove extends axially along the water outlet of the Venturi tube.

Furthermore, it also includes a mixing structure, which is provided in the water supply waterway and mixes the water supply water flow mixed with air and the additives put into the water supply waterway to stimulate the generation of foam.

Further, the mixing structure is provided downstream of the liquid suction port connected between the delivery unit and the water supply waterway.

Furthermore, the water supply waterway upstream of the Venturi tube is also equipped with a pressure relief structure to connect the inside of the water supply waterway with the external atmosphere for pressure relief and ventilation.

3. In addition, by setting up an air extraction structure on the water supply waterway, air is introduced into the water supply waterway when it flows through it, so that air particles are mixed into the water flow flowing through the water supply waterway, so as to utilize the incoming water containing air particles. The additive mixture containing foaming particles is stimulated to foam and obtain better washing effect, thereby achieving significant technological progress in improving the activity of additives and enhancing the washing effect of the added additive mixture on clothes.

At the same time, the invention has a simple structure, remarkable effects, and is suitable for popularization and use.

Specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of drawings

The drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic 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 in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

1 to 3 are schematic structural diagrams of a washing machine in an embodiment of the present invention;

Figure 4 is a schematic structural diagram of the additive delivery device with the first part of the upper cover removed in the embodiment of the present invention;

Figure 5 is a schematic top structural view of the additive delivery device in one embodiment of the present invention;

Figure 6 is a schematic structural diagram of the turbine in the embodiment of the present invention;

Figure 7 is a schematic structural diagram of the A-A cross-section of Figure 5 in an embodiment of the present invention;

Figure 8 is a schematic structural diagram of the B-B cross-section of Figure 5 in an embodiment of the present invention;

Figure 9 is a schematic structural diagram of the C-C cross-section of Figure 5 in an embodiment of the present invention;

Figure 10 is an enlarged structural schematic diagram of E in Figure 7 in different embodiments of the present invention;

Figure 11 is an enlarged structural schematic diagram of F in Figure 8 in different embodiments of the present invention;

Figure 12 is a schematic top structural view of an additive delivery device in another embodiment of the present invention;

Figure 13 is a schematic structural diagram of the C-C cross-section of Figure 12 in an embodiment of the present invention;

Figure 14 is a flow chart of the additive delivery process in the embodiment of the present invention.

Description of the main components in the figure: 100. Dispensing device; 200. Water tank; 300. Washing drum; 400. Window pad; 500. Liquid discharge structure; 600. Conduit; 700. Spoiler structure; 1. Water supply channel; 2. Water Box; 3. Upper cover; 31. First part; 32. Second part; 4. Liquid storage chamber; 5. Liquid storage box; 6. Pump; 7. Connector; 11. Outlet; 12. Inlet; 13. Suction Liquid port; 14. Pressure relief valve; 15. Turbine; 16. Mixing chamber; 17. Rotating shaft; 18. Blade; 19. Venturi tube; 101. Water inlet part; 102. Ventilation part; 103. Liquid suction part; 104. Mixing part; 105. Liquid outlet; 141. Ventilation port; 142. Installation sleeve; 143. Base; 144. Valve core; 145. Bracket; 146. Spring; 1441. Blocking part; 1442. Sealing ring ; 1443. Annular rib; 1444. Limiting rod; 1431. Inner circumferential annular rib; 1432. Outer circumferential annular rib; 1433. Installation through hole; 1451. Seal ring; 1452. Connection part; 161. First mixing chamber; 162. Second mixing chamber; 163, third mixing chamber; 164, guide rib; 165, water guide part; 1611, inlet; 1612, outlet; 1621, inlet; 1622, outlet; 1631, inlet; 1632, outlet; 151, No. First turbine; 152, second turbine; 153, shaft hole; 154, annular limiting rib; 181, connecting portion; 182, protruding portion; 183, extension portion; 184, protruding portion; 191, negative pressure suction port ; 192. Installation slot; 193. Opening; 701. Spoiler ribs.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the invention in any way, but are intended to illustrate the concept of the invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following examples are used to illustrate the present invention. , but are not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or 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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

As shown in Figures 1 to 3, the embodiment of the present invention also introduces a washing machine, which includes: a water tank 200 for holding water. A rotatable drum for holding the load to be processed is installed in the water tank 200. The washing tub 300 is an additive dispensing device 100 for directly dispensing additives into the washing tub 300 . Through the above settings, the washing machine can realize the use effect of directly adding additives into the washing tub 300 and spraying the injected additives directly onto the load to be processed in the washing tub 300, thereby achieving significant technological progress in increasing the additive usage rate.

As shown in Figures 1 to 13, the additive delivery device 100 described in the embodiment of the present invention includes:

The water supply waterway 1 is used for the incoming water entering the additive delivery device 100 to flow through;

A delivery unit is used to deliver additives to the water supply waterway 1;

The outlet 11 of the water supply channel 1 is connected to the liquid outlet structure 500 , and the liquid outlet structure 500 is arranged toward the inside of the washing tub 300 of the washing machine. When adding the additive, a small amount of incoming water flows into the water supply waterway, so that the additive is mixed with a small amount of incoming water in the water supply waterway 1 to form an additive solution. The additive solution supplied by the water supply waterway 1 can be directly sprayed to the washing machine through the liquid outlet structure 500 On the load to be processed in the barrel 300, the utilization rate of the added additives is significantly improved.

Through the above device, the additive is directly injected outward through the waterway provided on the injection device 100, which avoids the additive flowing through the water box, which not only reduces the flow path of the additive, but also reduces the amount of flushing water required for additive injection, which greatly improves the efficiency of the additive. Additive utilization.

As shown in Figures 1 to 3, in the embodiment of the present invention, the water supply waterway 1 is integrated on the water box 2 of the additive delivery device 100, the outlet 11 of the water supply waterway 1 is located outside the water box 2, and the liquid outlet structure 500 is located on the outside of the water box 2. Outside the water box 2, the outlet 11 of the water supply channel 1 is connected to the liquid outlet structure 500 through the conduit 600. By integrating the water supply water channel 1 on the water box 2 of the additive dispensing device 100, the outlet 11 of the water supply water channel 1 is directly connected to the liquid outlet structure 500, so that the additive extracted through the water supply water channel 1 and the incoming water can be sprayed out together, thereby realizing the additive The dispensing device 100 does not pass through the water box part of the dispensing device 100, but directly performs the purpose of spraying out from the liquid outlet structure 500. Preferably, the liquid outlet structure 500 can be any nozzle structure described in the prior art, which has a spray outlet opened into the rotating drum of the washing machine, and is used to spray and drop the mixed liquid into the rotating drum of the washing machine.

As shown in Figures 1 to 8, in the embodiment of the present invention, a multi-stage mixing structure is provided in the water supply waterway 1 of the additive delivery device to form a vortex flow in the water supply waterway 1 to mix the added additives with the incoming water. ; Liquid outlet structure 500, the outlet of the water supply waterway 1 is connected to the liquid outlet structure 500, and is used to put the mixed additive and water.

By arranging a multi-stage mixing structure in the water supply waterway, the additives and water in the water supply waterway are fully mixed, thereby improving the mixing uniformity of the additive solution flowing out of the water supply waterway of the additive delivery device, and realizing the use of mixed liquid to clean the washing tub Significant technological progress in essence washing of underwear.

Embodiment 1

As shown in Figures 1 to 11, this embodiment introduces an additive delivery device, which includes: a water supply waterway 1 for water supply to flow through; a delivery unit for delivering additives to the water supply waterway 1; There are multi-stage mixing chambers 16 connected in series, and at least part of the mixing chambers 16 are respectively provided with a turbine 15. The liquid mixture composed of additives and incoming water flowing through the mixing chamber 16 drives the turbine 15 to rotate, and the added additives and the incoming water are rotated. Phase mixing; liquid outlet structure 500, the outlet 11 of the water supply water channel 1 is connected to the liquid outlet structure 500, and is used for dispensing the mixed additive and water.

By setting up multi-stage mixing chambers on the water supply waterway, and setting up multi-stage mixing structures in the multiple mixing chambers, the effect of multi-stage mixing of additives and water is achieved, thereby improving the mixing uniformity of additives and water, and effectively washing the washing machine. Improve the effect of essence wash.

As shown in Figures 4 to 11, in this embodiment, the inlet 1611 and the outlet 1612 are respectively provided on opposite sides of the mixing chamber 16 (taking the first mixing chamber 161 as an example for subsequent description), and the turbine 15 is provided close to at the inlet 1611, so that the additives and incoming water flowing into the mixing chamber 16 directly act on the turbine 15, and the turbine 15 is used to fully mix the inflowing mixed liquid; the axis of the inlet 1611 coincides with any tangential direction of the turbine 15, and At least part of the turbine 15 coincides with the area facing the inlet 1611, so that the turbine 15 can be directly driven to rotate by the water flow flowing in from the inlet 1611; at the same time, the inlet 1611 is used to coincide with the tangent line of the turbine 15, so that the inlet water flow flowing in from the inlet 1611 is along the tangential direction. The blades 18 acting on the turbine 15 further increase the driving force of the inlet water flow to drive the rotation of the turbine 15 and enhance the mixing effect of the turbine 15 on the mixed liquid.

In this embodiment, the mixing chamber 16 is square, and the inlet 1611 is located at any corner of the square mixing chamber 16; the side wall of the square mixing chamber 16 at the inlet 1611 is provided with guide ribs 164 protruding and extending into the mixing chamber 16. , the guide ribs 164 extend along any tangential direction of the turbine 15 and maintain a distance from the side walls of the square mixing chamber 16, so that the liquid flowing in from the inlet 1611 can flow into the mixing chamber 16 along the tangential direction of the turbine 15 through the above distance. at the turbine 15, thereby driving the turbine 15 to rotate around its axis to the greatest extent.

In this embodiment, the extension length of the blades 18 of the turbine 15 is less than the distance between the end of the guide rib 164 and the rotation axis 17 of the turbine 15, and is greater than the vertical distance between the extension direction line of the guide rib 164 and the rotation axis 17 of the turbine 15. This ensures that the turbine 15 will not interfere with the guide ribs 164 when rotating, and also allows the blades 18 of the turbine 15 to be directly impacted by the incoming water flow to drive the rotation, which greatly improves the smoothness of the turbine 15 rotation.

In this embodiment, the side wall at the corner of the square mixing chamber 16 with the protruding end of the guide rib 164 facing one side is a water guide portion 165 extending in an arc direction. The arc-shaped water guide portion 165 is coaxial with the rotation axis of the turbine 15 The shaft setting is used to guide the water flow to flow along the arc side wall to prevent the water flow from forming vortices at the corners of the square mixing chamber 16, thereby avoiding the occurrence of poor water inflow and water retention; and the radial size of the turbine 15 is smaller than The radial size of the arc-shaped water guide portion 165 is to prevent the turbine 15 from colliding with the water guide portion 165 .

As shown in Figure 6, in this embodiment, the turbine 15 includes,

The shaft hole part 153 is annular, with a central through hole in the middle, and the central through hole is coaxially plugged into the rotating shaft 17 provided on the water supply waterway 1; preferably, the rotating shaft 17 extends vertically up and down. cylindrical;

A plurality of blades 18 are arranged at equal intervals around each other and are connected to the outer peripheral wall of the annular shaft hole part 153; the blades 18 are columnar and radially protrude and extend along the annular shaft hole part 153. The middle part of the blade 18 is provided with a protrusion 182 with an enlarged radial size; preferably, the circumferential sides of the columnar blade 18 are vertically extending side walls to increase the stirring force of the blade 18 on the water flow.

By arranging the radial protrusion 182 in the middle of the blade 18 of the turbine 15 , when the inlet water flow impacts the blade 18 , it will be diverted by the protrusion 182 of the blade 18 to flow to both sides, thereby reducing the flow of water along the extension direction of the blade 18 . The flow volume reduces the amount of water flow that the blades 18 need to move when the turbine 15 rotates, thereby reducing the rotation resistance of the turbine 15 and increasing the rotation speed of the turbine 15 when it is impacted by the incoming water flow.

As shown in FIGS. 4 to 6 , in this embodiment, the blade 18 has a connecting portion 181 , a protruding portion 182 , and an extending portion 183 along the extending direction. The three parts are coaxially arranged and connected in sequence to form a joint along the turbine 15 . The cylindrical blade 18 extends radially from the rotating shaft 17; the radial width of the protruding portion 182 is greater than the radial width of the connecting portion 181 and the extending portion 183.

In this embodiment, both ends of the protruding portion 182 are connected to the connecting portion 181 and the extension portion 183 respectively. The protruding portion 182 gradually narrows in radial size from the middle to both ends, forming a quasi-elliptical shape that is narrow at both ends and wide in the middle. structure, so that the circumferential side walls of the blade 18 are arc surfaces as much as possible, thereby reducing the resistance of the blade when the turbine 15 rotates.

Preferably, in this embodiment, the top and bottom surfaces of the protruding portion 182 are respectively provided with at least one upwardly or downwardly protruding protrusion 184 extending along the circumferential direction of the turbine to change the outer peripheral contours of the upper and lower sides of the blade. , further improving the stirring effect of the blades on the water flow.

Further preferably, in this embodiment, the radially widest part of the protruding part 182 is disposed close to the extending part 183, so that the radial narrowing rate of the connecting part of the protruding part 182 and the extending part 183 is greater than that between the protruding part 182 and the extending part 183. The radial narrowing rate of the connecting portion of the connecting portion 181 guides most of the water impacting the blades 18 to flow toward the periphery of the turbine 15, thereby improving the mixing degree between the incoming water and the additive.

In this embodiment, the bottom wall of the mixing chamber 16 is provided with a rotating shaft 17 that protrudes vertically upward. The upper end of the rotating shaft 17 is in contact with or spaced apart from the top wall of the mixing chamber 16; the annular shaft hole of the turbine 15 The center of the portion 153 is provided with a central through hole that penetrates up and down. The rotating shaft 17 is inserted coaxially into the central through hole. The thickness of the annular shaft hole portion 153 is greater than the distance between the upper end of the rotating shaft 17 and the top wall of the mixing chamber 16 and smaller than the thickness of the rotating shaft 17 . axial height.

Since the mixing chamber 16 is integrated into the upper cover 3 of the water box 2 of the delivery device 100, the upper cover 3 is composed of a first part 31 and a second part 32 that snap up and down; A gap is reserved between the top walls of the cavity 16 to prevent the two

parts

31 and 32 of the upper cover 3 from snapping together when installed. side, the upper end of the rotating shaft 17 uses the gap to prevent it from colliding with the first part 31 of the upper part of the upper cover 3 of the water box 2 to prevent the rotating shaft 17 from causing damage to the first part 31 of the upper cover 3; therefore, in this application, a gap is reserved to ensure When the two parts of the upper cover 3 are assembled, especially when the two parts are welded and connected, there will be no partial failure to connect due to interference of the rotating shaft 17, thereby effectively ensuring the airtightness of the integrated water supply waterway 1 inside the upper cover 3.

Preferably, as shown in Figures 8 and 11, in this embodiment, the hole wall of the central through hole of the annular shaft hole portion 153 is provided with at least one ring of radially protruding annular limiting ribs 154. The annular limiting ribs are The inner circumferential radial size of 154 and the radial size of the outer wall of the rotating shaft 17 are set to be equal in size, so that the annular limiting ribs 154 can be used to accurately position the turbine 15 during assembly, effectively avoiding the occurrence of problems such as eccentric rotation of the turbine 15.

As shown in Figures 4 and 5, in this embodiment, the two mixing chambers 16 connected on the water supply waterway 1 are the first mixing chamber 161 and the second mixing chamber 162 respectively. The first mixing chamber 161 is provided with a first turbine. 151. A second turbine 152 is provided in the second mixing chamber 162; the outlet 1611 of the first mixing chamber 161 directly constitutes the inlet 1621 of the second mixing chamber 162; the inlet and

outlet

1611, 1612 of the first mixing chamber 161, and the second The axes of the inlet and outlet 1621 and 1622 of the mixing chamber are respectively arranged perpendicularly.

In this embodiment, the inlet 1611 and the outlet 1612 of the first mixing chamber 161 are respectively provided at the same ends of the left and right side walls of the square chamber, and the first turbine 151 is provided at the other end of the first mixing chamber 161; the second mixing chamber The inlet 1621 and outlet 1622 of 162 are respectively located at different ends of the left and right side walls of the square chamber, and the second turbine 152 is provided at one end of the second mixing chamber 162 close to the inlet 1621.

Preferably, as shown in Figures 4 to 6, in this embodiment, the water supply waterway 1 is also provided with a third mixing chamber 162, and the third mixing chamber 163 is located downstream of the second mixing chamber 162. The third mixing chamber 163 A plurality of spoiler convex ribs 701 are arranged inside, and each spoiler convex rib 701 interferes with the flow of the incoming water and additive mixture flowing into the chamber 1, so that the inlet water flow and the additive are affected by the flow in the third mixing chamber 163. The turbulent ribs act to form a vortex, and the vortex further mixes, further improving the degree of mixing between the additive and the incoming water flow. Of course, the third mixing chamber 163 may also be provided with other spoiler structures 700 disclosed in any existing technology that can realize the formation of vortex water flow.

In this embodiment, the third mixing chamber 163 is also square, and an inlet 1631 and an outlet 1632 are respectively provided at two opposite corners of the square third mixing chamber 163; a plurality of spoiler ribs 701 are arranged in the third mixing chamber 163. , the spoiler convex rib 701 is strip-shaped, and the extending direction of the strip-shaped spoiler convex rib 701 is perpendicular to the connecting line between the inlet 1631 and the outlet 1632 of the third mixing chamber 163; further preferably, the square third mixing chamber 163 Each of the four quadrants is provided with a spoiler convex rib 701, and each spoiler rib extends in parallel, and the center line of the strip spoiler rib coincides with the center line of the corresponding quadrant.

Embodiment 2

Based on the above-mentioned Embodiment 1, this embodiment also has the following technical features:

As shown in Figures 1 to 13, this embodiment introduces an additive delivery device, which includes: a water supply waterway 1 for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; and an air extraction structure for supplying water to the water supply. The water supply flowing through the water channel 1 is mixed with air, and the air-mixed water supply water flow and the added additive are stimulated to generate foam; the liquid outlet structure 500, the outlet 11 of the water supply water channel 1 is connected to the liquid outlet structure 500, and is used to release the mixture with foam. .

By arranging an air extraction structure on the water supply waterway, air is introduced into the water supply waterway when the water supply water flows through it, so that air particles are mixed into the water flow flowing through the water supply waterway, so that the incoming water containing air particles can be used to stimulate the injection of additives. The additive mixture containing foaming particles is used to foam and obtain better washing effect, and enhance the washing effect of the added additive mixture on clothes.

As shown in Figures 12 and 13, in this embodiment, the air extraction structure includes a Venturi tube 19, which is connected in series to the water supply waterway 1; the Venturi tube 19 is a pipeline with a channel inside. The Venturi tube 19 The middle part of 19 is the negative pressure part, with a smaller pipe diameter; the upstream part of the negative pressure part is the narrowing part, and its internal pipeline is a tapered pipe section that gradually narrows the aperture from the inlet to the negative pressure part; the downstream part of the negative pressure part is the expanded part , the internal pipeline is a tapered pipe section that gradually expands the aperture from the negative pressure part to the outlet; the inlet and outlet of the venturi tube 19 are approximately the same size and are much larger than the diameter of the narrowing part; one side of the pipeline of the negative pressure part A gap is provided to connect the internal pipeline with the external atmosphere. The gap constitutes a negative pressure suction port 191 to utilize the venturi tube 19 itself when the water flowing from the inlet to the outlet flows through the venturi tube 19 The pipeline structure forms a negative pressure at the negative pressure part. The formed negative pressure pumps the air in the external atmosphere into the pipeline interior through the self-pressure suction port 191 and mixes it with the flowing air flow to form a water flow containing air particles.

In this embodiment, the additive dispensing device 100 includes a water box 2. The water supply channel 1 is integrated on the upper cover 3 of the water box 2. The water box 2 is provided with a cavity for installing a liquid storage box 5 that can be pulled outward. , the negative pressure suction port 191 of the venturi tube 19 is opened downward and communicates with the internal cavity of the water box 2 through the corresponding hollow opening 193 provided on the lower side of the upper cover 3 of the water box 2 .

In this embodiment, the venturi tube 19 is provided in the water supply waterway 1 upstream of the place connected to the delivery unit, so that air particles can be introduced into the inlet water flow before mixing the additives, thereby extending the time between the additive and the inlet water containing air particles. The mixing time improves the foaming effect during the addition of additives. Preferably, the liquid storage box 5 can be provided with multiple liquid storage chambers for storing different additives respectively; the different additives can be of different types, for example, detergent, softener, rinse agent, bleach, Fragrance agents, etc.; can also be of different concentrations, such as super concentrated detergent, ordinary detergent, concentrated detergent, etc. The water supply waterway 1 can be connected to one of the different liquid storage chambers 4 through a single delivery unit; or the water supply waterway 1 can also be connected to multiple delivery units, and each delivery unit is connected to multiple liquid storage chambers 4 in a one-to-one correspondence. ; Preferably, a plurality of liquid suction ports 13 are provided on the water supply waterway 1, and each liquid suction port 13 is connected to different liquid storage chambers 4 in one-to-one correspondence, so as to realize the delivery of different liquid storage chambers 4 into the water supply waterway. The purpose of using internal additives.

As shown in Figures 12 and 13, in this embodiment, the Venturi tube 19 is located at the lowest point of the water supply waterway 1; preferably, the water supply waterway 1 is provided with a downwardly recessed installation groove 192, and the Venturi tube 19 is installed on In the installation groove 192, the bottom of the installation groove 192 is provided with an opening 193 that penetrates up and down. The opening 193 is correspondingly opened and connected with the negative pressure suction port 191 provided on the venturi tube 19, so as to realize the emptying inside the water box. The air in the cavity is drawn into the venturi tube and mixed with the flowing water to form an inlet water flow containing air particles.

In this embodiment, the mounting groove 192 is a semi-cylindrical groove extending horizontally and opening upward, and the opening 193 is an arc-shaped notch opened on the side wall of the semi-cylindrical groove and extending in the circumferential direction.

In this embodiment, the part of the installation groove 192 exceeds the venturi tube 19 and is located in the downstream water supply waterway 1. The excess part of the installation groove 192 extends axially along the water outlet of the venturi tube 19, so that the water flowing out from the venturi tube 19 The water flow passes through the downward-settling installation tank and then flows into the downstream water supply waterway, thereby extending the residence time of the water flow there, increasing the concentration of air particles contained in the flowing water, and achieving the purpose of improving the foaming effect of the additive.

This embodiment also includes a mixing structure disposed in the water supply waterway 1 to mix the water supply flow mixed with air and the additives put into the water supply waterway 1 to stimulate the generation of foam; preferably, the mixing structure is disposed between the delivery unit and In the water supply water channel 1 downstream of the liquid suction port 13 connected with the water supply water channel 1; preferably, the mixing structure is a turbine 15 installed in the mixing chamber 16 provided on the water supply water channel 1 described in the first embodiment. The flow rib 701 can also be any other structure in the prior art.

In this embodiment, the water supply waterway 1 upstream of the Venturi tube 19 is also provided with a pressure relief structure, which connects the inside of the water supply waterway 1 with the external atmosphere for pressure relief and ventilation; preferably, the pressure relief structure includes a pressure relief structure on the water supply waterway 1 A ventilation port 141 is provided to connect the inside of the water supply waterway 1 with the outside atmosphere. A one-way pressure relief valve 14 is installed at the ventilation port 141 so that the ventilation port 141 can only be opened when the internal pressure of the water supply waterway 1 is too high. . The pressure relief structure is the pressure relief structure provided on the water supply waterway 1 described in the third embodiment below, and can also be any other structure in the prior art.

Embodiment 3

Based on the above-mentioned

Embodiments

1 and 2, this embodiment also has the following technical features:

As shown in Figures 1 to 13, this embodiment introduces an additive delivery device, which includes a water supply waterway 1 for water supply to flow through; a delivery unit for delivering additives to the water supply waterway 1; and a pressure relief structure. On the water supply waterway 1, the inside of the water supply waterway 1 is connected with the outside atmosphere to allow pressure relief and ventilation.

By arranging a pressure relief structure in the waterway of the delivery device, excessive pressure in the waterway can be discharged from the pressure relief structure, thereby reducing the pressure-bearing pressure of the integrated waterway on the delivery device and achieving overpressure on the waterway of the delivery device. Protect.

In this embodiment, the pressure relief structure includes a ventilation port 141 provided on the water supply waterway 1 to connect the inside of the water supply waterway 1 with the outside atmosphere. A one-way pressure relief valve 14 is installed at the ventilation port 141, so that the ventilation port 141 can 141 can only be opened when the internal pressure of the water supply waterway 1 is too high.

In this embodiment, the additive dispensing device 100 includes a water box 2. The water supply channel 1 is integrated on the upper cover 3 of the water box 2. The water box 2 is provided with a cavity for installing a liquid storage box 5 that can be pulled outward. , the ventilation port 141 is provided on the lower side of the upper cover 3, and the ventilation port 141 penetrates the part of the upper cover 3 below the water supply water channel 1, connecting the water supply water channel 1 and the internal cavity of the water box 2.

As shown in Figures 7 and 10, in this embodiment, the pressure relief valve 14 includes a mounting sleeve 142, which protrudes downward and is provided on the lower side of the upper cover 3 of the additive dispensing device 100, and is coaxial with the ventilation port 141. conduction; the valve core 144 corresponds to the closed ventilation port 141 and can move downward to open the ventilation port 141; the spring 146 has one end against the lower end of the valve core 144 and the other end connected to the installation sleeve 142 to provide upward pressure to the valve core 144 The elasticity of moving tendency and closing the ventilation port 141.

In this embodiment, the upper end of the installation sleeve 142 is provided with an annular sealing bracket 145, and at least one ring of sealing ring 1451 is installed between the outer periphery of the sealing bracket 145 and the inner wall of the installation sleeve 142; the lower end of the installation sleeve 142 is provided with an annular sealing bracket 145. Base 143, the upper side of the base 143 is connected to the lower end of the spring 146.

In this embodiment, the base 143 is disc-shaped, and the lower end of the mounting sleeve 142 is provided with a circle of radially protruding mounting ribs. The outer peripheral portion of the disc-shaped base 143 is located above the mounting ribs, and the outer peripheral wall is against the inner wall of the mounting sleeve 142; The center of the disc-shaped base 143 is provided with an installation through hole 1433 that runs up and down; the upper side of the disc-shaped base 143 is provided with two inner and outer circles of coaxial and unequal diameter inner circumferential annular ribs 1431 and outer circumferential annular ribs 1432, and the lower end of the spring 146 is sleeved Between the inner and outer peripheral annular ribs 1431 and 1432.

In this embodiment, the valve core 144 includes a blocking portion 1441 corresponding to blocking the inner peripheral through hole of the annular mounting bracket 145. The blocking portion 1441 is provided with at least one sealing ring 1442 on its outer periphery. The sealing ring 1442 is located in the blocking portion. between the outer peripheral side wall of 1441 and the inner peripheral wall of the mounting bracket 145; in this embodiment, the outer periphery of the mounting bracket 145 is provided with a downwardly extending connecting portion 1452, and the connecting portion 1452 is connected to the base 143; in this embodiment, the mounting bracket The lower part of the inner peripheral through hole of 145 has a frustum-shaped wall that gradually narrows in radial size from bottom to top.

In this embodiment, the valve core 144 also includes a limiting rod 1444, which is coaxially arranged with the installation sleeve 142. The upper end is connected to the blocking part 1441, and the lower end is correspondingly inserted into the installation through hole 1433 in the center of the base 143. The spring 146 is coaxially sleeved on the outer periphery of the limiting rod 1444, with its upper end abutting the lower side of the blocking portion 1441, and its lower end abutting the upper side of the base 143. Preferably, the outer circumference of the blocking part 1441 is provided with a ring of annular ribs 1443 extending downwardly, and a gap is left between the inner circumference of the annular rib 1443 and the outer peripheral wall of the limiting rod 1444. The above gap forms a gap for the upper end of the spring 146 to be inserted. plug slot.

In this embodiment, the pressure relief structure is located in the water supply water channel 1 upstream of the liquid suction port 13 connected between the delivery unit and the water supply water channel 1 .

As shown in Figures 4 and 5, the water supply waterway is integrated and disposed in the upper cover 3 of the water box 2 of the delivery device 100. The two ends of the water supply waterway 1 are respectively the inlet 12 and the external water source connected through the control valve structure. The outlet 11 through which the mixed liquid containing additives and water flows out. In this embodiment, the water supply waterway 1 is divided into: water inlet part 101, ventilation part 102, liquid suction part 103, mixing part 104, and liquid outlet part 105 in order from the inlet 12 to the outlet 11;

The water inlet part 101 is connected to one or more inlets 12, and is connected to the inlet end of the ventilation part 102 through only one outlet, so that one or more inlet water flows flowing into the water supply waterway can flow downstream. in the water supply waterway; preferably, the water inlet 101 is a "herringbone"-shaped three-way branch structure, in which the ends of two branches are sealed and connected to one inlet 12 respectively, and the end of the other branch Connect the outlet with the water inlet end of the ventilation part;

The ventilation part 102 is a strip-shaped extending pipeline. One end of the strip-shaped ventilation part 102 is a water inlet connected to the water inlet, and the other end is a water outlet connected to the water inlet of the downstream liquid suction part 103. , the pressure relief structure is provided in the ventilation part 102; preferably, the ventilation part 102 is also provided with the air extraction structure described in the above-mentioned Embodiment 2, and the air extraction structure is located downstream of the pressure relief structure;

The liquid suction part 103 is a strip-shaped extending pipe or a coiled and folded pipe. The water inlet end of the liquid suction part 103 is connected to the water outlet end of the ventilation part 102, and the water outlet end is connected to the water inlet end of the downstream mixing part 104. There are multiple liquid suction ports 13 arranged on the bottom wall of the liquid suction part 103 for adding additives into the water supply waterway; preferably, the liquid suction part 103 and the ventilation part 102 are arranged parallel to each other, and the liquid suction part 103 A set of opposite ends of the ventilation part 102 are connected through bent tubes, so that the liquid suction part 103 and the ventilation part 102 jointly form a return flow channel, thereby increasing the amount of additive extracted from the delivery device 100;

The mixing part 104 is a multi-stage mixing chamber structure connected in series. It includes a plurality of mixing chambers 16 that are connected in series in sequence. Each level of mixing chamber is provided with a mixing structure. The mixing structure can be implemented as described above. The turbine 15, spoiler ribs 701, etc. mentioned in the example; preferably, the inlet of the first upstream mixing chamber 16 is connected with the water outlet end of the liquid suction part 103, and the outlet of the first downstream mixing chamber 16 is connected. Communicated with the water inlet end of the downstream liquid outlet 105;

The liquid outlet 105 is a bent and extended pipe, one end of which is connected to the water outlet end of the mixing part, and the other end forms the outlet 11 of the water supply channel 1. The liquid outlet 105 is configured as a bent and extended pipe to extend it as much as possible. The extended length of the liquid outlet 105 achieves significant technological progress in extending the residence time of the mixed liquid in the waterway, thereby improving the mixing uniformity, and increasing the amount of additive liquid that can be placed in the water supply waterway.

Embodiment 4

Based on the above-mentioned Embodiments 1 to 3, this embodiment also has the following technical features:

This embodiment introduces a method for adding additives to a washing machine, which includes: after the incoming water flow and the added additives are mixed in the water supply waterway, the mixed liquid is directly sprayed into the washing tub;

During the additive dosing process, the washing drum rotates intermittently;

During the shutdown period of each washing drum, the additives are sprayed directly into the washing drum in batches in the form of mixed liquid.

By adding the additive mixture in batches during the stoppage of the rotating drum, the mixing uniformity of the additive mixture and the clothes in the rotating drum is improved, thereby achieving technological progress that greatly improves the washing effect of the washing machine; at the same time, by adding the additive mixture in The injection is carried out during the stoppage of the inner cylinder, which increases the distribution range of the additive mixture in the rotating cylinder, thereby increasing the amount of clothing covered by the additive mixture.

In this embodiment, the additive delivery method includes the following steps:

Get the additive dosage V;

Divide the additive dosage V into n parts;

The washing drum works in the form of intermittent rotation. During each stop period of the washing drum, a mixed solution containing an amount Vn of additives is directly sprayed into the washing drum.

Preferably, in this embodiment, the additive dosage V can be equally divided into n parts, and each portion Vn is V/n; the additive dosage V can also be divided unevenly.

In this embodiment, the additive dosage V is determined by one or more of the weight, material, dry humidity of the clothes to be washed by the washing machine, and the clothes processing program to be executed by the washing machine; or, it is directly selected by the user. It follows that; preferably, the above-mentioned n is the corresponding preset value called based on the additive dosage V.

In this embodiment, the direct spraying and dropping of the mixed liquid containing an amount of Vn additives into the washing tub includes the following steps:

Pump the Vn additive into the waterway;

Water is poured into the water channel for m seconds;

In this embodiment, the incoming water and the additives pumped into the delivery waterway are in the mixing chamber of the delivery waterway. The liquid drives the turbine set in the mixing chamber to rotate around its axis, stirring the additives in the turbine chamber and mixing with the incoming water.

In this embodiment, air is fed into the incoming water flow to form an incoming water flow containing air particles; the incoming water flow containing air particles will flush the additives pumped into the waterway into the mixing chamber, and then use the mixing in the mixing chamber to The structure mixes the incoming water flow containing air particles with additives to stimulate the mixed liquid to form foam, forming a mixed liquid containing foam particles.

In this embodiment, during the process of adding additives, the intermittent rotation of the washing tub includes the following: alternately executing a rotation period and a stop period; in the rotation period, the washing tube rotates at the set speed v for t1 seconds; in the stop period , the washing drum stops rotating for t2 seconds.

In this embodiment, the duration t2 of each stalling period is a preset value based on the additive dosage Vn called this time; the rotation speeds v and t1 of each rotating period are based on the additive dosage Vn called during the next stalling period. default value.

In this embodiment, as the additive dosing process continues to run, the running time t1 of each rotation period gradually becomes longer and the set rotation speed v gradually becomes smaller; the duration t2 of each rotation period gradually becomes shorter; preferably, as the As the additive dosing process continues to run, the additive dosing amount Vn in each rotation period gradually becomes smaller.

As shown in Figure 14, in this embodiment, the additive adding method for the washing machine specifically includes the following steps:

S1. Get the additive dosage V;

S2. Based on obtaining the additive dosage V, obtain the dosage process;

The parameters of the resulting delivery process include at least,

The amount of additive V is divided into n parts, the corresponding dosage of each part is V1...Vn, the water inlet time of each part is m1...mn seconds, the rotation time of the rotating drum corresponding to each part is t11...t1n, the rotation speed v1...vn and Stalling time t21…t2n;

S3. Execute the delivery unit once (the following parameters take the nth time as an example);

S31. The rotating drum stops rotating t2n, and Vn amount of additive is pumped into the water supply waterway;

S32. The rotating drum rotates at the speed vn for t1n seconds, and starts to inject water into the water supply channel synchronously at the node where the rotating drum starts to rotate. The water inflow lasts for m seconds;

S33. Determine whether the number of execution times of the delivery unit reaches n (the value n determined in step 2); if so, the delivery ends and step S4 is executed; if not, the next delivery unit is executed and step S3 is executed again;

S4. Additive delivery ends.

Embodiment 5

Based on the above-mentioned Embodiments 1 to 4, this embodiment also has the following technical features:

As shown in Figures 1 and 13, in this embodiment, the top of the water box 2 of the additive dispensing device 100 is the upper cover 3, the water supply waterway 1 is provided inside the upper cover 3, and the outlet 11 of the water supply waterway 1 is exposed to the upper cover 3 On the outer peripheral side, the inlet end of the conduit 600 is connected with the outlet 11 of the water supply waterway 1, and the outlet end of the conduit 600 is connected with the liquid outlet structure 500 provided outside the water box 2; preferably, the upper cover 3 includes an upper and lower structure that interlocks with each other. The first part 31 and the second part 32 are spliced relative to each other to form the water supply channel 1 at the joint surface. Further preferably, the first part 31 and the second part 32 of the upper cover 3 are connected through a welding process to form a closed, pressure-bearing water channel structure internally.

Therefore, the water supply water channel 1 of the additive dispensing device 100 is integrated on the upper cover 3 , so that the water and additives of the dispensing device 100 are directly injected through the water supply water channel 1 inside the upper cover 3 , thereby realizing that the additives are directly pumped from the outer periphery of the upper cover 3 The outlet 11 on the side flows out and has the effect of being released.

In this embodiment, the delivery unit includes a liquid storage chamber 4 for storing additives. The liquid storage chamber 4 is connected with the water supply waterway 1; the delivery device 100 is also provided with a power unit to pump the additives in the liquid storage chamber 4 into the water supply waterway. Provide motivation.

As shown in Figures 1 to 13, in this embodiment, the power unit is a pump 6 located on the liquid pumping channel connected to the liquid storage chamber 4 and the water supply waterway 1, and provides a pump 6 for the liquid in the liquid pumping channel from the liquid storage chamber 4. The driving force for the 1-direction flow of the water supply waterway. In this embodiment, the power unit can also be configured with other existing structures. For example, the power unit is a suction pump, and the suction port of the suction pump is connected with the water supply waterway 1, so that the water supply waterway 1 can Negative pressure is formed, and the additive in the liquid storage chamber 4 is pumped to the water supply waterway 1 through the liquid pumping channel; and/or, the power unit can also be a venturi tube located on the water supply waterway 1, with the Venturi tube There is a negative pressure area with a sudden change in pipe diameter. The negative pressure area can use the flowing water to form negative pressure here. The negative pressure area of the Venturi tube is equipped with a suction port. The suction port passes through the liquid suction flow channel and the liquid storage chamber 4. Connected (not noted in the attached picture).

In this embodiment, the additive dispensing device 100 includes a plurality of liquid storage chambers 4, and each liquid storage chamber 4 can hold different types of additives, such as detergent, softener, fragrance agent, disinfectant, etc.; the dispensing device 100 is provided with a control device, and the control device is used to control each liquid storage chamber 4 to select one or a combination of them and be connected to the water supply waterway 1, so as to put any one or multiple combinations of additives into the water supply waterway 1 correspondingly. .

In this embodiment, the control device can be configured as any existing structure that can realize the above functions; for example: in this embodiment, each liquid storage chamber 4 can be connected through a flow channel and a water supply channel equipped with a control valve respectively. 1 is connected to achieve the effect of separate or combined on-off control of each flow channel by controlling the opening and closing of each control valve, thereby achieving the purpose of independently dosing any type of additives, or adding multiple types of additives at the same time; Each liquid storage chamber 4 can also be connected to different inlets of the same reversing valve in one-to-one correspondence. The outlet of the reversing valve is connected to the water supply waterway 1. A rotatable valve core is provided in the reversing valve for control. Any or a combination of inlets and outlets are connected, and the purpose of releasing any type of additives independently, or adding multiple categories of additives at the same time (not noted in the drawings) can also be achieved.

As shown in Figures 1 to 13, in this embodiment, the water box 2 of the additive delivery device 100 is provided with a liquid storage box 5. The liquid storage box 5 can be pulled outward and installed on the water box of the additive delivery device 100. 2; the liquid storage box 5 is provided with at least one liquid storage chamber 4 for storing additives. Each liquid storage chamber 4 on the liquid storage box 5 is connected to the water supply waterway 1 through a connector 7. The connector 7 is provided with There is a control device for controlling each liquid storage chamber 4 to be selectively connected to the water supply channel 1 in one or a combination of controllable on-off manners.

In this embodiment, the inlet 12 of the water supply water channel 1 is located on the outer wall of the water box 2, and the inlet 12 of the water supply water channel 1 is connected with the water supply source, so that the incoming water flow can flow into the water supply water channel 1.

In this embodiment, the additive dispensing device 100 is installed on the washing machine, and the water supply source of the additive dispensing device is the water inlet pipe of the washing machine. The inlet 12 of the water supply channel 1 is connected with the water inlet pipe of the washing machine, so that the washing water can flow into the water supply channel 1 through the inlet 12 . The water box 2 of the additive dispensing device 100 is provided with a water inlet joint, and both ends of the water inlet joint are respectively connected with the inlet 12 of the water supply waterway 1 and the washing machine water inlet pipe; further preferably, a water inlet joint is installed with a control waterway on and off control valve.

In the present invention, by arranging the above-mentioned additive dispensing device 100 on the washing machine, the additives of the washing machine flow directly to the liquid outlet structure 500 through the water supply waterway 1, and are directly sprayed into the washing tub 300 from the liquid outlet structure 500, thereby realizing that the additives of the washing machine do not pass through the water box. , without passing through the water tank 200 outside the washing drum 300, but directly flowing into the washing drum 300 from the water channel of the delivery device 100 and spraying it to the load to be processed, thus achieving the purpose of directly spraying the additive solution to the load to be processed in the washing drum 300. . At the same time, through the above arrangement, the washing machine equipped with the above-mentioned additive dispensing device 100 can realize that the additive solution formed by mixing the additive with a small amount of incoming water in the water supply waterway 1 is directly sprayed onto the load to be processed in the washing tub 300, thereby making all The utilization rate of the delivered additives has been significantly improved.

In this embodiment, a liquid suction port 13 is provided in the middle of the water supply waterway 1 , and the liquid suction port 13 is connected with the delivery unit, so that the additive is pumped into the water supply waterway 1 from the liquid suction port 13 . Preferably, the liquid suction port 13 is connected with the outlet of the pump 6, the inlet of the pump 6 is connected with the outlet of the liquid suction channel, the inlet of the liquid suction channel is connected with the outlet of the connector 7, and the plurality of connectors 7 are connected. The inlet is connected with each liquid storage chamber 4 in a one-to-one correspondence, so that the additive in the liquid storage chamber 4 is pumped into the water supply waterway 1 through the above-mentioned flow channel and driven by the pump 6 .

In this embodiment, the liquid outlet structure 500 can be provided on the casing and/or door body of the washing machine, and/or the water tank 200, and/or the window mat 400, with the injection outlet of the liquid outlet structure 500 facing the inside of the washing tub 300. When opened, the additive sprayed from the liquid outlet structure 500 is directly sprayed into the inside of the washing tub 300 .

Preferably, in this embodiment, the specific installation method of the liquid outlet structure 500 is as follows:

As shown in Figures 1 to 13, a ring of window gasket 400 is installed at the mouth of the water container 200. The window gasket 400 is cylindrical. One end of the cylindrical window gasket 400 is connected to the mouth of the water container 200, and the other end is connected to the washing machine casing. , to form a channel; the mouth of the washing tub 300 is relatively connected to one end of the above-mentioned channel, and the washing machine casing is provided with a clothes put-in port that is connected to the other end of the above-mentioned channel. The washing machine casing is equipped with a device that can open and close the clothes put-in port accordingly. Door body, after the door body is closed, a closed space is formed inside the water tank 200; there is a gap space between the door body and the window pad 400, and the gap space is directly connected to the inside of the washing drum 300 through the opening of the washing drum 300; the liquid outlet structure 500 is installed on the top of the window gasket 400, and the liquid outlet structure 500 passes through the window gasket 400. The liquid outlet structure 500 has a spray outlet on the inner peripheral side of the window gasket 400, and an inlet on the outer peripheral side of the window gasket 400. The liquid outlet structure 500 There is a flow channel inside 500, and both ends of the flow channel are connected to the inlet and the spray outlet respectively. The spray outlet is set toward the mouth of the washing tub 300, so that the additive solution sprayed from the liquid outlet structure 500 can be directly sprayed into the washing tub 300. , in order to realize the significant technological progress of directly injecting additives onto the load to be processed in the washing drum 300 and improving the additive delivery efficiency.

In this embodiment, the liquid outlet structure 500 can be any existing spray structure, and the spray outlet can be configured as a plurality of spray holes arranged at intervals, or as a single opening.

In this embodiment, the washing machine is provided with an independently installed conduit 600 located outside the water box of the additive dispensing device 100 and the water container 200 . The two ends of the conduit 600 are connected to the inlet of the liquid outlet structure 500 and the outlet of the water supply waterway 1 respectively. 11 are relatively plugged in and connected, so that the additive solution supplied by the water supply channel 1 can be directly directed to the liquid outlet structure 500 through the conduit 600 to achieve the effect of direct injection into the washing tub 300 of the washing machine. Preferably, the above-mentioned conduit 600 is made of rubber or other materials, and can bend and deform itself.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above in preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can make some changes or modify the above-mentioned technical contents into equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims

An additive delivery device includes a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; it is characterized in that a pressure relief structure is provided on the water supply waterway to connect the inside of the water supply waterway with the external atmosphere. The pressure relief and ventilation are connected; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, and is used to put the mixed additives and water.
An additive dispensing device according to claim 1, characterized in that the additive dispensing device includes a water box, the water supply waterway is integrated on the upper cover of the water box, and a drawer portion that can be pulled outward is provided in the water box. Cavity, the ventilation port is located on the lower side of the upper cover, and the ventilation port penetrates the upper cover part below the bottom wall of the water supply waterway, connecting the water supply waterway and the internal cavity of the water box; preferably, there is a water supply water supply on the front side of the water box. The liquid storage box is provided with a pull-out port, which connects the internal cavity of the water box to the outside atmosphere.
An additive delivery device according to claim 1 or 2, characterized in that the pressure relief structure includes a ventilation port provided on the water supply waterway to connect the inside of the water supply waterway with the outside atmosphere, and a single unit is installed at the ventilation port. To the pressure relief valve, the ventilation port can only be opened when the internal pressure in the water supply line is too high.
An additive dispensing device according to claim 3, characterized in that the pressure relief valve includes an installation sleeve, which protrudes downward and is provided on the lower side of the upper cover of the additive dispensing device and is coaxially connected to the ventilation port. ; The valve core corresponds to the closed ventilation port and can move downward to open the ventilation port; the spring, with one end against the lower end of the valve core and the other end connected to the installation sleeve, provides an upward movement tendency for the valve core and seals the ventilation port. Elasticity.
An additive delivery device according to claim 4, characterized in that the upper end of the installation sleeve is provided with an annular sealing bracket, and at least one ring of sealing ring is installed between the outer periphery of the sealing bracket and the inner wall of the ventilation port; the installation sleeve The lower end of the barrel is provided with a base, and the upper side of the base is connected to the lower end of the spring.
An additive dispensing device according to claim 5, characterized in that the base is in the shape of a disk, the lower end of the installation sleeve is provided with a circle of radially protruding mounting ribs, and the outer peripheral part of the disk-shaped base is located above and around the mounting ribs. The wall and the inner wall of the installation sleeve are offset; the center of the disc-shaped base is provided with an installation through hole that runs up and down; the upper side of the disc-shaped base is provided with two inner and outer rings of coaxial and unequal diameter annular ribs, and the lower end of the spring is sleeved on the inner and outer annular ribs. between.
An additive delivery device according to claim 6, characterized in that the valve core includes a blocking portion corresponding to blocking the inner peripheral through hole of the annular mounting bracket, and the outer periphery of the blocking portion is provided with at least one ring of sealing rings. The sealing ring is located between the blocking part and the mounting bracket; preferably, the outer periphery of the mounting bracket is provided with a downwardly extending connecting portion, and the connecting portion is connected to the base; preferably, the lower part of the inner peripheral wall of the mounting bracket gradually shrinks from bottom to upward. Conical frustum with narrow radial dimensions.
An additive delivery device according to claim 7, characterized in that the valve core also includes a limiting rod, which is coaxially arranged with the installation sleeve, the upper end is connected to the blocking part, and the lower end is correspondingly inserted into the installation through hole in the center of the base. ; The spring is coaxially sleeved on the outer periphery of the limiting rod, with its upper end abutting the lower side of the blocking part, and its lower end abutting the upper side of the base.
An additive dispensing device according to any one of claims 1 to 8, characterized in that the pressure relief structure is located in the water supply waterway upstream of the liquid suction port connected between the dispensing unit and the water supply waterway.
A washing machine, which includes a washing tub for holding a load to be processed, and is characterized in that it also includes an additive delivery device according to any one of claims 1 to 9, and the inlet of the water supply channel of the additive delivery device is connected to the entrance of the washing machine. The water pipes are connected, and the liquid outlet structure of the additive dispensing device is located on the casing, and/or door body, and/or water tank, and/or window mat of the washing machine, and the liquid outlet structure is sprayed toward the washing tub of the washing machine.
An additive delivery device, which includes: a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; characterized in that: the water supply waterway is provided with multi-stage mixing chambers connected in series to at least partially mix Each chamber is equipped with a turbine, and the liquid mixture composed of additives flowing through the mixing chamber and the incoming water drives the turbine to rotate, mixing the added additives with the incoming water; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, for Add the mixed additives and water.
An additive dispensing device according to claim 11, characterized in that the opposite sides of the mixing chamber are respectively provided with an inlet and an outlet, and the turbine is arranged close to the inlet; the axis of the inlet is in any tangential direction of the turbine coincident or parallel.
An additive delivery device according to claim 12, characterized in that the mixing chamber is in a square shape, and the inlet is located at any corner of the square mixing chamber; The guide ribs extend along any tangential direction of the turbine and maintain a distance from the side wall of the square mixing chamber, so that the liquid flowing in from the inlet can flow into the mixing chamber along the tangential direction of the turbine through the above distance.
An additive dispensing device according to claim 13, characterized in that the side wall at the corner of the square mixing chamber with the protruding end of the guide rib facing one side is a water guide portion extending in an arc direction, in the shape of an arc. The water guide part is coaxially arranged with the turbine shaft.
An additive dispensing device according to claim 13, characterized in that the extension length of the turbine blade is less than the distance between the end of the guide rib and the turbine rotating shaft, and is greater than the vertical distance between the extension direction line of the guide rib and the turbine rotating shaft. distance.
An additive dispensing device according to any one of claims 11 to 15, characterized in that the turbine includes an axial hole part, and the central through hole of the annular axial hole part is coaxially plugged into the rotating shaft provided on the water supply waterway. A plurality of blades, each blade is arranged at equal intervals and connected to the outer peripheral wall of the annular shaft hole; the blade is a columnar shape that protrudes and extends along the radial direction of the annular shaft hole, and the middle part of the columnar blade is provided with There are projections of increased radial size.
An additive dispensing device according to claim 16, characterized in that the blades are sequentially composed of a connecting part, a protruding part, and an extending part along the extending direction, and the three parts are coaxially arranged and connected in sequence to form a structure along the radial direction of the turbine shaft. Extended columnar blade; the radial width of the protruding portion is greater than the radial width of the connecting portion and the extending portion.
An additive dispensing device according to claim 17, characterized in that the two ends of the protruding part are connected to the connecting part and the extending part respectively, and the protruding part gradually narrows the radial size from the middle to both ends, forming two ends. A narrow, elliptical-like structure with a wide middle part; preferably, the top surface of the protruding part is provided with at least one upward protruding part extending along the circumferential direction of the turbine; further preferably, the widest radial part of the protruding part is close to The extending portion is provided on one side, and the radial narrowing rate of the portion connecting the protruding portion and the extending portion is greater than the radial narrowing rate of the portion connecting the protruding portion and the connecting portion.
An additive delivery device according to claim 16, characterized in that the bottom wall of the mixing chamber is provided with an upwardly protruding rotating shaft, and the upper end of the rotating shaft is spaced apart from the top wall of the mixing chamber; the annular shaft of the turbine The center of the hole is provided with a central through hole that penetrates up and down. The rotating shaft is inserted coaxially into the central through hole. The thickness of the annular shaft hole is greater than the distance between the upper end of the rotating shaft and the top wall of the mixing chamber and less than the axial height of the rotating shaft; preferably , the hole wall of the central through hole of the annular shaft hole is provided with at least one ring of radially protruding annular limiting ribs, and the inner circumferential radial size of the annular limiting rib is equal to the radial size of the outer wall of the rotating shaft; Preferably, the two mixing chambers connected on the water supply waterway are a first mixing chamber and a second mixing chamber respectively. The first mixing chamber is provided with a first turbine, and the second mixing chamber is provided with a second turbine; the first mixing chamber is provided with a first turbine. The outlet directly constitutes the inlet of the second mixing chamber; the inlet and outlet of the first mixing chamber are respectively arranged perpendicular to the axes of the inlet and outlet of the second mixing chamber; preferably, the inlet and outlet of the first mixing chamber are respectively located at The first turbine is located at the other end of the first mixing chamber at the same end of the left and right side walls of the square chamber; the inlet and outlet of the second mixing chamber are located at different ends of the left and right side walls of the square chamber, and the second turbine It is arranged at one end of the second mixing chamber close to the inlet.
A washing machine, which includes a washing tub for holding a load to be processed, and is characterized in that: it also includes an additive delivery device according to any one of the above claims 11 to 19, and the inlet of the water supply waterway of the additive delivery device is connected to the entrance of the washing machine. The water pipes are connected, and the liquid outlet structure of the additive dispensing device is located on the casing, and/or door body, and/or water tank, and/or window mat of the washing machine, and the liquid outlet structure is sprayed toward the washing tub of the washing machine.
A method for adding additives to a washing machine, which includes mixing the incoming water flow and the added additives in the water supply waterway, and spraying the mixed liquid directly into the washing tub; it is characterized in that: during the additive adding process, the washing tub rotates intermittently; During the shutdown period of each washing drum, the additives are sprayed directly into the washing drum in batches in the form of mixed liquid.
A method for adding additives to a washing machine according to claim 21, characterized in that: the additive adding amount V is obtained; the additive adding amount V is divided into n parts; the washing drum operates in the form of intermittent rotation, and each time the washing drum During the stall period, the mixed liquid containing an amount Vn of additives is directly sprayed into the washing tub; preferably, the amount V of the additive is divided into n parts, and each part amount Vn is V/n.
A method of adding additives to a washing machine according to claim 22, characterized in that the amount of additives V is determined by one of the weight, material, dry humidity of the clothes to be washed by the washing machine, and the clothes processing program to be executed by the washing machine. It can be obtained by corresponding to multiple values; or it can be obtained by direct selection by the user; preferably, the above-mentioned n is the corresponding preset value called based on the additive dosage V.
A method for adding additives to a washing machine according to claim 22, characterized in that the direct spraying and dropping of the mixed liquid containing an amount of Vn additives into the washing tub specifically includes the following steps: pumping the Vn additives into the washing tub and adding them In the waterway; water is fed into the delivery waterway for m seconds; the incoming water and the additives pumped into the delivery waterway are mixed using the mixing structure provided in the delivery waterway to form a mixed liquid; the mixed liquid comes from the water outlet structure provided at the outlet end of the water supply waterway Spray into the rotating drum; preferably, the above-mentioned m is the corresponding preset value called based on the amount of additive Vn that needs to be delivered this time.
A method for adding additives to a washing machine according to claim 24, characterized in that the incoming water and the additives pumped into the delivery waterway are in the mixing chamber of the delivery waterway, and flow through the turbine axis provided in the liquid-driven mixing chamber. Rotate and stir the additives in the turbine chamber to mix with the incoming water.
A method for adding additives to a washing machine according to claim 25, characterized in that air is fed into the inlet water flow to form an inlet water flow containing air particles; the inlet water flow containing air particles will be pumped into the water channel. The additives are flushed into the mixing chamber, and then the mixing structure in the mixing chamber is used to mix the incoming water flow containing air particles with the additives, stimulating the mixed liquid to form foam, forming a mixed liquid containing foam particles.
The method for adding additives to a washing machine according to any one of claims 21 to 26, wherein during the additive adding process, the intermittent rotation of the washing tub includes the following steps: alternately executing a rotation period and a stop period; the rotation During the period, the washing tub rotates at the set speed v for t1 seconds; during the stall period, the washing tub stops rotating for t2 seconds.
A method of adding additives to a washing machine according to claim 27, characterized in that the duration t2 of each stop period is a preset value called based on the amount of additive Vn this time; the rotation speed v of each rotation period and t1 is the default value called based on the additive dosage Vn during the next stop period.
An additive adding method for a washing machine according to claim 27, characterized in that as the additive adding process continues to run, the running time t1 of each rotation period gradually becomes longer and the set rotation speed v gradually becomes smaller; each time The duration t2 of the rotation period gradually becomes shorter; preferably, as the additive injection process continues to run, the additive injection amount Vn of each rotation period gradually becomes smaller.
A washing machine applying the method of adding additives according to any one of claims 21 to 29, which includes an additive adding device; the additive adding device is provided with a water supply waterway for water supply to flow through, and a delivery device for adding additives to the water supply waterway. Structure; the outlet of the water supply waterway is connected to the liquid outlet structure, and the liquid ejection structure is provided with an injection outlet toward the washing tub of the washing machine for injecting the mixed liquid of additives and water into the washing tub.
An additive delivery device, which includes: a water supply waterway for water supply to flow through; a delivery unit for delivering additives to the water supply waterway; characterized in that: an air extraction structure is used to mix air into the water supply flowing through the water supply waterway, and is mixed with air The water supply water flow and the added additives are used to stimulate foaming; the liquid outlet structure, the outlet of the water supply waterway is connected to the liquid outlet structure, is used to put the mixture with foam.
An additive delivery device according to claim 31, characterized in that the air extraction structure includes a venturi tube, the venturi tube is connected in series on the water supply waterway, and the negative pressure suction port of the venturi tube is connected to the external atmosphere. Under the action of the water supply flow flowing through the Venturi tube, external air enters the self-pressure suction port and mixes with the water supply water flow to form a water flow containing air particles.
An additive delivery device according to claim 32, characterized in that the additive delivery device includes a water box, the water supply waterway is integrated on the upper cover of the water box, and a drawer portion that can be pulled outward is provided in the water box. The negative pressure suction port of the Venturi tube is opened downward and is connected to the internal cavity of the water box through the corresponding hollow opening on the lower side of the upper cover of the water box.
An additive delivery device according to claim 32, characterized in that a liquid suction port connected to the delivery unit is provided on the water supply waterway, and a venturi tube is provided upstream of the liquid suction port; preferably, a liquid suction port is provided on the water supply waterway. There are multiple liquid suction ports, each liquid suction port is located in the liquid suction part of the water supply waterway, and the venturi tube is located upstream of the liquid suction part.
An additive dispensing device according to claim 32, characterized in that a downwardly concave installation groove is provided on the water supply waterway, the venturi tube is installed in the installation groove, and the bottom of the installation groove is provided with an opening that penetrates up and down. The opening is relatively connected with the negative pressure suction port provided on the venturi tube, and the opening is located at the lowest point of the water supply waterway.
An additive dispensing device according to claim 35, characterized in that the installation groove is a semi-cylindrical groove extending horizontally and opening upward, and the opening is opened on the side wall of the semi-cylindrical groove and extends in the circumferential direction. arc-shaped gap.
An additive dispensing device according to claim 35, characterized in that the part of the installation groove exceeds the water outlet end of the Venturi tube and constitutes the downstream water supply waterway part, and the excess part of the installation groove is axially along the water outlet of the Venturi tube. extend.
An additive dispensing device according to any one of claims 31 to 37, further comprising a mixing structure disposed in the water supply waterway for mixing the water supply water flow mixed with air and the additives put into the water supply waterway. Stimulate to generate foam; preferably, the mixing structure is located downstream of the liquid suction port connected to the delivery unit and the water supply waterway.
An additive delivery device according to any one of claims 31 to 37, characterized in that a pressure relief structure is provided on the water supply waterway upstream of the venturi tube to connect the inside of the water supply waterway with the external atmosphere for pressure relief and ventilation. Preferably, the pressure relief structure includes a ventilation port provided on the water supply waterway to connect the inside of the water supply waterway with the outside atmosphere. A one-way pressure relief valve is installed at the ventilation port so that the ventilation port can only be used on the water supply waterway. Opens when internal pressure is too high.
A washing machine, which includes a washing tub for holding a load to be processed, and is characterized in that it also includes an additive delivery device according to any one of claims 31 to 39, and the inlet of the water supply channel of the additive delivery device is connected to the entrance of the washing machine. The water pipes are connected, and the liquid outlet structure of the additive dispensing device is located on the casing, and/or door body, and/or water tank, and/or window mat of the washing machine, and the liquid outlet structure is sprayed toward the washing tub of the washing machine.