CN109957926B

CN109957926B - Automatic throwing device and washing machine

Info

Publication number: CN109957926B
Application number: CN201711421291.1A
Authority: CN
Inventors: 梁启队; 张华成
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2017-12-25
Filing date: 2017-12-25
Publication date: 2023-07-21
Anticipated expiration: 2037-12-25
Also published as: CN109957926A

Abstract

The invention discloses an automatic throwing device and a washing machine, wherein the automatic throwing device comprises a washing box, the washing box comprises at least one chamber for accommodating washing agent, a liquid outlet is arranged at the bottom of the chamber, a downward concave runner is arranged at the bottom of the chamber, and the end part of the runner is communicated with the liquid outlet so that the residual washing agent in the chamber is discharged to the liquid outlet along the runner. The bottom of the chamber of the detergent box is provided with the flow channel communicated with the liquid outlet, so that the liquid such as the detergent stored in the chamber can flow towards the flow channel in a converging way, the residual liquid with a large area at the bottom of the chamber is avoided, and the purpose of reducing the residual detergent in the chamber is achieved. Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.

Description

Automatic throwing device and washing machine

Technical Field

The invention belongs to the technical field of washing devices, and particularly relates to an automatic detergent and washing powder feeding device of a washing machine.

Background

Along with the acceleration of the life rhythm and the continuous improvement of the energy-saving consciousness of consumers, users pay more attention to energy-saving and convenient household appliances when purchasing the household appliances. The washing machine is used as household appliances with higher household use frequency, and energy conservation and convenience become important factors for customers to purchase. Washing machines with the function of automatically putting in detergent are more and more popular with users, and most of common washing machines on the market at present are manually added with detergent when washing clothes, the putting-in amount is difficult to grasp, and the washing effect is poor and the washing ratio is low when the using amount of the detergent is small; when the consumption of the detergent is too large, the detergent is wasted, the rinsing difficulty is increased, the water, electricity and time are wasted, and the cost of single washing is increased. Based on this, washing machine manufacturers have sequentially put forward washing machines that automatically throw in detergents.

The present invention has been made in view of this.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the defects of the prior art and providing an automatic detergent feeding device so as to realize the purpose of automatically adding and feeding the detergent; the second object of the invention is to provide an automatic feeding device for washing machine, so as to realize the purpose of automatically detecting the stored detergent; the third object of the invention is to provide an automatic feeding device for a washing machine, so as to realize the purposes of quickly discharging the detergent stored in the detergent box and reducing the residual quantity in the cavity.

In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:

the utility model provides an automatic dispensing device, its includes the washing box, and the washing box includes at least one cavity that holds the detergent, and the cavity bottom is equipped with the liquid outlet, and the cavity bottom is equipped with the runner of undercut, and the tip and the liquid outlet of runner are linked together to make the interior remaining detergent of cavity follow the runner and discharge to the liquid outlet.

Further, the bottom of the cavity is provided with at least one runner extending from the front end to the rear end, and one end of the runner extends to be communicated with the liquid outlet.

Further, a liquid outlet is arranged at the bottom of the side wall of the detergent box, and the liquid outlet is flush with or lower than the bottom wall of the end part of the flow channel.

Further, the bottom wall of the flow channel gradually reduces in height from the front end to the rear end, and the rear end of the flow channel is communicated with the liquid outlet.

Further, three mutually independent chambers, namely a detergent chamber, a softener chamber and a washing machine powder chamber, are arranged on the detergent box; the rear ends of the detergent cavity and the softener cavity are respectively provided with a detergent liquid outlet and a softener liquid outlet, the bottoms of the cavities of the detergent cavity and the softener cavity are respectively provided with flow channels, and the rear ends of the two flow channels are respectively communicated with the detergent liquid outlet and the softener liquid outlet in a one-to-one correspondence manner.

Further, the detergent box comprises a softener cavity and a detergent cavity which are arranged on the left side and the right side relatively independently, and a relatively independent washing powder cavity is arranged in the middle of the detergent cavity.

Further, floats for checking the liquid storage height are respectively arranged in the chambers, detection grooves which are used for the floats to fall and are sunken downwards are respectively arranged in the middle area of the bottom of the chambers, the detection grooves are connected with one end of the flow channel, and the other end of the flow channel is communicated with a liquid outlet at the rear side of the chambers; preferably, the bottom of the detection groove is arranged parallel to the bottom of the flow channel; or the bottom of the detection groove is an inclined surface which is inclined downwards towards the direction of the flow channel.

Further, the detection groove is internally provided with a support rib which extends along the radial direction to the center of the detection groove and is vertically arranged, and the upper end of the support rib is contacted with the bottom of the floater so as to support the floater and prevent the floater from adhering with residual detergent in the detection groove.

Further, a downward sunken liquid collecting groove is formed in the rear side of the cavity, the liquid collecting groove is arranged corresponding to the liquid outlet, and the liquid collecting groove is communicated with the end part of the flow channel; preferably, the bottom of the liquid collecting tank is lower than the bottom of the flow channel; the liquid outlet is provided with a one-way valve which is horizontally arranged, and a water suction port of the one-way valve is arranged at the lower part of the center of the one-way valve; preferably, the water suction port of the one-way valve is arranged at the bottom closest to the liquid collecting tank, so that the detergent in the cavity can flow out completely through the one-way valve, and the discharge efficiency of the detergent is improved.

The invention also discloses a washing machine provided with the automatic feeding device.

By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.

The bottom of the chamber of the detergent box is provided with the flow channel communicated with the liquid outlet, so that the liquid such as the detergent stored in the chamber can flow towards the flow channel in a converging way, the residual liquid with a large area at the bottom of the chamber is avoided, and the purpose of reducing the residual detergent in the chamber is achieved.

Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view showing the structure of a detergent box according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a detergent box according to an embodiment of the present invention;

FIG. 3 is a schematic view showing a horizontal cross-sectional structure of a detergent box according to an embodiment of the present invention;

FIG. 4 is a schematic view showing another horizontal cross-sectional structure of the detergent box according to the embodiment of the present invention;

FIG. 5 is a schematic view of an explosion structure of an automatic delivery device according to an embodiment of the present invention;

FIG. 6 is a schematic view showing another cross-sectional structure of a detergent box according to an embodiment of the present invention;

FIG. 7 is a schematic view of an exploded construction of a detergent box according to an embodiment of the present invention;

FIG. 8 is a schematic view showing the structure of a detergent box according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of an automatic dispensing apparatus according to an embodiment of the present invention;

FIG. 10 is a top view of a water circuit structure in an embodiment of the invention;

FIG. 11 is a schematic diagram of a control valve in an embodiment of the present invention;

FIGS. 12 and 13 are schematic views of the structure of the press rod according to the embodiment of the present invention from different angles;

FIGS. 14 and 15 are schematic views of different cross-sections of a detergent box according to an embodiment of the present invention;

FIG. 16 is a schematic view of a partial enlarged structure at A in FIG. 15 according to the embodiment of the present invention;

FIG. 17 is a schematic view showing the structure of the upper cover of the detergent box according to the embodiment of the present invention;

FIG. 18 is a schematic cross-sectional view of an automatic dispensing apparatus according to an embodiment of the present invention;

FIG. 19 is a schematic view of a partial enlarged structure at B in FIG. 18 according to the embodiment of the present invention;

reference numerals in the drawings illustrate: 100. the water box, 200, the detergent box, 1, the guide groove, 2, the filling opening, 3, the filling opening, 4, the upper cover, 5, the buckle, 6, the claw, 7, the cover plate, 8, the detergent cavity, 9, the connecting rod, 10, the blocking rib, 11, the float, 12, the magnet, 13, the reed pipe, 14, the upper cover, 15, the supporting rib, 16, the blocking rib, 17, the blocking rib, 18, the detection groove, 19, the supporting rib, 20, the detergent cavity, 21, the softener cavity, 22, the compression bar, 23, the pressing part, 24, the clamping protrusion, 25, the blocking rib, 26, the chute, 27, the buckle, 28, the lock tongue, 29, the clamping protrusion, 30, the clamping groove, 31, the runner, 32 liquid collecting grooves, 33, the liquid outlet, 34, the one-way valve, 35, the bracket, 36, the screw, 37, the screw column, 38, the guide rib, 39, the fixing rib, 40, the groove, 41, the supporting rib, 42, the water outlet, 43, the water blocking rib, 44, the inclined plane, 45, the water outlet cavity, 46, water inlet part, 47, connecting part, 48, water outlet part, 49, water inlet pipeline, 50, convex rib, 51, diversion surface, 52, reversing valve, 53, negative pressure hole, 54, venturi tube, 55, top cover plate, 56, sealing cover plate, 57, spray water inlet flow passage, 58, spray opening, 59, water homogenizing rib, 60, water homogenizing chamber, 61, flow sensor, 62, hot water inlet pipe, 63, cold water inlet pipe, 64, suction flow passage, 65, reverse folding part, 66, air vent, 67, control valve, 68, valve plug, 69, mounting part, 70, sealing ring, 71, return spring, 72, handle part, 73, limit post, 74, opening, 75, pressing hole, 76, washing powder inlet, 77, mounting rod, 78, plug rib, 79, slot, 80, inner snap-in protrusion, 81, down flange, 82, outer snap protrusion, 83, blocking part, 84, sealing convex rib, 85, snap protrusion, 86. support rib, 87, split rib, 88, stop rib, 89, turn-ups, 90, inner turn-ups, 91, mixing chamber.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in fig. 1 to 11, an automatic dispensing device is described in an embodiment of the present invention, which includes a water box 100 mounted on a washing machine, and a detergent box 200 is mounted in the water box 100; preferably, the detergent box 200 is installed in the water box 100 to be drawn outward. The detergent box 200 is provided with a plurality of independent chambers; preferably, the detergent box 200 has three independent chambers, respectively: a detergent chamber 8, a softener chamber 21 and a washing powder chamber 20.

The upper part of the washing powder cavity 20 is provided with a washing powder injection opening 2 for injecting washing powder into the cavity by a user, the water box 100 is also provided with a water inlet communicated with a water inlet pipeline of the washing machine, the water inlet is communicated with the injection opening 2 for injecting water into the washing powder cavity 8, so that the washing powder in the cavity is mixed by the water inlet, flows into the lower part of the water box 100 from a water outlet structure arranged at the bottom of the washing powder cavity 8, and flows into a washing cylinder of the washing machine through a pipeline arranged at the bottom of the water box 100 for washing clothes.

The top of the detergent cavity 8 and the softener cavity 21 are respectively provided with a liquid injection port 3 for injecting the softener of the detergent box, so that a user can correspondingly add the detergent and the softener into the cavities; when the washing machine needs to put in the detergent and/or softener, the negative pressure pumping device arranged at the upper part of the water box 100 starts to work, the detergent and/or softener stored in the cavity flows out of the liquid outlet 33 of the cavity at a certain flow rate, and flows into the lower part of the water box 100 after the water inflow phases of the washing machine are mixed, and flows into the washing drum of the washing machine through the pipeline arranged at the bottom of the water box 100 to wash clothes.

Example 1

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device, which includes a detergent box 200, wherein the detergent box 200 includes at least one chamber for accommodating detergent, a liquid outlet 33 is provided at the bottom of the chamber, a downward recessed flow channel 31 is provided at the bottom of the chamber, and an end of the flow channel 31 is communicated with the liquid outlet 33, so that the detergent remaining in the chamber is discharged to the liquid outlet 33 along the flow channel 31. A one-way valve 34 is arranged at the liquid outlet 33, so that the detergent or softener stored in the chamber flows out of the chamber through the one-way valve 34.

In this embodiment, at least one flow channel 31 extending from the front end to the rear end is provided at the bottom of the chamber, and one end of the flow channel 31 extends to be communicated with the liquid outlet 33.

In this embodiment, a liquid outlet 33 is disposed at the bottom of the side wall of the detergent box 200, and the liquid outlet 33 is flush with or lower than the bottom wall of the end of the flow channel 31. Preferably, the bottom wall of the flow channel 31 gradually decreases in height from the front end to the rear end, and the rear end of the flow channel 31 communicates with the liquid outlet 33, so that the residue in the flow channel is guided to flow toward the liquid outlet by the inclined bottom wall.

In this embodiment, the detergent box 200 is provided with three independent chambers, namely a detergent chamber 8, a softener chamber 21 and a washing machine powder chamber 20; the rear ends of the detergent cavity 8 and the softener cavity 21 are respectively provided with a detergent liquid outlet and a softener liquid outlet, the bottoms of the cavities of the detergent cavity 8 and the softener cavity 21 are respectively provided with flow channels 31, and the rear ends of the two flow channels 31 are respectively communicated with the detergent liquid outlet and the softener liquid outlet in a one-to-one correspondence manner.

In this embodiment, the detergent box 200 includes a softener cavity 21 and a detergent cavity 8 which are disposed separately from each other, and a relatively independent detergent cavity 20 is disposed in the middle of the detergent cavity 8.

In the embodiment, a floater 11 for checking the liquid storage height is respectively arranged in a softener cavity 21 and a detergent cavity 8, a detection groove 18 which is used for the floater 11 to fall and is sunken downwards is respectively arranged in the middle area of the bottom of the cavity, the detection groove 18 is connected with one end of a flow channel 31, and the other end of the flow channel 31 is communicated with a liquid outlet 33 at the rear side of the cavity; preferably, the bottom of the detection groove 18 is arranged flush with the bottom of the flow channel 31; or the bottom of the detection groove 18 is a slope inclined downward toward the flow path 31 to guide the detergent in the detection groove 18 to flow along the flow path 31.

In this embodiment, a support rib 19 extending radially toward the center of the detection groove 18 is disposed in the detection groove 18, and the upper end of the support rib 19 contacts the bottom of the float 11 to support the float 11 to prevent adhesion with the detergent remaining in the detection groove 18.

In this embodiment, a downward concave liquid collecting groove 32 is arranged at the rear side of the chamber, the liquid collecting groove 32 is arranged corresponding to the liquid outlet 33, and the liquid collecting groove 32 is communicated with the end part of the flow channel 31; preferably, the bottom of the sump 32 is disposed lower than the bottom of the flow channel 31. The liquid collecting groove with the height lower than that of the flow channel is arranged at the rear end of the flow channel, so that liquid such as detergent in the flow channel flows towards the liquid collecting groove, and residues of substances such as detergent in the flow channel are further reduced. Further preferably, the liquid outlet 33 is provided with a one-way valve 34, the one-way valve 34 is horizontally arranged, and a water suction port of the one-way valve 34 is arranged at the lower part of the center of the one-way valve 34; preferably, the water suction port of the check valve 34 is disposed at the bottom nearest to the sump 32 so that the detergent in the chamber can flow out entirely through the check valve, thereby improving the discharge efficiency of the detergent.

Example two

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device, which includes a detergent box 200 installed in a water box 100 in a drawable manner, wherein the detergent box 200 is installed with a compression bar 22 with one end connected in a plug-in manner, and the other end of the compression bar 22 is provided with a locking tongue 28 protruding outwards, so that after a user presses the compression bar, the locking tongue contracts towards the inside of the detergent box to release the locking state of the locking tongue.

The compression bar capable of generating elastic deformation under the action of external force is arranged on the detergent box, so that a user can press the compression bar, a lock tongue arranged on the compression bar can shrink and move, and the purposes of separating the lock tongue from the water box or locking and limiting are achieved.

In this embodiment, the detergent box 200 includes a housing and an upper cover 4 fastened on the top, the upper cover 4 is provided with a compression bar 22, the front end of the compression bar 22 is inserted with the upper cover 4 correspondingly, and the rear end is provided with a lock tongue 28 protruding upwards, so that after the user installs the compression bar 22 downwards, the rear end of the compression bar 22 is elastically deformed, but the lock tongue 28 is contracted into the detergent box 200.

In this embodiment, the compression bar 22 is horizontally installed on the lower side of the upper cover 4, and the front end of the compression bar 22 is correspondingly inserted into the chute 26 provided on the lower side of the upper cover 4 and is clamped and fixed; the rear end of the compression bar 22 is provided with a lock tongue 28 which protrudes upwards, the upper cover 4 is provided with an opening 74 for the lock tongue 28 to correspondingly extend out, and the upper end part of the lock tongue 28 is arranged beyond the upper surface of the upper cover 4; preferably, a circle of downward bent flanges are arranged at the opening 74 to guide the moving track of the lock tongue 28 and prevent the lock tongue 28 from being separated from the opening 74.

In this embodiment, the latch 28 includes a vertically disposed plate, and the extending direction of the plate is perpendicular to the drawing direction of the detergent box 200, and two ends of the plate are respectively provided with a turning plate bent towards the rear end of the detergent box; preferably, the lower end of the lock tongue 28 is detachably connected with the compression bar 22 correspondingly.

In the embodiment, the lower end of the lock tongue 28 is provided with a vertically extending mounting rod 77, and the lower end of the mounting rod 77 is provided with a radially protruding clamping protrusion 29; the front end of the compression bar 22 is provided with a mounting section, the mounting section is provided with a clamping groove 30 for clamping the mounting bar, and the front end or the rear end of the clamping groove 30 correspondingly increases the horizontal spacing to guide the mounting bar 77 to slide in and be clamped and fixed by the clamping protrusion 29.

In this embodiment, the front and rear sides of the lock tongue 28 are respectively provided with a vertically upward extending limit post 73, the limit post 73 is arranged at the outer side of the flanging of the opening 74, and the upper end surface of the limit post 73 is correspondingly attached to and contacted with the lower side of the upper cover 4; preferably, two parallel guide ribs are arranged on the lower side of the upper cover 4, the guide ribs extend axially along the compression bar 22 from the flanging of the opening 74, and the limiting column 73 is clamped in a gap between the two guide ribs.

In this embodiment, the middle part of the compression bar 22 is provided with an upward protruding pressing part 23, and the upper cover 4 of the detergent box is correspondingly provided with a pressing hole 75 for the pressing part 23 to penetrate, so that a user applies a downward pressing force to the pressing part 23 to drive the rear end of the compression bar 22 to generate downward elastic displacement, and the lock tongue 28 is correspondingly retracted into the detergent box 200; preferably, the upper surface of the pressing portion 23 is flush with the upper surface of the upper cover 4.

In this embodiment, a supporting rib 41 extending vertically upwards is disposed in the cavity, the supporting rib 41 is correspondingly disposed under the pressing portion 23, a movable margin is provided between the top end of the supporting rib 41 and the lower side of the pressing portion 23, and the pressing bar 22 is supported and limited after the pressing portion 23 is pressed downwards, so as to prevent the pressing bar 22 from falling due to excessive downward elastic deformation.

In this embodiment, a sliding groove 26 extending along the drawing direction of the detergent box is provided at the lower side of the upper cover 4, a gap between two side walls of the sliding groove 26 is provided for the front end of the pressing rod 22 to insert correspondingly, a blocking rib 25 connecting the two side walls is provided at the middle part of the sliding groove 26, and a clamping protrusion 24 corresponding to the blocking rib 25 is provided at the front end of the pressing rod 22, so that after the front end of the pressing rod 22 is inserted into the sliding groove 26 correspondingly, the clamping protrusion 24 slides into the front side of the blocking rib 25 correspondingly and is clamped and fixed relatively.

In this embodiment, the rear end of the compression bar 22 is biased to one side relative to the front end, so that a user generates an oblique moment to the pressing force in the middle of the compression bar 22, thereby reducing the requirement on the force required for pressing, and further improving the convenience of pressing the lock tongue.

When a user pulls the detergent box outwards, after the detergent box is pulled outwards to a certain distance, the lock catch is in limit contact with the upper edge of the water box, and the detergent box cannot be pulled outwards any more; at this time, the pressing part in the middle of the pressing rod is exposed to the outside of the water box, and the user presses the pressing part downwards to enable the pressing rod to generate elastic deformation, after the lock catch is separated from the upper edge of the water box, the user pulls the detergent box outwards, so that the detergent box can be pulled out of the water box, and the purpose of disassembling the detergent box is achieved.

Example III

As shown in fig. 1 to 9, an automatic dispensing device is described in this embodiment, which includes a detergent box 200, and the detergent box 200 is provided with at least one chamber for containing detergent; a floater 11 floating on the liquid level is arranged in the cavity, magnetic 12 iron is arranged in the floater 11, and a reed pipe 13 is correspondingly arranged below the floater 11 so as to correspondingly detect the height of the floater 11 and further obtain the liquid level in the detergent box cavity 200.

Through installing the float that floats along with the liquid level in the detergent, softener stock solution intracavity of detergent box to detect the magnet that sets up inside the float, in order to obtain the change of height of float, and then reach the purpose of carrying out quick, the accurate detection to the liquid level height in the detergent box cavity, and then in time send out the warning suggestion that reminds the user cavity to store detergent, softener inadequately.

In the embodiment, a vertically extending connecting rod 9 is arranged in the cavity, the upper end of the connecting rod 9 is hinged with the upper cover 4 of the detergent box, and the lower end of the connecting rod is fixedly connected with a floater 11; preferably, two blocking ribs 10 extending downwards in a protruding mode are arranged on the upper cover 4 of the detergent box, the connecting rod 9 is correspondingly clamped in a gap between the two blocking ribs 10, and two sides of the connecting rod 9 are correspondingly attached to the blocking ribs 10 to limit movement of the connecting rod 9.

In this embodiment, the lower end of the connecting rod 9 is a bending section, the bending end extends along the horizontal direction, and the end of the bending section is fixedly connected with the upper part of one side of the float 11.

In this embodiment, the float 11 comprises a hollow housing, and the housing is fixedly connected with the outer side and the lower end of the connecting rod 9; the interior of the housing forms a sealed hollow chamber within which a magnet 12 is fixedly mounted.

In this embodiment, the housing of the float 11 includes a corresponding snap-closed upper cover 14, the upper cover 14 is provided with a supporting rib 15 protruding downwards, the magnet 12 is correspondingly placed in the housing and is placed on the bottom wall of the housing, and the lower end of the supporting piece 15 provided on the upper cover 14 is correspondingly in limit contact with the upper surface of the magnet 12, so as to correspondingly clamp and fix the magnet 12 between the supporting rib 15 and the bottom wall of the housing; preferably, a plurality of ribs 16 extending towards the center direction and distributed at intervals are arranged on the inner side wall of the shell, and the outer side of the magnet 12 is in limit contact with the extending ends of the ribs 16 respectively so as to clamp and mount the magnet 12 in the shell and prevent horizontal displacement.

In this embodiment, the detergent box 200 is drawably installed in the water box 100, the reed switch 13 is fixedly installed at the lower side of the water box 100, and the reed switch 13 is vertically below the float 11 after the detergent box 200 is pushed into the water box 100, so as to send out a liquid shortage alarm prompt signal when the float 11 descends to a set height.

In this embodiment, the detergent box 200 includes a softener cavity 21 and a detergent cavity 8 which are independently arranged in the left and right directions, and a relatively independent detergent cavity 20 is arranged in the middle of the detergent cavity 8; the softener cavity 21 and the detergent cavity 8 are respectively and correspondingly provided with a floater 11 for detecting the liquid level height of the softener and the detergent, and the lower parts of the softener cavity and the detergent cavity are respectively and correspondingly provided with a reed pipe 13 for detecting the height of the floater 11.

In this embodiment, the middle area of the bottom of the chamber is respectively provided with a downward concave detection groove 18 for the float 11 to fall down, so that the float 11 correspondingly falls into the detection groove 18 when falling to the bottom of the chamber; the detection groove 18 is communicated with a liquid outlet 33 at the rear side of the chamber through a flow channel 31 with the bottom of the chamber recessed downwards; preferably, the bottom of the detection groove 18 is arranged flush with the bottom of the flow channel 31; or the bottom of the detection groove 18 is a slope inclined downward toward the flow path 31.

In this embodiment, a supporting rib 19 extending radially toward the center of the detecting groove 18 is disposed in the detecting groove 18, and the upper end of the supporting rib 19 contacts with the bottom of the float 11 to support the float 11 to prevent adhesion with the residual detergent in the detecting groove.

Example IV

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device comprising a detergent box 200 installed in a water box 100, at least one chamber for storing detergent being provided in the detergent box 200; the reed pipe 13 is installed on the outer wall of the water box 100, the reed pipe 13 is correspondingly installed with the magnet 12 arranged on the floater 11 which floats along with the liquid level in the cavity, and the reed pipe 13 performs proximity detection on the position of the magnet 12 so as to accurately detect the height of the floater 11 and further know the liquid level in the cavity.

The reed switch is arranged at the bottom of the water box so as to detect the accurate position of the magnet arranged on the floater at the corresponding position in the cavity, and the reed switch detects the magnet and sends out alarm prompt information when the floater descends to the empty liquid level so as to remind a user to supplement corresponding liquid such as detergent and the like in the cavity. Meanwhile, as the reed pipe is arranged on the outer side of the water box, the reed pipe is prevented from being contacted with liquid in the water box, and the reliability of the liquid level detection device is greatly improved.

In this embodiment, a bracket 35 is installed at the lower part of the bottom wall of the water tank 100, and the reed switch 13 is clamped and fixed between the bracket 35 and the bottom wall of the water tank 100.

In this embodiment, the lower side of the bottom wall of the water box 100 is provided with a fixing rib 39 protruding outwards, the lower side of the fixing rib 39 is provided with a groove, and the reed switch 13 is correspondingly clamped in the groove of the fixing rib 39; preferably, the lower side of the bottom wall of the water box 100 is provided with a plurality of fixing ribs 39 which are arranged in parallel at intervals, and the lower side of each fixing rib 39 is respectively provided with a groove for clamping and fixing the outer side of the reed switch 13 correspondingly, so that a plurality of parts of the reed switch 13 are clamped and fixed correspondingly to each fixing rib 39 correspondingly one by one.

In this embodiment, the support 35 is horizontally disposed, the support 35 at least covers the groove of the fixing rib 39, and the upper surface of the support 35 is correspondingly attached to the reed switch 13, so that the reed switch 13 is correspondingly clamped and fastened between the support 35 and the water tank 100.

In this embodiment, the bracket 35 is fixedly screwed to the water tank 100 by at least one screw 36, and preferably, both ends and the middle of the bracket 35 are fixedly connected to the water tank 100 by a corresponding screw 36. In this embodiment, the lower side of the bottom wall of the water tank 100 is provided with a screw column 37 protruding outwards, the screw column 37 is correspondingly attached to the upper surface of the bracket 35, and the screw column 37 is provided with a screw hole extending along the axial direction, so that the screw 36 passes through the bracket 35 and is correspondingly screwed with the screw hole on the screw column 7.

In this embodiment, a guiding rib 38 protruding downward is provided at the lower side of the bottom wall of the water tank 100, and the guiding rib 38 is inserted corresponding to the bracket 35 to pre-position the mounting position of the bracket 35, so that the user directly inserts the bracket 35 corresponding to the guiding rib 38 to pre-position the bracket at a specific position, and then screws 36 are used to fix the bracket, so as to achieve the purpose of quick positioning and mounting of the reed switch 13.

In this embodiment, the lower side of the bottom wall of the water tank 100 is provided with an upward concave groove 40, and the bracket 35 is correspondingly embedded and installed in the groove 40; preferably, the lower surface of the bracket 35 is flush with the lower side of the bottom wall of the water box 100, so as to reduce the overall height of the water box and the installation space of the automatic throwing device.

Example five

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device comprising a detergent box 200 installed in a drawable manner in a water box 100, the top of the detergent box 200 being provided with an injection port 2 for adding detergent to an internal detergent cavity; the top of the detergent box 200 is provided with a guide groove 1, one end of the guide groove 1 is communicated with the injection opening 2, and the other end extends to the periphery of the detergent box 200, so that the liquid overflowed from the injection opening 2 flows along the guide groove 1 to the periphery of the detergent box 200 and falls into the lower part of the water box 100 along the gap between the detergent box 200 and the water box 100.

The top of the detergent box is provided with the guide groove, so that washing powder water overflowed in the process of adding the washing powder is drained to the corresponding position of the periphery of the washing machine through the guide groove and falls into the lower part of the water box through a gap at the corresponding position, thereby avoiding the situation that the washing powder water randomly flows on the top surface of the detergent box, influences the use body feeling of a user and even flows out of the water box from the drawing opening part of the detergent box.

In this embodiment, the detergent box 200 includes an upper cover 4 fastened to the top of the housing, a detergent injection port 2 for injecting detergent and water into a detergent cavity 20 in the detergent box 200 is provided on the upper cover 4, the detergent injection port 2 is provided in front of the upper cover 4, a guiding slot 1 recessed downward is provided on the upper surface of the upper cover 4, the injection port 2 is provided at one end of the guiding slot 1, and the other end of the guiding slot 1 extends to the rear side of the detergent box.

In this embodiment, the guiding slot 1 extends along the drawing direction of the detergent box, the front end of the guiding slot 1 is provided with a detergent injection opening 2, the rear end of the guiding slot 1 extends to the rear side of the detergent box 200, and a certain gap is formed between the rear side of the detergent box 200 and the rear side wall of the water box 100 for guiding overflowed water to flow into the lower part of the water box 100; preferably, the washing powder injection port 2 is arranged at the bottom of the front end of the guide groove 1; it is further preferable that the height of the washing powder injection port 2 is lower than the bottom of the guide groove 1.

In this embodiment, the front side, the left and right sides of guide slot 1 are equipped with the barrier wall that blocks rivers respectively, and the barrier wall is from the inclined plane that upwards gradually inclines to the outside of guide slot from the bottom to constitute, and the rear side of guide slot 1 is opened to the open setting of overflow is in order to flow backward along guide slot 1 with the washing powder water that overflows, and guide to the detergent box rear side, has avoided the detergent box front end to have the overflow, has influenced the problem that the user used the somatosensory.

In this embodiment, the radial width of the rear part of the guiding groove 1 is gradually narrowed to guide the overflow water to flow toward the middle part in a converging way; preferably, the rear part of at least one side wall of the guide groove 1 is a transition surface extending towards the middle part, so that the rear part of the guide groove 1 is gradually narrowed in a horn shape; it is further preferred that the transition is smoothly curved to reduce the residual water flow in the guide channel.

Example six

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device, in which a detergent box 200 is installed in a water box 100 in a drawable manner, the detergent box 200 includes a housing disposed in an open manner, and an upper cover 4 fastened to an opening at the top of the housing, where one side of the upper cover 4 is correspondingly inserted into the housing, and the opposite side of the upper cover 4 is correspondingly fastened to the housing, so that the upper cover 4 is correspondingly and fixedly fastened to the opening at the top of the housing.

The top of the detergent box is provided with the upper cover which can be opened and closed and is fixedly connected, so that the upper cover of the detergent box and the support of the shell of the detergent box are directly fixedly connected through the buckle, and the joint is wrapped and sealed, thereby realizing the purposes of quick clamping and fixing installation between the upper cover and the shell of the detergent box and effectively improving the sealing performance of the detergent box.

As shown in fig. 18, in this embodiment, at least one supporting rib 86 protruding downward is provided at the lower side of the middle part of the upper cover 4, and the supporting rib 86 is in corresponding spacing supporting contact with a dividing rib 87 for dividing different chambers inside the detergent box 200; preferably, the top of the dividing rib 87 is provided with a groove correspondingly inserted with the lower end of the supporting rib 86, so that the supporting rib 86 is fixedly connected with the dividing rib 87 in a corresponding inserted manner, and the bottom end of the supporting rib 86 is contacted with the top end of the dividing rib 87 to limit and support, so that the supporting force of the upper cover 4 is improved.

In this embodiment, the front side of the upper cover 4 is provided with at least one claw 6 protruding outwards and extending in parallel, the front side of the detergent box housing is provided with a blocking part 83 protruding upwards, and the blocking part 83 is provided with a bayonet corresponding to the claw 6 for plugging and clamping. Preferably, the claw 6 comprises a downward vertical protruding insertion rib 78, the top of the blocking part 83 is provided with a slot 79 correspondingly matched with the insertion rib 78, so that a sealing insertion surface is formed at the contact position of the insertion rib and the slot to prevent the detergent in the detergent box from flowing out; the bottom surface of the claw 6 is also provided with at least one clamping protrusion protruding downwards, the top surface of the blocking part 83 is provided with a clamping groove corresponding to the clamping protrusion, and the clamping protrusion and the clamping groove are correspondingly clamped and fixed after the upper cover 4 is buckled, so that the fixed assembly between the upper cover and the detergent box shell is ensured. Preferably, a clamping convex 85 is respectively arranged at the left end and the right end of the clamping jaw and the middle part of the clamping jaw

In the embodiment, the rear side of the upper cover 4 is provided with a buckle 5 which extends downwards vertically and is provided with an opening, the rear side of the detergent box 200 is provided with a blocking rib 17 which protrudes backwards and extends vertically, and the blocking rib 17 is correspondingly clamped into the opening arranged on the buckle 5; preferably, the blocking rib 17 is gradually and outwards inclined from top to bottom to guide the buckle 2 to elastically deform and slide downwards until the blocking rib 17 is correspondingly inserted into an opening formed in the buckle 5 after the upper cover 4 is correspondingly buckled with the opening of the detergent box 200. Preferably, the rear side of the upper cover is provided with two buckles, and the two buckles are respectively positioned near the left end and the right end of the upper cover so as to ensure the stability of the rear clamping connection of the upper cover and further ensure that the buckling fixation between the upper cover and the shell of the detergent box 200 is firmer.

In the embodiment, a circle of downward flanging 81 which is bent downwards is arranged on the periphery of the upper cover 4, and the downward flanging 81 correspondingly adheres and wraps the opening of the shell so as to seal and cover the buckling connection part of the upper cover 4 and the shell; preferably, a circle of slots 79 protruding upwards are arranged at the opening of the shell, and a circle of corresponding downward extending inserting ribs 78 are arranged on the lower surface of the upper cover 4, so that when the upper cover 4 is buckled at the opening of the detergent box 200 correspondingly, the inserting ribs 78 are inserted into the slots 79 correspondingly, and the tightness of the connection part is enhanced.

As shown in fig. 14 and 15, in this embodiment, a circle of downward flange 81 bent vertically downward is provided on the outer periphery of the upper cover 4, a circle of outwardly protruding sealing ribs 84 are provided on the top of the housing of the detergent box 200, and the outer peripheral surface of the sealing ribs 84 is correspondingly sealed and attached to the inner wall of the downward flange 81, so that the junction between the upper cover and the housing of the detergent box forms a surface seal.

Meanwhile, an inward convex inner clamping protrusion 80 is arranged on the inner side of the lower flanging 81, an outward convex outer clamping protrusion 82 is arranged on the periphery of the sealing convex rib 84, and the inner clamping protrusion 80 is correspondingly arranged on the lower side of the outer clamping protrusion 82 so that the two clamping protrusions are correspondingly clamped and fixed after the upper cover 4 is buckled, and further the fixed assembly between the upper cover and the detergent box shell is realized.

In this embodiment, a circle of vertically extending insertion rib 78 is further provided at the lower side of the upper cover 4, the insertion rib 78 extends along the side wall of the housing of the detergent box 200, and a slot 79 corresponding to the insertion rib 78 is provided at the top of the side wall of the housing, so that the lower end of the insertion rib 78 is correspondingly inserted into the slot 79 after the upper cover 4 is buckled, and the inner side and the outer side of the insertion rib 78 are correspondingly sealed and attached to the side wall of the slot 79, so that the connection between the upper cover 4 and the housing of the detergent box 200 is sealed by the insertion rib 78, and the sealing effect of the buckling connection at the periphery of the upper cover 4 of the detergent box is further improved.

Example seven

As shown in fig. 1 to 9, in the present embodiment, an automatic dispensing device is described, which includes a detergent box 200 installed in a water box 100, a detergent chamber 20 is provided on the detergent box 200, and a water outlet 42 is provided at the bottom of the detergent chamber 20; a water retaining structure is arranged at the water outlet 42 to guide the water flow from vertical to horizontal to flow out of the washing powder cavity.

By arranging the water outlet with the water retaining structure below the detergent box, washing powder water flows out of the washing powder cavity from the water outlet horizontally, so that the smoothness of water outlet is improved, and the water choking condition of the water outlet flow from the water outlet to the washing powder cavity is avoided; meanwhile, accumulated water in the water box is separated from the water outlet through the water retaining structure, so that backflow of water stored in the lower part of the water box into the washing powder cavity through the water outlet is prevented.

In this embodiment, a water outlet chamber 45 is provided on one side of the detergent chamber 20, which is concave downward and protrudes from the bottom wall of the detergent box 200, and a water outlet 42 is provided on one side wall of the water outlet chamber 45, so that the detergent water in the detergent chamber can flow out.

In this embodiment, the water outlet cavity 45 is disposed at the rear side of the washing powder cavity 20, and the front side of the washing powder cavity 20 is provided with an injection port 2 for water inlet and washing powder injection; the front side wall of the water outlet cavity 45 is provided with a vertically arranged water outlet 42, so that the washing powder water flowing out of the washing powder cavity 20 flows out forwards horizontally, further, the situation that the washing powder water is diffused backwards and splashes with other parts at the rear part of the water box 100 in the falling process is avoided, the washing powder water directly flows to the front side of the water box, flows into the washing machine along with a channel arranged at the front side of the water box, and further, the running smoothness of the automatic throwing device is improved.

In this embodiment, the bottom of the detergent box at the front side of the water outlet 42 is provided with a slope 44 gradually sloping downwards from the water outlet to guide the water flow of the water outlet to flow downwards in an inclined manner; preferably, the upper side of the inclined plane 44 is arranged flush with the upper side of the water outlet 42 correspondingly, and the lower side of the inclined plane 44 is arranged flush with the middle of the water outlet 42 correspondingly; it is further preferred that a horizontally extending transition surface is provided between the upper side of the inclined surface 44 and the upper side of the water outlet 42.

In this embodiment, two sides of the inclined surface 44 are respectively provided with vertically extending water blocking ribs 43 to block the water flowing out from diffusing to two sides; preferably, the extending direction of the water blocking ribs 43 is parallel to the axial direction of the water outlet 42; further preferably, the rear sides of the two water blocking ribs 43 are in sealing connection with the corresponding side edges of the water outlet 42.

In this embodiment, the bottom of the water outlet cavity 45 is a curved surface or an inclined surface gradually inclined downward from the left side and the right side to the middle, so as to guide the water outlet in the water outlet cavity 45 to flow toward the middle of the water outlet 42 in a converging manner, and further avoid the water outlet from diffusing toward the two sides.

In this embodiment, the rear side of the detergent cavity 20 is provided with a water outlet portion 48, and the extending direction of the water outlet portion 48 is perpendicular to the drawing direction of the detergent box 200; one side, the front side and the rear side of the water outlet part 48 are respectively sealed, and the other side is communicated with the main body of the washing machine powder cavity 20; the bottom wall of the water outlet part 48 is recessed downwards to form a water outlet cavity 45, and the bottom of the front side wall of the water outlet part 48 is provided with an opening to form a water outlet 42; preferably, the width of the water outlet 48 is smaller than the width of the main body of the washing powder chamber 20 to increase the pressure of the water outlet flow.

In this embodiment, the washing powder chamber 20 includes a water inlet 46, a connecting portion 47 and a water outlet 48, which are sequentially disposed from front to back, and an injection port 2 is disposed at the top of the water inlet 46; the connecting part 47 extends along the drawing and moving direction of the detergent box 200, the front end of the connecting part 47 is communicated with the rear side of the water inlet part 46, the rear end of the connecting part 47 is communicated with the left side of the water outlet part 48, and the radial width of the connecting part 47 is gradually narrowed from front to back.

In this embodiment, the bottom wall of the washing powder chamber 20 is an inclined plane inclined from the injection port to the water outlet so as to guide the water inlet in the washing powder chamber 20 to flow toward the water outlet 42 in a converging manner; preferably, the bottom wall of the water outlet cavity 45 is sequentially divided into an inclined part, a horizontal part and a vertical part from the side communicated with the washing powder cavity 20 body to the opposite side, the inclined part is an inclined plane gradually inclined downwards towards the direction of the horizontal part, the bottommost part of the inclined part is connected with the horizontally extending horizontal part, the vertical part extends along the vertical plane, the lower end of the vertical part is connected with the horizontal part, and the upper end of the vertical part is in sealing connection with the shell of the detergent box 200.

Example eight

As shown in fig. 1 to 9, an automatic dispensing device is described in this embodiment, which includes a detergent box 200, and the detergent box 200 is provided with at least one chamber for containing detergent; the top of the cavity is provided with a liquid injection port 3, one side of the liquid injection port 3 is provided with a convex rib 50 protruding downwards, at least one horizontal scale mark is arranged on the convex rib 50, and each horizontal scale mark is arranged in parallel and level with the corresponding detergent liquid level in the cavity.

In this embodiment, the chamber of the detergent box 200 is provided with a plurality of horizontal graduation marks, and each horizontal graduation mark is arranged at the same level with the liquid level of the detergent with different doses, so as to prompt the user to add the corresponding amount of detergent into the chamber.

The downward protruding ribs are arranged at the liquid injection openings of the cavities of the detergent box, so that the corresponding heights of the maximum values of the injected detergents for users are correspondingly prompted by the scale marks arranged on the ribs, and overflow caused by overlarge injected detergent into the cavities by users is avoided.

In this embodiment, the liquid injection port 3 is a square opening horizontally arranged, and the rib 50 is disposed in the middle of the rear side of the square opening, so that the user can intuitively observe the scale marks of the rib after drawing out the detergent box.

In this embodiment, the rib 50 extends along an inclined plane gradually inclined forward from top to bottom, and the scale lines are disposed on the front side of the rib 50, so that the front side of the rib 50 is correspondingly disposed obliquely upward, which is further convenient for the user to observe the scale lines.

Preferably, in this embodiment, the lower side edge of the rib 50 extends along a horizontal line, and the bottom edge of the horizontally arranged rib 50 forms a horizontal scale line, so as to remind the user of stopping injecting the detergent when the detergent liquid surface is flush with the lower side edge of the rib during the detergent injection process. It is further preferred that the horizontal graduation line formed by the bottom edge of the rib 50 be flush with the level of the maximum amount of detergent stored in the chamber.

In this embodiment, the detergent box 200 includes a detergent cavity 8 and a softener cavity 21, the top parts of the detergent cavity 8 and the softener cavity 21 are respectively provided with corresponding liquid injection ports 3, and one sides of the two liquid injection ports 3 are respectively provided with a convex rib 50 protruding downwards, so that the horizontal scale marks arranged on the convex ribs are utilized to prompt the maximum liquid storage height of the detergent cavity or the softener cavity.

In this embodiment, the liquid injection port 3 is provided with a cover plate 7 correspondingly arranged in a covering manner, and one side of the cover plate 7 is hinged with the detergent box 200, so that the cover plate 7 can be installed on the detergent box 200 in an upward-turning and opening-closing manner. Preferably, the rear side of the cover plate 7 is correspondingly hinged with the rear side of the square liquid injection port 3, so that the cover plate 7 can be turned around the rear side edge of the cover plate 7 from front to back to open and close.

In this embodiment, one side of the cover 7 is provided with an outwardly protruding, horizontally extending handle portion 72, with a gap between the handle portion 72 and the top wall of the detergent box 200, so that the user can open the cover using the handle portion 72.

In this embodiment, a circle of guide surface 51 is provided on the top wall of the detergent box at the outer periphery of the liquid injection port 3, and the guide surface 51 is a tapered surface gradually inclined downward from the outer periphery to the inner periphery so as to guide the added detergent to flow into the cavity from the injection port.

In this embodiment, the inclined angle between the guide surface 51 and the horizontal plane is smaller than the inclined angle between the rib 50 and the horizontal plane, so as to further increase the inclined angle of the rib, and maximize the convenience for the user to observe the scale marks on the rib.

Example nine

As shown in fig. 1 to 11, in the present embodiment, an automatic dispensing device is described, which includes a detergent box 200 installed in a water box 100, the detergent box 200 being provided with at least one chamber for containing detergent; the water inlet pipeline 49 of the washing machine is communicated with a spraying port 58 or a washing powder water inlet 76 arranged on the water box 100, the water inlet pipeline 49 is provided with a venturi tube 54, the venturi tube 54 is provided with a negative pressure hole 53, and the negative pressure hole 53 is communicated with the liquid outlet 33 of the chamber so as to pump the detergent stored in the chamber into the water inlet flow and flow into the water box along with the water inlet flow from the spraying port 58. Preferably, the outlet of the venturi tube 54 is communicated with the mixing cavity 91, so that the extracted detergent and the inlet water are mixed in the mixing cavity 91, then communicated with the spraying inlet water flow channel 57 through the water outlet of the mixing cavity 91, and finally flows out through a spraying opening 58 arranged at the tail end of the spraying inlet water flow channel 57.

In this embodiment, the detergent box 200 is provided with a detergent chamber 8 and a softener chamber 21 for storing the softener of the detergent box, and the liquid outlet 33 of the detergent chamber, the liquid outlet 33 of the softener chamber, and the water inlet pipeline 49 are respectively and correspondingly communicated with three inlets of the reversing valve 52 one by one, and an outlet of the reversing valve 52 is communicated with the negative pressure hole 53 through the suction flow channel 64 so as to correspondingly convey the detergent, the softener or the water into the water inlet flow.

In this embodiment, the small opening end of the venturi tube 54 is communicated with the water inlet pipeline 49, the large opening end is communicated with the spraying opening 58 through the spraying water inlet runner 57, and the aperture gradual change position of the venturi tube 54 is provided with the negative pressure hole 53. In this embodiment, the water inlet line 49 includes a cold water inlet pipe 63 and a hot water inlet pipe 62 for feeding a controlled temperature inlet water stream into the automatic dispensing device.

In the present embodiment, the suction flow path 64 is provided with a flow sensor 61 for detecting the amount of the flowing detergent; preferably, the flow sensor 61 is disposed at the end of the suction flow channel 64 connected to the venturi tube 54 to check the flow rate of water flowing out of the suction flow channel, thereby indirectly obtaining the amount of inflow detergent.

In the embodiment, two ends of the washing powder water injection flow passage 77 are respectively communicated with the water inlet pipeline 49 and the washing powder water inlet 76; the detergent inlet 76 is arranged corresponding to the injection port 2, so that the detergent inlet 76 is positioned vertically above the injection port 2 after the detergent box 200 is correspondingly pushed into the water box 100, and the washing machine inlet water flows into the detergent cavity 20 through the detergent water injection flow channel 77, the detergent inlet 76 and the injection port 2 to wash the detergent put into the detergent cavity 20 to the lower part of the water box 100.

In this embodiment, the top of the water box 100 is formed by a top cover plate 55, a cover plate 56 which is horizontally laid correspondingly is arranged at the lower side of the top cover plate 55, the top cover plate 55 and the cover plate 56 are welded together by adopting a fusion process, a flow passage structure which is used for flowing water and is arranged in a sealing way is formed between the top cover plate 55 and the cover plate 56, a part of the flow passage structure forms a spraying water inlet flow passage 57, a part of the flow passage structure forms a suction flow passage 64, a part of the flow passage structure forms a washing powder water injection flow passage 77, and the ends of the spraying water inlet flow passage and the suction flow passage and the washing powder water injection flow passage 77 respectively penetrate through the cover plate to form a joint.

Examples ten

As shown in fig. 1 to 11, in the present embodiment, an automatic dispensing device is described, which includes a detergent box 200 installed inside a water box 100, the detergent box 200 is provided with at least one chamber for containing detergent, and a liquid outlet 33 of the chamber is communicated with a negative suction structure through a suction flow channel 64; the suction flow channel 64 is spirally arranged at the top of the water box 100 to increase the length of the suction flow channel as much as possible.

Through set up the suction runner of heliciform on the water box to extend the length of suction runner as far as possible, and then enlarge the volume of suction runner, make the automatic device of throwing in singly draw in the quantity of detergent in the suction runner increase, and then realized having improved the automatic device of throwing in singly and put in the quantity, improved the purpose that the detergent was thrown in efficiency.

In this embodiment, the suction flow channel 64 is connected to the chamber outlet 33 or the water inlet line 49 of the washing machine via a reversing valve, so that the detergent or the water can be controllably introduced into the suction flow channel 64, respectively.

In this embodiment, the top of the water box 100 is formed by a top cover plate 55, a cover plate 56 which is horizontally laid correspondingly is arranged on the lower side of the top cover plate 55, the top cover plate 55 and the cover plate 56 are welded together by adopting a fusion process, a flow channel structure for water to flow is formed between the top cover plate 55 and the cover plate 56, a part of the flow channel structure forms a suction flow channel 64, the water inlet end of the suction flow channel 64 penetrates out of the cover plate 56 to be communicated with the outlet of the reversing valve 52, and the water outlet end penetrates out of the cover plate 56 to be communicated with the negative pressure suction structure.

In this embodiment, the suction flow channel 64 extends from the water inlet end at the rear side of the water box 100 to the front side of the water box 100, at least to the middle of the water box 100, and then winds back to the water outlet end at the rear side of the water box 100; at least one reverse-folded part 65 which is arranged in a reverse-folded and coiled way is arranged in the middle of the suction flow channel 64; preferably, a plurality of parallel return portions 65 are provided at the middle of the suction flow path 64, and the extension direction of each return portion 65 is perpendicular to the drawing direction of the detergent box 200.

In the present embodiment, the suction flow path 64 is provided with a flow sensor 61 for detecting the amount of the detergent sucked; preferably, the flow sensor 61 is disposed at a connection end of the suction flow channel 64 and the suction negative pressure structure, so as to detect the inflow amount of water flowing out of the suction flow channel, and further indirectly obtain the detergent amount sucked into the suction flow channel.

In this embodiment, the detergent box 200 is provided with a detergent cavity 8 and a softener cavity 20 for storing detergent and softener respectively, and the bottoms of the detergent cavity 8 and the softener cavity 20 are respectively provided with a liquid outlet 33; the reversing valve 52 is provided with three inlets which are respectively communicated with the liquid outlet 33 of the detergent cavity, the liquid outlet 33 of the softener cavity and the water inlet pipeline 49 of the washing machine in a one-to-one correspondence mode, and the water outlet of the reversing valve 52 is communicated with the inlet end of the suction flow channel 64 so as to controllably flow the detergent, the softener or the water into the suction flow channel.

Example eleven

As shown in fig. 1 to 11, in the present embodiment, there is described an automatic dispensing apparatus comprising a shower inlet flow path 57 for flowing pumped detergent into a water box 100, wherein the shower inlet flow path 57 is provided with an air vent 66 communicated with the outside, and a control valve 67 is provided at the air vent 66 so as to correspondingly block the air vent 66 by the pressure of water flowing through a valve plug 68 of the control valve 67 when flowing through the shower inlet flow path 57; when no water flows through the spray water inlet flow channel 57, the valve plug 68 of the control valve 67 automatically resets to open the air vent 66, so that residual water in the spray water inlet flow channel 57 automatically flows out under the action of gravity.

Through setting up the bleeder vent of installing the control valve on spraying the runner that intakes to make automatic throwing device stop work back control valve open the bleeder vent voluntarily, make the residual water in the runner that intakes that sprays receive the inside and outside pressure differential effect of runner and automatic outflow from the mouth that drenches that spouts, avoided the user to open still to have the emergence of circumstances such as drip after the washing machine door body, and then prevented that residual water breeds bacterium in the water route and residual water leads to icing the back water route to produce the problem of cracking under very low temperature in the water route.

In this embodiment, the control valve 67 includes a valve plug 68 mounted inside the air vent, the valve plug 68 can be pushed and moved axially outwards along the opening under the action of water pressure to block the air vent 66 correspondingly, and a return spring 71 is disposed between the valve plug 68 and the inner wall of the shower inlet flow channel 57 to apply an elastic force to the valve plug 68 to drive the valve plug 68 to open the opening.

In this embodiment, the valve plug 68 includes a mounting portion 69 extending axially along the bore, and a sealing ring 70 fitted over the mounting portion 69.

As shown in fig. 18 and 19, in this embodiment, the return spring 71 is sleeved on the outer periphery of the mounting portion 69, one end of the return spring 71 is in limit contact with the turned edge 89 which is horizontally bent outwards at the second end of the mounting portion 69, and the other end is in limit contact with the inner wall of the spray water inlet channel 24. Preferably, the upper end of the return spring 71 is in limit contact with the lower side of the flange 89 provided at the upper end of the mounting portion 69, and the lower end of the return spring 71 is in limit contact with the upper side of the inner flange 90 bent horizontally inwards by the air hole 66, so that the valve plug 68 is mounted inside the air hole 66 under the supporting action of the return spring 71 without detachment. Further preferably, the outward protruding flange 89 provided at the upper end of the mounting portion 69 has an outer diameter larger than the inner diameter of the vent hole 66, further preventing the valve plug 68 from being detached from the vent hole 66.

In this embodiment, a sleeve protruding outwards is arranged on the spraying water inlet flow channel 57, a vent hole 66 coaxially arranged is arranged at the protruding end of the sleeve, the other end of the sleeve is communicated with the spraying water inlet flow channel 57, and a valve plug 68 of a control valve 67 is axially arranged and installed inside the sleeve; preferably, the second end of the mounting portion 69 is correspondingly attached to the inner wall of the sleeve, the radial width of the stop rib at the first end of the mounting portion 69 is larger than the diameter of the ventilation hole 66, and the radial width of the sealing ring 70 is larger than the diameter of the ventilation hole 66.

In the embodiment, a supporting rib extending vertically upwards is arranged on the bottom wall of the spraying water inlet flow channel 57, and the upper end of the supporting rib is in supporting contact with the valve plug 68; preferably, a certain gap is reserved between the supporting ribs and the two side walls of the spraying water inlet flow channel 57 so as to enable water to pass through; further preferably, the support rib is in supporting contact with the corresponding center of gravity of the valve plug 68, and the upper end surface of the support rib is a smooth horizontal support surface.

In this embodiment, the water inlet end of the spray water inlet channel 57 is communicated with the negative pressure absorbing structure, the end of the spray water inlet channel 57 is provided with a spray port 58 for spraying water into the water box 100, and the air holes 66 are arranged on the spray water inlet channel 57 near the water inlet end.

In this embodiment, the top of the water box 100 is formed by a top cover plate 55, a cover plate 56 which is horizontally laid correspondingly is arranged at the lower side of the top cover plate 55, the top cover plate 55 and the cover plate 56 are welded together by adopting a fusion process, a flow passage structure which is used for flowing water and is arranged in a sealing manner is formed between the top cover plate 55 and the cover plate 56, a part of the flow passage structure forms a spraying water inlet flow passage 57, the water inlet end of the spraying water inlet flow passage 57 penetrates through the cover plate 56 to be communicated with the negative pressure absorbing structure, and a spraying port 58 which penetrates through the cover plate 56 to be communicated with the lower part of the water box 100 is arranged at the tail end.

In this embodiment, the cover plate 56 is provided with a vent hole 66 for communicating the shower inlet flow channel 57 with the inside of the water box 100, and a vertically arranged control valve 67 is installed on the vent hole 66.

In this embodiment, the suction flow channel 64 is connected to the spray water inlet flow channel 57 through a negative pressure suction structure, two spray ports 58 for spraying water into the water box are provided at the end of the spray water inlet flow channel 57, and water homogenizing ribs 59 are provided between the two spray ports 58 to make the water inlet flow uniformly flow to the two spray ports 58.

In this embodiment, two branch passages separated by a split are provided at the end of the spray water inlet passage 57, and a spray port 58 is provided on each of the two branch passages; the end of the spray water inlet flow channel 57 is provided with a water homogenizing cavity 60, and a water homogenizing rib 59 perpendicular to the water flow direction is arranged in the water homogenizing cavity 60 so as to guide the water inlet flow to uniformly flow to the branch flow channels at two sides; preferably, the water homogenizing rib 59 is disposed in the middle of the water homogenizing chamber 60, and a certain gap is formed between two sides of the water homogenizing rib 59 and two side walls of the water homogenizing chamber 60.

In this embodiment, the spray opening 58 is disposed at the front of the water box 100, so that the spray water directly flows to the water outlet provided at the front side of the bottom of the water box 100 and flows into the washing tub of the washing machine.

Example twelve

In this embodiment, a control method of an automatic dispensing device is described, in which a detergent stored in a chamber is pumped to a pumping flow channel and then mixed with inlet water, and then flows into a water box, and in the process of pumping the detergent, the inlet water of the detergent box is pumped into the pumping flow channel at intervals, so that the amount of inlet water flowing out of the pumping flow channel is detected, and the pumped detergent amount is accurately known.

By the mode, the flow sensor can realize the purpose of accurately and quantitatively detecting the detergent input amount only by detecting the water inflow; meanwhile, the problems of insufficient detection precision and the like of the flow sensor caused by different viscosities of the detergent and the inflow water flow are effectively avoided.

In this embodiment, the suction flow passage is alternately communicated with the detergent storage chamber and the water intake pipe every certain period of time to alternately suck the detergent and intake water; and detecting the water inflow amount flowing out of the suction flow channel in the period of time when the detergent storage chamber is communicated with the suction flow channel, wherein the detection value is the amount of the detergent pumped corresponding to the process.

In this embodiment, the interval time is less than the time for the entire flow of the detergent into the suction flow path; preferably, the communication time between the suction flow passage and the detergent storage chamber and the water inlet pipeline is different, and the communication time between the suction flow passage and the detergent storage chamber is smaller than the ratio of the volume of the suction flow passage to the flow rate of the detergent.

In this embodiment, the switching time node of the reversing valve set at the inlet of the suction flow channel may be automatically determined that all the detergent in the suction flow channel has been discharged when the set time period t1 is reached, and correspondingly switched to be in communication with the water inlet; and when the set time period t2 is reached, the suction flow channel is automatically judged to be full of the inflow water, and the suction flow channel is correspondingly switched to be communicated with the detergent.

The method can also adopt the following mode to automatically judge the medium in the suction flow channel so as to further determine the switching time node; for example: in the process of communicating the suction flow passage with the detergent storage chamber, if the detection precision of the flow sensor is changed, the suction flow passage is judged to be completely filled with the detergent, and the suction flow passage is communicated with the water inlet pipeline, and the single-time adding amount of the detergent is the maximum volume of the suction flow passage.

Or adopting a quantitative mode to judge the medium in the suction flow channel so as to determine a switching time node; for example: when the suction flow channel is switched to a time node communicated with the detergent storage chamber, the measured value of the flow sensor is accumulated to obtain the water yield flowing out of the suction flow channel, when the measured water yield reaches the single maximum input amount of the suction flow channel, the reversing valve is regulated to enable the suction flow channel to be communicated with the water inlet pipeline, after the water inlet time reaches the set time T, the detergent in the flow channel is completely washed, the reversing valve is regulated again to enable the suction flow channel to be communicated with the detergent storage chamber, and the detergent extraction program is executed again.

In this embodiment, the specific process of the control method of the automatic delivery device is as follows,

s1, starting the automatic throwing device to work;

s2, the suction flow channel is communicated with the water inlet pipeline until water flows out of the suction flow channel;

s3, the suction flow channel is communicated with the detergent storage cavity, and the detergent starts to be pumped into the suction flow channel;

s4, detecting the inflow amount flowing out of the suction flow channel, and judging whether the detected value reaches the set delivery amount or not; if the execution of the step S6 is reached, if the execution of the step S5 is not reached;

S5, judging whether the suction flow channel flows out of the detergent; if yes, stopping detection, counting the detection value into an accumulated value, and executing a step S6; if not, continuing pumping the detergent;

s6, communicating the suction flow channel with the water inlet pipeline until water flows out of the suction flow channel;

s7, judging whether the accumulated value reaches a set throwing amount or not; if yes, executing step S8, and if not, executing step S3;

and S8, stopping the automatic throwing device.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims

1. The utility model provides an automatic dispensing device, its includes the washing box, and the washing box includes at least one cavity that holds the detergent, and cavity bottom is equipped with liquid outlet, its characterized in that: the bottom of the cavity is provided with a downward concave runner, and the end part of the runner is communicated with the liquid outlet so as to discharge the residual detergent in the cavity to the liquid outlet along the runner;

The cavity is internally provided with floats for checking the liquid storage height, the middle area of the bottom of the cavity is provided with detection grooves which are used for the floats to fall and are sunken downwards, the detection grooves are connected with one end of a flow channel, and the other end of the flow channel is communicated with a liquid outlet at the rear side of the cavity; the bottom of the detection groove is arranged flush with the bottom of the flow channel, or the bottom of the detection groove is an inclined plane which is inclined and descends to the direction of the flow channel;

the detergent stored in the chamber is pumped to the suction flow passage and then mixed with the inflow water and flows into the water box, and in the process of pumping the detergent, the detergent and the inflow water are pumped into the suction flow passage at intervals so as to detect the inflow water flowing out of the suction flow passage and accurately obtain the pumped detergent;

the suction flow channel is alternately communicated with the detergent storage chamber and the water inlet pipeline every certain interval period so as to alternately suck the detergent and inlet water; detecting the water inflow amount flowing out of the suction flow channel in the period of time when the detergent storage chamber is communicated with the suction flow channel, wherein the detection value is the amount of the detergent pumped corresponding to the process;

automatically judging the medium in the suction flow channel, further determining a switching time node, and adopting the following modes: in the process of communicating the suction flow passage with the detergent storage chamber, if the detection precision of the flow sensor is changed, the suction flow passage is judged to be completely filled with the detergent, and the suction flow passage is communicated with the water inlet pipeline, and the single-time adding amount of the detergent is the maximum volume of the suction flow passage.

2. An automatic dispensing device according to claim 1, wherein the bottom of the chamber is provided with at least one flow passage extending from the front end to the rear end, one end of the flow passage extending to communicate with the liquid outlet.

3. An automatic dispensing device according to claim 1, wherein the bottom of the side wall of the detergent box is provided with a liquid outlet which is flush with or lower than the bottom wall of the end of the flow channel.

4. An automatic dispensing device according to claim 3, wherein the bottom wall of the flow channel gradually decreases in height from the front end to the rear end, the rear end of the flow channel being in communication with the liquid outlet.

5. An automatic dispensing device according to any one of claims 1 to 4, wherein the detergent box is provided with three mutually independent chambers, namely a detergent chamber, a softener chamber and a washing machine powder chamber; the rear ends of the detergent cavity and the softener cavity are respectively provided with a detergent liquid outlet and a softener liquid outlet, the bottoms of the cavities of the detergent cavity and the softener cavity are respectively provided with flow channels, and the rear ends of the two flow channels are respectively communicated with the detergent liquid outlet and the softener liquid outlet in a one-to-one correspondence manner.

6. The automatic dispensing device of claim 5, wherein the detergent box comprises a softener cavity and a detergent cavity which are arranged in a left-right independent manner, and a relatively independent washing powder cavity is arranged in the middle of the detergent cavity.

7. An automatic dispensing device according to any one of claims 1 to 4, wherein a vertically disposed support rib is provided in the detection tank and extends radially toward the center of the detection tank, and the upper end of the support rib contacts the bottom of the float to support the float to prevent adhesion with residual detergent in the detection tank.

8. An automatic dispensing device according to any one of claims 1 to 4, wherein a downwardly concave sump is provided at the rear side of the chamber, said sump being in communication with the end of the flow passage in correspondence with the liquid outlet.

9. An automatic dispensing device according to claim 8, wherein the bottom of the sump is located below the bottom of the flow passage.

10. A washing machine, characterized in that: an automatic dispensing device according to any one of claims 1 to 9.