CN109957928B

CN109957928B - Automatic releasing device and control method

Info

Publication number: CN109957928B
Application number: CN201711421535.6A
Authority: CN
Inventors: 梁启队; 李敬德; 徐安沅; 薄凌凤
Original assignee: Chongqing Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Chongqing Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2017-12-25
Filing date: 2017-12-25
Publication date: 2022-11-25
Anticipated expiration: 2037-12-25
Also published as: CN109957928A

Abstract

The invention discloses an automatic putting device, which comprises a detergent box arranged in a water box, wherein the detergent box is provided with at least one chamber for holding detergent; the water inlet pipeline of the washing machine is communicated with a spraying opening arranged on the water box, the water inlet pipeline is provided with a Venturi tube, the Venturi tube is provided with a negative pressure hole, and the negative pressure hole is communicated with a liquid outlet of the cavity, so that the detergent stored in the cavity is pumped into the water inlet flow and flows into the water box from the spraying opening along with the water inlet flow. The invention also discloses a control method of the automatic feeding device, the detergent stored in the chamber is pumped to the pumping flow channel and then mixed with the inlet water, and then flows into the water box, and in the process of pumping the detergent, the detergent box is pumped into the pumping flow channel at intervals to feed water, so that the amount of the inlet water flowing out of the pumping flow channel is detected, and the pumped detergent amount is accurately obtained.

Description

Automatic releasing device and control method

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 and a control method of the automatic feeding device.

Background

With the acceleration of life rhythm and the continuous improvement of energy-saving consciousness of consumers, users pay more attention to energy-saving convenient household appliances when purchasing the household appliances. The washing machine is used as a household appliance with high household use frequency, and the energy conservation and convenience become important factors for customers to choose. Washing machines with the function of automatically putting detergent are more and more favored by users, while the common washing machines on the market at present mostly add detergent manually, the putting amount is difficult to control, and the washing effect is poor and the cleaning ratio is low when the detergent amount is small; when the dosage of the detergent is larger, the detergent is wasted, the rinsing difficulty is increased, the water and electricity are wasted, and the single-time washing cost is increased. Based on this, washing machine manufacturers have successively introduced washing machines that automatically dispense detergent.

The present invention has been made in view of this situation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an automatic detergent feeding device to achieve the purpose of automatically adding and feeding detergent; the second objective of the present invention is to provide an automatic dispensing device for a washing machine, so as to achieve the purpose of automatically detecting the stored detergent.

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

an automatic putting device comprises a detergent box arranged in a water box, wherein the detergent box is provided with at least one chamber for holding detergent; the water inlet pipeline of the washing machine is communicated with a spraying opening arranged on the water box, the water inlet pipeline is provided with a Venturi tube, the Venturi tube is provided with a negative pressure hole, and the negative pressure hole is communicated with a liquid outlet of the cavity, so that the detergent stored in the cavity is pumped into the water inlet flow and flows into the water box from the spraying opening along with the water inlet flow.

Furthermore, a detergent cavity and a softener cavity for respectively storing softener of the detergent box are arranged on the detergent box, a detergent cavity liquid outlet, a softener cavity liquid outlet and a water inlet pipe are respectively communicated with the inlets of the reversing valves in a one-to-one correspondence manner, and the outlets of the reversing valves are communicated with the negative pressure hole through the suction flow channels so as to correspondingly convey the detergent, the softener or inlet water to the water inlet flow.

Furthermore, the small-mouth end of the Venturi tube is communicated with the water inlet pipeline, the large-mouth end of the Venturi tube is communicated with the spraying port through the spraying water inlet flow channel, and a negative pressure hole is formed in the gradual change position of the aperture of the Venturi tube.

Furthermore, a flow sensor for detecting the amount of the detergent flowing through the suction flow channel is arranged on the suction flow channel; preferably, a flow sensor is disposed at a connection end of the suction flow passage and the venturi tube to check a flow rate of water flowing out of the suction flow passage, thereby indirectly obtaining an amount of detergent flowing in.

Furthermore, the top of the water box is composed of a top cover plate, a cover plate which is horizontally laid correspondingly is arranged on the lower side of the top cover plate, the top cover plate and the cover plate are welded together by adopting a fusion coating process, a flow channel structure which is used for inflow water to flow and is arranged in a sealing mode is formed between the top cover plate and the cover plate, a spraying water inflow channel is formed by a part of the flow channel structure, a suction channel is formed by a part of the flow channel structure, and the end portions of the spraying water inflow channel and the suction channel penetrate out of the cover plate respectively to form a joint portion.

Another objective of the present invention is to provide a control method for an automatic dispensing device, in which detergent stored in a chamber is pumped into a pumping channel and then mixed with inlet water, and the mixture flows into a water box, and during pumping the detergent, the detergent box is pumped into the pumping channel at intervals, so as to detect the amount of inlet water flowing out of the pumping channel and accurately obtain the pumped detergent amount.

Furthermore, the suction flow channel is alternately communicated with the detergent storage chamber and the water inlet pipeline at intervals of a certain time period so as to suck the water in the detergent box at the bottom; and detecting the water inflow flowing out of the suction flow channel in a time period when the detergent storage chamber is communicated with the suction flow channel, wherein the detected value is the amount of the detergent pumped correspondingly in the process.

Furthermore, the interval time period is less than the time for all the detergent flowing into the suction flow channel; preferably, the communication time of the suction flow passage with the detergent storage chamber and the water inlet line is different, and the communication time of the suction flow passage with the detergent storage chamber is less than the ratio of the volume of the suction flow passage to the flow rate of the detergent.

Further, in the process that the suction flow channel is communicated with the detergent storage chamber, if the detection accuracy of the flow sensor is changed, the suction flow channel is judged to be completely filled with the detergent, the suction flow channel is switched to be communicated with the water inlet pipeline, and the single-time put-in amount of the detergent is the maximum volume of the suction flow channel.

Further, the specific process is as follows,

s1, starting working of an automatic releasing device;

s2, communicating the suction flow channel with a 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 is pumped into the suction flow channel;

s4, detecting the water inflow flowing out of the suction flow channel, and judging whether the detection value reaches a set input amount or not; if the step S6 is executed, if the step S5 is not executed;

s5, judging whether the detergent flows out of the suction flow channel or not; if yes, stopping detection, adding the detection value into the accumulated value, and executing the step S6; if not, continuing pumping the detergent;

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

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

and S8, stopping the automatic feeding device.

The invention also discloses a washing machine which is provided with any one of the automatic feeding devices.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

Through the structure, the automatic extraction of the detergent stored in the chamber through the negative pressure suction structure is realized, and the purpose of automatically extracting and putting the detergent is further achieved.

In addition, by the mode, the flow sensor can realize the purpose of accurately and quantitatively detecting the adding amount of the detergent only by detecting the inlet water; meanwhile, the problems that the detection precision of the flow sensor is insufficient and the like due to the fact that the viscosity of the detergent is different from that of the water inflow are effectively avoided.

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

The following describes 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 sectional view of a detergent box according to an embodiment of the present invention;

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

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

fig. 5 is an exploded view of an automatic dispensing device according to an embodiment of the present invention;

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

FIG. 7 is an exploded view 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 device according to an embodiment of the present invention;

FIG. 10 is a top view of a waterway structure in an embodiment of the present invention;

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

FIGS. 12 and 13 are schematic views of different angles of the strut in the embodiment of the present invention;

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

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

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

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

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

reference numbers in the drawings illustrate: 100. a water box 200, a detergent box 1, a guide groove 2, an injection port 3, a liquid injection port 4, an upper cover 5, a buckle 6, a claw 7, a cover plate 8, a detergent cavity 9, a connecting rod 10, a blocking rib 11, a floater 12, a magnet 13, a reed pipe 14, an upper cover 15, a support rib 16, a blocking rib 17, a blocking rib 18, a detection groove 19, a support rib 20, a washing powder cavity 21, a softener cavity 22, a pressure rod 23, a pressing part 24, a clamping protrusion 25, a blocking rib 26, a sliding groove 27, a buckle 28, a bolt 29, a clamping protrusion 30, a clamping groove 31, a flow passage 32, a liquid collecting groove 33, a liquid outlet 34, a one-way valve 35, a bracket 36, a screw 37, a screw column 38, a guide rib 39, a fixing rib 40, a groove 41, a support rib 42, a water outlet 43, a water retaining rib 44, a slope 45 and a water outlet cavity, 46, a water inlet part, 47, a connecting part, 48, a water outlet part, 49, a water inlet pipeline, 50, a convex rib, 51, a flow guide surface, 52, a reversing valve, 53, a negative pressure hole, 54, a Venturi tube, 55, a top cover plate, 56, a sealing cover plate, 57, a spraying water inlet channel, 58, a spraying port, 59, a water homogenizing rib, 60, a water homogenizing chamber, 61, a flow sensor, 62, a hot water inlet tube, 63, a cold water inlet tube, 64, a suction channel, 65, a folding part, 66, a vent hole, 67, a control valve, 68, a valve plug, 69, an installation part, 70, a sealing ring, 71, a reset spring, 72, a handle part, 73, a limiting column, 74, an opening, 75, a pressing hole, 76, a washing powder inlet, 77, an installation rod, 78, a plugging rib, 79, a slot, 80, an inner clamping rib, 81, a lower flanging, 82, an outer clamping rib, 83, a blocking part, 84, a sealing convex rib, 85 and a clamping rib, 86. support rib 87, dividing rib 88, stop rib 89, flanging 90, inner flanging 91 and mixing cavity.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 11, an automatic dispensing device according to an embodiment of the present invention includes a water tank 100 installed in a washing machine, and a detergent box 200 installed in the water tank 100; preferably, the detergent box 200 is installed in the water box 100 to be outwardly drawable. A plurality of independent chambers are provided on the detergent box 200; preferably, the detergent box 200 has three independent chambers, respectively: a detergent chamber 8, a softener chamber 21 and a laundry powder chamber 20.

The upper part of the washing powder cavity 20 is provided with a washing powder injection opening 2 for a user to inject washing powder into the cavity, 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 to inject water into the washing powder cavity 8, so that the washing machine powder in the cavity is flushed and mixed by the water inlet, then 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 then flows into a washing cylinder of the washing machine through a pipeline arranged at the bottom of the water box 100 to wash clothes.

The tops of the detergent cavity 8 and the softener cavity 21 are respectively provided with an 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 cavity; when the washing machine needs to put in the detergent and/or the softener, the negative pressure pumping device arranged at the upper part of the water box 100 starts to work, the detergent and/or the softener stored in the cavity flow out from the liquid outlet 33 of the cavity at a certain flow speed, the detergent and/or the softener flows into the lower part of the water box 100 after the water entering the washing machine is mixed, and then the mixture flows into a washing cylinder of the washing machine through a pipeline arranged at the bottom of the water box 100 to wash clothes.

Example one

As shown in fig. 1 to 9, this embodiment describes an automatic dispensing device, which includes a washing box 200, the washing box 200 includes at least one chamber for containing a washing agent, a liquid outlet 33 is disposed at the bottom of the chamber, a flow channel 31 is disposed at the bottom of the chamber, the flow channel 31 is recessed downward, and an end of the flow channel 31 is communicated with the liquid outlet 33, so that the washing agent remaining in the chamber is discharged toward the liquid outlet 33 along the flow channel 31. A one-way valve 34 is installed 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.

The bottom of the chamber of the detergent box is provided with the flow channel communicated with the liquid outlet, so that liquid such as detergent stored in the chamber is gathered and flows to the flow channel, large-area residual liquid at the bottom of the chamber is avoided, and the aim of reducing the amount of residual detergent in the chamber is fulfilled.

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

In this embodiment, the bottom of the sidewall of the detergent box 200 is provided with a liquid outlet 33, 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 is communicated 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 bottom of the cavity of the detergent cavity 8 and the cavity of the softener cavity 21 are respectively provided with a flow channel 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 relatively and independently arranged on the left and right, and a relatively independent washing powder cavity 20 is arranged in the middle of the detergent cavity 8.

In this embodiment, floats 11 for checking the liquid storage height are respectively arranged in the softener cavity 21 and the detergent cavity 8, a detection groove 18 which is used for the float 11 to fall and is concave 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 flush with the bottom of the flow channel 31; or the bottom of the detection groove 18 is an inclined surface which is inclined and descended towards the flow passage 31 so as to guide the detergent in the detection groove 18 to flow along the flow passage 31.

In this embodiment, a supporting rib 19 which extends radially to the center of the detection groove 18 and is vertically arranged is arranged in the detection groove 18, and the upper end of the supporting rib 19 contacts with the bottom of the floater 11 to support the floater 11 to prevent the floater 11 from being adhered to the residual detergent in the detection groove 18.

In this embodiment, a liquid collecting groove 32 which is recessed downward is formed in the rear side of the cavity, the liquid collecting groove 32 is arranged corresponding to the liquid outlet 33, and the liquid collecting groove 32 is communicated with the end of the flow channel 31; preferably, the bottom of the sump 32 is positioned lower than the bottom of the flow channel 31. The liquid collecting groove lower than the height 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, a check valve 34 is arranged at the liquid outlet 33, the check valve 34 is horizontally arranged, and a water suction port of the check valve 34 is arranged at the lower part of the center of the check valve 34; preferably, the suction opening of the check valve 34 is located closest to the bottom of the sump 32 so that all of the detergent in the chamber can flow out through the check valve, thereby improving the detergent discharge efficiency.

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, the detergent box 200 is installed with a pressing rod 22 with one end thereof being connected in a plugging manner, and the other end of the pressing rod 22 is provided with a latch 28 protruding outwards, so that the latch retracts towards the inside of the detergent box after a user presses the pressing rod to release the locking state of the latch.

The pressing rod capable of generating elastic deformation under the action of external force is arranged on the detergent box, so that a user can press the pressing rod, a lock tongue arranged on the pressing rod can contract and move, and the aim of separating the lock tongue from the water box or locking and limiting the lock tongue is fulfilled.

In this embodiment, the detergent box 200 includes a housing and an upper cover 4 fastened to the top, a pressing rod 22 is installed on the upper cover 4, the front end of the pressing rod 22 is inserted into the upper cover 4, and a latch 28 protruding upward is installed at the rear end of the pressing rod 22, so that after a user installs the pressing rod 22 downward, the rear end of the pressing rod 22 is elastically deformed and the latch 28 is retracted into the detergent box 200.

In this embodiment, the pressing rod 22 is horizontally installed at the lower side of the upper cover 4, and the front end of the pressing rod 22 is correspondingly inserted into the sliding groove 26 arranged at the lower side of the upper cover 4 and is clamped and fixed; the rear end of the pressure lever 22 is provided with a bolt 28 which protrudes and extends upwards, the upper cover 4 is provided with an opening 74 for the bolt 28 to correspondingly extend out, and the upper end part of the bolt 28 exceeds the upper surface of the upper cover 4; preferably, the opening 74 is provided with a downward bent flange to guide the moving track of the latch 28 and prevent the latch 28 from being disengaged from the opening 74.

In this embodiment, the lock tongue 28 includes a vertically disposed plate, 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 bending toward the rear end of the detergent box; preferably, the lower end of the lock tongue 28 is detachably connected with the pressing rod 22 correspondingly.

In this 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 pressure lever 22 is provided with a mounting section, the mounting section is provided with a clamping groove 30 for clamping the mounting lever, and the front end or the rear end of the clamping groove 30 correspondingly increases the horizontal distance so as to guide the mounting lever 77 to slide in and be clamped and fixed by the clamping protrusion 29.

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

In this embodiment, the middle of the pressing rod 22 is provided with a pressing portion 23 protruding upwards, and the upper cover 4 of the detergent box is correspondingly provided with a pressing hole 75 for the pressing portion 23 to penetrate through, so that a user applies a downward pressing force to the pressing portion 23 to drive the rear end of the pressing rod 22 to generate downward elastic displacement, so that the latch 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 upward is disposed in the cavity, the supporting rib 41 is correspondingly disposed vertically below the pressing portion 23, a moving margin is provided between the top end of the supporting rib 41 and the lower side of the pressing portion 23, and the pressing portion 23 is pressed downward to support and limit the pressing rod 22, so as to prevent the pressing rod 22 from falling off due to excessive downward elastic deformation.

In this embodiment, a sliding slot 26 extending along the drawing direction of the detergent box is disposed on the lower side of the upper cover 4, a gap between two side walls of the sliding slot 26 is provided for the front end of the pressing rod 22 to be inserted correspondingly, a blocking rib 25 connecting the two side walls is disposed in the middle of the sliding slot 26, and a locking protrusion 24 corresponding to the blocking rib 25 is disposed 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 slot 26 correspondingly, the locking protrusion 24 slides into the front side of the blocking rib 25 and is locked and fixed relatively.

In this embodiment, the rear end of the pressing rod 22 is set to be deviated to one side relative to the front end, so that the pressing force applied to the middle of the pressing rod 22 by the user generates an oblique moment, the requirement on the required force for pressing is further reduced, and the convenience for pressing the lock tongue by the user is further improved.

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 moment, the pressing part in the middle of the pressing rod is exposed outside the water box, a 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, and then the detergent box can be pumped outside the water box, so that the purpose of disassembling the detergent box is achieved.

EXAMPLE III

As shown in fig. 1 to 9, the present embodiment discloses an automatic dispensing device, which includes a detergent box 200, wherein the detergent box 200 is provided with at least one chamber for containing detergent; a floater 11 which floats and is connected with the liquid level is arranged in the chamber, a magnet 12 is arranged in the floater 11, and a reed switch 13 is correspondingly arranged below the floater 11 so as to correspondingly detect the height of the floater 11 and further know the liquid level height in the detergent box chamber 200.

The floater floating along with the liquid level is arranged in the liquid storage cavities of the detergent and the softener of the detergent box, and the magnet arranged inside the floater is detected to obtain the height change of the floater, so that the aim of quickly and accurately detecting the liquid level height in the cavity of the detergent box is fulfilled, and an alarm prompt for reminding a user of insufficient detergent and softener stored in the cavity is timely sent.

In the embodiment, a vertically extending connecting rod 9 is arranged in the chamber, 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 9 is fixedly connected with a floater 11; preferably, the upper cover 4 of the detergent box is provided with two blocking ribs 10 protruding downwards, 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 the movement of the connecting rod 9.

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

In this embodiment, the float 11 includes a hollow shell, and the shell is fixedly connected with the outer side and the lower end of the connecting rod 9; the interior of the shell forms a sealed hollow chamber, and a magnet 12 is fixedly arranged in the hollow chamber.

In this embodiment, the housing of the float 11 includes a corresponding fastening and sealing upper cover 14, a downwardly protruding support rib 15 is provided on the upper cover 14, the magnet 12 is correspondingly placed inside the housing and placed on the bottom wall of the housing, the lower end of the support member 15 provided on the upper cover 14 is in corresponding limit contact with the upper surface of the magnet 12, so as to clamp and fix the magnet 12 correspondingly between the support rib 15 and the bottom wall of the housing; preferably, the inner side wall of the housing is provided with a plurality of ribs 16 extending towards the center direction and arranged at intervals, and the outer side of the magnet 12 is in limit contact with the extending ends of the ribs 16 respectively, so that the magnet 12 is clamped and mounted inside the housing and horizontal displacement is prevented.

In this embodiment, the detergent box 200 is installed in the water box 100 in a drawable manner, the reed pipe 13 is fixedly installed at the lower side of the water box 100, and the reed pipe 13 is located vertically below the floater 11 after the detergent box 200 is pushed into the water box 100, so as to send out a liquid shortage warning signal when the floater 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 relatively and independently arranged at left and right, and a relatively independent washing powder cavity 20 is arranged in the middle of the detergent cavity 8; floaters 11 for detecting the liquid level heights of the softener and the detergent are correspondingly arranged in the softener cavity 21 and the detergent cavity 8 respectively, and reed pipes 13 for detecting the heights of the floaters 11 are correspondingly arranged below the softener cavity and the detergent cavity respectively.

In this embodiment, the middle region of the bottom of the chamber is respectively provided with a detection groove 18 which is used for the float 11 to fall and is concave downwards, 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 cavity through a flow passage 31 which is concave downwards at the bottom of the cavity; preferably, the bottom of the detection groove 18 is 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 channel 31.

In this embodiment, a supporting rib 19 which extends radially to the center of the detection groove 18 and is vertically arranged is arranged in the detection groove 18, and the upper end of the supporting rib 19 contacts with the bottom of the floater 11 so as to support the floater 11 and prevent the floater 11 from being adhered to residual detergent in the detection groove.

Example four

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, wherein at least one chamber for storing detergent is 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 and the magnet 12 arranged on the floater 11 floating along with the liquid level in the cavity are installed correspondingly, and the reed pipe 13 is used for detecting the position of the magnet 12 in an approaching mode 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 that accurate position detection is carried out on the magnet arranged on the floater at the corresponding position in the chamber, and when the floater descends to an empty liquid level, the reed switch detects the magnet and sends out alarm prompt information to remind a user of supplementing corresponding liquid such as detergent into the chamber. Meanwhile, the reed switch is arranged outside the water box, so that the contact between the reed switch and liquid inside the water box is avoided, and the reliability of the liquid level detection device is greatly improved.

In this embodiment, the bracket 35 is installed at the lower portion of the bottom wall of the water box 100, and the reed pipe 13 is clamped and fixed between the bracket 35 and the bottom wall of the water box 100.

In this embodiment, 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 pipe 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 arranged in parallel at intervals, and the lower side of each fixing rib 39 is respectively provided with a groove for correspondingly clamping and fixing the outer side of the reed pipe 13, so that a plurality of parts of the reed pipe 13 are clamped and fixed correspondingly to the fixing ribs 39 in a one-to-one correspondence manner.

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

In this embodiment, the bracket 35 is fixed and screwed to the water box 100 by at least one screw 36, and preferably, both ends and the middle part of the bracket 35 are respectively fixed and connected to the water box 100 by a corresponding screw 36. In this embodiment, the screw pillar 37 protruding outward is disposed on the lower side of the bottom wall of the water box 100, the screw pillar 37 is attached to the upper surface of the bracket 35, and the screw hole extending along the axial direction is disposed on the screw pillar 37, so that the screw 36 is screwed to the screw hole of the screw pillar 7 after passing through the bracket 35.

In this embodiment, the lower side of the bottom wall of the water box 100 is provided with a guide rib 38 protruding downward and extending, the guide rib 38 is inserted into the support 35 correspondingly to pre-position the mounting position of the support 35, so that a user can directly insert the support 35 into the specific position through the guide rib 38 correspondingly, and then fix the support 35 through the screw 36 by screwing, thereby achieving the purpose of quickly positioning and mounting the reed pipe 13.

In this embodiment, the lower side of the bottom wall of the water box 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 that the overall height of the water box is reduced, and the installation space of the automatic release device is reduced.

EXAMPLE five

As shown in fig. 1 to 9, the present embodiment describes an automatic dispensing device, which includes a detergent box 200 movably installed in a water box 100 in a drawing manner, wherein an injection port 2 for adding washing powder to an internal washing powder cavity is formed at the top of the detergent box 200; 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 port 2, and the other end extends to the periphery of the detergent box 200, so that the liquid overflowing from the injection port 2 flows to the periphery of the detergent box 200 along the guide groove 1 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 guide groove is arranged at the top of the detergent box, so that the washing powder water overflowing in the process of adding the washing powder is guided 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 the gap of the corresponding position, the phenomenon that the washing powder water randomly flows on the top surface of the detergent box, the user feels influenced by the washing powder water, and even the washing powder water flows out of the water box from the drawing opening part of the detergent box is avoided.

In this embodiment, the detergent box 200 includes an upper cover 4 fastened to the top of the casing, a detergent injection opening 2 for injecting detergent and inflow water into a detergent cavity 20 in the detergent box 200 is formed in the upper cover 4, the detergent injection opening 2 is formed in the front of the upper cover 4, a guide groove 1 recessed downward is formed in the upper surface of the upper cover 4, and the injection opening 2 is formed in one end of the guide groove 1, and the other end of the guide groove 1 extends to the rear side of the detergent box.

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

In this embodiment, the front side of guiding groove 1, the left and right sides are equipped with respectively and block the wall that blocks rivers, block the wall and be the inclined plane that upwards inclines gradually to the guiding groove outside from bottom to top and constitute, and the rear side of guiding groove 1 is uncovered and is set up to the overflow flows out, flows backward along guiding groove 1 with the laundry powder water that will overflow, and guide to detergent box rear side, has avoided detergent box front end to have the overflow, influence the problem that user's use was felt.

In the embodiment, the radial width of the rear part of the guide groove 1 is gradually narrowed so as to guide the overflow water to flow toward the middle part in a converging manner; 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 in a gradually narrowed trumpet shape; further preferably, the transition surface is in a smooth arc shape to reduce the remaining of water flow in the guide groove.

EXAMPLE six

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

But through the top with the detergent box set up to switching fixed connection's upper cover to make the upper cover of detergent box and detergent box casing support directly carry out looks fixed connection through the buckle, and wrap up sealedly in the junction, realized quick joint fixed mounting between upper cover and the detergent box casing, and effectively improved the purpose of detergent box leakproofness.

As shown in fig. 18, in the present embodiment, at least one downwardly protruding support rib 86 is disposed at the lower side of the middle portion of the upper cover 4, and the support rib 86 is in corresponding spacing support contact with the partition rib 87 for partitioning different chambers inside the detergent box 200; preferably, the top of the dividing rib 87 is provided with a groove which is 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 inserting manner, and the bottom end of the supporting rib 86 is contacted with the top end of the dividing rib 87 to limit support, so that the supporting force of the upper cover 4 is improved.

In this embodiment, at least one claw 6 protruding outward and extending in parallel is disposed on the front side of the upper cover 4, a blocking portion 83 protruding upward is disposed on the front side of the detergent box housing, and a bayonet corresponding to the claw 6 is disposed on the blocking portion 83. Preferably, the claw 6 comprises an insertion rib 78 protruding vertically downwards, and the top of the blocking part 83 is provided with an insertion slot 79 correspondingly matched with the insertion rib 78, so that a contact part of the insertion slot and the insertion rib 78 forms a sealing insertion surface to prevent the detergent in the detergent box from flowing out; the bottom surface of the clamping jaw 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, the clamping protrusion and the clamping groove are correspondingly clamped and fixed after the upper cover 4 is buckled, and then the fixed assembly between the upper cover and the detergent box shell is ensured. Preferably, the left end, the right end and the middle part of the clamping jaw are respectively provided with a clamping protrusion 85

In this embodiment, the rear side of the upper cover 4 is provided with a buckle 5 which extends vertically downwards 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 formed on the buckle 5; preferably, the blocking rib 17 is gradually inclined outward from top to bottom to guide the buckle 2 to elastically deform and slide downward until the upper cover 4 is correspondingly buckled with the opening of the detergent box 200, and then the blocking rib 17 is correspondingly inserted into the opening of the buckle 5. Preferably, the rear side of the upper cover is provided with two buckles, and the two buckles are respectively positioned at the left end and the right end of the upper cover to ensure the stability of the clamping at the rear part of the upper cover, so that the buckling and fixing between the upper cover and the shell of the detergent box 200 are firmer.

In this embodiment, a circle of downward turned-over edge 81 is arranged on the periphery of the upper cover 4, and the opening of the housing is correspondingly attached and wrapped by the downward turned-over edge 81 so as to seal and cover the buckling connection part of the upper cover 4 and the housing; preferably, the opening of the housing is provided with a circle of upwardly protruding slots 79, and the lower surface of the upper cover 4 is provided with a circle of corresponding downwardly extending insertion ribs 78, so that when the upper cover 4 is correspondingly fastened to the opening of the detergent box 200, the insertion ribs 78 are correspondingly inserted into the slots 79 to enhance the sealing performance of the connection.

As shown in fig. 14 and 15, in the present embodiment, the periphery of the upper cover 4 is provided with a downward turned edge 81, the top of the casing of the detergent box 200 is provided with a sealing rib 84, the sealing rib 84 protrudes outward, and the outer peripheral surface of the sealing rib 84 is in sealing contact with the inner wall of the downward turned edge 81, so that the joint of the upper cover and the casing of the detergent box forms a surface seal.

Meanwhile, an inner clamping protrusion 80 protruding inwards is arranged on the inner side of the lower flanging 81, an outer clamping protrusion 82 protruding outwards is arranged on the periphery of the sealing convex rib 84, 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, still be equipped with the grafting muscle 78 of the vertical extension of round at upper cover 4 downside, the casing lateral wall extension of grafting muscle 78 along detergent box 200, the top of casing lateral wall is equipped with and pegs graft the corresponding slot 79 of muscle 78, in order to make the lower extreme correspondence of grafting muscle 78 insert the slot 79 after upper cover 4 lock, and make the inside and outside of grafting muscle 78 and the corresponding sealed laminating of slot 79 lateral wall, and then realize that upper cover 4 seals through grafting muscle 78 with detergent box 200 casing junction, further improve the sealed effect of detergent box upper cover 4 periphery lock junction.

EXAMPLE seven

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

The water outlet with the water retaining structure is arranged below the detergent box, so that the washing powder water horizontally flows out of the washing powder cavity from the water outlet, the smoothness of water outlet is improved, and the situation that the water outlet water flows into the washing powder cavity from the water outlet in a choked manner is avoided; meanwhile, accumulated water in the water box is separated from the water outlet through the water retaining structure, so that the condition that the accumulated water at the lower part of the water box flows back into the washing powder cavity through the water outlet is prevented.

In this embodiment, a water outlet cavity 45 recessed downward and protruding from the bottom wall of the detergent box 200 is disposed on one side of the detergent cavity 20, and a water outlet 42 vertically disposed on one side wall of the water outlet cavity 45 is provided for the detergent water in the detergent cavity to 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 horizontally and forwards, the situations of backward diffusion and sputtering with other components at the rear part of the water box 100 in the falling process of the washing powder water are avoided, the washing powder water directly flows to the front side of the water box, and a channel arranged along the front side of the water box flows into the washing machine, so that the running smoothness of the automatic feeding device is improved.

In this embodiment, the bottom of the detergent box at the front side of the water outlet 42 is provided with an inclined surface 44 which is gradually inclined downwards from the water outlet to guide the water flow to flow downwards; preferably, the upper side of the inclined plane 44 is flush with the upper side of the water outlet 42, and the lower side of the inclined plane 44 is flush with the middle of the water outlet 42; further preferably, 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, the two sides of the inclined plane 44 are respectively provided with a water retaining rib 43 extending vertically to prevent the effluent from diffusing to the two sides; preferably, the extending direction of the water blocking rib 43 is parallel to the axial direction of the water outlet 42; preferably, the rear sides of the two water blocking ribs 43 are hermetically connected 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 which gradually inclines downwards from the left side to the right side to the middle part, so as to guide the outlet water in the water outlet cavity 45 to converge and flow towards the middle part of the water outlet 42, thereby preventing the outlet water from diffusing towards the two sides.

In this embodiment, the rear side of the washing powder chamber 20 is a water outlet portion 48, and the extending direction of the water outlet portion 48 is perpendicular to the drawing moving 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 powder cavity 20 of the washing machine; 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 outlet portion 48 is smaller than the width of the main body of the laundry powder chamber 20 to increase the pressure of the outlet water flow.

In this embodiment, the washing powder cavity 20 includes a water inlet portion 46, a connection portion 47 and a water outlet portion 48 sequentially arranged from front to back, and the top of the water inlet portion 46 is provided with an injection port 2; the connection part 47 extends along the pulling direction of the detergent box drawer 200, the front end of the connection part 47 is communicated with the rear side of the water inlet part 46, the rear end of the connection part 47 is communicated with the left side of the water outlet part 48, and the radial width of the connection part 47 is gradually narrowed from front to back.

In this embodiment, the bottom wall of the powder cavity 20 is an inclined surface inclined from the inlet to the outlet to guide the inflow water in the powder cavity 20 to converge and flow toward the outlet 42; preferably, the bottom wall of the outlet chamber 45 is sequentially divided into an inclined portion, a horizontal portion and a vertical portion from the side opposite to the side communicating with the body of the laundry powder chamber 20, the inclined portion is an inclined surface gradually inclined downward toward the horizontal portion, the bottommost portion of the inclined portion is connected with the horizontal portion extending horizontally, the vertical portion extends along the vertical surface, the lower end of the vertical portion is connected with the horizontal portion, and the upper end of the vertical portion is hermetically connected with the housing of the detergent box 200.

Example eight

As shown in fig. 1 to 9, the present embodiment discloses an automatic dispensing device, which includes a detergent box 200, wherein the detergent box 200 is provided with at least one chamber for containing detergent; the top of the chamber 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, the convex rib 50 is provided with at least one horizontal scale mark, and each horizontal scale mark is respectively arranged in parallel and level with the liquid level of the detergent with corresponding amount in the chamber in a one-to-one correspondence manner.

In this embodiment, the chamber of the detergent box 200 is provided with a plurality of horizontal scale lines, and each horizontal scale line is respectively arranged in parallel with the liquid level of the detergent with different dosage, so as to respectively prompt the user to add the detergent with corresponding dosage into the chamber.

The convex rib protruding downwards is arranged at the cavity liquid injection port of the detergent box, so that the scale marks are arranged on the convex rib to correspondingly prompt a user to inject the corresponding height of the maximum detergent, and the phenomenon that the user injects too large detergent into the cavity to generate overflow is avoided.

In this embodiment, the pouring outlet 3 is a horizontally disposed square opening, and the rib 50 is disposed at the middle of the rear side of the square opening, so that the user can visually observe the scale lines of the rib after withdrawing the detergent box.

In this embodiment, the protruding rib 50 extends along the inclined plane that inclines forward gradually from top to bottom, and the scale mark is provided at the front side of the protruding rib 50, so that the front side of the protruding rib 50 is provided obliquely upward correspondingly, and the user can observe the scale mark conveniently.

Preferably, in this embodiment, the lower side edge of the protruding rib 50 extends along a horizontal line, and the bottom edge of the horizontally arranged protruding rib 50 forms a horizontal scale line to remind the user to stop injecting the detergent when the detergent level is flush with the lower side edge of the protruding rib during the injection of the detergent. It is further preferred that the bottom edge of rib 50 define a horizontal scale that is level 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 tops of the detergent cavity 8 and the softener cavity 21 are respectively provided with a corresponding liquid injection port 3, and one side of each of the two liquid injection ports 3 is respectively provided with a protruding rib 50 protruding downwards, so that the maximum liquid storage height of the detergent cavity or the softener cavity is prompted by using a horizontal scale line arranged on the protruding rib.

In this embodiment, the liquid inlet 3 is provided with a cover plate 7 correspondingly covered, and one side of the cover plate 7 is hinged to the detergent box 200, so that the cover plate 7 can be installed on the detergent box 200 to be opened and closed by being turned upwards. Preferably, the rear side of the cover plate 7 is hinged to the rear side of the square pouring outlet 3, so that the cover plate 7 can be opened and closed by being turned around the rear side of the cover plate 7 from front to rear.

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

In this embodiment, a circle of flow guiding surface 51 is disposed on the top wall of the detergent box at the periphery of the liquid injection port 3, and the flow guiding surface 51 is a tapered surface gradually inclined downwards from the periphery to the inner periphery to guide the added detergent to flow into the chamber from the injection port.

In this embodiment, the slope contained angle between water conservancy diversion face 51 and the horizontal plane is less than the slope contained angle between fin 50 and the horizontal plane to further increase the inclination of fin, the observation of the scale mark established to the fin of the convenience of customers of maximize.

Example nine

As shown in fig. 1 to 11, in the present embodiment, there is disclosed an automatic dispensing device including a detergent box 200 installed in a water box 100, the detergent box 200 having at least one chamber for receiving detergent therein; the water inlet pipe 49 of the washing machine is communicated with the spraying port 58 or the washing powder inlet 76 arranged on the water box 100, the water inlet pipe 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 that the washing agent stored in the chamber is pumped into the water inlet flow and flows into the water box from the spraying port 58 along with the water inlet flow. Preferably, the outlet of the venturi tube 54 is communicated with the mixing chamber 91, so that the extracted detergent and the inlet water are mixed in the mixing chamber 91, and then communicated with the spray inlet channel 57 through the outlet of the mixing chamber 91, and then discharged through the spray port 58 provided at the end of the spray inlet channel 57.

In this embodiment, the detergent box 200 is provided with a detergent cavity 8 and a softener cavity 21 for storing softener of the detergent box respectively, the detergent cavity outlet 33, the softener cavity outlet 33, and the water inlet pipeline 49 are respectively communicated with three inlets of the reversing valve 52 in a one-to-one correspondence manner, 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 inlet water to the inlet water flow.

In this embodiment, the small end of the venturi tube 54 is connected to the water inlet pipe 49, the large end is connected to the spray port 58 through the spray water inlet channel 57, and the gradually changing part of the bore diameter of the venturi tube 54 is provided with the negative pressure hole 53. In this embodiment, the inlet pipe 49 includes a cold water inlet pipe 63 and a hot water inlet pipe 62 for feeding a temperature-controlled inlet water stream into the automatic dispensing device.

In this embodiment, the suction flow channel 64 is provided with a flow sensor 61 for detecting the amount of the detergent flowing through; preferably, a flow sensor 61 is provided at the connection end of the suction flow passage 64 and the venturi tube 54 to check the flow rate of the water flowing out of the suction flow passage, thereby indirectly acquiring the amount of the detergent flowing in.

In this embodiment, two ends of the washing powder water injection runner 77 are respectively communicated with the water inlet pipeline 49 and the washing powder water inlet 76; the detergent water inlet 76 is arranged corresponding to the injection port 2, so that after the detergent box 200 is correspondingly pushed into the water box 100, the detergent water inlet 76 is positioned vertically above the injection port 2, the washing machine inlet water flows into the detergent cavity 20 through the detergent water injection flow channel 77, the detergent water inlet 76 and the injection port 2, and the detergent thrown into the detergent cavity 20 is flushed 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 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 a fusion process, a flow passage structure for water inflow and sealing is formed between the top cover plate 55 and the cover plate 56, a part of the flow passage structure forms a spraying water inflow 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 end parts of the spraying water inflow 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.

Example ten

As shown in fig. 1 to 11, in the present embodiment, an automatic dispensing device is disclosed, which includes a detergent box 200 installed inside a water box 100, the detergent box 200 is provided with at least one chamber for holding detergent, and a liquid outlet 33 of the chamber is communicated with a negative pressure suction structure through a suction flow channel 64; the suction flow channel 64 is spirally arranged on 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 convolution on the water box to prolong the length of suction runner as far as possible, and then enlarge the volume of suction runner, make the detergent amount of automatic input device single suction in the suction runner increase, and then realized having improved automatic input device single input volume, improved the purpose of detergent input efficiency.

In this embodiment, the pumping channel 64 is connected to the chamber outlet 33 or the washing machine inlet 49 via a diverter valve to controllably introduce detergent or water into the pumping 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 horizontally laid correspondingly is disposed on the lower side of the top cover plate 55, the top cover plate 55 and the cover plate 56 are welded together by 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 through the cover plate 56 and is communicated with the outlet of the reversing valve 52, and the water outlet end penetrates through the cover plate 56 and is communicated with the negative pressure suction structure.

In this embodiment, the suction flow channel 64 extends from the water inlet end located at the rear side of the water box 100 to the front side of the water box 100 to at least the middle part of the water box 100, and then returns to the water outlet end located at the rear side of the water box 100; at least one folding part 65 which is folded and coiled is arranged in the middle of the suction flow channel 64; preferably, a plurality of parallel folds 65 are provided at the middle of the suction flow path 64, and the folds 65 extend in a direction perpendicular to the drawing direction of the detergent box 200.

In this 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 negative pressure suction structure, so as to detect a water inflow flowing out of the suction flow channel, and indirectly obtain an amount of the detergent 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 detergent cavity liquid outlet 33, the softener cavity liquid outlet 33 and the washing machine water inlet pipeline 49 in a one-to-one correspondence way, 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 detergent, softener or water into the suction flow channel.

EXAMPLE eleven

As shown in fig. 1 to 11, in the present embodiment, an automatic dispensing device is described, which includes a spray water inlet channel 57 for flowing pumped detergent into a water box 100, a vent hole 66 communicated with the outside is disposed on the spray water inlet channel 57, and a control valve 67 is disposed at the vent hole 66, so that when water flows through the spray water inlet channel 57, a valve plug 68 of the control valve 67 is pressed by the water flow to correspondingly block the vent hole 66; when no water flows through the spray inlet channel 57, the valve plug 68 of the control valve 67 automatically resets to open the vent hole 66, so that the residual water in the spray inlet channel 57 automatically flows out under the action of gravity.

Through set up the bleeder vent of installing the control valve on spraying the inlet channel to make automatic throwing device stop work after the automatic bleeder vent of opening of control valve, the remaining deposit water in the messenger sprays the inlet channel and is sprayed the inlet channel internal and external differential pressure effect and flow from spraying the mouth automatically, has avoided the user to open the emergence of the circumstances such as washing machine door body back and still has dripping, and then has prevented in the water route that residual water from breeding the bacterium and in the water route under extremely low temperature the problem that the water route produced the crack after freezing.

In this embodiment, the control valve 67 includes the valve plug 68 installed inside the air vent, the valve plug 68 can move along the axial direction of the opening to the outside under the action of water pressure so as to block the air vent 66 correspondingly, and a return spring 71 is arranged between the valve plug 68 and the inner wall of the spraying water inlet channel 57 so as to apply an elastic force for driving the valve plug 68 to open the opening.

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

As shown in fig. 18 and 19, in the present 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 flange 89 bent horizontally outward at the second end of the mounting portion 69, and the other end is in limit contact with the inner wall of the spray inlet channel 24. Preferably, the upper end of the return spring 71 is in limit contact with the lower side of a flange 89 formed 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 an inward flange 90 horizontally bent inward of the air vent 66, so that the valve plug 68 is mounted inside the air vent 66 under the supporting action of the return spring 71 without being separated. Preferably, the outer diameter of the flange 89 protruding outwards at the upper end of the mounting portion 69 is larger than the inner diameter of the vent hole 66, so as to further prevent the valve plug 68 from being disengaged from the vent hole 66.

In this embodiment, the spray water inlet channel 57 is provided with a sleeve projecting outwards, the projecting end of the sleeve is provided with a vent hole 66 arranged coaxially, the other end of the sleeve is communicated with the spray water inlet channel 57, and a valve plug 68 of the control valve 67 is arranged in the sleeve along the axial direction; preferably, the second end of the mounting portion 69 is attached to the inner wall of the sleeve, the radial width of the stopping rib provided at the first end of the mounting portion 69 is greater than the diameter of the air hole 66, and the radial width of the sealing ring 70 is greater than the diameter of the air hole 66.

In this embodiment, the bottom wall of the spray water inlet channel 57 is provided with a support rib extending vertically upward, and the upper end of the support rib is in supporting contact with the valve plug 68; preferably, the support ribs and the two side walls of the spraying water inlet channel 57 are separated by a certain gap so as to allow water to flow through; it is further preferred that the support rib is in corresponding supporting contact with the 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 suction structure, the tail 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 hole 66 is arranged on the spray water inlet channel 57 close to 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 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 coating process, a flow channel structure for water inflow flowing and sealing is formed between the top cover plate 55 and the cover plate 56, a part of the flow channel structure forms a spraying water inflow flow channel 57, the water inflow end of the spraying water inflow flow channel 57 penetrates through the cover plate 56 to be communicated with a negative pressure suction structure, and the tail end of the spraying water inflow flow channel is provided with a spraying port 58 penetrating through the cover plate 56 to be communicated with the lower part of the water box 100.

In this embodiment, the cover plate 56 is provided with an air hole 66 for communicating the spray water inlet channel 57 with the interior of the water box 100, and the air hole 66 is provided with a vertically arranged control valve 67.

In this embodiment, the suction channel 64 is communicated with the spray water inlet channel 57 through a negative pressure suction structure, two spray ports 58 for injecting water into the water box are arranged at the tail end of the spray water inlet channel 57, and a water homogenizing rib 59 is arranged between the two spray ports 58 to make the water inlet flow uniformly flow to the two spray ports 58.

In this embodiment, the tail end of the spraying water inlet channel 57 is provided with two branch channels which are separated by a fork, and the two branch channels are respectively and correspondingly provided with a spraying port 58; the tail end of the spraying water inlet channel 57 is provided with a water homogenizing chamber 60 at the forked part, and a water homogenizing rib 59 vertical to the water flow direction is arranged in the water homogenizing chamber 60 so as to guide the water flow of the inlet water to uniformly flow to the branch channels at the two sides; preferably, the water homogenizing rib 59 is arranged in the middle of the water homogenizing chamber 60, and a certain gap is respectively formed between two sides of the water homogenizing rib 59 and two side walls of the water homogenizing chamber 60.

In this embodiment, the spraying port 58 is disposed at the front of the water box 100, so that the spraying inlet water directly flows to the water outlet disposed at the front side of the bottom of the water box 100 and flows into the washing barrel of the washing machine.

Example twelve

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

By the mode, the flow sensor can realize the purpose of accurately and quantitatively detecting the adding amount of the detergent only by detecting the inlet water; meanwhile, the problems that the detection precision of the flow sensor is insufficient and the like due to the fact that the viscosity of the detergent is different from that of the water inflow are effectively avoided.

In this embodiment, the suction flow passage is alternately communicated with the detergent storage chamber and the water inlet pipe at intervals of a certain period of time to alternately suck the detergent and the water inlet; and detecting the water inflow flowing out of the suction flow channel in a time period when the detergent storage chamber is communicated with the suction flow channel, wherein the detected value is the amount of the detergent pumped correspondingly in the process.

In this embodiment, the interval time period needs to be shorter than the time for all the detergent flowing into the suction flow channel; preferably, the communication time of the suction flow passage with the detergent storage chamber and the water inlet line is different, and the communication time of the suction flow passage with the detergent storage chamber is less 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 provided at the inlet of the suction flow channel is determined such that when the set time period t1 is reached, it is automatically determined that all the detergent in the suction flow channel is discharged, and the switching is correspondingly switched to be communicated with the inlet water; and when the set time period t2 is reached, the suction flow channel is automatically judged to be completely filled with the inlet water, and is correspondingly switched to be communicated with the detergent.

The method can also be adopted to automatically judge the medium in the suction flow channel so as to determine the switching time node; for example: in the process that the suction flow channel is communicated with the detergent storage chamber, if the detection accuracy of the flow sensor is changed, the suction flow channel is judged to be completely filled with the detergent, the suction flow channel is switched to be communicated with the water inlet pipeline, and the single-time put-in amount of the detergent is the maximum volume of the suction flow channel.

Or a quantitative mode is adopted 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 adjusted to enable the suction flow channel to be communicated with the water inlet pipeline, after the water inlet time reaches the set time T, all the detergent in the flow channel is washed clean, the reversing valve is adjusted again to enable the suction flow channel to be communicated with the detergent storage chamber, and the detergent extracting procedure is executed again.

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

s1, starting to work by an automatic putting device;

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

s4, detecting the water inflow flowing out of the suction runner, and judging whether the detection value reaches a set input amount or not; if the step S6 is executed, if the step S5 is not executed;

and S8, stopping the automatic putting device.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A control method of an automatic putting device is characterized in that in the process of pumping the detergent, the detergent and the water are pumped into the pumping flow channel at intervals so as to detect the water inflow flowing out of the pumping flow channel and accurately obtain the pumped detergent amount; in the process that the suction flow channel is communicated with the detergent storage chamber, if the detection accuracy of the flow sensor is changed, the suction flow channel is judged to be completely filled with the detergent, the suction flow channel is switched to be communicated with the water inlet pipeline, and the single-time put-in amount of the detergent is the maximum volume of the suction flow channel; the suction flow channel is alternately communicated with the detergent storage chamber and the water inlet pipeline at intervals of a certain time period so as to alternately suck the detergent and the water inlet; and detecting the water inflow flowing out of the suction flow channel in a time period when the detergent storage chamber is communicated with the suction flow channel, wherein the detected value is the amount of the detergent pumped correspondingly in the process.

2. The method as claimed in claim 1, wherein the interval period is less than the time for pumping the whole detergent into the flow path.

3. The method as claimed in claim 2, wherein the time for the suction channel to communicate with the detergent storage chamber and the water inlet line is different, and the time for the suction channel to communicate with the detergent storage chamber is less than the ratio of the volume of the suction channel to the flow rate of the detergent.

4. The control method for an automatic dispensing device according to any one of claims 1 to 3, characterized by comprising the following steps,

s1, starting working of an automatic releasing device;

and S8, stopping the automatic feeding device.

5. An automatic dispensing device using the control method of any one of claims 1 to 4, comprising a detergent box installed in the water box, the detergent box being provided with at least one chamber for containing detergent; the washing machine is characterized in that a water inlet pipeline of the washing machine is communicated with a spraying port arranged on a water box, a Venturi tube is arranged on the water inlet pipeline, a negative pressure hole is formed in the Venturi tube and is communicated with a liquid outlet of a cavity, and therefore detergent stored in the cavity is pumped into a water inlet flow and flows into the water box from the spraying port along with the water inlet flow;

the detergent box is provided with a detergent cavity and a softener cavity for respectively storing detergent and softener, a detergent cavity liquid outlet, a softener cavity liquid outlet and a water inlet pipe are respectively communicated with the inlet of the reversing valve in a one-to-one correspondence manner, and the outlet of the reversing valve is communicated with the negative pressure hole through a suction flow passage so as to correspondingly convey the detergent, the softener or inlet water to the water inlet flow;

a flow sensor for detecting the amount of detergent flowing through the suction flow channel is arranged on the suction flow channel;

the flow sensor is arranged at the connecting end of the suction flow channel and the Venturi tube so as to check the water flow flowing out of the suction flow channel and further indirectly acquire the amount of the detergent flowing in.

6. An automatic dispensing device according to claim 5, wherein the small mouth end of the venturi tube is connected to the water inlet pipe, the large mouth end is connected to the spray port through the spray water inlet channel, and the gradually changing part of the bore diameter of the venturi tube is provided with a negative pressure hole.

7. An automatic dispensing device according to any one of claims 5 to 6, wherein the top of the water box is formed by a top cover plate, a cover plate is disposed on the lower side of the top cover plate and horizontally laid correspondingly, the top cover plate and the cover plate are welded together by a fusion process, a flow channel structure for water inflow and sealing is formed between the top cover plate and the cover plate, a part of the flow channel structure forms a spray water inflow flow channel, a part of the flow channel structure forms a suction flow channel, and the end portions of the spray water inflow flow channel and the suction flow channel respectively penetrate through the cover plate to form a joint portion.