CN112921585A

CN112921585A - Method for automatically putting detergent and pumping mechanism

Info

Publication number: CN112921585A
Application number: CN201911243158.0A
Authority: CN
Inventors: 牟平; 徐锦锋; 张宝鸽; 徐世军
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Foshan Viomi Electrical Technology Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-06-08
Anticipated expiration: 2039-12-06
Also published as: CN112921585B

Abstract

The invention provides a method for automatically putting detergent, which comprises the following steps: acquiring a target washing program, and configuring a target detergent according to the target washing program; configuring a motor to perform a rotating action according to the target detergent, wherein the motor drives a rotating device to move so that the rotating device is communicated with a pumping cavity of the target detergent; automatically putting detergent, and configuring a motor to execute rotation action so that the target detergent enters a liquid guide cavity corresponding to the target washing liquid; the motor stops rotating and the washing machine operates the washing operation. The invention also provides a pumping mechanism applying the automatic detergent feeding method. According to the invention, accurate selection of different cavities is realized by configuring the number of rotation turns of the motor. In addition, the operation in different directions is executed by one motor to realize the automatic cavity selection and the detergent drawing or placing operation.

Description

Method for automatically putting detergent and pumping mechanism

Technical Field

The invention relates to the technical field of household appliances, in particular to a method for automatically putting detergent and a pumping and releasing mechanism.

Background

In the prior art, when a washing machine puts in detergent, the washing liquid box needs to be pulled and pushed manually before washing, and then the washing powder, the washing liquid or the softener is put in the corresponding position of the washing liquid box, so that the washing liquid box is inconvenient to draw if other articles are in the hands of a user.

In addition, a washing machine for automatically putting detergent is also available at present, but the washing machine is mainly suitable for automatically putting detergent, and when a user needs to put multiple kinds of detergent, the washing machine cannot realize automatic putting. Therefore, the method and the device for automatically putting the washing machine in the existing washing machine need to be improved, the structural design and the method thereof are optimized, and a novel method for automatically putting the detergent and a pumping and releasing mechanism are designed.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a method for automatically putting detergent, which comprises the following steps: acquiring a target washing program, and configuring a target detergent by the main control panel according to the target washing program; according to the target detergent, the main control board is provided with a motor to perform rotation, and the motor drives a rotating device to move so as to switch the detergent, so that the piston is communicated with a pumping cavity of the target detergent under the action of the rotating device; the detergent is automatically put in, and the main control board is provided with a motor to execute rotating action so as to suck the target detergent and enter the liquid guide cavity corresponding to the target detergent.

Preferably, when the motor is configured to execute a rotating action according to the target detergent, the main control board drives the motor to rotate forward, and after the motor rotates for a set number of turns, the first driving assembly drives the valve element rotating shaft to rotate until the blind hole on the movable valve plate is aligned with the third through hole on the fixed valve plate, so that the first through hole is communicated with the target drainage cavity.

Preferably, when the detergent is automatically put in, the main control board drives the motor to rotate reversely, so that the pressure in the pumping cavity of the target detergent is reduced, and the target detergent enters the pumping cavity of the target; the motor continues to rotate in the reverse direction, so that the detergent in the drawing and releasing cavity of the target enters the liquid guide cavity corresponding to the target laundry detergent.

Preferably, before the step of automatically putting the detergent, the method further comprises the following steps: the main control panel acquires weight information of the laundry to determine a laundry amount and/or a laundry time.

Preferably, before the step of automatically putting the detergent, the method further comprises the steps that the main control board detects the detergent allowance in the drainage cavity to control whether to operate the automatic putting, and if the detergent allowance is not enough, the automatic putting is stopped and a prompt is given to a user.

Preferably, when the step of automatically putting the detergent further comprises the steps of obtaining the flow coefficient of the fluid flowing into the washing machine from the drainage cavity by the main control panel, comparing the flow coefficient of the fluid with a target flow coefficient, and stopping automatic putting and giving a prompt to a user if the flow coefficient of the fluid is smaller than the target flow coefficient.

Preferably, when the motor performs a rotational action; the main control board controls the electromagnetic induction device to send out signals to prevent the motor from rotating, so that the piston is communicated with the pumping cavity of the target detergent.

Preferably, when the motor performs a rotational action; the magnetic induction elements on the valve core rotating shaft rotate at the same angular speed; the magnetic induction element on the valve core rotating shaft and the electronic induction element on the valve core assembly shell are mutually induced and send a feedback signal through the signal wire harness, and the main control board prevents the motor from rotating based on the feedback signal so as to enable the piston to be communicated with the pumping cavity of the target detergent.

A second object of the present invention is to provide a pumping mechanism for automatically dispensing a liquid detergent, comprising: the automatic detergent feeding device comprises a main control board and a pumping and discharging mechanism body, wherein the main control board is configured to execute a computer program of the automatic detergent feeding method, and the pumping and discharging mechanism body comprises a piston, a rotating device and a motor; wherein the content of the first and second substances,

one end of the rotating device is connected with the plurality of sealed pumping cavities, and the other end of the rotating device is connected with the piston; the motor drives the rotating device to rotate until the piston is selectively communicated with the pumping cavity of the target, the motor drives the piston to axially reciprocate in the rotating device, the pressure in the pumping cavity of the target is changed, so that the detergent in the detergent storage cavity communicated with the pumping cavity of the target in a one-way mode flows into the pumping cavity of the target or the detergent in the pumping cavity of the target flows out from the discharge port, and pumping or discharging of the detergent is achieved.

Preferably, the rotating device comprises a valve core assembly, the valve core assembly comprises a movable valve plate connected with the valve core rotating shaft and a fixed valve plate attached to the other side, opposite to the valve core rotating shaft, of the movable valve plate, the valve core rotating shaft is axially provided with a first through hole, and one end of the piston is movably arranged in the first through hole; the movable valve plate is provided with a second through hole communicated with the first through hole and a blind hole communicated with the second through hole, the fixed valve plate is provided with a plurality of third through holes, and the third through holes are respectively communicated with the pumping cavity; wherein the content of the first and second substances,

the valve core rotating shaft rotates to drive the movable valve plate to rotate relative to the fixed valve plate, and the movable valve plate rotates until the blind hole is communicated with a third through hole communicated with a target pumping and discharging cavity, so that the first through hole is communicated with the target pumping and discharging cavity.

Preferably, the valve core rotating shaft comprises a magnetic induction element, the valve core assembly shell comprises a printed circuit board, the printed circuit board comprises electric induction elements, and the distribution of the electric induction elements on the printed circuit board is consistent with that of the third through holes on the fixed valve plate; the valve core rotating shaft rotates to an angle, so that the magnetic induction element and the electronic induction element on the printed circuit board are mutually induced, and a signal wire harness sends a feedback signal to control the first through hole to be communicated with the target drainage cavity.

Preferably, an end cap is arranged on the valve core rotating shaft, and the magnetic induction element is fixed on the valve core rotating shaft through the end cap; a notch is formed in one side, close to the valve core assembly shell, of the end cap; the valve core rotating shaft rotates, the magnetic induction element rotates relative to the printed circuit board, and the magnetic induction element and an electric induction element on the printed circuit board are mutually induced through a notch on the end cap.

Compared with the prior art, the invention has the beneficial effects that:

(1) the method for automatically feeding the detergent can realize the automatic feeding of two, three or even more liquid detergents. The two operations of selecting a target pumping cavity and pumping can be completed through forward rotation or reverse rotation of one motor.

(2) In a preferred scheme, the main control panel calculates the weight of the detergent to be put according to the washing program and the weight of clothes, so that the waste of the detergent caused by inaccurate control of the manually-put dosage is avoided.

(3) In a preferred embodiment, different detergents are automatically dosed at different washing stages depending on the nature of the application.

(4) In a preferred scheme, the main control board detects the residual quantity of the detergent in the liquid guide cavity to control whether the automatic feeding is operated or not, so that the problem that the detergent is insufficient in the washing process to cause incomplete washing of clothes is prevented.

The foregoing description is only an overview of the technical solutions of the present invention, and some embodiments are described in detail below in order to make the technical solutions of the present invention more clearly understood and to implement the technical solutions according to the content of the description. Specific embodiments of the present invention are given in detail by the following examples.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic perspective view of a drawing and releasing mechanism body according to the present invention;

FIG. 2 is a first diagram illustrating an exploded structure of the pumping mechanism body;

FIG. 3 is a second schematic diagram of the explosion structure of the pumping mechanism body according to the present invention;

FIG. 4 is a schematic structural diagram of the ratchet mechanism of the present invention;

FIG. 5 is a first cross-sectional view of the pumping mechanism body of the present invention;

FIG. 6 is a second cross-sectional view of the pumping mechanism body of the present invention;

FIG. 7 is a schematic perspective view of the feeding box of the present invention;

FIG. 8 is a schematic diagram of an exploded structure of the charging box of the present invention;

FIG. 9 is a schematic perspective view of the housing of the feeding box of the present invention;

FIG. 10 is a schematic perspective view of the pumping mechanism body according to another embodiment of the present invention;

FIG. 11 is a schematic flow chart of a method for automatically dispensing detergent according to the present invention;

FIG. 12 is a schematic flow chart of another method for automatically dispensing detergent according to the present invention;

FIG. 13 is a schematic flow chart illustrating a method for determining a remaining amount of detergent before automatically dispensing detergent according to the present invention;

fig. 14 is a flowchart illustrating another method for determining a remaining amount of detergent when automatically dispensing detergent according to the present invention.

In the figure:

100. a pumping mechanism body;

11. a piston link assembly; 111. a piston connecting rod; 1111. a long hole; 112. a piston head; 113. a piston rubber ring;

12. a valve core assembly; 121. a movable valve plate; 1211. a second through hole; 1212. blind holes; 1213. a first groove; 122. a fixed valve plate; 1221. a third through hole; 1222. a second groove; 123. a connecting member; 1231. A first bump; 124. a fixing member; 1241. a second bump; 1242. a third groove; 1243. a suction port; 1244. a discharge port; 125. fixing a sleeve; 1251. a fastener; 126. a seal ring;

13. a spool shaft; 131. a first through hole;

14. drawing and releasing the cavity; 141. a first drainage cavity; 142. a second drainage cavity; 143. a third drainage cavity;

15. a first drive assembly; 151. a motor; 152. a motor shaft; 153. a driving gear; 1531. a second pawl; 154. a driven gear;

16. a second drive assembly; 161. a nose bar; 162. a worm; 163. a worm gear; 1631. a first pawl;

17. a ratchet wheel; 171. a first ratchet wheel; 172. a second ratchet wheel;

18. magnetic induction element, 181, end cap;

19. a printed circuit board 191, an electrical sensing element 192, a signal harness;

200. a feeding box body;

21. a housing; 211. a cavity.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Example one

As shown in fig. 11, a method for automatically dispensing detergent comprises the following steps:

and S101, acquiring a target washing program and configuring a target detergent according to the target washing program. The acquisition of the target washing program can be user input, or the washing machine can automatically select and configure the detergent as washing liquid, disinfectant, softener, flavoring agent and other washing products for washing clothes according to the sensed clothes type and weight. For example, the user selects general washing, and the washing machine selects laundry detergent as a target detergent; selecting disinfection and washing by a user, and selecting disinfectant and laundry detergent as target detergents by a washing machine; the user selects the comprehensive washing, and the washing machine selects disinfectant, laundry detergent, softener and the like as target detergents. The washing program/detergent combination can be set according to the default program of the main control board (the default program of the main control board is the detergent combination corresponding to the common washing type on the market at present, and the detergent combination is loaded into the main control board as data); in addition, the setting can be customized according to the requirements of users. Specifically, the method for automatically putting the detergent is executed through a chip in a main control panel. The chip acquires or analyzes data input by a user; in addition, the chip analyzes the required detergent according to the clothes put in the washing machine and the data stored in the chip. And the chip executes corresponding instructions according to the analyzed data.

And S102, configuring a motor to perform rotation action by the main control board according to the target detergent, and driving a rotating device to move by the motor so as to switch the detergent, so that the piston is communicated with a drainage cavity of the target detergent under the action of the rotating device. In one embodiment, the rotating means is the first through hole 131 of the spool spindle 13. In one embodiment, the motor rotates forward to drive the first driving assembly 15 to drive the valve plug rotating shaft 13 to drive the movable valve plate 121 to rotate until the blind hole 1212 of the movable valve plate 121 is aligned with the third through hole 1221 of the fixed valve plate 122 communicated with the target pumping chamber 14 in one-way communication with the detergent storage chamber for storing the laundry detergent.

And respectively calculating according to the selected target detergent when the number of rotation turns of the motor is configured. The actual number of rotations of the motor is related to how many rotations of the blind hole 1212 of the movable valve plate 121 are required to communicate with the third through hole 1221 of the fixed valve plate 122. As shown in fig. 2-3, the stationary plate 122 is provided with three third through holes 1221, wherein a connecting line of two of the third through holes 1221 coincides with a diameter of the stationary plate 122, and the other third through hole is located at one side of the connecting line; if the blind hole 1212 of the movable valve plate 121 is initially located on the other side of the connection line of the two third through holes 1221 of the fixed valve plate 122; the movable valve plate 121 rotates 90 degrees, and the blind hole 1212 is aligned with a certain third through hole 1221; the movable valve plate rotates 90 degrees again, and the blind hole 1212 is aligned with the next third through hole 1221; the movable valve plate rotates 90 degrees again, and the blind hole 1212 is aligned with the next third through hole 1221; the movable plate rotates 90 ° again, and the fixed plate 122 returns to the initial position. That is, the blind hole 1212 of the movable valve plate can be aligned with one third through hole 1221 every 1/4 times of rotation from the initial position. The main control board can configure the number of rotation turns of the motor according to the rotation relation between the movable valve plate and the fixed valve plate.

S103: the detergent is automatically put in, and the main control board is provided with a motor to execute rotating action so as to suck the target detergent and enter the liquid guide cavity corresponding to the target detergent. In one embodiment, the motor is commanded to rotate in the opposite direction, reducing the pressure in the target detergent draw chamber 14, causing the target detergent to enter the target draw chamber 14; the motor continues to rotate in the opposite direction, so that the detergent in the target drainage cavity 14 enters the liquid guide cavity corresponding to the laundry detergent;

specifically, after the target detergent is selected in S103, the motor is commanded to rotate reversely, the second driving assembly 16 is driven to drive the piston link assembly 11 to move in the first through hole 131 in a single-pass manner, the pressure in the target pumping and releasing cavity 14 is reduced until the difference between the pressure in the detergent storage cavity and the pressure in the target pumping and releasing cavity 14 is higher than the pressure difference between two sides of the check valve of the one-way communication target pumping and releasing cavity 14 and the detergent storage cavity, and the laundry detergent in the detergent storage cavity for storing the laundry detergent enters the target pumping and releasing cavity 14. The motor continuously rotates reversely, the second driving assembly 16 is driven to drive the piston connecting rod assembly 11 to move in the other direction in the first through hole 131 in a return stroke mode, the pressure in the target pumping cavity 14 is increased until the pressure in the target pumping cavity 14 is higher than the pressure in the liquid guide cavity by a difference value, and the pressure difference value between two sides of a check valve arranged on one side of the liquid detergent cavity corresponding to the target pumping cavity 14 is reached, so that the laundry detergent in the target pumping cavity 14 enters the liquid guide cavity corresponding to the laundry detergent.

It should be understood that the forward rotation of the motor in S102 and the reverse rotation of the motor in S103 are only one example; in another embodiment, the motor rotates reversely in S102 and rotates forwards in S103.

In one embodiment, before the step of automatically putting the detergent, the method further comprises the following steps: the main control panel acquires weight information of the laundry to determine a laundry amount and/or a laundry time. This step is any step prior to the automatic dosing of the detergent. Specifically, the clothes to be washed are weighed, the weight of the clothes is transmitted to the main control board through the sensor, and after the main control board processes data of the information, the putting amount and/or the putting time of the detergent are/is determined. The main control panel can determine the input amount and input time of the washing by combining the current clothes material information, detergent properties, water hardness and the like. For example, when the target detergent required by the user is laundry detergent and softener, the laundry detergent is quantitatively put in the washing process through calculation of the main control board; the softener is dosed after the end of the washing process or after rinsing.

In one embodiment, the user selects the soft washing, the user inputs the soft washing, and the washing machine respectively calculates the number of turns of the motor required by the third through holes corresponding to the laundry detergent and the softener; the motor is driven to rotate forwards, and the blind hole 1212 on the motor-driven movable valve plate 121 aligns with the third through hole 1221 on the fixed valve plate and communicated with the laundry detergent drainage cavity. The driving motor rotates reversely, the laundry detergent with the set amount is pumped into the main control panel, and the washing machine starts washing clothes. When the washing machine enters a softening stage, the softener feeding process is executed, the motor is driven to rotate forwards again, the blind hole 1212 on the movable valve plate 121 is driven by the motor to align with the third through hole 1221 on the fixed valve plate, which is communicated with the softener pumping cavity, and softener with a set amount is pumped out from the main control plate to soften clothes.

In one embodiment, a step of detecting a remaining amount is further included after S103 before the user automatically puts in the detergent. The main control board detects the detergent allowance in the drainage cavity to control whether to operate S104. If the detergent residual quantity is sufficient, the step S104 is entered, and if the detergent residual quantity is insufficient, the automatic feeding is stopped, and an alarm is given to the user to prompt the user to add the detergent. In another embodiment, when the detergent is not enough, the feeding box can automatically pop up to remind the user to add the detergent.

When the dosage of the detergent in the liquid guide cavity reaches the standard dosage of the target washing program, the motor stops rotating, and the washing machine operates the washing operation.

In one embodiment, manual addition of detergent is also permitted, since different users have their own special needs when washing the laundry. The user can increase the dosage of any detergent according to the self demand and then carry out the washing step.

In one embodiment, when the detergent is automatically dosed, the main control panel acquires the flow coefficient of the fluid flowing into the washing machine from the drainage cavity, compares the flow coefficient of the fluid with a target flow coefficient, and stops automatic dosing and gives a prompt to a user if the flow coefficient of the fluid is smaller than the target flow coefficient. Specifically, the flow coefficient set value may be obtained by using various algorithms, such as the following method: the water pressure of inlet water is controlled, the whole loop formed by the inlet valve, the inlet pipe and the automatic feeding device is unchanged, aiming at the state when a specific detergent (or softener or additive) is normally fed, the liquid feeding speed of a plurality of time intervals is measured by utilizing a flow sensor, a feeding speed range is obtained for a plurality of detergents (or softeners or additives) for the existing washing machine, and the feeding speed range is set in the main control panel as a reference. The main control board obtains various parameters of the fluid flowing into the washing machine through the sensor, and calculates the flow coefficient of the corresponding fluid by using an algorithm.

In one embodiment, in S103, when the user automatically puts in the detergent, and when the user automatically puts in the detergent in a specific time period, the flow coefficient of the fluid flowing from the drainage cavity into the washing machine is detected, the real-time detected flow coefficient of the fluid is compared with the target flow coefficient, and if the real-time detected value is smaller than the set value and the detergent in the drainage cavity is insufficient, the automatic putting is stopped and a prompt is given to the user.

In one embodiment, in S102, when the target detergents are two or more detergents and the adding time of different detergents is the same, the number of rotations of the motor is calculated according to the detergent composition, the first driving assembly 15 drives the valve plug rotating shaft 13 to rotate, and the first through holes 131 are connected to the drawing and discharging cavities 14 of different target detergents in sequence. When the fixed valve plate 122 is provided with three third through holes 1221, the blind hole 1212 is firstly butted with a drainage cavity corresponding to one of the third through holes 1221 set by a user; the motor is driven again, and the blind hole 1212 is butted with a pumping cavity corresponding to another third through hole 1221 set by a user; the blind hole 1212 is aligned with the target third through hole 1221 in sequence.

In one embodiment, in S102, when the target detergent is two or more detergents and the adding time of different detergents is different, the main control board performs data processing to calculate the adding amount and adding time of different detergents. The motor rotates forwards, the first driving assembly 15 drives the valve core rotating shaft 13 to rotate, and the first through hole 131 is connected with the pumping cavity 14 of the target detergent. When the fixed valve plate 122 has three third through holes 1221, the blind hole 1212 first abuts against a pumping cavity corresponding to the first third through hole 1221 set by a user; driving a motor to rotate reversely, and pumping a first target detergent into a first target liquid guide cavity; when the main control board prompts that a second detergent is to be put in, the motor is driven to rotate forwards again, and the blind hole 1212 is butted with a second pumping cavity corresponding to a second third through hole 1221 set by a user; the drive motor is reversed to draw the second target detergent into the target drainage lumen for a set time. In this way, the blind holes 1212 are aligned to the target third through-holes 1221 sequentially at different times.

In an embodiment, the number of the blind holes 1212 is two, and as the movable valve plate 121 rotates, the two blind holes 1212 on the movable valve plate 121 can simultaneously communicate with the two third through holes 1221, and at this time, there are two pumping cavities 14 targeting the pumping cavity 14, such as the first pumping cavity 141 and the second pumping cavity 142. For example, the two blind holes 1212 may have the same size, and the two blind holes 1212 may communicate with the two third through holes 1221 at the same time, or one blind hole communicates with one third through hole 1221, and the other blind hole 1212 is in contact with the surface of the stationary valve plate 122 outside the third through hole 1221. For another example, the plurality of third through holes 1221 formed in the fixed valve plate 121 are respectively arranged on two circular paths with different diameters, the two blind holes 1212 have different lengths, and the two blind holes 1212 can respectively cover one of the third through holes 1221 arranged on the circular paths with different diameters as the movable valve plate 121 rotates. The valve core rotating shaft 13 is driven to rotate, and the two blind holes 1212 can be aligned with the two third through holes 1221 on the fixed valve plate 122 at the same time, that is, the detergent is pumped from the two target pumping cavities at the same time.

A method for automatically putting detergent comprises the following steps.

S201, acquiring a target washing program and configuring a target detergent according to the target washing program. The acquisition of the target washing program can be user input, or the washing machine can automatically select and configure the detergent as washing liquid, disinfectant, softener, flavoring agent and other washing products for washing clothes according to the sensed clothes type and weight. For example, the user selects general washing, and the washing machine selects laundry detergent as a target detergent; selecting disinfection and washing by a user, and selecting disinfectant and laundry detergent as target detergents by a washing machine; the user selects the comprehensive washing, and the washing machine selects disinfectant, laundry detergent, softener and the like as target detergents. The washing program/detergent combination can be set according to the default program of the main control board (the default program of the main control board is the detergent combination corresponding to the common washing type on the market at present, and the detergent combination is loaded into the main control board as data); in addition, the setting can be customized according to the requirements of users.

S202, configuring a motor to execute rotation according to the target detergent. When the motor executes the rotation action; the main control board controls the electromagnetic induction device to send out a signal to prevent the motor from rotating, so that the piston is communicated with the pumping cavity 14 of the target detergent under the action of the rotating device.

Specifically, after the motor rotates forwards, the magnetic induction elements on the valve core rotating shaft rotate at the same angular speed; when the motor rotates to a certain specific angle; the magnetic induction element on the valve core rotating shaft 13 and the electronic induction element on the housing of the valve core assembly 12 (i.e. the connecting member 123) are mutually induced and send a feedback signal through the signal wire harness 192, the main control board prevents the motor from rotating based on the feedback signal, so that the piston is communicated with the pumping and discharging cavity 14 of the target detergent under the action of the rotating device, that is, the target third through hole 1221 on the fixed valve plate 122 is aligned with the blind hole 1212 on the movable valve plate 121, that is, the first through hole 131 is automatically aligned with the pumping and discharging cavity 14 of the target detergent.

In one embodiment, the stationary plate 122 includes three third through holes 1221. The magnetic induction elements 18 on the valve core rotating shaft 13 and the three electric induction elements on the printed circuit board 19 are uniformly distributed on the circumference of the printed circuit board contacting with the valve core rotating shaft 13. After the motor rotates forwards, the magnetic induction elements on the valve core rotating shaft rotate at the same angular speed; after the valve core rotating shaft rotates 90 degrees, the position of a certain electric induction element is reached, at this time, the magnetic induction element on the valve core rotating shaft 13 and the electric induction element on the shell of the valve core assembly 12 (namely, the connecting piece 123) mutually induce, and a feedback signal is sent out through a signal wire harness to prevent the motor from continuing rotating, so that the first through hole 131 and the drawing and discharging cavity 14 of the target detergent are automatically aligned. The valve core rotating shaft rotates 90 degrees again and reaches the position of another electric induction element, at this time, the magnetic induction element on the valve core rotating shaft 13 and the electric induction element on the valve core assembly 12 shell (namely the connecting piece 123) mutually induct, and send a feedback signal through the signal wire harness to prevent the motor from continuing rotating, and the first through hole 131 and the other drawing and releasing cavity 14 of the target detergent are automatically aligned.

It should be understood that the above described embodiment is merely one particular case of the distribution of the electric and magnetic induction elements. In practical operation, it is only necessary to ensure that the number of the electric sensing elements is consistent with the number and the positions of the third through holes 1221 on the fixed valve plate 122. The relative positions of the electric induction element and the magnetic induction element can be set at will.

S203: and automatically putting detergent, and configuring a motor to execute rotation action so that the target detergent enters a liquid guide cavity corresponding to the target washing liquid. In one embodiment, the motor is commanded to rotate in the opposite direction, reducing the pressure in the target detergent draw chamber 14, causing the target detergent to enter the target draw chamber 14; the motor continues to rotate in the opposite direction, so that the detergent in the target drainage cavity 14 enters the liquid guide cavity corresponding to the laundry detergent;

It should be understood that the forward rotation of the motor in S202 and the reverse rotation of the motor in S203 are only one example; in another embodiment, the motor rotates reversely in S202 and rotates forwards in S203.

Example two

As shown in fig. 1 to 3, a pumping mechanism for automatically dispensing a liquid detergent comprises: a main control board and a drainage mechanism body 100, wherein the main control board is configured to execute a computer program of the method for automatically putting detergent according to any one of the above embodiments. The invention provides a pumping and releasing mechanism for automatically putting liquid detergent, which comprises a pumping and releasing mechanism body 100 arranged in a feeding box body 200, wherein the pumping and releasing mechanism body 100 comprises a piston connecting rod assembly 11, a valve core assembly 12, a first driving assembly 15 and a second driving assembly 16; wherein the content of the first and second substances,

one end of the valve core component 12 is connected with a valve core rotating shaft 13, and the other end is connected with a plurality of sealed pumping and discharging cavities 14; each pumping cavity 14 is provided with a one-way discharge port 1244, one side wall of the pumping cavity 14 is in one-way communication with a detergent storage cavity of the feeding box body 200, the other side wall of the pumping cavity is provided with a one-way discharge port 1244, the discharge port 1244 corresponds to one liquid guide cavity, each pumping cavity 14 is not communicated with the same detergent storage cavity in a crossed manner or is not communicated with the same liquid guide cavity in a crossed manner, a valve core rotating shaft 13 is axially provided with a first through hole 131, one end of a piston connecting rod assembly 11 is movably arranged in the first through hole 131, and the first through hole 131 is selectively communicated with one of the pumping cavities 14 through a valve core assembly 12;

after the target pumping cavity 14 is set, the first driving assembly 15 drives the valve plug rotating shaft 13 to rotate until the first through hole 131 is selectively communicated with the target pumping cavity 14, the second driving assembly 16 drives one end of the piston connecting rod assembly 11 to axially reciprocate in the first through hole 131, and the pressure in the target pumping cavity 14 is changed, so that the liquid detergent in the detergent storage cavity which is communicated with the target pumping cavity 14 in a one-way mode flows into the target pumping cavity 14 or the liquid detergent in the target pumping cavity 14 flows out from the discharge port 1244, and pumping or discharging of the liquid detergent is realized.

In this embodiment, the number of the detergent storage chamber and the pumping chamber 14 is three, that is, the first pumping chamber 141, the second pumping chamber 142, and the third pumping chamber 143 are included. For example, when the drainage mechanism body 100 of the present invention is applied to a washing machine, the drainage cavity refers to a cavity for directly pouring detergent into a water tub of the washing machine, the number of the drainage cavities is set according to the user's requirement, and further, the number of the drainage cavities is three. The detergent storage cavity, the liquid guide cavity and the drainage cavity 14 are in one-to-one correspondence to form three drainage systems, and the first drainage cavity 141, the second drainage cavity 142 and the third drainage cavity 143 are respectively used for drainage of three washing products, namely the most commonly used laundry detergent, softener and aromatic. As shown in fig. 5, the first through hole 131 is connected to the first pumping cavity 141, and at this time, the first pumping cavity 141 is a pumping cavity of the target.

As shown in fig. 2 and 3, the piston link assembly 11 includes a piston link 111 and a piston head 112, the piston link 111 is a rectangular thin plate, the outer shape and size of the piston head 111 is the same as the outer shape and size of the first through hole 131, and the piston head 111 is attached to the first through hole 131, so that a sealed space is formed between the target exhaust cavity 14 communicated with the first through hole 131 and the outer wall of the piston head 112; the piston rod 112 is connected at one end to the piston head 111 and at the other end to the second drive assembly 16. Furthermore, at least one piston rubber ring 113 with two rings for increasing the sealing performance is arranged on the periphery of the piston head, the piston rubber ring 113 is tightly attached between the outline of the first through hole 131 and the periphery outer wall of the piston head 112, and when the piston head 112 reciprocates in the first through hole 131 along with the piston connecting rod 111, the sealing degree in the drawing cavity 14 is ensured.

As shown in fig. 1 to fig. 3, the first driving assembly 15 includes a motor 151 having a motor shaft 152 at one end, a driving gear 153 coaxially disposed on the motor shaft 152, and a driven gear 154 engaged with the driving gear 153; the motor 151 rotates to drive the motor shaft 152 to drive the driving gear 153 to rotate together with the driven gear 154, so that the valve core shaft 13 can rotate until the first through hole 131 is communicated with the target pumping and discharging cavity 14, and the first through hole 131 where the piston connecting rod assembly 11 is located is aligned with the target pumping and discharging cavity 14 to perform pumping or pressing, so as to change the pressure of the target pumping and discharging cavity 14.

In one embodiment, the second driving assembly 16 is a linear motor connected to one end of the piston-connecting rod assembly 11, and directly drives the piston connecting rod 111 and the piston head 112 to reciprocate in the first through hole 131.

In one embodiment, the second driving assembly 16 includes a rotating assembly, a rotating member, and a protruding rod 161 eccentrically disposed on a surface of the rotating member, wherein one end of the piston connecting rod 111 is provided with a slot 1111, and one end of the protruding rod 161 is movably disposed in the slot 1111; the rotating member is rotated by the rotating member, so that the protruding rod 161 performs a circular motion and reciprocates in the long hole 1111, to guide the piston and connecting rod assembly 11 to reciprocate in the first through hole 131. In one embodiment, the slot 1111 is an elongated through hole, and one end of the protruding rod 161 penetrates through the slot 1111 and can reciprocate along the inner contour of the slot 1111. In one embodiment, the slot 1111 is an elongated blind hole, and one end of the protruding rod 161 is located in the slot 1111 and can reciprocate along the inner contour of the slot 1111.

Further, as shown in fig. 4, in the present embodiment, the rotating assembly includes a worm 162 externally sleeved on the peripheral side of the motor rotating shaft 152, and a worm wheel 163 engaged with the worm 162, a ratchet 17 is respectively disposed on the driving gear 153 and the worm wheel 163, the rotating directions of the two ratchets 17 are opposite, and the rotating member is a first ratchet 171 on the worm wheel 163; the motor 151 rotates to drive the motor shaft 152 to rotate to drive the worm 162 and the worm wheel 163 to rotate, so that the protruding rod 161 reciprocates in the slot 1111.

The worm wheel 163 is provided with a first ratchet wheel 171, and the worm wheel 163 is internally provided with a first pawl 1631 which is in one-way transmission with the first ratchet wheel 171, so that the worm wheel 163 and the first ratchet wheel 171 form a first ratchet mechanism; the driving gear 153 is provided with a second ratchet wheel 172, a second pawl 1531 which is in one-way transmission with the second ratchet wheel 172 is arranged in the driving gear 153, so that the driving gear 153 and the second ratchet wheel 172 form a second ratchet mechanism, the second ratchet wheel 172 is fixedly connected with the motor rotating shaft 152, and the rotating directions of the first ratchet wheel 171 and the second ratchet wheel 172 are opposite.

The first pawl 1631 is rotationally movable in one direction only while the first ratchet 171 is not rotatable in the other direction as the worm wheel 163 is rotated to push the first ratchet 171. The second ratchet 172 can only apply a force to the second pawl 1531 in one direction along with the rotation of the motor shaft 152, so that the driving gear 153 can only rotate in one direction, and the driving gear 153 cannot rotate in the other direction.

For example, when the motor 151 rotates forward, the motor shaft 152 drives the worm 162 and the second ratchet wheel 172 on the driving gear 153 to rotate, the second ratchet wheel 172 drives the second pawl 1531 to drive the driving gear 153 to rotate, and drives the driven gear 154 to rotate, and finally drives the valve core shaft 13 to rotate until the first through hole 131 is communicated with the target pumping and discharging cavity 14. At this time, due to the arrangement of the first ratchet wheel 171 of the worm wheel 163, the worm wheel 163 is rotated by the rotation of the worm 162, the first pawl 1631 rotates, and the first ratchet wheel 171 does not contact with the first pawl 1631, so that the first pawl 1631 does not rotate in the worm wheel 163, and the protruding rod 161 eccentrically arranged on the outer surface of the first ratchet mechanism 171 is also stationary and does not perform a circular motion, so that the piston link assembly 11 is in an inoperative state.

When the motor 151 rotates reversely, the second ratchet 172 rotates along with the motor shaft 152, but the second pawl 1531 does not contact with the second ratchet 172, the second ratchet 172 idles with respect to the driving gear 153, the driving gear 153 does not rotate, and the spool shaft 13 does not rotate. At this time, the worm 162 rotates the worm wheel 163, and the first pawl 1631 of the worm wheel 163 rotates to drive the first ratchet 171 to rotate, so that the protruding rod 161 eccentrically disposed on the outer surface of the first ratchet 171 performs a circular motion and reciprocates in the long hole 1111, so that the piston link assembly 11 reciprocates in the first through hole 131.

In one embodiment, the motion assembly includes bevel gears, the bevel gears include a driving bevel gear sleeved on the peripheral side of the motor shaft 152 and a driven bevel gear engaged with the driving bevel gear, the driving gear 153 and the driven bevel gear are respectively provided with a ratchet, and the rotation directions of the two ratchets are opposite. The rotating piece is a ratchet wheel arranged on the driven bevel gear. Other technical features and driving steps of the moving assembly are the same as those of the embodiment in which the moving assembly is a worm wheel and a worm, and are not described herein again.

In one embodiment, as shown in fig. 1, the cross section of the protruding rod 161 is an ellipse, the cross section of the long hole 1111 is a rounded rectangle with unequal leading edges, the length of the protruding rod 161 is consistent with the width of the long hole 1111, and the protruding rod 161 can reciprocate along the contour of the long hole 1111 so as to determine the distance of one-way movement of the piston and connecting rod assembly 11 according to the sizes of the protruding rod 161 and the long hole 1111.

The elongated hole 1111 always covers the circular motion footprint of the protruding rod 161 during the reciprocating motion of the piston and connecting rod assembly 11, so that the second drive assembly 16 exerts only a force in the axial direction of the first through hole 131 on the piston and connecting rod assembly 11. So as to prevent the acting force directed to the inner wall peripheral direction of the first through hole 131 from being applied to the piston connecting rod assembly 11, and further increase the friction force between the piston connecting rod assembly 11 and the contour of the first through hole 131 during the reciprocating motion in the first through hole 131, which results in the difficulty or failure of the reciprocating motion of the piston connecting rod assembly 11.

Further, the length direction of the long hole 1111 is perpendicular to the reciprocating direction of the piston link assembly 11, and the required length of the long hole 1111 is the minimum. The length of the long hole 1111 is consistent with the diameter of the circle where the protruding rod 161 moves circularly, so that the long hole 1111 always covers the circular motion footprint of the protruding rod 161 during the reciprocating motion of the piston link assembly 11.

The reciprocating direction of the piston connecting rod 111 is parallel to the rotation axis of the motor rotation shaft, which is convenient for the design and layout of the structure.

In this embodiment, as shown in fig. 2 and fig. 3, the valve core assembly 12 includes a movable valve plate 121 connected to the valve core rotating shaft 13, and a fixed valve plate 122 attached to another surface of the movable valve plate 121 opposite to the valve core rotating shaft 13, the movable valve plate 121 has a second through hole 1211 communicated with the first through hole 131, and a blind hole 1212 communicated with the second through hole 1211, the fixed valve plate 122 has a plurality of third through holes 1221, and the plurality of third through holes 1221 are respectively communicated with a pumping cavity 14; the valve core rotating shaft 13 rotates to drive the movable valve plate 121 to rotate relative to the fixed valve plate 122, and rotates until the blind hole 1212 is communicated with one of the third through holes 1221, so that the first through hole 131 is communicated with the target pumping and discharging cavity 14. In this embodiment, the number of the third through holes 1221 is three, and the number of the blind holes is one. The three third through holes 1221 are respectively in one-to-one correspondence communication with the first pumping cavity 141, the second pumping cavity 142, and the third pumping cavity 143. Along with the rotation of the movable valve plate 121, the movement path of the blind hole 1212 on the movable valve plate 121 can sequentially cover the three third through holes 1221, and when the target drawing and releasing cavity 14 is selected, the blind hole 1212 moves to cover the third through hole 1221 communicated with the target drawing and releasing cavity 14. Further, the first through hole 131 and the third through hole 1221 are coincident in central axis.

In another embodiment, the number of the blind holes 1212 is two, and as the movable valve plate 121 rotates, the two blind holes 1212 on the movable valve plate 121 can simultaneously communicate with the two third through holes 1221, and at this time, there are two pumping cavities 14 targeted for pumping cavities 14, such as the first pumping cavity 141 and the second pumping cavity 142. For example, the two blind holes 1212 may have the same size, and the two blind holes 1212 may communicate with the two third through holes 1221 at the same time, or one blind hole communicates with one third through hole 1221, and the other blind hole 1212 is in contact with the surface of the stationary valve plate 122 outside the third through hole 1221. For another example, the plurality of third through holes 1221 formed in the fixed valve plate 121 are respectively arranged on two circular paths with different diameters, the two blind holes 1212 have different lengths, and the two blind holes 1212 can respectively cover one of the third through holes 1221 arranged on the circular paths with different diameters as the movable valve plate 121 rotates.

Further, as shown in fig. 2 and 3, the valve core assembly 12 further includes a connecting member 123, one side of the connecting member 123 is connected to one end of the valve core rotating shaft 13, and the other side is connected to the movable valve plate 121 in a clamping manner. The connecting member 123 is provided with a fourth through hole 1232 communicated with the first through hole 131, and the shape and size of the fourth through hole 1232 are the same as those of the first through hole 131. In one embodiment, the connecting member 123 is integrated with the valve core rotating shaft 13; in another embodiment, the connection member 123 is provided separately from the spool rotation shaft 13.

In one embodiment, three pumping chambers 14 are disposed in the housing 21 of the batch charging box body 200.

In an embodiment, as shown in fig. 2 and fig. 3, the valve core assembly 12 further includes a fixing member 124 having one surface attached to the fixing plate 121, and the fixing member 124 is provided with three pumping cavities 14, namely a first pumping cavity 141, a second pumping cavity 142, and a third pumping cavity 143, which are respectively communicated with the three third through holes 1221. The pumping chamber 14 is in one-way communication with a detergent storage chamber of the feeding box body 200 through a one-way valve (not shown), and the discharge port 1244 of the pumping chamber 14 is provided with a one-way valve. Vent 1244 is aligned with the drainage lumen and fluid in the drainage lumen can flow into the drainage lumen while fluid in the drainage lumen cannot flow into the drainage lumen 14. In one embodiment, each drainage lumen 14 is in one-way communication with its respective drainage lumen via a one-way valve. In yet another embodiment, each pumping chamber 14 is separated from its corresponding drainage chamber, i.e. the pumping chamber 14 is not connected to the drainage chamber, and the side of the pumping chamber 14 provided with the check valve is aligned with the opening of the drainage chamber, so that the liquid in the pumping chamber 14 can be drained into the drainage chamber under the action of the piston-link assembly.

The drainage cavity 14 is arranged in the fixing member 124, the position relationship between the fixing member 124 and the movable valve plate 121 and the fixed valve plate 122 is relatively easy to determine, and the parts are easy to align during assembly and convenient to align with the target drainage cavity 14 during automatic delivery. When the detergent is automatically put in, the three third through holes 1221 on the fixed valve plate 122 are respectively aligned with the first pumping and discharging cavity 141, the second pumping and discharging cavity 142, and the third pumping and discharging cavity 143 on the fixed member one by one, the valve element rotating shaft 13 is driven by the first driving assembly 15 to rotate so as to drive the movable valve plate 121 to rotate until the blind hole 1212 on the movable valve plate 121 is communicated with the third through hole 1221 communicated with the pumping and discharging cavity 14 of the target, at this time, the first through hole 131, the second through hole 1211, the blind hole 1212, the third through hole 1221 communicated with the pumping and discharging cavity 14 of the target, and the pumping and discharging cavity 14 of the target are sequentially communicated, the piston connecting rod assembly 11 is driven by the second driving assembly 16 to reciprocate in the first through hole 131 so as to change the pressure in the pumping and discharging cavity 14 of the target, and further to pump the liquid detergent from the detergent storage cavity of the target into the pumping and discharging the detergent from the pumping and discharging cavity 14 of the target to the liquid guiding cavity of the target, the dosing of the liquid detergent can be accurately controlled. As shown, the target pumping chamber 14 is a first pumping chamber 141.

Further, as shown in fig. 2 and fig. 3, the valve core assembly 12 further includes a fixing sleeve 125 fixedly connected to the housing 21 of the feeding box body 200, and is of a hollow structure with an opening on one side, one end of the valve core rotating shaft 13 rotatably penetrates through a side wall of the fixing sleeve 125, the connecting element 123 and the movable valve plate 121 are rotatably disposed in the fixing sleeve 125, and the fixing element 124 is fixedly connected to one side of the fixing sleeve 125.

In one embodiment, as shown in fig. 2 and 3, the cross-sections of the connecting member 123, the movable valve plate 121, the fixed valve plate 122, the fixing member 124, and the fixing sleeve 125 are circular. The rotation number of turns of the motor 151 required when the blind hole 1212 of the movable valve plate 121 and the third through hole 1221 of the fixed valve plate 122 are communicated is conveniently calculated, and the alignment of the blind hole 1212 and the third through hole 1221 communicated with the target pumping and discharging cavity 14 is conveniently controlled.

As shown in fig. 2 and fig. 3, a plurality of first grooves 1213 are disposed on the outer wall of the movable valve plate 121, and a plurality of first protrusions 1231 connected to the first grooves 1213 in a clamping manner are disposed on the periphery of one surface of the connecting member 123. The number of the first grooves 1213 and the number of the first protrusions 1231 are both two. The movable valve plate 121 is clamped with the connecting member 123 from the side of the connecting member 123 where the first protrusion 1231 is disposed, and the two first grooves 1213 are located in the same diameter direction of the movable valve plate 121, so that the two first protrusions 1231 can clamp two sides of the movable valve plate 121.

The peripheral outer wall of the fixed valve plate 122 is provided with a plurality of second grooves 1222, and the periphery of one surface of the fixed member 124 is provided with a plurality of second protrusions 1241 connected with the second grooves 1222 in a clamping manner. The number of the second grooves 1222 and the number of the second bumps 1241 are four. The fixed valve plate 122 is clamped with the fixing member 124 from the side of the fixing member 124 provided with the second protrusion 1241, and the four second grooves 1222 are uniformly distributed along the peripheral side of the fixed valve plate 122, so that the clamping fixation of the second protrusion 1241 of the fixing member 124 to the fixed valve plate 122 is firmer.

The fixing member 124 is provided with a plurality of third grooves 1242 with openings on both sides, and a plurality of fasteners 1251 fastened to the third grooves 1242 are provided on one surface of the fixing sleeve 125. The number of the third grooves 1242 and the number of the fasteners 1251 are three. The three third grooves 1242 are uniformly distributed along the periphery of the fixing member 124, so that the fixing acting force of the fastening member 1251 on the fixing member 124 is uniformly distributed, and the fixing is more stable. The fixing sleeve 125 is connected with the fixing member 124 in a snap-fit manner to form a relatively sealed accommodating cavity, and the movable valve plate 121, the fixed valve plate 122 and the connecting member 123 are all located in the accommodating cavity formed by the fixing sleeve 125 and the fixing member 124.

In one embodiment, as shown in fig. 3, the pumping chamber 14 further includes a plurality of pumping ports 1243 protruding from the outer surface of the fixing member 124, so as to increase the size of the pumping chamber 14 and increase the variation of the liquid detergent during one pumping or discharging operation of the pumping mechanism body 100.

As shown in fig. 5 and 6, a discharge port 1244 is provided on a side wall of the suction chamber 14 corresponding to the drainage chamber, a check valve for one-way communication between the suction chamber 14 and the liquid storage chamber is provided at a port of the suction port 1243, and a check valve for one-way liquid communication between the suction chamber 14 and the drainage chamber is provided at a port of the discharge port 1244. The one-way valve opens or closes as the pressure within the pumping chamber 14 changes. That is, the pressure difference between both sides of the pumping chamber 14 and the detergent storage chamber and the pressure difference between both sides of the discharge port 1244 are higher than the set pressure difference of their corresponding check valves, the liquid detergent in the detergent storage chamber flows into the pumping chamber 14 or the liquid detergent in the pumping chamber 14 flows out. When the pressure difference between the two sides of the one-way valve is lower than the set pressure difference, the one-way valve is closed, and no liquid flows between the two cavities.

As shown in fig. 2, a sealing ring 126 is disposed at a contact portion of the fixing member 124 and the housing 21 of the feeding box body 200, and a sealing ring (not shown) is disposed at a contact portion of the fixing member 124 and the fixing valve plate 122 to ensure the sealing performance of the pumping chamber 14.

It should be understood that, as shown in fig. 5, the target pumping and releasing cavity 14 is a pumping and releasing cavity communicated with a detergent storage cavity corresponding to a need of automatically putting in liquid detergent and a drainage cavity corresponding to a need of automatically putting in liquid detergent, at this time, the target pumping and releasing cavity 14 is communicated with the blind hole 1212 through the third through hole 1221 and is finally communicated with the first through hole 131, and the piston connecting rod 111 reciprocates in the first through hole 131 to affect the pressure in the target pumping and releasing cavity 14. As shown in fig. 6, the two pumping chambers 14 are not communicated with the blind hole 1212, so that the piston connecting rod 111 reciprocates in the first through hole 131 without affecting the pressures in the two pumping chambers 14.

As shown in fig. 10, the valve core assembly 12 further includes an electromagnetic induction element, and the steering angle of the valve core assembly can be precisely controlled by the electromagnetic induction principle.

A pump-down mechanism for automatically dispensing liquid detergent, comprising: the automatic detergent feeding device comprises a main control board and a pumping and releasing mechanism body 100, wherein the main control board executes the method for automatically feeding the detergent, and the pumping and releasing mechanism body 100 comprises a piston, a rotating device and a motor; one end of the rotating device is connected with the sealed pumping and discharging cavities 14, and the other end of the rotating device is connected with the piston; the motor drives the rotating device to rotate until the piston is selectively communicated with the pumping cavity 14 of the target, the motor drives the piston to axially reciprocate in the rotating device, the pressure in the pumping cavity 14 of the target is changed, so that the detergent in the detergent storage cavity which is communicated with the pumping cavity 14 of the target in a one-way mode flows into the pumping cavity 14 of the target or the detergent in the pumping cavity 14 of the target flows out from the discharge port 1244, and pumping or discharging of the detergent is realized.

The valve core assembly 12 comprises a movable valve plate 121 connected with the valve core rotating shaft 13 and a fixed valve plate 122 attached to the other surface of the movable valve plate 121 opposite to the valve core rotating shaft 13, the movable valve plate 121 is provided with a second through hole 1211 communicated with the first through hole 131 and a blind hole 1212 communicated with the second through hole 1211, the fixed valve plate 122 is provided with a plurality of third through holes 1221, and the plurality of third through holes 1221 are respectively communicated with the drawing cavity 14; the valve core rotating shaft 13 rotates to drive the movable valve plate 121 to rotate relative to the fixed valve plate 122, and the movable valve plate rotates until the blind hole 1212 is communicated with the third through hole 1221 communicated with the target pumping and releasing cavity 14, so that the first through hole 131 is communicated with the target pumping and releasing cavity 14.

The valve core assembly 12 further comprises a magnet device for electromagnetic induction and an electronic component for electromagnetic induction. In order to facilitate the precise control of the magnet device and the electronic component, the magnet device and the electronic component are arranged nearby. In one embodiment, the magnetic sensing element 18 is disposed on the rear end of the driven gear 154 on the spool shaft 13, and the magnetic sensing element 18 is fixed to the spool shaft 13 through the end cap 181. The end cap 181 may be integrally formed with the valve core spindle 13 or may be formed by assembly. End cap 181 is shaped to approximate the shape of magnetic induction element 18 to accommodate magnetic induction element 18. When the magnetic induction element is a cylinder, the end cap 181 is a hollow cylinder. In one embodiment, end cap 181 defines a notch for magnetic sensing element 18 to interact with electrical sensing element 191 when moved into position with electrical sensing element 191. A printed circuit board 19 with a signal wire harness 192 is disposed on the upper housing of the valve core assembly 12, i.e., the connector 123 of the valve core assembly, and a plurality of electrical sensing elements 191 are disposed on the printed circuit board 19. In one embodiment, the printed circuit board 19 is disposed on the spool 13 and fixed to the connecting member 123, i.e., between the end cap 181 and the connecting member 123. The printed circuit board 19 is of a board structure. The number of the electric sensing elements 191 is related to the number and the position of the third through holes 1221 on the fixed valve plate. In one embodiment, when there are three third through holes 1221 on the fixed valve plate 122, three electric sensing elements 191 are disposed on the printed circuit board 19, and the positions of the three electric sensing elements 191 correspond to the positions of the three third through holes 1221 on the fixed valve plate one by one. When the magnetic induction element 18 and the electric induction element 191 are mutually induced, a feedback signal is sent out through the signal wire harness 192, so that the blind hole 1212 on the movable valve plate 121 and the third through hole 1221 on the fixed valve plate realize accurate hole alignment, and accurate selection of different third through holes, namely different pumping and discharging cavities 14, is realized.

When a signal instruction is given by a control panel, the motor rotates forwards, the valve core rotating shaft 13 rotates, the magnetic induction element 18 fixed on the valve core rotating shaft rotates at the same angular speed, the printed circuit board 19 which is at a fixed distance from the magnetic induction element 18 is fixed on the connecting piece 123, the movable valve plate 121 fixed together with the valve core rotating shaft 13 also rotates at the same angular speed, when the movable valve plate rotates to a defined angle, the magnetic induction element 18 on the valve core rotating shaft 13 and the electric induction element 191 on the printed circuit board 19 mutually sense and send a feedback signal through a signal line to prevent the motor from continuing to rotate, so that the precise rotation of the defined angle is realized, the precise hole positioning is realized between the blind hole 1212 on the movable valve plate 121 fixed together with the valve core rotating shaft 13 and the third through hole 1221 on the fixed valve plate 122, and the precise selection of different drawing.

EXAMPLE III

As shown in fig. 7, 8 and 9, the present invention provides a feeding box for automatically feeding a liquid detergent, comprising a feeding box body 200, wherein the feeding box body 200 comprises a housing 21, a plurality of detergent storage cavities (not shown) disposed in the housing 21, and the drawing and releasing mechanism body 100 as described above, and one side wall of each drawing and releasing cavity 14 of the drawing and releasing mechanism body 100 is in one-way communication with one detergent storage cavity.

In one embodiment, the feeding box body 200 further includes a plurality of drainage chambers (not shown), and the drainage opening 1244 of each drainage chamber 14 is communicated with one drainage chamber, and the drainage chambers 14 are not communicated with the same detergent storage chamber or the same drainage chamber. In this embodiment, the number of the detergent storage chamber, the drainage chamber and the pumping chamber 14 is three.

In one embodiment, as shown in fig. 8 and 9, a cavity 211 is formed on the outer wall of the housing 21, the valve core assembly 12 is disposed outside the cavity 211, and the cavity 211 is shaped and sized to match the outer profile of the valve core assembly 12 disposed inside the cavity 211. The retaining sleeve 125 of the valve cartridge assembly 12 is fixedly attached within the recess 211. The first driving assembly 15 and the second driving assembly 16 are located outside the housing 21.

It should be understood that the housing 21 shown in fig. 7, 8 and 9 is only a simple illustration and does not show the specific structure of the detergent storage chamber and the drainage chamber, and the detergent storage chamber or the drainage chamber may be included in the housing 21 shown in the drawings or may be outside the housing 21 shown in the drawings, and it will be apparent to those skilled in the art that several modifications or technical feature substitutions can be made without departing from the principle of the present invention, and these modifications or technical feature substitutions are all considered as the protection scope of the present invention.

Example four

The invention provides a washing machine, which comprises a washing machine body and the feeding box body 200 arranged in the washing machine body. In this embodiment, the number of the detergent storage chamber, the drainage chamber and the pumping chamber 14 is three.

Before use, corresponding washing products such as laundry detergent, softener and detergent are respectively injected into the three detergent storage cavities.

When the laundry detergent dispensing device is used, for example, laundry detergent needs to be automatically dispensed, the motor rotates forward to drive the first driving assembly 15 to drive the valve element rotating shaft 13 to drive the movable valve plate 121 to rotate until the blind hole 1212 on the movable valve plate 121 is aligned with the third through hole 1221 on the fixed valve plate 122, which is communicated with the target pumping cavity 14 in one-way communication with the detergent storage cavity for storing the laundry detergent.

The motor rotates reversely, the second driving assembly 16 is driven to drive the piston connecting rod assembly 11 to move in the first through hole 131 in a single-pass mode, the pressure in the target pumping cavity 14 is reduced until the difference value of the pressure in the detergent storage cavity, which is higher than the pressure in the target pumping cavity 14, reaches the set pressure difference value between two sides of the one-way valve for one-way communication between the target pumping cavity 14 and the detergent storage cavity, and the laundry detergent in the detergent storage cavity for storing the laundry detergent enters the target pumping cavity 14. The motor continuously rotates reversely, the second driving assembly 16 is driven to drive the piston connecting rod assembly 11 to move in the other direction in the first through hole 131 in a return stroke mode, the pressure in the target pumping cavity 14 is increased until the pressure in the target pumping cavity 14 is higher than the pressure in the liquid guide cavity by a difference value, and the pressure difference value between two sides of a check valve arranged on one side of the liquid detergent cavity corresponding to the target pumping cavity 14 is reached, so that the laundry detergent in the target pumping cavity 14 enters the liquid guide cavity corresponding to the laundry detergent. And the motor continuously rotates reversely, when the washing liquid amount in the liquid guide cavity reaches the washing standard amount, the motor stops rotating, and the washing machine operates the washing operation.

The pumping and releasing mechanism for automatically releasing liquid detergent provided by the invention can be used for automatically releasing two, three or even more liquid detergents. In a preferred scheme, worm gear transmission or bevel gear transmission and a pair of meshing gears's cooperation, make can accomplish the drainage chamber of selecting the target through the corotation of a motor 151 or reversal, two operations of drainage, and the motor, worm gear or a pair of bevel gear, driving gear and driven gear, piston link assembly all set up along drainage chamber axial direction, arrange compactly exquisitely, only need washing machine transversely leave certain fitting space can, do not occupy washing machine longitudinal space, do not influence the installation of other structures in the washing machine, simple structure occupies that space is little simultaneously promptly, be applicable to the equipment that needs drainage liquid detergent in each field. In addition, through the shape and size of control nose bar, slot hole, first through-hole, second through-hole, blind hole, third through-hole, pump drainage chamber, the automatic volume of puting in liquid detergent of accurate control.

As will be appreciated by one skilled in the art, embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, one or more embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, one or more embodiments of the present description may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of adaptation of the invention, and further modifications can be easily implemented by those skilled in the art, so that the invention is not limited to the specific details and the examples shown herein, without departing from the general concept defined by the claims and the scope of equivalents.

Claims

1. A method for automatically putting detergent is characterized by comprising the following steps:

acquiring a target washing program, and configuring a target detergent according to the target washing program;

configuring a motor to perform a rotating action according to a target detergent, wherein the motor drives a rotating device to move so as to switch the detergent, so that a piston is communicated with a pumping cavity of the target detergent under the action of the rotating device;

and automatically putting detergent, and configuring a motor to perform a rotating action so as to suck the target detergent and enter a liquid guide cavity corresponding to the target detergent.

2. The method for automatically putting detergent in according to claim 1, wherein when the motor is configured to perform a rotating motion according to the target detergent, the motor is driven to rotate forward, and after the motor rotates for a set number of turns, the first driving assembly (15) drives the valve plug rotating shaft (13) to rotate until the blind hole (1212) on the movable valve plate (121) is aligned with the third through hole (1221) on the fixed valve plate (122), so that the first through hole (131) is communicated with the target drawing and releasing cavity (14).

3. The method for automatically putting detergent in according to claim 2, characterized in that, when the detergent is automatically put in, the driving motor is driven to rotate reversely, the pressure in the pumping cavity (14) of the target detergent is reduced, so that the target detergent enters the target pumping cavity (14); the motor continues to rotate in the opposite direction so that the detergent in the drainage chamber (14) of the target enters the drainage chamber corresponding to the target laundry detergent.

4. The method for automatically dispensing detergent according to claim 1, further comprising, before the step of automatically dispensing detergent: weight information of the laundry is acquired to determine a laundry amount and/or a laundry time.

5. The method for automatically putting detergent according to claim 1, further comprising, before the step of automatically putting detergent, detecting the detergent remaining amount in the drainage chamber to control whether to operate the automatic putting, and if the detergent remaining amount is not enough, stopping the automatic putting and giving a prompt to a user.

6. The method of claim 1, wherein the step of automatically dispensing the detergent further comprises obtaining a flow coefficient of the fluid flowing from the drainage chamber into the washing machine, comparing the flow coefficient of the fluid with a target flow coefficient, and if the flow coefficient is less than the target flow coefficient, stopping the automatic dispensing and providing a prompt to the user.

7. The method for automatically dispensing detergent according to claim 2, wherein when the motor performs a rotating motion; the electromagnetic induction device is controlled to send out a signal to prevent the motor from rotating, so that the piston is communicated with the pumping cavity of the target detergent.

8. The method for automatically dispensing detergent according to claim 7, wherein when the motor performs a rotating motion; the magnetic induction elements on the valve core rotating shaft rotate at the same angular speed; the magnetic induction element on the valve core rotating shaft (13) and the electronic induction element on the valve core assembly (12) shell are mutually induced, a feedback signal is sent out through a signal wire harness (192), and the motor is prevented from rotating based on the feedback signal, so that the piston is communicated with the pumping and discharging cavity of the target detergent.

9. A pump-down mechanism for automatically dispensing liquid detergent, comprising: -a main control board, a pumping mechanism body (100), characterized in that said main control board is configured to execute a computer program of the method of automatic dosing of detergent according to any of claims 1-8, said pumping mechanism body (100) comprising a piston, a rotating device, an electric motor; wherein the content of the first and second substances,

one end of the rotating device is connected with a plurality of sealed pumping cavities (14), and the other end of the rotating device is connected with the piston; the motor drives the rotating device to rotate until the piston is selectively communicated with the pumping cavity (14) of the target, the motor drives the piston to axially reciprocate in the rotating device, the pressure in the pumping cavity (14) of the target is changed, so that detergent in a detergent storage cavity which is communicated with the pumping cavity (14) of the target in a one-way mode flows into the pumping cavity (14) of the target or the detergent in the pumping cavity (14) of the target flows out from a discharge port (1244), and pumping or discharging of the detergent is achieved.

10. The pumping mechanism for automatically putting in liquid detergent according to claim 9, wherein the rotating device comprises a valve core assembly (12), the valve core assembly (12) comprises a movable valve plate (121) connected with the valve core rotating shaft (13) and a fixed valve plate (122) attached to the other side of the movable valve plate (121) opposite to the valve core rotating shaft (13), the valve core rotating shaft (12) is axially provided with a first through hole (131), and one end of the piston is movably arranged in the first through hole (131); the movable valve plate (121) is provided with a second through hole (1211) communicated with the first through hole (131) and a blind hole (1212) communicated with the second through hole (1211), the fixed valve plate (122) is provided with a plurality of third through holes (1221), and the third through holes (1221) are respectively communicated with the pumping cavity (14); wherein the content of the first and second substances,

the valve core rotating shaft (13) rotates to drive the movable valve plate (121) to rotate relative to the fixed valve plate (122), and the movable valve plate rotates until the blind hole (1212) is communicated with a third through hole (1221) communicated with a target pumping cavity (14), so that the first through hole (131) is communicated with the target pumping cavity (14).

11. The pump-action mechanism for the automatic dispensing of liquid detergents according to claim 10, characterized in that said valve-core shaft (13) comprises magnetic induction elements (18), said valve-core assembly (12) comprises a printed circuit board (19) on the housing, said printed circuit board comprises electric induction elements (191), said electric induction elements (191) are distributed on the printed circuit board (19) in accordance with the distribution of the third through holes (1221) on the stationary plate (122); the valve core rotating shaft (13) rotates to an angle, so that the magnetic induction element (18) and an electronic induction element (191) on the printed circuit board are mutually induced, and a signal wire harness (192) sends a feedback signal to control the first through hole (131) to be communicated with the target drainage cavity (14).

12. The pump-action mechanism for automatically dispensing liquid detergents according to claim 11 wherein said valve-core shaft (13) is provided with an end cap (181), said magnetic induction element (18) being fixed to said valve-core shaft (13) by said end cap (181); a notch is formed in one side, close to the valve core assembly (12), of the end cap (181); the valve core rotating shaft (13) rotates, the magnetic induction element (18) rotates relative to the printed circuit board (19), and the magnetic induction element (18) mutually induces with an electric induction element (191) on the printed circuit board (19) through a notch on the end cap (181).