CN112921585B

CN112921585B - Method for automatically putting detergent and drawing-out mechanism

Info

Publication number: CN112921585B
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: 2023-08-22
Anticipated expiration: 2039-12-06
Also published as: CN112921585A

Abstract

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

Description

Method for automatically putting detergent and drawing-out mechanism

Technical Field

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

Background

In the prior art, when the washing machine is used for putting the detergent, the detergent box is manually pulled and pushed before washing, and then the detergent, the detergent or the softener is put in the corresponding position of the detergent box, if other articles are in the hands of a user, the detergent box is inconvenient to extract.

In addition, at present, a washing machine capable of automatically throwing in the detergent is also appeared, but the washing machine is mainly suitable for automatically throwing in one detergent, and when a user needs to throw in various detergents, the washing machine cannot realize automatic throwing in. Therefore, the method and the device for automatically putting the washing machine in the existing washing machine are required to be improved, the structural design and the method are optimized, and a novel method for automatically putting the washing agent and a drawing-out mechanism are designed.

Disclosure of Invention

To overcome the shortcomings of the prior art, an object of the present invention is to provide a method for automatically dosing detergent, comprising the steps of: acquiring a target washing program, and configuring a target detergent by a main control board according to the target washing program; according to the target detergent, the main control board is provided with a motor to execute a rotating action, and the motor drives the rotating device to move so as to switch the detergent, so that the piston is communicated with the drawing cavity of the target detergent under the action of the rotating device; automatically putting the detergent, and configuring a motor by the main control board to execute a rotating action so as to suck the target detergent and enter a liquid guide cavity corresponding to the target detergent.

Preferably, when the motor is configured to perform 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 core 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 pumping cavity.

Preferably, when automatically putting the detergent, 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 target pumping cavity; the motor continues to rotate in the opposite direction, so that the detergent in the drawing and discharging cavity of the target enters the liquid guide cavity corresponding to the target laundry detergent.

Preferably, before the step of automatically dosing the detergent, the method further comprises: the main control board acquires the weight information of the clothes to determine the putting quantity and/or the putting time of the detergent.

Preferably, before the step of automatically adding the detergent, the main control board detects the residual quantity of the detergent in the liquid guide cavity to control whether the automatic adding is operated, and if the residual quantity of the detergent is insufficient, the automatic adding is stopped and a prompt is sent to a user.

Preferably, when automatically adding the detergent, the main control board acquires the flow coefficient of the fluid flowing into the washing machine from the liquid guide cavity, compares the flow coefficient of the fluid with the target flow coefficient, and stops automatically adding and gives 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 motion; 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 drawing cavity of the target detergent.

Preferably, when the motor performs a rotational 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 and the electronic induction element on the valve core assembly shell are mutually induced, and a feedback signal is sent out through the signal wire harness, and the main control board prevents the motor from rotating based on the feedback signal, so that the piston is communicated with the drawing cavity of the target detergent.

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

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, and the pressure in the pumping cavity of the target is changed, so that the detergent in the detergent storage cavity which is unidirectionally communicated with the pumping cavity of the target 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 the pumping or the discharging of the detergent is realized.

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 surface of the movable valve plate opposite to the valve core rotating shaft, 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 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 cavity, so that the first through hole is communicated with the target pumping 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 the distribution of third through holes on the fixed valve plate; the valve core rotating shaft rotates to an angle to enable the magnetic induction element and the electronic induction element on the printed circuit board to mutually sense, and a feedback signal is sent out through the signal wire harness to control the first through hole to be communicated with the drawing and discharging cavity of the target.

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

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

(1) The method for automatically putting the detergent can realize automatic putting of two, three or more liquid detergents. The two operations of selecting the 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 board 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 manual input and consumption is avoided.

(3) In a preferred embodiment, different detergents are automatically dosed at different washing stages according to differences in the nature of use.

(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 washing process is insufficient to cause incomplete washing of clothes is prevented.

The foregoing description is merely an overview of the present application and is intended to provide a better understanding of the present application, as it is embodied in the following examples. Specific embodiments of the present application are given in detail by the following examples.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic perspective view of a body of a pumping mechanism according to the present application;

FIG. 2 is a schematic diagram of an exploded view of the body of the extraction mechanism;

FIG. 3 is a schematic diagram of an exploded view of the body of the extraction mechanism according to the present application;

FIG. 4 is a schematic view of a ratchet mechanism according to the present application;

FIG. 5 is a cross-sectional view of the body of the extraction mechanism of the present application;

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

FIG. 7 is a schematic perspective view of a cartridge according to the present application;

FIG. 8 is a schematic view of an exploded view of a cartridge of the present application;

fig. 9 is a schematic perspective view of a housing of the cartridge of the present application;

FIG. 10 is a schematic view of another perspective structure of the body of the extraction mechanism of the present invention;

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

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

FIG. 13 is a flow chart of a method for determining the residual quantity before automatically adding detergent according to the present invention;

FIG. 14 is a flow chart of another method for determining the remaining amount of detergent automatically administered according to the present invention.

In the figure:

100. a drawing and placing mechanism body;

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

12. a valve core assembly; 121. a movable valve plate; 1211. a second through hole; 1212. a blind hole; 1213. a first groove; 122. a fixed valve plate; 1221. a third through hole; 1222. a second groove; 123. a connecting piece; 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. a fixed sleeve; 1251. a clip; 126. a seal ring;

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

14. a pumping cavity; 141. a first extraction chamber; 142. a second pumping chamber; 143. a third pumping chamber;

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

16. a second drive assembly; 161. a protruding rod; 162. a worm; 163. a worm wheel; 1631. a first pawl;

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

18. a magnetic induction element 181, an end cap;

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

200. a charging 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 to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a device for practicing the invention. 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, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached 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 detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Example 1

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

s101, acquiring a target washing program, and configuring target detergent according to the target washing program. The target washing program can be input by a user, or the washing machine can be used for configuring the washing agent into washing products such as laundry detergent, disinfectant, softener, perfume and the like for washing clothes according to the type and weight of perceived clothes. For example, a user selects normal washing, and a washing machine selects a laundry detergent as a target detergent; the user selects disinfection and washing, and the washing machine selects disinfectant and laundry detergent as target detergents; the user selects comprehensive washing, and the washing machine selects disinfectant, liquid 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 in the market at present, and the detergent combination is used as data to be loaded into the main control board); in addition, the user can also customize the setting according to the requirements of the user. Specifically, the method for automatically throwing the detergent is executed through a chip in the main control board. The chip acquires or analyzes data input by a user; in addition, the chip analyzes the required detergent according to the data stored in the chip according to the clothes put in the washing machine. And the chip executes corresponding instructions according to the analyzed data.

S102, according to the target detergent, the main control board is provided with a motor to execute a rotating action, and the motor drives the rotating device to move so as to switch the detergent, so that the piston is communicated with the drawing cavity of the target detergent under the action of the rotating device. In one embodiment, the rotating means is a first through hole 131 of the spool spindle 13. In one embodiment, the motor rotates positively, and drives the first driving component 15 to drive the valve core rotating shaft 13 to drive the movable valve plate 121 to rotate until the blind hole 1212 on the movable valve plate 121 aligns with the third through hole 1221 on the fixed valve plate 122 which is communicated with the drawing cavity 14 of the object of unidirectional communication with the detergent storage cavity for storing the laundry detergent.

When the number of turns of the motor is configured, calculations are made, respectively, according to the selected target detergent. The actual number of turns of the motor is related to how many turns the blind hole 1212 in the moving blade 121 needs to turn to communicate with the third through hole 1221 in the fixed blade 122. As shown in fig. 2-3, three third through holes 1221 are provided on the fixed valve plate 122, wherein the connecting line of two third through holes 1221 coincides with the diameter of the fixed valve 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 at the other side of the connecting 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 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 valve plate rotates by 90 degrees again, and the fixed valve plate 122 returns to the initial position. I.e., the blind hole 1212 in the movable valve plate can be aligned with a third through hole 1221 every 1/4 turn from the initial position. The main control board can configure the rotation number of the motor according to the rotation relation between the movable valve plate and the fixed valve plate.

S103: automatically putting the detergent, and configuring a motor by the main control board to execute a rotating action so as to suck the target detergent and enter a liquid guide cavity corresponding to the target detergent. In one embodiment, the motor is commanded to rotate in the opposite direction, reducing the pressure within the targeted detergent extraction chamber 14, such that the targeted detergent enters the targeted extraction chamber 14; the motor continues to rotate in the opposite direction, so that the detergent in the target pumping and discharging cavity 14 enters the liquid guide cavity corresponding to the liquid detergent;

specifically, after the target detergent is selected in S103, the motor is instructed to rotate reversely, the second driving assembly 16 is driven to drive the piston-rod assembly 11 to move in the first through hole 131 in one way, the pressure in the target pumping cavity 14 is reduced, and the pressure in the detergent storage cavity is higher than the pressure in the target pumping cavity 14 by a difference value reaching a set value of pressure difference between the pumping cavity 14 which is communicated with the target in one way and the two sides of the check valve of 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 continues to rotate reversely, the second driving component 16 is driven to drive the piston connecting rod component 11 to move back in the other direction in the first through hole 131, the pressure in the target drawing cavity 14 is increased until the pressure in the target drawing cavity 14 is higher than the pressure difference value in the liquid guide cavity to reach the pressure difference set value at two sides of the one-way valve arranged at one side of the liquid detergent containing cavity corresponding to the drawing cavity 14 of the target, and the laundry detergent in the drawing cavity 14 of the target enters the liquid guide cavity corresponding to the laundry detergent.

It should be understood that the motor forward rotation in S102 and the motor reverse rotation in S103 are just one embodiment; in another embodiment the motor in S102 is reversed and in S103 the motor is rotated in forward direction.

In one embodiment, the method further comprises, before the step of automatically dosing the detergent: the main control board acquires the weight information of the clothes to determine the putting quantity and/or the putting time of the detergent. This step is any step prior to 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 the information, the throwing amount and/or throwing time of the detergent are determined. The main control board can be combined with the current clothes material information, the detergent property, the water hardness and the like to determine the washing throwing amount and the washing throwing time. For example, when the target detergent required by the user is a laundry detergent or a softener, the laundry detergent is quantitatively put in the washing process through calculation of the main control board; the softener may be dosed after the washing process is completed or after rinsing.

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

In one embodiment, a residual amount detection step is further included before the user automatically puts in the detergent after S103. The main control board detects the residual quantity of the detergent in the liquid guide cavity to control whether the S104 operates or not. If the remaining amount of the detergent is sufficient, the process proceeds to S104, and if the remaining amount of the detergent 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, the dosing cartridge automatically pops up to alert the user to the addition of detergent when the detergent level is insufficient.

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

In one embodiment, the addition of detergent is also allowed manually, as different users may have their own special needs when washing laundry. The user can increase the dosage of any one of the detergents according to the self requirement and then carry out the washing step.

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

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

In one embodiment, in S102, when the target detergent is two or more kinds of detergents and the time of putting different detergents is the same, the number of turns of the motor is calculated according to the detergent combination, the first driving assembly 15 drives the valve core rotating shaft 13 to rotate, and the first through holes 131 are connected to the pumping chambers 14 of the different target detergents in sequence. When the fixed valve plate 122 is provided with three third through holes 1221, the blind holes 1212 are firstly abutted against the pumping cavity corresponding to one third through hole 1221 set by the user; the motor is driven again, and the blind hole 1212 is abutted against the pumping cavity corresponding to the other third through hole 1221 set by the user; the blind holes 1212 are sequentially aligned to the target third through holes 1221 in sequence.

In one embodiment, in S102, when the target detergent is two or more detergents and the delivery time of different detergents is different, the main control board performs data processing, so as to calculate the delivery amount and the delivery time of different detergents. The motor rotates positively, 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 is provided with three third through holes 1221, the blind holes 1212 are firstly abutted against the suction cavity corresponding to the first third through hole 1221 set by the user; driving the motor to rotate reversely, and pumping the first target detergent into the first target liquid guide cavity; when the main control board prompts that the second detergent should be put in, the motor is driven to rotate forward again, and the blind hole 1212 is abutted against a second drawing cavity corresponding to a second third through hole 1221 set by a user; the motor is driven to rotate reversely, and the second target detergent is pumped into the target liquid guide cavity at set time. In this way, the blind holes 1212 are sequentially aligned to the target third through holes 1221 at different times.

In one embodiment, the number of 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 extraction chambers 14 targeting the extraction chamber 14, such as the first extraction chamber 141 and the second extraction chamber 142. For example, the two blind holes 1212 may have identical shapes and sizes, and the two blind holes 1212 may be connected to the two third through holes 1221 at the same time, or one blind hole may be connected to one third through hole 1221, and the other blind hole 1212 may be in contact with a surface of the fixed valve plate 122 other than the third through hole 1221. For another example, the plurality of third through holes 1221 provided on the fixed valve plate 121 are respectively arranged on two circular paths with different diameters, the lengths of the two blind holes 1212 are different, and along with the rotation of the movable valve plate 121, the two blind holes 1212 can respectively cover one third through hole 1221 arranged on the circular paths with different diameters. 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, detergent can be pumped from the two target pumping chambers at the same time.

A method for automatically dosing a detergent, comprising the following steps.

S201, acquiring a target washing program, and configuring target detergent according to the target washing program. The target washing program can be input by a user, or the washing machine can be used for configuring the washing agent into washing products such as laundry detergent, disinfectant, softener, perfume and the like for washing clothes according to the type and weight of perceived clothes. For example, a user selects normal washing, and a washing machine selects a laundry detergent as a target detergent; the user selects disinfection and washing, and the washing machine selects disinfectant and laundry detergent as target detergents; the user selects comprehensive washing, and the washing machine selects disinfectant, liquid 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 in the market at present, and the detergent combination is used as data to be loaded into the main control board); in addition, the user can also customize the setting according to the requirements of the user.

S202, configuring a motor to execute a rotation action according to the target detergent. When the motor performs a 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 drawing cavity 14 of the target detergent under the action of the rotating device.

Specifically, after the motor rotates positively, 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 valve core assembly 12 shell (namely the connecting piece 123) are mutually induced, and send a feedback signal through the signal wire harness 192, and the main control board prevents the motor from rotating based on the feedback signal, so that the piston is communicated with the target detergent pumping and discharging cavity 14 under the action of the rotating device, namely the target third through hole 1221 on the fixed valve plate 122 is aligned with the position of the blind hole 1212 on the movable valve plate 121, namely the first through hole 131 is automatically aligned with the target detergent pumping and discharging cavity 14.

In one embodiment, the stationary blade 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 contacted with the valve core rotating shaft 13. After the motor rotates positively, the magnetic induction elements on the valve core rotating shaft rotate at the same angular speed; the valve core rotating shaft rotates 90 degrees to reach the position of a certain 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) are mutually induced, and a feedback signal is sent out through the signal wire harness to prevent the motor from continuing to rotate, so that the first through hole 131 and the drawing cavity 14 of the target detergent are automatically aligned. The valve core rotating shaft rotates 90 degrees again to reach the position of the other 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 induce, and send a feedback signal through the signal wire harness to prevent the motor from continuing to rotate, so that the first through hole 131 and the pumping cavity 14 of the other target detergent are automatically aligned.

It should be understood that the above embodiment is only one specific way of distributing the inductive elements and the magnetic induction elements. In actual operation, it is only necessary to ensure that the number and positions of the electric sensing elements are consistent with the number and 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 arbitrarily.

S203: automatically putting the detergent, and configuring the motor to execute a rotating action, so that the target detergent enters 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 within the targeted detergent extraction chamber 14, such that the targeted detergent enters the targeted extraction chamber 14; the motor continues to rotate in the opposite direction, so that the detergent in the target pumping and discharging cavity 14 enters the liquid guide cavity corresponding to the liquid detergent;

It should be understood that the motor forward rotation in S202 and the motor reverse rotation in S203 are just one embodiment; in another embodiment the motor in S202 is reversed and in S203 the motor is rotated in forward direction.

Example two

As shown in fig. 1 to 3, a drawing and discharging mechanism for automatically dispensing a liquid detergent, comprising: a main control board, a pumping mechanism body 100, the main control board is configured to execute a computer program of the method for automatically dosing detergent according to any of the above embodiments. The invention provides a pumping mechanism for automatically throwing liquid detergent, which comprises a pumping mechanism body 100 arranged in a feeding box body 200, wherein the pumping 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,,

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 cavities 14; each pumping cavity 14 is provided with a unidirectional discharge port 1244, one side wall of the pumping cavity 14 is unidirectionally communicated with a detergent storage cavity of the feeding box body 200, the other side wall of the pumping cavity is provided with a unidirectional 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 crossing manner or is not communicated with the same liquid guide cavity in a crossing 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 the valve core assembly 12;

After the target drawing cavity 14 is set, the first driving component 15 drives the valve core rotating shaft 13 to rotate to the first through hole 131 to be selectively communicated with the target drawing cavity 14, and the second driving component 16 drives one end of the piston connecting rod component 11 to axially reciprocate in the first through hole 131, so that the pressure in the target drawing cavity 14 is changed, and liquid detergent in the detergent storage cavity which is unidirectionally communicated with the target drawing cavity 14 flows into the target drawing cavity 14 or liquid detergent in the target drawing cavity 14 flows out from the discharge port 1244, and drawing or discharging of the liquid detergent is realized.

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

As shown in fig. 2 and 3, the piston rod assembly 11 includes a piston rod 111 and a piston head 112, the piston rod 111 is a rectangular thin plate, the outline shape of the piston head 111 is identical to that of the first through hole 131, the piston head 111 is attached in the first through hole 131, so that a sealed space is formed between the target extraction 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. Further, at least two rings of piston rubber rings 113 for increasing the tightness are arranged on the periphery of the piston head, the piston rubber rings 113 are tightly attached between the outline of the first through hole 131 and the periphery outer wall of the piston head 112, and the tightness in the pumping cavity 14 is ensured when the piston head 112 reciprocates in the first through hole 131 along with the piston connecting rod 111.

As shown in fig. 1 to 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 the driving 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 cavity 14, and the first through hole 131 where the piston connecting rod assembly 11 is positioned is aligned with the target pumping cavity 14 to pump or press, so that the pressure of the target pumping cavity 14 is changed.

In one embodiment, the second drive assembly 16 is a linear motor coupled to one end of the piston rod assembly 11, directly driving the piston rod 111 to reciprocate within the first throughbore 131 along with the piston head 112.

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 long hole 1111, and one end of the protruding rod 161 is movably disposed in the long hole 1111; the rotation assembly rotates the rotation member to cause the convex rod 161 to perform a circular motion and reciprocate in the long hole 1111 to guide the piston 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 the slot 1111 and can reciprocate along the inner contour direction 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 direction of the slot 1111.

Further, as shown in fig. 4, in the present embodiment, the rotating assembly includes a worm 162 sleeved on the peripheral side of the motor shaft 152, and a worm wheel 163 meshed with the worm 162, wherein the driving gear 153 and the worm wheel 163 are respectively provided with a ratchet wheel 17, the rotation directions of the two ratchet wheels 17 are opposite, and the rotating member is a first ratchet wheel 171 on the worm wheel 163; wherein, the motor 151 rotates the driving motor shaft 152 to drive the worm 162 to rotate, and drives the worm wheel 163 to rotate, so that the convex rod 161 reciprocates in the long hole 1111.

The worm gear 163 is provided with a first ratchet wheel 171, and a first pawl 1631 which is in unidirectional transmission with the first ratchet wheel 171 is arranged in the worm gear 163, so that the worm gear 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 unidirectional 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 direction of the first ratchet wheel 171 and the rotating direction of the second ratchet wheel 172 are opposite.

The first pawl 1631 pushes the first ratchet 171 to rotate only in one direction with the rotation of the worm wheel 163, and the first ratchet 171 cannot rotate in the other direction. The second ratchet wheel 172 applies a force to the second pawl 1531 in only one direction with the rotation of the motor shaft 152, so that the driving gear 153 can rotate only in one direction, but 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, 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 cavity 14. At this time, due to the arrangement of the first ratchet wheel 171 of the worm wheel 163, the rotation of the worm 162 drives the worm wheel 163 to rotate, the first pawl 1631 rotates along with the rotation, and the first ratchet wheel 171 is not contacted with the first pawl 1631, so that the cam 161 eccentrically arranged on the outer surface of the first ratchet wheel mechanism 171 is still and does not perform circular motion, so that the piston link assembly 11 is in a non-working state.

When the motor 151 rotates reversely, the second ratchet 172 rotates together with the motor shaft 152, but the second pawl 1531 does not contact the second ratchet 172, the second ratchet 172 idles with respect to the drive gear 153, and the drive gear 153 does not rotate, so that the spool shaft 13 does not rotate. At this time, the worm 162 drives the worm wheel 163 to rotate, and the first pawl 1631 on the worm wheel 163 rotates to drive the first ratchet wheel 171 to rotate, so that the cam 161 eccentrically disposed on the outer surface of the first ratchet wheel 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 comprises a bevel gear, the bevel gear comprises a driving bevel gear sleeved on the peripheral side of the motor shaft 152 and a driven bevel gear meshed with the driving bevel gear, the driving gear 153 and the driven bevel gear are respectively provided with a ratchet wheel, and the rotation directions of the two ratchet wheels 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.

In one embodiment, as shown in fig. 1, the cross section of the protruding rod 161 is elliptical, the cross section of the long hole 1111 is a rounded rectangle with unequal collar 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 against the outline of the long hole 1111, so as to determine the distance of one-way movement of the piston rod assembly 11 according to the sizes of the protruding rod 161 and the long hole 1111.

The long hole 1111 always covers the circular movement footprint of the male rod 161 during the reciprocating movement of the piston rod assembly 11, so that only the force in the axial direction of the first through hole 131 is applied to the piston rod assembly 11 by the second driving assembly 16. So that a force directed in the circumferential direction of the inner wall of the first through hole 131 is not applied to the piston rod assembly 11, thereby increasing friction between the piston rod assembly 11 and the contour of the first through hole 131 during the reciprocating motion in the first through hole 131, resulting in difficulty or failure of the reciprocating motion of the piston rod assembly 11.

Further, the length direction of the long hole 1111 is perpendicular to the reciprocating direction of the piston rod assembly 11, and the length of the long hole 1111 is required to be minimum. The length of the long hole 1111 is identical to the diameter of the circle in which the boss 161 moves circumferentially, so that the long hole 1111 always covers the circular movement footprint of the boss 161 during the reciprocating movement of the piston rod assembly 11.

The reciprocating direction of the piston connecting rod 111 is parallel to the rotation axis of the motor shaft, so that the design and layout of the structure are facilitated.

In this embodiment, as shown in fig. 2 and 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 the other surface of the movable valve plate 121 opposite to the valve core rotating shaft 13, where the movable valve plate 121 is provided with a second through hole 1211 communicated with the first through hole 131, 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 a pumping cavity 14; wherein, the rotation of the spool rotation shaft 13 drives the movable valve plate 121 to rotate relative to the fixed valve plate 122 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 cavity 14. In the present 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 communicated with the first pumping and discharging cavity 141, the second pumping and discharging cavity 142 and the third pumping and discharging cavity 143 in a one-to-one correspondence manner. 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 extraction cavity 14 is selected, the blind hole 1212 is moved to cover the third through holes 1221 communicated with the target extraction cavity 14. Further, the first through hole 131 coincides with the third through hole 1221 central axis.

In yet another embodiment, the number of 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 extraction chambers 14 targeting the extraction chamber 14, such as the first extraction chamber 141 and the second extraction chamber 142. For example, the two blind holes 1212 may have identical shapes and sizes, and the two blind holes 1212 may be connected to the two third through holes 1221 at the same time, or one blind hole may be connected to one third through hole 1221, and the other blind hole 1212 may be in contact with a surface of the fixed valve plate 122 other than the third through hole 1221. For another example, the plurality of third through holes 1221 provided on the fixed valve plate 121 are respectively arranged on two circular paths with different diameters, the lengths of the two blind holes 1212 are different, and along with the rotation of the movable valve plate 121, the two blind holes 1212 can respectively cover one third through hole 1221 arranged on the circular paths with different diameters.

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

In one embodiment, three extraction chambers 14 are disposed within the housing 21 of the cartridge body 200.

In an embodiment, as shown in fig. 2 and 3, the valve core assembly 12 further includes a fixing member 124 having one surface attached to the fixed valve plate 121, where the fixing member 124 is provided with three pumping chambers 14, i.e., a first pumping chamber 141, a second pumping chamber 142, and a third pumping chamber 143, which are respectively connected to three third through holes 1221. The drawing cavity 14 is in one-way communication with a detergent storage cavity of the cartridge body 200 through a one-way valve (not shown), and a one-way valve is provided at a discharge port 1244 of the drawing cavity 14. The discharge port 1244 is aligned with the drainage lumen, and fluid in the drainage lumen may flow into the drainage lumen, while fluid in the drainage lumen may not flow into the drainage lumen 14. In one embodiment, each drainage lumen 14 is in one-way communication with its corresponding drainage lumen via a one-way valve. In yet another embodiment, each pumping chamber 14 is separately disposed from its corresponding liquid guiding chamber, that is, the pumping chamber 14 is not connected to the liquid guiding chamber, and the side of the pumping chamber 14 with the one-way valve is aligned to the opening of the liquid guiding chamber, so that the liquid in the pumping chamber 14 can be discharged into the liquid guiding chamber under the action of the piston-connecting rod assembly.

The drawing cavity 14 is arranged in the fixing piece 124, the position relation between the fixing piece 124, the movable valve plate 121 and the fixed valve plate 122 is relatively easy to determine, all parts are easy to align during assembly, and the drawing cavity 14 is convenient to align during automatic throwing. During automatic feeding, the three third through holes 1221 on the fixed valve plate 122 are aligned with the first drawing cavity 141, the second drawing cavity 142 and the third drawing cavity 143 on the fixed member, the valve core rotating shaft 13 is driven by the first driving component 15 to rotate so as to drive the moving valve plate 121 to rotate until the blind holes 1212 on the moving valve plate 121 are communicated with the third through holes 1221 communicated with the target drawing cavity 14, at this time, the first through holes 131, the second through holes 1211, the blind holes 1212 and the third through holes 1221 communicated with the target drawing cavity 14 are in a state of being communicated with each other in sequence, and then the piston connecting rod component 11 is driven by the second driving component 16 to reciprocate in the first through holes 131 so as to change the pressure in the target drawing cavity 14, and then liquid detergent is drawn from the target detergent storage cavity into the target drawing cavity 14 or discharged from the target drawing cavity 14 into the target liquid guide cavity, so that the feeding of the liquid detergent can be controlled accurately. As shown, the target extraction chamber 14 is a first extraction chamber 141.

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

In an 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 all circular. The number of turns of the motor 151 required for communication between the blind hole 1212 of the movable valve plate 121 and the third through hole 1221 of the fixed valve plate 122 is conveniently calculated, and the alignment of the blind hole 1212 with the third through hole 1221 of the suction chamber 14 communicating with the target is conveniently controlled.

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

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

The fixing member 124 has a plurality of third grooves 1242 with openings on two sides, and a plurality of fastening members 1251 fastened to the third grooves 1242 are disposed on a surface of the fixing sleeve 125. The number of the third grooves 1242 and the number of the snap fasteners 1251 are three. The three third grooves 1242 are uniformly distributed along the circumference of the fixing member 124, so that the fixing force of the fastening member 1251 to the fixing member 124 is uniformly distributed, and the fixing is more stable. The fixing sleeve 125 and the fixing piece 124 are in snap connection to form a relatively sealed accommodating cavity, and the movable valve plate 121, the fixed valve plate 122 and the connecting piece 123 are all positioned in the accommodating cavity formed by the fixing sleeve 125 and the fixing piece 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 space size of the pumping chamber 14 and increase the amount of change of the liquid detergent during one pumping or discharging of the pumping mechanism body 100.

As shown in fig. 5 and 6, the discharge port 1244 is disposed on a side wall of the drainage cavity 14 corresponding to the liquid guiding cavity, and a one-way valve for one-way communication between the drainage cavity 14 and the liquid storing cavity is disposed at a port of the suction port 1243, and a one-way valve for one-way liquid communication between the drainage cavity 14 and the liquid guiding cavity is disposed at a port of the discharge port 1244. The one-way valve opens or closes as the pressure within the evacuation lumen 14 changes. That is, the pressure difference between the two sides of the pumping chamber 14 and the detergent storage chamber and the pressure difference between the two sides of the discharge port 1244 are higher than the corresponding set pressure difference of the check valve, so that the liquid detergent in the detergent storage chamber can flow into the pumping chamber 14 or the liquid detergent in the pumping chamber 14 can flow out. When the pressure difference of the two sides of the one-way valve is lower than the set pressure difference, the one-way valve is closed, and no liquid communication is carried out between the two cavities.

As shown in fig. 2, a sealing ring 126 is disposed at a contact portion between the fixing member 124 and the housing 21 of the cartridge body 200, and a sealing ring (not shown) is disposed at a contact portion between the fixing member 124 and the fixed valve plate 122, so as to ensure tightness of the extraction cavity 14.

It should be understood that, as shown in fig. 5, the target pumping chamber 14 represents pumping chambers respectively communicated with a detergent storage chamber corresponding to the automatic liquid detergent injection and a liquid guide chamber corresponding to the automatic liquid injection, at this time, the target pumping chamber 14 is communicated with the blind hole 1212 through the third through hole 1221, and thus 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 chamber 14. As shown in fig. 6, the two pumping chambers 14 are not in communication with the blind bore 1212, and thus the piston rod 111 reciprocates within the first through bore 131 without affecting the pressure within the two pumping chambers 14.

As shown in fig. 10, the valve core assembly 12 further includes an electromagnetic induction element, and precise control of the steering angle of the valve core assembly is achieved through an electromagnetic induction principle.

A pump mechanism for automatically dispensing liquid detergent, comprising: the automatic detergent feeding device comprises a main control board and a drawing and discharging mechanism body 100, wherein the main control board executes the method for automatically feeding the detergent, and the drawing and discharging mechanism body 100 comprises a piston, a rotating device and a motor; wherein 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 a piston; the motor drives the rotating device to rotate until the piston is selectively communicated with the drawing and discharging cavity 14 of the target, the motor drives the piston to axially reciprocate in the rotating device, and the pressure in the drawing and discharging cavity 14 of the target is changed, so that the detergent in the detergent storage cavity which is unidirectionally communicated with the drawing and discharging cavity 14 of the target flows into the drawing and discharging cavity 14 of the target or the detergent in the drawing and discharging cavity 14 of the target flows out from the discharge port 1244, and drawing 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, wherein 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 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, until the blind hole 1212 is communicated with the third through hole 1221 communicated with the target pumping chamber 14, so that the first through hole 131 is communicated with the target pumping chamber 14.

The valve core assembly 12 also includes a magnet assembly for electromagnetic induction and electronic components for electromagnetic induction. In order to facilitate accurate control of the magnet device and the electronic component, the magnet device and the electronic component are disposed nearby. In one embodiment, the magnetic induction element 18 is disposed on the rear end of the driven gear 154 on the spool shaft 13, and the magnetic induction element 18 is fixed on the spool shaft 13 through the end cap 181. The end cap 181 may be integrally formed or assembled with the spool shaft 13. The end cap 181 has a shape similar to that of the magnetic induction element 18 to accommodate the magnetic induction element 18. When the magnetic induction element is a cylinder, the end cap 181 is a hollow cylinder. In one embodiment, the end cap 181 is provided with a notch for the induction element 18 to induce interaction with the induction element 191 when moving to the position of the induction element 191. The upper case of the valve core assembly 12, i.e. the connecting piece 123 of the valve core assembly, is provided with a printed circuit board 19 with a signal wire harness 192, and a plurality of electric sensing elements 191 are arranged on the printed circuit board 19. In one embodiment, the printed circuit board 19 is sleeved on the spool shaft 13 and is fixed on the connecting member 123, i.e. between the end cap 181 and the connecting member 123. The printed circuit board 19 is a board structure. The number of the electric sensing elements 191 is related to the number and the positions 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 are in one-to-one correspondence with the positions of the three third through holes 1221 on the fixed valve plate. 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 cavities 14 is realized.

When the control panel gives a signal instruction, the motor rotates positively, the valve core rotating shaft 13 rotates, the magnetic induction element 18 fixed on the valve core rotating shaft rotates at the same angular velocity, the printed circuit board 19 fixed on the connecting piece 123 at a fixed distance from the magnetic induction element 18 also rotates at the same angular velocity, when the valve core rotating shaft 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 sense each other, and a feedback signal is sent out through a signal wire to prevent the motor from continuously rotating, so that the self-defined angle accurate rotation is realized, the positioning of the precise hole is realized between the blind hole 1212 on the movable valve plate 121 fixed on the valve core rotating shaft 13 and the third through hole 1221 on the fixed valve plate 122, and the precise selection of different drainage cavities 14 is realized.

Example III

As shown in fig. 7, 8 and 9, the present invention provides a cartridge for automatically dispensing liquid detergent, comprising a cartridge body 200, wherein the cartridge body 200 comprises a housing 21, a plurality of detergent storage chambers (not shown) disposed in the housing 21, and a pumping mechanism body 100 as described above, and one side wall of each pumping chamber 14 of the pumping mechanism body 100 is in unidirectional communication with one detergent storage chamber.

In an embodiment, the feeding box body 200 further includes a plurality of liquid guiding cavities (not shown in the figure), the discharge port 1244 of each pumping cavity 14 is communicated with one liquid guiding cavity, and the plurality of pumping cavities 14 are not communicated with the same detergent storage cavity in a crossing manner or are not communicated with the same liquid guiding cavity in a crossing manner. In this embodiment, the number of the detergent storage chambers, the liquid guiding chamber and the drawing 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 externally arranged in the cavity 211, and the shape and size of the cavity 211 are matched with those of the outer contour of the valve core assembly 12 arranged in the cavity 211. The retaining sleeve 125 of the valve core assembly 12 is fixedly connected within the cavity 211. The first and second drive assemblies 15, 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 simplified illustration, and the specific structure of the detergent storage and liquid guiding cavities is not specifically shown, and the detergent storage and liquid guiding cavities may be included in the housing shown by reference numeral 21 or may be outside the housing shown by reference numeral 21, and it will be apparent to those skilled in the art that modifications and technical feature substitutions may be made without departing from the principles of the present invention, and these modifications and technical feature substitutions are all considered to be within the scope of the present invention.

Example IV

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

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

In use, for example, the liquid laundry detergent is required to be automatically put in, the motor rotates forward, and the first driving component 15 is driven to drive the valve core 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 drawing cavity 14 of the object of unidirectional communication with the detergent storage cavity for storing the liquid laundry detergent.

The motor is reversely rotated to drive the second driving component 16 to drive the piston connecting rod component 11 to move in a single way in the first through hole 131, so that the pressure in the target pumping and discharging cavity 14 is reduced, and the pressure difference between the pressure in the detergent storage cavity and the pressure in the target pumping and discharging cavity 14 is higher than the pressure difference set value between the pumping and discharging cavity 14 of the target and the two sides of the one-way valve of the detergent storage cavity, wherein the pressure difference set value is formed by the one-way connection of the pressure in the target pumping and discharging cavity 14 and the pressure difference set value is achieved. The motor continues to rotate reversely, the second driving component 16 is driven to drive the piston connecting rod component 11 to move back in the other direction in the first through hole 131, the pressure in the target drawing cavity 14 is increased until the pressure in the target drawing cavity 14 is higher than the pressure difference value in the liquid guide cavity to reach the pressure difference set value at two sides of the one-way valve arranged at one side of the liquid detergent containing cavity corresponding to the drawing cavity 14 of the target, and the laundry detergent in the drawing cavity 14 of the target enters the liquid guide cavity corresponding to the laundry detergent. And the motor continuously rotates reversely until the liquid quantity of the washing liquid in the liquid guide cavity reaches the standard washing quantity, the motor stops rotating, and the washing machine operates washing operation.

The pumping mechanism for automatically throwing the liquid detergent can be used for automatically throwing two, three or more liquid detergents. In a preferred scheme, the worm gear transmission or bevel gear transmission is matched with a pair of meshing gears, so that the two operations of selecting a target pumping cavity and pumping and discharging can be completed through forward rotation or reverse rotation of one motor 151, and the motor, the worm gear or a pair of bevel gears, the driving gear, the driven gear and the piston connecting rod assembly are all arranged along the axial direction of the pumping and discharging cavity, so that the arrangement is compact and exquisite, only a certain assembly space is reserved transversely for the washing machine, the longitudinal space of the washing machine is not occupied, the installation of other structures in the washing machine is not influenced, namely, the structure is simple, the occupied space is small, and the device is suitable for equipment needing pumping and discharging liquid detergent in various fields. In addition, through the shape and the size of control protruding pole, slot hole, first through-hole, second through-hole, blind hole, third through-hole, drainage chamber, the volume of automatic input liquid detergent of accurate control.

It will be appreciated by those skilled in the art that 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. Moreover, one or more embodiments of the present description can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use, and further modifications may be readily made by those skilled in the art without departing from the general concepts defined by the claims and the equivalents thereof, and therefore the invention is not limited to the specific details and examples shown herein.

Claims

1. A method of automatically dosing a detergent, the method being effected by a pump mechanism for automatically dosing a liquid detergent, the pump mechanism comprising:

the piston connecting rod assembly (11), the valve core assembly (12), the first driving assembly (15) and the second driving assembly (16);

the piston connecting rod assembly comprises a piston connecting rod (111) and a piston head (112), one end of the piston connecting rod is connected with the piston head, and the other end of the piston connecting rod is connected with the second driving assembly;

the first driving assembly (15) comprises a motor (151) with a motor rotating shaft (152) at one end, a driving gear (153) coaxially arranged on the motor rotating shaft (152) and a driven gear (154) meshed with the driving gear (153); the motor (151) rotates the driving motor rotating shaft (152) to drive the driving gear (153) to rotate together with the driven gear (154), so that the valve core rotating shaft (13) can rotate until the first through hole (131) is communicated with the target pumping cavity (14), and the first through hole (131) where the piston connecting rod assembly (11) is positioned is aligned with the target pumping cavity (14) to pump or press, so that the pressure of the target pumping cavity (14) is changed;

The second driving assembly (16) comprises a rotating assembly, a rotating part and a protruding rod (161) eccentrically arranged on one surface of the rotating part, one end of the piston connecting rod (111) is provided with a long hole (1111), and one end of the protruding rod (161) is movably arranged in the long hole (1111); the rotating component drives the rotating component to rotate, so that the convex rod (161) performs circular motion and reciprocates in the long hole (1111) to guide the piston connecting rod component (11) to reciprocate in the first through hole (131);

the rotating assembly comprises a worm (162) sleeved on the periphery of the motor rotating shaft (152), a worm wheel (163) meshed with the worm (162), a driving gear (153) and the worm wheel (163) are respectively provided with a ratchet wheel (17), and the rotating directions of the two ratchet wheels (17) are opposite; the worm wheel 163 is provided with a first ratchet wheel (171), a first pawl (1631) which is in unidirectional transmission with the first ratchet wheel (171) is arranged in the worm wheel (163), 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 unidirectional 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 direction of the first ratchet wheel (171) and the rotating direction of the second ratchet wheel (172) are opposite;

When the motor rotates positively, the motor rotating 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, the driven gear (154) to rotate, and finally the valve core rotating shaft (13) to the first through hole (131) to be communicated with the target drawing cavity (14); when the motor (151) rotates reversely, the second ratchet wheel (172) rotates along with the motor rotating shaft (152), but the second pawl (1531) is not contacted with the second ratchet wheel (172), the second ratchet wheel (172) idles relative to the driving gear (153), the driving gear (153) does not rotate, and the valve core rotating shaft (13) does not rotate; the worm (162) drives the worm wheel (163) to rotate, a first pawl (1631) on the worm wheel (163) rotates to drive the first ratchet wheel (171) to rotate, so that a convex rod (161) eccentrically arranged on the outer surface of the first ratchet wheel (171) performs circular motion and reciprocates in the long hole (1111), and the piston connecting rod assembly (11) reciprocates in the first through hole (131);

the method specifically comprises the following steps:

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

According to the target detergent, a motor is configured to execute a rotating action, and the motor drives a rotating device to move so as to switch the detergent, so that a piston is communicated with a drawing cavity of the target detergent under the action of the rotating device;

automatically putting the detergent, configuring a motor to execute 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 dispensing detergent according to claim 1, wherein when the motor is configured to perform a rotating action according to a 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 core 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 cavity (14).

3. A method of automatically dispensing detergent according to claim 2, wherein the drive motor is reversed during automatic dispensing of detergent to reduce the pressure in the extraction chamber (14) of the target detergent so that the target detergent enters the target extraction chamber (14); the motor continues to rotate in the opposite direction so that the detergent in the target pumping and discharging cavity (14) enters the liquid guide cavity corresponding to the target laundry detergent.

4. The method for automatically dispensing detergent as set forth in claim 1, further comprising, before the step of automatically dispensing the detergent: and acquiring weight information of the clothes to determine the dosage and/or the dosage time of the detergent.

5. The method of automatically dispensing detergent according to claim 1, further comprising, before the step of automatically dispensing detergent, detecting a remaining quantity of detergent in the liquid guide chamber to control whether the automatic dispensing is operated, and stopping the automatic dispensing and giving a prompt to a user if the remaining quantity of detergent is insufficient.

6. The method of automatically dispensing detergent as set forth in claim 1, further comprising, in the step of automatically dispensing detergent, obtaining a flow coefficient of the fluid flowing into the washing machine from the liquid guiding chamber, comparing the flow coefficient of the fluid with a target flow coefficient, and if the flow coefficient is smaller than the target flow coefficient, stopping the automatic dispensing and giving a prompt to the user.

7. The method for automatically dispensing detergent as set forth in claim 2, wherein when the motor performs a rotating action; 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 drawing cavity of the target detergent.

8. The method for automatically dispensing detergent as set forth in claim 7, wherein when the motor performs a rotating 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 (13) and the electronic induction element on the valve core assembly (12) shell are mutually induced, and send out a feedback signal through the 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 cavity of the target detergent.

9. A pump mechanism for automatically dispensing liquid detergent, comprising: a main control board, a drawing and placing mechanism body (100), characterized in that the main control board is configured to execute a computer program of the method for automatically putting in detergent according to any one of claims 1-8, the drawing and placing mechanism body (100) comprises a piston, a rotating device, a motor; wherein,,

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 drawing and discharging cavity (14) of the target, the motor drives the piston to axially reciprocate in the rotating device, and the pressure in the drawing and discharging cavity (14) of the target is changed, so that the detergent in the detergent storage cavity which is unidirectionally communicated with the drawing and discharging cavity (14) of the target flows into the drawing and discharging cavity (14) of the target or the detergent in the drawing and discharging cavity (14) of the target flows out from the discharge port (1244), and drawing or discharging of the detergent is realized.

10. The pumping and draining mechanism for automatically putting in liquid detergent according to claim 9, characterized in that 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 surface of the movable valve plate (121) opposite to the valve core rotating shaft (13), a first through hole (131) is axially arranged on the valve core rotating shaft (13), 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 plurality of third through holes (1221) are respectively communicated with the pumping cavity (14); wherein,,

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 the target pumping cavity (14), so that the first through hole (131) is communicated with the target pumping cavity (14).

11. The pumping mechanism for automatically dispensing liquid detergent according to claim 10, wherein the valve core rotating shaft (13) comprises a magnetic induction element (18), the valve core assembly (12) comprises a printed circuit board (19) on a shell, the printed circuit board comprises an electric induction element (191), and the distribution of the electric induction element (191) on the printed circuit board (19) is consistent with the distribution of the third through holes (1221) on the fixed valve plate (122); the valve core rotating shaft (13) rotates to an angle to enable the magnetic induction element (18) and the electronic induction element (191) on the printed circuit board to mutually induce, and a feedback signal is sent out through the signal wire harness (192) to control the first through hole (131) to be communicated with the target pumping cavity (14).

12. The pumping mechanism for automatically throwing in liquid detergent according to claim 11, wherein the valve core rotating shaft (13) is provided with an end cap (181), and the magnetic induction element (18) is fixed on the valve core rotating shaft (13) through the end cap (181); a notch is arranged on one side of the end cap (181) close to the valve core assembly (12) shell; 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) is mutually induced with the electric induction element (191) on the printed circuit board (19) through the notch on the end cap (181).