CN115110251A

CN115110251A - Washing control method of pulsator washing machine without outer barrel and washing machine

Info

Publication number: CN115110251A
Application number: CN202210837333.4A
Authority: CN
Inventors: 江艳; 胡蓉; 唐阳洋
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-09-27

Abstract

The invention provides a washing control method of an outer-barrel-free pulsator washing machine and the washing machine, relates to the technical field of washing machines, and aims to realize accurate control of a water discharge valve plug extending into a water discharge port of an inner barrel. The control method comprises the following steps: controlling the driving device to act, and enabling the drainage valve plug connected with the driving device to contract towards the direction far away from the inner cylinder; the driving device contacts the microswitch D, the driving device stops acting, and the drainage valve plug retracts to the dewatering level; controlling the inner cylinder to rotate to a matching position; the driving device is controlled to act, and the drain valve plug extends upwards under the action of the elasticity of the drain valve plug; and detecting whether the drain valve plug releases the contact detection device B before the driving device stops acting, and if so, judging that the drain valve plug is inserted into the drain port of the inner cylinder. Before the inner barrel is controlled to rotate to the matching position, the following steps are also included: the driving device is controlled to act, and the drain valve plug extends upwards under the action of the elasticity of the drain valve plug; the driving device releases the contact detection device A, the driving device stops acting, and the drain valve plug is located at the positioning position.

Description

Washing control method of pulsator washing machine without outer barrel and washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a washing control method of an outer-barrel-free pulsator washing machine and the washing machine.

Background

With the progress of science and technology, the automation level of human life is higher and higher, and daily housework is gradually replaced by machines from manpower. The clothes washing equipment is used as a common household appliance in daily life, and brings great convenience to the life of people.

The washing machine is designed in the aspect of healthy washing, and the healthy washing mainly adopts a structure for reducing dirt and dirt, so that the washing machine without the outer barrel impeller is provided.

The piston is a drainage structure of the washing machine without the outer barrel impeller, when the washing machine without the outer barrel impeller is in a washing state, the piston extends into a drainage port of an inner barrel of the washing machine and is in sealing fit with the drainage port, when the washing machine without the outer barrel impeller is in a dehydration state, the piston is separated from the drainage port, and the inner barrel rotates at a high speed. The existing piston position control is inaccurate, and the situation that the piston is not sealed with a water outlet when the washing machine without the outer barrel impeller is in a washing state can occur.

The invention aims to provide a washing control method of a pulsator washing machine without an outer cylinder, which is beneficial to realizing the accurate control of a piston.

Disclosure of Invention

The invention aims to provide a washing control method of an impeller washing machine without an outer barrel and the washing machine, which are used for realizing accurate control of a water discharge valve plug extending into a water discharge port of the inner barrel. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a washing control method of a pulsator washing machine without an outer barrel, which comprises the following steps: controlling the driving device to act, wherein the drain valve plug connected with the driving device contracts in the direction far away from the inner cylinder; the driving device triggers a signal D, the driving device stops acting, and the drainage valve plug retracts to a dewatering level; controlling the inner cylinder to rotate to a matching position; the driving device is controlled to reversely act, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug; and judging whether the B signal is triggered or not in the upward extending process of the drainage valve plug, if so, judging that the drainage valve plug is inserted into the water outlet of the inner cylinder.

Further, as for the driving device triggering D signal, the stopping of the driving device specifically includes: the driving device contacts the microswitch D; the driving device stops acting; wherein the microswitch D is connected with the driving device circuit in series.

Further, the control driving device acts reversely, the drain valve plug extends towards the inward direction under the action of the elastic force of the drain valve plug, and the specific content is as follows: the driving device is controlled to act, and the drain valve plug extends upwards under the action of the elasticity of the drain valve plug; the driving device contacts the microswitch C; when the state change signal of the microswitch C is detected, controlling the driving device to stop acting; before the driving device stops, whether the drainage valve plug triggers a B signal or not is judged.

Further, before controlling the inner cylinder to rotate to the matching position, the following contents are also included: the driving device is controlled to reversely act, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug; when the drainage valve plug extends upwards, a signal A is triggered, the driving device stops acting, and the drainage valve plug is located at a locating position; when the inner cylinder rotates to the matching position, the drainage valve plug at the positioning position is contacted with the blocking structure on the inner cylinder, so that the drainage valve plug and the drainage port of the inner cylinder are positioned.

Further, before controlling the inner cylinder to rotate to the matching position, the method specifically comprises the following steps: controlling a main driving device to drive the inner cylinder to rotate to a pre-matching position; controlling the drain valve plug to adjust to the positioning position; and controlling the inner cylinder to rotate to a matching position.

Further, the main driving device drives the inner cylinder to rotate to a pre-matching position, and the method comprises the following steps: the main driving device drives the inner cylinder to rotate at a low speed and counts the rotating time T of the inner cylinder ₁ (ii) a When T is ₁ ≤X _S When a pre-in-place signal is detected, controlling the main driving device to stop rotating; if it isT ₁ >X _S If the pre-in-place signal is not detected yet, reporting a fault; wherein, X _S The time for the inner cylinder to rotate for one circle at low speed.

Further, the control of the rotation of the inner cylinder to the matching position includes the following steps: controlling the main driving device to drive the inner cylinder to rotate; and when the main driving device rotates for a certain time, controlling the main driving device to stop rotating.

Further, the control of the rotation of the inner cylinder to the matching position specifically includes the following: detecting a pre-in-place signal; if the pre-in-place signal is not detected, controlling the inner cylinder to continue rotating Y _S Then stopping; if the pre-in-place signal is detected, controlling the inner cylinder to rotate and timing the inner cylinder rotation time T ₂ When T is ₂ ≤Y _S When the pre-in-place signal disappears, the inner cylinder is controlled to rotate continuously _S Then stop when T ₂ >Y _S If the pre-in-place signal is not detected to disappear, a fault is reported.

Further, comprising: recognizing a washing mode command; detecting whether the drain valve plug is in a washing position; if not, adjusting the drain valve plug to a washing position.

Further, the adjusting the drain valve plug to the washing position includes the following steps: detecting whether the drain valve plug is in a dewatering level; if yes, directly adjusting the drain valve plug to a washing position; if not, the drainage valve plug is controlled to contract to a dehydration position in the direction away from the inner cylinder, and then the drainage valve plug is adjusted to a washing position.

Further, the adjusting the drain valve plug to the washing position includes the following steps: controlling the drain valve plug to extend upwards; detecting whether the drain valve plug is positioned at a washing position; if the water draining valve plug is in the washing mode, the water draining valve plug is controlled to contract to the dewatering position in the direction away from the inner cylinder, and then the water draining valve plug is adjusted to the washing position and then enters the washing mode.

The present invention provides a washing machine, comprising: one or more memories to store executable programs; one or more processors, configured to execute the executable program in the memory, so as to implement the washing control method of the pulsator washing machine without outer tub.

The invention provides a washing control method of a pulsator washing machine without an outer cylinder, which comprises the following steps: controlling the driving device to act, and enabling the drainage valve plug connected with the driving device to contract towards the direction far away from the inner cylinder; the driving device triggers the signal D, the driving device stops acting, and when the drainage valve plug is positioned at the dewatering level, the drainage valve plug is separated from a drainage port on the inner drum of the washing machine; controlling the inner cylinder to rotate to a matching position; controlling the driving device to act so as to enable the drain valve plug to extend upwards; and if so, judging that the drainage valve plug is inserted into the water outlet of the inner cylinder. The piston rod of drive arrangement and drainage valve plug is connected through the haulage rope, and during drive arrangement moved, can pull the piston rod and make the drainage valve plug to keeping away from the direction shrink of inner tube, when drive arrangement moved in the opposite direction, the drainage valve plug can be extended to the direction that is close to the inner tube under self elasticity effect. Because the driving device is flexibly connected with the drainage valve plug through the traction rope, when the driving device acts in the opposite direction to stop, at the moment, the drainage valve plug is not inserted into a drainage hole on the inner cylinder (the drainage valve plug is abutted against the bottom of the inner cylinder, and the traction rope of the drainage valve plug and the driving device is loosened), whether the drainage valve plug extends into a drainage outlet or not is detected, when the drainage valve plug extends upwards, a signal B is triggered, and the drainage valve plug is judged to be inserted into the drainage outlet of the inner cylinder.

The preferred technical scheme of the invention can at least produce the following technical effects:

the microswitch D is a normally closed microswitch and is connected with a circuit of the driving device in series, when the microswitch D is disconnected, the driving device stops acting, and the driving device can be stopped in time, so that the risk that the traction rope is pulled off is reduced;

the drainage valve plug is controlled to extend to the positioning position firstly, so that the drainage valve plug is matched with the blocking structure on the flange conveniently, namely when the drainage valve plug is positioned with the positioning position, the blocking structure is contacted with the drainage valve plug, the positioning of the drainage valve plug and the water outlet of the inner cylinder is realized, and the drainage valve plug is controlled to be inserted into the water outlet of the inner cylinder accurately conveniently;

before the upwards extension of drainage valve plug reaches the locating position, adjust the position of inner tube earlier, adjust the inner tube to the position of pre-mating promptly earlier, if do not adjust the position of inner tube, but directly upwards extend the drainage valve plug to the locating position, the drainage valve plug that probably appears leads to the drainage valve plug can not continue upwards to extend with blockking structure looks butt, leads to unable normal work, consequently, upwards extends the drainage valve plug to the locating position before, adjusts inner tube to the position of pre-mating earlier.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1: a schematic cross-sectional view of a drain valve plug;

FIG. 2: another schematic cross-sectional view of the drain valve plug;

FIG. 3: the washing state structure diagram of the pulsator washing machine without the outer cylinder (the drain valve plug is positioned at the washing position);

FIG. 4: a partial enlarged view at a in fig. 3;

FIG. 5: a cross section of the pulsator washing machine without the outer cylinder in a positioning state (the drain valve plug is positioned at a positioning position);

FIG. 6: a partial enlarged view at B in fig. 5;

FIG. 7: a cross section view of the pulsator washing machine without an outer cylinder in a dehydration state (a drain valve plug is positioned at a dehydration level);

FIG. 8: a partial enlarged view at C in fig. 7;

FIG. 9: a schematic cross-sectional view of the sealing rubber;

FIG. 10: a structure diagram of a flange;

FIG. 11: the inner cylinder is positioned at the pre-matching position;

FIG. 12: the inner cylinder is positioned at the matching position;

FIG. 13: a flow chart of a common washing mode;

FIG. 14: entering a dehydration state flow chart;

FIG. 15: entering a washing state flow chart;

FIG. 16: positioning procedure 1 flow chart;

FIG. 17: positioning program 2 flow chart;

FIG. 18: general wash mode another flow diagram.

In the figure, 1, sealing rubber; 101. a rubber positioning column; 102. the rubber and the casting support are matched with the groove; 103. the rubber and the water receiving basin are installed and matched with the groove; 104. the matching position of the rubber and the casting support; 2. metal wrapping; 3. a spring; 4. a piston rod; 5. a bearing; 6. casting a bracket; 7. a microswitch B; 8. an output shaft of the motor; 9. a microswitch C; 10. a cam; 11. a microswitch D; 12. a motor bracket; 13. a hauling rope; 14. a microswitch A; 15. a motor bracket rear cover; 16. a positive and negative rotation motor; 17. mechanical protection; 18. is a balance ring; 19. an inner barrel; 20. a water receiving basin; 21. a flange; 22. a magnetic induction switch; 23. a water discharge port; 24. magnet, 25, blocking mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The piston is a drainage structure of the washing machine without the outer barrel impeller, when the washing machine without the outer barrel impeller is in a washing state, the piston extends into a drainage port of an inner barrel of the washing machine and is in sealing fit with the drainage port, when the washing machine without the outer barrel impeller is in a dehydration state, the piston is separated from the drainage port, and the inner barrel rotates at a high speed. The invention aims to provide a washing control method of an impeller washing machine without an outer cylinder, which is used for realizing the accurate control of a water discharge valve plug extending into a water outlet of the inner cylinder. The method comprises the following specific steps:

example 1:

the invention provides a washing control method of a pulsator washing machine without an outer cylinder, which comprises the following steps: controlling the driving device to act, and enabling the drainage valve plug connected with the driving device to contract towards the direction far away from the inner cylinder; when the driving device is triggered to the signal D, the driving device stops acting, the drainage valve plug retracts to the dewatering level, and when the drainage valve plug is positioned at the dewatering level, the drainage valve plug is separated from the drainage port on the inner drum 19 of the washing machine; controlling the inner cylinder to rotate to a matching position; the driving device is controlled to reversely act, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug; and if so, judging that the drainage valve plug is inserted into the water outlet of the inner cylinder. The piston rod of drive arrangement and drainage valve plug is connected through the haulage rope, and during drive arrangement moved, can pull the piston rod and make the drainage valve plug to keeping away from the direction shrink of inner tube, when drive arrangement moved in the opposite direction, the drainage valve plug can be extended to the direction that is close to the inner tube under self elasticity effect. Because drive arrangement and drainage valve plug are through haulage rope flexonics, when drive arrangement opposite direction action to when stopping, at this moment, probably appear that the drainage valve plug does not insert the wash port on the inner tube 19 (drainage valve plug butt is in the bottom of inner tube, and drainage valve plug and drive arrangement's haulage rope are lax), consequently, need detect whether the drainage valve plug stretches into the outlet, trigger the B signal when the drainage valve plug upwards stretches out, then judge the outlet that the drainage valve plug inserted the inner tube. By the control method provided by the invention, the action of the drain valve plug can be controlled, so that the normal work of the pulsator washing machine without the outer barrel can be ensured.

With regard to whether the drain plug is able to trigger to the B signal when extended upward, the following is illustrated: the drainage valve plug cooperatees with detection device B, and when the drainage valve plug upwards extended, if let go of detection device B, then judge the outlet that the drainage valve plug inserted the inner tube, otherwise, then judge that the drainage valve plug has not inserted the outlet. The detection device B is preferably a normally open microswitch (hereinafter, the microswitch B is referred to as the detection device B), and the B signal is an off signal of the microswitch B.

The method for stopping the driving device by triggering the D signal by the driving device specifically includes: the driving device contacts the microswitch D; the driving device stops operating. The microswitch D is a normally closed microswitch, and is connected in series with the circuit of the drive device, i.e., is off when being pressed, and when the microswitch D is off, the drive device stops operating, and the D signal is a microswitch D off signal.

Regarding the reverse action of the control driving device, the drain valve plug extends towards the direction close to the inner cylinder under the action of the self elastic force, and the specific contents are as follows: the driving device is controlled to act, and the drain valve plug extends upwards under the action of the elasticity of the drain valve plug; the driving device contacts the microswitch C; the controller detects a state change signal of the microswitch C; the controller controls the driving device to stop acting; before the driving device stops, whether the drainage valve plug triggers a B signal or not is detected.

Before the inner barrel is controlled to rotate to the matching position, the following steps are also included: the driving device is controlled to reversely act, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug; when the drain valve plug extends upwards, the signal A is triggered, the driving device stops acting, and the drain valve plug is located at the locating position.

With regard to "the A signal is triggered when the drain valve plug is extended upward", the following is exemplified: the drainage valve plug matches with detection device A, and when the drainage valve plug upwards extended, the detection device A was released, and drive arrangement stopped the action, and the drainage valve plug was located the position location. The detection device a is preferably a normally open microswitch (hereinafter, the microswitch a is used to represent the detection device a), and the a signal is an off signal of the microswitch a.

Regarding earlier control drainage valve plug and stretching out to the locating position, be for the convenience of blocking structure on drainage valve plug and the flange 21 and cooperate, promptly when the drainage valve plug for with the locating position, block structure 25 and contact with the drainage valve plug, realize the location of drainage valve plug and inner tube outlet, the accurate control drainage valve plug of being convenient for inserts the outlet of inner tube.

With respect to the stop structure 25, referring to FIG. 10, there is illustrated a flange 21 attached to the inner cartridge, there being a downwardly projecting stop structure 25 on the flange 21, the stop structure 25 being adapted to contact the drain plug in a seated position when the flange 21 is rotated; in addition, in order to increase the contact area between the blocking structure 25 and the drain valve plug, the surface of the blocking structure 25 contacting the drain valve plug is arranged to be an arc surface.

The present invention provides an embodiment in which the blocking structure 25 is disposed on the flange 21, and the structure of the blocking structure 25 is not limited to the structure illustrated in fig. 10, and other structures are also possible.

Before the inner barrel is controlled to rotate to the matching position, the following contents are specifically included: controlling a main driving device (the main driving device is a main motor, and the main driving device is connected with the inner cylinder and drives the inner cylinder to rotate) to drive the inner cylinder to rotate to a pre-matching position; controlling the driving device to act so as to enable the drain valve plug to extend upwards under the action of the elastic force of the drain valve plug; when the driving device releases and presses the microswitch A, the driving device stops acting, and at the moment, the drainage valve plug is positioned at the positioning position; after the driving device stops acting, the inner cylinder is controlled to rotate to the matching position. When the inner barrel is in the mated position, the drain plug contacts the stop 25 on the flange 21 (flange 21 is connected to inner barrel 19). When the drainage valve plug is detected to retract to a dewatering level, the inner cylinder is controlled to rotate at a low speed to a pre-matching position, then the drainage valve plug is controlled to extend upwards, when the driving device releases and presses the microswitch A, the driving device stops acting, the microswitch A can be a normally-open type microswitch, the default state is the switch disconnection, and the switch is closed after being extruded. Then the main driving device acts to drive the inner cylinder to continue rotating until the inner cylinder rotates to the matching position.

Before the upwards extension of drainage valve plug reaches the locating position, adjust the position of inner tube earlier, adjust the inner tube to the position of cooperateing in advance promptly, if do not adjust the position of inner tube, but directly upwards extend the drainage valve plug to the locating position, the drainage valve plug that probably appears leads to the drainage valve plug can not continue upwards to extend with blockking structure 25 looks butt, leads to unable normal work. Thus, the inner barrel is adjusted to the pre-engagement position prior to extending the drain plug upwardly to the seated position.

The main driving device is controlled to drive the inner cylinder to rotate to the pre-matching position, and the method comprises the following steps: the main driving device drives the inner cylinder to rotate at a low speedRotate and time the inner cylinder rotation time T ₁ (ii) a When T is ₁ ≤X _S When a pre-in-place signal is detected, the main driving device is controlled to stop rotating; if T ₁ >X _S If the pre-in-place signal is not detected, a fault is reported; wherein, X _S The time for rotating the inner cylinder for one circle at low speed is shown.

With respect to the "pre-bit signal", the following is illustrated: can set up magnet 24 on inner tube 19, set up magnetic induction switch 22 on water basin 20, after magnetic induction switch 22 sensed magnet 24, magnetic induction switch 22 closed, and the controller detects magnetism closure signal, puts in place the signal in advance promptly, and the control main drive device stops rotatoryly.

If the inner cylinder 19 rotates for a circle at a low speed, the controller does not receive the magnetic closing signal, which indicates that the magnetic induction switch 22 is damaged, and at this time, a fault prompt is sent out.

The inner cylinder is controlled to rotate to a matching position, and the method comprises the following steps: controlling the main driving device to drive the inner cylinder to rotate; and when the rotation reaches a certain time, controlling the main driving device to stop rotating. The rotation of the inner barrel to the mating position is specifically described as follows:

detecting a pre-in-place signal, and controlling the inner cylinder to continue rotating Y if the pre-in-place signal is not detected _S Stopping, and judging that the inner cylinder reaches the matching position;

if the pre-in-place signal is detected, the inner cylinder is controlled to rotate and the rotation time T of the inner cylinder is counted ₂ When T is ₂ ≤Y _S When the pre-in-place signal disappears, the inner cylinder is controlled to continue rotating Y _S Then stopping, at the moment, judging that the inner cylinder has reached the matching position, and when T is reached ₂ >Y _S If the pre-in-place signal is not detected to disappear, a fault is reported.

Referring to fig. 11, the position relationship of the magnetic induction switch 22, the magnet 24, the blocking mechanism 2, etc. is illustrated, and fig. 11 illustrates that the inner cylinder 19 is located at the pre-fitting position, at this time, the magnetic induction switch 22 is close to the magnet 24; fig. 12 illustrates the upper inner barrel 19 in the engaged position, in which the magnetic switch 22 is away from the magnet 24 and the barrier structure 2 is in contact with the drain plug (in the seated position).

With respect to Y _S Is prepared fromPre-calculating to obtain the value stored in the system, and if no fault occurs, rotating the inner cylinder from the pre-matching position to the matching position at a low speed _S It is then possible to achieve that the blocking structure 25 is in contact with the drain valve plug in the seated position.

After the drainage valve plug is in the locating position, when the control inner tube is rotatory to the cooperation position, detect the signal that puts in place in advance earlier because, inner tube 19 reaches behind the cooperation position in advance, probably because inertia, continues to rotate, leads to magnetic induction switch 22 to keep away from the magnet on the inner tube for lead to magnetic induction switch 22 disconnection. Therefore, when the inner cylinder is controlled to rotate to the matching position, whether a pre-positioning signal (a magnetic induction switch closing signal) exists or not is judged firstly.

After the user selects the general washing mode, the control method comprises the following steps: recognizing a washing mode command; detecting whether the drain valve plug is in a washing position or not; if not, adjusting the drain valve plug to the washing position. When the washing mode is carried out, whether the drainage valve plug is positioned at a washing position or not is judged, namely whether the drainage valve plug is inserted into a water outlet of the inner cylinder and is in sealing fit with the water outlet; it is also ensured that the washing machine can normally perform the washing mode.

Adjusting the drain valve plug to a washing position, which comprises the following steps; detecting whether the drain valve plug is in a dewatering level; if yes, directly adjusting the drain valve plug to a washing position; if not, the piston is controlled to contract to the dehydration position in the direction away from the inner cylinder, and then the drainage valve is adjusted to the washing position.

Regarding adjusting the drain valve plug to the washing position, the following control can be performed: controlling the drain valve plug to extend upwards; detecting whether the drain valve plug is positioned at a washing position; if the water draining valve is in the washing mode, the piston is controlled to contract to the dewatering position in the direction away from the inner cylinder, and then the water draining valve is adjusted to the washing position and then the washing mode is started.

Next, an embodiment of a drain valve plug is provided, wherein the movement of the drain valve plug can be controlled based on the control method provided by the present invention, so as to achieve precise control of the drain valve plug and increase the reliability of the control.

Referring to fig. 1-2, the drain valve plug comprises sealing rubber 1, a metal wrapping 2, a spring 3, a piston rod 4, a bearing 5, a casting support 6, a cam 7, a motor output shaft 8, a microswitch C9, a cam 10, a microswitch D11, a motor support 12, a traction rope 13, a microswitch A14, a motor support rear cover 15, a forward and reverse rotation motor 16, a mechanical protection 17 and the like.

With regard to the assembly of the drain plug, the following is explained: the piston rod 4 and the sealing rubber 1 are installed by utilizing the deformation of rubber to a certain degree; mounting the bearing 5 on a cast support 6; the spring 3 penetrates into the assembled piston rod 4 and sealing rubber 1 assembly, the piston rod 4 penetrates through the bearing 8, the spring 3 is arranged between the piston rod 4 and the casting support 6, and the spring 3 is extruded to enable the positioning column 101 of the sealing rubber 1 to be correspondingly installed in the installation hole of the casting support 6, so that the installation of the parts is realized; installing a microswitch B7, a microswitch C9, a microswitch D11, a microswitch A14, a forward and reverse rotation motor 16 and a mechanical protection 17 on a motor bracket 12; the hole in the middle of the motor support 12 is matched with the piston rod 4, the upper part of the traction rope 13 penetrates into the middle part of the piston rod 4, the traction rope 13 winds around the cam 10, the cam 10 is matched with the forward and reverse rotation motor 16, and the cam 10, the traction rope 13 and the forward and reverse rotation motor 16 are fixed in a certain mechanical mode. Above complete the equipment of whole piston part, the piston integral erection that will assemble again finishes on water collector 20: the lower edge of the hole of the piston-mounting part on the water receiving basin 20 is aligned with the corresponding 103 of the sealing rubber 1, and the piston and the water receiving basin 20 are fixedly mounted through screws.

Partial component functions of the drain valve plug:

sealing rubber 1: in the washing state (water-sealing state), the drain port of the inner cylinder 19 is closed, and the cast bracket 6 and the drip pan 20 are sealed to prevent water from flowing out of the drip pan.

And (3) metal wrapping 2: the function of reducing the friction resistance between the sealing rubber 1 and the blocking mechanism 25 on the flange is realized.

A spring 3: providing elasticity to position and seal the water by pushing the piston rod 4 up when the pull rope 13 is released.

The piston rod 4: and the transmission part realizes the switching between a washing state and a dehydration state and realizes the positioning by matching with the blocking mechanism 25 on the flange 21.

And (5) bearing: supporting and reducing friction.

Casting a bracket 6: the overall reliability of the mechanism is improved, and the stability of the piston rod 4 is kept.

Microswitch B7 and microswitch a 14: the normally open microswitch is in a default state that the switch is open and the switch is closed after being squeezed.

The cam 10: the cam 10 rotates to realize the up-and-down reciprocating motion of the piston rod 4 under the premise that the spring 3 provides elasticity and is connected with the piston rod 4 through a traction rope 13.

Microswitch C9 and microswitch D11: the normally closed microswitch is in a default state that the switch is closed and the switch is opened after being extruded; by transmitting different signals, the state of the whole mechanism can be distinguished by the signal combination of a plurality of micro switches at the same time.

The motor bracket 12: and a forward and reverse rotating motor 16 is supported to provide an installation position for the microswitch.

A hauling rope 13: the function of power transmission is achieved.

Motor support rear cover 15: the motor is protected.

Forward and reverse rotation motor 16: the motor capable of rotating forward and backward drives the cam 10, the cam 10 drives the traction rope 13 to move up and down, the piston rod 4 is moved up and down in a reciprocating mode through forward and backward rotation of the motor, and therefore switching between a washing state and a dewatering state is achieved.

Mechanical protection 17: when the motor cannot stop rotating within a safe range due to problems, the mechanical protection limits the rotation of the motor shaft so as to prevent the motor shaft from continuously driving the cam 10 to rotate and break the traction rope 13 to destroy the whole mechanism.

The working principle of the drain valve plug is as follows:

the drain valve plug is fixedly mounted with a water receiving basin 20 (water receiving basin: temporary storage device, the interior of the washing machine is free from water during the washing stage, only receives water during the dehydration stage, and is externally connected with a drain pipe to discharge water). Assuming that the default state is a dehydration state, when entering a washing stage, the drain valve plug 16 starts to rotate anticlockwise to drive the cam 10 to rotate anticlockwise, at the moment, the traction rope 13 is released, the piston rod 4 moves upwards under the elastic force of the spring 3, the forward and reverse rotation motor 16 stops rotating, at the moment, the drain valve plug is in a washing state; when the washing stage is finished and the dewatering stage needs to be started, the motor 16 rotates clockwise, the traction rope 13 is pulled down at the moment, the piston rod 4 is pulled down, the forward and reverse rotation motor 16 stops rotating, the drainage valve plug returns to the drainage state at the moment, and the drainage valve plug is positioned at the dewatering level.

Because the positive and negative rotation motor 16 can rotate positively and negatively, and the length of the traction rope 13 is limited, the rotation and stop of the positive and negative rotation motor 16 are realized by depending on the change of 4 microswitch signals, and the microswitch generally does not easily break down, but once the motor fails to operate according to ideal logic, the traction rope 13 can be pulled down continuously, the integral structure of the piston is finally damaged, and the traction rope breaks down, so that the whole function is lost. Therefore, a mechanical protection 17 is added, the mechanical protection 17 is connected with a motor shaft of the positive and negative rotation motor 16, if the forward and reverse motor 16 still does not stop rotating after pressing the microswitch D, the forward and reverse motor 16 will continue to rotate counterclockwise with the mechanical protection 17, the forward and reverse motor and the mechanical protection 17 will continue to rotate for a short distance, if, within this allowable tolerance range, the counter-rotating motor 16 has not stopped rotating (i.e. has not received a stop signal), the stop signal is not received by default, the mechanical guard 17 is blocked by the structure on the motor bracket 12, the mechanical guard 17 cannot rotate counterclockwise, the output shaft of the forward/reverse rotation motor 16 cannot rotate continuously, the forward/reverse rotation motor 16 is locked, according to the protection mechanism, the temperature is too high after the locked rotor is in a certain time, and the alarm can be directly sent out, so that the motor can be burnt, but the piston structure is reserved.

By adopting the control method provided by the invention, the control process of the drainage valve plug is as follows:

as shown in fig. 13, for the flow chart after the user selects the normal washing mode, firstly, the forward/reverse motor 16 is given a signal for a certain time (the certain time is the time of half a circle of cam rotation), which is because there is a sudden power failure, after the power failure, if there is no power failure memory function (there is no power failure memory function in general) after the power failure, it is impossible to accurately determine which stage the drain valve plug is in, and after the power failure, the washing program is selected, the drain valve plug must be in the washing state, so the forward/reverse motor rotation instruction is directly given, if the drain valve plug is in the washing state, the microswitch C is in the squeezed state, the microswitch C is a normally closed microswitch, i.e. the microswitch C is changed from the closed state to the open state after being squeezed, when the controller detects the open state of the microswitch C, giving a command of stopping the rotation of the forward and reverse rotating motor; if the drain valve plug is aligned with the drain opening of the inner barrel (but is in a non-washing position), the forward and reverse rotating motor 13 receives a signal to rotate, and the drain valve plug rises to close the drain opening to realize sealing and enter a washing state; if drainage valve plug and outlet do not align this moment, positive reverse motor 13 receives the signal after and rotates, whether carry out the judgement that the drainage valve plug is in the washing state again, micro-gap switch A and micro-gap switch B be whether loosen and present the off-state promptly, micro-gap switch C has or not by the extrusion and present the off-state, if micro-gap switch A, micro-gap switch B, micro-gap switch C's all disconnection, judge that the drainage valve plug is in the washing state, then directly get into the washing mode, otherwise, the drainage valve plug gets into the dehydration state earlier, get into the washing state by the dehydration state again, washing machine gets into normal washing dehydration flow afterwards.

Referring to fig. 18, a flowchart after selecting a general washing mode for a user, i.e., control, may also be as follows: firstly, the drain valve plug can be judged not to be in a washing state, namely whether the microswitch A and the microswitch B are not extruded to present a switch off state or not, the microswitch C is extruded to present the switch off state or not, if the microswitch A, the microswitch B and the microswitch C are all disconnected, the drain valve plug is judged to be in the washing state, then the drain valve plug directly enters a washing mode, otherwise, the drain valve plug firstly enters a dewatering state, then the drain valve plug enters the washing state from the dewatering state, and then the washing machine enters a normal washing and dewatering process.

As shown in fig. 14, for the flow of the drain valve plug entering into the dewatering state, that is, the forward and reverse rotation motor 16 is driven clockwise (clockwise and counterclockwise determination is performed at the angle of fig. 1), the forward and reverse rotation motor 16 drives the cam 10 to rotate clockwise, the cam 10 rotates, the pulling rope 13 is wound in the rotating groove of the cam 10 in a rotating manner, so that the pulling rope 13 pulls the piston rod 4 to move down, if the drain valve plug enters into the dewatering level from the washing position, the cam rotates to release the microswitch C9 first, if the drain valve plug is not at any position of the washing position, the piston rod 4 moves down to touch the extruding microswitch B first, then the microswitch a is pressed under extrusion, the forward and reverse rotation motor 16 rotates continuously, the cam 10 rotates continuously, the salient point on the cam 10 extrudes the microswitch D, because the microswitch D is a normally closed type microswitch, and is connected in series with a forward rotation control circuit of the forward and reverse rotation motor 18, that is, after the microswitch D is pressed, the switch is changed from the closed state to the open state, the forward rotation circuit of the forward and reverse rotation motor is disconnected, that is, the forward and reverse rotation motor 16 stops rotating. When the controller detects that the micro switch B and the micro switch A are in a closed state and the micro switch D is in an open state, the drain valve plug is considered to be in a dehydration state; if not, reporting the fault.

As shown in fig. 15, after the drain valve plug enters the dewatering state, the washing machine is driven to enter the washing state process, the main motor is driven to enter the positioning program 1, after the positioning program 1 is finished, the forward and reverse rotation motor 16 is driven to rotate counterclockwise, when the piston rod 4 moves upwards to release the microswitch a and the microswitch a is detected to be changed from the closed state to the open state, a command for stopping the rotation of the forward and reverse rotation motor 16 is given, and at this time, the position of the drain valve plug is in the position shown in fig. 5-6, namely, the positioning position; after the positioning position is reached, the main motor is driven to execute the positioning program 2, after the positioning program is completed, the forward and reverse motor 16 is driven to continue to rotate anticlockwise, the cam 10 continues to rotate, the convex points on the cam can extrude the microswitch C, the microswitch C is a normally-closed microswitch, namely the microswitch C is changed from a closed state to an open state after being extruded, and when the controller detects the open state of the microswitch C, an instruction for stopping the rotation of the forward and reverse motor is given at the moment. And judging the states of the microswitch A, the microswitch B and the microswitch C, judging whether the microswitch A, B is in an off state and the microswitch C is in an off state, if so, indicating that the drain valve plug enters a washing state, and if not, directly reporting the fault.

As shown in fig. 16, regarding the flow chart of the positioning program 1, firstly, the main motor is driven to rotate at a low speed (assuming that Xs is required for one rotation at the low speed), and the timing is started, the time is T1, within the period that T1 is not more than Xs, the magnetic induction switch 22 sends out a closing signal (the closing signal is the positioning signal, when the magnetic induction switch 22 on the water receiving basin 20 is close to the magnet 24 on the inner barrel, the magnetic induction switch 22 is closed), after receiving the closing signal, a signal that the main motor stops rotating is sent out, and if T1 exceeds Xs, the fault is directly reported.

As shown in fig. 17, it is a flowchart of the positioning procedure 2, at this time, the drain valve plug is in the positioning position, at this time, it is first determined whether the magnetic induction switch 22 is closed, and if the magnetic induction switch 22 is not closed, the main motor is directly driven to continue to rotate Ys (Ys is a preset time, and Ys is calculated according to the rotation speed of the inner cylinder, the position of the magnet, and the like, and the drain valve plug is always located above the drain opening); if the magnetic induction switch 22 is detected to be closed, the main motor is driven to rotate, timing T2 is started, whether the magnetic induction switch 22 is changed from closed to open within Ys which is less than or equal to T2 is detected, if yes, the main motor is driven to continue rotating Ys, then the main motor stops rotating, and at the moment, the inner cylinder rotates to a matching position; if not, otherwise, reporting the fault.

In the positioning procedure 2, it is determined whether the magnetic induction switch 22 is closed, because the inner cylinder 19 can continue to rotate due to inertia, which causes the magnetic induction switch 22 to move away from the magnet on the inner cylinder, which causes the magnetic induction switch 22 to be opened.

Example 2:

a washing machine comprising: one or more memories to store executable programs; one or more processors for executing the executable program in the memory to realize the washing control method of the washing machine without the outer drum and the rotary drum.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A washing control method of a washing machine without an outer drum and a pulsator is characterized by comprising the following steps:

controlling the driving device to act, wherein the drain valve plug connected with the driving device contracts in the direction far away from the inner cylinder;

when the driving device triggers a signal D, the driving device stops acting, and the drainage valve plug retracts to a dewatering level;

controlling the inner cylinder to rotate to a matching position;

the driving device is controlled to reversely act, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug;

and judging whether the B signal is triggered or not in the upward extending process of the drainage valve plug, if so, judging that the drainage valve plug is inserted into the water outlet of the inner cylinder.

2. The washing control method of the pulsator washing machine without the outer tub of claim 1, wherein the driving device stops the operation in relation to the driving device triggering the D signal, specifically comprising:

when the driving device contacts the microswitch D, the driving device stops acting;

wherein the microswitch D is connected with the driving device circuit in series.

3. The washing control method of the pulsator washing machine without the outer tub of claim 2, wherein the control driving device is operated in reverse, and the drain valve plug is extended in a direction approaching the inner tub by its own elastic force, as follows:

the driving device is controlled to act, and the drain valve plug extends upwards under the action of the elasticity of the drain valve plug;

the driving device contacts the microswitch C;

when the state change signal of the microswitch C is detected, the control circuit controls the on/off of the micro switch C

Controlling the driving device to stop acting;

before the driving device stops, whether the drainage valve plug triggers a B signal or not is judged.

4. The washing control method of the pulsator washing machine without an outer tub according to any one of claims 1 to 3, wherein before controlling the inner tub to rotate to the fitting position, the method further comprises the following steps:

the driving device is controlled to act reversely, and the drain valve plug extends towards the direction close to the inner cylinder under the action of the elasticity of the drain valve plug;

if the drainage valve plug extends upwards to trigger a signal A, the driving device stops acting, and the drainage valve plug is located at a locating position;

when the inner cylinder rotates to the matching position, the drainage valve plug at the positioning position is contacted with the blocking structure on the inner cylinder, so that the drainage valve plug and the drainage port of the inner cylinder are positioned.

5. The washing control method of the pulsator washing machine without the outer drum as claimed in claim 4, wherein before the inner drum is controlled to rotate to the matching position, the washing control method further comprises the following steps:

controlling a main driving device to drive the inner cylinder to rotate to a pre-matching position;

controlling the drain valve plug to adjust to the positioning position;

and controlling the inner cylinder to rotate to a matching position.

6. The washing control method of the pulsator washing machine without the outer drum as claimed in claim 5, wherein the controlling of the main driving device to rotate the inner drum to the pre-engagement position comprises the following steps:

the main driving device drives the inner cylinder to rotate at a low speed and counts the rotating time T of the inner cylinder ₁ ；

When T is ₁ ≤X _S When a pre-in-place signal is detected, controlling the main driving device to stop rotating;

if T ₁ >X _S If the pre-in-place signal is not detected, a fault is reported;

wherein, X _S The time for the inner cylinder to rotate for one circle at low speed.

7. The washing control method of the pulsator washing machine without an outer drum as claimed in claim 6, wherein the controlling of the rotation of the inner drum to the fitting position comprises the following steps:

controlling the main driving device to drive the inner cylinder to rotate;

and when the main driving device rotates for a certain time, controlling the main driving device to stop rotating.

8. The washing control method of the pulsator washing machine without an outer drum as claimed in claim 7, wherein the controlling of the rotation of the inner drum to the matching position specifically comprises the following steps:

detecting a pre-in-place signal;

if the pre-in-place signal is not detected, controlling the inner cylinder to continue rotating Y _S Then stopping;

if the pre-in-place signal is detected, controlling the inner cylinder to rotate and timing the rotating time T of the inner cylinder ₂ When T is ₂ ≤Y _S When the pre-in-place signal disappears, the inner cylinder is controlled to continue rotating Y _S Then stop when T ₂ >Y _S If the pre-in-place signal is not detected to disappear, a fault is reported.

9. The washing control method of the pulsator washing machine without an outer tub according to any one of claims 1 to 3, comprising:

when a washing mode command is recognized;

detecting whether the drain valve plug is in a washing position;

if not, adjusting the drain valve plug to a washing position.

10. The washing control method for the pulsator-free washing machine without an outer tub as claimed in claim 8, wherein the adjusting the drain valve to the washing position comprises:

detecting whether the drain valve plug is in a dewatering level;

if yes, directly adjusting the drain valve plug to a washing position;

if not, the drainage valve plug is controlled to contract to a dehydration position in the direction away from the inner cylinder, and then the drainage valve plug is adjusted to a washing position.

11. The washing control method of the pulsator washing machine without an outer tub of claim 8, wherein the adjusting the drain valve plug to the washing position comprises:

controlling the drain valve plug to extend upwards;

detecting whether the drain valve plug is positioned at a washing position;

if so, entering a washing mode,

if not, the drainage valve plug is controlled to contract to a dehydration position in the direction away from the inner cylinder, then the drainage valve plug is adjusted to a washing position, and then the washing mode is started.

12. A washing machine, characterized by comprising:

one or more memories to store executable programs;

one or more processors configured to execute the executable program in the memory to implement the washing control method of the pulsator washing machine without outer tub according to any one of claims 1 to 11.