CN115125705A - Washing machine and control method - Google Patents

Abstract

The invention provides a washing machine and a control method, wherein the washing machine comprises a clothes treatment barrel and a drainage device, a drainage port is formed at the bottom of the clothes treatment barrel, and the drainage device is arranged below the drainage port and comprises a sealing element, a mandril and a detection element; the sealing member is provided with a sealing part; one end of the ejector rod is connected with the sealing part; the detection piece can detect the position of the ejector rod; the ejector rod is controlled to move, when the detection signal of the detection piece is a first detection signal, the ejector rod is judged to be at a first working position, the sealing part seals the water outlet, and the washing machine can run a washing mode; when the detection signal is a second detection signal, the ejector rod is judged to be at a second working position, the sealing part opens the water outlet, and the ejector rod is controlled to stop moving; the first working position and the second working position are both stroke stop positions, the ejector rod is in the stroke stop positions, the ejector rod needs to be controlled to stop moving, and the sealing element is prevented from being damaged; a labyrinth seal structure is formed among the limiting part of the sealing element, the second fixing part and the limiting groove, and the sealing effect is good.

Description

Washing machine and control method

Technical Field

The invention belongs to the technical field of clothes treatment equipment, and particularly relates to a washing machine and a control method.

Background

With the development of economic society, washing machines gradually become indispensable household appliances in people's daily life; the washing machine with a single-tub structure gradually receives wide attention of people, when clothes need to be washed, a water discharge port of the washing tub is sealed through a water discharge device, and the washing tub contains water and rotates to wash the clothes; when the water needs to be drained, the drainage device opens a drainage port of the washing tub, and the water in the washing tub is drained; but lack of the necessary travel sensing elements results in inaccurate and fragile position control of the sealing member.

Disclosure of Invention

In view of the above, the present invention provides a washing machine and a control method thereof, so as to solve the problems of inaccurate position control and easy damage of a sealing component caused by the lack of a necessary stroke detection component of a drainage device of a washing machine with a single-tub structure in the prior art.

The present invention provides a washing machine including a laundry treating tub, a controller, and a drain device, a drain port being formed at a tub bottom of the laundry treating tub, the drain device being disposed below the drain port, the drain device including:

a sealing member provided with a sealing portion for opening and closing engagement with the drain port;

one end of the ejector rod is connected with the sealing part and can be controlled to move; the ejector rod is provided with a first working position and a second working position in the movement direction of the ejector rod, the first working position is an upper stop position of the ejector rod, and the second working position is a lower stop position of the ejector rod;

the driving mechanism can drive the ejector rod to move;

the detection piece is arranged on a motion path of the ejector rod, is electrically connected with the controller, and is used for detecting the position of the ejector rod and transmitting a detection signal to the controller; the controller can determine the position of the ejector rod according to the detection signal so as to determine the state of the sealing element;

the driving mechanism drives the ejector rod to move, when the detection signal is a first detection signal, the ejector rod is located at a first working position, and the sealing part and the water outlet are in a contact state of sealing the water outlet;

when the detection signal is a second detection signal, the ejector rod is located at a second working position, the sealing part and the water outlet are in a separated state of opening the water outlet, and the controller controls the driving mechanism to stop the ejector rod.

Further optionally, the drainage device further comprises a blocking member disposed at a bottom of the laundry treating tub; the sealing piece is provided with a positioning part matched with the barrier piece, and the positioning part is positioned on the side part of the sealing part;

the ejector rod is also provided with a third working position and a fourth working position in the moving direction;

the driving mechanism drives the ejector rod to move, when the detection signal is a third detection signal, the ejector rod is located at a third working position, the sealing part and the water outlet are in a separation state of opening the water outlet, the positioning part is further in a contact state with the blocking part, and the sealing part is located below the water outlet;

when the detection signal is a fourth detection signal, the ejector rod is located at a fourth working position, the sealing part and the water outlet are in a separation state of opening the water outlet, and the positioning part and the blocking part are in a separation state.

Further optionally, a fourth trigger position, a third trigger position, a first trigger position and a second trigger position are sequentially formed at one end of the ejector rod along the movement direction of the ejector rod; the first trigger bit and the second trigger bit are arranged oppositely;

the detection piece is a positioning switch and comprises a first positioning switch and a second positioning switch, the first positioning switch corresponds to the first trigger position, the third trigger position and the fourth trigger position, and the second positioning switch corresponds to the second trigger position and the third trigger position;

the driving mechanism drives the ejector rod to move, and when the first positioning switch is in contact with a first trigger position and enables the first positioning switch to be disconnected, and the second positioning switch is in contact with a second trigger position and enables the second positioning switch to be disconnected, the controller judges that the detection signal is a first detection signal;

when the first positioning switch is in contact with a fourth trigger position and the first positioning switch is switched off, and the second positioning switch is in contact with a third trigger position and the second positioning switch is switched off, the controller judges that the detection signal is a second detection signal;

when the first positioning switch is in contact with a third trigger position and the first positioning switch is closed, and the second positioning switch is in contact with a second trigger position and the second positioning switch is disconnected, the controller judges that the detection signal is a third detection signal;

when the first positioning switch is in contact with the third trigger position and enables the first positioning switch to be closed, and the second positioning switch is in contact with the third trigger position and enables the second positioning switch to be closed, the controller judges that the detection signal is a fourth detection signal.

Further optionally, the washing machine further comprises a water collecting member disposed below the water discharge port; a first support is formed at the bottom of the water collecting piece, the first support is surrounded into an installation position, and the drainage device is arranged at the installation position; a first fixing part is formed at the bottom of the first bracket;

the drainage device also comprises a second bracket arranged at the bottom of the first bracket, wherein the second bracket is provided with an installation plate, and a plurality of second fixing parts are formed on one side of the installation plate, which faces the first bracket; the bottom of the sealing element is arranged between the first fixing part and the second fixing part, and a labyrinth sealing structure is formed between the first fixing part and the second fixing part.

Further optionally, the mounting plate forms a limiting groove between two adjacent second fixing parts; the bottom of the sealing element is provided with a limiting part, the structure of the limiting part is matched with that of a limiting groove, and the limiting part and the first fixing part are embedded in the limiting groove, so that the labyrinth sealing structure is formed among the limiting part, the second fixing part and the limiting groove.

Further optionally, the mounting plate is formed with one of a positioning hole or a positioning column at the position of the limiting groove, and the limiting part is formed with the other of the positioning hole or the positioning column; when the limiting part is embedded in the limiting groove, the positioning column is matched with the positioning hole to position the sealing element on the mounting plate.

Further optionally, a guide portion is formed on one side of the mounting plate facing the sealing member, and a guide hole is formed on the guide portion; the driving mechanism comprises a traction rope, a traction motor and an elastic piece; one end of the traction rope is connected with a traction motor, and the other end of the traction rope is connected with the bottom of the ejector rod; the top of the ejector rod penetrates through the guide hole and is connected with the sealing part; the elastic piece is sleeved outside the ejector rod, one end of the elastic piece is connected with the guide part, and the other end of the elastic piece is connected with the top of the ejector rod;

the traction motor rotates, the ejector rod moves to a second working position under the action of the traction rope, and the elastic piece is compressed to store energy; when the ejector rod is at a second working position, the ejector rod is explained to move to a lower stop position, and the controller controls the traction motor to stop the ejector rod and give an alarm;

when the traction motor rotates reversely, the elastic piece releases energy and drives the ejector rod to move upwards to a fourth working position, the sealing part and the water outlet are in a separated state of opening the water outlet, and the clothes treatment barrel can drain water;

the elastic piece continuously releases energy and drives the ejector rod to continuously move upwards to a third working position, and when the positioning part of the sealing piece is in a contact state with the blocking piece, the sealing part is positioned below the water outlet;

when the elastic piece continuously releases energy and drives the ejector rod to continuously move upwards to the first working position, the ejector rod moves to the upper stop position, the sealing part and the water outlet are in a contact state of sealing the water outlet, and the washing machine can run a washing mode to wash clothes.

Further optionally, one of a magnetic induction sensor and a magnet is arranged on the water collecting piece, the other of the magnetic induction sensor and the magnet is arranged at the bottom of the clothes treatment barrel, the magnetic induction sensor and the magnet are located in the same preset cylindrical surface, and the preset cylindrical surface is coaxial with the clothes treatment barrel; the magnetic induction sensor is electrically connected with the controller;

the clothes processing barrel rotates, and when the magnetic induction sensor outputs a signal, the controller controls the clothes processing barrel to stop rotating; the driving mechanism drives the mandril to move upwards to a third working position, the controller controls the clothes processing barrel to rotate and enables the positioning part to be in contact with the blocking part, and then the sealing part is positioned below the water outlet.

The present invention also provides a control method of any one of the above washing machines, including:

starting the washing machine and acquiring a detection signal of the detection piece;

determining the position of the ejector rod corresponding to the detection signal;

and controlling the washing machine to operate a target program corresponding to the position of the ejector rod.

Further optionally, the determining the position of the jack corresponding to the detection signal includes:

comparing the detection signal with a preset signal;

when the detection signal is a first detection signal, determining that the ejector rod is at a first working position, and the sealing part of the sealing element and the water outlet are in a contact state of closing the water outlet;

when the detection signal is a second detection signal, determining that the ejector rod is located at a second working position, and the sealing part and the water outlet of the sealing part are in a separation state of opening the water outlet;

when the detection signal is a third detection signal, determining that the mandril is at a third working position, and when the magnetic induction sensor outputs a signal, controlling the clothes processing barrel to rotate and enabling the positioning part of the sealing element to be in a contact state with the blocking piece;

and when the detection signal is a fourth detection signal, determining that the ejector rod is at a fourth working position, and the positioning part of the sealing element is separated from the blocking part.

Further optionally, the controlling the washing machine to run the target program corresponding to the position of the top bar comprises:

when the ejector rod is positioned at a first working position, controlling the driving mechanism to stop running and the washing machine to run in a washing mode;

when the ejector rod is at a second working position, controlling the driving mechanism to stop running and giving an alarm;

when the ejector rod is located at a third working position, controlling the driving mechanism to drive the ejector rod to move downwards to a fourth working position;

when the ejector rod is positioned at a fourth working position, the clothes processing barrel is controlled to rotate; when the magnetic induction sensor outputs signals, the clothes treatment barrel is controlled to stop rotating, the driving mechanism is controlled to drive the mandril to move upwards to a third working position, the clothes treatment barrel is controlled to rotate, the positioning part is contacted with the blocking part, and the clothes treatment barrel is controlled to stop rotating; and continuously controlling the driving mechanism to drive the mandril to move upwards to a first working position, and controlling the driving mechanism to stop running and the washing machine to run in a washing mode.

Further optionally, the control method further includes:

and when the washing machine finishes the washing mode, controlling the driving mechanism to drive the ejector rod to move downwards to a fourth working position, and draining water from the clothes treatment barrel.

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

(1) when the detection signal is a first detection signal, the ejector rod is located at a first working position, the sealing part is in contact with the water outlet, the water outlet is sealed, and the clothes treatment barrel can store water to wash clothes; when the detection signal is a second detection signal, the ejector rod is located at a second working position, the sealing part is separated from the water outlet, the ejector rod moves to a lower stop position, the driving mechanism is controlled to stop the ejector rod, and the problem that the sealing part is damaged due to the failure of the driving mechanism is avoided;

(2) when the detection signal is a third detection signal, the ejector rod is positioned at a third working position, the clothes processing barrel rotates and enables the positioning part and the blocking part to be in a contact state, and the sealing part is positioned below the water outlet; when the detection signal is a fourth detection signal, the ejector rod is in a fourth working position, the sealing part is separated from the water outlet, the water outlet is opened, and water in the clothes treatment barrel can be discharged through the water outlet; the positioning precision of the water outlet is improved, the positioning is accurate, and the problems that the existing drainage device is inaccurate in positioning and the positioning device is abraded to generate positioning errors are solved;

(3) the structure of the drainage device is simplified, and the control process of opening and sealing the drainage port is optimized; the water outlet is opened quickly, water is drained in time, and the installation is convenient and quick; the motors required by the positioning device are reduced, and the opening, positioning and sealing of the water outlet are integrated; the problems that the existing drainage device needs different structures for positioning and sealing, so that the drainage device is high in cost and complex in installation process are solved; when in a washing mode, no water is stored between the clothes treatment barrel and the water collecting part, so that the problem that dirt is stored on the outer side wall and the outer side of the bottom of the clothes treatment barrel is solved, and the water consumption for washing is reduced; the problems of complex structure and complex control process of the existing drainage device are solved;

(4) the ejector rod is matched with the guide hole through a bearing, so that the friction between the ejector rod and the guide hole is reduced; the top of the ejector rod forms a skirt edge, so that the contact area between the ejector rod and the sealing part is enlarged, and the positioning accuracy and the sealing reliability are improved; the ejector rod is provided with a plurality of trigger positions, the drainage device is correspondingly provided with a plurality of positioning switches, so that the movement of the ejector rod is controlled, the position of the sealing part is accurately controlled, the washing mode and the dehydration mode of the washing machine are optimized, and the problem of inaccurate position control of the sealing part is solved;

(5) a labyrinth seal structure is formed among the limiting part of the sealing element, the second fixing part and the limiting groove, the sealing effect is good, and the problem that the traction motor fails because water discharged by the clothes treatment barrel enters the mounting cavity through the limiting part is solved; when the sealing part moves up and down along with the ejector rod, the corrugated section can stretch or contract, so that the sealing element can continuously and reliably seal each part in the sealing cavity and at the bottom of the sealing element, and the problem of traction motor failure caused by inaccurate sealing is solved.

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 description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic structural diagram of an embodiment of a washing machine according to the present invention;

FIG. 2a is a schematic structural view of an embodiment of the drainage device provided by the present invention when the post rod is in the first working position;

FIG. 2b is a schematic structural view of the drainage device of the present invention when the post rod is in the third working position;

FIG. 2c is a schematic structural diagram of an embodiment of the drainage device provided by the present invention when the post rod is in a fourth working position;

FIG. 2d is a schematic structural view of the drainage device of the present invention when the post rod is in the second working position;

FIG. 3 is a schematic structural diagram of an embodiment of the washing machine provided by the present invention when the sealing part and the blocking member are engaged;

FIG. 4 is a schematic structural diagram of an embodiment of a location of a magnetic induction sensor according to the present invention;

FIG. 5 is a schematic axial view of an embodiment of a washing machine according to the present invention;

FIG. 6 is a flowchart illustrating an embodiment of a control method for a washing machine according to the present invention;

in the figure:

1-a laundry treatment tub; 11-a water outlet; 12-a barrier;

2-a water collecting member; 21-a first scaffold; 211-a mounting location; 212-a first fixed part;

31-a seal; 311-a sealed chamber; 312-a seal; 313-a positioning section; 314-a corrugated section; 315-a limiting part; 316-positioning post; 32-a top rod; 321-a first trigger bit; 322-second trigger bit; 323-third trigger bit; 324-fourth trigger bit; 325-skirt edge; 33-a second scaffold; 331-a mounting plate; 332-a second fixed part; 333-limiting groove; 334-a guide; 335-a guide hole; 34-a third bracket; 341-installation cavity; 351-a first positioning switch; 352-second positioning switch; 36-a bearing;

4-a drive mechanism; 41-an elastic member; 42-a traction motor; 43-a hauling rope;

51-a magnetic induction sensor; 52-magnet.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article of commerce or system in which the element is comprised.

When the existing single-barrel washing machine washes clothes, a drainage port of a washing barrel is sealed by a drainage device, and the washing barrel rotates to wash the clothes; the drainage device opens the drainage outlet of the washing tub during drainage, and the washing tub drains water; however, the washing tub is rotated to make the position of the drain outlet of the washing tub uncertain, the washing tub needs to be locked to a certain position by a locking mechanism, and the drain outlet is ensured to be opened or closed at the same position, which makes the structure of the drain device complicated, the control process is complicated, and in addition, the necessary stroke detection piece is lacked, so that the position control of the sealing part is inaccurate and the fault is easy to occur.

The invention creatively provides a washing machine, which comprises a clothes treatment barrel and a drainage device, wherein a drainage port is formed at the bottom of the clothes treatment barrel, and the drainage device is arranged below the drainage port and comprises a sealing element, a mandril and a detection element; the sealing member is formed with a sealing portion that can open and close the drain opening; one end of the ejector rod is connected with the sealing part and can be controlled to move; the detection piece can detect the position of the ejector rod; the ejector rod is controlled to move, when the detection signal of the detection piece is a first detection signal, the ejector rod is judged to be at a first working position, the sealing part closes the water outlet, and the washing machine can run a washing mode to wash clothes; when the detection signal is a second detection signal, the ejector rod is judged to be at a second working position, the sealing part opens the water outlet, and the ejector rod is controlled to stop moving; the first working position is an upper stop position, the second working positions are lower stop positions, the ejector rod is located at the upper stop position or the lower stop position, the ejector rod needs to be controlled to stop moving, and the phenomenon that the ejector rod moves beyond the stroke to cause damage to a sealing element and weakening of the sealing effect of the water outlet is avoided.

< determination of the position of the ejector pin >

As shown in fig. 1 and 5, the present embodiment provides a washing machine, which includes a laundry treatment tub 1, a controller, and a drainage device, wherein a drainage outlet 11 is formed at the bottom of the laundry treatment tub 1, the drainage device is disposed below the drainage outlet 11, and the drainage device includes a sealing member 31, a top bar 32, a driving mechanism 4, a detection member, and a blocking member 12; the sealing member 31 is made of elastic material and has a sealing part 312 formed at one end close to the water discharge port 11, the sealing part 312 is matched with the water discharge port 11 in an opening and closing way and can open or close the water discharge port 11; specifically, when the sealing portion 312 is in contact with the drain opening 11, the drain opening 11 is closed; when the sealing part 312 is separated from the drain opening 11, the drain opening 11 is opened;

one end of the ejector rod 32 is connected with the sealing part 312 and can be controlled to move, and when the ejector rod 32 moves, the sealing part 312 can be driven to move relative to the water outlet 11, so that the water outlet 11 is opened and closed; the ejector rod 32 is provided with a first working position, a second working position, a third working position and a fourth working position in the movement direction, and according to the stroke of the ejector rod 32, the stroke stop position of the ejector rod 32 comprises an upper stop position and a lower stop position, wherein the upper stop position is the maximum stroke position of the upward movement of the ejector rod 32, and the lower stop position is the maximum stroke position of the downward movement of the ejector rod 32; the first working position is the upper stop position of the mandril 32, and the second working position is the lower stop position of the mandril 32; the third working position and the fourth working position are both positioned between the first working position and the second working position;

the driving mechanism 4 and the mandril 32 act together to drive the mandril 32 to move;

the detection piece is arranged on the motion path of the ejector rod 32, is electrically connected with the controller, and is used for detecting the position of the ejector rod 32 and transmitting a detection signal to the controller; when the positions of the push rods 32 are different, detection signals transmitted to the controller by the detection pieces are different; the controller can determine the position of the corresponding ejector rod 32 according to the detection signal, and further determine the state of the sealing element 31;

the blocking member 12 is provided at the bottom of the laundry treating tub 1, the sealing member 31 is formed with a positioning part 313 engaged with the blocking member 12, the positioning part 313 is located at a side of the sealing part 312; specifically, the blocking member 12 is a circular arc segment, and is located on the outer peripheral side of the drain opening 11, and is used for positioning the drain opening 11, so as to prepare for subsequently closing the drain opening 11;

as shown in fig. 2a, the driving mechanism 4 drives the push rod 32 to move, and when the detection signal is a first detection signal, the controller determines that the push rod 32 is in the first working position, and the sealing portion 312 and the water discharge opening 11 are in a contact state of closing the water discharge opening 11;

as shown in fig. 2d, the driving mechanism 4 drives the push rod 32 to move, when the detection signal is the second detection signal, the controller determines that the push rod 32 is at the second working position, and the sealing portion 312 and the water discharge opening 11 are in a separated state of opening the water discharge opening 11, and the controller controls the driving mechanism 4 to stop the movement of the push rod 32; the problem of damage to the seal 31 due to failure of the drive mechanism 4 is avoided;

as shown in fig. 2b, the driving mechanism 4 drives the ejector rod 32 to move, when the detection signal is a third detection signal, the controller determines that the ejector rod 32 is at the third working position, the sealing part 312 and the water discharge opening 11 are in a separated state of opening the water discharge opening 11, and further the positioning part 313 and the blocking part 12 are in a contact state, and the sealing part 312 is located below the water discharge opening 11;

as shown in fig. 2c, the driving mechanism 4 drives the push rod 32 to move, and when the detection signal is the fourth detection signal, the controller determines that the push rod 32 is at the fourth working position, the sealing portion 312 and the water discharge opening 11 are in a separated state of opening the water discharge opening 11, and the positioning portion 313 and the stopper 12 are in a separated state.

In conclusion, when the top rod is at the first working position, the sealing part closes the water outlet, and the clothes treatment barrel can run a washing mode to wash clothes; when the ejector rod is located at the second working position, the water outlet is opened by the sealing part, the ejector rod is located at the lower stop position, the ejector rod needs to be controlled to stop moving, and the problem that the sealing part is damaged due to the fact that the ejector rod moves beyond the stroke is solved; when the ejector rod is positioned at the third working position, the clothes treatment barrel is controlled to rotate, the positioning part is in contact with the blocking piece, the sealing part is positioned below the water outlet, the water outlet is positioned, the positioning precision is high, the positioning is accurate, and the problems that the existing drainage device is inaccurate in positioning and the positioning device is abraded to generate positioning errors are solved; the top rod is positioned at a fourth working position, the sealing part is separated from the water outlet, the water outlet is opened, and water in the clothes treatment barrel can be discharged through the water outlet;

the structure of the drainage device is simplified, and the control process of opening and sealing the drainage port is optimized; the water outlet is quickly opened and drained in time, and the installation is convenient and quick; the motors required by the positioning device are reduced, and the opening, positioning and sealing of the water outlet are integrated; the problems that the existing drainage device needs different structures for positioning and sealing, so that the drainage device is high in cost and complex in installation process are solved; the problems of complex structure and complex control process of the existing drainage device are solved;

< determination of detection Signal >

As shown in fig. 1, the laundry treating tub 1 in the embodiment is a washing tub, an axis of the washing tub extends in a vertical direction, the top bar 32 is a straight bar and extends in the vertical direction, and under the action of the driving mechanism 4, the top bar 32 moves in the vertical direction, so that the sealing portion 312 is close to or far from the water discharge opening 11 in the vertical direction;

along the moving direction of the ejector rod 32, a first trigger position 321 and a second trigger position 322 are respectively formed on two sides of one end of the ejector rod 32, which is far away from the sealing part 312, and the first trigger position 321 is located above the second trigger position 322; the push rod 32 is provided with a third trigger position 323 above the first trigger position 321 and the second trigger position 322, the push rod 32 is provided with a fourth trigger position 324 on a side corresponding to the first trigger position 321, and the fourth trigger position 324 is located in the third trigger position 323 or the fourth trigger position 324 is located above the third trigger position 323; specifically, the first triggering position 321, the second triggering position 322 and the fourth triggering position 324 are all single-side notches formed along the radial direction of the ejector rod 32, and the third triggering position 323 is the structure of the ejector rod 32 itself;

the detecting element is a positioning switch and includes a first positioning switch 351 and a second positioning switch 352, the first positioning switch 351 corresponds to the first triggering position 321, the third triggering position 323 and the fourth triggering position 324, and the second positioning switch 352 corresponds to the second triggering position 322 and the third triggering position 323; the controller can determine the positions of the push rod 32 and the sealing part 312 according to the opening and closing states of the first positioning switch 351 and the second positioning switch 352, and further control the action of the drainage device, so that the washing machine can run a washing mode, a dehydration mode or a drainage mode;

specifically, the first positioning switch 351 may be turned off by contacting the first positioning switch 351 with the first trigger bit 321, and the first positioning switch 351 may be turned on by contacting the first positioning switch with the third trigger bit 323; the first switch contacting the fourth trigger bit 324 may turn off the first positioning switch 351; the second positioning switch 352 is in contact with the second trigger position 322 to open the second positioning switch 352, and the second positioning switch 352 is closed by the second positioning switch being in contact with the third trigger position 323;

as shown in fig. 2a, the driving mechanism 4 drives the top rod 32 to move, when the first positioning switch 351 is in contact with the first trigger position 321 and turns off the first positioning switch 351, and the second positioning switch 352 is in contact with the second trigger position 322 and turns off the second positioning switch 352, the controller determines that the detection signal is the first detection signal, and then determines that the top rod 32 is in the first working position, the sealing part 312 seals the water outlet 11, and the washing machine can operate the washing mode to wash the clothes;

as shown in fig. 2d, the driving mechanism 4 drives the push rod 32 to move, when the first positioning switch 351 is in contact with the fourth trigger position 324 and turns off the first positioning switch 351, and the second positioning switch 352 is in contact with the third trigger position 323 and turns on the second positioning switch 352, the controller determines that the detection signal is the second detection signal, and determines that the push rod 32 is in the second working position, the push rod 32 moves to the lower stop position, and controls the driving mechanism 4 to drive the push rod 32 to stop moving, so as to avoid damaging the sealing part 312;

as shown in fig. 2b, the driving mechanism 4 drives the plunger 32 to move, when the first positioning switch 351 contacts with the third trigger position 323 and closes the first positioning switch 351, and the second positioning switch 352 contacts with the second trigger position 322 and opens the second positioning switch 352, the controller determines that the detection signal is the third detection signal, determines that the plunger 32 is in the third working position, controls the laundry processing barrel 1 to rotate and contacts the blocking member 12 with the positioning portion 313, and the sealing portion 312 is located below the water outlet 11;

as shown in fig. 2c, the driving mechanism 4 drives the plunger 32 to move, when the first positioning switch 351 contacts with the third trigger position 323 and closes the first positioning switch 351, and the second positioning switch 352 contacts with the third trigger position 323 and closes the second positioning switch 352, the controller determines that the detection signal is the fourth detection signal, and then determines that the plunger 32 is in the fourth working position, the barrier 12 is separated from the positioning portion 313, the sealing portion 312 opens the water outlet 11, and the washing machine can operate the water drainage mode to drain the water from the laundry processing tub 1.

< fixing of seal >

As shown in fig. 1 and 2a to 2d, the washing machine further includes a water collecting member 2, the water collecting member 2 being disposed below the water discharge port 11; a first bracket 21 is formed at the bottom of the water collecting piece 2, the first bracket 21 is enclosed to form an installation position 211, and the drainage device is arranged at the installation position 211; the bottom of the first bracket 21 forms a first fixing part 212; specifically, the mounting location 211 is a cylindrical cavity; the first fixing portion 212 is the bottom of the sidewall of the column cavity; the water collecting piece 2 is a water receiving plate;

the drain apparatus further includes a second bracket 33 provided at the bottom of the first bracket 21, the second bracket 33 being formed with a mounting plate 331, the bottom of the sealing member 31 being provided between the first fixing portion 212 and the mounting plate 331, and a labyrinth structure being formed between the first fixing portion 212 and the mounting plate 331;

in order to solve the problem of poor sealing effect between the bottom of the sealing member 31 and the second bracket 33, the present embodiment proposes that a plurality of second fixing portions 332 are formed on one side of the mounting plate 331 facing the first bracket 21, and a limiting groove 333 is formed between two adjacent second fixing portions 332; a limiting part 315 is formed at the bottom of the sealing element 31, the structure of the limiting part 315 is matched with that of the limiting groove 333, and the limiting part 315 and the first fixing part 212 are embedded in the limiting groove 333, so that a labyrinth seal structure is formed between the limiting part 315, the second fixing part 332 and the limiting groove 333; specifically, the mounting plate 331 is a circular plate, the second fixing portion a and the second fixing portion B are sequentially arranged from inside to outside along the radial direction of the mounting plate 331, the second fixing portion a and the second fixing portion B are arc-shaped structures or ring-shaped structures, and when the second fixing portion a and the second fixing portion B are arc-shaped structures, a plurality of second fixing portions a and second fixing portions B can be arranged along the circumferential direction of the mounting plate 331; correspondingly, the limiting groove 333 is an arc-shaped groove or an annular groove, the limiting portion 315 sequentially forms a limiting portion a, a limiting portion B and a limiting portion C from inside to outside along the radial direction of the mounting plate 331, the limiting portion a, the limiting portion B and the limiting portion C are all bending structures, the limiting portion a is matched with the second fixing portion a, the limiting portion B is embedded in the limiting groove 333, the first fixing portion 212 is embedded in the limiting portion B, the limiting portion C is matched with the second fixing portion B, a labyrinth sealing structure is formed among the first fixing portion 212, the bottom of the sealing member 31 and the second support 33, the sealing effect is good, and the problem that water discharged by the clothes treatment barrel 1 enters the mounting cavity 341 through the limiting portion 315 to cause the fault of the traction motor 42 is effectively avoided.

In order to solve the problem of complex process of installing the sealing member 31 between the first bracket 21 and the second bracket 33, the present embodiment proposes that the installation plate 331 is formed with a positioning hole at the position of the limiting groove 333, and the limiting portion 315 is formed with a positioning post 316; when the limiting part 315 is embedded in the limiting groove 333, the positioning column 316 is matched with the positioning hole to position the sealing element 31 on the mounting plate 331; the location is accurate, and the process is simple, and the installation is rapid, avoids sealing member 31 to rock in the use.

< Driving mechanism >

As shown in fig. 1 and 2a to 2d, the mounting plate 331 is formed with a guide portion 334 on a side facing the seal 31, the guide portion 334 being formed with a guide hole 335; specifically, the guide portion 334 is a column-type or cone-type structure extending in the vertical direction; under the action of the driving mechanism 4, the mandril 32 slides up and down along the guide hole 335, so as to open, position and close the water outlet 11; the accuracy of positioning the sealing portion 312 and the tightness of closing the drain opening 11 are improved.

The driving mechanism 4 comprises a traction rope 43, a traction motor 42 and an elastic piece 41; one end of a traction rope 43 is connected with the traction motor 42, and the other end of the traction rope 43 is connected with the bottom of the ejector rod 32; the top of the post rod 32 passes through the guide hole 335 and is connected with the sealing part 312; the elastic part 41 is sleeved outside the ejector rod 32, one end of the elastic part 41 is connected with the guide part 334, and the other end of the elastic part 41 is connected with the top of the ejector rod 32; specifically, the top rod 32 is matched with the guide hole 335 through a bearing 36, so that friction between the top rod 32 and the guide hole 335 is reduced; the elastic member 41 is a spring; the first bracket 21, the second bracket 33, the sealing element 31, the elastic element 41 and the ejector rod 32 are coaxially arranged;

the traction motor 42 rotates forwards, one end of the traction rope 43 is gradually wound on the output shaft of the traction motor 42, the ejector rod 32 moves to the second working position under the action of the traction rope 43, and the elastic part 41 is compressed to store energy; when the ejector rod 32 is at the second working position, which indicates that the ejector rod 32 moves to the lower stop position, the controller controls the traction motor 42 to stop the movement of the ejector rod 32 and give an alarm;

the traction motor 42 rotates reversely, one end of the traction rope 43 is gradually unfolded by the output shaft of the traction motor 42, the elastic part 41 releases energy and drives the mandril 32 to move upwards to the fourth working position, and the water outlet 11 is in an open state;

the elastic element 41 releases energy continuously and drives the mandril 32 to move upwards continuously to the third working position, when the clothes processing barrel 1 is controlled to rotate and the positioning part 313 and the blocking element 12 are in a contact state, the sealing part 312 is positioned below the water outlet 11;

when the elastic member 41 continues to release energy and drive the top rod 32 to continue to move upwards to the first working position, the top rod 32 is moved to the top stop position, and the water outlet 11 is in a closed state.

< third support and carrier rod >

As shown in fig. 1, the drain device further includes a third bracket 34, the third bracket 34 being disposed at the bottom of the second bracket 33; the third bracket 34 forms a mounting cavity 341, the traction motor 42 is arranged at the bottom of the mounting cavity 341, and the first positioning switch 351 and the second positioning switch 352 are arranged at the top of the mounting cavity 341; the mounting chamber 341 communicates with the guide hole 335, and the top of the jack 32 passes through the guide hole 335 from the mounting chamber 341.

The top of the ejector rod 32 forms a skirt 325, the top of the sealing element 31 forms a sealing part 312, the bottom of the sealing part 312 of the sealing element 31 forms a corrugated section 314, and the corrugated section 314 is of a column-shaped structure as a whole; the sealing part 312 and the corrugated section 314 are enclosed to form a sealing cavity 311, and the sealing cavity 311 is communicated with the guide hole 335; the top of the mandril 32 sequentially passes through the mounting cavity 341 and the guide hole 335, extends upwards into the sealing cavity 311 and is connected with the sealing part 312 through the skirt 325; the skirt 325 increases the contact area between the ejector rod 32 and the sealing part 312, and the positioning part 313 and the sealing part 312 have certain rigidity, so that the positioning accuracy and the sealing reliability are improved;

under the action of the driving mechanism 4, when the sealing part 312 moves upwards along with the mandril 32, the corrugated section 314 extends; when the sealing part 312 moves downwards along with the ejector rod 32, the corrugated section 314 contracts, and all parts in the sealing cavity 311 and at the bottom of the sealing element 31 are always sealed in the expansion or contraction process of the corrugated section 314, so that the sealing is reliable, and the problem of failure of the traction motor 42 caused by untight sealing is solved.

< magnetic induction sensor and magnet >

As shown in fig. 3, 4 and 5, the water collecting member 2 is provided with a magnetic induction sensor 51, the bottom of the laundry treatment tub 1 is provided with a magnet 52, and the magnetic induction sensor 51 and the magnet 52 are located in the same preset cylindrical surface which is coaxial with the laundry treatment tub 1; the magnetic induction sensor 51 is electrically connected with the controller; the rotation of the clothes processing barrel 1 drives the magnet 52 to rotate, and the magnetic induction sensor 51 can sense the magnet 52 and further output a signal to the controller;

when the mandril 32 is at the fourth working position, the controller controls the clothes treatment barrel 1 to rotate, and when the magnetic induction sensor 51 outputs a signal, the controller controls the clothes treatment barrel 1 to stop rotating; the driving mechanism 4 drives the mandril 32 to move upwards to a third working position, the controller controls the clothes treatment barrel 1 to rotate reversely, when the magnetic induction sensor 51 does not output signals, the reverse rotation time T of the clothes treatment barrel 1 is recorded, when the T is more than or equal to T0, the blocking piece 12 is contacted with the positioning part 313 to realize the positioning of the water outlet 11, the sealing part 312 is positioned right below the water outlet 11, and the controller controls the clothes treatment barrel 1 to stop rotating;

the included angle between the connecting line of the magnetic induction sensor 51 and the center of the clothes processing barrel 1 and the connecting line of the drainage device and the center of the clothes processing barrel 1 is alpha; t0 is determined according to α and the rotation speed of the driving motor of the laundry treating tub 1, ensuring that the positioning part 313 hits the stopper 12 in T0.

The driving mechanism 4 drives the rod 32 to move upwards to the first working position, the water outlet 11 is closed, and the laundry treating tub 1 can be filled with water and the laundry is washed.

< control method >

As shown in fig. 6, the present embodiment further provides a control method of any one of the above washing machines, including:

s1, starting the washing machine and acquiring a detection signal of the detection piece;

s2, determining the position of the mandril 32 corresponding to the detection signal;

and S3, controlling the washing machine to run a target program corresponding to the position of the push rod 32.

Furthermore, when the detecting element detects different detecting signals, the detecting element corresponds to different positions of the ejector rod 32, and further corresponds to different positions of the sealing element 31; s2 includes:

s21, comparing the detection signal with a preset signal;

s22, when the detection signal is the first detection signal, determining that the ejector rod 32 is in the first working position and the sealing part 312 of the sealing member 31 and the water outlet 11 are in a contact state of closing the water outlet 11;

s23, when the detection signal is a second detection signal, determining that the ejector rod 32 is in a second working position, and the sealing part 312 of the sealing member 31 and the water discharge opening 11 are in a separation state of opening the water discharge opening 11;

s24, when the detection signal is the third detection signal, determining that the mandril 32 is at the third working position, and when the magnetic induction sensor 51 outputs the signal, controlling the clothes processing barrel 1 to rotate and enabling the positioning part 313 of the sealing member 31 to be in a contact state with the blocking member 12;

s25, when the detection signal is a fourth detection signal, determining that the ejector rod 32 is in a fourth working position and the positioning part 313 of the sealing element 31 is separated from the blocking piece 12;

in conclusion, the process of opening, positioning and closing the water outlet 11 is simple, the water outlet 11 is opened quickly, the positioning is accurate, the sealing is tight, the integration of opening, positioning and sealing of the water outlet 11 is realized, the stroke stop position is arranged in the motion direction of the ejector rod 32, the problem that the sealing element 31 is damaged when the stroke of the ejector rod 32 exceeds the stroke stop position is solved, and the washing mode and the dehydration mode of the washing machine are optimized.

Further, depending on the position of the sealing member 31, different strategies may be implemented, including different modes of controlling the operation of the drain, the rotation of the laundry treating tub 1 and the operation of the washing machine; s3 includes:

s31, when the mandril 32 is at the first working position, controlling the driving mechanism 4 to stop running and controlling the washing machine to run the washing mode to wash clothes;

s32, when the ejector rod 32 is located at the second working position, the driving mechanism 4 is controlled to stop running and give an alarm, and the problem that the sealing element 31 is damaged due to the failure of the driving mechanism 4 is solved;

s33, when the ejector rod 32 is located at the third working position, controlling the driving mechanism 4 to drive the ejector rod 32 to move downwards to a fourth working position;

s34, when the mandril 32 is at the fourth working position, the clothes processing barrel 1 is controlled to rotate; when the magnetic induction sensor 51 outputs a signal, the clothes treatment barrel 1 is controlled to stop rotating, the driving mechanism 4 is controlled to drive the mandril 32 to move upwards to the third working position, the clothes treatment barrel 1 is controlled to rotate, the positioning part 313 is contacted with the blocking part 12, and the clothes treatment barrel 1 is controlled to stop rotating; continuously controlling the driving mechanism 4 to drive the mandril 32 to move upwards to the first working position, and controlling the driving mechanism 4 to stop running and the washing machine to run in a washing mode;

and returning to the fourth working position from the third working position, and repositioning to ensure the positioning accuracy.

Further, the control method further includes:

s4, when the washing machine finishes the washing mode, controlling the driving mechanism 4 to drive the mandril 32 to move downwards to the fourth working position, and draining the clothes processing barrel 1; the residual water in the clothes can be removed by controlling the rotation of the clothes treating barrel 1;

after the drainage is finished, the driving mechanism 4 is controlled to drive the mandril 32 to move upwards to the first working position to prepare for the next washing.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (12)

1. A washing machine including a laundry treating tub having a tub bottom formed with a drain opening, a controller, and a drain device disposed below the drain opening, the drain device comprising:

a sealing member provided with a sealing portion for opening and closing engagement with the drain port;

one end of the ejector rod is connected with the sealing part and can be controlled to move; the ejector rod is provided with a first working position and a second working position in the movement direction of the ejector rod, the first working position is an upper stop position of the ejector rod, and the second working position is a lower stop position of the ejector rod;

the driving mechanism can drive the ejector rod to move;

the detection piece is arranged on a motion path of the ejector rod, is electrically connected with the controller, and is used for detecting the position of the ejector rod and transmitting a detection signal to the controller; the controller can determine the position of the ejector rod according to the detection signal so as to determine the state of the sealing element;

the driving mechanism drives the ejector rod to move, when the detection signal is a first detection signal, the ejector rod is located at a first working position, and the sealing part and the water outlet are in a contact state of closing the water outlet;

when the detection signal is a second detection signal, the ejector rod is located at a second working position, the sealing part and the water outlet are in a separated state of opening the water outlet, and the controller controls the driving mechanism to stop the ejector rod.

2. The washing machine as claimed in claim 1, wherein the drain device further includes a blocking member provided at a tub bottom of the laundry treating tub; the sealing piece is provided with a positioning part matched with the barrier piece, and the positioning part is positioned on the side part of the sealing part;

the ejector rod is also provided with a third working position and a fourth working position in the moving direction;

the driving mechanism drives the ejector rod to move, when the detection signal is a third detection signal, the ejector rod is located at a third working position, the sealing part and the water outlet are in a separation state of opening the water outlet, the positioning part is further in a contact state with the blocking part, and the sealing part is located below the water outlet;

when the detection signal is a fourth detection signal, the ejector rod is located at a fourth working position, the sealing part and the water outlet are in a separation state of opening the water outlet, and the positioning part and the blocking part are in a separation state.

3. The washing machine as claimed in claim 2, wherein a fourth trigger position, a third trigger position, a first trigger position and a second trigger position are formed at one end of the top bar in sequence along the moving direction of the top bar; the first trigger bit and the second trigger bit are arranged oppositely;

the detection piece is a positioning switch and comprises a first positioning switch and a second positioning switch, the first positioning switch corresponds to the first trigger position, the third trigger position and the fourth trigger position, and the second positioning switch corresponds to the second trigger position and the third trigger position;

the driving mechanism drives the ejector rod to move, and when the first positioning switch is in contact with a first trigger position and enables the first positioning switch to be disconnected, and the second positioning switch is in contact with a second trigger position and enables the second positioning switch to be disconnected, the controller judges that the detection signal is a first detection signal;

when the first positioning switch is in contact with a fourth trigger position and the first positioning switch is switched off, and the second positioning switch is in contact with a third trigger position and the second positioning switch is switched off, the controller judges that the detection signal is a second detection signal;

when the first positioning switch is in contact with a third trigger position and the first positioning switch is closed, and the second positioning switch is in contact with a second trigger position and the second positioning switch is disconnected, the controller judges that the detection signal is a third detection signal;

when the first positioning switch is in contact with the third trigger position and the first positioning switch is closed, and the second positioning switch is in contact with the third trigger position and the second positioning switch is closed, the controller judges that the detection signal is a fourth detection signal.

4. A washing machine as claimed in any one of claims 1 to 3, further comprising a water collecting member disposed below the water discharge opening; a first bracket is formed at the bottom of the water collecting piece, the first bracket is surrounded to form an installation position, and the drainage device is arranged at the installation position; a first fixing part is formed at the bottom of the first bracket;

the drainage device further comprises a second support arranged at the bottom of the first support, the second support is provided with a mounting plate, the bottom of the sealing element is arranged between the first fixing part and the mounting plate, and a labyrinth sealing structure is formed between the first fixing part and the mounting plate.

5. The washing machine as claimed in claim 4, wherein a plurality of second fixing parts are formed at a side of the mounting plate facing the first bracket, and a restriction groove is formed between two adjacent second fixing parts; the bottom of the sealing element is provided with a limiting part, the structure of the limiting part is matched with that of a limiting groove, and the limiting part and the first fixing part are embedded in the limiting groove, so that the labyrinth sealing structure is formed among the limiting part, the second fixing part and the limiting groove.

6. The washing machine as claimed in claim 5, wherein the mounting plate is formed with one of a positioning hole or a positioning column at the position limiting groove, and the position limiting part is formed with the other of the positioning hole or the positioning column; when the limiting part is embedded in the limiting groove, the positioning column is matched with the positioning hole to position the sealing element on the mounting plate.

7. The washing machine as claimed in claim 4, wherein the mounting plate is formed with a guide part formed with a guide hole at a side thereof facing the sealing member; the driving mechanism comprises a traction rope, a traction motor and an elastic piece; one end of the traction rope is connected with a traction motor, and the other end of the traction rope is connected with the bottom of the ejector rod; the top of the ejector rod penetrates through the guide hole and is connected with the sealing part; the elastic piece is sleeved outside the ejector rod, one end of the elastic piece is connected with the guide part, and the other end of the elastic piece is connected with the top of the ejector rod;

the traction motor rotates, the ejector rod moves to a second working position under the action of the traction rope, and the elastic piece is compressed to store energy; when the ejector rod is at a second working position, the ejector rod is explained to move to a lower stop position, and the controller controls the traction motor to stop the ejector rod and give an alarm;

when the traction motor rotates reversely, the elastic piece releases energy and drives the ejector rod to move upwards to a fourth working position, the sealing part and the water outlet are in a separated state of opening the water outlet, and the clothes treatment barrel can drain water;

the elastic piece continuously releases energy and drives the ejector rod to continuously move upwards to a third working position, and when the positioning part of the sealing piece is in a contact state with the blocking piece, the sealing part is positioned below the water outlet;

when the elastic piece continuously releases energy and drives the ejector rod to continuously move upwards to the first working position, the ejector rod is explained to move to the upper stop position, the sealing part and the water outlet are in a contact state of closing the water outlet, and the washing machine can run in a washing mode to wash clothes.

8. A washing machine as claimed in claim 7, wherein the water collecting member is provided with one of a magnetic induction sensor and a magnet, the bottom of the laundry treatment tub is provided with the other of the magnetic induction sensor and the magnet, and the magnetic induction sensor and the magnet are in the same preset cylindrical surface, which is coaxial with the laundry treatment tub; the magnetic induction sensor is electrically connected with the controller;

the clothes processing barrel rotates, and when the magnetic induction sensor outputs a signal, the controller controls the clothes processing barrel to stop rotating; the driving mechanism drives the mandril to move upwards to a third working position, the controller controls the clothes processing barrel to rotate and enables the positioning part to be in contact with the blocking part, and then the sealing part is positioned below the water outlet.

9. A control method of a washing machine according to any one of claims 1 to 8, characterized in that the control method comprises:

starting the washing machine and acquiring a detection signal of the detection piece;

determining the position of the ejector rod corresponding to the detection signal;

and controlling the washing machine to operate a target program corresponding to the position of the ejector rod.

10. The control method of a washing machine according to claim 9, wherein the determining the position of the knock bar corresponding to the detection signal includes:

comparing the detection signal with a preset signal;

when the detection signal is a first detection signal, determining that the ejector rod is at a first working position, and the sealing part of the sealing element and the water outlet are in a contact state of closing the water outlet;

when the detection signal is a second detection signal, determining that the ejector rod is at a second working position, and the sealing part of the sealing element and the water outlet are in a separation state of opening the water outlet;

when the detection signal is a third detection signal, determining that the mandril is at a third working position, and when the magnetic induction sensor outputs a signal, controlling the clothes processing barrel to rotate and enabling the positioning part of the sealing element to be in a contact state with the blocking part;

and when the detection signal is a fourth detection signal, determining that the ejector rod is at a fourth working position, and the positioning part of the sealing element is separated from the blocking part.

11. The control method of a washing machine according to claim 10, wherein the controlling the washing machine to run the target program corresponding to the position of the top bar comprises:

when the ejector rod is positioned at a first working position, controlling the driving mechanism to stop running and the washing machine to run in a washing mode;

when the ejector rod is located at a second working position, the driving mechanism is controlled to stop running and give an alarm;

when the ejector rod is located at a third working position, controlling the driving mechanism to drive the ejector rod to move downwards to a fourth working position;

when the ejector rod is located at a fourth working position, the clothes processing barrel is controlled to rotate; when the magnetic induction sensor outputs signals, the clothes treatment barrel is controlled to stop rotating, the driving mechanism is controlled to drive the mandril to move upwards to a third working position, the clothes treatment barrel is controlled to rotate, the positioning part is contacted with the blocking part, and the clothes treatment barrel is controlled to stop rotating; and continuously controlling the driving mechanism to drive the mandril to move upwards to a first working position, and controlling the driving mechanism to stop running and the washing machine to run in a washing mode.

12. The control method of a washing machine according to claim 11, further comprising:

and when the washing mode of the washing machine is finished, controlling the driving mechanism to drive the ejector rod to move downwards to a fourth working position, and draining water from the clothes treatment barrel.

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