CN114318785A - Washing apparatus and control method - Google Patents

Abstract

The application provides a washing device and a control method, wherein the washing device comprises: the washing machine comprises a barrel body, a water inlet pipe, a drainage inner pipe and a pump body, wherein the barrel body is used for accommodating washings; the water outlet end of the water inlet pipe is communicated with the barrel body; one end of the drainage inner pipe is communicated with the barrel body; the pump body is connected respectively the end of intaking of inlet tube and the other end of drainage inner tube, the pump body is used for washing equipment passes through the water in the drainage inner tube suction bucket extremely the play water end of inlet tube when satisfying the defoaming condition. When the washing equipment needs to be defoamed, water in the washing equipment barrel is pumped to the water inlet pipe through the pump body, and foam in the barrel is flushed through the water outlet end of the water inlet pipe, so that the washing effect of the washing equipment is improved.

Description

Washing apparatus and control method

Technical Field

The application belongs to the technical field of washing equipment, and particularly relates to washing equipment and a control method.

Background

With the progress of science and technology and the improvement of living standard of people, washing equipment such as a washing machine is more and more common, the condition that a large amount of foams are generated due to excessive detergent input of a user easily occurs in the working process of the washing equipment, and the conditions that the motor resistance is large, the temperature rise is excessive, excessive foams overflow, the washing machine stops running and the like influence the washing effect in the washing process are caused by the large amount of foams.

Disclosure of Invention

The embodiment of the application provides a washing equipment, can avoid washing equipment to produce a large amount of foams in the work, improves washing equipment's washing effect.

An embodiment of the present application provides a washing apparatus, including:

a tub for accommodating laundry;

the water outlet end of the water inlet pipe is communicated with the barrel body;

one end of the drainage inner pipe is communicated with the barrel body;

the pump body, connect respectively the end of intaking of inlet tube and the other end of drainage inner tube, the pump body is used for washing equipment passes through the water in the drainage inner tube suction bucket extremely the play water end of inlet tube when satisfying the defoaming condition.

Optionally, the washing equipment still includes the defoaming box, the defoaming box set up in the play water end of inlet tube, the one end of defoaming box is provided with the inlet opening, the inlet opening with the play water end intercommunication of inlet tube, the other end of defoaming box is provided with a plurality of apopores, a plurality of apopores with the staving intercommunication.

Optionally, the area of the water inlet hole is larger than the area of the plurality of water outlet holes.

Optionally, the barrel body includes a door seal disposed around the barrel opening, the door seal includes a bottom portion adjacent to the pump body and a top portion opposite to the bottom portion, and the defoaming box is disposed at the top portion.

Optionally, the defoaming box including be provided with the diapire of a plurality of apopores and with the roof that the diapire is connected, the diapire is the arc, the diapire with the door seals the laminating.

Optionally, the washing device further includes an air suction pipe, one end of the air suction pipe is communicated with the barrel body, the other end of the air suction pipe is communicated with the pump body, and the pump body is further configured to suck gas in the barrel body through the air suction pipe when the drainage inner pipe drains water, so that negative pressure is formed in the barrel body.

Optionally, the height of the position where the air suction pipe is connected with the barrel body is higher than the height of the maximum water level of the barrel body.

The embodiment of the application provides a control method, which is applied to washing equipment, wherein the washing equipment is the washing equipment, and the method comprises the following steps:

detecting washing parameters of the washing equipment;

and if the washing parameters meet defoaming conditions, pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe.

Optionally, the washing apparatus further includes a motor assembly, the motor assembly is configured to drive the tub to rotate, and the detecting the washing parameter of the washing apparatus includes:

detecting a driving current value of the motor assembly;

if the washing parameter satisfies the defoaming condition, then through the water drainage inner tube suction barrel internal water to the inlet tube includes:

if the driving current value is greater than or equal to a preset threshold value, executing a defoaming function;

and pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe to flush foam in the barrel body.

The embodiment of the application provides a control method, which is applied to washing equipment, wherein the washing equipment is the washing equipment, and the method comprises the following steps:

detecting washing parameters of the washing equipment;

if the washing parameters meet defoaming conditions, pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe;

if the washing parameters meet the drainage condition, the air in the barrel body is sucked through the air suction pipe when the drainage inner pipe drains water, so that negative pressure is formed in the barrel body.

The application provides a washing device and a control method, wherein the washing device comprises: the washing machine comprises a barrel body, a water inlet pipe, a drainage inner pipe and a pump body, wherein the barrel body is used for accommodating washings; the water outlet end of the water inlet pipe is communicated with the barrel body; one end of the drainage inner pipe is communicated with the barrel body; the pump body is connected respectively the end of intaking of inlet tube and the other end of drainage inner tube, the pump body is used for washing equipment passes through the water in the drainage inner tube suction bucket extremely the play water end of inlet tube when satisfying the defoaming condition. When the washing equipment needs to be defoamed, water in the washing equipment barrel is pumped to the water inlet pipe through the pump body, and foam in the barrel is flushed through the water outlet end of the water inlet pipe, so that the washing effect of the washing equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.

Fig. 1 is a schematic structural diagram of a washing apparatus provided in an embodiment of the present application.

Fig. 2 is a schematic structural view of another view of the washing apparatus shown in fig. 1.

Fig. 3 is a schematic structural diagram of the water inlet pipe, the pump body and the defoaming box provided in the embodiment of the present application.

Fig. 4 is an exploded view of the water inlet tube, the pump body and the defoaming box shown in fig. 3.

Fig. 5 is a schematic structural diagram of the defoaming box.

Fig. 6 is an exploded view of the construction of the bubble trap shown in fig. 5.

Fig. 7 is a schematic structural diagram of a pump body, an air suction pipe, a drainage inner pipe, a water inlet pipe and a defoaming box according to an embodiment of the present disclosure.

Fig. 8 is a flowchart illustrating a control method according to an embodiment of the present application.

Fig. 9 is another schematic flow chart of the control method according to the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a washing apparatus according to an embodiment of the present disclosure. Fig. 2 is a schematic structural view of another view of the washing apparatus shown in fig. 1. The embodiment of the application provides a washing device 10, the washing device 10 includes a tub 110, a water inlet pipe 120, a drainage inner pipe 130 and a pump body 140, the tub 110 is used for accommodating washings; the water outlet end 121 of the water inlet pipe 120 is communicated with the barrel body 110; one end of the drain inner pipe 130 is communicated with the tub 110; the pump body 140 is connected to the water inlet end 122 of the water inlet pipe 120 and the other end of the water discharge inner pipe 130, respectively, and the pump body 140 is used for pumping the water in the tub to the water outlet end 121 of the water inlet pipe 120 through the water discharge inner pipe 130 when the washing apparatus 10 meets the defoaming condition.

The pump body that this application embodiment provided can be circulating water pump, circulating water pump can be the vacuum pump, drainage inner tube 130 and inlet tube 120 are connected respectively to the pump body, when the defoaming needs to be carried out at washing equipment 10, pump body 140 pumps the water in the washing equipment staving 110 through drainage inner tube 130, take out the water outlet end 121 to the inlet tube with the water in the staving 110, go out the foam in the staving through the inlet tube, or wash the foam on the washing equipment glass bowl, not only can avoid because foam too much leads to in the staving that the motor resistance is big in the washing process, the temperature rises excessively, excessive foam overflows, the condition of influence washing effect such as washing equipment shut down, the condition that the clothing was dirtied to the residual foam of glass bowl after can also avoiding the washing. Furthermore, because the water in the barrel body is recycled by the circulating water pump to flush the foam, water does not need to enter through a water inlet valve, and the water consumption can be reduced.

In order to improve the defoaming effect, the washing device provided in the embodiment of the present application further includes a defoaming box, please refer to fig. 1 to 6, fig. 3 is a schematic structural diagram of the water inlet pipe, the pump body and the defoaming box provided in the embodiment of the present application, fig. 4 is an exploded schematic diagram of the schematic structural diagram of the water inlet pipe, the pump body and the defoaming box shown in fig. 3, fig. 5 is a schematic structural diagram of the defoaming box, and fig. 6 is an exploded schematic diagram of the structure of the defoaming box shown in fig. 5.

The washing device 10 further comprises a defoaming box 150, the defoaming box 150 is disposed at the water outlet end 121 of the water inlet pipe 120, one end of the defoaming box 150 is provided with a water inlet 151, the water inlet 151 is communicated with the water outlet end 121 of the water inlet pipe 120, the other end of the defoaming box 150 is provided with a plurality of water outlets 152, and the plurality of water outlets 152 are communicated with the barrel body 110. When the washing equipment 10 meets the defoaming condition, the pump body 140 pumps the water in the barrel body to the water outlet end 121 of the water inlet pipe 120 through the drainage inner pipe 130, the water flows into the water inlet hole 151 of the defoaming box 150 from the water outlet end 121 of the water inlet pipe, and flows out from the water outlet holes 152 of the defoaming box 150, because the water outlet holes are communicated with the barrel body 110, the water in the defoaming box 150 can wash the foam in the barrel body, particularly on the glass bowl of the washing equipment 10, so as to form the waterfall washing effect, in order to further improve the defoaming effect, the area of the water inlet hole 151 of the defoaming box 150 is larger than that of the water outlet holes 152, for example, the water outlet holes 152 can be laser printing holes, the water outlet diameter can be 0.1mm-0.2mm, the number of the water outlet holes can be set according to the size of the defoaming box, in an example of 0.2mm, the principle of reducing current-carrying pressurization is adopted, when the water flows through the holes, the water flow is quickly pressurized, and enters the barrel body in a spraying shape, compared with the mode that only part of the barrel body can be washed through the water outlet end of the water inlet pipe, the inside of the barrel body is washed through the defoaming box 150, the water flow speed is high, and the spraying area is large.

The barrel 110 may include a dock seal 111 disposed around the bung, the dock seal 111 including a bottom 1111 adjacent to the pump body 140 and a top 1112 opposite the bottom 1111, the bubble removal cassette 150 being disposed on the top 1112. It can be understood that, in order to improve the washing effect, the defoaming box 150 may be disposed at the top 1112 of the door seal 111 of the washing device, and when the pump body washes water to the defoaming box 150, the water flow may wash the tub 110 from top to bottom, so as to achieve the waterfall washing effect.

In order to facilitate the assembly of the defoaming case 150, the defoaming case 150 includes a bottom wall 153 provided with a plurality of water outlet holes 152 and a top wall 154 connected to the bottom wall 153, the bottom wall 153 and the top wall 154 may be enclosed into a box body, the bottom wall 153 and the top wall 154 may be detachably connected by one or more connection structures 155, wherein the connection structure 155 may include a connection portion 1551 disposed at an edge of the bottom wall 153 and a connection portion 1552 disposed at an edge of the top wall 154, the connection portion 1552 and the connection portion 1551 are engaged with each other so that the top wall 154 and the bottom wall 153 are detachably connected, the connection portion 1552 may be a connection buckle, and the connection portion 1551 may be a protrusion capable of being engaged with the connection buckle. Of course, the connecting pieces and the connecting parts can also be other connecting structures which enable the top wall and the bottom wall of the defoaming box to be detachable. In order to further improve the spraying effect, the bottom wall 153 may be arc-shaped and attached to the arc-shaped door seal, and it can be understood that the door seal is provided with a through hole communicated with the water outlet hole 152, so that the water sprayed from the defoaming box can be sprayed into the barrel 110.

In some embodiments, the bottom wall 153 is provided with a plurality of protruding structures, each protruding structure is provided with one water outlet hole 152, the dock seal 111 can be provided with through holes corresponding to the protruding structures, and each protruding structure can penetrate through the corresponding through hole, so that the stability of assembling the bubble-eliminating box 150 and the dock seal 111 can be improved.

To improve the defoaming effect, the pump body is further connected with a gas suction pipe, please continue to refer to fig. 1, fig. 2 and fig. 7, and fig. 7 is a schematic structural diagram of the pump body, the gas suction pipe, the drainage inner pipe, the water inlet pipe and the defoaming box according to the embodiment of the present application.

The washing apparatus 10 further includes a suction pipe 160, one end 161 of the suction pipe 160 is communicated with the tub 110, the other end 162 of the suction pipe 160 is communicated with the pump body 140, and the pump body 140 is further configured to suck gas in the tub 110 through the suction pipe 160 when the drain inner pipe 130 drains water, so that a negative pressure is formed in the tub 110. The pump body can be circulating water pump, and circulating water pump is the vacuum pump, and the air inlet and the staving of vacuum pump pass through breathing pipe 160 and communicate. Because the washing equipment barrel is a relatively sealed space, when the vacuum pump pumps water in the barrel through the drainage inner pipe 130, the vacuum pump pumps gas in the barrel through the air suction pipe 160 while discharging the water, so that the pressure in the barrel is reduced, a negative pressure is formed, the pressure is lower than that of bubbles, the bubbles are broken, and the defoaming effect is accelerated. In order to ensure that the air suction pipe 160 is not blocked by water, the height of the position where the air suction pipe 160 communicates with the tub is higher than the height of the maximum water level of the tub 110.

The washing apparatus may further include a drainage outer tube, one end of which is connected to the pump body 140 and the other end of which is communicated with the outside of the washing apparatus 10, and when the washing apparatus 10 needs to drain water, the pump body 140 pumps water in the tub 110 to the drainage outer tube through the drainage inner tube 130 and discharges the water in the tub out of the washing apparatus 10 through the drainage outer tube.

The pump body 140 according to the embodiment of the present invention is connected to the water inlet pipe 120, the drain inner pipe 130, the air suction pipe 160, and the drain outer pipe, respectively. When the washing equipment needs defoaming, the pump body 140 pumps the water in the barrel to the water outlet end 121 of the water inlet pipe 120 through the water discharging inner pipe 130. The defoaming box arranged at the water outlet end 121 of the water inlet pipe forms a spraying effect on water flow to flush foam in the barrel body or flush foam on a glass bowl of washing equipment, so that the conditions that the motor resistance is large, the temperature rise is too large, excessive foam overflows, the washing equipment is shut down and the like in the washing process due to excessive foam in the barrel body to influence the washing effect can be avoided, and the condition that clothes are polluted by residual foam in the glass bowl after washing can be avoided. Furthermore, because the water in the barrel body is recycled by the circulating water pump to flush the foam, water does not need to enter through a water inlet valve, and the water consumption can be reduced. The pump body 140 is also used to suck gas in the tub 110 through the suction pipe 160 when the drain inner pipe 130 drains, so that a negative pressure is formed in the tub 110. The pump body can be circulating water pump, and circulating water pump is the vacuum pump, and the air inlet and the staving of vacuum pump pass through breathing pipe 160 and communicate. Because the washing equipment barrel is a relatively sealed space, when the vacuum pump pumps water in the barrel through the drainage inner pipe 130, the vacuum pump pumps gas in the barrel through the air suction pipe 160 while discharging the water, so that the pressure in the barrel is reduced, a negative pressure is formed, the pressure is lower than that of bubbles, the bubbles are broken, and the defoaming effect is accelerated.

It should be noted that, the defoaming required by the washing equipment may be when the washing parameters of the washing equipment meet the defoaming condition, for example, the driving current value of the motor assembly is detected; and if the driving current value is greater than or equal to the preset threshold value, executing a defoaming function, and pumping water in the barrel to the water outlet end of the water inlet pipe through the drainage inner pipe. The defoaming of the washing equipment can also be realized by that when the washing procedure is finished and water drainage is needed each time, if the washing parameters meet the water drainage condition, gas in the barrel body is sucked through the air suction pipe during water drainage of the water drainage inner pipe, so that negative pressure is formed in the barrel body, and the foam in the barrel body is eliminated.

In some embodiments, the washing equipment can further include a heating device, a drying device and an intelligent module, the heating device can heat the washings, and then the sterilization effect is realized, the drying device can dry the dehydrated washings, the intelligent module can be linked with a water inlet device, a heating device, a drying device and the like, the water inlet device, the heating device and the drying device are required by a user, wherein the intelligent module can further include a voice module, and each functional device of the washing equipment can be operated through voice signals.

It is understood that the washing device provided by the embodiment of the present application may be a single drum washing machine, a multiple drum washing machine, or other types of drum washing machines.

Referring to fig. 8, fig. 8 is a schematic flowchart of a control method according to an embodiment of the present disclosure. A control method for a washing apparatus, which may be the washing apparatus described above, the control method comprising:

and 201, detecting washing parameters of the washing equipment.

202, if the washing parameters meet the defoaming condition, pumping the water in the barrel body to the water outlet end of the water inlet pipe through the water discharging inner pipe.

Wherein, washing equipment still includes motor element, and motor element is used for driving the staving to rotate, and the washing parameter that detects washing equipment includes:

detecting the driving current value of the motor assembly;

if the washing parameter satisfies the defoaming condition, then include through the water inlet pipe of the water drainage inner tube suction barrel internal water:

if the driving current value is greater than or equal to a preset threshold value, executing a defoaming function;

the water in the barrel body is pumped to the water outlet end of the water inlet pipe through the drainage inner pipe, and the foam in the barrel body is washed away.

In the practical application scene, when washing equipment appeared a large amount of foams in the washing in-process ladle body, motor pivoted damping increase, and the rotational speed reduces, and the back emf diminishes, and drive current value increases, and when drive current value is more than or equal to and predetermines the threshold value, the main control board will start the defoaming procedure, carries out the defoaming function, and the control pump body is through the play water end of the water of drainage inner tube suction ladle body internal to the inlet tube, erodees the foam in the ladle body.

Referring to fig. 9, fig. 9 is another schematic flow chart of a control method according to an embodiment of the present disclosure.

The embodiment of the application provides a control method, which is applied to washing equipment, wherein the washing equipment can be the washing equipment provided with the air suction pipe, and the control method comprises the following steps:

301, detecting a washing parameter of the washing apparatus.

302, if the washing parameters meet the defoaming condition, pumping the water in the barrel body to the water outlet end of the water inlet pipe through the water discharging inner pipe.

303, if the washing parameters meet the drainage condition, sucking the gas in the barrel body through the air suction pipe when the drainage inner pipe drains water, and forming negative pressure in the barrel body.

In the practical application scene, when a large amount of foams appear in the washing equipment barrel in the washing process, motor pivoted damping increase, the rotational speed reduces, and the back emf diminishes, and drive current value increases, and when drive current value is more than or equal to and predetermines the threshold value, then the washing parameter that detects satisfies the defoaming condition, and the main control board will start the defoaming procedure, carries out the defoaming function, and the control pump body is through the water outlet end of the water inlet pipe of the water outlet inner tube suction barrel in, washes away the foam in the barrel. In order to improve the defoaming effect, the drainage program can be started simultaneously, part of water in the barrel body is discharged through the drainage inner pipe, and meanwhile, gas in the barrel body is sucked through the air suction pipe during drainage of the drainage inner pipe, so that negative pressure is formed in the barrel body, foams in the barrel body are eliminated, when the condition that washing parameters do not meet the defoaming condition is detected, water can be re-fed through the water inlet valve, and the washing program is started again.

If when washing parameter satisfies the drainage condition, all need carry out the drainage if washing procedure finishes at every turn, when detecting the drainage procedure and starting, the pump body passes through the internal gas of breathing pipe suction bucket when drainage of drainage inner tube, make the interior negative pressure that forms of staving, in order to eliminate the foam in the staving, guarantee the cleanness of staving, water in can also the cyclic utilization staving erodees the staving, for example, through the water outlet end of the internal water of drainage inner tube suction bucket to the inlet tube, especially glass bowl erodees in the staving, avoid because leaving over the foam on the glass bowl and making dirty clothes that wash.

The embodiment of the application provides a control method, is applied to washing equipment, compares in other washing equipment and has set up the circulating water pump who connects inlet tube, drainage inner tube, drainage outer tube and breathing pipe simultaneously to form circulation spraying system and negative pressure defoaming system, circulation spraying system can include drainage inner tube, circulating water pump, inlet tube and defoaming box, passes through circulating water pump, inlet tube with the water in the washing equipment barrel, takes out to the inside of defoaming box. The lower part of the defoaming box is provided with a plurality of needle-shaped water outlets penetrating through the door seal, and water flow is sprayed onto a glass bowl of a door cover of the washing equipment to form the waterfall washing effect. Compare in other washing equipment by the direct water intaking of water intaking valve to the staving, through circulating in the spraying system with water cycle to the staving, improved defoaming efficiency and reduced the water consumption. The negative pressure defoaming system can include drainage inner tube, circulation water pump and breathing pipe, and circulation water pump and outer breathing pipe intercommunication, breathing pipe and staving intercommunication, because the washing equipment staving is a relatively sealed space, circulation water pump will suck the gas in the staving when discharging water, make the internal pressure of outer bucket reduce, be less than the pressure of bubble, the bubble breaks, defoaming with higher speed. Meanwhile, if a large amount of foam appears in the washing process, the rotating damping of the motor is increased, the rotating speed is reduced, the counter potential is reduced, the current is increased, when the current is greater than a given value, the main control board starts a defoaming program, the washing equipment simultaneously discharges water and defoams the water, the water inlet valve re-feeds water after the water is discharged, and the washing program is started again.

In some embodiments, the defoaming program of the washing device may also be initiated by other means, for example, when a defoaming program initiation signal is received, the defoaming program may be initiated by a physical key, a virtual key or a voice module provided on the washing device. The starting signal of the defoaming program can also be a starting signal triggered by a calculation result of the washing parameters in the washing equipment through a neural network model, and the starting signal of the defoaming program can also be a starting signal triggered by an image of foam in the barrel body acquired through the camera module.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The washing machine provided by the embodiment of the present application is described in detail above, and the principle and the embodiment of the present application are explained herein by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A washing apparatus, comprising:

a tub for accommodating laundry;

the water outlet end of the water inlet pipe is communicated with the barrel body;

one end of the drainage inner pipe is communicated with the barrel body;

the pump body, connect respectively the end of intaking of inlet tube and the other end of drainage inner tube, the pump body is used for washing equipment passes through the water in the drainage inner tube suction bucket extremely the play water end of inlet tube when satisfying the defoaming condition.

2. The washing device as claimed in claim 1, further comprising a defoaming box disposed at the water outlet end of the water inlet pipe, wherein one end of the defoaming box is provided with a water inlet hole communicated with the water outlet end of the water inlet pipe, and the other end of the defoaming box is provided with a plurality of water outlet holes communicated with the barrel body.

3. The washing apparatus as recited in claim 2 wherein the area of the inlet opening is greater than the area of the plurality of outlet openings.

4. The washing apparatus as recited in claim 2 wherein the tub includes a dock seal disposed around the tub opening, the dock seal including a bottom portion proximate the pump body and a top portion opposite the bottom portion, the bubble removal cassette being disposed at the top portion.

5. The washing apparatus as claimed in claim 4, wherein the defoaming box includes a bottom wall provided with a plurality of water outlet holes and a top wall connected to the bottom wall, the bottom wall is arc-shaped, and the bottom wall is attached to the door seal.

6. The washing apparatus as claimed in any one of claims 1 to 5, further comprising an air suction pipe, one end of the air suction pipe being in communication with the tub, the other end of the air suction pipe being in communication with the pump body, the pump body being further configured to suck air in the tub through the air suction pipe when the drainage pipe is drained, so as to form a negative pressure in the tub.

7. The washing apparatus as claimed in claim 6, wherein a height of a position where the suction pipe is connected to the tub is higher than a height of a maximum water level of the tub.

8. A control method, characterized by being applied to a washing apparatus according to any one of claims 1 to 7, the method comprising:

detecting washing parameters of the washing equipment;

and if the washing parameters meet defoaming conditions, pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe.

9. The method of claim 8, wherein the washing apparatus further comprises a motor assembly for driving the tub to rotate, and the detecting the washing parameter of the washing apparatus comprises:

detecting a driving current value of the motor assembly;

if the washing parameter satisfies the defoaming condition, then through the water drainage inner tube suction barrel internal water to the inlet tube includes:

if the driving current value is greater than or equal to a preset threshold value, executing a defoaming function;

and pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe to flush foam in the barrel body.

10. A control method, characterized by being applied to a washing apparatus according to any one of claims 6 to 7, the method comprising:

detecting washing parameters of the washing equipment;

if the washing parameters meet defoaming conditions, pumping water in the barrel body to the water outlet end of the water inlet pipe through the drainage inner pipe;

if the washing parameters meet the drainage condition, the air in the barrel body is sucked through the air suction pipe when the drainage inner pipe drains water, so that negative pressure is formed in the barrel body.

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