Defoaming device and washing machine

Abstract

The present invention provides a defoaming device and a washing machine, wherein the defoaming device comprises: a shell having a bubble inlet and a bubble outlet, wherein the bubble inlet is used to communicate with a washing volume of a cleaning device, and the bubble outlet is used to connect with a drain pipe of the cleaning device; a defoaming component is rotatably arranged and assembled in the shell, and is used to controllably suck the foam formed in the washing volume into the shell and crush it. The defoaming device provided by the present invention, by arranging the defoaming component, allows the foam in the washing volume to flow into the interior of the shell from the bubble inlet, and to flow out of the shell from the bubble outlet and then be discharged from the cleaning device through the drain pipe. As a result, the amount and volume of the foam flowing out of the bubble outlet are reduced compared to the foam entering from the bubble inlet, which is conducive to achieving the purpose of rapid defoaming.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, in particular to a defoaming device and a washing machine. Background Art

[0002] A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash fabrics. When a user uses a washing machine to wash fabrics, it is necessary to put washing powder or liquid into the inner drum of the washing machine to assist the mechanical force of the washing machine to wash the fabrics.

[0003] During the washing process, if too much washing powder is added, a large amount of foam will be generated, which not only affects the washing effect, but also affects the rinsing and dehydration effects, and is also prone to overflowing foam. Existing washing machines usually adopt the method of spraying water on the fabrics to eliminate foam after washing is completed.

[0004] However, the defoaming method of spraying water on the fabric will lead to a waste of water resources. Summary of the invention

[0005] The embodiment of the present invention provides a defoaming device and a washing machine, which are used to solve the problem that the existing defoaming method of spraying water on fabrics will cause waste of water resources.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] One aspect of an embodiment of the present invention provides a defoaming device, comprising a shell having a bubble inlet and a bubble outlet, wherein the bubble inlet is used to communicate with a washing chamber of a cleaning device, and the bubble outlet is used to connect to a drain pipe of the cleaning device; a defoaming component is rotatably assembled in the shell and is used to controllably suck the foam formed in the washing chamber into the shell and crush it.

[0008] In one possible implementation manner, the rotating shaft is rotatably assembled in the shell and is coaxial with the shell; the blades are arranged on the outer wall of the rotating shaft and rotate together with the rotating shaft.

[0009] In one possible implementation, a fixing frame is provided between the defoaming component and the bubble outlet, the fixing frame is provided with a water trough for liquid to flow through, and there is a gap between the fixing frame and the defoaming component.

[0010] In one possible implementation manner, the first section of the shell located between the bubble inlet and the defoaming component is in the shape of a right cone.

[0011] In one possible implementation manner, the second section of the shell located between the bubble outlet and the defoaming component is in an inverted cone shape.

[0012] In one possible implementation manner, the foam inlet is provided with a bundling head facing the washing cavity, and the distance from the edge of the bundling head to the axis thereof gradually decreases along the flow direction of the foam.

[0013] In one possible implementation manner, the bundling head is provided with a plurality of through holes.

[0014] In one possible implementation manner, one end of the clustering head close to the inner tube is in a strip shape; or one end of the clustering head close to the inner tube is in a round shape.

[0015] A washing machine comprises a machine body and a defoaming device as described in any one of the above items, wherein the machine body comprises a casing, an outer drum and an inner drum, the outer drum is installed inside the casing, the inner drum is rotatably assembled inside the outer drum, the defoaming device is arranged between the outer drum and the inner drum, and there is a gap between the defoaming device and the drum wall of the inner drum.

[0016] In one possible implementation, it also includes a detector and a controller electrically connected to the defoaming component, and the detector and the controller are arranged in the housing; when the detector detects that the foam in the inner drum exceeds a preset value, the controller controls the defoaming component to start, so as to suck the foam formed in the washing cavity into the shell and crush it.

[0017] The defoaming device and washing machine provided by the present invention are provided with a defoaming component and form an air flow through the defoaming component, so that the foam in the inner drum flows into the interior of the shell from the bubble inlet, flows out of the shell from the bubble outlet, and is discharged from the washing machine through the drain pipe. In addition, the foam entering the shell is ground and crushed, so that the foam flowing out of the bubble outlet is reduced in quantity and volume compared with the foam entering from the bubble inlet, which can help reduce the quantity of foam in the drain pipe and is more conducive to the water flow speed of the drain pipe, thereby achieving the purpose of rapid defoaming.

[0018] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 A system block diagram of a washing machine provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a defoaming device provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a cluster head provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of another bundling head provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of an inner drum, an outer drum and a bundling head of a drum washing machine provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of an inner drum, an outer drum and a clustering head of a pulsator washing machine provided in an embodiment of the present invention;

[0026] Figure 7 A configuration method of a clustering head is provided in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1-shell; 11-bubble inlet; 12-bubble outlet; 13-first section; 14-grinding section; 15-second section;

[0029] 2- Rotating shaft;

[0030] 3-leaf;

[0031] 4-fixed frame; 41, sink;

[0032] 5-clustering head; 51-through hole;

[0033] 6-Inner cylinder;

[0034] 7-Outer cylinder;

[0035] 8- detector;

[0036] 9- Controller;

[0037] 10-Defoam and transpose.

[0038] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] The defoaming device provided in the embodiment of the present invention is applied to a washing machine. Of course, the defoaming device can also be used in devices for removing excess foam, such as dishwashers. The embodiment of the present invention is only described by taking the defoaming device applied in a washing machine as an example, but it does not mean that the present invention is limited to this.

[0042] It should be noted that washing machines include pulsator washing machines and drum washing machines. Among them, the pulsator washing machine is a washing machine in which the pulsator arranged in the inner drum rotates relative to the inner drum, so that the water in the inner drum forms a vortex, thereby driving the clothes in the inner drum to move, so that friction occurs between the clothes and between the clothes and the inner wall of the inner drum, thereby achieving the purpose of washing the clothes. An outer drum is sleeved on the outer side of the inner drum of the pulsator washing machine, and the inner drum can rotate relative to the outer drum. A plurality of small holes are arranged on the side wall of the inner drum, and water can flow between the outer drum and the inner drum through these small holes.

[0043] The drum washing machine also comprises an outer drum and an inner drum rotatably arranged inside the outer drum, and the inner drum can also rotate relative to the outer drum. The drum wall of the inner drum of the drum washing machine is also provided with a plurality of small holes, and water can also flow between the outer drum and the inner drum through these small holes.

[0044] Optionally, Figure 1 A system block diagram of a washing machine provided by an embodiment of the present invention, such as Figure 1 As shown, the body of the washing machine may be provided with a foam detector 8 and a controller 9. The detector 8, the controller 9 and the defoaming device are electrically connected. During the washing process of the washing machine, or when the drain pipe is not drained after washing, or when the drain pipe is drained after washing, or during the dehydration process, the detector 8 can detect the amount of foam at the liquid level of the inner drum 6 and output the detection value. The detector 8 can receive the detection value and compare the detection value with a preset value.

[0045] When the detection value is greater than the preset value, the controller 9 outputs a start signal to the defoaming device, and the defoaming device receives the start signal and starts to eliminate the excess foam in the inner cylinder 6; when the detection value is less than the preset value, the controller 9 outputs a shut-down signal to the defoaming device, and the defoaming device receives the shut-down signal and stops defoaming. When the detection value is equal to the preset value, the defoaming device can be started or shut down, depending on the specific situation.

[0046] The specific structure of the defoaming device provided by the present invention is described below in conjunction with the accompanying drawings.

[0047] Continue as Figure 2 As shown, the defoaming device includes a housing 1 and a defoaming component disposed inside the housing 1. The housing 1 has a bubble inlet 11 and a bubble outlet 12, the bubble inlet 11 is connected to the inner drum 6 of the washing machine, and the bubble outlet 12 is connected to the drain pipe of the washing machine. The defoaming component can be rotatably disposed in the housing 1. The defoaming component can form an airflow to make the foam flow from the bubble inlet 11 to the bubble outlet 12, and grind the foam.

[0048] As can be seen from the structure of the washing machine described above, the inner drum 6 is arranged on the inner side of the outer drum 7, and a gap is arranged between the inner drum 6 and the outer drum 7. The side wall of the inner drum 6 is provided with a number of small holes. Therefore, the "bubble inlet 11 is connected to the inner drum 6 of the washing machine" mentioned above means that the bubble inlet 11 is connected to the gap between the inner drum 6 and the outer drum 7 of the washing machine. That is, the housing 1 can be arranged on the outer drum 7, and the bubble inlet 11 is arranged toward the side wall of the inner drum 6. The foam in the inner drum 6 can pass through the small holes opened on the inner drum 6 into the gap between the inner drum 6 and the outer drum 7, and enter the interior of the housing 1 through the bubble inlet 11.

[0049] That is to say, the defoaming device and washing machine provided by the present invention are provided with a defoaming component and form an airflow through the defoaming component, so that the foam in the inner drum 6 flows into the interior of the shell 1 from the bubble inlet 11, flows out of the shell 1 from the bubble outlet 12 and is discharged from the washing machine through the drain pipe, and the foam entering the shell 1 is ground so that the amount and volume of the foam flowing out of the bubble outlet 12 are reduced compared with the foam entering from the bubble inlet 11, which can help reduce the amount of foam in the drain pipe and is more conducive to the water flow speed of the drain pipe, thereby achieving the purpose of rapid defoaming.

[0050] As can be seen from the above, the defoaming component has two functions on the foam in the inner cylinder 6. One is to collect the foam in the inner cylinder 6; the other is to grind the foam collected in the shell 1 to reduce the volume of the foam or even eliminate it.

[0051] It should be noted that the defoaming device can not only be used for defoaming, but also participate in the discharge of hot waste gas in the inner drum 6 during air washing or drying. For example, the waste heat containing a large amount of water vapor in the inner drum 6 is discharged out of the machine body by negative pressure extraction, so as to facilitate the drying of clothes and improve the working efficiency of the washing machine, saving energy. Optionally, the controller mentioned above can switch between different modes.

[0052] The structure of the defoaming component is introduced below.

[0053] Continue as Figure 2 As shown, the defoaming component includes a rotating shaft 2 and blades 3. The housing 1 has a central axis, the rotating shaft 2 is coaxial with the central axis, and is rotatably arranged in the housing 1. The blades 3 are arranged on the outer wall of the rotating shaft 2 and can rotate with the rotation of the rotating shaft 2.

[0054] That is to say, the function of the defoaming component in collecting foam is equivalent to a negative pressure fan. Among them, the blades 3 of the defoaming component rotate and discharge gas to the outside, so that the air pressure in the shell 1 drops, the air in the shell 1 becomes thin, and a negative pressure is formed in the shell 1. The gas in the inner cylinder 6 flows into the shell due to the pressure difference compensation, forming an airflow from the bubble inlet 11 to the bubble outlet 12. The airflow can carry the foam in the inner cylinder 6 into the shell 1, and drive the foam to interact with the rotating blades 3 to destroy the tension on the foam surface, so that the foam quickly breaks into droplets and flows out of the shell 1 from the bubble outlet 12.

[0055] In addition, since the blade 3 rotates in the housing 1, a gap is provided between the blade 3 and the inner wall of the housing 1. Foam entering the gap can be ground by the outer periphery of the blade 3. The end of the blade 3 facing the foam inlet 11 can also grind the foam in contact with it.

[0056] In addition, the defoaming device also participates in the water intake of the washing machine. For example, the bubble outlet 12 is connected to the water inlet pipe provided with a water pump and a water inlet valve, and the rotating shaft 2 does not rotate at this time. One end of the water inlet pipe can be connected to a water source. Under the action of the water pump, the water from the water source enters the housing 1 through the bubble outlet 12, and then sprays to the wall of the inner drum 6 through the bubble inlet 11 to supply water to the inner drum. That is, the flow direction of the water supplying the inner drum 6 is opposite to the flow direction of the foam. The water intake function can also be switched by the controller. That is, when water is intaken, the controller obtains the water intake signal to the water pump, the water intake valve and the rotating shaft 2, the water pump and the water intake valve receive the water intake signal to open, and the defoaming device receives the water intake signal to stop the rotation of the rotating shaft 2.

[0057] Optionally, a plurality of blades 3 may be provided, and the plurality of blades 3 may be evenly distributed around the circumference of the rotating shaft 2 to improve the grinding efficiency and increase the wind speed generated by the defoaming component.

[0058] Optionally, multiple groups of blades 3 may be provided along the axial direction of the rotating shaft 2, and different groups of blades 3 have different distances from the bubble inlet 11. The corresponding positions of two adjacent groups of blades 3 in the circumferential direction of the rotating shaft 2 may be different, so as to improve the grinding surface.

[0059] Optionally, the surface of the blade 3 may be provided with a plurality of protrusions so as to increase the friction between the blade 3 and the foam, thereby facilitating the destruction of the tension on the foam surface and improving the grinding effect.

[0060] Optionally, the rotation of the rotating shaft 2 can be controlled electrically or manually. For example, when a motor is selected to control the rotation of the rotating shaft 2, the motor shaft of the motor is connected to the rotating shaft 2. The motor can be miniature and have good sealing and water discharge performance so that it can be used in a water environment. In addition, the motor can be powered by a battery or an external power supply. It can be electrically connected to the controller 9 of the washing machine mentioned above, and drive the rotating shaft 2 to rotate when the detection value is greater than the preset value. When the detection value is less than the preset value, the rotation of the rotating shaft 2 is stopped.

[0061] Optionally, a fixing frame 4 is provided between the defoaming component and the bubble outlet 12 , the fixing frame 4 has a water tank 41 for liquid to flow through, and a preset gap is provided between the fixing frame 4 and the defoaming component.

[0062] The foam enters the housing 1 from the bubble inlet 11 and is ground by the end of the blade 3 near the bubble inlet 11 and the outer periphery of the blade 3. The fixed frame 4 is provided to retain the unground foam on the fixed frame 4, so that the foam in the preset gap between the fixed frame 4 and the blade 3 contacts the end of the blade 3 near the bubble outlet 12 and is further ground by the blade 3 at this end. This makes the defoaming component grind the foam more thoroughly. In addition, the ground foam becomes droplets and flows out of the housing 1 from the bubble outlet 12 through the water tank 41 of the fixed frame 4.

[0063] Optionally, the fixing frame 4 has various shapes, which are not specifically limited here. Figure 2 The fixing frame 4 is shown as an example in the figure of a cross.

[0064] Optionally, both ends of the fixing bracket 4 may be connected to the inner wall of the housing 1 so as to achieve the installation of the fixing bracket 4. In addition, the fixing bracket 4 may also be used to install the motor mentioned above.

[0065] The structure of the housing 1 will be described below.

[0066] Continue as Figure 2As shown, the housing 1 includes a grinding section 14, which is hollow so as to form a grinding cavity for placing the defoaming component. Optionally, a first section 13 is provided between the grinding section 14 and the foam inlet 11. The first section 13 is also hollow, and is provided with a first cavity, which is connected to the grinding cavity, so that the foam is guided from the foam inlet 11 through the first cavity into the grinding cavity.

[0067] The first section 13 may be conical, and the cross-sectional radius of the first section 13 gradually increases along the foam flow direction. That is, before the foam contacts the blade 3 from the foam inlet 11, the foam needs to be dispersed first, so that the foam contacts different positions of the blade 3, which is beneficial to increase the number of blades 3 contacting the foam per unit time, so as to improve the grinding efficiency.

[0068] Optionally, a second section 15 is provided between the grinding section 14 and the foam outlet 12. The second section 15 is also hollow and has a second cavity connected to the grinding cavity, so that the foam is guided from the grinding cavity through the second cavity and flows out of the foam outlet 12.

[0069] The second section 15 may be conical, and the cross-sectional radius of the second section 15 gradually decreases along the foam flow direction. That is, after the foam contacts the blades 3, it breaks into droplets, and the droplets are concentrated to fit the drain pipe of the washing machine, that is, to facilitate the droplets to flow out of the foam outlet 12 and enter the drain pipe of the washing machine.

[0070] Optionally, Figure 3 A schematic diagram of the structure of a bundling head 5 provided in an embodiment of the present invention, Figure 4 A schematic diagram of the structure of another bundling head 5 provided in an embodiment of the present invention is shown in FIG. Figure 2-Figure 4 As shown, the bubble inlet 11 is provided with a bundling head 5. The bundling head 5 is provided with a plurality of through holes 51. That is to say, under the action of the defoaming component, the foam in the inner cylinder 6 enters the shell 1 through the through holes 51 of the bundling head 5. The diameter of the through holes 51 is small, and the spacing between two adjacent through holes 51 can be arranged closely, so as to facilitate preliminary defoaming before the defoaming component defoams. In addition, since the through holes 51 are very small, the wire scraps or hard objects in the inner cylinder 6 can be intercepted to prevent the shell from being blocked or the defoaming component in the shell 1 from being damaged.

[0071] In addition, the clustering head 5 can not only play a role in preliminary defoaming, but also play a role in flushing the wall of the inner drum 6 to achieve a cleaning effect on the wall of the inner drum 6 to prevent the adhesion of stains and the growth of bacteria during long-term use of the washing machine.

[0072] For example, when flushing the wall of the inner cylinder 6, the bubble outlet 12 is connected to the water inlet pipe provided with a water pump, and the rotating shaft 2 does not rotate at this time. One end of the water inlet pipe can be connected to a water source, and under the action of the water pump, water from the water source enters the housing 1 through the bubble outlet 12, and then passes through the bubble inlet 11 and the through hole 51 on the clustering head 5 to spray out of the wall of the inner cylinder 6. That is, the flow direction of the water flow used to flush the inner cylinder 6 is opposite to the flow direction of the foam.

[0073] The front end of the bundling head 5, that is, the end of the bundling head 5 close to the inner drum 6, may be arranged in the gap between the inner drum 6 and the outer drum 7 of the washing machine. A preset distance may be provided between the front end of the bundling head 5 and the wall of the inner drum 6 to avoid collision with the bundling head 5 when the inner drum 6 rotates.

[0074] In addition, the rear end of the bundling head 5 is connected to the bubble inlet 11. That is to say, the cross-section of the front end of the bundling head 5 can be as large as possible so that more foam can be absorbed per unit time. In addition, the rear end of the bundling head 5 can be installed on the outer cylinder 7, so the cross-section of the rear end of the bundling head 5 can be as small as possible so as to reduce the opening of the outer cylinder 7 and facilitate the installation of the bundling head 5. In addition, the cross-sectional radius of the bundling head 5 can be gradually reduced along the flow direction of the foam. In other words, in the process of the foam moving from the front end of the bundling head 5 to the rear end of the bundling head 5, the cross-sectional radius of the bundling head 5 is gradually reduced, so that the foam collected at the front end of the bundling head 5 can be concentrated so that it can enter the bubble inlet 11.

[0075] Exemplarily, the rear end of the bundling head 5 is connected to the first section 13, and the foam in the inner tube 6 is first concentrated by the bundling head 5, and then dispersed to the blades 3 through the first cavity of the first section 13. Of course, the rear end of the bundling head 5 and the grinding section 14 can also be directly connected.

[0076] It should be noted that the bundling head 5 may or may not be provided at the bubble inlet 11. When the bundling head 5 is not provided, the bubble inlet 11 is the position of the defoaming device closest to the cylinder wall of the inner cylinder 6. When the bundling head 5 is provided, the front end of the bundling head 5 is the position of the defoaming device closest to the cylinder wall of the inner cylinder 6. The following takes the setting of the bundling head 5 as an example to illustrate the setting method of the position of the defoaming device close to the cylinder wall of the inner cylinder 6.

[0077] Continue as Figure 3 and Figure 4 As shown, the front end of the bundling head 5 can be round or strip-shaped. The shape of the front end of the bundling head 5 or the bubble inlet 11 can be changed or adjusted according to the shape of the inner cylinder 6 or the position of the bundling head 5. Figure 3 and Figure 4 Just an example.

[0078] For example, Figure 5 A schematic diagram of an inner drum 6, an outer drum 7 and a clustering head 5 of a drum washing machine provided in an embodiment of the present invention, as shown in FIG. Figure 5 As shown, when the bundling head 5 is set on the drum washing machine, the front end of the bundling head 5 can be set in a long strip shape, and the length direction of the front end of the bundling head 5 is consistent with the axial direction of the inner drum 6 of the drum washing machine, so as to increase the amount of foam entering the foam inlet 11 per unit time.

[0079] It should be noted that, since the density of foam is lighter than that of water, foam will float above the liquid surface of the inner drum 6. The liquid surface of the drum washing machine is above the axis of the inner drum 6, so when the defoaming device is closest to the inner drum 6, that is, when the front end of the bundling head 5 is set, it needs to be set at a position higher than the axis of the inner drum 6. Of course, the front end of the bundling head 5 can also be set at a position higher than two-thirds of the inner drum 6 to further prevent a large amount of water in the inner drum 6 from entering the housing 1.

[0080] Figure 6 A schematic diagram of an inner drum 6, an outer drum 7 and a clustering head 5 of a pulsator washing machine provided in an embodiment of the present invention is shown in FIG. Figure 6 As shown, when the clustering head 5 is set on the pulsator washing machine, the front end of the clustering head 5 can also be set in a long strip shape, and the length direction of the front end of the clustering head 5 is consistent with the circumference of the inner drum 6 of the pulsator washing machine, so as to increase the amount of foam entering the foam inlet 11 per unit time.

[0081] In addition, in the case of a pulsator washing machine, the front end of the bunching head 5 can be arranged at a position higher than one-half of the inner drum 6. Of course, the front end of the bunching head can also be arranged at a position higher than two-thirds of the inner drum 6 to further prevent a large amount of water in the inner drum 6 from entering the housing 1.

[0082] Figure 7 A configuration method of a clustering head 5 is provided in an embodiment of the present invention, such as Figure 5-Figure 7 As shown, the number of the bundling heads 5 can be one or more. Figure 7 Splicing like that forms a longer clustering head 5, so as to reduce processing costs and improve the amount of foam entering. In addition, a plurality of clustering heads 5 can correspond to the same foam assembly, and can also correspond to different foam assemblies.

[0083] The terms "upper" and "lower" etc. are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not intended to limit the scope of implementation of the present invention. Changes or adjustments to the relative relationship shall be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0084] It should be noted that: in the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0085] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A defoaming device, characterized in that: include: A housing having a bubble inlet and a bubble outlet, wherein the bubble inlet is used to communicate with a washing chamber of a cleaning device, and the bubble outlet is used to connect with a drain pipe of the cleaning device; A defoaming component is rotatably mounted in the housing and is used to controllably suck the foam formed in the washing chamber into the housing and crush it; The defoaming component comprises: A rotating shaft, rotatably assembled in the housing and coaxial with the housing; The blades are arranged on the outer wall of the rotating shaft and rotate together with the rotating shaft; the blades rotate and discharge gas outward, so that the gas in the inner cylinder flows into the shell under the action of negative pressure, forming an airflow from the bubble inlet to the bubble outlet, so that the foam in the inner cylinder enters the shell and drives the foam to act on the rotating blades; A fixing frame is arranged between the defoaming component and the bubble outlet, the fixing frame is provided with a water tank for liquid to flow through, and a gap is arranged between the fixing frame and the defoaming component.

2. The defoaming device according to claim 1, characterized in that: The first section of the shell located between the bubble inlet and the defoaming component is in a right cone shape.

3. The defoaming device according to claim 1, characterized in that: The second section of the shell located between the bubble outlet and the defoaming component is in an inverted cone shape.

4. The defoaming device according to claim 1, characterized in that: The foam inlet is provided with a bundling head facing the washing chamber, and the distance from the edge of the bundling head to its axis gradually decreases along the flow direction of the foam.

5. The defoaming device according to claim 4, characterized in that: The clustering head is provided with a plurality of through holes.

6. The defoaming device according to claim 4, characterized in that: The end of the clustering head close to the inner tube is in a long strip shape; or, One end of the clustering head close to the inner cylinder is circular.

7. A washing machine, characterized in that: It comprises a machine body and a defoaming device as described in any one of claims 1 to 6, wherein the machine body comprises a box body, an outer cylinder and an inner cylinder, the outer cylinder is installed inside the box body, the inner cylinder is rotatably assembled inside the outer cylinder, the defoaming device is arranged between the outer cylinder and the inner cylinder, and there is a gap between the defoaming device and the cylinder wall of the inner cylinder.

8. The washing machine according to claim 7, characterized in that: It also includes a detector and a controller electrically connected to the defoaming component, and the detector and the controller are arranged in the box; When the detector detects that the foam in the inner drum exceeds a preset value, the controller controls the defoaming component to start, so as to suck the foam formed in the washing cavity into the shell and crush it.

Images