Anti-overflow bubble device of washing equipment and washing equipment

Abstract

The utility model discloses washing equipment and an anti-overflow bubble device thereof, and the anti-overflow bubble device comprises a ventilation pipeline which is provided with a ventilation pipe, one end of the ventilation pipe is provided with a first ventilation port communicated with a washing cavity, and the other end of the ventilation pipe is provided with a second ventilation port communicated with the outside; the anti-overflow foam pipeline is provided with an anti-overflow pipe connected with the vent pipe, a defoaming structure arranged in the anti-overflow pipe, and a communication port connected to one end of the anti-overflow pipe and communicated with the outside; and a floating ball capable of closing the second ventilation opening under the pushing of the foam is arranged in the ventilation pipe. By arranging the floating ball and the foam overflow preventing pipeline, foam overflow can be effectively prevented, and the pressure in the washing cavity can be kept stable. When the foam moves upwards, the floating ball in the vent pipe can seal the second vent hole under the pushing of the foam, so that the foam is prevented from overflowing from the vent pipe; foam enters the anti-overflow foam pipeline from the vent pipe, the defoaming structure can further eliminate the foam possibly entering the anti-overflow foam pipeline, and the effect of double guarantee and foam overflow prevention is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of washing equipment technology, specifically relating to an anti-overflow foam device for washing equipment, and washing equipment having the anti-overflow foam device. Background Technology

[0002] Current washing machines typically have a vent on the outer drum that connects to the atmosphere, connected to a vent pipe. One end of the vent pipe connects to the vent, and the other end connects to the outside of the drum. Generally, the other end of the vent pipe connects to the water inlet assembly. The vent pipe helps balance the air pressure inside and outside the drum, improving the efficiency of the water level sensor and shortening the water intake time. It also releases the air pressure generated during high-speed spin-drying, maintaining the machine's operational stability. However, during the washing process, if the user uses excessive amounts of high-foaming detergent or adds too much detergent, a large amount of foam will be generated inside the drum. Excessive bubbles will enter the water inlet assembly through the vent and vent pipe, or overflow directly outside the washing machine. Alternatively, during the spin-drying process, foam may flow from inside the machine to the outside, affecting user experience and causing significant inconvenience and financial loss.

[0003] Chinese Patent Application No. 201721208932.0 discloses a breathable filter device for a washing machine and a washing machine itself. The breathable filter device includes a breathable pipe connecting the washing machine's water tank and outer drum for ventilation, and a filter structure disposed on the breathable pipe to prevent foam from passing through. By providing a breathable pipe for ventilation and a filter structure to prevent foam from passing through, both ventilation between the outer drum and the outside environment are achieved, while preventing foam from overflowing through the breathable pipe. However, when there is a large amount of foam, it causes foam to overflow from the breathable pipe.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in the prior art by proposing an anti-overflow foam device for washing equipment. By setting up a float ball and an anti-overflow foam pipeline, it can effectively prevent foam overflow and maintain stable pressure inside the washing chamber.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] An anti-overflow foam device for a washing machine, comprising:

[0008] A ventilated duct has a ventilated pipe, a first vent at one end of the ventilated pipe that communicates with the washing chamber, and a second vent at the other end of the ventilated pipe that communicates with the outside.

[0009] An anti-overflow pipe has an anti-overflow pipe connected to the vent pipe, an anti-foaming structure disposed inside the anti-overflow pipe, and a connecting port connected to one end of the anti-overflow pipe and communicating with the outside.

[0010] A float ball is provided inside the vent tube, which can close the second vent when pushed by foam.

[0011] In some embodiments of this application, the vent pipe is arranged vertically, and the float can be reset after moving upward under the action of gravity.

[0012] In some embodiments of this application, an exhaust fan is provided outside the second vent for extracting gas from the washing chamber.

[0013] In some embodiments of this application, the anti-overflow pipeline is provided with a drain outlet that communicates with the anti-overflow pipe and can be used to guide the liquid in the anti-overflow pipe into the washing chamber.

[0014] In some embodiments of this application, when the washing chamber is under negative pressure, the float ball can seal the first vent, and the drain, overflow prevention pipe and connecting port form an auxiliary ventilation pipeline connecting the washing chamber to the outside.

[0015] In some embodiments of this application, a support seat for supporting the float is provided at the upper end of the first vent. The support seat has an arc-shaped surface that matches the float. Under the negative pressure in the washing chamber, the arc-shaped surface can seal with the float.

[0016] In some embodiments of this application, a support base for supporting the float is provided at the upper end of the first vent, and a through hole is provided on the support base to enable communication between the vent pipe and the washing chamber.

[0017] In some embodiments of this application, the defoaming structure has a defoaming body with a plurality of small holes on the defoaming body that can achieve foam rupture.

[0018] In some embodiments of this application, the defoaming structure is made of sponge.

[0019] In some embodiments of this application, a grid structure is provided at the communication port.

[0020] Based on the above-mentioned anti-overflow foam device for a washing machine, this application also provides a washing machine with the above-mentioned anti-overflow foam device. By setting a float ball and an anti-overflow foam pipeline, foam overflow can be effectively prevented and the pressure inside the washing chamber can be kept stable.

[0021] A washing device includes the aforementioned anti-overflow foam device.

[0022] In some embodiments of this application, an outer tub and a top cover are provided to form a washing chamber, and the top cover is provided with the aforementioned anti-overflow foam device.

[0023] Compared with existing technologies, the advantages and positive effects of this invention are: by setting a float and an anti-overflow foam pipeline, foam overflow can be effectively prevented and the pressure inside the washing chamber can be kept stable. When the foam moves upward, the float in the vent pipe will close the second vent under the push of the foam, preventing the foam from overflowing from the vent pipe; the foam enters the anti-overflow foam pipeline from the vent pipe, and the defoaming structure can further eliminate any foam that may enter the anti-overflow foam pipeline, playing a double role in preventing foam overflow. Foam blocking the vent pipe will cause the pressure inside the drum to increase, but the new design, through the synergistic effect of the float and the anti-overflow foam pipeline, avoids the vent pipe being blocked by foam, thereby maintaining the pressure inside the washing chamber.

[0024] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of an anti-overflow foam device for a washing machine proposed in this utility model;

[0027] Figure 2 for Figure 1 Enlarged structural diagram of the anti-overflow foam device;

[0028] Figure 3 for Figure 2 A structural diagram illustrating the overflow of foam in the middle;

[0029] Figure 4 This is a schematic diagram of the anti-overflow foam device under water inlet conditions;

[0030] Figure 5 A schematic diagram of a structure that does not have a drain outlet to prevent overflow.

[0031] Among them, the anti-overflow foaming device is 100;

[0032] Ventilation pipe 10; Ventilation tube 11; First vent 12; Second vent 13; Float 14;

[0033] 20. Anti-overflow pipe; 21. Anti-overflow pipe; 22. Defoaming structure; 23. Connecting port; 24. Drain outlet;

[0034] 30 exhaust fan;

[0035] Washing chamber 200; outer tub 210; top cover 220. Detailed Implementation

[0036] 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.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the center of the washing chamber being "inner," and the opposite being "outer." These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application. Example

[0042] See Figures 1-5 This is an embodiment of an anti-overflow foam device for a washing machine proposed in this utility model. The anti-overflow foam device 100 includes: a vent pipe 10 and an anti-overflow foam pipe 20. The vent pipe 10 is used to connect the washing chamber 200 to the outside. The vent pipe 10 has a vent tube 11, a first vent 12 connected to the washing chamber 200 at one end of the vent pipe 11, and a second vent 13 connected to the outside at the other end of the vent pipe 11. The anti-overflow foam pipe 20 has an anti-overflow pipe 21 connected to the vent pipe 11, a defoaming structure 22 inside the anti-overflow pipe 21, and a connecting port 23 connected to one end of the anti-overflow pipe 21 and connected to the outside. A float 14 is provided inside the vent pipe 11, which can close the second vent 13 under the push of foam. By setting the float 14 and the anti-overflow foam pipe 20, foam overflow can be effectively prevented and the pressure inside the washing chamber can be kept stable. As the foam rises, the float in the vent pipe 11 closes the second vent 13 under the pressure of the foam, preventing foam from overflowing from the vent pipe 11. The foam then enters the anti-overflow foam pipe 22 from the vent pipe 11. The defoaming structure 22 further eliminates any foam that might enter the anti-overflow pipe 21, providing a double layer of protection against foam overflow. Foam blocking the vent pipe 11 would increase the pressure inside the drum, but the new design, through the synergistic effect of the float and the anti-overflow foam pipe 20, prevents the vent pipe 10 from being blocked by foam, thus maintaining stable pressure inside the washing chamber.

[0043] In some embodiments of this application, the vent pipe 11 is arranged vertically, and the float 14 can return to its original position after moving upwards under the action of gravity. When the vent pipe 11 is arranged vertically, the direction of gravity is consistent with the direction of the vent pipe 11, which ensures the smooth vertical movement of the float 14 and the sensitivity of the movement response when the air pressure difference between the upper and lower parts of the float 14 changes. When the float 14 is not pushed by foam, it can stably and quickly return to its initial position by its own weight, ensuring that the device can restore normal ventilation function in a timely manner after the foam dissipates, thereby improving the reliability and stability of the device.

[0044] In some embodiments of this application, an exhaust fan 30 is provided outside the second vent 13 to extract gas from the washing chamber 200. In ventilation mode, turning on the exhaust fan 30 continuously extracts humid air from the washing chamber 200, reducing humidity and the possibility of bacterial growth, thus providing a cleaner and more hygienic washing environment for clothes. The exhaust fan 30 actively extracts gas from the washing chamber 200, accelerating gas flow and making the exchange of air between the washing chamber and the outside more rapid and efficient, improving ventilation efficiency and effectiveness.

[0045] In some embodiments of this application, a drain outlet 24 communicating with the overflow pipe 21 is provided on the anti-overflow pipe 20. The cross-sectional area of ​​the drain outlet 24 is smaller than that of the first vent 12. The drain outlet 24 can be used to guide the liquid in the overflow pipe 21 into the washing chamber 200. When there is a large amount of foam in the washing chamber 200, the foam enters the vent pipe 11 and pushes the float 14 upward, closing the first vent 12; causing the foam to enter the overflow pipe 21, and when it passes through the defoaming structure 22, the foam breaks and becomes liquid; the liquid flows back into the washing chamber 200 from the drain outlet 24. This creates two pathways connecting the washing chamber 200 to the outside world. One is the main ventilation pipe, consisting of a first vent 12, a vent pipe 11, and a second vent 13. The other is the auxiliary ventilation pipe, consisting of a drain 24, an overflow prevention pipe 21, and a connecting port 23. The vent pipe 11 and the overflow prevention pipe 21 are connected so that foam entering the vent pipe 11 can flow into the overflow prevention pipe 21.

[0046] In some embodiments of this application, when the washing chamber 200 is under negative pressure, the float ball 14 can close the first vent 12 when draining. At this time, the vent pipe 10 is closed, and the path of the anti-overflow pipe 21 communicating with the washing chamber 200 through the first vent 12 is also closed. The drain outlet 24, the anti-overflow pipe 21, and the connecting port 23 form an auxiliary ventilation pipe that connects the washing chamber with the outside, so that the air pressure in the washing chamber 200 is kept in balance with the outside.

[0047] In some embodiments of this application, a support seat for supporting the float 14 is provided at the upper end of the first vent 12. The support seat has an arc-shaped surface that matches the float. Under the negative pressure in the washing chamber 200, the arc-shaped surface can seal with the float 14, thus sealing the first vent 12. During drainage, the washing chamber 200 is under negative pressure. At this time, the float 14 is subjected to downward pressure from atmospheric pressure, its own weight, and the upward support force provided by the support seat. The float 14 fits tightly against the arc-shaped surface of the support seat, achieving a seal. Under normal water intake conditions, the washing chamber 200 is under positive pressure, causing the gas in the washing chamber to exert an upward thrust on the float 14. The float 14 is also subjected to its own weight. At this time, the float 14 and the support seat are not tightly fitted, allowing gas to pass through the gap between the float 14 and the support seat.

[0048] In some embodiments of this application, the defoaming structure 22 has a defoaming body with multiple small holes on it to achieve foam rupture. In this embodiment, the defoaming structure 22 is made of sponge and has a grid structure at the connecting opening 23.

[0049] In other embodiments of this application, see Figure 5 As shown, the drain outlet 24 can be omitted, and the liquid after the foam bursts flows into the washing chamber 200 from the first vent 12. A non-sealed connection is provided between the float 14 and the first vent 12. Even when the float 14 closes the second vent 13, the washing chamber 200 can still communicate with the outside environment through the first vent 12, the vent pipe 11, the overflow prevention pipe 21, and the connecting port 23. A support base for supporting the float 14 is provided at the upper end of the first vent 12, and a through hole is provided on the support base to connect the vent pipe 11 and the washing chamber 200. Example

[0050] See Figures 1-4 This is one embodiment of a washing device proposed in this application. The washing device includes an outer tub 210 and an upper cover 220 surrounding a washing chamber 200. The upper cover 220 is provided with the aforementioned anti-overflow foam device 100. By setting the float ball 14 and the anti-overflow foam pipeline 20, foam overflow can be effectively prevented and the pressure inside the washing chamber can be kept stable.

[0051] In this embodiment, the anti-overflow foam device 100 includes: a vent pipe 10 and an anti-overflow foam device 20. The vent pipe 10 is used to connect the washing chamber 200 with the outside. The vent pipe 10 has a vent tube 11, a first vent 12 connected to the washing chamber 200 at one end of the vent tube 11, and a second vent 13 connected to the outside at the other end of the vent tube 11. The anti-overflow foam device 20 has an anti-overflow tube 21 connected to the vent tube 11, an anti-foaming structure 22 inside the anti-overflow tube 21, and a connecting port 23 connected to one end of the anti-overflow tube 21 and connected to the outside. A float 14 is provided inside the vent tube 11, which can close the second vent 13 under the push of foam. By setting the float 14 and the anti-overflow foam device 20, foam overflow can be effectively prevented and the pressure inside the washing chamber can be kept stable. As the foam rises, the float in the vent pipe 11 closes the second vent 13 under the pressure of the foam, preventing foam from overflowing from the vent pipe 11. The foam then enters the anti-overflow foam pipe 22 from the vent pipe 11. The defoaming structure 22 further eliminates any foam that might enter the anti-overflow pipe 21, providing a double layer of protection against foam overflow. Foam sealing the vent pipe 11 would increase the pressure inside the drum, but the new design, through the synergistic effect of the float and the anti-overflow foam pipe 20, prevents the vent pipe 10 from being sealed by foam, thus maintaining stable pressure inside the washing chamber.

[0052] In some embodiments of this application, the vent pipe 11 is arranged vertically, and the float 14 can return to its original position after moving upwards under the action of gravity. When the vent pipe 11 is arranged vertically, the direction of gravity is consistent with the direction of the vent pipe 11, which ensures the smooth vertical movement of the float 14 and the sensitivity of the movement response when the air pressure difference between the upper and lower parts of the float 14 changes. When the float 14 is not pushed by foam, it can stably and quickly return to its initial position by its own weight, ensuring that the device can restore normal ventilation function in a timely manner after the foam dissipates, thereby improving the reliability and stability of the device.

[0053] In some embodiments of this application, an exhaust fan 30 is provided outside the second vent 13 to extract gas from the washing chamber 200. In ventilation mode, turning on the exhaust fan 30 continuously extracts humid air from the washing chamber 200, reducing humidity and the possibility of bacterial growth, thus providing a cleaner and more hygienic washing environment for clothes. The exhaust fan 30 actively extracts gas from the washing chamber 200, accelerating gas flow and making the exchange of air between the washing chamber and the outside more rapid and efficient, improving ventilation efficiency and effectiveness.

[0054] In some embodiments of this application, a drain outlet 24 communicating with the overflow pipe 21 is provided on the anti-overflow pipe 20. The cross-sectional area of ​​the drain outlet 24 is smaller than that of the first vent 12. The drain outlet 24 can be used to guide the liquid in the overflow pipe 21 into the washing chamber 200. When there is a large amount of foam in the washing chamber 200, the foam enters the vent pipe 11 and pushes the float 14 upward, closing the first vent 12; causing the foam to enter the overflow pipe 21, and when it passes through the defoaming structure 22, the foam breaks and becomes liquid; the liquid flows back into the washing chamber 200 from the drain outlet 24. This creates two pathways connecting the washing chamber 200 to the outside world. One is the main ventilation pipe, consisting of a first vent 12, a vent pipe 11, and a second vent 13. The other is the auxiliary ventilation pipe, consisting of a drain 24, an overflow prevention pipe 21, and a connecting port 23. The vent pipe 11 and the overflow prevention pipe 21 are connected so that foam entering the vent pipe 11 can flow into the overflow prevention pipe 21.

[0055] In some embodiments of this application, when the washing chamber 200 is under negative pressure, the float ball 14 can close the first vent 12 when draining. At this time, the vent pipe 10 is closed, and the path of the anti-overflow pipe 21 communicating with the washing chamber 200 through the first vent 12 is also closed. The drain outlet 24, the anti-overflow pipe 21, and the connecting port 23 form an auxiliary ventilation pipe that connects the washing chamber with the outside, so that the air pressure in the washing chamber 200 is kept in balance with the outside.

[0056] In some embodiments of this application, a support seat for supporting the float 14 is provided at the upper end of the first vent 12. The support seat has an arc-shaped surface that matches the float. Under the negative pressure in the washing chamber 200, the arc-shaped surface can seal with the float 14, thus sealing the first vent 12. During drainage, the washing chamber 200 is under negative pressure. At this time, the float 14 is subjected to downward pressure from atmospheric pressure, its own weight, and the upward support force provided by the support seat. The float 14 fits tightly against the arc-shaped surface of the support seat, achieving a seal. Under normal water intake conditions, the washing chamber 200 is under positive pressure, causing the gas in the washing chamber to exert an upward thrust on the float 14. The float 14 is also subjected to its own weight. At this time, the float 14 and the support seat are not tightly fitted, allowing gas to pass through the gap between the float 14 and the support seat.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. An anti-overflow foam device for a washing machine, characterized in that, include: A ventilated duct has a ventilated pipe, a first vent at one end of the ventilated pipe that communicates with the washing chamber, and a second vent at the other end of the ventilated pipe that communicates with the outside. An anti-overflow pipe has an anti-overflow pipe connected to the vent pipe, an anti-foaming structure disposed inside the anti-overflow pipe, and a connecting port connected to one end of the anti-overflow pipe and communicating with the outside. A float ball is provided inside the vent tube, which can close the second vent when pushed by foam.

2. The anti-overflow foaming device according to claim 1, characterized in that, The vent pipe is arranged vertically, and the float can be reset after moving upward under the action of gravity.

3. The anti-overflow foaming device according to claim 1, characterized in that, An exhaust fan is provided on the outside of the second vent to extract the gas from the washing chamber.

4. The anti-overflow foaming device according to claim 1, characterized in that, The anti-overflow pipeline is provided with a drain outlet that is connected to the anti-overflow pipe and can be used to guide the liquid in the anti-overflow pipe into the washing chamber.

5. The anti-overflow foaming device according to claim 4, characterized in that, When the washing chamber is under negative pressure, the float ball can seal the first vent, and the drain, overflow prevention pipe and connecting port form an auxiliary ventilation pipeline connecting the washing chamber to the outside.

6. The anti-overflow foaming device according to any one of claims 1 to 5, characterized in that, A support seat for supporting the float is provided at the upper end of the first vent. The support seat has an arc-shaped surface that matches the float. Under the negative pressure in the washing chamber, the arc-shaped surface can seal with the float.

7. The anti-overflow foaming device according to any one of claims 1 to 5, characterized in that, A support base for supporting the float is provided at the upper end of the first vent, and a through hole is provided on the support base to enable communication between the vent pipe and the washing chamber.

8. The anti-overflow foaming device according to any one of claims 1 to 5, characterized in that, The defoaming structure has a defoaming body with multiple small holes on the defoaming body that can cause foam to break.

9. A washing device, characterized in that, Includes the anti-overflow foam device as described in any one of claims 1 to 8.

10. The washing equipment according to claim 9, characterized in that, It also includes an outer tub and a top cover that form a washing chamber, and the top cover is provided with the aforementioned anti-overflow foam device.

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