Overflow mechanism for washing machine
By setting up a connection between a connecting pipe and a water overflow pipe on the lower part of the washing machine's water bucket or the lower part of the side wall, the problem of water loss during high-speed rotation of the small washing machine is solved, and the effect of saving water resources and improving the cleaning ratio is achieved.
Patent Information
- Application Number
- CN202422384687.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In small models, traditional washing machines have shallow water buckets, and the water level can easily exceed the overflow port when rotating at high speed, resulting in water loss, affecting the washing effect and wasting water resources.
The water outlet is opened at the lower part of the water tank or the lower part of the side wall, and is connected to the upper part of the overflow pipe through the communication pipe. The water level is the same in normal state. When the water level is too high, water overflows into the overflow pipe and discharges. The water in the communication pipe is not in the same cavity as the water tank, to avoid water loss caused by centrifugal force.
It achieves no loss of water resources during high-speed rotation, improves the cleaning ratio, saves water resources and maintains the cleanliness of laundry.
Smart Images

Figure CN223163643U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of washing machines, and particularly relates to an overflow mechanism for a washing machine. Background Art
[0002] In order to prevent the water level from being too high, a traditional fully automatic washing machine sets a maximum water level line above the water storage bucket and opens a notch on the bucket wall. When the water level exceeds this notch, the water level passes through this notch and is directly discharged outside the machine through the drain port of the overflow pipe. For this type of overflow method, on larger washing machines, due to the relatively deep water storage bucket, the overflow water level is relatively high, and the water flow during normal washing will not exceed the overflow port. However, for small washing machines, their water storage buckets are relatively shallow. If the set rotation speed is too fast and the washing bucket rotates at a high speed, due to centrifugal force, the water will climb along the wall around the water storage bucket. Once it exceeds the overflow port, a large amount of water will be lost from the overflow port. After multiple washes, it will be found that the water level drops significantly. To solve this kind of phenomenon, usually, water is replenished in time to make up for the too low water level, or the washing rotation speed is slowed down to make the water flow slower. The former causes a large amount of water waste, while the latter affects the washing effect and the clothes cannot be washed clean. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide an overflow mechanism for a washing machine that can improve the washing cleanliness and save water resources.
[0004] The technical solution adopted by the utility model to solve the above problems is: an overflow mechanism for a washing machine, the washing machine includes a water storage bucket, the overflow mechanism includes a connecting pipe arranged on one side of the water storage bucket and an overflow pipe arranged on one side of the connecting pipe. The lower part of the connecting pipe is communicated with the lower part or the lower side part of the water storage bucket, the upper part of the connecting pipe is communicated with the upper part of the overflow pipe, and the height of the communicating part is the height of the highest water level line for overflow. A drain port is arranged at the lower part of the overflow pipe.
[0005] Compared with the prior art, the advantages of the utility model are as follows: no overflow port is arranged in the water storage bucket, and the overflow port of the water storage bucket is completely blocked. After blocking, the water storage bucket is quite a complete cavity. The water flow generated by high-speed rotation not only improves the washing ratio but also does not cause water loss, that is, it can achieve the purpose of washing clothes cleanly and save water resources.
[0006] An outlet is opened at the lower part or the lower side wall of the water storage bucket and is communicated with the upper part of the overflow pipe through a connecting pipe. Under normal conditions, when water is inlet, under the action of atmospheric pressure, the water levels in the water storage bucket and the connecting pipe are at the same height; when the water level is too high, the water will overflow from the upper opening of the connecting pipe into the overflow pipe and be discharged through the drain port of the overflow pipe.
[0007] When the washing tub rotates at high speed, since there is no overflow outlet in the water storage tub, a super-strong rotational flow rate can be generated inside the entire water storage tub. The centrifugal water flow generated can effectively drive the clothes for washing. At this time, since the water in the connecting pipe and the water in the water storage tub are not in the same cavity, the water in the connecting pipe will not have large fluctuations and will not exceed the upper part of the overflow pipe, so there will be no water loss phenomenon.
[0008] Further, the overflow mechanism further includes an overflow box fixed to the upper part of one side of the water storage tub. The overflow box is provided with a connection interface and an overflow interface. The upper part of the connecting pipe is inserted into the connection interface, and the upper part of the overflow pipe is inserted into the overflow interface.
[0009] Further, the connection interface is arranged at the lower part of one side of the overflow box, the overflow interface is arranged at the lower part of the other side of the overflow box, the middle part of the overflow box is a connection cavity, and the bottom surface of the connection cavity is the highest water level line for overflow.
[0010] Further, a buffer cavity is further arranged on the other side of the overflow box. The buffer cavity is communicated with the connection cavity, and the overflow interface is arranged at the lower part of the buffer cavity so that the height of the overflow interface is lower than the height of the connection interface.
[0011] Further, a washing tub is arranged inside the water storage tub, a driving motor is arranged at the bottom of the water storage tub, and the washing tub is connected to the output shaft of the driving motor.
[0012] Further, a drain pipe is further arranged at the bottom of the water storage tub, and a switch solenoid valve is arranged at the drain pipe. Description of the Drawings
[0013] Figure 1 is a schematic cross-sectional view of the washing machine structure in the prior art;
[0014] 01, water storage tub; 02, overflow outlet, 03, overflow pipe; 04, washing tub;
[0015] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;
[0016] Figure 3 is a schematic cross-sectional view of the overall structure of the present invention during washing;
[0017] Figure 4 is a schematic side view of the overall structure of the present invention.
[0018] 1, water storage tub; 2, connecting pipe; 3, overflow pipe; 3.1, drain port; 4, overflow box; 4.1, connection interface; 4.2, overflow interface; 4.3, connection cavity; 4.4, buffer cavity; 5, washing tub; 6, driving motor; 7, drain pipe; 8, switch solenoid valve. Detailed Embodiment
[0019] As Figure 1 shown, it is the prior art,
[0020] At the highest water level line on one side of the water storage bucket 01, there is an overflow port 02, and the overflow port 02 is discharged through an overflow pipe 03. When the water level in the water storage bucket 01 is too high, as shown by the arrow, the excess water is discharged through the overflow port 02. However, when the washing tub 04 rotates at a high speed, the water in the water storage bucket 01 will flow out through the overflow port 02 as it rotates, resulting in the loss of washing water in the water storage bucket 01 and affecting the washing effect of the clothes.
[0021] As Figures 2 - 4 shown, the specific structure of the present application includes:
[0022] A washing tub 5 is provided inside the water storage bucket 1. A driving motor 6 is provided at the bottom of the water storage bucket 1. The washing tub 5 is connected to the output shaft of the driving motor 6. The water storage bucket 1 contains washing water, and the clothes are placed in the washing tub 5. The driving motor 6 drives the washing tub 5 to rotate at a high speed to clean the clothes. A drain pipe 7 is also provided at the bottom of the water storage bucket 1, and a switch solenoid valve 8 is provided at the drain pipe 7. When the clothes are washed, the switch solenoid valve 8 is opened to drain all the water in the water storage bucket 1. These structures are the prior art and will not be described in detail here.
[0023] The overflow mechanism includes a communication pipe 2 provided on one side of the water storage bucket 1 and an overflow pipe 3 provided on one side of the communication pipe 2. The lower part of the communication pipe 2 is communicated with the lower part or the lower side part of the water storage bucket 1, and the upper part of the communication pipe 2 is communicated with the upper part of the overflow pipe 3, and the height of the communication part is the highest water level line for overflow. A drain port 3.1 is provided at the lower part of the overflow pipe 3. As Figure 2 shown, under the action of atmospheric pressure, the water level in the communication pipe 2 is the same as the water level in the water storage bucket 1, and the highest water level line is generally set slightly higher than the height of the washing water in the water storage bucket 1. When the water level of the washing water in the water storage bucket 1 is too high, the water will overflow in the direction of the arrow in Figure 4 .
[0024] When the washing machine is washing, the water level in the water storage bucket 1 will be as Figure 3 shown. The water level in the water storage bucket 1 will be higher than the highest water level line. At this time, since the water in the communication pipe 2 and the water in the water storage bucket 1 are not in the same cavity, the water in the communication pipe 2 will not have large fluctuations and will not exceed the highest water level line, and there will be no water loss phenomenon for the water flow.
[0025] The overflow mechanism further includes an overflow box 4 fixed to the upper part of one side of the water storage bucket 1. The overflow box 4 is provided with a communication interface 4.1 and an overflow interface 4.2. The upper part of the communication pipe 2 is inserted into the communication interface 4.1, and the upper part of the overflow pipe 3 is inserted into the overflow interface 4.2. The upper part of the overflow box 4 is provided with an opening; the opening is to make the inside of the overflow box 4 communicate with the atmosphere, ensuring that the water level in the communication pipe 2 is the same as the water level in the water storage bucket 1. By providing the overflow box 4, it is more convenient to connect the overflow pipe 3 and the communication pipe 2. The overflow box 4 can be integrally formed with the washing bucket 5, which is more convenient for production.
[0026] The communication interface 4.1 is arranged at the lower part of one side of the overflow box 4, and the overflow interface 4.2 is arranged at the lower part of the other side of the overflow box 4. The middle part of the overflow box 4 is a communication cavity 4.3, and the bottom surface of the communication cavity 4.3 is the highest water level line for overflow.
[0027] The other side of the overflow box 4 is further provided with a buffer cavity 4.4. The buffer cavity 4.4 communicates with the communication cavity 4.3. The overflow interface 4.2 is arranged at the lower part of the buffer cavity 4.4 so that the height of the overflow interface 4.2 is lower than the height of the communication interface 4.1. When the water level in the water storage bucket 1 is too high, the water will flow from the communication cavity 4.3 into the buffer cavity 4.4. The buffer cavity 4.4 can be used to collect the overflowed water and then discharge it through the overflow pipe 3.
[0028] The above is only an illustration of the best embodiment of the present invention, but it should not be construed as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure allows for changes. Any changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.
Claims
1. An overflow mechanism for a washing machine, the washing machine including a water tub (1), characterized in that: The overflow mechanism includes a connecting pipe (2) provided on one side of the water storage bucket (1), and an overflow pipe (3) provided on one side of the connecting pipe (2). The lower part of the connecting pipe (2) is communicated with the lower part or the lower side part of the water storage bucket (1), and the upper part of the connecting pipe (2) is communicated with the upper part of the overflow pipe (3), and the height of the communicating part is the height of the highest water level line for overflow. A drain port (3.1) is provided at the lower part of the overflow pipe (3).
2. The overflow mechanism for a washing machine according to claim 1, characterized in that: The overflow mechanism further includes an overflow box (4) fixed to the upper part of one side of the water storage bucket (1). The overflow box (4) is provided with a connecting interface (4.1) and an overflow interface (4.2). The upper part of the connecting pipe (2) is inserted into the connecting interface (4.1), and the upper part of the overflow pipe (3) is inserted into the overflow interface (4.2). An opening is provided at the upper part of the overflow box (4).
3. The overflow mechanism for a washing machine according to claim 2, characterized in that: The connecting interface (4.1) is provided at the lower part of one side of the overflow box (4), and the overflow interface (4.2) is provided at the lower part of the other side of the overflow box (4). The middle part of the overflow box (4) is a communicating cavity (4.3), and the bottom surface of the communicating cavity (4.3) is the highest water level line for overflow.
4. The overflow mechanism for a washing machine according to claim 2, characterized in that: A buffer cavity (4.4) is further provided on the other side of the overflow box (4). The buffer cavity (4.4) is communicated with the communicating cavity (4.3). The overflow interface (4.2) is provided at the lower part of the buffer cavity (4.4) so that the height of the overflow interface (4.2) is lower than the height of the connecting interface (4.1).
5. The overflow mechanism for a washing machine according to claim 1, characterized in that: A washing bucket (5) is provided in the water storage bucket (1), and a driving motor (6) is provided at the bottom of the water storage bucket (1). The washing bucket (5) is connected to the output shaft of the driving motor (6).
6. The overflow mechanism for a washing machine according to claim 1, characterized in that: A drain pipe (7) is further provided at the bottom of the water storage bucket (1), and a switch solenoid valve (8) is provided at the drain pipe (7).