Drain line system and washing machine comprising the same

Abstract

The utility model provides a kind of drain pipeline system and washing machine comprising it.The drain pipeline system includes: main drainage device, including drain pipe and drain pump, drain pump separates drain pipe into first main drain pipe and second main drain pipe;And circulation loop, including circulation pipe, with first end and second end.Circulation pipe's first end is connected to the upstream of drain pump, and the second end of circulation pipe is connected to second main drain pipe.Circulation loop is in closed state when the water amount in cylinder is not less than preset value, and in open state when the water amount in cylinder is less than preset value, to make the water flow from second main drain pipe reflux can from the second end of circulation pipe to circulation pipe.When the water amount in cylinder is less than preset value, circulation loop works, and the water flow of the bending section of second main drain pipe reflux flows into circulation loop through the second end of circulation pipe, instead of flowing into the cavity of drain pump, to protect drain pump, and half water air drainage noise is not easy to produce.

Description

Technical Field

[0001] This utility model relates to the field of washing machines, and in particular to a drainage pipe system and a washing machine including the same. Background Technology

[0002] Existing drum washing machines primarily use a top-drainage system powered by a drain pump. In this system, the drain pipe bends upwards and then downwards at the rear panel to prevent water from overflowing during the washing process. The drain pipe houses the drain pump, and together they form the main drainage system. For ease of description, the section of the drain pipe connecting the drum and the drain pump is called the first main drain pipe, and the section downstream of the drain pump is called the second main drain pipe. The bend is located on the second main drain pipe.

[0003] When the water volume inside the washing machine drum is insufficient, the above drainage method will cause backflow of water in the bent section of the drain pipe due to insufficient water pressure. The backflowing water will enter the drain pump chamber, and the air mixed in will cause a large semi-water vapor drainage noise. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing washing machine drainage system, which has the problem that water flow can easily flow back into the cavity of the drain pump and easily generate noise, and to provide a drainage pipeline system and a washing machine containing the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A drainage piping system is provided for connection to the drum of a washing machine to discharge water inside the drum to the outside. The drainage piping system includes a main drainage device, which includes a drain pipe and a drain pump. The drain pump divides the drain pipe into a first main drain pipe and a second main drain pipe. The drainage piping system also includes a circulation loop, which includes a circulation pipe having a first end and a second end along its extension direction.

[0007] Wherein, along the water flow direction in the drain pipe, the first end of the circulation pipe is connected to the upstream of the drain pump, and the second end of the circulation pipe is connected to the second main drain pipe;

[0008] The circulation loop is configured to be closed when the water volume in the cylinder is not less than a preset value.

[0009] The circulation loop is also configured to be open when the water volume in the cylinder is less than a preset value, so that the water flowing back from the second main drain pipe can flow from the second end of the circulation pipe to the circulation pipe.

[0010] In this design, when the water volume inside the cylinder is not less than the preset value, indicating sufficient water or a high water level, and drainage is required, the circulation loop is closed, and drainage proceeds normally through the main drainage device. Backflow issues do not occur at the bend of the second main drainage pipe, preventing the generation of semi-water vapor noise. When the water volume inside the cylinder is less than the preset value, indicating insufficient water or a low water level, the circulation loop switches to the open state. The circulation loop operates, and the backflowing water from the bend of the second main drainage pipe flows back into the circulation loop through the second end of the circulation pipe, instead of flowing into the drainage pump's chamber. This protects the drainage pump and minimizes the generation of semi-water vapor drainage noise.

[0011] Preferably, the first end of the circulation pipe is connected to the first main drain pipe or is used to connect to the cylinder.

[0012] Preferably, the circulation loop further includes a valve, which is disposed at the first end of the circulation pipe;

[0013] When the valve is in the closed state, the circulation loop is in the closed state;

[0014] When the valve is in the open state, the circulation loop is in the open state.

[0015] In this solution, the above settings allow the valve to switch the circulation loop between the open and closed states in a convenient and reliable manner.

[0016] Preferably, the connection position between the first end of the circulation pipe and the upstream of the drainage pump is the first connection position, and the connection position between the second end of the circulation pipe and the second main drainage pipe is the second connection position.

[0017] In the vertical direction, the second connection position is located above the first connection position, so that the valve can switch to the open state to the left or right of the water flow flowing into the circulation pipe from the second end of the circulation pipe.

[0018] In this solution, the above-mentioned structural configuration is adopted, and the second connection position corresponding to the second end of the circulation pipe is located higher than the first connection position corresponding to the first end of the circulation pipe. This allows the valve to open automatically under the water pressure of the water flow, making the valve operation more convenient. This is conducive to realizing the intelligence of the drainage pipeline system and also helps to simplify the structure of the drainage pipeline system.

[0019] Preferably, the height difference between the second connection position and the first connection position is in the range of 5-10cm.

[0020] Preferably, the first end of the circulation pipe is connected to the first main drain pipe or is used to connect to the cylinder.

[0021] In this solution, the above-mentioned structural configuration allows for flexible configuration of the connection position of the first end of the circulation pipe according to actual needs.

[0022] Preferably, the first end of the circulation pipe is used to connect to the cylinder;

[0023] A connection hole is provided on the outer wall surface of the cylinder, the first end of the circulation pipe is embedded in the connection hole, and the valve is adapted to the connection hole to open or close the connection hole;

[0024] When the valve is in the closed state, the valve is used to close the connection hole;

[0025] When the valve is in the open state, the valve is used to open the connection hole.

[0026] In this scheme, the above-mentioned structure is adopted. The first end of the circulation pipe is connected to the cylinder. The first end of the circulation pipe is located relatively high upstream of the drainage pump, which is conducive to setting the preset value more reasonably, so that the backflow water can be transferred to the circulation pipe in a timely manner.

[0027] Preferably, along the water flow direction, the second main drain pipe has a straight section, an upward bend section, and a downward bend section connected in sequence;

[0028] The second end of the circulation pipe is connected to the upward bend section.

[0029] In this design, the structure described above places the second end of the circulation pipe relatively far from the drain pump, thus further protecting the drain pump. Furthermore, the second end of the circulation pipe is connected to the upward bend, which facilitates the return water flow into the circulation pipe, ensuring the circulation loop can function reliably when needed.

[0030] Preferably, the circulation pipe is a single integral structure;

[0031] And / or, the circulation tube has at least one bend along its extension direction.

[0032] In this design, the circulation pipe is a single, simple structure that is less prone to leakage. By incorporating at least one bend, the flow path within the circulation loop is increased, allowing for the containment of more backflowing water within a limited space.

[0033] This utility model also provides a washing machine, which includes a drum and the aforementioned drainage pipe system.

[0034] The positive and progressive effects of this utility model are as follows:

[0035] In this application, when the water volume inside the cylinder is not less than the preset value, the water volume inside the cylinder is sufficient or the water level is high, and drainage is required, the circulation loop is in a closed state, and drainage is carried out normally through the main drainage device. The bend section of the second main drainage pipe will not experience backflow problems, and there will be no noise problem caused by semi-water vapor. When the water volume inside the cylinder is less than the preset value, the water volume inside the cylinder is insufficient or the water level is low, the circulation loop switches to an open state, and the circulation loop operates. The backflowing water from the bend section of the second main drainage pipe flows into the circulation loop through the second end of the circulation pipe, instead of flowing into the drainage pump cavity, thus protecting the drainage pump and reducing the likelihood of semi-water vapor drainage noise. Attached Figure Description

[0036] Figure 1 This is a partial structural schematic diagram of a washing machine according to a preferred embodiment of the present invention.

[0037] Figure 2 This is a schematic diagram of another part of the structure of a washing machine according to a preferred embodiment of the present invention.

[0038] Figure 3 This is a schematic diagram of another part of the structure of a washing machine according to a preferred embodiment of the present invention, wherein the valve is in the closed state.

[0039] Figure 4 This is a schematic diagram of another part of the structure of a washing machine according to a preferred embodiment of the present invention, wherein the valve is in the open state.

[0040] Explanation of reference numerals in the attached figures:

[0041] Cylinder 10

[0042] Connection hole 101

[0043] Drainage piping system 20

[0044] Main drainage device 30

[0045] First main drainage pipe 301

[0046] Drainage pump 302

[0047] Second main drainage pipe 303

[0048] Straight section 304

[0049] Upward bending section 305

[0050] Downward bending section 306

[0051] Loop 40

[0052] Circulation pipe 401

[0053] Valve 402

[0054] Bending part 403 Detailed Implementation

[0055] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0056] like Figures 1 to 4 As shown, this embodiment provides a drainage pipe system 20 and a washing machine including the same. The drainage pipe system 20 is connected to the drum 10 of the washing machine to drain water from the drum 10 to the outside. The drainage pipe system 20 includes a main drainage device 30, which includes a drain pipe and a drain pump 302. The drain pump 302 divides the drain pipe into a first main drain pipe 301 and a second main drain pipe 303. The drainage pipe system 20 also includes a circulation loop 40, which includes a circulation pipe 401. The circulation pipe 401 has a first end and a second end along its extension direction. Along the water flow direction in the drain pipe, the first end of the circulation pipe 401 is connected upstream of the drain pump 302, and the second end of the circulation pipe 401 is connected to the second main drain pipe 303. The circulation loop 40 is configured to be in a closed state when the water volume in the drum 10 is not less than a preset value. The circulation loop 40 is also configured to be open when the water volume in the cylinder 10 is less than a preset value, so that the water flowing back from the second main drain pipe 303 can flow from the second end of the circulation pipe 401 to the circulation pipe 401.

[0057] In this embodiment, when the water volume in the cylinder 10 is not less than a preset value, the water volume in the cylinder 10 is sufficient or the water level is high, and drainage is required, the circulation loop 40 is in a closed state, and drainage is carried out normally through the main drainage device 30. The bend section of the second main drainage pipe 303 will not experience backflow problems, and there will be no semi-water vapor noise problem. When the water volume in the cylinder 10 is less than the preset value, the water volume in the cylinder 10 is insufficient or the water level is low, the circulation loop 40 switches to an open state, the circulation loop 40 works, and the backflow of water from the bend section of the second main drainage pipe 303 flows into the circulation loop 40 through the second end of the circulation pipe 401, instead of flowing into the cavity of the drainage pump 302, thereby protecting the drainage pump 302 and reducing the likelihood of semi-water vapor drainage noise.

[0058] It should be noted that the above preset values ​​can be set according to actual needs, and no specific restrictions are imposed here.

[0059] In theory, the first end of the circulation pipe 401 can be connected to the first main drain pipe 301, or it can be connected to the cylinder 10. Specifically, the connection position of the first end of the circulation pipe 401 can be flexibly set according to actual needs.

[0060] Specifically, in this embodiment, such as Figures 1 to 4 As shown, the first end of the circulation pipe 401 is connected to the cylinder 10. For the specific connection method, please refer to the detailed setting method later.

[0061] like Figure 3 and Figure 4 As shown, the circulation loop 40 also includes a valve 402, which is disposed at the first end of the circulation pipe 401. When the valve 402 is in the closed state, the circulation loop 40 is in the closed state. When the valve 402 is in the open state, the circulation loop 40 is in the open state. This configuration allows the valve 402 to conveniently and reliably switch the circulation loop 40 between the open and closed states.

[0062] It should be noted that valve 402 is preferably configured as a one-way valve. In fact, the valve can be a traditional valve or a plate-like structure. The material should not be too soft, as long as it can switch between opening and closing the circulation loop 40.

[0063] Combination Figure 1 and Figure 2 It is understood that the connection position between the first end of the circulation pipe 401 and the upstream of the drain pump 302 is the first connection position, and the connection position between the second end of the circulation pipe 401 and the second main drain pipe 303 is the second connection position. In the vertical direction, the second connection position is located above the first connection position, so that the valve 402 can switch to the open state according to the left and right sides of the water flow flowing into the circulation pipe 401 from the second end of the circulation pipe 401.

[0064] Here, with the above configuration, the second connection position corresponding to the second end of the circulation pipe 401 is located higher than the first connection position corresponding to the first end of the circulation pipe 401, so that the valve 402 can be automatically opened under the action of water pressure, making the operation of the valve 402 more convenient, which is conducive to realizing the intelligence of the drainage pipeline system 20 and also helps to simplify the structure of the drainage pipeline system 20.

[0065] Furthermore, the height difference between the second connection position and the first connection position ranges from 5 to 10 cm. As a preferred embodiment, in this embodiment, the height difference between the second connection position and the first connection position is 7 cm. In other alternative embodiments, the height difference can also be set to other values ​​within the aforementioned range.

[0066] As previously stated, in this embodiment, the first end of the circulation pipe 401 is connected to the cylinder 10. A connection hole 101 is provided on the outer wall surface of the cylinder 10. The first end of the circulation pipe 401 is embedded in the connection hole 101. The valve 402 is adapted to the connection hole 101 to open or close the connection hole 101. When the valve 402 is in the closed state, the valve 402 is used to close the connection hole 101; when the valve 402 is in the open state, the valve 402 is used to open the connection hole 101.

[0067] In this embodiment, the first end of the circulation pipe 401 is connected to the cylinder 10. The first end of the circulation pipe 401 is located relatively high upstream of the drain pump 302, which is conducive to setting the preset value more reasonably, so that the backflow water can be transferred to the circulation pipe 401 in a timely manner.

[0068] Reference Figure 1 and Figure 2 It is understood that, along the water flow direction, the second main drain pipe 303 has a straight section 304, an upward bend section 305, and a downward bend section 306 connected in sequence. The second end of the circulation pipe 401 is connected to the upward bend section 305.

[0069] With the above configuration, the second end of the circulation pipe 401 is relatively far from the drain pump 302, which further protects the drain pump 302. In addition, the second end of the circulation pipe 401 is connected to the upward bend section 305, which facilitates the flow of backflowing water into the circulation pipe 401, thereby ensuring that the circulation loop 40 can function reliably when needed.

[0070] Reference Figures 1 to 4 It is understood that, as a preferred configuration, the circulation pipe 401 is a single, integral structure. This design, with the circulation pipe 401 being a single, integral structure, results in a simple design and reduces the risk of leakage.

[0071] Further or alternatively, the circulation pipe 401 has at least one bend 403 along its extension direction. By providing at least one bend 403, the flow path within the circulation loop 40 is increased, allowing more return water to be accommodated within the effective space.

[0072] In this embodiment, as a preferred configuration, the number of bending portions 403 is two.

[0073] In summary, in this embodiment, a circulation loop 40 is added to the drainage pipeline system 20. When the water volume in the cylinder 10 is not less than a preset value, the water volume in the cylinder 10 is sufficient or the water level is high, and drainage is required, the circulation loop 40 is in a closed state, and drainage is carried out normally through the main drainage device 30. The bend section of the second main drainage pipe 303 will not experience backflow problems, and there will be no semi-water vapor noise problem. When the water volume in the cylinder 10 is less than the preset value, the water volume in the cylinder 10 is insufficient or the water level is low, the circulation loop 40 switches to an open state, and the circulation loop 40 operates. The backflow of water from the bend section of the second main drainage pipe 303 flows into the circulation loop 40 through the second end of the circulation pipe 401, instead of flowing into the cavity of the drainage pump 302, thereby protecting the drainage pump 302 and reducing the likelihood of semi-water vapor drainage noise. When the valve 402 is in an open state, a portion of the water inside the cylinder 10 can also be discharged through the circulation pipe 401 to the second main drainage pipe 303.

[0074] It should be noted that the washing machine can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the washing machine to perform corresponding operations, thereby realizing intelligent control of the washing machine and improving the user experience.

[0075] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0076] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A drainage piping system for connecting to the drum of a washing machine to discharge water from the drum to the outside, the drainage piping system comprising a main drainage device, the main drainage device comprising a drain pipe and a drain pump, the drain pump dividing the drain pipe into a first main drain pipe and a second main drain pipe, characterized in that, The drainage pipeline system also includes a circulation loop, which includes a circulation pipe having a first end and a second end along its extension direction. Wherein, along the water flow direction in the drain pipe, the first end of the circulation pipe is connected to the upstream of the drain pump, and the second end of the circulation pipe is connected to the second main drain pipe; The circulation loop is configured to be closed when the water volume in the cylinder is not less than a preset value. The circulation loop is also configured to be open when the water volume in the cylinder is less than a preset value, so that the water flowing back from the second main drain pipe can flow from the second end of the circulation pipe to the circulation pipe.

2. The drain line system of claim 1, wherein, The first end of the circulation pipe is connected to the first main drain pipe or is used to connect to the cylinder.

3. The drainage pipeline system as described in claim 1, characterized in that, The circulation loop also includes a valve, which is disposed at the first end of the circulation pipe; When the valve is in the closed state, the circulation loop is in the closed state; When the valve is in the open state, the circulation loop is in the open state.

4. The drain line system of claim 3, wherein, The connection position between the first end of the circulation pipe and the upstream of the drainage pump is the first connection position, and the connection position between the second end of the circulation pipe and the second main drainage pipe is the second connection position. In the vertical direction, the second connection position is located above the first connection position, so that the valve can switch to the open state to the left or right of the water flow flowing into the circulation pipe from the second end of the circulation pipe.

5. The drain line system of claim 4, wherein, The height difference between the second connection position and the first connection position is 5-10cm.

6. The drainage pipeline system as described in claim 3, characterized in that, The first end of the circulation pipe is connected to the first main drain pipe or is used to connect to the cylinder.

7. The drain line system of claim 6, wherein, The first end of the circulation pipe is used to connect to the cylinder; A connection hole is provided on the outer wall surface of the cylinder, the first end of the circulation pipe is embedded in the connection hole, and the valve is adapted to the connection hole to open or close the connection hole; When the valve is in the closed state, the valve is used to close the connection hole; When the valve is in the open state, the valve is used to open the connection hole.

8. The drain line system of claim 1, wherein, Along the direction of water flow, the second main drain pipe has a straight section, an upward bend section, and a downward bend section connected in sequence; The second end of the circulation pipe is connected to the upward bend section.

9. The drainage piping system as described in any one of claims 1-8, characterized in that, The circulation pipe is a single, integral structure. And / or, the circulation tube has at least one bend along its extension direction.

10. A washing machine, comprising a drum, characterized in that, The washing machine also includes a drainage piping system as described in any one of claims 1-9.

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