A washing machine drain trap and drain structure

Abstract

The utility model relates to the field of bathroom equipment discloses a washing machine drainage floor drain core and contain floor drain structure of this washing machine drainage floor drain core, wherein floor drain core includes core body and flap, is provided with water inlet and second drain on the core body, the flap covers and shields second drain, and the water inlet and second drain form second drainage channel in the core body inside communication, still be provided with flow guide pipe, baffle and first drain on the core body, baffle sets up between flow guide pipe and core body inner wall, and flow guide pipe is fixed in the core body through baffle, and the bottom of flow guide pipe forms first drainage channel with first drain communication, and first drainage channel and second drainage channel are independent drainage respectively. The utility model discloses through optimizing the structure of floor drain core, makes floor drain core to have washing machine drainage and ground drainage two independent drainage channel simultaneously, and two drainage channels all have normal insect prevention and peculiar smell prevention function, has simple structure durable, low failure rate and the advantages such as strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of bathroom equipment, and in particular to a washing machine drain core and a drain structure including the washing machine drain core. Background Technology

[0002] Floor drains are crucial interfaces connecting the drainage pipe system to the indoor floor, and the drain core is installed inside the drain. As an important component of the residential drainage system, the drain core not only drains water normally but also prevents odors or insects from the drainage pipes from entering the bathroom through the drain. Because washing machines drain large volumes of wastewater in a short period, ordinary floor drains cannot effectively remove such large amounts of wastewater quickly. Especially when there is wastewater on the floor that has not yet been drained, the wastewater discharged from the washing machine can easily accumulate and spread on the floor, significantly impacting the user experience. Utility Model Content

[0003] To address the problems existing in the prior art, where ordinary floor drains are unable to drain large amounts of sewage in a short time when the washing machine is draining, leading to sewage accumulation and spread on the ground, the purpose of this utility model is to provide a washing machine drain core. By optimizing the structure of the drain core, it can simultaneously provide two independent drainage channels for washing machine drainage and ground drainage. Both drainage channels have normal insect and odor prevention functions. It has the advantages of simple and durable structure, low failure rate and strong applicability, making it convenient for large-scale promotion and application.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A washing machine drain core includes a core body and a flap. The core body has a water inlet and a second drain outlet. The flap is hinged to the core body and covers and blocks the second drain outlet. Inside the core body, the water inlet and the second drain outlet communicate to form a second drainage channel. The core body also has a guide pipe, an isolation plate, and a first drain outlet. The isolation plate is disposed between the guide pipe and the inner wall of the core body. The guide pipe is fixed inside the core body by the isolation plate, and the outer wall of the guide pipe does not contact the inner wall of the core body. The bottom of the guide pipe communicates with the first drain outlet to form a first drainage channel. The first drainage channel and the second drainage channel drain water independently.

[0006] The present invention is further configured such that the isolation plate is arranged around the connection between the guide pipe and the first drain outlet.

[0007] The present invention is further configured such that: both the core and the guide pipe are vertically arranged and the axis of the guide pipe coincides with the axis of the core; and the water inlet is an annular gap between the outer wall of the guide pipe and the inner wall of the core.

[0008] The present invention is further configured such that the first drain outlet is located above the second drain outlet on the core.

[0009] The present invention is further configured such that the first drain outlet and the second drain outlet are located on the same side of the core.

[0010] The present invention is further configured to include a sealing element, which is used to enhance the sealing performance of the flap to the second drain outlet. The sealing element includes a movable magnetic block and a fixed magnetic block that correspond to each other. The movable magnetic block is fixed to the bottom of the flap and located on the side of the flap away from the second drain outlet. The fixed magnetic block is disposed at the bottom of the core near the second drain outlet. Furthermore, the fixed magnetic block and the movable magnetic block are arranged facing each other and have opposite magnetic properties.

[0011] This utility model also provides a floor drain structure, including a floor drain body, a mounting base, and a floor drain cover. The mounting base is located inside the floor drain body, and the floor drain cover is placed on the floor drain body. It also includes the aforementioned washing machine drain core. The core is installed in the floor drain body through the mounting base, and the drain pipe is connected to the drain pipe of the washing machine.

[0012] The present invention is further configured such that: an installation block is provided on the outer wall of the core, and an installation groove is provided on the inner wall of the mounting base, and the core and the mounting base are connected and installed by the installation block and the installation groove.

[0013] The present invention is further configured to include a connecting pipe, wherein the drain cover is provided with a through hole, one end of the connecting pipe passes through the through hole and is connected to a guide pipe, and the other end of the connecting pipe is connected to the drain pipe of the washing machine.

[0014] The present invention is further configured such that: the adapter tube includes a connector, a retaining ring, and a retaining ring; the connector is located at the end of the adapter tube that connects to the guide tube; the retaining ring is located above the connector; the diameter of the connector is smaller than the diameter of the through hole and the diameter of the retaining ring is larger than the diameter of the through hole; the retaining ring is located below the funnel cover and is threadedly engaged with the connector.

[0015] In summary, the beneficial effects achieved by this utility model are as follows:

[0016] (1) The annular inlet between the outer wall of the guide pipe and the inner wall of the core is connected to the second drain outlet of the core, forming a second drainage channel; the guide pipe located inside the core is connected to the first drain outlet of the core, forming a first drainage channel; due to the presence of the isolation plate, the first drainage channel and the second drainage channel are not connected to each other and are independent of each other. After the ground drainage enters the inlet, it is discharged from the second drain outlet, while the washing machine drainage enters the guide pipe and is discharged directly from the first drain outlet. On the one hand, the washing machine drains directly through the pipe, which greatly increases the flow rate and velocity compared to the conventional ground drainage method of natural flow through the floor drain; on the other hand, it allows the ground drainage and washing machine drainage to occur simultaneously, thus completely solving the problem of water accumulation on the ground caused by a large amount of short-term drainage from the washing machine.

[0017] (2) Due to the presence of hair and other dirt on the ground, the dirt carried in the sewage discharged from the second drain outlet is easily attached to the second drain outlet, which reduces the sealing performance of the flap to the second drain outlet. However, the washing machine sewage discharged from the first drain outlet contains less solid dirt and flows faster. Therefore, the first drain outlet, which is located on the same side of the core and higher than the second drain outlet, can use the washing machine sewage to impact and wash the area around the second drain outlet, which has the function of removing solid dirt and strengthening the sealing performance.

[0018] (3) The connecting pipe of the washing machine drain pipe passes through the floor drain cover and connects directly to the guide pipe. This not only facilitates the connection between the washing machine drain pipe and the guide pipe, but also prevents the odors and flying insects in the sewer from entering the indoor environment through the washing machine drain channel due to loose connection or poor sealing between the washing machine drain pipe and the guide pipe. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the washing machine drain core in Embodiment 1 of this utility model. Figure 1 ;

[0021] Figure 2 This is a side view of the drain core of the washing machine in Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the washing machine drain core in Embodiment 1 of this utility model. Figure 2 ;

[0023] Figure 4This is a schematic diagram of the structure of the washing machine drain core flap when it is opened in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the drain core of the washing machine in Embodiment 1 of this utility model. Figure 1 ;

[0025] Figure 6 This is a schematic cross-sectional view of the drain core of the washing machine in Embodiment 1 of this utility model. Figure 2 ;

[0026] Figure 7 This is a schematic cross-sectional view of the drain core of the washing machine in Embodiment 1 of this utility model. Figure 3 ;

[0027] Figure 8 This is a schematic cross-sectional view of the drain core of the washing machine in Embodiment 1 of this utility model. Figure 4 ;

[0028] Figure 9 This is a schematic diagram of the drain structure in Embodiment 2 of this utility model;

[0029] Figure 10 This is an exploded view of the drain structure in Embodiment 2 of this utility model;

[0030] Figure 11 This is a schematic diagram illustrating the installation principle of the transfer tube and the core in Embodiment 2 of this utility model. Figure 1 ;

[0031] Figure 12 This is a schematic diagram illustrating the installation principle of the transfer tube and the core in Embodiment 2 of this utility model. Figure 2 .

[0032] In the diagram: 1. Core; 11. Guide pipe; 12. Isolation plate; 13. Water inlet; 14. First drain outlet; 15. Second drain outlet; 16. Sealing ring; 17. Mounting block; 2. Flip plate; 3. Sealing element; 31. Movable magnetic block; 32. Fixed magnetic block; 4. Drain body; 5. Mounting base; 51. Mounting groove; 6. Drain cover; 61. Through hole; 7. Adapter pipe; 71. Connector; 72. Fixed ring; 73. Fixed ring; 74. Sealing sleeve. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification 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 application 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 application.

[0034] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0035] Example 1

[0036] As attached Figure 1-8 As shown, a washing machine drain core includes a core body 1, a flap 2, and a sealing element 3.

[0037] The core 1 is a vertically arranged tubular structure with a water inlet 13 at its upper end and a sewage flow channel inside. The core 1 gradually tapers from its upper end to its lower end, and a first drain outlet 14 and a second drain outlet 15 are provided on the same side of the core 1.

[0038] The second drain outlet 15 is semi-circular and located at the bottom of the core 1. The inlet 13 is connected to the second drain outlet 15, thus forming a second drainage channel inside the core 1. Wastewater flowing into the core 1 from the inlet 13 flows out from the second drain outlet 15 and merges into the sewage pipe.

[0039] The flap 2 is a flat structure, and its shape and size are adapted to the second drain outlet 15, so that the flap 2 can completely cover and seal the drain outlet, preventing odors or flying insects in the sewage pipe from entering the room through the second drain outlet 15.

[0040] The top of the flap 2 is provided with a hinge shaft that cooperates with the core 1, thereby realizing the hinge connection between the flap 2 and the core 1. When the sewage in the second drainage channel flows out from the second drain outlet 15, the flap 2 is impacted by the sewage and rotates towards the side away from the second drain outlet 15.

[0041] In particular, please refer to the appendix. Figure 2The second drain outlet 15 of the core 1 is not vertically positioned but rather extends at an angle towards the flap 2, meaning the second drain outlet 15 is slightly tilted upwards. Therefore, under its own weight, the flap 2 can cover the second drain outlet 15 and exert a certain pressure on it in a natural state.

[0042] The sealing element 3 is used to enhance the sealing performance of the flap 2 to the second drain outlet 15. In this embodiment, the sealing element 3 includes a movable magnetic block 31 and a fixed magnetic block 32 that correspond to each other.

[0043] The movable magnetic block 31 is fixed at the middle position of the bottom of the flap 2, and is located on the side of the flap 2 away from the second drain outlet 15. When the flap 2 is rotated by the impact of sewage, the movable magnetic block 31 can act as a counterweight on the flap 2, relying on gravity to cause the flap 2 to close the second drain outlet 15. Furthermore, since the movable magnetic block 31 is farthest from the hinge axis between the flap 2 and the core 1, its effect as a counterweight is optimal at this time.

[0044] The fixed magnetic block 32 is disposed at the bottom of the core 1 near the second drain outlet 15. Specifically, a groove is formed in the center of the bottom of the core 1 at the second drain outlet 15, with the opening direction of the groove facing away from the opening direction of the second drain outlet 15. The fixed magnetic block 32 is embedded in the groove and close to the flap 2. Thus, the fixed magnetic block 32 and the movable magnetic block 31 are respectively located on both sides of the flap 2, and their positions correspond to each other and their magnetic properties are opposite, allowing them to attract each other.

[0045] When the flap 2 is placed on the second drain outlet 15, the distance between the fixed magnetic block 32 and the movable magnetic block 31 is the smallest, and the attraction between them is the largest, thereby maintaining the high sealing performance of the flap 2 on the second drain outlet 15.

[0046] In some other embodiments, the seal 3 also includes a sealing soft rubber layer disposed on the flap 2 or at the edge of the second drain outlet 15. The sealing soft rubber layer can reduce the gap between the flap 2 and the second drain outlet 15, thereby improving the sealing performance.

[0047] The core 1 is also equipped with a flow guide tube 11 and an isolation plate 12.

[0048] As attached Figure 4-8As shown, the guide pipe 11 is a vertically arranged cylindrical straight pipe structure inside the core 1. The outer wall of the guide pipe 11 does not contact the inner wall of the core 1, the axis of the guide pipe 11 coincides with the axis of the core 1, and the top of the guide pipe 11 is higher than the core 1, so that the annular gap between the outer wall of the guide pipe 11 and the inner wall of the core 1 becomes the inlet 13. The guide pipe 11 is located in the center of the core 1, which can avoid the outer wall of the guide pipe 11 from contacting the inner wall of the core 1 at the inlet 13, ensuring that the ground drainage can flow into the inlet 13 from all directions of the core 1.

[0049] The isolation plate 12 is disposed between the guide pipe 11 and the inner wall of the core 1, and the guide pipe 11 is fixed inside the core 1 by the isolation plate 12. Furthermore, the bottom of the guide pipe 11 is connected to the first drain outlet 14 through the isolation plate 12 to form a first drain channel.

[0050] The partition plate 12 is used to fix the guide pipe 11 inside the core 1 and serves as a connecting plate between the guide pipe 11 and the first drain outlet 14. Therefore, the partition plate 12 is usually set around the connection between the guide pipe 11 and the first drain outlet 14 to separate the internal space of the guide pipe 11 from the internal space of the core 1. Thus, the partition plate 12 can be set as one or more flat or curved plate structures depending on the different shapes of the openings at the bottom of the guide pipe 11. In this embodiment, the bottom surface of the guide pipe 11 is closed and does not communicate with the internal space of the core 1, but the side of the bottom of the guide pipe 11 communicates with the first drain outlet 14. Therefore, the partition plate 12 is set to include a horizontally arranged flat plate and two vertically arranged curved plates. Thus, a first drainage channel is formed inside the core 1 but independent of the internal space of the core 1. Sewage entering the guide pipe 11 flows directly from the first drain outlet 14 into the sewage pipe along the guide pipe 11. The first drainage channel and the second drainage channel drain independently.

[0051] In this embodiment, the first drain outlet 14 and the second drain outlet 15 on the core 1 are located on the same side of the core 1, and the first drain outlet 14 is located directly above the second drain outlet 15. This allows the wastewater flowing out of the first drain outlet 14 at high speed to impact and flush the second drain outlet 15 during its downward flow, thereby removing solid dirt from the second drain outlet 15 and enhancing the sealing performance of the flap 2 on the second drain outlet 15.

[0052] In some other embodiments, the first drain outlet 14 and the second drain outlet 15 can be located on different sides of the core 1, for example, they can be located opposite each other. At the same time, the first drain outlet 14 can also be lower than or equal to the height of the second drain outlet 15. In this case, the flow direction of sewage in the first drain outlet 14 and the second drain outlet 15 is opposite, and the first drain outlet 14 and the second drain outlet 15 do not interfere with each other when draining.

[0053] The core 1 is also provided with a sealing ring 16 and a mounting block 17 for installing the core 1 into the drain structure. The sealing ring 16 is used to install and fix the sealing ring, thereby enhancing the sealing effect between the core 1 and the drain structure. The mounting block 17 is provided on the outer wall of the core 1, which enables the core 1 to form a snap-fit ​​with the drain structure.

[0054] The implementation principle of the above embodiments is as follows:

[0055] When the washing machine drain core of this utility model is installed inside the drain structure, the drain pipe of the washing machine and the guide pipe 11 need to be connected and sealed. This drain then simultaneously functions as both floor drainage and washing machine drainage. Specifically, when the drain operates in the conventional floor drainage mode, wastewater flows naturally into the annular inlet 13 of the core 1 under gravity, and then flows through the flap 2 along the second drainage channel into the sewage pipe from the second drain outlet 15. When the drain operates in the washing machine drainage mode, wastewater from the washing machine flows directly into the guide pipe 11 along the washing machine's drain pipe and then flows into the sewage pipe from the first drain outlet 14 along the first drainage channel. Furthermore, the drain core of this utility model supports simultaneous floor drainage and washing machine drainage, thus completely solving the problem of water accumulation on the floor caused by a large amount of water drained by the washing machine in a short period.

[0056] Example 2

[0057] As attached Figure 9-12 As shown, this utility model discloses a floor drain structure, including a floor drain body 4, a mounting base 5, a floor drain cover 6, a connecting pipe 7, and the washing machine drain core in Embodiment 1.

[0058] The drain body 4, mounting base 5, and drain cover 6 are all existing technologies. The drain body 4 is installed on the ground and connected to the sewage pipe. The drain core is installed in the mounting base 5, and the mounting base 5 with the drain core is then inserted into the drain body 4, so that the drain core extends into the sewage pipe. The mounting base 5 is installed and fixed to the drain body 4 by threads. The drain cover 6 is a circular plate structure that covers the drain body 4. The drain cover 6 is equipped with a filter screen, which can reduce the frequency of solid waste from the ground flowing into the drain and causing blockage.

[0059] The inner wall of the mounting base 5 has two L-shaped mounting grooves 51, and the outer wall of the core 1 has two mounting blocks 17 corresponding to the mounting grooves 51. The mounting blocks 17 are elongated protrusions, and their length direction is inclined horizontally. To facilitate the installation of the core 1 into the mounting base 5, the core 1 also has two indicator arrows corresponding to the positions of the mounting blocks 17. During actual installation, after aligning the indicator arrows on the core 1 with the vertical openings of the mounting grooves 51 on the mounting base 5, the core 1 is pressed down, and the two mounting blocks 17 immediately enter their respective mounting grooves 51. Then, rotating the core 1 along its axis allows the mounting blocks 17 to slide within the mounting grooves 51, ultimately locking the core 1 into the mounting base 5. To enhance the sealing effect between the core 1 and the mounting base 5, a rubber sealing ring can be fitted onto the sealing ring 16 on the core 1.

[0060] One end of the adapter pipe 7 is equipped with a stepped plug, and a rubber sealing ring is fitted on the plug for connecting, fixing, and sealing with the drain pipe of the washing machine. The other end of the adapter pipe 7 is equipped with a connector 71 with threads on its outer wall. A circular retaining ring 72 is horizontally positioned on the outer wall of the adapter pipe 7, directly above the connector 71.

[0061] A circular through hole 61 is provided at the center of the drain cover 6. The diameter of the connector 71 is smaller than the diameter of the through hole 61 and the diameter of the retaining ring 72 is larger than the diameter of the through hole 61, so that the connector 71 on the adapter pipe 7 can pass through the through hole 61 and only the connector 71 can pass through the through hole 61.

[0062] The adapter pipe 7 also includes a retaining ring 73. The retaining ring 73 is located below the drain cover 6, and its diameter is larger than that of the through hole 61. The inner wall of the retaining ring 73 is provided with threads. After the connector 71 passes through the through hole 61, the retaining ring 73 engages with the connector 71 through the threads and is tightened, thereby fixing the connector 71 to the drain cover 6.

[0063] The inner diameter of connector 71 is larger than the outer diameter of guide pipe 11. When drain cover 6 is installed on drain body 4, guide pipe 11 is inserted into connector 71 of adapter pipe 7. To enhance the sealing performance between adapter pipe 7 and guide pipe 11, a cylindrical sealing sleeve 74 is also fitted inside connector 71 of adapter pipe 7. The sealing sleeve 74 can be made of flexible rubber material, with an outer diameter slightly larger than the inner diameter of connector 71 and an inner diameter slightly smaller than the outer diameter of guide pipe 11. This seals the connection point after guide pipe 11 is inserted into connector 71, preventing odors and flying insects from sewage pipes from entering the room through this connection point.

[0064] The adapter pipe 7 is connected to the washing machine's drain pipe. Those skilled in the art will understand that the washing machine's drain pipe is only opened and connected to the washing machine when it is draining; therefore, odors from the sewage pipe cannot enter the room through the washing machine's drain pipe. The floor drain structure in this embodiment includes two independent drainage channels. The first drainage channel is dedicated to washing machine drainage, achieving isolation and sealing from the indoor environment through the washing machine's drain pipe; the second drainage channel is dedicated to floor drainage, achieving isolation and sealing from the indoor environment through the flap 2. Both drainage channels can drain independently or simultaneously while remaining isolated from the indoor environment, and their drainage functions do not affect each other.

[0065] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A washing machine drain core, comprising a core body (1) and a flap (2), wherein the core body (1) is provided with a water inlet (13) and a second drain outlet (15), the flap (2) is hinged to the core body (1) and the flap (2) covers and blocks the second drain outlet (15), and the water inlet (13) and the second drain outlet (15) communicate inside the core body (1) to form a second drainage channel, characterized in that, The core (1) is also provided with a guide pipe (11), an isolation plate (12) and a first drain outlet (14). The isolation plate (12) is disposed between the guide pipe (11) and the inner wall of the core (1). The guide pipe (11) is fixed inside the core (1) by the isolation plate (12) and the outer wall of the guide pipe (11) does not contact the inner wall of the core (1). The bottom of the guide pipe (11) is connected to the first drain outlet (14) to form a first drainage channel. The first drainage channel and the second drainage channel drain water independently.

2. The washing machine drain core according to claim 1, characterized in that, The isolation plate (12) is arranged around the connection between the guide pipe (11) and the first drain outlet (14).

3. The washing machine drain core according to claim 1, characterized in that, The core (1) and the guide pipe (11) are both vertically arranged and the axis of the guide pipe (11) coincides with the axis of the core (1). The water inlet (13) is the annular gap between the outer wall of the guide pipe (11) and the inner wall of the core (1).

4. The washing machine drain core according to claim 1, characterized in that, On the core (1), the first drain outlet (14) is located above the second drain outlet (15).

5. The washing machine drain core according to claim 1, characterized in that, The first drain outlet (14) and the second drain outlet (15) are located on the same side of the core (1).

6. The washing machine drain core according to claim 1, characterized in that, It also includes a sealing element (3), which is used to enhance the sealing of the flap (2) to the second drain outlet (15). The sealing element (3) includes a movable magnetic block (31) and a fixed magnetic block (32) corresponding to each other. The movable magnetic block (31) is fixed to the bottom of the flap (2) and located on the side of the flap (2) away from the second drain outlet (15). The fixed magnetic block (32) is located at the bottom of the core (1) near the second drain outlet (15). The fixed magnetic block (32) and the movable magnetic block (31) are arranged facing each other and have opposite magnetic properties.

7. A floor drain structure, comprising a floor drain body (4), a mounting base (5), and a floor drain cover (6), wherein the mounting base (5) is located inside the floor drain body (4), and the floor drain cover (6) is disposed on the floor drain body (4), characterized in that, It also includes the washing machine drain core according to any one of claims 1-6, wherein the core (1) is installed in the drain body (4) through the mounting base (5), and the guide pipe (11) is connected to the drain pipe of the washing machine.

8. The drain structure according to claim 7, characterized in that, The outer wall of the core (1) is also provided with a mounting block (17), and the inner wall of the mounting seat (5) is provided with a mounting groove (51). The core (1) and the mounting seat (5) are connected and installed by the mounting block (17) and the mounting groove (51).

9. The drain structure according to claim 7, characterized in that, It also includes a transfer pipe (7), on which a through hole (61) is provided. One end of the transfer pipe (7) passes through the through hole (61) and is connected to the guide pipe (11). The other end of the transfer pipe (7) is connected to the drain pipe of the washing machine.

10. The drain structure according to claim 9, characterized in that, The adapter pipe (7) includes a connector (71), a retaining ring (72), and a retaining ring (73). The connector (71) is located at the end of the adapter pipe (7) that connects to the guide pipe (11). The retaining ring (72) is located above the connector (71). The diameter of the connector (71) is smaller than the diameter of the through hole (61), and the diameter of the retaining ring (72) is larger than the diameter of the through hole (61). The retaining ring (73) is located below the funnel cover and is threadedly engaged with the connector (71).

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