A washing machine drain

Abstract

The utility model discloses a washing machine water drainer, including from top to bottom connection's water outlet joint, the receiving cylinder, the water drain cylinder and the deodorization valve. Adopt split type design, through receiving cylinder both ends connect water outlet joint and water drain cylinder respectively, jointly constitute the drainage channel, and the overflow hole that receives the cylinder outer wall is equipped with and communicates with the drainage channel, and the water outlet joint outer cover is equipped with floor drain cover, and this floor drain cover is limited between the support part of water outlet joint outer wall and receiving cylinder end portion. The utility model discloses through introducing receiving cylinder this key connecting piece, has realized the modularization of each component dismounting, solved the problem that traditional integral type floor drain cover connection loosens, has connection reliable, assembly convenient and so on.

Description

Technical Field

[0001] This utility model relates to the field of drainage device technology, and in particular to a washing machine drain device. Background Technology

[0002] Washing machines have become an indispensable household appliance in daily life. Washing machines are characterized by a large instantaneous flow and rapid drainage, thus placing high demands on the unobstructed flow and sealing of the drain pipes. Traditional washing machine drain kits typically use a single, integrated drain connector that is directly inserted into the floor drain to achieve drainage.

[0003] In existing technology, a common washing machine drain assembly structure is an integrated design where the drain cover and the main body of the drain assembly are one piece, meaning the drain cover (face cover) and its lower drum are an inseparable unit. During installation, this structure requires inserting and securing the entire drum into the drain socket or wall drain pipe. This structure has significant drawbacks: firstly, its function is primarily limited to filtering hair and basic drainage, and it cannot be used as a connecting component; secondly, the lack of reliable connection methods between the components leads to poor stability of the entire drain assembly, and the drain cover is prone to loosening. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a washing machine drain device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a washing machine drain assembly, comprising a drain connector, a drain tube, and an odor-proof valve connected sequentially from top to bottom; it also includes a receiving tube, the two ends of which are respectively connected to the drain connector and the drain tube, and together they form a drainage channel; an overflow hole communicating with the drainage channel is provided on the side wall of the receiving tube; a floor drain cover is fitted onto the drain connector, and the floor drain cover is confined between the support portion of the outer wall of the drain connector and the end of the receiving tube.

[0006] As a preferred technical solution of this utility model, the inner wall of the receiving cylinder is provided with an internal thread, and its two ends are respectively screwed to the external threads provided on the drain cylinder and the drain connector through the internal thread; the internal thread is a full thread structure that runs through the entire length of the receiving cylinder, or a partial thread structure distributed on the inner wall portion at both ends.

[0007] As a preferred embodiment of this utility model, the lower end of the drain connector is connected to an inner pipe, which is located inside the receiving cylinder and extends downward beyond the lower end face of the receiving cylinder.

[0008] As a preferred technical solution of this utility model, the diameter of the inner pipe gradually decreases downward along the drainage direction, forming a tapered structure.

[0009] As a preferred embodiment of the present invention, a sealing element is provided on the outer wall of the drain cylinder, the sealing element comprising a sleeve portion and a plurality of sealing rings arranged axially at intervals along the outer wall of the sleeve portion.

[0010] As a preferred technical solution of this utility model, the odor-proof valve is a flap-type odor-proof valve.

[0011] As a preferred embodiment of this utility model, the drainage connector includes a main drainage pipe coaxially arranged with the receiving cylinder, and a branch drainage pipe inclinedly connected to the side wall of the main drainage pipe.

[0012] As a preferred embodiment of this utility model, it further includes a drain base; the drain cylinder is sealed and plugged into the insertion hole of the drain base; a water storage tank is formed inside the drain base, and the overflow hole on the receiving cylinder corresponds to the position of the water storage tank after assembly; the drain cover is located above the drain base, and an overflow gap is formed between the outer periphery of the drain cover and the drain base, and / or, a plurality of drainage holes are provided on the drain cover.

[0013] Compared with existing technologies, the advantages of this utility model are: by using the receiving cylinder as the core connecting component, modular separation of the drain connector, drain cylinder, and floor drain cover is achieved. During installation, assembly can be quickly completed simply by screwing in the threads, without the need for special tools. When it is necessary to clean blockages or replace parts (such as the odor-proof valve), each component can be easily disassembled, greatly simplifying the maintenance process and reducing subsequent maintenance costs. At the same time, the floor drain cover is pressed against the drain connector, resulting in a more secure and reliable connection compared to traditional plug-in structures, preventing components from loosening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model without the drain seat; Figure 4 This is a schematic diagram of the structure of the receiving cylinder in this utility model; Figure 5 This is a schematic diagram of the structure of the drainage connector and the inner pipe fitting in this utility model; Figure 6 This is a schematic diagram of another type of drain cover and drain seat assembly in this utility model.

[0015] Reference numerals in the attached drawings: 1. Drain connector; 2. Drain sleeve; 3. Odor-proof valve; 4. Receiver sleeve; 5. Drain channel; 6. Overflow hole; 7. Floor drain cover; 8. Inner pipe; 9. Seal; 10. Sleeve part; 11. Sealing ring; 12. Main drain pipe; 13. Branch drain pipe; 14. Floor drain seat; 15. Insertion hole; 16. Water storage tank; 17. Overflow gap; 18. Drain hole. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1-6 The washing machine drain assembly shown includes a drain connector 1, a drain tube 2, and an odor-proof valve 3 connected sequentially from top to bottom; it also includes a receiving tube 4, with its two ends connected to the drain connector 1 and the drain tube 2 respectively, forming a drainage channel 5 together; an overflow hole 6 communicating with the drainage channel 5 is provided on the side wall of the receiving tube 4; a floor drain cover 7 is fitted onto the drain connector 1, and the floor drain cover 7 is confined between the support part (preferably annular, or it can be several protrusions arranged at intervals on the outer wall of the drain connector 1, any structure that can play a blocking and supporting role is included within the protection scope of this application) and the end of the receiving tube 4. In this application, the receiving tube 4 acts as a "connector," with an overflow hole 6 on its outer wall, enabling the drain assembly to perform the main drainage function (achieved by the drain connector 1, inner pipe 8, and drain tube 2) while also having the emergency capacity for draining surface water (overflow hole 6 of the receiving tube 4), realizing the integration and expansion of functions, and possessing high practical value. In this embodiment, the odor-proof valve 3 is preferably a flap-type odor-proof valve 3, which is a conventional technology in the art and can be directly purchased commercially. It is understood that the specific structure of the odor-proof valve 3 is not limited to this, and it can also be other forms well known to those skilled in the art, such as a float-type odor-proof valve 3 or a magnetic closing valve, etc. Any structure that can achieve a one-way sealing drainage function should be included within the protection scope of this invention.

[0019] Using the receiving sleeve 4 as the core connector, the drain connector 1, drain cylinder 2, and drain cover 7 are modularly separated. During installation, assembly can be quickly completed simply by screwing them together, without the need for special tools. When it is necessary to clean blockages or replace parts (such as the odor-proof valve 3), each component can be easily disassembled, greatly simplifying the maintenance process and reducing subsequent maintenance costs. At the same time, the drain cover 7 is pressed against the drain connector 1, resulting in a more secure and reliable connection compared to traditional plug-in structures, preventing components from loosening.

[0020] The inner wall of the receiving cylinder 4 is provided with an internal thread, and its two ends are respectively screwed to the external threads provided on the drain cylinder 2 and the drain connector 1 through the internal thread; the internal thread is a full thread structure that runs through the entire length of the receiving cylinder 4, or a partial thread structure distributed on the inner wall portion at both ends of it.

[0021] The lower end of the drain connector 1 is connected (integral, plug-in, threaded, etc.) to an inner pipe 8. The inner pipe 8 is located inside the receiving cylinder 4 and extends downwards beyond the lower end face of the receiving cylinder 4. The diameter of the inner pipe 8 gradually decreases downwards along the drainage direction, exhibiting a tapered structure. The design of the inner pipe 8 extending from the lower end of the drain connector 1, especially the specified tapered structure, guides and converges the drainage, accelerates the water flow, and facilitates the complete drainage of water in the pipe, reducing stagnation. Simultaneously, the drain cover 7 is directly pressed and fixed to the support part of the drain connector 1 through the end of the receiving cylinder 4, ensuring a clear and stable assembly relationship and avoiding the problem of the drain cover 7 easily loosening in traditional structures.

[0022] A sealing element 9 is fitted on the outer wall of the drain cylinder 2. The sealing element 9 includes a sleeve portion 10 and a plurality of sealing rings 11 arranged axially at intervals along the outer wall of the sleeve portion 10.

[0023] The drain connector 1 includes a main drain pipe 12 coaxially arranged with the receiving cylinder 4, and a branch drain pipe 13 inclinedly connected to the side wall of the main drain pipe 12. The main drain pipe 12 can be connected to the water pipe of a washing machine, and the branch drain pipe 13 can be connected to the drain pipe of other facilities such as washbasins or faucets.

[0024] like Figure 1 As shown, it also includes a drain base 14; the drain cylinder 2 is sealed and plugged into the insertion hole 15 of the drain base 14; a water storage tank 16 is formed inside the drain base 14, and the overflow hole 6 on the receiving cylinder 4 corresponds to the position of the water storage tank 16 after assembly; the drain cover 7 is located above the drain base 14, and an overflow gap 17 is formed between the outer periphery of the drain cover 7 and the drain base 14; as shown Figure 6 As shown, and / or, the drain cover 7 is provided with a plurality of drainage holes 18.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A washing machine drain assembly, comprising a drain connector (1), a drain tub (2), and an odor-proof valve (3) connected sequentially from top to bottom; characterized in that, It also includes a receiving cylinder (4), the two ends of which are connected to the drain connector (1) and the drain cylinder (2) respectively, and together they form a drainage channel (5); an overflow hole (6) communicating with the drainage channel (5) is provided on the side wall of the receiving cylinder (4); a floor drain cover (7) is fitted on the drain connector (1), and the floor drain cover (7) is limited between the support part of the outer wall of the drain connector (1) and the end of the receiving cylinder (4).

2. The washing machine drain assembly according to claim 1, characterized in that: The inner wall of the receiving cylinder (4) is provided with an internal thread, and its two ends are respectively screwed to the external threads provided on the drain cylinder (2) and the drain connector (1) through the internal thread; the internal thread is a full thread structure that runs through the entire length of the receiving cylinder (4), or a partial thread structure distributed on the inner wall portion at both ends.

3. The washing machine drain assembly according to claim 1, characterized in that: The lower end of the drain connector (1) is connected to an inner pipe (8), which is located inside the receiving cylinder (4) and extends downward beyond the lower end face of the receiving cylinder (4).

4. The washing machine drain assembly according to claim 3, characterized in that: The diameter of the inner pipe (8) gradually decreases downward along the drainage direction, forming a tapered structure.

5. The washing machine drain assembly according to claim 1, characterized in that: The outer wall of the drain cylinder (2) is fitted with a sealing element (9), which includes a sleeve portion (10) and a plurality of sealing rings (11) arranged axially at intervals along the outer wall of the sleeve portion (10).

6. The washing machine drain assembly according to claim 1, characterized in that: The odor-proof valve (3) is a flap-type odor-proof valve (3).

7. The washing machine drain assembly according to claim 1, characterized in that: The drain connector (1) includes a main drain pipe (12) coaxially arranged with the receiving cylinder (4) and a branch drain pipe (13) inclinedly connected to the side wall of the main drain pipe (12).

8. The washing machine drain assembly according to claim 1, characterized in that: It also includes a drain base (14); the drain cylinder (2) is sealed and plugged into the insertion hole (15) of the drain base (14); a water storage tank (16) is formed inside the drain base (14), and the overflow hole (6) on the receiving cylinder (4) corresponds to the position of the water storage tank (16) after assembly; the drain cover (7) is located above the drain base (14), and an overflow gap (17) is formed between the outer periphery of the drain cover (7) and the drain base (14), and / or, a plurality of drainage holes (18) are provided on the drain cover (7).

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