Drain pipe assembly

By designing a mounting bracket, suction cup, and insect-proof components for the drain pipe assembly, the problem of insects and impurities entering the washing machine drain pipe when it is not in use is solved, ensuring smooth drainage and a tight seal.

CN224133415UActive Publication Date: 2026-04-17GUANGDONG JINLI ELECTRIC APPLIANCE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JINLI ELECTRIC APPLIANCE MFG CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

When not in use, the drain pipe of a current washing machine is left open, allowing insects or impurities to enter, causing blockage or contamination of the pipe.

Method used

A drain pipe assembly was designed, comprising a mounting base, a suction cup assembly, an insect-proof assembly, and a solenoid valve. The suction cup ensures a sealed connection, the insect-proof assembly uses a torsion spring and the rotation mechanism of the insect-proof cover to prevent debris from entering, and the solenoid valve controls the water flow.

Benefits of technology

It ensures smooth drainage under different water flow conditions, prevents insects and debris from entering, and improves sealing and reliability to avoid leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of drainage pipes, and discloses a drainage pipe assembly which comprises a drainage pipe, a fixing base is fixedly connected to the outer side of the bottom of the drainage pipe, two suction cup assemblies are arranged on the outer side of the fixing base, an outlet head is fixedly connected to the bottom of the drainage pipe, and an insect prevention assembly is arranged on the outer side of the outlet head. The insect prevention assembly comprises two connecting blocks, a rotating shaft is fixedly connected between the two connecting blocks, a connecting block is rotatably connected to the outer side of the rotating shaft, a plurality of torsional springs sleeve the outer side of the rotating shaft, an insect prevention cover is fixedly connected to the outer side of the connecting block, and a plurality of leakage nets are fixedly connected to the interior of the insect prevention cover. When the water flow is small, water flows out through the leakage net, when the water flow is increased, the water flow pushes the insect prevention cover to rotate and drives the connecting block to compress the torsion spring, when the water flow is reduced, the torsion spring enables the insect prevention cover to reset and be attached to the outlet head, water continues to flow out through the leakage net, smooth drainage is guaranteed, and meanwhile insects and other sundries are prevented from entering the drainage pipe.
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Description

Technical Field

[0001] This utility model relates to the field of drainage pipes, and in particular to a drainage pipe assembly. Background Technology

[0002] Drainage pipes are piping systems used to discharge sewage, wastewater, and rainwater. Common materials include PVC, cast iron, and stainless steel. They connect the inside and outside of buildings, ensuring smooth water flow and preventing water accumulation that could cause hygiene and structural problems. Washing machine drain pipes are specifically designed to connect washing machines and guide washing water into the sewer system. They are typically made of rubber or plastic, possessing a degree of flexibility and durability, with a standard length of approximately 1.5–2 meters to accommodate the installation needs of washing machines in different locations.

[0003] In existing technology, when the washing machine is not in use, insects or impurities may enter the interior due to the open drain pipe, causing blockage or contamination of the pipe.

[0004] To address the above problems, a drainage pipe assembly is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drain pipe assembly, which aims to improve the problem in the prior art where, when the washing machine is not in use, insects or impurities can enter the interior due to the open drain pipe opening, causing pipe blockage or pollution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drain pipe assembly, including a drain pipe, a fixing seat fixedly connected to the outer side of the bottom of the drain pipe, two suction cup assemblies arranged on the outer side of the fixing seat, an outlet head fixedly connected to the bottom of the drain pipe, and an insect-proof assembly arranged on the outer side of the outlet head;

[0007] The insect-proof component includes two connecting blocks, a rotating shaft is fixedly connected between the two connecting blocks, a connecting block is rotatably connected to the outside of the rotating shaft, multiple torsion springs are sleeved on the outside of the rotating shaft, an insect-proof cover is fixedly connected to the outside of the connecting block, and multiple mesh screens are fixedly connected inside the insect-proof cover.

[0008] As a further description of the above technical solution:

[0009] The suction cup assembly includes multiple mounting brackets, with the outer side of each mounting bracket fixedly connected to the outer side of the mounting base, and a suction cup fixedly connected to the bottom of each mounting bracket.

[0010] As a further description of the above technical solution:

[0011] One end of the torsion spring is fixedly connected to the outside of the connecting block, and the other end of the torsion spring is fixedly connected to the outside of the connecting block.

[0012] As a further description of the above technical solution:

[0013] A solenoid valve is installed on the upper outer side of the drain pipe.

[0014] As a further description of the above technical solution:

[0015] The drain pipe is made of polyvinyl chloride.

[0016] As a further description of the above technical solution:

[0017] The shape of the insect-proof cover matches the shape of the outlet head.

[0018] As a further description of the above technical solution:

[0019] The mesh consists of four loops arranged in a ring inside the insect-proof cover.

[0020] As a further description of the above technical solution:

[0021] The top of the drain pipe is fixedly connected to a connector.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the water flow is small, the water flows out through the strainer. When the water flow increases, the water flow pushes the insect-proof cover to rotate, which drives the connecting block to compress the torsion spring. When the water flow decreases, the torsion spring causes the insect-proof cover to return to its original position and fit the outlet head, and the water continues to flow out through the strainer. This ensures smooth drainage while preventing insects and other debris from entering the drain pipe.

[0024] 2. In this utility model, the drain pipe is connected to the washing machine through the connector, and then the fixing base and outlet head are aligned with the floor drain and inserted. At this time, the suction cup will stick tightly to the ground, which ensures that the drain pipe will not loosen or leak due to vibration or water pressure changes during the drainage process, thereby improving the reliability and sealing of the entire drainage system. Attached Figure Description

[0025] Figure 1 This is a perspective view of a drainage pipe assembly proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of an insect-proof cover for a drainage pipe assembly proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Drain pipe; 2. Solenoid valve; 3. Connector; 4. Mounting base; 5. Mounting bracket; 6. Insect-proof cover; 7. Strainer; 8. Connecting block; 9. Connecting block; 10. Torsion spring; 11. Rotating shaft; 12. Outlet head; 13. Suction cup. Detailed Implementation

[0030] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a drain pipe assembly, including a drain pipe 1, a fixing seat 4 fixedly connected to the outer side of the bottom of the drain pipe 1, two suction cup assemblies arranged on the outer side of the fixing seat 4, an outlet head 12 fixedly connected to the bottom of the drain pipe 1, and an insect-proof assembly arranged on the outer side of the outlet head 12.

[0032] The insect-proof component includes two connecting blocks 9, with a rotating shaft 11 fixedly connected between the two connecting blocks 9. A connecting block 8 is rotatably connected to the outside of the rotating shaft 11. Multiple torsion springs 10 are sleeved on the outside of the rotating shaft 11. An insect-proof cover 6 is fixedly connected to the outside of the connecting block 8. Multiple mesh screens 7 are fixedly connected inside the insect-proof cover 6.

[0033] Specifically, the suction cup assembly ensures that the drain pipe 1 is firmly and sealed to the ground, preventing water leakage during drainage. The insect-proof assembly effectively prevents insects or other debris from entering the drain pipe 1. When the water flow is low, water will flow out through the mesh 7 inside the insect-proof cover 6. When the water flow increases, the impact force of the water flow will push the insect-proof cover 6 to rotate, which in turn will drive the connecting block 8 to rotate outside the rotating shaft 11, compressing the torsion spring 10. When the water flow decreases again, the elasticity of the torsion spring 10 will drive the connecting block 8 and the insect-proof cover 6 to rotate in opposite directions until the insect-proof cover 6 fits against the outlet head 12, so that the water can only flow out through the mesh 7, thereby achieving the insect-proof function.

[0034] Reference Figure 1 - Figure 3 The suction cup assembly includes multiple mounting brackets 5, with the outer side of the mounting bracket 5 fixedly connected to the outer side of the mounting base 4, and a suction cup 13 fixedly connected to the bottom of the mounting bracket 5.

[0035] Specifically, multiple mounting brackets 5 are fixed to the outside of the mounting base 4, increasing the stability of the contact area between the mounting base 4 and the ground. Each mounting bracket 5 has a suction cup 13 fixedly connected to its bottom. The suction cup 13 is tightly attached to the ground to form a seal and prevent water from leaking from the interface.

[0036] Reference Figure 1 - Figure 3 One end of the torsion spring 10 is fixedly connected to the outside of the connecting block 9, and the other end of the torsion spring 10 is fixedly connected to the outside of the connecting block 8. A solenoid valve 2 is provided on the upper outer side of the drain pipe 1. The drain pipe 1 is made of polyvinyl chloride. The shape of the insect cover 6 matches the outlet head 12. There are four strainers 7 distributed in a ring inside the insect cover 6. A connector 3 is fixedly connected to the top of the drain pipe 1.

[0037] Specifically, the shape of the insect-proof cover 6 matches the outlet head 12, ensuring a tight fit when there is no water flow, preventing insects or other debris from entering the drain pipe 1. Four mesh screens 7 are arranged in a ring inside the insect-proof cover 6. When the water flow is small, water can flow out through the mesh screens 7; when the water flow increases, the impact force of the water flow will push the insect-proof cover 6 to rotate, which in turn will drive the connecting block 8 to rotate outside the rotating shaft 11, compressing the torsion spring 10; when the water flow decreases again, the elasticity of the torsion spring 10 will drive the connecting block 8 and the insect-proof cover 6 to rotate in opposite directions until the insect-proof cover 6 fits the outlet head 12, ensuring that water can only flow out through the mesh screens 7. The suction cup 13 ensures a firm and sealed connection between the drain pipe 1 and the ground, preventing water leakage. The solenoid valve 2 installed on the upper outer side of the drain pipe 1 can control the opening and closing of the water flow, ensuring smooth drainage. The drain pipe 1 is made of polyvinyl chloride material, which has good corrosion resistance and durability. The connector 3 is easy to connect to the washing machine, making installation and disassembly convenient.

[0038] Working principle: When in use, connect the drain pipe 1 to the washing machine through connector 3, and then insert the fixing base 4 and outlet head 12 into the floor drain. At this time, the suction cup 13 will stick tightly to the ground, ensuring that the connection between the drain pipe 1 and the floor drain is tight and reliable, and preventing water leakage due to loosening during drainage. At this time, open the solenoid valve 2, and the water from the washing machine will enter the drain pipe 1 and flow into the floor drain through the outlet head 12. When the water flow is small, the water will flow out from the four mesh screens 7. When the water flow is large, it will push the insect cover 6 to rotate, which will drive the connecting block 8 to rotate outside the rotating shaft 11, thereby compressing the torsion spring 10. When the water flow is small again, the connecting block 8 and the insect cover 6 will rotate in the opposite direction under the action of the torsion spring 10 until they are in contact with the outlet head 12, so that the water can be discharged from the mesh screens 7, preventing insects or other debris from entering the drain pipe 1.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drain assembly comprising a drain pipe (1), characterized in that: The drain pipe (1) is fixedly connected to a fixing seat (4) on the outer side of the bottom. Two suction cup assemblies are provided on the outer side of the fixing seat (4). The drain pipe (1) is fixedly connected to an outlet head (12) on the bottom. An insect-proof assembly is provided on the outer side of the outlet head (12). The insect-proof component includes two connecting blocks (9), a rotating shaft (11) is fixedly connected between the two connecting blocks (9), a connecting block (8) is rotatably connected to the outside of the rotating shaft (11), a plurality of torsion springs (10) are sleeved on the outside of the rotating shaft (11), an insect-proof cover (6) is fixedly connected to the outside of the connecting block (8), and a plurality of mesh screens (7) are fixedly connected inside the insect-proof cover (6).

2. A drain assembly according to claim 1, wherein: The suction cup assembly includes multiple fixing frames (5), the outer side of the fixing frame (5) is fixedly connected to the outer side of the fixing base (4), and the bottom of the fixing frame (5) is fixedly connected to a suction cup (13).

3. A drain assembly according to claim 1, wherein: One end of the torsion spring (10) is fixedly connected to the outside of the connecting block (9), and the other end of the torsion spring (10) is fixedly connected to the outside of the connecting block (8).

4. A drain assembly according to claim 1, wherein: A solenoid valve (2) is installed on the outer side of the upper part of the drain pipe (1).

5. A drain assembly according to claim 1, wherein: The drain pipe (1) is made of polyvinyl chloride.

6. A drain assembly according to claim 1, wherein: The shape of the insect-proof cover (6) matches that of the outlet head (12).

7. A drain assembly according to claim 1, wherein: The mesh (7) consists of four meshes arranged in a ring inside the insect-proof cover (6).

8. A drain assembly according to claim 1, wherein: The drain pipe (1) is fixedly connected to a connector (3) at the top.