Water level gauge for drainer with overflow function

By designing inlet and outlet pipes composed of multiple sub-pipes, combined with water level gauges featuring sealing and positioning grooves, the problem of adapting drainers with built-in overflow function to different sizes of washbasins and preventing siphoning was solved, achieving stable overflow height and quick installation.

CN224199985UActive Publication Date: 2026-05-05CHAOZHOU YICHUAN SANITARY WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHAOZHOU YICHUAN SANITARY WARE CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing drains with built-in overflow functions are difficult to adapt to different sizes of washbasins, and the overflow height is prone to change when using hot water, and there is also a siphon phenomenon.

Method used

A water level sensor is designed, including an inlet pipe, an outlet pipe, a water level sensor body, and a mounting component. The water level sensor is fixed to the mounting component by a support. The inlet and outlet pipes are composed of multiple pipe segments, with a combination of rigid and flexible pipe sections. They are equipped with sealing grooves and positioning grooves to adapt to different sizes of washbasins and to prevent siphoning.

Benefits of technology

It is compatible with different sizes of washbasins, has a fixed overflow height, prevents siphoning, and is quick to install with good sealing.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224199985U_ABST
    Figure CN224199985U_ABST
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Abstract

The water level device comprises a water inlet pipe, a water outlet pipe, a water level device body and an installation piece, the top of the water level device body extends outwards to form a supporting part, an installation groove is formed in one end of the installation piece, the water level device body is arranged in the installation groove and clamped on the installation piece through the supporting part, and the water level device body is arranged in the installation groove. The fixing groove of the installation part is fixed below the faucet through the connecting nut of the faucet, so that the height of the water level device is slightly lower than the basin surface of the hand washing basin and close to the height of a traditional overflow port, the air hole is formed in the top of the water level device body, and the top of the water level device body is provided with the anti-closing protruding point which can prevent the air hole from being covered by the hand washing basin. The air holes can prevent siphonage during overflow, water accumulated in the wash basin is prevented from completely flowing away, the water inlet pipe and the water outlet pipe are composed of a plurality of sub-pipe sections, and the water inlet pipe and the water outlet pipe can be cut according to the specification of the wash basin during installation, so that adaptability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of drainers, and in particular to a water level sensor for a drainer with a built-in overflow function. Background Technology

[0002] A drain assembly is installed on the drain hole of a washbasin to allow water to be stored and discharged. Washbasins typically have an overflow outlet for this purpose. To improve the aesthetics of washbasins, application number CN202421681539.3 proposes a drain assembly with a built-in overflow function, eliminating the need for an overflow outlet on the washbasin. However, in practical use, due to the varying sizes of washbasins, it is difficult to determine the appropriate overflow height for different sizes using only the rigid and flexible pipe sections. Furthermore, when using hot water for washing, the hot water softens the flexible pipe, causing variations in the overflow height. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a water level gauge for a drain with a built-in overflow function, including an inlet pipe, an outlet pipe, a water level gauge body, and a mounting component. The water level gauge body includes an inlet interface, an outlet interface, and an air vent. The top of the water level gauge body extends outward to form a support portion. One end of the mounting component is provided with a mounting groove, and the water level gauge body is placed in the mounting groove and secured to the mounting component by the support portion. The other end of the mounting component is provided with a fixing groove. The air vent is located at the top of the water level gauge body. The inlet interface and the outlet interface are located on both sides of the bottom of the water level gauge body. The inlet pipe and the outlet pipe are respectively inserted into the inlet interface and the outlet interface. The inlet pipe and the outlet pipe are composed of several sub-pipe segments. Each sub-pipe segment includes two rigid pipe sections and one flexible pipe section. The two rigid pipe sections are symmetrically arranged on both sides of the flexible pipe section.

[0004] Furthermore, the top surface of the water level sensor body protrudes upward to form an anti-sealing protrusion.

[0005] Furthermore, the inner surface of the rigid pipe section is provided with a positioning rail, and the water inlet and outlet interfaces are provided with positioning grooves that match the positioning rail.

[0006] Furthermore, the water inlet and water outlet are provided with sealing grooves above the positioning grooves, and sealing rings are provided on the sealing grooves.

[0007] Furthermore, the end of the rigid tube expands outward to form a guide opening.

[0008] Furthermore, the guide ports of adjacent sub-pipe sections are connected by a cutting section, the diameter of which is smaller than the diameter of the end of the guide port.

[0009] Furthermore, the top surface of the mounting component on the side with the fixing groove is higher than the top surface of the side with the mounting groove.

[0010] The beneficial effects of this utility model are as follows: 1. The mounting groove of the mounting component holds the water level sensor in place, and the fixing groove of the mounting component is fixed to the bottom of the faucet of the washbasin through the connecting nut of the washbasin faucet, so that the water level sensor is always located slightly below the top of the washbasin, which is convenient for fixing the overflow height; 2. The sealed protrusion can prevent the air hole from being blocked by the washbasin and prevent siphoning when overflowing; 3. The inlet pipe and outlet pipe are composed of multiple sub-pipe sections, which can be cut according to the height of the washbasin to fit various sizes of washbasins; 4. The guide port makes it easy to push the inlet pipe and outlet pipe into the inlet interface, outlet interface and drain interface, and the installation of the inlet pipe and outlet pipe can be completed by pushing the positioning rail into the positioning groove during installation, which is quick and easy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0012] Figure 2 This is a schematic diagram of the water level gauge body.

[0013] Figure 3 This is a schematic diagram of a sub-pipe section.

[0014] Figure 4 This is a schematic diagram of the installation components.

[0015] In the diagram: 1. Water level sensor body; 11. Inlet port; 12. Outlet port; 13. Air vent; 14. Anti-sealing protrusion; 15. Positioning groove; 16. Sealing groove; 17. Support part; 2. Mounting part; 21. Mounting groove; 22. Fixing groove; 3. Inlet pipe; 4. Outlet pipe; 51. Flexible hose part; 52. Rigid pipe part; 53. Guide port; 54. Positioning rail; 55. Cutting part; 6. Sealing ring. Detailed Implementation

[0016] Example: The present invention will be further described below with reference to the accompanying drawings. Referring to the drawings, a water level gauge for a drain with a built-in overflow function includes an inlet pipe 3, an outlet pipe 4, a water level gauge body 1, and a mounting component 2. The water level gauge body 1 includes an inlet port 11, an outlet port 12, and an air vent 13. The inlet port 11 and the outlet port 12 are connected. The top of the water level gauge body 1 extends outward to form a support portion 17. One end of the mounting component 2 is provided with a mounting groove 21. The water level gauge body 1 is placed in the mounting groove 21 and secured to the mounting component 2 by the support portion 17. The other end of the mounting component 2 is provided with a fixing groove 22. The fixing groove 22 of the mounting component is fixed to the washbasin below the faucet by a connecting nut, so that the height of the water level gauge 1 is slightly lower than the surface of the washbasin and close to the height of a traditional overflow outlet. At this time, the inner apex of the water level gauge is the overflow height of the washbasin. The air vent 13 is located on the water level gauge body. At the top of body 1, the air vent 13 communicates with the internal space of the water level device body, which can prevent siphoning when the water flows up and overflows the inner apex of the water level device body 1, thus preventing all the water accumulated in the washbasin from flowing away. The water inlet 11 and the water outlet 12 are located on the bottom sides of the water level device body 1. The water inlet pipe 3 and the water outlet pipe 4 are respectively inserted into the water inlet 11 and the water outlet 12. The water inlet pipe 3 and the water outlet pipe 4 are each composed of four sub-pipe segments. During installation, the water inlet pipe 3 and the water outlet pipe 4 can be cut according to the specifications of the washbasin, with each sub-pipe segment as a unit, so that the length of the water inlet pipe and the water outlet pipe is adapted to the washbasin. Each sub-pipe segment includes two rigid pipe sections 52 and one flexible pipe section 51. The two rigid pipe sections 52 are symmetrically arranged on both sides of the flexible pipe section 51. The flexible pipe section 51 allows the water inlet pipe 3 and the water outlet pipe 4 to be bent. The rigid pipe sections 52 are easy to cut and install. The flexible pipe section 51 can be a corrugated pipe structure.

[0017] Furthermore, the top surface of the water level sensor body 1 protrudes upward to form an anti-blocking protrusion 14 to prevent the air hole 13 from being blocked by the washbasin.

[0018] Furthermore, the inner surface of the rigid pipe section 52 is provided with a positioning rail 54, and the water inlet interface 11 and the water outlet interface 12 are provided with positioning grooves 15 that match the positioning rail 54. The positioning rail 54 is inserted into the positioning groove 15, which makes it easy to determine the insertion depth of the water inlet pipe 3 and the water outlet pipe 4 during installation, and can fix the water inlet pipe 3 and the water outlet pipe 4 to prevent them from falling off. In use, the interface at the drain end can also be provided with a positioning groove.

[0019] Furthermore, the water inlet 11 and the water outlet 12 are provided with a sealing groove 16 above the positioning groove 15. A sealing ring 6 is provided on the sealing groove 16 to prevent water leakage. In use, the interface at the drain end can also be provided with a sealing groove and a sealing ring.

[0020] Furthermore, the end of the rigid tube 52 expands outward to form a guide port 53, which is funnel-shaped to facilitate the insertion of the water inlet interface 11 and the water outlet interface 12 into the water inlet pipe 3 and the water outlet pipe 4.

[0021] Furthermore, the guide ports 53 of adjacent sub-pipe sections are connected by a cutting section 55. The diameter of the cutting section 55 is smaller than the diameter of the end of the guide port 53, which facilitates cutting from the cutting section. After cutting by the cutting section, the inlet pipe 3 and the outlet pipe 4 retain the guide port 53 and the positioning rail 54 at a suitable distance.

[0022] Furthermore, the top surface of the mounting component 2 on the side with the fixing groove 22 is higher than the top surface of the side with the mounting groove 21, so as to prevent the water level sensor body from hitting the washbasin when the mounting component 2 is installed under the faucet.

[0023] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A water level sensor for a drain with a built-in overflow function, characterized in that... The device includes an inlet pipe, an outlet pipe, a level gauge body, and mounting components. The level gauge body includes an inlet port, an outlet port, and an air vent. The top of the level gauge body extends outward to form a support portion. One end of the mounting component has a mounting groove, into which the level gauge body is placed and secured to the mounting component by the support portion. The other end of the mounting component has a fixing groove. The air vent is located at the top of the level gauge body. The inlet port and outlet port are located on both sides of the bottom of the level gauge body. The inlet pipe and outlet pipe are respectively inserted into the inlet port and outlet port. The inlet pipe and outlet pipe are composed of several sub-pipe segments. Each sub-pipe segment includes two rigid pipe sections and one flexible pipe section. The two rigid pipe sections are symmetrically arranged on both sides of the flexible pipe section.

2. A water level sensor for a drain with a built-in overflow function as described in claim 1, characterized in that... The top surface of the water level gauge body protrudes upward to form an anti-sealing protrusion.

3. A water level sensor for a drain with a built-in overflow function as described in claim 1, characterized in that... The inner surface of the rigid pipe section is provided with a positioning rail, and the water inlet and water outlet are provided with positioning grooves that match the positioning rail.

4. A water level sensor for a drain with a built-in overflow function as described in claim 3, characterized in that... The water inlet and water outlet are provided with sealing grooves above the positioning grooves, and sealing rings are provided on the sealing grooves.

5. A water level sensor for a drain with a built-in overflow function according to claim 1, characterized in that... The end of the rigid tube expands outward to form a guide opening.

6. A water level sensor for a drain with a built-in overflow function according to claim 5, characterized in that... The guide ports of adjacent sub-pipe sections are connected by a cutting section, the diameter of which is smaller than the diameter of the end of the guide port.

7. A water level sensor for a drain with a built-in overflow function according to claim 1, characterized in that... The top surface of the mounting component on the side with the fixing groove is higher than the top surface of the side with the mounting groove.

Citation Information

Patent Citations

  • Drainer with overflow function

    CN222847479U