Dual-purpose drainage connector

By designing the diversion pipe and drain core structure of the dual-purpose drain connector, the problem of sewage backflow in the drain connector is solved, and the sewage on the ground and in the pipes is effectively discharged, avoiding sewage backflow and hair blockage.

CN224092660UActive Publication Date: 2026-04-07TAIZHOU HENGRI PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing floor drain connections are prone to sewage backflow during drainage, and cannot effectively drain sewage from the ground and pipes simultaneously.

Method used

A dual-purpose drain connector was designed, comprising a drain body, a drain cover, a pipe connector, and an installation pipe. The installation pipe is divided into two independent drainage zones by a diversion pipe, and combined with a sealing sleeve and a drain core, it prevents sewage backflow.

Benefits of technology

It enables the simultaneous discharge of sewage from the ground and pipes, preventing sewage backflow. It also features a simple structure, easy installation, and prevents hair from clogging the pipes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dual-purpose drainage joint, which belongs to the technical field of drainage systems, and adopts the technical scheme that the dual-purpose drainage joint comprises a floor drain body, a floor drain cover, a pipe joint and a mounting pipe, the floor drain body is provided with a sewage cavity, a placement groove and an assembly hole communicated with the sewage cavity, the lower end of the floor drain body is connected with a sewer pipe, and the floor drain cover is arranged in the placement groove; the lower end of the pipe joint penetrates through the mounting hole and is connected with the mounting pipe, the lower end of the mounting pipe penetrates through the assembly hole and extends into the sewer pipe, a through hole close to the bottom of the sewage cavity is formed in the outer wall of the mounting pipe, and the sewage cavity is communicated with the interior of the mounting pipe through the through hole; a flow dividing pipe is arranged in the mounting pipe and divides the interior of the mounting pipe into a first drainage area and a second drainage area. According to the floor drain, drainage is achieved while the ground and the blow-off pipe are considered, the first drainage area and the second drainage area do not interfere with each other, and sewage can be prevented from overflowing from the floor drain body.
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Description

Technical Field

[0001] This utility model belongs to the field of drainage system technology, and specifically relates to a dual-purpose drainage connector. Background Technology

[0002] In household drainage systems, floor drains often serve as the interface connecting drainage pipes to the indoor floor, allowing water on the floor to drain smoothly into the sewer pipes. Conventional floor drains can only drain water on the floor. If it is necessary to drain sewage directly into the floor drain to prevent sewage from polluting the floor as it flows through, the pipe needs to be connected to the floor drain via a special connector, allowing sewage from the pipes and water on the floor to drain from the same drain.

[0003] For example, Chinese patent CN203320299U discloses a connection structure between a washing machine floor drain connector and a drain pipe. This structure includes a floor drain connector and a drain pipe. The drain pipe is fastened to the floor drain connector, and the floor drain connector is connected to the floor drain. The connector's inlet is connected to the drain hole of the floor drain cover via a connecting pipe. This type of floor drain connector, once properly connected to the floor drain on the ground, provides a better overall connection and prevents sewage from spilling onto the ground.

[0004] The above technical solution has at least the following defects: Since the drain connector is directly connected to the drain pipe and the drain pipe has no anti-backflow device, sewage is prone to backflow from the drain cover when the drain pipe drains a large amount of water, causing the sewage in the drain pipe to pollute the ground. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a dual-purpose drainage connector. The technical problem to be solved by this utility model is: how to balance ground drainage and pipe drainage while preventing sewage backflow.

[0006] The above-mentioned technical objectives of this utility model can be achieved through the following technical solutions:

[0007] A dual-purpose drain connector includes a drain body, a drain cover, a pipe connector, and an installation pipe. The drain body has a sewage chamber, a placement groove, and an assembly hole connecting to the sewage chamber. The lower end of the drain body is connected to a drain pipe. The drain cover is disposed in the placement groove and has a water inlet and an installation hole. The water inlet allows surface water to enter the sewage chamber. The lower end of the pipe connector passes through the installation hole and connects to the installation pipe. The lower end of the installation pipe passes through the assembly hole and extends into the drain pipe. The outer wall of the installation pipe has a through hole near the bottom of the sewage chamber, which connects the sewage chamber to the interior of the installation pipe. A diversion pipe is provided inside the installation pipe, which divides the interior of the installation pipe into drainage zone one and drainage zone two.

[0008] In the above-mentioned dual-purpose drainage connector, at least two through holes are distributed circumferentially along the outer wall of the mounting pipe.

[0009] In the above-mentioned dual-purpose drain connector, a boss is provided inside the mounting pipe, the boss is located above the through hole, the upper end of the diversion pipe has a flange, and the boss limits the flange.

[0010] In the above-mentioned dual-purpose drainage connector, the lower end of the pipe connector mates with the boss to limit the flange.

[0011] In the above-mentioned dual-purpose drain connector, a flange is provided on the outside of the pipe connector, the flange abuts against the drain cover, and the upper end of the installation pipe cooperates with the flange to clamp the drain cover.

[0012] In the above-mentioned dual-purpose drainage connector, a sealing sleeve is provided between the installation pipe and the assembly hole.

[0013] In the above-mentioned dual-purpose drainage connector, a floor drain core is provided at the lower end of the installation pipe.

[0014] In the above-mentioned dual-purpose drain connector, the middle part of the drain cover is arched upwards, and the mounting hole is located in the middle part of the drain cover; the water inlet holes are distributed at intervals.

[0015] In the above-mentioned dual-purpose drainage connector, the edge of the drain cover is provided with several barrier posts.

[0016] In the above-mentioned dual-purpose drain connector, the pipe connector has at least one interface.

[0017] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0018] Water from the ground flows sequentially through the inlet, sewage chamber, and through-hole into drainage zone one. The drain pipe of the washing machine or washbasin connects to the pipe connector, allowing sewage from the drain pipe to flow into drainage zone two. This invention simultaneously drains water from the ground and the drain pipe. Drainage zones one and two form two independent flow channels at the through-hole, preventing interference during drainage. Even if the drainage flow in the drain pipe increases, sewage will not overflow from the through-hole into the sewage chamber or onto the ground, effectively preventing backflow from the drain body. Furthermore, the installation pipe and diversion pipe have a simple and stable connection method, and are easy to install and remove. In addition, the barrier post effectively prevents hair from entering the drain body, avoiding hair clogging the drain pipe. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of an embodiment;

[0020] Figure 2 for Figure 1A cross-sectional view;

[0021] Figure 3 This is a cross-sectional view of the drain body and drain cover after an explosion in the embodiment;

[0022] Figure 4 This is a partial cross-sectional schematic diagram of an embodiment;

[0023] Figure 5 This is a cross-sectional view of the mounting pipe in the embodiment;

[0024] Figure 6 This is a cross-sectional schematic diagram of the drain core in the embodiment;

[0025] Figure 7 This is a schematic diagram of the structure of the embodiment and its connection with the drain pipe (the arrow indicates the direction of water flow).

[0026] Attached diagram label: 1. Drain pipe;

[0027] 100. Floor drain body; 110. Sewage chamber; 120. Placement slot; 130. Assembly hole; 140. Extension pipe;

[0028] 200, drain cover; 210, water inlet; 220, mounting hole; 230, groove; 240, barrier post;

[0029] 300, pipe fitting; 310, flange; 320, interface;

[0030] 400, mounting tube; 410, through hole; 420, boss;

[0031] 500, Diversion pipe; 510, Drainage zone one; 520, Drainage zone two; 530, Flange;

[0032] 600, sealing sleeve;

[0033] 700, drain core; 710, core body; 720, flip cover; 730, reset component; 731, magnetic block. Detailed Implementation

[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0035] A dual-purpose drain connector, such as Figures 1-7As shown, the system includes a drain body 100, a drain cover 200, a pipe connector 300, and an installation pipe 400. The drain body 100 has a sewage chamber 110, a placement groove 120, and an assembly hole 130 connecting to the sewage chamber 110. The lower end of the drain body 100 has an extension pipe 140, through which the drain body 100 is connected to a drain pipe 1. The drain cover 200 is placed in the placement groove 120 and has a water inlet hole 210 and an installation hole 220. The water inlet hole 210 allows water from the floor to enter the sewage chamber. The lower end of the water chamber 110 and the pipe connector 300 passes through the mounting hole 220 and connects to the upper end of the mounting pipe 400. The lower end of the mounting pipe 400 passes through the assembly hole 130 and extends into the drain pipe 1. The outer wall of the mounting pipe 400 has a through hole 410 near the bottom of the sewage chamber 110, which connects the sewage chamber 110 to the interior of the mounting pipe 400. A diversion pipe 500 is installed inside the mounting pipe 400, which divides the interior of the mounting pipe 400 into drainage zone one 510 and drainage zone two 520. The sewage chamber 110 is connected to drainage zone one 510 through the through hole 410, and the pipe connector 300 is connected to drainage zone two 520. In other words, drainage zone one 510 is responsible for draining surface water, and drainage zone two 520 is responsible for draining sewage from the pipe connector 300.

[0036] like Figure 4 , Figure 5 As shown, at least two through holes 410 are distributed circumferentially along the outer wall of the mounting tube 400. In some embodiments, only one through hole 410 is provided and it is elongated.

[0037] The mounting tube 400 is provided with a boss 420, which is located above the through hole 410. The upper end of the diversion tube 500 has a flange 530, and the upper end face of the boss 420 is used to support the flange 530.

[0038] Furthermore, the flange 530 is located between the boss 420 and the pipe connector 300. The lower end of the pipe connector 300 engages with the boss 420 to limit the flange 530, thereby preventing abnormal vertical displacement of the diversion pipe 500 under external force or water flow. In at least one embodiment, the inner ring of the boss 420 is clearance-fitted with the outer wall of the diversion pipe 500, and the inner ring of the boss 420 can limit the diversion pipe 500, thereby preventing abnormal shaking of the diversion pipe 500 within the mounting pipe 400.

[0039] The lower end of the pipe connector 300 is threadedly connected to the upper end of the mounting pipe 400. A flange 310 is also provided on the outside of the pipe connector 300. The lower end face of the flange 310 abuts against the upper end of the drain cover 200, and the upper end of the mounting pipe 400 abuts against the lower end of the drain cover 200. That is, the upper end of the mounting pipe 400 and the flange 310 cooperate to clamp the drain cover 200. The drain cover 200, pipe connector 300, mounting pipe 400, and diversion pipe 500 can then be installed as a single unit inside the drain body 100. In some embodiments, the upper end of the drain cover 200 has a groove 230 for the flange 310 to be accommodated.

[0040] A sealing sleeve 600 is provided between the mounting tube 400 and the assembly hole 130 to seal the gap between the assembly hole 130 and the mounting tube 400.

[0041] like Figure 1 , Figure 2 , Figure 6 As shown, a drain core 700 is installed at the lower end of the installation pipe 400. The drain core 700 includes a core body 710, a flip cover 720, and a reset component 730. The core body 710 connects the installation pipe 400 to the drain pipe 1. One end of the flip cover 720 is rotatably connected to the lower end of the core body 710. The reset component 730 consists of two magnetic blocks 731. When drainage is not in progress, the magnetic attraction between the two magnetic blocks 731 will press the flip cover 720 tightly against the lower end of the core body 710, thereby sealing the lower end of the core body 710. At this time, the drain core 700 is in a closed state, thus isolating the drain pipe 1 from the interior of the installation pipe 400 and preventing odors and sewage in the drain pipe 1 from overflowing into the installation pipe 400. Figure 7 As shown, when the drain core 700 is opened, the flip cover 720 flips downwards against the attraction of the two magnetic blocks 731.

[0042] The drain cover 200 is arched upward in the middle, and the mounting hole 220 is located in the middle of the drain cover 200; there are several water inlet holes 210 distributed at intervals along the circumference of the drain cover 200, and several blocking posts 240 are distributed on the edge of the drain cover 200, and the blocking posts 240 are located around the water inlet holes 210. The blocking posts 240 are used to intercept hair.

[0043] The pipe fitting 300 has at least one interface 320 for connecting to a drain pipe, such as a drain pipe for draining water from a washing machine or washbasin.

[0044] The working principle of this utility model is as follows:

[0045] Water on the ground enters the drain core 700 sequentially through the inlet hole 210, the sewage chamber 110, the through hole 410, and the drainage area 510. The gravity and impact of the water will cause the flip cover 720 to open downwards. At this time, the drain core 700 is opened, and the installation pipe 400 is connected to the drain pipe 1. The water in the drain core 700 can then be discharged into the drain pipe 1. Hair mixed in with the water on the ground is intercepted by the blocking column 240.

[0046] The sewage pipes of washing machines, washbasins, etc. are connected to pipe connectors 300. The sewage in the sewage pipes enters the drain core 700 through pipe connectors 300 and drainage area 2 520 in sequence. After the drain core 700 is opened, the sewage can flow smoothly into the drain pipe 1. The falling sewage will not enter drainage area 1 510.

[0047] This drainage connector can simultaneously drain water from the ground and sewage pipes. Drainage zone 1 510 and drainage zone 2 520 form two independent flow channels at the through hole 410. The two flow channels will not interfere with each other during the drainage process. Even if the drainage flow in the sewage pipe increases, sewage will not overflow from the through hole 410 into the sewage chamber 110 or the ground, effectively preventing sewage from overflowing from the floor drain 100.

[0048] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A dual-purpose drainage connector, characterized in that: The system includes a drain body (100), a drain cover (200), a pipe connector (300), and an installation pipe (400). The drain body (100) has a sewage chamber (110), a placement groove (120), and an assembly hole (130) connecting to the sewage chamber (110). The lower end of the drain body (100) is connected to a drain pipe (1). The drain cover (200) is placed in the placement groove (120). The drain cover (200) has a water inlet (210) and an installation hole (220). The water inlet (210) allows surface water to enter the sewage chamber (110). The pipe connector (300)... The lower end passes through the mounting hole (220) and is connected to the mounting pipe (400). The lower end of the mounting pipe (400) passes through the assembly hole (130) and extends into the drain pipe (1). The outer wall of the mounting pipe (400) has a through hole (410) near the bottom of the sewage chamber (110). The through hole (410) connects the sewage chamber (110) with the interior of the mounting pipe (400). A diversion pipe (500) is provided inside the mounting pipe (400). The diversion pipe (500) divides the interior of the mounting pipe (400) into drainage area one (510) and drainage area two (520).

2. The dual-purpose drain connector according to claim 1, characterized in that: At least two through holes (410) are distributed circumferentially along the outer wall of the mounting tube (400).

3. The dual-purpose drain connector according to claim 1, characterized in that: The mounting tube (400) is provided with a boss (420) located above the through hole (410). The upper end of the diversion tube (500) has a flange (530), and the boss (420) limits the flange (530).

4. The dual-purpose drainage connector according to claim 3, characterized in that: The lower end of the pipe fitting (300) engages with the boss (420) to limit the flange (530).

5. The dual-purpose drain connector according to claim 1, characterized in that: The pipe connector (300) is provided with a flange (310) on the outside. The flange (310) abuts against the drain cover (200). The upper end of the mounting pipe (400) cooperates with the flange (310) to clamp the drain cover (200).

6. The dual-purpose drain connector according to claim 1, characterized in that: A sealing sleeve (600) is provided between the mounting tube (400) and the assembly hole (130).

7. The dual-purpose drain connector according to any one of claims 1-6, characterized in that: A floor drain core (700) is provided at the lower end of the installation pipe (400).

8. The dual-purpose drain connector according to any one of claims 1-6, characterized in that: The drain cover (200) is arched upward in the middle, and the mounting hole (220) is located in the middle of the drain cover (200); there are several water inlet holes (210) spaced apart.

9. The dual-purpose drain connector according to any one of claims 1-6, characterized in that: The edge of the drain cover (200) is provided with several barrier posts (240).

10. The dual-purpose drain connector according to any one of claims 1-6, characterized in that: The pipe fitting (300) has at least one interface (320).

Citation Information

Patent Citations

  • Connecting structure of floor drain joint and water drain pipe of washing machine

    CN203320299U