Anti-overflow drainer

By designing the drainage and overflow prevention structures of the overflow-proof drainer, the problems of cumbersome and space-consuming cylindrical cover sealing are solved, achieving simple sealing operation and effective water overflow prevention, thus improving the user experience.

CN224092628UActive Publication Date: 2026-04-07AOJIA SANITARY WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing drain cover-type sealing structure is cumbersome and takes up space in the sink, making it inconvenient to use and unable to effectively prevent water from overflowing.

Method used

An overflow-proof drain was designed, which adopts a drainage structure and an overflow-proof structure. It uses the cooperation of a sealing plug and a hook to achieve press-type drainage and water stop, and combines a magnetic overflow hole to automatically adjust the drainage volume to prevent water from overflowing.

Benefits of technology

It simplifies the sealing process, avoids the problem of losing the lid, takes up little space, and effectively prevents water from overflowing from the sink, making it more convenient to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-overflow drainer, which relates to the technical field of drainers and comprises a water pipe, a water leakage hole is arranged on the water pipe, a drainage structure is arranged in the water leakage hole and can actively drain water, an anti-overflow structure is arranged on the water pipe, and the anti-overflow structure is arranged on the water pipe. The anti-overflow structure can conduct passive drainage, the drainage structure comprises a protection pipe, the protection pipe is fixedly connected with the water passing pipe through a support, and the interior of the protection pipe is slidably connected with a sealing plug; the water drainage structure is arranged, the sealing plug in the water drainage structure can play a role in pressing type water drainage and pressing type water stopping, compared with traditional barrel cover type sealing, the sealing is simpler and more convenient, the condition that a barrel cover is lost is avoided, and the problem that water in the vegetable washing tank overflows due to excessive water can be solved through the arranged anti-overflow structure; and the anti-overflow structure is arranged in the water passing pipe, does not occupy the internal area of the vegetable washing tank, and is convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of drainer technology, specifically an overflow-proof drainer. Background Technology

[0002] A drain is connected to the bottom outlet of the sink or vegetable washing basin. The drain is used to drain the sink and also has a filtration function. Because various wastes and sewage accumulated in the sewer will produce odors after fermentation by bacteria, in order to reduce the backflow of odors from the sewer to the sink through the drain, a "U" or "S" shaped water seal structure is installed in the water pipe at the rear of the drain to prevent the backflow of odors.

[0003] In the prior art, a Chinese patent discloses a water seal structure for a drain and a drain (authorization announcement number CN209636916U). This patented technology can have a cover that can be opened or closed on the water pipe to expose or cover the water leakage mesh. The water tank can be drained and stored by opening and closing the cover. Since the cover is directly set on the water pipe, it can effectively avoid the inconvenience of water storage caused to users due to the loss of the cover.

[0004] However, the above structure requires the cap to be repeatedly closed and closed over the water pipe to achieve a seal or closure, which is cumbersome. Furthermore, the overflow hole is positioned high, which, while preventing overflow, takes up space inside the sink, making it inconvenient to use. Therefore, an overflow-proof drain is provided to solve the problems mentioned in the background. Utility Model Content

[0005] The purpose of this utility model is to provide an overflow-proof drain device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An overflow-proof drain includes a water pipe with a drain hole on its upper part. The drain hole has a drainage structure inside, which is capable of active drainage. An overflow-proof structure is provided on the upper part of the water pipe, which is capable of passive drainage.

[0008] As a further embodiment of this utility model: the drainage structure includes a protective pipe, which is fixedly connected to the water pipe via a bracket. A sealing plug is slidably connected inside the protective pipe, and a sealing ring is wound around the surface of the sealing plug. The sealing plug and the sealing ring are located inside the leakage hole.

[0009] As a further embodiment of this utility model: a connecting plate is fixedly connected to the lower side of the sealing plug, the connecting plate is located inside the protective tube, a sliding groove is provided on one side of the connecting plate, a hook is slidably connected inside the sliding groove, and the tail end of the hook is slidably connected to the bottom wall of the protective tube.

[0010] As a further embodiment of this utility model: the sliding groove includes a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove having different depths.

[0011] As a further embodiment of this utility model: sliding blocks are fixedly connected to both sides of the connecting plate, sliding rods are slidably connected inside the sliding blocks, the sliding rods are fixedly connected to the bottom wall of the protective pipe, and springs are sleeved on the sliding rods.

[0012] As a further embodiment of this utility model: the overflow prevention structure includes an overflow hole, a fixing block is fixedly connected to the inner wall of the overflow hole, a sealing plate is rotatably connected to both sides of the fixing block via a rotating shaft, a torsion spring is sleeved on the rotating shaft, and a magnetic block is fixedly connected to the inner wall of the overflow hole, the magnetic block and the sealing plate being mating components.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By incorporating a drainage structure, the sealing plug within the drainage structure can function as both a press-type water release and a press-type water stop, which is simpler than the traditional cylinder cap seal and avoids the possibility of the cylinder cap being lost.

[0015] 2. The addition of an anti-overflow structure prevents water from overflowing from the sink. This anti-overflow structure is located inside the water pipe and does not take up much space inside the sink, making it convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the protective tube structure in this utility model;

[0018] Figure 3 This is a schematic diagram of one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the second sliding groove structure in this utility model;

[0021] Figure 6This is a schematic diagram of the overflow hole structure in this utility model;

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 1. Water pipe; 101. Leakage hole; 2. Drainage structure; 201. Sealing ring; 202. Sealing plug; 203. Connecting plate; 204. Sliding rod; 205. Sliding block; 206. Spring; 207. Slide groove; 2071. First sliding groove; 2072. Second sliding groove; 208. Hook; 209. Protective pipe; 3. Overflow prevention structure; 301. Overflow hole; 302. Fixing block; 303. Rotating shaft; 304. Sealing plate; 305. Magnetic block. Detailed Implementation

[0024] Please see Figures 1-6 An overflow-proof drain device includes a water pipe 1, a drain hole 101 on the water pipe 1, a drainage structure 2 inside the drain hole 101, the drainage structure 2 being able to actively drain water, and an overflow-proof structure 3 on the water pipe 1, the overflow-proof structure 3 being able to passively drain water.

[0025] Among them, by setting up a drainage structure 2, the sealing plug 202 in the drainage structure 2 can play the role of pressing to release water and pressing to stop water, which is simpler than the traditional cylinder cover sealing and does not result in the loss of the cylinder cover; by setting up an anti-overflow structure 3, the problem of excessive water overflowing inside the vegetable washing sink can be avoided, and the anti-overflow structure 3 is set inside the water pipe 1, which will not occupy the internal area of ​​the vegetable washing sink and is convenient to use.

[0026] Preferably, sliding blocks 205 are fixedly connected to both sides of the connecting plate 203, and sliding rods 204 are slidably connected inside the sliding blocks 205. The sliding rods 204 are fixedly connected to the bottom wall of the protective tube 209, and springs 206 are sleeved on the sliding rods 204.

[0027] The spring 206 facilitates the reset of the sealing plug 202, and the cooperation between the connecting plate 203 and the hook 208 allows the sealing plug 202 to have two states (open or closed) after being pressed and released. The sliding rod 204 guides the sliding of the connecting plate 203, preventing the connecting plate 203 from shifting at an angle when it moves back and forth.

[0028] Preferably, the drainage structure 2 includes a protective pipe 209, which is fixedly connected to the water pipe 1 via a bracket. A sealing plug 202 is slidably connected inside the protective pipe 209, and a sealing ring 201 is wound around the surface of the sealing plug 202. The sealing plug 202 and the sealing ring 201 are located inside the water leakage hole 101. A connecting plate 203 is fixedly connected to the lower side of the sealing plug 202. The connecting plate 203 is located inside the protective pipe 209. A groove 207 is provided on one side of the connecting plate 203. A hook 208 is slidably connected inside the groove 207. The tail end of the hook 208 is slidably connected to the bottom wall of the protective pipe 209. The groove 207 includes a first sliding groove 2071 and a second sliding groove 2072, which have different depths.

[0029] When the sealing plug 202 is pressed, the connecting plate 203 moves downwards. As the connecting plate 203 moves downwards, the hook 208 moves inside the sliding groove 207. The sliding groove 207 is divided into a first sliding groove 2071 and a second sliding groove 2072. The depth of end a of the first sliding groove 2071 is greater than the depth of end d of the second sliding groove 2072, and the depth of end c of the second sliding groove 2072 is greater than the depth of end b of the first sliding groove 2071. When the connecting plate 203 moves downwards, the hook 208 cannot move into the second sliding groove 2072 because of the obstruction at end d of the second sliding groove 2072. Therefore, it can only move towards end b of the first sliding groove 2071. When the hook 208 is connected to end b of the first sliding groove 2071, the hook 208 has moved to its limit position and cannot move any further. At this time, the sealing plug 202 is released, and the connecting plate 203 moves upward under the action of the spring 206 via the sliding block 205. This causes the hook 208 to move downward inside the first sliding groove 2071, thus falling into end c of the second sliding groove 2072. At this time, the hook 208 is blocked by the upper side wall of the second sliding groove 2072 and will be stuck in end c of the second sliding groove 2072, unable to move further. At this time, the sealing plug 202 is in a sealed state for the water pipe 1. Figure 4 (As shown), this can prevent water from flowing out of the sink;

[0030] When it is necessary to drain the water from the sink, press the sealing plug 202 again. Guided by the wall of the second sliding groove 2072, the hook 208 can only move towards the d end of the second sliding groove 2072 (it will be blocked towards the b end of the first sliding groove 2071). Then release the sealing plug 202. Under the action of the spring 206, the sliding block 205 moves upward, thereby causing the hook 208 to engage at the a end of the first sliding groove 2071. At this time, the hook 208 is blocked by the upper wall of the first sliding groove 2071 and cannot move further. At this time, the sealing plug 202 is in the open state for the water pipe 1. Figure 3 As shown, the water inside the sink can be drained.

[0031] Preferably, the overflow prevention structure 3 includes an overflow hole 301, a fixing block 302 is fixedly connected to the inner wall of the overflow hole 301, a sealing plate 304 is rotatably connected to both sides of the fixing block 302 via a rotating shaft 303, a torsion spring is sleeved on the rotating shaft 303, and a magnetic block 305 is fixedly connected to the inner wall of the overflow hole 301. The magnetic block 305 and the sealing plate 304 are mating components.

[0032] When the water level in the sink is too high (about to overflow), the water will exert pressure on the overflow hole 301 on the water pipe 1. The water pressure will be applied to the sealing plate 304. When the water pressure can overcome the torsion of the torsion spring on the rotating shaft 303 and the magnetic force exerted on the sealing plate 304 by the magnetic block 305 (the sealing plate 304 is made of magnetic material), the sealing plate 304 will deflect at an angle inside the overflow hole 301, creating a gap at the connection between the sealing plate 304 and the magnetic block 305. This allows the water in the sink to flow out through the gap between the sealing plate 304 and the magnetic block 305, thereby draining the water from the sink through the overflow hole 301, reducing the amount of water in the sink and preventing water from overflowing.

[0033] Working principle: In use, the water pipe 1 is installed at the drain outlet on the bottom side of the sink, and the tail end of the water pipe 1 is connected to the drain pipe opening. When it is necessary to drain the water inside the sink, press the sealing plug 202 again. Guided by the wall of the second sliding groove 2072, the hook 208 can only move towards the d end of the second sliding groove 2072 (it will be blocked towards the b end of the first sliding groove 2071). Then release the sealing plug 202. Under the action of the spring 206, the sliding block 205 moves upward, thereby causing the hook 208 to engage at the a end of the first sliding groove 2071. At this time, the hook 208 is blocked by the upper wall of the first sliding groove 2071 and cannot move further. At this time, the sealing plug 202 is in the open state for the water pipe 1. Figure 3 As shown, water can flow out of the sink. When there is too much water in the sink (about to overflow), the water will exert pressure on the overflow hole 301 on the water pipe 1. The water pressure will be applied to the sealing plate 304. When the water pressure can overcome the torsion of the torsion spring on the rotating shaft 303 and the magnetic force exerted on the sealing plate 304 by the magnetic block 305 (the sealing plate 304 is made of magnetic material), the sealing plate 304 will deflect at an angle inside the overflow hole 301, creating a gap at the connection between the sealing plate 304 and the magnetic block 305. This allows the water in the sink to flow out through the gap between the sealing plate 304 and the magnetic block 305, thereby draining the water in the sink through the overflow hole 301, reducing the amount of water in the sink and preventing water from overflowing.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An overflow-proof drain assembly, characterized in that, It includes a water pipe (1), a water hole (101) is provided on the water pipe (1), a drainage structure (2) is provided inside the water hole (101), the drainage structure (2) can actively drain water, and an anti-overflow structure (3) is provided on the water pipe (1), the anti-overflow structure (3) can passively drain water. The drainage structure (2) includes a protective pipe (209), which is fixedly connected to the water pipe (1) by a bracket. A sealing plug (202) is slidably connected inside the protective pipe (209), and a sealing ring (201) is wound around the surface of the sealing plug (202). The sealing plug (202) and the sealing ring (201) are located inside the water leakage hole (101). A connecting plate (203) is fixedly connected to the lower side of the sealing plug (202). The connecting plate (203) is located inside the protective tube (209). A sliding groove (207) is provided on one side of the connecting plate (203). A hook (208) is slidably connected inside the sliding groove (207). The tail end of the hook (208) is slidably connected to the bottom wall of the protective tube (209). The slide groove (207) includes a first slide groove (2071) and a second slide groove (2072), the first slide groove (2071) and the second slide groove (2072) having different depths; Sliding blocks (205) are fixedly connected to both sides of the connecting plate (203). A sliding rod (204) is slidably connected inside the sliding block (205). The sliding rod (204) is fixedly connected to the bottom wall of the protective tube (209). A spring (206) is sleeved on the sliding rod (204).

2. The overflow-proof drain device according to claim 1, characterized in that, The overflow prevention structure (3) includes an overflow hole (301), a fixing block (302) is fixedly connected to the inner wall of the overflow hole (301), and a sealing plate (304) is rotatably connected to both sides of the fixing block (302) via a rotating shaft (303). A torsion spring is sleeved on the rotating shaft (303), and a magnetic block (305) is fixedly connected to the inner wall of the overflow hole (301). The magnetic block (305) and the sealing plate (304) are mating components.

Citation Information

Patent Citations

  • Drainer water seal structure and drainer

    CN209636916U