Self-locking quick-release drainage structure

By introducing a self-locking groove and a self-locking block between the drain cup and the drain pipe, the problem of inconvenient disassembly and installation of existing sink drain pipes is solved, enabling quick disassembly and assembly, enhancing sealing, and improving the stability of the drainage structure and the anti-backflow effect.

CN224161164UActive Publication Date: 2026-04-24TAIZHOU TENGYUN SANITARY WARE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU TENGYUN SANITARY WARE TECHNOLOGY CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing sink drain pipe has a complex water inlet structure, making disassembly and installation inconvenient.

Method used

A self-locking quick-release drainage structure is designed. By arranging self-locking grooves on the outer periphery of the drain cup and setting self-locking blocks on the inner wall of the drain pipe, quick installation and disassembly are achieved by utilizing the rotation angle and tilting structure of the self-locking blocks. Combined with a check valve, sealing ring and multi-functional adapter, the sealing performance and stability are improved.

Benefits of technology

It enables quick assembly and disassembly of the drain cup and drain pipe, enhances the self-locking effect, prevents detachment and structural instability, improves installation and disassembly efficiency, and enhances the sealing and backflow prevention effect during drainage.

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Abstract

The utility model provides a self-locking quick release drainage structure which comprises a sewer pipe and a sewer cup connected to a water inlet of the sewer pipe, a plurality of self-locking grooves are formed in the periphery of the sewer cup at intervals, and the sides, close to the sewer pipe, of the self-locking grooves are arranged in an inclined mode. A plurality of self-locking blocks matched with the self-locking grooves are arranged on the inner wall of the sewer pipe in the circumferential direction, so that when the sewer cup is connected with the sewer pipe, the self-locking blocks are clamped in the self-locking grooves; the self-locking effect of the sewer pipe fitting is improved, and the sewer pipe fitting can be quickly disassembled or assembled.
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Description

Technical Field

[0001] This utility model relates to the field of drainage equipment, and in particular to a self-locking quick-release drainage structure. Background Technology

[0002] Kitchen and bathroom sinks typically have a drain pipe at the bottom, which connects to the sink to direct wastewater into the sewer system. Currently, the structure and installation of the drain pipe's inlet are quite complex, making the disassembly and installation of various accessories at the inlet inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a self-locking quick-release drainage structure that enhances the self-locking effect of drainage pipe fittings and allows for rapid disassembly or installation.

[0004] To solve the above-mentioned technical problems, this utility model provides a self-locking quick-release drainage structure, including a drain pipe and a drain cup connected to the inlet of the drain pipe. The drain cup is provided with a number of self-locking grooves at intervals on its outer periphery. The self-locking grooves are inclined on the side near the drain pipe. The inner wall of the drain pipe is provided with a number of self-locking blocks that match the self-locking grooves along the circumferential direction, so that when the drain cup is connected to the drain pipe, the self-locking blocks are engaged in the self-locking grooves.

[0005] Furthermore, a check valve is installed at the drain outlet of the drain pipe, and a first sealing ring is installed between the outer periphery of the check valve and the drain pipe.

[0006] Furthermore, one end of the self-locking groove has an opening, and the opening is vertically arranged; the other end of the self-locking groove has an extension groove, and the extension groove is horizontally arranged.

[0007] Furthermore, a foam pad and a second sealing ring are provided at the edge of the lower cup and at the inlet of the lower pipe.

[0008] Furthermore, a filter screen is provided at the end of the water cup away from the drain pipe, and a drain cover is provided on the filter screen.

[0009] Furthermore, the rotation angle of the self-locking block along the self-locking groove is 50°-70°.

[0010] Furthermore, a branch is provided on the side of the drain pipe, and a third sealing ring is fitted around the outer periphery of the branch.

[0011] Furthermore, a multi-functional adapter is connected at the branch point.

[0012] The beneficial effects of this utility model are as follows: When connecting the drain cup to the drain pipe, the self-locking block is fastened into the self-locking groove, and the self-locking block is rotated and locked along the self-locking groove, which allows for quick installation. Since the side of the self-locking groove closest to the drain pipe is inclined, the self-locking block can be continuously guided by the inclined structure when the drain cup is used for drainage, so as to ensure that the self-locking block is self-locked in the self-locking groove, preventing the drain cup from falling off on its own or the structure from becoming unstable. Moreover, since the self-locking block can be disassembled from the self-locking groove simply by reversing, the drain cup can be quickly disassembled, so as to achieve the effect of quick disassembly and assembly between the drain cup and the drain pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a utility model Figure 2 Cross-sectional view along line AA.

[0016] Figure 4 This is an exploded view of this utility model.

[0017] Reference numerals: 1. Drain pipe; 2. Drain cup; 3. Self-locking groove; 4. Self-locking block; 5. Check valve; 6. First sealing ring; 7. Opening; 8. Extension groove; 9. Foam pad; 10. Second sealing ring; 11. Filter screen; 12. Drain cover; 13. Branch; 14. Third sealing ring; 15. Multi-functional adapter. Detailed Implementation

[0018] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0019] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0020] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0021] like Figures 1-4 The present invention provides a self-locking quick-release drainage structure, including a drain pipe 1 and a drain cup 2 connected to the inlet of the drain pipe 1. The drain cup 2 is provided with a plurality of self-locking grooves 3 at intervals on its outer periphery. The self-locking grooves 3 are inclined on the side near the drain pipe 1. The inner wall of the drain pipe 1 is provided with a plurality of self-locking blocks 4 that match the self-locking grooves 3, so that when the drain cup 2 is connected to the drain pipe 1, the self-locking blocks 4 are engaged in the self-locking grooves 3.

[0022] When connecting the drain cup to the drain pipe, snap the self-locking block into the self-locking groove and rotate it along the groove to lock it in place. This allows for quick installation. Because the side of the self-locking groove closest to the drain pipe is inclined, the inclined structure continuously guides the self-locking block during drainage, ensuring that the self-locking block is locked in place and preventing the drain cup from detaching on its own or becoming unstable. Furthermore, since the self-locking block can be easily disassembled by simply reversing its direction, the drain cup can be quickly removed, achieving a rapid connection and disconnection between the drain cup and the drain pipe.

[0023] In one embodiment of this solution, the rotation angle of the self-locking block 4 along the self-locking groove 3 is 50°-70°, and the specific angle can be selected according to the installation thickness of the water tank.

[0024] Preferably, a check valve 5 is provided at the drain outlet of the drain pipe 1, and a first sealing ring 6 is provided between the outer periphery of the check valve 5 and the drain pipe 1.

[0025] Specifically, the check valve is used to block backflow and seal off odors in the rear end of the drain pipe, thereby improving the treatment effect of drainage and odor backflow. At the same time, the outer edge of the check valve can be sealed by the first sealing ring to prevent water flow and odors from bypassing the check valve and causing backflow problems.

[0026] The first sealing ring is made of rubber.

[0027] Preferably, one end of the self-locking groove 3 has an opening 7, and the opening 7 is vertically arranged; the other end of the self-locking groove 3 has an extension groove 8, and the extension groove 8 is horizontally arranged.

[0028] Specifically, after the self-locking block enters the self-locking groove from the opening position, it engages under the guidance of the inclined position of the self-locking groove. At the same time, the self-locking block enters the extension groove during the rotation engagement process. Since the extension groove is horizontally set, when the drain cup is subjected to force during the drainage process, the horizontal extension groove provides horizontal support for the self-locking block, ensuring the relative position stability between the drain cup and the drain pipe.

[0029] Preferably, a foam pad 9 and a second sealing ring 10 are provided at the edge of the lower cup 2 and at the inlet of the lower pipe 1.

[0030] Specifically, the second sealing ring and foam pad are used to seal the edge connection between the drain cup and the drain pipe, thereby improving the stability of drainage at the drain cup.

[0031] The second sealing ring can be made of rubber.

[0032] Preferably, a filter screen 11 is provided at the end of the drain cup 2 away from the drain pipe 1, and a drain cover plate 12 is provided on the filter screen 11.

[0033] Specifically, the drain water from the cup is filtered through a filter screen, which collects impurities for subsequent treatment and prevents blockage in the drain pipe. At the same time, the filter screen is covered by a drain cover, which blocks the drain pipe when it is not in use, preventing problems such as backflow of odors.

[0034] Preferably, a branch 13 is provided on the side of the drain pipe 1, and a third sealing ring 14 is fitted around the outer periphery of the branch 13.

[0035] In a preferred embodiment of this solution, a multi-functional adapter 15 is connected to the branch 13.

[0036] Specifically, the multi-functional adapter is connected to the branch line, and the locking nut in the multi-functional adapter is sealed to prevent leakage through the third sealing ring. At the same time, the multi-functional adapter can be used to connect various pipe fittings such as overflow pipes and drain pipes.

[0037] The third sealing ring can be a flat gasket, and the multi-functional adapter can be a rotary joint so that the adapter can rotate arbitrarily within 180°.

[0038] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A self-locking, quick-release drainage structure, characterized in that: Includes a drain pipe (1) and a drain cup (2) connected to the inlet of the drain pipe (1). The drain cup (2) is provided with several self-locking grooves (3) at intervals on its outer periphery. The self-locking grooves (3) are inclined on the side near the drain pipe (1). The inner wall of the drain pipe (1) is provided with several self-locking blocks (4) that match the self-locking grooves (3) in the circumferential direction, so that when the drain cup (2) is connected to the drain pipe (1), the self-locking blocks (4) are engaged in the self-locking grooves (3).

2. The self-lockable quick release drainage structure according to claim 1, wherein: A check valve (5) is provided at the drain outlet of the drain pipe (1), and a first sealing ring (6) is provided between the outer periphery of the check valve (5) and the drain pipe (1).

3. The self-locking quick-release drainage structure according to claim 1, characterized in that: One end of the self-locking groove (3) has an opening (7) and the opening (7) is vertically arranged. The other end of the self-locking groove (3) has an extension groove (8) and the extension groove (8) is horizontally arranged.

4. The self-locking quick-release drainage structure according to claim 1, characterized in that: A foam pad (9) and a second sealing ring (10) are provided at the edge of the water cup (2) and the water inlet of the water pipe (1).

5. The self-locking quick-release drainage structure according to claim 1, characterized in that: The end of the water cup (2) away from the drain pipe (1) is provided with a filter screen (11), and a drain cover plate (12) is provided on the filter screen (11).

6. The self-locking quick-release drainage structure according to claim 1, characterized in that: The self-locking block (4) rotates at an angle of 50°-70° along the self-locking groove (3).

7. The self-locking quick-release drainage structure according to claim 1, characterized in that: A branch (13) is provided on the side of the drain pipe (1), and a third sealing ring (14) is provided on the outer periphery of the branch (13).

8. The self-locking quick-release drainage structure according to claim 7, characterized in that: A multi-functional adapter (15) is connected at the branch (13).