Embedded concrete removable drain

CN224902337UActive Publication Date: 2026-10-27SHANDONG SURVEY & DESIGN INST OF WATER CONSERVANCY
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Patent Information

Application Number
CN202522563692.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-10-27
Estimated Expiration
2035-12-03

AI Technical Summary

Technical Problem

传统预埋排水管多为固定式结构,长期使用后易因杂物堆积造成堵塞,且清理维护困难

Benefits of technology

排水管主体与清理管采用可拆卸连接,便于快速拆装和维护,清理管前端的过滤网可拦截杂物,结合辅助滤爪的伞状展开结构,能主动清理管道内壁和过滤网附着的堵塞物,提升排水效率;

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224902337U_ABST
    Figure CN224902337U_ABST
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Abstract

The utility model relates to a drainage pipe technical field, concretely just is a kind of embedded concrete detachable drainage pipe. Including detachably arranged drainage pipe main part and cleaning pipe, the drainage pipe main part is embedded inside concrete wall, the front end of drainage pipe main part projects the outside of concrete wall, the front end of cleaning pipe is equipped with filter screen, the cleaning pipe is inserted the front end of the drainage pipe main part;Filter screen is connected with auxiliary pipe, the inside of auxiliary pipe is provided with auxiliary rod, the outer end of auxiliary rod is equipped with auxiliary filter claw, the auxiliary filter claw is housed in auxiliary pipe inside, when auxiliary rod is pushed to the inside of drainage pipe main part, auxiliary filter claw is unfolded outward and presents umbrella shape. It is convenient to quickly disassemble and maintain, and the filter screen of cleaning pipe front end can intercept sundries, combined with the umbrella shape unfolding structure of auxiliary filter claw, can actively clean the blockages attached to the inner wall of pipeline and filter screen, improve drainage efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically to an embedded concrete detachable drainage pipe. Background Technology

[0002] In construction projects, concrete walls often require pre-embedded drainage pipes to remove accumulated or leaking water. Traditional pre-embedded drainage pipes are mostly fixed structures, which are prone to blockage due to debris accumulation after long-term use, and are difficult to clean and maintain. While some existing drainage pipes are equipped with filters, these filters are easily clogged and difficult to clean, especially when blockages penetrate deep into the pipe, often requiring the entire pipe to be removed for cleaning. This is not only cumbersome but also affects the integrity of the concrete structure. Furthermore, conventional drainage pipes lack efficient auxiliary cleaning mechanisms and cannot actively unclog the interior of the pipes, leading to reduced drainage efficiency and increased maintenance costs. Utility Model Content

[0003] To solve the above problems, this utility model provides an embedded concrete detachable drainage pipe.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an embedded concrete detachable drainage pipe, including a detachable drainage pipe body and a cleaning pipe. The drainage pipe body is embedded inside the concrete wall, and the front end of the drainage pipe body extends out of the outside of the concrete wall. The front end of the cleaning pipe is equipped with a filter screen, and the cleaning pipe extends into the front end of the drainage pipe body. The filter screen is connected to an auxiliary pipe, and an auxiliary rod is provided inside the auxiliary pipe. An auxiliary filter claw is provided at the outer end of the auxiliary rod. The auxiliary filter claw is housed inside the auxiliary pipe. When the auxiliary rod is pushed into the main body of the drain pipe, the auxiliary filter claw unfolds outward in an umbrella shape.

[0005] As an optimization, the auxiliary filter claw includes a connector and several support rods. The support rods are connected to the connector via a spring shaft, and the several support rods are evenly arranged around the axis of the connector. When the support rod is retracted, it is arranged parallel to the auxiliary rod.

[0006] As an optimization, a limiting ring is provided on the outside of the cleaning pipe, and a connecting sleeve is slidably provided on the front side of the limiting ring, and the connecting sleeve is threadedly connected to the front end of the drain pipe body.

[0007] As an optimization, the filter screen is detachably connected to the front end of the cleaning tube.

[0008] As an optimization, the auxiliary pipe is coaxially arranged with the filter screen, the length of the auxiliary pipe is greater than the length of the cleaning pipe, and the outer end of the auxiliary pipe passes through the cleaning pipe and extends into the body of the drain pipe.

[0009] As an optimization, when the auxiliary filter claw is released from inside the auxiliary pipe, the auxiliary filter claw is located inside the main body of the drain pipe.

[0010] As an optimization, a flushing pipe is connected to the upper part of the main body of the drain pipe, and the outer end of the flushing pipe extends toward the front side of the concrete wall. The connection end between the flushing pipe and the main body of the drain pipe is inclined toward the front end of the main body of the drain pipe.

[0011] The beneficial effects of this plan are as follows: The main body of the drain pipe and the cleaning pipe are detachably connected, which facilitates quick disassembly and maintenance. The filter screen at the front end of the cleaning pipe can intercept debris. Combined with the umbrella-shaped unfolding structure of the auxiliary filter claw, it can actively clean the blockages attached to the inner wall of the pipe and the filter screen, thereby improving drainage efficiency. The auxiliary rod pushes the auxiliary filter claws to unfold, allowing them to reach deep into the pipe for unblocking. It is suitable for various blockage situations, is easy to operate and requires no additional tools. The added flushing pipe can backwash the inner wall of the pipe to further prevent blockage and extend service life. It is suitable for a variety of engineering scenarios. Attached Figure Description

[0012] Figure 1 This is an isometric view of the present invention in use.

[0013] Figure 2 This is a schematic diagram of the front view of this utility model.

[0014] Figure 3 This utility model Figure 2 A schematic diagram of the AA cross-section structure.

[0015] Figure 4 This is an isometric view of the present invention.

[0016] Figure 5 This utility model Figure 4 A magnified structural diagram of part B.

[0017] Figure 6 This utility model Figure 3 A magnified structural diagram of part C.

[0018] Figure 7 This utility model Figure 3 A magnified structural diagram of part D.

[0019] The components are: 1. Drainage pipe body; 2. Cleaning pipe; 3. Filter screen; 4. Auxiliary pipe; 5. Auxiliary rod; 6. Auxiliary filter claw; 7. Support rod; 8. Connecting sleeve; 9. Flushing pipe; 10. Concrete wall. Detailed Implementation

[0020] like Figures 1-7As shown, an embedded concrete detachable drainage pipe includes a detachable drainage pipe body 1 and a cleaning pipe 2. The drainage pipe body 1 is embedded inside a concrete wall 10, and the front end of the drainage pipe body 1 extends out of the concrete wall 10. The front end of the cleaning pipe 2 is equipped with a filter screen 3, and the cleaning pipe 2 extends into the front end of the drainage pipe body 1. The filter screen 3 is connected to an auxiliary pipe 4. An auxiliary rod 5 is provided inside the auxiliary pipe 4. An auxiliary filter claw 6 is provided at the outer end of the auxiliary rod 5. The auxiliary filter claw 6 is housed inside the auxiliary pipe 4. When the auxiliary rod 5 is pushed into the drain pipe body 1, the auxiliary filter claw 6 unfolds outward in an umbrella shape.

[0021] The detachable modular design enables rapid maintenance, and the umbrella-shaped unfolding structure of the auxiliary filter claw 6 utilizes the mechanical lever principle to expand the cleaning range. The main body 1 of the drain pipe is made of UPVC (rigid polyvinyl chloride) or HDPE (high-density polyethylene), which is corrosion-resistant and has strong pressure resistance; the cleaning pipe 2 and auxiliary pipe 4 are made of lightweight aluminum alloy, and the auxiliary rod 5 is made of stainless steel.

[0022] Water flows through the filter screen 3 for initial filtration. When blockage occurs, the auxiliary rod 5 is pushed to unfold the auxiliary filter claw 6, and the support rod 7 expands radially to remove the cleaning pipe 2, thus cleaning out the impurities inside the main body 1 of the drain pipe.

[0023] like Figure 7 As shown, the auxiliary filter claw 6 includes a connector and several support rods 7. The support rods 7 are connected to the connector via a spring shaft, and the several support rods 7 are evenly arranged around the axis of the connector. When the support rod 7 is retracted, the support rod 7 is arranged parallel to the auxiliary rod 5.

[0024] The spring shaft adopts a torsion spring structure, which automatically rebounds to the retracted state when there is no external force, ensuring that the auxiliary filter claw 6 remains compact when not in operation. The connector is made of 304 stainless steel, the support rod 7 is galvanized for rust prevention, and the spring shaft is made of 65Mn spring steel.

[0025] A rubber scraper can be installed at the end of the support rod 7 to avoid scratching the pipe wall; when unfolded, the maximum diameter can reach 90% of the inner diameter of the drain pipe, and there are no dead corners for cleaning.

[0026] like Figure 4 As shown, a limiting ring is provided on the outside of the cleaning pipe 2, and a connecting sleeve 8 is slidably provided on the front side of the limiting ring. The connecting sleeve 8 is threadedly connected to the front end of the drain pipe body 1.

[0027] The connecting sleeve 8 pushes and presses the limiting ring to seal the connection between the cleaning pipe 2 and the main body of the drain pipe 1.

[0028] like Figure 5As shown, the filter screen 3 is detachably connected to the front end of the cleaning tube 2.

[0029] The filter screen 3 is equipped with a connecting ring, and the connecting ring is equipped with several locking bolts. Tightening the locking bolts fixes the filter screen 3 to the cleaning pipe 2.

[0030] like Figure 4 and Figure 5 As shown, the auxiliary pipe 4 is coaxially arranged with the filter screen 3. The length of the auxiliary pipe 4 is greater than the length of the cleaning pipe 2. The outer end of the auxiliary pipe 4 passes through the cleaning pipe 2 and extends into the interior of the drain pipe body 1.

[0031] The coaxial design ensures uniform force distribution when the auxiliary rod 5 is advanced, and the extended section allows the auxiliary filter claw 6 to cover the middle and rear part of the drain pipe body 1. The inner wall of the auxiliary pipe 4 is coated with polytetrafluoroethylene to reduce friction during the movement of the auxiliary rod 5.

[0032] like Figure 4 and Figure 7 As shown, when the auxiliary filter claw 6 is released from inside the auxiliary pipe 4, the auxiliary filter claw 6 is located inside the drain pipe body 1.

[0033] When the auxiliary filter claw 6 is deployed, its outer end can contact or be adjacent to the interior of the auxiliary pipe 4. The outer end of the support rod 7 can be equipped with an arc-shaped scraper for cleaning the inner wall of the drain pipe body 1.

[0034] like Figure 1 and Figure 3 As shown, a flushing pipe 9 is connected to the upper part of the main body 1 of the drain pipe, and the outer end of the flushing pipe 9 extends toward the front side of the concrete wall 10. The connection end between the flushing pipe 9 and the drain pipe body 1 is inclined toward the front end of the drain pipe body 1.

[0035] The inclined design utilizes the inertia of water flow to create a vortex, enhancing the flushing effect; it can also achieve reverse flushing when connected to an external water source. The flushing pipe 9 and the main body of the drain pipe 1 are both made of UPVC, and rubber sealing rings are used at the joints to prevent leakage. The flushing pipe 9 has a diameter of DN25 and an inclination angle of 15°±2°.

[0036] When the device is used, the main body 1 of the drain pipe is pre-embedded in the concrete wall 10, ensuring that the front end extends out of the wall. The front end of the cleaning pipe 2 is fitted with a filter screen 3 and is fastened to the main body 1 of the drain pipe by the connecting sleeve 8. Water flows through filter screen 3 and then enters the main body of drain pipe 1 for discharge. Regularly check whether filter screen 3 is clogged, and disassemble and clean pipe 2 if necessary. If drainage is obstructed, push the auxiliary rod 5 forward to unfold the auxiliary filter claw 6 inside the drain pipe body 1, pull back the auxiliary rod 5 to retract the auxiliary filter claw 6, and at the same time remove the cleaning pipe 2 to clean the impurities inside the drain pipe body 1. Then, rinse the front end of the drain pipe body 1 through the flushing pipe 9.

[0037] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any embedded concrete detachable drainage pipe that conforms to the claims of this utility model, and any appropriate changes or modifications made to it by a person skilled in the art, shall fall within the patent protection scope of this utility model.

Claims

1. An embedded concrete detachable drainage pipe, characterized in that: It includes a detachable drain pipe body (1) and a cleaning pipe (2). The drain pipe body (1) is embedded inside a concrete wall (10), and the front end of the drain pipe body (1) extends out of the outside of the concrete wall (10). The front end of the cleaning pipe (2) is equipped with a filter screen (3), and the cleaning pipe (2) extends into the front end of the drain pipe body (1). The filter screen (3) is connected to an auxiliary pipe (4). An auxiliary rod (5) is provided inside the auxiliary pipe (4). An auxiliary filter claw (6) is provided at the outer end of the auxiliary rod (5). The auxiliary filter claw (6) is housed inside the auxiliary pipe (4). When the auxiliary rod (5) is pushed into the drain pipe body (1), the auxiliary filter claw (6) unfolds outward in an umbrella shape.

2. The embedded concrete detachable drainage pipe according to claim 1, characterized in that: The auxiliary filter claw (6) includes a connector and several support rods (7). The support rods (7) are connected to the connector via a spring shaft. The several support rods (7) are evenly arranged around the axis of the connector. When the support rod (7) is retracted, the support rod (7) is arranged parallel to the auxiliary rod (5).

3. The embedded concrete detachable drainage pipe according to claim 1, characterized in that: The cleaning pipe (2) is provided with a limiting ring on the outside, and a connecting sleeve (8) is slidably provided on the front side of the limiting ring. The connecting sleeve (8) is threadedly connected to the front end of the drain pipe body (1).

4. The embedded concrete detachable drainage pipe according to claim 1, characterized in that: The filter screen (3) is detachably connected to the front end of the cleaning tube (2).

5. The embedded concrete detachable drainage pipe according to claim 1, characterized in that: The auxiliary pipe (4) is coaxially arranged with the filter screen (3). The length of the auxiliary pipe (4) is greater than the length of the cleaning pipe (2). The outer end of the auxiliary pipe (4) passes through the cleaning pipe (2) and extends into the body of the drain pipe (1).

6. The embedded concrete detachable drainage pipe according to claim 1, characterized in that: When the auxiliary filter claw (6) is released from inside the auxiliary pipe (4), the auxiliary filter claw (6) is located inside the drain pipe body (1).

7. An embedded concrete detachable drainage pipe according to claim 1, characterized in that: The upper part of the drain pipe body (1) is connected to a flushing pipe (9), and the outer end of the flushing pipe (9) extends toward the front side of the concrete wall (10). The connection end of the flushing pipe (9) and the drain pipe body (1) is inclined toward the front end of the drain pipe body (1).