Filtering and deslagging device for building water supply and drainage pipeline

By using first and second mesh screens in building water supply and drainage pipes to filter and collect impurities, the problem of blockage in water supply and drainage joints is solved, and smooth water flow and system integrity are achieved.

CN223930828UActive Publication Date: 2026-02-24CITIC GENERAL INST OF ARCHITECTURAL DESIGN & RES
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Patent Information

Application Number
CN202520404777.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-24
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Impurities can easily accumulate at the joints of existing building water supply and drainage pipes, leading to blockages.

Method used

Design a filtration and slag removal device including a first screen and a second screen. The first screen filters out large impurities, and the water flows into the diversion pipe and is filtered by the second screen. The impurities are left in the discharge cylinder, reducing the accumulation of impurities in the pipe.

Benefits of technology

It effectively reduces blockages in water supply and drainage joints, maintains smooth water flow, and improves the system's sealing and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of building water supply and drainage, aims to solve the problem of how to reduce blockage of a water supply and drainage joint, and provides a filtering and deslagging device for a building water supply and drainage pipeline. The filtering and deslagging device for the building water supply and drainage pipeline comprises a pipeline body, a first filtering piece and a second filtering piece. The pipeline body comprises a water inlet pipe and a drainage elbow. The water inlet pipe comprises a water inlet end and a water outlet end. The first filtering piece comprises a first mesh screen which is arranged at the water inlet end of the water inlet pipe. The second filtering part comprises a drainage pipe, a second mesh screen and a sewage discharge cylinder, the sewage discharge cylinder is arranged at the water outlet end of the water inlet pipe, the drainage pipe is arranged in a pipeline of the water inlet pipe, one end of the drainage pipe is communicated with the water inlet pipe, the other end of the drainage pipe is communicated with the sewage discharge cylinder, and the second mesh screen is arranged between the sewage discharge cylinder and the drainage bent pipe; the drainage pipe is used for guiding water flow of the water inlet pipe into the sewage discharging barrel, and the water flow is filtered through the second mesh screen and then discharged from the drainage elbow, so that impurities accumulated in the drainage elbow of the pipeline body are reduced, and the effect of reducing blockage of the water supply and drainage connector is achieved.
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Description

Technical Field

[0001] This application relates to the field of building water supply and drainage, and more specifically, to a filtration and slag removal device for building water supply and drainage pipelines. Background Technology

[0002] Water supply and drainage pipes are an indispensable part of building structures. To ensure smooth water flow and system integrity, pipes of different diameters or materials need to be connected. For example, when drainage pipes pass through floors, firewalls, or pipe shafts, joints are needed to ensure safety and sealing. Therefore, water supply and drainage joints are required.

[0003] In existing technologies, impurities can accumulate at the connection points of water supply and drainage joints during use, causing blockages. How to solve this technical problem is a question that those skilled in the art need to consider. Utility Model Content

[0004] This application provides a filtration and slag removal device for building water supply and drainage pipes to address the problem of reducing blockage at water supply and drainage joints.

[0005] This application provides a filtration and slag removal device for building water supply and drainage pipes, including a pipe body, a first filter element, and a second filter element. The pipe body includes an inlet pipe and a drain bend. The inlet pipe includes an inlet end and an outlet end, with the outlet end extending vertically. The drain bend is located at the outlet end and connected to the side wall of the outlet end. The first filter element includes a first screen, which is located at the inlet end of the inlet pipe. The second filter element includes a guide pipe, a second screen, and a drain cylinder. The drain cylinder is located at the outlet end of the inlet pipe. The guide pipe is located inside the inlet pipe, with one end connected to the inlet pipe and the other end connected to the drain cylinder. The second screen is located between the drain cylinder and the drain bend. The guide pipe is used to introduce water from the inlet pipe into the drain cylinder, and the water is filtered by the second screen before being discharged from the drain bend.

[0006] Compared to existing technologies, the filtration and slag removal device for building water supply and drainage pipes provided in this embodiment filters out large impurities through a first screen, leaving the large impurities behind. Then, the water flow is introduced into the drain pipe through a diversion pipe. After entering the drain pipe, the water flows through a second screen and overflows into the drain bend. Impurities remain in the drain pipe, thereby reducing the accumulation of impurities in the drain bend of the main pipe body and achieving the effect of reducing blockage of water supply and drainage joints.

[0007] In one possible implementation, the drain cylinder has an open receiving cavity, the outlet end of the inlet pipe is connected to the receiving cavity through the opening, the second screen is disposed at the opening of the receiving cavity, and the inner wall of the receiving cavity is threadedly connected to the outlet end of the inlet pipe.

[0008] In one possible implementation, the inlet end of the water inlet pipe is provided with a notch, and the first screen is inserted into the water inlet pipe through the notch to filter the water flow.

[0009] In one possible implementation, the first filter element further includes a sealing ring disposed at the notch, the sealing ring being used to seal the notch.

[0010] In one possible implementation, a pull ring is provided around the periphery of the first screen, the pull ring being used to pull the first screen to separate the first screen from the water inlet pipe.

[0011] In one possible implementation, the notch extends in an inclined direction, and the first screen is inclinedly disposed inside the water inlet pipe.

[0012] In one possible implementation, the drain pipe is funnel-shaped, with one end of the drain pipe fitting against the inner wall of the inlet pipe and the diameter of the other end gradually decreasing toward the drain cylinder. The drain pipe passes through the second screen and is connected to the drain cylinder.

[0013] In one possible implementation, the mesh diameter of the first screen is larger than that of the second screen. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of a filtration and slag removal device for building water supply and drainage pipelines according to an embodiment of this application;

[0016] Figure 2 for Figure 1 A schematic diagram of a filtration and slag removal device used in building water supply and drainage pipelines;

[0017] Figure 3 for Figure 1 A partial schematic diagram of a filtration and slag removal device used in building water supply and drainage pipelines;

[0018] Figure 4 for Figure 3 An enlarged view of area A of the filtration and slag removal device used for building water supply and drainage pipelines.

[0019] Explanation of key component symbols:

[0020] 1. Filtering and slag removal device for building water supply and drainage pipelines; 11. Pipe body; 111. Inlet pipe; 112. Inlet end; 113. Outlet end; 114. Drainage bend; 12. First filter element; 121. First screen; 122. Sealing ring; 123. Pull ring; 13. Second filter element; 131. Drainage pipe; 132. Second screen; 133. Sewage discharge cylinder; 134. Receiving cavity; 14. Valve. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0022] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Example

[0024] Please see Figures 1 to 4 As shown, this embodiment provides a filtration and slag removal device 1 for building water supply and drainage pipes, including a pipe body 11, a valve 14, a first filter element 12, and a second filter element 13. The pipe body 11 includes an inlet pipe 111 and a drain bend 114. The inlet pipe 111 includes an inlet end 112 and an outlet end 113, with the outlet end 113 extending vertically. The drain bend 114 is located at the outlet end 113 and connected to the side wall of the outlet end 113. The valve 14 is located at the inlet end 112 of the inlet pipe 111 and is used to open or close the inlet pipe 111. The first filter element 12 includes a first screen 121, which is located at the inlet end 112 of the inlet pipe 111. The second filter element 13 includes a diversion pipe 131, a second screen 132, and a drain cylinder 133. The drain cylinder 133 is located at the outlet end 113 of the inlet pipe 111. The diversion pipe 131 is located inside the inlet pipe 111. One end of the diversion pipe 131 is connected to the inlet pipe 111, and the other end is connected to the drain cylinder 133. The second screen 132 is located between the drain cylinder 133 and the drain bend 114. The diversion pipe 131 is used to introduce the water flow from the inlet pipe 111 into the drain cylinder 133, and the water flow is filtered by the second screen 132 and discharged from the drain bend 114.

[0025] The filtration and slag removal device 1 for building water supply and drainage pipes provided in this embodiment filters out large impurities through the first screen 121. The large impurities remain in the first screen 121. Then, the water flow is introduced into the drain cylinder 133 through the diversion pipe 131. After entering the drain cylinder 133, the water flow is filtered by the second screen 132 and overflows into the drain bend 114. The impurities remain in the drain cylinder 133, thereby reducing the accumulation of impurities in the drain bend 114 of the pipe body 11 and reducing the blockage of the water supply and drainage joints.

[0026] In this embodiment, valve 14 is located above the first screen 121, and valve 14 is opened to allow water to flow into the inlet pipe 111.

[0027] The first screen 121 is used for primary screening, filtering out impurities with larger particle diameters, such as pebbles, fruit pits, and vegetable leaves. The second screen 132 is used for fine screening, filtering out impurities with smaller particle diameters, such as debris and residue. The filtration and slag removal device 1 used in building water supply and drainage pipes filters out impurities through the first screen 121 and the second screen 132, reducing the accumulation of impurities in the pipes and thus reducing blockages in water supply and drainage joints.

[0028] In one possible implementation, the drain cylinder 133 has an open receiving cavity 134, the outlet end 113 of the inlet pipe 111 is connected to the receiving cavity 134 through the opening, the second screen 132 is disposed at the opening of the receiving cavity 134, and the inner wall of the receiving cavity 134 is threadedly connected to the outlet end 113 of the inlet pipe 111.

[0029] In this embodiment, the drain pipe 133 is located at the bottom of the water inlet pipe 111. The height of the drain pipe 133 is lower than that of the water inlet pipe 111 and the drain bend 114. This facilitates the flow of water into the receiving cavity 134 and after being filtered by the second screen 132, it is discharged into the drain bend 114, thereby reducing the accumulation of impurities in the pipe and reducing the blockage of the water supply and drainage joints.

[0030] In one possible implementation, the inlet end 112 of the inlet pipe 111 is provided with a notch, and the first screen 121 is inserted into the inlet pipe 111 through the notch to filter the water flow.

[0031] In this embodiment, the water inlet end 112 of the water inlet pipe 111 has a notch on its circumference, and the notch is connected to the interior of the water inlet pipe 111. The first screen 121 is inserted into the water inlet pipe 111 through the notch to filter the water flow.

[0032] When it is necessary to clean the impurities from the first screen 121, the filtration and slag removal device 1 for building water supply and drainage pipes closes the valve 14, rotates the drain cylinder 133 to separate it from the outlet end 113 of the inlet pipe 111, then removes the drain pipe 131 and the second screen 132 from the outlet end 113 of the inlet pipe 111, and then removes the first screen 121 through the notch, thereby allowing the impurities remaining in the first screen 121 to be discharged from the inlet pipe 111. Simultaneously, after the drain cylinder 133 is separated from the outlet end 113 of the inlet pipe 111, the impurities inside the drain cylinder 133 can be cleaned.

[0033] In one possible implementation, the first filter element 12 further includes a sealing ring 122 disposed at the notch, the sealing ring 122 being used to seal the notch.

[0034] In this embodiment, a sealing ring 122 is provided around the periphery of the opening. The sealing ring 122 is in contact with the surface of the first screen 121 to improve the sealing performance of the opening and reduce the flow of water out of the inlet pipe 111.

[0035] In one possible implementation, a pull ring 123 is provided around the periphery of the first screen 121, the pull ring 123 being used to pull the first screen 121 to separate the first screen 121 from the water inlet pipe 111.

[0036] In this embodiment, large particles of impurities remain above the first screen 121, and the first screen 121 is pulled open by the pull ring 123 to facilitate the cleaning of impurities.

[0037] In one possible implementation, the notch extends along an inclined direction, and the first screen 121 is inclinedly disposed inside the water inlet pipe 111.

[0038] In this embodiment, the first screen 121 is inclined and the pull ring 123 is located at a higher position of the first screen 121. When the pull ring 123 pulls the first screen 121, it helps impurities fall off the first screen 121, so as to facilitate the cleaning of impurities.

[0039] In one possible implementation, the drainage pipe 131 is funnel-shaped, with one end of the drainage pipe 131 fitting against the inner wall of the water inlet pipe 111 and the diameter of the other end gradually decreasing toward the sewage discharge cylinder 133. The drainage pipe 131 passes through the second screen 132 and is connected to the sewage discharge cylinder 133.

[0040] In this embodiment, the second screen 132 extends from the circumferential surface of the drain pipe 131 toward the inner wall of the drain cylinder 133. The drain pipe 131 passes through the second screen 132 and communicates with the drain cylinder 133, so that the water first enters the drain cylinder 133 and then flows out from the second screen 132 to the drain bend 114.

[0041] In one possible implementation, the mesh diameter of the first screen 121 is larger than the mesh diameter of the second screen 132.

[0042] In this embodiment, the first screen 121 has a larger mesh diameter, which filters out impurities with larger particle diameters. The second screen 132 has a smaller mesh diameter, which filters out impurities with smaller particle diameters, thereby reducing the accumulation of impurities in the pipe and reducing blockage of water supply and drainage joints.

[0043] In summary, the filtration and slag removal device 1 for building water supply and drainage pipes provided in this embodiment filters out large impurities through the first screen 121, leaving the large impurities in the first screen 121. Then, the water flow is introduced into the drain cylinder 133 through the diversion pipe 131. After entering the drain cylinder 133, the water flow is filtered by the second screen 132 and overflows into the drain bend 114. The impurities remain in the drain cylinder 133, thereby reducing the accumulation of impurities in the drain bend 114 of the pipe body 11 and reducing the blockage of the water supply and drainage joints.

[0044] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A filtration and slag removal device for building water supply and drainage pipes, comprising a pipe body, the pipe body including an inlet pipe and a drain bend, the inlet pipe including an inlet end and an outlet end, the outlet end extending vertically, the drain bend being disposed at the outlet end, the drain bend being connected to the side wall of the outlet end, characterized in that, The filtration and slag removal device for building water supply and drainage pipelines also includes: The first filter element includes a first screen, which is disposed at the inlet end of the water inlet pipe; The second filter element includes a diversion pipe, a second screen, and a drain cylinder. The drain cylinder is located at the outlet end of the inlet pipe. The diversion pipe is located inside the inlet pipe, with one end connected to the inlet pipe and the other end connected to the drain cylinder. The second screen is located between the drain cylinder and the drain bend. The diversion pipe is used to introduce water from the inlet pipe into the drain cylinder, and the water is filtered by the second screen before being discharged from the drain bend.

2. The filtration and slag removal device for building water supply and drainage pipelines according to claim 1, characterized in that: The sewage discharge cylinder has an open receiving cavity, the outlet end of the water inlet pipe is connected to the receiving cavity through the opening, the second screen is disposed at the opening of the receiving cavity, and the inner wall of the receiving cavity is threadedly connected to the outlet end of the water inlet pipe.

3. The filtration and slag removal device for building water supply and drainage pipelines according to claim 1, characterized in that: The inlet end of the water inlet pipe is provided with a notch, and the first screen is inserted into the water inlet pipe through the notch to filter the water flow.

4. The filtration and slag removal device for building water supply and drainage pipelines according to claim 3, characterized in that: The first filter element further includes a sealing ring disposed at the notch, the sealing ring being used to seal the notch.

5. The filtration and slag removal device for building water supply and drainage pipelines according to claim 3, characterized in that: The first screen is provided with a pull ring on its periphery, which is used to pull the first screen to separate the first screen from the water inlet pipe.

6. The filtration and slag removal device for building water supply and drainage pipelines according to claim 3, characterized in that: The opening extends along an inclined direction, and the first screen is inclinedly disposed inside the water inlet pipe.

7. The filtration and slag removal device for building water supply and drainage pipelines according to claim 1, characterized in that: The drainage pipe is funnel-shaped, with one end fitting against the inner wall of the inlet pipe and the diameter of the other end gradually decreasing towards the drain cylinder. The drainage pipe passes through the second screen and is connected to the drain cylinder.

8. The filtration and slag removal device for building water supply and drainage pipelines according to claim 1, characterized in that: The mesh diameter of the first screen is larger than that of the second screen.