Mechanical water supply and drainage pipeline anti-blocking device
By installing a filter device in the water supply and drainage pipelines and utilizing a combination design of a pull-out rod and a locking pin, the problem of inconvenient filter replacement in the existing technology is solved, enabling rapid replacement and cleaning of the filter and ensuring the normal operation of the pipeline.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI JINGDA ENVIRONMENTAL PROTECTION ENG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing pipe anti-clogging devices require complete disassembly when replacing or changing the filter screen. In existing technologies, the filter screen is located on the outside of the baffle, which makes replacement inconvenient.
Design a mechanical anti-clogging device for water supply and drainage pipes. The device is equipped with a filter screen in the filter device, and the filter screen can be quickly replaced and cleaned by the combination of a pull rod, a locking column and a handle, so as to avoid water outage operation.
It enables quick replacement or cleaning of the filter screen without affecting the water flow, preventing pipe blockage and ensuring normal pipe operation.
Smart Images

Figure CN224148852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline anti-clogging, specifically a mechanical anti-clogging device for water supply and drainage pipelines. Background Technology
[0002] Existing anti-clogging devices for pipes, such as the utility model application with application number 202420505699.6, disclose an anti-clogging device for drainage pipes, including an outlet pipe and an inlet pipe. The inlet pipe is horizontally connected to one side of the outlet pipe. A filter screen is provided at the top of the outlet pipe, and a cleaning plate is provided inside the outlet pipe below the filter screen. A top rod supporting the cleaning plate is vertically provided in the middle of the outlet pipe. A waste cylinder is detachably provided at the bottom of the outlet pipe, and a movable disc is provided in the middle of the waste cylinder to press against and support the bottom of the top rod. A cone is provided inside the outlet pipe below the inlet pipe. This device can ensure that the pipe is in a normal drainage state when cleaning impurities without stopping the water supply for cleaning.
[0003] However, the filter screen is located on the outside of the baffle, so the whole thing needs to be removed when the filter screen needs to be replaced, which is very inconvenient. Utility Model Content
[0004] This utility model provides a mechanical anti-clogging device for water supply and drainage pipelines to solve the above-mentioned technical problems.
[0005] A mechanical anti-clogging device for water supply and drainage pipes includes an inlet pipe, an outlet pipe, and a filter pipe, which are connected to each other. The filter pipe is located between the inlet pipe and the outlet pipe. The filter pipe is equipped with a filtering device and a pipe-closing device. The filtering device includes a filter screen, a first connecting rod, a movable seat, a second connecting rod, a plug plate, and a pull-out rod. The filter screen is connected to the first connecting rod. The first and second connecting rods are respectively connected to the movable seat. The second connecting rod is connected to the plug plate. The bottom of the plug plate is connected to the pull-out rod. The pipe-closing device includes a housing, a locking pin, and a handle. The housing is connected to the filter pipe. The locking pin is located inside the housing. The handle is connected to the locking pin. The locking pin has a through hole with the same inner diameter as the filter pipe.
[0006] Furthermore, a ring is provided at the bottom of the pull-out rod.
[0007] Furthermore, the bottom of the filter tube is provided with a removable tube cap.
[0008] Furthermore, the second connecting rod is a spring.
[0009] Furthermore, the water outlet pipe is equipped with a retaining ring.
[0010] Furthermore, the free end of the first connecting rod is threaded, and the filter screen is connected to the first connecting rod by a nut.
[0011] Furthermore, the inlet and outlet pipes are equipped with flanges.
[0012] Compared with the prior art, the advantages of this utility model are: by setting a filter screen in the pipeline, impurities can be effectively filtered out; when the water flow is not smooth, the filter screen can be removed for cleaning or replacement to prevent the entire pipeline from being blocked; and when cleaning impurities or replacing the filter screen, there is no need to stop the water supply. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present invention.
[0014] Figure 2 This is a cross-sectional view of the present invention in use.
[0015] Figure 3 This is a cross-sectional view of the present invention during the cleaning of impurities.
[0016] Figure 4 This is a schematic diagram of a filtration device.
[0017] Figure 5 This is a schematic diagram of the locking pin.
[0018] Reference numerals in the attached diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Filter pipe; 4. Filter screen; 5. First connecting rod; 6. Movable seat; 7. Second connecting rod; 8. Plug plate; 9. Pull-out rod; 10. Outer shell; 11. Locking pin; 12. Handle; 13. Through hole; 14. Ring; 15. Pipe cap; 16. Snap ring; 17. Nut; 18. Flange. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] like Figure 1-5 As shown, a mechanical anti-clogging device for water supply and drainage pipes includes an inlet pipe 1, an outlet pipe 2, and a filter pipe 3. The inlet pipe 1, outlet pipe 2, and filter pipe 3 are connected. The filter pipe 3 is located between the inlet pipe 1 and the outlet pipe 2. The filter pipe 3 is equipped with a filtering device and a pipe-closing device. The filtering device includes a filter screen 4, a first connecting rod 5, a movable seat 6, a second connecting rod 7, a blocking plate 8, and a pull-out rod 9. The filter screen 4 is connected to the first connecting rod 5. The first connecting rod 5 and the second connecting rod 7 are respectively connected to the movable seat 6. The second connecting rod 7 is connected to the blocking plate 8. The bottom of the blocking plate 8 is connected to the pull-out rod 9. The pipe-closing device includes a housing 10, a locking pin 11, and a handle 12. The housing 10 is connected to the filter pipe 3. The locking pin 11 is located inside the housing 10. The handle 12 is connected to the locking pin 11. The locking pin 11 has a through hole 13 with the same inner diameter as the filter pipe 3.
[0023] In a preferred embodiment, the bottom of the pull-out rod 9 is provided with a ring 14, which can be hooked with a hook to easily pull out the filter device for cleaning.
[0024] In a preferred embodiment, the bottom of the filter tube 3 is provided with a removable tube cap 15, which can seal the filter tube 3.
[0025] In a preferred embodiment, the second connecting rod 7 is a spring that can bend when the filter screen 4 is pushed in, making it easier to push in.
[0026] In a preferred embodiment, the water outlet pipe 2 is provided with a retaining ring 16, which can block the filter screen 4 and prevent it from falling off accidentally.
[0027] In a preferred embodiment, the free end of the first connecting rod 5 is threaded, and the filter screen 4 is connected to the first connecting rod 5 by a nut 17, which facilitates the replacement of the filter screen 4.
[0028] In a preferred embodiment, the inlet pipe 1 and the outlet pipe 2 are provided with flanges 18 for easy connection to the pipeline.
[0029] like Figure 2 and 3As shown, in use, water flows from the inlet pipe 1 to the outlet pipe 2. Impurities in the water flow are blocked by the filter screen 4, and the plug plate 8 blocks the filter pipe 3 to prevent water leakage. When it is necessary to clean or replace the filter screen 4, pull out the pull rod 9 downwards. During the process, the filter screen 4 and the first connecting rod 5 flip. After the filter device passes through the through hole 13 of the locking pin 11, rotate the handle 12. The locking pin 11 blocks the filter pipe 3 to prevent water from flowing through. After cleaning or replacement, push the filter device into the filter pipe 3, rotate the handle 12, and continue to push it upwards. Since the water flow is from the inlet pipe 1 to the outlet pipe 2, the filter screen 4 will flip towards the outlet pipe 2 to return to its original position.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A mechanical anti-clogging device for water supply and drainage pipes, characterized in that: The system includes an inlet pipe, an outlet pipe, and a filter pipe, which are connected together. The filter pipe is located between the inlet pipe and the outlet pipe. The filter pipe is equipped with a filtration device and a pipe-closing device. The filtration device includes a filter screen, a first connecting rod, a movable seat, a second connecting rod, a plug plate, and a pull-out rod. The filter screen is connected to the first connecting rod. The first and second connecting rods are respectively connected to the movable seat. The second connecting rod is connected to the plug plate. The bottom of the plug plate is connected to the pull-out rod. The pipe-closing device includes a housing, a locking pin, and a handle. The housing is connected to the filter pipe. The locking pin is located inside the housing. The handle is connected to the locking pin. The locking pin has a through hole with the same inner diameter as the filter pipe.
2. A mechanical sewer pipe unblocking device according to claim 1, wherein: The bottom of the pull-out rod is provided with a ring.
3. The mechanical sewer pipe anti-clogging device according to claim 1, characterized in that: The filter tube has a removable cap at the bottom.
4. The mechanical sewer pipe anti-clogging device according to claim 1, characterized in that: The second connecting rod is a spring.
5. The mechanical sewer pipe anti-clogging device according to claim 1, characterized in that: The water outlet pipe is equipped with a retaining ring.
6. A mechanical sewer pipe unblocking device according to claim 1, wherein: The free end of the first connecting rod is threaded, and the filter screen is connected to the first connecting rod by a nut.
7. The mechanical sewer pipe anti-clogging device according to claim 1, characterized in that: The inlet and outlet pipes are equipped with flanges.
Citation Information
Patent Citations
Anti-blocking device for drainage pipeline
CN221919705U