Municipal water supply and drainage filtering device

Abstract

The utility model relates to the technical field of drainage filtering, in particular to a municipal water supply and drainage filtering device. The device comprises a drainage pipe, a filter pipe connected with the drainage pipe and a filter plate arranged in the filter pipe, a plurality of filter holes are formed in the filter plate, a movable opening allowing the filter plate to penetrate back and forth is formed in the filter pipe, and a cleaning brush making contact with the filter plate is fixedly connected to the inner side wall of the filter pipe. A sealing shell matched with the filtering plate is fixedly connected to the filtering pipe, a movable rod is fixedly connected to the filtering plate, and a penetrating opening matched with the movable rod is formed in the sealing shell. According to the device, when the pipeline is in a connected state, the filtering plate can be cleaned, impurities accumulated on the filtering holes are removed in time, and the situation that the filtering holes are blocked and consequently the water discharge amount is reduced is avoided; and all the parts of the device can be conveniently detached and maintained and repaired.

Description

Technical Field

[0001] This utility model relates to the field of drainage filtration technology, specifically a municipal water supply and drainage filtration device. Background Technology

[0002] Municipal water supply and drainage filtration systems are a crucial component of urban infrastructure, playing a vital role in maintaining public health and environmental safety. Their core functions can be summarized as follows: First, through a multi-stage physical filtration process, they effectively remove suspended solids, silt, algae, and larger particulate pollutants from water sources, significantly improving water quality and ensuring drinking water safety and wastewater discharge standards. Second, filtration systems can intercept some pathogens and microorganisms carried in the water, reducing the risk of waterborne diseases and protecting public health. Third, as a pretreatment stage, they reduce the burden on subsequent water treatment processes, improving overall treatment efficiency and economy. Furthermore, regular backwashing maintenance maintains stable filtration performance and extends system lifespan. In conclusion, municipal water supply and drainage filtration systems are indispensable key facilities for ensuring the recycling of urban water resources and guaranteeing the quality of drinking water for residents.

[0003] In existing technologies, traditional municipal water supply and drainage filtration devices mainly consist of inlet channels, support layers, flushing systems, and outlet pipes. These components are tightly connected by standardized accessories such as flanges, threads, or grooved joints. These connections utilize gaskets for sealing and are secured with bolts, making them suitable for withstanding high pressures. Threaded connections are commonly used for smaller diameter pipes and can be directly tightened, facilitating quick on-site installation.

[0004] However, when using the traditional municipal water supply and drainage filtration device structure, when a certain component needs to be repaired or maintained, it is not convenient to repair and inspect individual components because the entire structure of the traditional municipal water supply and drainage filtration device is an integral unit. Once an internal component is damaged or aged, it is often necessary to replace the entire device rather than simply replacing the faulty component. This undoubtedly leads to high maintenance costs and a long process, which may interrupt water supply services and affect the lives of citizens and industrial production.

[0005] Chinese patent CN202420541596.5 discloses "A Water Supply and Drainage Pipe with Filtering Function" (publication number CN221880666U). This device includes a first drain pipe, a corrugated hose, and a second drain pipe. A corrugated hose is fixedly attached to one end of the first drain pipe, and the second drain pipe is fixedly connected to the other end of the corrugated hose. A filter screen is provided on the inner wall of the first drain pipe, and two fixing devices are fixedly attached to both sides of the filter screen. However, this device has some drawbacks: the filter screen can only be cleaned after the pipe is disassembled; it cannot remove impurities accumulated on the filter screen when the pipe is connected. Over time, this may reduce the drainage flow rate of the pipe. Utility Model Content

[0006] In order to solve the above-mentioned prior art problems, the utility model provides a municipal water supply and drainage filtering device, can when pipeline is in the connection state, to the filter screen is cleaned, timely remove the impurity accumulated on the filter screen.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a municipal water supply and drainage filtering device, including drain pipe, with the filter tube that drain pipe is connected, set up in the filter tube inside filter board, multiple filter holes are set up on the filter board, the movable mouth that can be supplied filter board passes back and forth is set up on the filter tube, the inside wall of filter tube is fixedly connected with the cleaning brush that filter board contacts, the filter tube is fixedly connected with the sealing shell that filter board matches, the filter board is fixedly connected with movable rod, the sealing shell is set up with the through -going opening that movable rod matches.

[0008] Adopt the above structure design, staff back and forth pull movable rod, make cleaning brush to filter board clean, and then can when pipeline is in the connection state, to the filter board is cleaned, timely remove the impurity accumulated on the filter hole.

[0009] Preferably, the outer side wall of the sealing shell is fixedly connected with an inner threaded cylinder, the movable rod passes through the inner threaded cylinder through a thread, the movable rod includes a threaded rod passing through the inner threaded cylinder through a thread, a rotating connecting block fixedly connected to the lower end of the threaded rod, and a fixed rod sleeved on the rotating connecting block, the rotating connecting block is inverted T-shaped in cross section, and the fixed rod is fixedly connected to the filter plate.

[0010] Adopt the above structure design, while realizing the sealing of filter tube, drive movable rod moves up and down.

[0011] Preferably, the diameter of the fixed rod is greater than the diameter of the through -going opening, and a rubber sealing sleeve is fixedly connected to the outer side wall of the fixed rod.

[0012] Adopt the above structure design, strengthen the sealing effect of the device.

[0013] Preferably, cleaning brushes are arranged on the front and rear surfaces of the filter plate.

[0014] Adopt the above structure design, can filter plate clean is more clean.

[0015] Preferably, the filter tube is connected to the drain pipe through a thread, and a rotating handle is fixedly connected to the outer side wall of the filter tube.

[0016] Adopt the above structure design, it is convenient to disassemble the filter tube, and it is convenient for staff to maintain and maintain.

[0017] Preferably, the filter pipe is internally provided with a mounting ring connected through screw threads, the mounting ring is fixedly connected with a filter basket, and the mounting ring is fixedly connected with an auxiliary rod.

[0018] With the above structure, the filter basket can be conveniently mounted and dismounted, and the filter basket can be conveniently dismounted, cleaned or replaced.

[0019] Preferably, one end of the drain pipe is fixedly connected with a water inlet pipe, the water inlet pipe is provided with a ball valve, and the water inlet pipe is provided with external screw threads.

[0020] With the above structure, the water discharge amount can be conveniently controlled.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1) The device can clean the filter plate when the pipeline is in a connected state, and timely remove impurities accumulated on the filter holes, thereby avoiding the filter holes from being blocked and reducing the water discharge amount.

[0023] 2) The device can be conveniently dismounted, and each component can be conveniently maintained and repaired. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Fig. 1 is a structural schematic view of the present application;

[0025] Figure 2 Fig. 2 is a structural schematic view of the inside of the filter pipe of the present application;

[0026] Figure 3 Fig. 3 is a structural schematic view of the movable rod of the present application;

[0027] Figure 4 Fig. 4 is a structural schematic view of the filter plate and the movable rod of the present application;

[0028] Figure 5 Fig. 5 is a structural schematic view of the water inlet pipe of the present application;

[0029] Figure 6 Fig. 6 is a structural schematic view of the filter plate and the movable rod of the present application. DETAILED DESCRIPTION

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6The utility model provides a technical scheme: a municipal water supply and drainage filtering device, including drain pipe 1, filtering pipe 2 being connected with drain pipe 1, filtering plate 3 being arranged in filtering pipe 2, multiple filter holes 31 are set up on filtering plate 3, the movable mouth 32 that can supply filtering plate 3 to and fro is set up on filtering pipe 2, the inside wall of filtering pipe 2 is fixedly connected with the cleaning brush 33 of filtering plate 3 contact, the sealing shell 4 that filtering pipe 2 is fixedly connected with filtering plate 3 is matched, the movable rod 41 that filtering plate 3 is fixedly connected, the through -going port 42 that sealing shell 4 is set up with movable rod 41 is matched.

[0031] When filtering plate 3 enters sealing shell 4, the surface of filtering plate 3 can be attached with the inside wall of sealing shell 4.

[0032] The inside wall of sealing shell 4 is fixedly connected with internal thread cylinder 5, and movable rod 41 passes through internal thread cylinder 5 through threads, movable rod 41 includes threaded rod 401 passing through internal thread cylinder 5 through threads, rotating connecting block 402 fixedly connected to the lower end of threaded rod 401, fixed rod 403 sleeved on rotating connecting block 402, the cross section of rotating connecting block 402 is inverted T-shaped, and fixed rod 403 is fixedly connected to filtering plate 3.

[0033] In order to facilitate the rotation of threaded rod 401, the top end of threaded rod 401 is fixedly connected with rotating plate 409.

[0034] The diameter of fixed rod 403 is greater than the diameter of through -going port 42, and rubber sealing sleeve 404 is fixedly connected to the outside wall of fixed rod 403.

[0035] Cleaning brush 33 is semicircular ring, cleaning brush 33 is arranged at movable mouth 32, and cleaning brush 33 is arranged on the front and back of filtering plate 3.

[0036] Filtering pipe 2 is connected on drain pipe 1 through threads, and rotating handle 29 is fixedly connected to the outside wall of filtering pipe 2.

[0037] The inside of filtering pipe 2 is installed ring 21 through threads, filtering basket 22 is fixedly connected to installation ring 21, and auxiliary rod 23 is fixedly connected to installation ring 21.

[0038] One end of drain pipe 1 is fixedly connected with water inlet pipe 11, ball valve 12 is arranged on water inlet pipe 11, and external threads are arranged on water inlet pipe 11.

[0039] Working principle: when using the device, the inlet pipe 11 is connected to the pipeline by screwing, and during daily use, the user can control the water inflow into the drain pipe 1 by turning the ball valve 12; when cleaning the filter plate 3, the user rotates the rotating plate 409 to drive the threaded rod 401 to rotate, and under the action of the screw thread, the threaded rod 401 moves upward, while the fixed rod 403 slips on the threaded rod 401 due to the rotation of the connecting block 402, so that the filter plate 3 moves upward without rotating, and at the same time, the filter plate 3 is in frictional contact with the cleaning brush 33, which removes the impurities on the filter hole 31, and the user repeatedly rotates the rotating plate 409 in forward and reverse directions to clean the filter plate 3.

[0040] When the device is maintained, the worker rotates the drain pipe 1 to detach the drain pipe 1 from the pipeline, holds the rotating handle 29 and rotates the filter pipe 2 to detach the filter pipe 2 from the drain pipe 1, then the worker rotates the auxiliary rod 23 to detach the filter basket 22 from the filter pipe, and cleans or replaces the filter basket 22, and the worker then inspects other components.

[0041] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not have technical substantial significance, and any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of relative relationship, without substantially changing the technical content, is also regarded as the scope of the utility model.

[0042] The utility model has been described above with reference to the preferred embodiments, but the protection scope of the utility model is not limited thereto, and all technical solutions falling within the scope of the claims are within the protection scope of the utility model. Various improvements can be made to the utility model and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A municipal water supply and drainage filtering device, comprising a drainage pipe (1), a filtering pipe (2) connected with the drainage pipe (1), and a filtering plate (3) arranged inside the filtering pipe (2), characterized in that: The filter plate (3) is provided with a plurality of filter holes (31), the filter tube (2) is provided with a movable port (32) through which the filter plate (3) can pass back and forth, the inner side wall of the filter tube (2) is fixedly connected with a cleaning brush (33) in contact with the filter plate (3), the filter tube (2) is fixedly connected with a sealing shell (4) matched with the filter plate (3), the filter plate (3) is fixedly connected with a movable rod (41), and the sealing shell (4) is provided with a through port (42) matched with the movable rod (41).

2. The municipal water supply and drainage filtering device according to claim 1, characterized in that: The outer side wall of the sealing shell (4) is fixedly connected with an inner threaded cylinder (5), the movable rod (41) passes through the inner threaded cylinder (5) through threads, the movable rod (41) comprises a threaded rod (401) passing through the inner threaded cylinder (5) through threads, a rotary connecting block (402) fixedly connected to the lower end of the threaded rod (401), and a fixed rod (403) sleeved on the rotary connecting block (402), the cross section of the rotary connecting block (402) is inverted T-shaped, and the fixed rod (403) is fixedly connected to the filter plate (3).

3. The municipal water supply and drainage filtering device according to claim 2, characterized in that: The diameter of the fixed rod (403) is greater than that of the through port (42), and the outer side wall of the fixed rod (403) is fixedly connected with a rubber sealing sleeve (404).

4. The municipal water supply and drainage filtering device according to claim 1, characterized in that: The cleaning brush (33) is semicircular ring-shaped, and the front and rear surfaces of the filter plate (3) are both provided with the cleaning brush (33).

5. The municipal water supply and drainage filtering device according to claim 1, characterized in that: The filter tube (2) is connected to the drain pipe (1) through threads, and the outer side wall of the filter tube (2) is fixedly connected with a rotary handle (29).

6. The municipal water supply and drainage filtering device according to claim 1, characterized in that: The inside of the filter tube (2) is provided with a mounting ring (21) connected through threads, the mounting ring (21) is fixedly connected with a filter basket (22), and the mounting ring (21) is fixedly connected with an auxiliary rod (23).

7. A municipal water supply and sewerage filtration device according to any one of claims 1 to 6, characterised in that: One end of the drain pipe (1) is fixedly connected with a water inlet pipe (11), the water inlet pipe (11) is provided with a ball valve (12), and the water inlet pipe (11) is provided with an outer thread.

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