A filter device for water supply and drainage of municipal works
By designing a multi-stage filtration and automatic cleaning filtration device, the problem of pipe blockage caused by the accumulation of impurities in the municipal water supply and drainage system was solved, achieving stable water flow and efficient cleaning, and avoiding water source interruption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH BUREAU TIANJIN CONSTR ENG CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-23
Smart Images

Figure CN224388269U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water supply and drainage technology, specifically relating to a filtration device for water supply and drainage used in municipal engineering. Background Technology
[0002] Municipal water supply and drainage refers to the systems responsible for water supply and drainage within urban infrastructure. It includes municipal water supply systems and drainage systems, and is a crucial component for stable urban life and supporting economic and social development. The design, construction, and maintenance of municipal water supply and drainage systems are of great significance to the normal operation of a city and the quality of life of its residents. The water sources used in the water supply system include surface water and groundwater.
[0003] Because water contains impurities, these impurities can clog valves as the water flows through them. Furthermore, a high level of impurities can affect normal operation. Therefore, some existing pipelines are equipped with water filtration systems. However, installing a filtration system inside the pipeline presents two drawbacks: First, after filtration, impurities remain inside the pipeline, making timely cleaning impossible. Excessive accumulation of impurities can clog the pipeline, reducing water flow. Second, cleaning impurities from the pipeline requires shutting off the water supply, and restoring the supply after cleaning disrupts normal water usage.
[0004] Chinese Patent Publication No. CN215630567U discloses a filtration device for water supply and drainage in municipal engineering. The device includes a drain pipe, a corresponding device movably connected to the front of the outer surface of the drain pipe, a protective device threadedly connected to the rear of the corresponding device, a connecting pipe fixedly connected to the right side of the outer surface of the drain pipe, and a series of screw blocks fixedly connected to the right side of the outer surface of the connecting pipe. The inner wall of the drain pipe has several elongated grooves. A connecting device movably connects to the right end of the drain pipe, and a filtration device is engaged at the right end of the connecting device. This utility model, a filtration device for water supply and drainage in municipal engineering, effectively filters impurities in water through the coordinated use of the connecting device and the filtration device. It is easy to disassemble, install, and use, has a simple structure, is relatively inexpensive, and is suitable for widespread application, thus improving the drainage efficiency of municipal engineering projects.
[0005] However, current water supply and drainage systems have the following problems: The movable connection of the drain pipe's outer surface with corresponding components makes it impossible to filter impurities in the water flow. This leads to excessive accumulation of impurities, causing blockages in the pipes and reducing water flow.
[0006] Therefore, we propose a filtration device for water supply and drainage in municipal engineering. Utility Model Content
[0007] The purpose of this invention is to provide a filtration device for water supply and drainage in municipal engineering, which can solve the problem that related technologies cannot effectively filter impurities in water flow.
[0008] The specific technical solution adopted by this utility model is as follows:
[0009] A filtration device for water supply and drainage in municipal engineering includes an inlet pipe, an outlet pipe at one end of the inlet pipe, a filter pipe 1 installed between the inlet pipe and the outlet pipe via a flange, an emergency mechanism for water diversion on the outside of the filter pipe 1, the emergency mechanism including a tee pipe 1 connected to the inner wall of the inlet pipe and a tee pipe 2 connected to the inner wall of the outlet pipe, one end of the tee pipe 1 connected to a water supply pipe 1, one end of the tee pipe 2 connected to a water supply pipe 2, a filter pipe 2 installed between the water supply pipe 1 and the water supply pipe 2 via a flange, and a filtration device installed inside the filter pipe 1.
[0010] The filtration device includes a slot formed on the inner wall of a first filter pipe. A filter cylinder is installed on the inner wall of the slot. A sealing ring is fixedly connected to the circumferential surface of the filter cylinder. A first filter plate is slidably connected to the inner wall of the filter cylinder. A second filter plate is slidably connected to the inner wall of the filter cylinder. A motor is fixedly connected to the inner wall of the filter cylinder. A rotating shaft is fixedly connected to the output shaft of the motor. The circumferential surface of the rotating shaft rotates through the inner walls of the first and second filter plates.
[0011] A push bar is fixedly connected to the circumferential surface of the rotating shaft, a force-bearing block is fixedly connected to the back side of the first filter plate, and a force-bearing block is fixedly connected to the front side of the second filter plate. The function of the first filter plate is to filter water.
[0012] A reset spring is fixedly connected to the back side of filter plate one. The end of the reset spring away from filter plate one is fixedly connected to the front side of filter plate two. The function of the reset spring is to drive filter plate one and filter plate two to reset.
[0013] The top of the first force-bearing block is located on the displacement trajectory of the push bar, and the top of the second force-bearing block is located on the displacement trajectory of the push bar. The push bar, the first force-bearing block, and the second force-bearing block are rectangular in shape, and the side sections of the push bar, the first force-bearing block, and the second force-bearing block are inclined planes. The purpose of the top of the first force-bearing block being located on the displacement trajectory of the push bar is to push the first force-bearing block when the push bar rotates.
[0014] The filter cartridge is equipped with a cleaning device, which includes a brush plate. Brush bristles are fixedly connected to the side of the brush plate. A through groove is opened on the front side of the filter plate. A collection box is fixedly connected to the inner wall of the through groove. A sliding cover is slidably connected to the top of the collection box. A connecting plate is fixedly connected to the bottom of the sliding cover. The purpose of the collection box is to collect the debris that has been cleaned.
[0015] A spring is fixedly connected to the side of the connecting plate. The end of the spring away from the connecting plate is fixedly connected to the inner wall of the collection box. The function of the spring is to allow the sliding cover to be reset through the connecting plate.
[0016] The number of each of the brush plate, brush bristles, through groove, collection box, sliding cover, connecting plate, and spring spring is set to two, and they are arranged in a linear array along the vertical central axis of the rotating shaft. The side of the sliding cover is located on the displacement trajectory of the brush bristles. The purpose of setting the number of each of the brush plate, brush bristles, through groove, collection box, sliding cover, connecting plate, and spring spring to two, and arranging them in a linear array along the vertical central axis of the rotating shaft, is to facilitate the cleaning of the second filter plate.
[0017] The technical effects achieved by this utility model are as follows:
[0018] 1. This utility model, through the setting of a filtration device and components such as a slot, filter cylinder, sealing ring, filter plate one, and filter plate two, allows water to pass through the filter cylinder when it enters the water filter pipe one. When the water enters the filter cylinder, it passes through filter plate one for preliminary filtration of impurities in the water flow. After the water flows through filter plate one, it passes through filter plate two for further filtration, thereby filtering out the remaining impurities in the water flow.
[0019] 2. This utility model, through the setting of the cleaning device and components such as the brush plate, brush bristles, through groove, collection box, and sliding cover, enables the brush plate to rotate, which in turn drives the brush bristles to rotate. When the brush bristles rotate, they can push and clean the loose impurities that vibrate on filter plate one and filter plate two. When the brush bristles rotate and contact the sliding cover, the sliding cover will be pushed to one side by the force of the brush bristles, thereby opening the collection box. This allows the brush bristles to push the cleaned impurities into the collection box. When the sliding cover loses the pushing force of the brush bristles, it will be reset by the elastic spring to block the collection box. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the filtration device of this utility model;
[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning device of this utility model;
[0023] Figure 4 This is a utility model Figure 2 A schematic diagram of the three-dimensional magnified structure at point A in the middle;
[0024] Figure 5 This is a utility model Figure 3 A schematic diagram of the three-dimensional magnified structure at point B.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Inlet pipe; 2. Outlet pipe; 3. Filter pipe one; 4. Emergency mechanism; 41. T-pipe one; 42. T-pipe two; 43. Water supply pipe one; 44. Water supply pipe two; 45. Filter pipe two; 5. Filtration device; 51. Slot; 52. Filter cylinder; 53. Sealing ring; 54. Filter plate one; 55. Filter plate two; 56. Motor; 57. Rotating shaft; 58. Push bar; 59. Force block one; 510. Force block two; 511. Return spring; 6. Cleaning device; 61. Brush plate; 62. Brush bristles; 63. Through groove; 64. Collection box; 65. Sliding cover; 66. Connecting plate; 67. Spring spring. Detailed Implementation
[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0028] like Figure 1-5 As shown, a water supply and drainage filtration device for municipal engineering includes an inlet pipe 1, an outlet pipe 2 at one end of the inlet pipe 1, a filter pipe 3 installed between the inlet pipe 1 and the outlet pipe 2 via a flange, an emergency mechanism 4 for water diversion on the outside of the filter pipe 3, the emergency mechanism 4 includes a tee pipe 41 connected to the inner wall of the inlet pipe 1 and a tee pipe 42 connected to the inner wall of the outlet pipe 2, one end of the tee pipe 41 is connected to a water supply pipe 43, one end of the tee pipe 42 is connected to a water supply pipe 44, a filter pipe 45 is installed between the water supply pipe 43 and the water supply pipe 44 via a flange, and a filtration device 5 is installed inside the filter pipe 3.
[0029] The filter device 5 includes a slot 51, which is formed on the inner wall of the first filter pipe 3. A filter cylinder 52 is provided on the inner wall of the slot 51. A sealing ring 53 is fixedly connected to the circumferential surface of the filter cylinder 52. A first filter plate 54 is slidably connected to the inner wall of the filter cylinder 52. A second filter plate 55 is slidably connected to the inner wall of the filter cylinder 52. A motor 56 is fixedly connected to the inner wall of the filter cylinder 52. A rotating shaft 57 is fixedly connected to the output shaft of the motor 56. The circumferential surface of the rotating shaft 57 rotates through the inner walls of the first filter plate 54 and the second filter plate 55.
[0030] A push bar 58 is fixedly connected to the circumferential surface of the rotating shaft 57, a force-bearing block 59 is fixedly connected to the back side of the filter plate 54, and a force-bearing block 510 is fixedly connected to the front side of the filter plate 55. The function of the filter plate 54 is to filter water.
[0031] A reset spring 511 is fixedly connected to the back side of filter plate 54. The end of the reset spring 511 away from filter plate 54 is fixedly connected to the front side of filter plate 55. The function of the reset spring 511 is to drive filter plate 54 and filter plate 55 to reset.
[0032] The top of the first force-bearing block 59 is located on the displacement trajectory of the push bar 58, and the top of the second force-bearing block 510 is located on the displacement trajectory of the push bar 58. The push bar 58, the first force-bearing block 59 and the second force-bearing block 510 are rectangular in shape, and the side sections of the push bar 58, the first force-bearing block 59 and the second force-bearing block 510 are inclined surfaces. The purpose of the top of the first force-bearing block 59 being located on the displacement trajectory of the push bar 58 is to push the first force-bearing block 59 when the push bar 58 rotates.
[0033] The filter cartridge 52 is equipped with a cleaning device 6, which includes a brush plate 61. Brush bristles 62 are fixedly connected to the side of the brush plate 61. A through groove 63 is opened on the front side of the filter plate 54. A collection box 64 is fixedly connected to the inner wall of the through groove 63. A sliding cover 65 is slidably connected to the top of the collection box 64. A connecting plate 66 is fixedly connected to the bottom of the sliding cover 65. The function of the collection box 64 is to collect the debris that has been cleaned.
[0034] A spring 67 is fixedly connected to the side of the connecting plate 66. The end of the spring 67 away from the connecting plate 66 is fixedly connected to the inner wall of the collection box 64. The function of the spring 67 is to drive the sliding cover 65 to reset through the connecting plate 66.
[0035] The number of brush plate 61, brush bristles 62, through groove 63, collection box 64, sliding cover 65, connecting plate 66 and spring spring 67 are each set to two, and are arranged linearly along the vertical central axis of the rotating shaft 57. The side of the sliding cover 65 is located on the displacement trajectory of the brush bristles 62. The purpose of setting the number of brush plate 61, brush bristles 62, through groove 63, collection box 64, sliding cover 65, connecting plate 66 and spring spring 67 to two, and arranging them linearly along the vertical central axis of the rotating shaft 57, is to allow for cleaning of filter plate 55.
[0036] According to the above structure, firstly, when using this device to filter water, by closing the valve on filter pipe 2 45 and opening the valve on filter pipe 1 3, municipal water supply flows in from inlet pipe 1. The three-way valve in three-way pipe 1 41 controls the water flow into filter pipe 1 3. When the water flows into filter pipe 1 3, it passes through filter cylinder 52. Upon entering filter cylinder 52, the water passes through filter plate 1 54 for preliminary filtration of impurities. After passing through filter plate 1 54, the water passes through filter plate 2 55 for further filtration, thus removing any remaining impurities. By starting motor 56, the output shaft of motor 56 rotates, driving shaft 57 to rotate. The rotation of shaft 57 drives push bar 58 to rotate, causing push bar 58 to contact force block 1. When push bar 58 contacts force block 1 59 and force block 2 510, push bar 58 will use its own inclined surface and the inclined surface of force block 1 59 and force block 2 510 to squeeze force block 1 59 and force block 2 510, causing filter plate 1 54 and filter plate 2 55 to vibrate. When push bar 58 stops squeezing force block 1 59 and force block 2 510, causing filter plate 1 54 and filter plate 2 55 to vibrate, filter plate 1 54 and filter plate 2 55 will be reset by return spring 511. When push bar 58 squeezes force block 1 59 and force block 2 510 again, causing filter plate 1 54 and filter plate 2 55 to vibrate, the above principle will be repeated, thereby indirectly driving filter plate 1 54 and filter plate 2 55 to vibrate, so that the impurities stuck on filter plate 1 54 and filter plate 2 55 can be vibrated and loosened.
[0037] The rotation of the shaft 57 drives the cleaning device 6. When the shaft 57 rotates, it drives the brush plate 61 to rotate. When the brush plate 61 rotates, it drives the bristles 62 to rotate. When the bristles 62 rotate, they can push and clean the loose impurities on the filter plate 54 and the filter plate 55. When the bristles 62 rotate and contact the sliding cover 65, the sliding cover 65 will be pushed to one side by the force of the rotation of the bristles 62, thereby opening the collection box 64. This allows the bristles 62 to push the cleaned impurities into the collection box 64. When the sliding cover 65 loses the pushing force of the bristles 62, it will be reset by the spring spring 67 to block the collection box 64.
[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A filtration device for water supply and drainage in municipal engineering, comprising an inlet pipe (1), characterized in that, The water inlet pipe (1) has an outlet pipe (2) at one end. A filter pipe (3) is installed between the water inlet pipe (1) and the water outlet pipe (2) through a flange. An emergency mechanism (4) for water diversion is located outside the filter pipe (3). The emergency mechanism (4) includes a three-way pipe (41) connected to the inner wall of the water inlet pipe (1) and a three-way pipe (42) connected to the inner wall of the water outlet pipe (2). One end of the three-way pipe (41) is connected to a water supply pipe (43), and one end of the three-way pipe (42) is connected to a water supply pipe (44). A filter pipe (45) is installed between the water supply pipe (43) and the water supply pipe (44) through a flange. A filter device (5) is installed inside the filter pipe (3). The filter device (5) includes a slot (51) which is opened on the inner wall of the first filter pipe (3). A filter cylinder (52) is provided on the inner wall of the slot (51). A sealing ring (53) is fixedly connected to the circumferential surface of the filter cylinder (52). A filter plate (54) is slidably connected to the inner wall of the filter cylinder (52). A filter plate (55) is slidably connected to the inner wall of the filter cylinder (52). A motor (56) is fixedly connected to the inner wall of the filter cylinder (52). A rotating shaft (57) is fixedly connected to the output shaft of the motor (56). The circumferential surface of the rotating shaft (57) rotates through the inner walls of the first filter plate (54) and the second filter plate (55).
2. A filtration device for water supply and drainage in municipal engineering according to claim 1, characterized in that: A push bar (58) is fixedly connected to the circumferential surface of the rotating shaft (57), a force-bearing block (59) is fixedly connected to the back side of the first filter plate (54), and a force-bearing block (510) is fixedly connected to the front side of the second filter plate (55).
3. A filtration device for water supply and drainage in municipal engineering according to claim 1, characterized in that: A reset spring (511) is fixedly connected to the back side of the first filter plate (54), and the end of the reset spring (511) away from the first filter plate (54) is fixedly connected to the front side of the second filter plate (55).
4. A filtration device for water supply and drainage in municipal engineering according to claim 2, characterized in that: The top of the first force-bearing block (59) is located on the displacement trajectory of the push bar (58), and the top of the second force-bearing block (510) is located on the displacement trajectory of the push bar (58). The push bar (58), the first force-bearing block (59), and the second force-bearing block (510) are rectangular in shape, and the side sections of the push bar (58), the first force-bearing block (59), and the second force-bearing block (510) are inclined planes.
5. A filtration device for water supply and drainage in municipal engineering according to claim 1, characterized in that: The filter cylinder (52) is equipped with a cleaning device (6), which includes a brush plate (61). The brush plate (61) has bristles (62) fixedly connected to its side. The filter plate (54) has a through groove (63) on its front side. The inner wall of the through groove (63) is fixedly connected to a collection box (64). The top of the collection box (64) is slidably connected to a sliding cover (65), and the bottom of the sliding cover (65) is fixedly connected to a connecting plate (66).
6. A filtration device for water supply and drainage in municipal engineering according to claim 5, characterized in that: A spring (67) is fixedly connected to the side of the connecting plate (66), and the end of the spring (67) away from the connecting plate (66) is fixedly connected to the inner wall of the collection box (64).
7. A filtration device for water supply and drainage in municipal engineering according to claim 5, characterized in that: The number of the brush plate (61), brush bristles (62), through groove (63), collection box (64), sliding cover (65), connecting plate (66) and spring spring (67) are each set to two, and are arranged linearly along the vertical central axis of the rotating shaft (57). The side of the sliding cover (65) is located on the displacement trajectory of the brush bristles (62).