A municipal drainage filtering device and drainage well

Abstract

A kind of municipal drainage filtering device and drainage well belong to municipal drainage technical field, including first well plate for being buckled on well shaft, first well plate is buckled with second well plate above, second well plate is rotatably connected with first well plate;First well plate is alternatively provided with several first water area and second water area along its annular direction on it, third water area is arranged between adjacent first water area and second water area, the filtering capacity of first water area, second water area and third water area is different;Second well plate is spaced apart and provided with several water inlet area along its annular direction, the shape of water inlet area is same with the shape of first water area, second water area and third water area, the included angle between adjacent two water inlet area is same with the included angle between adjacent two first water area / adjacent two second water area / adjacent two third water area, by the rotation between second well plate and first well plate, filtering capacity and drainage capacity are changed, to adapt to different drainage, filtering demand.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage technology, and in particular to a municipal drainage filtration device and a drainage well. Background Technology

[0002] Drainage wells are an important part of urban drainage systems. They are located under roads, squares and other public places to collect rainwater and sewage and transport them to sewage treatment plants or other treatment facilities. A drainage well includes a well cylinder and a drainage well cover installed on top of the well cylinder. The drainage well cover has several drainage holes to allow rainwater and sewage to flow from the road surface into the well cylinder.

[0003] In order to prevent clogging, existing drainage well cover structures have a filter screen installed under the cover and attached to the well cylinder (e.g., publication number CN221895916U). Rainwater or sewage from the road surface flows into the well cylinder through the drainage well cover and is filtered by the filter screen to prevent debris from clogging the drainage well. At the same time, since the filter screen and the well cylinder are detachably connected, it is also convenient to clean up debris.

[0004] The existing drainage well cover structure mainly serves to cover and protect the well cylinder. Debris in rainwater and sewage is mainly filtered by the filter screen. However, the number and size of the filter screen holes are fixed, resulting in a fixed filtration capacity that cannot meet different filtration needs. In addition, the specifications of the drainage holes of the drainage well cover are fixed, resulting in a fixed drainage volume that cannot adapt to different drainage needs. This makes the drainage well less adaptable and seriously affects the drainage filtration effect and efficiency. Utility Model Content

[0005] To address the technical problem in the existing drainage well cover structure mentioned above, where debris in rainwater and sewage is mainly filtered by a filter screen with a fixed filtration capacity, which cannot meet different filtration needs, this utility model provides a municipal drainage filtration device.

[0006] The technical solution of this utility model is as follows: This utility model provides a municipal drainage filtration device, including a first well plate for fastening onto a well cylinder, a second well plate fastened above the first well plate, and the second well plate being rotatably connected to the first well plate; the first well plate has a plurality of first and second water-passing zones alternately arranged along its circumference, and a third water-passing zone is arranged between adjacent first and second water-passing zones, with the first, second, and third water-passing zones having different filtration capacities for water; the second well plate has a plurality of water-inlet zones spaced apart along its circumference, the shape of the water-inlet zones being the same as the shape of the first, second, and third water-passing zones, and the included angle between two adjacent water-inlet zones being the same as the included angle between two adjacent first water-passing zones / two adjacent second water-passing zones / two adjacent third water-passing zones. Because the second well plate is rotatably connected to the first well plate, not only can the water-passing zones connected to the water-inlet zones be changed to change the filtration capacity, but the connection area between the water-inlet zones and the corresponding water-passing zones can also be changed, thereby realizing the change of water flow at the water-passing zones, so that the water flow capacity can be adjusted as needed to adapt to different water flow requirements.

[0007] Preferably, a plurality of first water passage holes are evenly distributed in the first water passage zone, and a plurality of second water passage holes are evenly distributed in the second water passage zone. The size of the first water passage holes is smaller than that of the second water passage holes. The third water passage zone is a through-hole structure, which divides the filtration capacity and water passage capacity of different water passage zones. The small size of the first water passage holes allows for finer filtration of the water and interception of smaller impurities. The larger size of the second water passage holes allows for increased water passage speed while ensuring filtration effect. The through-hole structure of the third water passage zone can achieve the maximum water passage capacity. The appropriate water passage zone can be selected for drainage by rotating the second well plate according to actual needs, meeting diverse drainage and filtration requirements.

[0008] Preferably, the first well plate and the second well plate are fastened to the filter screen, and the filter screen has a larger filter hole size than the second water passage hole. The filter screen can filter the water entering through the third water passage zone, ensuring rapid drainage while filtering large debris and preventing blockage of the drainage well.

[0009] Preferably, the filter screen includes a filter screen body, and a support limiting plate is fixedly provided on the periphery of the top of the filter screen body. The support limiting plate is provided with a first connecting groove and a second connecting groove in sequence along the radial direction. The first well plate and the second well plate are inserted into the first connecting groove, and the top of the well cylinder is inserted into the second connecting groove. The insertion of the first well plate and the second well plate into the first connecting groove can prevent them from shifting or shaking during use and ensure the stability of the rotational connection between them. The insertion of the top of the well cylinder into the second connecting groove makes the filter screen tightly connected to the well cylinder, which enhances the firmness of the connection between the entire drainage filtration device and the well cylinder and improves the overall stability of the device.

[0010] Preferably, the lower surface of the second well plate is fixedly provided with a plug along the circumference, the plug surrounding the outside of all water inlet zones, and the upper surface of the first well plate is provided with a slot along its circumference. The plug is inserted into the slot and surrounds the outside of the water inlet zone, which can prevent water from overflowing from the edge of the water inlet zone and ensure that the water flow can accurately enter the corresponding water passage zone through the water inlet zone, thereby improving the efficiency and accuracy of drainage filtration. At the same time, it also provides a guiding effect for the rotation of the second well plate relative to the first well plate, making the rotation process smoother.

[0011] Preferably, the length of the insert is equal to the depth of the slot. The insert can be used to support the second well plate and serve as a guide to prevent the second well plate from shifting during rotation. At the same time, it ensures the reliability of the connection between the second well plate and the first well plate and avoids problems such as water leakage or reduced filtration effect caused by loose connection.

[0012] Preferably, the second well plate has an insertion hole, which allows for easier and less strenuous rotation of the second well plate by inserting a tool into the hole. This enables quick adjustment of the water flow area and flow zone according to actual needs, improving the flexibility and convenience of the device.

[0013] A drainage well includes a well shaft connected to a drainage pipe. A municipal drainage filter device is detachably installed on the top of the well shaft, facilitating regular inspection, maintenance, and replacement of the drainage filter device. When the filter device is damaged or clogged, it can be promptly disassembled for repair or replacement with a new device without affecting the normal use of the drainage well, thus reducing maintenance costs and improving the service life and reliability of the drainage well.

[0014] Preferably, the filter body is inserted into the cylinder, which enhances the stability and sealing of the filter. The cylinder can protect the filter body and prevent the filter from being damaged by external forces during use.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are: 1. The first well plate is provided with several first water passage zones, second water passage zones and third water passage zones with different filtration capacities along its circumference. The second well plate is provided with several water inlet zones at intervals along its circumference. The second well plate is rotatably connected to the first well plate. This not only changes the water passage zone connected to the water inlet zone to change the filtration capacity, but also changes the connection area between the water inlet zone and the corresponding water passage zone, thereby changing the water flow rate at the water passage zone. This allows the water flow capacity to be adjusted as needed to meet different water flow requirements.

[0016] 2. The first well plate and the second well plate are fastened to the filter screen. The filter screen has a larger filter hole size than the second water passage hole. The filter screen can filter the water entering through the third water passage zone, ensuring rapid drainage while filtering large debris and preventing blockage of the drainage well. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a municipal drainage filtration device according to one or more embodiments of the present invention. Figure 2 This is a schematic diagram of the structure of the filter screen according to one or more embodiments of the present invention; Figure 3 This is a schematic diagram of the structure of the first well plate according to one or more embodiments of the present invention; Figure 4 This is a schematic diagram of the structure of the second well plate according to one or more embodiments of the present invention; Figure 5 This is a cross-sectional structural diagram of a drainage well according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. First well plate; 2. Second well plate; 3. First water passage zone; 4. Second water passage zone; 5. Third water passage zone; 6. First water passage hole; 7. Second water passage hole; 8. Water inlet zone; 9. Filter screen; 10. Filter screen body; 11. Support limiting edge; 12. First connecting groove; 13. Second connecting groove; 14. Filter hole; 15. Well shaft; 16. Drainage pipe; 17. Insertion hole; 18. Insertion block; 19. Slot. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] Example 1 In a typical embodiment of this utility model, such as Figures 1-4As shown, a municipal drainage filtration device is proposed, comprising: a first well plate 1 and a second well plate 2. The first well plate 1 is fastened and installed above the well cylinder 15 of the drainage well. The first well plate 1 has several water passage zones spaced apart along its circumference. The second well plate 2 is fastened above the first well plate 1, and the second well plate 2 is rotatably connected to the first well plate 1. The second well plate 2 has several water inlet zones 8 spaced apart along its circumference. Rainwater and sewage can flow into the well cylinder 15 sequentially through the water inlet zones 8 and the water passage zones. Different water passage zones are provided with water passage holes of different specifications to assist in the filtration of debris. The rotation of the second well plate 2 can change the position of the water inlet zones 8, thereby connecting the water inlet zones 8 with water passage zones of different specifications to achieve adjustment of filtration capacity and stronger overall adaptability.

[0021] like Figure 3 As shown, the first well plate 1 has a cover-like structure. Several first water-passing zones 3, second water-passing zones 4, and third water-passing zones 5 are spaced circumferentially on the first well plate 1. Each of the first, second, and third water-passing zones is fan-shaped with the same fan size. The first and second water-passing zones 3 and 4 each have several water-passing holes, while the third water-passing zone 5 is a fan-shaped through-hole structure. The first and second water-passing zones 3 and 4 not only allow water to pass through but also filter impurities using the water-passing holes. The water-passing hole sizes in the first and second water-passing zones 3 and 4 are different to meet different filtration requirements. The first and second water-passing zones 3 and 4 are alternately arranged circumferentially on the first well plate 1, and the third water-passing zone 5 is located between adjacent first and second water-passing zones 3 and 4. Figure 4 As shown, the second well plate 2 is a cover-shaped structure. Several water inlet zones 8 are provided on the second well plate 2 at intervals along its circumference. The water inlet zone 8 is a fan-shaped through-hole structure. The fan-shaped size of the water inlet zone 8 is the same as that of the first water passage zone 3, the second water passage zone 4, and the third water passage zone 5. The included angle between two adjacent water inlet zones 8 is the same as the included angle between two adjacent first water passage zones 3, two adjacent second water passage zones 4, and two adjacent third water passage zones 5. Thus, the relative position of the water inlet zone 8 with the first water passage zone 3, the second water passage zone 4, and the third water passage zone 5 can be changed by rotating the second well plate 2, so as to connect different water passage zones according to different needs and change the filtration capacity.

[0022] Specifically, the first water passage zone 3 is provided with a number of first water passage holes 6 evenly, and the second water passage zone 4 is provided with a number of second water passage holes 7 evenly. The size of the first water passage hole 6 is smaller than that of the second water passage hole 7. The first water passage zone 3 can filter impurities more finely than the second water passage zone 4. The third water passage zone 5 mainly plays the role of water passage to improve drainage efficiency. In actual use, different water passage zones can be selected according to the size of the impurities to be filtered and the drainage efficiency.

[0023] To prevent large amounts of debris from entering the well shaft 15 through the third water passage zone 5, a filter screen 9 is installed below the first well plate 1. The filter screen 9 is detachably installed on the top of the well shaft 15. The filter screen 9 has several filter holes 14, the size of which is larger than the second water passage hole 7. The filter screen 9, together with the third water passage zone 5, ensures drainage efficiency while preventing a large amount of large debris from entering the well shaft 15, thus avoiding blockage of the drainage well. The filter screen 9 is detachably connected to the well shaft 15, which facilitates the subsequent cleaning of debris.

[0024] In practical use, since the second well plate 2 and the first well plate 1 are rotatably connected, not only can the water passage area connected to the water inlet area 8 be changed to change the filtration capacity, but also the connection area between the water inlet area 8 and the corresponding water passage area (for example, the connection area between the water inlet area 8 and the third water passage area 5) can be changed, thereby realizing the change of the water flow in the water passage area, so that the water flow capacity can be adjusted as needed to adapt to different water flow requirements.

[0025] The lower surface of the second well plate 2 is also fixedly provided with a plug 18. The plug 18 is arranged circumferentially along the second well plate 2 and surrounds the outside of all water inlet zones 8. The upper surface of the first well plate 1 is provided with a slot 19 circumferentially. The length of the plug 18 is equal to the depth of the slot 19. The plug 18 is used to be inserted into the slot 19 to support the second well plate 2 and play a guiding role, so as to prevent the second well plate 2 from shifting during rotation. At the same time, it ensures the reliability of the connection between the second well plate 2 and the first well plate 1, and avoids problems such as water leakage or reduced filtration effect caused by loose connection.

[0026] The second well plate 2 is also provided with an insertion hole 17 for inserting iron rods or other rod structures, so as to drive the second well plate 2 to rotate by inserting the rods. In order to facilitate the application of force, two insertion holes 17 can be provided, and the two insertion holes 17 are arranged opposite each other.

[0027] Understandably, in actual use, the specific number of sockets 17 can be selected according to actual needs, and no specific restrictions are made here.

[0028] like Figure 2 As shown, the filter screen 9 includes a filter screen body 10 and a support limiting plate 11. The support limiting plate 11 is fixedly disposed on the periphery of the top of the filter screen body 10. The support limiting plate 11 is provided with a first connecting groove 12 and a second connecting groove 13 in a radial direction. The first connecting groove 12 is located on the upper surface of the support limiting plate 11 for the installation of the first well plate 1 and the second well plate 2. The second connecting groove 13 is located on the lower surface of the support limiting plate 11 for the detachable installation of the filter screen 9 on the well barrel 15.

[0029] Specifically, the diameter of the second connecting groove 13 is the same as the outer diameter of the well shaft 15, and the width of the second connecting groove 13 is the same as the wall thickness of the well shaft 15. Thus, when installing the filter screen 9, the top of the well shaft 15 is inserted into the second connecting groove 13, and the filter screen body 10 is inserted into the inside of the well shaft 15, thereby realizing the quick connection between the filter screen 9 and the well shaft 15. The width of the first connecting groove 12 is not less than the combined wall thickness of the first well plate 1 and the second well plate 2. The first well plate 1 and the second well plate 2 are both fastened above the filter screen 9, and the bottom of the first well plate 1 and the second well plate 2 are inserted into the first connecting groove 12 to provide support and limit the first well plate 1 and the second well plate 2.

[0030] Example 2 In another typical embodiment of this utility model, such as Figure 5 As shown, a drainage well is proposed, including: a well shaft 15, a drainage pipe 16, and a municipal drainage filtration device as described in Example 1. The drainage pipe 16 is connected to the interior of the well shaft 15. The drainage pipe 16 is arranged horizontally and is higher than the bottom of the well shaft 15. The sewage that has settled inside the well shaft 15 is discharged to the outside through the drainage pipe 16. The municipal drainage filtration device is installed on the top of the well shaft 15 to adjust its drainage volume and filtration capacity as needed.

[0031] The specific working principle is as follows: Based on the required filtration capacity, select the corresponding first water passage zone 3, second water passage zone 4, and third water passage zone 5. The filtration capacity of the first water passage zone 3 is greater than that of the second water passage zone 4, and the filtration capacity of the second water passage zone 4 is greater than that of the filter screen 9. Rotate the second well plate 2 according to the selected water passage zone, so that the inlet zone 8 on the second well plate 2 connects with the selected first water passage zone 3 / second water passage zone 4 / third water passage zone 5. This allows rainwater and sewage to sequentially pass through the inlet zone 8 and the first water passage zone 3 / second water passage zone 4 / third water passage zone 5 connected to the inlet zone 8 before entering the well cylinder 15. Since the filtration capacity of the first water passage zone 3 and second water passage zone 4 is greater than that of the filter screen 9, only the water entering through the third water passage zone 5 will be filtered by the filter screen 9. Therefore, the drainage well has three filtration capacities to choose from to meet different filtration needs. When it is necessary to adjust the drainage volume, simply rotate the second well plate 2 to change the connection area between the inlet zone 8 and the corresponding water passage zone, which is convenient and quick.

[0032] It should be noted that the filtration capacity described in this embodiment refers to the filtration effect on impurities. The smaller the size of the impurities being filtered, the stronger the corresponding filtration capacity.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A municipal drainage filtration device, comprising: The first well plate (1) for fastening onto the well casing (15) is characterized in that a second well plate (2) is fastened above the first well plate (1), and the second well plate (2) is rotatably connected to the first well plate (1). The first well plate (1) is provided with several first water passage zones (3) and second water passage zones (4) alternately along its circumference. A third water passage zone (5) is provided between adjacent first water passage zones (3) and second water passage zones (4). The first water passage zone (3), second water passage zone (4) and third water passage zone (5) have different filtration capabilities for water. The second well plate (2) is provided with several water inlet zones (8) at intervals along its circumference. The shape of the water inlet zone (8) is the same as that of the first water passage zone (3), the second water passage zone (4) and the third water passage zone (5). The included angle between two adjacent water inlet zones (8) is the same as the included angle between two adjacent first water passage zones (3) / two adjacent second water passage zones (4) / two adjacent third water passage zones (5).

2. The municipal drainage filtration device according to claim 1, characterized in that, The first water passage area (3) is provided with a number of first water passage holes (6) evenly, and the second water passage area (4) is provided with a number of second water passage holes (7) evenly. The size of the first water passage hole (6) is smaller than the size of the second water passage hole (7). The third water passage area (5) is a through hole structure.

3. The municipal drainage filtration device according to claim 2, characterized in that, The first well plate (1) and the second well plate (2) are fastened to the filter screen (9), and the filter holes (14) on the filter screen (9) are larger than the second water passage holes (7).

4. The municipal drainage filtration device according to claim 3, characterized in that, The filter screen (9) includes a filter screen body (10). A support limiting plate is fixedly provided on the periphery of the top of the filter screen body (10). A first connecting groove (12) and a second connecting groove (13) are provided in the radial direction on the support limiting plate. A first well plate (1) and a second well plate (2) are inserted into the first connecting groove (12). The top of the well barrel (15) is inserted into the second connecting groove (13).

5. The municipal drainage filtration device according to claim 1, characterized in that, The lower surface of the second well plate (2) is fixed with a plug (18) along the circumference. The plug (18) surrounds the outside of all water inlet zones (8). The upper surface of the first well plate (1) is provided with a slot (19) along its circumference. The plug (18) is inserted into the slot (19).

6. The municipal drainage filtration device according to claim 5, characterized in that, The length of the insert (18) is equal to the depth of the slot (19).

7. The municipal drainage filtration device according to claim 1, characterized in that, The second well plate (2) has an insertion hole (17).

8. A drainage well, characterized in that, include: The well shaft (15) is connected to a drainage pipe (16), and the top of the well shaft (15) is detachably equipped with a municipal drainage filter device as described in any one of claims 1-7.

9. The drainage well according to claim 8, characterized in that, The filter body (10) is inserted into the cylinder.

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