Nodular cast iron well lid facilitating drainage and filtration

By designing a filter frame, impeller, and scraper structure on the ductile iron manhole cover, the problem of debris blockage caused by the simple drainage structure of the manhole cover is solved, achieving effective debris filtration and centralized cleaning, and ensuring smooth drainage.

CN120906237APending Publication Date: 2025-11-07HENGYANG QIANGNENG MFG CO LTD
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Patent Information

Application Number
CN202511183990.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

The existing ductile iron manhole covers have a simple drainage structure, which makes it easy for debris such as mud, fallen leaves and garbage to enter the underground pipe network, causing blockage and affecting normal drainage.

Method used

A ductile iron manhole cover with a filter frame, impeller and scraper was designed. The impeller is driven to rotate by water flow, which drives the scraper to scrape the debris into the collection frame. The unblocking mechanism prevents the debris from clogging the drain outlet.

Benefits of technology

It effectively filters and collects debris, prevents blockages, ensures normal drainage, and facilitates centralized cleaning of debris.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of well lids, in particular to a nodular cast iron well lid facilitating drainage and filtration. A drainage structure of an existing nodular cast iron well lid is simple in design, the mode that a single or a small number of strip-shaped and round drainage holes are formed in the surface of the well lid is mostly adopted, an effective filtering structure is lacked, silt, fallen leaves, garbage and other sundries on a road surface easily enter an underground pipe network through the drainage holes, the pipe network is blocked, and meanwhile the drainage structure is poor in filtering effect. Sundries and the like are easy to accumulate at the drainage port to block the drainage port and influence normal drainage. According to the nodular cast iron well lid convenient to drain and filter, a well lid body is hinged to a mounting base, a filter frame is fixedly connected to the bottom of the mounting base, and a collecting frame is arranged on the filter frame. The rotating frame rotates to enable the connecting frame and the sleeve to move up and down, the sleeve moves upwards to extend out of the drainage opening upwards, and therefore sundries out of the drainage opening of the well lid are jacked upwards while drainage is conducted, and the situation that the sundries block or block the drainage opening, and normal drainage is affected is prevented.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of well covers, and particularly relates to a nodular cast iron well cover facilitating drainage and filtration. BACKGROUND

[0002] In the construction of urban infrastructure, well covers, as a key component of underground pipe network systems, are widely used in municipal roads, residential areas, industrial parks and other scenes, mainly serving to cover wellheads and ensure the safety of pedestrians and vehicles. At present, the materials of well covers on the market are various, among which nodular cast iron well covers have become one of the mainstream choices due to their high strength, high toughness, strong corrosion resistance and long service life.

[0003] Specifically, the drainage structure design of the existing nodular cast iron well cover is relatively simple, and a single or small number of strip-shaped or circular drainage holes are usually formed on the surface of the well cover. However, the design lacks effective filtration structure, and road mud, fallen leaves, garbage and other debris can easily enter the underground pipe network through the drainage holes, causing pipe network blockage. Meanwhile, the debris can easily accumulate at the drainage opening and block the drainage opening, affecting normal drainage. SUMMARY

[0004] In order to overcome the shortcomings and solve the technical problems, the present application provides a nodular cast iron well cover facilitating drainage and filtration, which can effectively filter and collect debris and ensure normal drainage by dredging the drainage opening.

[0005] The technical scheme of the present application is as follows: a nodular cast iron well cover facilitating drainage and filtration, comprising: a well cover hingedly connected to a mounting seat, a filter frame fixedly connected to the bottom of the mounting seat, a collection frame provided on the filter frame, a fixed seat fixedly connected to the center of the bottom of the well cover, a rotating column rotatably connected to the fixed seat, a rotating frame fixedly connected to the rotating column, an impeller fixedly connected to the rotating frame, a transmission head fixedly connected to one end of the rotating column, a mounting bracket provided on the filter frame, a butt joint rotatably connected to the center of the mounting bracket, and a scraping strip fixedly connected to the lower end of the butt joint.

[0006] In one embodiment, a limiting strip is provided on the inner wall of the mounting seat, a plurality of drainage openings are formed on the well cover, and a pattern is provided on the surface of the well cover.

[0007] In one embodiment, a notch is formed in the center of the filter frame, the collection frame is arranged at the notch, a handle is provided on the collection frame, the collection frame can be taken out through the handle, and the filter frame and the collection frame are both net-shaped structures.

[0008] In one embodiment, a clamping groove is formed in the filter frame, and the mounting bracket is clamped with the filter frame through the clamping groove.

[0009] In one of the embodiments, the transmission head is polygonal structure, and the butt joint is provided with a slot hole corresponding to the transmission head.

[0010] In one of the embodiments, the impeller is located directly below the drain port.

[0011] In one of the embodiments, the filter frame is conical, and the scraping strip is in contact with the inner side of the filter frame.

[0012] In one of the embodiments, a dredging mechanism for preventing blockage is further included, the dredging mechanism comprises a plurality of sleeves, the plurality of sleeves are respectively slidably connected to the plurality of drain ports of the well lid, a connecting frame is fixedly connected between the plurality of sleeves, a plurality of inclined blocks are fixedly connected to the bottom of the connecting frame, and three top rods are fixedly connected to the rotating frame.

[0013] In one of the embodiments, one side of the inclined block is inclined surface structure, the top end of the top rod is round head structure, and the top rod and the inclined block are located on the same circumference.

[0014] The beneficial effect is that the effect of the present application is achieved. 1. The impeller is driven to rotate by water flow, and the scraping strip is driven to rotate by the transmission head and the butt joint to scrape the impurities filtered by the filter frame, so that the impurities fall into the middle collecting frame along the filter frame, thereby cleaning the filter frame, preventing the filter frame from being blocked due to the accumulation of impurities, and affecting drainage, and the impurities are collected and concentrated for subsequent concentrated cleaning.

[0015] The connecting frame and the sleeve move up and down by rotating the rotating frame, the sleeve moves upward to extend upward from the drain port, thereby pushing the impurities out of the drain port of the well lid upward during drainage, preventing the impurities from blocking or blocking the drain port and affecting normal drainage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective structural schematic diagram of the present application.

[0017] Figure 2 It is a partial perspective structural schematic diagram of the present application.

[0018] Figure 3 It is a perspective structural schematic diagram of the mounting seat, filter frame and collecting frame of the present application.

[0019] Figure 4 It is a perspective structural schematic diagram of the mounting seat, filter frame, collecting frame and handle of the present application.

[0020] Figure 5 It is a split perspective structural schematic diagram of the present application.

[0021] Figure 6This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the unblocking mechanism of the present invention.

[0024] In the attached diagram, the following labels are used: 1-mounting base, 101-limiting strip, 2-manhole cover, 21-drain outlet, 3-filter frame, 31-slot, 4-collection frame, 5-handle, 61-fixed base, 62-rotating column, 63-rotating frame, 64-drive head, 65-impeller, 66-mounting frame, 67-connecting joint, 68-scraper, 7-dredging mechanism, 71-connecting frame, 72-sleeve, 73-inclined block, 74-top rod. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] Example 1: A ductile iron manhole cover that facilitates drainage and filtration, such as Figures 1-8 As shown, the device includes: a mounting base 1, a manhole cover 2 hinged to the mounting base 1, a limiting strip 101 on the inner wall of the mounting base 1, a manhole cover 2 having several drainage outlets 21 and a patterned surface, an impeller 65 located directly below the drainage outlets 21, causing the impeller 65 to rotate when water flows through the drainage outlets 21, a filter frame 3 fixedly connected to the bottom of the mounting base 1, a collection frame 4 on the filter frame 3, a fixing base 61 fixedly connected to the center of the bottom of the manhole cover 2, and a rotating column 62 rotatably connected to the fixing base 61. A rotating frame 63 is fixedly connected to the rotating column 62, and an impeller 65 is fixedly connected to the rotating frame 63. A transmission head 64 is fixedly connected to one end of the rotating column 62. A mounting bracket 66 is provided on the filter frame 3. A connecting joint 67 is rotatably connected to the center of the mounting bracket 66. The transmission head 64 has a polygonal structure. The connecting joint 67 has a slot corresponding to the transmission head 64. When the manhole cover 2 is closed, the transmission head 64 mates with the connecting joint 67. A scraper 68 is fixedly connected to the lower end of the connecting joint 67. The filter frame 3 is conical, and the scraper 68 contacts the inner side of the filter frame 3.

[0027] The filter frame 3 has a notch in the center, and the collection frame 4 is mounted at the notch. The collection frame 4 is provided with a handle 5, and the collection frame 4 can be taken out through the handle 5. Both the filter frame 3 and the collection frame 4 are mesh structures.

[0028] The filter frame 3 is provided with a clamping groove 31, and the mounting frame 66 is clamped with the filter frame 3 through the clamping groove 31.

[0029] Further comprising a dredging mechanism 7 for preventing blockage, the dredging mechanism 7 comprises a plurality of sleeves 72, and the plurality of sleeves 72 are respectively correspondingly connected with the plurality of drain holes 21 of the well lid 2 in a sliding manner, and the plurality of sleeves 72 are fixedly connected with a connecting frame 71, the bottom of the connecting frame 71 is fixedly connected with a plurality of inclined blocks 73, and the rotating frame 63 is fixedly connected with three top rods 74.

[0030] One side of the inclined block 73 is a slope structure, and the top end of the top rod 74 is a round head structure, and the top rod 74 and the inclined block 73 are located on the same circumference.

[0031] In use, first, the well lid 2 is covered, at this time, the transmission head 64 is butted with the butt joint 67, the mounting seat 1 and the well lid 2 are installed on the well mouth of the sewer, and in the process of drainage, the drain hole 21 of the well lid 2 will intercept large debris, and the water flow will flow downward through the drain hole 21 on the well cover, and the filter frame 3 will filter out the impurities in the water flow when the water flow passes through the filter frame 3, thereby filtering the water, and in the process of the water flow flowing downward from the drain hole 21, the impeller 65 and the rotating frame 63 will rotate, the impeller 65 will rotate at the same time to drive the scraping strip 68 to rotate through the transmission head 64 and the butt joint 67, the scraping strip 68 will rotate to scrape the debris filtered by the filter frame 3, and the debris will fall into the collecting frame 4 in the middle along the filter frame 3, thereby cleaning the filter frame 3, preventing the filter frame 3 from being blocked due to the accumulation of debris, affecting the drainage, and simultaneously collecting the debris for subsequent centralized cleaning; the rotating frame 63 will rotate at the same time to drive the top rod 74 to rotate, the top rod 74 will extrude the inclined plate in the process of rotating to make the connecting frame 71 and the sleeve 72 first move upward, and then the top rod 74 continues to rotate without extruding the inclined plate, and under the action of gravity, the connecting frame 71 and the sleeve 72 are reset downward, and the rotating frame 63 rotates to repeatedly extrude the inclined block 73 through the top rod 74, so that the connecting frame 71 and the sleeve 72 move up and down, and the sleeve 72 moves upward to protrude upward from the drain hole 21, thereby upwardly moving the debris discharged from the drain hole 21 of the well lid 2 to prevent the debris from blocking or blocking the drain hole 21, affecting normal drainage, after the drainage is completed, the staff can use tools to open the well lid 2, the handle 5 of the sleeve 72 takes out the collecting frame 4, and after cleaning, the collecting frame 4 is put back, and the well lid 2 is covered.

[0032] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ductile iron grate that facilitates drainage filtration, characterized by: Include: The mounting seat (1), the well lid (2) is hinged on the mounting seat (1), the bottom of the mounting seat (1) is fixedly connected with the filter frame (3), the filter frame (3) is provided with a collection frame (4), the bottom center of the well lid (2) is fixedly connected with a fixed seat (61), the fixed seat (61) is rotatably connected with a rotating column (62), the rotating column (62) is fixedly connected with a rotating frame (63), the rotating frame (63) is fixedly connected with an impeller (65), one end of the rotating column (62) is fixedly connected with a transmission head (64), the filter frame (3) is provided with a mounting bracket (66), the center of the mounting bracket (66) is rotatably connected with a butt joint (67), the lower end of the butt joint (67) is fixedly connected with a scraping strip (68).

2. A ductile iron grate as defined in claim 1, wherein: The inner wall of the mounting seat (1) is provided with a limiting strip (101), a plurality of drainage holes (21) are formed in the well lid (2), and the surface of the well lid (2) is provided with a pattern.

3. The ductile iron grate of claim 1, wherein: The filter frame (3) is centrally provided with a notch, the collection frame (4) is arranged at the notch, the collection frame (4) is provided with a handle (5), the collection frame (4) can be taken out through the handle (5), and the filter frame (3) and the collection frame (4) are both net structures.

4. A ductile iron grate as defined in claim 3 wherein: The filter frame (3) is provided with a clamping groove (31), and the mounting bracket (66) is clamped with the filter frame (3) through the clamping groove (31).

5. A ductile iron grate as defined in claim 4 wherein: The transmission head (64) is a polygonal structure, and the butt joint (67) is provided with a slot hole corresponding to the transmission head (64).

6. A ductile iron grate as defined in claim 5 wherein: The impeller (65) is located directly below the drainage hole (21).

7. A ductile iron grate as defined in claim 6 wherein: The filter frame (3) is conical, and the scraping strip (68) is in contact with the inner side of the filter frame (3).

8. A ductile iron grate as defined in claim 7 wherein: Further comprising a dredging mechanism (7) for preventing blockage, the dredging mechanism (7) comprises a plurality of sleeve pipes (72), a plurality of sleeve pipes (72) are respectively connected with a plurality of drainage holes (21) of the well lid (2) in a sliding manner, a plurality of sleeve pipes (72) are fixedly connected with a connecting frame (71), the bottom of the connecting frame (71) is fixedly connected with a plurality of inclined blocks (73), and three top rods (74) are fixedly connected with the rotating frame (63).

9. A ductile iron grate as defined in claim 8 wherein: One side of the inclined block (73) is a slope structure, the top end of the top rod (74) is a round head structure, and the top rod (74) and the inclined block (73) are located on the same circumference.