Cast iron well lid with rainwater diversion function
By designing guide vanes and locking structures on the manhole covers, the problems of existing manhole covers being unable to divert rainwater and being inconvenient to maintain have been solved, achieving rapid rainwater drainage and ensuring safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-10
AI Technical Summary
Existing manhole covers cannot effectively divert rainwater during the rainy season and are inconvenient to maintain.
A cast iron manhole cover with rainwater diversion function was designed, including a cover plate assembly, a diversion plate, a fall protection net, and a locking structure. The diversion plate enables rainwater to be discharged quickly to prevent pedestrians from falling, and the locking structure facilitates disassembly and maintenance.
It achieves efficient drainage of rainwater, prevents pedestrians from falling, ensures safety, and facilitates underground maintenance.
Smart Images
Figure CN224106475U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of well lid, concretely is cast -iron well lid with rainwater diversion function. BACKGROUND
[0002] As an important part of urban infrastructure, well covers have multiple key roles. For example, well covers are used to cover various underground facilities (such as drainage wells, cable wells, gas wells, etc.), preventing external objects from entering the well and protecting underground facilities from damage. At the same time, it can also prevent pedestrians or vehicles from accidentally falling into the well, ensuring public safety. For example, during the rainy season or heavy rain, well covers, as part of the drainage system, help quickly drain surface water, prevent urban waterlogging, and ensure that traffic and residents' lives are not affected.
[0003] A rainwater well cover with a flood prevention function is disclosed in a Chinese patent (Grant Announcement No. CN214940886U). The patent technology drives the entire movable cover to rotate by setting a motor to drive the movable block to rotate, adjusts the angle between the upper connecting plate and the lower connecting plate, and changes the size of the water inlet aperture on the well cover. During rainy days, the upper connecting plate overlaps with the lower connecting plate, increasing the water inlet aperture and accelerating the flow of rainwater into the well cover to achieve the flood prevention effect. On non-rainy days, the movable cover is adjusted to place the upper connecting plate and the lower connecting plate in a cross position, reducing the water inlet aperture and preventing large-volume debris from falling into the well. However, it cannot guide the rainwater, and it is not convenient to install, disassemble, and maintain. SUMMARY
[0004] The purpose of the utility model is to provide a cast iron well cover with rainwater diversion function to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] The cast iron well cover with rainwater diversion function includes a well shaft and a connecting sleeve clamped on the upper end of the well shaft. The upper end of the connecting sleeve is embedded with a cover plate assembly. The inner side of the well shaft is installed with a fall-preventing net. The cover plate assembly includes a cover plate body, the outer side of which is fixedly connected with a positioning ring, and the inner side of the cover plate body is fixedly connected with a protruding disc in the middle. A plurality of spiral-shaped diversion fins are fixedly connected between the cover plate body and the protruding disc. A plurality of drainage holes are arranged between every two diversion fins on the inner side of the cover plate body. A pull hook control is arranged on the inner side of the protruding disc. The lower part of the lower end of the cover plate body is fixedly connected with horizontally and vertically staggered reinforcing strips.
[0007] As a further scheme of the utility model, the inner side wall of the well shaft is fixedly connected with a support ring, the outer side of the fall-preventing net is fixedly connected with a fastening ring, and the fastening ring is placed on the upper end of the support ring.
[0008] As a further scheme of the utility model: the inner side wall of the connecting sleeve is fixedly connected with a stepped snap ring, and a roughening groove is uniformly arranged on the outer side of the connecting sleeve.
[0009] As a further scheme of the utility model: the outer side of the upper end of the well shaft is fixedly connected with a bayonet, and the bayonet is embedded in the lower end of the inner side of the connecting sleeve.
[0010] As a further scheme of the utility model: the lower end of the cover plate body and the positioning ring are jointly clamped on the stepped snap ring.
[0011] As a further scheme of the utility model: a group of open grooves are arranged on the inner side of the stepped snap ring, a positioning point is arranged on the connecting sleeve near the open grooves, the lower end of the positioning ring is fixedly connected with a group of clamping heads, an indicating arrow is arranged on the upper end of the positioning ring near one of the clamping heads, and the group of open grooves are matched with the group of clamping heads.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] The utility model discloses a cast iron well cover with rainwater diversion function, which comprises a well shaft, a connecting sleeve, a cover plate assembly and a positioning ring. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the cast iron well cover with rainwater diversion function.
[0015] Figure 2 It is a partial exploded structural schematic diagram of the cast iron well cover with rainwater diversion function.
[0016] Figure 3 It is an exploded structural schematic diagram of the cast iron well cover with rainwater diversion function.
[0017] Figure 4 It is a top view structural schematic diagram of the cover plate assembly in the cast iron well cover with rainwater diversion function.
[0018] Figure 5 It is a bottom view structural schematic diagram of the cover plate assembly in the cast iron well cover with rainwater diversion function.
[0019] In the figure: 1, cover plate assembly; 11, cover plate body; 12, positioning ring; 13, indication arrow; 14, convex disc; 15, deflector; 16, pull hook control; 17, drainage hole; 18, reinforcing strip; 19, clamping head; 2, connecting sleeve; 21, roughening groove; 22, stepped snap ring; 23, open slot; 24, positioning point; 3, anti-falling net; 31, fastening ring; 4, shaft; 41, support ring; 42, bayonet. DETAILED DESCRIPTION
[0020] Please refer to Figures 1-5 , the utility model discloses cast iron manhole cover with rainwater diversion function, including shaft 4, and the connecting sleeve 2 of bayonet in the upper end of shaft 4, the upper end of connecting sleeve 2 is embedded and is installed with cover plate assembly 1, the inboard of shaft 4 is installed with anti-falling net 3, and connecting sleeve 2 and shaft 4 are all installed on the well seat below ground.
[0021] In Figure 4 and Figure 5 , cover plate assembly 1 includes cover plate body 11, the outer side of cover plate body 11 is fixedly connected with positioning ring 12, and the middle part of the inboard of cover plate body 11 is fixedly connected with convex disc 14, a plurality of spiral-shaped deflector 15 are fixedly connected between cover plate body 11 and convex disc 14, and a plurality of drainage holes 17 are formed between every two deflector 15 on the inboard of cover plate body 11, rainwater is reversed through deflector 15, thereby having efficient drainage effect;The inboard of convex disc 14 is provided with pull hook control 16, by hooking pull hook control 16 through a tool (such as a hook), cover plate assembly 1 can be disassembled from connecting sleeve 2;The lower part of the lower end of cover plate body 11 is fixedly connected with reinforcing strip 18 that is horizontally and vertically staggered, and the overall strength of cover plate assembly 1 can be improved through reinforcing strip 18;Cover plate assembly 1 and connecting sleeve 2 are both components of cast iron material, so that they have the characteristics of high strength, high toughness, corrosion resistance and low comprehensive use cost.
[0022] In Figure 3 , the inner wall of connecting sleeve 2 is fixedly connected with stepped snap ring 22, and roughening groove 21 is uniformly formed on the outer side of connecting sleeve 2, when connecting sleeve 2 is buried below the road surface, the bonding strength of connecting sleeve 2 and the road surface can be improved through roughening groove 21.
[0023] In Figure 3 , Figure 4 and Figure 5 , the lower end of cover plate body 11 and positioning ring 12 is jointly bayoneted on stepped snap ring 22, so that cover plate assembly 1 can be installed on connecting sleeve 2.
[0024] In Figure 3 , Figure 4 and Figure 5In the step type snap ring 22, a group of open slots 23 are arranged on the inner side of the step type snap ring 22, a positioning point 24 is arranged on the upper end of the connecting sleeve 2 near the open slots 23, a group of clamping heads 19 are fixedly connected to the lower end of the positioning ring 12, and an indicating arrow 13 is arranged on the upper end of the positioning ring 12 near one of the clamping heads 19. A group of open slots 23 are matched with a group of clamping heads 19. When the cover plate assembly 1 is placed on the connecting sleeve 2, the clamping head 19 is dropped from the corresponding open slot 23, then the tool is hooked to the pull hook control 16, and the cover plate assembly 1 is rotated by a certain angle, so that the open slot 23 is dislocated with the clamping head 19, so that the cover plate assembly 1 and the connecting sleeve 2 are firmly clamped together; when a person or a vehicle steps on it, the cover plate assembly 1 will not be raised, ensuring safety; when the cover plate assembly 1 needs to be removed from the connecting sleeve 2, the tool is hooked to the pull hook control 16, and the cover plate assembly 1 is rotated, when the indicating arrow 13 is aligned with one of the positioning points 24, the cover plate assembly 1 is pulled upward, and the clamping head 19 is slid upward from the positioning point 24.
[0025] In Figure 3 、 Figure 4 and Figure 5 , the inner side wall of the well shaft 4 is fixedly connected with a support ring 41, the outer side of the anti-falling net 3 is fixedly connected with a fastening ring 31, and the fastening ring 31 is placed on the upper end of the support ring 41, so that the anti-falling net 3 can be stably placed on the inner side of the well shaft 4. When the cover plate assembly 1 is damaged, the anti-falling net 3 can prevent pedestrians from falling into the well; the outer side of the upper end of the well shaft 4 is fixedly connected with a bayonet 42, and the bayonet 42 is embedded in the inner side of the lower end of the connecting sleeve 2, so that the connecting sleeve 2 and the well shaft 4 can be installed together.
[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A cast iron manhole cover with rainwater diversion function, comprising a well cylinder (4), and a connecting sleeve (2) clamped on the upper end of the well cylinder (4), characterized in that, The upper end of the connecting sleeve (2) is embeddedly installed with a cover plate assembly (1), the inner side of the well shaft (4) is installed with a falling prevention net (3), the cover plate assembly (1) comprises a cover plate body (11), the outer side of the cover plate body (11) is fixedly connected with a positioning ring (12), the inner side of the cover plate body (11) is fixedly connected with a convex disc (14) in the middle, a plurality of spiral-shaped flow guide vanes (15) are fixedly connected between the cover plate body (11) and the convex disc (14), a plurality of drainage holes (17) are formed between every two flow guide vanes (15) on the inner side of the cover plate body (11), a pull hook control (16) is formed on the inner side of the convex disc (14), and the lower end of the cover plate body (11) is fixedly connected with a horizontal and vertical staggered reinforcing strip (18).
2. The cast iron cover with rainwater diversion function according to claim 1, characterized in that, The inner side wall of the well shaft (4) is fixedly connected with a supporting ring (41), the outer side of the falling prevention net (3) is fixedly connected with a fastening ring (31), and the fastening ring (31) is placed on the upper end of the supporting ring (41).
3. The cast iron cover with rainwater diversion function according to claim 1, characterized in that, The inner side wall of the connecting sleeve (2) is fixedly connected with a stepped snap ring (22), and a pull slot (21) is uniformly formed on the outer side of the connecting sleeve (2).
4. The cast iron cover with rainwater diversion function according to claim 1, characterized in that, The outer side of the upper end of the well shaft (4) is fixedly connected with a bayonet (42), and the bayonet (42) is embedded in the lower end of the inner side of the connecting sleeve (2).
5. The cast iron cover with rainwater diversion function according to claim 3, characterized in that, The lower end of the cover plate body (11) and the positioning ring (12) are jointly clamped on the stepped snap ring (22).
6. The cast iron cover with rainwater diversion function according to claim 3, characterized in that, The inner side of the stepped snap ring (22) is provided with a group of open grooves (23), the upper end of the connecting sleeve (2) is provided with a positioning point (24) near the open grooves (23), the lower end of the positioning ring (12) is fixedly connected with a group of clamping heads (19), the upper end of the positioning ring (12) is provided with an indication arrow (13) near one of the clamping heads (19), and one group of the open grooves (23) are matched with one group of the clamping heads (19).