Street drainage well lid for sponge city

By designing street drainage manhole covers for sponge cities, automatic opening and closing are achieved using hoop rings, upper manhole plates, and triggering mechanisms. Combined with nets to intercept pollutants, the safety issues of existing manhole covers under heavy rain conditions and the problem of pollutant entry are solved, thus improving drainage efficiency and safety.

CN224092664UActive Publication Date: 2026-04-07JINAN HEATING POWER ENG CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing drainage well covers lack effective warning mechanisms under heavy rainfall conditions, resulting in blind spots and pollutants directly entering the drainage system, affecting safety and treatment costs.

Method used

A street drainage manhole cover for sponge cities was designed, comprising a hoop, an upper manhole plate, a triggering mechanism, and a flexible spring. The upper manhole plate is raised and lowered by an electric cylinder, and combined with a net to intercept pollutants, it achieves automatic opening and closing functions.

Benefits of technology

It improves the safety and efficiency of drainage well covers during heavy rain, prevents pollutants from entering, reduces subsequent treatment costs, and extends the service life of electric cylinders.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a street drainage well lid for a sponge city, which structurally comprises a shroud ring, an annular placing groove is formed at the top of the shroud ring, an upper well plate is clamped in the annular placing groove, a plurality of water leakage holes are arranged on the upper well plate, a plurality of blind holes are arranged in the annular placing groove, flexible springs are arranged in the blind holes, and the flexible springs are connected with the upper well plate. A horizontal guide hole is formed in the inner wall of the shroud ring, a plurality of elastic rods are arranged at the bottom of the upper well plate, inserting rods are arranged at the ends of the elastic rods and matched with the horizontal guide hole, and a trigger mechanism is arranged at the bottom of the shroud ring. The upper well plate is controlled by the electric cylinder of the trigger mechanism to ascend and descend, drainage is automatically started in rainstorm, and pollutant inflow is prevented by closing at ordinary times; the net bag intercepts floating objects, pipeline blockage is avoided, and manual overhaul is facilitated through the pull ring design.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sponge city technical field, concretely is a street drainage well lid for sponge city. BACKGROUND

[0002] Under the impetus of the modern city sustainable development concept, as an innovative urban hydrology management solution, the sponge city emphasizes the construction of the self-adaptive urban water circulation system, especially maintains the efficient water resource regulation and disaster prevention function in the extreme precipitation event.

[0003] The existing drainage well lid usually adopts the full open type drainage mode under the heavy rainfall condition to ensure the flood discharge efficiency, but the completely open drainage port lacks the effective warning mechanism, and the visual blind area is easily formed in the rainstorm weather, which leads to the misjudgment of the safe path of the pedestrian and causes the accident; moreover, the indiscriminate open drainage channel makes various types of pollutants on the ground directly enter the drainage system, which not only increases the subsequent treatment cost, but also constitutes the potential threat to the urban water body ecology. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a street drainage well lid for sponge city, which solves the problems in the background art.

[0005] The utility model solves the technical scheme that the technical problem thereof is: a street drainage well lid for sponge city, the structure includes a hoop, the hoop top forms annular placement groove, the annular placement groove is connected with the upper well plate, the upper well plate is equipped with a plurality of water leakage holes, the annular placement groove is equipped with a plurality of blind holes, the blind hole is installed with flexible spring, the hoop inner wall forms horizontal guide hole, the upper well plate bottom is equipped with a plurality of elastic rods, the elastic rod end is equipped with the plug rod, the plug rod is matched with horizontal guide hole, the hoop bottom is equipped with trigger mechanism, the trigger mechanism controls the upper well plate lifting.

[0006] Further, the trigger mechanism includes an electric cylinder, a vertical wedge block and a horizontal wedge block, the hoop bottom is equipped with a vertical guide hole, the horizontal guide hole is communicated with the vertical guide hole, the horizontal guide hole is slidably connected with the horizontal wedge block, the vertical guide hole is slidably connected with the vertical wedge block, the wedge surface of the horizontal wedge block is matched with the wedge surface of the vertical wedge block, the electric cylinder is fixedly connected at the hoop bottom, and the telescopic rod of the electric cylinder is connected at the bottom of the vertical wedge block.

[0007] Further, the telescopic rod of the electric cylinder vertically moves upwards to drive the vertical wedge block to extrude the horizontal wedge block, the right end of the horizontal wedge block extrudes the plug rod, the plug rod is separated from the horizontal guide hole, and then the flexible spring pushes the upper well plate to separate from the annular placement groove.

[0008] Further, the horizontal guide hole top is equipped with an upper auxiliary sliding groove, a limiting plate is slidably connected in the upper auxiliary sliding groove, and the limiting plate is connected with the horizontal wedge block.

[0009] Further, sleeves are arranged on the inserting rods, and a plurality of the sleeves are connected with the net bags.

[0010] Further, a pull ring is embedded in the middle of the upper well plate.

[0011] Further, an outer positioning groove is arranged on the annular placing groove, and an outer positioning plate is arranged on the upper well plate and matched with the outer positioning groove.

[0012] Further, an annular sealing groove is arranged in the annular placing groove, and a sealing ring is arranged in the annular sealing groove.

[0013] Further, a protective cover is arranged outside the electric cylinder.

[0014] The utility model discloses beneficial effects:

[0015] The utility model discloses drainage well lid can control the lift of upper well plate through the cooperation of trigger mechanism, flexible spring, elastic rod and inserting rod, and the electric cylinder of control trigger mechanism can open automatically and drain when storm, and the upper well plate closure leak hole can make part small amount rainwater enter, and also prevent the pollution flow into, improve the security of use.

[0016] Because the net bag is arranged on the bottom of the upper well plate, the floating matter can be intercepted through the net bag, and the pipeline is prevented from being blocked, and the pull ring is arranged on the top of the upper well plate, and the manual maintenance is facilitated through the pull ring. DRAWINGS

[0017] Figure 1 It is the plan view of the utility model;

[0018] Figure 2 It is Figure 1 The sectional view along A-A direction;

[0019] Figure 3 It is Figure 2 The local enlarged view of B;

[0020] In the drawing:

[0021] 1 - hoop; 100 - hoop body; 104 - flexible spring; 105 - annular sealing groove; 2 - blind hole; 200 - upper well plate; 201 - pull ring; 202 - leak hole; 301 - outer positioning groove; 302 - outer positioning plate; 31 - elastic rod; 32 - inserting rod; 33 - sleeve; 34 - net bag; 4 - trigger mechanism; 41 - horizontal guide hole; 42 - upper auxiliary sliding groove; 43 - limiting plate; 44 - horizontal wedge block; 45 - vertical guide hole; 46 - vertical wedge block; 47 - electric cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-3 As shown, a street drainage manhole cover for sponge cities includes a hoop 100, with an annular placement groove formed at the top of the hoop. An upper manhole plate 200 is engaged in the annular placement groove. The upper manhole plate has several drainage holes 202. Several blind holes 2 are provided in the annular placement groove. A flexible spring 104 is installed in the blind hole. A horizontal guide hole 41 is formed on the inner wall of the hoop. Several elastic rods 31 are provided at the bottom of the upper manhole plate. Insert rods 32 are provided at the ends of the elastic rods. The insert rods cooperate with the horizontal guide holes. A triggering mechanism 4 is provided at the bottom of the hoop. The triggering mechanism can disengage the insert rods from the horizontal guide holes, thereby causing the flexible springs to push the upper manhole plate away from the annular placement groove, thus realizing the lifting and lowering of the upper manhole plate.

[0024] In at least one embodiment, the triggering mechanism includes an electric cylinder 47, a vertical wedge block 46, and a horizontal wedge block 44. The bottom of the hoop is provided with a vertical guide hole 45. The horizontal guide hole is connected to the vertical guide hole. A horizontal wedge block is slidably fitted in the horizontal guide hole, and a vertical wedge block is slidably fitted in the vertical guide hole. The wedge-shaped surface of the horizontal wedge block is engaged with the wedge-shaped surface of the vertical wedge block. The electric cylinder is fixedly connected to the bottom of the hoop. The telescopic rod of the electric cylinder is connected to the bottom of the vertical wedge block. The vertical upward movement of the telescopic rod of the electric cylinder can cause the vertical wedge block to squeeze the horizontal wedge block, causing the right end of the horizontal wedge block to squeeze the insertion rod, causing the insertion rod to disengage from the horizontal guide hole.

[0025] The top of the horizontal guide hole is provided with an upper auxiliary slide groove 42, and a limiting plate 43 is slidably fitted in the upper auxiliary slide groove. The limiting plate is fixedly connected to the horizontal wedge block. The design of the limiting plate can prevent the horizontal wedge block from falling from the horizontal guide hole into the hoop ring.

[0026] The insertion rod is provided with a collar 33, and a net bag 34 is connected to a plurality of collars. The net bag can be used to collect various pollutants mixed in with rainwater.

[0027] The flexible spring can drive the upper well plate away from the annular placement groove, so that rainwater from the outside can flow into the hoop ring.

[0028] The upper well plate middle part is embedded with a pull ring 201, and people can use a pull hook to lift the upper well plate.

[0029] The annular placement groove is provided with an outer positioning groove 301, and the upper well plate is provided with an outer positioning plate 302 matched with the outer positioning groove.

[0030] In at least one embodiment, the annular placement groove is provided with an annular sealing groove 105, and the annular sealing groove is provided with a sealing ring 1.

[0031] In the working mode, in the normal state, rainwater flows into the hoop through a plurality of water leakage holes on the upper well plate, realizing the street drainage function. The net bag can store various pollutants mixed in the rainwater.

[0032] When it is necessary to open the drainage well cover, the telescopic rod of the electric cylinder vertically moves upward. The telescopic rod drives the vertical wedge block to slide upward in the vertical guide hole, and the vertical wedge block extrudes the horizontal wedge block. The horizontal wedge block slides to the right in the horizontal guide hole, and the right end thereof extrudes the insertion rod, so that the insertion rod is separated from the horizontal guide hole. The flexible spring releases the elastic potential energy and pushes the upper well plate away from the annular placement groove, so that the external rainwater can flow more smoothly into the hoop. The electric cylinder can be a waterproof electric cylinder or be provided with a protective cover outside the electric cylinder, thereby prolonging the service life of the electric cylinder and reducing the cost.

[0033] If manual intervention is needed for the upper well plate, the pull ring embedded in the middle part of the upper well plate can be used to lift the upper well plate by using a pull hook for relevant operation.

[0034] The above description is only used to illustrate some principles of the utility model, and the specification is not intended to limit the utility model to the specific structure and application range shown, so all possible corresponding modifications and equivalents belong to the patent range applied by the utility model.

[0035] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art.

Claims

1. A street drainage well cover for sponge cities, comprising a hoop, wherein an annular groove is formed at the top of the hoop, and an upper well plate is engaged within the annular groove, characterized in that, The upper well plate is provided with several water leakage holes, the annular placement groove is provided with several blind holes, a flexible spring is installed in the blind hole, a horizontal guide hole is formed on the inner wall of the hoop, the bottom of the upper well plate is provided with several elastic rods, the end of the elastic rod is provided with an insertion rod, the insertion rod cooperates with the horizontal guide hole, and the bottom of the hoop is provided with a triggering mechanism, which controls the raising and lowering of the upper well plate.

2. The street drainage well cover for sponge cities according to claim 1, characterized in that, The triggering mechanism includes an electric cylinder, a vertical wedge block, and a horizontal wedge block. The bottom of the hoop is provided with a vertical guide hole, and the horizontal guide hole is connected to the vertical guide hole. A horizontal wedge block is slidably fitted in the horizontal guide hole, and a vertical wedge block is slidably fitted in the vertical guide hole. The wedge-shaped surface of the horizontal wedge block and the wedge-shaped surface of the vertical wedge block are engaged. The electric cylinder is fixedly connected to the bottom of the hoop ring, and the telescopic rod of the electric cylinder is connected to the bottom of the vertical wedge block.

3. The street drainage well cover for sponge cities according to claim 2, characterized in that, The telescopic rod of the electric cylinder moves vertically upward, causing the vertical wedge block to squeeze the horizontal wedge block. The right end of the horizontal wedge block squeezes the insertion rod, and the insertion rod disengages from the horizontal guide hole. Then, the flexible spring pushes the upper well plate away from the annular placement groove.

4. The street drainage well cover for sponge cities according to claim 2, characterized in that, The top of the horizontal guide hole is provided with an upper auxiliary slide groove, and a limiting plate is slidably fitted in the upper auxiliary slide groove. The limiting plate is connected to the horizontal wedge block.

5. The street drainage well cover for sponge cities according to claim 1, characterized in that, The insertion rod is provided with a collar, and a net bag is connected to multiple collars.

6. The street drainage well cover for sponge cities according to claim 1, characterized in that, A pull ring is embedded in the middle of the upper well plate.

7. The street drainage well cover for sponge cities according to claim 1, characterized in that, The annular placement groove is provided with an outer positioning groove, and the upper well plate is provided with an outer positioning plate that cooperates with the outer positioning groove.

8. The street drainage well cover for sponge cities according to claim 1, characterized in that, The annular placement groove is provided with an annular sealing groove, and the annular sealing groove is provided with a sealing ring.

9. The street drainage well cover for sponge cities according to claim 2, characterized in that, The electric cylinder is equipped with a protective cover.