Safe automatic rainwater drainage circular rainwater inspection well
By employing a limiting structure and sealing ring design in the rainwater inspection well, combined with aramid braided rope and netting, the problems of overflow and blockage of the well cover are solved, achieving safe drainage and leak prevention, and ensuring the stability and safety of the drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU PANYU BENDA CEMENT PROD CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-07-07
AI Technical Summary
Existing rainwater inspection wells are prone to detachment due to overflowing water during heavy rainfall, posing a safety hazard and failing to effectively prevent blockages, resulting in poor drainage.
A safe and automatic rainwater drainage inspection well was designed, which adopts a well cover limiting structure and sealing ring design, combined with aramid braided rope and net to ensure the well cover is fixed and prevent water overflow. At the same time, impurities are filtered through the filter screen to achieve leakage prevention and safe drainage.
It effectively prevents manhole covers from detaching, improves safety, prevents water overflow, ensures smooth drainage, and filters impurities through a filter screen to enhance drainage efficiency.
Smart Images
Figure CN224468529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater inspection wells, and in particular to a safe and automatically increasing rainwater discharge circular rainwater inspection well. Background Technology
[0002] In recent years, major cities have suffered severe flooding during heavy rainfall, making underground water pipes increasingly important in municipal construction. Inspection wells need to be installed at regular intervals along these pipes.
[0003] A search revealed a utility model patent in China with publication number CN211368951U, disclosing a stormwater inspection well for municipal roads, belonging to the field of underground drainage. The well includes a well body and a cover. A cage-shaped filter screen is installed inside the well, and a slide rail is vertically arranged inside the well body. A T-shaped groove is formed along the length of the slide rail, and a T-shaped slider is provided on the side wall of the cage-shaped filter screen to slide in conjunction with the T-shaped groove. This utility model can promptly remove sludge and debris from the well, preventing blockages and thus enhancing drainage efficiency.
[0004] The above-mentioned patents have solved the problem of the well body not being easily blocked, but they have not addressed the safety of the well cover. This makes it easy for the well cover to overflow due to excessive rainwater, causing it to detach from the well body. At the same time, there is no protective structure inside, which makes it easy for pedestrians or debris to fall into the well, creating a safety hazard. Therefore, a safe and automatic rainwater drainage circular rainwater inspection well is proposed. Utility Model Content
[0005] Based on this, it is necessary to address the technical problem of manhole covers overflowing due to excessive rainwater, causing them to detach from the manhole body. This necessitates providing a safe, automatically draining circular rainwater inspection manhole, comprising: an inspection manhole body and a pipe. The upper surface of the inspection manhole body has an installation groove, and the periphery of the installation groove has several equidistant limiting grooves. A manhole cover body is installed within the installation groove. The periphery of the manhole cover body has several equidistant movable grooves, and the manhole cover body has a pull groove. The upper surface of the manhole cover body has an operating groove, and a spring is fixedly connected to one side of the inner wall of each movable groove. The spring... A pull plate is fixedly connected to one end of the manhole. A limit block is fixedly connected to one side of the pull plate, and a pull rope is fixedly connected to one side of the pull plate. A mounting frame is fixedly connected to the inner wall of the manhole body. A fixing frame is fixedly connected to the upper surface of the mounting frame by bolts. A net is fixedly connected inside the fixing frame. An outer mounting ring is provided on the circumferential side of the manhole body. A slot is opened on one side of the outer mounting ring. A sealing groove is opened on the inner wall of the slot. A first sealing ring is provided in the sealing groove. Several threaded holes are opened on the circumferential side of the outer mounting ring. A mounting screw is threaded into the threaded holes.
[0006] In one embodiment, the shape and size of the manhole cover body are adapted to the installation groove, the movable groove is connected to the limiting groove, and four sets of both the limiting groove and the movable groove are provided. The pull groove is connected to the movable groove.
[0007] In one embodiment, the shape and size of the pull plate are adapted to the movable groove, the pull rope is disposed inside the pull groove, the operating groove communicates with the pull groove, and the shape and size of the limiting block are adapted to the limiting groove.
[0008] In one embodiment, the pipe is shaped and sized to fit the slot, the pipe is fixedly connected to the mounting outer ring by mounting screws, the first sealing ring is shaped and sized to fit the sealing groove, and the filter screen is fixedly connected to the mounting ring by bolts.
[0009] In one embodiment, the pull plate slides into the movable groove, and the limiting block is a trapezoidal plate structure that is engaged with the limiting groove.
[0010] In operation, the aforementioned safe and automatic rainwater drainage circular inspection well aligns the well cover body with the installation groove and inserts it into the groove. During the downward pressing process, the limiting block abuts against the edge of the installation groove, causing it to retract into the movable groove. A spring is then compressed by a pull plate. When the well cover body is fully inserted into the installation groove, the spring rebounds, securing the limiting block into the limiting groove. The pull rope is made of aramid braided rope, offering high cut resistance and corrosion resistance. The mesh is also made of aramid braid and is primarily used for protection in foundation pits and high-altitude areas, improving safety and preventing the well cover from detaching from the well body due to excessive rainwater overflow. The pipe is inserted into the slot, and the first sealing ring is fixed to the outer ring via installation screws. The first sealing ring adheres to the inner wall of the pipe, and its diameter is smaller than the pipe's inner diameter, facilitating the leak-proof connection between the rainwater inspection well and the concrete pipe. A filter screen is installed within the installation ring using bolts, allowing for the filtration of impurities in the rainwater. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a circular rainwater inspection well with automatic rainwater drainage in one embodiment;
[0012] Figure 2 This is a front view of a circular rainwater inspection well with automatic rainwater drainage in one embodiment;
[0013] Figure 3 In one embodiment Figure 2 Cross-sectional view of section AA;
[0014] Figure 4 In one embodiment Figure 3Enlarged view of section B;
[0015] Figure 5 In one embodiment Figure 3 Enlarged view of section C. Detailed Implementation
[0016] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0021] Please refer to the following: Figures 1 to 5 This utility model provides a safe and automatic circular rainwater inspection well for increasing rainwater drainage, including: an inspection well body 1 and a pipe 2. The upper surface of the inspection well body 1 is provided with an installation groove 100. Several limiting grooves 10 are equally spaced on the circumference of the installation groove 100. A manhole cover body 12 is installed in the installation groove 100. Several movable grooves 120 are equally spaced on the circumference of the manhole cover body 12. A pull groove 121 is provided in the manhole cover body 12. An operation groove 126 is provided on the upper surface of the manhole cover body 12. A spring 124 is fixedly connected to one side of the inner wall of the movable groove 120. A pull plate 122 is fixedly connected to the free end of the spring 124. A limiting block 123 is fixedly connected to one side of the pull plate 122. A pull rope 125 is fixedly connected to one side of the pull plate 122. An installation frame 101 is fixedly connected to the inner wall of the inspection well body 1. A fixing frame 102 is fixedly connected to the upper surface of the installation frame 101 by bolts. A net 103 is fixedly connected inside the fixing frame 102.
[0022] Furthermore, an outer mounting ring 11 is provided on the side of the inspection well body. A slot 110 is provided on one side of the outer mounting ring 11. A sealing groove 1100 is provided on the inner wall of the slot 110. A first sealing ring 112 is provided in the sealing groove 1100. Several threaded holes 111 are provided on the side of the outer mounting ring 11. A mounting screw 1110 is threaded into the threaded holes 111.
[0023] Furthermore, the shape and size of the manhole cover body 12 are adapted to the installation groove 100, the movable groove 120 is connected to the limiting groove 10, and both the limiting groove 10 and the movable groove 120 are provided with four sets, the pull groove 121 is connected to the movable groove 120, the shape and size of the pull plate 122 are adapted to the movable groove 120, the pull rope 125 is set inside the pull groove 121, the operation groove 126 is connected to the pull groove 121, and the shape and size of the limiting block 123 are adapted to the limiting groove 10.
[0024] Furthermore, the shape and size of the pipe 2 are adapted to the slot 110, the pipe 2 is fixedly connected to the mounting outer ring 11 by the mounting screw 1110, the shape and size of the first sealing ring 112 are adapted to the sealing groove 1100, and the filter screen 114 is fixedly connected to the mounting ring 113 by bolts.
[0025] Furthermore, the pull plate 122 slides with the movable groove 120, the limiting block 123 is a trapezoidal plate structure, the limiting block 123 is snapped into the limiting groove 10, and two sets of handles are symmetrically arranged on the upper surface of the fixing frame 102, the handles are "T" shaped.
[0026] It should be noted that during operation, the aforementioned safe and automatic rainwater drainage circular inspection well aligns the well cover body 12 with the mounting groove 100 and inserts the well cover body 12 into the mounting groove 100. During the downward pressing of the well cover body 12, the limiting block 123 abuts against the edge of the mounting groove 100. The limiting block 123 retracts under force into the movable groove 120 and is then compressed by the pull plate 122 against the spring 124. When the well cover body 12 is fully inserted into the mounting groove 100, the spring 124 rebounds, causing the limiting block 123 to engage with the limiting groove 10, thus completing the fixation. The pull rope 125 is an aramid blended rope, which has high cut resistance and corrosion resistance. The net 103 is made of aramid woven material and is mainly used for protection in foundation pits and high-altitude areas, thereby improving safety and preventing the well cover from overflowing due to excessive rainwater. This allows the manhole cover to detach from the manhole body. The net 103 can protect pedestrians and intercept some debris. The net 103 can also be pulled out for cleaning via the handle. The pipe 2 is inserted into the slot 110, and the first sealing ring 112 is fixed to the outer ring 11 by the mounting screw 1110. The first sealing ring 112 fits against the inner wall of the pipe 2, and the diameter of the first sealing ring 112 is smaller than the inner diameter of the pipe 2, thus facilitating the anti-leakage function of the connection structure between the rainwater inspection well and the concrete pipe. The filter screen 114 is installed in the mounting ring 113 by bolts, thus filtering impurities from the rainwater. The spring 124 is made of stainless steel, and the limiting block 123 is made of cast iron. The surfaces of the spring 124 and the limiting block 123 are treated with anti-rust.
[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A safe and automatically draining circular rainwater inspection well, characterized in that, include: The manhole includes a manhole body and a pipeline. The upper surface of the manhole body has an installation groove. Several limiting grooves are equidistantly spaced on the periphery of the installation groove. A manhole cover body is installed within the installation groove. Several movable grooves are equidistantly spaced on the periphery of the manhole cover body. A pull groove is formed inside the manhole cover body. An operating groove is formed on the upper surface of the manhole cover body. A spring is fixedly connected to one side of the inner wall of the movable groove. A pull plate is fixedly connected to the free end of the spring. A limiting block is fixedly connected to one side of the pull plate. A pull rope is fixedly connected to one side of the pull plate. An installation frame is fixedly connected to the inner wall of the manhole body. A fixing frame is fixedly connected to the upper surface of the installation frame by bolts. A net is fixedly connected inside the fixing frame. An outer installation ring is connected to the periphery of the manhole body. A slot is formed on one side of the outer installation ring.
2. The safe and automatic rainwater drainage circular inspection well according to claim 1, characterized in that, The inner wall of the slot is provided with a sealing groove, and a first sealing ring is provided in the sealing groove. The outer circumferential side of the mounting ring is provided with a plurality of threaded holes, and a mounting screw is threaded into the threaded holes.
3. A safe and automatic rainwater drainage circular inspection well according to claim 1, characterized in that, The shape and size of the manhole cover body are adapted to the installation groove, and the movable groove is connected to the limiting groove.
4. A safe and automatic rainwater drainage circular inspection well according to claim 3, characterized in that, The limiting groove and the movable groove are each provided with four sets, and the pull groove is connected to the movable groove.
5. A safe and automatic rainwater drainage circular inspection well according to claim 4, characterized in that, The shape and size of the pull plate are adapted to the movable groove, and the pull rope is set inside the pull groove.
6. A safe and automatic rainwater drainage circular inspection well according to claim 5, characterized in that, The operating groove is connected to the pull groove, and the shape and size of the limiting block are adapted to the limiting groove.
7. A safe and automatic rainwater drainage circular inspection well according to claim 2, characterized in that, The shape and size of the pipe are adapted to the slot, and the pipe is fixedly connected to the mounting outer ring by mounting screws.
8. A safe and automatic rainwater drainage circular inspection well according to claim 7, characterized in that, The shape and size of the first sealing ring are adapted to the sealing groove, and the filter screen is fixedly connected to the mounting ring by bolts.
9. A safe and automatic rainwater drainage circular inspection well according to claim 6, characterized in that, The pull plate slides into the movable groove, and the limiting block has a trapezoidal plate structure.
10. A safe and automatic rainwater drainage circular inspection well according to claim 9, characterized in that, The limiting block and the limiting slot are fitted together.