Device for preventing catch basin from being blocked and preventing people from falling

By using a three-dimensional cage structure and a rainwater well anti-clogging and personnel fall prevention device with sound and light alarms, the problem of rainwater well covers being easily clogged and falling off has been solved, achieving efficient drainage and all-weather safety protection.

CN121497002APending Publication Date: 2026-02-10HEBEI GUOHUA CANGDONG POWER CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202610020239.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-08
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

Existing storm drain covers are easily washed away or blocked during heavy rain, leading to safety hazards and low drainage efficiency. They also cannot effectively prevent people from falling in during urban flooding.

Method used

Design a three-dimensional cage-like structure rainwater well anti-clogging and personnel fall prevention device. By using components such as the main support pole, connecting O-rings and pulleys, a four-sided vertical drainage channel is formed, and equipped with an audible and visual alarm mechanism to ensure all-weather warning and protection.

Benefits of technology

It significantly improves drainage efficiency, reduces manual cleaning costs, completely eliminates safety hazards, adapts to usage needs in different environments, and has a simple structure and low cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121497002A_ABST
    Figure CN121497002A_ABST
Patent Text Reader

Abstract

The invention discloses a catch basin anti-blocking and personnel falling prevention device, relates to the technical field of catch basin anti-blocking and safety protection, and aims at solving the problems that in extreme rainstorm weather, a catch basin is prone to blocking, the drainage efficiency is low, and the potential safety hazard of personnel falling exists when a well lid is opened for drainage. The device comprises a partition main vertical rod, a plurality of sets of connecting O-shaped rings, a sound-light alarm mechanism, a partition net, a pulley assembly and other core components, the anti-blocking function is achieved through the three-dimensional drainage structure design, and the anti-falling and all-weather warning functions are achieved through a cage type protection structure and a warning assembly. The device can switch forms according to daily and flood season scenes, is simple and reliable in structure, convenient to install, suitable for catch basins of different specifications, low in material cost and capable of being produced in batches, effectively improves the drainage efficiency of the catch basins and eliminates potential safety hazards.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of rainwater well anti-clogging technology, specifically a rainwater well anti-clogging and personnel fall prevention device. Background Technology

[0002] Stormwater wells are common urban drainage facilities. According to news reports and other channels, there are frequent accidents of people falling to their deaths due to heavy rain. Currently used stormwater well covers have certain safety hazards, especially during heavy rain. In order to quickly drain floodwater, many well covers are removed or washed away by rainwater backflow, leaving stormwater wells exposed and increasing the risk of people falling to their deaths.

[0003] For example, the Chinese authorized patent, CN112112251A (An Anti-clogging Rainwater Well), includes: a concrete mounting bracket, a guide column, a stabilizing bracket, a grate, a lifting rod, a connecting rod, a connecting pin, a cleaning blade, a cleaning bracket, a rainwater well, a diversion pipe, a sludge tank, a support bracket, a communicating vessel, and a warning frame. The concrete mounting bracket and the rainwater well are installed vertically, as are the grate and the cleaning bracket. The rainwater well frame is equipped with a diversion pipe, and the sludge tank is connected to the communicating vessel. A warning frame is connected to the end of the communicating vessel. In this anti-clogging rainwater well, when the grate's drainage hole becomes clogged, the lifting rod is operated, the connecting pin connects to the cleaning bracket, and the rod is pulled upwards. The cleaning blade cleans the impurities from the drainage hole, which fall into the sludge tank. Sewage is discharged through the diversion pipe, and sludge settles to the bottom of the tank. When the communicating vessel receives sufficient downward pressure from the sludge tank, the red hydraulic oil in the communicating pipe moves to the end of the communicating pipe, alerting workers to clean the sludge.

[0004] In recent years, there have been more and more incidents of short-term flooding and severe water accumulation in cities and businesses caused by extreme rainstorms. At present, there are no ready-made products on the market to prevent blockage and fall of rainwater wells. When urban flooding and large-scale water accumulation occur, drainage is usually carried out by using the holes in the sewer grid cover itself or by lifting the rainwater well cover.

[0005] After urban flooding occurs, drainage is typically carried out using the holes in the sewer grid covers or by opening the storm drain covers. However, sewer grid covers are easily clogged by debris such as fallen leaves and packaging bags in the water during drainage, requiring dedicated personnel for cleaning. This process is extremely labor-intensive and does not guarantee efficient drainage. Furthermore, while opening storm drain covers can effectively improve drainage efficiency, it poses a significant safety hazard when storm drains are opened during severe flooding or at night when lighting conditions are poor. This solution proposes a novel device that addresses the problems of easily clogged storm drain covers during extreme rainstorms and flooding, as well as the safety hazards associated with opening storm drain covers for drainage operations. It effectively improves drainage efficiency and eliminates the risk of people falling into storm drains. Therefore, to meet existing needs, we propose a storm drain anti-clogging and anti-fall device. Summary of the Invention

[0006] The purpose of this invention is to provide a device for preventing blockages in rainwater wells and preventing people from falling in, so as to solve the existing problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a device for preventing blockage and falls in rainwater wells, comprising: a partition main upright, wherein a plurality of partition main uprights are provided;

[0008] A first connecting O-ring is provided around the outer edge of the upper end of several partition main uprights, and a third connecting O-ring is provided below the outer edge of several partition main uprights. An embedded support cavity is provided inside both sides of the upper end face of the third connecting O-ring, and there are two embedded support cavities. Both embedded support cavities are integrally formed with the third connecting O-ring.

[0009] The inner wall of the third connecting O-ring is provided with a third embedded groove, and there are several third embedded grooves. Each of the several third embedded grooves is provided with an inner cavity, and there are several inner cavities. Each of the several inner cavities is provided with a pulley. Each pulley is provided with a connecting end on both sides. Each connecting end is elastically connected to the inner wall of the inner cavity through a telescopic connecting rod. The connecting end rotates with the pulley through a rotating shaft.

[0010] Preferably, an embedded sliding cavity is provided on one side of the lower outer wall of several of the partition main uprights, and a fixed cavity is provided inside the embedded sliding cavity. Both the embedded sliding cavity and the fixed cavity are integrally formed with the partition main upright.

[0011] Preferably, an embedded mounting cavity is provided on one side of the outer wall of several of the partition main uprights. Two embedded mounting cavities can form a pair. A partition net can be provided between each pair of embedded mounting cavities, and the partition net and the embedded mounting cavity can be detachably installed.

[0012] Preferably, the inner wall of the first connecting O-ring is provided with a first embedded groove, and there are several first embedded grooves. The upper ends of several partition main uprights are installed at the positions of the first embedded grooves and are welded together.

[0013] Preferably, a first connecting reinforcing rod is provided inside the first connecting O-ring, both ends of the first connecting reinforcing rod are welded to the inner wall of the first connecting O-ring, an audible and visual alarm mechanism is provided at the upper end of the first connecting reinforcing rod, and a battery cover is provided on the outer wall of the lower end face of the audible and visual alarm mechanism.

[0014] Preferably, a second connecting O-ring is provided at the middle position of the outer wall of several partition main uprights. A second embedded groove is provided inside the inner wall of the second connecting O-ring, and several second embedded grooves are provided, each of which is integrally formed with the inner wall of the second connecting O-ring.

[0015] Preferably, several of the partition main uprights are welded to the second connecting O-ring via a second inner groove.

[0016] Preferably, two embedded support cavities are provided on both sides of the upper end face of the third connecting O-ring, and the two embedded support cavities are integrally formed with the two sides of the upper end face of the third connecting O-ring.

[0017] Preferably, two external connecting rods are provided on the front and rear sides of the outer wall of the first connecting O-ring. One end of each external connecting rod is threaded and rotatably connected to the front and rear sides of the outer wall of the first connecting O-ring. The other end of each external connecting rod is provided with a handle, and the handle is fixed to the other end of the external connecting rod.

[0018] Preferably, a fourth connecting O-ring is provided around the lower outer side of the plurality of partition main uprights, and a fourth inner groove is provided inside the inner wall of the fourth connecting O-ring. The plurality of partition main uprights are installed at the position of the fourth inner groove and are welded together. A second connecting reinforcing rod is provided inside the fourth connecting O-ring, and a plurality of the second connecting reinforcing rods are provided.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The invention has a significant anti-clogging effect: By optimizing the drainage surface into a four-sided vertical drainage through a three-dimensional cage structure, the drainage area is greatly increased compared with the traditional flat cover plate. The vertical structure can avoid floating debris from attaching and clogging, effectively improving the drainage efficiency under extreme rainstorm weather, reducing manual cleaning costs, and solving the problems of easy clogging and poor drainage of existing rainwater well covers.

[0021] 2. Reliable fall protection: The three-dimensional cage structure provides all-round protection for the rainwater well opening. Even if the well cover is lifted to drain water or the well cover is washed away, it can effectively prevent people and vehicles from falling in, completely eliminating the safety hazards caused by exposed rainwater wells in heavy rainfall and water accumulation.

[0022] 3. All-weather warning compatibility: The combination design of the sound and light alarm mechanism and the reflective strip adapter structure ensures that the device has a good warning effect in low visibility environments such as night and dark, adapting to the needs of all-weather drainage operations and further improving the safety of use.

[0023] 4. Simple structure and strong practicality: The device achieves quick switching between two states through components such as pulleys and telescopic connecting rods, making it easy to operate and deploy quickly; the welded connection between each connecting O-ring and the main upright of the partition ensures reliable structural strength, and the detachable partition net facilitates maintenance; the overall structure of the device is simple, and it can be mass-produced using ordinary steel, resulting in low cost and suitability for large-scale promotion and application.

[0024] 5. Wide adaptability: The device size is compatible with standard rainwater well covers, and the material and shape can be adjusted according to different rainwater well outlet shapes and operating environments to meet the usage needs of different scenarios such as urban roads and corporate parks. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a top view of the structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the inner wall of the third connecting O-ring of the present invention;

[0028] Figure 4 This is a partial structural diagram of the embedded sliding cavity of the present invention;

[0029] Figure 5 This is a partial structural diagram of the embedded mounting cavity of the present invention;

[0030] In the diagram: 100, main support pole for partition; 1001, embedded sliding cavity; 10011, fixed cavity; 1002, embedded mounting cavity; 200, first connecting O-ring; 2001, first embedded groove; 201, first connecting reinforcing rod; 202, outer connecting rod; 20201, handle; 300, second connecting O-ring; 3001, second embedded groove; 400, third connecting O-ring; 4001, third embedded groove; 4002, inner cavity; 4003, embedded support cavity; 401, pulley; 402, connecting end; 403, rotating shaft head; 404, telescopic connecting rod; 500, fourth connecting O-ring; 5001, fourth embedded groove; 501, second connecting reinforcing rod; 600, audible and visual alarm mechanism; 601, battery cover; 700, partition mesh. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0033] Please see Figure 1-5 The present invention provides an embodiment of a rainwater well anti-clogging and personnel fall prevention device, the installation and use process of which is as follows:

[0034] Device installation: The device is fitted and installed on a standard-sized rainwater well opening. The third connecting O-ring 400 is secured in the groove of the rainwater well cover to ensure a stable installation and prevent displacement by rainwater. The fourth connecting O-ring 500 works with the second connecting reinforcing rod 501 to further enhance the structural strength and installation stability of the device bottom, adapting to the installation requirements of rainwater wells of different specifications.

[0035] State Switching: This device operates in two states depending on the usage scenario. Switching between these states is achieved via the handle 20201 and the external connecting rod 202, making operation convenient and requiring no complex tools.

[0036] In normal, non-flood season conditions: On sunny or lightly rainy days, when high-intensity drainage is not required, the entire device is pressed downwards. Under the elastic action of the telescopic connecting rod 404, the pulley 401 in the inner cavity 4002 of the third inner groove 4001 on the inner wall of the third connecting O-ring 400 moves out of the fixed cavity 10011 within the inner sliding cavity 1001 of the partition main upright 100, causing the partition main upright 100 to move downwards. Finally, the outer connecting rod 202 is embedded into the inner supporting cavity 4003 to complete its position fixation. In this state, the overall height of the device is reduced, minimizing exposed volume and preventing damage from external objects. Simultaneously, the partition mesh 700 can block larger debris from entering the rainwater well, providing basic filtration.

[0037] During the flood season, when there is a high risk of extreme rainstorms and urban flooding, staff can lift the first connecting O-ring 200 upwards by pulling the handle 20201. Since the partition main upright 100 is welded to the first connecting O-ring 200 through the first inner groove 2001, several partition main uprights 100 can be moved upwards synchronously until the pulley 401 inside the inner cavity 4002 of the third inner groove 4001 on the inner wall of the third connecting O-ring 400 is locked in the fixed cavity 10011 inside the inner sliding cavity 1001 under the elastic reset action of the telescopic connecting rod 404, thus completing the limit fixation. At this time, the partition main upright 100, the first connecting O-ring 200, the second connecting O-ring 300, the third connecting O-ring 400, and the fourth connecting O-ring 500 together form a three-dimensional cage structure, creating a protective space around and inside the rainwater well opening. The first connecting O-ring 200, the second connecting O-ring 300, the third connecting O-ring 400, and the fourth connecting O-ring 500 can be welded to the partition main upright 100 through the first inner groove 2001, the second inner groove 3001, the third inner groove 4001, and the fourth inner groove 5001, respectively.

[0038] Anti-clogging function achieved: During the flood season, the three-dimensional structure formed by the device changes the drainage surface from the traditional flat type to a vertical three-dimensional type. The gaps between the main partition poles 100 and the detachable partition net 700 create drainage channels on all four sides, greatly increasing the drainage contact area. Compared with traditional flat covers, the vertically set main partition poles 100 and partition net 700 are less prone to clogging by floating debris such as fallen leaves and packaging bags. Rainwater can quickly flow into the rainwater well through the surrounding facades, effectively improving drainage efficiency. It eliminates the need for constant cleaning of debris, reducing manpower and material consumption.

[0039] Fall prevention and warning functions are achieved: The three-dimensional cage structure itself forms a protective barrier, so even if the rainwater well cover is lifted or washed away, personnel and vehicles will not fall directly into the rainwater well, thus eliminating the risk of falling from the structure. At the same time, the sound and light alarm mechanism 600 on the first connecting reinforcement rod 201 inside the first connecting O-ring 200 can be automatically activated or manually triggered in low light conditions such as at night or on cloudy days to emit sound and light warning signals. Because the second embedded groove 3001 is welded to the partition main upright 100, when the equipment is pulled out as a whole, the reflective strip adapter structure that can be added to the outer wall of the first connecting O-ring 200 and the second connecting O-ring 300 further improves the visibility of the device and ensures the safety of drainage operations in all weather conditions.

[0040] Maintenance and Adaptation: The partition net 700 and the embedded installation cavity 1002 are detachable. When the partition net 700 is damaged or has a small amount of stubborn debris attached, it can be quickly disassembled, replaced, or cleaned. The material used for the device can be ordinary steel, which is inexpensive. It can also be replaced with other metal or non-metal materials according to different working environments, such as areas with strong corrosion. The shape of the device can be adapted and adjusted according to the shape of different rainwater well outlets, making it widely applicable. The battery cover 601 at the bottom of the audible and visual alarm mechanism 600 facilitates battery replacement and ensures that the warning function is continuously effective.

[0041] Working principle: The entire device is installed at the drain opening. The third connecting O-ring 400 is effectively installed on the upper side of the support wall of the drain opening. The device can be set to two states. In the first state, under normal sunny conditions, the entire device can be pressed downwards, causing the pulley 401 in the inner cavity 4002 of the third inner groove 4001 of the inner wall of the third connecting O-ring 400 to move out of the fixed cavity 10011 in the inner sliding cavity 1001. This allows the main support rod 100 to move downwards, and its position is finally fixed by the outer connecting rod 202 of the first connecting O-ring 200 embedded in the inner support cavity 4003. This state prevents the entire device from being excessively exposed to the outside when not in use, thus avoiding damage from impacts by foreign objects. The second state can be set to a larger position. When changing form during rainy weather, from the first state to the second state, the operator can pull the first connecting O-ring 200 upwards using handle 20201, thereby lifting the entire partition main support 100 upwards. Finally, the pulley 401 inside the inner cavity 4002 of the third inner groove 4001 of the inner wall of the third connecting O-ring 300 can be locked into the fixed cavity 10011 inside the inner sliding cavity 1001 for limiting and fixing. This allows the partition main support 100 to isolate the area around the drain opening, effectively preventing foreign objects from flowing into the drain pipe with rainwater during heavy rain and other rainy days, thus preventing blockage of the drain pipe. The connecting end 402, rotating shaft head 403, and telescopic connecting rod 404 can move the position of the partition main support 100 and the third connecting O-ring 400.

[0042] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0043] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0044] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A device for preventing blockage and falls into rainwater wells, characterized in that: include: A partition main upright (100) is provided, and several partition main uprights (100) are provided; A first connecting O-ring (200) is provided around the outer edge of the upper end of several partition main uprights (100), and a third connecting O-ring (400) is provided below the outer edge of several partition main uprights (100). An embedded support cavity (4003) is provided inside both sides of the upper end face of the third connecting O-ring (400), and there are two embedded support cavities (4003). Both embedded support cavities (4003) are integrally formed with the third connecting O-ring (400). The inner wall of the third connecting O-ring (400) is provided with a third inner groove (4001), and there are several third inner grooves (4001). Each of the several third inner grooves (4001) is provided with an inner cavity (4002), and there are several inner cavities (4002). Each of the several inner cavities (4002) is provided with a pulley (401). Each pulley (401) has a connecting end (402) on both sides. Each connecting end (402) is elastically connected to the inner wall of the inner cavity (4002) through a telescopic connecting rod (404). The connecting end (402) rotates with the pulley (401) through a rotating shaft (403).

2. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: An embedded sliding cavity (1001) is provided on one side of the lower outer wall of several partition main uprights (100). A fixed cavity (10011) is provided inside the embedded sliding cavity (1001). Both the embedded sliding cavity (1001) and the fixed cavity (10011) are integrally formed with the partition main uprights (100).

3. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: An embedded mounting cavity (1002) is provided on one side of the outer wall of several partition main uprights (100). Two embedded mounting cavities (1002) can form a pair. A partition net (700) can be provided between each pair of embedded mounting cavities (1002), and the partition net (700) and the embedded mounting cavity (1002) can be detachably installed.

4. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: The inner wall of the first connecting O-ring (200) is provided with a first inner groove (2001), and there are several first inner grooves (2001). The upper ends of several partition main uprights (100) are installed at the positions of the first inner grooves (2001) and are welded together.

5. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: The first connecting O-ring (200) is provided with a first connecting reinforcing rod (201) inside. Both ends of the first connecting reinforcing rod (201) are welded to the inner wall of the first connecting O-ring (200). The upper end of the first connecting reinforcing rod (201) is provided with an audible and visual alarm mechanism (600). The outer wall of the lower end face of the audible and visual alarm mechanism (600) is provided with a battery cover (601).

6. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: A second connecting O-ring (300) is provided at the middle position of the outer wall of several partition main uprights (100). A second inner groove (3001) is provided inside the inner wall of the second connecting O-ring (300), and several second inner grooves (3001) are provided. All several second inner grooves (3001) are integrally formed with the inner wall of the second connecting O-ring (300).

7. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: Several of the partition main uprights (100) are welded to the second connecting O-ring (300) through the second inner groove (3001).

8. The rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: The upper surface of the third connecting O-ring (400) is provided with two embedded support cavities (4003) on both sides, and there are two embedded support cavities (4003). The two embedded support cavities (4003) are integrally formed with the upper surface of the third connecting O-ring (400).

9. A rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: The first connecting O-ring (200) has two external connecting rods (202) on its front and rear sides. One end of each external connecting rod (202) is threaded and rotatably connected to the front and rear sides of the outer wall of the first connecting O-ring (200). The other end of each external connecting rod (202) is provided with a handle (20201), and the handle (20201) is fixed to the other end of the external connecting rod (202).

10. A rainwater well anti-clogging and personnel fall prevention device according to claim 1, characterized in that: A fourth connecting O-ring (500) is provided around the outer side of the lower end of several partition main uprights (100). A fourth inner groove (5001) is provided inside the inner wall of the fourth connecting O-ring (500). Several partition main uprights (100) are installed at the position of the fourth inner groove (5001) and welded together. A second connecting reinforcing rod (501) is provided inside the fourth connecting O-ring (500), and several second connecting reinforcing rods (501) are provided.

Citation Information

Patent Citations

  • Anti-blocking type catch-basin

    CN112112251A