Urban catch basin safety warning device
By using a mother float and a daughter float structure, combined with a limiting rope and a vibration and light-emitting device, the safety hazard caused by the detachment of urban storm drain covers has been solved, and automatic warning and anti-fall functions have been achieved, thus improving the safety of urban storm drains.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-14
AI Technical Summary
During heavy rain, manhole covers in urban storm drains are prone to detachment or overturning, posing safety hazards. Existing technology makes it difficult to quickly identify and install warning facilities, leading to frequent accidents of pedestrians or vehicles falling into manholes.
It adopts a structure of a mother float and a daughter float, which are connected to the well wall and well cover by a limiting rope. It uses water level changes to automatically warn, and combined with a vibration light device and a fall prevention net, it can realize automatic warning and avoid manual intervention.
It enables automatic warnings when rainwater backflows, eliminating safety hazards caused by manhole covers detaching, reducing the need for manual identification and installation of warning facilities, and improving safety.
Smart Images
Figure CN224123005U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rainwater well warning facilities, and in particular to a safety warning device for urban rainwater wells. Background Technology
[0002] Currently, urban storm drains are the most visible part of the entire drainage system, widely distributed throughout the city. During the rainy season, urban drainage systems bear the greatest responsibility for drainage and flood control. Storm drains located in low-lying areas are subjected to the impact of high-volume rainwater, which can cause rainwater to backflow out of the drain opening. Depending on the intensity of the rain, the manhole cover may be blown away from the opening or even completely flipped open. The loss of the manhole cover's closure poses a significant safety hazard. Moreover, in heavy rain, visibility is poor due to flooded roads, making it extremely easy for pedestrians or vehicles to fall into the manhole.
[0003] The solution in related technologies is for maintenance teams to manually identify backflow wells in low-lying areas, fence off wells whose covers have been washed away from the well opening or even completely overturned, and install warning lights. However, urban rainwater systems are widespread and cover a huge area, making it difficult to quickly and completely identify rainwater wells with safety hazards. Utility Model Content
[0004] The purpose of this application is to provide a safety warning device for urban storm drains to solve the problem that maintenance teams need to manually identify backflow wells in low-lying areas, fence off storm drains whose covers have been washed away from the well opening or even completely overturned, and install warning lights. However, urban storm drain systems are widespread and cover a huge area, making it difficult to quickly and completely identify storm drains with safety hazards.
[0005] The technical solution for a safety warning device for urban storm drains provided in this application is as follows:
[0006] A safety warning device for urban storm drains includes a mother float and a daughter float. A first limiting rope is connected to the outside of the mother float via a first fixing member, and one end of the first limiting rope is connected to the wall of the storm drain. A second limiting rope is connected to the outside of the daughter float via a second fixing member, and one end of the second limiting rope is connected to the manhole cover.
[0007] Furthermore, the first fixing member is a first fixing ring, and one end of the first limiting rope is tied to the first fixing ring.
[0008] Furthermore, the second fixing member is a second fixing ring, and one end of the second limiting rope is tied to the second fixing ring.
[0009] Furthermore, the binding end between the first limiting rope and the well wall of the rainwater well is at the farthest distance from the binding end between the second limiting rope and the well cover, and the end of the second limiting rope away from the second fixing ring is connected to the opening side of the well cover.
[0010] Furthermore, both the first limiting rope and the second limiting rope are fitted with soft rope sleeves.
[0011] Furthermore, the mother float and the daughter float are equipped with vibration-emitting devices inside.
[0012] Furthermore, the vibration-emitting device includes a light-emitting diode and a vibration switch, wherein the light-emitting diode and the vibration switch are electrically connected to each other.
[0013] Furthermore, an anti-fall net is provided inside the wellhead of the rainwater well, and the mother float and the daughter float are placed inside the anti-fall net.
[0014] Compared with the prior art, the beneficial effects of this application are as follows:
[0015] By setting up a structure in which the mother float, the first fixing component, the first limiting rope, the daughter float, the second fixing component, and the second limiting rope work together, an automatic warning effect can be achieved when the manhole cover detaches from the rainwater well due to backflow. At the same time, no manual identification or intervention is required throughout the process, thereby eliminating the safety hazards of people or vehicles falling into the rainwater well caused by backflow of rainwater. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of the urban storm drain safety warning device according to an embodiment of this application.
[0017] Figure 2 This is a schematic diagram of the structure of the first fixing ring, the vibration and light-emitting device, and the soft rope loop in the embodiment of this application.
[0018] Figure 3 This is a schematic diagram of the structure of the second fixing ring, the vibration and light-emitting device, and the soft rope loop in the embodiment of this application.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Female buoy; 11. First fixing ring; 2. First limiting rope; 3. Female buoy; 31. Second fixing ring; 4. Second limiting rope; 5. Rainwater well; 6. Well cover; 7. Soft rope sleeve; 8. Light-emitting diode; 9. Vibration switch; 10. Fall protection net. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0022] This application discloses a safety warning device for urban storm drains, referring to... Figure 1 and Figure 2 In this embodiment, the urban storm drain safety warning device includes a main float 1, a first fixing member, a first limiting rope 2, a secondary float 3, a second fixing member, and a second limiting rope 4. The outer wall of the main float 1 is connected to the first limiting rope 2 via the first fixing member, and the end of the first limiting rope 2 away from the main float 1 is fixedly connected to the inside of the storm drain 5 wall. Specifically, the first fixing member is a first fixing ring 11, which is fixedly installed on the outer wall of the main float 1, and one end of the first limiting rope 2 is fixedly tied to the first fixing ring 11.
[0023] Meanwhile, a well wall limiting ring is installed inside the well wall of the rainwater well 5. The end of the first limiting rope 2 away from the mother float 1 is fixedly tied to the well wall limiting ring. In this way, the mother float 1 is stably connected to the well wall of the rainwater well 5 through the connection structure of the first limiting rope 2, the first fixing member and the well wall limiting ring.
[0024] And refer to Figure 1 and Figure 3 In this embodiment, the outer wall of the sub-buoy 3 is connected to a second limiting rope 4 by a second fixing member. The end of the second limiting rope 4 away from the sub-buoy 3 is fixedly connected to the bottom of the manhole cover 6. Specifically, the second fixing member is a second fixing ring 31, which is fixedly installed on the outer wall of the sub-buoy 3, and one end of the second limiting rope 4 is fixedly tied to the second fixing ring 31.
[0025] Meanwhile, a manhole cover limiting ring is installed at the bottom of the manhole cover 6, and the end of the second limiting rope 4 away from the sub-buoy 3 is fixedly tied to the manhole cover limiting ring. In this way, the sub-buoy 3 is stably connected to the bottom of the manhole cover 6 through the connection structure of the second limiting rope 4, the second fixing member and the manhole cover limiting ring.
[0026] Preferably, in practical applications, since the mother float 1 and the daughter float 3 are always inside the rainwater well 5 regardless of whether there is rain or not, and are required to be effective in case of rainwater backflow, the first limiting rope 2 on the mother float 1 and the second limiting rope 4 on the daughter float 3 must not be tangled or knotted under any circumstances. Otherwise, the mother float 1 and the daughter float 3 will not be able to float out, and the warning effect will not be achieved.
[0027] Therefore, in this embodiment, the binding end between the first limiting rope 2 and the well wall of the rainwater well 5 is designed to be at the farthest distance from the binding end between the second limiting rope 4 and the well cover 6. Specifically, the position where the well wall limiting ring is installed inside the well wall of the rainwater well 5 is at the farthest position from the position where the well cover limiting ring is installed at the bottom of the well cover 6. That is, when the well cover 6 is closed on the well opening of the rainwater well 5, the well wall limiting ring and the well cover limiting ring are located at the farthest two sides of the well cover 6, respectively. By designing the binding end of the first limiting rope 2 and the binding end of the second limiting rope 4 to be at the farthest distance, entanglement between the first limiting rope 2 and the second limiting rope 4 can be prevented.
[0028] Furthermore, the end of the second limiting rope 4 away from the second fixing ring 31 is fixedly connected to the opening side of the manhole cover 6, so that the sub-buoy 3 is located at the opening of the manhole cover 6. In this way, when rainwater backflows and the water level in the rainwater well 5 rises, the main float 1 and the sub-buoy 3 float up with the water level. Since the volume of the main float 1 is larger than that of the sub-buoy 3, the main float 1 will first open the opening side of the manhole cover 6. Since the sub-buoy 3 is small and flexible, and is located near the opening of the manhole cover 6, when the main float 1 slightly opens the manhole cover 6, the sub-buoy 3 is immediately washed out of the well by the rainwater and floats on the surface of the accumulated water at the edge of the rainwater well 5. Thus, the sub-buoy 3 can play a warning role.
[0029] By setting up a structure in which the mother float 1, the first fixing component, the first limiting rope 2, the daughter float 3, the second fixing component, and the second limiting rope 4 work together, the manhole cover 6 can be automatically dislodged from the rainwater well 5 due to backflow, thus providing an automatic warning effect. At the same time, no manual identification or intervention is required throughout the process, thereby eliminating the safety hazard of people or vehicles falling into the rainwater well 5 caused by backflow of rainwater.
[0030] Additionally, refer to Figures 1-3 In this embodiment, in order to prevent the first limiting rope 2 and the second limiting rope 4 from getting tangled during long-term floating, a soft rope sleeve 7 is provided on both the first limiting rope 2 and the second limiting rope 4. The soft rope sleeve 7 has partial flexibility but cannot get tangled, so it can prevent the first limiting rope 2 and the second limiting rope 4 from getting tangled during long-term floating.
[0031] In addition, refer to Figure 2 and Figure 3 In this embodiment, a vibration-emitting light device is installed inside both the mother float 1 and the daughter float 3; the structure of the vibration-emitting light device inside the mother float 1 is described in detail below:
[0032] Specifically, in this embodiment, the vibration-emitting device includes a light-emitting diode 8 and a vibration switch 9; both the light-emitting diode 8 and the vibration switch 9 are installed inside the mother float 1, and the light-emitting diode 8 and the vibration switch 9 are electrically connected to each other through wires.
[0033] When rainwater surges back from the inside of the rainwater well 5, the mother float 1 and the daughter float 3 are violently turbulent by the surging rainwater. The vibration switch 9 senses the violent turbulence of the surging rainwater and causes the light-emitting diode 8 to emit light, thus achieving a better warning effect.
[0034] Preferably, both the mother float 1 and the daughter float 3 are made of materials with good light transmittance. This way, when the mother float 1 and the daughter float 3 encounter backflowing rainwater and violently roll around and emit light, the mother float 1 and the daughter float 3 with good light transmittance can more clearly achieve the effect of light transmission warning.
[0035] Secondly, refer to Figure 1 In this embodiment, a fall-prevention net 10 is installed inside the opening of the rainwater well 5. When the well cover 6 is placed over the opening of the rainwater well 5, the female float 1 and the female float 3 are placed inside the fall-prevention net 10. As the last line of defense against falls, the fall-prevention net 10 can effectively prevent pedestrians or vehicles from falling into the well.
[0036] In addition, the fall prevention net 10 can simultaneously hold the mother float 1 and the daughter float 3 when there is no backflow of rainwater. This can reduce the ineffective movement of the mother float 1 and the daughter float 3 in the rainwater well 5 for a long time, thereby reducing the risk of entanglement and knotting of the first limiting rope 2 and the second limiting rope 4.
[0037] The implementation principle of a safety warning device for urban storm drains in this application embodiment is as follows:
[0038] When there is no rain or only light rain and the rainwater does not back up, the water level in the rainwater well 5 is low, and the main float 1 and the secondary float 3 are located inside the rainwater well 5. When the rainwater backs up and causes the water level in the rainwater well 5 to rise, the main float 1 and the secondary float 3 float up with the rising water level. Since the main float 1 is larger than the secondary float 3, the main float 1 will first open one side of the opening of the well cover 6. Since the secondary float 3 is small and flexible, and is located near the opening of the well cover 6, when the main float 1 slightly opens the well cover 6, the secondary float 3 is immediately washed out of the well by the rainwater and floats on the surface of the accumulated water at the edge of the rainwater well 5. Thus, the secondary float 3 can serve as a warning.
[0039] When the rainfall is heavier and the backflow of rainwater is greater, the backflow of rainwater will overturn the well opening. At this time, the function of the main float 1 directly changes from opening the well cover 6 to allow the sub-float 3 to float out to the main float 1 floating out directly on its own. In this way, the larger main float 1 can play a greater warning role.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A stormwater pit safety warning device for a city, characterised in that: It includes a mother float (1) and a daughter float (3). The outside of the mother float (1) is connected to a first limiting rope (2) through a first fixing member. One end of the first limiting rope (2) is connected to the well wall of the rainwater well (5). The outside of the daughter float (3) is connected to a second limiting rope (4) through a second fixing member. One end of the second limiting rope (4) is connected to the well cover (6).
2. The urban storm drain safety warning device according to claim 1, characterized in that: The first fixing member is a first fixing ring (11), and one end of the first limiting rope (2) is tied to the first fixing ring (11).
3. The safety warning device for urban storm drains according to claim 2, characterized in that: The second fixing member is the second fixing ring (31), and one end of the second limiting rope (4) is tied to the second fixing ring (31).
4. A safety warning device for urban storm drains according to claim 3, characterized in that: The binding end between the first limiting rope (2) and the well wall of the rainwater well (5) is at the farthest distance from the binding end between the second limiting rope (4) and the well cover (6), and the end of the second limiting rope (4) away from the second fixing ring (31) is connected to the opening side of the well cover (6).
5. A safety warning device for urban storm drains according to claim 1, characterized in that: Both the first limiting rope (2) and the second limiting rope (4) are fitted with soft rope sleeves (7).
6. A safety warning device for urban storm drains according to claim 1, characterized in that: The mother float (1) and the daughter float (3) are equipped with vibration and light-emitting devices.
7. A safety warning device for urban storm drains according to claim 6, characterized in that: The vibration-emitting device includes a light-emitting diode (8) and a vibration switch (9), which are electrically connected to each other.
8. A safety warning device for urban storm drains according to claim 1, characterized in that: The rainwater well (5) is provided with a fall protection net (10) inside the wellhead, and the mother float (1) and the daughter float (3) are placed inside the fall protection net (10).