Anti-falling structure of catch basin

Abstract

The utility model relates to the field of catch basin structures, in particular to a catch basin anti-falling structure which comprises an anti-falling net mounted on a well wall, the anti-falling net is integrally of a cylindrical structure, the upper end of the anti-falling net is fixedly connected with the well wall, a tightening assembly is arranged at the lower end of the anti-falling net, and the tightening assembly is used for gathering the lower end of the anti-falling net. The tightening assembly comprises connecting rings which are evenly arranged at intervals in the circumferential direction of the anti-falling net and further comprises a tightening rope which is sequentially arranged in the connecting rings in a sliding and penetrating mode, and a limiting assembly used for limiting relative sliding between the tightening rope and the connecting rings is arranged on the tightening rope. The anti-falling net has the effect of reducing the influence of the anti-falling net on underground maintenance work.

Description

Technical Field

[0001] This application relates to the technical field of rainwater well structures, and in particular to a rainwater well anti-fall structure. Background Technology

[0002] The storm drain is connected to the drainage pipe on the side, with a seepage pipe at the bottom and a manhole cover on the top to drain urban sewage or rainwater, reducing the occurrence of road flooding.

[0003] Manhole covers typically rest on top of storm drains under their own weight. During periods of heavy rainfall, there is a risk that the covers may be washed away, potentially causing people or animals to fall in and posing a safety hazard. To mitigate this risk, fall-prevention nets are usually installed inside storm drains. For example, utility model patent CN218264234U discloses a storm drain with hooks on the well wall, through which the fall-prevention net is attached.

[0004] While the installation of fall protection nets in related technologies reduces the risk of people and animals falling to some extent, it also has certain impacts on the work process of workers cleaning or inspecting the well underground. Workers need to remove the fall protection nets from multiple hooks, and the process of removing the fall protection nets takes a long time, which is not conducive to the maintenance work of workers in the rainwater well. Utility Model Content

[0005] To facilitate maintenance work on rainwater wells, this application provides a rainwater well anti-fall structure.

[0006] The rainwater well anti-fall-off structure provided in this application adopts the following technical solution:

[0007] A fall-prevention structure for rainwater wells includes a fall-prevention net installed on the well wall. The fall-prevention net is generally cylindrical. The upper end of the fall-prevention net is fixedly connected to the well wall. A tightening component is provided at the lower end of the fall-prevention net. The tightening component is used to gather the lower end of the fall-prevention net. The tightening component includes connecting rings evenly spaced along the circumference of the fall-prevention net, and a tightening rope that slides sequentially through the multiple connecting rings. A limiting component is provided on the tightening rope to limit the relative sliding between the tightening rope and the connecting rings.

[0008] By adopting the above technical solution, the fall arrest net has a flexible structure. Multiple connecting rings are brought closer together and converged by a tightening rope, and then a limiting component limits the tightening rope, achieving a closed lower end of the fall arrest net. In this state, the fall arrest net can prevent foreign objects from falling. When workers need to go down the well for maintenance, they only need to release the limiting of the tightening rope, allowing the multiple connecting rings to separate, thus opening the lower end of the fall arrest net. Compared with related technologies, workers do not need to remove the fall arrest net from the well wall, facilitating underground maintenance work.

[0009] Optionally, the limiting component includes a connecting block and a clamping plate. The connecting block has two connecting holes, and the two ends of the tightening rope are inserted into the two connecting holes. The clamping plate is configured in two sets corresponding to the connecting holes. One side of the clamping plate is fixedly connected to the connecting block. The clamping plate is made of elastic material. The clamping plate bends towards the side closer to the tightening rope to clamp the tightening rope.

[0010] By adopting the above technical solution, the clamping plate is deformed, causing it to press against the tightening rope. Under the action of friction, the tightening rope and the connecting block are limited in position. At the same time, when the lower end of the safety net is closed, the connecting block abuts against the connecting ring, and the two are relatively fixed, thereby limiting the position between the tightening rope and the connecting ring.

[0011] Optionally, the limiting component further includes a driving block, which is slidably connected to the connecting block. Sliding the driving block can cause the side of the clamping plate away from the connecting plate to bend towards the tightening rope.

[0012] By adopting the above technical solution, the position of the clamping plate can be adjusted by using a sliding drive block to deform the clamping plate.

[0013] Optionally, each set of the clamping plates includes multiple clamping plates, which are evenly spaced along the circumference of the tightening rope.

[0014] By adopting the above technical solution, multiple clamping plates clamp the tightening rope from different positions to limit the tightening rope, thereby improving the stability of the limiting component in limiting the tightening rope.

[0015] Optionally, the clamping plate is provided with a driving inclined surface, and the driving block is provided with clearance holes for the two ends of the tightening rope to pass through. The sliding direction of the driving block is parallel to the through direction of the connecting hole. Moving the driving block towards the connecting block can cause the side wall of the clearance hole to abut against the driving inclined surface and drive the clamping plate to bend towards the tightening rope.

[0016] By adopting the above technical solution, a driving inclined surface is set on the clamping plate. When the moving driving block moves, the clamping plate can be deformed after the edge of the clearance hole comes into contact with the driving inclined surface, thereby realizing the synchronous adjustment of the position of multiple clamping plates.

[0017] Optionally, a rotating ring is provided on the connecting block. The rotating ring is rotatably connected to the connecting block and threadedly connected to the driving block. The rotation of the rotating ring can drive the driving block to move.

[0018] By adopting the above technical solution, rotating the rotating ring drives the drive block to move, thereby adjusting the position of the drive block. At the same time, the self-locking property of the thread allows the drive block to stably abut against the clamping plate, preventing the clamping plate from rebounding and improving the stability of the tensioning rope limit.

[0019] Optionally, the rotating ring is a circular ring structure, the driving block is a cylindrical structure, and the rotating ring is sleeved on the outside of the driving block.

[0020] By adopting the above technical solution, the rotating ring is sleeved on the outside of the driving block, which increases the contact area between the rotating ring and the driving block and improves the stability of the rotating ring driving the driving block to move. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0022] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of section A.

[0023] Figure 3 This is a schematic diagram of the limiting component structure according to an embodiment of this application.

[0024] Reference numerals: 1. Fall protection net; 2. Tightening assembly; 21. Connecting ring; 22. Tightening rope; 3. Limiting assembly; 31. Connecting block; 32. Abutting plate; 33. Connecting hole; 34. Driving block; 35. Clearance hole; 36. Driving inclined surface; 37. Rotating ring; 38. Friction groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a rainwater well anti-fall structure.

[0027] Reference Figure 1 and Figure 2A fall-prevention structure for rainwater wells includes a fall-prevention net 1 with an overall cylindrical structure. The upper end of the fall-prevention net 1 is fixed to the well wall (by means of binding, screwing, etc.). The fall-prevention net 1 is a flexible structure, and in this embodiment, it is formed by weaving cotton rope. In this state, workers can easily enter and exit the rainwater well. A tightening component 2 is provided at the lower end of the fall-prevention net 1, which is used to gather the lower end of the fall-prevention net 1, thereby preventing foreign objects from falling into the rainwater well. The tightening component 2 controls the rapid opening and closing of the end of the fall-prevention net 1 closest to the ground, thereby facilitating workers to enter and exit the rainwater well for maintenance.

[0028] Reference Figure 1 and Figure 2 The tightening component 2 includes connecting rings 21 and tightening ropes 22. The connecting rings 21 are circular rings and are fixedly connected to the lower end of the fall arrest net 1 (e.g., by binding or heat fusion). Multiple connecting rings 21 are evenly spaced along the circumference of the fall arrest net 1. The tightening ropes 22 are sequentially threaded through the multiple connecting rings 21 and can slide relative to the connecting rings 21. By sliding the connecting rings 21, the multiple connecting rings 21 are brought closer together, thereby closing the end of the fall arrest net 1 closest to the ground.

[0029] Reference Figure 1 and Figure 3 The tightening rope 22 is equipped with a limiting component 3 to limit the relative sliding between the connecting ring 21 and the tightening rope 22. The limiting component 3 includes a connecting block 31 and a clamping plate 32. The connecting block 31 has a cylindrical structure and two connecting holes 33 extending along its own axis. The two ends of the tightening rope 22 slide through the connecting holes 33. The clamping plate 32 is located on the side of the connecting block 31 near the end of the tightening rope 22. The clamping plate 32 is an elastic plate. By bending the side of the clamping plate 32 away from the connecting block 31, it can clamp the tightening rope 22, thereby limiting the relative movement between the connecting block 31 and the tightening rope 22. When the lower end of the fall protection net 1 is closed, the side of the connecting block 31 away from the end of the tightening rope 22 is pressed against the connecting ring 21, thereby limiting the relative sliding between the connecting ring 21 and the tightening rope 22.

[0030] Reference Figure 1 and Figure 3 The clamping plates 32 are arranged in two groups corresponding to the two connecting holes 33. Each group of clamping plates 32 includes multiple clamping plates 32 evenly spaced along the circumference of the connecting holes 33. In this embodiment, there are three clamping plates 32. The multiple clamping plates 32 limit the tensioning rope 22, improving the stability of the lower end of the fall arresting net 1 in the closed state. In this embodiment, the clamping plates 32 are arc-shaped plate structures corresponding to the tensioning rope 22, to further improve the stability of the clamping plates 32 in limiting the tensioning rope 22.

[0031] Reference Figure 1 and Figure 3 The limiting component 3 also includes a driving block 34, which is located on the side of the clamping piece 32 away from the connecting block 31. The driving block 34 is slidably connected to the connecting block 31 in a direction parallel to the axis of the connecting block 31. The driving block 34 is provided with a clearance hole 35 for the tightening rope 22 to pass through. The clamping piece 32 is inserted into the clearance hole 35, and a driving inclined surface 36 is provided on the side of the clamping piece 32 away from the tightening rope 22. The driving inclined surface 36 is inclined along the axis of the clamping piece 32 from the side near the connecting block 31 to the side away from the connecting block 31 and towards the axis of the clamping piece 32. A mating surface that fits with the driving inclined surface 36 is provided on the side wall of the clearance hole 35. When the driving block 34 moves towards the connecting block 31, under the action of the driving inclined surface 36, it can drive the side of the clamping pieces 32 away from the connecting block 31 to bend towards the tightening rope 22, thereby facilitating the adjustment of the position of the clamping pieces 32 by the operator.

[0032] Reference Figure 1 and Figure 3 A rotating ring 37 is provided on the side of the connecting block 31 near the driving block 34. The rotating ring 37 has a circular structure and is coaxially arranged with the connecting block 31. The rotating ring 37 is rotatably connected to the connecting block 31 around its own axis. The driving block 34 has a cylindrical structure. The rotating ring 37 is coaxially sleeved on the outside of the driving block 34 and threadedly connected to the driving block 34. Rotating the rotating ring 37 can drive the driving block 34 to move, realizing the adjustment of the position of the driving block 34. At the same time, the self-locking property of the thread allows the driving block 34 to stably abut against the clamping plate 32, improving the stability of the clamping plate 32 in limiting the tensioning rope 22. Multiple friction grooves 38 are evenly provided on the outer wall of the rotating ring 37 and the side wall of the connecting block 31 to increase the friction coefficient of the outer wall of the rotating ring 37, making it convenient for the operator to rotate the rotating ring 37.

[0033] The implementation principle of the rainwater well fall prevention structure in this application embodiment is as follows: Supporting the connecting block 31, a force is applied to the end of the tightening rope 22, allowing the connecting block 31 to slide relative to the tightening rope 22, thereby causing multiple connecting rings 21 to quickly converge. This achieves rapid closure of the lower end of the fall prevention net 1. When workers need to go down into the well for maintenance, rotating the rotating ring 37 causes the clamping plate 32 to no longer press against the tightening rope 22. Subsequently, pulling the tightening rope 22 on the side of the connecting ring 21 away from the end of the tightening rope 22 causes the multiple connecting rings 21 to quickly separate, opening the lower end of the fall prevention net 1. This reduces the impact of the fall prevention net 1 on underground maintenance work and facilitates workers going down into the well for maintenance.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fall-prevention structure for a rainwater well, comprising a fall-prevention net (1) installed on the well wall, characterized in that: The fall protection net (1) is generally cylindrical. The upper end of the fall protection net (1) is fixedly connected to the well wall. The lower end of the fall protection net (1) is provided with a tightening component (2). The tightening component (2) is used to gather the lower end of the fall protection net (1). The tightening component (2) includes connecting rings (21) evenly spaced along the circumference of the fall protection net (1), and also includes tightening ropes (22) that are slidably passed through multiple connecting rings (21) in sequence. The tightening ropes (22) are provided with a limiting component (3) for limiting the relative sliding between the tightening ropes (22) and the connecting rings (21).

2. The rainwater well anti-fall structure according to claim 1, characterized in that: The limiting component (3) includes a connecting block (31) and a clamping plate (32). The connecting block (31) has two connecting holes (33). The two ends of the tightening rope (22) are inserted into the two connecting holes (33). The clamping plate (32) is set in two sets corresponding to the connecting holes (33). One side of the clamping plate (32) is fixedly connected to the connecting block (31). The clamping plate (32) is made of elastic material. The clamping plate (32) bends towards the side closer to the tightening rope (22) to clamp the tightening rope (22).

3. The rainwater well anti-fall structure according to claim 2, characterized in that: The limiting component (3) also includes a driving block (34), which is slidably connected to the connecting block (31). Sliding the driving block (34) can cause the side of the clamping plate (32) away from the connecting plate to bend towards the tightening rope (22).

4. The rainwater well anti-fall structure according to claim 3, characterized in that: Each set of the clamping plates (32) includes multiple clamping plates (32), which are evenly spaced along the circumference of the tightening rope (22).

5. The rainwater well anti-fall structure according to claim 4, characterized in that: The clamping plate (32) is provided with a driving inclined surface (36), and the driving block (34) is provided with clearance holes (35) for the two ends of the tightening rope (22) to pass through. The sliding direction of the driving block (34) is parallel to the through direction of the connecting hole (33). Moving the driving block (34) towards the connecting block (31) can cause the side wall of the clearance hole (35) to abut against the driving inclined surface (36) and drive the clamping plate (32) to bend towards the tightening rope (22).

6. The rainwater well anti-fall structure according to claim 5, characterized in that: A rotating ring (37) is provided on the connecting block (31). The rotating ring (37) is rotatably connected to the connecting block (31) and threadedly connected to the driving block (34). The rotation of the rotating ring (37) can drive the driving block (34) to move.

7. The rainwater well anti-fall structure according to claim 6, characterized in that: The rotating ring (37) has a circular ring structure, and the driving block (34) has an overall cylindrical structure. The rotating ring (37) is sleeved on the outside of the driving block (34).

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