Municipal inspection well anti-falling structure

Abstract

The utility model relates to the technical field of inspection well falling prevention, and discloses a municipal inspection well falling prevention structure which comprises a well base, a well lid is arranged at the top of the well base, a bearing disc is arranged in the well base, limiting grooves are formed in four fixing bases, the other ends of connecting rods are fixedly connected with limiting rods, and the limiting rods are fixedly connected with the well lid. A spring is fixedly connected between the vertical plate and the limiting rod, the other end of the connecting rod is fixedly connected with an adjusting rod, the outer surface of the top of the bearing disc is rotationally connected with a rotating disc, and four arc-shaped grooves arranged in a circumferential array mode are formed in the outer surface of the rotating disc. The position of an arc-shaped groove is adjusted by rotating a rotary disc, a limiting rod is inserted into a limiting groove in cooperation with an adjusting rod, a connecting rod and a spring, a bearing disc and a fixing base are positioned, an anti-falling net is replaced with the bearing disc, and therefore the phenomenon that the net face is separated from a hook under the action of buoyancy due to the large water amount is avoided; and the protection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole fall prevention technology, specifically a municipal manhole fall prevention structure. Background Technology

[0002] Manholes are underground spaces used for the transfer and control of urban underground pipelines. Their surface entrances are called manhole openings or simply manhole covers. Manhole covers are mostly made of cast iron, and because the material has recycling value, they are frequently stolen, resulting in a serious loss rate. To reduce the risk of pedestrians falling into manholes when covers are opened or lost, and to avoid safety hazards, fall protection structures are usually installed inside manholes.

[0003] The common fall protection structure for manholes is a fall protection net. During installation, multiple hooks are typically installed circumferentially along the manhole wall, and the fall protection net is then hung and fixed onto these hooks, allowing it to expand within the manhole. When a pedestrian falls into the manhole due to an open or missing manhole cover, the net provides support, reducing the risk of injury. However, because the net is attached to the inner wall of the manhole via hooks, it is prone to detaching from the hooks when the water level is high and the manhole overflows due to buoyancy, thus losing its protective function. Therefore, a new fall protection structure for municipal manholes has been proposed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a municipal manhole anti-fall structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal manhole anti-fall structure, including a manhole base, a manhole cover on the top of the manhole base, a load-bearing plate inside the manhole base, four fixed seats fixedly connected in a circumferential array on the inner wall of the manhole base, each of the four fixed seats having a limit groove inside, four vertical plates arranged in a circumferential array fixedly connected to the bottom outer surface of the load-bearing plate, connecting rods movably inserted into the outer surfaces of the four vertical plates, a limit rod fixedly connected to the other end of each connecting rod, a spring fixedly connected between the vertical plate and the limit rod, the spring being sleeved on the outer surface of the connecting rod, an adjusting rod fixedly connected to the other end of the connecting rod, a turntable rotatably connected to the top outer surface of the load-bearing plate, four arc-shaped grooves arranged in a circumferential array on the outer surface of the turntable, and the four adjusting rods slidingly connected to the interior of the four arc-shaped grooves respectively.

[0006] Furthermore, the well base is fixedly connected to a number of hooks arranged in a circular array inside, and a receiving net is provided inside the well base above the load-bearing plate. A number of hook rings are fixedly connected to the outer surface of the receiving net, and the hook rings are movably connected to the number of hooks respectively.

[0007] Furthermore, two limiting holes are provided on the outer surface of the load-bearing plate, a side plate is fixedly connected to the outer surface of the turntable, a pin is movably inserted into the outer surface of the side plate, and the other end of the pin is movably connected to the interior of one of the limiting holes.

[0008] Furthermore, one end of the arc-shaped groove is located near the center of the turntable, and the other end of the arc-shaped groove is located near the edge of the turntable.

[0009] Furthermore, the outer surface of the load-bearing plate is provided with four sliding grooves, and the four adjusting rods are respectively movably connected to the interior of the four sliding grooves.

[0010] Furthermore, when the turntable rotates and the adjusting rod moves to the other end of the arc-shaped groove, the pin aligns with another limiting hole.

[0011] Furthermore, the outer surface of the load-bearing plate is provided with several through holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This municipal manhole anti-fall structure adjusts the position of the arc-shaped groove by rotating the turntable. With the help of the adjusting rod, connecting rod and spring, the limiting rod is inserted into the limiting groove to position the load-bearing plate and the fixed seat, thereby installing the load-bearing plate. By replacing the anti-fall net with the load-bearing plate, the phenomenon of the net surface detaching from the hook under the action of buoyancy due to large water volume will not occur, thus improving the protection effect.

[0014] 2. The municipal manhole anti-fall structure uses hooks to hang the receiving net on the hook, which is then positioned and fixed. The receiving net catches the incoming garbage, and the receiving net can be removed by taking the hooks off the hooks, thus facilitating the unified treatment of the incoming garbage. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the manhole cover when it is opened.

[0017] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This is a top sectional view of the structure of this utility model;

[0020] Figure 6 This utility model Figure 2 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Manhole base; 2. Manhole cover; 3. Fixed base; 4. Load-bearing plate; 5. Limiting rod; 6. Spring; 7. Connecting rod; 8. Adjusting rod; 9. Turntable; 10. Arc groove; 11. Hook; 12. Hook ring; 13. Receiving mesh; 14. Side plate; 15. Limiting hole; 16. Pin. 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] Example 1:

[0024] Please refer to the following: Figures 1-6 This utility model provides a technical solution: a municipal manhole anti-fall structure, including a manhole base 1, a manhole cover 2 on the top of the manhole base 1, a load-bearing plate 4 inside the manhole base 1, four fixed seats 3 fixedly connected in a circular array on the inner wall of the manhole base 1, each of the four fixed seats 3 having a limit groove inside, four vertical plates arranged in a circular array fixedly connected to the bottom outer surface of the load-bearing plate 4, connecting rods 7 movably inserted into the outer surface of each of the four vertical plates, and a limit rod 5 fixedly connected to the other end of each connecting rod 7, a spring 6 fixedly connected between the vertical plate and the limit rod 5, the spring 6 being sleeved on the outer surface of the connecting rod 7, and an adjusting rod 8 fixedly connected to the other end of the connecting rod 7, a turntable 9 rotatably connected to the top outer surface of the load-bearing plate 4, the outer surface of the turntable 9 having four arc-shaped grooves arranged in a circular array. 10. The four adjusting rods 8 are slidably connected to the interior of the four arc-shaped grooves 10. Specifically, when installing the load-bearing plate 4, the turntable 9 is rotated, which drives the arc-shaped grooves 10 on it to rotate. The arc-shaped grooves 10 drive the adjusting rods 8, so that the adjusting rods 8 are located at the end of the arc-shaped grooves 10 facing the interior of the turntable 9. The arc-shaped grooves 10 drive the adjusting rods 8, which causes the connecting rod 7 to drive the limiting rod 5 to move to one side. When the load-bearing plate 4 is placed on the fixed seat 3, the turntable 9 is rotated in the opposite direction, which causes the arc-shaped grooves 10 to rotate. Then the spring 6 returns to its original position, and the spring 6 drives the limiting rod 5 to insert into the limiting groove. The limiting rod 5 limits the fixed seat 3 and the load-bearing plate 4. By replacing the anti-fall net with the load-bearing plate 4, the phenomenon of the net surface detaching from the hook due to the buoyancy of the large amount of water will not occur, thus improving the protective effect.

[0025] In this embodiment, a number of hooks 11 arranged in a circular array are fixedly connected inside the well base 1. A receiving net 13 is provided inside the well base 1 above the supporting plate 4. A number of hooks 12 are fixedly connected to the outer surface of the receiving net 13. The hooks 12 are movably connected to the hooks 11. Specifically, when garbage falls onto the receiving net 13, and when it is necessary to process the garbage in a unified manner, the hooks 12 are removed from the hooks 11, and the receiving net 13 is removed as a whole, which facilitates the unified processing of the garbage that enters.

[0026] In this embodiment, two limiting holes 15 are provided on the outer surface of the load-bearing plate 4, and a side plate 14 is fixedly connected to the outer surface of the turntable 9. A pin 16 is movably inserted into the outer surface of the side plate 14, and the other end of the pin 16 is movably connected to the interior of one of the limiting holes 15. Specifically, the pin 16 is pulled out to release the limiting of the turntable 9, and the pin 16 is inserted to limit the turntable 9.

[0027] In this embodiment, one end of the arc groove 10 is located near the center of the turntable 9, and the other end of the arc groove 10 is located near the edge of the turntable 9. Specifically, when the turntable 9 is rotated, the arc groove 10 on it rotates. When the adjusting rod 8 rotates from the end of the arc groove 10 near the edge of the turntable 9 to the end of the arc groove 10 near the center of the turntable 9, the adjusting rod 8 causes the limiting rod 5 to disengage from the inside of the limiting groove.

[0028] In this embodiment, the outer surface of the load-bearing plate 4 is provided with four sliding grooves, and the four adjusting rods 8 are respectively movably connected to the interior of the four sliding grooves. Specifically, when the rotating turntable 9 drives the arc-shaped groove 10 to rotate, the adjusting rods 8 slide inside the sliding grooves, and the sliding grooves provide a channel for the movement of the adjusting rods 8.

[0029] In this embodiment, when the turntable 9 rotates and the adjusting rod 8 moves to the other end of the arc groove 10, the pin 16 corresponds to another limiting hole 15. Specifically, when the turntable 9 is rotated, the adjusting rod 8 moves, causing the limiting rod 5 to be inserted into the limiting groove or to be disengaged from the limiting groove, and then the pin 16 is inserted into the corresponding limiting hole 15 to limit the turntable 9.

[0030] In this embodiment, the outer surface of the load-bearing plate 4 is provided with several through holes, specifically, rainwater passes through the through holes and then through the load-bearing plate 4.

[0031] Working Principle: In use, the load-bearing plate 4 is installed. During installation, the pin 16 is removed to release the limit on the turntable 9. The turntable 9 is rotated, causing the arc-shaped groove 10 on it to rotate. The arc-shaped groove 10 drives the adjusting rod 8, so that the adjusting rod 8 is located at the end of the arc-shaped groove 10 facing the inside of the turntable 9. The arc-shaped groove 10 drives the adjusting rod 8, causing the connecting rod 7 to move the limiting rod 5 to one side. When the load-bearing plate 4 is placed above the fixed base 3, the turntable 9 is rotated in the opposite direction, causing the arc-shaped groove 10 to rotate. Then the spring 6 returns to its original position, and the spring 6 drives the limiting rod 5 to insert into the limiting groove. The limiting rod 5 limits the fixed base 3 and the load-bearing plate 4. Finally, the pin 16 is inserted into the corresponding limiting hole 15 to limit the turntable 9. By replacing the anti-fall net with the load-bearing plate 4, the phenomenon of the net surface detaching from the hook due to buoyancy under the action of large water volume will not occur, thus improving the protective effect.

[0032] Some of the incoming garbage falls onto the receiving net 13, and rainwater is discharged through the receiving net 13. When it is necessary to dispose of the garbage in a unified manner, the hook 12 is removed from the hook 11, and the receiving net 13 is removed as a whole, which facilitates the unified disposal of the incoming garbage.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal manhole anti-fall structure, comprising a manhole base (1), characterized in that: The top of the well base (1) is provided with a well cover (2), and the inside of the well base (1) is provided with a load-bearing plate (4). The inner wall of the well base (1) is fixedly connected with four fixed seats (3) in a circular array. Each of the four fixed seats (3) has a limit groove. The bottom outer surface of the load-bearing plate (4) is fixedly connected with four vertical plates arranged in a circular array. Each of the four vertical plates has a connecting rod (7) movably inserted into its outer surface. The other end of each connecting rod (7) is fixedly connected with a limit rod (5). A spring (6) is fixedly connected between the vertical plate and the limit rod (5). The spring (6) is sleeved on the outer surface of the connecting rod (7). The other end of the connecting rod (7) is fixedly connected with an adjusting rod (8). The top outer surface of the load-bearing plate (4) is rotatably connected with a turntable (9). The outer surface of the turntable (9) has four arc-shaped grooves (10) arranged in a circular array. Each of the four adjusting rods (8) is slidably connected to the interior of the four arc-shaped grooves (10).

2. The municipal manhole anti-fall structure according to claim 1, characterized in that: The well base (1) is fixedly connected to a number of hooks (11) arranged in a circular array. The well base (1) is provided with a receiving net (13) above the load-bearing plate (4). The outer surface of the receiving net (13) is fixedly connected to a number of hook rings (12). The hook rings (12) are movably connected to the hooks (11) respectively.

3. The municipal manhole anti-fall structure according to claim 1, characterized in that: The outer surface of the load-bearing plate (4) has two limiting holes (15). The outer surface of the turntable (9) is fixedly connected to a side plate (14). A pin (16) is movably inserted into the outer surface of the side plate (14). The other end of the pin (16) is movably connected to the interior of one of the limiting holes (15).

4. The municipal manhole anti-fall structure according to claim 1, characterized in that: One end of the arc-shaped groove (10) is located near the center of the turntable (9), and the other end of the arc-shaped groove (10) is located near the edge of the turntable (9).

5. The municipal manhole anti-fall structure according to claim 1, characterized in that: The outer surface of the load-bearing plate (4) is provided with four sliding grooves, and the four adjusting rods (8) are respectively movably connected to the interior of the four sliding grooves.

6. The municipal manhole anti-fall structure according to claim 3, characterized in that: When the turntable (9) rotates, causing the adjusting rod (8) to move to the other end of the arc groove (10), the pin (16) corresponds to another limiting hole (15).

7. The municipal manhole anti-fall structure according to claim 1, characterized in that: The outer surface of the load-bearing plate (4) has several through holes.

Images