A structure for adding a fall prevention net in a well

Abstract

The present invention belongs to the technical field of rain and sewage wells, and specifically relates to a structure for adding a fall prevention net inside a well, including a roadbed, a well pipe, and a fall prevention net body; the well pipe is installed in the roadbed, a group of fixed hooks are embedded in the roadbed, a group of reserved holes aligned with the fixed hooks are opened on the side wall of the well pipe, one end of the fixed hook close to the well pipe extends into the reserved hole, and a circular side rope is fixedly connected to the side of the fall prevention net body; the fixed hook is made of steel bars, the roadbed is formed by pouring C30 ordinary concrete, and the fixed hook is poured in the roadbed. By adding pre-embedded fixed hooks in the roadbed and then tying the side rope to the fixed hook, the fall prevention net body will be fixedly added inside the well pipe at this time, improving the safety factor and strengthening the firmness of the wellhead. In the case of the missing manhole cover, it can also play a role in preventing falls, solving the risk of personnel falling and being injured after the manhole cover is damaged and missing.

Description

Technical Field

[0001] The present invention belongs to the technical field of rainwater wells, and specifically relates to a structure for adding an anti-falling net inside a well. Background Art

[0002] Currently, in order to prevent a large amount of water from accumulating on the road surface, rainwater wells are installed on the road. The rainwater on the road surface is discharged through the rainwater wells. A manhole cover is usually set above the rainwater well to prevent pedestrians from falling into the well. There are usually water inlet holes on the manhole cover for rainwater to enter the rain and sewage well.

[0003] Regarding the existing related technologies, the inventor believes that there are often the following defects: The manhole cover above the current rainwater well may be lost. At this time, pedestrians walking at night may fall into the well, resulting in frequent danger of people falling into the sewer. Therefore, the present invention provides a structure for adding an anti-falling net inside a well. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: A structure for adding an anti-falling net inside a well according to the present invention includes a roadbed, a well pipe, and an anti-falling net body; the well pipe is installed in the roadbed, a group of fixed hooks are embedded in the roadbed, a group of reserved holes aligned with the fixed hooks are opened on the side wall of the well pipe, one end of the fixed hook close to the well pipe extends into the reserved hole, a circular side rope is fixedly connected to the side of the anti-falling net body, one end of the fixed hook located in the roadbed is bent for anchoring, and the other end of the fixed hook is bent for hanging the side rope; the fixed hook is made of steel bars, the roadbed is formed by pouring C30 ordinary concrete, and the fixed hook is poured in the roadbed. By adding pre-embedded fixed hooks in the roadbed and then tying the side rope to the fixed hook, the anti-falling net body will be added and fixed in the well pipe at this time, improving the safety factor and strengthening the firmness of the wellhead. In the case of the manhole cover being missing, it can also play an anti-falling role, solving the risk of personnel falling and being injured after the manhole cover is damaged and missing.

[0006] Preferably, a group of ring bars are arranged on the surface of a group of the fixed hooks, and the ring bars are tied to the fixed hooks through a steel bar framework; by means of the ring bars, a group of fixed hooks can form a whole, thereby strengthening the fixing effect of the fixed hooks in the roadbed and preventing the fixed hooks from falling off the roadbed when a person falls on the anti-falling net.

[0007] Preferably, an electric telescopic rod is fixedly connected to the inner wall of the well pipe through a bracket. The top end of the electric telescopic rod is slidably connected to an output rod. The surface of the output rod is slidably connected to a water collection box. One side of the water collection box away from the anti-fall net body is attached to the inner wall of the well pipe. A water inlet flow channel is formed in the roadbed. One end of the water inlet flow channel extends to the top surface of the roadbed, and the other end extends into the well pipe and is located above the water collection box. A water dropping hole is formed in the bottom surface of the water collection box. The inner diameter of the water dropping hole is much smaller than the inner diameter of the water inlet flow channel. A pressure sensor is fixedly connected to the side wall of the electric telescopic rod. A spring is fixedly connected between the pressure sensor and the water collection box. The pressure sensor controls the electric telescopic rod through a controller. A first connecting line is fixedly connected to the surface of the output rod. The other end of the first connecting line is fixedly connected to the central part of the bottom surface of the anti-fall net body. When the well pipe is draining water, rainwater will pass through the anti-fall net body. At this time, impurities carried in the rainwater will pass through the anti-fall net body, and some impurities will remain on the anti-fall net body, making the anti-fall net body dirty. As a result, pedestrians falling on the anti-fall net body will be soiled by the impurities. When it rains, rainwater on the roadbed will flow into the well pipe through the water inlet flow channel, and then the water will flow into the water collection box. At this time, the water collection box will become heavier and move downward, thus applying pressure to the spring. At this time, the pressure sensor (set the pressure value of the pressure sensor so that it will start the electric telescopic rod when it is under pressure) will sense the pressure and start the electric telescopic rod (the electric telescopic rod starts for about 1H - 2H). At this time, the output rod will move up and down back and forth, causing the first connecting line to pull the anti-fall net body to vibrate, which plays a role in shaking off the impurities mixed in the rainwater from the anti-fall net body.

[0008] Preferably, an alarm is fixedly connected to the side of the pressure sensor away from the electric telescopic rod. Sound holes are evenly formed on the side of the alarm away from the pressure sensor. A second connecting line is fixedly connected to one side of the water collection box. The other end of the second connecting line is fixedly connected to the central part of the bottom surface of the anti-fall net body. By setting a pressure value greater than the pressure value when the water collection box is full of water for the pressure sensor, when a person accidentally falls on the anti-fall net body, the central part of the anti-fall net body will drop. At this time, the second connecting line will pull the water collection box, thereby applying greater pressure to the spring, causing the pressure sensor (the pressure sensor starts the alarm through the controller) to start the alarm (emit sound waves) for alarm, so that pedestrians passing by can timely discover the person who has fallen on the anti-fall net body, thus further improving the safety of the well pipe.

[0009] Preferably, an elastic plate is fixedly connected to the inner wall of the alarm. The elastic plate is used to block the sound outlet holes, and a puncturing mechanism is arranged in the alarm. Since the environment in the well pipe is relatively humid, the electronic components in the alarm are prone to being damaged by moisture. At this time, the elastic plate can be used to block the sound outlet holes, so as to prevent moisture from entering the alarm and damaging the electronic components. When the alarm needs to sound, the puncturing mechanism will puncture the elastic plate, so that the alarm can sound normally.

[0010] Preferably, the puncturing mechanism includes a sliding plate which is slidably connected to the bottom surface of the inner wall of the alarm. A plurality of puncturing cones are evenly and fixedly connected to one side of the sliding plate close to the elastic plate. A cylinder is fixedly connected to the top end of the sliding plate. A connecting groove is formed in the top end of the alarm. The surface of the cylinder fits into the connecting groove, and the cylinder and the connecting groove are arranged in a staggered manner. A connecting rod is fixedly connected to one side of the water collecting box close to the alarm, and a push plate is fixedly connected to the other end of the connecting rod. When the water collecting box is pulled by the second connecting line, the water collecting box will drive the connecting rod to move downward. At this time, the push plate will enter the connecting groove to push the cylinder, and then the cylinder will drive the sliding plate to move toward the elastic plate, so that the puncturing cones on the sliding plate puncture the elastic plate and no longer seal the sound outlet holes, playing a role in automatically puncturing the elastic plate.

[0011] Preferably, a hollow ring is fixedly connected to the inner wall of the well pipe. The bottom surface of the anti-falling net body is located at the central part of the hollow ring. A sliding ring is hermetically and slidably connected to the bottom surface of the hollow ring. The bottom surface of the sliding ring is fixedly connected to the output rod. A group of air outlet holes are formed in the side wall of the hollow ring. During the up-and-down movement of the output rod of the electric telescopic rod, the sliding ring will be driven to move. At this time, the sliding ring will move back and forth in the hollow ring, so that the gas in the hollow ring is blown onto the anti-falling net body through the air outlet holes, thereby blowing off the impurities on the anti-falling net body, further improving the cleaning effect on the anti-falling net body. At the same time, the blown air can accelerate the drying speed of the anti-falling net body after the rain stops, reducing the corrosion of the anti-falling net body by the rain.

[0012] Preferably, a hollow fixing rod corresponding to the air outlet hole is fixedly connected to the inner wall of the hollow ring. A spray head is fixedly installed at the other end of the fixing rod. An elastic hollow block is communicated with the surface of the fixing rod. Insecticide is stored in the hollow block. Since the environment in the well pipe is relatively complex and there are many small insects, these small insects may bite the anti-falling net body, causing damage to the anti-falling net body. When the sliding ring is pushed, the sliding ring will squeeze the hollow block, so that the insecticide in the hollow block enters the fixing rod and is then sprayed onto the anti-falling net body from the spray head. Through the above mechanism, the effect of killing insects on the anti-falling net body can be achieved, preventing the anti-falling net body from being bitten and damaged by insects.

[0013] Preferably, a sponge block is fixedly connected to the inner wall of the water inlet flow channel on the well pipe. A sliding groove communicating with the water inlet flow channel is formed in the well pipe, and a floating plate is slidably connected to the inner wall of the sliding groove. Since the rainwater entering from the water inlet flow channel contains impurities, these impurities will enter the water collection box and remain there. Over time, more and more impurities will accumulate, causing the water collection box to become heavier and accidentally trigger the pressure sensor. At this time, the sponge block can be used to filter the water entering from the water inlet flow channel, so that the impurities in the water cannot enter the water collection box, avoiding the accidental triggering of the pressure sensor. When the rainwater passes through the water inlet flow channel, it will be blocked by the sponge block, and the inner diameter of the water inlet flow channel itself is small. At this time, the water fills the water inlet flow channel, causing the floating plate to move upward in the sliding groove by means of the water. After the rain stops, the floating plate will move downward to scrape the impurities on the surface of the sponge block, thus achieving the effect of cleaning the sponge block.

[0014] Preferably, a discharge chute communicating with the water inlet flow channel is formed in the well pipe. One end of the discharge chute far from the water inlet flow channel extends into the well pipe. A cavity communicating with the discharge chute is formed in the well pipe. A rectangular groove communicating with the water inlet flow channel is formed in the top surface of the cavity. A pressing plate is hermetically slidably connected to the inner wall of the rectangular groove. The other end of the pressing plate is fixedly connected to the floating plate. A pressing block is hermetically slidably connected to the inner wall of the sliding groove. A vertical long groove is formed in the pressing block. A hollow elastic block is fixedly connected to one side of the pressing block close to the discharge chute. The side wall of the elastic block is attached to the inner wall of the discharge chute. When the floating plate moves downward to clean the impurities on the sponge block, the impurities will fall on the elastic block in the discharge chute. When the floating plate moves to a lower position, the pressing plate will enter the rectangular groove. At this time, under the action of the gravity of the floating plate, the pressing plate will continue to move downward, causing the pressing plate to squeeze the gas in the cavity, so that the gas pushes the pressing block. At this time, the pressing block will press the elastic block to deform, so that the impurities on the elastic block fall into the long groove of the pressing block, and then fall into the discharge chute from the long groove and are discharged, playing a role in discharging the impurities cleaned from the sponge block. When the water enters the water inlet flow channel, the floating plate will rise (the inner diameter of the long groove is much smaller than that of the water inlet flow channel, and at this time the water can still fill the water inlet flow channel). After that, the elastic block will recover to seal the discharge chute and at the same time push the pressing block to reset.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The fixed hook is made of steel bars, and the roadbed is formed by pouring C30 ordinary concrete. The fixed hook is poured into the roadbed. By adding a pre-embedded fixed hook in the roadbed and then tying the side rope to the fixed hook, the anti-falling net body will be fixedly installed in the well pipe, improving the safety factor and strengthening the firmness of the wellhead. In the case of the missing manhole cover, it can also play an anti-falling role, solving the risk of personnel falling and being injured after the manhole cover is damaged and missing.

[0017] 2. By means of the ring ribs, a group of fixed hooks can be integrated into a whole, thereby enhancing the fixing effect of the fixed hooks in the roadbed and preventing the fixed hooks from falling off the roadbed when people fall on the anti-falling net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the present invention;

[0020] Figure 2 is a cross-sectional view of the well pipe in the present invention;

[0021] Figure 3 is a schematic structural view of the hollow ring, electric telescopic rod and water collection box in the present invention;

[0022] Figure 4 is Figure 3 an enlarged view of part A of

[0023] Figure 5 is Figure 3 an enlarged view of part B of

[0024] Figure 6 is a partial structural cross-sectional view of the well pipe in the present invention;

[0025] Figure 7 is Figure 6 an enlarged view of part C of

[0026] In the figures: 1, well pipe; 2, roadbed; 3, reserved hole; 4, fixed hook; 5, side rope; 6, anti-falling net body; 7, ring rib; 8, electric telescopic rod; 9, output rod; 10, water collection box; 11, spring; 12, pressure sensor; 13, first connecting wire; 14, second connecting wire; 15, alarm; 16, sound outlet hole; 17, elastic plate; 18, cylinder; 19, sliding plate; 20, connecting rod; 21, push plate; 22, connecting groove; 23, hollow ring; 24, sliding ring; 25, air outlet hole; 26, hollow block; 27, fixed rod; 28, nozzle; 29, water inlet channel; 30, sponge; 31, chute; 32, floating plate; 33, discharge chute; 34, elastic block; 35, cavity; 36, pressing block; 37, long groove; 38, pressing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Embodiment 1

[0029] As Figures 1 to 6As shown in the figure, a structure for adding a fall-prevention net in a well according to an embodiment of the present invention includes a roadbed 2, a well pipe 1, and a fall-prevention net body 6; the well pipe 1 is installed in the roadbed 2, a group of fixed hooks 4 are embedded in the roadbed 2, a group of reserved holes 3 aligned with the fixed hooks 4 are formed in the side wall of the well pipe 1, one end of the fixed hook 4 close to the well pipe 1 extends into the reserved hole 3, an annular side rope 5 is fixedly connected to the side of the fall-prevention net body 6, one end of the fixed hook 4 located in the roadbed 2 is bent 90 degrees for anchoring, and the other end of the fixed hook 4 is bent 270 degrees for hanging the side rope 5; the fixed hook 4 is made of steel bars, the roadbed 2 is formed by pouring C30 ordinary concrete, and the fixed hook 4 is poured in the roadbed 2. By adding and pre-embedding the fixed hook 4 in the roadbed 2 and then tying the side rope 5 to the fixed hook 4, the fall-prevention net body 6 will be fixedly added in the well pipe 1 at this time, improving the safety factor and strengthening the firmness of the wellhead. In the case of the missing manhole cover, it can also play a role in preventing falls, solving the risk of personnel falling and being injured after the manhole cover is damaged and missing.

[0030] A group of hoop bars 7 are arranged on the surface of a group of the fixed hooks 4, and the hoop bars 7 are tied to the fixed hooks 4 through a steel bar framework; by means of the hoop bars 7, a group of fixed hooks 4 can be formed into a whole, thereby strengthening the fixing effect of the fixed hooks 4 in the roadbed 2 and preventing the fixed hooks 4 from falling off the roadbed 2 when a person falls on the fall-prevention net.

[0031] An electric telescopic rod 8 is fixedly connected to the inner wall of the well pipe 1 through a bracket. The top end of the electric telescopic rod 8 is slidably connected to an output rod 9. The surface of the output rod 9 is slidably connected to a water collection box 10. One side of the water collection box 10 away from the anti-falling net body 6 is attached to the inner wall of the well pipe 1. A water inlet flow channel 29 is formed in the roadbed 2. One end of the water inlet flow channel 29 extends to the top surface of the roadbed 2, and the other end of the water inlet flow channel 29 extends into the well pipe 1 and is located above the water collection box 10. A water dropping hole is formed in the bottom surface of the water collection box 10, and the inner diameter of the water dropping hole is much smaller than the inner diameter of the water inlet flow channel 29. A pressure sensor 12 is fixedly connected to the side wall of the electric telescopic rod 8. A spring 11 is fixedly connected between the pressure sensor 12 and the water collection box 10. The pressure sensor 12 controls the electric telescopic rod 8 through a controller. A first connecting wire 13 is fixedly connected to the surface of the output rod 9. The other end of the first connecting wire 13 is fixedly connected to the central part of the bottom surface of the anti-falling net body 6. Since when the well pipe 1 is draining water, rainwater will pass through the anti-falling net body 6. At this time, impurities carried in the rainwater will pass through the anti-falling net body 6, and some impurities will remain on the anti-falling net body 6, making the anti-falling net body 6 dirty, resulting in pedestrians falling on the anti-falling net body 6 being soiled by impurities. At this time, when it rains, the rainwater on the roadbed 2 will flow into the well pipe 1 through the water inlet flow channel 29, and then the water will flow into the water collection box 10. At this time, the water collection box 10 will become heavier and move downward, thereby providing pressure on the spring 11. At this time, the pressure sensor 12 (set the pressure value of the pressure sensor 12 so that it will start the electric telescopic rod 8 when it is under pressure) will sense the pressure and start the electric telescopic rod 8 (the electric telescopic rod 8 starts for about 1H - 2H). At this time, the output rod 9 will move up and down back and forth, causing the first connecting wire 13 to pull the anti-falling net body 6 to shake, playing a role of shaking off the impurities mixed in the rainwater from the anti-falling net body 6).

[0032] An alarm 15 is fixedly connected to the side of the pressure sensor 12 away from the electric telescopic rod 8. Sound holes 16 are evenly formed on the side of the alarm 15 away from the pressure sensor 12. A second connecting wire 14 is fixedly connected to one side of the water collection box 10. The other end of the second connecting wire 14 is fixedly connected to the central part of the bottom surface of the anti-falling net body 6. By setting another pressure value greater than the pressure value when the water collection box 10 is full of water for the pressure sensor 12, when a person accidentally falls on the anti-falling net body 6, the central part of the anti-falling net body 6 will drop. At this time, the second connecting wire 14 will pull the water collection box 10, thereby applying greater pressure to the spring 11, causing the pressure sensor 12 (the pressure sensor 12 starts the alarm 15 through the controller) to start the alarm 15 (emit sound waves) for alarm, so that passers-by around can timely discover the person who has fallen on the anti-falling net body 6, thereby further improving the safety of the well pipe 1).

[0033] The inner wall of the alarm 15 is fixedly connected with a hollow elastic plate 17, and the elastic plate 17 is used to block the sound outlet hole 16. A puncturing mechanism is arranged in the alarm 15. Since the environment inside the well pipe 1 is relatively humid, the electronic components inside the alarm 15 are prone to being damaged by moisture. At this time, the elastic plate 17 can be used to block the sound outlet hole 16, so as to prevent moisture from entering the alarm 15 and damaging the electronic components. When the alarm 15 needs to sound, the puncturing mechanism will puncture the elastic plate 17, so that the alarm 15 can sound normally.

[0034] The puncturing mechanism includes a sliding plate 19 which is slidably connected to the bottom surface of the inner wall of the alarm 15. The side of the sliding plate 19 close to the elastic plate 17 is uniformly fixedly connected with puncturing cones. The top end of the sliding plate 19 is fixedly connected with a cylinder 18. A connecting groove 22 is formed in the top end of the alarm 15. The surface of the cylinder 18 fits with the connecting groove 22, and the cylinder 18 and the connecting groove 22 are arranged in a staggered manner. One side of the water collecting box 10 close to the alarm 15 is fixedly connected with a connecting rod 20, and the other end of the connecting rod 20 is fixedly connected with a push plate 21. When the water collecting box 10 is pulled by the second connecting line 14, the water collecting box 10 will drive the connecting rod 20 to move downward. At this time, the push plate 21 will enter the connecting groove 22 to push the cylinder 18. At this time, the cylinder 18 will drive the sliding plate 19 to move toward the side close to the elastic plate 17, so that the puncturing cones on the sliding plate 19 puncture the elastic plate 17 and no longer seal the sound outlet hole 16, playing a role in automatically puncturing the elastic plate 17.

[0035] The inner wall of the well pipe 1 is fixedly connected with a hollow ring 23. The bottom surface of the anti-falling net body 6 is located at the central part of the hollow ring 23. The bottom surface of the hollow ring 23 is hermetically slidably connected with a sliding ring 24, and the bottom surface of the sliding ring 24 is fixedly connected with an output rod 9. A group of air outlet holes 25 are formed in the side wall of the hollow ring 23. When the output rod 9 of the electric telescopic rod 8 moves up and down, it will drive the sliding ring 24 to move. At this time, the sliding ring 24 will move back and forth in the hollow ring 23, so that the gas in the hollow ring 23 is blown onto the anti-falling net body 6 from the air outlet holes 25, thereby blowing off the impurities on the anti-falling net body 6, further improving the cleaning effect on the anti-falling net body 6. At the same time, the blown air can accelerate the drying speed of the anti-falling net body 6 after the rain stops, reducing the corrosion of the anti-falling net body 6 by the rain.

[0036] The inner wall of the hollow ring 23 is fixedly connected with a hollow fixing rod 27 corresponding to the air outlet 25. The other end of the fixing rod 27 is fixedly installed with a nozzle 28. The surface of the fixing rod 27 is communicated with an elastic hollow block 26, and the hollow block 26 stores insecticide. Since the environment inside the well pipe 1 is relatively complex and there are likely to be many small insects, these small insects may bite the anti-falling net body 6, causing damage to the anti-falling net body 6. When the sliding ring 24 is pushed, the sliding ring 24 will squeeze the hollow block 26, so that the insecticide in the hollow block 26 enters the fixing rod 27 and then is sprayed from the nozzle 28 onto the anti-falling net body 6. Through the above mechanism, the effect of killing insects on the anti-falling net body 6 can be achieved, preventing the anti-falling net body 6 from being bitten and damaged by insects.

[0037] The inner wall of the water inlet channel 29 on the well pipe 1 is fixedly connected with a sponge 30 block. A chute 31 communicated with the water inlet channel 29 is opened in the well pipe 1, and a floating plate 32 is slidably connected to the inner wall of the chute 31. Since the rainwater entering from the water inlet channel 29 contains impurities, these impurities will enter the water collection box 10 and remain. Over time, more and more impurities will accumulate, causing the water collection box 10 to become heavy and accidentally trigger the pressure sensor 12. At this time, the sponge 30 block can be used to filter the water entering from the water inlet channel 29, so that the impurities in the water cannot enter the water collection box 10, playing a role in preventing the pressure sensor 12 from being accidentally triggered. When the rainwater passes through the water inlet channel 29, it will be blocked by the sponge 30 block, and the inner diameter of the water inlet channel 29 itself is relatively small. At this time, the water fills the water inlet channel 29, causing the floating plate 32 to move upward in the chute 31 by means of the water. After the rain stops, the floating plate 32 will move downward to scrape the impurities on the surface of the sponge 30 block, thus achieving the effect of cleaning the sponge 30 block.

[0038] Embodiment 2

[0039] As Figure 7As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a discharge trough 33 connected to the water inlet channel 29 is provided in the well pipe 1, and one end of the discharge trough 33 away from the water inlet channel 29 extends into the well pipe 1, and a cavity 35 connected to the discharge trough 33 is provided in the well pipe 1, and a rectangular groove connected to the water inlet channel 29 is provided on the top surface of the cavity 35, and a pressure plate 38 is sealingly and slidably connected to the inner wall of the rectangular groove, and the other end of the pressure plate 38 is fixedly connected to the floating plate 32, and a pressure block 36 is sealingly and slidably connected to the inner wall of the slide groove 31, and a vertical long groove 37 is provided on the pressure block 36, and a hollow elastic block 34 is fixedly connected to the side of the pressure block 36 close to the discharge trough 33, and the side wall of the elastic block 34 is in contact with the inner wall of the discharge trough 33; when the floating plate 32 moves downward, impurities on the sponge 30 are cleaned. When the impurities are cleaned, they will fall on the elastic block 34 of the discharge trough 33. When the floating plate 32 moves to a lower position, the pressing plate 38 will enter the rectangular groove. At this time, the pressing plate 38 will continue to move downward under the gravity of the floating plate 32, so that the pressing plate 38 squeezes the gas in the cavity 35, so that the gas pushes the pressing block 36. At this time, the pressing block 36 will compress and deform the elastic block 34, so that the impurities in the elastic block 34 fall into the long groove 37 of the pressing block 36, and then fall from the long groove 37 to the discharge trough 33 for discharge, which plays a role in discharging the impurities cleaned from the sponge 30. When water enters the water inlet channel 29, the floating plate 32 will rise (the inner diameter of the long groove 37 is much smaller than the water inlet channel 29, and the water can still fill the water inlet channel 29 at this time), and then the elastic block 34 will restore to seal the discharge trough 33, and at the same time push the pressing block 36 to reset.

[0040] Working principle: The fixed hook 4 is made of steel bars, and the roadbed 2 is formed by pouring C30 ordinary concrete. The fixed hook 4 is poured into the roadbed 2. By adding the embedded fixed hook 4 in the roadbed 2 and then tying the side rope 5 to the fixed hook 4, the anti-fall net body 6 will be fixed in the well pipe 1, improving the safety factor and strengthening the firmness of the wellhead. In the case of the missing manhole cover, it can also play a role in preventing falls, solving the risk of personnel falling and getting injured after the manhole cover is damaged and missing; by means of the ring bar 7, a group of fixed hooks 4 can form a whole, thus strengthening the fixing effect of the fixed hook 4 in the roadbed 2 and preventing the fixed hook 4 from falling off the roadbed 2 when a person falls on the anti-fall net; when the well pipe 1 drains water, rainwater will pass through the anti-fall net body 6. At this time, the impurities carried in the rainwater will pass through the anti-fall net body 6, and some impurities will remain on the anti-fall net body 6, making the anti-fall net body 6 dirty, resulting in pedestrians falling on the anti-fall net body 6 being soiled by the impurities. At this time, when it rains, the rainwater on the roadbed 2 will flow into the well pipe 1 through the water inlet channel 29, and then the water will flow into the water collection box 10. At this time, the water collection box 10 will become heavier and move downward, thus providing pressure on the spring 11. At this time, the pressure sensor 12 (set the pressure value of the pressure sensor 12 so that it will start the electric telescopic rod 8 when it is under pressure) will sense the pressure and start the electric telescopic rod 8 (the electric telescopic rod 8 starts for about 1H - 2H). At this time, the output rod 9 will move up and down back and forth, making the first connecting line 13 pull the anti-fall net body 6 to shake, playing a role in shaking off the impurities mixed in the rainwater from the anti-fall net body 6; by setting a pressure value greater than the pressure when the water collection box 10 is full of water for the pressure sensor 12, when a person accidentally falls on the anti-fall net body 6, the central part of the anti-fall net body 6 will drop. At this time, the second connecting line 14 will pull the water collection box 10, thus applying greater pressure to the spring 11, making the pressure sensor 12 (the pressure sensor 12 starts the alarm 15 through the controller) start the alarm 15 (emit sound waves) for alarm, so that the pedestrians passing by can timely discover the person who has fallen on the anti-fall net body 6, thus further improving the safety of the well pipe 1; since the environment in the well pipe 1 is relatively humid, the electronic components in the alarm 15 are easily damaged by moisture. At this time, the elastic plate 17 can be used to block the sound outlet hole 16, thus achieving the effect of preventing moisture from entering the alarm 15 and damaging the electronic components. When the alarm 15 needs to sound, the piercing mechanism will pierce the elastic plate 17, so that the alarm 15 can normally emit sound; when the water collection box 10 is pulled by the second connecting line 14, the water collection box 10 will drive the connecting rod 20 to move downward. At this time, the push plate 21 will enter the connecting groove 22 and push the cylinder 18. At this time, the cylinder 18 will drive the sliding plate 19 to move towards the side close to the elastic plate 17, so that the piercing cone on the sliding plate 19 pierces the elastic plate 17 and no longer seals the sound outlet hole 16, playing a role in automatically piercing the elastic plate 17;During the up and down movement of the output rod 9 of the electric telescopic rod 8, the slip ring 24 will be driven to move. At this time, the slip ring 24 will move back and forth within the hollow ring 23, causing the gas within the hollow ring 23 to blow from the air outlet hole 25 onto the anti-falling net body 6, thereby blowing off the impurities on the anti-falling net body 6, further improving the cleaning effect of the anti-falling net body 6. At the same time, the blown air can accelerate the drying speed of the anti-falling net body 6 after the rain stops, reducing the corrosion of the anti-falling net body 6 by the rain; since the environment within the well pipe 1 is relatively complex and there are likely to be many small insects, these small insects may bite the anti-falling net body 6 at this time, causing damage to the anti-falling net body 6. When the slip ring 24 is pushed, the slip ring 24 will squeeze the hollow block 26, causing the insecticide within the hollow block 26 to enter the fixed rod 27 and then be sprayed onto the anti-falling net body 6 from the nozzle 28. Through the above mechanism, the effect of killing insects on the anti-falling net body 6 can be achieved, preventing the anti-falling net body 6 from being bitten and damaged by insects; since the rainwater entering from the water inlet flow channel 29 contains impurities, these impurities will enter the water collection box 10 and remain. Over time, more and more impurities will accumulate, causing the water collection box 10 to become heavy and mis-trigger the pressure sensor 12. At this time, the sponge 30 can be used to filter the water entering from the water inlet flow channel 29, preventing the impurities in the water from entering the water collection box 10, thus playing a role in preventing the pressure sensor 12 from being mis-triggered. When the rainwater passes through the water inlet flow channel 29, it will be blocked by the sponge 30, and the inner diameter of the water inlet flow channel 29 itself is relatively small. At this time, the water fills the water inlet flow channel 29, causing the floating plate 32 to move upward within the sliding groove 31 by means of the water. After the rain stops, the floating plate 32 will move downward to scrape the impurities on the surface of the sponge 30, thereby achieving the effect of cleaning the sponge 30.;

[0041] The above front, back, left, right, up, and down are all based on the Figure 1 description in the accompanying drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention.

[0043] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An in - well anti - falling net adding structure, Characterized in that: It includes a roadbed (2), a well pipe (1) and an anti - falling net body (6); the well pipe (1) is installed in the roadbed (2), a group of fixed hooks (4) are embedded in the roadbed (2), a group of reserved holes (3) aligned with the fixed hooks (4) are opened on the side wall of the well pipe (1), one end of the fixed hook (4) close to the well pipe (1) extends into the reserved hole (3), a circular side rope (5) is fixedly connected to the side of the anti - falling net body (6), one end of the fixed hook (4) located in the roadbed (2) is bent 90 degrees for anchoring, and the other end of the fixed hook (4) is bent 270 degrees for hanging the side rope (5); A group of hoop bars (7) are arranged on the surface of a group of the fixed hooks (4), and the hoop bars (7) are tied to the fixed hooks (4) through a steel bar framework; An electric telescopic rod (8) is fixedly connected to the inner wall of the well pipe (1) through a bracket, the top end of the electric telescopic rod (8) is slidably connected with an output rod (9), a water collecting box (10) is slidably connected to the surface of the output rod (9), one side of the water collecting box (10) away from the anti - falling net body (6) is in contact with the inner wall of the well pipe (1), a water inlet flow channel (29) is opened in the roadbed (2), one end of the water inlet flow channel (29) extends to the top surface of the roadbed (2), the other end of the water inlet flow channel (29) extends into the well pipe (1) and is located above the water collecting box (10), a water - falling hole is opened on the bottom surface of the water collecting box (10), the inner diameter of the water - falling hole is much smaller than the inner diameter of the water inlet flow channel (29), a pressure sensor (12) is fixedly connected to the side wall of the electric telescopic rod (8), a spring (11) is fixedly connected between the pressure sensor (12) and the water collecting box (10), the pressure sensor (12) controls the electric telescopic rod (8) through a controller, a first connecting line (13) is fixedly connected to the surface of the output rod (9), and the other end of the first connecting line (13) is fixedly connected to the central part of the bottom surface of the anti - falling net body (6).

2. An in - well anti - falling net adding structure according to claim 1, Characterized in that: An alarm (15) is fixedly connected to the side of the pressure sensor (12) away from the electric telescopic rod (8), sound - emitting holes (16) are evenly opened on the side of the alarm (15) away from the pressure sensor (12), a second connecting line (14) is fixedly connected to one side of the water collecting box (10), and the other end of the second connecting line (14) is fixedly connected to the central part of the bottom surface of the anti - falling net body (6).

3. An in - well anti - falling net adding structure according to claim 2, Characterized in that: A hollow elastic plate (17) is fixedly connected to the inner wall of the alarm (15), the elastic plate (17) is used to block the sound - emitting holes (16), and a puncturing mechanism is arranged in the alarm (15).

4. An in - well anti - falling net adding structure according to claim 3, Characterized in that: The puncturing mechanism includes a sliding plate (19), which is slidably connected to the bottom surface of the inner wall of the alarm (15). A puncturing cone is uniformly and fixedly connected to one side of the sliding plate (19) close to the elastic plate (17). A cylinder (18) is fixedly connected to the top end of the sliding plate (19). A connecting groove (22) is formed in the top end of the alarm (15). The surface of the cylinder (18) fits with the connecting groove (22), and the cylinder (18) and the connecting groove (22) are arranged in a staggered manner. A connecting rod (20) is fixedly connected to one side of the water collecting box (10) close to the alarm (15). The other end of the connecting rod (20) is fixedly connected to a pushing plate (21).

5. The additional structure for the anti-falling net in the well according to claim 1, characterized in that: A hollow ring (23) is fixedly connected to the inner wall of the well pipe (1). The bottom surface of the anti-falling net body (6) is located at the central part of the hollow ring (23). A sliding ring (24) is hermetically and slidably connected to the bottom surface of the hollow ring (23). The bottom surface of the sliding ring (24) is fixedly connected to the output rod (9). A group of air outlet holes (25) are formed in the side wall of the hollow ring (23).

6. The additional structure for the anti-falling net in the well according to claim 5, characterized in that: A hollow fixed rod (27) corresponding to the air outlet hole (25) is fixedly connected to the inner wall of the hollow ring (23). The other end of the fixed rod (27) is fixedly installed with a nozzle (28). The surface of the fixed rod (27) is communicated with an elastic hollow block (26), and an insecticide is stored in the hollow block (26).

7. The additional structure for the anti-falling net in the well according to claim 1, characterized in that: A sponge block (30) is fixedly connected to the inner wall of the water inlet flow channel (29) on the well pipe (1). A sliding groove (31) communicated with the water inlet flow channel (29) is formed in the well pipe (1). A floating plate (32) is slidably connected to the inner wall of the sliding groove (31).

8. The additional structure for the anti-falling net in the well according to claim 7, characterized in that: A discharge slot (33) communicated with the water inlet flow channel (29) is formed in the well pipe (1). One end of the discharge slot (33) far from the water inlet flow channel (29) extends into the well pipe (1). A cavity (35) communicated with the discharge slot (33) is formed in the well pipe (1). A rectangular slot communicated with the water inlet flow channel (29) is formed in the top surface of the cavity (35). A pressing plate (38) is hermetically and slidably connected to the inner wall of the rectangular slot. The other end of the pressing plate (38) is fixedly connected to the floating plate (32). A pressing block (36) is hermetically and slidably connected to the inner wall of the sliding groove (31). A vertical long slot (37) is formed in the pressing block (36). A hollow elastic block (34) is fixedly connected to one side of the pressing block (36) close to the discharge slot (33). The side wall of the elastic block (34) fits with the inner wall of the discharge slot (33).

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