Underwater dredging equipment for drainage pipe network

Abstract

The present invention discloses an underwater dredging device for a drainage network, specifically relating to the field of drainage pipe dredging, comprising a drainage pipe, a positioning ring fixedly installed inside the drainage pipe, a positioning support frame fixedly installed inside the positioning ring, a first I-shaped roller rotatably connected to the outside of the positioning support frame, a first volute spring provided inside the first I-shaped roller, one end of the first volute spring clamped with a first connecting rope, the first connecting rope wrapped around the outside of the first I-shaped roller, and one end of the first connecting rope sleeved with an automatic storage barrel. The present invention is provided with an automatic storage barrel, which collects silt so that the weight increases and decreases, causing the movable cantilever to deflect, and utilizes the second spring rebound to push the movable push ring to hit the prefabricated coating barrel, so that the cleaning push ring slides in the drainage pipe, thereby pushing the silt out, and at the same time driving the annular scraper to slide inside the drainage pipe, preventing the silt from solidifying on the inner wall of the drainage pipe, thereby achieving a self-cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage pipe desilting, and more particularly to underwater desilting equipment for a drainage pipe network. Background Art

[0002] Drainage network desilting, also known as pipeline desilting, involves clearing the pipes and removing silt to maintain long-term flow and prevent urban flooding. Pipeline desilting has become a crucial task for drainage departments. Large amounts of debris and cement sand from construction sites can cause sedimentation and siltation in drainage pipes, leading to blockages. Failure to perform pipeline desilting and dredging can lead to sewage overflow, environmental pollution, and inconvenience for residents.

[0003] The traditional dredging method is to use a high-pressure cleaning vehicle to clean the silt in the pipe to the outside of the pipe, and then transport it to a designated place. If the pipe needs to be cleaned until there is no silt, the inner wall of the pipe must be cleaned repeatedly. However, due to the complex arrangement of the pipes and the silt on the inner wall of the pipe solidifying, the high-pressure cleaning vehicle cannot be cleaned. In this case, only construction workers can enter to clean. Nowadays, drainage pipes need to be cleaned regularly, otherwise the silt will cause pipe blockage after precipitation and solidification, and manual cleaning is inconvenient. Therefore, how to design an underwater dredging equipment for drainage pipe networks has become a problem that we currently need to solve. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an underwater dredging equipment for a drainage network, which collects silt through an automatic storage barrel, so that the weight increases and decreases, driving the movable trigger rod to descend, so that the annular limit plate presses the corresponding pressure rod to deflect the movable cantilever, so that the corresponding locking rod loses the engagement with the cleaning push ring, and the second spring rebounds to push the movable push ring to hit the prefabricated covering barrel, so that the cleaning push ring slides in the drainage pipe to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an underwater dredging device for a drainage network, comprising a drainage pipe, a positioning ring fixedly installed inside the drainage pipe, a positioning support frame fixedly installed on the inner side of the positioning ring, a first I-shaped roller rotatably connected to the outer side of the positioning support frame, a first volute spring provided inside the first I-shaped roller, a first connecting rope clamped at one end of the first volute spring, the first connecting rope wrapped around the outer side of the first I-shaped roller, and an automatic storage barrel sleeved at one end of the first connecting rope;

[0006] The top of the automatic material storage barrel is provided with a through hole, a filter screen is clamped at the through hole of the automatic material storage barrel, a limiting barrel is fixedly installed on the inner side of the positioning ring, a first spring is provided on the inner side of the limiting barrel, a movable trigger rod is slidably connected to the inner side of the limiting barrel, the automatic material storage barrel and the movable trigger rod are arranged in the same vertical line, and an annular limiting plate is fixedly installed on the outer side of the movable trigger rod;

[0007] The inner side of the positioning ring is fixedly installed with a fixed support frame, the outer side of the fixed support frame is hinged with a movable cantilever, one end of the movable cantilever is fixedly installed with a corresponding pressure rod, the corresponding pressure rod is arranged at the bottom of the annular limit plate, the end of the movable cantilever away from the corresponding pressure rod is fixedly installed with a positioning pressure head, the weight of the positioning pressure head is greater than the weight of the corresponding pressure rod, the bottom of the positioning pressure head is fixedly installed with a corresponding locking rod, and the outer side of the corresponding locking rod is clamped with a cleaning push ring;

[0008] A transverse round rod is fixedly installed inside the positioning ring, a second spring is sleeved on the outside of the transverse round rod, a movable push ring is slidably connected to the outside of the transverse round rod, and a prefabricated coating cylinder is inserted at one end of the transverse round rod, and the prefabricated coating cylinder is fixedly installed inside the cleaning push ring.

[0009] In a preferred embodiment, the bottom end of the corresponding locking rod is semicircular, and a semicircular groove is provided on the inner side of the cleaning push ring.

[0010] In a preferred embodiment, an annular fixing plate is fixedly mounted on one side of the cleaning pusher ring, and an annular scraper is fixedly mounted on the outer side of the annular fixing plate.

[0011] In a preferred embodiment, the cleaning push ring is rotatably connected to a rotating wheel inside, a corresponding rotating shaft is fixedly connected to one side of the rotating wheel, and an anti-corrosion interception layer is wound around the outer side of the corresponding rotating shaft.

[0012] In a preferred embodiment, the anti-corrosion interception layer has high stretchability and resilience, and the cross-sectional area of ​​the bottom end port of the anti-corrosion interception layer in the stretched state is larger than the cross-sectional area of ​​the bottom end port of the inner hole of the cleaning pusher ring.

[0013] In a preferred embodiment, a magnet is bonded to the side of the anti-corrosion interception layer, and a plurality of corresponding arc-shaped card rows are fixedly installed on the inner side of the cleaning push ring, and magnetic grooves are provided at the card openings of the plurality of corresponding arc-shaped card rows.

[0014] In a preferred embodiment, a positioning round rod is fixedly installed inside the positioning ring, and a second I-shaped roller is rotatably connected to the outside of the positioning round rod. A second spiral spring is provided inside the second I-shaped roller, and a second connecting rope is wrapped around the outside of the second I-shaped roller. One end of the second connecting rope is clamped with the second spiral spring.

[0015] In a preferred embodiment, the end of the second connecting rope away from the second volute spring is sleeved with a reinforcement lock buckle, the inner side of the reinforcement lock buckle is clamped with an arc-shaped lock frame, and the arc-shaped lock frame is fixedly installed on one side of the cleaning push ring.

[0016] In a preferred embodiment, a support rod is fixedly installed on the inner bottom of the automatic storage barrel, a limiting circular plate is fixedly installed on the top of the support rod, and a third spring is fixedly connected to the bottom of the limiting circular plate.

[0017] In a preferred embodiment, one end of the third spring is fixedly connected to a movable sealing cover, and the cross-sectional area of ​​the bottom end port of the movable sealing cover is larger than the cross-sectional area of ​​the bottom end port of the movable trigger rod.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention is provided with an automatic storage barrel, which collects sludge through the automatic storage barrel, so that the weight increases and descends, driving the movable trigger rod to descend, so that the annular limit plate presses the corresponding pressure rod to deflect the movable cantilever, so that the corresponding locking rod and the cleaning push ring lose engagement, and the second spring rebounds to push the movable push ring to hit the prefabricated coating barrel, so that the cleaning push ring slides in the drain pipe, thereby pushing the sludge out, and at the same time driving the annular scraper to slide on the inner side of the drain pipe to prevent the sludge from solidifying on the inner wall of the drain pipe, thereby achieving a self-cleaning effect and preventing the drain pipe from being blocked;

[0020] 2. The present invention is provided with an anti-corrosion interception layer. Under normal circumstances, the anti-corrosion interception layer will not seal the inner hole of the cleaning pusher ring, thereby not hindering the flow of water and sludge. When the cleaning pusher ring slides, it drives the rotating wheel to rotate, which will drive the corresponding rotating shaft to rotate, thereby causing the anti-corrosion interception layer to slide down and spread. When the anti-corrosion interception layer is unfolded, the internal magnet contacts the corresponding arc-shaped card array, and the magnet and the corresponding arc-shaped card array magnetic groove are attracted to each other, so that the anti-corrosion interception layer deforms and stretches to cover the inner hole of the cleaning pusher ring, so that the cleaning pusher ring can push out a large amount of sludge when sliding.

[0021] 3. The present invention is provided with a second vortex spring. After the cleaning push ring slides to the maximum distance, the second vortex spring rebounds to drive the second I-shaped roller to reverse, thereby winding the second connecting rope to pull the cleaning push ring back to slide and reset. When the cleaning push ring slides back, the prefabricated covering cylinder is plugged into the horizontal round rod, thereby pushing the movable push ring to squeeze the second spring, and then the corresponding locking rod falls and engages with the semicircular groove of the cleaning push ring, thereby limiting the cleaning push ring, thereby achieving the function of automatic reset and cyclic cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a structural cross-sectional view of the present invention.

[0024] Figure 3 For the present invention Figure 2 A magnified view of the structure of part A.

[0025] Figure 4 For the present invention Figure 2 Enlarged view of the B structure.

[0026] Figure 5 For the present invention Figure 2 Enlarged view of the C part structure.

[0027] Figure 6 It is a structural schematic diagram of the cleaning pusher ring of the present invention.

[0028] Figure 7 For the present invention Figure 2 Enlarged view of the D structure.

[0029] Figure 8 For the present invention Figure 2 Enlarged view of the E part structure.

[0030] The accompanying drawings are marked as follows: 1. Drain pipe; 2. Positioning ring; 3. Positioning support frame; 4. First I-shaped roller; 5. First scroll spring; 6. First connecting rope; 7. Automatic storage barrel; 8. Limiting barrel; 9. First spring; 10. Movable trigger lever; 11. Annular limiting plate; 12. Fixed support frame; 13. Movable cantilever; 14. Corresponding pressure rod; 15. Positioning pressure head; 16. Corresponding locking rod; 17. Cleaning push ring; 18. Horizontal round rod; 19. Second spring Spring; 20. Movable push ring; 21. Prefabricated coating cylinder; 22. Anti-corrosion interception layer; 23. Corresponding arc-shaped card row; 24. Positioning round rod; 25. Second I-shaped roller; 26. Second volute spring; 27. Second connecting rope; 28. Reinforced lock buckle; 29. ​​Arc-shaped lock frame; 30. Support rod; 31. Limiting circular plate; 32. Third spring; 33. Movable sealing cover; 34. Rotating wheel; 35. Corresponding rotating shaft; 36. Annular fixing plate; 37. Annular scraper. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Refer to the attached instructions Figure 1-8 , an underwater desilting device for a drainage network according to an embodiment of the present invention, such as Figure 1 As shown, it includes a drain pipe 1, and a positioning ring 2 is fixedly installed inside the drain pipe 1. Figure 3 When the silt in the automatic storage barrel 7 is discharged, the weight of the automatic storage barrel 7 is reduced, and the rebound of the first volute spring 5 drives the first I-shaped roller 4 to rotate and wind the first connecting rope 6, thereby driving the automatic storage barrel 7 to rise;

[0033] like Figure 1As shown, a through hole is provided on the top of the automatic storage barrel 7, and a filter screen is connected to the through hole of the automatic storage barrel 7. By utilizing the arrangement of the through hole and the filter screen, when water drives the silt to flow, the silt enters the interior of the automatic storage barrel 7 from the through hole, while the large impurities entrained in the silt are isolated by the filter screen and cannot enter the interior of the automatic storage barrel 7. Figure 4 As shown, a limiting cylinder 8 is fixedly installed on the inner side of the positioning ring 2, and a first spring 9 is provided on the inner side of the limiting cylinder 8. A movable trigger rod 10 is slidably connected to the inner side of the limiting cylinder 8, and the movable trigger rod 10 is limited by the limiting cylinder 8. The automatic storage barrel 7 and the movable trigger rod 10 are arranged in the same vertical line, and an annular limiting plate 11 is fixedly installed on the outer side of the movable trigger rod 10. When the automatic storage barrel 7 slides down, it contacts the movable trigger rod 10, driving the movable trigger rod 10 to slide down while squeezing the first spring 9. When the automatic storage barrel 7 rises and disengages from the movable trigger rod 10, the first spring 9 is used to rebound and drive the movable trigger rod 10 to rise and reset;

[0034] like Figure 4 As shown, a fixed support frame 12 for supporting is fixedly installed on the inner side of the positioning ring 2, and a movable cantilever 13 is hinged on the outer side of the fixed support frame 12. A corresponding pressure rod 14 is fixedly installed on one end of the movable cantilever 13. The corresponding pressure rod 14 is arranged at the bottom of the annular limiting plate 11, and a positioning pressure head 15 is fixedly installed on the end of the movable cantilever 13 away from the corresponding pressure rod 14. The weight of the positioning pressure head 15 is greater than the weight of the corresponding pressure rod 14. The bottom of the positioning pressure head 15 is fixedly installed with a The corresponding locking rod 16 is clamped with a cleaning push ring 17 on the outer side of the corresponding locking rod 16. When the movable trigger rod 10 slides down, the annular limit plate 11 is driven to contact the corresponding pressure rod 14, causing one end of the movable cantilever 13 to tilt up, thereby losing the clamping connection between the corresponding locking rod 16 and the cleaning push ring 17. When the movable trigger rod 10 slides up, the limit of the annular limit plate 11 is lost, and the weight of the positioning pressure head 15 is greater than the corresponding pressure rod 14, so that the corresponding pressure rod 14 tilts up;

[0035] like Figure 5As shown, a transverse round rod 18 is fixedly installed inside the positioning ring 2, and a second spring 19 is sleeved on the outside of the transverse round rod 18. A movable push ring 20 is slidably connected to the outside of the transverse round rod 18. A prefabricated coating cylinder 21 is inserted at one end of the transverse round rod 18. The prefabricated coating cylinder 21 is fixedly installed inside the cleaning push ring 17. When the positioning pressure head 15 is tilted and the corresponding locking rod 16 and the cleaning push ring 17 are no longer engaged, the second spring 19 is used to rebound and push the movable push ring 20 to hit the prefabricated coating cylinder 21, so that the cleaning push ring 17 slides in the drain pipe 1, thereby pushing the silt out. The bottom end of the locking rod 16 is semicircular, and a semicircular groove is provided on the inner side of the cleaning push ring 17. Through the semicircular setting of the bottom end of the corresponding locking rod 16, when the cleaning push ring 17 resets the prefabricated coating cylinder 21 and is plugged into the horizontal round rod 18, the movable push ring 20 is pushed to squeeze the second spring 19. At this time, the inner side of the cleaning push ring 17 contacts the bottom end of the corresponding locking rod 16. The semicircular setting is used to reduce the resistance, so that the movable cantilever 13 is slightly lifted and the cleaning push ring 17 is fitted with the positioning ring 2. Then the corresponding locking rod 16 falls again and is engaged with the semicircular groove of the cleaning push ring 17. Figure 2 As shown, an annular fixing plate 36 is fixedly installed on one side of the cleaning push ring 17, and an annular scraper 37 is fixedly installed on the outer side of the annular fixing plate 36. When the cleaning push ring 17 slides, it will drive the annular scraper 37 to slide on the inner side of the drain pipe 1, and the silt on the inner side of the drain pipe 1 will be scraped off by the annular scraper 37 to prevent the silt from accumulating and solidifying.

[0036] What needs to be explained with respect to the above technical solution is that, when the present device is actually used, when the water in the drainage pipe 1 drives the silt to flow, the arrangement of the through-hole of the automatic storage barrel 7 and the filter screen is utilized. When the water drives the silt to flow, the silt enters the interior of the automatic storage barrel 7 from the through-hole, while the large impurities entrained in the silt are isolated by the filter screen and will not be able to enter the interior of the automatic storage barrel 7. When the silt contained in the automatic storage barrel 7 gradually increases, the gravity of the automatic storage barrel 7 increases and it will slide down, and at the same time drive the first I-shaped roller 4 to rotate, so that the first scroll spring 5 is in a tightened state. When the automatic storage barrel 7 is down, When the movable trigger rod 10 slides, it contacts the movable trigger rod 10, driving the movable trigger rod 10 to slide down and squeezing the first spring 9. When the movable trigger rod 10 slides down, it drives the annular limit plate 11 to contact the corresponding pressure rod 14, so that one end of the movable cantilever 13 is tilted, so that the corresponding locking rod 16 and the cleaning push ring 17 lose the clamping connection. When the positioning pressure head 15 is tilted and the corresponding locking rod 16 and the cleaning push ring 17 are no longer clamped, the second spring 19 is used to rebound and push the movable push ring 20 to hit the prefabricated coating cylinder 21, so that the cleaning push ring 17 slides in the drain pipe 1, thereby pushing the silt out and cleaning. When the cleaning push ring 17 slides, it will drive the annular scraper 37 to slide on the inner side of the drain pipe 1, and the annular scraper 37 will scrape the silt inside the drain pipe 1 to prevent the silt from accumulating and solidifying. When the silt in the automatic storage barrel 7 is discharged, the weight of the automatic storage barrel 7 is reduced, and the first volute spring 5 rebounds to drive the first I-shaped roller 4 to rotate and wind the first connecting rope 6, thereby driving the automatic storage barrel 7 to rise. When the automatic storage barrel 7 rises and disengages from the movable trigger rod 10, the first spring 9 rebounds to drive the movable trigger rod 10 to rise and reset. When the movable trigger rod 10 slides up, it loses the After the annular limiting plate 11 is limited, the weight of the positioning pressure head 15 is greater than the corresponding pressure rod 14, so that the corresponding pressure rod 14 is tilted. At this time, the cleaning push ring 17 resets the prefabricated coating cylinder 21 and is plugged into the horizontal round rod 18, thereby pushing the movable push ring 20 to squeeze the second spring 19. At this time, the inner side of the cleaning push ring 17 contacts the bottom end of the corresponding locking rod 16, and the semicircular setting is used to reduce the resistance, so that after the movable cantilever 13 is slightly lifted, the cleaning push ring 17 is fitted with the positioning ring 2, and then the corresponding locking rod 16 falls again and engages with the semicircular groove of the cleaning push ring 17.

[0037] Example 2: Figure 6As shown, the internal rotation of the cleaning push ring 17 is connected to a rotating wheel 34, and one side of the rotating wheel 34 is fixedly connected to a corresponding rotating shaft 35, and the outer side of the corresponding rotating shaft 35 is wrapped with an anti-corrosion intercepting layer 22, and the anti-corrosion intercepting layer 22 has high stretchability and resilience. The cross-sectional area of ​​the bottom port of the anti-corrosion intercepting layer 22 in the stretched state is larger than the cross-sectional area of ​​the bottom port of the inner hole of the cleaning push ring 17, and a magnet is bonded to the side of the anti-corrosion intercepting layer 22. A plurality of corresponding arc-shaped card rows 23 are fixedly installed on the inner side of the cleaning push ring 17, and magnetic grooves are provided at the card openings of the plurality of corresponding arc-shaped card rows 23. Through the setting of the anti-corrosion intercepting layer 22, when the anti-corrosion intercepting layer 22 is in normal state, it will not seal the inner hole of the cleaning push ring 17, thereby not hindering the flow of water and silt. When the anti-corrosion intercepting layer 22 is in the stretched state, it will seal the inner hole of the cleaning push ring 17, so that a large amount of silt can be pushed out when the cleaning push ring 17 slides.

[0038] What needs to be explained about the above technical solution is that when the present device is actually used, the cleaning push ring 17 slides, and the inner wall of the drain pipe 1 is pressed against and rolled by the rotating wheel 34, so that the cleaning push ring 17 slides more smoothly. When the rotating wheel 34 rotates, it drives the corresponding rotating shaft 35 to rotate, thereby causing the anti-corrosion interception layer 22 to slide down and spread. When the anti-corrosion interception layer 22 is unfolded, the internal magnet contacts the corresponding arc-shaped card array 23, and the magnet and the magnetic groove of the corresponding arc-shaped card array 23 are attracted to each other, thereby causing the anti-corrosion interception layer 22 to deform. Stretch, thereby covering the inner hole of the cleaning push ring 17. When the magnets of the corresponding arc-shaped card array 23 are completely adsorbed and fixed to the magnetic groove, the cleaning push ring 17 will drive a large amount of silt to be discharged from the inside of the drain pipe 1 when sliding. When the cleaning push ring 17 slides and resets, the rotating wheel 34 drives the corresponding rotating shaft 35 to rotate when rotating, thereby winding the anti-corrosion intercepting layer 22. Under the action of tension, the magnets inside the anti-corrosion intercepting layer 22 are separated from the corresponding arc-shaped card array 23, so that the anti-corrosion intercepting layer 22 is completely wound around the outside of the rotating wheel 34.

[0039] Example 3: Figure 7As shown, a positioning rod 24 for supporting and limiting is fixedly installed inside the positioning ring 2, and a second I-shaped roller 25 is rotatably connected to the outer side of the positioning rod 24. A second vortex spring 26 is provided inside the second I-shaped roller 25, and a second connecting rope 27 is wound around the outer side of the second I-shaped roller 25. When the cleaning push ring 17 slides in the drain pipe 1, the cleaning push ring 17 is connected to the reinforcement lock buckle 28, thereby driving the second connecting rope 27 to extend, so that the second I-shaped roller 25 drives the second vortex spring 26 while rotating. The spring 26 is tightened, and one end of the second connecting rope 27 is clamped with the second spiral spring 26. The end of the second connecting rope 27 away from the second spiral spring 26 is sleeved with a reinforcement lock buckle 28, and the inner side of the reinforcement lock buckle 28 is clamped with an arc-shaped lock frame 29. The arc-shaped lock frame 29 is fixedly installed on one side of the cleaning pusher ring 17. After the cleaning pusher ring 17 slides to the maximum distance, the rebound of the second spiral spring 26 drives the second I-shaped roller 25 to reverse, thereby winding the second connecting rope 27 to pull the cleaning pusher ring 17 back to slide and reset.

[0040] When the cleaning push ring 17 slides back, the prefabricated coating cylinder 21 is plugged into the horizontal round rod 18, thereby pushing the movable push ring 20 to squeeze the second spring 19, and then the corresponding lock rod 16 falls and engages with the semicircular slot of the cleaning push ring 17, thereby limiting the cleaning push ring 17.

[0041] Example 4: Figure 8 As shown, a support rod 30 is fixedly installed on the inner bottom of the automatic storage barrel 7, and a limiting circular plate 31 is fixedly installed on the top of the support rod 30. The bottom of the limiting circular plate 31 is fixedly connected to a third spring 32, and one end of the third spring 32 is fixedly connected to a movable sealing cover 33. The cross-sectional area of ​​the bottom end port of the movable sealing cover 33 is larger than the cross-sectional area of ​​the bottom end port of the movable trigger rod 10. Through the setting of the movable sealing cover 33, the movable sealing cover 33 will seal the automatic storage barrel 7 under normal conditions, so that the silt entering the automatic storage barrel 7 can gradually accumulate, causing the weight of the automatic storage barrel 7 to increase. When the movable sealing cover 33 contacts the movable trigger rod 10 and is lifted up, the movable sealing cover 33 no longer seals the automatic storage barrel 7, and the silt inside the automatic storage barrel 7 will fall out under the action of gravity, so that the weight of the automatic storage barrel 7 is reduced and then it rises and resets.

[0042] It should be noted that with respect to the above technical solution, when the present device is actually used, the movable sealing cover 33 contacts the movable trigger rod 10 when the automatic storage barrel 7 slides down, and then drives the movable trigger rod 10 to slide down and squeeze the first spring 9. When the movable trigger rod 10 slides down to the maximum limit, the movable sealing cover 33 of the automatic storage barrel 7 will be lifted up by the movable trigger rod 10 while continuing to slide down, thereby squeezing the third spring 32. At this time, the movable sealing cover 33 no longer seals the automatic storage barrel 7, so that the silt inside the automatic storage barrel 7 will flow out. Then the weight of the automatic storage barrel 7 is reduced and it rises under the action of the first spiral spring 5, so that the movable sealing cover 33 loses contact with the movable trigger rod 10. Under the rebound force of the third spring 32, the third spring 32 will slide down and reseal the automatic storage barrel 7.

[0043] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0044] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0045] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An underwater desilting device for a drainage network, comprising a drainage pipe (1), characterized in that: A positioning ring (2) is fixedly installed inside the drainage pipe (1), a positioning support frame (3) is fixedly installed on the inner side of the positioning ring (2), a first I-shaped roller (4) is rotatably connected to the outer side of the positioning support frame (3), a first vortex spring (5) is provided inside the first I-shaped roller (4), one end of the first vortex spring (5) is clamped with a first connecting rope (6), the first connecting rope (6) is wound around the outer side of the first I-shaped roller (4), and one end of the first connecting rope (6) is sleeved with an automatic storage barrel (7); The top of the automatic material storage barrel (7) is provided with a through hole, a filter screen is clamped at the through hole of the automatic material storage barrel (7), a limiting barrel (8) is fixedly installed on the inner side of the positioning ring (2), a first spring (9) is provided on the inner side of the limiting barrel (8), a movable trigger rod (10) is slidably connected to the inner side of the limiting barrel (8), the automatic material storage barrel (7) and the movable trigger rod (10) are arranged in the same vertical line, and an annular limiting plate (11) is fixedly installed on the outer side of the movable trigger rod (10); A fixed support frame (12) is fixedly installed on the inner side of the positioning ring (2), a movable cantilever (13) is hinged on the outer side of the fixed support frame (12), a corresponding pressure rod (14) is fixedly installed on one end of the movable cantilever (13), and the corresponding pressure rod (14) is arranged at the bottom of the annular limiting plate (11), and a positioning pressure head (15) is fixedly installed on one end of the movable cantilever (13) away from the corresponding pressure rod (14), the weight of the positioning pressure head (15) is greater than the weight of the corresponding pressure rod (14), and a corresponding locking rod (16) is fixedly installed on the bottom of the positioning pressure head (15), and a cleaning push ring (17) is clamped on the outer side of the corresponding locking rod (16); A transverse round rod (18) is fixedly installed inside the positioning ring (2), a second spring (19) is sleeved on the outside of the transverse round rod (18), a movable push ring (20) is slidably connected to the outside of the transverse round rod (18), and a prefabricated coating cylinder (21) is inserted at one end of the transverse round rod (18), and the prefabricated coating cylinder (21) is fixedly installed inside the cleaning push ring (17); The bottom end of the corresponding locking rod (16) is arranged in a semicircular shape, and a semicircular slot is provided on the inner side of the cleaning push ring (17); A positioning rod (24) is fixedly installed inside the positioning ring (2), and a second I-shaped roller (25) is rotatably connected to the outside of the positioning rod (24). A second volute spring (26) is provided inside the second I-shaped roller (25), and a second connecting rope (27) is wound around the outside of the second I-shaped roller (25). One end of the second connecting rope (27) is connected to the second volute spring (26) in a clamping manner. One end of the second connecting rope (27) away from the second volute spring (26) is sleeved with a reinforcement lock buckle (28), and the inner side of the reinforcement lock buckle (28) is clamped with an arc-shaped lock frame (29), and the arc-shaped lock frame (29) is fixedly installed on one side of the cleaning push ring (17).

2. The underwater desilting equipment for drainage pipe network according to claim 1, characterized in that: An annular fixing plate (36) is fixedly mounted on one side of the cleaning push ring (17), and an annular scraper (37) is fixedly mounted on the outer side of the annular fixing plate (36).

3. The underwater desilting equipment for a drainage network according to claim 2, characterized in that: The cleaning push ring (17) is rotatably connected to a rotating wheel (34) inside, a corresponding rotating shaft (35) is fixedly connected to one side of the rotating wheel (34), and an anti-corrosion interception layer (22) is wound around the outer side of the corresponding rotating shaft (35).

4. The underwater desilting equipment for a drainage network according to claim 3, characterized in that: The anti-corrosion interception layer (22) has high stretchability and resilience, and the cross-sectional area of ​​the bottom end port of the anti-corrosion interception layer (22) in the stretched state is larger than the cross-sectional area of ​​the bottom end port of the inner hole of the cleaning push ring (17).

5. The underwater desilting equipment for a drainage network according to claim 4, characterized in that: A magnet is bonded to the side of the anti-corrosion interception layer (22), and a plurality of corresponding arc-shaped card rows (23) are fixedly installed on the inner side of the cleaning push ring (17), and magnetic grooves are provided at the card openings of the plurality of corresponding arc-shaped card rows (23).

6. The underwater desilting equipment for a drainage network according to claim 1, characterized in that: A support rod (30) is fixedly mounted on the inner bottom of the automatic storage barrel (7), a limiting circular plate (31) is fixedly mounted on the top of the support rod (30), and a third spring (32) is fixedly connected to the bottom of the limiting circular plate (31).

7. The underwater desilting equipment for a drainage network according to claim 6, characterized in that: One end of the third spring (32) is fixedly connected to a movable sealing cover (33), and the cross-sectional area of ​​the bottom end port of the movable sealing cover (33) is larger than the cross-sectional area of ​​the bottom end port of the movable trigger rod (10).

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