Dredging device for water conservancy project

Abstract

The utility model provides a desilting device for a water conservancy project, and relates to the technical field of desilting devices, the desilting device comprises an anti-backflow device, the anti-backflow device comprises a shell, a blocking ring is fixedly installed on the inner wall of the shell, rectangular grooves are formed in the two sides of the shell, and fixing rods are fixedly installed in the rectangular grooves. When suction is not carried out, the reset spring drives the connecting plate to move, the fixing cylinder drives the sliding rod to move, meanwhile, the jacking spring drives the blocking block to move, the inner wall of the blocking ring is blocked, and sludge is prevented from flowing back and being blocked in the suction pipe. The defects that sludge in a suction pipe is prone to backflow, when the sludge is pulled back to a pipeline, accumulated in the pipeline and pulled upwards, the sludge flows out of the pipeline, the sludge easily enters other water layers, the water layers are polluted by the sludge, and the water quality is affected are overcome.

Description

Technical Field

[0001] This utility model relates to the field of dredging device technology, and in particular to a dredging device for water conservancy projects. Background Technology

[0002] Currently, the most common dredging method used in water conservancy projects is suction. However, existing suction pipes have some shortcomings in use. Specifically, when the dredging equipment stops, the sludge in the suction pipe is prone to backflow.

[0003] Once the system is shut down, the silt in the pipeline will flow back. When the pipeline is pulled back, it accumulates inside. When it is pulled upwards, the silt will flow out of the pipeline, easily entering other water layers and polluting them, affecting water quality and leading to a series of water management and treatment challenges. This pollution not only increases the burden of dredging in water conservancy projects but also puts pressure on environmental protection, increasing the cost of subsequent cleanup and restoration. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the existing technology that when the dredging equipment stops, the sludge in the suction pipe is prone to backflow. When the pipe is pulled back, it accumulates in the pipe, and when it is pulled upwards, the sludge flows out of the pipe and can easily enter other water layers, causing the sludge to pollute the water layer and affect the water quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dredging device for water conservancy projects, comprising: an anti-backflow device, the anti-backflow device comprising a shell, a blocking ring fixedly installed on the inner wall of the shell, rectangular grooves provided on both sides of the shell, a fixing rod fixedly installed inside the rectangular grooves, a connecting plate slidably connected to the outside of the fixing rod, a return spring provided outside the fixing rod, a fixing cylinder fixedly installed at one end of the connecting plate, a sliding rod slidably connected inside the fixing cylinder, a tightening spring provided outside the sliding rod, and a blocking block fixedly installed at one end of the sliding rod.

[0006] In a preferred embodiment, one end of the reset spring is fixedly installed on one side of the inner wall of the rectangular groove, and the other end of the reset spring is fixedly installed on one side of the connecting plate.

[0007] In a preferred embodiment, the rectangular groove is adapted to the connecting plate, and the diameter of the plug is larger than the inner wall diameter of the plug ring.

[0008] In a preferred embodiment, one end of the clamping spring is fixedly installed on one side of the block, and the other end of the clamping spring is fixedly installed on one end of the fixed cylinder.

[0009] In a preferred embodiment, a suction shell is fixedly installed at the input end of the outer shell, and a buffer device is rotatably connected inside the suction shell via a rotating rod. A protective net is fixedly installed on one side of the suction shell, and there are multiple buffer devices arranged in a circular array with the rotating rod as the center.

[0010] In a preferred embodiment, the buffer device includes a buffer shell installed outside the rotating rod, a limiting frame fixedly installed inside the buffer shell, a spring piece slidably connected inside the limiting frame, a limiting block fixedly installed on the top of the spring piece, a force-bearing plate slidably connected to the top of the force-bearing plate, and a drive plate installed on the top of the force-bearing plate.

[0011] In a preferred embodiment, the force-bearing plate is adapted to the interior of the buffer shell.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This utility model

[0014] When not suctioning, the return spring moves the connecting plate, causing the fixed cylinder to move the sliding rod. Simultaneously, the tightening spring moves the plug block, sealing the inner wall of the plug ring to prevent sludge from flowing back and getting stuck in the suction pipe. This solves the problem in existing technologies where, when the sludge removal equipment stops, the sludge in the suction pipe easily flows back, accumulating in the pipe when it is pulled back, and flowing out when it is pulled upwards. This sludge can easily enter other water layers, causing pollution and affecting water quality.

[0015] When the sludge enters the suction shell, the sludge causes the buffer device to rotate via the rotating rod. The sludge then moves the drive plate, which in turn causes the spring to deform via the force plate. The spring moves within the limit frame, buffering the pressure of the sludge suction and increasing the service life of the device. Attached Figure Description

[0016] Figure 1 A perspective view of a dredging device for water conservancy projects provided by this utility model.

[0017] Figure 2 This utility model provides a schematic diagram showing the connection between the suction shell and the buffer device of a dredging device for water conservancy projects.

[0018] Figure 3 A schematic diagram of the anti-backflow device structure of a dredging device for water conservancy projects provided by this utility model.

[0019] Figure 4 This utility model provides a schematic diagram of the buffer device structure of a dredging device for water conservancy projects.

[0020] Legend:

[0021] 1. Anti-backflow device; 2. Suction shell; 3. Buffer device; 4. Protective net;

[0022] 11. Outer shell; 12. Plug ring; 13. Rectangular groove; 14. Fixing rod; 15. Return spring; 16. Connecting plate; 17. Fixing cylinder; 18. Tightening spring; 19. Plug block; 110. Sliding rod;

[0023] 31. Buffer shell; 32. Limiting frame; 33. Spring; 34. Limiting block; 35. Force plate; 36. Drive plate. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution: a dredging device for water conservancy projects, comprising: an anti-backflow device 1, the anti-backflow device 1 including a shell 11, a plug ring 12 fixedly installed on the inner wall of the shell 11, rectangular grooves 13 on both sides of the shell 11, a fixing rod 14 fixedly installed inside the rectangular grooves 13, a connecting plate 16 slidably connected to the outside of the fixing rod 14, a return spring 15 provided outside the fixing rod 14, a fixing cylinder 17 fixedly installed at one end of the connecting plate 16, and a sliding rod 110 slidably connected inside the fixing cylinder 17. A clamping spring 18 is provided on the outside of the rod 110. A block 19 is fixedly installed at one end of the sliding rod 110. One end of the return spring 15 is fixedly installed on one side of the inner wall of the rectangular groove 13, and the other end of the return spring 15 is fixedly installed on one side of the connecting plate 16. The rectangular groove 13 is adapted to the connecting plate 16. The diameter of the block 19 is larger than the inner wall diameter of the plug ring 12. One end of the clamping spring 18 is fixedly installed on one side of the block 19, and the other end of the clamping spring 18 is fixedly installed at one end of the fixed cylinder 17. The other end of the outer shell 11 is connected to the input end of the straw.

[0027] In the above embodiments:

[0028] During use, when suctioning, the sludge passes through the protective net 4 and buffer device 3 into the anti-backflow device 1. The sludge moves the block 19, and through the gap between the blocking ring 12 and the block 19, it enters the outer shell 11. When the block 19 moves, it moves the sliding rod 110 in the fixed cylinder 17, compressing the top spring 18. At the same time, the fixed cylinder 17 moves the connecting plate 16 on the fixed rod 14, compressing the return spring 15. When suctioning stops, the return spring 15 moves the connecting plate 16, causing the fixed cylinder 17 to move the sliding rod 110. At the same time, the top spring 18 moves the block 19, blocking the inner wall of the blocking ring 12 to prevent sludge backflow. With the springs returning twice, the block 19 and the blocking ring 12 fit together better.

[0029] Example 2

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, a suction shell 2 is fixedly installed at the input end of the outer shell 11. A buffer device 3 is rotatably connected inside the suction shell 2 via a rotating rod. A protective net 4 is fixedly installed on one side of the suction shell 2. There are multiple buffer devices 3, which are arranged in a circular array with the rotating rod as the center. The buffer device 3 includes a buffer shell 31 installed outside the rotating rod. A limit frame 32 is fixedly installed inside the buffer shell 31. A spring piece 33 is slidably connected inside the limit frame 32. A limit block 34 is fixedly installed on the top of the spring piece 33. A force plate 35 is slidably connected to the top of the spring piece 33. A drive plate 36 is installed on the top of the force plate 35. The force plate 35 is adapted to the interior of the buffer shell 31.

[0031] In the above embodiments:

[0032] When the sludge enters the suction shell 2, the sludge causes the buffer device 3 to rotate via the rotating rod. The sludge then causes the drive plate 36 to move. The drive plate 36 causes the spring piece 33 to deform via the force plate 35. The spring piece 33 moves within the limit frame 32, buffering the pressure of the sludge suction and increasing the service life of the device.

[0033] Working principle:

[0034] like Figure 1-4 As shown, when the sludge enters the suction shell 2, the sludge causes the buffer device 3 to rotate through the rotating rod. The drive plate 36 causes the spring piece 33 to deform through the force plate 35. The spring piece 33 moves in the limit frame 32 to buffer the pressure of sludge suction and increase the service life of the device.

[0035] During suction, the sludge passes through the protective net 4 and the buffer device 3 into the anti-backflow device 1. The sludge causes the block 19 to move, which in turn causes the sliding rod 110 to move within the fixed cylinder 17, compressing the top spring 18 and the return spring 15. When suction is not in progress, the return spring 15 causes the connecting plate 16 to move, which in turn causes the fixed cylinder 17 to move the sliding rod 110. At the same time, the top spring 18 causes the block 19 to move, blocking the inner wall of the plug ring 12 and preventing the sludge from flowing back.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A dredging device for water conservancy projects, characterized in that, include: An anti-backflow device (1) includes a housing (11), a plug ring (12) is fixedly installed on the inner wall of the housing (11), rectangular grooves (13) are provided on both sides of the housing (11), a fixing rod (14) is fixedly installed inside the rectangular groove (13), a connecting plate (16) is slidably connected to the outside of the fixing rod (14), a return spring (15) is provided outside the fixing rod (14), a fixing cylinder (17) is fixedly installed at one end of the connecting plate (16), a sliding rod (110) is slidably connected inside the fixing cylinder (17), a pressing spring (18) is provided outside the sliding rod (110), and a plug block (19) is fixedly installed at one end of the sliding rod (110).

2. The dredging device for water conservancy projects according to claim 1, characterized in that: One end of the reset spring (15) is fixedly installed on one side of the inner wall of the rectangular groove (13), and the other end of the reset spring (15) is fixedly installed on one side of the connecting plate (16).

3. The dredging device for water conservancy projects according to claim 1, characterized in that: The rectangular groove (13) is adapted to the connecting plate (16), and the diameter of the plug (19) is larger than the inner wall diameter of the plug ring (12).

4. A dredging device for water conservancy projects according to claim 1, characterized in that: One end of the clamping spring (18) is fixedly installed on one side of the block (19), and the other end of the clamping spring (18) is fixedly installed on one end of the fixed cylinder (17).

5. A dredging device for water conservancy projects according to claim 1, characterized in that: The input end of the outer shell (11) is fixedly installed with a suction shell (2). The inside of the suction shell (2) is rotatably connected to a buffer device (3) via a rotating rod. A protective net (4) is fixedly installed on one side of the suction shell (2). There are multiple buffer devices (3), and the multiple buffer devices (3) are arranged in a circular array with the rotating rod as the center.

6. A dredging device for water conservancy projects according to claim 5, characterized in that: The buffer device (3) includes a buffer shell (31) installed outside the rotating rod. A limiting frame (32) is fixedly installed inside the buffer shell (31). A spring piece (33) is slidably connected inside the limiting frame (32). A limiting block (34) is fixedly installed on the top of the spring piece (33). A force plate (35) is slidably connected to the top of the spring piece (33). A drive plate (36) is installed on the top of the force plate (35).

7. A dredging device for water conservancy projects according to claim 6, characterized in that: The load-bearing plate (35) is adapted to the interior of the buffer shell (31).

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