Port channel dredging device

Abstract

The invention discloses a port channel desilting device, relates to the field of water conservancy dredging equipment, and solves the problems that an existing port channel desilting device is difficult to move at the water bottom during use, sludge is difficult to fully discharge, and a large amount of water is synchronously discharged in the pumping process, the port channel desilting device comprises an arc-shaped cover, a desilting cylinder and a desilting mechanism, the desilting mechanism comprises a fixed barrel, a sliding barrel and a control piece, multiple sets of communicating holes are formed in the sliding barrel, the control piece on the desilting mechanism controls the position of the desilting barrel, the desilting barrel can roll in underwater silt, the lower sliding barrel is inserted into the silt, and the desilting barrel can roll in the silt; according to the dredging device, through the arrangement of the communicating holes, sludge enters the fixed cylinder and the dredging cylinder through the communicating holes and is discharged to the needed position to be collected and filtered, the communicating holes in the sliding cylinder at the upper side position are automatically closed, the conveying amount of water at the upper position in the pumping process is reduced, the conveying strength of sludge in the lower area is guaranteed, and the dredging efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water conservancy dredging equipment, in particular to a port channel dredging device. BACKGROUND

[0002] During long-time operation, the silt at the bottom of the channel will continuously accumulate, causing the depth of the port channel to gradually decrease, affecting the traffic capacity of the channel. Therefore, the port channel needs to be dredged regularly. Compared with other channel projects, channel dredging is flexible, fast-acting, and simple to construct, and does not require a large amount of engineering materials and manpower.

[0003] The existing port channel dredging device directly places the silt pumping equipment into the water bottom, and directly pumps the silt and water into the treatment mechanism for filtration and collection. If the bottom end of the pumping device is light in weight, it is difficult to ensure that the bottom end is always inside the silt at the water bottom. If the weight is too large, it is easy to sink into the silt and be difficult to move. In order to improve the moving efficiency of the equipment at the water bottom, improve the silt pumping efficiency, and reduce the pumping amount of water, the present application proposes a port channel dredging device. SUMMARY

[0004] The present application aims to provide a port channel dredging device that can improve the moving efficiency of the equipment at the water bottom, improve the silt pumping efficiency, and reduce the pumping amount of water, to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a port channel dredging device, comprising an arc-shaped cover and a dredging mechanism, a dredging cylinder is arranged below the arc-shaped cover, the dredging mechanism comprises a plurality of fixed cylinders fixedly installed on the outer wall of the dredging cylinder, a sliding cylinder is slidably connected in the fixed cylinder, a plurality of communication holes are formed in the sliding cylinder, a control member is arranged on the arc-shaped cover for controlling the position of the dredging cylinder and outputting the silt in the dredging cylinder, the position of the dredging cylinder can be controlled by the control member, so that the dredging cylinder can roll in the silt at the water bottom, the sliding cylinder below is inserted into the silt, the silt enters the fixed cylinder and the dredging cylinder through the communication holes and is discharged, and the communication holes on the sliding cylinder at the upper side are automatically closed, reducing the delivery amount of the water above during pumping, ensuring the delivery strength of the silt in the lower area, improving the moving efficiency of the equipment at the water bottom, improving the silt pumping efficiency, and reducing the pumping amount of water.

[0006] Preferably, the dredging mechanism further comprises a sleeve installed inside the dredging cylinder, a plurality of groups of rotating rods are uniformly connected to the sleeve, conveying screws are fixedly connected to the outer wall of the rotating rods, the conveying screws penetrate through the dredging cylinder and rotate with the inner wall of the dredging cylinder and the fixed cylinder, a sliding cavity is arranged in the fixed cylinder, the sliding cylinder is slidingly connected to the inner wall of the sliding cavity, a return spring is fixedly connected in the sliding cavity, one end of the return spring is fixedly connected to the sliding cylinder, thereby facilitating the conveying operation of the sludge.

[0007] Preferably, the dredging mechanism further comprises a fixed cover fixedly installed at both ends of the arc-shaped cover, a side plate is arranged in the fixed cover, the top end of the sliding cylinder can slide with the inner wall of the arc-shaped cover, slopes are arranged on both sides of the arc-shaped cover, the outer edge of the sliding cylinder can slide with the slope, thereby facilitating the guiding of the sliding cylinder when the sliding cylinder reaches the slope position, so that the sliding cylinder gradually slides into the sliding cavity, the sleeve is provided with a driving member for synchronously driving a plurality of groups of rotating rods to rotate, the arc-shaped cover is provided with a dismounting member for controlling the fixed state of the dredging cylinder, thereby facilitating the adjustment of the position of the side plate.

[0008] Preferably, the dismounting member comprises a sliding block fixedly installed on the side plate, a guide groove is arranged in the fixed cover, the sliding block is slidingly connected to the inner wall of the guide groove in the horizontal direction, a device box is fixedly connected to the arc-shaped cover, an electric telescopic rod is fixedly connected in the device box, the telescopic end of the electric telescopic rod is fixedly connected to the side surface of the sliding block, a sleeve ring that can movably sleeve the outer wall of both ends of the dredging cylinder is fixedly connected to the side plate, thereby facilitating the control of the fixed state of the dredging cylinder.

[0009] Preferably, the driving member comprises a mounting cylinder fixedly installed on one side of the side plate, a driving motor is fixedly connected in the mounting cylinder, the mounting cylinder movably sleeves the inner wall of the sleeve, an insertion slot is arranged in the output end of the driving motor, an insertion rod is inserted into the insertion slot, a driving shaft is coaxially fixedly connected to the insertion rod, a plurality of groups of first bevel gears are uniformly fixedly connected to the driving shaft in a coaxial manner, second bevel gears that mesh with the first bevel gears are fixedly connected to the rotating rods in a coaxial manner, the outer wall of the first bevel gears is rotatably connected to the inner wall of the sleeve, thereby facilitating the synchronous driving of a plurality of groups of rotating rods to rotate.

[0010] Preferably, the control piece comprises a conveying pipe fixedly installed in the side plate, a bottom end of the conveying pipe is capable of communicating with the dredging cylinder, a connecting pipe is fixedly connected on the device box, two groups of sleeve pipes are communicated and connected on the side surface of the connecting pipe, the conveying pipe is movably sleeved with the inner wall of the sleeve pipe, the conveying pipe communicates with the sleeve pipe, an output piece for outputting the sludge is arranged on the connecting pipe, and a moving piece for controlling the position of the arc-shaped cover is arranged on the device box, so that the position of the dredging cylinder can be controlled and the sludge in the dredging cylinder can be outputted.

[0011] Preferably, the output piece comprises an output pipe communicated and connected with the upper end of the connecting pipe, an upper end of the output pipe is provided with a pumping pump, an output end of the pumping pump is communicated and connected with a collecting box, and a drain pipe is arranged on the collecting box, so that the sludge can be outputted.

[0012] Preferably, the moving piece comprises a fixing frame fixedly installed on the device box, a rotating shaft is rotatably connected on the fixing frame, and a steel cable is fixedly connected on the rotating shaft, so that the position of the arc-shaped cover can be controlled.

[0013] Preferably, the steel cable is fixedly connected with a guide frame which is slidably sleeved with the outer wall of the output pipe, so that the output pipe can be guided and limited in position.

[0014] Preferably, the fixing frame is obliquely arranged above the device box, so that the dredging cylinder on the water bottom can be driven by the ship body on the water to roll and run in the sludge.

[0015] Compared with the prior art, the beneficial effects of the present application are: The port channel dredging device provided by the present application solves the problems that the prior art port channel dredging device is difficult to move on the water bottom and fully discharge the sludge, and a large amount of water is discharged synchronously during the pumping process. The position of the dredging cylinder is controlled by the control piece on the dredging mechanism, so that the dredging cylinder can roll in the sludge on the water bottom. The lower sliding cylinder is inserted into the sludge, so that the sludge enters the fixed cylinder and the dredging cylinder through the communication hole and is discharged to the required position for collection and filtration treatment. The communication hole on the sliding cylinder on the upper side is automatically closed, the conveying amount of water on the upper position during the pumping process is reduced, the conveying strength of the sludge in the lower area is ensured, and the dredging efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a partial structure diagram of the dredging mechanism of the present application. Figure 2 It is Figure 1 It is an enlarged view of area A. Figure 3 It is a schematic diagram of the overall structure of the present application. Figure 4 It is the bottom structure schematic view of the dredging mechanism of the application; Figure 5 It is the partial structure exploded view of the control member of the application; Figure 6 It is the partial structure exploded view of the dismounting member of the application; Figure 7 It is the partial structure front view of the dredging mechanism of the application; Figure 8 It is Figure 7 The enlarged view of area B; Figure 9 It is the partial structure sectional view of the dredging mechanism of the application; Figure 10 It is Figure 9 The enlarged view of area C; Figure 11 It is the partial structure schematic view of the driving member of the application; Figure 12 It is Figure 11 The enlarged view of area D.

[0017] In the figure: 1-arc cover; 2-dredging cylinder; 3-fixed cylinder; 4-sliding cylinder; 5-communication hole; 6-control member; 7-sleeved cylinder; 8-rotation rod; 9-conveying spiral; 10-sliding cavity; 11-reset spring; 12-fixed cover; 13-side plate; 14-slope surface; 15-driving member; 16-dismounting member; 17-sliding block; 18-guiding groove; 19-device box; 20-electric telescopic rod; 21-sleeved ring; 22-mounting cylinder; 23-driving motor; 24-insertion slot; 25-insertion rod; 26-driving shaft; 27-first bevel gear; 28-second bevel gear; 29-conveying pipe; 30-connecting pipe; 31-sleeved pipe; 32-output member; 33-moving member; 34-output pipe; 35-pumping pump; 36-collection box; 37-drain pipe; 38-fixing frame; 39-rotation shaft; 40-steel cable; 41-guiding frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be described clearly and completely below with the accompanying drawings of the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0019] Please refer to Figures 1-12The application provides a technical scheme: a port channel dredging device, which comprises an arc-shaped cover 1 and a dredging mechanism, a dredging cylinder 2 is arranged below the arc-shaped cover 1, the dredging mechanism comprises a plurality of fixed cylinders 3 which are fixedly installed on the outer wall of the dredging cylinder 2, a sliding cylinder 4 is slidably connected in the fixed cylinder 3, a plurality of communication holes 5 are formed in the sliding cylinder 4, a control piece 6 is arranged on the arc-shaped cover 1 and used for controlling the position of the dredging cylinder 2 and outputting the silt in the dredging cylinder 2, and the position of the dredging cylinder 2 can be controlled by the control piece 6, so that the dredging cylinder 2 can roll in the silt at the bottom of water, the sliding cylinder 4 at the lower side is inserted into the silt, the silt enters the fixed cylinder 3 and the dredging cylinder 2 through the communication holes 5 and is discharged, and the communication holes 5 on the sliding cylinder 4 at the upper side are automatically closed, so that the conveying amount of the upper water body in the pumping process is reduced, and the conveying strength of the silt in the lower area is ensured.

[0020] The dredging mechanism further comprises a sleeve cylinder 7 which is installed in the dredging cylinder 2, a plurality of rotating rods 8 are uniformly and rotatably connected to the sleeve cylinder 7, a conveying spiral 9 is fixedly connected to the outer wall of the rotating rod 8, the conveying spiral 9 penetrates through the dredging cylinder 2 and rotates in combination with the inner walls of the dredging cylinder 2 and the fixed cylinder 3, a sliding cavity 10 is formed in the fixed cylinder 3, the sliding cylinder 4 is slidably connected to the inner wall of the sliding cavity 10, a reset spring 11 is fixedly connected in the sliding cavity 10, and one end of the reset spring 11 is fixedly connected to the sliding cylinder 4.

[0021] The dredging mechanism further comprises a fixed cover 12 which is fixedly installed at two ends of the arc-shaped cover 1, a side plate 13 is arranged in the fixed cover 12, slope surfaces 14 are arranged at the two sides of the arc-shaped cover 1, the outer edge of the sliding cylinder 4 can slide in combination with the slope surfaces 14, the top end of the sliding cylinder 4 can slide in combination with the inner wall of the arc-shaped cover 1, the sleeve cylinder 7 is provided with a driving piece 15 which is used for synchronously driving a plurality of rotating rods 8 to rotate, and the arc-shaped cover 1 is provided with a dismounting piece 16 which is used for controlling the fixed state of the dredging cylinder 2.

[0022] The dismounting piece 16 comprises a sliding block 17 which is fixedly installed on the side plate 13, a guide groove 18 is formed in the fixed cover 12, the sliding block 17 is slidably connected to the inner wall of the guide groove 18 in the horizontal direction, a device box 19 is fixedly connected to the arc-shaped cover 1, an electric telescopic rod 20 is fixedly connected in the device box 19, the telescopic end of the electric telescopic rod 20 is fixedly connected to the side surface of the sliding block 17, and a sleeve ring 21 which can movably sleeve the outer walls of the two ends of the dredging cylinder 2 is fixedly connected to the side plate 13.

[0023] The driving member 15 comprises a mounting cylinder 22 fixedly mounted on one side plate 13, a driving motor 23 fixedly connected in the mounting cylinder 22, the model of the driving motor 23 is preferably YYHS-40, the mounting cylinder 22 is movably sleeved with the inner wall of the sleeving cylinder 7, the output end of the driving motor 23 is provided with a plug-in slot 24, a plug-in rod 25 is plugged in the plug-in slot 24, the plug-in rod 25 is coaxially fixedly connected with a driving shaft 26, a plurality of groups of first bevel gears 27 are uniformly fixedly connected on the driving shaft 26, a second bevel gear 28 engaged with the first bevel gears 27 is fixedly connected on the rotating rod 8, and the outer wall of the first bevel gears 27 is rotatably connected with the inner wall of the sleeving cylinder 7.

[0024] The control member 6 comprises a conveying pipe 29 fixedly mounted in the side plate 13, the bottom end of the conveying pipe 29 can be communicated with the dredging cylinder 2, a connecting pipe 30 is fixedly connected on the device box 19, two groups of sleeving pipes 31 are communicated and connected on the side surface of the connecting pipe 30, the conveying pipe 29 is movably sleeved with the inner wall of the sleeving pipe 31, the conveying pipe 29 is communicated with the sleeving pipe 31, the connecting pipe 30 is provided with an output member 32 for outputting the sludge, the device box 19 is provided with a moving member 33 for controlling the position of the arc-shaped cover 1, the moving member 33 comprises a fixed frame 38 fixedly mounted on the device box 19, a rotating shaft 39 rotatably connected on the fixed frame 38, a steel cable 40 fixedly connected on the rotating shaft 39, and the fixed frame 38 is obliquely arranged above the device box 19.

[0025] The output member 32 comprises an output pipe 34 communicated and connected with the upper end of the connecting pipe 30, the upper end of the output pipe 34 is provided with a suction pump 35, the output end of the suction pump 35 is communicated and connected with a collecting box 36, the collecting box 36 is provided with a drain pipe 37, and the steel cable 40 is fixedly connected with a guide frame 41 slidably sleeved with the outer wall of the output pipe 34.

[0026] Working principle: the collecting box 36 and the suction pump 35 can be installed on the deck at the tail of the ship body, one end of the steel cable 40 is fixed on the stern, the arc-shaped cover 1 and the dredging cylinder 2 are put into the water bottom as a whole, the device box 19 and the arc-shaped cover 1 drive the fixed covers 12 on both sides and the side plates 13 to move through the ship body pulling the steel cable 40, so that the dredging cylinder 2 rolls on the water bottom, in the rolling process of the dredging cylinder 2, the sliding cylinder 4 at the lower position is popped out of the sliding cavity 10 by the reset spring 11, and is inserted into the deep sludge, the large impurities in the sludge are filtered through the communication holes 5 on the end and the side surface, the suction pump 35 is started, the dredging cylinder 2 is sucked through the output pipe 34, the connecting pipe 30, the sleeving pipe 31 and the conveying pipe 29, and the driving motor 23 is started to drive the driving shaft 26 to rotate, so that the first bevel gears 27 drive the second bevel gears 28 to rotate, the second bevel gears 28 drive the rotating rod 8 to make the conveying screw 9 rotate, the sludge in the lower sliding cylinder 4 and the fixed cylinder 3 is pumped into the dredging cylinder 2, and then is discharged through the conveying pipes 29 on both sides.

[0027] When the sliding cylinder 4 rolls to the upper position, the end side of the sliding cylinder 4 will be in contact with the slope surface 14 and gradually push the sliding cylinder 4 to slide into the sliding cavity 10, compressing the reset spring 11. At this time, the communication hole 5 on the side of the sliding cylinder 4 will slide into the sliding cavity 10 and be blocked by the side wall of the fixed cylinder 3. The end surface position of the sliding cylinder 4 is in contact with the inner wall of the arc-shaped cover 1, which preliminarily blocks the communication hole 5 at this position. When the suction pump 35 is pumping, the sludge in the fixed cylinder 3 below the dredging cylinder 2 can be preferentially pumped into the dredging cylinder 2, and the upper position is mostly water. At this time, the preliminary blocking of the upper communication hole 5 greatly reduces the pumping amount of the upper water body, improving the conveying efficiency of the sludge during pumping.

[0028] It is worth noting that by pulling the arc-shaped cover 1 and making the dredging cylinder 2 roll on the water bottom, it is ensured that the arc-shaped cover 1 is always in the upper position of the dredging cylinder 2. The rolling state of the dredging cylinder 2 can move more stably on the water bottom. Through the multiple sets of fixed cylinders 3 and sliding cylinders 4 arranged on the surface, the grip of the dredging cylinder 2 is stronger, and the sliding cylinder 4 can be inserted more deeply into the sludge to improve the conveying efficiency. The sludge output through the output pipe 34 into the collection box 36 will be filtered and separated, and the water will be returned to the waterway through the drain pipe 37.

[0029] When the cleaning is completed, the steel cable 40 is wound by the winding equipment, and the device box 19 and the arc-shaped cover 1 are lifted by the crane to the ship body, and the recovery operation of the equipment is completed. When it is necessary to clean the inside of the dredging cylinder 2, the electric telescopic rods 20 on both sides are controlled to push the sliding blocks 17 to slide to both sides along the guide grooves 18, so that the side plates 13 and the sleeve rings 21 move to both sides together. The sleeve ring 21 releases the sleeving and limiting of the outer wall of the dredging cylinder 2, and the installation cylinder 22 is extracted from the sleeving cylinder 7 together with the driving motor 23, and the insertion rod 25 is disengaged from the insertion slot 24. Thereafter, the dredging cylinder 2 can be taken out from below the arc-shaped cover 1 as a whole, and the inside of the dredging cylinder 2 can be directly flushed and disinfected.

[0030] When it is necessary to install the dredging cylinder 2, the dredging cylinder 2 is placed between the two groups of side plates 13, the electric telescopic rods 20 are controlled to pull the sliding blocks 17, so that the side plates 13 on both sides slide to both ends of the dredging cylinder 2 synchronously, the installation cylinder 22 is inserted into the sleeving cylinder 7, and the insertion rod 25 is inserted into the insertion slot 24. After the sleeve rings 21 on both sides are sleeved with the outer wall of the dredging cylinder 2, the installation of the dredging cylinder 2 is completed.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A port channel dredging device, characterized in that: include: An arc-shaped cover (1), wherein a dredging cylinder (2) is provided below the arc-shaped cover (1); Also includes: The dredging mechanism comprises a plurality of fixed cylinders (3) fixedly mounted on the outer wall of the dredging cylinder (2), a sliding cylinder (4) being slidably connected in the fixed cylinder (3), a plurality of communicating holes (5) being provided on the sliding cylinder (4), and a control member (6) for controlling the position of the dredging cylinder (2) and capable of outputting the sludge in the dredging cylinder (2) being provided on the arc cover (1). The dredging mechanism can control the position of the dredging cylinder (2) through the control member (6), so that the dredging cylinder (2) can roll in the sludge at the bottom of the water, and by inserting the sliding cylinder (4) below into the sludge, the sludge enters the fixed cylinder (3) and the dredging cylinder (2) through the communicating holes (5) and is discharged, and the communicating holes (5) on the sliding cylinder (4) at the upper position are automatically closed, thereby reducing the amount of water transported to the upper body during the pumping process and ensuring the transport intensity of the sludge in the lower area.

2. A port channel desilting device according to claim 1, characterized in that: The dredging mechanism further comprises a sleeve tube (7) mounted inside the dredging tube (2), a plurality of rotating rods (8) being evenly connected to the sleeve tube (7), a conveying screw (9) being fixedly connected to the outer wall of the rotating rod (8), the conveying screw (9) passing through the dredging tube (2) and rotating in contact with the inner wall of the dredging tube (2) and the fixed tube (3), a sliding cavity (10) being provided in the fixed tube (3), the sliding tube (4) being slidably connected to the inner wall of the sliding cavity (10), a reset spring (11) being fixedly connected in the sliding cavity (10), one end of the reset spring (11) being fixedly connected to the sliding tube (4).

3. A port channel desilting device according to claim 2, characterized in that: The dredging mechanism further comprises a fixed cover (12) fixedly mounted on both ends of the arc cover (1), a side plate (13) is provided in the fixed cover (12), the top end of the sliding cylinder (4) can slide in contact with the inner wall of the arc cover (1), both sides of the arc cover (1) are provided with a slope (14), the outer edge of the sliding cylinder (4) can slide in contact with the slope (14), the sleeve cylinder (7) is provided with a driving member (15) for synchronously driving multiple groups of the rotating rods (8) to rotate, and the arc cover (1) is provided with a disassembly member (16) for controlling the fixed state of the dredging cylinder (2).

4. A port channel desilting device according to claim 3, characterized in that: The disassembly and assembly part (16) includes a sliding block (17) fixedly mounted on the side plate (13); a guide groove (18) is provided on the fixed cover (12); the sliding block (17) is slidably connected to the inner wall of the guide groove (18) in a horizontal direction; a device box (19) is fixedly connected to the arc cover (1); an electric telescopic rod (20) is fixedly connected inside the device box (19); the telescopic end of the electric telescopic rod (20) is fixedly connected to the side of the sliding block (17); and a sleeve ring (21) capable of movably sleeved with the outer walls of both ends of the dredging barrel (2) is fixedly connected to the side plate (13).

5. The port channel desilting device according to claim 3, characterized in that: The driving member (15) includes a mounting tube (22) fixedly mounted on one side of the side plate (13), a driving motor (23) fixedly connected to the mounting tube (22), the mounting tube (22) being movably sleeved with the inner wall of the sleeve tube (7), an output end of the driving motor (23) being provided with a plug-in slot (24), a plug-in rod (25) being inserted into the plug-in slot (24), the plug-in rod (25) being coaxially fixedly connected to a driving shaft (26), a plurality of groups of first bevel gears (27) being coaxially and uniformly fixedly connected to the driving shaft (26), a second bevel gear (28) meshing with the first bevel gear (27) being coaxially fixedly connected to the rotating rod (8), and an outer wall of the first bevel gear (27) being rotatably connected to the inner wall of the sleeve tube (7).

6. The port channel desilting device according to claim 4, characterized in that: The control member (6) includes a delivery pipe (29) fixedly installed in the side plate (13), the bottom end of the delivery pipe (29) can be connected to the dredging barrel (2), the device box (19) is fixedly connected to a connecting pipe (30), the side of the connecting pipe (30) is connected to two sets of sleeve pipes (31), the delivery pipe (29) is movably sleeved with the inner wall of the sleeve pipe (31), the delivery pipe (29) is connected to the sleeve pipe (31), the connecting pipe (30) is provided with an output member (32) for outputting silt, and the device box (19) is provided with a moving member (33) for controlling the position of the arc cover (1).

7. A port channel desilting device according to claim 6, characterized in that: The output member (32) includes an output pipe (34) connected to the upper end of the connecting pipe (30), a pumping pump (35) is provided at the upper end of the output pipe (34), and the output end of the pumping pump (35) is connected to a collection box (36), and a drain pipe (37) is provided on the collection box (36).

8. The port channel desilting device according to claim 7, characterized in that: The moving member (33) comprises a fixing frame (38) fixedly mounted on the device box (19), a rotating shaft (39) being rotatably connected to the fixing frame (38), and a steel cable (40) being fixedly connected to the rotating shaft (39).

9. The port channel desilting device according to claim 8, characterized in that: The steel cable (40) is fixedly connected to a guide frame (41) that is slidably sleeved with the outer wall of the output pipe (34).

10. The port channel desilting device according to claim 8, characterized in that: The fixing frame (38) is arranged obliquely above the device box (19).

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