Net bag type ship towing slicking device for removing float sludge layer

Abstract

The invention provides a net bag type ship towing slicking device for removing a float sludge layer, and relates to the technical field of dredging engineering equipment, and the net bag type ship towing slicking device comprises a fixing frame and canvas arranged on the inner wall of the fixing frame; the winding and unwinding mechanism comprises two storage frames, winding assemblies arranged in the storage frames and steel wire ropes arranged between the winding assemblies and the fixing frames, the connecting assemblies are arranged between the fixing frames and the steel wire ropes and used for quickly mounting and dismounting the steel wire ropes and the fixing frames, and box bodies are arranged on the side walls of the storage frames. And the extrusion mechanism is arranged in the box body. According to the scraping device, canvas and a steel wire rope in the scraping device can be rapidly mounted and dismounted, the canvas can be conveniently cleaned and replaced, the scraping device can be further mounted on a trailing suction ship to be used, the steel wire rope can be tightly and evenly wound when the steel wire rope is wound, and the phenomenon that the steel wire rope is loosened is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging engineering equipment, and in particular to a net bag type ship drag scraper for removing floating mud layers. Background Art

[0002] With the development of economy and social life, the demand for the exploration and utilization of oceans and marine resources is increasing. These demands have led to the rapid development of dredging and marine engineering in various fields. In dredging, the dragging suction hopper dredger is one of the typical methods for excavating seabed materials. The typical equipment is the dragging suction hopper dredger. The dragging head is the working component of the dragging suction hopper dredger for excavating soil layers. It is connected to the dragging suction pipe through a flange installed at the end. The function of the dragging head can be summarized as using rake teeth to destroy the soil structure to achieve the excavation of underwater sediment and other materials. The excavated sediment is mixed with the water entering the dragging head to form mud, which is then transported to the predetermined location by fluid transport. During the dredging process of the dragging suction hopper dredger, some sediment is stirred by the excavation and suspended on the water surface to form a floating mud layer. Therefore, to prevent the large amount of floating mud from affecting the operation of the dragging suction hopper dredger and the dredging work, it is generally necessary to use a net bag ship towed scraper in conjunction with the dragging suction hopper dredger to remove the floating mud layer on the water surface.

[0003] The current net bag type boat drag scraper still has the following defects during use: 1. The canvas in the net bag type boat drag scraper is fixedly connected to the wire rope. When the canvas is damaged or needs to be replaced, it cannot be quickly installed or removed, which is very inconvenient; 2. The canvas generally needs to be tied between two trailing suction hopper vessels by wire rope for towing work. When only one trailing suction hopper vessel is working, it is inconvenient to install the scraper for mud removal operation; 3. When the mud removal is completed, the wire rope needs to be manually reeled in to collect the canvas, which is not only time-consuming and labor-intensive, but also the wire rope is easily entangled and knotted when it is reeled in arbitrarily, affecting subsequent use. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems that the existing net bag type boat drag scraper cannot quickly install and disassemble the canvas and wire rope, cannot be used with a trailing suction hopper, and easily causes the wire rope to be entangled and knotted when winding the wire rope.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] A net bag type boat drag scraper for removing a floating mud layer comprises a fixed frame and a canvas arranged on the inner wall of the fixed frame, and further comprises:

[0007] The retracting and unretracting mechanism includes two receiving frames, a reeling assembly disposed inside the receiving frames, and a steel wire rope disposed between the reeling assembly and the fixed frame;

[0008] A connecting assembly is provided between the fixing frame and the steel wire rope, and is used for quickly installing and disassembling the steel wire rope and the fixing frame;

[0009] A squeezing mechanism, wherein a box body is provided on the side wall of the storage frame, and the squeezing mechanism is arranged inside the box body. The squeezing mechanism can squeeze the steel wire rope when the retracting mechanism reels the steel wire rope to put the steel wire rope in a taut state.

[0010] As a preferred technical solution of the present application, the connecting assembly includes a fixed cylinder symmetrically arranged at the edges of both sides of the fixed frame, an insertion column arranged at the end of the wire rope away from the winding assembly, a limiting column arranged on the side wall of the insertion column, a slot opened on the side wall of the fixed cylinder, a sliding groove arranged on the side wall of the fixed cylinder and connected to the slot, and a card slot arranged on the side wall of the fixed cylinder and connected to the sliding groove.

[0011] As a preferred technical solution of the present application, the slot, sliding slot and card slot cooperate with the limiting column, and the inner walls of the slot, sliding slot and card slot are all provided with rubber pads.

[0012] As a preferred technical solution of the present application, an elastic block is slidably connected to the inner wall of the fixed cylinder, and a first spring is provided between the elastic block and the inner bottom wall of the fixed cylinder.

[0013] As the preferred technical solution of this application, the winding assembly includes a motor arranged on the top of the storage frame, a rotating shaft arranged on the output shaft of the motor, and a reel symmetrically arranged on both sides of the rotating shaft rod wall. The side wall of the storage frame is provided with a slide groove, and the end of the wire rope away from the plug column passes through the slide groove and is connected to the reel.

[0014] As a preferred technical solution of the present application, the extrusion mechanism includes a screw rotatably arranged at the top and bottom of the box, a screw barrel with threads arranged on the wall of the screw and slidingly connected to the box, a pressure block arranged at the bottom of the screw barrel, support plates arranged at the edges of both sides of the storage frame, stops arranged on the support plates and cooperating with the pressure blocks, rubber blocks arranged on the opposite sides of the pressure blocks and the stops, a first rotating rod rotatably arranged on the side wall of the box, a first driving bevel gear arranged at one end of the first rotating rod located inside the box, and a first driven bevel gear arranged at one end of the screw located inside the box and meshing with the first driving bevel gear. The storage frame is also provided with a transmission assembly for driving the first rotating rod to rotate.

[0015] As a preferred technical solution of the present application, the transmission assembly includes a second rotating rod and a third rotating rod rotatably arranged on the side wall of the storage frame, a second active bevel gear arranged on the rod wall of the rotating shaft, a second driven bevel gear arranged on the rod wall of the second rotating rod located on the inner side of the storage frame and meshing with the second active bevel gear, a complete gear arranged on the rod wall of the second rotating rod located on the outer side of the storage frame, an incomplete gear arranged on the rod wall of the third rotating rod, and a belt arranged between the third rotating rod and the first rotating rod.

[0016] As a preferred technical solution of the present application, a protective shell is provided at the bottom of the storage frame, and a pulling mechanism is provided inside the protective shell. The pulling mechanism includes a curved rod slidably arranged between the protective shell and the storage frame, a limiting sleeve arranged on the outside of the wire rope, and a reciprocating assembly arranged inside the protective shell for pushing the curved rod back and forth. One end of the curved rod located inside the storage frame is connected to the limiting sleeve.

[0017] As a preferred technical solution of the present application, the reciprocating assembly includes a third active bevel gear arranged at one end of the rotating shaft extending to the inside of the protective shell, a fourth rotating rod rotatably arranged on the inner wall of the protective shell, a third driven bevel gear and a cam arranged on the rod wall of the fourth rotating rod, a pulley arranged at one end of the curved rod located inside the protective shell, and a second spring arranged on the rod wall of the curved rod.

[0018] As a preferred technical solution of the present application, the side wall of the storage frame is provided with a rib plate, the side wall of the rib plate is provided with a positioning plate, the top of the fixed frame is provided with a plurality of floats, and the bottom of the fixed frame is provided with a plurality of anchor ball markers.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When a scraper is needed to process the floating mud layer on the water surface, the plug post on the wire rope is first inserted into the fixed cylinder through the provided connection component, and then the plug post is rotated so that the limit post on the side wall of the plug post slides into the sliding groove through the slot. At this time, the provided spring block and the first spring can push the plug post so that the limit post on the plug post bounces into the slot, and the plug post and the fixed cylinder are quickly fixed, so that the wire rope and the fixed frame can be quickly installed. By squeezing the plug post and then reversing the plug post so that the limit post slides into the slot again, the plug post and the fixed cylinder can be disassembled and separated, which solves the problem in the prior art that the wire rope and the fixed frame cannot be installed and disassembled, making it inconvenient to maintain and replace the canvas inside the fixed frame.

[0021] 2. By fixing two storage frames on both sides of the trailing suction hopper, the canvas can be installed on one trailing suction hopper for work. Through the provided retracting and extending mechanism, the motor can be started to work, and the reel can be driven by the rotating shaft to rotate forward and reverse, so that the wire rope can be retracted and extended, and then the fixed frame and the canvas can be automatically collected, which solves the problem in the prior art that the canvas needs to be installed on two trailing suction hoppers for use and the canvas needs to be collected by manually pulling the wire rope, which is time-consuming and labor-intensive.

[0022] 3. When the wire rope is automatically wound by the retracting and unreeling mechanism, the transmission assembly can drive the first rotating rod to rotate. At this time, the first active bevel gear, the second driven bevel gear, the screw and the screw barrel can drive the pressure block to move close to the block, thereby squeezing the wire rope so that the wire rope is in a taut state when it is wound, so that the wire rope can be tightly wound on the drum to prevent the wire rope from loosening. In addition, the reciprocating assembly and the pulling mechanism can pull the wound wire rope up and down, so that the wire rope can be evenly wound on the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structural diagram of the present invention;

[0024] Figure 2 This is another structural diagram of the present invention;

[0025] Figure 3 It is a bottom view structural diagram of the present invention;

[0026] Figure 4 This is a partial exploded structural diagram of the storage frame of the present invention;

[0027] Figure 5 This is a diagram showing the internal structure of the storage frame of the present invention;

[0028] Figure 6 It is a structural diagram of the extrusion mechanism of the present invention;

[0029] Figure 7 is a cross-sectional structural diagram of a connection assembly of the present invention;

[0030] Figure 8 It is a connection structure diagram of the present invention;

[0031] Figure 9 For the present invention Figure 1 A in the middle shows the enlarged structure diagram;

[0032] Figure 10 For the present invention Figure 2 The structure diagram at B is enlarged;

[0033] Figure 11 For the present invention Figure 3 The structure diagram at C in the middle is enlarged;

[0034] Figure 12 For the present invention Figure 4 Enlarged structural diagram at point D in the middle.

[0035] Indicated in the figure:

[0036] 1. Fixed frame; 2. Canvas; 3. Storage frame; 301. Slide; 4. Motor; 401. Rotating shaft; 402. Second driving bevel gear; 403. Third driving bevel gear; 5. Reel; 6. Wire rope; 7. Fixed cylinder; 701. Slot; 702. Sliding groove; 703. Slot; 8. Insert column; 801. Limit column; 9. Spring block; 901. First spring; 10. Box; 11. First rotating rod; 1101. First driving bevel gear; 12. Screw; 1201. Screw cylinder; 1202. First driven bevel gear; 1203. Slide; 1204. Slider; 13. Pressure block; 1301. Rubber block; 14. Second rotating rod; 1401. Second driven bevel gear; 1402. Complete gear; 15. Third rotating rod; 1501. Incomplete gear; 1502. Belt; 16. Support plate; 1601. Stop block; 17. Curved rod; 1701. Limit sleeve; 1702. Second spring; 18. Cam; 1801. Pulley; 19. Fourth rotating rod; 1901. Third driven bevel gear; 20. Protective shell; 21. Protective cover; 22. Rib plate; 2201. Positioning plate; 23. Float; 24. Anchor ball marker. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0038] like Figures 1 to 4 As shown, this embodiment proposes a net bag type boat drag scraper for removing floating mud layers, comprising a fixed frame 1 and a canvas 2 arranged on the inner wall of the fixed frame 1, a retractable mechanism, a connecting assembly and a squeezing mechanism. The retractable mechanism comprises two storage frames 3, a winding assembly arranged inside the storage frames 3, and a steel wire rope 6 arranged between the winding assembly and the fixed frame 1. The connecting assembly is arranged between the fixed frame 1 and the steel wire rope 6 and is used for quickly installing and removing the steel wire rope 6 from the fixed frame 1. A box body 10 is provided on the side wall of the storage frame 3, and a squeezing mechanism is arranged inside the box body 10. The squeezing mechanism can squeeze the steel wire rope 6 when the retractable mechanism reels the steel wire rope 6 to keep the steel wire rope 6 in a taut state.

[0039] When it is necessary to remove the floating mud layer produced by the dredging sand excavation by the dragging suction boat, the wire rope 6 and the fixed frame 1 are quickly installed through the provided connecting mechanism, which saves time and is convenient for the subsequent disassembly of the fixed frame 1 to clean and replace the canvas 2 inside it. Then, the two storage frames 3 are installed on a dragging suction boat, and the fixed frame 1 and the canvas 2 can be driven by the dragging suction boat to move in the water to adsorb and remove the floating mud layer, thereby improving the adaptability of the equipment. In addition, the wire rope 6 can be automatically retracted and extended through the provided retraction and extension mechanism, and there is no need to manually pull the wire rope 6 to retract and extend the canvas 2, which saves time and manpower. When the wire rope 6 is wound up, the wire rope 6 can also be squeezed by the provided squeezing mechanism, so that the wire rope 6 is in a taut state when it is wound up, and then the wire rope 6 can be tightly wound around the reel 5, thereby avoiding the problem of loosening of the wire rope 6 after winding up.

[0040] Among them, the side wall of the storage frame 3 is provided with a rib plate 22, the side wall of the rib plate 22 is provided with a positioning plate 2201, the top of the fixed frame 1 is provided with a number of floats 23, and the bottom of the fixed frame 1 is provided with a number of anchor ball markers 24; the storage frame 3 can be installed on the drag suction boat through the provided positioning plate 2201 and the bolts, and the provided anchor ball markers 24 can make the fixed frame 1 and the canvas 2 sink into the water, and the provided floats 23 can prevent the fixed frame 1 from completely sinking into the water, so that the top of the fixed frame 1 is flush with the water surface, and the floating mud layer is adsorbed and collected by the canvas 2 sunk into the water.

[0041] like Figure 1 、 Figure 7 、 Figure 8 and Figure 9 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, the connection assembly further includes a fixed cylinder 7 symmetrically arranged at the edges of both sides of the fixed frame 1, a plug post 8 arranged at the end of the wire rope 6 away from the winding assembly, a limiting post 801 arranged on the side wall of the plug post 8, a slot 701 opened on the side wall of the fixed cylinder 7, a sliding groove 702 arranged on the side wall of the fixed cylinder 7 and connected to the slot 701, and a clamping groove 703 arranged on the side wall of the fixed cylinder 7 and connected to the sliding groove 702;

[0042] The slot 701, the sliding slot 702 and the clamping slot 703 cooperate with the limiting column 801, and the inner walls of the slot 701, the sliding slot 702 and the clamping slot 703 are all provided with rubber pads;

[0043] The inner wall of the fixed cylinder 7 is slidably connected to a spring block 9, and a first spring 901 is provided between the spring block 9 and the inner bottom wall of the fixed cylinder 7;

[0044] When the wire rope 6 and the fixed frame 1 need to be installed together, first insert the plug post 8 on the wire rope 6 into the fixed tube 7, and make the limiting post 801 on the side wall of the plug post 8 slide into the sliding groove 702 along the slot 701, and the plug post 8 will also squeeze the elastic block 9 to compress the first spring 901, and then rotate the plug post 8 to drive the limiting post 801 to rotate into the sliding groove 702 and flush with the card slot 703, at this time release the plug post 8, the first spring 901 will be released to drive the elastic block 9 and the plug post 8 to rebound and reset, so that the limiting post 801 slides into the card slot 703, which is convenient for the plug post 8 and the fixed tube 7. It can be quickly locked, so that the wire rope 6 and the fixed frame 1 can be quickly installed. When the fixed frame 1 and the wire rope 6 need to be disassembled, the column 8 can be pressed toward the inside of the fixed tube 7 again to make the limit column 801 slide into the sliding groove 702, and then the column 8 is rotated to make the limit column 801 slide to a position flush with the slot 701 and release the column 8. At this time, the first spring 901 will be released again to drive the spring block 9 to rebound, and the column 8 will be ejected from the fixed tube 7, so that the fixed frame 1 can be quickly disassembled, which is convenient for cleaning or replacing the canvas 2 inside the fixed frame 1.

[0045] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, the winding assembly further includes a motor 4 arranged on the top of the storage frame 3, a rotating shaft 401 arranged on the output shaft of the motor 4, and a reel 5 symmetrically sleeved on both sides of the rod wall of the rotating shaft 401, and a sliding groove 301 is provided on the side wall of the storage frame 3. The end of the wire rope 6 away from the plug column 8 passes through the sliding groove 301 and is connected to the reel 5;

[0046] The starting motor 4 drives the reel 5 on the rotating shaft 401 to rotate forward and reverse, so that the wire rope 6 can be retracted and extended, thereby automatically retracting and extending the fixed frame 1 and the canvas 2. There is no need to manually pull the wire rope 6 to retract and extend the canvas 2, which can save time and effort.

[0047] like Figure 4 、 Figure 5 、 Figure 6 、 Figure 10 and Figure 12As shown, as a preferred embodiment, on the basis of the above-mentioned method, the extrusion mechanism further includes a screw 12 rotatably arranged at the top and bottom of the box body 10, a screw barrel 1201 with a thread arranged on the rod wall of the screw 12 and slidingly connected to the box body 10, a pressure block 13 arranged at the bottom of the screw barrel 1201, support plates 16 arranged at the edges of both sides of the storage frame 3, a stopper 1601 arranged on the support plate 16 and cooperating with the pressure block 13, a rubber block 1301 arranged on the opposite side of the pressure block 13 and the stopper 1601, a first rotating rod 11 rotatably arranged on the side wall of the box body 10, a first driving bevel gear 1101 arranged at one end of the first rotating rod 11 located inside the box body 10, and a first driven bevel gear 1202 arranged at one end of the screw 12 located inside the box body 10 and meshing with the first driving bevel gear 1101. The storage frame 3 is also provided with a transmission assembly for driving the first rotating rod 11 to rotate;

[0048] The transmission assembly includes a second rotating rod 14 and a third rotating rod 15 that are rotatably arranged on the side wall of the storage frame 3, a second driving bevel gear 402 arranged on the rod wall of the rotating shaft 401, a second driven bevel gear 1401 arranged on the rod wall of the second rotating rod 14 located on the inner side of the storage frame 3 and meshing with the second driving bevel gear 402, a complete gear 1402 arranged on the rod wall of the second rotating rod 14 located on the outer side of the storage frame 3, an incomplete gear 1501 arranged on the rod wall of the third rotating rod 15, and a belt 1502 arranged between the third rotating rod 15 and the first rotating rod 11;

[0049] When the motor 4 drives the rotating shaft 401 to rotate and reel in the wire rope 6, the rotating shaft 401 will drive the second rotating rod 14 provided with the second driven bevel gear 1401 to rotate through the second active bevel gear 402, and the second rotating rod 14 will drive the complete gear 1402 on its rod wall to rotate, and the complete gear 1402 will first contact the toothed side of the incomplete gear 1501 and drive the incomplete gear 1501 to rotate a distance. When the complete gear 1402 contacts the toothless side of the incomplete gear 1501, the complete gear 1402 will no longer continue to drive the incomplete gear 1501 to rotate, so the incomplete gear 1501 will drive the first rotating rod 11 to rotate a distance through the third rotating rod 15 and the belt 1502, so the first rotating rod 11 then drives the screw 12 to rotate a distance through the first active bevel gear 1101 and the first driven bevel gear 1202. When the screw 12 is rotated for a certain distance, it can drive the screw barrel 1201 to move downward for a certain distance and stop, and then the downward pressure block 13 is close to the stop block 1601 to squeeze the wire rope 6, and the rubber block 1301 will undergo buffering deformation to prevent the wire rope 6 from being completely clamped. Therefore, the clamped wire rope 6 can be in a taut state when it is pulled and wound, so that the wire rope 6 can be tightly wound and wound on the drum 5 to prevent the wire rope 6 from loosening. It should be noted that the screw barrel 1201 is slidably connected to the slide groove 301 on the side wall of the storage frame 3 through the slide rod 1203 and the slider 1204. Therefore, when the screw 12 rotates a certain distance, it can drive the screw barrel 1201 to move downward for a certain distance, and a protective cover 21 can be set on the side wall of the storage frame 3 to shield and protect the components of the transmission assembly to prevent foreign objects from touching the transmission assembly and affecting the operation of the extrusion mechanism.

[0050] like Figure 5 and Figure 11 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, a protective shell 20 is provided at the bottom of the storage frame 3, and a pulling mechanism is provided inside the protective shell 20. The pulling mechanism includes a curved rod 17 slidably arranged between the protective shell 20 and the storage frame 3, a limiting sleeve 1701 sleeved on the outside of the wire rope 6, and a reciprocating assembly provided inside the protective shell 20 for pushing the curved rod 17 back and forth. One end of the curved rod 17 located inside the storage frame 3 is connected to the limiting sleeve 1701;

[0051] The reciprocating assembly includes a third driving bevel gear 403 provided on an end of the rotating shaft 401 extending to the interior of the protective housing 20, a fourth rotating rod 19 rotatably provided on the inner wall of the protective housing 20, a third driven bevel gear 1901 and a cam 18 provided on the wall of the fourth rotating rod 19, a pulley 1801 provided on the end of the curved rod 17 located inside the protective housing 20, and a second spring 1702 provided on the wall of the curved rod 17;

[0052] When the motor 4 drives the rotating shaft 401 to rotate and reel in the wire rope 6, the rotating shaft 401 will also drive the fourth rotating rod 19 provided with the third driven bevel gear 1901 to rotate through the third active bevel gear 403 at its bottom, and the fourth rotating rod 19 will drive the cam 18 to rotate. When the cam 18 rotates to the point where the small end contacts the pulley 1801, it will squeeze the pulley 1801 and the bent rod 17 to slide downward and compress the second spring 1702. When the cam 18 rotates to the point where the large end contacts the pulley 1801, the second spring 1702 will be released by the force and drive the bent rod 17 to move upward and reset, thereby driving the bent rod 17 to move back and forth up and down, and when the wire rope 6 is reeled in, the wire rope 6 can be pulled back and forth, so that the wire rope 6 can be evenly wound on the drum 5, which can not only prevent the wire rope 6 from being wound on the drum 5 and causing collapse, but also increase the winding amount of the drum 5.

[0053] The working principle of the present invention is as follows: when it is necessary to remove the floating mud layer generated by the dredging sand by the trailing suction hopper ship, the plug post 8 on the wire rope 6 is first inserted into the fixed cylinder 7, and the limiting column 801 on the side wall of the plug post 8 slides into the sliding groove 702 along the slot 701, and the plug post 8 also squeezes the elastic block 9 to compress the first spring 901, and then the plug post 8 is rotated to drive the limiting column 801 to rotate into the sliding groove 702 and flush with the card slot 703, at this time, the plug post 8 is released, and the force on the first spring 901 is released, which will drive the elastic block 9 and the plug post 8 to rebound and reset, so that the limiting column 801 slides into the card slot 703, which is convenient for the plug post 8 The fixing tube 7 is quickly locked, so that the wire rope 6 and the fixing frame 1 can be quickly installed. When the fixing frame 1 and the wire rope 6 need to be disassembled, the plug post 8 can be pressed into the fixing tube 7 again to make the limit post 801 slide into the sliding groove 702, and then the plug post 8 is rotated to make the limit post 801 slide to a position flush with the slot 701 and the plug post 8 is released. At this time, the first spring 901 will be released again to drive the elastic block 9 to rebound and eject the plug post 8 out of the fixing tube 7, so that the fixing frame 1 can be quickly disassembled, which is convenient for cleaning or replacing the canvas 2 inside the fixing frame 1. Then, the storage frame 3 can be installed on the dredge suction vessel by using the positioning plate 2201 and the bolts. The anchor ball marker 24 can make the fixing frame 1 and the canvas 2 sink into the water. The buoy 23 can prevent the fixing frame 1 from completely sinking into the water, so that the top of the fixing frame 1 is flush with the water surface, and the floating mud layer is adsorbed and collected by the submerged canvas 2. And the starting motor 4 drives the reel 5 on the rotating shaft 401 to rotate forward and reverse, so that the wire rope 6 can be retracted and extended, thereby automatically retracting and extending the fixed frame 1 and the canvas 2. There is no need to manually pull the wire rope 6 to retract and extend the canvas 2, which can save time and effort.When the motor 4 drives the rotating shaft 401 to rotate and the wire rope 6 is wound, the rotating shaft 401 will drive the second rotating rod 14 provided with the second driven bevel gear 1401 to rotate through the second active bevel gear 402, and the second rotating rod 14 will drive the complete gear 1402 on its rod wall to rotate, and the complete gear 1402 will first contact the toothed side of the incomplete gear 1501 and drive the incomplete gear 1501 to rotate a distance, and when the complete gear 1402 contacts the toothless side of the incomplete gear 1501, the complete gear 1402 will no longer continue to drive the incomplete gear 1501 to rotate, so the incomplete gear 1501 will drive the first rotating rod 11 to rotate a distance through the third rotating rod 15 and the belt 1502, so the first rotating rod 11 will then drive the first rotating rod 11 to rotate a distance through the first active bevel gear 402. The bevel gear 1101 and the first driven bevel gear 1202 drive the screw 12 to rotate a certain distance and then stop, thereby driving the barrel 1201 to move downward for a certain distance and stop, and then the downward pressure block 13 approaches the stop block 1601 to squeeze the wire rope 6, and the rubber block 1301 will undergo buffering deformation to prevent the wire rope 6 from being completely clamped. Therefore, the clamped wire rope 6 can be in a taut state when it is pulled and wound, so that the wire rope 6 can be tightly wound and wound on the drum 5 to prevent the wire rope 6 from loosening. It should be noted that the barrel 1201 is slidably connected to the slide groove 301 on the side wall of the storage frame 3 through the slide rod 1203 and the slider 1204. Therefore, when the screw 12 rotates a certain distance, it can drive the barrel 1201 to move downward for a certain distance. Moreover, the rotating shaft 401 will drive the fourth rotating rod 19 provided with the third driven bevel gear 1901 to rotate through the third active bevel gear 403 at its bottom, and the fourth rotating rod 19 will drive the cam 18 to rotate. When the cam 18 rotates to the point where the small end contacts the pulley 1801, it will squeeze the pulley 1801 and the curved rod 17 to slide downward and compress the second spring 1702. When the cam 18 rotates to the point where the large end contacts the pulley 1801, the second spring 1702 will be released from the force and drive the curved rod 17 to move upward and reset. Therefore, it can drive the curved rod 17 to move back and forth up and down, and can pull the wire rope 6 back and forth when the wire rope 6 is wound, so that the wire rope 6 can be evenly wound on the drum 5, which can not only prevent the wire rope 6 from being wound on the drum 5 and causing collapse in one position, but also increase the winding amount of the drum 5.

[0054] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; all technical solutions and improvements that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A net bag type boat drag scraper for removing floating mud layers, comprising a fixed frame (1) and a canvas (2) arranged on the inner wall of the fixed frame (1), characterized in that: Also includes: A retractable mechanism, comprising two receiving frames (3), a retractable assembly arranged inside the receiving frames (3), and a steel wire rope (6) arranged between the retractable assembly and the fixed frame (1); A connecting assembly, the connecting assembly being arranged between the fixing frame (1) and the steel wire rope (6) and being used for quickly installing and disassembling the steel wire rope (6) and the fixing frame (1); A squeezing mechanism, wherein a box body (10) is provided on a side wall of the storage frame (3), and the squeezing mechanism is arranged inside the box body (10). The squeezing mechanism can squeeze the steel wire rope (6) when the retracting mechanism reels the steel wire rope (6) to achieve a taut state of the steel wire rope (6).

2. A net bag type boat drag scraper for removing floating mud layer according to claim 1, characterized in that: The connecting assembly comprises a fixing cylinder (7) symmetrically arranged at the edges of both sides of the fixing frame (1), an insertion column (8) arranged at one end of the wire rope (6) away from the winding assembly, a limiting column (801) arranged on the side wall of the insertion column (8), a slot (701) opened on the side wall of the fixing cylinder (7), a sliding groove (702) arranged on the side wall of the fixing cylinder (7) and connected to the slot (701), and a clamping groove (703) arranged on the side wall of the fixing cylinder (7) and connected to the sliding groove (702).

3. The net bag type boat drag scraper for removing floating mud layer according to claim 2, characterized in that: The slot (701), the sliding slot (702) and the clamping slot (703) cooperate with the limiting column (801), and the inner walls of the slot (701), the sliding slot (702) and the clamping slot (703) are all provided with rubber pads.

4. The net bag type boat drag scraper for removing floating mud layer according to claim 2, characterized in that: The inner wall of the fixed cylinder (7) is slidably connected to a spring block (9), and a first spring (901) is provided between the spring block (9) and the inner bottom wall of the fixed cylinder (7).

5. The net bag type boat drag scraper for removing floating mud layer according to claim 2, characterized in that: The winding assembly comprises a motor (4) arranged on the top of the storage frame (3), a rotating shaft (401) arranged on the output shaft of the motor (4), and a reel (5) symmetrically sleeved on both sides of the rod wall of the rotating shaft (401); a sliding groove (301) is provided on the side wall of the storage frame (3), and the end of the steel wire rope (6) away from the plug column (8) passes through the sliding groove (301) and is connected to the reel (5).

6. The net bag type boat drag scraper for removing floating mud layer according to claim 5, characterized in that: The extrusion mechanism comprises a screw (12) rotatably arranged at the top and bottom of the box (10), a screw barrel (1201) with threads arranged on the wall of the screw (12) and slidably connected to the box (10), a pressing block (13) arranged at the bottom of the screw barrel (1201), a support plate (16) arranged at the edges of both sides of the storage frame (3), a stopper (1601) arranged on the support plate (16) and matched with the pressing block (13), and a screw barrel (1201) provided between the pressing block (13) and the stopper (1601). ), a rubber block (1301) on the opposite side of the housing (10), a first rotating rod (11) rotatably arranged on the side wall of the housing (10), a first driving bevel gear (1101) arranged at one end of the first rotating rod (11) located inside the housing (10), and a first driven bevel gear (1202) arranged at one end of the screw rod (12) located inside the housing (10) and meshing with the first driving bevel gear (1101), and a transmission assembly for driving the first rotating rod (11) to rotate is also provided on the storage frame (3).

7. The net bag type boat drag scraper for removing floating mud layer according to claim 6, characterized in that: The transmission assembly comprises a second rotating rod (14) and a third rotating rod (15) rotatably arranged on the side wall of the storage frame (3), a second active bevel gear (402) arranged on the rod wall of the rotating shaft (401), a second driven bevel gear (1401) arranged on the rod wall of the second rotating rod (14) located on the inner side of the storage frame (3) and meshing with the second active bevel gear (402), a complete gear (1402) arranged on the rod wall of the second rotating rod (14) located on the outer side of the storage frame (3), an incomplete gear (1501) arranged on the rod wall of the third rotating rod (15), and a belt (1502) arranged between the third rotating rod (15) and the first rotating rod (11).

8. The net bag type boat drag scraper for removing floating mud layer according to claim 1, characterized in that: A protective shell (20) is provided at the bottom of the storage frame (3), and a pulling mechanism is provided inside the protective shell (20). The pulling mechanism comprises a curved rod (17) slidably arranged between the protective shell (20) and the storage frame (3), a limiting sleeve (1701) sleeved on the outside of the wire rope (6), and a reciprocating component arranged inside the protective shell (20) for pushing the curved rod (17) back and forth, and one end of the curved rod (17) located inside the storage frame (3) is connected to the limiting sleeve (1701).

9. The net bag type boat drag scraper for removing floating mud layer according to claim 8, characterized in that: The reciprocating assembly comprises a third active bevel gear (403) arranged on a rotating shaft (401) extending to one end inside the protective shell (20), a fourth rotating rod (19) rotatably arranged on the inner wall of the protective shell (20), a third driven bevel gear (1901) and a cam (18) arranged on the rod wall of the fourth rotating rod (19), a pulley (1801) arranged on one end of the curved rod (17) located inside the protective shell (20), and a second spring (1702) arranged on the rod wall of the curved rod (17).

10. The net bag type boat drag scraper for removing floating mud layer according to claim 1, characterized in that: The side wall of the storage frame (3) is provided with a rib plate (22), the side wall of the rib plate (22) is provided with a positioning plate (2201), the top of the fixed frame (1) is provided with a plurality of buoys (23), and the bottom of the fixed frame (1) is provided with a plurality of anchor ball markers (24).

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