A device and method for salvaging floating garbage on the water surface

Abstract

The present invention discloses a device and a method for salvaging floating garbage on the water surface. The salvaging device includes a hull, a water squeezing device and a drainage device. A first conveyor belt for salvaging floating garbage is provided on the hull. A squeezing cam is arranged inside the housing of the water squeezing device. A squeezing channel for the floating garbage to pass through is provided between the squeezing cam and the inner wall of the housing of the water squeezing device. A first feed inlet located directly below the output end of the first conveyor belt is provided at the upper end of the squeezing channel. Drainage holes are provided on the side wall of the housing of the squeezing channel to drain the water squeezed out of the floating garbage by the rotation of the squeezing cam. The lower end of the squeezing channel is an upwardly opening discharge port. The drainage device is arranged downstream of the drainage holes to discharge the water squeezed out of the drainage holes to the outside of the hull. The salvaging device of the present invention can perform preliminary dehydration treatment on the floating garbage and algae, reduce the weight of the floating garbage and algae garbage, enable the salvage ship to carry more floating garbage and algae, and improve the salvaging ability and convenience.

Description

Technical Field

[0001] The present invention relates to a salvage device, and more particularly to a device and method for salvaging floating garbage on the water surface. Background Art

[0002] There are usually a lot of floating garbage on the water surface in the rivers of densely populated areas, such as waste paper and plastic films. Usually, these rivers also have the characteristics of eutrophication of water bodies, and a large number of algae plants are floating on the water surface. At present, most of the floating garbage is salvaged by a conveyor belt type salvage ship. When salvaging the floating garbage in the above-mentioned rivers, since the floating garbage is mixed in the water algae, the conveyor belt will salvage the algae plants onto the hull together. The algae plants carry a large amount of water, and the weight generated by their accumulation in the hull is extremely large, resulting in less floating garbage salvaged by the salvage ship each time, and it is necessary to frequently go back and forth to load and unload the floating garbage. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a device and method for salvaging floating garbage on the water surface.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] On the one hand, the present invention provides a device for salvaging floating garbage on the water surface, including a hull, on which a first conveyor belt for salvaging floating garbage is provided, and further including:

[0006] A water squeezing device, in the shell of which there is a squeezing cam. There is a squeezing channel for floating garbage to pass between the squeezing cam and the inner wall of the shell of the water squeezing device. The upper end of the squeezing channel is provided with a first feed port directly below the output end of the first conveyor belt. Drainage holes are provided on the side wall of the shell of the squeezing channel to discharge the water squeezed out of the floating garbage by the rotation of the squeezing cam. The lower end of the squeezing channel is an upwardly opening discharge port.

[0007] A drainage device, which is arranged downstream of the drainage hole and is used to discharge the water squeezed out of the drainage hole to the outside of the hull.

[0008] Preferably, the driving wheel in the first conveyor belt is meshed and driven with a set of gears arranged in the hull. A set of belt wheels are coaxially arranged on the gears, and the belt wheels are connected to the rotating shaft of the squeezing cam through a set of belts.

[0009] Preferably, a set of blades for cutting floating garbage are provided on the first feed port of the water squeezing device, and the blades are arranged on the first feed port so as to be horizontally reciprocatingly inserted and withdrawn.

[0010] Preferably, a cutting device is further provided in the hull, and the cutting device includes the blades, and:

[0011] A plurality of guide rails are arranged on both sides of the water squeezing device along the moving direction of the blade;

[0012] A frame is slidably penetrated through the plurality of guide rails. A tool rest for installing the blade is provided on the frame, so as to drive the blade to be inserted / extracted from the first feed port through the movement of the frame;

[0013] A fixer is fixedly arranged at the end of the rotating shaft of the extrusion cam;

[0014] A connecting arm, the first end of which is slidably inserted into the fixer, and the second end of which is rotatably connected to the frame; the sliding direction of the connecting arm is perpendicular to the axis of the rotating shaft of the extrusion cam, and the axis of rotation of the second end of the connecting arm is parallel to the axis of the rotating shaft of the extrusion cam, so as to drive the horizontal reciprocating movement of the frame through the rotation of the extrusion cam.

[0015] Preferably, a second conveyor belt is further arranged below the discharge port of the water squeezing device, and the second conveyor belt is used to convey the squeezed and dehydrated floating garbage to the tail of the hull.

[0016] Preferably, a water storage bin is further arranged in the hull downstream of the drain hole, and the drainage device is arranged in the water storage bin;

[0017] The drainage device includes an outer cylinder and a piston telescopically arranged in the outer cylinder. The end of the piston is connected to the frame to drive the change of the internal cavity size of the outer cylinder;

[0018] The outer cylinder is connected with a water inlet pipe and a drain pipe. The water inlet pipe is communicated with the bottom of the water storage bin, and the drain pipe faces the outside of the hull; one-way valves are arranged on both the water inlet pipe and the drain pipe to unidirectionally drain the water in the water storage bin to the outside of the hull through the drainage device.

[0019] Preferably, a plurality of nozzles are arranged at the downstream end of the drain pipe, and the nozzles face the bottom of the first conveyor belt.

[0020] Preferably, a group of guide posts are vertically arranged in the water storage bin. A group of floating cylinders that can only slide up and down are sleeved on the guide posts, and a group of through holes are arranged on the floating cylinders;

[0021] The end of the water inlet pipe is connected to a group of pipe joints through a hose section, and the pipe joints and the socket are sleeved on the guide column in an upper and lower manner opposite to each other; an annular groove is provided on the outer wall of the pipe joint, and a pin block that can slide along the radial direction of the socket is provided in the socket, and magnetic parts that repel each other are provided on the pin block and the inner wall of the socket, and the repulsive force of the magnetic parts pushes the pin block to be inserted into the annular groove, so that the pipe joint floats above the liquid level of the water storage tank;

[0022] The inner top of the water storage tank is provided with a push rod opposite to the insertion hole, the pin block is provided with a wedge-shaped groove, and a push pin is inserted above the wedge-shaped groove; when the float rises to make the push rod contact the push pin, the push pin moves down to squeeze the wedge-shaped groove, so that the pin block is separated from the annular groove, and the pipe joint slides to the bottom of the water storage tank for drainage.

[0023] Preferably, a wedge-shaped surface is further provided on one side of the pin block surface in sliding contact with the pipe joint, and when the float moves down to the bottom of the water storage tank, the float causes the pin block to re-enter the annular groove under its own gravity.

[0024] On the other hand, the present invention also provides a salvaging method using the above-mentioned floating garbage salvaging device on the water surface, comprising the following steps:

[0025] S1, the first conveyor belt conveys the floating garbage and algae on the water surface to the first feed inlet of the squeezing device;

[0026] S2, the blade moves back and forth to cut the floating garbage and algae into several sections;

[0027] S3, the floating garbage and algae cut into segments intermittently enter the extrusion channel, and the extrusion cam squeezes and dehydrates the floating garbage and algae in the extrusion channel and discharges them along the discharge port.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The salvaging device of the present invention is provided with a water squeezing device, which can perform preliminary dehydration treatment on floating garbage and algae, reduce the water weight of floating garbage and algae garbage, so that the salvaging ship can carry more floating garbage and algae, and improve the salvaging capacity and convenience;

[0030] In addition, since the plastic film in the floating garbage is easily mixed with algae plants, forming longer strips of garbage, which block or even entangle the extrusion cam, causing the drive motor to overload or even get stuck, causing equipment damage; for this reason, the present invention is also provided with a reciprocating cutting blade to cut the above-mentioned garbage into segments to prevent the garbage from being too long, and the reciprocating movement of the blade can form intermittent feeding for the extrusion cam, reducing the risk of winding and jamming of the extrusion cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the internal structure of the salvage device of the present invention;

[0032] Figure 2 Isometric view of the water squeezing device of the present invention;

[0033] Figure 3 Is Figure 1 Enlarged view of part A of

[0034] Figure 4 Is Figure 3 Enlarged view of part C of

[0035] Figure 5 Is Figure 2 Enlarged view of part B of Detailed implementation manner

[0036] The present invention will be further described below in conjunction with the drawings and embodiments:

[0037] Referring to Figures 1 to 5 , the present invention provides a water surface floating garbage salvage device, which includes structures such as a hull 1, a first conveyor belt 2, a water squeezing device 3, a second conveyor belt 4, and a drainage device 5.

[0038] Among them, referring to Figure 1 , a salvage opening 10 is provided at the front end of the hull 1, the first conveyor belt 2 is inclinedly installed on the salvage opening 10, the lower end of the first conveyor belt 2 is in contact with the river surface forward, and the higher end faces the middle of the hull 1; a number of needle-shaped protrusions are provided on the surface of the first conveyor belt 2. During the rotation of the first conveyor belt 2, floating garbage and algae plants in the river can be conveyed onto the hull 1.

[0039] In the present invention, the runner at the higher end of the first conveyor belt 2 is the driving wheel 20 of the first conveyor belt 2, which is connected to a driving motor to drive the operation of the entire first conveyor belt 2.

[0040] The water squeezing device 3 is arranged inside the hull 1, and it adopts a metal shell structure for preliminary dehydration of floating garbage and algae plants to reduce the load of the hull 1. A first feed inlet 31 is provided at the upper end of the water squeezing device 3, and the output end of the first conveyor belt 2 is located directly above the first feed inlet 31. The salvaged garbage falls into the lower first feed inlet 31 along the output end of the first conveyor belt 2.

[0041] Referring to Figure 1, a second feed inlet 32 is further provided below the side of the first feed inlet 31. The second feed inlet 32 is located below the first conveyor belt 2, and a first cleaning wheel 21 is provided on the second feed inlet 32. There are brushes on the wheel. For the garbage residues that have not completely fallen off the first conveyor belt 2, they can be cleaned by the first cleaning wheel 21, so that the garbage residues on the first conveyor belt 2 can enter the water squeezing device 3 along the second feed inlet 32. Therefore, the rotation direction of the first cleaning wheel 21 is opposite to that of the first conveyor belt 2. The first cleaning wheel 21 can be driven independently by a motor, or as in this embodiment, the driving wheel 20 is connected to the first cleaning wheel 21 through a belt.

[0042] Refer to Figure 1 , a squeezing cam 30 is rotatably provided in the housing of the water squeezing device 3. There is a squeezing channel 33 for floating garbage to pass through between the squeezing cam 30 and the inner wall of the housing. Among them, the upper end of the squeezing channel 33 communicates with the first feed inlet 31 and the second feed inlet 32. The squeezing channel 33 gradually becomes narrower from top to bottom. The lower section of the squeezing channel 33 is a curved arc, and its end is provided with a discharge port in an upwardly inclined state.

[0043] Refer to Figure 1 and Figure 2 , a drain hole 3a is provided on the side wall of the housing of the circular arc part on the lower left side of the squeezing channel 33. During the rotation of the squeezing cam 30, the floating garbage and algae plants are squeezed for dehydration. The dehydrated garbage is discharged along the discharge port, and the squeezed water is discharged through the drain hole 3a.

[0044] Refer to Figure 1 , a water storage bin 11 is further provided in the hull 1 below the side of the drain hole 3a. The water discharged from the drain hole 3a is stored in the water storage bin 11 after passing through the filter screen.

[0045] Refer to Figure 1 , in one embodiment, a second cleaning wheel 34 is further provided above the discharge port for cleaning the garbage residues on the squeezing cam 30. The second cleaning wheel 34 is connected to the rotating shaft of the squeezing cam 30 through belt drive. The second cleaning wheel 34 can directly sweep the garbage residues on the squeezing cam 30 out along the discharge port.

[0046] In addition, a drainage device 5 is provided downstream of the drain hole 3a for discharging the water squeezed out from the drain hole 3a to the outside of the hull 1. The drainage device 5 can be a structure such as a water pump.

[0047] In this embodiment, refer to Figure 1 , in order to realize the synchronous operation of the squeezing cam 30 and the first conveyor belt 2,

[0048] The driving wheel 20 is meshed with a group of gears 22 arranged in the hull 1 for transmission. A group of pulleys 220 are coaxially arranged on the gears 22. The pulleys 220 are connected to the rotating shaft of the extrusion cam 30 through a group of belts 221 for transmission.

[0049] When the extrusion cam 30 stops rotating, the first conveyor belt 2 stops rotating at the same time, so as to prevent the garbage conveyed by the first conveyor belt 2 from accumulating at the first feed port 31 .

[0050] In addition, in the current actual salvage operation, there is still a phenomenon that film-like garbage and algae-like garbage are too long and mixed together to form a garbage belt, causing the extrusion cam 30 to be entangled and stuck. To solve the above problem, the present invention also provides the following structure:

[0051] Reference Figure 1 A group of blades 620 for cutting floating garbage are also provided on the first feed port 31 of the water squeezing device 3. The blades 620 can be set on the first feed port 31 to be reciprocated left and right, that is, the garbage transported on the first conveyor belt 2 is cut into segments by the reciprocating blades 620 during the falling process. When the blades 620 are cutting, they simultaneously block the first feed port 31. When the blades 620 are withdrawn, the garbage continues to fall for the next cutting.

[0052] In one embodiment, the blade 620 is disposed in a group of cutting devices 6. Figure 2 , the cutting device 6 also includes:

[0053] A plurality of guide rails 60, in this embodiment, four sets of guide rails 60, which are arranged on both sides of the water squeezing device 3, and two sets of guide rails 60 on the same side are arranged in parallel up and down, and the extending direction of the guide rails 60 is parallel to the reciprocating direction of the blade 620;

[0054] A frame 61, wherein four sets of second sliding sleeves are provided on the frame 61, and the four sets of second sliding sleeves can be slidably sleeved on the four sets of guide rails 60. A knife holder 62 for mounting the blade 620 is provided above the frame 61, and the knife holder 62 can be slidably penetrated on the shell side wall of the water squeezing device 3. The left and right movement of the frame 61 can drive the blade 620 to be inserted into or withdrawn from the first feed port 31;

[0055] Reference Figure 5, In addition, a fixator 63 is provided at the end of the rotating shaft of the extrusion cam 30 outside the water squeezing device 3. A set of connecting arms 630 are inserted into the fixator 63. It is easy to understand that the connecting arms 630 are also provided with limit protrusions to prevent them from detaching from the fixator 63. Among them, the first end of the connecting arm 630 is slidably inserted into the fixator 63, the second end of the connecting arm 630 is rotatably connected to the frame 61, and the sliding direction of the connecting arm 630 is perpendicular to the axis of the rotating shaft of the extrusion cam 30, that is, the connecting arm 630 constitutes a swing arm structure during the rotation of the extrusion cam 30, and the length of this swing arm structure is adjustable in extension and retraction.

[0056] In addition, the axis of rotation of the second end of the connecting arm 630 is parallel to the axis of the rotating shaft of the extrusion cam 30. Specifically, a set of third sliding sleeves 611 are rotatably connected to the second end of the connecting arm 630, and the third sliding sleeves 611 are slidably sleeved on the frame 61 up and down.

[0057] Through the above settings of the cutting device 6, each 360° rotation of the extrusion cam 30 will drive the frame 61 to make a reciprocating horizontal movement once, and then the blade 620 completes a cutting action. After the blade 620 finishes cutting and retracts, the garbage accumulated above the blade 620 will fall into the lower extrusion channel 33 again. In this way, it can realize intermittent feeding of the water squeezing device 3.

[0058] In addition, referring to Figure 1 , a second conveyor belt 4 is further provided below the discharge port of the water squeezing device 3. The second conveyor belt 4 is used to convey the squeezed and dehydrated floating garbage to the tail of the hull 1 for easy stacking and handling by the operators. A number of partitions 40 are evenly arranged on the second conveyor belt 4 to prevent the dehydrated garbage from slipping off the second conveyor belt 4.

[0059] Referring to Figure 1 , the water inlet 110 of the water storage bin 11 is arranged at the lower left side of the drain hole 3a of the water squeezing device 3, and the drainage device 5 is arranged above the water storage bin 11.

[0060] In one embodiment, referring to Figure 1 , the drainage device 5 includes a horizontally arranged outer cylinder and a piston 612 telescopically arranged in the outer cylinder. The piston 612 and the outer cylinder form a closed structure with an adjustable inner cavity size.

[0061] The end of the piston 612 is connected to the frame 61. The left and right movement of the frame 61 drives the size of the inner cavity of the outer cylinder to change.

[0062] Referring to Figure 1, the outer cylinder is connected with a water inlet pipe 51 and a drain pipe 50. The water inlet pipe 51 communicates with the bottom of the water storage bin 11, and the drain pipe 50 faces the outside of the hull 1. One-way valves are provided on both the water inlet pipe 51 and the drain pipe 50, so as to unidirectionally drain the water in the water storage bin 11 to the outside of the hull 1 through the drainage device 5.

[0063] In addition, in one embodiment, a plurality of nozzles 500 are provided at the downstream end of the drain pipe 50. The plurality of nozzles 500 face the bottom of the first conveyor belt 2, and while the water can be discharged outside the hull 1, the surface of the first conveyor belt 2 can be flushed.

[0064] Refer to Figure 1 , in one embodiment, a set of guide columns 530 are vertically arranged in the water storage bin 11. A set of floating cylinders 53 that can only slide up and down are sleeved on the guide columns 530. The floating cylinders 53 are also sleeved on the rigid water inlet pipe 510, so that the floating cylinders 53 can only move up and down with the water level and cannot rotate. A set of through holes 531 are provided on the floating cylinders 53.

[0065] A set of ejector rods 52 are provided at the inner top of the water storage bin 11, and the ejector rods 52 are located directly above the through holes 531.

[0066] Refer to Figure 3 and Figure 4 , the lower end of the water inlet pipe 51 extends to the inner bottom of the water storage bin 11, and its end is connected with a set of pipe joints 7 through a hose section 510. The pipe joints 7 are sleeved on the guide columns 530 opposite to the through holes 531 up and down, that is, the pipe joints 7 are sleeved on the guide columns 530 through a set of first sliding sleeves 511. During the up and down sliding of the pipe joints 7, they are always opposite to the through holes 531 up and down.

[0067] Among them, refer to Figure 4 , a ring groove 71 is provided on the outer wall of the pipe joint 7. A bracket 8 is provided in the through hole 531. Four sets of pin blocks 82 that can slide radially along the through hole 531 are slidably arranged in the bracket 8. The four sets of pin blocks 82 are arranged around the axis of the through hole 531. A fourth magnetic member 820 is provided on the pin blocks 82, and a third magnetic member 81 that repels it is provided on the inner wall of the through hole 531. Through the repulsive force of the magnetic members, or a compressed spring is provided between the pin blocks 82 and the inner wall of the through hole 531, the pin blocks 82 are pushed into the ring groove 71, and the pipe joint 7 is locked in the through hole 531. As the floating cylinder 53 floats, the pipe joint 7 floats above the liquid level of the water storage bin 11, and the water inlet pipe 51 cannot suck the accumulated water in the water storage bin 11.

[0068] In addition, refer to Figure 3 and Figure 4The pin block 82 is also provided with a wedge-shaped groove 822, and a ejector pin 83 is inserted above the wedge-shaped groove 822. The ejector pin 83 is supported above the wedge-shaped groove 822 by a second elastic member 820, and a set of ejector plates 84 are installed above the four sets of ejector pins 83.

[0069] When the water stored in the water storage tank 11 is sufficient to complete the cleaning of the first conveyor belt 2, that is, when the buoy 53 rises to make the push rod 52 contact the top plate 84, the buoy 53 continues to float up, causing the push rod 52 to squeeze the push pin 83, and the push pin 83 moves downward to squeeze the wedge-shaped groove 822, so that the pin block 82 moves to the top plate 84. Figure 4 The pin block 82 is moved to the left side in the annular groove 71, and the pipe joint 7 slides to the bottom of the water storage tank 11. At this time, the water inlet pipe 51 can be sucked down by the drainage device 5 to pump out the water in the water storage tank 11.

[0070] In addition, refer to Figure 4 A wedge-shaped surface 821 is also provided on one side of the surface of the pin block 82 that is in sliding contact with the pipe joint 7. When the water level drops and the float 53 moves down to the bottom of the water storage tank 11, since the insertion hole 531 is opposite to the pipe joint 7 in upper and lower directions, the float 53 makes the wedge-shaped surface 821 of the pin block 82 transitionally contact with the pipe joint 7 under its own gravity, and is re-stuck into the annular groove 71 under the repulsive force of the third magnetic member 81 and the fourth magnetic member 820.

[0071] Through the above method, the automatic connection and disconnection between the pipe joint 7 and the socket 531 can be realized, so that the water in the water storage tank 11 can be accumulated and discharged for utilization.

[0072] In addition, refer to Figure 4 In another embodiment, a second magnetic component 80 is further provided at the lower end of the bracket 8, and a first magnetic component 70 is embedded at the upper end of the pipe joint 7. The first magnetic component 70 and the second magnetic component 80 are both mutually attractive magnetic ring structures, which facilitates the automatic docking of the pipe joint 7 and the socket 531.

[0073] In addition, the present invention also discloses a salvaging method using the above-mentioned floating garbage salvaging device on the water surface, which comprises the following steps:

[0074] S1, the first conveyor belt 2 conveys the floating garbage and algae on the water surface to the first feed port 31 of the squeezing device 3;

[0075] S2, the driving wheel 20 of the first conveyor belt 2 drives the extrusion cam 30 to operate and extrusion dehydration, and at the same time drives the blade 620 to reciprocate through the cutting device 6 to cut the floating garbage and algae into several sections to prevent them from blocking the extrusion channel 33 and winding around the extrusion cam 30;

[0076] S3. The cut floating garbage and algae intermittently enter the extrusion channel 33. The extrusion cam 30 extrudes and dehydrates the floating garbage and algae in the extrusion channel 33 and discharges them along the discharge port. At the same time, the extruded water flows into the water storage bin 11;

[0077] S4. The water level of the water stored in the water storage bin 11 causes the float 53 to float. When the ejector rod 52 abuts against the top plate 84, the pin block 82 in the bracket 8 automatically opens, and the pipe joint 7 drops to the bottom of the water storage bin 11. At this time, water enters the water inlet pipe 51, and through the suction of the drainage device 5, the first conveyor belt 2 is washed by the nozzle 500;

[0078] S5. When the water level in the water storage bin 11 drops to the bottom, the float 53 moves down and squeezes, causing the pipe joint 7 to be reinserted into the bracket 8 to wait for the next water storage completion and drainage action.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A floating garbage salvaging device on a water surface, comprising a hull (1), wherein the hull (1) is provided with a first conveyor belt (2) for salvaging floating garbage, characterized in that: Further comprising: A water squeezing device (3), in which an extrusion cam (30) is arranged inside the housing. There is an extrusion channel (33) for floating garbage to pass through between the extrusion cam (30) and the inner wall of the housing of the water squeezing device (3). A first feed inlet (31) located directly below the output end of the first conveyor belt (2) is provided at the upper end of the extrusion channel (33); a drain hole (3a) is provided on the side wall of the housing of the extrusion channel (33) to drain the water squeezed out of the floating garbage by the rotation of the extrusion cam (30); an outlet is provided at the lower end of the extrusion channel (33); A drainage device (5), which is arranged downstream of the drain hole (3a) and is used to drain the water squeezed out of the drain hole (3a) to the outside of the hull (1); A set of blades (620) for cutting floating garbage is provided on the first feed inlet (31) of the water squeezing device (3), and the blades (620) are arranged on the first feed inlet (31) so as to be horizontally reciprocatingly inserted and withdrawn; A cutting device (6) is further provided inside the hull (1). The cutting device (6) includes the blades (620), and: A plurality of guide rails (60), and the plurality of guide rails (60) are arranged on both sides of the water squeezing device (3) extending along the moving direction of the blades (620); A frame (61) is slidably penetrated through the plurality of guide rails (60). A tool rest (62) for installing the blades (620) is provided on the frame (61), so as to drive the blades (620) to be inserted / withdrawn from the first feed inlet (31) through the movement of the frame (61); A fixer (63) is fixedly arranged at the end of the rotating shaft of the extrusion cam (30); A connecting arm (630), the first end of which is slidably inserted into the fixer (63), and the second end is rotatably connected to the frame (61); the sliding direction of the connecting arm (630) is perpendicular to the axis of the rotating shaft of the extrusion cam (30), and the axis of rotation of the second end of the connecting arm (630) is parallel to the axis of the rotating shaft of the extrusion cam (30), so as to drive the horizontal reciprocating movement of the frame (61) through the rotation of the extrusion cam (30).

2. The floating garbage salvaging device according to claim 1, characterized in that: The driving wheel (20) inside the first conveyor belt (2) is meshed and driven with a set of gears (22) arranged inside the hull (1). A set of belt wheels (220) are coaxially arranged on the gears (22), and the belt wheels (220) are drivingly connected to the rotating shaft of the extrusion cam (30) through a set of belts (221).

3. The floating garbage salvaging device according to claim 1 or 2, characterized in that: A second conveyor belt (4) is further provided below the outlet of the water squeezing device (3), and the second conveyor belt (4) is used to convey the floating garbage after extrusion dehydration to the tail of the hull (1).

4. The floating garbage salvaging device according to claim 1, characterized in that: A water storage bin (11) located downstream of the drain hole (3a) is further provided inside the hull (1), and the drainage device (5) is arranged inside the water storage bin (11); The drainage device (5) includes an outer cylinder and a piston (612) telescopically arranged inside the outer cylinder. The end of the piston (612) is connected to the frame (61) to drive the change of the internal cavity size of the outer cylinder; The outer cylinder is connected with a water inlet pipe (51) and a drain pipe (50). The water inlet pipe (51) communicates with the bottom of the water storage bin (11), and the drain pipe (50) faces the outside of the hull (1). One-way valves are provided on both the water inlet pipe (51) and the drain pipe (50) to unidirectionally drain the water in the water storage bin (11) to the outside of the hull (1) through the drainage device (5).

5. The floating garbage salvaging device according to claim 4 is characterized in that: A plurality of spray nozzles (500) are provided at the downstream end of the drain pipe (50), and the spray nozzles (500) face the bottom of the first conveyor belt (2).

6. The floating garbage salvaging device according to claim 5, characterized in that: A set of guide columns (530) are vertically arranged in the water storage bin (11). A set of floating cylinders (53) that can only slide up and down are sleeved on the guide columns (530). A set of through holes (531) are provided on the floating cylinders (53). The end of the water inlet pipe (51) is connected with a set of pipe connectors (7) through a hose section (510). The pipe connectors (7) are sleeved on the guide columns (530) opposite to the through holes (531) up and down. An annular groove (71) is provided on the outer wall of the pipe connector (7). A pin block (82) that can slide radially along the through hole (531) is provided in the through hole (531). Repulsive magnetic members are provided on the pin block (82) and the inner wall of the through hole (531). The pin block (82) is pushed into the annular groove (71) by the repulsive force of the magnetic members, so that the pipe connector (7) floats above the liquid level of the water storage bin (11). A push rod (52) opposite to the through hole (531) is provided at the inner top of the water storage bin (11). A wedge-shaped groove (822) is provided on the pin block (82), and a thimble (83) is inserted above the wedge-shaped groove (822). When the floating cylinder (53) rises to make the push rod (52) contact the thimble (83), the thimble (83) moves down to squeeze the wedge-shaped groove (822), so that the pin block (82) disengages from the annular groove (71), and the pipe connector (7) slides to the bottom of the water storage bin (11) for drainage.

7. The floating garbage salvaging device according to claim 6, characterized in that: One side of the surface of the pin block (82) that is in sliding contact with the pipe connector (7) is also provided with a wedge-shaped surface (821). When the floating cylinder (53) moves down to the bottom of the water storage bin (11), the floating cylinder (53) makes the pin block (82) re-engage into the annular groove (71) under its own gravity.

8. A salvage method using the water surface floating garbage salvage device as described in claim 1, characterized in that, Including the following steps: S1. The first conveyor belt (2) conveys the floating garbage and algae on the water surface into the first feed inlet (31) of the water squeezing device (3). S2. The blade (620) reciprocates to cut the floating garbage and algae into several sections. S3. The cut floating garbage and algae intermittently enter the extrusion channel (33). The extrusion cam (30) extrudes and dehydrates the floating garbage and algae in the extrusion channel (33) and discharges them along the discharge port.

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