Offshore floating object automatic collection device based on cam link mechanism

Abstract

The present application belongs to the technical field of salvaging and cleaning ocean floating objects, and relates to an offshore floating object automatic collecting device based on a cam connecting rod mechanism. The offshore floating object automatic collecting device can efficiently and conveniently collect offshore floating objects in complex environments. The technical solution comprises a base, an inner barrel, a drainage member and a power member. The base comprises at least an outer barrel with an opening facing upwards, and the lower part of the outer barrel is provided with a drainage port. The inner barrel is movably arranged in the outer barrel, and the inner barrel has a tendency to reciprocally run along its axial direction. The lower part of the inner barrel is provided with a small hole communicating with the outer barrel. The drainage member is fixed to the outer barrel, and the drainage member communicates with the drainage port. The drainage member is provided with a water outlet, and is configured to absorb the liquid in the outer barrel and discharge it to the outside of the offshore floating object automatic collecting device. The power member is fixedly connected with the base, and is also fixedly connected with the inner barrel and the drainage member. The power member is configured to drive the inner barrel to run in the vertical direction, and drive the drainage member to act.

Description

Technical Field

[0001] This invention belongs to the field of marine floating debris salvage and cleaning technology, and relates to an automatic nearshore floating debris collection device based on a cam linkage mechanism. Background Technology

[0002] Current methods for collecting nearshore floating debris mainly rely on manual labor or garbage ships, which are energy-intensive, inefficient, and have limited applications.

[0003] For example, the environmentally friendly garbage collection vessel (patent authorization number CN216003005U) developed by Suining Jiqing Shipbuilding Co., Ltd. uses a garbage collection structure at the stern of the hull to collect floating garbage. However, this structure can only be used in relatively wide open waters. The equipment is large, consumes a lot of energy, and is not suitable for collecting nearshore floating objects.

[0004] In recent years, the development of novel automatic collectors for floating debris has been a key research focus in nearshore debris dredging and cleanup. Traditional collectors mostly employ worm gear transmission mechanisms, resulting in high noise levels, low energy efficiency, and large size, hindering widespread adoption. To address this, Jianghan University (patent authorization number CN217128177U) proposed a floating debris collection device that uses a hook to capture floating debris on the water surface, then uses a crushing device to pulverize and collect it. However, this method still falls under the traditional mechanical capture-based collection method, which has limitations such as low collection efficiency, difficulty in collecting smaller floating objects, and inability to be used in narrow waterways.

[0005] In addition, the floating debris collection device proposed by China Yangtze Power Co., Ltd. (patent authorization number CN215593939U) uses a rotating roller to drive a conveyor belt and uses a pusher plate on the conveyor belt to collect the floating debris. However, belt drive has the problems of low energy transmission efficiency, bulky device and difficulty in carrying. Summary of the Invention

[0006] To overcome the shortcomings of the aforementioned related technologies, the present invention provides an automatic nearshore floating debris collection device based on a cam linkage mechanism, which can efficiently and conveniently collect nearshore floating debris in complex environments.

[0007] To achieve the above-mentioned technical objectives, the present invention provides an automatic nearshore floating debris collection device based on a cam-linkage mechanism. The automatic nearshore floating debris collection device based on a cam-linkage mechanism includes: a base, an inner barrel, a drainage component, and a power component. The base includes at least an outer barrel with an upward-opening portion, and a drain outlet is provided at the lower part of the outer barrel. The inner barrel is movably disposed within the outer barrel and has a tendency to reciprocate upwards along its axial direction. A small hole communicating with the outer barrel is provided at the lower part of the inner barrel. The drainage component is fixed to the outer barrel, communicates with the drain outlet, and has a water outlet. The drainage component is configured to absorb liquid from the outer barrel and discharge it to the outside of the automatic nearshore floating debris collection device. The power component is fixedly connected to the base, and also fixedly connected to the inner barrel and the drainage component. The power component is configured to drive the inner barrel to move vertically and to drive the drainage component to operate.

[0008] The drainage component includes a flow guide valve, an outer baffle, and a water storage bladder. The flow guide valve is a plate-shaped structure, fixedly connected to the inner tub. It is configured to open the drain outlet as the inner tub rises and close the drain outlet as the inner tub descends. The outer baffle is also a plate-shaped structure, with one end hinged to the upper part of the outer wall of the outer tub and the other end hinged to a linkage mechanism. The linkage mechanism is hinged to the power component, and the other end of the outer baffle rotates around the hinge point between the outer baffle and the outer tub under the drive of the linkage mechanism, moving the other end of the outer baffle closer to or further away from the outer tub. The water storage bladder is positioned between the outer baffle and the outer tub, and is fixedly connected to both. It communicates with the drain outlet and has a through hole.

[0009] Preferably, the base further includes a chassis, which is disposed directly below the outer barrel, and the chassis and the outer barrel are fixedly connected by a plurality of straight rods.

[0010] The power component includes an output component, a cylindrical cam, and a first drive disk. The output component is fixedly connected to the base. A first contour curve groove is provided on the outer wall of the cylindrical cam, and the output shaft of the output component is coaxially and fixedly connected to the cylindrical cam. The first drive disk is an annular component, with a first rigid roller fixed to its inner side. The first drive disk has multiple first constraint through holes, each corresponding to a single straight rod. The first drive disk is fitted onto the outer side of the cylindrical cam, and the first rigid roller is movably disposed within the first contour curve groove. A straight rod is movably disposed within each first constraint through hole. The first drive disk is fixed to the inner barrel.

[0011] Preferably, the first contour curve groove includes: a first curve groove, a second curve groove, a third curve groove, and a fourth curve groove. The first curve groove is an open groove located on the outer wall of the cylindrical cam and in a horizontal plane. The second curve groove is an open groove located on the outer wall of the cylindrical cam and in a horizontal plane, and the second curve groove is higher than the first curve groove. The third curve groove is an open groove located on the outer wall of the cylindrical cam, and the first curve groove communicates with the second curve groove through the third curve groove. The fourth curve groove is an open groove located on the outer wall of the cylindrical cam, and the first curve groove communicates with the fourth curve groove through the third curve groove; the third curve groove and the fourth curve groove are symmetrical about at least one vertical plane.

[0012] Preferably, a second contour curve groove is also provided on the outer wall of the cylindrical cam. The second contour curve groove is located entirely below the first curve groove, and the vertical distance between the lowest end of the second contour curve groove and the highest end of the second contour curve groove is greater than the vertical distance between the lowest end of the first contour curve groove and the highest end of the first contour curve groove.

[0013] The second contour curve groove includes a fifth curve groove and a sixth curve groove. The fifth curve groove is an open groove located on the outer wall of the cylindrical cam and in a horizontal plane, directly below the first curve groove. The arc length of the fifth curve groove is the same as that of the first curve groove. The sixth curve groove is located on the outer wall of the cylindrical cam and connects with both ends of the fifth curve groove to form a closed loop. The shape of the sixth curve groove, unfolded from the curved surface to the plane, is two symmetrical parabolic open grooves.

[0014] The power component further includes a second drive disc. The second drive disc is an annular piece, with a second rigid roller fixed to its inner side. The second drive disc has multiple second constraint through holes, each corresponding to one of the multiple straight rods. The second drive disc is fitted onto the outer side of the cylindrical cam, and the second rigid roller is movably disposed within the second contour curve groove. A straight rod is movably disposed within each second constraint through hole. Both the first and second drive discs are hinged to the linkage mechanism; the second drive disc is configured to provide operating power to the linkage mechanism.

[0015] Preferably, the linkage mechanism includes: a first link, a second link, and a third link. The first link is a straight rod structure, with one end hinged to the first drive disk. The second link is a straight rod structure, with one end hinged to the second drive disk. The third link is a straight rod structure, with one end hinged to the other ends of the first link and the second link, and the other end hinged to the other end of the outer baffle.

[0016] Preferably, the travel stroke of the first drive disc and the rotation angle of the cylindrical cam satisfy the following formula:

[0017]

[0018] in, The rise angle of the first contour curve groove, Let be the rotation angle of the cylindrical cam. The width of the first contour curve groove, 1 represents the travel distance of the first drive disk.

[0019] Preferably, the travel stroke of the second drive disc and the rotation angle of the cylindrical cam satisfy the following formula:

[0020]

[0021] in, The rise angle of the second contour curve groove, Let be the rotation angle of the cylindrical cam. The width of the second contour curve groove. 2 represents the travel distance of the second drive disk.

[0022] Preferably, the outer tub comprises polyvinyl chloride or polyimide plastic, and the inner tub comprises polyvinyl chloride or polyimide plastic.

[0023] Preferably, the nearshore floating debris automatic collection device further includes a controller, which includes at least a microprocessor and a remote signal module. The microprocessor is electrically connected to the remote signal module, and the remote signal module receives or uploads signals.

[0024] Preferably, the cylindrical cam further includes an opening at one end and an internal cavity therein, and the output component is disposed in the internal cavity of the cylindrical cam.

[0025] The beneficial effects of this invention are as follows:

[0026] First, the present invention adopts a structure in which the base and the inner barrel cooperate. The position of the entire device in the seawater is adjusted by the base. Even if the opening of the outer barrel is in the seawater and close to the junction of seawater and air, it is convenient for seawater and floating objects to flow into the inner barrel and for seawater to be discharged from the inner barrel during the raising and lowering process.

[0027] Secondly, the present invention uses a drainage component, which can provide a certain buoyancy to the base, so that when the inner barrel rises, the base can rise a certain distance along with it, facilitating the discharge of seawater from the inner barrel; and provide stable support to the base, which can reduce the possibility of the entire device being overturned by wind and waves.

[0028] Third, the cylindrical cam and linkage mechanism has the advantages of low noise, high energy utilization and simple driving method, which can effectively overcome the shortcomings of worm gear transmission mechanism. It can be adapted to the collection of nearshore floating objects in different complex environments by adjusting the motor power and the shape of the cam groove.

[0029] Fourth, the inner and outer barrels of this invention work together and both have a filtering function. The type of floating matter filtered can be controlled by changing the barrel wall material. Moreover, the filtration capacity is large at one time, and a large amount of filtration work can be completed in a short time, which is advantageous for collection work in large water areas.

[0030] Fifth, this invention also features energy saving and ease of remote control, has a wide range of applications and design expansion capabilities, and has broad application prospects. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural diagram of the present invention;

[0033] Figure 2 This is a cross-sectional view of a portion of the structure of the present invention;

[0034] Figure 3 This is a cross-sectional view of the cylindrical cam of the present invention;

[0035] Figure 4 This is a structural diagram of the first drive disk of the present invention;

[0036] Figure 5 This is a planar unfolded view of the first and second contour curve grooves of the present invention. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0041] Some embodiments of the present invention provide an automatic collection device for nearshore floating debris based on a cam-linkage mechanism. For example... Figure 1 and Figure 2 As shown, the nearshore floating debris automatic collection device based on a cam-linkage mechanism includes: a base 1, an inner barrel 2, a drainage component 3, and a power component 4. The base 1 includes at least an outer barrel 11 with an upward-opening design, and a drain outlet 12 at its lower part. The inner barrel 2 is movably disposed within the outer barrel 11 and tends to reciprocate upwards along its axial direction. A small hole communicating with the outer barrel 11 is provided at the lower part of the inner barrel 2. The drainage component 3 is fixed to the outer barrel 11, communicates with the drain outlet 12, and has a water outlet. The drainage component 3 is configured to absorb liquid within the outer barrel 11 and discharge it to the outside of the nearshore floating debris automatic collection device. The power component 4 is fixedly connected to the base 1, and also fixedly connected to the inner barrel 2 and the drainage component 3. The power component 4 is configured to drive the inner barrel 2 to move vertically and to drive the drainage component 3 to operate.

[0042] The drainage component 3 includes a flow guide valve 31, an outer baffle 32, and a water storage bladder 33. The flow guide valve 31 is a plate-shaped structure, fixedly connected to the inner tub 2. The flow guide valve 31 is configured to open the drain outlet 12 as the inner tub 2 rises, and to close the drain outlet 12 as the inner tub 2 descends. The outer baffle 32 is also a plate-shaped structure. One end of the outer baffle 32 is hinged to the upper part of the outer wall of the outer tub 11, and the other end is hinged to a linkage mechanism 5. The linkage mechanism 5 is hinged to the power component 4, and the other end of the outer baffle 32 rotates around the hinge position between the outer baffle 32 and the outer tub 11 under the drive of the linkage mechanism 5, causing the other end of the outer baffle 32 to approach or move away from the outer tub 11. A water storage bladder 33 is disposed between the outer baffle 32 and the outer barrel 11, and the water storage bladder 33 is fixedly connected to the outer baffle 32 and the outer barrel 11 respectively. The water storage bladder 33 is connected to the drain outlet 12, and a through hole is also provided on the water storage bladder 33.

[0043] In some examples, the base 1 may include an upward-opening outer tub 11, with a plurality of drain outlets 12 evenly distributed at the bottom. The base 1 may also include a chassis 13, which may be a circular plate, such as a circular metal sheet. The chassis 13 is positioned directly below the outer tub 11, and the chassis 13 and the outer tub 11 are fixedly connected by a plurality of straight rods. It is understood that the multiple straight rods are evenly arranged; for example, there may be four or six straight rods, evenly distributed between the chassis 13 and the outer tub 11.

[0044] The chassis 13 can increase the stability of the base 1. When the outer barrel 11 is deviated by the action of waves, it can provide a force to straighten the outer barrel 11.

[0045] The outer diameter of the inner tub 2 is smaller than the inner diameter of the outer tub 11, meaning the inner tub 2 can be movably installed within the outer tub 11. To prevent floating debris from potentially entering the gap between the outer tub 11 and the inner tub 2, the gap between the outer wall of the inner tub 2 and the inner wall of the outer tub 11 is greater than or equal to 2 cm. The lower part of the inner tub 2 has multiple small holes communicating with the outer tub 11. The diameter of these holes can be, for example, 1 mm, 2 mm, or 5 mm. These holes are used to drain seawater and filter floating debris into the inner tub 2.

[0046] The inner tub 2 can reciprocate along the vertical centerline (axial direction of the inner tub 2) of the outer tub 11 / inner tub 2 under external force. That is, the upper end of the inner tub 2 can be higher than the upper end of the outer tub 11, or the upper end of the inner tub 2 can be lower than or level with the upper end of the outer tub 11. In specific operation, the base 1 can be positioned below sea level. For example, if the upper end of the outer tub 11 is positioned below sea level, when the inner tub 2 moves upward along the vertical centerline of the outer tub 11 / inner tub 2, the upper end of the inner tub 2 is higher than sea level, preventing seawater from entering the inner tub 2. When the inner tub 2 moves downward along the vertical centerline of the outer tub 11 / inner tub 2, the upper end of the inner tub 2 is lower than sea level, allowing seawater and floating debris to enter the inner tub 2. It can be understood that when the inner tub 2 moves upward along the vertical centerline of the outer tub 11 / inner tub 2, the seawater in the inner tub 2 is discharged to the outside through the small hole and drain outlet 12, achieving the purpose of retaining floating debris in the inner tub 2.

[0047] The inner barrel 2 can be driven by the power component 4.

[0048] In other examples, the automatic nearshore floating debris collection device, in addition to the components mentioned in the examples above, may also include a drainage component 3. The drainage component 3 may include a flow guide valve 31, an outer baffle 32, and a water storage bladder 33. The flow guide valve 31 may be located inside the outer tub 11 and below the inner tub 2. The flow guide valve 31 may be an annular component adapted to the side wall structure of the outer tub 11. The flow guide valve 31 can reciprocate along the vertical centerline of the outer tub 11 following the inner tub 2. When the inner tub 2 rises within the outer tub 11, the flow guide valve 31 rises accordingly, moving away from the drain outlet 12, allowing the outer tub 11 to communicate with the outside through the drain outlet 12. When the inner tub 2 descends within the outer tub 11, the flow guide valve 31 descends accordingly, approaching the drain outlet 12 and shutting off the drain outlet 12.

[0049] There are multiple outer baffles 32, for example, six or eight. Each outer baffle 32 is a plate component. One end of the outer baffle 32 is hinged to the side wall of the outer barrel 11, and the other end of the outer baffle 32 can rotate around its hinge point with the outer barrel 11 under the action of a power mechanism. In addition, a water storage bladder 33 is provided between each outer baffle 32 and the side wall of the outer barrel 11. The water storage bladder 33 is connected to multiple drain outlets 12 at corresponding positions. The water storage bladder 33 is also provided with through holes. That is, when the outer baffle 32 rotates away from the outer barrel 11, it causes the water storage bladder 33 to expand, which can draw seawater from the outer barrel 11 through the drain outlets 12. When the outer baffle 32 rotates closer to the outer barrel 11, it squeezes the water storage bladder 33, which allows the water in the water storage bladder 33 to be discharged from the through holes.

[0050] It should be noted that the up-and-down movement of the flow guide valve 31 is coordinated with the movement of the outer baffle 32. Specifically, when the outer baffle 32 rotates away from the outer tub 11, the flow guide valve 31 rises along the vertical center line of the outer tub 11 with the inner tub 2, so that the outer tub 11 is connected to the outside through the drain outlet 12, that is, the outer tub 11 is connected to the water storage bladder 33; when the outer baffle 32 rotates closer to the outer tub 11, the flow guide valve 31 descends along the vertical center line of the outer tub 11 with the inner tub 2, so that the passage between the outer tub 11 and the water storage bladder 33 is cut off.

[0051] In some embodiments, such as Figure 2 and Figure 3 As shown, the power component 4 includes: an output component 41, a cylindrical cam 42, and a first drive disk 43. The output component 41 is fixedly connected to the base 1. A first contour curve groove 421 is provided on the outer wall of the cylindrical cam 42, and the output shaft of the output component 41 is coaxially and fixedly connected to the cylindrical cam 42. The first drive disk 43 is an annular component, with a first rigid roller 431 fixed to its inner side. The first drive disk 43 has multiple first constraint through holes 432, each corresponding to a single straight rod. The first drive disk 43 is fitted onto the outer side of the cylindrical cam 42, and the first rigid roller 431 is movably disposed within the first contour curve groove 421. A straight rod is movably disposed within each first constraint through hole 432. The first drive disk 43 is fixed to the inner barrel 2.

[0052] The first rigid roller 431 can be a cylindrical rod, and the diameter of the first rigid roller 431 is smaller than the groove width of the first contour curve groove 421.

[0053] In some embodiments, the cylindrical cam 42 further includes an opening at one end and an internal cavity therein, and the output member 41 is disposed in the internal cavity of the cylindrical cam 42.

[0054] In some examples, the output component 41 can be a DC motor, and the cylindrical cam 42 can be a tubular structure, with the output component housed within the cylindrical cam 42. It is understood that the housing of the output component 41 should be fixed to the base 1, and the output shaft of the output component 41 should be connected to the cylindrical cam 42. Therefore, the power component 4 also includes a bracket 44, which is located below the interior of the cylindrical cam 42 and is fixedly connected to the chassis 13. The housing of the output component 41 is fixedly connected to the bracket 44, and the output shaft of the output component 41 is coaxially fixedly connected to the cylindrical cam 42. Simultaneously, to facilitate the rotation of the cylindrical cam 42 relative to the base 1, a support bearing, ball bearing, etc., can be provided between the bracket 44 and the cylindrical cam. For example, the lower part of the cylindrical cam 42 is a stepped tube, and the bracket 44 can be a stepped cylinder adapted to the cylindrical cam 42. Here, a stepped tube refers to a cylindrical cam 42 whose lower diameter is larger than its upper diameter, and a stepped cylinder refers to a cylinder whose upper diameter is smaller than its lower diameter.

[0055] A bearing is embedded between the cylindrical cam 42 and the bracket 44. Specifically, a bearing is provided between the first annular horizontal surface O1 between two pipes of different diameters of the cylindrical cam 42 and the second annular horizontal surface O2 between two cylindrical parts of different diameters of the bracket 44. The annular horizontal surface of the bearing intersects and is perpendicular to the vertical center line of the cylindrical cam 42 and the bracket 44. Both the first annular horizontal surface O1 and the second annular horizontal surface O2 are provided with annular grooves, and ball bearings are provided between the first annular horizontal surface O1 and the second annular horizontal surface O2.

[0056] In some embodiments, such as Figure 5 As shown, the first contour curve groove 421 includes: a first curve groove S1, a second curve groove S2, a third curve groove S3, and a fourth curve groove S4. The first curve groove S1 is an open groove located on the outer wall of the cylindrical cam and in a horizontal plane. The second curve groove S2 is an open groove located on the outer wall of the cylindrical cam and in a horizontal plane, and the second curve groove S2 is higher than the first curve groove S1. The third curve groove S3 is an open groove located on the outer wall of the cylindrical cam 42, and the first curve groove S1 communicates with the second curve groove S2 through the third curve groove S3. The fourth curve groove S4 is an open groove located on the outer wall of the cylindrical cam 42, and the first curve groove S1 communicates with the second curve groove S2 through the fourth curve groove S4; the third curve groove S3 and the fourth curve groove S4 are symmetrical about at least one vertical plane.

[0057] In some embodiments, the travel stroke of the first drive disk and the rotation angle of the cylindrical cam satisfy the following formula:

[0058]

[0059] in, The rise angle of the first contour curve groove 421, Let be the rotation angle of the cylindrical cam. The groove width of the first contour curve groove 421, 1 represents the travel distance of the first drive disk.

[0060] In some examples, the inner tub needs to rise relative to the outer tub and remain there for a period of time to ensure sufficient time for the inner tub to fill with seawater and floating debris, and the inner tub needs to descend relative to the outer tub and remain there for a period of time to ensure sufficient time for the inner tub to drain seawater. Therefore, the first profile curve groove 421 needs to include at least two profile curves that remain horizontal. Specifically, both the first curve groove S1 and the second curve groove S2 remain horizontal. That is, the rise angle of both the first curve groove S1 and the second curve groove S2 is 0°.

[0061] The third curved groove S3 and the fourth curved groove S4 are connecting grooves for the first curved groove S1 and the second curved groove S2. Therefore, the helix angle of the third curved groove S3 from the end of the first curved groove S1 to the front end of the second curved groove S2 is greater than zero, for example, it can be 30°, 45° or 60°, so that the rotation of the cylindrical cam 42 can drive the inner tub to rise. The helix angle of the third curved groove S3 from the end of the second curved groove S2 to the front end of the first curved groove S1 is less than zero, for example, it can be -30°, -45° or -60°, so that the rotation of the cylindrical cam 42 can drive the inner tub to fall.

[0062] In some embodiments, such as Figure 3 and Figure 5 As shown, a second contour curve groove 422 is also provided on the outer wall of the cylindrical cam 42. The second contour curve groove 422 is located below the first contour curve groove 421. The vertical distance h2 between the lowest end of the second contour curve groove 422 and the highest end of the second contour curve groove 422 is greater than the vertical distance h1 between the lowest end of the first contour curve groove 421 and the highest end of the first contour curve groove 421.

[0063] The second contour curve groove 422 includes a fifth curve groove S5 and a sixth curve groove S6. The fifth curve groove S5 is an open groove located on the outer wall of the cylindrical cam 42 and in a horizontal plane, and is located directly below the first curve groove S1. The arc length of the fifth curve groove S5 is the same as the arc length of the first curve groove S1. The sixth curve groove S6 is located on the outer wall of the cylindrical cam 42 and connects with both ends of the fifth curve groove S5 to form a closed loop. The shape of the sixth curve groove S6, when unfolded from the curved surface to the plane, is two symmetrical parabolic open grooves.

[0064] In some embodiments, the travel stroke of the second drive disk 44 and the rotation angle of the cylindrical cam 42 satisfy the following formula:

[0065]

[0066] in, The rise angle of the second contour curve groove 422, The rotation angle of the cylindrical cam 42. The groove width of the second contour curve groove 422, 2 represents the travel distance of the second drive disk.

[0067] like Figure 2 and Figure 3 As shown, the power component also includes a second drive disk 44. The second drive disk 44 is an annular component, with a second rigid roller fixed to its inner side. The second drive disk 44 has multiple second constraint through holes, each corresponding to one of the multiple straight rods. The second drive disk 44 is fitted onto the outer side of the cylindrical cam 42, and the second rigid roller is movably disposed within the second contour curve groove 422. A straight rod is movably disposed within each second constraint through hole. Both the first drive disk 43 and the second drive disk 44 are hinged to the linkage mechanism 5; the second drive disk 44 is configured to provide operating power to the linkage mechanism 5.

[0068] The second rigid roller can be a cylindrical rod, and the diameter of the second rigid roller is smaller than the width of the second profile curve groove.

[0069] In some examples, a second drive disk 44 is disposed within the second contour curve groove 422. As the cylindrical cam 42 rotates, the second drive disk 44 can be driven to rise or fall vertically. A linkage mechanism 5 is disposed between the first drive disk 43 and the second drive disk 44. As the relative distance between the first drive disk 43 and the second drive disk 44 decreases or increases, the linkage mechanism 5 can be driven to operate. That is, the distance between the lowest and highest points of the second contour curve groove is greater than the distance between the lowest and highest points of the first contour curve groove.

[0070] For example, the fifth segment of the second contour curve groove S5 is horizontal, that is, the rise angle of the fifth segment curve groove S5 is horizontal. The sixth segment of the second contour curve groove is zero; the curve shape of the sixth segment is two symmetrically arranged parabolas. It can be understood that, in order to reduce or increase the relative distance between the first drive disk 43 and the second drive disk 44, the rise angle of the sixth segment curve groove during the rising phase is zero. It can be greater than the rise angle at the corresponding position of the first contour curve groove. For example, the rise angle of the sixth curved groove during the rising phase. The helix angle is greater than that of the third curved groove S3 and the second curved groove S2. Furthermore, the rise angle of the sixth curved groove during its descent phase... The rise angle can be smaller than the rise angle at the corresponding position of the first contour curve groove. For example, the rise angle of the sixth curved groove during the descent phase. The helix angle is less than that of the fourth curved groove S4 and the second curved groove S2. Among them, the rise angle of the sixth curved groove during the rising phase... The angle can be 45°, 60°, or 75°; the rise angle of the sixth curved groove during the descent phase. It can be -45°, -60° or -75°.

[0071] In this embodiment, by adjusting the rise angles of the third curved groove S3, the fourth curved groove S4, and the sixth curved groove S6, the stroke of the first drive disc 43 and the second drive disc 44 can be controlled, thereby changing the rising height of the inner tank. This adjusts the volume of water entering the device in each working cycle and simultaneously controls the power of the output components to adapt to the type and quantity of floating debris in the actual environment. For example, when used in an environment with fewer floating particles, the motor power can be set to 15-20W, resulting in a lower rising height of the inner tank and increasing the amount of seawater entering the inner tank. When used in an environment with more floating particles, the motor power can be set to 45-60W, resulting in a higher rising height of the inner tank and reducing the amount of seawater entering the inner tank, thus improving working efficiency.

[0072] In some embodiments, such as Figure 2 As shown, the linkage mechanism 5 includes a first link 51, a second link 52, and a third link 53. The first link 51 is a straight rod, with one end hinged to the first drive disk 43. The second link 52 is a straight rod, with one end hinged to the second drive disk 44. The third link 53 is a straight rod, with one end hinged to the other ends of the first link 51 and the second link 52, and the other end hinged to the other end of the outer baffle 32.

[0073] In some examples, the lengths of the first link 51 and the second link 52 can be the same. When the relative distance between the first drive disk 43 and the second drive disk 44 decreases, the first link 51 and the second link 52 rotate around the hinge position. At the same time, the first link 51 and the second link 52 approach each other, that is, the first link 51 and the second link 52 move away from the cylindrical cam 42 from the hinge position. At the same time, the third link 53 drives the other end of the outer baffle 32 to move away from the cylindrical cam 42, causing the outer baffle 32 to rotate around one end. In other words, the outer baffle opens upward. Similarly, when the relative distance between the first drive disc 43 and the second drive disc 44 increases, the first link 51 and the second link 52 rotate around the hinge position, while the first link 51 and the second link 52 move away from each other. That is, the first link 51 and the second link 52 move towards the cylindrical cam 42 from the hinge position. At the same time, the third link 53 drives the other end of the outer baffle 32 to move towards the cylindrical cam 42, causing the outer baffle 32 to rotate around one end. In other words, the outer baffle retracts downward.

[0074] The process of the outer baffle opening upwards and closing downwards can move the floating objects near the entire device, and facilitate the flow of seawater into the inner barrel, so that the floating objects can flow into the inner barrel without the floating objects accumulating in the dead corner due to the flow of seawater.

[0075] It is understandable that, since the sixth curved trough is directly below the third curved trough S3 and the fourth curved trough S4, when the inner barrel rises, the corresponding outer baffle opens upwards, and the water storage bladder can absorb seawater in the inner barrel, thus completing the purpose of the inner barrel receiving floating objects and seawater, filtering floating objects, and discharging seawater; when the inner barrel descends, the corresponding outer baffle retracts downwards, at which time the guide valve 31 descends to block the drain outlet 12, and the seawater in the water storage bladder is discharged to the outside sea. This periodic action completes the collection of nearshore floating objects.

[0076] The filtered seawater is discharged through the water storage bladder, meaning the filtered seawater flows out from below the floating object, preventing the filtered seawater from pushing the floating object away from the entire device.

[0077] In some embodiments, the outer tub 11 comprises polyvinyl chloride or polyimide plastic, and the inner tub comprises polyvinyl chloride or polyimide plastic.

[0078] When the floating debris in the seawater consists of large particles (diameter greater than 2mm), the inner and outer barrels are made of polyvinyl chloride (PVC) to filter them through small holes at the bottom of the inner barrel that connect to the outer barrel. When the floating debris in the seawater includes microparticles, such as oily substances, the inner and outer barrels are made of polyimide plastic to facilitate the adsorption of oily substances in the seawater.

[0079] In some embodiments, the nearshore floating debris automatic collection device further includes a controller, which includes at least a microprocessor and a remote signal module, wherein the microprocessor is electrically connected to the remote signal module, and the remote signal module receives or uploads signals.

[0080] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0081] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. Offshore floating object automatic collection device based on cam link mechanism, characterized in that, The offshore floating object automatic collecting device comprises a base, an inner barrel, a drainage member, a power member and a controller. The base comprises an outer barrel with an opening upward, and a drainage port is arranged at the lower part of the outer barrel. The inner barrel is movably arranged in the outer barrel, and has a tendency to reciprocate along the axial direction upward. The lower part of the inner barrel is provided with a small hole in communication with the outer barrel. The drainage member is fixed to the outer barrel, and is in communication with the drainage port. The drainage member is configured to absorb the liquid in the outer barrel and discharge it to the outside of the offshore floating object automatic collecting device. The power member is fixedly connected with the base, and is also fixedly connected with the inner barrel and the drainage member. The power member is configured to drive the inner barrel to move in the vertical direction and drive the drainage member to act. The drainage member comprises a guide valve and an outer baffle. The guide valve is in plate structure and is fixedly connected with the inner barrel. The guide valve is configured to guide the drainage port to be open when the inner barrel rises, and to be closed when the inner barrel falls.

2. A cam link mechanism based offshore floater automatic collection apparatus according to claim 1, wherein, The outer baffle is in plate structure, one end of which is hingedly connected with the upper part of the outer wall of the outer barrel, and the other end is hingedly connected with a linkage mechanism. The linkage mechanism is hingedly connected with the power member, and the other end of the outer baffle rotates around the hinged position of the outer baffle and the outer barrel under the drive of the linkage mechanism, so that the other end of the outer baffle approaches or moves away from the outer barrel. A water storage bag is arranged between the outer baffle and the outer barrel, and is fixedly connected with the outer baffle and the outer barrel respectively. The water storage bag is in communication with the drainage port, and a through hole is further arranged on the water storage bag. The outer barrel comprises polyvinyl chloride or polyimide plastic, and the inner barrel comprises polyvinyl chloride or polyimide plastic.

3. A cam link mechanism based offshore floater automatic collection apparatus according to claim 2, wherein, The offshore floating object automatic collecting device further comprises a controller. The base further comprises a bottom disc arranged directly below the outer barrel, and the bottom disc is fixedly connected with the outer barrel through a plurality of straight rods. The power member comprises an output member, a cylindrical cam, a first drive disc, and a second drive disc. The output member is fixedly connected with the base. The cylindrical cam is coaxially fixedly connected with the output shaft of the output member. The first drive disc is in ring shape, and a first rigid roller is fixedly arranged on the inner side of the first drive disc. A plurality of first constraint through holes are arranged on the first drive disc, and each first constraint through hole is correspondingly arranged with a straight rod. The first drive disc is fixedly connected with the inner barrel. The first contour curve groove comprises a first curve groove and a second curve groove. The first curve groove is an open groove arranged on the outer side wall of the cylindrical cam and located in a horizontal plane. The second curve groove is arranged on the outer side wall of the cylindrical cam and located in a vertical plane. A second curved groove is arranged on the outer side wall of the cylindrical cam and is located in the opening groove in the horizontal plane, and the second curved groove is higher than the first curved groove; A third curved groove is arranged on the outer side wall of the cylindrical cam and is located in the opening groove, and the first curved groove is in communication with the second curved groove through the third curved groove; A fourth curved groove is arranged on the outer side wall of the cylindrical cam and is located in the opening groove, and the first curved groove is in communication with the fourth curved groove through the third curved groove; and the third curved groove and the fourth curved groove are symmetric about at least one vertical plane.

4. A cam link mechanism based offshore floater automatic collection apparatus according to claim 3, wherein, The outer side wall of the cylindrical cam is further provided with a second profile curved groove, and the second profile curved groove is located below the first curved groove as a whole, and the distance between the lowest end of the second profile curved groove and the highest end of the second profile curved groove in the vertical direction is greater than the distance between the lowest end of the first profile curved groove and the highest end of the first profile curved groove in the vertical direction; The second profile curved groove comprises: A fifth curved groove is arranged on the outer side wall of the cylindrical cam and is located in the opening groove in the horizontal plane, and the fifth curved groove is located directly below the first curved groove, and the arc length of the fifth curved groove is consistent with the arc length of the first curved groove S1; A sixth curved groove is arranged on the outer side wall of the cylindrical cam and is in communication with both ends of the fifth curved groove to form a closed loop, and the shape of the sixth curved groove when unfolded from a curved surface to a plane is two symmetric parabolic opening grooves; The power member further comprises: A second driving disc is an annular member, and a second rigid roller is fixed to the inner side of the second driving disc, a plurality of second constraint through holes are arranged on the second driving disc, and the plurality of second constraint through holes correspond one-to-one to the plurality of straight rods, the second driving disc is sleeved on the outer side of the cylindrical cam, and the second rigid roller is movably arranged in the second profile curved groove, and one straight rod is movably arranged in each second constraint through hole; The first driving disc and the second driving disc are both hinged to the connecting rod mechanism, and the second driving disc is configured to provide operating power to the connecting rod mechanism.

5. A cam link mechanism based offshore floater automatic collection apparatus according to claim 4, wherein, The connecting rod mechanism comprises: A first connecting rod is a straight rod structure, and one end of the first connecting rod is hinged to the first driving disc; A second connecting rod is a straight rod structure, and one end of the second connecting rod is hinged to the second driving disc; A third connecting rod is a straight rod structure, one end of the third connecting rod is hinged to the other end of the first connecting rod and the other end of the second connecting rod, and the other end of the third connecting rod is hinged to the other end of the outer baffle.

6. A cam link mechanism based offshore floater automatic collection apparatus according to any one of claims 2 to 5, wherein, The cylindrical cam further comprises an open end and an internal cavity, and the output member is arranged in the internal cavity of the cylindrical cam.

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