Offshore buoy on-board cleaning device and method

Abstract

The invention provides a marine buoy on-board cleaning device and method, belongs to the field of ocean engineering equipment and marine navigation marks, and is used for cleaning attached marine organisms and dirt near a buoy waterline and underwater parts and collecting sewage and dirt. Comprising a base, a splash-proof part, a fitting part and a washing part, the base comprises an outer ring base, an inner ring base and a bottom plate, and a filter screen is further arranged at the top of the base. The splash-proof part comprises a top frame and sliding doors, and the multiple sliding doors are arranged between the outer ring base and the top frame in a sliding mode; the attaching part is arranged on the inner ring base and comprises a shrink film and a retracting and stretching mechanism, the outer circle of the shrink film is fixed to the upper side of the filter screen area, the inner circle side of the shrink film is connected to the retracting and stretching mechanism, and the shrink film is attached to the buoy shell when the retracting and stretching mechanism acts; the flushing part comprises a spray gun for flushing the surface of the buoy. The device is matched with the method to achieve adaptation and cleaning of the buoy shell, waste water and waste are separated, a coating is not damaged, the buoy cleaning convenience and efficiency are improved, and environmental protection is further emphasized.

Description

Technical Field

[0001] The invention belongs to the field of marine engineering equipment and marine navigation marks, and in particular relates to a cleaning device and method for marine buoys. Background Art

[0002] Marine buoys / navigation marks are signs that indicate the direction, boundaries and obstructions of a waterway, and help ships navigate safely, economically and conveniently. They include visual beacons (such as light buoys), acoustic beacons and radio beacons, which transmit navigation information through lights, colors, shapes, etc., and are widely used in major maritime traffic routes.

[0003] The area near the waterline and underwater parts are prone to breeding marine organisms and hard dirt, which may destroy the protective coating on the surface, leading to accelerated corrosion, posing a threat to its stability and affecting the structural integrity and service life of the beacon. Regular cleaning is required to maintain the safety and effectiveness of the beacon.

[0004] In the prior art, when dealing with marine organisms that breed near the waterline of navigation marks and underwater parts, they are usually hoisted onto the operating ship and then washed with a high-pressure water gun. This process will produce a large amount of sewage and biological residues, and direct discharge will pollute the marine environment. Therefore, during the cleaning process, effective sewage and residue collection measures must be taken to ensure that the cleaning operation is both efficient and environmentally friendly, and avoid adverse effects on the ship's environment and the marine environment. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a cleaning device and method for an offshore buoy ship, which is used to solve the problem of how to effectively collect sewage and residual dirt when cleaning marine organisms that breed near the waterline and underwater part of the navigation mark in the prior art.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a cleaning device and method for an offshore buoy vessel.

[0007] Among them, a cleaning device for a marine buoy on board is arranged around a navigation mark well on board, and comprises: Base, splash guard, fit and flush; The base comprises an outer ring base, an inner ring base and a bottom plate, wherein the bottom plate is connected to the bottom between the outer ring base and the inner ring base, and a filter screen is also arranged at the top between the outer ring base and the inner ring base. When working, the outer ring base and the inner ring base are concentric with the navigation well; The splash-proof part comprises a top frame and a sliding door, wherein the top frame is arranged directly above the outer ring base, and a plurality of sliding doors are slidably arranged between the outer ring base and the top frame; The fitting part is arranged on the inner ring base, and the fitting part includes a shrink film and a retracting mechanism. The shrink film is annular, and the outer circle of the shrink film is fixed on the upper side of the filter area. The inner circle of the shrink film is connected to the retracting mechanism. When the retracting mechanism is in action, the inner circle of the shrink film is attached to the buoy shell. The flushing part comprises a spray gun for flushing the surface of the buoy.

[0008] Optionally, the shrink film comprises an inner elastic ring on the inner circle side, an outer elastic ring on the outer circle side and a connecting elastic film; The connecting elastic membrane is connected between the inner elastic ring and the outer elastic ring; The outer elastic ring is fixed on the upper side of the filter area, and the inner elastic ring is fixed on the retracting rod of the retracting mechanism.

[0009] Optionally, the retracting mechanism is provided in multiple groups along the inner ring base, and the retracting mechanism comprises a first rod, a retracting rod and a retracting power source; The first rod points to the center of the navigation well along the radius of the inner ring base, the retracting rod is rotatably connected to the end of the first rod, and the rotation angle is controlled by the retracting power source, and the inner ring elastic ring is fixedly connected to the other end of the retracting rod.

[0010] Optionally, the retracting mechanism is provided in multiple groups along the inner ring base, and the retracting mechanism comprises a first rod, a retracting rod, a first elastic member, a second elastic member and a support seat; The first rod points to the center of the navigation well along the radius of the inner ring base, the retracting rod is rotatably connected to the end of the first rod, the inner ring elastic ring is fixedly connected to the other end of the retracting rod, the support seat is fixedly arranged on the inner ring base, and the support seat slidably supports the retracting rod; The first rod is slidably matched with the inner ring base, the first elastic member is arranged between the inner ring base and the end of the first rod, and the second elastic member is arranged between the inner ring base and the retracting rod.

[0011] Optionally, the retracting rod comprises a rotating connection end and a retracting end, the rotating connection end is rotatably connected to the first rod, and the retracting end is fixedly connected to the inner elastic ring.

[0012] Optionally, the rotating connection end is circular, and a friction layer is provided on the circular periphery of the rotating connection end.

[0013] Optionally, the retracted and expanded end is provided with a hook-shaped limiting area, a limiting protrusion is provided at the opening of the hook-shaped limiting area, a gap is left between the hook-shaped limiting area and the limiting protrusion, the inner ring elastic ring is clamped in the hook-shaped limiting area, and the connecting elastic membrane connecting the inner ring elastic ring is led out from the gap.

[0014] Optionally, a through hole is provided at the end of the support seat extending along the outer ring base, and the outer ring elastic ring is clamped in the through hole.

[0015] Optionally, the flushing portion further comprises a support rod, a sliding seat and a rotating sleeve; The two ends of the support rod are respectively connected between the outer ring base and the top frame in a circular sliding manner, the sliding seat is slidably connected to the support rod, the rotating sleeve is connected to the sliding seat through a ball joint, and the spray gun is fixedly installed in the rotating sleeve.

[0016] Among them, a method for cleaning an offshore buoy on board, using the above-mentioned cleaning device for an offshore buoy on board, comprises the following steps: The cleaning device on the offshore buoy is moved to the navigation well and is concentric with the navigation well, and the buoy is lifted from the sea water and moved to above the navigation well and the cleaning device; The buoy is slowly lowered. When the bottom of the buoy contacts the retracting rod, the bottom of the buoy generates pressure on the retracting rod, pushing the first rod to overcome the elastic force of the elastic member and retract until the rotating connection end of the retracting rod contacts the buoy. In the process of continuing to lower the buoy, the retracting rod will flip toward the buoy under the action of friction, and at the same time, the other end of the retracting rod is attached to the buoy, and the inner elastic ring on the inner circle side of the shrink film is attached to the buoy; After the buoy is completely placed in the navigation well, the surface of the buoy is flushed with a spray gun. Water and debris fall down, and the debris is trapped on the upper side of the filter. The water enters the base on the lower side of the filter. A water pipe is set on the base to lead out the flushing water. The flushing water is filtered and then pumped back into the spray gun.

[0017] As described above, the cleaning device and method for an offshore buoy vessel of the present invention have at least the following beneficial effects: This device achieves flexible adaptation and efficient cleaning of the buoy shell by designing the base, splash-proof part, fitting part and flushing part. Among them, the shrink film of the fitting part cooperates with the retracting mechanism to fit tightly to the bottom of the buoy shell of different sizes, effectively collecting the wastewater and waste residue generated during the cleaning process, and avoiding environmental pollution. At the same time, the filter net design in the base can perform preliminary separation of wastewater and waste residue, thereby improving the efficiency of wastewater treatment. Overall, this device not only improves the convenience and efficiency of buoy cleaning, but also pays attention to environmental protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the overall working state of the present invention.

[0019] Figure 2 The diagram shows a cleaning device without a buoy.

[0020] Figure 3 Shown is a schematic diagram of the framework of the present invention.

[0021] Figure 4 A partial cross-sectional schematic diagram of the base of the present invention is shown.

[0022] Figure 5 Shown is a schematic diagram of the retracting and unfolding mechanism on the base of the present invention.

[0023] Figure 6 Shown as the present invention Figure 5 Schematic diagram of the partial enlargement of point A in the middle.

[0024] Figure 7 Shown is a schematic diagram of the cleaning portion of the present invention.

[0025] Figure 8 The diagram shows the initial state of the buoy being hoisted into the cleaning section.

[0026] Fig. 9 It shows a schematic diagram of the state of the buoy being hoisted into the cleaning section.

[0027] Fig.10 The diagram shows the state of the buoy after it is completely hoisted into the cleaning section.

[0028] Fig.11 Shown is a simplified diagram of the working scenario of the present invention.

[0029] Fig.12 Shown is a schematic cross-sectional view of the filter of the present invention.

[0030] Fig.13 Shown is a schematic diagram of the interior of the filter of the present invention.

[0031] Fig.14 Shown is a schematic diagram of the cooperation between the flat mesh screen and the main shaft of the present invention.

[0032] Wherein: outer ring base 1, inner ring base 2, bottom plate 3, filter screen 4, top frame 5, sliding door 6, shrink film 7, inner ring elastic ring 70, outer ring elastic ring 71, connecting elastic film 72, retracting mechanism 8, first rod 80, retracting rod 81, rotating connection end 811, friction layer 8111, retracting end 812, hook-shaped limiting area 8121, limiting protrusion 8122, gap 8123, first elastic member 82, second elastic member 83, support seat 84, through hole 84 1. Spray gun 85, support rod 86, sliding seat 87, rotating sleeve 88, beacon well 9, water inlet 921, water outlet 922, slag outlet 923, main shaft 924, groove structure 9241, lock head 9240, flat mesh screen 925, frame 9251, protruding structure 92511, filter surface 9252, arc mesh screen 926, power source 927, conductivity sensor 928, reversing valve 929, first output port 9291, second output port 9292. DETAILED DESCRIPTION

[0033] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0034] See also Figures 1 to 14 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0035] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0036] See also Figure 1-Figure 12 , the present invention provides an embodiment of a cleaning device and method for an offshore buoy vessel.

[0037] The waterline and underwater parts of navigation marks (buoys) are often subject to the growth of marine organisms, including algae and shellfish. These organisms tend to adhere closely to the surface of the navigation mark, and gradually accumulate over time to form a thick biological cover. This biological cover is composed not only of the organisms themselves, but also of various organic substances they secrete.

[0038] The formation of this biolayer poses a significant threat to the coating on the surface of the navigation mark. The chemical components in the organisms and their secretions may be corrosive and directly act on the protective coating of the navigation mark, causing defects such as damage and peeling of the coating. Once these defects appear in the coating, the seawater that was originally effectively isolated will directly contact the exposed steel navigation mark structure.

[0039] When steel navigation marks lose their coating protection, direct contact with seawater will significantly accelerate their corrosion process. The salt, dissolved oxygen and other corrosive substances contained in seawater will more easily corrode the metal of the navigation mark, causing a series of problems such as rust and perforation, which seriously affect the durability, reliability and service life of the navigation mark.

[0040] Therefore, it is particularly important to carry out regular cleaning work to address the marine organisms that breed near the waterline and underwater parts of the navigation mark and their potential corrosion threats to the coating and steel structure. In current operational practices, the common method is to first hoist the navigation mark onto the operating ship, and then firmly place the navigation mark through the navigation mark well on the deck to ensure stability and safety during operation. Then, use a high-pressure water gun to thoroughly clean it to effectively remove the biological layer and its secretions attached to the surface of the navigation mark.

[0041] However, considering that seawater contains high concentrations of salt, which has a strong corrosive effect on metals, the hydraulic system equipped with the high-pressure water gun cannot directly use seawater as a water source. In order to avoid equipment damage and increased corrosion caused by salt, only fresh water loaded on board can be used for cleaning during the operation. But it is worth noting that the fresh water resources carried by the operation ship each time it goes out to sea are very limited, while the number of navigation marks that need to be cleaned may be considerable, which puts forward high requirements for the rational allocation and efficient use of fresh water resources.

[0042] In addition, sewage and biological residues generated during the cleaning process cannot be discharged directly into the marine environment to avoid secondary pollution of the marine ecosystem. Therefore, a complete sewage recycling system must be established to recycle the fresh water after cleaning and use it for subsequent cleaning work after proper treatment. This not only helps to save fresh water resources, but also effectively avoids negative impacts on the ship and the marine environment.

[0043] In view of the above situation, the present invention provides a marine buoy shipboard cleaning device, which is arranged around the shipboard navigation mark well 91. The navigation mark well is arranged on the deck of the ship and has a socket matching the tail pipe of the buoy, which is used to receive and fix the buoy. The tail pipe at the bottom of the navigation mark can be inserted into the navigation mark well to ensure the stability of the buoy during the cleaning process. Figure 1 The diameter of the tail pipe of the buoy is smaller than the buoy body. During operation, the navigation mark is lifted from the sea by a ship crane, moved to the deck of the ship, and then lowered to allow the tail pipe at the bottom of the navigation mark to be inserted into the navigation mark well.

[0044] The cleaning device provided by the present invention comprises: a base, a splash-proof part, a fitting part and a flushing part; Combination Figure 3 and Fig.12 The base includes an outer ring base 1, an inner ring base 2 and a bottom plate 3. The bottom plate 3 is connected to the bottom between the outer ring base 1 and the inner ring base 2 to form a flushing water receiving area. A filter screen 4 is also provided on the top between the outer ring base 1 and the inner ring base 2 to separate the regenerated biological residues and flushing water. Figure 3 The filter 4 is not shown in the figure. The setting method of the filter 4 can be found in Figure 1 , Figure 2 and Figure 4The filter screen 4 can be tilted, with the side close to the outer ring base 1 lower than the side close to the inner ring base 2. During high-pressure flushing, large biological debris such as shellfish that fall off the navigation mark fall onto the filter screen 4, and the flushing water passes through the filter screen and enters the flushing water receiving area at the lower layer. The flushing water receiving area at the lower layer of the filter screen can be provided with a water pipe to lead out the flushing water for subsequent filtration, etc. The water pipe setting method can be referred to Figure 5 At the same time, the two sides of the filter screen 4 can be connected to the outer ring base 1 and the inner ring base 2 respectively through a sliding structure, so that the filter screen 4 can rotate around the inner ring base 2, which is convenient for collecting biological residues on the filter screen in subsequent work after the navigation mark is cleaned.

[0045] When working, the outer ring base 1 and the inner ring base 2 are concentric with the navigation mark well 91. The device can be set to be movable, for example, rollers are set at the bottom to push it to the navigation mark well; the device can also be moved to the navigation mark well by a crane on a ship. After the device is in place, the navigation mark is lifted from the water and placed in the navigation mark well from top to bottom. After the placement is completed, the device surrounds the navigation mark; For splash guard, please refer to Figure 1 and Figure 2 , including a top frame 5 and a sliding door 6, the top frame 5 is arranged directly above the outer ring base 1, and a plurality of sliding doors 6 are slidably arranged between the outer ring base 1 and the top frame 5, and the plurality of sliding doors 6 can completely surround the navigation mark to prevent the splashing of flushing water, and can also expose the navigation mark in any angle area for high-pressure flushing; The laminating part is arranged on the inner ring base 2, and the laminating part comprises a shrink film 7 and a retracting mechanism 8. The shrink film 7 is annular, and can be referred to Figure 2 and Figure 4 , Figure 5 ,but Figure 4 and Figure 5 In the figure, only a part of the annular segment of the shrink film 7 is shown, the outer circle of the shrink film 7 is fixed on the upper side of the filter area, and the inner circle of the shrink film 7 is connected to the retracting mechanism 8. When the retracting mechanism 8 is in operation, the inner circle of the shrink film 7 is attached to the tail pipe of the buoy 93 shell. Figure 8-Figure 10 When cleaning, the retracting mechanism 8 operates to stick the inner circle of the shrink film 7 to the shell of the buoy 93, and the outer circle of the shrink film 7 is fixed on the upper side of the filter area, and the inner circle of the shrink film 7 is higher than the outer circle. When the flushing water is poured onto the shrink film 7, it flows along the inclined surface of the shrink film 7 to the filter 4, and then flows into the receiving area at the bottom of the filter; the flushing part includes a spray gun 85, and the high-pressure water of the spray gun 85 flushes the surface of the buoy 93.

[0046] In the above embodiments, the design of the cleaning device brings about significant beneficial effects. First, during the navigation mark maintenance process, the device can effectively collect and process waste water and waste residues generated when cleaning the navigation mark, such as biological residues such as shellfish. Through the close cooperation between the shrink film 7 and the filter screen 4, the waste water and waste residues are intercepted and filtered, and these pollutants are prevented from being directly discharged into the deck or the ocean. Secondly, the device also takes into account the recycling of resources. By collecting the waste water used for cleaning, the fresh water originally used for cleaning can be recycled and reused, which significantly reduces the consumption of fresh water resources when the operating ship goes out, improves the utilization efficiency of water resources, and improves the efficiency and sustainability of navigation mark maintenance operations. Each time the ship goes out for operation, it can clean more navigation marks, extend the operation cycle, and reduce the need for frequent round trips to replenish fresh water, thereby reducing maintenance costs and enhancing the continuity and economy of operations. For this example, please refer to Figure 4-Figure 6 The complete shrink film 7 is annular, in order to facilitate the observation of the cross section, Figure 4-Figure 6 Only one section of the annular shrink film 7 is shown, and the shrink film 7 includes an inner elastic ring 70 on the inner circle side, an outer elastic ring 71 on the outer circle side, and a connecting elastic film 72; The connecting elastic membrane 72 is connected between the inner elastic ring 70 and the outer elastic ring 71; The outer elastic ring 71 is fixed on the upper side of the filter area, and the inner elastic ring 70 is fixed on the retracting rod 81 of the retracting mechanism 8 .

[0047] The inner elastic ring 70 and the outer elastic ring 71 are both rubber rings with elastic contraction ability. The inner elastic ring 70 and the outer elastic ring 71 have different annular diameters. The connecting elastic membrane 72 is annular sheet, and the outer circle side is fixedly connected to the outer elastic ring 71, and the inner circle side is fixedly connected to the inner elastic ring 70. When the annular diameter of the inner elastic ring 70 changes, the connecting elastic membrane 72 can be elastically contracted and deformed accordingly, so that there will be no gap between the inner elastic ring 70 and the outer elastic ring 71, so as to maintain the effect of receiving flushing water. The connecting elastic membrane 72 of the device is arranged on the outer periphery of the navigation mark well on the ship. Under the action of the contraction mechanism 8, the inner elastic ring 70 can pull the connecting elastic membrane 72 to be close to the tail pipe at the bottom of the marine buoy (navigation mark), automatically adapt to the size of the buoy tail pipe, and receive flushing water during the cleaning process, so that the fresh water originally used for cleaning can be recycled and reused, which significantly reduces the consumption of fresh water resources when the working ship goes out, and avoids directly discharging the flushing water into the deck or the ocean, causing pollution to the ship or the marine environment.

[0048] For this example, please refer to Figure 4-Figure 6The retracting and stretching mechanism 8 is provided with multiple groups along the inner ring base 2. The more groups there are, the better the shrink film 7 fits the buoy tail tube. Since the outer ring elastic ring 71 is a rubber ring with elastic shrinkage ability, the shrinkage ability of the circumference is balanced, and the buoy tail tube also has a circular cross-section, only a small number of retracting and stretching mechanisms 8 are provided, and the shrink film 7 can also ensure the fit effect of the buoy tail tube.

[0049] Specifically, the retracting mechanism 8 includes a first rod 80, a retracting rod 81 and a retracting power source; The first rod 80 points to the center of the navigation well 91 along the radius of the inner ring base 2, the retracting rod 81 is rotatably connected to the end of the first rod 80, and the rotation angle is controlled by the retracting power source, and the inner ring elastic ring 70 is fixedly connected to the other end of the retracting rod 81. Figure 6 , Figure 9-10 When the retracting and stretching power source controls the retracting and stretching rod 81 to rotate toward the center of the navigation well 91, that is, the tail tube of the buoy, the inner ring elastic ring 70 will be pulled to stick to the tail tube of the buoy, and then the connecting elastic membrane 72 will be pulled to expand, and the connecting elastic membrane 72 is in an inclined state, which is used to receive the cleaning water and guide the cleaning water to the filter. When the retracting and stretching power source controls the retracting and stretching rod 81 to rotate in the opposite direction to the center of the navigation well 91, that is, the tail tube of the buoy, the elastic force of the inner ring elastic ring 70 and the connecting elastic membrane 72 causes the annular shrink film 7 to restore its original shape.

[0050] Furthermore, if Figure 5 and Figure 6 As shown, a plurality of groups of the retracting mechanism 8 are arranged along the inner ring base 2, and the retracting mechanism 8 includes a first rod 80, a retracting rod 81, a first elastic member 82, a second elastic member 83 and a support seat 84; The first rod 80 points to the center of the navigation well 91 along the radius of the inner ring base 2, the retracting rod 81 is rotatably connected to the end of the first rod 80, the inner ring elastic ring 70 is fixedly connected to the other end of the retracting rod 81, and the support seat 84 is fixedly arranged on the inner ring base 2, and the support seat 84 slidably supports the retracting rod 81; The first rod 80 is slidably matched with the inner ring base 2, the first elastic member 82 is arranged between the inner ring base 2 and the end of the first rod 80, and a spring can be used. The second elastic member 83 is arranged between the inner ring base 2 and the retracting rod 81, and an elastic rope or a spring can be used.

[0051] The retracting rod 81 includes a rotating connection end 811 and a retracting end 812 . The rotating connection end 811 is rotatably connected to the first rod 80 , and the retracting end 812 is fixedly connected to the inner elastic ring 70 .

[0052] The rotating connection end 811 is circular, and a friction layer 8111 is provided on the circular periphery of the rotating connection end 811, and a rubber cushion layer may be used.

[0053] The retracted end 812 is provided with a hook-shaped limiting area 8121, and a limiting protrusion 8122 is provided at the opening of the hook-shaped limiting area 8121. A gap 8123 is left between the hook-shaped limiting area 8121 and the limiting protrusion 8122. The inner ring elastic ring 70 is stuck in the hook-shaped limiting area 8121, and the connecting elastic membrane 72 connecting the inner ring elastic ring 70 is led out from the gap 8123.

[0054] A through hole 841 is provided at the end of the support seat 84 extending along the outer ring base 1 , and the outer ring elastic ring 71 is clamped in the through hole 841 .

[0055] The hook-shaped limiting area 8121 and the through hole 841 can facilitate the insertion or removal of the inner elastic ring 70 and the outer elastic ring 71, so that the entire shrink film 7 is easy to replace.

[0056] The cleaning device in the above embodiment is combined with the cleaning method, and its main working principle is as follows, including the following steps: Drive the operating boat to the vicinity of the target buoy (navigation mark) to be cleaned; The cleaning device is moved to the navigation well 91 and is concentric with the navigation well 91. Initially, the retracting mechanism 8 and the shrink film 7 are in the following position. Figure 2 In the state shown, the ends of the retracting rods 81 of the plurality of retracting mechanisms 8 are inserted into the range of the navigation well.

[0057] Then the buoy 93 is lifted from the sea water and moved above the navigation well 91 and the cleaning device; like Figure 8 As shown, the buoy 93 is slowly lowered. When the tail tube at the bottom of the buoy 93 contacts the upper side of the retracting rod 81, the tail tube at the bottom of the buoy 93 generates pressure on the retracting rod 81. The retracting rod 81 pushes the first rod 80 to overcome the elastic force of the elastic member and retracts. At the same time, the retracting rod 81 itself slides along the support seat 84 until it retracts to the point where the rotating connection end 811 of the retracting rod 81 contacts the surface of the tail tube of the buoy 93. Fig. 9 As shown, in the process of lowering the buoy 93, under the action of the friction force of the friction layer 8111, the retracting rod 81 will turn toward the buoy 93. Finally, the other ends of the multiple retracting rods 81 are simultaneously attached to the buoy 93, and the inner ring elastic ring 70 of the inner circle side of the shrink film 7 is attached to the buoy 93, as shown in FIG. Fig.10 In order to increase the fitting effect, the initial diameter of the inner elastic ring 70 can be designed to match the tail tube of the navigation mark, that is, before the retracting rod 81 drives the inner elastic ring 70 to fit the navigation mark, the inner elastic ring 70 is in a stretched elastic deformation state, and when the retracting rod 81 drives the inner elastic ring 70 to fit the navigation mark, the inner elastic ring 70 returns to a state of no elasticity and low elasticity; After the buoy 93 is completely placed in the navigation well 91, the surface of the buoy 93 is washed with a spray gun 85. Figure 1As shown, water and biological residues and debris fall down, the residues are trapped on the upper side of the filter, and the water enters the base on the lower side of the filter. A water pipe is set on the base to lead out flushing water, and the flushing water is pumped back into the spray gun 85 after being filtered.

[0058] The above cleaning device and method have shown outstanding beneficial effects. In the operation process, the device can automatically adapt to and fit the tail tubes of buoys of different specifications without manual intervention, which greatly improves the convenience and efficiency of operation. Through the ingenious design of the retracting mechanism and shrink film, the automatic fitting and firm fixation of the buoy during the lowering process are achieved, ensuring the smooth progress of the cleaning work.

[0059] More importantly, the device can effectively collect and separate wastewater and waste residue generated during the cleaning process, preventing these pollutants from being directly discharged into the deck or the ocean, effectively protecting the ship and the marine environment. At the same time, the filtered wastewater can be recycled, significantly reducing the consumption of fresh water resources, extending the sea operation cycle of the operating ship, and enhancing the sustainability of the operation.

[0060] In summary, the cleaning device and method thereof not only improve the operating efficiency, but also take into account environmental protection and resource conservation, providing a more efficient and environmentally friendly solution for the maintenance and cleaning of navigation marks.

[0061] In this embodiment, the flushing part of the cleaning device on the marine buoy 93 is as follows: Figure 7 As shown, it also includes a support rod 86, a sliding seat 87 and a rotating sleeve 88; The two ends of the bracket rod 86 are respectively connected in a circular sliding manner between the outer ring base 1 and the top frame 5. The sliding seat 87 is slidably connected to the bracket rod 86 and can be slid to adjust the height. It can be locked after sliding to a specific position. The rotating sleeve 88 is connected to the sliding seat 87 through a ball joint, and the spray gun 85 is fixedly installed in the rotating sleeve 88.

[0062] The design of the flushing part of the offshore buoy cleaning device in this embodiment significantly improves the efficiency and humanization of the cleaning operation. The buoy is large in size and the water pressure of the spray gun is high. By introducing the combined structure of the support rod, the sliding seat and the rotating sleeve, it not only ensures that the spray gun can be flexibly adjusted to any desired position and angle, and accurately aimed at the stubborn stains and marine life on the surface of the navigation mark, but also greatly reduces the physical burden of the operator. The height adjustment and locking function of the sliding seat further enhance the flexibility and stability of the cleaning operation, making the flushing process more efficient and orderly. While ensuring the flushing effect, this design replaces part of the manual operation with mechanical assistance, effectively reducing labor intensity and improving operation safety. In addition, the clever use of the rotating sleeve and the ball joint enables the spray gun to easily cope with the complex and changeable shapes of navigation marks, ensuring that there are no dead angles in the cleaning, and comprehensively improving the cleaning efficiency and quality.

[0063] In this embodiment, the cleaning wastewater collected from the cleaning device base flows into the filter device through the water pipe, and then passes through the pressure pump to re-enter the high-pressure spray gun. Figure 12-14 The filtering device includes: a shell and a filter group, the shell includes two upper and lower cavity spaces, the filter group includes a flat mesh screen 925 and a curved mesh screen 926; the upper cavity of the shell includes a water inlet 921, a filter area and a slag outlet 923 connected in sequence, the water inlet 921 is higher than the slag outlet 923, the filter area is a cylindrical space, and the curved mesh screen 926 is arranged between the filter area and the lower cavity of the shell; a plurality of flat mesh screens 925 are formed into a circular array on the main shaft 924 as paddles and are installed in the filter area, the edge of the flat mesh screen 925 matches the curved mesh screen 926, and during the rotation of the paddles, the edge of the flat mesh screen 925 just passes through the curved surface of the curved mesh screen 926; a water outlet 922 is also arranged on the lower cavity of the shell.

[0064] In the above embodiment, the working process is mainly as follows: the marine organisms on the surface of the buoy include sea snails, barnacles and other crustaceans and plankton, etc. During flushing, the buoy is hoisted onto the operating ship and flushed with a high-pressure water gun. A receiving device is set at the bottom of the buoy placement area to collect flushing wastewater and waste residue (marine biological debris). After the wastewater and waste residue are initially separated by the receiving device, the original cleaning water is obtained.

[0065] The cleaning water is passed through the water inlet 921 into the above-mentioned filter device. When the cleaning water flows through the filter area, the water and smaller dust leak into the lower cavity space of the shell from the arc mesh screen 926, and the larger impurities are trapped in the filter area by the arc mesh screen 926. The paddle formed by the flat mesh screen 925 can be rotated by using the water drop or external power, so that the impurities trapped in the filter area can be discharged from the slag outlet 923. In addition to pushing out the impurities in the filter area, the rotation of the paddle can also prevent the arc mesh screen 926 from being blocked, thereby ensuring the filtering efficiency. The filtered flushing water flows out from the water outlet 922, and then passes through a pressure pump or other pressure circuit, and can be transported to the high-pressure water gun again for flushing.

[0066] The filter device has achieved efficient cleaning water filtration through ingenious design. When the cleaning water flows through the curved mesh screen, it can effectively separate larger dust and impurities, ensuring that the flushing water at the outlet meets the water quality requirements of the pressurizing equipment when pressurized again. The rotation of the paddles formed by the flat mesh screen can not only discharge impurities from the slag outlet, but also effectively prevent the curved mesh screen from clogging, clean the surface of the curved mesh screen, and improve the filtration efficiency. The filtered flushing water can be pressurized and reused to achieve the recycling of resources. The device has a compact structure and is easy to operate, which helps to improve work efficiency and environmental benefits. It can not only ensure the recycling of fresh water resources, but also avoid the pollution of the marine environment and the ship environment by flushing water.

[0067] Furthermore, a conductivity sensor 928 for detecting the salt content of the cleaning water is provided at the water outlet 922. The conductivity sensor is a device for measuring the conductivity of a liquid or a solution, which can accurately reflect the ion concentration in the liquid, thereby reflecting the salt content of the cleaning water. The filtering device also includes a reversing valve 929, which includes an input port, a first output port 9291 and a second output port 9292. The connection state between the input port and the first output port 9291 or the second output port 9292 can be switched, the input port is connected to the water outlet 922, the first output port 9291 is connected to the pressurized circuit, and the second output port 9292 is connected to the water reservoir.

[0068] Although the flushing water is originally fresh water, the marine life at the bottom and on the surface of the buoy has long existed in the seawater, which will be accompanied by salt water, causing the recovered flushing water to also contain salt. However, the equipment for pressurizing the flushing water cannot work in an environment with too high salt concentration, so the salt concentration of the recovered flushing water must be monitored. When the salt concentration of the recovered flushing water exceeds the set value, the reversing valve 929 needs to switch the output path and guide the flushing water into the reservoir. It can only be used after the salt concentration is reduced by other means; but if the salt concentration of the recovered flushing water does not exceed the set value, the reversing valve 929 switches the output path to the pressurization circuit, and after pressurization by a pump or other device, it is re-delivered to the high-pressure spray gun.

[0069] By introducing a salt concentration monitoring system and linking the reversing valve 929, the system effectively protects the high-pressure equipment for pressurizing the flushing water. When the salt concentration in the recovered flushing water exceeds the standard, the system can automatically switch the path to avoid corrosion of the pressurizing equipment by the high-salt solution, thus extending the service life of the equipment. At the same time, this mechanism ensures that only flushing water that meets the standards can enter the pressurization circuit and be reused for high-pressure flushing work, which not only ensures work efficiency, but also maintains the stable operation of the equipment and reduces the maintenance and replacement costs caused by equipment damage.

[0070] In this embodiment, the main shaft 924 is driven to rotate by a power source 927, and the power source can be a motor. The flat mesh screen 925 includes a frame 9251 and a filter surface 9252, and the filter surface 9252 is woven by criss-crossing wires, and the two ends of the wires are fixed to the frame 9251. The frame 9251 is installed on one side of the main shaft 924 and is provided with a protruding structure 92511 perpendicular to the filter surface 9252; the main shaft 924 is provided with a groove structure 9241 matching the frame 9251 and the protruding structure 92511, and the frame 9251 is slidably installed on the main shaft 924 body along the groove structure 9241 from the main shaft 924. The main shaft 924 includes a lock head 9240 and a body, and the groove structure 9241 is provided in the body section. The lock head 9240 and the body are connected by a threaded structure, and the lock head 9240 presses the frame 9251. The protruding structure 92511 and the groove structure 9241 can be a "T" shaped section.

[0071] The above embodiment significantly improves the flexibility and efficiency of equipment maintenance by designing a convenient disassembly and assembly structure of the main shaft 924 and the flat mesh screen 925. When the filter screen is blocked or damaged due to long-term use, the operator can easily realize the rapid disassembly and replacement of any flat mesh screen through the protruding structure 92511 and the groove structure 9241 of the "T"-shaped cross-section, without the need for a complicated disassembly process, effectively shortening the maintenance time and ensuring the continuous and stable operation of the equipment. The lock head 9240 can ensure the firmness of the installation. This design not only simplifies maintenance work, but also reduces the risk of cleaning interruption and return of the work vessel due to filter screen problems, thereby improving work efficiency.

[0072] Furthermore, the filter surface 9252 of the flat mesh screen 925 and / or the curved mesh screen 926 is woven from crisscrossed threads. The threads are non-metallic materials, such as high-strength, wear-resistant nylon threads, polyester threads or other synthetic fiber materials. These materials not only have good corrosion resistance and chemical stability, and can maintain stable performance for a long time in harsh environments, but also have high strength and toughness, ensuring that the filter screen is not easily damaged during rotation, salt solution immersion and flushing.

[0073] In summary, the present invention effectively overcomes various shortcomings in the prior art, can produce beneficial technical effects, and has significant progress.

[0074] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A cleaning device for a marine buoy (93) on board, arranged around a navigation mark well (91) on board, characterized in that: include: Base, splash guard, fit and flush; The base comprises an outer ring base (1), an inner ring base (2) and a bottom plate (3); the bottom plate (3) is connected to the bottom between the outer ring base (1) and the inner ring base (2); a filter screen (4) is also provided at the top between the outer ring base (1) and the inner ring base (2); when in operation, the outer ring base (1) and the inner ring base (2) are concentric with the navigation well (91); The splash-proof part comprises a top frame (5) and a sliding door (6), wherein the top frame (5) is arranged directly above the outer ring base (1), and a plurality of sliding doors (6) are slidably arranged between the outer ring base (1) and the top frame (5); The bonding portion is arranged on the inner ring base (2), and the bonding portion comprises a shrink film (7) and a retracting and expanding mechanism (8); the shrink film (7) is annular, the outer circle of the shrink film (7) is fixed to the upper side of the filter screen area, the inner circle of the shrink film (7) is connected to the retracting and expanding mechanism (8), and when the retracting and expanding mechanism (8) is in operation, the inner circle of the shrink film (7) is bonded to the shell of the buoy (93); The flushing unit comprises a spray gun (85) for flushing the surface of the buoy (93).

2. A cleaning device for a marine buoy (93) as claimed in claim 1, characterized in that: The shrink film (7) comprises an inner elastic ring (70) on the inner circle side, an outer elastic ring (71) on the outer circle side, and a connecting elastic film (72); The connecting elastic membrane (72) is connected between the inner elastic ring (70) and the outer elastic ring (71); The outer elastic ring (71) is fixed to the upper side of the filter area, and the inner elastic ring (70) is fixed to the retracting rod (81) of the retracting mechanism (8).

3. A cleaning device for a marine buoy (93) as claimed in claim 2, characterized in that: The retracting mechanism (8) is provided with a plurality of groups along the inner ring base (2), and the retracting mechanism (8) comprises a first rod (80), a retracting rod (81) and a retracting power source; The first rod (80) points to the center of the navigation well (91) along the radius of the inner ring base (2), the retracting rod (81) is rotatably connected to the end of the first rod (80), and the rotation angle is controlled by the retracting power source, and the inner ring elastic ring (70) is fixedly connected to the other end of the retracting rod (81).

4. A cleaning device for a marine buoy (93) as claimed in claim 2, characterized in that: The retracting mechanism (8) is provided in multiple groups along the inner ring base (2), and the retracting mechanism (8) comprises a first rod (80), a retracting rod (81), a first elastic member (82), a second elastic member (83) and a support seat (84); The first rod (80) points to the center of the navigation mark well (91) along the radius of the inner ring base (2); the retracting rod (81) is rotatably connected to the end of the first rod (80); the inner ring elastic ring (70) is fixedly connected to the other end of the retracting rod (81); the support seat (84) is fixedly arranged on the inner ring base (2); and the support seat (84) slidably supports the retracting rod (81); The first rod (80) is slidably matched with the inner ring base (2), the first elastic member (82) is arranged between the inner ring base (2) and the end of the first rod (80), and the second elastic member (83) is arranged between the inner ring base (2) and the retracting rod (81).

5. A cleaning device for a marine buoy (93) as claimed in claim 3 or 4, characterized in that: The retracting rod (81) comprises a rotating connection end (811) and a retracting end (812), wherein the rotating connection end (811) is rotatably connected to the first rod (80), and the retracting end (812) is fixedly connected to the inner elastic ring (70).

6. A cleaning device for a marine buoy (93) as claimed in claim 5, characterized in that: The rotating connection end (811) is circular, and a friction layer (8111) is provided on the circular outer periphery of the rotating connection end (811).

7. A cleaning device for a marine buoy (93) as claimed in claim 5, characterized in that: The retracting end (812) is provided with a hook-shaped limiting area (8121), a limiting protrusion (8122) is provided at the opening of the hook-shaped limiting area (8121), a gap (8123) is left between the hook-shaped limiting area (8121) and the limiting protrusion (8122), the inner ring elastic ring (70) is clamped in the hook-shaped limiting area (8121), and a connecting elastic membrane (72) connected to the inner ring elastic ring (70) is led out from the gap (8123).

8. A cleaning device for a marine buoy (93) as claimed in claim 4, characterized in that: A through hole (841) is provided at the end of the support seat (84) extending along the outer ring base (1), and the outer ring elastic ring (71) is clamped in the through hole (841).

9. The onboard cleaning device for a marine buoy (93) according to claim 1, characterized in that: The flushing portion further comprises a support rod (86), a sliding seat (87) and a rotating sleeve (88); The two ends of the support rod (86) are respectively connected in a circular sliding manner between the outer ring base (1) and the top frame (5); the sliding seat (87) is connected in a sliding manner to the support rod (86); the rotating sleeve (88) is connected to the sliding seat (87) via a ball joint; and the spray gun (85) is fixedly installed in the rotating sleeve (88).

10. A method for cleaning a marine buoy (93) on board a ship, characterized in that: The onboard cleaning device for a marine buoy (93) as claimed in claim 6 comprises the following steps: The cleaning device on board the offshore buoy (93) is moved to the navigation well (91) and is concentric with the navigation well (91), and the buoy (93) is lifted from the seawater and moved to above the navigation well (91) and the cleaning device; The buoy (93) is slowly lowered. When the bottom of the buoy (93) contacts the retracting rod (81), the bottom of the buoy (93) generates pressure on the retracting rod (81), pushing the first rod (80) to overcome the elastic force of the elastic member and retract until the rotating connection end (811) of the retracting rod (81) contacts the buoy (93). When the buoy (93) is continuously lowered, the retracting rod (81) will flip toward the buoy (93) under the action of friction, and at the same time, the other end of the retracting rod (81) is attached to the buoy (93), and the inner elastic ring (70) on the inner circle side of the shrink film (7) is attached to the buoy (93); After the buoy (93) is completely placed in the navigation well (91), the surface of the buoy (93) is washed with a spray gun (85), water and debris fall down, the debris is trapped on the upper side of the filter, and the water enters the base on the lower side of the filter. A water pipe is set at the base to lead out the washing water, and the washing water is pumped back into the spray gun (85) after being filtered.

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