Unmanned boat garbage collection device
By designing an unmanned vessel garbage collection device, which utilizes a one-way self-locking door and a telescopic drive mechanism to achieve automatic unloading between the unmanned vessel and the surface garbage pool, the problem of frequent unmanned vessel return for unloading is solved, improving operational continuity and efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANYA GONGDAO MARINE ENG TECH CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-06-02
AI Technical Summary
Existing unmanned vessels have limited storage capacity in their enclosed garbage compartments, requiring frequent return trips for unloading, which affects operational continuity and efficiency. Furthermore, increasing the vessel size would reduce maneuverability and increase costs.
Design an unmanned vessel garbage collection device, which adopts an openable and closable cage and a surface garbage pool. The unmanned vessel and the surface garbage pool are automatically unloaded using a one-way self-locking door and a telescopic drive device. The garbage is transferred and temporarily stored by water flow and gravity.
It improves the operational continuity and overall efficiency of unmanned vessels, reduces the frequency of return trips, enhances maneuverability, and lowers manufacturing costs.
Smart Images
Figure CN224314153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned vessel technology, and in particular to an unmanned vessel garbage collection device. Background Technology
[0002] With rapid urbanization and intensified human activities, floating debris in water bodies (such as plastic bottles, foam blocks, and fallen leaves) has become a significant threat to the aquatic ecosystem. In recent years, intelligent unmanned vessels have been widely used in water surface cleaning tasks due to their advantages such as high flexibility, low operating costs, and remote control capabilities.
[0003] Currently, most mainstream unmanned cleaning boats have an open sewage collection port at the bow and an enclosed garbage compartment inside, which uses water flow or mechanical propulsion to collect garbage from the front into the compartment for storage.
[0004] The applicant has identified at least the following technical problems with existing technologies: Due to the space constraints of miniaturized platforms, the effective waste storage capacity of these unmanned surface vessels (USVs) is generally small, requiring them to return to shore regularly for unloading, which significantly reduces the operational coverage per unit time. Most existing surface cleaning USVs use enclosed waste compartments, whose internal volume is limited by the vessel's size. When the waste density in the work area is high, frequent returns to the shore or mother vessel for unloading are necessary, severely impacting operational continuity and overall efficiency. This bottleneck is particularly prominent in long-distance, large-scale waterway management tasks. Furthermore, increasing the storage and transport capacity of a single vessel using traditional methods requires increasing the vessel's size, leading to decreased maneuverability and increased manufacturing costs; while manual salvage and transfer suffer from slow response times and high reliance on human labor. Utility Model Content
[0005] The purpose of this utility model is to provide an unmanned vessel garbage collection device to solve the technical problem that the existing unmanned vessels use closed garbage compartments to store garbage, which requires frequent returns to unload, seriously affecting the continuity of operations and overall efficiency. The various technical effects of the preferred technical solutions provided by this utility model are described in detail below.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] The unmanned surface vessel (USV) garbage collection device provided by this utility model includes an USV hull, a surface garbage pool, and a cage disposed within the USV hull, wherein:
[0008] The cage has a garbage collection opening and a closable rear garbage door.
[0009] The surface garbage pool is anchored or floated at a coordinate point in the water area. The surface garbage pool includes a floating pool body and a one-way self-locking door. The one-way self-locking door can open the garbage inlet of the floating pool body under the push of the unmanned vessel. At least part of the hull of the unmanned vessel can enter the floating pool body. When the rear garbage door is in the open state, the cage body can unload garbage into the floating pool body.
[0010] The one-way self-locking door can return to the closed state after the thrust of the unmanned vessel hull is removed.
[0011] Preferably, the one-way self-locking door includes a door body, a door hinge, and a resilient reset member, wherein:
[0012] The door is rotatably connected to the waste inlet of the floating tank via the door hinge. A limit block is provided on the door. When the door closes the waste inlet, the limit block abuts against the side wall of the waste inlet, thereby restricting the door to open only towards the inside of the floating tank.
[0013] The two ends of the elastic reset member are connected to the float pool and the limiting block, and are used to pull the limiting block to fit against the side wall of the garbage inlet, thereby resetting the door to the closed state.
[0014] Preferably, the two one-way self-locking doors are located on opposite side walls of the waste inlet, and the two one-way self-locking doors cooperate to close or open the waste inlet.
[0015] Preferably, the rear garbage door is rotatably connected to the cage body via a first horizontal pivot.
[0016] The unmanned vessel is also equipped with a first telescopic drive device. The first telescopic drive device is located outside the cage and is inclined. The telescopic end of the first telescopic drive device is hinged to the rear garbage door, and the other end is hinged to the hull of the unmanned vessel. It is used to drive the rear garbage door to rotate around the first horizontal axis, thereby opening the rear garbage door.
[0017] Preferably, the cage is also provided with a front garbage door, the garbage collection port is located on the front side of the cage, and the front garbage door is designed to be openable and closable at the garbage collection port.
[0018] Preferably, the front garbage door is rotatably connected to the cage body via a second horizontal pivot.
[0019] The unmanned vessel is also equipped with a second telescopic drive device. The second telescopic drive device is located outside the cage and is inclined. The telescopic end of the second telescopic drive device is hinged to the front garbage door, and the other end is hinged to the hull of the unmanned vessel. It is used to drive the front garbage door to rotate around the second horizontal axis, thereby opening the front garbage door.
[0020] Preferably, the bottom of the cage is a permeable mesh plate.
[0021] Preferably, both the rear garbage door and the front garbage door are mesh panel structures.
[0022] Preferably, the surface garbage pits are arranged in a matrix pattern within the target water area.
[0023] Preferably, the unmanned vessel hull is provided with front guide vanes on opposite sides, and the horizontal distance between the front guide vanes on both sides gradually increases in the direction away from the unmanned vessel hull and is flared, which is used to guide floating objects in front of the unmanned vessel hull into the cage when the unmanned vessel hull is moving.
[0024] The unmanned vessel garbage collection device provided by this utility model has the following advantages compared with the prior art: When it is necessary to unload the garbage in the cage, the stern of the unmanned vessel strikes the one-way self-locking door. Under pressure, the one-way self-locking door opens, and the unmanned vessel can partially enter the floating pool. The garbage collection port of the cage is closed, and the rear garbage door is opened. The unmanned vessel slowly moves forward and exits the surface garbage pool. The garbage in the cage slides down naturally under the action of water flow and gravity, and the garbage is retained in the garbage pool. The surface garbage pool in the water area constitutes a storage node, which works with the unmanned vessel to complete the transfer and temporary storage of garbage, improves the overall throughput capacity of the device, and the unmanned vessel does not need to return frequently, thus improving the continuity of unmanned vessel operations and overall efficiency. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the surface garbage pool in this embodiment;
[0027] Figure 2 This is a three-dimensional structural diagram of the surface garbage pool and the unmanned vessel hull in this embodiment.
[0028] Figure 3This is a top view schematic diagram of the surface garbage pool and the unmanned vessel hull in this embodiment.
[0029] Figure 4 This is a structural schematic diagram of the unmanned vessel from the rear view of its hull.
[0030] Figure 5 yes Figure 4 Schematic diagram of the structure at point A;
[0031] Figure 6 This is a structural schematic diagram of the unmanned vessel from the front view of its hull.
[0032] Figure 7 This is a structural schematic diagram of the unmanned vessel from the bottom of its hull;
[0033] In the diagram: 100. Unmanned vessel hull; 101. Front guide vane; 1. Surface garbage bin; 11. Floating tank body; 12. One-way self-locking door; 121. Door body; 122. Door hinge; 123. Elastic reset component; 124. Limiting block; 2. Cage body; 21. Rear garbage door; 22. First horizontal pivot; 23. Front garbage door; 24. Second horizontal pivot; 25. Permeable mesh plate; 3. First telescopic drive device; 4. Second telescopic drive device. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0035] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] This utility model provides an unmanned vessel garbage collection device that can transfer and temporarily store garbage without the need for the unmanned vessel to frequently return to port, thus improving the continuity of unmanned vessel operations and overall efficiency.
[0038] The following is combined Figures 1-7 The technical solution provided by this utility model will be described in more detail.
[0039] like Figures 1-7 As shown, the unmanned vessel garbage collection device provided by this utility model includes an unmanned vessel hull 100, a surface garbage pool 1, and a cage 2 disposed within the unmanned vessel hull 100. The cage 2 has a garbage collection opening and a closable rear garbage door 21. The surface garbage pool 1 is anchored or floated at a coordinate point in the water area. The surface garbage pool 1 includes a float pool 11 and a one-way self-locking door 12. The one-way self-locking door 12 can open the garbage inlet of the float pool 11 under the push of the unmanned vessel, allowing at least a portion of the unmanned vessel hull 100 to enter the float pool 11. When the rear garbage door 21 is open, the cage 2 can unload garbage into the float pool 11. The one-way self-locking door 12 can return to a closed state after the push of the unmanned vessel hull 100 is removed.
[0040] Among them, see Figure 1 and Figure 2 , Figure 3 As shown, the surface garbage pool 1 in this embodiment is a floating structure. The floating pool body 11 itself can be enclosed by a net or a permeable filter plate (not shown) at the bottom. The whole is rectangular container-shaped, allowing water to flow through while trapping solid garbage, without affecting water exchange, and at the same time preventing fish from accidentally entering and getting trapped.
[0041] Specifically, in this embodiment, multiple surface garbage pools 1 can be arranged in a grid pattern in key water areas. In other words, the surface garbage pools 1 are arranged in a matrix-like interval in the target water area. The unmanned vessel can select the nearest available pool for unloading according to the task scheduling. The background management system monitors the filling status of each pool in real time, which is convenient for unified cleaning and transportation in the later stage.
[0042] See Figure 2 and Figure 3As shown, the one-way self-locking door 12 in this embodiment can only be opened from the outside to the inside. Once the external force is removed, it will automatically close and lock to prevent internal debris from overflowing with water or waves.
[0043] When it is necessary to unload the garbage inside cage 2, the stern of the unmanned vessel hull 100 strikes the one-way self-locking door 12. Under pressure, the one-way self-locking door 12 opens, allowing the unmanned vessel hull 100 to partially enter the float pool 11, closing the garbage collection port of cage 2, and opening the garbage door 21. (See below) Figure 3 , Figure 3 The arrows indicate the direction of movement of the unmanned vessel hull 100 when unloading garbage. The unmanned vessel hull 100 slowly moves forward and exits the garbage pool 1 on the water surface. The garbage in the cage 2 naturally slides off under the action of water flow and gravity, and the garbage remains in the garbage pool.
[0044] In this embodiment, the unmanned vessel garbage collection device uses the surface garbage pool 1 as the offline unloading point of the unmanned vessel hull 100. The unmanned vessel hull 100 can unload the collected garbage into the nearest surface garbage pool 1 in the operating water area, thereby greatly extending its single operation time and improving the continuity and efficiency of the operation.
[0045] As an optional implementation, the one-way self-locking door 12 includes a door body 121, a door hinge 122, and an elastic reset member 123. The door body 121 is rotatably connected to the garbage inlet of the float tank 11 via the door hinge 122. A limit block 124 is provided on the door body 121. When the door body 121 closes the garbage inlet, the limit block 124 abuts against the side wall of the garbage inlet, thereby restricting the door body 121 to open only in the direction of the interior of the float tank 11. The two ends of the elastic reset member 123 are connected to the float tank 11 and the limit block 124, and are used to pull the limit block 124 to fit against the side wall of the garbage inlet, thereby resetting the door body 121 to the closed state.
[0046] Specifically, the aforementioned limiting block 124 can also adopt a hinge structure, see [reference needed]. Figure 2 and Figure 3 As shown, the stern of the unmanned vessel hull 100 can push the door 121 towards the inside of the float pool 11. The door 121 can be made of flexible waterproof material (such as high-strength PVC coated fabric) or rigid lightweight board, connected to the pool inlet side by a hinge, and equipped with an elastic reset element 123. The elastic reset element 123 can be a torsion spring, tension spring, or other existing technology. For example, a torsion spring can be used, with one end fixed to the float pool 11 and the other end acting on the door 121. When the door 121 is pushed open, the torsion spring stores energy, and when the pushing force is removed, the torsion spring releases energy to reset the door 121. Alternatively, a tension spring can be used, with one end connected to the float pool 11 and the other end connected to the limiting block 124 on the door 121, so that the door 121 is closed by tension.
[0047] The aforementioned structure prevents the door 121 from accidentally opening outwards under the impact of water flow or the pressure of internal garbage, effectively preventing garbage in the float pool 11 from flowing back into the water. The elastic reset component 123 ensures that the door 121 can return to the closed state after the thrust of the unmanned vessel hull 100 is removed, without the need for additional drive or control. This structure not only enhances the stability and safety of the one-way self-locking door 12, but also facilitates the garbage unloading cooperation between the unmanned vessel and the surface garbage pool 1.
[0048] As an optional implementation, see Figures 1-3 Two one-way self-locking doors 12 are located on opposite side walls of the waste inlet, and the two one-way self-locking doors 12 work together to close or open the waste inlet.
[0049] Sealing blocks or similar materials can be installed on the mating sides of the two one-way self-locking doors 12. The two one-way self-locking doors 12 cooperate on the opposite side walls of the waste inlet, providing a wider waste inlet, facilitating waste unloading by the unmanned vessel, and effectively preventing the overflow of collected waste when closed.
[0050] As an optional implementation, see Figure 4 and Figure 5 As shown, in this embodiment, the rear garbage door 21 can only be opened towards the outside of the cage 2 to prevent the rear garbage door 21 from being unable to open when there is a lot of garbage in the cage 2.
[0051] See Figure 4 and Figure 5 As shown, the rear garbage door 21 is rotatably connected to the cage body 2 via the first horizontal pivot 22; the unmanned vessel hull 100 is also provided with a first telescopic drive device 3, which is located outside the cage body 2 and is inclined. The telescopic end of the first telescopic drive device 3 is hinged to the rear garbage door 21, and its other end is hinged to the unmanned vessel hull 100, which is used to drive the rear garbage door 21 to rotate around the first horizontal pivot 22, thereby opening the rear garbage door 21.
[0052] In this embodiment, the first telescopic drive device 3 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc. In this embodiment, the rear garbage door 21 is rotatably connected to the cage body 2 via the first horizontal rotating shaft 22, and an inclined first telescopic drive device 3 is provided. When the unmanned vessel hull 100 enters the float pool 11 of the surface garbage pool 1 to unload garbage, the first telescopic drive device 3 pulls the rear garbage door 21 to rotate around the first horizontal rotating shaft 22 and open it towards the outside of the cage body 2. This ensures the smooth opening of the door 121 without manual intervention, improves the efficiency of garbage unloading operations, and ensures that the unmanned vessel can successfully complete garbage collection and transfer even in an unattended state.
[0053] As an optional implementation, see Figure 2 , Figure 4 and Figure 6 As shown, the cage 2 in this embodiment is also provided with a front garbage door 23. The garbage collection port is located on the front side of the cage 2, and the front garbage door 23 is designed to be openable and closable at the garbage collection port.
[0054] The function of the front garbage door 23 is to close the garbage collection opening when not collecting garbage, preventing garbage already inside the cage 2 from escaping from the front due to the movement of the unmanned vessel or water currents. During garbage collection operations, the front garbage door 23 can be opened to allow garbage to smoothly enter the cage 2. The garbage collection opening is located on the front side of the cage 2 and serves as the entrance for guiding and receiving floating garbage into the cage 2 when the unmanned vessel is navigating on the water. Positioning it on the front of the cage 2 facilitates the unmanned vessel directly collecting surface garbage from the water ahead during its forward movement.
[0055] As an optional implementation, see Figure 6 As shown, in this embodiment, the front garbage door 23 is rotatably connected to the cage 2 via a second horizontal pivot 24. A second telescopic drive device 4 is also provided on the unmanned vessel hull 100. The second telescopic drive device 4 is located outside the cage 2 and is inclined. The telescopic end of the second telescopic drive device 4 is hinged to the front garbage door 23, and its other end is hinged to the unmanned vessel hull 100. It is used to drive the front garbage door 23 to rotate around the second horizontal pivot 24, thereby opening the front garbage door 23. In this embodiment, the first telescopic drive device 3 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc.
[0056] See Figure 6 As shown, when the unmanned surface vessel (USV) needs to collect surface debris, the second telescopic drive device 4 retracts, pulling the front debris door 23 to rotate around the second horizontal pivot 24. The front debris door 23 opens towards the outside of the cage 2, thus opening the debris collection port. During its movement, the USV hull 100 can effectively guide floating debris into the cage 2. When debris collection is complete or in a non-collection state, the second telescopic drive device 4 pushes the front debris door 23 to close, effectively preventing collected debris from overflowing from the cage 2 and protecting the interior of the cage 2 from external environmental influences.
[0057] Specifically, when the unmanned vessel needs to collect surface garbage, the front garbage door 23 opens and the rear garbage door 21 closes; when it needs to unload the garbage in the cage 2 into the surface garbage pool 1, the front garbage door 23 closes and the rear garbage door 21 opens.
[0058] As an optional implementation, see Figure 7 The bottom of cage 2 is a permeable mesh plate 25. (See also...) Figure 2 Both the rear garbage door 21 and the front garbage door 23 are grid panel structures.
[0059] The aforementioned structure allows water to drain out of the cage 2 through the permeable mesh plate 25, the front garbage door 23, and the rear garbage door 21, while solid waste is effectively trapped inside the cage 2. This reduces the amount of water carried by the cage 2 when collecting garbage, thereby reducing the overall load on the unmanned vessel hull 100 and improving its navigation stability, energy efficiency, and endurance. When the unmanned vessel unloads the collected garbage into the surface garbage pool 1, since most of the water in the cage 2 has been drained, only a small amount or no water is unloaded with the garbage, improving garbage unloading efficiency.
[0060] As an optional implementation, see Figures 2-4 , Figure 7 As shown, in this embodiment, front guide vanes 101 are provided on opposite sides of the unmanned vessel hull 100. The horizontal distance between the front guide vanes 101 on both sides gradually increases in the direction away from the unmanned vessel hull 100 and is horn-shaped, which is used to guide floating objects in front of the unmanned vessel hull 100 into the cage 2 when the unmanned vessel hull 100 is moving.
[0061] See Figures 2-4 , Figure 7 As shown, the front deflector 101 gradually opens outward from a position near the centerline of the unmanned vessel hull 100, forming a wide, funnel-shaped inlet that can cover a water area larger than the width of the hull. The front deflector 101 is used to guide floating objects in front of the unmanned vessel hull 100 into the cage 2 as the vessel moves. Under the action of the front deflector 101, the water flow and floating objects are forced to move inward and eventually enter the cage 2 through the garbage collection inlet.
[0062] In this embodiment, the unmanned surface vessel (USV) garbage collection device operates as follows: During the garbage collection phase: the USV hull 100 travels forward, the front garbage door 23 opens, and the rear garbage door 21 closes. Water flow guidance and the front deflector 101 guide floating debris into the cage 2. Full load identification: The USV hull 100 determines that it is full through weight sensors, visual recognition, or volume estimation, and initiates a return procedure (as prior art for USVs, this will not be elaborated upon here). Unloading: The USV autonomously navigates to the target surface garbage pool 1 based on pre-stored coordinates, adjusting its course so that its stern aligns with the garbage pool entrance. Subsequently... The unmanned vessel (UAV) reverses forward, striking the one-way self-locking door 12 of the surface garbage pit 1 with its stern. Under pressure, the door 121 flips open outward, allowing the UAV 100 to enter the garbage pit to approximately two-thirds of its length. Reverse unloading: After entering, the front garbage door 23 closes, the rear garbage door 21 opens, and the UAV 100 slowly moves forward out of the surface garbage pit 1. At this time, the garbage inside the cage 2 naturally slides down under the influence of water flow and gravity, remaining in the surface garbage pit 1. Automatic closing: After the UAV has completely exited, the one-way self-locking door 12 closes and locks due to spring-loaded reset, completing a contactless unloading operation. Multiple surface garbage pits 1 are deployed in a grid pattern in key water areas. The UAV can select the nearest available pit for unloading according to task scheduling. Multiple surface garbage pits 1 constitute a distributed storage node, supporting shared use by multiple UAVs and improving the overall system throughput. The backend management system monitors the filling status of each pit in real time, facilitating unified removal later.
[0063] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.
[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0065] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An unmanned vessel garbage collection device, characterized in that, It includes an unmanned vessel hull, a surface waste disposal area, and a cage housed within the unmanned vessel hull, wherein: The cage has a garbage collection opening and a closable rear garbage door. The surface garbage pool is anchored or floated at a coordinate point in the water area. The surface garbage pool includes a floating pool body and a one-way self-locking door. The one-way self-locking door can open the garbage inlet of the floating pool body under the push of the unmanned vessel. At least part of the hull of the unmanned vessel can enter the floating pool body. When the rear garbage door is in the open state, the cage body can unload garbage into the floating pool body. The one-way self-locking door can be restored to the closed state after the thrust of the unmanned vessel hull is removed; The one-way self-locking door includes a door body, a door hinge, and a resilient reset component, wherein: The door is rotatably connected to the waste inlet of the floating tank via the door hinge. A limit block is provided on the door. When the door closes the waste inlet, the limit block abuts against the side wall of the waste inlet, thereby restricting the door to open only towards the inside of the floating tank. The two ends of the elastic reset member are connected to the float pool and the limiting block, and are used to pull the limiting block to fit against the side wall of the garbage inlet, thereby resetting the door to the closed state.
2. The unmanned vessel garbage collection device according to claim 1, characterized in that, The two one-way self-locking doors are located on opposite side walls of the waste inlet, and the two one-way self-locking doors cooperate to close or open the waste inlet.
3. The unmanned vessel garbage collection device according to claim 1, characterized in that, The rear garbage door is rotatably connected to the cage body via a first horizontal pivot. The unmanned vessel is also equipped with a first telescopic drive device. The first telescopic drive device is located outside the cage and is inclined. The telescopic end of the first telescopic drive device is hinged to the rear garbage door, and the other end is hinged to the hull of the unmanned vessel. It is used to drive the rear garbage door to rotate around the first horizontal axis, thereby opening the rear garbage door.
4. The unmanned vessel garbage collection device according to claim 1, characterized in that, The cage is also equipped with a front garbage door, and the garbage collection port is located on the front side of the cage. The front garbage door is designed to be openable and closable at the garbage collection port.
5. The unmanned vessel garbage collection device according to claim 4, characterized in that, The front garbage door is rotatably connected to the cage body via a second horizontal pivot. The unmanned vessel is also equipped with a second telescopic drive device. The second telescopic drive device is located outside the cage and is inclined. The telescopic end of the second telescopic drive device is hinged to the front garbage door, and the other end is hinged to the hull of the unmanned vessel. It is used to drive the front garbage door to rotate around the second horizontal axis, thereby opening the front garbage door.
6. The unmanned vessel garbage collection device according to claim 1, characterized in that, The bottom of the cage is a permeable mesh plate.
7. The unmanned vessel garbage collection device according to claim 4, characterized in that, Both the rear garbage door and the front garbage door are mesh panel structures.
8. The unmanned vessel garbage collection device according to claim 1, characterized in that, The surface garbage pits are arranged in a matrix pattern within the target water area.
9. The unmanned vessel garbage collection device according to claim 1, characterized in that, The unmanned vessel has front guide vanes on opposite sides of its hull. The horizontal distance between the front guide vanes on both sides gradually increases in the direction away from the unmanned vessel hull and is flared outwards. These vanes are used to guide floating objects in front of the unmanned vessel into the cage when the unmanned vessel is moving.