Unmanned ship for marine environment monitoring and sampling

Abstract

The utility model discloses a marine environment monitoring and sampling unmanned ship which comprises an unmanned ship body, and a seabed sediment sampling mechanism is installed at the tail of the unmanned ship body. The seabed sediment sampling mechanism comprises a sampling structure lowered to the seabed for sampling, the sampling structure comprises a sampling frame, a plurality of sampling filter bag structures are mounted on the sampling frame, and sediment is collected in the sampling filter bag structures in the sampling process; the sampling filter bag structure comprises a sampling filter bag, and a bag opening of the sampling filter bag is fixedly connected with a filter bag opening ring seat mounted on the sampling frame; the sampling structure further comprises a bottom towing bracket fixedly installed on the sampling frame, and a plurality of filtering and blocking rods are fixedly connected into the bottom towing bracket. By means of the structure, in the marine environment monitoring and sampling process, sampling is conducted in the complex seabed sampling environment in the mode of being easy to operate, high in sampling efficiency and high in flexibility, and the marine environment monitoring and sampling efficiency is greatly improved in the mode.

Description

TECHNICAL FIELD

[0001] The utility model belongs to marine environment monitoring sampling technical field especially relates to a marine environment monitoring sampling unmanned ship. BACKGROUND

[0002] Marine environment monitoring is an important measure in the process of marine environment protection. In the process of marine environment monitoring, seawater sampling and detection and marine bottom sediment sampling and detection are needed. After sampling, the samples are detected by detection instruments to determine the marine pollution situation.

[0003] Among them, sediment detection can analyze the content of radioactive pollutants and heavy metal pollution in the ocean. However, due to the large depth of seawater and the vast sea area, it is difficult to sample the bottom sediment.

[0004] The current sampling method is to manually drive a yacht to the corresponding sea area, lower the sampling net into the seabed, and drag the sediment on the seabed into the net. However, the sampling effect is poor in this process. Once the net is scratched by stones and reefs on the seabed, the net structure is easily broken, which leads to the leakage of the sampled sediment (mostly seabed silt) from the broken position of the net structure when the net is salvaged.

[0005] Therefore, in actual work, a metal net structure is used, such as a net structure formed by metal chains. However, the net structure is too heavy, and the depth of the net structure is large during sampling, so it is not only laborious to operate, but also difficult to operate during sampling.

[0006] Therefore, in the face of complex seabed environment sampling, how to sample by a simple, flexible and efficient sampling method is crucial to improve the sampling efficiency. UTILITY MODEL CONTENT

[0007] Based on the above background, the purpose of the utility model is to provide a marine environment monitoring sampling unmanned ship.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A marine environment monitoring sampling unmanned ship, comprising an unmanned ship, a seabed sediment sampling mechanism installed at the tail of the unmanned ship;

[0010] The seabed sediment sampling mechanism comprises a sampling structure lowered to the seabed for sampling, and the sampling structure comprises a sampling frame, a plurality of sampling filter bag structures are installed on the sampling frame, and the sediments are collected in the sampling filter bag structures during sampling; the sampling filter bag structure comprises a sampling filter bag, and a filter bag opening part ring seat installed on the sampling frame is fixedly connected to the bag opening of the sampling filter bag;

[0011] The sampling structure further comprises a bottom tow frame fixedly installed on the sampling frame, and a plurality of filter rods are fixedly connected in the bottom tow frame.

[0012] Preferably, the seabed sediment sampling mechanism further comprises a rope lowering structure installed at the tail position of the unmanned ship for lowering the sampling structure;

[0013] The sampling structure is pulled and hung on the rope lowering structure, and the sampling structure is lowered through the rope lowering structure during sampling.

[0014] Preferably, the rope lowering structure comprises fixed supports arranged at intervals on both sides, and the fixed supports are fixedly installed on the unmanned ship;

[0015] A cable releasing shaft is rotatably connected between the fixed supports, and two strands of cable releasing lines are wound on the cable releasing shaft; the cable releasing lines are pulled and hung on the bottom tow frame;

[0016] A motor for driving the cable releasing shaft to rotate is installed on the fixed support.

[0017] Preferably, V-shaped ropes are fixedly connected to the front and rear sides of the bottom tow frame respectively, and the bifurcated parts at the two ends of the V-shaped ropes are fixed to the two sides of the bottom tow frame respectively.

[0018] The cable releasing lines are fixed to the central parts of the V-shaped ropes.

[0019] Preferably, the bottom tow frame comprises U-shaped tow frame parts arranged at intervals in front and back, and anchor column heads for anchoring the V-shaped ropes are fixedly connected to the two ends of the U-shaped tow frame parts respectively.

[0020] Preferably, the sampling frame is arranged in a downward inclination; and the U-shaped tow frame parts are fixedly connected to the front and rear side walls of the sampling frame respectively.

[0021] The sampling frame is a frame-shaped structure frame.

[0022] Preferably, a shovel plate is fixedly connected to the rear end part of the sampling frame, and the sediment is shoveled through the shovel plate.

[0023] Preferably, a plurality of installation holes are formed in the sampling frame, and filter bag mouth part ring seats are fixedly connected to the top of the installation holes.

[0024] Preferably, triangular baffle plates are fixedly connected in the U-shaped tow frame parts.

[0025] The present application has the following beneficial effects:

[0026] 1. During the sampling process, after the entire sampling structure is placed on the seabed, the shovel plate comes into contact with the seabed sediments. Therefore, under the dragging of the unmanned surface vessel, the shovel plate is scooped into the seabed sediments (mostly silted sea sand) to a certain depth. During this process, the scooped sediments move along the shovel plate guide towards the sampling frame and then enter the sampling filter bag structure after moving to the sampling filter bag structure.

[0027] By designing multiple sampling filter bag structures, a large sample volume can be obtained. Furthermore, during operation, if one sampling filter bag structure is damaged, the remaining normally functioning sampling filter bags can still retrieve the sampled sediment, ensuring successful sampling.

[0028] 2. The bottom towframe, including the U-shaped towframes spaced at both ends, along with the filter rods, not only increases the stability of the bottom towframe but also forms a sampling cage structure similar to a wire mesh between the filter rods and the bottom towframes. Simultaneously, triangular baffles are fixedly connected inside the U-shaped towframe section. During operation, when the entire device is towed on the seabed, some large pieces of sediment enter the relatively enclosed space formed by the U-shaped towframe section, filter rods, and triangular baffles, enabling the collection and sampling of large materials such as seabed mineral blocks.

[0029] 3. During operation, once the unmanned surface vessel (USV) reaches a specific area, the motor activates and lowers the sampling structure. The rope lowering mechanism, as described above, ensures a smooth descent of the sampling structure, maintaining its stable position on the seabed. After being towed a distance by the USV, a large amount of seabed sediment, such as sand and gravel, enters the sampling filter bag, completing the sampling process. The vehicle is then driven by the motor to pull the USV out of the water. Attached Figure Description

[0030] 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 the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the seabed sediment sampling mechanism in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the sampling filter bag in an embodiment of the present invention;

[0034] Figure 4This is a schematic diagram of the triangular baffle structure that is fixedly connected to the U-shaped bracket in an embodiment of this utility model.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] Example 1

[0040] like Figures 1-4 As shown, a marine environmental monitoring sampling unmanned surface vessel (USV) includes USV 3, which is a conventional unmanned oil tanker disclosed in the prior art. Similar to existing USVs 3, USV 3 utilizes the BeiDou navigation and positioning system to reach specific sea areas for sampling operations.

[0041] In order to achieve a simple and quick way to sample seabed sediments, the unmanned surface vessel 3 is equipped with a seabed sediment sampling mechanism 2 at its stern.

[0042] Specifically, the seabed sediment sampling mechanism 2 comprises a sampling structure lowered to the seabed for sampling, and the sampling structure comprises a sampling frame 23 in the shape of a frame structure formed by welding steel plates. A plurality of mounting holes are formed on the top and left and right sides and the front and back sides of the sampling frame 23, respectively, and one sampling filter bag structure 24 is arranged in each mounting hole. During sampling, sediments are collected in the sampling filter bag structure 24. Therefore, in order to facilitate the seabed sediments to enter the sampling filter bag structure 24, the sampling frame 23 is designed to be inclined downward, and the specific inclination direction is the forward direction of the unmanned ship 3 (i.e., the rear end is inclined downward).

[0043] Meanwhile, the rear end of the sampling frame 23 is fixedly connected with a shovel plate 25, and the sediments are shoveled by the shovel plate 25.

[0044] When the entire device is placed on the seabed, the shovel plate 25 contacts the seabed sediments, so under the dragging of the unmanned ship 3, the shovel plate 25 is shoveled into the seabed sediments (mostly accumulated sea sand) to a certain depth. In this process, the shoveled sediments are guided along the shovel plate 25 towards the sampling frame 23 and move to the sampling filter bag structure 24 position and then enter the sampling filter bag structure 24.

[0045] By designing a plurality of sampling filter bag structures 24, a larger sample amount can be obtained, and at the same time, during the working process, once a certain sampling filter bag structure 24 is damaged, the remaining normally working sampling filter bag structures 24 can still salvage the sampled sediments. Ensure successful sampling.

[0046] Embodiment 2

[0047] As shown in Figures 1-4 the structure of embodiment 1, the above-mentioned sampling filter bag structure 24 comprises a sampling filter bag 242, and the bag opening of the sampling filter bag 242 is fixedly connected with a filter bag opening ring seat 241 installed on the sampling frame 23. According to the existing manner, the filter bag opening ring seat 241 is fixedly connected on the top of the mounting hole by a plurality of bolts.

[0048] After sampling, the sample can be taken out by disassembling the filter bag opening ring seat 241 and the sampling filter bag 242. The sampling filter bag 242 is preferably made of thickened nylon material, which facilitates to reduce the overall weight and thus increase the flexibility of operation.

[0049] The above-mentioned sampling structure further comprises a bottom towing frame fixedly installed on the sampling frame 23, and a plurality of filter blocking rods 22 are fixedly connected in the bottom towing frame.

[0050] Specifically, the bottom drag rack includes U-shaped drag rack portions 21 (welded) arranged at intervals front and back. Filter rods 22 are welded between the U-shaped drag rack portions 21 (the filter rods 22 are staggered with the sampling filter bags 242), and the filter rods 22 not only increase the stability of the bottom drag rack, but also form a sampling cage structure similar to a mesh cage between the filter rods 22 and the bottom drag rack.

[0051] Meanwhile, triangular baffles 26 are fixedly connected in the U-shaped drag rack portions 21.

[0052] During operation, when the entire device is dragged on the seabed, part of the large block of sediment enters the relatively closed space formed by the U-shaped drag rack portions 21-filter rods 22-triangular baffles 26, and the large block of material such as seabed ore is collected and sampled during sampling.

[0053] During actual operation, according to the existing roller installation method, rollers are installed on both sides of the lower end of the side wall of the U-shaped drag rack portion 21, so that the entire sampling mechanism rolls on the seabed during sampling by the unmanned boat 3.

[0054] Embodiment 3

[0055] As shown in Figures 1-4 , this embodiment is based on the structure of embodiment 2, and the seabed sediment sampling mechanism 2 further includes a rope lowering structure 1 installed at the tail of the unmanned boat 3 for lowering the sampling structure.

[0056] The rope lowering structure 1 lowers the sampling structure when the unmanned boat 3 reaches the designated area.

[0057] Specifically, the rope lowering structure 1 includes fixed supports 11 (the cross-sectional shape is L-shaped structure) arranged at intervals on both sides, which are fixedly installed on the unmanned boat 3 (specifically at the tail). Meanwhile, the fixed supports 11 are rotatably connected with a cable releasing shaft 12, and two strands of cable releasing lines 13 are wound on the cable releasing shaft 12 (respectively hanging the U-shaped drag rack portions 21, in this way, the stability of the sampling structure during lowering and lifting is increased); the cable releasing lines 13 are hung on the bottom drag rack.

[0058] Meanwhile, the fixed supports 11 are provided with a motor 15 for driving the rotation of the cable releasing shaft 12. Specifically, the motor 15 is fixedly installed on the fixed support 11, and the output shaft is fixedly installed on the cable releasing shaft 12, which is the same as the existing method.

[0059] Meanwhile, in order to further provide the stability of the lifting and lowering sampling structure, V-shaped ropes 14 are fixedly connected on both sides of the front and back of the bottom drag rack (i.e. each U-shaped drag rack portion 21 is hung by an inverted V-shaped rope 14), and the bifurcated parts of the two ends of the V-shaped rope 14 are fixed on both sides of the bottom drag rack. Meanwhile, the cable releasing lines 13 are fixed at the center of the V-shaped rope 14. In this way, the balance of the sampling structure is maintained.

[0060] Correspondingly, the two ends of the U-shaped bracket 21 are respectively fixedly connected to the anchor head 141 of the anchor V-shaped rope 14.

[0061] During operation, once the unmanned surface vessel 3 reaches a specific area, the motor 15 activates and drives the sampling structure to descend. The rope lowering structure 1, designed as described above, ensures a smooth descent of the sampling structure, maintaining its stable posture once it reaches the seabed. After the unmanned surface vessel 3 tows the structure for a distance, a large amount of seabed sediment, such as sand and gravel, enters the sampling filter bag 242 for sampling. The motor 15 then drives the bag to be pulled out of the water.

[0062] Under normal circumstances, since the sampling structure is located on the outer side of the stern of the unmanned vessel 3, it can be lowered into the water without human intervention.

[0063] Example 4

[0064] like Figures 1-4 As shown, this embodiment is based on the structure of embodiment 3, and has the same structure and method as the existing unmanned control motor 15 and unmanned boat 3. The working components such as motor 15 are the same as those of unmanned boat 3 and can be remotely controlled.

[0065] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An unmanned marine environmental monitoring sampling craft, characterized in that, The unmanned boat is provided with a seabed sediment sampling mechanism at the tail thereof; The seabed sediment sampling mechanism comprises a sampling structure lowered to the seabed for sampling, and the sampling structure comprises a sampling frame provided with a plurality of sampling filter bag structures, and the sediment is collected in the sampling filter bag structures during sampling; the sampling filter bag structure comprises a sampling filter bag, and a filter bag opening part ring seat fixedly connected to the sampling filter bag is installed on the sampling frame. The sampling structure further comprises a bottom tow frame fixedly installed on the sampling frame, and a plurality of filter blocking rods are fixedly connected in the bottom tow frame.

2. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 1, characterized in that, The seabed sediment sampling mechanism further comprises a rope lowering structure installed at the tail of the unmanned boat for lowering the sampling structure; The sampling structure is hung on the rope lowering structure, and the sampling structure is lowered through the rope lowering structure during sampling.

3. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 2, characterized in that, The rope lowering structure comprises fixed supports arranged at intervals on both sides and fixedly installed on the unmanned boat; A cable releasing shaft is rotatably connected between the fixed supports, and two strands of cable releasing lines are wound on the cable releasing shaft; the cable releasing lines are hung on the bottom tow frame; An electric motor is installed on the fixed support for driving the cable releasing shaft to rotate.

4. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 3, characterized in that, V-shaped ropes are fixedly connected to the front and rear sides of the bottom tow frame, and the two ends of the V-shaped ropes are fixed to the two sides of the bottom tow frame, respectively. The cable releasing lines are fixed to the central part of the V-shaped ropes.

5. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 4, characterized in that, The bottom tow frame comprises U-shaped tow frame parts arranged at intervals in front and back, and anchor column heads for anchoring the V-shaped ropes are fixedly connected to the two ends of the U-shaped tow frame parts, respectively.

6. The unmanned marine environmental monitoring sampling craft of claim 5, wherein, The sampling frame is arranged in a downward inclination; the U-shaped tow frame parts are fixedly connected to the front and rear side walls of the sampling frame, respectively; The sampling frame is a frame-shaped structure frame.

7. The unmanned marine environmental monitoring sampling craft of claim 6, wherein, A shovel plate is fixedly connected to the rear end of the sampling frame for shoveling the sediment.

8. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 6, characterized in that, A plurality of mounting holes are formed in the sampling frame, and the filter bag opening part ring seat is fixedly connected to the top of the mounting hole.

9. The unmanned marine vehicle for monitoring and sampling of the marine environment according to claim 6, characterized in that, A triangular baffle is fixedly connected in the U-shaped tow frame part.

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