A comprehensive sample collection device for a remotely controlled unmanned boat in the intertidal zone

Abstract

The invention discloses a remote-controlled unmanned boat tidal flat comprehensive sample collection device, which belongs to the technical field of remote-controlled unmanned boats. By means of a sampling mechanism and an excavating mechanism, when the water level is low, the excavating drill bit is lowered to leave holes on the tidal flat surface. Under the action of gravity-driven water flow and distribution, water on other flat positions will fill the deep depression area and flow into the hole produced by the excavating drill bit. At this time, a sampling tube that descends together with the excavating drill bit can be extended into the hole to extract water samples in the hole, thereby avoiding the sampling tube from being directly inserted into the tidal flat bed with the lifting and lowering, thereby achieving the purpose of reducing the suction of soft mud or sandy mud during the sampling process, reducing the occurrence of particles in the soft mud and sandy mud entering the impeller pump with the water flow, and improving the service life of the impeller pump. The sample sucked by the impeller pump is injected into the storage cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of remotely controlled unmanned boats, and particularly to a comprehensive sample collection device for remotely controlled unmanned boats in tidal flats. Background Art

[0002] A remotely controlled unmanned boat is a watercraft that is remotely controlled through media such as radio. Remotely controlled unmanned boats play an important role in professional fields such as water quality monitoring, pollution prevention and control, water depth and geomorphology measurement, water conservancy parameter investigation, surface garbage cleaning, facility inspection, ocean science research, water surveillance, and emergency rescue;

[0003] When using a remotely controlled unmanned boat for sampling in water quality monitoring and pollution prevention and control, compared with the traditional shore sampling method, the remotely controlled unmanned boat can quickly and accurately reach preset sampling points, such as the center of a water area, a reef group, an aquatic plant growth area, etc., and sample according to a preset program, especially suitable for tidal flat areas where it is difficult for staff to reach and the sampling environment is relatively harsh;

[0004] However, in the actual use process, since the tidal flat is a tidally inundated area between the high tide level and the low tide level of the coastal spring tide, under the action of tides, the upper part of the tidal flat is often exposed above the water surface while the lower part is often submerged by water, which results in a certain water level drop at different times at the same sampling point. When the water level is low, the sampling pipeline of the existing remotely controlled unmanned boat is easily inserted into the soft mud or sandy mud carried by the tides. Since the suction required for sampling is generally provided by a water pump, the particles in the soft mud and sandy mud will enter the water pump with the water flow and wear the impeller during the operation of the water pump, which may cause damage to the impeller. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that since the tidal flat is a tidally inundated area between the high tide level and the low tide level of the coastal spring tide, under the action of tides, the upper part of the tidal flat is often exposed above the water surface while the lower part is often submerged by water, which results in a certain water level drop at different times at the same sampling point. When the water level is low, the sampling pipeline of the existing remotely controlled unmanned boat is easily inserted into the soft mud or sandy mud carried by the tides. Since the suction required for sampling is generally provided by a water pump, the particles in the soft mud and sandy mud will enter the water pump with the water flow and wear the impeller during the operation of the water pump, which may cause damage to the impeller, and to propose a comprehensive sample collection device for remotely controlled unmanned boats in tidal flats.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: a comprehensive sample collection device for remotely controlled unmanned boats in tidal flats:

[0007] It includes a remotely controlled unmanned boat body that travels on the tidal flat water surface. A combined cavity is opened on the remotely controlled unmanned boat body, and a housing is installed in the combined cavity. A sampling mechanism is arranged inside the housing. The sampling mechanism includes a vane pump installed in the housing and a conduit arranged below the vane pump. A liftable sampling tube is arranged in the conduit. The water outlet end of the vane pump is connected to a storage cavity;

[0008] A receiving cavity penetrating the combined cavity is arranged at the bottom of the housing. The conduit is arranged in the receiving cavity. An excavation mechanism is also arranged in the receiving cavity. The excavation mechanism includes a liftable excavation drill bit. When the excavation drill bit descends, holes are left on the tidal flat;

[0009] A rotating mechanism is arranged in the middle of the sampling tube. The rotating mechanism includes an internally threaded sleeve rod arranged in the middle of the sampling tube. The bottom of the internally threaded sleeve rod is connected to the excavation drill bit. When the excavation drill bit descends, the sampling tube can extend into the hole to extract samples, and the samples are sucked by the vane pump and injected into the storage cavity.

[0010] As a further description of the above-mentioned remotely controlled unmanned boat tidal flat comprehensive sample collection device:

[0011] The excavation mechanism further includes a telescopic hydraulic push rod arranged in the receiving cavity and a mounting bracket arranged at the extended end of the hydraulic push rod. The mounting seat is rotatably embedded in a plurality of mounting brackets, and the excavation drill bit is installed on the mounting seat. When the hydraulic push rod expands and contracts, the excavation drill bit rises and falls accordingly.

[0012] As a further description of the above-mentioned remotely controlled unmanned boat tidal flat comprehensive sample collection device:

[0013] The rotating mechanism further includes a fixed bracket arranged on the inner wall of the conduit. A threaded rod is fixedly installed on the fixed bracket, and the internally threaded sleeve rod is sleeved on the threaded rod. The inner wall of the internally threaded sleeve rod meshes with the threaded rod;

[0014] The bottom end of the internally threaded sleeve rod is connected to the mounting seat. When the mounting seat descends, it drives the internally threaded sleeve rod to move and rotate on the surface of the threaded rod, so that the excavation drill bit rotates and excavates holes while descending.

[0015] As a further description of the above-mentioned remotely controlled unmanned boat tidal flat comprehensive sample collection device:

[0016] A plurality of first chutes are vertically opened on the inner wall of the conduit, and a plurality of first sliders that can be embedded in the first chutes are arranged on the outer wall of the sampling tube;

[0017] A limiting ring is arranged in the middle of the sampling tube, and the internally threaded sleeve rod is rotatably embedded in the limiting ring.

[0018] As a further description of the above-mentioned remotely controlled unmanned boat tidal flat comprehensive sample collection device:

[0019] The inner wall of the mounting base is provided with connecting support rods, and the middle part of the connecting support rods is connected to the internally threaded sleeve rod;

[0020] A collapse prevention mechanism is arranged around the internally threaded sleeve rod. The collapse prevention mechanism includes a plurality of support plates arranged around the internally threaded sleeve rod and a second sliding groove opened on the connecting support rod. A second sliding block is slidably embedded in the second sliding groove, and a plug rod is connected to the top of the second sliding block. The top of the plug rod is connected to the support plate.

[0021] As a further description of the above-mentioned technology for a remote-controlled unmanned ship beach comprehensive sample collection device:

[0022] The position of the support plate is adjusted by an adjustment mechanism. The adjustment mechanism includes a mounting groove opened at the bottom of the internally threaded sleeve rod, a connecting member rotatably embedded in the mounting groove, and a turntable rotatably embedded in the mounting base. The surface of the turntable is provided with guiding grooves having the same number as the plug rods, and the plug rods penetrate through the guiding grooves and are in contact with the inner wall of the guiding grooves;

[0023] When the turntable rotates, the plug rods are pushed by the guiding grooves, so that the plug rods drive the second sliding blocks to horizontally move along the length direction of the second sliding groove.

[0024] As a further description of the above-mentioned technology for a remote-controlled unmanned ship beach comprehensive sample collection device:

[0025] An arc-shaped groove is opened on the surface of the internally threaded sleeve rod. A clamping block is arranged on the surface of the connecting member and penetrates through the arc-shaped groove. A clamping groove mutually fitted with the clamping block is opened on the inner side of the turntable. When the connecting member drives the turntable to rotate through the cooperation of the clamping block and the clamping groove, the clamping block moves in the arc-shaped groove without driving the internally threaded sleeve rod to rotate.

[0026] As a further description of the above-mentioned technology for a remote-controlled unmanned ship beach comprehensive sample collection device:

[0027] The adjustment mechanism further includes a mounting chamber opened in the middle of the excavation drill bit. A sealing ring is arranged at the top of the mounting chamber and a power source is arranged inside. The output end of the power source penetrates through the sealing ring and is connected to the connecting member.

[0028] As a further description of the above-mentioned technology for a remote-controlled unmanned ship beach comprehensive sample collection device:

[0029] A blocking mechanism is connected between adjacent support plates. The blocking mechanism includes connecting shafts rotatably arranged on both sides of the support plates and a connecting rod arranged between adjacent two support plates. A rubber strip is connected between the connecting rod and the connecting shafts on both sides. The rubber strip can be stretched and deformed and through holes are opened on the surface thereof.

[0030] As a further description of the above-mentioned technology for a remote-controlled unmanned ship beach comprehensive sample collection device:

[0031] The blocking mechanism also includes a plurality of mounting blocks arranged on the mounting seat, the mounting blocks are provided with guide rails and the inner wall of the guide rails is provided with guide rods, a movable block is slidably embedded in the guide rails and a spring is wound around the guide rods, and the two ends of the spring are respectively connected to the movable block and the inner wall of the guide rail;

[0032] The connecting rod is installed on the movable block and passes through the top of the guide rail;

[0033] A plurality of guide rails are connected to each other through a combination ring, and the combination ring is sleeved and installed on the surface of the internal thread sleeve rod.

[0034] In summary, due to the use of the above-mentioned technology, a remote-controlled unmanned boat tidal flat comprehensive sample collection device has the following beneficial effects:

[0035] 1. Through the sampling mechanism and excavation mechanism, when the water level is low, the excavation drill bit is lowered and leaves holes on the surface of the tidal flat. Under the action of gravity-driven water flow and distribution, water on other flat positions will fill the deep depression area and flow into the hole created by the excavation drill bit. At this time, the sampling tube that descends with the excavation drill bit can be inserted into the hole and extract the water sample in the hole, thereby avoiding the sampling tube from being directly inserted into the tidal flat bed with the lifting and lowering, achieving the purpose of reducing the suction of soft mud or sand mud during the sampling process, reducing the occurrence of particles in the soft mud and sand mud entering the impeller pump with the water flow, and improving the service life of the impeller pump. The sample sucked by the impeller pump is injected into the storage chamber;

[0036] 2. Through the adjustment mechanism and anti-collapse mechanism, when the excavation drill bit completes the drilling operation, the second slider can slide under the restriction of the second slide groove and drive the support plate to move through the insertion rod. Multiple support plates can be unfolded. When the hole collapses, the support plate can block and support the mud and sand, stabilize the inner wall of the hole, and reduce the sampling area of ​​mud and sand close to the center of the equipment. After the sampling operation is completed, the second slider moves in the opposite direction to drive multiple support plates to close together, and retract them into the catheter together with the internal threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the three-dimensional structure of a remote-controlled unmanned boat tidal flat comprehensive sample collection device is shown;

[0038] Figure 2 A schematic diagram of the front cross-sectional structure of a remote-controlled unmanned boat tidal flat comprehensive sample collection device is shown;

[0039] Figure 3 A schematic diagram of the front cross-sectional structure of the sampling mechanism in a stored state is shown;

[0040] Figure 4 A schematic diagram of the three-dimensional cross-sectional structure of the sampling mechanism and the rotating mechanism is shown;

[0041] Figure 5Shows Figure 4 The enlarged structural schematic diagram of part A in

[0042] Figure 6 Shows Figure 4 The enlarged structural schematic diagram of part B in

[0043] Figure 7 Shows the schematic diagram of the active state where the excavation mechanism sucks samples through the sampling mechanism after inserting into the tidal flat;

[0044] Figure 8 Shows Figure 7 The enlarged structural schematic diagram of part C in

[0045] Figure 9 Shows the partial three-dimensional sectional structural schematic diagram of the anti-collapse mechanism;

[0046] Figure 10 Shows the three-dimensional structural schematic diagram of the connecting piece and the turntable;

[0047] Figure 11 Shows the three-dimensional structural schematic diagram of the anti-collapse mechanism in the closed state;

[0048] Figure 12 Shows the three-dimensional structural schematic diagram of the anti-collapse mechanism in the deployed state;

[0049] Figure 13 Shows the three-dimensional structural schematic diagram of the deployed anti-collapse mechanism and the barrier mechanism;

[0050] Figure 14 Shows Figure 13 The enlarged structural schematic diagram of part D in

[0051] Figure 15 Shows the partial three-dimensional structural schematic diagram of the barrier mechanism;

[0052] Figure 16 Shows the top-view sectional structural schematic diagram of the rubber strip in the stretched and extended state;

[0053] Figure 17 Shows the top-view sectional structural schematic diagram of the rubber strip in the reset and contracted state;

[0054] Figure 18 Shows Figure 17 The enlarged structural schematic diagram of part E in

[0055] Legend:

[0056] 10. Remote control unmanned boat body; 11. Combined cavity; 12. Shell; 121. Storage cavity;

[0057] 20. Sampling mechanism; 21. Impeller pump; 22. Storage chamber; 23. Conduit; 231. First slide groove; 24. Sampling tube; 241. First slide block;

[0058] 30. Excavation mechanism; 31. Hydraulic push rod; 32. Mounting frame; 33. Mounting seat; 34. Excavation drill bit;

[0059] 40. Rotating mechanism; 41. Fixed frame; 42. Threaded rod; 43. Internally threaded sleeve rod; 431. Arc groove; 44. Limiting ring; 45. Connecting support rod;

[0060] 50. Adjustment mechanism; 51. Installation chamber; 52. Motor; 53. Sealing ring; 54. Installation groove; 55. Connector; 551. Block; 56. Turntable; 561. Slot; 57. Guide groove;

[0061] 60. Anti-collapse mechanism; 61. Second slide groove; 62. Second slide block; 63. Insertion rod; 64. Support plate;

[0062] 70. Blocking mechanism; 71. Rubber strip; 72. Mounting block; 73. Guide rail; 731. Combination ring; 74. Guide rod; 75. Movable block; 76. Spring; 77. Connecting rod; 78. Connecting shaft. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology in the embodiments of the present invention, a remote-controlled unmanned boat tidal flat comprehensive sample collection device. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0064] In order to solve the problem that the tidal flat is located in the tidal zone between the high tide and the low tide of the coastal area, the upper part of the tidal flat is often exposed to the water surface while the lower part is often submerged under the action of the tide, which leads to a certain difference in water level at the same sampling point at different times. When the water level is low, the sampling pipeline of the existing remote-controlled unmanned boat is easily inserted into the soft mud or sandy mud brought by the tide. Since the suction force required for sampling is generally provided by a water pump, the particles in the soft mud and sandy mud will enter the water pump with the water flow and wear the impeller during the operation of the water pump, which may cause damage to the impeller. The present invention proposes a remote-controlled unmanned boat tidal flat comprehensive sample collection device, such as Figure 1 - Figure 18 As shown:

[0065] The invention comprises a remote-controlled unmanned boat body 10 traveling on a tidal flat water surface, a combination chamber 11 is provided on the remote-controlled unmanned boat body 10, a shell 12 is installed in the combination chamber 11, a sampling mechanism 20 is arranged inside the shell 12, the sampling mechanism 20 comprises a vane pump 21 installed in the shell 12 and a conduit 23 arranged below the vane pump 21, a sampling tube 24 which can be raised and lowered is arranged in the conduit 23, and a water outlet end of the vane pump 21 is connected to a storage chamber 22;

[0066] A storage chamber 121 that penetrates the combined chamber 11 is provided at the bottom of the shell 12, and a conduit 23 is provided in the storage chamber 121. When the remote-controlled unmanned boat body 10 moves to the sampling point, if the water level is high at this time, the impeller pump 21 can be directly started, and the sample is directly sucked in through the storage chamber 121, and after passing through the impeller pump 21, enters the storage chamber 22 for storage.

[0067] The storage chamber 121 is also provided with an excavation mechanism 30, which includes an elevating excavation drill bit 34, and the excavation drill bit 34 leaves a hole on the beach when it descends;

[0068] A rotating mechanism 40 is provided in the middle of the sampling tube 24. The rotating mechanism 40 includes an internally threaded sleeve rod 43 provided in the middle of the sampling tube 24. The bottom of the internally threaded sleeve rod 43 is connected to the excavation drill bit 34. When the water level is low, the excavation drill bit 34 is lowered to leave a hole on the surface of the beach. Under the action of gravity-driven water flow and distribution, water on other flat positions will fill the deep depression area and flow into the hole produced by the excavation drill bit 34. At this time, the sampling tube 24 that descends together with the excavation drill bit 34 can extend into the hole and extract the water sample in the hole, thereby avoiding the sampling tube 24 from being directly inserted into the beach bed with the lifting and lowering, so as to reduce the suction of soft mud or sand mud during the sampling process, reduce the occurrence of particles in the soft mud and sand mud entering the impeller pump 21 with the water flow, and improve the service life of the impeller pump 21. The sample sucked by the impeller pump 21 is injected into the storage chamber 22;

[0069] After the sample collection is completed, the excavation drill bit 34 rises and moves out of the hole, while the internal threaded sleeve rod 43 and the sampling tube 24 are retracted into the guide tube 23, so as to prevent the remote control unmanned boat body 10 from contacting and damaging the mudflat bottom during the driving process and destroying the driving stability of the remote control unmanned boat body 10. The remote control unmanned boat body 10 carries the sample to the shore staff to complete the sampling;

[0070] At high tide, due to the effect of the tide, the water body will be subjected to greater gravitational force, thereby generating greater fluctuations and forming larger waves. At this time, even if the water level at the sampling point is high and there is no need for the excavation drill bit 34 to drill a hole in the mudflat bottom bed, the excavation drill bit 34 can still be lowered and inserted into the mudflat bottom bed to achieve the purpose of stabilizing the hull and ensure the stability of the sampling process.

[0071] In order to enable the excavation drill bit 34 to be raised and lowered, as Figure 3As shown, the excavation mechanism 30 also includes a hydraulic push rod 31 arranged in the storage cavity 121 and a mounting frame 32 arranged on the extended end of the hydraulic push rod 31. The mounting seat 33 is rotatably embedded in the multiple mounting frames 32, and the excavation drill bit 34 is installed on the mounting seat 33. By starting the hydraulic push rod 31, the hydraulic push rod 31 is extended and the mounting seat 33 is driven to descend through the mounting frame 32. The excavation drill bit 34 installed on the mounting seat 33 is then lowered to be inserted into the tidal flat bottom bed and complete the drilling.

[0072] In the actual operation process, since the material composition of the tidal flat bottom is complex, including rocks, beaches, mud flats and other types, in order to make the excavation drill bit 34 more easily inserted into the tidal flat bottom and produce holes, such as Figure 4 , Figure 5 As shown, the excavation drill bit 34 can also be rotated by a rotating mechanism 40, and the rotating mechanism 40 also includes a fixing frame 41 arranged on the inner wall of the guide tube 23, a threaded rod 42 is fixedly mounted on the fixing frame 41, and an internal threaded sleeve rod 43 is sleeved on the threaded rod 42, and the inner wall of the internal threaded sleeve rod 43 and the threaded rod 42 are meshed with each other;

[0073] The bottom end of the internal threaded sleeve rod 43 is connected to the mounting seat 33. When the mounting seat 33 descends, the internal threaded sleeve rod 43 is driven to move and rotate on the surface of the threaded rod 42, so that the excavation drill bit 34 rotates and excavates the hole while descending;

[0074] When the excavation drill bit 34 descends, the excavation drill bit 34 pulls the internal threaded sleeve rod 43 through the mounting seat 33, and the internal threaded sleeve rod 43 can drive the sampling tube 24 to move inside the catheter 23 and insert into the hole for sampling. While the internal threaded sleeve rod 43 moves on the surface of the threaded rod 42, the internal threaded sleeve rod 43 can rotate under the action of the thread, so that the internal threaded sleeve rod 43 drives the excavation drill bit 34 to rotate and insert into the tidal flat bottom bed through the mounting seat 33. When rotating and inserting, the contact mode between the excavation drill bit 34 and the tidal flat bottom bed changes from static friction to dynamic friction, thereby achieving the purpose of reducing friction resistance and making drilling easier.

[0075] Furthermore, the surface of the excavation drill bit 34 is provided with spiral concave patterns, such as Figure 1 and Figure 13 As shown, the texture can reduce the direct contact area between the excavation drill bit 34 and the hole wall, thereby reducing friction, and during the drilling process, the mud and sand are discharged through the concave texture to prevent the mud and sand from accumulating in the hole;

[0076] When drilling a hole, the excavation drill bit 34 can also leave spiral lines on the hole wall under the effect of the spiral concave lines, so as to improve the stability of the inner wall of the hole and reduce the occurrence of hole collapse;

[0077] The excavation drill bit 34 will also exert pressure on the bottom bed during the drilling process. Under the action of the displacement of soft mud and sand mud, an annular bulge will be formed around the excavation drill bit 34, such as Figure 7 As shown, the natural barrier formed by the ridges can block the large particles of impurities carried by the water as it flows into the holes.

[0078] In order to prevent the rotation of the internal threaded sleeve 43 from affecting the lifting and lowering of the sampling tube 24, Figure 5 As shown, a plurality of first slide grooves 231 are vertically opened on the inner wall of the conduit 23, and a plurality of first sliding blocks 241 which can be embedded in the first slide grooves 231 are arranged on the outer wall of the sampling tube 24;

[0079] A limit ring 44 is provided in the middle of the sampling tube 24, and the internal threaded sleeve 43 is rotatably embedded in the limit ring 44. Through the cooperation of the first slider 241 and the first slide groove 231, the sampling tube 24 can only be lifted and lowered inside the catheter 23 but cannot be rotated. Through the cooperation of the limit ring 44, the internal threaded sleeve 43 can rotate under the restriction of the limit ring 44 and can drive the sampling tube 24 to be lifted and lowered synchronously.

[0080] Since the material composition of the tidal flat bottom is complex, it is difficult to ensure the stability of the sampling operation by relying solely on the spiral pattern left by the excavation drill bit 34 on the inner wall of the hole. Therefore, a connecting rod 45 is provided on the inner wall of the mounting seat 33, and the middle part of the connecting rod 45 is connected to the internal threaded sleeve rod 43;

[0081] An anti-collapse mechanism 60 is arranged around the internal thread sleeve 43, and the anti-collapse mechanism 60 includes a plurality of support plates 64 arranged around the internal thread sleeve 43 and a second slide groove 61 provided on the connecting support rod 45, a second slider 62 is slidably embedded in the second slide groove 61, and a plug rod 63 is connected to the top of the second slider 62, and the top of the plug rod 63 is connected to the support plate 64;

[0082] When the excavation drill bit 34 completes the drilling operation, the second slide block 62 can slide under the restriction of the second slide groove 61 and drive the support plate 64 to move through the insertion rod 63. Multiple support plates 64 can be deployed. When the hole collapses, the support plates 64 can block and support the mud and sand, stabilize the inner wall of the hole, and reduce the sampling area of ​​mud and sand close to the center of the equipment;

[0083] When the sampling operation is completed, the second slider 62 moves in the reverse direction to drive the plurality of support plates 64 to close together and retract them into the conduit 23 together with the internal threaded sleeve rod 43 .

[0084] In order to be able to control the opening and closing of the support plate 64, as Figure 6 , Figures 8 - 12As shown, the position of the support plate 64 is adjusted by the adjusting mechanism 50. The adjusting mechanism 50 includes an installation groove 54 opened at the bottom of the internally threaded sleeve rod 43, a connecting member 55 rotatably embedded in the installation groove 54, and a turntable 56 rotatably embedded on the mounting seat 33. The surface of the turntable 56 is provided with guiding grooves 57 having the same number as the number of the inserting rods 63, and the inserting rods 63 penetrate through the guiding grooves 57 and are in contact with the inner wall of the guiding grooves 57;

[0085] Meanwhile, an arc-shaped groove 431 is opened on the surface of the internally threaded sleeve rod 43, a clamping block 551 penetrating through the arc-shaped groove 431 is arranged on the surface of the connecting member 55, and a clamping groove 561 mutually engaged with the clamping block 551 is opened on the inner side of the turntable 56. By rotating the connecting member 55, the connecting member 55 drives the turntable 56 to rotate through the cooperation of the clamping block 551 and the clamping groove 561. The clamping block 551 moves in the arc-shaped groove 431, so that the internally threaded sleeve rod 43 will not be affected. When the turntable 56 rotates, it pushes the inserting rod 63 through the guiding groove 57, and the inserting rod 63 drives the second slider 62 to horizontally move along the length direction of the second sliding groove 61, so as to achieve the purpose of adjusting the position of the support plate 64.

[0086] Among them, the adjusting mechanism 50 further includes an installation chamber 51 opened in the middle of the excavation drill bit 34. A sealing ring 53 for preventing water seepage is arranged at the top of the installation chamber 51. A power source is arranged inside the installation chamber 51. The power source is a motor 52, with the model RS550, which is a 24V DC motor with low speed and high torque and is remotely controlled through a control unit. The output end of the motor 52 penetrates through the sealing ring 53 and is connected to the connecting member 55.

[0087] In order to further improve the effect of the support plate 64 in blocking the collapsed sediment, as Figures 14 - 18 shown, a blocking mechanism 70 is connected between adjacent support plates 64. The blocking mechanism 70 includes connecting shafts 78 rotatably arranged on both sides of the support plate 64 and a connecting rod 77 arranged between adjacent two support plates 64. A rubber strip 71 is connected between the connecting rod 77 and the connecting shafts 78 on both sides. The rubber strip 71 can be stretched and deformed and is provided with through holes on its surface;

[0088] When the support plate 64 performs the unfolding action, it can cooperate with the connecting shafts 78 and the connecting rod 77 to pull the rubber strip 71 and make it elastically deformed. The stretched and extended rubber strip 71 can fill the gap between adjacent support plates 64, so as to achieve the purpose of further improving the blocking ability of the sediment.

[0089] Meanwhile, in order to enable the support plate 64 to guide the rubber strip 71 to contract inward when closed, so that it can rise together with the support plate 64 and the internally threaded sleeve rod 43 and be retracted into the conduit 23, the blocking mechanism 70 further includes a plurality of mounting blocks 72 provided on the mounting base 33. A guide rail 73 is provided on the mounting block 72, and a guide rod 74 is provided on the inner wall of the guide rail 73. A movable block 75 is slidably embedded in the guide rail 73, and a spring 76 is wound around the guide rod 74. Two ends of the spring 76 are respectively connected to the movable block 75 and the inner wall of the guide rail 73;

[0090] The connecting rod 77 is installed on the movable block 75 and penetrates through the top of the guide rail 73;

[0091] A plurality of guide rails 73 are connected to each other through a combination ring 731, and the combination ring 731 is sleeved on the surface of the internally threaded sleeve rod 43;

[0092] During the process of the support plate 64 unfolding and pulling the rubber strip 71 to generate elastic deformation, the rubber strip 71 will also push the connecting rod 77 outward, causing the connecting rod 77 to drive the movable block 75 to horizontally move along the linear direction of the guide rail 73, and when moving, cooperate with the guide rod 74 to pull the spring 76 and cause it to generate elastic deformation;

[0093] When the support plate 64 is closed, under the pulling of the elastic deformation recovery of the spring 76, the connecting rod 77 is reset. The connecting rod 77 passes through the gap between the two support plates 64 and approaches the internally threaded sleeve rod 43, so that while the elastic deformation of the rubber strip 71 is restored, it is recovered inward of the support plate 64 together with the connecting rod 77, so as to ensure that the rubber strip 71 is located in the cavity between the support plate 64 and the internally threaded sleeve rod 43 after the support plate 64 is folded.

[0094] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention. A remote control unmanned ship beach comprehensive sample collection device and its inventive concept

Claims

1. A remote-controlled unmanned ship beach comprehensive sample collection device, comprising a remote-controlled unmanned ship body (10) traveling on the beach water surface. A combined cavity (11) is provided on the remote-controlled unmanned ship body (10), and a housing (12) is installed in the combined cavity (11). It is characterized in that, Inside the housing (12), a sampling mechanism (20) is provided. The sampling mechanism (20) includes a vane pump (21) installed inside the housing (12) and a conduit (23) provided below the vane pump (21). A liftable sampling tube (24) is arranged inside the conduit (23), and the water outlet end of the vane pump (21) is connected to a storage chamber (22). At the bottom of the housing (12), a storage chamber (121) penetrating the combined chamber (11) is provided. The conduit (23) is arranged inside the storage chamber (121), and an excavation mechanism (30) is also arranged inside the storage chamber (121). The excavation mechanism (30) includes a liftable excavation drill bit (34). When the excavation drill bit (34) descends, holes are left on the beach. A rotation mechanism (40) is arranged in the middle of the sampling tube (24). The rotation mechanism (40) includes an internally threaded sleeve rod (43) arranged in the middle of the sampling tube (24). The bottom of the internally threaded sleeve rod (43) is connected to the excavation drill bit (34). When the excavation drill bit (34) descends, the sampling tube (24) can extend into the hole to extract samples, and the samples are sucked by the vane pump (21) and injected into the storage chamber (22). A collapse prevention mechanism (60) is arranged around the internally threaded sleeve rod (43). The collapse prevention mechanism (60) includes a plurality of support plates (64) arranged around the internally threaded sleeve rod (43) and a second chute (61) arranged below the (64). The position of the support plate (64) is adjusted by an adjustment mechanism (50). The adjustment mechanism (50) includes a rotatable turntable (56). When the turntable (56) rotates, it guides the support plate (64) to horizontally move along the length direction of the second chute (61).

2. The comprehensive sample collection device for a remotely controlled unmanned boat in the intertidal zone according to claim 1, characterized in that, The excavation mechanism (30) further includes a telescopic hydraulic push rod (31) arranged inside the storage chamber (121) and a mounting bracket (32) arranged at the extended end of the hydraulic push rod (31). A mounting seat (33) is rotatably embedded in a plurality of mounting brackets (32), and the excavation drill bit (34) is installed on the mounting seat (33). When the hydraulic push rod (31) expands and contracts, the excavation drill bit (34) rises and falls accordingly.

3. The comprehensive sample collection device for the tidal flat of a remotely controlled unmanned boat according to claim 2, wherein The rotation mechanism (40) further includes a fixed bracket (41) arranged on the inner wall of the conduit (23). A threaded rod (42) is fixedly installed on the fixed bracket (41), and the internally threaded sleeve rod (43) is sleeved on the threaded rod (42). The inner wall of the internally threaded sleeve rod (43) meshes with the threaded rod (42). The bottom end of the internally threaded sleeve rod (43) is connected to the mounting seat (33). When the mounting seat (33) descends, it drives the internally threaded sleeve rod (43) to move and rotate on the surface of the threaded rod (42), so that the excavation drill bit (34) rotates and excavates the hole while descending.

4. The integrated sampling device for tidal flats of a remotely controlled unmanned boat according to claim 2, characterized in that, A plurality of first chutes (231) are vertically opened on the inner wall of the conduit (23), and a plurality of first sliders (241) that can be embedded in the first chutes (231) are arranged on the outer wall of the sampling tube (24). A limit ring (44) is arranged in the middle of the sampling tube (24), and the internally threaded sleeve rod (43) is rotatably embedded in the limit ring (44).

5. The integrated sample collection device for the tidal flat of a remotely controlled unmanned boat according to claim 2, characterized in that, A connecting support rod (45) is arranged on the inner wall of the mounting seat (33), and the middle of the connecting support rod (45) is connected to the internally threaded sleeve rod (43). The second sliding groove (61) is formed in the connecting support rod (45). A second sliding block (62) is slidably embedded in the second sliding groove (61), and a plug rod (63) is connected to the top of the second sliding block (62). The support plate (64) is connected to the top of the plug rod (63).

6. The integrated sample collection device for a remotely controlled unmanned boat in the intertidal zone according to claim 5, characterized in that, The adjusting mechanism (50) further includes a mounting groove (54) formed at the bottom of the internally threaded sleeve rod (43) and a connecting member (55) rotatably embedded in the mounting groove (54). The turntable (56) is rotatably embedded in the mounting seat (33). The surface of the turntable (56) is provided with guiding grooves (57) having the same number as the plug rods (63), and the plug rods (63) penetrate through the guiding grooves (57) and are in contact with the inner wall of the guiding grooves (57). When the turntable (56) rotates, the plug rod (63) is pushed through the guiding groove (57), so that the plug rod (63) drives the second sliding block (62) to horizontally move along the length direction of the second sliding groove (61).

7. A comprehensive sample collection device for a remote-controlled unmanned ship in the intertidal zone according to claim 6, characterized in that, An arc-shaped groove (431) is formed on the surface of the internally threaded sleeve rod (43). A clamping block (551) penetrating through the arc-shaped groove (431) is arranged on the surface of the connecting member (55). A clamping groove (561) mutually engaged with the clamping block (551) is formed inside the turntable (56). When the connecting member (55) drives the turntable (56) to rotate by the cooperation of the clamping block (551) and the clamping groove (561), the clamping block (551) moves in the arc-shaped groove (431) without driving the internally threaded sleeve rod (43) to rotate.

8. The comprehensive sampling device for tidal flats of a remotely controlled unmanned boat according to claim 6, characterized in that, The adjusting mechanism (50) further includes a mounting chamber (51) formed in the middle of the excavation drill bit (34). A sealing ring (53) is arranged at the top of the mounting chamber (51), and a power source is arranged inside. The output end of the power source penetrates through the sealing ring (53) and is connected to the connecting member (55).

9. The comprehensive sample collection device for the tidal flat of a remotely controlled unmanned boat according to claim 5, characterized in that, A blocking mechanism (70) is connected between adjacent support plates (64). The blocking mechanism (70) includes connecting shafts (78) rotatably arranged on both sides of the support plate (64) and a connecting rod (77) arranged between adjacent support plates (64). A rubber strip (71) is connected between the connecting rod (77) and the connecting shafts (78) on both sides. The rubber strip (71) can be stretched and deformed, and through holes are formed on its surface.

10. A comprehensive sample collection device for a remote-controlled unmanned boat in the intertidal zone according to claim 9, characterized in that, The blocking mechanism (70) further includes a plurality of mounting blocks (72) arranged on the mounting seat (33). Guide rails (73) are arranged on the mounting blocks (72), and guide rods (74) are arranged on the inner walls of the guide rails (73). A movable block (75) is slidably embedded in the guide rails (73), and a spring (76) is wound around the guide rod (74). Both ends of the spring (76) are respectively connected to the movable block (75) and the inner wall of the guide rail (73). The connecting rod (77) is installed on the movable block (75) and penetrates through the top of the guide rail (73). A plurality of the guide rails (73) are connected to each other through a combined ring (731), and the combined ring (731) is sleeved on the surface of the internally threaded sleeve rod (43).

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