An underwater vehicle with a collection device

Abstract

The present invention discloses an underwater vehicle technical field, specifically an underwater vehicle with a collecting device, comprising an underwater vehicle body, a connecting frame fixedly installed at the lower end of the underwater vehicle body, the lower end of the connecting frame fixedly connected to a protective box, the lower end of the protective box rotatably connected to a rotating chassis, the rotating chassis is driven by a motor shaft of a stepping motor fixedly installed in the protective box, the side surface of the rotating chassis is in an annular array and fixedly connected with a plurality of L-shaped brackets, the upper ends of the plurality of L-shaped brackets are all fixedly connected with a concave seat. The beneficial effect of the present invention is that when sampling, the underwater vehicle body first dives to the area to be sampled, so that a sampling tube is rotated to the bottom of the notch of the annular frame, and the transmission seat is driven to move upward by a driving mechanism, so that the collecting piston slides upward along the inner cavity of the sampling tube, so that a negative pressure is formed at the lower end of the inner cavity of the sampling tube, so that external water can enter the sampling tube to perform the sampling operation.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater vehicles, in particular to an underwater vehicle with a collecting device. Background Art

[0002] With the continuous development of the ocean by various countries, the underwater vehicle technology has developed rapidly. It is often used for terrain exploration, military detection, etc. Underwater vehicles are also widely used in some aquaculture, search and rescue, tourism, scientific research, etc. Some underwater vehicles are also used for underwater water sample collection operations. The existing underwater vehicle collection device is made of metal material, with a funnel-shaped bottom and a water filter located at the bottom of the funnel. There are problems such as small water filter and inconvenient sampling; and the existing underwater vehicle cannot dive at one time to sample and collect water samples at multiple depths and positions. After each collection, the underwater vehicle needs to float up to unload the water sample or directly replace it with a new collection vessel, and then dive to different depths or positions to collect water samples. This reciprocating operation greatly reduces the collection efficiency and is very inconvenient. Summary of the invention

[0003] The object of the present invention is to provide an underwater vehicle with a collecting device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an underwater vehicle with a collecting device, comprising an underwater vehicle body, a connecting frame fixedly installed at the lower end of the underwater vehicle body, the lower end of the connecting frame fixedly connected to a protective box, the lower end of the protective box is rotatably connected to a rotating chassis, the rotating chassis is driven by a motor shaft of a stepper motor fixedly installed in the protective box, the side surface of the rotating chassis is in a circular array and fixedly connected to a plurality of L-shaped brackets, the upper ends of the plurality of L-shaped brackets are fixedly connected to a concave seat, a sampling tube is installed in the concave seat, one side of the concave seat is thickened, and a contraction hole is provided on the inner side of the thickened side of the concave seat. The inner side of the unthickened side of the concave seat is fixedly connected with a fixed clamping block, and the outer side of the thickened side of the concave seat is installed with a clamping mechanism, and the clamping mechanism includes an outer sealing sleeve fixedly connected to the thickened side of the concave seat, and a round rod movably plugged into one end of the sealing sleeve, one end of the round rod is fixedly connected with a knob, and the other end of the round rod extends to the inner cavity of the sealing sleeve and is fixedly connected to the adjusting screw, one end of the adjusting screw passes through the concave seat and extends into the contraction groove and is rotatably connected to the movable clamping block through a pin shaft, the adjusting screw is threadedly connected to the concave seat, the movable clamping block is slidably connected to the contraction groove, and the movable clamping block and the fixed clamping block are clamped on the side of the sampling tube;

[0005] The lower end of the sampling tube is fixedly connected with an hourglass-shaped tube, the lower end of the hourglass-shaped tube is threadedly connected with a filter seat, the lower end of the filter seat is fixedly connected with a filter plate, the side of the sampling tube is fixedly connected with an L-shaped support plate, the upper end of the sampling tube is slidably connected with a piston rod, the lower end of the piston rod extends to the inner cavity of the sampling tube and is fixedly connected with the collecting piston, the upper end of the piston rod is fixedly sleeved with a transmission seat, the piston rod is slidably connected with the circular hole at the upper end of the sampling tube, the collecting piston is slidably connected with the side wall of the inner cavity of the sampling tube, the piston rod and the collecting piston are both penetrated from top to bottom with through holes, and a leak-proof mechanism is installed on the piston rod;

[0006] The anti-leakage mechanism includes a movable light rod inserted through the through hole, a sealing plug fixedly connected to the lower end of the movable light rod, a sealing spring and an annular block sequentially sleeved on the movable light rod from top to bottom, the annular block is fixedly connected to the movable light rod, the upper end of the movable light rod passes through the upper end of the L-shaped support plate and is fixedly connected to the spherical block, the movable light rod is slidably connected to the L-shaped support plate up and down, the lower end of the sealing spring abuts against the annular block, the upper end of the sealing spring abuts against the upper end of the L-shaped support plate, the movable light rod is slidably connected to the piston rod and the through hole of the collecting piston up and down, the sealing plug is made of rubber material, the sealing plug abuts against the inner cavity of the hourglass-shaped tube to form a seal, and a driving mechanism for sampling is installed on one side of the protection box.

[0007] Preferably, a plurality of connecting rods are fixedly connected to the side of the connecting frame in a circular array, a circular frame is sleeved on the outer side of the connecting rods, one end of the connecting rod away from the connecting frame is fixedly connected to the inner side of the circular frame, a notch is opened on one side of the circular frame, and the notch of the circular frame is arranged above the driving mechanism and the anti-leakage mechanism.

[0008] Preferably, an annular groove is provided on the side of the sampling tube, and the movable clamping block and the fixed clamping block are both engaged with the annular groove.

[0009] Preferably, a guide sealing groove is provided on one side of the protection box, and a limit groove is provided on the side of the guide sealing groove, and the driving mechanism includes a lifting screw rotatably installed at the upper end of the inner cavity of the protection box, the upper end of the lifting screw is driven by the output shaft of a waterproof motor fixedly installed at the upper end of the protection box, the lower end of the lifting screw is fixedly connected to a rotating shaft, the lower end of the rotating shaft passes through the lower end of the protection box and extends to the outside, the lower end of the rotating shaft is fixedly connected to a cleaning brush in an annular array, the cleaning brush is movably contacted with the lower end of the filter plate, a convex block is sleeved on the lifting screw, the convex portion of the convex block passes through the limit groove and is fixedly connected to the sealing baffle, and the outer side surface of the sealing baffle is fixedly connected to a push block.

[0010] Preferably, the lifting screw is threadedly connected to the convex block, the raised portion of the convex block is slidably connected to the limiting groove up and down, and the sealing baffle is slidably connected to the guide sealing groove up and down.

[0011] Compared with the prior art, the invention has the following advantages:

[0012] 1. When sampling, the underwater vehicle body first dives to the area to be sampled, rotates a sampling tube to the bottom of the notch of the annular frame, drives the transmission seat upward through the driving mechanism, and makes the collecting piston slide upward along the inner cavity of the sampling tube, so that negative pressure is formed at the lower end of the inner cavity of the sampling tube, so that external water can enter the sampling tube for sampling operation. After the sampling is completed, the leak-proof mechanism seals the thinner part of the inner cavity of the hourglass-shaped tube to prevent the sample water in the sampling tube from leaking, and at the same time prevents the external water from flowing into the sampling tube during the movement of the underwater vehicle body, which affects the quality of sampling.

[0013] 2. The filter plate is set to prevent angled debris in the water from entering the sampling tube, and prevent debris from clogging the hourglass-shaped tube. At the same time, the lifting screw drives the rotating shaft to rotate during the rotation of the lifting screw, and the rotating shaft drives the cleaning brush to rotate. During the rotation of the cleaning brush, it slides and contacts with the lower end of the filter plate, thereby cleaning the debris at the lower end of the filter plate, preventing the filter holes of the filter plate from being blocked, and allowing the filter plate to continue filtering.

[0014] 3. When sampling is completed, the spherical block at the upper end of the sampling tube is rotated to the lower end of the annular frame, so that the multiple spherical blocks are abutted against the lower end of the annular frame, so that the spherical block cannot move upward, and the movable light rod and the sealing plug cannot move upward, so that the sealing plug can be firmly inserted into the inner cavity of the hourglass-shaped tube, and the inner cavity of the hourglass-shaped tube is continuously sealed to prevent water from entering the sampling tube when no sampling is taking place, or to prevent the sample water in the sampling tube from leaking.

[0015] 4. The clamping mechanism can be easily installed and disassembled for the sampling tube, which greatly improves the work efficiency.

[0016] 5. When the sample water in the sampling tube needs to be discharged, first pull the movable polish rod upwards, and the movable polish rod drives the sealing plug to move upwards, so that the sealing plug loosens the seal on the hourglass-shaped tube. At this time, push the piston rod downwards, and the piston rod drives the collecting piston to slide downwards along the inner cavity of the sampling tube, thereby discharging the sample water in the inner cavity of the sampling tube downwards, and the water flows downwards along the hourglass-shaped tube and the filter seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the structure of an underwater vehicle with a collecting device according to the present invention;

[0018] Figure 2 It is a three-dimensional diagram of the structure of the collecting device of the present invention;

[0019] Figure 3 It is a cross-sectional view of the structure of the collecting device of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating chassis, L-shaped bracket and concave seat of the present invention;

[0021] Figure 5 It is a three-dimensional diagram of the structure of the concave seat, sampling tube, leak-proof mechanism and driving mechanism of the present invention;

[0022] Figure 6 It is an exploded view of the concave seat, the clamping mechanism and the sampling tube structure of the present invention;

[0023] Figure 7 This is an exploded view of the sampling tube, piston rod and leak-proof mechanism structure of the present invention;

[0024] Figure 8 It is an exploded view of the protection box and driving mechanism structure of the present invention.

[0025] In the figure: 1. underwater vehicle body; 11. connecting frame; 12. connecting rod; 13. annular frame; 14. protective box; 15. guide sealing groove; 16. limit groove; 2. rotating chassis; 21. L-shaped bracket; 22. concave seat; 23. contraction groove; 24. fixed clamping block; 3. sealing sleeve; 31. round rod; 32. knob; 33. adjusting screw; 34. movable clamping block; 4. sampling tube; 41. annular groove; 42. hourglass tube; 43. filter seat; 44. filter plate; 45. L-shaped support plate; 5. piston rod; 51. collecting piston; 52. transmission seat; 6. movable light rod; 61. sealing plug; 62. annular block; 63. sealing spring; 64. spherical block; 7. lifting screw; 71. rotating shaft; 72. cleaning brush; 8. convex block; 81. sealing baffle; 82. push block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 8The present invention provides a technical solution: an underwater vehicle with a collecting device, comprising an underwater vehicle body 1, a connecting frame 11 is fixedly installed at the lower end of the underwater vehicle body 1, the lower end of the connecting frame 11 is fixedly connected to a protective box 14, the lower end of the protective box 14 is rotatably connected to a rotating chassis 2, the rotating chassis 2 is driven by a motor shaft of a stepping motor fixedly installed in the protective box 14, a plurality of L-shaped brackets 21 are fixedly connected to the side of the rotating chassis 2 in a circular array, the upper ends of the plurality of L-shaped brackets 21 are fixedly connected to a concave seat 22, a sampling tube 4 is installed in the concave seat 22, and the lower end of the sampling tube 4 is in a The sampling tube 4 is in an open shape, with a circular hole passing through the upper end of the sampling tube 4, the lower end of the sampling tube 4 is fixedly connected with an hourglass-shaped tube 42, the lower end of the hourglass-shaped tube 42 is threadedly connected with a filter seat 43, the lower end of the filter seat 43 is fixedly connected with a filter plate 44, the side of the sampling tube 4 is fixedly connected with an L-shaped support plate 45, the upper end of the sampling tube 4 is slidably connected with a piston rod 5, the lower end of the piston rod 5 extends to the inner cavity of the sampling tube 4 and is fixedly connected with a collecting piston 51, the upper end of the piston rod 5 is fixedly sleeved with a transmission seat 52, a leak-proof mechanism is installed on the piston rod 5, and a driving mechanism for sampling is installed on one side of the protective box 14.

[0028] The model of the underwater vehicle body 1 can be selected according to one's own needs.

[0029] See also Figure 1 and Figure 2 The side of the connecting frame 11 is fixedly connected with a plurality of connecting rods 12 in an annular array, and an annular frame 13 is sleeved on the outer side of the connecting rod 12. One end of the connecting rod 12 away from the connecting frame 11 is fixedly connected to the inner side of the annular frame 13. A notch is opened on one side of the annular frame 13, so that one side of the annular frame 13 is broken, and the lower end of the notch of the annular frame 13 is sloped, and the notch of the annular frame 13 is arranged above the driving mechanism and the anti-leakage mechanism.

[0030] See also Figures 2 to 6 One side of the concave seat 22 is thickened, a shrinkage groove 23 is provided on the inner side of the thickened side of the concave seat 22, a fixed clamping block 24 is fixedly connected to the inner side of the non-thickened side of the concave seat 22, and a clamping mechanism is installed on the outer side of the thickened side of the concave seat 22.

[0031] The clamping mechanism includes an outer sealing sleeve 3 fixedly connected to the thickened side of the concave seat 22, and a round rod 31 movably inserted at one end of the sealing sleeve 3. A knob 32 is fixedly connected to one end of the round rod 31, and the other end of the round rod 31 extends to the inner cavity of the sealing sleeve 3 and is fixedly connected to an adjusting screw 33. One end of the adjusting screw 33 extends through the concave seat 22 to the contraction groove 23 and is rotatably connected to a movable clamping block 34 through a pin shaft. The adjusting screw 33 is threadedly connected to the concave seat 22, and the movable clamping block 34 is slidably connected to the contraction groove 23. The movable clamping block 34 and the fixed clamping block 24 are clamped on the side of the sampling tube 4.

[0032] By rotating the knob 32, the knob 32 drives the round rod 31 to rotate along one end of the sealing sleeve 3, and the round rod 31 drives the adjusting screw 33 to rotate. The adjusting screw 33 moves inward or outward along the concave seat 22. When the adjusting screw 33 rotates, it drives the pin shaft to rotate along the movable clamping block 34. The adjusting screw 33 drives the movable clamping block 34 to move outward or inward along the contraction groove 23 through the pin shaft, so that the movable clamping block 34 clamps or releases the sampling tube 4.

[0033] An annular groove 41 is formed on the side of the sampling tube 4 , and both the movable clamping block 34 and the fixed clamping block 24 are clamped in the annular groove 41 .

[0034] See also Figure 3 and Figure 7 The piston rod 5 is slidably connected to the circular hole at the upper end of the sampling tube 4, and the collecting piston 51 is slidably connected to the side wall of the inner cavity of the sampling tube 4. Both the piston rod 5 and the collecting piston 51 are penetrated from top to bottom with through holes.

[0035] The piston rod 5 moves upward along the circular hole, and the piston rod 5 drives the collecting piston 51 to move upward along the inner cavity of the sampling tube 4, so that a negative pressure is formed at the lower end of the inner cavity of the sampling tube 4, so that the external water is drawn into the inner cavity of the sampling tube 4 along the filter seat 43 and the hourglass-shaped tube 42, and the sampling operation is completed. The filter plate 44 is set to prevent angled debris in the water from entering the sampling tube 4, and at the same time prevent the debris from clogging the hourglass-shaped tube 42.

[0036] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 The anti-leakage mechanism includes a movable light rod 6 inserted into the through hole, a sealing plug 61 fixedly connected to the lower end of the movable light rod 6, a sealing spring 63 and an annular block 62 sequentially sleeved on the movable light rod 6 from top to bottom, the annular block 62 is fixedly connected to the movable light rod 6, the upper end of the movable light rod 6 passes through the upper end of the L-shaped support plate 45 and is fixedly connected to the spherical block 64, the movable light rod 6 is slidably connected to the L-shaped support plate 45 up and down, the lower end of the sealing spring 63 abuts against the annular block 62, the upper end of the sealing spring 63 abuts against the upper end of the L-shaped support plate 45, the movable light rod 6 is slidably connected to the through hole of the piston rod 5 and the collecting piston 51 up and down, the sealing plug 61 is made of rubber material, and the sealing plug 61 abuts against the inner cavity of the hourglass-shaped tube 42 to form a seal.

[0037] The upper end of the spherical block 64 abuts against the lower end of the annular frame 13, so that the spherical block 64 cannot move upward, and further the movable polished rod 6 and the sealing plug 61 cannot move upward, so that the sealing plug 61 can be firmly inserted into the inner cavity of the hourglass-shaped tube 42 to continuously seal the inner cavity of the hourglass-shaped tube 42;

[0038] When the spherical block 64 rotates to the notch of the annular frame 13 , the spherical block 64 is not in contact with the annular frame 13 , and the spherical block 64 can move upward freely.

[0039] The sealing spring 63 applies an elastic force to the annular block 62, and the annular block 62 moves downward under the action of the elastic force of the sealing spring 63, and the annular block 62 drives the movable light rod 6 to move downward, and the movable light rod 6 drives the sealing plug 61 to move downward, thereby sealing the thinner part of the inner cavity of the hourglass-shaped tube 42 to prevent the sample water in the sampling tube 4 from leaking, and at the same time prevent external water from flowing into the sampling tube 4 to affect the quality of sampling.

[0040] When the collecting piston 51 moves upward, the negative pressure formed will cause the sealing plug 61 to move upward, thereby separating the sealing plug 61 from the hourglass-shaped tube 42 , loosening the seal on the hourglass-shaped tube 42 , and allowing external water to enter the sampling tube 4 .

[0041] The size of the notch of the annular frame 13 is set as required, so that when sampling is not being performed or after sampling is completed, the plurality of spherical blocks 64 can all abut against the lower end of the annular frame 13 during the up and down movement of the underwater vehicle body 1 .

[0042] See also Figure 3 , Figure 5 and Figure 8 A guide sealing groove 15 is provided on one side of the protection box 14, and a limit groove 16 is provided on the side of the guide sealing groove 15. The driving mechanism includes a lifting screw rod 7 rotatably installed at the upper end of the inner cavity of the protection box 14, and the upper end of the lifting screw rod 7 is driven by the output shaft of a waterproof motor fixedly installed at the upper end of the protection box 14. The lower end of the lifting screw rod 7 is fixedly connected with a rotating shaft 71, and the lower end of the rotating shaft 71 passes through the lower end of the protection box 14 and extends to the outside. The lower end of the rotating shaft 71 is fixedly connected with a cleaning brush 72 in an annular array, and the cleaning brush 72 is in active contact with the lower end of the filter plate 44. A convex block 8 is sleeved on the lifting screw rod 7, and the convex portion of the convex block 8 passes through the limit groove 16 and is fixedly connected to the sealing baffle 81, and the outer side surface of the sealing baffle 81 is fixedly connected with a push block 82.

[0043] The lifting screw rod 7 is threadedly connected to the convex block 8 , the raised portion of the convex block 8 is slidably connected to the limiting groove 16 up and down, and the sealing baffle 81 is slidably connected to the guide sealing groove 15 up and down.

[0044] In the initial state, the convex block 8 is at the lower end of the lifting screw 7, and the push block 82 is below the transmission seat 52. When the sealing baffle 81 moves up and down along the guide sealing groove 15, the sealing baffle 81 always seals the limiting groove 16.

[0045] By the output shaft of the waterproof motor rotating forward or reversely, the lifting screw 7 drives the convex block 8 to move upward or downward along the limit groove 16, and the convex block 8 drives the push block 82 to move upward or downward through the sealing baffle 81. When the push block 82 moves upward, it pushes the transmission seat 52 to move upward, and the transmission seat 52 drives the piston rod 5 to move upward, and the piston rod 5 drives the collecting piston 51 to move upward, thereby performing a sampling operation.

[0046] Working principle: When sampling, the underwater vehicle body 1 first dives to the area to be sampled, and at this time, the motor shaft of the stepper motor drives the rotating chassis 2 to rotate, and the rotating chassis 2 drives the concave seat 22 to rotate through the L-shaped bracket 21, and the concave seat 22 drives a sampling tube 4 to rotate to the bottom of the notch of the annular frame 13;

[0047] At this time, the output shaft of the waterproof motor drives the lifting screw 7 to rotate, and the lifting screw 7 drives the convex block 8 to move upward, and the convex block 8 drives the push block 82 to move upward through the sealing baffle 81, and the push block 82 drives the transmission seat 52 to move upward, and the transmission seat 52 drives the collecting piston 51 to slide upward along the inner cavity of the sampling tube 4 through the piston rod 5, so that a negative pressure is formed at the lower end of the inner cavity of the sampling tube 4, and the formed negative pressure will cause the sealing plug 61 to move upward, so that the sealing plug 61 is separated from the hourglass-shaped tube 42, and the seal of the hourglass-shaped tube 42 is loosened, so that the external water can enter the sampling tube 4, and the external water is drawn into the inner cavity of the sampling tube 4 along the filter seat 43 and the hourglass-shaped tube 42 to perform the sampling operation;

[0048] After the sampling is completed, the annular block 62 moves downward under the action of the elastic force of the sealing spring 63, and the annular block 62 drives the movable light rod 6 to move downward, and the movable light rod 6 drives the sealing plug 61 to move downward, thereby sealing the thinner part of the inner cavity of the hourglass-shaped tube 42 to prevent the sample water in the sampling tube 4 from leaking, and at the same time prevent external water from flowing into the sampling tube 4 during the movement of the underwater vehicle body 1, affecting the quality of sampling.

[0049] The filter plate 44 is provided to prevent the debris in the water from entering the sampling tube 4 and prevent the debris from clogging the hourglass tube 42;

[0050] At the same time, during the rotation of the lifting screw rod 7, the rotating shaft 71 is driven to rotate, and the rotating shaft 71 drives the cleaning brush 72 to rotate. During the rotation of the cleaning brush 72, it slides and contacts with the lower end of the filter plate 44, thereby cleaning the debris at the lower end of the filter plate 44, preventing the filter holes of the filter plate 44 from being blocked, and allowing the filter plate 44 to continue filtering.

[0051] After sampling is completed, the output shaft of the waterproof motor rotates in the opposite direction to drive the lifting screw 7 to rotate in the opposite direction. The lifting screw 7 drives the convex block 8 to move downward. The convex block 8 drives the push block 82 to move downward to the lower end through the sealing baffle 81, so that the push block 82 returns to its original position.

[0052] When sampling is completed, the motor shaft of the stepper motor drives the rotating chassis 2 to rotate, and the rotating chassis 2 drives the concave seat 22 to rotate through the L-shaped bracket 21, and the concave seat 22 drives the sampling tube 4 to rotate, so that the spherical block 64 at the upper end of the sampling tube 4 rotates to the lower end of the annular frame 13, so that multiple spherical blocks 64 are all abutted against the lower end of the annular frame 13, so that the spherical block 64 cannot move upward, and then the movable light rod 6 and the sealing plug 61 cannot move upward, so that the sealing plug 61 can be firmly inserted into the inner cavity of the hourglass-shaped tube 42, and the inner cavity of the hourglass-shaped tube 42 is continuously sealed to prevent water from entering the sampling tube 4 when no sampling is taken, or to prevent the sample water in the sampling tube 4 from leaking.

[0053] When re-sampling is required, the underwater vehicle body 1 is first moved to the sampling position, and then the above steps are repeated to complete the re-sampling.

[0054] When the sampling tube 4 needs to be removed, the knob 32 is turned, and the knob 32 drives the adjusting screw 33 to rotate through the round rod 31, and the adjusting screw 33 drives the movable clamping block 34 to move into the contraction groove 23 through the pin shaft, so that the movable clamping block 34 releases the clamping fixation of the sampling tube 4, and the sampling tube 4 can be conveniently removed from the concave seat 22;

[0055] When the sample water in the sampling tube 4 needs to be discharged, the movable light rod 6 is first pulled upward, and the movable light rod 6 drives the sealing plug 61 to move upward, so that the sealing plug 61 loosens the seal on the hourglass-shaped tube 42. At this time, the piston rod 5 is pushed downward, and the piston rod 5 drives the collecting piston 51 to slide downward along the inner cavity of the sampling tube 4, thereby discharging the sample water in the inner cavity of the sampling tube 4 downward, and the water flows downward along the hourglass-shaped tube 42 and the filter seat 43.

[0056] When the sampling tube 4 needs to be installed, the sampling tube 4 is first installed in the concave seat 22, so that the fixed clamping block 24 is clamped with the annular groove 41 on the side of the sampling tube 4, and then the knob 32 is turned to make the round rod 31 drive the adjusting screw 33 to rotate, and the adjusting screw 33 drives the movable clamping block 34 to move out of the contraction groove 23 through the pin shaft, so that the movable clamping block 34 is clamped in the annular groove 41, and the fixed clamping block 24 and the movable clamping block 34 cooperate to clamp and fix the sampling tube 4, and the installation of the sampling tube 4 is completed;

[0057] When the sampling tube 4 is installed, the L-shaped support plate 45 on the side of the sampling tube 4 is located close to the movable clamping block 34 , so that the L-shaped support plate 45 will not contact the push block 82 during the rotation of the sampling tube 4 .

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater vehicle with a collecting device, comprising an underwater vehicle body (1), characterized in that: A connecting frame (11) is fixedly mounted on the lower end of the underwater vehicle body (1), the lower end of the connecting frame (11) is fixedly connected to a protection box (14), the lower end of the protection box (14) is rotatably connected to a rotating chassis (2), the rotating chassis (2) is driven by a motor shaft of a stepping motor fixedly mounted in the protection box (14), the side of the rotating chassis (2) is fixedly connected to a plurality of L-shaped brackets (21) in a circular array, the upper ends of the plurality of L-shaped brackets (21) are fixedly connected to a concave seat (22), a sampling tube (4) is mounted in the concave seat (22), one side of the concave seat (22) is thickened, a contraction groove (23) is provided on the inner side of the thickened side of the concave seat (22), a fixed clamping block (24) is fixedly connected to the inner side of the non-thickened side of the concave seat (22), the concave seat (2 ... A clamping mechanism is installed on the outer side of the thickened side of the recessed seat (22); the clamping mechanism comprises an outer sealing sleeve (3) fixedly connected to the thickened side of the recessed seat (22), and a round rod (31) movably plugged into one end of the sealing sleeve (3); one end of the round rod (31) is fixedly connected to a knob (32); the other end of the round rod (31) extends to the inner cavity of the sealing sleeve (3) and is fixedly connected to an adjusting screw (33); one end of the adjusting screw (33) passes through the recessed seat (22) and extends into the contraction groove (23) and is rotatably connected to a movable clamping block (34) via a pin shaft; the adjusting screw (33) is threadedly connected to the recessed seat (22); the movable clamping block (34) is slidably connected to the contraction groove (23); the movable clamping block (34) and the fixed clamping block (24) are clamped on the side of the sampling tube (4); The lower end of the sampling tube (4) is fixedly connected to an hourglass-shaped tube (42), the lower end of the hourglass-shaped tube (42) is threadedly connected to a filter seat (43), the lower end of the filter seat (43) is fixedly connected to a filter plate (44), the side of the sampling tube (4) is fixedly connected to an L-shaped support plate (45), the upper end of the sampling tube (4) is slidably connected to a piston rod (5), the lower end of the piston rod (5) extends to the inner cavity of the sampling tube (4) and is fixedly connected to a collecting piston (51), the upper end of the piston rod (5) is fixedly sleeved with a transmission seat (52), the piston rod (5) is slidably connected to the circular hole at the upper end of the sampling tube (4), the collecting piston (51) is slidably connected to the side wall of the inner cavity of the sampling tube (4), the piston rod (5) and the collecting piston (51) are both penetrated from top to bottom with through holes, and a leak-proof mechanism is installed on the piston rod (5); The anti-leakage mechanism comprises a movable polished rod (6) inserted into the through hole, a sealing plug (61) fixedly connected to the lower end of the movable polished rod (6), a sealing spring (63) sleeved on the movable polished rod (6) from top to bottom, and an annular block (62), wherein the annular block (62) is fixedly connected to the movable polished rod (6), the upper end of the movable polished rod (6) passes through the upper end of the L-shaped support plate (45) and is fixedly connected to the spherical block (64), and the movable polished rod (6) and the L-shaped support plate ( The lower end of the sealing spring (63) abuts against the annular block (62), the upper end of the sealing spring (63) abuts against the upper end of the L-shaped support plate (45), the movable light rod (6) is slidably connected with the piston rod (5) and the through hole of the collecting piston (51) up and down, the sealing plug (61) is made of rubber material, and the sealing plug (61) abuts against the inner cavity of the hourglass-shaped tube (42) to form a seal, and a driving mechanism for sampling is installed on one side of the protection box (14).

2. An underwater vehicle with a collection device according to claim 1, characterized in that: A plurality of connecting rods (12) are fixedly connected to the side of the connecting frame (11) in an annular array, an annular frame (13) is sleeved on the outer side of the connecting rods (12), one end of the connecting rods (12) away from the connecting frame (11) is fixedly connected to the inner side of the annular frame (13), a notch is provided on one side of the annular frame (13), and the notch of the annular frame (13) is arranged above the driving mechanism and the anti-leakage mechanism.

3. The underwater vehicle with a collection device according to claim 1, characterized in that: An annular clamping groove (41) is provided on the side surface of the sampling tube (4), and the movable clamping block (34) and the fixed clamping block (24) are both clamped in the annular clamping groove (41).

4. The underwater vehicle with a collection device according to claim 1, characterized in that: A guide sealing groove (15) is provided on one side of the protection box (14), and a limit groove (16) is provided on the side of the guide sealing groove (15). The driving mechanism comprises a lifting screw (7) rotatably mounted on the upper end of the inner cavity of the protection box (14), the upper end of the lifting screw (7) is driven by the output shaft of a waterproof motor fixedly mounted on the upper end of the protection box (14), the lower end of the lifting screw (7) is fixedly connected to a rotating shaft (71), the lower end of the rotating shaft (71) passes through the lower end of the protection box (14) and extends to the outside, the lower end of the rotating shaft (71) is fixedly connected to a cleaning brush (72) in an annular array, the cleaning brush (72) is movably contacted with the lower end of the filter plate (44), a convex block (8) is sleeved on the lifting screw (7), the convex portion of the convex block (8) passes through the limit groove (16) and is fixedly connected to the sealing baffle (81), and the outer side surface of the sealing baffle (81) is fixedly connected to a push block (82).

5. An underwater vehicle with a collection device according to claim 4, characterized in that: The lifting screw (7) is threadedly connected to the convex block (8), the raised portion of the convex block (8) is slidably connected to the limit groove (16) up and down, and the sealing baffle (81) is slidably connected to the guide sealing groove (15) up and down.

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