Shipborne water quality hydraulic sampling device and working method thereof

Abstract

The invention relates to the technical field of water quality sampling devices, in particular to a shipborne water quality hydraulic sampling device which comprises a supporting rod, the bottom of the supporting rod is fixedly connected with a wire guide structure, the supporting rod is further fixedly connected with a wire winding structure, and the top of the supporting rod is fixedly connected with a hydraulic control structure; the top of the floating ring is fixedly connected with two hanging rings in a mirror symmetry mode, the two hanging rings are each fixedly connected with a pull rope, the two pull ropes penetrate through the wire guiding structure to be in transmission connection with the wire winding structure, and the bottom of the floating ring is fixedly connected with a mounting plate; the fixed-distance sampling tanks are sequentially connected end to end in a magnetic attraction mode, and the fixed-distance sampling tank located at the topmost end is connected to the hydraulic control structure in a magnetic attraction mode; the distance control wire is sequentially wound in the multiple fixed-distance sampling tanks, penetrates through the multiple fixed-distance sampling tanks and is in transmission connection to the wire winding structure through the wire guiding structure, and automatic sampling at different water depths can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of water quality sampling devices, and in particular to a shipborne water quality hydraulic sampling device and a working method thereof. Background Art

[0002] The water quality sampling device is an important tool for collecting water quality samples. By placing it in the water body to be tested and collecting water samples at different depths in the water body to be tested, it helps us obtain accurate water quality data, and then evaluate the quality of the water body, including whether it is polluted, the degree of pollution, and the types of pollutants, etc., to provide scientific basis for environmental protection departments to formulate corresponding treatment measures. At the same time, these data can also be used to evaluate the treatment effect and provide support for the continuous improvement of environmental treatment strategies.

[0003] The publication number is CN106644580A - a water quality sampler. The cylinder body is set to make the structure simple. The funnel can make the water mix evenly flow into the cylinder body. The metal base can keep the cylinder falling quickly, and the side plate can keep the cylinder falling stably and reliably. There is a filter net on the water storage box to filter out impurities, so that the water in the water storage box and the water in the cylinder can be subjected to different water quality tests. However, the water bodies being tested generally have different water depths, different regions, and even water samples collected at different time periods will be different, so it is difficult to accurately and completely sample the entire water area to improve the data support for water quality assessment. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a shipborne water quality hydraulic sampling device and a working method thereof to solve the above-mentioned problems.

[0005] Based on the above purpose, the present invention provides a shipborne water quality hydraulic sampling device, comprising: A support rod, wherein a conductor structure is fixedly connected to the bottom of the support rod, a winding structure is also fixedly connected to the support rod, and a hydraulic control structure is fixedly connected to the top of the support rod; The floating ring has two lifting rings fixedly connected to the top in a mirror-symmetrical manner, and the two lifting rings are respectively fixedly connected with a pull rope, and the two pull ropes pass through the conductor structure and are transmission-connected to the winding structure, and the bottom of the floating ring is fixedly connected with a mounting plate; There are multiple fixed-distance sampling tanks, which are magnetically connected head to tail in sequence, and the fixed-distance sampling tank at the top is magnetically connected to the hydraulic control structure; The distance control line is sequentially wound in the plurality of fixed-distance sampling tanks, passes through the plurality of fixed-distance sampling tanks, and is connected to the winding structure through the conductive wire structure.

[0006] As an optional embodiment, the fixed-distance sampling tank includes a tank body, and two locking mechanisms are fixedly connected to the outer end of the top of the tank body in a mirror-symmetrical manner, each of the locking mechanisms includes a fixed block fixedly connected to the tank body, a cavity is arranged inside the fixed block, a first magnetic ring is fixedly connected to the side of the cavity facing the outer circular end, a limit strip is also slidably connected in the cavity, a second magnetic ring is fixedly connected to the outer circular end of the limit strip, the first magnetic ring and the second magnetic ring repel each other magnetically in the cavity, a first connecting rod is hinged at the tail of the limit strip, a second connecting rod is hinged at the tail of the first connecting rod, a hinged frame is rotatably connected to the middle part of the second connecting rod, the bottom of the hinged frame is fixedly connected to the top of the tank body, a wire pulling hole is arranged at the tail of the second connecting rod, a magnetic suction part is fixedly connected to the top of each of the fixed blocks, each of the magnetic suction parts is provided with a wiring groove, and the first connecting rod and the second connecting rod are hinged in a "√" shape.

[0007] As an optional embodiment, a piston is provided inside the tank body, and the piston includes a rod body and a rubber ring fixedly connected to the outer circular end of the bottom of the rod body, the rod body is axially hollow, and limited circular bars are fixedly connected on both sides of the rod body, the limited circular bars are slidably matched with the tank body, the rubber ring abuts against the inner edge of the tank body, and a ring groove is provided on the top of the rod body, and the limit bar normally abuts against the ring groove, a rotating shaft is rotatably connected to the center of the bottom of the tank body, a winding drum is fixedly connected to the rotating shaft, and a resistance is provided between the rotating shaft and the tank body. Ni, one end of the rotating shaft is fixedly connected to a crank handle, the distance control line passes through multiple tank bodies in sequence and is wound on the winding drums in the multiple tank bodies, the bottom of the rod body is fixedly connected with two magnetic columns in a mirror-symmetrical manner, the two magnetic columns pass through the bottom of the tank body and are magnetically attracted to the magnetic part of another tank body at the bottom, each tank body is provided with a suction port on the top, a one-way valve is fixedly connected to the suction port, a plurality of notches are arranged at equal intervals on the edge of the outer circular end of each rubber ring, a through hole is provided on the bottom of the side of each tank body, and a rubber plug is plugged in the through hole.

[0008] As an optional embodiment, a scale ring is fixedly connected to the bottom of one side of each tank body, and a scale expressing the descent depth is provided on the scale ring. An indicator plate is rotatably connected to the inner circle end of the scale ring, and an arrow pointing to the scale is provided on the indicator plate. A bolt also passes through the indicator plate, and the bolt is threadedly connected to the tank body and presses the indicator plate against the tank body.

[0009] As an optional implementation, the top of each tank body is also mirror-symmetrically fixedly connected to two guide columns, and the bottom of each tank body is provided with a guide opening corresponding to the guide column.

[0010] As an optional embodiment, the distance control line includes a line body and distance beads fixedly connected to the line body at equal intervals, and a plurality of trigger members are detachably connected to the distance beads. The trigger members include two mirror-symmetrical connectors, and threaded holes are provided on the two connectors. The threaded holes on the two connectors are threadedly connected by screws and connected to the distance beads. A trigger line is fixedly connected to each of the connectors, and the other end of the trigger line passes through the corresponding wiring groove and is connected to the corresponding wire pulling hole.

[0011] As an optional embodiment, the wire structure includes a three-hole wire ring fixedly connected to the head end of the rod body (27) and a plurality of single-hole wire rings fixedly connected to the bottom of the support rod arranged at equal intervals, and the other ends of the two pull ropes are respectively fixedly connected to the two side holes of the three-hole wire ring.

[0012] As an optional embodiment, the winding structure includes a rod bracket, which is fixedly connected to the support rod, and a winding wheel is rotatably connected to the rod bracket. One end of the distance control line is wound on the winding wheel, and the other end passes through the single-hole wire ring and the three-hole wire ring and passes through the rod body in each of the fixed-distance sampling tanks and is wound on the winding drum, and is fixedly connected to the winding wheel on the bottom fixed-distance sampling tank after being wound.

[0013] As an optional embodiment, the hydraulic control structure includes a pressure bag, which is fixedly connected to one side of the rod bracket, the pressure bag is connected and communicated with a transmission pipe, the end of the transmission pipe is connected and communicated with a hydraulic telescopic column, the hydraulic telescopic column is fixedly connected to the mounting plate, a hydraulic telescopic rod is slidably connected inside the hydraulic telescopic column, a spring is abutted between the tail of the hydraulic telescopic rod and the hydraulic telescopic column, the head of the hydraulic telescopic rod is fixedly connected to two-end brackets, two magnetic moving blocks are fixedly connected at both ends of the two-end brackets, and the two magnetic moving blocks are normally located above the corresponding magnetic parts, and the pressure bag, transmission pipe and hydraulic telescopic column are filled with liquid medium.

[0014] A hydraulic sampling device for water quality applied to a ship, the working method comprising: S1: The ring groove on the rod body is locked by the locking mechanism on the tank body, so that the limit bar contacts the ring groove, and the inside of the fixed-distance sampling tank is evacuated to make the inside of the tank body negative pressure, but the piston is limited by the limit bar and cannot rise; S2: Wind one end of the distance control line on the reel, and pass the other end through the single-hole wire ring and the three-hole wire ring and through the rod in each fixed-distance sampling tank and wind it on the reel, and then wind it with the reel on the bottom fixed-distance sampling tank and fix it, and set the position of the trigger according to the diving depth of the fixed-distance sampling tank; S3: The fixed-distance sampling tanks are docked and magnetically attracted end to end in sequence according to the diving depth, and the uppermost fixed-distance sampling tank is docked with the floating ring and magnetically attracted with the magnetic attraction moving block in the hydraulic control structure; S4: Place the float on the water to be tested, press the pressure bag to move the hydraulic telescopic rod, and force the magnetic column to move away the corresponding magnetic part. Then the fixed-distance sampling tank begins to separate from the float and sink in the water. When it sinks to the preset position, under the gravity of the tank body itself, the distance control line in the uppermost fixed-distance sampling tank drives the trigger part to move upward relative to the tank body, so that the trigger line pulls the second connecting rod, and finally the limit bar is separated from the limit of the ring groove. The piston draws the water sample of this depth upward in the tank body. Similarly, due to the upward movement of the piston, the corresponding magnetic column and the magnetic part in the bottom fixed-distance sampling tank are separated from the magnetic state, so that the lower fixed-distance sampling tank is separated from the upper fixed-distance sampling tank, and so on.

[0015] S5: After the fixed-distance sampling canister has completed sampling, the reel-in wheel is rotated to recycle the fixed-distance sampling canister.

[0016] The beneficial effects of the present invention are as follows: the present invention releases the fixed-distance sampling tank through the hydraulic control structure, so that it can sample water at a predetermined depth, and when the previous fixed-distance sampling tank is collecting, the next fixed-distance sampling tank will automatically fall off to dive for sampling, and multiple automatic samplings at different depths can be performed at the same location at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the back side of an embodiment of the present invention; Figure 3 This is a schematic diagram of the interior of the floating ring and the interior of the hydraulic telescopic column according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the interior of a hydraulic telescopic column according to an embodiment of the present invention; Figure 5 It is a schematic diagram of a partial transverse section of a fixed-distance sampling tank according to an embodiment of the present invention; Figure 6 It is a partial longitudinal cross-sectional schematic diagram of a fixed-distance sampling tank according to an embodiment of the present invention; Figure 7 For the embodiment of the present invention Figure 5 A partial enlarged schematic diagram; Figure 8This is a partial schematic diagram of the top and bottom of the fixed-distance sampling tank according to an embodiment of the present invention; Fig. 9 This is a partial schematic diagram of the bottom of the fixed-distance sampling tank according to an embodiment of the present invention; Fig.10 This is a schematic diagram of the installation of the distance control wire and the trigger member according to an embodiment of the present invention.

[0019] The markings in the figure are: 1. Support rod; 2. Conductor structure; 3. Winding structure; 4. Hydraulic control structure; 5. Floating ring; 6. Lifting ring; 7. Pull rope; 8. Mounting plate; 9. Fixed distance sampling tank; 10. Control distance line; 11. Tank body; 12. Locking mechanism; 13. Fixed block; 14. Cavity; 15. First magnetic circle; 16. Limiting strip; 17. Second magnetic circle; 18. First connecting rod; 19. Second connecting rod; 20. Articulated frame; 21. Pulling hole; 22. Magnetic suction part; 23. Wire routing groove; 24. Piston; 25. Rubber ring; 26. Limiting round strip; 27. Rod body; 28. Ring groove; 29. ​​Rotating Axis; 30, winding drum; 31, crank handle; 32, magnetic column; 33, suction port; 34, one-way valve; 35, through hole; 36, rubber plug; 37, scale ring; 38, scale gauge; 39, indicator board; 40, guide column; 41, guide port; 42, wire body; 43, fixed distance bead; 44, trigger member; 45, trigger line; 46, three-hole wire ring; 47, single-hole wire ring; 48, rod bracket; 49, winding wheel; 51, pressure bag; 52, transmission tube; 53, hydraulic telescopic column; 54, hydraulic telescopic rod; 55, spring; 56, two-end bracket; 57, magnetic moving block. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1-Figure 10 As shown, a shipborne water quality hydraulic sampling device comprises: A support rod 1, a conductor structure 2 is fixedly connected to the bottom of the support rod 1, a winding structure 3 is also fixedly connected to the support rod 1, and a hydraulic control structure 4 is fixedly connected to the top of the support rod 1; The floating ring 5 has two hanging rings 6 fixedly connected to the top in a mirror-symmetrical manner, and a pull rope 7 is fixedly connected to each of the two hanging rings 6. The two pull ropes 7 pass through the conductor structure 2 and are transmission-connected to the winding structure 3. The bottom of the floating ring 5 is fixedly connected to a mounting plate 8; There are multiple fixed-distance sampling tanks 9, and the fixed-distance sampling tanks 9 are magnetically connected head to tail in sequence, and the fixed-distance sampling tank 9 at the top is magnetically connected to the hydraulic control structure 4; The distance control line 10 is sequentially wound in the plurality of fixed-distance sampling tanks 9 , passes through the plurality of fixed-distance sampling tanks 9 , and is connected to the winding structure 3 through the conductor structure 2 .

[0023] In this embodiment, the ring groove 28 on the rod body 27 is clamped by the locking mechanism 12 on the tank body, so that the limit strip 16 is in contact with the ring groove 28, and the interior of the fixed-distance sampling tank 9 is evacuated to make the internal pressure of the tank body 11 negative, but the piston 24 cannot rise due to the limit strip 16; one end of the distance control line 10 is wound on the winding wheel 49, and the other end passes through the single-hole wire ring 47 and the three-hole wire ring 46 and passes through the rod body 27 in each of the fixed-distance sampling tanks 9 and is wound on the winding drum 30, and is fixedly connected with the winding wheel 49 on the bottom fixed-distance sampling tank 9 after winding, and the position of the trigger member 44 is set according to the diving depth of the fixed-distance sampling tank 9; the fixed-distance sampling tanks 9 are magnetically connected head to tail in sequence according to the diving depth, and the fixed-distance sampling tank 9 at the top is connected to the floating ring 5, and is connected to the hydraulic control structure 4. The magnetic moving block 57 is magnetically attracted; the float 5 is placed on the water body to be tested, and the pressure bag 51 is pressed to move the hydraulic telescopic rod 54, forcing the magnetic column 32 to move away from the corresponding magnetic part 22, and then the fixed-distance sampling tank 9 begins to separate from the float 5 and sink in the water. When it sinks to the preset position, under the gravity of the tank body 11, the distance control line 10 in the uppermost fixed-distance sampling tank 9 drives the trigger member 44 to move upward relative to the tank body 11, so that the trigger line 45 pulls the third connecting rod 20, and finally the limit bar 16 is separated from the limit of the ring groove 28, and the piston 24 sucks the water sample of the depth upward in the tank body 11. Similarly, due to the upward movement of the piston 24, the corresponding magnetic column 32 and the magnetic part 22 in the bottom fixed-distance sampling tank 9 are separated from the magnetic state, so that the lower fixed-distance sampling tank 9 is separated from the upper fixed-distance sampling tank 9, and so on. After the fixed-distance sampling tank 9 has completed sampling, the reel 49 is rotated to recycle the fixed-distance sampling tank 9.

[0024] The fixed-distance sampling tank 9 is released through the hydraulic control structure 4 to sample water at a predetermined depth. When the previous fixed-distance sampling tank 9 is collecting, the next fixed-distance sampling tank 9 will automatically fall off and dive for sampling, so that multiple automatic samplings at different depths can be performed at the same location at one time.

[0025] As an optional implementation, Figure 3-Figure 7 As shown, the fixed-distance sampling tank 9 includes a tank body 11, and two locking mechanisms 12 are fixedly connected to the outer end of the top of the tank body 11 in a mirror-symmetrical manner. Each of the locking mechanisms 12 includes a fixed block 13 fixedly connected to the tank body 11, and a cavity 14 is arranged inside the fixed block 13. A first magnetic ring 15 is fixedly connected to the side of the outer circular end of the cavity 14, and a limiting strip 16 is also slidably connected in the cavity 14. The outer circular end of the limiting strip 16 is fixedly connected to a second magnetic ring 17. The first magnetic ring 15 and the second magnetic ring 17 are fixedly connected to the cavity 14. The magnetic force in the body 14 repels each other, the tail of the limit bar 16 is hinged with a first connecting rod 18, the tail of the first connecting rod 18 is hinged with a second connecting rod 19, the middle of the second connecting rod 19 is rotatably connected with an articulated frame 20, the bottom of the articulated frame 20 is fixedly connected to the top of the tank body 11, the tail of the second connecting rod 19 is provided with a wire hole 21, the top of each of the fixed blocks 13 is fixedly connected with a magnetic suction part 22, each of the magnetic suction parts 22 is provided with a wiring groove 23, and the first connecting rod 18 and the second connecting rod 19 are hinged in a "√" shape; In this way, when the pull-wire hole 21 is pulled upward, the second connecting rod 19 will be linked to pull the limit bar 16 out of the ring groove 28 on the rod body 27, so that the piston 24 can move upward relative to the tank body 11 to suck water into the tank body 11.

[0026] As an optional implementation, Figure 5 and Figure 6As shown, a piston 24 is arranged inside the tank body 11, and the piston 24 includes a rod body 27 and a rubber ring 25 fixedly connected to the outer circular end of the bottom of the rod body 27. The rod body 27 is axially hollow, and limited circular strips 26 are fixedly connected on both sides of the rod body 27. The limited circular strips 26 are slidably matched with the tank body 11. The rubber ring 25 abuts against the inner edge of the tank body 11. A circular groove 28 is arranged on the top of the rod body 27, and the limit strip 16 abuts against the circular groove 28 under normal conditions. A rotating shaft 29 is rotatably connected to the center of the bottom of the tank body 11, and a winding drum 30 is fixedly connected to the rotating shaft 29. A damping is arranged between the rotating shaft 29 and the tank body 11. , one end of the rotating shaft 29 is fixedly connected to a crank handle 31, the distance control line 10 passes through the multiple tank bodies 11 in sequence and is wound on the winding drums 30 in the multiple tank bodies 11, the bottom of the rod body 27 is fixedly connected with two magnetic columns 32 in a mirror-symmetrical manner, the two magnetic columns 32 pass through the bottom of the tank body 11 and are magnetically attracted to the magnetic suction part 22 on the other tank body 11 at the bottom, each tank body 11 is provided with a suction port 33 at the top, and a one-way valve 34 is fixedly connected to the suction port 33, and a plurality of notches are evenly spaced on the outer circular end edge of each rubber ring 25, and a through hole 35 is provided at the bottom of the side of each tank body 11, and a rubber plug 36 is plugged in the through hole 35; In this way, the crank handle 31 can control the rotation of the winding drum 30. When the ring groove 28 on the rod body 27 is limited by the limit bar 16, the magnetic part 22 of the magnetic column 32 contacts and is magnetically attracted to each other. This is the basis for whether two adjacent fixed-distance sampling tanks 9 fall off or not. The suction port 33 and the one-way valve 34 are used to achieve a vacuum state in the tank body 11, and the rubber plug 36 is used for sampling after collecting water samples.

[0027] As an optional implementation, Fig. 9 As shown, a scale ring 37 is fixedly connected to the bottom of one side of each tank body 11, and a scale gauge 38 expressing the descent depth is arranged on the scale ring 37. An indicator plate 39 is rotatably connected to the inner circle end of the scale ring 37, and an arrow pointing to the scale gauge 38 is arranged on the indicator plate 39. A bolt is also passed through the indicator plate 39, and the bolt is threadedly connected to the tank body 11, and the indicator plate 39 is pressed against the tank body 11; In this way, the depth is expressed on the scale, and the arrow can be pointed to the corresponding scale for recording.

[0028] As an optional implementation, Figure 6 and Figure 8 As shown, two guide posts 40 are fixedly connected to the top of each tank body 11 in mirror symmetry, and a guide opening 41 corresponding to the guide post 40 is provided at the bottom of each tank body 11; In this way, two adjacent fixed-distance sampling tanks 9 are guided.

[0029] As an optional implementation, Fig.10 As shown, the distance control line 10 includes a line body 42 and distance beads 43 fixedly connected to the line body 42 at equal intervals, and a plurality of trigger members 44 are detachably connected to the distance beads 43. The trigger members 44 include two mirror-symmetrical connectors, and threaded holes are provided on the two connectors. The threaded holes on the two connectors are threadedly connected by screws and connected to the distance beads 43. A trigger line 45 is fixedly connected to each of the connectors, and the other end of the trigger line 45 passes through the corresponding wiring groove 23 and is connected to the corresponding wire pulling hole 21. In this way, when the trigger line 45 is pulled, the fixed-distance sampling tank 9 is triggered for sampling, and the trigger member 44 is detachable and can be installed on different fixed-distance beads 43 , thereby changing the sampling trigger depth of the fixed-distance sampling tank 9 .

[0030] As an optional implementation, Figure 1 and Figure 2 As shown, the wire structure 2 includes a three-hole wire ring 46 fixedly connected to the head end of the rod body 27 and a plurality of single-hole wire rings 47 fixedly connected to the bottom of the support rod 1 arranged at equal intervals, and the other ends of the two strands of the pull rope 7 are respectively fixedly connected to the two side holes of the three-hole wire ring 46; In this way, the pull rope 7 is used for the support rod 1 to pull the floating ring 5 .

[0031] As an optional implementation, Figure 1 As shown, the winding structure 3 includes a rod bracket 48, and the rod bracket 48 is fixedly connected to the support rod 1. A winding wheel 49 is rotatably connected to the rod bracket 48. One end of the distance control line 10 is wound on the winding wheel 49, and the other end passes through the single-hole wire ring 47 and the three-hole wire ring 46 and passes through the rod body 27 in each of the fixed-distance sampling tanks 9 and is wound on the winding drum 30, and is fixedly connected to the winding wheel 49 on the bottom fixed-distance sampling tank 9 after being wound; In this way, the winding structure 3 is used to recycle the fixed-distance sampling tank 9 after the sampling is completed.

[0032] As an optional implementation, Figure 1 and Figure 3As shown, the hydraulic control structure 4 includes a pressure bag 51, which is fixedly connected to one side of the rod bracket 48, and the pressure bag 51 is connected and communicated with a transmission pipe 52. The end of the transmission pipe 52 is connected and communicated with a hydraulic telescopic column 53, and the hydraulic telescopic column 53 is fixedly connected to the mounting plate 8. A hydraulic telescopic rod 54 is slidably connected in the hydraulic telescopic column 53, and a spring 55 is abutted between the tail of the hydraulic telescopic rod 54 and the hydraulic telescopic column 53. The head of the hydraulic telescopic rod 54 is fixedly connected to two-end brackets 56, and two ends of the two-end brackets 56 are respectively fixedly connected to two magnetic moving blocks 57, and the two magnetic moving blocks 57 are normally located above the corresponding magnetic suction part 22. The pressure bag 51, the transmission pipe 52 and the hydraulic telescopic column 53 are filled with liquid medium; In this way, pressing the pressure bag 51 can extend the telescopic column through hydraulic pressure, and then the two magnetic suction parts 22 are horizontally displaced and separated from the corresponding magnetic suction parts 22, so that the fixed-distance sampling tank 9 starts to dive.

[0033] Applied to a shipborne water quality hydraulic sampling device, the working method includes: S1: The ring groove 28 on the rod body 27 is engaged by the locking mechanism 12 on the tank body, so that the limit bar 16 contacts the ring groove 28, and the interior of the fixed-distance sampling tank 9 is evacuated to make the interior of the tank body 11 negatively pressurized, but the piston 24 is limited by the limit bar 16 and cannot rise; S2: Wind one end of the distance control line 10 on the reel 49, and the other end passes through the single-hole wire ring 47 and the three-hole wire ring 46 and passes through the rod 27 in each fixed-distance sampling tank 9 and is wound on the reel 30, and is fixedly connected to the reel 49 on the bottom fixed-distance sampling tank 9 after being wound, and the position of the trigger 44 is set according to the diving depth of the fixed-distance sampling tank 9; S3: The fixed-distance sampling tanks 9 are magnetically connected end to end in sequence according to the diving depth, and the uppermost fixed-distance sampling tank 9 is connected to the floating ring 5 and is magnetically connected to the magnetic moving block 57 in the hydraulic control structure 4; S4: Place the float 5 on the water body to be tested, press the pressure bag 51, move the hydraulic telescopic rod 54, force the magnetic column 32 to move away from the corresponding magnetic part 22, and then the fixed-distance sampling tank 9 begins to separate from the float 5 and sink in the water. When it sinks to the preset position, under the gravity of the tank body 11, the distance control line 10 in the uppermost fixed-distance sampling tank 9 drives the trigger member 44 to move upward relative to the tank body 11, so that the trigger line 45 pulls the second connecting rod 19, and finally the limit bar 16 is separated from the limit of the ring groove 28, and the piston 24 sucks the water sample of the depth upward in the tank body 11. Similarly, due to the upward movement of the piston 24, the corresponding magnetic column 32 and the magnetic part 22 in the bottom fixed-distance sampling tank 9 are separated from the magnetic state, so that the lower fixed-distance sampling tank 9 is separated from the upper fixed-distance sampling tank 9, and so on. S5: After the fixed-distance sampling tank 9 has finished sampling, the reel-in wheel 49 is rotated to recycle the fixed-distance sampling tank 9.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shipborne water quality hydraulic sampling device, characterized in that: include: A support rod (1), wherein a conductor structure (2) is fixedly connected to the bottom of the support rod (1), a winding structure (3) is also fixedly connected to the support rod (1), and a hydraulic control structure (4) is fixedly connected to the top of the support rod (1); The floating ring (5) has two hanging rings (6) fixedly connected to the top in a mirror-symmetrical manner, and the two hanging rings (6) are respectively fixedly connected with a pull rope (7), and the two pull ropes (7) pass through the conductor structure (2) and are transmission-connected to the winding structure (3), and the bottom of the floating ring (5) is fixedly connected with a mounting plate (8); A plurality of fixed-distance sampling tanks (9) are provided, wherein the fixed-distance sampling tanks (9) are magnetically connected head to tail in sequence, and the fixed-distance sampling tank (9) at the top is magnetically connected to the hydraulic control structure (4); The distance control line (10) is sequentially wound in the plurality of fixed-distance sampling tanks (9), passes through the plurality of fixed-distance sampling tanks (9), and is connected to the winding structure (3) through the conductor structure (2).

2. A shipborne water quality hydraulic sampling device according to claim 1, characterized in that: The fixed-distance sampling tank (9) comprises a tank body (11), and two locking mechanisms (12) are fixedly connected to the outer end of the top of the tank body (11) in a mirror-symmetrical manner, and each of the locking mechanisms (12) comprises a fixed block (13) fixedly connected to the tank body (11), and a cavity (14) is arranged inside the fixed block (13), and a first magnetic ring (15) is fixedly connected to the side of the outer circular end of the cavity (14), and a limit strip (16) is also slidably connected in the cavity (14), and a second magnetic ring (17) is fixedly connected to the outer circular end of the limit strip (16), and the first magnetic ring (15) and the second magnetic ring (17) are in the cavity. (14) internal magnetic forces repel each other, the tail of the limit bar (16) is hinged with a first connecting rod (18), the tail of the first connecting rod (18) is hinged with a second connecting rod (19), the middle of the second connecting rod (19) is rotatably connected with a hinge frame (20), the bottom of the hinge frame (20) is fixedly connected to the top of the tank body (11), the tail of the second connecting rod (19) is provided with a wire pulling hole (21), the top of each of the fixed blocks (13) is fixedly connected with a magnetic attraction part (22), each of the magnetic attraction parts (22) is provided with a wiring groove (23), and the first connecting rod (18) and the second connecting rod (19) are hinged in a "√" shape.

3. A shipborne water quality hydraulic sampling device according to claim 2, characterized in that: A piston (24) is arranged inside the tank body (11). The piston (24) comprises a rod body (27) and a rubber ring (25) fixedly connected to the outer circular end of the bottom of the rod body (27). The rod body (27) is axially hollow. Limiting round bars (26) are fixedly connected to both sides of the rod body (27). The limiting round bars (26) are slidably matched with the tank body (11). The rubber ring (25) abuts against the inner edge of the tank body (11). A circular groove (28) is arranged at the top of the rod body (27). The limiting bar (16) abuts against the circular groove (28) in normal state. A rotating shaft (29) is rotatably connected to the center of the bottom of the tank body (11). A winding drum (30) is fixedly connected to the rotating shaft (29). A damping is arranged between the rotating shaft (29) and the tank body (11). One end of the rotating shaft (29) is fixedly connected to a crank handle (31); the distance control line (10) passes through the multiple tank bodies (11) in sequence from head to tail and is wound on a winding drum (30) in the multiple tank bodies (11); the bottom of the rod body (27) is fixedly connected to two magnetic columns (32) in a mirror-symmetrical manner; the two magnetic columns (32) pass through the bottom of the tank body (11) and are magnetically attracted to the magnetic attraction part (22) on the other tank body (11) at the bottom; a suction port (33) is provided at the top of each tank body (11); a one-way valve (34) is fixedly connected to the suction port (33); a plurality of notches are arranged at equal intervals on the outer circular end edge of each rubber ring (25); a through hole (35) is provided at the bottom of the side of each tank body (11); a rubber plug (36) is plugged in the through hole (35).

4. A shipborne water quality hydraulic sampling device according to claim 3, characterized in that: A scale ring (37) is fixedly connected to the bottom of one side of each tank body (11), and a scale gauge (38) expressing the descent depth is arranged on the scale ring (37). An indicator plate (39) is rotatably connected to the inner circular end of the scale ring (37), and an arrow pointing to the scale gauge (38) is arranged on the indicator plate (39). A bolt also passes through the indicator plate (39), and the bolt is threadedly connected to the tank body (11) and abuts the indicator plate (39) against the tank body (11).

5. A shipborne water quality hydraulic sampling device according to claim 4, characterized in that: The top of each tank body (11) is also fixedly connected with two guide pillars (40) in a mirror-symmetrical manner, and the bottom of each tank body (11) is provided with a guide opening (41) corresponding to the guide pillars (40).

6. A shipborne water quality hydraulic sampling device according to claim 5, characterized in that: The distance control line (10) comprises a line body (42) and distance beads (43) fixedly connected to the line body (42) at equal intervals, and a plurality of trigger members (44) are detachably connected to the distance beads (43). The trigger members (44) comprise two mirror-symmetrical connectors, and threaded holes are provided on the two connectors. The threaded holes on the two connectors are threadedly connected by screws and connected to the distance beads (43). A trigger line (45) is fixedly connected to each connector, and the other end of the trigger line (45) passes through the corresponding wiring groove (23) and is connected to the corresponding wire pulling hole (21).

7. A shipborne water quality hydraulic sampling device according to claim 6, characterized in that: The wire structure (2) comprises a three-hole wire ring (46) fixedly connected to the head end of the rod body (27) and a plurality of single-hole wire rings (47) fixedly connected to the bottom of the support rod (1) arranged at equal intervals, and the other ends of the two strands of the pull rope (7) are respectively fixedly connected to the two side holes of the three-hole wire ring (46).

8. A shipborne water quality hydraulic sampling device according to claim 7, characterized in that: The winding structure (3) comprises a rod support (48), wherein the rod support (48) is fixedly connected to the support rod (1), and a winding wheel (49) is rotatably connected to the rod support (48). One end of the distance control line (10) is wound on the winding wheel (49), and the other end passes through the single-hole wire ring (47) and the three-hole wire ring (46) and passes through the rod body (27) in each of the fixed-distance sampling tanks (9) and is wound on the winding drum (30), and is fixedly connected to the winding wheel (49) on the bottommost fixed-distance sampling tank (9) after being wound.

9. A shipborne water quality hydraulic sampling device according to claim 8, characterized in that: The hydraulic control structure (4) comprises a pressure bag (51), wherein the pressure bag (51) is fixedly connected to one side of the rod bracket (48), the pressure bag (51) is connected to and communicated with a transmission pipe (52), the end of the transmission pipe (52) is connected to and communicated with a hydraulic telescopic column (53), the hydraulic telescopic column (53) is fixedly connected to the mounting plate (8), a hydraulic telescopic rod (54) is slidably connected inside the hydraulic telescopic column (53), a spring (55) is abutted between the tail of the hydraulic telescopic rod (54) and the hydraulic telescopic column (53), the head of the hydraulic telescopic rod (54) is fixedly connected to two end brackets (56), and two ends of the two end brackets (56) are respectively fixedly connected to two magnetic moving blocks (57), and the two magnetic moving blocks (57) are normally located above the corresponding magnetic suction part (22), and the pressure bag (51), the transmission pipe (52) and the hydraulic telescopic column (53) are filled with liquid medium.

10. The shipborne water quality hydraulic sampling device as claimed in any one of claims 1 to 9, characterized in that: The working method comprises: S1: The ring groove (28) on the rod body (27) is engaged by the locking mechanism (12) on the tank body, so that the limit strip (16) contacts the ring groove (28), and the interior of the fixed-distance sampling tank (9) is evacuated, so that the interior of the tank body (11) is under negative pressure, but the piston (24) is restricted by the limit strip (16) and cannot rise; S2: one end of the distance control line (10) is wound on the reel (49), and the other end is passed through the single-hole wire ring (47) and the three-hole wire ring (46) and passed through the rod body (27) in each fixed-distance sampling tank (9) and wound on the reel (30), and is fixedly connected to the reel (49) on the bottommost fixed-distance sampling tank (9) after being wound, and the position of the trigger member (44) is set according to the diving depth of the fixed-distance sampling tank (9); S3: The fixed-distance sampling tanks (9) are magnetically connected end to end in sequence according to the diving depth, and the uppermost fixed-distance sampling tank (9) is connected to the floating ring (5) and is magnetically connected to the magnetic moving block (57) in the hydraulic control structure (4); S4: Place the float (5) on the water body to be tested, press the pressure bag (51), move the hydraulic telescopic rod (54), force the magnetic column (32) to move away from the corresponding magnetic attraction part (22), and then the fixed-distance sampling tank (9) begins to separate from the float (5) and sink in the water. When it sinks to a preset position, the distance control line (10) in the uppermost fixed-distance sampling tank (9) drives the trigger member (44) to move upward relative to the tank body (11) due to the gravity of the tank body (11) itself. , so that the trigger line (45) pulls the second connecting rod (19), and finally the limit bar (16) is separated from the limit of the ring groove (28), and the piston (24) sucks the water sample of the depth upward in the tank body (11). Similarly, due to the upward movement of the piston (24), the corresponding magnetic column (32) and the magnetic suction part (22) in the bottom fixed-distance sampling tank (9) are separated from the magnetic suction state, so that the lower fixed-distance sampling tank (9) is separated from the upper fixed-distance sampling tank (9), and so on; S5: After the fixed-distance sampling tank (9) has completed sampling, the reeling wheel (49) is rotated to recycle the fixed-distance sampling tank (9).

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