Sampling device for ecological detection of hydrology and water resources

Abstract

The invention relates to a sampling device for ecological detection of hydrology and water resources, and belongs to the field of sampling equipment.The sampling device comprises a platform, a winch is installed on the top face of the platform, a supporting circular plate is connected to the bottom end of a steel wire rope of the winch, and a plurality of sampling barrels are installed on the bottom face of the supporting circular plate; the mounting circular plate comprises a mounting ring, two connecting circular plates attached to each other are mounted on the inner circumferential surface of the mounting ring, a plurality of fan-shaped grooves formed at equal intervals are formed in the top surfaces of the connecting circular plates, the fan-shaped grooves in the fixed circular plate can be aligned with the fan-shaped grooves in the rotating circular plate, and a rotating assembly used for controlling the rotating circular plate to rotate is arranged in the sampling barrel; a plurality of supporting plates arranged at equal intervals are fixed between the two mounting circular plates, an arc-shaped plate is mounted between every two adjacent supporting plates, and a driving assembly used for driving the arc-shaped plates to be opened and closed is arranged in the sampling barrel; the sampling device for ecological detection of hydrology and water resources can improve the accuracy of water body sampling.

Description

Technical Field

[0001] The present invention belongs to the technical field of sampling devices, and particularly relates to a sampling device for hydrological water resources ecological detection. Background Technique

[0002] With the rapid development of social economy, the demand for water resources is increasing continuously, and the problem of water environmental pollution is becoming increasingly serious. The rational utilization and protection of water resources, especially the ecological detection of hydrological water resources, have become an important topic in the current environmental protection field. The ecological detection of hydrological water resources includes the monitoring of aspects such as water quality, water quantity, and ecosystem health, which is an important means to ensure the water environmental quality.

[0003] Sampling water is an important step in water quality analysis and environmental monitoring. The correct sampling method can ensure the representativeness and accuracy of the sample, thus providing reliable data support for subsequent water quality analysis. For rivers, the stratified sampling method is usually adopted, and multiple water samples need to be collected at different depth positions of the river. However, when the sampling tool is put into the river at a certain depth for sampling, the river is prone to fluctuate, resulting in the mixing of upper and lower layer water samples, which affects the accuracy of sampling. Summary of the Invention

[0004] The purpose of the present invention is to provide a sampling device for hydrological water resources ecological detection with a simple structure and reasonable design to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions:

[0006] A sampling device for hydrological water resources ecological detection, comprising a platform. A floating board is fixed to the bottom surface of the platform. A support frame is installed on the top surface of the platform. A winch is installed on the support frame. The bottom end of the steel wire rope of the winch is connected to a horizontally arranged support circular plate. A first through groove for passing through the support circular plate is formed in the top surface of the platform. A plurality of sampling cylinders are installed on the bottom surface of the support circular plate. The plurality of sampling cylinders are arranged vertically in sequence. A counterweight block is fixed to the bottom surface of the sampling cylinder at the bottom. The sampling cylinder includes two horizontally arranged mounting circular plates. The mounting circular plate includes a mounting ring. Two mutually fitting connecting circular plates are installed on the inner peripheral surface of the mounting ring. The two connecting circular plates are respectively a fixed circular plate and a rotating circular plate. The fixed circular plate is fixedly connected to the mounting ring. The rotating circular plate is rotatably connected to the mounting ring. A plurality of equally spaced sector grooves are formed in the top surface of the connecting circular plate. The sector grooves on the fixed circular plate can be aligned with the sector grooves on the rotating circular plate. A rotating assembly for controlling the rotation of the rotating circular plate is arranged in the sampling cylinder. A plurality of equally spaced support plates are fixed between the two mounting circular plates. An arc-shaped plate is installed between adjacent two support plates. A driving assembly for driving the opening and closing of the arc-shaped plate is arranged in the sampling cylinder.

[0007] As a further optimized scheme of the present invention, the two mounting circular plates are respectively a top plate and a bottom plate. A sealing ring is fixed to the inner arc surface of the arc-shaped plate. The side surface of the sealing ring can be fitted with the side surface of the support plate. The top surface of the sealing ring can be fitted with the bottom surface of the top plate. The bottom surface of the sealing ring can be fitted with the top surface of the bottom plate.

[0008] As a further optimized scheme of the present invention, a vertically arranged limiting plate is arranged between the two support plates. The limiting plate is fixedly connected to the bottom surface of the top plate. A first fixing block and a second fixing block are fixed to the inner arc surface of the arc-shaped plate. A first cross bar passes through the top of the limiting plate. Both ends of the first cross bar are sleeved with a first connecting rod. One end of the first connecting rod is rotatably connected to the first cross bar. The other end of the first connecting rod is rotatably connected to the first fixing block. A second cross bar passes through the bottom of the limiting plate. Both ends of the second cross bar are sleeved with a second connecting rod. One end of the second connecting rod is rotatably connected to the second cross bar. The other end of the second connecting rod is rotatably connected to the second fixing block. The first connecting rod and the second connecting rod are parallel to each other. A torsion spring is sleeved on the outer periphery of the second cross bar. One end of the torsion spring is fixedly connected to the support plate. The other end of the torsion spring is fixedly connected to the second connecting rod. The driving assembly includes a vertically arranged moving rod. A plurality of connecting blocks are fixed to the outer peripheral surface of the moving rod. A first horizontal rod is rotatably installed on the connecting block. A third connecting rod is sleeved on the outer periphery of the first horizontal rod. A limiting block is fixed to the side surface of the first connecting rod close to the moving rod. The limiting block is hinged to the end of the third connecting rod far from the first horizontal rod.

[0009] As a further optimized solution of the present invention, a second through groove is formed in the top surface of the fixed circular plate, and a third through groove is formed in the top surface of the rotating circular plate. The rotating assembly includes a rotating sleeve fixedly arranged in the third through groove. The rotating sleeve is arranged in the second through groove, and a control rod is arranged in the rotating sleeve. The control rod is fixedly connected to the end of the moving rod. A plurality of spiral grooves are formed in the outer peripheral surface of the control rod, and a convex block is fixed on the inner peripheral surface of the rotating sleeve. The convex block is slidably matched with the control rod through the spiral groove.

[0010] As a further optimized solution of the present invention, a fixed sleeve arranged coaxially is fixed in the mounting ring. A plurality of fixing rods are fixed between the outer peripheral surface of the fixed sleeve and the inner peripheral surface of the mounting ring. A connecting ring is fixed to the bottom surface of the fixed sleeve. The moving rod is arranged in the connecting ring. A limiting ring is fixedly sleeved on the outer peripheral surface of the control rod, and a first spring is sleeved on the outer periphery of the moving rod. The first spring is located between the limiting ring and the connecting ring.

[0011] As a further optimized solution of the present invention, the two fixed sleeves are respectively a first sleeve and a second sleeve. The first sleeve is located above the second sleeve. A connecting sleeve is fixed to the side surface of the first sleeve. A limiting cylinder is slidably mounted in the connecting sleeve. A limiting hemisphere is fixed to the side surface of the limiting cylinder close to the moving rod, and a limiting circular plate is fixed to the side surface of the limiting cylinder far from the moving rod. A second spring is fixed to the side surface of the limiting circular plate far from the limiting cylinder. One end of the second spring far from the limiting circular plate is fixed to the inner end surface of the connecting sleeve. The limiting hemisphere can abut against the top surface of the limiting ring.

[0012] As a further optimized solution of the present invention, the two mounting rings are respectively a first ring and a second ring. The first ring is located above the second ring. A temperature sensor is installed on the outer peripheral surface of the first ring. Four insertion blocks are fixed on the top surface of the first ring. The four insertion blocks are arranged at equal intervals along the circumferential direction of the first ring. A first inclined surface is provided on the top surface of the insertion block. A slot for inserting the insertion block is opened on the bottom surface of the second ring. A relief groove communicating with the slot is opened on the bottom surface of the support plate. The support plate is slidably installed vertically along the relief groove with a relief block. A third spring is fixed on the top surface of the relief block. The top end of the third spring is fixedly connected to the inner top surface of the relief groove. An arc groove is opened on the inner wall of the slot. The second ring is slidably installed along its circumferential direction through the arc groove with a locking block. A second inclined surface is provided on the side surface of the locking block close to the insertion block. The second inclined surface is located on the bottom surface of the locking block. A slot for inserting the locking block is opened on the side surface of the insertion block. A fourth spring is fixed on the side surface of the locking block away from the insertion block. The end of the fourth spring away from the locking block is fixedly connected to the inner wall of the arc groove.

[0013] As a further optimized solution of the present invention, a contact through groove is opened on the side surface of the locking block. A third inclined surface is provided on the inner wall of the contact through groove away from the insertion block. A first bolt passes through the outer peripheral surface of the second ring. The first bolt is threadedly connected to the second ring. The end of the first bolt is a round head. The end of the first bolt can abut against the third inclined surface.

[0014] As a further optimized solution of the present invention, a fifth through groove for inserting the insertion block is opened on the top surface of the support circular plate. A rotating rod is rotatably installed on the top surface of the support circular plate. A rotating block is sleeved on the outer periphery of the rotating rod. The rotating block can be inserted into the slot. A second bolt passes through the end of the rotating block away from the rotating rod. The second bolt can be threadedly connected to the support circular plate.

[0015] As a further optimized solution of the present invention, four balance plates are fixedly arranged at equal intervals on the outer peripheral surface of the support circular plate. An adjusting rope is fixed on the top surface of the balance plate. The other end of the adjusting rope is fixedly connected to the bottom end of the steel wire rope of the winch. The adjusting rope includes a bidirectional lead screw and two connecting ropes. Threaded sleeves are fixed at the ends of the two connecting ropes close to each other. The bidirectional lead screw is inserted into the threaded sleeve. The bidirectional lead screw is in threaded transmission cooperation with the threaded sleeve. An adjusting ring is sleeved and fixed on the outer peripheral surface of the bidirectional lead screw.

[0016] The beneficial effects of the present invention are as follows: The sampling cylinder is slowly moved downward through the first through groove by using a hoisting frame into the river water. Since the sector grooves on the fixed circular plate and the rotating circular plate are aligned and the arc-shaped plate is in an open state, the sampling cylinder slowly displaces the water body during the downward movement in the river water, thereby reducing the fluctuation of the water body, and further reducing the mixing of the upper and lower layer water bodies, so that the water bodies at different heights can enter the sampling cylinder at the corresponding height. After the water body slowly enters the sampling cylinder, the arc-shaped plate is slowly closed by using the driving assembly, thereby completing the stratified sampling of the water bodies at different heights and improving the accuracy of water body sampling. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the structure of the support circular plate and the adjusting rope of the present invention;

[0019] Figure 3 is a schematic diagram of the structure of the sampling cylinder of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the driving assembly of the present invention;

[0021] Figure 5 is a schematic diagram of the structure of the mounting circular plate and the support plate of the present invention;

[0022] Figure 6 is a schematic diagram of the structure of the rotating assembly of the present invention;

[0023] Figure 7 is a cross-sectional view of the second ring of the present invention.

[0024] Reference signs: 1, platform; 11, floating board; 12, support frame; 14, first through groove; 13, winch; 2, support circular plate; 21, rotating rod; 22, rotating block; 23, second bolt; 24, balance plate; 25, adjusting rope; 251, connecting rope; 252, threaded sleeve; 253, bidirectional lead screw; 254, adjusting ring; 3, sampling cylinder; 31, counterweight; 32, mounting circular plate; 321, top plate; 322, bottom plate; 33, support plate; 331, relief groove; 332, relief block; 333, third spring; 34, arc plate; 341, sealing ring; 342, first fixing block; 343, second fixing block; 35, light strip; 4, drive assembly; 41, limiting plate; 42, first cross bar; 43, first connecting rod; 431, limiting block; 44, second cross bar; 441, torsion spring; 45, second connecting rod; 46, moving rod; 47, connecting block; 471, first horizontal bar; 472, third connecting rod; 5, mounting ring; 51, first ring; 511, inserting block; 5111, first inclined surface; 5112, card slot; 52, second ring; 521, slot; 53, clamping block; 531, second inclined surface; 532, connecting through groove; 533, third inclined surface; 54, arc groove; 55, fourth spring; 56, first bolt; 6, connecting circular plate; 61, fixed circular plate; 611, second through groove; 62, rotating circular plate; 621, third through groove; 63, fan-shaped groove; 64, fixed sleeve; 641, first sleeve; 642, second sleeve; 65, fixed rod; 66, connecting ring; 67, connecting sleeve; 671, limiting cylinder; 672, limiting hemisphere; 673, limiting circular plate; 674, second spring; 7, rotating assembly; 71, rotating sleeve; 72, control rod; 721, limiting ring; 73, spiral groove; 74, convex block; 75, first spring. Detailed implementation manners

[0025] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0026] Refer to Figure 1 , the sampling device for hydrological and water resources ecological detection includes a platform 1. A floating board 11 is fixed to the bottom surface of the platform 1. The platform 1 can float on the water surface under the buoyancy of the floating board 11. A support frame 12 is installed on the top surface of the platform 1, and a winch 13 is installed on the support frame 12. The bottom end of the steel wire rope of the winch 13 is connected to a horizontally arranged support circular plate 2. A first through groove 14 for passing through the support circular plate 2 is formed on the top surface of the platform 1. A plurality of sampling cylinders 3 are installed on the bottom surface of the support circular plate 2. The plurality of sampling cylinders 3 are arranged vertically in sequence. A counterweight 31 is fixed to the bottom surface of the sampling cylinder 3 located at the bottom.

[0027] Refer toFigure 1 and Figure 2 On the outer peripheral surface of the supporting circular plate 2, four balancing plates 24 are fixedly arranged at equal intervals. On the top surface of the balancing plate 24, an adjusting rope 25 is fixedly arranged. The other end of the adjusting rope 25 is fixedly connected to the bottom end of the steel wire rope of the hoist 13. The adjusting rope 25 includes a bidirectional lead screw 253 and two connecting ropes 251. At the mutually approaching ends of the two connecting ropes 251, threaded sleeves 252 are fixedly arranged. The bidirectional lead screw 253 is inserted into the threaded sleeve 252, and the bidirectional lead screw 253 is in threaded transmission cooperation with the threaded sleeve 252. A regulating ring 254 is sleeved and fixedly arranged on the outer peripheral surface of the bidirectional lead screw 253.

[0028] Rotate the regulating ring 254. The regulating ring 254 drives the bidirectional lead screw 253 to rotate. The bidirectional lead screw 253 rotates relative to the two threaded sleeves 252, so that the distance between the regulating ring 254 and the threaded sleeve 252 is changed, and then the length of the adjusting rope 25 is adjusted, so that the supporting circular plate 2 is in a horizontal state, facilitating the vertical downward movement of the sampling cylinder 3.

[0029] Referring to Figure 3 , the sampling cylinder 3 includes two horizontally arranged mounting circular plates 32, and the two mounting circular plates 32 are respectively a top plate 321 and a bottom plate 322. A plurality of support plates 33 are fixedly arranged between the top plate 321 and the bottom plate 322 at equal intervals. An arc-shaped plate 34 is installed between two adjacent support plates 33. A light bar 35 is fixedly arranged on the outer arc surface of the arc-shaped plate 34. The light bar 35 is arranged along the length direction of the arc-shaped plate 34, facilitating the observation of the attitude of the sampling cylinder 3 underwater. A sealing ring 341 is fixedly arranged on the inner arc surface of the arc-shaped plate 34. The side surface of the sealing ring 341 can be attached to the side surface of the support plate 33, the top surface of the sealing ring 341 can be attached to the bottom surface of the top plate 321, and the bottom surface of the sealing ring 341 can be attached to the top surface of the bottom plate 322. A driving assembly 4 for driving the opening and closing of the arc-shaped plate 34 is arranged in the sampling cylinder 3.

[0030] When the sampling cylinder 3 is slowly moved downward through the first through groove 14 by using the hoisting frame and into the river water, the arc-shaped plate 34 is in an open state. During the downward movement of the sampling cylinder 3 in the river water, the water body is slowly discharged, thereby reducing the fluctuation of the water body, and further reducing the mixing of the upper and lower layers of the water body, facilitating the water bodies at different heights to enter the sampling cylinder 3 at the corresponding heights. After the water body slowly enters the sampling cylinder 3, the driving assembly 4 is used to slowly close the arc-shaped plate 34, thereby completing the layered sampling of the water bodies at different heights and improving the accuracy of water body sampling.

[0031] Referring to Figure 3 and Figure 4, a vertically arranged limiting plate 41 is provided between two support plates 33, and the limiting plate 41 is fixedly connected to the bottom surface of the top plate 321. A first fixing block 342 and a second fixing block 343 are fixed to the inner arc surface of the arc-shaped plate 34. A first cross bar 42 penetrates through the top of the limiting plate 41, and both ends of the first cross bar 42 are sleeved with first connecting rods 43. One end of the first connecting rod 43 is rotatably connected to the first cross bar 42, and the other end of the first connecting rod 43 is rotatably connected to the first fixing block 342. A second cross bar 44 penetrates through the bottom of the limiting plate 41, and both ends of the second cross bar 44 are sleeved with second connecting rods 45. One end of the second connecting rod 45 is rotatably connected to the second cross bar 44, and the other end of the second connecting rod 45 is rotatably connected to the second fixing block 343. The first connecting rod 43 and the second connecting rod 45 are parallel to each other. A torsion spring 441 is sleeved on the outer circumference of the second cross bar 44. One end of the torsion spring 441 is fixedly connected to the support plate 33, and the other end of the torsion spring 441 is fixedly connected to the second connecting rod 45.

[0032] During the downward movement of the sampling cylinder 3, the second connecting rod 45 rotates in the direction away from the moving rod 46 under the elastic force of the torsion spring 441, so that the arc-shaped plate 34 is in an open state.

[0033] Refer to Figure 3 and Figure 4 , the driving assembly 4 includes a vertically arranged moving rod 46, and a plurality of connecting blocks 47 are fixed to the outer peripheral surface of the moving rod 46. A first horizontal rod 471 is rotatably installed on the connecting block 47. A third connecting rod 472 is sleeved on the outer circumference of the first horizontal rod 471. A limiting block 431 is fixed to the side of the first connecting rod 43 close to the moving rod 46, and the limiting block 431 is hinged to the end of the third connecting rod 472 far from the first horizontal rod 471.

[0034] Move the moving rod 46 downward. The moving rod 46 drives the first connecting rod 43 to rotate towards the inside of the sampling cylinder 3 through the third connecting rod 472. The first connecting rod 43 drives the arc-shaped plate 34 to move, so that the inner arc surface of the arc-shaped plate 34 is attached to the outer side surface of the support plate 33, and the sealing ring 341 is attached to the side surface of the support plate 33, thereby sealing the water body in the sampling cylinder 3.

[0035] Refer to Figure 5 and Figure 6 , the mounting circular plate 32 includes a mounting ring 5, and the mounting ring 5 is fixedly connected to the support plate 33. Two mutually attached connecting circular plates 6 are installed on the inner peripheral surface of the mounting ring 5. The two connecting circular plates 6 are respectively a fixed circular plate 61 and a rotating circular plate 62. The fixed circular plate 61 is fixedly connected to the mounting ring 5, and the rotating circular plate 62 is rotatably connected to the mounting ring 5. A plurality of equally spaced fan-shaped grooves 63 are formed on the top surface of the connecting circular plate 6. The fan-shaped grooves 63 on the fixed circular plate 61 can be aligned with the fan-shaped grooves 63 on the rotating circular plate 62. A rotating assembly 7 for controlling the rotation of the rotating circular plate 62 is arranged in the sampling cylinder 3.

[0036] When the sampling cylinder 3 moves downward in the river water, since the sector grooves 63 on the fixed circular plate 61 and the rotating circular plate 62 are in an aligned state and the arc-shaped plate 34 is in an open state, the sampling cylinder 3 slowly displaces the water body during the downward movement in the river water, thereby reducing the fluctuation of the water body, and further reducing the mixing of the upper and lower layer water bodies, so that the water bodies at different heights can enter the sampling cylinder 3 at the corresponding heights.

[0037] Referring to Figure 6 , a second through groove 611 is formed in the top surface of the fixed circular plate 61, and a third through groove 621 is formed in the top surface of the rotating circular plate 62. The rotating assembly 7 includes a rotating sleeve 71 fixedly disposed through the third through groove 621, and the rotating sleeve 71 is disposed through the second through groove 611. A control rod 72 is disposed through the rotating sleeve 71, and the control rod 72 is fixedly connected to the end of the moving rod 46. A plurality of spiral grooves 73 are formed on the outer peripheral surface of the control rod 72, and a convex block 74 is fixed on the inner peripheral surface of the rotating sleeve 71. The convex block 74 is slidably engaged with the control rod 72 through the spiral groove 73.

[0038] While the moving rod 46 moves downward, it drives the control rod 72 to move synchronously. The control rod 72 drives the rotating sleeve 71 to rotate through the convex block 74 and the spiral groove 73, and the rotating sleeve 71 drives the rotating circular plate 62 to rotate, so that the sector groove 63 of the rotating circular plate 62 is offset from the sector groove 63 of the fixed circular plate 61, thereby realizing the closing of the mounting circular plate 32.

[0039] Referring to Figure 5 and Figure 6 , a fixed sleeve 64 is coaxially fixed in the mounting ring 5, and a plurality of fixing rods 65 are fixed between the outer peripheral surface of the fixed sleeve 64 and the inner peripheral surface of the mounting ring 5. A connecting ring 66 is fixed to the bottom surface of the fixed sleeve 64, and the moving rod 46 is disposed through the connecting ring 66. A limiting ring 721 is fixedly sleeved on the outer peripheral surface of the control rod 72, and a first spring 75 is sleeved on the outer periphery of the moving rod 46. The first spring 75 is located between the limiting ring 721 and the connecting ring 66. When the moving rod 46 drives the control rod 72 to move downward, the first spring 75 is in a compressed state.

[0040] Referring to Figure 5 and Figure 6, the two fixed sleeves 64 are respectively sleeve one 641 and sleeve two 642, and sleeve one 641 is located above sleeve two 642. A connecting sleeve 67 is fixed on the side of sleeve one 641, and a limiting cylinder 671 is slidably installed in the connecting sleeve 67. A limiting hemisphere 672 is fixed on the side of the limiting cylinder 671 close to the moving rod 46, and a limiting circular plate 673 is fixed on the side of the limiting cylinder 671 away from the moving rod 46. A second spring 674 is fixed on the side of the limiting circular plate 673 away from the limiting cylinder 671, and one end of the second spring 674 away from the limiting circular plate 673 is fixedly connected to the inner end face of the connecting sleeve 67. The limiting hemisphere 672 can abut against the top surface of the limiting ring 721.

[0041] When the moving rod 46 in sleeve one 641 drives the limiting ring 721 to move downward, the limiting cylinder 671 moves in the direction close to the moving rod 46 under the elastic force of the second spring 674, so that the limiting hemisphere 672 is stuck on the top surface of the limiting ring 721 to limit the limiting ring 721.

[0042] Refer to Figure 5 and Figure 7 , the two mounting rings 5 are respectively ring one 51 and ring two 52, and ring one 51 is located above ring two 52. A temperature sensor is installed on the outer peripheral surface of ring one 51, and four insertion blocks 511 are fixed on the top surface of ring one 51. The four insertion blocks 511 are arranged at equal intervals along the circumferential direction of ring one 51. A first inclined surface 5111 is arranged on the top surface of the insertion block 511, and a slot 521 for inserting the insertion block 511 is opened on the bottom surface of ring two 52. A relief groove 331 communicating with the slot 521 is opened on the bottom surface of the support plate 33, and a relief block 332 is slidably installed vertically on the support plate 33 through the relief groove 331. A third spring 333 is fixed on the top surface of the relief block 332, and the top end of the third spring 333 is fixedly connected to the inner top surface of the relief groove 331. When the insertion block 511 does not enter the slot 521, the relief block 332 moves downward under the elastic force of the third spring 333 and enters the slot 521, and the locking block 53 abuts against the side surface of the relief block 332.

[0043] Refer to Figure 5 and Figure 7, an arc groove 54 is provided on the inner wall of the slot 521, and a block 53 is installed on the second ring 52 through the arc groove 54 to slide along its own circumferential direction, and a slot 5112 for inserting the block 53 is provided on the side of the plug block 511. A second inclined surface 531 is provided on the side of the block 53 close to the plug block 511, and the second inclined surface 531 is located on the bottom surface of the block 53. A spring 4 55 is fixed on the side of the block 53 away from the plug block 511, and one end of the spring 4 55 away from the block 53 is fixedly connected to the inner wall of the arc groove 54. A contact through groove 532 is provided on the side of the block 53, and a third inclined surface 533 is provided on the inner wall of the contact through groove 532 away from the plug block 511. A bolt 1 56 is penetrated on the outer circumference of the second ring 52, and the bolt 1 56 is threadedly connected to the second ring 52. The end of the bolt 1 56 is set as a round head, and the end of the bolt 1 56 can contact the third inclined surface 533.

[0044] When the insert block 511 is inserted into the slot 521, the insert block 511 abuts against the give way block 332 and pushes the give way block 332 out of the slot 521, and the clamping block 53 moves toward the direction close to the insert block 511 under the elastic force of the spring four 55, and the clamping block 53 is inserted into the clamping groove 5112, thereby clamping and fixing two adjacent sampling tubes 3 together; when the insert block 511 needs to be separated from the clamping block 53, the bolt one 56 is rotated, and the bolt one 56 abuts against the inclined surface three 533, thereby pushing the clamping block 53 to move in the direction away from the insert block 511, so that the clamping block 53 is separated from the clamping groove 5112, so that the insert block 511 can be separated from the slot 521.

[0045] When multiple sampling barrels 3 are connected together, the ring 2 52 of the upper sampling barrel 3 is clamped and fixed with the ring 1 51 of the lower sampling barrel 3, and the moving rods 46 in the multiple sampling barrels 3 are coaxially arranged, and the two adjacent control rods 72 in two adjacent sampling barrels 3 abut against each other. It is only necessary to use a linear driver such as a cylinder to move the moving rod 46 located at the top vertically, which can drive the multiple moving rods 46 to move synchronously, so that the multiple sampling barrels 3 can be opened and closed at the same time.

[0046] Reference Figure 2 The top surface of the supporting circular plate 2 is provided with a through slot 5 for inserting the insert block 511. The top surface of the supporting circular plate 2 is rotatably mounted with a rotating rod 21. The outer periphery of the rotating rod 21 is provided with a rotating block 22, and the rotating block 22 can be inserted into the slot 5112. The end of the rotating block 22 away from the rotating rod 21 is penetrated with a bolt 23, and the bolt 23 can be threadedly connected with the supporting circular plate 2. The insert block 511 is inserted into the through slot 5, and then the rotating block 22 is rotated in a direction close to the insert block 511, so that the rotating block 22 is inserted into the slot 5112, and then the rotating block 22 is fixed to the supporting circular plate 2 by the bolt 23, so that the sampling tube 3 at the top is clamped and fixed to the supporting circular plate 2.

[0047] The implementation principle of a sampling device for hydrological water resources ecological detection in an embodiment of this application is as follows: The sampling cylinder 3 is slowly moved downward through the first through groove 14 by using a hoist frame into the river water. Since the sector grooves 63 on the fixed circular plate 61 and the rotating circular plate 62 are in an aligned state, and the arc-shaped plate 34 is in an open state, the sampling cylinder 3 slowly displaces the water body during the downward movement in the river water, thereby reducing the water body fluctuation and further reducing the mixing of the upper and lower layer water bodies, so that water bodies at different heights can enter the sampling cylinder 3 at the corresponding heights. After the water body slowly enters the sampling cylinder 3, the driving assembly 4 is used to slowly close the arc-shaped plate 34, thereby completing the stratified sampling of water bodies at different heights and improving the accuracy of water body sampling.

[0048] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A sampling device for hydrological water resource ecological detection, characterized in that: It includes a platform (1). A floating board (11) is fixed to the bottom surface of the platform (1). A support frame (12) is installed on the top surface of the platform (1). A winch (13) is installed on the support frame (12). The bottom end of the steel wire rope of the winch (13) is connected to a horizontally arranged support circular plate (2). A first through groove (14) for passing through the support circular plate (2) is formed on the top surface of the platform (1). A plurality of sampling cylinders (3) are installed on the bottom surface of the support circular plate (2). The plurality of sampling cylinders (3) are arranged vertically in sequence. A counterweight (31) is fixed to the bottom surface of the sampling cylinder (3) at the bottom. The sampling cylinder (3) includes two horizontally arranged mounting circular plates (32). The mounting circular plate (32) includes a mounting ring (5). Two mutually attached connecting circular plates (6) are installed on the inner circumferential surface of the mounting ring (5). The two connecting circular plates (6) are respectively a fixed circular plate (61) and a rotating circular plate (62). The fixed circular plate (61) is fixedly connected to the mounting ring (5). The rotating circular plate (62) is rotatably connected to the mounting ring (5). A plurality of equally spaced fan-shaped grooves (63) are formed on the top surface of the connecting circular plate (6). The fan-shaped grooves (63) on the fixed circular plate (61) can be aligned with the fan-shaped grooves (63) on the rotating circular plate (62). A rotating assembly (7) for controlling the rotation of the rotating circular plate (62) is arranged in the sampling cylinder (3). A plurality of equally spaced support plates (33) are fixed between the two mounting circular plates (32). An arc-shaped plate (34) is installed between adjacent two support plates (33). A driving assembly (4) for driving the opening and closing of the arc-shaped plate (34) is arranged in the sampling cylinder (3).

2. The sampling device for hydrological water resources ecological detection according to claim 1, characterized in that: The two mounting circular plates (32) are respectively a top plate (321) and a bottom plate (322). A sealing ring (341) is fixed to the inner arc surface of the arc-shaped plate (34). The side surface of the sealing ring (341) can be attached to the side surface of the support plate (33). The top surface of the sealing ring (341) can be attached to the bottom surface of the top plate (321). The bottom surface of the sealing ring (341) can be attached to the top surface of the bottom plate (322).

3. The sampling device for hydrological and water resources ecological detection according to claim 2, characterized in that: A vertically arranged limiting plate (41) is provided between the two support plates (33). The limiting plate (41) is fixedly connected to the bottom surface of the top plate (321). A first fixing block (342) and a second fixing block (343) are fixed to the inner arc surface of the arc-shaped plate (34). A first cross bar (42) is inserted through the top of the limiting plate (41). Both ends of the first cross bar (42) are sleeved with a first connecting rod (43). One end of the first connecting rod (43) is rotatably connected to the first cross bar (42), and the other end of the first connecting rod (43) is rotatably connected to the first fixing block (342). A second cross bar (44) is inserted through the bottom of the limiting plate (41). Both ends of the second cross bar (44) are sleeved with a second connecting rod (45). One end of the second connecting rod (45) is rotatably connected to the second cross bar (44), and the other end of the second connecting rod (45) is rotatably connected to the second fixing block (343). The first connecting rod (43) and the second connecting rod (45) are parallel to each other. A torsion spring (441) is sleeved on the outer circumference of the second cross bar (44). One end of the torsion spring (441) is fixedly connected to the support plate (33), and the other end of the torsion spring (441) is fixedly connected to the second connecting rod (45). The driving assembly (4) includes a vertically arranged moving rod (46). A plurality of connecting blocks (47) are fixed to the outer peripheral surface of the moving rod (46). A first horizontal rod (471) is rotatably installed on the connecting block (47). A third connecting rod (472) is sleeved on the outer circumference of the first horizontal rod (471). A limiting block (431) is fixed to the side surface of the first connecting rod (43) close to the moving rod (46). The limiting block (431) is hinged to the end of the third connecting rod (472) far from the first horizontal rod (471).

4. The sampling device for hydrological water resources ecological detection according to claim 3, characterized in that: A second through groove (611) is formed in the top surface of the fixed circular plate (61). A third through groove (621) is formed in the top surface of the rotating circular plate (62). The rotating assembly (7) includes a rotating sleeve (71) fixedly inserted through the third through groove (621). The rotating sleeve (71) is inserted through the second through groove (611). A control rod (72) is inserted through the rotating sleeve (71). The control rod (72) is fixedly connected to the end of the moving rod (46). A plurality of spiral grooves (73) are formed in the outer peripheral surface of the control rod (72). A convex block (74) is fixed to the inner peripheral surface of the rotating sleeve (71). The convex block (74) is slidably engaged with the control rod (72) through the spiral grooves (73).

5. The sampling device for hydrological and water resource ecological detection according to claim 4, characterized in that: A fixed sleeve (64) arranged coaxially is fixed inside the mounting ring (5). A plurality of fixing rods (65) are fixed between the outer peripheral surface of the fixed sleeve (64) and the inner peripheral surface of the mounting ring (5). A connecting ring (66) is fixed to the bottom surface of the fixed sleeve (64). The moving rod (46) passes through the connecting ring (66). A limiting ring (721) is fixedly sleeved on the outer peripheral surface of the control rod (72). A first spring (75) is sleeved on the outer periphery of the moving rod (46). The first spring (75) is located between the limiting ring (721) and the connecting ring (66).

6. The sampling device for hydrological water resources ecological detection according to claim 5, characterized in that: The two fixed sleeves (64) are respectively a first sleeve (641) and a second sleeve (642). The first sleeve (641) is located above the second sleeve (642). A connecting sleeve (67) is fixed to the side surface of the first sleeve (641). A limiting cylinder (671) is slidably mounted inside the connecting sleeve (67). A limiting hemisphere (672) is fixed to the side surface of the limiting cylinder (671) close to the moving rod (46). A limiting circular plate (673) is fixed to the side surface of the limiting cylinder (671) away from the moving rod (46). A second spring (674) is fixed to the side surface of the limiting circular plate (673) away from the limiting cylinder (671). One end of the second spring (674) away from the limiting circular plate (673) is fixedly connected to the inner end surface of the connecting sleeve (67). The limiting hemisphere (672) can abut against the top surface of the limiting ring (721).

7. The sampling device for hydrological and water resource ecological detection according to claim 6, wherein: The two mounting rings (5) are respectively a first ring (51) and a second ring (52). The first ring (51) is located above the second ring (52). A temperature sensor is mounted on the outer peripheral surface of the first ring (51). Four insertion blocks (511) are fixed on the top surface of the first ring (51). The four insertion blocks (511) are arranged at equal intervals along the circumferential direction of the first ring (51). A first inclined surface (5111) is arranged on the top surface of the insertion block (511). A slot (521) for inserting the insertion block (511) is formed on the bottom surface of the second ring (52). A relief groove (331) communicating with the slot (521) is formed on the bottom surface of the support plate (33). The support plate (33) is vertically slidably mounted with a relief block (332) through the relief groove (331). A third spring (333) is fixed on the top surface of the relief block (332). The top end of the third spring (333) is fixedly connected with the inner top surface of the relief groove (331). An arc-shaped groove (54) is formed on the inner wall of the slot (521). The second ring (52) is circumferentially slidably mounted with a locking block (53) through the arc-shaped groove (54). A second inclined surface (531) is arranged on the side surface of the locking block (53) close to the insertion block (511). The second inclined surface (531) is located on the bottom surface of the locking block (53). A card slot (5112) for inserting the locking block (53) is formed on the side surface of the insertion block (511). A fourth spring (55) is fixed on the side surface of the locking block (53) away from the insertion block (511). One end of the fourth spring (55) away from the locking block (53) is fixedly connected with the inner wall of the arc-shaped groove (54).

8. The sampling device for hydrological and water resource ecological detection according to claim 7, characterized in that: A butting through groove (532) is formed on the side surface of the locking block (53). A third inclined surface (533) is arranged on the inner wall of the butting through groove (532) away from the insertion block (511). A first bolt (56) penetrates through the outer peripheral surface of the second ring (52). The first bolt (56) is threadedly connected with the second ring (52). The end of the first bolt (56) is a round head. The end of the first bolt (56) can abut against the third inclined surface (533).

9. The sampling device for hydrological and water resource ecological detection according to claim 8, characterized in that: A through groove five for inserting the insertion block (511) is formed on the top surface of the support circular plate (2). A rotating rod (21) is rotatably mounted on the top surface of the support circular plate (2). A rotating block (22) is sleeved on the outer periphery of the rotating rod (21). The rotating block (22) can be inserted into the card slot (5112). A second bolt (23) penetrates through one end of the rotating block (22) away from the rotating rod (21). The second bolt (23) can be threadedly connected with the support circular plate (2).

10. A sampling device for hydrological and water resource ecological detection according to claim 1, characterized in that: Four balance plates (24) are fixedly arranged on the outer peripheral surface of the supporting circular plate (2) at equal intervals. An adjusting rope (25) is fixedly arranged on the top surface of the balance plate (24). The other end of the adjusting rope (25) is fixedly connected to the bottom end of the steel wire rope of the winch (13). The adjusting rope (25) comprises a bidirectional lead screw (253) and two connecting ropes (251). Threaded sleeves (252) are fixedly arranged at the ends of the two connecting ropes (251) close to each other. The bidirectional lead screw (253) is inserted into the threaded sleeve (252). The bidirectional lead screw (253) is in threaded transmission cooperation with the threaded sleeve (252). An adjusting ring (254) is sleeved and fixedly arranged on the outer peripheral surface of the bidirectional lead screw (253).

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