An underwater stratified multi-sample sampling vessel

Abstract

The present invention discloses an underwater stratified multi-sample sampling ship, which relates to the technical field of underwater sampling equipment, and comprises a hull, a first extension arm and a second extension arm arranged on the hull, wherein the first extension arm and the second extension arm are respectively provided with a sampling unit and a counterweight unit with adjustable height, and the sampling unit and the counterweight unit are respectively located on both sides of the hull. The present invention is provided with a sampling unit and a counterweight unit with adjustable height. During the implementation of the sampling work, the counterweight unit can be synchronously lowered below the water surface with the sampling unit to reduce the gravity deviation on both sides of the hull, maintain the balance of the hull, and avoid the hull from being offset under the traction force of the sampling unit, thereby maintaining the balance and stability of the hull during the sampling operation. At the same time, it is convenient to extract water samples at different positions in the sampling depth, thereby improving the comprehensiveness of the sampling operation and the accuracy of the subsequent water sample detection operation.

Description

Technical Field

[0001] The invention relates to the technical field of underwater sampling equipment, and in particular to an underwater stratified multi-sample sampling ship. Background Art

[0002] In the process of river water quality sampling, in order to ensure the representativeness, reliability, comparability, scientificity and fairness of water quality monitoring results. First, it is necessary to select the sampling section, then determine the sampling vertical line on the section, and finally determine the sampling point. This process is generally: selection of sampling section - determination of sampling vertical line on the section - determination of sampling point. Therefore, according to different collection needs, it is necessary to carry out sampling operations at different depths underwater. In actual operation, automatic sampling and isokinetic sampling can be used to implement sampling operations. Automatic sampling is the process of sampling without human intervention, and intermittent or continuous sampling can be performed according to pre-programmed procedures through instruments and equipment.

[0003] The existing automatic water sampling methods mostly use unmanned boats equipped with sampling equipment to implement sampling operations in waters. However, compared with manually driven boats, unmanned boats are smaller in size and lighter in weight. When the sampling equipment is lowered into the water, it will generate traction on the unmanned boat, causing the hull of the unmanned boat to tilt easily, affecting the stability of the unmanned boat and the normal implementation of sampling. In addition, when the existing sampling equipment implements sampling operations at different depths, most of them can only collect water samples of the depth at one time, which is not convenient for layered water sampling, and thus it is impossible to collect and test water samples in layers. The accuracy of sampling and testing needs to be improved. Summary of the invention

[0004] In response to the above problems, the present application provides an underwater stratified multi-sample sampling vessel.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an underwater stratified multi-sample sampling vessel, comprising a hull, a first extension arm and a second extension arm arranged on the hull, the first extension arm and the second extension arm are respectively provided with a sampling unit and a counterweight unit with adjustable heights, the sampling unit and the counterweight unit are respectively located on both sides of the hull, when the first extension arm and the second extension arm move in opposite directions, the sampling unit and the counterweight unit adjust the distance from their own hull.

[0006] It also includes a protective structure surrounding the sampling unit, on which a vertical support frame that can move synchronously with the sampling unit is provided. When the sampling unit is lowered below the water surface, the vertical support frame and the protective structure are lowered synchronously until the protective structure is lowered below the water surface.

[0007] Furthermore, the hull is provided with a bracket, the first extension arm and the second extension arm are both provided on the bracket, and the first extension arm and the second extension arm are both provided with a first tooth group and a second tooth group distributed in parallel, a driving gear meshing with the first tooth group and the second tooth group is provided in the relative space between the two groups, and the driving gear is provided with a driving motor that can drive it to rotate.

[0008] Furthermore, the sampling unit includes a positioning arm 1 arranged on the first extension arm, a supporting frame 1 is arranged on the positioning arm 1, and a first winding wheel is arranged in the supporting frame 1.

[0009] The rope body of the first winding wheel is connected to a lifting frame through a first lock, and a pair of limit arms are provided at the bottom end of the lifting frame. A plurality of samplers equidistantly distributed from top to bottom are provided in the relative space between the pair of limit arms. The lifting frame, the limit arms and the samplers can gradually descend as the first winding wheel pays out the line.

[0010] Furthermore, both ends of the lifting frame are provided with roller groups that can move synchronously therewith, and when the lifting frame moves along the distribution direction of the positioning arm one, the roller group slides along the inner wall of the positioning arm one.

[0011] Furthermore, the bottom ends of a pair of the limiting arms are connected via a gravity ball, and the gravity ball is located directly below the sampler.

[0012] Furthermore, the counterweight unit includes a second positioning arm arranged on the second extension arm, a second supporting frame is provided on the second positioning arm, a second rotatable winding wheel is provided inside the second supporting frame, and a power motor two is provided on the central axis position of the second winding wheel, and the power motor two is arranged outside the second supporting frame.

[0013] The rope body of the second winding wheel is connected with a weight ball through a second lock buckle, and the weight ball can be located below the water surface and gradually descend as the second winding wheel pays out the line.

[0014] Furthermore, the support frame 1 is provided with a driving gear coaxially distributed with the first winding wheel, and the support frame 1 is provided with a power motor 1 that can control the first winding wheel and the driving gear to rotate synchronously.

[0015] The positioning arm 1 is provided with a driven gear meshing with the driving gear, the vertical support frame is provided with a lifting gear group meshing with the driven gear, and the vertical support frame is installed on the first extension arm through a guide roller frame. As the driven gear rotates, the vertical support frame and the lifting gear group move along the distribution direction of the positioning arm 1.

[0016] Furthermore, the protective structure includes a plurality of reinforcing ribs distributed in parallel, and the reinforcing ribs are connected by two arc rods symmetrically distributed on the front and rear sides of the limiting arm and a bent rod connecting the ends of the two arc rods, and the bent rod has a C-shaped structure.

[0017] Furthermore, the arc rods are each provided with two groups of connecting arc rods, each group of connecting arc rods has two connecting arc rods, and each group of connecting arc rods is directly opposite to the two sides of the limiting arm.

[0018] The connecting arc rod is provided with a pressure spring at one end close to the limiting arm, and the end of the pressure spring is provided with a positioning arc rod, and the positioning arc rod abuts against the surface of the limiting arm.

[0019] In summary, the technical effects and advantages of the present invention are as follows:

[0020] 1. The present invention is provided with a sampling unit and a counterweight unit with adjustable heights. During the sampling process, the counterweight unit can be lowered below the water surface synchronously with the sampling unit to reduce the gravity deviation on both sides of the hull, maintain the balance of the hull, and avoid the hull from deflecting under the traction force of the sampling unit, thereby maintaining the balance and stability of the hull during the sampling operation.

[0021] 2. The sampling unit adopted in the present invention has multiple linearly movable samplers. When the sampler is lowered to a specified depth below the water surface, multiple samplers distributed from top to bottom can implement stratified sampling operations, which is convenient for stratified extraction of water samples in the sampling points, thereby improving the comprehensiveness of the sampling operation and the accuracy of subsequent water sample detection operations.

[0022] 3. After the sampling unit in the present invention is lowered below the water surface, the protective structure can be moved synchronously with it to below the water surface, and an enclosing protective structure is formed on the outer side of the limiting arm and the sampler, which can effectively reduce the impact force of the water flow in the basin water, reduce the influence of the water flow on the stability of the sampler, and further ensure the stability of the sampler in the sampling operation in the basin water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in 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 described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the state when the sampler and the weighted ball of the present invention are moved below the water surface at the same time.

[0026] Figure 3 It is a schematic diagram of the position structure of the first extension arm and the second extension arm of the present invention.

[0027] Figure 4 It is a schematic diagram of the second viewing angle position structure of the first extension arm and the second extension arm of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the sampling unit of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the sampling unit of the present invention from a second viewing angle.

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram of point A in the middle

[0031] Figure 8 It is a schematic diagram of the structure of the counterweight unit of the present invention.

[0032] Fig. 9 It is a schematic diagram of the connection structure between the sampler and the limiting arm of the present invention.

[0033] Fig.10 It is a schematic diagram of the vertical support frame and the reinforcing rib position structure of the present invention.

[0034] Fig.11 For the present invention Fig.10 Enlarged structural diagram at B in the middle.

[0035] In the figure: 1, hull; 2, bracket; 3, first extension arm; 31, first tooth group; 4, second extension arm; 41, second tooth group; 5, driving gear; 6, driving motor; 7, positioning arm one; 71, gravity ball; 8, support frame one; 9, first winding wheel; 10, power motor one; 11, first locking buckle; 12, lifting frame; 121, roller; 13, limiting arm; 14, sampler; 15, positioning arm two; 16, support frame two; 17, second winding wheel; 18, power motor two; 19, second locking buckle; 20, counterweight ball; 21, driving gear; 22, driven gear; 23, guide roller frame; 24, vertical support frame; 25, lifting tooth group; 26, reinforcing ribs; 27, connecting arc rod; 28, pressure spring; 29, positioning arc rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0037] refer to Figure 1 , Figure 2 An underwater stratified multi-sample sampling vessel shown includes a hull 1, a first extension arm 3 and a second extension arm 4 arranged on the hull 1, the first extension arm 3 and the second extension arm 4 are respectively provided with a sampling unit and a counterweight unit with adjustable heights, and the sampling unit and the counterweight unit are respectively located on both sides of the hull 1.

[0038] When the first extension arm 3 and the second extension arm 4 move in opposite directions, the sampling unit and the counterweight unit adjust their distance from the hull 1 until the sampling unit and the counterweight unit reach the designated position outside the hull 1. Then, the sampling unit can be lowered to perform the sampling operation at a designated depth under the water surface. During the sampling operation, in order to maintain the balance of the hull and prevent the hull 1 from deflecting under the traction of the sampling unit, the counterweight unit can be lowered into the water surface to reduce the gravity deviation on both sides of the hull 1, thereby maintaining the balance and stability of the hull 1 during the sampling operation.

[0039] If the flow rate of the water area is too fast, it is easy to affect the stability of the sampling unit. Therefore, the present application also provides a protective structure surrounding the sampling unit, and a vertical support frame 24 that can move synchronously with the protective structure is provided on the protective structure. When the sampling unit is lowered below the water surface, the vertical support frame 24 and the protective structure are lowered synchronously until the protective structure is lowered below the water surface and is located outside the sampling unit to perform protective operations.

[0040] like Figure 3 , Figure 4 As shown, a hull 1 is provided with a bracket 2, a first extension arm 3 and a second extension arm 4 are both provided on the bracket 2, and a first tooth group 31 and a second tooth group 41 are both provided on the first extension arm 3 and the second extension arm 4 in parallel, a driving gear 5 meshing with the first tooth group 31 and the second tooth group 41 is provided in the relative space between the first tooth group 31 and the second tooth group 41, and a driving motor 6 that can drive the driving gear 5 to rotate is provided on the driving gear 5. Driven by the power of the driving motor 6, the driving gear 5 can be rotated to achieve the purpose of driving the first tooth group 31 and the second tooth group 41 to move in opposite directions, and then the first extension arm 3 and the second extension arm 4 can be moved in opposite directions until the sampling unit and the counterweight unit reach the designated position outside the hull 1.

[0041] like Figure 5-7As shown, the sampling unit includes a positioning arm 7 arranged on the first extension arm 3, a support frame 8 is arranged on the positioning arm 7, a first winding wheel 9 is arranged inside the support frame 8, and a steel wire rope is wound on the first winding wheel 9. The rope body of the first winding wheel 9 is connected to a lifting frame 12 through a first lock buckle 11, and a pair of limiting arms 13 are arranged at the bottom end of the lifting frame 12. A plurality of samplers 14 are arranged from top to bottom in a relative space between the pair of limiting arms 13. The sampler 14 used in this application document is an automatic sampler in the prior art, and no further description is given here. The lifting frame 12, the limiting arm 13 and the sampler 14 can gradually descend as the first winding wheel 9 unwinds.

[0042] After multiple samplers 14 are synchronously descended to a specified depth below the water surface, multiple samplers 14 distributed from top to bottom can implement a stratified sampling operation to facilitate stratified extraction of water samples at the sampling points, thereby improving the comprehensiveness of the sampling operation and the accuracy of subsequent water sample detection operations.

[0043] like Fig. 9 As shown, in the process of the sampler 14 descending, in order to maintain the stability of the sampler 14 during movement, both ends of the lifting frame 12 are provided with roller groups 121 that can move synchronously with it. When the lifting frame 12 moves along the distribution direction of the positioning arm 7, the roller group 121 slides along the inner wall of the positioning arm 7. The linearity of the lifting frame 12, the limiting arm 13 and the sampler 14 during the descent process is guaranteed. As the lifting frame 12 gradually descends, the limiting arm 13 gradually slides out of the positioning arm 7 and moves under the water surface, and multiple samplers 14 move to a specified depth under the water surface.

[0044] In waters with a fast flow rate, in order to improve the stability of the limit arm 13 and the sampler 14 during the movement into the water, the bottom end of the limit arm 13 is connected through a gravity ball 71. The gravity ball 71 is located directly below the sampler 14, so that the gravity below the sampler 14 is increased, which can effectively resist the water flow resistance, thereby preventing the sampler 14 and the limit arm 13 from being skewed and shifted due to the impact of the water flow during the descent process, thereby reducing the adverse effects of the fast flow waters on the stable operation of the sampling work.

[0045] like Figure 8As shown, the counterweight unit includes a second positioning arm 15 disposed on the second extension arm 4, a second support frame 16 is disposed on the second positioning arm 15, a rotatable second winding wheel 17 is disposed in the second support frame 16, and a power motor 18 is disposed on the central axis of the second winding wheel 17, and the power motor 18 is disposed outside the second support frame 16. The rope body of the second winding wheel 17 is connected to a counterweight ball 20 through a second lock buckle 19, and the counterweight ball 20 can be located below the water surface and gradually descend as the second winding wheel 17 releases the line. It should be noted that in this application document, the specific weight of the counterweight ball 20 can be determined based on the weight of the sampling unit carried on the other side of the hull 1.

[0046] After the counterweight ball 20 descends to the water surface, the gravity on both sides of the hull 1 tends to be balanced, which can effectively avoid the tilting of the hull 1 caused by the sinking of the sampling unit, improve the stability of the hull 1, and further improve the stability of the sampling unit during the sampling operation, so that the sampling unit can obtain water samples at the specified location more accurately. Embodiment 2:

[0047] like Figure 5-10 As shown, on the basis of Example 1, the support frame 8 is provided with a driving gear 21 coaxially distributed with the first winding wheel 9, and the support frame 8 is provided with a power motor 10 that can control the first winding wheel 9 and the driving gear 21 to rotate synchronously. Driven by the power motor 10, the first winding wheel 9 and the driving gear 21 can rotate synchronously. Since the positioning arm 7 is provided with a driven gear 22 meshing with the driving gear 21, the vertical support frame 24 is provided with a lifting gear set 25 meshing with the driven gear 22, and the vertical support frame 24 is installed on the first extension arm 3 through the guide roller frame 23. Therefore, with the rotation of the driven gear 22, the vertical support frame 24 and the lifting gear set 25 move along the distribution direction of the positioning arm 7.

[0048] The protective structure includes a plurality of parallel distributed reinforcing ribs 26, which are connected by two arc rods symmetrically distributed on the front and rear sides of the limiting arm 13 and a bent rod connecting the ends of the two arc rods, and the bent rod is in a C-shaped structure. The combination of the bent rod and the arc rod can be located outside the limiting arm 13 and the sampler 14 to form an enclosing protective structure, which can effectively reduce the impact of the water flow in the basin water, reduce the influence of the water flow on the stability of the sampler 14 and the limiting arm 13, and further ensure the stability of the limiting arm 13 and the sampler 14 in the sampling operation in the basin water.

[0049] Furthermore, since the vertical support frame 24 connected to the protective structure is always exposed to the water surface, the lifting gear set 25 connected to the vertical support frame 24 is connected to the driven gear 22, thereby further improving the stability of the reinforcement ribs 26 below the water surface and improving the structural strength of the reinforcement ribs 26.

[0050] like Fig.10 , Fig.11 As shown, two groups of connecting arc rods 27 are provided on the arc rods, and the number of each group of connecting arc rods 27 is two, and each group of connecting arc rods 27 is directly opposite to the two sides of the limit arm 13. The connecting arc rods 27 are provided with a pressure spring 28 at one end close to the limit arm 13, and the ends of the pressure springs 28 are provided with positioning arc rods 29, and the positioning arc rods 29 are in contact with the surface of the limit arm 13. When the reinforcing ribs 26 and the limit arm 13 are impacted by water flow, if the reinforcing ribs 26. The limit arm 13 shakes under the action of water flow, the pressure springs 28 can effectively absorb the displacement force of the reinforcing ribs 26 and the limit arm 13, and can make the reinforcing ribs 26 and the limit arm 13 return quickly, further ensuring the stability of the reinforcing ribs 26, the limit arm 13 and the sampler 14.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater stratified multi-sample sampling vessel, characterized in that: The invention comprises a hull (1), a first extension arm (3) and a second extension arm (4) arranged on the hull (1), wherein the first extension arm (3) and the second extension arm (4) are respectively provided with a sampling unit and a counterweight unit with adjustable heights, wherein the sampling unit and the counterweight unit are respectively located on two sides of the hull (1), and when the first extension arm (3) and the second extension arm (4) move in opposite directions, the sampling unit and the counterweight unit can adjust the distance between themselves and the hull (1); It also includes a protective structure surrounding the sampling unit, wherein the protective structure is provided with a vertical support frame (24) that can move synchronously with the sampling unit, and when the sampling unit is lowered below the water surface, the vertical support frame (24) and the protective structure are lowered synchronously until the protective structure is lowered below the water surface; The sampling unit comprises a positioning arm (7) arranged on the first extension arm (3), a support frame (8) being arranged on the positioning arm (7), and a first winding wheel (9) being arranged inside the support frame (8); The rope body of the first winding wheel (9) is connected to a lifting frame (12) via a first lock buckle (11); a pair of limiting arms (13) are provided at the bottom end of the lifting frame (12); a plurality of samplers (14) are provided in a relative space between the pair of limiting arms (13) from top to bottom and are equidistantly distributed; the lifting frame (12), the limiting arms (13) and the samplers (14) can gradually descend as the first winding wheel (9) unwinds the line; The protective structure comprises a plurality of reinforcing ribs (26) distributed in parallel, the reinforcing ribs (26) being connected by two arc rods symmetrically distributed on the front and rear sides of the limiting arm (13) and a bent rod connecting the ends of the two arc rods, the bent rod being a C-shaped structure; The arc rods are each provided with two groups of connecting arc rods (27), each group of connecting arc rods (27) has two connecting arc rods (27), and each group of connecting arc rods (27) is directly opposite to both sides of the limiting arm (13); One end of the connecting arc rod (27) close to the limiting arm (13) is provided with a pressure spring (28), and the end of the pressure spring (28) is provided with a positioning arc rod (29), and the positioning arc rod (29) abuts against the surface of the limiting arm (13).

2. The underwater stratified multi-sample sampling vessel according to claim 1, characterized in that: The hull (1) is provided with a bracket (2), the first extension arm (3) and the second extension arm (4) are both provided on the bracket (2), and the first extension arm (3) and the second extension arm (4) are both provided with a first tooth group (31) and a second tooth group (41) which are distributed in parallel, a driving gear (5) meshing with the first tooth group (31) and the second tooth group (41) is provided in a relative space between the first tooth group (31) and the second tooth group (41), and a driving motor (6) which can drive the driving gear (5) to rotate is provided on the driving gear (5).

3. The underwater stratified multi-sample sampling vessel according to claim 1, characterized in that: Both ends of the lifting frame (12) are provided with roller groups (121) that can move synchronously therewith, and when the lifting frame (12) moves along the distribution direction of the positioning arm (7), the roller groups (121) slide along the inner wall of the positioning arm (7).

4. The underwater stratified multi-sample sampling vessel according to claim 1, characterized in that: The bottom ends of the pair of limit arms (13) are connected via a gravity ball (71), and the gravity ball (71) is located directly below the sampler (14).

5. The underwater stratified multi-sample sampling vessel according to claim 1, characterized in that: The counterweight unit comprises a second positioning arm (15) arranged on the second extension arm (4), a second support frame (16) is arranged on the second positioning arm (15), a rotatable second winding wheel (17) is arranged inside the second support frame (16), a second power motor (18) is arranged at the central axis position of the second winding wheel (17), and the second power motor (18) is arranged outside the second support frame (16); The rope body of the second winding wheel (17) is connected to a weight ball (20) via a second lock buckle (19), and the weight ball (20) can be located below the water surface and gradually descend as the second winding wheel (17) unwinds the line.

6. The underwater stratified multi-sample sampling vessel according to claim 1, characterized in that: The support frame 1 (8) is provided with a driving gear (21) coaxially distributed with the first winding wheel (9), and the support frame 1 (8) is provided with a power motor 1 (10) capable of controlling the first winding wheel (9) and the driving gear (21) to rotate synchronously; The positioning arm 1 (7) is provided with a driven gear (22) meshing with the driving gear (21), the vertical support frame (24) is provided with a lifting gear set (25) meshing with the driven gear (22), and the vertical support frame (24) is mounted on the first extension arm (3) via a guide roller frame (23), and as the driven gear (22) rotates, the vertical support frame (24) and the lifting gear set (25) move along the distribution direction of the positioning arm 1 (7).

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