Layered collection device for bottom mud of rivers and lakes

Abstract

The utility model discloses a layered collection device for bottom mud of rivers and lakes, which comprises a support, a bottom mud collecting device and a bottom mud collecting device, the support comprises a vertically arranged support column and a suspension arm horizontally and rotatably mounted at the top end of the support column, the suspension arm is obliquely arranged upwards, and a pulley is arranged at the top end of the suspension arm; the winch is arranged at the end, close to the supporting column, of the suspension arm, and the winch is driven by a first servo motor; the bottom mud sampler is hung on a steel wire rope of the winch, and the steel wire rope of the winch is wound on the pulley; and the controller is in signal connection with the first servo motor. The device is compact in structure, can be mounted on a ship deck, is convenient to operate, can efficiently and accurately collect river and lake sediment samples, and meets the requirements of scientific research analysis on sample quality and precision.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring sampling equipment, and particularly relates to a device for layered collection of river and lake bottom mud. Background Art

[0002] In the research and protection of river and lake ecosystems, bottom mud, as an important component, plays a key role. Bottom mud not only records the historical information of the water environment, but also directly affects water quality, ecological environment and its biodiversity. In order to deeply understand the composition, structure and pollution status of bottom mud, it is crucial to obtain high-quality bottom mud samples. However, traditional bottom mud collection devices often have defects such as uneven sampling, uncontrollable sampling depth, and inability to perform layered sampling, making it difficult to meet the needs of multi-level and precise analysis. However, when studying the vertical distribution characteristics of river and lake bottom mud, only through precise sampling at multiple layers and depths can the pollutant characteristics of typical sediments in the lake bottom mud be comprehensively revealed, providing accurate basic data for the scientific research and pollution control of the water environment.

[0003] Therefore, aiming at the deficiencies of existing collection devices, it is urgent to develop a device for collecting river and lake bottom mud with the function of multi-depth layered sampling. This device should not only have the ability to adjust the sampling depth and collect samples in layers, but also be able to work stably under various hydrological conditions to ensure the original state and integrity of the collected samples. Through the research and application of this new collection device, it can provide strong technical support for the scientific research of river and lake bottom mud, and further promote the ecological environment restoration and pollution prevention and control work of river and lake water bodies. Summary of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a device for layered collection of river and lake bottom mud to solve the technical problems raised in the background art.

[0005] A device for layered collection of river and lake bottom mud, comprising:

[0006] A bracket, the bracket includes a vertically arranged support column and a boom horizontally and rotatably installed at the top of the support column, the boom is inclined obliquely upward, and a pulley is arranged at the top of the boom;

[0007] A winch, arranged at one end of the boom close to the support column, the winch is driven by a first servo motor;

[0008] A bottom mud sampler, the bottom mud sampler is suspended on the steel wire rope of the winch, and the steel wire rope of the winch is wound around the pulley; and,

[0009] A controller, the controller is signal-connected to the first servo motor; wherein,

[0010] The sediment sampler includes a sampling head and a storage device. The sampling head is detachably installed at the bottom end of the storage device. The storage device includes a storage column and a packaging mechanism. The storage column is provided with a plurality of cavities for storing samples. The top and bottom ends of the cavities are both open. The sampling head is provided with a plurality of sample inlets, and the plurality of sample inlets respectively correspond to and communicate with the bottom ends of the plurality of cavities one by one.

[0011] The packaging mechanism is arranged between the storage column and the sampling head for packaging the bottom end of the cavity.

[0012] Furthermore, the packaging mechanism includes a rotating shaft and a plurality of packaging sheets. A central hole penetrating through it is provided along the length extension direction at the center of the storage column. The rotating shaft is inserted into the central hole. The rotating shaft is rotatably installed in the central hole through a bearing. The rotating shaft is arranged at the top end of the sampling head.

[0013] The plurality of packaging sheets are arranged at intervals around the bottom end of the rotating shaft.

[0014] The top end of the rotating shaft is connected to a second servo motor. The second servo motor is fixedly installed at the top end of the storage column. The second servo motor drives the rotating shaft to rotate so that the plurality of packaging sheets respectively package the bottom ends of the plurality of cavities.

[0015] Furthermore, a end plate is arranged at the bottom end of the support column. The end plate is fixedly connected to the hull deck through bolts.

[0016] Furthermore, a rotating seat is rotatably installed at the top end of the support column through a bearing. The bottom end of the lifting arm is fixedly installed in the rotating seat.

[0017] Furthermore, the rotating seat includes a U-shaped connecting seat and an installation pipe arranged at the bottom of the connecting seat. After the lifting arm is rotatably installed in the connecting seat through a first pin shaft, it is then locked and fixed to the connecting seat through a second pin shaft. The first pin shaft is arranged close to the pulley. The second pin shaft and the first pin shaft are arranged at intervals along the axial direction of the lifting arm.

[0018] The installation pipe is rotatably installed at the top of the support column through a bearing.

[0019] Furthermore, the two sides of the connecting seat are provided with a plurality of relatively penetrating adjustment jacks. The second pin shaft is inserted into one of the adjustment jacks. The distance between the center of each adjustment jack and the axis of the first pin shaft is equal.

[0020] Further, a first convex ring is concentrically arranged on the installation pipe, a second convex ring is arranged on the support column and is vertically opposite to the first convex ring, a plurality of limiting jacks are uniformly distributed on the first convex ring and the second convex ring, and the first convex ring and the second convex ring are limited by a pin inserted into the vertically opposite limiting jacks.

[0021] The beneficial effects of the present utility model are embodied in:

[0022] The device for collecting river and lake bottom mud in layers provided by this application lowers and raises the bottom mud sampler through a winch. The winch is driven by a first servo motor, and the length of the steel wire rope lowered is controlled by counting the number of rotation turns of the first servo motor, so as to control the lowering depth of the bottom mud sampler. After the bottom mud sampler is vertically inserted into the bottom mud, layered sampling of the bottom mud is realized, and the bottom mud sampler can collect 5-10 kg of bottom mud samples at one time for scientific research.

[0023] This device has a compact structure, can be installed on the hull deck, and is easy to operate. It can efficiently and accurately collect river and lake bottom mud samples, meeting the requirements of scientific research analysis for sample quality and accuracy. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0025] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with this application, and are used together with the specification to explain the principles of this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of a device for collecting river and lake bottom mud in layers provided by an embodiment of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the bottom mud sampler provided by an embodiment of the present utility model Figure 1 ;

[0028] Figure 3 It is a schematic structural diagram of the bottom mud sampler provided by an embodiment of the present utility model Figure 2 ;

[0029] Figure 4 It is a schematic structural diagram of the encapsulation mechanism provided by an embodiment of the present utility model.

[0030] The realization of the objectives, functional features, and advantages of this application will be further described in conjunction with embodiments with reference to the accompanying drawings. Through the above-mentioned accompanying drawings, specific embodiments of this application have been shown, and more detailed descriptions will be provided hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0031] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present invention belongs.

[0033] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] As Figure 1 shown, a device for layered collection of river and lake bottom mud provided by the present utility model includes a bracket 1, a winch 5, a bottom mud sampler 7 and a controller 8. The bracket 1 includes a vertically arranged support column 2 and a boom 3 horizontally and rotatably installed at the top of the support column 2. The boom 3 is arranged obliquely upward, and a pulley 4 is arranged at the top of the boom 3. A end plate 9 is arranged at the bottom end of the support column 2, and the end plate 9 is fixedly connected to the ship deck through bolts, so that the device can be stably carried on the ship. The winch 5 is arranged at one end of the boom 3 close to the support column 2, and the winch 5 is driven by a first servo motor 6. The bottom mud sampler 7 is suspended on the steel wire rope of the winch 5, and the steel wire rope of the winch 5 is wound around the pulley 4 for lowering or pulling up the bottom mud sampler 7.

[0038] The controller 8 is in signal connection with the first servo motor 6. The operator controls the rotation speed of the first servo motor 6 through the knob or button on the controller 8, so as to control the wire releasing or wire winding speed of the winch 5. Moreover, the rotation number of turns of the first servo motor 6 can also be controlled through the controller 8, and the wire releasing length of the winch 5 can be controlled, so as to control the lowering depth of the bottom mud sampler 7. In this embodiment, the controller 8 can adopt a single-chip microcomputer with a keypad.

[0039] Specifically, as Figures 2 - 4 shown, the bottom mud sampler 7 includes a sampling head 20 and a storage device. The sampling head 20 is screwed to the bottom end of the storage device to achieve detachable connection. The storage device includes a storage column 21 and a packaging mechanism. A lifting lug is arranged on the storage column 21 for hanging on the steel wire rope of the winch 5.

[0040] A plurality of cavities 22 for sample storage are arranged in the storage column 21. The top and bottom ends of the cavities 22 are both open. A plurality of sample inlets 23 are arranged on the sampling head 20, and the plurality of sample inlets 23 respectively correspond to and communicate with the bottom ends of the plurality of cavities 22 one by one. The packaging mechanism is arranged between the storage column 21 and the sampling head 20 for packaging the bottom ends of the cavities 22.

[0041] The encapsulation mechanism includes a rotating shaft 24 and multiple encapsulation sheets 25; a central hole penetrating through it is provided along the length extension direction of the center of the storage column 21. The rotating shaft 24 is inserted into the central hole, and the rotating shaft 24 is rotatably installed in the central hole through a bearing. The rotating shaft 24 is arranged at the top end of the sampling head 20. The multiple encapsulation sheets 25 are arranged at intervals around the bottom end of the rotating shaft 24.

[0042] The top end of the rotating shaft 24 is connected to the second servo motor 26. The second servo motor 26 is fixedly installed at the top end of the storage column 21. The second servo motor 26 drives the rotating shaft 24 to rotate, so that the multiple encapsulation sheets 25 respectively encapsulate the bottom ends of the multiple cavities 22, preventing the bottom mud from flowing away due to gravity and achieving the encapsulation effect.

[0043] Further, a rotating seat 10 is rotatably installed at the top end of the support column 2 through a bearing, and the bottom end of the boom 3 is fixedly installed in the rotating seat 10. The boom 3 can rotate around the axis of the support column 2 through the rotating seat 10, so as to adjust the orientation of the boom 3 according to the requirements of the bottom mud sampling position.

[0044] In this embodiment, the rotating seat 10 includes a U-shaped connecting seat 11 and an installation pipe 12 arranged at the bottom of the connecting seat 11. After the boom 3 is rotatably installed in the connecting seat 11 through the first pin shaft 13, it is then locked and fixed to the connecting seat 11 through the second pin shaft 14. The first pin shaft 13 is arranged close to the pulley 4, and the second pin shaft 14 and the first pin shaft 13 are arranged at intervals along the axis of the boom 3. The installation pipe 12 is rotatably installed at the top of the support column 2 through a bearing.

[0045] Further, to facilitate adjusting the inclination angle of the boom 3, a plurality of relatively penetrating adjustment jacks 15 are arranged on both sides of the connecting seat 11. The second pin shaft 14 is inserted into one of the adjustment jacks 15, and the distance between the center of each adjustment jack 15 and the axis of the first pin shaft 13 is equal.

[0046] To limit the rotation angle of the rotating seat 10 and prevent the rotating seat 10 from rotating randomly after the angle is adjusted, a first convex ring 16 is concentrically arranged on the installation pipe 12, and a second convex ring 17 opposite to the first convex ring 16 up and down is arranged on the support column 2. A plurality of limit jacks 18 are evenly distributed on the first convex ring 16 and the second convex ring 17. The first convex ring 16 and the second convex ring 17 are limited by a pin 19 inserted into the relatively up and down limit jacks 18.

[0047] The device for layered collection of river and lake bottom mud provided by this application lowers and lifts the bottom mud sampler through a winch. The winch is driven by a first servo motor, and the length of the steel wire rope released is controlled by counting the number of rotation turns of the first servo motor, so as to control the lowering depth of the bottom mud sampler. After the bottom mud sampler is vertically inserted into the bottom mud, layered sampling of the bottom mud is realized. The bottom mud sampler can collect 5 - 10 kg of bottom mud samples at one time for scientific research.

[0048] This device has a compact structure, can be installed on the hull deck, and is easy to operate, capable of efficiently and accurately collecting river and lake bottom sediment samples, meeting the requirements for sample quality and accuracy in scientific research analysis.

[0049] Finally, it should be noted that the technical features of the technical solution of this application can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope recorded in this application.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A device for collecting river and lake sediment stratification, characterized in that: include: A support (1), the support (1) comprising a vertically arranged support column (2) and a suspension arm (3) horizontally rotatably mounted on the top of the support column (2), the suspension arm (3) being arranged obliquely upward, and a pulley (4) being arranged on the top of the suspension arm (3); A hoist (5) is arranged on one end of the boom (3) close to the support column (2), and the hoist (5) is driven by a first servo motor (6); a bottom sediment sampler (7), the bottom sediment sampler (7) being suspended on a steel wire rope of the hoist (5), the steel wire rope of the hoist (5) being wound around the pulley (4); and, A controller (8), the controller (8) being signal-connected to the first servo motor (6); wherein: The bottom sediment sampler (7) comprises a sampling head (20) and a storage device, wherein the sampling head (20) is detachably mounted on the bottom end of the storage device; the storage device comprises a storage column (21) and a packaging mechanism, wherein a plurality of cavities (22) for containing samples are arranged in the storage column (21), wherein the top and bottom ends of the cavities (22) are both open, and a plurality of injection ports (23) are arranged on the sampling head (20), wherein the plurality of injection ports (23) correspond to and communicate with the bottom ends of the plurality of cavities (22) one by one; The packaging mechanism is arranged between the storage column (21) and the sampling head (20) and is used to package the bottom end of the cavity (22).

2. A river and lake bottom mud stratification collection device according to claim 1, characterized in that: The packaging mechanism comprises a rotating shaft (24) and a plurality of packaging sheets (25); a central hole is provided at the center of the storage column (21) along its length extension direction, the rotating shaft (24) is inserted into the central hole, the rotating shaft (24) is rotatably mounted in the central hole via a bearing, and the rotating shaft (24) is arranged at the top end of the sampling head (20); A plurality of packaging sheets (25) are arranged at intervals around the bottom end of the rotating shaft (24); The top end of the rotating shaft (24) is connected to a second servo motor (26), and the second servo motor (26) is fixedly mounted on the top end of the storage column (21). The second servo motor (26) drives the rotating shaft (24) to rotate so that the plurality of encapsulation sheets (25) respectively encapsulate the bottom ends of the plurality of cavities (22).

3. A river and lake bottom mud stratification collection device according to claim 1, characterized in that: An end plate (9) is provided at the bottom end of the support column (2), and the end plate (9) is fixedly connected to the hull deck by bolts.

4. A river and lake bottom mud stratification collection device according to claim 1, characterized in that: A rotating seat (10) is rotatably mounted on the top end of the support column (2) via a bearing, and the bottom end of the suspension arm (3) is fixedly mounted in the rotating seat (10).

5. A river and lake bottom mud stratification collection device according to claim 4, characterized in that: The rotating seat (10) comprises a U-shaped connecting seat (11) and a mounting tube (12) arranged at the bottom of the connecting seat (11); the boom (3) is rotatably mounted in the connecting seat (11) via a first pin shaft (13), and then locked and fixed with the connecting seat (11) via a second pin shaft (14); the first pin shaft (13) is arranged close to the pulley (4), and the second pin shaft (14) and the first pin shaft (13) are arranged at intervals along the axial direction of the boom (3); The mounting tube (12) is rotatably mounted on the top of the support column (2) via a bearing.

6. A river and lake bottom mud stratification collection device according to claim 5, characterized in that: The two sides of the connection seat (11) are provided with a plurality of adjustment holes (15) which are relatively penetrated, the second pin shaft (14) is inserted into one of the adjustment holes (15), and the distance between the center of each adjustment hole (15) and the axis center of the first pin shaft (13) is equal.

7. The device for collecting river and lake sediment layers according to claim 5, characterized in that: A first convex ring (16) is coaxially arranged on the mounting tube (12), and a second convex ring (17) is arranged on the support column (2) and is opposite to the first convex ring (16) in upper and lower directions. A plurality of limiting plug holes (18) are evenly distributed on the first convex ring (16) and the second convex ring (17). The first convex ring (16) and the second convex ring (17) are limited by pins (19) inserted into the limiting plug holes (18) opposite to each other in upper and lower directions.

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