A river sediment pollutant sampling tool

Abstract

The utility model provides a kind of river bottom mud pollutant sampling tool, belong to ecological restoration technical field, including support assembly, including fixed base, carousel is rotatably installed in the fixed base end part, vertical column is fixedly connected in the carousel end part, main electric push rod is hinged in the vertical column end part, and transmission wheel is installed in the main electric push rod output shaft end part;Sampling assembly, including fixedly connected in the main electric push rod side wall fixed part, carousel is rotatably installed in the fixed part side wall, pull rope is adapted to install in the carousel middle, lifting appliance is fixedly connected in the pull rope end part, and sampling bucket is inserted in the lifting appliance middle.The utility model has the beneficial effects of: it can be pitch angle adjustment, adapt to the scene of different water depth, cope with water level fluctuation caused by water flow impact, improve sampling precision of complex environment bottom mud and river water completely separate and not loss sample, ensure that detection result truly reflects bottom mud pollutant concentration.

Description

Technical Field

[0001] This utility model belongs to the field of ecological restoration technology, specifically relating to a tool for sampling pollutants in river sediment. Background Technology

[0002] River sediments, as the "material reservoir" of aquatic ecosystems, carry 70%-90% of pollutants in water bodies (such as heavy metals, persistent organic matter, and nutrients). The content and distribution of these pollutants are the core basis for water environment quality assessment, pollution source tracing, and the formulation of ecological restoration plans.

[0003] In practical applications, existing river sediment sampling tools often employ a manual method of carrying the sampler and lowering the rope. On the one hand, the sampler is heavy and requires multiple people to carry it to the sampling point, especially in situations with steep riverbanks or swaying boats, which is labor-intensive and prone to falls. On the other hand, when manually lowering the rope, it is impossible to accurately control the sampling depth, requiring repeated lifting and adjustment, which takes a long time for each sampling and cannot meet the needs of simultaneous sampling at multiple points in a large-scale watershed. Utility Model Content

[0004] The purpose of this invention is to provide a tool for sampling pollutants in river sediment, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A tool for sampling pollutants in river sediment, comprising, The support assembly includes a fixed base, a turntable rotatably mounted at the end of the fixed base, a column fixedly connected to the end of the turntable, a main electric push rod hinged to the end of the column, and a transmission wheel mounted at the end of the output shaft of the main electric push rod. The sampling assembly includes a fixing member fixedly connected to the side wall of the main electric push rod, a reel rotatably mounted on the side wall of the fixing member, a pull rope adapted to be mounted in the middle of the reel, a lifting device fixedly connected to the end of the pull rope, and a sampling bucket inserted into the middle of the lifting device. The side wall of the drive wheel is in rolling contact with the pull rope, and the sampling bucket extends to the front of the main electric push rod.

[0006] As a preferred embodiment of this utility model, the lifting device includes a connector fixedly connected to the end of the pull rope, a pull rod hinged to the end of the connector, a clamping rod hinged to the end of the pull rod, and a base hinged to the end of the clamping rod. The end of the sampling bucket is inserted into the center of the base, and the clamping rods are symmetrically arranged on the outside of the sampling bucket.

[0007] As a preferred embodiment of this utility model, the side wall of the clamping rod is connected to a clamping block by bolts, the clamping block is clamped to the side wall of the sampling barrel, and the inner side of the clamping block is provided with an arc-shaped clamping groove for use with the sampling barrel.

[0008] As a preferred embodiment of the present invention, the sampling component further includes a support plate adapted to the lower end of the main electric push rod, and a positioning seat fixedly connected to the end of the support plate, wherein the end of the positioning seat is provided with an avoidance groove that cooperates with the bottom of the base.

[0009] As a preferred embodiment of this utility model, the bottom of the sampling bucket is provided with a through hole, and the side wall of the base is provided with a drainage groove that cooperates with the through hole at the bottom of the sampling bucket, and the drainage groove on the side wall of the base extends to the bottom of the inner side of the base.

[0010] In a preferred embodiment of this utility model, the side wall of the fixing member is connected to a winding motor by bolts, and the end of the output shaft of the winding motor is connected to the central shaft of the reel by a coupling.

[0011] In a preferred embodiment of this utility model, an auxiliary electric push rod is hinged to the side wall of the column, and the end of the auxiliary electric push rod is hinged to the side wall of the main electric push rod.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: the support component enables real-time adjustment of the sampling orientation, allowing for pitch angle adjustment to adapt to different water depths; the height of the sampling component can be finely adjusted to cope with water level fluctuations caused by water flow impact; the sampling position can be calibrated in real time without disassembly, improving sampling accuracy in complex environments; it can tightly fix the sampling bucket, preventing the bucket from shaking or falling off during sampling, reducing safety risks such as falling from the riverbank or rope breakage, and is especially suitable for sampling scenarios on steep riverbanks or boats. The collaborative design of the sampling bucket and the base achieves complete separation of bottom sediment from river water without sample loss: the through hole at the bottom of the sampling bucket allows for rapid drainage of the upper river water, and the drainage channel of the base extends along the inner bottom to prevent river water from accumulating in the base, resulting in a high mud-water separation rate, reducing sample dilution, and ensuring that the test results accurately reflect the concentration of pollutants in the bottom sediment; the size design of the through hole and drainage channel can prevent the loss of bottom sediment particles (especially sticky bottom sediment), improving sample integrity and meeting sample preservation requirements. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a front structural diagram of the present invention; Figure 4 This is a side view of the present invention.

[0014] In the diagram: 100, Support assembly; 101, Fixed base; 102, Turntable; 103, Column; 104, Main electric push rod; 105, Transmission wheel; 106, Auxiliary electric push rod; 200, Sampling assembly; 201, Fixing component; 202, Reel; 203, Pull rope; 204, Lifting device; 2041, Connecting component; 2042, Pull rod; 2043, Clamping rod; 2044, Base support; 2045, Clamping block; 2046, Support plate; 2047, Positioning seat; 205, Sampling bucket; 206, Winding motor. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figure 1-4 This embodiment of the present invention provides a river sediment pollutant sampling tool, comprising: The support assembly 100 includes a fixed base 101, a turntable 102 rotatably mounted at the end of the fixed base 101, a column 103 fixedly connected to the end of the turntable 102, a main electric push rod 104 hinged to the end of the column 103, and a transmission wheel 105 mounted at the end of the output shaft of the main electric push rod 104. The sampling assembly 200 includes a fixing member 201 fixedly connected to the side wall of the main electric push rod 104, a reel 202 rotatably mounted on the side wall of the fixing member 201, a pull rope 203 adapted to be mounted in the middle of the reel 202, a lifting device 204 fixedly connected to the end of the pull rope 203, and a sampling bucket 205 inserted in the middle of the lifting device 204. The side wall of the drive wheel 105 is in rolling contact with the pull rope 203, and the sampling bucket 205 extends to the front of the main electric push rod 104.

[0019] The fixed base 101 serves as the connection carrier between the device and the ground / ship hull (it can be fixed by expansion bolts or counterweights). The turntable 102 is rotatably mounted on its end via bearings. The turntable 102 can rotate 360° horizontally around the central axis of the fixed base 101, driving the upper column 103 and sampling components to rotate synchronously, thereby achieving horizontal adjustment of the sampling position. A positioning pin (not marked in the figure) can be set at the rotatable connection between the turntable 102 and the fixed base 101. After rotating to the target position, the positioning pin is inserted to prevent the turntable from shifting due to water flow impact during sampling, thus ensuring the stability of the sampling position. The column 103 is vertically fixed to the end of the turntable 102. Its top end is hinged to the cylinder end of the main electric push rod 104 via a hinge. The main electric push rod 104 can tilt and rotate up and down around the hinge point to adjust the tilt angle of the sampling component 200 (e.g., tilting it downwards to align with the sampling point). A transmission wheel 105 is installed at the output shaft end of the main electric push rod 104. The transmission wheel 105 is a guide wheel structure, and its side wall makes rolling contact with the pull rope 203 of the sampling component to change the direction of force on the pull rope and avoid direct friction between the pull rope and the end of the main electric push rod, which would cause wear. The fixing member 201 is fixed to the cylinder side wall of the main electric push rod 104 by bolts. The side wall is rotatably mounted with a reel 202 via bearings. The reel 202 is a cylindrical rope winding structure, with the pull rope 203 (made of high-strength nylon rope or steel wire rope, with corrosion resistance and strong load-bearing capacity) wound in the middle. Specifically, the lifting device 204 includes a connector 2041 fixedly connected to the end of the pull rope 203, a pull rod 2042 hinged to the end of the connector 2041, a locking rod 2043 hinged to the end of the pull rod 2042, and a base support 2044 hinged to the end of the locking rod 2043. The end of the sampling bucket 205 is inserted into the center of the base support 2044, and the locking rods 2043 are symmetrically arranged on the outside of the sampling bucket 205.

[0020] The lifting device 204 serves as the fixing and support structure for the sampling bucket. The connector 2041 is fixed to the end of the pull rope 203, and its lower end is symmetrically hinged to two pull rods 2042. The lower end of the pull rods 2042 is hinged to the clamping rods 2043, which are symmetrically arranged on the outside of the sampling bucket 205. The bottom support 2044 is hinged to the lower end of the clamping rods 2043 and is disc-shaped. The lower end of the sampling bucket 205 is inserted into the center of the bottom support 2044 to provide bottom support for the sampling bucket, ensuring that the sampling bucket sinks vertically to the river bottom and avoiding tilting that could cause the bottom sediment sample to spill.

[0021] Furthermore, a locking block 2045 is bolted to the side wall of the locking rod 2043. The locking block 2045 is engaged with the side wall of the sampling barrel 205. An arc-shaped locking groove is provided on the inner side of the locking block 2045 to cooperate with the sampling barrel 205.

[0022] The inner side of the lever 2043 is connected to the block 2045 by bolts. The inner side of the block 2045 is provided with an arc-shaped groove that fits the outer wall of the sampling bucket 205. The arc-shaped groove can fit tightly against the side wall of the sampling bucket to prevent the sampling bucket from shaking or falling off during sinking / lifting. Furthermore, the sampling assembly 200 also includes a support plate 2046 adapted to the lower end of the main electric push rod 104, and a positioning seat 2047 fixedly connected to the end of the support plate 2046. The end of the positioning seat 2047 is provided with a clearance groove that cooperates with the bottom of the base 2044.

[0023] The support plate 2046 is fitted and installed below the end of the main electric push rod 104 (it can be fixed to the main electric push rod with bolts), and the end of the support plate 2046 is fixedly connected to the positioning seat 2047. The end of the positioning seat 2047 is provided with a relief groove that fits the bottom of the base 2044. Before the sampling bucket is lowered, the base 2044 can be placed in the relief groove of the positioning seat 2047 to provide temporary support for the sampling bucket, prevent the sampling bucket from shaking due to the slack of the pull rope, and ensure the initial position below is stable.

[0024] Preferably, the sampling bucket 205 has a through hole at the bottom, and the bottom support 2044 has a drain groove on its side wall that is used in conjunction with the through hole at the bottom of the sampling bucket 205, and the drain groove on the side wall of the bottom support 2044 extends to the bottom of the inner side of the bottom support 2044.

[0025] When the sampling bucket sinks to the bottom of the river to collect bottom sediment, the upper river water can flow into the bottom support 2044 through the through hole at the bottom of the sampling bucket, and then be discharged through the drainage trough, thus achieving mud-water separation and ensuring that the collected sample is mainly bottom sediment, reducing the dilution of the sample concentration by the river water.

[0026] It should be noted that the side wall of the fixing component 201 is connected to the winding motor 206 by bolts, and the end of the output shaft of the winding motor 206 is connected to the central shaft of the reel 202 by a coupling.

[0027] The winding motor 206 is bolted to the side wall of the fixing part 201. Its output shaft end is connected to the central shaft of the reel 202 via a coupling. When the winding motor rotates forward, it drives the reel to release the rope, causing the lower lifting device 204 and sampling bucket 205 to sink. When it rotates in reverse, it drives the reel to retract the rope, lifting the sampling bucket after collecting bottom sediment to the water surface, providing a power source for sampling.

[0028] Preferably, a secondary electric push rod 106 is hinged to the side wall of the column 103, and the end of the secondary electric push rod 106 is hinged to the side wall of the main electric push rod 104.

[0029] The cylinder end of the auxiliary electric push rod 106 is hinged to the side wall of the column 103 (located below the hinge point of the main electric push rod), and the output shaft end is hinged to the cylinder side wall of the main electric push rod 104. The auxiliary electric push rod drives the main electric push rod to rotate around the hinge point at the top of the column through extension and retraction, thereby achieving control of the pitch angle.

[0030] During use, according to sampling requirements, push the turntable 102 to rotate around the fixed base 101 to adjust the sampling component 200 to be directly above the target sampling area; after rotating into place, insert the positioning pin to fix the turntable and prevent horizontal deviation; start the auxiliary electric push rod 106, its output shaft extends or retracts, driving the main electric push rod 104 to rotate up and down around the hinge point at the top of the column 103, so that the output shaft of the main electric push rod (and the end transmission wheel 105) tilts down to the water surface to a preset angle; if it is necessary to fine-tune the vertical height of the sampling component, the main electric push rod 104 can be started, its output shaft extends or retracts, driving the transmission wheel 105 and the sampling component below to rise and fall synchronously, further adapting to the sampling requirements of different water depths, and avoiding the sampling bucket not being able to touch the bottom due to the water depth being too shallow or the pull rope being too slack due to the water depth being too deep; The sampling bucket 205 is placed in the center of the base 2044. The locking block 2045 on the inner side of the locking rod 2043 fits against the side wall of the sampling bucket through the arc-shaped locking groove, thus fixing the sampling bucket. The base 2044 is placed in the clearance groove of the positioning seat 2047, completing the positioning support before sampling. The winding motor 206 is started to rotate forward, driving the reel 202 to release the pull rope 203. The lifting device 204 and the sampling bucket 205 sink under the action of gravity. The pull rope 203 slides along the side wall of the transmission wheel 105, changing the direction of force to ensure that the sampling bucket sinks vertically. When the sampling bucket touches the riverbed... Riverbed sediment enters the sampling bucket under its own weight and sinking inertia, while the upper river water is discharged through the bottom hole of the sampling bucket and the drainage channel of the bottom support 2044. After the sediment collection is completed, the winding motor 206 is started to reverse, driving the reel 202 to retrieve the pull rope 203, and the lifting device 204 and the sampling bucket 205 rise synchronously. During the rise, the arc-shaped groove of the locking block 2045 continuously fixes the sampling bucket to prevent sample leakage. Once the sampling bucket rises above the water surface, the support components are adjusted to move it to the shore or the hull, and the sampling bucket can be removed to complete the sediment sample recovery.

[0031] In summary, the support components enable real-time adjustment of the sampling orientation, allowing for pitch angle adjustment to adapt to different water depths. The height of the sampling components can be finely adjusted to handle water level fluctuations caused by water flow. The sampling position can be calibrated in real-time without disassembly, improving sampling accuracy in complex environments. The components also provide a tight hold to the sampling bucket, preventing it from shaking or falling off during sampling and reducing safety risks such as falling from the riverbank or rope breakage. This is particularly suitable for sampling on steep riverbanks or from boats. The collaborative design of the sampling bucket and base ensures complete separation of sediment from river water without sample loss: the bottom opening of the sampling bucket allows for rapid drainage of upper river water, and the 2044 drainage channel in the base extends along the inner bottom to prevent water accumulation. This high sediment-water separation rate reduces sample dilution and ensures that the test results accurately reflect the concentration of pollutants in the sediment. The size design of the opening and drainage channel prevents sediment particle loss (especially sticky sediment), improving sample integrity and meeting sample preservation requirements.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0034] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tool for sampling pollutants in river sediment, characterized in that: include, The support assembly (100) includes a fixed base (101), a turntable (102) rotatably mounted on the end of the fixed base (101), a column (103) fixedly connected to the end of the turntable (102), a main electric push rod (104) hinged to the end of the column (103), and a transmission wheel (105) mounted on the end of the output shaft of the main electric push rod (104). The sampling assembly (200) includes a fixing member (201) fixedly connected to the side wall of the main electric push rod (104), a reel (202) rotatably mounted on the side wall of the fixing member (201), a pull rope (203) adapted to be mounted in the middle of the reel (202), a lifting device (204) fixedly connected to the end of the pull rope (203), and a sampling bucket (205) inserted in the middle of the lifting device (204). The side wall of the drive wheel (105) is in rolling contact with the pull rope (203), and the sampling bucket (205) extends to the front of the main electric push rod (104).

2. The river sediment pollutant sampling tool according to claim 1, characterized in that: The lifting device (204) includes a connector (2041) fixedly connected to the end of the pull rope (203), a pull rod (2042) hinged to the end of the connector (2041), a clamping rod (2043) hinged to the end of the pull rod (2042), and a base (2044) hinged to the end of the clamping rod (2043). The end of the sampling bucket (205) is inserted into the center of the base (2044), and the clamping rod (2043) is symmetrically arranged on the outside of the sampling bucket (205).

3. The river sediment pollutant sampling tool according to claim 2, characterized in that: The side wall of the clamping rod (2043) is connected to a clamping block (2045) by bolts. The clamping block (2045) is clamped to the side wall of the sampling bucket (205). The inner side of the clamping block (2045) is provided with an arc-shaped groove that cooperates with the sampling bucket (205).

4. A river sediment pollutant sampling tool according to claim 3, characterized in that: The sampling assembly (200) also includes a support plate (2046) adapted to the lower end of the main electric push rod (104), and a positioning seat (2047) fixedly connected to the end of the support plate (2046), wherein the end of the positioning seat (2047) is provided with a clearance groove that cooperates with the bottom of the base (2044).

5. A river sediment pollutant sampling tool according to claim 4, characterized in that: The sampling bucket (205) has a through hole at the bottom, and the base (2044) has a drain groove on its side wall that works in conjunction with the through hole at the bottom of the sampling bucket (205), and the drain groove on the side wall of the base (2044) extends to the bottom of the inner side of the base (2044).

6. A river sediment pollutant sampling tool according to claim 5, characterized in that: The side wall of the fixing member (201) is connected to a winding motor (206) by bolts, and the output shaft end of the winding motor (206) is connected to the central shaft of the reel (202) via a coupling.

7. A river sediment pollutant sampling tool according to claim 6, characterized in that: The column (103) has a secondary electric push rod (106) hinged to its side wall, and the end of the secondary electric push rod (106) is hinged to the side wall of the main electric push rod (104).

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