CN211317841U - Self-sealing type sediment sampler - Google Patents

Abstract

The utility model discloses a self-sealing bottom mud sampler, which relates to the technical field of underwater mud sampling tools and comprises a sampling pipe, wherein the inner walls of the two opposite sides of the lower end of the sampling pipe are provided with openings, and the top end of each opening is hinged with a movable plate; a collecting cylinder is movably arranged below the sampling pipe; a fixed cavity is arranged above the sampling pipe, a crankshaft is arranged in the fixed cavity in the horizontal direction, and a movable sleeve is movably arranged at the bent part of the crankshaft; a guide rod is arranged in the vertical middle of the sampling tube, a movable sleeve rod is sleeved outside the guide rod, and the sampling tube penetrates through the upper part of the movable sleeve rod and is connected with the movable sleeve; sliding plates are arranged on two sides of the outer wall below the movable sleeve rod, push-pull rods are hinged to two sides of each sliding plate relative to the position of the movable plate, and the push-pull rods are hinged to the movable plate. The utility model discloses the leakproofness is strong, and collection efficiency is high.

Description

A self-sealing sediment sampler

technical field

The utility model relates to the technical field of underwater mud sampling tools, in particular to a self-sealing bottom mud sampler.

Background technique

At present, pollutants enter the water body through atmospheric deposition, waste water discharge, rainwater leaching and scouring, and finally deposit in the sediment and gradually enrich, causing the sediment to be seriously polluted. At the same time, the content of nutrients, heavy metals and organic pollutants in the surface of the sediment is relatively high, which makes the pollutants tend to be released to the water body, which can pose a threat to the water body quality and aquatic ecosystem.

In order to study the law of accumulation, distribution, transformation and migration of pollutants discharged into the water body in the sediment, and to understand the pollutant content of the sediment and the release intensity of the pollutants, it is necessary to collect sediment samples, in order to determine the depth of dredging . After the existing bottom mud sampler takes the bottom mud sample, it must first pass through the sewage layer and then collect the sludge at the bottom, so that the collected sludge is easy to flow out during the lifting process, which greatly increases the difficulty of sampling, resulting in There is a large error in sampling, which is time-consuming and labor-intensive, and reduces work efficiency.

SUMMARY OF THE INVENTION

In view of the above problems, the present utility model provides a self-sealing type sediment sampler, comprising a sampling pipe, the inner walls of the opposite two sides of the lower end of the sampling pipe are provided with openings, and the top of the opening is hinged with a movable plate;

A collection tube is movably arranged below the sampling tube;

A fixed cavity is arranged above the sampling tube, a crankshaft is arranged in the horizontal direction in the fixed cavity, and a movable sleeve is movably arranged at the bend of the crankshaft;

A guide rod is arranged in the vertical middle of the sampling pipe, a movable sleeve rod is arranged on the outer casing of the guide rod, and the upper part of the movable sleeve rod penetrates the sampling pipe and is connected with the movable sleeve through a movable joint;

Two sides of the outer wall below the moving sleeve rod are provided with sliding plates, and push-pull rods are hinged on opposite sides of the sliding plate relative to the position of the movable plate, and the push-pull rods are hinged with the movable plate.

Further, the collection cylinder and the sampling tube are connected by threads, and the collection cylinder is fixed at the position of the sampling tube, which is located below the opening.

Further, the crankshaft is externally connected to a rotating handle, and a rubber pad with anti-skid patterns is arranged on the rotating handle.

Further, a limiting block is arranged below the guide rod.

Further, when the crankshaft rotates to the lowest point, the moving sleeve rod drives the movable plate to seal the opening.

Further, a pointed tip is provided below the collection tube.

The advantages of the utility model are as follows: the structure is reasonable and the operation is simple. Through the rotation of the rotating crankshaft, when collecting, the movable sleeve rod moves upward on the guide rod, the movable plate is opened on the opening, and the bottom mud enters the collecting cylinder. The movable sleeve rod moves down on the guide rod, and the movable plate seals the opening, which is convenient for collection, improves the sealing performance after collecting sediment, saves time and effort, and ensures the working efficiency of collecting sediment.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present utility model will be described in further detail below with reference to the drawings.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments of the present invention and descriptions thereof are used to explain the present invention and do not constitute an improper limitation of the present invention.

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the appearance drawing of the sampling tube and the collecting cylinder of the present utility model;

FIG. 3 is a schematic structural diagram of the sampling tube and the collecting cylinder of the present invention.

Reference number:

1 is the sampling tube, 2 is the opening, 3 is the movable plate, 4 is the collection tube, 5 is the fixed cavity, 6 is the crankshaft, 7 is the movable sleeve, 8 is the guide rod, 9 is the movable sleeve rod, 10 is the sliding plate, 11 is a push-pull rod, 12 is a rotating handle, 13 is a limit block, and 14 is a pointed tip.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

Referring to Figures 1 to 3, as shown in Figures 1 to 3, a self-sealing sediment sampler includes a sampling tube 1, and openings 2 are formed on the inner walls of opposite sides of the lower end of the sampling tube 1, and the top of the opening 2 is hinged with a movable board 3;

A collection tube 4 is movably arranged below the sampling tube 1;

A fixed cavity 5 is arranged above the sampling tube 1, a crankshaft 6 is arranged in the horizontal direction in the fixed cavity 5, and a movable sleeve 7 is movably arranged at the bend of the crankshaft 6;

A guide rod 8 is provided in the vertical middle of the sampling pipe 1, and the outer casing of the guide rod 8 is provided with a movable sleeve rod 9, and the upper part of the movable sleeve rod 9 penetrates the sampling pipe 1 and is connected with the movable sleeve 7 through a movable joint;

Sliding plates 10 are arranged on both sides of the outer wall below the movable sleeve rod 9, and push-pull rods 11 are hinged on the opposite sides of the sliding plate 10 at the position of the movable plate 3. The push-pull rods 11 are hinged with the movable plate 3 to facilitate opening 2 and closing the opening by 2 pairs of bottom mud are sealed and collected into the collection cylinder 4.

In the self-sealing bottom mud sampler provided by the present invention, the crankshaft 6 is rotated by turning the handle 12 , the movable sleeve rod 9 and the sliding plate 10 are driven to move down on the guide rod 8 through the movable sleeve 7 , and the push-pull rod 11 is pushed to the movable plate 3 . Rotate on the sampling tube 1, seal the opening 2, and set the sampling tube 4 under the sampling tube 1; sink the sampling tube 1 into the water body as a whole, and when the sampling depth is reached, turn the handle 12 to drive the crankshaft 6 to rotate, and The movable sleeve rod 9 moves upward on the guide rod 8, so that the push-pull rod 11 is driven by the sliding plate 10 to rotate the two movable plates 3 into the sampling tube 1, and then the test port 2 is opened to collect the bottom mud. Collected in the sampling tube 4; after the collection is completed, turn the rotary handle 12 again to seal the opening 2 with the movable plate 3, and then seal the sampling tube 1 as a whole, lift the sampling tube 1, and remove the sampling tube 4 from the sampling tube 1. Remove to complete acquisition.

In an embodiment of the present invention, the collecting cylinder 4 and the sampling pipe 1 are connected by threads, and the collecting cylinder 4 is fixed at the position of the sampling pipe 1, and is located below the opening 2, so as to facilitate the collection of the bottom mud collected in the collecting cylinder 4. Easy to take out.

In an embodiment of the present invention, the crankshaft 6 is externally connected to the rotating handle 12 , and the rotating handle 12 is provided with a rubber pad with anti-skid patterns to increase frictional force, improve the rotating strength, and ensure the opening angle of the movable plate 3 at the opening 2 .

In an embodiment of the present invention, a limiting block 13 is arranged below the guide rod 8 to prevent the sliding plate 10 from falling from the guide rod 8 .

In an embodiment of the present invention, when the crankshaft 6 rotates to the lowest point, the movable sleeve rod 9 drives the movable plate 3 to seal the opening 2 , thereby improving the sealing performance of the movable plate 3 to the opening 2 .

In an embodiment of the present invention, a pointed tip 14 is provided below the collecting cylinder 4 to facilitate the sinking of the sampling tube 1 in the water body during sampling.

In the self-sealing bottom mud sampler provided by the present invention, the crankshaft 6 is rotated by turning the handle 12 , the movable sleeve rod 9 and the sliding plate 10 are driven to move down on the guide rod 8 through the movable sleeve 7 , and the push-pull rod 11 is pushed to the movable plate 3 . Rotate on the sampling tube 1, seal the opening 2, and set the sampling tube 4 under the sampling tube 1; sink the sampling tube 1 into the water body as a whole, and when the sampling depth is reached, turn the handle 12 to drive the crankshaft 6 to rotate, and The movable sleeve rod 9 moves upward on the guide rod 8, so that the push-pull rod 11 is driven by the sliding plate 10 to rotate the two movable plates 3 into the sampling tube 1, and then the test port 2 is opened to collect the bottom mud. Collected in the sampling tube 4; after the collection is completed, turn the rotary handle 12 again to seal the opening 2 with the movable plate 3, and then seal the sampling tube 1 as a whole, lift the sampling tube 1, and remove the sampling tube 4 from the sampling tube 1. Remove to complete acquisition.

The advantages of the utility model: reasonable structure, simple operation, through the rotation of the rotating crankshaft 6, when collecting, the moving sleeve rod 9 moves upward on the guide rod 8, the movable plate 3 is opened on the opening 2, and the bottom mud enters the collecting cylinder In 4, after the collection is completed, the movable sleeve rod 9 moves down on the guide rod 8, and the movable plate 3 seals the opening 2, which is convenient for collection, improves the sealing performance after collecting the bottom mud, saves time and labor, and ensures the working efficiency of collecting the bottom mud. .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (6)

1. A self-sealing bottom mud sampler, characterized in that it comprises a sampling pipe (1), and openings (2) are formed on the inner walls of the opposite sides of the lower end of the sampling pipe (1), and the top of the opening (2) is hinged There are movable boards (3); A collection tube (4) is movably arranged below the sampling tube (1); A fixed cavity (5) is arranged above the sampling tube (1), a crankshaft (6) is arranged in the horizontal direction in the fixed cavity (5), and a movable sleeve (7) is movably arranged at the bend of the crankshaft (6). ; A guide rod (8) is provided in the vertical middle of the sampling pipe (1), and a movable sleeve rod (9) is provided on the outer casing of the guide rod (8), and the upper part of the movable sleeve rod (9) penetrates the sampling pipe (1), and connected with the movable sleeve (7) through a movable joint; Sliding plates (10) are arranged on both sides of the lower outer wall of the movable sleeve rod (9), and push-pull rods (11) are hinged on opposite sides of the sliding plate (10) relative to the position of the movable plate (3). The pull rod (11) is hinged with the movable plate (3). 2. The self-sealing sediment sampler according to claim 1, characterized in that, the collection cylinder (4) and the sampling pipe (1) are connected by threads, and the collection cylinder (4) is fixed on the sampling pipe (1), located below the opening (2). 3 . The self-sealing bottom mud sampler according to claim 1 , wherein the crankshaft ( 6 ) is externally connected to a rotating handle ( 12 ), and the rotating handle ( 12 ) is provided with a rubber pad with anti-skid patterns. 4 . . 4 . The self-sealing bottom mud sampler according to claim 1 , wherein a limiting block ( 13 ) is arranged below the guide rod ( 8 ). 5 . 5. The self-sealing sediment sampler according to claim 1, characterized in that, when the crankshaft (6) rotates to the lowest point, the movable sleeve rod (9) drives the movable plate (3) to align the The opening (2) is sealed. 6 . The self-sealing bottom mud sampler according to claim 1 , characterized in that a pointed tip ( 14 ) is provided under the collecting cylinder ( 4 ). 7 .

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