Underwater environment sampling cylinder and sampling device

Abstract

The utility model relates to the technical field of soil sampling, and discloses an underwater environment sampling cylinder and a sampling device, the sampling cylinder comprises an inner cylinder, an outer cylinder and a cylinder cover; the inner cylinder sleeves the inner side of the outer cylinder; an annular groove is formed in a gap between the inner cylinder and the outer cylinder; an annular sealing block is fixedly mounted on the lower surface of the cylinder cover; the annular sealing block is nested in the annular groove; a handle is arranged at the top of a cover body of the barrel cover; a rotating part is arranged at the bottom of a cover body of the barrel cover; a plurality of turbulent flow blades are uniformly distributed on the periphery of the rotating part; a cover body of the barrel cover is provided with a water and sand flowing-in window; and a plurality of sieve holes are formed in the cylinder wall and the cylinder bottom of the inner cylinder. After water and sand enter from the water and sand flow-in window, the water and the sand which enter the water and sand flow-in window are more orderly when passing through the sieve holes through the turbulent flow blades, the inverted-circular-truncated-cone-shaped inner barrel is beneficial to flowing and sieving of the underwater sand, and the sieving efficiency is improved; and after the suspended sand is screened by the inner barrel, the sand screening plate can further screen out finer particles, so that the screening precision is improved, and finer suspended sand enrichment is realized.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically to an underwater suspended sand enrichment sampling tube and sampling device. Background Technology

[0002] Underwater suspended sediment sampling is an important technical activity involving research on sediment transport and deposition processes in rivers, lakes, estuaries, and nearshore areas, as well as water quality and aquatic system restoration, and the design and management of water-related engineering projects. Analysis of the properties of underwater suspended sediment is of significant application value for long-term monitoring of estuaries and nearshore waters. However, in the process of underwater suspended sediment enrichment sampling, existing technologies have limitations in effectively meeting the requirements of different flow velocities and suspended sediment environments, resulting in low sampling efficiency and accuracy. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides an underwater environment sampling tube and sampling device.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] In a first aspect, this utility model provides an underwater environmental sampling tube, including an inner tube, an outer tube, and a tube cover; the inner tube is sleeved inside the outer tube; the gap between the inner tube and the outer tube forms an annular groove; an annular sealing block is fixedly installed on the lower surface of the tube cover; the annular sealing block is nested in the annular groove; a handle is provided on the top of the tube cover; a rotating part is provided on the bottom of the tube cover; multiple turbulence-inducing blades are evenly distributed on the outer periphery of the rotating part; a water and sand inlet window is opened on the tube cover; and several sieve holes are provided on the inner tube wall and bottom.

[0006] In one feasible implementation, the inner cylinder is shaped like an inverted frustum with a bottom diameter smaller than its top diameter.

[0007] The inverted frustum-shaped inner cylinder facilitates the flow and screening of underwater sediment, thereby improving screening efficiency.

[0008] In one feasible implementation, a rubber pad is fixedly installed on the outer surface of the annular sealing block, and the rubber pad abuts against the annular groove.

[0009] In one feasible implementation, a water-absorbing and swelling rubber pad can be used. Due to its water-swelling property, the rubber pad can fit more tightly against the outer wall of the inner cylinder and the inner wall of the outer cylinder, thereby enhancing the sealing effect.

[0010] In one feasible implementation, the handle is hinged to the rotating part.

[0011] In one feasible implementation, the spoiler blades are formed into a backward-curved shape.

[0012] The backward-curved baffle blades help reduce the scouring of loose, coarse particles in the incoming sand by the water flow, avoiding the problem of distortion of the suspended sand sample composition. At the same time, they make the incoming sand more orderly as it passes through the sieve holes, improving the sieving effect.

[0013] In one feasible implementation, a sand-screening plate is horizontally placed in the lower middle part of the outer cylinder, and the inner cylinder is placed on the sand-screening plate.

[0014] In one feasible implementation, the aperture of the sand screening plate is smaller than the aperture of the sieve hole.

[0015] The aperture of the sand screening plate is smaller than that of the screen holes on the inner cylinder wall and bottom, which can further screen out finer particles, improve the screening accuracy, and thus achieve more refined suspended sand enrichment.

[0016] In one feasible implementation, the area below the sand screening plate of the outer cylinder is a suspended sand enrichment zone.

[0017] Secondly, this application provides an underwater environment sampling device including an underwater environment sampling tube.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The underwater environmental sampling cylinder provided by this utility model allows water and sand to enter through the water and sand inlet window. The backward-curved turbulence blades help reduce the washing away of loose, coarse particles by the water flow, avoiding the problem of distortion of suspended sand sample composition. At the same time, it makes the water and sand enter more orderly as it passes through the sieve holes, improving the sieving effect. The inverted frustum-shaped inner cylinder is conducive to the flow and sieving of underwater sediment, improving sieving efficiency. After sieving through the inner cylinder, the aperture of the sand sieve plate is smaller than the aperture of the sieve holes on the inner cylinder wall and bottom, which can further screen out finer particles, improve the sieving accuracy, and thus achieve more refined suspended sand enrichment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the underwater environment sampling tube of this utility model;

[0021] Figure 2 This is a schematic diagram of the rotating part and the turbulence blades of this utility model;

[0022] Figure 3 This is a schematic diagram of the underwater environmental sampling device of this utility model;

[0023] In the diagram, 1-inner cylinder, 2-outer cylinder, 3-cylinder cover, 4-annular sealing block, 5-handle, 6-rotating part, 7-turbulence blade, 8-water and sand inlet window, 9-rubber pad, 10-sand sieve plate, 11-suspended sand enrichment area. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0026] See Figures 1 to 2 This utility model provides an underwater environmental sampling tube. The inner tube 1 is shaped like an inverted frustum with a bottom diameter smaller than its top diameter. The inner tube 1 is fitted inside the outer tube 2, and the gap between the inner tube 1 and the outer tube 2 forms an annular groove. An annular sealing block 4 is fixedly installed on the lower surface of the tube cover 3. The annular sealing block 4 is nested in the annular groove, and a rubber pad 9 is fixedly installed on the outer surface of the annular sealing block 4. The rubber pad 9 abuts against the annular groove. A water-absorbing and expanding rubber pad 9 can be used as needed. Due to its water-expanding properties, the rubber pad 9 can fit more tightly against the outer wall of the inner tube 1 and the inner wall of the outer tube 2, enhancing the sealing effect. A handle 5 is provided at the top of the tube cover 3, and a rotating part 6 is provided at the bottom of the tube cover 3. The handle 5 is hinged to the rotating part 6. Multiple turbulence-inducing blades 7 are evenly distributed on the outer periphery of the rotating part 6, and the turbulence-inducing blades 7 are curved backwards. The cover 3 has a water and sand inlet window 8, which can also be used as a water and sand outlet window. A sand sieve plate 10 is horizontally placed in the lower middle part of the outer cylinder 2. The area below the sand sieve plate 10 of the outer cylinder 2 is a suspended sand enrichment area 11. The inner cylinder 1 is placed on the sand sieve plate 10. The inner cylinder 1 has several sieve holes on its cylinder wall and bottom, and the hole diameter of the sand sieve plate 10 is smaller than the hole diameter of the sieve hole.

[0027] The underwater environmental sampling cylinder provided by this utility model allows water and sand to enter through the water and sand inlet window. The backward-curved turbulence blades help reduce the washing away of loose, coarse particles by the water flow, avoiding the problem of distortion of suspended sand sample composition. At the same time, it makes the water and sand entering through the sieve holes more orderly, improving the sieving effect. The inverted frustum-shaped inner cylinder is conducive to the flow and sieving of underwater sediment, improving sieving efficiency. After sieving through the inner cylinder, the aperture of the sand sieve plate is smaller than the aperture of the sieve holes on the inner cylinder wall and bottom, which can further screen out finer particles that fall into the suspended sand enrichment area, improving the sieving accuracy and thus achieving more refined suspended sand enrichment. Example 2

[0028] like Figure 3 As shown in the figure, this utility model provides a reference schematic diagram of an underwater environment sampling device. The device includes a fixed base, a first telescopic rod that extends horizontally at the upper end of the fixed base, a second telescopic rod that extends longitudinally at the end of the first telescopic rod, a sampling tube at the end of the second telescopic rod, and an underwater environment sampling tube connected to the end of the second telescopic rod. The connection can be made by a pull rope or other means.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An underwater environment sampling tube, characterized in that, It includes an inner cylinder, an outer cylinder, and a cylinder cover; the inner cylinder is fitted inside the outer cylinder; the gap between the inner cylinder and the outer cylinder forms an annular groove; an annular sealing block is fixedly installed on the lower surface of the cylinder cover; the annular sealing block is nested in the annular groove; a handle is provided on the top of the cylinder cover; a rotating part is provided on the bottom of the cylinder cover; multiple turbulence-inducing blades are evenly distributed on the outer periphery of the rotating part; a water and sand inlet window is opened on the cylinder cover; and several sieve holes are provided on the cylinder wall and bottom of the inner cylinder.

2. The underwater environment sampling tube according to claim 1, characterized in that, The inner cylinder is shaped like an inverted frustum with a bottom diameter smaller than its top diameter.

3. The underwater environment sampling tube according to claim 1, characterized in that, A rubber pad is fixedly installed on the outer surface of the annular sealing block, and the rubber pad abuts against the annular groove.

4. The underwater environment sampling tube according to claim 1, characterized in that, The handle is hinged to the rotating part.

5. The underwater environment sampling tube according to claim 1, characterized in that, The turbulence-causing blades are curved backwards.

6. The underwater environment sampling tube according to claim 1, characterized in that, A sand-screening plate is horizontally placed in the lower middle part of the outer cylinder, and the inner cylinder is placed on the sand-screening plate.

7. The underwater environment sampling tube according to claim 6, characterized in that, The aperture of the sand sieve plate is smaller than the aperture of the sieve hole.

8. The underwater environment sampling tube according to claim 1, characterized in that, The area below the sand screening plate of the outer cylinder is a suspended sand enrichment zone.

9. An underwater environmental sampling device, characterized in that, Includes the underwater environment sampling tube as described in claims 1 to 8.

Images