Sampling device for underwater silt deposition soil layer

Abstract

The invention relates to the technical field of soil layer sampling equipment, and discloses a sampling device for an underwater silt deposited soil layer, the sampling device comprises an outer shell, an inner cylinder is movably sleeved with the outer shell, an inner clamping groove is formed in the bottom of the outer surface of the inner cylinder, a sealing tape coil is in shaft connection with the inner part of the inner cylinder, and the sealing tape coil is in shaft connection with the outer surface of the inner cylinder. And a sealing tape on the sealing tape roll penetrates through a straight-through groove formed in one side of the interior of the inner column body and is fixedly connected with the inner wall of the outer shell. According to the sampling device for the underwater silt deposition soil layer, the inner column body is arranged, after soil layer sampling is completed, the sealing strip coil can be pulled by rotating the inner column body, so that the sealing bag on the sealing strip coil wraps the inner clamping groove containing a soil layer sample, and the sampling effect is improved; and the sealing belt is sealed on the outer surface of the inner column body in a hot welding manner by using the electric heating wires at the two sides of the inner clamping groove in the corresponding position, so that the soil layer sample in the inner clamping groove is completely sealed, and the soil layer sample on the inner clamping groove is not easily influenced by the disturbance of water flow.

Description

Technical Field

[0001] The present application relates to the technical field of soil layer sampling equipment, and in particular to a sampling device for underwater silt deposited soil layers. Background Art

[0002] The Yellow River old course contains a kind of sediment composed of dense silty sand and sandy silt under the water, and after deposition, it forms a hard soil layer, which is very difficult to excavate. Conventional dredging equipment is difficult to excavate or dredge effectively. Therefore, the dredging efficiency of the hard soil layer has always been a difficult problem in dredging work;

[0003] Among them, the key technical difficulty of dredging efficiency of hard soil layers is: how to accurately obtain the distribution area, depth, thickness and other spatiotemporal characteristics of underwater hard soil layers, especially the underwater silt layer of the Yellow River old course has complex spatiotemporal distribution characteristics under the influence of water flow velocity, wind speed and obstacles along the way. During the sampling and recovery process, the existing underwater soil layer sampling device has to pass through the water flow layer, which makes the soil layer samples easily fall off and lose due to the disturbance of the water flow, making it very difficult to extract samples from the underwater soil layer. In addition, when passing through the water flow layer, the soil layer samples are easily in contact with water, which leads to a large difference between the specific parameters of the underwater soil layer and the sample parameters. The obtained underwater soil layer sample parameters have low accuracy, poor stability and reliability.

[0004] Therefore, there is an urgent need for a sampling device for the underwater Yellow River silt deposited hard soil layer to solve the defects of the above-mentioned existing underwater soil layer sampling device in actual use. Summary of the invention

[0005] The present application proposes a sampling device for underwater silt deposited soil layers, which has the advantage of being able to effectively ensure the integrity and consistency of the underwater soil layer samples obtained, so that they will not be affected by external water flow disturbances, and the accuracy of the sample parameters is relatively high. It is used to solve the problem that in the process of sampling and recovery, the existing underwater soil layer sampling device has to pass through the water flow layer, causing the soil layer samples to be easily disturbed by the water flow and fall off and be lost, making it difficult to extract samples from the underwater soil layer. In addition, when passing through the water flow layer, the soil layer samples are easily in contact with water, which leads to a large difference between the specific parameters of the underwater soil layer and the sample parameters, and the problem of low accuracy of the underwater soil layer sample parameters obtained.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a sampling device for underwater silt accumulation soil layer, comprising an outer shell, and when performing soil layer sampling operation, the end of the outer shell is inserted into the sampling position through a power device, one side of the outer surface of the outer shell is provided with an outer card slot connected to its inner cavity, the inner shell is movably sleeved with an inner cylinder, and a linkage component is fixedly installed on the top of the inner cylinder, three groups of inner card slots arranged in a circular array are provided at the bottom of the outer surface of the inner cylinder, and the arc trajectory of the inner card slot is the same as that of the outer card slot, and the positions of a certain group of inner card slots and the outer card slots are always kept coincident with each other to perform soil layer sampling operation, the internal shaft of the inner cylinder is connected with a sealing tape roll, and the sealing tape on the sealing tape roll passes through a straight-through groove provided on one side of the inner cylinder and is fixedly connected to the inner wall of the outer shell;

[0007] After the soil sampling is completed, the inner cylinder can be rotated to pull the sealing tape roll so that the sealing bag on it wraps the inner card slot containing the soil sample, making the collected soil sample less susceptible to the influence of water flow. At the same time, the next group of inner card slots can be rotated and moved to the position of the outer card slot to sample the same position and the same depth multiple times or the same position and different depths.

[0008] Furthermore, the inner cylinder rotates counterclockwise, thereby ensuring that the through slot is always located below the overlapping position of the outer slot and the inner slot, so that when the inner cylinder is rotated counterclockwise, the sealing tape on the sealing tape roll is pulled to wrap the inner slot containing the soil sample.

[0009] Furthermore, a conical structure is provided at the bottom of the inner cylinder, and cooperates with a conical groove at the bottom of the inner cavity of the outer shell, so that the sealing tape on the sealing tape roll can seal the bottom of the inner slot along the arc gap between the outer shell and the bottom of the inner cylinder.

[0010] Furthermore, a group of heating wires are provided on the outer surface of the inner cylinder and on both sides of each group of inner slots. When the sealing tape on the sealing tape roll is wrapped around the inner slot containing the soil layer sample, the sealing tape can be heat-welded and sealed on the outer surface of the inner cylinder using the heating wires on both sides of the inner slot at the corresponding position, so as to completely seal the soil layer sample in the inner slot at the corresponding position of the inner cylinder, so that the soil layer sample thereon is not easily affected by the disturbance of the water flow.

[0011] Furthermore, three groups of touch switches arranged in a circular array are provided at the top of the inner cylinder, and each group of touch switches is electrically connected to the heating wires on both sides of the corresponding inner card slots, and the touch switches are used to control the synchronous triggering of the two groups of inner card slots at the corresponding positions.

[0012] Furthermore, the linkage component includes a limiting ring fixedly mounted on the top of the outer surface of the inner cylinder, and three groups of elastic members arranged in a circular array are provided on the limiting ring, and the bottom of the elastic members are in contact with three groups of milling planes opened on the top of the outer surface of the inner cylinder, thereby ensuring that when the sampling device is performing sampling operations, relative rotation between the outer shell and the inner cylinder is not prone to occur. At the same time, the inner cylinder can be rotated by degrees each time without the problem of excessive or insufficient rotation.

[0013] Furthermore, a group of pressure rings are clamped on the top of the inner cavity of the outer shell by bolts, and an annular groove that cooperates with the pressure ring is provided on the top of the outer surface of the inner cylinder. After the sampling of the inner groove on the inner cylinder is completed, the inner cylinder can be removed by removing the pressure ring and the soil layer sample in the inner groove thereon can be obtained.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present application provides a sampling device for underwater silt accumulation soil layers. With regard to the setting of the inner cylinder, after the soil layer sampling is completed, the inner cylinder can be rotated to pull the sealing tape roll so that the sealing bag thereon wraps up the inner card slot containing the soil layer sample, and the sealing tape is heat-welded and sealed to the outer surface of the inner cylinder using the electric heating wires on both sides of the inner card slot at the corresponding position, so as to completely seal the soil layer sample in the inner card slot, so that the soil layer sample thereon is not easily affected by the disturbance of the water flow, and the accuracy of the acquired sample parameters is high. At the same time, the next group of inner card slots is rotated and moved to the position of the outer card slot, so that the same position and the same depth can be sampled multiple times, or the same position and different depths can be sampled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a partial front view of the lower half of the structure of the present invention;

[0019] Figure 3 It is a partial front view of the upper half of the structure of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the outer shell of the present invention;

[0021] Figure 5It is a structural schematic diagram of the inner cylinder of the present invention;

[0022] Figure 6 A bottom view of the inner column of the structure of the present invention;

[0023] Figure 7 The structure of the present invention Figure 2 Cross-sectional view at AA in the middle.

[0024] In the figure: 1-outer shell, 2-inner cylinder, 3-linkage component, 4-outer slot, 5-pressing ring, 6-inner slot, 7-sealing tape roll, 8-through slot, 9-heating wire, 10-limiting sleeve ring, 11-elastic member, 12-touch switch. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1 , Figure 2 As shown, a sampling device for underwater silt deposition soil layer comprises an outer shell 1. When performing soil layer sampling operation, the end of the outer shell 1 is inserted into the sampling position by a power device. One side of the outer surface of the outer shell 1 is provided with an outer card slot 4 connected to its inner cavity. The inner shell 1 is movably sleeved with an inner column 2, and a linkage component 3 is fixedly installed at the top of the inner column 2. Figure 5 , Figure 6 As shown, three groups of inner card slots 6 arranged in a circular array are provided at the bottom of the outer surface of the inner cylinder 2, and the arc track of the inner card slots 6 is the same as that of the outer card slots 4, and the positions of a certain group of inner card slots 6 and the outer card slots 4 are always kept overlapping with each other for soil layer sampling operations, and the inner shaft of the inner cylinder 2 is connected to a sealing tape roll 7, and the sealing tape on the sealing tape roll 7 passes through a straight groove 8 provided on one side of the inner cylinder 2 and is fixedly connected to the inner wall of the outer shell 1;

[0027] After the soil layer sampling is completed, the inner cylinder 2 can be rotated to pull the sealing tape roll 7 so that the sealing bag thereon wraps the inner card slot 6 containing the soil layer sample, so that the collected soil layer sample is not easily affected by the water flow. At the same time, the next group of inner card slots 6 are rotated and moved to the position of the outer card slot 4 to sample the same position and the same depth multiple times or sample the same position and different depths.

[0028] like Figure 2 , Figure 7As shown, in the present technical solution, the rotation direction of the inner cylinder 2 is counterclockwise, thereby ensuring that the straight-through groove 8 is always located below the overlapping position of the outer card slot 4 and the inner card slot 6, so that when the inner cylinder 2 is rotated counterclockwise, the sealing tape on the sealing tape roll 7 is pulled to wrap the inner card slot 6 containing the soil layer sample.

[0029] like Figure 2 As shown, in the present technical solution, a conical structure is provided at the bottom of the inner cylinder 2, and cooperates with the conical groove at the bottom of the inner cavity of the outer cylinder 1, so that the sealing tape on the sealing tape roll 7 can seal the bottom of the inner slot 6 along the arc-shaped gap between the outer cylinder 1 and the bottom of the inner cylinder 2.

[0030] like Figure 6 As shown, in the present technical solution, a group of electric heating wires 9 are provided on the outer surface of the inner cylinder 2 and on both sides of each group of inner slots 6. Then, when the sealing tape on the sealing tape roll 7 wraps the inner slots 6 containing the soil layer samples, the electric heating wires 9 on both sides of the inner slots 6 at the corresponding positions can be used to heat-weld the sealing tape onto the outer surface of the inner cylinder 2, so as to completely seal the soil layer samples in the inner slots 6 at the corresponding positions of the inner cylinder 2, so that the soil layer samples thereon are not easily affected by the disturbance of the water flow.

[0031] like Figure 3 , Figure 6 As shown, in the present technical solution, three groups of touch switches 12 arranged in a circular array are provided at the top of the inner cylinder 2, and each group of touch switches 12 is electrically connected to the heating wires 9 on both sides of the corresponding inner card slots 6, and the touch switches 12 are used to control the synchronous triggering of the two groups of inner card slots 6 at the corresponding positions.

[0032] like Figure 1 , Figure 3 As shown, in the present technical solution, the linkage component 3 includes a limiting collar 10 fixedly mounted on the top of the outer surface of the inner cylinder 2, and three groups of elastic members 11 arranged in a ring array are provided on the limiting collar 10, and the bottom of the elastic member 11 is in contact with three groups of milling planes opened on the top of the outer surface of the inner cylinder 2, thereby ensuring that when the sampling device is performing sampling operations, relative rotation between the outer shell 1 and the inner cylinder 2 is not likely to occur. At the same time, the inner cylinder 2 can be rotated 120° each time without the problem of excessive or insufficient rotation.

[0033] like Figure 4 , Figure 5 As shown, in the present technical solution, a group of pressure rings 5 ​​are clamped at the top of the inner cavity of the outer shell 1 by bolts, and an annular groove that cooperates with the pressure ring 5 is provided on the top of the outer surface of the inner cylinder 2. After the sampling of the inner groove 6 on the inner cylinder 2 is completed, the pressure ring 5 can be removed to remove the inner cylinder 2 and obtain the soil layer sample in the inner groove 6 thereon.

[0034] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampling device for underwater silt accumulation soil layer, comprising an outer shell (1), one side of the outer surface of the outer shell (1) is provided with an outer slot (4) connected to its inner cavity, an inner cylinder (2) is movably sleeved inside the outer shell (1), and a linkage component (3) is fixedly installed at the top of the inner cylinder (2), characterized in that: The bottom of the outer surface of the inner cylinder (2) is provided with three groups of inner slots (6) arranged in a circular array, and the arc trajectory of the inner slots (6) is the same as that of the outer slots (4), and the positions of a certain group of inner slots (6) and the outer slots (4) are always kept coincident with each other. The internal axis of the inner cylinder (2) is connected to a sealing tape roll (7), and the sealing tape on the sealing tape roll (7) passes through a straight groove (8) provided on one side of the inner cylinder (2) and is fixedly connected to the inner wall of the outer shell (1).

2. The sampling device for underwater silt deposit soil layer according to claim 1 is characterized in that: The inner cylinder (2) rotates in a counterclockwise direction, thereby ensuring that the straight-through groove (8) is always located below the overlapping position of the outer slot (4) and the inner slot (6), so that when the inner cylinder (2) rotates counterclockwise, the sealing tape on the sealing tape roll (7) is pulled to wrap the inner slot (6) containing the soil layer sample.

3. The sampling device for underwater silt deposit soil layer according to claim 2 is characterized in that: The bottom of the inner cylinder (2) is provided with a conical structure, which cooperates with the conical groove at the bottom of the inner cavity of the outer cylinder (1).

4. The sampling device for underwater silt deposit soil layer according to claim 1, characterized in that: A group of electric heating wires (9) are provided on the outer surface of the inner cylinder (2) and on both sides of each group of inner slots (6), so that when the sealing tape on the sealing tape roll (7) wraps around the inner slots (6) containing the soil layer sample, the sealing tape is heat-welded and sealed on the outer surface of the inner cylinder (2) using the electric heating wires (9) on both sides of the inner slots (6) at corresponding positions.

5. The sampling device for underwater silt deposit soil layer according to claim 2, characterized in that: The top of the inner cylinder (2) is provided with three groups of touch switches (12) arranged in a ring array, and each group of touch switches (12) is electrically connected to the heating wires (9) on both sides of the corresponding inner card slot (6), and the touch switches (12) are used to control the synchronous triggering of the two groups of inner card slots (6) at the corresponding positions.

6. The sampling device for underwater silt deposit soil layer according to claim 1, characterized in that: The linkage component (3) comprises a limiting collar (10) fixedly mounted on the top of the outer surface of the inner cylinder (2), and three groups of elastic members (11) arranged in a ring array are provided on the limiting collar (10), and the bottom of the elastic members (11) is in contact with three groups of milling planes opened on the top of the outer surface of the inner cylinder (2).

7. The sampling device for underwater silt deposit soil layer according to claim 1, characterized in that: A group of pressure rings (5) are clamped on the top of the inner cavity of the outer shell (1) by bolts, and an annular groove cooperating with the pressure ring (5) is provided on the top of the outer surface of the inner cylinder (2).

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