Sampling device for mud flat exploration

Abstract

The utility model relates to the technical field of geophysical prospecting sampling equipment, in particular to a sampling device for mud flat exploration, which comprises a sampling frame, a limiting plate and a scraper knife, sliding rails are arranged on the inner walls of two sides, adjacent to a movable cavity, in the sampling frame, and a guide part is arranged at the joint of the movable cavity and the sliding rails. The guide part is arranged to guide the scraper knife towards the direction of the sliding rail, so that the scraper knife can enter the sliding rail from the interior of the movable cavity along the guide part, and the first end opening is closed. A limiting plate used for placing a scraper knife is arranged on the outer side of a sampling frame, a sliding rail matched with the scraper knife is arranged in the sampling frame, the scraper knife can be horizontally inserted into the sampling frame along the sliding rail, bottom mud in the sampling frame is scooped up in a lossless mode, biological samples in the bottom mud are protected against damage, a lengthened push rod matched with the sampling frame is arranged, and the sampling frame is convenient to use. The sampling frame is inserted into the bottom mud for sampling under the condition that a user does not bend down, so that the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geophysical prospecting sampling equipment, and particularly relates to a sampling device for beach exploration. Background Art

[0002] The beach sampling frame is mainly applied to the quantitative sampling of organisms in beaches, swamps and intertidal zones. In these environments, the beach sampling frame can help researchers quickly and accurately collect representative benthic biological samples, and then analyze and study the types, quantities, distributions, etc. of benthic organisms.

[0003] The existing beach sampling frames are usually made of stainless steel into a square frame body of a certain height. For example, the quantitative sampling frame for shallow beach benthic biological investigation proposed by Zhou Jun et al. includes a frame body with upper and lower openings surrounded by several frame walls. An outward-turning edge with a radial width of at least 60 mm extending outward is provided from the frame opening of the frame body. The outward-turning edge forms a 90° angle with the frame wall. During sampling, the sampling frame needs to be inserted into the bottom mud, and tools such as a steel shovel are used to dig out the samples within the enclosed area, and the types, quantities, etc. of the included benthic organisms are identified and counted. However, when sampling, it is necessary to sample at multiple points within the set range, and it is necessary to bend down multiple times for the actions of framing and digging, with a large workload. Moreover, when digging out the samples, there is a risk of damaging the organisms in the samples, resulting in sampling deviation. Summary of the Utility Model

[0004] In view of the problems existing in the prior art, a first aspect of the utility model provides a sampling device for beach exploration, including:

[0005] A sampling frame, which is set as a frame body with a square cross-section, and has a first port that can be inserted into the bottom mud and a second port distributed opposite to the first port;

[0006] A limiting plate, fixedly arranged on one side of the sampling frame, and there is an activity cavity between the limiting plate and the sampling frame;

[0007] A shovel blade, movably installed in the activity cavity, and a first end and a second end are respectively arranged along the activity direction;

[0008] Wherein, sliding rails are arranged on the inner walls of two sides of the sampling frame adjacent to the activity cavity. The sliding rails are vertically distributed in a different plane from the activity cavity. A guiding part is arranged at the junction of the activity cavity and the sliding rails. The guiding part is set to guide the shovel blade towards the sliding rail direction, so that the shovel blade can enter the sliding rail from the activity cavity along the guiding part and close the first port.

[0009] As an alternative, the first end of the spade is provided in a conical tip shape, and the guiding portion is configured as a wedge surface or an arc surface capable of guiding the first end by ninety degrees, so that the first end is guided from the movable cavity into the slide rail.

[0010] As an alternative, a handle is fixedly provided at the second end of the spade, and a chute for the handle to pass through is formed on the limiting plate, and the chute is perpendicular to the slide rail.

[0011] As an alternative, a first push rod is hingedly installed on the handle, and the length of the first push rod is greater than the length of the spade.

[0012] As an alternative, a frame is fixedly provided on the outer wall of the second port of the sampling frame, and reinforcing ribs are fixedly provided between the frame and the outer wall of the sampling frame.

[0013] As an alternative, a first relief groove is formed on the frame corresponding to the handle.

[0014] As an alternative, a cover plate is further included, the cross-sectional dimension of the cover plate is set to be the same as the cross-sectional dimension of the frame, and the cover plate and the frame are fixedly clamped by a "C"-shaped clip.

[0015] As an alternative, a second push rod is fixedly installed at the middle position of the cover plate, and the second push rod is perpendicular to the cover plate.

[0016] As an alternative, a second relief groove is formed on the cover plate corresponding to the handle.

[0017] As an alternative, a wedge surface is provided at the connection between the limiting plate and the first port.

[0018] Compared with the prior art, the sampling device for beach exploration proposed by the present utility model is provided with a limiting plate for placing a spade on the outside of the sampling frame, and a slide rail cooperating with the spade is arranged inside the sampling frame, so that the spade can be horizontally inserted into the sampling frame along the slide rail, and the bottom mud of the sampling frame can be shoveled up without damage, which can protect the biological samples in the bottom mud from being damaged, and is equipped with an extended push rod cooperating with the sampling frame, so that the sampling frame can be inserted into the bottom mud and sampled without bending down. Especially when the distribution of sampling points is relatively large, the difficulty of sampling work can be reduced and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings.

[0020] Figure 1 It is a schematic three-dimensional structure diagram of the upper side of the sampling frame shown in the embodiment of the present utility model.

[0021] Figure 2 It is a schematic three-dimensional structure diagram of the lower side of the sampling frame shown in the embodiment of the present utility model.

[0022] Figure 3 It is a schematic three-dimensional structure diagram of the cover plate shown in the embodiment of the present utility model.

[0023] Figure 4 It is a schematic partial sectional structure diagram of the sampling device for beach exploration shown in the embodiment of the present utility model.

[0024] The meanings of the marks in the attached drawings are as follows:

[0025] 10. Sampling frame; 101. Slide rail; 102. First relief groove; 11. Plate frame; 12. Reinforcing rib; 20. Limiting plate; 201. Wedge surface; 202. Chute; 203. Guide part; 204. Activity cavity; 30. Shovel; 40. Handle; 50. First push rod; 60. Cover plate; 601. Second relief groove; 70. Second push rod. Specific embodiments

[0026] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows.

[0027] Since the existing sampling frame has a relatively simple structure and can only play a role in enclosing when inserted into the bottom mud, and cannot take out the bottom mud selected by the frame. When using tools such as a shovel to dig out the bottom mud in the frame, the biological samples in the mud will be damaged. Therefore, the present utility model provides a sampling device for beach exploration, aiming to solve the problem that the bottom mud selected by the sampling frame cannot be taken out without damage. As shown in the accompanying drawings, the sampling device for beach exploration exemplified by the present utility model includes a sampling frame 10, a limiting plate 20 and a shovel 30.

[0028] As Figure 1 shown, the sampling frame 10 is set as a frame body with a square cross-section, and has a first port that can be inserted into the bottom mud and a second port distributed opposite to the first port. Generally, the sampling frame 10 is formed by welding stainless steel thin plates, and its size is set in the range of 10 cm × 10 cm × 15 cm - 25 cm × 25 cm × 30 cm (length × width × height).

[0029] It should be understood that according to actual usage requirements, the sampling frame 10 can also be designed into other suitable sizes.

[0030] Further, the limiting plate 20 is fixedly arranged on one side of the sampling frame 10, and there is an activity cavity 204 between the limiting plate 20 and the sampling frame 10. The shovel 30 is movably installed in the activity cavity 204 and is respectively provided with a first end and a second end along the moving direction. Among them, the size of the limiting plate 20 is the same as the size of one side surface of the sampling frame 10. Taking the thickness of the shovel 30 as 2 mm as an example, the interval distance between the limiting plate 20 and the sampling frame 10 is set at 3 mm, and the shovel 30 can move up and down freely in the activity cavity 204.

[0031] As an optional method, in order to make it easier for the sampling frame 10 to be inserted downward into the soil layer on one side of the limiting plate 20, a wedge surface 201 is provided at the connection between the limiting plate 20 and the first port. The setting of this wedge surface 201 can reduce the frictional resistance when the sampling frame 10 together with the limiting plate 20 is inserted into the soil layer.

[0032] Further, in order to enable the shovel 30 to adjust from the vertical movement direction to the horizontal movement direction, slide rails 101 are provided on the inner walls of two sides adjacent to the activity cavity 204 in the sampling frame 10. The slide rails 101 are vertically distributed in a different plane from the activity cavity 204. A guiding portion 203 is provided at the junction of the activity cavity 204 and the slide rails 101. The guiding portion 203 is arranged to guide the shovel 30 towards the direction of the slide rails 101, so that the shovel 30 can enter the slide rails 101 from the activity cavity 204 along the guiding portion 203 and close the first port.

[0033] In the embodiment of the optional method, the first end of the shovel 30 is arranged in a conical tip shape, and the guiding portion 203 is configured as a wedge surface or an arc surface that can guide the first end by ninety degrees, so that the first end is guided from the activity cavity 204 to the slide rails 101. In this way, when the shovel 30 is pushed downward in the activity cavity 204, the first end of the shovel 30 can enter the sampling frame 10 along the slide rails 101. And when the shovel 30 moves to abut against the inner wall of the sampling frame 10, it can close the first port. At this time, the sampling frame 10 and the shovel 30 form a lower-closed basin-shaped structure, and the sediment above the shovel 30 in the sampling frame 10 can be isolated. When the sampling frame 10 is pulled out upward, all the sampled sediment can be taken out without damage, which can ensure the integrity of biological samples and improve the sampling accuracy.

[0034] Further, in order to facilitate pushing the shovel 30 downward, as Figure 2 shown, a handle 40 is fixedly provided at the second end of the shovel 30. A chute 202 for the handle 40 to pass through is opened on the limiting plate 20. The chute 202 is perpendicular to the slide rails 101. In the embodiment of the optional method, the handle 40 is arranged as a rectangular plate with a certain thickness, and plastic or alloy materials can be used, which is convenient for people to hold. The handle 40 is connected to the shovel 30 through one or two contact points, and the chute 202 is correspondingly located at the position of the contact points. In this way, it is convenient for people to push the shovel 30 from the vertical state to the horizontal state to shovel up the sediment.

[0035] In an alternative embodiment, in order to enhance the structural strength of the sampling frame 10 and prevent the sampling frame 10 from deforming during use, especially for a relatively large-sized sampling frame 10 welded from plates of the same thickness, whose strength is lower and more prone to deformation, a frame 11 is fixedly provided on the outer wall of the second port of the sampling frame 10, and reinforcing ribs 12 are fixedly provided between the frame 11 and the outer wall of the sampling frame 10. The size of the frame 11 is larger than that of the sampling frame 10, and eight reinforcing ribs 12 are arranged around the frame 11 to strengthen the axial strength of the sampling frame 10.

[0036] Furthermore, a first relief groove 102 is provided on the frame 11 corresponding to the handle 40 to facilitate the pushing of the handle 40.

[0037] In an alternative embodiment, the device further includes a cover plate 60. The cross-sectional dimension of the cover plate 60 is set to be the same as that of the frame 11, and the cover plate 60 is fixedly installed on the frame 11 by a "C"-shaped clip. A second push rod 70 is fixedly installed at the middle position of the cover plate 60, and the second push rod 70 is perpendicular to the cover plate 60.

[0038] Furthermore, a second relief groove 601 is provided on the cover plate 60 corresponding to the handle 40, and a first push rod 50 is hingedly installed on the handle 40. The length of the first push rod 50 is greater than the length of the shovel 30.

[0039] In this way, by adding the cover plate 60 with the second push rod 70 to the sampling frame 10 and hingedly installing the first push rod 50 on the handle 40, the sampling frame 10 can be inserted into the bottom mud without bending down, and the first push rod 50 can be pushed downward to push the shovel 30 into the sampling frame 10 to scoop up the bottom mud.

[0040] Combined with the above embodiments, a limiting plate 20 for placing the shovel 30 is provided on the outside of the sampling frame 10, and a slide rail 101 cooperating with the shovel 30 is provided inside the sampling frame 10, so that the shovel 30 can be horizontally inserted into the sampling frame 10 along the slide rail 101 to scoop up the bottom mud of the sampling frame 10 without damage, which can protect the biological samples in the bottom mud from being damaged, and a lengthened push rod cooperating with the sampling frame 10 is configured, so that the sampling frame 10 can be inserted into the bottom mud and sampled without bending down. Especially when there are many sampling points, the labor intensity can be reduced.

[0041] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model belongs can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. A sampling device for tidal flat exploration, characterized in that, Comprising: A sampling frame (10), which is set as a frame with a square cross-section, and has a first port that can be inserted into the bottom mud and a second port distributed opposite to the first port; A limiting plate (20), fixedly arranged on one side of the sampling frame (10), and there is an activity cavity (204) between the limiting plate (20) and the sampling frame (10); A shovel blade (30), movably installed in the activity cavity (204), and a first end and a second end are respectively arranged along the moving direction; Wherein, sliding rails (101) are arranged on the inner walls of two sides of the sampling frame (10) adjacent to the activity cavity (204), the sliding rails (101) are vertically distributed in different planes from the activity cavity (204), a guiding part (203) is arranged at the junction of the activity cavity (204) and the sliding rails (101), and the guiding part (203) is set to guide the shovel blade (30) towards the sliding rails (101), so that the shovel blade (30) can enter the sliding rails (101) from the activity cavity (204) along the guiding part (203) and close the first port.

2. The sampling device for tidal flat exploration according to claim 1, wherein The first end of the shovel blade (30) is set to be conical, and the guiding part (203) is configured as a wedge surface or an arc surface that can guide the first end by ninety degrees, so that the first end is guided from the activity cavity (204) into the sliding rails (101).

3. The sampling device for tidal flat exploration according to claim 1, characterized in that, A handle (40) is fixedly arranged at the second end of the shovel blade (30), and a sliding groove (202) for the handle (40) to pass through is opened on the limiting plate (20), and the sliding groove (202) is perpendicular to the sliding rails (101).

4. The sampling device for tidal flat exploration according to claim 3, characterized in that, A first push rod (50) is hingedly installed on the handle (40), and the length of the first push rod (50) is greater than the length of the shovel blade (30).

5. The sampling device for tidal flat exploration according to claim 3, wherein A plate frame (11) is fixedly arranged on the outer wall of the second port of the sampling frame (10), and a reinforcing rib (12) is fixedly arranged between the plate frame (11) and the outer wall of the sampling frame (10).

6. The sampling device for tidal flat exploration according to claim 5, wherein, A first relief groove (102) is opened on the plate frame (11) corresponding to the handle (40).

7. The sampling device for tidal flat exploration according to claim 5, characterized in that, It further includes a cover plate (60), the cross-sectional dimension of the cover plate (60) is set to be the same as the cross-sectional dimension of the plate frame (11), and the cover plate (60) and the plate frame (11) are fixedly installed by "C" - shaped clips.

8. The sampling device for tidal flat exploration according to claim 7, characterized in that, A second push rod (70) is fixedly installed at the middle position of the cover plate (60), and the second push rod (70) is perpendicular to the cover plate (60).

9. The sampling device for tidal flat exploration according to claim 7, characterized in that, A second relief groove (601) is opened on the cover plate (60) corresponding to the handle (40).

10. The sampling device for tidal flat exploration according to claim 1, wherein, A wedge surface (201) is arranged at the connection of the limiting plate (20) and the first port.

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