Shallow water intertidal zone sediment columnar sample collecting device

Abstract

The utility model relates to a shallow water intertidal zone sediment columnar sample collecting device which comprises a sampling pipe, a handle and a tool bit, the tool bit is connected to a lower end pipe opening of the sampling pipe, the tool bit is of a tubular structure, and a tool point of the tool bit is located at the bottom of the tool bit; the handle is arranged at the upper end of the sampling tube and comprises a first handle, a second handle and a locking assembly, a first connecting piece is arranged on the first handle, a second connecting piece is arranged on the second handle, and a hooping space matched with the sampling tube in shape is defined by the first connecting piece and the second connecting piece; the locking assembly comprises a locking screw, a locking nut and a spring, the locking screw sequentially penetrates through the spring, the first connecting piece and the second connecting piece and is in threaded connection with the locking nut, the first connecting piece and the second connecting piece are each provided with an oblong hole for the locking screw to penetrate through, and the length direction of the oblong holes is parallel to the length direction of the sampling pipe. The handle can be detached, transportation is not prone to being interfered, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for columnar samples of shallow water intertidal zone sediments. Background Art

[0002] The collection of marine sediment columnar samples requires maintaining the integrity and authenticity of the samples to the greatest extent. During the sampling process, an external force acts on the sampler, causing the sediment to enter the sampler from the sampling port, thereby obtaining columnar samples. In areas such as intertidal mangroves, it is basically impossible to rely on mechanical power for the collection of columnar samples. A handle is usually provided on the sampler to facilitate manual force application. To meet the requirements of multiple and efficient collection of intertidal columnar samples, the sampling handle is mostly designed in a detachable and reusable manner. The conventional handle is fixed and disassembled through a simple nut, but the installation and disassembly are time-consuming and cumbersome. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a sampling device for columnar samples of shallow water intertidal zone sediments, whose handle can be quickly disassembled, and has a simple structure, is convenient to operate and carry.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A sampling device for columnar samples of shallow water intertidal zone sediments, which includes a sampling tube, a handle and a cutter head. The cutter head is connected to the lower end opening of the sampling tube. The cutter head is a tubular structure and is coaxially arranged with the sampling tube. The cutting edge of the cutter head is located at the bottom of the cutter head. The handle is arranged at the upper end of the sampling tube and includes a first handle, a second handle and a locking component. A first connecting piece is provided on the first handle, and a second connecting piece is provided on the second handle. The first connecting piece and the second connecting piece enclose a tightening space adapted to the outer shape of the sampling tube. The locking component includes a locking screw, a locking nut and a spring. The locking screw sequentially passes through the spring, the first connecting piece, the second connecting piece and is threadedly connected to the locking nut. Long circular holes for the locking screw to pass through are provided on both the first connecting piece and the second connecting piece, and the length direction of the long circular hole is parallel to the length direction of the sampling tube.

[0006] After the above settings, by setting a cutter head at the lower end of the sampling tube, the blade of which can cut the roots of vegetation, it can also be normally used in the shallow water intertidal zone with more vegetation growing, and has stronger environmental adaptability. The first handle and the second handle can be clamped tightly around the outer periphery of the sampling tube, which is conducive to the user applying force. By pulling the first handle and the second handle away from the sampling tube, the handle can be quickly removed from the sampling tube. In addition, by setting the spring and the long circular holes, even if the lock nut and the lock screw are loosened to a certain extent, it can still ensure normal use. For example, when not collecting samples, the elastic force of the spring can be released to ensure to a certain extent that the handle will not fall off the sampling tube. And because of the long circular holes on the first connecting piece and the second connecting piece, when the handle applies force downward (during sampling), the lower ends of the first connecting piece and the second connecting piece can abut against the sampling tube, and when the handle applies force upward (when pulling the sampling device out of the mud), the upper ends of the first connecting piece and the second connecting piece can abut against the sampling tube, thereby avoiding relative slipping between the handle and the sampling tube and ensuring that the sampling device can sample smoothly. In addition, the structure of the present utility model is simple, and it is very convenient to carry and operate.

[0007] The upper end of the cutter head is inserted into the lower end pipe orifice of the sampling tube, and the outer wall of the cutter head fits with the inner wall of the sampling tube. After such a setting, the installation and reinforcement of the cutter head can be facilitated, and the cutter head is not easy to interfere with sampling.

[0008] The cutter head is detachably connected to the sampling tube. After such a setting, the replacement and maintenance of the cutter head can be facilitated.

[0009] A plurality of elastic support pieces are further provided in the lower end pipe orifice of the sampling tube. The elastic support pieces are circumferentially distributed in the lower end pipe orifice of the sampling tube. One end of the elastic support piece is connected to the cutter head or the lower end pipe orifice of the sampling tube, and the other end of the elastic support piece is suspended, and the suspended ends of all the elastic support pieces overlap each other. By setting the elastic support pieces, during sampling, under the action of an external force, the sediment can squeeze open the elastic support pieces and enter the sampling tube. When the depth of the sediment in the sampling tube reaches the requirement, when the sampling tube is pulled out, the elastic support pieces are pressed and closed, which can prevent the collected sediment sample from falling off and keep the integrity of the sediment column sample.

[0010] Two sets of locking components are provided, corresponding to both sides of the handle respectively; first connection parts are provided on both sides of the first connecting piece, second connection parts are provided on both sides of the second connecting piece, and long circular holes are provided on both the first connection part and the second connection part. Such a setting can ensure the connection stability of the handle.

[0011] Grasping parts for increasing friction are provided on both the first connecting piece and the second connecting piece. By setting the grasping parts, the slipping between the handle and the sampling tube can be prevented, which is conducive to the user applying force.

[0012] The gripping part is a rubber pad, or the gripping part is stripes or a matte surface provided on the first connecting member and the second connecting member.

[0013] A number of drainage hole groups are arranged at intervals along the length of the sampling tube, and each drainage hole group includes at least one drainage hole. By providing the drainage holes, the surface water of the sediment after sampling can be discharged, reducing the interference of the accumulated water on the surface sample.

[0014] The sampling tube is made of a hard transparent material. This setting allows for intuitive observation of the columnar sample.

[0015] After adopting the above solution, by setting a cutter head at the lower end of the sampling tube, its blade can cut the roots of the vegetation, and it can also be normally used in the shallow water intertidal zone area with more vegetation growth, with stronger environmental adaptability. The handle is detachably connected to the sampling tube, the handle is not easy to interfere with the transportation of the device, and the disassembly and assembly of the handle are convenient and fast. In addition, the structure of the present utility model is simple and convenient to carry. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the present utility model.

[0017] Figure 2 It is an exploded schematic diagram of the handle.

[0018] Figure 3 It is a connection schematic diagram of the locking assembly.

[0019] Figure 4 It is an arrangement schematic diagram of the elastic support piece.

[0020] Marking Explanation:

[0021] Sampling tube 10, drainage hole 11;

[0022] First handle 21, second handle 22, first connecting member 23, second connecting member 24, first connecting portion 25, second connecting portion 26, oblong hole 27, gripping part 28;

[0023] Locking screw 31, spring 32, locking nut 33;

[0024] Cutter head 40;

[0025] Elastic support piece 50. Detailed Embodiment

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0028] As Figures 1-4 shown, the present utility model discloses a collecting device for sediment column samples in the shallow water intertidal zone, which includes a sampling tube 10, a handle, and a cutter head 40. The sampling tube 10 is preferably made of a hard transparent material, such as plexiglass, etc. Such a setting can visually observe the columnar sample. Of course, the sampling tube 10 can also be an opaque metal tube or alloy tube. Along the length of the sampling tube 10, a number of drainage hole groups are sequentially arranged at intervals. Each drainage hole group includes at least one drainage hole 11. The drainage holes 11 in the same group are evenly arranged in the circumferential direction of the sampling tube 10. The surface water of the sediment after sampling can be discharged through the drainage holes 11, reducing the interference of the accumulated water on the surface sample.

[0029] The handle is used for the user to apply force so that the sampling tube 10 can be inserted into the sample collection area. For the convenience of transportation, as well as to improve the versatility of the handle, facilitate replacement and maintenance, the handle is detachably connected to the upper end of the sampling tube 10. Specifically, the handle includes a first handle 21 and a second handle 22. A first connector 23 is provided on the first handle 21, and a second connector 24 is provided on the second handle 22. Both the first connector 23 and the second connector 24 are semi-circular. The first connector 23 and the second connector 24 can cooperate to form a clamping space adapted to the outer shape of the sampling tube 10, and the first connector 23 and the second connector 24 are detachably connected. To prevent the handle from slipping with the sampling tube 10 and facilitate the user to apply force, a gripping portion 28 for increasing friction is provided on both the first connector 23 and the second connector 24. The gripping portion 28 can be a rubber pad, or it can be transverse stripes, a matte surface, or teeth provided on the first connector 23 and the second connector 24.

[0030] In this case, the detachable connection mode of the first connecting member 23 and the second connecting member 24 is designed as follows: a first connecting portion 25 is provided on both sides of the first connecting member 23, and a second connecting portion 26 is provided on both sides of the second connecting member 24. An oblong hole 27 is provided on each of the first connecting portion 25 and the second connecting portion 26, and the length direction of the oblong hole 27 is parallel to the length direction of the sampling tube 10. A set of locking components is provided on both sides of the handle, respectively, and the locking components include a locking screw 31, a locking nut 33 and a spring 32. The locking screw 31 passes through the spring 32, the oblong hole 27 on the first connecting portion 25, and the oblong hole 27 on the second connecting portion 26 in sequence, and then is threadedly connected to the locking nut 33.

[0031] When the handle is assembled for the first time, tighten the locking nut 33 and the locking screw 31. At this time, the spring 32 is in a compressed state (not compressed to the limit state). The spring 32 in this state can prevent the locking nut 33 from loosening to a certain extent. At this time, the handle is tightly clamped on the outer periphery of the sampling tube 10. If the locking nut 33 is slightly loose, under the force of the spring 32, the first connecting member 23 and the second connecting member 24 can still have a certain degree of tightening effect, and the entire device can still be lifted by the handle, and the handle is not easy to fall off. When it is necessary to press down for sampling or pull the device out of the mud, due to the setting of the oblong hole, the first connecting member 23 and the second connecting member 24 can move to a certain extent. The first handle 21 and the second handle 22 apply force, which can make the lower end (when pressing down) or the upper end (when pulling up) of the first connecting member 23 and the second connecting member 24 abut against the sampling tube 10, thereby avoiding the relative slippage of the handle and the sampling tube 10, and ensuring that the collection device can sample smoothly. When the handle needs to be removed, the first handle 21 and the second handle 22 are pulled away from the sampling tube 10 to quickly remove the handle from the sampling tube 10. Similarly, when installing the handle again, the first handle 21 and the second handle 22 are pulled outward at the same time, the clamping space can be expanded, and the handle can be inserted into the sampling tube 10.

[0032] The setting of the cutter head 40 can make it easier to insert the sampling tube 10 into the sampling area, and can also be used to cut the roots of vegetation to ensure smooth sampling. The cutter head 40 is detachably connected to the lower end of the sampling tube 10 through a screw. Specifically, the cutter head 40 is a tubular structure, the upper end of the cutter head 40 is inserted into the lower end of the sampling tube 10, and the outer wall of the cutter head 40 is in contact with the inner wall of the sampling tube 10. The cutter head 40 and the sampling tube 10 are coaxially arranged, and the blade of the cutter head 40 is located at the bottom of the cutter head 40.

[0033] In addition, in order to prevent the sample in the sampling tube 10 from falling off when the sampling tube 10 is pulled out, a plurality of elastic support pieces 50 are further provided at the lower end of the sampling tube 10. These elastic support pieces 50 are evenly distributed in a circle at the lower end of the sampling tube 10. One end of the elastic support piece 50 is connected to the cutter head 40 (such as by riveting or other means), and the other end of the elastic support piece 50 is suspended. And the suspended ends of all the elastic support pieces 50 overlap each other. During sampling, under the action of an external force, the sediment can push open the elastic support pieces 50 and enter the sampling tube 10. When the depth of the sediment in the sampling tube 10 reaches the requirement, when the sampling tube 10 is pulled out, the elastic support pieces 50 are pressed and closed, which can prevent the collected sediment sample from falling off and keep the integrity of the sediment column sample. The cutter head 40 and the elastic support pieces 50 can be made of stainless steel.

[0034] As described above, it is only an embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A collection device for shallow intertidal sediment columnar samples, characterized in that: It includes a sampling tube, a handle and a blade, wherein the blade is connected to the lower end of the sampling tube, the blade is a tubular structure, and is coaxially arranged with the sampling tube; the blade of the blade is located at the bottom of the blade; the handle is arranged at the upper end of the sampling tube, and includes a first handle, a second handle and a locking assembly, the first handle is provided with a first connecting piece, the second handle is provided with a second connecting piece, and the first connecting piece and the second connecting piece form a clamping space adapted to the shape of the sampling tube; the locking assembly includes a locking screw, a locking nut and a spring, the locking screw passes through the spring, the first connecting piece, the second connecting piece in sequence and is threadedly connected to the locking nut, the first connecting piece and the second connecting piece are both provided with an oblong hole for the locking screw to pass through, and the length direction of the oblong hole is parallel to the length direction of the sampling tube.

2. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: The upper end of the cutter head is inserted into the lower end of the sampling tube, and the outer wall of the cutter head is in contact with the inner wall of the sampling tube.

3. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: The cutter head is detachably connected to the sampling tube.

4. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: A plurality of elastic supporting plates are also provided in the lower end of the sampling tube. The elastic supporting plates are evenly distributed around the circumference of the lower end of the sampling tube. One end of the elastic supporting plate is connected to the cutter head or the lower end of the sampling tube, and the other end of the elastic supporting plate is suspended. The suspended ends of all the elastic supporting plates overlap each other.

5. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: The locking assembly is provided with two groups, corresponding to the two sides of the handle respectively; the first connecting member is provided with a first connecting part on both sides, the second connecting member is provided with a second connecting part on both sides, and the first connecting part and the second connecting part are provided with oblong holes.

6. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: The first connecting member and the second connecting member are both provided with a gripping portion for increasing friction.

7. The shallow intertidal zone sediment column sample collection device according to claim 6, characterized in that: The gripping portion is a rubber pad, or the gripping portion is a stripe or a frosted surface arranged on the first connecting member and the second connecting member.

8. The shallow intertidal zone sediment column sample collection device according to claim 1, characterized in that: A plurality of drainage hole groups are conveniently arranged in sequence along the length of the upper side of the sampling tube, and each drainage hole group includes at least one drainage hole.

9. The shallow intertidal zone sediment column sampling device according to claim 1, characterized in that: The sampling tube is made of hard transparent material.

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