Bottom mud sampling device

Abstract

The utility model relates to a bottom mud sampling device which comprises an outer shovel, the outer shovel comprises a handle, an outer sleeve and a sampling pipe, the handle is installed at the top of the outer sleeve, the sampling pipe is installed at the bottom of the outer sleeve, a plurality of sampling openings are formed in the sampling pipe, an inner shovel is rotatably connected in the outer sleeve and the sampling pipe, and the inner shovel is used for sealing the sampling openings. Cutting rings are mounted at the bottoms of the sampling tubes. The bottom mud collected by the bottom mud sampling device disclosed by the utility model is columnar, the longitudinal section of the bottom mud can be subjected to layered collection, a sample can be relatively completely stored, the characters of the bottom mud can be relatively comprehensively analyzed, and the sampling point position is relatively accurate and is relatively representative.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling tools, and in particular relates to a bottom mud sampling device. Background Art

[0002] Bottom mud refers to the bottom sediment of rivers, lakes and other water bodies. It is a mixture of clay, silt, organic matter and various minerals that have been deposited over a long period of time. The collection and analysis of bottom mud is the key to understanding water pollution and its sources, and it is also an indispensable analysis object in environmental investigation and monitoring. Therefore, it is crucial to ensure the effective collection of bottom mud, and the bottom mud sampling device is the key to ensure the effective collection of bottom mud. The currently used grab-type bottom mud sampling device is relatively bulky, and the characteristics of the longitudinal profile of the bottom mud are not considered during sampling, which to a certain extent destroys the integrity of the bottom mud sample.

[0003] Therefore, in order to solve the above-mentioned technical problems, it is necessary to provide an innovative sediment sampling device to overcome the above-mentioned defects in the prior art. Utility Model Content

[0004] The utility model aims to provide a bottom mud sampling device which is convenient for taking out bottom mud.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes an outer shovel, the outer shovel includes a handle, an outer sleeve, and a sampling tube, the handle is installed at the top of the outer sleeve, the sampling tube is installed at the bottom of the outer sleeve, a plurality of sampling ports are opened on the sampling tube, an inner shovel is rotatably connected in the outer sleeve and the sampling tube, the inner shovel is used to close the sampling port, and a ring knife is installed at the bottom of the sampling tube.

[0006] By adopting the above technical solution, the inner shovel is turned to close the sampling port, the sampling tube is inserted into the bottom mud using the ring knife, the handle is turned to allow the bottom mud to enter the sampling tube, and after a certain sampling depth is reached, the sampling tube is pulled out and placed horizontally, and the inner shovel is turned to open the sampling port to ensure effective collection of the bottom mud. The operation is simple and easy to carry, and the collected bottom mud is columnar.

[0007] A bottom sediment sampling device of the utility model is further configured as follows: the inner shovel includes a rotating rod, an inner sleeve and a baffle, the rotating rod is installed on the top of the inner sleeve, the baffle is installed on the bottom of the inner sleeve, the inner sleeve is rotatably connected to the outer sleeve, the baffle is located in the sampling tube, it fits with the inner wall of the sampling tube, and can close the sampling port.

[0008] By adopting the above technical solution, the baffle can prevent the bottom mud from entering the sampling tube from the sampling port when the sampling tube is extended into the bottom mud. After taking out the sampling tube, the rotating rod is rotated to link the inner sleeve and the baffle to move, so as to open the sampling port and take samples from the sampling port to ensure the integrity of the bottom mud when taking out the bottom mud.

[0009] A bottom mud sampling device of the utility model is further configured as follows: an outer sleeve is provided with a slot for facilitating the rotation of the rotating rod.

[0010] By adopting the above technical solution, the slot provides a range for the rotation rod to move, and the rotation rod enables the inner shovel to rotate in the outer sleeve.

[0011] A sediment sampling device of the utility model is further configured as follows: a plurality of sampling ports are arranged in a longitudinal array on a sampling tube.

[0012] By adopting the above technical solution, the longitudinal array can take out the complete longitudinally arranged sediment when taking sediment, so as to analyze the sediment properties more comprehensively.

[0013] A bottom mud sampling device of the utility model is further configured as follows: the ring knife comprises a knife edge, and the top of the knife edge is threadedly connected with the bottom of the sampling tube.

[0014] By adopting the above technical solution, the threaded structure facilitates the disassembly and assembly between the knife edge and the sampling tube.

[0015] The utility model provides a sediment sampling device which is further configured to include an inner tube and an outer tube, wherein the inner tube is threadedly connected to the inner casing, and the outer tube is threadedly connected to the outer casing.

[0016] By adopting the above technical solution, the overall length can be adjusted by installing inner tubes and outer tubes of different lengths, thereby changing the sampling depth.

[0017] A sediment sampling device of the utility model is further configured as follows: a collecting tube is installed in the sampling tube.

[0018] By adopting the above technical solution, the collecting tube can collect the bottom mud. When collecting the bottom mud, it is only necessary to put the collecting tube into or pour it out from the bottom of the sampling tube, thereby facilitating the collection of the bottom mud.

[0019] A sediment sampling device of the utility model is further configured as follows: a collecting tube comprises a plastic tube and two plastic covers, and the two plastic covers are respectively installed at two ends of the plastic tube.

[0020] By adopting the technical solution, the plastic cover can close the plastic tube so as to transport the plastic tube.

[0021] A sediment sampling device of the utility model is further configured as follows: the ring knife also includes a retaining ring for limiting the movement of the collection tube, and the retaining ring is located on the side wall inside the knife edge.

[0022] By adopting the above technical solution, the baffle can limit the movement of the collecting tube, thereby preventing the sampling tube from slipping out of the collecting tube when taking out the bottom mud.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The inner shovel and the outer shovel of the sediment sampling device in the utility model can collect the longitudinal profile of the sediment in layers, can preserve the samples more completely, and can analyze the sediment properties more comprehensively, and the sampling points are more accurate and more representative.

[0025] 2. When the collecting tube of the sediment sampling device of the utility model is capable of collecting sediment, it is only necessary to put the collecting tube into or pour it out from the bottom of the sampling tube to collect the sediment.

[0026] 3. The sediment sampling device of the utility model is easy to operate and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the device of the utility model;

[0028] Figure 2 This is a front view structural diagram of the device of the utility model;

[0029] Figure 3 It is a schematic diagram of the top view of the structure of the device of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the sample collection tube in the device of the utility model;

[0031] Figure 5 This is a schematic diagram of the ring knife structure in the device of the utility model;

[0032] Figure 6 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0033] Please refer to the instruction manual Figure 1 To Attachment Figure 6 As shown, the utility model is a sediment sampling device, including an outer shovel 1, the outer shovel 1 includes a handle 11, an outer sleeve 12, and a sampling tube 13. As a preferred embodiment, the handle 11, the outer sleeve 12, and the sampling tube 13 are all hollow stainless steel tubes, and the outer surface of the handle 11 is equipped with an anti-slip sleeve.

[0034] The handle 11 is welded to the top of the outer sleeve 12, the sampling tube 13 is welded to the bottom of the outer sleeve 12, a plurality of sampling ports 14 are opened on the sampling tube 13, and the plurality of sampling ports 14 are arranged in a longitudinal array on the sampling tube 13. The longitudinal array can take out the complete longitudinally arranged bottom mud when taking the bottom mud, so as to more comprehensively analyze the bottom mud properties.

[0035] An inner shovel 2 is rotatably connected to the outer sleeve 12 and the sampling tube 13. The inner shovel 2 includes a rotating rod 21, an inner sleeve 22 and a baffle 23. As a preferred embodiment, the rotating rod 21 and the inner sleeve 22 are both hollow stainless steel tubes, and the baffle 23 is a semi-cylindrical stainless steel tube; the rotating rod 21 is welded to the top of the inner sleeve 22, and the baffle 23 is welded to the bottom of the inner sleeve 22. The inner sleeve 22 is rotatably connected to the outer sleeve 12, and the baffle 23 is located in the sampling tube 13, which fits with the inner wall of the sampling tube 13 and can close the sampling port 14. The baffle 23 can prevent the bottom mud from entering the sampling port 14 when the sampling tube 13 is extended into the bottom mud. The sampling tube 13 is taken out and the baffle 23 is rotated to open the sampling port 14, which can ensure the integrity of the bottom mud.

[0036] The outer sleeve 12 is provided with a slot 6 for facilitating the rotation of the rotating rod 21. The slot 6 provides a range for the rotation of the rotating rod 21 so that the inner shovel 2 can rotate in the outer sleeve 12. As a preferred embodiment, the slot 6 is semicircular so that the rotating rod 21 can be linked with the baffle 23 in the sampling tube 13 to rotate 180°.

[0037] The inner tube 32 is threadedly connected to the inner sleeve 22, and the outer tube 31 is threadedly connected to the outer sleeve 12. The inner tube 32 and the outer tube 31 form an extension rod 3, and the extension rod 3 can adjust the overall length, thereby changing the sampling depth.

[0038] A collecting tube 5 is installed in the sampling tube 13. The collecting tube 5 can collect bottom sediment. When collecting bottom sediment, the collecting tube 5 only needs to be put into or poured out from the bottom of the sampling tube 13, so as to facilitate the collection of bottom sediment. The collecting tube 5 includes a plastic tube 52 and two plastic covers 51. The two plastic covers 51 are respectively installed at both ends of the plastic tube 52. The plastic cover 51 can close the plastic tube 52 so as to transport the plastic tube 52.

[0039] A ring cutter 4 is installed at the bottom of the sampling tube 13, and the ring cutter 4 includes a cutting edge 43. A threaded ring 42 is installed on the top of the cutting edge 43, which is threadedly connected to the bottom of the sampling tube 13 through the threaded ring 42. The threaded structure facilitates the disassembly and assembly of the cutting edge 43. The sampling tube 13 is inserted into the bottom mud using the ring cutter 4. The ring cutter 4 also includes a retaining ring 41 for limiting the movement of the collecting tube 5. The retaining ring 41 is located on the side wall inside the cutting edge 43 to prevent the sampling tube 13 from slipping out of the collecting tube 5 when taking out the bottom mud.

[0040] The working principle of a sediment sampling device of the utility model is as follows:

[0041] When it is necessary to sample the bottom mud, according to the different sampling depths, the inner tube 32 of appropriate length is threadedly connected to the inner sleeve 22, and the outer tube 31 is threadedly connected to the outer sleeve 12; then the rotating rod 21 is turned to drive the inner sleeve 22 and the inner shovel 2 to rotate, so that the baffle 23 closes several sampling ports 14, so that the sampling tube 13 is in a closed state; the thread ring 42 is inserted to the bottom of the sampling tube 13, the knife edge 43 is turned to install the knife edge 43 on the sampling tube 13, and the sampling tube 13 is vertically inserted into the bottom mud, and the handle 11 is turned to make the bottom mud enter the sampling tube 13 through the action of the knife edge 43. After a certain sampling depth is met, the sampling tube 13 is pulled out; the sampling tube 13 is placed horizontally, and the rotating rod 21 is turned to drive the baffle 23 to rotate, so that the sampling port 14 is in an open state, and layered sampling is performed at different sampling ports 14 positions.

[0042] When the sediment needs to be stored and transported, several plastic tubes 52 with plastic covers 51 removed from both ends are loaded into the sampling tube 13, the threaded ring 42 is inserted to the bottom of the sampling tube 13, the blade 43 is rotated to install the blade 43 on the sampling tube 13, wherein the retaining ring 41 can prevent the plastic tube 52 from sliding out of the sampling tube 13, the sampling tube 13 is vertically inserted into the sediment, the handle 11 is rotated, and the sediment enters the sampling tube 13 through the action of the blade 43, the sampling tube 13 containing the sediment is pulled out, the blade 43 is rotated to remove the blade 43 from the sampling tube 13, the plastic tube 52 is taken out, and the plastic cover 51 is covered, so that the sediment can be sealed and stored and transported in its original state.

[0043] The above specific implementation methods are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom mud sampling device, including an outer shovel, characterized in that: The outer shovel includes a handle, an outer sleeve, and a sampling tube. The handle is installed on the top of the outer sleeve, and the sampling tube is installed at the bottom of the outer sleeve. A plurality of sampling ports are provided on the sampling tube. An inner shovel is rotatably connected between the outer sleeve and the sampling tube. The inner shovel is used to close the sampling port. A ring knife is installed at the bottom of the sampling tube.

2. A bottom mud sampling device according to claim 1, characterized in that: The inner shovel includes a rotating rod, an inner sleeve and a baffle. The rotating rod is installed on the top of the inner sleeve, the baffle is installed on the bottom of the inner sleeve, the inner sleeve is rotatably connected to the outer sleeve, and the baffle is located in the sampling tube, which fits the inner wall of the sampling tube and can close the sampling port.

3. A bottom mud sampling device according to claim 2, characterized in that: The outer sleeve is opened with a groove for easy rotation of the rotary rod.

4. A bottom mud sampling device according to claim 1, characterized in that: A plurality of sampling ports are arranged longitudinally on the sampling tube.

5. A bottom mud sampling device according to claim 1, characterized in that: The ring knife includes a knife edge, and the top of the knife edge is threaded to the bottom of the sampling tube.

6. A bottom mud sampling device according to claim 1, characterized in that: It also includes an inner pipe and an outer pipe, an inner pipe and an inner sleeve are threaded, and an outer pipe and an outer sleeve are threaded.

7. A bottom mud sampling device according to claim 5, characterized in that: A collecting tube is installed in the sampling tube.

8. A bottom mud sampling device according to claim 7, characterized in that: The collection tube includes a plastic tube and two plastic covers, and the two plastic covers are installed at both ends of the plastic tube.

9. A bottom mud sampling device according to claim 8, characterized in that: The ring knife also includes a stop ring for restricting movement of the collection tube, which is located on the side wall inside the blade.

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