Quantitative stratified sampler for surface sediments

Abstract

The quantitative stratified sampler comprises a sampling box body, a bottom inserting plate and a plurality of sampling partition plates, the upper end face and the lower end face of the sampling box body are of a completely-open structure, a plurality of inserting grooves are formed in one side face of the sampling box body at equal intervals, and when sampling is completed, the bottom inserting plate is inserted into the inserting grooves in the bottom of the sampling box body, and the sampling partition plates are inserted into the bottom inserting plates. And the plurality of sampling partition plates are respectively inserted into the corresponding slots to perform layered segmentation on the sample. The utility model provides a quantitative stratified sampler for surface sediments, which has the characteristics of accurate quantification (volume) and stratification.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, ocean and lake investigation, and in particular to a quantitative stratified sampler for surface sediments. Background Art

[0002] Currently, most of the samplers are cylindrical piston type (similar to push syringes), which need to be pushed out from above with pressure when sampling. Since the surface sediments have a high water content and are soft, the sediments are easily deformed during operation, changing the original sediment structure and volume. The sediments have a compaction effect, making it difficult to accurately reflect the original volume. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a quantitative stratified sampler for surface sediments, which has two major characteristics: accurate quantification (volume) and stratification.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A quantitative stratified sampler for surface sediments comprises a sampling box, a bottom plug plate and a plurality of sampling partitions. The upper and lower end surfaces of the sampling box are both completely open structures. A plurality of slots are evenly spaced on one side of the sampling box. When sampling is completed, the bottom plug plate is inserted into the bottom slot of the sampling box, and the plurality of sampling partitions are respectively inserted into the corresponding slots to divide the sample into layers.

[0006] Furthermore, two lifting rods are symmetrically provided on opposite sides of the upper port of the sampling box.

[0007] Furthermore, a plurality of embedding grooves are evenly spaced from top to bottom on the inner side walls of the two side surfaces where the lifting rod is provided, and the embedding grooves on the two side surfaces are arranged oppositely, and the height of the two oppositely arranged embedding grooves is the same as the height of a slot.

[0008] Furthermore, the bottom plug plate and the sampling partition plate have the same structure, both comprising a plug plate body, and a hand-held portion extending vertically upward is provided on one side of the plug plate body.

[0009] Furthermore, the cross-section of the sampling box is square, and the inner diameter of the upper port is 10cm×10cm; the height of the sampling box = the height of the sampling layer + the upper margin of the box + the lower margin of the box, the upper margin of the box is 3cm, and the lower margin of the box is 2cm.

[0010] Furthermore, the sampling box is an inverted stepped structure with a cross-sectional area gradually decreasing from the slot located at the bottom downwards.

[0011] When using the quantitative stratified sampler for surface sediments of the utility model, the sampling box is gently and slowly pressed into the sediment according to the depth requirements, the sampling box is taken out of the sediment by holding it with the bottom plug plate from the bottom, and then the sampling partition is inserted into the bottom slot of the side and fixed, and then the sampling partition can be inserted from the top to collect 100ml samples of different depths such as 0-1cm, 1-2cm, etc. in turn.

[0012] The inner walls of the two sides with the lifting rods are provided with embedded grooves, which are at the same height as the slots. The purpose is to fix the position trajectory and up and down movement of the plug-in board when it is inserted from the side, to ensure the sampling volume angle and to facilitate operation.

[0013] When using the quantitative stratified sampler for surface sediments in this practical information, after inserting the sampling box into the sediment, push aside the sediment on the side of the box, insert the bottom plug plate from the side to the bottom slot to fix the sample, or extend the bottom plug plate from the side to the bottom of the box to hold the sampling box and the sample, and then insert the sampling partition to fix it.

[0014] When sampling, use the sampling shovel to take out the top 0-1cm thick 10cm×10cm sample from the top, pull out the plug plate at 1cm, collect 0-2cm thick 10cm×10cm sample... and so on. When there are many layers to collect, you can also insert the layered sample plug plate into the sampler to fix the sample position, turn the sampler upside down, and use a similar method to collect samples from the bottom in sequence, so as to facilitate the sampling shovel to take samples and avoid the sampler being too deep in the vertical direction to be difficult to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the quantitative stratified sampling box for surface sediments described in the utility model;

[0016] Figure 2 It is a structural schematic diagram of the bottom plug plate and the sampling partition plate described in the utility model.

[0017] Among them, 1-sampling box, 2-bottom plug-in board, 3-lifting rod, 11-slot, 12-embedded groove, 21-plug-in board body, 22-hand-held part. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1As shown, a quantitative stratified sampler for surface sediments comprises a sampling box 1, a bottom plug plate 2 and a plurality of sampling partitions, the upper and lower end surfaces of the sampling box 1 are both completely open structures, a plurality of slots 11 are evenly spaced on one side surface of the sampling box 1, and two lifting rods 3 are symmetrically provided on opposite sides of the upper port of the sampling box 1; a plurality of embedded grooves 12 are evenly spaced from top to bottom on the inner side walls of the two sides provided with the lifting rods 3, and the embedded grooves 12 on the two side surfaces are arranged oppositely, and the height of the two oppositely arranged embedded grooves 12 is the same as the height of a slot 11; the sampling box 1 is an inverted step structure with a gradually decreasing cross-sectional area from the slot 11 at the bottom downward; when sampling is completed, the bottom plug plate 2 is inserted into the bottom slot of the sampling box 1, and the plurality of sampling partitions are respectively inserted into a slot 11 to divide the sample into layers.

[0020] The bottom plug plate 2 and the sampling partition plate have the same structure, and both include a plug plate body 21 . A hand-held portion 22 extending vertically upward is provided on one side of the plug plate body 21 .

[0021] The cross-sections of the upper and lower ports of the sampling box 1 are square, and the inner diameter of the upper port is 10cm×10cm; the height of the sampling box = the height of the sampling layer + the upper margin of the box + the lower margin of the box, the upper margin of the box is 3cm, and the lower margin of the box is 2cm. For example, when collecting surface sediments of 0~10cm, the height of the sampling box 1 is 15cm, the number of slots 11 on the side of the sampling box 1 is 10, and the center distance between two adjacent slots 11 is 1cm; when collecting surface sediments of 0~20cm, the height of the sampling box 1 is 25cm, and the number of slots 11 on the side of the sampling box 1 is 20.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative stratified sampler for surface sediments, characterized in that: It includes a sampling box, a bottom plug plate and multiple sampling partitions. The upper and lower end surfaces of the sampling box are both completely open structures. Multiple slots are evenly spaced on one side of the sampling box. When sampling is completed, the bottom plug plate is inserted into the bottom slot of the sampling box, and the multiple sampling partitions are respectively inserted into the corresponding slots to divide the samples into layers.

2. A quantitative stratified sampler for surface sediments according to claim 1, characterized in that: Two lifting rods are symmetrically arranged on opposite sides of the upper port of the sampling box.

3. A quantitative stratified sampler for surface sediments according to claim 2, characterized in that: A plurality of embedding grooves are evenly spaced from top to bottom on the inner side walls of the two side surfaces where the lifting rod is provided, and the embedding grooves on the two side surfaces are arranged oppositely, and the height of the two oppositely arranged embedding grooves is the same as the height of a slot.

4. A quantitative stratified sampler for surface sediments according to claim 3, characterized in that: The bottom plug plate and the sampling partition plate have the same structure, both comprising a plug plate body, and a hand-held portion extending vertically upward is provided on one side of the plug plate body.

5. A quantitative stratified sampler for surface sediments according to claim 4, characterized in that: The cross section of the sampling box is square, and the inner diameter of the upper and lower ports is 10cm×10cm; the height of the sampling box = the height of the sampling layer + the upper margin of the box + the lower margin of the box, the upper margin of the box is 3cm, and the lower margin of the box is 2cm.

6. A quantitative stratified sampler for surface sediments according to claim 1, characterized in that: The sampling box is an inverted stepped structure with a cross-sectional area gradually decreasing from the slot located at the bottom downward.

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