Intertidal zone surface sediment sampler

Abstract

The utility model discloses an intertidal zone surface sediment sampler which comprises a supporting plate, a vertical pipe is fixedly connected to the top of the supporting plate, scale marks are arranged at the bottom of the front side of the vertical pipe, a handle rod is fixedly connected to the top end of the vertical pipe, and a rotary supporting assembly is fixedly connected to the bottom of the supporting plate. The two sides of the rotary supporting assembly are fixedly connected with triangular shovel boxes with the bottoms of conical structures, and the two triangular shovel boxes are symmetrically arranged. According to the utility model, a series of structures are arranged, so that the two triangular shovel boxes can be conveniently inserted into intertidal zone surface sediments in an electric driving extrusion closing manner, and then stable shovel holding sampling is carried out, the collected surface sediments can be stably limited and prevented from leaking, and the sampling stability is improved; the sampling depth is conveniently limited, the limiting position is flexibly and accurately adjusted according to surface sampling requirements of different depths, personnel can conveniently and accurately control the sampling depth of surface sediments, and the sampling accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to an intertidal zone surface sediment sampler. Background Technique

[0002] The intertidal zone refers to the coastal zone between the mean highest tide level and the lowest tide level, which is a region with relatively strong land-sea interaction. With the change of hydrodynamic conditions in the intertidal zone, suspended solids in the water will slowly settle, causing pollutants such as heavy metals to accumulate in the intertidal zone sediments, thereby affecting intertidal zone organisms and human health through the biological enrichment and amplification effects of the food chain. The intertidal zone is the zone with the most intense interaction between land and sea and has important ecological and economic value to humans. Intertidal zone sediments are important carriers for biological habitats, land-sea material exchange, pollutant acceptance and self-purification, and their quality status is related to the environmental safety, ecological safety and food safety of the coastal zone; at the same time, this is also the area where human activities are the most active and an important accumulation area for pollutants such as heavy metals generated by human activities. To ensure the safety of this area, it is necessary to sample and detect the surface sediments in the intertidal zone.

[0003] At present, the surface sediment sampler is mainly a grab sampler, which is mainly used for collecting underwater surface sediment samples; the grab sampler uses a support rod to open two grab buckets. When the grab buckets contact the sediment, the support rod is released, and the sampler, under the action of its own gravity, partially sinks into the sediment for sampling. During the process of lifting the sampler, the two grab buckets slowly close, and the sediment is collected into the grab buckets; this grab sampler has the following defects in practical applications: 1. It is difficult to accurately control the sampling depth of the surface sediment, and it is easy to have the phenomenon that the sampling is too deep and there is too much original soil in the lower part; 2. Only using the self-weight closing of the two grab buckets when lifting, it is difficult to stably limit and prevent leakage of the collected surface sediment, and it is easy to have the phenomenon that the sample flows out between the two incompletely closed grab buckets during the lifting process, and the sampling stability is not ideal; In view of this, this application proposes an intertidal zone surface sediment sampler. Content of the Utility Model

[0004] The purpose of the utility model is to provide an intertidal zone surface sediment sampler to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An intertidal zone surface sediment sampler, including a support plate, a vertical pipe is fixedly connected to the top of the support plate, a scale line is arranged at the bottom of the front side of the vertical pipe, a handle rod is fixedly connected to the top of the vertical pipe, a rotating support assembly is fixedly connected to the bottom of the support plate, triangular shovel boxes with a conical structure at the bottom are fixedly connected to both sides of the rotating support assembly, the two triangular shovel boxes are symmetrically arranged, and the rotating support assembly is used for rotatably installing the two triangular shovel boxes. By pressing down the handle rod, the support plate is driven to move downward through the vertical pipe, and the support plate drives the two triangular shovel boxes to insert into the intertidal zone surface sediment through the rotating support assembly;

[0006] A same linkage drive assembly is hinged to the tops of the two triangular shovel boxes, an electric push rod with an extending end fixedly connected to the linkage drive assembly is fixedly installed on the top of the support plate, the electric push rod is located inside the vertical pipe, and the linkage drive assembly is used for driving the two triangular shovel boxes to close in proximity or separate in repulsion when the electric push rod is started, and sampling the intertidal zone surface sediment by clamping with the two triangular shovel boxes when they close in proximity;

[0007] A same U-shaped limiting rod is sleeved outside the two triangular shovel boxes, a vertical guiding and adjusting assembly sleeved outside the vertical pipe is fixedly connected to the top of the U-shaped limiting rod, the support plate is slidably sleeved on the vertical guiding and adjusting assembly, the U-shaped limiting rod is used to limit the depth of the triangular shovel boxes inserted into the intertidal zone surface sediment downward, and the vertical guiding and adjusting assembly is used to adjust the limiting height of the U-shaped limiting rod according to the surface sampling depth requirement.

[0008] Preferably, the rotating support assembly includes two supports fixedly connected to the bottom of the support plate, a same support shaft is fixedly connected between the two supports, rotating sleeves are fixedly connected to the adjacent sides of the two triangular shovel boxes, both rotating sleeves are rotatably sleeved on the support shaft, and the two rotating sleeves are arranged front and back.

[0009] Preferably, the linkage drive assembly includes a lifting rod arranged between the two supports, the top of the lifting rod is fixedly connected to the extending end of the electric push rod, and inclined connecting rods are hinged to the bottoms of the tops of the two triangular shovel boxes and the lifting rod, and the two connecting rods are symmetrically arranged.

[0010] Preferably, the vertical guiding and adjusting assembly includes two L-shaped guide rods fixedly connected to the top of the U-shaped limiting rod and arranged symmetrically, both the support plate and the lifting rod are slidably sleeved on the two L-shaped guide rods, a sliding sleeve is fixedly connected between the adjacent ends of the two L-shaped guide rods, the sliding sleeve is slidably sleeved outside the vertical pipe and is matched with the scale line, a T-shaped bolt is in movable contact with the right side of the vertical pipe, and the sliding sleeve is threadedly sleeved on the T-shaped bolt.

[0011] Preferably, a storage battery electrically connected to the electric push rod is fixedly installed on the left inner wall of the vertical pipe.

[0012] Preferably, the outer adhesive sleeve of the handle bar is provided with two anti-slip rubber sleeves.

[0013] Preferably, a threaded hole threadably connected to the T-bolt is provided on the right inner wall of the sliding sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This intertidal zone surface sediment sampler, through the support plate, vertical tube, handle bar, electric push rod, rotating support assembly, joint drive assembly and triangular shovel box, can be electrically driven to squeeze and close the two triangular shovel boxes and then insert them into the intertidal zone surface sediment for stable shovel sampling. The two triangular shovel boxes can be stably controlled to close to prevent the phenomenon of large gaps between the two boxes causing sample to fall during the lifting work after sampling, so as to achieve stable leakage prevention of the collected surface sediments and improve sampling stability.

[0016] 2. This intertidal surface sediment sampler can limit the sampling depth through the cooperation of the vertical tube, support plate, vertical guide adjustment component, scale line and circular limit rod, and can flexibly and accurately adjust the limit position according to the surface sampling requirements of different depths, so as to facilitate personnel to accurately control the sampling depth of surface sediments, avoid the phenomenon of excessive sampling resulting in excessive original soil in the lower part or too shallow sampling, and improve the sampling accuracy.

[0017] The utility model is provided with a series of structures, which facilitates stable shovel sampling after two triangular shovel boxes are inserted into the surface sediment of the intertidal zone by means of electrically driven squeezing and closing. The collected surface sediments can be stably limited and leak-proof, thereby improving sampling stability, facilitating sampling depth limitation and flexible and accurate adjustment of the limit position according to surface sampling requirements at different depths, thereby facilitating personnel to accurately control the sampling depth of surface sediments and improving sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an intertidal zone surface sediment sampler proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of an intertidal zone surface sediment sampler proposed by the utility model.

[0021] In the figure: 1, support plate; 2, vertical pipe; 3, handle rod; 4, support; 5, support shaft; 6, rotating sleeve; 7, triangular shovel box; 8, connecting rod; 9, lifting rod; 10, electric push rod; 11, storage battery; 12, U-shaped limiting rod; 13, L-shaped guide rod; 14, sliding sleeve; 15, T-shaped bolt; 16, scale line. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1 to 3 shown, a sampling device for intertidal surface sediments proposed in this embodiment includes a support plate 1. The top of the support plate 1 is fixedly connected with a vertical pipe 2. The bottom of the front side of the vertical pipe 2 is provided with a scale line 16. The top of the vertical pipe 2 is fixedly connected with a handle rod 3. The bottom of the support plate 1 is fixedly connected with a rotating support assembly. Both sides of the rotating support assembly are fixedly connected with triangular shovel boxes 7 with a conical bottom structure. The two triangular shovel boxes 7 are symmetrically arranged. Two anti-slip rubber sleeves are adhesively sleeved on the outer side of the handle rod 3. The rotating support assembly is used for rotatably installing the two triangular shovel boxes 7. Pressing down the handle rod 3 drives the support plate 1 to move downward through the vertical pipe 2. The support plate 1 drives the two triangular shovel boxes 7 to insert into the intertidal surface sediments through the rotating support assembly;

[0024] The tops of the two triangular shovel boxes 7 are hinged with the same linkage drive assembly. The top of the support plate 1 is fixedly installed with an electric push rod 10 whose extending end is fixedly connected with the linkage drive assembly. Among them, an activity through hole for the extending end of the electric push rod 10 to pass through is opened at the top of the support plate 1. The electric push rod 10 is located in the vertical pipe 2. A storage battery 11 electrically connected to the electric push rod 10 is fixedly installed on the left inner wall of the vertical pipe 2, which has the effect of supplying power to the electric push rod 10. The linkage drive assembly is used to drive the two triangular shovel boxes 7 to close together or separate from each other when the electric push rod 10 is started. When the two triangular shovel boxes 7 are closed together, they are used for sampling the intertidal surface sediments by holding and shoveling. A U-shaped limiting rod 12 is sleeved on the outer sides of the two triangular shovel boxes 7. The top of the U-shaped limiting rod 12 is fixedly connected with a vertical guide adjustment assembly sleeved on the outer side of the vertical pipe 2. The support plate 1 is slidably sleeved on the vertical guide adjustment assembly. The U-shaped limiting rod 12 is used to limit the depth of the triangular shovel boxes 7 inserted into the intertidal surface sediments downward. The vertical guide adjustment assembly is used to adjust the limiting height of the U-shaped limiting rod 12 according to the surface sampling depth requirement.

[0025] Specifically, the rotating support assembly includes two supports 4 fixedly connected to the bottom of the support plate 1. A support shaft 5 is fixedly connected between the two supports 4. Rotating sleeves 6 are fixedly connected to the adjacent sides of the two triangular shovel boxes 7. The two rotating sleeves 6 are both rotatably sleeved on the support shaft 5. The two rotating sleeves 6 are arranged front and back. A bearing is fixedly sleeved inside the rotating sleeve 6. The inner ring of the bearing is fixedly sleeved on the outer side of the support shaft 5. The rotating sleeve 6 is rotatably sleeved on the support shaft 5 through the bearing. The arranged supports 4, support shaft 5 and rotating sleeves 6 cooperate to rotatably install the two rotating sleeves 6 by the support 4 through the support shaft 5, and further use the two rotating sleeves 6 to rotatably install the two triangular shovel boxes 7.

[0026] Further, the combined drive assembly includes a lifting rod 9 arranged between the two supports 4. The top of the lifting rod 9 is fixedly connected to the extending end of the electric push rod 10. Inclined connecting rods 8 are hinged between the top of each of the two triangular shovel boxes 7 and the bottom of the lifting rod 9. The two connecting rods 8 are symmetrically arranged. The arranged lifting rod 9 and connecting rods 8 cooperate. The electric push rod 10 is used to drive the lifting rod 9 to move up and down. When the lifting rod 9 moves down, the two triangular shovel boxes 7 are squeezed and driven to rotate and close by the two connecting rods 8. When the lifting rod 9 moves up, the two triangular shovel boxes 7 are pulled and separated by the two connecting rods 8.

[0027] Further, the vertical guide adjustment assembly includes two L-shaped guide rods 13 fixedly connected to the top of the rectangular limiting rod 12 and arranged symmetrically. The support plate 1 and the lifting rod 9 are both slidably sleeved on the two L-shaped guide rods 13. First guide holes are opened at the top of the support plate 1 and slidably sleeved on the outer sides of the corresponding L-shaped guide rods 13 respectively, which has the effect of vertically sliding and guiding the L-shaped guide rods 13. Second guide holes are opened at the top of the lifting rod 9 and slidably sleeved on the outer sides of the corresponding L-shaped guide rods 13 respectively, which has the effect of vertically sliding and guiding the lifting rod 9. A sliding sleeve 14 is fixedly connected between the adjacent ends of the two L-shaped guide rods 13. The sliding sleeve 14 is slidably sleeved on the outer side of the vertical pipe 2 and cooperates with the scale line 16. A T-shaped bolt 15 is in movable contact with the right side of the vertical pipe 2. The sliding sleeve 14 is threadedly sleeved on the T-shaped bolt 15. A threaded hole for threaded connection with the T-shaped bolt 15 is opened on the inner wall of the right side of the sliding sleeve 14. By using the threaded connection relationship between the T-shaped bolt 15 and the threaded hole, it has the effect of facilitating the right-left displacement when the T-shaped bolt 15 rotates. The right-left displacement of the T-shaped bolt 15 is used to unlock and lock the sliding sleeve 14 respectively. The arranged L-shaped guide rods 13, sliding sleeve 14 and T-shaped bolt 15 cooperate. Reverse rotation of the T-shaped bolt 15 unlocks the sliding sleeve 14. Move the sliding sleeve 14 downward so that it drives the rectangular limiting rod 12 to move downward through the two L-shaped guide rods 13. By observing the downward displacement distance of the sliding sleeve 14 on the scale line 16, the limiting height of the rectangular limiting rod 12 can be accurately judged, achieving the effect of conveniently and accurately limiting the sampling depth of the surface sediment in the intertidal zone and preventing the phenomenon of over-deep or over-shallow sampling.

[0028] The usage method of this embodiment is as follows: When in use, the operator presses down the handle rod 3, which drives the support plate 1 to move downward through the vertical pipe 2. The support plate 1 drives the two triangular shovel boxes 7 to insert into the surface sediment of the intertidal zone through two supports 4, support shafts 5 and two rotating sleeves 6 in sequence until the loop-shaped limit rod 12 moves downward to contact the top of the surface sediment of the intertidal zone and is blocked and restricted from continuing to move downward, restricting the depth of continued downward insertion. At this time, the electric push rod 10 is started forward to drive the lifting rod 9 to move downward. The lifting rod 9 drives the two connecting rods 8 to squeeze and drive the two triangular shovel boxes 7 to rotate and close together. By using the method that the two triangular shovel boxes 7 close together to scoop and sample the surface sediment of the intertidal zone when they close together, the stable closing of the two can be controlled, preventing the phenomenon that there is a large gap between them during the upward lifting operation after sampling, resulting in sample leakage, and realizing stable prevention of leakage of the collected surface sediment and improving the sampling stability;

[0029] After sampling, when it is necessary to remove the sample, the electric push rod 10 is started in reverse to drive the lifting rod 9 to move upward. The lifting rod 9 drives the two triangular shovel boxes 7 to rotate and separate from each other through the two connecting rods 8, and then the sample of the surface sediment of the intertidal zone can be taken out. The whole device is small and convenient for the operator to carry and operate;

[0030] When it is necessary to limit the sampling depth according to the sampling requirements, the operator rotates the T-shaped bolt 15 in the reverse direction to release the locking of the sliding sleeve 14, moves the sliding sleeve 14 downward, which drives the loop-shaped limit rod 12 to move downward through the two L-shaped guide rods 13. By observing the downward movement distance of the sliding sleeve 14 on the scale line 16, the limiting height of the loop-shaped limit rod 12 can be accurately judged. The loop-shaped limit rod 12 is used to limit the depth of the lower part of the triangular shovel box 7 inserted into the sampling. After adjustment, the T-shaped bolt 15 is rotated forward to squeeze it against the vertical pipe 2 to lock the sliding sleeve 14, and then the loop-shaped limit rod 12 is locked. By adjusting the height of the loop-shaped limit rod 12, it is convenient to flexibly and accurately adjust the limiting position according to the surface sampling requirements at different depths, facilitating the operator to accurately control the sampling depth of the surface sediment, avoiding the phenomenon of excessive original soil in the lower part due to over-sampling or too shallow sampling, and improving the sampling accuracy.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intertidal zone surface sediment sampler, comprising a support plate (1), characterized in that: The top of the support plate (1) is fixedly connected to a vertical tube (2), a scale line (16) is provided at the front bottom of the vertical tube (2), the top of the vertical tube (2) is fixedly connected to a handle bar (3), the bottom of the support plate (1) is fixedly connected to a rotating support assembly, and both sides of the rotating support assembly are fixedly connected to triangular shovel boxes (7) with a conical bottom structure, and the two triangular shovel boxes (7) are symmetrically arranged; The tops of the two triangular shovel boxes (7) are hinged with a common driving assembly, and the top of the support plate (1) is fixedly installed with an electric push rod (10) whose protruding end is fixedly connected to the driving assembly, and the electric push rod (10) is located in the vertical pipe (2); The outer sides of the two triangular shovel boxes (7) are sleeved with a same circular limit rod (12), the top of the circular limit rod (12) is fixedly connected with a vertical guide adjustment component sleeved on the outer side of the vertical pipe (2), and the support plate (1) is slidably sleeved on the vertical guide adjustment component.

2. The intertidal zone surface sediment sampler according to claim 1, characterized in that: The rotating support assembly comprises two supports (4) fixedly connected to the bottom of the support plate (1); a same supporting shaft (5) is fixedly connected between the two supports (4); a rotating sleeve (6) is fixedly connected to the adjacent sides of the two triangular shovel boxes (7); the two rotating sleeves (6) are both rotatably sleeved on the supporting shaft (5); and the two rotating sleeves (6) are arranged front and back.

3. The intertidal zone surface sediment sampler according to claim 2, characterized in that: The joint drive assembly comprises a lifting rod (9) arranged between two supports (4), the top of the lifting rod (9) is fixedly connected to the protruding end of the electric push rod (10), the tops of the two triangular shovel boxes (7) are hinged to the bottom of the lifting rod (9) with inclined connecting rods (8), and the two connecting rods (8) are symmetrically arranged.

4. The intertidal zone surface sediment sampler according to claim 3, characterized in that: The vertical guide adjustment assembly comprises two L-shaped guide rods (13) fixedly connected to the top of the circular limit rod (12) and symmetrically arranged. The support plate (1) and the lifting rod (9) are both slidably sleeved on the two L-shaped guide rods (13). A sliding sleeve (14) is fixedly connected between the adjacent ends of the two L-shaped guide rods (13). The sliding sleeve (14) is slidably sleeved on the outside of the vertical tube (2) and matched with the scale line (16). The right side of the vertical tube (2) is movably contacted with a T-shaped bolt (15), and the sliding sleeve (14) is threadedly sleeved on the T-shaped bolt (15).

5. The intertidal zone surface sediment sampler according to claim 1, characterized in that: A storage battery (11) electrically connected to the electric push rod (10) is fixedly mounted on the left inner wall of the vertical pipe (2).

6. The intertidal zone surface sediment sampler according to claim 1, characterized in that: The outer adhesive sleeve of the handle bar (3) is provided with two anti-slip rubber sleeves.

7. The intertidal zone surface sediment sampler according to claim 4, characterized in that: A threaded hole threadably connected to a T-shaped bolt (15) is provided on the right inner wall of the sliding sleeve (14).

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