A grab sampler for preventing sample loss in sediment surface

Abstract

This utility model provides a sediment surface grab sampler to prevent sample loss, including a mounting base. The top of the mounting base has two holding cavities, each housing a battery. A second groove is located inside the mounting base above the holding cavities, and a second sealing plate is located inside the second groove above the battery. A sediment surface sampling mechanism is located at the bottom of the mounting base, comprising two grabs symmetrically arranged at the bottom of the mounting base. Rubber sealing strips are fitted around the outer edges of the two grabs on their closest sides. The mounting base is used to install the sediment surface sampling mechanism and the battery. The battery provides power to the sediment surface sampling mechanism when sampling the sediment layer, thus enabling sampling. The sediment surface sampling mechanism is used to sample sediment layers submerged underwater while preventing sample loss with the water flow.

Description

Technical Field

[0001] This utility model relates to the field of sediment collection technology, specifically to a surface grab sampler for sediments that prevents sample loss. Background Technology

[0002] Sediment, a geological term, refers to any particulate matter that can be moved by fluid flow and eventually becomes a layer of solid particles beneath water or other liquids. Sedimentation is the process of settling suspended material.

[0003] In fields such as environmental science, marine research, and hydraulic engineering, accurate sampling of sediment surface is crucial. Traditional grab samplers suffer from sample loss in practical applications, which affects the accuracy and reliability of sampling and consequently has an adverse impact on subsequent analysis and research. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a surface grab sampler for sediments that prevents sample loss.

[0005] The specific technical solution is as follows:

[0006] A sediment surface grab sampler to prevent sample loss includes a mounting base. The top of the mounting base has two holding cavities. A battery is fixedly installed inside the holding cavities. A second groove is provided inside the mounting base and above the holding cavities. A second sealing plate is provided inside the second groove and above the battery. A sediment surface sampling mechanism is provided at the bottom of the mounting base.

[0007] The sediment surface sampling mechanism includes two grabs symmetrically arranged at the bottom of the mounting base. A rubber sealing strip is fitted on the outer edge of the two grabs on the side closest to each other. Two sliding grooves are opened at the bottom of the mounting base and above the grabs. Two mounting cavities are opened inside the mounting base and on one side of each sliding groove. An electric push rod is fixedly installed inside the mounting cavity. A first groove is opened inside the mounting base and on one side of the mounting cavity. A first sealing plate is arranged inside the first groove.

[0008] As a preferred embodiment of this utility model, two sliders are slidably connected inside the chute, the bottom of the sliders is fixedly connected to the top of the grab bucket, and the output end of the electric push rod passes through the inside of the chute and is fixedly connected to one side of the slider.

[0009] As a preferred embodiment of the present invention, a first receiving cavity is provided inside the mounting base and on the inner side of the first groove. A first rubber sealing gasket is inserted inside the first receiving cavity, and one side of the first rubber sealing gasket is in contact with the first sealing plate.

[0010] As a preferred embodiment of this utility model, four first screws are interspersed inside the first sealing plate, and one side of the first screw extends into the interior of the mounting base and is connected to the mounting base by threads.

[0011] As a preferred embodiment of this utility model, two lifting rings are fixedly installed on the top of the mounting base, and an electrical interface is embedded on the top of the mounting base between the lifting rings.

[0012] As a preferred embodiment of the present invention, a second receiving cavity is provided inside the mounting base and below the second groove, and a second rubber sealing gasket is provided inside the second receiving cavity, with the top of the second rubber sealing gasket contacting the bottom of the second sealing plate.

[0013] In a preferred embodiment of this utility model, four second screws are interspersed inside the second sealing plate, and the bottom of the second screws passes through the mounting base and is connected to the mounting base by threads.

[0014] This utility model has the following beneficial effects:

[0015] 1. The sediment surface grab sampler provided by this utility model is equipped with a mounting base for installing the sediment surface sampling mechanism and a storage battery. The storage battery is used to provide power to the sediment surface sampling mechanism when sampling the sediment layer, thereby enabling the sediment surface sampling mechanism to sample the sediment layer. The sediment surface sampling mechanism is used to sample the sediment layer that is submerged in water, while preventing the sample from being lost with the water flow.

[0016] 2. The sediment surface grab sampler provided by this utility model has two grabs for embedding under the sediment layer and grabbing the sediment layer. The rubber sealing strip is used to increase the sealing between the two grabs when they are closed, so as to prevent the internal water flow from flowing and taking away the sediment layer during lifting, thus affecting the sampling results. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a sediment surface grab sampler for preventing sample loss provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the mounting base structure of the sediment surface grab sampler for preventing sample loss provided in this embodiment of the utility model;

[0019] Figure 3 A bottom view of the mounting base of the sediment surface grab sampler for preventing sample loss provided in this embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the grab bucket structure of a sediment surface grab bucket sampler for preventing sample loss provided in this embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the second sealing plate structure of the sediment surface grab sampler for preventing sample loss provided in this embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the first sealing plate structure of the sediment surface grab sampler for preventing sample loss provided in this embodiment of the utility model;

[0023] Figure 7 A grab sampler for preventing sample loss of sediment surface layer provided in this embodiment of the utility model Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0024] In the attached diagram: 1. Mounting base; 2. Lifting ring; 3. Sediment surface sampling mechanism; 301. Grab bucket; 302. Rubber sealing strip; 303. First sealing plate; 304. Slide groove; 305. Electric push rod; 306. Slider; 307. First screw; 308. First rubber sealing gasket; 309. First groove; 310. Mounting cavity; 311. First receiving cavity; 4. Electrical interface; 5. Second sealing plate; 6. Second screw; 7. Second groove; 8. Battery; 9. Second receiving cavity; 10. Second rubber sealing gasket; 11. Container cavity. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example

[0030] The sediment surface grab sampler provided in this embodiment prevents sample loss, such as... Figures 1-7 As shown, the device includes a mounting base 1, with two holding cavities 11 on the top of the mounting base 1. A storage battery 8 is fixedly installed inside the holding cavities 11. A second groove 7 is provided inside the mounting base 1 and above the holding cavities 11. A second sealing plate 5 is provided inside the second groove 7 and above the storage battery 8. A sediment surface sampling mechanism 3 is provided at the bottom of the mounting base 1. The mounting base 1 is used to install the sediment surface sampling mechanism 3 and the storage battery 8. The storage battery 8 is used to provide power to the sediment surface sampling mechanism 3 when sampling the sediment layer, thereby enabling the sediment surface sampling mechanism 3 to sample the sediment layer. The sediment surface sampling mechanism 3 is used to sample the sediment layer that is submerged in water, while preventing the sample from being lost with the water flow.

[0031] The sediment surface sampling mechanism 3 includes two grabs 301 symmetrically arranged at the bottom of the mounting base 1. A rubber sealing strip 302 is fitted on the outer edge of the side of the two grabs 301 that is close to each other. Two grooves 304 are opened at the bottom of the mounting base 1 and above the grabs 301. Two mounting cavities 310 are opened inside the mounting base 1 and on one side of the grooves 304. An electric push rod 305 is fixedly installed inside the mounting cavity 310. A first groove 309 is opened inside the mounting base 1 and on one side of the mounting cavity 310. A first sealing plate 303 is provided inside the first groove 309. The two grabs 301 are used to embed under the sediment layer and grab the sediment layer. The rubber sealing strip 302 is used to increase the sealing between the two grabs 301 when they are closed, so as to prevent the water inside from flowing and carrying away the sediment layer during lifting, thus affecting the sampling results.

[0032] The chute 304 has two sliding blocks 306 inside, the bottom of which is fixedly connected to the top of the grab bucket 301. The output end of the electric push rod 305 passes through the interior of the chute 304 and is fixedly connected to one side of the sliding blocks 306. The chute 304 and sliding blocks 306 are used to install the grab bucket 301. The electric push rod 305 is used to push the sliding blocks 306 to move the grab bucket 301 to a relatively close side, thereby achieving the closure of the two grab buckets 301 to grab the sediment layer.

[0033] A first receiving cavity 311 is provided inside the mounting base 1 and on the inner side of the first groove 309. A first rubber sealing gasket 308 is inserted inside the first receiving cavity 311. One side of the first rubber sealing gasket 308 contacts the first sealing plate 303. The first receiving cavity 311 is used to accommodate the first rubber sealing gasket 308. The first rubber sealing gasket 308 is used to increase the sealing between the first sealing plate 303 and the first groove 309, and to prevent external water from entering the interior of the mounting cavity 310 and causing damage to the electric push rod 305.

[0034] Four first screws 307 are interspersed inside the first sealing plate 303. One side of the first screw 307 extends into the interior of the mounting base 1 and is connected to the mounting base 1 by threads. The first screws 307 are used to fix the first sealing plate 303 inside the first groove 309.

[0035] Two lifting rings 2 are fixedly installed on the top of the mounting base 1. An electrical interface 4 is embedded on the top of the mounting base 1 between the lifting rings 2. The lifting rings 2 are used to connect the mounting base 1 to an external traction mechanism to achieve overall lifting. The electrical interface 4 is used to charge the UI battery 8. When not charging, the electrical interface 4 is equipped with a sealing plug to prevent external water from entering the interior of the electrical interface 4.

[0036] A second receiving cavity 9 is provided inside the mounting base 1 and below the second groove 7. A second rubber sealing gasket 10 is provided inside the second receiving cavity 9. The top of the second rubber sealing gasket 10 contacts the bottom of the second sealing plate 5. The second receiving cavity 9 and the second rubber sealing gasket 10 are provided to increase the sealing performance of the second sealing plate 5 during installation and prevent external water from entering the interior of the holding cavity 11 and causing the battery 8 to be corroded and damaged.

[0037] Four second screws 6 are interspersed inside the second sealing plate 5. The bottom of the second screws 6 passes through the mounting base 1 and is connected to the mounting base 1 by threads. The second screws 6 are used to fix the second sealing plate 5 to the mounting base 1.

[0038] In use, the traction rope of the external winch mechanism is connected to the sediment surface sampling mechanism 3. After connection, the entire unit is lowered into the water and sunk by the winch mechanism, allowing the grab bucket 301 to penetrate into the interior of the sediment layer. After penetration, the electric push rod 305 pushes the slider 306 to move the two grab buckets 301 closer together, thus collecting the sediment layer between the grab buckets 301. Because the edges of the grab buckets 301 are equipped with rubber sealing strips 302, the two grab buckets 301 are sealed. At the same time, the four electric push rods 305 are controlled by the same controller, so that the four electric push rods 305 open and operate synchronously, thus pushing the grab buckets 301 synchronously. After collection, the entire unit is lifted by the traction rope of the winch mechanism. Because the rubber sealing strips 302 are set between the grab buckets 301, the external water flow will not impact the sediment layer grabbed inside the grab buckets 301 during the ascent. After lifting, the water inside the grab buckets 301 is slowly opened to slowly flow out and remove the sediment layer inside.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface sediment grab sampler to prevent sample loss, characterized in that, The device includes a mounting base (1), which has two holding cavities (11) on its top. A storage battery (8) is fixedly installed inside the holding cavity (11). A second groove (7) is provided inside the mounting base (1) and above the holding cavity (11). A second sealing plate (5) is provided inside the second groove (7) and above the storage battery (8). A sediment surface sampling mechanism (3) is provided at the bottom of the mounting base (1). The sediment surface sampling mechanism (3) includes two grabs (301) symmetrically arranged at the bottom of the mounting base (1). A rubber sealing strip (302) is sleeved on the outer edge of the two grabs (301) on the side closest to each other. Two grooves (304) are opened at the bottom of the mounting base (1) and above the grabs (301). Two mounting cavities (310) are opened inside the mounting base (1) and on one side of the grooves (304). An electric push rod (305) is fixedly installed inside the mounting cavity (310). A first groove (309) is opened inside the mounting base (1) and on one side of the mounting cavity (310). A first sealing plate (303) is provided inside the first groove (309).

2. The sediment surface grab sampler for preventing sample loss according to claim 1, characterized in that, The chute (304) has two sliders (306) slidably connected inside. The bottom of the sliders (306) is fixedly connected to the top of the grab bucket (301). The output end of the electric push rod (305) passes through the inside of the chute (304) and is fixedly connected to one side of the sliders (306).

3. The sediment surface grab sampler for preventing sample loss according to claim 1, characterized in that, The mounting base (1) has a first receiving cavity (311) inside and on the inner side of the first groove (309). A first rubber sealing gasket (308) is inserted inside the first receiving cavity (311), and one side of the first rubber sealing gasket (308) is in contact with the first sealing plate (303).

4. The sediment surface grab sampler for preventing sample loss according to claim 1, characterized in that, Four first screws (307) are interspersed inside the first sealing plate (303). One side of the first screw (307) extends into the interior of the mounting base (1) and is connected to the mounting base (1) by threads.

5. The sediment surface grab sampler for preventing sample loss according to claim 1, characterized in that, Two lifting rings (2) are fixedly installed on the top of the mounting base (1), and an electrical interface (4) is embedded on the top of the mounting base (1) and between the lifting rings (2).

6. The sediment surface grab sampler for preventing sample loss according to claim 1, characterized in that, The mounting base (1) has a second receiving cavity (9) located inside and below the second groove (7). The second receiving cavity (9) is provided with a second rubber sealing gasket (10), and the top of the second rubber sealing gasket (10) is in contact with the bottom of the second sealing plate (5).

7. The sediment surface grab sampler for preventing sample loss according to any one of claims 1-6, characterized in that, The second sealing plate (5) has four second screws (6) inserted inside it. The bottom of the second screws (6) passes through the mounting base (1) and is connected to the mounting base (1) by threads.

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