Marine sediment sampler

Abstract

The utility model discloses a marine sediment sampler which comprises a sampling cylinder and a sample storage chamber, a driving cavity is fixedly arranged at the upper end of the sample storage chamber, a sampling channel is arranged in the sampling cylinder, a spiral sampler is arranged in the sampling channel in a clearance fit mode, and a transmission shaft is fixedly arranged at the upper end of a middle shaft of the spiral sampler. The upper end of the transmission shaft extends into the driving chamber, a driving assembly used for driving the transmission shaft to rotate and move up and down is arranged in the driving chamber, a filter plate is fixedly arranged in the sample storage chamber and close to the top surface, the filter plate divides the sample storage chamber into a sample chamber and a drainage chamber, and a plurality of drainage holes are formed in the side surface of the drainage chamber; water in a sample can be effectively removed by arranging the filter plate, the filter plate is extruded upwards along with more sediments entering the sample chamber, the sediments are compressed and dehydrated through the filter plate, the collection amount is increased, the sample can be quickly taken out by reversely rotating the spiral sampler, complex disassembly operation is not needed, and the sampling efficiency is improved. And the sample taking efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, and in particular relates to a marine sediment sampler. Background Technology

[0002] Marine sediments are an important component of the marine environment, playing a vital role in marine ecosystems and geological research. Traditional marine sediment collection equipment has revealed numerous problems over long-term practice. Early collection equipment consisted mostly of simple grabbing or digging tools with relatively simple structures and limited functions. During marine sediment collection, due to limited storage chambers, the collected samples contained a large amount of water. This not only resulted in relatively low sediment content but also caused significant inconvenience for sample storage and transportation. Furthermore, after collection, the samples were difficult to remove, often requiring disassembly, which was time-consuming and labor-intensive.

[0003] In summary, traditional sediment samplers have significant drawbacks. Firstly, they cannot dehydrate and compress the collected sediments, resulting in low sample quality that fails to meet the needs of scientific research and practical applications. Secondly, the difficulty in retrieving samples hinders frequent and repeated sample collection, impacting work efficiency and sampling progress.

[0004] This invention relates to a marine sediment sampler designed to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A marine sediment sampler includes a sampling cylinder and a sample storage chamber connected sequentially from bottom to top. A drive chamber is fixedly provided at the upper end of the sample storage chamber. A sampling channel is provided inside the sampling cylinder. A spiral sampler is provided in the sampling channel with clearance fit. A drive shaft is fixedly provided at the upper end of the central shaft of the spiral sampler. The upper end of the drive shaft extends into the interior of the drive chamber. A drive assembly for driving the drive shaft to rotate and move up and down is provided inside the drive chamber. A filter plate is fixedly provided near the top surface inside the sample storage chamber. The filter plate divides the sample storage chamber into a sample chamber located at the bottom and a drainage chamber located at the top. Multiple drainage holes are provided on the side of the drainage chamber.

[0007] As a preferred embodiment, the spiral sampler includes a central shaft fixedly connected to the lower end of the drive shaft, spiral blades fixedly mounted on the central shaft, and a drill bit fixedly mounted at the lower end of the central shaft.

[0008] As a preferred embodiment, the drive assembly includes an electric push rod fixedly disposed on the top surface inside the drive chamber, a lifting plate fixedly disposed on the piston end of the electric push rod, a motor fixedly disposed on the bottom of the lifting plate, and the drive shaft of the motor being fixedly connected to the transmission shaft.

[0009] As a preferred scheme, the driving chamber is internally connected with upper and lower bottom surfaces and is fixedly provided with a guide rod, the guide rod penetrates through the lifting plate and is in sliding fit with the lifting plate.

[0010] As a preferred scheme, the sampling cylinder is fixedly provided with a circular ring-shaped stable base at the bottom edge, the driving chamber is fixedly provided with a lifting plate at the upper end, and a power supply cable is provided through a waterproof ring at the center of the lifting plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a dehydration compression function possesses, through setting up filter plate and separating sample storage room into sample room and drainage room, can effectively remove the moisture in sample, with more and more sediments enter sample room, extrude filter plate upwards, carry out compression dehydration treatment to the sediments through filter plate.

[0013] 2、The utility model discloses a high -efficient collection and convenient advantage of taking out, the design of screw sampler makes the collection process more efficient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the schematic diagram of the utility model.

[0015] Fig. 2 It is the bottom view schematic diagram of the utility model.

[0016] Fig. 3 It is the front view schematic diagram of the utility model.

[0017] Fig. 4 It is the sectional view schematic diagram of the utility model.

[0018] Figure mark name: 1, sampling cylinder;2, sample storage room;3, sampling channel;4, screw sampler;5, driving chamber;6, transmission shaft;7, filter plate;8, electric push rod;9, lifting plate;10, motor;11, guide rod;12, circular ring-shaped stable base;13, lifting plate;14, power supply cable;201, sample room;202, drainage room;203, drainage hole;401, central shaft;402, spiral blade;403, drill bit. DETAILED DESCRIPTION

[0019] In the description of the utility model, it needs to be understood that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center" and the like is the orientation or position relation based on the drawings shown, and is merely for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0020] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "provided with", "mounted", "connected", "connected" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples or drawings are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] A marine sediment sampler, as shown in Figs. 1 to 4 The sampler includes a sampling cylinder 1 and a sample storage chamber 2 connected in sequence from bottom to top, the sample storage chamber 2 is fixedly provided with a driving cavity 5 at the upper end, the sampling cylinder 1 is internally provided with a sampling channel 3, a spiral sampler 4 is gap-fitted in the sampling channel 3, a transmission shaft 6 is fixedly provided at the upper end of the central shaft of the spiral sampler 4, the upper end of the transmission shaft 6 extends into the inside of the driving cavity 5, a driving assembly for driving the transmission shaft 6 to rotate and move up and down is arranged in the inside of the driving cavity 5, a filter plate 7 is fixedly arranged in the inside of the sample storage chamber 2 close to the top surface, the sample storage chamber 2 is divided into a sample chamber 201 located at the lower part and a drainage chamber 202 located at the upper part by the filter plate 7, a plurality of drainage holes 203 are arranged on the side surface of the drainage chamber 202, a circular stable base 12 is fixedly arranged at the bottom edge of the sampling cylinder 1, a lifting plate 13 is fixedly arranged at the upper end of the driving cavity 5, and a power cable 14 is arranged through a waterproof ring at the center of the lifting plate 13.

[0023] The spiral sampler 4 includes a central shaft 401 fixedly connected with the lower end of the transmission shaft 6, a spiral blade 402 is fixedly arranged on the central shaft 401, and a drill bit 403 is fixedly arranged at the lower end of the central shaft 401.

[0024] The driving assembly comprises an electric push rod 8 fixedly arranged on the inner top surface of the driving chamber 5, a lifting plate 9 fixedly arranged on the piston end of the electric push rod 8, a motor 10 fixedly arranged on the bottom of the lifting plate 9, and a driving shaft of the motor 10 is fixedly connected with the transmission shaft 6, and a guide rod 11 is fixedly arranged on the upper and lower bottom surfaces in the driving chamber 5 and passes through the lifting plate 9 and is in sliding fit with the lifting plate 9.

[0025] The working principle of the marine sediment sampler is as follows: the device rotates and moves up and down in the sampling channel 3 through the spiral sampler 4, and collects the sediments into the sample storage chamber 2.

[0026] The working process of the marine sediment sampler is as follows:

[0027] 1. Preparation: the device is connected with an external lowering device (such as a crane or winch) through the lifting plate 13 and is lowered at a suitable position, and the circular stable base 12 ensures the stability of the device.

[0028] 2. Start the driving assembly: the electric push rod 8 is started, and the lifting plate 9 is pushed to move downward under the guidance of the guide rod 11.

[0029] 3. Collect samples: the spiral sampler 4 rotates and moves downward in the sampling channel 3, the drill bit 403 drills into the sediments, and the spiral blade 402 lifts the sediments to the top of the sampling cylinder 1 into the sample storage chamber 2.

[0030] 4. Sample processing: as the sediments continuously enter the sample chamber 201, the pressure generated by the sample accumulation extrudes the filter plate 7, and the filter plate 7 performs compression and dehydration treatment on the sediments.

[0031] 5. Sample removal: the spiral sampler is retracted into the sampling channel 3, and then the motor is started in reverse, driving the transmission shaft 6 to reverse, and the spiral sampler 4 rotates in reverse, taking the sample out of the sample storage chamber 2.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, and any simple modification, equivalent change or the like according to the technical essence of the utility model is within the protection scope of the utility model.

Claims

1. A marine sediment sampler, characterized in that: The sample storage chamber (2) is connected from bottom to top. The upper end of the sample storage chamber (2) is fixedly provided with a drive chamber (5). The sample storage chamber (2) is characterized in that: the sample tube (1) is provided with a sampling channel (3), and a spiral sampler (4) is provided in the sampling channel (3) with a gap fit. The upper end of the central shaft of the spiral sampler (4) is fixedly provided with a drive shaft (6). The upper end of the drive shaft (6) extends into the drive chamber (5). The drive chamber (5) is provided with a drive assembly for driving the drive shaft (6) to rotate and move up and down. The sample storage chamber (2) is fixedly provided with a filter plate (7) near the top surface. The filter plate (7) divides the sample storage chamber (2) into a sample chamber (201) located at the bottom and a drainage chamber (202) located at the top. The side of the drainage chamber (202) is provided with multiple drainage holes (203).

2. A marine sediment sampler according to claim 1, characterized in that: The spiral sampler (4) includes a central shaft (401) fixedly connected to the lower end of the drive shaft (6), a spiral blade (402) fixedly mounted on the central shaft (401), and a drill bit (403) fixedly mounted at the lower end of the central shaft (401).

3. A marine sediment sampler according to claim 1, characterized in that: The drive assembly includes an electric push rod (8) fixedly installed on the top surface inside the drive chamber (5). A lifting plate (9) is fixedly installed at the piston end of the electric push rod (8). A motor (10) is fixedly installed at the bottom of the lifting plate (9). The drive shaft of the motor (10) is fixedly connected to the transmission shaft (6).

4. A marine sediment sampler according to claim 3, characterized in that: The drive chamber (5) is connected to the upper and lower bottom surfaces and is fixedly provided with a guide rod (11). The guide rod (11) passes through the lifting plate (9) and slides with the lifting plate (9).

5. A marine sediment sampler according to claim 1, characterized in that: The sampling tube (1) is fixedly provided with a circular stable base (12) at the bottom edge, and the driving chamber (5) is fixedly provided with a hoisting plate (13) at the upper end. A power supply cable (14) is passed through the center of the hoisting plate (13) through a waterproof ring.

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