A precise positioning surface sediment sampler

Abstract

The present invention relates to the technical field of sampling equipment, and discloses a precise positioning surface sediment sampler, comprising a sampler body (1), at least two groups of sampling mechanisms (2) arranged on the circumference of the sampler body (1), a sample mixing mechanism (3) connected to the sample outlet end of the sampling mechanism (2), a sample storage mechanism (4) for storing samples, and a four-wheel drive mechanism (5) arranged at the bottom of the sampler body (1); at least two groups of extension brackets (11) are extended from the circumference of the sampler body (1), and a moving mechanism (12) is arranged in the extension bracket (11), and each moving mechanism (12) is used to drive a group of sampling mechanisms (2) to move relative to the sampler body (1), thereby realizing multi-point precise positioning sampling; the sampler realizes multi-point precise sampling through the cooperation of the multiple groups of sampling mechanisms and the moving mechanism, and is easy to operate and compact in structure.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling equipment, and in particular to a precise positioning type surface sediment sampler. Background Art

[0002] At present, most underwater surface sediment sampling requires water exploration vessels or diving equipment, and mainly involves drilling and grab sampler sampling. Existing improved technologies, such as the surface sediment collection device with authorization announcement number CN110595821B, connect the sampling box by sliding it in the box body, extend the sampling box to sample the sediment, and protect the sampled sediment with the box cover, thus solving the problem of easy mixing and interference between layers during existing sediment sampling, which affects the accuracy of detection. However, only a single sampling can be completed each time, and the range of sampling points is relatively small. If sediment samples at multiple locations are required, multiple sampling operations are required, which is costly and time-consuming. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a precise positioning surface sediment sampler, which realizes multi-point precise sampling through the cooperation of multiple sets of sampling mechanisms and moving mechanisms. It is not only suitable for surface operating equipment such as exploration ships, but also for underwater operating equipment such as manned submersibles and unmanned submersibles to conduct underwater exploration surface sediment sampling. It is easy to operate and has a compact structure.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A precise positioning surface sediment sampler comprises a sampler body, at least two groups of sampling mechanisms arranged on the circumference of the sampler body, a sample mixing mechanism connected to the sample outlet end of the sampling mechanism, a sample storage mechanism for storing samples and a four-wheel drive mechanism arranged at the bottom of the sampler body; at least two groups of extension brackets extend from the circumference of the sampler body, and a moving mechanism is provided in the extension bracket. Each moving mechanism is used to drive a group of sampling mechanisms to move relative to the direction of the sampler body to achieve precise sampling at multiple points.

[0006] Preferably, the moving mechanism includes a driving slide arranged inside the extension bracket, a driving slider slidingly connected to the driving slide and fixedly connected to the sampling mechanism, and a driving motor. The output end of the driving motor is threadedly connected to the driving slider through a screw rod, and the driving motor drives the driving slider to move along the driving sliding length direction.

[0007] Preferably, the sampling mechanism includes a sampling body, a scraper arranged inside the sampling body and a negative pressure sampler. The sampling body is also provided with a lifting mechanism that drives the scraper to move vertically relative to the sampling point. The scraper scrapes the surface sediment at the sampling point and concentrates it to the sampling port of the negative pressure sampler. The negative pressure sampler transports the sample to the inside of the mixing mechanism.

[0008] Preferably, multiple groups of negative pressure samplers are connected to a vacuum pump or an air pump via an air pipe, and a control valve is provided on the air pipe to control whether the samples taken by the multiple groups of negative pressure samplers enter the mixing mechanism in batches or simultaneously.

[0009] Preferably, the sample mixing mechanism includes a sample mixing chamber, a sample mixing stirrer and a sample mixing motor. The sample mixing motor drives the sample mixing stirrer to rotate to achieve sample mixing.

[0010] Preferably, a sample outlet pipe is provided at the bottom of the sample mixing chamber, and a control valve is provided on the sample outlet pipe to control the sample outlet.

[0011] Preferably, the sample storage mechanism includes a sample storage test tube tray, a sample placement funnel, and a three-axis drive mechanism that drives the sample placement funnel to move between the sample outlet tube and the sample storage test tube. A control valve is also provided on the sample outlet end of the sample placement funnel to control the sample placement.

[0012] Preferably, the three-axis drive mechanism includes an X-axis linear driver that drives the lofting funnel to move along the X-axis direction, a Y-axis linear driver that drives the lofting funnel to move along the Y-axis direction, and a Z-axis linear driver that drives the lofting funnel to move along the Z-axis direction.

[0013] Preferably, the four-wheel drive mechanism includes a chassis fixed to the bottom of the sampler body and four sets of universal drive wheels mounted on the chassis.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The sampler of the present invention realizes multi-point precise sampling through the cooperation of multiple sets of sampling mechanisms and moving mechanisms. It is not only suitable for surface operating equipment such as exploration ships, but also for underwater operating equipment such as manned submersibles and unmanned submersibles to perform underwater exploration and surface sediment sampling. It is easy to operate and has a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this precise positioning surface sediment sampler.

[0017] Figure 2 This is the main view of this precise positioning surface sediment sampler.

[0018] Figure 3 This is a schematic diagram of the structure of the sample storage mechanism in this precise positioning surface sediment sampler.

[0019] In the accompanying drawings: 1-sampler body, 11-extension bracket, 12-moving mechanism, 2-sampling mechanism, 21-sampling body, 22-scraper, 23-negative pressure sampler, 24-lifting mechanism, 25-trachea, 26-vacuum pump or air pump, 3-mixing mechanism, 31-mixing chamber, 32-mixing agitator, 33-mixing motor, 34-sample outlet tube, 4-sample storage mechanism, 41-sample storage test tube tray, 42-sampling funnel, 43-three-axis drive mechanism, 5-four-wheel drive mechanism, 51-chassis, 52-universal drive wheel. DETAILED DESCRIPTION

[0020] Example 1: A preferred embodiment of the present invention provides a precise positioning surface sediment sampler, comprising a sampler body 1, at least two groups of sampling mechanisms 2 arranged on the side of the sampler body 1, a sample mixing mechanism 3 connected to the sample outlet end of the sampling mechanism 2, a sample storage mechanism 4 for storing samples and a four-wheel drive mechanism 5 arranged at the bottom of the sampler body 1; at least two groups of extension brackets 11 are extended on the side of the sampler body 1, and a moving mechanism 12 is provided in the extension bracket 11. Each moving mechanism 12 is used to drive a group of sampling mechanisms 2 to move relative to the sampler body 1 to achieve multi-point precise positioning sampling. It is not only suitable for surface operating equipment such as exploration ships, but also suitable for underwater operating equipment such as manned submersibles and unmanned submersibles to conduct underwater exploration surface sediment sampling. It is easy to operate and has a compact structure.

[0021] The moving mechanism 12 includes a driving slide arranged inside the extension bracket 11, a driving slider and a driving motor that are slidably connected to the driving slide and fixedly connected to the sampling mechanism 2. The output end of the driving motor is threadedly connected to the driving slider through a screw rod. When the driving motor works, it drives the driving slider to move along the driving sliding length direction.

[0022] The sample mixing mechanism 3 includes a sample mixing chamber 31, a sample mixing stirrer 32 and a sample mixing motor 33. The sample mixing motor 33 drives the sample mixing stirrer 32 to rotate to achieve sample mixing. A sample outlet tube 34 is provided at the bottom of the sample mixing chamber 31, and a control valve is provided on the sample outlet tube 34 to control the sample outlet.

[0023] The four-wheel drive mechanism 5 includes a chassis 51 fixed to the bottom of the sampler body 1 and four sets of universal drive wheels 52 installed on the chassis 51. The universal drive wheels 52 drive the sampler to move underwater to the sampling point for multi-position sampling.

[0024] Example 2: A preferred embodiment of the present invention provides a precise positioning surface sediment sampler, which differs from the above embodiment only in that: the sampling mechanism 2 includes a sampling body 21, a scraper 22 and a negative pressure sampler 23 arranged inside the sampling body 21, and the sampling body 21 is also provided with a lifting mechanism 24 that drives the scraper 22 to move vertically relative to the sampling point. The scraper 22 scrapes the surface sediment at the sampling point and concentrates it to the sampling port of the negative pressure sampler 23. The negative pressure sampler 23 samples and transports it to the inside of the mixing mechanism 3; multiple groups of negative pressure samples The sampler 23 is connected to a vacuum pump or an air extraction pump 26 through an air pipe 25, and the vacuum pump or the air extraction pump 26 can be selected according to actual needs; a control valve is provided on the air pipe 25 to control whether the samples taken by the multiple groups of negative pressure samplers 23 enter the mixing mechanism 3 in batches or enter the mixing mechanism 3 at the same time. The samples taken by the mixing mechanism 3 at the same time can be mixed at multiple points, and samples at a small area sampling position can be detected at one time, while samples taken by the mixing mechanism 3 in batches can be detected at the sampling position in batches. The specific selection and switching can be made according to actual work needs, and the adaptability is stronger.

[0025] Example 3: A preferred embodiment of the present invention provides a precise positioning surface sediment sampler, which differs from the above embodiments only in that: the sample storage mechanism 4 includes a sample storage test tube tray 41, a sample placement funnel 42, and a three-axis drive mechanism 43 that drives the sample placement funnel 42 to move between the sample outlet tube 34 and the sample storage test tube. A control valve is also provided on the sample outlet end of the sample placement funnel 42 to control the sample placement;

[0026] The three-axis drive mechanism 43 includes an X-axis linear driver that drives the sample lofting funnel 42 to move along the X-axis direction, a Y-axis linear driver that drives the sample lofting funnel 42 to move along the Y-axis direction, and a Z-axis linear driver that drives the sample lofting funnel 42 to move along the Z-axis direction; the X-axis linear driver, the Y-axis linear driver, and the Z-axis linear driver can adopt linear drive devices, and the linear drive devices include a slide along the X-axis, Y-axis, or Z-axis direction, a slider slidably connected to the slide, and a linear drive motor. The output end of the linear drive motor is threadedly connected to the slider through a screw rod. When the linear drive motor works, it drives the slider to move along the sliding length direction to realize the movement of the sample lofting funnel 42 along the X-axis, Y-axis, or Z-axis direction, and realizes the sample receiving or transfer from the sample outlet tube 34 to the corresponding sample storage tube.

Claims

1. A precise positioning surface sediment sampler, characterized in that: The sampler comprises a sampler body (1), at least two sets of sampling mechanisms (2) arranged on the periphery of the sampler body (1), a sample mixing mechanism (3) connected to the sample outlet end of the sampling mechanism (2), a sample storage mechanism (4) for storing samples, and a four-wheel drive mechanism (5) arranged at the bottom of the sampler body (1); At least two groups of extension brackets (11) are extended from the periphery of the sampler body (1), and a moving mechanism (12) is provided in the extension bracket (11). Each moving mechanism (12) is used to drive a group of sampling mechanisms (2) to move relative to the sampler body (1), thereby realizing multi-point precise positioning sampling; The moving mechanism (12) includes a driving slideway provided inside the extension bracket (11), a driving slider slidably connected to the driving slideway and fixedly connected to the sampling mechanism (2), and a driving motor. The output end of the driving motor is threadedly connected to the driving slider via a screw rod. When the driving motor is working, the driving slider is driven to move along the length direction of the driving slider. The sampling mechanism (2) includes a sampling body (21), a scraper (22) and a negative pressure sampler (23) arranged inside the sampling body (21). The sampling body (21) is also provided with a lifting mechanism (24) for driving the scraper (22) to move vertically relative to the sampling point. The scraper (22) scrapes the surface sediment at the sampling point and concentrates it to the sampling port of the negative pressure sampler (23). The negative pressure sampler (23) takes the sample and transports it to the inside of the mixing mechanism (3). The sample mixing mechanism (3) includes a sample mixing chamber (31), a sample mixing stirrer (32) and a sample mixing motor (33). The sample mixing motor (33) drives the sample mixing stirrer (32) to rotate to achieve sample mixing. The sample storage mechanism (4) includes a sample storage test tube tray (41), a sample placing funnel (42), and a three-axis driving mechanism (43) for driving the sample placing funnel (42) to move between the sample outlet tube (34) and the sample storage test tube. A control valve is also provided on the sample outlet end of the sample placing funnel (42) to control the placing.

2. A precise positioning surface sediment sampler according to claim 1, characterized in that: The multiple groups of negative pressure samplers (23) are connected to a vacuum pump or an air extraction pump (26) via an air pipe (25). A control valve is provided on the air pipe (25) to control whether the samples taken by the multiple groups of negative pressure samplers (23) enter the sample mixing mechanism (3) in batches or simultaneously.

3. A precise positioning surface sediment sampler according to claim 2, characterized in that: A sample outlet pipe (34) is provided at the bottom of the sample mixing chamber (31), and a control valve is provided on the sample outlet pipe (34) to control the sample outlet.

4. A precise positioning surface sediment sampler according to claim 3, characterized in that: The three-axis drive mechanism (43) includes an X-axis linear driver that drives the lofting funnel (42) to move along the X-axis direction, a Y-axis linear driver that drives the lofting funnel (42) to move along the Y-axis direction, and a Z-axis linear driver that drives the lofting funnel (42) to move along the Z-axis direction.

5. The precise positioning surface sediment sampler according to claim 1, characterized in that: The four-wheel drive mechanism (5) comprises a chassis (51) fixed to the bottom of the sampler body (1) and four sets of universal drive wheels (52) mounted on the chassis (51).

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