A deep-sea sediment sampling device

Abstract

The utility model discloses a kind of deep-sea sediments sampling devices, it is related to sampling device field, including base disc, the first cylinder is fixed in base disc bottom end, the box is fixed in the first cylinder bottom end, the sampling barrel is fixed in the box bottom end, telescopic setting is collected in the sampling barrel inside barrel, the bottom end of the collected barrel is set as tip, the sampling barrel outside is provided with one-way valve, after overall device drops in seabed, electric push rod can be stretched downwards, so that fixed cone can be inserted into sampling area, supporting both sides of sampling barrel, improve the stability when sampling of sampling barrel, while the collecting barrel inside sampling barrel, with the stretching of second cylinder, towards seabed sediment inside stretch, the design of tip, it is convenient for the bottom end of collected barrel to stretch into sediment inside, after second cylinder retraction, it can drive the sediment collected by collected barrel to move upwards, retract to the inside of sampling barrel, complete collection.

Description

Technical Field

[0001] This utility model relates to the field of sampling devices, and in particular to a deep-sea sediment sampling device. Background Technology

[0002] The ocean is a treasure trove of mineral resources. Research on marine sediments and their soil mechanics properties provides crucial scientific evidence for early-stage marine development projects, such as the laying of submarine cables and oil pipelines, and the design and construction of oil drilling platforms. It also provides important data on the formation and accumulation conditions of marine sedimentary minerals, including petroleum. Research on modern deltaic and carbonate sedimentary facies is receiving increasing attention. Marine sediments are an excellent record of geological history. For example, a patent entitled "A High-Frequency Vibration Sampling Device with Visual Function" (patent application number: CN202222543233.9) discloses a high-frequency vibration sampling device with visual function. Through the improved design of the connection structure of the vibration sampler and the fixing structure of the underwater photography element, it improves the stability of the sampling site and the dynamic image capture of the surrounding environment while realizing the sampling of the target with visual function and ensuring the effective use of the sampler in complex underwater environments. However, there is no stabilizing device around the sampling tube. In addition, the vibration effect of the vibration sampler can easily cause the sampling tube to become unstable, causing the surrounding sediment to float and affecting the sampling.

[0003] Therefore, it is necessary to propose a deep-sea sediment sampling device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a deep-sea sediment sampling device to solve the problem that the lack of a stabilizing device around the sampling tube, coupled with the vibration effect of the vibrating sampler, can easily cause instability in the sampling tube, resulting in the surrounding sediments floating and affecting the sampling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deep-sea sediment sampling device, comprising a base plate, a first cylinder fixed at the bottom of the base plate, a box fixed at the bottom of the first cylinder, a sampling tube fixed at the bottom of the box, a collection tube telescopically arranged inside the sampling tube, the bottom end of the collection tube being a pointed tip, and a one-way valve arranged on the outside of the sampling tube. A support plate is fixed to the bottom outer side of the sampling tube, and auxiliary support mechanisms are provided on both sides of the sampling tube. The auxiliary support mechanisms include electric push rods, and a fixed cone is provided at the bottom of the electric push rods.

[0006] Preferably, the sampling cylinder has an inner cavity, and a second cylinder is fixed at the top of the inner cavity, with the telescopic end of the bottom of the second cylinder fixed to the middle of the sampling cylinder; The outer side of the sampling tube is configured as a filter screen.

[0007] Preferably, a connecting rod is fixed to the bottom end of the base plate, a base plate is fixed to the bottom end of the connecting rod, the electric push rod is fixedly connected to the bottom end of the base plate, and the middle part of the base plate is fixedly connected to the outer side of the sampling cylinder.

[0008] Preferably, the chassis is fixedly connected to a lighting lamp and a camera.

[0009] Preferably, a lifting ring is fixedly connected to the top of the base plate.

[0010] Preferably, the one-way valve is in communication with the interior of the cavity.

[0011] Preferably, the enclosure is equipped with a built-in power supply and a configuration block.

[0012] The technical effects and advantages of this utility model are as follows: 1. After the entire device is lowered to the seabed, the electric push rod can extend downwards, allowing the fixed cone to be inserted into the sampling area to support both sides of the sampling tube and improve the stability of the sampling tube during sampling. At the same time, the collection tube inside the sampling tube extends into the seabed sediment as the second cylinder extends. The pointed design makes it easy for the bottom of the collection tube to extend into the sediment. When the second cylinder retracts, it can drive the sediment collected by the collection tube to move upwards and retract into the sampling tube to complete the collection.

[0013] 2. When the collection cylinder retracts, the one-way valve is activated. As the collection cylinder moves upward, excess seawater can be discharged from the one-way valve, avoiding affecting the collection of sediments. This effectively prevents excess seawater and impurities from flowing in the inner cavity during the sampling process, causing sediment movement and ensuring the cleanliness of the sampling environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the deep-sea sediment sampling device of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the sampling cylinder of this utility model.

[0016] In the diagram: 1. Base plate; 2. Lifting ring; 3. First cylinder; 4. Box body; 5. Camera; 6. Sampling cylinder; 7. Electric push rod; 8. Lighting lamp; 9. One-way valve; 10. Support plate; 11. Tip; 12. Second cylinder; 13. Inner cavity; 14. Collection cylinder; 15. Fixed cone; 16. Connecting rod; 17. Chassis. Detailed Implementation

[0017] This utility model provides, for example Figures 1-2The deep-sea sediment sampling device shown includes a base plate 1, a first cylinder 3 fixed to the bottom of the base plate 1, a housing 4 fixed to the bottom of the first cylinder 3, and a sampling tube 6 fixed to the bottom of the housing 4. A collection tube 14 is telescopically installed inside the sampling tube 6. The first cylinder 3 adjusts the height of the housing 4 and the sampling tube 6 below it through precise telescopic movements. This adjustment function allows the device to adjust the initial position of the sampling tube 6 according to different seabed topography and sediment conditions, creating favorable conditions for subsequent sampling work.

[0018] The bottom end of the collection cylinder 14 is set as a pointed tip 11. A one-way valve 9 is provided on the outside of the sampling cylinder 6. A support plate 10 is fixed on the bottom of the outside of the sampling cylinder 6. Auxiliary support mechanisms are provided on both sides of the sampling cylinder 6. The auxiliary support mechanisms include electric push rods 7. A fixed cone 15 is provided at the bottom of the electric push rods 7.

[0019] The sampling cylinder 6 has an inner cavity 13 inside, and a second cylinder 12 is fixed at the top of the inner cavity 13. The telescopic end of the bottom of the second cylinder 12 is fixed in the middle of the sampling cylinder 6. The outer side of the sampling cylinder 6 is designed as a filter screen.

[0020] A connecting rod 16 is fixed to the bottom of the base plate 1, and a base plate 17 is fixed to the bottom of the connecting rod 16. An electric push rod 7 is fixedly connected to the bottom of the base plate 17, and the middle part of the base plate 17 is fixedly connected to the outside of the sampling cylinder 6.

[0021] In actual operation of this utility model, after the entire device is lowered to the seabed, the electric push rod 7 can extend downwards, allowing the fixed cone 15 to be inserted into the sampling area to support both sides of the sampling tube 6, thereby improving the stability of the sampling tube 6 during sampling. At the same time, the collection tube 14 inside the sampling tube 6 extends into the seabed sediment as the second cylinder 12 extends. The design of the tip 11 facilitates the bottom end of the collection tube 14 to extend into the sediment. When the second cylinder 12 retracts, it can drive the sediment collected by the collection tube 14 to move upwards and retract into the sampling tube 6, completing the collection.

[0022] When the collection cylinder 14 retracts, the one-way valve 9 activates. As the collection cylinder 14 moves upward, excess seawater can be discharged from the one-way valve 9, preventing it from affecting the collection of sediment. This effectively prevents external seawater and impurities from flowing back into the inner cavity 13 during the sampling process, ensuring a clean sampling environment.

[0023] The chassis 17 is fixedly connected to a lighting lamp 8 and a camera 5. The lighting lamp 8 fixed on the chassis 17 can provide sufficient illumination in the dark deep-sea environment, and together with the camera 5, it can acquire real-time image information of the seabed sampling area, making it easier for operators to observe and judge the situation of the sampling point on the surface platform.

[0024] A lifting ring 2 is fixedly connected to the top of the base plate 1. It is made of forged titanium alloy with a seawater corrosion-resistant coating. The lifting ring 2 facilitates connection to the ship's lifting equipment, enabling the deployment and retrieval of the device.

[0025] The one-way valve 9 is connected to the interior of the inner cavity 13. The housing 4 has a built-in power supply and a configuration block.

[0026] The power source can provide energy for the electric actuator 7, the lighting 8, the camera 5, and other electrical components.

Claims

1. A deep-sea sediment sampling device, comprising a base plate (1), characterized in that: The base plate (1) is fixed with a first cylinder (3) at the bottom end, the first cylinder (3) is fixed with a box (4) at the bottom end, the box (4) is fixed with a sampling tube (6) at the bottom end, the sampling tube (6) is internally provided with a collection tube (14) which is telescopically arranged, the bottom end of the collection tube (14) is set with a tip (11), and a one-way valve (9) is provided on the outside of the sampling tube (6). A support plate (10) is fixed to the bottom of the outer side of the sampling tube (6). An auxiliary support mechanism is provided on both sides of the sampling tube (6). The auxiliary support mechanism includes an electric push rod (7). A fixed cone (15) is provided at the bottom of the electric push rod (7).

2. The deep-sea sediment sampling device according to claim 1, characterized in that: The sampling cylinder (6) has an inner cavity (13) inside, and a second cylinder (12) is fixed at the top of the inner cavity (13). The telescopic end of the bottom of the second cylinder (12) is fixed to the middle of the sampling cylinder (6). The outer side of the sampling tube (6) is configured as a filter screen.

3. The deep-sea sediment sampling device according to claim 1, characterized in that: The base plate (1) is fixed with a connecting rod (16) at the bottom end, and the connecting rod (16) is fixed with a base plate (17) at the bottom end. The electric push rod (7) is fixedly connected to the bottom end of the base plate (17), and the middle part of the base plate (17) is fixedly connected to the outside of the sampling cylinder (6).

4. The deep-sea sediment sampling device according to claim 3, characterized in that: The chassis (17) is fixedly connected to a lighting lamp (8) and a camera (5).

5. The deep-sea sediment sampling device according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a lifting ring (2).

6. A deep-sea sediment sampling device according to claim 2, characterized in that: The one-way valve (9) and the inner cavity (13) are connected.

7. A deep-sea sediment sampling device according to claim 1, characterized in that: The enclosure (4) is equipped with a built-in power supply and a configuration block.

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