CN212159145U - Mechanical hand-held low-disturbance sampler for submarine sediments - Google Patents
Mechanical hand-held low-disturbance sampler for submarine sediments Download PDFInfo
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- CN212159145U CN212159145U CN202021079320.8U CN202021079320U CN212159145U CN 212159145 U CN212159145 U CN 212159145U CN 202021079320 U CN202021079320 U CN 202021079320U CN 212159145 U CN212159145 U CN 212159145U
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Abstract
The utility model discloses a mechanical hand-held type low disturbance sampler for submarine sediments, which comprises an annular tool bit, a plurality of leaf-shaped sealing plates, a sampling tube, a piston and a handle; the annular cutter head is fixedly arranged at the lower end of the sampling tube, the piston is arranged in the sampling tube, a plurality of water drainage holes and a handle rod hole are formed in a top plate of the sampling tube, and the lower end of a handle rod of the handle penetrates through the handle rod hole to be connected with the upper end of the piston; the handle rod is provided with an annular flange, and the diameter of the annular flange is not less than that of a circumscribed circle of the handle rod hole; the blade-shaped sealing plates are positioned in the annular tool bit and hinged with the annular tool bit, the blade-shaped sealing plates are positioned on the same section, and the blade-shaped sealing plates can seal an inner hole of the annular tool bit; a plurality of water drainage holes II are arranged on the piston. The utility model discloses simple structure, compact small, the manipulator operation of being convenient for, the utility model discloses can effectively improve sample success rate and sample rate, reduce the disturbance to the sample.
Description
Technical Field
The utility model relates to a low disturbance sampler of mechanical hand-held type submarine sediment.
Background
The acquisition of high-quality submarine sediment samples is the premise and foundation for carrying out scientific research on marine geology and environment, and the geological sampling of submarine sediments by using submarine sediment sampling equipment is an important technical means for acquiring submarine sediment samples. With the development and wide application of marine equipment such as a flood dragon manned submersible, a deep sea warrior manned submersible, a sea horse ROV and the like in submarine scientific investigation, the grabbing operation tool is convenient to carry out geological sampling on submarine sediments by utilizing a manipulator arranged on the submersible or the ROV. However, the current seafloor sediment sampler associated with the submersible or ROV described above is either completely open at the bottom or petal bit configuration at the bottom. For the seabed sediment sampler with the bottom of a complete open structure, although the sample is slightly disturbed when entering the sampling tube, when the sampling tube is pulled out of the seabed sediment by the driving manipulator, the sediment sample in the sampling tube is easy to slide off the sampling tube, so that the sampling success rate and the sampling rate are reduced; for the seabed sediment sampler with the petal cutter head at the bottom, although the problem that the sample slides from the sampling tube can be solved, the sample is extruded by the petal cutter head in the process of entering the sampling tube, so that the sample is disturbed, and the quality of the sample is influenced. Therefore, in order to obtain high quality seafloor sediment samples. The development of a mechanical hand-held low-disturbance sampler which can be matched with a submersible or an ROV manipulator for use and has a simple structure and convenient operation is needed.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a simple structure, compactness, convenient operation can effectively improve sample success rate and sample rate, reduces the low disturbance sampler of mechanical hand-held type submarine sediment of the disturbance to the sample.
The utility model adopts the technical proposal that: a mechanical hand-held low-disturbance sampler for submarine sediments comprises an annular tool bit, a plurality of leaf-shaped sealing plates, a sampling tube, a piston and a handle; the annular cutter head is fixedly arranged at the lower end of the sampling tube, the piston is arranged in the sampling tube, a plurality of water drainage holes and a handle rod hole are formed in a top plate of the sampling tube, and the lower end of a handle rod of the handle penetrates through the handle rod hole to be connected with the upper end of the piston; the handle rod is provided with an annular flange, and the diameter of the annular flange is not less than that of a circumscribed circle of the handle rod hole; the blade-shaped sealing plates are positioned in the annular tool bit and hinged with the annular tool bit, the blade-shaped sealing plates are positioned on the same section, and the blade-shaped sealing plates can seal an inner hole of the annular tool bit; a plurality of water drainage holes II are arranged on the piston.
In the mechanical hand-held low-disturbance sampler for the submarine sediments, a spring sleeve is arranged on a top plate of the sampling tube, and the handle rod hole is positioned in the spring sleeve; the handle rod is provided with a spring, and two ends of the spring are respectively connected with the annular flange and the top plate of the sampling tube.
In the mechanical hand-held type low-disturbance sampler for the seabed sediment, the cross section of the handle rod is square, and the hole of the handle rod is a square hole.
In the mechanical hand-held low-disturbance sampler for the submarine sediments, the leaf-shaped sealing plate comprises a sealing plate, a connecting plate and a hinge lug, the sealing plate is a conical plate, the connecting plate is arranged at the back of the sealing plate, and the hinge lug is arranged at the end part of the connecting plate; the upper part of the annular tool bit is inserted into an inner hole at the lower end of the sampling tube, the annular tool bit is in clearance fit with the sampling tube, a plurality of waist-shaped holes I are formed in the upper part of the side wall of the annular tool bit, a plurality of waist-shaped holes II are formed in the side wall of the lower end of the sampling tube, and the waist-shaped holes II correspond to the waist-shaped holes I one to one; the hinge lugs are hinged with the corresponding waist-shaped holes II through hinge pins; the two ends of the hinge lug are respectively arc surfaces, the top of the waist-shaped hole I is an inclined surface, and one end of the connecting plate, which is back to the hinge lug, is an inclined surface matched with the inclined surface at the top of the waist-shaped hole I.
In the mechanical hand-held type low-disturbance sampler for the submarine sediments, a rubber pad is fixed at the upper end of the piston, and a sealing ring is arranged between the piston and the sampling tube; a plurality of water drainage holes II and water drainage holes III are respectively arranged on the piston and the rubber pad, and the water drainage holes II and the corresponding water drainage holes III are coaxial; the water outlet II is staggered with the water outlet on the top plate of the sampling tube.
In the mechanical hand-held low-disturbance sampler for the seabed sediment, the lower part of the annular cutter head is of a conical structure with a large upper part and a small lower part; the diameter of the upper end of the conical structure is larger than that of the upper part of the annular cutter head.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, compactness, small, the manipulator operation of being convenient for, the utility model discloses can effectively improve sample success rate and sample rate, reduce the disturbance to the sample. And the utility model discloses still can require the sampling tube of the different degree of depth of preparation, aperture according to the sample of difference, or the mode adjustment sampling degree of depth through the sampling tube concatenation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view at I in fig. 1.
Fig. 3 is an enlarged view of fig. 1 at ii.
Fig. 4 is a cross-sectional view of the present invention.
Fig. 5 is an enlarged view at iii in fig. 4.
Fig. 6 is an enlarged view of the point iv in fig. 4.
Fig. 7 is a schematic structural view of the leaf-shaped sealing plate of the present invention.
Fig. 8 is a schematic view of the piston structure of the present invention.
Fig. 9 is a schematic view of the structure of the annular cutter head of the present invention.
Fig. 10 is a structural view of the leaf seal plate of the present invention in a fully open state.
Fig. 11 is a structural view of the leaf seal plate of the present invention in a closed state.
In the figure: 1-handle, 2-annular flange, 3-spring, 4-spring sleeve, 5-top plate, 501-top cover plate drainage hole, 6-rubber pad, 7-sealing ring, 8-piston, 801-drainage hole II, 9-sampling tube, 901-kidney-shaped hole I, 10-leaf-shaped sealing plate, 1001-connecting plate, 1002-hinge lug, 1003-sealing plate, 11-annular cutter head and 1101-kidney-shaped hole II.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-6, the present invention comprises a ring-shaped tool bit 11, a plurality of leaf-shaped sealing plates 10, a sampling tube 9, a piston 8 and a T-shaped handle 1. The annular cutter head 11 is fixedly arranged at the lower end of the sampling tube 9, the piston 8 is arranged in the sampling tube 9, the upper end of the piston 8 is fixedly provided with a rubber pad 6, and a sealing ring 7 is arranged between the piston 8 and the sampling tube 9. The piston 8 and the rubber pad 6 are respectively provided with five water drainage holes II 801 and water drainage holes III, and the water drainage holes II 801 and the corresponding water drainage holes III are coaxial.
The top plate 5 of the sampling tube 9 is provided with a plurality of water drainage holes 501, a spring sleeve 4 and a handle rod hole, and the water drainage holes II 801 and the water drainage holes 501 are staggered. The spring sleeve 4 is positioned in the center of the top plate 5, the handle rod hole is positioned in the center of the spring sleeve 4, and the handle rod hole is a square hole. The cross section of a handle rod of the handle is square; the lower end of the handle rod passes through the handle rod hole and is connected with the upper end of the piston 8. The handle rod is provided with an annular flange 2, and the diameter of the annular flange 2 is not less than that of a circumscribed circle of the handle rod hole. The handle rod is sleeved with a spring 3, the spring is positioned in a spring sleeve 4, and two ends of the spring are respectively connected with the top plate 5 and the annular flange 2.
As shown in fig. 4 and 7, the leaf-shaped sealing plate includes a sealing plate 1003, a connecting plate 1001 and a hinge lug 1002, the sealing plate 1003 is a conical plate, the connecting plate 1001 is arranged at the back of the sealing plate 1003, and the hinge lug 1002 is arranged at the end of the connecting plate 1001. The upper part of the annular tool bit 11 is inserted into an inner hole at the lower end of the sampling tube 9, and the annular tool bit 11 is in clearance fit with the sampling tube 9, so that the annular tool bit 11 can naturally slide downwards under the action of gravity. The upper part of the side wall of the annular cutter head 11 is provided with a plurality of waist-shaped holes I1101, the side wall of the lower end of the sampling tube 9 is provided with a plurality of waist-shaped holes II 901, and the waist-shaped holes II 901 correspond to the waist-shaped holes I1101 one to one. The hinge lug 1002 is hinged with the corresponding waist-shaped hole II 901 through a pin 1004. The two ends of the hinge lug 1002 are both arc surfaces, the top of the waist-shaped hole I1101 is an inclined surface, one end of the connecting plate 1001, which is back to the hinge lug 1002, is an inclined surface matched with the inclined surface at the top of the waist-shaped hole I, so that the sealing plate 1003 falls down when the sampling tube 9 is conveniently lifted. The plurality of seal plates 1003 are split into conical surfaces when they fall down, and seal the inner hole of the ring bit, as shown in fig. 11. The lower part of the annular cutter head 11 is of a conical structure with a large upper part and a small lower part, and the diameter of the upper end of the conical structure is larger than that of the upper part of the annular cutter head 11 to form a positioning step surface.
In the process of pressing down the sampler, the lower end face of the sampling tube 9 gradually abuts against a positioning step face in the middle of the annular tool bit 11, the arc face of the connecting plate 1001 interacts with the lower wall of the kidney-shaped hole I1101 to gradually lift the leaf-shaped sealing plate 10 until the leaf-shaped sealing plate 10 is completely opened, and the inclined end face of the connecting plate 1001 is attached to the inclined upper wall of the kidney-shaped hole II 1101 to facilitate the sample to enter the sampling tube 9; as shown in fig. 10. After the sampling is finished, along with the upward pulling of the sampling tube 9, the root part of the connecting plate 1001 moves upwards, under the action of gravity, the annular cutter head 11 moves downwards relative to the sampling tube 9, the inclined surface of the top of the waist-shaped hole I1101 presses the inclined surface of the connecting plate 1001, so that the leaf-shaped sealing plate 10 is gradually closed until the arc surface of the connecting plate is completely contacted with the lower end surface of the waist-shaped hole I of the sampling tube, the leaf-shaped sealing plate 10 is completely closed, the sampling tube 9 is cut off and dragged, and the sampling is finished once.
During sampling, the piston 8 is pressed down to be separated from the top plate 5 of the sampling tube 9, and seawater entering the sampling tube 9 from the bottom is discharged through the piston water outlet 801 and the top cover plate water outlet 501. After the sampling is finished, under the action of the spring 3, the piston 8 moves upwards to be tightly attached to the top plate 5 of the sampling tube 9, and under the action of the rubber pad 6, the upper part of the sampling tube 9 forms a vacuum environment, so that the leakage of the sample in the lifting sampling process is reduced.
The utility model discloses during the use, operation process as follows:
1. will the utility model discloses be fixed in the submersible assigned position, dive to the assigned position after along with the submersible, hold sampler handle 1 by the submersible manipulator with, utilize the flexibility of submersible manipulator, adjust to suitable sample angle.
2. After the manipulator is put down until the annular cutter head 11 is propped against the seabed, the spring 3 is gradually compressed under the pressure action of the handle 1, so that the piston 8 is separated from the top cover plate of the sampling tube 9, and a water drainage passage is formed by a water drainage hole II 801 on the piston 8 and a water drainage hole 501 on the top plate; meanwhile, under the action of the seabed, the annular cutter head 11 moves upwards relative to the sampling tube 9, and the connecting plate 1001 interacts with the lower wall of the kidney-shaped hole II 1101, so that the leaf-shaped sealing plate 10 is gradually lifted until the leaf-shaped sealing plate 10 is completely opened, as shown in fig. 10. With the downward movement of the sampler, the sample to be sampled enters the sampling tube 9, and simultaneously, the seawater at the upper part is extruded and discharged out of the sampling tube 9 through two rows of staggered drainage holes.
3. After the preset sampling depth is reached, the manipulator clamping handle 1 is pulled upwards, and simultaneously, under the action of the spring 3, the piston 8 moves upwards relative to the sampling tube 9 until the piston is tightly attached to a top cover plate of the sampling tube 9, the alternate piston drainage holes 801 and the top cover plate drainage holes 501 are tightly attached, a vacuum environment is formed at the upper part of the sampling tube 9, and the leakage of samples in the process of lifting the sampler is reduced; meanwhile, under the action of gravity, the annular cutter head 11 moves downwards relative to the sampling tube 9, the inclined upper wall of the waist-shaped hole II 1101 forces the connecting plate 1001 attached to the waist-shaped hole II to incline downwards, the leaf-shaped sealing plate 10 is gradually closed until the leaf-shaped sealing plate 10 is completely closed (as shown in fig. 11), and when the redundant sample is cut off, the sample in the sampling tube 9 is dragged upwards to finish one-time sampling.
4. After the sampler with the sample is placed at the designated position, the mechanical arm can replace other samplers and circularly carry out the step 1-3 to realize repeated sampling of single water drainage.
Claims (6)
1. A mechanical hand-held type low disturbance sampler for submarine sediments is characterized in that: comprises an annular tool bit, a plurality of leaf-shaped sealing plates, a sampling tube, a piston and a handle; the annular cutter head is fixedly arranged at the lower end of the sampling tube, the piston is arranged in the sampling tube, a plurality of water drainage holes and a handle rod hole are formed in a top plate of the sampling tube, and the lower end of a handle rod of the handle penetrates through the handle rod hole to be connected with the upper end of the piston; the handle rod is provided with an annular flange, and the diameter of the annular flange is not less than that of a circumscribed circle of the handle rod hole; the blade-shaped sealing plates are positioned in the annular tool bit and hinged with the annular tool bit, the blade-shaped sealing plates are positioned on the same section, and the blade-shaped sealing plates can seal an inner hole of the annular tool bit; a plurality of water drainage holes II are arranged on the piston.
2. The mechanical hand-held seafloor sediment low disturbance sampler of claim 1, wherein: a spring sleeve is arranged on a top plate of the sampling tube, and the handle rod hole is positioned in the spring sleeve; the handle rod is provided with a spring, and two ends of the spring are respectively connected with the annular flange and the top plate of the sampling tube.
3. The mechanical hand-held seafloor sediment low disturbance sampler of claim 2, wherein: the cross section of the handle rod is square, and the handle rod hole is a square hole.
4. The mechanical hand-held seafloor sediment low disturbance sampler of claim 1, wherein: the leaf-shaped sealing plate comprises a sealing plate, a connecting plate and a hinge lug, the sealing plate is a conical plate, the connecting plate is arranged at the back of the sealing plate, and the hinge lug is arranged at the end part of the connecting plate; the upper part of the annular tool bit is inserted into an inner hole at the lower end of the sampling tube, the annular tool bit is in clearance fit with the sampling tube, a plurality of waist-shaped holes I are formed in the upper part of the side wall of the annular tool bit, a plurality of waist-shaped holes II are formed in the side wall of the lower end of the sampling tube, and the waist-shaped holes II correspond to the waist-shaped holes I one to one; the hinge lugs are hinged with the corresponding waist-shaped holes II through hinge pins; the two ends of the hinge lug are respectively arc surfaces, the top of the waist-shaped hole I is an inclined surface, and one end of the connecting plate, which is back to the hinge lug, is an inclined surface matched with the inclined surface at the top of the waist-shaped hole I.
5. The mechanical hand-held seafloor sediment low disturbance sampler of claim 1, wherein: a rubber pad is fixed at the upper end of the piston, and a sealing ring is arranged between the piston and the sampling tube; a plurality of water drainage holes II and water drainage holes III are respectively arranged on the piston and the rubber pad, and the water drainage holes II and the corresponding water drainage holes III are coaxial; the water outlet II is staggered with the water outlet on the top plate of the sampling tube.
6. The mechanical hand-held seafloor sediment low disturbance sampler of claim 1, wherein: the lower part of the annular cutter head is of a conical structure with a large upper part and a small lower part; the diameter of the upper end of the conical structure is larger than that of the upper part of the annular cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079320.8U CN212159145U (en) | 2020-06-12 | 2020-06-12 | Mechanical hand-held low-disturbance sampler for submarine sediments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079320.8U CN212159145U (en) | 2020-06-12 | 2020-06-12 | Mechanical hand-held low-disturbance sampler for submarine sediments |
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| CN212159145U true CN212159145U (en) | 2020-12-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184415A (en) * | 2021-11-25 | 2022-03-15 | 浙江省海洋水产研究所 | Handheld sampling device for marine shallow sediment |
| WO2023221811A1 (en) * | 2023-01-04 | 2023-11-23 | 中国科学院南海海洋研究所 | Novel disturbance-free marine sediment sampling tool |
-
2020
- 2020-06-12 CN CN202021079320.8U patent/CN212159145U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184415A (en) * | 2021-11-25 | 2022-03-15 | 浙江省海洋水产研究所 | Handheld sampling device for marine shallow sediment |
| CN114184415B (en) * | 2021-11-25 | 2024-03-15 | 浙江省海洋水产研究所 | Handheld ocean shallow sediment sampling device |
| WO2023221811A1 (en) * | 2023-01-04 | 2023-11-23 | 中国科学院南海海洋研究所 | Novel disturbance-free marine sediment sampling tool |
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