CN212964116U - Columnar sampler for submarine sediment and sampler carried on in-situ measurement system - Google Patents
Columnar sampler for submarine sediment and sampler carried on in-situ measurement system Download PDFInfo
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- CN212964116U CN212964116U CN202021682977.3U CN202021682977U CN212964116U CN 212964116 U CN212964116 U CN 212964116U CN 202021682977 U CN202021682977 U CN 202021682977U CN 212964116 U CN212964116 U CN 212964116U
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Abstract
The columnar sampler for the sediment at the sea bottom and the sampler carried on the in-situ measuring system comprise a lining pipe and an outer pipe; the sample cutting head comprises a sleeve, a rotating shaft, an L-shaped limiting frame, a petal type baffle and a tool bit; the side surface of the rear section of the cutter head is provided with a plurality of rectangular holes, the front end of the sleeve is sleeved on the rear section of the cutter head, and the rear end of the sleeve is sleeved on the outer pipe; two limiting tables are arranged in the sleeve and respectively limit the inner liner tube and the cutter head; the outer wall of the front section of the sleeve is provided with a plurality of rectangular windows, and the rectangular windows are provided with L-shaped limiting frames with petal-type retaining pieces through rotating shafts; after the rear end of the cutter head is inserted into the sleeve, the L-shaped limiting frame is simultaneously inserted into the rectangular window of the sleeve and the rectangular hole of the cutter head. The utility model has simple structure, is firm and durable, the connecting flange at the rear end of the outer pipe can realize the sediment sampling by means of the injection driving force of the in-situ measurement system, does not need extra balance weight, and the sampling and the in-situ measurement are carried out synchronously, thereby improving the working efficiency; the sampling position is consistent with the acoustic characteristic in-situ measurement position, and later-stage test data analysis is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the submarine sediment sample, specifically speaking, the utility model relates to a submarine sediment column sampler and carry on normal position measurement system's sampler thereof.
Background
The acoustic characteristics (sound velocity and sound attenuation coefficient) of the submarine sediments are closely related to the physical properties (such as density, porosity, average particle size and the like) of the sediments, the establishment of the relationship between the acoustic characteristics and the acoustic characteristics is important content of submarine sediment acoustic research, and the method is also important to be applied to the fields of marine sound field prediction, marine engineering exploration, submarine resource exploration and the like. The collection of samples of seafloor sediments with a sampler and testing in the laboratory is a conventional way to obtain the acoustical and physical properties of sediments. In order to eliminate the disturbance of the sampling process to the sediment and the influence of the change of the environment where the sample is located on the test result, various in-situ sediment acoustic characteristic measurement technologies have been developed in recent years. In principle, these in-situ measurement techniques can be divided into two types, a vertical measurement and a lateral measurement. The vertical measurement method is to fix an acoustic sensor array on the outer wall of a column sampler, penetrate into the sediment through the sampler, estimate the average value of the acoustic characteristics of the sediment in the vertical direction by receiving a vertically propagated sound wave signal, and obtain a sediment sample by using the sampler, as described in patent 201010293649.9 (in-situ measuring device for acoustic parameters of seafloor sediment). The so-called lateral measurement method, as disclosed in patent 201010265697.7 (hydraulic drive penetration based in-situ measurement system for acoustic properties of seabed sediments) and 201610084096.3 (ballast penetration type in-situ measurement device for acoustic properties of seabed sediments), is to synchronously penetrate a plurality of acoustic transducer probes fixed on a movable platen into the sediments by means of hydraulic pressure or ballast power, and estimate the acoustic properties of the sediments in the lateral direction by receiving sound wave signals transversely propagated between the probes.
In contrast, the sediment acoustic characteristic in-situ measurement system adopting the transverse measurement mode does not have the function of submarine sampling, and the additional utilization of the sampler not only wastes time and labor, but also is difficult to ensure the accuracy and the consistency of the sampling position and the in-situ measurement position, so that the establishment of the relation between the sediment acoustic characteristic and the physical property is not facilitated, and therefore, a sediment sampling device suitable for the sediment acoustic characteristic in-situ measurement system is needed to be designed.
Disclosure of Invention
The utility model provides a submarine sediment column sampler and carry on normal position measurement system's sampler thereof can install on hydraulic pressure injection or the movable pressure disk of ballast injection deposit acoustic characteristic normal position measurement system, with the synchronous injection deposit of acoustic transducer probe rod, when carrying out deposit acoustic characteristic normal position measurement, gain the deposit column sample on the same position to be used for the physical properties test analysis in later stage.
A columnar sampler for submarine sediments is characterized by comprising a sampling tube and a sample cutting head arranged at the front end of the sampling tube, wherein the sampling tube comprises an outer tube internally provided with a lining tube; the sample cutting head comprises a sleeve, a rotating shaft, a plurality of L-shaped limiting frames, a plurality of petal-type retaining pieces and a tool bit; the cutter head is used for cutting a sample when the sampler penetrates into the sediment, the inner cavity of the cutter head is cylindrical, and the inner diameter of the inner cavity of the cutter head is consistent with that of the inner lining pipe; the rear section of the cutter head is a thin tube, and the side surface of the cutter head is provided with a plurality of rectangular holes; the front end of the cutter head is a cutter edge, and the maximum outer diameter of the front section of the cutter head is the same as the outer diameter of the sleeve;
the front end of the sleeve is sleeved outside the rear section of the cutter head, and the rear end of the sleeve is sleeved outside the outer pipe; two limiting tables are arranged inside the casing and are respectively used for limiting the inner liner tube and the cutter head; the outer wall of the front section of the sleeve is provided with a plurality of rectangular windows, each rectangular window is provided with an L-shaped limiting frame through a rotating shaft, each L-shaped limiting frame is fixed with a petal type separation blade, and the L-shaped limiting frames can rotate around the rotating shafts within the range of the rectangular windows; the petal-type retaining pieces are fan-shaped metal sheets, are fixed at the lower part of the L-shaped limiting frame and rotate around the rotating shaft along with the L-shaped limiting frame, when the petal-shaped retaining pieces rotate to the position vertical to the wall of the sleeve, the lining pipe can be blocked, and when the petal-shaped retaining pieces rotate to be parallel to the wall of the sleeve, the lining pipe is communicated with the sample cutting head to allow a sample to pass through; after the rear end of the cutter head is inserted into the sleeve, the L-shaped limiting frame is simultaneously inserted into the rectangular window of the sleeve and the rectangular hole of the cutter head, and the cutter head is limited.
A sampler carried on an in-situ measurement system is characterized by comprising a sampling tube and a sample cutting head arranged at the front end of the sampling tube, wherein the sampling tube comprises an outer tube internally provided with a lining tube and a flange connected to the rear end of the outer tube; the sample cutting head comprises a sleeve, a rotating shaft, a plurality of L-shaped limiting frames, a plurality of petal-type retaining pieces and a tool bit; the cutter head is used for cutting a sample when the sampler penetrates into the sediment, the inner cavity of the cutter head is cylindrical, and the inner diameter of the inner cavity of the cutter head is consistent with that of the inner lining pipe; the rear section of the cutter head is a thin tube, and the side surface of the cutter head is provided with a plurality of rectangular holes; the front end of the cutter head is a cutter edge, and the maximum outer diameter of the front section of the cutter head is the same as the outer diameter of the sleeve;
the front end of the sleeve is sleeved outside the rear section of the cutter head, and the rear end of the sleeve is sleeved outside the outer pipe; two limiting tables are arranged inside the casing and are respectively used for limiting the inner liner tube and the cutter head; the outer wall of the front section of the sleeve is provided with a plurality of rectangular windows, each rectangular window is provided with an L-shaped limiting frame through a rotating shaft, each L-shaped limiting frame is fixed with a petal type separation blade, and the L-shaped limiting frames can rotate around the rotating shafts within the range of the rectangular windows; the petal-type retaining pieces are fan-shaped metal sheets, are fixed at the lower part of the L-shaped limiting frame and rotate around the rotating shaft along with the L-shaped limiting frame, when the petal-shaped retaining pieces rotate to the position vertical to the wall of the sleeve, the lining pipe can be blocked, and when the petal-shaped retaining pieces rotate to be parallel to the wall of the sleeve, the lining pipe is communicated with the sample cutting head to allow a sample to pass through; after the rear end of the cutter head is inserted into the sleeve, the L-shaped limiting frame is simultaneously inserted into the rectangular window of the sleeve and the rectangular hole of the cutter head, and the cutter head is limited.
When the device is used, the device is fixed on a movable pressure plate of an in-situ measurement system through a bolt, the movable pressure plate drives a sampler and an acoustic transducer probe rod to synchronously penetrate into a sediment, and sampling of the sediment and in-situ measurement of acoustic characteristics are realized.
The tool bit of the sample cutting head is a tubular metal component, and the front end of the tool bit is a sharp knife edge so as to reduce resistance when the tool bit penetrates into a sediment.
The outer tube of the sampling tube is a metal round tube and is made of stainless steel materials or carbon steel materials. The lining pipe of sampling tube is the nonmetal pipe for hold the deposit sample, adopt PVC material or organic glass material preparation. The front end and the rear end of the inner lining pipe are respectively limited by the inner limiting platform and the flange of the sleeve pipe, so that the inner lining pipe cannot move in the outer pipe.
The sleeve is a metal round tubular component and is used for connecting the whole sample cutting head with the outer pipe, and the connection mode of the sleeve and the sleeve can adopt threaded connection.
And the whole sampler is fixed on a movable pressure plate of the in-situ measurement system through the flange and the bolts.
The utility model has the following technical characteristics: (1) sampling and in-situ measurement are carried out synchronously, so that the working efficiency is improved; (2) the sampler is carried on a submarine sediment acoustic characteristic in-situ measurement system, sediment sampling is realized by means of the penetration driving force of the in-situ measurement system, and no additional counterweight like a common columnar sampler is needed; (3) the sampling position is consistent with the acoustic characteristic in-situ measurement position, so that later-stage test data analysis is facilitated; (4) the sampler is flexible to disassemble and convenient to operate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of the structure at D in fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1, showing the effect of the petal flaps closing.
FIG. 4 is a longitudinal cross-sectional view of the insert.
Fig. 5 is a cross-sectional view of the cutter head.
Fig. 6 is a schematic view of an assembly structure of a sampler on a ballast type sediment acoustic characteristic in-situ measurement system
The acoustic energy converter comprises a sampler 1, a sampler 2, an outer pipe 3, an inner lining pipe 4, a sleeve 5, a rotating shaft 6, an L-shaped limiting frame 7, a petal type separation blade 8, a tool bit 9, a bolt 10, a rectangular window 11, a flange 12, a rectangular hole 13, a movable pressure plate 14, an acoustic energy converter probe rod 15, a ballast weight 16 and a lifting rod.
Detailed Description
Referring to fig. 1-5, a short cylindrical sampler 1 carried on a submarine sediment acoustic characteristic in-situ measurement system comprises two parts, namely a sampling tube and a sample cutting head, wherein the sampling tube comprises an outer tube 2, an inner lining tube 3 and a flange 11, and the sample cutting head comprises a sleeve 4, a rotating shaft 5, an L-shaped limiting frame 6, a petal-shaped baffle 7 and a cutter head 8.
The outer tube 2 of the sampling tube is a thin-wall metal round tube and is mostly made of stainless steel or carbon steel. The rear end of the outer pipe 2 is connected with a flange 11, and the front end is connected with a sleeve 4 of the sample cutting head. The inner part of the outer tube 2 accommodates the inner lining tube 3, and the inner diameter of the outer tube 2 is slightly larger than the outer diameter of the inner lining tube 3.
The interior bushing pipe 3 of sampling tube is the nonmetal pipe of thin and long wall, is mostly PVC material or organic glass material. An inner liner tube 3 is disposed within the outer tube 2 for receiving sediment samples. The front end and the rear end of the inner lining pipe 3 are respectively limited by the sleeve 4 and the flange 11, so that the inner lining pipe cannot move in the outer pipe 2.
The flange 11 of the sampling tube is connected with the outer tube 2, and the whole sampler 1 is fixed on a movable pressure plate 13 of the in-situ measurement system through a bolt 9.
The sleeve 4 of the sample cutting head is an irregular metal round tubular component and is used for connecting the whole sample cutting head with the outer tube 2 of the sampling tube. The rear end of the sleeve 4 is sleeved outside the outer tube 2, and the front end is sleeved outside the thin end of the cutter head 8. The end of the sleeve 4 connected with the outer tube 2 is provided with a limit table to prevent the inner lining tube 3 from moving back and forth in the outer tube 2. The end of the interior of the casing 4 connected to the cutting head 8 also has a limiting table for limiting the length of the cutting head 8 extending into the casing 4. The outer wall of the end, connected with the cutter head 8, of the sleeve 4 is provided with a plurality of rectangular windows 10 for mounting the L-shaped limiting frame 6.
The L-shaped limiting frame 6 of the sample cutting head is arranged in the rectangular window 10 of the sleeve 4 through the rotating shaft 5 and can rotate around the rotating shaft 5 within the range of the rectangular window 10. An L-shaped limiting frame 6 is arranged on each rectangular window 10, and a petal-type retaining sheet 7 is fixed on each L-shaped limiting frame 6.
Petal formula separation blade 7 of cutting the appearance head is fan-shaped foil, is fixed in on the spacing frame 6 of L shape, can rotate round pivot 5 along with spacing frame 6 of L shape. A plurality of petal formula separation blades 7 rotate in step, rotate to the position perpendicular to 4 pipe walls of sleeve pipe at most, can be with the inside shutoff of sleeve pipe 4 this moment. When rotated inwardly to be parallel to the wall of the sleeve 4, the sleeve 4 opens to allow the sample to pass.
The cutting head 8 of the sample cutting head is a tubular metal component and is used for cutting a sample when the sampler penetrates into the sediment. The interior of the cutting head 8 is circular and has an inner diameter identical to the inner diameter of the inner lining tube 3 of the sampling tube. The rear end of the cutter head 8 is a thin tube and is provided with a rectangular hole 12. The rear end of the tool bit 8 is inserted into the sleeve 4, and the L-shaped limiting frame 6 is simultaneously inserted into the rectangular window 10 of the sleeve 4 and the rectangular hole 12 of the tool bit, and limits the length of the tool bit 8 extending out of the sleeve 4. The cutting head 8 is pointed at its front end to facilitate the reduction of resistance when penetrating the deposit. The maximum outer diameter of the cutting head 8 is the same as the outer diameter of the casing 4.
The utility model discloses according to the difference of counter weight setting mode, can derive multiple structure, specifically as follows:
the following is a brief description of the usage of the column sampler 1 of the present invention, taking an in-situ measurement system (hereinafter referred to as "in-situ system") for acoustic properties of ballast type marine sediments as an example.
As shown in fig. 6, the sampler 1 is fixed on a movable platen 13 of an in-situ system by bolts 9, the in-situ system is laid on the surface of the seabed sediment by a steel cable of an investigation ship, the steel cable is loosened, and the movable platen 13 and a lifting rod 15 drive the sampler 1 and an acoustic transducer probe 14 to synchronously penetrate into the sediment under the action of a ballast weight 16. Under the action of upward resistance, the thin end of the cutter head 8 connected with the sleeve 4 moves upwards and is inserted into the sleeve 4, the L-shaped limiting frame 6 and the petal-type retaining pieces 7 are driven to rotate around the rotating shaft 5 to the direction parallel to the pipe wall of the sleeve 4, and sediment samples cut by the cutter head can gradually enter the lining pipe 3. The length of the sample entering the inner liner 3 depends on the depth of penetration of the sampler 1 into the sediment. When the maximum penetration depth is reached and the acoustic characteristic in-situ measurement is completed, the in-situ system starts to be recovered, and the steel cable drives the lifting rod 15 and the movable pressing disc 13 to lift. Under the action of the downward resistance of the sediment, the thin end of the cutter head 8 is pulled out of the sleeve 4 to drive the L-shaped limiting frame 6 and the petal-type separation blades 7 to rotate around the rotating shaft 5 to the direction vertical to the pipe wall of the sleeve 4, and in the rotating process, the sediment sample is cut off by the petal-type separation blades 7 and is reserved in the lining pipe 3. After the sample is recovered to the survey ship along with the in-situ system, the bolt 9 is disassembled, the sampler 1 is taken down from the in-situ system, the outer pipe 2 of the sampling pipe and the sleeve 4 of the sample cutting head are separated, the inner lining pipe 3 containing the sample can be taken out from the outer pipe 2, and therefore the synchronous sampling process of one-time in-situ measurement is completed.
In addition, the following use modes can be provided:
directly be in the utility model discloses a bottom sediment column sampler rear end sets up conventional counter weight to use with conventional sample mode.
The flange of the columnar sampler carried on the submarine sediment acoustic characteristic in-situ measurement system is used as a limiting form and a connecting mechanism, the flange can be directly used on the in-situ measurement system and a universal sampler, the flange is directly connected with a movable pressure plate of the system in the former case, and a lifting head containing a counterweight is connected in the latter case.
The utility model discloses a submarine sediment column sampler rear end's outer tube outer wall's rear portion establishes an annular protruding structure as the antiskid of counter weight spacing, and the outer tube front end is used for the sample, and inside sampling tube directly straightens outer tube rear end (slightly weak point in outward appearance), and uses the bolt (insert in the hole of outer tube rear end) of connecting the hanging head to act as stop gear.
Claims (2)
1. A columnar sampler for submarine sediments is characterized by comprising a sampling tube and a sample cutting head arranged at the front end of the sampling tube, wherein the sampling tube comprises an outer tube (2) internally provided with an inner lining tube (3); the sample cutting head comprises a sleeve (4), a rotating shaft (5), a plurality of L-shaped limiting frames (6), a plurality of petal-type retaining pieces (7) and a tool bit (8); the cutter head (8) is used for cutting a sample when the sampler penetrates into the sediment, the inner cavity of the cutter head (8) is cylindrical, and the inner diameter of the cutter head is consistent with that of the lining pipe (3); the rear section of the cutter head (8) is a thin tube, and the side surface of the cutter head is provided with a plurality of rectangular holes (12); the front end of the cutter head (8) is a knife edge, and the maximum outer diameter of the front section of the cutter head (8) is the same as the outer diameter of the sleeve (4);
the front end of the sleeve (4) is sleeved outside the rear section of the cutter head (8), and the rear end of the sleeve is sleeved outside the outer pipe (2); two limiting tables are arranged inside the casing (4) and are respectively used for limiting the inner liner tube (3) and the cutter head (8); the outer wall of the front section of the sleeve (4) is provided with a plurality of rectangular windows (10), each rectangular window (10) is provided with an L-shaped limiting frame (6) through a rotating shaft (5), each L-shaped limiting frame (6) is fixed with a petal-type baffle (7), and the L-shaped limiting frames (6) can rotate around the rotating shafts (5) within the range of the rectangular windows (10); the petal-type retaining pieces (7) are fan-shaped metal sheets, are fixed at the lower part of the L-shaped limiting frame (6), rotate around the rotating shaft (5) along with the L-shaped limiting frame (6), can block the lining pipe (3) when rotating to the part vertical to the pipe wall of the sleeve (4), and enable the lining pipe (3) to be communicated with the sample cutting head when rotating to the part parallel to the pipe wall of the sleeve (4) to allow a sample to pass through; after the rear end of the cutter head (8) is inserted into the sleeve (4), the L-shaped limiting frame (6) is simultaneously inserted into the rectangular window (10) of the sleeve (4) and the rectangular hole (12) of the cutter head, and the cutter head (8) is limited.
2. A sampler carried on an in-situ measurement system, characterized by comprising the seafloor sediment column sampler of claim 1, and a flange (11) is further connected to the rear end of the outer tube (2) of the seafloor sediment column sampler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021682977.3U CN212964116U (en) | 2020-08-12 | 2020-08-12 | Columnar sampler for submarine sediment and sampler carried on in-situ measurement system |
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| CN202021682977.3U CN212964116U (en) | 2020-08-12 | 2020-08-12 | Columnar sampler for submarine sediment and sampler carried on in-situ measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795857A (en) * | 2020-08-12 | 2020-10-20 | 自然资源部第一海洋研究所 | Columnar sampler for submarine sediment and application of columnar sampler in-situ measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795857A (en) * | 2020-08-12 | 2020-10-20 | 自然资源部第一海洋研究所 | Columnar sampler for submarine sediment and application of columnar sampler in-situ measurement system |
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