Seabed sediment sampler with high fidelity rate

Abstract

The utility model discloses a high-fidelity submarine sediment sampler, and belongs to the field of submarine sediment sampling equipment. A high-fidelity submarine sediment sampler comprises a working platform, a frame A, a damping structure, a main machine and a sampling pipe, the working platform is provided with an overturning bracket and a clamping mechanism, the frame A is provided with a mooring rope, the upper end of the damping structure is connected with the mooring rope, the lower end of the damping structure is connected with the upper end of the main machine, and the upper end of the main machine is connected with the clamping mechanism. A vibration structure used for driving the main machine to vibrate is arranged in the main machine, a drainage pipe is arranged at the lower end of the main machine, the upper end of the sampling pipe is connected with the drainage pipe, and a sampling tool bit is installed at the lower end of the sampling pipe. The vibration structure is arranged in the main machine, the adhesive force and the friction force between sediments and the sampling pipe are destroyed through the vibration effect, so that the sediments enter the sampling pipe more easily, the compression of a sample during sampling is effectively avoided, and the sampling result is more fidelity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of seabed sediment sampling equipment, especially relates to a high fidelity seabed sediment sampler. BACKGROUND

[0002] Traditional underwater sediment sampling usually adopts gravity sampler, and the gravity sampler forms free fall in water by using its own weight and penetrates into the inside of water bottom sediment to obtain sediment sample in the form of impact. Since the gravity sampler depends on its own weight to insert into the sediment for sampling, sample compression is easy to occur, the sampling result is distorted, and it is difficult to insert into the relatively hard sediment, resulting in sampling failure. When seabed sediment sampling in deep sea is carried out, a long cable is needed, and the self weight of the cable is large, for example, the weight of ten thousand meters cable is as high as several tons. A large part of the tension of the cable is used to overcome the self weight of the cable, and the weight reserved for the sampler is small, and the self weight of the sampler is small, so that long column sampling cannot be realized. SUMMARY

[0003] The utility model aims at overcoming the prior art, and provides a high fidelity seabed sediment sampler.

[0004] The utility model discloses the following technical scheme: a high fidelity seabed sediment sampler, including host computer, damping structure, sampling pipe, A frame and operation platform, be provided with turnover bracket and clamping mechanism on the operation platform, be provided with cable on the A frame, the upper end of damping structure is connected with the cable, the lower end of damping structure is connected with the upper end of host computer, be provided with the vibration structure for driving the vibration of host computer in the inside of host computer, the lower extreme of host computer is equipped with the drain pipe, the upper end of sampling pipe is connected with the drain pipe, the lower end of sampling pipe is installed and is taken sampling cutter head.

[0005] Further, the clamping mechanism includes two horizontally opposite clamping arms, the clamping arm includes a drive device, one end of the drive device is provided with a clamping forceps, and the side face of the clamping forceps away from the drive device is a semicircular arc structure.

[0006] Further, when the two clamping forceps in the clamping mechanism intersect, one part of one clamping forceps is located above the other clamping forceps, and the other part of the clamping forceps is located below the other clamping forceps.

[0007] Further, one end of the cable is provided with a working cable load bearing head, and the cable is connected with the damping structure through the working cable load bearing head.

[0008] Further, the damping structure comprises an inner frame, an outer frame, a bottom plate, a connecting column and a pin shaft, the bottom plate is fixed with the connecting column on the lower surface, the connecting column is connected with the upper end of the main machine, the inner frame is arranged on the upper surface of the bottom plate, the inner frame is rigidly connected with the bottom plate, the inner frame is located inside the outer frame, the inner frame is connected with the outer frame through a flexible piece, the outer frame is provided with a vertical waist-shaped hole on the side wall, the inner frame is provided with a corresponding round hole, the pin shaft passes through the waist-shaped hole on the outer frame and the round hole on the inner frame to connect the outer frame and the inner frame, the top of the outer frame is provided with a connecting bolt, the connecting bolt is connected with the pin shaft through a connecting rod, and the connecting bolt is connected with the cable.

[0009] Further, when the sampling pipe is one, the upper end of the sampling pipe is connected with the drain pipe, and the lower end of the sampling pipe is provided with a sampling cutter head.

[0010] Further, when the sampling pipe is one, the upper end of the sampling pipe is connected with the drain pipe, and the lower end of the sampling pipe is provided with a sampling cutter head.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] (1) The main machine in the utility model is provided with a vibration structure, the adhesion and friction between the sediment and the sampling pipe are damaged through vibration, so that the sediment is more easily entered into the sampling pipe, the compression of the sample is effectively avoided, and the sampling result is more faithful.

[0013] (2) The damping structure in the utility model can ensure that the main machine is in a free vibration state during work, so that vibration sampling is better carried out, the efficiency and sample fidelity of the seabed sediment sampling are improved, and the buffer characteristics can slowly load the lifting force on the cable when lifting, and part of the force is preloaded on the cable in the form of elastic force, so that the lifting effect is improved in cooperation with vibration.

[0014] (3) The sampler in the utility model can realize vertical assembly, lowering and recycling of the sampling pipe, and the occupied space is small. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form part of the present application, and do not constitute limitation to the embodiments of the utility model. In the drawings:

[0016] Figure 1 It is a structural schematic view of the seabed sediment sampler in the utility model;

[0017] Figure 2 It is a structural schematic view of the seabed sediment sampler in the utility model installed on a work mother ship.

[0018] Figure 3 It is the structure schematic view of two clamping pincers in the clamping mechanism in the utility model;

[0019] Figure 4 It is the structure schematic view of two clamping pincers in the clamping mechanism in the utility model;

[0020] Figure 5 It is a structure schematic view of the damping structure in the utility model;

[0021] In the figure, 1-main machine, 2-damping structure, 21-inner frame, 22-outer frame, 23-flexible piece, 24-bottom plate, 25-connecting column, 26-pivot, 27-connecting bolt, 3-sampling pipe, 31-sampling cutter head, 4-A frame, 5-operation platform, 6-overturning bracket, 7-clamping structure, 71-driving device, 72-clamping pincer, 8-cable, 81-working cable load head, 9-operation mother ship. DETAILED DESCRIPTION

[0022] The technical scheme of the present application will be further described below in combination with the drawings and through specific embodiments.

[0023] Wherein, the drawings are only used for example description, and the representation is only schematic diagram, not real object drawing, and cannot be understood as the limitation of the present application; in order to better illustrate the embodiments of the present application, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0024] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for example description, and cannot be understood as the limitation of the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0025] In the description of the present application, unless otherwise explicitly specified and limited, if the term "connection" and the like appear to indicate the connection relationship between components, the term should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0026] As shown in Figures 1 to 5 The utility model discloses a high fidelity rate's seabed deposit sampler.

[0027] As shown in Figure 1 A kind of high fidelity rate's seabed deposit sampler, including host computer 1, damping structure 2, sampling tube 3, A frame 4 and operation platform 5, the operation platform 5 is provided with turnover bracket 6 and clamping mechanism 7, the A frame 4 is provided with cable 8, the upper end of damping structure 2 is connected with cable 8, the lower end of damping structure 2 is connected with the upper end of host computer 1, the inside of host computer 1 is provided with vibration structure for driving host computer 1 vibration, the lower end of host computer 1 is equipped with drain pipe, the upper end of sampling tube 3 is connected with drain pipe, sampling cutter head 31 is installed at the lower end of sampling tube 3.

[0028] The operation platform 5 is used to be installed on operation mother ship 9, the turnover bracket 6 is used to place host computer 1 during operation, and the clamping mechanism 7 is used to clamp sampling tube 3 during operation. For example, as shown in Figure 2 The operation platform 5 is installed at the edge of the stern deck of operation mother ship 9, so that the clamping mechanism 7 is located at the edge of the stern deck of operation mother ship 9, so as to clamp sampling tube 3 by using clamping mechanism 7.

[0029] In the embodiment, when sampling operation is carried out, A frame 4 and operation platform 5 are arranged on operation mother ship 9, host computer 1 is placed on the turnover bracket 6 of operation platform 5, the upper end of damping structure 2 is connected with cable 8, the upper end of host computer 1 is connected with the lower end of damping structure 2, and host computer 1 is connected with the control equipment located on operation mother ship 9. Sampling cutter head 31 is installed at the lower end of sampling tube 3, then sampling tube 3 provided with sampling cutter head 31 is lifted and erected by using crane, sampling tube 3 is clamped by using clamping mechanism 7, host computer 1 is lifted, the drain pipe on host computer 1 is connected with the upper end of sampling tube 3, host computer 1 is swung out together with sampling tube 3 by using A frame 4, and sampling is carried out by slowly lowering cable 8.

[0030] In the embodiment, the host 1 is provided with a vibration structure, which can destroy the adhesion and friction between the sediment and the sampling tube 3 through vibration, so that the sediment can more easily enter the sampling tube 3, more seabed environments can be sampled, the compression of the sample can be effectively avoided, and the sampling result is more faithful.

[0031] In some embodiments of the embodiment, as shown in Figure 3 The clamping mechanism 7 includes two clamping arms located in the same horizontal plane and oppositely arranged, and the clamping arms include driving devices 71, one end of each driving device 71 is provided with a clamping jaw 72, the side of the clamping jaw 72 away from the driving device 71 is a semicircular arc structure, and the area surrounded by the two clamping jaws 72 is a clamping area. When clamping, the two driving devices 71 respectively drive the corresponding clamping jaws 72 to move towards each other to clamp the sampling tube 3; when unclamping, the two driving devices 71 respectively drive the corresponding clamping jaws 72 to move away from each other to release the sampling tube 3.

[0032] The outer wall of the sampling tube 3 is usually circular, and the side of the clamping jaw 72 away from the driving device 71 is provided with a semicircular arc structure, so that when the sampling tube 3 is clamped, the clamping jaw 72 can better fit the outer wall of the sampling tube 3, and the clamping effect of the clamping mechanism 7 is improved.

[0033] In some embodiments of the embodiment, as shown in Figure 4 When the two clamping jaws 72 in the clamping mechanism 7 intersect, one part of one clamping jaw 72 is located above the other clamping jaw 72, and the other part of the clamping jaw 72 is located below the other clamping jaw 72. That is, when the two clamping jaws 72 move towards each other to contact each other, if the two clamping jaws 72 continue to move towards each other, the two clamping jaws 72 intersect, at this time, one part of one clamping jaw 72 is located above the other clamping jaw 72, and the other part of the clamping jaw 72 is located below the other clamping jaw 72, so that the sampling tube 3 with a cross-sectional radius smaller than the radius of the semicircular arc structure of the clamping jaw 72 can be clamped.

[0034] In some embodiments of the embodiment, one end of the cable 8 is provided with a working cable load head 81, and the cable 8 is connected to the damping structure 2 through the working cable load head 81.

[0035] In some embodiments of the embodiment, as shown in Figure 5As shown, the damping structure 2 comprises an inner frame 21, an outer frame 22, a bottom plate 24, a connecting column 25 and a pin shaft 26. The bottom plate 24 is fixed with the connecting column 25 at the lower surface, and the connecting column 25 is connected with the upper end of the main machine 1. The inner frame 21 is arranged at the upper surface of the bottom plate 24, and the inner frame 21 is rigidly connected with the bottom plate 24. The inner frame 21 is located inside the outer frame 22, and the inner frame 21 is connected with the outer frame 22 through the flexible member 23. The outer frame 22 is provided with a vertical waist-shaped hole at the side wall, and the inner frame 21 is provided with a corresponding circular hole. The pin shaft 26 penetrates through the waist-shaped hole of the outer frame 22 and the circular hole of the inner frame 21 to connect the outer frame 22 and the inner frame 21. The top of the outer frame 22 is provided with a connecting bolt 27, the connecting bolt 27 is connected with the pin shaft 26 through a connecting rod, and the connecting bolt 27 is connected with the cable 8.

[0036] In these embodiments, the force of the cable 8 is transmitted to the connecting column 25 through the flexible member 23, and then transmitted to the main machine 1, thereby playing a buffering role. The vibration force of the main machine 1 is also transmitted to the cable 8 through the flexible member 23, thereby playing a damping role. By arranging the pin shaft 26 between the inner frame 21 and the outer frame 22, when the extension distance between the inner frame 21 and the outer frame 22 exceeds the preset range, the flexible connection between the inner frame 21 and the outer frame 22 is converted into rigid connection, thereby preventing the flexible member 23 from being stretched beyond its limit strength due to excessive force.

[0037] In some embodiments of the present embodiment, the number of sampling pipes 3 is one or more. When the number of sampling pipes 3 is one, the upper end of the sampling pipe 3 is connected with the drain pipe, and the lower end of the sampling pipe 3 is provided with a sampling cutter head 31. When the number of sampling pipes 3 is more than one, the plurality of sampling pipes 3 are connected in sequence, a detachable sealing structure is arranged at the connection between adjacent sampling pipes 3, the upper end of the uppermost sampling pipe 3 is connected with the drain pipe, and the lower end of the lowermost sampling pipe 3 is provided with a sampling cutter head 31.

[0038] In the working process, when the sampling pipe 3 is one, the sampling cutter head 31 is installed at the lower end of the sampling pipe 3, the sampling pipe 3 provided with the sampling cutter head 31 is lifted and erected by the crane, the sampling pipe 3 is clamped by the clamping mechanism 7, the main machine 1 is lifted, and the drain pipe on the main machine 1 is connected with the upper end of the sampling pipe 3. If the sampling pipe 3 is multiple, one sampling pipe 3 is taken first, the sampling cutter head 31 is installed at the lower end of the sampling pipe 3, the sampling pipe 3 provided with the sampling cutter head 31 is lifted and erected by the crane, the sampling pipe 3 is clamped by the clamping mechanism 7, then a new sampling pipe 3 is taken, the new sampling pipe 3 is lifted and erected by the crane, the lower end of the new sampling pipe 3 is connected with the upper end of the clamped sampling pipe 3, then the sampling pipe 3 is lowered, the upper end of the uppermost sampling pipe 3 is clamped by the clamping mechanism 7, and the step is repeated until all the sampling pipes 3 are assembled into one whole, the main machine 1 is lifted, and the drain pipe on the main machine 1 is connected with the upper end of the uppermost sampling pipe 3.

[0039] In some embodiments of the present embodiment, the vibration assembly includes a control system, a motor, a hydraulic pump, a hydraulic oil tank, a hydraulic motor, an eccentric wheel assembly and the like. The vertical up-and-down vibration force of the main machine 1 is realized through the movement of the eccentric wheel assembly, different rotation speeds of the motor are generated, different flow rates of the hydraulic pump are generated, and different vibration frequencies of the eccentric wheel assembly are generated through the hydraulic motor, so as to cope with different adhesion and friction forces of different substrates on the sampling pipe and improve the sampling efficiency.

[0040] It should be noted that the sampling cutter head 31 and the plugging structure in the present embodiment are prior art, for example, the sampling cutter head 31 can adopt the sediment sampling cutter head disclosed in the patent with the application number CN202122962647.0, the plugging structure can adopt the sediment sample anti-sliding device disclosed in the patent with the application number CN202122981365.5, and the connection between the sampling pipes 3 can adopt the sampling pipe 3 connection structure disclosed in the patent with the application number CN202122981386.7, which will not be described here.

[0041] The above specific embodiments have further detailed the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-fidelity seabed sediment sampler, characterized in that, The device includes a main unit, a shock-absorbing structure, a sampling tube, an A-frame, and a working platform. The working platform is equipped with a flipping bracket and a clamping mechanism. A cable is installed on the A-frame. The upper end of the shock-absorbing structure is connected to the cable, and the lower end of the shock-absorbing structure is connected to the upper end of the main unit. The main unit has a vibration structure inside for driving the main unit to vibrate. The lower end of the main unit is equipped with a drain pipe, and the upper end of the sampling tube is connected to the drain pipe. A sampling blade is installed at the lower end of the sampling tube.

2. The high-fidelity seabed sediment sampler according to claim 1, characterized in that, The clamping mechanism includes two horizontally opposite clamping arms. Each clamping arm includes a driving device. One end of the driving device is provided with a clamping clamp, and the side of the clamping clamp away from the driving device has a semi-circular arc structure.

3. A high-fidelity seabed sediment sampler according to claim 2, characterized in that, When the two clamping jaws in the clamping mechanism cross, a portion of one clamping jaw is above the other clamping jaw, and the other portion of the clamping jaw is below the other clamping jaw.

4. A high-fidelity seabed sediment sampler according to claim 1, characterized in that, One end of the cable is provided with a working cable bearing head, and the cable is connected to the shock absorption structure through the working cable bearing head.

5. A high-fidelity seabed sediment sampler according to claim 1, characterized in that, The shock-absorbing structure includes an inner frame, an outer frame, a base plate, connecting columns, and a pin. The connecting columns are fixedly mounted on the lower surface of the base plate and are connected to the upper end of the main unit. The inner frame is located on the upper surface of the base plate and is rigidly connected to the base plate. The inner frame is located inside the outer frame and is connected to the outer frame via a flexible component. The side wall of the outer frame has a vertical waist-shaped hole, and the inner frame has a corresponding round hole. The pin passes through the waist-shaped hole on the outer frame and the round hole on the inner frame to connect the outer frame and the inner frame. The top of the outer frame has a connecting bolt, which is connected to the pin via a connecting rod and is connected to a cable.

6. A high-fidelity seabed sediment sampler according to claim 1, characterized in that, When there is one sampling tube, the upper end of the sampling tube is connected to the drain pipe, and the lower end of the sampling tube is equipped with a sampling blade.

7. A high-fidelity seabed sediment sampler according to claim 1, characterized in that, When there are multiple sampling tubes, the multiple sampling tubes are connected in sequence, and a detachable sealing structure is installed at the connection of adjacent sampling tubes. The upper end of the uppermost sampling tube is connected to the drain pipe, and the lower end of the lowermost sampling tube is equipped with a sampling blade.

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