Columnar sample cutting and bottom holding device of underwater sampler

Abstract

The invention relates to the technical field of underwater samplers, in particular to an underwater sampler columnar sample cutting and bottom-holding device which comprises a cutting and bottom-holding mechanism arranged on a sampling cylinder. The bottom-holding cutting mechanism comprises a pay-off groove formed in the inner wall of the bottom of a sampling cylinder, a cutting steel wire rope arranged in the pay-off groove, a winding component arranged on the sampling cylinder and a bottom-holding component installed on the pay-off groove, a movement track is fixed to one side of the sampling cylinder, and a moving guide rail is fixed to the other side of the sampling cylinder. The winding component drives the cutting steel wire rope to move from the pay-off groove to the movement track so as to cut the columnar sample, and meanwhile the cutting steel wire rope drives the bottom holding component to hold the cut columnar sample. According to the device, the attraction effect of a sample source environment on a columnar sample in the sampling barrel is reduced, damage to the columnar sample in the collecting process is effectively avoided, better flexibility and accuracy are achieved during cutting, the cutting precision and efficiency of the columnar sample are improved, and damage and pollution to the columnar sample can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater samplers, and particularly to a device for cutting columnar samples and holding the bottom of an underwater sampler. Background Art

[0002] A columnar sampler is a key device for obtaining bottom sediments, which is widely used in fields such as underwater scientific research, environmental monitoring, and resource development. With the continuous in-depth research on ecological and environmental changes, the demand for efficient and accurate sampling equipment is increasing day by day. During underwater sampling, the integrity and accuracy of columnar samples are crucial. Existing samplers directly collect columnar samples by inserting the sampling cylinder into the sediment. However, the collected columnar samples are still connected to the source sample environment, and it is easy for the columnar samples to fall off when transferred to the sampling cylinder, resulting in damage to the integrity of the columnar samples. There are certain deficiencies in the cutting and bottom holding of columnar samples. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a device for cutting columnar samples and holding the bottom of an underwater sampler, which solves the problems of certain deficiencies in the cutting and bottom holding of columnar samples in the prior art, which may lead to contamination or falling off of columnar samples.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: A device for cutting columnar samples and holding the bottom of an underwater sampler includes a cutting and bottom-holding mechanism provided in the sampling cylinder, which quickly cuts the columnar sample and holds the bottom after sampling. The cutting and bottom-holding mechanism includes a wire-releasing groove opened on the inner wall of the bottom of the sampling cylinder, a cutting steel wire rope arranged in the wire-releasing groove, a wire-winding component arranged on the sampling cylinder, and a bottom-holding component installed in the wire-releasing groove. A moving track is fixed on one side of the sampling cylinder. The wire-winding component drives the cutting steel wire rope to move from the wire-releasing groove to the moving track to cut the columnar sample, and at the same time, the cutting steel wire rope drives the bottom-holding component to hold the cut columnar sample.

[0005] As a further optimized solution of the present invention, the cutting and bottom-holding mechanism further includes a buckle component arranged at the bottom of the sampling cylinder for restricting the position of the cutting steel wire rope. The buckle component includes a plurality of plastic wire groove buckles distributed in a circumferential array on the inner side of the bottom of the sample cylinder, and one of the plastic wire groove buckles is located on one side of the recovery port at the bottom of the moving track.

[0006] As a further optimized solution of the present invention, connecting blocks are respectively fixed on the upper and lower sides of the plastic wire groove buckle by bolts, and the connecting blocks are fixed to the inner wall of the sampling cylinder.

[0007] As a further optimized solution of the present invention, the bottom-holding component includes a bottom-holding net arranged inside the wire-releasing groove, and a pulling steel wire rope fixed on the bottom-holding net and fixed to the cutting steel wire rope.

[0008] As a further optimization solution of the present invention, the winding component includes a motor fixed on the top of the sampling cylinder, a wire harness turntable fixed on the output end of the motor, and the winding end at the top of the cutting wire rope is fixed on the wire harness turntable.

[0009] As a further optimization solution of the present invention, an anti - detachment component for preventing the collected columnar sample from falling off is further arranged inside the sampling cylinder. The anti - detachment component includes a number of irregularly distributed falling - off blocking plates arranged on the inner wall of the sampling cylinder.

[0010] As a further optimization solution of the present invention, a rotating seat fixed to the sampling cylinder is rotatably arranged at one end of the falling - off blocking plate.

[0011] As a further optimization solution of the present invention, a connecting bracket is fixed on the top of the sampling cylinder. Four transmission rods distributed in a rectangle are fixedly arranged on the top of the connecting bracket, and a force - acting plate for connecting a hydraulic driving part is fixedly installed on the top of the four transmission rods.

[0012] By means of the above - mentioned technical solution, the present invention provides an underwater sampler for cutting and bottom - holding columnar samples. Compared with the prior art, it has at least the following beneficial effects: 1. The present invention cuts the collected columnar sample in the sampling cylinder by setting a cutting and bottom - holding mechanism. After the sampling cylinder completes the sampling of the columnar sample, the cutting wire rope is wound up by the winding component. The cutting wire rope comes out from the wire - releasing groove, cuts and separates the columnar sample inside the sampling cylinder from the sample - source environment, making it have an obvious boundary, so as to reduce the attracting effect of the sample - source environment on the columnar sample inside the sampling cylinder, effectively avoiding damage to the columnar sample during the sampling process. The cutting wire rope has better flexibility and accuracy during cutting, not only improving the cutting precision and efficiency of the columnar sample, but also reducing damage and pollution to the columnar sample.

[0013] 2. The present invention firmly holds the collected columnar sample in the sampling tube by setting a bottom - holding component. After the cutting wire rope cuts the columnar sample, the bottom - holding net is pulled by pulling the wire rope to cover the bottom of the sampling cylinder, preventing the columnar sample from being lost or polluted during the rising process, and ensuring the integrity of the collected columnar sample.

[0014] 3. The present invention restricts the columnar sample in the sampling cylinder by setting an anti - detachment component. Relying on the up - and - down movement of the sampling cylinder, the falling - off blocking plate is driven to perform a flipping movement at the rotating shaft by the friction and gravity of the columnar sample to prevent the columnar sample from falling off the sampling cylinder, so as to improve the success rate of sampling the columnar sample. Description of the Drawings

[0015] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a front three-dimensional sectional view of the present invention; Figure 3 is Figure 2 an enlarged schematic diagram of part A of Figure 4 is a bottom view of the present invention; Figure 5 is a partial structural schematic diagram of the anti-detachment component of the present invention; Figure 6 is an unfolded state schematic diagram of the bottom component of the present invention.

[0016] In the figure: 1, sampling cylinder; 2, connecting bracket; 3, transmission rod; 4, force acting plate; 5, cutting and bottoming mechanism; 51, wire laying groove; 52, cutting steel wire rope; 53, movement track; 54, recovery port; 55, winding component; 551, motor; 552, wire harness turntable; 56, bottom component; 561, bottom net; 562, pulling steel wire rope; 57, buckle component; 571, plastic wire groove buckle; 572, connecting block; 58, anti-detachment component; 581, detachment blocking plate; 582, rotating seat. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] First embodiment As an oceanographic research device for collecting samples of submarine sediments such as sediment, rock, sedimentary layers, etc., the deep-sea column sampler can vertically insert into the seabed and extract continuous sediment samples within a certain depth range through its long tubular structure. Since the collected columnar samples are connected to the sediments, it is easy to occur the situation of columnar sample flowing water or being polluted when transferring the sampling cylinder 1. In order to prevent the columnar samples from being lost or polluted during the rising process and ensure the integrity of the collected columnar samples, refer to Figure 1 - Figure 4, this embodiment provides an underwater sampler columnar sample cutting and bottoming device, which is composed of a sampling cylinder 1, a connecting bracket 2, a cutting and bottoming mechanism 5 and an anti-detachment component 58. During sampling, the sampling cylinder 1 is vertically inserted into the sediment, and the sediment in the sampling cylinder 1 can be sampled.

[0019] To ensure the stability of the connection of the sampling cylinder 1, four transmission rods 3 distributed in a rectangle are fixedly arranged at the top of the connecting bracket 2. A force acting plate 4 for connecting a hydraulic driving member is fixedly installed at the top of the four transmission rods 3. The output end of the external hydraulic driving member is fixed to the force acting plate 4. The output end of the hydraulic driving member pushes the transmission rods 3 and the connecting bracket 2 to move through the force acting plate 4, thereby pushing the sampling cylinder 1 to move for sampling.

[0020] The cutting and bottoming mechanism 5 is arranged on the sampling cylinder 1. After the sampling cylinder 1 samples, it quickly cuts the columnar sample and bottoms it. The cutting and bottoming mechanism 5 includes a wire releasing groove 51 opened on the inner wall of the bottom of the sampling cylinder 1, a cutting steel wire rope 52 arranged inside the wire releasing groove 51 and with its movable end fixed to the sampling cylinder 1. A movement track 53 is welded on one inner wall of the sampling cylinder 1. The movement track 53 is a vertically arranged pipe. The cutting steel wire rope 52 moves along the movement track 53. A recovery port 54 matching the cutting steel wire rope 52 is arranged at the bottom of the movement track 53. The cutting steel wire rope 52 enters the movement track 53 through the recovery port 54. When the cutting steel wire rope 52 is wound up, the cutting steel wire rope 52 slides inside the movement track 53.

[0021] To ensure the stability of the cutting steel wire rope 52 when it is wound up, a winding component 55 for pulling the cutting steel wire rope 52 to cut the columnar sample is arranged on the sampling cylinder 1. The winding component 55 includes a motor 551 fixed to the top of the sampling cylinder 1, a wire harness turntable 552 fixed to the output end of the motor 551, and the winding end at the top of the cutting steel wire rope 52 is fixed to the wire harness turntable 552. When the cutting steel wire rope 52 is wound up by the winding component 55, the cutting steel wire rope 52 moves out from the wire releasing groove 51 to cut the columnar sample. At the same time, the cutting steel wire rope 52 drives the bottoming component 56 to hold the cut columnar sample.

[0022] Second Embodiment To ensure the stability of the cutting steel wire rope 52 stored in the wire releasing groove 51 and prevent the cutting steel wire rope 52 from detaching during sampling, refer to Figure 3 , Figure 4 and Figure 6, on the basis of the first embodiment, a buckle component 57 for restricting the position of the cutting steel wire rope 52 is provided at the bottom of the sampling cylinder 1. The specific implementation method is that the buckle component 57 includes four plastic wire groove buckles 571 distributed in a circumferential array on the inner side of the bottom of the sample cylinder. One of the plastic wire groove buckles 571 is located at the bottom of the recovery port 54, which is the No. 1 position. The remaining positions are the No. 2 position, the No. 3 position, and the No. 4 position in a clockwise direction starting from the No. 1 position. Connecting blocks 572 are respectively fixed on the upper and lower sides of the plastic wire groove buckle 571 through bolts, and the connecting blocks 572 are fixed to the inner wall of the sampling cylinder 1. The cutting steel wire rope 52 is arranged in a ring in the wire releasing groove 51.

[0023] When the cutting steel wire rope 52 is wound up, the diameter of the annular cutting steel wire rope 52 in the wire releasing groove 51 gradually decreases. It moves along the movement track 53 through the recovery port 54. After the cutting steel wire rope 52 comes out of the wire releasing groove 51, it is successively drawn out from the No. 4 position, the No. 2 position, and the No. 3 position. When the cutting steel wire rope 52 is drawn out from the positions respectively, the corresponding plastic wire groove buckles 571 are respectively pushed out, and finally it comes out from the No. 1 position and enters the recovery port 54, thereby cutting the columnar sample in the sampling cylinder 1 from the sediment.

[0024] In order to prevent the columnar sample from being lost or contaminated during the rising process and ensure the integrity of the collected columnar sample, a bottom holding component 56 for holding the cut columnar sample is provided inside the wire releasing groove 51. The bottom holding component 56 includes a bottom holding net 561 provided inside the wire releasing groove 51, and a pulling steel wire rope 562 fixed to the bottom holding net 561 and fixed to the cutting steel wire rope 52. The cutting steel wire rope 52 drives the bottom holding net 561 through the pulling steel wire rope 562. While the cutting steel wire rope 52 cuts the sample, the bottom holding net 561 for holding the columnar sample gradually comes out from the No. 4 position, the No. 2 position, and the No. 3 position under the action of the pulling steel wire rope 562, and finally reaches the No. 1 position, realizing the sample bottom holding at the cutting opening of the columnar sample inside the sampling cylinder 1, preventing the columnar sample from quickly detaching from the sampling cylinder 1. Among them, the bottom holding net 561 is all connected together through the pulling steel wire rope 562 to ensure the synchronous movement of the bottom holding net 561.

[0025] Third Embodiment In order to prevent the columnar sample from falling off from the sampling cylinder 1, with reference to Figure 5 , on the basis of the second embodiment, an anti - detachment component 58 for preventing the taken - out columnar sample from falling off is further provided inside the sampling cylinder 1. The specific implementation method is that the anti - detachment component 58 includes a number of irregularly distributed falling - off blocking plates 581 provided on the inner wall of the sampling cylinder 1, and a rotating seat 582 fixed to the sampling cylinder 1 is rotatably provided at one end of the falling - off blocking plate 581.

[0026] When the sampling cylinder 1 is inserted downward into the sediment layer for sample sampling, due to the frictional force, the sample shedding baffle 581 on the rotating seat 582 flips upward and gets as close as possible to the inner wall of the sampling cylinder 1, facilitating the entry of the columnar sample into the sampling cylinder 1. After the sampling is completed, under the action of hydraulic pressure, the sampling cylinder 1 moves upward away from the deep-sea source sample environment. Due to the frictional force and gravity of the columnar sample inside the sampling cylinder 1 during the upward movement, the sample shedding baffle 581 flips downward along the rotating seat 582, making the large-area upper plate of the sample shedding baffle 581 directly contact the sample, so as to reduce the shedding state of the sample and achieve the function of preventing the columnar sample from shedding.

[0027] In the present invention, the cutting wire rope 52 is wound up by the winding member 55. The cutting wire rope 52 comes out from the wire laying groove 51. By arranging the bottom support member 56, the collected columnar sample is stably held in the sampling tube. After the cutting wire rope 52 cuts the columnar sample, by pulling the wire rope 562, the bottom net 561 is pulled to cover the bottom of the sampling cylinder 1, cutting off and separating the columnar sample inside the sampling cylinder 1 from the sample source environment, creating an obvious boundary to reduce the attracting effect of the sample source environment on the columnar sample inside the sampling cylinder 1.

[0028] During the actual use of the device, the force application plate 4 pushes the transmission rod 3 and the connecting bracket 2 downward. The connecting bracket 2 pushes the sampling cylinder 1 downward to insert into the sediment layer for sample sampling. Due to the frictional force, the sample shedding baffle 581 on the rotating seat 582 flips upward and gets as close as possible to the inner wall of the sampling cylinder 1, facilitating the entry of the columnar sample into the sampling cylinder 1. Then, the motor 551 is started. The output shaft of the motor 551 drives the wire harness turntable 552 to rotate. The wire harness turntable 552 winds up the cutting wire rope 52, and the cutting wire rope 52 slides in the movement track 53 through the recovery port 54. The cutting wire rope 52 gradually comes out from the 4th position, 2nd position, and 3rd position. The cutting wire rope 52 breaks four plastic card wire groove buckles 571 respectively. At the same time, the cutting wire rope 52 breaks away from the wire laying groove 51 and finally comes out from the 1st position and enters the recovery port 54, cutting the columnar sample in the sampling cylinder 1 from the sediment. At the same time, the cutting wire rope 52 drives the bottom net 561 by pulling the wire rope 562, making the bottom net 561 gradually come out from the 4th position, 2nd position, and 3rd position and finally reach the 1st position, realizing the sample bottoming at the cutting opening of the columnar sample inside the sampling cylinder 1, preventing the columnar sample from quickly detaching from the inner side of the sampling cylinder 1, and thus realizing the entire sampling process.

[0029] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Columnar sample cutting and bottom-covering device for underwater sampler, characterized by: It comprises a cutting and bottoming mechanism (5) arranged on the sampling tube (1), which quickly cuts the columnar sample and performs bottoming after sampling; The cutting and bottom-covering mechanism (5) comprises a wire-releasing groove (51) provided on the inner wall of the bottom of the sampling tube (1), a cutting wire rope (52) arranged in the wire-releasing groove (51), a winding component (55) arranged on the sampling tube (1), and a bottom-covering component (56) installed on the wire-releasing groove (51); A moving track (53) is fixed on one side of the sampling tube (1), and the winding component (55) drives the cutting wire rope (52) to move from the wire-releasing groove (51) to the moving track (53) to cut the columnar sample. At the same time, the cutting wire rope (52) drives the bottom holding component (56) to hold the cut columnar sample.

2. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 1, characterized in that: The cutting bottom-protecting mechanism (5) further comprises a buckle component (57) disposed at the bottom of the sampling tube (1) for limiting the position of the cutting wire rope (52), wherein the buckle component (57) comprises a plurality of plastic wire-locking groove buckles (571) arranged in a circumferential array on the inner side of the bottom of the sampling tube, wherein one of the plastic wire-locking groove buckles (571) is located on one side of the recovery port (54) at the bottom of the motion track (53).

3. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 2, characterized in that: The upper and lower sides of the plastic clamping wire slot buckle (571) are respectively fixed with connecting blocks (572) by bolts, and the connecting blocks (572) are fixed to the inner wall of the sampling tube (1).

4. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 1, characterized in that: The bottom support component (56) comprises a bottom support net (561) arranged inside the wire release groove (51), and a pulling steel wire rope (562) fixed on the bottom support net (561) and fixed to the cutting steel wire rope (52).

5. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 1, characterized in that: The winding component (55) comprises a motor (551) fixed to the top of the sampling tube (1), a harness turntable (552) fixed to the output end of the motor (551), and the winding end at the top of the cutting wire rope (52) is fixed to the harness turntable (552).

6. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 1, characterized in that: An anti-falling component (58) for preventing the collected columnar sample from falling off is also provided on the inner side of the sampling barrel (1), and the anti-falling component (58) comprises a plurality of irregularly distributed falling blocking plates (581) provided on the inner wall of the sampling barrel (1).

7. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 6, characterized in that: One end of the fall-off preventing plate (581) is rotatably provided with a rotating seat (582) fixed to the sampling tube (1).

8. The columnar sample cutting and bottom-covering device for underwater samplers according to claim 1, characterized in that: A connecting bracket (2) is fixed to the top of the sampling cylinder (1), four rectangularly distributed transmission rods (3) are fixedly arranged on the top of the connecting bracket (2), and a force application plate (4) for connecting a hydraulic drive component is fixedly installed on the top of the four transmission rods (3).

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