CN114608888A - A deep water sample collection device for geographic research - Google Patents

Abstract

The invention relates to the technical field of water sample collecting devices, and discloses a deepwater water sample collecting device for geographic research, which comprises a barrel body, wherein an inner column is movably arranged in the barrel body, a mounting groove is formed at the top of the inner column, and an elastic element for overcoming water pressure within a certain range is arranged on the inner bottom wall of the mounting groove; when the deep water sampling device is used, the barrel body is gradually placed into water through the traction rope, after a certain depth is reached, the water pressure of the deep water is larger than the elastic force of the adjusting spring, so that the inner column gradually moves upwards in the barrel body, the adjusting spring is gradually compressed, and on the way that the inner column gradually moves upwards in the barrel body, the diversion groove and the water inlet hole are temporarily overlapped, so that the deep water can enter the water storage cavity through the water inlet hole and the diversion groove, and the collection of a deep water sample is completed; when deep water samples of different depths need to be collected, adjusting springs with different elastic forces are selected according to the water pressure at corresponding positions.

Description

A deep water sample collection device for geographic research

technical field

The invention relates to the technical field of water sample collection devices, in particular to a deep water water sample collection device used for geographic research.

Background technique

Geography is a discipline that studies the spatial distribution law, temporal evolution process and regional characteristics of spatial geographic elements or geographic complexes on the earth's surface. In geographical research, in order to fully understand the geographical environment of a region, water samples are often collected from deeper water bodies in the region, and the characteristics of deep water samples are used to reflect the geographical characteristics of the region;

For example, the Chinese patent publication number is: CN110186716B, which provides a high-fidelity deep water sample collection device, including a frame body, which is used for erecting at the wellhead of a monitoring well; a lifting device, which is installed on the frame body upper; sampling cylinder, the sampling cylinder includes a cylinder body, a sampling bottle and a cover assembly, the sampling bottle is installed in the cylinder body, the interior of which is filled with anti-oxidative gas, the side wall of the cylinder body is provided with a water inlet that communicates with the interior, and the cover assembly is arranged in the cylinder In the body, the lifting device is connected with the cylinder to drive the cylinder to move up and down; the cover-opening mechanism is installed on the frame and connected with the cover assembly to drive the cover assembly to move to open or block the inside. Water mouth and bottle mouth of sampling bottle; temperature detection device, which is installed in the cylinder. Advantages: Reasonable structure design, the sampling water in the whole sampling process does not come into contact with the air, which ensures the high fidelity of the water sample, makes the detection result true and reliable, and the temperature is measured in situ, which greatly reduces the measurement error.

Although the above-mentioned water sample collection device has the advantages of high fidelity and small measurement error, in actual use, we found that it still has certain shortcomings, such as:

The structure of the above-mentioned collection device is relatively complex, and two sets of winding devices need to be installed on the ground. At the same time, whether the above-mentioned collection device collects water samples requires manual control, and the degree of automation is low.

SUMMARY OF THE INVENTION

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the present invention provides a deep-water water sample collection device for geographic research, which has the advantages of simple structure, and can automatically collect water samples at a fixed depth.

(2) Technical solutions

In order to achieve the purpose of simple structure and the ability to automatically collect water samples at a fixed depth, the present invention provides the following technical solutions: a deep-water water sample collection device for geographic research, comprising a cylinder body, the top of which can be used to collect water samples. A cylinder cover is disassembled and installed, a traction rope is fixedly installed on the top of the cylinder cover, and the end of the traction rope is connected with a take-up and pay-out mechanism, an inner column is movably arranged inside the cylinder body, and the top of the inner column forms a There is an installation groove, and the inner bottom wall of the installation groove is provided with an elastic element for overcoming the water pressure within a certain range;

A water storage cavity is formed inside the inner column, and both sides of the top of the water storage cavity communicate with the outside of the inner column with water diversion grooves, and both sides of the outer wall of the cylinder are provided with water inlet holes. When the inner column moves upward in the cylinder under the action of deep water pressure, the water diversion groove can temporarily overlap with the water inlet hole during the movement.

As a preferred technical solution of the present invention, the cylinder cover is screwed on the outer wall of the top of the cylinder body, and the top end of the elastic element abuts on the inner top wall of the cylinder cover.

As a preferred technical solution of the present invention, the elastic element is an adjusting spring, the bottom end of the adjusting spring is pressed against the inner bottom wall of the installation groove, and the top end is pressed against the inner top wall of the cylinder cover.

As a preferred technical solution of the present invention, a stopper is fixedly installed at the bottom of the inner wall of the cylinder to limit the lowest position of the inner column; below the water hole.

As a preferred technical solution of the present invention, a clamping groove is formed on the top of the outer wall of the inner column, a side cylinder is fixedly installed on the outer wall of the cylinder, and a locking mechanism is arranged between the side cylinder and the clamping groove. When the inner column moves up in the cylinder under the action of deep water pressure, the position of the inner column in the cylinder can be locked by using the clamping groove.

As a preferred technical solution of the present invention, the locking mechanism includes a clamping block, a pressure plate, a pull rod, a pull button and a first spring, a cylinder cavity is formed inside the side cylinder, and a pressure plate is movably arranged in the cylinder cavity, A clamping block is fixedly installed on the side of the pressing plate facing the inner column, and the clamping block is movably clamped in the clamping slot;

A pull rod is fixedly installed on the side of the pressure plate facing away from the inner column, and the end of the pull rod extends to the outside of the side cylinder and is fixedly installed with a pull button. It is fixedly connected between the outer wall of the pressing plate and the inner side wall of the side cylinder.

As a preferred technical solution of the present invention, the top wall of the card slot is a plane, the bottom wall is an inclined plane, the top of the clamping block is a plane, and the sides are inclined planes.

As a preferred technical solution of the present invention, a screw rod is threadedly connected to the center of the inner bottom wall of the water storage cavity, a sealing plate is fixedly installed on the top of the screw rod, and the sealing plate is movably arranged in the water storage cavity , a knob is fixedly installed at the bottom of the screw rod;

Drainage holes are evenly opened at the edge of the inner bottom wall of the water storage cavity.

As a preferred technical solution of the present invention, the bottom of the cylinder is also fixedly connected to a base cabinet through a bottom rod, and a rack is fixedly installed at the edge of the bottom of the inner column, and the rack is inserted through the interior of the base cabinet ;

The outer wall of the rack is meshed with gears, the gears are rotatably arranged on the inner wall of the base cabinet through the first rotating shaft, the gears are coaxially and fixedly installed with a driving wheel, and the driving wheel is connected with a driven wheel through a synchronous belt, The driven wheel is rotatably arranged on the inner wall of the base cabinet through the second rotating shaft;

A rotating wheel is also fixedly installed on the outer wall of the second rotating shaft, and several sampling boxes are evenly arranged on the outer wall of the rotating wheel.

As a preferred technical solution of the present invention, a conical block is movably arranged on the sampling box, the thicker end of the conical block is movably arranged outside the sampling box, and the thinner end of the conical block is movably arranged Inside the sampling box, a second spring is also fixedly connected between the thinner end of the conical block and the inner wall of the sampling box;

A strong magnetic column is fixedly installed on the inner bottom wall of the bottom cabinet. When the sampling box passes through the strong magnetic column, the cone block will move towards the strong magnetic column under the action of the magnetic force.

(3) Beneficial effects

Compared with the prior art, the present invention provides a deep-water water sample collection device for geographic research, which has the following beneficial effects:

1. The deep-water water sample collection device for geographic research can be used by gradually putting the cylinder into the water through the traction rope. After reaching a certain depth, the water pressure of the deep-water is greater than the elastic force of the adjustment spring, so that the inner column is Gradually move upward in the cylinder, at this time the adjusting spring is gradually compressed, and the inner column gradually moves upward in the cylinder, the water diversion groove will briefly overlap with the water inlet hole, so that deep water can pass through the water inlet hole and the diversion hole. The water tank enters the water storage cavity to complete the automatic collection of deep water samples.

2. The deep-water water sample collection device used for geographical research needs to collect deep-water water samples of different depths. According to the water pressure at the corresponding position, the adjustment springs with different elastic sizes can be selected, and the adjustment can be adjusted by unscrewing the cylinder cover. It is very convenient to replace the spring.

3. The deep water sample collection device for geographic research, after the deep water enters the water storage cavity through the water inlet and the water diversion groove, the inner column continues to move upward in the cylinder, and the inner column will squeeze on the way to continue moving upward. The block is retracted inward, and the first spring is compressed. When the position of the card slot corresponds to the position of the block, the block will be re-extended under the elastic force of the first spring when the block loses its resistance. , stuck in the slot, so that the position of the inner column can be locked, preventing the inner column from falling backward when the cylinder is lifted, and the water sample can be effectively kept in the water storage cavity to isolate the interference of the external environment.

4. In this deep-water water sample collection device for geographic research, when the inner column gradually moves upward in the cylinder, it will also drive the rack to move upward gradually, and the gradual upward movement of the rack drives the gear meshing with its outer wall to rotate, and the gear rotates. The driving wheel and the synchronous belt can drive the driven wheel to rotate, and the driven wheel can rotate through the second rotating shaft to drive the rotating wheel to rotate. When the rotating wheel rotates, the sampling boxes arranged on the outer wall of the rotating wheel are successively close to the strong magnetic column. Attractive, you can open the sampling boxes that are close to each other one by one, and use the sampling boxes to sample the water bodies before and after the water storage cavity to form a control group, which is more convenient for the study of deep water water quality and geography, and the results are more accurate.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the overall structure of the present invention;

Fig. 2 is the sectional view of the overall structure of the present invention;

Fig. 3 is the enlarged schematic diagram of the inner column part of the present invention;

Fig. 4 is the sectional view of the side barrel part of the present invention;

Fig. 5 is the front sectional view of the overall structure of the present invention;

Fig. 6 is the enlarged schematic diagram of the base cabinet part of the present invention;

Fig. 7 is the sectional view of the base cabinet part of the present invention;

Fig. 8 is the enlarged schematic diagram of the rotating wheel part of the present invention;

FIG. 9 is an enlarged schematic view of a part of the sampling box of the present invention.

In the figure: 1. Cylinder body; 2. Cylinder cover; 3. Traction rope; 4. Inner column; 5. Installation groove; 6. Adjusting spring; 7. Water storage cavity; 10, block; 11, card slot; 12, side cylinder; 13, block; 14, pressure plate; 15, cylinder cavity; 16, pull rod; 17, pull button; 18, first spring; 19, drain hole; 20 , sealing plate; 21, screw; 22, knob; 23, bottom rod; 24, bottom cabinet; 25, rack; 26, gear; 27, driving wheel; 28, timing belt; 29, driven wheel; 30, rotation wheel; 31, sampling box; 32, cone block; 33, second spring; 34, strong magnetic column.

Detailed ways

Example 1:

Please refer to Fig. 1-Fig. 5, a deep-water water sample collection device for geographic research, including a cylinder body 1, a cylinder cover 2 is detachably installed on the top of the cylinder body 1, in this embodiment, the cylinder cover 2 is threadedly connected On the outer wall of the top of the cylinder body 1, it is convenient for the installation and removal of the cylinder cover 2;

The top of the cylinder cover 2 is fixedly installed with a traction rope 3, and the end of the traction rope 3 is connected with a take-up and pay-off mechanism. The water body is sampled, and in this embodiment, the take-up and pay-off mechanism is a winding wheel, etc.;

As shown in FIG. 2 , an inner column 4 is movably arranged inside the cylinder body 1 , a mounting groove 5 is formed on the top of the inner column 4 , and an elastic element for overcoming the water pressure within a certain range is provided on the inner bottom wall of the mounting groove 5 , In this embodiment, the elastic element is the adjustment spring 6, the bottom end of the adjustment spring 6 is against the inner bottom wall of the installation groove 5, and the top end is against the inner top wall of the cylinder cover 2. After the cylinder body 1 is put into the water, just The initial water pressure is lower than the elastic force of the adjustment spring 6, so that the inner column 4 remains stationary in the cylinder body 1, and after reaching a certain depth, the water pressure is greater than the elastic force of the adjustment spring 6, so that the inner column 4 can move upward in the cylinder body 1;

In this embodiment, a water storage cavity 7 is formed inside the inner column 4 , and water diversion grooves 8 are formed on both sides of the top of the water storage cavity 7 and the outside of the inner column 4 . The water hole 9, when the inner column 4 moves up in the cylinder 1 under the action of deep water pressure, the water diversion groove 8 can temporarily overlap with the water inlet hole 9 during the movement;

When in use, the cylinder body 1 can be gradually put into the water through the traction rope 3. After reaching a certain depth, the water pressure of the deep water is greater than the elastic force of the adjustment spring 6, so that the inner column 4 gradually moves upward in the cylinder body 1. At this time, The adjusting spring 6 is gradually compressed, and the inner column 4 is gradually moving upward in the cylinder 1. The water diversion groove 8 will overlap with the water inlet hole 9 for a short time, so that deep water can pass through the water inlet hole 9 and the water diversion groove 8 at this time. Enter the water storage chamber 7 to complete the automatic collection of deep water samples;

When deep water samples of different depths need to be collected, the adjustment spring 6 with different elastic force can be selected according to the water pressure at the corresponding position. The adjustment spring 6 can be replaced by unscrewing the cylinder cover 2, which is very convenient to operate. In the embodiment, there is no need to set up vulnerable electrical devices such as water level sensors, and it is only necessary to select an appropriate adjusting spring 6 according to the water pressure;

The relationship between the water pressure and the adjustment spring 6 can be obtained directly through experiments and calculations, so the specific numerical relationship between the water pressure and the adjustment spring 6 will not be repeated in this embodiment;

As shown in FIG. 2 , a stopper 10 is fixedly installed at the bottom of the inner wall of the cylinder body 1 , which can limit the lowest position of the inner column 4 and prevent the inner column 4 from detaching from the cylinder body 1 ;

As shown in FIG. 5 , when the bottom end of the inner column 4 is in close contact with the stopper 10, the water diversion groove 8 is located below the water inlet hole 9, and the water body cannot enter the water diversion groove 8 through the water inlet hole 9 at this time;

A clamping slot 11 is formed on the top of the outer wall of the inner column 4, a side cylinder 12 is fixedly installed on the outer wall of the cylinder body 1, and a locking mechanism is arranged between the side cylinder 12 and the clamping slot 11. When the inner column 4 is under the action of deep water pressure When the cylinder body 1 is moved upwards, the position of the inner column 4 in the cylinder body 1 can be locked by using the card slot 11 . A spring 18, a cylinder cavity 15 is formed inside the side cylinder 12, a pressure plate 14 is movably arranged in the cylinder cavity 15, a clamping block 13 is fixedly installed on the side of the pressure plate 14 facing the inner column 4, and the clamping block 13 is movably clamped in the clamping slot 11 Inside;

A pull rod 16 is fixedly installed on the side of the pressure plate 14 facing away from the inner column 4 . The end of the pull rod 16 extends to the outside of the side cylinder 12 and is fixedly installed with a pull button 17 . 18 is fixedly connected between the outer wall of the pressing plate 14 and the inner side wall of the side cylinder 12. As shown in Figure 4, the top wall of the card slot 11 is a plane, the bottom wall is an inclined plane, the top of the clamping block 13 is a plane, and the sides are inclined planes ;

After the deep water enters the water storage chamber 7 through the water inlet hole 9 and the water diversion groove 8 (that is, after the sampling is completed), the inner column 4 continues to move upward in the cylinder 1 under the action of water pressure. 4. The clamping block 13 will be squeezed to retract the clamping block 13 inward. At this time, the first spring 18 is compressed. When the position of the clamping slot 11 corresponds to the position of the clamping block 13, the clamping block 13 will lose its blocking and will Under the action of the elastic force of the first spring 18, the first spring 18 re-extends and gets stuck in the card slot 11, so that the position of the inner column 4 can be locked, preventing the inner column 4 from descending in reverse when the cylinder body 1 is lifted, and the water sample can be effectively retained in the In the water storage cavity 7, the interference of the external environment is isolated, which is beneficial to the accuracy of the later water body detection;

As shown in FIG. 3 , a screw rod 21 is threadedly connected to the center of the inner bottom wall of the water storage chamber 7 , and a sealing plate 20 is fixedly installed on the top of the screw rod 21 . The sealing plate 20 is movably arranged in the water storage chamber 7 , and the screw rod 21 A knob 22 is fixedly installed at the bottom of the water storage cavity 7, and a drain hole 19 is evenly opened at the edge of the inner bottom wall of the water storage cavity 7;

Under normal conditions, the sealing plate 20 can block the drainage hole 19, so that the water sample in the water storage chamber 7 cannot be discharged. It can be separated from the inner bottom wall of the water storage chamber 7, and the water sample in the water storage chamber 7 can be discharged through the drain hole 19;

The pull button 17 pulls the pull rod 16 to disengage the pressure plate 14 and the clamping block 13 from the clamping slot 11 , the locking of the inner column 4 can be released, and the inner column 4 can return to its original position under the action of the adjusting spring 6 .

Embodiment 2:

Please refer to FIGS. 6 to 9 , the bottom of the cylinder 1 is also fixedly connected with a base cabinet 24 through the bottom rod 23 , and a rack 25 is fixedly installed at the edge of the bottom of the inner column 4 , and the rack 25 is inserted into the interior of the base cabinet 24 . The outer wall of the rack 25 is meshed with a gear 26, and the gear 26 is rotatably arranged on the inner wall of the base cabinet 24 through the first rotating shaft. , the driven wheel 29 is rotated and arranged on the inner wall of the bottom cabinet 24 through the second rotating shaft, the outer wall of the second rotating shaft is also fixedly installed with a rotating wheel 30, and the outer wall of the rotating wheel 30 is evenly provided with a number of sampling boxes 31;

A strong magnetic column 34 is fixedly installed on the inner bottom wall of the bottom cabinet 24. When the sampling box 31 passes through the strong magnetic column 34, the conical block 32 will move towards the strong magnetic column 34 under the action of the magnetic force;

When the inner column 4 gradually moves upward in the cylinder body 1, it also drives the rack 25 to move upward gradually, and the rack 25 gradually moves upward to drive the gear 26 engaged with its outer wall to rotate, and the gear 26 rotates through the driving wheel 27 and the timing belt 28. The driven wheel 29 can be driven to rotate, and the driven wheel 29 can rotate through the second rotating shaft to drive the rotating wheel 30 to rotate. When the rotating wheel 30 rotates, the sampling box 31 provided on its outer wall is successively close to the strong magnetic column 34, so that the strong magnetic column 34 is used. Attractiveness, can open the sampling boxes 31 that are close one by one, and use the sampling boxes 31 to sample the water bodies before and after the water storage chamber 7 to form a control group, which is more convenient for the research of deep water water quality and geography, and the results are more accurate;

As shown in FIG. 9 , a conical block 32 is movably arranged on the sampling box 31 , the thicker end of the conical block 32 is movably arranged outside the sampling box 31 , and the thinner end of the conical block 32 is movably arranged on the outer side of the sampling box 31 . Inside, a second spring 33 is also fixedly connected between the thinner end of the conical block 32 and the inner wall of the sampling box 31. Under normal conditions, the conical block 32 is blocked by the pulling force of the second spring 33 and the water pressure. At the opening of the sampling box 31, the water from the outside cannot enter the sampling box 31. When the sampling box 31 passes through the strong magnetic column 34, the tapered block 32 can be moved toward the strong magnetic column 34 by the attractive force of the strong magnetic column 34. Thus, the opening of the sampling box 31 is opened, and the external water body can enter the sampling box 31 through the gap between the opening and the conical block 32, and the water body is sampled to obtain several control water samples.

The working principle of the present invention and the use flow:

When in use, the cylinder body 1 can be gradually put into the water through the traction rope 3. After reaching a certain depth, the water pressure of the deep water is greater than the elastic force of the adjustment spring 6, so that the inner column 4 gradually moves upward in the cylinder body 1. At this time, The adjusting spring 6 is gradually compressed, and the inner column 4 is gradually moving upward in the cylinder 1. The water diversion groove 8 will overlap with the water inlet hole 9 for a short time, so that deep water can pass through the water inlet hole 9 and the water diversion groove 8 at this time. Enter the water storage chamber 7 to complete the automatic collection of deep water samples;

When deep water samples of different depths need to be collected, the adjustment springs 6 with different elastic forces can be selected according to the water pressure at the corresponding position, and the adjustment springs 6 can be replaced by unscrewing the cylinder cover 2, which is very convenient to operate;

After the deep water enters the water storage cavity 7 through the water inlet hole 9 and the water diversion groove 8, the inner column 4 continues to move upward in the cylinder 1. During the continuous upward movement, the inner column 4 will squeeze the blocking block 13, so that the blocking block 13 Retract inward, at this time the first spring 18 is compressed, when the position of the card slot 11 corresponds to the position of the card block 13, the card block 13 loses its blocking and will re-extend under the elastic force of the first spring 18, It is stuck in the card slot 11, so that the position of the inner column 4 can be locked, and the inner column 4 can be prevented from falling backward when the cylinder body 1 is lifted, and the water sample can be effectively kept in the water storage cavity 7, and the interference of the external environment can be isolated;

When the inner column 4 gradually moves upward in the cylinder body 1, it also drives the rack 25 to move upward gradually, and the rack 25 gradually moves upward to drive the gear 26 engaged with its outer wall to rotate, and the gear 26 rotates through the driving wheel 27 and the timing belt 28. The driven wheel 29 can be driven to rotate, and the driven wheel 29 can rotate through the second rotating shaft to drive the rotating wheel 30 to rotate. When the rotating wheel 30 rotates, the sampling box 31 provided on its outer wall is successively close to the strong magnetic column 34, so that the strong magnetic column 34 is used. Attractiveness, can open the sampling boxes 31 that are close to each other one by one, and use the sampling boxes 31 to sample the water bodies before and after the water storage chamber 7 to form a control group, which is more convenient for the study of deep water water quality and geography, and the results are more accurate.

Claims (10)

1. The utility model provides a deep water sample collection system for geographical research, includes barrel (1), the top demountable installation of barrel (1) has cover (2), the top fixed mounting of cover (2) has haulage rope (3), the end-to-end connection of haulage rope (3) has pay off mechanism, its characterized in that: an inner column (4) is movably arranged in the barrel body (1), a mounting groove (5) is formed at the top of the inner column (4), and an elastic element for overcoming water pressure within a certain range is arranged on the inner bottom wall of the mounting groove (5);

the inner column is characterized in that a water storage cavity (7) is formed inside the inner column (4), water guide grooves (8) are formed in the two sides of the top of the water storage cavity (7) and the outer portion of the inner column (4) in a penetrating mode, water inlet holes (9) are formed in the two sides of the outer wall of the barrel body (1), and when the inner column (4) moves upwards in the barrel body (1) under the action of deep water pressure, the water guide grooves (8) can be coincided with the water inlet holes (9) temporarily in the moving process.

2. The deep water sample collection device for the geographic research according to claim 1, wherein: the barrel cover (2) is in threaded connection with the outer wall of the top of the barrel body (1), and the top end of the elastic element abuts against the inner top wall of the barrel cover (2).

3. The deep water sample collection device for the geographic research according to claim 1, wherein: the elastic element is an adjusting spring (6), the bottom end of the adjusting spring (6) is abutted against the inner bottom wall of the mounting groove (5), and the top end of the adjusting spring is abutted against the inner top wall of the barrel cover (2).

4. The deep water sample collection device for the geographic research according to claim 1, wherein: the bottom of the inner wall of the cylinder body (1) is fixedly provided with a stop block (10) for limiting the lowest position of the inner column (4); when the bottom end of the inner column (4) is tightly attached to the stop block (10), the water guide groove (8) is positioned below the water inlet hole (9).

5. The deep water sample collection device for the geographic research according to claim 1, wherein: the top of the outer wall of the inner column (4) is provided with a clamping groove (11), the outer wall of the barrel body (1) is fixedly provided with a side barrel (12), and a locking mechanism is arranged between the side barrel (12) and the clamping groove (11), so that when the inner column (4) moves upwards in the barrel body (1) under the action of deep water pressure, the position of the inner column (4) in the barrel body (1) can be locked by the clamping groove (11).

6. The deep water sample collection device for the geographic research according to claim 5, wherein: the locking mechanism comprises a clamping block (13), a pressing plate (14), a pull rod (16), a pull button (17) and a first spring (18), a barrel cavity (15) is formed inside the side barrel (12), the pressing plate (14) is movably arranged in the barrel cavity (15), the clamping block (13) is fixedly installed on one side, facing the inner column (4), of the pressing plate (14), and the clamping block (13) is movably clamped in the clamping groove (11);

one side fixed mounting of clamp plate (14) inner prop (4) dorsad has pull rod (16), the end of pull rod (16) extends to outside and fixed mounting of a side section of thick bamboo (12) has pull button (17), it is equipped with first spring (18) still to overlap on pull rod (16), first spring (18) fixed connection is between the outer wall of clamp plate (14) and the inside wall of a side section of thick bamboo (12).

7. The deep water sample collection device for the geographic research according to claim 6, wherein: the top wall of the clamping groove (11) is a plane, the bottom wall of the clamping groove is an inclined plane, the top of the clamping block (13) is a plane, and the side edge of the clamping block is an inclined plane.

8. The deep water sample collection device for the geographic research according to claim 1, wherein: a screw rod (21) is connected to the center of the inner bottom wall of the water storage cavity (7) in a threaded manner, a sealing plate (20) is fixedly mounted at the top of the screw rod (21), the sealing plate (20) is movably arranged in the water storage cavity (7), and a knob (22) is fixedly mounted at the bottom of the screw rod (21);

and drain holes (19) are uniformly formed in the edge of the inner bottom wall of the water storage cavity (7).

9. The deep water sample collection device for the geographic research according to claim 1, wherein: the bottom of the barrel body (1) is also fixedly connected with a bottom cabinet (24) through a bottom rod (23), a rack (25) is fixedly installed at the edge of the bottom of the inner column (4), and the rack (25) is inserted into the bottom cabinet (24);

a gear (26) is meshed with the outer wall of the rack (25), the gear (26) is rotatably arranged on the inner wall of the bottom cabinet (24) through a first rotating shaft, a driving wheel (27) is coaxially and fixedly installed on the gear (26), the driving wheel (27) is connected with a driven wheel (29) through a synchronous belt (28), and the driven wheel (29) is rotatably arranged on the inner wall of the bottom cabinet (24) through a second rotating shaft;

the outer wall of second axis of rotation still fixed mounting has and rotates wheel (30), the outer wall that rotates wheel (30) evenly is provided with a plurality of sample box (31).

10. The deep water sample collection device for geographic research as claimed in claim 9, wherein: the sampling box (31) is movably provided with a conical block (32), the thicker end of the conical block (32) is movably arranged outside the sampling box (31), the thinner end of the conical block (32) is movably arranged inside the sampling box (31), and a second spring (33) is fixedly connected between the thinner end of the conical block (32) and the inner wall of the sampling box (31);

the inner bottom wall of the bottom cabinet (24) is fixedly provided with a strong magnetic column (34), and when the sampling box (31) approaches the strong magnetic column (34), the conical block (32) can move towards the strong magnetic column (34) under the action of magnetic force.

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