CN209764495U - Deepwater sampling device - Google Patents

Abstract

The utility model discloses a deepwater sampling device, which relates to the field of groundwater sampling and aims to solve the problem that a traditional Beller tube cannot take deep water samples, and the technical scheme is characterized in that the deepwater sampling device comprises a tube body for storing sample water, wherein the outer side wall of the tube body is provided with a water inlet hole for the sample water to enter the tube body, and the outer side wall of the tube body is provided with a sealing device for controlling the opening and closing of the water inlet hole; be provided with the counter weight device that makes it sink to the water on the body, be provided with the pulling device that stimulates the body on the body, the utility model discloses the effect of taking out the deep water sample in underground has been reached.

Description

Deepwater sampling device

Technical Field

The utility model belongs to the technical field of the technique that groundwater detected and specifically relates to a deep water sampling device is related to.

Background

Groundwater, is water stored in the voids of the formation, including rock pores, fractures and vugs, below the gas-filled zone. Groundwater is an important component of water resources, however, in recent years, under the action of various pollution sources, shallow groundwater in China is seriously polluted and the pollution speed is high. Groundwater pollution mainly refers to the phenomenon that quality of groundwater is reduced due to changes in chemical components, physical properties and biological characteristics of groundwater caused by human activities. Because the stratum under the surface of the earth is complex and the groundwater flows very slowly, the groundwater pollution has the characteristics of slow process, difficult discovery and difficult treatment. Once the ground water is polluted, even if the pollution source is completely eliminated, the water quality can be recovered for more than ten years or even several decades.

The prior chinese patent with granted publication No. CN207336126U discloses an improved beller tube, which is mainly used for measuring water level in wells, drill holes and water level tubes, and is particularly suitable for environment detection, environment investigation and observation of underground water level in hydropower engineering or manual inspection of dam body infiltration lines of earth and stone dams. The bailer tube comprises a main body, a lifting rope and a check ball, wherein the main body of the bailer tube is formed by sequentially connecting one or more hollow tubes, the lifting rope is connected in the hollow tubes through a lifting rope connecting piece, a valve seat matched with the check ball is arranged in the lower end of each hollow tube, a through hole is formed in the valve seat, the check ball is movably connected to the through hole on the valve seat, and an ejection rod is further arranged on the lifting rope connecting piece.

The above prior art solutions have the following drawbacks: the existing Bell tube comprises a tube body, the top end of the tube body is sealed, a water inlet is formed in the bottom end of the tube body, a check ball is arranged at the water inlet in the tube body, when the Bell tube enters a water body, the check ball can jack up the Bell tube by the water body to start entering the water, so that the Bell tube cannot take a water sample of an underground deep water body, and the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a deep water sampling device, it has the effect of taking out the deep water sample in underground.

In order to achieve the above purpose, the utility model provides a following technical scheme:

The deepwater sampling device comprises a pipe body for storing sample water, wherein two ends of the pipe body are arranged in a closed manner, the outer side wall of the pipe body is provided with a water inlet hole for the sample water to enter the pipe body, and the outer side wall of the pipe body is provided with a sealing device for controlling the opening and closing of the water inlet hole;

The water-saving device is characterized in that a counterweight device which enables the pipe body to sink into water is detachably arranged on the pipe body, and a lifting device which pulls the pipe body in the water body is detachably arranged on the pipe body.

Through adopting above-mentioned technical scheme, when the water sample of deep groundwater needs to be taken out, operating personnel need hang counter weight device earlier at the body diapire, then slowly put into the water that the underground was waited to detect through draw gear with the body, treat that the body sinks in the appointed water layer after, operating personnel opens sealing device, the sample water in this water layer can enter into the body through the inlet opening this moment, then the sealing device of controlling again plugs up the inlet opening, propose the body from the water at last again, thereby play the effect of taking out the sample water in deep groundwater.

Furthermore, the pipe body comprises a limiting part, the pipe diameter of the limiting part is smaller than that of the pipe body, a conical plug plate is arranged at one end of the limiting part, and the water inlet hole is formed in the plug plate; the sealing device comprises a sealing ring plate which is arranged on the limiting part in a sliding mode, a sealing plate which is sealed on the water inlet hole is arranged on the end face, close to the plug plate, of the sealing ring plate, and a sealing pad is arranged on the inner side wall of the sealing plate; the terminal surface that the shrouding was kept away from to the seal ring board is provided with the conflict spring, the conflict spring housing is established at spacing portion lateral wall, the seal ring board lateral wall is provided with the stay cord that drives the seal ring board and slide from top to bottom in spacing portion.

Through adopting above-mentioned technical scheme, the body is when aquatic needs start-up sealing device, as long as operating personnel carries the lifting rope, the lifting rope drives the seal ring board and upwards removes in spacing portion, the shrouding leaves the cock board this moment, the inlet opening on the cock board is open mode, after water in the body is filled, operating personnel is as long as release the lifting rope, the conflict spring can drive the seal ring board and remove to the cock board orientation, the shrouding can be laminated on the cock board and plug up the inlet opening this moment, simultaneously sealed pad can plug up the clearance between cock board and the shrouding, thereby play the effect that the operation inlet opening opened and shut under water in the deep layer.

Further, the inlet opening has a plurality ofly around plug plate center pin homogeneous portion, the position that body lateral wall meets the plug plate is provided with the buffering crown plate, the buffering crown plate sets up around the shrouding.

through adopting above-mentioned technical scheme, a plurality of single inlet openings of comparing are seted up to the inlet opening, the body of a plurality of inlet openings, the rate of intaking of body can increase fast to improve the efficiency that the body collected sample water, including the buffering crown plate can wrap up the shrouding, then the in-process of body whereabouts, water can not the direct impact shrouding, thereby play the effect that improves the leakproofness between shrouding and the cock block.

Further, the position that sealed pad corresponds the inlet opening is provided with fills in the downthehole sealed arch of inlet opening, the inlet opening is the chamfer setting in to the body, the position of body lateral wall spacing portion of bordering on is provided with and prevents that the sealed crown plate from rotating the limit piece.

through adopting above-mentioned technical scheme, when the shrouding laminating is on the cock board, in the inlet port can be filled in to sealed arch, the inlet port is the chamfer setting in to the pipe body moreover, after the inlet port was filled in to sealed arch this moment, the sealed area of sealed arch and inlet port can be increased to play the effect that further improves the inlet port leakproofness, the stopper changes the piece and can prevent that sealed crown plate from taking place to rotate around spacing portion, and then plays the effect that prevents sealed arch and apopore dislocation.

further, the counter weight device is including setting up the balancing weight in the body bottom, the balancing weight is the toper setting, balancing weight toper lateral wall has a plurality of holes of permeating water around balancing weight center pin equipartition.

Through adopting above-mentioned technical scheme, the bottom at the body can improve the weight of body is fixed to the balancing weight, the ascending buoyancy of body in the water can be overcome to the gravity of balancing weight, thereby play the effect with the body submerged, the toper outward appearance of balancing weight can reduce the balancing weight buoyancy of the in-process that sinks, the hole of permeating water on the balancing weight also can further reduce the buoyancy that the balancing weight sinks the in-process and receives in addition, and then play and reduce the balancing weight and sink the effect that in-process self received the buoyancy.

Further, be provided with the connecting cylinder on the balancing weight, the one end that the balancing weight was kept away from to the connecting cylinder inside wall is provided with the fixture block, the body is close to the terminal surface of balancing weight and is provided with the cardboard of lock fixture block, be provided with the standing groove of placing the fixture block on the cardboard.

Through adopting above-mentioned technical scheme, the body has got the sample water back at every turn moreover, in order to prevent that the sample is polluted next time, the body all is disposable, therefore the balancing weight is together fixed with the cooperation mode of fixture block and cardboard, and when the body used once after needing recovery processing, can pull down the balancing weight and reserve next use to play the effect of reuse balancing weight many times.

Furthermore, the lifting device comprises a lifting pipe arranged on the top wall of the pipe body, a climbing buckle fixed at the top of the pipe body is arranged at one end, close to the pipe body, of the lifting pipe, a penetrating hole for the lifting rope to penetrate out is formed in one end, close to the pipe body, of the outer side wall of the pipe body, and the lifting rope penetrates through the penetrating hole along the length direction of the lifting pipe.

Through adopting above-mentioned technical scheme, the body sinks behind the deep water layer, always need to live body position control, but the body sinks behind the deep water layer, the lifting rope of control seal ring board can take place to tie a knot with the rope of control body, in order to solve this problem, the rope of controlling the body is changed into the lifting pipe, then penetrate the lifting rope into the body, lifting rope and lifting pipe are under the condition that can normally work this moment, still can not produce the risk of tying, and the lifting pipe length of preparing at every turn is very long, can not be for controlling the lifting rope, all follow the one end control lifting rope of lifting pipe at every turn, consequently, set up a plurality of lifting holes that supply operating personnel to control the lifting rope at the lateral wall of lifting pipe, thereby play the effect of convenient operation lifting rope in lifting pipe, and then play the effect that the convenience was controlled the body and was intake and sealed in deep water.

Furthermore, a plurality of lifting holes are uniformly distributed in the lifting pipe along the length direction of the lifting pipe, a plurality of holding knots are arranged on the lifting rope corresponding to the lifting holes, a limiting rope is arranged at one end, close to the pipe body, of the outer side wall of the lifting pipe, the other end of the limiting rope is fixed on the lifting rope, and the length of the limiting rope is smaller than the distance between every two adjacent lifting holes.

Through adopting above-mentioned technical scheme, the knot of holding corresponds the draw hole setting, in order not to let the operation of lifting rope, makes the knot of holding and draws the hole dislocation too much, and operating personnel has set up spacing rope at the pipe barrel lateral wall, and the operating space of lifting rope can be restricted to spacing rope to play and prevent the knot of holding and draw the too many effect of hole dislocation.

further, the body lateral wall is provided with the gliding direction clamp of messenger's lifting rope along the body lateral wall, the direction clamp is along body length direction equipartition.

Through adopting above-mentioned technical scheme, the direction clamp can prevent that clamp and body self from taking place the winding, and then plays the effect of further protection lifting rope.

further, the one end that the body lateral wall is close to the balancing weight is provided with the flexible intake pipe of intercommunication body, the body lateral wall is provided with the elastic clamp of sealed intake pipe, the elastic clamp is including articulating the flexure strip at the body lateral wall, the flexure strip is kept away from its articulated department one end and is provided with the fixed hook, the body lateral wall is provided with the cassette tape, the cassette tape all has a plurality of draw-in grooves that supply the fixed hook to block along its length direction.

Through adopting above-mentioned technical scheme, before the intake pipe followed the body and sinks into the water, operating personnel can with the intake pipe clamp to between body lateral wall and the flexure strip, during the intake pipe that makes was a sealed body and sinks into the water, the body of waiting to get full sample water was pulled up the back, operating personnel as long as take out the intake pipe in the flexure strip can put out the internal sample water of pipe to play the effect of conveniently taking out the internal sample water of pipe.

To sum up, the utility model discloses a beneficial technological effect does:

1. The sealing ring plate, the limiting part, the abutting spring and the sealing gasket are adopted, so that the effect of sealing the water inlet hole on the pipe body is achieved;

2. The counterweight, the connecting cylinder, the fixture block, the clamping plate and the placing groove are adopted, so that the effect of sinking the pipe body into water is achieved;

3. The lifting pipe and the climbing buckle are adopted, so that the effect of lifting the pipe body out of the water body is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

Fig. 2 is a schematic view of an explosion structure at the sealing device of the present invention;

FIG. 3 is a schematic structural view of a middle lifting device according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

Fig. 5 is a schematic view of an explosion structure at the counterweight device of the present invention;

FIG. 6 is a schematic cross-sectional view of the elastic clip of the tube body according to the present invention;

Fig. 7 is an enlarged schematic view of a portion B in fig. 7.

In the figure, 1, a tube body; 11. a yielding groove; 12. a plug plate; 13. a limiting part; 14. a water inlet hole; 2. a water intake pipe; 21. an elastic clip; 22. an elastic sheet; 23. a fixed hook; 24. clamping a belt; 25. a card slot; 3. a counterweight device; 31. a balancing weight; 32. water permeable holes; 4. a placement groove; 41. a clamping block; 42. a connecting cylinder; 44. clamping a plate; 5. a pulling device; 51. lifting the tube; 52. inserting holes; 53. lifting and pulling the hole; 54. climbing buckles; 55. a limiting rope; 56. a guide clamp; 6. a sealing device; 61. lifting a rope; 611. a holding knot; 62. a seal ring plate; 63. closing the plate; 64. against the spring; 65. a gasket; 66. sealing the protrusion; 67. a rotation limiting block; 68. a sliding groove; 69. a buffer ring plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

referring to fig. 1, the deepwater sampling device disclosed by the present invention comprises a tube body 1, wherein the tube body 1 is a transparent acrylic tube, the inner diameter of the tube body 1 is four centimeters, two ends of the tube body 1 are arranged in a sealing manner, a water inlet 14 is arranged at the middle position of the tube body 1, a sealing device 6 for blocking the water inlet 14 is arranged at the position of the water inlet 14, a lifting rope 61 for controlling the opening and closing of the sealing device 6 is connected to the sealing device 6, a guide clamp 56 is evenly distributed on the outer side wall of the tube body 1 along the length direction thereof, the lifting rope 61 is arranged in the guide clamp 65 in a penetrating manner, the lifting rope 61 is made of a nylon rope with higher strength, a lifting device 5 for lifting the tube body 1 is detachably arranged at the top end of the tube body 1, the lifting device 5 comprises a lifting tube 51 for controlling the position of the tube body 1, the lifting tube 51 is made of a nylon tube with an inner diameter larger than or equal, make things convenient for operating personnel pull lifting rope 61 in lifting pipe 51 more, but the pipe diameter is big more the space occupation volume after lifting pipe 51 twines also big more, consequently in the in-service use process, choose for use moderate nylon tube can, the removable counter weight device 3 that is provided with body 1 and sinks in the water with body 1.

Referring to fig. 2, a position of the tube body 1 close to the bottom wall is provided with a limiting portion 13, the diameter of the limiting portion 13 is smaller than that of the tube body 1, one end of the limiting portion 13 close to the tube body 1 is provided with a plug plate 12, the plug plate 12 is arranged in a conical shape, the plug plate 12 is uniformly provided with a plurality of water inlet holes 14 around the central axis thereof, the limiting portion 13 is provided with a sealing ring plate 62 in a sliding manner, the end surface of the sealing ring plate 62 far away from the sealing plate 63 is provided with an abutting spring 64, the abutting spring 64 is sleeved on the limiting portion 13, one surface of the abutting spring 64 far away from the sealing ring plate 62 abuts on the tube body 1, the sealing ring plate 62 is abutted on the plug plate 12 by the abutting spring 64 in a normal state, the end surface of the sealing ring plate 62 close to the plug plate 12 is provided with a sealing plate 63, the inner side wall of the sealing plate 63 is consistent with the inclination and curvature of, a strip-shaped rotation limiting block 67 is arranged at the position where the pipe body 1 borders the limiting part 13, a sliding groove 68 for the rotation limiting block 67 to slide up and down is arranged on the inner side wall of the sealing ring plate 62, two ends of the cross section of the sealing ring plate 62 along the diameter direction are connected with the lifting rope 61, and then the lifting rope 61 is arranged in the lifting pipe 51 in a penetrating manner; when the pipe body 1 is manufactured, the pipe body 1 can be divided into two ends along the length direction, the whole pipe body 1 is divided into two parts from the end face of the abutting spring 64 abutting the pipe body 1, the pipe body 1 of the two parts is firstly subjected to injection molding respectively, then the sealing ring plate 62 and the abutting spring 64 are sequentially sleeved on the limiting part 13, and finally the pipe body 1 of the two parts is adhered together through the sealing waterproof glue, so that the whole pipe body can be manufactured and molded.

Referring to fig. 2, before the pipe body 1 sinks into the water body, the abutting spring 64 drives the closing plate 63 to be compacted on the plug plate 12, the sealing gasket 65 is abutted on the surface of the plug plate 12 under the action of the closing plate 63 and blocks the water inlet hole 14, as long as a gap exists between the sealing gasket 65 and the plug plate 12 due to the conical arrangement of the plug plate 12, the spring drives the closing plate 63 to move downwards, and the conical stress surface is compared with the plane, under the action of a single force application point, the conical surface can more uniformly compact the plug plate 12, and when the sealing plate 63 is compacted on the plug plate 12, the sealing protrusion 66 can be plugged into the water inlet hole 14; when the pipe body 1 is in a water body with a target depth, an operator pulls the lifting rope 61 to move the sealing ring plate 62 towards the top wall of the pipe body 1, the water inlet hole 14 is opened at the moment, a water sample in the water body can enter the pipe body 1, the time for taking full water of the pipe body 1 is estimated approximately according to the water inlet speed of the water inlet hole 14, the lifting rope 61 is released after the water in the pipe body 1 is filled under the estimation effect, then the sealing gasket 65 is compacted on the plug plate 12 again by abutting against the spring 64, and then the pipe body 1 filled with target sample water is lifted out of the water body; body 1 all will operate at the uniform velocity sinking and the in-process of pulling, the in-process water that body 1 sinks can produce the power of lifting to the clearance department between shrouding 63 and the cock board 12, thereby reduce the leakproofness of shrouding 63, in order to solve this problem, the position of cock board 12 is arranged to border on body 1, including buffering annular plate 69 can wrap up shrouding 63, the water just can not directly lift shrouding 63 this moment, must select to cross buffering annular plate 69 and just can flow in cock board 12 department, thereby play the effect that further improves the leakproofness of shrouding 63 and cock board 12 department.

Referring to fig. 3 and 4, a through hole 52 is provided at one end of the side wall of the pulling tube 51 close to the tube body 1, a pulling rope 61 penetrates into the pulling tube 51 along the through hole 52, a climbing buckle 54 is provided at one end of the pulling tube 51 close to the tube body 1, the climbing buckle 54 is fixed on the tube body 1, in order to facilitate a sampling person to control the depth of the tube body 1 in a water body, scales can be printed on the outer side wall of the pulling tube 51 and are arranged along the length direction of the tube body 1, pulling holes 53 are provided along the length direction of the side wall of the pulling tube 51, one pulling hole 53 is provided every twenty centimeters, a holding knot 611 is provided at the position of the pulling rope 61 corresponding to the pulling hole 53, a limiting rope 55 is provided at one end of the outer side wall of the pulling tube 51 close to the climbing buckle 54, the other end of the limiting rope 55 is fixed on the pulling rope 61, the length of the limiting rope 55 is smaller than the distance between adjacent pulling holes 53, after the tube body 1 reaches the target, the lifting rope 61 can be operated, and the pulling range of the lifting rope 61 is controlled by the length of the stopper rope 55 in order to prevent the operator from pulling the lifting rope 61 excessively.

referring to fig. 5, the counterweight device 3 includes a counterweight 31 disposed on the bottom wall of the tube body 1, a connecting cylinder 42 is disposed on the end surface of the counterweight 31 close to the connecting tube body 1, and a clamping block 41 is disposed on one side of the inner side wall of the connecting cylinder 42 close to the tube body 1; the bottom wall of the pipe body 1 is provided with a clamping plate 44, the clamping plate 44 is provided with an abdicating groove 11 for the fixture block 41 to pass through, and one surface of the clamping plate 44, which is far away from the balancing weight, is provided with a placing groove 4 for limiting the movement of the fixture block 41; the balancing weight 31 is arranged in a conical shape, four water permeable holes 32 are formed in the balancing weight 31, and water can seep out of the water permeable holes 32 in the sinking process of the balancing weight 31, so that the effect of reducing the buoyancy on the balancing weight 31 is achieved; before the pipe body 1 sinks into the water body, the clamping block 41 penetrates through the abdicating groove 11 and then the balancing weight is rotated to align the clamping block 41 to the placing groove 4, and the clamping block 41 is clamped into the placing groove 4, so that the effect of connecting the balancing weight to the pipe body is achieved.

Referring to fig. 6, the one end that 1 lateral wall of body is close to balancing weight 31 is provided with the intake pipe 2 of rubber material, intake pipe 2 intercommunication body 1, the one end that 1 lateral wall of body is close to balancing weight 31 is provided with the elasticity of cliping intake pipe 2 and presss from both sides 21, body 1 sinks the time with intake pipe 2 clamp in elasticity presss from both sides 21, need follow body 1 in take out the sample water as long as take out intake pipe 2 from elasticity press from both sides 21 can, thereby play the effect that the sample water in the convenient body 1 takes out.

Referring to fig. 6 and 7, the elastic clamp 21 includes that one end articulates the flexure strip 22 on body 1, the one end that articulated department was kept away from to flexure strip 22 is provided with fixed hook 23, the position that body 1 lateral wall corresponds fixed hook 23 sets up cassette tape 24, cassette tape 24 is provided with the draw-in groove 25 that supplies fixed hook 23 to buckle along its length direction, when intake pipe 2 needs to be sealed, operating personnel will press intake pipe 2 between flexure strip 22 and body 1 lateral wall, with intake pipe 2 compaction on body 1 can, and with fixed hook 23 buckle in the draw-in groove 25 that corresponds can.

The implementation principle of the embodiment is as follows: the diameter of body 1 is four centimetres, and the height is a meter, calculate the buoyancy that body 1 received through "f floats = rho liquid gv row" between six to eight newtons, balancing weight 31 sets up to the lead block, and weight is two kilograms, and gravity is twenty newtons and is greater than the buoyancy that body 1 received far away, when stretching on body 1, the internal water of body 1 adds the gravity stack of balancing weight 31 together, but the bearing limit of nylon tube is two hundred newtons, so can not appear the phenomenon that lifting pipe 51 was broken by the pulling, the elasticity of contradicting spring 64 will be less than twenty newtons in addition, can not drive body 1 and move up like this when operation lifting rope 61 in the water.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. A deepwater sampling device is characterized in that: the device comprises a pipe body (1) for storing sample water, wherein two ends of the pipe body (1) are arranged in a closed manner, a water inlet hole (14) for the sample water to enter the pipe body (1) is formed in the outer side wall of the pipe body (1), and a sealing device (6) for controlling the opening and closing of the water inlet hole (14) is arranged on the outer side wall of the pipe body (1);

the water-saving device is characterized in that a counterweight device (3) which enables the pipe body (1) to sink into water is detachably arranged on the pipe body (1), and a lifting device (5) which pulls the pipe body (1) in the water is detachably arranged on the pipe body (1).

2. The deepwater sampling device of claim 1, wherein: the pipe body (1) comprises a limiting part (13), the pipe diameter of the limiting part (13) is smaller than that of the pipe body (1), one end of the limiting part (13) is provided with a conical plug plate (12), and the water inlet hole (14) is formed in the plug plate (12); the sealing device (6) comprises a sealing ring plate (62) arranged on the limiting part (13) in a sliding mode, a sealing plate (63) sealed on the water inlet hole (14) is arranged on the end face, close to the plug plate (12), of the sealing ring plate (62), and a sealing gasket (65) is arranged on the inner side wall of the sealing plate (63); the terminal surface that shrouding (63) were kept away from in seal ring board (62) is provided with conflict spring (64), conflict spring (64) cover is established at spacing portion (13) lateral wall, seal ring board (62) lateral wall is provided with and drives seal ring board (62) gliding lifting rope (61) from top to bottom in spacing portion (13).

3. The deepwater sampling device of claim 2, wherein: the inlet opening (14) all have a plurality ofly around cock board (12) center pin portion, the position that body (1) lateral wall meets soil cock board (12) is provided with buffering crown plate (69), buffering crown plate (69) set up around shrouding (63).

4. The deepwater sampling device of claim 3, wherein: the position that sealed pad (65) correspond inlet opening (14) is provided with sealed protruding (66) of stuffing in inlet opening (14), inlet opening (14) are the chamfer setting in to body (1), the position of body (1) lateral wall bordering on spacing portion (13) is provided with prevents that sealed crown plate (62) from rotating rotation limit piece (67).

5. The deepwater sampling device of claim 1, wherein: counterweight device (3) is including setting up balancing weight (31) in body (1) bottom, balancing weight (31) are the toper setting, balancing weight (31) toper lateral wall has a plurality of holes (32) of permeating water around balancing weight (31) center pin equipartition.

6. The deepwater sampling device of claim 5, wherein: the pipe is characterized in that a connecting cylinder (42) is arranged on the balancing weight (31), a clamping block (41) is arranged at one end, far away from the balancing weight (31), of the inner side wall of the connecting cylinder (42), a clamping plate (44) for buckling the clamping block is arranged on the end face, close to the balancing weight, of the pipe body, and a placing groove (4) for placing the clamping block (41) is formed in the clamping plate (44).

7. The deepwater sampling device of claim 1, wherein: the lifting device (5) comprises a lifting pipe (51) arranged on the top wall of the pipe body (1), a climbing buckle (54) fixed at the top of the pipe body (1) is arranged at one end, close to the pipe body (1), of the lifting pipe (51), a penetrating hole (52) for a lifting rope (61) to penetrate out is formed in one end, close to the pipe body (1), of the outer side wall of the pipe body (1), and the lifting rope (61) penetrates through the penetrating hole (52) along the length direction of the lifting pipe (51).

8. The deepwater sampling device of claim 7, wherein: the lifting pipe (51) is evenly provided with a plurality of lifting holes (53) along the length direction, the lifting rope (61) is provided with a plurality of holding knots (611) corresponding to the lifting holes (53), one end, close to the pipe body (1), of the outer side wall of the lifting pipe (51) is provided with a limiting rope (55), the other end of the limiting rope (55) is fixed on the lifting rope, and the length of the limiting rope (55) is smaller than the distance between the adjacent lifting holes (53).

9. The deepwater sampling device of claim 8, wherein: the outer side wall of the pipe body (1) is provided with a guide clamp (56) enabling the lifting rope (61) to slide along the outer side wall of the pipe body (1), and the guide clamp (56) is evenly distributed along the length direction of the pipe body (1).

10. The deepwater sampling device of claim 9, wherein: the one end that body (1) lateral wall is close to balancing weight (31) is provided with flexible intake pipe (2) of intercommunication body (1), body (1) lateral wall is provided with elasticity clamp (21) of sealed intake pipe (2), elasticity clamp (21) are including articulating at body (1) lateral wall flexure strip (22), flexure strip (22) are kept away from its articulated department one end and are provided with fixed hook (23), body (1) lateral wall is provided with cassette tape (24), cassette tape (24) all have a plurality of draw-in grooves (25) that supply fixed hook (23) to block along its length direction.