CN221826553U - A sampler - Google Patents

Abstract

The utility model provides a sampler, which belongs to the technical field of water sampling, and is used to solve the problem that when sampling water samples of different depths, the water body needs to be sampled multiple times through the sampler, resulting in complicated operation and low sampling efficiency; it comprises a support frame and a sampling tube; an auxiliary component is slidably arranged on the inner side of the support frame, and a lifting hook is movably arranged on the other end of the connecting rope; a driving structure is hung on the outer side of the lifting hook, and a sampling device is fixedly arranged on the bottom of the driving structure; an adjustment component is fixedly arranged between two groups of the sampling tubes; by arranging a winding roller, a connecting rope and a weighted ball, three groups of sampling tubes can be placed in different depths of the water area for sampling; by using a toothed plate and a missing gear, the vertical axis can be rotated 90 degrees, so that the block slides out of the water inlet hole; by using a connecting tube and a hexagonal connecting shaft, the three groups of horizontal plates can be rotated at the same time; the three groups of sampling tubes can use the water inlet hole to sample water bodies of different depths at the same time, thereby enhancing the sampling efficiency.

Description

A sampler

Technical Field

The utility model belongs to the technical field of water body sampling, and more specifically, particularly relates to a sampler.

Background Art

Water environment monitoring takes the water environment as the object, and uses physical, chemical and biological technical means to conduct qualitative, quantitative and systematic comprehensive analysis of the pollutants and their related components in it, in order to explore and study the changing patterns of water environment quality. To monitor the water environment, it is necessary to sample and test the water sources in the target area at different depths through samplers.

Existing water samplers can usually only sample water from one depth at a time. When water samples at different depths need to be sampled, the water body needs to be sampled multiple times through the sampler, which results in cumbersome operation and low sampling efficiency. It is also inconvenient to ensure the consistency of the sampling position, and it is also inconvenient to ensure the distance between two sampling depths. This reduces the accuracy of sampling and the practicality of the sampler.

Utility Model Content

In order to solve the above technical problems, the utility model provides a sampler to solve the problem proposed in the above background technology that when sampling water samples of different depths, the water body needs to be sampled multiple times through the sampler, resulting in cumbersome operation and low sampling efficiency.

The utility model is a sampler, which is achieved by the following specific technical means:

A sampler, comprising a support frame; two groups of L-shaped mounting seats are fixedly arranged on the outer side of the support frame, a rotating shaft is rotatably arranged inside the support frame, and a winding roller is fixedly arranged on the outer side of the rotating shaft; a synchronous wheel A is fixedly arranged on the outer side of one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the rotating shaft of a motor device, and the motor device is fixedly arranged on the support frame; a connecting rope is evenly wound on the outer side of the winding roller, and one end of the connecting rope is fixedly arranged inside the winding roller;

An auxiliary component is slidably arranged on the inner side of the support frame, and a lifting hook is movably arranged on the other end of the connecting rope; a driving structure is hung on the outer side of the lifting hook, and a sampling device is fixedly arranged on the bottom of the driving structure; the sampling device comprises: a sampling tube, a water inlet hole and a weighted ball; the number of sampling tubes is set to three groups, and the three groups of sampling tubes are arranged in a vertical straight line, and the topmost sampling tube is fixedly arranged at the bottom of the driving structure; the water inlet hole is opened inside the top side of the sampling tube; the weighted ball is fixedly arranged at the bottom of the bottommost sampling tube; an adjustment component is fixedly arranged between the two groups of sampling tubes.

In at least some embodiments, a reciprocating screw is rotatably arranged inside the support frame, and a synchronous wheel B is fixedly arranged on the top of the reciprocating screw, and a synchronous belt device is installed between the synchronous wheel B and the synchronous wheel A; a fixed ring is fixedly arranged on the outside of the support frame, and a connecting rope is slidably arranged on the inside of the fixed ring.

In at least some embodiments, the auxiliary component includes: an auxiliary seat, a fixed plate, a pulley and a driving block; the auxiliary seat is slidably arranged on the inner side of the support frame through a dovetail groove, and the auxiliary seat is movably arranged on the outer side of the reciprocating screw; the fixed plate is fixedly arranged on the outer side of the auxiliary seat, and the number of fixed plates is set to two groups; the pulley is rotatably arranged between the two groups of fixed plates, and the number of pulleys is set to two groups, and a connecting rope is movably arranged between the two groups of pulleys; the driving block is fixedly arranged inside the auxiliary seat, and the driving block is movably arranged inside the spiral groove inside the reciprocating screw.

In at least some embodiments, a connecting shaft is rotatably arranged inside the lifting hook, and a torsion spring is arranged between the outer side of the connecting shaft and the inside of the lifting hook; an anti-slip plate is fixedly arranged on the outer side of the connecting shaft, and the outer side of the end of the anti-slip plate is in contact with the inner side of the lifting hook.

In at least some embodiments, the driving structure includes: a connecting ring, a driving frame, an electric telescopic rod, a sliding seat and a tooth plate; the connecting ring is movably arranged on the outside of the lifting hook; the driving frame is fixedly arranged at the bottom of the connecting ring, and the driving frame and the topmost sampling tube are arranged to be fixedly connected; the electric telescopic rod is fixedly arranged inside the driving frame; the sliding seat is slidably arranged inside the driving frame through a dovetail groove, and the sliding seat and the telescopic end of the electric telescopic rod are arranged to be fixedly connected; the tooth plate is fixedly arranged on the outside of the sliding seat.

In at least some embodiments, the sampling device also includes: a vertical shaft, a missing gear, a connecting tube, a connecting shaft, a horizontal plate, a fixed seat, a circular plate and a stopper; the number of vertical shafts is set to three groups, and the three groups of vertical shafts are respectively rotatably set inside the sampling tube; the missing gear is fixedly set at the top of the topmost vertical shaft, and the missing gear is meshed with the tooth plate; the connecting tube is fixedly set at the bottom end of the vertical shaft; the connecting shaft is fixedly set at the top of the vertical shaft, and the connecting shaft is set to a hexagon, and the connecting shaft is slidably set inside the connecting tube; the horizontal plate is fixedly set on the outside of the vertical shaft; the fixed seat is fixedly set on both sides of the horizontal plate; the circular plate is slidably set inside the fixed seat, and a spring member is set between the circular plate and the fixed seat; the stopper is fixedly set on the outside of the circular plate, and the stopper is slidably set between the inside of the fixed seat and the inner side of the water inlet hole, and the end of the stopper is set to a spherical structure.

In at least some embodiments, the adjustment assembly includes: an adjustment cylinder, an adjustment column, a threaded rod and an adjustment shaft; the adjustment cylinder is fixedly arranged on the top of a group of sampling cylinders; the adjustment column is slidably arranged inside the adjustment cylinder, and the adjustment column is fixedly arranged at the bottom of another group of sampling cylinders; the threaded rod is rotatably arranged inside the adjustment cylinder, and the threaded rod is arranged inside the adjustment column through a threaded connection, and a bevel gear is fixedly arranged at the bottom end of the threaded rod; the adjustment shaft is rotatably arranged inside the inner side of the adjustment cylinder, and a knob is fixedly arranged at one end of the adjustment shaft; a bevel gear is fixedly arranged at the other end of the adjustment shaft, and the bevel gear at the end of the adjustment shaft is meshed with the bevel gear at the bottom end of the threaded rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the utility model, by providing a winding roller, a connecting rope and a weighted ball, three groups of sampling tubes can be placed at different depths in the water for sampling; at the same time, by using a toothed plate and a missing gear, the vertical axis can be rotated 90°, so that the block slides out of the water inlet hole; and by using a connecting tube and a hexagonal connecting shaft, the three groups of horizontal plates can be rotated simultaneously; thus, the three groups of sampling tubes can use the water inlet hole to sample water bodies of different depths at the same time, thereby enhancing the sampling efficiency.

2. In the utility model, by providing a bevel gear at the end of the adjusting shaft and a bevel gear at the bottom end of the threaded rod, the adjusting shaft can drive the threaded rod to rotate so that the adjusting column slides inside the adjusting cylinder, thereby controlling and adjusting the distance between the two groups of sampling cylinders; this is beneficial to ensuring the consistency of the distances at different sampling depths and the accuracy of sampling.

3. In the utility model, by providing a torsion spring member and a connecting shaft, the end of the anti-detachment plate can always fit with the inner side of the lifting hook without being subjected to external force, which is beneficial to prevent the connection ring from detaching from the lifting hook and ensures the stability of the sampling tube during sampling.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the internal structure of the support frame of the present invention.

FIG. 3 is a schematic structural diagram of an auxiliary component of the present invention.

FIG. 4 is a schematic structural diagram of a lifting hook of the present utility model.

FIG. 5 is a schematic structural diagram of the driving structure of the present utility model.

FIG6 is a schematic cross-sectional view of the sampling tube and the connecting tube of the present invention.

FIG. 7 is a schematic cross-sectional structural diagram of the fixing seat of the present invention.

FIG8 is a schematic cross-sectional view of the regulating cylinder of the present utility model.

In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

1. Support frame; 101. Mounting seat; 102. Rotating shaft; 103. Winding roller; 104. Synchronous wheel A; 105. Connecting rope; 106. Reciprocating screw; 107. Synchronous wheel B; 108. Fixed ring;

2. Auxiliary components; 201. Auxiliary seat; 202. Fixed plate; 203. Pulley; 204. Driving block;

3. Lifting hook; 301. Connecting shaft; 302. Anti-slip plate;

4. Driving structure; 401. Connecting ring; 402. Driving frame; 403. Electric telescopic rod; 404. Sliding seat; 405. Tooth plate;

5. Sampling device; 501. Sampling tube; 502. Water inlet; 503. Weighted ball; 504. Vertical shaft; 505. Missing gear; 506. Connecting tube; 507. Connecting shaft; 508. Horizontal plate; 509. Fixed seat; 5010. Round plate; 5011. Stopper;

6. Adjustment assembly; 601. Adjustment cylinder; 602. Adjustment column; 603. Threaded rod; 604. Adjustment shaft.

DETAILED DESCRIPTION

The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

Embodiment 1:

As shown in Figures 1 to 8:

The utility model provides a sampler, comprising a support frame 1; two groups of L-shaped mounting seats 101 are fixedly arranged on the outer side of the support frame 1, and a rotating shaft 102 is rotatably arranged inside the support frame 1, and a winding roller 103 is fixedly arranged on the outer side of the rotating shaft 102; a synchronous wheel A104 is fixedly arranged on the outer side of one end of the rotating shaft 102, and the other end of the rotating shaft 102 is fixedly connected to the rotating shaft of a motor device, and the motor device is fixedly arranged on the support frame 1; a connecting rope 105 is evenly wound on the outer side of the winding roller 103, and one end of the connecting rope 105 is fixedly arranged inside the winding roller 103;

In the embodiment of the present disclosure, an auxiliary component 2 is slidably provided on the inner side of the support frame 1, and a lifting hook 3 is movably provided on the other end of the connecting rope 105; a driving structure 4 is hung on the outer side of the lifting hook 3, and a sampling device 5 is fixedly provided at the bottom of the driving structure 4; the sampling device 5 includes: a sampling tube 501, a water inlet hole 502 and a weighted ball 503; the number of sampling tubes 501 is set to three groups, and the three groups of sampling tubes 501 are arranged in a vertical straight line, and the top sampling tube 501 is fixedly provided at the bottom of the driving structure 4; the water inlet hole 502 is opened inside the top side of the sampling tube 501; the weighted ball 503 is fixedly provided at the bottom of the bottom sampling tube 501; an adjusting component 6 is fixedly provided between the two groups of sampling tubes 501; the driving structure 4 includes: a connecting ring 401, The drive frame 402, the electric telescopic rod 403, the sliding seat 404 and the tooth plate 405; the connecting ring 401 is movably arranged on the outside of the lifting hook 3; the drive frame 402 is fixedly arranged at the bottom of the connecting ring 401, and the drive frame 402 and the top sampling tube 501 are set to be fixedly connected; the electric telescopic rod 403 is fixedly arranged inside the drive frame 402; the sliding seat 404 is slidably arranged inside the drive frame 402 through a dovetail groove, and the sliding seat 404 and the telescopic end of the electric telescopic rod 403 are set to be fixedly connected; the tooth plate 405 is fixedly arranged on the outside of the sliding seat 404; the sampling device 5 also includes: a vertical shaft 504, a missing gear 505, a connecting tube 506, a connecting shaft 507, a horizontal plate 508, a fixed seat 509, a circular plate 5010 and The stopper 5011 is provided; the number of vertical shafts 504 is set to three groups, and the three groups of vertical shafts 504 are rotatably arranged inside the sampling tube 501; the missing gear 505 is fixedly arranged at the top of the topmost vertical shaft 504, and the missing gear 505 is meshed with the tooth plate 405; the connecting tube 506 is fixedly arranged at the bottom end of the vertical shaft 504; the connecting shaft 507 is fixedly arranged at the top of the vertical shaft 504, and the connecting shaft 507 is set to a hexagon, and the connecting shaft 507 is slidably arranged inside the connecting tube 506; the horizontal plate 508 is fixedly arranged outside the vertical shaft 504; the fixed seat 509 is fixedly arranged on both sides of the horizontal plate 508; the circular plate 5010 is slidably arranged inside the fixed seat 509, and a spring member is arranged between the circular plate 5010 and the fixed seat 509; the stopper 5011 is provided; the number of vertical shafts 504 is set to three groups, and the three groups of vertical shafts 504 are rotatably arranged inside the sampling tube 501; the missing gear 505 is fixedly arranged at the top of the top vertical shaft 504, and the missing gear 505 is meshed with the tooth plate 405; the connecting tube 506 is fixedly arranged at the bottom end of the vertical shaft 504; the connecting shaft 507 is fixedly arranged at the top of the vertical shaft 504, and the connecting shaft 507 is set to a hexagon, and the connecting shaft 507 is slidably arranged inside the connecting tube 506; the horizontal plate 508 is fixedly arranged outside the vertical shaft 504; the fixed seat 509 is fixedly arranged on both sides of the horizontal plate 508; the circular plate 50 1 is fixedly arranged on the outside of the circular plate 5010, and the stopper 5011 is slidably arranged between the inside of the fixed seat 509 and the inside of the water inlet hole 502, and the end of the stopper 5011 is arranged as a spherical structure; its specific functions are: by arranging the winding roller 103, the connecting rope 105 and the weighted ball 503, the three groups of sampling tubes 501 can be placed in the water area at different depths for sampling; at the same time, the tooth plate 405 and the missing gear 505 can be used to rotate the vertical axis 504 by 90°, so that the stopper 5011 slides out of the water inlet hole 502; and the connecting tube 506 and the hexagonal connecting shaft 507 can be used to rotate the three groups of horizontal plates 508 at the same time; so that the three groups of sampling tubes 501 can use the water inlet hole 502 to sample water bodies of different depths at the same time.

Embodiment 2:

As shown in Figures 2 to 4: On the basis of the first embodiment, a reciprocating screw 106 is rotatably arranged inside the support frame 1, and a synchronous wheel B107 is fixedly arranged at the top of the reciprocating screw 106, and a synchronous belt device is installed between the synchronous wheel B107 and the synchronous wheel A104; a fixed ring 108 is fixedly arranged on the outside of the support frame 1, and a connecting rope 105 is slidably arranged on the inside of the fixed ring 108; the auxiliary component 2 includes: an auxiliary seat 201, a fixed plate 202, a pulley 203 and a driving block 204; the auxiliary seat 201 is slidably arranged on the inside of the support frame 1 through a dovetail groove, and the auxiliary seat 201 is movably arranged on the outside of the reciprocating screw 106; the fixed plate 202 is fixedly arranged on the outside of the auxiliary seat 201, and the number of fixed plates 202 is set to two groups; the pulley 203 is rotatably arranged in two groups of fixed plates Between the fixed plates 202, the number of pulleys 203 is set to two groups, and a connecting rope 105 is movably arranged between the two groups of pulleys 203; the driving block 204 is fixedly arranged inside the auxiliary seat 201, and the driving block 204 is movably arranged on the inner side of the spiral groove inside the reciprocating screw 106; a connecting shaft 301 is rotatably arranged inside the lifting hook 3, and a torsion spring member is arranged between the outer side of the connecting shaft 301 and the inside of the lifting hook 3; an anti-slip plate 302 is fixedly arranged on the outer side of the connecting shaft 301, and the outer side of the end of the anti-slip plate 302 is in contact with the inner side of the lifting hook 3; its specific function is: by arranging the torsion spring member and the connecting shaft 301, the end of the anti-slip plate 302 can always be in contact with the inner side of the lifting hook 3 without being subjected to external force, which is beneficial to prevent the connection ring 401 from being separated from the lifting hook 3.

Embodiment three:

As shown in Figures 6 and 8: On the basis of the first and second embodiments, the adjustment assembly 6 includes: an adjustment cylinder 601, an adjustment column 602, a threaded rod 603 and an adjustment shaft 604; the adjustment cylinder 601 is fixedly arranged at the top of a group of sampling cylinders 501; the adjustment column 602 is slidably arranged inside the adjustment cylinder 601, and the adjustment column 602 is fixedly arranged at the bottom of another group of sampling cylinders 501; the threaded rod 603 is rotatably arranged inside the adjustment cylinder 601, and the threaded rod 603 is arranged inside the adjustment column 602 through a threaded connection, and the bottom end of the threaded rod 603 is fixedly provided with a conical gear Wheel; the adjusting shaft 604 is rotatably arranged inside the adjusting cylinder 601, and a knob is fixedly arranged at one end of the adjusting shaft 604; a bevel gear is fixedly arranged at the other end of the adjusting shaft 604, and the bevel gear at the end of the adjusting shaft 604 is meshed with the bevel gear at the bottom end of the threaded rod 603; its specific function is: by providing the bevel gear at the end of the adjusting shaft 604 and the bevel gear at the bottom end of the threaded rod 603, the adjusting shaft 604 can drive the threaded rod 603 to rotate and make the adjusting column 602 slide inside the adjusting cylinder 601, thereby being able to control and adjust the spacing between the two groups of sampling cylinders 501.

The specific usage and function of this embodiment are as follows:

In the utility model, when in use, the support frame 1 is fixedly installed on the shore or the hull through two groups of mounting seats 101; then the anti-drop plate 302 is pressed to place the connecting ring 401 on the inner side of the lifting hook 3; the anti-drop plate 302 is reset through the connecting shaft 301 and the torsion spring member, so that the connecting ring 401 and the lifting hook 3 cannot be separated; the sampling tube 501 is located above the sampling position; then the motor device is started to drive the rotating shaft 102 to rotate, and the rotating shaft 102 releases the connecting rope 105 through the winding roller 103; the three groups of sampling tubes 501 are sunk underwater by the weighted ball 503 ; The three groups of sampling tubes 501 are made to reach the sampling depth by controlling the pay-off length of the connecting rope 105; when the three groups of sampling tubes 501 reach the sampling depth, the electric telescopic rod 403 is started, and the telescopic end of the electric telescopic rod 403 extends outward, so that the sliding seat 404 drives the toothed plate 405 to slide, and the toothed plate 405 drives the top vertical shaft 504 to rotate 90° through the missing gear 505, and the top vertical shaft 504 drives the other two groups of vertical shafts 504 to rotate simultaneously through the connecting tube 506 and the hexagonal connecting shaft 507, so that the three groups of horizontal plates 508 rotate simultaneously, and the horizontal plates 508 are fixed to the fixed seat. 509 drives the block 5011 to slide out of the water inlet hole 502, so that water bodies of different depths enter the three groups of sampling tubes 501 through the water inlet hole 502 respectively; after the sampling is completed, the vertical shaft 504 drives the horizontal plate 508 to rotate 90 degrees in the opposite direction, so that the block 5011 closes the water inlet hole 502 again; the motor device drives the rotating shaft 102 to rotate in the opposite direction, so that the winding roller 103 rewinds the connecting rope 105, and then the three groups of sampling tubes 501 are lifted out of the water; at the same time, when the winding roller 103 rewinds the connecting rope 105, the rotating shaft 102 is driven by the synchronous wheel A104, synchronous wheel B107 and synchronous belt device drive the reciprocating screw 106 to rotate, and the reciprocating screw 106 drives the auxiliary seat 201 to slide back and forth through the driving block 204, and the auxiliary seat 201 drives the connecting rope 105 to swing back and forth through two sets of pulleys 203, so that the connecting rope 105 is evenly wound on the winding roller 103, which is conducive to the phenomenon of rope jam when the connecting rope 105 is retracted and released; and the connecting rope 105 below the fixing ring 108 can be kept vertical by using the fixing ring 108, which is conducive to preventing the phenomenon of the sampling tube 501 swinging with the connecting rope 105;

By turning the knob, the adjusting shaft 604 drives the threaded rod 603 to rotate through the end bevel gear and the bottom bevel gear of the threaded rod 603, and the threaded rod 603 drives the adjusting column 602 to slide inside the adjusting cylinder 601, so that the distance between the two groups of sampling cylinders 501 is adjusted; and then the distance between sampling positions at different depths is adjusted; this is beneficial to ensure the consistency of the distances at different sampling depths and the accuracy of sampling. When the distances between the two groups of sampling cylinders 501 are adjusted, the connecting cylinder 506 and the connecting shaft 507 slide relative to each other, and the hexagonal connecting shaft 507 and the connecting cylinder 506 are used to ensure the transmission between the two groups of vertical shafts 504.

Claims (7)

1. A sampler, characterized in that it comprises: a support frame; two groups of L-shaped mounting seats are fixedly arranged on the outer side of the support frame, and a rotating shaft is rotatably arranged inside the support frame, and a winding roller is fixedly arranged on the outer side of the rotating shaft; a synchronous wheel A is fixedly arranged on the outer side of one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the rotating shaft of the motor device, and the motor device is fixedly arranged on the support frame; a connecting rope is evenly wound on the outer side of the winding roller, and one end of the connecting rope is fixedly arranged inside the winding roller; An auxiliary component is slidably arranged on the inner side of the support frame, and a lifting hook is movably arranged on the other end of the connecting rope; a driving structure is hung on the outer side of the lifting hook, and a sampling device is fixedly arranged on the bottom of the driving structure; the sampling device comprises: a sampling tube, a water inlet hole and a weighted ball; the number of sampling tubes is set to three groups, and the three groups of sampling tubes are arranged in a vertical straight line, and the topmost sampling tube is fixedly arranged at the bottom of the driving structure; the water inlet hole is opened inside the top side of the sampling tube; the weighted ball is fixedly arranged at the bottom of the bottommost sampling tube; an adjustment component is fixedly arranged between the two groups of sampling tubes. 2. A sampler according to claim 1, characterized in that: a reciprocating screw is rotatably arranged inside the support frame, and a synchronous wheel B is fixedly arranged on the top of the reciprocating screw, and a synchronous belt device is installed between the synchronous wheel B and the synchronous wheel A; a fixed ring is fixedly arranged on the outside of the support frame, and a connecting rope is slidably arranged on the inside of the fixed ring. 3. A sampler according to claim 2, characterized in that: the auxiliary components include: an auxiliary seat, a fixed plate, a pulley and a driving block; the auxiliary seat is slidably arranged on the inner side of the support frame through a dovetail groove, and the auxiliary seat is movably arranged on the outer side of the reciprocating screw; the fixed plate is fixedly arranged on the outer side of the auxiliary seat, and the number of fixed plates is set to two groups; the pulley is rotatably arranged between the two groups of fixed plates, and the number of pulleys is set to two groups, and a connecting rope is movably arranged between the two groups of pulleys; the driving block is fixedly arranged inside the auxiliary seat, and the driving block is movably arranged inside the spiral groove inside the reciprocating screw. 4. A sampler according to claim 1, characterized in that: a connecting shaft is rotatably arranged inside the lifting hook, and a torsion spring is arranged between the outer side of the connecting shaft and the inside of the lifting hook; an anti-slip plate is fixedly arranged on the outer side of the connecting shaft, and the outer side of the end of the anti-slip plate is in contact with the inner side of the lifting hook. 5. A sampler according to claim 1, characterized in that: the driving structure includes: a connecting ring, a driving frame, an electric telescopic rod, a sliding seat and a tooth plate; the connecting ring is movably arranged on the outside of the lifting hook; the driving frame is fixedly arranged at the bottom of the connecting ring, and the driving frame and the topmost sampling tube are set to be fixedly connected; the electric telescopic rod is fixedly arranged inside the driving frame; the sliding seat is slidably arranged inside the driving frame through a dovetail groove, and the sliding seat and the telescopic end of the electric telescopic rod are set to be fixedly connected; the tooth plate is fixedly arranged on the outside of the sliding seat. 6. A sampler according to claim 5, characterized in that: the sampling device also includes: a vertical shaft, a missing gear, a connecting tube, a connecting shaft, a horizontal plate, a fixed seat, a circular plate and a stopper; the number of vertical shafts is set to three groups, and the three groups of vertical shafts are respectively rotatably set inside the sampling tube; the missing gear is fixedly set at the top of the topmost vertical shaft, and the missing gear is meshed with the toothed plate; the connecting tube is fixedly set at the bottom of the vertical shaft; the connecting shaft is fixedly set at the top of the vertical shaft, and the connecting shaft is set to a hexagon, and the connecting shaft is slidably set inside the connecting tube; the horizontal plate is fixedly set on the outside of the vertical shaft; the fixed seat is fixedly set on both sides of the horizontal plate; the circular plate is slidably set inside the fixed seat, and a spring member is set between the circular plate and the fixed seat; the stopper is fixedly set on the outside of the circular plate, and the stopper is slidably set between the inside of the fixed seat and the inner side of the water inlet, and the end of the stopper is set to a spherical structure. 7. A sampler according to claim 1, characterized in that: the adjustment assembly includes: an adjustment cylinder, an adjustment column, a threaded rod and an adjustment shaft; the adjustment cylinder is fixedly arranged on the top of a group of sampling cylinders; the adjustment column is slidably arranged inside the adjustment cylinder, and the adjustment column is fixedly arranged on the bottom of another group of sampling cylinders; the threaded rod is rotatably arranged inside the adjustment cylinder, and the threaded rod is arranged inside the adjustment column through a threaded connection, and a bevel gear is fixedly arranged at the bottom end of the threaded rod; the adjustment shaft is rotatably arranged inside the inner side of the adjustment cylinder, and a knob is fixedly arranged at one end of the adjustment shaft; a bevel gear is fixedly arranged at the other end of the adjustment shaft, and the bevel gear at the end of the adjustment shaft is meshed with the bevel gear at the bottom end of the threaded rod.