CN111735666A

CN111735666A - River basin multi-depth water body sampler

Info

Publication number: CN111735666A
Application number: CN202010656571.6A
Authority: CN
Inventors: 夏帮洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-10-02

Abstract

The invention relates to a sampler, in particular to a river-area multi-depth water body sampler. The technical problem is how to design a river water sampler for collecting river water at different depths, so that the river water detection accuracy is high, and the river water sampler is convenient to operate. A river basin multi-depth water body sampler comprises: the middle part of one side of the cylinder body is provided with a guide groove, and the guide groove is divided into three parts with different sizes. According to the invention, the cylinder body is inserted into a river, the rocker is pulled to rotate forwards so that the double-groove winding wheel releases the pull wire, the three sampling cylinders move downwards to corresponding positions, meanwhile, the baffle does not block the feed inlet of the sampling cylinder, river water flows into the sampling cylinder, and after sampling of the river water is completed, the rocker is pulled to rotate backwards so that the sampling cylinder moves upwards to reset, so that river water at different depths can be sampled simultaneously, and the river water detection accuracy is higher.

Description

River basin multi-depth water body sampler

Technical Field

The invention relates to a sampler, in particular to a river-area multi-depth water body sampler.

Background

A river is a naturally occurring water course. A water body form. The stream, river, water, river and the like can be regarded as a water channel formed by receiving runoff. There are different choices of words depending on the application. The water in a river is usually fresh water and may originate from glaciers, higher terrain, flow to lower terrain seas, oceans, lakes, underground crevices, or another waterway. Or because the water inflow is little than the evaporation capacity midway or does not meet other water bodies and dry up, when protecting the river basin, all need regularly to carry out the sample test to the water of river basin, in order to guarantee the precision to river detection, all can sample the river of the different degree of depth.

A conventional sampling device, such as chinese patent with patent publication No. CN205665049U, discloses a river sampling device, which includes a fixing assembly, a telescopic assembly, a water intake assembly and a rope winding and unwinding device, which can be fastened on an external fixture; one end of the telescopic assembly is fixed on the fixing assembly, the other end of the telescopic assembly is fixed with a first pulley, the water taking assembly is connected with a rope, the other end of the rope is fixed on the rope winding and unwinding device by bypassing the first pulley, and the rope winding and unwinding device is fixed on the fixing assembly. This river water sampling device can make personnel just take a sample to the flowing water in the river at the bank, and the sample comparatively accords with reality, is fit for the sample operation of various condition, and structural strength is big, the expansion withdrawal is all convenient laborsaving, and folding back is small, convenient to carry, above-mentioned patent exists following not enoughly: the water of a degree of depth only can be sampled, influence the accuracy that river water detected, and through the water of the different degree of depth of many times sampling, lead to work efficiency low, the operation is still troublesome.

Disclosure of Invention

The invention aims to overcome the defects that the accuracy of river water detection is influenced because only water at one depth can be sampled, and the defects of low working efficiency and troublesome operation caused by sampling water at different depths for many times.

The technical scheme is as follows: a river basin multi-depth water body sampler comprises: the middle part of one side of the cylinder is provided with a guide groove, the guide groove is divided into three parts with different sizes, three guide grooves are arranged at intervals on one inner side of the cylinder, which is far away from the guide groove, and the concave parts of the three guide grooves are positioned at different positions; the sampling mechanism is arranged between the cylinder body and the guide groove and is used for sampling river water at different depths; and the retraction mechanism is arranged between the inner side and the outer side of the cylinder body, is matched with the sampling mechanism and is used for moving the sampling mechanism.

Further, it is particularly preferable that the sampling mechanism includes: the sliding blocks are slidably placed on two sides in the cylinder body close to the guide groove; the hollow block is fixedly connected between the inner sides of the two sliding blocks, and the end part of the hollow block, which is far away from the guide groove, penetrates through the guide groove to be in sliding fit with the guide groove; the sampling cylinder is fixedly connected to the end part of the hollow block far away from the guide groove; the rubber plug is placed at the discharge end of the sampling cylinder; the movable plate is in sliding type penetrating connection with one side of the sampling cylinder far away from the rubber plug, a baffle is fixedly connected to the end part of the movable plate far away from the guide groove, and the baffle is matched with a feeding hole of the sampling cylinder; the T-shaped rod is slidably placed in the hollow block, and the end part of the T-shaped rod, which is far away from the guide groove, is fixedly connected with the end part of the movable plate, which is far away from the baffle plate; the first spring is connected to one side, facing the inside of the T-shaped rod, of the baffle plate, and the tail end of the first spring is fixedly connected with one side in the hollow block; the guide wheel, the leading wheel rigid coupling in towards the guide slot outside one side of T type pole, three the leading wheel sets up in the past, just the leading wheel is located rather than the cooperation in the guide slot.

Further, it is particularly preferable that the radio/cassette mechanism includes: the supporting plates are symmetrically and fixedly connected to the opening of the barrel body; the double-groove reel is rotatably arranged between one part of the two support plates far away from the hollow block, and two pull wires are wound on the double-groove reel; the rocker is fixedly connected to the end part of the double-groove winding wheel penetrating through the supporting plate; the U-shaped block is slidably arranged between two sides in the cylinder body, and the same side of the sliding block is horizontal; the push block is fixedly connected between the inner sides of the u-shaped blocks and is in contact fit with the hollow block far away from the supporting plate, and the tail ends of the two pull wires penetrate into the cylinder and are fixedly connected with one side of the push block facing the double-groove reel.

Further, it is particularly preferable that the apparatus further comprises a trigger mechanism including: the magnets are arranged on two sides in the cylinder body in a sliding mode at intervals, are arranged on the same side of the sliding block, and correspond to the concave parts of the guide grooves; a third spring connected between a side of the magnet facing the sampling tube and an interior of the barrel; the number of the vertical rods is two, one of the vertical rods is fixedly connected between one sides of the three magnets close to one side of the guide groove, the other vertical rod is fixedly connected between one sides of the three magnets close to the other side of the guide groove, and one end of the vertical rod is close to the supporting plate; the n-shaped plate is fixedly connected between the end parts of the two vertical rods far away from the magnet and matched with the barrel; the T-shaped fixture block is slidably connected to two parts of the hollow block far away from the sampling cylinder in a penetrating manner and matched with the magnet; the second spring is connected between one side, facing the inside of the T-shaped fixture block, of the T-shaped rod and one side, facing the outside of the hollow block, and the number of the second springs on each side is at least two; the clamping grooves are formed in the two ends of the T-shaped rod close to the guide wheel, and the inner ends of the T-shaped clamping blocks are located in the clamping grooves and matched with the clamping grooves.

Further, it is particularly preferable that: the push rods, the quantity of push rods is two, and one of them is installed and is kept away from the backup pad and towards the double flute reel the outer one side of hollow block, another install in towards the centre of double flute reel the outer one side of hollow block, the push rod with hollow block cooperation.

Further, it is particularly preferable that: the inserted bar is slidably connected to one part of the rocker close to the barrel in a penetrating manner; the slot is formed in one side, close to the support plate, of the rocker, and the end, facing the double-slot reel, of the inserted rod is located in the slot and matched with the slot; and the fourth spring is sleeved on the inserted rod, one end of the fourth spring is fixedly connected with one part of the inserted rod close to the rocker, and the other end of the fourth spring is fixedly connected with one side of the rocker far away from the supporting plate.

The beneficial effects are that:

1. through inserting the barrel in the river territory, pull rocking bar corotation again and make double flute wire winding wheel pair act as go-between and relax, three sampling tube then moves down to corresponding position, simultaneously, the baffle does not block the feed inlet of sampling tube, and the river then flows into in the sampling tube, and the river sample is accomplished the back, and the reversal of pulling rocking bar makes the sampling tube rebound reset, so, can take a sample the river of the different degree of depth simultaneously for the accuracy that the river detected is higher.

2. Through trigger mechanism's effect, can control the time of getting to the river dress to the sampling tube, avoid the river to stir the sample that influences the different degree of depth water.

3. Through the effect of push rod, can promote the hollow block rebound of middle and top and reset, then need not to promote through the sampling tube and reset, more make things convenient for operating personnel to collect the river in the sampling tube.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is a perspective view of a third embodiment of the present invention.

Fig. 5 is an enlarged schematic view of part a of the present invention.

Fig. 6 is an enlarged view of part B of the present invention.

Fig. 7 is an enlarged view of part C of the present invention.

Wherein the figures include the following reference numerals: 1. the automatic sampling device comprises a cylinder body, 2 parts of a guide groove, 3 parts of a guide groove, 4 parts of a sampling mechanism, 41 parts of a sliding block, 42 parts of a hollow block, 43 parts of a sampling cylinder, 44 parts of a rubber plug, 45 parts of a movable plate, 46 parts of a baffle plate, 47 parts of a T-shaped rod, 48 parts of a first spring, 49 parts of a guide wheel, 5 parts of a retraction mechanism, 51 parts of a support plate, 52 parts of a double-groove reel, 53 parts of a rocker, 54 parts of a pull wire, 55 parts of a u-shaped block, 56 parts of a push block, 6 parts of a trigger mechanism, 61. n-shaped plates, 62 parts of a vertical rod, 63. parts of a T-shaped fixture block, 64 parts of a second spring, 65 parts of a clamping groove, 66 parts of a magnet, 67 parts of a third.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, a river-area multi-depth water sampler comprises a barrel 1, a sampling mechanism 4 and a retraction mechanism 5, wherein a guide groove 2 is formed in the middle of the left side of the barrel 1, the guide groove 2 is gradually reduced from top to bottom, the sampling mechanism 4 is arranged between the guide groove 2 and the front and rear sides in the barrel 1, three guide grooves 3 are uniformly formed in the right side surface in the barrel 1 at intervals, concave parts of the three guide grooves 3 are in different positions, the guide grooves 3 are in contact fit with the sampling mechanism 4, the retraction mechanism 5 is arranged between the front and rear side surfaces and the top in the barrel 1, and the retraction mechanism 5 is matched with the sampling mechanism 4.

The sampling mechanism 4 comprises a sliding block 41, a hollow block 42, a sampling cylinder 43, a rubber plug 44, a movable plate 45, a baffle plate 46, a T-shaped rod 47, a first spring 48 and a guide wheel 49, wherein three sliding blocks 41 are arranged at the left parts of the front side and the rear side in the cylinder body 1 in a sliding manner, the hollow block 42 is fixedly connected between the inner side surfaces of the corresponding sliding blocks 41 at the front side and the rear side, the hollow block 42 is matched with the retraction and extension mechanism 5, the sampling cylinder 43 is fixedly connected at the left end of the top of the sampling cylinder 43, the rubber plug 44 is plugged at the bottom end of the sampling cylinder 43, the left parts of the three hollow blocks 42 are different in diameter, the T-shaped rod 47 is arranged at the inner sliding manner in the hollow block 42, the guide wheel 49 is fixedly connected at the outer right side of the T-shaped rod 47, the right end of the guide wheel 49 penetrates through the hollow block 42 to be matched with the guide groove 3, the three guide wheels 49 are, a baffle 46 is arranged on the upper part of the sampling tube 43 in a sliding mode, the baffle 46 is matched with a feeding hole of the sampling tube 43, a movable plate 45 is fixedly connected to the middle of the right side face of the baffle 46, and the right end of the movable plate 45 is fixedly connected with the left end of a T-shaped rod 47.

The retracting mechanism 5 comprises a supporting plate 51, a double-groove reel 52, a rocker 53, pull wires 54, a u-shaped block 55 and a pushing block 56, the u-shaped block 55 is arranged between the left parts of the front side surface and the rear side surface in the cylinder 1 in a sliding mode, the u-shaped block 55 is located under the sliding block 41, the pushing block 56 is fixedly connected to the inner side surface of the u-shaped block 55, the pushing block 56 is matched with the hollow block 42, the supporting plate 51 is fixedly connected to the left parts of the front side and the rear side surface of the top of the cylinder 1, the double-groove reel 52 is rotatably connected between the upper parts of the supporting plate 51 on the front side and the rear side surface, two pull wires 54 are wound on the double-groove reel 52, the tail ends of the two pull wires 54 penetrate into.

Firstly, an operator inserts a cylinder body 1 into a river basin, and then shakes a retraction mechanism 5 to operate, the retraction mechanism 5 does not block a sampling mechanism 4, the sampling mechanism 4 moves downwards due to the action of gravity, when the sampling mechanism 4 moves downwards to a concave part of a guide groove 3, the sampling mechanism 4 stops moving downwards, the guide groove 2 blocks the sampling mechanism 4, meanwhile, the sampling mechanism 4 starts to load and take river water with different depths, after the river water sampling is completed, the retraction mechanism 5 is shaken to operate to drive the sampling mechanism 4 to reset, the sampling mechanism 4 is closed to stop collecting the river water, the retraction mechanism 5 is stopped shaking, the cylinder body 1 is pulled out of the river basin, and then the river water with different depths, which is loaded in the sampling mechanism 4, is poured out for subsequent detection.

Initially, the first spring 48 is in a compressed state, when the barrel 1 is inserted into a river, an operator shakes the retraction mechanism 5 to prevent the hollow block 42 from blocking, due to the action of gravity, the hollow block 42 moves downwards to drive the sampling tube 43 to move downwards, meanwhile, the hollow block 42 also drives the guide wheel 49 to move downwards through the T-shaped rod 47, the guide wheel 49 moves downwards to roll in the guide groove 3, the lowermost hollow block 42 moves to the lowermost part in the guide groove 2, the middle hollow block 42 is clamped at the lower part of the guide groove 2, the upper hollow block 42 is clamped at the upper part of the guide groove 2, at the same time, the guide wheel 49 also moves to correspond to the concave part of the guide groove 3, due to the action of the first spring 48, the T-shaped rod 47 moves rightwards to drive the guide wheel 49 to move rightwards, at the same time, the T-shaped rod 47 also drives the movable plate 45 to move rightwards, the movable plate 45 drives the baffle plate 46, the baffle plate 46, river water flows into the sampling cylinders 43, the three sampling cylinders 43 sample the river water with different depths, when the sampling cylinders 43 are filled with the river water, the retraction mechanism 5 is pulled to drive the lowermost hollow block 42 to move upwards, the lowermost hollow block 42 moves upwards to drive the guide wheel 49 to move upwards through the T-shaped rod 47, the guide wheel 49 moves upwards to be separated from the concave part of the guide groove 3, the guide groove 3 enables the guide wheel 49 to move leftwards to be reset, the guide wheel 49 resets to drive the T-shaped rod 47 to move leftwards to reset, the first spring 48 is compressed, the T-shaped rod 47 resets to drive the baffle 46 to move leftwards to reset through the movable plate 45, the baffle 46 resets to block the feeding port of the sampling cylinders 43, the river water stops flowing into the lowermost sampling cylinder 43, the lowermost sampling cylinder 43 moves upwards to be in contact with the middle sampling cylinder 43, namely, the middle sampling cylinder 43 is driven to move upwards, the middle sampling cylinder 43 moves upwards to be in contact with the uppermost sampling cylinder 43 to drive the uppermost, in the same way, the top also moves leftwards with baffle 46 in the middle of and resets and prevents in river inflow sampling tube 43, after sampling tube 43 all resets, stop pulling jack 5, take out inserted bar 8 from the river basin, pull three sampling tube 43 separation again, place collecting container in sampling tube 43 below, pulling rubber buffer 44 and sampling tube 43 break away from, the river in sampling tube 43 then discharge in the collecting container, after the river is all discharged, put back rubber buffer 44 to sampling tube 43 in, so, just also accomplished the river to the different degree of depth and sampled and collected.

When the cylinder 1 is inserted into a river to be fixed, the rocker 53 is pulled to rotate positively, the rocker 53 rotates positively to drive the double-groove reel 52 to rotate positively, the double-groove reel 52 rotates positively to release the pull wire 54, the pull wire 54 is released to enable the push block 56 to move downwards due to the action of gravity, the push block 56 moves downwards to be separated from the hollow block 42, the hollow block 42 is enabled to drive the sampling cylinder 43 to move to a specified position, when the push block 56 moves downwards to the maximum stroke, the rocker 53 stops being shaken, the double-groove reel 52 stops rotating positively, and river water at different depths can be sampled. After the river sampling is completed, the pulling rocker 53 rotates reversely to drive the double-groove reel 52 to rotate reversely, the double-groove reel 52 rotates reversely to roll the pull wire 54, the pull wire 54 rolls to drive the push block 56 to move upwards, the push block 56 moves upwards to contact with the lowermost hollow block 42, the push block 56 drives the lowermost hollow block 42 to move upwards, the lowermost sampling cylinder 43 also moves upwards, the lowermost sampling cylinder 43 moves upwards to drive the two sampling cylinders 43 to move upwards to reset, the pulling rocker 53 is stopped, and the barrel body 1 can be taken out from the river.

Example 2

Referring to fig. 2-6, the present embodiment is different from embodiment 1 mainly in that the present embodiment further includes a trigger mechanism 6, the trigger mechanism 6 includes an n-shaped plate 61, a vertical rod 62, a T-shaped fixture block 63, a second spring 64, a magnet 66 and a third spring 67, the T-shaped fixture block 63 is slidably disposed at right portions of front and rear sides of the hollow block 42, an iron sheet is disposed on an outer side surface of the T-shaped fixture block 63, the second spring 64 is connected between left and right sides of an inner front side surface of the front T-shaped fixture block 63 and right portion of an outer front side surface of the hollow block 42, the second spring 64 is also connected between left and right sides of an inner rear side surface of the rear T-shaped fixture block 63 and right portion of an outer rear side surface of the hollow block 42, the middle portions of front and rear ends of the T-shaped rod 47 are respectively provided with a slot 65, inner ends of the T-shaped fixture block 63 are located in the slot 65 and are, magnet 66 and the cooperation of T type fixture block 63 are connected with third spring 67 between magnet 66 left surface and the barrel 1 is inside, all the rigid coupling has montant 62 between the three magnet 66 medial surface right part in front side and between the three magnet 66 medial surface right part in rear side between the three magnet 66 medial surface right part in front side, and the montant 62 top is located outside the barrel 1, and the rigid coupling has n template 61 between the front and back both sides montant 62 top, n template 61 and barrel 1 contact cooperation.

When the hollow block 42 drives the sampling cylinder 43 to move downwards, the hollow block 42 also drives the T-shaped fixture block 63 to move downwards, when all three sampling cylinders 43 move to corresponding positions, the hollow block 42 stops moving, the T-shaped fixture block 63 stops moving, an operator can pull the n-shaped plate 61 to move leftwards, the n-shaped plate 61 moves leftwards to drive the vertical rod 62 to move leftwards, the vertical rod 62 moves leftwards to drive the magnet 66 to move leftwards, the third spring 67 is compressed, when the magnet 66 moves leftwards to correspond to the T-shaped fixture block 63, the magnet 66 drives the T-shaped fixture block 63 to move outwards, the second spring 64 is stretched, the T-shaped fixture block 63 moves outwards to be separated from the clamping groove 65, the T-shaped rod 47 moves rightwards to move rightwards to drive the baffle plate 46 to move rightwards through the movable plate 45 without blocking the feeding hole of the sampling cylinder 43, river water is discharged into the sampling cylinder 43, after the river water sampling is finished, the hollow, the hollow block 42 also drives the T-shaped fixture block 63 to move upwards, the T-shaped fixture block 63 moves upwards to be separated from the magnet 66, the T-shaped fixture block 63 moves inwards to be inserted into the clamping groove 65 to fix the T-shaped rod 47 under the action of the second spring 64, meanwhile, the n-shaped plate 61 is loosened by an operator, and the magnet 66 moves rightwards to drive the n-shaped plate 61 to move rightwards to reset through the vertical rod 62 under the action of the third spring 67. So, can wait for after a certain time in this device puts into the river basin and begin the sample again, avoid water to be stirred the sample that influences the different degree of depth water.

Example 3

Referring to fig. 2 and 7, the present embodiment is different from embodiment 1 and embodiment 2 mainly in that in the present embodiment, a push rod 7 is further included, the push rod 7 is fixedly connected to both the middle hollow block 42 and the lower hollow block 42 at the right side of the outer top, the top end of the upper push rod 7 is in contact fit with the outer bottom of the upper hollow block 42, and the top end of the lower push rod 7 is in contact fit with the outer bottom of the middle hollow block 42.

The novel rocking chair is characterized by further comprising an inserted link 8 and a fourth spring 10, wherein a slot 9 is formed in the middle of the lower portion of the front side supporting plate 51, the inserted link 8 is arranged on the lower portion of the rocking rod 53 in a sliding mode, the rear end of the inserted link 8 is located in the slot 9, and the fourth spring 10 is wound between the middle of the inserted link 8 and the lower portion of the front side of the rocking rod 53.

When the pushing block 56 drives the lowermost hollow block 42 to move upwards, the lowermost hollow block 42 moves upwards to drive the lower pushing rod 7 to move upwards, the lower pushing rod 7 moves upwards to drive the middle hollow block 42 to move upwards, the middle hollow block 42 moves upwards to drive the upper pushing rod 7 to move upwards, the upper pushing rod 7 moves upwards to drive the uppermost hollow block 42 to move upwards, and therefore the three hollow blocks 42 all move upwards to reset. Therefore, the inconvenience of pouring out the river water caused by the contact reset of the three sampling cylinders 43 is avoided.

When the barrel body 1 is inserted into a river, the insert rod 8 can be pulled to move forwards, the fourth spring 10 is stretched, the insert rod 8 moves forwards to be separated from the slot 9, the pull of the insert rod 8 is stopped, the insert rod 8 is pulled to rotate forwards, the insert rod 8 rotates forwards to drive the rocker 53 to rotate forwards, the double-slot reel 52 rotates forwards, the push block 56 moves downwards to the maximum stroke, the pull of the insert rod 8 is stopped, the insert rod 8 is loosened, and the insert rod 8 moves backwards to be inserted into the slot 9 to fix the rocker 53 under the action of the fourth spring 10. When the push block 56 needs to be moved upwards for resetting, the push block 56 can be reset according to the operation. In this way, a person's accidental contact with the rocker lever 53 to cause the dual-slot reel 52 to rotate is avoided.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.

Claims

1. A river basin multi-depth water body sampler is characterized by comprising:

the device comprises a barrel body (1), wherein a guide groove (2) is formed in the middle of one side of the barrel body (1), the guide groove (2) is divided into three parts with different sizes, three guide grooves (3) are formed in one inner side, far away from the guide groove (2), of the barrel body (1) at intervals, and concave positions of the three guide grooves (3) are located at different positions;

the sampling mechanism (4) is arranged between the cylinder body (1) and the guide groove (2) and is used for sampling river water at different depths;

the retraction mechanism (5) is arranged between the inner side and the outer side of the cylinder body (1), is matched with the sampling mechanism (4) and is used for enabling the sampling mechanism (4) to move.

2. A river basin multi-depth water sampler as claimed in claim 1, wherein the sampling mechanism (4) comprises:

the sliding blocks (41) are placed on two sides in the cylinder (1) close to the guide groove (2) in a sliding mode;

the hollow block (42) is fixedly connected between the inner sides of the two sliding blocks (41), and the end part of the hollow block (42) far away from the guide groove (3) penetrates through the guide groove (2) to be in sliding fit with the guide groove;

the sampling cylinder (43), the sampling cylinder (43) is fixedly connected to the end part of the hollow block (42) far away from the guide groove (3);

the rubber plug (44), the said rubber plug (44) is placed on the discharge end of the said sample barrel (43);

the movable plate (45) is in sliding type penetrating connection with one side, away from the rubber plug (44), of the sampling barrel (43), a baffle (46) is fixedly connected to the end, away from the guide groove (3), of the movable plate (45), and the baffle (46) is matched with a feeding hole of the sampling barrel (43);

the T-shaped rod (47), the T-shaped rod (47) is slidably placed in the hollow block (42), and the end part of the T-shaped rod, which is far away from the guide groove (3), is fixedly connected with the end part of the movable plate (45), which is far away from the baffle plate (46);

the first spring (48), the first spring (48) is connected to the inner side of the T-shaped rod (47) facing the baffle plate (46), and the tail end of the first spring is fixedly connected with the inner side of the hollow block (42);

leading wheel (49), leading wheel (49) rigid coupling in orientation guide slot (3) one side outside T type pole (47), it is three leading wheel (49) sets up in the alternative, just leading wheel (49) are located in guide slot (3) rather than the cooperation.

3. The river basin multi-depth water sampler as claimed in claim 2, wherein the retraction mechanism (5) comprises:

the supporting plate (51), the supporting plate (51) is symmetrically and fixedly connected to the opening of the cylinder body (1);

a double-slot reel (52), wherein the double-slot reel (52) is rotatably arranged between one part of the two support plates (51) far away from the hollow block (42) and is wound with two pull wires (54);

the rocker (53), the said rocker (53) is affixed to the end of the said double-slotted reel (52) which crosses the said shoe plate (51);

the u-shaped block (55) is placed between two sides in the barrel (1) in a sliding manner, and the same side of the sliding block (41) is horizontal;

the push block (56) is fixedly connected between the inner sides of the u-shaped blocks (55) and is in contact fit with the hollow block (42) far away from the supporting plate (51), and the tail ends of the two pull wires (54) penetrate into the barrel body (1) and are fixedly connected with one side of the push block (56) facing the double-groove reel (52).

4. A river basin multi-depth water sampler as claimed in claim 3, further comprising a trigger mechanism (6), wherein the trigger mechanism (6) comprises:

the magnets (66) are arranged on two sides in the barrel body (1) in a sliding mode at intervals, the magnets (66) are arranged on the same side with the sliding block (41), and the magnets (66) correspond to the concave parts of the guide grooves (3);

a third spring (67), wherein the third spring (67) is connected between the side of the magnet (66) facing the sampling tube (43) and the inside of the cylinder body (1);

the number of the vertical rods (62) is two, one of the vertical rods (62) is fixedly connected between one sides of the three magnets (66) close to one side of the guide groove (3), the other vertical rod is fixedly connected between one sides of the three magnets (66) close to the other side of the guide groove (3), and one end of the vertical rod is close to the supporting plate (51);

the n-shaped plate (61), the n-shaped plate (61) is fixedly connected between the ends of the two vertical rods (62) far away from the magnet (66), and the n-shaped plate is matched with the barrel (1);

the T-shaped fixture block (63), the T-shaped fixture block (63) is slidably connected to two parts of the hollow block (42) far away from the sampling barrel (43) in a penetrating manner, and the T-shaped fixture block is matched with the magnet (66);

the second spring (64) is connected between the inner side of the T-shaped fixture block (63) facing the T-shaped rod (47) and the outer side of the hollow block (42), and the number of the second springs (64) on each side is at least two;

the clamping groove (65), the clamping groove (65) is arranged at the two ends of the T-shaped rod (47) close to the guide wheel (49), and the inner end of the T-shaped clamping block (63) is located in the clamping groove (65) and matched with the clamping groove.

5. The river basin multi-depth water sampler as claimed in claim 4, further comprising:

the quantity of the push rods (7) is two, one of the push rods (7) is installed far away from the supporting plate (51) and faces to the outer side of the hollow block (42) of the double-groove reel (52), the other push rod is installed facing to the middle of the double-groove reel (52) and is arranged on the outer side of the hollow block (42), and the push rods (7) are matched with the hollow block (42).

6. The river basin multi-depth water sampler as claimed in claim 5, further comprising:

the inserted bar (8), the inserted bar (8) is slidably connected to one part of the rocker (53) close to the cylinder (1) in a penetrating way;

the insertion groove (9) is formed in one side, close to the supporting plate (51) of the rocker (53), of the insertion rod (8), and the end portion, facing the double-groove reel (52), of the insertion rod is located in the insertion groove (9) and matched with the insertion groove;

the fourth spring (10) is sleeved on the inserted rod (8), one end of the fourth spring (10) is fixedly connected with one part of the inserted rod (8) close to the rocker (53), and the other end of the fourth spring is fixedly connected with one side of the rocker (53) far away from the supporting plate (51).