Water sampling device for environmental protection

Abstract

The invention discloses a water sample collection device for environmental protection, which comprises a mounting bottom plate, a rotating shaft and a mounting frame, the rotating shaft is rotatably arranged at the top of the mounting bottom plate, and the invention relates to the technical field of water sample collection. According to the water sample collection device for environmental protection, the isolation sampling mechanism, the flexible winding mechanism and the water sample extraction mechanism are arranged at the top of the mounting bottom plate, so that the device is easy to perform isolation sampling at a specified water depth through cooperation of the isolation sampling mechanism, the flexible winding mechanism and the water sample extraction mechanism; according to the device, a water sample is ensured not to be mixed by other layers of water bodies, isolation sampling of the device is easy to trigger through a flexible winding mechanism, and on the basis, the device is also easy to flexibly wind, lift or release the cone-bottom sinking cylinder on the basis of not influencing sampling through limiting transformation; and a water sample in the rubber corrugated cylinder can be easily drained and extracted through the water sample extraction mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water sample collection, in particular to a water sample collection device for environmental protection. BACKGROUND

[0002] In environmental protection work, water quality monitoring is a key link to evaluate water pollution and develop treatment programs, and the accuracy of water sample collection directly determines the reliability of water quality monitoring data, so water sample collection devices have been widely used in the environmental protection field. At present, there are many types of water sample collection devices for environmental protection on the market, but there are still many problems to be solved in the actual use process, especially in the isolation sampling process under the water depth environment.

[0003] Most of the existing water sample collection devices directly sink to take water with a single container, and such a sampling mechanism lacks effective isolation structure and is easily disturbed by different water depth levels during sinking. When the device sinks to the target sampling depth from the water surface, the surface water body is easy to enter the inside together with the collection container, and is mixed with the water sample at the target depth, resulting in that the collected water sample cannot truly reflect the water quality of the water depth, which seriously affects the accuracy of subsequent detection data. At the same time, the triggering mode of the isolation mechanism of some devices with preliminary isolation function is relatively complicated, and it is necessary to control by manual operation on the shore through complex operation, which not only has large operation difficulty, but also has triggering delay problem, and it is difficult to complete accurate isolation at the moment when the device reaches the specified water depth, further reducing the sampling quality.

[0004] In addition, the sampling depth adjustment flexibility of the existing device is insufficient, most of which can only control the sinking depth by manually releasing the length of the rope, and cannot realize accurate positioning and stable fixation of the sampling depth according to the actual demand, therefore a water sample collection device for environmental protection is proposed to solve the existing problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a water sample collection device for environmental protection, which solves the problem that the sampling mechanism lacks effective isolation structure and is easily disturbed by different water depth levels during sinking.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: A water sample collecting device for environmental protection, comprising a mounting bottom plate, a rotating shaft and a mounting frame, the rotating shaft is rotatably arranged on the top of the mounting bottom plate, the mounting frame is fixedly arranged on the front side of the rotating shaft, both sides of the inner cavity of the mounting frame are rotatably provided with rotating drums, one side of the rotating drum is fixedly connected with a first winding wheel, the inside of the first winding wheel is wound with a lifting belt, the ends of the two lifting belts are fixedly connected with a conical bottom sinking cylinder, the inside of the conical bottom sinking cylinder is provided with an isolation sampling mechanism, the inside of the mounting frame is provided with a flexible winding mechanism, the top of the mounting bottom plate is provided with a water sample extraction mechanism.

[0007] Preferably, the isolation sampling mechanism comprises a rubber corrugated cylinder, the rubber corrugated cylinder is fixedly arranged in the inner cavity bottom of the conical bottom sinking cylinder, the inner cavity bottom of the conical bottom sinking cylinder is slidably provided with a blocking circular plate, the top of the rubber corrugated cylinder is fixedly connected with a metal ring, the top of the metal ring is fixedly connected with a plurality of guide sliding columns, a plurality of guide sliding columns are slidably connected with an arc bottom pressing plate, the bottom of the arc bottom pressing plate is fixedly connected with the top of the rubber corrugated cylinder, both sides of the top of the arc bottom pressing plate are fixedly connected with a first limiting frame, the inside of the first limiting frame is slidably connected with a first positioning plate, the first positioning plate and the first limiting frame are fixedly connected with a first spring, the top of the arc bottom pressing plate is fixedly connected with a receiving cylinder, the inside of the receiving cylinder is slidably connected with a movable column, the movable column and the receiving cylinder are fixedly connected with a fourth spring, the movable column and the first positioning plate are rotatably connected with a push-pull plate, the top of the movable column is connected with a trigger winding belt, both sides of the inner cavity of the conical bottom sinking cylinder are provided with a first positioning groove matched with the first positioning plate.

[0008] Preferably, the flexible winding mechanism comprises a first servo motor, the first servo motor is fixedly connected with one side of the mounting frame through a support, the output shaft of the first servo motor is fixedly connected with a control shaft through a shaft coupling, one end of the control shaft penetrates through the rotating drum and is rotatably connected with the inner wall of the mounting frame, the surface of the control shaft and between the two first winding wheels is fixedly connected with a second winding wheel matched with the trigger winding belt, opposite sides of the two first winding wheels are fixedly connected with a plurality of transverse sliding rods at equal distances, a plurality of transverse sliding rods on the same side are slidably connected with an inner multi-rib sleeve, both sides of the second winding wheel are fixedly connected with an outer multi-rib socket matched with the inner multi-rib sleeve, the surface of the inner multi-rib sleeve is rotatably provided with a rotating frame, both sides of the inner cavity bottom of the mounting frame are fixedly connected with first electric telescopic rods, the top of the extension end of the two first electric telescopic rods is fixedly connected with a top plate, the top of the top plate is fixedly connected with a control frame, the control frame and the rotating frame are rotatably connected with a push-pull frame, both sides of the top of the top plate are fixedly connected with stop inserting plates, both sides of the first winding wheel are provided with a plurality of stop inserting grooves matched with the stop inserting plates.

[0009] Preferably, the water sample extraction mechanism comprises a second electric telescopic rod, which is fixedly arranged on the top of the mounting bottom plate, and two second electric telescopic rods are arranged, and a placing cover is fixedly connected between the extension ends of the two second electric telescopic rods, a funnel is fixedly connected in the placing cover, a top rod is fixedly connected in the funnel through a support, and a sample bottle placing groove is arranged in the bottom of the inner cavity of the placing cover.

[0010] Preferably, the second limiting frame is fixedly connected to the front side and the rear side of the top of the arc bottom pressing plate, the second positioning plate is slidably connected in the second limiting frame, the second spring is fixedly connected between the second positioning plate and the second limiting frame, the hand pushing plate is fixedly connected to the top of the second positioning plate, and the second positioning grooves matched with the second positioning plate are arranged in the front side and the rear side of the inner cavity of the conical bottom sinking cylinder.

[0011] Preferably, the inner wall of the conical bottom sinking cylinder is surrounded by a plurality of guide sliding grooves, the outer surface of the arc bottom pressing plate is fixedly connected with guide sliding blocks matched with the guide sliding grooves in sliding mode, and the third spring is fixedly connected between the guide sliding blocks and the guide sliding grooves.

[0012] Preferably, the second servo motor is fixedly connected to the top of the mounting bottom plate, and the gear wheels are arranged on the end of the output shaft of the second servo motor and the surface of the rotating shaft and are engaged with each other.

[0013] Preferably, the reinforcing cover is fixedly connected to the top of the mounting bottom plate and is rotatably connected between the reinforcing cover and the rotating shaft, the ring groove is arranged in the top of the reinforcing cover, the arc-shaped reinforcing sliding plate is slidably connected in the ring groove, and the top of the arc-shaped reinforcing sliding plate is fixedly connected with the bottom of the mounting frame.

[0014] Preferably, a plurality of ball bearings are arranged on the surfaces of the first positioning plate and the second positioning plate.

[0015] Preferably, the traction rollers are rotatably arranged between the two sides of the inner cavity of the mounting frame, and two traction rollers are arranged in front and back.

[0016] The water sample collection device for environmental protection has the following beneficial effects compared with the prior art: (1) The water sample collection device for environmental protection, by setting the isolation sampling mechanism, flexible winding mechanism and water sample extraction mechanism on the top of the installation bottom plate, the device is easy to cooperate with the isolation sampling mechanism, flexible winding mechanism and water sample extraction mechanism, so as to facilitate the device to isolate sampling at the specified water depth, ensure that the water sample will not be mixed with other levels of water, and through the flexible winding mechanism, the isolation sampling of the device is easy to trigger, and on this basis, through the limiting transformation, the device is also easy to flexibly wind or release the sinking cylinder under the cone bottom without affecting the sampling, and through the water sample extraction mechanism, the water sample in the rubber corrugated cylinder is easily drained and extracted.

[0017] (2) The water sample collection device for environmental protection, by setting the bottom of the arc bottom pressing plate as an arc surface, the arc bottom pressing plate is easy to fold the rubber corrugated cylinder while compressing the middle of the folded rubber corrugated cylinder, so that the top of the rubber corrugated cylinder sinks into the remaining space inside the rubber corrugated cylinder, further reducing the storage volume of the rubber corrugated cylinder, avoiding the problem of excessive air accumulation inside the rubber corrugated cylinder, causing sinking difficulty.

[0018] (3) The water sample collection device for environmental protection, by setting the bottom of the cone bottom sinking cylinder as a conical surface, the cone bottom sinking cylinder is easy to quickly lodge after contacting the water surface, and then the cone bottom sinking cylinder is quickly filled with water in the lodged state, increasing the self-weight and quickly sinking in the water. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an external structure schematic diagram of the present application; Figure 2 It is a schematic diagram of the internal structure of the installation frame of the present application; Figure 3 It is a schematic diagram of another view of the external structure of the present application; Figure 4 It is a schematic diagram of the internal structure of the reinforcing cover of the present application; Figure 5 It is a schematic diagram of the internal structure of the cone bottom sinking cylinder of the present application; Figure 6 It is a schematic diagram of the internal structure of the cone bottom sinking cylinder of the present application; Figure 5 It is a local enlarged view of A in the present application; Figure 7 It is a schematic diagram of another view of the internal structure of the cone bottom sinking cylinder of the present application; Figure 8 It is a local enlarged view of B in the present application; Figure 7 Figure 9 It is a schematic diagram of the isolation sampling mechanism structure of the present application; Figure 10 It is a schematic diagram of the flexible winding mechanism structure of the present application (one); ​Figure 11 Schematic view of structure of flexible winding mechanism (two); Figure 12 Schematic view of structure of water sample extraction mechanism.

[0020] In the figure: 1, mounting bottom plate; 2, rotating shaft; 3, mounting frame; 4, rotating drum; 5, first winding wheel; 6, hoisting belt; 7, conical bottom sinking cylinder; 8, isolation sampling mechanism; 801, rubber corrugated cylinder; 802, blocking round plate; 803, metal ring; 804, guide sliding column; 805, arc bottom pressing plate; 806, first limiting frame; 807, first positioning plate; 808, first spring; 809, storage cylinder; 810, movable column; 811, fourth spring; 812, push-pull plate; 813, trigger winding belt; 814, first positioning groove; 9, flexible winding mechanism; 901, first servo motor; 902, control shaft; 903, second winding wheel; 904, transverse sliding rod; 905, inner multi-ribbed sleeve; 906, rotating frame; 907, first electric telescopic rod; 908, top plate; 909, control frame; 910, push-pull frame; 911, stop inserting plate; 912, stop inserting groove; 913, outer multi-ribbed socket; 10, water sample extraction mechanism; 101, second electric telescopic rod; 102, placing cover; 103, funnel; 104, jacking rod; 105, sample bottle placing groove; 11, second limiting frame; 12, second positioning plate; 13, second spring; 14, hand push plate; 15, second positioning groove; 16, guide sliding groove; 17, guide sliding block; 18, third spring; 19, second servo motor; 20, gear; 21, reinforcing cover; 22, ring groove; 23, arc-shaped reinforcing sliding plate; 24, ball bearing; 25, traction roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0022] Please refer to Figures 1-12The application provides a technical scheme: a water sample collecting device for environmental protection, which comprises a mounting bottom plate 1, a rotating shaft 2 and a mounting frame 3, the rotating shaft 2 is rotationally arranged on the top of the mounting bottom plate 1, the mounting frame 3 is fixedly arranged on the front side of the rotating shaft 2, rotating cylinders 4 are rotationally arranged on both sides of the inner cavity of the mounting frame 3, a first winding wheel 5 is fixedly connected to one side of the rotating cylinder 4, hoisting belts 6 are wound in the first winding wheel 5, a conical bottom sinking cylinder 7 is fixedly connected to the ends of the two hoisting belts 6, a second servo motor 19 is fixedly connected to the top of the mounting bottom plate 1, and the end of the output shaft of the second servo motor 19 and the surface of the rotating shaft 2 are both provided with intermeshing gears 20, a reinforcing cover 21 is fixedly connected to the top of the mounting bottom plate 1, and the reinforcing cover 21 is rotationally connected between the mounting bottom plate 1 and the rotating shaft 2, a ring groove 22 is formed in the top of the reinforcing cover 21, an arc-shaped reinforcing sliding plate 23 is slidably connected in the ring groove 22, and the top of the arc-shaped reinforcing sliding plate 23 is fixedly connected to the bottom of the mounting frame 3, a traction roller 25 is rotationally arranged between the two sides of the inner cavity of the mounting frame 3, and two traction rollers 25 are arranged in front of and behind the traction roller 25.

[0023] As a preferred embodiment, in order to isolate other water layers for sampling, the conical bottom sinking cylinder 7 is provided with an isolation sampling mechanism 8, the isolation sampling mechanism 8 comprises a rubber corrugated cylinder 801, the rubber corrugated cylinder 801 is fixedly arranged in the inner cavity bottom of the conical bottom sinking cylinder 7, a blocking circular plate 802 is slidably arranged in the inner cavity bottom of the conical bottom sinking cylinder 7, a metal ring 803 is fixedly connected to the top of the rubber corrugated cylinder 801, a plurality of guide sliding columns 804 are fixedly connected around the top of the metal ring 803, an arc bottom pressing plate 805 is slidably connected between the plurality of guide sliding columns 804, the bottom of the arc bottom pressing plate 805 is fixedly connected to the top of the rubber corrugated cylinder 801, first limiting frames 806 are fixedly connected to the two sides of the top of the arc bottom pressing plate 805, first positioning plates 807 are slidably connected in the first limiting frames 806, first springs 808 are fixedly connected between the first positioning plates 807 and the first limiting frames 806, a receiving cylinder 809 is fixedly connected to the top of the arc bottom pressing plate 805, a movable column 810 is slidably connected in the receiving cylinder 809, a fourth spring 811 is fixedly connected between the movable column 810 and the receiving cylinder 809, a push-pull plate 812 is rotationally connected between the movable column 810 and the first positioning plate 807, a trigger winding belt 813 is connected to the top of the movable column 810, first positioning grooves 814 matched with the first positioning plates 807 are formed in both sides of the inner cavity of the conical bottom sinking cylinder 7; The front side and the rear side of the top of the arc bottom pressing plate 805 are fixedly connected with second limiting frames 11, the interiors of the second limiting frames 11 are slidably connected with second positioning plates 12, the second positioning plates 12 and the second limiting frames 11 are fixedly connected with second springs 13, the top of the second positioning plate 12 is fixedly connected with a hand pushing plate 14, the front side and the rear side of the inner cavity of the conical bottom sinking cylinder 7 are provided with second positioning grooves 15 matched with the second positioning plates 12, the inner wall of the conical bottom sinking cylinder 7 is provided with a plurality of guide sliding grooves 16, the outer surface of the arc bottom pressing plate 805 is fixedly connected with guide sliding blocks 17 slidably matched with the guide sliding grooves 16, the guide sliding blocks 17 and the guide sliding grooves 16 are fixedly connected with third springs 18, and the surfaces of the first positioning plate 807 and the second positioning plate 12 are provided with a plurality of ball bearings 24.

[0024] As a preferred embodiment, in order to facilitate the flexible triggering of the insulation sampling mechanism 8 on the basis of lifting and releasing the conical bottom sinking cylinder 7, the inside of the mounting frame 3 is provided with a flexible winding mechanism 9, the flexible winding mechanism 9 comprises a first servo motor 901, the first servo motor 901 is fixedly connected to one side of the mounting frame 3 through a support, the output shaft of the first servo motor 901 is fixedly connected with a control shaft 902 through a shaft coupling, one end of the control shaft 902 penetrates through the rotating cylinder 4 and is rotatably connected with the inner wall of the mounting frame 3, the surface of the control shaft 902 and between the two first winding wheels 5 is fixedly connected with a second winding wheel 903 matched with the trigger winding belt 813, the opposite sides of the two first winding wheels 5 are fixedly connected with a plurality of transverse sliding rods 904 at equal intervals, a plurality of inner multi-rib bushings 905 are slidably connected between the same side of the plurality of transverse sliding rods 904, the two sides of the second winding wheel 903 are fixedly connected with outer multi-rib sockets 913 matched with the inner multi-rib bushings 905, a rotating frame 906 is rotatably arranged on the surface of the inner multi-rib bushing 905, the two sides of the inner cavity bottom of the mounting frame 3 are fixedly connected with first electric telescopic rods 907, the top of the extension end of the two first electric telescopic rods 907 is fixedly connected with a top plate 908, the top of the top plate 908 is fixedly connected with a control frame 909, a push-pull frame 910 is rotatably connected between the control frame 909 and the rotating frame 906, the two sides of the top of the top plate 908 are fixedly connected with stop inserting plates 911, and the two sides of the first winding wheel 5 are provided with a plurality of stop inserting grooves 912 matched with the stop inserting plates 911.

[0025] As a preferred embodiment, in order to facilitate the extraction of water samples, the top of the installation base plate 1 is provided with a water sample extraction mechanism 10, which comprises a second electric telescopic rod 101 fixedly arranged on the top of the installation base plate 1, and the second electric telescopic rod 101 is provided with two, and the two second electric telescopic rods 101 are commonly fixedly connected between the extension ends, and a placing cover 102 is commonly fixedly connected between the extension ends of the two second electric telescopic rods 101, the inside of the placing cover 102 is fixedly connected with a funnel 103, the inside of the funnel 103 is fixedly connected with a top rod 104 through a support, and a sample bottle placing groove 105 is arranged at the bottom of the inner cavity of the placing cover 102.

[0026] The specific use steps are as follows: Self-adjusting sampling depth: start the first servo motor 901, the first servo motor 901 drives the second winding wheel 903 to rotate through the control shaft 902, the second winding wheel 903 drives the first winding wheel 5 to rotate through the synchronous driving of the outer multi-rib socket 913 and the inner multi-rib sleeve 905, the first winding wheel 5 rotates to release the length of the hoisting belt 6, the second winding wheel 903 rotates to release the length of the trigger winding belt 813, accompanied by the release of the hoisting belt 6 and the trigger winding belt 813, the bottom of the conical bottom sinking cylinder 7 starts to contact the water surface, because the bottom of the conical bottom sinking cylinder 7 is a conical surface, therefore the conical bottom sinking cylinder 7 will dump the water surface during the release of the hoisting belt 6, and from the dumping state, the water source is poured, and after the conical bottom sinking cylinder 7 is filled with water and sinks in the specified sampling water depth, the first electric telescopic rod 907 is started, the extension end of the first electric telescopic rod 907 drives the top plate 908 and the control frame 909 to rise, the control frame 909 rises to drive the trolley 906 to move horizontally through the push-pull frame 910, the trolley 906 moves to drive the inner multi-rib sleeve 905 to move, which promotes the disengagement of the inner multi-rib sleeve 905 and the outer multi-rib socket 913, during the disengagement of the inner multi-rib sleeve 905 and the outer multi-rib socket 913, the corresponding top plate 908 drives the stop plate 911 to enter the inside of the first winding wheel 5 bottom stop slot 912, thereby limiting the first winding wheel 5; Deep sampling: after the conical bottom sinking cylinder 7 is filled with water and sinks in the specified sampling water depth, the first electric telescopic rod 907 is started, the extension end of the first electric telescopic rod 907 drives the top plate 908 and the control frame 909 to rise, the control frame 909 rises to drive the trolley 906 to move horizontally through the push-pull frame 910, the trolley 906 moves to drive the inner multi-rib sleeve 905 to move, which promotes the disengagement of the inner multi-rib sleeve 905 and the outer multi-rib socket 913, during the disengagement of the inner multi-rib sleeve 905 and the outer multi-rib socket 913, the corresponding top plate 908 drives the stop plate 911 to enter the inside of the first winding wheel 5 bottom stop slot 912, thereby limiting the first winding wheel 5; Subsequently start the first servo motor 901, make the first servo motor 901 drive the second winding wheel 903 to rotate a circle through the control shaft 902, the second winding wheel 903 reverse rotation will trigger the winding belt 813 to be wound, the upward winding of the trigger winding belt 813 pulls the movable column 810 to rise, the movable column 810 rises through the push-pull plate 812 to drag the first positioning plate 807 to move horizontally, the first positioning plate 807 moves horizontally and is limited with the first positioning groove 814, after the first positioning plate 807 moves horizontally and is limited with the first positioning groove 814, the arc bottom pressing plate 805 is reset by the tension of the third spring 18, when the arc bottom pressing plate 805 rises, the arc bottom of the arc surface of the arc bottom pressing plate 805 pulls the top of the rubber bellows 801 in advance, so that the top of the rubber bellows 801 restores the balance state in advance, then the arc bottom pressing plate 805 rises and drives the metal ring 803 to rise through the guide slide column 804, the metal ring 803 drives the rubber bellows 801 to expand as a whole, the arc bottom pressing plate 805 rises and is limited by the second positioning plate 12 and the second positioning groove 15 during the rising process; Wherein when the top of the rubber bellows 801 rises, the blocking round plate 802 will slide upward because it loses the downward pressure of the rubber bellows 801 and the water source from below, after the rubber bellows 801 is filled with water, the blocking round plate 802 naturally sinks to close; Sample separation from water: after the rubber bellows 801 is filled with water, reset the inner multi-rib sleeve 905 and the stop plate 911, so that the inner multi-rib sleeve 905 is recombined with the outer multi-rib socket 913, and finally continue to reverse the first servo motor 901, so that the control shaft 902 synchronously drives the second winding wheel 903 and the first winding wheel 5 to rotate reversely, when the second winding wheel 903 and the first winding wheel 5 reverse winding, the conical bottom sinking cylinder 7 rises as a whole, and finally separates from the water surface and makes the top adhere to the bottom of the mounting frame 3; Sample extraction: then start the second servo motor 19, the output shaft of the second servo motor 19 drives the gear 20 to mesh, so that the rotating shaft 2 carries the mounting frame 3 and the conical bottom sinking cylinder 7 to rotate backward, and then start the second electric telescopic rod 101, the extension end of the second electric telescopic rod 101 drives the placement cover 102, the funnel 103 and the top rod 104 to rise, the top rod 104 rises and enters the inside of the conical bottom sinking cylinder 7 from bottom to top and opens the blocking round plate 802, after the blocking round plate 802 is opened, the water source enters the inside of the funnel 103, and flows through the funnel 103 to the inside of the sample bottle in the placement cover 102; It should be noted that when sampling again, the second positioning plate 12 and the second positioning groove 15 need to be manually released in advance, and the rubber bellows 801 needs to be compressed and limited again.

Claims

1. An environmental protection water sample collection device, comprising a mounting bottom plate (1), a rotating shaft (2) and a mounting frame (3), the rotating shaft (2) is rotatably arranged on the top of the mounting bottom plate (1), and the mounting frame (3) is fixedly arranged on the front side of the rotating shaft (2), characterized in that: The installation frame (3) inner cavity both sides are rotationally arranged with rotary drum (4), one side of the rotary drum (4) is fixedly connected with first winding wheel (5), the inside of the first winding wheel (5) is wound with hoisting belt (6), the tail end of two hoisting belts (6) is fixedly connected with conical bottom sinking cylinder (7), the inside of the conical bottom sinking cylinder (7) is provided with isolation sampling mechanism (8), the inside of the installation frame (3) is provided with flexible winding mechanism (9), the top of the installation bottom plate (1) is provided with water sample extraction mechanism (10).

2. The water sampling device for environmental protection according to claim 1, characterized in that: The isolation sampling mechanism (8) includes a rubber bellows cylinder (801), the rubber bellows cylinder (801) is fixedly arranged in the inner cavity of the conical bottom sinking cylinder (7), the inner cavity of the conical bottom sinking cylinder (7) is slidably provided with a blocking circular plate (802), the top of the rubber bellows cylinder (801) is fixedly connected with a metal ring (803), the top of the metal ring (803) is fixedly connected with a plurality of guide sliding columns (804), a plurality of guide sliding columns (804) are slidably connected with an arc bottom pressing plate (805), the bottom of the arc bottom pressing plate (805) is fixedly connected with the top of the rubber bellows cylinder (801), the two sides of the top of the arc bottom pressing plate (805) are fixedly connected with a first limiting frame (806), the inside of the first limiting frame (806) is slidably connected with a first positioning plate (807), the first positioning plate (807) and the first limiting frame (806) are fixedly connected with a first spring (808), the top of the arc bottom pressing plate (805) is fixedly connected with a receiving cylinder (809), the inside of the receiving cylinder (809) is slidably connected with a movable column (810), the movable column (810) and the receiving cylinder (809) are fixedly connected with a fourth spring (811), the movable column (810) and the first positioning plate (807) are rotatably connected with a push-pull plate (812), the top of the movable column (810) is connected with a trigger winding belt (813), the two sides of the inner cavity of the conical bottom sinking cylinder (7) are provided with a first positioning groove (814) matched with the first positioning plate (807).

3. The water sampling device for environmental protection according to claim 2, characterized in that: The flexible winding mechanism (9) includes a first servo motor (901), the first servo motor (901) is fixedly connected to one side of the mounting frame (3) through a support, the output shaft of the first servo motor (901) is fixedly connected with a control shaft (902) through a shaft coupling, and one end of the control shaft (902) penetrates through the rotating drum (4) and is rotatably connected with the inner wall of the mounting frame (3), the surface of the control shaft (902) and between the two first winding wheels (5) are fixedly connected with a second winding wheel (903) matched with the trigger winding belt (813), a plurality of transverse slide rods (904) are fixedly connected around the opposite sides of the two first winding wheels (5) at equal distances, a plurality of transverse slide rods (904) on the same side are slidably connected with an inner multi-rib sleeve (905), the two sides of the second winding wheel (903) are fixedly connected with an outer multi-rib socket (913) matched with the inner multi-rib sleeve (905), a rotating frame (906) is rotatably arranged on the surface of the inner multi-rib sleeve (905), first electric telescopic rods (907) are fixedly connected to the both sides of the bottom of the inner cavity of the mounting frame (3), a top plate (908) is fixedly connected to the top of the extension end of the two first electric telescopic rods (907), a control frame (909) is fixedly connected to the top of the top plate (908), and a push-pull frame (910) is rotatably connected between the control frame (909) and the rotating frame (906), stop insertion plates (911) are fixedly connected to the both sides of the top of the top plate (908), and a plurality of stop insertion grooves (912) matched with the stop insertion plates (911) are formed in the both sides of the first winding wheel (5).

4. The water sampling device for environmental protection according to claim 1, characterized in that: The water sample extraction mechanism (10) includes a second electric telescopic rod (101), the second electric telescopic rod (101) is fixedly arranged on the top of the mounting bottom plate (1), and the second electric telescopic rod (101) is provided with two, the extension end of the two second electric telescopic rods (101) is fixedly connected with a placing cover (102), the inside of the placing cover (102) is fixedly connected with a funnel (103), the inside of the funnel (103) is fixedly connected with a top rod (104) through a support, and a sample bottle placing groove (105) is formed in the bottom of the inner cavity of the placing cover (102).

5. The water sampling device for environmental protection according to claim 2, characterized in that: The front side and the rear side of the top of the arc bottom pressing plate (805) are fixedly connected with second limiting frames (11), a second positioning plate (12) is slidably connected in the second limiting frame (11), a second spring (13) is fixedly connected between the second positioning plate (12) and the second limiting frame (11), a hand pushing plate (14) is fixedly connected to the top of the second positioning plate (12), and second positioning grooves (15) matched with the second positioning plate (12) are formed in the front side and the rear side of the inner cavity of the conical bottom sunken cylinder (7).

6. The water sampling device for environmental protection according to claim 2, characterized in that: The inner wall of the conical bottom sinking cylinder (7) is provided with a plurality of guide sliding grooves (16), the outer surface of the arc bottom pressing plate (805) is fixedly connected with guide sliding blocks (17) which are slidably matched with the guide sliding grooves (16), and the guide sliding blocks (17) and the guide sliding grooves (16) are fixedly connected with third springs (18).

7. The water sampling device for environmental protection according to claim 1, characterized in that: The top of the mounting bottom plate (1) is fixedly connected with a second servo motor (19), and the end of the output shaft of the second servo motor (19) and the surface of the rotating shaft (2) are both provided with mutually meshed gears (20).

8. The water sampling device for environmental protection according to claim 1, characterized in that: The top of the mounting bottom plate (1) is fixedly connected with a reinforcing cover (21), and the reinforcing cover (21) is rotatably connected with the rotating shaft (2), the top of the reinforcing cover (21) is provided with a ring groove (22), the inner part of the ring groove (22) is slidably connected with an arc reinforcing sliding plate (23), and the top of the arc reinforcing sliding plate (23) is fixedly connected with the bottom of the mounting frame (3).

9. The water sampling device for environmental protection according to claim 2, characterized in that: The surfaces of the first positioning plate (807) and the second positioning plate (12) are both provided with a plurality of balls (24).

10. The water sampling device for environmental protection according to claim 1, characterized in that: The mounting frame (3) is rotatably provided with a traction roller (25) between the two sides of the inner cavity, and the traction roller (25) is provided with two before and after.

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