Water sampling device for water quality detection

Abstract

The utility model discloses a water sampling device for water quality detection, which comprises an operating platform, the upper surface of the operating platform is movably connected with a moving plate, one side of the moving plate is symmetrically and fixedly provided with a support frame, one side of the support frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating shaft, and the output end of the first rotating shaft is fixedly connected with a second rotating shaft. The first rotating shaft penetrates through the supporting frame, and the outer surface of the first rotating shaft is fixedly connected with a wire coil. According to the water sampling device for water quality detection, through the arrangement of the outer water sampling barrel, the inner water sampling barrel and the first filter screen, a first motor is started to drive the outer water sampling barrel to descend into a water area needing water sampling detection to collect a water source, and a second motor is started to drive the inner water sampling barrel to rotate on the inner wall of the outer water sampling barrel; therefore, water in a water area enters the inner water sampling barrel to be stored through the second filter screen and the first filter screen, the second filter screen and the first filter screen play a role in filtering impurities, so that water quality detection is prevented from being affected by excessive impurities in a water source, and the accuracy of water quality detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a water sampling device for water quality detection. Background Art

[0002] Water is the source of life. Human beings cannot live without water in their lives and production activities. The quality of drinking water is closely related to human health.

[0003] With the development of social economy, scientific progress and the improvement of people's living standards, people's requirements for the quality of drinking water are constantly increasing, and the drinking water quality standards are also constantly developing and improving accordingly. Water quality is to evaluate the quality of water bodies, and a series of water quality parameters and water quality standards are stipulated. my country's water environment water quality detection technology has achieved rapid development. At present, my country's water quality monitoring technology is mainly based on physical and chemical detection technology, including chemical method, electrochemical method, atomic absorption spectrophotometry, ion selective electrode method, ion chromatography, gas chromatography, plasma emission spectrometry, etc., and the premise of water quality detection is to sample water from different waters first.

[0004] After searching, Chinese patent publication (announcement) number CN217211682U discloses a mechanical water sampling device for water quality detection. When the water sampling inner cylinder rotates, the water sampling through hole gradually overlaps with the water sampling trough. At this time, the water flows into the water sampling inner cylinder through the water sampling through hole, and then the water pump hose is used to extract the water flowing into the water sampling inner cylinder. When the driving gear rotates under the drive of the rotating shaft, it is connected to the driven gear through the meshing transmission connection with the driven gear, and at the same time drives the driven gear to rotate, thereby realizing the rotation of the water sampling inner cylinder. However, the above device still has certain defects: during use, the water sample to be collected has a lot of impurities, and the above device only introduces water through the water sampling through hole when collecting water source, but does not have the function of blocking impurities in the water source outside the water sampling inner cylinder, which easily causes the sampling through hole to be blocked and affects the service life of the equipment, thereby affecting the accuracy of subsequent water quality detection, so it is necessary to design a water sampling device for water quality detection with a filtering function and blocking impurities outside the water sampling inner cylinder. Therefore, it is necessary to design a water sampling device for water quality detection. Utility Model Content

[0005] The main purpose of the utility model is to provide a water sampling device for water quality detection, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A water sampling device for water quality detection comprises an operating table, wherein the upper surface of the operating table is movably connected to a movable plate, a support frame is symmetrically fixedly arranged on one side of the movable plate, a first motor is fixedly connected to one side of the support frame, an output end of the first motor is fixedly connected to a first rotating shaft, the first rotating shaft passes through the supporting frame, a wire drum is fixedly connected to the outer surface of the first rotating shaft, a rope is arranged on the outer surface of the wire drum, one end of the rope is fixedly connected to a mounting block, a sleeve is threadedly connected to the lower surface of the mounting block, an external water sampling cylinder is fixedly connected to the outer surface of the sleeve; the sleeve passes through the external water sampling cylinder. At the upper part of the water cylinder, the inner wall of the sleeve is fixedly connected with a baffle, the upper surface of the baffle is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a second rotating shaft, the lower surface of the second rotating shaft is fixedly connected with an inner water collection cylinder, the inner water collection cylinder is rotatably connected to the inner wall of the outer water collection cylinder, both sides of the inner water collection cylinder are provided with a first water collection trough, the inner wall of the first water collection trough is movably connected with a first filter, both sides of the outer water collection cylinder are provided with a second water collection trough, the inner wall of the second water collection trough is movably connected with a second filter, and the inner wall of the lower side of the outer water collection cylinder is threadedly connected with a screw cap.

[0008] In order to facilitate the removal of the first filter, the utility model is a water sampling device for water quality detection. First grooves are provided on both sides of the inner water sampling cylinder close to the first filter. A fixing rod is fixedly connected to the inner wall of the first groove. A fixing sleeve is inserted into the outer surface of the fixing rod. A first fixing block is fixedly connected to one side of the fixing sleeve. The first fixing block is fixedly connected to one side of the first filter.

[0009] In order to facilitate the disassembly of the second filter, the utility model is a water sampling device for water quality detection. Second grooves are provided on both sides of the external water sampling cylinder close to the second filter. The inner wall of the second groove is movably connected with a second fixed block. The second fixed block is fixedly connected to one side of the second filter. The inner wall of the second groove is fixedly connected with a bolt. The bolt passes through the second fixed block. The outer surface of the bolt is threadedly connected with a nut.

[0010] In order to achieve the purpose of falling, as a water sampling device for water quality detection of the utility model, both sides of the outer surface of the lower side of the outer water sampling cylinder are fixedly connected with counterweight blocks.

[0011] In order to achieve the purpose of fixing the water tank, as a water sampling device for water quality detection of the utility model, the upper surface of the movable plate is provided with placement grooves at equal intervals, the water tank is placed on the inner wall of the placement groove, a partition is fixedly connected to the middle part of the inner bottom wall of the water tank, and both sides of the upper surface of the movable plate close to the water tank are fixedly connected with fixed plates, one side of the fixed plate is fixedly connected with a first electric telescopic rod, and one side of the first electric telescopic rod is fixedly connected with a fixed frame.

[0012] In order to achieve the purpose of adjusting the length of the movable plate, as a water sampling device for water quality detection of the utility model, slide grooves are opened on both sides of the upper surface of the operating table, and the side of the operating table close to the slide groove is symmetrically fixedly connected to the third motor, and the output end of the third motor is fixedly connected to a screw rod, and the screw rod passes through the slide groove. The outer surface of the screw rod is threadedly connected to a slider, and the upper surface of the slider is fixedly connected to the lower surface of the movable plate. A control panel is provided on the side of the operating table close to the third motor.

[0013] In order to facilitate the movement of the device, as a water sampling device for water quality detection of the utility model, the lower surface of the operating table is fixedly connected with a second electric telescopic rod in a rectangular array, and the lower surface of the second electric telescopic rod is fixedly connected with a universal wheel.

[0014] In order to achieve the purpose of facilitating collection and differentiation, as a water sampling device for water quality detection of the utility model, a cover plate is inserted into the upper surface of the water storage tank, and label placement grooves are symmetrically fixed on the upper surface of the cover plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, through the arrangement of an external water collection cylinder, an internal water collection cylinder and a first filter, the first motor is started to drive the external water collection cylinder to descend to the water area to be sampled and tested to collect water, the second motor is started to drive the internal water collection cylinder to rotate on the inner wall of the external water collection cylinder, and the first filter is rotated to a position corresponding to the second filter, so that the water in the water area passes through the second filter and the first filter into the internal water collection cylinder for collection and storage, the second filter and the first filter filter play a role in filtering impurities, thereby avoiding excessive impurities in the water source affecting water quality detection, thereby improving the accuracy of water quality detection.

[0017] 2. In the utility model, through the arrangement of the slide groove, the slider, the screw and the third motor, the third motor is started to drive the screw to rotate, and the rotation of the screw drives the slider on its outer surface to slide on the inner wall of the slide groove, thereby adjusting the distance between the movable plate and the water area to be collected, thereby facilitating the water collection work. Starting the second electric telescopic rod can adjust the height of the operating table for easy use. The arrangement of the universal wheel can facilitate the position of the moving and fixing device, which is easy to use and easy to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the inner water collection tube of Example 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second filter screen of Example 1 of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first filter screen of Example 1 of the utility model;

[0022] Figure 5 This is a schematic diagram of the rope structure of Example 1 of the utility model;

[0023] Figure 6 This is a schematic diagram of the screw structure of Example 1 of the utility model;

[0024] Figure 7 This is a schematic diagram of the label placement slot structure of Example 2 of the utility model.

[0025] In the figure: 1, operating table; 2, moving plate; 3, support frame; 4, first motor; 5, first rotating shaft; 6, wire drum; 7, rope; 8, mounting block; 9, sleeve; 10, outer water collection cylinder; 11, baffle; 12, second motor; 13, second rotating shaft; 14, inner water collection cylinder; 15, first water collection trough; 16, first filter screen; 17, second water collection trough; 18, second filter screen; 19, rotary cover; 20, first groove; 21, fixing rod; 22, fixing sleeve ; 23. First fixed block; 24. Second groove; 25. Bolt; 26. Nut; 27. Counterweight; 28. Placement slot; 29. ​​Water tank; 30. Partition; 31. Fixed plate; 32. First electric telescopic rod; 33. Fixed frame; 34. Slide; 35. Third motor; 36. Screw; 37. Slider; 38. Control panel; 39. Second electric telescopic rod; 40. Universal wheel; 41. Cover; 42. Label placement slot; 43. Second fixed block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1-6As shown, a water sampling device for water quality detection includes an operating table 1, a movable plate 2 is movably connected to the upper surface of the operating table 1, a support frame 3 is symmetrically fixedly arranged on one side of the movable plate 2, a first motor 4 is fixedly connected to one side of the support frame 3, a first rotating shaft 5 is fixedly connected to the output end of the first motor 4, the first rotating shaft 5 runs through the supporting frame 3, a wire drum 6 is fixedly connected to the outer surface of the wire drum 6, a rope 7 is arranged on the outer surface of the wire drum 6, one end of the rope 7 is fixedly connected to a mounting block 8, a sleeve 9 is threadedly connected to the lower surface of the mounting block 8, and an external water sampling cylinder 10 is fixedly connected to the outer surface of the sleeve 9;

[0029] In this embodiment, the sleeve 9 passes through the upper part of the outer water collection cylinder 10, the inner wall of the sleeve 9 is fixedly connected with a baffle 11, the upper surface of the baffle 11 is fixedly connected with a second motor 12, the output end of the second motor 12 is fixedly connected with a second rotating shaft 13, the lower surface of the second rotating shaft 13 is fixedly connected with an inner water collection cylinder 14, the inner water collection cylinder 14 is rotatably connected to the inner wall of the outer water collection cylinder 10, both sides of the inner water collection cylinder 14 are provided with a first water collection trough 15, the inner wall of the first water collection trough 15 is movably connected with a first filter screen 16, both sides of the outer water collection cylinder 10 are provided with a second water collection trough 17, the inner wall of the second water collection trough 17 is movably connected with a second filter screen 18, and the inner wall of the lower side of the outer water collection cylinder 10 is threadedly connected with a screw cover 19.

[0030] When in use, the first motor 4 is started to drive the rope 7 on the wire drum 6 to rotate through the first rotating shaft 5, thereby driving the outer water collection cylinder 10 and the inner water collection cylinder 14 to descend to the water area to be collected and tested to collect water for subsequent water quality testing. After the two outer water collection cylinders 10 are lowered to a suitable depth (the two can be lowered to the same depth or to different depths for water source collection), the second motor 12 is started to drive the inner water collection cylinder 14 to rotate on the inner wall of the outer water collection cylinder 10 through the second rotating shaft 13, and the first filter screen 16 is rotated to a position corresponding to the second filter screen 18, so that the water in the water area passes through the second filter screen 18, the first filter screen 16, the first water collection trough 15 and the second water collection trough 17. The water enters the inner water collection cylinder 14 for collection and storage. The mesh diameter of the first filter 16 is smaller than the mesh diameter of the second filter 18. The second filter 18 and the first filter 16 filter impurities to prevent excessive impurities in the water source from affecting the water quality detection. When a certain volume of water source is collected, the second motor 12 is started again to drive the inner water collection cylinder 14 to rotate on the inner wall of the outer water collection cylinder 10 through the second rotating shaft 13 and drive the first filter 16 to rotate to a position not corresponding to the second filter 18, thereby preventing the water inside the inner water collection cylinder 14 from flowing out during the rising process. After the collection is completed, the rotary cover 19 is twisted out to pour out the water source collected inside the inner water collection cylinder 14.

[0031] In this embodiment, first grooves 20 are provided on both sides of the inner water collection cylinder 14 close to the first filter screen 16, and a fixing rod 21 is fixedly connected to the inner wall of the first groove 20, and a fixing sleeve 22 is inserted into the outer surface of the fixing rod 21, and a first fixing block 23 is fixedly connected to one side of the fixing sleeve 22, and the first fixing block 23 is fixedly connected to one side of the first filter screen 16.

[0032] When it is necessary to remove the first filter 16 to clean the impurities on its surface, the first filter 16 is pulled to drive the fixing sleeve 22 to move outward on the outer surface of the fixing rod 21, so that the first filter 16 can be removed from the first water collection tank 15 for cleaning, which is convenient for disassembly and installation.

[0033] In this embodiment, second grooves 24 are provided on both sides of the external water collection cylinder 10 close to the second filter screen 18, and the inner wall of the second groove 24 is movably connected with a second fixing block 43, and the second fixing block 43 is fixedly connected to one side of the second filter screen 18. The inner wall of the second groove 24 is fixedly connected with a bolt 25, and the bolt 25 passes through the second fixing block 43, and the outer surface of the bolt 25 is threadedly connected with a nut 26.

[0034] When it is used in practice, when it is necessary to disassemble the second filter screen 18 to clean the impurities on its surface, the nut 26 is unscrewed from the outer surface of the bolt 25, and then the second filter screen 18 is pulled to move outward along the inner wall of the second water collection trough 17 to disassemble and clean it, which is convenient for disassembly and installation.

[0035] In this embodiment, counterweights 27 are fixedly connected to both sides of the outer surface of the lower side of the outer water collection cylinder 10 .

[0036] During specific use, a counterweight block 27 is provided so that the external water sampling barrel 10 can be lowered to the depth of the water area where the water quality is to be tested.

[0037] In this embodiment, placement grooves 28 are equidistantly provided on the upper surface of the movable plate 2, a water tank 29 is placed on the inner wall of the placement groove 28, a partition 30 is fixedly connected to the middle of the inner bottom wall of the water tank 29, and both sides of the upper surface of the movable plate 2 close to the water tank 29 are fixedly connected to fixed plates 31, one side of the fixed plate 31 is fixedly connected to a first electric telescopic rod 32, and one side of the first electric telescopic rod 32 is fixedly connected to a fixed frame 33.

[0038] During specific use, the water tank 29 is placed on the inner bottom wall of the placement groove 28, and the first electric telescopic rods 32 on both sides are started to drive the fixed frames 33 on both sides to move toward each other, so that the fixed frames 33 on both sides fix the water tank 29 on the inner wall of the placement groove 28, which is convenient for fixing and removing the water tank 29. When the inner water collection cylinder 14 has collected the water in the water area, the sleeve 9 can be unscrewed from the outer surface of the mounting block 8 to remove the outer water collection cylinder 10 and the inner water collection cylinder 14, and then the water source collected in the inner water collection cylinder 14 can be poured into the water tank 29 for storage. The partition 30 plays a role of separation, so that the water sources collected at different depths in the same water area can be distinguished and stored in the water tank 29.

[0039] In this embodiment, slide grooves 34 are provided on both sides of the upper surface of the operating table 1, and a third motor 35 is symmetrically fixedly connected to one side of the operating table 1 close to the slide groove 34. A screw rod 36 is fixedly connected to the output end of the third motor 35. The screw rod 36 passes through the slide groove 34, and a slider 37 is threadedly connected to the outer surface of the screw rod 36. The upper surface of the slider 37 is fixedly connected to the lower surface of the movable plate 2, and a control panel 38 is provided on the side of the operating table 1 close to the third motor 35.

[0040] During specific use, through the setting of the slide 34, the slider 37, the screw 36 and the third motor 35, the third motor 35 is started to drive the screw 36 to rotate. The rotation of the screw 36 drives the slider 37 on its outer surface to slide on the inner wall of the slide 34, thereby adjusting the distance between the movable plate 2 and the water area to be collected, so as to facilitate the water collection work. The control panel 38 is electrically connected to the first motor 4, the second motor 12, the third motor 35, and the first electric telescopic rod 32, so that the start and stop of the first motor 4, the second motor 12, the third motor 35, and the first electric telescopic rod 32 can be controlled by controlling the control panel 38, which is convenient to use and easy to operate.

[0041] In this embodiment, the lower surface of the operating table 1 is fixedly connected with the second electric telescopic rods 39 in a rectangular array, and the lower surface of the second electric telescopic rods 39 is fixedly connected with the universal wheels 40 .

[0042] When in use, the second electric telescopic rod 39 can be activated to adjust the height of the operating table 1 for easy use. The universal wheel 40 can be provided to facilitate the movement and fixing of the device, making it easy to use and move.

[0043] Working principle: In use, the device is moved to a suitable position and fixed by the universal wheel 40, the second electric telescopic rod 39 is started to adjust the height of the device, the third motor 35 is started to drive the screw 36 to rotate, and the rotation of the screw 36 drives the slider 37 on its outer surface to slide on the inner wall of the slide 34, thereby adjusting the distance between the movable plate 2 and the water area to be collected, and then the first motor 4 is started to drive the rope 7 on the wire drum 6 to rotate through the first rotating shaft 5, thereby driving the outer water collection cylinder 10 and the inner water collection cylinder 14 to descend to the water area to be collected and tested to collect water sources for subsequent water quality testing. After the two outer water collection cylinders 10 are lowered to a suitable depth (the two can be lowered to the same depth or to different depths for water source collection), the second motor 12 is started to drive the inner water collection cylinder 14 to rotate on the inner wall of the outer water collection cylinder 10 through the second rotating shaft 13, and the first filter screen 16 is rotated to a position corresponding to the second filter screen 18, so that the water in the water area passes through the second filter screen 18, the first filter screen 16, and the first water collection trough. 15 and the second water collection trough 17 enter the inner water collection cylinder 14 for collection and storage. The mesh diameter of the first filter 16 is smaller than the mesh diameter of the second filter 18. The second filter 18 and the first filter 16 play the role of filtering impurities, thereby preventing excessive impurities in the water source from affecting water quality detection. When a certain volume of water source is collected, the second motor 12 is started again to drive the inner water collection cylinder 14 to rotate on the inner wall of the outer water collection cylinder 10 through the second rotating shaft 13 and drive the first filter 16 to rotate to a position not corresponding to the second filter 18, thereby preventing the water inside the inner water collection cylinder 14 from flowing out during the rising process. After the collection is completed, the sleeve 9 is unscrewed from the outer surface of the mounting block 8 to disassemble the outer water collection cylinder 10 and the inner water collection cylinder 14, and then the screw cap 19 is unscrewed so that the water source collected in the inner water collection cylinder 14 can be poured into the water storage tank 29 for storage. The partition 30 plays a role of separation, so that the water sources collected at different depths in the same water area can be distinguished and stored in the water storage tank 29.

[0044] Example 2

[0045] like Figure 7 As shown, the distinguishing feature of this embodiment from the embodiment 1 is that a cover plate 41 is inserted into the upper surface of the water storage tank 29, and label placement grooves 42 are symmetrically fixed on the upper surface of the cover plate 41.

[0046] During specific use, the cover plate 41 and the label placement slot 42 are installed. The label placement slot 42 can be easily distinguished and classified for water sources collected from different water areas or water sources of different depths collected from the same water area for water quality testing. It is easy to use and easy to distinguish.

[0047] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water sampling device for water quality detection, comprising an operating table (1), characterized in that: The upper surface of the operating table (1) is movably connected to a movable plate (2), a support frame (3) is symmetrically fixedly provided on one side of the movable plate (2), a first motor (4) is fixedly connected to one side of the support frame (3), an output end of the first motor (4) is fixedly connected to a first rotating shaft (5), the first rotating shaft (5) passes through the support frame (3), an outer surface of the first rotating shaft (5) is fixedly connected to a wire drum (6), an outer surface of the wire drum (6) is provided with a rope (7), one end of the rope (7) is fixedly connected to a mounting block (8), a sleeve (9) is threadedly connected to the lower surface of the mounting block (8), and an external water collection cylinder (10) is fixedly connected to the outer surface of the sleeve (9); The sleeve (9) passes through the upper part of the outer water collection cylinder (10); a baffle (11) is fixedly connected to the inner wall of the sleeve (9); a second motor (12) is fixedly connected to the upper surface of the baffle (11); a second rotating shaft (13) is fixedly connected to the output end of the second motor (12); an inner water collection cylinder (14) is fixedly connected to the lower surface of the second rotating shaft (13); the inner water collection cylinder (14) is rotatably connected to the inner wall of the outer water collection cylinder (10); first water collection grooves (15) are provided on both sides of the inner water collection cylinder (14); a first filter screen (16) is movably connected to the inner wall of the first water collection groove (15); second water collection grooves (17) are provided on both sides of the outer water collection cylinder (10); a second filter screen (18) is movably connected to the inner wall of the second water collection groove (17); a screw cap (19) is threadedly connected to the inner wall of the lower side of the outer water collection cylinder (10).

2. A water sampling device for water quality detection according to claim 1, characterized in that: The inner water collection cylinder (14) is provided with first grooves (20) on both sides close to the first filter screen (16); a fixing rod (21) is fixedly connected to the inner wall of the first groove (20); a fixing sleeve (22) is inserted into the outer surface of the fixing rod (21); a first fixing block (23) is fixedly connected to one side of the fixing sleeve (22); and the first fixing block (23) is fixedly connected to one side of the first filter screen (16).

3. A water sampling device for water quality detection according to claim 1, characterized in that: The external water collection cylinder (10) is provided with a second groove (24) on both sides close to the second filter screen (18); the inner wall of the second groove (24) is movably connected to a second fixing block (43); the second fixing block (43) is fixedly connected to one side of the second filter screen (18); the inner wall of the second groove (24) is fixedly connected to a bolt (25); the bolt (25) passes through the second fixing block (43); and the outer surface of the bolt (25) is threadedly connected to a nut (26).

4. A water sampling device for water quality detection according to claim 1, characterized in that: Counterweight blocks (27) are fixedly connected to both sides of the outer surface of the lower side of the external water collection cylinder (10).

5. A water sampling device for water quality detection according to claim 1, characterized in that: The upper surface of the movable plate (2) is provided with placement grooves (28) at equal intervals, a water tank (29) is placed on the inner wall of the placement groove (28), a partition (30) is fixedly connected to the middle of the inner bottom wall of the water tank (29), and both sides of the upper surface of the movable plate (2) close to the water tank (29) are fixedly connected to fixed plates (31), one side of the fixed plate (31) is fixedly connected to a first electric telescopic rod (32), and one side of the first electric telescopic rod (32) is fixedly connected to a fixed frame (33).

6. A water sampling device for water quality detection according to claim 1, characterized in that: Slide grooves (34) are provided on both sides of the upper surface of the operating table (1); a third motor (35) is symmetrically fixedly connected to one side of the operating table (1) close to the slide groove (34); a screw rod (36) is fixedly connected to the output end of the third motor (35); the screw rod (36) passes through the slide groove (34); a slider (37) is threadedly connected to the outer surface of the screw rod (36); the upper surface of the slider (37) is fixedly connected to the lower surface of the movable plate (2); and a control panel (38) is provided on one side of the operating table (1) close to the third motor (35).

7. A water sampling device for water quality detection according to claim 1, characterized in that: The lower surface of the operating table (1) is fixedly connected to second electric telescopic rods (39) in a rectangular array, and the lower surface of the second electric telescopic rods (39) is fixedly connected to universal wheels (40).

8. A water sampling device for water quality detection according to claim 5, characterized in that: A cover plate (41) is inserted into the upper surface of the water storage tank (29), and a label placement groove (42) is symmetrically fixed on the upper surface of the cover plate (41).

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