A water quality sampling device for environmental testing

Abstract

The present invention relates to the field of environmental testing technology, and in particular to a water quality sampling device for environmental testing, comprising a base, a support plate and a sampling bottle, wherein four support plates are provided and fixedly connected to the top of the base at equal angles, and the sampling bottle is movably mounted on the base, and two cylinders are fixedly mounted on the outer wall of each support plate, and a slide is slidably mounted inside the cylinder, and a bolt is fixedly mounted on the side of the slide away from the support plate, and the bolt passes through the cylinder and is threadedly connected to the cylinder, and a sleeve 1 is fixedly mounted near the bottom of the inner wall of the support plate, and a slide is also provided on the support plate, and a slide is slidably mounted inside the slide, and a sleeve 2 is rotatably mounted on the slide, a clamping mechanism is provided on the sleeve 1, and a limiting mechanism is provided on the sleeve 2, and sampling bottles of different materials and specifications can be installed through the clamping mechanism and the limiting mechanism.

Description

Technical Field

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

[0002] With the continuous development of society, environmental protection issues have gradually received attention. Water pollution is one of the most important environmental issues. In the process of water pollution treatment, sampling devices are generally used to sample the water pollution source to analyze various water quality parameters, so as to facilitate water treatment and ensure the use of water quality.

[0003] When sampling water quality, different types of water quality require sampling bottles made of different materials, such as glass bottles, plastic bottles, etc., and the specifications of the sampling bottles are also different. In the existing technology, one sampling device can usually only sample one type of water quality, which has great limitations. In addition, when sampling different types of water quality, it is necessary to carry multiple sampling devices, which is inconvenient to carry. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that a sampling device existing in the above background technology can only sample one type of water quality, which has great limitations, and when sampling different types of water quality, it is necessary to carry multiple sampling devices, which is inconvenient to carry.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel is interlocked.

[0007] Preferably, a piston rod is slidably mounted inside the sleeve one and the sleeve two, and a spring is provided on the piston rod, one end of the spring is fixed to the piston rod, and the other end of the spring is fixed to the inner wall of the sleeve one or the sleeve two.

[0008] Preferably, the clamping mechanism includes a pressure plate and an air cushion. The pressure plate is fixedly connected to one end of the piston rod on sleeve one and passes through sleeve one. The pressure plate is arranged in an arc shape. The end of the pressure plate away from the piston rod is fixedly connected to the air cushion. The interior of the air cushion is filled with air, and the air cushion abuts against the sampling bottle.

[0009] Preferably, the limiting mechanism includes a rubber ball, the rubber ball is fixed to the piston rod on the sleeve 2 and passes through one end of the sleeve 2, and the rubber ball is semicircular and abuts against the arc-shaped bottle body below the bottle mouth of the sampling bottle.

[0010] Preferably, a threaded rod is rotatably installed inside the slide, and the slide is threadedly connected to the threaded rod, and the support plate is symmetrically provided with guide grooves on both sides of the slide, and the bottom of the slide is fixedly connected to two symmetrically arranged slide rods, and the two slide rods are respectively slidably connected inside the guide groove, and a connecting shaft is rotatably installed between the two slide rods, and the sleeve 2 is rotatably installed on the connecting shaft, one end of the connecting shaft passes through one of the slide rods and is rotatably installed with a bevel gear 1, and the end of the slide away from the sampling bottle is fixedly connected to a support seat 2, and two support rods 2 are symmetrically fixed on the support seat 2, and the end of the support rod 2 is hemispherical, and a rotating wheel 1 is provided on the outside of the support plate, and two annular grooves 1 are opened on the rotating wheel 1 and symmetrically arranged up and down, and the two support rods 2 are respectively slidably connected to the two annular grooves 1.

[0011] Preferably, the upper end of the threaded rod passes through the support plate and extends to the outside, and a gear 1 is fixedly connected to the upper end of the threaded rod, a rotating wheel 2 is provided above the support plate, two annular grooves 2 symmetrically arranged up and down are opened on the rotating wheel 2, and a support seat 1 is fixedly connected to the outer wall of the support plate near the upper position, two support rods 1 are symmetrically fixed to the support seat 1, and the two support rods 1 are respectively slidably connected to the two annular grooves 2, the gear 1 is meshedly connected to the rotating wheel 2, and handles are fixedly connected to the outer walls of the rotating wheel 2 and the rotating wheel 1.

[0012] Preferably, a connecting block is fixedly connected to the side wall of the slide, and an I-shaped frame is installed at the bottom of the connecting block, and a rotating shaft 1 and a rotating shaft 2 are rotatably connected to the I-shaped frame, and a bevel gear 2 is fixedly connected to the rotating shaft 2, and the bevel gear 2 is meshed with the bevel gear 1, and a gear 2 is fixedly connected to the rotating shaft 1, and the gear 2 is meshed with the rotating wheel 1, and a pulley 1 is also fixedly connected to the rotating shaft 1 above the gear 2, and a pulley 2 is also fixedly connected to the rotating shaft 2 above the bevel gear 2, and a belt is rotatably fitted between the pulley 2 and the pulley 1.

[0013] Preferably, a blind hole is provided on the upper surface of each support plate, and an auxiliary rod is rotatably installed inside the blind hole. The auxiliary rod is set to be "L"-shaped, and the other end of the auxiliary rod is fixedly connected to a ring. The axis of the ring coincides with the axis of the sampling bottle. A card column is inserted in the ring, and the diameter of one end of the card column is larger than the diameter of the ring, and the upper end of the card column is fixedly connected to a connecting ring.

[0014] Preferably, a clamping seat is fixedly connected to the upper surface of each support plate, a first clamping rod is threadedly connected to the clamping seat, and a second clamping rod is threadedly connected to the second support seat.

[0015] The present invention proposes a water quality sampling device for environmental testing, which has the following beneficial effects:

[0016] 1. Through the coordination of the cylinder, bolts, sleeve 1, sleeve 2 and piston rod, sampling bottles of different materials and specifications can be installed. At the same time, glass sampling bottles can also be buffered and protected to avoid damage to the glass sampling bottles and other objects when the sampling bottles are thrown out or retrieved, thereby affecting the water quality sampling work. At the same time, the pressure on the plastic sampling bottles can be adjusted to avoid dents in the plastic sampling bottles, thereby affecting the water quality sampling work.

[0017] 2. Through the cooperation of the slide, gear 1 and other structures, use the handle to rotate the wheel 2, which drives the threaded rod to rotate through gear 1. The threaded rod can drive the slide to move up and down, so that the piston rod on the sleeve 2 can be raised and lowered to limit and fix the sampling bottles at different heights.

[0018] 3. Through the cooperation of the structures such as the first wheel, the first bevel gear, and the first pulley, after adjusting the height of the sampling bottle, use the handle to rotate the first wheel so that the first wheel drives the second gear to rotate. The second gear drives the second bevel gear to rotate through the cooperation of the first pulley, the second pulley and the belt. The second bevel gear is engaged with the first bevel gear, thereby driving the connecting shaft to rotate, and adjusting the angle of the second sleeve so that the second sleeve can be perpendicular to the arc-shaped bottle body of different curvatures below the bottle mouth to the greatest extent, thereby ensuring the maximum supporting force when abutting the bottle body at this location, avoiding the generated component force to form friction and reduce the effect of the limit fixation.

[0019] 4. This application adopts manual method when installing the sampling bottle and adjusting the limit height, angle and other parameters. Considering that most of the sampling is carried out outdoors, the sampling time is long and the number of samples is large, the manual method can avoid the inability to complete the sampling work due to insufficient energy, and the sampling device needs to enter the water. If it is driven by electricity, it is easy to cause damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0023] Figure 4 For the present invention Figure 1 A magnified view of the structure at point A;

[0024] Figure 5 Schematic diagram of the connection structure of the auxiliary rod in the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure of the first clamping rod and the second clamping rod in the present invention;

[0026] Figure 7 Schematic diagram of the structure inside the cylinder in the present invention;

[0027] Figure 8 This is a schematic diagram of the structure inside the second sleeve of the present invention;

[0028] Figure 9 It is a structural schematic diagram of the rubber ball in the present invention.

[0029] In the figure: 1. Base; 2. Support plate; 3. Cylinder; 4. Bolt; 5. Rotor 1; 6. Slide; 7. Sleeve 1; 8. Pressure plate; 9. Air cushion; 10. Sampling bottle; 11. Handle; 12. Piston rod; 13. Gear 1; 14. Auxiliary rod; 15. Sleeve 2; 16. Slide; 17. Support seat 1; 171. Support rod 1; 18. Annular groove 1; 19. Support seat 2; 191. Support rod 2; 20. Guide groove; 21. Rotor 2; 22. Slide 23. Bellows; 24. Bevel gear 1; 25. Bevel gear 2; 26. Rotating shaft 1; 27. I-shaped frame; 28. Connecting block; 29. ​​Threaded rod; 30. Pulley 1; 31. Gear 2; 32. Belt; 33. Pulley 2; 34. Rotating shaft 2; 35. Clamping seat; 36. Clamping rod 1; 37. Connecting ring; 38. Ring; 39. Clamping column; 40. Clamping rod 2; 41. Spring; 42. Slide plate; 43. Rubber ball; 44. Connecting shaft; 45. Annular groove 2. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] Refer to the attached Figure 1-9: In this embodiment, a water quality sampling device for environmental testing includes a base 1, a support plate 2 and a sampling bottle 10. The support plate 2 is provided with four and fixedly connected to the top of the base 1 at equal angles. The sampling bottle 10 is movably installed on the base 1. The sampling bottle 10 is used to sample water quality. Two cylinders 3 are fixedly connected to the outer wall of each support plate 2. A slide 42 is slidably installed inside the cylinder 3. The slide 42 is fixedly connected to the side away from the support plate 2. The bolt 4 passes through the cylinder 3 and is threadedly connected to the cylinder 3. A sleeve 7 is fixedly connected to the inner wall of the support plate 2 near the bottom. A slide groove 6 is also provided on the support plate 2. A slide 16 is slidably installed inside the slide groove 6. A sleeve 2 15 is rotatably installed on the slide 16. A bellows 23 is installed on the side of the sleeve 2 15 close to the support plate 2. The bellows 23 can be extended or shortened by a certain distance, thereby cooperating with the up and down movement of the sleeve 2 15 to support There are two air channels inside the plate 2. The cylinder 3 at the bottom is connected to the sleeve 1 7 through one air channel, and the cylinder 3 at the top is connected to the sleeve 2 15 through the other air channel through the bellows 23. A clamping mechanism is provided on the sleeve 1 7, and a limiting mechanism is provided on the sleeve 2 15. The sampling bottle 10 is movably installed by the clamping mechanism and the limiting mechanism. When sampling water quality, different types of water quality require sampling bottles 10 of different materials, such as glass bottles, plastic bottles and other different materials. The specifications of the sampling bottles 10 are also different. The sampling bottles 10 of different materials and specifications can be installed and fixed by the clamping mechanism and the limiting mechanism, avoiding the problem in the prior art that one sampling device can only sample one type of water quality, which is very limited, and when sampling different types of water quality, it is necessary to carry multiple sampling devices, which is inconvenient to carry.

[0032] A piston rod 12 is slidably installed inside sleeve one 7 and sleeve two 15, and a spring 41 is provided on the piston rod 12. One end of the spring 41 is fixed to the piston rod 12, and the other end of the spring 41 is fixed to the inner wall of sleeve one 7 or sleeve two 15. The setting of the spring 41 can play a buffering and protective role when clamping the glass sampling bottle 10. When the water surface is higher than the sampling position of the staff, such as when sampling on a bridge or a levee, if the glass sampling bottle 10 is not buffered and protected, then when the glass sampling bottle 10 is thrown out and pulled back, the glass sampling bottle 10 is prone to collide with the bridge body or other hard places, thereby causing damage to the glass sampling bottle 10 and affecting the water quality sampling work.

[0033] The clamping mechanism includes a pressure plate 8 and an air cushion 9. The pressure plate 8 is fixedly connected to one end of the piston rod 12 on the sleeve 7, which passes through the sleeve 7. The pressure plate 8 is arranged in an arc shape. The air cushion 9 is fixedly connected to the end of the pressure plate 8 away from the piston rod 12. The interior of the air cushion 9 is filled with air, and the air cushion 9 is in contact with the sampling bottle 10. The setting of the air cushion 9 can increase the contact area with the sampling bottles 10 of different diameters, thereby improving the clamping stability of the sampling bottle 10, and at the same time can play a certain buffering and protective role.

[0034] The limiting mechanism includes a rubber ball 43, which is fixed to the piston rod 12 on the sleeve 15 and passes through one end of the sleeve 15, and the rubber ball 43 is semicircular. The rubber ball 43 abuts against the arc-shaped bottle body below the bottle mouth of the sampling bottle 10. The sampling bottle 10 can be structurally limited by the limiting mechanism. If the bottle body is only fixed radially and there is no axial limitation, the limitation only by friction may easily cause the glass sampling bottle 10 with a smooth surface to slip. The rubber ball 43 is soft, which can prevent the rigid material from being damaged when abutting against the sampling bottle 10, and can also play a certain role in buffering and protection. The semicircular rubber ball 43 is easier to fit and abut against sampling bottles 10 of different shapes.

[0035] A threaded rod 29 is rotatably installed inside the slide 6, and the slide 16 is threadedly connected to the threaded rod 29. Guide grooves 20 are symmetrically provided on both sides of the slide 6 on the support plate 2. The bottom end of the slide 16 is fixed with two symmetrically arranged slide rods 22, and the two slide rods 22 are respectively slidably connected to the inside of the guide groove 20. The cooperation between the guide groove 20 and the slide rod 22 can ensure the stability of the slide 16 when sliding. A connecting shaft 44 is rotatably installed between the two slide rods 22, and the sleeve 2 15 is rotatably installed on the connecting shaft 44. The rotatable sleeve 25 can enable the piston rod 12 to maintain a vertical relationship to the greatest extent when it abuts against the arc-shaped bottle body under the bottle mouth of different curvatures, thereby providing maximum supporting force for the bottle body. In this way, the sampling bottle can be prevented from falling off when it is first shaken and washed in water multiple times.

[0036] One end of the connecting shaft 44 passes through one of the slide rods 22 and is rotatably installed with a bevel gear 24. The end of the slide 16 away from the sampling bottle 10 is fixedly connected to a support seat 19. Two support rods 191 are symmetrically fixed to the support seat 19, and the ends of the support rods 191 are hemispherical. A rotating wheel 5 is provided on the outside of the support plate 2. Two annular grooves 18 symmetrically arranged in an upper and lower manner are opened on the rotating wheel 5. The two support rods 191 are respectively slidably connected to the two annular grooves 18.

[0037] The upper end of the threaded rod 29 extends through the support plate 2 to the outside, and the upper end of the threaded rod 29 is fixedly connected to the gear 13. A rotating wheel 21 is provided above the support plate 2. Two annular grooves 45 are symmetrically arranged in an upper and lower direction on the rotating wheel 21. A support seat 17 is fixedly connected to the outer wall of the support plate 2 near the upper part. Two support rods 171 are symmetrically fixed to the support seat 17. The two support rods 171 are respectively slidably connected to the two annular grooves 45. The gear 13 is meshed with the rotating wheel 21. The outer walls of the rotating wheel 21 and the rotating wheel 15 are both fixedly connected to the handle 11.

[0038] Through the cooperation of the threaded rod 29, the gear 13 and the second wheel 21, the handle 11 is used to rotate the second wheel 21, and the second wheel 21 drives the threaded rod 29 to rotate through the gear 13. The threaded rod 29 can drive the slide 16 to move up and down, so that the piston rod 12 on the second sleeve 15 can be raised and lowered to limit and fix the sampling bottles 10 at different heights.

[0039] A connecting block 28 is fixed to the side wall of the slide 16, and an I-shaped frame 27 is installed at the bottom of the connecting block 28. The I-shaped frame 27 is rotatably connected to a rotating shaft 1 26 and a rotating shaft 2 34. A bevel gear 25 is fixed to the rotating shaft 2 34, and the bevel gear 25 is meshed with the bevel gear 1 24. A gear 2 31 is fixed to the rotating shaft 1 26, and the gear 2 31 is meshed with the runner 1 5. A pulley 1 30 is also fixed to the rotating shaft 1 26 above the gear 2 31, and a pulley 2 33 is also fixed to the rotating shaft 2 34 above the bevel gear 2 25. A belt 32 is rotatably fitted between the pulley 2 33 and the pulley 1 30.

[0040] When the slide 16 is raised or lowered, it can also synchronously drive the parts on the I-shaped frame 27 and drive the wheel 1 5 to be raised or lowered synchronously through the support seat 2 19, so as to facilitate the subsequent adjustment of the angle of the sleeve 2 15 after the lifting. After the sleeve 2 15 is raised or lowered, the wheel 1 5 can be rotated by the handle 11, so that the wheel 1 5 drives the gear 2 31 to rotate. The gear 2 31 drives the bevel gear 2 25 to rotate through the cooperation of the pulley 1 30, the pulley 2 33 and the belt 32. The bevel gear 25 is engaged with the bevel gear 1 24, thereby driving the connecting shaft 44 to rotate and adjusting the angle of the sleeve 2 15.

[0041] A blind hole is provided on the upper surface of each support plate 2, and an auxiliary rod 14 is rotatably installed inside the blind hole. The auxiliary rod 14 is set in an "L" shape, and the other end of the auxiliary rod 14 is fixedly connected to a collar 38. The axis of the collar 38 coincides with the axis of the sampling bottle 10. This ensures that when the sampling bottle is pulled up by a rope, the sampling bottle will not tilt, thereby preventing the water sample from flowing out. A clamping column 39 is inserted in the collar 38. The diameter of one end of the clamping column 39 is larger than the diameter of the collar 38, and the upper end of the clamping column 39 is fixedly connected to a connecting ring 37.

[0042] A clamping seat 35 is also fixed to the upper surface of each support plate 2, and a clamping rod 36 is threadedly connected to the clamping seat 35. The clamping rod 36 is used to limit and fix the gear 13, thereby fixing the position of the sleeve 2 15 after lifting and lowering. A clamping rod 2 40 is threadedly connected to the support seat 2 19, and the clamping rod 2 40 is used to limit and fix the rotating wheel 15, thereby fixing the sleeve 2 15 after the angle is adjusted.

[0043] Working principle:

[0044] When in use, first rotate each auxiliary rod 14 to a position that does not affect the placement of the sampling bottle 10, then place the sampling bottle 10 on the base 1, and then rotate the bolt 4 at the bottom. The cylinder 3 is filled with air, and the rotation of the bolt 4 will drive the slide plate 42 to move, thereby squeezing the air through one of the air channels inside the support plate 2 to flow into the sleeve 7 at the bottom. The air flow drives the piston rod 12 inside the sleeve 7 to squeeze the spring 41 and drive the pressure plate 8 close to the sampling bottle 10. The air cushion 9 on the pressure plate 8 abuts against the sampling bottle 10, thereby clamping and fixing the bottom of the sampling bottle 10. The cooperation of the bolt 4 and the slide plate 42 can not only provide power for the movement of the piston rod 12, but also adjust the elastic force of the spring 41, so that when the plastic sampling bottle 10 is clamped and fixed and subsequently limited, excessive squeezing is avoided to cause dents in the plastic sampling bottle 10, thereby affecting the amount of water quality sampling.

[0045] Then, the handle 11 is used to rotate the wheel 21. Since the wheel 21 is engaged with the gear 13, it can drive the gear 13 to rotate. The gear 13 drives the threaded rod 29 to rotate. The threaded rod 29 can drive the slide 16 to move up and down, so that the sleeve 2 15 moves to different positions to limit and fix the sampling bottles 10 at different heights. Then, by rotating the clamping rod 1 36, the clamping rod 1 36 is moved in the direction close to the gear 13, and the clamping rod 1 36 is used to limit and fix the gear 13, thereby fixing the position of the sleeve 2 15 after it is raised and lowered.

[0046] Then, the handle 11 is used to rotate the wheel 15, so that the wheel 15 drives the gear 2 31 to rotate. The gear 2 31 drives the bevel gear 2 25 to rotate through the cooperation of the pulley 1 30, the pulley 2 33 and the belt 32. The bevel gear 25 is meshed with the bevel gear 1 24, thereby driving the connecting shaft 44 to rotate, and adjusting the angle of the sleeve 2 15 so that the sleeve 2 15 can be perpendicular to the arc-shaped bottle body of different curvatures below the bottle mouth to the greatest extent, thereby ensuring the maximum supporting force when abutting the bottle body at this location, avoiding the generated component force to form friction and reduce the effect of the limit fixation. After adjusting the angle of the sleeve 2 15, the clamping rod 2 40 is rotated to fix the wheel 1 5 through the clamping rod 2 40, thereby fixing the adjusted angle of the sleeve 2 15.

[0047] Then, by turning the bolt 4 at the top, the slide 42 directs the airflow inside the cylinder 3 to the inside of the second sleeve 15 through the bellows 23, driving the piston rod 12 inside the second sleeve 15 to move toward the sampling bottle 10. The rubber ball 43 on the piston rod 12 abuts against the sampling bottle 10 to limit the position.

[0048] Finally, rotate all the auxiliary rods 14 to the position where the axis of the ring 38 coincides with the axis of the sampling bottle 10, and then insert the clamping column 39 into the inside of the ring 38. The diameter of the connecting ring 37 is smaller than the diameter of the ring 38. Tie the rope to the connecting ring 37, and then you can start sampling water quality.

[0049] Although the invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A water quality sampling device for environmental testing, comprising a base, a support plate, and a sampling bottle, wherein four support plates are provided and fixedly connected to the top of the base at equal angles, and the sampling bottle is movably mounted on the base, characterized in that: The outer wall of each support plate is fixedly connected to two cylinders, and a slide is slidably installed inside the cylinder. A bolt is fixedly connected to the side of the slide away from the support plate. The bolt passes through the cylinder and is threadedly connected to the cylinder. A sleeve one is fixedly connected to the position near the bottom of the inner wall of the support plate. The support plate is also provided with a slide groove, and a slide is slidably installed inside the slide groove. Sleeve two is rotatably installed on the slide. A bellows is installed on the side of the sleeve two close to the support plate. Two air passages are provided inside the support plate. The cylinder at the bottom is connected with sleeve one through one air passage, and the cylinder at the top is connected with sleeve two through the other air passage through the bellows. A clamping mechanism is provided on sleeve one, and a limiting mechanism is provided on sleeve two, and the sampling bottle is movably installed through the clamping mechanism and the limiting mechanism; A threaded rod is rotatably installed inside the slide, and the slide is threadedly connected to the threaded rod. Guide grooves are symmetrically provided on both sides of the slide on the support plate. The bottom end of the slide is fixedly connected to two symmetrically arranged slide rods, and the two slide rods are slidably connected to the inside of the guide groove. A connecting shaft is rotatably installed between the two slide rods, and the sleeve is rotatably installed on the connecting shaft. One end of the connecting shaft passes through one of the slide rods and is rotatably installed with a bevel gear. The end of the slide away from the sampling bottle is fixedly connected to a support seat 2, and two support rods 2 are symmetrically fixed on the support seat 2, and the end of the support rod 2 is hemispherical. A rotating wheel 1 is provided on the outside of the support plate, and two annular grooves 1 symmetrically arranged up and down are opened on the rotating wheel 1. The two support rods 2 are slidably connected to the two annular grooves 1 respectively.

2. A water quality sampling device for environmental testing according to claim 1, characterized in that: A piston rod is slidably mounted inside the first sleeve and the second sleeve, and a spring is provided on the piston rod. One end of the spring is fixed to the piston rod, and the other end of the spring is fixed to the inner wall of the first sleeve or the second sleeve.

3. The water quality sampling device for environmental testing according to claim 2, characterized in that: The clamping mechanism includes a pressure plate and an air cushion. The pressure plate is fixedly connected to the piston rod on sleeve one, which passes through one end of sleeve one. The pressure plate is arranged in an arc shape. The end of the pressure plate away from the piston rod is fixedly connected to an air cushion. The interior of the air cushion is filled with air, and the air cushion abuts against the sampling bottle; the limiting mechanism includes a rubber ball, which is fixed to the piston rod on sleeve two, which passes through one end of sleeve two, and the rubber ball is semicircular. The rubber ball abuts against the arc-shaped bottle body below the bottle mouth of the sampling bottle.

4. The water quality sampling device for environmental testing according to claim 1, characterized in that: The upper end of the threaded rod passes through the support plate and extends to the outside, and the upper end of the threaded rod is fixedly connected to a gear 1, a rotating wheel 2 is provided above the support plate, and two annular grooves 2 are symmetrically arranged up and down are opened on the rotating wheel 2, and a support seat 1 is fixedly connected to the outer wall of the support plate near the upper position, and two support rods 1 are symmetrically fixed to the support seat 1, and the two support rods 1 are respectively slidably connected to the two annular grooves 2, and the gear 1 is meshed with the rotating wheel 2, and handles are fixedly connected to the outer walls of the rotating wheel 2 and the rotating wheel 1.

5. The water quality sampling device for environmental testing according to claim 4, characterized in that: A connecting block is fixedly connected to the side wall of the slide, and an I-shaped frame is installed at the bottom of the connecting block. The I-shaped frame is rotatably connected to a rotating shaft 1 and a rotating shaft 2. The rotating shaft 2 is fixedly connected to a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1. The rotating shaft 1 is fixedly connected to a gear 2, and the gear 2 is meshed with the rotating wheel 1. The rotating shaft 1 is also fixedly connected to a pulley 1 above the gear 2, and the rotating shaft 2 is also fixedly connected to a pulley 2 above the bevel gear 2, and a belt is rotatably fitted between the pulley 2 and the pulley 1.

6. The water quality sampling device for environmental testing according to claim 1, characterized in that: A blind hole is provided on the upper surface of each support plate, and an auxiliary rod is rotatably installed inside the blind hole. The auxiliary rod is set to be "L"-shaped, and the other end of the auxiliary rod is fixedly connected to a ring. The axis of the ring coincides with the axis of the sampling bottle. A card column is inserted in the ring, and the diameter of one end of the card column is larger than the diameter of the ring, and the upper end of the card column is fixedly connected to a connecting ring.

7. The water quality sampling device for environmental testing according to claim 1, characterized in that: A clamping seat is also fixedly connected to the upper surface of each support plate, a first clamping rod is threadedly connected to the clamping seat, and a second clamping rod is threadedly connected to the second support seat.

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