Layered water taking device for water quality detection

Abstract

The invention discloses a water quality detection layered water taking device, which comprises: a sampling box body, which is internally provided with a driving cavity at the upper part, a hose cavity at the lower part, a pipe placing cavity at the rear end, and a placing table at the lower part of the front end; the sample cylinder is arranged on the front side of the sampling box body; the hose adjusting device is arranged in the hose cavity; the magnetic suction type pipe placing mechanism is arranged at the lower end of the pipe placing cavity. The magnetic force between the annular magnet and the pyramid-shaped falling block is utilized, the annular magnet is controlled to be powered off in sequence, meanwhile, the descending length of the water taking hose is controlled, the pyramid-shaped falling block can be arranged in a fixed-distance layering mode according to the actual sampling requirement, and therefore a worker can conveniently take and sample water in a layering mode in a sampling water area, and the sampling efficiency is improved. The sampling efficiency is effectively improved, the layering distance is adjustable, and the application range of the device can be widened.

Description

Technical Field

[0001] This invention relates to the field of water quality testing technology, and in particular to a stratified water sampling device for water quality testing. Background Technology

[0002] Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants, and their changing trends, and evaluating the water quality status. The monitoring scope is very broad, including unpolluted and polluted natural water and various industrial wastewater. In order to ensure that water quality at different depths can be detected, it is necessary to perform stratified sampling at different depths of the water body in water quality monitoring.

[0003] While existing stratified sampling devices can sample different depths of a single body of water, the intervals between stratified sampling are mostly fixed, making it impossible to adjust the spacing between each sampling layer according to actual usage needs. This limits the use of the device, and the sampling depths also have large errors during the sampling process, affecting the sampling results. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a stratified water sampling device for water quality testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stratified water sampling device for water quality testing, comprising:

[0006] The sampling chamber has a drive chamber at the top, a flexible tube chamber at the bottom, a tube placement chamber at the rear, and a placement platform at the bottom of the front.

[0007] A small vacuum pump is installed in the drive chamber, with an air extraction pipe installed at its air inlet and an air extraction horizontal pipe installed at one end of the air extraction pipe.

[0008] A geared motor is installed inside the drive chamber and located on one side of the small vacuum pump, with a bevel gear mounted on its rotating end;

[0009] The sample tube is located on the front side of the sampling box and above the placement platform. It is tapered at the top and has a three-way pipe installed at the top. The upper end of the three-way pipe is a vent and a solenoid valve is installed there. The other end of the three-way pipe is inserted into the drive chamber and a one-way valve is installed there. It is connected to the horizontal suction pipe. The lower end of the tube is equipped with a discharge pipe and a discharge solenoid valve. An annular float is installed inside the tube. A sealing plate is installed above the annular float and connected by a support rod. A water suction pipe is installed on the side surface of the tube and is inserted into the drive chamber.

[0010] Adjusting hose device, disposed within the hose cavity, includes:

[0011] The adjustment chamber is located on both sides inside the flexible tube cavity. An adjustment screw is set at the center of the chamber and connected by a bearing. The upper end of the adjustment screw is inserted into the drive cavity. A pulley is installed on the upper end of the adjustment screw. A synchronous belt is fitted between the pulleys on the two adjustment screws. A second bevel gear is installed on the upper end of one of the adjustment screws. The second bevel gear meshes with the first bevel gear. A strip-shaped adjustment hole is set on its side surface.

[0012] An adjusting crossbar is located within the adjusting cavity and threaded onto the adjusting screw. Several adjusting shafts are installed between the adjusting crossbars in the two adjusting cavities, and are evenly distributed.

[0013] The joint shaft is located inside the strip-shaped adjustment hole;

[0014] The fixed shafts are evenly installed above the inside of the flexible tube cavity, located between the two adjustment cavities, and parallel to the adjustment shafts, and are staggered.

[0015] The rotating sleeve is movably mounted on the fixed shaft and the adjusting shaft, and is limited in position, with limit baffles at both ends;

[0016] The water intake hose is located inside the hose cavity and is fitted onto the rotating sleeve in a serpentine pattern. One end of the hose is inserted into the drive cavity and connected to the water pumping pipe.

[0017] The conveying wheels are evenly arranged in the discharge chamber and correspond to the position of the rotating sleeve. The water intake hose is fitted onto the discharge chamber. The outermost conveying wheel has its shaft extending out of the discharge chamber and is equipped with an angle sensor.

[0018] The magnetic tube-feeding mechanism is located at the lower end of the tube-feeding cavity.

[0019] Furthermore, the magnetic tube-releasing mechanism includes several tube-releasing ports evenly distributed at the lower end of the tube-releasing cavity, with the water intake hose extending out of the tube-releasing cavity through the tube-releasing ports. An annular magnet is installed at the lower end of the tube-releasing cavity and corresponds to the position of the tube-releasing ports. A square cone-shaped drop block is attracted below the annular magnet and is connected to the water intake hose.

[0020] Furthermore, the square cone-shaped drop block has a square cone-shaped water pumping chamber inside, which is connected to a water intake hose. Several water pumping holes are opened on the side surface of the square cone-shaped water pumping chamber, and the several water pumping holes are evenly distributed on the side surface of the square cone-shaped drop block.

[0021] Furthermore, the upper surface of the square pyramidal drop block has a snap-fit ​​groove, with one end and the upper end of the snap-fit ​​groove being open. One end of the square pyramidal drop block is provided with a snap-fit ​​seat, which has a hose hole. An adjustment groove is provided inside the snap-fit ​​seat, and a fixed baffle is provided at one end of the adjustment groove. The fixed baffle is located on one side of the hose hole. A fixed extrusion protrusion is installed at the center of the side surface of the fixed baffle and inserted into the hose hole. Hydraulic telescopic cylinders are installed at both ends of the side surface of the fixed baffle. A movable baffle is provided at the telescopic end of the hydraulic telescopic cylinder and is located on the other side of the hose hole. A long extrusion protrusion is installed on the side surface of the movable baffle and inserted into the hose hole. A compression spring is provided between the movable baffle and the adjustment groove.

[0022] Furthermore, a linkage hydraulic cylinder is installed on both sides of the other end of the adjustment groove. It is vertically installed with its telescopic end facing upward and extending beyond the upper surface of the square cone-shaped drop block. It is connected to the hydraulic telescopic cylinder through a linkage hose.

[0023] Furthermore, the telescopic end of the linkage hydraulic cylinder contracts by utilizing the adsorption force between the annular magnet and the square cone-shaped drop block, causing the hydraulic telescopic cylinder to extend, and the long extrusion protrusion and the fixed extrusion protrusion to loosen the water intake hose, allowing the water intake hose to pass smoothly through the hose hole.

[0024] Furthermore, when the long extrusion protrusion and the fixed extrusion protrusion extrude the water intake hose, they extrude it into an ∞ shape, allowing air and samples to be transported through the gaps on both sides.

[0025] Furthermore, the snap-fit ​​seat on the square pyramidal pendant block is movably fitted into the snap-fit ​​groove of the adjacent square pyramidal pendant block.

[0026] Furthermore, the annular magnet is de-energized sequentially according to the extension length of the water intake hose, causing the square cone-shaped drop block to descend at a fixed distance, thereby performing stratified water intake.

[0027] Beneficial effects

[0028] A stratified water sampling device for water quality testing, manufactured using the technical solution of the present invention, has the following beneficial effects:

[0029] 1. By utilizing the magnetic force between the ring magnet and the square cone-shaped drop block, and controlling the sequential de-energization of the ring magnet, while simultaneously controlling the descent length of the water sampling hose, the square cone-shaped drop block can be set at fixed intervals and layers according to actual sampling needs. This facilitates stratified water sampling by staff, effectively improving sampling efficiency. Furthermore, the adjustable layer spacing expands the device's application range.

[0030] 2. By using the adjustable hose device to make the water intake hoses distributed in a serpentine pattern, the water intake hoses can be fully arranged inside the sampling box, ensuring that the sampling depth of the device can meet the actual needs. Furthermore, the water intake hoses can be raised and lowered by adjusting the upward movement of the shaft, making the raising and lowering control of the water intake hoses more convenient.

[0031] 3. By utilizing the magnetic suction-type pipe release mechanism, the water intake hose can be released individually through the magnetic control of the ring magnet and the square cone-shaped drop block, and the subsequent square cone-shaped drop block can descend with the adjacent water intake hose, thereby enabling the device to quickly perform stratified water intake and making it more convenient to use.

[0032] 4. By utilizing the hydraulic linkage between the hydraulic cylinder and the miniature telescopic cylinder, and through the contact and separation between the square cone-shaped drop block and the ring magnet, it is convenient to control the compression of the water sampling hose by the long extrusion protrusion and the fixed extrusion protrusion, so that the sampling water pipe can be raised and lowered independently, and at the same time, the sampling water pipe is squeezed into an ∞ shape, which can both ensure the normal delivery of the sampling water pipe and fix the sampling water pipe. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a stratified water sampling device for water quality testing according to the present invention;

[0034] Figure 2 This is a partially enlarged view of the sample tube described in this invention;

[0035] Figure 3 This is a side sectional view of the regulating hose device described in this invention;

[0036] Figure 4 This is a cross-sectional view of the tubing cavity described in this invention;

[0037] Figure 5 This is a front view of the magnetic tube-laying mechanism described in this invention;

[0038] Figure 6 This is a partial enlarged view of the square pyramid-shaped falling block after it has fallen, as described in this invention.

[0039] Figure 7 This is a partial top sectional view of the square pyramidal falling block described in this invention when it is below the annular magnet;

[0040] Figure 8 This is a top sectional view of the square cone-shaped falling block after it has descended according to the present invention;

[0041] In the picture:

[0042] 1. Sampling chamber; 11. Drive chamber; 12. Hoses chamber; 13. Placement chamber; 14. Placement stage; 15. Small vacuum pump; 151. Evacuation pipe; 152. Evacuation horizontal pipe; 16. Gear motor; 161. Bevel gear one; 17. Conveyor wheel; 171. Angle sensor.

[0043] 2. Sample cylinder; 21. Three-way pipe; 211. Venting solenoid valve; 212. One-way valve; 22. Discharge pipe; 221. Discharge solenoid valve; 23. Annular float; 231. Support rod; 24. Sealing disc; 25. Pumping pipe.

[0044] 3. Adjusting hose device; 31. Adjusting chamber; 311. Adjusting screw; 312. Pulley; 313. Synchronous belt; 314. Bevel gear II; 315. Strip-shaped adjusting hole; 32. Adjusting crossbar; 321. Adjusting shaft; 33. Fixed shaft; 34. Rotating sleeve; 341. Limiting baffle; 35. Water intake hose.

[0045] 4. Magnetic pipe-feeding mechanism; 41. Pipe-feeding port; 42. Ring magnet; 43. Conical drop block; 431. Conical pumping chamber; 432. Pumping hole; 433. Snap-fit ​​groove; 434. Snap-fit ​​seat; 435. Hose hole; 436. Adjustment groove; 4361. Fixed baffle; 4362. Fixed extrusion protrusion; 4363. Hydraulic telescopic cylinder; 4364. Movable baffle; 4365. Long extrusion protrusion; 4366. Compression spring; 4367. Linked hydraulic cylinder; 4368. Linked hose. Detailed Implementation

[0046] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Please see Figures 1 to 8 A stratified water sampling device for water quality testing includes: a sampling chamber 1, with a driving chamber 11 at the top, a flexible tube chamber 12 at the bottom, a tube placement chamber 13 at the rear end, and a placement platform 14 at the lower front end; a small vacuum pump 15 installed in the driving chamber 11, with an air extraction pipe 151 installed at its air inlet and an air extraction horizontal pipe 152 installed at one end of the air extraction pipe 151; and a geared motor 16 installed in the driving chamber 11 and located on one side of the small vacuum pump 15, with a bevel gear 161 installed at its rotating end.

[0048] In this embodiment of the invention, by using the placement platform 14 and placing it below the sample cylinder 2, the sampling bottle can be quickly placed on the placement platform 14, and the sample can be discharged through the sample cylinder 2, so that the sample can be quickly stored in the sampling bottle, which is convenient for the staff to operate and use.

[0049] In this embodiment of the invention, the small vacuum pump 15 is used to evacuate the sample cylinder 2, creating a negative pressure inside. The negative pressure then allows the water extraction pipe 25 to extract the water sample. The geared motor 16 controls the operation of the adjustable hose device 3, thereby controlling the raising and lowering of the water extraction hose 35, making it convenient for staff to adjust the extension length of the water extraction hose 35.

[0050] In this embodiment of the invention, by setting the tube cavity 13 at the rear end of the sampling box 1, the sampling water pipe 36 can be easily lowered into the water from the rear end of the sampling box 1, thereby facilitating the raising and lowering of the sampling water pipe 36. At the same time, the placement platform 14 is set at the front end of the sampling box 1, which can make the operation more secure for the staff and prevent the staff from falling into the water.

[0051] The sample cylinder 2 is located in front of the sampling box 1 and above the placement platform 14. Its upper end is conical, and a three-way pipe 21 is installed at its upper end. The upper end of the three-way pipe 21 is a vent, and a venting solenoid valve 211 is installed thereon. The other end of the three-way pipe 21 is inserted into the drive chamber 11 and a one-way valve 212 is installed thereon and connected to the suction horizontal pipe 152. A discharge pipe 22 is installed at its lower end, and a discharge solenoid valve 221 is installed on the discharge pipe 22. An annular float 23 is set inside the discharge pipe 22, and a sealing plate 24 is set above the annular float 23 and connected by a support rod 231. A water suction pipe 25 is installed on its side surface and is inserted into the drive chamber 11.

[0052] In this embodiment of the invention, the sample tube 2 is placed above the placement platform 14, and the discharge solenoid valve 221 on the discharge pipe 22 can quickly discharge the sample into the sampling bottle, thereby facilitating the transfer of the sample.

[0053] In this embodiment of the invention, the three-way pipe 21 allows for the one-way flow of the one-way air valve 212, which facilitates the evacuation of the sample cylinder 2 while ensuring its airtightness. The solenoid valve 211 can also be used to connect the sample cylinder 2 with the outside world. This allows residual water inside the sampling water pipe 36 to be quickly discharged by its own gravity, and also facilitates the discharge of samples from inside the sample cylinder 2.

[0054] In this embodiment of the invention, the annular float 23 is designed to float above the water sample and raise the sealing plate 24 to block the three-way pipe 21, thereby preventing the sample from entering the three-way pipe 21, ensuring the safe use of the small vacuum pump 15, and controlling the amount of sample inside the sample cylinder 2 to achieve quantitative sampling.

[0055] The adjusting hose device 3, disposed within the hose cavity 12, includes: an adjusting cavity 31 located on both sides inside the hose cavity 12, with an adjusting screw 311 disposed at its center and connected via a bearing; the upper end of the adjusting screw 311 is inserted into the drive cavity 11; a pulley 312 is mounted on the upper end of the adjusting screw 311; a synchronous belt 313 is fitted between the pulleys 312 on the two adjusting screws 311; a second bevel gear 314 is mounted on the upper end of one of the adjusting screws 311, meshing with a first bevel gear 161; and a strip-shaped adjusting hole 315 is provided on its side surface; and an adjusting crossbar 32 disposed within the adjusting cavity 31 and threaded onto the adjusting... On the screw 311, several adjusting shafts 321 are installed between the adjusting crossbars 32 in the two adjusting chambers 31 and are evenly distributed. The adjusting shafts 321 are located in the strip-shaped adjusting holes 315. The fixed shafts 33 are evenly installed above the inside of the hose cavity 12 and are located between the two adjusting chambers 31. They are parallel to the adjusting shafts 321 and are staggered. The rotating sleeve 34 is movably set on the fixed shaft 33 and the adjusting shaft 321 and is limited. Limiting baffles 341 are set at both ends of the sleeve. The water intake hose 35 is located in the hose cavity 12 and is fitted on the rotating sleeve 34. It is arranged in a serpentine shape. One end of the hose is inserted into the drive cavity 11 and connected to the water pumping pipe 25.

[0056] In this embodiment of the invention, the adjustment screw 311 can be rotated synchronously by the transmission of the pulley 312 and the synchronous belt 313. The adjustment screw 311 is connected to the adjustment crossbar 32 by a thread, which enables the adjustment shaft 321 to move up and down in the strip-shaped adjustment hole 315, thereby controlling the descent and rise of the water intake hose 35.

[0057] In this embodiment of the invention, by utilizing the rotating sleeve 34 provided on the fixed shaft 33 and the adjusting shaft 321, the free rotation of the rotating sleeve 34 can reduce the resistance of the water intake hose 35 moving on it, so that the water intake hose 35 can be raised and lowered quickly.

[0058] In this embodiment of the invention, the water intake hose 35 is distributed in a serpentine pattern on the fixed shaft 33 and the adjusting shaft 321, which can ensure the length of the water intake hose 35 inside the sampling box 1 so that it can meet the actual sampling requirements.

[0059] The conveying wheels 17 are evenly arranged in the discharge chamber 13 and correspond to the position of the rotating sleeve 34. The water intake hose 35 is fitted on the discharge chamber 13. The outermost conveying wheel 17 has its shaft extending out of the discharge chamber 13 and is equipped with an angle sensor 171.

[0060] In this embodiment of the invention, the conveying wheel 17 is made of rubber, which can increase the friction between it and the water intake hose 35, preventing the water intake hose 35 from sliding on it. Then, by using the rotation angle of the conveying wheel 17 and the detection of the angle sensor 171, the moving length of the water intake hose 35 can be determined, thereby accurately controlling the distance between the two square cone-shaped drop blocks 43, so that water can be taken in layers and the layering accuracy can be guaranteed.

[0061] In this embodiment of the invention, the conveying wheel 17 connected to the angle sensor 171 is connected using a conventional shaft and bearing, allowing it to rotate freely. The other conveying wheels 17 are connected using a damping shaft and a damping bearing seat, and their rotational resistance is greater than the total weight of the corresponding square cone-shaped drop block 43. Adjusting bolts and shims are provided on both sides of the damping shaft. The adjusting bolts squeeze the shims, causing the shims to squeeze the conveying wheel 17, thereby generating rotational resistance. The other conveying wheels 17 utilize the rotational resistance of the damping shaft to prevent the water intake hose 35 from dragging the conveying wheel 17 due to its own weight, thereby ensuring that the water intake hose 35 is straight after release and that the square cone-shaped drop block 43 takes water in layers.

[0062] A magnetic tube-releasing mechanism 4 is located at the lower end of the tube-releasing cavity 13. It includes several tube-releasing ports 41 evenly distributed at the lower end of the tube-releasing cavity 13. The water intake hose 35 extends out of the tube-releasing cavity 13 through the tube-releasing ports 41. An annular magnet 42 is installed at the lower end of the tube-releasing cavity 13 and corresponds to the position of the tube-releasing ports 41. A square-conical drop block 43 is attracted below the annular magnet 42. The square-conical drop block 43 is connected to the water intake hose 35. The square-conical drop block 43 has a square-conical water-drawing chamber 431 inside and is connected to the water intake hose 35. Several water-drawing holes 432 are opened on the side surface of the square-conical water-drawing chamber 431 and are evenly distributed on the side surface of the square-conical drop block 43.

[0063] In this embodiment of the invention, by connecting the water intake hose 35 with the square cone-shaped drop block 43, and through the square cone-shaped water intake chamber 431 and the water intake hole 432, the suction force can be dispersed by the water intake hole 432, while avoiding debris in the water from clogging the water intake hole 432, thus ensuring the smoothness of sampling.

[0064] In this embodiment of the invention, the square pyramidal drop block 43 corresponding to the angle sensor 171 is made of metal and its weight is greater than that of the water intake hose 35. The other square pyramidal drop blocks 43 are made of non-metallic material and have a metal panel on their upper surface to facilitate the adsorption and fixation of the ring magnet 42. Their weight is less than that of the water intake hose 35, and the density of the material used is greater than that of water. This can prevent the corresponding water intake hose 35 from extending too far out of the sampling water tank 1, thus ensuring that the water intake hose 35 remains straight.

[0065] In this embodiment of the invention, the metal pyramidal drop block 43 has a weight greater than the sum of the rotational resistance of all the conveying wheels 17. It drags the corresponding water intake hose 35, keeping the water intake hose 35 straight. The adjacent pyramidal drop blocks 43 descend synchronously with the current water intake hose 35 using the weight of the pyramidal drop block 43. The rotational resistance of the conveying wheels 17 and the sufficient friction between the upper end of the water intake hose 35 and the conveying wheels 17 keep the corresponding water intake hose 35 vertical. Based on this principle, multiple pyramidal drop blocks 43 are arranged in layers at a fixed distance, thereby performing layered water sampling of the water source.

[0066] In this embodiment of the invention, the magnetic force of the ring magnet 42 can be used to make its magnetic force disappear by sequentially controlling the de-energization of the ring magnet 42, thereby causing the adsorption force on the square cone-shaped falling block 43 to disappear sequentially, so that it can fall sequentially. By controlling its falling interval, the device can perform fixed-distance stratified water sampling.

[0067] The upper surface of the cone-shaped drop block 43 has a snap-fit ​​groove 433, with one end and the upper end of the snap-fit ​​groove 433 being open. One end of the cone-shaped drop block 43 is provided with a snap-fit ​​seat 434, which has a hose hole 435. An adjustment groove 436 is provided inside the snap-fit ​​seat 434, and a fixing baffle 4361 is provided at one end of the adjustment groove 436. The fixing baffle 4361 is located on one side of the hose hole 435. A fixing extrusion protrusion 4362 is installed at the center of the side surface of the fixing baffle 4361 and inserted into the hose hole 435. Hydraulic telescopic cylinders are installed at both ends of the side surface of the fixing baffle 4361. 4363, the telescopic end of the hydraulic telescopic cylinder 4363 is provided with a movable baffle 4364, which is located on the other side of the hose hole 435. A long extrusion protrusion 4365 is installed on the side surface of the movable baffle 4364 and inserted into the hose hole 435. A compression spring 4366 is provided between the movable baffle 4364 and the adjustment groove 436. The other end of the adjustment groove 436 is provided with a linkage hydraulic cylinder 4367, which is vertically set with its telescopic end facing upward and extending out of the upper surface of the square cone-shaped drop block 43. It is connected to the hydraulic telescopic cylinder 4363 through a linkage hose 4368.

[0068] In this embodiment of the invention, by utilizing the setting of the hose hole 435, the snap-fit ​​seat 434 can be fitted onto the adjacent water intake hose 35. The hose is squeezed and released by the long extrusion protrusion 4365 and the fixed extrusion protrusion 4362, which controls its locking and disconnection with the water intake hose 35, thereby facilitating the descent of the water intake hose 35. At the same time, the delivery length of the water intake hose 35 can be used to quickly lock it with the water intake hose 35, thereby ensuring the layer spacing.

[0069] In this embodiment of the invention, the elasticity of the compression spring 4366 is greater than the rotational resistance of the damping shaft of the conveying wheel 17 and less than the magnetic force of the annular magnet 42. Thus, after the magnetic force of the annular magnet 42 disappears, the compression spring 4366 can push the movable baffle 4364 to move. By utilizing the hydraulic linkage between the hydraulic telescopic cylinder 4363 and the hydraulic linkage cylinder 4367, the upper end of the hydraulic linkage cylinder 4367 extends out and drives the square cone-shaped drop block 43 to descend a certain distance. At the same time, it drives the long extrusion protrusion 4365 to extrude the adjacent water intake hose 35, so that the long extrusion protrusion 4365 and the fixed extrusion protrusion 4362 lock the water intake hose 35, and the locking seat 434 descends synchronously with the water intake hose 35.

[0070] In this embodiment of the invention, the magnetic force between the annular magnet 42 and the square cone-shaped drop block 43 can be used to retract the telescopic end of the hydraulic linkage cylinder 4367, and through hydraulic linkage, the hydraulic telescopic cylinder 4363 can be extended, thereby causing the long extrusion protrusion 4365 to retract, so that the snap-fit ​​seat 434 can separate from the adjacent water intake hose 35, thereby allowing the adjacent sampling water pipe 4365 to rise and fall freely.

[0071] In this invention, the telescopic end of the linkage hydraulic cylinder 4367 contracts by utilizing the adsorption force between the annular magnet 42 and the square cone-shaped drop block 43, causing the hydraulic telescopic cylinder 4363 to extend. This allows the long extrusion protrusion 4365 and the fixed extrusion protrusion 4362 to loosen the water intake hose 35, enabling the water intake hose 35 to pass smoothly through the hose hole 435. This facilitates the control of locking and unlocking the water intake hose 35 and the locking seat 434, ensuring the smooth retraction of the water intake hose 35.

[0072] In this invention, when the long extrusion protrusion 4365 and the fixed extrusion protrusion 4362 extrude the water collection hose 35, they extrude it into an ∞ shape, allowing air and samples to be transported through the gaps on both sides; this ensures that the water collection hose 35 can still be transported even after being extruded, preventing the water collection hose 35 from being blocked due to extrusion, and ensuring the normal operation of the sampling work.

[0073] In this invention, the snap-fit ​​seat 434 on the square pyramidal pendant 43 is movably embedded into the snap-fit ​​groove 433 of the adjacent square pyramidal pendant 43; this allows the square pyramidal pendant 43 to be neatly adsorbed below the annular magnet 42, ensuring the aesthetics of the device.

[0074] In this invention, the annular magnet 42 is de-energized sequentially according to the extension length of the water intake hose 35, causing the square cone-shaped drop block 43 to descend at a fixed distance, thereby performing stratified water intake. The descent length of the water intake hose 35 can be measured by the angle sensor 171, and then the de-energization of the annular magnet 42 is used to lock the square cone-shaped drop block 43 with the adjacent water intake hose 35 and descend synchronously with it, which can ensure that multiple water intake hoses 35 can perform stratified sampling at a fixed distance.

[0075] During the implementation of this technical solution, those skilled in the art need to connect all electrical components in this case to the external power supply mechanism, and should select a suitable controller according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and complete the electrical connection by referring to the working sequence of each electrical component. The detailed connection method is a well-known technology in the field. The following mainly introduces the working principle and process, and will not explain the electrical control.

[0076] When using this invention, the following steps are adopted:

[0077] S1: After moving the sampling box 1 to the sampling location, connect it to an external power source;

[0078] S2: Based on the actual sampling situation, after determining each sampling depth, the reduction motor 16 is controlled to work simultaneously. The reduction motor 16 drives the adjusting screw 311 to rotate through gear transmission, and through the transmission of the pulley 312 and the synchronous belt 313, as well as the threaded connection between the adjusting screw 311 and the adjusting crossbar 42, the adjusting crossbar 32 slowly rises, and drives the adjusting shaft 321 to rise slowly, so that the spreading force on the water taking hose 35 disappears, but the water taking hose 35 still remains stationary by its own weight. At the same time, the first ring magnet 42 is de-energized, and the reduction motor 16 is controlled to work. The reduction motor 16 works, so that the metal square cone-shaped drop block 43 descends by its own weight, and drives the corresponding water taking hose 35 to extend out of the hose cavity 12. The water taking hose 35 moves gradually within the hose cavity 12 and extends out of the sampling box 1 through the outlet 41, and descends with the square cone-shaped drop block 43.

[0079] S3: The descent of the water intake hose 35 drives the conveyor wheel 17 to rotate, and the rotation angle is detected by the angle sensor 171. Based on its outer diameter, the descent length of the water intake hose 35 is measured.

[0080] S4: When the water intake hose 35 descends to the predetermined height, the second annular magnet 42 is de-energized. At this time, the square cone-shaped drop block 43 corresponding to the second annular magnet 42 uses the elasticity of the compression spring 4366 to make the long extrusion protrusion 4365 extrude the adjacent water intake hose 35. Through the cooperation with the fixed extrusion protrusion 4362, the water intake hose 35 is locked with the square cone-shaped drop block 43, so that the square cone-shaped drop block 43 descends synchronously with the water intake hose 35.

[0081] S5: Using the metal cone-shaped drop block 43 and its weight, the drop force is greater than the rotational resistance of the damping shaft of the conveyor wheel 17, and the cone-shaped drop block 43 drags the corresponding water intake hose 35 to extend and descend synchronously. At the same time, the friction between the water intake hose 35 and the corresponding conveyor wheel 17 is used to make its upper end descend synchronously with the rotation of the conveyor wheel 17, ensuring that the water intake hose 35 is straight.

[0082] S6: When the water intake hose 35 descends to the predetermined height again, the third ring magnet 42 is de-energized, so that its corresponding square cone-shaped drop block 43 locks with its adjacent water intake hose 35, and the total weight of the three square cone-shaped drop blocks 43 and the extended water intake hose 35 is greater than the sum of the rotational resistance of the damping shaft of the two conveying wheels 17, so that the third water intake hose 35 descends synchronously with the first two water intake hoses 35.

[0083] S7: Gradually lower the water intake hose 35 to a predetermined height, and sequentially control the subsequent annular magnets 42 to be de-energized, so that the subsequent square cone-shaped drop blocks 43 descend and drive the corresponding water intake hoses 35 to descend synchronously, while keeping them straight;

[0084] S8: When the number of descents of the square cone-shaped drop blocks 43 is the same as the number of layers, the first water intake hose 35 descends to the lowest layer position based on its descent length. At this time, the reduction motor 16 is stopped, and the first water intake hose 35 is tightened and fixed, so that the first square cone-shaped drop block 43 stops at the lowest layer sampling position, while the remaining square cone-shaped drop blocks 43 stop at the corresponding layer for sampling.

[0085] S9: At this time, control the small vacuum pump 15 to start working, so that it can evacuate the sample cylinder 2 through the evacuation pipe 151, the evacuation horizontal pipe 152 and the three-way pipe 21, so that a negative pressure is formed in the sample cylinder 2, and then the suction force generated by the negative pressure is used to pump water through the water pumping pipe 25.

[0086] S10: As negative pressure is formed inside the sample cylinder 2, the square cone-shaped water extraction chamber 431 inside the square cone-shaped drop block 43 starts to extract water to the outside through the water extraction hole 432, and draws the sample into the water extraction hose 35. Through the delivery of the water extraction hose 35, the sample is injected into the sample cylinder 2 through the water extraction pipe 25.

[0087] S11: As the water sample in the sample tube 2 gradually increases, the annular float 23 floats above the water sample. As the water sample level rises, it drives the sealing plate 24 to gradually rise until it blocks and seals the three-way pipe 21. At this time, the small vacuum pump 15 is controlled to stop working, and the sample stratification sampling is completed.

[0088] S12: The staff takes out the sampling bottle and places it on the placement platform 14, aligning it with the discharge pipe 22. Then, the staff controls the opening of the ventilation solenoid valve 211 and the discharge solenoid valve 221. As the ventilation solenoid valve 211 connects with the outside, the sample cylinder 2 is connected to the outside, and the sample is discharged into the sampling bottle through the discharge pipe 22. At the same time, the sample water remaining in the water suction pipe 25 and the water suction hose 35 is gradually emptied through its own high liquid level flow and becomes the same as the water source liquid level.

[0089] S13: At this time, the geared motor 16 can be controlled to work in reverse, so that it drives the adjusting bar 32 to move downward and the adjusting shaft 321 to push the water intake hose 35 downward, thereby pushing the first water intake hose 35 to wind up and gradually rise. During its rise, as the rotating sleeve 34 contacts the remaining water intake hoses 35 in sequence, the adjusting shaft 321 pushes the remaining water intake hoses 35 to rise in sequence.

[0090] S14: After the water intake hose 35 rises to a certain predetermined height, the adjusting shaft 321 pushes the second water intake hose 35 to start rising. The second descending square cone-shaped drop block 43 rises with the first water intake hose 35, causing the second water intake hose 35 to fall to a certain height below the square cone-shaped drop block 43. After continuing to rise to a predetermined height, the second water intake hose 35 falls, causing the third square cone-shaped drop block 43 to move above the second square cone-shaped drop block 43, and causing the third water intake hose 35 to also fall. The subsequent water intake hoses 35 also rise with the first water intake hose 35 and gradually fall. At the same time, the subsequent square cone-shaped drop blocks 43 are successively located above their adjacent square cone-shaped drop blocks 43.

[0091] S15: When it moves to the appropriate position below the annular magnet 42, the control reduction motor 16 stops working. Then, the staff manually presses the telescopic end of the hydraulic linkage cylinder 4367 one by one, so that it drives the hydraulic telescopic cylinder 4363 to extend through the transmission of the linkage hose 4368 and push the movable baffle 4364 to move. This causes the long extrusion protrusion 4365 to move and release the water intake hose 35. At the same time, the compression spring 4366 is compressed. At this time, the snap-fit ​​seat 434 on the square cone-shaped drop block 43 moves into the snap-fit ​​groove 433 on the adjacent square cone-shaped drop block 43. Then, the control reduction motor 16 continues to work and the control annular magnet 42 is energized, so that the water intake hose 35 is completely retracted into the sampling box 1 and the square cone-shaped drop blocks 43 are respectively attracted to the corresponding annular magnet 42. At this time, the entire stratified sampling work is completed.

[0092] In practical applications of this device, step S15 can be performed by moving the sampling box 1 to a safe position before proceeding with the operation, in order to avoid danger to the staff during the operation and ensure the safety of the device.

[0093] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A water quality detection layered water taking device, characterized in that, The utility model relates to a kind of sampling device, including: Sampling box, drive cavity is arranged on its inside upper side, hose cavity is arranged on its inside lower side, pipe cavity is arranged on its rear end, and placing table is arranged on its front lower side; Small vacuum pump, installed in drive cavity, suction pipe is installed at its air inlet, and suction pipe one end installs suction horizontal pipe; Speed reducer, installed in drive cavity, and located at one side of small vacuum pump, umbrella gear one is installed at its rotating end; Sample cylinder, arranged in the front side of sampling box, and located above placing table, and its upper end is conical, tee pipe is installed at its upper end, air vent is arranged at the upper end of tee pipe, and air vent electromagnetic valve is installed, another end of tee pipe is inserted into drive cavity, and one-way air valve is installed, and it is connected with suction horizontal pipe, discharge pipe is installed at its lower end, discharge electromagnetic valve is installed on discharge pipe, annular floating plate is arranged in its inside, sealing disc is arranged above annular floating plate, and it is connected by support rod, suction pipe is installed on its side surface, and suction pipe is inserted into drive cavity; Adjusting hose device, arranged in hose cavity, including: Adjusting cavity, located at both sides of hose cavity inside, adjusting screw is arranged at the inside center of adjusting cavity, and it is connected by bearing, and adjusting screw upper end is inserted into drive cavity, belt pulley is installed on the upper end of adjusting screw, synchronous belt is sleeved between the belt pulleys on the upper end of two adjusting screws, umbrella gear two is installed on the upper end of one adjusting screw, and it is engaged with umbrella gear one, and strip adjusting hole is arranged on the side surface of umbrella gear two; Adjusting cross rod, arranged in adjusting cavity, and screw-threaded on adjusting screw, adjusting shaft is installed between adjusting cross rods in two adjusting cavities, and it is evenly distributed, and adjusting shaft is located in strip adjusting hole; Fixed shaft, evenly installed in the upper side of hose cavity inside, and located between two adjusting cavities, and it is parallel with adjusting shaft, and staggered distribution; Rotary sleeve, movably arranged on fixed shaft and adjusting shaft, and limit setting, and limit baffle is arranged at both ends of rotary sleeve; Water taking hose, located in hose cavity, and sleeved on rotary sleeve, and it is serpentine distribution, and one end is inserted into drive cavity, and connected with suction pipe; Conveying wheel, evenly arranged in pipe cavity, and corresponding with the position of rotary sleeve, and water taking hose is sleeved on pipe cavity, and the rotating shaft of outermost conveying wheel is stretched out from pipe cavity, and angle sensor is installed; Magnetic type pipe releasing mechanism, arranged at the lower end of pipe cavity.

2. The water quality detection layered water intake device according to claim 1, characterized in that, The magnetic type pipe releasing mechanism includes several pipe releasing ports opened at the lower end of pipe cavity, and evenly distributed, and water taking hose is stretched out from pipe cavity outside through pipe releasing port, annular magnet is installed at the lower end of pipe cavity, and corresponding with the position of pipe releasing port, square cone type falling block is adsorbed below annular magnet, and connected with water taking hose.

3. The water quality detection layered water intake device according to claim 2, characterized in that, The square cone type falling block is arranged with square cone type water pumping cavity in its inside, and communicated with water taking hose, and several water pumping holes are opened on the side surface of square cone type water pumping cavity, and evenly distributed on the side surface of square cone type falling block.

4. The water quality detection layered water intake device according to claim 2, characterized in that, The square conical down block upper surface is provided with a clamping groove, one end of the clamping groove and the upper end are open, the square conical down block is provided with a clamping seat at one end, the clamping seat is provided with a hose hole, the clamping seat is provided with an adjusting groove inside, the adjusting groove is provided with a fixed baffle at one end, the fixed baffle is located on one side of the hose hole, a fixed extrusion protrusion is installed on the center of the side surface of the fixed baffle and is inserted into the hose hole, hydraulic telescopic cylinders are installed at both ends of the side surface of the fixed baffle, the telescopic end of the hydraulic telescopic cylinder is provided with a movable baffle and is located on the other side of the hose hole, a long extrusion protrusion is installed on the side surface of the movable baffle and is inserted into the hose hole, and a compression spring is arranged between the movable baffle and the adjusting groove.

5. The water quality detection layered water intake device according to claim 4, characterized in that, The other end of the adjusting groove is provided with a linkage hydraulic cylinder on both sides, which is vertically arranged, the telescopic end faces upward, and the telescopic end extends out of the upper surface of the square conical down block, and the linkage hydraulic cylinder is connected with the hydraulic telescopic cylinder through a linkage hose.

6. The water quality detection layered water intake device according to claim 5, characterized in that, The telescopic end of the linkage hydraulic cylinder is retracted by the adsorption force between the annular magnet and the square conical down block, so that the hydraulic telescopic cylinder extends out, the long extrusion protrusion and the fixed extrusion protrusion loosen the water taking hose, and the water taking hose can smoothly pass through the hose hole.

7. The water quality detection layered water intake device according to claim 8, characterized in that, When the long extrusion protrusion and the fixed extrusion protrusion extrude the water taking hose, the water taking hose is extruded into the shape of ∞, so that air and samples are transported through the gap on both sides.

8. The water quality detection layered water intake device according to claim 4, characterized in that, The clamping seat on the square conical down block is movably embedded in the clamping groove of the adjacent square conical down block.

9. The water quality detection layered water intake device according to claim 2, characterized in that, The annular magnet is sequentially powered off according to the extension length of the water taking hose, so that the square conical down block is lowered at a certain distance, thereby performing stratified water taking.

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