Portable water sample detection device and detection method

Abstract

The invention relates to the field of water quality detection, in particular to a portable water sample detection device and a detection method. The invention aims to solve the technical problem that the filtering equipment is easy to block in the process of predicting the water quality change by using the existing sludge pollutant content detection method. According to the technical scheme, the device comprises a waterproof shell and further comprises a first motor, the first motor is fixedly installed in the waterproof shell, an output shaft of the first motor is fixedly connected with a winding shaft, a tensile wire is wound around the winding shaft, one end of the tensile wire is fixedly connected with an upper shell, and the bottom of the upper shell is fixedly connected with a lower shell. By arranging the first sealing column, in the upward moving process of the first sealing column, sludge is in mixed contact with water flow, the water content of the sludge around the drilling barrel is increased, water in the sludge can seep from the sludge at the bottom of the drilling barrel to form sludge percolate, and the situation that filter paper is blocked by the sludge during filtering in the prior art is avoided; therefore, the collection efficiency of the sludge percolate is improved.

Description

Technical Field

[0001] The present invention relates to the field of water quality detection, and in particular to a portable water sample detection device and a detection method. Background Art

[0002] The water sample detection device is a device used to analyze water quality indicators. It can quickly and accurately detect water density, turbidity, etc., helping users to grasp the water quality status in a timely manner and ensure water environment safety and water treatment effects.

[0003] Silt is an important component of the aquatic ecosystem. It can reflect the historical pollution status of the water body and affect the future changes in the water quality of the water body. Silt seepage is a liquid with dissolved silt pollutants, which can directly reflect the potential impact of silt pollutants on water quality. The existing method of obtaining silt seepage is to salvage the silt ashore through a sampling device, and then extract it by standing, low-speed stirring or centrifugation, and finally filter it through a filter. However, in the process of silt collection and detection, the concentration of substances in the silt is easily diluted by the water flow, resulting in inaccurate detection of the substance content in the silt and loss of silt samples. In addition, in the process of silt filtering, large amounts of silt filtering can easily cause filter paper clogging, and the filter membrane needs to be replaced frequently, resulting in low efficiency in silt seepage extraction.

[0004] Therefore, those skilled in the art have provided a portable water sample detection device that can filter silt without clogging while avoiding water flow scouring the silt. Summary of the invention

[0005] In order to overcome the shortcoming that filtering equipment is prone to clogging in the process of predicting water quality changes using the sludge pollutant content detection method, the technical problem of the present invention is to provide a portable water sample detection device and detection method that can prevent sludge clogging.

[0006] The technical implementation scheme of the present invention is: a portable water sample detection device, including a waterproof shell, and also including a first motor, the first motor is fixedly installed in the waterproof shell, the output shaft of the first motor is fixedly connected to a winding shaft, a tensile wire is wound on the winding shaft, one end of the tensile wire is fixedly connected to an upper shell, the outer wall of the upper shell is sealed and rotatably connected to a fastening ring, the fastening ring is sealed and threadedly clamped with a lower shell, the lower shell is in sealed contact with the upper shell, and a second motor is installed in the lower shell and rotatably connected to a transmission gear, the output shaft of the second motor is fixedly connected to a driving gear meshing with the transmission gear, and the transmission gear is internally connected to the transmission gear. A drill barrel is fixedly connected in a sleeve manner, and the drill barrel is sealingly rotatably connected to the lower shell body, and the top of the drill barrel is sealingly rotatably connected to the upper shell body, a sliding barrel is fixedly connected inside the drill barrel, and the top of the sliding barrel is sealingly rotatably connected to the upper shell body, a first liquid hole is circumferentially distributed inside the sliding barrel, a first sealing column is sealingly slidably connected inside the sliding barrel, a watertight chamber is fixedly connected inside the sliding barrel, the space at the top of the watertight chamber is connected to the space at the bottom through the first liquid hole of the sliding barrel, a third motor is installed in the watertight chamber, the output shaft of the third motor passes through the watertight chamber and is fixedly connected to a screw rod, the screw rod is threadedly connected to the first sealing column, and is rotatably connected to the watertight chamber.

[0007] Preferably, fan blades are also included, and the drill tube is circumferentially distributed and rotatably connected with the fan blades, the fan blades are in contact with the outer wall of the first sealing column, and magnetic blocks are embedded and fixed on both sides of the fan blades.

[0008] Preferably, a stirring blade is also included, and vertical grooves are circumferentially distributed at the bottom of the first sealing column. The stirring blade is rotatably connected in the vertical groove, and a first spring is connected between the stirring blade and the first sealing column.

[0009] Preferably, it also includes a support tube, the bottom of the upper shell is fixedly connected to the support tube, the top of the support tube is provided with a distance sensor, the bottom of the support tube is rotatably connected to a rotating scraper, the bottom of the rotating scraper is rotatably connected to the water-blocking bin, the rotating scraper is internally threadedly connected to a threaded tube, the external sleeve of the threaded tube is sealed with a sealing sleeve, the sealing sleeve is sealingly connected to the support tube, the top of the threaded tube is fixedly connected to a first buoyancy plate, the distance sensor is used to detect the moving speed of the first buoyancy plate, and the first buoyancy plate is slidably connected to the support tube.

[0010] Preferably, it also includes a sliding frame, a filter and a first pressure sensor. The sliding frame is connected to the support tube in a mirror-distributed sealed sliding manner, the filter is fixedly connected to the sliding frame, the first pressure sensor is fixedly installed on the bottom of the support tube, and a second spring is connected between the top of the first pressure sensor and the sliding frame.

[0011] Preferably, it also includes a first one-way valve, a four-way liquid hole is opened inside the upper shell body, a first one-way valve is installed on the top of the upper shell body, the first one-way valve is connected to the four-way liquid hole, a storage cylinder is slidably connected in the lower shell body, the storage cylinder is connected to the four-way liquid hole, a sealing cover is fixedly connected to the top of the storage cylinder, a serrated slider and a sealing rod are slidably connected in the sealing cover, a third spring is connected between the serrated slider and the sealing cover, the inclination of the top of the outer wall of the sealing rod is greater than that of its bottom, the sealing rod cooperates with the serrated slider, ventilation grooves and water grooves are circumferentially distributed on the sealing rod, and a second buoyancy plate is fixedly connected to the bottom of the sealing rod.

[0012] Preferably, it also includes a guide cylinder, which is slidably connected in the lower shell body, and the guide cylinder is connected to the four-way liquid hole of the upper shell body. A heating cylinder is fixedly connected in the guide cylinder, and a water wheel is rotatably connected in the heating cylinder, and a one-way damping gear is fixedly connected to one side of the water wheel, and the one-way damping gear is in contact with the heating cylinder. A second liquid hole is provided in the heating cylinder, and the water wheel is in sealing contact with the second liquid hole. A rack is slidably connected in the second liquid hole, and the rack is meshed with the one-way damping gear. A second sealing column is arranged on the top of the rack, and a sliding bar is fixedly connected to one side of the rack, and the sliding bar is sealingly slidably connected to the second liquid hole. A vent hole is provided in the heating cylinder, and a second one-way valve is fixedly installed in the vent hole. A second pressure sensor and a heating wire are installed in the heating cylinder.

[0013] Preferably, it also includes a driven gear and a threaded rack, a driven gear meshing with the transmission gear is rotatably connected in the lower shell body, a threaded rod is slidably connected in the driven gear, the top of the threaded rod is sealed and slidably connected to the upper shell body, an insertion rod is fixedly connected to the bottom of the threaded rod, one end of the insertion rod is in the shape of a nail cap, the insertion rod is sealed and slidably connected to the lower shell body, a fourth spring is connected between the insertion rod and the lower shell body, an inner ring groove and an outer ring groove are provided at the bottom of the driven gear, an arc groove connecting the inner ring groove and the outer ring groove is also provided at the bottom of the driven gear, a limit plate is rotatably connected to the connection between the arc groove and the inner ring groove, a torsion spring is connected between the limit plate and the driven gear, a threaded rack is slidably connected in the lower shell body, a threaded rack is provided on one side of the threaded rack and cooperates with the threaded rod, a fifth spring is connected between the threaded rack and the lower shell body, a columnar protrusion is provided on the top of the threaded rack, and the columnar protrusion at the top of the threaded rack is slidably connected to the inner ring groove.

[0014] Preferably, it also includes a propeller, a lifting ring, a third buoyancy plate and an arresting ring. Filter holes are circumferentially distributed on the bottom of the waterproof shell, and a propeller is sealed and fixedly installed circumferentially inside the waterproof shell, and a third buoyancy plate is fixedly installed circumferentially. A lifting ring is fixedly connected to the top of the waterproof shell, and an arresting ring is fixedly connected to the bottom of the waterproof shell, and a semicircular groove is provided at the bottom of the arresting ring.

[0015] Preferably, a detection method of a portable water sample detection device to prevent silt clogging comprises the following steps: S1: The staff puts the device into the water, starts the propeller, drives the waterproof housing to move to the top of the sludge seepage collection area, starts the first motor, inserts the bottom of the stirring blade into the sludge, and completes the positioning of the device on the sludge seepage collection position; S2: The staff starts the second motor, and the output shaft of the second motor rotates clockwise to make the threaded rod lose its limit position, and the fourth spring is released to make the rod inserted into the mud, thus completing the fixing of the lower shell before the drill pipe drills into the mud; S3: The staff readjusts the second motor, and the output shaft of the second motor rotates counterclockwise to drive the lower housing to move downward synchronously, and drives the drill tube and the stirring blade to rotate synchronously, so as to soften the sludge structure and increase the water content, until the fourth spring is fully compressed, and the water sample collection position is positioned in the sludge; S4: The staff starts the third motor, and the output shaft of the third motor rotates to move the first sealing column upward. The air pressure in the first cavity composed of the first sealing column, the drill pipe and the silt is reduced, which accelerates the seepage of the silt exudate. At the same time, the fan blades form a cone shape to prevent large pieces of silt from entering the first cavity. S5: The sludge seepage liquid drives the first buoyancy plate upward by buoyancy, and the rising speed of the first buoyancy plate is captured by the distance sensor to obtain the turbidity of the sludge seepage liquid. The precipitable matter in the sludge seepage liquid adheres to the filter screen, and the first pressure sensor is subjected to more pressure to obtain the content of the precipitable matter. After the sludge seepage liquid enters the four-way liquid hole of the upper shell, the buoyancy drives the sealing rod to contact the sealing cover to seal the ventilation groove and the water groove, so as to realize the storage of the sludge seepage liquid in the storage cylinder. The sludge seepage liquid enters the heating cylinder, and the heating wire is started to obtain the solid soluble matter. The influence of the sludge on the water quality is judged by the second pressure sensor; S6: Start the third motor to reset the stirring blades, start the first motor to reset the upper shell and the lower shell, start the propeller to move the waterproof shell to the recovery location, grab the lifting ring recovery device manually or mechanically, and then rotate the fastening ring to separate it from the upper shell and the lower shell. The staff takes out the storage cylinder and presses the sealing rod to reset it. The storage cylinder is tilted to allow the sludge exudate to flow out to complete the extraction of the sludge exudate. Then the staff takes out the guide cylinder and turns it over. The second sealing column is reset by gravity. The guide cylinder is turned over and clean water is poured in. The clean water enters the interior of the heating cylinder through the second liquid hole of the heating cylinder and dissolves the solid soluble matter to form a solution. The guide cylinder is turned over to allow the solution to flow out from the second liquid hole and the air hole of the heating cylinder to complete the cleaning of the solid soluble matter.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention sets a first sealing column. During the upward movement of the first sealing column, the first sealing column, the drill tube and the sludge can form a first cavity. As the drill tube rotates, the sludge mixes with the water flow, and the water content of the sludge around the drill tube increases. The water in the sludge will seep out from the sludge at the bottom of the drill tube to form sludge exudate, and continuously enter the first cavity under the action of hydraulic pressure, and move upward through the first liquid hole of the sliding cylinder, and start to detect and collect the sludge exudate in the second cavity composed of the upper shell, the sliding cylinder and the water-isolating chamber, thereby avoiding the situation that the filter paper is blocked by sludge during filtration in the prior art, thereby improving the collection efficiency of the sludge exudate; 2. The present invention arranges fan blades, and the magnetic blocks on both sides of the fan blades attract each other, so that the fan blades distributed in the circumferential direction form a cone-shaped cylinder, thereby reducing the cross-sectional area of ​​large pieces of sludge when moving upward, increasing the resistance of large pieces of sludge when rising, preventing large particles in the sludge from contaminating the sludge exudate, and thus improving the quality of sludge exudate detection; 3. The present invention arranges a sealing rod. When the liquid level of the sludge seepage liquid in the storage cylinder touches the second buoyancy plate, the second buoyancy plate is subjected to the buoyancy from the sludge seepage liquid, thereby driving the sealing rod to move upward and the ventilation groove and the water groove are blocked by the inclined surface inside the sealing cover. The inclined surface of the serrated slider will hinder the sealing rod from moving downward. Therefore, the sealing rod is difficult to be pressed downward by the sludge seepage liquid, thereby ensuring the sealing of the top of the storage cylinder, effectively protecting the sludge seepage liquid from contamination, and realizing the storage of the sludge seepage liquid in the storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cutaway schematic diagram of the upper housing of the present invention; Figure 3 A half-section schematic diagram of the lower housing of the present invention; Figure 4 A half-section schematic diagram of a drill tube of the present invention; Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle; Figure 6 A half-section schematic diagram of a sliding cylinder of the present invention; Figure 7 It is a structural schematic diagram of the sealing rod of the present invention; Figure 8 It is a partial cutaway schematic diagram of the heating cartridge of the present invention; Fig. 9 A half-section schematic diagram of the heating cartridge of the present invention; Fig.10 It is a partial cutaway schematic diagram of the lower housing of the present invention; Fig.11 It is a partial cutaway schematic diagram of the driven gear of the present invention; Fig.12 It is a structural schematic diagram of the driven gear of the present invention; Fig.13 It is a partial cutaway schematic diagram of the above-water housing of the present invention.

[0018] The markings of the components in the attached drawings are as follows: 1: waterproof housing, 2: first motor, 3: winding shaft, 4: tensile wire, 5: upper housing, 6: lower housing, 7: second motor, 8: driving gear, 9: transmission gear, 10: drill tube, 101: fan blade, 11: sliding cylinder, 12: first sealing column, 13: stirring blade, 14: water-proof chamber, 15: third motor, 16: screw rod, 17: support cylinder, 171: distance sensor, 18: rotating scraper, 19: threaded cylinder, 191: sealing sleeve, 20: first buoyancy plate, 21: sliding frame, 22: filter screen, 23: first pressure sensor, 24: first one-way valve, 25: storage cylinder, 26: sealing cover, 27: serrated slider, 28: sealing rod, 281: ventilation groove, 282: water groove, 29: second buoyancy plate, 30: guide cylinder, 31: heating cylinder, 32: second sealing column, 33: water wheel, 34: one-way damping gear, 35: rack, 36: slide bar, 37: second one-way valve, 38: second pressure sensor and 39: heating wire, 40: driven gear, 41: threaded rod, 42: plug rod, 43: threaded rack, 44: limit plate, 45: thruster, 46: lifting ring, 47: third buoyancy plate, 48: blocking ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] A portable water sample detection device, such as Figure 1-Figure 13As shown, it includes a waterproof shell 1 and a first motor 2. The first motor 2 is fixedly installed in the waterproof shell 1. A winding shaft 3 is fixedly connected to the output shaft of the first motor 2. A tensile wire 4 is wound on the winding shaft 3. One end of the tensile wire 4 is fixedly connected to an upper shell 5. A fastening ring 501 is sealed and rotatably connected to the outer wall of the upper shell 5. A lower shell 6 is sealed and threadedly clamped in the fastening ring 501. The lower shell 6 is in sealing contact with the upper shell 5, and a second motor 7 is fixedly installed in the lower shell 6 and is rotatably connected to a transmission gear 9. A driving gear 8 meshing with the transmission gear 9 is fixedly connected to the output shaft of the second motor 7. A drill barrel 10 is sleeved and fixedly connected in the transmission gear 9. The drill barrel 10 is sealed and rotatably connected to the lower shell 6, and the top of the drill barrel 10 is sealed and rotatably connected to the upper shell 5. The rotation of the drill barrel 10 in the silt can make the silt structure at the outer wall of the drill barrel 10 looser and increase the water content of the silt, thereby accelerating the water flow of the silt at the outer wall of the drill barrel 10. A sliding cylinder 11 is fixedly connected inside the cylinder 10, and the top of the sliding cylinder 11 is sealed and rotatably connected to the upper shell body 5. A first sealing column 12 is sealed and slidably connected inside the sliding cylinder 11. The first sealing column 12 is in sealed sliding contact with the drill barrel 10. When the drill barrel 10 is inserted into the mud and the first sealing column 12 is upwardly separated from the bottom of the drill barrel 10, the first sealing column 12, the drill barrel 10 and the mud can form a first cavity. A watertight chamber 14 is fixedly connected inside the sliding cylinder 11. The upper shell body 5, the sliding cylinder 11 and the watertight chamber 14 can form a second cavity. A first liquid hole is circumferentially distributed inside the sliding cylinder 11. When the first sealing column 12 moves upward and the bottom cone shape does not contact the inner wall of the sliding cylinder 11, the first cavity is connected to the second cavity through the first liquid hole. A third motor 15 is fixedly installed inside the watertight chamber 14. The output shaft of the third motor 15 passes through the bottom of the watertight chamber 14 and is fixedly connected with a screw rod 16. The screw rod 16 is threadedly connected to the first sealing column 12 and is rotatably connected to the watertight chamber 14.

[0021] It also includes fan blades 101, which are circumferentially distributed and rotatably connected to the drill tube 10. The fan blades 101 are in contact with the outer wall of the first sealing column 12. Magnetic blocks are embedded and fixed on both sides of the fan blades 101. Adjacent magnetic blocks attract each other. When the first sealing column 12 is separated from the fan blades 101, the adjacent magnetic blocks can drive the fan blades 101 to form a cone shape.

[0022] It also includes a stirring blade 13. Vertical grooves are circumferentially distributed at the bottom of the first sealing column 12. The bottom of the vertical groove is rotatably connected to the stirring blade 13. When the stirring blade 13 rotates, it is used to stir the silt at the bottom of the drill barrel 10 to make the silt structure looser, accelerate the seepage of silt exudate, and improve the seepage efficiency of silt exudate. A first spring is connected between the top of the stirring blade 13 and the first sealing column 12.

[0023] It also includes a support tube 17, which is fixedly connected to the bottom of the upper shell 5, and a distance sensor 171 is arranged on the top of the support tube 17. The distance sensor 171 is wirelessly connected to an external signal receiver, and a rotating scraper 18 is rotatably connected to the bottom of the support tube 17. The bottom of the rotating scraper 18 is in rotational contact with the water-blocking bin 14, and the rotating scraper 18 is internally threadedly connected to a threaded tube 19, and a sealing sleeve 191 is installed on the outside of the threaded tube 19 in a sleeve-type sealing manner. The sealing sleeve 191 is composed of two sleeve parts in a sealed and sliding connection. The sleeve part inside the sealing sleeve 191 is sealed and fixedly connected to the threaded tube 19, and the sleeve part outside the sealing sleeve 191 is sealed and fixedly connected to the support tube 17. A first buoyancy plate 20 is fixedly connected to the top of the threaded tube 19, and the distance sensor 171 obtains the content of precipitable matter in the sludge exudate at the rotating scraper 18 through the moving speed of the first buoyancy plate 20, and then determines the turbidity of the sludge exudate. The first buoyancy plate 20 is slidably connected to the support tube 17.

[0024] It also includes a sliding frame 21, a filter screen 22 and a first pressure sensor 23. The sliding frame 21 is connected to the support tube 17 in a mirror-distributed sealed sliding manner. The filter screen 22 is fixedly connected to the sliding frame 21. The filter screen 22 is used to filter the precipitable matter of a specific particle size in the sludge exudate, and then determine the particle size of the precipitable matter in the sludge exudate. The first pressure sensor 23 is fixedly installed at the bottom of the support tube 17. The first pressure sensor 23 is wirelessly connected to an external signal receiver, and a second spring is connected between the top of the first pressure sensor 23 and the sliding frame 21.

[0025] It also includes a first one-way valve 24. A four-way liquid hole is opened inside the upper shell 5. The first one-way valve 24 is fixedly installed on the top of the upper shell 5. The first one-way valve 24 is connected to the four-way liquid hole. The first one-way valve 24 is used to exhaust the air in the device. A storage cylinder 25 is slidably connected in the lower shell 6. The storage cylinder 25 is connected to the four-way liquid hole, and the top of the storage cylinder 25 is higher than the lower shell 6, which is convenient for the staff to take out the storage cylinder 25. A sealing cover 26 is fixedly connected to the top of the storage cylinder 25. A serrated slider 27 and a sealing rod 28 are slidably connected in the sealing cover 26. A third spring is connected between the serrated slider 27 and the sealing cover 26. The top inclination of the outer wall of the sealing rod 28 is greater than its bottom. The sealing rod 28 cooperates with the serrated slider 27. When the sealing rod 28 is located at the top of the sealing cover 26, the serrated slider 27 is used to prevent the sealing rod 28 from moving downward, so as to prevent the sludge exudate in the four-way liquid hole from interfering with the sludge exudate in the storage tube 25, thereby improving the accuracy of subsequent sludge exudate detection. The sealing rod 28 is circumferentially provided with ventilation grooves 281 and water grooves 282. The top of the ventilation groove 281 is higher than the water groove 282, and the ventilation groove 281 has the same diameter as the water groove 282. When the sealing rod 28 contacts the inclined surface inside the sealing cover 26, the inclined surface inside the sealing cover 26 can block the ventilation groove 281 and the water groove 282, so that the sealing cover 26 and the sealing rod 28 seal the storage tube 25. The bottom of the sealing rod 28 is fixedly connected to a second buoyancy plate 29.

[0026] The guide tube 30 is also included. The guide tube 30 is slidably connected in the lower shell 6. The guide tube 30 is connected to the four-way liquid hole of the upper shell 5, and the top of the guide tube 30 is higher than the lower shell 6, which is convenient for the staff to take out the guide tube 30. The heating tube 31 is fixedly connected in the guide tube 30. The heating tube 31 is rotatably connected with a water wheel 33. A one-way damping gear 34 is fixedly connected to one side of the water wheel 33. The one-way damping gear 34 is in contact with the heating tube 31. A second liquid hole is provided in the heating tube 31. The water wheel 33 is in sealing contact with the second liquid hole. A rack 35 is slidably connected in the second liquid hole. The rack 35 is meshed with the one-way damping gear 34. A second sealing column 32 is arranged on the top of the rack 35. 34 is used to limit the downward movement of the second sealing column 32. A sliding bar 36 is fixedly connected to one side of the rack 35. The sliding bar 36 is sealed and slidably connected to the second liquid hole. A vent hole is opened in the heating cylinder 31. One end of the vent hole is higher than the second liquid hole of the heating cylinder 31, so that the air in the heating cylinder 31 can be discharged through the vent hole. A second one-way valve 37 is fixedly installed in the vent hole. A second pressure sensor 38 and a heating wire 39 are installed in the heating cylinder 31. The second pressure sensor 38 is wirelessly connected to an external signal receiver. The top of the second pressure sensor is cylindrical and is used to hold sludge exudate to prevent the sludge exudate from precipitating solid soluble substances on the inner wall of the heating cylinder 31, thereby reducing the accuracy of sludge exudate detection.

[0027] The driven gear 40 and the threaded frame 43 are also included. The driven gear 40 meshing with the transmission gear 9 is rotatably connected in the lower shell 6. A spline groove is provided in the driven gear 40. The driven gear 40 is slidably connected to the threaded rod 41 through the spline groove. The top of the threaded rod 41 is sealed and slidably connected to the upper shell 5. The bottom of the threaded rod 41 is fixedly connected to the plug rod 42. One end of the plug rod 42 is in the shape of a nail cap, so that the plug rod 42 is limited by the lower shell 6 when it moves downward to prevent the plug rod 42 from detaching from the lower shell 6. The plug rod 42 is sealed and slidably connected to the lower shell 6. A fourth Spring, an inner ring groove, an outer ring groove and an arc groove connecting the inner ring groove and the outer ring groove are provided at the bottom of the driven gear 40, the connection between the arc groove and the inner ring groove is rotatably connected to a limit plate 44, a torsion spring is connected between the limit plate 44 and the driven gear 40, a threaded frame 43 is slidably connected in the lower shell 6, one side of the threaded frame 43 is provided with a thread and cooperates with the threaded rod 41, the arc groove is used to adjust the cooperation between the threaded frame 43 and the threaded rod 41, a fifth spring is connected between the threaded frame 43 and the lower shell 6, a columnar protrusion is provided on the top of the threaded frame 43, and the columnar protrusion on the top of the threaded frame 43 is slidably connected to the inner ring groove.

[0028] It also includes a propeller 45, a lifting ring 46, a third buoyancy plate 47 and an arresting ring 48. Filter holes are circumferentially distributed on the bottom of the waterproof shell 1, and the propeller 45 is circumferentially distributed and sealed and fixedly installed inside the waterproof shell 1, and the third buoyancy plate 47 is circumferentially distributed and fixedly installed. The top of the waterproof shell 1 is fixedly connected to the lifting ring 46, and the bottom of the waterproof shell 1 is fixedly connected to the arresting ring 48. A semicircular groove is provided at the bottom of the arresting ring 48 to facilitate the flow of water at the bottom of the waterproof shell 1.

[0029] A detection method for a portable water sample detection device to prevent sludge clogging comprises the following steps: S1: The staff puts the device into the water, starts the propeller 45, and drives the waterproof housing 1 to move to the top of the sludge exudate collection area, and starts the first motor 2 to insert the bottom of the stirring blade 13 into the sludge, thereby completing the positioning of the device on the sludge exudate collection position; S2: The staff starts the second motor 7, and the output shaft of the second motor 7 rotates clockwise to make the threaded rod 41 lose its limit position, and the fourth spring is released to make the insertion rod 42 insert into the mud, thus completing the fixing of the lower housing 6 before the drill tube 10 drills into the mud; S3: The staff readjusts the second motor 7, and the output shaft of the second motor 7 rotates counterclockwise to drive the lower housing 6 to move downward synchronously, and drives the drill tube 10 and the stirring blade 13 to rotate synchronously, so as to soften the sludge structure and increase the water content, until the fourth spring is fully compressed, and the water sample collection position is positioned in the sludge; S4: The staff starts the third motor 15, and the output shaft of the third motor 15 rotates to move the first sealing column 12 upward, and the air pressure in the first cavity composed of the first sealing column 12, the drill pipe 10 and the sludge is reduced, which accelerates the seepage of the sludge exudate. At the same time, the fan blades 101 form a cone shape to prevent large pieces of sludge from entering the first cavity; S5: The sludge exudate is driven by the buoyancy to move the first buoyancy plate 20 upwards, and the rising speed of the first buoyancy plate 20 is captured by the distance sensor 171 to obtain the turbidity of the sludge exudate. The precipitable matter in the sludge exudate adheres to the filter screen 22, and the first pressure sensor 23 is subjected to more pressure to obtain the content of the precipitable matter. After the sludge exudate enters the four-way liquid hole of the upper shell 5, the buoyancy drives the sealing rod 28 to block the ventilation groove 281 and the water groove 282 to achieve the storage of the sludge exudate in the storage cylinder 25. The sludge exudate enters the heating cylinder 31, and the heating wire 39 is started to obtain the solid soluble matter. The influence of the sludge on the water quality is judged by the second pressure sensor 38; S6: Start the third motor 15 to reset the stirring blade 13, start the first motor 2 to reset the upper shell 5 and the lower shell 6, start the propeller 45 to move the waterproof shell 1 to the recovery location, manually or mechanically grab the lifting ring 46 recovery device, and then rotate the fastening ring 501 to separate it from the upper shell 5 and the lower shell 6. The staff takes out the storage cylinder 25 and presses the sealing rod 28 to reset it, tilts the storage cylinder 25 to allow the sludge exudate to flow out to complete the extraction of the sludge exudate, then, the staff takes out the guide cylinder 30 and turns it over, the second sealing column 32 is reset by gravity, turns the guide cylinder 30 over and pours clean water, the clean water enters the interior of the heating cylinder 31 through the second liquid hole of the heating cylinder 31, and dissolves the solid soluble matter to form a solution, turns the guide cylinder 30 over to allow the solution to flow out from the second liquid hole and the air hole of the heating cylinder 31 to complete the cleaning of the solid soluble matter.

[0030] Before the device detects silt seepage in water quality, the staff needs to put the device into the water first, so that the waterproof shell 1 floats on the water surface through the third buoyancy plate 47, and the water flows through the semicircular groove at the bottom of the blocking ring 48 to the bottom of the waterproof shell 1. Then the staff remotely starts the propeller 45 to make the propeller 45 push the water flow. The propeller 45 is driven by the reaction force of the water flow to move the waterproof shell 1. The water flow at the bottom of the waterproof shell 1 flows through the filter holes of the waterproof shell 1 to the output shaft of the propeller 45, so that the water flow at the output shaft of the propeller 45 maintains a unidirectional flow state, thereby promoting the movement of the waterproof shell 1. After the waterproof shell 1 moves to the top of the silt seepage collection area, the staff remotely shuts down the propeller 45. The first motor 2 is started remotely, so that the output shaft of the first motor 2 rotates and drives the winding shaft 3 to rotate, and the tensile wire 4 on the winding shaft 3 is released, so that the upper shell 5 moves downward by its own gravity, and drives the lower shell 6 to move synchronously. The lower shell 6 moves downward and drives the first sealing column 12 to move downward through the drill pipe 10. The movement of the first sealing column 12 drives the stirring blade 13 to move synchronously until the bottom of the stirring blade 13 contacts the sludge through gravity and inserts into the sludge. The upward pressure of the sludge and its own viscosity gradually slow down the speed of the stirring blade 13 inserting into the sludge, and finally the stirring blade 13 remains stationary. At this time, the staff remotely shuts down the first motor 2, so that the tensile wire 4 is no longer released, and the device completes the positioning of the sludge exudate collection position.

[0031] After completing the positioning of the device on the sludge exudate collection position, it is necessary to fix the lower shell 6 above the sludge so that the device can collect the sludge exudate. At this time, the staff remotely starts the second motor 7, and the output shaft of the second motor 7 rotates clockwise to drive the driving gear 8 to rotate. The driving gear 8 rotates through the transmission gear 9 to drive the driven gear 40 to rotate clockwise. At the same time, the transmission gear 9 drives the drill tube 10 to rotate counterclockwise during the rotation. At this time, the drill tube 10 has not drilled into the sludge, and the driven gear 40 rotates to make the inner ring groove at its bottom rotate clockwise. The columnar protrusion at the top of the threaded frame 43 slides along the inner ring groove to the arc groove of the driven gear 40. When the columnar protrusion at the top of the threaded frame 43 slides to the connecting point between the inner ring groove and the arc groove, the columnar protrusion at the top of the threaded frame 43 squeezes one side of the limit plate 44, but because the columnar protrusion at the top of the threaded frame 43 is close to the rotation axis of the limit plate 44, the columnar protrusion at the top of the threaded frame 43 cannot produce a sufficiently large force by squeezing the limit plate 44 The torque of the limit plate 44 cannot overcome the torsion of the torsion spring, and the columnar protrusion at the top of the threaded frame 43 enters the arc groove of the driven gear 40 and slides into the outer ring groove of the driven gear 40. During the sliding process of the columnar protrusion at the top of the threaded frame 43 in the arc groove of the driven gear 40, the side of the arc groove squeezes the columnar protrusion at the top of the threaded frame 43, so that the threaded frame 43 compresses the fifth spring. When the top of the threaded frame 43 slides into the outer ring groove, the thread of the threaded frame 43 is disengaged from the threaded rod 41. , causing the threaded rod 41 to lose its limit, and then the fourth spring is released and quickly pushes the plug rod 42, so that the plug rod 42 is inserted into the mud. When one end of the plug rod 42 moves to the bottom of the lower shell 6 in a nail cap shape, the lower shell 6 limits the plug rod 42 from continuing to move downward, so that the plug rod 42 remains stationary. During the movement of the plug rod 42, the threaded rod 41 is driven to move synchronously. At this time, the plug rod 42 inserted into the mud limits the movement of the lower shell 6, thereby completing the fixation of the lower shell 6 before the drill barrel 10 drills into the mud.

[0032] After completing the fixation of the lower shell 6 above the sludge, the staff readjusts the second motor 7. The output shaft of the second motor 7 rotates counterclockwise to drive the driving gear 8 to rotate. The driving gear 8 rotates and drives the driven gear 40 to rotate counterclockwise through the transmission gear 9. Under the push of the fifth spring on the threaded frame 43, the driven gear 40 rotates to make the columnar protrusion on the top of the threaded frame 43 slide along the outer ring groove of the driven gear 40 into the arc groove, and enter the inner ring groove of the driven gear 40 through the arc groove of the driven gear 40. At this time, the threaded rod 41 is limited by the thread of the threaded frame 43. The columnar protrusion on the top of the threaded frame 43 will squeeze the limiting plate 44 during the sliding process in the inner ring groove. The position where the columnar protrusion at the top squeezes the limit plate 44 is far from the rotation axis of the limit plate 44, so it will generate a torque large enough to make the limit plate 44 overcome the torsion force of the torsion spring, thereby making the columnar protrusion at the top of the threaded frame 43 continue to slide in the inner ring groove. After the columnar protrusion at the top of the threaded frame 43 passes the limit plate 44, the torsion spring is released to reset the limit plate 44. At this time, the threaded frame 43 has been reset, so that the threads of the threaded frame 43 re-contact the threaded rod 41. Since the insertion rod 42 has been inserted into the silt, and the silt has a high viscosity and poor fluidity, the insertion rod 42 remains stationary in the silt, and the driven gear 40 rotates to rotate the threaded rod 41 through the spline groove of the driven gear 40 itself. , so that the threaded frame 43 moves downward along the thread of the threaded rod 41 and compresses the fourth spring. In the process of the threaded frame 43 moving downward, the lower shell 6 is driven to move downward synchronously. At the same time, the transmission gear 9 drives the drill tube 10 to rotate clockwise during the rotation. The rotation of the drill tube 10 controls the first sealing column 12 through the sliding tube 11 to drive the stirring blade 13 to rotate synchronously, and the downward movement of the lower shell 6 drives the drill tube 10 to move downward, so that the silt is stirred by the drill tube 10 and the stirring blade 13. When the drill tube 10 moves downward and drills into the silt, the thread of the outer wall rotates to push the silt upward, and the silt structure at the outer wall of the drill tube 10 is loosened, and the water flow will penetrate into the outer wall of the drill tube 10 through water pressure. The silt at the outer wall of the drill barrel 10 is moved into the silt, thereby increasing the water content of the silt at the outer wall of the drill barrel 10, and the silt at the bottom of the drill barrel 10 moves along the rotation radius of the stirring blade 13, which is convenient for the stirring blade 13 to move downward in the silt. The rotation of the stirring blade 13 makes the silt structure at the bottom of the drill barrel 10 looser, so that the moisture of the silt at the outer wall of the drill barrel 10 penetrates into the silt at the bottom of the drill barrel 10, and the water content of the silt at the bottom of the drill barrel 10 increases, until the fourth spring is fully compressed, indicating that the drill barrel 10 and the stirring blade 13 have reached the maximum distance for downward movement. At this time, the second motor 7 is remotely turned off to stop the rotation of the drill barrel 10 and the stirring blade 13, and the staff completes the positioning of the water sample collection position in the silt.

[0033] After the drill tube 10 has drilled into the silt and completed positioning, the staff needs to collect the silt seepage through the device. The staff remotely starts the third motor 15, and the output shaft of the third motor 15 rotates through the screw 16 to drive the first sealing column 12 to move slowly upward. During the upward movement of the first sealing column 12, the silt on the outer wall of the first sealing column 12 will be scraped off by the drill tube 10 and the bottom of the fan blade 101, and the upward movement of the first sealing column 12 causes the stirring blade 13 to move synchronously. During the upward movement of the stirring blade 13, it is squeezed by the drill tube 10 and rotates toward the axis of the first sealing column 12, so that the stirring blade 13 squeezes the first spring, and the stirring blade 13 is pressed against the first spring at the first sealing column 12. After losing contact with the fan blade 101, the magnetic blocks on both sides of the fan blade 101 attract each other, and since the first sealing column 12 moves upward, the air pressure in the drill barrel 10 is relatively small, which will cause part of the sludge to push one side of the fan blade 101. Under the push of the sludge, the sludge in the gaps between adjacent fan blades 101 will be squeezed out by the fan blades 101, so that the circumferentially distributed fan blades 101 form a conical cylinder with a smaller inner diameter at the bottom. The conical cylinder structure formed by the fan blades 101 can reduce the cross-sectional area of ​​large pieces of sludge when moving upward, thereby increasing the resistance of large pieces of sludge when rising, preventing large pieces of sludge from entering the drill barrel 10 to interfere with the extraction of sludge exudate, and improving the collection quality of sludge exudate. During the upward movement of the sealing column 12, since the first sealing column 12 is separated from the bottom of the drill barrel 10 and the drill barrel 10 is inserted into the silt at this time, the first sealing column 12, the drill barrel 10 and the silt form a first cavity. Since the drill barrel 10 and the stirring blade 13 rotate, the water content of the silt at the bottom of the drill barrel 10 increases, and it is easier for water to flow. Therefore, the water content of the silt at the bottom of the drill barrel 10 will fully dissolve the soluble substances in the silt, and seep upward under the action of water pressure to form silt exudate. The silt exudate enters the first cavity through the bottom of the drill barrel 10. Since the drill barrel 10 is located at the bottom of the water, the liquid level of the silt exudate will continue to rise. The first sealing column 12 gradually rises, and the air pressure in the first cavity becomes smaller, so that the sludge seepage liquid enters the first cavity faster. It is worth noting that the upper shell 5, the sliding cylinder 11 and the water-blocking chamber 14 constitute the second cavity. As the liquid level of the sludge seepage liquid continues to rise, the sludge seepage liquid will enter the bottom end of the first liquid hole of the sliding cylinder 11 from the first cavity, and flow upward through the first liquid hole into the second cavity. The air in the second cavity is squeezed by the sludge seepage liquid into the four-way liquid hole of the upper shell 5, and flows along the first one-way valve 24 to the outside of the device. At this time, the sludge seepage liquid begins to enter the device, thereby starting the detection and collection of the sludge seepage liquid.

[0034] As the sludge seepage liquid enters into the second cavity composed of the upper shell 5, the sliding cylinder 11 and the water-proof chamber 14 through the first liquid hole of the sliding cylinder 11, the liquid level of the sludge seepage liquid in the second cavity will continue to rise. It is worth noting that the sludge seepage liquid still contains a small amount of precipitable matter. In the process of the liquid surface of the sludge seepage liquid moving upward, the precipitable matter will be deposited on the top of the water-proof chamber 14, and the sedimentation speed of the precipitable matter with a larger density will be faster. When the liquid level of the sludge seepage liquid is higher than the first buoyancy plate 20, the first buoyancy plate 20 is affected by the buoyancy from the sludge seepage liquid and moves upward. The first buoyancy plate 20 moves upward and drives the rotating scraper 18 to rotate through the threaded cylinder 19. The threaded cylinder 19 moves upward and drives the sealing sleeve 191 to extend. At this time, the rotation of the rotating scraper 18 is affected by the buoyancy from the water-proof chamber 14. The resistance of the settleable matter on the top changes the rising speed of the first buoyancy plate 20. The rising speed of the first buoyancy plate 20 is captured by the distance sensor 171. Then the distance sensor 171 sends the rising speed data of the first buoyancy plate 20 to the signal receiver, and the external signal receiver processes the data. It is worth noting that the more settleable matter there is, the greater the resistance to the rotation of the rotating scraper 18, and the greater the buoyancy required by the first buoyancy plate 20 to drive the rotating scraper 18 to rotate. The rising speed of the first buoyancy plate 20 is also slower, and the turbidity of the sludge exudate can be analyzed. Since the sedimentation speed of the settleable matter with a larger density will be faster, the density ratio of the settleable matter can also be obtained through the rising speed of the first buoyancy plate 20, which effectively improves the detection accuracy of the turbidity of the sludge exudate.

[0035] In the process of the sludge seepage driving the first buoyancy plate 20 to move upward, if the sludge seepage is not filtered, a small amount of precipitable matter will adhere to the surface of the sleeve part inside the sealing sleeve 191 as the sludge seepage flows, thereby causing wear when the sealing sleeve 191 is shortened and interfering with the next use of the rotating scraper 18. Therefore, before the sludge seepage drives the first buoyancy plate 20, the sludge seepage needs to be filtered. The sludge seepage will pass through the filter screen 22 in the process of flowing to the first buoyancy plate 20, causing the precipitable matter to adhere to the filter screen 22, and the weight of the filter screen 22 will increase, thereby causing the sliding frame 21 and the filter screen 22 to press down the first pressure sensor 23 at the bottom thereof through the second spring. The weight of the precipitable matter of the particle size corresponding to the filter screen 22 can be judged by the pressure applied to the first pressure sensor 23, and then the content of the precipitable matter of the particle size in the sludge seepage can be obtained. Subsequently, the first pressure sensor 23 sends the precipitable matter weight data of the particle size corresponding to the filter screen 22 to an external signal receiver.

[0036] As the sludge seepage liquid continuously enters the second cavity composed of the upper shell body 5, the sliding cylinder 11 and the water-isolating chamber 14, the liquid level of the sludge seepage liquid in the second cavity continuously rises, so that the sludge seepage liquid enters the four-way liquid hole of the upper shell body 5 from the second cavity, and flows to the sealing cover 26. It is worth noting that in the initial state, the sealing rod 28 is located at the bottom end of the sealing cover 26. Since the top of the ventilation groove 281 is higher than the water-passing groove 282, when the sludge seepage liquid simultaneously immerses the top of the ventilation groove 281 and the water-passing groove 282, the sludge seepage liquid pressure at the top of the water-passing groove 282 is greater, and the ventilation groove 281 and the water-passing groove 282 generate a longer pressure, so that the sludge seepage liquid flows along the water-passing groove 282 into the storage cylinder 25, and the air in the storage cylinder 25 is discharged to the four-way liquid hole through the ventilation groove 281, and flows to the outside of the device through the first one-way valve 24. When the sludge seepage liquid in the storage cylinder 25 When the liquid level touches the second buoyancy plate 29, the second buoyancy plate 29 is subjected to the buoyancy of the sludge exudate, thereby driving the sealing rod 28 to move upward. During the upward movement of the sealing rod 28, the serrated slider 27 is squeezed, and the serrated slider 27 reciprocates to squeeze and release the third spring. When the sealing rod 28 is displaced to the top of the sealing cover 26, the ventilation groove 281 and the water groove 282 of the sealing rod 28 are blocked by the inclined surface inside the sealing cover 26, and the inclined surface of the serrated slider 27 will hinder the sealing rod 28 from moving downward. Therefore, the sealing rod 28 is difficult to be pressed downward by the sludge exudate, thereby ensuring the sealing of the top of the storage cylinder 25, effectively protecting the sludge exudate in the storage cylinder 25 from being disturbed by the sludge exudate collected in other time periods, realizing the storage and protection of the sludge exudate in the storage cylinder 25, and improving the accuracy of the sludge exudate detection by the staff after obtaining the sludge exudate in the storage cylinder 25.

[0037] While the storage cylinder 25 collects the sludge exudate, the sludge exudate in the four-way liquid hole of the upper shell 5 flows to the top of the heating cylinder 31 through the guide cylinder 30. It is worth noting that in the initial state, the bottom of the second sealing column 32 does not contact the heating cylinder 31, and the sludge exudate enters the second liquid hole of the heating cylinder 31, and impacts the water wheel 33, causing the water wheel 33 to overcome the damping of the heating cylinder 31 by the one-way damping gear 34 and rotate, and drive the sludge exudate to enter the heating cylinder 31, the air inside the heating cylinder 31 enters the vent hole of the heating cylinder 31 and is discharged to the four-way liquid hole through the second one-way valve 37, and finally flows to the outside of the device through the first one-way valve 24. During the rotation of the water wheel 33, the water wheel 33 drives the rack through the one-way damping gear 34 35 moves downward, and the rack 35 moves downward, driving the slide bar 36 and the second sealing column 32 to move downward. When the bottom of the second sealing column 32 contacts the heating cylinder 31, the second liquid hole of the heating cylinder 31 is blocked by the second sealing column 32. At this time, the heating wire 39 is started to evaporate the sludge exudate in the heating cylinder 31 by heat. The volatilized water vapor enters the vent hole of the heating cylinder 31 and is discharged to the four-way liquid hole through the second one-way valve 37, and finally flows to the outside of the device through the first one-way valve 24. When the sludge exudate is completely volatilized, all the solid soluble substances will adhere to the top of the second pressure sensor 38. The weight of the solid soluble substances is detected by the second pressure sensor 38 and sent to the external signal receiver, thereby judging the influence of the sludge on the water quality.

[0038] After completing the water quality collection and detection, the staff needs to recover the device. The staff remotely starts the third motor 15, and the output shaft of the third motor 15 rotates in the opposite direction, thereby driving the screw 16 to drive the first sealing column 12 to move downward. The downward movement of the first sealing column 12 will block the first liquid hole of the sliding tube 11, re-contact and squeeze the fan blade 101, so that the adjacent fan blades 101 are separated, and the first sealing column 12 moves downward to make the stirring blade 13 move synchronously, and the stirring blade 13 moves downward and disengages from the drill tube 10. The first spring is released to push the stirring blade 13 to rotate and reset. Then the staff remotely starts the first motor 2, so that the output shaft of the first motor 2 rotates in the opposite direction to drive the winding shaft 3 to rotate, and the tensile wire 4 on the winding shaft 3 drives the lower shell 6 to move upward through the upper shell 5, so that the upper shell 5 and the lower shell 6 are reset. Then the staff starts the propeller 45, so that the propeller 45 pushes the water flow, and the propeller 45 is subjected to the reaction force to drive the waterproof shell 1 to move, and the waterproof shell 1 moves to the recovery location. At this time, the staff can grab the lifting ring 46 by manual or mechanical equipment to recover the device.

[0039] After the recovery device, it is necessary to take out the sludge seepage liquid in the storage cylinder 25 for more detailed inspection. The staff rotates the fastening ring 501 to separate the fastening ring 501 from the upper shell 5 and the lower shell 6. Then the staff takes out the storage cylinder 25 and manually presses the sealing rod 28 to separate the sealing rod 28 from the internal inclined surface of the sealing cover 26, and makes the serrated slider 27 reciprocate and squeeze the third spring. When the sealing rod 28 is reset, the staff tilts the storage cylinder 25 to make the sludge seepage liquid flow out through the ventilation groove 281 and the water groove 282, so that the staff can inspect the sludge seepage liquid. After the sludge seepage liquid in the storage cylinder 25 is taken out, the solid soluble matter on the second pressure sensor 38 needs to be cleaned for the next use. The staff takes out the guide cylinder 30 and turns the guide cylinder 30 over so that the top of the guide cylinder 30 faces downward. At this time, the one-way damping gear 34 has no resistance, and the second sealing column 32 is reset under the action of gravity, and the one-way damping gear 34 is controlled by the rack 35 to drive the water wheel 33 to rotate and reset. Then the staff turns the guide cylinder 30 over and resets, and pours clean water into the guide cylinder 30. The clean water flows into the second liquid hole of the heating cylinder 31 and hits the water wheel 33. 3, the water wheel 33 overcomes the damping of the one-way damping gear 34 on the heating tube 31 and rotates, and drives clean water into the interior of the heating tube 31, so that the clean water contacts and dissolves the solid soluble matter to form a solution. Then the staff repeats the above-mentioned process of flipping and resetting the second sealing column 32, wherein the rotation of the water wheel 33 drives the solution to pass through the second liquid hole, so that the solution is separated from the guide tube 30 by gravity, and at the same time, the solution also enters the vent hole of the heating tube 31 and is discharged through the second one-way valve 37, and then separates from the guide tube 30, and finally realizes the cleaning of the solid soluble matter on the second pressure sensor 38.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable water sample detection device, comprising a waterproof housing (1), characterized in that: The invention also comprises a first motor (2), wherein the first motor (2) is fixedly installed in the waterproof housing (1), a winding shaft (3) is fixedly connected to the output shaft of the first motor (2), a tensile wire (4) is wound around the winding shaft (3), one end of the tensile wire (4) is fixedly connected to the upper housing (5), the outer wall of the upper housing (5) is sealed and rotatably connected to a fastening ring (501), the fastening ring (501) is sealed and threadedly clamped to the lower housing (6), the lower housing (6) is in sealing contact with the upper housing (5), a second motor (7) is installed in the lower housing (6) and is rotatably connected to a transmission gear (9), a driving gear (8) meshing with the transmission gear (9) is fixedly connected to the output shaft of the second motor (7), a drill tube (10) is sleeved and fixedly connected to the transmission gear (9), and the drill tube (10) is sealed and threadedly clamped to the lower housing (6). The drill tube (10) is connected in a sealed rotational manner, and the top of the drill tube (10) is connected in a sealed rotational manner to the upper shell body (5). A sliding tube (11) is fixedly connected inside the drill tube (10). The top of the sliding tube (11) is connected in a sealed rotational manner to the upper shell body (5). A first fluid hole is circumferentially distributed inside the sliding tube (11). A first sealing column (12) is connected in a sealed sliding manner inside the sliding tube (11). A watertight compartment (14) is fixedly connected inside the sliding tube (11). The space at the top of the watertight compartment (14) and the space at the bottom are connected via the first fluid hole of the sliding tube (11). A third motor (15) is installed in the watertight compartment (14). The output shaft of the third motor (15) passes through the watertight compartment (14) and is fixedly connected to a screw rod (16). The screw rod (16) is threadedly connected to the first sealing column (12) and is rotationally connected to the watertight compartment (14).

2. A portable water sample detection device according to claim 1, characterized in that: It also comprises fan blades (101), which are rotatably connected to the inner circumference of the drill tube (10), the fan blades (101) are in contact with the outer wall of the first sealing column (12), and magnetic blocks are embedded and fixedly connected to both sides of the fan blades (101).

3. A portable water sample detection device according to claim 2, characterized in that: It also includes a stirring blade (13). The bottom of the first sealing column (12) is provided with vertical grooves distributed in the circumferential direction. The stirring blade (13) is rotatably connected in the vertical groove. A first spring is connected between the stirring blade (13) and the first sealing column (12).

4. A portable water sample detection device according to claim 3, characterized in that: The invention also comprises a support tube (17), the bottom of the upper shell (5) is fixedly connected to the support tube (17), the top of the support tube (17) is provided with a distance sensor (171), the bottom of the support tube (17) is rotatably connected to a rotating scraper (18), the bottom of the rotating scraper (18) is rotatably connected to the water barrier (14), the rotating scraper (18) is internally threadedly connected to a threaded tube (19), the outer sleeve of the threaded tube (19) is sealed with a sealing sleeve (191), the sealing sleeve (191) is sealedly connected to the support tube (17), the top of the threaded tube (19) is fixedly connected to a first buoyancy plate (20), the distance sensor (171) is used to detect the moving speed of the first buoyancy plate (20), and the first buoyancy plate (20) is slidably connected to the support tube (17).

5. A portable water sample detection device according to claim 4, characterized in that: It also includes a sliding frame (21), a filter screen (22) and a first pressure sensor (23); the sliding frame (21) is connected to the supporting cylinder (17) in a mirror-image-distributed sealed sliding manner; the filter screen (22) is fixedly connected to the sliding frame (21); the first pressure sensor (23) is fixedly mounted on the bottom of the supporting cylinder (17); and a second spring is connected between the top of the first pressure sensor (23) and the sliding frame (21).

6. A portable water sample detection device according to claim 5, characterized in that: The invention also comprises a first one-way valve (24), a four-way liquid hole is provided inside the upper shell (5), the first one-way valve (24) is installed on the top of the upper shell (5), the first one-way valve (24) is communicated with the four-way liquid hole, a storage cylinder (25) is slidably connected inside the lower shell (6), the storage cylinder (25) is communicated with the four-way liquid hole, a sealing cover (26) is fixedly connected to the top of the storage cylinder (25), a sawtooth slider (27) and a sealing rod (28) are slidably connected inside the sealing cover (26), a third spring is connected between the sawtooth slider (27) and the sealing cover (26), the inclination of the top of the outer wall of the sealing rod (28) is greater than that of the bottom, the sealing rod (28) cooperates with the sawtooth slider (27), a ventilation groove (281) and a water groove (282) are circumferentially distributed on the sealing rod (28), and a second buoyancy plate (29) is fixedly connected to the bottom of the sealing rod (28).

7. A portable water sample detection device according to claim 6, characterized in that: The invention also comprises a guide cylinder (30), the guide cylinder (30) being slidably engaged in the lower shell (6), the guide cylinder (30) being communicated with the four-way liquid-passing hole of the upper shell (5), the guide cylinder (30) being fixedly connected in the guide cylinder (30), the heating cylinder (31) being rotatably connected in the heating cylinder (31), a water wheel (33) being rotatably connected in the heating cylinder (31), a one-way damping gear (34) being fixedly connected to one side of the water wheel (33), the one-way damping gear (34) being in contact with the heating cylinder (31), a second liquid-passing hole being provided in the heating cylinder (31), the water wheel (33) being rotatably connected to the second liquid-passing hole, and the heating cylinder (31) being provided with a second liquid-passing hole. The second liquid-passing hole is in sealing contact with the second liquid-passing hole, a rack (35) is slidably connected in the second liquid-passing hole, the rack (35) is meshed with the one-way damping gear (34), a second sealing column (32) is arranged on the top of the rack (35), a sliding bar (36) is fixedly connected to one side of the rack (35), the sliding bar (36) is sealingly slidably connected to the second liquid-passing hole, a vent hole is opened in the heating tube (31), a second one-way valve (37) is fixedly installed in the vent hole, and a second pressure sensor (38) and a heating wire (39) are installed in the heating tube (31).

8. A portable water sample detection device according to claim 7, characterized in that: Also includes A driven gear (40) and a threaded frame (43) are provided. The driven gear (40) meshing with the transmission gear (9) is rotatably connected in the lower housing (6). A threaded rod (41) is slidably connected in the driven gear (40). The top of the threaded rod (41) is sealed and slidably connected to the upper housing (5). The bottom of the threaded rod (41) is fixedly connected to an insertion rod (42). One end of the insertion rod (42) is in a nail cap shape. The insertion rod (42) is sealed and slidably connected to the lower housing (6). A fourth spring is connected between the insertion rod (42) and the lower housing (6). An inner ring is provided at the bottom of the driven gear (40). The driven gear (40) further comprises an arc groove connecting the inner ring groove and the outer ring groove at the bottom thereof, the arc groove and the inner ring groove are rotatably connected to a limit plate (44) at the connection point, a torsion spring is connected between the limit plate (44) and the driven gear (40), a threaded frame (43) is slidably connected in the lower housing (6), a threaded frame (43) is provided with a thread on one side thereof and cooperates with the threaded rod (41), a fifth spring is connected between the threaded frame (43) and the lower housing (6), a columnar protrusion is provided at the top of the threaded frame (43), and the columnar protrusion at the top of the threaded frame (43) is slidably connected to the inner ring groove.

9. A portable water sample detection device according to claim 8, characterized in that: The waterproof housing (1) also comprises a propeller (45), a lifting ring (46), a third buoyancy plate (47) and an arresting ring (48); the bottom of the waterproof housing (1) is provided with filter holes distributed circumferentially; the waterproof housing (1) is provided with a propeller (45) fixedly installed in a sealed manner distributed circumferentially; the third buoyancy plate (47) is fixedly installed circumferentially; the top of the waterproof housing (1) is fixedly connected with a lifting ring (46); the bottom of the waterproof housing (1) is fixedly connected with an arresting ring (48); and the bottom of the arresting ring (48) is provided with a semicircular groove.

10. The detection method of a portable water sample detection device according to claim 9, characterized in that: The following steps are involved: S1: The staff puts the device into water, starts the propeller (45), and causes the propeller (45) to drive the waterproof housing (1) to move above the sludge seepage liquid collection area, and starts the first motor (2) to insert the bottom of the stirring blade (13) into the sludge, thereby completing the positioning of the device at the sludge seepage liquid collection position; S2: The staff starts the second motor (7), and the output shaft of the second motor (7) rotates clockwise to make the threaded rod (41) lose its limit position, and the fourth spring is released to make the insertion rod (42) insert into the mud, thereby completing the fixation of the lower housing (6) before the drill tube (10) drills into the mud; S3: The staff readjusts the second motor (7), and the output shaft of the second motor (7) rotates counterclockwise to drive the lower housing (6) to move downward synchronously, and drives the drill tube (10) and the stirring blade (13) to rotate synchronously, so as to loosen the sludge structure and increase the water content, until the fourth spring is fully compressed, and the water sample collection position is positioned in the sludge; S4: the staff starts the third motor (15), and the output shaft of the third motor (15) rotates to move the first sealing column (12) upward, thereby reducing the air pressure in the first cavity formed by the first sealing column (12), the drill pipe (10) and the sludge, thereby accelerating the seepage of the sludge exudate, and at the same time, the fan blades (101) form a cone shape to prevent large pieces of sludge from entering the first cavity; S5: The sludge exudate is driven by the buoyancy force to move the first buoyancy plate (20) upwards, and the rising speed of the first buoyancy plate (20) is captured by the distance sensor (171), and the turbidity of the sludge exudate is obtained. The precipitable matter in the sludge exudate adheres to the filter screen (22), and the first pressure sensor (23) is subjected to more pressure to obtain the content of the precipitable matter. After the sludge exudate enters the four-way liquid hole of the upper shell (5), the buoyancy force drives the sealing rod (28) to contact the sealing cover (26) to block the ventilation groove (281) and the water groove (282), so that the sludge exudate in the storage cylinder (25) is stored. The sludge exudate enters the heating cylinder (31), and the heating wire (39) is started to obtain solid soluble matter. The influence of the sludge on the water quality is judged by the second pressure sensor (38); S6: starting the third motor (15) to reset the stirring blade (13), starting the first motor (2) to reset the upper shell (5) and the lower shell (6), starting the propeller (45) to move the waterproof shell (1) to the recovery location, manually or mechanically grabbing the lifting ring (46) to recover the device, and then rotating the fastening ring (501) to separate it from the upper shell (5) and the lower shell (6), the staff takes out the storage cylinder (25) and presses the sealing rod (28) to reset it, tilting the storage cylinder (25) to allow the sludge exudate to flow out to complete the extraction of the sludge exudate, then the staff takes out the guide cylinder (30) and turns it over, the second sealing column (32) is reset by gravity, the guide cylinder (30) is turned over and clean water is poured in, the clean water enters the interior of the heating cylinder (31) through the second liquid through hole of the heating cylinder (31), and dissolves the solid soluble matter to form a solution, and the guide cylinder (30) is turned over to allow the solution to flow out from the second liquid through hole and the air vent of the heating cylinder (31), completing the cleaning of the solid soluble matter.

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