A sampling base station special for water quality detection

Abstract

This invention discloses a dedicated sampling base station for water quality testing, comprising a base station body with a positioning cylinder installed at its center, a floating airbag below it, and a ring-shaped battery box on its upper surface. The ring-shaped battery box contains a storage battery and solar cell modules, which are fixedly connected to the base station body. It also includes a winding and pressing mechanism and a submersible sampling mechanism. This invention utilizes the water filling inside the floating box and the gravity of the counterweight to allow the sampling bottle to quickly submerge in the water. The submersion depth can be controlled by adjusting the rope. This allows the sampling bottle to be connected to the outside air for sampling, effectively facilitating operation for staff while ensuring sampling accuracy. By pressing the inside of the sampling bottle to a pressure greater than the water pressure at the sampling location, leakage from other sampling bottles during sampling can be avoided. This allows the device to perform multiple samplings, reducing the need for frequent sample extraction by staff and decreasing their workload.

Description

Technical Field

[0001] This invention relates to the field of water quality testing technology, and in particular to a dedicated sampling base station 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. In long-term water storage areas such as rivers, lakes, and reservoirs, sampling stations are usually built near the water body to facilitate long-term, regular water quality monitoring.

[0003] Existing water quality testing sampling stations typically use submersible base stations or sampling pipes to sample water sources. While the current method of using gravity to submerge the base station can collect samples, the sampling location can deviate due to river currents, affecting sampling accuracy. Furthermore, samples cannot be stored in the base station during sampling, limiting the possibility of multiple samplings and requiring staff to frequently retrieve samples, increasing workload and reducing efficiency. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dedicated sampling base station for water quality testing includes a base station body, a positioning cylinder installed at its center, a floating airbag positioned below it, a ring-shaped battery box mounted on its upper surface, a battery housed inside the ring-shaped battery box, and solar cell modules mounted on the ring-shaped battery box, which are fixedly connected to the base station body. The base station body also includes:

[0007] A winding and pressing mechanism, located above the base station body, includes:

[0008] The bracket is set above the base station body and located on both sides of the outside of the positioning cylinder;

[0009] The winding drum is set above two supports, with connecting pipes installed at both ends. The connecting pipes are connected to the supports through bearings. Connecting ropes are installed at both ends of its outer surface, and an air supply pipe is installed at the center of its outer surface. One end of the air supply pipe is connected to the winding drum.

[0010] The lifting motor is installed on the side surface of one of the brackets. Its rotating end is connected to the corresponding connecting pipe through a bevel gear set. One end of the connecting pipe is equipped with a rotary joint, an exhaust pipe is installed on the rotary joint, and an exhaust valve is installed on the exhaust pipe.

[0011] A miniature air pump is mounted on the side surface of another bracket, with an air pump outlet pipe installed at its outlet end. The air pump outlet pipe is connected to the corresponding connecting pipe through a rotary joint.

[0012] The submersible sampling mechanism, housed within a positioning cylinder, comprises:

[0013] The upper baffle is located above the positioning cylinder. A lifting plate is installed above it. The lifting plate is connected to the upper baffle through a bearing. The lifting plate is connected to the connecting rope. Several upper pressure seats are evenly distributed on the outer side of its lower surface. An upper pressure groove is opened on the lower surface of the upper pressure seat. A sealing soft gasket is installed inside it. An air groove is opened at the center of the upper surface of the upper pressure groove.

[0014] The lower baffle is located below the upper baffle. Electric push rods are installed at the four corners of its upper surface. The telescopic ends of the electric push rods are fixedly connected to the upper baffle. Several pressure seats are installed on the outer end of its upper surface and are evenly distributed. The upper surface of the pressure seats has an installation groove.

[0015] The sampling bottle is located between the upper and lower pressure seats, with its lower end threadedly connected to the mounting groove. Its upper end is inserted into the upper pressure groove, and a pouring tube is provided at its upper end. A tube cap is threaded onto the pouring tube, and a one-way sampling seat is provided on its side surface. Sampling holes are evenly opened on it, and a silicone seat is installed inside it.

[0016] The sampling adjustment mechanism is located below the upper baffle.

[0017] The inflatable submersion mechanism is located below the lower baffle.

[0018] Furthermore, the sampling adjustment mechanism includes an adjustment box installed on the lower surface of the upper baffle, a circular air box disposed inside the adjustment box, an inflation / deflation pipe installed above the circular air box with its upper end extending out of the upper baffle and connected to the other end of the air supply pipe via a rotary joint, an annular baffle installed below the outer surface of the circular air box, several connecting air pipes disposed on the annular baffle corresponding to the position of the upper pressure seat, one end of which is connected to the circular air box, the other end of which is connected to the upper pressure seat at the corresponding position and communicates with the air groove, a pressure-resistant silicone hose disposed on the connecting air pipe and placed on the annular baffle, and a compression mechanism disposed on the pressure-resistant silicone hose.

[0019] Furthermore, the extrusion mechanism includes a pressure tube seat disposed above the pressure-resistant silicone hose, with a conical pressure block on its lower surface that contacts the pressure-resistant silicone hose; a U-shaped adjusting rod disposed below an annular baffle, with both ends sliding through the annular baffle and connected to the pressure tube seat; compression springs fitted at both ends of the U-shaped adjusting rod, located between the pressure tube seat and the annular baffle; an adjusting roller disposed on one side of the lower end of the U-shaped adjusting rod; an annular adjusting baffle disposed below the adjusting box, with its lower outer surface slidingly contacting the adjusting roller and an adjusting groove disposed on one side of its lower outer surface; and a stepper motor disposed inside the lower part of the adjusting box, with its rotating end connected to the annular adjusting baffle via a bevel gear and a gear plate.

[0020] Furthermore, the inflatable diving mechanism includes a floating box located below the lower baffle, an adjusting air pipe located at the center of the upper surface of the floating box with its upper end connected to a circular air box, an electromagnetic air valve installed on it and located inside the adjusting box, which is connected to the annular adjusting baffle via a bearing, a connecting rod located on the outer side of the upper surface of the floating box with its upper end connected to the adjusting box, an external pipe located at the center of the lower surface of the floating box, and a counterweight located at the center of the lower surface of the floating box, which is fitted onto the external pipe.

[0021] Furthermore, after the stepper motor completes one cycle, the annular adjusting baffle rotates at a certain angle, and the rotation angle is half of the included angle between two adjacent adjusting rollers.

[0022] Furthermore, when the adjusting roller contacts the lower surface of the annular adjusting baffle, the conical pressure block presses the pressure-resistant silicone hose, causing the pressure-resistant silicone hose to be in a disconnected state.

[0023] Furthermore, after the adjusting roller slides into the adjusting groove, the adjusting roller rises using the elasticity of the compression spring, causing the pressure tube seat to drive the conical pressure block to rise, thus putting the pressure-resistant silicone hose in a connected state.

[0024] Furthermore, when the sampling bottle is submerged in water, the internal air pressure is greater than the water pressure at the sampling location. Beneficial effects

[0025] A water quality testing sampling base station manufactured using the technical solution of the present invention has the following beneficial effects:

[0026] 1. By utilizing the water filling inside the floating box and the gravity of the counterweight, the sampling bottle can quickly submerge into the water, and its submersion depth can be controlled by adjusting the rope. Then, by utilizing the connection between the sampling bottle and the outside air, the sampling bottle can be used for sampling, which is convenient for staff to use.

[0027] 2. By pressurizing the inside of the sampling bottle to make the internal air pressure greater than the water pressure at the sampling location, the problem of leakage in other sampling bottles during the sampling process can be avoided. This allows the device to take samples multiple times without the need for staff to frequently extract samples, thus reducing their workload.

[0028] 3. By using the pressure-resistant rubber tube and conical pressure block, and by controlling the contact position of the annular adjusting baffle and adjusting roller, the opening and closing of the sampling bottle can be quickly controlled. In turn, by using the opening time of the pressure-resistant silicone hose, the sampling bottle can accurately take samples and avoid water leakage problems. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a water quality testing sampling base station according to the present invention;

[0030] Figure 2 This is a schematic diagram of the submersible sampling mechanism described in this invention;

[0031] Figure 3 This is the invention described Figure 2 A schematic diagram of the electric actuator after it has been extended;

[0032] Figure 4 This is a main sectional view of the regulating box described in this invention;

[0033] Figure 5 This is a top sectional view of the circular air box described in this invention;

[0034] Figure 6 This is a partially enlarged view of the pressure tube seat described in this invention;

[0035] Figure 7 This is a front view of the adjusting groove described in this invention;

[0036] Figure 8 This is a cross-sectional view of the sampling bottle described in this invention;

[0037] Figure 9 This is a main sectional view of the winding and pressing mechanism described in this invention;

[0038] In the picture:

[0039] 1. Base station body; 11. Positioning cylinder; 12. Floating airbag; 13. Ring-shaped battery box; 14. Storage battery; 15. Solar cell module.

[0040] 2. Winding and pressing mechanism; 21. Support; 22. Winding drum; 221. Connecting pipe; 222. Connecting rope; 223. Air supply pipe; 23. Lifting motor; 231. Rotary joint one; 232. Exhaust pipe; 233. Exhaust valve; 24. Miniature air pump; 241. Air pump outlet pipe; 242. Rotary joint two.

[0041] 3. Submersible sampling mechanism; 31. Upper baffle; 311. Lifting plate; 312. Upper pressure seat; 313. Upper pressure groove; 314. Sealing gasket; 315. Gas groove; 32. Lower baffle; 321. Electric push rod; 322. Lower pressure seat; 323. Mounting groove; 33. Sampling bottle; 331. Tilting tube; 332. Tube cap; 333. One-way sampling seat; 334. Sampling hole; 335. Silicone seat; 34. Sampling adjustment mechanism; 341. Adjustment box; 342. Circular gas box; 3421. Inflation / discharge pipe; 3422. Rotary joint 343. Annular baffle; 344. Connecting air pipe; 3441. Pressure-resistant silicone hose; 345. Compression mechanism; 3451. Compression pipe seat; 3452. Conical pressure block; 3453. U-shaped adjusting rod; 3454. Compression spring; 3455. Adjusting roller; 3456. Annular adjusting baffle; 3457. Adjusting groove; 3458. Stepper motor; 35. Inflatable submersion mechanism; 351. Float box; 352. Adjusting air pipe; 3521. Electromagnetic valve; 353. Connecting rod; 354. External pipe; 355. Counterweight. Detailed Implementation

[0042] 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.

[0043] Please see Figures 1 to 9 This application provides a dedicated sampling base station for water quality testing, including a base station body 1, a positioning cylinder 11 installed at its center, a floating airbag 12 below it, an annular battery box 13 on its upper surface, a storage battery 14 inside the annular battery box 13, and solar cell modules 15 on the annular battery box 13, which are fixedly connected to the base station body 1.

[0044] In this embodiment of the invention, the solar cell module 15 and the battery 14 enable the device to continuously supply power and ensure long-term use of the device, while the floating airbag 12 enables the base station body 1 to float on the water surface.

[0045] In this embodiment of the invention, to prevent the base station body 1 from moving with the water flow, the staff can use rope anchoring to fix the base station on the water surface and prevent it from moving with the water flow.

[0046] The winding and pressurizing mechanism 2 is located above the base station body 1 and includes: a bracket 21 located above the base station body 1 and on both sides of the outer side of the positioning cylinder 11; a winding drum 22 located above the two brackets 21, with connecting pipes 221 installed at both ends, the connecting pipes 221 being connected to the brackets 21 via bearings, connecting ropes 222 installed at both ends of its outer surface, and an air supply pipe 223 installed at the center of its outer surface, one end of the air supply pipe 223 being connected to the winding drum 22; a lifting motor 23 installed on the side surface of one of the brackets 21, its rotating end being connected to the corresponding connecting pipe 221 via a bevel gear set, a rotary joint 231 installed at one end of this connecting pipe 221, an exhaust pipe 232 installed on the rotary joint 231, and an exhaust valve 233 installed on the exhaust pipe 232; and a miniature air pump 24 installed on the side surface of the other bracket 21, with an air pump outlet pipe 241 installed at its outlet end, the air pump outlet pipe 241 being connected to the corresponding connecting pipe 221 via a rotary joint 242.

[0047] In this embodiment of the invention, the winding drum 22 is used to drive the submersible sampling mechanism 3 to rise and fall by winding the connecting rope 222 wound on it. At the same time, in order to ensure the accuracy of the descent depth of the submersible sampling mechanism 3, a positioning block can be set at a suitable position of the connecting rope 222 and positioned by the positioning rod on the bracket, so that the submersible sampling mechanism 3 can remain stationary after descending to the appropriate position, thereby ensuring the stability of its descent depth.

[0048] In this embodiment of the invention, by means of the air supply pipe 223 wound on the take-up drum 22 and connected to the take-up drum 22, the airtightness of the take-up drum 22 can be used to allow gas to be filled and released through the take-up drum 22 and the air supply pipe 223, which facilitates the operation of the device.

[0049] In this embodiment of the invention, by using the connecting pipe 221, on the one hand, the winding drum 22 can be rotated by its connection with the bearing, and on the other hand, one connecting pipe 221 can be used for inflation and the other connecting pipe 221 can be used for deflation.

[0050] In this embodiment of the invention, the lifting motor 23 is used to control the rotation of the winding drum 22 through the transmission of the bevel gear set. The micro air pump 24 is used to conveniently supply air to the device. At the same time, the rotary joint 231 and rotary joint 242 are used to ensure the airtightness of the device connection and the smoothness of operation.

[0051] The submersible sampling mechanism 3 is installed inside the positioning cylinder 11. It includes: an upper baffle 31 located above the positioning cylinder 11, a lifting plate 311 installed above it, the lifting plate 311 and the upper baffle 31 are connected by a bearing, the lifting plate 311 is connected to the connecting rope 222, and several upper pressure seats 312 are evenly distributed on the outer side of its lower surface. The lower surface of the upper pressure seat 312 has an upper pressure groove 313, and a sealing soft pad 314 is installed inside it. An air groove 315 is opened at the center of the upper surface of the upper pressure groove 313.

[0052] In this embodiment of the invention, the installation of the lifting plate 311 allows the submersible sampling mechanism 3 to rotate, thereby facilitating the installation and removal of the sampling bottle 33 by the staff and making the operation more convenient for the staff.

[0053] In this embodiment of the invention, the upper pressure seat 312 is used to allow the sampling bottle 33 to be fitted onto the sampling bottle 33 through the upper pressure groove 313 and the sealing gasket 314 to seal it. This allows the sampling bottle 33 to communicate with the gas groove 315 through the pouring tube 331 and ensures the airtightness of the communication. On the one hand, this facilitates the fixing of the sampling bottle 33, and on the other hand, it ensures the inflation and deflation of the sampling bottle 33.

[0054] The lower baffle 32 is located below the upper baffle 31. Electric push rods 321 are installed at the four corners of its upper surface. The telescopic ends of the electric push rods 321 are fixedly connected to the upper baffle 31. Several pressure seats 322 are installed on the outer end of its upper surface and are evenly distributed. The upper surface of the pressure seats 322 has an installation groove 323.

[0055] In this embodiment of the invention, the electric push rod 321 can be used to control the interval between the upper baffle 31 and the lower baffle 32 by extending and retracting the electric push rod 321, thereby controlling the clamping of the sampling bottle 33. The mounting groove 323 can be used to facilitate the placement of the sampling bottle 33.

[0056] The sampling bottle 33 is located between the upper pressure seat 312 and the lower pressure seat 322, and its lower end is threadedly connected to the mounting groove 323. Its upper end is inserted into the upper pressure groove 313. A pouring tube 331 is provided at its upper end. A tube cap 332 is threaded on the pouring tube 331. A one-way sampling seat 333 is provided on its side surface. Sampling holes 334 are evenly opened on it. A silicone seat 335 is installed inside it.

[0057] In this embodiment of the invention, the sampling bottle 33 is quickly fixed to the lower pressure seat 322 by using the threaded connection between the sampling bottle 33 and the mounting groove 323, thereby preventing the sampling bottle 33 from falling off due to accident when the upper baffle 31 is raised, and thus preventing the sampling bottle 33 from falling into the water and being lost.

[0058] In this embodiment of the invention, by setting up a one-way sampling seat 333 and sealing the sampling hole 334 with a silicone seat 335, on the one hand, the sampling bottle 33 can be sealed by inflation and pressurization, preventing water from being injected into the sampling bottle 33 due to excessive water pressure after the sampling bottle 33 is submerged, thus ensuring the cleanliness of the inside of the sampling bottle 33 and enabling the device to perform multiple samplings; on the other hand, the connection between the sampling bottle 33 and the outside air can be used to enable sample sampling, and after sampling, it can be re-inflated to prevent the sample from being re-injected during subsequent samplings.

[0059] The sampling adjustment mechanism 34 includes an adjustment box 341 installed on the lower surface of the upper baffle 31, a circular air box 342 disposed inside the adjustment box 341, an air filling / discharging pipe 3421 installed above the circular air box 342 with its upper end extending out of the upper baffle 31 and connected to the other end of the air supply pipe 223 via a rotary joint 3422, an annular baffle 343 installed below the outer surface of the circular air box 342, several connecting air pipes 344 disposed on the annular baffle 343 corresponding to the upper pressure seat 312, one end of which is connected to the circular air box 342 and the other end is connected to the upper pressure seat 312 at the corresponding position and communicates with the air groove 315, a pressure-resistant silicone hose 3441 disposed on the connecting air pipes 344 and placed on the annular baffle 343, and a compression mechanism 345 disposed on the pressure-resistant silicone hose 3441.

[0060] In this embodiment of the invention, the circular gas box 342 facilitates its connection with each connecting gas tube 344, thereby enabling multiple sampling bottles 33 to be connected to the circular gas box 342. At the same time, the pressure-resistant silicone hose 3441 provided on the connecting gas tube 344 allows the clamping and loosening of the pressure-resistant silicone hose 3441 by the squeezing mechanism 345 to control the connection between the circular gas box 342 and the sampling bottles 33, thereby controlling the internal air pressure and facilitating sampling.

[0061] In this embodiment of the invention, the maximum pressure-bearing capacity of the pressure-resistant silicone hose 3441 is much greater than the water pressure at the sampling location, which can effectively ensure the stability of the device operation and prevent the pressure-resistant silicone hose 3441 from being damaged when the sampling bottle 33 is pressurized.

[0062] The extrusion mechanism 345 includes a pressure tube seat 3451 disposed above the pressure-resistant silicone hose 3441, with a conical pressure block 3452 disposed on its lower surface, the conical pressure block 3452 contacting the pressure-resistant silicone hose 3441; a U-shaped adjusting rod 3453 disposed below the annular baffle 343, with both ends sliding through the annular baffle 343 and connected to the pressure tube seat 3451; compression springs 3454 fitted at both ends of the U-shaped adjusting rod 3453, located between the pressure tube seat 3451 and the annular baffle 343; an adjusting roller 3455 disposed on one side of the lower end of the U-shaped adjusting rod 3453; an annular adjusting baffle 3456 disposed below the adjusting box 341, with the outer end of its lower surface slidingly contacting the adjusting roller 3455, and an adjusting groove 3457 disposed on one side of the outer end of its lower surface; and a stepper motor 3458 disposed inside the lower part of the adjusting box 341, the rotating end of which is connected to the annular adjusting baffle 3456 via bevel gears and a gear plate.

[0063] In this embodiment of the invention, the position of the groove 3457 on the annular adjusting baffle 3456 is adjusted by rotating the baffle. The adjusting roller 3455 is then inserted into the adjusting groove 3457 by the elasticity of the compression spring 3454. This reduces the pressure on the pressure-resistant silicone tubing 3441, allowing it to gradually open and facilitating communication between the sampling bottle 33 and the outside world. When the adjusting roller 3455 moves out of the adjusting groove 3457 by rotating the stepper motor 3458, the conical pressure block 3452 presses the pressure-resistant silicone tubing 3441 again, sealing the sampling bottle 33 and facilitating control of the sampling process.

[0064] In this embodiment of the invention, the lower end of the conical pressure block 3452 is arc-shaped, which can prevent the pressure-resistant silicone hose 3441 from breaking after long-term use and ensure the service life of the device.

[0065] In this embodiment of the invention, when the adjusting roller 3455 contacts the lower surface of the annular adjusting baffle 3456, the pressure-resistant silicone hose 3441 is in a compressed state, which ensures that only one sampling bottle 33 can be sampled when the device is in use, while other sampling bottles 33 are kept sealed by air pressure to avoid contamination affecting the accuracy of sampling.

[0066] The inflatable diving mechanism 35 includes a float box 351 located below the lower baffle 32, an adjusting air pipe 352 located at the center of the upper surface of the float box 351 with its upper end connected to a circular air box 342, an electromagnetic air valve 3521 installed on the pipe and located inside the adjusting box 341, which is connected to an annular adjusting baffle 3456 via a bearing, a connecting rod 353 located on the outer side of the upper surface of the float box 351 with its upper end connected to the adjusting box 341, an external pipe 354 located at the center of the lower surface of the float box 351, and a counterweight 355 located at the center of the lower surface of the float box 351, which is fitted onto the external pipe 354.

[0067] In this embodiment of the invention, by using the adjustable air pipe 352, air can be conveniently charged and depressed into the floating box 351, thereby controlling the water level inside and adjusting the buoyancy generated, thus controlling the raising and lowering of the device. By using the counterweight 355, the sinking efficiency of the device can be guaranteed, avoiding the waste of electrical energy caused by the low sinking efficiency of the device.

[0068] In this embodiment of the invention, by using the external pipe 354, external water can be injected into the floating box 351, thereby reducing the buoyancy of the floating box 351. At the same time, by using air pressure, the water inside the floating box 351 can be discharged through the external pipe 354, thereby increasing the buoyancy of the device and enabling it to float quickly, thereby controlling the rapid lifting and lowering of the device.

[0069] In this invention, after the stepper motor 3458 completes one cycle, the annular adjusting baffle 3456 rotates at a certain angle, and the rotation angle is half of the included angle between two adjacent adjusting rollers 3455. This allows for convenient control by the operator, ensuring that all adjusting rollers 3455 can contact the lower surface of the annular adjusting baffle 3456 and can be adjusted one by one into the adjusting groove 3457, thus facilitating the control and operation of the device.

[0070] In this invention, when the adjusting roller 3455 contacts the lower surface of the annular adjusting baffle 3456, the conical pressure block 3452 presses the pressure-resistant silicone hose 3441 tightly, so that the pressure-resistant silicone hose 3441 is in a disconnected state; this allows for convenient control of the connection between the sampling bottle 33 and the outside world, thereby controlling the sampling of the sample.

[0071] In this invention, after the adjusting roller 3455 slides into the adjusting groove 3457, the adjusting roller 3455 rises using the elasticity of the compression spring 3454, causing the pressure tube seat 3451 to drive the conical pressure block 3452 to rise, so that the pressure-resistant silicone hose 3441 is in a connected state; this facilitates the rapid injection of the sample into the sampling bottle 33 using water pressure, and at the same time, the sampling amount is controlled by the opening time of the pressure-resistant silicone hose 3441.

[0072] In this invention, when the sampling bottle 33 is submerged in water, the internal air pressure is greater than the water pressure at the sampling location; this can prevent external water from being injected into the empty sampling bottle 33 due to external water pressure after the device sinks, thus avoiding contamination and affecting the sampling accuracy.

[0073] 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.

[0074] In specific use of this invention, when it is necessary to install the sampling bottle 33, the staff moves to one side of the base station body 1 using tools such as boats, and then follows these steps:

[0075] S1: Control the electric push rod 321 to start rising, so that it pushes the upper baffle 31, which in turn causes the lower baffle 32 to start falling. When it falls to a suitable height, control the electric push rod 321 to stop working.

[0076] S2: The staff takes out the sampling bottle 33, removes the cap 332 from it, inserts it into the installation groove 323, and fixes the sampling bottle 33 in the installation groove 323 by rotating it.

[0077] S3: Repeat step S2 until all sampling bottles 33 are installed in the corresponding mounting slots 323. Then, control the electric push rod 321 to retract, reducing the distance between the upper baffle 31 and the lower baffle 32, and inserting the upper end of the sampling bottle 33 into the upper pressure slot 313. At the same time, the pouring tube 331 is inserted into the air slot 315 and sealed by the sealing gasket 314. At this point, the sampling bottle 33 is installed.

[0078] S4: Control the micro air pump 24 to start working, and simultaneously control the stepper motor 3458 to start working continuously. After the micro air pump 24 starts working, it inflates the take-up drum 22 through the air pump outlet pipe 241 and connecting pipe 221, and supplies air to the circular air box 342 through the air supply pipe 223 and the air filling and discharging pipe 3421. The continuous rotation of the stepper motor 3458 drives the annular adjusting baffle 3456 to rotate continuously, and the adjusting rollers 3455 alternately slide into the adjusting recess. Inside the groove 3457, the elasticity of the compression spring 3454 causes the pressure tube seat 3451 corresponding to each adjusting roller 3455 to rise one by one, and causes the corresponding pressure-resistant silicone hose 3441 to open and close alternately. By using the opening and closing of the pressure-resistant silicone hose 3441, the gas inside the circular gas box 342 is injected into the sampling bottle 33 through the connecting gas pipe 344 and the upper pressure seat 312, so that the sampling bottle 33 maintains a certain pressure, and its gas pressure is greater than the water pressure at the sampling position.

[0079] When sampling is required, follow these steps:

[0080] S1: Control the opening of the solenoid valve 3521 and the exhaust valve 233, and simultaneously control the operation of the lifting motor 23. With the opening of the solenoid valve 3521 and the exhaust valve 233, the floating box 351 is connected to the outside world through the adjustment of the air pipe 352-circular air box 342-inflation and deflation air pipe 3421-air supply pipe 223-rewind drum 22-connecting pipe 221-exhaust pipe 232. At the same time, the lifting motor 23 drives the connecting pipe 221 to rotate through the bevel gear set, causing the rewind drum 22 to release the air supply pipe 223 and the connecting rope 222, thereby causing the submersible sampling mechanism 3 to begin to descend. Meanwhile, external water is continuously injected into the floating box 351 through the external pipe 354 to reduce its buoyancy.

[0081] S2: After the solenoid valve 3521 and the exhaust valve 233 have been open for a certain period of time, the water volume inside the float box 351 reaches the set value. Then, the solenoid valve 3521 is closed. At this time, the submersible sampling mechanism 3 continues to descend using the gravity of the float box 31 and the counterweight 355. When the connecting rope 222 is released to a certain extent, the positioning block on it is locked on the positioning rod, thereby causing the submersible sampling mechanism 3 to descend to the appropriate position.

[0082] S3: At this time, the stepper motor 3458 is controlled to work for one cycle. The operation of the stepper motor 3458 drives the annular adjusting baffle 3456 to rotate at a certain angle, so that the adjusting roller 3455 at the corresponding position moves into the adjusting groove 3457. Then, the elasticity of the compression spring 3454 is used to make the conical pressure block 3452 rise and open the corresponding pressure-resistant silicone hose 3441. At this time, the sampling bottle 33 corresponding to this pressure-resistant silicone hose 3441 is connected to the outside through the upper pressure seat 312-connecting air pipe 344-circular air box 342-filling and discharging air pipe 3421-air supply pipe 223-winding drum 22-connecting pipe 221-exhaust pipe 232, so that the internal air pressure is the same as the outside air pressure. Then, the water pressure at the sampling position is used to make the sample pass through the sampling hole 334 through the water pressure and push open the silicone seat 335 to be injected into the sampling bottle 33.

[0083] S4: After a certain period of time, when the sample volume in the sampling bottle 33 reaches a certain level, the stepper motor 3458 is controlled to work for another cycle, causing the annular adjusting baffle 3456 to continue rotating at a certain angle, and the current adjusting roller 3455 to move out of the adjusting groove 3457. Then, by squeezing, the conical pressure block 3452 is lowered, pressing the pressure-resistant silicone hose 3441, thus disconnecting the sampling bottle 33 from the outside world. After a certain period of time, the external water pressure is used to continue injecting the sample into the sampling bottle 33 until the internal pressure of the sampling bottle 33 is the same as the external water pressure. At this point, the sampling work is completed.

[0084] S5: Control the micro air pump 24 to work, and at the same time close the exhaust valve 233 and open the solenoid valve 3521 to allow the micro air pump 24 to inject air into the floating box 351. The air pressure is used to force the water out of the floating box 351, thereby gradually increasing the buoyancy of the floating box 351. At the same time, control the lifting motor 23 to work in reverse, so that it drives the winding drum 22 to wind up the connecting rope 222 and the air supply pipe 223. The buoyancy of the floating box 351 causes the submersible sampling mechanism 3 to gradually rise until it is completely retracted into the positioning cylinder 11.

[0085] S6: When the water level inside the floating box 351 drops to a certain level, the solenoid valve 3521 is closed, and the micro air pump 24 is used to pressurize the circular air box 342 to a certain pressure. The micro air pump 24 is then stopped. After the submersible sampling mechanism 3 has fully risen, the lifting motor 23 is stopped. The stepper motor 3458 is then controlled to work in the reverse direction for one cycle, so that the sampling bottle 33, which has completed the sampling work, is connected to the circular air box 342 through the reopening of the pressure-resistant silicone hose 3441. Then, by re-pressurizing the sampling bottle 33, it is sealed by air pressure. Afterward, the stepper motor 3458 is controlled to work in the forward direction for one cycle to reset the device.

[0086] When it is necessary to remove the sampling bottle 33, simply control the electric push rod 321 to extend again, causing the lower baffle 32 to begin to descend and the upper end of the sampling bottle 33 to move out of the upper pressure seat 312. At the same time, install the tube cap 332 onto the pouring tube 331 to prevent sample leakage. Then, the staff can remove the sampling bottle 33 from the installation slot 323 by rotating the sampling bottle 33, and remove the sampling bottles 33 one by one by rotating the submersible sampling mechanism 3, and install a new sampling bottle 33.

[0087] During the operation of this device, the connecting rope 222 is fixed to the submersible sampling mechanism 3 by being installed on the lifting plate 311. The submersible sampling mechanism 3 can rotate on the lifting plate 311 through the bearing connection between the lifting plate 311 and the upper baffle 31. The lifting plate 311 and the upper baffle 31 can be fixed by a pin. On the one hand, the rotation of the submersible sampling mechanism 3 can be used to facilitate the installation and disassembly of the sampling bottle 33. On the other hand, the pin can be used to quickly fix the submersible sampling mechanism 3, avoiding its frequent shaking and affecting the stability of the device.

[0088] In the specific implementation of this device, after the sampling bottle 33 completes the sampling work and is removed from the mounting groove 323, the silicone seat 335 uses the water pressure inside the sampling bottle 33 to seal the sampling port 334, thereby preventing sample leakage.

[0089] 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 dedicated sampling base station for water quality testing, comprising a base station body, characterized in that, Also includes: A winding and pressing mechanism, located above the base station body, includes: The bracket is set above the base station body and located on both sides of the outside of the positioning cylinder; The winding drum is set above two supports, with connecting pipes installed at both ends. The connecting pipes are connected to the supports through bearings. Connecting ropes are installed at both ends of its outer surface, and an air supply pipe is installed at the center of its outer surface. One end of the air supply pipe is connected to the winding drum. The lifting motor is installed on the side surface of one of the brackets. Its rotating end is connected to the corresponding connecting pipe through a bevel gear set. One end of the connecting pipe is equipped with a rotary joint, an exhaust pipe is installed on the rotary joint, and an exhaust valve is installed on the exhaust pipe. A miniature air pump is mounted on the side surface of another bracket, with an air pump outlet pipe installed at its outlet end. The air pump outlet pipe is connected to the corresponding connecting pipe through a rotary joint. The submersible sampling mechanism, housed within a positioning cylinder, comprises: The upper baffle is located above the positioning cylinder. A lifting plate is installed above it. The lifting plate is connected to the upper baffle through a bearing. The lifting plate is connected to the connecting rope. Several upper pressure seats are evenly distributed on the outer side of its lower surface. An upper pressure groove is opened on the lower surface of the upper pressure seat. A sealing soft gasket is installed inside. An air groove is opened at the center of the upper surface of the upper pressure groove. The lower baffle is located below the upper baffle. Electric push rods are installed at the four corners of its upper surface. The telescopic ends of the electric push rods are fixedly connected to the upper baffle. Several pressure seats are installed on the outer end of its upper surface and are evenly distributed. The upper surface of the pressure seats has an installation groove. The sampling bottle is located between the upper and lower pressure seats, with its lower end threaded to the mounting groove and its upper end inserted into the upper pressure groove. A tilting tube is installed at its upper end, and a tube cap is threaded onto the tilting tube. A one-way sampling seat is installed on its side surface, with sampling holes evenly opened on it, and a silicone seat is installed inside it. The sampling adjustment mechanism is located below the upper baffle. An inflatable submersion mechanism is located below the lower baffle. The sampling adjustment mechanism includes an adjustment box installed on the lower surface of the upper baffle, a circular gas box inside the adjustment box, an inflation / deflation pipe installed above the circular gas box with its upper end extending out of the upper baffle and connected to the other end of the gas supply pipe via a rotary joint, an annular baffle installed below the outer surface of the circular gas box, several connecting gas pipes on the annular baffle corresponding to the upper pressure seat, one end of which is connected to the circular gas box and the other end is connected to the upper pressure seat at the corresponding position and communicates with the gas groove, a pressure-resistant silicone hose on the connecting gas pipes and placed on the annular baffle, and a squeezing mechanism on the pressure-resistant silicone hose.

2. The water quality testing sampling base station according to claim 1, characterized in that, A positioning cylinder is installed at the center of the base station body, a floating airbag is set below it, and a ring-shaped battery box is set on its upper surface. A storage battery is set inside the ring-shaped battery box, and solar cell modules are set on the ring-shaped battery box, which are fixedly connected to the base station body.

3. The water quality testing sampling base station according to claim 2, characterized in that, The extrusion mechanism includes a pressure tube seat located above the pressure-resistant silicone hose, with a conical pressure block on its lower surface that contacts the pressure-resistant silicone hose; a U-shaped adjusting rod located below an annular baffle, with both ends sliding through the annular baffle and connected to the pressure tube seat; compression springs fitted at both ends of the U-shaped adjusting rod, located between the pressure tube seat and the annular baffle; an adjusting roller located on one side of the lower end of the U-shaped adjusting rod; an annular adjusting baffle located below the adjusting box, with its lower outer surface in sliding contact with the adjusting roller and an adjusting groove on one side of its lower outer surface; and a stepper motor located inside the lower part of the adjusting box, with its rotating end connected to the annular adjusting baffle via a bevel gear and a gear plate.

4. A water quality testing sampling base station according to claim 3, characterized in that, The inflatable diving mechanism includes a floating box located below the lower baffle, an adjusting air pipe located at the center of the upper surface of the floating box with its upper end connected to a circular air box, an electromagnetic air valve installed on the pipe and located inside the adjusting box, which is connected to the annular adjusting baffle via a bearing, a connecting rod located on the outer side of the upper surface of the floating box with its upper end connected to the adjusting box, an external pipe located at the center of the lower surface of the floating box, and a counterweight located at the center of the lower surface of the floating box, which is fitted onto the external pipe.

5. A water quality testing sampling base station according to claim 3, characterized in that, After the stepper motor completes one cycle, the annular adjusting baffle rotates at a certain angle, and the rotation angle is half of the included angle between two adjacent adjusting rollers.

6. A water quality testing sampling base station according to claim 3, characterized in that, When the adjusting roller contacts the lower surface of the annular adjusting baffle, the conical pressure block presses the pressure-resistant silicone hose, causing the pressure-resistant silicone hose to be in a disconnected state.

7. A water quality testing sampling base station according to claim 3, characterized in that, After the adjusting roller slides into the adjusting groove, the adjusting roller rises using the elasticity of the compression spring, causing the pressure tube seat to drive the conical pressure block to rise, thus putting the pressure-resistant silicone hose into a connected state.

8. A dedicated sampling base station for water quality testing according to claim 1, characterized in that, When the sampling bottle is submerged in water, the internal air pressure is greater than the water pressure at the sampling location.

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