An automatic sampling and detection device for water quality in nearshore waters

Abstract

The present invention discloses an automatic sampling and testing device for water quality in nearshore waters, which belongs to the field of water quality testing technology. A positioning column is fixedly provided on the outer wall of the locking chamber, and multiple groups of plug-ins are fixedly provided on the outer side of the rotating shaft; a locking seat that quickly cooperates with the driving mechanism is provided on the floating body, and a positioning cavity is provided on the inner wall of the positioning inner groove; a sampling tube is installed on the lifting plate, and a partition is also provided in the middle of the sampling mechanism, and multiple groups of extrusion plugs that can open the sampling tube are movably installed on the partition; a rotating plate that fits with the partition is fixedly provided at the bottom of the gear ring, and a detection cylinder is provided on the top of the rotating plate, and a hose with adjustable length is connected to the outer wall of the detection cylinder. According to the present invention, when the rotating plate rotates between adjacent extrusion plugs, the water remaining in the hose returns to the sea through the overflow pipe. When the rotating plate moves to the top of the extrusion plug, the push rod moves downward and squeezes the sealing plug. At this time, the seawater sample in the detection cylinder enters the sampling tube. This design improves the detection effect and sampling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, in particular to an automatic sampling and detection device for water quality in nearshore waters. Background Art

[0002] With the development of technology and the impact of human activities, the water environment has deteriorated, with an increasing number of pollutants flowing into lakes and oceans. Consequently, humans have increased their attention to water bodies, especially the ocean. Water quality detectors are required for water quality testing. Strengthening water quality testing is a key part of water environment management and is of great significance to the monitoring and protection of the marine ecological environment. It can provide reliable data support for marine scientific research, such as suspended matter, dissolved oxygen, pH, conductivity, organic matter composition, microbial composition, and other data.

[0003] Chinese patent application publication number CN118776975A discloses a sampling device for seawater quality testing, comprising a hull, a float, a sampling mechanism, and a sample container storage mechanism. The float is disposed at the bottom of the hull, and the sampling mechanism and sample container storage mechanism are both disposed within the hull. The hull and float are provided with sampling ports extending through the bottom of the hull and the float. The sampling mechanism includes a sampling motor, a gear, a rack, and a clamp, and the sample container storage mechanism includes a rotating motor, a turntable, and multiple sample containers. This patent application utilizes a sampling mechanism to drive a sample container into the water for sampling. After sampling is completed, the sample container is removed from the water and transported to a sample container storage mechanism, which is used to store empty sample containers and sample containers containing seawater samples. The hull structure is compact and lightweight, allowing it to enter waters inaccessible to large ships for sampling. Multiple sampling operations can be completed in a single voyage, thereby improving sampling efficiency.

[0004] However, the detection efficiency and degree of freedom of the water quality detection sampling device disclosed above are general. When in use, the sampling equipment cannot be placed in different working sea areas according to actual needs. Moreover, it is not possible to perform multiple detections and sampling of seawater at different depths during sampling. There is a lack of a detachable sampling mechanism. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic sampling and detection device for water quality in nearshore waters in order to solve the problems of the water quality detection and sampling devices in the prior art, such as the general detection efficiency and degree of freedom, the inability to place the sampling equipment in different working sea areas according to actual needs during use, the inability to perform multiple detection and sampling of seawater at different depths during sampling, and the lack of a detachable sampling mechanism.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: an automatic sampling and detection device for water quality in nearshore waters, comprising a driving mechanism and a sampling mechanism, wherein a plurality of locking chambers are provided on the outer wall of the driving mechanism, a plurality of positioning columns are fixedly provided on the outer wall of the locking chamber, a rotating shaft is rotatably provided in the middle of the positioning column, and a plurality of plug-ins are fixedly provided on the outer side of the rotating shaft; a floating body is provided on the outer wall of the sampling mechanism, a locking seat that quickly cooperates with the driving mechanism is provided on the floating body, a positioning outer groove that cooperates with the locking chamber is provided inside the locking seat, and a positioning outer groove that cooperates with the positioning column is provided on the inner wall of the positioning outer groove. a cooperating positioning inner groove; a plurality of positioning cavities cooperating with the plug-in are provided on the inner wall of the positioning inner groove; a lifting plate is movably provided at the bottom of the sampling mechanism, and a plurality of sampling tubes are installed on the lifting plate, and a partition is also fixedly provided in the middle of the sampling mechanism, and a plurality of extrusion plugs that can open the sampling tubes are movably installed on the partition; a gear ring is also movably provided on the inner wall of the sampling mechanism, and a rotating plate that fits the partition is fixedly provided at the bottom of the gear ring, and a detection cylinder is provided on the top of the rotating plate, and a hose with adjustable length is connected to the outer wall of the detection cylinder, and a sampling pump is connected to the end of the hose.

[0007] As a further solution of the present invention: a rotating hole is provided in the middle of the positioning column, the rotating shaft is rotatably arranged in the rotating hole, a rotating fan is provided on the outer side of the rotating shaft, and the plug-in is fixedly arranged on the outer wall of the rotating fan; the plug-in includes a vertical portion and an arc-shaped portion, and a locking cavity cooperating with the arc-shaped portion is provided on the clockwise inner wall of the positioning cavity.

[0008] As a further solution of the present invention: multiple groups of telescopic cavities are opened on the outer wall of the positioning column, and locking blocks are movably connected in the telescopic cavities. The inner wall of the locking block is connected to multiple groups of locking springs, and an inclined surface is provided on the outer wall of the locking block close to the vertical part; multiple groups of first magnetic plates are also installed on the outer wall of the positioning column, and multiple groups of second magnetic plates cooperating with the first magnetic plates are installed on the inner wall of the positioning inner groove.

[0009] As a further solution of the present invention: a linkage gear is installed on the inner side of the rotating shaft, a tooth plate meshing with the linkage gear is movably installed on the inner wall of the locking bin, and a locking motor located in the locking bin is also installed on the outer wall of the driving mechanism, and a driving gear meshing with the tooth plate is installed at the output end of the locking motor.

[0010] As a further solution of the present invention: a slide rail is fixedly provided on the bottom of the tooth plate, and a slide groove cooperating with the slide rail is opened on the inner wall of the locking chamber; and a plurality of propellers are provided on the bottom of the driving mechanism.

[0011] As a further solution of the present invention: a mounting ring is provided on the inner wall of the sampling mechanism, multiple groups of cylinders are installed on the bottom of the mounting ring, the lifting plate is fixedly provided at the bottom of the cylinder, and multiple groups of mounting seats cooperating with the sampling tube are provided on the top of the lifting plate; a through hole is opened in the middle of the partition, and a sealed cylinder cooperating with the through hole is provided in the middle of the lifting plate.

[0012] As a further solution of the present invention: the top of the sampling tube is provided with an inward-facing liquid inlet nozzle, and a sealing plug is movably installed at the bottom of the liquid inlet nozzle; multiple groups of extrusion chambers are provided on the partition plate, and a liquid discharge port 1 cooperating with the liquid inlet nozzle is provided at the bottom of the extrusion chamber, and the extrusion plug is movably arranged in the extrusion chamber; a liquid discharge port 2 cooperating with the liquid discharge port 1 is provided in the middle of the extrusion plug, and a downward-facing push rod is fixedly provided on the inner wall of the liquid discharge port 2.

[0013] As a further solution of the present invention: a drainage tube coaxial with the sampling tube is fixedly provided at the bottom of the detection cylinder, an overflow tube is connected to the outer wall of the drainage tube, a first one-way valve is provided in the middle of the drainage tube, and a second one-way valve is provided in the middle of the overflow tube.

[0014] As a further solution of the present invention: a liquid inlet pipe is fixedly provided on the outer wall of the detection cylinder, a support frame is fixedly provided on the rotating plate, a roller with a hollow structure is rotatably provided on the support frame, the hose is wound around the roller, the liquid outlet end of the hose is connected with the interior of the roller through a connecting part, an interface part is installed on one side of the roller, and the roller is movably connected to the liquid inlet pipe through the interface part; a winding motor for driving the roller to rotate is also installed on the outer wall of the support frame.

[0015] As a further solution of the present invention: a reset groove is provided on the inner wall of the bottom of the liquid inlet nozzle, the top of the sealing plug is connected to multiple groups of reset springs 1 located in the reset groove, the top of the sealing plug is provided with a frustum, and the bottom of the extrusion plug is connected to multiple groups of reset springs 2; a drive motor is also installed on the inner wall of the sampling mechanism, and the output end of the drive motor is installed with a drive gear meshing with the ring gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can perform multiple tests at different depths in different sea areas through a plurality of detachable sampling mechanisms. Before the operation, the sampling mechanism is transported to the predetermined area by the driving mechanism, and then the gear plate is driven to slide by the locking motor. Under the rotation of the linkage gear, the plug-in disengages from the locking cavity and squeezes the inclined surface on the locking block. At this time, the locking block retracts into the telescopic cavity and unlocks the vertical portion and the inner wall of the positioning cavity. When the sampling mechanism completes its work and needs to be recovered, the driving mechanism returns to the vicinity of the sampling mechanism through the GPS mechanism, and then quickly locks it through the first magnetic plate and the second magnetic plate. At this time, the positioning column is just inserted into the positioning inner groove, and the plug-in is just inserted into the positioning cavity. Under the rotation of the linkage gear, the arc-shaped portion is inserted into the locking cavity. At this time, the locking block automatically pops out and locks again between the vertical portion and the inner wall of the positioning cavity. This design improves the freedom and practicality of the automatic sampling and detection device for water quality in nearshore waters.

[0018] 2. The present invention can greatly reduce sampling errors through the coordination of the gear ring and the rotating plate. When the rotating plate rotates between adjacent extrusion plugs, the first one-way valve is closed and the second one-way valve is opened. At this time, the water remaining in the hose from the previous sample is discharged back into the sea through the overflow pipe. After the water is completely discharged, the first and second one-way valves are closed at the same time. At this time, the seawater is temporarily stored in the detection cylinder and detected by the sensor inside it. When the detection is completed, the rotating plate moves to the top of the extrusion plug. At this time, the push rod moves downward and squeezes the sealing plug. Then, the first one-way valve is opened and the second one-way valve is closed. At this time, the seawater sample in the detection cylinder enters the sampling tube through the drainage pipe, drainage port 2, drainage port 1 and the liquid inlet nozzle. When the next sampling is carried out and the rotating plate is separated from the extrusion plug, the sealing plug automatically resets upward and seals the liquid inlet nozzle. This design improves the detection effect and sampling efficiency of the automatic sampling and detection device for water quality in nearshore waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 It is the three-dimensional structure of the driving mechanism in the present invention Figure 1 ;

[0022] Figure 3 It is the three-dimensional structure of the locking chamber in the present invention Figure 1 ;

[0023] Figure 4 It is the three-dimensional structure of the locking chamber in the present invention Figure 2 ;

[0024] Figure 5 It is the internal three-dimensional structure of the locking chamber in the present invention Figure 1 ;

[0025] Figure 6 It is the internal three-dimensional structure of the locking chamber in the present invention Figure 2 ;

[0026] Figure 7 It is the three-dimensional structure of the driving mechanism in the present invention Figure 2 ;

[0027] Figure 8 It is a three-dimensional structural diagram of the sampling mechanism of the present invention;

[0028] Figure 9 is a cross-sectional view of the sampling mechanism of the present invention;

[0029] Figure 10 yes Figure 9 A magnified view of the structure at point A;

[0030] Figure 11 It is the internal three-dimensional structure of the sampling mechanism in the present invention Figure 1 ;

[0031] Figure 12 It is the internal three-dimensional structure of the sampling mechanism in the present invention Figure 2 ;

[0032] Figure 13 It is a three-dimensional structural diagram of the gear ring in the present invention.

[0033] Description of reference numerals:

[0034] 1. Driving mechanism; 101. Propeller; 102. Locking chamber; 103. Positioning column; 104. Rotating hole; 105. Rotating shaft; 106. Rotating fan; 107. Plug-in unit; 108. Vertical portion; 109. Arc-shaped portion; 110. Linking gear; 111. Tooth plate; 112. Sliding groove; 113. Slide rail; 114. Locking motor; 115. Driving gear; 116. Telescopic chamber; 117. Locking block; 118. Locking spring; 119. Inclined surface; 120. First magnetic plate;

[0035] 2. Sampling mechanism; 201. Float; 202. Locking seat; 203. Positioning outer groove; 204. Positioning inner groove; 205. Positioning cavity; 206. Locking cavity; 207. Second magnetic plate; 208. Mounting ring; 209. Cylinder; 210. Lifting plate; 211. Mounting seat; 212. Partition; 213. Sampling tube; 214. Liquid inlet nozzle; 215. Sealing plug; 216. Reset groove; 217. Reset spring 1; 218. Cone; 219. Extrusion cavity; 220. Liquid discharge port 1; 221. Extrusion plug; 22 2. Return spring 2; 223. Drain port 2; 224. Push rod; 225. Through hole; 226. Sealed cylinder; 227. Ring gear; 228. Rotating plate; 229. Driving motor; 230. Driving gear; 231. Detection cylinder; 232. Drain pipe; 233. Overflow pipe; 234. First one-way valve; 235. Second one-way valve; 236. Liquid inlet pipe; 237. Support frame; 238. Roller; 239. Winding motor; 240. Hose; 241. Connecting part; 242. Sampling pump; 243. Interface parts. DETAILED DESCRIPTION

[0036] The following will be combined with the Figures 1 to 13 The technical solutions of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention provides an automatic sampling and detection device for water quality in coastal waters through improvement. Figures 1-13As shown, it includes a driving mechanism 1 and a sampling mechanism 2. The outer wall of the driving mechanism 1 is provided with multiple sets of locking chambers 102, and the outer wall of the locking chamber 102 is fixedly provided with multiple sets of positioning columns 103. The middle part of the positioning column 103 is rotatably provided with a rotating shaft 105, and the outer side of the rotating shaft 105 is fixedly provided with multiple sets of plug-ins 107; a floating body 201 is provided on the outer wall of the sampling mechanism 2, and a locking seat 202 that quickly cooperates with the driving mechanism 1 is provided on the floating body 201. The interior of the locking seat 202 is provided with a positioning outer groove 203 that cooperates with the locking chamber 102, and the inner wall of the positioning outer groove 203 is provided with a positioning inner groove 204 that cooperates with the positioning column 103; the inner wall of the positioning inner groove 204 is provided with a positioning inner groove 204. There are multiple groups of positioning cavities 205 that cooperate with the plug-in 107; a lifting plate 210 is movably provided at the bottom of the sampling mechanism 2, and multiple groups of sampling tubes 213 are installed on the lifting plate 210. A partition 212 is also fixedly provided in the middle of the sampling mechanism 2, and multiple groups of squeezing plugs 221 that can open the sampling tubes 213 are movably installed on the partition 212; a gear ring 227 is also movably installed on the inner wall of the sampling mechanism 2, and a rotating plate 228 that fits with the partition 212 is fixedly provided at the bottom of the gear ring 227. A detection cylinder 231 is provided on the top of the rotating plate 228. The outer wall of the detection cylinder 231 is connected to a hose 240 with an adjustable length, and the end of the hose 240 is connected to a sampling pump 242.

[0038] In this embodiment, the automatic sampling and testing device for nearshore water quality is primarily comprised of two components: a drive mechanism 1 and a sampling mechanism 2. During use, the drive mechanism 1 first transports multiple sets of sampling mechanisms 2 to a predetermined location. Upon reaching the predetermined location, driven by the locking motor 114 and the linkage gear 110, the plug 107 rotates counterclockwise to disengage the locking chamber 206 and squeeze the inclined surface 119 on the locking block 117. The locking block 117 then retracts into the telescopic chamber 116 and releases the lock between the vertical portion 108 and the inner wall of the positioning chamber 205. The drive motor 229 then drives the rotating plate 228 to rotate between adjacent extrusion plugs 221, closing the first one-way valve 234 and opening the second one-way valve 235. The water remaining in the hose 240 from the previous sampling is then discharged back into the sea through the overflow pipe 233. After the water is completely drained, the first and second check valves 234 and 235 are simultaneously closed. The seawater is now temporarily stored in the detection cylinder 231 and detected by the sensor therein. When the drive motor 229 drives the rotating plate 228 to squeeze the extrusion plug 221, the first check valve 234 is opened and the second check valve 235 is closed. The seawater sample in the detection cylinder 231 then enters the sampling tube 213 through the drainage pipe 232, the second drainage port 223, the first drainage port 220, and the inlet nozzle 214. When the sampling mechanism 2 completes its operation, the drive mechanism 1 returns to the vicinity of the sampling mechanism 2 via the GPS mechanism. The first and second magnetic plates 120 and 207 quickly lock the sample. Under the rotation of the linkage gear 110, the arcuate portion 109 rotates clockwise and inserts into the locking cavity 206. The locking block 117 then automatically pops out and relocks the vertical portion 108 and the inner wall of the positioning cavity 205.

[0039] See attached Figure 3 -Attached Figure 4 and attached Figure 8 -Attached Figure 9 A rotating hole 104 is provided in the middle of the positioning column 103, and a rotating shaft 105 is rotatably arranged in the rotating hole 104. A rotating fan 106 is provided on the outside of the rotating shaft 105, and a plug-in 107 is fixedly arranged on the outer wall of the rotating fan 106; the plug-in 107 includes a vertical portion 108 and an arc-shaped portion 109, and a locking cavity 206 that cooperates with the arc-shaped portion 109 is provided on the clockwise inner wall of the positioning cavity 205.

[0040] In this embodiment, before operation, the toothed plate 111 is driven to slide by the locking motor 114. Under the rotation of the linkage gear 110, the plug 107 rotates counterclockwise to disengage from the locking cavity 206 and presses the inclined surface 119 on the locking block 117. At this time, the locking block 117 retracts into the telescopic cavity 116 and releases the lock between the vertical portion 108 and the inner wall of the positioning cavity 205. When the sampling mechanism 2 completes its operation, it is quickly locked by the first magnetic plate 120 and the second magnetic plate 207. Under the rotation of the linkage gear 110, the arcuate portion 109 rotates clockwise and inserts into the locking cavity 206. At this time, the locking block 117 automatically pops out and relocks the vertical portion 108 and the inner wall of the positioning cavity 205.

[0041] See attached Figure 3 -Attached Figure 4 and attached Figure 8 -Attached Figure 9 , multiple groups of telescopic cavities 116 are provided on the outer wall of the positioning column 103, and a locking block 117 is movably connected in the telescopic cavity 116. The inner wall of the locking block 117 is connected to multiple groups of locking springs 118, and an inclined surface 119 is provided on the outer wall of the locking block 117 near the vertical portion 108; multiple groups of first magnetic plates 120 are also installed on the outer wall of the positioning column 103, and multiple groups of second magnetic plates 207 cooperating with the first magnetic plates 120 are installed on the inner wall of the positioning inner groove 204.

[0042] In this embodiment: when the driving mechanism 1 approaches the locking seat 202 on the sampling mechanism 2, the locking chamber 102 is quickly inserted into the positioning outer groove 203 with the cooperation of the second magnetic plate 207 in cooperation with the first magnetic plate 120, and the positioning column 103 is also inserted into the positioning inner groove 204. At this time, the plug-in 107 just falls into the positioning cavity 205.

[0043] See attached Figure 5 -Attached Figure 7 A linkage gear 110 is installed on the inner side of the rotating shaft 105, and a tooth plate 111 engaged with the linkage gear 110 is movably installed on the inner wall of the locking chamber 102. A locking motor 114 located in the locking chamber 102 is also installed on the outer wall of the driving mechanism 1, and a driving gear 115 engaged with the tooth plate 111 is installed at the output end of the locking motor 114.

[0044] In this embodiment, in order to automatically drive the tooth plate 111 to slide and drive the linkage gear 110 and the plug-in 107 to rotate, thereby realizing the locking and unlocking of the sampling mechanism 2 by the driving mechanism 1, a locking motor 114 structure is designed.

[0045] See attached Figure 1 -Attached Figure 2 and attached Figure 5 -Attached Figure 6A slide rail 113 is fixedly provided at the bottom of the tooth plate 111 , and a slide groove 112 cooperating with the slide rail 113 is provided on the inner wall of the locking chamber 102 ; a plurality of propellers 101 are provided at the bottom of the driving mechanism 1 .

[0046] In this embodiment, in order to install the tooth plate 111 and ensure its stability during sliding, a sliding rail 113 and a sliding groove 112 structure that cooperate with each other are designed. In order to drive the driving mechanism 1 to move on the sea surface and transport the sampling mechanism 2 to the predetermined area, a propeller 101 structure is designed.

[0047] See attached Figure 9 and attached Figure 11 A mounting ring 208 is provided on the inner wall of the sampling mechanism 2, and multiple groups of cylinders 209 are installed at the bottom of the mounting ring 208. A lifting plate 210 is fixedly set at the bottom of the cylinder 209, and multiple groups of mounting seats 211 that cooperate with the sampling tube 213 are provided on the top of the lifting plate 210; a through hole 225 is opened in the middle of the partition 212, and a sealed cylinder 226 that cooperates with the through hole 225 is provided in the middle of the lifting plate 210.

[0048] In this embodiment, to facilitate disassembly, assembly, and replacement of the sampling tube 213 after sampling, a movable lifting plate 210 is provided. When the bottom of the lifting plate 210 is flush with the bottom of the sampling mechanism 2, the top of the sampling tube 213 abuts the bottom of the partition 212. To prevent seawater from corroding the sampling tube 213 and the interior of the sampling mechanism 2, a sealed cylinder 226 is provided. When the bottom of the lifting plate 210 is flush with the bottom of the sampling mechanism 2, the top of the sealed cylinder 226 abuts the bottom of the partition 212.

[0049] See attached Figure 9 -Attached Figure 13 The top of the sampling tube 213 is provided with an inward-facing liquid inlet nozzle 214, and a sealing plug 215 is movably installed at the bottom of the liquid inlet nozzle 214; multiple groups of extrusion chambers 219 are provided on the partition 212, and a liquid discharge port 220 cooperating with the liquid inlet nozzle 214 is provided at the bottom of the extrusion chamber 219, and an extrusion plug 221 is movably arranged in the extrusion chamber 219; a liquid discharge port 223 cooperating with the liquid discharge port 1 220 is provided in the middle of the extrusion plug 221, and a downward-facing push rod 224 is fixedly provided on the inner wall of the liquid discharge port 223.

[0050] In this embodiment, after the test is completed, the rotating plate 228 moves to the top of the extrusion plug 221. At this time, the push rod 224 moves downward and squeezes the sealing plug 215. Then, the first one-way valve 234 is opened and the second one-way valve 235 is closed. At this time, the seawater sample in the detection cylinder 231 enters the sampling tube 213 through the drainage pipe 232, the second drainage port 223, the first drainage port 220 and the liquid inlet nozzle 214.

[0051] See attached Figure 11 -Attached Figure 13 A drainage pipe 232 coaxial with the sampling tube 213 is fixedly provided at the bottom of the detection cylinder 231, and an overflow pipe 233 is connected to the outer wall of the drainage pipe 232. A first one-way valve 234 is provided in the middle of the drainage pipe 232, and a second one-way valve 235 is provided in the middle of the overflow pipe 233.

[0052] In this embodiment, when rotating plate 228 rotates between adjacent extrusion plugs 221, first one-way valve 234 closes and second one-way valve 235 opens. The remaining sampled water in hose 240 is then discharged back into the sea through overflow pipe 233. Once the water has been completely discharged, both first and second one-way valves 234 and 235 are closed simultaneously. The seawater is then temporarily stored in detection cylinder 231 and detected by the sensor within.

[0053] See attached Figure 11 -Attached Figure 13 A liquid inlet pipe 236 is fixedly provided on the outer wall of the detection cylinder 231, and a support frame 237 is fixedly provided on the rotating plate 228. A roller 238 with a hollow structure is rotatably provided on the support frame 237. The hose 240 is wound around the roller 238. The liquid outlet end of the hose 240 is connected with the interior of the roller 238 through the connecting part 241. An interface part 243 is installed on one side of the roller 238, and the roller 238 is movably connected to the liquid inlet pipe 236 through the interface part 243; a winding motor 239 for driving the roller 238 to rotate is also installed on the outer wall of the support frame 237.

[0054] In this embodiment, when the reel motor 239 drives the roller 238 to rotate and releases the hose 240, the roller 238 is movably connected to the liquid inlet pipe 236 under the action of the interface 243. At this time, deep seawater enters the interior of the detection cylinder 231 through the sampling pump 242 and the hose 240. When the reel motor 239 drives the roller 238 to rotate and tightens the hose 240, the shallow seawater enters the interior of the detection cylinder 231 through the sampling pump 242 and the hose 240.

[0055] See attached Figure 9 -Attached Figure 12 A reset groove 216 is provided on the inner wall of the bottom of the liquid inlet nozzle 214, and the top of the sealing plug 215 is connected to multiple groups of reset springs 217 located in the reset groove 216. A frustum 218 is provided on the top of the sealing plug 215, and multiple groups of reset springs 222 are connected to the bottom of the extrusion plug 221; a driving motor 229 is also installed on the inner wall of the sampling mechanism 2, and a driving gear 230 meshing with the ring gear 227 is installed at the output end of the driving motor 229.

[0056] In this embodiment, when rotating plate 228 disengages squeeze plug 221, squeeze plug 221 automatically pops upward and returns to its original position under the action of return spring 222. At this point, ejector pin 224 moves upward and disengages sealing plug 215. Sealing plug 215 automatically returns upward under the action of return spring 1 217, sealing liquid inlet nozzle 214 and thereby sealing the seawater sample within sampling tube 213.

[0057] The present invention operates as follows: When in use, the device first transports multiple sampling mechanisms 2 to a predetermined location via the drive mechanism 1. Upon reaching the predetermined location, the locking motor 114 and the linkage gear 110 drive the plug 107 counterclockwise, disengaging the locking chamber 206 and pressing against the inclined surface 119 on the locking block 117. This causes the locking block 117 to retract into the telescopic chamber 116 and release the lock between the vertical portion 108 and the inner wall of the positioning chamber 205. The drive motor 229 then drives the rotating plate 228 to rotate between adjacent compression plugs 221, closing the first one-way valve 234 and opening the second one-way valve 235. The remaining water sampled in the hose 240 is then discharged back into the sea through the overflow pipe 233. Once the water has been completely drained, the first and second one-way valves 234 and 235 are simultaneously closed. The seawater is then temporarily stored in the detection cylinder 231 and detected by the sensor within it. When the drive motor 229 drives the rotating plate 228 to squeeze the extrusion plug 221, the first one-way valve 234 is opened and the second one-way valve 235 is closed. At this time, the seawater sample in the detection cylinder 231 enters the sampling tube 213 through the drainage pipe 232, the second drainage port 223, the first drainage port 220, and the liquid inlet nozzle 214. When the sampling mechanism 2 completes its operation, the drive mechanism 1 returns to the vicinity of the sampling mechanism 2 through the GPS mechanism. The first magnetic plate 120 and the second magnetic plate 207 are quickly locked. Under the rotation of the linkage gear 110, the arcuate portion 109 rotates clockwise and inserts into the locking cavity 206. At this time, the locking block 117 automatically pops out and re-locks the vertical portion 108 and the inner wall of the positioning cavity 205.

[0058] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. An automatic sampling and detection device for water quality in nearshore waters, comprising a driving mechanism (1) and a sampling mechanism (2), characterized in that: A plurality of locking chambers (102) are provided on the outer wall of the driving mechanism (1), a plurality of positioning columns (103) are fixedly provided on the outer wall of the locking chamber (102), a rotating shaft (105) is rotatably provided in the middle of the positioning column (103), and a plurality of plug-in units (107) are fixedly provided on the outer side of the rotating shaft (105); A float (201) is provided on the outer wall of the sampling mechanism (2), a locking seat (202) that quickly cooperates with the driving mechanism (1) is provided on the float (201), a positioning outer groove (203) that cooperates with the locking chamber (102) is provided inside the locking seat (202), and a positioning inner groove (204) that cooperates with the positioning column (103) is provided on the inner wall of the positioning outer groove (203); a plurality of positioning cavities (205) that cooperate with the plug-in (107) are provided on the inner wall of the positioning inner groove (204); a plurality of first magnetic plates (120) are also installed on the outer wall of the positioning column (103), and a plurality of second magnetic plates (207) that cooperate with the first magnetic plates (120) are installed on the inner wall of the positioning inner groove (204); A lifting plate (210) is movably provided at the bottom of the sampling mechanism (2), and a plurality of sampling tubes (213) are installed on the lifting plate (210). A partition (212) is fixedly provided in the middle of the sampling mechanism (2), and a plurality of extrusion plugs (221) capable of opening the sampling tubes (213) are movably provided on the partition (212). A gear ring (227) is movably provided on the inner wall of the sampling mechanism (2), and a rotating plate (228) that is in contact with the partition (212) is fixedly provided at the bottom of the gear ring (227). A detection cylinder (231) is provided on the top of the rotating plate (228). A hose (240) with an adjustable length is connected to the outer wall of the detection cylinder (231), and a sampling pump (242) is connected to the end of the hose (240). A discharge pipe (232) coaxial with the sampling tube (213) is fixedly provided at the bottom of the detection cylinder (231). Each of the sampling mechanisms (2) can independently perform multiple detection and sampling at different depths in different sea areas.

2. The automatic sampling and detection device for nearshore water quality according to claim 1, characterized in that: A rotating hole (104) is provided in the middle of the positioning column (103), the rotating shaft (105) is rotatably arranged in the rotating hole (104), a rotating fan (106) is provided on the outer side of the rotating shaft (105), and the plug-in (107) is fixedly provided on the outer wall of the rotating fan (106); the plug-in (107) includes a vertical portion (108) and an arc-shaped portion (109), and a locking cavity (206) that cooperates with the arc-shaped portion (109) is provided on the clockwise inner wall of the positioning cavity (205).

3. The automatic sampling and detection device for nearshore water quality according to claim 2, characterized in that: The outer wall of the positioning column (103) is provided with a plurality of telescopic cavities (116), the telescopic cavities (116) are movably connected with locking blocks (117), the inner wall of the locking blocks (117) are connected with a plurality of locking springs (118), and the outer wall of the locking blocks (117) close to the vertical portion (108) is provided with an inclined surface (119).

4. The automatic sampling and detection device for nearshore water quality according to claim 1, characterized in that: A linkage gear (110) is installed on the inner side of the rotating shaft (105), a tooth plate (111) meshing with the linkage gear (110) is movably installed on the inner wall of the locking chamber (102), and a locking motor (114) located in the locking chamber (102) is also installed on the outer wall of the driving mechanism (1), and a driving gear (115) meshing with the tooth plate (111) is installed at the output end of the locking motor (114).

5. The automatic sampling and testing device for nearshore water quality according to claim 4 is characterized in that: A slide rail (113) is fixedly provided at the bottom of the tooth plate (111), and a slide groove (112) cooperating with the slide rail (113) is provided on the inner wall of the locking chamber (102); and a plurality of propellers (101) are provided at the bottom of the driving mechanism (1).

6. The automatic sampling and detection device for nearshore water quality according to any one of claims 1 to 5, characterized in that: A mounting ring (208) is provided on the inner wall of the sampling mechanism (2), a plurality of cylinders (209) are installed at the bottom of the mounting ring (208), the lifting plate (210) is fixedly provided at the bottom of the cylinder (209), and a plurality of mounting seats (211) cooperating with the sampling tube (213) are provided on the top of the lifting plate (210); a through hole (225) is provided in the middle of the partition (212), and a sealed cylinder (226) cooperating with the through hole (225) is provided in the middle of the lifting plate (210).

7. The automatic sampling and testing device for nearshore water quality according to claim 1, characterized in that: The top of the sampling tube (213) is provided with an inward-facing liquid inlet nozzle (214), and a sealing plug (215) is movably installed at the bottom of the liquid inlet nozzle (214); a plurality of extrusion chambers (219) are provided on the partition (212), and a liquid discharge port 1 (220) cooperating with the liquid inlet nozzle (214) is provided at the bottom of the extrusion chamber (219), and the extrusion plug (221) is movably arranged in the extrusion chamber (219); a liquid discharge port 2 (223) cooperating with the liquid discharge port 1 (220) is provided in the middle of the extrusion plug (221), and a downward-facing push rod (224) is fixedly provided on the inner wall of the liquid discharge port 2 (223).

8. The automatic sampling and testing device for nearshore water quality according to any one of claims 1 to 5, characterized in that: An overflow pipe (233) is connected to the outer wall of the drain pipe (232), a first one-way valve (234) is provided in the middle of the drain pipe (232), and a second one-way valve (235) is provided in the middle of the overflow pipe (233).

9. The automatic sampling and detection device for nearshore water quality according to any one of claims 1 to 5, characterized in that: A liquid inlet pipe (236) is fixedly provided on the outer wall of the detection cylinder (231), and a support frame (237) is fixedly provided on the rotating plate (228). A roller shaft (238) having a hollow structure is rotatably provided on the support frame (237). The rubber hose (240) is wound around the roller shaft (238). The liquid outlet end of the rubber hose (240) is connected to the interior of the roller shaft (238) through a connecting portion (241). An interface component (243) is installed on one side of the roller shaft (238), and the roller shaft (238) is movably connected to the liquid inlet pipe (236) through the interface component (243). A winding motor (239) for driving the roller shaft (238) to rotate is also installed on the outer wall of the support frame (237).

10. The automatic sampling and testing device for coastal water quality according to claim 7, characterized in that: A reset groove (216) is provided on the inner wall of the bottom of the liquid inlet nozzle (214); the top of the sealing plug (215) is connected to multiple groups of reset springs (217) located in the reset groove (216); the top of the sealing plug (215) is provided with a frustum (218); the bottom of the extrusion plug (221) is connected to multiple groups of reset springs (222); a driving motor (229) is also installed on the inner wall of the sampling mechanism (2); the output end of the driving motor (229) is installed with a driving gear (230) meshing with the gear ring (227).

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