Automatic sampling and detecting device for water quality in offshore area

Abstract

The invention discloses an automatic sampling and detecting device for water quality in an offshore area, and belongs to the technical field of water quality detection. A positioning column is fixedly arranged on the outer wall of a locking bin, and a plurality of groups of inserts are fixedly arranged on the outer side of a rotating shaft; the floating body is provided with a locking seat which is quickly matched with the driving mechanism, and a positioning cavity is formed in the inner wall of the positioning inner groove; a sampling pipe is installed on the lifting plate, a partition plate is further arranged in the middle of the sampling mechanism, and a plurality of extrusion plugs capable of opening the sampling pipe are movably installed on the partition plate; a rotating plate attached to the partition plate is fixedly arranged at the bottom of the gear ring, a detection cylinder is arranged at the top of the rotating plate, and a rubber pipe with the adjustable length is connected to the outer wall of the detection cylinder. When the rotating plate rotates to the position between the adjacent extrusion plugs, water remaining in the rubber pipe returns to the sea again through the overflow pipe. When the rotating plate moves to the position above the extrusion plug, the ejector rod moves downwards and extrudes the sealing plug, at the moment, a seawater sample in the detection cylinder enters the sampling pipe, and the design improves the detection effect and the sampling efficiency.

Description

Technical Field

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

[0002] With the development of technology and the impact of human activities, the water environment has also deteriorated, and more and more pollutants have flowed into lakes and oceans. Therefore, humans have paid more attention to water bodies, especially the ocean. Water quality detectors are needed for water quality testing. Strengthening water quality testing is an important part of water environment management. It is of great significance for 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] The Chinese patent application with the publication number CN118776975A discloses a sampling device for seawater quality detection, including a hull, a floating body, a sampling mechanism and a sample container storage mechanism, wherein the floating body is arranged at the bottom of the hull, the sampling mechanism and the sample container storage mechanism are arranged inside the hull, the hull and the bottom of the floating body are provided with a sampling port running through the inside, 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 a plurality of sample containers. The patent application drives the sample container into the water for sampling through the sampling mechanism, and then takes it out of the water after the sampling is completed and transports it to the sample container storage mechanism, which is used to store empty sample containers and sample containers containing seawater samples; the hull structure is compact and light, and can enter the sea area that large ships cannot enter for sampling, and a navigation mission can complete multiple samplings, thereby improving the 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, and multiple detection and sampling of seawater at different depths cannot be performed 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 that the detection efficiency and degree of freedom of the water quality detection sampling device in the prior art are average, the sampling equipment cannot be placed in different working sea areas according to actual needs when in use, and the seawater at different depths cannot be tested and sampled multiple times when sampling, and there is a 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, including a driving mechanism and a sampling mechanism, a plurality of locking chambers are arranged on the outer wall of the driving mechanism, a plurality of positioning columns are fixedly arranged on the outer wall of the locking chamber, a rotating shaft is rotatably arranged in the middle of the positioning column, and a plurality of plug-ins are fixedly arranged on the outer side of the rotating shaft; a floating body is arranged on the outer wall of the sampling mechanism, a locking seat that quickly cooperates with the driving mechanism is arranged on the floating body, a positioning outer groove that cooperates with the locking chamber is opened inside the locking seat, and a positioning outer groove that cooperates with the positioning column is opened on the inner wall of the positioning outer groove a matching positioning inner groove; a plurality of positioning cavities matching 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, a plurality of sampling tubes are installed on the lifting plate, a partition is also fixedly provided in the middle of the sampling mechanism, 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, a rotating plate that fits with the partition is fixedly provided at the bottom of the gear ring, a detection cylinder is provided on the top of the rotating plate, 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: a plurality of telescopic cavities are provided on the outer wall of the positioning column, a locking block is movably connected in the telescopic cavity, a plurality of locking springs are connected to the inner wall of the locking block, and an inclined surface is provided on the outer wall of the locking block close to the vertical portion; a plurality of first magnetic plates are also installed on the outer wall of the positioning column, and a plurality 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, 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 on the output end of the locking motor.

[0010] As a further solution of the present invention: a slide rail is fixedly provided at 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 at 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, a plurality of groups of cylinders are installed on the bottom of the mounting ring, the lifting plate is fixedly arranged at the bottom of the cylinder, and a plurality of groups of mounting seats cooperating with the sampling tube are arranged 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 arranged 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 a liquid inlet nozzle facing inward, and a sealing plug is movably installed at the bottom of the liquid inlet nozzle; a plurality of extrusion cavities are provided on the partition plate, a liquid discharge port 1 cooperating with the liquid inlet nozzle is provided at the bottom of the extrusion cavity, and the extrusion plug is movably arranged in the extrusion cavity; 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 arranged on the inner wall of the liquid discharge port 2.

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

[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 rubber hose is wound around the roller, the liquid outlet end of the rubber 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 driving motor is also installed on the inner wall of the sampling mechanism, and a driving gear meshing with the gear ring is installed at the output end of the driving motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can perform multiple tests on different depths of different sea areas through multiple 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 the 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 portion is inserted into the locking cavity. At this time, the locking block automatically pops out and locks the vertical portion and the inner wall of the positioning cavity again. This design improves the degree of freedom and practicality of the automatic sampling and detection device for water quality in nearshore waters.

[0017] 2. The present invention can greatly reduce the error during sampling through the cooperation 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 body of the last sample remaining in the hose will be discharged into the sea through the overflow pipe. After the discharge is complete, the first one-way valve and the second one-way valve 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 closed plug, and 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 performed and the rotating plate is separated from the extrusion plug, the closed 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

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is the three-dimensional structure of the driving mechanism in the present invention Figure 1 ; Figure 3 It is the three-dimensional structure of the locking chamber in the present invention Figure 1 ; Figure 4 It is the three-dimensional structure of the locking chamber in the present invention Figure 2 ; Figure 5 It is the internal three-dimensional structure of the locking chamber in the present invention. Figure 1 ; Figure 6 It is the internal three-dimensional structure of the locking chamber in the present invention. Figure 2; Figure 7 It is the three-dimensional structure of the driving mechanism in the present invention Figure 2 ; Figure 8 It is a three-dimensional structural diagram of the sampling mechanism in the present invention; Fig. 9 is a cross-sectional view of the sampling mechanism of the present invention; Fig.10 yes Fig. 9 A magnified view of the structure at center A; Fig.11 It is the internal three-dimensional structure of the sampling mechanism in the present invention Figure 1 ; Fig.12 It is the internal three-dimensional structure of the sampling mechanism in the present invention Figure 2 ; Fig.13 It is a three-dimensional structural diagram of the gear ring in the present invention.

[0019] Description of reference numerals: 1. Driving mechanism; 101. Propeller; 102. Locking chamber; 103. Positioning column; 104. Rotating hole; 105. Rotating shaft; 106. Rotating fan; 107. Plug-in; 108. Vertical part; 109. Arc-shaped part; 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; 2. Sampling mechanism; 201. Floating body; 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 plate; 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. Reset spring 2; 223. Drain port 2; 224. Push rod; 225. Through hole; 226. Sealed cylinder; 227. Gear ring; 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

[0020] The following will be combined with the attached Figures 1 to 13The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0021] The present invention provides an automatic sampling and detection device for water quality in coastal waters through improvement. Figure 1-Figure 13 As 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. 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. The outer side of the rotating shaft 105 is fixedly provided with multiple sets of plug-ins 107. The outer wall of the sampling mechanism 2 is provided with a floating body 201. The floating body 201 is provided with a locking seat 202 that quickly cooperates with the driving mechanism 1. The interior of the locking seat 202 is provided with a positioning outer groove 203 that cooperates with the locking chamber 102. 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 that cooperates with the positioning column 103. A plurality of positioning cavities 205 cooperating with the plug-in 107 are provided; 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 installed on the partition 212; a gear ring 227 is movably provided on the inner wall of the sampling mechanism 2, a rotating plate 228 fitted 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 of 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.

[0022] In this embodiment: the automatic sampling and detection device for water quality in coastal waters is mainly divided into two parts: a driving mechanism 1 and a sampling mechanism 2. When the device is in use, the driving mechanism 1 first transports multiple groups of sampling mechanisms 2 to the preset area. After reaching the preset position, under the drive of the locking motor 114 and the linkage gear 110, the plug-in 107 rotates counterclockwise to disengage from the locking chamber 206 and squeezes the inclined surface 119 on the locking block 117. At this time, the locking block 117 retracts into the telescopic chamber 116 and unlocks the inner wall between the vertical portion 108 and the positioning chamber 205. Then, when the rotating plate 228 is driven by the driving motor 229 to rotate between the adjacent extrusion plugs 221, the first one-way valve 234 is closed and the second one-way valve 235 is opened. At this time, the water body of the last sample remaining in the hose 240 will be discharged into the sea again through the overflow pipe 233. After the discharge is complete, the first one-way valve 234 and the second one-way valve 235 are closed at the same time. At this time, the seawater is temporarily stored in the detection cylinder 231 and detected by the sensor inside it. When the driving 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 drainage port 223, the drainage port 1 220 and the liquid inlet nozzle 214. When the sampling mechanism 2 completes the work, the driving mechanism 1 returns to the vicinity of the sampling mechanism 2 through the GPS mechanism, and is quickly locked through the first magnetic plate 120 and the second magnetic plate 207. Under the rotation of the linkage gear 110, the arc portion 109 rotates clockwise and is inserted into the locking cavity 206. At this time, the locking block 117 automatically pops out and locks the vertical portion 108 and the inner wall of the positioning cavity 205 again.

[0023] See attached Figure 3 -Attached Figure 4 and attached Figure 8 -Attached Fig. 9 A rotating hole 104 is provided in the middle of the positioning column 103, a 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 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 cooperating with the arc-shaped portion 109 is provided on the clockwise inner wall of the positioning cavity 205.

[0024] In this embodiment: before operation, the locking motor 114 drives the tooth plate 111 to slide. Under the rotation of the linkage gear 110, the plug 107 rotates counterclockwise to disengage from the locking cavity 206 and squeezes the inclined surface 119 on the locking block 117. At this time, the locking block 117 retracts into the telescopic cavity 116 and unlocks the vertical portion 108 and the inner wall of the positioning cavity 205. When the sampling mechanism 2 completes the work, 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 arc portion 109 rotates clockwise and is inserted into the locking cavity 206. At this time, the locking block 117 automatically pops out and locks the vertical portion 108 and the inner wall of the positioning cavity 205 again.

[0025] See attached Figure 3 -Attached Figure 4 and attached Figure 8 -Attached Fig. 9 A plurality of telescopic cavities 116 are provided on the outer wall of the positioning column 103, a locking block 117 is movably connected inside the telescopic cavity 116, a plurality of locking springs 118 are connected to the inner wall of the locking block 117, and an inclined surface 119 is provided on the outer wall of the locking block 117 near the vertical portion 108; 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 cooperating with the first magnetic plates 120 are installed on the inner wall of the positioning inner groove 204.

[0026] 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.

[0027] 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 meshing 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 meshing with the tooth plate 111 is installed at the output end of the locking motor 114.

[0028] In this embodiment, in order to automatically drive the toothed 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.

[0029] See attached Figure 1 -Attached Figure 2 and attached Figure 5 -Attached Figure 6A slide rail 113 is fixedly arranged at the bottom of the tooth plate 111 , and a slide groove 112 cooperating with the slide rail 113 is opened on the inner wall of the locking chamber 102 ; a plurality of propellers 101 are arranged at the bottom of the driving mechanism 1 .

[0030] In this embodiment, in order to install the tooth plate 111 and ensure its stability during sliding, a slide rail 113 and a slide 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 a predetermined area, a propeller 101 structure is designed.

[0031] See attached Fig. 9 and attached Fig.11 A mounting ring 208 is provided on the inner wall of the sampling mechanism 2, and a plurality of groups of cylinders 209 are installed at the bottom of the mounting ring 208. A lifting plate 210 is fixedly arranged at the bottom of the cylinder 209, and a plurality of groups of mounting seats 211 cooperating with the sampling tube 213 are arranged on the top of the lifting plate 210; a through hole 225 is opened in the middle of the partition plate 212, and a sealed cylinder 226 cooperating with the through hole 225 is arranged in the middle of the lifting plate 210.

[0032] In this embodiment: after the sampling is completed, in order to facilitate the disassembly and replacement of the sampling tube 213, a movable lifting plate 210 is designed. 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 against the bottom of the partition 212. In order to prevent seawater from corroding the sampling tube 213 and the interior of the sampling mechanism 2, a sealed cylinder 226 structure is designed. 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 against the bottom of the partition 212.

[0033] See attached Fig. 9 -Attached Fig.13 A liquid inlet nozzle 214 facing inward is arranged at the top of the sampling tube 213, 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 plate 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 arranged on the inner wall of the liquid discharge port 223.

[0034] In this embodiment: when the detection is completed, the rotating plate 228 moves to the top of the extrusion plug 221, and the push rod 224 moves downward and squeezes the sealing plug 215, and 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 drainage port 223, the drainage port 1 220 and the liquid inlet nozzle 214.

[0035] See attached Fig.11 -Attached Fig.13 A drain pipe 232 coaxial with the sampling tube 213 is fixedly provided at the bottom of the detection cylinder 231, 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.

[0036] In this embodiment, when the rotating plate 228 rotates to between adjacent extrusion plugs 221, the first one-way valve 234 is closed and the second one-way valve 235 is opened, and the water sampled last time remaining in the hose 240 is discharged back into the sea through the overflow pipe 233. After being discharged, the first one-way valve 234 and the second one-way valve 235 are closed at the same time, and the seawater is temporarily stored in the detection cylinder 231 and detected by the sensor inside it.

[0037] See attached Fig.11 -Attached Fig.13 A liquid inlet pipe 236 is fixedly arranged on the outer wall of the detection cylinder 231, and a support frame 237 is fixedly arranged on the rotating plate 228. A roller 238 with a hollow structure is rotatably arranged 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 inside 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 with 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.

[0038] In this embodiment: when the winding motor 239 drives the roller 238 to rotate and releases the hose 240, the roller 238 is movably connected with the liquid inlet pipe 236 under the action of the interface 243, and the deep seawater enters the interior of the detection cylinder 231 through the sampling pump 242 and the hose 240. When the winding 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.

[0039] See attached Fig. 9 -Attached Fig.12 A reset groove 216 is provided on the inner wall at the bottom of the liquid inlet nozzle 214, a plurality of reset springs 217 located in the reset groove 216 are connected to the top of the sealing plug 215, a frustum 218 is provided on the top of the sealing plug 215, and a plurality 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 gear ring 227 is installed at the output end of the driving motor 229.

[0040] In this embodiment, when the rotating plate 228 is separated from the squeeze plug 221, the squeeze plug 221 automatically pops up and returns to its original position under the action of the second return spring 222. At this time, the push rod 224 moves upward and separates from the sealing plug 215. Under the action of the first return spring 217, the sealing plug 215 automatically returns upward and seals the liquid inlet 214, so that the seawater sample is sealed in the sampling tube 213.

[0041] Working principle of the present invention: When the device is used, the driving mechanism 1 first transports the multiple sampling mechanisms 2 to the preset area. After reaching the preset position, the plug 107 rotates counterclockwise to disengage the locking cavity 206 and squeezes the inclined surface 119 on the locking block 117 under the drive of the locking motor 114 and the linkage gear 110. At this time, the locking block 117 retracts into the telescopic cavity 116 and unlocks the vertical portion 108 and the inner wall of the positioning cavity 205. Then, the driving motor 229 drives the rotating plate 228 to rotate between the adjacent squeezing plugs 221, closes the first one-way valve 234 and opens the second one-way valve 235. At this time, the water sampled last time remaining in the hose 240 will be discharged into the sea again through the overflow pipe 233. When the water is discharged, the first one-way valve 234 and the second one-way valve 235 are closed at the same time. At this time, the seawater is temporarily stored in the detection cylinder 231 and detected by the sensor inside it. When the driving 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 drainage port 223, the drainage port 1 220 and the liquid inlet nozzle 214. When the sampling mechanism 2 completes the work, the driving mechanism 1 returns to the vicinity of the sampling mechanism 2 through the GPS mechanism, and is quickly locked through the first magnetic plate 120 and the second magnetic plate 207. Under the rotation of the linkage gear 110, the arc portion 109 rotates clockwise and is inserted into the locking cavity 206. At this time, the locking block 117 automatically pops out and locks the vertical portion 108 and the inner wall of the positioning cavity 205 again.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those 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 will not be limited to the embodiments shown herein, but will 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 coastal waters, comprising a driving mechanism (1) and a sampling mechanism (2), characterized in that: A plurality of locking chambers (102) are arranged on the outer wall of the driving mechanism (1), a plurality of positioning columns (103) are fixedly arranged on the outer wall of the locking chamber (102), a rotating shaft (105) is rotatably arranged in the middle of the positioning column (103), and a plurality of plug-ins (107) are fixedly arranged on the outer side of the rotating shaft (105); A float (201) is arranged on the outer wall of the sampling mechanism (2); a locking seat (202) that quickly cooperates with the driving mechanism (1) is arranged on the float (201); a positioning outer groove (203) that cooperates with the locking chamber (102) is provided inside the locking seat (202); a positioning inner groove (204) that cooperates with the positioning column (103) is provided on the inner wall of the positioning outer groove (203); and 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 lifting plate (210) is movably provided at the bottom of the sampling mechanism (2), and a plurality of sampling tubes (213) are mounted on the lifting plate (210). A partition plate (212) is also fixedly provided at the middle of the sampling mechanism (2), and a plurality of extrusion plugs (221) capable of opening the sampling tubes (213) are movably mounted on the partition plate (212). A gear ring (227) is also movably provided on the inner wall of the sampling mechanism (2), and a rotating plate (228) in contact with the partition plate (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), and a rubber hose (240) of 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 rubber hose (240).

2. The automatic sampling and detection device for water quality in coastal waters according to claim 1 is 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 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) cooperating 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 coastal water quality according to claim 2 is 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); the outer wall of the positioning column (103) is also provided with a plurality of first magnetic plates (120), and the inner wall of the positioning inner groove (204) is provided with a plurality of second magnetic plates (207) cooperating with the first magnetic plates (120).

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

5. The automatic sampling and detection device for coastal water quality according to claim 4 is characterized in that: A slide rail (113) is fixedly arranged 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 arranged at the bottom of the driving mechanism (1).

6. An automatic sampling and detection device for coastal 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 groups of cylinders (209) are installed at the bottom of the mounting ring (208), the lifting plate (210) is fixedly arranged at the bottom of the cylinder (209), and a plurality of groups of mounting seats (211) cooperating with the sampling tube (213) are provided at the top of the lifting plate (210); a through hole (225) is provided in the middle of the partition plate (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 detection device for coastal water quality according to claim 1 is characterized by: The top of the sampling tube (213) is provided with a liquid inlet nozzle (214) facing inwards, and a sealing plug (215) is movably installed at the bottom of the liquid inlet nozzle (214); a plurality of groups of extrusion chambers (219) are provided on the partition plate (212), and a first liquid discharge port (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 second liquid discharge port (223) cooperating with the first liquid discharge port (220) is provided in the middle of the extrusion plug (221), and a downward-facing ejector rod (224) is fixedly arranged on the inner wall of the second liquid discharge port (223).

8. An automatic sampling and detection device for coastal water quality according to any one of claims 1 to 5, characterized in that: A drainage pipe (232) coaxial with the sampling tube (213) is fixedly arranged at the bottom of the detection cylinder (231); an overflow pipe (233) is connected to the outer wall of the drainage pipe (232); a first one-way valve (234) is arranged in the middle of the drainage pipe (232); and a second one-way valve (235) is arranged in the middle of the overflow pipe (233).

9. An automatic sampling and detection device for water quality in coastal waters according to any one of claims 1 to 5, characterized in that: A liquid inlet pipe (236) is also fixedly arranged on the outer wall of the detection cylinder (231); a support frame (237) is also fixedly arranged on the rotating plate (228); a roller shaft (238) having a hollow structure is rotatably arranged on the support frame (237); the rubber hose (240) is wound around the roller shaft (238); a liquid outlet end of the rubber hose (240) is connected to the inside of the roller shaft (238) through a connecting portion (241); an interface component (243) is installed on one side of the roller shaft (238); the roller shaft (238) is movably connected to the liquid inlet pipe (236) through the interface component (243); and 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 water quality in coastal waters according to claim 7, characterized in that: A reset groove (216) is provided on the inner wall at the bottom of the liquid inlet nozzle (214); the top of the sealing plug (215) is connected to a plurality of sets of reset springs (217) located in the reset groove (216); a frustum (218) is provided on the top of the sealing plug (215); and the bottom of the extrusion plug (221) is connected to a plurality of sets of reset springs (222); a driving motor (229) is also installed on the inner wall of the sampling mechanism (2); and a driving gear (230) meshing with the gear ring (227) is installed at the output end of the driving motor (229).

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