阅读说明：本技术 一种基于物联网技术的水质监测系统 (Water quality monitoring system based on internet of things ) 是由 万杰 闫可 万家豪 于 2021-09-28 设计创作，主要内容包括：本申请提供一种基于物联网技术的水质监测系统,所述水质监测系统包括有若干水质检查设备、云平台和终端APP,所述水质检查设备包括用于采集水样并进行检查的机械单元、单片机、无线收发模块、电源模块,所述单片机控制无线收发模块与所述云平台或相邻水质检查设备的无线收发模块数据交互,所述云平台与终端APP数据交互,所述单片机控制机械单元工作；本申请利用物联网技术控制若干水质检查设备对水质进行监测,能够实时对河流中氨氮及PH值进行监测,时效性强,降低了人工的劳动强度。(The application provides a water quality monitoring system based on the technology of the Internet of things, and the water quality monitoring system comprises a plurality of water quality inspection devices, a cloud platform and a terminal APP, wherein each water quality inspection device comprises a mechanical unit, a single chip microcomputer, a wireless transceiver module and a power supply module, the mechanical unit is used for collecting water samples and inspecting the water samples, the single chip microcomputer controls the wireless transceiver module to perform data interaction with the cloud platform or the wireless transceiver module of the adjacent water quality inspection device, the cloud platform performs data interaction with the terminal APP, and the single chip microcomputer controls the mechanical unit to work; this application utilizes a plurality of water quality inspection equipment of internet of things control to monitor quality of water, can monitor ammonia nitrogen and PH value in the river in real time, and the ageing is strong, has reduced artificial intensity of labour.)

1. A water quality monitoring system based on the technology of the Internet of things is characterized by comprising a plurality of water quality inspection devices, a cloud platform and a terminal APP;

the water quality inspection equipment comprises a mechanical unit, a single chip microcomputer, a wireless transceiving module and a power supply module, wherein the mechanical unit is used for collecting a water sample and inspecting the water sample;

the single chip microcomputer controls the wireless transceiver module to perform data interaction with the cloud platform or the wireless transceiver module of the adjacent water quality inspection equipment, the cloud platform performs data interaction with the terminal APP, and the single chip microcomputer controls the mechanical unit to work.

2. The water quality monitoring system based on the Internet of things technology is characterized in that the mechanical unit comprises a floating platform (1), a sampling mechanism for collecting water samples is installed at the bottom of the floating platform (1), a detection mechanism for detecting the collected water samples is installed in the floating platform (1), and the water outlet end of the sampling mechanism is connected with the water inlet end of the detection mechanism;

the detection mechanism comprises a first detection assembly and a second detection assembly which are respectively used for detecting ammonia nitrogen and PH value of a water sample, and the first detection assembly and the second detection assembly are driven to be sequentially switched in the sampling process of the sampling mechanism, so that the first detection assembly and the second detection assembly are sequentially connected with the water outlet end of the sampling mechanism.

3. The water quality monitoring system based on the internet of things technology as recited in claim 2, wherein the sampling mechanism comprises a first motor (2), a piston cylinder (3), a piston plate (4), a first one-way valve (5), a second one-way valve (6), a threaded sleeve (7), a first water pipe (8), a screw (9), a strip-shaped limiting block (10) and a strip-shaped limiting chute (11);

the piston cylinder (3) is installed at the bottom of the floating platform (1), the piston plate (4) slides along the inner wall of the piston cylinder (3), a first one-way valve (5) is installed at the bottom of the piston cylinder (3), a second one-way valve (6) is installed on the side wall of the piston cylinder (3), the second one-way valve (6) is connected with the water inlet end of a first water pipe (8), and the first water pipe (8) extends into the floating platform and is connected with the water inlet end of the detection unit;

the first motor (2) is installed on the floating platform (1), a power output shaft of the first motor (2) is fixedly connected with the top end of the screw rod (9), the screw rod (9) is in threaded connection with the threaded sleeve (7), the threaded sleeve (7) penetrates through the floating platform (1), and the bottom end of the threaded sleeve (7) is fixedly connected to the piston plate (4);

be provided with bar stopper (10) on the lateral wall of threaded sleeve (7), float in platform (1) install with bar stopper (10) sliding fit's bar spacing spout (11).

4. The water quality monitoring system based on the Internet of things technology as claimed in claim 3, wherein the water sample detection mechanism comprises a first cylinder (12), a circular rotating plate (13), a water flowing groove (14), a first liquid storage tank (15), a first image collector (16), a second liquid storage tank (17), a second image collector (18), a water storage cylinder (19), a first rotating shaft (20), a mounting plate (21), a first driving assembly and a second driving assembly;

the first cylinder (12) is installed in the floating platform (1), a circular rotating plate (13) is rotatably arranged on the first cylinder (12), and two water flowing grooves (14) which are distributed along the circular shape of the circular rotating plate (13) in 180 degrees are formed in the circular rotating plate (13);

the first detection assembly and the second detection assembly respectively comprise water sample storage modules, the two water sample storage modules are respectively installed in two water flow grooves (14), the first detection assembly further comprises a first liquid storage tank (15) which is installed on a top plate of the floating platform (1) and used for storing ammonia nitrogen detection liquid and a first image collector (16) which is installed on the top plate of the floating platform (1) and used for collecting ammonia nitrogen detection water sample color change, the second detection assembly further comprises a second liquid storage tank (17) which is installed on the top plate of the floating platform (1) and used for storing PH reagent and a second image collector (18) which is used for collecting PH detection water sample color change, and electromagnetic valves used for controlling flow are installed at liquid outlets of the first liquid storage tank (15) and the second liquid storage tank (17);

the water sample storage module comprises a water storage barrel (19), a first rotating shaft (20) is fixedly connected to the side wall of the water storage barrel (19), the first rotating shaft (20) is rotatably mounted on a mounting plate (21), the bottom end of the mounting plate (21) is mounted in the water flowing groove (14), and the water outlet end of the first water pipe (8) is located above the water storage barrel (19) close to the circle center of the circular rotating plate (13);

the water sample detection assembly is characterized by further comprising a first driving assembly arranged in the floating platform (1) and used for driving the circular rotating plate (13) to rotate, and a second driving assembly arranged on the side wall of the first barrel (12) and used for driving the water storage barrel (19) to rotate around the first rotating shaft (20).

5. The water quality monitoring system based on the Internet of things technology is characterized in that the first driving assembly comprises a rack plate (22), a gear (23), a ratchet wheel (24), a second rotating shaft (25), a third rotating shaft (26), a first bevel gear (27), a fourth rotating shaft (28), a second bevel gear (29) and a transmission piece (30);

the rack plate (22) is mounted on the side wall of the threaded sleeve (7), the rack plate (22) is in meshed transmission with a gear (23), the gear (23) is mounted on the outer wall of the ratchet wheel (24), the ratchet wheel (24) is mounted on the second rotating shaft (25), and the second rotating shaft (25) is rotatably mounted on the outer wall of the first cylinder (12);

the bottom end of the third rotating shaft (26) is installed at the bottom of the first cylinder (12), the top end of the third rotating shaft (26) is fixedly connected to the circle center of the lower surface of the circular rotating plate (13), a first bevel gear (27) is further installed on the third rotating shaft (26), one end of the fourth rotating shaft (28) is rotatably installed on the inner wall of the first cylinder (12), a second bevel gear (29) is installed at the other end of the fourth rotating shaft (28), and the second bevel gear (29) is in meshing transmission with the first bevel gear (27);

the fourth rotating shaft (28) and the second rotating shaft (25) are arranged in parallel, and the second rotating shaft (25) transmits the fourth rotating shaft (28) through a transmission piece (30).

6. The water quality monitoring system based on the technology of the internet of things as recited in claim 1, wherein the second driving module comprises a mounting block (31), a guide rod (32), a top block (33), a first slotting tool (34), a spring (35), a second slotting tool (36) and a guide inclined plane (37);

the mounting block (31) is mounted on the side wall of the first cylinder (12), more than two sliding holes are formed in the mounting block (31), the guide rods (32) are in sliding fit with the sliding holes, one ends, close to the circular rotating plates (13), of the guide rods (32) are fixedly connected to the ejector block (33), the other ends of the guide rods (32) are arranged on the first slotting tool (34), and springs (35) are further sleeved on the guide rods (32) between the first slotting tool (34) and the mounting block (31);

still install on the lateral wall of threaded sleeve (7) with first slotting tool (34) cooperation is used for driving gliding second slotting tool (36) of kicking block (33), kicking block (33) slip in-process drive a water storage cylinder (19) rotates around first pivot (20), first slotting tool (34) be close to second slotting tool (36) one side and second slotting tool (36) are close to the last lower extreme of first slotting tool (34) one side and all are provided with direction inclined plane (37).

7. The water quality monitoring system based on the internet of things technology as recited in claim 1, wherein the power module comprises a storage battery (38) installed in the floating platform (1) and a photovoltaic module (39) installed on the floating platform and used for charging the storage battery (38).

8. The water quality monitoring system based on the internet of things technology as claimed in claim 6, wherein water collecting grooves (40) are arranged on two sides of the installation block (31), the water collecting grooves (40) are connected with water inlets of second water pipes (41), and water outlets of the second water pipes (41) penetrate through the bottom of the floating platform (1).

Technical Field

The invention relates to the field of water quality monitoring, in particular to a water quality monitoring system based on the technology of the Internet of things.

Background

The water quality monitoring is a process of monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition; along with the rapid increase and expansion of the number and the scale of cities, the problem of urban domestic sewage is increasingly serious, from the viewpoint of the sewage discharge structure of China, the discharge amount of the sewage of residents exceeds the discharge amount of the industrial sewage for the first time in 1999, and the sewage of residents is always in the leading position in the sewage discharge of cities in China during more than ten years later, and the specific gravity is increased year by year.

The pollutant that domestic sewage contained is organic matter (like ammonia nitrogen), and domestic sewage still can make water pH change simultaneously, consequently, monitors quality of water environment in can effectively monitoring the river to aquatic ammonia nitrogen and pH, and current monitoring process, the many things are through artifical sampling detection, and the timeliness of detection is low, and artificial intensity of labour is high.

Disclosure of Invention

The invention aims to provide a water quality monitoring system based on the technology of the Internet of things, which can be used for monitoring the water quality of rivers.

The purpose of the invention is realized by the technical scheme that the water quality monitoring system comprises a plurality of water quality inspection devices, a cloud platform and a terminal APP;

the water quality inspection equipment comprises a mechanical unit, a single chip microcomputer, a wireless transceiving module and a power supply module, wherein the mechanical unit is used for collecting a water sample and inspecting the water sample;

the single chip microcomputer controls the wireless transceiver module to perform data interaction with the cloud platform or the wireless transceiver module of the adjacent water quality inspection equipment, the cloud platform performs data interaction with the terminal APP, and the single chip microcomputer controls the mechanical unit to work.

Further, the mechanical unit comprises a floating platform, a sampling mechanism for collecting a water sample is installed at the bottom of the floating platform, a detection mechanism for detecting the collected water sample is installed in the floating platform, and the water outlet end of the sampling mechanism is connected with the water inlet end of the detection mechanism;

the detection mechanism comprises a first detection assembly and a second detection assembly which are respectively used for detecting ammonia nitrogen and PH value of a water sample, and the first detection assembly and the second detection assembly are driven to be sequentially switched in the sampling process of the sampling mechanism, so that the first detection assembly and the second detection assembly are sequentially connected with the water outlet end of the sampling mechanism.

Further, the sampling mechanism comprises a first motor, a piston cylinder, a piston plate, a first one-way valve, a second one-way valve, a threaded sleeve, a first water pipe, a screw, a strip-shaped limiting block and a strip-shaped limiting chute;

the piston cylinder is installed at the bottom of the floating platform, the piston plate slides along the inner wall of the piston cylinder, a first one-way valve is installed at the bottom of the piston cylinder, a second one-way valve is installed on the side wall of the piston cylinder, the second one-way valve is connected with the water inlet end of a first water pipe, and the first water pipe extends into the floating platform and is connected with the water inlet end of the detection unit;

the first motor is installed on the floating platform, a power output shaft of the first motor is fixedly connected with the top end of the screw rod, the screw rod is in threaded connection with the threaded sleeve, the threaded sleeve penetrates through the floating platform, and the bottom end of the threaded sleeve is fixedly connected to the piston plate;

be provided with the bar stopper on the telescopic lateral wall of screw thread, float and install in the platform with the spacing spout of bar stopper sliding fit's bar.

Further, the water sample detection mechanism comprises a first cylinder, a circular rotating plate, a water flowing groove, a first liquid storage tank, a first image collector, a second liquid storage tank, a second image collector water storage cylinder, a first rotating shaft, a mounting plate, a first driving assembly and a second driving assembly;

the first cylinder is mounted in the floating platform, a circular rotating plate is rotatably arranged on the first cylinder, and two water flowing grooves which are distributed along the circular shape of the circular rotating plate in 180 degrees are formed in the circular rotating plate;

the first detection assembly and the second detection assembly respectively comprise water sample storage modules, the two water sample storage modules are respectively installed in two water flow grooves, the first detection assembly further comprises a first liquid storage tank which is installed on the top plate of the floating platform and used for storing ammonia nitrogen detection liquid and a first image collector which is installed on the top plate of the floating platform and used for collecting color changes of the ammonia nitrogen detection water sample, the second detection assembly further comprises a second liquid storage tank which is installed on the top plate of the floating platform and used for storing PH reagents and a second image collector which is installed on the top plate of the floating platform and used for collecting color changes of the PH detection water sample, and electromagnetic valves used for controlling flow are installed at liquid outlets of the first liquid storage tank and the second liquid storage tank;

the water sample storage module comprises a water storage barrel, a first rotating shaft is fixedly connected to the side wall of the water storage barrel, the first rotating shaft is rotatably mounted on a mounting plate, the bottom end of the mounting plate is mounted in the water flowing groove, and the water outlet end of the first water pipe is positioned above the water storage barrel close to the circle center of the circular rotating plate;

the water sample detection assembly is characterized by further comprising a first driving assembly which is arranged in the floating platform and used for driving the circular rotating plate to rotate, and a second driving assembly which is arranged on the side wall of the first barrel and used for driving the water storage barrel to rotate around the first rotating shaft is arranged on the side wall of the first barrel.

Further, the first driving assembly comprises a rack plate, a gear, a ratchet wheel, a second rotating shaft, a third rotating shaft, a first bevel gear, a fourth rotating shaft, a second bevel gear and a transmission part;

the rack plate is arranged on the side wall of the threaded sleeve, the rack plate is in meshed transmission with a gear, the gear is arranged on the outer wall of the ratchet wheel, the ratchet wheel is arranged on the second rotating shaft, and the second rotating shaft is rotatably arranged on the outer wall of the first barrel;

the bottom end of the third rotating shaft is mounted at the bottom of the first cylinder, the top end of the third rotating shaft is fixedly connected to the circle center of the lower surface of the circular rotating plate, a first bevel gear is further mounted on the third rotating shaft, one end of the fourth rotating shaft is rotatably mounted on the inner wall of the first cylinder, a second bevel gear is mounted at the other end of the fourth rotating shaft, and the second bevel gear is in meshing transmission with the first bevel gear;

the fourth rotating shaft and the second rotating shaft are arranged in parallel, and the second rotating shaft drives the fourth rotating shaft through a transmission piece.

Further, the second driving module comprises a mounting block, a guide rod, a top block, a first slotting tool, a spring, a second slotting tool and a guide inclined plane;

the mounting block is mounted on the side wall of the first cylinder body, more than two sliding holes are formed in the mounting block, the guide rods are in sliding fit with the sliding holes, one ends, close to the circular rotating plates, of the guide rods are fixedly connected to the ejector block, the other ends of the guide rods are arranged on the first slotting tool, and springs are further sleeved on the guide rods between the first slotting tool and the mounting block;

still install on the telescopic lateral wall of screw thread with first slotting tool cooperation is used for driving the gliding second slotting tool of kicking block, the kicking block slides in-process drive a water storage cylinder rotates around first pivot, first slotting tool be close to second slotting tool one side and the second slotting tool is close to the last lower extreme of first slotting tool one side and all is provided with the direction inclined plane.

Further, the power module is including installing battery in the floating platform and installing be used for on the floating platform right the photovoltaic module that the battery charges.

Furthermore, the two sides of the mounting block are provided with water collecting grooves, the water collecting grooves are connected with the water inlet of the second water pipe, and the water outlet end of the second water pipe penetrates through the bottom of the floating platform.

Due to the adoption of the technical scheme, the invention has the following advantages:

1. this application utilizes a plurality of water quality inspection equipment of internet of things control to monitor quality of water, can monitor ammonia nitrogen and PH value in the river in real time, and the ageing is strong, has reduced artificial intensity of labour.

2. This application threaded sleeve upwards slides the in-process and drives the piston board and inhale water to drive circular rotor plate through first drive module and rotate, make two water sample storage module shift positions on the circular rotor plate, go upward the in-process simultaneously and drive a water storage section of thick bamboo through second drive assembly and rotate around first pivot, pour out the water sample that will detect last time.

3. This application screw sleeve slides down in-process and drives the water sample of piston plate in with the piston cylinder and impresses in the water storage cylinder, screw sleeve downstream in-process drives the water storage cylinder through second drive assembly and rotates around first pivot simultaneously, the water sample of pressurized-water in earlier stage is poured out, realize the washing to water storage cylinder inner wall, the influence of last detection to this detection has been avoided, the degree of accuracy of detection is high, water storage cylinder is rotating the in-process simultaneously, the water sample that the outlet pipe flows washs water storage cylinder outer wall, keep the clean of pipe wall, the sampling of the image acquisition subassembly of being convenient for.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic structural diagram of a water quality monitoring system according to the present invention.

FIG. 2 is a schematic view of the structure of the water quality inspection apparatus of the present invention.

FIG. 3 is a sectional view of the water quality inspecting apparatus of the present invention.

FIG. 4 is a schematic view of the internal structure of the floating platform of the present invention.

Fig. 5 is a partial enlarged view of the invention at a in fig. 4.

Fig. 6 is a schematic view of the internal structure of the first cylinder according to the present invention.

FIG. 7 is a schematic view of the ratchet of the present invention.

In the figure: 1-a floating platform; 2-a first electric machine; 3-a piston cylinder; 4-a piston plate; 5-a first one-way valve; 6-a second one-way valve; 7-a threaded sleeve; 8-a first water pipe; 9-screw rod; 10-a strip-shaped limiting block; 11-a strip-shaped limiting chute; 12-a first cylinder; 13-circular rotating plate; 14-a water flowing groove; 15-a first reservoir; 16-a first image collector; 17-a second reservoir; 18-a second image collector; 19-a water storage cylinder; 20-a first rotating shaft; 21-mounting a plate; 22-a rack plate; 23-a gear; 24-a ratchet wheel; 25-a second rotating shaft; 26-a third rotating shaft; 27-a first bevel gear; 28-a fourth rotating shaft; 29-a second bevel gear; 30-a transmission member; 31-a mounting block; 32-a guide rod; 33-a top block; 34-a first slotting cutter; 35-a spring; 36-a second slotting cutter; 37-a guide ramp; 38-a storage battery; 39-a photovoltaic module; 40-a water collecting tank; 41-second water pipe.

Detailed Description

The invention is further illustrated by the following figures and examples.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 7, the water quality monitoring system based on the internet of things technology comprises a plurality of water quality inspection devices, a cloud platform and a terminal APP;

the water quality inspection equipment comprises a mechanical unit, a single chip microcomputer, a wireless transceiving module and a power supply module, wherein the mechanical unit is used for collecting a water sample and inspecting the water sample;

the single chip microcomputer controls the wireless transceiver module to perform data interaction with the cloud platform or the wireless transceiver module of the adjacent water quality inspection equipment, the cloud platform performs data interaction with the terminal APP, and the single chip microcomputer controls the mechanical unit to work.

In the embodiment of the invention, a plurality of water quality inspection devices are sequentially arranged in a river to be monitored, the water quality inspection devices are controlled to inspect the sampled water quality through the internet technology, and when pollutants inspected by a single water quality inspection device exceed the standard, other water quality inspection devices at the upstream of the river are started to inspect the water quality, so that a pollution source can be quickly positioned.

As an embodiment of the invention, the mechanical unit comprises a floating platform 1, a sampling mechanism for collecting a water sample is installed at the bottom of the floating platform 1, a detection mechanism for detecting the collected water sample is installed in the floating platform 1, and a water outlet end of the sampling mechanism is connected with a water inlet end of the detection mechanism;

the detection mechanism comprises a first detection assembly and a second detection assembly which are respectively used for detecting ammonia nitrogen and PH value of a water sample, and the first detection assembly and the second detection assembly are driven to be sequentially switched in the sampling process of the sampling mechanism, so that the first detection assembly and the second detection assembly are sequentially connected with the water outlet end of the sampling mechanism.

In the embodiment of the invention, the sampling mechanism collects a water sample to be detected and conveys the water sample to the first detection assembly and the second detection assembly for ammonia nitrogen and PH value examination respectively.

As an embodiment of the present invention, the sampling mechanism includes a first motor 2, a piston cylinder 3, a piston plate 4, a first check valve 5, a second check valve 6, a threaded sleeve 7, a first water pipe 8, a screw 9, a bar-shaped limiting block 10, and a bar-shaped limiting chute 11;

the piston cylinder 3 is installed at the bottom of the floating platform 1, the piston plate 4 slides along the inner wall of the piston cylinder 3, a first one-way valve 5 is installed at the bottom of the piston cylinder 3, a second one-way valve 6 is installed on the side wall of the piston cylinder 3, the second one-way valve 6 is connected with the water inlet end of a first water pipe 8, and the first water pipe 8 extends into the floating platform and is connected with the water inlet end of the detection unit;

the first motor 2 is installed on the floating platform 1, a power output shaft of the first motor 2 is fixedly connected with the top end of the screw rod 9, the screw rod 9 is in threaded connection with the threaded sleeve 7, the threaded sleeve 7 penetrates through the floating platform 1, and the bottom end of the threaded sleeve 7 is fixedly connected to the piston plate 4;

be provided with bar stopper 10 on the lateral wall of threaded sleeve 7, float and install in the platform 1 with bar stopper 10 sliding fit's bar spacing spout 11.

In the embodiment of the invention, when the first motor 2 drives the threaded sleeve 7 to move downwards along the strip-shaped limiting chute 11 in a forward transmission mode, the water sample is extruded out of the second one-way valve 6 to the detection mechanism, and when the first motor 2 drives the threaded sleeve 7 to move upwards along the strip-shaped limiting chute 11 in a backward transmission mode, the water in the river is sucked into the piston cylinder 3 from the first one-way valve 5.

As an embodiment of the present invention, the water sample detecting mechanism includes a first cylinder 12, a circular rotating plate 13, a water flowing groove 14, a first liquid storage tank 15, a first image collector 16, a second liquid storage tank 17, a second image collector 18, a water storage cylinder 19, a first rotating shaft 20, an installation plate 21, a first driving assembly, and a second driving assembly;

the first cylinder 12 is installed in the floating platform 1, a circular rotating plate 13 is rotatably arranged on the first cylinder 12, and two water flowing grooves 14 which are distributed along the circular shape of the circular rotating plate 13 in 180 degrees are formed in the circular rotating plate 13;

the first detection assembly and the second detection assembly respectively comprise water sample storage modules, the two water sample storage modules are respectively installed in two water flowing grooves 14, the first detection assembly further comprises a first liquid storage tank 15 which is installed on a top plate of the floating platform 1 and used for storing ammonia nitrogen detection liquid and a first image collector 16 which is used for collecting color change of the ammonia nitrogen detection water sample, the second detection assembly further comprises a second liquid storage tank 17 which is installed on the top plate of the floating platform 1 and used for storing PH reagent and a second image collector 18 which is used for collecting color change of the PH detection water sample, and electromagnetic valves used for controlling flow are installed at liquid outlets of the first liquid storage tank 15 and the second liquid storage tank 17;

the water sample storage module comprises a water storage barrel 19, a first rotating shaft 20 is fixedly connected to the side wall of the water storage barrel 19, the first rotating shaft 20 is rotatably installed on an installation plate 21, the bottom end of the installation plate 21 is installed in the water flowing groove 14, and the water outlet end of the first water pipe 8 is located above the water storage barrel 19 close to the circle center of the circular rotating plate 13;

the water sample detection assembly is characterized by further comprising a first driving assembly arranged in the floating platform 1 and used for driving the circular rotating plate 13, and a second driving assembly arranged on the side wall of the first barrel 12 and used for driving the water storage barrel 19 to rotate around the first rotating shaft 20.

In the embodiment of the invention, the water storage cylinders 19 are made of transparent materials, the number of the first liquid storage tanks 15 is two, and the first liquid storage tanks are respectively used for storing an ammonia nitrogen reagent I and an ammonia nitrogen reagent II, when the two water storage cylinders 19 are stored in a detection water sample, the ammonia nitrogen reagent I and the ammonia nitrogen reagent II are sequentially added into the water storage cylinder 19 on one side, the PH reagent is added into the water storage cylinder 19 on the other side, color changes are collected through the first image collector 16 and the second image collector 18 respectively, collected data are uploaded to a cloud platform through the wireless communication module and are compared with a colorimetric card, and the ammonia nitrogen content and the PH value are judged.

As an embodiment of the present invention, the first driving assembly includes a rack plate 22, a gear 23, a ratchet 24, a second rotating shaft 25, a third rotating shaft 26, a first bevel gear 27, a fourth rotating shaft 28, a second bevel gear 29, and a transmission member 30;

the rack plate 22 is mounted on the side wall of the threaded sleeve 7, the rack plate 22 is in meshed transmission with a gear 23, the gear 23 is mounted on the outer wall of the ratchet wheel 24, the ratchet wheel 24 is mounted on the second rotating shaft 25, and the second rotating shaft 25 is rotatably mounted on the outer wall of the first barrel 12;

the bottom end of the third rotating shaft 26 is installed at the bottom of the first cylinder 12, the top end of the third rotating shaft 26 is fixedly connected to the center of the circle of the lower surface of the circular rotating plate 13, the third rotating shaft 26 is further provided with a first bevel gear 27, one end of the fourth rotating shaft 28 is rotatably installed on the inner wall of the first cylinder 12, the other end of the fourth rotating shaft 28 is provided with a second bevel gear 29, and the second bevel gear 29 is in meshing transmission with the first bevel gear 27;

the fourth rotating shaft 28 is parallel to the second rotating shaft 25, and the second rotating shaft 25 drives the fourth rotating shaft 28 through a transmission member 30.

In the embodiment of the invention, in the process that the motor 2 drives the threaded sleeve 7 to move upwards, the piston plate 4 is driven to pump a water sample into the piston cylinder 3 from the first one-way valve 6, meanwhile, the rack plate 22 moves upwards to drive the gear 23 to rotate, the locking surface of the ratchet wheel 24 is locked to drive the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the fourth rotating shaft 28 to rotate through the transmission piece 30, the fourth rotating shaft 28 drives the third rotating shaft 26 to rotate through the bevel gear set, the third rotating shaft 26 drives the circular rotating plate 13 to rotate 180 degrees, when the circular rotating plate 13 rotates 180 degrees, the gear 23 is separated from the rack plate 22, the threaded sleeve 7 continues to move upwards, the first slotting tool 34 is in contact with the second slotting tool 36, the top block 33 drives the water storage cylinder 19 to rotate around the first rotating shaft 20, and the last detected water sample is poured out; the threaded sleeve 7 continues to go upward, the first slotting tool 34 is separated from the second slotting tool 36, and the water storage barrel 19 is reset.

As an embodiment of the present invention, the second driving module includes a mounting block 31, a guide rod 32, a top block 33, a first slotting cutter 34, a spring 35, a second slotting cutter 36, a guide slope 37;

the mounting block 31 is mounted on the side wall of the first cylinder 12, the mounting block 31 is provided with more than two sliding holes, the guide rod 32 is in sliding fit with the sliding holes, one end of the guide rod 32 close to the circular rotating plate 13 is fixedly connected to the ejector block 33, the other end of the guide rod 32 is arranged on the first slotting tool 34, and the guide rod 32 between the first slotting tool 34 and the mounting block 31 is further sleeved with a spring 35;

still install on the lateral wall of threaded sleeve 7 with first slotting tool 34 cooperates and is used for driving the gliding second slotting tool 36 of kicking block 33, the kicking block 33 slides in-process drive a water storage cylinder 19 rotates around first pivot 20, first slotting tool 34 be close to second slotting tool 36 one side and second slotting tool 36 is close to the last lower extreme of first slotting tool 34 one side and all is provided with direction inclined plane 37.

In the embodiment of the invention, in the descending process of the threaded sleeve 7 driven by the motor 2, the ratchet wheel 24 is in an unlocked state, the gear 23 cannot drive the circular rotating plate 13 to rotate, the threaded sleeve 7 drives the piston plate 4 to press out a water sample from the second one-way valve 6 when descending, the water sample flows into the water storage cylinder 19 through the first pipeline 8, after a certain amount of water sample is stored in the water storage cylinder 19, the guide inclined plane 37 of the first slotting cutter 34 is in contact with the guide inclined plane 37 of the second slotting cutter 36, the first slotting cutter 34, the guide rod 32 and the top block 33 are driven to slide towards one side close to the water storage cylinder 19, the top block 33 drives the water storage cylinder 19 to rotate around the first rotating shaft 20, the water sample in the water storage cylinder 19 is poured out, the cleaning of the inner wall of the water storage cylinder 19 is completed, the influence of the last detected residual water sample on the current detection is prevented, and simultaneously, the water sample flowing out from the first pipeline 8 cleans the outer wall of the water storage cylinder 19 during the rotation process, the threaded sleeve 7 continues to descend, the first slotting tool 34 is separated from the second slotting tool 36, the water storage cylinder 19 is reset, and the water sample flowing out of the first pipeline 8 enters the water storage cylinder 19 again for detection.

As an embodiment of the invention, the power module comprises a storage battery 38 mounted in the flotation platform 1 and a photovoltaic module 39 mounted on the flotation platform for charging the storage battery 38.

In the present example, the photovoltaic module 39 is provided to charge the storage battery 38, and the storage battery 38 supplies power to the water quality inspection equipment.

As an embodiment of the invention, the two sides of the mounting block 31 are both provided with water collecting grooves 40, the water collecting grooves 40 are both connected with the inlet water of a second water pipe 41, and the outlet end of the second water pipe 41 penetrates through the bottom of the floating platform 1.

In the present embodiment, the water sample for cleaning the inner and outer walls of the water trap 19 flows into the water collection tank 40 along the water flowing grooves 14 and flows out of the water quality inspection apparatus through the second water pipe 41.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.