Floating type water quality detector and use method thereof

Abstract

The invention relates to the technical field of water quality detectors, in particular to a floating type water quality detector and a using method thereof.The floating type water quality detector comprises a buoy, the lower end of the buoy is fixedly connected with a square base, and a supporting arm is fixedly installed on the outer surface of the square base; the device has the beneficial effects that a composite filtering structure formed by combining the outer fixed detection column and the inner conical filter cover is adopted, so that the flowing resistance of water flow around the outer fixed detection column can be reduced, the flowing of the water flow in each detection area can be met, suspended matters, impurities, particulate matters and the like close to a monitoring probe can be blocked, and the detection accuracy is improved. Through mutual cooperation of a probe protection sleeve and a running water disturbance assembly, water flow disturbance on the upper portion of the outer fixed detection column is achieved, the water flow fluidity is improved, an inner conical filter cover can be driven to move to pump the water flow, and the water flow disturbance effect is improved; and self-cleaning of the outer fixed detection column and the inner conical filter casing is realized.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detectors, in particular to a floating water quality detector and a use method thereof. Background Art

[0002] A floating water quality detector is a device that uses advanced sensor technology and remote communication technology to monitor and record water quality parameters in real time and accurately. It is usually composed of floats equipped with various sensors. These floats can be deployed in rivers, lakes, reservoirs and even offshore waters as needed to form an all-round, three-dimensional water quality monitoring network. Through satellite or mobile communication networks, monitoring data can be transmitted to the data center in real time for experts to analyze and process. The built-in algorithm can automatically identify abnormal water quality data, trigger an early warning mechanism, and send alarm information to relevant departments in a timely manner, thereby effectively responding to water pollution incidents.

[0003] In the prior art, such as a floating water quality monitoring device with publication number CN220251920U, the prior art includes a floating platform base, a through hole is provided in the middle of the floating platform base, a fixed plate is installed inside the through hole, and a monitoring probe is installed at the bottom of the fixed plate; a filter screen is installed at the bottom of the floating platform base, a scraper ring is installed on the filter screen, a shell is installed on the floating platform base, a screw rod is installed between the shell and the fixed plate, and a bracket is installed above the scraper ring, the bracket is connected to the screw rod, and the scraper ring is driven to move by the bracket that can move up and down, so that the water plants and debris attached to the filter screen are cleaned by the scraper ring, which ensures that the water flows through the probe normally, and also avoids the situation where the water flows through the probe after being contaminated by garbage. At this time, the accuracy of the overall detection data is improved.

[0004] However, in actual use, the river water entering the top of the cylinder has poor fluidity, resulting in single water flow monitoring data around the sensor and many dead water conditions. When the water quality detector floats to the next detection point, the water flow cannot be disturbed, affecting the diversity and accuracy of the water quality detection data.

[0005] Therefore, the present invention proposes a floating water quality detector and a method of using the same to solve the problem that the traditional water quality detector has poor fluidity of river water entering the top of the tube, which leads to a single water flow monitoring data around the sensor, affecting the diversity and accuracy of the water quality detection data. The present invention can maintain the diversity and accuracy of the water quality detection data and ensure that when floating to the next detection point, the previously monitored water flow is disturbed to avoid the accumulation of dead water. Summary of the invention

[0006] The object of the present invention is to provide a floating water quality detector and a method of using the same to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a floating water quality detector comprises a buoy, the lower end of the buoy is fixedly connected to a square base, the outer surface of the square base is fixedly installed with a support arm, the upper end of the buoy is fixedly installed with a photovoltaic mounting frame, the center of the buoy is a hollow structure, the inner wall of the buoy is provided with a mounting hole, a composite water quality detection mechanism is arranged inside the mounting hole, the composite water quality detection mechanism comprises an external fixed detection column, a probe protection sleeve and an inner conical filter cover, the lower end outer surface of the external fixed detection column is provided with a large-aperture filter hole, the upper end of the external fixed detection column is fixedly installed with a loading ring plate, the interior of the loading ring plate is provided with a monitoring probe, the outside of the probe protection sleeve is provided with a live water disturbance component and an inner conical filter cover, the live water disturbance component comprises a connecting piece, a water guide piece and a mixing piece, the upper end of the probe protection sleeve is provided with a driving component, and the inner conical filter cover is movably mounted on the inner side of the external fixed detection column.

[0008] Preferably, a large-aperture filter hole and a slide groove are provided on the inner wall of the lower end of the external fixed detection column, the inner surface of the slide groove is slidably connected to a limiting slider, the limiting slider is fixedly installed on the outer annular surface of the lower end of the inner conical filter cover, and a threaded ring is fixedly installed on the upper end of the inner conical filter cover, and the inner surface of the threaded ring is threadedly connected to the outer surface of the threaded convex groove.

[0009] Preferably, the inner conical filter cover has a conical structure that is wide at the bottom and narrow at the top. The inner conical filter cover consists of a wide mouth and a narrow mouth. Filter holes are evenly opened on the inner wall of the inner conical filter cover. The filter holes gradually become smaller from the wide mouth to the narrow mouth. The maximum outer diameter of the inner conical filter cover is smaller than the inner diameter of the external fixed detection column.

[0010] Preferably, the driving assembly includes a driving motor and a limiting sleeve, the driving motor is fixedly mounted on the upper outer surface of the loading ring plate, the limiting sleeve is fixedly mounted on the lower surface of the loading ring plate, a center rod is fixedly connected to the output shaft of the driving motor, the outer surface of the center rod is rotatably connected to the inner wall of the loading ring plate, a driving gear is fixedly connected to the lower outer surface of the center rod, a driven gear ring is rotatably meshed on the outer surface of the driving gear, the central inner surface of the driven gear ring is fixedly connected to the upper outer surface of the probe protective sleeve, and the upper outer surface of the probe protective sleeve is movably connected to the central inner wall of the limiting sleeve.

[0011] Preferably, the connecting member includes a connecting cross arm, one end of the connecting cross arm is fixedly connected to the outer surface of the probe protection sleeve, an embedding groove is formed at the end of the connecting cross arm away from the probe protection sleeve, an embedding connecting rod is embedded and installed on the inner surface of the embedding groove, and one end of the connecting cross arm is fixedly connected to the upper end of the embedding connecting rod by a bolt.

[0012] Preferably, the water guiding member comprises an upper inclined plate and a lower inclined plate, the upper inclined plate and the lower inclined plate are an integrally formed structure, the upper end of the upper inclined plate is fixedly connected to the lower end of the embedded connecting rod, a diverter baffle is fixedly installed on the central inner side surface of the upper inclined plate, a focusing groove is formed between the two sides of the diverter baffle and the upper inclined plate, and a through hole is opened on the inner wall of the lower end of the upper inclined plate.

[0013] Preferably, a second diverter baffle is fixedly mounted on the central inner side surface of the lower inclined plate, and diverter grooves are formed between the two sides of the second diverter baffle and the inner side of the water guide member.

[0014] Preferably, the mixing element comprises a conical cylinder, both ends of the conical cylinder are respectively threadedly connected with a shaft rod, and the outer surface of the shaft rod is rotatably connected to the connecting cross arm and the inner wall of the second diversion partition respectively.

[0015] Preferably, a conical circumferential hole groove is opened on the inner wall of the upper outer ring of the conical cylinder, and the conical circumferential hole groove is provided in multiple groups and arranged in a circular array about the central axis of the conical cylinder, and a matching filter is provided on the inner wall of the outer ring of the lower end of the conical cylinder.

[0016] A method for using a floating water quality detector comprises the following steps: S1. Equipment installation: Install the floating water quality detector to the predetermined position, ensure that the sensor can fully contact the water body, and fix the device to prevent it from being washed away by the water flow. Place the floating water quality detector in the water area to be tested, ensure that it floats stably, then turn on the power of the detector and start the internal monitoring probe; S2. Water flow detection: When water flows through the detector, the composite filter structure formed by the external fixed detection column and the inner conical filter cover is used to reduce the water flow resistance and block the suspended matter, impurities and particles close to the sensor; S3. Equipment self-cleaning: Before or after the inspection, the controller starts the drive assembly to drive the live water disturbance assembly to rotate as a whole to ensure that the water flow is fully stirred.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a floating water quality detector and a method for using the same. The floating water quality detector adopts a composite filtering structure formed by combining an external fixed detection column and an internal conical filter cover, which can reduce the flow resistance of water passing through the external fixed detection column to meet the flow of water in each detection area, and can also block suspended matter, impurities, particulate matter, etc. near the monitoring probe to avoid direct contact with the monitoring probe and damage to it, thereby extending the service life. The probe protection sleeve and the live water disturbance component cooperate with each other to achieve water flow disturbance on the upper part of the external fixed detection column, increase water flow fluidity, and drive the internal conical filter cover to move and pump water flow, thereby achieving self-cleaning of the external fixed detection column and the internal conical filter cover, further solving the problem that the traditional water quality detector has poor fluidity of river water entering the top of the tube, resulting in single water flow monitoring data around the sensor, affecting the diversity and accuracy of water quality detection data. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a schematic diagram of the connection structure of the composite water quality detection mechanism of the present invention, the square base and the photovoltaic mounting frame; Figure 4 It is a schematic diagram of the cut-section structure of a single set of external fixed detection columns of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A; Figure 6 This is a schematic diagram of a half-section structure of an external fixation detection column of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B; Figure 8 For the present invention Figure 6 A schematic diagram of the enlarged structure at C; Fig. 9 For the present invention Figure 6 A schematic diagram of the structure at D of FIG. Fig.10 It is a schematic diagram of the disassembled structure of the active water disturbance assembly of the present invention; Fig.11 It is a schematic diagram of the disassembled structure of the water guide member and the connecting member of the present invention; Fig.12 It is a schematic structural diagram of the water guide member of the present invention.

[0018] In the figure: 1, buoy; 10, mounting hole; 11, square base; 111, support arm; 12, photovoltaic mounting frame; 2, composite water quality detection mechanism; 3, monitoring probe; 21, external fixed detection column; 211, loading ring plate; 210, large aperture filter hole; 2100, slide groove; 22, probe protection sleeve; 220, threaded convex groove; 221, connecting cross arm; 2210, embedded groove; 2211, embedded connecting rod; 222, water guide; 2221, upper inclined plate; 2222, lower inclined Plate; 22211, diverter baffle plate 1; 22212, focusing trough; 22213, through hole; 22221, diverter baffle plate 2; 22222, diverter trough; 223, conical cylinder; 2230, conical hole groove; 2231, shaft; 2232, matching filter; 23, driving motor; 231, center rod; 232, driving gear; 233, driven gear ring; 234, limiting sleeve; 24, inner conical filter cover; 240, filter hole; 241, threaded collar; 242, limiting slider. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0020] For example, see Figure 1-Figure 12 The present invention provides a technical solution: a floating water quality detector, comprising a buoy 1, a square base 11 is fixedly connected to the lower end of the buoy 1, a support arm 111 is fixedly installed on the outer surface of the square base 11, a photovoltaic mounting frame 12 is fixedly installed on the upper end of the buoy 1, the center of the buoy 1 is a hollow structure, a mounting hole 10 is opened through the inner wall of the buoy 1, a composite water quality detection mechanism 2 is arranged inside the mounting hole 10, and the composite water quality detection mechanism 2 includes an external fixed detection column 21, a probe protection sleeve 22 and an inner Conical filter cover 24, the outer surface of the lower end of the external fixed detection column 21 is provided with a large-aperture filter hole 210, the upper end of the external fixed detection column 21 is fixedly installed with a loading ring plate 211, the inside of the loading ring plate 211 is provided with a monitoring probe 3, the outside of the probe protection sleeve 22 is provided with a live water disturbance component and an inner conical filter cover 24, the live water disturbance component includes a connecting piece, a water guide 222 and a mixing piece, the upper end of the probe protection sleeve 22 is provided with a driving component, and the inner conical filter cover 24 is movably installed on the inner side of the external fixed detection column 21; In this embodiment, the floating water quality detector adopts a composite filtering structure formed by combining an external fixed detection column 21 and an internal conical filter cover 24, which can not only reduce the flow resistance of water passing through the external fixed detection column 21 and meet the flow of water in each detection area, but also block suspended matter, impurities, particulate matter, etc. near the monitoring probe 3 to avoid direct contact with the monitoring probe 3 and damage to it, thereby extending the service life. Through the mutual cooperation of the probe protection sleeve 22 and the active water disturbance component, the water flow disturbance on the upper part of the external fixed detection column 21 is realized to increase the fluidity of the water flow, and the internal conical filter cover 24 can be driven to move the water flow to achieve self-cleaning of the external fixed detection column 21 and the internal conical filter cover 24, further solving the problem that the traditional water quality detector has poor fluidity of the river water entering the top of the cylinder, resulting in a single water flow monitoring data around the sensor, affecting the diversity and accuracy of the water quality detection data; by connecting the square base 11 at the bottom of the buoy 1, it is to ensure the stability of the floating water quality monitoring and prevent the risk of tipping.

[0021] Embodiment 2, on the basis of embodiment 1, in order to realize that the external fixed detection column 21 allows water to flow through while reducing resistance and blocking impurities near the monitoring probe 3: a large-aperture filter hole 210 and a slide groove 2100 are opened on the inner wall of the lower end of the external fixed detection column 21, and the inner surface of the slide groove 2100 is slidably connected with a limit slider 242, and the limit slider 242 is fixedly installed on the outer annular surface of the lower end of the inner conical filter cover 24, and a threaded collar 241 is fixedly installed on the upper end of the inner conical filter cover 24, and the inner surface of the threaded collar 241 is threadedly connected with the outer surface of the threaded convex groove 220; the inner conical filter cover 24 has a conical structure that is wide at the bottom and narrow at the top, and the inner conical filter cover 24 is composed of a wide mouth and a narrow mouth. The inner wall of the inner conical filter cover 24 is evenly provided with filter holes 240, and the filter holes 240 gradually become smaller from the wide mouth to the narrow mouth, and the maximum outer diameter of the inner conical filter cover 24 is smaller than the inner diameter of the external fixed detection column 21; In this embodiment, a group of inner conical filter covers 24 are added on the inner side of the external fixed detection column 21 to form a composite filter structure with the external fixed detection column 21. The combination of the two optimizes the filter structure. When the monitoring probe 3 performs water quality detection, the water flow near the external fixed detection column 21 flows through the large-aperture filter hole 210, and the gradient aperture design set on the surface of the inner conical filter cover 24 reduces the flow resistance of the water flow away from the monitoring probe 3. The design of the inner conical filter cover 24 helps to reduce the separation of the water flow on the filter surface, thereby reducing the formation of vortices. Through reasonable aperture distribution and gradient design, the size and distribution of the vortex can be further controlled without affecting the circulation of the water flow, and can block impurities such as floating objects and microorganisms. The aperture of the filter hole 240 near the monitoring probe 3 gradually becomes smaller to prevent fine impurities from entering the vicinity of the sensor and causing damage, impact and adhesion to the monitoring probe 3, thereby further extending the service life and ensuring the accuracy of the water quality monitoring data.

[0022] Embodiment 3, on the basis of embodiment 2, in order to achieve the disturbance of the water flow in the cavity of the external fixed detection column 21, so as to avoid the singleness of the water quality detection data of each area: the driving component includes a driving motor 23 and a limiting sleeve 234, the driving motor 23 is fixedly mounted on the upper outer surface of the loading ring plate 211, the limiting sleeve 234 is fixedly mounted on the lower surface of the loading ring plate 211, the output shaft of the driving motor 23 is fixedly connected with a center rod 231, the outer surface of the center rod 231 is rotatably connected to the inner wall of the loading ring plate 211, the lower end outer surface of the center rod 231 is fixedly connected with a driving gear 232, the outer surface of the driving gear 232 is meshed and rotatably engaged with a driven gear ring 233, the central inner surface of the driven gear ring 233 is fixedly connected to the upper outer surface of the probe protection sleeve 22, and the upper outer surface of the probe protection sleeve 22 is movably connected to the central inner wall of the limiting sleeve 234; In this embodiment, before the monitoring probe 3 implements the detection operation or after the detection is completed, the water flow in the inner cavity of the external fixed detection column 21 is stirred. When it is necessary to drive the probe protection sleeve 22, the water guide member 222 and the mixing member to rotate as a whole, the controller controls the drive motor 23 to start, and its output shaft rotates and drives the center rod 231 and the driving gear 232 to rotate synchronously. At this time, the driving gear 232 is adapted to mesh with the driven gear ring 233. At this time, the probe protection sleeve 22 is rotated by the driving force, thereby realizing the rotation of the live water disturbance component as a whole; it is worth noting that the probe protection sleeve The outer surface of the bottom end of 22 is provided with a threaded convex groove 220 adapted to the inner conical filter cover 24. When the probe protection sleeve 22 rotates forward and reverse, the inner conical filter cover 24 is raised and lowered under the dual limiting action of the thread adaptation and the threaded ring 241 and the slide groove 2100, and can reciprocate the water flow inside the external fixed detection column 21, and the water flow is accelerated to impact the side wall of the external fixed detection column 21 and the attachments on the inner conical filter cover 24. The self-cleaning of the external fixed detection column 21 and the inner conical filter cover 24 further improves the accuracy of water quality detection of the monitoring probe 3.

[0023] Embodiment 4, on the basis of embodiment 3, in order to realize sufficient disturbance of the water flow in the inner cavity of the external fixed detection column 21 by the live water disturbance component and increase the flow performance of the water flow: the connecting member includes a connecting cross arm 221, one end of the connecting cross arm 221 is fixedly connected to the outer surface of the probe protection sleeve 22, and an embedding groove 2210 is provided at the end of the connecting cross arm 221 away from the probe protection sleeve 22, and an embedding connecting rod 2211 is embedded and installed on the inner surface of the embedding groove 2210, and one end of the connecting cross arm 221 is fixedly connected to the upper end of the embedding connecting rod 2211 by bolts; the water guide 222 includes an upper inclined plate 2221 and a lower inclined plate 2222, The inclined plate 2221 and the lower inclined plate 2222 are an integrally formed structure. The upper end of the upper inclined plate 2221 is fixedly connected to the lower end of the embedded connecting rod 2211. A diverter baffle 1 22211 is fixedly installed on the central inner side surface of the upper inclined plate 2221. A flow collecting groove 22212 is formed between the two sides of the diverter baffle 1 22211 and the upper inclined plate 2221. A through hole 22213 is formed on the inner wall of the lower end of the upper inclined plate 2221. A diverter baffle 22221 is fixedly installed on the central inner side surface of the lower inclined plate 2222. A diverter groove 22222 is formed between the two sides of the diverter baffle 22221 and the inner side of the water guide 222. In this embodiment, when the probe protection sleeve 22 is affected by the driving component to rotate, the connecting member drives the water guide member 222 and the mixing member to move synchronously. At this time, the water guide member 222 is connected to the embedded connecting rod 2211 through the connecting cross arm 221. The water guide member 222 here is composed of an upper inclined plate 2221 and a lower inclined plate 2222. The diverter baffle 22211 set in the center of the upper inclined plate 2221 gradually expands from the front end to the rear end. Figure 11-Figure 12 As shown, in order to allow the water flow that submerges the upper inclined plate 2221 to flow better through the focusing groove 22212, part of the water flow enters between the diversion grooves 22222 through the opening of the through hole 22213, and this part of the water flow impacts the inner side wall of the external fixed detection column 21 under the centrifugal force, thereby achieving self-cleaning of the side wall of the external fixed detection column 21, and part of the water flow will impact the outer wall of the probe protection sleeve 22 through the inclined surface of the focusing groove 22212, thereby achieving self-cleaning of the probe protection sleeve 22.

[0024] Embodiment 5, on the basis of embodiment 4, in order to accelerate the stirring performance of the water flow: the mixing element includes a conical cylinder 223, and the two ends of the conical cylinder 223 are respectively threadedly connected with a shaft 2231, and the outer surface of the shaft 2231 is respectively rotatably connected with the inner wall of the connecting cross arm 221 and the second diversion partition 22221; a conical circumferential hole groove 2230 is opened on the inner wall of the upper outer ring of the conical cylinder 223, and the conical circumferential hole groove 2230 is provided with multiple groups and arranged in a circular array about the central axis of the conical cylinder 223, and a matching filter screen 2232 is provided on the inner wall of the outer ring of the lower end of the conical cylinder 223; In this embodiment, a conical cylinder 223 is additionally provided between the connecting cross arm 221 and the water guiding member 222, and is connected to both ends of the conical cylinder 223 through an axis rod 2231. The water flowing on the flow collecting groove 22212 can also synchronously impact the conical cylinder 223, causing the conical cylinder 223 to rotate, thereby accelerating the disturbance of the water flow and avoiding the situation where the detection data is single when reaching the next detection point.

[0025] Embodiment 6: Based on Embodiment 5, the present invention further provides a method for using a floating water quality detector, comprising the following steps: S1. Equipment installation: Install the floating water quality detector to the predetermined position, ensure that the sensor can fully contact the water body, and fix the device to prevent it from being washed away by the water flow. Place the floating water quality detector in the water area to be tested, ensure that it floats stably, then turn on the power of the detector and start the internal monitoring probe 3; S2, water flow detection: When water flows through the detector, the composite filter structure formed by the external fixed detection column 21 and the inner conical filter cover 24 is used to reduce the water flow resistance and block the suspended matter, impurities and particles close to the sensor; S3. Equipment self-cleaning: Before or after the inspection, the controller starts the drive assembly to drive the live water disturbance assembly to rotate as a whole to ensure that the water flow is fully stirred.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating water quality detector, comprising a buoy (1), wherein the lower end of the buoy (1) is fixedly connected to a square base (11), a support arm (111) is fixedly mounted on the outer surface of the square base (11), and a photovoltaic mounting frame (12) is fixedly mounted on the upper end of the buoy (1), characterized in that: The center of the buoy (1) is a hollow structure. A mounting hole (10) is provided through the inner wall of the buoy (1). A composite water quality detection mechanism (2) is arranged inside the mounting hole (10). The composite water quality detection mechanism (2) comprises an external fixed detection column (21), a probe protection sleeve (22) and an inner conical filter cover (24). A large-aperture filter hole (210) is provided on the outer surface of the lower end of the external fixed detection column (21). A loading ring plate (211) is fixedly installed on the upper end of the external fixed detection column (21). A monitoring probe (3) is arranged inside the loading ring plate (211). A live water disturbance component and an inner conical filter cover (24) are arranged outside the probe protection sleeve (22). The live water disturbance component comprises a connecting piece, a water guide piece (222) and a mixing piece. A driving component is arranged at the upper end of the probe protection sleeve (22). The inner conical filter cover (24) is movably mounted on the inner side of the external fixed detection column (21).

2. A floating water quality detector according to claim 1, characterized in that: A large-diameter filter hole (210) and a slide groove (2100) are provided on the inner wall of the lower end of the external fixed detection column (21); the inner surface of the slide groove (2100) is slidably connected to a limit slider (242); the limit slider (242) is fixedly mounted on the outer annular surface of the lower end of the inner conical filter cover (24); a threaded collar (241) is fixedly mounted on the upper end of the inner conical filter cover (24); the inner surface of the threaded collar (241) is threadedly connected to the outer surface of the threaded convex groove (220).

3. A floating water quality detector according to claim 2, characterized in that: The inner conical filter cover (24) presents a conical structure that is wide at the bottom and narrow at the top. The inner conical filter cover (24) consists of a wide opening and a narrow opening. Filter holes (240) are evenly arranged on the inner wall of the inner conical filter cover (24). The filter holes (240) gradually become smaller from the wide opening to the narrow opening. The maximum outer diameter of the inner conical filter cover (24) is smaller than the inner diameter of the external fixed detection column (21).

4. A floating water quality detector according to claim 1, characterized in that: The drive assembly comprises a drive motor (23) and a limit sleeve (234); the drive motor (23) is fixedly mounted on the upper outer surface of the loading ring plate (211); the limit sleeve (234) is fixedly mounted on the lower surface of the loading ring plate (211); a center rod (231) is fixedly connected to the output shaft of the drive motor (23); the outer surface of the center rod (231) is rotatably connected to the inner wall of the loading ring plate (211); a driving gear (232) is fixedly connected to the lower outer surface of the center rod (231); a driven gear ring (233) is rotatably meshed with the outer surface of the driving gear (232); a central inner surface of the driven gear ring (233) is fixedly connected to the upper outer surface of the probe protection sleeve (22); and the upper outer surface of the probe protection sleeve (22) is movably connected to the central inner wall of the limit sleeve (234).

5. The floating water quality detector according to claim 1, characterized in that: The connecting member comprises a connecting cross arm (221), one end of the connecting cross arm (221) is fixedly connected to the outer surface of the probe protection sleeve (22), one end of the connecting cross arm (221) away from the probe protection sleeve (22) is provided with an embedding groove (2210), an embedding connecting rod (2211) is embedded and installed on the inner surface of the embedding groove (2210), and one end of the connecting cross arm (221) is fixedly connected to the upper end of the embedding connecting rod (2211) by means of bolts.

6. A floating water quality detector according to claim 1, characterized in that: The water guide member (222) comprises an upper inclined plate (2221) and a lower inclined plate (2222); the upper inclined plate (2221) and the lower inclined plate (2222) are an integrally formed structure; the upper end of the upper inclined plate (2221) is fixedly connected to the lower end of the embedded connecting rod (2211); a flow diversion baffle plate 1 (22211) is fixedly mounted on the central inner side surface of the upper inclined plate (2221); a flow converging groove (22212) is formed between the two sides of the flow diversion baffle plate 1 (22211) and the upper inclined plate (2221); and a through hole (22213) is formed on the inner wall of the lower end of the upper inclined plate (2221).

7. A floating water quality detector according to claim 6, characterized in that: A second flow diversion baffle plate (22221) is fixedly mounted on the central inner side surface of the lower inclined plate (2222), and a flow diversion groove (22222) is formed between the two sides of the second flow diversion baffle plate (22221) and the inner side of the water guide member (222).

8. A floating water quality detector according to claim 7, characterized in that: The mixing element comprises a conical cylinder (223), and both ends of the conical cylinder (223) are respectively threadedly connected to a shaft rod (2231), and the outer surface of the shaft rod (2231) is rotatably connected to the connecting cross arm (221) and the inner wall of the second flow dividing baffle (22221).

9. A floating water quality detector according to claim 8, characterized in that: The inner wall of the upper outer ring of the conical cylinder (223) is provided with a conical circumferential hole groove (2230), and the conical circumferential hole groove (2230) is provided in multiple groups and arranged in a circular array about the central axis of the conical cylinder (223), and a matching filter screen (2232) is provided on the inner wall of the lower outer ring of the conical cylinder (223).

10. A method for using a floating water quality detector, which is implemented based on the floating water quality detector according to claims 1-9, characterized in that: The method for using the floating water quality detector comprises the following steps: S1. Equipment installation: Install the floating water quality detector to the predetermined location, ensure that the sensor can fully contact the water body, and fix the device to prevent it from being washed away by the water flow. Place the floating water quality detector in the water area to be tested, ensure that it floats stably, then turn on the power of the detector and start the internal monitoring probe (3); S2, water flow detection: when water flows through the detector, the composite filter structure formed by the external fixed detection column (21) and the internal conical filter cover (24) is used to reduce the water flow resistance and block the suspended matter, impurities and particulate matter close to the sensor; S3. Equipment self-cleaning: Before or after the inspection, the controller starts the drive assembly to drive the live water disturbance assembly to rotate as a whole to ensure that the water flow is fully stirred.

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