A detection device for water conservancy construction site

Abstract

The application belongs to the technical field of water conservancy engineering detection, and particularly relates to a detection device for water conservancy construction sites, which comprises a sensor module, a floating plate, a float, a mounting cylinder, a sliding rod and a mounting seat. The bottom end of the mounting cylinder is connected with the float. The inside of the float is provided with the sensor module. The bottom end of the float is provided with a filter cylinder. The bottom end of the sensor module is arranged in the inside of the filter cylinder. The floating plate is slidingly sleeved on the outer wall of the filter cylinder. The inner wall of the floating plate is rotatably provided with a corrugated sleeve. The upper end of the corrugated sleeve is connected with the bottom wall of the float. One side of the floating plate is provided with a baffle. The inner wall of the baffle is rotatably provided with a roller. The outer wall of the float is provided with a guide groove. The guide groove extends upwardly and upwardly from the two bottom ends of the float and is communicated with the upper end of the float. The roller is slidingly matched in the guide groove. The whole device floats and detects with the drainage water level, and will not be washed away by the water flow and will not be hung with slag. The application is suitable for temporary, sudden or irregular drainage water quality detection.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy engineering testing technology, and in particular relates to a testing device for use at water conservancy construction sites. Background Technology

[0002] Hydrological monitoring of drainage is a crucial aspect of water conservancy construction. Open channels and drainage ditches need to be constructed within and around the construction site to divert natural runoff or construction wastewater. The core issue is the discharge of sediment and pollutants, which can potentially clog downstream waterways and pollute surrounding rivers and groundwater.

[0003] Within construction sites, for example, foundation pits excavated for building main structures such as sluice gates, pumping stations, and dam foundations will discharge wastewater containing sediment; similarly, construction wastewater (containing oil and concrete mixing water) and domestic sewage, if directly discharged into rivers, will severely pollute the surrounding waters. Therefore, hydrological monitoring is conducted on drainage in water conservancy projects. This includes testing for sediment content, turbidity / suspended solids (concentration), pH value, petroleum hydrocarbons, and chemical oxygen demand (COD).

[0004] Currently, floating water quality monitoring equipment is generally used for hydrological monitoring to measure hydrological, water quality, and meteorological parameters in lakes or watersheds in real time. This monitoring equipment, equipped with buoys, floats on the water surface and is typically powered by solar panels and high-capacity batteries. However, this type of floating water quality monitoring equipment is not suitable for open channels or drainage ditches because the drainage in these areas is unpredictable, irregular, and lacks a fixed water level; in fact, the water level may be almost zero when not draining. If the equipment is installed in the monitoring area before drainage begins and monitoring is started immediately, the sudden increase in drainage flow can wash the floating water quality monitoring equipment away with the current. Therefore, conventional floating water quality monitoring equipment is not applicable.

[0005] Furthermore, during the initial drainage phase, the water flow velocity gradually increases and stabilizes. A large amount of silt, sand, and solid debris is carried away immediately during this initial drainage. Large floating objects (such as construction waste, sawdust, and plastic bags) drift towards the hydrological monitoring equipment, potentially obstructing the sensors or monitoring modules and reducing the accuracy of the equipment. Installing the monitoring equipment after the drainage has stabilized would introduce measurement lag, and the limited drainage time (ranging from several hours each time) makes it impossible to guarantee a long monitoring period after equipment installation. Summary of the Invention

[0006] In view of the technical problems existing in the background art, the present invention provides a detection device for water conservancy construction sites.

[0007] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0008] A detection device for use at a water conservancy construction site includes a sensor module, a float, a pontoon, a mounting cylinder, a sliding rod, and a mounting base.

[0009] The mounting base spans the drainage ditch and is installed on the foundation on both sides of the drainage ditch, and the sliding rod is raised and lowered in the inner hole of the mounting base;

[0010] The bottom side of the slide bar is connected to an installation cylinder, the bottom end of the installation cylinder is connected to a float, a sensor module is installed inside the float, and the bottom end of the sensor module extends to the bottom side of the float; a filter cylinder is installed at the bottom end of the float, and the bottom end of the sensor module is installed inside the filter cylinder.

[0011] The float plate is slidably sleeved on the outer wall of the filter cylinder, and the inner wall of the float plate is rotatably provided with a corrugated sleeve. The upper end of the corrugated sleeve is connected to the bottom wall of the float cylinder, and the corrugated sleeve is provided on the outer side of the filter cylinder.

[0012] A ring-shaped baffle is provided on one side of the float plate, and the baffle is attached to the outer wall of the float. A roller is rotatably provided on the inner wall of the baffle. A guide groove is provided on the outer wall of the float, and the guide groove extends obliquely upward from the bottom ends of both sides of the float and connects to the upper end of the float. The roller is slidably engaged in the guide groove.

[0013] When the drainage ditch is not draining, the float and float plate descend by their own weight and are at a fixed distance from the bottom of the drainage ditch. The roller descends to a low position along the guide groove, so that the corrugated sleeve is fitted on the outside of the filter cylinder for protection, and the baffle faces the direction of the incoming water.

[0014] When the drainage ditch is draining water, the float and the float plate float up by buoyancy, and the roller rises to a high position along the guide groove, causing the float plate and the baffle to rotate and rise to expose the filter cylinder.

[0015] Optionally, the outer side of the baffle is evenly distributed with several vertically arranged blades.

[0016] Optionally, the guide groove is configured as an inverted "V" shape, the guide groove extends circumferentially and covers half of the circumference of the pontoon; the trajectory of the guide groove is high in the middle and low at both ends in the circumferential direction of the pontoon; and in the top view, the central angle between the lowest point at both ends and the highest point in the middle of the guide groove is 90 degrees.

[0017] Optionally, the outer wall of the mounting cylinder is provided with a number of solar panels.

[0018] Optionally, the mounting cylinder is a conical hexagonal prism, in which three solar panels are installed on the outer walls of the three prisms, with adjacent solar panels installed at intervals. A fixing plate is provided on the outer wall of the prism between two solar panels, and the two sides of the fixing plate are bent outward and extended to fit and fix to the outer frame of the solar panel.

[0019] Optionally, the upper end of the float tapers inward to form a connecting part, the outer wall of the connecting part is provided with external threads, the inner wall of the bottom end of the mounting cylinder is provided with internal threads, and the mounting cylinder is threadedly connected to the connecting part.

[0020] Optionally, the float has an installation cavity and an annular cavity from the inside to the outside, and an annular positioning step is provided at the bottom end of the float; a limit ring is provided at the upper end of the filter cylinder, and the limit ring is provided on the positioning step.

[0021] Optionally, the detection device for water conservancy construction sites further includes a solar panel charge / discharge controller, a battery, a data acquisition unit, and a control system. The solar panel is electrically connected to the solar panel charge / discharge controller, and the solar panel charge / discharge controller is electrically connected to the battery. The sensor module is electrically connected to the data acquisition unit, and the data acquisition unit is electrically connected to the battery. The data acquisition unit is connected to the control system via a wireless module.

[0022] Optionally, the sensor module is cylindrical, with its upper end threadedly connected to the connecting cylinder. The upper end of the connecting cylinder is provided with a top ring, and the bottom end of the top ring is connected to a bottom ring through several connecting posts. The sensor module passes through the bottom ring and extends into the filter cartridge. The bottom ring is tightly attached to the limiting ring. A clamping cylinder is provided on the upper side of the mounting cavity of the float, and the bottom end of the clamping cylinder clamps the top ring. The data acquisition unit is located on the upper end face of the top ring and inside the clamping cylinder. A positioning frame is provided on the upper end of the clamping cylinder, and the battery is located inside the positioning frame and fixed by a pressure plate. The solar panel charge and discharge controller is located on the pressure plate, and the solar panel charge and discharge controller and the battery are located inside the mounting cylinder.

[0023] Optionally, the upper end of the baffle is provided with a collar, which is slidably disposed on the outer wall of the float.

[0024] The present invention has the following advantages and beneficial effects:

[0025] The detection device is pre-installed in the detection area (drainage ditch, canal) to conduct detection immediately during drainage, avoiding detection delays. Through a special structural design, the float plate and buoy allow the entire device to float and detect as the drainage water level rises. The entire device can be raised and lowered, preventing it from being washed away by the water flow. It is suitable for temporary, sudden, or irregular drainage water quality detection.

[0026] The side baffle design ensures that when the drainage channel is not draining, the floats and float plates descend under their own weight, maintaining a fixed distance from the bottom of the drainage channel to avoid contact with silt and other impurities. Simultaneously, the corrugated sleeve protects the outside of the filter cartridge, providing accurate and reliable protection for sensors and the filter cartridge not in use when drainage is not underway. When drainage begins, the baffle faces the direction of the incoming water. Larger floating debris (such as construction waste, sawdust, and plastic bags) carried by the water flow towards the hydrological monitoring equipment is blocked by the baffle, with most impurities flowing away from both sides, preventing debris from accumulating on the floats and float plates. Simultaneously, as the drainage water level increases, the float plates gradually rise, causing the float plates and baffles to rotate and rise, exposing the filter cartridge for water quality testing. Furthermore, as the baffle rotates and rises, some debris clinging to the outside of the float plates can be rotated to the other side, allowing the debris on the baffle to rotate at an angle and easily detach from the baffle under the continuous impact of the water flow, ensuring the removal of debris and preventing it from clinging to the filter cartridge and affecting the testing.

[0027] After the float plate rises to its position, under the continuous impact of the water flow, due to the structure of the guide channel, the float plate can make a short-distance descent when subjected to water force. After the water force decreases, it can be reset by buoyancy, allowing the float plate to perform a reciprocating motion of rising and falling. During the rising, falling and rotating process of the float plate, it can continuously clean the surface of the filter cartridge and prevent the filter cartridge from clogging. At the same time, the continuous rotation can ensure the removal of slag on the surface of the baffle and ensure the detection effect. Attached Figure Description

[0028] Figure 1 This is one of the structural diagrams of the detection device of the present invention when it is installed on a drainage ditch and not draining water;

[0029] Figure 2 This is the second structural diagram of the detection device of the present invention when it is installed on a drainage ditch and the water is not drained;

[0030] Figure 3 This is a front view of the detection device of the present invention installed on a drainage ditch when the water is not drained.

[0031] Figure 4 This is one of the structural diagrams of the detection device of the present invention;

[0032] Figure 5 This is a cross-sectional view of the detection device of the present invention;

[0033] Figure 6 This is a structural diagram of the detection device of the present invention installed on a drainage ditch during drainage;

[0034] Figure 7 This is a front view of the detection device of the present invention installed on a drainage ditch during drainage;

[0035] Figure 8 This is a front view of the detection device of the present invention;

[0036] Figure 9 for Figure 8 A cross-sectional view along the AA direction;

[0037] Figure 10 This is the second structural diagram of the detection device of the present invention;

[0038] Figure 11 This is the third structural diagram of the detection device of the present invention;

[0039] Figure 12 This is an assembly diagram of the sensor module, filter cartridge, battery, and other components of the present invention.

[0040] Figure 13 for Figure 12 Rear view;

[0041] Figure 14 This is an assembly diagram of the sensor module, battery, and other components of the present invention;

[0042] Figure 15 This is one of the structural diagrams of the float and baffle of the present invention;

[0043] Figure 16 This is the second structural diagram of the float and baffle of the present invention;

[0044] Figure 17 This is a front view of the float and baffle of the present invention;

[0045] Figure 18 for Figure 17 The left view.

[0046] Reference numerals: 1-Drainage ditch, 11-Embedded screw, 12-Mounting base, 13-Guide cylinder, 2-Sliding rod, 21-Limiting block, 22-Spring, 23-Limiting convex strip, 24-Connecting flange, 25-First bolt, 3-Mounting cylinder, 4-Float, 41-Guide groove, 42-Positioning step, 43-Connecting part, 44-Filter cylinder, 441-Limiting ring, 45-Strip filter hole, 46-Mounting cavity, 47-Cavity, 5-Solar panel, 51-Outer frame, 52-Fixing plate, 53-Second bolt, 54 6-Fixing screw, 6-Float plate, 61-Weight reduction groove, 62-Center hole, 63-Corrugated sleeve, 64-Rotating ring, 65-Rotating groove, 66-Mounting hole, 7-Baffle, 71-Blade, 72-Collar ring, 8-Sensor module, 81-Data acquisition unit, 82-Battery, 83-Solar panel charge / discharge controller, 84-Pressure cylinder, 841-Positioning frame, 842-Pressure plate, 843-Locking screw, 85-Connecting cylinder, 851-Top ring, 852-Connecting column, 853-Bottom ring, 9-Roller. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0048] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0049] Example

[0050] like Figures 1 to 18 As shown, a detection device for use at a water conservancy construction site includes a sensor module 8, a float plate 6, a float cylinder 4, a mounting cylinder 3, a sliding rod 2, and a mounting base 12. This detection device is mainly used for installation on drainage ditches and gullies, and is suitable for temporary, sudden, or irregular drainage water quality detection.

[0051] like Figures 1 to 7 As shown, the mounting base 12 is U-shaped, spans the drainage ditch 1 and is installed on the foundation on both sides of the drainage ditch 1. The sliding rod 2 is installed in the inner hole of the mounting base 12 for lifting and lowering.

[0052] like Figure 1 As shown, pre-embedded screws 11 are pre-installed in the concrete foundation on both sides of the drainage ditch 1. The two ends of the mounting base 12 pass through the pre-embedded screws 11 and are locked with nuts to achieve the installation and fixation of the mounting base 12.

[0053] like Figures 1 to 7 As shown, a mounting cylinder 3 is connected to the bottom side of the slide rod 2. Specifically, a connecting flange 24 is provided on the bottom side of the slide rod 2. The connecting flange 24 is close to the upper end face of the mounting cylinder 3, and the two are detachably connected by a first bolt 25 passing through the mounting cylinder 3 and the connecting flange 24.

[0054] like Figures 1 to 7 As shown, the bottom end of the mounting cylinder 3 is connected to the float 4, and the float 4 is equipped with a sensor module 8. The bottom end of the sensor module 8 extends to the bottom side of the float 4. The bottom end of the float 4 is equipped with a filter cylinder 44, and the filter cylinder 44 has several vertically arranged strip filter holes 45 evenly distributed around its circumference. The bottom end of the sensor module 8 is located inside the filter cylinder 44.

[0055] like Figures 1 to 7As shown, symmetrical limiting protrusions 23 are provided on both sides of the slide rod 2, and a limiting block 21 is provided at the upper end of the slide rod 2. A spring 22 is sleeved on the outer side of the slide rod 2, and the bottom end of the spring 22 is supported on the upper end surface of the mounting base 12. A guide cylinder 13 is provided on the middle bottom side of the mounting base 12. The inner wall of the guide cylinder 13 has a groove corresponding to the limiting protrusions 23. The limiting protrusions 23 are used to guide the slide rod 2 during lifting and lowering, preventing it from rotating. Figure 3 As shown, when the entire device is installed by its own weight, the bottom end of the limiting block 21 is in close contact with the spring 22, and the entire device is suspended in the air by the spring 22. At this time, the bottom side of the float 6 and the drainage ditch 1 have a fixed distance to prevent the device from touching the bottom.

[0056] like Figures 1 to 18 As shown, the float plate 6 is slidably sleeved on the outer wall of the filter cylinder 44, and the inner wall of the float plate 6 is rotatably provided with a corrugated sleeve 63. The upper end of the corrugated sleeve 63 is connected to the bottom wall of the float cylinder 4, and the corrugated sleeve 63 is located on the outer side of the filter cylinder 44. The float plate 6 can move up and down relative to the filter cylinder 44.

[0057] like Figure 5 , Figure 16 As shown, a rotating ring 64 is provided on the bottom side of the corrugated sleeve 63, and a central hole 62 is provided in the middle of the float 6. A rotating groove 65 is provided on the inner wall of the central hole 62, and the rotating ring 64 is rotatably disposed in the rotating groove 65, realizing the rotatable connection between the corrugated sleeve 63 and the float 6. A positioning step 42 is provided on the bottom side of the float 4, and the upper end of the corrugated sleeve 63 is fixedly connected to the positioning step 42.

[0058] like Figure 16 As shown, several weight-reducing grooves 61 are evenly distributed around the circumference of the float plate 6 to reduce the weight of the float plate 6. At the same time, the float plate 6 is hollowed out. Since the float plate 6 is submerged in water during water quality testing, the weight-reducing grooves 61, in conjunction with the lifting and lowering movement of the float plate 6, can reduce the accumulation of debris on the float plate 6.

[0059] like Figures 1 to 18 As shown, a ring-shaped baffle 7 is provided on one side of the float plate 6. The baffle 7 is attached to the outer wall of the float 4. An installation hole 66 is provided on the upper part of the baffle 7. A roller 9 is rotatably installed in the installation hole 66. A guide groove 41 is provided on the outer wall of the float 4. The guide groove 41 extends obliquely upward from the bottom ends of both sides of the float 4 and connects to the upper end of the float 4. The roller 9 is slidably engaged in the guide groove 41.

[0060] like Figures 1-5 As shown, when drainage ditch 1 is not draining water ( Figure 1 and Figure 2(The arrows indicate the direction of water flow). The float 4 and float plate 6 descend by their own weight, maintaining a fixed distance from the bottom of the drainage channel 1. The roller 9 descends along the guide groove 41 to its lowest position, so that the corrugated sleeve 63 is fitted onto the outside of the filter cylinder 44 for protection, and the baffle 7 faces the direction of the incoming water. In other words, before drainage, it is necessary to ensure that the baffle 7 is installed in place and faces the direction of the incoming water to achieve the operation of blocking debris (floating objects, etc.).

[0061] like Figure 6 , Figure 7 and Figure 12 As shown, when the drainage channel 1 drains water, as the water level rises, the float 4 and float plate 6 float up by buoyancy, and the roller 9 rises to a high position along the guide groove 41, causing the float plate 6 and baffle 7 to rotate and rise to expose the filter cylinder 44, exposing the strip filter holes 45. Water enters the filter cylinder 44 so that the internal sensor module 8 can perform water quality detection.

[0062] Pre-installing the detection device in the detection area (drainage ditch, canal) allows for immediate detection during drainage, avoiding detection delays. Through a special structural design, the float plate 6 and float cylinder 4 enable the entire device to float and detect as the drainage water level rises. The entire device can be raised and lowered, preventing it from being washed away by the water flow. It is suitable for temporary, sudden, or irregular drainage water quality detection.

[0063] The design of the side baffle 7 allows the float 4 and float plate 6 to descend by their own weight and maintain a fixed distance from the bottom of the drainage channel 1 when the drainage channel 1 is not draining, thus avoiding contact with silt and other impurities at the bottom of the drainage channel 1. At the same time, the corrugated sleeve 63 is fitted on the outside of the filter cylinder 44 for protection, providing accurate and reliable protection for the sensor and filter cylinder 44 that are not in use when the drainage is not draining. When drainage begins, baffle 7 faces the direction of the incoming water. Large floating objects (such as construction waste, sawdust, plastic bags, etc.) are carried by the water flow towards the hydrological monitoring equipment and are blocked by baffle 7. Most of the impurities flow away from both sides of baffle 7, preventing debris from getting stuck on float 4 and float plate 6. At the same time, as the drainage water level increases, float plate 6 gradually rises, causing float plate 6 and baffle 7 to rotate and rise, exposing filter cylinder 44 for water quality testing. This ensures that debris is removed during the initial drainage before testing begins. Furthermore, when baffle 7 rotates and rises, some debris (such as aquatic plants that are easily caught) on the outside of float plate 6 can be rotated to the other side. This allows for adjustment of the angle of debris on baffle 7, and under the continuous impact of the water flow, it is easy for the debris to detach from baffle 7, ensuring the removal of debris and preventing it from getting stuck on filter cylinder 44 and affecting the testing.

[0064] After the float plate 6 rises to its position, under the continuous impact of the water flow, due to the structure of the guide channel 41 (one section is inclined to rise and the other is inclined to descend), the float plate 6 can make a short-distance descent movement when subjected to water force impact. After the water force impact decreases, it can be reset by buoyancy, so that the float plate 6 as a whole can make a reciprocating motion of rising and falling. During the rising, falling and rotating process of the float plate 6, the float plate 6 can continuously clean the surface of the filter cylinder 44 and avoid the filter cylinder 44 from clogging. At the same time, the continuous rotation can ensure the removal of slag on the surface of the baffle 7 and ensure the detection effect.

[0065] Furthermore, several vertically arranged blades 71 are evenly distributed on the outer side of the baffle 7. For example... Figure 6 and Figure 7 As shown, the blade 71 is designed so that after the baffle 7 rotates to a fixed angle, the water flow impact direction can directly act on the blade 71, thereby efficiently driving the baffle 7 to rotate to a certain angle, causing the baffle 7 to rotate and descend, and then rise and reset by buoyancy. This allows the baffle 7 to rotate under the impact of water flow and buoyancy during drainage, ensuring efficient removal of slag on its outer side and scraping of the outer wall of the filter cartridge 44 by raising and lowering, reducing the clogging of the filter cartridge 44.

[0066] Furthermore, a collar 72 is provided at the upper end of the baffle 7. The collar 72 is slidably disposed on the outer wall of the float 4, which further enhances the limiting of the float 6 and the baffle 7, and ensures that the float 6 and the baffle 7 rotate and rise along the outer wall of the float 4.

[0067] like Figures 1 to 18 As shown, in this invention, the guide groove 41 is configured as an inverted "V" shape, which is an arc-shaped groove. The guide groove 41 extends circumferentially and covers half of the circumference of the float 4. The trajectory of the guide groove 41 is high in the middle and low at both ends in the circumferential direction of the float 4. Moreover, in the top view, the central angle between the lowest point at both ends and the highest point in the middle of the guide groove 41 is 90 degrees. That is to say, when the float 6 rises to the highest position by buoyancy, the float 6 and the baffle 7 have rotated 90 degrees.

[0068] The weight of float plate 6 and baffle plate 7 is much less than that of components such as float cylinder 4, solar panel 5, and mounting cylinder 3. When the bottom of float cylinder 4 is not in contact with the liquid surface, the rising water level first contacts float plate 6. During this process of float plate 6 rising due to buoyancy, components such as float cylinder 4, solar panel 5, and mounting cylinder 3 remain stationary, while roller 9 climbs along a section of guide groove 41. When float plate 6 reaches its position, it is restricted to the highest point of guide groove 41 and cannot rise further, while the water level continues to rise until it submerges float plate 6. When the water level continues to rise, it finally contacts the bottom of float cylinder 4, causing float cylinder 4 to float. While float cylinder 4 is floating in the water, the bottom float plate 6 has a tendency to rise due to buoyancy, but it is completely submerged. Therefore, in this situation, when the blades 71 of baffle plate 7 are impacted by the water flow, float plate 6 and baffle plate 7 rotate and descend. After the water flow impact decreases, they can immediately rotate and rise back to their original positions due to buoyancy. This structure is particularly suitable for high-velocity drainage. During the drainage process, the float 6 and baffle 7 can rotate and rise with the impact of the water flow, achieving efficient removal of sludge and self-cleaning of the filter cartridge 44.

[0069] like Figures 1 to 18 As shown, the outer wall of the mounting cylinder 3 is equipped with several solar panels 5, which provide energy for the entire device.

[0070] like Figures 1 to 18 As shown, in this invention, the mounting cylinder 3 is a conical hexagonal prism, wider at the bottom than at the top. Three solar panels 5 are mounted on the outer walls of the three prisms, spaced apart from each other. A fixing plate 52 is provided on the outer wall of the prism between two solar panels 5. The fixing plate 52 is fixed by a second bolt 53, which passes through both the fixing plate 52 and the mounting cylinder 3, enabling a detachable connection between them. The two sides of the fixing plate 52 bend outwards and are fixed to the outer frame 51 of the solar panel 5. A fixing screw 54 is welded to the outer wall of the outer frame 51, passing through the inner hole of the fixing plate 52 and locked with a nut, thus achieving a detachable connection between the solar panel 5 and the fixing plate 52.

[0071] like Figure 9 As shown, the upper end of the float 4 tapers inward to form a connecting part 43. The outer wall of the connecting part 43 is provided with external threads, and the inner wall of the bottom end of the mounting cylinder 3 is provided with internal threads. The mounting cylinder 3 is threadedly connected to the connecting part 43.

[0072] like Figure 5 , Figure 9 and Figure 13 As shown, the float 4 has an installation cavity 46 and an annular cavity 47 from the inside to the outside. The bottom end of the float 4 is provided with an annular positioning step 42. The upper end of the filter cylinder 44 is provided with a limit ring 441, which is set on the positioning step 42 to realize the installation of the filter cylinder 44.

[0073] like Figures 1 to 18 As shown, the detection device used at a water conservancy construction site in this invention also includes a solar panel charge / discharge controller 83, a battery 82, a data acquisition unit 81, and a control system. The solar panel 5 is electrically connected to the solar panel charge / discharge controller 83, and the solar panel charge / discharge controller 83 is electrically connected to the battery 82. The sensor module 8 is electrically connected to the data acquisition unit 81, and the data acquisition unit 81 is electrically connected to the battery 82. The data acquisition unit 81 is connected to the control system via a wireless module. The control system is located in the external environment and is set separately from the detection device body.

[0074] Sensor module 8 is the core component of water quality analysis, responsible for measuring parameters of different water qualities, such as dissolved oxygen, pH value, and turbidity. When selecting a sensor, it is necessary to choose one that is suitable for the measured indicators. Sensor module 8 is used to accurately sense and convert these parameters into electrical signals.

[0075] The data acquisition unit 81 is responsible for collecting the data acquired by the sensor module 8 and performing digital processing. It can acquire the measurement results of various parameters in real time and convert them into computer-readable data.

[0076] The control system is the brain of water quality analysis, responsible for managing the entire analysis process. It can set the sampling frequency, control sensor operation, and coordinate the work of other components.

[0077] like Figures 1 to 18 As shown, in this invention, the sensor module 8 is cylindrical, with its upper end threadedly connected to the connecting cylinder 85. A top ring 851 is provided at the upper end of the connecting cylinder 85, and the bottom end of the top ring 851 is connected to a bottom ring 853 via several connecting posts 852. The sensor module 8 passes through the bottom ring 853 and extends into the filter cartridge 44, with the bottom ring 853 tightly abutting the limiting ring 441. A clamping cylinder 84 is provided on the upper side of the mounting cavity 46 of the float 4, and the clamping cylinder 84 is threadedly connected to the inner wall of the float 4. The bottom end of the clamping cylinder 84 clamps the top ring 851, thereby completing the clamping and fixing of the bottom filter cartridge 44. The data acquisition unit 81 is located on the upper end face of the top ring 851 and inside the clamping cylinder 84, achieving a compact installation. A positioning frame 841 is provided at the upper end of the clamping cylinder 84. The battery 82 is placed inside the positioning frame 841 and fixed by the pressure plate 842. Locking screws 843 are inserted through both sides of the pressure plate 842 and are threadedly connected to the positioning frame 841. The solar panel charge and discharge controller 83 is set on the pressure plate 842. The solar panel charge and discharge controller 83 and the battery 82 are located inside the mounting cylinder 3 to achieve compact installation.

[0078] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A testing device for use at a water conservancy construction site, characterized in that: Includes sensor modules, floats, pontoons, mounting cylinders, slide bars, and mounting bases. The mounting base spans the drainage ditch and is installed on the foundation on both sides of the drainage ditch, and the sliding rod is raised and lowered in the inner hole of the mounting base; The bottom side of the slide bar is connected to an installation cylinder, the bottom end of the installation cylinder is connected to a float, a sensor module is installed inside the float, and the bottom end of the sensor module extends to the bottom side of the float; a filter cylinder is installed at the bottom end of the float, and the bottom end of the sensor module is installed inside the filter cylinder. The float plate is slidably sleeved on the outer wall of the filter cylinder, and the inner wall of the float plate is rotatably provided with a corrugated sleeve. The upper end of the corrugated sleeve is connected to the bottom wall of the float cylinder, and the corrugated sleeve is provided on the outer side of the filter cylinder. A ring-shaped baffle is provided on one side of the float plate, and the baffle is attached to the outer wall of the float. A roller is rotatably provided on the inner wall of the baffle. A guide groove is provided on the outer wall of the float, and the guide groove extends obliquely upward from the bottom ends of both sides of the float and connects to the upper end of the float. The roller is slidably engaged in the guide groove. When the drainage ditch is not draining, the float and float plate descend by their own weight and are at a fixed distance from the bottom of the drainage ditch. The roller descends to a low position along the guide groove, so that the corrugated sleeve is fitted on the outside of the filter cylinder for protection, and the baffle faces the direction of the incoming water. When the drainage ditch is draining water, the float and the float plate float up by buoyancy, and the roller rises to a high position along the guide groove, causing the float plate and the baffle to rotate and rise to expose the filter cylinder.

2. The detection device for water conservancy construction sites according to claim 1, characterized in that: The outer side of the baffle is evenly distributed with several vertically arranged blades.

3. The detection device for water conservancy construction sites according to claim 1, characterized in that: The guide groove is configured as an inverted "V" shape, and the guide groove extends circumferentially and covers half of the circumference of the pontoon; the trajectory of the guide groove is high in the middle and low at both ends in the circumferential direction of the pontoon; and in the top view, the central angle between the lowest point at both ends and the highest point in the middle of the guide groove is 90 degrees.

4. The detection device for water conservancy construction sites according to claim 2, characterized in that: The outer wall of the mounting cylinder is equipped with several solar panels.

5. The detection device for water conservancy construction sites according to claim 4, characterized in that: The mounting cylinder is a conical hexagonal prism, with three solar panels installed on the outer walls of the three prisms. Adjacent solar panels are installed at intervals. A fixing plate is provided on the outer wall of the prism between two solar panels. The two sides of the fixing plate are bent outward and extended to fit and fix to the outer frame of the solar panel.

6. The detection device for water conservancy construction sites according to claim 4, characterized in that: The upper end of the float tapers inward to form a connecting part. The outer wall of the connecting part has external threads, and the inner wall of the bottom end of the mounting cylinder has internal threads. The mounting cylinder is threadedly connected to the connecting part.

7. The detection device for water conservancy construction sites according to claim 4, characterized in that: The float has an installation cavity and an annular cavity from the inside out. The bottom end of the float is provided with an annular positioning step. The upper end of the filter cylinder is provided with a limiting ring, which is located on the positioning step.

8. The detection device for water conservancy construction sites according to claim 7, characterized in that: It also includes a solar panel charge / discharge controller, a battery, a data acquisition unit, and a control system. The solar panel is electrically connected to the solar panel charge / discharge controller, and the solar panel charge / discharge controller is electrically connected to the battery. The sensor module is electrically connected to the data acquisition unit, and the data acquisition unit is electrically connected to the battery. The data acquisition unit is connected to the control system via a wireless module.

9. The detection device for water conservancy construction sites according to claim 8, characterized in that: The sensor module is cylindrical, with its upper end threadedly connected to the connecting cylinder. A top ring is located at the upper end of the connecting cylinder, and the bottom end of the top ring is connected to a bottom ring via several connecting posts. The sensor module passes through the bottom ring and extends into the filter cartridge, with the bottom ring tightly abutting the limiting ring. A clamping cylinder is located on the upper side of the mounting cavity of the float, with its bottom end clamping the top ring. The data acquisition unit is located on the upper surface of the top ring and inside the clamping cylinder. A positioning frame is located at the upper end of the clamping cylinder, and the battery is located inside the positioning frame and fixed by a pressure plate. The solar panel charge / discharge controller is located on the pressure plate, and the solar panel charge / discharge controller and the battery are located inside the mounting cylinder.

10. The detection device for water conservancy construction sites according to claim 1, characterized in that: The upper end of the baffle is provided with a collar, which is slidably disposed on the outer wall of the float.

Images