Fixed float type water level monitoring device

Abstract

The invention discloses a fixed buoy type water level monitoring device which comprises a buoy, the buoy is sleeved with a protective barrel in a sliding mode, a base is fixedly arranged at the bottom end of the protective barrel, a steel wire rope is fixed to the center of the bottom end of the buoy, a protective pipe is arranged on the side face of the base in a communicating mode, and multiple sets of pulleys are arranged on the inner wall of the protective pipe. The steel wire rope is sequentially wound and connected to the surfaces of the multiple sets of pulleys, and the other end of the steel wire rope is hinged to a lever device. The whole device is a fixed mechanical device, after the protective cylinder is fixed through the pouring base, the whole structure does not need to additionally move and rotate and is not prone to damage, construction of buildings such as a vertical shaft is not needed, the influence of external environmental factors is small, stability of monitoring data is facilitated, and by means of the pulley structure and the lever amplification principle, the stability of the monitoring data is improved. The tension sensor is arranged at the other end of the lever device, and a lever amplifies a tension signal by multiple times and transmits the tension signal to the tension sensor, so that tiny water level change is monitored.

Description

Technical Field

[0001] This invention relates to the field of water level monitoring devices, and more specifically, to a fixed float-type water level monitoring device. Background Technology

[0002] Current water level monitoring methods typically utilize sensors or devices such as radar water level gauges, ultrasonic water level gauges, and float water level gauges to measure water levels.

[0003] Existing detection technologies mostly use electronic sensors for water level measurement. Among them, ultrasonic water level gauges are greatly affected by temperature and humidity and require regular maintenance; radar water level gauges have strict installation requirements, with specific requirements for installation height and location, and obstacles and floating objects have a significant impact on the measurement; float water level gauges require the construction of dedicated logging wells, which is costly, and floating impurities such as water flow affect the measurement data of float water level gauges. Furthermore, because float water level gauges have a sliding structure, the mechanism suffers severe wear after long-term use, requiring regular maintenance, which incurs high labor and economic costs. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a fixed pontoon-type water level monitoring device. As the entire device is a fixed mechanical device, after the protective cylinder is fixed in place by the cast-in-place base, the overall structure does not require additional movement or rotation, is not easily damaged, and does not require the construction of shafts or other structures. It is minimally affected by external environmental factors, which is beneficial to the stability of monitoring data, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixed float-type water level monitoring device, comprising a float, a protective cylinder being slidably fitted on the outside of the float, a magnetic ring being embedded in the outer and inner walls of the float and the protective cylinder, a base being fixedly provided at the bottom end of the protective cylinder, a steel wire rope being fixed at the center of the bottom end of the float, a protective tube being provided on the side of the base, a plurality of pulleys being provided on the inner wall of the protective tube, the steel wire rope being sequentially wound and connected to the surface of the plurality of pulleys, a lever device being hinged to the other end of the steel wire rope, a tension sensor being provided at the other end of the lever device, and a data acquisition device being connected to the other end of the tension sensor via a cable; A sleeve is fixedly connected to the bottom end of the pontoon. Multiple partition plates are evenly distributed circumferentially on the inner wall of the sleeve. Multiple openings are provided on the outer side of the bottom end of the protective cylinder. A guide surface is formed on the inner wall of the sleeve. A transition surface is seamlessly connected to the top end of the guide surface. An arc-shaped surface is connected to the other end of the transition surface. The overall trajectory of the guide surface is a straight surface. Both the transition surface and the arc-shaped surface are arc-shaped. The arc-shaped concavity directions of the transition surface and the arc-shaped surface are opposite. The concavity direction of the transition surface points obliquely upward, and the concavity direction of the arc-shaped surface points obliquely downward.

[0006] In a preferred embodiment, the two magnetic rings are spaced apart, and the magnetic poles of the two magnetic rings are distributed in a state of opposite repulsion.

[0007] In a preferred embodiment, the buoy and the protective cylinder are fitted with a clearance, and both the buoy and the protective cylinder are made of corrosion-resistant material.

[0008] In a preferred embodiment, the opening is located at the bottom end of the pontoon.

[0009] In a preferred embodiment, the top end of the sleeve is provided with an opening.

[0010] In a preferred embodiment, the surfaces of the guide surface, transition surface, and arc-shaped surface are all smooth, and the tail end of the arc-shaped surface is in close contact with the bottom end surface of the float.

[0011] The technical effects and advantages of this invention are as follows: (1) The present invention is a fixed mechanical device. After the protective cylinder is fixed in the casting base, the overall structure does not need to be moved or rotated, is not easily damaged, and does not require the construction of shafts or other buildings. It is less affected by external environmental factors, which is beneficial to the stability of monitoring data. (2) The present invention utilizes the pulley structure and lever amplification principle. A tension sensor is set at the other end of the lever device, so that the tension signal of the lever is amplified several times and transmitted to the tension sensor, thereby monitoring minute water level changes. (3) The present invention adopts a fixed float device and is equipped with a magnetic ring and a sleeve structure. The two work together to reduce the impact of waves on the float during the process of the float rising and falling. Compared with electronic water level sensors, it can avoid the influence of water surface obstacles and waves. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 For the present invention Figure 2A magnified structural diagram at point A; Figure 4 This is a schematic diagram of the overall structure of the lever device of the present invention; Figure 5 This is a schematic diagram of the lever distribution of the lever device of the present invention; Figure 6 This is a schematic diagram of the overall structure of the protective cylinder of the present invention; Figure 7 This is a schematic diagram of a half-section of the protective cylinder of the present invention; Figure 8 This is a schematic diagram of the sleeve side structure of the present invention; Figure 9 This is a schematic diagram of the internal surface structure of the sleeve of the present invention; Figure 10 This is a schematic diagram of the overall cross-sectional structure of the protective cylinder of the present invention; Figure 11 This is a schematic diagram of the inner cross-sectional structure of the sleeve of the present invention; Figure 12 This is a schematic diagram of the trajectory structure of the inner wall of the sleeve according to the present invention; Figure 13 This is a finite element analysis cloud diagram of the overall stress on the pontoon of the present invention; Figure 14 This is a finite element analysis cloud diagram of the bottom end of the pontoon of the present invention.

[0013] The attached diagram is labeled as follows: 1. Float; 2. Protective cylinder; 3. Magnetic ring; 4. Base; 5. Steel wire rope; 6. Pulley; 7. Protective tube; 8. Lever device; 9. Tension sensor; 10. Data acquisition device; 11. Sleeve; 12. Divider plate; 13. Through port; 14. Guide surface; 15. Transition surface; 16. Arc-shaped surface. Detailed Implementation

[0014] 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 only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] As attached Figure 1 To be continued Figure 14A fixed buoy-type water level monitoring device is shown, including a buoy 1, a protective cylinder 2 that is slidably fitted on the outside of the buoy 1, a magnetic ring 3 embedded in the outer and inner walls of the buoy 1 and the protective cylinder 2, a base 4 fixedly installed at the bottom end of the protective cylinder 2, a steel wire rope 5 fixed at the center of the bottom end of the buoy 1, a protective tube 7 connected to the side of the base 4, a plurality of pulleys 6 installed on the inner wall of the protective tube 7, the steel wire rope 5 being sequentially wound and connected to the surface of the plurality of pulleys 6, a lever device 8 hinged to the other end of the steel wire rope 5, a tension sensor 9 installed at the other end of the lever device 8, and a data acquisition device 10 connected to the other end of the tension sensor 9 via a cable; Among them, lever device 8 is a lever in the shape of a horizontal arm made of metal material, see attached figure. Figure 5 The left side F1 is the force-bearing end of the float steel wire rope 5, and the right side F2 is the force-bearing end of the tension sensor. When the torque is balanced, F1*L1=F2*L2. That is, the force at the float 1 end is amplified by the arm lengths of L1 and L2. The force is then detected by the tension sensor 9 to calculate the force on the float and then the water level change. Among them, the tension sensor 9 is a high-precision spoke-type tension sensor, model BCBU-1, with RS485 signal output. The acquisition device 10 includes a main controller, a storage unit, a mechanical sensor conditioning circuit unit, and a communication unit, model JH-WL100.

[0016] A sleeve 11 is fixedly connected to the bottom end of the float 1. Multiple partition plates 12 are evenly spaced circumferentially on the inner wall of the sleeve 11. Multiple openings 13 are provided on the outer side of the bottom end of the protective cylinder 2. A guide surface 14 is formed on the inner wall of the sleeve 11. A transition surface 15 is seamlessly connected to the top of the guide surface 14. An arc-shaped surface 16 is connected to the other end of the transition surface 15. The guide surface 14 has a straight trajectory. Both the transition surface 15 and the arc-shaped surface 16 are arc-shaped, and their concave directions are opposite. The concave direction of the transition surface 15 points obliquely upwards, and the concave direction of the arc-shaped surface 16... The direction of the sink is diagonally downward. With the above setting, it can be ensured that when the water flows through the guide surface 14, the overall direction is diagonally upward in a straight line. When it moves to the transition surface 15, it is buffered to a certain extent. Then, while moving laterally along the transition surface 15, it gradually moves upward until it passes the surface of the arc surface 16. Finally, the water flows through the arc surface 16 to the position directly below the float 1. When the float 1 moves, it cooperates with the magnetic ring 3, which is distributed in a state of opposite repulsion between a pair of magnetic poles, to ensure that the float 1 moves in a vertical state. This further improves its accuracy while reducing the friction inside the tube and improving the effect of the device.

[0017] The two magnetic rings 3 are spaced apart, and the magnetic poles of the two magnetic rings 3 are distributed in a state of opposite repulsion. The float 1 and the protective cylinder 2 are spaced apart. The float 1 and the protective cylinder 2 are made of corrosion-resistant material. The port 13 is located at the bottom of the float 1, and the top of the sleeve 11 is provided with an opening.

[0018] Please refer to the attached instruction manual for details. Figure 6 The port 13 is located at the bottom end of the float 1.

[0019] The specific implementation method is as follows: With the above-mentioned setting, it can be ensured that after water enters the lower end of the protective cylinder 2, the bottom end of the float 1 can be lifted from bottom to top, thereby helping to reduce the impact of water surface waves on the float 1, ensuring the accuracy of the float movement, and thus increasing the practicality of the device.

[0020] Please refer to the attached instruction manual for details. Figure 12 The surfaces of the guide surface 14, transition surface 15 and arc-shaped surface 16 are all smooth, and the tail end of the arc-shaped surface 16 is in close contact with the bottom end surface of the float 1.

[0021] The specific implementation method is as follows: With the above settings, when the water flowing into the protective cylinder 2 enters the bottom end of the float 1 through the guide surface 14, transition surface 15 and arc-shaped surface 16, the water flow can be guided to the center position of the bottom end of the float 1 through the arc-shaped surface 16. Then, the water flow lifts and suspends the center position of the float 1 from top to bottom, further ensuring the overall stability of the float 1, avoiding the tendency of the float 1 to tilt and move after being affected by waves, thereby increasing the friction between the float 1 and the outer protective cylinder 2, and further improving the practicality of the float 1 in use.

[0022] Among them, through attachment Figure 13 and attached Figure 14 It can be seen that through the cooperation of the guiding surface 14, the transition surface 15, and the arc-shaped surface 16, the surging upward water flow can be gradually guided to the center of the bottom of the float 1, and the float 1 can be supported and supported at the center, thereby ensuring that the float 1 rises vertically in a good manner and avoiding the problem of excessive friction between the float 1 and the protective cylinder 2 caused by its large-angle tilt.

[0023] Working principle of the invention: Step 1: First, the operator assembles all components of the device normally. During installation, first pour the fixed base 4, fix multiple sets of pulleys 6 on the protective tube 7, then pass the stainless steel wire rope 5 through the pulleys 6 and fix the protective tube 2 on the base 4. The magnetic ring 3 is embedded in the inner wall of the protective tube 2, and the matching magnetic ring 3 is fixed at the corresponding position on the outside of the float 1. Next, fix the float 1 to the wire rope 5, pre-tighten the wire rope 5 and adjust the float 1 to a suitable position. The other end of the wire rope 5 is hinged to the lever device 8. The other end of the lever device 8 is connected to the tension sensor 9, and the cable of the tension sensor 9 is connected to the data acquisition device 10 to collect data and send it to the software platform.

[0024] Step 2: When the water level changes, the buoyancy of the water will lift or lower the float 1 inside the protective cylinder 2. At this time, the buoyancy of the float 1 is transferred to the lever device 8 using the equal-arm principle of the pulley 6. Then, the lever device 8 amplifies the force using the lever principle, and the force is detected by the tension sensor 9. When the water level rises or falls, the buoyancy will change. According to Archimedes' principle, F_buoyancy = G_displaced = ρ_liquid * g * V_displaced. Given the cross-sectional area of ​​the float, the water level change h can be obtained. All other quantities involved in this calculation process are known or quantitative, and the formula is common knowledge, so it will not be elaborated further. Thus, the water level change information is accurately obtained. At the same time, when the float 1 floats due to being lifted by the water level, water flows in through the opening 13. The water flow inside the protective cylinder 2 first enters the interior of the sleeve 11, and is gradually guided into the bottom of the float 1 by the guide surface 14, transition surface 15 and arc-shaped surface 16 distributed on its inner wall. Finally, the water flow is guided to the center position of the bottom of the float 1 through the arc-shaped surface 16. Then, the water flow lifts and suspends the center position of the float 1 from top to bottom, further ensuring the overall stability of the float 1 and preventing the float 1 from tilting and moving after being affected by waves. At the same time, it also avoids the problem of increased wear rate and inaccurate calculation between the float 1 and the outer protective cylinder 2 after tilting and colliding, which would further improve the practicality of the float 1 in use. Finally, the device completes the process of calculating and recording the information of the change in the horizontal plane.

[0025] Step 3: First, the operator shuts down the device normally. Then, the operator checks whether the fixing between the various components of the device is normal. Then, the operator replaces and repairs the aging and severely worn parts inside the device.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixed float-type water level monitoring device, characterized in that: The device includes a buoy, with a protective sleeve slidingly fitted around its exterior. A magnetic ring is embedded in both the outer and inner walls of the buoy and the protective sleeve. A base is fixedly mounted at the bottom of the protective sleeve. A steel wire rope is fixed at the center of the bottom of the buoy. A protective tube is connected to the side of the base. Multiple sets of pulleys are installed on the inner wall of the protective tube. The steel wire rope is sequentially wound around the surfaces of the multiple sets of pulleys. A lever device is hinged to the other end of the steel wire rope. A tension sensor is installed at the other end of the lever device. A data acquisition device is connected to the other end of the tension sensor via a cable. A sleeve is fixedly connected to the bottom end of the pontoon. Multiple partition plates are evenly distributed circumferentially on the inner wall of the sleeve. Multiple openings are provided on the outer side of the bottom end of the protective cylinder. A guide surface is formed on the inner wall of the sleeve. A transition surface is seamlessly connected to the top end of the guide surface. An arc-shaped surface is connected to the other end of the transition surface. The overall trajectory of the guide surface is a straight surface. Both the transition surface and the arc-shaped surface are arc-shaped. The arc-shaped concavity directions of the transition surface and the arc-shaped surface are opposite. The concavity direction of the transition surface points obliquely upward, and the concavity direction of the arc-shaped surface points obliquely downward.

2. The fixed float-type water level monitoring device according to claim 1, characterized in that: The two magnetic rings are spaced apart, and the magnetic poles of the two magnetic rings are distributed in a state of opposite repulsion.

3. The fixed float-type water level monitoring device according to claim 1, characterized in that: The pontoon and the protective cylinder are fitted with a gap, and both the pontoon and the protective cylinder are made of corrosion-resistant materials.

4. The fixed float-type water level monitoring device according to claim 1, characterized in that: The opening is located at the bottom end of the pontoon.

5. A fixed float-type water level monitoring device according to claim 1, characterized in that: The top end of the sleeve is provided with an opening.

6. The fixed float-type water level monitoring device according to claim 1, characterized in that: The surfaces of the guiding surface, transition surface, and arc-shaped surface are all smooth, and the tail end of the arc-shaped surface is in close contact with the bottom end surface of the float.

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