Reservoir area water level measuring device and method for tailings pond

Abstract

The invention relates to the technical field of water level measuring devices, in particular to a reservoir area water level measuring device and measuring method.The reservoir area water level measuring device comprises a water level measuring ruler, the lower end of the water level measuring ruler is fixedly connected with a mounting seat, the lower surface of the mounting seat is fixedly connected with a base plate, and the upper end of the water level measuring ruler is fixedly provided with an upper top plate; a limiting rod is fixedly connected between the mounting base and the limiting rod, and a measuring auxiliary ruler is movably mounted on the inner surface of the center of the water level measuring ruler. Through a double-ruler measuring mode that the water level measuring ruler and the auxiliary measuring ruler cooperatively work, the current water level value is accurately displayed, meanwhile, the highest water level in a measuring period can be effectively monitored, through mutual cooperation of the pre-floating assembly and the floating cylinder, it can be guaranteed that dirt on the outer wall of the water level measuring ruler is automatically cleaned, and the working efficiency is improved. The exterior of the water level measuring scale can be blocked and maintained, water flow impact is effectively resisted, the buoy is prevented from being damaged due to water flow impact, and the service life of the device is prolonged.

Description

Technical Field

[0001] This invention relates to the field of water level measurement device technology, specifically to a tailings dam water level measurement device and measurement method. Background Technology

[0002] As a key facility in mining production, the safety of tailings dams is directly related to the lives and property of downstream residents and the ecological environment. The water level is one of the core parameters affecting the stability of tailings dams. By regularly observing the scale lines on the water level gauge, the staff in the reservoir area can quickly grasp the dynamics of the water level, adjust the reservoir's storage and release strategies in a timely manner, ensure the safe operation of the reservoir, and effectively regulate the flow of downstream rivers to reduce the occurrence of floods.

[0003] In existing technology, such as the water level gauge for hydraulic engineering disclosed in CN222993800U, the measuring gauge has a fixed base at its bottom and scale markings on its side. A lifting sliding cavity is formed inside the measuring gauge, and a lifting float is installed inside the cavity. A maximum water level gauge is installed on the top of the float, with the top of the maximum water level gauge passing through the top of the measuring gauge. An L-shaped water inlet pipe is located on the left side of the fixed base, and its top connects to the bottom of the lifting sliding cavity. A one-way water inlet valve is installed on the L-shaped water inlet pipe. An electromagnetic drain valve is installed on the lower right side of the lifting sliding cavity, releasing water from the cavity and clearing the record of the previous highest water level. While the real-time water level is displayed externally via the scale markings, the highest water level during the measurement period can also be displayed by the lifting gauge driven by the internal float.

[0004] To address the issue that existing equipment cannot display the highest water level during measurement, the aforementioned document proposes a method that combines a lifting float with a lifting ruler to measure the highest water level. However, in actual use, the reservoir water enters the measuring scale through the inlet pipe. The water contains a large number of impurities, and sludge can easily enter and is difficult to clean. Long-term use can cause blockages in the measuring scale, making the float and the lifting scale inaccurate. In addition, traditional water level measurement is easily affected by the accumulation of dirt on the reservoir surface, making it difficult for staff to read the readings.

[0005] Therefore, this invention proposes a tailings dam water level measuring device and method to solve the problems of existing water level measuring devices having a simple structure and being easily affected by the accumulation of dirt on the reservoir water surface, thus affecting the reading of the data and limiting its use. The device can monitor and display the highest water level during the measurement period, while also self-cleaning the dirt that accumulates on the measuring scale. It can also accommodate the disturbance of impurities in the water near the scale, ensuring accurate readings. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a tailings dam water level measuring device and method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a tailings dam water level measuring device, comprising a water level measuring ruler, a mounting base fixedly connected to the lower end of the water level measuring ruler, a base plate fixedly connected to the lower surface of the mounting base, an upper top plate fixedly installed at the upper end of the water level measuring ruler, a limiting rod fixedly connected between the mounting base and a limiting rod, a measuring auxiliary ruler movably installed on the inner surface of the center of the water level measuring ruler, the measuring auxiliary ruler consisting of a float plate part and a connecting rod part, a locking component provided at the bottom end of the connecting rod part, horizontal top rods fixedly connected to both sides of the measuring auxiliary ruler, a mounting ring one and a mounting ring two provided on the inner side of the horizontal top rods, the mounting ring one and the mounting ring two slidably installed on the outside of the water level measuring ruler, a float movably installed on the inner side of the mounting ring one and the mounting ring two, a connecting cylinder fixedly connected to the bottom end of the float, a pre-floating component provided on the inner side of the connecting cylinder, the pre-floating component comprising a floating part and an extension part.

[0008] Preferably, the connecting rod includes a first lifting rod and a second lifting rod. The top end of the first lifting rod is fixedly connected to the lower surface of the float plate. The end of the first lifting rod away from the float plate is threadedly connected to the upper end of the second lifting rod. The second lifting rod has an inverted "T" shaped cross-section.

[0009] Preferably, the locking assembly includes a central rotating rod and a support sleeve. A screwing block is fixedly connected to the lower outer surface of the central rotating rod, and the screwing block is rotatably installed inside the mounting base. A cam block is fixedly connected to the upper outer surface of the central rotating rod. The support sleeve is fixedly installed on the bottom surface of the inner cavity of the water level measuring gauge, and the lower surface of the support sleeve is fixedly connected to the upper surface of the mounting base.

[0010] Preferably, horizontal abutment rods are slidably connected to the inner walls of both sides of the support sleeve. The two ends of the horizontal abutment rods are respectively set with rounded corners. An anti-detachment ring is fixedly connected to the outer surface of the horizontal abutment rod. A spring is fixedly connected to the outer surface of the anti-detachment ring on the side away from the cam block. The other end of the spring is fixedly connected to the inner ring surface of the support sleeve. The spring is slidably sleeved on the outside of the horizontal abutment rod.

[0011] Preferably, a fixed seat is fixedly connected to the outer ring surface of the support sleeve, and a biting plate is rotatably connected to the inner side of the fixed seat via a pin. A connecting spring wire is fixedly connected to the inner side of the biting plate, and the other end of the connecting spring wire is fixedly connected to the upper outer surface of the support sleeve. The upper inner side of the biting plate is movably abutting against the lower end of the lifting rod.

[0012] Preferably, the inner ring surface of the mounting ring is fixedly connected to a limiting support and a float limiting sleeve, and the inner surface of the float limiting sleeve is rotatably connected to the outer surface of the float.

[0013] Preferably, a protective plate is fixedly connected to the inner ring surface of the second mounting ring, and a central shaft is fixedly connected to the upper end of the float, with the outer surface of the central shaft rotatably connected to the lower inner wall of the protective plate.

[0014] Preferably, the connecting cylinder is composed of a cylindrical part and a conical part, the upper end of the conical part is connected to the lower end of the cylindrical part, and an inner convex column is fixedly connected to the center of the conical part.

[0015] Preferably, the floating component includes a float and a connecting rod. The upper end of the float is fixedly connected to the lower end of the connecting rod. The other end of the connecting rod is fixedly connected to a pusher plate. The lower surface of the pusher plate movably abuts against a receiving ring plate. A receiving groove is evenly formed on the outer ring surface of the receiving ring plate. A limiting post is fixedly connected to the lower end of the receiving ring plate. The limiting post is fixedly installed on the upper end of the inner convex column. The outer surface of the connecting rod is slidably connected to the inner wall of the inner convex column and the inner wall of the limiting post, respectively. The extension component includes a hinge seat and a movable arm plate. A curved elastic bar is fixedly connected to the inner side of the movable arm plate. The other end of the curved elastic bar is fixedly connected to the outer surface of the limiting post. The hinge seat is fixedly installed on the lower outer wall of the limiting post. One end of the movable arm plate is rotatably connected to the hinge seat. A snap-fit ​​block is fixedly installed on the upper outer surface of the movable arm plate. The outer surface of the snap-fit ​​block is movably snapped against the inner surface of the receiving groove. The outer surface of the snap-fit ​​block movably abuts against the inner ring surface of the pusher plate.

[0016] A method for measuring the water level in a tailings dam using a tailings dam water level measuring device includes the following steps: 1. Foundation fixing: The measuring device is fixed to the cement using bolts on the base plate, so that the water level measuring gauge is erected in the measuring area of ​​the tailings dam. S2. Installation and status adjustment of the measuring scale: When the measuring device is not installed or being transported, press the top of the float plate to retract the entire measuring scale into the water level measuring scale, and engage the bottom end of the lifting rod to realize the recovery of the measuring scale; before the measuring device is installed, release the entire measuring scale from restriction so that it can rise and fall with the float as the water level in the reservoir changes. S3. Installation of pontoons and related components: Install the pontoon connecting cylinder at the bottom of the pontoon. The first installation ring and the second installation ring form a supporting, limiting and enclosing effect on the pontoon. S4. Reservoir water level measurement: In the initial state, the float is at one-third of the water level reference on the water level measuring scale. As the water level in the reservoir gradually rises, the water surface first triggers the pre-floating component to form an umbrella-shaped structure. When the float rotates, the pre-floating component rotates synchronously, realizing water level measurement while brushing away dirt on the water surface near the water level measuring scale, which facilitates accurate reading.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a tailings dam water level measuring device and method. The device employs a "dual-scale" measurement mode where a water level measuring scale and a secondary measuring scale work together. While accurately displaying the current water level value, it can also effectively monitor the highest water level within the measurement cycle. Through the cooperation of the pre-floating component and the float, it can ensure the automated cleaning of dirt on the outer wall of the water level measuring scale and can also provide external protection to the water level measuring scale, effectively resisting the impact of water flow, preventing damage to the float due to water flow impact, extending the service life of the device, and also creating a disturbance effect on the water area near the measuring scale, avoiding the accumulation of slag on the reservoir surface, and preventing deviations in water level readings due to slag obstruction or interference, thereby further improving the accuracy of reservoir water level monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the extended state of the measuring scale of the present invention; Figure 2 This is a schematic diagram of the structure of the measuring auxiliary scale of the present invention when it is retrieved into the water level measuring scale; Figure 3 for Figure 2 Schematic diagram of section AA Figure 1 ; Figure 4 for Figure 3 An enlarged structural diagram at point A; Figure 5 for Figure 4 A magnified structural diagram at point A1; Figure 6 for Figure 2 Schematic diagram of section AA Figure 2 ; Figure 7 This is a schematic diagram of the connection structure between the float and mounting ring one and mounting ring two of the present invention; Figure 8 This is a schematic diagram of the connection structure between the pontoon and the connecting cylinder of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the connecting cylinder of the present invention; Figure 10 This is a schematic diagram of the movable arm plate in the open state of the present invention; Figure 11This is a schematic diagram of the retracted state structure of the movable arm plate of the present invention.

[0019] In the diagram: 1. Water level measuring scale; 11. Mounting base; 110. Base plate; 12. Limiting rod; 13. Top plate; 2. Measuring auxiliary scale; 21. Float section; 211. Lifting rod one; 212. Lifting rod two; 213. Central rotating rod; 214. Twisting block; 215. Cam block; 216. Support sleeve; 2161. Horizontal contact rod; 21611. Spring; 2162. Fixing base; 21621. Engaging plate; 21622. Connecting spring wire; 22. Horizontal push rod; 23. Mounting ring one; 231. Limiting support; 2311. Cleaning scraper 232. Float limiting sleeve ring; 24. Mounting ring II; 241. Protective plate; 242. Toothed ring; 2421. Transmission gear plate; 2422. Central shaft; 3. Float; 31. Connecting cylinder; 311. Columnar part; 312. Conical part; 313. Inner convex column; 3131. Buoy; 3132. Connecting rod; 3133. Pushing sleeve plate; 314. Limiting column; 3141. Receiving ring plate; 31410. Receiving groove; 3142. Hinge seat; 3143. Movable arm plate; 31431. Curved elastic bar; 3144. Snap-fit ​​block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit 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.

[0021] Example 1, please refer to Figure 1-11This invention provides a technical solution: a tailings dam water level measuring device, including a water level measuring ruler 1. A mounting base 11 is fixedly connected to the lower end of the water level measuring ruler 1. A base plate 110 is fixedly connected to the lower surface of the mounting base 11. Mounting holes are evenly distributed on the base plate 110. The measuring device is fixed to the cement using bolts through the base plate 110 and erected in the tailings dam measuring area. A top plate 13 is fixedly installed at the upper end of the water level measuring ruler 1. A limiting rod 12 is fixedly connected between the mounting base 11 and the limiting rod 12. A measuring auxiliary ruler 2 is movably installed on the inner surface of the center of the water level measuring ruler 1. Horizontal push rods 22 are fixedly connected to both sides of the ruler 2. A mounting ring 1 23 and a mounting ring 24 are provided on the inner side of the horizontal push rods 22. A float 3 is movably mounted on the inner side of the mounting rings 1 23 and 24. A connecting cylinder 31 is fixedly connected to the bottom end of the float 3. The connecting cylinder 31 is composed of a cylindrical part 311 and a conical part 312. The upper end of the conical part 312 is connected to the lower end of the cylindrical part 311. An inner convex column 313 is fixedly connected to the center of the conical part 312. A pre-floating component is provided on the inner side of the connecting cylinder 31. The pre-floating component includes a floating element and an extension element. The floating element includes a float 3131 and a connecting element. The upper end of the rod 3132 and the float 3131 are fixedly connected to the lower end of the connecting rod 3132. The other end of the connecting rod 3132 is fixedly connected to a pusher plate 3133. The lower surface of the pusher plate 3133 movably abuts against a receiving ring plate 3141. The outer ring surface of the receiving ring plate 3141 is evenly provided with receiving grooves 31410. The lower end of the receiving ring plate 3141 is fixedly connected to a limiting post 314. The limiting post 314 is fixedly installed on the upper end of the inner convex column 313. The outer surface of the connecting rod 3132 is slidably connected to the inner wall of the inner convex column 313 and the inner wall of the limiting post 314. The extension includes a hinge seat 3142. The movable arm plate 3143 has a curved elastic bar 31431 fixedly connected to its inner side. The other end of the curved elastic bar 31431 is fixedly connected to the outer surface of the limiting post 314. The hinge seat 3142 is fixedly installed on the lower outer wall of the limiting post 314. One end of the movable arm plate 3143 is rotatably connected to the hinge seat 3142. A snap-fit ​​block 3144 is fixedly installed on the upper outer surface of the movable arm plate 3143. The outer surface of the snap-fit ​​block 3144 is movably snapped into the inner surface of the receiving groove 31410. The outer surface of the snap-fit ​​block 3144 is movably abutted against the inner annular surface of the push sleeve plate 3133. In this embodiment, when the measuring device is erected in the tailings dam measurement area, the float 3 rises with the change of the water level in the dam. During the rising of the float 3, the measuring scale 2 rises synchronously through the connection of the horizontal top rod 22. The horizontal top rod 22 is equipped with markings that are consistent with the scale on the surface of the water level measuring scale 1. By observing the rising action of the float 3, the current water level in the dam can be monitored in real time, and the rising of the measuring scale 2 facilitates the display of the highest water level during the measurement period. It should be noted that in the initial state, referring to... Figures 2-3 As shown, the float 3 is positioned at one-third of the height of the water level measuring scale 1, serving as a water level reference. When the water level in the reservoir rises, the water surface first causes the float 3131 inside the inner convex column 313 to float upwards, thus triggering the extension component. When the float 3131 floats upwards, it drives the connecting rod 3132 and the pusher plate 3133 to move upwards simultaneously. At this time, the pusher plate 3133 separates from the receiving ring plate 3141, releasing the restriction on the multiple sets of locking blocks 3144. This allows the locking blocks 3144, which were originally restricted inside the receiving groove 31410, to unfold outwards. At the same time, the movable arm plate 3143 expands outwards, forming an umbrella-shaped structure. When the float 3 rotates, the pre-floating component rotates synchronously, brushing away dirt on the water surface near the water level measuring scale 1, preventing slag from accumulating on the surface of the water level measuring scale 1 for a long time, causing corrosion and inaccurate readings.

[0022] Example 2, see attached document Figure 1-11 Based on Example 1, in order to display the current water level while also monitoring the highest water level during the measurement period: The measuring scale 2 consists of a float plate section 21 and a connecting rod section. The connecting rod section includes a first lifting rod 211 and a second lifting rod 212. The top end of the first lifting rod 211 is fixedly connected to the lower surface of the float plate section 21, and the end of the first lifting rod 211 away from the float plate section 21 is threadedly connected to the upper end of the second lifting rod 212. The second lifting rod 212 has an inverted "T" shaped cross-section. A locking assembly is provided at the bottom of the connecting rod section. The locking assembly includes a central rotating rod 213 and a support sleeve 216. A screwing block 214 is fixedly connected to the lower outer surface of the rotating rod 213. The screwing block 214 is rotatably installed inside the mounting base 11. A cam block 215 is fixedly connected to the upper outer surface of the central rotating rod 213. A support sleeve 216 is fixedly installed on the bottom surface of the inner cavity of the water level measuring gauge 1, and the lower surface of the support sleeve 216 is fixedly connected to the upper surface of the mounting base 11. Horizontal abutment rods 2161 are slidably connected to the inner walls on both sides of the support sleeve 216. One side of the horizontal abutment rod 2161... The outer surface of the horizontal contact rod 2161 is in movable contact with the outer surface of the cam block 215, and the other end of the horizontal contact rod 2161 is in movable contact with the inner side of the engagement plate 21621. Both ends of the horizontal contact rod 2161 are rounded. An anti-disengagement ring is fixedly connected to the outer surface of the horizontal contact rod 2161. A spring 21611 is fixedly connected to the outer surface of the anti-disengagement ring on the side away from the cam block 215. The other end of the spring 21611 is fixedly connected to the inner ring surface of the support sleeve 216. 1. Sliding sleeve is installed outside the horizontal abutment rod 2161; the outer ring surface of the support sleeve 216 is fixedly connected to the fixed seat 2162, the inner side of the fixed seat 2162 is rotatably connected to the biting plate 21621 through the pin, the inner side of the biting plate 21621 is fixedly connected to the connecting spring wire 21622, the other end of the connecting spring wire 21622 is fixedly connected to the upper outer surface of the support sleeve 216, and the inner side of the upper end of the biting plate 21621 is movably abutting against the lower end of the lifting rod 212; In this embodiment, the measuring device is installed in front of the measuring area. Turning the screw block 214 causes the central rotating rod 213 and the cam block 215 to rotate synchronously. At this time, the cam part of the cam block 215 releases its contact with the rounded corner part of one end of the horizontal contact rod 2161. Then, both sets of horizontal contact rods 2161 move inward under the reverse elastic force of the spring 21611. The end of the horizontal contact rod 2161 away from the cam block 215 moves inward and does not contact the lower inner side of the biting plate 21621. According to the lever principle, the upper position of the biting plate 21621 does not engage with the bottom position of the lifting rod 212. This releases the restriction on the lifting rod 212, making it easier for the measuring scale 2 to rise and fall with the float 3 as the water level in the reservoir changes. Before the measuring device is installed or transported, the operator first presses the top of the float plate 21 to retract the measuring auxiliary scale 2 into the water level measuring scale 1, so that the bottom end of the lifting rod 212 abuts against the top end of the support sleeve 216. Then, the rotating block 214 is rotated in the opposite direction, so that the cam part of the cam block 215 abuts against the horizontal contact rod 2161. At the same time, the upper part of the biting plate 21621 bites the bottom end of the lifting rod 212. In this way, the measuring auxiliary scale 2 can be retracted as a whole, which is convenient for storage and realizes the combination of the two scales.

[0023] Example 3, refer to Appendix Figure 1-11 Based on Example 2, in order to achieve the protection of the pontoon 3 and the self-rotation of the pontoon 3 to facilitate the reading of the reservoir water level: Mounting ring 1 (23) and mounting ring 2 (24) are slidably mounted on the outside of the water level measuring gauge 1. A limiting support 231 and a float limiting sleeve 232 are fixedly connected to the inner annular surface of mounting ring 1 (23). The inner surface of the float limiting sleeve 232 is rotatably connected to the outer surface of the float 3. The limiting support 231 consists of an annular plate and a diverging plate. A cleaning scraper ring 2311 is fitted onto the inner annular surface of the annular plate, and the inner annular surface of the cleaning scraper ring 2311 is movably connected to the outer surface of the water level measuring gauge 1. Through the cleaning scraper ring 2311, the exterior of the water level measuring gauge 1 can be automatically cleaned. For accurate readings; a protective plate 241 is fixedly connected to the inner ring surface of the mounting ring 24; a central shaft 2422 is fixedly connected to the upper end of the float 3; the outer surface of the central shaft 2422 is rotatably connected to the lower inner wall of the protective plate 241; a toothed ring 242 is rotatably connected to the inner ring surface of the protective plate 241; a transmission gear plate 2421 is meshed and rotated on the inner tooth surface of the toothed ring 242; the central inner surface of the transmission gear plate 2421 is fixedly connected to the upper outer surface of the central shaft 2422; one set of transmission gear plates 2421 is the driving gear, and three sets of transmission gear plates 2421 are the driven gears; In this embodiment, the mounting ring 23 and the limiting support 231 are combined to form an annular plate structure, which can provide limiting support for the float 3 and can also form a protective enclosure for the float 3 and the water level measuring ruler 1 to prevent damage to the float 3 caused by water flow impact. The inner side of the mounting ring 24 is equipped with a protective plate 241 to accommodate the internal gear structure and provide a limiting function, ensuring that the float 3 and the connecting cylinder 31 can rotate to brush away dirt in the nearby water area. The centrifugal force during rotation can get rid of the floating objects attached to the outside, making it easier to read the water level in the reservoir area.

[0024] Example 4, see attached document Figure 1-11 Based on Embodiment 3, the present invention also provides a method for measuring the water level in a tailings dam using a tailings dam water level measuring device, comprising the following steps: S1. Foundation fixing: The measuring device is fixed to the cement using bolts through the base plate 110, so that the water level measuring ruler 1 is erected in the measurement area of ​​the tailings dam. S2. Installation and status adjustment of measuring scale 2: When the measuring device is not installed or being transported, press the top of the float plate 21 to retract the measuring scale 2 as a whole into the water level measuring scale 1, and engage the bottom end of the lifting rod 212 to realize the recovery of the measuring scale 2; before the measuring device is installed, release the measuring scale 2 as a whole to facilitate its raising and lowering with the float 3 when the water level in the reservoir changes. S3, installation of pontoon 3 and related components: Install pontoon connecting cylinder 31 at the bottom of pontoon 3, and installation ring 1 23 and installation ring 24 form a supporting, limiting and enclosing effect on pontoon 3; S4. Reservoir water level measurement: In the initial state, the float 3 is at one-third of the water level reference of the water level measuring ruler 1. As the water level in the reservoir gradually rises, the water surface first triggers the pre-floating component to form an umbrella-shaped structure. When the float 3 rotates, the pre-floating component rotates synchronously, realizing water level measurement while brushing away dirt on the water surface near the water level measuring ruler 1, which facilitates accurate reading.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tailings dam water level measuring device, comprising a water level measuring ruler (1), wherein a mounting base (11) is fixedly connected to the lower end of the water level measuring ruler (1), a base plate (110) is fixedly connected to the lower surface of the mounting base (11), an upper top plate (13) is fixedly installed on the upper end of the water level measuring ruler (1), and a limiting rod (12) is fixedly connected between the mounting base (11) and a limiting rod (12), characterized in that: A measuring auxiliary ruler (2) is movably installed on the inner surface of the center of the water level measuring ruler (1). The measuring auxiliary ruler (2) is composed of a float plate part (21) and a connecting rod part. A locking component is provided at the bottom end of the connecting rod part. Horizontal top rods (22) are fixedly connected to both sides of the measuring auxiliary ruler (2). A mounting ring one (23) and a mounting ring two (24) are provided on the inner side of the horizontal top rod (22). The mounting ring one (23) and the mounting ring two (24) are slidably installed on the outside of the water level measuring ruler (1). A float (3) is movably installed on the inner side of the mounting ring one (23) and the mounting ring two (24). A connecting cylinder (31) is fixedly connected to the bottom end of the float (3). A pre-floating component is provided on the inner side of the connecting cylinder (31). The pre-floating component includes a floating part and an extension part.

2. The tailings dam water level measuring device according to claim 1, characterized in that: The connecting rod includes a first lifting rod (211) and a second lifting rod (212). The top end of the first lifting rod (211) is fixedly connected to the lower surface of the float plate (21). The end of the first lifting rod (211) away from the float plate (21) is threadedly connected to the upper end of the second lifting rod (212). The second lifting rod (212) has an inverted "T" shaped cross section.

3. The tailings dam water level measuring device according to claim 1, characterized in that: The locking assembly includes a central rotating rod (213) and a support sleeve (216). A screwing block (214) is fixedly connected to the lower outer surface of the central rotating rod (213). The screwing block (214) is rotatably installed inside the mounting base (11). A cam block (215) is fixedly connected to the upper outer surface of the central rotating rod (213). The support sleeve (216) is fixedly installed on the bottom surface of the inner cavity of the water level measuring gauge (1), and the lower surface of the support sleeve (216) is fixedly connected to the upper surface of the mounting base (11).

4. A tailings dam water level measuring device according to claim 3, characterized in that: A horizontal abutment rod (2161) is slidably connected to the inner walls of both sides of the support sleeve (216). The two ends of the horizontal abutment rod (2161) are respectively set as rounded corners. An anti-detachment ring is fixedly connected to the outer surface of the horizontal abutment rod (2161). A spring (21611) is fixedly connected to the outer surface of the anti-detachment ring away from the cam block (215). The other end of the spring (21611) is fixedly connected to the inner ring surface of the support sleeve (216). The spring (21611) is slidably sleeved on the outside of the horizontal abutment rod (2161).

5. A tailings dam water level measuring device according to claim 4, characterized in that: The outer ring surface of the support sleeve (216) is fixedly connected to a fixed seat (2162). The inner side of the fixed seat (2162) is rotatably connected to a biting plate (21621) via a pin. The inner side of the biting plate (21621) is fixedly connected to a connecting spring wire (21622). The other end of the connecting spring wire (21622) is fixedly connected to the upper outer surface of the support sleeve (216). The inner side of the upper end of the biting plate (21621) is movably abutting against the lower end of the lifting rod (212).

6. A tailings dam water level measuring device according to claim 1, characterized in that: The inner ring surface of the mounting ring (23) is fixedly connected to the limiting support (231) and the float limiting sleeve ring (232), and the inner surface of the float limiting sleeve ring (232) is rotatably connected to the outer surface of the float (3).

7. A tailings dam water level measuring device according to claim 6, characterized in that: The inner ring surface of the second mounting ring (24) is fixedly connected to a protective plate (241), and the upper end of the float (3) is fixedly connected to a central shaft (2422). The outer surface of the central shaft (2422) is rotatably connected to the lower inner wall of the protective plate (241).

8. A tailings dam water level measuring device according to claim 1, characterized in that: The connecting cylinder (31) is composed of a cylindrical part (311) and a conical part (312). The upper end of the conical part (312) is connected to the lower end of the cylindrical part (311). An inner convex column (313) is fixedly connected inside the center of the conical part (312).

9. A tailings dam water level measuring device according to claim 8, characterized in that: The floating component includes a float (3131) and a connecting rod (3132). The upper end of the float (3131) is fixedly connected to the lower end of the connecting rod (3132). The other end of the connecting rod (3132) is fixedly connected to a pusher plate (3133). The lower surface of the pusher plate (3133) movably abuts against a receiving ring plate (3141). The outer ring surface of the receiving ring plate (3141) is evenly provided with receiving grooves (31410). The lower end of the receiving ring plate (3141) is fixedly connected to a limiting post (314). The limiting post (314) is fixedly installed on the upper end of the inner convex column (313). The outer surface of the connecting rod (3132) is slidably connected to the inner wall of the inner convex column (313) and the limiting post (314). The extension component... The device includes a hinge seat (3142) and a movable arm plate (3143). A curved spring strip (31431) is fixedly connected to the inner side of the movable arm plate (3143). The other end of the curved spring strip (31431) is fixedly connected to the outer surface of the limiting post (314). The hinge seat (3142) is fixedly installed on the lower outer wall of the limiting post (314). One end of the movable arm plate (3143) is rotatably connected to the hinge seat (3142). A snap-fit ​​block (3144) is fixedly installed on the upper outer surface of the movable arm plate (3143). The outer surface of the snap-fit ​​block (3144) is movably snapped into the inner surface of the receiving groove (31410). The outer surface of the snap-fit ​​block (3144) is movably abutted against the inner circumferential surface of the push-pull sleeve plate (3133).

10. A method for measuring the water level in a tailings dam using a tailings dam water level measuring device, which is based on the tailings dam water level measuring device according to any one of claims 1-9, characterized in that: The measurement method for the tailings dam using a reservoir water level measuring device includes the following steps: S1. Foundation fixing: The measuring device is fixed to the cement by bolts through the base plate (110), so that the water level measuring ruler (1) is erected in the tailings pond area. S2. Installation and status adjustment of measuring scale (2): When the measuring device is not installed or transported, press the top of the float plate (21) and retract the measuring scale (2) into the water level measuring scale (1) as a whole, and engage the bottom end of the lifting rod (212) to realize the recovery of the measuring scale (2); before the measuring device is installed, release the restriction of the measuring scale (2) as a whole, so that it can rise and fall with the float (3) when the water level in the reservoir changes; S3. Installation of pontoon (3) and related components: Install the pontoon connecting tube (31) at the bottom of the pontoon (3). The first installation ring (23) and the second installation ring (24) form a support, limit and enclosure effect for the pontoon (3). S4. Reservoir water level measurement: In the initial state, the float (3) is at one-third of the water level reference of the water level measuring ruler (1). When the water level in the reservoir gradually rises, the water surface first triggers the pre-floating component to form an umbrella-shaped structure. When the float (3) rotates, the pre-floating component rotates synchronously. While realizing water level measurement, it also brushes away dirt on the water surface near the water level measuring ruler (1) to facilitate accurate reading.

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