A tailings dry beach length measuring device and method of construction thereof

Abstract

This invention relates to the field of tailings dry beach detection technology, specifically to a tailings dry beach length measuring device and its construction method. It includes columns installed on both banks of a tailings dam, a truss installed at the top between the two columns, and a detection mechanism including two slide rails installed on opposite sides of the truss's bottom surface. Sliding blocks are slidably connected to the slide rails. A sleeve is installed at the top of the inner cavity of a protective cover, with limiting holes through the opposite side walls of the sleeve. A fixed column is movably inserted into the inner cavity of the sleeve, and an ultrasonic level gauge is fixedly connected to the end of the fixed column away from the sleeve. In this invention, the ultrasonic level gauge and the sleeve are installed by interlocking the elastic limiting column and the limiting hole. This allows for easy disassembly by using external tools to separate the elastic limiting column from the limiting hole to remove the ultrasonic level gauge, and for installation, simply inserting the fixed column into the sleeve and the elastic limiting column into the limiting hole. The entire disassembly and assembly process is simple and quick.

Description

Technical Field

[0001] This invention relates to the field of tailings dry beach detection technology, specifically to a tailings dry beach length measuring device and its construction method. Background Technology

[0002] Existing tailings dam dry beach monitoring relies on the principle of trigonometric functions. Ultrasonic level gauges are installed on the top and surface of the tailings dam. These gauges illuminate the dry beach vertically downwards to obtain the elevation difference and outer slope ratio, thus determining the dry beach length. In metal mining, the process of discharging tailings into the tailings dam after ore is transported to the beneficiation plant is intermittent and continuous. The discharged tailings are accompanied by a large amount of water. After being discharged onto the top of the tailings dam, coarse sand settles near the top, followed by fine sand, gradually moving towards the waterline to form a certain outer slope ratio. In principle, the closer the ultrasonic level gauge installed on the tailings dam is to the waterline, the more accurate the dry beach length obtained.

[0003] The installation of the dry beach length detection device requires manual carrying of the ultrasonic level gauge bracket to the corresponding position, and the closer it gets to the waterline, the greater the safety risk of personnel falling into it. Currently, dry beach monitoring equipment that can be installed on the beach requires the mining company's concentrator to shut down for more than a week, waiting for the beach surface to have a relatively low moisture content. Installation personnel need to cautiously enter the site using low-lying, fixed wooden planks to ensure stability before proceeding. The ultrasonic level gauges used for dry beach monitoring need to be vertically downward to obtain accurate elevation values. Due to the unstable foundation of the beach surface, it is difficult to ensure the probes are vertically downward during the installation of the dry beach monitoring support. Furthermore, with tailings discharge impacting the dry beach pillars and wind factors, the ultrasonic level gauges inevitably deviate from the vertical plane after installation. Therefore, the applicant has proposed a dry beach length detection device (patent number CN202320191914.5) to address these issues. This device effectively solves the problems of the existing technology. However, after a period of use, the applicant found that when the ultrasonic level gauges in this device are damaged or require repair, operators need to climb onto the truss for maintenance, which poses certain safety hazards and can easily threaten the personal safety of maintenance personnel. Therefore, we have proposed a tailings dry beach length measuring device and its construction method to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a tailings dry beach length measuring device and its construction method, which can facilitate the disassembly and assembly of ultrasonic level gauges and reduce the personal threat to operators.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tailings dry beach length measuring device, comprising columns installed on both sides of the tailings dam, a truss installed on the top between the two columns, and a detection mechanism slidably connected to the bottom surface of the truss along the length direction;

[0006] The detection mechanism includes two slide rails, which are respectively installed on opposite sides of the bottom surface of the truss. Sliders are slidably connected to the slide rails. A protective cover with an opening at the bottom is installed between the two sliders. A sleeve is provided at the top of the inner cavity of the protective cover. Limiting holes are opened through the opposite side walls of the sleeve. A fixed column is movably inserted into the inner cavity of the sleeve. An elastic limiting column is provided on the side wall of the fixed column, which cooperates with the limiting hole. An ultrasonic level gauge is fixedly connected to the end of the fixed column away from the sleeve, and the detection end of the ultrasonic level gauge faces the tailings dam. When the ultrasonic level gauge is installed, the elastic limiting column is inserted into the limiting hole.

[0007] Preferably, the sleeve sidewall is provided with a push pin assembly for pushing the elastic limiting post out of the limiting hole. The push pin assembly includes a sleeve that is hollow inside and has openings at both ends. The sleeve and the limiting hole are coaxially arranged. A limiting block is slidably connected to the inner sidewall of the sleeve. A push pin is provided on the side of the limiting block near the sleeve. A connecting post is provided on the side of the limiting block away from the sleeve. One end of the connecting post passes through the end of the sleeve and is connected to a pressing block. The cross-section of the pressing block is larger than the cross-section of the sleeve.

[0008] Preferably, the inner wall of the sleeve is provided with a limiting groove along the height direction, and the outer wall of the fixing column is provided with a limiting strip that cooperates with the limiting groove.

[0009] Preferably, a spring is sleeved on the outer wall of the connecting column, and the spring is located between the end of the sleeve and the extrusion block.

[0010] Preferably, the protective cover and the slider are detachably connected by a connector. The connector includes two first connecting rods and two second connecting rods. The two first connecting rods are symmetrically installed on opposite side walls of the protective cover. The two second connecting rods are respectively installed on the two sliders and are correspondingly arranged with the first connecting rods. The outer wall of the second connecting rod is threaded with a connecting sleeve, and the connecting sleeve is threaded with the first connecting rod on the same side.

[0011] Preferably, the end of the second connecting rod away from the protective cover passes through the side wall of the slider and is rotatably connected to the slider. The slider has a hollow structure and is provided with a limiting component that cooperates with the second connecting rod. The limiting component is used to limit and fix the second connecting rod.

[0012] Preferably, the limiting component includes a gear and two limiting rods, with an arc-shaped limiting block slidably connected between the two limiting rods. The arc-shaped limiting block is located below the gear. The side of the arc-shaped limiting block closest to the gear is provided with a locking tooth that cooperates with the gear. The side of the arc-shaped limiting block furthest from the gear is rotatably connected with a bolt. One end of the bolt passes through the bottom of the slider and is threadedly connected to the slider.

[0013] Preferably, a first magnet and a second magnet are respectively provided at the top and bottom of the inner cavity of the slider, and a third magnet is provided on the outer wall of the second connecting rod to cooperate with the first magnet and the second magnet. When the third magnet is attracted to the second magnet, the ultrasonic level gauge is vertically downward, and when the third magnet is attracted to the first magnet, the ultrasonic level gauge is flipped upward.

[0014] Preferably, the protective cover includes a first cover, a second cover, and a third cover that are slidably connected in sequence. The first cover is connected to a slider, and the top of the first cover is provided with a cover plate. After the third cover and the second cover are sequentially retracted into the first cover, the sleeve extends out of the opening of the first cover.

[0015] A construction method for a tailings dry beach length measuring device includes the following steps:

[0016] S1: Excavation of foundation pits: After selecting the monitoring points according to the monitoring requirements, excavate a foundation pit with a length and width of 100cm*100cm on each side of the tailings dam, and the depth of the foundation pit is 50cm below the frost layer.

[0017] S2: Install template: Install templates made of plywood on the inner wall of the foundation pit;

[0018] S3: Arrange the reinforcing mesh: Arrange the reinforcing mesh inside the formwork, with a spacing of 10cm between the reinforcing bars, and tie them securely with tie wire;

[0019] S4: Making the ground cage: Use steel bars of not less than 20mm to bend into L-shapes, weld them into a 36cm*36cm*80cm cuboid, and weld 24mm reinforcing screws to the top of the steel bars to make the ground cage;

[0020] S5: Concrete pouring: The concrete strength shall not be less than C30. When the concrete is poured to 30cm from the plane, the ground cage shall be installed and the ground cage shall be placed in the middle of the foundation pit. Continue pouring until the foundation pit is filled and the reinforcing screws extend out of the ground.

[0021] S6: Installation of the testing mechanism: Install the testing mechanism on a 20cm×20cm truss and connect both ends of the truss to the two columns respectively;

[0022] S7: Auxiliary equipment installation: Install the equipment control box and lightning rod on a set of columns.

[0023] S8: Column installation: Personnel on both sides use 7.7mm steel wire ropes and locks to fix them to the truss. Simultaneously pull the steel wire ropes on both sides to erect the column. At the same time, personnel align the flange holes of the column with the reinforcing screws, lock them in place, and complete the construction.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] The beneficial effects of this invention are as follows: By setting up mutually cooperating sliders and slide rails, the ultrasonic level gauge can slide to different positions for detection, improving detection accuracy. Furthermore, when the ultrasonic level gauge needs maintenance or replacement, it can be slid to a position close to the column, facilitating maintenance and replacement by personnel. Simultaneously, the ultrasonic level gauge and sleeve are installed by interlocking elastic limiting posts and limiting holes. This allows for easy disassembly by using external tools to separate the elastic limiting posts from the limiting holes, and installation is similarly simple and quick, requiring only the insertion of the fixing post into the sleeve and the insertion of the elastic limiting post into the limiting hole. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the measuring device of the present invention;

[0028] Figure 2 This is a side sectional view of the measuring device of the present invention;

[0029] Figure 3 This is a schematic diagram of the detection mechanism in this invention;

[0030] Figure 4 This is a front view of the protective cover and connector in this invention.

[0031] Figure 5 This is a schematic diagram of the ultrasonic level gauge in this invention;

[0032] Figure 6 This is a schematic diagram of the internal structure of the protective cover in this invention;

[0033] Figure 7 for Figure 6 Enlarged structural diagram at point A;

[0034] Figure 8 This is a schematic diagram of the limiting component in this invention.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Column; 2. Truss; 3. Detection mechanism; 31. Slide rail; 32. Slider; 33. Protective cover; 331. First cover; 332. Third cover; 333. Third cover; 34. Sleeve; 341. Limiting groove; 35. Limiting hole; 36. Fixing column; 361. Limiting strip; 37. Elastic limiting column; 38. Ultrasonic level gauge; 39. Pin assembly; 391. Sleeve; 392. Limiting block; 393. Ejector pin; 394. Connecting post; 395. Pressing block; 396. Spring; 310. Connector; 3101. First connecting rod; 3102. Second connecting rod; 3103. Connecting sleeve; 311. Limiting assembly; 3111. Gear; 3112. Limiting rod; 3113. Arc-shaped limiting block; 3114. Bolt; 312. First magnet; 313. Second magnet; 314. Third magnet. Detailed Implementation

[0037] 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.

[0038] Please refer to Figure 1-8 As shown: One technical solution provided by this invention is as follows:

[0039] A tailings dry beach length measuring device includes columns 1 installed on both sides of the tailings dam, a truss 2 installed on the top between the two columns 1, and a detection mechanism 3 slidably connected to the bottom surface of the truss 2 along the length direction.

[0040] The detection mechanism 3 includes two slide rails 31, which are respectively installed on opposite sides of the bottom surface of the truss 31. Slider 32 is slidably connected to the slide rails 31. A protective cover 33 with an opening at the bottom is installed between the two sliders 32. A sleeve 34 is provided at the top of the inner cavity of the protective cover 33. Limiting holes 35 are opened through the opposite side walls of the sleeve 34. A fixing post 36 is movably inserted into the inner cavity of the sleeve 34. An elastic limiting post 37 that cooperates with the limiting hole 35 is provided on the side wall of the fixing post 36. An ultrasonic level gauge 38 is fixedly connected to the end of the fixing post 36 away from the sleeve 34, and the detection end of the ultrasonic level gauge 38 faces the tailings dam. When the ultrasonic level gauge 38 is installed, the elastic limiting post 37 is inserted into the limiting hole 35.

[0041] As can be seen from the above description, the beneficial effects of the present invention are as follows: by setting up mutually cooperating sliders and slide rails, the ultrasonic level gauge can slide to different positions for detection, thereby improving the detection accuracy. When the ultrasonic level gauge needs maintenance or replacement, it can be slid to a position close to the column, which facilitates the maintenance and replacement of the ultrasonic level gauge by the staff. At the same time, the ultrasonic level gauge and the sleeve are installed by interlocking elastic limiting posts and limiting holes. This means that during disassembly, only external tools are needed to separate the elastic limiting posts from the limiting holes to remove the ultrasonic level gauge. During installation, only the fixing post needs to be inserted into the sleeve and the elastic limiting post needs to be inserted into the limiting hole. The entire disassembly and assembly process is simple and quick.

[0042] Specifically, the sleeve 34 is provided with a pin assembly 39 on its side wall to push the elastic limiting post 37 out of the limiting hole 35. The pin assembly 39 includes a hollow sleeve 391 with openings at both ends. The sleeve 391 is coaxially arranged with the limiting hole 35. A limiting block 392 is slidably connected to the inner side wall of the sleeve 391. A pin 393 is provided on the side of the limiting block 392 near the sleeve 34. A connecting post 394 is provided on the side of the limiting block 392 away from the sleeve 34. One end of the connecting post 394 passes through the end of the sleeve 391 and is connected to a pressing block 395. The cross-section of the pressing block 395 is larger than the cross-section of the sleeve 391.

[0043] As can be seen from the above description, when disassembling the ultrasonic level gauge, the operator can squeeze the squeezing blocks on both sides to drive the column, limit block and ejector pin to slide, thereby pushing the elastic limit pin out of the limit hole through the ejector pin, and finally removing the fixed column. The entire disassembly process can be completed without the operator using external tools, greatly reducing the cumbersomeness of disassembly.

[0044] Specifically, a limiting groove 341 is provided on the inner wall of the sleeve 34 along the height direction, and a limiting strip 361 is provided on the outer wall of the fixing column 36 to cooperate with the limiting groove 341.

[0045] As can be seen from the above description, the cooperation between the limiting strip and the limiting groove ensures that the angle of the fixed post will not change when it is inserted, so that the elastic limiting post can be accurately aligned with the limiting hole without adjustment.

[0046] Specifically, a spring 396 is sleeved on the outer wall of the connecting column 394, and the spring 396 is located between the end of the sleeve 391 and the extrusion block 395.

[0047] As can be seen from the above description, the spring setting allows the compression block to return to its original position under the action of the spring's restoring force after the ejector pin pushes out the elastic limiting post, thereby avoiding interference from the ejector pin when inserting the elastic limiting post.

[0048] Specifically, the protective cover 33 and the slider 32 are detachably connected by a connector 310. The connector 310 includes two first connecting rods 3101 and two second connecting rods 3102. The two first connecting rods 3101 are symmetrically installed on opposite side walls of the protective cover 33. The two second connecting rods 3102 are respectively installed on the two sliders 32 and are correspondingly arranged with the first connecting rods 3101. The outer wall of the second connecting rod 3102 is threaded with a connecting sleeve 3103, and the connecting sleeve 3103 is threaded with the first connecting rod 3101 on the same side.

[0049] As can be seen from the above description, the detachable connection between the protective cover and the slider allows the protective cover to be disassembled and replaced after aging over a period of use. Furthermore, the connection method using the first connecting rod, the second connecting rod, and the connecting sleeve not only ensures the connection strength of the protective cover but also makes the disassembly and assembly process simple and convenient.

[0050] Specifically, the end of the second connecting rod 3102 away from the protective cover 33 passes through the side wall of the slider 32 and is rotatably connected to the slider 32. The slider 33 has a hollow structure inside and is provided with a limiting component 311 that cooperates with the second connecting rod 3102. The limiting component 311 is used to limit and fix the second connecting rod 3102.

[0051] As described above, the second connecting rod and the slider are rotatably connected, allowing the protective cover to rotate along the slider. This allows the protective cover to be rotated during the assembly and disassembly of the ultrasonic level gauge, so that the opening of the protective cover faces upwards, thus facilitating the assembly and disassembly of the ultrasonic level gauge. Furthermore, the setting of the limiting component ensures that the angle of the protective cover is fixed, preventing the protective cover from shaking.

[0052] Specifically, the limiting component 311 includes a gear 3111 and two limiting rods 3112. An arc-shaped limiting block 3113 is slidably connected between the two limiting rods 3112, and the arc-shaped limiting block 3113 is located below the gear 3111. The side of the arc-shaped limiting block 3113 near the gear 3111 is provided with a locking tooth that cooperates with the gear 3111. The side of the arc-shaped limiting block 3113 away from the gear 3111 is rotatably connected with a bolt 3114. One end of the bolt 3114 passes through the bottom of the slider 32 and is threadedly connected to the slider 32.

[0053] As can be seen from the above description, the interlocking function between the locking teeth and the gears can ensure the fixation of the gears, thereby ensuring the fixation of the angle of the protective cover. The height of the arc-shaped limiting block can be adjusted by the bolts, allowing the arc-shaped limiting block to slide up and down along the limiting rod, thus achieving the interlocking of the locking teeth and the gears. The entire limiting mechanism is firmly positioned, the protective cover will not shake, and the operation is simple.

[0054] Specifically, the top and bottom of the inner cavity of the slider 32 are respectively provided with a first magnet 312 and a second magnet 313, and the outer wall of the second connecting rod 3102 is provided with a third magnet 314 that cooperates with the first magnet 312 and the second magnet 313. When the third magnet 314 is attracted to the second magnet 313, the ultrasonic level gauge 38 is vertically downward. When the third magnet 314 is attracted to the first magnet 312, the ultrasonic level gauge 38 is rotated upward by 135 degrees.

[0055] As can be seen from the above description, the cooperation of the third magnet and the first magnet allows the angle of the protective cover to be fixed when disassembling the ultrasonic level gauge, eliminating the need for the operator to hold the protective cover at all times. After the ultrasonic level gauge is installed, the cooperation of the third magnet and the second magnet allows the installed ultrasonic level gauge to be positioned when it is flipped downwards, thus ensuring that the detection end of the ultrasonic level gauge is vertically downwards. Finally, the limiting component is used for limiting and fixing.

[0056] Specifically, the protective cover 33 includes a first cover 331, a second cover 332 and a third cover 333 that are slidably connected in sequence. The first cover 331 is connected to the slider 32 and the top of the first cover 331 is provided with a cover plate. After the third cover 332 and the second cover 331 are successively retracted into the first cover 331, the sleeve 34 extends out of the opening of the first cover 331.

[0057] As can be seen from the above description, by dividing the cover into multiple retractable sections, the protective cover can be retracted when disassembling and assembling the ultrasonic level gauge, thereby exposing the connection position of the ultrasonic level gauge outside the cover, which facilitates the disassembly and assembly operations of the operator.

[0058] Another technical solution provided by this invention is:

[0059] A construction method for a tailings dry beach length measuring device includes the following steps:

[0060] S1: Excavation of foundation pits: After selecting the monitoring points according to the monitoring requirements, excavate a foundation pit with a length and width of 100cm*100cm on each side of the tailings dam, and the depth of the foundation pit is 50cm below the frost layer.

[0061] S2: Install template: Install templates made of plywood on the inner wall of the foundation pit;

[0062] S3: Arrange the reinforcing mesh: Arrange the reinforcing mesh inside the formwork, with a spacing of 10cm between the reinforcing bars, and tie them securely with tie wire;

[0063] S4: Making the ground cage: Use steel bars of not less than 20mm to bend into L-shapes, weld them into a 36cm*36cm*80cm cuboid, and weld 24mm reinforcing screws to the top of the steel bars to make the ground cage;

[0064] S5: Concrete pouring: The concrete strength shall not be less than C30. When the concrete is poured to 30cm from the plane, the ground cage shall be installed and the ground cage shall be placed in the middle of the foundation pit. Continue pouring until the foundation pit is filled and the reinforcing screws extend out of the ground.

[0065] S6: Installation of the testing mechanism: Install the testing mechanism on a 20cm×20cm truss and connect both ends of the truss to the two columns respectively;

[0066] S7: Auxiliary equipment installation: Install the equipment control box and lightning rod on a set of columns.

[0067] S8: Column installation: Personnel on both sides use 7.7mm steel wire ropes and locks to fix them to the truss. Simultaneously pull the steel wire ropes on both sides to erect the column. At the same time, personnel align the flange holes of the column with the reinforcing screws, lock them in place, and complete the construction.

[0068] After the above construction process is completed, the installation location is changed from the soft, dry beach surface to a solidly poured foundation pit, which completely solves the personal safety problems caused by the traditional installation method. Furthermore, after the truss and the column are connected, the column is erected for installation, avoiding the need for construction workers to work at heights and the need for large equipment such as cranes, thus reducing construction costs and improving construction safety.

[0069] Embodiment 1 of the present invention is as follows:

[0070] Please refer to Figure 1 As shown: A tailings dry beach length measuring device includes columns 1 installed on both sides of the tailings dam, a truss 2 installed on the top between the two columns 1, and a detection mechanism 3 slidably connected to the bottom surface of the truss 2 along the length direction.

[0071] Please refer to Figure 2 and 3As shown: The detection mechanism 3 includes two slide rails 31, which are electric slide rails. The control end of the electric slide rail is set on the column. The two slide rails 31 are respectively installed on opposite sides of the bottom surface of the truss 2. Sliding blocks 32 are slidably connected to the slide rails 31. A protective cover 33 with an opening at the bottom is installed between the two sliding blocks 32. A sleeve 34 is set at the top of the inner cavity of the protective cover 33. Limiting holes 35 are opened through the opposite side walls of the sleeve 34. A fixed column 36 is movably inserted into the inner cavity of the sleeve 34. Furthermore, a limiting groove 341 is provided on the inner wall of the sleeve 34 along the height direction, and a limiting strip 361 that cooperates with the limiting groove 341 is provided on the outer wall of the fixing column 36. An elastic limiting column 37 that cooperates with the limiting hole 35 is provided on the side wall of the fixing column 36. An ultrasonic level gauge 38 is fixedly connected to the end of the fixing column 36 away from the sleeve 34, and the detection end of the ultrasonic level gauge 38 faces the tailings dam. When the ultrasonic level gauge 38 is installed, the elastic limiting column 37 is inserted into the limiting hole 35.

[0072] Please refer to Figure 6 and 7 As shown: In this embodiment, the sleeve 34 is provided with a push pin assembly 39 on its side wall to push the elastic limiting post 37 out of the limiting hole 35. The push pin assembly 39 includes a sleeve 391 that is hollow inside and has openings at both ends. The sleeve 391 is coaxially arranged with the limiting hole 35. A limiting block 392 is slidably connected to the inner side wall of the sleeve 391. A push pin 393 is provided on the side of the limiting block 392 that is close to the sleeve 34. A connecting post 394 is provided on the side of the limiting block 392 that is away from the sleeve 34. One end of the connecting post 394 passes through the end of the sleeve 391 and is connected to a pressing block 395. The cross-section of the pressing block 395 is larger than the cross-section of the sleeve 391. A spring 396 is sleeved on the outer wall of the connecting post 394. The spring 396 is located between the end of the sleeve 391 and the pressing block 395.

[0073] Please refer to Figure 4 As shown: In this embodiment, the protective cover 33 and the slider 32 are detachably connected by a connector 310. The connector 310 includes two first connecting rods 3101 and two second connecting rods 3102. The two first connecting rods 3101 are symmetrically installed on opposite side walls of the protective cover 33. The two second connecting rods 3102 are respectively installed on the two sliders 32 and are correspondingly arranged with the first connecting rods 3101. The outer wall of the second connecting rod 3102 is threaded with a connecting sleeve 3103, and the connecting sleeve 3103 is threaded with the first connecting rod 3101 on the same side.

[0074] Please refer to Figure 8As shown: In this embodiment, the end of the second connecting rod 3102 away from the protective cover 33 passes through the side wall of the slider 32 and is rotatably connected to the slider 32. The slider 33 has a hollow structure and is provided with a limiting component 311 that cooperates with the second connecting rod 3102. The limiting component 311 is used to limit and fix the second connecting rod 3102. The limiting component 311 includes a gear 3111 and two limiting rods 3112. An arc-shaped limiting block 3113 is slidably connected between the two limiting rods 3112 and is located below the gear 3111. The side of the arc-shaped limiting block 3113 near the gear 3111 is provided with a locking tooth that cooperates with the gear 3111. The side of the arc-shaped limiting block 3113 away from the gear 3111 is rotatably connected to a bolt 3114. One end of the bolt 3114 passes through the bottom of the slider 32 and is threadedly connected to the slider 32.

[0075] Please refer to Figure 8 As shown: In this embodiment, in order to ensure that the angle of the ultrasonic level gauge can be fixed during disassembly and assembly, a first magnet 312 and a second magnet 313 are respectively provided at the top and bottom of the inner cavity of the slider 32. A third magnet 314 is provided on the outer wall of the second connecting rod 3102 to cooperate with the first magnet 312 and the second magnet 313. When the third magnet 314 and the second magnet 313 are attracted to each other, the ultrasonic level gauge 38 is vertically downward. When the third magnet 314 and the first magnet 312 are attracted to each other, the ultrasonic level gauge 38 is rotated upward by 135 degrees.

[0076] Please refer to Figure 4 and 6 As shown: In this embodiment, in order to further facilitate the disassembly and assembly of the ultrasonic level gauge and improve the operating space of the operator, the protective cover 33 includes a first cover 331, a second cover 332 and a third cover 333 that are slidably connected in sequence. The first cover 331 is connected to the slider 32 and the top of the first cover 331 is provided with a cover plate. After the third cover 333 and the second cover 332 are successively retracted into the first cover 331, the sleeve 34 extends out of the opening of the first cover 331.

[0077] In this embodiment, a control box for operating the ultrasonic level gauge 38 and the slide rail 31 is fixedly installed on a set of columns 1, and a lightning rod is installed on the top of the set of columns 1 to play a lightning protection role. The lightning rod and the control box are installed on a column that can get power and network nearby.

[0078] The disassembly and assembly process of the detection mechanism in the above-mentioned measuring equipment is as follows:

[0079] When the ultrasonic level gauge 38 needs to be replaced or maintained, the operator first starts the electric slide rail 31 through the control box, and slides the slider 32, protective cover 33 and ultrasonic level gauge 38 to a position close to the column 1 and located in the hollow of the truss 2.

[0080] Then the operator climbs up the column 1 using the climbing ladder and rotates the bolt 3114 at the bottom of the slider 32, causing the arc-shaped limiting block 3113 to slide downwards and disengage from the gear 3111. Then, the protective cover 33 and the ultrasonic level gauge 38 are rotated along the connector 310. During the rotation of the protective cover 33, when the third magnet 314 and the first magnet 312 come into contact and attract each other, the opening of the protective cover 33 is set to face upwards, and the protective cover 33 is kept stable by the attraction between the third magnet 314 and the first magnet 312.

[0081] Then the operator retracts the third cover 333 and the second cover 332 in the protective cover 33 into the first cover 331, so that the ultrasonic level gauge 38 is exposed outside the protective cover 33, making it convenient for the operator to operate. The operator squeezes the squeezing blocks 395 on both sides of the sleeve 34 with both hands. The squeezing blocks 395 push the limiting block 392 and the ejector pin 393 to slide through the connecting column 394, so that the elastic limiting columns 37 on both sides are pushed out of the limiting hole 35 through the ejector pin 393. Then the ultrasonic level gauge 38 and the fixing column 36 are removed and replaced.

[0082] When installing a new ultrasonic level gauge 38, the operator aligns the limiting strip 361 of the fixing post 36 with the limiting groove 341 of the sleeve 34 and inserts it, so that the elastic limiting posts 37 on both sides of the fixing post 36 are aligned with the limiting holes 35. After the elastic limiting posts 37 slide to the position of the limiting holes 35, the elastic limiting posts 37 are inserted into the limiting holes 35, thus completing the installation of the ultrasonic level gauge 38.

[0083] Finally, extend the third cover 333 and the second cover 332 of the protective cover 33 to protect the ultrasonic level gauge 38 inside the protective cover 33. Then, flip the protective cover 33. When the third magnet 314 contacts the second magnet 313, it indicates that the ultrasonic level gauge 38 has been flipped to the vertically downward position. The operator then rotates the bolt 3114 to drive the arc-shaped limit block 3113 to slide upward along the limit rod 3112 and engage with the gear 3111 to complete the locking and fixation, preventing the protective cover 33 and the ultrasonic level gauge 38 from shaking. Finally, slide the ultrasonic level gauge 38 back to the detection position. During the detection, the ultrasonic level gauge 38 can also be slid to different positions for detection.

[0084] When the protective cover 33 also needs to be replaced, the operator rotates the connecting sleeve 3103 to disengage the connecting sleeve 3103 from the first connecting rod 3101, thereby removing and replacing the protective cover 33.

[0085] Embodiment 2 of the present invention is as follows:

[0086] The measuring device of Example 1 is constructed by the following method, including the following steps:

[0087] S1: Excavation of foundation pits: After selecting the monitoring points according to the monitoring requirements, excavate a foundation pit with a length and width of 100cm*100cm on each side of the tailings dam, and the depth of the foundation pit is 50cm below the frost layer.

[0088] S2: Install template: Install templates made of plywood on the inner wall of the foundation pit;

[0089] S3: Arrange the reinforcing mesh: Arrange the reinforcing mesh inside the formwork, with a spacing of 10cm between the reinforcing bars, and tie them securely with tie wire;

[0090] S4: Making the ground cage: Use steel bars of not less than 20mm to bend into L-shapes, weld them into a 36cm*36cm*80cm cuboid, and weld 24mm reinforcing screws to the top of the steel bars to make the ground cage;

[0091] S5: Concrete pouring: The concrete strength shall not be less than C30. When the concrete is poured to 30cm from the plane, the ground cage shall be installed and the ground cage shall be placed in the middle of the foundation pit. Continue pouring until the foundation pit is filled and the reinforcing screws extend out of the ground.

[0092] S6: Installation of the testing mechanism: Install the testing mechanism on a 20cm×20cm truss and connect both ends of the truss to the two columns respectively;

[0093] When installing the testing mechanism, first install the slide rail at the bottom of the truss with bolts, and then install the control equipment of the slide rail at the top of the column with the control box. Then install the protective cover and ultrasonic level gauge between the two sets of slide rails.

[0094] S7: Auxiliary equipment installation: Install the equipment control box and lightning rod on a set of columns;

[0095] S8: Column installation: Personnel on both sides use 7.7mm steel wire ropes and locks to fix them to the truss. Simultaneously pull the steel wire ropes on both sides to erect the column. At the same time, personnel align the flange holes of the column with the reinforcing screws, lock them in place, and complete the construction.

[0096] Furthermore, when installing the control box and lightning rod on a set of columns 1, before pouring cement on the set of columns 1, drive three copper rods, each 50cm long and 1cm in diameter, into the bottom of the foundation pit in a triangular formation. Connect the three copper rods with a grounding copper wire to form a triangle. The copper wire should be no less than 4 square millimeters. Then, run the grounding copper wire through a conduit out of the foundation pit and connect it to the lightning rod.

[0097] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0098] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0099] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may 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 dry beach length measuring device, comprising columns (1) installed on both banks of a tailings dam, and a truss (2) installed on the top between two of the columns (1), characterized in that: The bottom surface of the truss (2) is slidably connected to the detection mechanism (3) along the length direction; The detection mechanism (3) includes two slide rails (31), which are respectively installed on opposite sides of the bottom surface of the truss (2). A slider (32) is slidably connected on the slide rail (31). A protective cover (33) with an opening at the bottom is installed between the two sliders (32). A sleeve (34) is provided at the top of the inner cavity of the protective cover (33). Limiting holes (35) are opened through the opposite side walls of the sleeve (34). A fixed column (36) is movably inserted into the inner cavity of the sleeve (34). An elastic limiting column (37) that cooperates with the limiting hole (35) is provided on the side wall of the fixed column (36). An ultrasonic level gauge (38) is fixedly connected to the end of the fixed column (36) away from the sleeve (34). The detection end of the ultrasonic level gauge (38) faces the tailings pond. When the ultrasonic level gauge (38) is installed, the elastic limiting column (37) is inserted into the limiting hole (35). The protective cover (33) and the slider (32) are detachably connected by a connector (310). The connector (310) includes two first connecting rods (3101) and two second connecting rods (3102). The two first connecting rods (3101) are symmetrically installed on opposite side walls of the protective cover (33). The two second connecting rods (3102) are respectively installed on the two sliders (32) and are correspondingly arranged with the first connecting rods (3101). The outer wall of the second connecting rod (3102) is threaded with a connecting sleeve (3103), and the connecting sleeve (3103) is threaded with the first connecting rod (3101) on the same side. The end of the second connecting rod (3102) away from the protective cover (33) passes through the side wall of the slider (32) and is rotatably connected to the slider (32). The slider (32) has a hollow structure inside and is provided with a limiting component (311) that cooperates with the second connecting rod (3102). The limiting component (311) is used to limit and fix the second connecting rod (3102). The top and bottom of the inner cavity of the slider (32) are respectively provided with a first magnet (312) and a second magnet (313). The outer wall of the second connecting rod (3102) is provided with a third magnet (314) that cooperates with the first magnet (312) and the second magnet (313). When the third magnet (314) is attracted to the second magnet (313), the ultrasonic level gauge (38) is vertically downward. When the third magnet (314) is attracted to the first magnet (312), the ultrasonic level gauge (38) is rotated upward by 135 degrees.

2. The tailings dry beach length measuring device according to claim 1, characterized in that: The sleeve (34) is provided with a push pin assembly (39) on its side wall to push the elastic limiting post (37) out of the limiting hole (35). The push pin assembly (39) includes a sleeve (391) that is hollow inside and has openings at both ends. The sleeve (391) is coaxially arranged with the limiting hole (35). A limiting block (392) is slidably connected to the inner side wall of the sleeve (391). A push pin (393) is provided on the side of the limiting block (392) near the sleeve (34). A connecting post (394) is provided on the side of the limiting block (392) away from the sleeve (34). One end of the connecting post (394) passes through the end of the sleeve (391) and is connected to a pressing block (395). The cross-section of the pressing block (395) is larger than the cross-section of the sleeve (391).

3. The tailings dry beach length measuring device according to claim 1, characterized in that: The inner wall of the sleeve (34) is provided with a limiting groove (341) along the height direction, and the outer wall of the fixing column (36) is provided with a limiting strip (361) that cooperates with the limiting groove (341).

4. The tailings dry beach length measuring device according to claim 2, characterized in that: A spring (396) is fitted on the outer wall of the connecting column (394), and the spring (396) is located between the end of the sleeve (391) and the extrusion block (395).

5. The tailings dry beach length measuring device according to claim 1, characterized in that: The limiting component (311) includes a gear (3111) and two limiting rods (3112). An arc-shaped limiting block (3113) is slidably connected between the two limiting rods (3112), and the arc-shaped limiting block (3113) is located below the gear (3111). The side of the arc-shaped limiting block (3113) near the gear (3111) is provided with a locking tooth that cooperates with the gear (3111). The side of the arc-shaped limiting block (3113) away from the gear (3111) is rotatably connected with a bolt (3114). One end of the bolt (3114) passes through the bottom of the slider (32) and is threadedly connected to the slider (32).

6. The tailings dry beach length measuring device according to claim 1, characterized in that: The protective cover (33) includes a first cover (331), a second cover (332) and a third cover (333) that are slidably connected in sequence. The first cover (331) is connected to the slider (32), and the top of the first cover (331) is provided with a cover plate. After the third cover (333) and the second cover (332) are successively retracted into the first cover (331), the sleeve (34) extends out of the opening of the first cover (331).

7. A construction method for a tailings dry beach length measuring device according to any one of claims 1-6, characterized in that: Includes the following steps: S1: Excavation of foundation pits: After selecting the monitoring points according to the monitoring requirements, excavate a foundation pit with a length and width of 100cm×100cm on each side of the tailings dam, and the depth of the foundation pit is 50cm below the frost layer. S2: Install template: Install templates made of plywood on the inner wall of the foundation pit; S3: Arrange the reinforcing mesh: Arrange the reinforcing mesh inside the formwork, with a spacing of 10cm between the reinforcing bars, and tie them securely with tie wire; S4: Making the ground cage: Use steel bars of not less than 20mm to bend into L-shapes, weld them into a 36cm×36cm×80cm cuboid, and weld 24mm reinforcing screws to the top of the steel bars to make the ground cage. S5: Concrete pouring: The concrete strength shall not be less than C30. When the concrete is poured to 30cm from the plane, the ground cage shall be installed and the ground cage shall be placed in the middle of the foundation pit. Continue pouring until the foundation pit is filled and the reinforcing screws extend out of the ground. S6: Installation of the testing mechanism: Install the testing mechanism on a 20cm×20cm truss and connect both ends of the truss to the two columns respectively; S7: Auxiliary equipment installation: Install the equipment control box and lightning rod on a set of columns; S8: Column installation: Personnel on both sides use 7.7mm steel wire ropes and locks to fix them to the truss. Simultaneously pull the steel wire ropes on both sides to erect the column. At the same time, personnel align the flange holes of the column with the reinforcing screws, lock them in place, and complete the construction.

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