Vertical shaft underground water level detection device convenient for adjusting detection depth
By introducing lifting beams and chute mechanisms into the vertical shaft ground level detection device, combined with heavy objects that can be filled with sand, the problem of difficulty in detection depth adjustment in the prior art is solved, and convenient and high-precision water level monitoring is achieved.
Patent Information
- Application Number
- CN202421644594.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The prior art is difficult to adjust the detection depth easily, resulting in the floating ball falling off the water surface or overfloating, and the water level in the shaft cannot be detected, affecting measurement accuracy and safety.
A device including a bracket, pulley rope, float ball and weight is designed to adjust the pulley rope length through lifting beam and chute mechanism so that the float ball is always maintained on the water surface and the weight is adjusted through a hollow barrel filled with sand and soil. Weight of the object ensures flexibility in detection depth.
It realizes convenient adjustment of detection depth when water level changes, ensures measurement accuracy and safety, and is suitable for groundwater level monitoring of coal mines.
Smart Images
Figure CN222364634U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to two vertical shaft groundwater level detection devices which are convenient for adjusting the detection depth. Background Art
[0002] Water often gathers in low-lying areas underground in coal mines. If the water level is allowed to rise without drainage, the low-lying tunnels may be flooded, affecting traffic and ventilation, and in serious cases, causing safety accidents.
[0003] The Chinese utility model patent with the authorization announcement number CN 215217755 U on December 17, 2021 discloses a device for measuring the water level of the decompression shaft of the tailings pond, which is characterized by comprising a bracket arranged at the wellhead of the decompression shaft, two pulleys arranged on the bracket, a steel rope wound on the two pulleys, a float end and a weight end respectively arranged at both ends of the steel rope, and a scale vertically arranged along the wall of the decompression shaft. The float end includes two floats and a weight, and the weight end includes an iron ball. The utility model installs a "float-weight" device on the shaft, draws a scale on the shaft, connects the float and the weight with a steel rope through a pulley, and uses the buoyancy of water on the float. When the water level changes, the water level value in the shaft can be accurately measured by observing the scale value of the weight. The device has low investment cost, long service life, high measurement accuracy, and is convenient and fast. The water level range detected by the device is equal to the scale range on its shaft.
[0004] When the water level in the shaft to be tested drops beyond the limit, the float drops beyond the limit, causing the float to detach from the groundwater surface and making it impossible to continue to detect the water level in the shaft. When the water level in the shaft to be tested rises beyond the limit, the float rises beyond the limit, causing the float to float up too much, causing the heavy object to drop too much and fall to the floor of the coal mine, making it impossible to continue to detect the water level in the shaft. In these two cases, the length of the steel rope must be extended or shortened accordingly to continue to detect the groundwater level in the shaft, which is very troublesome.
[0005] The prior art urgently needs a vertical shaft groundwater level detection device that is easy to adjust the detection depth. Summary of the invention
[0006] The technical problem to be solved by the utility model is how to overcome the above-mentioned defects of the prior art and provide a vertical shaft groundwater level detection device which is convenient for adjusting the detection depth.
[0007] In order to solve the above technical problems, the present invention provides a technical solution 1 for a vertical shaft underground water level detection device which is easy to adjust the detection depth: it comprises a bracket, a pulley rope, a floating ball and a weight, at least two fixed pulleys are arranged on the upper part of the bracket, the floating ball vertically hangs down into the vertical shaft to be measured, one end of the pulley rope is tied to the floating ball, and the other end crosses the above fixed pulley, the weight is tied to the other end of the pulley rope, a pointer is arranged on the pulley rope above the weight, and a scale is arranged on the outside of the pointer, characterized in that: the bracket comprises two columns and a top beam connecting the top ends of the columns, the two columns are respectively provided with a lifting beam and a fixed cross beam from top to bottom, slide grooves are respectively arranged at both ends of the lifting beam, and can be clamped on the two columns movably up and down through the two slide grooves, the middle of the lifting beam and the A vertical through hole is respectively opened in the middle of the fixed beam, a wire rod is passed through the vertical through hole of the lifting beam, and the lower end of the wire rod is connected with an optical axis, which is passed through the vertical through hole of the fixed beam. An annular boss is provided on the optical axis below the fixed beam, and a thrust bearing is sleeved on the optical axis between the annular boss and the fixed beam, and the thrust bearing is clamped between the annular boss and the fixed beam. A wire nut is also sleeved on the wire rod, and the nut is fixed on the lifting beam. N reversing fixed pulleys are provided on the top beam, and N+1 semi-moving pulleys are provided on the lifting beam. The pulley rope first passes around the fixed pulley above the vertical shaft to be tested, and then passes around each semi-moving pulley and the reversing fixed pulley in turn, and finally passes around the fixed pulley on the other side of the upper part of the bracket, where N is a positive integer.
[0008] With this design, when the water level in the shaft to be tested drops beyond the limit, the length of the pulley rope in the bracket can be shortened by rotating the screw rod through the handwheel or handle to appropriately raise the height of the lifting beam, so that the float will fall back to the groundwater surface of the shaft to be tested, thereby continuing to detect the groundwater level.
[0009] When the water level in the shaft to be tested rises above the limit, more pulley ropes can be put into the bracket by rotating the screw rod through the handwheel or handle to appropriately lower the height of the lifting beam, so that the weight can be lifted again and the groundwater level can continue to be tested.
[0010] As an optimization, the weight is a hollow barrel that can be filled with sand and soil, and the weight of the weight can be adjusted by increasing or decreasing the amount of sand and soil. This design makes adjustment easy.
[0011] The second technical solution of the vertical shaft groundwater level detection device which is easy to adjust the detection depth: it includes a bracket, a pulley rope, a floating ball and a weight, at least two fixed pulleys are arranged on the upper part of the bracket, the floating ball vertically hangs down into the vertical shaft to be tested, one end of the pulley rope is tied to the floating ball, and the pulley rope crosses the above-mentioned fixed pulley, which is characterized in that: a side convex beam is arranged on one side of the top of the bracket, a movable pulley is arranged under the side convex beam, the bracket includes two columns and a top beam connecting the top ends of the columns, the two columns are respectively provided with a lifting beam and a fixed crossbeam from top to bottom, slide grooves are respectively arranged at both ends of the lifting beam, and can be movably clamped on the two columns up and down through the two slide grooves, vertical through holes are respectively opened in the middle of the lifting beam and the middle of the fixed crossbeam, and the vertical through holes of the lifting beam are A wire rod is passed through, and an optical axis is connected to the lower end of the wire rod. The optical axis is passed through the vertical through hole of the fixed beam. An annular boss is provided on the optical axis below the fixed beam, and a thrust bearing is sleeved on the optical axis between the annular boss and the fixed beam. The thrust bearing is clamped between the annular boss and the fixed beam. A wire nut is also sleeved on the wire rod, and the nut is fixed on the lifting beam. N reversing fixed pulleys are provided on the top beam, and N+1 semi-movable pulleys are provided on the lifting beam. The other end of the pulley rope first passes around the fixed pulley above the vertical shaft to be measured, and then passes around each semi-moving pulley, the reversing fixed pulley and the fixed pulley on the other side of the upper part of the bracket in turn, and finally passes around the movable pulley and is fixed on the side convex beam. A pointer is provided on the weight, and a ruler is provided on the outside of the pointer, where N is a positive integer.
[0012] In the past, the ratio of the scale length to the water level detection range was 1:1. In actual applications, when the mine has a roof height limit, the insufficient roof height will affect the scale display, thereby affecting the use of the water level monitoring equipment and limiting the monitoring range of the water level monitoring equipment. In the second technical solution of the utility model, in the same time period, the height difference of the groundwater level rise and fall: the pointer movement range = 2:1. With this design, the same length of the scale can measure a wider range of water level changes.
[0013] As an optimization, the weight is a hollow barrel that can be filled with sand and soil, and the weight of the weight can be adjusted by increasing or decreasing the amount of sand and soil. Such a design is convenient for adjustment.
[0014] The utility model discloses a vertical shaft groundwater level detection device which is convenient for adjusting the detection depth, has a simple structure, is convenient for adjustment, and is suitable for detecting the change of the groundwater level in the vertical shaft of a coal mine. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The following is a further description of the utility model of the vertical shaft groundwater level detection device which is convenient for adjusting the detection depth in conjunction with the accompanying drawings:
[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the vertical shaft groundwater level detection device which is convenient for adjusting the detection depth;
[0017] Figure 2 It is a structural schematic diagram of implementation mode 2 of the vertical shaft groundwater level detection device which is convenient for adjusting the detection depth.
[0018] In the figure: 1 is a bracket, 2 is a pulley rope, 3 is a floating ball, 4 is a weight, 5 is a fixed pulley, 6 is a vertical shaft to be measured, 7 is a pointer, 8 is a scale, 9 is a reversing fixed pulley, 10 is a semi-movable pulley, 11 is a column, 12 is a top beam, 13 is a lifting beam, 14 is a fixed beam, 15 is a vertical through hole, 16 is a screw rod, 17 is an optical axis, 18 is an annular boss, 19 is a thrust bearing, 20 is a nut, 21 is a slide groove, 22 is a side convex beam, 23 is a movable pulley, 24 is a clamping part, 25 is a fixed ring, 26 is a handle, and 27 is a handwheel. DETAILED DESCRIPTION
[0019] Implementation method 1: Figure 1 As shown, a vertical shaft groundwater level detection device convenient for adjusting the detection depth comprises a bracket 1, a pulley rope 2, a floating ball 3 and a weight 4. At least two fixed pulleys 5 are arranged on the upper part of the bracket 1. The fixed pulley 5 on one side of the bracket 1 is located above the vertical shaft 6 to be measured. The floating ball 3 vertically hangs down into the vertical shaft 6 to be measured and can float on the groundwater surface in the vertical shaft 6 to be measured. One end of the pulley rope 2 is tied to the floating ball 3, and the other end crosses the above-mentioned fixed pulley 5. The weight 4 is tied to the other end of the pulley rope 2. A pointer 7 is fixed on the pulley rope 2 above the weight 6, and a scale 8 is arranged on the outside of the pointer 7. A clamping portion 24 is provided on the pulley rope 2 above the pointer 7. A fixing ring 25 is sleeved on the pulley rope 2 above the clamping portion 24. When the pointer 7 on the pulley rope 2 rises, the clamping portion 24 can be clamped in the fixing ring 25, so as to prevent the pointer 7 from being drawn into the fixed pulley 5 above it due to excessive drop in the groundwater level.
[0020] The feature of the present invention is that the bracket 1 comprises two upright posts 11 and a top beam 12 connected to the top ends of the upright posts 11, the two upright posts 11 are respectively provided with a lifting beam 13 and a fixed beam 14 from top to bottom, slide grooves 21 are respectively provided at both ends of the lifting beam 13, and the lifting beam 13 can be movably clamped on the two upright posts 11 through the two slide grooves 21, vertical through holes 15 are respectively opened in the middle of the lifting beam 13 and in the middle of the fixed beam 14, a threaded rod 16 is passed through the vertical through hole 14 of the lifting beam 13, an optical axis 17 is connected to the lower end of the threaded rod 16, and the optical axis 17 is passed through the vertical through hole 15 of the fixed beam 14, an annular boss 18 is provided on the optical axis 17 below the fixed beam 14, a thrust bearing 19 is sleeved on the optical axis 17 between the annular boss 18 and the fixed beam 14, the thrust bearing 19 is clamped between the annular boss 18 and the fixed beam 14, and a handle 26 is provided at the lower end of the optical axis 17. The screw rod 16 is also covered with a screw nut 20, which is fixed to the lifting beam 13. The top beam 12 is provided with N reversing fixed pulleys 9, and the lifting beam 13 is provided with N+1 semi-movable pulleys 10. The pulley rope 2 first passes around the fixed pulley 5 above the shaft to be tested, and then passes around each semi-movable pulley 10 and the reversing fixed pulley 9 in turn, and finally passes around the fixed pulley 5 on the other side of the upper part of the bracket, wherein N is a positive integer, and N is 1 in the figure.
[0021] The weight 4 is a hollow barrel which can be filled with sand. The weight of the weight 4 can be adjusted by increasing or decreasing the amount of sand. The weight of the weight 4 is less than the weight of the float 3.
[0022] Implementation method 2: Figure 2As shown, the vertical shaft groundwater level detection device which is convenient for adjusting the detection depth comprises a bracket 1, a pulley rope 2, a floating ball 3 and a weight 4, at least two fixed pulleys 5 are arranged on the upper part of the bracket 4, the fixed pulley 5 on one side of the bracket 1 is located above the vertical shaft 6 to be detected, the floating ball 3 is vertically drooped into the vertical shaft 6 to be detected, and can float on the groundwater surface in the vertical shaft 6 to be detected, one end of the pulley rope 2 is tied to the floating ball 3, the pulley rope 2 crosses the fixed pulley 5, and is characterized in that: a side convex beam 22 is arranged on one side of the top of the bracket 1, a movable pulley 23 is arranged below the side convex beam 22, the bracket 1 comprises two columns 11 and a top beam 12 connected to the top of the columns 11, and the two columns 11 are respectively provided with a lifting beam 13 and a fixed beam 23 from top to bottom. The lifting beam 13 is provided with a slide groove 21 at both ends, and can be clamped on the two columns 11 by the two slide grooves 21, respectively. A vertical through hole 15 is opened in the middle of the lifting beam 13 and the middle of the fixed beam 14, and a screw rod 16 is passed through the vertical through hole 15 of the lifting beam 13. The lower end of the screw rod 16 is connected to an optical axis 17, and the optical axis 17 is passed through the vertical through hole 14 of the fixed beam 14. An annular boss 18 is provided on the optical axis 17 below the fixed beam 14. A thrust bearing 19 is sleeved on the optical axis 17 between the annular boss 18 and the fixed beam 14. The thrust bearing 19 is clamped between the annular boss 18 and the fixed beam 14, and a hand wheel 27 is provided at the lower end of the optical axis 17.
[0023] The screw rod 16 is also covered with a screw nut 20, which is fixed to the lifting beam 13. The top beam 13 is provided with N reversing fixed pulleys 9, and the lifting beam 13 is provided with N+1 semi-movable pulleys 10. The other end of the pulley rope 2 first passes around the fixed pulley 5 above the shaft to be measured, and then passes around each semi-movable pulley 10, the reversing fixed pulley 9 and the fixed pulley 5 on the other side of the upper part of the bracket 1 in turn, and finally passes around the movable pulley 23 and is fixed to the side convex beam 22. A pointer 7 is provided on the weight 4, and a scale 8 is provided on the outside of the pointer, where N is a positive integer, and N is 1 in the figure.
[0024] The weight 4 is a hollow barrel filled with sand. The weight of the weight 4 can be adjusted by increasing or decreasing the amount of sand. The weight of the weight 4 and half of the sum of the weight of the movable pulley 23 are less than the weight of the float 3.
Claims
1. A vertical shaft underground water level detection device that is convenient for adjusting the detection depth, comprising a bracket, a pulley rope, a floating ball and a weight, at least two fixed pulleys are arranged on the upper part of the bracket, the floating ball is vertically suspended into the vertical shaft to be detected, one end of the pulley rope is tied to the floating ball, and the other end crosses the fixed pulley, the weight is tied to the other end of the pulley rope, a pointer is arranged on the pulley rope above the weight, and a scale is arranged outside the pointer, characterized in that: The bracket includes two columns and a top beam connecting the tops of the columns. The two columns are respectively provided with a lifting beam and a fixed beam from top to bottom. The two ends of the lifting beam are respectively provided with slide grooves, and the lifting beams can be clamped on the two columns movably up and down through the two slide grooves. Vertical through holes are respectively opened in the middle of the lifting beam and the middle of the fixed beam. A wire rod is passed through the vertical through hole of the lifting beam. The lower end of the wire rod is connected to an optical axis, which is passed through the vertical through hole of the fixed beam. A ring-shaped A boss, a thrust bearing is sleeved on the optical axis between the annular boss and the fixed beam, and the thrust bearing is clamped between the annular boss and the fixed beam. A screw nut is also sleeved on the screw rod, and the screw nut is fixed on the lifting beam. N reversing fixed pulleys are arranged on the top beam, and N+1 semi-movable pulleys are arranged on the lifting beam. The pulley rope first passes around the fixed pulley above the vertical shaft to be tested, and then passes around each semi-movable pulley and the reversing fixed pulley in turn, and finally passes around the fixed pulley on the other side of the upper part of the bracket, wherein N is a positive integer.
2. The vertical shaft groundwater level detection device that is easy to adjust the detection depth according to claim 1 is characterized in that: The weight is a hollow barrel which can be filled with sand and soil. The weight of the weight can be adjusted by increasing or decreasing the amount of sand and soil.
3. A vertical shaft groundwater level detection device that is convenient for adjusting the detection depth, comprising a bracket, a pulley rope, a floating ball and a weight, at least two fixed pulleys are arranged on the upper part of the bracket, the floating ball is vertically suspended into the vertical shaft to be detected, one end of the pulley rope is tied to the floating ball, and the pulley rope crosses the fixed pulley, characterized in that: A side convex beam is provided on one side of the top of the bracket, and a movable pulley is provided under the side convex beam. The bracket includes two columns and a top beam connecting the tops of the columns. The two columns are respectively provided with a lifting beam and a fixed beam from top to bottom. Slide grooves are provided at both ends of the lifting beam, and the two columns can be movably clamped on the two columns up and down through the two slide grooves. Vertical through holes are respectively opened in the middle of the lifting beam and the middle of the fixed beam. A wire rod is passed through the vertical through hole of the lifting beam. The lower end of the wire rod is connected to an optical axis, which is passed through the vertical through hole of the fixed beam. An annular boss is provided on the optical axis below the fixed beam. A thrust bearing is sleeved on the optical axis between the annular boss and the fixed beam, and the thrust bearing is clamped between the annular boss and the fixed beam. A screw nut is also sleeved on the screw rod, and the screw nut is fixed on the lifting beam. N reversing fixed pulleys are provided on the top beam, and N+1 semi-movable pulleys are provided on the lifting beam. The other end of the pulley rope first passes around the fixed pulley above the vertical shaft to be measured, and then passes around each semi-movable pulley, the reversing fixed pulley and the fixed pulley on the other side of the upper part of the bracket in turn, and finally passes around the movable pulley and is fixed on the side convex beam. A pointer is provided on the weight, and a ruler is provided on the outside of the pointer, where N is a positive integer.
4. The vertical shaft groundwater level detection device that is easy to adjust the detection depth according to claim 3 is characterized in that: The weight is a hollow barrel which can be filled with sand and soil. The weight of the weight can be adjusted by increasing or decreasing the amount of sand and soil.
Citation Information
Patent Citations
Device for measuring water level in tailings dam pressure relief shafts
CN215217755U