Drill hole water level measuring instrument

Abstract

The drill hole water level measuring instrument comprises a top cover, a protective cylinder, a supporting handle, an electric telescopic rod, an air pressure hole and a fixing bolt, clamping blocks are fixedly connected to the two sides of the top end of the top cover, the top cover is detachably connected to the top end of the protective cylinder through the clamping blocks, and the supporting handle is fixedly installed at the top end of the top cover; a connecting rope is fixedly connected to the center of the top end of the supporting handle, an electric telescopic rod is fixedly installed in the center of the bottom of the supporting handle, a connecting plate is fixedly connected to the bottom of the electric telescopic rod, connecting rods are fixedly installed on the two sides of the bottom of the connecting plate, and the lower ends of the connecting rods penetrate through the top cover and are fixedly connected with the two sides of the top end of a dredging plate. The bottom of the dredging plate is fixedly connected with a dredging ruler, and a water inlet is formed in the bottom of the protective cylinder below the dredging ruler; the dredging ruler is arranged to dredge the water inlet, the situation that water flow cannot enter due to silt blockage is avoided, the rolling wheels are arranged to protect and buffer the side wall, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the field of engineering survey equipment, and specifically to a borehole water level measuring instrument. Background Art

[0002] In the process of engineering investigation, it is usually necessary to detect groundwater. At this time, a borehole water level meter is used. The borehole water level meter is an instrument used to measure the water level in the borehole. It can monitor the changes in water level and record the data. The use of a borehole water level meter can quickly and easily understand the changes in water level and provide important data support for hydrogeological exploration, reservoir construction, environmental protection and other fields.

[0003] Application No. 202121047996.3 discloses a geotechnical exploration borehole water level measuring instrument, including a retractable unit, a rotating shaft, a water level measuring unit, a protective tube and a protective cover, etc. Through the cooperation of the protective tube and the water inlet hole, the water level measuring unit can be prevented from touching the inner wall of the borehole or impurities in the water, thereby avoiding damage to the water level measuring unit; and the upper end of the water inlet hole is funnel-shaped, which can facilitate the discharge of water and fine debris entering the protective tube, and the use effect is better.

[0004] However, in use, there are the following defects:

[0005] Although a protective tube is used to prevent the water level measuring unit from touching the inner wall of the borehole and causing damage, the protective tube may be caught by the protrusions of the inner wall when it is pulled upwards. Forced pulling may damage the outer wall, and the water inlet at the bottom may be blocked by soil and gravel during the survey, resulting in groundwater being unable to enter the protective tube and the water level measuring unit being unable to measure the water level normally. Utility Model Content

[0006] The purpose of the present application is to provide a borehole water level measuring instrument, which solves the problem raised in the background technology that although a protective tube is used to prevent the water level measuring unit from touching the inner wall of the borehole and causing damage, when the protective tube is pulled up by the inner wall of the borehole, it may be caught by the protrusion of the inner wall, and forced pulling may damage the outer wall, and the water inlet at the bottom may be blocked by soil and gravel during the survey, thereby preventing groundwater from entering the protective tube and the water level measuring unit from measuring the water level normally.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a borehole water level measuring instrument, comprising a top cover, a protective tube, a support handle, an electric telescopic rod, an air pressure hole and a fixing bolt, the top sides of the top cover are fixedly connected with blocks, and the top cover is detachably connected to the top of the protective tube through the blocks, the top of the top cover is fixedly installed with a support handle, the top center of the support handle is fixedly connected with a connecting rope, and the bottom center of the support handle is fixedly installed with an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected with a connecting plate, connecting rods are fixedly installed on both sides of the bottom of the connecting plate, the lower end of the connecting rod passes through the top cover and is fixedly connected to both sides of the top of a dredging plate, the bottom of the dredging plate is fixedly connected with a dredging ruler, and a water inlet is provided at the bottom of the protective tube below the dredging ruler.

[0008] In this technical solution, after the drilling is completed, the connecting rope is released to extend the protective tube into the hole to implement water level exploration. After contacting the water level, water will flow into the protective tube along the water inlet, and the water level information will be recorded after contacting the water level measuring unit. The water inlet can be kept unobstructed through the electric telescopic rod, connecting plate, connecting rod, dredging plate and dredging ruler. The groundwater may contain sediment, which may easily cause the water inlet to be blocked during the water inlet process, thereby affecting the subsequent water level measurement. The electric telescopic rod is started after the external power supply is energized and extends downward, thereby driving the connecting plate, connecting rod and dredging plate to descend together, and the dredging ruler at the bottom of the dredging plate will It is inserted into the water inlet to push out mud and sand, thereby keeping the water inlet unobstructed and allowing the water level measurement to proceed normally, improving the practicability of the device. At the same time, the side wall of the protective tube can be buffered through the sleeve, shock absorber and roller. Since there may be sharp protrusions on the side wall of the hole, it may be hit due to shaking when the protective tube is above or descending, and forced pulling may damage the outer wall. After the roller touches the hole wall, the shock absorber will compress inward, thereby removing the impact, and the roller can slide on the surface of the hole wall, thereby reducing friction, making it more convenient to rise and fall the protective tube, and improving the practicability of the device.

[0009] As an optional solution of the technical solution of the present application, sleeves are fixedly installed on the upper and lower left and right side walls of the protective tube, a shock absorber is fixedly installed on the inner wall of the sleeve, the other end of the shock absorber is fixedly connected to the fixing rod, and the other end of the fixing rod is fixedly connected to the roller.

[0010] As an optional solution of the technical solution of the present application, a water level measuring unit is detachably installed at the center of the bottom of the top cover.

[0011] As an optional solution of the technical solution of the present application, air pressure holes are opened above the left and right side walls of the protective tube.

[0012] As an optional solution of the technical solution of the present application, the fixing bolt is threadedly connected to the top of the clamping block and the protective tube from above.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present application can keep the water inlet unobstructed through the electric telescopic rod, connecting plate, connecting rod, dredging plate and dredging ruler. The groundwater may contain mud and sand, which may easily cause the water inlet to be blocked during the water inlet process, thereby affecting the subsequent water level measurement. The electric telescopic rod is started after the external power supply is energized and extends downward, thereby driving the connecting plate, connecting rod and dredging plate to descend together. The dredging ruler at the bottom of the dredging plate will be inserted into the water inlet to push out the mud and sand, thereby keeping the water inlet unobstructed, allowing the water level measurement work to proceed normally, and improving the practicality of the device.

[0015] 2. The present application can cushion the side walls of the protective tube through the sleeve, shock absorber and roller. Since there may be sharp protrusions on the side walls of the hole, collisions may occur due to shaking when the protective tube is above or descending, and forced pulling may damage the outer wall. After the roller touches the hole wall, the shock absorber will be compressed inward, thereby removing the impact, and the roller can slide on the surface of the hole wall, thereby reducing friction, making it more convenient to rise and fall the protective tube, and improving the stability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is an overall schematic diagram of a borehole water level measuring instrument for this application;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of a borehole water level measuring instrument of the present application.

[0019] In the figure: 1. Protective tube; 2. Connecting rope; 3. Support handle; 4. Electric telescopic rod; 5. Connecting plate; 6. Connecting rod; 7. Top cover; 8. Block; 9. Fixing bolt; 10. Air pressure hole; 11. Water level measuring unit; 12. Dredge plate; 13. Dredge ruler; 14. Water inlet; 15. Socket pipe; 16. Shock absorber; 17. Fixing rod; 18. Roller. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0021] like Figure 1As shown, a borehole water level measuring instrument includes a top cover 7, a protective tube 1, a support handle 3, an electric telescopic rod 4, an air pressure hole 10 and a fixing bolt 9. Blocks 8 are fixedly connected to both sides of the top of the top cover 7, and the top cover 7 is detachably connected to the top of the protective tube 1 through the block 8. The fixing bolt 9 is threadedly connected to the block 8 and the top of the protective tube 1 from above, and the fixing bolt 9 can fix the top cover 7 to the top of the protective tube 1.

[0022] like Figure 1 As shown, a support handle 3 is fixedly installed on the top of the top cover 7, a connecting rope 2 is fixedly connected to the center of the top of the support handle 3, and an electric telescopic rod 4 is fixedly installed on the center of the bottom of the support handle 3, a connecting plate 5 is fixedly connected to the bottom of the electric telescopic rod 4, and connecting rods 6 are fixedly installed on both sides of the bottom of the connecting plate 5. The electric telescopic rod 4 can be connected to an external power source by connecting electric wires from the ground.

[0023] like Figure 2 As shown, the lower end of the connecting rod 6 passes through the top cover 7 and is fixedly connected to the two sides of the top of the dredging plate 12. The bottom of the dredging plate 12 is fixedly connected with a dredging ruler 13, and a water inlet 14 is provided at the bottom of the protective tube 1 below the dredging ruler 13. The dredging ruler 13 and the water inlet 14 are on the same vertical line.

[0024] like Figure 2 As shown, sleeves 15 are fixedly installed on the upper and lower left and right side walls of the protective tube 1, and a shock absorber 16 is fixedly installed on the inner wall of the sleeve 15. The other end of the shock absorber 16 is fixedly connected to a fixing rod 17, and the other end of the fixing rod 17 is fixedly connected to a roller 18. The shock absorber 16 can remove the impact force.

[0025] like Figure 2 As shown, a water level measuring unit 11 is detachably installed at the bottom center of the top cover 7, and an air pressure hole 10 is opened above the left and right side walls of the protective tube 1. The air pressure hole 10 can discharge the air in the protective tube 1 when water enters the water inlet 14, thereby maintaining stable air pressure and allowing water to enter normally.

[0026] In actual use, after the drilling is completed, the connecting rope 2 is released to extend the protective tube 1 into the hole to implement water level exploration. After contacting the water level, water will enter the protective tube 1 along the water inlet 14, and the water level information will be recorded after contacting the water level measuring unit 11. The water inlet 14 can be kept unobstructed through the electric telescopic rod 4, the connecting plate 5, the connecting rod 6, the dredging plate 12 and the dredging ruler 13. The groundwater may contain silt, which may easily cause the water inlet 14 to be blocked during the water inlet process, thereby affecting the subsequent water level measurement. The electric telescopic rod 4 is started after the external power supply is energized and extends downward, thereby driving the connecting plate 5, the connecting rod 6 and the dredging plate 12 to descend together, and the dredging ruler 13 at the bottom of the dredging plate 12 will It is inserted into the water inlet 14 to push out the mud and sand, thereby keeping the water inlet 14 unobstructed, allowing the water level measurement to proceed normally and improving the stability of the device. At the same time, the side wall of the protective tube 1 can be buffered by the sleeve 15, the shock absorber 16 and the roller 18. Since there may be sharp protrusions on the side wall of the hole, it may be hit due to shaking when the protective tube 1 is above or descending, and forced pulling may damage the outer wall. After the roller 18 touches the hole wall, the shock absorber 16 will be compressed inwardly to remove the impact, and the roller 18 can slide on the surface of the hole wall, thereby reducing friction, making it more convenient to rise and fall the protective tube 1, and improving the stability and practicality of the device.

Claims

1. A borehole water level measuring instrument, comprising a top cover (7), a protective tube (1), a support handle (3), an electric telescopic rod (4), an air pressure hole (10) and a fixing bolt (9), characterized in that: Blocks (8) are fixedly connected to both sides of the top of the top cover (7), and the top cover (7) is detachably connected to the top of the protective tube (1) through the block (8); a support handle (3) is fixedly installed on the top of the top cover (7); a connecting rope (2) is fixedly connected to the center of the top of the support handle (3); an electric telescopic rod (4) is fixedly installed at the center of the bottom of the support handle (3); a connecting plate (5) is fixedly connected to the bottom of the electric telescopic rod (4); connecting rods (6) are fixedly installed on both sides of the bottom of the connecting plate (5); the lower end of the connecting rod (6) passes through the top cover (7) and is fixedly connected to both sides of the top of the dredging plate (12); a dredging ruler (13) is fixedly connected to the bottom of the dredging plate (12); and a water inlet (14) is provided at the bottom of the protective tube (1) below the dredging ruler (13).

2. A borehole water level measuring instrument according to claim 1, characterized in that: A sleeve tube (15) is fixedly mounted on the upper and lower left and right side walls of the protective tube (1), a shock absorber (16) is fixedly mounted on the inner side wall of the sleeve tube (15), the other end of the shock absorber (16) is fixedly connected to a fixing rod (17), and the other end of the fixing rod (17) is fixedly connected to a roller (18).

3. A borehole water level measuring instrument according to claim 1, characterized in that: A water level measuring unit (11) is detachably mounted at the center of the bottom of the top cover (7).

4. A borehole water level measuring instrument according to claim 1, characterized in that: Air pressure holes (10) are provided above the left and right side walls of the protection tube (1).

5. A borehole water level measuring instrument according to claim 1, characterized in that: The fixing bolt (9) is threadably connected to the clamping block (8) and the top end of the protective tube (1) from above.

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