A water level measuring device with good stability for geotechnical engineering investigation

Abstract

The present invention relates to the field of geotechnical engineering survey technology, and in particular to a water level measuring device for geotechnical engineering survey with good stability, comprising a frame, a drum, a connecting rope and a measuring head; the drum is rotatably arranged on the frame, the surface of the drum is provided with a spiral winding groove, the inner wall of the spiral winding groove is provided with a sine wave balance groove along the spiral direction, one end of the connecting rope is wound in the spiral winding groove, and the measuring head is arranged at the other end of the connecting rope. The water level measuring device for geotechnical engineering survey with good stability provided by the present invention ensures the plumbness of the connecting rope, can avoid the problems of slipping, wear and even dislocation of the connecting rope, improves the overall balance of the water level measuring device, and improves the measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering investigation, and in particular to a geotechnical engineering investigation water level measuring device with good stability. Background Art

[0002] In the process of rock engineering exploration, it is necessary to effectively detect the groundwater level in order to determine whether the location of the project affects the normal operation of groundwater. The groundwater level can be effectively measured by a water level measuring instrument to meet the corresponding construction requirements. At present, when the water level measuring instrument on the market is retracting and releasing the connecting rope, the swing of the connecting rope and the measuring instrument will cause the connecting rope to slip, which has an adverse effect on the measurement accuracy and the service life of the components. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water level measuring device for geotechnical engineering investigation which can avoid the slipping of a connecting rope and has good stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a water level measuring device for geotechnical engineering investigation with good stability, comprising a frame, a drum, a connecting rope and a measuring head;

[0005] The drum is rotatably arranged on the frame, a spiral winding groove is provided on the surface of the drum, a sine wave balancing groove is provided on the inner wall of the spiral winding groove along the spiral direction, one end of the connecting rope is wound in the spiral winding groove, and the measuring head is arranged at the other end of the connecting rope.

[0006] In an optional embodiment, the cross-sectional shape of the spirally wound groove is a trapezoid, and the balancing groove is arranged at the bottom of the spirally wound groove.

[0007] In an optional embodiment, the bottom of the spirally wound groove is an arc surface, and the cross-sectional shape of the balancing groove is an arcuate shape.

[0008] In an optional embodiment, a rope clamp is provided at one end of the spiral winding groove, and a rope outlet groove is provided at the other end of the spiral winding groove. One end of the connecting rope is connected to the rope clamp, and the other end of the connecting rope extends from the rope outlet groove.

[0009] In an optional embodiment, the bottom of the spiral winding groove is an arc surface, and the curvature of the bottom of the spiral winding groove gradually increases from an end close to the rope clamp buckle to an end close to the rope outlet groove.

[0010] In an optional embodiment, the cross-sectional shape of the balancing groove is an arcuate shape, and the cross-sectional area of ​​the balancing groove gradually increases from an end close to the rope clamp buckle to an end close to the rope outlet groove.

[0011] In an optional embodiment, it further includes an unwinding motor, which is arranged on the frame and connected to the reel.

[0012] In an optional embodiment, the connecting rope is provided with scale lines.

[0013] In an optional embodiment, a guide wheel is further included, and the guide wheel is slidably arranged on the frame along an axis, and the axis of the guide wheel is parallel to the axis of the reel.

[0014] In an optional embodiment, a water absorbing layer is provided on the surface of the guide wheel.

[0015] The beneficial effects of the present invention are: providing a water level measuring device for geotechnical engineering investigation with good stability, wherein a drum is rotatably connected to a frame, and after the frame is fixed, the drum can be rotated to carry out winding and unwinding operations, and a spiral winding groove for limiting and guiding the connecting rope is provided on the surface of the drum, and a balancing groove is sinusoidally arranged on the inner wall of the spiral winding groove, and when the connecting rope passes through the balancing groove, the friction forces in different directions improve the balancing conditions of the connecting rope during the winding and unwinding process, and the axial stability of the drum is improved, thereby ensuring the plumbness of the connecting rope, avoiding the problems of slipping, wear and even dislocation of the connecting rope, improving the overall balance of the water level measuring device, and improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a water level measuring device for geotechnical engineering investigation with good stability according to an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a water level measuring device for geotechnical engineering investigation with good stability according to an embodiment of the present invention;

[0018] Description of labels:

[0019] 1. Frame;

[0020] 2. Drum; 21. Spiral winding groove; 211. Rope clamp; 212. Rope outlet groove; 22. Balance groove;

[0021] 3. Connecting rope;

[0022] 4. Measuring head;

[0023] 5. Unwinding motor;

[0024] 6. Guide wheel. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0026] Please refer to Figure 1 to Figure 2 , a water level measuring device for geotechnical engineering investigation with good stability, comprising a frame, a drum, a connecting rope and a measuring head;

[0027] The drum is rotatably arranged on the frame, a spiral winding groove is provided on the surface of the drum, a sine wave balancing groove is provided on the inner wall of the spiral winding groove along the spiral direction, one end of the connecting rope is wound in the spiral winding groove, and the measuring head is arranged at the other end of the connecting rope.

[0028] From the above description, it can be seen that the beneficial effects of the present invention are: providing a water level measuring device for geotechnical engineering survey with good stability, the drum is rotatably connected to the frame, and after the frame is fixed, the drum can be rotated to carry out winding and unwinding operations, and the surface of the drum is provided with a spiral winding groove for limiting and guiding the connecting rope, and the projection shape of the balance groove on the inner wall of the spiral winding groove is a sinusoidal waveform. When the connecting rope passes through the balance groove, the friction force in different directions improves the balance condition of the connecting rope during the winding and unwinding process, and improves the axial stability of the drum, thereby ensuring the plumbness of the connecting rope, and can avoid slipping, wear and even dislocation of the connecting rope, thereby improving the overall balance of the water level measuring device and improving the measurement accuracy.

[0029] Furthermore, the cross-sectional shape of the spirally wound groove is a trapezoid, and the balancing groove is arranged at the bottom of the spirally wound groove.

[0030] From the above description, it can be seen that the cross-sectional shape of the spiral winding groove is designed to be trapezoidal in order to facilitate the connection rope to enter and exit the rope while maintaining a certain restraining effect on the connection rope to prevent the connection rope from being misplaced. The connecting rope cooperates with the bottom of the spiral winding groove under the action of its own weight and the gravity of the measuring head, and balances the swing generated during the winding and unwinding process through the balance groove arranged in a sinusoidal waveform, thereby ultimately achieving the purpose of improving the measurement accuracy.

[0031] Furthermore, the bottom of the spirally wound groove is an arc surface, and the cross-sectional shape of the balancing groove is an arch shape.

[0032] From the above description, it can be seen that the bottom of the spiral winding groove adopts an arc surface design, which can increase the equivalent friction coefficient of the spiral winding groove, thereby improving the balance of the connecting rope during the winding and unwinding process. The balance groove adopts a bow-shaped design, on the one hand to increase the equivalent friction coefficient of the spiral winding groove, and on the other hand to remove dust and water on the surface of the connecting rope to prevent the connecting rope from slipping.

[0033] Furthermore, a rope clamp is provided at one end of the spiral winding groove, and a rope outlet groove is provided at the other end of the spiral winding groove. One end of the connecting rope is connected to the rope clamp, and the other end of the connecting rope extends from the rope outlet groove.

[0034] It can be seen from the above description that the rope clamp plays the role of clamping and fixing the connecting rope, and the rope outlet groove plays the role of guiding and limiting the winding and unwinding connecting rope.

[0035] Furthermore, the bottom of the spiral winding groove is an arc surface, and the curvature of the bottom of the spiral winding groove gradually increases from an end close to the rope clamping buckle to an end close to the rope outlet groove.

[0036] From the above description, it can be seen that when the connecting rope is reeled in and unreeled, the force exerted by the spiral winding groove on the connecting rope from one end of the rope clamp to the end of the rope outlet groove changes from tight to loose in sequence. Therefore, the curvature of the bottom of the spiral winding groove is designed to gradually increase according to the change from tight to loose, that is, the equivalent friction coefficient gradually decreases, which helps to improve the axial balance ability of the reel when reeling in and unreeling, and ensure the measurement accuracy.

[0037] Furthermore, the cross-sectional shape of the balancing groove is an arcuate shape, and the cross-sectional area of ​​the balancing groove gradually increases from an end close to the rope clamping buckle to an end close to the rope outlet groove.

[0038] From the above description, it can be seen that the cross-sectional area of ​​the balance groove is designed to gradually increase from the fixed end of the connecting rope to the rope outlet end. On the one hand, it can control the equivalent friction coefficient of the spiral winding groove to gradually decrease. On the other hand, it is beneficial to remove dust and water on the surface of the connecting rope to prevent the connecting rope from slipping.

[0039] Furthermore, it also includes a reeling motor, which is arranged on the frame and connected to the reel.

[0040] From the above description, it can be seen that the unwinding motor plays a role in controlling the reel unwinding speed.

[0041] Furthermore, the connecting rope is provided with scale lines.

[0042] As can be seen from the above description, the scale line serves to facilitate observation of the retracted and unreeled length of the connecting rope.

[0043] Furthermore, it also includes a guide wheel, which is slidably arranged on the frame along an axis, and the axis of the guide wheel is parallel to the axis of the reel.

[0044] It can be seen from the above description that the guide wheel plays a role in assisting the fixing and guiding of the connecting rope, thereby improving the stability of the measuring device.

[0045] Furthermore, a water absorbing layer is provided on the surface of the guide wheel.

[0046] It can be seen from the above description that the water-absorbing layer plays a role in removing dust and water from the surface of the connecting rope, thereby preventing the connecting rope from slipping.

[0047] Please refer to Figure 1 to Figure 2, Embodiment 1 of the present invention is: a water level measuring device for geotechnical engineering investigation with good stability, comprising a frame 1, a drum 2, a connecting rope 3 and a measuring head 4;

[0048] The reel 2 is cylindrical and rotatably arranged on the frame 1. A spiral winding groove 21 is provided on the surface of the reel 2. A sine wave balancing groove 22 is provided on the inner wall of the spiral winding groove 21 along the spiral direction. The groove width of the balancing groove 22 is half of the groove width of the spiral winding groove 21. One end of the connecting rope 3 is wound in the spiral winding groove 21, and the measuring head 4 is arranged at the other end of the connecting rope 3.

[0049] The cross-sectional shape of the spiral winding groove 21 is an isosceles trapezoid, and the balance groove 22 is arranged at the groove bottom of the spiral winding groove 21. The groove bottom of the spiral winding groove 21 is an arc surface, and the cross-sectional shape of the balance groove 22 is an arch shape. A rope clamping buckle 211 is provided at one end of the spiral winding groove 21, and one end of the rope clamping buckle 211 is hinged to the reel 2, and the reel 2 is provided with a buckle for fixing the rope clamping buckle 211. A rope outlet groove 212 is provided at the other end of the spiral winding groove 21, and the rope outlet groove 212 has an arc slope. One end of the connecting rope 3 is connected to the rope clamping buckle 211, and the other end of the connecting rope 3 extends from the rope outlet groove 212. The groove bottom of the spiral winding groove 21 is an arc surface, and the curvature of the groove bottom of the spiral winding groove 21 gradually increases from the end close to the rope clamping buckle 211 to the end close to the rope outlet groove 212. The cross-sectional shape of the balance groove 22 is an arcuate shape, and the cross-sectional area of ​​the balance groove 22 gradually increases from the end close to the rope clamp 211 to the end close to the rope outlet groove 212. It also includes a reeling motor 5, which is arranged on the frame 1 and connected to the reel 2 through a coupling. The connecting rope 3 is provided with a scale line. It also includes a guide wheel 6, which is slidably arranged on the frame 1 along the axis, and the axis of the guide wheel 6 is parallel to the axis of the reel 2. The surface of the guide wheel 6 is provided with an activated carbon water-absorbing layer.

[0050] In summary, the present invention provides a water level measuring device for geotechnical engineering survey with good stability. The reel is rotatably connected to the frame. After the frame is fixed, the reel can be rotated to reel in and out. The surface of the reel is provided with a spiral winding groove for limiting and guiding the connecting rope. The balance groove is arranged on the inner wall of the spiral winding groove in a sine waveform. When the connecting rope passes through the balance groove, the friction in different directions improves the balance condition of the connecting rope during the reeling and unreeling process, and the axial stability of the reel is improved, thereby ensuring the plumb bob of the connecting rope, avoiding the problems of slipping, wear and even dislocation of the connecting rope, improving the overall balance of the water level measuring device, and improving the measurement accuracy. The purpose of designing the cross-sectional shape of the spiral winding groove as a trapezoid is to facilitate the entry and exit of the connecting rope while maintaining a certain restraining effect on the connecting rope to prevent the connecting rope from being dislocated. The connecting rope cooperates with the bottom of the spiral winding groove under the action of its own weight and the gravity of the measuring head, and the swing generated during the reeling and unreeling process is balanced by the balance groove arranged in a sine waveform, ultimately achieving the purpose of improving the measurement accuracy. The bottom of the spiral winding groove adopts an arc surface design, which can increase the equivalent friction coefficient of the spiral winding groove, thereby improving the balance of the connecting rope during the winding and unwinding process. The balance groove adopts an arched design, on the one hand, to increase the equivalent friction coefficient of the spiral winding groove, and on the other hand, it can also remove dust and water on the surface of the connecting rope to prevent the connecting rope from slipping. The rope clamp plays the role of clamping and fixing the connecting rope, and the rope outlet groove plays the role of guiding and limiting the winding and unwinding connecting rope. When the connecting rope is wound and unwound, the force of the spiral winding groove on the connecting rope from one end of the rope clamp to one end of the rope outlet groove is successively from tight to loose. Therefore, the arc of the bottom of the spiral winding groove is designed to gradually increase according to the change from tight to loose, that is, the equivalent friction coefficient gradually decreases, which helps to improve the axial balance ability of the drum when winding and unwinding, and ensures the measurement accuracy. The cross-sectional area of ​​the balance groove is designed to gradually increase from the fixed end of the connecting rope to the rope outlet end. On the one hand, it can control the equivalent friction coefficient of the spiral winding groove to gradually decrease, and on the other hand, it is conducive to removing dust and water on the surface of the connecting rope to prevent the connecting rope from slipping. The unwinding motor controls the reeling and unwinding speed. The scale line facilitates observation of the rewinding and unwinding length of the connecting rope. The guide wheel assists in fixing and guiding the connecting rope, thereby improving the stability of the measuring device. The water-absorbing layer removes dust and water from the surface of the connecting rope to prevent the connecting rope from slipping.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water level measuring device for geotechnical engineering investigation with good stability, characterized in that: It includes a frame, a drum, a connecting rope, a measuring head and a guide wheel; The reel is rotatably arranged on the frame, a spiral winding groove is arranged on the surface of the reel, a sine wave balancing groove is arranged on the inner wall of the spiral winding groove along the spiral direction, one end of the connecting rope is wound in the spiral winding groove, and the measuring head is arranged at the other end of the connecting rope; One end of the spiral winding groove is provided with a rope clamp, one end of the rope clamp is hinged to the reel, the reel is provided with a buckle for fixing the rope clamp, the other end of the spiral winding groove is provided with a rope outlet groove, the rope outlet groove has an arc-shaped slope, one end of the connecting rope is connected to the rope clamp, and the other end of the connecting rope extends from the rope outlet groove; The bottom of the spiral winding groove is an arc surface, and the curvature of the bottom of the spiral winding groove gradually increases from the end close to the rope clamping buckle to the end close to the rope outlet groove; The cross-sectional shape of the balancing groove is an arcuate shape, and the cross-sectional area of ​​the balancing groove gradually increases from an end close to the rope clamping buckle to an end close to the rope outlet groove; The cross-sectional shape of the spiral winding groove is an isosceles trapezoid, and the balancing groove is arranged at the groove bottom of the spiral winding groove; An activated carbon water-absorbing layer is arranged on the surface of the guide wheel.

2. The water level measuring device for geotechnical engineering investigation with good stability according to claim 1 is characterized in that: It also includes an unwinding motor, which is arranged on the frame and connected to the reel.

3. The water level measuring device for geotechnical engineering investigation with good stability according to claim 1 is characterized in that: The connecting rope is provided with scale marks.

4. The water level measuring device for geotechnical engineering investigation with good stability according to claim 1 is characterized in that: It also includes a guide wheel, which is slidably arranged on the frame along an axis, and the axis of the guide wheel is parallel to the axis of the reel.

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