Geotechnical investigation drill hole water level measuring device

Abstract

The utility model relates to the technical field of geotechnical investigation, in particular to a geotechnical investigation drill hole water level measuring device which comprises a mounting plate, a pay-off mechanism arranged on the mounting plate and a measuring mechanism arranged on the pay-off mechanism, and a stabilizing mechanism is arranged below the mounting plate and comprises a first hinge block fixedly arranged at the bottom of the mounting plate. A connecting cylinder is hinged to the first hinge block. A movable rod matched with the connecting cylinder is slidably inserted into the connecting cylinder, a second hinge block is hinged to the lower end of the movable rod, and a cone is fixedly mounted at the bottom of the second hinge block. The device can enable the movable rod to move in the connecting cylinder, so that the ground clearance of the corresponding corner of the mounting plate can be adjusted; therefore, the measuring device body is kept in a stable state, the workload is reduced, and the measuring accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical exploration technology, specifically a geotechnical exploration borehole water level measuring device. Background Technology

[0002] Geotechnical investigation refers to the activity of investigating, analyzing, and evaluating the geological and environmental characteristics and geotechnical engineering conditions of a construction site according to the requirements of a construction project, and preparing investigation documents. The purpose of geotechnical engineering investigation is to: use testing methods to investigate, study, and analyze the construction site; study the geological conditions for constructing various engineering structures and the impact of construction on the natural geological environment; study measures to ensure the strength and stability of the foundation and prevent unacceptable deformation when the foundation, substructure, and superstructure work together; propose the bearing capacity of the foundation; and provide the engineering site and geotechnical engineering data required for foundation design and construction, and, when necessary, foundation reinforcement.

[0003] In the early stages of geotechnical investigation, after drilling with drilling equipment, groundwater is often found inside the borehole. A water level measuring device is then needed to measure the water level and depth. Currently, these devices are manually held and inserted into the borehole at the borehole entrance. This lacks a stable mechanism and cannot adapt to uneven outdoor terrain. Manual handling can lead to unstable operation and increases the workload for workers. Furthermore, when retrieving the cable after measurement, impurities present in the groundwater are often carried back with the cable, hindering its preservation and long-term use. Therefore, we propose a new borehole water level measuring device for geotechnical investigation. Utility Model Content

[0004] The purpose of this invention is to provide a water level measuring device for boreholes used in rock and soil exploration, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A borehole water level measuring device for rock and soil exploration includes a mounting plate, a line-laying mechanism mounted on the mounting plate, and a measuring mechanism mounted on the line-laying mechanism. The mounting plate has a through groove in the center, and rectangular plates are fixedly mounted on both sides of the through groove. The line-laying mechanism is mounted on the rectangular plates.

[0007] Multiple sets of stabilizing mechanisms are provided below the mounting plate. Each stabilizing mechanism includes a hinge block 1 fixedly installed at the bottom of the mounting plate, and a connecting cylinder is hinged to the hinge block 1.

[0008] The connecting cylinder is slidably inserted with a movable rod adapted to the connecting cylinder. The upper end of the movable rod is located inside the connecting cylinder, and the lower end of the movable rod is hinged to a second hinge block. A cone is fixedly installed at the bottom of the second hinge block.

[0009] A groove is provided on one side wall of the connecting cylinder, and a threaded post is installed on the top side of the moving rod. The threaded post passes through the groove and is fitted with a nut.

[0010] Furthermore, the stabilizing mechanism is provided in four sets, arranged diagonally at the four corners of the bottom of the mounting plate.

[0011] Furthermore, the outer diameter of the nut is greater than the width of the connecting sleeve.

[0012] Furthermore, a handle is fixedly installed on the outer wall of the nut, and there are two handles arranged symmetrically.

[0013] Furthermore, the wire feeding mechanism includes a geared asynchronous motor, a rotating shaft, a take-up roller, and a cable. The rotating shaft is rotatably mounted between two rectangular plates, with one end of the rotating shaft passing through the outside of one of the rectangular plates and connected to the geared asynchronous motor. The take-up roller is fixedly sleeved on the outside of the rotating shaft, and a cable is wound on the take-up roller. A measuring mechanism is installed on the cable.

[0014] Furthermore, a connecting plate is provided in the middle of the through groove, and the two ends of the connecting plate are respectively connected to the inner wall of the through groove; a circular through hole is opened in the center of the connecting plate, and bristles are detachably provided around the inner wall of the circular through hole, and the cable passes through the circular through hole and slides and fits against the bristles.

[0015] Furthermore, the measuring mechanism includes a weight set at the bottom of the cable, a distance sensor being mounted on the weight, and a sliding sleeve fitted onto the outer wall of the vertical section of the cable, with an airbag mounted on the sliding sleeve.

[0016] Furthermore, the inner diameter of the sliding sleeve is larger than the outer diameter of the cable.

[0017] Compared with the prior art, the water level measuring device of this utility model has the following advantages:

[0018] 1. In order to better adapt to uneven ground and stabilize the water level measuring device body, this borehole water level measuring device is equipped with a stabilizing mechanism. When the ground is uneven, by turning the handle and loosening the nut, the sliding groove and threaded rod can be used to move the moving rod in the connecting cylinder, thereby adjusting the height of the corresponding corner of the mounting plate off the ground. After the whole adjustment and leveling, the water level measuring device body will remain stable.

[0019] 2. This geotechnical exploration borehole water level measuring device is equipped with a cleaning component to better clean the cable. When the deceleration asynchronous motor reverses, it pulls up the cable. With the help of the circular through hole on the connecting plate and the bristles on the inner wall of the through hole, the impurities on the outer wall of the cable can be cleaned, and then the cable can be retracted. Attached Figure Description

[0020] Figure 1 This is a top-left view of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the flat plate of this utility model;

[0022] Figure 3 This is a top-right view of the overall structure of this utility model;

[0023] Figure 4 This utility model Figure 3 A magnified structural diagram of region A in the middle.

[0024] In the diagram: 1. Mounting plate; 2. Through slot; 3. Rectangular plate; 4. Geared asynchronous motor; 5. Rotating shaft; 6. Rewinding roller; 7. Stabilizing mechanism; 71. Hinge block one; 72. Connecting cylinder; 73. Slide groove; 74. Moving rod; 75. Threaded column; 76. Nut; 77. Throttle; 78. Hinge block two; 79. Cone; 81. Connecting plate; 82. Circular through hole; 83. Brush bristles; 84. Cable; 85. Counterweight; 86. Sliding sleeve; 87. Airbag. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] like Figure 1The present invention proposes a borehole water level measuring device for rock and soil exploration, including a mounting plate 1, a line-laying mechanism set on the mounting plate 1, and a measuring mechanism set on the line-laying mechanism. The mounting plate 1 has a through groove 2 in the center. Rectangular plates 3 are fixedly installed on both sides of the through groove 2 on the mounting plate 1, and the line-laying mechanism is installed on the rectangular plates 3.

[0029] like Figures 1-3 As shown, four sets of stabilizing mechanisms 7 are arranged diagonally at the four corners of the bottom of the mounting plate 1. Each stabilizing mechanism 7 includes a hinge block 71 fixedly mounted on the bottom of the mounting plate 1, and a connecting cylinder 72 hinged to the hinge block 71. A movable rod 74 adapted to the connecting cylinder 72 is slidably inserted inside the connecting cylinder 72. The upper end of the movable rod 74 is located inside the connecting cylinder, and the lower end of the movable rod 74 is hinged to a hinge block 78. A cone 79 is fixedly installed at the bottom of the hinge block 78. A groove 73 is opened on one side wall of the connecting cylinder 72. A threaded post 75 is installed on the top side of the movable rod 74. The threaded post 75 passes through the groove 73 and is fitted with a nut 76. The outer diameter of the nut 76 is larger than the width of the connecting cylinder 72. Two symmetrically arranged handles 77 are fixedly installed on the outer wall of the nut 76.

[0030] When the ground is uneven, by turning the handle 77 and loosening the nut 76, the moving rod 74 can move up and down in the connecting cylinder 72 in conjunction with the hinge block 71, hinge block 78, sliding groove 73 and threaded column 75. After leveling, turn the handle 77 in the opposite direction and tighten the nut 76 to fix the position of the moving rod, thereby keeping the water level measuring device in a stable state.

[0031] like Figure 3 As shown, the cable feeding mechanism includes a geared asynchronous motor 4, a rotating shaft 5, a take-up roller 6, and a cable 84. The rotating shaft 5 is rotatably mounted between two rectangular plates 3. One end of the rotating shaft 5 passes through the outside of one of the rectangular plates 3 and is connected to the geared asynchronous motor 4. The take-up roller 6 is fixedly sleeved on the outside of the rotating shaft 5, and the cable 84 is wound on the take-up roller 6. A measuring mechanism is set on the cable 84. The measuring mechanism includes a weight 85 set at the bottom of the cable 84. A distance sensor is set on the weight 85. A sliding sleeve 86 is sleeved on the outer wall of the vertical section of the cable. An airbag 87 is installed on the sliding sleeve 86. It should be noted that in this utility model, the buoyancy of the airbag is greater than the weight of the sliding sleeve. Before measurement, the airbag moves downward under the action of the sliding sleeve until the airbag reaches the water surface. When the airbag contacts the water surface, the airbag and the sliding sleeve will stop moving, and the distance sensor on the weight will start measuring the water level. The inner diameter of the sliding sleeve 86 is larger than the outer diameter of the cable 84, so that impurities and dirt on the outside of the cable 84 will not remain inside the sliding sleeve 86.

[0032] When the geared asynchronous motor 4 is started, it drives the rotating shaft 5 to rotate between the two rectangular plates 3, thereby driving the winding roller 6 to rotate. Under the action of the counterweight, the cable 84 is pulled downward, causing the counterweight 85 and the sliding sleeve 86 to be lowered into the borehole. An air bladder 87 is fixedly installed on the outer wall of the sliding sleeve 86. When the air bladder 87 contacts the water surface, the sliding sleeve 86 and the air bladder 87 stop descending as a whole. Thus, the water level in the borehole can be easily measured by the distance sensor set on the counterweight.

[0033] like Figure 3 , Figure 4 As shown, a connecting plate 81 is provided in the middle of the through groove 2, and the two ends of the connecting plate 81 are respectively connected to the inner wall of the through groove 2; a circular through hole 82 is opened in the center of the connecting plate 81, and bristles 83 are detachably provided around the inner wall of the circular through hole 82. The cable 84 passes through the circular through hole 82 and slides in contact with the bristles 83. When the geared asynchronous motor 4 reverses, the cable 84 can be pulled up, and the bristles 83 can clean the impurities and dirt on the outer wall of the cable 84.

[0034] It should be noted that all components in this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. At the same time, the standard parts used in this utility model can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming, which is common knowledge in the field. Furthermore, this application document is mainly used to protect mechanical devices, so this application document will not explain the control method and circuit connection in detail, and will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A borehole water level measuring device for rock and soil exploration, comprising a mounting plate, a line-laying mechanism mounted on the mounting plate, and a measuring mechanism mounted on the line-laying mechanism, characterized in that: The mounting plate has a through slot in the center, and rectangular plates are fixedly mounted on both sides of the through slot on the mounting plate. The wire feeding mechanism is mounted on the rectangular plates. Multiple sets of stabilizing mechanisms are provided below the mounting plate. Each stabilizing mechanism includes a hinge block 1 fixedly installed at the bottom of the mounting plate, and a connecting cylinder is hinged to the hinge block 1. The connecting cylinder is slidably inserted with a movable rod adapted to the connecting cylinder. The upper end of the movable rod is located inside the connecting cylinder, and the lower end of the movable rod is hinged to a second hinge block. A cone is fixedly installed at the bottom of the second hinge block. A groove is provided on one side wall of the connecting cylinder, and a threaded post is installed on the top side of the moving rod. The threaded post passes through the groove and is fitted with a nut.

2. The water level measuring device for boreholes in rock and soil exploration according to claim 1, characterized in that: The stabilizing mechanism consists of four sets, arranged diagonally at the four corners of the bottom of the mounting plate.

3. The water level measuring device for boreholes in rock and soil exploration according to claim 1, characterized in that: The outer diameter of the nut is larger than the width of the connecting sleeve.

4. The water level measuring device for boreholes in rock and soil exploration according to claim 1, characterized in that: A handle is fixedly installed on the outer wall of the nut.

5. The water level measuring device for boreholes in rock and soil exploration according to claim 4, characterized in that: There are two handles, which are arranged symmetrically.

6. A borehole water level measuring device for rock and soil exploration according to any one of claims 1-5, characterized in that: The wire feeding mechanism includes a geared asynchronous motor, a rotating shaft, a take-up roller, and a cable. The rotating shaft is rotatably mounted between two rectangular plates. One end of the rotating shaft passes through the outside of one of the rectangular plates and is connected to the geared asynchronous motor. The take-up roller is fixedly sleeved on the outside of the rotating shaft, and a cable is wound on the take-up roller. A measuring mechanism is installed on the cable.

7. The water level measuring device for boreholes in rock and soil exploration according to claim 6, characterized in that: A connecting plate is provided in the middle of the through groove, and the two ends of the connecting plate are respectively connected to the inner wall of the through groove; a circular through hole is opened in the center of the connecting plate, and bristles are detachably provided around the inner wall of the circular through hole, and the cable passes through the circular through hole and slides and fits against the bristles.

8. The water level measuring device for boreholes in rock and soil exploration according to claim 6, characterized in that: The measuring mechanism includes a weight set at the bottom of the cable, a distance sensor set on the weight, a sliding sleeve fitted on the outer wall of the vertical section of the cable, and an airbag installed on the sliding sleeve.

9. A borehole water level measuring device for rock and soil exploration according to claim 8, characterized in that: The inner diameter of the sliding sleeve is larger than the outer diameter of the cable.

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