Hole depth measuring device for rock-soil geological investigation

Abstract

The utility model discloses a hole depth measuring device for rock-soil geological survey, which comprises a movable frame and a workbench, a plurality of connecting rods are fixedly mounted on the outer wall of the movable frame, and one end, far away from the movable frame, of each connecting rod is fixedly connected to the outer wall of the workbench; the folding and unfolding mechanism is mounted on the working table; one end of the rope is installed in the winding and unwinding mechanism, the rope can be wound or unwound through the winding and unwinding mechanism, the detection mechanism is arranged, when the balance weight shell reaches the bottom in the hole, the detection mechanism transmits a signal to a worker located on the ground, and the worker can conduct detection through the rope when the balance weight shell reaches the bottom in the hole. According to the device, whether the counterweight shell reaches the bottom in the hole or not is judged through the detection mechanism, and compared with manual visual judgment, the judgment accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of geological surveying equipment technology, and in particular to a borehole depth measuring device for rock and soil geological survey. Background Technology

[0002] In rock and soil geological exploration, borehole depth measurement is a fundamental and crucial step. Measuring borehole depth is of great significance for subsequent geological structure analysis, determination of rock and soil parameters, and engineering design.

[0003] The traditional method for measuring the depth of a hole involves attaching a counterweight to a rope, dropping the counterweight into the hole, and then relying on intuition to determine if the counterweight has reached the bottom. Once the counterweight has reached the bottom, a mark is made at the point where the rope is near the hole opening. The rope is then pulled out, and the distance between the mark and the counterweight is measured to determine the depth. This method has several drawbacks: firstly, relying on visual judgment to determine if the counterweight has reached the bottom results in low accuracy; secondly, conventional ropes are generally not designed with centimeter-precise markings, requiring the rope to be completely removed from the hole before its length can be measured, making the process cumbersome. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a borehole depth measuring device for rock and soil geological exploration.

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

[0006] A borehole depth measuring device for rock and soil geological exploration includes:

[0007] Mobile rack

[0008] The workbench has multiple connecting rods fixedly installed on the outer wall of the movable frame, with the end of the connecting rod away from the movable frame fixedly connected to the outer wall of the workbench.

[0009] A take-up and release mechanism, which is mounted on the workbench;

[0010] A rope, one end of which is installed inside a winding / unwinding mechanism, which can be used to wind / unwind the rope;

[0011] Multiple scale line sleeves are evenly spaced and installed on the outer wall of the rope;

[0012] A measuring mechanism, mounted on a workbench, is used to assist in measuring the local length of a rope;

[0013] The detection mechanism is installed at the bottom end of the rope and is used to measure whether the bottom end of the counterweight shell reaches the bottom position inside the hole.

[0014] The above technical solution further includes: the take-up and release mechanism includes a take-up box, a wire roller, a pulley, and a drive assembly. The take-up box is fixedly installed on the top wall of the workbench. Rotating shafts are fixedly installed on the opposite side walls of the wire roller. The end of the rotating shaft away from the wire roller is rotatably installed on the inner wall of the take-up box. The top end of the rope moves through the side wall of the take-up box and is connected to the wire roller. The pulley is rotatably installed on the outer wall of the take-up box. The drive assembly is installed on the take-up box and is used to drive the wire roller to rotate.

[0015] Furthermore, the drive assembly includes a worm gear, a worm, and a rotating wheel. The worm gear is fixedly connected to the outer wall of one side of the rotating shaft, the worm is rotatably mounted on the inner wall of the take-up box, the worm gear and the worm mesh with each other, and the rotating wheel is fixedly connected to the end wall of the worm away from the inner wall of the take-up box.

[0016] Furthermore, the measuring mechanism includes a measuring ruler with graduation lines. The outer walls of the worktable and the movable frame are both provided with through slots. The measuring ruler is inserted into the through slots. A fixing component is provided on the worktable to fix the position of the measuring ruler.

[0017] Furthermore, the fixing component includes a support fixedly installed on the outer wall of the workbench, and a threaded locking rod is threadedly installed on the support, with the end wall of the threaded locking rod pressing against the side wall of the measuring ruler.

[0018] Furthermore, the detection mechanism includes a LoRa receiver, a pressure sensor, a controller, and a LoRa transmitter. The pressure sensor is fixedly installed on the bottom wall of the counterweight shell, and the detection end of the pressure sensor is located outside the counterweight shell. The controller and the LoRa transmitter are respectively fixedly installed inside the counterweight shell. The LoRa receiver is placed on the ground. The pressure sensor and the LoRa transmitter are respectively electrically connected to the controller. The LoRa receiver and the LoRa transmitter communicate wirelessly.

[0019] Furthermore, the movable frame has a through hole, the worktable has a through hole, and the rope moves through the through hole and the through hole. The inner diameter of the through hole is larger than the outer diameter of the counterweight shell.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, a detection mechanism is provided. When the counterweight shell reaches the bottom of the hole, the detection mechanism transmits a signal to the staff on the ground. This device uses the detection mechanism to determine whether the counterweight shell has reached the bottom of the hole, which improves the accuracy of the judgment compared to manual intuitive judgment.

[0022] 2. In this utility model, a measuring mechanism is provided. By using the measuring mechanism in conjunction with the scale line sleeve on the rope, the length of the rope inside the hole can be measured. During the measurement process, there is no need to remove the rope from the hole, which is convenient for the operator. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention in use.

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 4 for Figure 1 Enlarged structural diagram at point A;

[0027] Figure 5 for Figure 2 Enlarged structural diagram at point B;

[0028] Figure 6 for Figure 2 Enlarged structural diagram at point C;

[0029] Figure 7 This is a schematic diagram showing the connection relationship of the electrical components of this utility model;

[0030] Figure 8 for Figure 1 A magnified structural diagram at point D.

[0031] In the picture:

[0032] 10. Moving frame; 11. Connecting rod; 12. Worktable; 20. Take-up box; 21. Wire roller; 211. Worm gear; 212. Worm; 213. Rotary wheel; 214. Rotary shaft; 22. Pulley; 23. Rope; 231. Scale sheath; 24. Counterweight shell; 241. LoRa receiver; 242. Pressure sensor; 243. Controller; 244. LoRa transmitter; 30. Measuring ruler; 31. Support; 32. Threaded locking rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] See attached document Figure 1-8 It includes: a moving frame 10, a worktable 12, a take-up and take-down mechanism, a rope 23, multiple scale line sleeves 231, a measuring mechanism, and a detection mechanism; when measuring the depth of the hole, the counterweight shell 24 can be put into the hole to be measured. After the detection mechanism detects that the counterweight shell 24 has reached the bottom of the hole, the depth of the hole can be measured by measuring the length of the rope 23 in the hole.

[0036] The movable frame 10 has multiple connecting rods 11 fixedly installed on its outer wall, with one end of each connecting rod 11 away from the movable frame 10 fixedly connected to the outer wall of the workbench 12. A winding and unwinding mechanism is installed on the workbench 12. One end of the rope 23 is installed inside the winding and unwinding mechanism, which can be used to wind and unwind the rope 23. Multiple scale line sleeves 231 are installed on the outer wall of the rope 23. A measuring mechanism is installed on the workbench 12 to assist in measuring the local length of the rope 23. A detection mechanism is installed at the bottom of the rope 23 to measure whether the bottom of the counterweight shell 24 reaches the bottom position inside the hole.

[0037] In one embodiment of this utility model, multiple scale line sleeves 231 are evenly spaced and installed on the outer wall of the rope 23. Each scale line sleeve 231 has a scale number on it. Fixing the scale line sleeves 231 to the rope 23 helps in observing the length of the rope 23. It should also be noted that, for easier observation of the rope length, multiple scale line sleeves 231 are numbered sequentially from bottom to top. Assuming the distance between two adjacent scale line sleeves 231 is 50 cm, when the number marked on the scale line sleeve 231 closest to the top wall of the hole is 4, the distance between the scale line sleeve 231 closest to the top wall of the hole and the bottom of the rope 23 can be calculated as: 4 x 50 cm = 200 cm.

[0038] In one embodiment of this utility model, the distance between the bottom wall of the workbench 12 and the ground should be greater than the distance between two adjacent scale line sleeves 231; this design is to enable the measuring ruler 30 to measure... Figure 8 The distance of segment a (segment a distance refers to the distance between the top wall of the hole and the scale line sleeve 231 immediately above the top wall of the hole).

[0039] Example of calculating the depth inside a hole using a measuring ruler 30: When calculating the depth inside a hole using a measuring ruler 30, combine with... Figure 1 and Figure 8 As shown, assuming the number on the scale sleeve 231 located immediately adjacent to the top wall of the hole to be measured is 4, the depth inside the hole is: 4 x 50 cm + (50 cm - distance a). The depth inside the hole can be calculated in this way.

[0040] In one embodiment of this utility model, the movable frame 10 has a through hole, and the workbench 12 has a through hole. The rope 23 passes through the through hole and the through hole. The inner diameter of the through hole is larger than the outer diameter of the counterweight shell 24. Here, the counterweight shell 24 can pass through the through hole on the movable frame 10 and move between the movable frame 10 and the workbench 12. In this way, during the movement of the device, the counterweight shell 24 can be retracted between the movable frame 10 and the workbench 12, avoiding the counterweight shell 24 from touching the ground during the movement of the device and improving the protection of the counterweight shell 24.

[0041] In one embodiment of this utility model, the take-up and release mechanism includes a take-up box 20, a wire roller 21, a pulley 22, and a drive assembly. The take-up box 20 is fixedly installed on the top wall of the workbench 12. A rotating shaft 214 is fixedly installed on the opposite side wall of the wire roller 21. The end of the rotating shaft 214 away from the wire roller 21 is rotatably installed on the inner wall of the take-up box 20. The top end of the rope 23 moves through the side wall of the take-up box 20 and is connected to the wire roller 21. The pulley 22 is rotatably installed on the outer wall of the take-up box 20. The drive assembly is installed on the take-up box 20 and is used to drive the wire roller 21 to rotate. Here, the take-up and release mechanism can perform the winding / unwinding operation of the rope 23 on the wire roller 21. The pulley 22 is used to change the direction of the rope 23 and improve the smoothness of the winding / unwinding process of the rope 23.

[0042] In one embodiment of this utility model, the drive assembly includes a worm gear 211, a worm 212, and a rotating wheel 213. The worm gear 211 is fixedly connected to the outer wall of one side of the rotating shaft 214, and the worm 212 is rotatably mounted on the inner wall of the take-up box 20. The worm gear 211 and the worm 212 mesh with each other. The rotating wheel 213 is fixedly connected to the end wall of the worm 212 away from the inner wall of the take-up box 20. To further facilitate the winding / unwinding of the rope 23, a drive assembly is provided, the specific principle of which is as follows: For example... When it is necessary to wind up rope 23, the rotating wheel 213 can be rotated counterclockwise. The rotating wheel 213 drives the worm 212 to rotate counterclockwise. The teeth on the outer wall of the worm 212 mesh with the teeth on the worm wheel 211, thereby driving the worm wheel 211 to rotate. After the worm wheel 211 rotates, it drives the rotating shaft 214 to rotate, which in turn drives the wire roller 21 to rotate. After the wire roller 21 rotates counterclockwise, the rope 23 can be wound onto the wire roller 21. Furthermore, the structure of the worm wheel 211 and the worm 212 has a self-locking function, which can stop winding / releasing the rope 23 at any time.

[0043] In one embodiment of this utility model, the measuring mechanism includes a measuring ruler 30 with scale lines. The outer walls of the worktable 12 and the movable frame 10 are both provided with through slots. The measuring ruler 30 is inserted into the through slots. A fixing component is provided on the worktable 12 to fix the position of the measuring ruler 30. When using the measuring ruler 30, the bottom end of the measuring ruler 30 can be moved to the ground close to the top wall of the hole, and then the length of the distance a can be observed through the scale lines on the measuring ruler 30.

[0044] In one embodiment of this utility model, the fixing component includes a support 31 fixedly installed on the outer wall of the workbench 12, and a threaded locking rod 32 threadedly installed on the support 31. The end wall of the threaded locking rod 32 presses against the side wall of the measuring ruler 30. In order to maintain the stability of the measuring ruler 30 during use, the support 31 and the threaded locking rod 32 are provided. By rotating the threaded locking rod 32, the thread on the outer wall of the threaded locking rod 32 engages with the inner wall of the threaded groove on the support 31, so that the end of the threaded locking rod 32 presses against the outer wall of the measuring ruler 30, thereby fixing the measuring ruler 30.

[0045] In one embodiment of this utility model, the detection mechanism includes a LoRa receiver 241, a pressure sensor 242, a controller 243, and a LoRa transmitter 244. The pressure sensor 242 is fixedly installed on the bottom wall of the counterweight shell 24, and the detection end of the pressure sensor 242 is located outside the counterweight shell 24. The controller 243 and the LoRa transmitter 244 are respectively fixedly installed inside the counterweight shell 24. The LoRa receiver 241 is placed on the ground. The pressure sensor 242 and the LoRa transmitter 244 are electrically connected to the controller 243, and the LoRa receiver 241 and the LoRa transmitter 244 communicate wirelessly. To more accurately determine whether the counterweight shell 24 has reached the bottom wall of the hole, a detection mechanism is provided. Its principle is as follows: when the counterweight shell 24... After moving down to the bottom of the hole, the detection end of the pressure sensor 242 contacts the bottom wall of the hole. At this time, the detection end of the pressure sensor 242 senses the pressure signal and converts it into an electrical signal, which is transmitted to the controller 243. The controller 243 transmits the received electrical signal to the LoRa transmitter 244. The transmitter 244 (e.g., model SX1278, 433MHz band, transmission power 10dBm) sends a bottom-touching command containing a unique device ID (e.g., "ID001+Bottom"). The LoRa receiver 241 (same model SX1278) continuously listens to the channel. After receiving the signal, it transmits it to the mobile phone Bluetooth module (HC-08) through the UART interface. After the mobile phone APP interprets the signal, it triggers an audio-visual reminder that the counterweight shell 24 has reached the bottom of the hole. At this time, the release of the rope 23 can be stopped.

[0046] In this embodiment, the working principle of the device is as follows: First, the device is moved above the hole to be tested, and then the take-up and release mechanism is started. The rotating wheel 213 drives the worm 212 to rotate, and the meshing worm wheel 211 drives the wire roller 21 to rotate, thereby releasing the rope 23 wound on it. The counterweight shell 24 at the bottom of the rope 23 is lowered into the hole to be tested along with the rope.

[0047] When the counterweight shell 24 touches the bottom, the pressure on the bottom wall triggers the pressure sensor 242, which transmits the signal to the controller 243, which then wirelessly transmits it to the LoRa receiver 241 on the ground via the LoRa transmitter 244. The receiver transmits the signal to the mobile APP via the Bluetooth module, triggering an audio and visual alert, at which point the release of the rope stops.

[0048] When measuring the depth of a hole, first fix the measuring ruler 30 with the threaded locking rod 32 of the fixing component, so that the bottom end of the measuring ruler is close to the ground of the top wall of the hole. Read the scale of the measuring ruler to obtain the distance a between the top wall of the hole and the leather sleeve 231 immediately above the scale line. Since the leather sleeves of the scale line are spaced 50 cm apart and numbered in sequence, assuming that the leather sleeve immediately above the top wall of the hole is numbered n, the depth of the hole is n×50 cm+(50 cm-a).

[0049] After the measurement is completed, the rotating wheel 213 is rotated in the opposite direction to wind up the rope through the wire roller. The counterweight shell 24 can be retracted through the through hole of the moving frame 10 to the space between the moving frame and the worktable to avoid damage from contact with the ground. Throughout the process, the self-locking function of the worm gear drive can lock the wire roller at any time to ensure stable measurement.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A borehole depth measuring device for geotechnical exploration, characterized by, include: Mobile rack (10) The workbench (12) has multiple connecting rods (11) fixedly installed on the outer wall of the movable frame (10), and one end of the connecting rod (11) away from the movable frame (10) is fixedly connected to the outer wall of the workbench (12); A take-up and put-down mechanism is mounted on the workbench (12); Rope (23), one end of which is installed inside the winding and unwinding mechanism, which can be used to wind / unwind the rope (23); Multiple scale line sleeves (231) are evenly spaced and installed on the outer wall of the rope (23); A measuring mechanism, which is mounted on a workbench (12), is used to assist in measuring the local length of a rope (23); The detection mechanism is installed at the bottom end of the rope (23) and is used to measure whether the bottom end of the counterweight shell (24) reaches the bottom position inside the hole.

2. The borehole depth measuring device for geotechnical investigation according to claim 1, characterized in that, The take-up and release mechanism includes a take-up box (20), a wire roller (21), a pulley (22), and a drive assembly. The take-up box (20) is fixedly installed on the top wall of the workbench (12). A rotating shaft (214) is fixedly installed on the opposite side wall of the wire roller (21). The end of the rotating shaft (214) away from the wire roller (21) is rotatably installed on the inner wall of the take-up box (20). The top end of the rope (23) moves through the side wall of the take-up box (20) and is connected to the wire roller (21). The pulley (22) is rotatably mounted on the outer wall of the take-up box (20). The drive assembly is mounted on the take-up box (20) and is used to drive the wire roller (21) to rotate.

3. The borehole depth measuring device for geotechnical investigation according to claim 2, characterized in that, The drive assembly includes a worm gear (211), a worm (212), and a rotary wheel (213). The worm gear (211) is fixedly connected to the outer wall of one side of the rotating shaft (214). The worm (212) is rotatably mounted on the inner wall of the take-up box (20), and the worm wheel (211) meshes with the worm (212). The wheel (213) is fixedly connected to the end wall of the worm (212) away from the inner wall of the take-up box (20).

4. The borehole depth measuring device for rock and soil geological exploration according to claim 3, characterized in that, The measuring mechanism includes a measuring ruler (30) with scale lines. The outer walls of the workbench (12) and the movable frame (10) are provided with through slots. The measuring ruler (30) is inserted into the through slots. The workbench (12) is provided with a fixing component for fixing the position of the measuring ruler (30).

5. The borehole depth measuring device for geotechnical investigation according to claim 4, characterized in that, The fixing component includes a support (31) fixedly installed on the outer wall of the workbench (12), and a threaded locking rod (32) is threadedly installed on the support (31), with the end wall of the threaded locking rod (32) pressing against the side wall of the measuring ruler (30).

6. The borehole depth measuring device for geotechnical investigation of claim 5, wherein, The detection mechanism includes a LoRa receiver (241), a pressure sensor (242), a controller (243), and a LoRa transmitter (244). The pressure sensor (242) is fixedly installed on the bottom wall of the counterweight shell (24), and the detection end of the pressure sensor (242) is located outside the counterweight shell (24). The controller (243) and the LoRa transmitter (244) are respectively fixedly installed inside the counterweight shell (24). The LoRa receiver (241) is placed on the ground. The pressure sensor (242) and the LoRa transmitter (244) are electrically connected to the controller (243), and the LoRa receiver (241) and the LoRa transmitter (244) communicate wirelessly.

7. The borehole depth measuring device for geotechnical investigation according to claim 6, characterized in that, The movable frame (10) has a through hole, and the workbench (12) has a through hole. The rope (23) moves through the through hole and the through hole. The inner diameter of the through hole is larger than the outer diameter of the counterweight shell (24).

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