Displacement monitoring device for landslide monitoring

Abstract

The utility model provides a displacement monitoring device for landslide monitoring, which relates to the technical field of geological landslide monitoring devices and comprises a monitoring box body, the monitoring box body is fixed in a slope body to be measured through a fixing rod, a rotating shaft is arranged in the monitoring box body, and a monitoring pull rope is wound on the rotating shaft. One end of the monitoring pull rope is fixed on the rotating shaft, and the other end of the monitoring pull rope is a connecting end; the connecting end of the monitoring pull rope penetrates through the pull rope hole and is connected with the fixed rock mass; a monitoring dial is arranged on the outer side of the monitoring box body, and a rotating pointer is fixedly arranged on the rotating shaft; the beneficial effects of the utility model are that: when the slope body to be measured has landslide, the monitoring pull rope is partially pulled out of the monitoring box body to drive the rotating pointer to rotate, the displacement of the landslide of the slope body to be measured can be read through the position of the rotating end part of the pointer, and the process of monitoring the slope body to be measured is completed. And the displacement of the slope landslide can be amplified by multiple times by the displacement of the rotation of the rotating pointer, so that the slope monitoring precision is improved, and early warning of landslide disasters is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of geological landslide monitoring devices, specifically a displacement monitoring device for monitoring landslides. Background Technology

[0002] Landslides are a common geological hazard. When a landslide occurs, the soil and rock mass slides down the weak surface, either as a whole or in scattered pieces. This not only damages infrastructure such as roads, bridges, and houses, but can also bury farmland, block rivers, and even cause significant casualties and property damage. In the early stages of a landslide, the slope typically experiences minor displacement, indicating a short interval before the full occurrence of the disaster. Therefore, real-time and accurate displacement monitoring is crucial for early warning and disaster prevention and mitigation. Currently, landslide monitoring technologies mainly include GNSS (Global Navigation Satellite System) monitoring, inclinometer measurement, fiber optic sensing, and traditional mechanical displacement measurement devices. These technologies generally suffer from insufficient measurement accuracy and a lack of proactive early warning capabilities. Insufficient accuracy can lead to low sensitivity in monitoring early-stage landslides, failing to accurately capture the slow sliding trend of the slope. Therefore, there is an urgent need for a simple, high-precision landslide displacement monitoring device to improve the monitoring efficiency and early warning capabilities of landslide disasters, providing reliable technical support for disaster prevention and mitigation. Utility Model Content

[0003] In view of this, the present invention provides a displacement monitoring device for landslide monitoring, comprising a monitoring box, a fixing rod at the bottom of the monitoring box, the fixing rod being fixed to the slope to be measured, a partition plate in the middle of the monitoring box, and a rotating shaft inside the monitoring box; the side wall of the monitoring box is provided with a rope hole and a rotating groove, a monitoring rope is wound on the rotating shaft, one end of the monitoring rope is fixed to the rotating shaft, and the other end of the monitoring rope is a connecting end, the connecting end of the monitoring rope passing through the rope hole and connected to the fixed rock mass;

[0004] The monitoring box is provided with a monitoring scale on the outside, and a rotating pointer is fixed on the rotating shaft. The rotating pointer passes through the rotating slot and extends to the top of the monitoring scale.

[0005] The monitoring box is also equipped with an elastic element, one end of which is connected to the rotating shaft and the other end is connected to the partition plate.

[0006] Furthermore, the monitoring box includes an upper shell and a lower shell, which are respectively fixedly connected to the middle partition. The pull rope hole is located on the upper shell, and the rotating slot hole is located on the lower shell.

[0007] Furthermore, the end of the rotating pointer is provided with a fixing ring sleeve, which is located inside the lower housing and is sleeved on the rotating shaft.

[0008] Furthermore, the rotating shaft is provided with a stepped ring, the outer wall of the portion of the rotating shaft located below the stepped ring is provided with external threads, and a fastening nut is also fitted at the lower end of the rotating shaft, the fastening nut pressing the fixing ring tightly against the bottom of the stepped ring.

[0009] Furthermore, it also includes an anchor rod and a fixing rope. The anchor rod is anchored in the fixed rock mass, one end of the fixing rope is fixed to the anchor rod, and the other end of the fixing rope is connected to the monitoring pull rope.

[0010] Furthermore, an observation box is fixedly installed on the outer wall of the monitoring box, the rotating slot connects the monitoring box and the observation box, and the monitoring scale is located inside the observation box.

[0011] Furthermore, the observation box is also equipped with a landslide early warning component. The landslide early warning component includes a trigger switch interconnected with alarms. The trigger switch is equipped with a trigger circuit board. The trigger circuit board is equipped with a first contact wire and a second contact wire. The first contact wire is connected to the rotating pointer, and the second contact wire is connected to the wire contact rod. The wire contact rod is fixed on the monitoring scale.

[0012] Furthermore, the alarm is an audible and visual alarm.

[0013] Furthermore, the end of the monitoring pull rope is provided with a rope connector, and the fixing rope is connected to the monitoring pull rope through the rope connector.

[0014] Furthermore, the fixing rod is also provided with a fixing plate, the fixing plate is also provided with multiple locking holes, and a locking rod is provided in the locking hole, the locking rod being anchored to the slope body to be measured.

[0015] The beneficial effects of this displacement monitoring device for landslide monitoring are as follows: The device includes a monitoring box, which is fixed to the slope to be monitored by a fixing rod. A rotating shaft is installed inside the monitoring box, and a monitoring rope is wound around the rotating shaft. One end of the monitoring rope is fixed to the rotating shaft, and the other end is a connecting end, which passes through a rope hole and connects to the fixed rock mass. A monitoring scale is installed on the outside of the monitoring box, and a rotating pointer is fixed on the rotating shaft. When a landslide occurs on the slope to be monitored, the monitoring rope is partially pulled out of the monitoring box. At this time, the monitoring rope pulls the rotating shaft to rotate, thereby driving the rotating pointer to rotate. By reading the rotation of the pointer relative to the scale of the monitoring dial, the displacement of the landslide on the slope to be monitored can be determined, thus realizing the monitoring process of the slope to be monitored. Furthermore, the displacement of the rotating pointer can amplify the displacement of the landslide by many times, thereby accurately displaying even small landslide displacements on the slope to be monitored, improving the accuracy of slope monitoring, and enabling early warning of landslide disasters.

[0016] The displacement monitoring device also includes a landslide early warning component, which includes an alarm and a trigger switch. The trigger switch can be triggered when the displacement of the slope to be measured reaches a predetermined value, thereby issuing a landslide early warning alarm through the alarm to avoid delays in responding to landslide disasters. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the working structure of a displacement monitoring device for landslide monitoring according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the monitoring box of a displacement monitoring device for landslide monitoring according to an embodiment of this utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a top view of the monitoring box of a displacement monitoring device for landslide monitoring according to an embodiment of this utility model.

[0021] In the above diagram: 1-Monitoring box, 11-Fixing rod, 12-Fixing disc, 13-Locking rod, 14-Rotating slot, 2-Partition plate, 21-Elastic element, 3-Rotating shaft, 31-Fastening nut, 4-Monitoring rope, 41-Rope connector, 5-Rotating pointer, 51-Fixing ring, 6-Observation box, 61-Monitoring scale, 62-Trigger switch, 63-Alarm, 64-Wire contact rod, 7-Fixing rock mass, 71-Slope to be measured, 8-Anchor rod, 81-Fixing rope. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] Please refer to Figures 1 to 4 This utility model discloses a displacement monitoring device for landslide monitoring, comprising a cylindrical monitoring box 1. The bottom of the monitoring box 1 is provided with a connecting and fixing rod. Specifically, the monitoring box 1 has a connecting sleeve, and the top of the fixing rod 11 is threaded into the connecting sleeve. The lower end of the fixing rod 11 is a pointed structure. The fixing rod 11 is fixed inside the slope 71 to be measured. A central partition 2, which is a circular ring structure, is provided in the middle of the monitoring box 1. A rotating shaft 3 is provided inside the monitoring box 1. The monitoring box 1 is rotatably mounted on a bearing. The rotating shaft 3 is coaxially mounted with the monitoring box 1. The side wall of the monitoring box 1 is provided with a pull rope hole and a rotating slot 14. A monitoring pull rope 4 is wound on the rotating shaft 3. One end of the monitoring pull rope 4 is fixed to the rotating shaft 3, and the other end is the connecting end. The connecting end of the monitoring pull rope 4 passes through the pull rope hole and is connected to the fixed rock mass 7. The fixed rock mass 7 has a stable structure. When the slope 71 to be measured is displaced, the fixed rock mass 7 will not move synchronously with the slope 71 to be measured.

[0024] The monitoring box 1 is provided with a monitoring scale 61 on the outside, and a rotating pointer 5 is fixed on the rotating shaft 3. The rotating pointer 5 extends through the rotating slot 14 to the top of the monitoring scale 61.

[0025] The monitoring box 1 is also provided with an elastic element 21. One end of the elastic element 21 is connected to the rotating shaft 3 and the other end is connected to the middle partition 2. The elastic element 21 is used to tighten the rotating shaft 3 and provide torque to the rotating shaft 3, so that the monitoring pull rope 4 is in a taut state. In this embodiment, the elastic element 21 is two springs in a stretched state.

[0026] When a landslide occurs on the slope 71 under test, the slope 71 causes the monitoring box 1 to slide down, and the monitoring rope 4 is partially pulled out of the monitoring box 1. At this time, the monitoring rope 4 pulls the rotating shaft 3 to rotate, which in turn drives the rotating pointer 5 to rotate. The monitoring personnel can then read the displacement of the landslide on the slope 71 by reading the rotation of the pointer 5 relative to the scale of the monitoring dial 61, thus realizing the monitoring process of the slope 71 under test. Furthermore, the length of the rotating pointer 5 is relatively long relative to the radius (or diameter) of the rotating shaft 3, and the displacement of the rotating pointer 5 can be magnified many times, so that even the smallest landslide displacement of the slope 71 under test can be accurately displayed, thereby improving the accuracy of slope monitoring and realizing early warning of landslide disasters.

[0027] The outer wall of the monitoring housing 1 of the displacement monitoring device is also fixedly equipped with an observation box 6. The rotating slot 14 connects the monitoring housing 1 and the observation box 6. The monitoring scale 61 is located inside the observation box 6. The observation box 6 is made of transparent material to facilitate the reading of landslide displacement data by monitoring personnel. The observation box 6 is also equipped with a landslide early warning component, which includes an alarm 63 and a trigger switch 62. The alarm 63 and the trigger switch 62 are electrically connected. The trigger switch 62 is equipped with a trigger circuit board. The trigger circuit board is equipped with a first contact wire and a second contact wire. The first contact wire is connected to the rotating pointer 5, and the second contact wire is connected to the wire contact rod 64. The wire contact rod 64 is vertically fixed on the monitoring scale 61. The wire contact rod 64 and the rotating pointer 5 are both made of conductive material. The wire contact rod 64 has high elasticity. The fixed position of the wire contact rod 64 can be set to a predetermined alarm value. The alarm 63 is an audible and visual alarm. The trigger circuit board is equipped with a miniature power supply. When the pointer 5 rotates to the contact wire rod 64, the first and second contact wires of the trigger switch 62 form a conductive circuit, thereby triggering the trigger switch 62. After the trigger switch 62 is triggered, it actively issues a landslide early warning alarm through the alarm 63 to avoid delays in the response to landslide disasters and achieve the purpose of disaster prevention and mitigation.

[0028] In a preferred embodiment, the monitoring housing 1 includes an upper shell and a lower shell, which are respectively fixedly connected to the middle partition 2. The upper shell, lower shell, and middle partition 2 are locked together by bolts. The pull rope hole is located on the upper shell, and the rotating slot 14 is located on the lower shell. This split structure of the upper and lower shells makes the monitoring housing 1 easy to disassemble and maintain.

[0029] In a preferred embodiment, the end of the rotating pointer 5 is provided with a fixing ring 51, which is located inside the lower housing and is fitted onto the rotating shaft 3. The rotating shaft 3 is provided with a stepped ring, and the outer wall of the portion of the rotating shaft 3 below the stepped ring is provided with external threads. A fastening nut 31 is also fitted onto the lower end of the rotating shaft 3, which presses the fixing ring 51 against the bottom of the stepped ring, thereby fixing the rotating pointer 5 onto the rotating shaft 3.

[0030] In a preferred embodiment, the displacement monitoring device includes an anchor rod 8 and a fixing rope 81. The anchor rod 8 is anchored within a fixed rock mass 7. One end of the fixing rope 81 is fixed to the anchor rod 8, and the other end of the fixing rope 81 is connected to the monitoring pull rope 4. The monitoring pull rope 4 has a rope connector 41 at its end. The fixing rope 81 and the monitoring pull rope 4 are connected via the rope connector 41. The rope connector 41 is a technical specification, and its detailed structure is not described in detail here. The rope connector 41 facilitates the connection between the monitoring pull rope 4 and the fixing rope 81, thus making the displacement monitoring device easy to disassemble and install.

[0031] In a preferred embodiment, the fixing rod 11 is further provided with a fixing plate 12, and the fixing plate is further provided with a plurality of locking holes. A locking rod 13 is provided in the locking holes. The locking rod 13 is anchored in the slope to be measured 71. The structure of the fixing plate 12 and the locking rod 13 can prevent the fixing rod 11 from tilting to the side, ensure the stability of the monitoring box 1 relative to the slope to be measured 71, and improve the monitoring accuracy.

[0032] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0033] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A displacement monitoring device for monitoring landslides, characterized by: The system includes a monitoring box, a fixing rod at the bottom of which is fixed to the slope to be measured, a partition in the middle of the monitoring box, and a rotating shaft inside the monitoring box. The side wall of the monitoring box has a rope hole and a rotating groove. A monitoring rope is wound around the rotating shaft. One end of the monitoring rope is fixed to the rotating shaft, and the other end of the monitoring rope is a connecting end. The connecting end of the monitoring rope passes through the rope hole and is connected to the fixed rock mass. The monitoring box is provided with a monitoring scale on the outside, and a rotating pointer is fixed on the rotating shaft. The rotating pointer passes through the rotating slot and extends to the top of the monitoring scale. The monitoring box is also equipped with an elastic element. One end of the elastic element is connected to the rotating shaft, and the other end is connected to the partition plate. The elastic element is used to provide torque to the rotating shaft to tighten the pull rope.

2. The displacement monitoring device for monitoring landslides according to claim 1, characterized in that: The monitoring box includes an upper shell and a lower shell, which are fixedly connected to the middle partition. The pull rope hole is located on the upper shell, and the rotation slot is located on the lower shell.

3. The displacement monitoring device for monitoring landslides according to claim 2, characterized in that: The end of the rotating pointer is provided with a fixing ring, which is located inside the lower housing and is fitted onto the rotating shaft.

4. The displacement monitoring device for monitoring landslides according to claim 3, characterized in that: The rotating shaft is provided with a stepped ring, and the outer wall of the part of the rotating shaft located below the stepped ring is provided with external threads. A fastening nut is also fitted at the lower end of the rotating shaft, and the fastening nut presses the fixing ring tightly against the bottom of the stepped ring.

5. The displacement monitoring device for monitoring landslides according to claim 1, characterized in that: It also includes an anchor rod and a fixing rope. The anchor rod is anchored in the fixed rock mass, one end of the fixing rope is fixed to the anchor rod, and the other end of the fixing rope is connected to the monitoring rope.

6. The displacement monitoring device for monitoring landslides according to claim 1, characterized in that: An observation box is fixedly installed on the outer wall of the monitoring box, the rotating slot connects the monitoring box and the observation box, and the monitoring scale is located inside the observation box.

7. The displacement monitoring device for monitoring landslides according to claim 6, characterized in that: The observation box is also equipped with a landslide early warning component. The landslide early warning component includes a trigger switch with alarms connected to each other. The trigger switch has a trigger circuit board. The trigger circuit board has a first contact wire and a second contact wire. The first contact wire is connected to the rotating pointer, and the second contact wire is connected to the wire contact rod. The wire contact rod is fixed on the monitoring scale.

8. The displacement monitoring device for monitoring landslides according to claim 7, characterized in that: The alarm is an audible and visual alarm.

9. The displacement monitoring device for monitoring landslides according to claim 5, characterized in that: The monitoring pull rope is equipped with a rope connector at its end, and the fixing rope is connected to the monitoring pull rope through the rope connector. 10.The displacement monitoring device for landslide monitoring according to claim 1, characterized in that: The fixing rod is also provided with a fixing plate, and the fixing plate is also provided with multiple locking holes. A locking rod is provided in the locking hole, and the locking rod is anchored to the slope body to be measured.

Images