Landslide displacement monitoring device

Abstract

The utility model provides a landslide displacement monitoring device which comprises a pile frame and a displacement sensor, a pull rope is arranged on the displacement sensor, the pile frame comprises a pile rod and a mounting plate located at the bottom of the pile rod, and an anchor rod is fixedly connected to the bottom of the mounting plate. The top of the mounting plate is fixedly connected with a connecting shaft which is in spherical hinge connection with the bottom of the pile rod, the top of the mounting plate is provided with a rotating disc which is coaxial with the connecting shaft, and the top of the rotating disc is rotationally connected with a door-shaped frame which is close to the side. According to the utility model, the pile frame comprises the mounting plate and the pile rod, the mounting plate is in spherical hinge connection with the pile rod, so that the pile rod can be conveniently adjusted to be in a vertical state after the mounting plate is inclined, and the rotating disc, the door-shaped frame and the guide sleeve are arranged on the mounting plate, so that the adjusted pile column can be locked; compared with the prior art, the rainwater impact resistance strength of the pile frame is improved, and the service life of the device is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of geological disaster monitoring, in particular to a landslide displacement monitoring device. Background Art

[0002] Landslide is one of the most common and important geological disasters, which poses a serious threat to human life and property. Landslide displacement monitoring and early warning based on displacement are important means of landslide geological disaster prevention and research. Due to the different structural types, causal mechanisms and evolution processes of landslides, there are many different methods for monitoring landslide displacement. The main methods currently include: landslide displacement monitoring method based on GPS monitoring pier, landslide displacement monitoring method based on distributed optical fiber, and landslide displacement monitoring method based on photoelectric signals.

[0003] The utility model with publication number CN207556493U proposes a landslide displacement monitoring device, which is characterized by: having a reference pile and a monitoring pile respectively anchored on the landslide; wherein the reference pile is equipped with a displacement monitoring module for real-time monitoring of the relative displacement between the reference pile and the monitoring pile, an information sending module for obtaining relative displacement information through the displacement monitoring module and sending it to the outside, and a power supply module for powering the displacement monitoring module and the information sending module.

[0004] However, the above-mentioned prior art still has the following shortcomings when used: the bottom of the monitoring pile is installed on the slope through an anchor rod. Since the slope has a certain slope, the monitoring pile is prone to tilt after installation. Due to long-term rain erosion, the monitoring pile is easy to topple over due to its own weight, thereby affecting displacement monitoring.

[0005] To this end, the utility model provides a landslide displacement monitoring device. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a landslide displacement monitoring device to solve the problems raised in the above-mentioned background technology. The utility model has the function of adjusting the pile rod to a vertical state on a slope with any inclination angle, which greatly improves the strength of the pile rod to resist rain erosion and extends the service life of the pile frame.

[0007] To achieve the above object, the utility model is realized by the following technical solutions: A landslide displacement monitoring device includes a pile frame and a displacement sensor. A pull rope is arranged on the displacement sensor. The pile frame includes a pile rod and a mounting plate at the bottom of the pile rod. An anchor rod is fixedly connected to the bottom of the mounting plate. A connecting shaft that is ball-jointed to the bottom of the pile rod is fixedly connected to the top of the mounting plate. A turntable coaxial with the connecting shaft is arranged on the top of the mounting plate. A gantry frame near the side is rotatably connected to the top of the turntable. A guide sleeve sleeved outside the pile rod is rotatably connected to the cross beam of the gantry frame. The guide sleeve is slidably connected to the pile rod and a first locking bolt is screwed through its outer peripheral wall. A second locking bolt is screwed through the top of the turntable.

[0008] Further, a positioning sleeve that is sleeved outside the connecting shaft with a gap is welded to the top of the mounting plate. A limiting sleeve sleeved outside the positioning sleeve is welded to the middle of the turntable. The limiting sleeve is rotatably connected to the positioning sleeve.

[0009] Further, limiting grooves that are circumferentially and uniformly distributed relative to the positioning sleeve are opened on the upper end surface of the mounting plate. The limiting grooves are in plug-in fit with the second locking bolt.

[0010] Further, a conical rod is welded to the bottom of the second locking bolt. The limiting groove and the conical rod are of a conical groove structure for cooperation.

[0011] Further, a connecting shaft is welded to the open end of the gantry frame. Limiting tubes sleeved at both ends of the connecting shaft are welded to the top of the turntable. The limiting tubes are rotatably connected to the connecting shaft.

[0012] Further, guiding grooves distributed axially are opened on the outer peripheral wall of the pile rod. A pressing block located in the guiding groove is welded to one end of the first locking bolt.

[0013] Further, a support shaft is rotatably connected to the top of the pile rod. A positioning plate is rotatably connected to the top of the support shaft. The rotation axis of the positioning plate is perpendicular to the rotation axis of the support shaft.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, the provided pile frame includes a mounting plate and a pile rod. Among them, the mounting plate and the pile rod are ball-jointed. This kind of setting makes it convenient to adjust the pile rod to be in a vertical state after the mounting plate is inclined. A turntable, a gantry frame and a guide sleeve are arranged on the mounting plate, which can lock the adjusted pile column. Compared with the prior art, it has the advantage of improving the strength of the pile frame against rainwater impact, and greatly prolongs the service life of the device.

[0016] 2. In the present utility model, the turntable penetrates through and is screwed with the second locking bolt, and the first locking bolt penetrates through and is screwed onto the guide sleeve. By tightening the second locking bolt and the first locking bolt, the adjusted pile rod can be fixed, which has the advantage of more convenient adjustment and locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a landslide displacement monitoring device of the present utility model;

[0018] Figure 2 It is a schematic diagram after the turntable and the mounting plate of a landslide displacement monitoring device of the present utility model are exploded and unfolded;

[0019] Figure 3 It is a top view of the guide sleeve of a landslide displacement monitoring device of the present utility model.

[0020] In the figure: 1, pile frame; 11, pile rod; 111, guide groove; 121, connecting shaft; 12, mounting plate; 121, connecting shaft; 122, positioning sleeve; 123, anchor rod; 124, limiting groove; 2, displacement sensor; 21, pulling rope; 3, turntable; 31, limiting sleeve; 32, limiting tube; 33, second locking bolt; 331, conical rod; 4, gantry; 41, connecting shaft; 5, guide sleeve; 51, first locking bolt; 511, pressing block; 6, support shaft; 7, positioning plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a landslide displacement monitoring device, including a pile frame 1 and a monitoring module. The monitoring module includes a displacement sensor 2. A pulling rope 21 is arranged on the displacement sensor 2. During use, the two pile frames 1 are installed up and down along the slope surface, and then the displacement sensor 2 is installed on the top pile frame 1. One end of the pulling rope 21 is connected to a lower pile frame 1 through a hanging ring. When the lower pile frame 1 slides along with the slope surface, the displacement sensor 2 will be triggered.

[0023] In this technical solution, the above-mentioned pile frame 1 includes a pile rod 11 and a mounting plate 12 located at the bottom of the pile rod 11. An anchor rod 123 is fixedly connected to the bottom of the mounting plate 12. The mounting plate 12 is fixedly installed on the slope surface through the anchor rod 123. A connecting shaft 121 that is ball-jointed to the bottom of the pile rod 11 is fixedly connected to the top of the mounting plate 12. At this time, the pile rod 11 can move in all directions.

[0024] Further, a turntable 3 coaxial with the connecting shaft 121 is provided on the top of the mounting plate 12. Preferably, during specific implementation, a positioning sleeve 122 is welded to the top of the mounting plate 12 and sleeved around the outside of the connecting shaft 121 with a gap. A limiting sleeve 31 sleeved around the outside of the positioning sleeve 122 is welded to the middle of the turntable 3. The limiting sleeve 31 is rotatably connected to the positioning sleeve 122, and the limiting sleeve 31 and the positioning sleeve 122 are connected in a clearance fit manner.

[0025] A gantry frame 4 near the side is rotatably connected to the top of the turntable 3. Preferably, during specific implementation, a connecting shaft 41 is welded to the open end of the gantry frame 4. Limiting tubes 32 sleeved around both ends of the connecting shaft 41 are welded to the top of the turntable 3. The limiting tubes 32 are rotatably connected to the connecting shaft 41. That is to say, the gantry frame 4 is located on one side of the connecting shaft 121. When the turntable 3 rotates, it drives the gantry frame 4 to revolve relative to the connecting shaft 121. A guide sleeve 5 sleeved around the outside of the pile rod 11 is rotatably connected to the cross beam of the gantry frame 4. During specific implementation, a connecting sleeve sleeved around the cross beam can be welded to the outer peripheral wall of the guide sleeve 5. The guide sleeve 5 is slidably connected to the pile rod 11, and a first locking bolt 51 is screwed through the outer peripheral wall of the guide sleeve 5. When the first locking bolt 51 is tightened, its function is to lock the guide sleeve 5 and the pile rod 11. A second locking bolt 33 is screwed through the top of the turntable 3. When the second locking bolt 33 is tightened, its function is to lock the turntable 3 and the mounting plate 12. This kind of setting enables the pile frame 1 to be on any inclined slope surface, facilitating the adjustment of the pile rod 11 to the best supporting position. For example, when the mounting plate 12 is installed and inclined relative to the horizontal plane, after adjustment, the pile rod 11 is in a vertical state.

[0026] In this embodiment, limiting grooves 124 evenly distributed circumferentially relative to the positioning sleeve 122 are formed on the upper end surface of the mounting plate 12. The limiting grooves 124 are in plug-in fit with the second locking bolt 33. That is to say, when the second locking bolt 33 is tightened, its bottom will insert into the limiting grooves 124, thereby locking the mounting plate 12 and the turntable 3.

[0027] Further, a conical rod 331 is welded to the bottom of the second locking bolt 33. The limiting groove 124 and the conical rod 331 are in a conical groove structure. This kind of setting makes the locking between the mounting plate 12 and the turntable 3 more firm and there will be no problem of shaking.

[0028] In this embodiment, guide grooves 111 distributed axially are formed on the outer peripheral wall of the pile rod 11. A pressing block 511 located in the guide grooves 111 is welded to one end of the first locking bolt 51. When the pile rod 11 is adjusted in all directions, the pressing block 511 is always located in the guide grooves 111. When the first locking bolt 51 is tightened, the pressing block 511 can press against the bottom of the guide grooves 111, thereby locking the guide sleeve 5 and the pile rod 11.

[0029] In this embodiment, a support shaft 6 is rotatably connected to the top of the pile rod 11. The support shaft 6 is coaxial with the pile rod 11. The top of the support shaft 6 is rotatably connected to a positioning plate 7. The rotation axis of the positioning plate 7 is perpendicular to the rotation axis of the support shaft 6. The positioning plate 7 is used to install the monitoring module. When in use, the displacement sensor 2 on the monitoring module is fixedly installed on the positioning plate 7 at the top of a pile frame 1. The specific installation method can be bolt connection or other existing clamping connection methods. Then, one end of the pulling rope 21 is tightly connected to the positioning plate 7 at the top of another pile frame 1. After the pulling rope 21 is tightened, the positioning plates 7 on the two pile rods 11 will be adapted to be opposite to each other. A hanging ring for connecting with the pulling rope 21 can be installed on the positioning plate 7.

[0030] Working principle: When in use, one pile frame 1 is used as a reference and then installed at the top of the slope. During installation, the mounting plate 12 at the bottom of the pile frame 1 is installed on the slope through the anchor bolt 123. The mounting plate 12 is installed in a non-horizontal state. At this time, by rotating the turntable 3 and cooperating with the guide sleeve 5, the pile rod 11 on the inclined mounting plate 12 can be adjusted to the vertical state. Then, use a wrench to tighten the locking bolt 1 51 and the locking bolt 2 33. At this time, the current pile frame 1 is installed. Then, install the pile frame 1 acting as the monitoring pile in the above manner. Finally, connect the positioning plates 7 at the tops of the two pile frames 1 through the pulling rope 21. Among them, the structures disclosed in this application all adopt the structures in the patent documents mentioned in the background technology.

[0031] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A landslide displacement monitoring device, comprising a pile frame (1) and a displacement sensor (2), wherein a pull rope (21) is arranged on the displacement sensor (2), characterized in that: The pile frame (1) comprises a pile rod (11) and a mounting plate (12) located at the bottom of the pile rod (11); the bottom of the mounting plate (12) is fixedly connected to an anchor rod (123); the top of the mounting plate (12) is fixedly connected to a connecting shaft (121) connected to a ball joint at the bottom of the pile rod (11); a rotating disk (3) coaxial with the connecting shaft (121) is arranged at the top of the mounting plate (12); the top of the rotating disk (3) is rotatably connected to a portal frame (4) close to the side; a guide sleeve (5) sleeved on the outside of the pile rod (11) is rotatably connected to the crossbeam of the portal frame (4); the guide sleeve (5) is slidably connected to the pile rod (11) and a locking bolt (51) is screwed through the outer peripheral wall thereof; and a locking bolt (33) is screwed through the top of the rotating disk (3).

2. A landslide displacement monitoring device according to claim 1, characterized in that: A positioning sleeve (122) is welded on the top of the mounting plate (12) and is sleeved on the outside of the connecting shaft (121) with a gap, and a limiting sleeve (31) is welded on the middle of the rotating disk (3) and is sleeved on the outside of the positioning sleeve (122). The limiting sleeve (31) and the positioning sleeve (122) are rotatably connected.

3. A landslide displacement monitoring device according to claim 1, characterized in that: The upper end surface of the mounting plate (12) is provided with limiting grooves (124) which are evenly distributed in the circumferential direction relative to the positioning sleeve (122), and the limiting grooves (124) are plug-fitted with the second locking bolt (33).

4. A landslide displacement monitoring device according to claim 3, characterized in that: A conical rod (331) is welded to the bottom of the second locking bolt (33), and the limiting groove (124) is a conical groove structure that matches the conical rod (331).

5. A landslide displacement monitoring device according to claim 1, characterized in that: A connecting shaft (41) is welded to the open end of the door frame (4), and a limiting tube (32) sleeved on both ends of the connecting shaft (41) is welded to the top of the rotating disk (3), and the limiting tube (32) and the connecting shaft (41) are rotatably connected.

6. A landslide displacement monitoring device according to claim 1, characterized in that: An axially distributed guide groove (111) is formed on the outer peripheral wall of the pile rod (11), and a pressure block (511) located in the guide groove (111) is welded to one end of the locking bolt (51).

7. A landslide displacement monitoring device according to claim 1, characterized in that: The top of the pile rod (11) is rotatably connected to a support shaft (6), and the top of the support shaft (6) is rotatably connected to a positioning plate (7), and the rotation axis of the positioning plate (7) is perpendicular to the rotation axis of the support shaft (6).

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