An underground settlement monitoring device

Abstract

An underground settlement monitoring device belongs to the technical field of underground structure safety monitoring. The utility model solves the problems of long monitoring period and high labor cost ratio of the settlement of underground pipeline depending on manual leveling. The utility model discloses a clamp, detachable base and sensor fusion unit, a plurality of clamps are uniformly arranged on the pipeline, a detachable base is arranged on each clamp, the sensor fusion unit is installed on the clamp through the detachable base, the sensor fusion unit comprises a static level, an inclination sensor, a wireless transmission module and a shell, the static level, the inclination sensor and the wireless transmission module are integrated in the shell, a probe head is installed on the shell, the shell is installed on the detachable base, and the static level and the inclination sensor are connected with the wireless transmission module respectively. The utility model discloses a kind of underground settlement monitoring device, which reduces artificial monitoring cost, improves the accuracy and real-time performance of pipeline settlement monitoring in underground pipe gallery.

Description

Technical Field

[0001] This utility model belongs to the field of underground structure safety monitoring technology, specifically relating to an underground settlement monitoring device. Background Technology

[0002] The basic structure of underground utility tunnels typically consists of multiple independent compartments, each housing different types of pipelines, such as water, electricity, and gas, to ensure the relative independence and safety of each type of pipeline. In terms of operation and maintenance, common structural problems in underground utility tunnels include settlement, cracks, and water seepage. Therefore, monitoring pipeline settlement in underground utility tunnels is extremely important. Pipeline settlement can cause misalignment of socket joints, leading to leaks. Uneven settlement can also cause circumferential cracks in cast iron and concrete pipes.

[0003] Relying on manual leveling or semi-automatic equipment results in long monitoring cycles and high labor costs. Installing sensors on pipelines is complex, and most sensor devices are fixed, making disassembly difficult. In damp underground environments, sensor components require regular maintenance. Fixed installations, however, are detrimental to equipment operation and maintenance.

[0004] Therefore, this application proposes an underground subsidence monitoring device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems of relying on manual leveling to measure the settlement of underground pipelines, which involves long monitoring cycles and high labor costs. A brief overview of this invention is provided below to offer a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention.

[0006] The technical solution of this utility model:

[0007] An underground settlement monitoring device includes clamps, a detachable base, and a sensor fusion unit. Multiple clamps are evenly arranged on the pipeline, and each clamp is equipped with a detachable base. The sensor fusion unit is mounted on the clamps via the detachable base. The sensor fusion unit includes a hydrostatic level, an inclination sensor, a wireless transmission module, and a housing. The hydrostatic level, inclination sensor, and wireless transmission module are integrated inside the housing. A probe is mounted on the housing. The housing is mounted on the detachable base. The hydrostatic level and inclination sensor are respectively connected to the wireless transmission module.

[0008] Furthermore, the housing is provided with a first through hole and a second through hole, the outer wall of the housing is hinged to the pitch adjustment seat, the pitch adjustment seat is mounted on the base via a pivot, and the base is connected to the detachable base.

[0009] Furthermore, the detachable base includes a mounting plate, a sliding plate, a column, and a magnetic base. A guide column is provided at the bottom of the mounting plate, and the sliding plate is slidably mounted on the bottom of the mounting plate via the guide column. A second sliding groove is machined on the sliding plate, and the guide column is connected to the second sliding groove. A first sliding groove is machined on the mounting plate. One end of the column is mounted on the sliding plate and secured with a locking nut, and the other end of the column passes through the sliding plate and the first sliding groove and is connected to the magnetic base. A corresponding connecting groove is machined on the bottom of the base, and the base is connected to the magnetic base via the connecting groove.

[0010] Furthermore, the bottom of the mounting plate is provided with a mounting base, which is integrally formed with the mounting plate. The mounting base is machined with a threaded hole, and the second screw is connected to the mounting base through the threaded hole. The second screw passes through the mounting base and is fixedly connected to the sliding plate.

[0011] Furthermore, the mounting plate is machined with connecting holes, and a first screw is installed on the clamp. The first screw passes through the connecting holes of the mounting plate to fix the mounting plate to the clamp.

[0012] Furthermore, the clamp is a chain clamp, which includes a connecting rod, a side wall clamping block, a top clamping block, a bottom connecting block, and a locking screw. Two side wall clamping blocks are symmetrically arranged on both sides of the pipe. One end of the side wall clamping block is connected to the top clamping block through the connecting rod, and the other end of the side wall clamping block is connected to the bottom connecting block through the connecting rod. The two bottom connecting blocks are connected and locked by the locking screw.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model discloses an underground settlement monitoring device. By cooperating with the pipeline through clamps, a sensor fusion unit is placed on the pipeline. The level and tilt sensor integrated in the sensor fusion unit can monitor the settlement of the pipeline in real time, and transmit the data to the front end through a wireless transmission module, thereby reducing the cost of manual monitoring and improving the accuracy and real-time performance of monitoring the settlement of pipelines in underground utility tunnels.

[0015] 2. This utility model discloses an underground settlement monitoring device. The base of the sensor fusion unit is magnetically connected to the magnetic base on the detachable base, allowing the sensor fusion unit to be periodically removed for maintenance and replacement of its internal sensor modules. The disassembly and assembly steps are simple. The sensor fusion unit itself has pitch and axial rotation functions, and the detachable base also has lateral movement functions, enabling faster initial adjustment and calibration of each sensor after the sensor fusion unit is installed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation of an underground settlement monitoring device.

[0017] Figure 2 This is a structural diagram of the clamp;

[0018] Figure 3 This is a bottom view of the detachable base;

[0019] Figure 4 This is a top view of the detachable base;

[0020] Figure 5 This is a schematic diagram of the sensor fusion unit.

[0021] Figure 6 This is a bottom view of the sensor fusion unit;

[0022] Figure 7 This is a schematic diagram showing the connection relationship between the static level, the tilt sensor, and the wireless transmission module.

[0023] In the diagram: 1-Clamping clamp, 2-Detachable base, 3-Sensor fusion unit, 4-Pipe, 5-First screw, 10-Connecting rod, 11-Side wall clamping block, 12-Top clamping block, 13-Bottom connecting block, 14-Locking screw, 20-Mounting plate, 21-Sliding plate, 22-Second screw, 23-Guide column, 24-Column, 25-Locking nut, 26-Mounting base, 27-First slide groove, 28-Second slide groove, 29-Connecting hole, 241-Magnetic base, 30-Static level, 31-Inclination sensor, 32-Wireless transmission module, 33-Base, 34-Rotating shaft, 35-Pitch adjustment seat, 36-Housing, 37-Probe head, 38-First through hole, 39-Second through hole, 331-Connecting groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0025] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections (i.e., non-detachable connections) include, but are not limited to, conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include, but are not limited to, conventional disassembly methods such as threaded connections, snap-fit ​​connections, pin connections, and hinged connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can always be found to achieve the function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for fixed connections, and a hinged connection can be chosen for detachable connections.

[0026] Example 1, combined with Figures 1-7 This embodiment describes an underground settlement monitoring device, including clamps 1, detachable bases 2, and sensor fusion units 3. Multiple clamps 1 are evenly arranged on a pipe 4, each clamp 1 having a detachable base 2. The sensor fusion unit 3 is mounted on the clamps 1 via the detachable bases 2. The sensor fusion unit 3 includes a hydrostatic level 30, an inclination sensor 31, a wireless transmission module 32, and a housing 36. The hydrostatic level 30, inclination sensor 31, and wireless transmission module 32 are integrated within the housing 36. A probe 37 is mounted on the housing 36, which is mounted on the detachable base 2. The hydrostatic level 30 and inclination sensor 31 are respectively connected to the wireless transmission module 32.

[0027] The length of underground utility tunnels is generally around 10 kilometers. Clamps 1 are evenly distributed along the pipelines within the tunnel. In this embodiment, the spacing between two adjacent clamps 1 is set at 150 meters. The clamps 1 are chain clamps. During installation, the top clamping block 12 is first placed above the pipe 4. After determining the position of the top clamping block 12, the connecting rods 10 at both ends of the top clamping block 12 are adjusted to ensure that the side wall clamping blocks 11 on both sides are tightly attached to the sides of the pipe 4. Then, the bottom connecting blocks 13 connected to the other end of the side wall clamping blocks 11 via the connecting rods 10 are aligned. The locking screw 14 is then passed through the two bottom connecting blocks 13 in sequence. By tightening the locking screw 14, the bottom connecting blocks 13 are brought together towards the center and fixed and clamped onto the pipe 4 by the side wall clamping blocks 11, the top clamping block 12, and the bottom connecting blocks 13.

[0028] Four first screws 5 are provided on the top clamping block 12. The mounting plate 20 of the detachable base 2 has corresponding connecting holes 29. After the connecting holes 29 of the mounting plate 20 pass through the first screws 5, the height of the mounting plate 20 is confirmed, and the nuts on the first screws 5 are tightened so that the nuts are close to the upper and lower sides of the mounting plate 20 to fix the mounting plate 20.

[0029] The bottom of the mounting plate 20 is provided with a column 24. The sliding plate 21 is slidably engaged with the column 24 through the second sliding groove 28, so that the sliding plate 21 can slide laterally at the bottom of the mounting plate 20. The mounting plate 20 is machined with a first sliding groove 27. The column 24 on the sliding plate 21 is slidably disposed in the first sliding groove 27. One end of the column 24 is fixed to the bottom of the sliding plate 21 by a locking nut 25. The other end of the column 24 passes through the sliding plate 21 and the first sliding groove 27 and connects to the magnetic base 241. The bottom of the base 33 of the sensor fusion unit 3 is correspondingly machined with a connecting groove 331. The base 33 is made of a magnetic metal body. When the connecting groove 331 at the bottom of the base 33 is connected to the magnetic base 241, they are magnetically attracted together.

[0030] To improve the control accuracy of the lateral movement of the sliding plate 21, a mounting base 26 is integrally machined on the bottom of the mounting plate 20. The mounting base 26 has a threaded hole for connecting the second screw 22. The second screw 22 is threadedly connected to the threaded hole. The end of the second screw 22 passes through the mounting base 26 and is fixedly connected to the sliding plate 21. Twisting the second screw 22 in the forward or reverse direction can drive the sliding plate 21 to move laterally left or right, thereby driving the sensor fusion unit 3 above the mounting plate 20 to move laterally.

[0031] A rotating shaft 34 is mounted on the base 33 of the sensor fusion unit 3. The pitch adjustment seat 35 is connected to the base 33 via the rotating shaft 34. The outer wall of the housing 36 is hinged to the pitch adjustment seat 35. The housing 36 integrates a hydrostatic level 30, an inclination sensor 31, and a wireless transmission module 32. The hydrostatic level 30 is model HD-SL200 and is used to monitor the settlement of the pipe 4. The inclination sensor 31 is model SMI730 and is also used to monitor the settlement of the pipe 4. The wireless transmission module 32 adopts a dual-mode design, namely LoRa / NB-IoT dual-mode communication. The LoRa module model is RHF0M062, and the NB-IoT model is BC660K-GL. The dual-mode wireless transmission module 32 transmits the data collected by the hydrostatic level 30 and the inclination sensor 31 to the cloud to ensure the real-time performance and accuracy of the transmitted data.

[0032] The front end of the housing 36 is provided with a probe 37 for the detection of the tilt sensor 31. The back of the housing 36 is machined with a first through hole 38 and a second through hole 39. The first through hole 38 is used for the connection of data cables and wires, and the second through hole 39 is used for the connection of other pipelines, such as the hydrostatic level instrument which needs to be connected to a water pipe to inject the medium.

[0033] With the sliding plate 21 driving the sensor fusion unit 3 to move laterally left and right, the rotating shaft 34 on the base 33 can also drive the housing 36 to move axially. The housing 36 is mounted on the pitch adjustment seat 35, allowing the housing 36 to move in pitch. Therefore, it has six degrees of freedom of movement: lateral, axial, and pitch. The sensor fusion unit 3 is easy to install, and the six degrees of freedom of movement allow for quick debugging of the sensor integration inside the housing 36 after installation. The magnetic connection between the base 33 and the magnetic base 241 enables quick assembly and disassembly of the sensor integration. The hydrostatic level 31 and the tilt sensor should be cleaned and maintained every six months.

[0034] This embodiment is merely an exemplary illustration of this application and does not limit its scope of protection. Those skilled in the art can make partial changes to it, as long as they do not exceed the spirit and essence of this application, they are all within the scope of protection of this application.

Claims

1. A subsidence monitoring apparatus characterised in that: The device includes clamps (1), detachable bases (2) and sensor fusion units (3). Multiple clamps (1) are evenly arranged on the pipe (4). Each clamp (1) is equipped with a detachable base (2). The sensor fusion unit (3) is installed on the clamps (1) through the detachable bases (2). The sensor fusion unit (3) includes a hydrostatic level (30), an inclination sensor (31), a wireless transmission module (32) and a housing (36). The hydrostatic level (30), the inclination sensor (31) and the wireless transmission module (32) are integrated in the housing (36). A probe (37) is installed on the housing (36). The housing (36) is installed on the detachable base (2). The hydrostatic level (30) and the inclination sensor (31) are respectively connected to the wireless transmission module (32).

2. The underground settlement monitoring device according to claim 1, characterized in that: The housing (36) is provided with a first through hole (38) and a second through hole (39). The outer wall of the housing (36) is hinged to the pitch adjustment seat (35). The pitch adjustment seat (35) is mounted on the base (33) via a pivot (34). The base (33) is connected to the detachable base (2).

3. The underground settlement monitoring device according to claim 2, characterized in that: The detachable base (2) includes a mounting plate (20), a sliding plate (21), a column (24), and a magnetic base (241). A guide column (23) is provided at the bottom of the mounting plate (20). The sliding plate (21) is slidably mounted on the bottom of the mounting plate (20) through the guide column (23). A second groove (28) is machined on the sliding plate (21). The guide column (23) is connected to the second groove (28). A first groove (27) is machined on the mounting plate (20). One end of the column (24) is mounted on the sliding plate (21) and fastened by a locking nut (25). The other end of the column (24) passes through the sliding plate (21) and the first groove (27) and is connected to the magnetic base (241). A connecting groove (331) is correspondingly machined at the bottom of the base (33). The base (33) is connected to the magnetic base (241) through the connecting groove (331).

4. The underground settlement monitoring device according to claim 3, characterized in that: The bottom of the mounting plate (20) is provided with a mounting base (26), which is integrally formed with the mounting plate (20). The mounting base (26) has a threaded hole, and the second screw (22) is connected to the mounting base (26) through the threaded hole. The second screw (22) passes through the mounting base (26) and is fixedly connected to the sliding plate (21).

5. A ground subsidence monitoring device according to claim 3 or 4, characterized in that: The mounting plate (20) has a connecting hole (29) and a first screw (5) is installed on the clamp (1). The first screw (5) passes through the connecting hole (29) of the mounting plate (20) to fix the mounting plate (20) on the clamp (1).

6. The underground settlement monitoring device according to claim 1, characterized in that: The clamp (1) is a chain clamp. The clamp (1) includes a connecting rod (10), a side wall clamping block (11), a top clamping block (12), a bottom connecting block (13), and a locking screw (14). The two side wall clamping blocks (11) are symmetrically arranged on both sides of the pipe (4). One end of the side wall clamping block (11) is connected to the top clamping block (12) through the connecting rod (10), and the other end of the side wall clamping block (11) is connected to the bottom connecting block (13) through the connecting rod (10). The two bottom connecting blocks (13) are connected and locked by the locking screw (14).

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