Deformation monitoring device for electric power tunnel

Abstract

The utility model discloses a deformation monitoring device for an electric power tunnel, which comprises a plurality of monitoring units, each monitoring unit comprises a shell, a target is fixedly mounted at the bottom of the shell through a support, a cylinder is rotatably mounted at the bottom of the shell, and the top end of the cylinder is positioned in the shell and is provided with a first worm gear; a first worm matched with the first worm gear is rotationally installed in the shell, first rotary knobs are installed at the two ends of the first worm, a U-shaped plate is installed at the bottom end of the cylinder, a rotating column is arranged on the inner side of the U-shaped plate, a laser transmitter is installed at the front end of the rotating column, and rotating shafts which are in bilateral symmetry are installed on the two sides of the rotating column. The rotating column is rotationally mounted on the U-shaped plate through a rotating shaft; according to the deformation monitoring device for the electric power tunnel, the plurality of monitoring units are arranged to be matched, the laser emitted by the next monitoring unit irradiates the center of the target of the previous monitoring unit, a monitoring chain can be formed, and real-time monitoring of tunnel deformation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power tunnel monitoring technology, specifically a deformation monitoring device for power tunnels. Background Technology

[0002] During the construction and operation of power tunnels, due to complex geological conditions, changes in the surrounding environment, and the aging of the tunnel's own structure, the tunnel may experience varying degrees of deformation, such as settlement, displacement, and tilting. If these deformations are not detected and addressed in a timely manner, they may cause damage to the tunnel structure, and in severe cases, even lead to safety accidents such as damage to power facilities and power outages, posing a serious threat to the stable operation of the power system.

[0003] Currently, deformation monitoring of power tunnels mainly adopts traditional contact measurement methods, such as using level instruments, total stations and other equipment for periodic manual measurement. However, these methods require a lot of manpower, material resources and time, and the measurement cycle is long, making it difficult to achieve real-time monitoring of tunnel deformation.

[0004] Therefore, we have designed a deformation monitoring device for power tunnels to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a deformation monitoring device for power tunnels, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deformation monitoring device for power tunnels, comprising multiple monitoring units. Each monitoring unit includes a housing, a target fixedly mounted on the bottom of the housing via a bracket, a cylinder rotatably mounted on the bottom of the housing, a first worm gear mounted on the top of the cylinder inside the housing, a first worm cooperating with the first worm gear rotatably mounted inside the housing, a first knob mounted on both ends of the first worm gear, a U-shaped plate mounted on the bottom of the cylinder, a rotating column arranged on the inner side of the U-shaped plate, a laser emitter mounted on the front end of the rotating column, symmetrical rotating shafts mounted on both sides of the rotating column, the rotating column rotatably mounted on the U-shaped plate via the rotating shafts, a second worm gear mounted on the rotating shaft on one side of the rotating column, a cover mounted on the outer side of the U-shaped plate, the second worm gear located inside the cover, a second worm cooperating with the second worm gear rotatably mounted inside the cover, and a second knob mounted on the lower end of the second worm gear.

[0007] Preferably, the output end of the laser emitter is positioned facing forward, and the target is located behind the laser emitter with its surface facing backward.

[0008] Preferably, the left and right sides of the housing are provided with mounting plates integrally formed with the housing, and the mounting plates are provided with mounting holes.

[0009] Preferably, multiple monitoring units are installed at equal intervals on the inner wall or bottom of the tunnel, and the laser emitted from the laser emitter of the next monitoring unit shines on the target of the previous monitoring unit.

[0010] Preferably, a laser receiver is installed at the center of the target, and an alarm light and a controller for controlling the switch of the alarm light are installed on the housing. The laser receiver is electrically connected to the controller.

[0011] Compared with the prior art, this utility model provides a deformation monitoring device for power tunnels, which has the following beneficial effects:

[0012] This deformation monitoring device for power tunnels uses multiple monitoring units to work together. The laser emitted by each monitoring unit illuminates the center of the target of the previous monitoring unit, forming a monitoring chain. This enables real-time monitoring of tunnel deformation. By observing whether the position of the laser point on the target has shifted, it is possible to quickly determine whether the tunnel is deformed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the monitoring unit structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shell and cover of this utility model;

[0015] Figure 3 This is a schematic diagram showing the distribution of the monitoring units of this utility model.

[0016] Reference numerals: 1. Monitoring unit; 2. Housing; 3. Cylinder; 4. First worm gear; 5. First worm; 6. First knob; 7. U-shaped plate; 8. Rotating column; 9. Laser emitter; 10. Rotating shaft; 11. Second worm gear; 12. Cover; 13. Second worm; 14. Second knob; 15. Target; 16. Laser receiver; 17. Alarm light; 18. Controller; 19. Mounting plate; 20. Tunnel. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-3In this embodiment: a deformation monitoring device for power tunnels includes multiple monitoring units 1. Each monitoring unit 1 includes a housing 2. A target 15 is fixedly installed at the bottom of the housing 2 via a bracket. A cylinder 3 is rotatably installed at the bottom of the housing 2. A first worm gear 4 is installed at the top of the cylinder 3 inside the housing 2. A first worm 5 that cooperates with the first worm gear 4 is rotatably installed inside the housing 2. A first knob 6 is installed at both ends of the first worm 5. A U-shaped plate 7 is installed at the bottom of the cylinder 3. A rotating column 8 is provided on the inner side of the U-shaped plate 7. A laser emitter 9 is installed at the front end of the rotating column 8. Rotating shafts 10 are installed on both sides of the rotating column 8. The rotating column 8 is rotatably installed on the U-shaped plate 7 via the rotating shafts 10. A second worm gear 11 is installed on the rotating shaft 10 on one side of the rotating column 8. A cover 12 is installed on the outer side of the U-shaped plate 7. The second worm gear 11 is located inside the cover 12. A second worm 13 that cooperates with the second worm gear 11 is rotatably installed inside the cover 12. A second knob 14 is installed at the lower end of the second worm 13.

[0019] Example 1: The deformation monitoring device for power tunnels provided by this utility model consists of multiple monitoring units 1. The mounting plates 19 integrally formed on the left and right sides of the housing 2 of the monitoring unit 1 are fixed to the side wall or bottom of the tunnel 20 by bolts. The bottom of the housing 2 is fixed to the target 15 by a bracket. The target 15 faces backward to receive laser light. The circumferential positioning of the cylinder 3 is achieved by the meshing transmission of the first worm gear 5 and the first worm wheel 4 inside the housing 2. The operator can adjust the angle of the cylinder 3 by rotating the first knob 6. The rotating column 8 is rotatably mounted on the inner side of the U-shaped plate 7 at the bottom of the cylinder 3 by a rotating shaft 10. The front end of the rotating column 8 is provided with The laser emitter 9 emits a laser beam forward from its output end. The second worm gear 11 on the rotating shaft 10 on one side of the rotating column 8 meshes with the second worm 13 inside the cover 12. Rotating the second knob 14 drives the rotating column 8 to rotate up and down. By rotating the first knob 6 and the second knob 14, the irradiation angle of the laser emitter 9 can be adjusted arbitrarily, so that the laser beam is accurately aimed at the center of the target 15 of the front monitoring unit 1. When the tunnel 20 is deformed, the laser beam will deviate from the center of the target 15. Workers can directly observe whether the position of the laser point on the target 15 has shifted, thereby judging whether the tunnel 20 has deformed.

[0020] Example 2: Based on Example 1, the structure of monitoring unit 1 is further optimized. A laser receiver 16 is installed in the center of the target 15 of monitoring unit 1, and an alarm light 17 and a controller 18 are installed on the housing 2 of monitoring unit 1. During the use of the device, when the laser receiver 16 in the center of the target 15 does not receive laser light, the laser receiver 16 transmits the signal to the controller 18, and the controller 18 triggers the audible and visual alarm of the alarm light 17, thereby realizing the power tunnel deformation alarm.

[0021] Example 3: Multiple monitoring units 1 are installed at equal intervals along the longitudinal direction on the top of tunnel 20 to form a chain monitoring network. The laser beam emitted by the laser emitter 9 of the next monitoring unit 1 illuminates the center of the target 15 of the previous monitoring unit 1, thereby constructing a power tunnel deformation monitoring chain. When a section of tunnel 20 deforms, the position of the monitoring unit 1 at the deformed point will change, and the illumination angle of its laser emitter 9 will change, causing the laser beam illuminating the center of the target 15 of the previous monitoring unit 1 to shift, thereby triggering an alarm.

[0022] Example 4: For tunnel 20 with complex geological conditions, a layered monitoring scheme is adopted. Multiple monitoring units 1 are installed at equal intervals along the longitudinal direction at the top, sidewalls and bottom of the tunnel. When the tunnel undergoes uneven deformation, the laser deflection at different positions can reflect the direction of deformation. For example, the settlement of the top of tunnel 20 will cause the laser beam of the monitoring unit 1 at the top to deflect, and the displacement of the sidewalls of tunnel 20 will cause the laser beam of the monitoring unit 1 on the sidewalls to deflect.

[0023] Operating Procedure: Before use, install multiple monitoring units 1 at equal intervals along the longitudinal direction on the top of tunnel 20. Then, adjust the irradiation angle of the laser emitter 9 by rotating the first knob 6 and the second knob 14 so that the laser beam of each monitoring unit 1 shines on the center of the target 15 of the previous monitoring unit 1. During use, when a section of the power tunnel deforms, the monitoring unit 1 on that section of tunnel 20 will change position due to the deformation of tunnel 20, causing the position or irradiation angle of its laser beam to change. This will cause the laser point on the target 15 of the previous monitoring unit 1 to shift. Workers can quickly determine whether tunnel 20 has deformed by observing the position of the laser point on the target 15 of the monitoring unit 1, and thus take timely action.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A deformation monitoring device for power tunnels, comprising multiple monitoring units (1), characterized in that: The monitoring unit (1) includes a housing (2). A target (15) is fixedly installed at the bottom of the housing (2) by a bracket. A cylinder (3) is rotatably installed at the bottom of the housing (2). The top of the cylinder (3) is located inside the housing (2) and a first worm gear (4) is installed thereon. A first worm (5) that cooperates with the first worm gear (4) is rotatably installed inside the housing (2). A first knob (6) is installed at both ends of the first worm (5). A U-shaped plate (7) is installed at the bottom of the cylinder (3). A rotating column (8) is provided on the inner side of the U-shaped plate (7). The front end of the rotating column (8) is installed with... The rotating column (8) is equipped with a laser emitter (9). Symmetrical rotating shafts (10) are installed on both sides of the rotating column (8). The rotating column (8) is rotatably mounted on the U-shaped plate (7) via the rotating shafts (10). A second worm gear (11) is installed on the rotating shaft (10) on one side of the rotating column (8). A cover (12) is installed on the outside of the U-shaped plate (7). The second worm gear (11) is located inside the cover (12). A second worm (13) that cooperates with the second worm gear (11) is rotatably installed inside the cover (12). A second knob (14) is installed at the lower end of the second worm (13).

2. The deformation monitoring device for power tunnels according to claim 1, characterized in that: The output end of the laser emitter (9) is positioned facing forward, and the target (15) is located behind the laser emitter (9), with the target (15) facing backward.

3. The deformation monitoring device for power tunnels according to claim 1, characterized in that: The left and right sides of the housing (2) are provided with mounting plates (19) integrally formed with the housing (2), and mounting holes are reserved on the mounting plates (19).

4. A deformation monitoring device for power tunnels according to claim 1, characterized in that: Multiple monitoring units (1) are installed at equal intervals on the inner wall or bottom of the tunnel (20), and the laser emitted from the output end of the laser emitter (9) of the latter monitoring unit (1) shines on the target (15) of the former monitoring unit (1).

5. A deformation monitoring device for power tunnels according to claim 1, characterized in that: A laser receiver (16) is installed at the center of the target (15), and an alarm light (17) and a controller (18) for controlling the switch of the alarm light (17) are installed on the housing (2). The laser receiver (16) and the controller (18) are electrically connected.

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