A visual range monitoring and early warning device for tunnel safety

Abstract

The utility model relates to tunnel safety technical field, and disclose a kind of line-of-sight monitoring early warning device for tunnel safety, including target board body, the rear end of target board body is fixedly connected with adjusting assembly, the surface of adjusting assembly is fixedly connected with mounting plate, adjusting assembly includes installation platform one, the inner wall top of installation platform one is fixedly connected with fixed column one, the surface of fixed column one is rotatably connected with movable sleeve, the surface of movable sleeve is fixedly connected with connecting frame, the inside of connecting frame is installed with threaded sleeve, the inside screw thread connection of threaded sleeve has threaded rod, the front end of threaded rod is fixedly connected with fixed sleeve. The utility model is by fixed column one, movable sleeve, threaded sleeve, threaded rod, fixed sleeve, fixed column two, installation platform two, sliding block and slide rail component adjusting assembly setting, the rotation of threaded rod is converted into the swing of target board around fixed column one, realizes the accurate alignment to curved horizontal line of sight.

Description

Technical Field

[0001] This utility model relates to the field of tunnel safety technology, specifically a line-of-sight monitoring and early warning device for tunnel safety. Background Technology

[0002] Tunnels are underground passages formed by artificial excavation or shield tunneling, passing through mountains, water bodies, or urban structures, and are used for highways, railways, subways, water conservancy projects, and pipelines. Their structure includes lining, support, drainage, and ventilation systems, and they are classified by construction methods such as drill-and-blast, shield tunneling, and immersed tunneling. Modern tunnels employ composite lining, grouting reinforcement, and intelligent monitoring to ensure the stability of the surrounding rock and operational safety. Long tunnels often have vertical shafts, inclined shafts, and jet fans to ensure ventilation and smoke extraction. They are equipped with complete lighting, fire protection, and emergency communication systems, and can withstand earthquakes, fires, and floods. Tunnels shorten travel distances, protect surface ecology, and are core engineering projects for mountainous areas, cross-river and cross-sea transportation, and urban multimodal transport.

[0003] As a closed linear structure, the stopping visibility distance in the curve section of the tunnel is significantly shortened due to the obstruction of the side walls, which drastically reduces the time for drivers to recognize obstacles ahead, making rear-end collisions highly likely. Therefore, it is necessary to set up a visibility target that can be adjusted according to the curve at the starting section of the curve to provide real-time safety distance indication. The existing fixed targets cannot adjust their horizontal angle according to the changes in the tunnel's horizontal curve, causing the driver's line of sight to be misaligned with the target in the curve, and the visibility indication to fail. At the same time, the failure of the lights requires the entire unit to be disassembled and reassembled, resulting in a long maintenance closure time. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a tunnel safety line-of-sight monitoring and early warning device, including a target sign body, an adjustment component fixedly connected to the rear end of the target sign body, and a mounting plate fixedly connected to the surface of the adjustment component;

[0005] The adjustment assembly includes a mounting platform 1, a fixed column 1 fixedly connected to the top of the inner wall of the mounting platform 1, a movable sleeve rotatably connected to the surface of the fixed column 1, a connecting frame fixedly connected to the surface of the movable sleeve, a threaded sleeve installed inside the connecting frame, a threaded rod threadedly connected inside the threaded sleeve, a fixed sleeve fixedly connected to the front end of the threaded rod, a fixed column 2 rotatably connected to the inside of the fixed sleeve, a mounting platform 2 fixedly connected to the top of the fixed column 2, a slider fixedly connected to the rear end of the mounting platform 2, and a slide rail slidably connected to the surface of the slider.

[0006] Through the above technical solution, by setting up a linkage mechanism consisting of mounting platform one, fixed column one, movable sleeve, connecting frame, threaded sleeve, threaded rod, fixed sleeve, fixed column two, mounting platform two, slider and slide rail, the linear displacement of the threaded rod is converted into the horizontal swing of the target sign around the vertical axis, realizing stepless angle adjustment of the sight distance target at the curve, ensuring that the driver is always facing the bright sight sign, thereby improving driving safety in the curve area of ​​the tunnel.

[0007] As a further improvement to the above solution, a mounting plate is fixedly connected to the end of the connecting frame that is away from the mounting platform.

[0008] Through the above technical solution, the connecting frame is directly extended into the mounting plate, so that the mounting plate and the adjustment component form an integrated structure, which reduces the number of parts and assembly errors, and improves the overall rigidity.

[0009] As a further improvement to the above solution, the threaded rod passes through the connecting frame, and the upper and lower ends of the second fixed column pass through the fixed sleeve.

[0010] With the above technical solution, the threaded rod passes through the connecting frame and the two ends of the fixed column protrude through the fixed sleeve, ensuring that the axial and radial loads are borne by the connecting frame and the fixed sleeve, thus improving the stability and durability of the adjustment process.

[0011] As a further improvement to the above solution, the end of the slide rail away from the slider is fixedly connected to the rear end of the target body.

[0012] With the above technical solution, the slide rail is fixed to the rear end of the target, so that the guiding direction of the slider-slide rail pair is consistent with the swing direction of the target, eliminating unnecessary constraints and ensuring smooth and accurate angle adjustment.

[0013] As a further improvement to the above solution, the top of the target plate body is provided with a mounting groove, a magnetic strip is fixedly connected inside the mounting groove, a magnetic plate is glued to the top of the magnetic strip, a light strip is fixedly connected to the bottom of the magnetic plate, and a wiring groove is provided at the left end of the target plate body.

[0014] The above technical solution allows for the installation of a magnetic strip embedded in the slot, which attracts the magnetic plate with the light strip. At the same time, a cable tray is opened at the left end, which not only enables the quick installation and removal of the light strip without screws, but also avoids damage to exposed cables.

[0015] As a further improvement to the above solution, two mounting slots are provided, and the two mounting slots are evenly distributed symmetrically around the center of the front of the target body.

[0016] With the above technical solution, the two mounting slots are arranged symmetrically with the front center, which makes the light distribution of the light strip uniform, avoids bright spots on one side, and improves the visibility and recognition of the target.

[0017] As a further improvement to the above solution, the bottom of the light strip is located inside the target plate body.

[0018] Through the above technical solution, the bottom of the light strip is sunk into the target sign, and the main body structure forms a light shield to reduce lateral glare and further enhance the visual effect in the tunnel curve environment.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This utility model, by setting an adjustment assembly consisting of a fixed column one, a movable sleeve, a threaded sleeve, a threaded rod, a fixed sleeve, a fixed column two, a mounting platform two, a slider and a slide rail, converts the rotational motion of the threaded rod into the swing of the target plate around the fixed column one, thereby achieving precise alignment of the horizontal line of sight on the curve.

[0021] This invention features an installation groove that allows for detachable connection between the magnetic strip and the magnetic plate, and integrates a light strip at the bottom of the magnetic plate. This enables quick replacement of the light strip without tools when it malfunctions, significantly reducing maintenance workload and shortening tunnel closure time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall rear-end structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the overall disassembled structure of the adjustment component of this utility model;

[0026] Figure 5 This is a schematic diagram of the overall disassembled structure of the target body of this utility model.

[0027] In the diagram: 1. Target body; 2. Adjustment assembly; 21. Mounting platform one; 22. Fixed column one; 23. Movable sleeve; 24. Connecting frame; 25. Threaded sleeve; 26. Threaded rod; 27. Fixed sleeve; 28. Fixed column two; 29. ​​Mounting platform two; 210. Slider; 211. Slide rail; 3. Mounting plate; 4. Mounting groove; 5. Magnetic strip; 6. Magnetic plate; 7. Light strip; 8. Cable tray. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1-5 The tunnel safety line-of-sight monitoring and early warning device of this embodiment includes a target sign body 1, an adjustment component 2 is fixedly connected to the rear end of the target sign body 1, and an installation plate 3 is fixedly connected to the surface of the adjustment component 2.

[0031] Adjustment assembly 2 includes mounting platform 21. A fixed post 22 is fixedly connected to the top of the inner wall of mounting platform 21. A movable sleeve 23 is rotatably connected to the surface of fixed post 22. A connecting frame 24 is fixedly connected to the surface of movable sleeve 23. A threaded sleeve 25 is installed inside the connecting frame 24. A threaded rod 26 is threadedly connected inside the threaded sleeve 25. A fixed sleeve 27 is fixedly connected to the front end of the threaded rod 26. A fixed post 28 is rotatably connected inside the fixed sleeve 27. A mounting platform 29 is fixedly connected to the top of fixed post 28. A slider is fixedly connected to the rear end of mounting platform 29. 210, the surface of the slider 210 is slidably connected to the slide rail 211. The adjustment component 2, which is fixed to the tunnel wall by the mounting plate 3, starts to work. Tightening the threaded rod 26 causes it to move horizontally within the threaded sleeve 25, pushing the fixed sleeve 27 and the second fixed column 28 to move forward or backward synchronously. The second fixed column 28 drives the second mounting platform 29 to slide laterally within the slide rail 211. The slide rail 211 is fixedly connected to the back of the target body 1. Thus, the target body 1 swings left and right around the vertical axis under the joint constraint of the movable sleeve 23 and the first fixed column 22, realizing continuous stepless adjustment of the horizontal angle.

[0032] The end of the connecting bracket 24 furthest from the mounting platform 21 is fixedly connected to the mounting plate 3.

[0033] The threaded rod 26 passes through the connecting frame 24, and the upper and lower ends of the fixing column 28 pass through the fixing sleeve 27.

[0034] The end of the slide rail 211 away from the slider 210 is fixedly connected to the rear end of the target body 1.

[0035] The target body 1 has a mounting groove 4 on its top. A magnetic strip 5 is fixedly connected inside the mounting groove 4. A magnetic plate 6 is glued to the top of the magnetic strip 5. A light strip 7 is fixedly connected to the bottom of the magnetic plate 6. A cable tray 8 is provided on the left end of the target body 1.

[0036] There are two mounting slots 4, which are symmetrically and evenly distributed around the center of the front of the target body 1.

[0037] The bottom of the light strip 7 is located inside the target body 1.

[0038] The implementation principle of the tunnel safety sight distance monitoring and early warning device in this application embodiment is as follows: when the tunnel curves and the lateral deflection angle of the target sign body 1 needs to be adjusted, the adjustment component 2 fixed to the tunnel wall by the mounting plate 3 starts to work. The threaded rod 26 is turned, which generates a horizontal displacement in the threaded sleeve 25, pushing the fixed sleeve 27 and the second fixed column 28 to move forward or backward synchronously. The second fixed column 28 drives the second mounting platform 29 to slide laterally in the slide rail 211, and the slide rail 211 is fixedly connected to the back of the target sign body 1. Thus, the target sign body 1 swings left and right around the vertical axis under the joint constraint of the movable sleeve 23 and the first fixed column 22, realizing continuous stepless adjustment of the horizontal angle, so that the driver in the curve is always facing the bright target.

[0039] After adjustment, the light strip 7 is powered on, and the high-brightness visual target forms a clear contrast in the tunnel. When the driver observes the visual target at the entrance or in front of the curve, if he finds that it is blocked by an obstacle or the brightness is reduced, he can judge that the visibility distance is insufficient and slow down in advance. The light strip 7 is attached to the mounting groove 4 on the top of the target sign body 1 by the magnetic strip 5 and the magnetic plate 6. It can be removed and replaced without tools during maintenance.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A line-of-sight monitoring and early warning device for tunnel safety, characterized in that: Includes a target body (1), an adjustment component (2) is fixedly connected to the rear end of the target body (1), and a mounting plate (3) is fixedly connected to the surface of the adjustment component (2); The adjustment assembly (2) includes a mounting platform (21), a fixed column (22) is fixedly connected to the top of the inner wall of the mounting platform (21), a movable sleeve (23) is rotatably connected to the surface of the fixed column (22), a connecting frame (24) is fixedly connected to the surface of the movable sleeve (23), a threaded sleeve (25) is installed inside the connecting frame (24), a threaded rod (26) is threadedly connected inside the threaded sleeve (25), a fixed sleeve (27) is fixedly connected to the front end of the threaded rod (26), a fixed column (28) is rotatably connected inside the fixed sleeve (27), a mounting platform (29) is fixedly connected to the top of the fixed column (28), a slider (210) is fixedly connected to the rear end of the mounting platform (29), and a slide rail (211) is slidably connected to the surface of the slider (210).

2. The tunnel safety line-of-sight monitoring and early warning device according to claim 1, characterized in that: The end of the connecting frame (24) away from the mounting platform (21) is fixedly connected to the mounting plate (3).

3. The tunnel safety line-of-sight monitoring and early warning device according to claim 1, characterized in that: The threaded rod (26) passes through the connecting frame (24), and the upper and lower ends of the fixed column (28) pass through the fixed sleeve (27).

4. The tunnel safety line-of-sight monitoring and early warning device according to claim 1, characterized in that: The end of the slide rail (211) away from the slider (210) is fixedly connected to the rear end of the target body (1).

5. The tunnel safety line-of-sight monitoring and early warning device according to claim 1, characterized in that: The target body (1) has an installation groove (4) on its top. A magnetic strip (5) is fixedly connected inside the installation groove (4). A magnetic plate (6) is attached to the top of the magnetic strip (5). A light strip (7) is fixedly connected to the bottom of the magnetic plate (6). A wiring groove (8) is provided at the left end of the target body (1).

6. A tunnel safety line-of-sight monitoring and early warning device according to claim 5, characterized in that: The number of the mounting slots (4) is set to two, and the two mounting slots (4) are evenly distributed symmetrically around the front center of the target body (1).

7. A tunnel safety line-of-sight monitoring and early warning device according to claim 5, characterized in that: The bottom of the light strip (7) is located inside the target body (1).

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