Roadway roof surrounding rock displacement monitoring and early warning device
By riveting multiple sets of anchor bolts and connecting plates onto the tunnel roof, and using suspension ropes and trigger ball assemblies to achieve real-time monitoring and early warning of multiple positions, the problem of not being able to monitor multiple positions simultaneously in existing technologies is solved, thus improving the accuracy and coverage of monitoring.
Patent Information
- Application Number
- CN202520868000.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-06
AI Technical Summary
In the existing technology, the existing technology cannot simultaneously monitor and warn of multiple locations, and the existing technology cannot achieve monitoring and early warning of multiple locations.
Design a roadway roof surrounding rock displacement monitoring and early warning device. Four sets of anchor bolts are riveted to different positions on the roadway roof. Using components such as suspension ropes, connecting discs, weight blocks and trigger balls, real-time monitoring of multiple positions can be achieved. The trigger ball rolls along the moving groove under the action of gravity, triggering the limit switch to feed back data to the monitor and illuminating the alarm light to issue an early warning.
It enables real-time and accurate displacement monitoring and early warning of multiple locations of the surrounding rock in the roadway roof, improving the accuracy and coverage of monitoring.
Smart Images
Figure CN223938123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel roof surrounding rock displacement monitoring technology, and in particular to a tunnel roof surrounding rock displacement monitoring and early warning device. Background Technology
[0002] The surrounding rock of the tunnel roof is the directly exposed rock mass in mine tunnel engineering, and its stability directly affects the safety of underground operations. It is mainly composed of sedimentary, metamorphic, or igneous rocks, and is affected by geological structures, mining stress, and hydrological conditions. Common failure modes include delamination, collapse, and spalling, which require prevention and control through displacement monitoring and early warning devices.
[0003] Existing displacement monitoring and early warning devices can only monitor and warn of a single location during use, and cannot monitor and warn of multiple locations. Therefore, this utility model proposes a displacement monitoring and early warning device for the surrounding rock of the roadway roof. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a roadway roof surrounding rock displacement monitoring and early warning device, which solves the problems mentioned in the background technology.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a roadway roof surrounding rock displacement monitoring and early warning device, including a connecting plate and a monitor, wherein a connecting seat is provided at the corner of the connecting plate, a suspension rope is provided at one end of the connecting seat, and an anchor rod is connected to one end of the suspension rope;
[0006] The upper end of the connecting plate is provided with a moving groove, the inside of the moving groove is provided with a placement groove and a positioning groove, the connection between the moving groove and the placement groove is provided with a transition slope one, the inside of the placement groove is provided with an installation groove, the inside of the installation groove is provided with a limit switch, the detection end of the limit switch is connected to a trigger plate, one side of the trigger plate is provided with a transition slope two, and the inside of the positioning groove is provided with a trigger ball.
[0007] As a further technical solution of this utility model, the connecting plate and the connecting seat are fixedly connected, the number of the connecting seats is four sets and they are arranged in an array, the hoisting rope is fixedly connected to the connecting seat and the anchor rod, and the anchor rod is riveted to the top of the surrounding rock of the roadway roof.
[0008] As a further technical solution of this utility model, a weight block is fixedly connected to the bottom of the connecting plate near the lower part of the connecting seat, and the weight block consists of four sets arranged in an array.
[0009] As a further technical solution of this utility model, the inside of the movable slot is adapted to be connected to a cover plate, the cover plate is made of acrylic board and has a transparent structure, the number of the placement slots is four sets and they are arranged in an array, and the transition slope is a sloping structure.
[0010] As a further technical solution of this utility model, the number of the mounting slots is four sets and they are arranged in an array. The limit switch is fixedly connected to the mounting slot and electrically connected to the monitor. The monitor is provided with an alarm light, a display screen and control buttons on its outside.
[0011] As a further technical solution of this utility model, the detection end of the limit switch is fixedly connected to the trigger plate, the transition slope is an arc-shaped structure, and the positioning groove and the moving groove are connected and adapted to the trigger ball.
[0012] This utility model provides a device for monitoring and early warning of displacement of the surrounding rock in a roadway roof. Compared with the prior art, it has the following advantages:
[0013] This design discloses a displacement monitoring and early warning device for the surrounding rock of a roadway roof. Four sets of anchor bolts are riveted to different positions on the roadway roof. When the corresponding suspension rope settles, the tension on the connecting plate is reduced. At the same time, the trigger ball, under gravity, detaches from the positioning groove and rolls along the moving groove. Accelerated by the first transition slope, it rolls along the second transition slope to the top of the trigger plate, causing the trigger plate to press against the limit switch. The data is fed back to the monitor, illuminating the alarm light, thus enabling real-time displacement early warning monitoring with high accuracy. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of a tunnel roof surrounding rock displacement monitoring and early warning device;
[0015] Figure 2 Another perspective view of a tunnel roof surrounding rock displacement monitoring and early warning device;
[0016] Figure 3 A partially exploded view of a tunnel roof surrounding rock displacement monitoring and early warning device;
[0017] Figure 4 This is a partial side sectional view of a roadway roof surrounding rock displacement monitoring and early warning device.
[0018] In the diagram: 1. Connecting plate; 2. Connecting seat; 3. Lifting rope; 4. Anchor rod; 5. Weight block; 6. Cover plate; 7. Moving groove; 8. Placement groove; 9. Transition slope one; 10. Installation groove; 11. Limit switch; 12. Trigger plate; 13. Transition slope two; 14. Positioning groove; 15. Trigger ball; 16. Monitor; 17. Alarm light; 18. Display screen; 19. Control button. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution for a roadway roof rock displacement monitoring and early warning device: a roadway roof rock displacement monitoring and early warning device, including a connecting plate 1 and a monitor 16, a connecting seat 2 is provided at the corner of the connecting plate 1, a suspension rope 3 is provided at one end of the connecting seat 2, and an anchor rod 4 is connected to one end of the suspension rope 3.
[0021] The upper end of the connecting plate 1 is provided with a moving groove 7. The moving groove 7 is provided with a placement groove 8 and a positioning groove 14. A transition slope 9 is provided at the connection between the moving groove 7 and the placement groove 8. The placement groove 8 is provided with an installation groove 10. A limit switch 11 is provided inside the installation groove 10. The detection end of the limit switch 11 is connected to a trigger plate 12. A transition slope 13 is provided on one side of the trigger plate 12. A trigger ball 15 is provided inside the positioning groove 14.
[0022] like Figure 1-2 As shown, the connecting plate 1 and the connecting seat 2 are fixedly connected. There are four sets of connecting seats 2 arranged in an array. The hoisting rope 3 is fixedly connected to both the connecting seat 2 and the anchor rod 4. The anchor rod 4 is riveted to the top of the roadway roof and surrounding rock. This facilitates the riveting of multiple sets of anchor rods 4 to different positions of the roadway roof and surrounding rock, so that real-time monitoring can be carried out after settlement displacement occurs at one position.
[0023] like Figure 1-2 As shown, a weight block 5 is fixedly connected to the bottom of the connecting plate 1 near the lower part of the connecting seat 2. There are four sets of weight blocks 5 arranged in an array to increase the weight of the suspension rope 3 at different positions. After sinking, the connecting plate 1 can be moved to offset, thereby triggering an early warning.
[0024] like Figure 2-4 As shown, the inside of the moving groove 7 is fitted with a cover plate 6. The cover plate 6 is made of acrylic board and has a transparent structure. There are four sets of placement grooves 8 arranged in an array. The transition slope 9 is a ramp structure, which facilitates the positioning groove 14 to accelerate as it falls into the placement groove 8 along the moving groove 7, and can smoothly roll onto the upper end of the trigger plate 12.
[0025] like Figure 1-2As shown, there are four sets of mounting slots 10 arranged in an array. The limit switch 11 is fixedly connected to the mounting slot 10 and electrically connected to the monitor 16. The monitor 16 is equipped with an alarm light 17, a display screen 18, and a control button 19 on its outer side. The detection end of the limit switch 11 is fixedly connected to the trigger plate 12. The transition slope 13 is an arc-shaped structure. The positioning slot 14 is connected to the moving slot 7 and is adapted to the trigger ball 15. This facilitates the detection by the limit switch 11 when the trigger ball 15 triggers the trigger plate 12, and the feedback is sent to the monitor 16, where the alarm light 17 flashes to provide a warning.
[0026] The working principle of this utility model is as follows: During the use of the early warning device, four sets of anchor rods 4 are riveted to different positions on the roof of the roadway. Then, the connecting plate 1 is placed in a horizontal state. When a settlement displacement occurs at one of the positions, the corresponding hoisting rope 3 descends, reducing the tension on the connecting plate 1. At the same time, under the counterweight of the weight block 5, the connecting plate 1 shifts position. Simultaneously, the trigger ball 15, under gravity, leaves the interior of the positioning groove 14 and rolls along the moving groove 7. With the acceleration of the first transition slope 9, it rolls along the second transition slope 13 to the upper end of the trigger plate 12, causing the trigger plate 12 to be pressed against the limit switch 11. The data is fed back to the monitor 16, illuminating the alarm light 17, thereby performing real-time displacement early warning monitoring with high accuracy.
[0027] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A device for monitoring and early warning of displacement of the surrounding rock of a roadway roof, characterized in that, It includes a connecting plate (1) and a monitor (16). A connecting seat (2) is provided at the corner of the connecting plate (1). A lifting rope (3) is provided at one end of the connecting seat (2). An anchor rod (4) is connected to one end of the lifting rope (3). The upper end of the connecting plate (1) is provided with a moving groove (7), and the inside of the moving groove (7) is provided with a placement groove (8) and a positioning groove (14). A transition slope (9) is provided at the connection between the moving groove (7) and the placement groove (8). An installation groove (10) is provided inside the placement groove (8). A limit switch (11) is provided inside the installation groove (10). A trigger plate (12) is connected to the detection end of the limit switch (11). A transition slope (13) is provided on one side of the trigger plate (12). A trigger ball (15) is provided inside the positioning groove (14).
2. The tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, characterized in that, The connecting plate (1) and the connecting seat (2) are fixedly connected. There are four sets of connecting seats (2) arranged in an array. The hoisting rope (3) is fixedly connected to the connecting seat (2) and the anchor rod (4). The anchor rod (4) is riveted to the top of the surrounding rock of the roadway roof.
3. The tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, characterized in that, The bottom of the connecting plate (1) is fixedly connected to a weight block (5) near the bottom of the connecting seat (2). The weight block (5) consists of four groups arranged in an array.
4. The tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, characterized in that, The movable slot (7) is internally fitted with a cover plate (6), which is made of acrylic board and has a transparent structure. The number of placement slots (8) is four and they are arranged in an array. The transition slope (9) is a sloping structure.
5. The tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, characterized in that, The number of mounting slots (10) is four and they are arranged in an array. The limit switch (11) is fixedly connected to the mounting slot (10). The limit switch (11) is electrically connected to the monitor (16). The monitor (16) is equipped with an alarm light (17), a display screen (18) and a control button (19) on its outside.
6. The tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, characterized in that, The detection end of the limit switch (11) is fixedly connected to the trigger plate (12), the transition slope (13) is an arc-shaped structure, and the positioning groove (14) is connected to the moving groove (7) and is adapted to the trigger ball (15).