Crack monitoring device for road slope

Abstract

The invention belongs to the technical field of road side slope crack monitoring, and particularly discloses a road side slope crack monitoring device which comprises a crack meter body, mounting mechanisms are connected to the two sides of the lower end of the crack meter body correspondingly, and the lower end of one mounting mechanism is rotationally connected with a first rotating block; first rotating seats are rotatably connected to the two sides of the outer wall of the first rotating block, a fixing plate is connected to the lower portions of the first rotating seats, the lower ends of the first rotating seats are located at the upper end of the fixing plate in a sliding mode, a second rotating block is rotatably connected to the lower end of the other mounting mechanism, and second rotating seats are rotatably connected to the two sides of the outer wall of the second rotating block; according to the invention, high-precision monitoring of road slope cracks and long-acting protection of equipment are realized through accurate parallel adjustment of the crack meter and the slope and dynamic protection design.

Description

Technical Field

[0001] The present invention belongs to the technical field of road slope crack monitoring, and specifically relates to a crack monitoring device for road slopes. Background Art

[0002] As an important part of road infrastructure, the stability of road slopes is directly related to road traffic safety. With the continuous growth of traffic flow and frequent extreme weather, diseases such as cracks and landslides are likely to occur in slope soil. Therefore, real-time and accurate monitoring of slope cracks has become a key link to ensure the safe operation of roads.

[0003] Existing road slope crack monitoring devices usually use crack gauges to monitor cracks in real time. However, at present, the fixation of crack gauges is rather troublesome. The device adopts a fixed installation method and cannot automatically adjust the monitoring angle according to the changes in slope topography, resulting in it being difficult for the crack gauge to be parallel to the crack direction. During measurement, tangential displacement interference is easily mixed in, causing data distortion; moreover, the current equipment has insufficient protection performance and is difficult to resist harsh environmental factors such as rain erosion and rockfall impact, resulting in a high failure rate and short service life of the monitoring equipment, and it cannot meet the needs of long-term and continuous monitoring. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a crack monitoring device for road slopes is proposed.

[0005] To achieve the above object, the present invention provides a crack monitoring device for road slopes, including a crack gauge body. Both sides of the lower end of the crack gauge body are connected with installation mechanisms. One of the installation mechanisms is rotatably connected with a first rotating block at the lower end. Both sides of the outer wall of the first rotating block are rotatably connected with first rotating seats. A fixing plate is connected below the first rotating seat. The lower end of the first rotating seat slides on the upper end of the fixing plate. The lower end of the other installation mechanism is rotatably connected with a second rotating block. Both sides of the outer wall of the second rotating block are rotatably connected with second rotating seats. The lower ends of the two second rotating seats are connected with a bottom plate. Both sides of the bottom plate are connected with mounting plates. The lower ends of the fixing plate and the bottom plate are evenly connected with insertion rods. A protection component is connected between the middle part of one side of the fixing plate and the corresponding mounting plate on one side, and between the middle part of the other side of the fixing plate and the corresponding mounting plate on the other side. The protection component is mainly used to protect the crack gauge body and prevent falling rocks or rain from damaging the crack gauge body.

[0006] In the above technical solution, further, the installation mechanism includes supporting blocks. In the middle of the upper ends of the two supporting blocks, support rods are connected respectively. Both ends of the crack gauge body are arranged in a circular ring structure. Both ends of the crack gauge body are respectively inserted into the outer walls of the two support rods. The upper ends of the two supporting blocks are respectively connected to both sides of the lower end of the crack gauge body. An installation ring is sleeved on the outer walls of the two support rods. The lower ends of the two installation rings are respectively in contact with both sides of the upper end of the crack gauge body. The two support rods are arranged in a threaded shape. An installation nut is threadedly connected to the outer wall of the support rod. The lower end of the installation nut is in contact with the upper end of the installation ring.

[0007] In the above technical solution, further, one side of the upper end of the fixing plate is connected with a support plate. One side of the support plate is connected with a lead screw. One end of the lead screw penetrates and extends to one side of the support plate. One side of the support plate is connected with a sliding rod. The sliding rod is located on one side of the lead screw. In the above technical solution, further, moving blocks are slidably connected to the outer walls of the lead screw and the sliding rod. One of the moving blocks is threadedly connected to the lead screw. Both sides of the middle parts of both sides of the two moving blocks are respectively connected to both sides of the two first rotating seats. In the above technical solution, further, sliding blocks are connected to the middle parts of both sides of the bottom plate. The two sliding blocks are respectively slid on one side of the two mounting plates. Chute grooves are respectively formed at the positions corresponding to the two sliding blocks on one side of the two mounting plates. The two sliding blocks are respectively slidably connected inside the two chute grooves. The cross-sectional shapes of the sliding blocks and the chute grooves are both arranged in an inverted convex structure. In the above technical solution, further, the protection component includes support plates. The number of the support plates is two groups. One side of the upper ends of the two support plates is rotatably connected with a first connecting seat. A first connecting block is rotatably connected between the two first connecting seats. One end of the two first connecting blocks is connected with an electric telescopic rod.

[0008] In the above technical solution, further, one end of the two electric telescopic rods is connected with a second connecting block. Second connecting seats are rotatably connected to the outer walls of the two second connecting blocks. A protection shell is connected to the lower ends of the two second connecting seats. A sealing strip is connected to one side of the protection shell.

[0009] In the above technical solution, further, the lower end of the protection shell is in contact with one side of the upper ends of the two support plates. A support block is rotatably connected to the lower part of one side of the protection shell. Both sides of the two support blocks are respectively connected to one side of the upper ends of the two support plates through support seats.

[0010] Compared with the prior art, the present invention has the following beneficial effects: Through the linkage adjustment of the lead screw and the double rotating seats, it is ensured that the crack gauge body is always parallel to the trend of the slope crack, avoiding measurement errors caused by angular deviation, effectively eliminating the interference of tangential displacement, enabling the monitoring data to accurately reflect the actual deformation of the crack, and significantly improving the reliability and effectiveness of the monitoring results.

[0011] The protective shell is driven to close electrically and forms a fully enclosed protective space in combination with the sealing strip. It can effectively resist external infringements such as rainwater, dust, and falling rocks. When the displacement of the device is caused by the change in crack width, the protective shell can automatically adjust the angle and position through the rotation fulcrum and the electric telescopic rod, and always maintain a tight seal, providing durable and stable protection for the crack gauge body and greatly reducing the risk of equipment failure.

[0012] The device organically combines the precise monitoring and efficient protection functions of the crack gauge. On the one hand, it ensures the high-precision acquisition of monitoring data, and on the other hand, it extends the service life of the equipment through the protection component. The ingenious design of the mechanical structure realizes the synchronous operation of stress release and protection sealing, reducing monitoring deviation and equipment damage caused by external factors. Brief Description of the Drawings

[0013] Figure 1 It is the overall structural schematic diagram proposed by the present invention; Figure 2 It is the opening structural schematic diagram of the protective shell proposed by the present invention; Figure 3 It is the installation structural schematic diagram of the plug rod proposed by the present invention; Figure 4 It is the contraction structural schematic diagram of the electric telescopic rod proposed by the present invention; Figure 5 It is the installation structural schematic diagram of the fixed plate proposed by the present invention; Figure 6 It is the installation structural schematic diagram of the moving block proposed by the present invention; Figure 7 It is the installation structural schematic diagram of the sliding rod proposed by the present invention; Figure 8 It is the installation structural schematic diagram of the slider proposed by the present invention.

[0014] In the figure: 1, crack gauge body; 2, supporting block; 3, support rod; 4, mounting ring; 5, mounting nut; 6, first rotating block; 7, first rotating seat; 8, fixed plate; 9, support plate; 10, lead screw; 11, sliding rod; 12, moving block; 13, plug rod; 14, second rotating block; 15, second rotating seat; 16, bottom plate; 17, mounting plate; 18, slider; 19, sliding groove; 20, support plate; 21, first connecting seat; 22, first connecting block; 23, electric telescopic rod; 24, second connecting block; 25, second connecting seat; 26, protective shell; 27, sealing strip; 28, support block. Detailed implementation manners In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0015] As Figures 1-8 A crack monitoring device for a road slope shown in the figure includes a crack meter body 1. Both sides of the lower end of the crack meter body 1 are connected with installation mechanisms, which can respectively install both ends of the crack meter body 1 above the first rotating block 6 and the second rotating block 14. One of the installation mechanisms is rotatably connected to the first rotating block 6 at the lower end. Both sides of the outer wall of the first rotating block 6 are rotatably connected with first rotating seats 7. A fixing plate 8 is connected below the first rotating seats 7, which can fix one end of the crack meter body 1 above the slope ground. The lower end of the first rotating seat 7 slides on the upper end of the fixing plate 8. The lower end of the other installation mechanism is rotatably connected to the second rotating block 14, which can adjust the angular position of the crack meter body 1. Both sides of the outer wall of the second rotating block 14 are rotatably connected with second rotating seats 15. The lower ends of the two second rotating seats 15 are connected with a bottom plate 16. Both sides of the bottom plate 16 are connected with mounting plates 17. The lower ends of the fixing plate 8 and the bottom plate 16 are evenly connected with inserting rods 13, which is convenient for inserting the fixing plate 8 and the bottom plate 16 onto the slope. A protection component is connected between one side of the fixing plate 8 and the middle of one corresponding mounting plate 17 on one side and between the other side of the fixing plate 8 and the middle of the other corresponding mounting plate 17 on the other side. The protection component is mainly used to protect the crack meter body 1 to avoid damage to the crack meter body 1 caused by falling stones or rainwater; Through the rotational connection between the first rotating block 6 and the first rotating seat 7, the left end of the crack meter body 1 can rotate around the axis to adapt to the small angular changes of the slope soil body. Through the rotation of the second rotating block 14 and the second rotating seat 15, the angular self-adaptation adjustment of the right end of the crack meter body 1 is realized to ensure that the sensor axis is always parallel to the crack direction. The fixing plate 8 and the bottom plate 16 are inserted into the slope rock and soil body through the evenly distributed inserting rods 13 at the lower end to form stable anchoring points. On both sides of the gap between the fixing plate 8 and the bottom plate 16, a set of protection components are arranged on each side to form a full-wrap protection for the crack meter body 1, and the protection range covers the middle of the sensor to the connection points at both ends.

[0016] The installation mechanism includes a supporting block 2. The middle parts of the upper ends of the two supporting blocks 2 are both connected with a supporting rod 3, which is convenient for the crack meter body 1 to be sleeved on the outer wall of the supporting rod 3 to improve the installation efficiency of the crack meter body 1. Both ends of the crack meter body 1 are arranged in a circular ring structure. Both ends of the crack meter body 1 are respectively inserted into the outer walls of the two supporting rods 3. The upper ends of the two supporting blocks 2 are respectively connected with both sides of the lower end of the crack meter body 1. Installation rings 4 are sleeved on the outer walls of the two supporting rods 3, which is convenient for pressing the crack meter body 1 above the supporting block 2. The lower ends of the two installation rings 4 are respectively in contact with both sides of the upper end of the crack meter body 1. The two supporting rods 3 are in a threaded shape. A mounting nut 5 is threadedly connected to the outer wall of the supporting rod 3. The lower end of the mounting nut 5 is in contact with the upper end of the installation ring 4; The circular ring structures at both ends of the crack gauge body 1 and the support rod 3 adopt a clearance fit. With the cooperation of the mounting ring 4 and the mounting nut 5, it can be quickly disassembled and assembled, improving the on-site operation efficiency. By tightening the mounting nut 5, it is ensured that it does not loosen in a vibrating environment.

[0017] One side of the upper end of the fixed plate 8 is connected with a support plate 9, which can install the lead screw 10 and the slide rod 11. One side of the support plate 9 is connected with the lead screw 10, which can adjust the position of the first rotating seat 7. One end of the lead screw 10 extends through to one side of the support plate 9. One side of the support plate 9 is connected with the slide rod 11. The slide rod 11 is located on one side of the lead screw 10. Moving blocks 12 are slidably connected to the outer walls of both the lead screw 10 and the slide rod 11, improving the stability performance of the first rotating seat 7. One of the moving blocks 12 is threadedly connected to the lead screw 10. One sides of the two moving blocks 12 are respectively connected to the middle parts of both sides of the two first rotating seats 7. Middle parts of both sides of the bottom plate 16 are both connected with sliders 18, facilitating the adjustment of the position of the bottom plate 16. When the crack widens, the distance between both ends of the crack gauge body 1 elongates, and the position of the bottom plate 16 or the fixed plate 8 is adjusted. Consequently, the position of the bottom plate 16 is adjusted. The sliders 18 slide inside the sliding grooves 19. The two sliders 18 are respectively slid on one side of the two mounting plates 17. Sliding grooves 19 are respectively opened at the positions corresponding to the two sliders 18 on one side of the two mounting plates 17, ensuring the stability performance when the bottom plate 16 moves. The two sliders 18 are respectively slidably connected inside the two sliding grooves 19. The cross-sectional shape of the slider 18 and the cross-sectional shape of the sliding groove 19 are both arranged in an inverted convex structure; The lead screw 10 can achieve precise displacement control of the first rotating seat 7, meeting the angle calibration requirements between the crack gauge body 1 and the slope inclination angle. The slide rod 11 is arranged in parallel with the lead screw 10. The slide rod 11 is connected with the moving block 12, avoiding the eccentric load deformation caused by the single lead screw 10 being stressed, and ensuring the smoothness of the adjustment process. A double-nut anti-loosening device is arranged at the threaded connection of the moving block 12 and the lead screw 10, and it is locked after the adjustment is in place to prevent displacement drift caused by long-term vibration.

[0018] The protection component includes a support plate 20 which can support and place the protection shell 26. The number of support plates 20 is two groups. One side of the upper ends of the two support plates 20 is rotatably connected to a first connection seat 21. A first connection block 22 is rotatably connected between the two first connection seats 21. One end of the two first connection blocks 22 is connected to an electric telescopic rod 23, which can adjust the angular position of the protection shell 26. One end of the two electric telescopic rods 23 is connected to a second connection block 24. The outer walls of the two second connection blocks 24 are both rotatably connected to a second connection seat 25. The lower ends of the two second connection seats 25 are connected to a protection shell 26. One side of the protection shell 26 is connected to a sealing strip 27. The two protection shells 26 are symmetrically arranged, and thus the two sealing strips 27 are in contact with each other, improving the sealing performance between the two protection shells 26. The lower end of the protection shell 26 is in contact with one side of the upper ends of the two support plates 20. One side of the lower part of the protection shell 26 is rotatably connected to a support block 28. The protection shell 26 and the support block 28 rotate around a support seat. The two sides of the two support blocks 28 are respectively connected to one side of the upper ends of the two support plates 20 through support seats; The electric telescopic rod 23 converts linear motion into the rotational motion of the protection shell 26 through a four-bar linkage mechanism composed of the first connection seat 21, the first connection block 22, and the second connection block 24, realizing a 90-degree opening and closing. The edge of the protection shell 26 adopts a silicone rubber sealing strip 27. When the crack gauge body 1 displaces due to crack expansion, it can drive the bottom plate 16 to slide on one side of the two mounting plates 17, and the slider 18 slides inside the chute 19, and the crack gauge body 1 moves inside the protection shell 26.

[0019] Working principle: During installation, adjust the initial telescopic length of the crack gauge body 1 to match the estimated crack width. First, insert the fixing plate 8 and the bottom plate 16 into the predetermined position above the slope through the insertion rods 13 evenly connected to the lower ends, realizing the preliminary fixation of the device to the slope. Subsequently, respectively sleeved the circular ring structures at both ends of the telescopic crack gauge body 1 on the outer walls of the support rods 3 on the two support blocks 2. Utilize the support rods 3 arranged in a threaded shape, sleeve the mounting ring 4 thereon, and then tighten the mounting nut 5 to press the crack gauge body 1 onto the support block 2, completing the preliminary installation and fixation of the crack gauge body 1; If the slope has an inclination angle or the crack direction is inconsistent with the initial installation angle of the device, the angular position of the crack gauge body 1 can be calibrated by rotating the lead screw 10. The lead screw 10 utilizes the threaded transmission characteristic to drive the moving block 12 threadedly connected to the lead screw 10 to move along the axial directions of the lead screw 10 and the slide bar 11, driving the first rotating seat 7 to slide on the upper end of the fixing plate 8, making the first rotating seat 7 rotate around the first rotating block 6, synchronously adjusting the angle of the left end of the crack gauge body 1. At the same time, in cooperation with the rotational connection between the second rotating block 14 and the second rotating seat 15, the crack gauge body 1 adjusts its position and angle in all directions until it is parallel to the slope inclination angle, ensuring the monitoring accuracy.

[0020] The installation mechanism at the lower end of one support block 2 is connected to the fixed plate 8 through the first rotating block 6 and the first rotating seat 7, and the installation mechanism at the lower end of the other support block 2 is connected to the bottom plate 16 through the second rotating block 14 and the second rotating seat 15, realizing the stable installation of the crack gauge body 1 above the slope ground.

[0021] After the installation and angle calibration are completed, when the slope crack changes, the crack gauge body 1 relies on its own telescopic structure to respond to the change in crack width in real time. As the crack gradually expands, the crack gauge body 1 monitors the crack width data in real time. The protection component plays a key protective role during the operation of the device. The support plate 20 is used to support the protective shell 26. In the initial state, the two protective shells 26 are in an open state, and the lower part of one side is rotatably connected to the support plate 20 through the support block 28. After the crack gauge body 1 is installed, the two protective shells 26 are symmetrically arranged. The electric telescopic rod 23 is started, and through the transmission of components such as the first connecting seat 21, the first connecting block 22, the second connecting block 24, and the second connecting seat 25, the two protective shells 26 rotate towards each other until the sealing strips 27 on one side of the two protective shells 26 come into contact, forming a sealed space to protect the crack gauge body 1 and prevent damage caused by external factors such as rain and dust. During the monitoring process, when the crack expands, the bottom plate 16 slides in the chute 19 through the slider 18, driving the displacement of the second rotating seat 15. At this time, the electric telescopic rod 23 extends, pushing the protective shell 26 to rotate around the support block 28 to maintain the sealed state.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A crack monitoring device for a road slope, comprising a crack gauge body (1), characterized in that, Both sides of the lower end of the crack gauge body (1) are connected with installation mechanisms. One of the lower ends of the installation mechanisms is rotatably connected with a first rotating block (6). Both sides of the outer wall of the first rotating block (6) are rotatably connected with first rotating seats (7). A fixing plate (8) is connected below the first rotating seat (7). The lower end of the first rotating seat (7) slides on the upper end of the fixing plate (8). The lower end of the other installation mechanism is rotatably connected with a second rotating block (14). Both sides of the outer wall of the second rotating block (14) are rotatably connected with second rotating seats (15). The lower ends of the two second rotating seats (15) are connected with a bottom plate (16). Both sides of the bottom plate (16) are connected with mounting plates (17). The lower ends of the fixing plate (8) and the bottom plate (16) are evenly connected with inserting rods (13). A protection component is connected between one side of the fixing plate (8) and the middle part of one corresponding mounting plate (17) on one side, and between the other side of the fixing plate (8) and the middle part of the other corresponding mounting plate (17) on the other side. The protection component is mainly used to protect the crack gauge body (1) to prevent falling stones or rainwater from damaging the crack gauge body (1).

2. The crack monitoring device for a road slope according to claim 1, wherein, The installation mechanism includes supporting blocks (2). The middle parts of the upper ends of the two supporting blocks (2) are both connected with supporting rods (3). Both ends of the crack gauge body (1) are arranged in a circular ring structure. Both ends of the crack gauge body (1) are respectively inserted into the outer walls of the two supporting rods (3). The upper ends of the two supporting blocks (2) are respectively connected with both sides of the lower end of the crack gauge body (1). Installation rings (4) are sleeved on the outer walls of the two supporting rods (3). The lower ends of the two installation rings (4) are respectively in contact with both sides of the upper end of the crack gauge body (1). The two supporting rods (3) are in a threaded shape. An installation nut (5) is threadedly connected to the outer wall of the supporting rod (3). The lower end of the installation nut (5) is in contact with the upper end of the installation ring (4).

3. The crack monitoring device for a road slope according to claim 1, characterized in that, One side of the upper end of the fixing plate (8) is connected with a supporting plate (9). One side of the supporting plate (9) is connected with a lead screw (10). One end of the lead screw (10) extends through to one side of the supporting plate (9). One side of the supporting plate (9) is connected with a sliding rod (11). The sliding rod (11) is located on one side of the lead screw (10).

4. The crack monitoring device for a road slope according to claim 3, characterized in that, Moving blocks (12) are slidably connected to the outer walls of the lead screw (10) and the sliding rod (11). One of the moving blocks (12) is threadedly connected to the lead screw (10). One sides of the two moving blocks (12) are respectively connected with the middle parts of both sides of the two first rotating seats (7).

5. The crack monitoring device for a road slope according to claim 1, characterized in that, Both middle parts of both sides of the bottom plate (16) are connected with sliding blocks (18). The two sliding blocks (18) respectively slide on one side of the two mounting plates (17). Chute grooves (19) are respectively formed at the positions corresponding to the two sliding blocks (18) on one side of the two mounting plates (17). The two sliding blocks (18) are respectively slidably connected inside the two chute grooves (19). The cross-sectional shape of the sliding block (18) and the cross-sectional shape of the chute groove (19) are both arranged in an inverted convex shape structure.

6. The crack monitoring device for a road slope according to claim 1, wherein, The protection component includes a support plate (20), and the number of the support plates (20) is two groups. One side of the upper ends of the two support plates (20) is rotatably connected with a first connecting seat (21), and a first connecting block (22) is rotatably connected between the two first connecting seats (21). One end of the two first connecting blocks (22) is connected with an electric telescopic rod (23).

7. The crack monitoring device for a road slope according to claim 6, wherein, One end of the two electric telescopic rods (23) is connected with a second connecting block (24). The outer walls of the two second connecting blocks (24) are rotatably connected with second connecting seats (25). The lower ends of the two second connecting seats (25) are connected with a protective shell (26), and one side of the protective shell (26) is connected with a sealing strip (27).

8. The crack monitoring device for a road slope according to claim 7, characterized in that, The lower end of the protective shell (26) is in contact with one side of the upper ends of the two support plates (20). One side of the lower part of the protective shell (26) is rotatably connected with a support block (28), and both sides of the two support blocks (28) are respectively connected with one side of the upper ends of the two support plates (20) through support seats.

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