Wading dangerous rock monitoring device with self-protection function

Abstract

The invention belongs to the technical field of geological disaster protection, and discloses a wading dangerous rock monitoring device with a self-protection function, which comprises a pull rope crack meter main body, a main protection part, an auxiliary protection part and a driving wheel, and is characterized in that the auxiliary protection part is arranged at the tail end of a pull rope of the pull rope crack meter main body; the main protection part comprises a mounting part and a locking block, a locking spring is arranged at the tail end of the locking block, a positioning block and a spring piece are arranged on the mounting part, and the tail end of the positioning block is clamped in a positioning groove in the locking block; the driving wheel makes contact with the surface of the pull rope, the protruding block on the driving wheel corresponds to the shifting rod on the installation part in position, the shifting rod makes contact with the bottom face of the transverse rod, and the transverse rod is connected with the positioning block. When the dangerous rock body collapses or cracks are increased, the pull rope is excessively pulled, the driving wheel rotates, the locking block is unlocked through cooperation of the protruding block and the shifting rod, the pull rope is fixed through the locking block, and the situation that the pull rope is continuously pulled out, and consequently the device is damaged is avoided; and the auxiliary protection part is disconnected to release the connection between the pull rope and the dangerous rock body, so that self-protection under extreme working conditions is realized, and the device is prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of geological disaster prevention technology, and in particular to a water-borne dangerous rock monitoring device with self-protection function. Background Technology

[0002] Dangerous rocks refer to rocks with the potential risk of collapse, especially those in mountainous riverbanks and reservoir banks. These rocks are more prone to fracturing and collapse due to factors such as heavy rainfall and reservoir water level fluctuations, posing a serious threat to people's lives and property, waterway transportation, and critical infrastructure. Therefore, continuous and accurate deformation monitoring of surface cracks in dangerous rock masses is an essential early warning measure. In the current air-ground-ground dangerous rock early warning system, crack gauges, as a key component of ground-based early warning, are most widely used for monitoring cracks in dangerous rocks. Specifically, the sensor body is installed on stable bedrock, and the end of a rope is connected to an anchor point on the dangerous rock mass. When the dangerous rock mass shifts, it pulls the rope, which is converted into an electrical signal by the sensor and sent to the terminal, enabling real-time monitoring of crack opening. However, in extreme conditions such as rockfall or excessively large crack opening, the tension exerted on the rope by the rock mass on the current pull-wire crack gauge exceeds the capacity of the internal sensors, often causing damage to the device and potentially leading to it falling into the water along with the rockfall. This increases the cost of using the device. Therefore, there is an urgent need for a rockfall monitoring and early warning device that can self-protect itself under extreme conditions to solve this problem. Summary of the Invention

[0003] The present invention aims to provide a water-borne dangerous rock monitoring device with self-protection function, so as to solve the problem that the current dangerous rock early warning device cannot protect itself in the event of dangerous rock collapse.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A water-borne dangerous rock monitoring device with self-protection function includes a pull-rope crack gauge body, a main protective part, a secondary protective part, and a drive wheel. The secondary protective part is located at the end of the pull rope of the pull-rope crack gauge body and is used to disconnect the pull rope from the dangerous rock. The main protective part includes a mounting part installed on the pull-rope crack gauge body and a locking block slidably installed in the mounting part. Two sets of locking blocks are arranged opposite each other, located on both sides of the pull rope. The end of the locking block is provided with a locking spring for pushing the locking block out of the mounting part. The mounting part is provided with a positioning block and a spring plate. The spring plate presses the positioning block, and the end of the positioning block is locked in the positioning groove on the locking block. The drive wheel is set on the wheel frame of the main protective part and contacts the surface of the pull rope. The drive wheel is provided with a protrusion, which corresponds to the position of a lever for actuating the lever. The lever is rotatably mounted on a fixed shaft on the mounting part, and its end contacts the bottom surface of a crossbar. The two ends of the crossbar are respectively connected to two sets of positioning blocks.

[0005] Furthermore, the secondary protective part includes a connecting sleeve and a connecting head. The connecting head is connected inside the connecting sleeve. The connecting sleeve is connected to the end of the pull rope of the pull rope crack gauge body. A locking block and a compression spring for pushing the locking block to move are slidably installed inside the connecting sleeve. The end of the locking block protrudes from the inner wall of the connecting sleeve and is locked in the slot of the connecting head.

[0006] Furthermore, a set screw and a push plate are respectively installed inside the connecting sleeve. One side of the push plate is connected to the compression spring, and the other side is in contact with the end of the set screw. The end edge of the locking block is provided with an angle, and the end face is curved.

[0007] Furthermore, a rotating frame is provided on the mounting part, a drive wheel is provided on the connecting shaft of the rotating frame, a torsion spring is provided inside the drive wheel, and the torsion spring is sleeved on the connecting shaft of the rotating frame.

[0008] Furthermore, a fixing frame is provided on the mounting part, and an adjusting bolt is provided on the fixing frame. The end of the adjusting bolt abuts against the rotating frame to limit the position of the rotating frame.

[0009] Furthermore, the mounting part is provided with a fixing part, and a lead screw and a sliding block that cooperates with the lead screw are inserted inside the fixing part. The sliding block is located on one side of the positioning block, and the positioning block is set on the locking block.

[0010] Furthermore, the locking block has several toothed grooves at its end.

[0011] Furthermore, the mounting section is equipped with columns, and the crossbars are slidably sleeved on the columns.

[0012] The principles and beneficial effects of the technical solution are as follows: This invention provides a water-borne dangerous rock monitoring device with self-protection function. When the dangerous rock collapses or the cracks widen, excessive pulling of the pull rope causes the pull rope to drive the drive wheel to rotate. This causes the protrusion on the drive wheel to move the lever, thereby causing the positioning block to disengage from the positioning groove on the locking block and releasing the locking block from locking. Under the action of the locking spring, the locking block extends out of the mounting part and clamps and fixes the pull rope, thus preventing the pull rope from being pulled out further and excessively pulling on the sensor components inside the crack gauge body, which could damage the device. At the same time, after the pull rope is locked, the secondary protective part is subjected to excessive tension and separates from the end of the pull rope, thereby releasing the connection between the pull rope and the dangerous rock and preventing the device from collapsing along with the dangerous rock. This achieves self-protection under extreme working conditions and avoids damage to the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a water-borne dangerous rock monitoring device with self-protection function according to the present invention; Figure 2 This is a schematic diagram of the assembly structure of a water-borne dangerous rock monitoring device with self-protection function according to the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the main protective section in a water-borne dangerous rock monitoring device with self-protection function according to the present invention; Figure 6 This is a schematic diagram of the installation part in a water-borne dangerous rock monitoring device with self-protection function according to the present invention; Figure 7 This is a partial cross-sectional view of the main protective section in a water-borne dangerous rock monitoring device with self-protection function according to the present invention; The corresponding labels in the attached diagram are as follows: 1. Main body of the rope crack gauge; 2. Main protective part; 201. Mounting part; 202. Locking block; 203. Locking spring; 204. Positioning stop; 205. Positioning groove; 206. Positioning block; 207. Spring plate; 208. Crossbar; 209. Column; 3. Secondary protective part; 301. Connecting sleeve; 302. Connector; 303. Locking block; 304. Compression spring; 305. Top screw; 306. Push plate; 307. Locking groove; 4. Rotating frame; 401. Torsion spring; 402. Adjusting bolt; 403. Fixing frame; 5. Drive wheel; 501. Protrusion; 502. Lever; 503. Fixing shaft; 6. Fixing part; 601. Lead screw; 602. Sliding block. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figures 1-7As shown, a water-borne dangerous rock monitoring device with self-protection function includes a pull-rope crack gauge body 1, a main protective part 2, a secondary protective part 3, and a drive wheel 5. The secondary protective part 3 is located at the end of the pull rope of the pull-rope crack gauge body 1 and is used to disconnect the pull rope from the dangerous rock. The main protective part 2 includes a mounting part 201 installed on the pull-rope crack gauge body 1 and a locking block 202 slidably installed in the mounting part 201. Two sets of locking blocks 202 are arranged opposite each other, located on both sides of the pull rope. A locking spring 203 is provided at the end of the locking block 202 to push the locking block 202 out of the mounting part 201. The elastic force provided by the locking spring 203 is sufficient for the two sets of locking blocks 202 to clamp the pull rope and prevent the pull rope from continuing to extend out of the pull-rope crack gauge body 1, which would damage the sensor. A positioning block 206 and a spring plate 207 are provided on the mounting part 201. The spring plate 207 presses the positioning block 206, and the end of the positioning block 206 is locked in place by the locking block 206. The drive wheel 5 is arranged in two sets opposite to each other and is set on the wheel frame of the main protective part 2, in contact with the surface of the pull rope. When the pull rope is pulled out of the pull rope crack gauge body 1, the drive wheel 5 can be rotated by friction. The drive wheel 5 is provided with a protrusion 501, which corresponds to the position of the lever 502. When the drive wheel 5 drives the protrusion 501 to rotate to a certain position, the protrusion 501 contacts one end of the lever 502 and is used to move the lever 502. At this time, it is the maximum range of the pull rope crack gauge body 1. The lever 502 is rotatably set on the fixed shaft 503 on the mounting part 201, and its end contacts the bottom surface of the crossbar 208. When the lever 502 is pressed down and rotated by the protrusion 501, its end pryes the crossbar 208 to move upward. The lever principle is used to easily drive the positioning block 206 to move, avoiding excessive force on the positioning block 206, which would make unlocking difficult. The two ends of the crossbar 208 are respectively connected to the two sets of positioning blocks 206.

[0015] In use, the main body 1 of the pull-rope crack gauge is fixed to the stable bedrock. Then, holes are drilled in the unstable rock mass to fix the anchor points. The pull rope on the main body 1 of the pull-rope crack gauge is then slowly pulled out and connected to the anchor points through the secondary protective part 3 to complete the installation of the device. Initial data is recorded. When the crack between the unstable rock mass and the stable bedrock increases, the pull rope on the main body 1 of the pull-rope crack gauge is pulled out, providing feedback on the opening degree of the unstable rock crack, thus playing an early warning role. When the crack in the unstable rock mass opens to a certain extent, exceeding the range of the main body 1 of the pull-rope crack gauge, or when the unstable rock mass collapses directly, the pull rope is pulled out of the main body 1 of the pull-rope crack gauge by tension. When the pull rope extends, it will drive the drive wheel 5 to rotate, thereby changing the position of the protrusion 501 on the drive wheel 5, so that the protrusion 501 rotates with the drive wheel 5. When the protrusion 501 on the drive wheel 5 rotates to contact the lever 502, it will drive the lever 502 to rotate around the fixed shaft 503, so that the lever 502 will pry the crossbar 208. Rod 208 drives positioning block 206 to move upward, causing positioning block 206 to exit the positioning groove 205 and release the locking block 202. Under the action of locking spring 203, locking block 202 extends out of mounting part 201. The two sets of locking blocks 202 clamp and fix the pull rope, thereby preventing the pull rope from being pulled further, which could damage the sensor and other components inside the pull rope crack gauge body 1. After the pull rope is fixed, the traction force is no longer transmitted to the pull rope crack gauge body 1. The traction force of the collapsed rock mass is directly transmitted to the secondary protection part 3, which increases the traction force on the secondary protection part 3. When the traction force on the secondary protection part 3 is too large, the secondary protection part 3 automatically disconnects, causing the end of the pull rope to separate from the collapsed rock mass, thereby preventing damage to the pull rope or the device from falling into the water along with the collapsed rock mass. This allows the device to protect itself in extreme working conditions, preventing device damage and data loss, and also facilitating subsequent continued use and reducing the operating cost of the device.

[0016] In this embodiment, the secondary protective part 3 includes a connecting sleeve 301 and a connecting head 302. The connecting head 302 is connected inside the connecting sleeve 301. The connecting sleeve 301 is connected to the end of the pull rope of the pull rope crack gauge body 1. A locking block 303 and a compression spring 304 that pushes the locking block 303 to move are slidably disposed inside the connecting sleeve 301. The end of the locking block 303 protrudes from the inner wall of the connecting sleeve 301 and is locked in a slot 307 on the connecting head 302. Under the action of the compression spring 304, the locking block 303 is locked in the slot 307 of the connecting head 302, thereby securely connecting the connecting head 302 to the connecting sleeve 301. Furthermore, the compression spring 304 provides sufficient elasticity to prevent the locking block 303 from moving arbitrarily. Only when the connecting head 302 is subjected to a sufficiently large traction force will the slot 307 squeeze the locking block 303, causing the locking block 303 to move, thereby disconnecting the connecting head 302 from the connecting sleeve 301 and preventing damage to the pull rope.

[0017] In this embodiment, a set screw 305 and a push plate 306 are respectively inserted into the connecting sleeve 301. One side of the push plate 306 is connected to the compression spring 304, and the other side contacts the end of the set screw 305. The end edge of the locking block 303 is beveled, and the end face is curved. By adjusting the set screw 305, the compression degree of the compression spring 304 can be changed, thereby changing the elastic force it provides to the locking block 303. When installing the connector 302, the set screw 305 is loosened to reduce the elastic force provided by the compression spring 304. Combined with the bevel at the end of the locking block 303, the connector 302 can be easily inserted into the connecting sleeve 301, and the locking block 303 can be locked into the slot 307. After the connection is completed, the set screw 305 is tightened to increase the elastic force of the compression spring 304.

[0018] In this embodiment, a rotating frame 4 is provided on the mounting part 201, and a drive wheel 5 is provided on the connecting shaft of the rotating frame 4. A torsion spring 401 is provided inside the drive wheel 5 and is sleeved on the connecting shaft of the rotating frame 4. The torsion spring 401 can prevent the drive wheel 5 from rotating arbitrarily, so that the drive wheel 5 is kept in the correct position during installation, and the distance that the drive wheel 5 drives the protrusion 501 to rotate matches the displacement distance of the pull rope.

[0019] In this embodiment, a fixing frame 403 is provided on the mounting part 201, and an adjusting bolt 402 is provided on the fixing frame 403. The end of the adjusting bolt 402 abuts against the rotating frame 4 to limit the position of the rotating frame 4. When the pull rope is pulled out, the drive wheel 5 on the rotating frame 4 does not contact the pull rope and will not interfere with the extension of the pull rope. After the pull rope is installed in place, the adjusting bolt 402 is tightened to abut against the rotating frame 4, so that the drive wheel 5 on the rotating frame 4 abuts against the pull rope, maintaining a sufficiently large friction between the two. Thus, when the pull rope moves, it drives the drive wheel 5 to rotate, so as to facilitate the subsequent unlocking of the locking block 202.

[0020] In this embodiment, a fixing part 6 is provided on the mounting part 201. A lead screw 601 and a sliding block 602 that cooperates with the lead screw 601 are provided inside the fixing part 6. The sliding block 602 is located on one side of the positioning block 204, and the positioning block 204 is provided on the locking block 202. Because the locking spring 203 has a large elastic force, it is difficult to manually retract the locking block 202 into the mounting part 201. By rotating the screw 601, the sliding block 602 is moved. When the sliding block 602 moves, it pushes the positioning stop 204 on the locking block 202, thereby pushing the locking block 202 back into the mounting part 201. When the positioning groove 205 on the locking block 202 is aligned with the positioning block 206, the positioning block 206 is engaged in the positioning groove 205 under the action of the spring plate 207, thereby locking the locking block 202. At this time, rotating the screw 601 causes the sliding block 602 to separate from the positioning stop 204 and return to its original position, so that it will not block the subsequent extension of the locking block 202, allowing the operator to easily adjust the device to the working state.

[0021] In this embodiment, the locking block 202 has several toothed grooves at its end. The toothed grooves increase friction, allowing the locking block 202 to better clamp and lock the pull rope.

[0022] In this embodiment, a column 209 is provided on the mounting part 201, and crossbars 208 are slidably sleeved on the column 209. The column 209 increases the stability of the movement of the crossbars 208, making the crossbars 208 drive the positioning blocks 206 to move more stably, thus improving the reliability of the device.

[0023] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A water-borne dangerous rock monitoring device with self-protection function, characterized in that: The device includes a main body (1) of a pull rope crack gauge, a main protective part (2), a secondary protective part (3), and a drive wheel (5). The secondary protective part (3) is located at the end of the pull rope of the main body (1) of the pull rope and is used to disconnect the pull rope from the dangerous rock. The main protective part (2) includes a mounting part (201) installed on the main body (1) of the pull rope crack gauge and a locking block (202) slidably disposed in the mounting part (201). Two sets of locking blocks (202) are arranged opposite each other and are located on both sides of the pull rope. A locking spring (203) is provided at the end of the locking block (202) to push the locking block (202) out of the mounting part (201). A positioning block (206) is provided on the mounting part (201). The spring sheet (207) presses against the positioning block (206), and the end of the positioning block (206) is engaged in the positioning groove (205) on the locking block (202); the drive wheel (5) is mounted on the wheel frame of the main protective part (2) and contacts the surface of the pull rope. The drive wheel (5) is provided with a protrusion (501), which corresponds to the position of the lever (502) and is used to move the lever (502). The lever (502) is rotatably mounted on the fixed shaft (503) on the mounting part (201), and its end contacts the bottom surface of the crossbar (208). The two ends of the crossbar (208) are respectively connected to two sets of positioning blocks (206).

2. The water-borne dangerous rock monitoring device with self-protection function according to claim 1, characterized in that: The secondary protective part (3) includes a connecting sleeve (301) and a connector (302). The connector (302) is connected inside the connecting sleeve (301). The connecting sleeve (301) is connected to the end of the pull rope of the pull rope crack gauge body (1). A locking block (303) and a compression spring (304) for pushing the locking block (303) to move are slidably provided inside the connecting sleeve (301). The end of the locking block (303) protrudes from the inner wall of the connecting sleeve (301) and is locked in the slot (307) on the connector (302).

3. The water-borne dangerous rock monitoring device with self-protection function according to claim 2, characterized in that: The connecting sleeve (301) is respectively provided with a set screw (305) and a push plate (306). One side of the push plate (306) is connected to the compression spring (304), and the other side is in contact with the end of the set screw (305). The end edge of the locking block (303) is provided with an angle, and the end face is curved.

4. The water-borne dangerous rock monitoring device with self-protection function according to claim 1, characterized in that: The mounting part (201) is provided with a rotating frame (4), and the rotating frame (4) is provided with a drive wheel (5) on the connecting shaft. The drive wheel (5) is provided with a torsion spring (401), and the torsion spring (401) is sleeved on the connecting shaft of the rotating frame (4).

5. A water-borne dangerous rock monitoring device with self-protection function according to claim 4, characterized in that: The mounting part (201) is provided with a fixing frame (403), and the fixing frame (403) is provided with an adjusting bolt (402). The end of the adjusting bolt (402) abuts against the rotating frame (4) to limit the position of the rotating frame (4).

6. A water-borne dangerous rock monitoring device with self-protection function according to claim 1, characterized in that: The mounting part (201) is provided with a fixing part (6), and a lead screw (601) and a sliding block (602) that cooperates with the lead screw (601) are provided inside the fixing part (6). The sliding block (602) is located on one side of the positioning block (204), and the positioning block (204) is provided on the locking block (202).

7. A water-borne dangerous rock monitoring device with self-protection function according to claim 1, characterized in that: The locking block (202) has several toothed grooves at its end.

8. A water-borne dangerous rock monitoring device with self-protection function according to claim 1, characterized in that: The mounting part (201) is provided with a column (209), and the crossbars (208) are slidably sleeved on the column (209).

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