Adaptive 3D Laser Scanner for Slope Monitoring

Abstract

The present invention relates to the technical field of slope surface monitoring, and particularly relates to an adaptive three-dimensional laser scanner for slope monitoring. The three-dimensional laser scanner is adaptively leveled by an adaptive leveling component. When the triangular support frame is in an inclined state, the liquid level in the adaptive leveling cylinder will still be in a horizontal state, and the center of the leveling piston also remains in a horizontal state. The leveling connecting rod is connected to the center of the leveling piston through a ball bearing, so that the leveling connecting rod realizes adaptive leveling, and the adaptive leveling cylinder is sealed and blocked by a sealing control component to lock the leveling piston, thereby keeping the three-dimensional laser scanner in a horizontal state and not affected by the inclination of the triangular support frame.

Description

Technical Field

[0001] The present invention relates to the technical field of slope surface monitoring, and particularly relates to a slope monitoring adaptive three-dimensional laser scanner. Background Art

[0002] A slope is formed under the action of complex internal and external geological stresses and develops under various factors. The deformation of a slope is an inevitable phenomenon during the formation and development process of the slope and is a complex dynamic dissipation process. During the process of slope instability, various surface failure characteristics will appear. Monitoring and analyzing these characteristic changes is an important link in slope prevention and treatment.

[0003] Currently, three-dimensional laser scanners are used for slope monitoring. The three-dimensional laser scanner is installed on a triangular support frame. However, in most occasions where scanning operations are required during slope monitoring, the ground is not flat. Placing the tripod cannot keep the scanner level, resulting in the position offset of the scanner and incorrect scanning angles, causing actual scanning failures. Usually, the legs of the triangular support are adjusted separately. At least two sets of legs need to be adjusted separately to possibly achieve effective leveling operations. The operation is cumbersome. Moreover, for the slope terrain, the current leveling and locking operations are troublesome. When used in different sections, frequent leveling operations are required, and the leveling effect of the scanner cannot be accurately guaranteed, resulting in poor use effects and certain defects. Therefore, it is necessary to develop a slope monitoring adaptive three-dimensional laser scanner. Summary of the Invention

[0004] In view of the above-mentioned defects and problems, the present invention provides a slope monitoring adaptive three-dimensional laser scanner. The purpose is to adaptively level the three-dimensional laser scanner through an adaptive leveling component. When the triangular support frame is in an inclined state, the liquid level in the adaptive leveling cylinder will still be in a horizontal state, and the center of the leveling piston also remains in a horizontal state. The leveling connecting rod is connected to the center of the leveling piston through a ball bearing, enabling the leveling connecting rod to achieve adaptive leveling. And the adaptive leveling cylinder is sealed and blocked through a sealing control component, locking the leveling piston, thereby keeping the three-dimensional laser scanner in a horizontal state, unaffected by the inclination of the triangular support frame.

[0005] The solution adopted by the present invention to solve its technical problems is as follows: A slope monitoring adaptive three-dimensional laser scanner, which includes a triangular support frame, and also includes an adaptive leveling component. The adaptive leveling component includes a liquid tank provided above the triangular support frame. A plurality of adaptive leveling cylinders are annularly arranged above the liquid tank. The adaptive leveling cylinders are communicated with the liquid tank. A leveling piston is fitted in the adaptive leveling cylinder in a matching manner. A ball bearing is provided at the top of the leveling piston. A leveling connecting rod is arranged in the adaptive leveling cylinder, and the leveling connecting rod is hinged to the leveling piston through the ball bearing. A support plate is provided above the adaptive leveling cylinder, and the three-dimensional laser scanner is fixed above the support plate. The top of the leveling connecting rod is connected to the support plate. A sealing control component is provided in the liquid tank for blocking and communicating the adaptive leveling cylinders. When the triangular support frame is tilted, the liquid levels in each adaptive leveling cylinder are in the same horizontal state, keeping the center of the leveling piston in a horizontal state, enabling each leveling connecting rod to adaptively level. After the sealing control component seals the adaptive leveling cylinders, the three-dimensional laser scanner is kept in a level state.

[0006] Further, the sealing control component includes a sealing adjustment plate provided in the liquid tank. Communication holes corresponding to the adaptive leveling cylinders are opened on the sealing adjustment plate, and an opening and closing member for controlling the sealing adjustment plate is provided at the top of the liquid tank. The opening and closing member controls the sealing adjustment plate to enable the communication holes to communicate with or be misaligned and blocked from the adaptive leveling cylinders, and a ring baffle is provided below the sealing adjustment plate.

[0007] Further, the opening and closing member includes a transfer sleeve installed at the top of the liquid tank. A swing rod is installed in the transfer sleeve through a torsion spring and is connected to the sealing adjustment plate. The swing rod can control the rotation of the sealing adjustment plate.

[0008] Further, the opening and closing member includes a shaft sleeve installed at the top of the liquid tank. A shaft rod is sleeved in the shaft sleeve. The shaft rod is connected to the sealing adjustment plate. A driven gear is sleeved at the free end of the shaft rod. The main gear at the output end of an external motor meshes with the driven gear.

[0009] Further, the ball bearing is provided at the center of the top of the leveling piston, and the bottom of the leveling connecting rod is hinged to the ball bearing.

[0010] Further, at least three adaptive leveling cylinders are provided.

[0011] Further, the leveling connecting rod is composed of a main rod and an auxiliary rod. The auxiliary rod is sleeved in the main rod, and a jacking mechanism for jacking up the support plate is provided on the liquid tank.

[0012] Advantages of the present invention: The structure of the present invention is unique and ingeniously designed. An adaptive leveling component is arranged above the triangular support frame to adaptively level the 3D laser scanner. When the triangular support frame is in an inclined state, the liquid level in the adaptive leveling cylinder will still be in a horizontal state, and the center of the leveling piston also remains horizontal. The leveling connecting rod is connected to the center of the leveling piston through a ball bearing, enabling the leveling connecting rod to achieve adaptive leveling. The leveling connecting rod will still ensure a vertical state, and the support plate becomes horizontal. The swing rod rotates to control the sealing adjustment plate to misalign the communication hole with the adaptive leveling cylinder, which can seal and block the adaptive leveling cylinder. The liquid media in each adaptive leveling cylinder are no longer connected. The leveling connecting rod is locked by the leveling piston. At this time, even if the triangular support frame is in an inclined state, each leveling connecting rod is in a vertical state, adaptively leveling the support plate, and then keeping the 3D laser scanner in a horizontal state, without being affected by the inclination of the triangular support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present invention.

[0014] Figure 2 It is one of the schematic structural diagrams of the adaptive leveling component.

[0015] Figure 3 It is Figure 2 explosion schematic diagram of

[0016] Figure 4 It is a schematic structural diagram of the liquid tank.

[0017] Figure 5 It is a schematic internal structure diagram of the liquid tank.

[0018] Figure 6 It is a schematic structural diagram of the leveling connecting rod.

[0019] In the figure: 1 - triangular support frame, 2 - 3D laser scanner, 3 - adaptive leveling component, 301 - liquid tank, 302 - adaptive leveling cylinder, 303 - leveling piston, 304 - ball bearing, 305 - leveling connecting rod, 305a - main rod, 305b - auxiliary rod, 305c - axis positioning groove, 306 - support plate, 307 - adapter sleeve, 308 - sealing adjustment plate, 309 - swing rod, 310 - ring baffle, 311 - communication hole, 4 - lifting mechanism, 401 - lifting box, 402 - relief hole, 403 - lifting rod, 5 - electromagnet, 6 - demagnetizing electromagnet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] In Embodiment 1, 3D laser scanners are currently used for slope monitoring. The 3D laser scanner is installed on a triangular support frame. However, in most cases where scanning operations are required during slope monitoring, the ground is uneven. Placing the tripod cannot keep the scanner level, causing the scanner to shift in position and resulting in an incorrect scanning angle, leading to actual scanning failure. Usually, the scanner is adjusted by separately adjusting the legs of the triangular support frame. At least two sets of legs need to be adjusted separately to possibly achieve effective leveling operations. The operation is cumbersome. Moreover, for the slope terrain, the current leveling and locking operations are troublesome. When used in different sections, frequent leveling operations are required, and the leveling effect of the scanner cannot be accurately guaranteed.

[0022] To address the above problems, this embodiment provides an adaptive 3D laser scanner for slope monitoring. As Figures 1-3 shown, a guide rod is connected to the bottom of the triangular support frame 1. Each support leg is connected to a ring-shaped ear on the guide rod. The adaptive leveling assembly 3 is provided above the triangular support frame 1. The liquid tank 301 is fixedly installed on the top of the triangular support frame. Water or a liquid medium can be filled in the liquid tank 301. Three adaptive leveling cylinders 302 are arranged in a ring shape on the top of the liquid tank 301. The adaptive leveling cylinders 302 are directly communicated with the liquid tank 301. The liquid medium in the liquid tank 301 can enter the adaptive leveling cylinders 302. Since the adaptive leveling cylinders 302 are interconnected, the liquid levels in the adaptive leveling cylinders 302 are in the same horizontal state. A leveling piston 303 is fitted in the adaptive leveling cylinder 302. The leveling piston 303 is supported by the liquid medium in the adaptive leveling cylinder 302. The leveling piston 303 can move in the adaptive leveling cylinder 302 according to the water level. A ball bearing 304 is installed at the center of the top of the leveling piston 303. The bottom of the leveling connecting rod 305 is hinged to the ball bearing 304. A support plate 306 is provided above the adaptive leveling cylinder 302. The top of the leveling connecting rod 305 is fixedly connected to the support plate 306. The support plate 306 is supported by the leveling connecting rod 305. The 3D laser scanner 2 is fixedly installed on the support plate 306, and a protective cover can be provided outside the adaptive leveling cylinder to protect the multiple adaptive leveling cylinders;

[0023] A sealing control assembly for blocking and communicating with the adaptive leveling cylinder 302 is provided in the liquid tank 301. In this embodiment, as Figure 3 and Figure 5As shown in the figure, a matching sealing and adjusting plate 308 is provided at the top inside the liquid tank 301. A communication hole 311 corresponding to the adaptive leveling cylinder 302 is provided on the sealing and adjusting plate 308. A transfer sleeve 307 is installed at the top of the liquid tank 301. The end of the swing rod 309 is installed in the transfer sleeve 307 through a torsion spring and is connected to the sealing and adjusting plate 308. The swing rod 309 can control the rotation of the sealing and adjusting plate 308. A ring baffle 310 is provided below the sealing and adjusting plate 308. The ring baffle 310 is fixed inside the liquid tank 301. The ring baffle 310 can support the sealing and adjusting plate 308. When the swing rod 309 rotates to control the sealing and adjusting plate 308 to connect the communication hole 311 with the adaptive leveling cylinder 302, the liquid medium can enter the adaptive leveling cylinder 302. When the swing rod 309 rotates to control the sealing and adjusting plate 308 to misalign the communication hole 311 with the adaptive leveling cylinder 302, the adaptive leveling cylinder 302 can be sealed and blocked to lock the leveling connecting rod 305;

[0024] Preferably, the leveling connecting rod 305 can also adopt a sleeve structure, such as Figure 6 As shown in the figure, the leveling connecting rod 305 is composed of a main rod 305a and an auxiliary rod 305b. The auxiliary rod 305b can be sleeved inside the main rod 305a. The top of the auxiliary rod 305b is fixedly connected to the support plate 306. The bottom of the main rod 305a is hinged to the ball bearing 304. At the same time, an axial positioning groove 305c is provided inside the main rod 305a, so that the auxiliary rod 305b can be automatically positioned and sleeved inside the main rod 305a. A jacking mechanism 4 for jacking up the support plate 306 can be provided at the top of the liquid tank 301. The jacking mechanism 4 includes a jacking box 401. A relief hole 402 corresponding to the swing rod 309 is provided on the side of the jacking box 401. The swing rod 309 can move inside the relief hole 401 to control the sealing and adjusting plate 308. A jacking rod 403 concentric with the support plate 306 is installed inside the jacking box 401. A driving motor for driving the jacking rod 403 to lift and lower is installed inside the jacking box 401. The output end of the motor can be transmitted to the jacking rod 403 through a gear, or an electric push rod concentric with the support plate can be directly installed inside the jacking box, and the output end of the electric push rod is connected to the support plate;

[0025] In some special cases, an electromagnet 5 can also be installed at the top of the jacking rod 403. The electromagnet 5 can adsorb the support plate 306. At the same time, a demagnetizing electromagnet 6 is installed inside the auxiliary rod 305b of the leveling connecting rod 305. When the jacking rod 403 jacks up the support plate 306, the electromagnet 5 is energized to directly adsorb the support plate 306. After the demagnetizing electromagnet 6 is energized, the auxiliary rod 305b disconnects the adsorption of the main rod 305a. When the jacking rod 403 drives the support plate 306 to retract, the electromagnet 5 is powered off and no longer adsorbs the support plate 306. At this time, after the demagnetizing electromagnet 6 is powered off, the auxiliary rod 305b adsorbs the main rod 305a, so that the auxiliary rod and the main rod are stably docked and the auxiliary rod is prevented from falling off the main rod;

[0026] During slope monitoring, the swing rod 309 controls the rotation of the sealing adjustment plate 308 to connect the communication hole 311 with the adaptive leveling cylinder 302. The liquid medium in the liquid tank 301 enters the adaptive leveling cylinder 302. When the triangular support frame 1 is placed and tilted at an angle, under the principle of the communicating vessel, the liquid levels in each adaptive leveling cylinder 302 are at the same horizontal state, so that the center of the leveling piston 303 is also kept in a horizontal state. The bottom of the leveling connecting rod 305 is connected to the center of the leveling piston 303 through a ball bearing 304, and the leveling connecting rod 305 will still ensure a vertical state, directly enabling the leveling connecting rod 305 to achieve adaptive leveling. The support plate 306 is in a horizontal state at this time. Then, the swing rod 309 rotates to control the sealing adjustment plate 308 to misalign the communication hole 311 with the adaptive leveling cylinder 302, which can seal and block the adaptive leveling cylinder 302. The liquid media in each adaptive leveling cylinder 302 are no longer connected, and the leveling connecting rod 305 is locked through the leveling piston 303. At this time, even if the triangular support frame is in an inclined state, each leveling connecting rod is in a vertical state, adaptively leveling the support plate, and then keeping the 3D laser scanner in a horizontal state, not affected by the inclination of the triangular support frame.

[0027] In some special cases, for example, when the leveling connecting rod is affected by excessive gravity from above, resulting in excessive pressure on the leveling piston and the leveling connecting rod being unable to achieve adaptive leveling, the drive motor in the jacking box 401 drives the jacking rod 403 to jack up the jacking rod 403. The auxiliary rod 305b will move upward in the main rod 305a, and the bottom of the auxiliary rod 305b will no longer contact the main rod 305a, causing the jacking rod 403 to jack up the support plate 306, changing the support plate to a state of being separated from the liquid tank. At this time, the main rod 305a is not affected by the gravity from above. After the main rod 305a is adaptively leveled in the adaptive leveling cylinder 302 and the adaptive leveling cylinder 302 is sealed through the sealing adjustment plate 308, each main rod 305a is in a fixed leveling state at this time. Then, the jacking rod 403 retracts and no longer jacks up the support plate, and the auxiliary rod 305b falls back into the axial positioning groove 305c of the main rod, achieving automatic alignment and sleeving.

[0028] Preferably, considering that when the jacking rod drives the auxiliary rod 305b to move upward, the auxiliary rod 305b is in a disengaged state from the main rod 305a, and the support plate 306 is jacked and supported by the jacking rod. The auxiliary rod 305b may break away from the main rod, causing the support plate to break away from above the liquid tank. Therefore, an electromagnet 5 is installed at the top of the jacking rod 403. The electromagnet 5 can adsorb the support plate. At the same time, a demagnetizing electromagnet 6 is installed in the auxiliary rod 305b. The auxiliary rod 305b can be firmly fixed in the main rod 305a through the demagnetizing electromagnet. When the electromagnet 5 and the demagnetizing electromagnet 6 are energized, the electromagnet 5 adsorbs and stabilizes the support plate, and the support plate will be firmly fixed on the jacking rod. At the same time, after the demagnetizing electromagnet is energized, it loses its magnetism and no longer adsorbs the auxiliary rod. The jacking rod jacks up the support plate. When the leveling connecting rod finishes leveling, the electromagnet 5 is powered off and does not adsorb the support plate. After the demagnetizing electromagnet is powered off, it directly causes the auxiliary rod 305b to adsorb the main rod 305b, realizing the stable sleeving of the auxiliary rod 305b in the main rod 305a.

[0029] Embodiment 2. A slope monitoring adaptive three-dimensional laser scanner in this embodiment will be described with the differences from those in Embodiment 1 as the focus.

[0030] In this embodiment, a transfer sleeve and a swing rod are no longer used at the top of the liquid tank 301. A bushing is installed at the top of the liquid tank, and a shaft rod is sleeved in the bushing. The bottom of the shaft rod is fixedly connected to the seal adjusting plate 308. A driven gear is sleeved at the free end of the shaft rod. A motor can be arranged on the liquid tank, and the main gear at the output end of the motor meshes with the driven gear to control the rotation of the seal adjusting plate through the motor.

[0031] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adaptive three-dimensional laser scanner for slope monitoring, including a triangular support frame, characterized in that, It further includes an adaptive leveling component. The adaptive leveling component includes a liquid tank arranged above the triangular support frame. A plurality of adaptive leveling cylinders are annularly arranged above the liquid tank. The adaptive leveling cylinders are communicated with the liquid tank. A leveling piston is fitted in each adaptive leveling cylinder. A ball bearing is arranged at the top of the leveling piston. A leveling connecting rod is arranged in the adaptive leveling cylinder, and the leveling connecting rod is hinged to the leveling piston through the ball bearing. A support plate is arranged above the adaptive leveling cylinder, and the 3D laser scanner is fixed above the support plate. The top of the leveling connecting rod is connected to the support plate. A sealing control component for blocking and communicating with the adaptive leveling cylinder is arranged in the liquid tank. When the triangular support frame is tilted, the liquid levels in the respective adaptive leveling cylinders are in the same horizontal state, keeping the center of the leveling piston in a horizontal state, enabling each leveling connecting rod to adaptively level. After the sealing control component seals the adaptive leveling cylinder, the 3D laser scanner is kept in a level state. The leveling connecting rod is composed of a main rod and an auxiliary rod. The auxiliary rod is sleeved in the main rod. The top of the auxiliary rod is fixedly connected to the support plate. The bottom of the main rod is hinged to the ball bearing. At the same time, an axial positioning groove is arranged in the main rod, enabling the auxiliary rod to be automatically positioned and sleeved in the main rod. A jacking mechanism for jacking up the support plate is arranged on the liquid tank. The jacking mechanism includes a jacking box. A relief hole is opened on the side of the jacking box. A jacking rod concentric with the support plate is installed in the jacking box. A driving motor for driving the jacking rod to lift and lower is installed in the jacking box. The output end of the motor can be transmitted to the jacking rod through a gear.

2. The adaptive three-dimensional laser scanner for slope monitoring according to claim 1, characterized in that, The sealing control component includes a sealing adjustment plate arranged in the liquid tank. Communication holes corresponding to the adaptive leveling cylinders are opened on the sealing adjustment plate. An opening and closing member for controlling the sealing adjustment plate is arranged at the top of the liquid tank. The opening and closing member controls the sealing adjustment plate to enable the communication holes to communicate with or be misaligned and blocked from the adaptive leveling cylinders. A ring baffle is arranged below the sealing adjustment plate.

3. The adaptive three-dimensional laser scanner for slope monitoring according to claim 2, characterized in that, The opening and closing member includes a transfer sleeve installed at the top of the liquid tank. A swing rod is installed in the transfer sleeve through a torsion spring and is connected to the sealing adjustment plate. The swing rod can control the rotation of the sealing adjustment plate.

4. The adaptive three-dimensional laser scanner for slope monitoring according to claim 2, wherein The opening and closing member includes a bushing installed at the top of the liquid tank. A shaft rod is sleeved in the bushing. The shaft rod is connected to the sealing adjustment plate. A driven gear is sleeved at the free end of the shaft rod. The main gear at the output end of the external motor meshes with the driven gear.

5. The adaptive three-dimensional laser scanner for slope monitoring according to claim 1, wherein, The ball bearing is arranged at the center of the top of the leveling piston. The bottom of the leveling connecting rod is hinged to the ball bearing.

6. The adaptive three-dimensional laser scanner for slope monitoring according to claim 1, wherein At least three adaptive leveling cylinders are provided.

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