Quickly-networked construction period geological disaster monitoring device

By designing an elongation unit in a geological disaster monitoring device, the height adjustment of the monitoring device during installation is achieved, and the problem of fixed height and poor adaptability of the installation in the prior art is solved, the installation adaptability and early warning accuracy are improved, and the transportation cost is reduced.

CN119580441APending Publication Date: 2025-03-07YUNNAN DIQING NONFERROUS METAL CO LTD
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Patent Information

Application Number
CN202411786852.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-07

AI Technical Summary

Technical Problem

The existing geological disaster monitoring devices are highly fixed when installed and cannot adapt to different terrains and environments, resulting in the possibility of accurately detecting landslide risks under special terrain, and the transportation is inflexible, which increases costs.

Method used

A rapid networking geological disaster monitoring device is designed, and the height adjustment of the monitoring device during installation is realized by setting up an elongation unit, including lifting parts and driving parts. The elongation unit realizes upward movement and height adjustment of the lifting column through the synergy of the lifting groove, return spring, pushing block and drive plate.

Benefits of technology

The height adjustment of the monitoring device during installation is realized, adapting to different terrain and environments, improving the adaptability of installation and the accuracy of early warning, and reducing transportation volume and cost.

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Abstract

The invention relates to the technical field of disaster monitoring, and discloses a rapid networking construction period geological disaster monitoring device, which comprises a base, a sleeve arranged at the top of the base, a lifting column arranged in the sleeve, and an extension unit arranged in the lifting column, the extension unit comprises a lifting part arranged in the lifting column and a driving part arranged at the bottom of the lifting part; the lifting part comprises lifting grooves symmetrically formed in the inner wall of the lifting column and distributed in a linear array mode, a fixing column arranged at the bottom of the sleeve, a reset spring arranged in the fixing column and a lifting rod arranged at the top of the reset spring. Through the arranged extension unit, the monitoring device can be adjusted to a proper height when the monitoring device is installed, the early warning requirements of different heights and views are met, the installation adaptability is improved, the monitoring device before installation is short and convenient to transport, the size occupied by the monitoring device is reduced, and the transportation cost is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of disaster monitoring, and in particular to a fast-networked construction-period geological disaster monitoring device. Background Art

[0002] The fast-networked construction period geological disaster monitoring device is a geological disaster monitoring device that can be installed and networked in a short time. The main purpose of this device is to timely discover and warn of possible geological disasters to ensure safety during the construction process. The device is usually composed of a wireless communication module, a sensor module, a data processing module, a display module, a power module and a protective shell. The wireless communication module is mainly responsible for remote monitoring and data transmission of the equipment, as well as the function of realizing fast networking. The sensor module is mainly responsible for collecting geological information. Various physical property change information of the soil can be obtained through various sensors buried in designated locations (such as electromagnetic sensors, vibration sensors, temperature sensors, etc.).

[0003] The patent with announcement number CN118430191A discloses a landslide geological disaster monitoring and early warning device, which realizes monitoring at different height angles of the slope and cleans the main monitoring camera lens, ensuring the clarity of the transmitted image. It can also cooperate with drones to detect hidden landslides that cannot be detected by monitors, so that accurate data and landslide conditions can be controlled in real time.

[0004] However, the prior art still has the following defects: 1. The monitoring devices in the prior art are often transported directly to the site during installation. The length of the pole is fixed, and the monitoring device can only be installed at a fixed height during installation. They cannot adapt to environmental changes. Since the poles of the fixed-height landslide monitoring devices cannot be adjusted to a specific terrain environment, they may not be able to accurately detect the risk of landslides in some special terrains and environments. There are also installation restrictions. The poles of the fixed-height landslide monitoring devices must be installed at a predetermined height during installation, which may limit their deployment and usage scenarios. In some special terrains and environments, this height may not be suitable for installing landslide monitoring devices.

[0005] 2. And because the length of the monitoring device pole is fixed, it often takes up a large space during transportation, increasing the transportation cost and lacking flexibility. Since the pole of the fixed-height landslide monitoring device cannot be adjusted to a specific terrain environment, it may not be able to accurately detect the risk of landslides in some special terrains and environments, which may lead to false alarms or missed alarms. Summary of the invention

[0006] In view of the problems in the prior art that the height of the monitoring device cannot be adjusted during installation and the adaptability is poor, a fast networking construction period geological disaster monitoring device is proposed.

[0007] The purpose is to raise the monitoring device to a specified position during installation, so as to facilitate observation and early warning of the monitoring device, improve the adaptability of the installation, and enhance the accuracy of the early warning.

[0008] The technical solution of the present invention is a fast-networked construction period geological disaster monitoring device, comprising a base, a sleeve arranged on the top of the base, a lifting column arranged inside the sleeve, and an extension unit arranged inside the lifting column; The extension unit includes a lifting component disposed inside the lifting column, and a driving component disposed at the bottom of the lifting component; The lifting component is used to lift the lifting column, and the driving component is used to push the lifting component to lift the lifting column; The lifting component includes lifting grooves symmetrically opened on the inner wall of the lifting column and distributed in a linear array, a fixed column arranged at the bottom of the sleeve, a return spring arranged inside the fixed column, a lifting rod arranged at the top of the return spring, a pushing rod arranged at the top of the lifting rod, a pushing block arranged on the pushing rod, a pushing hole opened on one side of the bottom of the pushing block, and the pushing hole is slidably connected to the pushing rod, a fixed rod arranged at the top of the pushing rod, and both sides of the fixed rod are fixedly connected to the inside of the fixed column, abutment rods arranged on both sides of the pushing block, an abutment member arranged on the abutment rod, and a torsion spring arranged between the abutment member and the abutment rod.

[0009] By adopting the above technical solution, the extension unit can be set to adjust the monitoring device to a suitable height when installing the monitoring device, so as to adapt to the early warning requirements of different heights and fields of view, improve the adaptability of the installation, and the monitoring device before installation is shorter, which is convenient for transportation, reducing the volume occupied by the monitoring device and reducing transportation costs. During installation, the driving component is continuously stepped on up and down by the foot, and the driving component continuously moves back and forth up and down, so that the lifting rod located inside the fixed column continuously moves up and down. During the upward movement, the lifting rod moves in the pushing hole through the pushing rod, that is, the pushing rod pushes and squeezes the pushing block, so that the pushing block can swing left and right around the fixed rod. When the pushing block rotates to one side, the pushing block pushes the abutment piece to move upward through the abutment rod, and the abutment piece pushes the lifting groove upward, so that the entire lifting column can move upward in the sleeve. At this time, the abutment piece on the other side slides out of the lifting groove under the action of the torsion spring and slides downward along the lifting groove; when the lifting rod is reset and moved downward, the pushing block is reset and rotated. At this time, the abutment piece on the other side pushes the lifting column to move upward, thereby achieving the effect of continuously pushing the lifting column upward back and forth, thereby achieving adaptive adjustment of the height of the monitoring device.

[0010] Furthermore, the pushing block is triangular in shape, and the pushing hole is parallel to one side of the pushing block.

[0011] By adopting the above technical solution, the pushing block is triangular in shape, so that when the bottom of the pushing block is pushed, its two sides can rotate together to achieve an alternating reciprocating lifting effect. The setting of the two abutment members not only improves the lifting efficiency, but also enhances the stability of the lifting and subsequent support.

[0012] Furthermore, the lifting groove is triangular in shape, and the shape of one side of the abutment piece matches the lifting groove.

[0013] The above technical solution is adopted to facilitate the abutment with the abutment piece to realize the one-way lifting of the lifting column. The arc-shaped abutment piece and the arc-shaped lifting groove are matched to make the contact area between the abutment piece and the lifting groove larger, thereby enhancing the stability during lifting.

[0014] Furthermore, the driving component includes a driving groove opened on one side of the bottom of the lifting rod, a movable hole opened on one side of the bottom of the fixed column and located on one side of the driving groove, a limiting plate arranged on one side of the bottom of the sleeve, a driving plate arranged on the top of the limiting plate, and one end of the driving plate abuts against one side of the driving groove, a through hole opened on one side of the bottom of the lifting column, a rotating shaft arranged on the side of the driving plate away from the lifting rod, a pedal arranged on the rotating shaft, and an abutment plate arranged on one side of the bottom of the pedal, and the top of the abutment plate abuts against one side of the bottom of the driving plate.

[0015] With the above technical solution, the driving component is used to drive the lifting component to push the lifting column to move upward continuously. During installation, by continuously pressing the pedal, the pedal will use the rotating shaft as the abutment point, and the abutment plate at the bottom of the pedal will abut against the bottom of one side of the driving plate, so that the driving plate can rotate around the top of the limit plate, so that the other side of the driving plate can push the lifting rod upward, and the lifting rod stretches the reset spring. When the pedal is not pressed, the lifting rod pushes the driving plate downward under the action of the reset spring. Since the other side of the driving plate abuts against one side of the through hole, the driving plate can remain in a horizontal state, which is convenient for the next step.

[0016] Furthermore, a sliding hole is provided in the middle of one side of the pedal, and the rotating shaft is slidably connected to the sliding hole, and a folding groove for accommodating the pedal is provided at the bottom of the through hole.

[0017] By adopting the above technical solution, when the monitoring device completes the height adjustment, the pedal can be folded to disengage the abutment plate from the abutment on the driving plate, and the pedal can be rotated and folded to a vertical state. The rotating shaft will slide in the sliding hole. Due to the gravity of the pedal, it will naturally fall and be stored in the folding groove, which not only completes the folding and storage of the pedal, but also allows the pedal to block the through hole, thereby preventing rainwater from entering the interior of the monitoring device after the monitoring device is installed and used in the field, causing rust on the internal structure, thereby ensuring the service life of the monitoring device.

[0018] Furthermore, one side of the driving groove is inclined.

[0019] By adopting the above technical solution, one side of the driving groove is arranged to be inclined, so as to facilitate the upward movement of the driving plate when the driving plate rotates.

[0020] Furthermore, the top linear array of the pedal is provided with anti-slip grooves.

[0021] By adopting the above technical solution, the provision of the anti-skid groove facilitates to increase the friction force when the operator steps on it, thereby enhancing the anti-skid function.

[0022] Furthermore, three limit blocks are arranged in a circular array on the side wall at the bottom of the lifting column, and three limit grooves are matchedly provided inside the sleeve for the limit blocks to slide.

[0023] By adopting the above technical solution, when the lifting column is driven to move upward, the three limit blocks slide in the limit grooves, which not only improves the stability during lifting and moving upward, but also prevents the lifting column from separating from the sleeve.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. The extension unit can be set to adjust the monitoring device to a suitable height when installing the monitoring device to meet the early warning requirements of different heights and fields of view, thereby improving the adaptability of the installation. The monitoring device before installation is shorter, which is convenient for transportation, reducing the volume occupied by the monitoring device and reducing transportation costs.

[0025] 2. The pushing block is triangular in shape, so that when the bottom of the pushing block is pushed, its two sides can rotate together to achieve an alternating reciprocating lifting effect. The setting of the two abutment members not only improves the lifting efficiency, but also enhances the stability of the lifting and subsequent support.

[0026] 3. When the monitoring device completes the height adjustment, the pedal can be folded to disengage the abutment plate from the abutment on the driving plate, and the pedal can be rotated and folded to a vertical state. The rotating shaft will slide in the sliding hole. Due to the gravity of the pedal, it will naturally fall and be stored in the folding groove, which not only completes the folding and storage of the pedal, but also allows the pedal to block the through hole, thereby preventing rainwater from entering the interior of the monitoring device after the monitoring device is installed and used in the field, causing rust on the internal structure, thereby ensuring the service life of the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the overall appearance of the present invention; Figure 2 It is a schematic diagram of the internal overall three-dimensional structure of the present invention; Figure 3It is a schematic diagram of the exploded structure of the entire extension unit of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the entire internal front side of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting component of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the driving component of the present invention; Figure 8 It is a schematic diagram of the overall structure of the limiting block and the limiting groove of the present invention.

[0028] In the figure: Base; 2. Sleeve; 3. Lifting column; 4. Lifting slot; 5. Fixed column; 6. Return spring; 7. Lifting rod; 8. Push rod; 9. Push block; 10. Push hole; 11. Fixed rod; 12. Abutment rod; 13. Abutment member; 14. Drive slot; 15. Movable hole; 16. Limit plate; 17. Drive plate; 18. Through hole; 19. Rotating shaft; 20. Pedal; 21. Abutment plate; 22. Sliding hole; 23. Folding slot; 24. Limit block; 25. Limit slot. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1, reference Figure 1-Figure 8, which is the first embodiment of the present invention, provides a fast networking construction period geological disaster monitoring device, including a base 1, a sleeve 2 fixedly connected to the top of the base 1, a lifting column 3 slidably connected to the inside of the sleeve 2, and also includes an extension unit installed in the lifting column 3; the extension unit includes a lifting component installed in the lifting column 3, and a driving component installed at the bottom of the lifting component; the lifting component is used to lift the lifting column 3, and the driving component is used to push the lifting component to lift the lifting column 3; the lifting component includes lifting grooves 4 symmetrically opened on the inner wall of the lifting column 3 and distributed in a linear array, a fixing column 5 fixedly connected to the bottom of the sleeve 2 , a reset spring 6 fixedly connected to the inside of the fixed column 5, a lifting rod 7 fixedly connected to the top of the reset spring 6, a pushing rod 8 fixedly connected to the top of the lifting rod 7, a pushing block 9 slidably connected to the pushing rod 8, a pushing hole 10 opened on one side of the bottom of the pushing block 9, and the pushing hole 10 is slidably connected to the pushing rod 8, a fixed rod 11 rotatably connected to the top of the pushing block 9, and both sides of the fixed rod 11 are fixedly connected to the inside of the fixed column 5, an abutment rod 12 fixedly connected to both sides of the pushing block 9, an abutment member 13 rotatably connected to the abutment rod 12, and a torsion spring (not shown in the figure) installed between the abutment member 13 and the abutment rod 12.

[0031] Specifically, by setting up the extension unit, the monitoring device can be adjusted to a suitable height when installing the monitoring device to meet the warning requirements of different heights and fields of view, thereby improving the adaptability of the installation. In addition, the monitoring device before installation is shorter, which is convenient for transportation, reducing the volume occupied by the monitoring device and reducing transportation costs. When installing, the driving component is continuously stepped on up and down by the foot, and the driving component continuously moves back and forth up and down, so that the lifting rod 7 located inside the fixed column 5 continuously moves up and down. In the process of moving up, the lifting rod 7 moves in the pushing hole 10 through the pushing rod 8, that is, the pushing rod 8 pushes and squeezes the pushing block 9, so that the pushing block 9 can swing left and right around the fixed rod 11. When the pushing block 9 rotates to one side, the pushing block 9 pushes the abutment member 13 to move upward through the abutment rod 12, and the abutment member 13 pushes the lifting groove 4 to move upward, so that the entire lifting column 3 can move up in the sleeve 2. At this time, the abutment member 13 on the other side slides out of the lifting groove 4 under the action of the torsion spring and slides downward along the lifting groove 4; when the lifting rod 7 is reset and moved downward, the pushing block 9 is reset and rotated. At this time, the abutment member 13 on the other side pushes the lifting column 3 to move upward, that is, the effect of continuously pushing the lifting column 3 upward back and forth is achieved, thereby realizing adaptive adjustment of the height of the monitoring device.

[0032] Reference Figure 6 The pushing block 9 is triangular in shape, and the pushing hole 10 is parallel to one side of the pushing block 9 .

[0033] Specifically, the pushing block 9 is triangular in shape, so that when the bottom of the pushing block 9 is pushed, its two sides can rotate together to achieve an alternating reciprocating lifting effect. The provision of the two abutment members 13 not only improves the lifting efficiency, but also enhances the stability of the lifting and subsequent support.

[0034] Reference Figure 1-Figure 4 The lifting groove 4 is triangular in shape, and the shape of one side of the abutment member 13 matches the lifting groove 4 .

[0035] Specifically, it is convenient to abut with the abutment member 13 to realize the one-way lifting of the lifting column 3. The arc-shaped abutment member 13 and the arc-shaped lifting groove 4 match each other so that the contact area between the abutment member 13 and the lifting groove 4 is larger, thereby enhancing the stability during lifting.

[0036] Example 2, reference Figure 1-Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the driving component includes a driving groove 14 opened on one side of the bottom of the lifting rod 7, a movable hole 15 opened on one side of the bottom of the fixing column 5 and located on one side of the driving groove 14, a limiting plate 16 fixedly connected to one side of the bottom of the sleeve 2, a driving plate 17 rotatably connected to the top of the limiting plate 16, and one end of the driving plate 17 abuts against one side of the driving groove 14, a through hole 18 opened on one side of the bottom of the lifting column 3, a rotating shaft 19 fixedly connected to the side of the driving plate 17 away from the lifting rod 7, a pedal 20 rotatably connected to the rotating shaft 19, and an abutting plate 21 fixedly connected to one side of the bottom of the pedal 20, and the top of the abutting plate 21 abuts against one side of the bottom of the driving plate 17.

[0037] Specifically, the driving component is used to drive the lifting component to push the lifting column 3 to move upward continuously. During installation, by continuously stepping on the pedal 20, the pedal 20 will use the rotating shaft 19 as the abutment point, and the abutment plate 21 at the bottom of the pedal 20 will abut against the bottom of one side of the driving plate 17, so that the driving plate 17 can rotate around the top of the limit plate 16, so that the other side of the driving plate 17 can push the lifting rod 7 upward, and the lifting rod 7 stretches the reset spring 6. When the pedal 20 is not stepped on, under the action of the reset spring 6, the lifting rod 7 pushes the driving plate 17 downward. Since the other side of the driving plate 17 abuts against one side of the through hole 18, the driving plate 17 can remain in a horizontal state, which is convenient for the next step.

[0038] Reference Figure 5 A sliding hole 22 is provided in the middle of one side of the pedal 20 , and the rotating shaft 19 is slidably connected to the sliding hole 22 , and a folding groove 23 for accommodating the pedal 20 is provided at the bottom of the through hole 18 .

[0039] Specifically, when the monitoring device completes the height adjustment, the pedal 20 can be folded to disengage the abutment plate 21 from the abutment against the drive plate 17, and the pedal 20 can be rotated and folded into a vertical state. The rotating shaft 19 will slide in the sliding hole 22. Due to the gravity of the pedal 20, it will naturally fall and be stored in the folding groove 23, which not only completes the folding and storage of the pedal 20, but also enables the pedal 20 to block the through hole 18, thereby preventing rainwater from entering the interior of the monitoring device after the monitoring device is installed and used in the field, causing rust on the internal structure, thereby ensuring the service life of the monitoring device.

[0040] Reference Figure 7 , one side of the driving groove 14 is inclined.

[0041] Specifically, one side of the driving slot 14 is arranged to be inclined, so as to facilitate the upward movement of the driving plate 17 when the driving plate 17 rotates.

[0042] Reference Figure 7 The top linear array of the pedal 20 is provided with an anti-slip groove.

[0043] Specifically, the provision of the anti-skid groove facilitates increasing the friction force when the operator steps on it, thereby enhancing the anti-skid function.

[0044] Reference Figure 8 The side wall of the bottom of the lifting column 3 is fixedly connected with three limit blocks 24 in an annular array, and the sleeve 2 is matched with three limit grooves 25 for the limit blocks 24 to slide.

[0045] Specifically, when the lifting column 3 is driven to move upward, the three limit blocks 24 slide in the limit grooves 25, which not only improves the stability during lifting and moving upward, but also prevents the lifting column 3 from being separated from the sleeve 2. The rest of the structure is the same as that of the first embodiment.

[0046] Based on Examples 1-2, the working principle of the present invention is as follows: in the initial state, the lifting column 3 is retracted inside the sleeve 2. During installation, the operator continuously presses the pedal 20 so that the pedal 20 abuts against the drive plate 17, causing them to rotate downward together. At this time, the other end of the drive plate 17 pushes the lifting rod 7 upward, and the lifting rod 7 drives the pushing block 9 to reciprocate through the pushing rod 8 at its top, so that the abutting members 13 on both sides can continuously and alternately abut against the lifting slot 4, thereby continuously pushing the lifting column 3 upward and achieving the height adjustment effect of the monitoring device.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fast-networked construction-period geological disaster monitoring device, comprising a base (1), a sleeve (2) disposed on the top of the base (1), and a lifting column (3) disposed inside the sleeve (2), characterized in that: It also includes an extension unit arranged inside the lifting column (3); The extension unit comprises a lifting component arranged inside the lifting column (3), and a driving component arranged at the bottom of the lifting component; The lifting component is used to lift the lifting column (3), and the driving component is used to push the lifting component to lift the lifting column (3); The lifting component comprises lifting grooves (4) symmetrically arranged on the inner wall of the lifting column (3) and distributed in a linear array, a fixed column (5) arranged at the bottom of the sleeve (2), a return spring (6) arranged inside the fixed column (5), a lifting rod (7) arranged at the top of the return spring (6), a pushing rod (8) arranged at the top of the lifting rod (7), a pushing block (9) arranged on the pushing rod (8), a pushing hole (10) arranged on one side of the bottom of the pushing block (9), and the pushing hole (10) is slidably connected to the pushing rod (8), a fixed rod (11) arranged at the top of the pushing block (9), and both sides of the fixed rod (11) are fixedly connected to the inside of the fixed column (5), abutment rods (12) arranged on both sides of the pushing block (9), abutment members (13) arranged on the abutment rods (12), and a torsion spring arranged between the abutment members (13) and the abutment rods (12).

2. The rapid networking construction period geological disaster monitoring device according to claim 1 is characterized by: The pushing block (9) is triangular in shape, and the pushing hole (10) is parallel to one side of the pushing block (9).

3. The rapid networking construction period geological disaster monitoring device according to claim 1 is characterized by: The lifting groove (4) is triangular in shape, and the shape of one side of the abutment piece (13) matches the lifting groove (4).

4. The rapid networking construction period geological disaster monitoring device according to claim 1 is characterized by: The driving component comprises a driving groove (14) provided at one side of the bottom of the lifting rod (7), a movable hole (15) provided at one side of the bottom of the fixing column (5) and located at one side of the driving groove (14), a limiting plate (16) provided at one side of the bottom of the sleeve (2), a driving plate (17) provided at the top of the limiting plate (16), one end of the driving plate (17) abutting against one side of the driving groove (14), a through hole (18) provided at one side of the bottom of the lifting column (3), a rotating shaft (19) provided at a side of the driving plate (17) away from the lifting rod (7), a pedal (20) provided on the rotating shaft (19), and an abutting plate (21) provided at one side of the bottom of the pedal (20), the top of the abutting plate (21) abutting against one side of the bottom of the driving plate (17).

5. The rapid networking construction period geological disaster monitoring device according to claim 4 is characterized in that: A sliding hole (22) is provided in the middle of one side of the pedal (20), and the rotating shaft (19) is slidably connected to the sliding hole (22). A folding groove (23) for accommodating the pedal (20) is provided at the bottom of the through hole (18).

6. The rapid networking construction period geological disaster monitoring device according to claim 5 is characterized by: One side of the driving groove (14) is inclined.

7. The rapid networking construction period geological disaster monitoring device according to claim 6 is characterized by: The top linear array of the pedal (20) is provided with anti-slip grooves.

8. The rapid networking construction period geological disaster monitoring device according to claim 1 is characterized by: The side wall at the bottom of the lifting column (3) is provided with three limit blocks (24) in an annular array, and the interior of the sleeve (2) is matched with three limit grooves (25) for the limit blocks (24) to slide.

Citation Information

Patent Citations

  • Landslide geological disaster monitoring and early warning device

    CN118430191A