Stay cable ice frost damage treatment device based on unmanned aerial vehicle accompanying flight

Abstract

The utility model relates to a stay cable ice frost damage treatment device based on unmanned aerial vehicle accompanying flight, which comprises an unmanned aerial vehicle, a traction cable and an ice removal device, and the ice removal device comprises a left limb arm, a right limb arm, a central pin hole, a passive reset rod and an active telescopic rod; the top of the left limb arm and the top of the right limb arm are hinged through a central pin hole, the middle of the left limb arm and the middle of the right limb arm are connected through a passive reset rod, and the lower portion of the left limb arm and the lower portion of the right limb arm are connected through an active telescopic rod. The device is easy to mount and dismount, has the telescopic characteristic, and can comprehensively deal with the problems of jamming due to over-slow speed reduction, over-fast speed reduction, overlarge impact force and the like possibly encountered during high-altitude ice removal of the stay cable.

Description

Technical Field

[0001] This utility model relates to the fields of urban snow and ice disaster prevention, high-altitude operations, and bridge maintenance. More specifically, it relates to a device for treating ice and frost damage to cable-stayed bridges based on drone-assisted flight. Background Technology

[0002] When strong cold air moves southward and encounters warm, moist air currents, the near-surface temperature drops sharply below freezing. The moist, warm air is lifted into clouds, causing rain. While the raindrops remain liquid in the air, they freeze rapidly upon reaching the ground, easily forming icicles on structural surfaces. These icicles differ from those formed by prolonged freezing in northern regions. During sudden freezing rain, the icicles solidify extremely quickly, forming several tens of centimeters in length overnight. However, these icicles are relatively weak and easily melt and detach due to warming temperatures. When they melt and fall at cable-stayed bridges, they are accompanied by crosswinds, posing a significant hazard and seriously endangering the safety of vehicles and pedestrians on the bridge. Preventing icing damage to large bridge cable-stayed bridges has become another severe challenge for the operation and maintenance of transportation infrastructure. Currently, technologies for preventing and controlling icing damage to cable-stayed bridges have not received sufficient attention. Due to the instantaneous formation of icicles, early detection is difficult. Once icicles are detected, measures must be taken immediately to remove them. Current technologies primarily focus on the remediation of icing damage.

[0003] Existing methods for dealing with ice and frost damage generally fall into two categories: manual and non-manual methods. Non-manual methods often employ gravity-based de-icing equipment, but this equipment must be installed at the top of the cable tower, resulting in low efficiency. Furthermore, gravity-based collision de-icing devices utilize conventional materials such as chains and ropes, limiting design flexibility. On the other hand, with the continuous improvement of drone carrying capacity and control technology, drones are now widely used in fire prevention and disaster relief, wide-area rescue, and high-altitude operations, and their portability and flexible flight capabilities still have significant room for expansion. In summary, short-term, instantaneous ice and frost damage easily forms on the cables of large bridges, and melting ice and frost will seriously endanger the safety of urban commuters. Existing ice removal methods are time-consuming and labor-intensive, involve high-altitude operations with significant risks and difficulties, and are generally ineffective. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cable-stayed bridge ice damage control device based on drone accompaniment. It can be easily installed and disassembled by drone accompaniment, and can not only remove ice in a short time and efficiently, but also protect the cable-stayed bridge from damage to the greatest extent.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: Constructing a cable-stayed bridge ice damage control device based on drone accompaniment, including a drone, a traction cable and an ice removal device. One end of the traction cable is connected to the drone, and the other end of the traction cable is connected to the ice removal device. The ice removal device includes a left arm, a right arm, a central pin hole, a passive reset rod and an active telescopic rod. The tops of the left arm and the right arm are hinged through the central pin hole, the middle parts of the left arm and the right arm are connected through the passive reset rod, and the lower parts of the left arm and the right arm are connected through the active telescopic rod.

[0006] According to the above scheme, the left limb arm includes a handle and a clamping part. The clamping part is arc-shaped, and the top of the clamping part is provided with staggered biting holes. The arc-shaped part of the clamping part is provided with two assembly holes, and a stiffening rib is provided between the two assembly holes. The bottom of the clamping part is provided with an anti-detachment baffle. The handle is provided with two vertical elliptical holes. The right limb arm is symmetrically arranged with the left limb arm.

[0007] According to the above scheme, the passive reset rod includes a first fastening nut, a reset spring, a first long screw, and a first wrapping soft pad; the first long screw has a first wrapping soft pad in the middle, reset springs are provided on both sides of the first wrapping soft pad, and a first fastening nut is provided on the outside of the reset spring, and the first fastening nut is located at both ends of the first long screw.

[0008] According to the above scheme, the active telescopic rod includes a second fastening nut, a reset soft spring, a second long screw, and a second wrapping soft pad; the second long screw has a second wrapping soft pad in the middle, reset soft springs are provided on both sides of the second wrapping soft pad, and a second fastening nut is provided on the outside of the reset soft spring, and the second fastening nut is located at both ends of the second long screw.

[0009] According to the above scheme, the cross-section of the stay cable is circular.

[0010] According to the above scheme, the diameter of the stay cable is 100-200mm.

[0011] According to the above scheme, the inclination angle of the stay cable is 40°-70°.

[0012] This utility model also provides an installation method for a cable-stayed bridge ice damage control device based on drone accompaniment, including the following steps:

[0013] S1. After aligning the staggered bite holes of the right limb arm and the staggered bite holes of the left limb arm, the right limb arm and the left limb arm are hinged through the central pin hole, and the right limb arm and the left limb arm can rotate around the central pin hole.

[0014] S2. The anti-detachment baffle of the right arm and the anti-detachment baffle of the left arm overlap. The right arm and the left arm are inserted into the first long screw and the second long screw in sequence through the vertical elliptical hole. A reset spring is sleeved on both sides of the first long screw and a reset soft spring is sleeved on both sides of the second long screw. A first wrapping soft pad is added to the outermost periphery of the central area of ​​the first long screw and a second wrapping soft pad is added to the outermost periphery of the central area of ​​the second long screw.

[0015] S3. First fastening nuts are provided at both ends of the first long screw, and second fastening nuts are provided at both ends of the second long screw.

[0016] The cable-stayed bridge ice damage control device based on UAV accompaniment of this utility model has the following advantages:

[0017] Beneficial effects:

[0018] 1. This utility model uses a drone to pull a climbing cable, which can greatly improve the accessibility and turnover efficiency of de-icing equipment, greatly reduce labor costs and the number of operators, and improve the safety of high-altitude operations.

[0019] 2. The de-icing equipment of this utility model is lightweight and occupies little space. It can be installed and disassembled on the bridge deck, making it highly portable. Furthermore, multiple units can be assembled to change its weight, making it highly adaptable to various application scenarios. It has multiple collision points and two de-icing procedures: climbing and sliding, which can ensure high-quality completion of ice removal on the cable-stayed bridge. It also has an active (electrically controlled) telescopic device, which can remotely expand the hole for self-rescue in case of adverse working conditions such as high-altitude jamming, and has extremely strong application scalability.

[0020] 3. The technical means and ice removal process of this utility model can completely replace the traditional inefficient, low-quality and high-risk cable-stayed bridge ice removal measures. It is quick to respond, flexible in operation and convenient in turnover. It can also be extended to the treatment of ice damage on other long-span bridges such as suspension bridges, and can also be applied to other infrastructure and building construction ice damage treatment fields, with broad application prospects. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the cable-stayed bridge ice damage control device based on drone accompaniment according to this utility model;

[0023] Figure 2 This is a schematic diagram of the passive reset rod of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the active telescopic rod of this utility model;

[0025] Figure 4This is a schematic diagram of the structure of the left arm of this utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure of the cable-stayed bridge ice and frost damage control device with drone accompaniment according to this utility model;

[0027] In the diagram: 1. Right arm, 2. Left arm, 3. Central pin hole, 4. Passive reset rod, 5. Active telescopic rod, 6. Interlocking bite holes, 7. Assembly hole, 8. Stiffening rib, 9. Anti-detachment baffle, 10. Vertical oval hole, 11. First fastening nut, 12. Reset spring, 13. First long screw, 14. Reset soft spring, 15. First wrapping pad, 16. Second fastening nut, 17. Second long screw, 18. Second wrapping pad. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] like Figure 1-5 As shown, this utility model discloses a cable-stayed bridge ice damage control device based on drone escort, comprising a drone, a traction cable, and an ice removal device. One end of the traction cable is connected to the drone, and the other end is connected to the ice removal device. The ice damage control device includes a left arm 2, a right arm 1, a central pin hole 3, a passive reset rod 4, and an active telescopic rod 5. The tops of the left arm 2 and the right arm 1 are hinged through the central pin hole 3, the middle parts of the left arm 2 and the right arm 1 are connected through the passive reset rod 4, and the lower parts of the left arm 2 and the right arm 1 are connected through the active telescopic rod 5.

[0030] Drones can tow de-icing equipment to a designated position at the top of the cable-stayed bridge. After release, the de-icing equipment is guided by gravity to slide down quickly and remove ice from various parts of the cable-stayed bridge, greatly improving the efficiency and safety of high-altitude de-icing operations.

[0031] The left limb arm 2 includes a handle and a clamping part. The clamping part is arc-shaped, with staggered biting holes 6 at the top and two mounting holes 7 at the arc of the clamping part. A stiffening rib 8 is provided between the two mounting holes 7. An anti-disengagement baffle 9 is provided at the bottom of the clamping part. Two vertical oval holes 10 are provided on the handle. The right limb arm 1 is symmetrically arranged with the left limb arm 2. The passive reset rod 4 includes a first fastening nut 11, a reset spring 12, a first long screw 13, and a first wrapping soft pad 15. The first long screw 13 has the first wrapping soft pad 15 in the middle, and the reset springs 12 are provided on both sides of the first wrapping soft pad 15. The first fastening nut 11 is provided on the outside of the reset springs 12, and the first fastening nut 11 is located at both ends of the first long screw 13. The active telescopic rod 5 includes a second fastening nut 16, a return soft spring 14, a second long screw 17, and a second wrapping soft pad 18; the second long screw 17 has a second wrapping soft pad 18 in the middle, the second wrapping soft pad 18 has return soft springs 14 on both sides, the return soft springs 14 have a second fastening nut 16 on the outside of the return soft springs 14, and the second fastening nut 16 is located at both ends of the second long screw 17.

[0032] This utility model also provides an installation method for a cable-stayed bridge ice damage control device based on drone accompaniment, including the following steps:

[0033] S1. After aligning the interlocking holes 6 of the right limb arm 1 and the interlocking holes 6 of the left limb arm 2, the right limb arm 1 and the left limb arm 2 are hinged through the central pin hole 3, and the right limb arm 1 and the left limb arm 2 can rotate around the central pin hole 3.

[0034] S2. The anti-detachment baffle 9 of the right arm 1 and the anti-detachment baffle 9 of the left arm 2 partially overlap. The right arm 1 and the left arm 2 are inserted into the first long screw 13 and the second long screw 17 in sequence through the vertical elliptical hole 10. The return spring 12 is sleeved on both sides of the first long screw 13, and the return soft spring 14 is sleeved on both sides of the second long screw 17. The first wrapping soft pad 15 is added to the outermost part of the central area of ​​the first long screw 13, and the second wrapping soft pad 18 is added to the outermost part of the central area of ​​the second long screw 17.

[0035] S3. First fastening nuts 11 are provided at both ends of the first long screw 13, and second fastening nuts 16 are provided at both ends of the second long screw 17.

[0036] The working principle of this utility model:

[0037] The cable-stayed bridge has a circular cross-section with a diameter ranging from 100 to 200 mm, and it has a certain inclination angle, ranging from 40° to 70°. The cable-stayed bridge ice damage control device can be installed on the bridge deck. During installation, firstly, the left arm 2 and right arm 1 are connected through the central pin hole 3. Then, the anti-detachment baffles 9 of the left arm 2 and right arm 1 are opened by rotating through the central pin hole 3, allowing the cable-stayed bridge to be inserted through the opening. The device is then rotated back until the anti-detachment baffles 9 of the left arm 2 and right arm 1 overlap and close. Finally, the passive reset rod 4 and the active telescopic rod 5 and their components are inserted, and then tightened using the first fastening nut 11 and the second fastening nut 16. At this point, due to the influence of the center of gravity of the cable-stayed bridge ice damage control device, the side with the central pin hole 3 suspended on the cable-stayed bridge faces upwards, while the side with the passive reset rod 4 and active telescopic rod 5 inserted faces downwards.

[0038] After the equipment is installed, the traction cable is inserted into the hole in the central pin hole 3. The other side of the traction cable is connected to a drone, which flies upward to perform initial ice removal. During the ice removal process, the anti-detachment baffle 9, the passive reset rod 4, and the active telescopic rod 5 can all collide with different depth points of the ice. When the ice removal equipment moves upward along the cable to the vicinity of the high-altitude cable head, the traction cable is released. The ice removal equipment slides down the cable under its own weight to perform secondary fine ice removal. A buffer pad is set at the installation location. Finally, the ice removal equipment is dismantled and retrieved.

[0039] If the de-icing equipment experiences excessively slow gliding speed during its ascent and descent along the cable-stayed bridge, the remotely controlled active telescopic rod 5 can extend, increasing the inner diameter of the equipment and allowing it to bypass obstacles. After the active telescopic rod 5 retracts, the return spring 12 restores the equipment to its initial installation state. The de-icing equipment can also be stacked using the mounting holes 7 to increase its mass, which, within the weight limits of the accompanying drone, prevents jamming.

[0040] The ice removal equipment for long-span bridge cables described in this utility model can vary in component size and model according to the functional requirements of ice removal and the different cross-sectional dimensions of the cables. This utility model reserves the right to modify its material properties, dimensions, cross-sectional parameters, etc. This utility model includes a technical solution for using drones to enable the device to climb the cables. The described cable-stayed bridge ice removal equipment can be implemented through other technologies or solutions (excluding drone-assisted flight technology), and the right to replace, expand, and combine its cable-climbing implementation method is reserved. The cable-stayed bridge ice removal equipment described in this utility model can be applied to other types of long-span bridges and other structural components prone to ice formation, and the right to expand and develop its application scenarios is reserved.

[0041] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A device for controlling ice and frost damage on cable-stayed bridges based on drone-assisted flight, comprising a drone, a traction cable, and an ice removal device, wherein one end of the traction cable is connected to the drone, and the other end of the traction cable is connected to the ice removal device, characterized in that, The ice removal device includes a left arm, a right arm, a central pin hole, a passive reset rod, and an active telescopic rod; the tops of the left and right arms are hinged through the central pin hole, the middle parts of the left and right arms are connected through the passive reset rod, and the lower parts of the left and right arms are connected through the active telescopic rod.

2. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 1, characterized in that, The left limb arm includes a handle and a clamping part. The clamping part is arc-shaped and has staggered biting holes at the top. The arc-shaped part of the clamping part has two mounting holes, and a stiffening rib is provided between the two mounting holes. The bottom of the clamping part has an anti-detachment baffle. The handle has two vertical oval holes. The right limb arm is symmetrically arranged with the left limb arm.

3. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 1, characterized in that, The passive reset rod includes a first fastening nut, a reset spring, a first long screw, and a first wrapping soft pad; the first long screw has a first wrapping soft pad in the middle, reset springs are provided on both sides of the first wrapping soft pad, and the first fastening nut is provided on the outside of the reset spring, with the first fastening nut located at both ends of the first long screw.

4. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 3, characterized in that, The active telescopic rod includes a second fastening nut, a reset soft spring, a second long screw, and a second wrapping soft pad; the second long screw has a second wrapping soft pad in the middle, reset soft springs are provided on both sides of the second wrapping soft pad, and a second fastening nut is provided on the outside of the reset soft spring, with the second fastening nut located at both ends of the second long screw.

5. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 1, characterized in that, The cross-section of the cable is circular.

6. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 1, characterized in that, The diameter of the stay cable is 100-200mm.

7. The cable-stayed bridge ice damage control device based on UAV accompaniment as described in claim 1, characterized in that, The inclination angle of the stay cable is 40°-70°.

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