Double-module stay cable detection device

Abstract

The utility model belongs to the field of stay cables, and provides a double-module stay cable detection device which comprises a flying mechanism, a locking mechanism, a detection mechanism and a winder, the flying mechanism moves above the detection mechanism, and a plurality of guide wheels which are annularly distributed at equal intervals are arranged on the flying mechanism and the detection mechanism. The guide wheels are used for guiding the flight mechanism and the detection mechanism to move in the axis direction of the stay cable. Compared with the prior art, the unmanned aerial vehicle has the advantages that a traditional wheel type climbing mode is replaced by the unmanned aerial vehicle, abrasion or damage to the surface of a bridge stay cable is effectively avoided, and the service life of equipment is prolonged; meanwhile, the holding arm is matched with the locking force of the inhaul cable, and the stability of the detection mechanism in the whole climbing process is ensured in combination with a detection mode of first-up and second-up, so that detection data with higher resolution can be obtained, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable-stayed bridges, specifically relating to a dual-module cable-stayed bridge detection device. Background Technology

[0002] With the increasing complexity and service life of modern bridge structures, the health of stay cables, as critical load-bearing components, directly affects the safety and stability of the entire bridge. Traditional stay cable inspection equipment typically employs wheeled or tracked climbing machinery, which suffers from several significant drawbacks during operation:

[0003] 1. Wear on the surface of the cable: Traditional wheel-type climbing method requires friction to move, which can easily cause scratches or wear on the surface of the cable. Long-term use may damage the protective layer and even affect the internal structure of the steel cable, shortening the actual service life of the cable.

[0004] 2. Poor adaptability to complex environments: Wheel-type climbing equipment may encounter insurmountable technical obstacles when facing cable-stayed structures of different diameters, shapes, or damage. For example, if the cable-stayed structure is partially deformed or entangled, the wheels may not be able to pass smoothly, leading to the interruption or failure of the inspection task.

[0005] 3. Low operating efficiency: These devices are often large and heavy, which not only makes installation time-consuming and labor-intensive, but also results in slow speed and poor flexibility in actual operation. For continuous testing tasks involving long distances or multiple stay cables, the efficiency is extremely low. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a dual-module cable-stayed cable detection device that is simple in structure, has good stability, avoids damage to the cable-stayed cables, and improves climbing efficiency.

[0007] The objective of this utility model can be achieved through the following technical solution: a dual-module cable-stayed bridge detection device is proposed, comprising a flight mechanism, a locking mechanism, a detection mechanism, and a cable reel, wherein:

[0008] The flight mechanism moves above the detection mechanism. Both the flight mechanism and the detection mechanism are provided with a number of guide wheels that are equidistantly distributed in a ring. The guide wheels are used to guide the flight mechanism and the detection mechanism to move along the axial direction of the cable.

[0009] The locking mechanism has a clamping arm that can switch between an unlocked state and a clamped state of the flight mechanism. The clamping arm is used to clamp onto the outer wall of the cable to restrict the movement of the flight mechanism relative to the cable.

[0010] The cable reel is mounted on the detection mechanism, and the cable on the cable reel is connected to the clamping arm so that when the cable reel takes up the cable, it provides a locking force to the clamping arm on the stay cable and drives the detection mechanism to move along the axis of the stay cable.

[0011] When the clamping arm is in the unlocked state, the flight mechanism can be raised along the axis of the cable, and when the clamping arm switches to the clamping state, the cable reel can pull the detection mechanism to the required working position.

[0012] In the aforementioned dual-module cable-stayed bridge detection device, the clamping arm includes a connecting block and a locking block arranged at an angle. The connecting block is used to connect the cable on the reel. The locking block and the connecting block are movably hinged to the flight mechanism. The end of the locking block away from the connecting block is connected to a gripper, and the gripper movably clamps onto the cable-stayed bridge.

[0013] In the aforementioned dual-module cable-stayed bridge detection device, both the detection mechanism and the flight mechanism are detachably connected to a mounting base. An elastic element is provided inside the mounting base, and the guide wheel extends movably into the mounting base and is connected to the elastic element.

[0014] In the aforementioned dual-module cable-stayed bridge detection device, the locking mechanism includes:

[0015] An electric push rod and a connecting rod arranged at an angle are mounted on the flight mechanism. The output end of the electric push rod is connected to the connecting rod to drive the connecting rod to rotate relative to the flight mechanism.

[0016] A connecting shaft is movably connected to the clamping arm, and both ends of the connecting shaft can be detachably connected to mounting sleeves;

[0017] The telescopic rod and the telescopic spring are provided. One end of the telescopic rod is connected to the common connection point of the electric push rod and the connecting rod, and the other end extends movably into the mounting sleeve. The telescopic spring is sleeved on the telescopic rod and abuts against the mounting sleeve and the common connection point of the electric push rod and the connecting rod, respectively.

[0018] In the aforementioned dual-module cable-stayed bridge detection device, the sidewall of the connecting block has an extension, and an unlocking spring connects the flight mechanism to the extension.

[0019] In the aforementioned dual-module cable-stayed bridge detection device, the flight mechanism includes a body, an extension arm, and a rotor. The connection between the connecting block and the locking block is movably hinged to the body. The extension arms are symmetrically distributed on the body, and each extension arm is equipped with a rotor at its end.

[0020] In the aforementioned dual-module cable-stayed bridge detection device, the locking mechanism further includes:

[0021] The driving component is mounted on the machine body;

[0022] The active winding post and the driven winding post are connected to the output end of the drive unit, and the driven winding post is movably connected to the machine body. A clamping rope is connected to the active winding post and the driven winding post.

[0023] A limiting slider is connected to the locking block, and a connecting ring is formed on the limiting slider. The clamping rope passes through the connecting ring so that when the clamping rope is tightened, the clamping claw can press against the inclined cable.

[0024] In the aforementioned dual-module cable-stayed bridge testing device, the testing mechanism includes a support block and a power supply. The cable reel is mounted on the support block, which is used for mounting the testing equipment. The power supply is used to provide power for the rotor to lift the body.

[0025] In the aforementioned dual-module cable-stayed bridge detection device, the cable reel includes:

[0026] The housing is equipped with parallel guide rods and lead screws;

[0027] The system includes a driving bevel gear, a driving spur gear, and a driven spur gear. The driving bevel gear is connected to the output end of the drive motor. The driving spur gear is mounted on the guide rod and coaxially connected to the driven bevel gear. The driven spur gear is mounted on the lead screw and is movably meshed with the driving spur gear.

[0028] A take-up frame is sleeved on the guide rod and movably connected to the lead screw. The take-up frame is connected to the cable, so that when the lead screw rotates, it can be converted into the linear motion of the take-up frame, so as to realize the take-up or release of the cable.

[0029] In the aforementioned dual-module cable-stayed bridge detection device, both the bearing block and the body are composed of a first main body and a second main body, and the connection between the first main body and the second main body can be locked and fixed by a locking pin.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The present invention provides a dual-module cable-stayed bridge inspection device that uses drones instead of the traditional wheel-type climbing method, which effectively avoids wear or damage to the surface of the cable-stayed bridge and extends the service life of the equipment. At the same time, the clamping arm, in conjunction with the cable's locking force and the "first up, then up" inspection mode, ensures the stability of the inspection mechanism throughout the climbing process, which helps to obtain higher resolution inspection data and improve the accuracy of the inspection results.

[0032] (2) The unlocking spring can drive the claw away from the cable without applying a clamping rope, so as to quickly realize the release and unlocking function, with fast response speed and improved operation efficiency.

[0033] (3) The first main body and the second main body are fixedly connected by a locking pin structure, which not only facilitates the processing and manufacturing of the structure, but also helps to fit the flight mechanism onto the cable, improves the convenience of assembly, and greatly improves the work efficiency during operation. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this application;

[0035] Figure 2 This is a schematic diagram of the installation structure of the flight mechanism and the locking mechanism;

[0036] Figure 3 This is a schematic diagram of the installation structure of the guide wheels on the machine body;

[0037] Figure 4 yes Figure 3 Schematic diagram of the cross section at point AA;

[0038] Figure 5 This is a schematic diagram of the cable reel;

[0039] Figure 6 This is a schematic diagram of the locking mechanism in Embodiment 2.

[0040] In the diagram, 1 is the flight mechanism; 10 is the fuselage; 100 is the first main body; 101 is the second main body; 102 is the locking pin; 11 is the extension arm; and 12 is the rotor.

[0041] 2. Locking mechanism; 20. Clamping arm; 200. Connecting block; 200a. Extension; 201. Locking block; 202. Claw; 21. Unlocking spring; 22. Driving component; 23. Active winding post; 24. Driven winding post; 25. Clamping rope; 26. Limiting slider; 260. Connecting ring; 270. Electric push rod; 271. Connecting rod; 272. Connecting shaft; 273. Mounting sleeve; 274. Telescopic rod; 275. Telescopic spring;

[0042] 3. Testing facility; 30. Support block; 31. Power supply;

[0043] 4. Winding reel; 40. Housing; 41. Guide rod; 42. Lead screw; 43. Driving bevel gear; 44. Driving spur gear; 45. Driven spur gear; 46. Driven bevel gear; 47. Take-up frame; 48. Cable;

[0044] 50. Guide wheel; 51. Mounting base; 52. Elastic element. Detailed Implementation

[0045] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0047] Example 1:

[0048] like Figures 1 to 5 As shown, this utility model discloses a dual-module cable-stayed bridge 48 detection device, which includes a flight mechanism 1, a locking mechanism 2, a detection mechanism 3, and a cable reel 4.

[0049] Specifically, the flight mechanism 1 moves above the detection mechanism 3. Both the flight mechanism 1 and the detection mechanism 3 are equipped with a number of guide wheels 50 distributed in a ring at equal intervals. The guide wheels 50 are used to guide the flight mechanism 1 and the detection mechanism 3 to move along the axis of the cable 48. The locking mechanism 2 has a clamping arm 20 that can switch between the unlocked state and the clamping state of the flight mechanism 1. The clamping arm 20 is used to clamp onto the outer wall of the cable 48 to limit the movement of the flight mechanism 1 relative to the cable 48. The mechanism 1 is activated; the cable reel 4 is mounted on the detection mechanism 3, and the cable 48 on the cable reel 4 is connected to the clamping arm 20 so that when the cable reel 4 retracts the cable 48, it provides a locking force to the clamping arm 20 on the inclined cable 48 and drives the detection mechanism 3 to move along the axis of the inclined cable 48; when the clamping arm 20 is in the unlocked state, the flight mechanism 1 can be raised along the axis of the inclined cable 48, and when the clamping arm 20 switches to the clamping state, the cable reel 4 can pull the detection mechanism 3 to the required working position.

[0050] like Figures 1 to 5As shown, this embodiment uses the climbing mechanism 1 to replace the traditional wheel-type climbing method. Specifically, before starting the operation, the clamping arm 20 is in the unlocked state, so that when the device is fitted onto the cable 48, the clamping arm 20 and the cable 48 are in a non-contact state, ensuring that the clamping arm 20 will not collide with the cable 48 due to positional interference during the installation process. As the flying mechanism 1 moves along... Figure 1 During the ascent to the preset height or target detection position, the cable 48 on the reel 4 is always in the released state. That is to say, the detection mechanism 3 and its cable reel 4 will not rise with the flight mechanism 1. This also causes a certain height difference to gradually exist between the two. After the flight mechanism 1 reaches the predetermined height, the locking mechanism 2 can drive the clamping arm 20 to rotate relative to the flight mechanism 1 from the unlocked state and switch to the clamping state. As a result, the clamping arm 20 gradually presses against the outer periphery of the inclined cable 48, so that the clamping arm 20 can withstand a large reverse pull after clamping, providing a support base for the subsequent movement of the detection mechanism 3. At this time, the detection mechanism 3 controls the length of the cable 48 through the cable reel 4. With the flight mechanism 1 locked, the cable 48 moves closer to the flight mechanism 1 along its axis (i.e., the cable 48 is gradually retracted to shorten the distance between the detection mechanism 3 and the flight mechanism 1). During this process, the cable 48 being retracted by the cable reel 4 will inevitably apply a certain tension force to the clamping arm 20 again, further enhancing the clamping force of the clamping arm 20 on the cable 48. This also ensures the stability of the detection mechanism 3 during its ascent, helping to improve detection accuracy and thus guarantee detection quality. It should be noted that when the detection mechanism 3 and the flight mechanism 1 move relative to the cable 48, they both use guide wheels 50 to surround the cable 48 to ensure smooth operation. Therefore, compared to the traditional wheel-type climbing method, this structure avoids damage to the cable 48 structure. Furthermore, the "first up, then up" detection mode ensures the stability of the detection mechanism 3 throughout the climbing process, helping to obtain higher resolution detection data and improve the accuracy of the detection results.

[0051] The clamping arm 20 includes a connecting block 200 and a locking block 201 arranged at an angle. The connecting block 200 is used to connect the cable 48 on the reel 4. The locking block 201 and the connecting block 200 are movably hinged to the flight mechanism 1. The end of the locking block 201 away from the connecting block 200 is connected to a gripper 202, which movably clamps onto the inclined cable 48.

[0052] like Figure 1 and Figure 2 As shown, the clamping arm 20 in this embodiment consists of two parts: a connecting block 200 and a locking block 201. When the clamping arm 20 is in the unlocked state, the connecting block 200 and the locking block 201 are respectively located at... Figure 2The vertical sides allow the locking block 201 to be positioned away from the stay cable 48, facilitating better installation of the flight mechanism 1. As the locking mechanism 2 engages the locking block 201 with the stay cable 48, a clamping force is generated, ensuring the stability of the flight mechanism 1 in the required position. It should be noted that when the clamping arm 20 is in the clamping state, the connecting block 200 and the locking block 201 are also distributed on... Figure 2 On both sides in the vertical direction (not shown in the figure), when the reel 4 retracts the cable 48, the cable 48 will inevitably exert a downward reaction force on the connecting block 200, thereby causing the... Figure 2 Vertical left connecting block 200 along Figure 2 Rotating counterclockwise eventually causes the locking block 201 to further enhance the clamping force applied to the stay cable 48.

[0053] Preferably, such as Figure 2 As shown, the locking block 201 is also connected to a movable gripper 202 that fits snugly against the outer wall of the stay cable 48. Since this embodiment uses three gripping arms 20 arranged in a ring, each gripper 202 preferably adopts an arc-shaped structure design, so that when the three grippers 202 move closer or further apart, they can adapt to different stay cables 48. Friction strips can be added to the grippers 202 to enhance the clamping force applied by the grippers 202 to the stay cable 48, ensuring the overall stability of the flight mechanism 1 and the gripping arms 20 after fixing.

[0054] The locking mechanism 2 also includes: a driving member 22, which is mounted on the body 10; an active winding post 23 and a driven winding post 24, wherein the active winding post 23 is connected to the output end of the driving member 22 and the driven winding post 24 is movably connected to the body 10, and a clamping rope 25 is connected to the active winding post 23 and the driven winding post 24; and a limiting slider 26, which is connected to the locking block 201, wherein a connecting ring 260 is formed on the limiting slider 26, and the clamping rope 25 passes through the connecting ring 260 so that when the clamping rope 25 is tightened, the clamping claw 202 can be pressed against the inclined cable 48.

[0055] like Figure 2 As shown, when the flight mechanism 1 drives the locking mechanism 2 to rise to the required height, the control system activates the drive component 22 and drives the active winding column 23 to rotate. At this time, the clamping rope 25 gradually tightens, thereby pulling the limit slider 26 to drive the locking block 201 to move synchronously (i.e., drive the locking block 201 along the...). Figure 2Rotate counterclockwise until the locking block 201 drives the gripper 202 to approach and adhere to the outer wall of the stay cable 48. In other words, the gripping force of the gripper 202 on the stay cable 48 mainly relies on the tightening force applied to the locking block 201 by the gripping rope 25. The entire rope transmission structure is lightweight and flexible, reducing the overall weight of the flight mechanism 1, making it suitable for high-altitude operations. Furthermore, this locking action can be adaptively adjusted according to the force of the gripping rope 25, improving the overall automation and operational flexibility. It should be noted that the drive component 22 in this embodiment can be a stepper motor, servo motor, or other type of motor combined with a reducer to achieve the aforementioned functions.

[0056] Preferably, such as Figure 2 As shown, in this embodiment, an extension 200a is formed on the side wall of the connecting block 200, and an unlocking spring 21 is connected between the flight mechanism 1 and the extension 200a. When the driving member 22 no longer applies tension to the clamping rope 25, the unlocking spring 21 can gradually begin to elastically return to its original state of elastic tension when the gripper 202 is clamped, thereby driving the connecting block 200 together with the locking block 201 along the... Figure 2 Rotating clockwise causes the gripper 202 to gradually move away from the cable 48, completing the relative release function, so that the subsequent flight mechanism 1 can more smoothly detach from the cable 48.

[0057] The flight mechanism 1 includes a body 10, an extension arm 11, and a rotor 12. The connection between the connecting block 200 and the locking block 201 is movably hinged to the body 10. The extension arms 11 are symmetrically distributed on the body 10, and each extension arm 11 is equipped with a rotor 12 at its end.

[0058] like Figure 3 As shown, in this embodiment, the fuselage 10 is the core support structure of the flight mechanism 1. By symmetrically arranging the fuselage 10 on both sides, it can form an "X" or "H" shape to create a stable flight configuration. The length of the extension arm 11 can be adjusted according to the flight stability requirements to enhance wind resistance. As the motor connected to the rotor 12 starts and generates lift, the flight mechanism 1, together with the aforementioned locking mechanism 2, can move along the axis of the cable 48. With the help of the guide wheel 50, the flight mechanism 1 is guided to operate stably, effectively preventing swaying or deviation during ascent and descent. This working principle can be referenced from existing UAV technologies, and will not be described in detail here.

[0059] Both the detection mechanism 3 and the flight mechanism 1 are detachably connected to a mounting base 51. An elastic element 52 is provided inside the mounting base 51, and the guide wheel 50 extends movably into the mounting base 51 and is connected to the elastic element 52.

[0060] like Figure 3 and Figure 4As shown, in this embodiment, one end of the guide wheel 50 extends outside the mounting base 51, and the other end is connected to the mounting base 51 by an elastic element 52. The design of the mounting base 51 provides an installation reference for the guide wheel 50 and, in conjunction with the elastic element 52, effectively guides the movement direction of the guide wheel 50. Simultaneously, the elastic extension and retraction function of the elastic element 52 allows the guide wheel 50 to adapt to different stay cables 48 (i.e., both can always maintain a moving, abutting posture), thereby ensuring the smoothness and stability of the flight mechanism 1 and the detection mechanism 3 during ascent and descent. It should be noted that the elastic element 52 can be replaced by other elastic devices such as compression springs or return springs.

[0061] like Figure 1 As shown, the detection mechanism 3 in this embodiment includes a support block 30 and a power supply 31. A cable reel 4 is mounted on the support block 30. The support block 30 is used for mounting detection equipment (such as industrial CT scanners, high-definition scanners, or other detection equipment) to ensure that the device's load-bearing capacity meets the required usage requirements. The power supply 31 provides power for the rotor 12 to lift the body 10. Furthermore, the fact that the power supply 31 is mounted on the support block 30 rather than on the body 10 effectively reduces the overall weight of the body 10, ensuring that after it is lifted to the required position, the detection mechanism 3 can be lifted more smoothly and efficiently to the detection location for accurate detection.

[0062] The cable reel 4 includes: a housing 40, with a guide rod 41 and a lead screw 42 arranged in parallel; a driving bevel gear 43, a driving spur gear 44, and a driven spur gear 45. The driving bevel gear 43 is connected to the output end of the drive motor. The driving spur gear 44 is mounted on the guide rod 41 and coaxially connected to the driven bevel gear 46. The driven spur gear 45 is mounted on the lead screw 42 and is movably meshed with the driving spur gear 44. A take-up frame 47 is sleeved on the guide rod 41 and movably connected to the lead screw 42. A cable 48 is connected to the take-up frame 47, so that when the lead screw 42 rotates, it can be converted into linear motion of the take-up frame 47 to realize the take-up or release of the cable 48.

[0063] like Figure 1 and Figure 5As shown, once the gripper 202 achieves a stable clamping force on the stay cable 48, the reel 4 can begin the take-up operation. Driven by the motor, the multi-stage gear reduction structure provides a large torque output through the meshing of the driving bevel gear 43 and driven bevel gear 46, and the meshing of the driving spur gear 44 and driven spur gear 45. Since the housing 40 and the bearing block 30 in this embodiment are integrally formed or detachably connected by screws, the take-up frame 47 can drive the housing 40 and the bearing block 30 to be stably lifted during the take-up process. It should be noted that the guide rod 41 does not drive the take-up frame 47 to rotate synchronously, but only provides guidance and limit functions for the linear movement of the take-up frame 47. In addition, the rotational movement of the lead screw 42 can be converted into the linear movement of the take-up frame 47. This structure and working principle are the same as the principle of the ball screw in machinery, and at the same time, it has high transmission accuracy, ensuring that the take-up length is controllable, and providing a guarantee for the detection equipment on the bearing block 30 to accurately reach the required position and complete accurate detection.

[0064] like Figure 3 As shown, both the support block 30 and the body 10 are composed of a first main body 100 and a second main body 101. The connection between the first main body 100 and the second main body 101 can be locked and fixed by a locking pin 102. This installation structure and operation are relatively simple, making it easy for users to quickly and accurately put the device onto the cable-stayed cable 48, thus improving work efficiency.

[0065] Example 2:

[0066] This second embodiment is a further improvement on the clamping method of the clamping arm in the first embodiment. Specifically, the locking mechanism in this second embodiment includes: an electric push rod 270 and a connecting rod 271 arranged at an angle, which are mounted on the flight mechanism. The output end of the electric push rod 270 is connected to the connecting rod 271 to drive the connecting rod 271 to rotate relative to the flight mechanism; a connecting shaft 272, which is movably connected to the clamping arm, and both ends of the connecting shaft 272 are detachably connected to mounting sleeves 273; a telescopic rod 274 and a telescopic spring 275. One end of the telescopic rod 274 is connected to the common connection point of the electric push rod 270 and the connecting rod 271, and the other end extends movably into the mounting sleeve 273; the telescopic spring 275 is sleeved on the telescopic rod 274 and abuts against the mounting sleeve 273 and the common connection point of the electric push rod 270 and the connecting rod 271, respectively.

[0067] like Figure 6As shown, the clamping arm in this embodiment two is linearly arranged. When the electric push rod 270 is driven, the connecting rod 271 connected to the output end of the electric push rod 270 rotates relative to the flight mechanism (i.e., the fuselage in embodiment one). During this process, the telescopic rod 274 begins to retract into the mounting sleeve 273. At the same time, the telescopic spring 275 is also gradually compressed so that the clamping arm can perform the clamping function on the inclined cables of different diameters. Since the mounting sleeve 273 is movably hinged to the clamping arm by the connecting shaft 272, the clamping arm rotates along the electric push rod 270 output end. Figure 6 When the arrow shown moves, the mounting sleeve 273 and the telescopic rod 274 move along... Figure 6 Rotate counterclockwise, simultaneously causing the clamping arm to move along... Figure 6 The device is raised vertically until the clamping arm, telescopic rod 274, and connecting rod 271 are on the same horizontal line (i.e., a dead point is formed). This ensures the stability of the clamping arm's locking force on the stay cable, guaranteeing the smoothness and stability of the subsequent lifting of the testing mechanism. Preferably, in this second embodiment, the connection position between the connecting rod 271 and the machine body can be adaptively adjusted. That is, the diameter of the stay cable is measured before manually installing the connecting rod 271 to adjust the required installation position, thereby improving the applicability and flexibility of the device. Of course, the above method can also be used for the installation of the electric push rod 270, which will not be described in detail here.

[0068] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0070] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A dual-module cable-stayed bridge detection device, characterized in that, This includes a flight mechanism, a locking mechanism, a detection mechanism, and a cable reel, among which: The flight mechanism moves above the detection mechanism. Both the flight mechanism and the detection mechanism are provided with a number of guide wheels that are equidistantly distributed in a ring. The guide wheels are used to guide the flight mechanism and the detection mechanism to move along the axial direction of the cable. The locking mechanism has a clamping arm that can switch between an unlocked state and a clamped state of the flight mechanism. The clamping arm is used to clamp onto the outer wall of the cable to restrict the movement of the flight mechanism relative to the cable. The cable reel is mounted on the detection mechanism, and the cable on the cable reel is connected to the clamping arm so that when the cable reel takes up the cable, it provides a locking force to the clamping arm on the stay cable and drives the detection mechanism to move along the axis of the stay cable. When the clamping arm is in the unlocked state, the flight mechanism can be raised along the axis of the cable, and when the clamping arm switches to the clamping state, the cable reel can pull the detection mechanism to the required working position.

2. The dual-module cable-stayed bridge detection device according to claim 1, characterized in that, The clamping arm includes a connecting block and a locking block arranged at an angle. The connecting block is used to connect the cable on the reel. The locking block and the connecting block are movably hinged to the flight mechanism. The end of the locking block away from the connecting block is connected to a gripper, which movably grips the cable.

3. The dual-module cable-stayed bridge detection device according to claim 1, characterized in that, Both the detection mechanism and the flight mechanism are detachably connected to a mounting base, and an elastic element is provided inside the mounting base. The guide wheel extends movably into the mounting base and is connected to the elastic element.

4. The dual-module cable-stayed bridge detection device according to claim 1, characterized in that, The locking mechanism includes: An electric push rod and a connecting rod arranged at an angle are mounted on the flight mechanism. The output end of the electric push rod is connected to the connecting rod to drive the connecting rod to rotate relative to the flight mechanism. A connecting shaft is movably connected to the clamping arm, and both ends of the connecting shaft can be detachably connected to mounting sleeves; The telescopic rod and the telescopic spring are provided. One end of the telescopic rod is connected to the common connection point of the electric push rod and the connecting rod, and the other end extends movably into the mounting sleeve. The telescopic spring is sleeved on the telescopic rod and abuts against the mounting sleeve and the common connection point of the electric push rod and the connecting rod, respectively.

5. A dual-module cable-stayed bridge detection device according to claim 2, characterized in that, The sidewall of the connecting block has an extension, and an unlocking spring connects the flight mechanism to the extension.

6. The dual-module cable-stayed bridge detection device according to claim 2, characterized in that, The flight mechanism includes a fuselage, extension arms, and rotors. The connection between the connecting block and the locking block is movably hinged to the fuselage. The extension arms are symmetrically distributed on the fuselage, and each extension arm is equipped with a rotor at its end.

7. A dual-module cable-stayed bridge detection device according to claim 6, characterized in that, The locking mechanism further includes: The driving component is mounted on the machine body; The active winding post and the driven winding post are connected to the output end of the drive unit, and the driven winding post is movably connected to the machine body. A clamping rope is connected to the active winding post and the driven winding post. A limiting slider is connected to the locking block, and a connecting ring is formed on the limiting slider. The clamping rope passes through the connecting ring so that when the clamping rope is tightened, the clamping claw can press against the inclined cable.

8. A dual-module cable-stayed bridge detection device according to claim 6, characterized in that, The detection mechanism includes a support block and a power supply. The cable reel is mounted on the support block, which is used for mounting the detection equipment. The power supply is used to provide power for the rotor to lift the body.

9. A dual-module cable-stayed bridge detection device according to claim 6, characterized in that, The cable reel includes: The housing is equipped with parallel guide rods and lead screws; The system includes a driving bevel gear, a driving spur gear, and a driven spur gear. The driving bevel gear is connected to the output end of the drive motor. The driving spur gear is mounted on the guide rod and coaxially connected to the driven bevel gear. The driven spur gear is mounted on the lead screw and is movably meshed with the driving spur gear. A take-up frame is sleeved on the guide rod and movably connected to the lead screw. The take-up frame is connected to the cable, so that when the lead screw rotates, it can be converted into the linear motion of the take-up frame, so as to realize the take-up or release of the cable.

10. A dual-module cable-stayed bridge detection device according to claim 8, characterized in that, Both the bearing block and the body are composed of a first main body and a second main body, and the connection between the first main body and the second main body can be locked and fixed by a locking pin.

Images