Hanging and unhooking device

Abstract

The hooking and unhooking device is used for connection of an unmanned aerial vehicle and a carrying device and comprises a connecting rod hook, a base, a driving assembly and a hooking and unhooking assembly, the connecting rod hook is provided with a matching shaft, the hooking and unhooking assembly comprises a rotating shaft and a rotating outer hook, the rotating shaft is installed on the base, and the rotating outer hook is installed on the base. The rotating shaft is arranged on the base and can rotate relative to the base, the rotating shaft is sleeved with the rotating outer hook, the rotating outer hook is provided with a buckling groove channel connected with the matching shaft in a hooked mode, the buckling groove channel is in an arc shape, and the driving assembly is installed on the base and connected with the rotating shaft. And the rotating outer hook is driven to rotate and is switched back and forth between a hooking state and an unhooking state. The problems encountered when the unmanned aerial vehicle carries equipment are solved, and the application efficiency and safety of the unmanned aerial vehicle in the fields of power inspection and the like are improved.

Description

Technical Field

[0001] The invention relates to the technical field of unhooking, and in particular to a hooking and unhooking device. Background Art

[0002] In the power industry, the installation and regular maintenance of high-voltage transmission lines is a critical task. These lines are often located in remote or difficult-to-reach locations, which poses a great challenge to traditional manual operations. In recent years, with the development of drone technology, the use of drones for transmission line-related operations has become a new trend. Drones can carry the necessary inspection or maintenance equipment to the target area, which significantly improves work efficiency and reduces human resource requirements.

[0003] Given that the drone operation environment is usually in suburban areas far from the city center, the auxiliary tools available on site are very limited; in addition, considering that workers rarely carry tools specifically for equipment installation and removal in order to reduce their burden, this requires that the equipment carried by the drone and its fixings must be extremely easy to use, that is, they can be installed with the least number of operating steps. In actual applications, once the drone arrives at the predetermined operation point, it is necessary to accurately release the equipment it carries to the designated location. The unhooking mechanism used in this process must be extremely reliable, but the existing unhooking mechanism has low structural reliability and is complex to operate, which can easily cause the drone to lose balance or even crash, and may also cause irreversible damage to expensive professional equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing unhooking mechanism has low structural reliability and is complicated to operate, which can easily cause the drone to lose balance or even crash, and may also cause irreversible damage to expensive professional equipment.

[0005] In order to solve the above technical problems, the present invention provides a hooking and unhooking device for connecting a drone and a carrying device, comprising a connecting rod hook, a base, a driving assembly and a hooking and unhooking assembly, the connecting rod hook having a mating shaft, the hooking and unhooking assembly comprising a rotating shaft and a rotating outer hook, the rotating shaft being mounted on the base and being rotatable relative to the base, the rotating outer hook being sleeved on the circumference of the rotating shaft, and the rotating outer hook having a snap-fitting groove hooked with the mating shaft, the snap-fitting groove being arc-shaped, the driving assembly being mounted on the base and connected to the rotating shaft to drive the rotating outer hook to rotate and switch back and forth between a hooked state and an unhooked state.

[0006] Furthermore, the rotating outer hook includes a connecting portion and a hook portion extending and bending from one end of the connecting portion around the outer circumference of the connecting portion, and the inner wall of the hook portion and the outer wall of the connecting portion are combined to form the locking groove.

[0007] Furthermore, the snap-fitting channel has an open end, a closed end, and a connecting channel connecting the open end and the closed end, and the width of the open end is greater than the width of the closed end.

[0008] Furthermore, the center of the buckling groove is spaced 0.8-1.3 mm from the center of the connecting portion.

[0009] Furthermore, the rotating shaft has a step portion.

[0010] Furthermore, the connecting rod hook includes a main body, the main body has a first groove and a second groove arranged at both ends thereof, the first groove is connected to the drone, the second groove is installed with the mating shaft, and a mating space for the rotating outer hook to move is defined between the bottom of the second groove and the mating shaft.

[0011] Furthermore, the base has a positioning groove at one end facing the connecting rod hook, and the connecting rod hook also includes a positioning wedge block adapted to the positioning groove, and the positioning wedge block is arranged on the outer wall of the main body.

[0012] Furthermore, the driving assembly includes a driving member, which is mounted on the outer wall of the base and connected to the rotating shaft.

[0013] Furthermore, the driving assembly also includes a shifting rod and a travel switch group for detecting the position of the shifting rod, and the shifting rod is connected to an end of the rotating shaft away from the driving member.

[0014] Furthermore, the travel switch group includes two travel switches, and the two travel switches are respectively arranged on both sides of the shifting rod.

[0015] Compared with the prior art, the hook-and-unhook device according to the embodiment of the present invention has the following beneficial effects:

[0016] When it is necessary to carry a device, the embodiment of the present invention controls the rotating outer hook to rotate to an appropriate angle through the driving component, so that the snap-fitting groove on the rotating outer hook just catches the mating shaft of the connecting rod hook, forming a stable connection and achieving hooking. When it is necessary to release the device, the rotating outer hook is again rotated in the opposite direction by the driving component until the snap-fitting groove is disengaged from the mating shaft, completing the unhooking action. The entire hooking and unhooking process of this embodiment can be automatically completed by remote control or preset program, reducing the need for manual intervention and simplifying the operation process. Since the unhooking process is precisely controlled by the driving component, it can be set to slow release to reduce the impact on the flight stability of the drone. It has a simple structure and is easy to operate, which solves the problems encountered when the drone carries the device and improves the application efficiency and safety of the drone in fields such as power inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the hooking and unhooking device provided in an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a rotating outer hook provided by an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a rotating shaft provided by an embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of a connecting rod hook provided by an embodiment of the present invention;

[0021] In the figure, 1. connecting rod hook; 11. matching shaft; 12. main body; 121. first groove; 122. second groove; 123. matching space; 13. positioning wedge; 2. base; 21. positioning groove; 3. driving assembly; 31. driving member; 32. lever; 33. travel switch group; 331. travel switch; 4. hook and unhook assembly; 41. rotating shaft; 411. step portion; 42. rotating outer hook; 421. snap-fitting groove; 4211. opening end; 4212. closing end; 4213. connecting channel; 422. connecting portion; 423. hook portion. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figures 1 to 4 As shown, the present invention provides a hooking and unhooking device for connecting a drone and a carrying device, comprising a connecting rod hook 1, a base 2, a driving assembly 3 and a hooking and unhooking assembly 4, wherein the connecting rod hook 1 has a matching shaft 11, and the hooking and unhooking assembly 4 comprises a rotating shaft 41 and a rotating outer hook 42, wherein the rotating shaft 41 is mounted on the base 2 and can rotate relative to the base 2, and the rotating outer hook 42 is sleeved on the circumference of the rotating shaft 41, and the rotating outer hook 42 has a snap-fitting groove 421 hooked with the matching shaft 11, and the snap-fitting groove is arc-shaped, and the driving assembly 3 is mounted on the base 2 and connected with the rotating shaft 41 to drive the rotating outer hook 42 to rotate and switch back and forth between a hooked state and an unhooked state.

[0024] Based on the above structure, when it is necessary to carry the device, the driving component 3 is used to control the rotating outer hook 42 to rotate to an appropriate angle, so that the snap-fit ​​groove 421 on the rotating outer hook 42 just catches the mating shaft 11 of the connecting rod hook 1, forming a stable connection and achieving hooking. When it is necessary to release the device, the driving component 3 is used again to rotate the rotating outer hook 42 in the opposite direction until the snap-fit ​​groove 421 is disengaged from the mating shaft 11, completing the unhooking action. The entire hooking and unhooking process of this embodiment can be automatically completed by remote control or a preset program, reducing the need for manual intervention and simplifying the operation process. Since the unhooking process is precisely controlled by the driving component 3, it can be set to slow release to reduce the impact on the flight stability of the drone. The structure is simple and the operation is simple, which solves the problems encountered when the drone carries the device and improves the application efficiency and safety of the drone in fields such as power inspection.

[0025] like Figure 2 As shown, the rotating outer hook 42 includes a connecting portion 422 and a hook portion 423 extending from one end of the connecting portion 422 and bending around the outer circumference of the connecting portion 422 . The inner wall of the hook portion 423 and the outer wall of the connecting portion 422 are combined to form a buckling groove 421 .

[0026] The hook portion 423 of this embodiment is shaped like a hook with an opening facing inward, so as to hook the mating shaft 11 of the connecting rod hook 1, that is, the shape of the snap-fit ​​groove 421 is arc-shaped, so that the mating shaft 11 can enter and lock. When an object (such as equipment carried by a drone) needs to be fixed to the drone, the hook portion 423 of the rotating hook will be rotated to a suitable angle so that the mating shaft 11 can slide smoothly into the snap-fit ​​groove 421. Once the mating shaft 11 completely enters the snap-fit ​​groove 421, the hook portion 423 will be fixed, so that the mating shaft 11 is firmly locked in the snap-fit ​​groove 421, thereby achieving hooking. When the object needs to be released, the rotating hook is driven to rotate again by the driving component 3, so that the mating shaft 11 gradually withdraws from the snap-fit ​​groove 421 to complete the unhooking process.

[0027] In this embodiment, by locking the mating shaft 11 into the snap-fitting groove 421, the rotating hook can safely and reliably fix the device to the drone to ensure that it will not accidentally fall off during flight. When arriving at the destination or completing the mission, the device can be easily released by rotating the hook without complicated operations.

[0028] Furthermore, the snap-fitting groove 421 has an open end 4211, a closed end 4212, and a connecting path 4213 connecting the open end 4211 and the closed end 4212. The width of the open end 4211 is greater than the width of the closed end 4212, so that the mating shaft 11 can enter the groove more easily. The closed end 4212 ensures that once the mating shaft 11 enters the snap-fitting groove 421 and moves to the closed end 4212 through a rotational action, it can be tightly locked. At the same time, the width of the closed end 4212 can be adapted to the size of the mating shaft 11 to prevent the mating shaft 11 from sliding out by itself without external force. The connecting path 4213 is arc-shaped, and the inner arc surface is smooth, and the friction during rotation is small, so that the process of entering and sliding out of the mating shaft 11 is smooth and unobstructed, which is conducive to hooking and unhooking. Preferably, the center of the snap-fit ​​groove is spaced 0.8-1.3 mm from the center of the connecting portion 422. During the uncoupling process, the gravity work of the device helps the mating shaft 11 to disengage from the snap-fit ​​groove 421, reducing the load on the motor and making the uncoupling process easier and more reliable.

[0029] like Figure 3 As shown, the rotating shaft 41 has a step portion 411 as a reference for axial positioning. When the rotating outer hook 42 is sleeved on the rotating shaft 41, the step portion 411 can limit its axial movement range to ensure that they are installed in the correct position.

[0030] like Figure 4 As shown, the connecting rod hook 1 includes a main body 12, and the main body 12 has a first groove 121 and a second groove 122 arranged at both ends thereof. The first groove 121 is connected to the drone, and the second groove 122 is installed with a matching shaft 11, and a matching space 123 for the rotation of the outer hook 42 is defined between the groove bottom of the second groove 122 and the matching shaft 11, so as to provide the rotation outer hook 42 with sufficient range of motion so that it can freely switch between the hooked state and the unhooked state.

[0031] The first groove 121 of this embodiment is fixedly connected to the drone by an appropriate connection method (such as screws, buckles, magnets, etc.). When the drone needs to carry the device, the rotating outer hook 42 is rotated to a position through the action of the driving assembly 3, so that the snap-fitting groove 421 of the rotating outer hook 42 can dock with the mating shaft 11. At this time, the mating shaft 11 enters the snap-fitting groove 421 and is locked when the rotating outer hook 42 continues to rotate to the closed end 4212. When the device needs to be released, the rotating outer hook 42 rotates in the opposite direction through the action of the driving assembly 3, so that the opening of the snap-fitting groove 421 becomes larger, and the mating shaft 11 can withdraw from the snap-fitting groove 421. At this time, the device can be safely separated from the drone.

[0032] Furthermore, one end of the base 2 facing the connecting rod hook 1 has a positioning groove 21 , and the connecting rod hook 1 also includes a positioning wedge 13 adapted to the positioning groove 21 , and the positioning wedge 13 is arranged on the outer wall of the main body 12 .

[0033] In this embodiment, when installing the connecting rod hook 1 to the base 2, the positioning wedge 13 needs to be aligned with the positioning groove 21 on the base 2. When the two are aligned, the connecting rod hook 1 can be smoothly inserted into the base 2. When the connecting rod hook 1 is fully inserted into the base 2, the positioning wedge 13 will be embedded in the positioning groove 21. This embedded structure ensures that the connecting rod hook 1 is firmly positioned in the base 2 to prevent it from moving due to vibration or external force during the flight of the drone.

[0034] like Figure 1 As shown, the drive assembly 3 includes a drive member 31, which is mounted on the outer wall of the base 2 and connected to the rotating shaft 41. The drive member 31 of this embodiment is usually an electric motor (such as a reduction motor, a servo motor, a stepper motor or a DC motor), and can also be a pneumatic or hydraulic drive device. The drive member 31 is mounted on the outer wall of the base 2 and is connected to the rotating shaft 41 through a transmission mechanism (such as gears, belts or direct connection). When a hooking or unhooking operation is required, the control system sends a command to the drive member 31. The drive member 31 starts to rotate, and the rotating shaft 41 is driven to rotate through the transmission mechanism. The rotation of the rotating shaft 41 causes the rotating outer hook 42 to rotate accordingly. The rotation of the rotating outer hook 42 can make its engaging groove 421 dock or separate with the matching shaft 11 on the connecting rod hook 1, thereby achieving hooking or unhooking.

[0035] Furthermore, the driving assembly 3 further includes a lever 32 and a travel switch group 33 for detecting the position of the lever 32 . The lever 32 is connected to an end of the rotating shaft 41 away from the driving member 31 .

[0036] Based on the above structure, when the rotating shaft 41 rotates, the lever 32 will also rotate accordingly, and the lever 32 moves within a specific angle range. When it reaches the specified limit position, the travel switch group 33 is triggered. In the initial state, the rotating outer hook 42 is in a default position (for example, a hooked state or an unhooked state), and the lever 32 is also in the corresponding initial position. When a hooking or unhooking operation is required, the control system sends a command to the driving member 31, and the driving member 31 starts to rotate, driving the rotating shaft 41 to rotate through the transmission mechanism. The rotation of the rotating shaft 41 causes the rotating outer hook 42 to rotate accordingly, and the lever 32 also rotates with the rotating shaft 41. During the rotation process, the lever 32 triggers the travel switch group 33 to determine the current position of the lever 32 (and the rotating outer hook 42) by detecting that the travel switch 331 is triggered.

[0037] Further, the travel switch group 33 includes two travel switches 331, which are respectively arranged on both sides of the lever 32. Each travel switch 331 has a trigger point, and when the lever 32 touches the trigger point, the switch changes state (for example, from on to off or from off to on).

[0038] In the initial state, the rotating outer hook 42 is in a certain default position (for example, hooked state or unhooked state), and the lever 32 is also in the corresponding initial position. At this time, the lever 32 may not trigger the travel switch 331, or only trigger one of the travel switches 331. When a hooking or unhooking operation is required, the control system sends a command to the driving member 31. The driving member 31 starts to rotate, and drives the rotating shaft 41 to rotate through the transmission mechanism. The rotation of the rotating shaft 41 causes the rotating outer hook 42 and the lever 32 to rotate accordingly. The lever 32 triggers the travel switch 331 in the travel switch group 33 during the rotation process. For example: the lever 32 rotates clockwise from the initial position: when the lever 32 rotates to a certain angle, the A travel switch 331 is triggered, indicating that the rotating outer hook 42 has reached the hooking position. When the lever 32 continues to rotate to another angle, the B travel switch 331 is triggered, indicating that the rotating outer hook 42 has reached the unhooking position. The state change of the travel switch 331 is fed back to the control system, and the control system confirms whether the rotating outer hook 42 has correctly completed the hooking or unhooking operation based on the feedback information. By setting two travel switches 331 on both sides of the lever 32, the position of the lever 32 can be detected more accurately. Each switch corresponds to a specific position, thereby ensuring that the rotating outer hook 42 can accurately switch between the hooking and unhooking states.

[0039] It should be noted that, due to the simple structure and few parts in this embodiment, the weight of the entire device can be optimized to be very light. For example, mold injection molding and carbon fiber molding can become manufacturing solutions for the parts, and the production cost will be effectively reduced.

[0040] In summary, an embodiment of the present invention provides a hooking and unhooking device. When it is necessary to carry a device, the driving component 3 is used to control the rotating outer hook 42 to rotate to an appropriate angle, so that the snap-fitting groove 421 on the rotating outer hook 42 just catches the mating shaft 11 of the connecting rod hook 1, forming a stable connection and achieving hooking. When it is necessary to release the device, the driving component 3 is used again to rotate the rotating outer hook 42 in the opposite direction until the snap-fitting groove 421 is disengaged from the mating shaft 11, completing the unhooking action. The entire hooking and unhooking process of this embodiment can be automatically completed by remote control or preset program, reducing the need for manual intervention and simplifying the operation process. Since the unhooking process is precisely controlled by the driving component 3, it can be set to slow release to reduce the impact on the flight stability of the drone. The structure is simple and the operation is simple, which solves the problems encountered when the drone carries the device and improves the application efficiency and safety of the drone in the fields of power inspection.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A hook-and-unhook device for connecting a drone and a carrying device, characterized in that: It includes a connecting rod hook, a base, a driving component and a hook-and-unhook component, the connecting rod hook has a matching shaft, the hook-and-unhook component includes a rotating shaft and a rotating outer hook, the rotating shaft is installed on the base and can rotate relative to the base, the rotating outer hook is sleeved on the circumference of the rotating shaft, and the rotating outer hook has a snap-fitting groove hooked with the matching shaft, the snap-fitting groove is arc-shaped, the driving component is installed on the base, and is connected to the rotating shaft to drive the rotating outer hook to rotate and switch back and forth between a hooked state and an unhooked state.

2. The hook-and-unhook device according to claim 1, characterized in that: The rotating outer hook comprises a connecting portion and a hook portion extending and bending from one end of the connecting portion around the outer circumference of the connecting portion, and the inner wall of the hook portion and the outer wall of the connecting portion are enclosed to form the buckling groove.

3. The hook-and-unhook device according to claim 2, characterized in that: The buckling channel has an open end, a closed end and a connecting channel connecting the open end and the closed end, and the width of the open end is greater than the width of the closed end.

4. The hooking and unhooking device according to claim 2, characterized in that: The center of the buckling groove is spaced 0.8-1.3 mm from the center of the connecting portion.

5. The hooking and unhooking device according to claim 2, characterized in that: The rotating shaft has a stepped portion.

6. The hooking and unhooking device according to claim 1, characterized in that: The connecting rod hook includes a main body, which has a first groove and a second groove arranged at both ends thereof, the first groove is connected to the drone, the second groove is installed with the matching shaft, and a matching space for the rotating outer hook to move is defined between the groove bottom of the second groove and the matching shaft.

7. The hooking and unhooking device according to claim 6, characterized in that: The base has a positioning groove at one end facing the connecting rod hook, and the connecting rod hook also includes a positioning wedge block adapted to the positioning groove, and the positioning wedge block is arranged on the outer wall of the main body.

8. The hooking and unhooking device according to claim 1, characterized in that: The driving assembly includes a driving member, which is installed on the outer wall of the base and connected to the rotating shaft.

9. The hooking and unhooking device according to claim 8, characterized in that: The driving assembly further comprises a shifting rod and a travel switch group for detecting the position of the shifting rod, and the shifting rod is connected to an end of the rotating shaft away from the driving member.

10. The hooking and unhooking device according to claim 9, characterized in that: The travel switch group includes two travel switches, and the two travel switches are respectively arranged on both sides of the shifting rod.

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