Heavy load unmanned aerial crane automatic unhooking device

Abstract

The present application relates to the technical field of unmanned aerial vehicle, in particular to a heavy load unmanned aerial vehicle hoisting automatic unhooking device; Including mounting seat, slide pole mechanism and lubricating mechanism, lubricating mechanism includes lifting hook, micro oil tank, micro oil pump, arc block, oil tank, spray head and delivery pipe, when the goods are hoisted to the required point by the unmanned aerial vehicle, at this time, the electric control system of the unmanned aerial vehicle first controls the micro oil pump to act, extracts and transports the lubricating oil, finally the lubricating oil is vertically downward sprayed on the surface of the slide pole through multiple spray heads, then the slide pole mechanism is controlled to act to drive the slide pole to move to open the bottom of the lifting hook Lead line can be automatically detached, finally the friction can be reduced through the action of the lubricating oil when the lead line is detached, at the same time, compared with the single side hole flow guide structure in the prior art, the multiple spray head structure of the present application reduces the friction without being affected by the position of the lead line, thereby solving the problem that the existing unhooking device has poor protection effect on reducing the friction resistance of the slide pole when in use.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to an automatic unhooking device for heavy-duty UAV lifting. Background Technology

[0002] When using drones to drop relief supplies, modifications are made to the drones, such as adding hooks to hang the relief supplies. The relief supplies are then suspended on the hooks and flown with the drone to the drop location. In some scenarios, there are no personnel on the ground to receive the supplies, so it is necessary to remotely control the hooks to automatically detach them, allowing the relief supplies to fall off automatically under gravity.

[0003] A search revealed that prior art CN218751385U discloses an automatic unhooking projectile for unmanned aerial vehicles (UAVs), comprising a base, on which are mounted a wireless signal receiving module, a servo control module, a hook actuator, and a friction-reducing structure. The wireless signal receiving module receives a release signal and transmits it to the servo control module; the servo control module receives the release signal from the wireless signal receiving module and sends a release command to the hook actuator; the hook actuator releases and launches the object under the control of the release command from the servo control module; the friction-reducing structure reduces frictional resistance during unhooking and launching. This invention, through its friction-reducing structure, reduces frictional resistance during unhooking and launching, thereby increasing the service life of the automatic unhooking projectile.

[0004] However, the applicant found that when using the above-mentioned equipment, the sliding rod slides along the drive groove when the object is released, causing the partition to move away from the oil injection hole. This opens the oil injection hole, allowing the lubricating oil in the oil tank to enter the release hole from the oil injection hole. This causes the surface of the sliding rod to be covered with lubricating oil, reducing the frictional resistance of the sliding rod. However, the lead wire of the material is not in a fixed position on the sliding rod. When the lead wire is on the side away from the oil injection hole, it falls off quickly. Often, the lead wire has completely fallen off before the lubricating oil has even flowed to the other side, resulting in poor protection. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic unhooking device for heavy-duty drone lifting, which solves the problem that existing unhooking devices have poor protection effects in reducing frictional resistance of the sliding rod during use.

[0006] To achieve the above objectives, the present invention provides an automatic unhooking device for heavy-duty UAV hoisting, including a mounting base, a sliding rod mechanism provided on the front side of the mounting base, and a lubrication mechanism; The lubrication mechanism includes a hook, a miniature oil tank, a miniature oil pump, an arc-shaped block, an oil distribution tank, nozzles, and a delivery pipe. The hook is integrally mounted on the mounting base with its opening facing downwards and is slidably connected to a sliding rod. The miniature oil tank is mounted on the rear side of the mounting base. The miniature oil pump is mounted on the L-shaped oil outlet pipe of the miniature oil tank and communicates with the oil distribution tank through the delivery pipe, and is electrically connected to the UAV. The arc-shaped block is welded to the top of the hook, the oil distribution tank is welded to the arc-shaped block, and multiple nozzles are welded to the bottom oil outlet. The multiple nozzles are located directly above the sliding rod.

[0007] The sliding rod mechanism includes the sliding rod and a cooperating device, wherein the sliding rod is slidably connected to the hook; and the cooperating device is disposed on one side of the sliding rod.

[0008] The connecting device includes a connecting rod and a drive assembly. The connecting rod is rotatably connected to the sliding rod and is driven by the drive assembly to achieve the action.

[0009] The drive assembly includes a servo control component and a rotating arm. The servo control component is fixed to the rear side of the mounting base and electrically connected to the UAV. The rotating arm is fixed to the output end of the servo control component and rotatably connected to the connecting rod.

[0010] The miniature oil tank is equipped with an addition mechanism on its top, which consists of a feed pipe welded to the top of the miniature oil tank and a threaded cap screwed onto the top of the feed pipe.

[0011] The heavy-duty UAV hoisting automatic unhooking device also includes a stabilizing mechanism, which includes a fixing plate and a clamping device. The fixing plate is welded to the mounting base and located below the conveying pipe; the clamping device is disposed on the upper side of the fixing plate.

[0012] The clamping device includes a support base and a clamping base. The support base is integrally formed with the fixed plate and is slidably connected to the conveying pipe. The clamping base is slidably connected to the conveying pipe and to the support base.

[0013] This invention discloses an automatic unhooking device for heavy-duty drone lifting. After materials are lifted to the required location by the drone, the drone's electronic control system first controls a micro oil pump to extract and deliver lubricating oil. Finally, the lubricating oil is sprayed vertically downwards onto the surface of the sliding rod through multiple nozzles. Then, the sliding rod mechanism is controlled to move, opening the bottom opening of the hook and allowing the lead wire to automatically detach. Finally, the lubricating oil reduces friction when the lead wire detaches. At the same time, the multiple nozzle structure of this application, compared with the single-sided hole flow guide structure in the prior art, reduces friction and is not affected by the position of the lead wire, thus solving the problem that the existing unhooking devices have poor protection effect in reducing frictional resistance of the sliding rod during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the heavy-duty UAV hoisting automatic unhooking device according to the first embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the conveying pipe according to the first embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the arc-shaped block according to the first embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the clamping seat according to the second embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure of the sliding sleeve according to the third embodiment of the present invention.

[0020] In the diagram: 101-Mounting base, 102-Hook, 103-Miniature oil tank, 104-Miniature oil pump, 105-Arc-shaped block, 106-Distribution tank, 107-Nozzle, 108-Delivery pipe, 109-Sliding rod, 110-Connecting rod, 111-Steering gear control component, 112-Rotating arm, 113-Adding mechanism, 201-Fixing plate, 202-Support base, 203-Pressure seat, 301-Sliding sleeve, 302-Fixing disc, 303-Sealing plate. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1: like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of an automatic unhooking device for heavy-duty drones. Figure 2 This is a schematic diagram of the conveying pipe. Figure 3 This is a schematic diagram of the arc-shaped block. The present invention provides an automatic unhooking device for heavy-duty UAV lifting: it includes a mounting base 101, a sliding rod mechanism, and a lubrication mechanism. The lubrication mechanism includes a hook 102, a miniature oil tank 103, a miniature oil pump 104, an arc-shaped block 105, a distribution tank 106, a nozzle 107, and a delivery pipe 108. The sliding rod mechanism includes the sliding rod 109 and a cooperating device. The cooperating device includes a connecting rod 110 and a drive assembly. The drive assembly includes a servo control component 111 and a rotating arm 112. The aforementioned solution solves the problem of poor protection against frictional resistance in existing unhooking devices. It is understood that the aforementioned solution can improve the frictional protection effect of the sliding rod.

[0023] In this embodiment, a sliding rod mechanism is provided on the front side of the mounting base 101. The sliding rod mechanism is used to cooperate with the hook 102 to realize the hanging of the material guide wire. The mounting base 101 is installed on the bottom of the drone's shell. In addition, the standard parts used in this application can all be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. In addition, this application is mainly used to protect mechanical devices, so this application will not explain the control method and circuit connection in detail.

[0024] The hook 102 is integrally mounted on the mounting base 101 with its opening facing downwards, and a sliding rod 109 is slidably inserted into it. The miniature oil tank 103 is mounted on the rear side of the mounting base 101. The miniature oil pump 104 is mounted on the L-shaped oil outlet pipe of the miniature oil tank 103 and is connected to the oil distribution tank 106 through the delivery pipe 108, and is electrically connected to the UAV. The arc-shaped block 105 is welded to the top of the hook 102, and the oil distribution tank 106 is welded to the arc-shaped block 105. Multiple nozzles 107 are welded to the bottom oil outlet, and the multiple nozzles 107 are located directly above the sliding rod 109. The hook 102 is provided with a sliding hole for the sliding rod 109 to slide horizontally in a straight line. The miniature oil tank 103 is fixed by bolts and stores lubricating oil inside. The miniature oil pump 104 is fixed by bolts and adopts a pressurized structure to facilitate the straight spraying of lubricating oil. The oil distribution tank 106 is welded inside the vertical cavity of the arc-shaped block 105, and multiple nozzles 107 are welded to the outside of the oil outlet of the oil distribution tank 106. One flange of the delivery pipe 108 is connected to the outlet flange of the micro oil pump 104, and the other end is welded to the top of the oil distribution tank 106, and is made of pre-bent pipe.

[0025] Secondly, the slide rod 109 is slidably connected to the hook 102; the cooperating device is disposed on one side of the slide rod 109. The cooperating device is used to realize the horizontal movement of the slide rod 109 to achieve the hanging limit and automatic disengagement of the lead wire.

[0026] Then, the connecting rod 110 is rotatably connected to the sliding rod 109, and is driven by the drive assembly to achieve the action. The drive assembly is used to drive the connecting rod 110 to move, thereby driving the sliding rod 109 to move.

[0027] Furthermore, the servo control component 111 is fixed to the rear side of the mounting base 101 and electrically connected to the UAV; the rotating arm 112 is fixed to the output end of the servo control component 111 and rotatably connected to the connecting rod 110. The servo control component 111 can directly use an existing module, with the rotating arm 112 fixedly mounted on its output end. When the rotating arm 112 rotates, it can drive the connecting rod 110 to move, ultimately realizing the sliding of the slide rod 109.

[0028] Finally, the adding mechanism 113 consists of a feed pipe welded to the top of the miniature oil tank 103 and a threaded cap screwed onto the top of the feed pipe. The adding mechanism 113 facilitates the addition of lubricating oil to reduce friction; the internal oil level must be checked before the drone is used.

[0029] When using this invention to address the problem of poor protection against frictional resistance of existing unhooking devices, after materials are hoisted to the required location by a drone, the drone's electronic control system first controls the micro oil pump 104 to extract and deliver lubricating oil. Finally, the lubricating oil is sprayed vertically downwards onto the surface of the slide rod 109 through multiple nozzles 107. The micro oil pump 104 operates with a time delay, meaning it starts and then automatically stops after a delay controlled by the drone's electronic control system. Then, the servo control component 111 is controlled to move the slide rod 109, opening the bottom lead wire of the hook 102 so that it can automatically detach. Finally, when the lead wire detaches, the lubricating oil reduces friction between the lead wire and the slide rod 109, improving the service life of the slide rod 109. Furthermore, compared to the single-sided hole flow guide structure in the prior art, the structure of the multiple nozzles 107 in this application reduces friction caused by the position of the lead wire, thus solving the problem of poor protection against frictional resistance of existing unhooking devices.

[0030] Example 2: like Figure 4 As shown, where Figure 4 This is a schematic diagram of the clamping seat. Based on the first embodiment, the present invention provides a heavy-duty UAV hoisting automatic unhooking device. The heavy-duty UAV hoisting automatic unhooking device further includes a stabilizing mechanism, which includes a fixing plate 201 and a clamping device. The clamping device includes a support base 202 and a clamping seat 203.

[0031] The fixing plate 201 is welded to the mounting base 101 and located below the conveying pipe 108; the clamping device is disposed on the upper side of the fixing plate 201. The fixing plate 201 is welded and fixed to ensure stability.

[0032] Secondly, the support base 202 is integrally formed with the fixing plate 201 and is slidably connected to the conveying pipe 108; the clamping base 203 is slidably connected to the conveying pipe 108 and to the support base 202. Both the support base 202 and the clamping base 203 are provided with semi-circular cavities that mate with the outer surface of the conveying pipe 108. The clamping base 203 is installed on the top of the support base 202 via a connector, which is a T-shaped screw and a nut.

[0033] In this embodiment, the stability of the conveying pipe 108 after installation can be improved by the structure of the fixing plate 201, the support base 202 and the clamping base 203.

[0034] Example 3: like Figure 5 As shown, where Figure 5This is a schematic diagram of the sliding sleeve. Based on the first embodiment, the present invention provides a heavy-duty UAV hoisting automatic unhooking device. The heavy-duty UAV hoisting automatic unhooking device also includes a replacement mechanism, which includes a sliding sleeve 301, a fixed plate 302, and a sealing plate 303.

[0035] The sliding sleeve 301 is slidably connected to the sliding rod 109 and detachably connected to the hook 102; the fixed plate 302 is integrally formed with the sliding sleeve 301 and detachably connected to the hook 102; the sealing plate 303 is welded to the sliding sleeve 301.

[0036] In this embodiment, the sliding sleeve 301 is used for sliding engagement with the sliding rod 109, and is fixed by the fixing plate 302 to achieve limiting. The fixing plate 302 is fixed by multiple positioning pins and bolts. The sealing plate 303 is used for end protection engagement of the sliding rod 109.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A heavy-duty unmanned aerial vehicle (UAV) hoisting automatic unhooking device, comprising a mounting base, wherein a sliding rod mechanism is provided on the front side of the mounting base, characterized in that... , It also includes a lubrication mechanism; The lubrication mechanism includes a hook, a miniature oil tank, a miniature oil pump, an arc-shaped block, an oil distribution tank, nozzles, and a delivery pipe. The hook is integrally mounted on the mounting base with its opening facing downwards and is slidably connected to a sliding rod. The miniature oil tank is mounted on the rear side of the mounting base. The miniature oil pump is mounted on the L-shaped oil outlet pipe of the miniature oil tank and communicates with the oil distribution tank through the delivery pipe, and is electrically connected to the UAV. The arc-shaped block is welded to the top of the hook, the oil distribution tank is welded to the arc-shaped block, and multiple nozzles are welded to the bottom oil outlet. The multiple nozzles are located directly above the sliding rod.

2. The heavy-duty UAV hoisting automatic unhooking device as described in claim 1, characterized in that... , The sliding rod mechanism includes the sliding rod and a cooperating device. The sliding rod is slidably connected to the hook. The cooperating device is located on one side of the sliding rod.

3. The heavy-duty UAV hoisting automatic unhooking device as described in claim 2, characterized in that... , The cooperating device includes a connecting rod and a drive assembly. The connecting rod is rotatably connected to the slide rod and is driven by the drive assembly to achieve the action.

4. The heavy-duty UAV hoisting automatic unhooking device as described in claim 3, characterized in that... , The drive assembly includes a servo control component and a rotating arm. The servo control component is fixed to the rear side of the mounting base and electrically connected to the UAV. The rotating arm is fixed to the output end of the servo control component and rotatably connected to the connecting rod.

5. The heavy-duty UAV hoisting automatic unhooking device as described in claim 1, characterized in that... , The top of the miniature oil tank is equipped with an addition mechanism, which consists of a feed pipe welded to the top of the miniature oil tank and a threaded cap screwed onto the top of the feed pipe.

6. The heavy-duty UAV hoisting automatic unhooking device as described in claim 1, characterized in that... , The heavy-duty UAV hoisting automatic unhooking device also includes a stabilizing mechanism, which includes a fixing plate and a clamping device. The fixing plate is welded to the mounting base and located below the conveying pipe; the clamping device is disposed on the upper side of the fixing plate.

7. The heavy-duty UAV hoisting automatic unhooking device as described in claim 6, characterized in that... , The clamping device includes a support base and a clamping base. The support base is integrally formed with the fixed plate and is slidably connected to the conveying pipe. The clamping base is slidably connected to the conveying pipe and to the support base.

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