Take-off auxiliary tool for surveying and mapping unmanned aerial vehicle

Abstract

The takeoff auxiliary tool comprises a base plate, an ejection frame is arranged on the upper side of the base plate, the rear side of the ejection frame is hinged to the base plate, and an angle adjusting mechanism is arranged between the ejection frame and the base plate; a plurality of parallel guide columns are arranged in the ejection frame, guide sleeves are arranged on the guide columns, spiral tension springs are arranged on the guide columns, one ends of the tension springs are connected with the guide sleeves, the other ends of the tension springs are detachably connected with the front ends of the guide columns, and sliding plates are arranged at the tops of the guide sleeves. A panel is arranged on the upper side of the ejection frame, the rear side of the panel is hinged to the ejection frame, a guide long hole of the sliding plate is formed in the panel, a pushing plate connected with the sliding plate in an inserted mode is arranged above the panel, and a lock hook mechanism connected with the panel is arranged on the rear side of the pushing plate. The device has the advantages of being good in universality, low in cost and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of surveying drones, and in particular relates to a take-off aid tool for surveying drones. Background Technology

[0002] Surveying drones are mainly divided into two categories: one is the multi-rotor type, which has no initial speed requirement for takeoff and can achieve static takeoff from the spot, but generally has a low speed and short range, making it suitable for small-scale surveying; the other is the fixed-wing type, which has an initial speed requirement for takeoff and generally obtains a certain initial speed through catapult launch to achieve takeoff. It has a higher flight speed and a longer range, making it suitable for large-scale surveying. The surveying drones described in this application below are fixed-wing type surveying drones.

[0003] For any surveying drone, the initial speed must be within a certain range. If the initial speed obtained by catapult is too low, takeoff may fail. If the initial speed obtained by catapult is too high, it means that the catapult load on the aircraft may be too large, which may cause deformation of the aircraft and is not conducive to long-term use.

[0004] Existing catapult devices for taking off mapping drones, such as the drone takeoff aid device in application number 202010443295.5, include a frame, a push plate on the frame, and a spring between the push plate and the frame. In the initial state, the spring is locked and in an extended state. When the mapping drone is placed in front of the push plate, the spring is unlocked, the spring contracts, and the push plate moves forward, launching the mapping drone.

[0005] Existing catapult systems have the following drawbacks: there are significant mass differences between different models of surveying drones. When using the same catapult system, a high-mass surveying drone may not be able to achieve the minimum required initial speed and may fail to take off, while a low-mass surveying drone may acquire too much catapult load, leading to a decrease in its service life. This reduces the versatility of the catapult system. For surveying units, multiple catapult systems may be required for multiple surveying drone models, increasing equipment and management costs. Utility Model Content

[0006] The purpose of this invention is to provide a takeoff assistance tool for surveying drones. This invention has the advantages of good versatility, low cost, and ease of use.

[0007] The technical solution of this utility model is as follows: a take-off auxiliary tool for a surveying drone, including a base plate, an ejection frame on the upper side of the base plate, a rear side of the ejection frame hinged to the base plate, and an angle adjustment mechanism between the ejection frame and the base plate.

[0008] The ejection frame has multiple parallel guide posts, each with a guide sleeve and a spiral tension spring. One end of the tension spring is connected to the guide sleeve, and the other end is detachably connected to the front end of the guide post. The top of the guide sleeve has a sliding plate.

[0009] The upper side of the catapult frame is provided with a panel, the rear side of which is hinged to the catapult frame. The panel has a guide hole for the slide plate, and a push plate that is inserted into the slide plate is provided above the panel. A locking hook mechanism for connecting the panel is provided on the rear side of the push plate.

[0010] In the aforementioned surveying drone takeoff aid tool, there are four guide pillars, and the front part of the guide pillars is provided with multiple pins. The front end of the tension spring is bent into a hook shape and fitted onto one of the pins.

[0011] In the aforementioned surveying UAV takeoff aid, the angle adjustment mechanism includes support rods located on both sides of the catapult frame. A row of insertion holes is provided on both sides of the base plate. One end of the support rod is hinged to the catapult frame, and the other end of the support rod is bent inward and inserted into one of the insertion holes.

[0012] In the aforementioned surveying UAV takeoff aid tool, the locking hook mechanism includes a hook located at the lower rear end of the push plate and a bracket located at the rear of the hook and fixed to the panel. The bracket is provided with a rotating shaft, and a hook rod is rotatably connected to the rotating shaft. The hook part of the hook rod is connected to the hook.

[0013] In the aforementioned surveying UAV takeoff aid tool, the distance between the rear end of the hook rod and the pivot is more than twice the distance between the front end of the hook rod and the pivot.

[0014] Compared with existing technologies, this invention also utilizes a push plate to provide catapult takeoff power for the UAV. However, the push plate is connected to multiple springs, allowing for a change in the number of springs used for catapult launch, and the elasticity of each spring is adjustable. This enables the provision of the required initial takeoff speed to different types of surveying UAVs, resulting in better versatility and reducing equipment and management costs for surveying units. Furthermore, this invention simplifies the complexity of the angle adjustment mechanism, reducing costs. By optimizing the connection structure between the sliding plate and the push plate, the push plate can be easily removed, facilitating the opening of the panel for spring adjustment, making it convenient to use. In summary, this invention has the advantages of good versatility, low cost, and ease of use. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of this utility model.

[0016] Figure 2 This is a top view of the ejection frame.

[0017] Figure 3 This is a top view of the panel.

[0018] Figure 4 This is a front view schematic diagram of the locking hook mechanism.

[0019] Figure 5 This is a front view schematic diagram of the connection structure between the skateboard and the push plate.

[0020] Figure 6 yes Figure 5 This is a schematic diagram at point AA.

[0021] Figure 7 This is a schematic diagram of the present invention when it is opened.

[0022] The labels in the attached diagram are as follows: 1-base plate, 2-ejection frame, 3-guide sleeve, 4-guide post, 5-tension spring, 6-slide plate, 7-panel, 8-guide elongated hole, 9-push plate, 10-pin, 11-support rod, 12-insertion hole, 13-hook, 14-bracket, 15-rotating shaft, 16-hook rod, 17-insertion strip, 18-slot. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] Example: A takeoff aid tool for surveying drones, such as Figure 1 As shown, it includes a base plate 1, an ejector frame 2 on the upper side of the base plate 1, the rear side of the ejector frame 2 is hinged to the base plate 1, and an angle adjustment mechanism is provided between the ejector frame 2 and the base plate 1.

[0025] The ejection frame 2 has four parallel guide posts 4. Guide sleeves 3 are slidably connected to the guide posts 4. A spiral tension spring 5 is provided on the guide posts 4. One end of the tension spring 5 is connected to the guide sleeve 3, and the other end of the tension spring 5 is detachably connected to the front end of the guide post 4. A sliding plate 6 is provided on the top of the guide sleeve 3.

[0026] The upper side of the ejection frame 2 is provided with a panel 7. The rear side of the panel 7 is hinged to the ejection frame 2. The panel 7 is provided with a guide hole 8 for the slide plate 6. The upper part of the panel 7 is provided with a push plate 9 that is inserted into the slide plate 6. The rear side of the push plate 9 is provided with a locking hook mechanism that connects to the panel 7.

[0027] The front part of the guide post 4 is provided with multiple pins 10, which are distributed along the length of the guide post 4. The front end of the tension spring 5 is bent into a hook shape and fitted onto one of the pins 10.

[0028] The angle adjustment mechanism includes support rods 11 located on both sides of the catapult frame 2. A row of insertion holes 12 is provided on both sides of the base plate 1. One end of the support rod 11 is hinged to the catapult frame 2, and the other end of the support rod 11 is bent inward and inserted into one of the insertion holes 12.

[0029] The locking mechanism includes a hook 13 located at the lower rear end of the push plate 9 and a bracket 14 located behind the hook 13 and fixed to the panel 7. The bracket 14 is provided with a rotating shaft 15, and a hook rod 16 is rotatably connected to the rotating shaft 15. The hook part of the hook rod 16 is connected to the hook 13. The distance between the rear end of the hook rod 16 and the rotating shaft 15 is more than twice the distance between the front end of the hook rod 16 and the rotating shaft 15, so as to reduce the downward pressure required by the hook rod 16 when the locking mechanism is opened.

[0030] The insertion structure between the skateboard 6 and the push plate 9 includes a strip 17 fixed to the upper front side of the skateboard 6 and a slot 18 located on the rear side of the push plate 9. The slot 18 has a convex cross-section, with its lower end penetrating the bottom surface of the push plate 9, and its upper end maintaining a certain distance from the top surface of the push plate 9. A certain gap is maintained between the push plate 9 and the panel 7 to prevent the push plate 9 from contacting the panel 7 during movement.

[0031] Instructions for use: Place the base plate 1 on the ground. Pull the push plate 9 upwards and rotate the panel upwards to expose the launch frame 2.

[0032] Depending on the mass of the mapping drone to be launched and the required initial takeoff speed, adjust the number of tension springs 5 ​​accordingly. For example, to reduce the number of tension springs, simply disconnect the front end of the spring from the corresponding pin 10, leaving the spring free and not involved in the launch. After adjusting the number of tension springs 5, connecting the front end of the spring to different pins 10 can also change the tension applied to the push plate 9. For any drone, a few simple tests at the beginning will determine the required number of tension springs and which pin each spring should be connected to; subsequent steps can then be performed accordingly.

[0033] Close panel 7, insert push plate 9 into each insert 17, move push plate 9 backward, the corresponding tension spring is stretched until hook 13 is connected to the hook at the front end of hook rod 16, release push plate 9, push plate 9 remains stationary.

[0034] Adjust the angle between the launch frame 2 and the base plate 1 according to the launch angle, and insert the front end of the support rod 11 into the corresponding socket 12.

[0035] Pressing down the rear end of the hook rod 16 separates the hook part of the hook rod 16 from the hook 13. Under the action of the tension spring, the push plate 9 moves forward, which can then launch the surveying drone.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A takeoff aid tool for surveying unmanned aerial vehicles (UAVs), characterized in that: Includes a base plate (1), an ejection frame (2) is provided on the upper side of the base plate (1), the rear side of the ejection frame (2) is hinged to the base plate (1), and an angle adjustment mechanism is provided between the ejection frame (2) and the base plate (1). The ejection frame (2) is provided with multiple parallel guide posts (4), and guide sleeves (3) are provided on the guide posts (4). A spiral tension spring (5) is provided on the guide posts (4). One end of the tension spring (5) is connected to the guide sleeve (3), and the other end of the tension spring (5) is detachably connected to the front end of the guide post (4). A sliding plate (6) is provided on the top of the guide sleeve (3). The upper side of the ejection frame (2) is provided with a panel (7), the rear side of the panel (7) is hinged to the ejection frame (2), the panel (7) is provided with a guide hole (8) for the slide plate (6), the upper side of the panel (7) is provided with a push plate (9) that is inserted into the slide plate (6), and the rear side of the push plate (9) is provided with a locking hook mechanism for connecting the panel (7).

2. The takeoff aid tool according to claim 1, characterized in that: There are four guide posts (4). The front part of the guide post (4) is provided with multiple pins (10). The front end of the tension spring (5) is bent into a hook shape and fitted onto one of the pins (10).

3. The takeoff aid tool according to claim 1, characterized in that: The angle adjustment mechanism includes support rods (11) located on both sides of the catapult frame (2). A row of insertion holes (12) is provided on both sides of the base plate (1). One end of the support rod (11) is hinged to the catapult frame (2), and the other end of the support rod (11) is bent inward and inserted into one of the insertion holes (12).

4. The takeoff aid tool according to claim 1, characterized in that: The locking mechanism includes a hook (13) located at the lower rear end of the push plate (9) and a bracket (14) located at the rear of the hook (13) and fixed to the panel (7). The bracket (14) is provided with a rotating shaft (15), and a hook rod (16) is rotatably connected to the rotating shaft (15). The hook part of the hook rod (16) is connected to the hook (13).

5. The takeoff aid tool according to claim 4, characterized in that: The distance between the rear end of the hook rod (16) and the pivot (15) is more than twice the distance between the front end of the hook rod (16) and the pivot (15).

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