Unmanned aerial vehicle and ejection device

Abstract

The unmanned aerial vehicle comprises a base, the top end of the base is rotationally connected with a first rail frame through a connecting base, the other end of the first rail frame is connected with a second rail frame through a telescopic assembly, the inner wall of the first rail frame and the inner wall of the second rail frame are connected with the same ejection frame in a sliding mode, and the ejection frame is connected with the first rail frame and the second rail frame in a sliding mode. The telescopic assembly comprises a contraction cavity and guide grooves, the contraction cavity is formed in the inner wall of the bottom end of the first rail frame, the guide grooves are formed in the inner walls of the two sides of the contraction cavity, the second rail frame is in sliding fit with the inner wall of the contraction cavity, a sliding block is arranged on the side wall of one end of the second rail frame, and protrusions for limiting the sliding block are arranged on the inner walls of one ends of the guide grooves. A connecting rod is arranged at one end of the second rail frame, and an inserting groove matched with the connecting rod is formed in the side wall of one end of the first rail frame. Through the arrangement of the telescopic assemblies, the connecting frames and the limiting pins, the device can be folded during storage and transportation, the occupied space of the device is reduced, and the device is convenient to move.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle and an ejection device. Background Art

[0002] The existing take-off methods of unmanned aerial vehicles mainly include runway take-off, vertical take-off, ejection take-off, etc.; the ejection take-off method of unmanned aerial vehicles is a commonly used launch method in recent years, which has the advantages of good economy and good adaptability, does not generate signals such as light, sound, heat and smoke, is convenient for the concealment of the take-off site, and the cost of consumable materials and support guarantee is relatively low each time the unmanned aerial vehicle is launched.

[0003] After retrieval, a patent with the Chinese patent publication number CN211055409U discloses an unmanned aerial vehicle ejection device, which includes a control device and an ejection track. The control device is installed at the tail end of the ejection track, and brackets and adjustable support legs are respectively installed at both ends of the bottom of the ejection track. An armature is arranged in the track groove of the ejection track, and an interception component for reducing the speed of the armature is arranged at one end of the track groove away from the control device.

[0004] This patent intercepts the armature through an interception component with the function of reducing the speed of the armature. Compared with the traditional ejection method steps, it does not require the step of the armature slowly decelerating after pushing the unmanned aerial vehicle, so as to greatly shorten the ejection track; however, the length of the ejection track of this patent is fixed, which occupies a large space during transportation, and requires multiple people to cooperate for handling during handling, and the operation is inconvenient. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to provide an unmanned aerial vehicle and an ejection device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An ejection device includes a base. The top end of the base is rotatably connected with a first track frame through a connecting seat. The other end of the first track frame is connected with a second track frame through a telescopic component. The inner walls of the first track frame and the second track frame are slidably connected with the same ejection frame. A power component for driving the ejection frame to move is arranged inside the first track frame and the second track frame. The telescopic component includes a contraction cavity and a guiding groove. The contraction cavity is opened on the inner wall of the bottom end of the first track frame. The guiding groove is opened on the inner walls on both sides of the contraction cavity. One end of the guiding groove is a semi-circular arc. The second track frame is slidably matched with the inner wall of the contraction cavity. A sliding block is arranged on the side wall of one end of the second track frame. The sliding block is slidably matched with the guiding groove. A protrusion for limiting the sliding block is arranged on the inner wall of one end of the guiding groove. A connecting rod is arranged at one end of the second track frame. A slot matched with the connecting rod is opened on the side wall of one end of the first track frame.

[0008] As a further solution of the present utility model: a connecting frame is connected to the outer wall of the bottom end of one end of the second track frame away from the first track frame. A threaded telescopic rod is rotatably connected to the bottom end of the connecting frame. A limit pin is arranged on one side of the connecting frame, and the limit pin is in limit sliding fit with the rotating shaft of the threaded telescopic rod.

[0009] As a further solution of the present utility model: protective shells are hinged to the outer walls on both sides of the base. A connecting buckle is arranged at one end of the protective shell, and a handle is arranged on the outer wall of one side of the protective shell.

[0010] As a further solution of the present utility model: the connecting seat and the base are connected by a connecting component. The connecting component includes a connecting disk and a rotating disk. The connecting disk is arranged on the outer wall of the top end of the base, and the rotating disk is rotatably connected to the outer wall of the top end of the connecting disk.

[0011] As a further solution of the present utility model: the connecting seat is arranged on the outer wall of the top end of the rotating disk, and limiting grooves are arranged in a circular array on the outer wall of the top end of the connecting disk.

[0012] As a further solution of the present utility model: a positioning rod is slidably connected to one side of the rotating disk. The bottom end of the positioning rod is inserted into the limiting groove, and a return spring is sleeved on the outer wall of the positioning rod.

[0013] As a further solution of the present utility model: a moving plate is connected to the side wall of the positioning rod. Limiting blocks are oppositely arranged on the inner wall of the rotating disk. The moving plate is in limit sliding fit with the limiting blocks, and there is an avoidance cavity between the top end of the moving plate and the rotating disk.

[0014] The embodiment of the present application further includes a drone cooperating with the catapult frame. The drone can be any existing small fixed-wing model.

[0015] Compared with the prior art, the present utility model provides a catapult device, which has the following

[0016] Beneficial effects:

[0017] 1. In the present utility model, by providing a telescopic component, a connecting frame and a limit pin, the device can be folded during storage and transportation, reducing the occupied space of the device and being convenient for handling.

[0018] 2. In the present utility model, by providing a protective shell and a connecting buckle, the surroundings of the first track frame and the second track frame are shielded and protected after folding, avoiding damage to the first track frame and the second track frame caused by impact during storage and transportation.

[0019] 3. In the present utility model, by providing a connecting component, it is convenient for a single person to adjust the catapulting direction without the need for multiple people to move and adjust the device.

[0020] The parts not involved in this device are the same as those in the prior art or can be implemented using the prior art. The structure of this utility model is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a drone and a catapult device proposed by this utility model;

[0022] Figure 2 FIG. 2 is a schematic diagram of the internal structure of a catapult device proposed by this utility model;

[0023] Figure 3 FIG. 3 is a schematic diagram of a partial structure of a guide groove of a catapult device proposed by this utility model;

[0024] Figure 4 FIG. 4 is a schematic diagram of the connection structure between a first track frame and a second track frame of a catapult device proposed by this utility model;

[0025] Figure 5 FIG. 5 is a schematic diagram of the structure of a connection component of a catapult device proposed by this utility model.

[0026] In the figure: 1, base; 2, protective shell; 3, connection buckle; 4, connection seat; 5, first track frame; 6, second track frame; 7, connection frame; 8, threaded telescopic rod; 9, limit pin; 10, catapult frame; 11, contraction cavity; 12, guide groove; 13, slider; 14, connecting rod; 15, connection component; 16, connection disk; 17, rotating disk; 18, limit groove; 19, positioning rod; 20, moving plate; 21, limit block; 22, drone. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] Embodiment 1

[0030] A catapult device, as Figures 1 to 4As shown in the figure, it includes a base 1. The top end of the base 1 is rotatably connected to a first track frame 5 through a connecting seat 4. The other end of the first track frame 5 is connected to a second track frame 6 through a telescopic component. The inner walls of the first track frame 5 and the second track frame 6 are slidably connected to the same ejection frame 10. A power component for driving the movement of the ejection frame 10 is arranged inside the first track frame 5 and the second track frame 6. The power component is a commonly used component in this technical field. The bottom outer wall of one end of the second track frame 6 far from the first track frame 5 is connected to a connecting frame 7. The bottom end of the connecting frame 7 is rotatably connected to a threaded telescopic rod 8. A limit pin 9 is arranged on one side of the connecting frame 7. The limit pin 9 is in limit sliding fit with the rotating shaft of the threaded telescopic rod 8.

[0031] The telescopic component includes a contraction cavity 11 and a guide groove 12. The contraction cavity 11 is opened on the inner wall of the bottom end of the first track frame 5. The guide groove 12 is opened on the inner walls on both sides of the contraction cavity 11. One end of the guide groove 12 is a semi-circle. The second track frame 6 is slidably matched with the inner wall of the contraction cavity 11. A slider 13 is arranged on the side wall of one end of the second track frame 6. The slider 13 is slidably matched with the slider 13. A protrusion for limiting the slider 13 is arranged on the inner wall of one end of the guide groove 12. A connecting rod 14 is arranged at one end of the second track frame 6. A slot matched with the connecting rod 14 is opened on the side wall of one end of the first track frame 5.

[0032] Protective shells 2 are hinged on the outer walls on both sides of the base 1. A connecting buckle 3 is arranged at one end of the protective shell 2. The connecting buckle 3 is an existing technology, so it will not be elaborated here. A handle is arranged on the outer wall of one side of the protective shell 2.

[0033] When launching, the device as a whole is moved to the launch position through the handle, the connecting buckle 3 is unlocked, and the two protective shells 2 are unfolded to both sides of the base 1, and the combination of the first track frame 5 and the second track frame 6 is exposed. The threaded telescopic rod 8 is rotated to support one end of the second track frame 6. After the adjustment is completed, the limit pin 9 limits the relative rotation of the threaded telescopic rod 8 and the connecting frame 7. Then, the length of the threaded telescopic rod 8 is adjusted according to the launch angle. The second track frame 6 is pulled to one side. The second track frame 6 moves relative to the first track frame 5 in the contraction cavity 11, and the slider 13 moves along the guide groove 12. When the slider 13 moves to the arc end of the guide groove 12, the connecting rod 14 moves away from the first track frame 5. At this time, the slider 13 is made to continue moving along the guide groove 12, and one end of the second track frame 6 is made to move towards the first track frame 5, and the connecting rod 14 is inserted into the slot, so that the combination of the first track frame 5 and the second track frame 6 is unfolded. The second track frame 6 is supported by the threaded telescopic rod 8. Then, the ejection frame 10 is driven to move through the power component in the second track frame 6 for ejection. After use, the above operations are repeated in reverse to fold the first track frame 5, the second track frame 6 and the threaded telescopic rod 8, and the protective shells 2 are closed to store the first track frame 5 and the second track frame 6.

[0034] By setting the telescopic component, the connecting frame 7 and the limit pin 9, the device can be folded during storage and transportation, reducing the occupied space of the device.

[0035] By providing the protective shell 2 and the connecting buckle 3, the surroundings of the first track frame 5 and the second track frame 6 are shielded and protected after folding, preventing the first track frame 5 and the second track frame 6 from being damaged by impact during storage and transportation.

[0036] Embodiment 2

[0037] A catapult device. On the basis of Embodiment 1, the following improvements are made in this embodiment, as Figure 1 、 Figure 5 shown, the connecting seat 4 and the base 1 are connected by a connecting component 15. The connecting component 15 includes a connecting disk 16 and a rotating disk 17. The connecting disk 16 is arranged on the outer wall of the top end of the base 1. The rotating disk 17 is rotatably connected to the outer wall of the top end of the connecting disk 16. The connecting seat 4 is arranged on the outer wall of the top end of the rotating disk 17. The outer wall of the top end of the connecting disk 16 is provided with a limit groove 18 in a circular array. One side of the rotating disk 17 is slidably connected with a positioning rod 19. The bottom end of the positioning rod 19 is inserted into the limit groove 18. A return spring is sleeved on the outer wall of the positioning rod 19. A moving plate 20 is connected to the side wall of the positioning rod 19. The inner wall of the rotating disk 17 is provided with limit blocks 21 opposite to each other. The moving plate 20 is in limit sliding fit with the limit blocks 21. There is an avoidance cavity between the top end of the moving plate 20 and the rotating disk 17.

[0038] During use, when the device deviates in direction due to the reaction force of catapulting or when the catapulting direction needs to be adjusted, pull up the positioning rod 19 upward to make the moving plate 20 move upward along the limit blocks 21. When the moving plate 20 moves to the avoidance cavity, the bottom end of the positioning rod 19 disengages from the limit groove 18, and the rotating disk 17 and the connecting disk 16 can rotate relative to each other. At this time, rotate the positioning rod 19 to drive the moving plate 20 to rotate, so that the moving plate 20 is limited by the limit blocks 21 and cannot slide along the limit blocks 21. Then lift one end of the second track frame 6, and drive the rotating disk 17 to rotate according to the direction to be adjusted to make the adjustment. After the adjustment is completed, reverse the positioning rod 19 to make the positioning rod 19 reset under the push of the return spring.

[0039] By providing the connecting component 15, it is convenient for a single person to adjust the catapulting direction without the need for multiple people to move and adjust the device.

[0040] Embodiment 3

[0041] As Figure 1 shown, this embodiment of the present application further includes a drone 22 cooperating with the catapult frame 10. The drone 22 can be any existing small fixed-wing model.

[0042] Working principle: During launch, the entire device is moved to the launch position through the handle, the connecting buckle 3 is unlocked, and the two protective shells 2 are unfolded to both sides of the base 1, exposing the combination of the first rail frame 5 and the second rail frame 6. Rotate the threaded telescopic rod 8 so that the threaded telescopic rod 8 supports one end of the second rail frame 6. After the adjustment is completed, the limit pin 9 limits the relative rotation between the threaded telescopic rod 8 and the connecting frame 7. Then, adjust the length of the threaded telescopic rod 8 according to the launch angle, pull the second rail frame 6 to one side, and the second rail frame 6 moves relative to the first rail frame 5 in the contraction cavity 11, and the slider 13 moves along the guide groove 12. When the slider 13 moves to the arc end of the guide groove 12, the connecting rod 14 moves away from the first rail frame 5. At this time, let the slider 13 continue to move along the guide groove 12, make one end of the second rail frame 6 move towards the first rail frame 5, and the connecting rod 14 is inserted into the slot, so that the combination of the first rail frame 5 and the second rail frame 6 is unfolded. The second rail frame 6 is supported by the threaded telescopic rod 8, and then the ejection frame 10 is driven to move for ejection through the power component in the second rail frame 6. After use, reverse the above operations to fold the first rail frame 5, the second rail frame 6 and the threaded telescopic rod 8, close the protective shell 2, and store the first rail frame 5 and the second rail frame 6; when the device deviates in direction due to the reaction force of ejection or needs to adjust the ejection direction, pull up the positioning rod 19, so that the moving plate 20 moves upward along the limiting block 21. When the moving plate 20 moves to the avoidance cavity, the bottom end of the positioning rod 19 disengages from the limiting groove 18, and the rotating disk 17 and the connecting disk 16 can rotate relative to each other. At this time, rotate the positioning rod 19 to drive the moving plate 20 to rotate, so that the moving plate 20 is limited by the limiting block 21 and cannot slide along the limiting block 21. Then lift one end of the second rail frame 6, and let the second rail frame 6 drive the rotating disk 17 to rotate for adjustment according to the direction to be adjusted. After the adjustment is completed, reverse the positioning rod 19, and let the positioning rod 19 reset under the push of the return spring.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A catapult device, comprising a base (1), characterized in that, The top end of the base (1) is rotatably connected to a first track frame (5) through a connecting seat (4). The other end of the first track frame (5) is connected to a second track frame (6) through a telescopic assembly. The inner walls of the first track frame (5) and the second track frame (6) are slidably connected to the same ejection frame (10). A power assembly for driving the ejection frame (10) to move is arranged inside the first track frame (5) and the second track frame (6). The telescopic assembly includes a contraction cavity (11) and a guide groove (12). The contraction cavity (11) is opened on the inner wall of the bottom end of the first track frame (5). The guide groove (12) is opened on the inner walls on both sides of the contraction cavity (11). One end of the guide groove (12) is a semi-circle. The second track frame (6) is slidably matched with the inner wall of the contraction cavity (11). A slider (13) is arranged on the side wall of one end of the second track frame (6). The slider (13) is slidably matched with the slider (13). A protrusion for limiting the slider (13) is arranged on the inner wall of one end of the guide groove (12). A connecting rod (14) is arranged at one end of the second track frame (6). A slot matched with the connecting rod (14) is opened on the side wall of one end of the first track frame (5).

2. The catapult device according to claim 1, characterized in that, A connecting frame (7) is connected to the outer wall of the bottom end of the end of the second track frame (6) far from the first track frame (5). A threaded telescopic rod (8) is rotatably connected to the bottom end of the connecting frame (7). A limit pin (9) is arranged on one side of the connecting frame (7). The limit pin (9) is in limit sliding fit with the rotating shaft of the threaded telescopic rod (8).

3. The ejection device according to claim 1, characterized in that, Protective shells (2) are hinged to the outer walls on both sides of the base (1). A connecting buckle (3) is arranged at one end of the protective shell (2). A handle is arranged on the outer wall of one side of the protective shell (2).

4. A catapult device according to claim 1, characterized in that, The connecting seat (4) is connected to the base (1) through a connecting component (15). The connecting component (15) includes a connecting disc (16) and a rotating disc (17). The connecting disc (16) is arranged on the outer wall of the top end of the base (1). The rotating disc (17) is rotatably connected to the outer wall of the top end of the connecting disc (16).

5. An ejection device according to claim 4, characterized in that, The connecting seat (4) is arranged on the outer wall of the top end of the rotating disc (17). Limiting grooves (18) are annularly and arrayedly arranged on the outer wall of the top end of the connecting disc (16).

6. A catapult device according to claim 4, wherein, A positioning rod (19) is slidably connected to one side of the rotating disc (17). The bottom end of the positioning rod (19) is inserted into the limiting groove (18). A return spring is sleeved on the outer wall of the positioning rod (19).

7. An ejection device according to claim 6, characterized in that, A moving plate (20) is connected to the side wall of the positioning rod (19). Limiting blocks (21) are oppositely arranged on the inner wall of the rotating disc (17). The moving plate (20) is in limit sliding fit with the limiting blocks (21). There is an avoidance cavity between the top end of the moving plate (20) and the rotating disc (17).

8. A drone (22), characterized in that, The unmanned aerial vehicle (22) cooperates with the ejection frame (10). The unmanned aerial vehicle (22) is any existing small fixed-wing model.

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