Amphibious unmanned aerial vehicle undercarriage

Abstract

The utility model discloses an amphibious unmanned aerial vehicle undercarriage, and relates to the field of unmanned aerial vehicle auxiliary equipment. The utility model relates to an amphibious unmanned aerial vehicle undercarriage which comprises a connecting plate used for being detachably connected with the bottom face of a vehicle body of an unmanned aerial vehicle. The connecting frame is constructed on the bottom surface of the connecting plate; the supporting plates serve as bearing surfaces of the landing gear and are of a long strip shape, a pair of supporting plates are arranged below the connecting plate and are arranged in parallel, a wedge-shaped block is installed on one face of each supporting plate, and the wedge-shaped end of each wedge-shaped block is arranged downwards; the problem that in the take-off process of an existing amphibious unmanned aerial vehicle landing gear, tension between the landing gear and the water surface suddenly disappears, and consequently an unmanned aerial vehicle cannot take off stably is solved.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicle auxiliary equipment, in particular to an amphibious unmanned aerial vehicle landing gear. Background Art

[0002] A drone is an unmanned aircraft that is controlled by a radio remote control device and a self-contained program control device. Currently, the main models available in the drone industry application market are multi-rotor drones for a single usage scenario. This situation restricts the use of drones in two aspects.

[0003] Among them, for amphibious drones, after landing on the water surface, due to the large contact area between the bottom of the landing gear and the water surface, when the amphibious drone takes off from the water surface, under the action of the water surface tension, the power mechanism needs to output high power to make the drone leave the water surface. At the moment the landing gear leaves the water surface, the water surface tension disappears, but at this time the power mechanism still has a timely high power output, so that the drone will suddenly accelerate upwards at the moment it leaves the water surface, which is not conducive to the stable take-off of the drone. Utility Model Content

[0004] The utility model aims to provide an amphibious UAV landing gear to solve the problem that the tension between the landing gear and the water surface suddenly disappears during the take-off process of the existing amphibious UAV landing gear, causing the UAV to be unable to take off smoothly.

[0005] In order to solve the above problems, the utility model adopts the following technical means:

[0006] An amphibious unmanned aerial vehicle landing gear, comprising:

[0007] A connection plate, used for disassembly and connection with the bottom surface of the drone body;

[0008] A connecting frame, constructed on the bottom surface of the connecting plate;

[0009] The support plate, serving as the receiving surface of the landing gear, is constructed in the shape of a long strip. A pair of the support plates are provided below the connecting plate. The two support plates are arranged in parallel. A wedge block is installed on one side of the support plate, and the wedge end of the wedge block is arranged downward.

[0010] Preferably, the top surface of the connecting plate is constructed with a hook structure for detachable connection with the bottom surface of the drone body.

[0011] Furthermore, a recessed sliding groove is provided on the side of the support plate, and an extension plate is installed in the sliding groove through a telescopic mechanism, and the extension plate is completely retracted into the sliding groove or partially extended out of the sliding groove.

[0012] Furthermore, a sealing rubber ring is installed around the inner wall of the sliding groove, the inner ring of the sealing rubber ring is fitted with the outer wall of the expansion plate, and a ventilation channel is constructed in the support plate, one end of the ventilation channel is connected to the inner cavity of the sliding groove, and the other end passes through the top surface of the support plate.

[0013] Furthermore, the telescopic mechanism includes a demagnetizing compression spring, both ends of which are respectively connected to a side of the expansion plate facing the sliding groove and a side of the sliding groove facing the expansion plate, the side of the sliding groove on which the demagnetizing compression spring is provided is equipped with an electromagnet, and the side of the expansion plate on which the demagnetizing compression spring is provided is equipped with an iron sheet, and the position of the iron sheet is set corresponding to the position of the electromagnet.

[0014] Furthermore, the control circuit of the electromagnet extends from the top surface of the support plate into the connecting frame, passes through the connecting plate along the connecting frame, enters the body of the drone, and communicates with the control mechanism.

[0015] During use, the utility model has the following beneficial effects:

[0016] After the landing gear is connected to the drone through the connecting plate, a pair of horizontally arranged long strip support plates can provide a larger contact area, providing buoyancy for the drone when it is parked on the water surface. And the use of the wedge block is conducive to breaking the surface tension of the water surface when the drone takes off from the water surface, thereby reducing the take-off power. Moreover, with the setting of the wedge block, as the drone takes off, the contact area between the wedge block and the water surface gradually decreases, and the surface tension between the water surface and the support plate gradually decreases. In this way, when the drone's fee control system is set up, it can also match the gradually decreasing power output during take-off. In this way, when the landing gear is completely out of the water, it can effectively avoid the sudden and substantial disappearance of the surface tension, which causes the drone to take off unstably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the support plate of the utility model.

[0019] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Figure 4 for Figure 1 Schematic diagram of the front view structure.

[0021] Figure 5 for Figure 4 Schematic diagram of the AA section structure.

[0022] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] Among them, 1-connecting plate, 2-connecting frame, 3-supporting plate, 4-wedge block, 5-hook structure, 6-sliding groove, 7-expansion plate, 8-sealing rubber ring, 9-ventilation channel, 10-demagnetization compression spring, 11-electromagnet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Please refer to Figures 1 to 6 As shown, an amphibious UAV landing gear comprises:

[0031] A connecting plate 1, used for disassembly and connection with the bottom surface of the drone body;

[0032] A connecting frame 2 is constructed on the bottom surface of the connecting plate 1;

[0033] The support plate 3, serving as the receiving surface of the landing gear, is constructed in the shape of a long strip. A pair of the support plates 3 is provided below the connecting plate 1. The two support plates 3 are arranged in parallel. A wedge block 4 is installed on one side of the support plate 3, and the wedge end of the wedge block 4 is arranged downward.

[0034] In this way, after the landing gear is connected to the drone through the connecting plate 1, a pair of horizontally arranged long strip support plates 3 can provide a larger contact area and provide buoyancy for the drone when it is parked on the water surface. And the role of the wedge block 4 is helpful to break the surface tension of the water surface when the drone takes off from the water surface, thereby reducing the take-off power. Moreover, by using the setting of the wedge block 4, as the drone takes off, the contact area between the wedge block 4 and the water surface gradually decreases, and the surface tension between the water surface and the support plate 3 gradually decreases. In this way, when the drone fee control system is set, the gradually decreasing power output can also be matched during take-off. In this way, when the landing gear is completely out of the water surface, it is effectively avoided that the surface tension suddenly disappears significantly, causing the drone to take off unstably.

[0035] Furthermore, in order to facilitate the installation of the landing gear and the UAV, the top surface of the connecting plate 1 is constructed with a hook structure 5 for detachable connection with the bottom surface of the UAV body.

[0036] Furthermore, in order to improve the welfare of the drone when it stops on the water surface and prevent the drone from sinking, a side of the support plate 3 is provided with an inwardly sunken sliding groove 6, and an expansion plate 7 is installed in the sliding groove 6 through a telescopic mechanism, and the expansion plate 7 is completely retracted into the sliding groove 6 or partially extended out of the sliding groove 6.

[0037] In this way, by setting the telescopic mechanism, the expansion plate 7 can be pushed out of the sliding groove 6, thereby increasing the contact area between the landing gear and the water surface in the parked state, thereby improving the buoyancy of the landing gear. When it is necessary to take off, under the action of the telescopic mechanism, the expansion plate 7 is completely retracted into the sliding groove 6, thereby avoiding the tension between the landing gear and the water surface caused by the setting of the expansion plate 7, and avoiding the influence of the setting of the expansion plate 7 on the take-off of the drone.

[0038] Furthermore, a sealing rubber ring 8 is installed around the inner wall of the sliding groove 6, and the inner ring of the sealing rubber ring 8 is fitted with the outer wall of the expansion plate 7. A ventilation channel 9 is constructed in the support plate 3, and one end of the ventilation channel 9 is connected to the inner cavity of the sliding groove 6, and the other end passes through the top surface of the support plate 3.

[0039] In this way, the sealing rubber ring 8 is used to prevent a large amount of water from entering the sliding groove 6 and affecting the telescopic mechanism. In addition, the ventilation channel 9 is used to prevent negative pressure from forming in the sliding groove 6 and affecting the airtightness of the sealing rubber ring 8 during the movement of the expansion plate 7.

[0040] More specifically, with regard to the setting of the telescopic mechanism, the telescopic mechanism includes a demagnetizing compression spring 10, the two ends of which are respectively connected to a side of the expansion plate 7 facing the sliding groove 6 and a side of the sliding groove 6 facing the expansion plate 7, the side of the sliding groove 6 on which the demagnetizing compression spring 10 is provided is equipped with an electromagnet 11, the side of the expansion plate 7 on which the demagnetizing compression spring 10 is provided is equipped with an iron sheet, and the position of the iron sheet is set corresponding to the position of the electromagnet 11.

[0041] In this way, under the action of the electromagnet 11, the electromagnet 11 absorbs the iron sheet, allowing the expansion plate 7 to be completely retracted into the sliding groove 6. When the expansion plate 7 needs to be extended, the electromagnet 11 stops working, and under the action of the demagnetizing compression spring 10, the expansion plate 7 is pushed out of the sliding groove 6.

[0042] And if Figure 3 As shown, a limiting mechanism is also constructed in the sliding groove 6, and the limiting mechanism is used to prevent the expansion board 7 from being completely pushed out of the sliding groove 6, thereby preventing the expansion board 7 from falling off.

[0043] Furthermore, the control circuit of the electromagnet 11 extends from the top surface of the support plate 3 into the connecting frame 2, passes through the connecting plate 1 along the connecting frame 2, enters the body of the drone, and communicates with the control mechanism.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An amphibious UAV landing gear, characterized in that: include: A connection plate (1) is used for being detachably connected to the bottom surface of the drone body; A connecting frame (2) constructed on the bottom surface of the connecting plate (1); The support plate (3) serves as a receiving surface of the landing gear and is constructed in the shape of a long strip. A pair of the support plates (3) is provided below the connecting plate (1). The two support plates (3) are arranged in parallel. A wedge block (4) is installed on one side of the support plate (3), and the wedge end of the wedge block (4) is arranged downward.

2. The amphibious UAV landing gear according to claim 1, characterized in that: The top surface of the connection plate (1) is provided with a hook structure (5) for being detachably connected to the bottom surface of the body of the drone.

3. The amphibious UAV landing gear according to claim 1, characterized in that: An inwardly recessed sliding groove (6) is provided on the side surface of the support plate (3), an expansion plate (7) is installed in the sliding groove (6) via a telescopic mechanism, and the expansion plate (7) is completely retracted into the sliding groove (6) or partially extends out of the sliding groove (6).

4. The amphibious UAV landing gear according to claim 3, characterized in that: A sealing rubber ring (8) is installed around the inner wall of the sliding groove (6), and the inner ring of the sealing rubber ring (8) is arranged in contact with the outer wall of the expansion plate (7). A ventilation channel (9) is constructed in the support plate (3), and one end of the ventilation channel (9) is connected to the inner cavity of the sliding groove (6), and the other end passes through the top surface of the support plate (3).

5. An amphibious UAV landing gear according to claim 3 or 4, characterized in that: The telescopic mechanism comprises a demagnetizing compression spring (10), the two ends of the demagnetizing compression spring (10) being respectively connected to a side of the expansion plate (7) facing the sliding groove (6) and a side of the sliding groove (6) facing the expansion plate (7), the side of the sliding groove (6) on which the demagnetizing compression spring (10) is provided being equipped with an electromagnet (11), and the side of the expansion plate (7) on which the demagnetizing compression spring (10) is provided being equipped with an iron sheet, the position of the iron sheet being arranged corresponding to the position of the electromagnet (11).

6. The amphibious UAV landing gear according to claim 5, characterized in that: The control circuit of the electromagnet (11) extends from the top surface of the support plate (3) into the connecting frame (2), passes through the connecting plate (1) along the connecting frame (2), enters the body of the drone, and communicates with the control mechanism.

Images