Unmanned aerial vehicle damping support for geographic surveying and mapping

Abstract

The unmanned aerial vehicle damping support comprises an unmanned aerial vehicle body, a support part is rotationally connected to the position, close to the outermost side, of the bottom of the unmanned aerial vehicle body, a positioning block is fixed to the position, close to the bottom, of the side face of the unmanned aerial vehicle body, a buffering assembly is arranged on the positioning block, and the buffering assembly comprises a buffering rod; a through hole is formed in the positioning block, and the buffer rod moves in the through hole. According to the unmanned aerial vehicle, the buffering assembly is arranged, after the unmanned aerial vehicle body falls down and makes contact with the ground, the support part can rotate upwards after collision and extrude the buffering assembly, and the buffering assembly is shrunk to conduct buffering and damping on force generated by collision; the effect that collision force generated after the unmanned aerial vehicle body falls to the ground is buffered and damped through the buffering assembly is achieved, and the problems that when an existing surveying and mapping unmanned aerial vehicle falls to the ground, a support rigidly collides with the ground, and consequently the support is damaged and the unmanned aerial vehicle rolls over are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of UAV mapping, in particular to a shock-absorbing bracket for a UAV used in geographical mapping. Background Technique

[0002] Surveying and mapping is a way of measuring and drawing relevant geological information such as geographical structures, and it is a way of measuring relevant data of geographical information and then drawing a three-dimensional model. It is widely used in many fields such as environmental monitoring and disaster assessment. With the development of science and technology, it has now developed into satellite and UAV surveying and mapping, which can perform surveying and mapping operations accurately and quickly.

[0003] In UAV surveying and mapping, aerial surveying and mapping operations are carried out by installing surveying and mapping instruments on the UAV. When the UAV used for surveying and mapping lands on the ground, the bracket on the UAV will have a rigid collision with the ground. Such a collision may cause damage to the support, and in severe cases, the UAV may tip over.

[0004] Therefore, how to provide a shock-absorbing bracket for a UAV used in geographical mapping is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0005] An object of the utility model is to provide a shock-absorbing bracket for a UAV used in geographical mapping. The utility model solves the problems that when the existing UAV for surveying and mapping lands on the ground, the bracket will have a rigid collision with the ground, resulting in damage to the bracket and tipping over of the UAV.

[0006] A shock-absorbing bracket for a UAV used in geographical mapping according to an embodiment of the utility model includes a UAV body. A bracket member is rotatably connected to the bottom of the UAV body near the outermost side. A positioning block is fixed to the side of the UAV body near the bottom. A buffer assembly is arranged on the positioning block. The buffer assembly includes a buffer rod. A through hole is formed in the positioning block. The buffer rod is movably arranged inside the through hole. A guiding groove is formed on the upper surface of the bracket member corresponding to the position of the buffer assembly. The bottom end of the buffer assembly is movably arranged inside the guiding groove.

[0007] A rotating shaft is arranged at the bottom of the bracket member, and a placing wheel is arranged on the rotating shaft.

[0008] The number of the bracket members is two. The two bracket members are arranged in an "eight" shape at the bottom of the UAV body. The two bracket members are axially symmetrically arranged with the symmetry axis of the UAV body as the axis of symmetry. The number of sets of the buffer assembly, the guiding groove and the placing wheel corresponding to each bracket member is three.

[0009] The buffer assembly further includes a buffer spring and a pulley assembly. A limiting block is arranged at the top end of the buffer rod. A limiting ring is arranged on the surface of the buffer rod at a position below the positioning block. The buffer spring is movably sleeved on the surface of the buffer rod at a position between the limiting ring and the positioning block.

[0010] The pulley assembly includes a fixed rod, a transverse pulley, and a longitudinal pulley. The number of transverse pulleys corresponding to each set of buffer rods is two. Two sets of sliding grooves are provided inside the guide groove corresponding to the positions of the two transverse pulleys. The fixed rod is fixed to the bottom end face of the buffer rod. The two transverse pulleys are arranged on both sides of the fixed rod and are rotatably connected to the rotating buffer rod through bearings. The two transverse pulleys move inside the two sets of sliding grooves. The longitudinal pulley is arranged in the middle of the fixed rod. The longitudinal pulley is located on the axis of symmetry of the two transverse pulleys and is also rotatably connected to the buffer rod through a bearing. The longitudinal pulley moves inside the guide groove.

[0011] The beneficial effects of the present utility model are as follows:

[0012] By providing a buffer assembly, after the UAV body falls and contacts the ground, the support member will rotate upward and squeeze the buffer assembly after the collision, causing the buffer assembly to contract to buffer and dampen the force generated by the collision, achieving the effect of buffering and damping the collision force generated when the UAV body falls to the ground through the buffer assembly, and solving the problem that the existing surveying and mapping UAV will cause the support to collide rigidly with the ground when it falls to the ground, resulting in damage to the support and rollover of the UAV.

[0013] By providing placement wheels, after the support member contacts the ground, the placement wheels will slide on the ground after the support member is collided, so as to increase the smoothness of the rotation of the two support members and improve the damping effect. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 It is an overall three-dimensional flow chart of a shock-absorbing bracket for a geographical surveying and mapping UAV proposed by the present utility model.

[0016] Figure 2 It is a cross-sectional three-dimensional flow chart of the position of the buffer rod in the buffer assembly of a shock-absorbing bracket for a geographical surveying and mapping UAV proposed by the present utility model.

[0017] Figure 3 It is a cross-sectional three-dimensional flow chart of the position of the pulley assembly in the buffer assembly of a shock-absorbing bracket for a geographical surveying and mapping UAV proposed by the present utility model.

[0018] Figure 4 It is a three-dimensional flow chart of the buffer assembly of a shock-absorbing bracket for a geographical surveying and mapping UAV proposed by the present utility model.

[0019] Attached drawing reference numerals: 1, UAV body; 2, support member; 3, positioning block; 4, buffer assembly; 5, buffer rod; 6, through hole; 7, guiding groove; 8, rotating shaft; 9, placing wheel; 10, buffer spring; 11, pulley assembly; 12, limiting block; 13, limiting ring; 14, fixing rod; 15, transverse pulley; 16, longitudinal pulley; 17, sliding groove. Detailed implementation manners

[0020] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] Embodiment 1

[0022] Refer to Figure 1 and Figure 2 As shown in FIGS. 1 and 2, it includes a UAV body 1. A support member 2 is rotatably connected to the bottom of the UAV body 1 near the outermost side. The number of the support members 2 is two, and the two support members 2 are arranged in an "eight" shape at the bottom of the UAV body 1, aiming to increase the support range of the support member 2 and improve the stability of landing. The two support members 2 are axially symmetrically arranged with the symmetry axis of the UAV body 1 as the axis of symmetry. The purpose of the symmetrical arrangement is to make the forces on both sides balanced after the UAV body 1 lands on the ground and collides with the ground, so that the UAV body 1 is not easily overturned. A positioning block 3 is fixed to the side of the UAV body 1 near the bottom. A buffer assembly 4 is arranged on the positioning block 3. The buffer assembly 4 includes a buffer rod 5. A through hole 6 is formed in the positioning block 3, and the buffer rod 5 moves inside the through hole 6. It should be noted that a damping ring is arranged inside the through hole 6, which is mainly designed to prevent the buffer assembly 4 from reciprocating up and down. A guiding groove 7 is formed in the upper surface of the support member 2 corresponding to the position of the buffer assembly 4, and the bottom end of the buffer assembly 4 moves inside the guiding groove 7. The number of the buffer assembly 4, the guiding groove 7 and the placing wheel 9 corresponding to each support member 2 is three groups, so that the buffer assembly 4 covers a wider range on the support member 2, which can bring better shock absorption effect;

[0023] Refer to Figure 2 , Figure 3 and Figure 4, the buffer assembly 4 further includes a buffer spring 10 and a pulley assembly 11. A limit block 12 is provided at the top end of the buffer rod 5, and a limit ring 13 is provided on the surface of the buffer rod 5 at a position below the positioning block 3. The buffer spring 10 is movably sleeved on the surface of the buffer rod 5 at a position between the limit ring 13 and the positioning block 3. The buffer spring 10 is sleeved on the surface of the buffer rod 5 to provide a downward force to the buffer rod 5, so that the buffer rod 5 pushes the support member 2. When the support member 2 and the buffer rod 5 are not stressed, the support member 2, the buffer rod 5 and the buffer spring 10 are in a balanced state. The sliding assembly pulls the support member 2 inside the guide groove 7. In this way, when the buffer rod 5 moves, it will drive the support member 2 to move through the pulley assembly 11 and the guide groove 7. The pulley assembly 11 includes a fixed rod 14, a transverse pulley 15 and a longitudinal pulley 16. The number of transverse pulleys 15 corresponding to each buffer rod 5 is two. Two sets of sliding grooves 17 are provided inside the guide groove 7 at positions corresponding to the two transverse pulleys 15. The fixed rod 14 is fixed to the bottom end surface of the buffer rod 5. The two transverse pulleys 15 are arranged on both sides of the fixed rod 14 and are rotatably connected to the rotating buffer rod 5 through bearings. The two transverse pulleys 15 move inside the two sets of sliding grooves 17 and move along the sliding grooves 17. The two transverse pulleys 15 are hung in the sliding grooves 17, so that the support member 2 can move up and down following the transverse pulleys 15. The longitudinal pulley 16 is arranged at the middle position of the fixed rod 14 to make the two transverse pulleys 15 move smoothly. The longitudinal pulley 16 is located on the axis of symmetry of the two transverse pulleys 15. The longitudinal pulley is used to reduce the force received by the two transverse pulleys. The longitudinal pulley 16 is also rotatably connected to the buffer rod 5 through a bearing. The longitudinal pulley 16 moves inside the guide groove 7. During operation, when the UAV body 1 lands on the ground, the support member 2 first contacts the ground to receive the collision force. The collision force squeezes the support member 2 upward. When the support member 2 rotates on the UAV body 1, it will squeeze the two transverse pulleys 15 and a longitudinal pulley 16 through the guide groove 7 and the sliding grooves 17. While the support member 2 rotates, the transverse pulleys 15 and the longitudinal pulley 16 move inside the sliding grooves 17 and the guide groove 7 and also receive an upward force. After being stressed, the transverse pulleys 15 and the longitudinal pulley 16 will push the buffer rod 5 upward through the fixed rod 14. The buffer spring 10 on the buffer rod 5 will be squeezed and contracted. By the contraction of the buffer spring 10, the collision force is buffered, thereby achieving the purpose of bracket shock absorption.

[0024] Embodiment 2

[0025] Reference Figure 1 and Figure 3, a rotating shaft 8 is provided at the bottom of the support member 2, and a placing wheel 9 is arranged on the rotating shaft 8. Due to the friction on the ground, in order to improve the smoothness of the rotation of the support member 2, the placing wheel 9 is provided here. After the placing wheel 9 contacts the ground, the placing wheel 9 rotates to reduce the friction between the support member 2 and the ground, so that the support frame rotates more smoothly to achieve a better buffering and shock absorption effect.

[0026] 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 of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A shock-absorbing bracket for a UAV for geographic surveying and mapping, characterized in that: The invention comprises an unmanned aerial vehicle body (1), wherein a support member (2) is rotatably connected to the bottom of the unmanned aerial vehicle body (1) near the outermost position, a positioning block (3) is fixed to the side of the unmanned aerial vehicle body (1) near the bottom position, a buffer assembly (4) is arranged on the positioning block (3), the buffer assembly (4) comprises a buffer rod (5), a through hole (6) is formed on the positioning block (3), the buffer rod (5) moves inside the through hole (6), a guide groove (7) is formed on the upper surface of the support member (2) at a position corresponding to the buffer assembly (4), and the bottom end of the buffer assembly (4) moves inside the guide groove (7).

2. The shock-absorbing bracket for a UAV for geographic surveying and mapping according to claim 1 is characterized in that: A rotating shaft (8) is rotatably provided at the bottom of the support member (2), and a placement wheel (9) is provided on the rotating shaft (8).

3. The shock-absorbing bracket for a UAV for geographic surveying and mapping according to claim 2 is characterized in that: The number of the support members (2) is two, and the two support members (2) are arranged in an "eight" shape at the bottom of the drone body (1). The two support members (2) are arranged axially symmetrically with the symmetry axis of the drone body (1) as the symmetry axis, and the number of corresponding buffer components (4), guide grooves (7) and placement wheels (9) on each support member (2) is three groups.

4. The shock-absorbing bracket for a UAV for geographic surveying and mapping according to claim 3 is characterized in that: The buffer assembly (4) further comprises a buffer spring (10) and a pulley assembly (11); a limit block (12) is arranged at the top end of the buffer rod (5); a limit ring (13) is arranged on the surface of the buffer rod (5) below the positioning block (3); and the buffer spring (10) is movably sleeved on the surface of the buffer rod (5) between the limit ring (13) and the positioning block (3).

5. The shock-absorbing bracket for a UAV for geographic surveying and mapping according to claim 4 is characterized in that: The pulley assembly (11) comprises a fixed rod (14), a transverse pulley (15) and a longitudinal pulley (16), wherein each group of buffer rods (5) corresponds to two transverse pulleys (15), and two groups of slide grooves (17) are provided inside the guide groove (7) at positions corresponding to the two transverse pulleys (15). The fixed rod (14) is fixed to the bottom end surface of the buffer rod (5), and the two transverse pulleys (15) are arranged on both sides of the fixed rod (14) and are rotatably connected to the rotating buffer rod (5) through bearings. The two transverse pulleys (15) move inside the two groups of slide grooves (17), and the longitudinal pulley (16) is arranged at a middle position of the fixed rod (14), and the longitudinal pulley (16) is located on the symmetric axis of the two transverse pulleys (15). The longitudinal pulley (16) is also rotatably connected to the buffer rod (5) through bearings, and the longitudinal pulley (16) moves inside the guide groove (7).

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