Surveying and mapping unmanned aerial vehicle take-off and landing frame of contact type flexible damping and buffering structure

Abstract

The utility model discloses a surveying and mapping unmanned aerial vehicle take-off and landing frame of a contact type flexible damping buffer structure, which comprises a support, the support is used for supporting an unmanned aerial vehicle body, a buffer structure is arranged below the support, and the buffer structure utilizes the acting force generated in the falling process of the unmanned aerial vehicle to buffer the landing process of the unmanned aerial vehicle body. According to the surveying and mapping unmanned aerial vehicle take-off and landing frame of the contact type flexible damping and buffering structure, the cylinder is arranged below the support, the rotating shaft is arranged in the cylinder, the turbofan is arranged on the surface of the rotating shaft, when an unmanned aerial vehicle lands, descending airflow pushes the turbofan to rotate from the lower portion, and the turbofan rotates to drive the rotating shaft to rotate, so that the first connecting rod is driven to rotate, and the second connecting rod extends out of the cylinder; therefore, the supporting rod is driven to move to contact with the ground to achieve a buffering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a take-off and landing frame for a surveying and mapping unmanned aerial vehicle with a contact-type flexible shock-absorbing and buffering structure. Background Art

[0002] In surveying and mapping work, drones are very important auxiliary tools. They are increasingly used in surveying and mapping work. UAV equipment is operated by users through radio remote control. During the take-off and landing process, it is inevitable that they will collide with the ground. If the operation is wrong, it is easy to aggravate the collision force, which will cause damage to the airborne equipment.

[0003] In order to reduce the impact of take-off and landing, some current drone manufacturers solve the above problems by laying flexible take-off and landing platforms. However, this method cannot adapt to harsh environment applications and is inconvenient to carry. Utility Model Content

[0004] The purpose of the utility model is to provide a surveying and mapping UAV landing frame with a contact-type flexible shock-absorbing and buffering structure. A buffering structure is arranged under the bracket of the UAV, and the airflow generated when the UAV lands is used to drive the buffering structure to operate, thereby achieving buffering of the UAV landing process, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surveying and mapping UAV landing gear with a contact-type flexible shock-absorbing and buffering structure includes a bracket, which is used to support the UAV body, and is characterized in that a buffer structure is arranged below the bracket, and the buffer structure utilizes the airflow during the UAV's descent through a turbofan to achieve automatic pop-up protection.

[0006] Preferably, the buffer structure includes a cylinder, which is mounted on the lower surface of the bracket, a rotating shaft is rotatably provided inside the cylinder, and a turbofan is provided on one end surface of the rotating shaft, a wind shield is provided on the outer surface of the turbofan, a gear 1 is provided on the outer surface of the rotating shaft, a gear 2 is rotatably provided on the inner wall surface of the cylinder, the gear 2 is a toothless structure, and a connecting rod 1 is connected to the lower surface of the gear 2, the gear 1 is meshed with the gear 2, a strip opening is provided on the surface of the cylinder, and the length of the opening on the surface of the cylinder is longer than the length of the connecting rod 1, a connecting rod 2 is rotatably provided on the lower surface of the connecting rod 1, a support rod is provided through the surface of the connecting rod 2, a buffer block is provided at one end of the support rod, and a spring is provided at the other end of the support rod, and the other end of the spring is fixed inside the connecting rod 2.

[0007] By adopting the above technical solution, when the UAV lands, the airflow from below pushes the turbofan belt to rotate, thereby driving the rotating shaft to drive the connecting rod to move. When the connecting rod rotates and extends out of the cylinder, it drives the support rod to cushion the UAV.

[0008] Preferably, a protective structure is provided on the outer surface of the support rod, and the protective structure provides secondary protection to the drone through an airbag and a spring.

[0009] By adopting the above technical solution, the protective structure is used to protect the drone when the drone lands abnormally.

[0010] Preferably, the protective structure includes an airbag, which is a strip-shaped airbag that is narrow at both ends and wide in the middle. A push ring is provided on the outer surface sliding sleeve of the support rod. One end of the airbag is installed on the lower surface of connecting rod 2, and the other end of the airbag is fixed to the surface of the push ring.

[0011] By adopting the above technical solution, when the UAV falls abnormally, the downward airflow drives the push ring to move, thereby driving the airbag to change its shape, increasing the air resistance of the device, and providing a buffering protection for the UAV.

[0012] Preferably, the buffer structure is provided with four groups on the lower surface of the annular bracket, and two connecting rods (6) are symmetrically arranged inside the cylinder (2) in the buffer structure.

[0013] By adopting the above technical solution, multiple groups of buffer structures work together to increase the stability of the device during the landing of the UAV.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the take-off and landing frame of the surveying and mapping UAV with the contact-type flexible shock-absorbing and buffering structure:

[0015] 1. The device is provided with a cylinder under the bracket, a rotating shaft is provided in the cylinder, and a turbofan is provided on the surface of the rotating shaft. When the UAV lands, the descending airflow pushes the turbofan from below to rotate, and the rotation of the turbofan drives the rotary pump to rotate, thereby driving the first connecting rod to rotate, so that the second connecting rod extends out of the cylinder, thereby driving the support rod to move and contact the ground to achieve a buffering effect;

[0016] 2. In this device, the connecting rod 1 is rotatably connected to the rotating shaft, and the connecting rod 2 is rotatably connected to the connecting rod 1. When the UAV is not in use, the connecting rod 1 and the connecting rod 2 can be rotatably stored in the cylinder, which is convenient for the storage and transportation of the UAV. In addition, a wind shield is provided on the outer surface of the turbofan. When the UAV is flying, the turbofan will not rotate to drive the connecting rod 2 to extend;

[0017] 3. This device is provided with a strip airbag on the surface of the support rod, one end of the airbag is connected to the lower surface of the connecting rod, and the other end is fixed to the push ring on the surface of the support rod. When the UAV lands abnormally, the airflow pushes the push ring upward, and the push ring drives the airbag to move upward to deform the airbag, thereby increasing the air resistance of the device and having a buffering effect on the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 This is a schematic diagram of the top view of the cylinder structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-section structure of the cylinder of the utility model;

[0022] Figure 5 This is a front view structural diagram of the connecting rod 1 and the connecting rod 2 of the utility model.

[0023] In the figure: 1. bracket; 2. cylinder; 3. shaft; 4. turbofan; 5. wind shield; 6. connecting rod 1; 7. spring; 8. connecting rod 2; 9. support rod; 10. buffer block; 11. push ring; 12. airbag; 13. gear 1; 14. gear 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a contact-type flexible shock-absorbing and buffering structure for surveying and mapping UAV landing gear, including a bracket 1, a cylinder 2, a rotating shaft 3, a turbofan 4, a wind shield 5, a connecting rod 1 6, a spring 7, a connecting rod 2 8, a support rod 9, a buffer block 10, a push ring 11, an airbag 12, a gear 1 13, and a gear 2 14.

[0026] This device has the effect of buffering the landing of the drone, specifically:

[0027] A buffer structure is provided below the bracket 1. The buffer structure utilizes the force generated during the falling process of the drone to buffer the landing process of the drone body. The buffer structure includes a cylinder 2. The buffer structure includes a cylinder 2. The cylinder 2 is installed on the lower surface of the bracket 1. A rotating shaft 3 is rotatably provided inside the cylinder 2, and a turbofan 4 is provided on one end surface of the rotating shaft 3. A windshield 5 is provided on the outer surface of the turbofan 4. A gear 13 is provided on the outer surface of the rotating shaft 3. A gear 2 14 is rotatably provided on the inner wall surface of the cylinder 2. The gear 2 14 is a toothless structure, and the lower surface of the gear 2 14 is connected with a connecting rod. Rod 1 6, gear 1 13 meshes with gear 2 14, a strip opening is arranged on the surface of cylinder 2, and the length of the opening on the surface of cylinder 2 is longer than the length of connecting rod 1 6, connecting rod 2 8 is rotatably arranged on the lower surface of connecting rod 1 6, a support rod 9 is penetrated on the surface of connecting rod 2 8, a buffer block 10 is arranged at one end of the support rod 9, a spring 7 is arranged at the other end of the support rod 9, and the other end of the spring 7 is fixed inside the connecting rod 2 8, and four groups of buffer structures are arranged on the lower surface of the annular bracket 1, and two connecting rods 1 (6) are symmetrically arranged inside the cylinder (2) in the buffer structure;

[0028] like Figure 1 and Figure 2 The drone body is mounted on a bracket 1, and a buffer structure is provided below the bracket 1. When the drone descends and lands, the airflow pushes the turbofan 4 upward from below, and the airflow drives the turbofan 4 to rotate, and the turbofan 4 drives the rotating shaft 3 to rotate. Figure 3 When the shaft 3 rotates, it drives the gear 13 on the outer surface to rotate. The rotation of the gear 13 drives the gear 2 14 on both sides to rotate. When the gear 2 14 rotates, the gear 2 14 drives the connecting rod 1 6 below to rotate, and pushes the connecting rod 1 6 out of the opening on the surface of the cylinder 2. At this time, the toothless part of the gear 2 14 contacts the gear 13. Figure 5 , under the action of gravity, the connecting rod 2 8 rotates on the lower surface of the connecting rod 1 6 until it is perpendicular to the connecting rod 1 6. Figure 4 As shown, the support rod 9 first contacts the ground during the landing of the UAV, and the buffer block 10 at the lower end of the support rod 9 contacts the ground. At the same time, the spring 7 at one end of the support rod 9 is squeezed, and the spring 7 and the buffer block 10 work together to buffer the landing process of the UAV. After the landing of the UAV is completed, the handheld connecting rod 2 8 is rotated counterclockwise to fit with the connecting rod 1 6, and the connecting rod 1 6 and the connecting rod 2 8 are stored in the cylinder 2. When the UAV is launched, the turbofan 4 rotates in the opposite direction, thereby driving the gear 13 to rotate in the opposite direction. At this time, the gear 2 14 reverses and drives the connecting rod 1 6 to fit closely with the gear 1 13, thereby preventing the connecting rod 1 6 and the connecting rod 2 8 from extending.

[0029] This device has the effect of protecting the drone from abnormal landing, specifically:

[0030] The outer surface of the support rod 9 is provided with a protective structure, which uses an airbag 12 to protect the drone from abnormal falling. The protective structure includes the airbag 12, which is a strip-shaped airbag with narrow ends and wide in the middle. The outer surface of the support rod 9 is provided with a push ring 11, one end of the airbag 12 is installed on the lower surface of the connecting rod 8, and the other end of the airbag 12 is fixed to the surface of the push ring 11;

[0031] When the drone fails to land normally, it will fall rapidly. Figure 5 The airflow pushes the push ring 11 from below, pushing the push ring 11 to move upward on the surface of the support rod 9. The movement of the push ring 11 drives the airbag 12 to move upward and deform, so that the airbag 12 is deformed from a long strip to an umbrella shape, which has a buffering effect on the drone and prevents the drone from falling quickly. When the drone is flying normally, the push ring 11 and the airbag 12 are stored in the cylinder 2.

[0032] Working principle: When using the surveying and mapping UAV landing gear with the contact-type flexible shock-absorbing and buffering structure, the airflow pushes the turbofan 4 to rotate from the bottom, and the turbofan 4 drives the rotating shaft 3 to rotate. The rotation of the rotating shaft 3 drives the connecting rod 1 6 to move. The rotation of the connecting rod 1 6 drives the connecting rod 2 8 to rotate and extend out of the surface of the cylinder 2, so that the support rod 9 rotates downward and contacts the ground. The buffer block 10 and the spring 7 at one end of the support rod 9 work together to buffer the UAV. When the UAV descends rapidly, the airflow pushes the push ring 11 to move upward, and the upward movement of the push ring 11 drives the airbag 12 to move upward and deform, so that the airbag 12 is formed from a long strip into an umbrella shape, thereby increasing the air resistance of the UAV, slowing down the falling speed of the UAV, and increasing the overall practicality.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A landing frame for a surveying and mapping UAV with a contact-type flexible shock-absorbing and buffering structure, comprising a bracket (1), wherein the bracket (1) is used to support the UAV body, and is characterized in that: A buffer structure is provided below the bracket (1), and the buffer structure utilizes the airflow of the turbofan (4) during the descent of the drone to achieve automatic ejection protection.

2. According to claim 1, a contact-type flexible shock-absorbing and buffering structure for surveying and mapping UAV landing gear, characterized in that: The buffer structure comprises a cylinder (2), the cylinder (2) being mounted on the lower surface of the bracket (1), a rotating shaft (3) being rotatably arranged inside the cylinder (2), a turbofan (4) being arranged on one end surface of the rotating shaft (3), a wind shield (5) being arranged on the outer surface of the turbofan (4), a gear 1 (13) being arranged on the outer surface of the rotating shaft (3), a gear 2 (14) being rotatably arranged on the inner wall surface of the cylinder (2), the gear 2 (14) being a toothless structure, and a connecting rod 1 (6) being connected to the lower surface of the gear 2 (14), The gear one (13) is meshed with the gear two (14); a strip opening is provided on the surface of the cylinder (2); and the length of the opening on the surface of the cylinder (2) is longer than the length of the connecting rod one (6); a connecting rod two (8) is rotatably provided on the lower surface of the connecting rod one (6); a support rod (9) is penetrated through the surface of the connecting rod two (8); a buffer block (10) is provided at one end of the support rod (9); and a spring (7) is provided at the other end of the support rod (9); and the other end of the spring (7) is fixed inside the connecting rod two (8).

3. The contact-type flexible shock-absorbing and buffering structure of a surveying and mapping UAV landing frame according to claim 2 is characterized in that: The outer surface of the support rod (9) is provided with a protective structure, and the protective structure combines an air bag (12) with a spring (7) to provide secondary protection for the drone.

4. The landing gear of a surveying and mapping UAV with a contact-type flexible shock-absorbing and buffering structure according to claim 3 is characterized in that: The protective structure comprises an airbag (12), which is in the shape of a strip with narrow ends and a wide middle. A push ring (11) is provided on the outer surface of the support rod (9) for sliding. One end of the airbag (12) is mounted on the lower surface of the second connecting rod (8), and the other end of the airbag (12) is fixed on the surface of the push ring (11).

5. The contact-type flexible shock-absorbing and buffering structure of a surveying and mapping UAV landing frame according to claim 1 is characterized in that: The buffer structure is provided with four groups on the lower surface of the annular bracket (1), and two connecting rods (6) are symmetrically arranged inside the cylinder (2) in the buffer structure.

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