Damping frame for surveying and mapping unmanned aerial vehicle

Abstract

The shock absorption frame comprises a sliding groove rod, a telescopic mechanism with the telescopic function of a multi-stage electric push rod is arranged on the sliding groove rod, the telescopic mechanism comprises a sliding rod, the output end of the multi-stage electric push rod is fixedly connected into a connecting block, and the output end of the multi-stage electric push rod is fixedly connected into the sliding rod. And an air spring shock absorber is mounted at the bottom end of the sliding rod. According to the unmanned aerial vehicle, the output end of the multi-stage electric push rod can drive the sliding rod to be pushed out, the sliding rod drives the air spring shock absorber to be obliquely pushed out, the telescopic range of the undercarriage on the air spring shock absorber is increased, and therefore the stability and trafficability of the surveying and mapping unmanned aerial vehicle on complex terrains are improved; an electromagnetic valve, an air pump, a pressure sensor and an ECU in the air spring shock absorber freely adjust the shock absorption effect by adjusting the air pressure of the inflation space, and more flexible and reliable shock absorption guarantee is provided for the surveying and mapping unmanned aerial vehicle.

Description

Technical Field

[0001] The utility model relates to the field of shock-absorbing frames on unmanned aerial vehicles (UAVs), in particular to a shock-absorbing frame for surveying and mapping UAVs. Background Art

[0002] The shock-absorbing frame on the surveying and mapping UAV is an important component in the design of the surveying and mapping UAV. The shock-absorbing frame on the surveying and mapping UAV is mainly used to reduce the vibration generated when the fuselage takes off and lands during flight. The existing patent (publication number: CN214165279U) discloses a shock-absorbing landing gear for a surveying and mapping UAV for surveying and mapping geographic information, which relates to the technical field of shock-absorbing landing gear, including a UAV mounting plate, and a first buffer member is provided at the four corners of the bottom of the UAV mounting plate. The bottom of the first buffer member is fixedly installed with a landing gear mounting plate, and the four corners of the bottom of the landing gear mounting plate are fixedly installed with a landing gear top plate; the patent has the following problems: when the surveying and mapping UAV takes off and lands in complex terrain such as mountains, deserts, and snowy environments, the telescopic range of its shock-absorbing frame is fixed, so that it may become unstable during landing. Therefore, in response to the above problems, the applicant proposed a shock-absorbing frame for a surveying and mapping UAV. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a shock-absorbing frame for a surveying and mapping UAV.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A shock-absorbing frame for a surveying and mapping drone includes a slide rod, on which is provided a telescopic mechanism with a multi-stage electric push rod telescopic function. The telescopic mechanism includes a sliding rod. In order to facilitate the output end of the multi-stage electric push rod to drive the sliding rod to slide, the output end of the multi-stage electric push rod is fixedly connected to a connecting block, and an air spring shock absorber is installed at the bottom end of the sliding rod.

[0006] Preferably, a surveying and mapping UAV is further included, wherein four slide rods are fixedly installed at the bottom of the surveying and mapping UAV at an angle. In order to make the sliding rods slide out at an angle in the slide rods, sliding rods are slidably connected in the slide grooves of the four slide rods.

[0007] Preferably, limit ends are provided on the four slide rods. In order to facilitate the installation of the multi-stage electric push rod, the input ends of the multi-stage electric push rod are fixedly installed in the limit ends, and a connecting block is provided on the top of the sliding rod; the UAV shock absorber frame consists of a slide rod, a multi-stage electric push rod, a sliding rod and an air spring shock absorber.

[0008] Preferably, the mapping drone is equipped with a sensor, and the air spring shock absorber is equipped with a solenoid valve, an air pump, a pressure sensor and an ECU. The above structure can be found in the attached drawings of the specification.Figure 4 , sensors are used to monitor the status and environmental conditions of the vehicle in real time, such as vehicle height, acceleration, speed, road conditions and driver input, etc. These sensors send the collected data to the ECU, which is the controller. Since sensors are widely used in the field of drones and belong to existing technologies, their working principles will not be described in detail here; ECU is the core of the air spring shock absorber control system, it receives data from sensors and processes it according to preset algorithms and logic. ECU can identify the current status of the surveying and mapping drone and issue control instructions accordingly; solenoid valve is a key component for controlling gas flow. In air spring shock absorbers, solenoid valves are usually used to control the gas channel between the main air chamber and the gas tank or the atmosphere. When the ECU issues a command, the solenoid valve will open Or close the corresponding gas channel to realize the filling or discharge of gas; the air pump is used to fill the main air chamber of the air spring shock absorber with compressed air. When the suspension needs to be raised, the ECU will control the air pump to start and send compressed air into the main air chamber. The air pump is usually driven by an electric motor and is equipped with a pressure sensor to monitor the output pressure of the air pump; the pressure sensor is used to monitor the air pressure inside the air spring shock absorber. They send the detected air pressure value to the ECU so that the ECU can understand the current status of the suspension in real time. The ECU adjusts the working status of the solenoid valve and the air pump according to the feedback of the pressure sensor to keep the suspension within the set height range; the above structure belongs to the existing technology, and its working principle will not be elaborated here; the mapping drone is equipped with a charging module.

[0009] Preferably, the multi-stage electric push rod, sensor, solenoid valve, air pump, pressure sensor and ECU are all electrically connected to the charging module; the multi-stage electric push rod is controlled by the ECU.

[0010] The utility model has the following beneficial effects:

[0011] In the utility model, the output end of the multi-stage electric push rod drives the sliding rod to be pushed out, and the sliding rod drives the air spring shock absorber to be tilted and pushed out, thereby increasing the telescopic range of the landing gear air spring shock absorber, thereby improving the stability and passability of the surveying and mapping UAV on complex terrain; the solenoid valve, air pump, pressure sensor and ECU in the air spring shock absorber freely adjust the shock absorption effect by adjusting the air pressure of the inflation space, providing a more flexible and reliable shock absorption guarantee for the surveying and mapping UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a shock-absorbing frame for a surveying and mapping UAV proposed in the utility model;

[0013] Figure 2 This is a schematic diagram of the disassembled structure of a shock-absorbing frame for a surveying and mapping UAV proposed in the utility model;

[0014] Figure 3 This is a schematic diagram of the overall structure of a shock-absorbing frame for a surveying and mapping UAV proposed in this utility model:

[0015] Figure 4 This is a schematic diagram of the automatic telescopic structure of the air spring shock absorber of the shock absorption frame for a surveying and mapping UAV proposed in the utility model.

[0016] In the figure: 1. Surveying and mapping drone; 2. Slide rod; 20. Limit end; 3. Multi-stage electric push rod; 4. Sliding rod; 40. Connecting block; 5. Air spring shock absorber. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-4 A shock-absorbing frame for a surveying and mapping drone includes a slide rod 2, on which a telescopic mechanism with a telescopic function of a multi-stage electric push rod 3 is provided. The telescopic mechanism includes a sliding rod 4. In order to facilitate the output end of the multi-stage electric push rod 3 to drive the sliding rod 4 to slide, the output end of the multi-stage electric push rod 3 is fixedly connected to the connecting block 40, and the bottom end of the sliding rod 4 is installed with an air spring shock absorber 5.

[0019] In this embodiment, a surveying and mapping drone 1 is included, and four slide rods 2 are fixedly installed at an angle on the bottom of the surveying and mapping drone 1. In order to make the sliding rod 4 slide out at an angle in the slide rod 2, the slide grooves of the four slide rods 2 are all slidably connected with sliding rods 4.

[0020] In this embodiment, a limit end 20 is provided on the four slide rods 2. In order to facilitate the installation of the multi-stage electric push rod 3, the input end of the multi-stage electric push rod 3 is fixedly installed in the limit end 20, and a connecting block 40 is provided on the top of the sliding rod 4; the UAV shock absorber frame consists of a slide rod 2, a multi-stage electric push rod 3, a sliding rod 4 and an air spring shock absorber 5.

[0021] In this embodiment, the mapping drone 1 is equipped with a sensor, and the air spring shock absorber 5 is equipped with a solenoid valve, an air pump, a pressure sensor and an ECU. The above structure can be seen in the accompanying drawings of the specification. Figure 4, sensors are used to monitor the status and environmental conditions of the vehicle in real time, such as vehicle height, acceleration, speed, road conditions and driver input, etc. These sensors send the collected data to the ECU, which is the controller. Since sensors are widely used in the field of drones and belong to existing technologies, their working principles will not be described in detail here; ECU is the core of the air spring shock absorber 5 control system. It receives data from sensors and processes it according to preset algorithms and logic. ECU can identify the current status of the surveying and mapping drone 1 and issue control instructions accordingly; solenoid valve is a key component for controlling gas flow. In the air spring shock absorber 5, the solenoid valve is usually used to control the gas channel between the main air chamber and the gas tank or the atmosphere. When the ECU issues a command, the solenoid valve will open Or close the corresponding gas channel to realize the filling or discharge of gas; the air pump is used to fill the main air chamber of the air spring shock absorber 5 with compressed air. When the suspension needs to be raised, the ECU will control the air pump to start and send compressed air into the main air chamber. The air pump is usually driven by an electric motor and is equipped with a pressure sensor to monitor the output pressure of the air pump; the pressure sensor is used to monitor the air pressure inside the air spring shock absorber 5. They send the detected air pressure value to the ECU so that the ECU can understand the current state of the suspension in real time. The ECU adjusts the working state of the solenoid valve and the air pump according to the feedback of the pressure sensor to keep the suspension within the set height range; the above structure belongs to the prior art, and its working principle will not be elaborated here; the surveying and mapping drone 1 is equipped with a charging module.

[0022] In this embodiment, the multi-stage electric push rod 3, sensor, solenoid valve, air pump, pressure sensor and ECU are all electrically connected to the charging module; the multi-stage electric push rod 3 is controlled by the ECU.

[0023] The use method and advantages of this utility model: When the shock-absorbing frame for surveying and mapping UAV is used, the working process is as follows:

[0024] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, when the surveying and mapping UAV 1 takes off and lands in an area with complex terrain, such as a mountain, desert, or snowy environment, the operator remotely controls the ECU through a remote controller. The ECU controls the multi-stage electric push rod 3 to extend. In the process of the output end of the multi-stage electric push rod 3 pushing from the input end, the output end of the multi-stage electric push rod 3 pushes the connecting block 40 and the sliding rod 4 out. The sliding rod 4 drives the air spring shock absorber 5 to tilt and push out. When the surveying and mapping UAV 1 takes off and lands in an environment with complex terrain, the extension and retraction range of the landing gear air spring shock absorber 5 is increased, thereby improving the stability and passability of the surveying and mapping UAV 1 on complex terrain.

[0025] By installing a solenoid valve, an air pump, a pressure sensor and an ECU in the air spring shock absorber 5, the setting of the air spring shock absorber 5 can effectively absorb the impact energy during the take-off and landing of the surveying and mapping UAV 1, and can also freely adjust the shock absorption effect by adjusting the air pressure of the inflation space, providing a more flexible and reliable shock absorption guarantee for the surveying and mapping UAV 1.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shock-absorbing mount for a surveying and mapping UAV, characterized by: The invention comprises a slide rod (2), a telescopic mechanism having a telescopic function of a multi-stage electric push rod (3) is provided on the slide rod (2), the telescopic mechanism comprises a sliding rod (4), the output end of the multi-stage electric push rod (3) is fixedly connected to a connecting block (40), and an air spring shock absorber (5) is installed at the bottom end of the sliding rod (4).

2. The shock-absorbing mount for a surveying and mapping UAV according to claim 1, characterized in that: It also comprises a surveying and mapping drone (1), wherein four slide rods (2) are fixedly installed at an angle on the bottom of the surveying and mapping drone (1), and a sliding rod (4) is slidably connected to each of the four slide rods (2).

3. The shock-absorbing mount for a surveying and mapping UAV according to claim 2, characterized in that: The four slide rods (2) are provided with limited ends (20), and the input ends of the multi-stage electric push rods (3) are fixedly installed in the limited ends (20). The top of the sliding rod (4) is provided with a connecting block (40).

4. The shock-absorbing mount for a surveying and mapping UAV according to claim 1, characterized in that: The mapping drone (1) is equipped with a sensor, and the air spring shock absorber (5) is equipped with a solenoid valve, an air pump, a pressure sensor and an ECU.

5. The shock-absorbing mount for a surveying and mapping UAV according to claim 4, characterized in that: The multi-stage electric push rod (3), sensor, solenoid valve, air pump, pressure sensor and ECU are all electrically connected to the charging module.

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