Inertial sensor limiting structure

Abstract

The utility model discloses an inertial sensor limiting structure which comprises a sensor body, a supporting frame is fixedly installed at the bottom of the sensor body, rubber balls are installed on the periphery of the supporting frame, an upper neck part is arranged at the top end of each rubber ball and connected with the supporting frame, upper clamping frames are installed at the two ends of the supporting frame, and the upper clamping frames are connected with the rubber balls. A mounting bottom plate is arranged under the supporting frame, a lower neck part is arranged at the bottom end of the rubber ball and connected with the mounting bottom plate, and lower clamping frames are mounted at the two ends of the mounting bottom plate. By arranging the upper clamping frame and the lower clamping frame, when the rubber ball is installed, the upper neck part of the rubber ball can be firmly fixed through connection and fixation of the upper clamping frame and the supporting frame, and the lower neck part of the rubber ball can be firmly fixed through connection and fixation of the lower clamping frame and the installation bottom plate. Therefore, the rubber ball is prevented from falling off due to inertia generated when the unmanned aerial vehicle suddenly stops at a high speed.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle (UAV) aircraft, in particular to an inertial sensor limiting structure. Background Art

[0002] An inertial sensor is a commonly used detection instrument, which includes an accelerometer and a gyroscope. The accelerometer is used to detect the acceleration component of an object, and the gyroscope is used to detect the angle information of an object. Generally, an IMU is installed at the center of gravity of an object. Since it has the function of measuring the three-axis attitude angle (or angular rate) and acceleration of an object, an IMU is usually used as a core component of navigation and guidance, and is widely used in vehicles, ships, robots, unmanned aerial vehicles and other equipment that require motion control. In an unmanned aerial vehicle, an inertial sensor is used to feedback the fuselage attitude of the unmanned aerial vehicle. The inertial sensor is generally installed on a bracket, and a conductive wire is led out from the inertial sensor to connect with the electronic components in the unmanned aerial vehicle. However, due to the high-speed movement of the drone, the inertial sensor will be in the environment, and excessive vibration will cause the drift of the gyroscope and accelerometer of the inertial sensor to be too large, making it difficult to ensure the accuracy of its measurement accuracy. Therefore, in order to reduce the impact of the fuselage vibration on the IMU, a shock-absorbing ball will be set on the bracket to connect with the fuselage, thereby achieving a certain shock-absorbing and limiting effect.

[0003] The existing sensor limit structure is provided with a round hole, and the sensor is installed in the round hole by relying on the elastic deformation of a rubber ball. In order to facilitate installation, the necks at both ends of the rubber ball will not be made much larger than the round hole. However, since the rubber ball is relatively soft, the inertia generated when the drone makes an emergency stop at high speed will cause the rubber ball to fall out of the round hole, thereby damaging the sensor. Utility Model Content

[0004] The purpose of the utility model is to provide an inertial sensor limiting structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inertial sensor limiting structure, comprising a sensor body, a support frame fixedly installed at the bottom of the sensor body, and rubber balls installed around the support frame, an upper neck is arranged at the top of the rubber ball, and the upper neck is connected to the support frame, upper clamping frames are installed at both ends of the support frame, and the upper clamping frames are connected to the upper neck, a mounting base is arranged directly below the support frame, a lower neck is arranged at the bottom end of the rubber ball, and the lower neck is connected to the mounting base, lower clamping frames are installed at both ends of the mounting base, and the lower clamping frames are connected to the lower neck.

[0006] By adopting the above technical solution, when installing the rubber ball, the upper neck of the rubber ball can be firmly fixed by connecting and fixing the upper bracket to the support frame, and the lower neck of the rubber ball can be firmly fixed by connecting and fixing the lower bracket to the installation base plate, thereby preventing the rubber ball from falling out due to the inertia generated when the drone makes an emergency stop at high speed.

[0007] Preferably, the specific model of the sensor body is DETA, and a wire is provided at one end thereof.

[0008] By adopting the above technical solution, the wire at one end of the sensor body can be connected to the electronic components in the unmanned aerial vehicle.

[0009] Preferably, upper clamping grooves are provided around the support frame, and the upper clamping grooves are clamped and connected with the upper neck, and the upper clamping grooves are also clamped and connected with the limiting grooves a provided at both ends of the upper clamping frame.

[0010] By adopting the above technical solution, the upper neck can be clamped into the support frame and a limiting operation can be performed on it through the upper clamping frame.

[0011] Preferably, a protrusion is provided at each end of the support frame, and the protrusion is engaged and connected with an opening provided on one side of the upper clamping frame, and a limit clamp is provided on one side of the upper clamping frame.

[0012] By adopting the above technical solution, the upper clamping frame can be quickly aligned and connected with the supporting frame through the protrusion, and the limiting clamp can improve the firmness of fixing the upper clamping frame on the supporting frame.

[0013] Preferably, a mounting hole b is opened in the middle of the upper bracket, a screw is arranged at the mounting hole b, and the screw passes through the mounting hole b and is threadedly connected with the mounting hole a.

[0014] By adopting the above technical solution, the upper bracket can be fixed on the support frame by screws.

[0015] Preferably, lower clamping grooves are provided around the installation base plate, and the lower clamping grooves are clamped and connected with the lower neck, and the lower clamping grooves are also clamped and connected with the limiting grooves b provided at both ends of the lower clamp frame.

[0016] By adopting the above technical solution, the lower neck can be clamped into the installation base plate and a limiting operation can be performed on it through the lower clamping frame.

[0017] Preferably, a mounting hole c is provided in the middle of the mounting base plate, a screw is also provided at the mounting hole c, and the screw passes through the mounting hole c and is threadedly connected to the mounting hole d.

[0018] By adopting the above technical solution, the lower card frame can be fixed on the installation base plate by screws.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By providing an upper bracket and a lower bracket, when installing the rubber ball, the upper bracket can be connected and fixed to the support frame to firmly fix the upper neck of the rubber ball, and the lower bracket can be connected and fixed to the installation base plate to firmly fix the lower neck of the rubber ball, thereby preventing the rubber ball from falling out due to the inertia generated when the drone stops at high speed;

[0021] 2. A protrusion is provided at each end of the support frame, and the protrusion is engaged with the opening provided on one side of the upper bracket, so that the upper bracket can be quickly aligned and connected with the support frame through the protrusion, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the overall parts of this application;

[0024] Figure 3 This is a schematic diagram of the card rack structure for this application;

[0025] Figure 4 This is a schematic diagram of the card rack structure in this application.

[0026] In the figure: 1. sensor body; 2. support frame; 3. upper card slot; 4. bump; 5. mounting hole a; 6. rubber ball; 7. upper neck; 8. lower neck; 9. upper card frame; 10. limit slot a; 11. limit clip; 12. opening; 13. mounting hole b; 14. mounting base; 15. lower card slot; 16. mounting hole c; 17. lower card frame; 18. limit slot b; 19. mounting hole d. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1 , Figure 2 and Figure 4The utility model provides a technical solution: an inertial sensor limiting structure, including a sensor body 1, the specific model of the sensor body 1 is DETA20, and a wire is arranged at one end thereof, which can be connected to the electronic components in the unmanned aerial vehicle through the wire at one end of the sensor body 1, a support frame 2 is fixedly installed at the bottom of the sensor body 1, and a rubber ball 6 is installed around the support frame 2, and an upper neck 7 is arranged on the top of the rubber ball 6, an upper card slot 3 is opened around the support frame 2, and the upper card slot 3 is connected with the upper neck 7 by card engagement, an upper card frame 9 is installed at both ends of the support frame 2, and the upper card frame 9 is connected with the upper neck 7, and the upper card slot 3 is also connected with the limiting slot a10 opened at both ends of the upper card frame 9, so that the upper neck 7 can be inserted into the support frame 2 and a limiting operation is performed on it through the upper card frame 9.

[0029] See also Figure 1 , Figure 2 and Figure 3 A mounting base plate 14 is arranged directly below the support frame 2, a lower neck portion 8 is arranged at the bottom end of the rubber ball 6, lower card slots 15 are arranged around the mounting base plate 14, and the lower card slots 15 are engaged and connected with the lower neck portion 8, lower card frames 17 are arranged at both ends of the mounting base plate 14, and the lower card frames 17 are connected with the lower neck portion 8, and the lower card slots 15 are also engaged and connected with the limiting slots b18 arranged at both ends of the lower card frame 17, so that the lower neck portion 8 can be inserted into the mounting base plate 14, and a limiting operation can be performed on it through the lower card frame 17.

[0030] See also Figure 2 and Figure 4 A protrusion 4 is provided at each end of the support frame 2, and the protrusion 4 is engaged with an opening 12 opened on one side of the upper card frame 9, and a limiting clamp 11 is provided on one side of the upper card frame 9, so that the upper card frame 9 can be quickly aligned and connected with the support frame 2 through the protrusion 4, and the limiting clamp 11 can improve the firmness of the upper card frame 9 fixed on the support frame 2.

[0031] See also Figure 2 , Figure 3 and Figure 4 A mounting hole b13 is provided in the middle of the upper bracket 9, and a screw is provided at the mounting hole b13, and the screw passes through the mounting hole b13 and is threadedly connected to the mounting hole a5, so that the upper bracket 9 can be fixed to the support frame 2 by the screw. A mounting hole c16 is provided in the middle of the mounting base plate 14, and a screw is also provided at the mounting hole c16, and the screw passes through the mounting hole c16 and is threadedly connected to the mounting hole d19, so that the lower bracket 17 can be fixed to the mounting base plate 14 by the screw.

[0032] Working principle: First, align the lower neck 8 at the bottom end of the rubber ball 6 with the lower card slots 15 opened around the mounting base plate 14, and then install the lower card frame 17 to both sides of the mounting base plate 14 to fix the position of the lower neck 8, and then use screws to pass through the mounting hole c16 and threadedly connect with the mounting hole d19 to fix the lower card frame 17 on the mounting base plate 14. At the same time, the mounting base plate 14 is fixed inside the drone by screws, and then align the upper neck 7 at the top of the rubber ball 6 with the upper card slots 3 opened around the support frame 2, and then install the upper card frame 9 to both sides of the support frame 2 to fix the position of the upper neck 7, and then use screws to pass through the mounting hole b13 and threadedly connect with the mounting hole a5 to fix the upper card frame 9 on the support frame 2, so as to prevent the rubber ball 6 from falling out due to the inertia generated when the drone stops at high speed;

[0033] Secondly, a protrusion 4 is provided at each end of the support frame 2, and the protrusion 4 is engaged with the opening 12 opened on one side of the upper bracket 9, so that the upper bracket 9 can be quickly aligned and connected with the support frame 2 through the protrusion 4, thereby improving the installation efficiency.

[0034] 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. An inertial sensor limit structure, comprising a sensor body (1), characterized in that: A support frame (2) is fixedly mounted at the bottom of the sensor body (1), and a rubber ball (6) is mounted around the support frame (2); an upper neck (7) is arranged at the top of the rubber ball (6), and the upper neck (7) is connected to the support frame (2); upper clamping frames (9) are mounted at both ends of the support frame (2), and the upper clamping frames (9) are connected to the upper neck (7); a mounting base plate (14) is arranged directly below the support frame (2); a lower neck (8) is arranged at the bottom end of the rubber ball (6), and the lower neck (8) is connected to the mounting base plate (14); lower clamping frames (17) are mounted at both ends of the mounting base plate (14), and the lower clamping frames (17) are connected to the lower neck (8).

2. The inertial sensor limiting structure according to claim 1, characterized in that: The specific model of the sensor body (1) is DETA20, and a wire is provided at one end thereof.

3. The inertial sensor limiting structure according to claim 1, characterized in that: The support frame (2) is provided with upper clamping grooves (3) around its periphery, and the upper clamping grooves (3) are clamped and connected with the upper neck (7), and the upper clamping grooves (3) are also clamped and connected with limiting grooves a (10) provided at both ends of the upper clamping frame (9).

4. The inertial sensor limiting structure according to claim 1, characterized in that: A protrusion (4) is provided at each end of the support frame (2), and the protrusion (4) is engaged and connected with an opening (12) provided on one side of the upper clamping frame (9), and a limit clamp (11) is provided on one side of the upper clamping frame (9).

5. The inertial sensor limiting structure according to claim 3, characterized in that: A mounting hole b (13) is provided in the middle of the upper bracket (9), a screw is provided at the mounting hole b (13), and the screw passes through the mounting hole b (13) and is threadedly connected with the mounting hole a (5).

6. The inertial sensor limiting structure according to claim 1, characterized in that: The installation base plate (14) is provided with lower clamping grooves (15) around its periphery, and the lower clamping grooves (15) are clamped and connected with the lower neck (8), and the lower clamping grooves (15) are also clamped and connected with limiting grooves b (18) provided at both ends of the lower clamping frame (17).

7. The inertial sensor limiting structure according to claim 6, characterized in that: A mounting hole c (16) is provided in the middle of the mounting base plate (14), and a screw is also provided at the mounting hole c (16), and the screw passes through the mounting hole c (16) and is threadedly connected with the mounting hole d (19).

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