Magnetic survey extension rod connecting structure for unmanned aerial vehicle magnetic survey system

Abstract

The utility model belongs to the field of magnetic survey application equipment, and particularly relates to a magnetic survey extension rod connecting structure for an unmanned aerial vehicle magnetic survey system. Comprising a stretching rod and further comprises a connecting mechanism, the connecting mechanism comprises a connecting base used for being connected to the bottom of the unmanned aerial vehicle, the bottom of the connecting base is open, a rotating shaft is arranged between the top of the stretching rod and the connecting base, the stretching rod is arranged on the connecting base in a turnover mode through the rotating shaft, and wedge blocks are arranged on the two sides of the rotating shaft. The wedge block is arranged in the connecting base in a sliding mode, a push rod used for driving the wedge block to slide up and down is further arranged in the connecting base, and an inclined face matched with the wedge block is arranged at the top of the stretching rod. According to the utility model, through the arrangement of the connecting mechanism, the maintenance of the vertical state of the extension rod and the switching of the turnover state in the rising and falling state are effectively realized, the stability of the state of the high-precision vector magnetometer is further ensured, and meanwhile, the high-precision vector magnetometer is simple in structure, convenient to operate and suitable for large-scale popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of magnetic measuring application equipment, especially relates to a magnetic measuring stretch rod connecting structure for unmanned aerial vehicle magnetic measuring system. BACKGROUND

[0002] In the research and application process related to magnetic phenomena, magnetic field measurement technology is an important means. At present, in the fields of industrial production, national defense construction, scientific research, daily life, etc., magnetic field measurement technology plays a very important role.

[0003] The unmanned aerial vehicle magnetic measuring system is relied on the unmanned aerial vehicle to test the simulated magnetic field signal under the geomagnetic field condition. The high-precision vector magnetometer is used to measure the magnetic field generated by the simulated signal source to obtain the magnetic field intensity of the simulated signal source and the variation characteristics with distance.

[0004] The existing unmanned aerial vehicle magnetic measuring system comprises an unmanned aerial vehicle platform, an integrated power supply system, a data acquisition system (acquisition board and data card), a suspension system (safety rope, cable) and a sensor system (streamlined waterproof package, high-precision vector magnetometer). The high-precision vector magnetometer is mainly suspended below the unmanned aerial vehicle through the safety rope.

[0005] However, the safety rope will be blown by the wind in the environment or during the movement of the unmanned aerial vehicle, which will cause the high-precision vector magnetometer to swing, thereby affecting the accuracy of the measurement. Although the safety rope is replaced by a straight rod (stretch rod) to ensure that the high-precision vector magnetometer does not swing, the length of the straight rod needs to be at least 3 m or more, which will affect the take-off and landing of the unmanned aerial vehicle. INVENTION CONTENTS

[0006] The utility model discloses a kind of magnetic measuring stretch rod connecting structures for unmanned aerial vehicle magnetic measuring system, including stretch rod, still including connecting mechanism, the connecting mechanism includes the connecting seat for being connected in the bottom of unmanned aerial vehicle, the connecting seat bottom opening is provided, the top of stretch rod and connecting seat are provided with pivot, stretch rod is reversibly arranged on connecting seat by pivot, the both sides of pivot are provided with wedge, the wedge is slidably arranged in connecting seat, the push rod for driving wedge to slide up and down is further provided in connecting seat, the top of stretch rod is provided with inclined surface matched with wedge.

[0007] To achieve the above purpose, the utility model adopts the technical scheme that the utility model provides a magnetic measuring stretch rod connecting structure for unmanned aerial vehicle magnetic measuring system, including stretch rod, still including connecting mechanism, the connecting mechanism includes the connecting seat for being connected in the bottom of unmanned aerial vehicle, the connecting seat bottom opening is provided, the top of stretch rod and connecting seat are provided with pivot, stretch rod is reversibly arranged on connecting seat by pivot, the both sides of pivot are provided with wedge, the wedge is slidably arranged in connecting seat, the push rod for driving wedge to slide up and down is further provided in connecting seat, the top of stretch rod is provided with inclined surface matched with wedge.

[0008] As preferred, the bottom of the extension rod is provided with a walking roller, which is rotatably arranged at the bottom of the extension rod, and the rotating direction of the walking roller is consistent with the rotating direction of the rotating shaft.

[0009] As preferred, the inner wall of the connecting seat is further provided with a guide protrusion, and the wedge block is provided with a groove matched with the guide protrusion.

[0010] As preferred, the push rod is an electromagnetic push rod or an electric push rod.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0012] The utility model provides a magnetic measuring extension rod connecting structure for unmanned aerial vehicle magnetic measuring system, through the setting of connecting mechanism, effectively realize the keeping of extension rod vertical state and the switching of the overturning state under the take-off and landing state, further ensure the stability of high-precision vector magnetometer state, simultaneously, the utility model simple structure, convenient operation, be suitable for large scale popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing a simple introduction, obviously, the following description in the drawing is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0014] Fig. 1 The structure diagram of the magnetic measuring extension rod connecting structure for unmanned aerial vehicle magnetic measuring system provided for embodiment 1 is shown in the figure.

[0015] Fig. 2 The local sectional view of the magnetic measuring extension rod connecting structure for unmanned aerial vehicle magnetic measuring system provided for embodiment 1 is shown in the figure.

[0016] Fig. 3 The use state diagram of the magnetic measuring extension rod connecting structure for unmanned aerial vehicle magnetic measuring system provided for embodiment 1 is shown in the figure.

[0017] In the above figures, 1, extension rod, 11, walking roller, 12, roller frame, 13, rotating shaft, 14, inclined surface, 2, connecting seat, 21, wedge block, 211, groove, 22, push rod, 3, unmanned aerial vehicle. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing a simple introduction, obviously, the following description in the drawing is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, such as Figs. 1-3 As shown, this embodiment aims to solve the problem of easy swaying of high-precision vector magnetometers in existing UAV magnetic measurement systems. To address this swaying issue, the system must be integrated with the UAV, preventing swaying caused by UAV movement or wind (wind strength sufficient for takeoff). Therefore, this embodiment provides a UAV magnetic measurement system with a magnetic measurement extension rod 1 connection structure. The extension rod 1 is a straight rod made of plastic or resin fiber. Except for the solid top, the rest is tubular, designed to maintain a lightweight profile in a vertical position. Alternatively, thin-walled metal tubes can also be used.

[0021] Considering that the main reason for not being able to set up a straight tube is the take-off and landing issue, it is necessary to ensure that the extension rod 1 and the drone are in a movable state during take-off and landing, that is, the extension rod 1 can be set horizontally. When the drone is in operation, the extension rod 1 needs to be fixed to the drone, that is, the extension rod 1 can be set vertically and does not wobble. For this purpose, this embodiment also provides a connecting mechanism. Specifically, the connecting mechanism includes a connecting seat 2 for connecting to the bottom of the drone. The bottom of the connecting seat 2 is open. In this embodiment, the connecting seat 2 is generally rectangular. A pivot 13 is provided between the top of the extension rod 1 and the connecting seat 2. Notches are provided on the side plates of the connecting seat 2 on both sides of the pivot 13. The notches are used to allow the extension rod 1 to be rotated 90 degrees on one side, avoiding limiting the rotation of the extension rod 1.

[0022] In this way, by setting the pivot 13, it is ensured that the extension rod 1 is positioned horizontally during drone takeoff and landing, thus preventing damage to the drone.

[0023] The setting of the rotating shaft 13 also brings the shaking of the extension rod 1, therefore, in order to solve the problem of shaking, the wedge block 21 is arranged on both sides of the rotating shaft 13, the wedge block 21 is a cuboid structure with one side being a slope 14, the wedge block 21 is slidingly arranged in the connecting base 2, and the push rod 22 for driving the wedge block 21 to slide up and down is also arranged in the connecting base 2, and the top of the extension rod 1 is provided with the slope 14 matched with the wedge block 21. The arrangement of the slope 14 mainly facilitates the up and down sliding of the wedge block 21, and avoids the hindering of the end surface of the extension rod 1 caused by shaking. In this way, when the height of the take-off of the unmanned aerial vehicle is greater than the length of the extension rod 1, the push rod 22 is controlled to work, the wedge block 21 is driven to move downwards, thereby clamping the extension rod 1, so that the extension rod 1 cannot shake, and the problem of shaking of the high-precision vector magnetometer in the process of the unmanned aerial vehicle is solved. When the unmanned aerial vehicle is descending, the wedge block 21 is reset, and the extension rod 1 can be turned over. The push rod 22 is an electromagnetic push rod 22 or an electric push rod 22, which is mainly determined according to the space of the connecting base 2.

[0024] Considering that the bottom of the extension rod 1 may also be clamped in the process of the unmanned aerial vehicle descending, thereby damaging the unmanned aerial vehicle, therefore, the walking roller 11 is arranged at the bottom of the extension rod 1, the walking roller 11 is rotatably arranged at the bottom of the extension rod 1, specifically, the roller frame 12 in an inverted U-shaped arrangement is arranged at the bottom of the extension rod 1, the walking roller 11 is rotatably arranged on the roller frame 12, and the rotating direction of the walking roller 11 is consistent with the rotating direction of the rotating shaft 13. In this way, since the walking roller 11 contacts the ground first, in the process of the unmanned aerial vehicle falling, the walking roller 11 moves, so that clamping is avoided, and the unmanned aerial vehicle is damaged. Of course, the wedge block 21 on one side can be reset, and the wedge block 21 on the other side continues to move downwards, in this way, the extension rod 1 can be kept at a certain angle of inclination, and in combination with the walking roller 11, the safe landing can be ensured.

[0025] In order to ensure the stability of the up and down sliding of the wedge block 21, in the embodiment, the guide protrusion is further arranged on the inner wall of the connecting base 2, and the wedge block 21 is provided with the groove 211 matched with the guide protrusion. In this way, through the cooperation of the guide protrusion and the groove 211, the stability and accuracy of the up and down sliding are realized, and the stability of the whole connecting structure is ensured.

[0026] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments shall fall within the protection scope of the technical scheme of the present application.

Claims

1. A magnetic measurement boom connecting structure for a UAV magnetic measurement system, comprising a boom, characterized by, The connecting mechanism comprises a connecting seat connected to the bottom of the unmanned aerial vehicle, the bottom of the connecting seat is provided with an opening, a rotating shaft is arranged between the top of the extension rod and the connecting seat, the extension rod is reversibly arranged on the connecting seat through the rotating shaft, wedge blocks are arranged on both sides of the rotating shaft, the wedge blocks are slidingly arranged in the connecting seat, a push rod for driving the wedge blocks to slide up and down is further arranged in the connecting seat, and the top of the extension rod is provided with an inclined surface matched with the wedge blocks.

2. The magnetic measurement boom connecting structure for a UAV magnetic measurement system according to claim 1, characterized in that, The bottom of the extension rod is provided with a walking roller, the walking roller is rotatably arranged at the bottom of the extension rod, and the rotating direction of the walking roller is consistent with the rotating direction of the rotating shaft.

3. The magnetic measuring boom connecting structure for unmanned aerial vehicle magnetic measuring systems according to claim 2, characterized in that, A guide protrusion is further arranged on the inner wall of the connecting seat, and a groove matched with the guide protrusion is arranged on the wedge block.

4. The magnetic measurement boom connecting structure for unmanned aerial vehicle magnetic measurement systems according to claim 3, characterized in that, The push rod is an electromagnetic push rod or an electric push rod.

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