Fixing mechanism of surveying and mapping unmanned aerial vehicle

Abstract

The utility model discloses a fixing mechanism of a surveying and mapping unmanned aerial vehicle, and relates to the technical field of aerial surveying and mapping, the fixing mechanism comprises a base plate and a bearing platform arranged on the base plate, the base plate is provided with a connecting assembly used for being connected with the unmanned aerial vehicle, the top surface of the bearing platform is provided with a movable groove, and a transmission gear is rotatably installed in the movable groove; a first rack and a second rack are further slidably arranged in the movable groove, the first rack and the second rack are both connected with the transmission gear in a meshed mode, positioning clamping plates are fixedly connected to the top face of the first rack and the top face of the second rack, a threaded rod is rotationally installed on the bearing table, and the first rack is in threaded connection to the threaded rod; according to the surveying and mapping instrument fixing device, the effect of fixing surveying and mapping instruments is achieved, and different surveying and mapping instruments can be fixed in a clamping and fixing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial surveying and mapping, in particular to a fixing mechanism for a surveying and mapping unmanned aerial vehicle (UAV). Background Technique

[0002] Surveying and mapping literally means measuring and mapping. Based on computer technology, optoelectronic technology, network communication technology, space science, and information science, with the global navigation satellite system (GNSS), remote sensing (RS), and geographic information system (GIS) as the technical core, it selects existing feature points and boundaries on the ground and obtains graphical and position information reflecting the current ground situation through measurement means for engineering construction, planning and design, and administrative management.

[0003] When conducting surveying and mapping, UAVs are used. However, existing surveying and mapping UAVs do not have the function of facilitating the fixation of surveying and mapping devices, resulting in cumbersome steps, time-consuming and laborious when users install surveying and mapping devices at the bottom of the UAV. This not only reduces the installation speed but also affects the disassembly, making it inconvenient for users to use and reducing the practicality of the UAV.

[0004] The existing patent (publication number: CN214986121U) proposed a fixing mechanism for a surveying and mapping UAV, including a UAV body, with wings installed at both left and right ends of the UAV body; a surveying and mapping device body is arranged at the bottom of the UAV body, and a fixing mechanism is arranged between the surveying and mapping device body and the UAV body; by quickly hanging the flanging arranged on the mounting block with the connecting plate, and then sealing the connecting plate through the movable sealing plate after hanging; it can effectively further fix the surveying and mapping device body, with a simple structure, convenient operation, and easy to promote and apply.

[0005] The above fixing mechanism has the following disadvantages when in use: Since the surveying and mapping UAV needs to carry different surveying and mapping instruments during the actual surveying and mapping process, it can only fix a single surveying and mapping instrument, resulting in a small applicability and poor practicality of the fixing mechanism. For this reason, we propose a fixing mechanism for a surveying and mapping UAV to solve the above problems. Content of the Utility Model

[0006] The utility model provides a fixing mechanism for a surveying and mapping UAV, which solves the technical problem that in the actual surveying and mapping process, the surveying and mapping UAV needs to carry different surveying and mapping instruments, but can only fix a single surveying and mapping instrument, resulting in a small applicability and poor practicality of the fixing mechanism.

[0007] To solve the above technical problems, a fixing mechanism for a surveying and mapping unmanned aerial vehicle provided by the utility model includes a base plate and a carrying platform arranged on the base plate. A connecting component for connecting the unmanned aerial vehicle is arranged on the base plate. An activity groove is formed on the top surface of the carrying platform. A transmission gear is rotatably installed inside the activity groove. A first rack and a second rack are also slidably arranged inside the activity groove. Both the first rack and the second rack are meshed and connected with the transmission gear. Positioning clamping plates are fixedly connected to the top surfaces of both the first rack and the second rack. A threaded rod is rotatably installed on the carrying platform. The first rack is threadedly connected to the threaded rod.

[0008] Preferably, a rotating shaft is rotatably installed inside the activity groove. The transmission gear is fixedly sleeved on the outer wall of the rotating shaft.

[0009] Preferably, a threaded through hole is formed inside the first rack. The first rack is threadedly connected to the threaded rod through the threaded through hole.

[0010] Preferably, the connecting component includes a first damping rod and a connecting plate. The first damping rod is fixedly installed on the top of the base plate. The connecting plate is fixedly installed on the top of the first damping rod. An assembly hole for connecting with the unmanned aerial vehicle is formed through the connecting plate.

[0011] Preferably, a first buffer spring is sleeved outside the first damping rod. The top end of the first buffer spring is connected to the bottom surface of the connecting plate. The bottom end of the first buffer spring is connected to the top surface of the base plate.

[0012] Preferably, a second damping rod is fixedly installed on the side wall of the base plate. The piston end of the second damping rod is fixedly connected to the outer side wall of the carrying platform. A second buffer spring is sleeved outside the second damping rod. One end of the second buffer spring is fixedly connected to the inner side wall of the base plate. The other end of the second buffer spring is fixedly connected to the outer side wall of the carrying platform.

[0013] Preferably, a guiding groove is formed on the top surface of the carrying platform. A guiding block is arranged inside the guiding groove. The guiding block is fixedly connected to the center of the bottom surface of the positioning clamping plate.

[0014] Preferably, a flexible pad is arranged on the inner side wall of the positioning clamping plate. The flexible pad is made of rubber material.

[0015] Compared with the related technology, a fixing mechanism for a surveying and mapping unmanned aerial vehicle provided by the utility model has the following beneficial effects:

[0016] In the utility model, the threaded rod can be rotated to drive the first rack threadedly connected thereto to slide horizontally inside the movable groove. During the horizontal sliding of the first rack, the transmission gear meshing therewith is driven to rotate. The transmission gear drives the second rack meshing therewith to slide horizontally inside the movable groove. The horizontal movement of the first rack and the second rack can drive the positioning clamping plate fixed thereto to move relative to each other. The positioning clamping plate can be used to clamp the surveying and mapping instrument to achieve the effect of fixing the surveying and mapping instrument. Different surveying and mapping instruments can be fixed by the clamping and fixing method.

[0017] In the utility model, the first damping rod and the connecting plate are provided to facilitate the installation of the fixing mechanism as a whole on the unmanned aerial vehicle, and the base plate and the bearing platform are provided to facilitate the support of the surveying and mapping instrument. When the first damping rod is subjected to up and down vibrations during use, the first damping rod contracts up and down, and the first buffer spring sleeved on the outside thereof can follow the expansion and contraction of the first damping rod to achieve compression deformation. The base plate, the bearing platform, the first damping rod and the connecting plate cooperate to achieve an up and down vibration buffering effect, thereby reducing the flight vibrations suffered by the surveying and mapping instrument, and further reducing the up and down shaking amplitude of the bearing platform, achieving a shock absorbing effect in the up and down directions. When the bearing platform is subjected to left and right shaking, the second damping rod and the second buffer spring are compressed and stretched, thereby supporting the bearing platform, which can effectively achieve a shock absorbing effect when it shakes left and right, thereby achieving a multi-directional buffering and shock absorbing effect for the bearing platform, improving the overall seismic resistance, and improving the stability of the surveying and mapping instrument fixed on the unmanned aerial vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a fixing mechanism of a surveying and mapping UAV;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of a fixing mechanism of a surveying and mapping UAV;

[0020] Figure 3 It is a schematic diagram of the front view structure of a fixing mechanism of a surveying and mapping UAV;

[0021] Figure 4 The figure is a schematic diagram of the top view structure of a fixing mechanism of a surveying and mapping UAV.

[0022] Numbers in the figure: 1, base plate; 2, supporting platform; 3, first damping rod; 4, connecting plate; 5, second damping rod; 6, second buffer spring; 7, movable groove; 8, rotating shaft; 9, transmission gear; 10, first rack; 11, second rack; 12, positioning clamp; 13, threaded rod; 14, first buffer spring. DETAILED DESCRIPTION

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment 1, given by Figures 1-4 A fixing mechanism for a surveying and mapping unmanned aerial vehicle, comprising a base plate 1 and a bearing platform 2 arranged on the base plate 1. A connecting component for connecting the unmanned aerial vehicle is arranged on the base plate 1. An activity groove 7 is formed on the top surface of the bearing platform 2. A transmission gear 9 is rotatably installed inside the activity groove 7. A first rack 10 and a second rack 11 are also slidably arranged inside the activity groove 7. Both the first rack 10 and the second rack 11 are meshed and connected with the transmission gear 9. Positioning clamping plates 12 are fixedly connected to the top surfaces of the first rack 10 and the second rack 11. A threaded rod 13 is rotatably installed on the bearing platform 2. The first rack 10 is threadedly connected to the threaded rod 13;

[0025] During specific implementation, the surveying instrument is placed on the bearing platform 2. By rotating the threaded rod 13, the first rack 10 threadedly connected thereto can be driven to horizontally slide inside the moving groove 7. During the horizontal sliding of the first rack 10, the transmission gear 9 meshed therewith is driven to rotate. The transmission gear 9 drives the second rack 11 meshed and connected thereto to horizontally slide inside the moving groove 7. The relative movement of the positioning clamping plates 12 fixed to the first rack 10 and the second rack 11 can be driven through the horizontal movement of the first rack 10 and the second rack 11. The surveying instrument can be clamped by using the positioning clamping plates 12, achieving the effect of fixing the surveying instrument. Different surveying instruments can be fixed by using the clamping and fixing method.

[0026] A rotating shaft 8 is rotatably installed inside the moving groove 7, and the transmission gear 9 is fixedly sleeved on the outer wall of the rotating shaft 8.

[0027] A threaded through hole is formed inside the first rack 10, and the first rack 10 is threadedly connected to the threaded rod 13 through the threaded through hole.

[0028] The connecting component includes a first damping rod 3 and a connecting plate 4. The first damping rod 3 is fixedly installed on the top of the base plate 1, the connecting plate 4 is fixedly installed on the top of the first damping rod 3, and an assembly hole for connecting to the drone is formed through the connecting plate 4.

[0029] Embodiment 2 is given by Figures 1-4 On the basis of Embodiment 1, a first buffer spring 14 is sleeved outside the first damping rod 3. The top end of the first buffer spring 14 is connected to the bottom surface of the connecting plate 4, and the bottom end of the first buffer spring 14 is connected to the top surface of the base plate 1. A second damping rod 5 is fixedly installed on the side wall of the base plate 1. The piston end of the second damping rod 5 is fixedly connected to the outer side wall of the bearing platform 2. A second buffer spring 6 is sleeved outside the second damping rod 5. One end of the second buffer spring 6 is fixedly connected to the inner side wall of the base plate 1, and the other end of the second buffer spring 6 is fixedly connected to the outer side wall of the bearing platform 2;

[0030] In specific implementation, the first damping rod 3 and the connecting plate 4 are provided to facilitate the installation of the fixing mechanism as a whole on the UAV, and the base plate 1 and the bearing platform 2 are provided to facilitate the support of the surveying and mapping instrument. When the first damping rod 3 is subjected to up and down vibrations during use, the first damping rod 3 contracts up and down, and the first buffer spring 14 sleeved on the outside thereof can follow the expansion and contraction of the first damping rod 3 to achieve compression deformation. The base plate 1, the bearing platform 2, the first damping rod 3, and the connecting plate 4 cooperate to achieve an up and down vibration buffering effect, thereby reducing the flight vibration suffered by the surveying and mapping instrument, thereby reducing the up and down shaking amplitude of the bearing platform 2, and achieving a shock absorbing effect in the up and down directions. When the bearing platform 2 is subjected to left and right shaking, the second damping rod 5 and the second buffer spring 6 are compressed and stretched, thereby supporting the bearing platform 2, and can effectively achieve a shock absorbing effect when it shakes left and right, thereby achieving a multi-directional buffering and shock absorbing effect on the bearing platform 2, improving the overall seismic resistance, and improving the stability of the surveying and mapping instrument fixed on the UAV.

[0031] In addition, in order to improve the sliding stability of the positioning clamp plate 12 on the supporting platform 2, a guide groove is opened on the top surface of the supporting platform 2, and a guide block is arranged inside the guide groove, and the guide block is fixedly connected to the center of the bottom surface of the positioning clamp plate 12.

[0032] In addition, in order to increase the friction between the positioning clamp plate 12 and the outer surface of the surveying and mapping instrument, a flexible pad is provided on the inner side wall of the positioning clamp plate 12, and the flexible pad is made of rubber.

[0033] Working principle: during use, the first damping rod 3 and the connecting plate 4 are provided to facilitate installation of the fixing mechanism as a whole on the UAV, and the base plate 1 and the bearing platform 2 are provided to facilitate support of the surveying and mapping instrument. When subjected to up and down vibrations during use, the first damping rod 3 contracts up and down, and the first buffer spring 14 sleeved on the outside thereof can follow the expansion and contraction of the first damping rod 3 to achieve compression deformation. The base plate 1, the bearing platform 2, the first damping rod 3, and the connecting plate 4 cooperate to achieve an up and down vibration buffering effect, thereby reducing the flight vibrations suffered by the surveying and mapping instrument, and further reducing the up and down shaking amplitude of the bearing platform 2, achieving a shock absorbing effect in the up and down directions. When the bearing platform 2 is subjected to left and right shaking, the second damping rod 5 and the second buffer spring 6 are compressed and stretched, thereby supporting the bearing platform 2, and shaking left and right. It can effectively play a shock-absorbing effect, achieve the multi-directional buffering and shock-absorbing effect of the bearing platform 2, improve the overall seismic resistance, and improve the stability of the surveying and mapping instrument fixed on the drone. The surveying and mapping instrument is placed on the bearing platform 2, and the threaded rod 13 can be rotated to drive the first rack 10 threadedly connected to it to slide horizontally inside the movable groove 7. During the horizontal sliding of the first rack 10, the transmission gear 9 meshing with it is driven to rotate, and the transmission gear 9 drives the second rack 11 meshing with it to slide horizontally inside the movable groove 7. The horizontal movement of the first rack 10 and the second rack 11 can drive the positioning clamp 12 fixed thereto to move relative to each other. The positioning clamp 12 can be used to clamp the surveying and mapping instrument to achieve the effect of fixing the surveying and mapping instrument. Different surveying and mapping instruments can be fixed by clamping.

[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. A fixing mechanism for a surveying and mapping unmanned aerial vehicle, comprising a substrate (1) and a carrying platform (2) arranged on the substrate (1), characterized in that, A connection component for connecting a drone is provided on the substrate (1). An activity groove (7) is formed on the top surface of the carrier table (2). A transmission gear (9) is rotatably installed inside the activity groove (7). A first rack (10) and a second rack (11) are also slidably arranged inside the activity groove (7). Both the first rack (10) and the second rack (11) are meshed and connected with the transmission gear (9). Positioning clamping plates (12) are fixedly connected to the top surfaces of both the first rack (10) and the second rack (11). A threaded rod (13) is rotatably installed on the carrier table (2). The first rack (10) is threadedly connected to the threaded rod (13).

2. The fixing mechanism of a surveying and mapping unmanned aerial vehicle according to claim 1, wherein, A rotating shaft (8) is rotatably installed inside the activity groove (7). The transmission gear (9) is fixedly sleeved on the outer wall of the rotating shaft (8).

3. The fixing mechanism of a surveying and mapping unmanned aerial vehicle according to claim 1, characterized in that, A threaded through hole is formed inside the first rack (10). The first rack (10) is threadedly connected to the threaded rod (13) through the threaded through hole.

4. The fixing mechanism of a surveying and mapping unmanned aerial vehicle according to claim 1, characterized in that, The connection component includes a first damping rod (3) and a connecting plate (4). The first damping rod (3) is fixedly installed on the top of the substrate (1). The connecting plate (4) is fixedly installed on the top of the first damping rod (3). An assembly hole for connecting with the drone is formed through the connecting plate (4).

5. The fixing mechanism of a mapping UAV according to claim 4, characterized in that, A first buffer spring (14) is sleeved outside the first damping rod (3). The top end of the first buffer spring (14) is connected to the bottom surface of the connecting plate (4). The bottom end of the first buffer spring (14) is connected to the top surface of the substrate (1).

6. The fixing mechanism of a mapping unmanned aerial vehicle according to claim 1, characterized in that, A second damping rod (5) is fixedly installed on the side wall of the substrate (1). The piston end of the second damping rod (5) is fixedly connected to the outer side wall of the carrier table (2). A second buffer spring (6) is sleeved outside the second damping rod (5). One end of the second buffer spring (6) is fixedly connected to the inner side wall of the substrate (1). The other end of the second buffer spring (6) is fixedly connected to the outer side wall of the carrier table (2).

7. The fixing mechanism of a mapping UAV according to claim 1, characterized in that, A guiding groove is formed on the top surface of the carrier table (2). A guiding block is arranged inside the guiding groove. The guiding block is fixedly connected to the center of the bottom surface of the positioning clamping plate (12).

8. The fixing mechanism of a surveying and mapping unmanned aerial vehicle according to claim 1, characterized in that A flexible pad is arranged on the inner side wall of the positioning clamping plate (12). The flexible pad is made of rubber material.

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