An aerial photography device

Abstract

The present application provides an aerial photography device. The aerial photography device includes an aircraft, a camera, a bracket, and a driving mechanism. The bracket is connected to the aircraft, and the camera is rotatably connected to the bracket. The driving mechanism includes a driving blade, a rotating shaft, and a linkage unit. The driving blade is connected to the rotating shaft, the rotating shaft is rotatably connected to the bracket, and the rotating shaft is connected to the camera through the linkage unit. The driving blade is used to drive the rotating shaft to rotate when the aircraft is flying, and convert the rotational motion of the rotating shaft into a reciprocating swinging motion of the camera relative to the bracket through the linkage unit. The photography range is wide and the photography efficiency is high.

Description

Technical Field

[0001] The present invention relates to the field of aerial photography equipment, and more particularly, to an aerial photography device. Background Art

[0002] Aerial photography, also known as aerial surveying, refers to the technology of using an aerial camera on an airplane or other aerial vehicle to capture images of ground scenery. With the rapid development of the economy and the ever-changing development of information technology, unmanned aerial vehicles (UAVs) have also been continuously innovated. Currently, UAVs are widely used for photography and taking pictures, such as mapping terrain models. During aerial surveying, the aerial surveying devices installed on UAVs play a huge role. However, due to structural limitations and camera shooting angle limitations in existing aerial photography, it is impossible to comprehensively understand the actual situation of the target area from multiple angles in a timely manner.

[0003] It has been found through research that the existing aerial photography devices have the following disadvantages:

[0004] The shooting range is narrow and the shooting efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to provide an aerial photography device that can increase the aerial photography range and has a high aerial photography efficiency.

[0006] The embodiments of the present invention are implemented as follows:

[0007] The present invention provides an aerial photography device, including:

[0008] An aircraft, a camera, a bracket, and a driving mechanism. The bracket is connected to the aircraft, and the camera is rotatably connected to the bracket. The driving mechanism includes a driving blade, a rotating shaft, and a linkage unit. The driving blade is connected to the rotating shaft, the rotating shaft is rotatably connected to the bracket, and the rotating shaft is connected to the camera through the linkage unit. The driving blade is used to drive the rotating shaft to rotate when the aircraft is flying, and convert the rotational motion of the rotating shaft into a reciprocating swinging motion of the camera relative to the bracket through the linkage unit.

[0009] In an alternative embodiment, the camera includes a camera body, a first connection unit, and a second connection unit both connected to the camera body. The bracket is rotatably connected to the first connection unit around a first axis, and the linkage unit is rotatably connected to the second connection unit around a second axis parallel to the first axis.

[0010] In an alternative embodiment, the linkage unit includes a transmission wheel, a collar, a limiting sleeve, and a guiding rod. The collar is sleeved outside the transmission wheel and they are concentrically arranged; the rotating shaft is connected to the transmission wheel and they are eccentrically arranged; the limiting sleeve is provided with a limiting slideway and is connected to the bracket; one end of the guiding rod is rotatably connected to the collar, the guiding rod is slidably engaged with the limiting slideway, and the guiding rod and the limiting slideway are relatively fixed in the circumferential direction of the guiding rod. The other end of the guiding rod is rotatably connected to the second connecting unit; the rotating shaft is used to drive the transmission wheel to rotate, so as to drive the collar to swing, thereby driving the guiding rod to slide relative to the limiting sleeve, and further driving the camera body to swing relative to the bracket through the guiding rod.

[0011] In an alternative embodiment, the transmission wheel is provided with a slot, the slot wall is provided with a first keyway, the outer peripheral wall of the rotating shaft is provided with a second keyway, the rotating shaft is inserted into the slot and connected by a connecting key that is simultaneously clamped in the first keyway and the second keyway, so that the rotating shaft and the transmission wheel are relatively fixed in the circumferential direction of the rotating shaft.

[0012] In an alternative embodiment, the cross-sectional shape of the guiding rod is non-circular. Correspondingly, the cross-sectional shape of the limiting slideway is non-circular; wherein, the cross-section of the guiding rod is a plane perpendicular to the length direction of the guiding rod; the cross-section of the limiting slideway is a plane perpendicular to the length direction of the limiting slideway.

[0013] In an alternative embodiment, the camera body is provided with a guiding groove, the second connecting unit is arranged as a adapter, the adapter is slidably engaged with the guiding groove in a direction perpendicular to the second axis, and the adapter is rotatably connected to the end of the guiding rod away from the collar; the guiding rod is used to drive the adapter to move, so that the adapter drives the camera body to swing while sliding in the limiting slideway.

[0014] In an alternative embodiment, the limiting slideway is arranged as a dovetail groove or a "T" - shaped groove.

[0015] In an alternative embodiment, the aerial photography device further includes a driving motor, the driving motor is connected to the aircraft, the output shaft of the driving motor is connected to the transmission wheel and is coaxially arranged with the rotating shaft, and the driving motor is used to drive the transmission wheel to rotate.

[0016] In an alternative embodiment, the aerial photography device further includes an adapter unit, the adapter unit is connected to the transmission wheel, both the rotating shaft and the output shaft of the driving motor are connected to the adapter unit, and the torque of the rotating shaft terminates at the adapter unit, so that when the rotating shaft drives the transmission wheel to rotate through the adapter unit, the output shaft remains stationary; the torque of the driving motor terminates at the adapter unit, so that when the output shaft drives the transmission wheel to rotate through the adapter unit, the rotating shaft remains stationary.

[0017] In an optional embodiment, the adapter unit includes an adapter cylinder, an inner cylinder wall of which is provided with a first ratchet ring and a second ratchet ring arranged at intervals on the axis of the adapter cylinder; the adapter cylinder passes through the transmission wheel and is eccentrically arranged with the transmission wheel, and the adapter cylinder and the transmission wheel remain relatively fixed in the circumferential direction of the adapter cylinder; a first pawl is provided on the rotating shaft, and the first pawl is used to engage with the first ratchet ring, and is only used to drive the adapter cylinder to rotate along a preset rotation direction; a second pawl is provided on the output shaft, and the second pawl is engaged with the second ratchet ring, and is only used to drive the adapter cylinder to rotate along a preset rotation direction.

[0018] The beneficial effects of the embodiments of the present invention are:

[0019] In summary, the present embodiment provides an aerial photography device. When the camera is driven by an aircraft to perform shooting operations in the air, the blades are driven to rotate under the action of wind, and the driving blades drive the rotating shaft to rotate, thereby driving the camera to move through the rotating shaft and the linkage unit. The camera can swing back and forth relative to the bracket around the rotating connection position of the two. In this way, during the swinging process of the camera, its camera swings synchronously, the camera's shooting range is expanded, and it can collect more comprehensive and extensive image information, and the efficiency of the aerial photography operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a schematic structural diagram of an aerial photography device according to an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;

[0023] Figure 3 A partial structural schematic diagram of an aerial photography device according to an embodiment of the present invention;

[0024] Figure 4 is a schematic cross-sectional structural diagram of a switching unit according to an embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of a switching unit from one perspective of an embodiment of the present invention;

[0026] Figure 6 FIG. 4 is a schematic structural diagram of a switching unit from another perspective of an embodiment of the present invention.

[0027] icon:

[0028] 100 - Aircraft; 101 - Bracket; 102 - Rotating Pin; 200 - Camera; 201 - Camera; 202 - Guide Slot; 203 - Adapter; 300 - Driving Mechanism; 301 - Rotating Blade; 302 - Rotating Shaft; 303 - Transmission Wheel; 304 - Ring Sleeve; 305 - Limiting Sleeve; 306 - Orientation Rod; 500 - Driving Motor; 501 - Output Shaft; 600 - Adapter Unit; 601 - Adapter Tube; 602 - First Ratchet Ring; 603 - Second Ratchet Ring; 604 - First Pawl; 605 - Second Pawl. Detailed Implementation Manner

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein generally may be arranged and designed in a variety of different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of the present invention.

[0031] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0033] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0034] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In the existing aerial photography device, a camera 201 is arranged on a drone. The drone flies on a set flight route, and the camera 201 is used to collect image information of a set area. The acquisition range of the camera 201 is certain, and the shooting angle only changes correspondingly with the change of the flight route of the drone. Thus, the shooting range of the camera 201 is narrow, reducing the shooting efficiency.

[0036] Please refer to Figures 1-6 , in view of this, the designer designed an aerial photography device. The camera 201 of the camera 200 can not only adjust the shooting angle with the change of the flight route of the aircraft 100, but also can adjust the angle by using the wind force during the flight of the aircraft 100. The photography range is wide, improving the aerial photography efficiency.

[0037] In this embodiment, the aerial photography device includes an aircraft 100, a camera 200, a bracket 101, and a driving mechanism 300. The bracket 101 is connected to the aircraft 100, and the camera 200 is rotatably connected to the bracket 101; the driving mechanism 300 includes driving blades, a rotating shaft 302, and a linkage unit. The driving blades are connected to the rotating shaft 302, the rotating shaft 302 is rotatably connected to the bracket 101, and the rotating shaft 302 is connected to the camera 200 through the linkage unit. The driving blades are used to drive the rotating shaft 302 to rotate when the aircraft 100 is flying, and convert the rotational motion of the rotating shaft 302 into a reciprocating swinging motion of the camera 200 relative to the bracket 101 through the linkage unit.

[0038] In this embodiment, when using the aircraft 100 to drive the camera 200 to perform aerial shooting operations, under the action of wind force, the driving blades rotate, the driving blades drive the rotating shaft 302 to rotate, and thus drive the camera 200 to move through the rotating shaft 302 and the linkage unit. The camera 200 can reciprocally swing relative to the bracket 101 around the rotation connection position of the two. Thus, during the swinging process of the camera 200, its camera 201 synchronously performs a swinging motion, the shooting range of the camera 201 is expanded, and more comprehensive and extensive image information can be collected, and the efficiency of aerial shooting operations is improved.

[0039] In this embodiment, optionally, the aircraft 100 can be a drone.

[0040] In this embodiment, optionally, the bracket 101 is provided as an aluminum alloy bracket 101, which is light in weight while meeting the strength requirements, reducing the load of the aircraft 100, lowering the power consumption of the aircraft 100, and not easily affecting the flight stability of the aircraft 100. The bracket 101 includes two support units and a connecting rod. Each support unit includes two inclined rods. One end of each of the two inclined rods is connected to the bottom of the aircraft 100 and has a spacing in the width direction of the aircraft 100, and the other ends are both connected to the connecting rod. The two support units have a spacing in the length direction of the aircraft 100, and the connecting rod extends along the length direction of the aircraft 100. The connecting rod is located at the middle position in the width direction of the aircraft 100. Each support unit and the connecting rod form a tripod structure, which is stable and reliable. A bearing is provided on the connecting rod. The outer ring of the bearing is fixedly connected to the connecting rod, and the rotating shaft 302 is inserted through the inner ring of the bearing.

[0041] In this embodiment, optionally, the rotating shaft 302 is provided as a hollow shaft. Three rotating blades 301 are provided on the rotating shaft 302. Each rotating blade 301 is an arc-shaped piece. The three rotating blades 301 are evenly spaced in the circumferential direction of the rotating shaft 302. During the flight of the aircraft 100, the three rotating blades 301 face the front of the aircraft 100 and are subjected to a large wind force, which is convenient for driving the drive shaft to rotate through the three rotating blades 301.

[0042] By setting the rotating shaft 302 as a hollow shaft, the overall weight is reduced. The rotating shaft 302 is directly inserted through the inner ring of the bearing, and the assembly is convenient. It should be understood that in order to improve the stability of the rotating shaft 302 during rotation, multiple bearings arranged coaxially can be provided on the connecting rod, and the rotating shaft 302 is simultaneously inserted through multiple bearings.

[0043] In this embodiment, optionally, the linkage unit includes a transmission wheel 303, a collar 304, a limit sleeve 305, and a guiding rod 306. The collar 304 is provided with a circular hole. The transmission wheel 303 is a circular wheel. The collar 304 is sleeved outside the transmission wheel 303 and they are concentrically arranged. The rotating shaft 302 is connected to the transmission wheel 303 and they are eccentrically arranged; the limit sleeve 305 is provided with a limit slideway, and the limit sleeve 305 is connected to the bracket 101; one end of the guiding rod 306 is rotatably connected to the collar 304. The guiding rod 306 is slidably engaged with the limit slideway, and the guiding rod 306 and the limit slideway are relatively fixed in the circumferential direction of the guiding rod 306. The other end of the guiding rod 306 is rotatably connected to the second connection unit; the rotating shaft 302 is used to drive the transmission wheel 303 to rotate, so as to drive the collar 304 to swing, thereby driving the guiding rod 306 to slide relative to the limit sleeve 305, and further driving the camera 200 body to swing relative to the bracket 101 through the guiding rod 306.

[0044] Further, the driving wheel 303 is provided with a slot, and the slot wall is provided with a first keyway. The outer peripheral wall of the rotating shaft 302 is provided with a second keyway. The rotating shaft 302 is inserted into the slot and connected by a connecting key that is simultaneously clamped in the first keyway and the second keyway, so that the rotating shaft 302 and the driving wheel 303 are relatively fixed in the circumferential direction of the rotating shaft 302.

[0045] Further, the cross-sectional shape of the guiding rod 306 is non-circular. Correspondingly, the cross-sectional shape of the limiting slideway is non-circular. Among them, the cross-section of the guiding rod 306 is a plane perpendicular to the length direction of the guiding rod 306; the cross-section of the limiting slideway is a plane perpendicular to the length direction of the limiting slideway. It should be understood that the cross-sectional shape of the limiting slideway can be rectangular, oval, etc. Obviously, the cross-section of the guiding rod 306 can be set to a rectangle or an oval that matches the cross-section of the limiting slideway. The guiding rod 306 and the limiting slideway are in sliding fit, and their cross-sections are set to be non-circular. In this way, the guiding rod 306 only reciprocally slides along the extending direction of the limiting slideway relative to the limiting slideway and does not rotate relative to the limiting slideway. The guiding rod 306 does not generate torque on the camera 200, and the camera 200 swings more stably.

[0046] It should be understood that in other embodiments, the limiting slideway can be set as a through hole, and the guiding rod 306 can be in sliding fit with the through hole. Obviously, the cross-section of the through hole can be set to be non-circular.

[0047] In addition, the limiting sleeve 305 can be connected to the bottom of the aircraft 100, or the limiting sleeve 305 is connected to the connecting rod. The extending direction of the limiting slideway on the limiting sleeve 305 is along the direction perpendicular to the bottom of the aircraft 100. That is, when the aircraft 100 is flying horizontally, the limiting slideway is vertically arranged.

[0048] In this embodiment, optionally, the camera 200 includes a camera 200 body, a first connection unit, and a second connection unit. A guide groove 202 is provided at the top of the camera 200 body. The guide groove 202 can be a dovetail groove or a "T"-shaped groove. When the camera 200 body is assembled with the aircraft 100, the guide groove 202 extends along the length direction of the aircraft 100 body. The first connection unit is provided as a lug, and a jack is provided on the lug. The first connection unit is connected to the top of the camera 200 body. An installation seat is provided on the connecting rod, and a through hole is provided on the installation seat. The lug and the installation seat cooperate, and the two are rotationally connected through a rotating pin 102. The axis of the rotating pin 102 is perpendicular to the connecting rod and parallel to the bottom surface of the aircraft 100. That is, the camera 200 body rotates in cooperation with the bracket 101 around the axis of the rotating pin 102. The axis of the rotating pin 102 can be referred to as the first axis. The second connection unit is provided as a swivel joint 203. The swivel joint 203 is slidably engaged with the guide groove 202 along the extension direction of the guide groove 202, and the swivel joint 203 is rotationally connected to the end of the orientation rod 306 away from the collar. The axis of rotation 302 of the two is the second axis, and the first axis and the second axis are parallel. When the orientation rod 306 reciprocates up and down relative to the limit slideway, when the orientation rod 306 drives the swivel joint 203 to slide in the guide groove 202, the orientation rod 306 rotates relative to the swivel joint 203, and the swivel joint 203 drives the camera 200 body to swing back and forth around the first axis, so as to adjust the shooting angle of the camera 200 body during the flight of the aircraft 100. Since the swivel joint 203 is rotationally connected to the orientation rod 306 and the swivel joint 203 is slidably engaged with the guide groove 202, when the orientation rod 306 reciprocates up and down to drive the camera 200 body to swing, the orientation rod 306 and the camera 200 body will not interfere with each other, and the movement of the camera 200 body is stable and reliable.

[0049] In other embodiments, the aerial imaging device further includes a driving motor 500. The driving motor 500 is connected to the aircraft 100. The output shaft 501 of the driving motor 500 is connected to the transmission wheel 303 and is coaxially arranged with the rotating shaft 302. The driving motor 500 is used to drive the transmission wheel 303 to rotate. In this way, when the transmission structure that drives the camera 200 body to swing by the rotating blade 301 is blocked, the driving motor 500 can directly drive the transmission wheel 303 to rotate, so as to drive the camera 200 body to swing back and forth through the cooperation structure of the transmission wheel 303, the collar 304, the limit sleeve 305, and the orientation rod 306. That is, the camera 200 body provided in this embodiment can swing up and down reciprocally under the drive of the linkage unit. Obviously, in other embodiments, the linkage unit can swing the camera 200 body left and right.

[0050] Further, the aerial photography device further includes a transfer unit 600. The transfer unit 600 is connected to the driving wheel 303. The rotating shaft 302 and the output shaft 501 of the driving motor 500 are both connected to the transfer unit 600, and the torque of the rotating shaft 302 terminates at the transfer unit 600. When the rotating shaft 302 drives the driving wheel 303 to rotate through the transfer unit 600, the output shaft 501 remains stationary; the torque of the driving motor 500 terminates at the transfer unit 600. When the output shaft 501 drives the driving wheel 303 to rotate through the transfer unit 600, the rotating shaft 302 remains stationary. With such a design, the driving wheel 303 is driven separately by the driving motor 500 or the rotating shaft 302. For example, when the driving wheel 303 is driven by the driving motor 500 to rotate, the rotating shaft 302 does not rotate, that is, the torque of the driving motor 500 is not directly transmitted to the rotating shaft 302, reducing power consumption. Or, when the driving wheel 303 is driven by the rotating shaft 302 to rotate, the output shaft 501 of the driving motor 500 does not rotate, that is, the torque of the rotating shaft 302 is not directly transmitted to the output shaft 501 of the driving motor 500, reducing energy loss.

[0051] Further, the transfer unit 600 includes a transfer cylinder 601. The inner cylinder wall of the transfer cylinder 601 is provided with a first ratchet ring 602 and a second ratchet ring 603 that are arranged at intervals on the axis of the transfer cylinder 601; the transfer cylinder 601 penetrates through the driving wheel 303 and is eccentrically arranged with the driving wheel 303, and the transfer cylinder 601 and the driving wheel 303 are relatively fixed in the circumferential direction of the transfer cylinder 601; a first ratchet 604 is provided on the rotating shaft 302, and the first ratchet 604 is used to engage with the first ratchet ring 602 and is only used to drive the transfer cylinder 601 to rotate in a preset rotation direction; a second ratchet 605 is provided on the output shaft 501, and the second ratchet 605 engages with the second ratchet ring 603 and is only used to drive the transfer cylinder 601 to rotate in a preset rotation direction. In other words, when the rotating shaft 302 rotates in the preset rotation direction, the first ratchet 604 engages with the first ratchet ring 602, thereby driving the transfer cylinder 601 to rotate, and thereby driving the driving wheel 303 to rotate in the preset rotation direction through the transfer cylinder 601. At this time, when the transfer cylinder 601 rotates in the preset rotation direction, the second ratchet rotates along with the transfer cylinder 601 in the preset rotation direction, and the second ratchet does not engage with the second ratchet 605, and the second ratchet 605 does not rotate along with the second ratchet, thereby preventing the output shaft 501 from rotating together. Similarly, when the second ratchet 605 engages with the second ratchet ring 603, the second ratchet 605 can drive the second ratchet to rotate in the preset rotation direction under the drive of the output shaft 501, while the first ratchet ring 602 does not drive the first ratchet 604 to rotate, and the rotating shaft 302 does not rotate together.

[0052] In the aerial photography device provided in this embodiment, the camera 200 can swing reciprocally when the aircraft 100 is flying, with a large photography area, a wide range, and high operation efficiency.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An aerial photography device, characterized in that, Including: An aircraft (100), a camera (200), a bracket (101) and a driving mechanism (300), wherein the bracket (101) is connected to the aircraft (100), and the camera (200) is rotatably connected to the bracket (101); the driving mechanism (300) includes a driving blade, a rotating shaft (302) and a linkage unit, the driving blade is connected to the rotating shaft (302), the rotating shaft (302) is rotatably connected to the bracket (101), the rotating shaft (302) is connected to the camera (200) through the linkage unit, and the driving blade is used to drive the rotating shaft (302) to rotate when the aircraft (100) is flying, and convert the rotational motion of the rotating shaft (302) into a reciprocating swinging motion of the camera (200) relative to the bracket (101) through the linkage unit; The camera (200) includes a camera body, a first connection unit and a second connection unit both connected to the camera body, the bracket (101) is rotatably connected to the first connection unit around a first axis, and the linkage unit is rotatably connected to the second connection unit around a second axis parallel to the first axis; The linkage unit includes a transmission wheel (303), a collar (304), a limit sleeve (305) and a guiding rod (306), the collar (304) is sleeved outside the transmission wheel (303) and they are concentrically arranged; the rotating shaft (302) is directly inserted into the inner ring of a bearing and the rotating shaft (302) is connected to the transmission wheel (303) and they are eccentrically arranged; the limit sleeve (305) is provided with a limit slideway and is connected to the bracket (101); one end of the guiding rod (306) is rotatably connected to the collar (304), the guiding rod (306) is slidably engaged with the limit slideway, and the guiding rod (306) is relatively fixed to the limit slideway in the circumferential direction of the guiding rod (306), and the other end of the guiding rod (306) is rotatably connected to the second connection unit; the rotating shaft (302) is used to drive the transmission wheel (303) to rotate, so as to drive the collar (304) to swing, thereby driving the guiding rod (306) to slide relative to the limit sleeve (305), and further driving the camera body to swing relative to the bracket (101) through the guiding rod (306).

2. The aerial photography device according to claim 1, wherein: The transmission wheel (303) is provided with a slot, the slot wall is provided with a first keyway, the outer peripheral wall of the rotating shaft (302) is provided with a second keyway, the rotating shaft (302) is inserted into the slot and is connected by a connection key that is simultaneously clamped in the first keyway and the second keyway, so that the rotating shaft (302) is relatively fixed to the transmission wheel (303) in the circumferential direction of the rotating shaft (302).

3. The aerial photography device according to claim 1, wherein: The cross-sectional shape of the orientation rod (306) is non-circular. Correspondingly, the cross-sectional shape of the limit slideway is non-circular. Among them, the cross-section of the orientation rod (306) is a plane perpendicular to the length direction of the orientation rod (306); the cross-section of the limit slideway is a plane perpendicular to the length direction of the limit slideway.

4. The aerial photography device according to claim 1, characterized in that: A guide groove (202) is provided on the camera body. The second connection unit is arranged as a rotary joint (203). The rotary joint (203) is in sliding fit with the guide groove (202) along a direction perpendicular to the second axis. The rotary joint (203) is rotatably connected to one end of the orientation rod (306) away from the collar. The orientation rod (306) is used to drive the rotary joint (203) to move, so that the rotary joint (203) drives the camera body to swing while sliding in the limit slideway.

5. The aerial photography device according to claim 4, characterized in that: The limit slideway is arranged as a dovetail groove or a "T" - shaped groove.

6. The aerial photography device according to any one of claims 1 - 5, characterized in that: The aerial photography device further includes a driving motor (500). The driving motor (500) is connected to the aircraft (100). The output shaft (501) of the driving motor (500) is connected to the transmission wheel (303) and is coaxially arranged with the rotating shaft (302). The driving motor (500) is used to drive the transmission wheel (303) to rotate.

7. The aerial photography device according to claim 6, characterized in that: The aerial photography device further includes an adapter unit (600). The adapter unit (600) is connected to the transmission wheel (303). Both the rotating shaft (302) and the output shaft (501) of the driving motor (500) are connected to the adapter unit (600). And the torque of the rotating shaft (302) terminates at the adapter unit (600), so that when the rotating shaft (302) drives the transmission wheel (303) to rotate through the adapter unit (600), the output shaft (501) remains stationary; the torque of the driving motor (500) terminates at the adapter unit (600), so that when the output shaft (501) drives the transmission wheel (303) to rotate through the adapter unit (600), the rotating shaft (302) remains stationary.

8. The aerial photography device according to claim 7, characterized in that: The transfer unit (600) includes a transfer cylinder (601). The inner cylinder wall of the transfer cylinder (601) is provided with a first ratchet ring (602) and a second ratchet ring (603) that are arranged at intervals on the axis of the transfer cylinder (601). The transfer cylinder (601) penetrates through the transmission wheel (303) and is eccentrically arranged with respect to the transmission wheel (303). The transfer cylinder (601) and the transmission wheel (303) are relatively fixed in the circumferential direction of the transfer cylinder (601). A first ratchet pawl (604) is provided on the rotating shaft (302). The first ratchet pawl (604) is used to engage with the first ratchet ring (602) and is only used to drive the transfer cylinder (601) to rotate in a preset rotation direction. A second ratchet pawl (605) is provided on the output shaft (501). The second ratchet pawl (605) engages with the second ratchet ring (603) and is only used to drive the transfer cylinder (601) to rotate in the preset rotation direction.

Images