Quick dismounting and mounting structure and method for aerial photography equipment externally hung on helicopter

Abstract

The invention belongs to the field of aerial photography, particularly relates to a quick disassembly and assembly structure and method for aerial photography equipment externally hung on a helicopter, and provides the following scheme aiming at the problems that existing equipment needs to be manually operated for multiple times, particularly when the equipment is installed under the belly of the helicopter, the space is small, installation is tedious, multi-person cooperation is needed, and manpower is wasted. The device comprises a hanging mechanism connected with a helicopter, a fixing mechanism for fixing photographic equipment and a supporting mechanism, and the fixing mechanism is pushed through the supporting mechanism to be connected with the hanging mechanism; the supporting mechanism comprises a moving box, the photographic equipment can be mounted more conveniently and quickly, the mounting difficulty is reduced, the manual labor amount is reduced, meanwhile, the movable plate is movably arranged, the position of the photographic equipment can be finely adjusted, the butt joint difficulty is reduced, and use is convenient; and the limiting frame, the insertion plate, the insertion rod and the limiting surface are matched to complete multi-angle reinforcement of the free pipe, so that the stability of the photographic equipment is improved, and the use safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial photography, and in particular to a quick disassembly and assembly structure and method for aerial photography equipment mounted on a helicopter. Background Art

[0002] Aerial photography refers to the technology of using an aircraft equipped with professional photographic equipment to shoot ground scenes from the air. It is widely used in surveying and mapping, urban planning, agricultural monitoring, disaster assessment, and film and television production. It usually requires the installation of an aerial photography system bracket and a stable platform.

[0003] The installation of traditional aerial photography equipment relies on bolt fixation or mechanical clamps, which requires multiple manual operations. Especially when installing under the belly of a helicopter, the space is small, the installation is cumbersome, and the cooperation of multiple people is required, which wastes manpower. To address the above problems, the present invention document proposes a rapid disassembly and assembly structure and method for aerial photography equipment for helicopter external mounting. Summary of the Invention

[0004] The present invention provides a structure and method for quickly disassembling and assembling aerial photography equipment for external mounting on a helicopter, which solves the shortcomings of the prior art that the equipment requires multiple manual operations, especially when installed under the belly of a helicopter, the space is small, the installation is cumbersome, and the cooperation of multiple people is required, which wastes manpower.

[0005] The present invention provides the following technical solutions:

[0006] A quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter, comprising a hanging mechanism connected to the helicopter, a fixing mechanism for fixing the photography equipment, and a supporting mechanism, wherein the fixing mechanism is pushed by the supporting mechanism to connect with the hanging mechanism;

[0007] The support mechanism includes a moving box, the top of the moving box is open and a movable plate is provided inside, a plurality of bull's eye balls are fixed to the inner wall of the bottom of the moving box for supporting the movable plate, one end of the movable plate is fixedly connected to two columns, the tops of the two columns are rotatably connected to a horizontal plate for supporting the fixing mechanism, one end of the horizontal plate is fixed to a support block, the surface of the movable plate is rotatably connected to two electric push rods, and one end of the output shaft of the two electric push rods is rotatably connected to the two horizontal plates respectively;

[0008] The surface of the movable box is fixedly connected to a limiting frame to limit the movable plate;

[0009] When the fixing mechanism and the hanging mechanism are docked, the movable plate can be moved to accelerate the docking of the fixing mechanism and the hanging mechanism;

[0010] The positioning mechanism is arranged at the bottom of the movable box and is used to keep the movable plate stable so as to connect the photographic equipment with the fixing mechanism.

[0011] Furthermore, the positioning mechanism includes an intermediate column fixed to the bottom of the movable plate and two sliders sliding through the bottom of the mobile box. The two sliders are symmetrically arranged and one side is fixedly connected to a mounting rod. The opposite end of the mounting rod is fixedly connected to a pressure plate. The pressure plates are both V-shaped and when the two pressure plates are close to each other, they squeeze the intermediate column to move the movable plate to the center position of the mobile box. A spring is installed between the bottoms of the two sliders through a spring seat.

[0012] Furthermore, the bottoms of the two sliders are rotatably connected to inclined connecting rods, the two connecting rods are arranged in an eight-shaped shape, and a T-shaped driving frame is rotatably connected between the connecting rods. The driving frame is slidably connected to the bottom of the mobile box, and one end of the driving frame is fixedly connected to a mounting plate, and a penetrating fixing bolt is inserted into one side of the mounting plate. The fixing bolt is threadedly connected to the mobile box, and the fixing bolt is normally threadedly connected to the mobile box to keep the movable plate stationary. When the hanging mechanism and the fixing mechanism are docked, the fixing bolt is separated from the mobile box to make the movable plate movable.

[0013] Furthermore, the hanging mechanism includes two support rods, the tops of the two support rods are fixedly connected with hanging plates for fixing to the lower hanging points of the helicopter, a fixing tube is fixed between the two support rods by bolts for supporting the fixing mechanism, and two first sliding sleeves are slidably connected around the fixing tube, and the first sliding sleeves are fixed to the fixing tube by bolts.

[0014] Furthermore, the fixing mechanism includes a free tube, and two second sliding sleeves are provided on the sliding sleeve around the free tube. The second sliding sleeves are fixed to the free tube by bolts, and an adapter plate for installing photographic equipment is fixed between the tops of the second sliding sleeves by bolts.

[0015] Furthermore, the adapter plate and the free tube are sent to the bottom of the helicopter for assembly through a supporting mechanism. During assembly, one end of the adapter plate is fixed to the fixed tube by bolts, and the free tube is fixed to the two support rods by bolts.

[0016] Furthermore, a reinforcement mechanism is provided between the two hanging plates and the free tube, and the reinforcement mechanism includes a limit frame and an insert plate. The insert plate is fixed on one side of one of the hanging plates, and the limit frame is fixed on one side of the free tube. Inclined guide surfaces are symmetrically provided at the opening of the limit frame for guiding the insert plate and the limit frame to be plugged in to keep the free tube horizontal and stable.

[0017] Furthermore, a penetrating plug rod is inserted into one side of the plug plate, and a tension spring is installed between the plug rod and the plug plate through a hook. A socket for use with the plug rod is opened on one side of one guide surface, and the plug rod moves along the guide surface and is inserted into the socket to keep the free tube laterally stable.

[0018] Furthermore, a limiting surface is provided on a side of the limiting frame away from the insertion hole, the top of the limiting surface is horizontally set and the side surface is inclined to limit the insertion rod and keep the free tube vertically stable.

[0019] The present invention also provides a method for quickly disassembling and assembling a structure of an aerial photography device mounted externally on a helicopter, comprising the following steps:

[0020] S1: Initial installation of the mounting mechanism. During installation, fix four mounting plates at the helicopter mounting point. Fix a support rod between the bottoms of two mounting plates on the same side. Slide two first sliding sleeves onto the fixing tubes. After determining their positions, secure them with bolts to complete the mounting mechanism.

[0021] S2: Assemble the fixing mechanism. After the free tube is fixed with the second sliding sleeve, it is placed on the horizontal plate in the support mechanism. Then, the adapter plate is fixed to the second sliding sleeve. After the assembly, the photographic equipment is connected and fixed to the adapter plate.

[0022] S3: Loosen the fixing bolt. The pressure plate and the slider release the restriction on the middle column under the action of the spring, allowing the movable plate to move freely, pushing the moving box to the bottom of the helicopter. As the moving box drives the free tube deeper, the plug plate and the limit frame are plugged in. At this time, the plug rod moves along the guide surface and is inserted into the socket. Through the cooperation between the limit frame, plug plate, plug rod and limit surface, the multi-angle reinforcement of the free tube is completed;

[0023] S4: Fix the adapter plate and the first sliding sleeve with bolts. When the adapter plate is assembled, the movable plate can be moved under the action of the bull's eye ball, which reduces the movement of the mobile box and reduces the difficulty of assembly. At the same time, the angle of the horizontal plate can be adjusted by the electric push rod, thereby changing the angle of the adapter plate, making it easier to connect the adapter plate with the fixed tube. After assembly, lower the horizontal plate to pull out the mobile box.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0025] In the present invention, by installing the photographic equipment on the adapter plate and then connecting it to the hanging mechanism, the photographic equipment can be installed more conveniently and quickly, the installation difficulty is reduced, and the amount of manual labor is reduced.

[0026] In the present invention, the movable plate is movable, so that when the fixing mechanism and the hanging mechanism are assembled, the position of the photographic device can be fine-tuned by moving the movable plate, which reduces the difficulty of docking and facilitates use.

[0027] In the present invention, the limiting frame and the plugging plate are used in conjunction with each other, so that the plugging rod and the plugging hole are plugged in. The limiting frame, the plugging plate, the plugging rod and the limiting surface cooperate to achieve multi-angle reinforcement of the free tube, thereby increasing the stability of the photographic equipment and improving the safety of use.

[0028] In the present invention, a V-shaped pressing plate is installed at the bottom of the movable box. When the adapter plate and the photographic equipment are assembled, the pressing plate can be used to squeeze and fix the middle column, thereby keeping the movable plate stable and facilitating operation by the staff.

[0029] In the present invention, the installation of photographic equipment can be more convenient and quick, the installation difficulty is reduced, and the amount of manual labor is reduced. At the same time, the movable plate movement setting can fine-tune the position of the photographic equipment, reduce the difficulty of docking, and facilitate use. The multi-angle reinforcement of the free tube is completed through the cooperation between the limit frame, the plug plate, the plug rod and the limit surface, thereby increasing the stability of the photographic equipment and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the three-dimensional structure of a quick disassembly and assembly structure of an aerial photography device mounted on a helicopter provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the support structure of a quick-disassembly structure for an aerial photography device mounted externally on a helicopter provided by an embodiment of the present invention;

[0032] Figure 3 A quick disassembly and assembly structure for an aerial photography device mounted on a helicopter provided by an embodiment of the present invention Figure 2 Schematic diagram of cross-section structure;

[0033] Figure 4 A schematic diagram of the structure of a hanging mechanism for a quick-disassembly structure of an aerial photography device mounted externally on a helicopter provided by an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of the fixing mechanism structure of a quick disassembly structure for an aerial photography device mounted externally on a helicopter provided by an embodiment of the present invention;

[0035] Figure 6 A quick disassembly and assembly structure for an aerial photography device mounted on a helicopter provided by an embodiment of the present invention Figure 5 Schematic diagram of the enlarged structure of point A.

[0036] Reference numerals:

[0037] 1. Hanging mechanism; 2. Fixing mechanism; 3. Support mechanism; 4. Moving box; 5. Movable plate; 6. Vertical column; 7. Horizontal plate; 8. Support block; 9. Electric push rod; 10. Limiting frame; 11. Intermediate column; 12. Slider; 13. Mounting rod; 14. Pressure plate; 15. Connecting rod; 16. Spring; 17. Driving frame; 18. Mounting plate; 19. Fixing bolt; 20. Hanging plate; 21. Support rod; 22. First sliding sleeve; 23. Fixed tube; 24. Free tube; 25. Adapter plate; 26. Second sliding sleeve; 27. Limiting frame; 28. Inserting plate; 29. ​​Inserting rod; 30. Tension spring; 31. Guide surface; 32. Socket; 33. Limiting surface; 34. Bull's eye ball bearing. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, 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 cannot be understood as a limitation on the embodiments of the present invention.

[0040] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0041] In one embodiment, referring to Figures 1-6A quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter comprises a hanging mechanism 1 connected to the helicopter, a fixing mechanism 2 for fixing the photography equipment, and a supporting mechanism 3. The fixing mechanism 2 is pushed by the supporting mechanism 3 to connect with the hanging mechanism 1. The push installation operation can make the installation of the photography equipment more convenient and quick, reduce the installation difficulty, and reduce the amount of manual labor.

[0042] The supporting mechanism 3 includes a moving box 4, the top of the moving box 4 is open and a movable plate 5 is provided inside. A plurality of bull's eye balls 34 are fixed to the inner wall of the bottom of the moving box 4 for supporting the movable plate 5. The position of the photographic equipment can be fine-tuned by moving the movable plate 5, which reduces the difficulty of docking and is convenient to use. One end of the movable plate 5 is fixedly connected to two columns 6, and the tops of the two columns 6 are rotatably connected to a horizontal plate 7 for supporting the fixing mechanism 2. One end of the horizontal plate 7 is fixed with a supporting block 8. The surface of the movable plate 5 is rotatably connected to two electric push rods 9, and one end of the output shaft of the two electric push rods 9 is rotatably connected to the two horizontal plates 7 respectively. The angle of the horizontal plate 7 is adjusted by the electric push rod 9, thereby changing the angle of the adapter plate 25, which facilitates the connection of the adapter plate 25 with the fixed tube 23;

[0043] The surface of the moving box 4 is fixedly connected to the limiting frame 10 to limit the movable plate 5;

[0044] When the fixing mechanism 2 and the hanging mechanism 1 are docked, the movable plate 5 can move to accelerate the docking of the fixing mechanism 2 and the hanging mechanism 1;

[0045] The positioning mechanism is arranged at the bottom of the movable box 4 and is used to keep the movable plate 5 stable so as to connect the photographic equipment with the fixing mechanism 2.

[0046] In the present invention, the positioning mechanism includes an intermediate column 11 fixed to the bottom of the movable plate 5 and two sliders 12 sliding through the bottom of the mobile box 4. The two sliders 12 are symmetrically arranged and are fixedly connected to a mounting rod 13 on one side. The opposite end of the mounting rod 13 is fixedly connected to a pressure plate 14. The pressure plates 14 are all V-shaped and when the two pressure plates 14 are close to each other, they squeeze the intermediate column 11 to move the movable plate 5 to the center position of the mobile box 4. When the adapter plate 25 is assembled with the photographic equipment, the intermediate column 11 can be squeezed and fixed by the pressure plate 14, thereby keeping the movable plate 5 stable and facilitating operation by the staff. A spring 16 is installed between the bottom of the two sliders 12 through a spring seat.

[0047] In particular, the bottoms of the two sliders 12 are rotatably connected to an inclined connecting rod 15, and the two connecting rods 15 are arranged in an eight-shaped shape. A T-shaped driving frame 17 is rotatably connected between the connecting rods 15, and the driving frame 17 is slidably connected to the bottom of the mobile box 4. One end of the driving frame 17 is fixedly connected to a mounting plate 18, and a penetrating fixing bolt 19 is inserted into one side of the mounting plate 18. The fixing bolt 19 is threadedly connected to the mobile box 4. When the fixing bolt 19 is loosened, the pressure plate 14 and the slider 12 release the restriction on the middle column 11 under the action of the spring 16, so that the movable plate 5 can move freely. The fixing bolt 19 is normally threadedly connected to the mobile box 4 to keep the movable plate 5 stationary. When the hanging mechanism 1 and the fixing mechanism 2 are docked, the fixing bolt 19 is separated from the mobile box 4 to make the movable plate 5 movable.

[0048] It should be noted that the hanging mechanism 1 includes two support rods 21, and the tops of the two support rods 21 are fixedly connected with hanging plates 20 for fixing to the lower hanging points of the helicopter. A fixing tube 23 is fixed between the two support rods 21 by bolts to support and fix the fixing mechanism 2. Two first sliding sleeves 22 are slidably connected around the fixing tube 23, and the first sliding sleeve 22 is fixed to the fixing tube 23 by bolts. Four hanging plates 20 are fixed at the helicopter hanging point position, and the support rods 21 are fixed between the bottoms of the two hanging plates 20 on the same side. Two first sliding sleeves 22 are mounted on the fixing tube 23, and their positions are determined and fixed by bolts to complete the installation of the hanging mechanism 1. It does not need to be disassembled after the first installation. The fixing mechanism 2 and the photographic equipment can be disassembled separately, which is more convenient when reinstalled.

[0049] In the present invention, the fixing mechanism 2 includes a free tube 24, and two second sliding sleeves 26 are provided on the sliding sleeve around the free tube 24. The second sliding sleeves 26 are fixed to the free tube 24 by bolts. The positions of the second sliding sleeves 26 and the first sliding sleeve 22 can be freely adjusted to improve their adaptability. An adapter plate 25 for installing photographic equipment is fixed between the tops of the second sliding sleeves 26 by bolts.

[0050] In particular, the adapter plate 25 and the free tube 24 are sent to the bottom of the helicopter through the support mechanism 3 for assembly. During assembly, one end of the adapter plate 25 is fixed to the fixed tube 23 by bolts, and the free tube 24 is fixed to the two support rods 21 by bolts.

[0051] In another embodiment, referring to Figures 1-6 Based on Example 1, a quick disassembly and assembly structure of aerial photography equipment for helicopter external mounting is improved.

[0052] In one possible design, a reinforcement mechanism is provided between the two hanging plates 20 and the free tube 24. The reinforcement mechanism includes a limit frame 27 and an insert plate 28. The insert plate 28 is fixed on one side of one of the hanging plates 20, and the limit frame 27 is fixed on one side of the free tube 24. An inclined guide surface 31 is symmetrically provided at the opening of the limit frame 27 to guide the insert plate 28 and the limit frame 27 to plug in and keep the free tube 24 horizontal and stable. As the moving box 4 drives the free tube 24 deeper, the insert plate 28 and the limit frame 27 are plugged in to increase the stability of the free tube 24.

[0053] In particular, a penetrating rod 29 is inserted into one side of the plug plate 28, and a tension spring 30 is installed between the plug rod 29 and the plug plate 28 through a hook. A socket 32 ​​for use with the plug rod 29 is opened on one side of one guide surface 31. The plug rod 29 moves along the guide surface 31 and is inserted into the socket 32 ​​to maintain the lateral stability of the free tube 24. At this time, the plug rod 29 moves along the guide surface 31 and is inserted into the socket 32, further increasing the stability of the free tube 24.

[0054] It should be noted that a limiting surface 33 is set on the side of the limiting frame 27 away from the insertion hole 32. The top of the limiting surface 33 is set horizontally and the side is set inclined to limit the insertion rod 29 to keep the free tube 24 vertically stable. The multi-angle reinforcement of the free tube 24 is completed through the cooperation between the limiting frame 27, the insertion plate 28, the insertion rod 29 and the limiting surface 33, which increases the stability of the photographic equipment and improves the safety of use.

[0055] The present invention also provides a method for quickly disassembling and assembling a structure of an aerial photography device mounted externally on a helicopter, comprising the following steps:

[0056] S1: Initial installation of the mounting mechanism 1. During installation, four mounting plates 20 are fixed to the helicopter mounting point. A support rod 21 is fixed between the bottoms of two mounting plates 20 on the same side. Two first sliding sleeves 22 are fitted onto the fixing tube 23. After their positions are determined, they are fixed with bolts to complete the installation of the mounting mechanism 1.

[0057] S2: Assemble the fixing mechanism 2. After the free tube 24 is sleeved with the second sliding sleeve 26 and fixed, it is placed on the horizontal plate 7 in the support mechanism 3. Then, the adapter plate 25 is fixed to the second sliding sleeve 26. After the assembly, the photographic equipment is connected and fixed to the adapter plate 25.

[0058] S3: Loosen the fixing bolt 19. The pressure plate 14 and the slider 12 release the restraint on the middle column 11 under the action of the spring 16, allowing the movable plate 5 to move freely, pushing the movable box 4 to the bottom of the helicopter. As the movable box 4 drives the free tube 24 deeper, the plug plate 28 is plugged into the limit frame 27. At this time, the insertion rod 29 moves along the guide surface 31 and is inserted into the insertion hole 32. Through the cooperation between the limit frame 27, the plug plate 28, the insertion rod 29 and the limit surface 33, the multi-angle reinforcement of the free tube 24 is completed.

[0059] S4: Fix the adapter plate 25 and the first sliding sleeve 22 with bolts. When the adapter plate 25 is assembled, the movable plate 5 can be moved under the action of the bull's eye ball 34, reducing the movement of the mobile box 4 and reducing the difficulty of assembly. At the same time, the angle of the cross plate 7 can be adjusted by the electric push rod 9, thereby changing the angle of the adapter plate 25, making it convenient to connect the adapter plate 25 with the fixed tube 23. After assembly, the cross plate 7 can be lowered to pull out the mobile box 4.

[0060] However, as is well known to those skilled in the art, the working principle and wiring method of the electric push rod 9 are commonplace, and are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0061] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The embodiments of the present invention and the features therein can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter, characterized in that: include: A hanging mechanism (1) connected to the helicopter, a fixing mechanism (2) for fixing the photographic equipment, and a supporting mechanism (3), wherein the fixing mechanism (2) is pushed by the supporting mechanism (3) to connect with the hanging mechanism (1); The support mechanism (3) includes a moving box (4), the upper portion of the moving box (4) is open and a movable plate (5) is provided inside. A plurality of bull's eye balls (34) are fixed to the inner wall of the bottom of the moving box (4) for supporting the movable plate (5). One end of the movable plate (5) is fixedly connected to two upright posts (6). The tops of the two upright posts (6) are rotatably connected to a transverse plate (7) for supporting the fixing mechanism (2). One end of the transverse plate (7) is fixed to a support block (8). The surface of the movable plate (5) is rotatably connected to two electric push rods (9). One end of the output shaft of the two electric push rods (9) is rotatably connected to the two transverse plates (7) respectively. The surface of the movable box (4) is fixedly connected to a limiting frame (10) to limit the movable plate (5); When the fixing mechanism (2) and the hanging mechanism (1) are docked, the movable plate (5) can be moved to accelerate the docking of the fixing mechanism (2) and the hanging mechanism (1); A positioning mechanism is provided at the bottom of the movable box (4) and is used to keep the movable plate (5) stable so as to connect the photographic equipment with the fixing mechanism (2).

2. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 1, characterized in that: The positioning mechanism comprises an intermediate column (11) fixed to the bottom of the movable plate (5) and two sliders (12) slidingly passing through the bottom of the movable box (4). The two sliders (12) are symmetrically arranged and fixedly connected to a mounting rod (13) on one side. The opposite ends of the mounting rod (13) are fixedly connected to a pressure plate (14). The pressure plates (14) are both V-shaped and, when the two pressure plates (14) are close to each other, squeeze the intermediate column (11) to move the movable plate (5) to the center of the movable box (4). A spring (16) is installed between the bottoms of the two sliders (12) via a spring seat.

3. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 2, characterized in that: The bottoms of the two sliders (12) are both rotatably connected to a connecting rod (15) that is arranged obliquely. The two connecting rods (15) are arranged in an "eight" shape. A T-shaped driving frame (17) is rotatably connected between the connecting rods (15). The driving frame (17) is slidably connected to the bottom of the moving box (4). One end of the driving frame (17) is fixedly connected to a mounting plate (18). A through-going fixing bolt (19) is inserted into one side of the mounting plate (18). The fixing bolt (19) is threadedly connected to the moving box (4). The fixing bolt (19) is normally threadedly connected to the moving box (4) to keep the movable plate (5) immovable. When the hanging mechanism (1) and the fixing mechanism (2) are docked, the fixing bolt (19) is separated from the moving box (4) to make the movable plate (5) movable.

4. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 1, characterized in that: The hanging mechanism (1) comprises two support rods (21), the tops of the two support rods (21) are fixedly connected with hanging plates (20) for fixing to the lower hanging points of the helicopter, a fixing pipe (23) is fixed between the two support rods (21) by bolts for supporting and fixing the fixing mechanism (2), two first sliding sleeves (22) are slidably connected around the fixing pipe (23), and the first sliding sleeves (22) and the fixing pipe (23) are fixed by bolts.

5. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 4, characterized in that: The fixing mechanism (2) comprises a free tube (24), two second sliding sleeves (26) are provided around the free tube (24), the second sliding sleeves (26) are fixed to the free tube (24) by bolts, and an adapter plate (25) for mounting photographic equipment is fixed between the tops of the second sliding sleeves (26) by bolts.

6. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 5, characterized in that: The adapter plate (25) and the free tube (24) are sent to the bottom of the helicopter through the support mechanism (3) for assembly. During assembly, one end of the adapter plate (25) is fixed to the fixed tube (23) by bolts, and the free tube (24) is fixed to the two support rods (21) by bolts.

7. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 5, characterized in that: A reinforcement mechanism is provided between the two hanging plates (20) and the free tube (24), the reinforcement mechanism comprising a limit frame (27) and an inserting plate (28), the inserting plate (28) being fixed on one side of one of the hanging plates (20), the limit frame (27) being fixed on one side of the free tube (24), and an inclined guide surface (31) being symmetrically provided at the opening of the limit frame (27) for guiding the inserting plate (28) and the limit frame (27) to be plugged in and keep the free tube (24) horizontal and stable.

8. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 7, characterized in that: A through-going plug rod (29) is inserted into one side of the plug plate (28), and a tension spring (30) is installed between the plug rod (29) and the plug plate (28) via a hook. A socket (32) for use with the plug rod (29) is provided on one side of one guide surface (31). The plug rod (29) moves along the guide surface (31) and is inserted into the socket (32) to keep the free tube (24) laterally stable.

9. The quick disassembly and assembly structure for aerial photography equipment mounted on a helicopter according to claim 8, characterized in that: A limiting surface (33) is provided on one side of the limiting frame (27) away from the insertion hole (32). The top of the limiting surface (33) is horizontally arranged and the side surface is inclined so as to limit the insertion rod (29) and keep the free tube (24) vertically stable.

10. A method for quickly disassembling a structure for an aerial photography device mounted externally on a helicopter according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The hanging mechanism (1) is installed for the first time. During installation, four hanging plates (20) are fixed at the helicopter hanging point position, a support rod (21) is fixed between the bottoms of two hanging plates (20) on the same side, two first sliding sleeves (22) are sleeved on the fixing tube (23), and after determining their positions, they are fixed with bolts to complete the installation of the hanging mechanism (1); S2: The fixing mechanism (2) is assembled, the free tube (24) is sleeved with the second sliding sleeve (26) and then placed on the horizontal plate (7) in the supporting mechanism (3), and then the adapter plate (25) and the second sliding sleeve (26) are fixed. After the assembly, the photographic equipment is connected and fixed to the adapter plate (25); S3: Loosen the fixing bolt (19), and the pressure plate (14) and the slider (12) release the restriction on the middle column (11) under the action of the spring (16), so that the movable plate (5) can move freely, and push the moving box (4) to the bottom of the helicopter. As the moving box (4) drives the free tube (24) to go deeper, the plug plate (28) is plugged into the limit frame (27). At this time, the plug rod (29) moves along the guide surface (31) and is inserted into the plug hole (32). The multi-angle reinforcement of the free tube (24) is completed through the cooperation between the limit frame (27), the plug plate (28), the plug rod (29) and the limit surface (33); S4: The adapter plate (25) is fixed to the first sliding sleeve (22) by bolts. When the adapter plate (25) is assembled, the movable plate (5) can be moved under the action of the bull's eye ball (34), thereby reducing the movement of the mobile box (4) and reducing the difficulty of assembly. At the same time, the angle of the horizontal plate (7) can be adjusted by the electric push rod (9), thereby changing the angle of the adapter plate (25), making it easier to connect the adapter plate (25) with the fixed tube (23). After assembly, the horizontal plate (7) can be lowered to pull out the mobile box (4).

Images