Photogrammetry unmanned aerial vehicle auxiliary protection equipment

Abstract

The auxiliary protection equipment comprises a protection containing cylinder which is connected with a cantilever of the unmanned aerial vehicle, one end of the protection containing cylinder is open, a protection sliding constraint column is connected into the protection containing cylinder in a sliding mode, and the protection sliding constraint column is connected with two extension protection arms through a C-shaped deflection connecting rod; one end of the deflection connecting rod is connected with the protective sliding constraint column through a first fixed hinge, and the other end is connected with the extension protective arm through a second fixed hinge; extension driving containing grooves are formed in the sides, close to each other, of the two extension protection arms, extension driving reeds are fixedly connected into the extension driving containing grooves, and the two ends of the extension driving reeds are fixedly connected into the two extension driving containing grooves correspondingly; the protection structure has good reliability and can achieve a multi-angle and all-directional protection effect on the unmanned aerial vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to auxiliary protection equipment for a photogrammetry unmanned aerial vehicle. Background Art

[0002] UAV aerial survey is a powerful supplement to traditional aerial photogrammetry. It is flexible, efficient, precise, low-cost, widely applicable, and has a short production cycle. It has obvious advantages in the rapid acquisition of high-resolution images in small areas and areas with difficult flight. With the development of UAV and digital camera technology, digital aerial photography technology based on UAV platforms has shown its unique advantages. The combination of UAV and aerial photogrammetry has made "UAV digital low-altitude remote sensing" a new development direction in the field of aerial remote sensing.

[0003] During the flight, drones will inevitably encounter unavoidable collision safety hazards. It may be that the propeller or the body hits an object, which in turn damages the drone and causes property loss. At present, the passive protection for drones mainly involves installing anti-collision enclosures, which are either fully enclosed or semi-enclosed. However, the fully enclosed type increases the overall weight of the drone, affecting the flight performance, and the semi-enclosed type sometimes cannot provide targeted and comprehensive protection. Another problem is that if the protective structure is too hard, it will not be able to effectively absorb energy and buffer in the event of a collision, which may cause the drone to lose control. If the protective structure is too soft, it may interfere with its own propeller due to deformation in the event of a collision, which may also cause the drone to lose control and be damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a photogrammetry UAV auxiliary protection device, which can play a good protective role on the UAV.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A photogrammetry UAV auxiliary protection device comprises a protection accommodating cylinder connected to the UAV cantilever and having one end open, a protection sliding restraint column slidably connected in the protection accommodating cylinder, and two extended protection arms are connected to the protection sliding restraint column via a C-shaped deflection connecting rod;

[0007] One end of the deflection link is connected to the protective sliding restraint column through a first fixed hinge, and the other end of the deflection link is connected to the extended protective arm through a second fixed hinge;

[0008] An extended drive receiving groove is provided on the side where the two extended protection arms are close to each other. An extended drive reed is fixedly connected in the extended drive receiving groove. Both ends of the extended drive reed are respectively fixedly connected in the two extended drive receiving grooves.

[0009] Preferably, the side of the extended protection arm has a plurality of extended protection accommodating grooves, an extended protection accommodating spring is arranged in the extended protection accommodating groove, an extended spring constraint groove is arranged on the inner side wall of the extended protection accommodating groove, and two coaxially arranged spring constraint columns are respectively arranged at both ends of the extended protection spring, and the spring constraint columns are slidably constrained in the extended spring constraint groove;

[0010] Two adjacent extended protective accommodating grooves are connected by a spring constraint through-hole, and two constraint winding and releasing wheels are rotatably connected in the protective accommodating tube. The rotating shaft of the constraint winding and releasing wheel extends radially along the protective accommodating tube and extends to the outside of the protective accommodating tube. A spring constraint cable is wound on the constraint winding and releasing wheel, and the other end of the spring constraint cable passes through each spring constraint through-hole in turn and is fixedly connected to the side wall of the farthest extended protective accommodating groove.

[0011] Description: During the flight, multiple arched and elastic extended protective springs can provide good protection for the drone. When a minor collision occurs, the extended protective springs can absorb the energy impact generated by the collision and buffer the energy.

[0012] Preferably, the side surface of the protective sliding restraint column has a clamping restraint accommodating hole extending in the radial direction thereof, a clamping restraint column is slidably connected in the clamping restraint accommodating hole, and a clamping restraint spring is provided in a top-pressing fit between the clamping restraint column and the bottom of the clamping restraint accommodating hole;

[0013] A snap-fitting hole is provided at a position near the opening end of the protection accommodating tube and penetrates in the radial direction thereof, and a snap-fitting limiting ring is fixed at the outer end of the snap-fitting hole.

[0014] Description: Driven by the clamping restraint spring, the outer end of the clamping restraint column is clamped and restrained in the clamping fitting hole, thereby limiting the protective sliding restraint column.

[0015] Preferably, the non-open end of the protective housing tube is connected to a body connecting short column through a ball hinge, and the body connecting short column is fixedly connected to the cantilever of the drone.

[0016] Description: The fuselage connecting short column is fixedly connected to the cantilever of the drone through screws, and the orientation angle of the protective container can be easily adjusted through the ball hinge.

[0017] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0018] 1. The utility model has a reasonable structural design, and the protective structure has good reliability, which can provide multi-angle and all-round protection for drones;

[0019] 2. The utility model is easy to operate. The protective structure is stored in a protective container, which is small and convenient for storage and arrangement;

[0020] 3. When a UAV has a minor collision, the extended protective reed in the protective structure can absorb the energy impact generated by the collision, buffer and absorb energy, avoid collision damage to the UAV, and to a large extent prevent the UAV from losing control and crashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 yes Figure 1 Right view of;

[0023] Figure 3 yes Figure 1 Top view of the .

[0024] In the figure, 10-protection accommodating cylinder, 11-protection sliding constraint column, 111-fixed hinge, 12-extended protection arm, 121-extended drive accommodating groove, 122-extended drive spring, 13-extended protection accommodating groove, 130-spring constraint perforation, 131-extended spring constraint groove, 14-extended protection accommodating spring, 141-spring constraint column, 15-constraint retractable wheel, 151-spring constraint cable, 16-snap-connection constraint accommodating hole, 161-snap-connection constraint column, 162-snap-connection constraint spring, 163-snap-connection matching hole, 164-snap-connection limit ring, 17-body connecting short column, 171-ball hinge. DETAILED DESCRIPTION

[0025] Combine the following Figure 1-Figure 3 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of the respective main views or structural schematic diagrams themselves.

[0026] Example:

[0027] A photogrammetry drone-assisted protection device, such as Figure 1 As shown, it includes a protection accommodating cylinder 10 connected to the drone cantilever and having one end open, a protection sliding restraint column 11 is slidably connected in the protection accommodating cylinder 10, and two extended protection arms 12 are connected to the protection sliding restraint column 11 through a C-shaped deflection connecting rod 111;

[0028] One end of the deflection link 111 is connected to the protective sliding restraint column 11 through a first fixed hinge 112, and the other end of the deflection link 111 is connected to the extended protective arm 12 through a second fixed hinge 113;

[0029] The two extended protection arms 12 have an extended drive receiving groove 121 on one side close to each other, and an extended drive spring 122 is fixedly connected in the extended drive receiving groove 121 . Both ends of the extended drive spring 122 are fixedly connected in the two extended drive receiving grooves 121 .

[0030] like Figure 2 As shown, the side of the extended protection arm 12 has a plurality of extended protection accommodating grooves 13, and the extended protection accommodating groove 13 is provided with an extended protection accommodating spring 14. The inner wall of the extended protection accommodating groove 13 has an extended spring restraining groove 131. The two ends of the extended protection accommodating spring 14 each have two coaxially arranged spring restraining columns 141, and the spring restraining columns 141 are slidably restrained in the extended spring restraining groove 131;

[0031] Two adjacent expansion protection accommodating grooves 13 are connected through a spring constraint through hole 130, such as Figure 3 As shown, there are two constraining reel-and-reel wheels 15 rotatably connected in the protective accommodating tube 10, and the rotating shafts of the constraining reel-and-reel wheels 15 extend radially along the protective accommodating tube 10 and extend to the outside of the protective accommodating tube 10, and a spring constraining cable 151 is wound on the constraining reel-and-reel 15, and the other end of the spring constraining cable 151 passes through each spring constraining through-hole 130 in turn and is fixedly connected to the side wall of an extended protective accommodating groove 13 at the farthest end.

[0032] like Figure 3 As shown, the side of the protective sliding restraint column 11 has a clamping restraint accommodating hole 16 extending in the radial direction thereof, a clamping restraint column 161 is slidably connected in the clamping restraint accommodating hole 16, and a clamping restraint spring 162 is provided between the clamping restraint column 161 and the bottom of the clamping restraint accommodating hole 16 in a top-pressing fit;

[0033] The protective accommodating tube 10 has a snap-fitting hole 163 extending radially therethrough at a position near the opening end thereof, and a snap-fitting limiting ring 164 is fixed to the outer end of the snap-fitting hole 163 .

[0034] like Figure 1 As shown, the non-open end of the protective container 10 is connected to the body connecting short column 17 through a ball hinge 171, and the body connecting short column 17 is fixedly connected to the cantilever of the drone.

[0035] In the actual application of the utility model, the body connecting short column 17 is fixedly connected to the cantilever of the drone by screws, and the orientation angle of the protective housing cylinder 10 is conveniently adjusted by the ball hinge 171;

[0036] The extended protection arm 12 is pulled out from the protection accommodating tube 10, and the extended protection arm 12 drives the deflection link 111 to move together with the protection sliding constraint column 11 toward the open end of the protection accommodating tube 10. When the protection sliding constraint column 11 moves to the snap-fitting hole 163, the outer end of the snap-fitting constraint column 161 is snap-fitted and constrained in the snap-fitting hole 163 under the drive of the snap-fitting constraint spring 162, thereby limiting the protection sliding constraint column 11.

[0037] Driven by the tension of the extended driving spring 122, the two extended protection arms 12 are respectively deflected and unfolded around the rotation axis of the second fixed hinge 113, so that the two extended protection arms 12 are approximately on the same straight line. At this time, the two extended protection arms 12 are outside the propeller of the drone;

[0038] The deflection link 111 is deflected around the axis of the first fixed hinge 112, and the deflection link 111 drives the two extended protection arms 12 to deflect together, so that the extended protection receiving slot 13 faces outward relative to the drone;

[0039] The expansion protection reed piece 14 is a bow-shaped elastic piece. Under the action of its own elasticity, the expansion protection reed piece 14 arches outward. At this time, the reed constraint cable 151 extends through the outer side of the expansion protection reed piece 14. The constraint retractable wire wheel 15 is manually rotated to adjust the tension of the reed constraint cable 151, thereby adjusting the arching degree of the expansion protection reed piece 14.

[0040] During the flight, the multiple arched and elastic extended protective spring plates 14 can provide good protection for the drone. When a slight collision occurs, the extended protective spring plates 14 can absorb the energy impact generated by the collision, buffer and absorb energy, avoid collision damage to the drone, and largely prevent the drone from losing control and crashing.

Claims

1. A photogrammetry drone auxiliary protection device, characterized in that: It comprises a protection accommodating cylinder (10) connected to the cantilever of an unmanned aerial vehicle and having an opening at one end, a protection sliding restraint column (11) being slidably connected inside the protection accommodating cylinder (10), and two extended protection arms (12) being connected to the protection sliding restraint column (11) via a C-shaped deflection connecting rod (111); One end of the deflection link (111) is connected to the protective sliding restraint column (11) via a first fixed hinge (112), and the other end of the deflection link (111) is connected to the extended protective arm (12) via a second fixed hinge (113); An extended drive receiving groove (121) is provided on one side of the two extended protection arms (12) close to each other, an extended drive reed (122) is fixedly connected in the extended drive receiving groove (121), and two ends of the extended drive reed (122) are respectively fixedly connected in the two extended drive receiving grooves (121).

2. The photogrammetry drone auxiliary protection device according to claim 1, characterized in that: The side of the extended protection arm (12) is provided with a plurality of extended protection accommodating grooves (13), an extended protection accommodating spring sheet (14) is arranged in the extended protection accommodating groove (13), an extended spring sheet restraining groove (131) is provided on the inner side wall of the extended protection accommodating groove (13), two coaxially arranged spring sheet restraining columns (141) are respectively provided at both ends of the extended protection accommodating spring sheet (14), and the spring sheet restraining columns (141) are slidably restrained in the extended spring sheet restraining groove (131); Two adjacent extended protective accommodating grooves (13) are connected via a spring constraint through-hole (130), and two constraint retractable wire wheels (15) are rotatably connected in the protective accommodating tube (10). The rotating shaft of the constraint retractable wire wheel (15) extends radially along the protective accommodating tube (10) and extends to the outside of the protective accommodating tube (10). A spring constraint cable (151) is wound on the constraint retractable wire wheel (15), and the other end of the spring constraint cable (151) passes through each spring constraint through-hole (130) in turn and is fixedly connected to the side wall of the most distal extended protective accommodating groove (13).

3. The photogrammetry drone auxiliary protection device according to claim 1, characterized in that: The side surface of the protective sliding restraint column (11) is provided with a clamping restraint accommodating hole (16) extending in its radial direction, a clamping restraint column (161) is slidably connected in the clamping restraint accommodating hole (16), and a clamping restraint spring (162) is provided between the clamping restraint column (161) and the bottom of the clamping restraint accommodating hole (16) in a press fit; The protective accommodating cylinder (10) has a snap-fitting hole (163) extending radially therethrough at a position close to the opening end, and a snap-fitting limiting ring (164) is fixed to the outer end of the snap-fitting hole (163).

4. The photogrammetry drone auxiliary protection device according to claim 1, characterized in that: The non-open end of the protective housing tube (10) is connected to a body connecting short column (17) via a ball hinge (171), and the body connecting short column (17) is fixedly connected to the cantilever of the drone.

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