TWI603771B - Assembled-type protection device for unmanned aerial vehicle - Google Patents

Description

Combined protection device for unmanned aerial vehicles

The present invention relates to a combined protection device, and more particularly to a combined protection device for an unmanned aerial vehicle.

At present, the common unmanned aerial vehicles are mainly powered by multi-axis propellers, while the mainstream sizes can be roughly classified into large and small. Among them, large unmanned aerial vehicles are mainly used in outdoor spacious operating environments, while small unmanned aerial vehicles are suitable for indoor operating environments due to their thin body and poor wind resistance.

However, although the UAV does not need to worry about external wind speed and weather when operating indoors, it is easy to cause the UAV to hit indoor walls, ceilings or other furnishings during flight because of the short effective indoor activity distance. Not easy to use. On the other hand, although some UAVs are currently equipped with protective devices, the actual protective devices are too bulky, which in turn causes the UAV to not only lose its light and flexible characteristics, but also is not easy to distribute or carry; Some protection devices are integrally formed with the fuselage of the UAV. Therefore, the protection device often needs to redesign the protection structure for the specific size ratio of the specific UAV, thereby increasing the cost of design and manufacture and the cost of distribution.

There are also anti-collision protection devices that use sound waves, light waves or image detection to judge the surrounding environment and adjust the flight direction of the UAV in time. However, such devices need to use electricity. When the power is insufficient, such devices are prone to lose the protection effect. When the power is insufficient, when the unmanned aerial vehicle is unstable, the wireless signal transmission is poor, which makes the remote control and control difficult, and the aircraft is easily damaged. Therefore, when the protection device is most needed, the protection effect is easily lost, so it is necessary to not rely on the power. Anti-collision protection device.

In view of the shortcomings of the above-mentioned conventional unmanned aerial vehicles, there is a need for a protective device structure that can be easily loaded and unloaded on an unmanned aerial vehicle, especially when the protective device is used before or after the installation, the volume occupied by the assembled components of the protective device will be It can be greatly reduced, which can effectively improve the convenience of distribution and carrying.

The problem to be solved by the present invention is to provide a combined protection device for an unmanned aerial vehicle, and the protection device structure of the UAV can be easily loaded and unloaded, in particular, the assembly space of the protection device takes up very little space before or after installation. And can improve the convenience of distribution and carrying

In order to solve the above problems, the present invention provides a combined protection device for an unmanned aerial vehicle, wherein the unmanned aerial vehicle includes a main body and a plurality of propellers, and each propeller has a protective frame and correspondingly disposed on one of the arms of the main body. The combined protection device comprises a plurality of first protection rails, at least two protection poles, a plurality of first rail fasteners and a plurality of first pole fixtures. Each first protective crossbar connection is combined between two adjacent protective frames. Each protective ejector connection is combined with two opposite protective frames to form a protective top frame. The first crossbar fixing member is for fixing the first protection crossbar to the protection frame. The first ram fixing member is used to fix the protection ram to the protection frame.

100‧‧‧Combined protective device for unmanned aerial vehicles

110‧‧‧First protection crossbar

112‧‧‧First crossbar fixture

120‧‧‧Protection ejector

120a-d‧‧‧ child protection ejector

122‧‧‧First pole fixing

124‧‧‧Second pole fixings

125a‧‧‧Side rod fixings

125b‧‧‧Side rod fixings

130‧‧‧Second protection crossbar

132‧‧‧Second crossbar fixture

134‧‧‧ third protection crossbar

136‧‧‧ Third crossbar fixture

140‧‧‧Support unit

142‧‧‧Support rod

144‧‧‧ Pulling the main pole

150‧‧‧protection frame

152‧‧‧protective frame fixings

200‧‧‧Unmanned aerial vehicles

210‧‧‧ Subject

212‧‧‧arms

220‧‧‧propeller

230‧‧‧protective frame

232‧‧‧Support rod

1A and 1B respectively show an external perspective view and a top view of a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention.

FIG. 1C is a top plan view of a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention.

FIG. 2A is a schematic diagram showing a combined configuration of a protection ram and a second protection crossbar for a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention.

2B to 2D are respectively a schematic diagram showing a combined configuration of a protection ram and a second ram fixing member for a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention.

FIG. 3A and FIG. 3B respectively illustrate a combined configuration of a protection ram, a second ram fixing member and a receiving unit for a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention. schematic diagram.

FIG. 4A is a top plan view of a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention.

FIG. 4B is a top plan view of a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention.

Please refer to FIG. 1A and FIG. 2B simultaneously, which respectively show an external perspective view and a top view of a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention. As shown, a combined protection device 100 for an unmanned aerial vehicle 200, wherein the unmanned aerial vehicle 200 includes a body 210 And a plurality of propellers 220, and each of the propellers 220 has a protective frame 230 and correspondingly disposed on one of the arms 212 of the main body 210. The combined protection device 100 includes a plurality of first protection crossbars 110 and at least two protection tops. The rod 120, the plurality of first cross rod fixing members 112 and the plurality of first top rod fixing members 122. Each of the first protection rails 110 is coupled and coupled between two adjacent protection frames 230. Each protection ejector 120 is coupled to the two opposite protective frames 230 to form a protective top frame. The first crossbar fixing member 112 is used to fix the first protection rail 110 on the protection frame 230. The first pole fixing member 122 is used to fix the protection rod 120 on the protection frame 230. In this embodiment, the protection frame 230 of each propeller 220 has an arc-shaped appearance, and the protection frame 230 is correspondingly connected to the arm portion 212 of the main body 210 of the UAV 200 through a plurality of support bars 232.

More specifically, the two ends of each of the first protection rails 110 are respectively fixed to the protection frame 230 of the two adjacent propellers 220 by the first crossbar fixing member 112, so that the first protection rails 110 are spaced apart. The protection frame 230 is connected to the periphery of the main body 210 of the UAV 200, thereby effectively providing the anti-collision and anti-drop structure for the UAV 200 to move horizontally on the front, rear, left, and right. On the other hand, the two ends of the protection ejector pin 120 are respectively connected to the two opposite protection frames 230 through the first ejector fixing member 122 to form a protective top frame, thereby providing the UAV 200 to move vertically up and down. Protection against collision and drop structures.

With reference to the first A and the first B, in one embodiment, the combined protection device 100 for the unmanned aerial vehicle may further include a plurality of second protection rails 130, wherein each of the second protection rails 130 The connection is combined between two adjacent protective rams 120. In addition, the combined protection device 100 can also have a plurality of second crossbar fixing members 132 for fixing the second protection rails 130 to the protection ejector pins 120. In this way, the second protection rail 130 can pass through the second crossbar fixing member 132, and is connected between the protection ejector pins 120, thereby surrounding a polygon, such as the quadrilateral shown in FIG. Second, the combination The protection device 100 further includes a second ram fixing member 124 disposed on the top of the protection top frame, that is, where the two protection ejector pins 120 overlap each other, and is used for fixing the protection ejector pin 120 to avoid the protection top The lever 120 produces sway and offset. In this way, by the second protection rail 130, the second rail fixing member 132 and the second pole rod fixing member 124, the structural stability of the protection top frame can be greatly effectively enhanced, so that the upper half of the unmanned aerial vehicle 200 is raised. The anti-collision and anti-drop effect of the department.

However, the first protection rail 110, the protection pole 120 and the second protection rail 130 have a flexible material or an elastic material, such as an elastic carbon fiber rod or a plastic rod, thereby providing the combined protection device 100 for assembly. Convenience, for example, moderately flexing or flexing the protective ram 120 to more effectively protect the body 210 and the propeller 220 of the UAV 200. In addition, in terms of appearance, the first protection rail 110, the protection ram 120 and the second protection rail 130 may be solid or hollow long cylinders, or solid or hollow rectangular cylinders. However, the materials and appearance characteristics of the first protection rail 110, the protection ram 120 and the second protection rail 130 disclosed in the present invention are not limited thereto, and other suitable shapes and materials may be applied according to actual needs and designs. It. On the other hand, the first crossbar fixing member 112, the second crossbar fixing member 132, the first ejector fixing member 122 and the second ram fixing member 124 are respectively a set of rings, wherein the collar can have an elastic material Or rigid materials such as rubber or other suitable materials. However, the present invention is not limited thereto, and may also be used to increase the assembly of a plurality of third crossbars and a plurality of fourth crossbars between the protection rams according to the size of the unmanned aerial vehicle. Corresponding to the third crossbar fixing member and the fourth crossbar fixing member to improve the stability of the overall structure of the protective top frame.

In addition, in another embodiment of the present invention, the first protection rail, the second protection rail, the protection pole, the first rail fixture, the second rail fixture, the first pole fixture, and the second At least one of the ejector fixing members may be made of carbon fiber material, plastic material or thin-walled metal according to actual design requirements, and the thin-wall metal may be a suitable metal such as stainless steel, aluminum or titanium alloy.

Please refer to the first A diagram and the first B diagram of the present case. As shown in the figure, when the number of the propellers 220 is four, the length of each protection ram 120 is 1.2 to 2 times the diagonal length of the main body. However, in another embodiment, when the number of the propellers 220 is six or more, the length of each of the protective ejector pins 120 is 1.1 to 2 times the diagonal length of the main body. By the above-mentioned length ratio range of the protection ejector 120, the size of the protection top frame can be optimized, the wind resistance can be prevented from being excessively large, or the volume size is too small to provide a protective effect substantially effectively.

Please refer to FIG. 1C, which illustrates a top view of a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention, which is suitable for relatively large unmanned aerial vehicles. The combined protection device 100 disclosed in this embodiment is mainly related to the configuration of the second protection rail 130, which can be more suitably applied to a large unmanned aerial vehicle. Each of the second protection rails 130 in the embodiment is not only connectable and can be combined between the two adjacent protection ejector pins 120, and at the same time, the two ends of each of the second protection rails 130 are respectively combined and connected to the protection. At least one end of each of the second protective rails 130 is affixed to the protective frame 230 by the first crossbar fixture 112. In addition, a third protection crossbar 134 may be additionally added between the two adjacent protection rails 130. More specifically, each of the third protection rails 134 may respectively pass through the third crossbar fixture. 136, respectively, is fixed between the two adjacent protection rails 130, thereby increasing the structural stability of the protection top frame.

Please refer to FIG. 2A, which illustrates a combined configuration diagram of a protection ram and a second protection crossbar for a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention. As shown in the figure, the protection ejector 120 can have a squat appearance, wherein the two short sides of the protection ejector 120 are connected to the two opposite protection frames 230, and the long side of the protection ejector 120 is located in the unmanned aerial vehicle 200. Above the body 210 and the propeller 220. In another preferred embodiment, the vertical distance between the long side of the protection ram 120 and the top of the propeller 220 is at least 0.3 cm. In addition, the two sides of the protection pole 120 have long sides, The second cross bar 130 can also be respectively assembled and fixed by the second cross bar fixing member 132 to form a polygon, thereby increasing the structural stability of the protective top frame. However, the present invention is not limited thereto, and may also be used to increase the assembly of a plurality of third crossbars and a plurality of fourth crossbars between the protection rams according to the size of the unmanned aerial vehicle. Corresponding to the third crossbar fixing member and the fourth crossbar fixing member to improve the stability of the overall structure of the protective top frame.

Referring to FIG. 2B, a schematic diagram of a combined configuration of a protection ram and a second ram fixing member for a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention is shown. As shown, the second jack mount 124 can be a multi-hole kit and the guard jack 120 includes two sub-guard jacks 120a, 120b. The sub-protecting ejector pins 120a, 120b can be correspondingly sleeved in the two opposite holes of the porous sleeve, thereby not only improving the combination efficiency between the protection ejector pins 120, but also fixing the protection between the ejector pins 120. Angle. However, the combination between the second ram fixing member and the second ram fixing member disclosed in the present invention is not limited thereto, and other suitable combined connection manners may also be applied, such as a snap-on connection.

Please refer to FIG. 2C and FIG. 2D respectively, which respectively illustrate a combination of a protection ram and a second ram fixing member for a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention. Configuration diagram. As shown in FIG. 2C, the second jack fixing member 124 may include two sub-rod fixing members 125a, 125b each having a rectangular appearance and each of the two ends also corresponding to the two-sided and communicating holes. The second ejector fixing member 124 can be superposed on each other by the two ejector fixing members 125a and 125b to form a cross or X-shaped composite structure, so that the two welcoming protection ejector pins 120 can be completely overlapped and disposed. It is fixed in the sub-rod fixing members 125a, 125b. In addition, the sub-rod fixing members 125a and 125b can be combined with the above-mentioned overlapping fastening or the like, or the integrated forming process.

More specifically, for example, the second jack fixing member 124 as shown in FIG. 2D, wherein the sub-rod fixing members 125a, 125b are integrally formed, wherein the sub-rod fixing members 125a, 125b are formed. They are arranged alternately with each other, and the two corresponding communication hole slots are also arranged in a staggered layer. In addition, however, the heights H1 and H2 of the sub-rod fixing members 125a, 125b can be given a specific multiple proportional relationship according to actual design requirements. In this embodiment, the height H2 of the sub-rod fixing member 125b is twice the height H1 of the sub-rod fixing member 125a, so that the top of the second jack fixing member 124 can be a flat surface, and at the same time two The protective ejector pins 120 of the rendezvous can also be completely overlapped and fixed in the sub-rod fixing members 125a, 125b.

In addition, in another embodiment of the present invention, the first protection crossbar, the protection ejector rod, the sub protection ejector rod, the retracting main rod, the support sub rod, the first cross rod fixing member and the first ejector fixing member are at least One can also be made of carbon fiber material, plastic material or thin-walled metal according to actual design requirements, and the thin-walled metal can be suitable metal such as stainless steel, aluminum or titanium alloy. Please refer to FIG. 3A and FIG. 3B respectively, which respectively illustrate a protection ejector, a second ram fixing member and a support for a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention. Schematic diagram of the combination of units. As shown in the figure, the combined protection device 100 further includes a receiving unit 140, and the protection ejector 120 has four sub-protecting ejector pins 120a-d that are respectively pivotally connected to the second ram fixing member 124. The receiving unit 140 can include a pull main rod 144 and a plurality of support rods 142, wherein the pull main rod 144 is disposed in the second jack fixing member 124, and one end of the pull main rod 144 is respectively One end of each of the support rods 142 is pivotally connected to one end of each of the support rods 142, and the other end of each of the support rods 142 is pivotally connected to one of the sub-protection rods 120a-d. In this way, when the user pulls the pull main rod 144, the support rod 142 will be linked with the pull main rod 144, and correspondingly open the protection rod 120a-d, as shown in the third A; On the one hand, when the user pushes and pulls the main lever 144, the support lever 142 will interlock with the pull main lever 144, thereby corresponding to the tamper protection ejector pins 120a-d, as shown in FIG.

Please refer to FIG. 4A, which illustrates a top view of a combined protection device for an unmanned aerial vehicle according to a preferred embodiment of the present invention. As shown, a combined protection device 100 for an unmanned aerial vehicle 200 includes a main body 210 and a plurality of propellers 220. The combined protection device 100 includes a plurality of first protection rails 110, a plurality of first protection rail fixtures 112, a plurality of protection frames 150, and a plurality of protection frame fixtures 152. The first protection rails 110 are sequentially cross-connected to the main body 210, wherein the number of the protection rails 110 is equal to the number of the propellers 220. The first protection rail fixing member 112 is for fixing the first protection rail 110 to the main body 210. Each protection frame 150 is coupled to the end of two corresponding first protection rails 110 disposed on both sides of each propeller 220 to surround each of the propellers 220. The protection frame fixing member 152 is used to fix each protection frame 150 at the end of the two corresponding first protection rails 110. With this combination of structures, the protection structure of the main body 210 of the UAV 200 and the propeller 220 in front, rear, left, and right directions can be effectively provided.

More specifically, the four first protection rails 110 as shown in FIG. 4A are sequentially cross-connected to the main body 210, wherein each of the two first protection rails 110 overlaps the main body 210. An arm portion 212 is simultaneously fixed to the arm portion 212 by the first protective crossbar fixing member 112 to form a well-shaped protection structure. Then, each protection frame 150 is connected to the outer side of the propeller 220 and connected to the end points of the two corresponding first protection rails 110 through the protection frame fixing member 152, thereby providing complete anti-collision and anti-dropping around the UAV 200. structure. However, the combined configuration relationship between the first protection rail 110 and the main body 210 disclosed in the present invention is not limited thereto.

For example, please refer to FIG. 4B at the same time, which illustrates a top view of a combined protection device for an unmanned aerial vehicle according to another preferred embodiment of the present invention. The four first protection rails 110 in the fourth B diagram are sequentially connected to the main body 210 to form a well-shaped protection structure, which is opposite to the fourth protection rail 110 by the fourth protection diagram 110. The well-shaped protection structure formed by the combination, the difference between the two is 45 degrees The angle of rotation. In other words, the combined connection configuration relationship between the first protection rail 110 and the main body 210 of the UAV 200 can be easily changed and replaced according to the actual needs of the user.

In addition, the combined protection device 100 may further include at least two protection ejector pins 120 and a plurality of first ram support members 122. Wherein, the protection ejector 120 is coupled to the two opposite protective frames 150 to form a protective top frame. The ram fixing member 122 is used to fix the protection ejector 120 to the protection frame 150. However, since the configuration features and functions of the protection ejector 120 and the ejector fixing member 122 and the protective top frame formed in the embodiment are the same as those of the foregoing embodiment, they are not described again.

Secondly, the first protection rail 110, the protection frame 150 and the protection ejector 120 in the embodiment have a flexible material or an elastic material, such as an elastic carbon fiber rod or a plastic rod, thereby providing the combined protection device 100 for assembly. The convenience, for example, the protective frame 150 can be moderately bent or flexed by an elastic plastic rod to surround the outer side of the propeller 220.

Furthermore, in terms of appearance, it may be a solid or hollow long cylinder, or a solid or hollow rectangular cylinder. However, the materials and appearance characteristics of the first protection rail 110, the protection frame 150 and the protection ejector 120 disclosed in the present invention are not limited to this disclosure, and other suitable shapes and materials may be applied according to actual needs and designs. On the other hand, the first crossbar fixing member 112, the protective frame fixing member 152, and the first ejector fixing member 122 are respectively an elastic collar, such as a rubber band or other elastic material kit.

In addition, in another embodiment of the present invention, at least one of the first protection crossbar, the protection frame, the protection ejector, the first crossbar fixing component, the protection frame fixing component and the first ejector fixing component may also be according to actual conditions. Design requirements, and are made of carbon fiber material, plastic material or thin-walled metal, and thin-walled metal can be suitable metal such as stainless steel, aluminum or titanium alloy.

The embodiments of the present invention are merely illustrative of the technical spirit and characteristics of the present invention, and the objects of the present invention can be understood by those skilled in the art, and the scope of the present invention cannot be limited thereto. All other equivalents and modifications of the inventions which are made without departing from the spirit of the invention are intended to be included within the scope of the invention.

100‧‧‧Combined protective device for unmanned aerial vehicles

110‧‧‧First protection crossbar

112‧‧‧First crossbar fixture

120‧‧‧Protection ejector

122‧‧‧First pole fixing

124‧‧‧Second pole fixings

130‧‧‧Second protection crossbar

132‧‧‧Second crossbar fixture

200‧‧‧Unmanned aerial vehicles

210‧‧‧ Subject

212‧‧‧arms

220‧‧‧propeller

230‧‧‧protective frame

232‧‧‧Support rod

Claims (22)

The utility model relates to a combined protection device for an unmanned aerial vehicle, wherein the unmanned aerial vehicle comprises a main body and a plurality of propellers, and each of the propellers has a protective frame and correspondingly disposed on one of the arms of the main body, and the combined protection device is The first protection crossbar of the plurality of linear structures is detachably and includes: the first protection crossbar connection is combined between two adjacent protection frames, and each of the two ends of the protection frame is connected to the one a first protection crossbar, the number of the first protection crossbars being equal to the number of the propellers; at least two protection ejector pins, wherein each of the protection ejector pins is combined with two opposite protection frames to form a protection top a plurality of first crossbar fixing members for fixing the first protection crossbars to the protection frames; and a plurality of first ejector fixing members for fixing the protection ejector pins to the protection frames on. The combined protection device for an unmanned aerial vehicle according to claim 1, further comprising: a plurality of second protection rails, wherein each of the second protection rails is combined with two adjacent protection poles And a plurality of second crossbar fixing members for fixing the second protection rails to the protection poles. The combined protection device for an unmanned aerial vehicle according to claim 2, further comprising: a second ram fixing member, the top of the protection top frame is disposed to fix the protection ejector pins. The combined protection device for an unmanned aerial vehicle according to claim 2, wherein the first protection rails, the second protection rails, and the protection poles have a flexible material. The combined protection device for an unmanned aerial vehicle according to claim 2, wherein the first protection rails, the second protection rails, and the protection poles are solid or hollow long cylinders. , or a solid or hollow rectangular cylinder. The combined protection device for an unmanned aerial vehicle according to the third aspect of the invention, wherein the first crossbar fixing member, the second crossbar fixing members, the first plunger fixing members, and the first The two ejector fixing members are respectively a set of rings, and wherein the ferrules may have an elastic material or a rigid material. The combined protection device for an unmanned aerial vehicle according to claim 3, wherein the first protection rails, the second protection rails, the protection poles, and the first rails are fixed At least one of the second crossbar fixing member, the first ram fixing member and the second ram fixing member is made of carbon fiber material, plastic material or thin wall metal, wherein the thin wall metal It is made of stainless steel, aluminum or titanium alloy. The combined protection device for an unmanned aerial vehicle according to claim 1, wherein when the number of the propellers is four, the length of each of the protection rams is a diagonal length of the main body. 1.2 to 2 times. The combined protection device for an unmanned aerial vehicle according to claim 1, wherein when the number of the propellers is at least six, the length of each of the protection rams is a diagonal length of the main body. 1.1 to 2 times. The combined protection device for an unmanned aerial vehicle according to claim 1, wherein each of the protection rams has a 外观-shaped appearance. The combined protection device for an unmanned aerial vehicle according to claim 3, wherein the second plunger fixing member is a porous sleeve, and each of the protection plungers comprises a two-child protection plunger for The corresponding sleeve is sleeved in the porous kit. The utility model relates to a combined protection device for an unmanned aerial vehicle, wherein the unmanned aerial vehicle comprises a main body and a plurality of propellers, and each of the propellers has a protective frame and correspondingly disposed on one of the arms of the main body, and the combined protection device is The first protection crossbar of the plurality of linear structures is detachably and includes: the first protection crossbar connection is combined between two adjacent protection frames, and each of the two ends of the protection frame is connected to the one a first protection crossbar, the number of the first protection crossbars being equal to the number of the propellers; at least two protection ejector pins, wherein each of the protection ejector pins is combined with two opposite protection frames to form a protection top frame And each of the protection ejector pins includes a second sub-protection ram; a second ram support member is disposed on the top of the protection top frame for fixing the protection rams; and a receiving unit comprising: Pulling the main rod; and a plurality of support rods; wherein the pull main rod is disposed in the second rod fixing member, and one end of the tension main rod is pivotally connected to each of the supports One end of the sub-rod, The other end of each of the support rods is pivotally connected to one of the sub-protecting ejector pins; and the plurality of first cross-bar fixing members are configured to fix the first protection cross-bars to the protective frames And a plurality of first ejector fixing members for fixing the protection ejector pins to the protection frames. The combined protection device for an unmanned aerial vehicle according to claim 12, wherein when the user pulls the pull main rod, the support rods are interlocked with the pull main rod, and then the corresponding support Open the sub-protection ejector pins. The combined protection device for an unmanned aerial vehicle according to claim 12, wherein when the user pushes the pull main rod, the support rods are interlocked with the pull main rod, and the corresponding These sub-protection ejector pins are combined. The combined protection device for an unmanned aerial vehicle according to claim 12, wherein the first protection rails, the protection poles, the child protection poles, the tension main poles, the At least one of the support rod, the first cross rod fixing member and the first top rod fixing members are made of carbon fiber material, plastic material or thin wall metal, wherein the thin wall metal is stainless steel, aluminum or titanium alloy. A combined protection device for an unmanned aerial vehicle, wherein the UAV includes a main body and a plurality of propellers, and the combined protection device is detachable and includes: a plurality of linear protection first protection crossbars, in sequence Cross-connecting to the main body, wherein the number of the first protection crossbars is equal to the number of the propellers; a plurality of first protection crossbar fixing members for fixing the first protection crossbars on the main body; a protection frame, wherein each of the two ends of the protection frame is connected to the first protection crossbar; and a plurality of protection frame fixing members are used for fixing each of the protection frames at the ends of the corresponding first protection crossbars point. The combined protection device for an unmanned aerial vehicle according to claim 16, further comprising: at least two protection ejector pins, wherein each of the protection ejector pins is combined with two opposite protection frames to form a protection a top frame; a plurality of first ram fixing members for fixing the protection ejector pins to the protection frames. The combined protection device for an unmanned aerial vehicle according to claim 17, further comprising: a second ram fixing member, the top of the protection top frame is disposed to fix the protection ejector pins. The combined protection device for an unmanned aerial vehicle according to claim 18, wherein the first protection crossbars, the protection frames and the protection rams have a flexible material. The combined protection device for an unmanned aerial vehicle according to claim 19, wherein the first protection crossbars, the protection frames and the protection ejector pins are solid or hollow long cylinders, or Solid or hollow rectangular cylinder. The combined protection device for an unmanned aerial vehicle according to claim 18, wherein the first crossbar fixing member, the protective frame fixing members and the first plunger fixing members are respectively a set of rings And wherein the collar has an elastic material or a rigid material. The combined protection device for an unmanned aerial vehicle according to claim 18, wherein the first protection rails, the protection frames, the protection poles, the first rail fixtures, the At least one of the protective frame fixing member and the first ram fixing members is made of a carbon fiber material, a plastic material or a thin-walled metal, wherein the thin-walled metal is stainless steel, aluminum or titanium alloy.