Unmanned aerial vehicle with collision protection function and protection method thereof

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle with a collision protection function and a protection method thereof.The unmanned aerial vehicle comprises an unmanned aerial vehicle body, a machine base is fixedly installed at the bottom end of the unmanned aerial vehicle body, an oil storage tank is fixedly installed at the bottom end of the machine base, and an adjusting assembly is embedded in the middle of the unmanned aerial vehicle body through a locking sleeve; the top end of the machine base fixedly communicates with a three-way valve, an oil pump is arranged in the machine base, and the left end and the right end of the three-way valve fixedly communicate with oil conveying pipes. According to the unmanned aerial vehicle disclosed by the invention, through the matching effect between the adjusting assembly and the linkage assembly, when the unmanned aerial vehicle body is about to collide, a plurality of side edge rubber plates can be automatically unfolded through driving of hydraulic oil, and the side edge rubber plates are used for replacing the side edges of the unmanned aerial vehicle body for collision; the problem that the side edge of the unmanned aerial vehicle body is easily damaged when a traditional device flies at a low altitude and encounters an obstacle is solved, the loss of low-altitude collision is reduced, and the low-altitude flight safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a UAV with a collision protection function and a protection method thereof. Background Art

[0002] A drone, or unmanned aerial vehicle, is an unmanned aircraft controlled by a radio remote control and its own programmable controller, or operated completely or intermittently autonomously by an onboard computer. Drones typically operate in conjunction with a camera mounted on their undercarriage. When the drone takes off, the camera can remotely transmit images, enabling aerial photography.

[0003] Conventional drones take off mainly through propellers. At low altitudes, there are certain obstacles. Once remote control fails or an erroneous operation occurs, the drone will approach the low-altitude obstacle. At this time, the exposed parts of the drone may come into contact with the obstacle, causing damage to the side of the drone.

[0004] At the same time, when the control of the drone fails or the battery is exhausted, the drone may fall directly due to the loss of power. At this time, the bottom of the drone will make hard contact with the ground. At this time, the landing gear cannot withstand the high pressure, causing damage to the bottom of the drone, which urgently needs improvement. Summary of the Invention

[0005] The object of the present invention is to provide a UAV with collision protection function and a protection method thereof, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drone with collision protection function, comprising a drone body, a base fixedly installed at the bottom end of the drone body, an oil storage tank fixedly installed at the bottom end of the base, an adjustment assembly embedded in the middle of the drone body through a locking sleeve, a three-way valve fixedly connected to the top of the base, an oil pump built into the base, the left and right ends of the three-way valve fixedly connected to an oil pipe, the other end of the oil pipe is connected to the adjustment assembly, an extension frame fixedly installed on the front and rear sides of the oil storage tank, a transverse guide rail fixedly installed on the end of the extension frame away from the oil storage tank, a longitudinal guide rail fixedly installed on the front side of the transverse guide rail, a linkage assembly fixedly installed on the front and rear ends of the adjustment assembly, the linkage assembly and the transverse guide rail movably engaged, the bottom protection assembly movably engaged inside the longitudinal guide rail, the left and right ends of the bottom protection assembly are connected to the left and right ends of the linkage assembly.

[0007] Before use, you need to ensure that the inside of the base is filled with hydraulic oil, and connect the oil pump inside the base to the power supply. At the same time, you need to restore the linkage assembly and bottom protection assembly to their initial state. At this time, the device is in normal flight state.

[0008] As a further technical solution of the present invention, the adjusting assembly includes an adjusting tube, the outer side of the adjusting tube is connected to the machine base through a locking sleeve, and the left and right ends of the middle part of the adjusting tube are fixedly connected to an oil valve, and the oil valve is connected to the oil pipe.

[0009] As a further technical solution of the present invention, the left and right ends of the adjusting tube are movably connected with piston plates, and the relatively far ends of the two piston plates are fixedly installed with piston rods. The outer sides of the piston rods are movably connected with limit springs, and the left and right ends of the limit springs are connected to one end of the inner cavity of the adjusting tube and one end of the piston plate. The other end of the piston rod passes through one side of the adjusting tube and is connected to the linkage assembly.

[0010] When the drone is flying at low altitude and a collision risk is detected on the side, the oil pump inside the base can be turned on to output hydraulic oil into the inside of the three-way valve and at the same time enter the inside of the piston plate through the two oil pipes on the side of the three-way valve. At this time, the hydraulic oil then enters the inside of the regulating tube and exerts a force on the two piston plates. At this time, the two piston plates move away from each other and drive the two piston rods away from each other. At this time, the limit spring can be compressed and exert a force on the linkage assembly.

[0011] As a further technical solution of the present invention, the linkage assembly includes a linkage plate, one end of the linkage plate is connected to the piston rod, and the left and right ends of the linkage plate away from the piston rod are fixedly installed with a first fixed seat, and the end of the first fixed seat away from the linkage plate is movably connected to the first connecting rod through a rotating shaft.

[0012] As a further technical solution of the present invention, the end of the first connecting rod away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft, and the end of the second fixed seat away from the first connecting rod is fixedly connected to a transverse guide block, and the transverse guide block is movably engaged with the transverse guide rail, and the relatively close ends of the two transverse guide blocks are connected to the bottom protection assembly.

[0013] As a further technical solution of the present invention, the relatively distant ends of the two lateral guide blocks are fixedly installed with extension rods, and the relatively distant ends of the two extension rods pass through one side of the lateral guide rail and are fixedly connected with side rubber plates.

[0014] When the two piston rods move away from each other, the two linkage plates also move away from each other, and at the same time, a force is applied to the first connecting rod, and the two first connecting rods are deflected in the direction away from the middle. At this time, a thrust can be applied to the lateral guide block. At this time, the two lateral guide blocks can be displaced relative to the lateral guide rail, that is, the two lateral guide blocks are driven away from each other, and a thrust is applied to the two extension rods. At this time, the two extension rods and the side rubber plates can move away from each other until the side rubber plates are displaced to the extreme position. At this time, the side rubber plates can replace the sides of the drone body to collide, completing the side protection process.

[0015] By utilizing the coordination between the adjustment component and the linkage component, when the drone body is about to collide, the hydraulic oil can be used to drive multiple side rubber plates to automatically deploy, and the side rubber plates can be used to replace the sides of the drone body to collide, avoiding the problem that traditional devices may cause damage to the sides of the drone body when flying at low altitude and encountering obstacles, reducing the losses caused by low-altitude collisions and improving the safety of low-altitude flight.

[0016] As a further technical solution of the present invention, the bottom protection assembly includes a longitudinal guide block, which is movably connected to the longitudinal guide rail. The longitudinal guide block moves up and down relative to the longitudinal guide rail. The left and right ends of the longitudinal guide block are fixedly connected to a third fixed seat, and the end of the third fixed seat away from the longitudinal guide block is movably connected to a second connecting rod through a rotating shaft.

[0017] As a further technical solution of the present invention, one end of the second connecting rod away from the third fixing seat is movably connected to the fourth fixing seat via a rotating shaft, and one end of the fourth fixing seat is connected to the transverse guide block.

[0018] As a further technical solution of the present invention, a mounting rod is fixedly connected to the middle of the bottom end of the longitudinal guide block, and the bottom end of the mounting rod passes through the bottom end of the longitudinal guide rail and is fixedly connected to the bottom rubber plate.

[0019] When the two lateral guide blocks move away from each other, the distance between the two lateral guide blocks increases. At this time, a force can be applied to the two second connecting rods, that is, the two second connecting rods deflect downward, and at the same time, a pulling force is applied to the longitudinal guide block. At this time, the longitudinal guide block is displaced relative to the longitudinal guide rail, and the mounting rod and the bottom rubber plate are driven to move downward until the bottom rubber plate moves to the lowest point, thereby replacing the bottom end of the drone body for collision.

[0020] By utilizing the linkage process of the linkage component and coordinating the interaction between it and the bottom protection component, the active protection of the side rubber plate can be achieved, and the automatic lowering of the bottom rubber plate can be achieved, so that it can replace the bottom end of the drone body for protection. The whole process can be completed automatically, which can avoid the drone body from being subjected to greater pressure during forced landing, reduce losses during forced landing, and improve safety.

[0021] When the side rubber plates are moved to the outermost side and the bottom rubber plate is moved to the bottom, both the side and bottom sides of the device are protected. When the drone falls due to a collision, the side rubber plates and the bottom rubber plates can contact the ground, causing the device to roll between the ground until the drone stops completely, thus completing the damage to the drone body caused by the crash.

[0022] By utilizing the active protection process of the side rubber plates and the bottom rubber plates, the device can protect the surrounding areas of the drone body together with the side rubber plates and the bottom rubber plates when it falls accidentally, reducing damage to the drone body when it falls, further improving the protection of the drone body from damage caused by the device falling due to collision, and further improving the safety of the device when it falls.

[0023] A method for protecting a drone with a collision protection function comprises the following steps:

[0024] S1: When the drone is flying at low altitude and encounters an obstacle nearby, the oil pump inside the base can be turned on to direct hydraulic oil into the three-way valve. The oil can then be directed into the regulating tube through the oil pipes on both ends of the three-way valve, exerting pressure on the two piston plates, driving the two piston plates and the piston rod apart. This compresses the limit spring, pushing the two linkage plates apart.

[0025] S2: When the two linkage plates move away from each other, the two first connecting rods deflect in a direction away from the middle portion and apply thrust to the two lateral guide blocks, driving the two lateral guide blocks away from each other, and finally driving the two extension rods away from each other;

[0026] S3: When the distance between the two piston plates is at its maximum, the distance between the two extension rods is also at its maximum, which drives the two side rubber plates away from each other until they move to the side of the drone body, replacing the side of the drone body to collide, completing the protection process;

[0027] S4: At the same time, when the two lateral guide blocks move away from each other, the two second connecting rods deflect downward, pulling the longitudinal guide blocks downward, and finally driving the mounting rod and the bottom rubber plate downward. The bottom rubber plate replaces the landing gear collision, completing the protection process of the bottom end of the drone body.

[0028] The beneficial effects of the present invention are as follows:

[0029] (1) The present invention utilizes the cooperation between the adjustment component and the linkage component, so that when the UAV body is about to collide, the hydraulic oil can be driven to realize the automatic expansion of multiple side rubber plates, and the side rubber plates are used to replace the side of the UAV body to collide, thereby avoiding the problem that the traditional device is likely to cause damage to the side of the UAV body when flying at low altitude and encountering obstacles, reducing the loss of low-altitude collisions and improving the safety of low-altitude flight.

[0030] (2) The present invention utilizes the linkage process of the linkage component to coordinate the interaction between it and the bottom protection component to achieve active protection of the side rubber plate. At the same time, it can also achieve the automatic descent of the bottom rubber plate, so that it replaces the bottom end of the drone body for protection. The whole process can be completed automatically, which can prevent the drone body from being subjected to greater pressure during forced landing, reduce losses during forced landing, and improve safety.

[0031] (3) The present invention utilizes the active protection process of the side rubber plates and the bottom rubber plates, so that when the device accidentally falls, the side rubber plates and the bottom rubber plates can protect the surrounding areas of the drone body, reduce the damage to the drone body when it falls, further improve the damage to the drone body caused by the fall of the device due to collision, and further improve the safety of the device when it falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a top schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a bottom schematic diagram of the overall structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the hidden drone body structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the coordination between the drone body, the base, and the adjustment assembly structure of the present invention;

[0036] Figure 5 It is a cross-sectional schematic diagram of the internal structure of the oil storage tank and the three-way valve of the present invention;

[0037] Figure 6 is a schematic cross-sectional view of the internal structure of the regulating assembly of the present invention;

[0038] Figure 7 Schematic diagram of the coordination of the transverse guide rail, linkage assembly and side rubber plate structure of the present invention;

[0039] Figure 8 This is an exploded schematic diagram of the transverse guide rail and linkage assembly structure of the present invention;

[0040] Figure 9 is a separate schematic diagram of the linkage assembly structure of the present invention;

[0041] Figure 10 It is a schematic diagram of the exploded structure of the bottom protection assembly and the longitudinal guide rail structure of the present invention.

[0042] In the figure: 1. UAV body; 2. Machine base; 3. Oil storage tank; 4. Three-way valve; 5. Oil pipeline; 6. Adjustment assembly; 601. Adjustment tube; 602. Piston plate; 603. Piston rod; 604. Limit spring; 605. Oil delivery valve; 7. Extension frame; 8. Transverse guide rail; 9. Longitudinal guide rail; 10. Linkage assembly; 101. Linkage plate; 102. First fixed seat; 103. Second fixed seat; 104. Transverse guide block; 105. First connecting rod; 11. Extension rod; 12. Side rubber plate; 13. Bottom protection assembly; 131. Longitudinal guide block; 132. Mounting rod; 133. Bottom rubber plate; 134. Third fixed seat; 135. Fourth fixed seat; 136. Second connecting rod. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] like Figures 1 to 10 As shown, in an embodiment of the present invention, a drone with a collision protection function includes a drone body 1, a base 2 is fixedly installed at the bottom end of the drone body 1, an oil tank 3 is fixedly installed at the bottom end of the base 2, an adjustment component 6 is inlaid and installed in the middle of the drone body 1 through a locking sleeve, a three-way valve 4 is fixedly connected to the top of the base 2, an oil pump is built into the base 2, the left and right ends of the three-way valve 4 are fixedly connected to an oil pipe 5, the other end of the oil pipe 5 is connected to the adjustment component 6, and an extension frame 7 is fixedly installed on the front and rear sides of the oil tank 3, and a transverse guide rail 8 is fixedly installed on the end of the extension frame 7 away from the oil tank 3, and a longitudinal guide rail 9 is fixedly installed on the front of the transverse guide rail 8, and a linkage component 10 is fixedly installed on the front and rear ends of the adjustment component 6, and the linkage component 10 is movably connected to the transverse guide rail 8, and a bottom protection component 13 is movably connected inside the longitudinal guide rail 9, and the left and right ends of the bottom protection component 13 are connected to the left and right ends of the linkage component 10.

[0045] Before use, it is necessary to ensure that the interior of the base 2 is filled with hydraulic oil, and connect the oil pump inside the base 2 to the power supply. At the same time, the linkage assembly 10 and the bottom protection assembly 13 need to be restored to their initial state. At this time, the device is in normal flight state.

[0046] like Figure 3 and Figure 4 as well as Figure 6 As shown, the adjusting component 6 includes an adjusting tube 601, the outer side of the adjusting tube 601 is connected to the machine base 2 through a locking sleeve, the left and right ends of the middle part of the adjusting tube 601 are fixedly connected with an oil delivery valve 605, the oil delivery valve 605 is connected to the oil delivery pipe 5, the left and right ends of the adjusting tube 601 are movably connected with a piston plate 602, the relatively far ends of the two piston plates 602 are fixedly installed with a piston rod 603, the outer side of the piston rod 603 is movably connected with a limit spring 604, the left and right ends of the limit spring 604 are connected to one end of the inner cavity of the adjusting tube 601 and one end of the piston plate 602, the other end of the piston rod 603 passes through one side of the adjusting tube 601 and is connected to the linkage component 10.

[0047] When the drone body 1 is flying at a low altitude and a collision risk is detected on the side, the oil pump inside the base 2 can be turned on to output hydraulic oil into the inside of the three-way valve 4, and at the same time enter the inside of the piston plate 602 through the two oil pipes 5 on the side of the three-way valve 4. At this time, the hydraulic oil then enters the inside of the regulating tube 601 and applies a force to the two piston plates 602. At this time, the two piston plates 602 then move away from each other, and at the same time drive the two piston rods 603 away from each other. At this time, the limit spring 604 can be compressed and apply a force to the linkage assembly 10.

[0048] like Figure 3 and Figure 7 as well as Figure 8 and Figure 9 As shown, the linkage assembly 10 includes a linkage plate 101, one end of the linkage plate 101 is connected to the piston rod 603, and the left and right ends of the linkage plate 101 away from the piston rod 603 are fixedly installed with a first fixed seat 102, and the end of the first fixed seat 102 away from the linkage plate 101 is movably connected to the first connecting rod 105 through a rotating shaft, and the end of the first connecting rod 105 away from the first fixed seat 102 is movably connected to the second fixed seat 103 through a rotating shaft, and the end of the second fixed seat 103 away from the first connecting rod 105 is fixedly connected to a transverse guide block 104, which is movably engaged with the transverse guide rail 8, and the relatively close ends of the two transverse guide blocks 104 are connected to the bottom protection assembly 13, and the relatively far ends of the two transverse guide blocks 104 are fixedly installed with an extension rod 11, and the relatively far ends of the two extension rods 11 pass through one side of the transverse guide rail 8 and are fixedly connected to the side rubber plate 12.

[0049] Embodiment: When the two piston rods 603 move away from each other, the two linkage plates 101 also move away from each other, and at the same time, a force is applied to the first connecting rod 105, and the two first connecting rods 105 are deflected in the direction away from the middle. At this time, a thrust can be applied to the lateral guide block 104, and the two lateral guide blocks 104 can be displaced relative to the lateral guide rail 8, that is, the two lateral guide blocks 104 are driven away from each other, and a thrust is applied to the two extension rods 11. At this time, the two extension rods 11 and the side rubber plates 12 can move away from each other until the side rubber plates 12 are displaced to the extreme position. At this time, the side rubber plates 12 can replace the side of the drone body 1 to collide, completing the side protection process.

[0050] By utilizing the cooperation between the adjustment component 6 and the linkage component 10, when the drone body 1 is about to collide, the multiple side rubber plates 12 can be automatically deployed by driving the hydraulic oil, and the side rubber plates 12 can replace the side of the drone body 1 to collide, avoiding the problem that the traditional device is likely to cause damage to the side of the drone body 1 when flying at low altitude and encountering obstacles, reducing the losses caused by low-altitude collisions and improving the safety of low-altitude flight.

[0051] like Figure 3 and Figure 7 as well as Figure 10 As shown, the bottom protection assembly 13 includes a longitudinal guide block 131, which is movably connected to the longitudinal guide rail 9, and the longitudinal guide block 131 moves up and down relative to the longitudinal guide rail 9. The left and right ends of the longitudinal guide block 131 are fixedly connected to the third fixing seat 134, and the end of the third fixing seat 134 away from the longitudinal guide block 131 is movably connected to the second connecting rod 136 through a rotating shaft, and the end of the second connecting rod 136 away from the third fixing seat 134 is movably connected to the fourth fixing seat 135 through a rotating shaft, and one end of the fourth fixing seat 135 is connected to the transverse guide block 104, and the middle part of the bottom end of the longitudinal guide block 131 is fixedly connected to the mounting rod 132, and the bottom end of the mounting rod 132 passes through the bottom end of the longitudinal guide rail 9 and is fixedly connected to the bottom rubber plate 133.

[0052] Embodiment: When the two lateral guide blocks 104 move away from each other, the distance between the two lateral guide blocks 104 increases. At this time, a force can be applied to the two second connecting rods 136, that is, the two second connecting rods 136 are deflected downward, and at the same time, a pulling force is applied to the longitudinal guide block 131. At this time, the longitudinal guide block 131 is displaced relative to the longitudinal guide rail 9, and the mounting rod 132 and the bottom rubber plate 133 are driven to move downward until the bottom rubber plate 133 moves to the lowest point, thereby replacing the bottom end of the drone body 1 for collision.

[0053] By utilizing the linkage process of the linkage component 10 and coordinating the interaction between it and the bottom protection component 13, the active protection of the side rubber plate 12 is achieved, and the automatic lowering of the bottom rubber plate 133 can be achieved, so that it replaces the bottom end of the drone body 1 for protection. The entire process can be completed automatically, which can prevent the drone body 1 from being subjected to greater pressure during forced landing, reduce losses during forced landing, and improve safety.

[0054] When the side rubber plates 12 are moved to the outermost side and the bottom rubber plate 133 is moved to the bottom, both the side and bottom sides of the device are protected. When the drone body 1 falls due to a collision, the side rubber plates 12 and the bottom rubber plate 133 can contact the ground, causing the device to roll between the ground until the drone body 1 comes to a complete stop, thereby completing the damage caused by the crash of the drone body 1.

[0055] By utilizing the active protection process of the side rubber plates 12 and the bottom rubber plates 133, when the device accidentally falls, the side rubber plates 12 and the bottom rubber plates 133 can protect the surrounding areas of the drone body 1, thereby reducing damage to the drone body 1 when it falls, further improving the protection of the drone body 1 from damage caused by the device falling due to collision, and further improving the safety of the device when it falls.

[0056] A method for protecting a drone with a collision protection function comprises the following steps:

[0057] S1: When the drone body 1 is flying at low altitude and an obstacle appears nearby, the oil pump inside the base 2 can be turned on to introduce hydraulic oil into the interior of the three-way valve 4. At this time, the oil can be introduced into the interior of the regulating pipe 601 through the oil pipes 5 at the left and right ends of the three-way valve 4, and pressure is applied to the two piston plates 602, driving the two piston plates 602 and the piston rod 603 to move relatively apart. At this time, the limit spring 604 can be compressed and push the two linkage plates 101 away from each other;

[0058] S2: When the two linkage plates 101 move away from each other, the two first connecting rods 105 deflect in a direction away from the middle and apply thrust to the two lateral guide blocks 104, driving the two lateral guide blocks 104 away from each other, and finally driving the two extension rods 11 away from each other;

[0059] S3: When the distance between the two piston plates 602 is at its maximum, the distance between the two extension rods 11 is also at its maximum, which drives the two side rubber plates 12 away from each other until they move to one side of the drone body 1, replacing the side of the drone body 1 for collision, thus completing the protection process;

[0060] S4: At the same time, when the two lateral guide blocks 104 move away from each other, the two second connecting rods 136 deflect downward, pulling the longitudinal guide block 131 downward, and finally driving the mounting rod 132 and the bottom rubber plate 133 downward. The bottom rubber plate 133 replaces the landing gear collision, completing the protection process of the bottom end of the drone body 1.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A UAV with collision protection function, comprising a UAV body (1), characterized in that: The bottom end of the UAV body (1) is fixedly mounted with a base (2), the bottom end of the base (2) is fixedly mounted with an oil storage tank (3), the middle part of the UAV body (1) is embedded with an adjustment component (6) through a locking sleeve, the top end of the base (2) is fixedly connected with a three-way valve (4), an oil pump is built into the base (2), the left and right ends of the three-way valve (4) are fixedly connected with an oil delivery pipe (5), the other end of the oil delivery pipe (5) is connected to the adjustment component (6), and the front and rear sides of the oil storage tank (3) are fixedly mounted with a three-way valve (4). An extension frame (7) is provided, and a transverse guide rail (8) is fixedly installed on one end of the extension frame (7) away from the oil storage tank (3), and longitudinal guide rails (9) are fixedly installed on the front of the transverse guide rail (8). Linkage components (10) are fixedly installed on both the front and rear ends of the adjustment component (6), and the linkage component (10) is movably connected to the transverse guide rail (8). The interior of the longitudinal guide rail (9) is movably connected to a bottom protection component (13), and the left and right ends of the bottom protection component (13) are connected to the left and right ends of the linkage component (10).

2. The UAV with collision protection function according to claim 1, characterized in that: The regulating assembly (6) comprises a regulating tube (601), the outer side of the regulating tube (601) being connected to the machine base (2) via a locking sleeve, and the left and right ends of the middle portion of the regulating tube (601) being fixedly connected to an oil delivery valve (605), and the oil delivery valve (605) is connected to the oil delivery pipe (5).

3. The UAV with collision protection function according to claim 2, characterized in that: The left and right ends of the regulating tube (601) are movably sleeved with piston plates (602), and the ends of the two piston plates (602) that are relatively far away are fixedly installed with piston rods (603). The outer side surfaces of the piston rods (603) are movably sleeved with limit springs (604), and the left and right ends of the limit springs (604) are connected to one end of the inner cavity of the regulating tube (601) and one end of the piston plate (602). The other end of the piston rod (603) passes through one side of the regulating tube (601) and is connected to the linkage assembly (10).

4. The UAV with collision protection function according to claim 3, characterized in that: The linkage assembly (10) includes a linkage plate (101), one end of the linkage plate (101) is connected to the piston rod (603), and the left and right ends of the linkage plate (101) away from the piston rod (603) are fixedly installed with first fixed seats (102), and the end of the first fixed seat (102) away from the linkage plate (101) is movably connected to the first connecting rod (105) through a rotating shaft.

5. The UAV with collision protection function according to claim 4, characterized in that: One end of the first connecting rod (105) away from the first fixed seat (102) is movably connected to the second fixed seat (103) via a rotating shaft, and one end of the second fixed seat (103) away from the first connecting rod (105) is fixedly connected to a transverse guide block (104), and the transverse guide block (104) is movably connected to the transverse guide rail (8), and the relatively close ends of the two transverse guide blocks (104) are connected to the bottom protection component (13).

6. The UAV with collision protection function according to claim 5, characterized in that: An extension rod (11) is fixedly mounted on one end of the two transverse guide blocks (104) that is relatively far away from each other. The ends of the two extension rods (11) that are relatively far away from each other pass through one side of the transverse guide rail (8) and are fixedly connected to a side rubber plate (12).

7. The UAV with collision protection function according to claim 6, characterized in that: The bottom protection assembly (13) includes a longitudinal guide block (131), the longitudinal guide block (131) is movably connected to the longitudinal guide rail (9), the longitudinal guide block (131) moves up and down relative to the longitudinal guide rail (9), the left and right ends of the longitudinal guide block (131) are fixedly connected to a third fixed seat (134), and the end of the third fixed seat (134) away from the longitudinal guide block (131) is movably connected to a second connecting rod (136) via a rotating shaft.

8. The UAV with collision protection function according to claim 7, characterized in that: One end of the second connecting rod (136) away from the third fixing seat (134) is movably connected to the fourth fixing seat (135) via a rotating shaft, and one end of the fourth fixing seat (135) is connected to the transverse guide block (104).

9. The UAV with collision protection function according to claim 8, characterized in that: The middle of the bottom end of the longitudinal guide block (131) is fixedly connected to a mounting rod (132), and the bottom end of the mounting rod (132) passes through the bottom end of the longitudinal guide rail (9) and is fixedly connected to a bottom rubber plate (133).

10. The method for protecting a UAV with collision protection according to claim 9, characterized in that: The following steps are involved: S1: When the drone body (1) is flying at a low altitude and an obstacle appears nearby, the oil pump inside the base (2) can be turned on and the hydraulic oil can be introduced into the inside of the three-way valve (4). At this time, the oil can be introduced into the inside of the regulating tube (601) through the oil pipes (5) at the left and right ends of the three-way valve (4), and pressure is applied to the two piston plates (602), driving the two piston plates (602) and the piston rod (603) to move away from each other. At this time, the limit spring (604) can be compressed and push the two linkage plates (101) away from each other; S2: When the two linkage plates (101) move away from each other, the two first connecting rods (105) can deflect in a direction away from the middle, and apply thrust to the two transverse guide blocks (104), driving the two transverse guide blocks (104) to move away from each other, and finally driving the two extension rods (11) to move away from each other; S3: When the distance between the two piston plates (602) is at its maximum, the distance between the two extension rods (11) is at its maximum, and the two side rubber plates (12) can be driven to move away from each other until they are displaced to one side of the drone body (1), replacing the side of the drone body (1) for collision, thus completing the protection process; S4: When the two lateral guide blocks (104) move away from each other, the two second connecting rods (136) deflect downward and pull the longitudinal guide block (131) to move downward, and finally drive the mounting rod (132) and the bottom rubber plate (133) to move downward, and the bottom rubber plate (133) replaces the landing gear collision to complete the protection process of the bottom end of the drone body (1).

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