Safety protection device for unmanned aerial vehicle

Abstract

The present invention discloses a safety protection device for an unmanned aerial vehicle, comprising an unmanned aerial vehicle body and a support platform arranged at the bottom of the unmanned aerial vehicle body, connecting rods are fixedly installed on both sides of the bottom of the support platform, the bottom ends of the connecting rods are elastically connected with sliding rods, a limiting assembly is arranged between the two connecting rods, the limiting assembly cooperates with the sliding rod, and both ends of the limiting assembly cooperate with adjustment assemblies; through the cooperation of the adjustment assembly and the limiting assembly, when the unmanned aerial vehicle body lands on a more complex terrain, the top rod that first contacts the ground can drive the limiting rod to move to this side, thereby allowing the limiting rod to release the limitation of the sliding rod on the other side, and then the sliding rod can be used to lift up the inclined side of the unmanned aerial vehicle body, so that the unmanned aerial vehicle body is gradually in a horizontal state, and in this process, the sliding rod can be locked by using the cooperation of the card block and the stop block.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a safety protection device for unmanned aerial vehicles. Background Art

[0002] Unmanned aerial vehicles, also known as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers.

[0003] Chinese invention patent CN110816863A discloses a safety protection device for alleviating impact force when a drone is landing, comprising a mainframe, a support rod movably connected to the upper part of the mainframe, an arm movably connected to the upper part of the support rod, a connecting plate fixedly connected to the lower part of the mainframe, a bracket movably connected to the lower part of the connecting plate, a landing gear movably connected to the lower part of the bracket, a wheel movably connected to the lower part of the landing gear, and a connecting rod movably connected to the inner part of the bracket. The safety protection device for alleviating impact force when a drone is landing compresses a buffer spring through a movable block, so that the longitudinal impact force when the drone is landing can be converted into a lateral impact force, so that the impact force when the drone is landing can be reduced, the drone can be prevented from being damaged, and time and money can be wasted on repairs, which can save repair costs, improve the work efficiency of the drone, and save time.

[0004] The above-mentioned device protects the UAV through structures such as limit rods and buffer springs, so that it can land stably. However, when targeting some areas with more complex terrain, due to the presence of grooves on the ground, the landing gear of the above-mentioned UAV cannot play a good balancing role when landing, which causes the UAV to tilt or even fall over. Therefore, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide a safety protection device for a drone to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a safety protection device for an unmanned aerial vehicle (UAV) to solve the problem that the existing device proposed in the above-mentioned background technology protects the UAV through structures such as a limit rod and a buffer spring so that it can land stably, but when targeting some areas with more complex terrain, due to the presence of grooves on the ground, the landing gear of the above-mentioned UAV cannot play a good balancing role when landing, which in turn causes the UAV to tilt or even fall over.

[0007] Based on the above ideas, the present invention provides the following technical solutions: comprising a drone body and a support platform arranged at the bottom of the drone body, connecting rods are fixedly installed on both sides of the bottom of the support platform, a sliding rod is elastically connected to the bottom end of the connecting rod, a limit assembly is arranged between the two connecting rods, the limit assembly cooperates with the sliding rod, and both ends of the limit assembly cooperate with adjustment assemblies;

[0008] When the adjustment component on one side touches the ground first, it can drive the limit component to slide in the direction of the adjustment component on this side, so that the limit component is disconnected from the sliding rod that touches the ground later, and the sliding rod that is separated from the limit component pops outward and supports the drone body.

[0009] As a further solution of the present invention: a circular hole is opened on the connecting rod, a clamping ring is provided on the outer fixed sleeve of the sliding rod, and the clamping ring is slidably set inside the circular hole, the bottom end of the sliding rod passes through the connecting rod and is slidably connected to the connecting rod, a sealing block is fixedly connected to the outer side of the sliding rod, and the sealing block is slidably set in the circular hole, and the outer side of the sliding rod is sleeved with a second spring, and the second spring is set between the sealing block and the end face of the circular hole.

[0010] As a further scheme of the present invention: the limit assembly includes a limit rod arranged between the two connecting rods, the limit rod passes through the connecting rod and is slidably connected to the connecting rod, the limit rod is provided with a penetrating arc groove and a strip groove, the arc groove cooperates with the clamping ring on the outer side of the sliding rod, grooves are provided on the two side walls inside the strip groove, and a baffle is hinged on the side of the groove, the outer side of the limit rod is sleeved with a sliding sleeve, the sliding sleeve is fixedly connected to the support platform through a fixed plate, and a through groove is provided on the top surface of the sliding sleeve, the limit rod is fixedly connected with a protrusion that slidably cooperates with the through groove, the fixed plate is fixedly connected with a guide rod, the guide rod passes through the protrusion and slidably cooperates with it, and the outer side of the guide rod is sleeved with a first spring, the first spring is arranged between the protrusion and the fixed plate, the bottom two sides of the limit rod are fixedly connected with vertical plates, and a second magnet is embedded on the outer side of the vertical plates.

[0011] As a further solution of the present invention: the adjusting assembly includes a sleeve arranged on the inner side of the connecting rod, a support plate is fixedly connected to the inner side surface of the connecting rod, the sleeve passes through the support plate and is rotatably connected thereto, a push rod is slidably arranged on the bottom end of the sleeve, a spiral limiting groove is opened on the inner wall of the sleeve, a limiting block slidingly matched with the limiting groove is fixedly connected to the outer circumferential surface of the push rod, a protrusion is fixedly connected to the inner side surface of the connecting rod, the push rod passes through the protrusion and is slidably connected thereto, a first magnet matching with the second magnet is embedded on the outer circumferential surface of the sleeve, and the first magnet has different magnetic poles on the side opposite to the second magnet.

[0012] As a further solution of the present invention: a connecting block is fixedly connected to the outer side of the connecting rod, and the interior of the connecting block is set as a cavity structure. A notch is provided at one end of the connecting block close to the connecting rod, and a clamping block is elastically connected in the notch. A counterweight block is slidably arranged in the cavity of the connecting block, and a pressure rod is fixedly connected between the counterweight block and the clamping block. A guide groove is provided on the outer side surface of the sealing block, and the end of the clamping block away from the pressure rod is located in the guide groove, and a plurality of blocks matching the clamping block are fixedly arranged on the inner wall of the guide groove, and the side of the clamping block close to the block is set as an inclined surface.

[0013] As a further solution of the present invention: a pull rope is fixedly connected to the top end of the sliding rod, and the other end of the pull rope passes through the connecting rod and is slidably connected thereto.

[0014] As a further solution of the present invention: a motor is fixedly arranged at the bottom of the support platform, an output shaft of the motor is connected to a reel, and one end of the pull rope extends to the outside of the connecting rod and is fixedly connected to the reel.

[0015] As a further solution of the present invention: the outer side surface of the vertical plate is configured as a curved surface and matches with the sleeve.

[0016] As a further solution of the present invention: a positioning groove is provided on the outer circumferential surface of the push rod along its diameter direction, a through hole matching with the push rod is provided on the protrusion, and a positioning block slidably matching with the positioning groove is fixedly connected to the inner wall of the through hole.

[0017] As a further solution of the present invention: a through-going guide hole is provided on the outer side of the connecting rod near the top end.

[0018] Compared with the prior art, the beneficial effect of the present invention is that: this device cooperates with the adjustment component and the limit component, so that when the drone body lands on a more complex terrain, the top rod that first contacts the ground can drive the limit rod to move to this side, thereby allowing the limit rod to release the limit on the sliding rod on the other side, and then the sliding rod can be used to lift up the inclined side of the drone body, so that the drone body is gradually in a horizontal state, and in this process, the sliding rod can be locked by using the cooperation of the card block and the stop block, that is: when the drone body is in a horizontal state, the sliding rod stops popping out, which is beneficial to maintaining the stability of the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3It is a schematic diagram of the connection structure between the limit rod and the sliding sleeve of the present invention;

[0023] Figure 4 It is a schematic diagram of the baffle structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the sleeve and the limiting groove structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the positioning block structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the limit block structure of the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the first magnet and the second magnet of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the slide bar and the pull rope of the present invention;

[0029] Fig.10 The present invention Fig. 9 A schematic diagram of the enlarged structure at point A;

[0030] Fig.11 The present invention Fig. 9 Schematic diagram of the enlarged structure at B.

[0031] In the figure: 1. UAV body; 2. support platform; 3. push rod; 4. sliding sleeve; 5. limit rod; 6. sliding rod; 7. connecting rod; 8. vertical plate; 9. sleeve; 10. support plate; 11. convex block; 12. positioning groove; 13. fixing plate; 14. pull rope; 15. reel; 16. connecting block; 17. first spring; 18. protrusion; 19. strip groove; 20. groove; 21. baffle; 22. arc groove; 23. limit groove; 24. positioning block; 25. limit block; 26. first magnet; 27. second magnet; 28. second spring; 29. ​​sealing block; 30. guide hole; 31. block; 32. clamping block; 33. limit spring; 34. baffle; 35. pressure rod; 36. counterweight; 37. snap ring. DETAILED DESCRIPTION

[0032] like Figure 1-2As shown, a safety protection device for an unmanned aerial vehicle comprises an unmanned aerial vehicle body 1 and a support platform 2 arranged at the bottom of the unmanned aerial vehicle body 1, connecting rods 7 are fixedly installed on both sides of the bottom of the support platform 2, a sliding rod 6 is slidably arranged at the bottom end of the connecting rod 7, and the sliding rod 6 is elastically connected to the connecting rod 7, so that the unmanned aerial vehicle body 1 has a certain buffer when landing, which is beneficial to protecting it. In addition, in order to increase the contact area between the sliding rod 6 and the ground, a supporting leg is fixedly connected to the bottom end of the sliding rod 6, and the supporting leg is arranged vertically to the sliding rod 6, so as to improve the stability of the unmanned aerial vehicle body 1 when landing.

[0033] When dealing with some complex terrains such as gullies, it is difficult to ensure the stability of the drone body 1 during landing through the above structure. In order to prevent it from tipping over during landing, the present solution provides a limit assembly between the two connecting rods 7. The limit assembly cooperates with the slide bar 6, and both ends of the limit assembly are equipped with adjustment assemblies. During actual use, when the adjustment assembly on one side contacts the ground first, it can drive the limit assembly to slide in the direction of the adjustment assembly on this side, thereby disconnecting the limit assembly from the slide bar 6 that contacts the ground at the rear, which is conducive to the slide bar 6 that contacts the ground at the rear to pop outward to maintain the stability of the drone body 1.

[0034] like Figure 2-9 As shown in Figures 11, a circular hole is provided on the connecting rod 7, a snap ring 37 is provided on the outer fixed sleeve of the sliding rod 6, and the snap ring 37 is slidably set inside the circular hole, the bottom end of the sliding rod 6 passes through the connecting rod 7 and is slidably connected thereto, a sealing block 29 is fixedly connected to the outer side of the sliding rod 6, and the sealing block 29 is slidably set in the circular hole, a through guide hole 30 is provided near the top position of the outer side of the connecting rod 7, when the sliding rod 6 and the sealing block 29 on the outer side thereof slide downward together, external gas can enter the circular hole through the guide hole 30, the outer sleeve of the sliding rod 6 is provided with a second spring 28, and the second spring 28 is set between the sealing block 29 and the end face of the circular hole, and this structure can prevent the sliding rod 6 from being quickly ejected under the pressure of the second spring 28;

[0035] The above-mentioned limit assembly includes a limit rod 5 arranged between the two connecting rods 7, the limit rod 5 passes through the connecting rod 7 and is slidably connected thereto, the limit rod 5 is provided with a penetrating arc groove 22 and a strip groove 19, the arc groove 22 cooperates with the snap ring 37 on the outer side of the slide rod 6, and grooves 20 are provided on the two side walls inside the strip groove 19, and a baffle 21 is hinged on the side of the groove 20, and the distance between the baffle 21 and the center of the arc groove 22 is greater than the radius of the snap ring 37. When the baffle 21 rotates to a horizontal position in the direction of the strip groove 19, the baffle 21 contacts the bottom of the groove 20 to prevent the baffle 21 from continuing to rotate. Through this structure, when the snap ring 37 moves upward relative to the baffle 21, it can drive the baffle 21 to rotate upward, while the snap ring 37 cannot move downward relative to the baffle 21, thereby realizing the unidirectional movement of the snap ring 37 relative to the baffle 21.

[0036] The outer side of the limit rod 5 is sleeved with a sliding sleeve 4, which is fixedly connected to the support platform 2 through a fixing plate 13, and a through groove is opened on the top surface of the sliding sleeve 4, and a protrusion 18 that slides and cooperates with the through groove is fixedly connected to the limit rod 5. The number of the fixing plates 13 is set to two and is located on both sides of the protrusion 18. A guide rod is fixedly connected between the two fixing plates 13, and the guide rod passes through the protrusion 18 and slides with it, and a first spring 17 is sleeved on the outer side of the guide rod, and the first spring 17 is arranged between the protrusion 18 and the fixing plate 13. In the initial state, the limit rod 5 is located in the middle position of the two connecting rods 7. In this state, the snap rings 37 on the sliding rods 6 on both sides are placed on the outside of the baffle 21. Therefore, the limit rod 5 in the initial state can limit the sliding rods 6 on both sides at the same time. When the limit rod 5 deviates to one side, the arc groove 22 on the limit rod 5 will be aligned with the snap ring 37 on one of the sliding rods 6, so that the snap ring 37 can pass through the arc groove 22 and move downward.

[0037] Both sides of the bottom of the limiting rod 5 are fixedly connected with vertical plates 8 , and the outer side of the vertical plates 8 is embedded with a second magnet 27 .

[0038] The above-mentioned adjustment component includes a sleeve 9 arranged on the inner side of the connecting rod 7. Specifically, a support plate 10 is fixedly connected to the inner side surface of the connecting rod 7. The sleeve 9 penetrates the support plate 10 and is rotatably connected thereto. A push rod 3 is slidably arranged at the bottom end of the sleeve 9. The bottom end of the push rod 3 is arranged on the outer side of the supporting leg, so that when the drone body 1 lands, the push rod 3 will first contact the ground relative to the supporting leg. Specifically, a spiral limiting groove 23 is opened on the inner wall of the sleeve 9, and a limiting block 25 that slides with the limiting groove 23 is fixedly connected to the outer circumferential surface of the push rod 3. A convex block 11 is fixedly connected to the inner side surface of the connecting rod 7. The rod 3 passes through the protrusion 11 and is slidably connected with it. In actual application, in order to prevent the push rod 3 from rotating, a positioning groove 12 is opened on the outer circumferential surface of the push rod 3 along its diameter direction, and the protrusion 11 is opened with a through hole that cooperates with the push rod 3, and a positioning block 24 that slides with the positioning groove 12 is fixedly connected to the inner wall of the through hole. A first magnet 26 that cooperates with the second magnet 27 is embedded on the outer circumferential surface of the sleeve 9, and the first magnet 26 has different magnetic poles on the opposite side of the second magnet 27. The outer side surface of the vertical plate 8 is set to an arc surface and cooperates with the sleeve 9 to facilitate the first magnet 26 to cooperate with the second magnet 27.

[0039] In actual use, when the drone body 1 lands on an uneven ground, the top rod 3 on one side will be the first to contact the ground. Here, the top rod 3 on the right side will be taken as an example to contact the ground first. When the top rod 3 on the right side contacts the ground, it will move upward relative to the sleeve 9, thereby driving the sleeve 9 to rotate through the cooperation between the limit block 25 and the limit groove 23. During the rotation of the sleeve 9, the first magnet 26 and the second magnet 27 will gradually align. At this time, the suction force of the first magnet 26 on the second magnet 27 can drive the right fixing plate 13 to slide outward, thereby driving the limiting rod 5 to slide in the direction of the right connecting rod 7. When the limiting rod 5 slides to the right so that the fixing plate 13 contacts the sleeve 9, the arc groove 22 on the limiting rod 5 will be aligned with the retaining ring 37 on the left sliding rod 6, thereby causing the limiting rod 5 to lose its limiting effect on the left sliding rod 6. At this time, the left The sliding bar 6 on the side can pop out relative to the connecting rod 7, while the snap ring 37 on the right sliding bar 6 is still placed on the top of the baffle 21. The limiting of the snap ring 37 by the baffle 21 can prevent the sliding bar 6 on the right from popping out. Therefore, when the right top rod 3 and the supporting leg first touch the ground, the sliding bar 6 on this side is still in a state of being locked by the limiting rod 5, and the limiting relationship between the sliding bar 6 on the left and the limiting rod 5 is lost, so that the sliding bar 6 on the left can be popped out relative to the connecting rod 7 and placed in the groove, so as to support the drone body 1, thereby maintaining the stability of the drone body 1 and preventing it from tipping over. Later, when the drone body 1 takes off again, the top rod 3 will slide downward and reset under the action of its own gravity, thereby causing the first magnet 26 and the second magnet 27 to be staggered, so that the limiting rod 5 can return to the initial position to limit the sliding bars 6 on both sides at the same time.

[0040] like Figure 3 , 9 -10, a connecting block 16 is fixedly connected to the outer side of the connecting rod 7, and the interior of the connecting block 16 is arranged as a cavity structure. Specifically, a slot is opened at one end of the connecting block 16 close to the connecting rod 7, and a clamping block 32 is slidably arranged in the slot. A limiting spring 33 is also arranged in the slot, and the two ends of the limiting spring 33 are respectively fixedly connected to the clamping block 32 and the side opposite to the slot. A counterweight block 36 is slidably arranged in the cavity of the connecting block 16, and a pressure rod 35 is fixedly connected between the counterweight block 36 and the clamping block 32. The pressure rod 35 passes through the connecting block 16 and is slidably connected thereto. In order to limit the counterweight block 36, a baffle 34 is fixedly connected to the inner wall of the cavity of the connecting block 16, and the baffle 34 is arranged on the side of the counterweight block 36 close to the pressure rod 35.

[0041] Furthermore, a guide groove is provided on the outer surface of the sealing block 29, and the end of the block 32 away from the pressure rod 35 is located in the guide groove, and a plurality of blocks 31 cooperating with the block 32 are fixedly provided on the inner wall of the guide groove, and the side of the block 32 close to the block 31 is set as an inclined surface, so that the sealing block 29 can only move upward in one direction relative to the block 32.

[0042] In actual use, when the drone tilts to one side, the counterweight block 36 on the same side slides to the end face of the cavity, and drives the card block 32 and the stop block 31 to stagger through the pressure rod 35. When the slide bar 6 pops out and contacts the groove on the ground, as the slide bar 6 slides to the outside of the connecting rod 7, the tilted side of the drone body 1 can be lifted up, so that the drone body 1 is gradually in a horizontal state. At this time, the connecting block 16 on the connecting rod 7 is also in a horizontal state, so that the counterweight block 36 in the connecting block 16 loses the pressure on the pressure rod 35, so that under the action of the limit spring 33, the card block 32 can be driven to pop out and cooperate with the stop block 31, so as to prevent the stop block 31 from moving further downward, which is beneficial to locking the sealing block 29 and the slide bar 6, so that the drone body 1 is in a stable state, and at this time the drone body 1 is also in an approximately horizontal state, which is beneficial for its operations such as filming.

[0043] To sum up, this device cooperates with the adjustment component and the limit component so that when the drone body 1 lands on a more complex terrain, the top rod 3 that first contacts the ground can drive the limit rod 5 to move to this side, thereby allowing the limit rod 5 to release the limit on the other side slide bar 6, and then the slide bar 6 can be used to lift up the inclined side of the drone body 1, so that the drone body 1 is gradually in a horizontal state, and in this process, the slide bar 6 can be locked by using the block 32 and the stop block 31, that is: when the drone body 1 is in a horizontal state, the slide bar 6 stops popping out, which is beneficial to maintaining the stability of the drone body 1.

[0044] like Figure 2-4As shown in Figures 9 and 10, a pull rope 14 is fixedly connected to the top of the slide bar 6, and the other end of the pull rope 14 passes through the connecting rod 7 and is slidably connected thereto. A motor is fixedly arranged at the bottom of the support platform 2, and a reel 15 is connected to the output shaft of the motor. One end of the pull rope 14 extending to the outside of the connecting rod 7 is fixedly connected to the reel 15. In actual use, when it is necessary to drive the slide bar 6 to reset, the reel 15 can be driven to rotate by the motor, thereby reeling the pull rope 14 and driving the slide bar 6 to move upward along the connecting rod 7. In this process, the clamping ring 37 on the outside of the slide bar 6 will engage with the limit rod 5. The baffle plate 21 contacts and squeezes the baffle plate 21 on the upper part, so that the baffle plate 21 flips upward relative to the limit rod 5. When the snap ring 37 passes over the baffle plate 21, the baffle plate 21 deflects downward and resets under the action of its own gravity. At this time, the snap ring 37 can be limited by the baffle plate 21 to prevent the slide bar 6 from sliding downward. Of course, in actual use, a spring can be arranged on the inner wall of the groove 20 to assist the baffle plate 21 in resetting. When the snap ring 37 is limited by the baffle plate 21, the motor can be reversed to release the pull rope 14 for the next use. The above-mentioned pull rope 14 passes through the fixed plate 13 and is slidably connected thereto.

[0045] like Figure 8-10 As shown, a first ball bearing can be installed on one side of the vertical plate 8 close to the sleeve 9 to reduce the friction between the vertical plate 8 and the sleeve 9, and a second ball bearing can be installed on the top and bottom of the counterweight block 36 to reduce the friction between the counterweight block 36 and the connecting block 16.

Claims

1. A safety protection device for an unmanned aerial vehicle, comprising an unmanned aerial vehicle body and a support platform arranged at the bottom of the unmanned aerial vehicle body, connecting rods are fixedly installed on both sides of the bottom of the support platform, and a sliding rod is elastically connected to the bottom end of the connecting rod, characterized in that: A limit assembly is provided between the two connecting rods, the limit assembly cooperates with the slide rod, and both ends of the limit assembly cooperate with adjustment assemblies; When the adjustment component on one side touches the ground first, the limit component can be driven to slide in the direction of the adjustment component on this side, so that the limit component is disconnected from the sliding rod that touches the ground later, and the sliding rod that is disconnected from the limit component pops outward and supports the drone body; A circular hole is provided on the connecting rod, a clamping ring is provided on the outer fixed sleeve of the sliding rod, and the clamping ring is slidably arranged inside the circular hole, the bottom end of the sliding rod passes through the connecting rod and is slidably connected with the connecting rod, a sealing block is fixedly connected to the outer side of the sliding rod, and the sealing block is slidably arranged in the circular hole, and a second spring is provided on the outer sleeve of the sliding rod, and the second spring is arranged between the sealing block and the end surface of the circular hole; The locking plate is provided with a plurality of locking plates, the locking plate being provided with a plurality of locking plates at the bottom end and a plurality of locking plates at the bottom end. The adjusting assembly comprises a sleeve arranged on the inner side of the connecting rod, a support plate is fixedly connected to the inner side surface of the connecting rod, the sleeve passes through the support plate and is rotatably connected thereto, a push rod is slidably arranged on the bottom end of the sleeve, a spiral limiting groove is opened on the inner wall of the sleeve, a limiting block which is slidably matched with the limiting groove is fixedly connected to the outer circumferential surface of the push rod, a convex block is fixedly connected to the inner side surface of the connecting rod, the push rod passes through the convex block and is slidably connected thereto, a first magnet which is matched with the second magnet is embedded on the outer circumferential surface of the sleeve, and a side opposite to the second magnet has different magnetic poles; A connecting block is fixedly connected to the outer side of the connecting rod, and the interior of the connecting block is arranged as a cavity structure. A notch is provided at one end of the connecting block close to the connecting rod, and a clamping block is elastically connected in the notch. A counterweight block is slidably arranged in the cavity of the connecting block, and a pressure rod is fixedly connected between the counterweight block and the clamping block. A guide groove is provided on the outer side surface of the sealing block, and the end of the clamping block away from the pressure rod is located in the guide groove, and a plurality of blocks cooperating with the clamping block are fixedly arranged on the inner wall of the guide groove, and the side of the clamping block close to the block is arranged as an inclined surface.

2. The safety protection device for an unmanned aerial vehicle according to claim 1, characterized in that: The top end of the slide rod is fixedly connected with a pull rope, and the other end of the pull rope passes through the connecting rod and is slidably connected with the connecting rod.

3. The safety protection device for an unmanned aerial vehicle according to claim 2, characterized in that: A motor is fixedly arranged at the bottom of the support platform, an output shaft of the motor is connected to a reel, and one end of the pull rope extending to the outside of the connecting rod is fixedly connected to the reel.

4. The safety protection device for an unmanned aerial vehicle according to claim 1, characterized in that: The outer side surface of the vertical plate is configured as a curved surface and matches with the sleeve.

5. The safety protection device for an unmanned aerial vehicle according to claim 1, characterized in that: The outer peripheral surface of the push rod is provided with a positioning groove along the diameter direction thereof, the convex block is provided with a through hole matched with the push rod, and a positioning block slidably matched with the positioning groove is fixedly connected to the inner wall of the through hole.

6. The safety protection device for an unmanned aerial vehicle according to claim 1, characterized in that: A through flow guide hole is provided at the outer side of the connecting rod near the top end.

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