Highly concealed police reconnaissance unmanned plane

By installing protective and retractable mechanisms on the drone, the problem of rotor damage was solved, enabling the drone to perform covert flight and reconnaissance missions in complex environments.

CN122276202APending Publication Date: 2026-06-26JIANGSU DIGITAL EAGLE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU DIGITAL EAGLE TECH CO LTD
Filing Date
2026-05-21
Publication Date
2026-06-26

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Abstract

This invention relates to the field of unmanned aerial vehicle (UAV) technology and discloses a highly concealed police reconnaissance UAV, including a UAV body and a rotor mounted on the outside of the UAV body. The UAV body is equipped with a protective mechanism and a retraction mechanism. The support legs can be retracted into the storage slot by an electric telescopic rod, thereby reducing the volume of the lower part of the UAV body. The upward movement of the support legs synchronously moves the telescopic rod and the support plate, thereby moving the outer protective sleeve upward until it moves to the lower end of the top protective plate. This, together with the top protective plate, provides all-round protection for the rotor. In this way, when the UAV body flies covertly into grass or forest, it can prevent weeds or branches from contacting the rotor and causing damage to the rotor, which could lead to the crash of the UAV body. This ensures that the UAV body can fly covertly into grass or forest for covert reconnaissance.
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Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, specifically, it relates to a highly covert police reconnaissance UAV. Background Technology

[0002] With the rapid development of technology, drone technology has emerged and is gradually being widely applied in various fields. Drones have significant advantages such as high mobility, unique perspective, and the ability to operate in complex environments, bringing new opportunities to police work. In the field of policing, drones can quickly reach the scene, providing a real-time aerial view, greatly expanding the scope and vision of reconnaissance, and effectively making up for the shortcomings of traditional investigative methods.

[0003] Traditional drones have significant limitations when performing covert reconnaissance missions. For example, when the drone attempts to enter complex environments such as dense bushes, the propellers are prone to colliding with tree branches, which may damage the propellers, causing the drone to lose balance or even crash.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To address the significant limitations of traditional drones in performing covert reconnaissance missions—such as the high risk of propeller collisions with branches when the drone attempts to enter complex environments like dense thickets, potentially damaging the propellers, causing the drone to lose balance, or even crash—the basic concept of this invention is as follows: A highly concealed police reconnaissance drone includes a drone body and a rotor mounted on the outside of the drone body. The drone body is equipped with a protective mechanism and a retraction mechanism. The protective mechanism includes a top protective plate and an outer protective sleeve installed at the top and outer sides of the rotor. The top protective plate and the outer protective sleeve are installed together to protect the top and outer sides of the rotor. The retraction mechanism includes a telescopic slide bar and a fixed rod disposed on one side of the rotor. The telescopic slide bar and the fixed rod are configured to cooperate to drive the rotor to extend and retract, thereby adjusting the size of the UAV body.

[0006] In a preferred embodiment of the present invention, the protective mechanism includes a mounting hole at the bottom of the drone body. An electric telescopic rod is installed on the inner wall of the mounting hole. A connecting plate is connected to the output end of the electric telescopic rod. A support leg is connected to the bottom end of the connecting plate. A telescopic rod is connected to the outer side of the connecting plate. A support connecting plate is connected to the end of the telescopic rod away from the connecting plate. A sliding sleeve is connected to the top of the end of the support connecting plate away from the telescopic rod. A connecting slide plate is slidably installed on the inner wall of the sliding sleeve. The outer wall of the connecting slide plate away from the sliding sleeve is connected to the outer wall of the outer protective sleeve. The bottom end of the top protective plate is connected to the top of the fixed rod.

[0007] In a preferred embodiment of the present invention, the retraction mechanism includes a motor mounted on the top of the drone body, a rotating plate connected to the output end of the motor, a support column connected to the top of the rotating plate, a first hinge seat connected to the outer wall of the support column, a linkage rod movably mounted on the first hinge seat, a second hinge seat movably mounted at the end of the linkage rod away from the first hinge seat, a connecting rod connected to one side of the second hinge seat, and the bottom end of the connecting rod connected to the outer wall of the telescopic slide rod.

[0008] In a preferred embodiment of the present invention, a fixing rod is provided at the bottom of the rotor, a limiting groove is formed on the outer wall of the fixing rod, a support rod is slidably provided on the inner wall of the limiting groove, and the end of the support rod away from the inner wall of the limiting groove is connected to the inner wall of the outer protective sleeve.

[0009] In a preferred embodiment of the present invention, the bottom of the drone body is provided with a storage groove, the outer wall of the connecting plate is movably disposed inside the storage groove, one side of the outer wall of the outer protective sleeve is provided with a connecting groove, and the outer wall of the fixing rod is movably disposed inside the connecting groove.

[0010] In a preferred embodiment of the present invention, a support sleeve is connected to the outer wall of the drone body. A movable hole is opened on the outer wall of one end of the support sleeve. The outer wall of the telescopic slide rod is slidably disposed on the inner wall of the movable hole. The end of the telescopic slide rod away from the support sleeve is connected to the outer wall of one side of the fixed rod.

[0011] In a preferred embodiment of the present invention, the outer wall of the telescopic slide rod is fitted to the inner wall of the movable hole.

[0012] In a preferred embodiment of the present invention, the number of support rods on the inner wall of the outer protective sleeve is two, and the support rods are distributed in a left-right symmetrical structure on the inner wall of the outer protective sleeve.

[0013] In a preferred embodiment of the present invention, the outer wall of the fixing rod is fitted to the inner wall of the connecting groove.

[0014] Compared with the prior art, the present invention has the following advantages: This invention utilizes an electrically operated telescopic rod to retract the support legs into a storage slot, thereby reducing the volume of the lower part of the drone and increasing its stealth capabilities. The upward movement of the support legs simultaneously moves the telescopic rod and the support plate, which in turn moves the sliding sleeve and the connecting plate. The movement of the connecting plate then moves the outer protective sleeve upward until it reaches the lower end of the top protective plate. This, in conjunction with the top protective plate, provides comprehensive protection for the rotor. This prevents weeds or branches from contacting the rotor and causing damage that could lead to a crash when the drone is flying covertly through grass or woods. This ensures the drone can conduct covert reconnaissance in grassy or wooded areas.

[0015] This invention uses a motor to drive a rotating plate to rotate counterclockwise, which in turn drives the first hinge seat to rotate. The rotation of the first hinge seat drives the linkage rod to move accordingly. The movement of the linkage rod drives the telescopic slide rod to move on the inner wall of the support sleeve. The movement of the telescopic slide rod causes the fixed rod and the rotor to retract inward, thereby reducing the rotor's opening size. This allows the drone to fly covertly in complex environments such as narrow grass or forests, further reducing the impact of weeds or branches on the drone during flight.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of a highly stealthy police reconnaissance drone. Figure 2 This is a schematic diagram of the bottom-view structure of a highly concealed police reconnaissance drone. Figure 3 A schematic diagram of the protective mechanism of a highly concealed police reconnaissance drone. Figure 1 ; Figure 4 Schematic diagram of the partial separation structure of the protective mechanism of a highly concealed police reconnaissance drone. Figure 2 ; Figure 5 A schematic diagram of the retraction mechanism of a highly concealed police reconnaissance drone. Figure 1 ; Figure 6 A schematic diagram of the retraction mechanism of a highly concealed police reconnaissance drone. Figure 2 .

[0018] In the diagram: 1. UAV body; 2. Rotor; 31. Protective mechanism; 311. Electric telescopic rod; 312. Connecting plate; 313. Support leg; 314. Telescopic rod; 315. Support connecting plate; 316. Sliding sleeve; 317. Connecting slide plate; 318. Outer protective sleeve; 319. Support rod; 3110. Limiting slide groove; 3111. Top protective plate; 3112. Storage slot; 3113. Connecting slot; 32. Retraction mechanism; 321. Motor; 322. Rotating plate; 323. Support column; 324. First hinge seat; 325. Linkage rod; 326. Second hinge seat; 327. Connecting rod; 328. Supporting sliding sleeve; 329. Movable hole; 3210. Telescopic slide rod; 3211. Fixed rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example

[0020] like Figures 1 to 6 As shown, a highly concealed police reconnaissance drone includes a drone body 1 and a rotor 2 disposed on the outside of the drone body 1. The drone body 1 is equipped with a protective mechanism 31 and a retraction mechanism 32. The protective mechanism 31 includes a top protective plate 3111 and an outer protective sleeve 318 disposed on the top and outside of the rotor 2. The top protective plate 3111 and the outer protective sleeve 318 are configured to cooperate to protect the top and outside of the rotor 2. The retraction mechanism 32 includes a telescopic slide bar 3210 and a fixed rod 3211 disposed on one side of the rotor 2. The telescopic slide bar 3210 and the fixed rod 3211 are configured to cooperate to drive the rotor 2 to extend and retract, thereby adjusting the size of the drone body 1.

[0021] Furthermore, the protective mechanism 31 includes a mounting hole at the bottom of the UAV body 1. An electric telescopic rod 311 is installed on the inner wall of the mounting hole. A connecting plate 312 is connected to the output end of the electric telescopic rod 311. A support leg 313 is connected to the bottom end of the connecting plate 312. A telescopic rod 314 is connected to the outer side of the connecting plate 312. A support connecting plate 315 is connected to the end of the telescopic rod 314 away from the connecting plate 312. A sliding sleeve 316 is connected to the top of the end of the support connecting plate 315 away from the telescopic rod 314. A connecting slide plate 317 is slidably installed on the inner wall of the sliding sleeve 316. The outer wall of the connecting slide plate 317 away from the sliding sleeve 316 is connected to the outer wall of the outer protective sleeve 318. The bottom end of the top protective plate 3111 is connected to the top of the fixed rod 3211.

[0022] Furthermore, a fixing rod 3211 is provided at the bottom of the rotor 2. A limiting groove 3110 is provided on the outer wall of the fixing rod 3211. A support rod 319 is slidably provided on the inner wall of the limiting groove 3110. The end of the support rod 319 away from the inner wall of the limiting groove 3110 is connected to the inner wall of the outer protective sleeve 318. A storage groove 3112 is provided at the bottom of the drone body 1. The outer wall of the connecting plate 312 is movably provided inside the storage groove 3112. A connecting groove 3113 is provided on one side of the outer wall of the outer protective sleeve 318. The outer wall of the fixing rod 3211 is movably provided on the inner wall of the connecting groove 3113.

[0023] Furthermore, there are two support rods 319 on the inner wall of the outer protective sleeve 318. The support rods 319 are distributed symmetrically on the inner wall of the outer protective sleeve 318, so as to provide uniform support to the left and right sides of the outer protective sleeve 318, thereby improving the support stability of the outer protective sleeve 318. Example

[0024] The difference between the above embodiments and this embodiment is that: Figures 1 to 3 As shown, a highly concealed police reconnaissance drone has a retraction mechanism 32 including a motor 321 mounted on the top of the drone body 1. A rotating plate 322 is connected to the output end of the motor 321. A support column 323 is connected to the top of the rotating plate 322. A first hinge seat 324 is connected to the outer wall of the support column 323. A linkage rod 325 is movably mounted on the first hinge seat 324. A second hinge seat 326 is movably mounted at the end of the linkage rod 325 away from the first hinge seat 324. A connecting rod 327 is connected to one side of the second hinge seat 326. The bottom end of the connecting rod 327 is connected to the outer wall of the telescopic slide rod 3210.

[0025] Furthermore, a support sleeve 328 is connected to the outer wall of the UAV body 1. A movable hole 329 is opened on the outer wall of one end of the support sleeve 328. The outer wall of the telescopic slide rod 3210 is slidably disposed on the inner wall of the movable hole 329. The end of the telescopic slide rod 3210 away from the support sleeve 328 is connected to the outer wall of one side of the fixed rod 3211.

[0026] Furthermore, the outer wall of the telescopic slide rod 3210 is fitted with the inner wall of the movable hole 329, and the outer wall of the fixed rod 3211 is fitted with the inner wall of the connecting groove 3113. This improves the stability of the telescopic slide rod 3210 sliding support on the inner wall of the movable hole 329. By fitting the fixed rod 3211 with the connecting groove 3113, the stability of the fixed rod 3211 moving support on the inner wall of the connecting groove 3113 is improved.

[0027] The implementation principle of a highly concealed police reconnaissance drone in this embodiment is as follows: After the drone body 1 takes off, the electric telescopic rod 311 is activated, and its output end retracts, thereby driving the connecting plate 312 on the outer wall to move upward. As the connecting plate 312 moves, the supporting leg 313 moves upward, thus storing the supporting leg 313 and the connecting plate 312 into the storage slot 3112, thereby reducing the volume of the bottom of the drone body 1. At the same time, as the connecting plate 312 moves upward, the telescopic rod 314 moves upward, and as the telescopic rod 314 moves, the supporting connecting plate 315 moves upward. The movement of the supporting connecting plate 315 drives the sliding sleeve 316 and the connecting slide plate 317 to move upward, and the connecting slide plate 317 drives the outer protective sleeve 318 to move upward. As the outer protective sleeve 318 moves upward, it will drive the support rod 319 to move along the inner wall of the limiting groove 3110 opened on the fixed rod 3211. This will limit the outer protective sleeve 318 to the fixed rod 3211. At this time, the outer protective sleeve 318 can be fitted onto the outside of the rotor 2, thereby protecting the outside of the rotor 2. At the same time, when the outer protective sleeve 318 moves upward, it will contact the bottom end of the top protective plate 3111, thus providing all-round protection for the rotor 2. In this way, when the UAV body 1 flies covertly into grass or forest, it can prevent weeds or branches from contacting the rotor 2, causing damage to the rotor 2 and causing the UAV body 1 to crash. This ensures that the UAV body 1 can fly into grass or forest for covert reconnaissance.

[0028] When the drone body 1 needs to fly to a small space such as grass or forest, the motor 321 can be started. Its output end will drive the rotating plate 322 to rotate. As the rotating plate 322 rotates, it will synchronously drive the support column 323 and the first hinge seat 324 to rotate. At this time, it will drive the linkage rod 325, which is rotatably connected to the first hinge seat 324 and the second hinge seat 326, to rotate. When the rotating plate 322 is started to rotate counterclockwise, it will drive the linkage rod 325 to rotate and move. The rotation of the linkage rod 325 will drive the connecting rod 327 to move in the direction of the drone body 1. As the connecting rod 327 moves, it will synchronously drive the telescopic slide rod 3210 to slide on the inner wall of the movable hole 329 on the support slide sleeve 328. In this way, the fixed rod 3211 and the rotor 2 will move synchronously, so that the size of the rotor 2 can be adjusted. The drone body 1 is retracted, thereby reducing its overall size. This allows the drone body 1 to fly covertly in complex environments such as narrow grass or forests, further reducing the impact of weeds or branches on the drone body 1 during flight. When the fixed rod 3211 and rotor 2 retract, the outer protective sleeve 318, which is limited on its outer wall, will move synchronously. At this time, the outer protective sleeve 318 can drive the connecting slide plate 317 on the outer wall to slide on the inner wall of the sliding sleeve 316, thereby adapting and moving. At the same time, it drives the telescopic rod 314 to retract synchronously, thus reducing the overall size of the drone body 1. When it is necessary to restore the size, the motor 321 can be started to drive the rotating plate 322 to rotate clockwise, thereby driving the rotor 2 to extend outward through the movement of the linkage rod 325.

Claims

1. A highly concealed police reconnaissance drone, comprising a drone body (1) and a rotor (2) disposed on the outside of the drone body (1), characterized in that, The unmanned aerial vehicle (UAV) body (1) is equipped with a protective mechanism (31) and a retraction mechanism (32). The protective mechanism (31) includes a top protective plate (3111) and an outer protective sleeve (318) disposed on the top and outer sides of the rotor (2). The top protective plate (3111) and the outer protective sleeve (318) are configured together to protect the top and outer sides of the rotor (2). The retraction mechanism (32) includes a telescopic slide bar (3210) and a fixed rod (3211) disposed on one side of the rotor (2). The telescopic slide bar (3210) and the fixed rod (3211) are configured to drive the rotor (2) to extend and retract, thereby adjusting the size of the UAV body (1).

2. The highly concealed police reconnaissance drone according to claim 1, characterized in that, The protective mechanism (31) includes a mounting hole at the bottom of the UAV body (1). An electric telescopic rod (311) is installed on the inner wall of the mounting hole. A connecting plate (312) is connected to the output end of the electric telescopic rod (311). A support leg (313) is connected to the bottom end of the connecting plate (312). A telescopic rod (314) is connected to the outside of the connecting plate (312). A support connecting plate (315) is connected to the end of the telescopic rod (314) away from the connecting plate (312). A sliding sleeve (316) is connected to the top of the end of the support connecting plate (315) away from the telescopic rod (314). A connecting slide plate (317) is slidably installed on the inner wall of the sliding sleeve (316). The outer wall of the connecting slide plate (317) away from the sliding sleeve (316) is connected to the outer wall of the outer protective sleeve (318). The bottom end of the top protective plate (3111) is connected to the top of the fixed rod (3211).

3. The highly concealed police reconnaissance drone according to claim 1, characterized in that, The retraction mechanism (32) includes a motor (321) installed on the top of the UAV body (1). A rotating plate (322) is connected to the output end of the motor (321). A support column (323) is connected to the top of the rotating plate (322). A first hinge seat (324) is connected to the outer wall of the support column (323). A linkage rod (325) is movably installed on the first hinge seat (324). A second hinge seat (326) is movably installed at the end of the linkage rod (325) away from the first hinge seat (324). A connecting rod (327) is connected to one side of the second hinge seat (326). The bottom end of the connecting rod (327) is connected to the outer wall of the telescopic slide rod (3210).

4. A highly concealed police reconnaissance drone according to claim 2, characterized in that, The rotor (2) is provided with a fixing rod (3211) at the bottom. A limiting groove (3110) is provided on the outer wall of the fixing rod (3211). A support rod (319) is slidably provided on the inner wall of the limiting groove (3110). One end of the support rod (319) away from the inner wall of the limiting groove (3110) is connected to the inner wall of the outer protective sleeve (318).

5. A highly concealed police reconnaissance drone according to claim 2, characterized in that, The drone body (1) has a storage slot (3112) at the bottom. The outer wall of the connecting plate (312) is movably disposed inside the storage slot (3112). The outer wall of the outer protective sleeve (318) has a connecting slot (3113) on one side. The outer wall of the fixing rod (3211) is movably disposed inside the connecting slot (3113).

6. A highly concealed police reconnaissance drone according to claim 3, characterized in that, The outer wall of the UAV body (1) is connected to a support sleeve (328). One end of the support sleeve (328) has an opening (329) on its outer wall. The outer wall of the telescopic rod (3210) is slidably disposed on the inner wall of the opening (329). The end of the telescopic rod (3210) away from the support sleeve (328) is connected to the outer wall of one side of the fixed rod (3211).

7. A highly concealed police reconnaissance drone according to claim 3, characterized in that, The outer wall of the telescopic slide rod (3210) fits snugly against the inner wall of the movable hole (329).

8. A highly concealed police reconnaissance drone according to claim 4, characterized in that, The number of support rods (319) on the inner wall of the outer protective sleeve (318) is two, and the support rods (319) are distributed in a left-right symmetrical structure on the inner wall of the outer protective sleeve (318).

9. A highly concealed police reconnaissance drone according to claim 6, characterized in that, The outer wall of the fixing rod (3211) fits snugly against the inner wall of the connecting groove (3113).