Anti-collision structure and subway tunnel patrol unmanned aerial vehicle

Abstract

The utility model discloses a kind of anti-collision structure and subway tunnel patrol unmanned aerial vehicle, including hoop, the quantity of hoop is multiple, multiple hoop is fixed on unmanned aerial vehicle arm, and support rod is connected on hoop;Support rod is connected with support ring through multiple connecting columns on it, and the center of support ring coincides with the rotation axis of unmanned aerial vehicle paddle;Among them, multiple protective rods are provided on support ring, and multiple protective rods are distributed around unmanned aerial vehicle paddle along the circumference of support ring, and there is spacing between adjacent two protective rods;The utility model contacts barrier through support ring, and the controllable deformation of the wavy structure of protective rod is generated in the moment of collision, impact force is dispersed, while upper and lower reinforcing ring forms moment balance through vertical rod, the rigid connection of hoop and support rod keeps frame integrity, ensure that paddle continuously operates outside safety distance.

Description

Technical Field

[0001] This utility model relates to an anti-collision structure and a subway tunnel inspection drone, belonging to the field of drone technology. Background Technology

[0002] In the field of UAV subway tunnel inspection technology, existing anti-collision devices generally suffer from problems such as bulky structure, complex installation, and insufficient protective effectiveness. Traditional solutions often use fixed frames or rigid baffles. These rigid structures are prone to collisions with overhead contact line supports, cable supports, or tunnel walls in the narrow space of subway tunnels (such as circular tunnels with a diameter of 4-6 meters), leading to stress concentration and damage to the UAV frame. For example, subway tunnels contain power supply contact lines (such as 1500V DC rigid contact lines) and dense pipelines; rigid protective structures may pose a short-circuit risk due to collisions. Furthermore, elevated railway sections often experience strong crosswinds, and existing devices lack adaptive buffering designs for complex airflows, making it difficult to balance protective strength and flight stability. Additionally, bolt-mounted installations require specialized tools, making quick disassembly and maintenance impossible in the event of sudden obstacles in the subway tunnel (such as foreign object intrusion), affecting emergency response efficiency. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an anti-collision structure and a subway tunnel inspection drone to ensure that the propellers continue to operate at a safe distance.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an anti-collision structure, comprising:

[0005] Multiple clamps are fixed to the drone arm.

[0006] Support rod, the support rod is installed on the hoop;

[0007] A support ring is connected to a support rod via multiple connecting posts, and the center of the support ring coincides with the axis of rotation of the UAV propeller.

[0008] The support ring is provided with multiple protective rods, which are distributed around the drone propellers along the circumference of the support ring, with a gap between adjacent protective rods.

[0009] Preferably, both the upper and lower ends of the protective rod are inclined toward the center of the support ring.

[0010] Preferably, an upper reinforcing ring and a lower reinforcing ring are respectively provided above and below the support ring, both of which are fixedly connected to the protective rod, and the ends of the support ring, the upper reinforcing ring and the lower reinforcing ring are fixedly connected by a vertical rod.

[0011] Preferably, the protective rod located between the upper and lower reinforcing rings is arranged in a wave shape.

[0012] Preferably, the clamp includes two clamping plates, which are fastened to the drone arm by bolts, and C-shaped grooves are provided on both sides of the opposite surfaces of the two clamping plates;

[0013] When the two plates are joined together, the C-shaped grooves on the same side form a circular insertion hole;

[0014] The support rod is inserted into the socket.

[0015] Preferably, a stop block is fixedly connected to the support rod, and a spring is sleeved on the support rod, with one end of the spring abutting against the stop block and the other end of the spring abutting against the side wall of the hoop.

[0016] Preferably, the end of the support rod has two symmetrical rotating slots, and the interior of the two rotating slots is rotatably connected to a rotating rod through a spring piece. One end of the rotating rod rotates out of the rotating slot and abuts against the side wall of the hoop.

[0017] Preferably, the rotating trough has settling grooves on both sides.

[0018] Preferably, two support rods are symmetrically arranged on the same drone arm.

[0019] Preferably, a subway tunnel inspection drone includes the anti-collision structure described in any of the above technical solutions.

[0020] Compared with existing technologies:

[0021] 1. This utility model uses a support ring to contact the obstacle. The wave-shaped structure of the protective rod generates controllable deformation at the moment of collision, which disperses the impact force. At the same time, the upper and lower reinforcing rings form a torque balance through the vertical rod. The rigid connection between the hoop and the support rod maintains the integrity of the frame and ensures that the blades continue to operate at a safe distance.

[0022] 2. This utility model employs a dual locking mechanism—fixed by clamp bolts and elastically engaged with the support rod—allowing for rapid installation of the protective components without the need for specialized tools, thus improving equipment maintenance efficiency. The rotating rod and spring-loaded self-locking structure, combined with a spring-loaded buffer system, ensure the protective rod's instantaneous energy absorption capacity under severe impact. For complex operating scenarios such as subway tunnels, when the drone encounters a sudden obstacle, the protective rod can form a 360° elastic barrier, reducing the impact force. Simultaneously, the quick-disassembly mechanism ensures rapid component replacement in emergency situations, providing reliable protection for the drone's continuous operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of the support ring and the protective rod of this utility model;

[0026] Figure 4 This is a top view of the hoop, support rod, and support ring of this utility model;

[0027] Figure 5 This is an exploded view of the hoop, support rod, and support ring of this utility model.

[0028] Figure 6 This is an exploded view of the support rod, rotating rod, and spring piece of this utility model.

[0029] In the picture:

[0030] 1. Hoop; 101. Clamping plate; 102. C-groove;

[0031] 2. Support rod, 201. Stop block, 202. Rotary groove, 203. Settlement groove;

[0032] 3. Support ring; 4. Protective rod;

[0033] 5. Upper reinforcing ring; 6. Lower reinforcing ring;

[0034] 7. Spring; 8. Rotating rod; 9. Spring piece;

[0035] 10. Connecting column; 11. Vertical rod. Detailed Implementation

[0036] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0037] Example 1

[0038] like Figures 1-6 As shown, in this embodiment, an anti-collision structure is provided, including multiple clamps 1, which are fixed to the drone arm, such as... Figure 1 As shown, there are four drone arms, and each drone arm has two clamps 1; support rods 2 are connected to the clamps 1; support rings 3 are connected to the support rods 2 through multiple connecting columns 10, and the center of the support rings 3 coincides with the rotation axis of the drone propeller; multiple protective rods 4 are provided on the support rings 3, and the multiple protective rods 4 are distributed around the drone propellers along the circumference of the support rings 3, with a gap between adjacent protective rods 4.

[0039] The upper and lower ends of the protective rod 4 are both inclined towards the center of the support ring 3, such as Figure 2 , Figure 3 As shown, when the upper and lower ends of the protective rod 4 are tilted, it can effectively protect the top and bottom of the drone propeller, thereby improving the protection effect.

[0040] An upper reinforcing ring 5 and a lower reinforcing ring 6 are respectively provided above and below the support ring 3. Both the upper reinforcing ring 5 and the lower reinforcing ring 6 are fixedly connected to the protective rod 4, and the ends of the support ring 3, the upper reinforcing ring 5 and the lower reinforcing ring 6 are fixedly connected by the vertical rod 11.

[0041] The protective rod 4, located between the upper reinforcing ring 5 and the lower reinforcing ring 6, is designed in a wave shape.

[0042] The working process of drones for subway tunnel inspection:

[0043] When a drone performs a tunnel inspection mission, if the drone's protective rod collides with the tunnel wall, the support ring 3 will contact the obstacle first. The wave-shaped structure of the protective rod 4 will undergo controllable deformation at the moment of impact, dispersing the impact force. At the same time, the upper and lower reinforcing rings will form a torque balance through the vertical rod 11. The rigid connection between the hoop 1 and the support rod 2 maintains the integrity of the frame, ensuring the safe passage of the blades in areas with dense overhead contact lines (such as dead-end shafts and pump stations).

[0044] Example 2

[0045] like Figures 4-6 As shown, based on Embodiment 1, in this embodiment, in order to facilitate fixing the clamp 1 to the drone arm, the clamp 1 includes two clamps 101, which are clamped to the drone arm by bolts, and C-shaped grooves 102 are provided on both sides of the opposite surfaces of the two clamps 101.

[0046] When the two clamps 101 are joined together, the C-shaped grooves 102 on the same side are joined to form a circular insertion hole;

[0047] The support rod 2 is inserted into the socket.

[0048] A stop block 201 is fixedly connected to the support rod 2, and a spring 7 is sleeved on the support rod 2. One end of the spring 7 abuts against the stop block 201, and the other end of the spring 7 abuts against the side wall of the hoop 1.

[0049] Two rotating slots 202 are symmetrically opened at the end of the support rod 2. The interior of the two rotating slots 202 is rotatably connected to the rotating rod 8 through the spring piece 9. One end of the rotating rod 8 rotates out of the rotating slot 202 and abuts against the side wall of the hoop 1.

[0050] The two sides of the sluice gate 202 are provided with settling grooves 203, such as Figure 6 As shown, when the rotating rod 8 is pressed, the groove 203 ensures that the rotating rod 8 can be fully rotated into the groove 202, which facilitates the removal of the support rod 2 from the insertion hole of the hoop 1.

[0051] Two support rods 2 are symmetrically arranged on the same drone arm.

[0052] Example 3

[0053] This application also provides a subway tunnel inspection drone, including the anti-collision structure of any of the above embodiments.

[0054] like Figure 1 As shown, the anti-collision structure is fixed to the four arms of the drone. The installation process is as follows:

[0055] First, fix the hoop 1 to the drone arm with bolts, and fix two hoop 1 to each drone arm;

[0056] Then, insert the end of the support rod 2 near the rotating rod 8 into the insertion hole. After the rotating rod 8 passes through the insertion hole, the spring piece 9 pushes up the end of the rotating rod 8 near the hoop 1. In this way, the rotating rod 8 abuts against the hoop 1, and the spring 7 abuts against the side wall of the hoop 1 (e.g., Figure 4 As shown), in this way, the protective rod 4 can be fixed around the drone propeller blades to protect them. When the protective rod 4 hits an obstacle, the spring 7 also acts as a buffer.

[0057] When it is necessary to remove the protective rod 4, simply press the rotating rod 8. The rotating rod 8 overcomes the spring pressure of the spring piece 9 and rotates into the rotating groove 202. In this state, the support rod 2 can be pulled out from the insertion hole of the hoop 1, thereby quickly removing the protective rod 4.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A collision avoidance structure, characterized in that, include: Hoop (1), the number of hoops (1) is multiple, and multiple hoops (1) are fixed on the UAV arm; Support rod (2), the support rod (2) is installed on the hoop (1); The support ring (3) is connected to the support rod (2) by multiple connecting posts (10), and the center of the support ring (3) coincides with the rotation axis of the UAV propeller. Among them, the support ring (3) is provided with multiple protective rods (4), and the multiple protective rods (4) are distributed around the UAV propellers along the circumference of the support ring (3), with a gap between two adjacent protective rods (4); The clamp (1) includes two clamps (101), which are fastened to the drone arm by bolts. C-shaped grooves (102) are provided on both sides of the opposite surfaces of the two clamps (101). When the two clamps (101) are joined together, the C-shaped grooves (102) on the same side are joined together to form a circular insertion hole; The support rod (2) is inserted into the socket; A stop block (201) is fixedly connected to the support rod (2), and a spring (7) is sleeved on the support rod (2). One end of the spring (7) abuts against the stop block (201), and the other end of the spring (7) abuts against the side wall of the hoop (1). The support rod (2) has two symmetrical slots (202) at its end. The two slots (202) are rotatably connected to a rotating rod (8) through a spring piece (9). One end of the rotating rod (8) rotates out of the slot (202) and abuts against the side wall of the hoop (1).

2. The anti-collision structure according to claim 1, characterized in that, The upper and lower ends of the protective rod (4) are inclined toward the center of the support ring (3).

3. The anti-collision structure according to claim 1, characterized in that, The upper reinforcing ring (5) and the lower reinforcing ring (6) are respectively provided above and below the support ring (3). The upper reinforcing ring (5) and the lower reinforcing ring (6) are fixedly connected to the protective rod (4), and the ends of the support ring (3), the upper reinforcing ring (5) and the lower reinforcing ring (6) are fixedly connected by the vertical rod (11).

4. The anti-collision structure according to claim 3, characterized in that, The protective rod (4) located between the upper reinforcing ring (5) and the lower reinforcing ring (6) is arranged in a wave shape.

5. The anti-collision structure according to claim 1, characterized in that, The rotating trough (202) has sinkholes (203) on both sides.

6. The anti-collision structure according to claim 1, characterized in that, Two support rods (2) are symmetrically arranged on the same UAV arm.

7. A subway tunnel inspection drone, characterized in that, Includes the anti-collision structure as described in any one of claims 1-6.

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