Building outer wall crack detection unmanned aerial vehicle facilitating illumination and light supplement

By designing and adjusting fill lights and jet marking systems on the crack detection drone of the building exterior wall, the problem of unclear photos and inability to mark them due to insufficient light is solved, and more accurate detection and convenient post-maintenance are achieved.

CN222793819UActive Publication Date: 2025-04-25新疆理工学院
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Patent Information

Application Number
CN202421865764.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-04
Publication Date
2025-04-25
Estimated Expiration
2034-08-04

AI Technical Summary

Technical Problem

When the existing building exterior wall crack detection drone is inspected in an area with insufficient light, the photos taken by the camera are not clear, resulting in unclear cracks, affecting the accuracy of detection, and the crack areas cannot be marked, affecting later maintenance.

Method used

A crack detection drone for building exterior walls is designed to facilitate lighting and fill light. It uses a double-headed motor to drive the screw and movable rod structure to adjust the lighting angle of the fill light and provide fill light lighting in a specified direction. At the same time, the detected cracks are marked through the jet tube and nozzle structure.

Benefits of technology

In the detection of cracks in the exterior wall of the building, by adjusting the lighting of the fill light, the crack photos taken by the camera are clearer, improving the accuracy of the detection; at the same time, the crack areas can be marked to facilitate later repair work.

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Abstract

The utility model relates to the field of building outer wall crack detection, and discloses a building outer wall crack detection unmanned aerial vehicle convenient for illumination and light supplementation, which comprises an unmanned aerial vehicle body, a fixing frame fixedly mounted at the top of the unmanned aerial vehicle body, a camera fixedly mounted at the top of the unmanned aerial vehicle body, and a double-head motor fixedly mounted at the top of the fixing frame. The left side of the double-head motor is fixedly connected with a forward screw, the right side of the double-head motor is fixedly connected with a reverse screw, and the surfaces of the forward screw and the reverse screw are both in threaded connection with movable rods. According to the utility model, the double-head motor drives the forward screw rod and the reverse screw rod and the movable rod and the connecting rod to cooperate with each other, and drives the adjusting light supplementing lamp and the rotating frame to rotate on the fixed frame to adjust light supplementing work, so that when the camera detects the crack of the outer wall of the building, the detection precision is improved; and the adjusting light supplementing lamp can adjust the shooting angle of the camera according to the light supplementing area to carry out light supplementing illumination, so that the crack shot by the camera is clearly illuminated.
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Description

Technical Field

[0001] The utility model relates to the field of building exterior wall crack detection, in particular to a building exterior wall crack detection drone with convenient lighting and supplementary light. Background Art

[0002] Building exterior wall crack detection refers to the process of monitoring and inspecting possible cracks in the building engineering structure. Through crack detection, damage to the structure can be discovered in a timely manner, accidents can be prevented, and the safety of people’s lives and property can be protected.

[0003] In the crack detection of building exterior walls, drones are used to detect cracks on the outer surface of the building exterior walls. After searching, the Chinese patent announcement number: CN217586949U discloses a building exterior wall crack detection device, which solves the problem that the cameras in the general building exterior wall automatic detection device are fixed by screws, so tools are needed during disassembly and assembly, so the operation is relatively cumbersome. The drone includes a cylinder connected to the drone, a threaded cylinder is threadedly connected to the cylinder, a ring body is rotatably connected to the threaded cylinder, and positioning components are respectively arranged on the ring body; the positioning component includes a push block connected to the ring body, the push block is interlaced and connected with an L-shaped rod, the L-shaped rod is slidably plugged into the cylinder, the bottom end of the L-shaped rod is connected with a positioning plate, the top end of the L-shaped rod is plugged with a sliding rod, the sliding rod is connected to the cylinder, and a spring is sleeved on the sliding rod; the utility model, through the positioning component set, the threaded cylinder is rotated, and the force conversion direction is achieved in cooperation with the push block and the trapezoidal hole, so that the positioning plate fixes the camera to ensure the stability of the camera when it is installed.

[0004] The above-mentioned prior art solutions have the following defects. In the above-mentioned technical solutions, when crack detection is performed on areas with insufficient light on the building's exterior wall, insufficient light will cause the photos taken by the camera to be unclear, resulting in unclear cracks, affecting the accuracy of the detection personnel in detecting cracks on the building's exterior wall. In addition, there is no function to mark the crack areas, which makes it inconvenient for later maintenance personnel to accurately locate the cracks and repair them. Therefore, a building exterior wall crack detection drone with convenient lighting and fill light is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a building exterior wall crack detection drone with convenient lighting and fill light, aiming to improve the problem in the prior art of building exterior wall crack detection that the photos taken by the camera are not clear, resulting in unclear cracks and the detected crack areas cannot be marked.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The invention comprises an unmanned aerial vehicle body, a fixing frame is fixedly installed on the top of the unmanned aerial vehicle body, a camera is fixedly installed on the top of the unmanned aerial vehicle body, a double-headed motor is fixedly installed on the top of the fixing frame, a positive direction screw is fixedly connected to the left side of the double-headed motor, a reverse direction screw is fixedly connected to the right side of the double-headed motor, movable rods are threadedly connected to the surfaces of the positive direction screw and the reverse direction screw, a connecting rod is slidably connected to the outer side of the movable rod, a rotating frame is movably connected to both sides of the top of the fixing frame, an adjustable fill light is movably connected to the inside of the rotating frame, the back side of the adjustable fill light is movably connected to the front side of the connecting rod, a fixing rod is threadedly connected to the top of the fixing frame, a fixed fill light is fixedly connected to the top of the fixing rod, and a marking component is fixedly installed on the bottom of the unmanned aerial vehicle body.

[0008] As a further description of the above technical solution:

[0009] The marking assembly includes a fixed box, which is fixedly installed on the bottom of the drone body, a partition plate is fixedly connected to the interior of the fixed box in a transverse direction, an injection pipe is connected to the front of the partition plate, a piston is connected to the interior of the injection pipe in a longitudinal sliding manner, both sides of the injection pipe are connected to infusion pipes through a one-way valve, a movable block is movably sleeved on the back of the piston, a fixed block is movably connected to the back of the movable block, a rotating block is movably connected to the right side of the fixed block, a motor 2 is fixedly connected to the right side of the rotating block, and the right side of the motor 2 is fixedly installed to the right side of the inner wall of the fixed box.

[0010] As a further description of the above technical solution:

[0011] The front side of the spray pipe penetrates through the front side of the fixing box, and the front side of the spray pipe is threadedly connected with a spray head.

[0012] As a further description of the above technical solution:

[0013] A limiting U-plate is arranged at the bottom of the nozzle, and the top of the limiting U-plate is fixedly mounted to the bottom of the drone body.

[0014] As a further description of the above technical solution:

[0015] A limiting bottom plate is fixedly mounted on the top of the unmanned aerial vehicle body, and the limiting bottom plate is located at the bottom of the camera.

[0016] As a further description of the above technical solution:

[0017] The top of the fixing frame is threadedly connected with a pushing rod, and the pushing rod is located on the top of the camera.

[0018] As a further description of the above technical solution:

[0019] The bottom of the push rod is fixedly connected with a clamping block, and the clamping block is located on the back of the camera.

[0020] As a further description of the above technical solution:

[0021] The top of the push rod is fixedly connected with a rotating block, and the rotating block is polygonal.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, a double-headed motor drives the forward direction screw rod and the reverse direction screw rod as well as the mutual cooperation of the movable rod and the connecting rod structure to drive the adjustment fill light and the rotating frame to rotate on the fixed frame to adjust the fill light. When the camera is detecting cracks on the exterior wall of the building, the adjustment fill light can adjust the shooting angle of the camera according to the fill light area to provide fill light illumination, so that the cracks photographed by the camera are clearly illuminated.

[0024] 2. In the utility model, with the mutual cooperation of the motor 2, the piston, the movable block, the fixed block and the rotating block, the piston can be pushed to squeeze the inside of the injection tube, so that the marking liquid in the infusion tube entering the injection tube is pushed by the high pressure and then sprayed out from the nozzle to mark the cracks detected by the camera, so as to solve the problem that the cracks detected by the camera cannot be marked, which is inconvenient for later repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of a drone for detecting cracks in building exterior walls that is convenient for lighting and supplementary lighting proposed by the utility model;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a fixing box of a drone for detecting cracks in building exterior walls, which is convenient for lighting and supplementary lighting, proposed by the utility model;

[0027] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a fixing box of a building exterior wall crack detection drone that is convenient for lighting and supplementary lighting proposed by the utility model;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of a movable rod of a drone for detecting cracks in building exterior walls that is convenient for lighting and supplementing light, proposed by the utility model;

[0029] Figure 5 This is a three-dimensional structural schematic diagram of an active block of a drone for detecting cracks in building exterior walls that is convenient for lighting and supplementary lighting, as proposed by the utility model.

[0030] Legend:

[0031] 1. Unmanned aerial vehicle body; 2. Fixed frame; 3. Camera; 4. Double-headed motor; 5. Forward direction screw; 6. Reverse direction screw; 7. Movable rod; 8. Connecting rod; 9. Rotating frame; 10. Adjust fill light; 11. Fixed rod; 12. Fixed fill light; 13. Fixed box; 14. Partition plate; 15. Injection tube; 16. Piston; 17. Infusion tube; 18. Movable block; 19. Fixed block; 20. Rotating block; 21. Motor 2; 22. Nozzle; 23. Limit U plate; 24. Limit bottom plate; 25. Push rod; 26. Clamping block; 27. Friction block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-3The utility model provides an embodiment: a building exterior wall crack detection drone that is convenient for lighting and supplementary lighting, including a drone body 1, a fixed frame 2 is fixedly installed on the top of the drone body 1, a camera 3 is fixedly installed on the top of the drone body 1, a double-headed motor 4 is fixedly installed on the top of the fixed frame 2, a positive direction screw rod 5 is fixedly connected to the left side of the double-headed motor 4, and a reverse direction screw rod 6 is fixedly connected to the right side of the double-headed motor 4. The double-headed motor 4 can synchronously drive the positive direction screw rod 5 and the reverse direction screw rod 6 to rotate synchronously, and synchronously drive two movable rods 7 to move. The surfaces of the positive direction screw 5 and the reverse direction screw 6 are both threadedly connected with movable rods 7, and the outer side of the movable rod 7 is slidably connected with a connecting rod 8 through a hole groove. The movable rod 7 slides inside the connecting rod 8 through the hole groove. After the movable rod 7 moves, the connecting rod 8 can be pulled to move, so that the rotating frame 9 is rotated on the top of the fixed frame 2 after being toggled by the movable rod 7 and the connecting rod 8 to adjust the lighting angle, so that the lighting range is adjusted according to the auxiliary lighting needs, and both sides of the top of the fixed frame 2 The rotating frame 9 is movably connected to the adjusting fill light 10 through a metal rod (not marked). The metal rod can rotate the rotating frame 9 to adjust the fill light 10 while it is rotating. The adjusting fill light 10 is movably connected inside the rotating frame 9. The rotating frame 9 can support the adjusting fill light 10, so that the connecting rod 8 drives the adjusting fill light 10 to rotate and adjust the illumination angle, so that the adjusting fill light 10 is adjusted to illuminate a darker area. The back of the adjusting fill light 10 is movably connected to the front of the connecting rod 8. The top of the fixing frame 2 is threadedly connected to a fixing rod 11, and the fixing rod 11 can be threadedly rotated on the fixing frame 2 to actively adjust the illumination range of the fixed fill light 12, so that the illumination range of the fixed fill light 12 is fixed to the shooting range of the camera 3. The top of the fixing rod 11 is fixedly connected to the fixed fill light 12, and a marking component is fixedly installed on the bottom of the unmanned vehicle body 1, so as to facilitate the adjustment of the fill light to illuminate the darker area of ​​the building exterior wall crack detection, so that the crack shooting is clearer, so that the operator can accurately judge whether the building exterior wall is cracked.

[0034] Reference Figure 3-5The marking component includes a fixed box 13, which is fixedly installed at the bottom of the unmanned aerial vehicle body 1. A partition plate 14 is fixedly connected to the interior of the fixed box 13 in a transverse direction. The partition plate 14 divides the internal space of the fixed box 13, so that the space between the partition plate 14 and the motor 21 can be stored in the inner cavity of the fixed box 13. The marking liquid (waterproof ink) absorbed by the infusion tube 17 can be stored. The front of the partition plate 14 is connected to the injection tube 15. The front of the injection tube 15 penetrates to the front of the fixed box 13. The front of the injection tube 15 is threadedly connected to the nozzle 22. The interior of the injection tube 15 is longitudinally slidably connected to the piston 16. The piston 16 slides inside the injection tube 15 to squeeze and spray the marking liquid inside. Both sides of the injection tube 15 are connected to the infusion tube 17 through a one-way valve, which can unidirectionally circulate the marking liquid inside the injection tube 15. The infusion tube 17 absorbs the marking liquid in the inner cavity of the fixed box 13 into the interior of the injection tube 15 A limiting U-plate 23 is provided at the bottom of the nozzle 22, and the limiting U-plate 23 can limit the use position of the nozzle 22, so that the stability of the nozzle 22 during use is effectively improved. The top of the limiting U-plate 23 is fixedly installed with the bottom of the unmanned aerial vehicle body 1, and the back of the piston 16 is movably sleeved with a movable block 18, and the back of the movable block 18 is movably connected with a fixed block 19, and the right side of the fixed block 19 is movably connected with a rotating block 20, and the right side of the rotating block 20 is fixedly connected with a motor 21. After the motor 21 drives the rotating block 20, the movable block 18 is pulled through the fixed block 19 to reciprocate the piston 16, so that the piston 16 slides inside the injection pipe 15, and the marking liquid inside the injection pipe 15 is squeezed and sprayed from the nozzle 22 to mark the cracks in the exterior wall of the building. The right side of the motor 21 is fixedly installed with the right side of the inner wall of the fixed box 13, so that the detected crack area can be marked for the effect of later repair.

[0035] Reference Figure 1-3 A limiting bottom plate 24 is fixedly installed on the top of the unmanned aerial vehicle body 1, and the limiting bottom plate 24 is located at the bottom of the camera 3. The limiting bottom plate 24 can limit the camera 3 so that the camera 3 is limited to the bottom of the fixing frame 2 for use; a pushing rod 25 is threadedly connected to the top of the fixing frame 2, and the pushing rod 25 is located at the top of the camera 3; a clamping block 26 is fixedly connected to the bottom of the pushing rod 25, and the clamping block 26 is located on the back of the camera 3; a friction block 27 is fixedly connected to the top of the pushing rod 25, and the friction block 27 is a polygon. After the rotating block 20 rotates the pushing rod 25, the pushing rod 25 rotates and pushes the clamping block 26 to move down and then clamp on the back of the camera 3, so that the front, back, left and right of the camera 3 are all limited to the top of the unmanned aerial vehicle body 1 for use, so that the camera 3 can be conveniently fixed on the unmanned aerial vehicle body 1 for later replacement.

[0036] Working principle: when the unmanned aerial vehicle 1 drives the camera 3 to detect cracks outside the building's exterior wall, the fixed fill light 12 can provide fill light in a specified direction to the shooting area of ​​the camera 3, so that the camera 3 can take clear photos of cracks in the darker shooting area. After the double-headed motor 4 is started, the adjustable fill light 10 can adjust the fill light area according to the needs of the crack shooting area of ​​the camera 3. The positive direction screw 5 and the reverse direction screw 6 at both ends of the double-headed motor 4 rotate synchronously, and the movable rods 7 on the surfaces of the positive direction screw 5 and the reverse direction screw 6 are driven to rotate and adjust the adjustable fill light 10 and the rotating frame 9 connected by the connecting rod 8 in different directions, so that the rotating frame 9 rotates on the fixed frame 2, so that the fill light area of ​​the adjustable fill light 10 is adjusted, and then the fill light area can be adjusted to shoot according to the needs of the crack shooting area, so that when the camera 3 detects and shoots cracks in the darker area of ​​the building's exterior wall, the fill light area has sufficient light source, so that the crack shooting is clearer, thereby achieving the purpose of facilitating the adjustment of the fill light to the crack detection of the building's exterior wall. Area, so that the crack shooting is clearer, so that the operator can accurately judge whether the building exterior wall is cracked. When the camera 3 detects a crack and needs to mark the crack area, the motor 21 is started to drive the rotating block 20 to rotate and pull the fixed block 19 to rotate. After the fixed block 19 is pulled, the movable block 18 is pulled, so that the movable block 18 pulls the piston 16 to move backward inside the injection tube 15, so that the air inside the injection tube 15 is extracted, and the infusion tube 17 connected through the one-way valve (not marked) absorbs the marking liquid stored in the inner cavity separated by the internal partition plate 14 of the fixed box 13 as the marking pen ink and transports it to the inside of the injection tube 15. After the piston 16 is pulled by the movable block 18 and resets inside the injection tube 15, the air and marking liquid inside the injection tube 15 are pushed to be ejected from the nozzle 22 at high pressure, and the crack area detected by the camera 3 is marked, so that it is convenient for the repair personnel to accurately find the crack area for repair, so that the detected crack area can be marked for the effect of later repair.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drone for detecting cracks in building exterior walls that is convenient for lighting and supplementing light, comprising a drone body (1), a fixing frame (2) fixedly mounted on the top of the drone body (1), and a camera (3) fixedly mounted on the top of the drone body (1), characterized in that: A double-headed motor (4) is fixedly installed on the top of the fixing frame (2), a positive direction screw rod (5) is fixedly connected to the left side of the double-headed motor (4), a negative direction screw rod (6) is fixedly connected to the right side of the double-headed motor (4), movable rods (7) are threadedly connected to the surfaces of the positive direction screw rod (5) and the negative direction screw rod (6), and a connecting rod (8) is slidably connected to the outer side of the movable rod (7), both sides of the top of the fixing frame (2) are movably connected to rotating frames (9), an adjustable fill light (10) is movably connected inside the rotating frame (9), and the back side of the adjustable fill light (10) is movably connected to the front side of the connecting rod (8), a fixed rod (11) is threadedly connected to the top of the fixing frame (2), and a fixed fill light (12) is fixedly connected to the top of the fixed rod (11), and a marking component is fixedly installed on the bottom of the unmanned aerial vehicle body (1).

2. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 1 is characterized in that: The marking assembly comprises a fixed box (13), the fixed box (13) being fixedly mounted on the bottom of the unmanned aerial vehicle (1), a partition plate (14) being fixedly connected to the interior of the fixed box (13) in a transverse manner, a spray tube (15) being connected to the front of the partition plate (14), a piston (16) being slidably connected to the interior of the spray tube (15) in a longitudinal direction, both sides of the spray tube (15) being connected to an infusion tube (17) via a one-way valve, a movable block (18) being movably sleeved on the back of the piston (16), a fixed block (19) being movably connected to the back of the movable block (18), a rotating block (20) being movably connected to the right side of the fixed block (19), a motor 2 (21) being fixedly connected to the right side of the rotating block (20), and a right side of the motor 2 (21) being fixedly mounted to the right side of the inner wall of the fixed box (13).

3. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 2 is characterized in that: The front side of the injection pipe (15) penetrates through the front side of the fixing box (13), and the front side of the injection pipe (15) is threadedly connected with a nozzle (22).

4. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 3 is characterized in that: A limiting U-plate (23) is provided at the bottom of the nozzle (22), and the top of the limiting U-plate (23) is fixedly mounted to the bottom of the drone body (1).

5. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 1, characterized in that: A limiting bottom plate (24) is fixedly mounted on the top of the unmanned aerial vehicle body (1), and the limiting bottom plate (24) is located at the bottom of the camera (3).

6. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 1, characterized in that: A push rod (25) is threadedly connected to the top of the fixing frame (2), and the push rod (25) is located on the top of the camera (3).

7. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 6 is characterized in that: A clamping block (26) is fixedly connected to the bottom of the push rod (25), and the clamping block (26) is located on the back of the camera (3).

8. The drone for detecting cracks in exterior walls of buildings that is convenient for lighting and supplementary lighting according to claim 7 is characterized in that: A friction block (27) is fixedly connected to the top of the push rod (25), and the friction block (27) is polygonal.

Citation Information

Patent Citations

  • Building external wall crack detection device

    CN217586949U