Building external wall crack detection device

By integrating infrared and high-definition camera modules into the building exterior wall crack detection device, and using a micro-pump to spray paint to mark the cracks, the problem of maintenance personnel being unable to quickly locate cracks has been solved, thus improving the practicality of the detection device.

CN224095719UActive Publication Date: 2026-04-07SHANDONG MINGCHENG TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

When maintenance personnel are repairing cracks in the exterior walls of buildings, they are unable to quickly locate the cracks on the actual wall surface, which limits the practicality of the detection device.

Method used

A device for detecting cracks in building exterior walls was designed. The device is equipped with cameras with infrared and high-definition camera modules, which can capture temperature differences on the surface of the building exterior walls and mark the location of cracks. Paint is sprayed onto the cracks for marking using a micro pump.

Benefits of technology

It enables rapid and accurate location of cracks in building exterior walls, facilitating maintenance by personnel and significantly improving the practicality of the detection device.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a building exterior wall crack detection device, which relates to the technical field of unmanned aerial vehicles and comprises a machine body, machine arms are fixedly connected to two sides of the surface of the machine body respectively, a camera is arranged at one end of the machine body, and a marking device is arranged at the bottom end of the machine body. The marking device comprises a micro pump and a material box, the micro pump is fixed to the bottom end of the machine body, the material box is installed at one end of the machine body through an auxiliary device, and when the detection device is used, after the infrared camera module detects cracks in the building wall, the machine body can be controlled to fly to the position close to the wall and the micro pump is controlled to operate; and paint in the material box is pumped to the spray pipe through the micro pump to be sprayed out and coated on the building wall surface, and the crack position on the building outer wall is marked, so that a maintainer can quickly find the crack position when maintaining the crack on the building outer wall, and the practicability of the detection device during use is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an unmanned plane technical field especially relates to a building outer wall crack detection device. BACKGROUND

[0002] With the aggravation of the aging of the old house in the society, the housing safety problem is increasingly prominent, and the safety of the building facade is particularly important. When detecting the cracks of the building outer wall, an unmanned plane equipped with an infrared camera and a high-definition camera is usually used. The infrared camera detects cracks by capturing temperature differences on the surface of the building outer wall, and the high-definition camera captures images of the wall surface.

[0003] When using an unmanned plane to detect cracks on the building wall, the data is usually transmitted to the ground operator through the information transmission mechanism inside the unmanned plane after detecting the wall cracks. However, when maintenance personnel maintain and handle the wall cracks, they need to compare the data information and the wall entity appearance, which cannot quickly locate the crack position on the wall entity, resulting in low practicality of the detection device when in use. INVENTION CONTENTS

[0004] The utility model aims at solving the problem that when maintenance personnel maintain and handle the wall cracks, they need to compare the data information and the wall entity appearance, which cannot quickly locate the crack position on the wall entity, resulting in low practicality of the detection device when in use, and proposes a building outer wall crack detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a building outer wall crack detection device, comprising a machine body, the surface of the machine body is fixedly connected with a machine arm on both sides, a paddle is rotatably arranged at one end of the machine arm away from the machine body, a camera is arranged at one end of the machine body, the camera is internally integrated with an infrared camera module and a high-definition camera module, and a marking device for marking the cracks on the building outer wall is arranged at the bottom end of the machine body.

[0006] The above-mentioned components achieve the following effects: when using the detection device to detect the cracks on the building outer wall, the paddle at one end of the machine arm outside the machine body is rotated by the remote control equipment, so that the machine body flies to high altitude. The infrared camera module inside the camera detects cracks by capturing temperature differences on the surface of the building outer wall. Since the thermal radiation characteristics of the cracks are different from those of the surrounding intact wall, the infrared camera module can sensitively capture such differences and convert them into image information, which is then transmitted to the remote control equipment. The high-definition camera module can capture the real image of the building wall and send the image to the remote control equipment.

[0007] Preferably, the marking device comprises a micro-pump fixed at the bottom end of the body and a cartridge mounted at one end of the body through an auxiliary device, the bottom end of the cartridge is connected with one end of the micro-pump through a pipeline, the top end of the cartridge is fixedly connected with a feeding pipe, the surface of the feeding pipe is threadedly connected with a threaded cap, the other end of the micro-pump is connected with a spray pipe through a pipeline, and the spray pipe is fixed at the bottom end of the body.

[0008] The above-mentioned components achieve the effects that: by arranging the spray pipe, before using the detection device, the threaded cap outside the feeding pipe at the top end of the cartridge is opened, paint is added into the interior of the cartridge through the feeding pipe, then the cartridge is mounted at one side of the body through the auxiliary device, and the pipeline at the bottom end of the cartridge is butted against the nozzle at one end of the micro-pump, when using the detection device, when the infrared camera module detects the cracks on the building wall, the body is controlled to fly close to the wall through the remote control equipment, the high-definition camera module inside the camera is used to shoot and observe the image information of the building wall, then the micro-pump at the bottom end of the body is operated, the paint in the cartridge is pumped to the spray pipe through the micro-pump, and is sprayed on the building wall through one end of the spray pipe, so that the position of the cracks on the building outer wall is marked, which facilitates the maintenance personnel to quickly find the position of the cracks when maintaining the cracks on the building outer wall, and greatly improves the practicability when the detection device is used.

[0009] Preferably, the bottom end of the body is fixedly connected with a groove rod, the inner wall of the groove rod is slidably connected with a sliding rod, one end of the sliding rod is provided with a first spring installed in the interior of the groove rod for limiting the position of the sliding rod in the groove rod, and the end of the sliding rod away from the groove rod is fixedly connected with a blocking rod.

[0010] The above-mentioned components achieve the effects that: when the paint is sprayed on the building wall through the spray pipe by the micro-pump, the body can be controlled to fly close to the wall, the blocking rod at one end of the sliding rod abuts against the wall, the position of the paint can be limited through the blocking rod when the sprayed paint flows down on the wall, the paint will not flow down within a certain time, which facilitates the paint to solidify into a shape to better mark the position of the cracks, and when the blocking rod contacts the wall, the sliding rod is pushed to slide in the inner wall of the groove rod and compress the first spring, the blocking rod can always adhere to the wall within a certain range through the first spring pushing the sliding rod, which adapts to the small swing of the body when flying.

[0011] Preferably, the top end of the blocking rod is fixedly connected with a convex rod, and the top end edge of the convex rod is a bevel.

[0012] The above-mentioned components achieve the effects that: when one side of the blocking rod adheres to the building wall through the convex rod, the paint flowing down enters the surface of the convex rod and is not easy to enter between the blocking rod and the wall.

[0013] Preferably, the sliding rod is fixedly connected with positioning blocks at two sides respectively, and the positioning blocks slide at two sides of the inner wall of the groove rod.

[0014] The effect achieved by the above-mentioned components is that when the sliding rod moves inside the slot rod, the positioning blocks on both sides slide along the inner walls of the slot rod, and the angle between the sliding rod and the slot rod is further limited by the positioning blocks, so as to avoid the angle between the sliding rod and the slot rod from being skewed and causing the angle of the blocking rod to be skewed.

[0015] Preferably, the auxiliary device comprises two slot blocks, one side of the two slot blocks is fixedly connected with one side of the material box, two sliding grooves are formed in the interiors of the slot blocks, sliding blocks are slidably connected with the inner walls of the sliding grooves, second springs are arranged at one ends of the sliding blocks and installed in the interiors of the sliding grooves to limit the positions of the sliding blocks in the interiors of the sliding grooves, and two T-shaped grooves are formed in one end of the machine body.

[0016] The effect achieved by the above-mentioned components is that when the material box is installed, the side of the material box provided with the slot blocks is directed towards the machine body, one ends of the sliding blocks at the upper and lower ends of the two slot blocks are in contact with the upper and lower ends of the T-shaped grooves on the surface of the machine body, the material box is pressed, the sliding blocks slide into the interiors of the sliding grooves and compress the second springs, and after the slot blocks are inserted into the interiors of the T-shaped grooves, the second springs that are compressed restore their original states and push the sliding blocks to move outward to be clamped in the interiors of the T-shaped grooves, thereby fixing the positions of the slot blocks in the interiors of the T-shaped grooves and the position of the material box on one side of the machine body, and the material box is installed on one side of the machine body.

[0017] Preferably, two rectangular grooves are formed in one side of the slot block, and protrusions are fixedly connected with one sides of the sliding blocks and slide along the inner walls of the rectangular grooves.

[0018] The effect achieved by the above-mentioned components is that when the material box needs to be removed, the protrusions are pushed on one side of the slot block to slide along the inner walls of the rectangular grooves, the sliding blocks are controlled to move towards the interiors of the sliding grooves and compress the second springs, and then the material box is controlled to move away from the machine body by pinching the two protrusions, so that the material box can be removed.

[0019] Preferably, the edge of one end of the sliding block away from the second spring is an arc surface.

[0020] The effect achieved by the above-mentioned components is that when the arc surface of the sliding block is in contact with the upper and lower ends of the inner walls of the T-shaped grooves, the sliding block is more easily extruded to move into the interior of the sliding groove.

[0021] Compared with the prior art, the advantages and positive effects of the utility model lie in that:

[0022] The utility model discloses a mark device is provided with, when using detection device, after infrared camera module detects the crack on the building wall, can control the body flight to be close to the wall and control micro -pump operation, through micro -pump draws the paint in the material box to the spray pipe and sprays on the building wall, marks the crack position on the building outer wall, and the maintenance personnel is convenient to the crack on the building outer wall and maintains the position of quick search crack when, greatly promotes the practicality when detection device uses. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the body of the utility model;

[0025] Figure 3 It is the partial section three-dimensional structure schematic diagram of the body of the utility model;

[0026] Figure 4 It is the partial section three-dimensional structure schematic diagram of the groove block of the utility model;

[0027] Figure 5 It is the three-dimensional structure schematic diagram of the groove rod of the utility model.

[0028] Legend: 1, body, 2, mark device, 3, auxiliary device, 4, arm, 5, camera, 21, micro -pump, 22, material box, 23, feeding pipe, 24, spray pipe, 25, groove rod, 26, sliding rod, 27, blocking rod, 28, first spring, 29, convex rod, 210, positioning block, 31, groove block, 32, sliding groove, 33, second spring, 34, sliding block, 35, T-shaped slot, 36, rectangular slot, 37, protruding block. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figures 1-2As shown, a building outer wall crack detection device, including the body 1, the surface of the body 1 is fixedly connected with the arm 4 on both sides, the end of the arm 4 away from the body 1 is rotatably provided with a paddle, one end of the body 1 is provided with a camera 5, the inside of the camera 5 is integrated with an infrared camera module and a high-definition camera module, the bottom end of the body 1 is provided with a marking device 2 which can mark the cracks on the building outer wall, when the detection device is used to detect the cracks on the building outer wall, the paddle at one end of the arm 4 outside the body 1 is controlled to rotate by the remote control equipment, so that the body 1 flies to high altitude, the temperature difference of the surface of the building outer wall is captured by the infrared camera module inside the camera 5 to detect the cracks, because the thermal radiation characteristics at the crack are different from the surrounding complete wall, the infrared camera module can sensitively capture the difference and convert it into image information, and then the image information is transmitted to the remote control equipment, and the real image of the building wall surface can be captured by the high-definition camera module and sent to the remote control equipment.

[0030] Referring to Figures 1-3 As shown, in the present embodiment: the marking device 2 includes a micro pump 21 and a cartridge 22, the micro pump 21 is fixed at the bottom end of the body 1, the cartridge 22 is installed at one end of the body 1 through the auxiliary device 3, the bottom end of the cartridge 22 is connected with one end of the micro pump 21 through a pipeline, the top end of the cartridge 22 is fixedly connected with a filling pipe 23, the surface of the filling pipe 23 is threadedly connected with a threaded cap, the other end of the micro pump 21 is connected with a spray pipe 24 through a pipeline, the spray pipe 24 is fixed at the bottom end of the body 1, by arranging the spray pipe 24, before using the detection device, the threaded cap outside the filling pipe 23 at the top end of the cartridge 22 is opened, paint is added into the inside of the cartridge 22 through the filling pipe 23, then the cartridge 22 is installed at one side of the body 1 through the auxiliary device 3, and the pipeline at the bottom end of the cartridge 22 is butt jointed with the nozzle at one end of the micro pump 21, when the infrared camera module detects the cracks on the building wall surface, the body 1 is controlled to fly close to the wall surface by the remote control equipment, the image information of the building wall surface is observed by the high-definition camera module inside the camera 5, then the micro pump 21 at the bottom end of the body 1 is operated, the paint in the inside of the cartridge 22 is pumped to the spray pipe 24 through the micro pump 21, and then sprayed on the building wall surface through one end of the spray pipe 24, so as to mark the position of the cracks on the building outer wall, which facilitates the maintenance personnel to quickly find the position of the cracks when maintaining the cracks on the building outer wall, and greatly improves the practicability of the detection device when used.

[0031] Referring to Figures 2-5As shown, in the embodiment: the bottom end of the body 1 is fixedly connected with a slot rod 25, the inner wall of the slot rod 25 is slidably connected with a sliding rod 26, one end of the sliding rod 26 is provided with a first spring 28, the first spring 28 is installed in the interior of the slot rod 25 for limiting the position of the sliding rod 26 in the interior of the slot rod 25, the end of the sliding rod 26 away from the slot rod 25 is fixedly connected with a blocking rod 27, when the paint is sprayed on the building wall by the micro pump 21 through the spray pipe 24, the body 1 can be controlled to fly close to the wall, the blocking rod 27 at one end of the sliding rod 26 abuts against the wall, the position of the sprayed paint can be limited by the blocking rod 27 when the paint flows down on the wall, so that the paint does not flow downward within a certain time, the paint is solidified to better mark the crack position, the blocking rod 27 pushes the sliding rod 26 to slide in the inner wall of the slot rod 25 and compresses the first spring 28 when the blocking rod 27 contacts the wall, the blocking rod 27 can always adhere to the wall within a certain range by the sliding rod 26 pushed by the first spring 28, and small shaking of the body 1 during flight is adapted.

[0032] Referring to Figures 2-5 As shown, in the embodiment: the top end of the blocking rod 27 is fixedly connected with a convex rod 29, the top end edge of the convex rod 29 is a bevel, when one side of the blocking rod 27 adheres to the building wall by setting the convex rod 29, the paint flowing down on the surface of the convex rod 29 is not easy to enter between the blocking rod 27 and the wall, the two sides of the sliding rod 26 are respectively fixedly connected with positioning blocks 210, the positioning blocks 210 slide on the two sides of the inner wall of the slot rod 25, the positioning blocks 210 on the two sides of the sliding rod 26 slide on the two sides of the inner wall of the slot rod 25 when the sliding rod 26 moves in the interior of the slot rod 25, the angle between the sliding rod 26 and the slot rod 25 can be further limited by the positioning blocks 210, and the angle between the sliding rod 26 and the slot rod 25 is as much as possible to avoid being skewed to cause the angle of the blocking rod 27 to be skewed.

[0033] Referring to Figure 2-4As shown, in the embodiment: the auxiliary device 3 includes two groove blocks 31, one side of the two groove blocks 31 is fixedly connected with one side of the material box 22, two sliding grooves 32 are opened in the interior of the groove block 31, a sliding block 34 is slidably connected with the inner wall of the sliding groove 32, a second spring 33 is arranged at one end of the sliding block 34, and the second spring 33 is installed in the interior of the sliding groove 32 for limiting the position of the sliding block 34 in the interior of the sliding groove 32. One end of the body 1 is provided with two T-shaped grooves 35. When the material box 22 is installed, the side of the material box 22 provided with the groove block 31 is arranged towards the body 1, the sliding block 34 at the upper and lower ends of the two groove blocks 31 is in contact with the upper and lower ends of the T-shaped groove 35 on the surface of the body 1, the material box 22 is pressed, the sliding block 34 slides into the interior of the sliding groove 32 and compresses the second spring 33, after the groove block 31 is inserted into the interior of the T-shaped groove 35, the second spring 33 which is compressed restores to the original state and pushes the sliding block 34 to move outward to be clamped in the interior of the T-shaped groove 35, the position of the groove block 31 in the interior of the T-shaped groove 35 and the position of the material box 22 on one side of the body 1 are fixed, and the material box 22 is installed on one side of the body 1.

[0034] Referring to Figure 2-4 As shown, in the embodiment: one side of the groove block 31 is provided with two rectangular grooves 36, one side of the sliding block 34 is fixedly connected with a protruding block 37, the protruding block 37 slides on the inner wall of the rectangular groove 36, when the material box 22 needs to be removed, the protruding block 37 is pushed on one side of the groove block 31 to slide on the inner wall of the rectangular groove 36, the sliding block 34 is controlled to move in the direction of the interior of the sliding groove 32 and compress the second spring 33, then the two protruding blocks 37 are pinched to control the material box 22 to move away from the body 1, and the material box 22 can be removed, the edge of the end of the sliding block 34 away from the second spring 33 is an arc surface, and when the arc surface of the sliding block 34 is in contact with the upper and lower ends of the inner wall of the T-shaped groove 35, the sliding block 34 is more easily extruded to move into the interior of the sliding groove 32.

[0035] Working principle: when the detection device is used to detect the cracks on the outer wall of the building, first open the threaded cap outside the top end of the material box 22, add paint to the inside of the material box 22 through the material box 22, then set the side of the material box 22 provided with the groove block 31 towards the body 1, make the one end of the slider 34 at the upper and lower ends of the two groove blocks 31 contact with the upper and lower ends of the T-shaped groove 35 on the surface of the body 1, press the material box 22, make the slider 34 slide into the inside of the sliding groove 32 and compress the second spring 33, after the groove block 31 is inserted into the inside of the T-shaped groove 35, the second spring 33 is restored to its original state and pushes the slider 34 to move outward to be clamped in the inside of the T-shaped groove 35, fix the position of the groove block 31 in the inside of the T-shaped groove 35 and the position of the material box 22 on one side of the body 1, install the material box 22 on one side of the body 1, then control the rotation of the paddle at one end of the arm 4 outside the body 1 through the remote control device, make the body 1 fly to high altitude, capture the temperature difference on the surface of the outer wall of the building through the infrared camera module in the inside of the camera 5 to detect the cracks, because the thermal radiation characteristics of the cracks are different from those of the surrounding intact wall, the infrared camera module can sensitively capture the difference and convert it into image information, then transmit the image information to the remote control device, the real image of the building wall surface can be captured through the high-definition camera module and sent to the remote control device, meanwhile, the body 1 can be controlled to fly close to the wall surface through the remote control device, the building wall image information can be observed by shooting through the high-definition camera module in the inside of the camera 5, then the miniature pump 21 at the bottom end of the remote control body 1 operates, the paint in the inside of the material box 22 is pumped to the spray pipe 24 through the miniature pump 21, and sprayed on the building wall through one end of the spray pipe 24 to mark the position of the cracks on the outer wall of the building.

[0036] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical contents to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application shall fall within the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "link" should be understood in a broad sense. For example, it can be fixed connection, detachable connection or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A device for detecting cracks in building exterior walls, comprising a body (1), characterized in that: The machine body (1) is fixedly connected to two sides of the surface of the machine arm (4). The end of the machine arm (4) away from the machine body (1) is equipped with a propeller. A camera (5) is provided at one end of the machine body (1). The camera (5) integrates an infrared camera module and a high-definition camera module. A marking device (2) is provided at the bottom of the machine body (1) to mark cracks on the exterior wall of the building.

2. The building exterior wall crack detection device according to claim 1, characterized in that: The marking device (2) includes a micro pump (21) and a material box (22). The micro pump (21) is fixed at the bottom of the machine body (1). The material box (22) is installed at one end of the machine body (1) through an auxiliary device (3). The bottom end of the material box (22) is connected to one end of the micro pump (21) through a pipeline. The top end of the material box (22) is fixedly connected to a feeding pipe (23). The surface of the feeding pipe (23) is threaded with a threaded cap. The other end of the micro pump (21) is connected to a spray pipe (24) through a pipeline. The spray pipe (24) is fixed at the bottom of the machine body (1).

3. The building exterior wall crack detection device according to claim 2, characterized in that: The bottom end of the body (1) is fixedly connected to a groove rod (25), and a slide rod (26) is slidably connected to the inner wall of the groove rod (25). A first spring (28) is provided at one end of the slide rod (26). The first spring (28) is installed inside the groove rod (25) to limit the position of the slide rod (26) inside the groove rod (25). A stop rod (27) is fixedly connected to the end of the slide rod (26) away from the groove rod (25).

4. The building exterior wall crack detection device according to claim 3, characterized in that: The top of the stop bar (27) is fixedly connected to a protruding rod (29), and the top edge of the protruding rod (29) is a slope.

5. The building exterior wall crack detection device according to claim 3, characterized in that: Positioning blocks (210) are fixedly connected to both sides of the slide rod (26), and the positioning blocks (210) slide on both sides of the inner wall of the groove rod (25).

6. The building exterior wall crack detection device according to claim 2, characterized in that: The auxiliary device (3) includes two slot blocks (31), one side of which is fixedly connected to one side of the material box (22). Two sliding grooves (32) are opened inside the slot blocks (31). A slider (34) is slidably connected to the inner wall of the sliding groove (32). A second spring (33) is provided at one end of the slider (34). The second spring (33) is installed inside the sliding groove (32) to limit the position of the slider (34) inside the sliding groove (32). Two T-shaped grooves (35) are opened at one end of the machine body (1).

7. The building exterior wall crack detection device according to claim 6, characterized in that: Two rectangular grooves (36) are provided on one side of the groove block (31), and a protrusion (37) is fixedly connected to one side of the slider (34). The protrusion (37) slides on the inner wall of the rectangular groove (36).

8. The building exterior wall crack detection device according to claim 7, characterized in that: The edge of the slider (34) away from the second spring (33) is an arc-shaped surface.