Dam crack detection equipment

Abstract

The utility model discloses dam crack detection equipment. The dam crack detection equipment comprises a trolley body and a rope transmission system, the trolley body comprises wheels, a solid shaft, a welding support, a connecting rod, a connecting rod hole, a camera base, a fixed baffle, a wireless camera, an antenna, a remote control device, an illuminating lamp and the like. The rope transmission system comprises a roller, a roller support, a fixed pulley, a rope, rope scales and the like. And the other end of the rope is connected with the trolley body. The trolley moves up and down by rotating the roller handle, the illuminating lamp is used for supplementing light, the shooting area is determined by parameters and height of the camera, and the distance of rope scales is determined by width. And photographing is carried out once every time when one unit scale is lowered, and pictures are transmitted to the computer through the antenna device in a circulating manner. Movement of the trolley is controlled through the rope transmission system device, the wireless camera shoots, and covering type detection is carried out on the dam. And the crack condition of the dam can be judged after the obtained picture is identified.

Description

Technical Field

[0001] The utility model relates to the field of dam structure health detection, in particular to a dam crack detection device. Background Art

[0002] In the process of safe maintenance of dam structures, crack detection is crucial. Traditional detection methods have some limitations. For example, visual inspection relies on human observation, which may ignore small or difficult-to-observe cracks, and a comprehensive inspection of large dams may take a lot of time and human resources. At present, drones are more often used for photography, but the photography of dams is prone to overlap or omission, making it difficult to ensure the consistency of the photographs, and it may be difficult to identify the geometric size of cracks in subsequent deep learning or image processing. In addition, the laser scanning method is expensive, and a comprehensive scan of a large dam may take a long time, and the presence of complex structures or obstacles on the dam surface may limit the effect of laser scanning.

[0003] Therefore, it is of great significance to propose a new device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, such as complex equipment structure, high cost, and unfixed shooting distance. Therefore, a dam crack detection device is proposed.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A dam crack detection device, comprising a wheel, a solid shaft, a welding bracket, a connecting rod, a connecting rod hole, a camera base, a fixed baffle, a wireless camera, an antenna, a remote control device, a fixing bolt, a thread, a lighting fixture belt, a lighting lamp, and a lighting lamp switch; a rope transmission system comprises a drum, a drum shaft, a drum handle, a drum support, a fixed pulley, a rope, and a rope scale; the wireless camera is equipped with a remote control device, which can be set to take photos at a fixed time or take photos remotely;

[0007] Wheels are symmetrically connected to both sides of the solid shaft, the two solid shafts are welded to the connecting rod, a connecting rod hole is opened on one side of the connecting rod, and the top of the two connecting rods is connected to the welding bracket by welding. The camera base is horizontally placed directly above the welding bracket and welded, and a base hole is opened in the middle of the camera base. The fixed baffle is vertically welded above the camera base and has two threads. The wireless camera is placed in the fixed baffle and connected to the fixed baffle by fixing bolts and threads. The lighting lamp is bound to both sides of the welding bracket by a lighting lamp fixing belt and is controlled by a lighting lamp switch.

[0008] As a further preferred embodiment of the present technical solution: the wireless camera is internally provided with a power supply for supplying power to the camera and a remote control device for controlling photo shooting, and an antenna is connected above for signal transmission.

[0009] As a further preferred embodiment of the present technical solution: the lighting lamps are symmetrically installed on both sides of the welding bracket and tilted inward at the same angle to provide fill light for the camera to prevent the shadows caused by the upper components from affecting the photography.

[0010] As a further preferred embodiment of the present technical solution: the rope transmission system is connected to the trolley body by means of a rope passing through a hole in a connecting rod, and controls the rise and fall of the trolley, and the rope includes rope scales at equal distances for indicating the distance the trolley body falls or rises each time.

[0011] As a further preferred embodiment of the present technical solution: the rope transmission system is connected to the trolley body by means of ropes passing through the holes of the connecting rods, and controls the rise and fall of the trolley.

[0012] As a further preferred embodiment of the technical solution: the roller is connected to the roller support by welding, the roller shaft is placed in the cylindrical roller, and is connected to the roller handle by mechanical fixation.

[0013] As a further preferred embodiment of the technical solution: there are two fixed pulleys, which are respectively welded to corresponding positions of the roller support and are used to change the direction of the force.

[0014] As a further preferred embodiment of the present technical solution: one end of the rope is connected to the drum shaft, and the other end of the rope passes around the fixed pulley and is connected to the trolley body.

[0015] Advantages of the utility model: The utility model can calculate the length and width of the photographed area through the corresponding parameters of the camera and the height from the surface of the dam, wherein the width is used to determine the distance the trolley descends each time, and the length is used to determine the horizontal movement distance, thus ensuring that the surface of the dam is photographed without omission and duplication. At the same time, since the height of the camera is fixed, the ratio of the number of crack pixels photographed to the actual crack size is also fixed, and the actual geometric size of the crack in reality can be obtained through the number of pixel values ​​in the picture, which provides convenience in subsequent deep learning or image processing. In addition, the utility model has low cost and simple structure, and provides a simpler method compared with high-cost methods such as laser scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1A magnified view of the structure of area A;

[0018] Figure 3 For the utility model Figure 1 A magnified view of the structure of region B;

[0019] Figure 4 This is a structural diagram of the trolley body of the utility model;

[0020] Figure 5 This is a shooting flow chart of the utility model.

[0021] In the figure: 10, trolley body; 11, wheels; 12, solid shaft; 13, welding bracket; 14, connecting rod; 15, connecting rod hole; 16, camera base; 17, base hole; 18, fixed baffle; 19, wireless camera; 110, antenna; 111, remote control device; 112, fixing bolt; 113, thread; 114, lighting fixture; 115, lighting; 116, lighting switch; 20, rope transmission system; 21, drum; 22, drum shaft; 23, drum handle; 24, drum support; 25, fixed pulley; 26, rope; 27, rope scale. DETAILED DESCRIPTION

[0022] 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 embodiments are only partial examples of the utility model, not all. Without making creative work, all other examples that can be obtained by ordinary technicians in this field based on the examples of the utility model belong to the protection scope of the utility model. Below I will describe the embodiments of the utility model in detail in combination with the drawings.

[0023] See also Figure 1-4 The utility model provides a technical solution: a dam crack detection device, including a trolley body 10 and a rope transmission system 20, the trolley body 10 includes wheels 11, a solid shaft 12, a welding bracket 13, a connecting rod 14, a connecting rod hole 15, a camera base 16, a base hole 17, a fixed baffle 18, a wireless camera 19, an antenna 110, a remote control device 111, a fixing bolt 112, a thread 113, a lighting fixture belt 114, a lighting 115, and a lighting switch 116.

[0024] In this embodiment, specifically: wheels 11 are symmetrically connected to both sides of the solid shaft 12, the two solid shafts 12 are welded to the connecting rod 14, a connecting rod hole 15 is opened on one side of the connecting rod 14, the top of the two connecting rods 14 is connected to the welding bracket 13 by welding, the camera base 16 is horizontally placed directly above the welding bracket 13 and welded, a base hole 17 is opened in the middle of the camera base 16, the fixed baffle 18 is vertically welded above the camera base 16, and has two threads 113, the wireless camera 19 is placed in the fixed baffle 18, and is connected to the fixed baffle 18 by fixing bolts 112 and threads 113, the lighting lamp 115 is bound to both sides of the welding bracket 13 by the lighting lamp fixing belt 114, and is controlled to be on and off by the lighting lamp switch 116.

[0025] In this embodiment, specifically: the wireless camera 19 is internally equipped with a power supply for powering the camera and a remote control device 111 for controlling the taking of photos, and an antenna 110 is connected above for signal transmission.

[0026] In this embodiment, specifically: the lighting lamps (115) are symmetrically installed on both sides of the welding bracket (13) and tilted inward at the same angle to provide supplementary light for the camera to prevent the shadows caused by the upper components from affecting the photography.

[0027] In this embodiment, specifically: the connecting rod hole 15 is connected to a rope transmission system 20 , and the rope transmission system 20 includes a drum 21 , a drum shaft 22 , a drum handle 23 , a drum support 24 , a fixed pulley 25 , a rope 26 , and a rope scale 27 .

[0028] In this embodiment, specifically: the rope transmission system 20 is connected to the trolley body 10 through the rope 26 passing through the connecting rod hole 15, and controls the rise and fall of the trolley. The rope 26 includes equidistant rope scales 27 for indicating the distance the trolley body 10 descends or rises each time.

[0029] In this embodiment, specifically: the roller 21 is connected to the roller support 24 by welding, the roller shaft 22 is placed in the cylindrical roller 21, and is connected to the roller handle 23 by mechanical fixing.

[0030] In this embodiment, specifically: there are two fixed pulleys 25, which are respectively welded at corresponding positions of the drum support 24, and are used to change the direction of force conduction. One end of the rope 26 is connected to the drum shaft 22, and the other end bypasses the fixed pulley 25 and is connected to the trolley body 10. The rope 26 includes rope scales 27 with equal distances, which are used to control the distance that the trolley body 10 descends or rises each time.

[0031] The working principle of the utility model is as follows: the working place of the trolley body 10 is the slope of the dam, the rope transmission system 20 is placed on the top of the dam and operated by two people. When working, the roller support 24 is placed on the flat place on the top of the dam, and the lighting switch 116 is turned on for fill light. One person controls the up and down movement of the trolley and moves the device to an adjacent position by turning the roller handle 23, and the other person controls the shooting of the wireless camera 19 through the remote control device 111. The camera can be remotely connected to the computer device by the corresponding software. The shape and size of the camera's shooting field of view can be calculated by the target surface size and focal length of the wireless camera 19, which is a rectangle, and the obtained The length and width of the field of view, the width can determine the spacing of the rope scale 27 on the rope 26, each shooting cycle operates the roller 21 to drop one spacing, and the process of the trolley moving from top to bottom can be divided into multiple cycles. Each time the trolley drops one spacing, the wireless camera 19 is controlled to shoot. After completing the shooting from the top of the dam to the junction of the dam and the water surface, the trolley body 10 is pulled back through the rope transmission system 20. This is a process, and the roller support 24 is moved to a position adjacent to a field of view length, and then the above process is repeated. In this way, the coverage shooting of the slope above the water surface of the dam is realized. The obtained image data can be used for deep learning or image processing to detect the cracks in the dam. Since the pictures taken by the utility model are obtained under equidistant conditions, the ratio of the number of crack pixels to the actual crack size is fixed, so the geometric size of the crack in reality can be judged by the number of crack pixels in the picture.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 dam crack detection device, characterized in that The invention comprises a trolley body (10) and a rope transmission system (20), wherein the trolley body (10) comprises wheels (11), a solid shaft (12), a welding bracket (13), a connecting rod (14), a connecting rod hole (15), a camera base (16), a base hole (17), a fixed baffle (18), a wireless camera (19), an antenna (110), a remote control device (111), a fixing bolt (112), a thread (113), a lighting fixture belt (114), a lighting fixture (115), and a lighting fixture switch (116); The solid shaft (12) is symmetrically connected to wheels (11) on both sides, the two solid shafts (12) are welded to the connecting rod (14), one side of the connecting rod (14) is provided with a connecting rod hole (15), the top of the two connecting rods (14) is connected to the welding bracket (13) by welding, the camera base (16) is horizontally placed directly above the welding bracket (13) and is welded, a base hole (17) is provided in the middle of the camera base (16), the fixed baffle (18) is vertically welded above the camera base (16) and is provided with two threads (113), the wireless camera (19) is placed in the fixed baffle (18) and is connected to the fixed baffle (18) by means of fixing bolts (112) and threads (113), the lighting lamp (115) is bound to both sides of the welding bracket (13) by means of a lighting lamp fixing belt (114), and is controlled by means of a lighting lamp switch (116).

2. The dam crack detection device according to claim 1, characterized in that: The wireless camera (19) is internally provided with a DC power supply for powering the camera and a remote control device (111) for controlling the shooting of photos, and an antenna (110) is connected above for signal transmission.

3. The dam crack detection device according to claim 1, characterized in that: There are two lighting lamps (115) in total, which are symmetrically mounted on both sides of the welding bracket (13) and tilted inward at the same angle to provide supplementary light for the camera to take pictures, thereby preventing the shadows caused by the upper parts from affecting the picture.

4. The dam crack detection device according to claim 1, characterized in that: The connecting rod hole (15) is connected to a rope transmission system (20), and the rope transmission system (20) comprises a drum (21), a drum shaft (22), a drum handle (23), a drum support (24), a fixed pulley (25), a rope (26), and a rope scale (27).

5. The dam crack detection device according to claim 1, characterized in that: The rope transmission system (20) is connected to the trolley body (10) through a rope (26) passing through a connecting rod hole (15) and controls the rise and fall of the trolley. The rope (26) includes rope scales (27) at equal intervals for indicating the distance of each descent or rise of the trolley body (10).

6. The dam crack detection device according to claim 4, characterized in that: The roller (21) is connected to the roller support (24) by welding, and the roller shaft (22) is placed in the cylindrical roller (21) and is connected to the roller handle (23) by mechanical fixing.

7. The dam crack detection device according to claim 4, characterized in that: There are two fixed pulleys (25) respectively welded to corresponding positions of the roller support (24) for changing the direction of force conduction.

8. The dam crack detection device according to claim 4, characterized in that: One end of the rope (26) is connected to the drum shaft (22), and the other end passes around the fixed pulley (25) and is connected to the trolley body (10).

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