Concrete crack detector

Abstract

The utility model relates to the technical field of concrete surface crack detection, and discloses a concrete crack detector, which comprises a mobile vehicle body, an ultrasonic instrument and a control instrument fixedly arranged at the top of the mobile vehicle body, and further comprises a motor fixedly arranged on the inner wall of the bottom of the mobile vehicle body, a rotating shaft extending upwards is fixedly arranged at the output end of the motor, and a swing arm is fixedly arranged at the upper end of the rotating shaft. The electric push rod is fixedly arranged on the lower side of the end, away from the movable trolley body, of the swing arm, a mounting plate is fixedly arranged at the movable end of the electric push rod, and the ultrasonic instrument is fixedly arranged on the lower surface of the mounting plate. According to the utility model, dust and impurities on the surface of concrete can be automatically cleaned, raised dust can be sucked and removed, manpower and time cost are saved, dust can be prevented from interfering with ultrasonic propagation, and the detection precision is greatly improved; meanwhile, the detection stability and safety of the ultrasonic instrument are guaranteed, the detection area is enlarged, the detection process is optimized, and the overall working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete surface crack detection technology, and in particular to a concrete crack detector. Background Technology

[0002] At present, the quality inspection of concrete structures is of paramount importance. Among them, the detection of concrete cracks is a key link in assessing the safety and durability of structures. With the emergence of a large number of concrete buildings such as roads, bridges, and high-rise buildings, the demand for concrete crack detection technology and equipment is also increasing.

[0003] Existing ultrasonic testing equipment is commonly used in concrete crack detection. It utilizes the propagation characteristics of ultrasonic waves in concrete, analyzing parameters such as propagation speed and energy attenuation to determine the presence of cracks and related information, such as depth, location, and width. However, in road inspection scenarios, road surfaces are exposed to the elements for extended periods, accumulating significant amounts of dust and impurities. To ensure accurate results, manual cleaning of the inspection area is usually required. This not only consumes substantial manpower and time but also inevitably stirs up dust during cleaning, severely interfering with the inspection process. Dust causes scattering and absorption of ultrasonic waves as they propagate through the air, weakening the energy of the ultrasonic waves reaching the concrete surface and interior. This reduces the strength of the received detection signal, making it unstable and unclear, thus interfering with the detection signal and making it difficult for inspectors to accurately determine crack parameters. This severely impacts inspection accuracy and reduces overall precision.

[0004] Therefore, a concrete crack detector is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the display module in the prior art is easily damaged, and once damaged, the staff needs to spend a lot of time to disassemble the display module, which affects the repair progress. Therefore, a concrete crack detector is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A concrete crack detector includes a mobile vehicle, an ultrasonic instrument, and a control instrument, wherein the control instrument is fixedly mounted on the top of the mobile vehicle. The detector also includes:

[0008] The motor is fixedly installed on the bottom inner wall of the mobile vehicle body. The output end of the motor is fixedly provided with an upwardly extending rotating shaft, and the upper end of the rotating shaft is fixedly provided with a swing arm.

[0009] An electric push rod is fixedly installed on the lower side of the end of the swing arm away from the moving vehicle body. The moving end of the electric push rod is fixedly provided with a mounting plate, and the ultrasonic instrument is fixedly installed on the lower surface of the mounting plate.

[0010] A limiting angle limiting component is disposed inside the moving vehicle body, and the shaft wall of the rotating shaft passes through the center of the limiting angle limiting component;

[0011] A cleaning component is disposed on the lower surface of the mounting plate;

[0012] A vacuuming assembly is mounted on the mobile vehicle body and the mounting plate;

[0013] A crack marking component is disposed on the lower surface of the mounting plate. The ultrasonic instrument, motor, electric push rod, limiting angle limiting component, and dust collection component are all electrically connected to the control instrument.

[0014] Preferably, the limiting angle limiting component includes a fixed ring, a connecting rod is fixedly provided between one side of the fixed ring and the inner sidewall of the moving vehicle body, the rotating shaft is located in the middle of the fixed ring, a rotating rod is fixedly provided on the shaft wall of the rotating shaft, and contact heads are fixedly provided on both sides of the end of the rotating rod. Mounting seats are fixedly provided on both sides of the inner sidewall of the fixed ring, and limit switches are fixedly provided on the sidewalls of the two mounting seats.

[0015] Preferably, the cleaning assembly includes a cleaning rod fixedly disposed on the lower surface of the mounting plate, and a cleaning brush is fixedly disposed at the lower end of the cleaning rod.

[0016] Preferably, the vacuuming assembly includes a vacuum cleaner fixedly mounted on the mobile vehicle body, a hose fixedly provided at the suction end of the vacuum cleaner, a suction pipe fixedly provided on the lower surface of the mounting plate, a vacuum head fixedly provided at the lower end of the suction pipe, and the end of the hose away from the vacuum cleaner being fixedly connected to the wall of the suction pipe.

[0017] Preferably, the crack marking assembly includes a pigment storage tank fixedly disposed on the lower surface of the mounting plate, a pump body fixedly disposed inside the pigment storage tank, and a downwardly extending marking tube fixedly disposed at the output end of the pump body.

[0018] Preferably, the cleaning component, vacuuming component, ultrasonic instrument, and crack marking component are arranged sequentially from left to right.

[0019] Compared with the prior art, this utility model provides a concrete crack detector, which has the following beneficial effects:

[0020] 1. This concrete crack detector, by incorporating a cleaning component and a dust extraction component, can clean dust and impurities from the concrete surface before testing. Simultaneously, the dust extraction component removes dust generated during the cleaning process, avoiding the tedious manual cleaning and saving manpower and time costs. Furthermore, it effectively reduces the interference of dust on ultrasonic wave propagation, ensuring stable ultrasonic energy reaching the concrete surface and interior, resulting in a stable and clear received detection signal. This guarantees that testing personnel can accurately determine the relevant parameters of the crack, improving the precision and accuracy of the detection.

[0021] 2. This concrete crack detector, through the setting of a limiting angle limiting component, can stop the motor and work in reverse when the rotating shaft drives the swing arm to rotate, thereby limiting the rotation angle of the swing arm, ensuring the stability of the ultrasonic instrument's position during the detection process, avoiding damage to the ultrasonic instrument from collisions with other objects due to excessive rotation of the swing arm, and also expanding the detection area of ​​the ultrasonic instrument for cracks on the concrete surface, thus improving detection efficiency.

[0022] 3. This concrete crack detector, by setting up a crack marking component, controls the crack marking component to mark the location of the crack after detecting a concrete crack. This facilitates further processing and recording of the crack by subsequent staff, improving work efficiency and making the entire detection process more complete and convenient.

[0023] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model, through the coordinated operation of the cleaning component and the dust suction component, can automatically clean dust and impurities on the concrete surface and remove dust, saving manpower and time costs, while also avoiding dust interference with ultrasonic wave propagation, thus significantly improving detection accuracy. At the same time, the limiting angle component can precisely control the rotation angle of the swing arm, ensuring the detection stability and safety of the ultrasonic instrument, and expanding the detection area, thereby improving detection efficiency. The crack marking component can mark cracks in a timely manner after detection, facilitating subsequent processing and recording, optimizing the detection process, and improving overall work efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a concrete crack detector proposed in this utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the middle limit angle limiting component;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of the crack marking component.

[0027] In the diagram: 1. Mobile vehicle body; 2. Ultrasonic instrument; 3. Control instrument; 4. Motor; 5. Rotating shaft; 6. Swing arm; 7. Electric push rod; 8. Mounting plate; 9. Limiting angle limiting component; 91. Fixing ring; 92. Connecting rod; 93. Rotating rod; 94. Contact head; 95. Mounting base; 96. Limit switch; 10. Cleaning component; 101. Cleaning rod; 102. Cleaning brush; 11. Vacuuming component; 111. Vacuum cleaner; 112. Hose; 113. Vacuum pipe; 114. Vacuum head; 12. Crack marking component; 121. Pigment storage tank; 122. Pump body; 123. Marking tube. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Reference Figure 1-3 A concrete crack detector includes a mobile vehicle body 1, an ultrasonic instrument 2, and a control instrument 3. The control instrument 3 is fixedly mounted on the top of the mobile vehicle body 1. The detector also includes:

[0031] Motor 4 is fixedly mounted on the bottom inner wall of the mobile vehicle body 1. The output end of motor 4 is fixedly provided with an upwardly extending rotating shaft 5. The upper end of the rotating shaft 5 is fixedly provided with a swing arm 6. The limiting angle limiting component 9 includes a fixing ring 91. A connecting rod 92 is fixedly provided between one side of the fixing ring 91 and the inner side wall of the mobile vehicle body 1. The rotating shaft 5 is located in the middle of the fixing ring 91. A rotating rod 93 is fixedly provided on the shaft wall of the rotating shaft 5. Contact heads 94 are fixedly provided on both sides of the end of the rotating rod 93. Mounting seats 95 are fixedly provided on both sides of the inner side wall of the fixing ring 91. Limit switches 96 are fixedly provided on the side walls of the two mounting seats 95.

[0032] An electric push rod 7 is fixedly installed on the lower side of the end of the swing arm 6 away from the moving vehicle body 1. The moving end of the electric push rod 7 is fixedly provided with a mounting plate 8, and the ultrasonic instrument 2 is fixedly installed on the lower surface of the mounting plate 8.

[0033] The limiting angle limiting component 9 is installed inside the moving vehicle body 1, and the shaft wall of the rotating shaft 5 passes through the center of the limiting angle limiting component 9;

[0034] The cleaning assembly 10 is disposed on the lower surface of the mounting plate 8. The cleaning assembly 10 includes a cleaning rod 101 fixedly disposed on the lower surface of the mounting plate 8. A cleaning brush 102 is fixedly disposed at the lower end of the cleaning rod 101. The cleaning brush 102 is made of nylon bristles, which is highly durable and has a good cleaning effect.

[0035] A vacuuming assembly 11 is mounted on the mobile vehicle body 1 and the mounting plate 8. The vacuuming assembly 11 includes a vacuum cleaner 111 fixedly mounted on the mobile vehicle body 1. A hose 112 is fixedly provided at the suction end of the vacuum cleaner 111. A suction pipe 113 is fixedly provided on the lower surface of the mounting plate 8. A suction head 114 is fixedly provided at the lower end of the suction pipe 113. The end of the hose 112 away from the vacuum cleaner 111 is fixedly connected to the pipe wall of the suction pipe 113. Due to the material properties of the hose 112, the hose 112 can bend and change, which can ensure that the suction head 114 can be adjusted with the angle of the swing arm 6 and that suction will not be obstructed.

[0036] The crack marking component 12 is disposed on the lower surface of the mounting plate 8. The crack marking component 12 includes a pigment storage tank 121 fixedly disposed on the lower surface of the mounting plate 8. A pump body 122 is fixedly disposed inside the pigment storage tank 121. A downwardly extending marking tube 123 is fixedly disposed at the output end of the pump body 122. The pump body 122 draws out the pigment and squeezes it out through the marking tube 123 to mark the crack position. The ultrasonic instrument 2, motor 4, electric push rod 7, limiting angle limiting component 9 and dust collection component 11 are all electrically connected to the control instrument 3.

[0037] The cleaning component 10, the vacuuming component 11, the ultrasonic instrument 2, and the crack marking component 12 are arranged in order from left to right. Based on the actual operation of the mobile vehicle 1, the rear of the mobile vehicle 1 is the right side, and the front of the mobile vehicle 1 is the left side.

[0038] In this invention, the testing personnel operate the control instrument 3 to coordinate the orderly operation of each component. After receiving the command from the control instrument 3, the motor 4 starts and drives the connected rotating shaft 5 to rotate. The rotating shaft 5 then drives the swing arm 6 to swing. During the rotation of the swing arm 6, the limiting angle limiting mechanism 9 begins to function. When the rotating shaft 5 drives the rotating rod 93 to rotate, the contact heads 94 on both sides of the end of the rotating rod 93 touch the limit switch 96 on the mounting base 95. After the limit switch 96 is triggered, it sends an electrical signal back to the control instrument 3, causing the control instrument 3 to control the motor 4 to stop working or work in reverse, accurately controlling the reciprocating rotation angle of the swing arm 6, and ensuring the stability of the testing process.

[0039] After the swing arm 6 rotates to the appropriate position, the electric push rod 7 works under the control of the control instrument 3, pushing the mounting plate 8 downward so that the various mechanisms on the lower surface of the mounting plate 8 are close to the concrete testing surface. The cleaning mechanism 10 starts first, and the cleaning brush 102 at the lower end of the cleaning rod 101 fixed on the lower surface of the mounting plate 8 cleans the dust and impurities on the concrete surface. At the same time, the dust collection mechanism 11 starts to work. The vacuum cleaner 111 removes the dust generated during cleaning through the hose 112, the suction pipe 113 and the suction head 114, reducing the interference of dust on the testing.

[0040] After cleaning is completed, the operation control instrument 3 controls the ultrasonic instrument 2 to start working, emitting ultrasonic waves into the concrete and receiving reflected waves. Based on parameters such as ultrasonic wave propagation speed and energy attenuation, it determines whether there are cracks and related information. Once a crack is detected, the operation control instrument 3 sends a signal to the control instrument 3 to start the pump body 122. The pump body 122 squeezes out pigment through the marking tube 123 to mark the location of the crack for subsequent processing.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete crack detector comprising a mobile vehicle body (1), an ultrasonic instrument (2) and a control instrument (3), the control instrument (3) being fixedly arranged on the top of the mobile vehicle body (1), characterized in that, Also include: Motor (4) is fixedly arranged on the bottom inner wall of the mobile vehicle body (1), the output end of the motor (4) is fixedly provided with an upward extending rotating shaft (5), the upper end of the rotating shaft (5) is fixedly provided with a swing arm (6); Electric push rod (7) is fixedly arranged on the lower side of the end of the swing arm (6) away from the mobile vehicle body (1), the moving end of the electric push rod (7) is fixedly provided with a mounting plate (8), the ultrasonic instrument (2) is fixedly arranged on the lower surface of the mounting plate (8); The limiting angle limiting component (9) is arranged in the mobile vehicle body (1), the shaft wall of the rotating shaft (5) passes through the center of the limiting angle limiting component (9); The cleaning assembly (10) is arranged on the lower surface of the mounting plate (8); The dust suction assembly (11) is arranged on the mobile vehicle body (1) and the mounting plate (8); The crack marking assembly (12) is arranged on the lower surface of the mounting plate (8), the ultrasonic instrument (2), the motor (4), the electric push rod (7), the limiting angle limiting component (9) and the dust suction assembly (11) are electrically connected with the control instrument (3).

2. The concrete crack detector according to claim 1, wherein The limiting angle limiting component (9) includes a fixed ring (91), one side of the fixed ring (91) and the inner side wall of the mobile vehicle body (1) are fixedly provided with a connecting rod (92), the rotating shaft (5) is located in the middle of the fixed ring (91), the shaft wall of the rotating shaft (5) is fixedly provided with a rotating rod (93), the distal ends of the rotating rod (93) are fixedly provided with touch heads (94) on both sides, the inner side walls of the fixed ring (91) are fixedly provided with mounting seats (95) on both sides, the side walls of the two mounting seats (95) are fixedly provided with travel switches (96).

3. The concrete crack detector of claim 1, wherein, The cleaning assembly (10) includes a cleaning rod (101) fixedly arranged on the lower surface of the mounting plate (8), and the lower end of the cleaning rod (101) is fixedly provided with a cleaning brush (102).

4. The concrete crack detector of claim 1, wherein, The dust suction assembly (11) includes a dust suction machine (111) fixedly arranged on the mobile vehicle body (1), a hose (112) fixedly arranged on the suction end of the dust suction machine (111), a dust suction pipe (113) fixedly arranged on the lower surface of the mounting plate (8), a dust suction head (114) fixedly arranged on the lower end of the dust suction pipe (113), and the hose (112) is fixedly connected with the pipe wall of the dust suction pipe (113) away from the dust suction machine (111).

5. The concrete crack detector of claim 1, wherein, The crack marking assembly (12) includes a pigment storage tank (121) fixedly arranged on the lower surface of the mounting plate (8), a pump body (122) fixedly arranged in the pigment storage tank (121), and a marking pipe (123) fixedly arranged on the output end of the pump body (122) and extending downward.

6. The concrete crack detector of claim 1, wherein, The cleaning assembly (10), the dust suction assembly (11), the ultrasonic instrument (2) and the crack marking assembly (12) are arranged in sequence from left to right.

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