Mass concrete crack detection device

Abstract

The utility model belongs to the technical field of crack detection, and particularly relates to a large-volume concrete crack detection device which comprises a movable bottom plate, a detection mechanism is arranged on the top of the movable bottom plate, a soot blowing assembly is arranged on one side of the detection mechanism, and the soot blowing assembly is arranged on the other side of the movable bottom plate. According to the large-volume concrete crack detection device, through the arranged detection mechanism, the effects that a detection instrument is automatically attached to the surface of concrete for detection, and manual operation is reduced are achieved; a first electric push rod can adjust the height of a placement block to facilitate detection of mass concrete with different heights, and a second electric push rod is started to enable a probe to extend out of a placement groove to be matched with an adjusting assembly, so that the probe can be more tightly attached to the surface of the concrete, and the detection accuracy is improved while the detection result precision is improved. And manual operation is also reduced.

Description

Technical Field

[0001] This utility model belongs to the field of crack detection technology, specifically relating to a device for detecting cracks in large-volume concrete. Background Technology

[0002] Large-volume concrete structures are widely used in major infrastructure projects such as water conservancy projects, bridges, tunnels, nuclear power plants, and high-rise buildings. Due to their large volume and complex structure, the concrete is susceptible to factors such as temperature stress, shrinkage stress, and external loads during construction and use, leading to internal or surface cracks. These cracks not only affect the integrity and durability of the structure but may also cause serious safety hazards, such as leakage, structural instability, or even collapse. Current methods for detecting cracks in large-volume concrete still have the following shortcomings:

[0003] Traditional crack detection in large-volume concrete often involves workers visually inspecting surface cracks or scanning point by point with handheld instruments. However, due to the large volume of concrete, this increases the workload for workers, is time-consuming and labor-intensive, and is prone to missed detections.

[0004] Therefore, we have made improvements to this and proposed a detection device for large-volume concrete cracks. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting cracks in large-volume concrete, in order to solve the current problem that when detecting cracks in large-volume concrete, workers often use manual visual inspection to detect surface cracks or handheld detection instruments to scan point by point. However, due to the large volume of large-volume concrete, the workload of workers gradually increases, which is time-consuming and laborious, and is also prone to missed detection.

[0006] To solve the above-mentioned technical problems, this utility model provides a detection device for large-volume concrete cracks, including a movable base plate, a detection mechanism is provided on the top of the movable base plate, and a dust blowing component is provided on one side of the detection mechanism.

[0007] The detection mechanism includes a first electric actuator, a placement block, a placement slot, a second electric actuator, a fixed plate, a stabilizing rod, a moving plate, springs, an ultrasonic flaw detector, a probe, and an adjustment assembly. The first electric actuator is located on the top of the moving base plate, the placement block is located on the top of the first electric actuator, the placement slot is located inside the placement block, the second electric actuator is located on the inner wall of the placement slot, the fixed plate is located on one side of the second electric actuator, multiple stabilizing rods are slidably connected to the inside of the fixed plate, the moving plate is fixedly connected to one side of the stabilizing rods, and the two ends of multiple springs are respectively fixedly connected to one side of the fixed plate and the moving plate. The ultrasonic flaw detector is located on the top of the moving base plate, and the probe is located on the side of the moving plate away from the springs.

[0008] Furthermore, the adjustment assembly includes an extension rod, a pressure sensor, and a controller. The extension rod is fixedly connected to the side of the moving plate near the spring. The pressure sensor is located on the side of the fixed plate away from the second electric push rod. The controller is located on the top of the placement block. Both the second electric push rod and the pressure sensor are electrically connected to the controller.

[0009] Furthermore, the soot blowing assembly includes an extension plate, a small fan, and an air guide pipe. The extension plate is fixedly connected to one side of the placement block, the small fan is bolted to the top of the extension plate, and the air guide pipe is located at the output end of the small fan.

[0010] Furthermore, a storage battery is provided on the inner wall of the mounting frame, and the first electric actuator, the second electric actuator, the pressure sensor, the controller, and the small fan are all electrically connected to the storage battery.

[0011] Furthermore, a plurality of stabilizing grooves are provided on one side of the placement block, and ball bearings are movably connected inside the stabilizing grooves.

[0012] Furthermore, two telescopic rods are fixedly connected to the top of the movable base plate, and the top of the telescopic rods is fixedly connected to the bottom of the placement block.

[0013] Furthermore, a soft pad is fitted into the inner wall of the placement groove, and a pull ring is provided on one side of the soft pad.

[0014] The beneficial effects of this utility model are:

[0015] 1. The detection mechanism enables automatic placement of the detection instrument on the concrete surface for testing, reducing manual operation. The first electric push rod can adjust the height of the placement block, facilitating the testing of large-volume concrete of different heights. By activating the second electric push rod, the probe can extend out of the placement slot and, in conjunction with the adjustment component, make the probe fit more tightly against the concrete surface, improving the accuracy of the test results while also reducing manual operation.

[0016] 2. With the extension plate, small fan and air duct set up, the small fan can be turned on before the test, and the air duct can be used to blow away the floating dust on the concrete, reducing the impact of dust on the probe.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the detection device for large-volume concrete cracks provided by this utility model;

[0020] Figure 2 A front view of the device for detecting large-volume concrete cracks provided by this utility model.

[0021] Figure 3 The present invention provides a detection device for large-volume concrete cracks. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0022] Figure 4 The present invention provides a detection device for large-volume concrete cracks. Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 A schematic diagram of the structure of the small fan in the large-volume concrete crack detection device provided by this utility model.

[0024] In the picture:

[0025] 1. Movable base plate; 2. Detection mechanism; 201. First electric actuator; 202. Placement block; 203. Placement slot; 204. Second electric actuator; 205. Fixed plate; 206. Stabilizing rod; 207. Movable plate; 208. Spring; 209. Ultrasonic flaw detector; 210. Probe; 211. Adjustment assembly; 2111. Extension rod; 2112. Pressure sensor; 2113. Controller; 3. Extension plate; 4. Small fan; 5. Air duct; 6. Mounting frame; 7. Battery; 8. Stabilizing slot; 9. Ball bearing; 10. Telescopic rod; 11. Soft pad; 12. Pull ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example:

[0028] like Figures 1 to 5 As shown, a detection device for large-volume concrete cracks includes a movable base plate 1, a detection mechanism 2 is provided on the top of the movable base plate 1, and a dust blowing component is provided on one side of the detection mechanism 2.

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, the detection mechanism 2 includes a first electric actuator 201, a placement block 202, a placement groove 203, a second electric actuator 204, a fixed plate 205, a stabilizing rod 206, a moving plate 207, a spring 208, an ultrasonic flaw detector 209, a probe 210, and an adjustment assembly 211. The first electric actuator 201 is located on the top of the moving base plate 1, the placement block 202 is located on the top of the first electric actuator 201, the placement groove 203 is formed inside the placement block 202, and the second electric actuator 204 is located on the inner wall of the placement groove 203. A fixed plate 205 is disposed on one side of the second electric push rod 204. Multiple stabilizing rods 206 are slidably connected inside the fixed plate 205. A movable plate 207 is fixedly connected to one side of the stabilizing rods 206. The two ends of multiple springs 208 are respectively fixedly connected to one side of the fixed plate 205 and the movable plate 207, and are sleeved on the outside of the stabilizing rods 206. An ultrasonic flaw detector 209 is disposed on the top of the movable base plate 1. A probe 210 is disposed on the side of the movable plate 207 away from the springs 208 and is electrically connected to the ultrasonic flaw detector 209. After applying coupling agent to the probe 210, the second electric actuator 204 is activated, which extends the probe 210 from the moving plate 207 into the placement slot 203 and fits it against the concrete surface. The ultrasonic flaw detector 209 is then turned on, allowing the probe 210 to emit high-frequency sound waves towards the concrete surface, which then propagate within the concrete. When encountering defects such as cracks or voids, the waves are reflected, refracted, or scattered, ultimately displaying on the ultrasonic flaw detector 209 for external observation. The height of the probe 210 can be adjusted by activating the first electric actuator 201, and the user only needs to push the moving base plate 1 from the outside, greatly reducing manual operation.

[0030] like Figure 4As shown, the adjustment assembly 211 includes an extension rod 2111, a pressure sensor 2112, and a controller 2113. The extension rod 2111 is fixedly connected to the side of the moving plate 207 near the spring 208. The pressure sensor 2112 is located on the side of the fixed plate 205 away from the second electric push rod 204. The controller 2113 is located on the top of the placement block 202. Both the second electric push rod 204 and the pressure sensor 2112 are electrically connected to the controller 2113. When the second electric push rod 204 pushes the probe 210 to the concrete surface, it will cause the moving plate 207 to compress the spring 208 and move, causing the extension rod 2111 to touch the pressure sensor 2112. The pressure sensor 2112 receives a signal and transmits it to the controller 2113. The controller 2113 will then stop the second electric push rod 204 in time to prevent damage to the probe 210.

[0031] like Figure 5 As shown, an extension plate 3 is fixedly connected to one side of the placement block 202, and a small fan 4 is bolted to the top of the extension plate 3. An air guide pipe 5 is provided at the output end of the small fan 4. Before testing, the small fan 4 can be turned on so that the blown air is blown onto the concrete surface through the air guide pipe 5 to disperse the attached dust and reduce the influence of dust on the probe 210.

[0032] like Figure 3 As shown, a mounting frame 6 is bolted to one side of the placement block 202. A battery 7 is installed on the inner wall of the mounting frame 6. The first electric actuator 201, the second electric actuator 204, the pressure sensor 2112, the controller 2113, and the small fan 4 are all electrically connected to the battery 7. By using the battery 7, the device's dependence on an external power source can be reduced, improving its convenience.

[0033] like Figure 4 As shown, a plurality of stabilizing grooves 8 are provided on one side of the placement block 202, and ball bearings 9 are movably connected inside the stabilizing grooves 8. The ball bearings 9 can move freely in the stabilizing grooves 8, reducing the friction when the placement block 202 moves on the concrete surface.

[0034] like Figure 3 As shown, two telescopic rods 10 are fixedly connected to the top of the movable base plate 1, and the top of the telescopic rods 10 is fixedly connected to the bottom of the placement block 202. When the first electric push rod 201 pushes the placement block 202 up and down, it will simultaneously drive the two telescopic rods 10 to extend and retract, which improves the stability of the placement block 202 during movement.

[0035] like Figure 5 As shown, a soft pad 11 is fitted into the inner wall of the placement groove 203, and a pull ring 12 is provided on one side of the soft pad 11. When not performing testing, the soft pad 11 can be inserted into the placement groove 203 to prevent external dust from adhering to the probe 210.

[0036] In summary, when using this large-volume concrete crack detection device: the operator pushes the movable base plate 1 to the designated position, then starts the small fan 4 to blow air through the air duct 5 onto the concrete surface, dispersing the attached dust; the soft pad 11 is pulled out by the pull ring 12, and after applying coupling agent to the probe 210, the second electric actuator 204 is activated, which extends the probe 210 from the placement slot 203 on the movable plate 207 and makes it fit against the concrete surface. When the probe 210 is pressed tightly against the concrete surface, it will push the movable plate 207 in the opposite direction to press down. The spring 208 moves, causing the extension rod 2111 to touch the pressure sensor 2112. The pressure sensor 2112 receives the signal and transmits it to the controller 2113. The controller 2113 will stop the second electric push rod 204 in time to prevent damage to the probe 210. During the test, the ultrasonic flaw detector 209 is turned on, which allows the probe 210 to emit high-frequency sound waves towards the concrete surface and propagate inside the concrete. When it encounters defects such as cracks and voids, it will be reflected, refracted or scattered, and finally displayed on the ultrasonic flaw detector 209 for external personnel to observe.

[0037] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for detecting cracks in mass concrete, characterized by Include: Mobile base plate (1), the top of mobile base plate (1) is provided with detection mechanism (2); The detection mechanism (2) includes first electric push rod (201), placing block (202), placing groove (203), second electric push rod (204), fixed plate (205), stabilizer bar (206), moving plate (207), spring (208), ultrasonic flaw detector (209), probe (210) and adjusting assembly (211), first electric push rod (201) is arranged on the top of mobile base plate (1), placing block (202) is arranged on the top of first electric push rod (201), placing groove (203) is opened in the inside of placing block (202), second electric push rod (204) is arranged on the inner wall of placing groove (203), fixed plate (205) is arranged on one side of second electric push rod (204), a plurality of stabilizer bars (206) are all slidably connected in the inside of fixed plate (205), moving plate (207) is fixedly connected on one side of stabilizer bar (206), the both ends of a plurality of springs (208) are fixedly connected on one side of fixed plate (205) and moving plate (207) respectively, ultrasonic flaw detector (209) is arranged on the top of mobile base plate (1), probe (210) is arranged on the side of moving plate (207) away from spring (208).

2. A device for detecting cracks in mass concrete as claimed in claim 1, wherein The adjusting assembly (211) includes extension rod (2111), pressure sensor (2112) and controller (2113), the extension rod (2111) is fixedly connected on the side of moving plate (207) close to spring (208), the pressure sensor (2112) is arranged on the side of fixed plate (205) away from second electric push rod (204), the controller (2113) is arranged on the top of placing block (202), and the second electric push rod (204) and pressure sensor (2112) are electrically connected with the controller (2113).

3. A device for detecting cracks in mass concrete as claimed in claim 1, wherein One side of the placing block (202) is fixedly connected with an extension plate (3), the top of the extension plate (3) is bolted with a small fan (4), and the output end of the small fan (4) is provided with a wind guide pipe (5).

4. The apparatus for detecting cracks in mass concrete according to claim 1, wherein One side of the placing block (202) is bolted with a mounting frame (6), the inner wall of the mounting frame (6) is provided with a storage battery (7), and the first electric push rod (201), the second electric push rod (204), the pressure sensor (2112), the controller (2113) and the small fan (4) are electrically connected with the storage battery (7).

5. The apparatus for detecting cracks in mass concrete according to claim 1, wherein A plurality of stabilizing grooves (8) are formed in one side of the placing block (202), and a plurality of rolling balls (9) are movably connected in the inside of the stabilizing grooves (8).

6. A device for detecting cracks in mass concrete as claimed in claim 1, wherein The top of the mobile base plate (1) is fixedly connected with two telescopic rods (10), and the top of the telescopic rod (10) is fixedly connected to the bottom of the placing block (202).

7. A device for detecting cracks in mass concrete as claimed in claim 1, wherein The inner wall of the placing groove (203) is clamped with a soft pad (11), and one side of the soft pad (11) is provided with a pull ring (12).

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