Building crack detection device

Abstract

The utility model relates to the technical field of building crack detection, and discloses a building crack detection device which comprises a fixing plate, two measuring frames are arranged on the outer side of the fixing plate, a measuring mechanism is arranged on the outer side of the fixing plate and comprises a measuring column, and the outer surface of the measuring column is rotationally connected with the inner wall of the fixing plate. The outer surface of each measuring frame is fixedly connected with the outer surface of the measuring column, and the inner wall of each measuring frame is slidably connected with two moving blocks. According to the building crack detection device, a servo motor rotates to drive a first gear to rotate, and the first gear and a second gear are engaged to drive a measuring column to rotate, so that a measuring frame can be driven to move, and the measuring frame can be adjusted to be in a vertical state to measure the length of a crack; the depth of the crack can be measured through a positioning column and an indicating block in the measuring column, and meanwhile the accuracy and stability of measurement can be improved through the positioning column and a positioning rod.

Description

Technical Field

[0001] This utility model relates to the field of building crack detection technology, specifically a building crack detection device. Background Technology

[0002] Building crack detection refers to the systematic inspection and evaluation of cracks that appear in a building to determine the location, size, shape, depth, direction, and activity of the cracks. This detection work is crucial for assessing the safety, stability, and durability of a building.

[0003] The existing utility model with authorization announcement number CN219996043U discloses a building crack detection device, including a connecting block. A pair of sliders are slidably connected in the connecting block. A connector is fixedly connected to the top of the slider, and a groove is provided on the connector. A rotating shaft is provided in the groove, and the rotating shaft movably passes through a second measuring needle. A slot is provided on one side of the connecting block. A bolt is fixedly connected to one side of the slider, and the bolt slides in the slot. A nut is provided on the side of the bolt away from the slider. A first measuring needle is fixedly connected to the outer surface of the slider, and the first measuring needle slides on the top of the connecting block.

[0004] The above technical solution involves first using a slider to reach one end of a building crack and then fixing it with bolts. Then, another slider is moved to the other end of the building crack and fixed thereafter. By observing the length between the two first measuring needles, the width of the building crack can be determined, which is convenient for detecting building cracks. The structure is simple and easy to operate, which helps to improve work efficiency. However, when using the above technical solution, it can only detect the width of the building crack and is not convenient to detect the length and depth of the crack at the same time, which leads to the problem of limited practicality.

[0005] Therefore, those skilled in the art have provided a building crack detection device to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a building crack detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A building crack detection device includes a fixing plate, two measuring frames are provided on the outer side of the fixing plate, and a measuring mechanism is provided on the outer side of the fixing plate.

[0009] The measuring mechanism includes a measuring column, the outer surface of which is rotatably connected to the inner wall of a fixed plate. The outer surface of each measuring frame is fixedly connected to the outer surface of the measuring column. Two moving blocks are slidably connected to the inner wall of each measuring frame. A positioning rod is slidably connected to the inner wall of each moving block. A second gear is fixedly connected to the outer surface of the measuring column, and a first gear is meshed with the outer surface of the second gear. A servo motor is fixedly connected to the front of the first gear. A positioning column is slidably connected to the inner wall of the measuring column. A first spring is fixedly connected to the inner wall of the positioning column, with one end of the first spring away from the positioning column fixedly connected to the inner wall of the measuring column. An indicator block is fixedly connected to the outer surface of the positioning column, and the outer surface of the indicator block is slidably connected to the inner wall of the measuring column.

[0010] As a further improvement of this utility model: two fixing brackets are fixedly connected to the back of the fixing plate, and two positioning holes are opened on the front of each fixing bracket.

[0011] As a further embodiment of this utility model: reinforcing blocks are fixedly connected to the two sides of the fixed brackets that are far apart from each other, and the two sides of the two reinforcing blocks that are close to each other are fixedly connected to the two sides of the fixed plate respectively.

[0012] As a further improvement of this utility model: each of the measuring frames has a first scale groove arranged at equal intervals on its front side, and the outer surface of the measuring column has a second scale groove arranged at equal intervals.

[0013] As a further embodiment of this utility model: a fixed frame is rotatably connected to the outer surface of the measuring column, the back of the fixed frame is fixedly connected to the front of the fixed plate, and the front of the servo motor is fixedly connected to the inner wall of the fixed frame.

[0014] As a further improvement of this utility model: each of the moving blocks has an inner wall slidably connected to a pressing plate, and the outer surface of each pressing plate is in contact with the inner wall of the measuring frame.

[0015] As a further improvement of this utility model: two second springs are fixedly connected to the back of each extrusion plate, and the end of each second spring away from the extrusion plate is fixedly connected to the inner wall of the moving block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention, by incorporating a measuring column, a measuring frame, a positioning rod, a moving block, and an indicator block, enables convenient and simultaneous effective detection of the length, width, and depth of cracks. A servo motor drives a first gear to rotate, and the meshing of the first and second gears causes the measuring column to rotate, which in turn moves the measuring frame, allowing it to be adjusted to a vertical position for crack length measurement. The positioning rod and indicator block within the measuring column can measure crack depth. Furthermore, the positioning rod and positioning column contribute to improved measurement accuracy and stability, enabling the measurement of different crack data. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a building crack detection device.

[0019] Figure 2 A cross-sectional three-dimensional structural diagram of a fixing plate in a building crack detection device;

[0020] Figure 3 A cross-sectional three-dimensional structural diagram of a measuring frame in a building crack detection device;

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of a measuring column in a building crack detection device.

[0022] In the diagram: 1. Fixing plate; 2. Measuring frame; 3. Measuring mechanism; 301. Measuring column; 302. Servo motor; 303. First gear; 304. Second gear; 305. Moving block; 306. Positioning rod; 307. Positioning column; 308. First spring; 309. Indicator block; 4. Fixing frame; 5. Positioning hole; 6. Reinforcing block; 7. Fixing frame; 8. First scale groove; 9. Second scale groove; 10. Extrusion plate; 11. Second spring. Detailed Implementation

[0023] Please see Figure 1-4 A building crack detection device includes a fixing plate 1, two measuring frames 2 are arranged on the outside of the fixing plate 1, and a measuring mechanism 3 is arranged on the outside of the fixing plate 1.

[0024] The measuring mechanism 3 includes a measuring column 301, the outer surface of which is rotatably connected to the inner wall of the fixing plate 1. Two fixing brackets 4 are fixedly connected to the back of the fixing plate 1. Each fixing bracket 4 has two positioning holes 5 on its front. This design helps the fixing brackets 4 to provide a stable support structure when the building crack detection device is installed on the building surface. The positioning holes 5 can be used to cooperate with other fixing components such as bolts to make the device more firmly fixed to the building.

[0025] The outer surface of each measuring frame 2 is fixedly connected to the outer surface of the measuring column 301. The inner wall of each measuring frame 2 is slidably connected to two moving blocks 305. The two fixed frames 4 are fixedly connected to the opposite sides of each other with reinforcing blocks 6. The opposite sides of the two reinforcing blocks 6 are fixedly connected to the two sides of the fixed plate 1 respectively. The presence of the reinforcing blocks 6 can enhance the connection strength between the fixed frame 4 and the fixed plate 1. During the operation of the detection device, due to the possible influence of the external environment, the reinforcing blocks 6 can share the stress borne by the fixed frame 4, reduce the risk of deformation at the connection between the fixed plate 1 and the fixed frame 4, ensure the stability of the entire device structure, and thus facilitate the normal operation of crack detection.

[0026] Each moving block 305 has a slidably connected positioning rod 306 on its inner wall, and a second gear 304 is fixedly connected to the outer surface of the measuring column 301. Each measuring frame 2 has a first scale groove 8 arranged at equal intervals on its front side, and a second scale groove 9 arranged at equal intervals on the outer surface of the measuring column 301. The first scale groove 8 and the second scale groove 9 provide an intuitive reference standard for measuring parameters such as the width of the crack. By observing the relative positional changes of the first scale groove 8 and the second scale groove 9, the relevant size information of the crack can be accurately read, thus improving the accuracy and intuitiveness of the detection results.

[0027] The outer surface of the second gear 304 is meshed with the first gear 303. The front of the first gear 303 is fixedly connected to the servo motor 302. The outer surface of the measuring column 301 is rotatably connected to the fixing frame 7. The back of the fixing frame 7 is fixedly connected to the front of the fixing plate 1. The front of the servo motor 302 is fixedly connected to the inner wall of the fixing frame 7. The fixing frame 7 provides support and limit for the measuring column 301, ensuring that the measuring column 301 can rotate stably on a fixed axis. At the same time, it provides an installation position for the servo motor 302, enabling the servo motor 302 to stably drive the first gear 303, thereby driving the second gear 304 and the measuring column 301 to rotate, ensuring the normal operation of the measuring mechanism 3 and providing power support for crack detection.

[0028] A positioning post 307 is slidably connected to the inner wall of the measuring post 301. A first spring 308 is fixedly connected to the inner wall of the positioning post 307. The end of the first spring 308 away from the positioning post 307 is fixedly connected to the inner wall of the measuring post 301. A pressing plate 10 is slidably connected to the inner wall of each moving block 305. The outer surface of each pressing plate 10 is in contact with the inner wall of the measuring frame 2. The pressing plate 10 can interact with the inner wall of the measuring frame 2 during the sliding process of the moving block 305, which can increase the friction between the moving block 305 and the inner wall of the measuring frame 2, thereby maintaining a stable state without adjusting the position.

[0029] An indicator block 309 is fixedly connected to the outer surface of the positioning column 307. The outer surface of the indicator block 309 is slidably connected to the inner wall of the measuring column 301. Two second springs 11 are fixedly connected to the back of the extrusion plate 10. The end of each second spring 11 away from the extrusion plate 10 is fixedly connected to the inner wall of the moving block 305. The second springs 11 provide elastic support for the extrusion plate 10, so that the extrusion plate 10 can return to the initial state in time or remain in a relatively stable position, and prevent the extrusion plate 10 from moving automatically.

[0030] The working principle of this utility model is as follows: In use, the operator first connects the power supply to the servo motor 302. Then, the operator pushes the positioning rod 306, which moves backward, causing the extrusion plate 10 to move backward, thus preventing the extrusion plate 10 from contacting the measuring frame 2 and reducing friction. The operator then pulls the moving blocks 305 on both sides to move the frame. After moving the frame to a suitable width, the operator releases the positioning rod 306 and measures the crack width by comparing the two positioning rods 306 with the first scale groove 8. Subsequently, the operator turns on the servo motor 302, which drives the first gear 303 to rotate. The first gear 303 meshes with the second gear 304, causing the measuring column 301 to rotate. When the measuring column 301 rotates, the measuring frame 2, which is fixedly connected to its outer surface, also rotates until it reaches a vertical position. Then, the length of the crack can be measured through the positioning rod 306 and the moving block 305. Finally, when it is necessary to measure the depth of the crack, the operator manually pushes the indicator block 309 to move. The movement of the indicator block 309 can drive the positioning column 307 to move, and at the same time, it can pull the first spring 308 inside the positioning column 307 to extend and retract. The first spring 308 can limit the positioning column 307 and also facilitate reset. Finally, when the positioning column 307 moves to the deepest part of the crack, the operator can observe and compare the second scale groove 9 through the indicator block 309 to detect the depth of the crack.

[0031] 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 building crack detection device, comprising a fixing plate (1), characterized in that: Two measuring frames (2) are provided on the outside of the fixing plate (1), and a measuring mechanism (3) is provided on the outside of the fixing plate (1). The measuring mechanism (3) includes a measuring column (301), the outer surface of which is rotatably connected to the inner wall of the fixed plate (1). The outer surface of each measuring frame (2) is fixedly connected to the outer surface of the measuring column (301). Two moving blocks (305) are slidably connected to the inner wall of each measuring frame (2). A positioning rod (306) is slidably connected to the inner wall of each moving block (305). A second gear (304) is fixedly connected to the outer surface of the measuring column (301). The outer surface of the second gear (304) is meshed with a first... A gear (303) is fixedly connected to the front of the first gear (303) and a servo motor (302). A positioning column (307) is slidably connected to the inner wall of the measuring column (301). A first spring (308) is fixedly connected to the inner wall of the positioning column (307). One end of the first spring (308) away from the positioning column (307) is fixedly connected to the inner wall of the measuring column (301). An indicator block (309) is fixedly connected to the outer surface of the positioning column (307). The outer surface of the indicator block (309) is slidably connected to the inner wall of the measuring column (301).

2. The building crack detection device according to claim 1, characterized in that: The back of the fixing plate (1) is fixedly connected to two fixing brackets (4), and each fixing bracket (4) has two positioning holes (5) on its front.

3. The building crack detection device according to claim 2, characterized in that: The two fixed frames (4) are fixedly connected to a reinforcing block (6) on the side that is far apart from each other, and the two reinforcing blocks (6) are fixedly connected to the two sides of the fixed plate (1) on the side that is close to each other.

4. The building crack detection device according to claim 1, characterized in that: Each of the measuring frames (2) has a first scale groove (8) arranged at equal intervals on its front side, and the measuring column (301) has a second scale groove (9) arranged at equal intervals on its outer surface.

5. A building crack detection device according to claim 1, characterized in that: The outer surface of the measuring column (301) is rotatably connected to a fixed frame (7), the back of the fixed frame (7) is fixedly connected to the front of the fixed plate (1), and the front of the servo motor (302) is fixedly connected to the inner wall of the fixed frame (7).

6. The building crack detection device according to claim 1, characterized in that: Each of the moving blocks (305) has an extrusion plate (10) slidably connected to its inner wall, and the outer surface of each extrusion plate (10) is in contact with the inner wall of the measuring frame (2).

7. A building crack detection device according to claim 6, characterized in that: Two second springs (11) are fixedly connected to the back of each of the extrusion plates (10), and the end of each second spring (11) away from the extrusion plate (10) is fixedly connected to the inner wall of the moving block (305).

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