Concrete crack width measuring instrument

Abstract

The utility model discloses a concrete crack width measuring instrument, which relates to the technical field of crack width measurement and comprises a supporting column, a supporting plate is movably connected to the top of the supporting column, a connecting nut is movably connected to one side of the top of the supporting plate, a first mounting groove is formed in the top of one side of the supporting plate, and a second mounting groove is formed in the top of the other side of the supporting plate. The other side of the supporting plate is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a conveying rod. The installation direction of the supporting plate is adjusted by rotating the connecting nut, the hydraulic lifting rod is adjusted to be pushed by the air cylinder on one side, the installation position of the hydraulic lifting rod in the first installation groove is changed, the hydraulic lifting rod moves to the position over the crack, the contact is inserted into the crack through pushing of the hydraulic lifting rod on the top, and the middle point position is firstly determined to be stable; meanwhile, the motor rotates to enable the sliding block to slide, the touch plates are made to be attached to the inner wall of the crack, the distance of the crack is measured, and the width of the crack is measured according to the pulling distance of the two touch plates.

Description

Technical Field

[0001] This utility model relates to the field of crack width measurement technology, specifically to a concrete crack width measuring instrument. Background Technology

[0002] Cracks are a common defect in concrete structures, and the general standard for detecting concrete cracks stipulates that the maximum crack width is 0.2 mm. The presence and development of cracks usually cause corrosion of internal materials such as reinforcing steel, reducing the load-bearing capacity of the concrete, affecting the service life of the building, and in severe cases, threatening people's lives. Quickly and accurately measuring the width of concrete cracks and determining whether they exceed the specified range is of great significance for ensuring the safety of concrete structures. Currently, the most widely used method for measuring crack width in China is the reading microscope.

[0003] The existing technology has the following problems:

[0004] 1. Existing concrete crack width measuring instruments require manual handling of the device, which can cause deviations in the measurement direction, resulting in inaccurate measurements of the crack width in the forward direction.

[0005] 2. Existing concrete crack width measuring instruments require manual adjustment of the spacing of the width measuring plates, which is inconvenient to operate during measurement. During the adjustment process, the force applied may cause the device to deviate from its original direction, making the device inconvenient to use. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A concrete crack width measuring instrument includes a support column, a support plate movably connected to the top of the support column, a connecting nut movably connected to one side of the top of the support plate, a first mounting groove opened on the top of one side of the support plate, a cylinder fixedly connected to the other side of the support plate, a transmission rod fixedly connected to the output end of the cylinder, and a connecting plate fixedly connected to one end of the transmission rod.

[0008] A sliding rod is fixedly connected inside the first mounting groove, a hydraulic lifting rod is slidably connected to the outer wall of the sliding rod, an insert rod is fixedly connected to the outer wall of the hydraulic lifting rod, and a mounting hole is provided on the other side of the top of the support plate.

[0009] A further improvement of this utility model is that: the inner wall of the first mounting groove is provided with a sliding groove, the insertion rod is movably inserted into the inside of the sliding groove, and the outer wall of the hydraulic lifting rod is fixedly connected to one side of the connecting plate.

[0010] A further improvement of this utility model is that: a second mounting groove is provided inside the support column, a base box is fixedly connected to the bottom of the support column, a hydraulic telescopic rod is fixedly connected inside the second mounting groove, a piston is fixedly connected to the bottom of the hydraulic telescopic rod, a connecting frame is fixedly connected to the inner wall of the second mounting groove, a sleeve is fixedly connected to one side of the connecting frame, an adsorption rubber is fixedly connected to the bottom of the sleeve, and a concave hole is provided at the top of the adsorption rubber.

[0011] A further improvement of this utility model is that the piston is movably connected to the inside of the sleeve and the inside of the adsorption rubber mounting base box.

[0012] A further improvement of this utility model is that: a connecting cylinder is fixedly connected to the bottom of the hydraulic lifting rod, an image acquisition module is fixedly connected inside the connecting cylinder, a connecting rod is fixedly connected to the bottom of the image acquisition module, a contact is fixedly connected to the bottom of the connecting rod, and a receiver is fixedly connected to the top of the image acquisition module.

[0013] A further improvement of this utility model is that: a mounting rail is inserted into the top of the receiver, motors are fixedly connected to both ends of the receiver, a threaded rod is fixedly connected to the output end of the motor, a slider is movably connected to the outer wall of the threaded rod, and a contact plate is fixedly connected to the bottom of the slider.

[0014] A further improvement of this utility model is that: the mounting rail is fixedly installed inside the connecting cylinder, the slider is movably connected to the inside of the mounting rail, and grooves are provided on both sides of the outer wall of the connecting cylinder.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a concrete crack width measuring instrument. When using the measuring instrument, first determine the location of the crack to be measured, then install the support column on one side of the crack for fixed support, then rotate the connecting nut to adjust the installation direction of the support plate, and adjust the hydraulic lifting rod by pushing it through a cylinder on one side to change the installation position of the hydraulic lifting rod inside the first installation groove, moving it directly above the crack. The hydraulic lifting rod is pulled by a transmission rod, eliminating the need for manual adjustment and reducing slippage due to terrain. Compared with existing devices, where manual handling leads to inaccurate measurement positions and deviations in measurement data, this device eliminates the need for manual handling, ensuring that the bottom of the hydraulic lifting rod is precisely aligned with the top of the crack, facilitating accurate measurement of the crack later.

[0017] 2. This utility model provides a concrete crack width measuring instrument. The contact head is inserted into the crack by pushing the top hydraulic lifting rod. First, the middle point is determined and kept stable. Then, the image acquisition module takes a picture of the crack from the top and transmits the front image of the crack. At the same time, the motor rotates and the slider slides, causing the contact plate to adhere to the inner wall of the crack to measure the distance of the crack. The width of the crack is measured according to the distance between the two sets of contact plates, making the device more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the concrete crack width measuring instrument of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the support column of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting cylinder of this utility model.

[0022] In the diagram: 1. Support column; 2. Support plate; 3. Connecting nut; 4. First mounting slot; 5. Cylinder; 6. Transmission rod; 7. Connecting plate; 8. Hydraulic lifting rod; 9. Insert rod; 10. Slide rod; 11. Mounting hole; 12. Connecting cylinder; 13. Second mounting slot; 14. Base box; 15. Hydraulic telescopic rod; 16. Piston; 17. Sleeve; 18. Connecting frame; 19. Adsorption rubber; 20. Concave hole; 21. Image acquisition module; 22. Connecting rod; 23. Contact; 24. Receiver; 25. Mounting rail; 26. Motor; 27. Threaded rod; 28. Slider; 29. ​​Contact plate; 30. Slide groove. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] Example 1

[0025] like Figure 1-4 As shown, this utility model provides a concrete crack width measuring instrument, including a support column 1, a support plate 2 movably connected to the top of the support column 1, a connecting nut 3 movably connected to one side of the top of the support plate 2, a first mounting groove 4 opened on the top of one side of the support plate 2, a cylinder 5 fixedly connected to the other side of the support plate 2, a transmission rod 6 fixedly connected to the output end of the cylinder 5, and a connecting plate 7 fixedly connected to one end of the transmission rod 6.

[0026] The first mounting groove 4 is fixedly connected to a slide rod 10, the outer wall of the slide rod 10 is slidably connected to a hydraulic lifting rod 8, the outer wall of the hydraulic lifting rod 8 is fixedly connected to an insert rod 9, and the other side of the top of the support plate 2 is provided with a mounting hole 11.

[0027] The inner wall of the first mounting groove 4 is provided with a sliding groove 30, and the insertion rod 9 is movably inserted into the inside of the sliding groove 30. The outer wall of the hydraulic lifting rod 8 is fixedly connected to one side of the connecting plate 7.

[0028] In this implementation, when using the measuring instrument, the location of the crack to be measured is first determined. Then, the support column 1 is installed on one side of the crack for fixed support. Then, the connecting nut 3 is rotated to adjust the installation direction of the support plate 2. The hydraulic lifting rod 8 is adjusted by pushing it through the cylinder 5 on one side, changing the installation position of the hydraulic lifting rod 8 inside the first mounting groove 4, and moving it directly above the crack. The hydraulic lifting rod 8 is pulled by the transmission rod 6, eliminating the need for manual adjustment and reducing slippage due to terrain. Compared with existing devices, where manual handling results in an incorrect measurement position and deviations in measurement data, this device eliminates the need for manual handling, ensuring that the bottom of the hydraulic lifting rod 8 is precisely aligned with the top of the crack, facilitating accurate measurement of the crack later.

[0029] Example 2

[0030] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a second mounting groove 13 is provided inside the support column 1, a bottom box 14 is fixedly connected to the bottom of the support column 1, a hydraulic telescopic rod 15 is fixedly connected inside the second mounting groove 13, a piston 16 is fixedly connected to the bottom of the hydraulic telescopic rod 15, a connecting frame 18 is fixedly connected to the inner wall of the second mounting groove 13, a sleeve 17 is fixedly connected to one side of the connecting frame 18, an adsorption rubber 19 is fixedly connected to the bottom of the sleeve 17, and a concave hole 20 is provided on the top of the adsorption rubber 19.

[0031] The piston 16 is movably connected to the inside of the sleeve 17, and the adsorption rubber 19 is installed inside the base box 14.

[0032] In this embodiment, the support column 1 first determines the installation position of the device. Its internal hydraulic telescopic rod 15 pushes the bottom piston 16 down towards the bottom of the sleeve 17, causing the bottom adsorption rubber 19 to deform and adsorb onto the ground, thereby the bottom box 14 is stably supported on the ground.

[0033] Example 3

[0034] like Figure 1-4As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a connecting cylinder 12 is fixedly connected to the bottom of the hydraulic lifting rod 8, an image acquisition module 21 is fixedly connected inside the connecting cylinder 12, a connecting rod 22 is fixedly connected to the bottom of the image acquisition module 21, a contact 23 is fixedly connected to the bottom of the connecting rod 22, and a receiver 24 is fixedly connected to the top of the image acquisition module 21.

[0035] The receiver 24 has a mounting rail 25 inserted into its top interior. Motors 26 are fixedly connected to both ends of the receiver 24. A threaded rod 27 is fixedly connected to the output end of the motor 26. A slider 28 is movably connected to the outer wall of the threaded rod 27. A contact plate 29 is fixedly connected to the bottom of the slider 28.

[0036] The mounting rail 25 is fixedly installed inside the connecting cylinder 12, and the slider 28 is movably connected inside the mounting rail 25. Grooves are provided on both sides of the outer wall of the connecting cylinder 12.

[0037] In this embodiment, the contact 23 is inserted into the crack by pushing the top hydraulic lifting rod 8. The image acquisition module 21 takes a picture of the crack from the top and transmits the front image of the crack. At the same time, the motor 26 rotates to make the slider 28 slide, causing the contact plate 29 to adhere to the inner wall of the crack for distance measurement. The width of the crack is measured based on the distance between the two sets of contact plates 29, making the device more convenient.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A concrete crack width measuring instrument comprising a support column (1), characterized in that: The top of the support column (1) is movably connected with a support plate (2), one side of the top of the support plate (2) is movably connected with a connecting nut (3), one side of the top of the support plate (2) is provided with a first mounting slot (4), the other side of the support plate (2) is fixedly connected with a pneumatic cylinder (5), the output end of the pneumatic cylinder (5) is fixedly connected with a conveying rod (6), one end of the conveying rod (6) is fixedly connected with a connecting plate (7); The inside of the first mounting slot (4) is fixedly connected with a sliding rod (10), the outer wall of the sliding rod (10) is slidably connected with a hydraulic lifting rod (8), the outer wall of the hydraulic lifting rod (8) is fixedly connected with a plug rod (9), the other side of the top of the support plate (2) is provided with a mounting hole (11).

2. The concrete crack width measuring instrument according to claim 1, characterized in that: The inner wall of the first mounting slot (4) is provided with a sliding groove (30), the plug rod (9) is movably inserted into the sliding groove (30), and the outer wall of the hydraulic lifting rod (8) is fixedly connected with one side of the connecting plate (7).

3. The concrete crack width measuring instrument according to claim 1, characterized in that: The inside of the support column (1) is provided with a second mounting slot (13), the bottom of the support column (1) is fixedly connected with a bottom box (14), the inside of the second mounting slot (13) is fixedly connected with a hydraulic telescopic rod (15), the bottom of the hydraulic telescopic rod (15) is fixedly connected with a piston (16), the inner wall of the second mounting slot (13) is fixedly connected with a connecting frame (18), one side of the connecting frame (18) is fixedly connected with a sleeve (17), the bottom of the sleeve (17) is fixedly connected with an adsorbing rubber (19), and the top of the adsorbing rubber (19) is provided with a recess (20).

4. A concrete crack width measuring instrument according to claim 3, wherein: The piston (16) is movably connected in the sleeve (17), and the adsorbing rubber (19) is installed in the bottom box (14).

5. The concrete crack width measuring instrument of claim 1, wherein: The bottom of the hydraulic lifting rod (8) is fixedly connected with a connecting barrel (12), the inside of the connecting barrel (12) is fixedly connected with an image acquisition module (21), the bottom of the image acquisition module (21) is fixedly connected with a connecting rod (22), the bottom of the connecting rod (22) is fixedly connected with a contact (23), and the top of the image acquisition module (21) is fixedly connected with a receiver (24).

6. A concrete crack width measuring instrument according to claim 5, wherein: The inside of the receiver (24) is inserted with a mounting rail (25), both ends of the receiver (24) are fixedly connected with a motor (26), the output end of the motor (26) is fixedly connected with a threaded rod (27), the outer wall of the threaded rod (27) is movably connected with a sliding block (28), and the bottom of the sliding block (28) is fixedly connected with a contact plate (29).

7. A concrete crack width measuring instrument according to claim 6, wherein: The mounting rail (25) is fixedly installed in the inside of the connecting barrel (12), the sliding block (28) is movably connected in the inside of the mounting rail (25), and the outer wall of the connecting barrel (12) is provided with recesses on both sides.

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