Crack detection device for engineering quality management

Abstract

The utility model discloses a crack detection device for engineering quality management, which relates to the technical field of crack detection and comprises a shell, a measuring component is arranged in the shell, side plates are fixedly connected to the left side and the right side of the shell through screws, and a threading hole is formed in the middle of the side plate on the left side in a penetrating manner. A sliding groove is formed in the middle of the front side of the shell in a penetrating mode, a limiting groove is formed in the position, corresponding to the sliding groove, of the rear side of the shell in a penetrating mode, the measuring assembly comprises a sliding column fixedly connected between the two side plates, and a first sliding block is slidably connected to the left side of the surface of the sliding column; the right side of the surface of the sliding column is slidably connected with a second sliding block. The device has the advantages that compared with graduated scale reading and laser reading, the measuring precision is higher, reading is more objective and accurate, the influence of human subjective factors on the measuring result is reduced, and the device is small in size, convenient to carry and suitable for various different working environments and scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of crack detection, in particular to a crack detection device for engineering quality management. Background Art

[0002] Construction project quality inspection refers to the activities of testing the materials, components, equipment, and engineering entity quality, usage functions, etc. of the construction project to determine their quality characteristics in accordance with relevant national laws, regulations, mandatory standards for engineering construction and design documents. Among them, using crack measurement equipment to inspect the main body of the building and its accessories is one of the common inspection items.

[0003] A bridge crack detection device disclosed in a Chinese patent (CN202321898961.X) includes a transport seat and two sliders, wherein the upper end face of the transport seat is rotatably connected to a rotating shaft, the upper end face of the rotating shaft is fixedly connected to a fixed seat, the front and rear outer walls of the fixed seat are fixedly connected to a storage cylinder, the outer walls on both sides of the fixed seat are rotatably provided with measuring arms, the upper end face of the fixed seat is fixedly connected to clamps, the outer walls on one side of the two measuring arms are fixedly connected to limit columns, the lower ends of the two sliders are threaded with measuring rods, the two measuring rods are slidably sleeved with indicating rods, the lower end face of the transport seat is rotatably connected to a pulley, and the inner diameter of the storage cylinder is smaller than the outer diameter of the sleeve at the lower end of the slider and not smaller than the outer diameter of the measuring rod. The bridge crack detection device described in the utility model has the functions of being convenient to unfold and use, and being convenient to store and reduce space occupation, and is convenient for transportation, and is practical.

[0004] However, there are still some shortcomings. The device uses a ruler to read the width of the crack. The accuracy of the ruler is usually limited by the scale spacing, and it is impossible to accurately measure the width of very small cracks, especially tiny cracks. If the cracks are not distributed along a plane but have curves or irregular shapes, it will become difficult to measure using the above device and may cause large errors. In addition, the device is large in size and not easy to carry. Utility Model Content

[0005] In order to solve the above technical problems, a crack detection device for engineering quality management is provided, which solves the problem that the accuracy of the current scale is usually limited by the scale spacing and cannot accurately measure the width of very small cracks, especially tiny cracks. If the cracks are not distributed along a plane but have curves or irregular shapes, it will become difficult to measure using the above device and may cause large errors. The device is large in size and inconvenient to carry.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a crack detection device for engineering quality management, including a shell, a measuring component is arranged inside the shell, the left and right sides of the shell are fixedly connected with side panels by screws, a threading hole is penetrated through the middle of the left side panel, a sliding groove is penetrated through the middle of the front side of the shell, and a limiting groove is penetrated through the rear side of the shell at a position corresponding to the sliding groove, the measuring component includes a sliding column fixedly connected between the two side panels, a first sliding block is slidably connected to the left side of the surface of the sliding column, and a second sliding block is slidably connected to the right side of the surface of the sliding column.

[0007] Preferably, the top of the first sliding block is fixedly connected to a mounting bracket, and an infrared rangefinder is fixedly mounted on the upper end of the mounting bracket.

[0008] Preferably, a target is fixedly connected to the top of the second sliding block, and the target and the infrared rangefinder are located on the same horizontal line.

[0009] Preferably, a first detection probe is fixedly connected to the bottom of the first sliding block, and a second detection probe is fixedly connected to the bottom of the second sliding block.

[0010] Preferably, a first pinching rod is fixedly connected to the middle portion of the front side of the first sliding block, and a second pinching rod is fixedly connected to the middle portion of the front side of the second sliding block, and the first pinching rod and the second pinching rod are arranged inside the sliding groove.

[0011] Preferably, a first limit block is fixedly connected to the middle portion of the rear side of the first sliding block by screws, and a second limit block is fixedly connected to the middle portion of the rear side of the second sliding block by screws, and both the first limit block and the second limit block are slidably connected to the inside of the limit groove.

[0012] Preferably, a compression spring is sleeved between the outer surface of the sliding column and the first sliding block and the second sliding block, the left side of the compression spring is fixedly connected to the right side of the first sliding block, and the right end of the compression spring is fixedly connected to the left side of the second sliding block.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. The utility model inserts the first detection probe and the second detection probe into the crack, and uses a compression spring as a power source to push the first detection probe and the second detection probe close to the inner walls on both sides of the crack, and then uses an infrared rangefinder to measure the width of the crack. This can achieve a more accurate measurement of the crack width, has higher measurement accuracy than a ruler, and the reading is more objective and accurate, reducing the influence of human subjective factors on the measurement results.

[0015] 2. The device of the utility model is small and easy to carry. The small-volume device is usually simple in design, light in structure, simple to operate, not restricted by space, can be operated in a small working area, and is suitable for a variety of different working environments and scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0018] Figure 3 It is a schematic diagram of the structure of the measuring component in the utility model;

[0019] Figure 4 It is a schematic structural diagram of the measuring component in the utility model from another perspective.

[0020] The numbers in the figure are: 1. shell; 2. side panel; 3. threading hole; 4. sliding slot; 5. measuring component; 501. sliding column; 502. first sliding block; 503. first pinch rod; 504. mounting bracket; 505. infrared rangefinder; 506. first limit block; 507. second sliding block; 508. target; 509. second pinch rod; 510. compression spring; 511. second limit block; 512. first detection probe; 513. second detection probe; 6. limit slot. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Reference Figure 1-4 As shown, a crack detection device for engineering quality management includes a shell 1, a measuring component 5 is arranged inside the shell 1, side panels 2 are fixedly connected to the left and right sides of the shell 1 by screws, a threading hole 3 is penetrated in the middle of the left side panel 2, a sliding groove 4 is penetrated in the middle of the front side of the shell 1, and a limiting groove 6 is penetrated at a position corresponding to the sliding groove 4 on the rear side of the shell 1. The measuring component 5 includes a sliding column 501 fixedly connected between the two side panels 2, a first sliding block 502 is slidably connected to the left side of the surface of the sliding column 501, and a second sliding block 507 is slidably connected to the right side of the surface of the sliding column 501.

[0023] It is worth noting that the top of the first sliding block 502 is fixedly connected to the mounting bracket 504, and an infrared rangefinder 505 is fixedly installed on the upper end of the mounting bracket 504. The signal transmission line of the infrared rangefinder 505 can pass through the threading hole 3 to connect with an external display mechanism, or to connect with an external wireless transmission module.

[0024] It is worth noting that a target 508 is fixedly connected to the top of the second sliding block 507 , and the target 508 and the infrared rangefinder 505 are located on the same horizontal line, and the laser emitting end of the infrared rangefinder 505 is flush with the side of the first detection probe 512 away from the compression spring 510 .

[0025] It is worth noting that a first detection probe 512 is fixedly connected to the bottom of the first sliding block 502 , and a second detection probe 513 is fixedly connected to the bottom of the second sliding block 507 . The side of the second detection probe 513 away from the compression spring 510 is flush with the laser reflection surface of the target 508 .

[0026] Specifically, a first pinching rod 503 is fixedly connected to the middle of the front side of the first sliding block 502 , and a second pinching rod 509 is fixedly connected to the middle of the front side of the second sliding block 507 . The first pinching rod 503 and the second pinching rod 509 are arranged inside the sliding groove 4 .

[0027] Specifically, the middle part of the rear side of the first sliding block 502 is fixedly connected to the first limit block 506 by screws, and the middle part of the rear side of the second sliding block 507 is fixedly connected to the second limit block 511 by screws. The first limit block 506 and the second limit block 511 are both slidably connected to the inside of the limit groove 6. Through the cooperation of the first limit block 506, the second limit block 511 and the limit groove 6, the movement of the first sliding block 502 and the second sliding block 507 can be made smoother, and the positions of the first sliding block 502 and the second sliding block 507 can also be limited to prevent shaking from causing the positions of the first detection probe 512 and the second detection probe 513 to shift, thereby affecting the measurement accuracy.

[0028] Specifically, a compression spring 510 is sleeved between the outer surface of the sliding column 501 and the first sliding block 502 and the second sliding block 507. The left side of the compression spring 510 is fixedly connected to the right side of the first sliding block 502, and the right end of the compression spring 510 is fixedly connected to the left side of the second sliding block 507. The spring provides power to force the first sliding block 502 and the second sliding block 507 to move relative to each other, ensuring that the first detection probe 512 and the second detection probe 513 can cling to the inner wall of the crack.

[0029] Working principle: When in use, first pinch the first pinch rod 503 and the second pinch rod 509 with your fingers so that the first sliding block 502 and the second sliding block 507 press the compression spring 510, and the first detection probe 512 and the second detection probe 513 are tightly together. Then, insert the first detection probe 512 and the second detection probe 513 into the crack. The compression spring 510 will restore its elasticity to push the first sliding block 502 and the second sliding block 507 on both sides to move, so that the first detection probe 512 and the second detection probe 513 are tightly against the inner walls on both sides of the crack. Then, the infrared rangefinder 505 emits a laser to illuminate the target 508 to measure the width of the crack.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A crack detection device for engineering quality management, characterized in that: The invention comprises a shell (1), wherein a measuring assembly (5) is arranged inside the shell (1), and the left and right sides of the shell (1) are fixedly connected to side panels (2) by screws, a threading hole (3) is provided through the middle of the left side panel (2), a sliding groove (4) is provided through the middle of the front side of the shell (1), and a limiting groove (6) is provided through the rear side of the shell (1) at a position corresponding to the sliding groove (4), and the measuring assembly (5) comprises a sliding column (501) fixedly connected between the two side panels (2), a first sliding block (502) is slidably connected to the left side of the surface of the sliding column (501), and a second sliding block (507) is slidably connected to the right side of the surface of the sliding column (501).

2. A crack detection device for engineering quality management according to claim 1, characterized in that: The top of the first sliding block (502) is fixedly connected to a mounting bracket (504), and an infrared rangefinder (505) is fixedly mounted on the upper end of the mounting bracket (504).

3. A crack detection device for engineering quality management according to claim 1, characterized in that: A target (508) is fixedly connected to the top of the second sliding block (507), and the target (508) and the infrared rangefinder (505) are located on the same horizontal line.

4. A crack detection device for engineering quality management according to claim 1, characterized in that: The bottom of the first sliding block (502) is fixedly connected to a first detection probe (512), and the bottom of the second sliding block (507) is fixedly connected to a second detection probe (513).

5. A crack detection device for engineering quality management according to claim 1, characterized in that: A first pinching rod (503) is fixedly connected to the middle of the front side of the first sliding block (502), and a second pinching rod (509) is fixedly connected to the middle of the front side of the second sliding block (507). The first pinching rod (503) and the second pinching rod (509) are arranged inside the sliding groove (4).

6. A crack detection device for engineering quality management according to claim 1, characterized in that: The middle part of the rear side of the first sliding block (502) is fixedly connected to a first limiting block (506) by means of screws, and the middle part of the rear side of the second sliding block (507) is fixedly connected to a second limiting block (511) by means of screws. Both the first limiting block (506) and the second limiting block (511) are slidably connected to the inside of the limiting groove (6).

7. A crack detection device for engineering quality management according to claim 1, characterized in that: A compression spring (510) is sleeved between the outer surface of the sliding column (501) and the first sliding block (502) and the second sliding block (507); the left side of the compression spring (510) is fixedly connected to the right side of the first sliding block (502); and the right end of the compression spring (510) is fixedly connected to the left side of the second sliding block (507).

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