Crack width measuring device convenient to measure
By designing a crack width measuring device that is easy to measure, using auxiliary fixing devices and movable measuring rulers, the problems of inaccurate gap measurement and hand fatigue are solved, and accurate gap width measurement and the effect of reducing hand fatigue is achieved.
Patent Information
- Application Number
- CN202422410141.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In construction, existing gap measurement devices are inaccurate due to position deviation of the measurement probe, and hand fatigue caused by long-term hand holding, making it difficult to accurately measure the gap width.
A crack width measurement device is designed for easy measurement. The detection device is fixed with the wall through auxiliary fixing devices. Combined with a movable measuring ruler and data receiving device, the clamping position is adjusted using the clamping member and the limiting member to measure the gaps in different inclinations and reduce hand fatigue.
It realizes accurate measurement of gap width without relying on handheld, reducing hand fatigue and improving measurement accuracy and efficiency.
Smart Images

Figure CN223258794U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction engineering detection, in particular to a crack width measuring device which is convenient for measurement. Background Art
[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.
[0003] During the construction process, due to differences in materials, processes, and environmental factors, gaps may appear in building walls. The location and size of these gaps vary depending on the cause, and their impact on the building walls also varies. Therefore, gap detection is necessary during the construction process to determine their impact on the building. However, due to the position of the measuring probe during measurement, workers are required to move the measuring probe to the appropriate position so that the gap is located at the scale line, making it easier for workers to read the reading. However, for gaps in different locations, the force required to adjust the position varies. Prolonged hand pressure can affect the accuracy of subsequent gap measurements. Therefore, how to facilitate gap measurement and alleviate worker hand fatigue remains a challenge.
[0004] For the gap width measuring instrument, the scale line on the measuring instrument is fixed at one position. When in use, the position between the measuring probe and the gap is adjusted to achieve alignment between the gap and the scale line. However, during the alignment process, the edge of the gap may be in the middle of the two scale lines. At this time, the staff is required to estimate the length of the gap. When both sides of the gap are in the middle of the scale lines, the gap length will be inaccurate. Therefore, how to conveniently measure the width of the gap is a problem to be solved. Utility Model Content
[0005] The present invention aims to provide a crack width measuring device that facilitates measurement. The device secures the detection device to the wall using an auxiliary fixing device, eliminating the need for workers to constantly hold onto the wall during crack detection, thus alleviating hand fatigue. The measuring scale of the device and the display screen of a data receiving device move relative to each other. Furthermore, the device can be used to measure cracks of varying inclination angles by adjusting the different engaging positions of the engaging member while the rotating member slides. Because the measuring scale and the data receiving device can move relative to each other, cracks can be measured by adjusting the position of the measuring scale without specifically aligning the scale lines.
[0006] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:
[0007] A crack width measuring device that is easy to measure includes a detection device and a data receiving device. The detection device is connected to the data receiving device and transmits detection data to the data receiving device; an auxiliary fixing device is provided on the outside of the detection device, and the auxiliary fixing device is connected to the measurement wall; an auxiliary measuring device and a measuring component are provided on the outside of the data receiving device, and the auxiliary measuring device is connected to the measuring component; a slide is provided in the auxiliary measuring device, and a slide is provided at one end of the auxiliary measuring device. Both ends of the measuring component are arranged in the slide, and one end of the measuring component is connected to the slide limit; the measuring component includes a measuring ruler and a limit piece, and the measuring ruler and the limit piece are slidably connected.
[0008] A limit groove is also provided on one side of the slideway, which contacts the measuring component and limits the measuring component. The slideway in the auxiliary measuring device is set in a "T" shape.
[0009] The measuring assembly also includes a rotating part and a clamping part. One end of the rotating part is rotatably connected to the limiting part, and the other end of the rotating part is connected to the slide groove; one end of the clamping part is connected to the limiting part, and the other end of the clamping part is clamped to the limiting groove.
[0010] The measuring ruler is provided with scale lines and is made of transparent material. The limiter is made of elastic material.
[0011] The auxiliary fixture is slidably connected to the outer wall of the detection device, and a suction cup is provided at the bottom of the auxiliary fixture, which is detachably connected to the measured wall through the suction cup. The suction cups are symmetrically arranged on both sides of the bottom of the auxiliary fixture.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] This device secures the detection device to the wall using an auxiliary fixing device, eliminating the need for workers to constantly hold onto the wall during crack detection, thus reducing hand fatigue. The measuring scale of this device and the display screen of the data receiving device move relative to each other. Furthermore, the device can be used to measure cracks of varying inclination angles by adjusting the different snap-on positions of the snap-on parts while the rotating part slides. Because the measuring scale and the data receiving device can move relative to each other, cracks can be measured without specifically aligning the scale lines. The position of the measuring scale can be adjusted to allow for accurate crack measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Attachment Figure 1 This is a schematic diagram of a crack width measuring device that is convenient for measurement in the utility model.
[0015] Attachment Figure 2 It is a schematic diagram of the position of the data receiving device in the utility model.
[0016] Attachment Figure 3It is a schematic diagram of the auxiliary measuring device in the utility model.
[0017] Attachment Figure 4 It is a cross-sectional view of the auxiliary measuring device in the utility model.
[0018] Attachment Figure 5 It is a schematic diagram of the position of the detection device in the utility model.
[0019] Attachment Figure 6 It is a schematic diagram of the position of the rotating part in the utility model.
[0020] Reference numerals shown in the accompanying drawings:
[0021] 1. Detection device; 2. Data receiving device; 3. Auxiliary fixing device; 4. Auxiliary measuring device; 5. Measuring component; 6. Slide; 7. Slide; 8. Measuring ruler; 9. Limiting member; 10. Limiting groove; 11. Rotating member; 12. Clamping member; 13. Suction cup. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.
[0023] The present invention provides a convenient crack width measurement device. The main structure comprises a detection device 1, a data receiving device 2, an auxiliary fixing device 3, an auxiliary measuring device 4, and a measuring assembly 5. The detection device 1 contacts a wall and measures the width of a crack in the wall. The detection device 1 and the data receiving device 2 are connected via a circuit, transmitting detected data to the data receiving device 2. The data receiving device 2 amplifies the crack, allowing the measuring assembly 5, located outside the data receiving device 2, to measure the crack width. Because the width and position of a crack are uncertain, the measuring assembly 5 is moved to facilitate measurement, ensuring that it aligns with the crack in the wall.
[0024] An auxiliary fixture 3 is provided on the outside of the detection device 1. The auxiliary fixture 3 is slidably connected to the outer wall bracket of the detection device 1 and secures the detection device 1 to the wall, thereby reducing manual fatigue caused by constant hand-holding. Furthermore, the auxiliary fixture 3 connects the detection device 1 to the wall, allowing the operator to better adjust the measuring assembly 5 to measure the crack. A suction cup 13 is provided at the bottom of the auxiliary fixture 3, allowing the auxiliary fixture 3 to connect to the wall through the suction cup 13. To measure other locations, the detection device 1 can be separated from the wall by simply flipping up the sides of the suction cup 13 or pulling it upward. To minimize the impact of the suction cup 13 on the crack, the suction cups 13 are symmetrically arranged on both sides of the bottom of the auxiliary fixture 3. No suction cup 13 is provided in the middle, allowing the crack to pass through the middle. In some cases, if contact between the crack and the suction cup 13 is unavoidable, the crack can be made to contact the surface of the suction cup 13. When measuring some wall cracks, the naked eye cannot clearly observe them due to the high measurement height or distance. Therefore, a groove is provided in the middle of the auxiliary fixing device 3. The groove is set so that the gap is located in the center of the auxiliary fixing device 3 for easy observation and installation by the staff. When the auxiliary fixing device 3 is no longer in contact with the wall, in order to reduce contact, an "L"-shaped groove is provided on the outer wall of the detection device 1, and a protrusion that adapts to the "L"-shaped groove is provided on the inner side wall where the auxiliary fixing device 3 contacts the detection device 1. The protrusion slides within the "L"-shaped groove, allowing the auxiliary fixing device 3 to be retracted when not in use, avoiding contact with the wall.
[0025] The data receiving device 2 is externally provided with an auxiliary measuring device 4 and a measuring assembly 5. The auxiliary measuring device 4 is compatible with the data receiving device 2 and wraps around the data receiving device 2, leaving space for the display screen, bottom position, connection lines, etc. The auxiliary measuring device 4 is internally provided with a chute 6, so that both ends of the measuring assembly 5 are arranged in the chute 6 and move along the chute 6. In addition, a slide 7 is also provided on the top surface of one end of the auxiliary measuring device 4. A limit groove 10 is also provided on one side of the slide 7, so that one side of the limit assembly is engaged by the limit groove 10, and the other side slides in the chute 6. By adjusting the sliding of the limit assembly in the chute 6, the limit assembly can measure cracks with different inclination angles. In order to accommodate the horizontal measurement of cracks of different heights, a plurality of clamping members 12 are provided on one side of the slide 7, so that the limit assembly can be engaged at different positions, thereby measuring the cracks. In order to facilitate the movement of the limit assembly in the auxiliary measuring device 4 and enable one end of the limit assembly to be snapped into the slide groove 6, the slide groove 6 is set in a "T" shape. After one end of the limit assembly is placed in, it can slide in the slide groove 6, and one end of the limit assembly can be snapped into the slide groove 6.
[0026] The measuring assembly 5 includes a rotating member 11, a clamping member 12, a measuring ruler 8, and a stopper 9. The measuring ruler 8 is scaled, allowing the operator to read the crack width using the measuring ruler 8. When both ends of the crack are centered on the scale, the scale is moved on the stopper 9 to align the scale lines with the crack edges to minimize errors. The stopper 9 extends through the measuring ruler 8 and limits its position. To accommodate various lengths, the stopper 9 is made of an elastic material. Its ends are connected to the rotating member 11 and the clamping member 12, respectively. The clamping member 12 engages with the slideway 7 and is positioned by a stopper 10 on one side of the slideway 7, allowing one end of the stopper 9 to be fixed. The rotating member 11 is arranged in a "T" shape, allowing it to adapt to the chute 6 in the auxiliary measuring device 4 and thus be engaged within the chute 6. Since the slideway 7 is strip-shaped, the rotating member 11 slides within the chute 6, thereby adjusting the overall inclination angle of the limiter 9, so that the measuring ruler 8 on the limiter 9 can measure perpendicular to the crack, thereby improving the accuracy of crack measurement. The rotating member 11 and the limiter 9 are connected by a thread, allowing the rotating member 11 to enter the chute 6 through the opening of the chute 6 and then rotate 90 degrees to engage the rotating member 11 inside the chute 6.
[0027] Detailed instructions for use:
[0028] Install the various components, and when measuring the crack width, first place the detection device 1 at the crack location so that the complete crack can be seen on the display screen of the data receiving device 2. Then, press the detection device 1 with two fingers, and use the other two fingers to rotate the auxiliary fixing device 3 so that the suction cup 13 on the auxiliary fixing device 3 is adsorbed on the wall, thereby ensuring the fixation of the detection device 1. Then adjust the contact position between the clamping member 12 and the limit groove 10 at one end of the slide 7 so that the measuring ruler 8 can measure the width of the crack. The other end of the limit member 9 can slide in the slide 6, so that when the rotating member 11 slides to the appropriate position, the limit member 9 is perpendicular to the crack, and then the measuring ruler 8 is moved to measure the gap of the crack. When the measurement is completed, separate the auxiliary fixing device 3 from the wall, and repeat this operation to measure the crack.
[0029] In summary, the present device fixes the detection device 1 to the wall through the auxiliary fixing device 3, so that the staff does not need to hold the wall at all times when detecting cracks, which relieves hand fatigue. The measuring ruler 8 of the present device moves relative to the display screen of the data receiving device 2, and the present device can be used to measure cracks of different inclination angles by adjusting the different clamping positions of the clamping member 12 when the rotating member 11 slides. Since the measuring ruler 8 and the data receiving device 2 can move relative to each other, the crack does not need to be specifically marked when measuring, and the crack can be measured by adjusting the position of the measuring ruler 8.
Claims
1. A crack width measuring device convenient for measurement, comprising a detection device (1) and a data receiving device (2), wherein the detection device (1) is connected to the data receiving device (2) and transmits detection data to the data receiving device (2); characterized in that: An auxiliary fixing device (3) is provided on the outside of the detection device (1), and the auxiliary fixing device (3) is connected to the measurement wall; an auxiliary measuring device (4) and a measuring component (5) are provided on the outside of the data receiving device (2), and the auxiliary measuring device (4) is connected to the measuring component (5); A chute (6) is provided in the auxiliary measuring device (4), a slideway (7) is provided at one end of the auxiliary measuring device (4), both ends of the measuring component (5) are arranged in the chute (6), and one end of the measuring component (5) is limitedly connected to the slideway (7); The measuring assembly (5) comprises a measuring ruler (8) and a position-limiting member (9), and the measuring ruler (8) and the position-limiting member (9) are slidably connected.
2. A crack width measuring device according to claim 1, characterized in that: A limiting groove (10) is further provided on one side of the slideway (7), and the limiting groove (10) contacts the measuring component (5) and limits the measuring component (5).
3. A crack width measuring device according to claim 2, characterized in that: The slide groove (6) in the auxiliary measuring device (4) is arranged in a "T" shape.
4. A crack width measuring device according to claim 3, characterized in that: The measuring assembly (5) further comprises a rotating member (11) and a clamping member (12); one end of the rotating member (11) is rotatably connected to the limiting member (9), and the other end of the rotating member (11) is connected to the sliding groove (6); one end of the clamping member (12) is connected to the limiting member (9), and the other end of the clamping member (12) is clamped to the limiting groove (10).
5. A crack width measuring device according to claim 4, characterized in that: The measuring ruler (8) is provided with scale lines, and the measuring ruler (8) is made of a transparent material.
6. A crack width measuring device according to claim 5, characterized in that: The limiting member (9) is made of elastic material.
7. A crack width measuring device according to any one of claims 1 to 6, characterized in that: The auxiliary fixing device (3) is slidably connected to the outer wall of the detection device (1); a suction cup (13) is provided at the bottom of the auxiliary fixing device (3); and the auxiliary fixing device (3) is detachably connected to the measured wall via the suction cup (13).
8. The crack width measuring device according to claim 7, characterized in that: The suction cups (13) are symmetrically arranged on both sides of the bottom of the auxiliary fixing device (3).