Device for measuring length and width of crack on curved surface component

Abstract

The utility model relates to the technical field of crack measurement, in particular to a device for measuring the length and width of a crack on a curved surface component, which comprises a measuring sheet and an auxiliary rope. The measuring sheet is made of a transparent material, the measuring sheet has elasticity, and scale marks are arranged on the measuring sheet; the auxiliary rope is provided with a viscous substance, and the auxiliary rope can be adhered to the measuring sheet through the viscous substance. Through cooperation of the transparent and elastic measuring sheet and the auxiliary rope, the problem that the length of the crack in the curved surface component is difficult to measure is solved, compared with a traditional measuring mode, the device is easy to operate, the measuring precision is improved, and the stability of a measuring result is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of crack measurement technology, and in particular to a device for measuring the length and width of cracks on curved components. Background Technology

[0002] In real-world construction projects, cracks in building components are quite common. Accurately measuring crack length is crucial for accurately assessing the potential impact of cracks on the component itself and the overall structure.

[0003] However, when cracks appear on curved surfaces of building components, or on components with curved features such as tunnel segments, pipes, and circular piers, traditional measurement methods relying primarily on rulers and measuring tapes reveal numerous drawbacks. During operation, due to the presence of curved components, the extension path of cracks is often tortuous and irregular, making it difficult to place a ruler or measuring tape stably and securely at the crack location. This results in extremely inconvenient operation, low measurement accuracy, and difficulty in guaranteeing the stability of measurement results. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that the length of cracks on curved components is difficult to measure using a ruler or tape measure in the prior art, resulting in extremely inconvenient measurement operations, low measurement accuracy, and difficulty in ensuring the stability of measurement results. This invention provides a device for measuring the length and width of cracks on curved components.

[0005] This utility model provides a device for measuring the length and width of cracks on curved surface components, comprising:

[0006] The measuring sheet is made of a transparent material, is elastic, and has scale lines on it.

[0007] An auxiliary rope is provided with an adhesive substance, which allows the auxiliary rope to be adhered to the measuring plate.

[0008] This invention provides a device for measuring the length and width of cracks on curved surfaces. The measuring plate is made of a transparent material, so when one side of the measuring plate is attached to the location of a crack on the curved surface, the direction or path of the crack can be directly observed through the measuring plate from the other side. The measuring plate is elastic, so it can be bent by external force to fit tightly onto the curved surface by pressing or wrapping; when the external force is removed, the measuring plate returns to its original shape, facilitating repeated use and reducing operating costs. When one side of the measuring plate is attached to the location of a crack on the curved surface, an auxiliary rope can be attached to the other side of the measuring plate and placed along the crack path on the curved surface. The auxiliary rope can be placed along the scale lines on the measuring plate, and the length of a predetermined segment of the auxiliary rope can be measured through the scale lines. Using the scale lines on the measuring plate, no additional length measuring tools are needed, enabling rapid measurement and improving measurement efficiency. The width of the crack can also be measured through the scale lines. Therefore, this invention solves the problem of measuring the length of cracks on curved components by using the transparent and elastic measuring plate and the auxiliary rope. Compared with traditional measurement methods, this device is simple to operate, improves measurement accuracy, and enhances the stability of measurement results.

[0009] The shape of the measuring piece can be circular, rectangular, square, or polygonal, etc.

[0010] The auxiliary rope can be nylon rope, PE rope, or Kevlar rope.

[0011] The adhesive material is a reusable adhesive that does not easily leave residue, such as pressure-sensitive removable adhesive, microencapsulation adhesive, or silicone gel.

[0012] The measuring sheet has a certain degree of elasticity and toughness, and can be bent after being subjected to force and return to its original shape after the force is removed. For example, it can be made of thermoplastic polyurethane elastomer (TPU) sheet, polycarbonate (PC) sheet, silicone sheet or transparent PVC sheet.

[0013] Preferably, the measuring plate has multiple layers of thin films, with the scale lines located on the films. The films can be adsorbed onto the measuring plate, and adjacent layers can be adsorbed together. This adsorption allows the films to be quickly attached to and easily removed from the measuring plate. The multi-layered film design also allows for quick measurement if the top layer becomes unusable due to contamination, damage, or drawing; simply peeling off the top layer exposes the next layer, enabling rapid re-measurement and significantly improving measurement efficiency.

[0014] The film is a thin, transparent material that can be electrostatically adsorbed. The adsorption principle of the film is that the surface of the film is electrostatically charged through surface corona treatment, allowing it to adhere to a smooth surface. Examples include PET (polyethylene terephthalate) electrostatic film, PE (polyethylene) electrostatic film, and PVC (polyvinyl chloride) electrostatic film.

[0015] Preferably, the film is a PET electrostatic film. Compared to PE and PVC electrostatic films, PET electrostatic films have higher transparency.

[0016] Preferably, the measuring piece is surrounded by several fasteners, each with an adhesive layer for bonding the fasteners to the curved surface component. This design, using the fasteners, securely fixes the measuring piece to the curved surface component. This frees up the operator's hands to focus on measuring crack length, allowing a single person to easily complete the entire operation.

[0017] Preferably, the adhesive material is a pressure-sensitive removable adhesive or a silicone gel material. Compared to microencapsulation adhesives, the pressure-sensitive removable adhesive and the silicone gel material have the advantage of lower cost. Furthermore, the technology of the pressure-sensitive removable adhesive and the silicone gel material is more mature and stable, which is conducive to the widespread adoption of this device.

[0018] Preferably, the measuring sheet is a silicone sheet or a transparent PVC sheet.

[0019] Preferably, the thickness of the measuring piece is 0.8mm-2.5mm.

[0020] Preferably, the distance between two adjacent first scale lines is 1mm-10mm, and the distance between two adjacent second scale lines is 1mm-10mm.

[0021] Preferably, the auxiliary rope is a Kevlar rope. Compared to nylon rope and PE rope, the Kevlar rope has a lower elongation rate and hardly elongates under stress, making the measurement of crack length more accurate.

[0022] Preferably, the planar shape of the measuring piece is a square with a side length of 15cm-25cm.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This invention provides a device for measuring the length and width of cracks on curved surfaces. By using a transparent and flexible measuring plate and an auxiliary rope, the device solves the problem of measuring the length of cracks on curved surfaces. Compared with traditional measurement methods, this device is simple to operate, improves measurement accuracy, and enhances the stability of measurement results. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a device for measuring the length and width of cracks on curved components.

[0026] Marked in the image:

[0027] 1-Measuring plate,

[0028] 101 - First graduation mark, 102 - Second graduation mark, 103 - Thin film.

[0029] 2-Auxiliary rope,

[0030] 3-Factors. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0032] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0034] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0035] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0036] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0037] Example 1

[0038] like Figure 1 As shown, a device for measuring the length and width of cracks on curved components includes a measuring plate 1 and an auxiliary rope 2.

[0039] The measuring piece 1 is made of transparent material and is elastic. The measuring piece 1 has scale lines on it.

[0040] The auxiliary rope 2 is provided with an adhesive substance, which allows it to be attached to the measuring piece 1.

[0041] In an optional embodiment, the measuring piece 1 may have multiple layers of thin films 103, with the scale lines located on the thin films 103. The thin films 103 can be adsorbed onto the measuring piece 1, and adjacent layers of thin films 103 can be adsorbed and connected. Specifically, the upper layer of thin film 103 can be adsorbed onto the lower layer of thin film 103. The shape of the thin film 103 is consistent with the shape of the measuring piece 1, and the outer contour of the thin film 103 is 5mm-20mm smaller than the outer contour of the measuring piece 1. The surface of the measuring piece 1 should be relatively smooth to facilitate the adsorption of the thin films 103 onto the measuring piece 1. A raised edge can be provided at the corner of the thin film 103 to facilitate the separation of the multiple layers of thin films 103 from each other, or to facilitate the tearing of the thin film 103 from the measuring piece 1.

[0042] In an optional embodiment, the film 103 may be a PET electrostatic film.

[0043] In an optional embodiment, several fasteners 3 can be connected around the perimeter of the measuring piece 1. Each fastener 3 has an adhesive layer for bonding the fastener 3 to the curved surface component. Specifically, the fastener 3 can be a sheet-like structure made of the same material as the measuring piece 1, and the adhesive layer can be 3M double-sided tape. Specifically, one side of the 3M double-sided tape is bonded to the fastener 3, while the other side is used to bond to the curved surface component.

[0044] When the measuring piece 1 is rectangular, it can be equipped with four fixing members 3, which are respectively connected to the four corners of the measuring piece 1. The fixing members 3 are connected to the measuring piece 1 by a connecting strip. The angle between the extension direction of the connecting strip and the side of the measuring piece 1 can be 135°. The material and thickness of the connecting strip can be the same as those of the measuring piece 1.

[0045] In an optional embodiment, the adhesive material may be a pressure-sensitive removable adhesive or a silicone gel material. Specifically, the pressure-sensitive removable adhesive or the silicone gel material is uniformly wrapped around or attached to the surface of the auxiliary rope 2.

[0046] In an optional embodiment, the measuring piece 1 can be a silicone sheet or a transparent PVC sheet.

[0047] In an optional embodiment, the thickness of the measuring piece 1 can be 0.8mm-2.5mm, specifically 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.2mm, or 2.5mm.

[0048] In an optional embodiment, the scale lines may include first scale lines 101 and second scale lines 102 arranged perpendicularly to each other. Specifically, the distance between two adjacent first scale lines 101 is 1mm-10mm, and the specific distance can be 1mm, 2mm, 5mm, or 10mm. The distance between two adjacent second scale lines 102 is 1mm-10mm, and the specific distance can be 1mm, 2mm, 5mm, or 10mm.

[0049] In an optional implementation, the auxiliary rope 2 may be a Kevlar rope.

[0050] In an optional embodiment, the planar shape of the measuring piece 1 can be a square with a side length of 15cm-25cm, specifically 15cm, 18cm, 20cm, 22cm, or 25cm.

[0051] Example 2

[0052] This embodiment describes the method of using the device for measuring the length and width of cracks on curved components as described in Embodiment 1, including the following steps:

[0053] S1: Place the side of the measuring piece 1 without scale lines against the location of the crack on the curved surface component, and fix the measuring piece 1 in place using the fastener 3. It is important to note that the size and placement of the measuring piece 1 must completely cover the entire crack being measured.

[0054] S2: Starting from the beginning of the crack, use auxiliary rope 2 to attach one end of the auxiliary rope 2 to the other side of the measuring piece 1, and continue attaching the auxiliary rope 2 along the crack path until the end of the crack. After attaching, mark the end position of the crack on the auxiliary rope 2. Specifically, a marker clip can be used to clip onto the auxiliary rope 2 at the corresponding crack end position.

[0055] S3: Place the auxiliary rope 2 along the scale line on the measuring piece 1, measure the length from the starting end of the auxiliary rope 2 to the marked position through the scale line, and obtain the length value of the crack.

[0056] If it is found that the length of the auxiliary rope 2 from the starting end to the marked point exceeds the range of the scale lines during measurement, a segmented measurement method can be used. Specifically, the auxiliary rope 2 is folded into several segments of equal length, the length of one segment is measured, and then this segment length is multiplied by the number of segments to obtain the actual length of the crack.

[0057] This invention can also be used to measure the width of cracks on curved surfaces. In use, the side of the measuring piece 1 without scale lines is placed against the location of the crack on the curved surface, while ensuring that the scale lines on the measuring piece 1 are perpendicular to the direction of the crack's extension. The crack width can then be read.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for measuring the length and width of cracks on curved surface components, characterized in that, include: Measuring plate (1), the measuring plate (1) is made of transparent material, the measuring plate (1) is elastic, and the measuring plate (1) is provided with scale lines; An auxiliary rope (2) is provided with an adhesive substance, which allows the auxiliary rope (2) to be attached to the measuring piece (1).

2. The device for measuring the length and width of cracks on curved surface components according to claim 1, characterized in that, The measuring plate (1) is provided with multiple thin films (103), the scale line is located on the thin film (103), the thin film (103) can be adsorbed on the measuring plate (1), and adjacent two layers of the thin film (103) can be adsorbed and connected.

3. The device for measuring the length and width of cracks on curved surface components according to claim 2, characterized in that, The film (103) is a PET electrostatic film.

4. The device for measuring the length and width of cracks on curved surface components according to claim 1, characterized in that, The measuring piece (1) is connected to several fasteners (3) around its perimeter. The fasteners (3) have an adhesive layer on them, which is used to bond the fasteners (3) to the curved surface component.

5. A device for measuring the length and width of cracks on curved surface components according to any one of claims 1-4, characterized in that, The adhesive material is a pressure-sensitive removable adhesive or a silicone gel material.

6. The device for measuring the length and width of cracks on curved surface components according to claim 5, characterized in that, The measuring sheet (1) is a silicone sheet or a transparent PVC sheet.

7. The device for measuring the length and width of cracks on curved surface components according to claim 5, characterized in that, The thickness of the measuring piece (1) is 0.8mm-2.5mm.

8. The device for measuring the length and width of cracks on curved surface components according to claim 5, characterized in that, The scale lines include a first scale line (101) and a second scale line (102) arranged perpendicularly to each other.

9. The device for measuring the length and width of cracks on curved surface components according to claim 5, characterized in that, The auxiliary rope (2) is a Kevlar rope.

10. The device for measuring the length and width of cracks on curved surface components according to claim 5, characterized in that, The planar shape of the measuring piece (1) is a square with a side length of 15cm-25cm.

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