CN210981113U - A reading pastes card for crack monitoring - Google Patents
A reading pastes card for crack monitoring Download PDFInfo
- Publication number
- CN210981113U CN210981113U CN201921988341.9U CN201921988341U CN210981113U CN 210981113 U CN210981113 U CN 210981113U CN 201921988341 U CN201921988341 U CN 201921988341U CN 210981113 U CN210981113 U CN 210981113U
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- card
- crack
- reading
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- transparent card
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Abstract
The utility model discloses a card is pasted to reading for crack monitoring, including transparent card, be equipped with the vertical trip silk line that falls into its measuring terminal and stiff end on the transparent card, be equipped with the device of pasting of fixing it in crack one side on the transparent card of stiff end, be equipped with on the transparent card of measuring terminal with vertical trip silk line vertically horizontal trip silk line, still be equipped with the concentric semicircle scale mark that uses vertical trip silk line and horizontal trip silk line intersecting line as the centre of a circle on the transparent card, it is fixed with the gluing layer of transparent card one side to paste the dress. The utility model discloses both can be used to the slide caliper rule that crack width single was measured, also can be used to many times record crack seam width, monitor the fissured development of building structure component, have simple reliable, accurate directly perceived, low cost, the extensive characteristics of range of application, easily popularization and application.
Description
Technical Field
The utility model belongs to civil engineering monitoring field relates to a detection device, especially relates to a card is pasted to reading for crack monitoring.
Background
In the modern construction process, the construction (structure) cracks can be caused by the factors of overlong service life, aging material performance, temperature stress, uneven settlement of foundation, influence of peripheral construction and the like. The cracks affect the bearing capacity and the deformation resistance of the structure and threaten the safety of lives and properties, so that the understanding of the occurrence and the development conditions of the cracks has important significance.
In the detection of constructional engineering, the crack width gauge is a professional instrument for detecting the width of cracks and surface microscopic defects in a concrete structure, but the equipment is high in cost and inconvenient to carry, can only measure the cracks once, cannot accurately position the cracks, and is not suitable for long-term monitoring of the cracks. Common crack monitoring devices include strain gauges or fiber-optic displacement meters, and these monitoring devices have the disadvantages of high cost and complex process because the acquisition device and the demodulation device are required for acquiring data each time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at: aiming at the problems, the reading sticking card for monitoring the crack is provided, can be stuck on the crack and completes the monitoring work of the width of the crack.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a reading pastes card for crack monitoring which characterized in that: including transparent card, be equipped with the vertical trip silk line that falls into its measurement end and stiff end on the transparent card, be equipped with the device of pasting of fixing it in crack one side on the transparent card of stiff end, be equipped with on the transparent card of measurement end with vertical trip silk line vertically horizontal trip silk line, still be equipped with the concentric semicircle scale mark that uses vertical trip silk line and horizontal trip silk line intersecting line as the centre of a circle on the transparent card.
As an improvement, the sticking device is an adhesive layer fixed on one side of the transparent card.
As an improvement, the adhesive layer is made of acrylic acid adhesive.
As a refinement, the transparent card is a transparent plastic card.
As an improvement, rectangular scale marks perpendicular to the horizontal swimming thread lines are further arranged on the transparent card.
As an improvement, the scale of the concentric circles on the transparent card is in millimeter level, the minimum scale is 0.5mm, and the maximum measuring range is 20 mm.
As an improvement, the reading card is used for measuring and monitoring cracks of concrete structures, masonry structures and steel structures.
The utility model discloses have following advantage and positive effect:
① the utility model has wide application, and can be applied to crack monitoring of various buildings and structures;
② is particularly inexpensive;
③ is simple and convenient to use, and can monitor the structural crack without the cooperation of other instruments.
To sum up, the utility model has the characteristics of simple and reliable, accurate directly perceived, low cost, range of application are extensive, easily popularization and application.
Drawings
FIG. 1 is a front view of the reading card of the present invention;
FIG. 2 is a cross-sectional view of the reading card of the present invention;
the labels in the figure are: 1-fixed end, 2-measuring end, 3-vertical floating wire, 4-horizontal floating wire, 5-bonding material layer, 7-transparent plastic sheet, 8-concentric semicircular scale mark and 9-rectangular scale mark.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1 and 2, the reading subsides card for crack monitoring that this embodiment discloses, including transparent card, be equipped with on the transparent card and divide into its vertical trip silk thread 3 of measuring terminal 2 and stiff end 1, left fixed stiff end 1 and the measuring terminal 2 on right side promptly, be equipped with on the transparent card of stiff end 1 and fix its device of pasting in crack one side, be equipped with on the transparent card of measuring terminal 2 with vertical trip silk thread 3 vertically horizontal trip silk thread 4, still be equipped with on the transparent card and use vertical trip silk thread 3 and horizontal trip silk thread 4 line of crossing to be concentric semicircle scale mark 8 of centre of a circle, the scale unit of measuring terminal 2 is the millimeter.
The fixed end 1 is divided into two layers from outside to inside, and the two layers are respectively a transparent plastic sheet 7 and an adhesive material layer 5, the measuring end 2 is only provided with 7 layers of transparent plastic sheets and consists of 21 concentric semicircles, the minimum semicircular scale of the semicircular scale is 0.5mm, and the maximum semicircular scale is 20.0 mm. The spacing between the semi-circles is 1.0mm, i.e. the index is 1.0mm (not marked because of the undersize in the figure).
The adhesive material layer 5 of the present invention can be made of acrylic adhesive, such as 3M double-sided adhesive.
As a specific embodiment, the transparent card is further provided with rectangular scale marks 9 perpendicular to the horizontal swimming wire 4, and each line of the rectangular scale marks 9 is led out from the intersection point of the corresponding semicircular scale mark and the horizontal swimming wire 4.
The utility model discloses can fix and paste on the crack.
The transparent plastic sheet 7 of stiff end 1 and measuring terminal 2 is a whole, during the use, adjust reading and paste the position and the corner of card, make the centre of a circle of semicircle scale coincide with the limit of quilt survey crack mutually, and vertical trip silk thread 3 parallels with the crack of quilt survey, horizontal trip silk thread 4 is mutually perpendicular with the crack of quilt survey, tear the protective film on 5 surfaces of adhesive material layer, paste left stiff end 1 on the quilt survey component, measuring terminal 2 on right side is close to the quilt survey component surface but unset, can eliminate the crack like this and develop and paste the card and produce additional stress to the reading. Monitoring the crack for the first time, wherein project overview and current crack width and time are required to be recorded; and then, sequentially recording the width and time of the crack at certain time intervals. The crack width value is the scale value of a semicircle tangent to the crack on the measuring end 2, the division value of the semicircle scale of the measuring end 2 is 1.0mm, and one bit needs to be estimated and read during reading. The utility model discloses both can be used to the measuring slide caliper rule of crack width single, also can be used to many times record crack seam width, monitor the fissured development of building structure component.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a reading pastes card for crack monitoring which characterized in that: including transparent card, be equipped with the vertical trip silk line that falls into its measurement end and stiff end on the transparent card, be equipped with the device of pasting of fixing it in crack one side on the transparent card of stiff end, be equipped with on the transparent card of measurement end with vertical trip silk line vertically horizontal trip silk line, still be equipped with the concentric semicircle scale mark that uses vertical trip silk line and horizontal trip silk line intersecting line as the centre of a circle on the transparent card.
2. The reading card for crack monitoring of claim 1, wherein: the sticking device is an adhesive layer fixed on one side of the transparent card.
3. The reading card for crack monitoring of claim 2, wherein: the adhesive layer is made of acrylic acid adhesive.
4. The reading card for crack monitoring of claim 1, wherein: the transparent card is a transparent plastic card.
5. The reading card for crack monitoring of claim 1, wherein: and rectangular scale marks perpendicular to the horizontal swimming thread are also arranged on the transparent card.
6. A reading card for crack monitoring according to any one of claims 1 to 5, wherein: the concentric circle scale on the transparent card is millimeter level, the minimum scale is 0.5mm, and the maximum measuring range is 20 mm.
7. A reading card for crack monitoring according to any one of claims 1 to 5, wherein: the reading sticking card is used for measuring and monitoring cracks of a concrete structure, a masonry structure and a steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988341.9U CN210981113U (en) | 2019-11-18 | 2019-11-18 | A reading pastes card for crack monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988341.9U CN210981113U (en) | 2019-11-18 | 2019-11-18 | A reading pastes card for crack monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210981113U true CN210981113U (en) | 2020-07-10 |
Family
ID=71424326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921988341.9U Active CN210981113U (en) | 2019-11-18 | 2019-11-18 | A reading pastes card for crack monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210981113U (en) |
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2019
- 2019-11-18 CN CN201921988341.9U patent/CN210981113U/en active Active
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