CN114812327A - Measure measuring tape of concrete member surface irregular damage face deepest - Google Patents
Measure measuring tape of concrete member surface irregular damage face deepest Download PDFInfo
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- CN114812327A CN114812327A CN202210277606.4A CN202210277606A CN114812327A CN 114812327 A CN114812327 A CN 114812327A CN 202210277606 A CN202210277606 A CN 202210277606A CN 114812327 A CN114812327 A CN 114812327A
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- measuring
- needle
- scale
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- groove
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model provides a measure ruler that irregular damage face of concrete member surface is deepest, includes scale plate, measuring pin, buckle dish, its characterized in that: the scale plate is the rectangle plate, the measurement needle is the circular measurement needle of steel, and the one end of measuring the needle is equipped with the handle, and the other end is equipped with the needle point, the knot dish is the visual knot dish of disc type, wherein: the part from the needle point of the measuring needle to the zero mark is accommodated in the groove of the scale plate, the other part extends out of the groove of the scale plate, and the zero mark of the measuring needle is aligned with the zero scale mark of the scale in the initial state; the metal frame is connected with the groove opening of the scale plate, so that the measuring needle penetrates out of the central through hole of the circular glass plate. The measuring tape has the advantages that the needle-shaped superfine end of the measuring needle is inserted into the deepest part of the irregular damage surface for accurate measurement, the deepest point position is initially judged by naked eyes in the process of measuring by looking at the buckle disc, time and labor are saved, the measuring needle is replaceable, and the length and the accuracy of the dial are customized according to actual needs.
Description
Technical Field
The invention relates to a measuring scale, in particular to a measuring scale for measuring the deepest depth of an irregular damaged surface on the surface of a concrete member.
Background
Traditional measuring tool, such as meter ruler, slide caliper etc. can't carry out accurate measurement to the deepest of irregular fracture face. Moreover, some objects needing to measure the depth of the irregular damaged surface can only be observed and estimated by naked eyes, such as the measurement of the deepest dimension of the irregular damaged surface of a building component, the measurement of the carbonization depth of concrete and the like.
In the construction process of a building main body structure, hoisting, form removal, vibration and concrete carbonization depth measurement of various concrete members inevitably damage the surface of concrete to a certain extent, the surface is irregular, and the depth is difficult to measure by using a traditional measuring tool.
The known measuring tools and measuring methods therefore suffer from the inconveniences and problems described above.
Disclosure of Invention
The invention aims to provide a measuring scale for measuring the deepest depth of an irregular damage surface on the surface of a concrete member more accurately.
In order to achieve the purpose, the technical solution of the invention is as follows:
the utility model provides a measure the measuring tape of the irregular damage face deepest in concrete member surface, includes scale plate, measuring pin, knot dish, its characterized in that:
the scale plate is a rectangular plate, a through long groove is formed in the middle of the length of the surface of the rectangular plate, and scales are correspondingly arranged on two sides of the groove;
the measuring needle is a steel round measuring needle, one end of the measuring needle is provided with a handle, the other end of the measuring needle is provided with a needle point, and the middle part of the measuring needle is provided with a return-to-zero mark; the handle movably extends out of one end of the groove, and the needle tip reaches the notch at the other end of the groove of the scale plate;
the fastening disc is a disc type visual fastening disc which comprises a metal frame and a circular glass plate, the metal frame wraps the circular glass plate, and a through hole is formed in the center of the circular glass plate;
wherein: the part from the needle point of the measuring needle to the zero mark is accommodated in the groove of the scale plate, the other part extends out of the groove of the scale plate, and the zero mark of the measuring needle is aligned with the zero scale mark of the scale in the initial state; the metal frame is connected with the groove opening of the scale plate, so that the measuring needle penetrates out of the central through hole of the circular glass plate.
The measuring scale for measuring the deepest irregular damage surface of the concrete member surface can be further realized by adopting the following technical measures.
The measuring scale for measuring the deepest depth of the irregular damage surface on the surface of the concrete member is characterized in that the scales are provided with zero scale marks and 5 scale marks, wherein 5 scale values are respectively provided with 10-minute scale values.
The diameter of the round measuring needle is less than or equal to 2 mm.
The measuring tape for measuring the deepest irregular failure surface of the concrete member is characterized in that the needle point is a conical head.
The measuring tape for measuring the deepest depth of the irregular failure surface on the surface of the concrete member is characterized in that the measuring needle is perpendicular to the surface of the round glass plate.
The measuring tape for measuring the deepest irregular failure surface of the concrete member is characterized in that the metal frame and the scale plate are fixedly connected in a welding mode.
After the technical scheme is adopted, the measuring scale for measuring the deepest depth of the irregular damaged surface on the surface of the concrete member has the following advantages:
1. the needle-shaped extremely fine advantage of the end part of the fine measuring needle is utilized, and the deepest part of the irregular damage surface is inserted for accurate measurement;
2. a visual buckle disc is additionally arranged, the position of the deepest point is initially judged by naked eyes in the measuring process, and time and labor are saved;
3. the measuring needle can be replaced; the dial scales are designed according to actual needs; the precision is customized according to actual needs.
Drawings
FIG. 1 is a schematic view of a measuring tape according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the portion P in FIG. 1;
FIG. 3 is an enlarged view of the portion Q of FIG. 1;
FIG. 4 is a schematic view of a buckle plate structure according to an embodiment of the present invention;
fig. 5 is a schematic view of a measuring tape in use according to an embodiment of the present invention.
In the figure: the measuring tool comprises a handle 1, a measuring needle 2, a groove 3, a scale plate 4, a round glass flat plate 5, a metal wrapping edge 6, a zero return mark 7, a needle point 8, a metal frame 9, a concrete member 11, a reading mark 12, a damage surface 13 and a damage surface deepest point 14.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The measuring scale for measuring the deepest depth of the irregular damage surface on the surface of the concrete member comprises a scale plate, a measuring needle and a buckle plate.
Referring to fig. 1-3, fig. 1 is a schematic view of a measuring tape according to an embodiment of the present invention, fig. 2 is an enlarged view of a portion P in fig. 1, and fig. 3 is an enlarged view of a portion Q in fig. 1. As shown in the figure, the scale plate 4 is a rectangular plate, a through long groove 3 is formed in the middle of the length of the surface of the rectangular plate, and scales are correspondingly arranged on two sides of the groove;
the measuring needle is a steel round measuring needle, one end of the measuring needle 2 is provided with a handle 1, the other end of the measuring needle is provided with a needle point 8, and the middle part of the measuring needle is provided with a return-to-zero mark 7; the handle movably extends out of one end of the groove, and the needle tip reaches the notch at the other end of the groove of the scale plate;
the buckling disc is a disc type visual buckling disc which comprises a metal frame and a circular glass plate, the metal frame wraps the circular glass plate 5, and a through hole is formed in the center of the circular glass plate;
wherein: the part from the needle point of the measuring needle to the zero mark is accommodated in the groove of the scale plate, the other part extends out of the groove of the scale plate, and the zero mark of the measuring needle is aligned with the zero scale mark of the scale in the initial state; the metal frame 9 is connected with the groove opening of the scale plate, so that the measuring needle penetrates out of the central through hole of the circular glass plate.
Example 2
The invention relates to a method for manufacturing a measuring tape for measuring the deepest depth of an irregular damaged surface of a concrete member surface, which comprises the following steps:
(1) taking a customized scale plate: the middle of the glass is provided with a groove, the two sides of the glass are provided with scales, and the length and the fineness of the scales are customized according to actual needs.
(2) Steel measuring needle: coarseness: phi is 2mm, one end is provided with a handle, the other end is needle-shaped and is provided with a return-to-zero mark; when in the zeroing state, the zeroing mark corresponds to the dial scale at zero degree, and the tip of the measuring needle is flush with the outermost side of the visible transparent glass buckle disc.
(3) The transparent and visible glass buckle plate with the metal wrapping 6 comprises 1) the protective transparent glass buckle plate, 2) the dial is connected with the dial through three steel measuring scale supports, and fig. 4 is a structural schematic diagram of the buckle plate in the embodiment of the invention. The scale plate and the visible transparent glass buckle plate are connected with the metal covering edge outside the buckle plate through the steel measuring tape support, and meanwhile, the dial and the measuring needle are perpendicular to the visible buckle plate.
Example 3
Fig. 5 is a schematic view of a measuring tape in use according to an embodiment of the present invention. The invention relates to a use method of a measuring scale for measuring the deepest depth of an irregular damaged surface of a concrete member surface, which comprises the following steps:
in the measuring process, a visual buckle disc is placed on the surface of the irregular damage surface of the flat surface of the concrete member 11, the irregular damage surface 13 is observed through the visual buckle disc, the deepest point 14 is found, and a measuring needle is pushed into the deepest point for measurement; at this time, the reading needle zero-resetting mark on the dial is corresponding to the reading mark 12 on the dial, namely the deepest dimension of the irregular damage surface.
The measuring scale for measuring the deepest irregular damage surface on the surface of the concrete member has the advantages that the measuring scale for measuring the deepest irregular damage surface on the surface of the concrete column and the beam has smooth measurement progress, the quality of engineering entities is effectively controlled, errors caused by prejudgment and measurement are reduced in the measurement process, and the measurement precision is more accurate. The measuring scale has simple structure and simple manufacture, is economical and practical, and reduces unnecessary economic burden brought by purchasing advanced electronic measuring instruments.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (6)
1. The utility model provides a measure the measuring tape of the irregular damage face deepest in concrete member surface, includes scale plate, measuring pin, knot dish, its characterized in that:
the scale plate is a rectangular plate, a through long groove is formed in the middle of the length of the surface of the rectangular plate, and scales are correspondingly arranged on two sides of the groove;
the measuring needle is a steel round measuring needle, one end of the measuring needle is provided with a handle, the other end of the measuring needle is provided with a needle point, and the middle part of the measuring needle is provided with a return-to-zero mark; the handle movably extends out of one end of the groove, and the needle tip reaches the notch at the other end of the groove of the scale plate;
the fastening disc is a disc type visual fastening disc which comprises a metal frame and a circular glass plate, the metal frame wraps the circular glass plate, and a through hole is formed in the center of the circular glass plate;
wherein: the part from the needle point of the measuring needle to the zero mark is accommodated in the groove of the scale plate, the other part extends out of the groove of the scale plate, and the zero mark of the measuring needle is aligned with the zero scale mark of the scale in the initial state; the metal frame is connected with the groove opening of the scale plate, so that the measuring needle penetrates out of the central through hole of the circular glass plate.
2. The measuring tape for measuring the deepest depth of an irregular damaged surface on the surface of a concrete member according to claim 1, wherein the scale is provided with a zero graduation mark-5 graduation marks, and wherein each of the 5 graduation marks is provided with a 10-minute graduation mark.
3. The measuring tape for measuring the deepest depth of an irregular failure surface on the surface of a concrete member as claimed in claim 1, wherein the diameter of the circular measuring pin is less than or equal to 2 mm.
4. The measuring tape for measuring the deepest depth of an irregular failure surface on the surface of a concrete member as claimed in claim 1, wherein the needle point is a conical head.
5. The measuring tape for measuring the deepest depth of an irregular failure surface on the surface of a concrete member as set forth in claim 1, wherein the measuring needle is perpendicular to the surface of the circular glass plate.
6. The measuring tape for measuring the deepest depth of an irregular failure surface on the surface of a concrete member as claimed in claim 1, wherein the metal frame and the scale plate are fixedly connected by welding.
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CN202210277606.4A CN114812327B (en) | 2022-03-21 | 2022-03-21 | Measuring scale for measuring deepest of irregular damaged surface of concrete member surface |
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CN202210277606.4A CN114812327B (en) | 2022-03-21 | 2022-03-21 | Measuring scale for measuring deepest of irregular damaged surface of concrete member surface |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102587448B1 (en) * | 2022-12-30 | 2023-10-11 | 주식회사 다담엔지니어링 | Apparatus for measuring crack depth for structural safety diagnosis |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH418655A (en) * | 1965-03-17 | 1966-08-15 | Hofer Arnold | Measuring instrument |
DE2237329A1 (en) * | 1972-02-28 | 1973-09-06 | Optograms | DIGITAL ELECTRO-OPTICAL MICROMETER FINE MEASURING INSTRUMENT |
US3821854A (en) * | 1973-01-26 | 1974-07-02 | E Koch | Depth micrometer |
DE2459461A1 (en) * | 1974-11-28 | 1976-08-12 | Dunlop Ltd | METHOD AND DEVICE FOR MEASURING THE PENETRATION RESISTANCE |
US5046845A (en) * | 1988-07-12 | 1991-09-10 | Richard Wolf Gmbh | Technoscope for checking damage to surfaces |
CN201637368U (en) * | 2009-12-02 | 2010-11-17 | 肖克飚 | Measuring scale for erosion gully |
CN202329590U (en) * | 2011-12-01 | 2012-07-11 | 山东法因数控机械股份有限公司 | Device for detecting point positions of plate surface |
CN103115552A (en) * | 2013-01-30 | 2013-05-22 | 青岛理工大学 | Wide-range concrete carbonization depth measuring device |
CN103575191A (en) * | 2013-11-19 | 2014-02-12 | 中国电力科学研究院 | Testing device for foundation model test failure surface |
CN203687843U (en) * | 2014-01-07 | 2014-07-02 | 辛会军 | Simple measuring instrument for measuring depth of pit of metal plate |
CN105181447A (en) * | 2015-09-02 | 2015-12-23 | 青岛理工大学 | Rock-like sample destruction surface fixing clamp device |
CN205156823U (en) * | 2015-11-12 | 2016-04-13 | 楚雅雯 | Bore depth measuring tool |
CN205784920U (en) * | 2016-06-01 | 2016-12-07 | 五冶集团上海有限公司 | A kind of Multi-function T-shape Sopwith staff |
CN107137088A (en) * | 2017-06-16 | 2017-09-08 | 武汉市中心医院 | Diabetes wound measuring scale |
CN208155232U (en) * | 2018-03-27 | 2018-11-27 | 河南金诺混凝土有限公司 | Depth measurement tools used in a kind of concrete construction |
CN109000528A (en) * | 2018-06-07 | 2018-12-14 | 五冶集团上海有限公司 | It is a kind of for the measurement of electric wire tube spacing, spacing, adjustment Multifunctional scale |
CN208872217U (en) * | 2018-11-19 | 2019-05-17 | 中建八局浙江建设有限公司 | Concreting tool for measuring thickness |
CN209027428U (en) * | 2018-11-29 | 2019-06-25 | 江苏城铭工程项目管理有限公司 | A kind of carbonation depth measuring instrument |
CN209416248U (en) * | 2019-03-29 | 2019-09-20 | 临沂市政集团有限公司 | A kind of depth measurement tools |
CN209910562U (en) * | 2018-12-28 | 2020-01-07 | 吉林省星图测绘科技有限公司 | Depth measuring device |
CN212963144U (en) * | 2020-07-22 | 2021-04-13 | 广东省建设工程质量安全检测总站有限公司 | Measuring device for measuring concave-convex depth of surface of concrete prefabricated part |
CN213902200U (en) * | 2021-01-29 | 2021-08-06 | 广东泰升工程质量检测有限公司 | Carbonization depth measuring instrument |
CN214308545U (en) * | 2021-03-17 | 2021-09-28 | 广西真龙实业有限责任公司 | Portable depth measuring device |
CN215055206U (en) * | 2021-06-07 | 2021-12-07 | 五冶集团上海有限公司 | Tray and jacking adjusting device for tray buckle frame |
CN216558690U (en) * | 2021-12-09 | 2022-05-17 | 山东舜旺新型建材有限公司 | Auxiliary device for measuring depth of concrete crack |
-
2022
- 2022-03-21 CN CN202210277606.4A patent/CN114812327B/en active Active
Patent Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH418655A (en) * | 1965-03-17 | 1966-08-15 | Hofer Arnold | Measuring instrument |
DE2237329A1 (en) * | 1972-02-28 | 1973-09-06 | Optograms | DIGITAL ELECTRO-OPTICAL MICROMETER FINE MEASURING INSTRUMENT |
US3821854A (en) * | 1973-01-26 | 1974-07-02 | E Koch | Depth micrometer |
DE2459461A1 (en) * | 1974-11-28 | 1976-08-12 | Dunlop Ltd | METHOD AND DEVICE FOR MEASURING THE PENETRATION RESISTANCE |
US5046845A (en) * | 1988-07-12 | 1991-09-10 | Richard Wolf Gmbh | Technoscope for checking damage to surfaces |
CN201637368U (en) * | 2009-12-02 | 2010-11-17 | 肖克飚 | Measuring scale for erosion gully |
CN202329590U (en) * | 2011-12-01 | 2012-07-11 | 山东法因数控机械股份有限公司 | Device for detecting point positions of plate surface |
CN103115552A (en) * | 2013-01-30 | 2013-05-22 | 青岛理工大学 | Wide-range concrete carbonization depth measuring device |
CN103575191A (en) * | 2013-11-19 | 2014-02-12 | 中国电力科学研究院 | Testing device for foundation model test failure surface |
CN203687843U (en) * | 2014-01-07 | 2014-07-02 | 辛会军 | Simple measuring instrument for measuring depth of pit of metal plate |
CN105181447A (en) * | 2015-09-02 | 2015-12-23 | 青岛理工大学 | Rock-like sample destruction surface fixing clamp device |
CN205156823U (en) * | 2015-11-12 | 2016-04-13 | 楚雅雯 | Bore depth measuring tool |
CN205784920U (en) * | 2016-06-01 | 2016-12-07 | 五冶集团上海有限公司 | A kind of Multi-function T-shape Sopwith staff |
CN107137088A (en) * | 2017-06-16 | 2017-09-08 | 武汉市中心医院 | Diabetes wound measuring scale |
CN208155232U (en) * | 2018-03-27 | 2018-11-27 | 河南金诺混凝土有限公司 | Depth measurement tools used in a kind of concrete construction |
CN109000528A (en) * | 2018-06-07 | 2018-12-14 | 五冶集团上海有限公司 | It is a kind of for the measurement of electric wire tube spacing, spacing, adjustment Multifunctional scale |
CN208872217U (en) * | 2018-11-19 | 2019-05-17 | 中建八局浙江建设有限公司 | Concreting tool for measuring thickness |
CN209027428U (en) * | 2018-11-29 | 2019-06-25 | 江苏城铭工程项目管理有限公司 | A kind of carbonation depth measuring instrument |
CN209910562U (en) * | 2018-12-28 | 2020-01-07 | 吉林省星图测绘科技有限公司 | Depth measuring device |
CN209416248U (en) * | 2019-03-29 | 2019-09-20 | 临沂市政集团有限公司 | A kind of depth measurement tools |
CN212963144U (en) * | 2020-07-22 | 2021-04-13 | 广东省建设工程质量安全检测总站有限公司 | Measuring device for measuring concave-convex depth of surface of concrete prefabricated part |
CN213902200U (en) * | 2021-01-29 | 2021-08-06 | 广东泰升工程质量检测有限公司 | Carbonization depth measuring instrument |
CN214308545U (en) * | 2021-03-17 | 2021-09-28 | 广西真龙实业有限责任公司 | Portable depth measuring device |
CN215055206U (en) * | 2021-06-07 | 2021-12-07 | 五冶集团上海有限公司 | Tray and jacking adjusting device for tray buckle frame |
CN216558690U (en) * | 2021-12-09 | 2022-05-17 | 山东舜旺新型建材有限公司 | Auxiliary device for measuring depth of concrete crack |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102587448B1 (en) * | 2022-12-30 | 2023-10-11 | 주식회사 다담엔지니어링 | Apparatus for measuring crack depth for structural safety diagnosis |
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