CN2771817Y - Camera-shoft width-measuring instrument for surface crack of building - Google Patents
Camera-shoft width-measuring instrument for surface crack of building Download PDFInfo
- Publication number
- CN2771817Y CN2771817Y CN 200420016659 CN200420016659U CN2771817Y CN 2771817 Y CN2771817 Y CN 2771817Y CN 200420016659 CN200420016659 CN 200420016659 CN 200420016659 U CN200420016659 U CN 200420016659U CN 2771817 Y CN2771817 Y CN 2771817Y
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- camera
- surface crack
- width
- measuring instrument
- utility
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a camera-shooting width-measuring instrument for surface cracks of buildings, which belongs to the technical field of quality detection and appraisal of building engineering. The utility model is used for solving the problems of inconvenient measurement of the surface cracks of the buildings, low precision and bad efficiency. The camera-shooting width-measuring instrument for surface cracks of buildings is composed of a standard scale plate (6) and a camera head (1) of a lengthening lens (4) which are connected with a (3) of a magnifying scale ruler (5) by a signal transmitting cable (2), and is used for detecting and appraising the quality of the building engineering.
Description
Technical field
The utility model relates to a kind of building surface crack shooting width gage, and it belongs to construction engineering quality and detects the evaluation field.
Background technology
Buildings especially concrete component perhaps is subjected to temperature variation to produce the crack sometimes under the effect of load power, and fracture width is generally 0.1～2.0 millimeter, and the size of width directly affects the functions of use of fabric structure.Therefore when carrying out structural quality or safety assessment, require accurately to measure the width in crack.Measuring method commonly used at present has two kinds: a kind of is to use clearance gauge, promptly uses the ruler of a series of different-thickness, fills in the crack, can fill in the crack just as the ruler of 0.50 millimeter thickness, and then this fracture width is 0.50 millimeter; Another kind method is with magnifier observation, promptly uses the magnifier of certain enlargement factor, is carved with scale on the magnifier.As enlargement factor is 10 times, observes 10.4 millimeters when with this magnifier observation, and then the crack developed width is 1.04 millimeters.In above-mentioned two kinds of methods, first method because edge of crack is a zigzag, exists the low deficiency of measuring accuracy; Second method need could be surveyed near magnifier with eyes and read, and exists inconvenience, the ineffective problem used.
Summary of the invention
The utility model overcomes deficiency of the prior art and problem, and a kind of easy to use, high efficiency and the accurate building surface of measurement crack shooting width gage is provided.
In order to solve the problem of above-mentioned technology, the utility model is achieved through the following technical solutions: building surface crack shooting width gage is the camera (1) by master scale plate (6) and lengthening border head (4), connects to form by signal-transmitting cable (2) and the display (3) that amplifies rule (5).
The utility model also can be achieved through the following technical solutions: the amplification rule (5) of aforementioned display device (3) is 20～50 times.
The utility model also can be achieved through the following technical solutions: the above-mentioned full length shot (4) that adds is 5～15 millimeters
The utility model also can be achieved through the following technical solutions: the precision of above-mentioned master scale plate (6) is for more than ± 0.005 millimeter, and the high more measured data of precision are accurate more.
Compared with prior art, the beneficial effects of the utility model are: easy to use, high efficiency and measurement are accurate.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the synoptic diagram of the utility model master scale plate.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail: the ordinary video minisize pick-up head of buying on the market 1 is added 4 to 8 millimeters of full length shots, make it to have enlarging function, and it is connected with the display 3 that amplifies rule 5 by signal-transmitting cable 2.Rule 5 length are 80 millimeters, divide 100 scales, and 0.8 millimeter of scale interval, the scale on the display 3 are that physical size is amplified 40 times result, promptly on the display 3 0.8 millimeter represent 0.02 millimeter of developed width.Precision by ± 0.005 millimeter on master scale plate 6 is made the scale that is respectively 0.02,0.20,1.00 millimeter.Data measured when the precision on the master scale plate 6 is high more are accurate more.
Before using the utility model, tester at first: the camera 1 that adds full length shot 4 is placed on the master scale plate 6, as be placed on 1.00 millimeters, then should show 40.00 millimeters width on the display 3, if be greater than or less than 40.00 millimeters, will adjust the enlargement factor that adds full length shot 4, on display 3, show 40.00 millimeters just, when error during less than 0.02 millimeter, instrument can normally use.Hour measured more data of error on display 3 are accurate more.In use, open the power switch of camera 1, the camera 1 in lengthening border 4 is placed on the building surface crack, on display 3, can see the crack pattern picture that is exaggerated, rotate the camera 1 that adds full length shot 4 a little, the crack pattern picture is weighed directly with amplifying rule 5, how much read the width value in crack according to crack pattern as shared scale mark.Thereby realize that the utility model is easy to use, high efficiency and the accurate beneficial effect of measurement.
Claims (5)
1, a kind of building surface crack shooting width gage is characterized in that the camera (1) by master scale plate (6) and lengthening border head (4), connects to form by signal-transmitting cable (2) and the display (3) that amplifies rule (5).
2, building surface crack shooting width gage as claimed in claim 1 is characterized in that the amplification rule (5) of display (3) is 20～50 times.
3, building surface crack shooting width gage as claimed in claim 1 or 2, it is characterized in that adding full length shot (4) is 5～15 millimeters.
4, building surface crack shooting width gage as claimed in claim 1 or 2, the precision that it is characterized in that master scale plate (6) is for more than ± 0.005 millimeter.
5, building surface crack shooting width gage as claimed in claim 3, the precision that it is characterized in that master scale plate (6) is for more than ± 0.005 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016659 CN2771817Y (en) | 2004-08-17 | 2004-08-17 | Camera-shoft width-measuring instrument for surface crack of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016659 CN2771817Y (en) | 2004-08-17 | 2004-08-17 | Camera-shoft width-measuring instrument for surface crack of building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771817Y true CN2771817Y (en) | 2006-04-12 |
Family
ID=36705608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420016659 Expired - Fee Related CN2771817Y (en) | 2004-08-17 | 2004-08-17 | Camera-shoft width-measuring instrument for surface crack of building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771817Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928336A (en) * | 2012-10-24 | 2013-02-13 | 上海交通大学 | Method for measuring slippage of steel plate concrete structure |
| CN104374362A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Electronic joint meter |
| CN105157595A (en) * | 2015-09-25 | 2015-12-16 | 浙江中技建设工程检测有限公司 | Method and device for detecting deformation and defects of existing building |
| CN105698686A (en) * | 2016-03-15 | 2016-06-22 | 交通运输部公路科学研究所 | Device and method of detecting crack width measuring instrument indication value errors |
| CN108195290A (en) * | 2017-12-29 | 2018-06-22 | 上海建工集团股份有限公司 | A kind of crack measuring apparatus and measuring method based on image procossing |
| CN110220465A (en) * | 2019-07-17 | 2019-09-10 | 贵州电网有限责任公司 | A kind of ice covering thickness measuring device and its measurement method |
| CN111473776A (en) * | 2020-05-11 | 2020-07-31 | 中晋环境科技有限公司 | Landslide crack monitoring method based on single-image close-range photogrammetry |
-
2004
- 2004-08-17 CN CN 200420016659 patent/CN2771817Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928336A (en) * | 2012-10-24 | 2013-02-13 | 上海交通大学 | Method for measuring slippage of steel plate concrete structure |
| CN104374362A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Electronic joint meter |
| CN105157595A (en) * | 2015-09-25 | 2015-12-16 | 浙江中技建设工程检测有限公司 | Method and device for detecting deformation and defects of existing building |
| CN105698686A (en) * | 2016-03-15 | 2016-06-22 | 交通运输部公路科学研究所 | Device and method of detecting crack width measuring instrument indication value errors |
| CN108195290A (en) * | 2017-12-29 | 2018-06-22 | 上海建工集团股份有限公司 | A kind of crack measuring apparatus and measuring method based on image procossing |
| CN110220465A (en) * | 2019-07-17 | 2019-09-10 | 贵州电网有限责任公司 | A kind of ice covering thickness measuring device and its measurement method |
| CN111473776A (en) * | 2020-05-11 | 2020-07-31 | 中晋环境科技有限公司 | Landslide crack monitoring method based on single-image close-range photogrammetry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060412 Termination date: 20120817 |