CN203572393U - Crack development tester for concrete bridge - Google Patents
Crack development tester for concrete bridge Download PDFInfo
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- CN203572393U CN203572393U CN201320741264.3U CN201320741264U CN203572393U CN 203572393 U CN203572393 U CN 203572393U CN 201320741264 U CN201320741264 U CN 201320741264U CN 203572393 U CN203572393 U CN 203572393U
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Abstract
The utility model discloses a crack development tester for a concrete bridge. The crack development tester for the concrete bridge comprises a scale, a vernier, a first clamping rod and a second clamping rod, an end part of a measuring section of the first clamping rod and an end part of a measuring section of the second clamping rod are respectively hinged to a probe, an end part of an amplification section of the first clamping rod is hinged to a zero graduation line of the scale, an end part of an amplification section of the second clamping rod is provided with a horizontal pulley, the horizontal pulley slides along the scale, the horizontal pulley is hinged to the vernier, a hinge point of the horizontal pulley and the vernier is positioned at a zero graduation line of the vernier scale, the vernier slides along the scale pushed by the horizontal pulley, the zero graduation line of the vernier is provided with a pointer vertical to the vernier, and the pointer is attached to the surface of the scale and moves driven by the vernier. The scale cooperates with the vernier by the adoption of dimension amplification, the scales are converted, the difference of the first and the second recording values is the width of further cracking of a crack, and the rack development tester for the concrete bridge is advantaged by simple structure and convenient carrying.
Description
Technical field
The utility model belongs to concrete-bridge field, is specifically related to a kind of glue into concrete beam cracks development tester.
Background technology
In bridge or Test on Bridge Loading for long-term observation, the cracking of distress in concrete and development are parts very important in detecting, what for existing Cracks on Concrete Bridge detector, mainly use is crack microscope, it needs focusing when measuring, test speed is slow, and measuring accuracy is low, domestic equipment WYSK--40 type fracture width tester: measurement range 0～4mm, precision 0.05mm; Imported product ELE35-2520 2505 type fracture width testers: measurement range 0～4mm, precision 0.02mm, for another cracks detector, the highest estimation precision also just reaches 0.01mm, and the direct measuring accuracy of this instrument reaches 0.01mm; For existing high-precision fracture detecting instrument, expensive, and due to artificial subjectivity, may there is larger error, and also complex structure is also fragile.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is, a kind of glue into concrete beam cracks development tester is provided, and further determines the development in crack for measuring the width of two point of fixity that are fixed on distress in concrete both sides.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of glue into concrete beam cracks development tester, comprise scale and vernier scale, described glue into concrete beam cracks development tester also comprises the first clamping bar and the second clamping bar, the first clamping bar and the second clamping bar are hinged by rotation axis symmetry, the first clamping bar is divided into the first clamping bar measuring section to rotation axis and the first clamping bar amplifies section, the second clamping bar is divided into the second clamping bar measuring section to rotation axis and the second clamping bar amplifies section, the length of the first clamping bar measuring section and the second clamping bar measuring section equal in length, length and the second clamping bar that the first clamping bar amplifies section amplify the equal in length of section;
The end of the end of the first clamping bar measuring section and the second clamping bar measuring section is hinged with respectively a probe, the end of the first clamping bar amplification section is hinged on the zero graduation line place of scale, the second clamping bar amplifies section end and is provided with horizontal trolley, horizontal trolley slides along scale, on horizontal trolley, be hinged with vernier scale, the pin joint of horizontal trolley and vernier scale is at the zero graduation line place of vernier scale, vernier scale slides along scale under the promotion of horizontal trolley, the zero graduation line place of vernier scale is provided with the pointer vertical with vernier scale, pointer is fitted in scale surface and moves under the drive of vernier scale.
The utility model also has following technical characterictic:
The Length Ratio that the length of the first described clamping bar measuring section and the first clamping bar amplify section is 1:10; The Length Ratio that the length of the second described clamping bar measuring section and the second clamping bar amplify section is 1:10.
Scale on described vernier scale is divided into 10 deciles by the physical length of 9mm.
The utility model compared with prior art, has following technique effect:
(A) the utility model can be used for accurately measuring the development of glue into concrete beam cracks, and this scale is to utilize size to amplify and vernier scale is used in combination, and scale converts, and the difference that records numerical value that front and back are twice is exactly directly the width further ftractureing in crack.
(B) when checking crack progressing, can directly probe be fixed on to the position that prior mark is good, directly reading from scale, check whether this crack, place has development, can directly in situ measure, because measuring position is accurate next time, therefore error is little, and use convenient succinct.
(C) in conjunction with the advantage of vernier scale, measuring accuracy is high, reaches 0.01mm, meets the requirement that general cracking instrument precision should be less than 0.02mm.
(D) low price, easy to carry, meet general detection demand.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is the local structure for amplifying schematic diagram at A place in Fig. 1.
In figure, the implication of each label is: 1-scale, 2-vernier scale, 3-the first clamping bar, 4-the second clamping bar, 5-rotation axis, 6-the first clamping bar measuring section, 7-the first clamping bar amplifies section, 8-the second clamping bar measuring section, 9-the second clamping bar amplifies section, 10-probe, 11-horizontal trolley, 12-pointer.
Below in conjunction with drawings and Examples, particular content of the present utility model is described in more detail.
Embodiment
Below provide specific embodiment of the utility model, it should be noted that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as depicted in figs. 1 and 2, the present embodiment provides a kind of glue into concrete beam cracks development tester, comprise scale 1 and vernier scale 2, described glue into concrete beam cracks development tester also comprises the first clamping bar 3 and the second clamping bar 4, the first clamping bar 3 and the second clamping bar 4 are symmetrical hinged by rotation axis 5, the first clamping bar 3 is divided into the first clamping bar measuring section 6 to rotation axis 5 and the first clamping bar amplifies section 7, the second clamping bar 4 is divided into the second clamping bar measuring section 8 to rotation axis 5 and the second clamping bar amplifies section 9, the length of the first clamping bar measuring section 6 and the second clamping bar measuring section 8 equal in length, length and the second clamping bar that the first clamping bar amplifies section 7 amplify the equal in length of section 9,
The end of the end of the first clamping bar measuring section 6 and the second clamping bar measuring section 8 is hinged with respectively a probe 10, the end of the first clamping bar amplification section 7 is hinged on the zero graduation line place of scale 1, the second clamping bar amplifies section 9 ends and is provided with horizontal trolley 11, horizontal trolley 11 slides along scale 1, on horizontal trolley 11, be hinged with vernier scale 2, the pin joint of horizontal trolley 11 and vernier scale 2 is at the zero graduation line place of vernier scale 2, vernier scale 2 slides along scale 1 under the promotion of horizontal trolley 11, the zero graduation line place of vernier scale 2 is provided with the pointer vertical with vernier scale 2 12, pointer 12 is fitted in scale 1 surface and moves under the drive of vernier scale 2.
The Length Ratio that the length of the first clamping bar measuring section 6 and the first clamping bar amplify section 8 is 1:10; The Length Ratio that the length of the second clamping bar measuring section 7 and the second clamping bar amplify section 9 is 1:10.The distance that such ratio makes to pop one's head between 10 is amplified ten times on scale 1, be that distance corresponding actual range on scale 1 between the probe 10 of 1mm is 10mm, the scale of the 10mm actual range mark on scale 1 is 1mm, and the numerical value that so scale 1 high scale shows is the actual distance between probe 10.
Scale on vernier scale 2 is divided into 10 deciles by the physical length of 9mm, coordinates with scale 1, and the degree of accuracy of scale 1 high scale is brought up to 0.01mm, and between probe, the degree of accuracy of actual range reaches 0.01mm.
The course of work of the present utility model is as described below:
During use, two probes 10 of the present utility model are placed on to 2 points of demarcating in distress in concrete both sides in advance, in probe 10 processes of opening, the first clamping bar 3 and the second clamping bar 4 also open thereupon below, the horizontal trolley 11 that the second clamping bar amplifies section 9 ends moves thereupon, horizontal trolley 11 drives vernier scale 2 to move, pointer 12 will move about under the drive of vernier scale 2 on scale 1, when probe 10 is fixing, pointer 12 has just pointed to a certain scale on scale 1, in conjunction with vernier scale 2 readings, can accurately read now shown numerical value, using result as an observational record, with observational record contrast last time, the difference of two times result is exactly the development value in crack.
Claims (3)
1. a glue into concrete beam cracks development tester, comprise scale (1) and vernier scale (2), it is characterized in that, described glue into concrete beam cracks development tester also comprises the first clamping bar (3) and the second clamping bar (4), the first clamping bar (3) and the second clamping bar (4) are symmetrical hinged by rotation axis (5), the first clamping bar (3) is divided into the first clamping bar measuring section (6) to rotation axis (5) and the first clamping bar amplifies section (7), the second clamping bar (4) is divided into the second clamping bar measuring section (8) to rotation axis (5) and the second clamping bar amplifies section (9), the length of the first clamping bar measuring section (6) and the second clamping bar measuring section (8) equal in length, length and the second clamping bar that the first clamping bar amplifies section (7) amplify the equal in length of section (9),
The end of the end of the first clamping bar measuring section (6) and the second clamping bar measuring section (8) is hinged with respectively a probe (10), the end of the first clamping bar amplification section (7) is hinged on the zero graduation line place of scale (1), the second clamping bar amplifies section (9) end and is provided with horizontal trolley (11), horizontal trolley (11) slides along scale (1), on horizontal trolley (11), be hinged with vernier scale (2), the pin joint of horizontal trolley (11) and vernier scale (2) is at the zero graduation line place of vernier scale (2), vernier scale (2) slides along scale (1) under the promotion of horizontal trolley (11), the zero graduation line place of vernier scale (2) is provided with the pointer (12) vertical with vernier scale (2), pointer (12) is fitted in scale (1) surface and moves under the drive of vernier scale (2).
2. glue into concrete beam cracks development tester as claimed in claim 1, is characterized in that, the Length Ratio that the length of the first described clamping bar measuring section (6) and the first clamping bar amplify section (8) is 1:10; The Length Ratio that the length of the second described clamping bar measuring section (7) and the second clamping bar amplify section (9) is 1:10.
3. glue into concrete beam cracks development tester as claimed in claim 2, is characterized in that, the scale on described vernier scale (2) is divided into 10 deciles by the physical length of 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741264.3U CN203572393U (en) | 2013-11-20 | 2013-11-20 | Crack development tester for concrete bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741264.3U CN203572393U (en) | 2013-11-20 | 2013-11-20 | Crack development tester for concrete bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572393U true CN203572393U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320741264.3U Expired - Fee Related CN203572393U (en) | 2013-11-20 | 2013-11-20 | Crack development tester for concrete bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203572393U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596395A (en) * | 2015-02-12 | 2015-05-06 | 郑州大学 | Earth-sheltered dwelling vault crack width monitoring device |
| CN106403754A (en) * | 2016-09-20 | 2017-02-15 | 浙江省特种设备检验研究院 | Crane part multidimensional comprehensive measuring tool |
| FR3050522A1 (en) * | 2016-04-21 | 2017-10-27 | Jean Pierre Yves Borges | APPARATUS FOR MEASURING THE EVOLUTION OF THE WIDTH OF A CRACK |
| CN107990816A (en) * | 2017-12-26 | 2018-05-04 | 江苏翰烽美筑工程技术有限公司 | A kind of pavement flatness checking device and detection method |
| CN108278949A (en) * | 2018-01-19 | 2018-07-13 | 中南林业科技大学 | A kind of standing tree dimension measurement method based on ribbon amount arm anchor ear |
-
2013
- 2013-11-20 CN CN201320741264.3U patent/CN203572393U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596395A (en) * | 2015-02-12 | 2015-05-06 | 郑州大学 | Earth-sheltered dwelling vault crack width monitoring device |
| FR3050522A1 (en) * | 2016-04-21 | 2017-10-27 | Jean Pierre Yves Borges | APPARATUS FOR MEASURING THE EVOLUTION OF THE WIDTH OF A CRACK |
| CN106403754A (en) * | 2016-09-20 | 2017-02-15 | 浙江省特种设备检验研究院 | Crane part multidimensional comprehensive measuring tool |
| CN107990816A (en) * | 2017-12-26 | 2018-05-04 | 江苏翰烽美筑工程技术有限公司 | A kind of pavement flatness checking device and detection method |
| CN108278949A (en) * | 2018-01-19 | 2018-07-13 | 中南林业科技大学 | A kind of standing tree dimension measurement method based on ribbon amount arm anchor ear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |