CN203760716U - Simple steel bridge fatigue test strain gauge wiring terminal - Google Patents
Simple steel bridge fatigue test strain gauge wiring terminal Download PDFInfo
- Publication number
- CN203760716U CN203760716U CN201420156747.1U CN201420156747U CN203760716U CN 203760716 U CN203760716 U CN 203760716U CN 201420156747 U CN201420156747 U CN 201420156747U CN 203760716 U CN203760716 U CN 203760716U
- Authority
- CN
- China
- Prior art keywords
- pressure
- ray film
- flexible connector
- foil gauge
- conductive copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000009661 fatigue test Methods 0.000 title abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 31
- 239000011888 foil Substances 0.000 claims description 46
- 238000012360 testing method Methods 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a simple steel bridge fatigue test strain gauge wiring terminal which comprises a base and a wiring device. The base comprises a base plate (1), a magnetic steel sheet (6) and a conductive copper sheet (5). The wiring device comprises a wire pressing sheet (2), a wire pressing sheet button (3), a fixing groove (4), a fixing rod (7), a tension elastic connector (8a) and a pressed elastic connector (8b). By the wire pressing sheet (2), fast connection of a wire (10) or a strain gauge outgaining wire (11) and a strain gauge terminal, and any strain gauge adhering environments can be adapted to. The magnetic steel sheet (6) is disposed on the lower portion of the base plate (1), terminal mounting and demounting can be achieved, and recycling can be achieved. By the simple steel bridge fatigue test strain gauge wiring terminal, fast connection of a strain gauge and the wire is achieved, recycling can be achieved, convenient mounting and demounting can be achieved, strain gauge adhering efficiency is increased greatly, and experiment preparation time is shortened.
Description
Technical field
The utility model belongs to technical field of civil engineering, is specifically related to a kind of simple steel bridge testing fatigue foil gauge binding post.
Background technology
In recent years, along with economic fast development, China has built many large span steel box beam bridges.Owing to bearing for a long time the effect of alternate load, cause steel case beam easily to produce fatigue crack in weld seam junction, the degree of fatigue that need to carry out fatigue crack to bridge carries out health monitoring.In order to record stress, the strain value at tested position, must use foil gauge, and must carry out according to correct strain gauge adhesion method the stickup of foil gauge.And in pasting foil gauge process, at the upper weld strain sheet lead-out wire of foil gauge terminal (hereinafter to be referred as terminal) and wire, be committed step, welded the actual detection of bad influence effect.When required stickup foil gauge is more, loaded down with trivial details welding process has not only increased the time of experiment, and also can cause again pasting by breaking to paste intact foil gauge lead-out wire because of carelessness, seriously expend time in, and the not reproducible utilization of terminal.Engendered in recent years a kind of foil gauge from having insulation conducting wire, non-binding post, can directly foil gauge be connected with wire, but this foil gauge is expensive, and when quantity required is huge, experiment fees is difficult to support.
Therefore, need a kind of new foil gauge binding post, can realize foil gauge lead-out wire and be connected with the quick of wire, and can reuse.
Utility model content
Utility model object: the utility model provides a kind of simple steel bridge testing fatigue foil gauge binding post, can effectively improve wiring efficiency, and can realize recycling.
Technical scheme: for realizing above-mentioned technical problem, simple steel bridge testing fatigue foil gauge binding post of the present utility model is taked following technical scheme:
A simple steel bridge testing fatigue foil gauge binding post, comprises pedestal and termination, and described pedestal comprises base plate, magnetic links, conductive copper sheet; Described magnetic links is connected to the lower surface of base plate, and described conductive copper sheet is two, all sticks on the upper surface of base plate; Each termination of conductive copper sheet is an equipped termination all; Described termination comprises pressure-ray film, pressure-ray film button, holddown groove, fixed lever, tension Flexible Connector, pressurized Flexible Connector; Holddown groove is fixedly mounted on plate upper surface corresponding to the tip position of conductive copper sheet, pressure-ray film, fixed lever, tension Flexible Connector, pressurized Flexible Connector are all arranged in the inner chamber of holddown groove, one end of pressure-ray film button is fixedly connected with and is integral with pressure-ray film through after the cell wall of holddown groove, on the line pressing component that described pressure-ray film button, pressure-ray film form, fixed lever is installed, fixed lever is rotatably installed in the inner chamber of holddown groove; The two ends of tension Flexible Connector are connected with the top of holddown groove, the upper end of line pressing component respectively, and the two ends of pressurized Flexible Connector are connected with conductive copper sheet with the lower end of line pressing component respectively; Under the elastic force effect of tension Flexible Connector, pressurized Flexible Connector, described pressure-ray film and described conductive copper sheet close contact; Described holddown groove is offered wiring hole corresponding to the contact site of pressure-ray film and described conductive copper sheet on cell wall; Foil gauge connecting line or connection wire are placed between pressure-ray film and described conductive copper sheet by wiring hole.
Two described conductive copper sheets are arranged in parallel.
In two described conductive copper sheets, in two terminations of a side wherein, all by a foil gauge connecting line, be connected with foil gauge; Termination, both sides in opposite side, is connected respectively wire and connects with one.
Tension Flexible Connector, pressurized Flexible Connector are spring.
Tension Flexible Connector, pressurized Flexible Connector are arranged on same straight line.
Beneficial effect: the utility model has been realized foil gauge and wire quick connecting method, has improved Preparatory work of experiment efficiency.By pressure-ray film mode, connect wire, than being welded with better operability, the magnetic links by bottom is adsorbed on steel surface, and installation and removal easily, have realized the recycling of foil gauge terminal.
Accompanying drawing explanation
Fig. 1 is the vertical view of simple steel bridge testing fatigue foil gauge binding post of the present utility model;
Fig. 2 is the base plate copper sheet layout of simple steel bridge testing fatigue foil gauge binding post of the present utility model;
Fig. 3 is the termination normal cross sectional drawing of simple steel bridge testing fatigue foil gauge binding post of the present utility model;
Fig. 4 is the termination wiring process schematic diagram of simple steel bridge testing fatigue foil gauge binding post of the present utility model;
Fig. 5 is the termination cross-sectional side view of simple steel bridge testing fatigue foil gauge binding post of the present utility model;
In Fig. 1 and Fig. 2,1, base plate; 2, pressure-ray film; 3, pressure-ray film button; 4, holddown groove; 5, conductive copper sheet; 6, magnetic links; 7, fixed lever; 8a, extension spring; 8b, compression spring; 9, foil gauge; 10, connect wire; 11, foil gauge lead-out wire.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
embodiment 1
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, simple steel bridge testing fatigue foil gauge binding post described in the utility model, comprises pedestal, termination; Wherein:
Described pedestal, comprise base plate 1, magnetic links 6, conductive copper sheet 5, magnetic links 6 is arranged on base plate 1 bottom, size is consistent with base plate 1, and be closely connected with base plate 1, conductive copper sheet 5 is pasted on the upper surface of base plate 1, totally two, two conductive copper sheets are parallel to each other, and every a slice conductive copper sheet all arranges respectively a termination at two ends;
Described termination, all arranges one corresponding to the termination of every a slice conductive copper sheet, comprises pressure-ray film 2, pressure-ray film button 3, holddown groove 4, fixed lever 7, extension spring 8a, compression spring 8b; Holddown groove 4 is fixedly mounted on base plate, is hollow structure, provides the space of extension spring 8a and compression spring 8 and the space that pressure-ray film 2 rotates are installed; Pressure-ray film 2 is connected with pressure-ray film button 3, is jointly fixed on fixed lever 7, and fixed lever 7 is positioned at holddown groove 4, and extension spring 8a and compression spring 8b are connected and fixed respectively groove 4 and pressure-ray film button 3, pressure-ray film 2 and conductive copper sheet 5 close contacts.
As shown in Figure 3, termination is arranged on base plate 1 two ends, presses pressure-ray film button 3, and wire 10 and foil gauge lead-out wire 11 are inserted in holddown groove 4, discharges pressure-ray film button 3 and can compress wire 10 and foil gauge lead-out wire 11.Base plate 1 bottom connects magnetic links 6, can realize whole foil gauge binding post and firmly be adsorbed on steel surface, after experiment finishes, break line 10 is connected with foil gauge lead-out wire 11, terminal can be lifted down from steel surface, do not destroyed terminal, realize and having reused.Fixed lever 7 is positioned at holddown groove 4, and pressure-ray film 2 and the co-rotational fulcrum of pressure-ray film button 3 are provided.
As shown in Figure 4, in termination, be provided with extension spring 8a and compression spring 8b, press pressure-ray film button 3, extension spring 8a tension, compression spring 8b pressurized, pressure-ray film 2 separates with conductive copper sheet 5, wire 10 or foil gauge lead-out wire 11 can be inserted.Unclamp pressure-ray film button 3, pulling force and pressure that extension spring 8a and compression spring 8b produce are on one's own account rejected pressure-ray film 2, realized the function of wire 10 or foil gauge lead-out wire 11 compressions, kept wire 10 or lead-out wire 11 and conductive copper sheet 5 close contacts, loosening.
Embodiment 2
Before experiment starts, first foil gauge 9 is sticked on to tested position, then binding post of the present utility model is adsorbed on to steel surface, press pressure-ray film button 3, in the pressure-ray film 2 of foil gauge lead-out wire 11 and wire 10 access terminations, can carry out strain measurement.After experiment finishes, press pressure-ray film button 3, take out foil gauge lead-out wire 11 and wire 10, take off terminal, in order to experiment next time, use.
Claims (5)
1. a simple steel bridge testing fatigue foil gauge binding post, is characterized in that, comprises pedestal and termination, and described pedestal comprises base plate (1), magnetic links (6), conductive copper sheet (5); Described magnetic links (6) is connected to the lower surface of base plate (1), and described conductive copper sheet is two, all sticks on the upper surface of base plate; Each termination of conductive copper sheet is an equipped termination all; Described termination comprises pressure-ray film (2), pressure-ray film button (3), holddown groove (4), fixed lever (7), tension Flexible Connector (8a), pressurized Flexible Connector (8b); Holddown groove (4) is fixedly mounted on plate upper surface corresponding to the tip position of conductive copper sheet, pressure-ray film (2), fixed lever (7), tension Flexible Connector (8a), pressurized Flexible Connector (8b) are all arranged in the inner chamber of holddown groove, one end of pressure-ray film button (3) is fixedly connected with and is integral with pressure-ray film (2) through after the cell wall of holddown groove (4), on the line pressing component that described pressure-ray film button (3), pressure-ray film (2) form, fixed lever is installed, fixed lever is rotatably installed in the inner chamber of holddown groove; The two ends of tension Flexible Connector (8a) are connected with the top of holddown groove, the upper end of line pressing component respectively, and the two ends of pressurized Flexible Connector (8b) are connected with conductive copper sheet with the lower end of line pressing component respectively; Under the elastic force effect of tension Flexible Connector (8a), pressurized Flexible Connector (8b), described pressure-ray film (2) and described conductive copper sheet (5) close contact; Described holddown groove is offered wiring hole corresponding to pressure-ray film (2) and the contact site of described conductive copper sheet (5) on cell wall; Foil gauge connecting line or connection wire are placed between pressure-ray film (2) and described conductive copper sheet (5) by wiring hole.
2. simple steel bridge testing fatigue foil gauge binding post according to claim 1, is characterized in that, two described conductive copper sheets are arranged in parallel.
3. simple steel bridge testing fatigue foil gauge binding post according to claim 1, is characterized in that, in two described conductive copper sheets, in two terminations of a side wherein, all by a foil gauge connecting line, is connected with foil gauge; Termination, both sides in opposite side, is connected respectively wire and connects with one.
4. simple steel bridge testing fatigue foil gauge binding post according to claim 1, is characterized in that, tension Flexible Connector (8a), pressurized Flexible Connector (8b) are spring.
5. simple steel bridge testing fatigue foil gauge binding post according to claim 4, is characterized in that, tension Flexible Connector (8a), pressurized Flexible Connector (8b) are arranged on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156747.1U CN203760716U (en) | 2014-04-01 | 2014-04-01 | Simple steel bridge fatigue test strain gauge wiring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156747.1U CN203760716U (en) | 2014-04-01 | 2014-04-01 | Simple steel bridge fatigue test strain gauge wiring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760716U true CN203760716U (en) | 2014-08-06 |
Family
ID=51255954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156747.1U Expired - Lifetime CN203760716U (en) | 2014-04-01 | 2014-04-01 | Simple steel bridge fatigue test strain gauge wiring terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760716U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709485A (en) * | 2018-06-28 | 2018-10-26 | 中船澄西船舶修造有限公司 | A kind of ship axis survey tool |
| CN109269691A (en) * | 2017-07-18 | 2019-01-25 | 中国航空工业集团公司济南特种结构研究所 | A kind of strain measurement foil gauge wiring construction |
| CN109813596A (en) * | 2019-01-23 | 2019-05-28 | 辽宁省水利水电科学研究院有限责任公司 | A kind of foil gauge of test specimen elasticity modulus test is connected and fixed device |
| CN114112130A (en) * | 2021-09-30 | 2022-03-01 | 河海大学 | Device and method for repeatedly measuring stress intensity factor of crack tip |
-
2014
- 2014-04-01 CN CN201420156747.1U patent/CN203760716U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269691A (en) * | 2017-07-18 | 2019-01-25 | 中国航空工业集团公司济南特种结构研究所 | A kind of strain measurement foil gauge wiring construction |
| CN108709485A (en) * | 2018-06-28 | 2018-10-26 | 中船澄西船舶修造有限公司 | A kind of ship axis survey tool |
| CN109813596A (en) * | 2019-01-23 | 2019-05-28 | 辽宁省水利水电科学研究院有限责任公司 | A kind of foil gauge of test specimen elasticity modulus test is connected and fixed device |
| CN114112130A (en) * | 2021-09-30 | 2022-03-01 | 河海大学 | Device and method for repeatedly measuring stress intensity factor of crack tip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |