CN2510852Y - Surface-sticked intelligent digital vibration wire strain gauge - Google Patents
Surface-sticked intelligent digital vibration wire strain gauge Download PDFInfo
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- CN2510852Y CN2510852Y CN 01257348 CN01257348U CN2510852Y CN 2510852 Y CN2510852 Y CN 2510852Y CN 01257348 CN01257348 CN 01257348 CN 01257348 U CN01257348 U CN 01257348U CN 2510852 Y CN2510852 Y CN 2510852Y
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- casing
- intelligent digital
- seat
- string
- vibrating string
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Abstract
A surface-mounted intelligent digital vibrating string strain gauge is disclosed, which comprises: a rigid vibrating string casing, which is coated tightly in the tube hole of the left and the right end bases; a tense steel vibrating string, which is anchored between the anchor holes of the left and the right end bases along the medial axis of the vibrating string casing; a machine shell, which is fixed outside of the vibrating string casing, and a processing circuit is packaged therein. The utility model is characterized in that a screw thread device used for the head pushing to the shoulder surface of the assorted end base is fixed on one end of the vibrating string casing, which is a section of casing with a big round head and a small round head. A seal ring groove coated with an O-shaped seal ring is cut on the small round head to fit transitionally with the relevant tube hole. The screw threads with head pushing screw cap are curved on the big round head. Three pin via holes are curved evenly surrounding the end face of the big round head and the relevant shoulder of the end base, where the dead rotating pins are inserted into transitionally. The slots of the anchor holes of the end bases and the end base radially pressing screw are sealed by the elastic sealant. The consolidation reliability of the end base, the range and the accuracy of the measurement are all improved greatly.
Description
Technical field: the utility model relates to the vibrating string extensometer field, and the innovation improvement of formula vibratory strain ga(u)ge structure is pasted on the surface that relates in particular to test concrete and steel construction.
Background technology: the formula vibratory strain ga(u)ge is pasted on surface in the past; the equal close-fitting in the two ends of its rigidity vibration string casing is incorporated in the end seat pore at two, can not endwisely slips; its purpose has two: one, and the vibratory string in the seal protection pipe is avoided extraneous interference, destruction; the 2nd, support the also two ends seat at its two of tensioning, thereby make the abundant tensioning of vibratory string that is anchored in the seat anchor hole of two ends to reach the purpose of starting of oscillation.Two head end seats are sticked on tested steel construction or imbed on the relevant position on detected concrete surface, treat fixed after, when tested steel construction and concrete produce stress, strain under various external force effects, promptly this stress, strain can be passed on two head end seats and the vibratory string therebetween, and then output vibratory string frequency signal, realize test purpose.But, surface in the past is incorporated in the end seat pore at two because pasting the equal close-fitting in two ends of the rigidity vibration string casing of formula vibratory strain ga(u)ge, can not be in axial sliding, although after two head end seats are fixed, the scalable housing screw is further regulated the rate of tension of vibratory string avoids being subjected to the rigidity vibration string casing so that tested steel construction or concrete ess-strain pass to vibratory string as far as possible damping, actual effect is but extremely limited: a large portion ess-strain has still passed to the rigidity vibration string casing, one has influenced the accuracy of vibratory string frequency signal, range, two usually cause the fixed destruction of the flexural deformation of rigidity vibration string casing or two head end seats and measured surface, cause strainometer to lose efficacy.
Summary of the invention: technical problem to be solved in the utility model is a kind of damping action that can avoid the rigidity vibration string casing fully will be provided, whole ess-strains all can be passed to vibratory string and the end fixed reliability of seat and measure range and formula intelligent digital vibratory strain ga(u)ge is pasted on surface that accuracy all improves greatly.
The technical solution of the utility model is for this reason: a kind of surperficial subsides formula intelligent digital vibratory strain ga(u)ge, on a left side, close-fitting is socketed with the vibration string casing of a rigidity in the pore of right two ends seat, along on the vibration string casing axis, on a left side, anchor draws the steel vibratory string of a tensioning between the anchor hole of right two ends seat, outside above-mentioned vibration string casing, also be fixed with casing, be packaged with permanent magnet in the casing, inductive coil and treatment circuit, it is characterized in that: a termination of described vibration string casing tightens the screw device that intrinsic shoulder face to institute's abutting end seat is made pushing tow, and this sleeve pipe termination is made transition fit by " O " V-shaped ring in the pore of this end seat.
Described pushing tow screw device is one section pipe box that is divided into large and small round end, has " O " V-shaped ring groove and be with " O " V-shaped ring to make transition fit with corresponding pore on the little round end of pipe box; At got on the bus screw thread and be combined with the pushing tow nut of the periphery of the big round end of pipe box, on the end face of big round end and the corresponding end seat shoulder body, have some coaxial pin via holes, and transition fit is gone into the spinning stop pin nail so that pipe box and respective end pedestal fuse with circumferentially only revolving with the footpath with also circumferentially dividing equally.
Described spinning stop pin nail has three, and evenly distributes on same circumference.
The fastening of described pipe box and vibration string casing realizes by thread connection.
Described vibratory string is by cylinder string folder, makes wringing fit in the tapering anchor hole of left and right two ends seat, and is equipped with end seat radial compaction screw and anchor is tight; Described casing fixedly be to make wringing fit by the flat outer cross section in its flat mesopore and vibration string casing stage casing to realize.
Described vibration string casing is non magnetic stainless steel; The seam place, hole of described end seat anchor hole and end seat radial compaction screw all seals with elastic sealant.
Because said structure improves, and the utlity model has following advantage:
Be furnished with the pushing tow nut on the big round end of the large and small round end pipe box that connects firmly with rigidity vibration string casing one termination, rotate this pushing tow nut, can drive rigidity vibration string casing and little round end and in the pore of end seat, endwisely slip easily; When becoming the seat stickup of meter two ends or imbedding steel, mix on the body structure surface and when not fixed as yet, need the rotary lifting nut outwards to strut the end seat at two as far as possible, so that the abundant tensioning of vibratory string, after treating that two ends seat and tested steel and concrete structure adhesion are fixed, promptly need reverse rotation pushing tow nut that it is broken away from the respective end seat and take on contacting of face, this moment, little round end and rigidity vibration string casing can endwisely slip in end seat pore easily by sealing ring, make the affixed point of end seat and place at two become two simple fulcrums of vibratory string, removed of tension force and the damping of rigidity vibration string casing fully vibratory string; Owing to removed rigid casing, make strainometer two head end seats simplify fully the acting force of vibratory string and reduce greatly, thereby make the affixed reliability of strainometer and measure range and accuracy all increases greatly the stressed interference of vibratory string; And on the little round end overlap sealing ring and can make seal protection vibratory string, prevent external dust, steam invasion and attack, do not reduce the useful life of vibratory string.
Description of drawings: the utility model is made an explanation below in conjunction with accompanying drawing.
Fig. 1 is the main cut-open view of the utility model embodiment.
Fig. 2 is the upward view of the utility model embodiment.
Fig. 3 is the left view of the utility model embodiment.
Embodiment: as Fig. 1,2, shown in 3, be surperficial subsides formula intelligent digital vibratory strain ga(u)ge embodiment of the present utility model: on a left side, right two ends seat 1,2 pore 3-1, close-fitting is socketed with the vibration string casing 4 of a rigidity in the 3-2, along on vibration string casing 4 axis, on a left side, 5 anchors of anchor hole of right two ends seat draw the steel vibratory string 6 of a tensioning, outside above-mentioned vibration string casing 4, also be fixed with casing 7, be packaged with permanent magnet in the casing 7, inductive coil and treatment circuit (all representing) with " * " shape, it is characterized in that: be fastened with the screw device of the shoulder face 2-1 of institute's abutting end seat 2 being made pushing tow by thread connection on the termination of described vibration string casing 4, it is one section and is divided into big, the pipe box of little round end has " O " V-shaped ring groove and is with " O " V-shaped ring 9 to make transition fit with corresponding pore 3-2 on the roundlet head 8-1 of pipe box; At got on the bus screw thread and be combined with pushing tow nut 10 of the periphery of the big round end 8-2 of pipe box, on the end face of big round end 8-2 and the corresponding end seat 2 shoulder body 2-1, have three coaxial pin via holes 11 (only draw one of them), and transition fit is gone into spinning stop pin nail 12 so that pipe box 8-1 and 8-2 and respective end pedestal 2 fuse with circumferentially only revolving with the footpath with also circumferentially dividing equally.
Described vibratory string 6 is by cylinder string folder 13, makes wringing fit in the tapering anchor hole 5 of left and right two ends seat 1,2, and is equipped with end seat radial compaction screw 14 and anchor is tight; Described casing 7 fixedly be that flat outer cross section 4-1 by its flat mesopore and vibration string casing stage casing makes wringing fit and realizes.
Described vibration string casing 4 is non magnetic stainless steels; The seam place, hole of described end seat anchor hole 5 and end seat radial compaction screw 14 all seals with elastic sealant.
Claims (6)
1, a kind of surperficial subsides formula intelligent digital vibratory strain ga(u)ge, on a left side, close-fitting is socketed with the vibration string casing of a rigidity in the pore of right two ends seat, along on the vibration string casing axis, on a left side, anchor draws the steel vibratory string of a tensioning between the anchor hole of right two ends seat, outside above-mentioned vibration string casing, also be fixed with casing, be packaged with permanent magnet in the casing, inductive coil and treatment circuit, it is characterized in that: a termination of described vibration string casing tightens the screw device that intrinsic shoulder face to institute's abutting end seat is made pushing tow, and this sleeve pipe termination is made transition fit by " O " V-shaped ring in the pore of this end seat.
2, surperficial subsides formula intelligent digital vibratory strain ga(u)ge as claimed in claim 1, it is characterized in that: described pushing tow screw device is one section pipe box that is divided into large and small round end, has " O " V-shaped ring groove and be with " O " V-shaped ring to make transition fit with corresponding pore on the little round end of pipe box; At got on the bus screw thread and be combined with the pushing tow nut of the periphery of the big round end of pipe box, on the end face of big round end and the corresponding end seat shoulder body, have some coaxial pin via holes, and transition fit is gone into the spinning stop pin nail so that pipe box and respective end pedestal fuse with circumferentially only revolving with the footpath with also circumferentially dividing equally.
3, surperficial subsides formula intelligent digital vibratory strain ga(u)ge as claimed in claim 2 is characterized in that: described spinning stop pin nail has three, and evenly distributes on same circumference.
4, surperficial subsides formula intelligent digital vibratory strain ga(u)ge as claimed in claim 2, it is characterized in that: the fastening of described pipe box and vibration string casing realizes by thread connection.
5, as arbitrary described surperficial subsides formula intelligent digital vibratory strain ga(u)ge in the claim 1,2,3,4, it is characterized in that: described vibratory string, be by cylinder string folder, in the tapering anchor hole of left and right two ends seat, make wringing fit, and be equipped with end seat radial compaction screw and anchor is tight; Described casing fixedly be to make wringing fit by the flat outer cross section in its flat mesopore and vibration string casing stage casing to realize.
6, surperficial subsides formula intelligent digital vibratory strain ga(u)ge as claimed in claim 5, it is characterized in that: described vibration string casing is non magnetic stainless steel; The seam place, hole of described end seat anchor hole and end seat radial compaction screw all seals with elastic sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257348 CN2510852Y (en) | 2001-11-16 | 2001-11-16 | Surface-sticked intelligent digital vibration wire strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257348 CN2510852Y (en) | 2001-11-16 | 2001-11-16 | Surface-sticked intelligent digital vibration wire strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510852Y true CN2510852Y (en) | 2002-09-11 |
Family
ID=33666125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257348 Expired - Lifetime CN2510852Y (en) | 2001-11-16 | 2001-11-16 | Surface-sticked intelligent digital vibration wire strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510852Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301396C (en) * | 2005-06-10 | 2007-02-21 | 柳贵东 | Strain gage with controllable range mechanically and manufacturing method |
| CN100549644C (en) * | 2006-12-26 | 2009-10-14 | 河海大学 | Vibrating chord type dynamometer of hollow anchor bar |
| CZ302834B6 (en) * | 2010-12-21 | 2011-11-30 | Ceské vysoké ucení technické v Praze Klokneruv ústav | General-purpose contact strain gauge |
| CN102519631A (en) * | 2011-11-22 | 2012-06-27 | 上海市建筑装饰工程有限公司 | Safety detection device for horizontal bearing capacity of balustrade with glass panel in building engineering and detection method thereof |
| CN105091806A (en) * | 2015-08-24 | 2015-11-25 | 南京南瑞集团公司 | High pressure-resistant vibrating wire strain gauge |
| CN105784209A (en) * | 2016-01-27 | 2016-07-20 | 王建美 | Vibrating string sensor |
| CN106289122A (en) * | 2016-09-14 | 2017-01-04 | 广西交通科学研究院 | Fracture width change monitoring device based on string vibration frequency |
| CN108106527A (en) * | 2017-11-29 | 2018-06-01 | 南瑞集团有限公司 | A kind of miniature vibrating string extensometer |
| CN109631811A (en) * | 2019-01-07 | 2019-04-16 | 新疆交通建设集团股份有限公司 | Vibrating string type strain transducer and preparation method thereof |
-
2001
- 2001-11-16 CN CN 01257348 patent/CN2510852Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301396C (en) * | 2005-06-10 | 2007-02-21 | 柳贵东 | Strain gage with controllable range mechanically and manufacturing method |
| CN100549644C (en) * | 2006-12-26 | 2009-10-14 | 河海大学 | Vibrating chord type dynamometer of hollow anchor bar |
| CZ302834B6 (en) * | 2010-12-21 | 2011-11-30 | Ceské vysoké ucení technické v Praze Klokneruv ústav | General-purpose contact strain gauge |
| CN102519631A (en) * | 2011-11-22 | 2012-06-27 | 上海市建筑装饰工程有限公司 | Safety detection device for horizontal bearing capacity of balustrade with glass panel in building engineering and detection method thereof |
| CN105091806A (en) * | 2015-08-24 | 2015-11-25 | 南京南瑞集团公司 | High pressure-resistant vibrating wire strain gauge |
| CN105091806B (en) * | 2015-08-24 | 2017-09-15 | 南京南瑞集团公司 | High pressure resistant vibrating string extensometer |
| CN105784209A (en) * | 2016-01-27 | 2016-07-20 | 王建美 | Vibrating string sensor |
| CN106289122A (en) * | 2016-09-14 | 2017-01-04 | 广西交通科学研究院 | Fracture width change monitoring device based on string vibration frequency |
| CN108106527A (en) * | 2017-11-29 | 2018-06-01 | 南瑞集团有限公司 | A kind of miniature vibrating string extensometer |
| CN109631811A (en) * | 2019-01-07 | 2019-04-16 | 新疆交通建设集团股份有限公司 | Vibrating string type strain transducer and preparation method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111116 Granted publication date: 20020911 |