CN202255804U - Combined type multipoint flexometer - Google Patents
Combined type multipoint flexometer Download PDFInfo
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- CN202255804U CN202255804U CN2011202583590U CN201120258359U CN202255804U CN 202255804 U CN202255804 U CN 202255804U CN 2011202583590 U CN2011202583590 U CN 2011202583590U CN 201120258359 U CN201120258359 U CN 201120258359U CN 202255804 U CN202255804 U CN 202255804U
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- water pipe
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- pipe
- combined type
- elastic deformation
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Abstract
A combined type multipoint flexometer comprehensively applies a tee-joint water pipe horizontal principle and a mechanical elastic deformation testing principle, can be used for high-accuracy displacement measurement, and comprises a plurality of soft water pipes and hard vertical tee-joint water pipes, wherein the soft water pipes can be assembled at random and are communicated with one another; bubbles are installed on the hard water pipes so as to ensure the levelness in pipe measuring and point distribution; the soft water pipe end and the tee-joint connection section of the hard water pipe are connected with each other through a connector which is easy to assemble and has reliable watertightness; and each hard water pipe can be lengthened in sections, and the upper section of the hard water pipe is vertically provided with an elastic deformation gauge from the top, and the lower end of the elastic deformation gauge is provided with a float. The combined type multipoint flexometer has a simple structure, is convenient to use and easy to assemble, and has high measuring accuracy.
Description
Technical field
The utility model relates to fleximeter, is specially a kind of combined type multiple spot fleximeter.
Background technology
At present, an important content being arranged in the bridge load test is exactly that the stiffness characteristics of reflect structure is measured in the distortion (amount of deflection) of structure under load action.Bridge carries out deflection test has following method:
1. spirit-leveling instrument method or total powerstation method.Its principle is on structure, to arrange the plurality of fixed measuring point in advance; With certain fixed point that wherein places structure or put in addition a bit on the constant form point outside structure; Then according to the measurement of the level principle; At each absolute altitude changing value that loads the back with Sopwith staff measurement each point, be used to calculate the amount of deflection of structure under load action.Advantage is to carry out multimetering, need be at mounting base under the bridge etc., and the equipment amount of carrying is few, and expense is lower.Shortcoming is that measuring accuracy is low, generally can only be accurate to mm (micrometer associating precision can bring up to 0.1mm), and measures visibility and receive the influence of environment temperature, humidity, the influence of instrument level with precision, and the accuracy that measurement result also receives point of staff influences.Test speed is slow for a long time for point, and is inapplicable for the structure that accuracy requirement is high.
2. contact displacement meter method: contact displacement meter such as dial gauge (clock gauge), backguy displacement meter, slip rheostat displacement meter.Displacement meter Displacement Measurement precision is Gao Zhun very, can reach 0.01-0.001mm.The instrument and equipment volume is also little, and is easy to carry, at the bottom of the expense.Various contact displacement meter measuring principles are different, but metering system is similar, mainly are the variations that measures the distance between measuring point and the permanent datum.Be used for deflection of bridge span and measure, then need on bridge structure, select a measuring point, and on ground under the bridge measuring point, arrange a permanent datum, the relative displacement of measuring at 2 promptly is the deflection value of measuring point.But some bridge is to stride water cross-line works, builds support for displacement meter and expends money and time, even maybe not.Therefore this type of displacement meter can not well be adapted to stride the amount of deflection high-acruracy survey of water bridge structure.
3. the non-contact laser displacement meter is a kind of electrooptical device of band signal processor, and it utilizes projection theory non-cpntact measurement dimension of object or an object length.Measuring method is that displacement meter is fixed on a certain constant reference mark; Then with the specific measuring point of laser beam directive structure; Measure the variation of the relative beam distance between these 2; But some laser displacement gauge reading is the variation (like the laser profiler) of the elevation angle and distance, can measure the displacement variable of both direction like this.Measuring accuracy is high, can reach 0.01mm, and easy to operate.Yet this measuring method is still unavailable under bridge spanning the river; Adopt oblique survey method in other positions; The measuring point that laser shone before and after then loading can not guarantee it is same position, and small measuring point out-of-flatness just possibly cause very big error, can not realize high-acruracy survey.
4, be communicated with the liquid level gauge method, its measuring principle be according to communicating pipe water level be maintained at the same horizontal plane, inquire into structural deflection according to the variation of water level before and after the distortion.Measuring operation be with wherein placing not of some communicating pipes can the RP of downwarp on, all the other each pipes are arranged on the bridge floor measuring point.This measuring technique has and not influenced by multi-faceted distortion and bridge on-the-spot high dirt, high humidity and thick fog, can realize that the multiple spot amount of deflection detects, and is applied widely, the cost performance advantages of higher.Shortcoming is that system bulk is bigger, and the carrying ornaments are trouble comparatively.And if employing is purchased flexible pipe on the spot and is used to splice communicating pipe to alleviate the equipment amount of carrying, on-the-spot splicing usually is difficult to guarantee watertightness again, occurs leaking to the reading influence greatly, need expend a lot of times sometimes and solve this problem.Adopt mm scale counting common communicating pipe; Adopt manual work to read the liquid level method; Can receive the influence of person in charge's sight line difference of cambered surface that the surface tension of verticality, the water of stand pipe produces and reading person, so its precision is relatively poor, the malformation measurement that inapplicable distortion is little, accuracy requirement is high.High-precision connection liquid level gauge is also arranged; Like the connection liquid level settlement gauge of Changsha gold sign indicating number exploitation, be the intelligent displacement transducer of a kind of inductance fm class, by forming accurate liquid level gauge, level tank and communicating pipe; Sensitivity can reach 0.01mm, and can realize sedimentation long term monitoring and automatic measurement.Its shortcoming is if be used for multimetering, and then system bulk big and heavy (adopting metal matter tank body and pipe) is not easy to carry, and expense is high.
The utility model content
The technical matters that the utility model solved is to provide a kind of combined type multiple spot fleximeter; It can integrate communicating pipe and contact displacement meter advantage separately; It is a kind of practical instrument that can realize bridge structure multiple spot deflection metrology; And possess advantages such as assembly unit is convenient, watertightness is good, precision is higher, and maintenance cost is lower.
A kind of combined type multiple spot fleximeter, the ultimate principle of measuring amount of deflection is consistent with the principle of communicating pipe measuring amount of deflection, but the higher accurate liquid level gauge of price is not adopted in the variation of measuring liquid level, and adopt cheap relatively high sensitivity elastic deformation meter.Specifically comprise: several the soft water pipe, the hard that are interconnected of assembly unit erect three water service pipes arbitrarily.Wherein, each hard water pipe top all is fixed with a demountable lid structure, is used for fixing the elastic deformation meter; The elastic deformation meter that said detachable caping is fixing, it is constant that the lower end is suspended a cross dimensions in midair, is of convenient length; The float that buoyancy is moderate; Half is positioned on the liquid level and is as the criterion can guarantee float in specific requirement, simultaneously, erects three water service pipes at hard air level is installed; Level when layouting with assurance survey pipe, the soft water pipe end connects assembly with hard water pipe three-way connection Duan Youyi and the reliable joint of watertightness is connected.
Another aspect of the utility model is that the splicing with communicating pipe improves, and equipment is easy to carry is easy to assembly unit and spreading, and guarantee its watertightness.Hard water pipe lower end is designed to the tee pipe coupling form, is convenient to be connected with soft water pipe, the soft water pipe of each section also is designed to the belt lacing form, each other spreading or splice easily with pipe adapter under the hard water pipe.Joint form is a cassette, connects quick rapidly.
In the utility model, hard water pipe side is other can install an air level, in order to guarantee vertically layouting of pipe.
In the utility model, the reading of elastic deformation meter design comprises the elastic deformation value that the variation of up-down value and the buoyancy of float causes.
Beneficial effect: the advantage and the benefit of the utility model are:
1. make up the horizontal characteristic of the water surface of connection water pipe and the intensive reading of high precision displacement meter and counted characteristic, can measuring accuracy have been reached 0.01mm.
2. the hard water pipe of each setting all has air level, can guarantee that in surveying work water pipe is upright, thereby improves the precision that reading is measured.
3. elastic deformation meter dial plate is fixed on dismountable vinyl cover, and the spring of deformation gauge can pass vinyl cover.Guarantee that spring shrinks freely, make serviceable life more permanent.
Have between each pipe fitting can ease of assembly the joint of dismounting, be convenient to small size and carry and open-air assembling.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model preferred embodiment;
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
A kind of combined type multiple spot fleximeter referring to Fig. 1; Its hard water pipe 2 body sides are other to be equipped with an air level 5 that is used to guarantee horizontal level, simultaneously, in hard water pipe 2 bottoms one watertight connector 8 is installed in addition; The other flexible pipe 4 that connects of watertight connector 8 sides is used to connect other bodys.
Set inside at the hard water pipe 2 of present embodiment has a float 3, and float 3 tops are passed pipe top fixed cap 6 through spring and are connected on the elastic deformation meter 1, and simultaneously, fixed cap 6 also has a pore structure 7 on the pipe top, is used to into water and ventilation.
More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. combined type multiple spot fleximeter comprises that several soft water pipe, hard that are interconnected erect three water service pipes, it is characterized in that; Each hard water pipe top all is fixed with a detachable cover, is used for fixing the elastic deformation meter, the elastic deformation meter that said detachable cover caping is fixing; The lower end is suspended the constant float of a cross dimensions in midair; Simultaneously, erect three water service pipes at hard air level is installed, the soft water pipe end connects assembly with hard water pipe three-way connection Duan Youyi and the reliable joint of watertightness is connected.
2. a kind of combined type multiple spot fleximeter according to claim 1 is characterized in that said hard water pipe lower end is the tee pipe coupling form, and the soft water pipe of each section all has joint, each other spreading or splice easily with pipe adapter under the hard water pipe.
3. a kind of combined type multiple spot fleximeter according to claim 1 is characterized in that, said hard water pipe side side is equipped with an air level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202583590U CN202255804U (en) | 2011-07-20 | 2011-07-20 | Combined type multipoint flexometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202583590U CN202255804U (en) | 2011-07-20 | 2011-07-20 | Combined type multipoint flexometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255804U true CN202255804U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202583590U Expired - Fee Related CN202255804U (en) | 2011-07-20 | 2011-07-20 | Combined type multipoint flexometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322827A (en) * | 2011-07-20 | 2012-01-18 | 舒小娟 | Combined multi-point deflectometer and method for measuring deflection |
| CN106525366A (en) * | 2016-11-23 | 2017-03-22 | 广西交通科学研究院 | Magnetic suspension type bridge deflection measuring device and measuring method thereof |
-
2011
- 2011-07-20 CN CN2011202583590U patent/CN202255804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322827A (en) * | 2011-07-20 | 2012-01-18 | 舒小娟 | Combined multi-point deflectometer and method for measuring deflection |
| CN106525366A (en) * | 2016-11-23 | 2017-03-22 | 广西交通科学研究院 | Magnetic suspension type bridge deflection measuring device and measuring method thereof |
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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: 20120530 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |