CN109458996A - A kind of movable target instrument convenient to use - Google Patents
A kind of movable target instrument convenient to use Download PDFInfo
- Publication number
- CN109458996A CN109458996A CN201811385144.8A CN201811385144A CN109458996A CN 109458996 A CN109458996 A CN 109458996A CN 201811385144 A CN201811385144 A CN 201811385144A CN 109458996 A CN109458996 A CN 109458996A
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- pedestal
- bracket
- target instrument
- fluted disc
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- 238000005259 measurement Methods 0.000 claims abstract description 118
- 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 abstract description 52
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 210000003781 tooth socket Anatomy 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Abstract
The invention discloses a kind of movable target instrument convenient to use, including the pedestal that can be fixed in the installation pedestal of measurement point, the measurement bracket that can be movably set on the base, the measurement point position is between stationary target instrument and the measuring instrument that observation point is arranged in, measuring basis is equipped in the leading flank of measurement bracket, the regulating mechanism of adjustable frames levelness is equipped in the bottom of pedestal, in the front side of pedestal, rear side is respectively provided with metering scale of the measurement bracket with respect to the shift value of pedestal, reference graduation is equipped with close to metering scale position in measurement frame bottom.The present invention is suitable for the observation and use of different location, it is ensured that accuracy when measurement data is read.
Description
Technical field
The present invention relates to architectural engineering detection technique fields, more particularly, to a kind of movable target instrument convenient to use.
Background technique
For the engineering structures such as dam, Hui Ba, bank protection, ship lock, retaining wall, completes and pass through centainly building
After time, a degree of displacement can be generated due to being acted on by various load, when this displacement reaches a certain level, just
It will cause engineering structure to be damaged, even generate catastrophic effect.It would therefore be desirable to which the deformation to engineering structure is determined
Phase monitoring predicts future deformations development trend, and to grasp engineering structure change in displacement rule at engineering structure reinforcing
Reason provides scientific basis.
In the prior art, collimating line observation method is one of effective means of monitoring works structures horizontal displacement,
When with collimation line method monitoring works structures horizontal displacement, we firstly the need of engineering structure side find one it is firm
Then collimating instrument is arranged in the observation point in observation point；A firm fixed point is found in the engineering structure other side, in fixation
Point one fixed surveyor's beacon of setting, collimating instrument observe fixed surveyor's beacon i.e. and may make up a virtual collimation line.Then in engineering
Collimation line position is corresponded on structures, one measurement point with installation pedestal is set, be arranged one in the installation pedestal of measurement point
A movable target instrument.Movable target instrument includes the pedestal that can be fixed in the installation pedestal of measurement point, is set on the base
The measurement bracket in face, pedestal are equipped with level(l)ing mechanism, and the lower rearward side face for measuring bracket, which is equipped with, can measure a measurement bracket left side
The vernier scale of right displacement scale, the leading flank for measuring bracket are equipped with a measuring basis.When needing to measure, first by movable target
Instrument is fixed in the corresponding measurement point of engineering structure, and is made to measure on bracket by adjusting level(l)ing mechanism with measurement base
Quasi- leading flank face collimating instrument.When we move left and right measurement bracket, the measuring basis position for measuring frame upper can be made
In on collimation line.Record measures the current reading of the vernier scale of bracket trailing flank, the as initial position of engineering structure at this time.
When being measured again with identical method after being spaced a regular time, the new current reading of vernier scale can be obtained, calculate
Difference between the current reading and last reading out, that is, may know that the shift value of engineering structure.
However the existing movable target instrument for collimating line observation method has following defects that when we need to observe dam
When the positions such as sluice monolith, bank protection culvert outlet both wings, observation point side is hanging, that is to say, that can only be the one of observation point
Side people from station is observed, and the other side can not stand, people is observed.And existing movable target instrument is sighted for leading flank, trailing flank
The structure of reading, that is to say, that the necessary leading flank face collimating instrument of movable target instrument, so that collimating instrument is sighted on measurement bracket
Measuring basis.Therefore, when the trailing flank side of movable target instrument is hanging, Observation personnel can only stand to be read in side, thus shadow
The accuracy for ringing reading causes the difficulty of measurement.
Summary of the invention
The purpose of the present invention is to solve the limits of observation angle present in the movable target instrument for collimating line observation method
System can not adapt to the problem of observation point of different location, provide a kind of movable target instrument convenient to use, be suitable for different positions
The observation and use set, it is ensured that accuracy when measurement data is read.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of movable target instrument convenient to use, including can be fixed in the installation pedestal of measurement point pedestal, can move left and right
The measurement bracket that ground is set on the base, the measurement point position between stationary target instrument and the measuring instrument that observation point is set,
It is equipped with measuring basis in the leading flank of measurement bracket, is equipped with the regulating mechanism of adjustable frames levelness in the bottom of pedestal,
The front side of pedestal, rear side are respectively provided with metering scale of the measurement bracket with respect to the shift value of pedestal, in measurement bracket
Bottom is equipped with reference graduation close to metering scale position.
When needing to measure the shift value of measurement point, first movable target instrument is placed in the installation pedestal of measurement point, then
Measurement bracket is moved left and right, until the measuring instrument that collimating instrument of observation point etc is arranged in sights the measurement base on measurement bracket
Standard, metering scale corresponding to reference graduation is current displacement measurement at this time, and current displacement measurement is subtracted last position
Shift measurement value is current shift value, and it is accumulative displacement value that current displacement measurement, which is subtracted downpayment displacement measurement,.Especially
It is that the present invention is respectively provided with metering scale of the measurement bracket with respect to the shift value of pedestal in the front side of pedestal, rear side,
Therefore, survey crew can easily observe current displacement measurement in the front or behind of movable target instrument.When measurement point
When front is hanging, survey crew can read current displacement measurement behind movable target instrument；On the contrary, behind measurement point
When hanging, survey crew can read current displacement measurement before movable target instrument, so that movable target instrument be made to be suitable for not
With the observation and use of position, and ensure accuracy when measurement data is read.
Preferably, the pedestal is equipped with horizontal sliding groove, the basal sliding for measuring bracket is connected in sliding groove,
It is located at sliding groove side on pedestal and is equipped with rotatable rotary fluted disc, calibration circle is fixedly connected on the downside of rotary fluted disc
Disk, the bottom sides for measuring bracket are equipped with and the drive rack that is meshed of rotary fluted disc, the front side of dial disc, left side and
Metering scale is respectively equipped at right side edge, before being equipped on pedestal, left and right 3 reference graduations corresponding with metering scale.
It, can left and right horizontal traverse measurement branch when movable target instrument is placed into the installation pedestal of measurement point by we
Frame, the drive rack for measuring bracket lower part at this time drives rotary fluted disc rotation, and then drives dial disc rotation.Base on pedestal
Quasi- scale can show and set the corresponding metering scale of value with measurement support level displacement on dial disc.Before dial disc
Metering scale is equipped at side, rear side, left side and right side edge, therefore survey crew can stand in any one of movable target instrument
Measurement data is easily observed in side, and movable target instrument is enable fully to adapt to the needs in different measurement places.
Preferably, being equipped with the tensioning sliding slot perpendicular to measurement bracket leading flank on pedestal, the rotary fluted disc turns
The lower end of moving axis fits in tensioning sliding slot, and the tensioning pressure spring for compressing rotary fluted disc rotation axis, tensioning pressure are equipped in tensioning sliding slot
Spring driving rotary fluted disc is snug against drive rack.
Since the rotation axis lower end of rotary fluted disc is movably disposed in tensioning sliding slot, tensioning pressure spring can
It pushes rotary fluted disc transverse shifting and is snug against drive rack, to effectively eliminate between rotary fluted disc and drive rack
Back lash is conducive to improve measurement accuracy.
Preferably, the rotary fluted disc includes a circular rotating disk body, it is equipped on the periphery of rotating disk body
The U-shaped groove of annular is equipped with several to form the baffle ring radially extended at the lower edges of rotating disk body on upper baffle ring
Through the threaded hole of lower baffle ring, the threaded hole is uniformly distributed in the circumferential direction of rotating disk body, corresponds to spiral shell between upper lower baffle ring
Pin shaft is equipped at pit, the upper and lower ends of the pin shaft are respectively equipped with the location hole of cone, the threaded hole of the upper lower baffle ring
It is inside threaded with positioning screw respectively, the axially extending formation in inner end of the positioning screw between upper lower baffle ring fits in positioning
Positioning head in hole, when measurement bracket moves left and right, the pin shaft on rotary fluted disc is sequentially entered in the tooth socket of drive rack, from
And it forms drive rack and rotary fluted disc and is intermeshed.
It is known that existing Gear Processing has biggish mismachining tolerance, and in order to improve machining accuracy, it needs to use
Some expensive high-precision process equipments.Especially since the torque and load that rotary fluted disc is born are minimum, therefore,
First threaded hole is arranged on the upper lower baffle ring of rotating disk body in the present invention, then, corresponds at threaded hole and is equipped between upper lower baffle ring
Pin shaft, pin shaft are fixed between upper lower baffle ring by the positioning screw of upper and lower ends.That is, pin shaft plays one " tooth "
Effect.Since threaded hole can be process by some simple machining apparatus, and pass through the tooling of injection index dial etc
It is uniformly distributed each threaded hole in the axial direction.In addition, having between the positioning head of positioning screw end and the location hole of cone
There is good automatic centering effect, to can ensure that the position precision of a pin shaft.That is, the improvement that the present invention passes through structure
Make rotary fluted disc that there is higher precision, while facilitating its processing.
Preferably, being equipped with preceding calibration hole on the top of measurement bracket leading flank, the preceding calibration hole is that composition is described
Measuring basis is equipped with the alignment surface parallel with measurement bracket leading flank at the rear of measurement bracket, is equipped with before in alignment surface
The coaxial rear calibration hole of calibration hole, the measuring instrument are that laser emitter first uses Laser emission when measuring the micro-shifting of measurement point
Device issues laser beam towards stationary target instrument, then moves left and right measurement bracket, calibration hole before being directed at laser beam, then
By the levelness of regulating mechanism adjustment base, until laser beam also cross forward and backward calibration hole and is irradiated to stationary target
On instrument, metering scale value corresponding to reference graduation is current displacement measurement at this time.
It is known that when using the horizontal displacement of collimating line observation method survey engineering structures, the survey of movable target instrument
Measure the leading flank face collimating instrument on bracket with measuring basis, that is to say, that collimation line should be made perpendicular to measuring basis.For
This, one laser emitter of the present invention substitutes existing collimating instrument, and the calibration before the top setting of measurement bracket leading flank
Hole, be arranged and rear calibration hole that preceding calibration hole is coaxial in alignment surface, at this time laser beam emitted by laser emitter
For visual collimation line.When the light beam that laser emitter projects also cross forward and backward calibration hole and is irradiated on stationary target instrument
When, that is, prove that measurement bracket and collimation line are perpendicular, so as to the measurement being accurately displaced.Need to adjust measurement bracket
When state, we can first traverse measurement bracket, calibration hole and be irradiated in alignment surface before initially passing through laser beam, measure at this time
Personnel are the deviation it can be clearly seen that between rear calibration hole and collimation line.It, can by adjusting the level(l)ing mechanism on pedestal
Rapidly make to measure bracket and collimation line keeps plumbness, laser beam at this time is by passing through forward and backward calibration hole and irradiating
Onto stationary target instrument.That is, the present invention can make, survey crew is intuitive, quickly and easily makes to measure bracket and collimation line
Keep vertical.
Therefore, the invention has the following beneficial effects: the observations and use that are suitable for different location, it is ensured that measurement data is read
Accuracy when taking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram on front side of the first scheme of the invention.
Fig. 2 is the structural schematic diagram on rear side of the first scheme of the invention.
Fig. 3 is the structural schematic diagram on front side of second scheme of the present invention.
Fig. 4 is the structural schematic diagram on rear side of second scheme of the present invention.
Fig. 5 is a kind of structural schematic diagram of rotary fluted disc.
In figure: 1 pedestal 11, sliding groove 12, metering scale 13, tensioning sliding slot 2, measurement cradling piece 21, reference graduation
22, drive rack 23, measuring basis 24, preceding calibration hole 3, rotary fluted disc 31, rotation axis 32, rotating disk body 321, U-shaped
Groove 33, baffle ring 331, threaded hole 34, pin shaft 341, location hole 35, positioning screw 351, positioning head 4, dial disc
5, pressure spring 6, calibration plate 61, alignment surface 62, rear calibration hole are tensioned.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of movable target instrument convenient to use, it is all it is suitable for being measured using collimating line observation method
Such as the displacement situation of each measurement point of the engineering structure of dam etc, certainly, it would be desirable to be arranged in measurement point for putting
The installation pedestal of movable target instrument is set, while installing one for placing measuring instrument in the fixed bit of engineering structure side
Observation point, the fixed bit in the other side of engineering structure install one for placing the fixed point of stationary target instrument.Specifically
Including the pedestal 1 that can be fixed in the installation pedestal of measurement point, the measurement bracket 2 being set on the base, water is set on pedestal
Flat sliding groove 11, the basal sliding for measuring bracket are connected in sliding groove, to make measurement bracket that can move left and right on pedestal
It is dynamic.In addition, measuring basis 23 is arranged in the leading flank in measurement bracket, in the tune of the bottom of pedestal setting adjustable frames levelness
Mechanism is saved, metering scale 12 is set in the front side of pedestal, metering scale is equally set in the rear side of pedestal, during metering scale includes
Between position zero graduation and unilateral shift scale from zero graduation to two sides that extended to form from, in measurement frame bottom close to meter
The reference graduation 21 of alignment zero graduation is then arranged in amount graduation position.It is understood that similar installation phase can be used in regulating mechanism
The regulating mechanism of the tripod of machine does not do excessive description since such technology belongs to the prior art herein.
When needing the shift value of a certain measurement point of survey engineering structures, we first can arrange collimating instrument in observation point
Etc measuring instrument, arrange stationary target instrument in fixed point, then adjust collimating instrument, enable collimating instrument alignment and fixation surveyor's beacon
Instrument, to form a virtual collimation line between collimating instrument and stationary target instrument.Then movable target instrument is placed on survey
In the installation pedestal for measuring point, and pedestal is set to keep horizontality by the regulating mechanism of adjustment base bottom, it is ensured that collimating instrument pair
The leading flank of the measuring basis of locating tab assembly bracket leading flank, measurement bracket at this time is in the vertical state of vertical level, and
And collimation line is perpendicular to the leading flank of measurement bracket.Record metering scale value, as measurement point corresponding to reference graduation at this time
Home position measured value.After certain time interval, measurement point produces a degree of displacement, on we are repeatable
Step is stated, metering scale corresponding to reference graduation is current displacement measurement at this time, and current displacement measurement is subtracted original
Current shift value can be obtained in beginning position measurements.Similarly, when it is subsequent measure again when, metering corresponding to reference graduation
Scale is new current displacement measurement, and the current displacement obtained when one-shot measurement before which is subtracted is surveyed
New current shift value can be obtained in magnitude, and it is accumulative displacement which, which is subtracted home position measured value,
Value.
Seen from the above description, movable target instrument must all keep identical direction in each measurement, that is to say, that survey
The leading flank of amount bracket needs face measuring instrument.It is understood that being surveyed since the front side of pedestal, rear side are respectively provided with metering
Bracket is measured with respect to the metering scale of the shift value of pedestal, therefore, survey crew can be in the front or behind side of movable target instrument
Just current displacement measurement is observed.When hanging before measurement point, survey crew can read behind movable target instrument to be worked as
Phase displacement measurement；On the contrary, survey crew can read current position before movable target instrument when hanging behind measurement point
Shift measurement value so that movable target instrument be made to be suitable for the observation and use of different location, and ensures standard when measurement data is read
True property.
For the ease of observing measurement result, as shown in Figure 3, Figure 4, we can be located at sliding groove side on pedestal is arranged
Rotatable rotary fluted disc 3, the rotation axis of rotary fluted disc are vertically arranged, and a calibration circle is fixedly connected on the downside of rotary fluted disc
Disk 4, the drive rack 22 that the setting of lower front face and rotary fluted disc for measuring bracket are meshed, front side, a left side in dial disc
Metering scale is respectively set at side and right side edge, correspondingly, on pedestal be arranged before, it is left and right 3 with above-mentioned metering scale
Corresponding reference graduation.
It, can left and right horizontal traverse measurement branch when movable target instrument is placed into the installation pedestal of measurement point by we
Frame, the drive rack for measuring bracket lower part at this time drives rotary fluted disc rotation, and then drives dial disc rotation.Base on pedestal
Quasi- scale can show and set the corresponding metering scale of value with measurement support level displacement on dial disc.Before dial disc
Metering scale is equipped at side, rear side, left side and right side edge, therefore survey crew can stand in any one of movable target instrument
Measurement data is easily observed in side, and movable target instrument is enable fully to adapt to the needs in different measurement places.
It is understood that drive rack will drive rotary fluted disc and turn over equally when measuring bracket one displacement of formation
Perimeter.Therefore, we can make the outer diameter of dial disc identical with the reference diameter of rotary fluted disc, to make on dial disc
Metering scale and measure bracket shift value between formed one to one relationship.Alternatively, we can also make the outer of dial disc
Diameter is 2 times of reference diameter of rotary fluted disc, correspondingly, the shift value of metering scale and measurement bracket on dial disc it
Between form two-to-one relationship.That is, shift value is measured, scale is exaggerated, to keep metering scale more accurate
Ground shows shift value.
It should be noted that being the direction to measure the direction definition rotary fluted disc of bracket in the present embodiment.
In order to improve measurement accuracy, as shown in figure 5, perpendicular to measurement bracket leading flank can be arranged in we on pedestal
Tight sliding slot 13, the lower end of the rotation axis 31 of rotary fluted disc fit in tensioning sliding slot, and setting compresses rotary fluted disc in tensioning sliding slot
The tensioning pressure spring 5 of rotation axis, the one end for being tensioned pressure spring compress the end of tensioning sliding slot, and the other end for being tensioned sliding slot compresses rotation axis
Side, be snug against drive rack to make to be tensioned pressure spring driving rotary fluted disc, effectively eliminate rotary fluted disc and sliding tooth
Back lash between item is conducive to improve measurement accuracy.
In order to improve the accuracy of manufacture of rotary fluted disc, rotary fluted disc includes a circular rotating disk body 32, in rotating disc
The U-shaped groove 321 of annular is set on the periphery of body, to form the baffle ring radially extended at the lower edges of rotating disk body
33.In addition, several threaded holes 331 downward through lower baffle ring are arranged on upper baffle ring, threaded hole is equal in the circumferential direction of rotating disk body
Even distribution, and setting pin shaft 34 at threaded hole is corresponded between upper lower baffle ring.Cone is respectively set in the upper and lower ends of pin shaft
Location hole 341 connects positioning screw 35 straight down, the spiral shell in the threaded hole of lower baffle ring in the threaded hole internal screw thread of upper baffle ring
The positioning screw of line connection straight up, the axially extending formation in inner end of the positioning screw between upper lower baffle ring fit in pin shaft
The positioning head 351 of the positioning hole of corresponding one end is advantageously implemented pin shaft so that pin shaft and threaded hole be made to realize automatic centering
Positioning accuracy.When measurement bracket moves left and right, the pin shaft on rotary fluted disc is sequentially entered in the tooth socket of drive rack, to make
Drive rack and rotary fluted disc, which are formed, to be intermeshed.That is, pin shaft at this time plays the role of one " tooth ".
Further, as shown in Figure 3, Figure 4, preceding calibration hole 24 can be arranged on the top of measurement bracket leading flank in we, should
Preceding calibration hole is to constitute the measuring basis, while one piece of vertical calibration plate 6, calibration plate is arranged at the rear of measurement bracket
Leading flank become and the parallel alignment surface 61 of measurement bracket leading flank.In addition, setting and preceding calibration hole are same in alignment surface
The rear calibration hole 62 of axis, certainly, the axis of forward and backward calibration hole should be perpendicular to the leading flank of measurement bracket.And measuring instrument then uses
Laser emitter.As such, it is desirable to which we can first be issued with laser emitter towards stationary target instrument when measuring the micro-shifting of measurement point
Laser beam, laser beam at this time constitute visual collimation line.Then movable target instrument is placed, and moves left and right measurement branch
Frame, calibration hole before being directed at laser beam；Then pass through the levelness of regulating mechanism adjustment base, until laser beam is worn simultaneously
It crosses forward and backward calibration hole and is irradiated on stationary target instrument, it was demonstrated that the axis of forward and backward calibration hole, which is located at, at this time laser beam composition
Collimation line on, measure bracket and collimation line it is perpendicular, so as to the measurement being accurately displaced.Reference graduation institute is right at this time
The metering scale value answered is current displacement measurement.
Claims (5)
1. a kind of movable target instrument convenient to use, including can be fixed in the installation pedestal of measurement point pedestal, shifting can be controlled
The measurement bracket being set on the base dynamicly, the measurement point position in stationary target instrument and be arranged in observation point measuring instrument it
Between, it is equipped with measuring basis in the leading flank of measurement bracket, is equipped with the regulating mechanism of adjustable frames levelness in the bottom of pedestal,
It is characterized in that it is respectively provided with metering scale of the measurement bracket with respect to the shift value of pedestal in the front side of pedestal, rear side,
Reference graduation is equipped with close to metering scale position in measurement frame bottom.
2. a kind of movable target instrument convenient to use according to claim 1, characterized in that the pedestal is equipped with level
Sliding groove, the basal sliding for measuring bracket is connected in sliding groove, and being located to be equipped at sliding groove side on pedestal can be rotated
Rotary fluted disc, dial disc is fixedly connected on the downside of rotary fluted disc, the bottom sides for measuring bracket are equipped with and turning gear
The drive rack that disk is meshed is respectively equipped with metering scale at the front side, left side and right side edge of dial disc, in pedestal
Before being equipped with, left and right 3 reference graduations corresponding with metering scale.
3. a kind of movable target instrument convenient to use according to claim 1, characterized in that on pedestal be equipped with perpendicular to
The tensioning sliding slot of bracket leading flank is measured, the lower end of the rotation axis of the rotary fluted disc fits in tensioning sliding slot, is tensioned sliding slot
Interior to be equipped with the tensioning pressure spring for compressing rotary fluted disc rotation axis, tensioning pressure spring driving rotary fluted disc is snug against drive rack.
4. a kind of movable target instrument convenient to use according to claim 1, characterized in that the rotary fluted disc includes one
A circular rotating disk body is equipped with the U-shaped groove of annular on the periphery of rotating disk body, thus in the upper following of rotating disk body
The baffle ring radially extended is formed at edge, several threaded holes through lower baffle ring are equipped on upper baffle ring, and the threaded hole is rotating
It is uniformly distributed in the circumferential direction of disk body, is corresponded between upper lower baffle ring and be equipped with pin shaft at threaded hole, the upper and lower ends point of the pin shaft
She You cone location hole, be threaded with positioning screw, positioning screw position respectively in the threaded hole of the upper lower baffle ring
The axially extending formation in inner end between upper lower baffle ring fits in the positioning head of positioning hole, when measurement bracket moves left and right,
Pin shaft on rotary fluted disc sequentially enters in the tooth socket of drive rack, mutually nibbles so that drive rack be made to be formed with rotary fluted disc
It closes.
5. a kind of movable target instrument convenient to use according to claim 1 or 2 or 3 or 4, characterized in that in measurement branch
The top of frame leading flank is equipped with preceding calibration hole, and the preceding calibration hole is to constitute the measuring basis, at the rear of measurement bracket
Equipped with the alignment surface parallel with measurement bracket leading flank, the rear calibration hole coaxial with preceding calibration hole is equipped in alignment surface, it is described
Measuring instrument is laser emitter, when measuring the micro-shifting of measurement point, first issues laser towards stationary target instrument with laser emitter
Then light beam moves left and right measurement bracket, then calibration hole before being directed at laser beam passes through the water of regulating mechanism adjustment base
Pingdu, until laser beam also cross forward and backward calibration hole and is irradiated on stationary target instrument, at this time corresponding to reference graduation
Metering scale value is current displacement measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385144.8A CN109458996B (en) | 2018-11-20 | 2018-11-20 | Movable target instrument convenient to use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385144.8A CN109458996B (en) | 2018-11-20 | 2018-11-20 | Movable target instrument convenient to use |
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| Publication Number | Publication Date |
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| CN109458996A true CN109458996A (en) | 2019-03-12 |
| CN109458996B CN109458996B (en) | 2024-03-26 |
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| CN201811385144.8A Active CN109458996B (en) | 2018-11-20 | 2018-11-20 | Movable target instrument convenient to use |
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| CN105758391A (en) * | 2016-04-12 | 2016-07-13 | 浙江工业职业技术学院 | Apparatus for determining 50cm wire used in building construction and using method thereof |
| CN108680150A (en) * | 2018-07-19 | 2018-10-19 | 内蒙古工业大学 | A kind of hand-held construction account equipment fixation holder |
| CN209279974U (en) * | 2018-11-20 | 2019-08-20 | 国网浙江省电力有限公司紧水滩水力发电厂 | A kind of movable target instrument convenient to use |
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