CN207036052U - Digital display week footpath π chi - Google Patents
Digital display week footpath π chi Download PDFInfo
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- CN207036052U CN207036052U CN201720759589.2U CN201720759589U CN207036052U CN 207036052 U CN207036052 U CN 207036052U CN 201720759589 U CN201720759589 U CN 201720759589U CN 207036052 U CN207036052 U CN 207036052U
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- digital display
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- chi
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Abstract
Digital display week footpath π chi, including soft main scale and secondary ruler, one end is provided with zero point limit point on main scale, and starting limit point is provided with secondary ruler；Cunning is inserted with the vernier with digital display window in secondary ruler, fixed grid is provided with secondary ruler blade, fixed grid is included in the thread sky grid of equidistant arrangement on blade；The measuring jaw being engaged with zero point limit point is provided with below the vernier, it is interior to be provided with the moving grid corresponding with fixed grid, the sensor for determining moving grid and fixed grid relative position and power supply, signal processing module and the display module being connected with sensor, digital display window and power switch are provided with outside vernier.The utility model adds digital display module, realizes the function of digital display, not only can quick reading numerical values, while greatly avoid subjective error of the existing all footpath chis in reading process.The tape body of flexible any radian, how long blade, which can all be coiled, when carrying or taking care of is placed in box, extremely convenient.
Description
Technical field
The utility model belongs to dimensional measuring instrument technical field, specifically a kind of digital display week footpath π chis, for measuring
The circle average diameter of object workpiece and all footpath chis of girth.
Background technology
In the industrial production, slide measure is mainly used in the straight length measurement of object, for example, workpiece diameter or external diameter
Straight length measures；In addition, the blade of slide measure is generally the hard blade of inflexibility, not readily portable and keeping.When need
When carrying out the measurement of the lengths of curve such as workpiece arc length, it can not be realized by the slide measure with hard blade.
Prior art such as discloses a kind of all footpath chis in the utility model of Patent No. 200520092574.2, also referred to as
Chi is sent in all footpath π chis or all footpaths, and it can easily measure the circle average diameter of object workpiece and all footpath chis of girth.But should
All footpath chis disclosed in patent use artificial reading, error be present.And simultaneously because existing all footpath chi blades are relatively thin, therefore
Digital display function can not be realized in existing all footpath chis with the module of general slide measure.
Utility model content
The purpose of this utility model is to provide a kind of footpath π of digital display week chi, solves the problems of the prior art.
The utility model adopts the following technical scheme that：Digital display week footpath π chi, including soft main scale and secondary ruler, one on main scale
End is provided with zero point limit point, and starting limit point is provided with secondary ruler；Cunning is inserted with the vernier with digital display window in secondary ruler, in pair
Chi blade is provided with fixed grid, and fixed grid is included in the thread sky grid of equidistant arrangement on blade；It is provided with below the vernier and is limited with zero point
The measuring jaw that site is engaged, it is interior to be provided with the moving grid corresponding with fixed grid, the sensor for determining moving grid and fixed grid relative position
And power supply, signal processing module and the display module being connected with sensor, digital display window and power supply are provided with outside vernier
Switch.
Further：The sensor is photoelectric sensor, including be arranged on fixed grid and moving grid both sides light source and with light
Photoelectric cell corresponding to source.
Further：The sensor is capacitance sensor, including produces the crystal oscillator and receiving pole of clock signal.
Further：With being alignd on the left of vernier on the inside of the measuring claw.
Further：Diameter and arc length shift key are provided with vernier.
The beneficial effects of the utility model are：The advantages of remaining existing all footpath chis, adds digital display module, realizes number
Aobvious function, not only can quick reading numerical values, while greatly avoid subjectivity of the existing all footpath chis in reading process
Error.The tape body of flexible any radian, how long blade, which can all be coiled, when carrying or taking care of is placed in box, extremely just
Profit；The utility model structure has in light weight, small volume, easy to operate, low cost and other advantages simultaneously.In addition, the utility model
Also there is the advantages of accurate positioning, easy to use.
Brief description of the drawings
Fig. 1 is structure schematic diagram of the present utility model；
Fig. 2 is the internal structure schematic diagram of vernier；
Fig. 3 is the connection relationship diagram of module.
Number explanation in figure：1. soft main scale, 101 zero point limit points, 2. verniers, 3. secondary rulers, 301 starting limit points, 4.
Measuring jaw, 5. fixed grids, 6. moving grids, 7. sensors, 71. light sources, 72. photoelectric cells, 8. power supplys, 9. signal processing modules,
10. display module, 11. digital display windows, 12. power switches, 13. shift keys.
Embodiment
Embodiment 1：It is as Figure 1-3 the utility model structure digital display week footpath π chis, including soft main scale 1 and secondary ruler 3,
One end is provided with zero point limit point 101 on main scale, and it can be welded to the limited block on soft main scale；Starting limit is provided with secondary ruler
Site 301, it may also be referred to as the second zero point；Cunning is inserted with the vernier 2 with digital display window 11 in secondary ruler, is set on secondary ruler blade
There is fixed grid 5, fixed grid is included in the thread sky grid of equidistant arrangement on blade；It is provided with below the vernier and is engaged with zero point limit point
Measuring jaw 4, be provided with vernier the moving grid 6 corresponding with fixed grid, the sensor 7 for determining moving grid and fixed grid relative position and
Power supply 8, signal processing module 9 and the display module 10 being connected with sensor, digital display window 11 and electricity are provided with outside vernier
Source switch 12；Wherein signal processing module, the model of display module and digital display window and processing to signal etc. accordingly with
Existing electronic digital indicator is identical.
Preferably：The sensor is photoelectric sensor, including be arranged on fixed grid and moving grid both sides light source 71 and with light
Photoelectric cell 72 corresponding to source.
Preferably：The sensor is capacitance sensor, including produces the crystal oscillator and receiving pole of clock signal, and crystal oscillator is suitable
In the light source for producing signal, receiving pole is equivalent to the photosensitive electric device for receiving signal.
Preferably：The inner side of measuring claw 4 on the left of vernier with aliging, and point-blank, such vernier can also be treated as
A part for measuring jaw, plays a part of positioning.
Preferably, according to different requirements, in order to measure conveniently, described zero point limit point can also be and vernier
On the corresponding fixation measuring jaw of the measuring jaw that can be slided.
The measuring principle of the present embodiment is as follows, and in the present embodiment, the spacing between the raster width and grid of fixed grid is identical,
Spacing between the raster width and grid of moving grid is also identical, but the difference of the raster width of moving grid and fixed grid, usually fixed grid
0.9 times of width, the quantity of the grid of fixed grid are no less than 10, so, when fixed grid and moving grid generation relative motion, grid
Position produces relative motion, and then makes to produce different change through the light of grid, and photo-sensitive cell then receive these change into
And corresponding signal input signal processing module is produced so as to draw the data of corresponding displacement, i.e. gained.
Embodiment 2：It is with the difference of embodiment 1, the sensor is capacitance sensor, including produces clock signal
Crystal oscillator and receiving pole.
Illustrate specific measurement process so that measurement range is 500-750mm chi as an example below., will from box before measurement
Chi takes out, and the tape of coiling recovers linear state in the presence of its own resilient, wipes clean each position with soft cloth, will measure
Pawl is moved to main scale direction, it is close to starting limit point, and starting limit point is located at 500mm, is turned on the power and is returned to zero i.e.
It can start to measure, eliminate hand reset or keep the trouble of zero error in mind.When measuring round piece diameter or girth, by whole chi
Body is wound on outside workpiece, and is brought into close contact with workpiece, is slided vernier, measuring claw is alignd with zero point limit point, from digital display window
Reading, along with the 500mm where starting limit point is surveyed diameter.
Preferably：Diameter and girth shift key are provided with vernier, the shift key is connected with signal processing module, will can surveyed
The data obtained export after being multiplied by pi, as corresponding girth numerical value.
Preferably：In zeroing, digital display window initial value is the numerical value corresponding to initial limit point after digital display zeroing, such as
500mm, measurement result can be intuitively shown, eliminate the trouble of calculating.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (5)
1. digital display week footpath π chi, including soft main scale and secondary ruler, it is characterised in that：One end is provided with zero point limit point on main scale, in pair
Chi is provided with starting limit point；Cunning is inserted with the vernier with digital display window in secondary ruler, and fixed grid, fixed grid are provided with secondary ruler blade
It is included in the thread sky grid of equidistant arrangement on blade；The measuring jaw being engaged with zero point limit point is provided with below the vernier, is inside set
There are the moving grid corresponding with fixed grid, the sensor for determining moving grid and fixed grid relative position and the electricity being connected with sensor
Source, signal processing module and display module, digital display window and power switch are provided with outside vernier.
2. digital display week according to claim 1 footpath π chi, it is characterised in that：The sensor is photoelectric sensor, including is set
Put the light source in fixed grid and moving grid both sides and photoelectric cell corresponding with light source.
3. digital display week according to claim 1 footpath π chi, it is characterised in that：The sensor is capacitance sensor, including production
The crystal oscillator and receiving pole of generating clock signal.
4. digital display week according to claim 1 footpath π chi, it is characterised in that：With being alignd on the left of vernier on the inside of the measuring jaw.
5. digital display week according to claim 1 footpath π chi, it is characterised in that：Diameter and arc length shift key are provided with vernier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759589.2U CN207036052U (en) | 2017-06-28 | 2017-06-28 | Digital display week footpath π chi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759589.2U CN207036052U (en) | 2017-06-28 | 2017-06-28 | Digital display week footpath π chi |
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| Publication Number | Publication Date |
|---|---|
| CN207036052U true CN207036052U (en) | 2018-02-23 |
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|---|---|---|---|
| CN201720759589.2U Active CN207036052U (en) | 2017-06-28 | 2017-06-28 | Digital display week footpath π chi |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595239A (en) * | 2020-12-11 | 2021-04-02 | 中车长春轨道客车股份有限公司 | Positioning system for automatic coating operation of railway vehicle |
| CN114018132A (en) * | 2021-10-25 | 2022-02-08 | 北京交通大学 | Digital display radian measuring device |
-
2017
- 2017-06-28 CN CN201720759589.2U patent/CN207036052U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595239A (en) * | 2020-12-11 | 2021-04-02 | 中车长春轨道客车股份有限公司 | Positioning system for automatic coating operation of railway vehicle |
| CN114018132A (en) * | 2021-10-25 | 2022-02-08 | 北京交通大学 | Digital display radian measuring device |
| CN114018132B (en) * | 2021-10-25 | 2023-08-25 | 北京交通大学 | Digital display radian measuring device |
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