CN201285277Y

CN201285277Y - Electronic digital display fastening type angle protractor

Info

Publication number: CN201285277Y
Application number: CNU2008201414517U
Authority: CN
Inventors: 冉启忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-08-05
Anticipated expiration: 2018-11-17
Also published as: DE102009052806B4; DE202009018894U1; DE102009052806A1

Abstract

The utility model provides an electronic digital-display tightening protractor which comprises a bow ruler, a straight ruler, an electronic capacitive grating digital-display component, a fixed shaft and a shaft sleeve, wherein the electronic capacitive grating digital-display component is provided with a movable grating, a fixed grating, an electronic chip with signal processing and unit conversion functions, a display screen and a cover casing, the first end of the fixed shaft is fixed on the bow ruler, and the shaft sleeve is sleeved on the fixed shaft and leaves a gap from the fixed shaft; one end of the straight ruler is fixed on the shaft sleeve, and the movable grating, the fixed grating, a look nut and the cover casing are sequentially mounted on the shaft sleeve; the movable grating is fixed on the shaft sleeve in a gap matched with the fixed grating which is fixed on the bow ruler by the cover casing, and a locking nut is in threaded connection with the second end of the fixed shaft. The utility model can display the angle change between the bow ruler and the straight ruler on the display screen in a digital mode, has direct reading and precise measurement, can lock the relative angles of the straight ruler and the bow ruler and stabilizes the display value.

Description

Electronic digital display fastening-type protractor

Technical field:

The utility model is relevant with the measurement mechanism that takes measurement of an angle, and is special relevant with electronic digital display fastening-type protractor.

Background technology:

Present employed fastening-type protractor is to represent measurement data in the mode of pointer indicating graduation, and reading is not directly perceived, has also influenced the accuracy of measurement data when reading owing to people's the collimation error.

The utility model content:

The purpose of this utility model is in order to overcome above-mentioned deficiency, provides a kind of and shows the value of taking measurement of an angle with digital form, and reading is directly perceived, measures electronic digital display fastening-type protractor accurately.After the locking, indicating value can not change.

The purpose of this utility model is achieved like this:

The utility model electronic digital display fastening-type protractor, comprise the bow chi, ruler, drive grid, fixed grid, electronic chip with signal Processing and unit conversion functions, display screen, the electronics capacitive grid numeral display assembly of case, first end is fixed on the stationary shaft on the bow chi, be enclosed within on the stationary shaft and the axle sleeve of clearance fit with it, one end of ruler is fixed on the axle sleeve, moving grid, fixed grid, look nut, case is contained on the axle sleeve successively and moving grid is fixed on the axle sleeve and fixed grid and axle sleeve clearance fit, case is fixed on fixed grid on the bow chi, clamp nut is threaded with second end of stationary shaft, and electronics capacitive grid numeral display assembly is bought on market.

Have between above-mentioned moving grid and fixed grid and be enclosed within on the axle sleeve and the pad of clearance fit with it, have between fixed grid and look nut be enclosed within on the axle sleeve and with it gap axis to the butterfly shell fragment that cooperates, look nut, pad, butterfly shell fragment are maintained fixed moving grid and fixed grid in relatively rotating end play, the influence that makes measured value not changed by the gap.

Stretch out outside the look nut on above-mentioned axle sleeve top, there is anti-transfer part at the second end screw thread place of stretching out axle sleeve on the stationary shaft, be positioned at the anti-rotation bullet pad that is contained on the stationary shaft and cooperates with anti-transfer part on the stationary shaft is arranged between clamp nut lower surface and axle sleeve top end face, nut is tightened, can make the locking of stationary shaft and axle sleeve, ruler, can immobilize with the angle of bending between chi.

Be equipped with on the above-mentioned case and the corresponding unit of electronic chip conversion keys, switch and zero clearing button.

In the utility model, ruler and moving grid are fixed on the axle sleeve, and ruler rotates then moving grid and also rotation thereupon of axle sleeve, and pad, fixed grid and butterfly shell fragment and axle sleeve are clearance fit, and fixed grid is fixed on the bow chi by case, and fixed grid can not rotate with axle sleeve.Ruler rotates with respect to the bow chi around stationary shaft, thereby moving grid and fixed grid are relatively rotated, and the angle numeral of rotation is handled and demonstrated to the electric signal of variation on display screen by electronic chip.When needing the angle of fixation measuring, clamp nut is screwed, stop axle sleeve thereby the clamp nut that screws only increases the friction force of the anti-rotation bullet pad that is engaged on the stationary shaft and axle sleeve end face and be fixed on ruler on the axle sleeve and moving grid rotates the end play that does not change between moving grid and fixed grid that indicating value is stablized is constant, use unit conversion keys on the case can realize the conversion of " decimal system " unit and " degree every minute and second " unit, but switch and zero clearing button zero clearing and Switching Power Supply at an arbitrary position.Can export measurement data to computing machine by FPDP.

The utility model shows the result who measures with digital mode.Reading is directly perceived, measure accurately, can easily carry out the conversion of " decimal system " unit and " degree every minute and second " unit, can export measured data to computing machine so that manage, the utility model can lock ruler and the relative angle that bends chi, and keeping indicating value constant, the utility model is simple in structure.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 separates synoptic diagram for the utility model structure.

Fig. 3 is bow chi and stationary shaft scheme of installation.

Fig. 4 be axle sleeve and on the part scheme of installation.

Fig. 5 is axle sleeve and goes up part and separate synoptic diagram.

Fig. 6 is an axle sleeve and the synoptic diagram that cooperates of stationary shaft.

Fig. 7 is the installation site synoptic diagram of case.

Fig. 8 is the fastening synoptic diagram of case.

Fig. 9 is anti-rotation bullet pad and clamp nut and stationary shaft scheme of installation.

Embodiment:

Referring to Fig. 1, Fig. 2, the utility model electronic digital display fastening-type protractor, comprise bow chi 1, ruler 2, the electronics capacitive grid numeral display assembly 8 of the drive grid 3 of outsourcing, fixed grid 4, electronic chip 5, display screen 6, case 7 with signal Processing and unit conversion functions, first end is riveted on the bow chi and there is the stationary shaft 9 of anti-transfer part 20 at the second end screw thread place, is enclosed within on the stationary shaft and gapped with it axle sleeve 10 axle sleeve tops are threaded.One end of ruler is fixed on the axle sleeve.Moving grid, pad 11, fixed grid, case, 12 two look nuts 13 of butterfly shell fragment are contained on the axle sleeve successively and moving grid is fixed on the axle sleeve and pad, fixed grid, butterfly shell fragment and shaft room are respectively clearance fit.By four screw 14 cases fixed grid is fixed on the bow chi.Anti-rotation bullet pad 15 is contained on the stationary shaft and cooperates with anti-transfer part on the stationary shaft and the lower surface places on the axle sleeve end face, and clamp nut 16 is threaded with second end of stationary shaft.

Be equipped with on the case and the corresponding unit of electronic chip conversion keys 17, switch and zero clearing button 18, dustproof sheet 19 is arranged above the case face.

During assembling, as shown in Figure 3, stationary shaft first end is riveted on the bow rod support,

As Fig. 4, shown in Figure 5, ruler, moving grid, pad, fixed grid, butterfly shell fragment and two look nuts are installed on the axle sleeve successively, wherein, ruler and moving grid are fixed on the axle sleeve, and pad, fixed grid, butterfly shell fragment and axle sleeve are respectively clearance fit.Regulate first look nut of contact butterfly shell fragment, make the tensioning of butterfly shell fragment appropriateness, the thickness of pad has determined the end play of moving grid and fixed grid, and the butterfly shell fragment makes this gap keep stable.Tighten another look nut again, effect is to guarantee that first look nut can not become flexible.Shown in Figure 6, be axle sleeve and the synoptic diagram that cooperates of stationary shaft.Axle sleeve and stationary shaft clearance fit are rotated flexibly.As shown in Figure 7, case is installed in bow chi front, at the relevant position unit of loading onto shift key, zero clearing and on ﹠ off switch and dustproof sheet.As shown in Figure 8, with four screws case and bow chi are fixed, fixed grid also is fixed in the case simultaneously.As shown in Figure 9, anti-rotation bullet pad cooperated be installed on the anti-transfer part of the stationary shaft that stretches out the axle sleeve end face, again being threaded with clamp nut and stationary shaft.Finish whole installations.

Ruler opposing arch chi rotates in the measuring process, and the moving grid, the axle sleeve that are fixed together with ruler rotate thereupon, and fixed grid and axle sleeve are clearance fit and are fixed on the bow chi, can not rotate.The angle numeral of rotation is handled and demonstrated to the electric signal that moving grid and fixed grid relatively rotate generation on display screen by electronic chip.And the fixing end play between moving grid that structure guaranteed and fixed grid, the influence that makes the indicating value of measurement not changed by the gap.If necessary, screw clamp nut, the nut that screws only increases the friction force that is matched with anti-rotation bullet pad and axle sleeve end face on the stationary shaft, thereby stops axle sleeve and the ruler and the moving grid that are fixed on the axle sleeve rotate, but do not change the end play between moving grid and the fixed grid, and it is constant that indicating value is stablized.

When using the utility model, rotate ruler earlier, make ruler parallel with the straight flange of bow chi, press switch and zero clearing button, show zero clearing on the display screen, and then rotate ruler, measure the angle of workpiece for measurement, what showed on the display screen this moment is the value of workpiece angle.If need the conversion of " decimal system " unit He " degree every minute and second " unit of angle, can be by the unit shift key.Screw clamp nut the ruler and the relative angle of bow chi are locked, and indicating value remains unchanged.

Claims

1, electronic digital display fastening-type protractor, it is characterized in that comprising the bow chi, ruler, drive grid, fixed grid, electronic chip with signal Processing and unit conversion functions, display screen, the electronics capacitive grid numeral display assembly of case, first end is fixed on the stationary shaft on the bow chi, be enclosed within on the stationary shaft and gapped with it axle sleeve, one end of ruler is fixed on the axle sleeve, moving grid, fixed grid, look nut, case is contained on the axle sleeve successively and moving grid is fixed on the axle sleeve and fixed grid and axle sleeve clearance fit, case is fixed on fixed grid on the bow chi, and clamp nut is threaded with second end of stationary shaft.

2, electronic digital display fastening-type protractor as claimed in claim 1 is characterized in that having between moving grid and fixed grid being enclosed within on the axle sleeve pad of clearance fit with it, has between fixed grid and look nut to be enclosed within on the axle sleeve and the butterfly shell fragment of clearance fit with it.

3, electronic digital display fastening-type protractor as claimed in claim 1 or 2, it is characterized in that the axle sleeve top stretches out outside the look nut, there is anti-transfer part at the second end screw thread place of stretching out axle sleeve on the stationary shaft, and being positioned at has the anti-rotation bullet pad that is contained on the stationary shaft and cooperates with anti-transfer part on the stationary shaft between clamp nut lower surface and axle sleeve top end face.

4, electronic digital display fastening-type protractor as claimed in claim 1 or 2 is characterized in that being equipped with on the case and the corresponding unit of electronic chip conversion keys, switch and zero clearing button.

5, electronic digital display fastening-type protractor as claimed in claim 3 is characterized in that being equipped with on the case and the corresponding unit of electronic chip conversion keys, switch and zero clearing button.