CN201653356U

CN201653356U - Adjustable angle protractor of electronic digital display

Info

Publication number: CN201653356U
Application number: CN201020179485.2U
Authority: CN
Inventors: 冉启忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-05
Filing date: 2010-05-05
Publication date: 2010-11-24
Anticipated expiration: 2020-05-05
Also published as: DE102011000065A1

Abstract

The utility model relates to an adjustable angle protractor of an electronic digital display, comprising a central hole, an arch scale of a circular arc groove of at least 180 degrees with the central hole as the center, a straight ruler with a chute, an electronic chip which comprises a movable grating and a fixed grating and has the functions of signal processing and data holding, a display screen and an electronic grating digital display component of a cover casing. The first end of a first rotating table is provided with a first sliding block matched with the chute on the straight ruler, and the second end thereof is in threaded connection with one end of a fastening column and is mounted on the arch scale by penetrating out of the central hole on the arch scale; the first end of a second rotating table is provided with a second sliding block matched with the chute on the straight ruler, and the second end thereof penetrates out of the circular arc of the arch scale and is connected with a fastening nut through a lead screw; and the movable grating is fixed on the fastening column, and the cover casing fixes the fixed grating on the arch scale. The adjustable angel protractor digitally displays the measured angle value so as to have direct value reading and accurate displayed value, and can measure angles of 0-180 degrees, has larger measurement range, has more flexible measurement due to the adjustable contacting length of the straight ruler with a workpiece, and has no displayed value change after being locked.

Description

The adjustable protractor of electronic digital display

Technical field:

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

Background technology:

Employed adjustable protractor is to represent measurement data in the mode of pointer indicating graduation at present, and reading is not directly perceived.When reading, also influenced the accuracy of measurement data owing to people's the collimation error.And generally can only measure 10 ° of-170 ° of angular ranges.

The utility model content:

The purpose of this utility model is in order to overcome above-mentioned deficiency, provide a kind of and show the value of taking measurement of an angle with digital form, reading is directly perceived, indicating value is accurate, 0 ° of-180 ° of angle of energy measurement, measurement range is bigger, and the adjustable in length that ruler contacts with workpiece, measure more flexible, the adjustable protractor of electronic digital display that locking back indicating value can not change.

The purpose of this utility model is achieved like this:

The adjustable protractor of the utility model electronic digital display, include center pit and be the bow chi that is at least 180 ° of arc grooves at center with the center pit, the ruler of band chute, contain moving grid, fixed grid, electronic chip with signal Processing and data maintenance function, display screen, the electronics capacitive grid numeral display assembly of case, have on first end of first turntable with ruler on first slide block that cooperates of chute and second end pass on the bow chi center pit with tighten up the post threaded one end and be connected and be contained in and bend on the chi, have on second turntable, first end with ruler on second slide block that cooperates of chute and second end passes bow chi arc groove and be connected with clamp nut by screw mandrel, moving grid is fixed on and tightens up on the post, and case is fixed on fixed grid on the bow chi.Electronics capacitive grid numeral display assembly can have been bought on market.

Above-mentioned tightening up has intermediate disc on the post, by several screws moving grid is fixed on the intermediate disc, and intermediate disc thickness can determine to move, the end play between fixed grid.

Anti-rotation pad, the stage clip that is contained on the screw mandrel arranged between above-mentioned bow chi and clamp nut, screw clamp nut, increased the anti-rotation pad and stoped ruler and bend relatively rotating of chi, thereby realize tightening up the effect of bow chi and ruler with the friction force on bow chi surface.

Chute on the above-mentioned ruler is shaped as dovetail groove, first slide block, the second slide block shape on first turntable, second turntable, first end are respectively the dovetail that cooperates with dovetail groove, and second end of first turntable, second turntable is the circular shaft with internal thread that cooperates with bow chi center pit, arc groove respectively.

Be equipped with on the above-mentioned case with the corresponding on ﹠ off switch of electronic chip, zero clearing button and data and keep button.

In the utility model, moving grid interconnects by tightening up post, first turntable and ruler, ruler drives first turntable and rotates around bow chi center pit, moving grid on it is done corresponding rotation thereupon, case is fixed on fixed grid on the bow chi, angle variation between ruler and the bow chi is converted into relatively rotating between moving grid and the fixed grid, and the angle numeral of rotation is handled and demonstrated to the electric signal of generation on display screen by electronic chip.Ruler can change the contact length of ruler amount face and measured workpiece moving up and down with respect to the slip of bow chi by first turntable and second turntable, reaches flexible, adjustable purpose.When rotating, ruler drives the moving grid rotation, fixed grid is fixed on the bow chi together with case, the bow chi fix because of the height of the second end circular shaft of first turntable again and with bend chi thickness and tie in, make the bow chi be limited in ruler and tighten up intercolumniation and turn, axial no play, therefore moving grid and fixed grid end play are constant, and indicating value is stable.When needing the angle of fixation measuring, screw clamp nut, the clamp nut that screws only increases the friction force that is engaged in bow chi upper surface and contacted with it anti-rotation pad lower surface, clamp nut, screw mandrel etc. are away from center of rotation, lock more stablely, can't change the end play of moving grid and fixed grid.But use the on ﹠ off switch Switching Power Supply on the case, reset key is zero clearing at an arbitrary position, and data keep key can keep the indicating value measured constant.Also can export measurement data to computing machine by FPDP.

The utility model shows the result who measures with digital mode, and reading is directly perceived, measures accurately, can realize the maintenance of data, can export measured data to computing machine so that manage.The utility model can be regulated the length that ruler amount face contacts with measured workpiece as required, and measured of measured workpiece is fully contacted with ruler amount face with bow dipstick metering face, better guarantees the needs of different measuring environment.Also can lock ruler and the relative angle that bends chi, and keep 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 ruler scheme of installation.

Fig. 4 bends that part separates signal on chi and the ruler.

Fig. 5 is the installation site synoptic diagram of case.

Fig. 6 is the fastening synoptic diagram of case.

Fig. 7 tightens up the anti-rotation synoptic diagram mutually for bending chi and ruler.

Embodiment:

Referring to Fig. 1, Fig. 2.The adjustable protractor of the utility model electronic digital display, include center pit 1-1 and with the center pit be 180 ° of arc groove 1-2 at center bow chi 1, have dovetail groove 2-1 ruler 2, contain moving grid 18, fixed grid 17, have the electronics capacitive grid numeral display assembly of outsourcing that signal Processing and data keep electronic chip 16, display screen 15, the case 14 of function.At first first turntable, 3 first ends, the first dovetail slide block 3-1 is contained in the dovetail groove of ruler and its second end band internal thread circular shaft is packed into and cooperated with center pit in the bow chi center pit.Tighten up on the post 19 intermediate disc 19-1 and load onto the upper surface moving grid 18 and fixing earlier, tighten up post lower end screw rod and screw in the second end circular shaft internal thread of first turntable 3 and tighten with screw 20.Second turntable, 5 first ends, the second dovetail slide block 5-1 is contained in the ruler dovetail groove, its second end band internal thread circular shaft is contained in the arc groove of bow chi and cooperates with it, screw mandrel 6 is screwed in second turntable, the 5 circular shaft internal threads again and tightens up and load onto anti-rotation pad 7, stage clip 8 and clamp nut 9 on it successively.

Tighten up post 19 upper end cylinders and pass fixed grid and case, and case 14 is fixed on the bow chi by four clamp-screws 4.Fixed grid 17, electronic chip 16, display screen 15 are housed in the case 14.Corresponding on ﹠ off switch 10, reset key 11, data keep key 12, dustproof sheet 13 to be contained on the case.

As shown in Figure 3, Figure 4, during assembling, at first first turntable, 3 first ends, the first dovetail slide block is contained in the ruler dovetail groove, second end of its band internal thread circular shaft is contained in the bow chi center pit and is slidingly matched, again second turntable, 5 first ends, the second dovetail slide block also is contained in the ruler dovetail groove, bow chi and ruler are linked together by first turntable 3, second turntable 5, and limit the upper and lower gap of bow chi by the height of first turntable, the second end circular shaft, make the bow chi can freely rotate after tightening, but can't about play and played position-limiting action.Tighten up on the other hand after post is fixed on the turntable, moving grid also rotates with ruler under the drive of first turntable on it.

As Fig. 5, shown in Figure 6, with four screws 4 case and bow chi are fixed, fixed grid also is fixed in the case simultaneously.As shown in Figure 7, ruler rotates along bow chi arc grooves by second turntable 5, can do 0 °-180 ° and move with respect to the rotation of bow chi straight flange, and ruler also can move by dovetail groove.Screw mandrel on second turntable 5 is joined anti-rotation pad, stage clip, and clamp nut is connected with wire rod thread, can make bow chi and ruler play the effect of tightening up at any relative position.

Ruler opposing arch chi rotates in the measuring process, and first turntable that is fixed together with ruler rotates thereupon, and the moving grid on first turntable also will be driven together and rotate at this moment.Fixed grid is fixed on the bow chi, so moving grid and fixed grid relatively rotate, the angle numeral of rotation is handled and demonstrated to the electric signal of generation on display screen by electronic chip.And the fixing end play between moving grid that structure guarantees and fixed grid, the influence that makes the indicating value of measurement not changed by the gap.If when needing the measured value of a certain angle, screw clamp nut, bow dipstick metering face is maintained static with this relative angle of ruler amount face, make moving grid stall this moment with the ruler stall thereby reach, 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 0 ° on the display screen, and then rotate ruler, measure the angle of workpiece for measurement, what showed on the display screen this moment is workpiece actual angle value.If with the calibrated bolck of known angle to zero, but then measuring workpieces with respect to the error of calibrated bolck angle.If need a certain angle value to remain unchanged, can screw clamp nut the ruler and the relative angle of bow chi are locked, and indicating value remains unchanged, and when this angle value of needs retains, also can be constant by keeping key to keep.

Claims

1. the adjustable protractor of electronic digital display, it is characterized in that including center pit and be the bow chi (1) that is at least 180 ° of arc grooves at center with the center pit, the ruler (2) of band chute, contain moving grid (18), fixed grid (17), electronic chip (16) with signal Processing and data maintenance function, display screen (15), the electronics capacitive grid numeral display assembly of case (14), have on first end of first turntable (3) with ruler on first slide block that cooperates of chute and second end pass on the bow chi center pit with tighten up post (19) threaded one end and be connected and be contained in and bend on the chi, have on second turntable (5) first ends with ruler on second slide block that cooperates of chute and second end passes bow chi arc groove and be connected with clamp nut (9) by screw mandrel (6), moving grid is fixed on and tightens up on the post, and case is fixed on fixed grid on the bow chi.

2. the adjustable protractor of electronic digital display as claimed in claim 1 is characterized in that tightening up intermediate disc (19-1) is arranged on the post, by several screws moving grid is fixed on the intermediate disc.

3. the adjustable protractor of electronic digital display as claimed in claim 1 or 2 is characterized in that between bow chi and clamp nut anti-rotation pad (7), the stage clip (8) that is contained on the screw mandrel (6) being arranged.

4. the adjustable protractor of electronic digital display as claimed in claim 1 or 2, it is characterized in that the chute on the ruler is shaped as dovetail groove, first slide block, the second slide block shape on first turntable, second turntable, first end are respectively the dovetail that cooperates with dovetail groove, and second end of first turntable, second turntable is the circular shaft with internal thread that cooperates with bow chi center pit, arc groove respectively.

5. the adjustable protractor of electronic digital display as claimed in claim 1 or 2 is characterized in that being equipped with on the case and the corresponding on ﹠ off switch of electronic chip (10), zero clearing button (11) and data maintenance button (12).