CN203605883U

CN203605883U - Flexible and memorable goniometer

Info

Publication number: CN203605883U
Application number: CN201320771865.9U
Authority: CN
Inventors: 郭永然; 蔡玉婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-05-21
Anticipated expiration: 2023-11-29

Abstract

A flexible and memorable goniometer employs an X-shaped structure composed of two crossing bars. The V shape in the upper part is a two-layer overlapping structure which can be expanded into a rhombus. During measurement of a convex corner, the convex corner is embedded into the V-shaped corner of the upper part of the X-shaped structure. During measurement of a concave corner, overlapping sides of the V shape are unfolded to form a rhombus, the upper end of which is embedded into the to-be-measured corner, and the angle is measured through adjustment of handles. A linear side of a protractor is fixed on the inner side of a left bar of the X-shaped structure. The intersection point of the X-shaped structure coincides with the center of the protractor. The protractor covers a 0-to-180-degree range from bottom to top. An indicator is installed at the intersection point of the X-shaped structure, and one of the bars without the protractor is equipped with a hook capable of pushing the indicator to rotate. Two said handles are installed under the X-shaped structure. The goniometer is low in production cost, easy to use, and precise in angle measurement.

Description

The angular instrument that a kind of deformable can be remembered

Technical field

The present invention relates to a kind of instrument taking measurement of an angle, belong to measurer technical field; The shape that especially can manually change by user test position, externally salient angle and interior re-entrant angle are measured respectively, are remembered and are accurately pointed to and take measurement of an angle by pointer, can after taking out instrument, carry out reading again.

Background technology

At present, there is a kind of re-entrant angle protractor, formed by protractor body, angle indicator, pivot pin and diamond structure.While measuring re-entrant angle, diamond tips is inserted to re-entrant angle, its link in rhomb form drives angle indicator to point to the protractor number of degrees.But this protractor can only be measured re-entrant angle, and be not easy to one-handed performance, the number of degrees are reading immediately, when user is cannot can not use in direct reading space.Copy the structure of scissors that the protractor with pointer is arranged on to " scissors " (below claiming X structure) intersection point place, can measure outer salient angle.The character equilateral in conjunction with rhombus, diagonal angle is equal, opens the v-shaped structure of the X structure first half, makes the first half become rhombus, can measure interior re-entrant angle.Pointer is installed at X intersection point place, and its advantage also can take measurement of an angle by memory capacitance hornwork except quick pin-point reading.

Utility model content

In order to overcome the deficiency of above-mentioned re-entrant angle protractor, the invention provides a kind of angular instrument of new construction, this angular instrument not only can be measured by adjusting the next external salient angle of instrument shape and interior re-entrant angle, and increase pointer, for to the memory taking measurement of an angle, can be from measurement space takes out again the scale of the protractor by pointed carry out Rapid reading.Grip is also installed at handle place, more comfortable when user uses, be conducive to one-handed performance.

The angular instrument that deformable can be remembered, entirety adopts X structure, and X structure is intersected and is formed by two bars, and first half V-shape portion is divided into the deployable structure that becomes rhombus, and the described X structure first half has two states, and one is V-arrangement, and another kind is rhombus.In the time surveying outer salient angle, make in the V-arrangement angle of the outer salient angle embedding X structure first half.In surveying, when re-entrant angle, open the overlapping limit of V-arrangement, make it become rhombus, the top embedding of rhombus is treated in angle measurement.X intersection point and protractor center superposition, scale is all carved with on the protractor two sides that install at X intersection point place, is 0-180 degree from bottom to top, and protractor straight line one side is fixed on the inner side of left bar in X structure, and guaranteed discharge hornwork center overlaps with X intersection point, in the time of left bar rotation, can drive protractor rotation.

Pointer is installed at X intersection point place, and pointer is connected with X intersection point strand property, connects closely.The Si Ge summit, upper and lower, left and right (summit, rhombus below is X intersection point) of rhombus all adopts strand property to connect, flexible structure.On the body of rod of fixed amount hornwork not, a hook is set, this hook is less than pointer length apart from X intersection point distance, this hook be L shaped (be that view is convenient, it is slightly wide that L horizontal component in accompanying drawing is drawn), during this is L shaped, vertical position is perpendicular to protractor place plane, in the time that handle part closes up, this hook groove, pointer, 0 ° of scale mark is at same on the straight line perpendicular to protractor place plane, pointer is from pointing to 0 scale, until orientation angle equals in the process of institute's angle measurement, all the time keep overlapping with the bar inside edge line with hook, and pointer does not rotate during not by external force.While opening handle, the hook pointer of can only extrapolating, while closing up handle, the relative angle at pointer and 0 ° of angle of protractor does not change.

The below of X structure is equipped with two handles, and two handle borders of X structure below are entity structure, and inside is empty.Two bars of X structure the latter half are the prolongation on two limits, rhombus below.

The invention has the beneficial effects as follows: user can be according to being outer salient angle, interior re-entrant angle different situations, selecting to change instrument first half shape measures, by the rotation of hook push pointer, measure backpointer memory angle, can take out after measuring instrument at measurement space outward by pointer angle Rapid reading pointed.Angular instrument below is furnished with handle, and one-handed performance preferably is simple in structure easy to operate.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is re-entrant angle structural map in angular instrument of the present invention is surveyed.

Fig. 2 is that angular instrument of the present invention is surveyed outer salient angle structural map.

Fig. 3 is angular instrument local structure schematic diagram of the present invention.

1. summits, rhombus top in figure, 2. left upper arm, 3. right upper arm, 4. summit, rhombus left side, 5. summit, rhombus right side, 6. lower-left arm, 7. bottom right arm, 8. protractor, 9.X intersection point, 10. left bar, 11. right bars, 12. left handles, 13. right handles, 14. hooks, 15. pointers.

Embodiment

In the embodiment shown in fig. 1, when initial, left handle (12), right handles (13) are closed up, rhombus summit, left side (4) and summit, rhombus right side (5) merge, check whether pointer (15) points to 0 scale, and rhombus summit, top (1) embeds and treats angle measurement, opens left and right handle, protractor (8) is with fixing left bar (10) rotation, and pointer edge under the promotion of hook (14) rotates with protractor reverse direction.Diamond shape also changes thereupon, rhombus left upper arm (2), and right upper arm (3) is launched, and continues to adjust handle until left and right upper arm is close to institute angle measurement wall respectively.Now can carry out reading, all be carved with scale because of protractor (8) two sides, the diverse location that person easy to use is positioned at angular instrument carries out reading, and institute's measuring angle is pointer indication scale.If reading is inconvenient to carry out in space, also can take out angular instrument, left and right handle is closed up, pointer still points to surveyed angle, then correctly carries out reading.Manually pointer (15) is resetted.

In embodiment illustrated in fig. 2, this structure is to press rhombus summit, top (1) after opening handle by Fig. 1 structure, rhombus summit, top (1) is overlapped with X intersection point (9), left upper arm (2) in rhombus overlaps with lower-left arm (6) by rotation, and right upper arm (3) overlaps with bottom right arm (7) by rotation.Make one-piece construction become X structure and measure interior re-entrant angle.When initial, left and right handle closes up, and checks whether pointer (15) points to 0 scale, opens left and right handle, by treating that angle measurement embeds the V-arrangement inside of X superstructure, then adjusts left and right handle, and V-arrangement border and institute's angle measurement in X structure are close to.Carry out the reading operation in similar Fig. 1.

In Fig. 3, X intersection point (9) upper grooves is connected with pointer (15) root, pointer (15) does not rotate by external force, lower recess is left bar (10) and right bar (11) junction, because protractor (8) in figure mono-is fixed on left bar (10), hook (14) is placed in right bar (11) above herein, and in the time that right handles (13) is rotated, hook (14) push pointer (15) is along rotating with protractor (8) reverse direction.Pointer (15) indication registration is institute's measuring angle.

Claims

1. the angular instrument that deformable can be remembered, entirety adopts X structure, it is characterized in that: first half V-shape portion is divided into the deployable structure that becomes rhombus, X intersection point and protractor center superposition, scale is all carved with on the protractor two sides that install at X intersection point place, 0-180 degree from bottom to top, protractor straight line one side is fixed on the inner side of left bar in X structure, and guaranteed discharge hornwork center overlaps with X intersection point, pointer is installed at X intersection point place, pointer is connected with X intersection point strand property, rhombus upper, under, left, right four summits all adopt strand property to connect, on the body of rod of fixed amount hornwork not, a hook is set, this hook is less than pointer length apart from X intersection point distance, in the time that handle part closes up, this hook groove, pointer, 0 ° of scale mark is at same on the straight line perpendicular to protractor place plane, pointer is from pointing to 0 scale, until orientation angle equals in the process of institute's angle measurement, all the time keep overlapping with the bar inside edge line with hook, and pointer does not rotate during not by external force.

2. the angular instrument that a kind of deformable according to claim 1 can be remembered, is characterized in that: two handle borders of X structure below are entity structure, and inside is empty.