CN2300520Y - Measuring-drawing combined drawing instrument - Google Patents

Abstract

The utility model discloses a measuring-drawing combined drawing instrument. A semicircle through hole is opened in the middle of a triangular rule board surface, and the arc side is provided with an angle mark, and the lower side of the chord is opened and connected with an oblong through hole. The middle of the lower side of the oblong through hole is connected with upwards and forwards bearing flanges. Axle holes are arranged in the bearing flange. The bottom end of an indicating needle is fixedly provided with a vertical axle rod. The axle rod upwards passes through the axle hole in the bearing flange, and the axle rod is connected with a screw nut. The needle part of the indicating needle head is positioned on the surface of the through hole arc side of a semicircle. The indicating needle and the axle rod can carry out the 0-180 DEG rotation by winding the axle hole in the bearing flange. The utility model has the advantages that the angle of measurement and drawing is convenient, and the deviation is hard to generate.

Description

The amount picture is in conjunction with plotter

The utility model relates to the drawing appliance that a kind of amount is drawn combination.

At present, set square and protractor are two kinds of the most frequently used amount picture drawing appliances of people.A kind of " using the hypotenuse set square " that Shanghai Pen-made Spares Factory No. 8 produces more, wherein have a semicircle orifice in the middle of a set square plate face, be shaped on 0～180 ° angle mark on the lonely limit of this semicircle orifice, it is combined into one set square and protractor, provides certain convenience for people measure the picture angle.But, when people draw angle line with this drawing appliance, also still must divide for two steps finished, promptly the throughput hornwork is determined angle earlier and is drawn a fixed point, and then connects angle line with this fixed point.So, also easily deviate during the angle line of picture or cumbersome, and picture like this.In addition, when the angle fixed point that draws in advance dropped on outside the required angle line length, this picture point must be wiped, and this is again a trouble.

The purpose of this utility model just provides a kind of amount and draws the convenient and amount picture that is difficult for deviating of angle in conjunction with drawing appliance.

Technical solution of the present utility model is: a half-round cross hole is left in the set square plate face centre that is shaped on length scales on the face of limit, one three limit, be shaped on 0～180 ° angle mark on the arc limit face of this half-round cross hole, particularly: below, said half-round cross hole string limit has rectangular through holes, wide its top semicircle orifice diameter that equals of this rectangular through holes, high wide in 1/2 pointer, be connected with a support lug that makes progress and protrude forward in the middle of this rectangle base, also be shaped on axis hole in the support lug; Cut jagged below the pointer head tip, be in above the pointer head tip on the arc limit face of half-round cross hole, the pointer bottom is in below the support lug and is fixed with a vertical axostylus axostyle, the axostylus axostyle bottom face is equal with the pointer bottom surface, axostylus axostyle passes the axis hole in the support lug up, axostylus axostyle the higher authorities are shaped on screw thread and are connected with nut, but 0～180 ° of angle of pointer and the axostylus axostyle axis hole turn in support lug.

Pointer two limits that above-mentioned amount is drawn in the plotter can be shaped on length mark, and the pointer width can be 4～8mm.

The utility model be owing to can determine exactly and the angle of drawing by the turn pointer, and need not to draw earlier fixed point when drawing angle, needs only can once draw after pointer is screwed into required angle.Therefore, its amount of having is drawn the advantage that angle is convenient and be difficult for deviating.

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 among Fig. 1 along portion's view that the pointer center line dissects.

Below in conjunction with accompanying drawing the utility model is further elaborated.

The amount picture is made up of set square 1, pointer 2, support lug 3, axostylus axostyle 4 and nut 5 in conjunction with plotter.Limit, the three limits face of set square is shaped on length scales, leave a half-round cross hole in the middle of this set square plate face, be shaped on 0～180 ° angle mark on the arc limit face of half garden through hole, the below on half-round cross hole string limit has rectangular through holes, wide its top semicircle orifice diameter that equals of this rectangular through holes, high wide in 1/2 pointer, one support lug that makes progress and protrude is forward arranged in the middle of this rectangle base, describedly upwards and forward protrude, be meant on the support lug that projection and flange front end edge are forwards protruded in the half-round cross hole upward on the plane.Support lug projection upward is that there is revolution space its bottom when guaranteeing the pointer turn, and this support lug and set square plate face are connected as a single entity.Be shaped on axis hole in the support lug, this axis hole center is on the mid point of half-round cross hole string limit.Cut jaggedly below the pointer head tip, be in above the pointer head tip on the arc limit face of half-round cross hole, refer to be carved with an index line above the needle tip and be on the center line above the pointer.The pointer bottom is in below the support lug and is fixed with a vertical axostylus axostyle, axostylus axostyle is made of metal, the axostylus axostyle bottom face is equal with the pointer bottom surface, axostylus axostyle passes the axis hole in the support lug up, axostylus axostyle the higher authorities are shaped on screw thread and are connected with nut, but 0～180 ° of angle of pointer and the axostylus axostyle axis hole turn in support lug.Following cross section of axostylus axostyle that is fixed on pointer bottom is a face of gear, shank following to penetrate in the corresponding hole, pointer bottom tight fit affixed, axostylus axostyle the higher authorities insert in the support lug axis hole and have nut to connect.During use, unclamp the nut on the axostylus axostyle, rotary indicator arrives required angle, pushes down pointer or screw nut once to be drawn as angle line.

Claims (3)

1, a kind of amount is drawn in conjunction with plotter, be that a half-round cross hole is left in the set square plate face centre that is shaped on length scales on the face of limit, one three limit, be shaped on 0～180 ° angle mark on the arc limit face of this half-round cross hole, it is characterized in that: said half-round cross hole string limit below connects and has rectangular through holes, wide its top half-round cross hole diameter, high that equals of this rectangular through holes in referring to that 1/2 pointer is wide, be connected with a support lug that makes progress and protrude forward in the middle of this rectangular through holes base, also be shaped on axis hole in the support lug; Cut jagged below the pointer head tip, be in above the pointer head tip on the arc limit face of half garden through hole, the pointer bottom is in below the support lug and is fixed with a vertical axostylus axostyle, the axostylus axostyle bottom face is equal with the pointer bottom surface, axostylus axostyle passes the axis hole in the support lug up, axostylus axostyle the higher authorities are shaped on screw thread and are connected with nut, but 0～180 ° of angle of pointer and the axostylus axostyle axis hole turn in support lug.

2, amount according to claim 1 is drawn in conjunction with plotter, it is characterized in that described pointer two limits are shaped on length mark.

3, amount according to claim 1 and 2 is drawn in conjunction with plotter, and the width that it is characterized in that pointer is 4～8mm.

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