CN2131710Y - Multifunction plotting instrument - Google Patents

Abstract

The utility model relates to a multi-function plotting instrument, which comprises a circle lacking board 1, two legs 6, 7 of ruler compasses and a rope tape measure 5; the two legs of the ruler compasses is hinged at the back side of the circle lacking board using the centre of circle of the circle lacking board as a shaft; a heavy hanging body 2 is embedded on the circle lacking board; when turn knobs 4, 8, 9 are turned loosely, the circle lacking board can be used as a spirit level; when the circle lacking board swung around the shaft is still, the chord edge of the board and the reticle in 90 DEG are a horizontal line and a vertical line; the instrument collects the main functions of the single device, such as a straightedge, compasses, an ellipsograph, a protractor, a tape measure, a spirit level, a level bar, a heavy plumb ruler, etc., and can complete some measuring functions that the devices can not complete.

Description

Multifunction plotting instrument

The utility model is a kind of surveying instrument that integrates the function of multiple plotter and measuring instrument.

In prior art, Chinese patent CN86202327 provides a kind of " multi-function drawing instrument ", it lacks plate, two ruler pin and handle hinge connection by circle and constitutes, this instrument has proposed a kind of special hinge connection mode, make this instrument have the performance of ruler, compasses, three kinds of drawing instruments of graphometer, realized an instrument three usefulness.Though the more single drawing instrument of this instrument will make things convenient for manyly, people expect to occur multi-purpose surveying instrument more, as the universal meter of electricity field, welcome by the user more than the function.

The purpose of this utility model is the expectation according to above-mentioned people, through polynary design, provides a kind of surveying instrument that integrates the function of multiple plotter and measuring instrument.

Solution of the present utility model is as follows: this instrument has selected for use the circle in the prior art to lack plate, two ruler pin, and these three parts are associated in together by screwed hollow shaft in end and locking turn-knob hinge, then circle being lacked plate redesigns, promptly on the front semi circular surface of the scarce plate of circle, be provided with the scale and the graticule of protractor, on the face of string limit, be provided with the ruler scale, embed a heavy hypophysis in 90 ° of groove bottoms of this plate protractor, it serves as that the axle hinge is associated in the back side that this circle lacks plate that described two ruler pin lack the plate center of circle with circle, the positive face width of each ruler pin equals circle and lacks on the plate protractor base diameter to the distance on string limit, when separately being flattened, these two ruler pin can lack ruler on the plate to being connected into a long ruler with circle, on two ruler pin, lack the tangent place of plate periphery and respectively be provided with a fixedly turn-knob respectively with circle, effect by these two turn-knobs and hingle shaft locking turn-knob can make the scarce plate of circle be fixed on two ruler pin, on this instrument, also set up a rice rope tape measure, and on rice rope chi, be with two spring-backed quills, two end points of fixed length rope chi can be fixed on two ruler tiptoes by these two sleeve pipes, draw oval function thereby finish, this meter rope tape measure is installed on the hingle shaft or is installed on a certain ruler pin.

This instrument will be justified scarce plate, ruler pin, a rice rope tape measure has carried out connecting cleverly and making up, make it can finish ruler, compasses, ellipsograph, protractor, tape measure, level meter, horizon rule, heavily the hang down main drawing and the measurement function of above-mentioned single instrument such as chi, simultaneously, because it is ingenious that structure is provided with, make it can also finish above-mentioned instrument some measurement function that can not finish.

Describe in detail with reference to the accompanying drawings below.

Fig. 1, Facad structure schematic diagram of the present utility model.

Fig. 2, rice rope tape measure structural representation.

Five kinds of structural representations of Fig. 3, ruler pin cross section.

Referring to Fig. 1,1 for circle lacks plate, and 2 is the heavy hypophysis that embeds on the plate, adopts lead or copper billet, be carved with the protractor scale on the arc surface of front, be carved with the ruler scale on the face of string limit, 3 are hinge connection hollow shaft, 4 are the locking turn-knob, 6,7 be about two ruler pin, the 8, the 9th, circle lacks the fixedly turn-knob of plate.Each ruler pin can be made the short chi of single-piece, when left and right sides ruler pin when both sides separately flatten, two ruler pin can lack ruler on the face of plate string limit to being connected into a long ruler with circle; After the pen clipping device 10 of ruler pin 6 bottoms is installed pen, can make compasses and use; Plane Angle can be measured and draw to protractor and ruler pin by this instrument around moving of hingle shaft; When with this instrument vertically and when unscrewing turn- knob 4,8,9, it is a level meter that this circle lacks plate, and when circle lacks plate after heavy hypophysis effect lower swing is static, circle lacks the string limit of plate and protractor, and to hang down the limit diameter all be horizontal line, and 90 ° of grooves of protractor promptly are plumb lines.According to this characteristic, this instrument can be checked the levelness and the perpendicularity of space object, as: the ruler pin of hand-held two merging, this instrument is holded up, treat circle lack plate static after, whether the lower plane of looking into ceiling with the string frontier inspection level, this function is that general horizon rule is not available; And for example this instrument can utilize the perpendicularity of the vertical line inspection metope on the scarce plate of circle, its usage and roughly the same above-mentioned.Utilize the elevation angle and the angle of depression of all right measurement space object of above-mentioned characteristic, as: the ruler pin is separately flattened, the edge-on edge that is placed on the jobbie horizontal plane of long ruler, circle lacks plate and holds up sagging simultaneously, after treating that its swing is static, get final product the throughput hornwork and see the size at its angle of depression or the elevation angle, according to this use principle, this instrument can be drawn the angle of depression or the elevation angle of any number of degrees on perpendicular.

Referring to Fig. 2, the rice rope tape measure of this instrument by shell 11, install in the enclosure rope chi around axle, be installed in this and constitute around an elastic energy storage box 18 on the axle and the rope-winding wheel and the rice rope chi 14 on rope-winding wheel that are positioned at energy storage box periphery, wherein the rope-winding wheel periphery has a U-shaped groove 13, in order to avoid rice rope chi breaks away from wheel body when unrolling, one end of rice rope chi is fixed on the rope-winding wheel, the other end passes shell backguy hole and is fixed on the draw ring 15, is inserted in two spring-backed quills 16 on rice rope chi.Referring to Fig. 1, if this instrument is made of aluminium alloy, the size that can this instrument of appropriate design volume and the thickness of ruler pin, allow in the chi wall that is contained in a certain ruler pin in the tape measure and be installed on the hingle shaft, draw ring is clipped in the middle of the two ruler pin, when ruler angle, the left and right sides separates, can pull out the rope chi by draw ring, dotted line 5 marks the installation site of tape measure among Fig. 1; If this instrument volume is less or make of wood material, tape measure can be installed on a certain ruler pin, and 17 mark its installation site among Fig. 1.This meter rope tape measure except the function of self mainly is and this instrument incompatible drawing function of finishing ellipsograph that matches.When drawing ellipse, open two ruler pin, make the spacing of two ruler tiptoes equal oval two long distance of center circle, use fixedly this degree of ruler pin of turn- knob 4,8,9 then, pull out a rice rope chi again, be fixed on the two ruler tiptoes by the two ends of two sleeve pipes on the rice rope chi with one section rope chi of selected length, then with 2 ruler tiptoe points on drawing face, with other one-pen the rice rope chi between the two ruler tiptoes is pulled into dihedral, and draw a week, promptly finish oval drafting around two ruler tiptoes.In like manner, can draw hyperbola, parabola.

Referring to Fig. 3, the shape of cross section of ruler pin can be a rectangle, also can be polygon, and polygonal the setting mainly is to make the ruler pin can set up scribe mark, allows the ruler pin fuse the function of engineer's scale.Cavity 19 is set in the chi wall, can holds other mapping and calculating apparatus such as micro calculator, slide ruler in the chamber.

Claims (3)

1, multi-functional surveying instrument, comprise that a circle lacks plate and two ruler pin 6,7, they are associated in together by a screwed hollow shaft 3 in end and locking turn-knob 4 hinges, it is characterized in that: the scale and the graticule that on the front semi circular surface of the scarce plate 1 of circle, are provided with protractor, on the face of string limit, be provided with the ruler scale, embed a heavy hypophysis 2 in 90 ° of groove bottoms of this plate protractor, it serves as that the axle hinge is associated in the back side that this circle lacks plate that described two ruler pin lack the plate center of circle with circle, the positive face width of each ruler pin equals circle and lacks on the plate protractor base diameter to the distance on string limit, on two ruler pin, lack the tangent place of plate periphery and respectively be provided with a fixedly turn-knob 8 respectively with circle, 9, on this instrument, also set up a rice rope tape measure, and on rice rope chi, being with two spring-backed quills, this meter rope tape measure is installed on the hingle shaft or is installed on a certain ruler pin.

2, surveying instrument as claimed in claim 1, it is characterized in that: described rice rope tape measure by shell 11, install in the enclosure rope chi around axle, be installed in this and constitute around an elastic energy storage box 18 on the axle and the rope-winding wheel and the rice rope chi 14 on rope-winding wheel that are positioned at energy storage box periphery, wherein the rope-winding wheel periphery has a U-shaped groove 13.

3, as claim 1,2 described surveying instruments, it is characterized in that: the shape of cross section of described two ruler pin 6,7 can be a polygon, and is provided with the cavity 19 that can hold other topographic equipment or calculate apparatus in the chi wall.

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