CN202200731U - Line, angle and surface surveying instrument - Google Patents

Line, angle and surface surveying instrument Download PDF

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Publication number
CN202200731U
CN202200731U CN2011202312777U CN201120231277U CN202200731U CN 202200731 U CN202200731 U CN 202200731U CN 2011202312777 U CN2011202312777 U CN 2011202312777U CN 201120231277 U CN201120231277 U CN 201120231277U CN 202200731 U CN202200731 U CN 202200731U
Authority
CN
China
Prior art keywords
angle
line
protractor
pointer
surveying instrument
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011202312777U
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Chinese (zh)
Inventor
孟东风
路丽娜
Original Assignee
孟东风
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孟东风 filed Critical 孟东风
Priority to CN2011202312777U priority Critical patent/CN202200731U/en
Application granted granted Critical
Publication of CN202200731U publication Critical patent/CN202200731U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a line, angle and surface surveying instrument. A double-layer hollow, transparent and semi-circular protractor (2) is arranged on the body of a ruler (1). A suspension type pointer (4) is arranged by taking the circle centre of the protractor (2) as a rotating shaft (3). The gravity centre of the pointer (4) is the pointing end of the pointer. The pointing end of the pointer (4) points to the scale of the protractor. According to the line, angle and surface surveying instrument disclosed by the utility model, the suspension type pointer is arranged at the central axis of the protractor; when the line, angle and surface surveying instrument is used, the pointer always points to the vertical downward direction however the ruler is placed on a vertical plane; geometrical straight lines of various slopes can be conveniently drawn according to numerical reading on the scale of the pointer and the protractor; a vertical line or whether the vertical surface, an inclined surface or an inclined surface is vertical can be measured; the conventional levelling instrument and the protractor are organically combined together; the multi-purpose of the ruler is realized; when the line, angle and surface surveying instrument is applied to producing and teaching, the working efficiency can be greatly increased; and the line, angle and surface surveying instrument is convenient, rapid and accurate to measure and draw.

Description

Line angle face surveying instrument
Technical field
The utility model relates to a kind of topographic equipment, especially a kind of line angle face surveying instrument.
Background technology
In mathematics, the physics lesson teaching; Often need make a large amount of geometrical line; As the horizontal line that draws, plumb line, become oblique line at any angle with horizontal line (or plumb line); Draw the apace triangle, parallelogram of parallel lines, specified angle etc., in physics teaching, draw index path (angle of reflection equals incidence angle, the refraction angle less than or greater than incidence angle etc.), draw the inclined-plane of any gradient etc.Owing to often need on blackboard or other vertical plane, make these geometrical line, the teacher need carry various teaching aids such as ruler, protractor, set square or T-square with oneself when giving lessons.Use by turns during the demonstration line, the quite trouble that operates not only wasted the time, and the figure of making is also very lack of standardization.In activity in production, the master worker is with general vacuole the horizon rule accurately levelness and vertical degree of measurement plane.
Summary of the invention
The purpose of the utility model is exactly in order to overcome the above problems; A kind of line angle face surveying instrument is provided; Can make the teacher on vertical plane, make various how much straight lines easily, make the master worker accurately levelness and vertical degree of measurement plane, easy to use, quick, accurate.
The utility model line angle face surveying instrument; On the ruler blade, be provided with the semicircular protractor of double-deck hollow transparent; The center of circle of protractor is located on one side of ruler blade; With this center of circle is that rotating shaft is provided with the suspension type pointer, and pointer freely swings at the hollow space of protractor, and the scale of protractor is pointed in the pointer indication end.
As another improvement of the utility model, protractor scale center is 0 degree, and therefrom the mind-set both sides are incremented to 90 degree respectively.
Another kind as the utility model improves, and protractor scale center is 90 degree, and therefrom the mind-set both sides are decremented to 0 degree respectively.
The utility model is established a hanging type pointer at the circle core shaft place of protractor; No matter how ruler is placed on blackboard panel or other vertical plane during use; The sensing of pointer just can be made how much straight lines of required various gradients all the time straight down so easily on blackboard or other vertical face according to the reading on pointer and the protractor dial.Conversely, also available this surveying instrument is measured the gradient on oblique line or inclined-plane intuitively.Press close to the plane to the downside of surveying instrument, but the levelness of measurement plane and vertical degree.
The utility model organically combines the ruler structure and the angle gage structure of routine; Both can make ruler, can do protractor again, also can make horizon rule; Realized that a chi uses more; Reduced the quantity that teacher and workman carry teaching aid, improved classroom efficiency and production efficiency greatly with its mapping, the mapping figure is convenient, fast, accurate.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
As shown in Figure 1; The utility model line angle face surveying instrument; Blade is a ruler 1 and the semicircular protractor 2 of a clear hollow on it; The blade of ruler 1 is a straight batten of being processed by wood lath or other material such as plastics, bamboo clappers or metallic plate etc., indicates graduation mark at the upper limb of batten.On ruler 1 blade, be provided with the semicircular protractor 2 of clear hollow; Protractor 2 outer edge sides indicate graduation mark; The center of circle of protractor is located on ruler 1 blade, at this circle centre position one rotating shaft 3 is housed, and hanging type pointer 4 is even adorned in suspension in the rotating shaft 3; Pointer 4 can 3 rotate around the shaft flexibly, and the scale of protractor 2 is pointed in the indication end of pointer 4.Protractor 2 scale centers are 0 degree, and therefrom the mind-set both sides increase to 90 degree respectively.When ruler 1 blade was in level, it was the groove place of " 0 " that pointer 4 points to protractor 2 upper angle values just.When ruler 1 blade during, all can directly read drawn straight line and horizontal angle from protractor 2 to two tilt.In addition, also can mark a circle scale value simultaneously again, the scale center is 90 degree, and therefrom the mind-set both sides are decremented to 0 degree respectively, so just can read the angle of drawn straight line and plumb line simultaneously.In addition, protractor is made the clear hollow semicircle, and protractor 2 outer edge sides indicate graduation mark, and inner hollow area 5 supplies pointer to freely swing back and forth, guarantees the sensitivity of its use.
In the practical application, the utility model can be used to draw the various forms of straight lines of system at blackboard or other vertical plane easily, also can in the multiple field of routine work and life, be used to measure simultaneously the gradient of object surface, and its concrete occupation mode is described below:
1, draw straight line: make the surveying instrument back side be close to blackboard, left rotation and right rotation, simultaneously; Watch the scale value on the pointer 4 indication protractors 2 attentively, after the indication indicating value reaches desired value, pin this surveying instrument on the other hand; Along the setting-out of ruler edge, another hand can draw an oblique line that the angle of inclination is a desired value with chalk; Drawn straight line was a horizontal line along the ruler edge when pointer 4 pointed to 0 degree value, and drawn straight line was a plumb line when pointer 4 pointed to 90 degree values; The many lines that the angle of inclination is identical that draw respectively, then these lines are one group of parallel lines.
2, drawing angle is the α angle: earlier with the surveying instrument initial line that draws arbitrarily; Write down its angle beta corresponding on protractor; Then blade is rotated along the plate face; When making pointer indication angle value equal alpha+beta, draw a line again and link to each other with initial line, then the angle formed of these two lines be exactly the appointment angle α that will draw.
3, draw number axis: the method with above-mentioned 1, draw respectively horizontal line and plumb line are put on initial point, unit is number axis accurately.
4, draw other figures: with someway above-mentioned, or the combination of several method, the multiple figure of also can painting out.As: the triangle of specified angle, similar figures, congruent figures, parallelogram, rectangle, index path or the like.
5, the number of degrees of measured angular: make two limits of ruler edge aligned angle to be measured, read corresponding angle value respectively, the difference of two angle values is measured angle.
6, be attached to the downside 6 of surveying instrument on the plane, the plane was a horizontal plane when pointer 4 pointed to 0 degree value, and the plane was a vertical plane when pointer 4 pointed to 90 degree values, and there is certain gradient on other value representation plane.
7, the angle of different angles also can measured or draw to utilization hornwork 2, ruler 1 on various horizontal planes.

Claims (1)

1. line angle face surveying instrument; It is characterized in that: on ruler (1) blade, be provided with the semicircular protractor of double-deck hollow transparent (2); The center of circle of protractor (2) is on one side of ruler (1) blade; With this center of circle is that rotating shaft (3) is provided with suspension type pointer (4), and the scale of protractor is pointed in the indication end of pointer (4).
CN2011202312777U 2011-06-23 2011-06-23 Line, angle and surface surveying instrument Expired - Fee Related CN202200731U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202312777U CN202200731U (en) 2011-06-23 2011-06-23 Line, angle and surface surveying instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202312777U CN202200731U (en) 2011-06-23 2011-06-23 Line, angle and surface surveying instrument

Publications (1)

Publication Number Publication Date
CN202200731U true CN202200731U (en) 2012-04-25

Family

ID=45964867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202312777U Expired - Fee Related CN202200731U (en) 2011-06-23 2011-06-23 Line, angle and surface surveying instrument

Country Status (1)

Country Link
CN (1) CN202200731U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120425

Termination date: 20120623

C17 Cessation of patent right