CN2189539Y

CN2189539Y - Multi-purpose drawing instrument for student

Info

Publication number: CN2189539Y
Application number: CN 94226365
Authority: CN
Inventors: 游连楚; 俞沅
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-16
Filing date: 1994-03-16
Publication date: 1995-02-15
Anticipated expiration: 2004-03-16

Abstract

The utility model relates to a multi-purpose drawing instrument for students, which comprises a main component of a multi-purpose support frame, a scale with integral structure and a rotating arm, wherein, the scale is provided with graduations of length and angle and can be used as a straight ruler, a set square, a protractor, a T-square and an angle square; the lower end of the rotating arm is provided with slotted structure for clamping a lead cord; the multi-purpose support frame is sheathed with an active sliding block which is provided with a twist grip, a positioning screw and a rotating shaft with a needle. The active sliding block is positioned, and a circle can be drawn by using the needle of the rotating shaft as the center of the circle. Therefore, the utility model has the advantages of multiple purposes and convenient operation and reduces the repeated purchase of apparatus for students. The utility model can be made into different specifications to form serial products.

Description

Multi-purpose drawing instrument for student

The drawing instrument that a kind of student and teacher use.

Existing student's drawing instrument generally includes several instruments such as compasses, ruler, set square, protractor, and various, the function singleness of these tool kinds is not easy to carry and takes care of, troublesome poeration, influences learning efficiency; And the student need purchase respectively, increases the financial burden of student ' s family.Existing student selects the metal material manufacturing for use with compasses, and is heavy, be easy to get rusty, because of its structure is limit, and the definite drawn radius of a circle size of metering not directly, and to take student's time by other metering outfits.It is that common plastics below 1.5 millimeters is made that existing student adopts thickness with ruler, set square, protractor more, very easily fractures, and influences the student and learns.

The purpose of this utility model be for student (teacher) provide an a kind of tool how with, be convenient to mapping operation, reliable in quality, alleviate the drawing instrument of consumer's burden.

The utility model as shown in Figure 1, the 1st, multipurpose bracket is overall structure, comprises rule and cursor, each edge is straight, and two outer rims, rule outer edge and cursor inward flange all meet at right angles, and can make angle square and T-square and use; The cursor lower end has a groove, and a little arc groove is respectively arranged on two walls of groove, and roundlet arc groove center line becomes 30 ° of angles with the cursor inward flange, the clamp nut on the cursor 7 is tightened, and can clamp the lead for retractable pencil 6 that is placed in the little arc groove; There are millimeter and centimetre groove in the rule top, can make ruler and use; There are 0～90 ° of angle index line in rule the right and bottom, can make protractor and set square and use.Be with movable slider 4 on multipurpose bracket 1, left end is fixed with rotary handle 3 above that, and the outer surface of rotary handle 3 is shaped on decorative pattern, and endoporus is shaped on negative thread, and what cooperate with it is dog screw 2; Be fixed with the rotating shaft 5 of band pin at the following left end of movable slider 4, and perpendicular to the inward flange of rule, when being used as compasses and using, read the length groove on the rule, behind the selected drawn radius of a circle, dog screw 2 is tightened, hand-held rotary handle 3 is that the picture circle is rotated in the center of circle with the pin in the rotating shaft 5.The utility model can select for use materials such as plastics, metal, timber to make, and can be made into different size formation series of products.

Advantage of the present utility model is as follows: the function that 1, has compasses, ruler, set square, protractor simultaneously.2, adopt slide block to cooperate, mapping operation is easy, saves time, and the location is tight, and size is accurate, is convenient to student (teacher) and uses.3, select plastics, light, bright and clean, wear-resisting for use, adjustable various color, entire product is solid, and is not fragile, aesthetic in appearance.4, owing to adopt new material and multifunction structure, reduced selling price, reduced student appliance repeat purchase, have obvious social.

In the accompanying drawing 18 is trip bolts.

Embodiment of the present utility model is: 110 * 61 * 6 millimeters of appearance and sizes, dog screw 2 adopts M3 * 25 screw injection mo(u)ldings, clamp nut 7 and trip bolt 8 adopt standard component, and the injection mo(u)lding of ABS material is all adopted in multipurpose bracket 1 and rotary handle 3, movable slider 4, rotating shaft 5.0～100 millimeter of the effective measures range of length, 0～90 ° of angle, maximum 90 millimeters of the radius of circles of drawing.

Claims

1, the plotter used of a kind of student and teacher, form by main element and movable part, it is characterized in that main element is multipurpose bracket (1), be overall structure, comprise cursor and rule, each edge is straight, and two outward flanges, rule outer edge and cursor inward flange all meet at right angles, the cursor lower end has a groove, a little arc groove is respectively arranged on two walls of groove, the center line of little arc groove becomes 30 ° of angles with the cursor inward flange, lay lead for retractable pencil (6) in the little arc groove, and the clamp nut (7) and the clamp nut (8) of clamping lead for retractable pencil (6) usefulness arranged on the cursor.Millimeter and centimetre groove are carved with in the top of rule, and 0～90 ° of angle groove is carved with in the right of rule and bottom.Be with movable slider (4) on multipurpose bracket (1), left end is fixed with rotary handle/(3) above that, and the outer surface of rotary handle (3) is shaped on decorative pattern, and endoporus is shaped on negative thread, and what cooperate with it is dog screw (2); Be fixed with the rotating shaft (5) of band pin and perpendicular to the inward flange of rule at the following left end of movable slider (4).