CN103009886B - Multifunctional curve drawing tool - Google Patents

Abstract

The invention discloses a multifunctional curve drawing tool, which comprises: a machine body, which is formed by stacking and fixedly connecting an upper shell and a lower shell of the machine body, both of which are linear; It is fixedly connected by a positioning column, and a through hole of the same size and length is opened on the other same side of the two to form a complete guide chute hole after combination. At least there is a linear scale scale on the edge of the upper shell of the body; one is made of elastic material. A curved handle that is at least equal to the length of the body, with connectors at both ends; a guide slide-linkage mechanism that can move along the guide slot hole to link the curved handle; the connector at one end of the curved handle is connected to the positioning column , the connector at the other end is connected with the guide slide-linkage mechanism. It can solve the problem of drawing large curvature arcs, especially the drawing of symmetrical curvature arcs, and at the same time can complete straight line drawing, special angle and horizontal position measurement.

Description

A Multifunctional Curve Drawing Tool

technical field

The invention relates to a stationery product, in particular to a multifunctional curve drawing tool.

Background technique

Similar products currently on the market include serpentine rulers and curve templates. The characteristic of the snake-shaped ruler is that the curvature can be adjusted arbitrarily. The disadvantage is that because the product has a built-in metal sheet and is wrapped with plastic, it is necessary to adjust the shape of the snake-shaped ruler by hand. The resulting curve is not smooth and coherent, which affects the accuracy and is not easy to operate. The characteristic of the curve template is that each template has a curvature, and the range of curvature is limited. To expand the range of the curve, multiple templates are required and it is troublesome to operate and carry. In addition, these two products are separate products (only curves can be drawn), and relatively speaking, they have a single function.

Contents of the invention

The purpose of the present invention is to provide a multifunctional curve drawing tool with good use effect, which can solve the problem of drawing arcs with large curvature, especially the drawing of arcs with symmetrical curvatures.

Another object of the present invention is to provide a multifunctional curve drawing tool, which can integrate multiple functions, and can simultaneously draw curvature arcs and straight lines, and measure special angles and horizontal positions.

To achieve the above object, the present invention takes the following design scheme:

A multifunctional curve drawing tool, which includes:

A machine body, which is formed by superimposing and fixedly connecting the upper shell and the lower shell of the machine body, both of which are linear; the same side end of the two is fixedly connected by a positioning column, and the other end of the same side of the two is opened Through holes of the same size and length to form a complete guide slot hole after combination;

A curved handle made of elastic material and at least equal to the length of the body, with connectors at both ends;

A guide slide-linkage mechanism that can move along the guide slide groove hole to link the curved handle;

The connecting head at one end of the curved handle is connected with the positioning column, and the connecting head at the other end is connected with the guide slide-linkage mechanism.

The guide slip-linkage mechanism of the multi-functional curve drawing tool includes a positioning screw pierced with a guide slide slot hole, locked by a guide slide locking button; the connectors at both ends of the curve handle are fixed rings, and one end of the curve handle The fixing ring at one end is sleeved on the positioning column, and the fixing ring at the other end is sleeved on the positioning screw.

The multifunctional curve drawing tool is also equipped with a measuring angle plate, one end of the measuring angle plate has a hole and is sleeved on the positioning column, and there is at least one of the following structures on the measuring angle plate: 1) a A set of hollow lines, the set of hollow lines respectively have preset degrees with the bottom edge; 2) The body is provided with a right-angle limiting pin that limits the measuring angle plate to a position of 90 degrees. One of the preferred schemes is: a set of two hollow lines, the two hollow lines are respectively 30 degrees and 45 degrees from the bottom edge.

In the described multifunctional curve drawing tool, a level is also provided, and the level is an airtight tube of a transparent material arranged on the body. There is water and air in the airtight tube, and the airtight tube can be made of acrylic material.

The length of the curved handle of the multifunctional curve drawing tool is equal to the length of the working area of the body, and the length of the working area of the body is the distance between the positioning post and the positioning screw; the length of the guide slot hole is at least 1 of the length of the curved handle. /5.

In the multifunctional curve drawing tool, the upper body shell and the lower body shell have the same width and length.

In the multi-functional curve drawing tool, a horizontal groove is provided on the outer plate surface around the guide groove hole area of the lower shell of the body for the head end of the positioning screw to lie flush therein.

In the multifunctional curve drawing tool, a fastening screw is added on the body near the hole of the guide chute.

The multifunctional curve drawing tool of the present invention solves the problem of drawing large curvature arcs, especially the drawing of symmetrical curvature arcs. Using the elasticity and plasticity of the production material (such as: plastic), the curve can be adjusted steplessly through the guide slide-linkage mechanism. At the same time, this multifunctional curve drawing tool can also be used as a linear ruler, a protractor (15, 30, 45, 60, 90 degrees) and a spirit level.

The advantages of the present invention are:

1. Multiple functions, wide range of application. This multifunctional curve drawing tool is mainly used for drawing curves, and has multiple functions such as drawing straight lines, surveying and mapping right angles and 15, 30, 45, and 60-degree angles, and measuring horizontal flatness.

2. The structure is novel, and the product can be injection molded at one time, so it is easy to process and manufacture; the structure is compact and the installation is convenient.

3. Good intuition and linkage, reasonable and ingenious design, easy to use, and man-machine convenience.

Description of drawings

Fig. 1 is a structural schematic diagram (top view) of the multifunctional curve drawing tool of the present invention.

Fig. 2 is a structural schematic diagram (assembly relationship) of the multifunctional curve drawing tool.

FIG. 3 is a schematic diagram of the structure of the upper shell of the multifunctional curve drawing tool.

FIG. 4 is a schematic diagram of the structure of the lower shell of the body of the multifunctional curve drawing tool.

Fig. 5 is a working schematic diagram of the curve handle of the multifunctional curve drawing tool.

Fig. 6 is a schematic diagram of the angle plate rotation of the multifunctional curve drawing tool.

In the figure: 1-machine body; 11-body upper shell; 12-body lower shell; 121-lying groove; 2-curved handle; 3-angle plate; Positioning screw; 7-fastening screw; 8-level; 9-guide hole; 10-right angle limit pin.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Detailed ways

As shown in Fig. 1 and Fig. 2, the multifunctional curve drawing tool of the present invention can be the dual function drawing tool that body 1, curve handle 2 constitute, also can be the multifunction drawing tool that protractor plate 3 and spirit level 8 are added.

The body 1 is formed by stacking and fixedly connecting the upper body shell 11 and the lower body shell 12, as shown in Figures 1 to 4, both of which are linear and have the same width and length; One end of the same side is fixedly connected by a positioning column 5, and through holes 91, 92 of the same length are opened at the other end of the same side of the two to form a complete guide slide groove hole 9 after combination, and can be used along the A guide-sliding-linkage mechanism sliding in the guide-slide groove hole 9 also has the fixing of the other end, and the guide-slide-linkage mechanism includes a positioning screw 6, which respectively passes through the lower body shell and the upper body shell from bottom to top guide slot hole, and can be locked by a guide slide locking button 4; in order to make the position of the head end of the positioning screw 6 with a cap flush with the lower shell 12 of the body, the guide slot hole area around the lower shell of the body can be Offer lying groove 121 (referring to Fig. 4) on the outer plate surface, allow the set screw 6 band cap head end that passes through guide chute hole to lie in this lying groove. In order to reach a better connection and fixing effect, a fastening screw 7 can be added near the guide chute hole 9 on the body. The body 1 is not only a basic component that integrates the main parts, but also has the function of a ruler. At least there is a linear scale scale on the edge of the upper shell 11 of the body, or there are scales on the edge of the upper shell 11 and the lower shell 12 of the body. Linear ruler scale.

The curved handle 2 is made of elastic material, and its single structure is a long straight handle with connectors at both ends, and the connectors at both ends are respectively connected with the guide slide-linkage mechanism and the positioning column. A preferred solution is: the two connectors are fixed rings, the connectors at the two ends are respectively sleeved on the positioning column 5 and the positioning screw 6 during assembly and use, and the horizontal movement of the positioning screw 6 along the guide slot hole 9 of the body is used. , the curved handle 2 is elastically deformed by external force, and the curvature changes; the length of the curved handle 2 should be equal to or greater than the length of the body, and the optimal length should be selected to be equal to the length of the working area of the body. The length of the working area of the body is the positioning column 5 and The distance between the positioning screws 6, and the length of the guide slot hole is at least 1/5 of the length of the curved shank. In this embodiment, the curved handle 2 is made of plastic, and the connectors at both ends are fixed rings with central sleeve holes. The two fixed rings are respectively sleeved on the positioning column 5 and the positioning screw 6, and are clamped on the body during assembly. Between the upper shell and the lower shell of the body.

In the described multifunctional curve drawing tool, also can be equipped with a protractor plate 3, referring to Fig. 3, shown in Fig. 4, one head end of this protractor plate perforates and is sleeved on the positioning post 5, on the protractor plate surface A group of hollow lines can be designed on the top, and the set of hollow lines are respectively preset to the degree of the bottom; in this embodiment, two hollow lines 31, 32 (can be connected or separated) are designed. The two hollow lines are respectively 30 degrees and 45 degrees with the base; the body can also be provided with a right-angle limiting pin 10 that limits the angle plate to a position of 90 degrees.

Referring to Fig. 1, Fig. 3 and Fig. 4, this multifunctional curve drawing tool can also be equipped with a level 8, which is a closed tube of a transparent material arranged on the body, and there is water and air in the closed tube. In an embodiment, the airtight tube is made of acrylic material.

Referring to Fig. 1 and Fig. 2, the overall assembly of this multifunctional curve drawing tool is (according to the directions shown in Fig. 1 and Fig. 5): the positioning screw 6 is first passed through the guide chute of the lower shell 12 of the body and placed at the right end. The measuring angle plate is placed on the positioning column 5 of the lower shell of the body, and the central sleeve hole of the fixed ring at the left end of the curved handle 2 is also placed on the positioning column 5 of the lower shell of the body, and the central sleeve hole of the fixed ring at the right end of the curved handle 2 is placed on the Set screw 6 on. Cover the upper casing 11 of the body, and the positioning screw 6 will pass through the guide chute of the upper casing of the body naturally, and the nut in the guide sliding locking button 4 is tightened and connected with the positioning screw 6 . After installing the fastening screws 7 of the upper shell and the lower shell of the body, the product can be assembled.

The working principle of the multifunctional curve drawing tool of the present invention is:

1) Use of the straight line board: Draw the required straight line according to the straight line scale on the edge of the body 1.

2) The working principle of the curve: see Fig. 5, the guide slide lock button 4 slides in the guide slide groove hole 9 (slides from the outermost end to the inside), since the guide slide lock button 4 is connected with the curve handle 2, along with The movement of the guide slide lock button 4 changes the curvature of the curved handle 2, and the guide slide lock button 4 can be locked at any time according to the state of curvature to fix its curvature arc. As the displacement of the guide slide lock button (inwardly) increases gradually, the curvature of the curved handle also increases, and vice versa.

3) The working principle of the angle measuring plate: see Figure 6, pull out the angle measuring plate 3 clockwise from the machine body, due to the function of the right angle limiting pin 10, it can be limited to the position of 90 degrees, and has the function of a right angle device. There are two hollow lines 31,32 on the measuring angle plate, which are 30 degrees and 45 degrees with the base respectively. In this way, special angles of 15°, 30°, 45°, 60°, and 90° can be measured and drawn along the hollow line and the two side lines on the angle measuring board surface.

4) The working principle of the spirit level: the bottom edge of the body 1 is a horizontal plane, and there is water and air in the airtight tube, so air bubbles can be formed, so that the body and the airtight pipe naturally form an instrument for measuring the horizontal state of an object. When one end of the body 1 is higher, the bubbles will naturally lean towards the higher side, and if the object is horizontal, the bubbles will be centered.

When drawing industrial product renderings, indoor and outdoor environment renderings and mechanical drawing, the multifunctional curve drawing tool of the present invention can well assist in completing the drawing work. Specific operation: Easily adjust the position of the guide slide lock button to change the curvature arc, and the brush can accurately and easily draw the desired convex and concave arcs according to the edge of the curved handle (inside or outside), which is convenient and convenient. After use, unscrew the guide slide lock button, and the curved handle will naturally return to the straight state.

Curve rulers currently on the market do not have the "guiding slide-linkage" structure of this special curve tool. The multifunctional curve drawing tool of the present invention can be injection molded at one time, has a compact structure, is convenient to install, and has good intuition and linkage.

The above-mentioned embodiments can be changed without departing from the scope of the present invention, so the above descriptions should be regarded as illustrative rather than limiting the protection scope of the patent application of the present invention.

Claims (7)

1. a Multi-function curve drawing instrument, is characterized in that including:

One body, by body upper casing and body lower casing stacked up and down and be formed by fixedly connecting, both are type all linearly; Be fixedly connected with by a locating dowel at both together sides, open the long through hole of same size at both another with side and form a complete slide guide slotted eye afterwards to make combination, at least have linear staff scale at body upper casing edge;

One to make of elastomeric material and at least to equal the crank of body length, and its two head end is all with connector, and this two connector is retainer ring;

One slide guide-the link gear that can move to link along slide guide slotted eye crank, this slide guide-link gear comprises the dog screw that wears slide guide slotted eye, locks button lock by a slide guide; The length of described slide guide slotted eye is at least 1/5 of crank length;

The fixing ring type connector of described crank one end is set in locating dowel, and the fixing ring type connector of the other end is set on slide guide-link gear;

Also be furnished with an Angle protractor, a head end perforate of this Angle protractor is also set in locating dowel, body is provided with right angle Angle protractor being defined in 90 degree of positions and limits pin; Angle protractor face has one group of transmission lines, and these group transmission lines are the number of degrees of preset value respectively with base;

Also be furnished with a level meter, this level meter is the sealed tube of the transparent material be arranged on body, has water and air in sealed tube.

2. Multi-function curve drawing instrument according to claim 1, is characterized in that: one group of described transmission lines are two, and these two transmissions lines with base are 30 degree and 45 degree respectively.

3. Multi-function curve drawing instrument according to claim 1, is characterized in that: described sealed tube is that acrylic material is made.

4. Multi-function curve drawing instrument according to claim 1, is characterized in that: described crank length is with equaling body workspace length, and this body workspace length is the spacing of locating dowel on it and dog screw.

5. Multi-function curve drawing instrument according to claim 1, is characterized in that: body upper casing and body lower casing are with wide same long.

6. Multi-function curve drawing instrument according to claim 1, is characterized in that: the outer plate surface around the guide runner bore region of body lower casing is offered for the concordant sleeping hugging in the inner of dog screw band cap head end.

7. Multi-function curve drawing instrument according to claim 1, is characterized in that: on body, nearly slide guide slotted eye place is added with trip bolt.