阅读说明：本技术 一种复合型多功能安全圆规 (Composite multifunctional safety compasses ) 是由 张雨林 郭宇斌 俞乐平 于 2019-10-14 设计创作，主要内容包括：发明涉及测量绘图工具技术领域,特别涉及一种复合型多功能安全圆规,包括：特殊型外壳、移动游标、加压杆、插销、旋转轴承和支承座；带有防滑胶的支承座代替了传统圆规的转轴和针尖,使产品的危险系数降到最低且不会对纸张产生破坏。旋转轴承的加入提高了绘图的流畅性及用户体验,其稳定性和精度也大大提高。特殊型外壳整合了多种测量文具,使学生使用更为方便。移动游标和加压杆的设计,使绘图尺寸无最小单位限制,可在任意位置锁定画圆。笔尖插孔直径和市场大部分笔尖直径相似,无论铅笔还是水笔都可以嵌入并绘制不同颜色的圆。本发明连接结构简单,单元件少,减少了传统圆规中的细小连接零件,以避免儿童误食。(The invention relates to the technical field of measuring and drawing tools, in particular to a composite type multifunctional safe compasses, which comprises: the special type casing, move the vernier, pressurize the pole, socket, swivel bearing and bearing; the supporting seat with the anti-skid glue replaces a rotating shaft and a needle tip of the traditional compasses, so that the danger coefficient of the product is reduced to the minimum and the paper cannot be damaged. Due to the addition of the rotary bearing, the drawing smoothness and user experience are improved, and the stability and precision are also greatly improved. The special shell integrates various measuring stationeries, so that students can use the multifunctional measuring device more conveniently. The design of moving cursor and pressure bar makes the drawing size have no minimum unit limit, and can lock the drawing circle at any position. The diameter of the pen point inserting hole is similar to that of most pen points in the market, and circles of different colors can be embedded and drawn in both a pencil and a water pen. The compasses have the advantages of simple connecting structure and few unit parts, and reduce tiny connecting parts in the traditional compasses so as to avoid children from eating by mistake.)

1. The utility model provides a compound many functional safety compasses which characterized in that includes: the device comprises a special shell (1), a movable vernier (2), a pressurizing rod (3), a bolt (4), a rotary bearing (5) and a supporting seat (6);

the special shell (1) comprises a vernier slide rail (11), a pressure bar groove (12), a mortise (13), a limiting square table (14), a limiting round table (15), a bearing hole (16) and a measuring unit module (17);

the movable vernier (2) comprises a metal sliding block (21), a pen point jack (22) and an elastic anti-slip rubber strip (23), wherein the pen point jack (22) is arranged in the center of the metal sliding block (21), and the hole is conical;

the pressurizing rod (3) comprises a tenon (31), a rod body (32) and a square holding table (33), wherein the square holding table (33) is arranged in the middle of the top of the rod body (32), and a certain inclined plane is designed below the square holding table (33);

the supporting seat (6) comprises a base (61), a shaft body (62), an arc pressing platform (63) and black dots (64), wherein the base (61) is embedded in the bottom of the shaft body (62), and the arc pressing platform is embedded in the top of the shaft body (63).

2. The composite type multifunctional safety compass according to claim 1, characterized in that: the rotary bearing (5) and the special shell (1) are in interference fit, the rotary bearing (5) and the supporting seat (6) are also in interference fit, so that the rotary bearing and the supporting seat are connected tightly, the supporting seat (6) is made of transparent materials, the base (61) is coated with anti-slip glue, the stability is improved, the black round point (64) is located at the circle center of the arc pressing table (63), and the circle center position is located during drawing.

3. The composite type multifunctional safety compass according to claim 1, characterized in that: metal sliding block (21) are placed in vernier slide rail (11), and the diameter size of nib jack (22) is close with nib diameter size on the market at present, conveniently agree with, and metal sliding block (21) both ends are stained with elasticity anti-skidding adhesive tape (23), increase frictional force when receiving pressure, improve stability.

4. The composite type multifunctional safety compass according to claim 1, characterized in that: the bottom of the rod body (32) of the pressurizing rod (3) is also adhered with an elastic anti-slip rubber strip (23), when the pressurizing rod (3) is pressed down, the tenon (31) and the mortise (13) are correspondingly matched and fixed, and the function of limiting the moving vernier (2) can be achieved; the bolt (4) is connected by a hinge and limited on the limiting round table (15), when the vernier (2) needs to be moved in a sliding mode, the tenon (31) is separated from the mortise (13), the square holding table (33) is grasped, the pressure rod (3) is lifted, the rotating pad of the bolt (4) is placed below the square holding table (33), and the pressure rod is prevented from falling; and the limit square table (14) limits the pressure rod (3) from disengaging from the pressure rod groove (12).

5. The composite type multifunctional safety compass according to claim 1, characterized in that: the special housing (1) itself is made of a transparent material.

6. The composite type multifunctional safety compass according to claim 1, characterized in that: the scales and numerical symbols of the measuring unit module (17) are carved on the corresponding positions on the surface or in the special shell (1).

7. The composite type multifunctional safety compass according to claim 1, characterized in that: the measuring unit module (17) comprises a protractor module (171), a ruler module (172), a special angle module (173) and a compass scale module (174); in order to attract students in the lower age stage to use, the measuring unit modules are respectively designed in different areas of the special-shaped shell (1), so that the special-shaped shell (1) is similar to an animal in shape.

8. The composite type multifunctional safety compass according to claim 7, characterized in that: the compass scale module (174) is carved above the vernier slide rail (11), and an arrow is carved on the surface of the metal slide block (21) and points to the compass scale module (174).

9. The drawing method of the composite multifunctional safe compasses is characterized in that the composite multifunctional safe compasses are adopted for drawing, and the drawing method comprises the following using methods:

a. simple measurement mapping is performed on the data by using a measurement unit module (17): 1. measuring and drawing by using a protractor module (171); 2. measuring and drawing by using a ruler module (172); 3. measuring and drawing by using a special angle module (173);

b. and (3) drawing a circle: 1. the square holding table (33) is grasped to lift the pressurizing rod (3), and the rotating pad of the bolt (4) is arranged below the square holding table (33) to prevent the pressurizing rod from falling; 2. moving the metal slide block (21) to enable an arrow on the surface of the metal slide block to point to a required scale on the compass scale module (174); 3. the bolt (4) is removed, so that the pressurizing rod (3) is pressed downwards, the tenon (31) is matched and fixed with the mortise (13), and the movement of the metal sliding block (21) is limited; 4. the circle center position is positioned and aligned through the black round point (64); 5. inserting the used pen point into the pen point inserting hole (22), and pressing the circular arc pressing platform (63) by hand to draw a circle;

c. measuring the radius of the arc: 1. firstly, positioning a black dot (64) on a middle vertical line of a circular arc string, wherein the placement position is positioned at the inner side of the circular arc; 2. the square holding table (33) is grasped to lift the pressurizing rod (3), and the rotating pad of the bolt (4) is arranged below the square holding table (33) to prevent the pressurizing rod from falling; 3. moving the metal slider (21) to make the pen point jack (22) align with the end point of one end of the circular arc; 4. inserting a pencil into the nib insertion hole (22), slightly rotating the special shell (1), and observing whether the handwriting of the pencil is overlapped with the circular arc; 5. if the marks do not coincide with each other, the position of the black dot (64) on the perpendicular bisector is moved, and the steps 2 and 3 are repeated until the tracks coincide with each other, and at the moment, the scale corresponding to the moving metal sliding block (21) is the radius of the arc.

Technical Field

The invention relates to the technical field of measuring and drawing tools, in particular to a composite multifunctional safety device.

Background

At present, the mathematics education of China is in the leading position of the world. This phenomenon makes students in our country come into contact with many mathematically used drawing tools in mathematical courses while they are still relatively young. Among these tools, compasses are common, but the design of needle points and the like also makes it the most accidental tool. For compasses on the market, the biggest shortcoming lies in that the part is many and little, and the structure is complicated, leads to children to eat by mistake easily.

In addition, in the using process, the sharp parts of the common compasses not only threaten the safety of users, but also have larger influence on writing and paper, and the sharp needle points are easy to penetrate through books, so that the writing of the books or the roll surface of the books are influenced. When a single layer of paper is used for drawing, the needle point cannot be stable, and the paper is damaged, the table top is scratched and the like. Most importantly, the existing common compasses can only draw circles by using pencil leads and cannot draw circles in a colorful mode, or drawing brushes need to be disassembled and assembled and fixed by using screws, so that the operation is very complicated, inconvenient and low in precision.

In addition, due to the increase of the mathematics courses, the trouble of students is increased by a plurality of stationery used for measurement, the stationery is frequently lost, and the arrangement is troublesome.

Disclosure of Invention

In order to solve the problems of the prior compasses in the market in the background technologies of insufficient flexibility, low precision, potential safety hazards and the like, the composite multifunctional safety compasses are provided, have simple and easy structure, are safe and reliable, have simple and convenient drawing method and are convenient for the daily use of students in the low ages such as middle and primary schools and the like.

The technical purpose of the invention is realized by the following technical scheme:

a composite multi-functional safety compass, comprising: the special type casing, move the vernier, pressurize the pole, socket, swivel bearing and bearing; the special shell comprises a vernier slide rail, a pressure bar groove, a mortise, a limiting square table, a limiting round table, a bearing hole and a measuring unit module. The movable vernier comprises a metal sliding block, a pen point inserting hole and an elastic anti-slip rubber strip, wherein the metal sliding block is arranged in the vernier sliding rail. The nib jack is arranged in the center of the metal sliding block, and the hole is conical. The pressure bar comprises a tenon, a bar body and a square platform for holding. The square holding table is arranged in the middle of the top of the rod body. The supporting seat comprises a base, a shaft body, an arc pressing table and black dots. The base inlays in the axis body bottom, and the platform inlays in the axis body top is pressed to the circular arc. The measuring unit module comprises a protractor module, a ruler module, a special angle module and a compass scale module. The measuring unit modules are respectively designed in different areas of the special shell, so that the shape of the special shell is similar to that of an animal, and the special shell can attract students of low ages to use. The bolt adopts hinged joint, prescribes a limit to on the round platform, when needs slip removal travel standard, will separate tenon and mortise earlier, grasps the square platform of holding again and lifts the pressure bar to place the rotatory pad of bolt in the square platform below of holding, prevent that the pressure bar from weighing down. And the limit square table limits the pressure rod from being separated from the pressure rod groove.

As preferred, the supporting seat adopts transparent material, and the base scribbles the non-slip rubber, improves stability, and black dot is located the circular arc and presses a platform centre of a circle department, conveniently fixes a position centre of a circle position during drawing.

Preferably, the special-shaped housing is made of transparent material, and the scales and numerical symbols of the measuring unit module are marked on the corresponding positions on the surface or inside the special-shaped housing, so that the measuring unit module is convenient to use and observe.

Preferably, the diameter of the pen point insertion hole is close to that of a pen point on the market, the fitting degree is enhanced, the painting brush is not easy to separate, and the precision is improved.

Preferably, the metal slider is made of metal with high hardness, so that the wear resistance is improved. And elastic anti-slip rubber strips are adhered to the two ends of the metal sliding block and the bottom of the rod body of the pressurizing rod, so that the friction force is increased when the metal sliding block and the pressurizing rod are pressed.

Preferably, the compass scale module is carved above the vernier slide rail, and an arrow is carved on the surface of the metal slide block and points to the compass scale module, so that reading observation is facilitated.

Preferably, the rotary bearing and the special shell are in interference fit, and the rotary bearing and the supporting seat are also in interference fit, so that the rotary bearing and the supporting seat are connected tightly.

As preferred, the design of the below of the square platform of holding tightly has certain inclined plane, makes things convenient for the embedding of bolt, improves user experience.

In conclusion, the invention has the following excellent characteristics: (1) the supporting seat with the anti-skid glue replaces a rotating shaft and a needle tip of the traditional compasses, so that the danger coefficient of the product is reduced to the minimum and the paper cannot be damaged. (2) Due to the addition of the rotary bearing, the drawing smoothness and user experience are improved, and the stability and precision are also greatly improved. (3) The special shell integrates various measuring stationeries, so that students can use the multifunctional measuring device more conveniently. (4) The design of the movable vernier and the pressure rod ensures that the drawing size is not limited by the minimum unit, the drawing circle can be locked at any position, and the operation is simple and convenient. (5) The diameter of the pen point inserting hole is similar to that of most pen points in the market, and the pen point inserting hole can be embedded into a pencil or a fountain pen to draw circles with different colors. (6) The compasses have the advantages of simple connecting structure and few unit parts, and reduce small connecting parts in the traditional compasses so as to avoid children from eating by mistake, improve the safety and reduce the production cost.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of a partial structure of a cursor slide rail, a pressing bar groove and the like according to an embodiment of the invention.

Fig. 4 is a schematic structural diagram of a measurement unit module according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a supporting seat according to an embodiment of the present invention.

Fig. 6 is a schematic view of a pressing rod according to an embodiment of the present invention.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

Example 1:

referring to fig. 1, 2 and 3, the present invention provides a composite multifunctional safety compass, which comprises: the special type casing 1, move vernier 2, pressure rod 3, bolt 4, swivel bearing 5 and bearing 6.

The special shell 1 comprises a vernier slide rail 11, a pressure bar groove 12, a mortise 13, a limiting square table 14, a limiting round table 15, a bearing hole 16 and a measuring unit module 17.

The mobile cursor 2 comprises a metal slider 21, a nib insertion hole 22 and an elastic non-slip rubber strip 23. The nib insertion hole 22 is arranged in the center of the metal sliding block 21, and the shape of the hole is conical.

The pressing bar 3 includes a tenon 31, a bar body 32, and a square grasping table 33. The gripping square platform 33 is arranged in the middle of the top of the rod body 32, and a certain inclined plane is designed below the gripping square platform 33.

The support base 6 includes a base 61, a shaft 62, an arc pressing table 63, and black dots 64. The base 61 is embedded in the bottom of the shaft body 62, and the arc pressing table is embedded in the top 63 of the shaft body.

The rotary bearing 5 and the special shell 1 are in interference fit, and the rotary bearing 5 and the supporting seat 6 are also in interference fit, so that the rotary bearing and the supporting seat are connected tightly. The supporting seat 6 is made of transparent materials, the base 61 is coated with anti-slip glue, stability is improved, the black round points 64 are located at the circle center of the arc pressing platform 63, and the circle center position is located during drawing.

The metal sliding block 21 is placed in the cursor sliding rail 11, and the diameter of the pen point insertion hole 22 is similar to that of the pen point on the market at present, so that the metal sliding block is convenient to fit. Elastic anti-slip rubber strips 23 are adhered to two ends of the metal sliding block 21, so that friction force is increased when pressure is applied, and stability is improved.

The bottom of the rod body 32 of the pressure rod 3 is also adhered with an elastic anti-slip rubber strip 23, when the pressure rod 3 is pressed down, the tenon 31 and the mortise 13 are correspondingly matched and fixed, and the function of limiting the movement of the vernier 2 can be achieved. Bolt 4 adopts hinged joint, inject 15 on spacing round platform, when needs slip removal vernier 2, earlier separates tenon 31 and mortise 13, grasps the square platform of holding in the palm again 33 and lifts up pressure bar 3 to place the rotatory pad of bolt 4 in the square platform of holding in the palm below 33, prevent that the pressure bar from weighing down. And the regulating square table 14 regulates the release of the pressing rod 3 from the pressing rod groove 12.

The special housing 1 itself is made of a transparent material. The scales and numerical symbols of the measuring unit module 17 are marked on the corresponding positions on the surface or inside the special shell 1. The measuring unit module 17 includes a protractor module 171, a ruler module 172, a special angle module 173, and a compass scale module 174. In order to attract students in the lower age, the measuring unit modules are respectively designed in different areas of the special-shaped shell 1, so that the special-shaped shell 1 is similar to an animal in shape.

The compass scale module 174 is carved on the top of the cursor slide rail 11. And an arrow is drawn on the surface of the metal slide block 21 and points to the compass calibration module 174.

The composite multifunctional safe compasses are used for drawing, and the use method comprises the following steps:

a. a simple measurement mapping is performed on the data with the measurement unit module 17: 1. measuring and drawing by using the protractor module 171; 2. measuring and drawing by using the ruler module 172; 3. the measurement mapping is performed using a special angle module 173.

b. And (3) drawing a circle: 1. the pressure bar 3 is lifted by grasping the square grasping table 33, and the rotary pad of the latch 4 is placed below the square grasping table 33 to prevent the pressure bar from falling. 2. The metal slide block 21 is moved to make the arrow on the surface point to the required scale on the compass scale module 174. 3. The bolt 4 is removed to press the pressing rod 3 downward, and the tenon 31 is engaged with and fixed to the mortise 13 so as to restrict the movement of the metal slider 21. 4. The center of the circle is located and aligned by the black dots 64. 5. The nib of the pen used by the user is inserted into the nib insertion hole 22, and the user presses the arc pressing table 63 by hand to draw a circle.

c. Measuring the radius of the arc: 1. the black dots 64 are positioned on the midperpendicular of the arc chord, and the placement position is positioned at the inner side of the arc. 2. The pressure bar 3 is lifted by grasping the square grasping table 33, and the rotary pad of the latch 4 is placed below the square grasping table 33 to prevent the pressure bar from falling. 3. The metal slider 21 is moved so that the tip insertion hole 22 thereof is aligned with the end point of one end of the circular arc. 4. And inserting a pencil into the nib insertion hole 22, slightly rotating the special shell 1, and observing whether the handwriting of the pencil is overlapped with the circular arc. 5. If the positions of the black dots 64 on the perpendicular bisector are not coincident, the step 2 and the step 3 are repeated until the tracks are coincident, and the scale corresponding to the moving metal sliding block 21 is the radius of the arc.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.