Multipurpose mold for mathematical drawing

Abstract

The utility model provides a multi-purpose mould for mathematical drawing, which relates to the technical field of drawing moulds and comprises a plate body, scale marks, a through groove, a moving component, a sliding block, a mounting hole, a marking pen, a sleeve, a fixing component, a mounting groove, an elastic sheet, a pointer, an extension plate and a clamping groove. The upper surface of the plate body is provided with a placement groove, the interior of the placement groove is provided with a second connecting piece connected with the first connecting piece, one end of the plate body is provided with a through hole, the interior of the through hole is provided with a rotating piece, and the interior of the rotating piece is provided with a center hole. And straight lines can be made through the scribing pens, the scribing pens can also be placed in the sleeve to make arcs, the number of the scribing pens is reduced, using and carrying convenience is improved, the two tools are combined, occupation of the drawing space can be reduced, influences on personnel drawing are reduced, the drawing efficiency is improved, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing molds, in particular to a multi-purpose mold for mathematical drawing. Background Art

[0002] In mathematics courses, it is often necessary to use various tools to draw mathematical diagrams. The two most common basic shapes include straight lines and circles. A variety of diagrams can be drawn through the combination of these two. However, due to the limitations of the tools, at least two tools are required to collaborate in the process of drawing mathematical diagrams. Constantly changing tools will not only reduce drawing efficiency, but temporarily unused tools will also take up more body space, making it difficult to meet usage needs. Utility Model Content

[0003] The utility model aims to provide a multi-purpose mold for mathematical drawing, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the multi-purpose mold for mathematical drawing includes a plate body, one side of the plate body is provided with a scale line indicating the real distance, the middle part of the plate body is provided with a through groove, the interior of the through groove is slidably connected with at least one group of moving components, the moving component includes a slider slidably connected with the plate body, the middle part of the slider is provided with a mounting hole, the interior of the mounting hole is provided with a sleeve for placing a marking pen, at least one group of fixed components is provided on the sleeve, the fixed component includes a mounting groove provided on the outer surface of the sleeve, the number of the mounting grooves is provided with at least two and they are arranged in sequence in the vertical direction, and the mounting A spring sheet is arranged inside the groove, and the upper end of the spring sheet is connected to the upper side of the mounting groove, the horizontal height of the lower end of the spring sheet is lower than the horizontal height of the upper end of the spring sheet, and the lower end of the spring sheet is inclined toward the inside of the sleeve, and an indicator needle matching the scale line is arranged on one side of the slider, and an extension plate is arranged on the other side of the slider, and a card slot is arranged on the lower surface of the extension plate, and a first connecting piece is arranged inside the card slot, and a placement slot is arranged on the upper surface of the plate body, and a second connecting piece connected to the first connecting piece is arranged inside the placement slot, and a through hole is opened at one end of the plate body, and a rotating piece is arranged inside the through hole, and a center hole is opened inside the rotating piece.

[0005] Preferably, it further comprises a top cover, and two elastic bands are symmetrically arranged on the outer surface of the top cover, and the lower ends of the two elastic bands are respectively fixedly connected to the two sides of the slider.

[0006] Preferably, a groove is provided at the lower end of the top cover, and the upper end of the marking pen is located inside the groove.

[0007] Preferably, the upper surface of the plate body is provided with slide grooves on both sides of the through groove, and the lower surface of the slider is symmetrically provided with guide blocks engaged with the slide grooves, and the guide blocks can only move along the slide grooves.

[0008] Preferably, a pressure plate is provided at the upper end of the rotating member, and an observation hole which is interpenetrating with the center hole on the rotating member is opened on the pressure plate.

[0009] The beneficial effects of the utility model are:

[0010] The device combines a ruler and a compass together, and can use a marking pen to make a straight line, and can also be placed in a sleeve to make an arc, thereby reducing the number of marking pens and improving the convenience of use and carrying. Combining the two tools can also reduce the occupation of drawing space, reduce the impact on personnel drawing, improve drawing efficiency, and have a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 It is a structural schematic diagram of a guide block in a specific embodiment of the utility model.

[0013] Figure 3 It is a cross-sectional view of a rotating member of a specific embodiment of the utility model.

[0014] Figure 4 It is a structural schematic diagram of a spring piece according to a specific embodiment of the utility model.

[0015] Figure 5 It is a structural schematic diagram of a sleeve of a specific embodiment of the utility model.

[0016] In the figure: 1. plate body; 2. scale line; 3. through groove; 4. slider; 5. sleeve; 6. marking pen; 7. spring; 8. indicator needle; 9. extension plate; 10. first connecting member; 11. second connecting member; 12. rotating member; 13. center hole; 14. top cover; 15. elastic band; 16. guide block; 17. pressure plate; 18. observation hole. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-5As shown, a multi-purpose mold for mathematical drawing includes a plate body 1, a scale line 2 indicating a real distance is arranged on one side of the plate body 1, a through slot 3 is opened in the middle of the plate body 1, at least one group of moving components is slidably connected inside the through slot 3, the moving component includes a slider 4 slidably connected to the plate body 1, a mounting hole is arranged in the middle of the slider 4, a sleeve 5 for placing a marking pen 6 is arranged inside the mounting hole, at least one group of fixing components is arranged on the sleeve 5, the fixing component includes a mounting slot opened on the outer surface of the sleeve 5, the number of the mounting slots is set to at least two and arranged in sequence in the vertical direction, a spring piece 7 is arranged inside the mounting slot, and the spring piece 7 The upper end is connected to the upper side of the mounting groove, the horizontal height of the lower end of the spring piece 7 is lower than the horizontal height of the upper end of the spring piece 7, and the lower end of the spring piece 7 is inclined toward the inside of the sleeve 5. An indicating needle 8 matching the scale line 2 is provided on one side of the slider 4, and an extension plate 9 is provided on the other side of the slider 4. A card slot is provided on the lower surface of the extension plate 9, and a first connecting member 10 is provided inside the card slot. A placement groove is provided on the upper surface of the plate body 1, and a second connecting member 11 interconnected with the first connecting member 10 is provided inside the placement groove. A through hole is opened at one end of the plate body 1, and a rotating member 12 is provided inside the through hole, and a center hole 13 is opened inside the rotating member 12.

[0019] The board body 1 is colorless and transparent plastic, which makes it easy to observe the content on the drawing through the board body 1. A slope is set on one side of the board body 1, and the scale line 2 is set on the slope to reduce the distance between the scale line 2 and the drawing, improve the alignment efficiency, and thus improve the accuracy and convenience of drawing.

[0020] The sleeve 5 and the spring piece 7 are both made of plastic and are integrally formed by injection molding. The marking pen 6 is cylindrical or polygonal. The maximum outer diameter of the marking pen 6 is slightly smaller than the inner diameter of the sleeve 5, so that the marking pen 6 can be inserted into the sleeve 5. When the marking pen 6 is inserted into the sleeve 5, the marking pen 6 will squeeze the spring piece 7 in the sleeve 5, and the spring piece 7 in the sleeve 5 will apply a reaction force to the outer surface of the marking pen 6 to clamp the marking pen 6. By arranging multiple spring pieces 7 at different heights and different orientations, the stability of clamping the marking pen 6 can be improved, so that the central axis of the lower end of the marking pen 6 and the central axis of the sleeve 5 are kept coincident as much as possible, reducing the swing range of the marking pen 6 in the sleeve 5, and ensuring the stability of drawing a circle on the drawing.

[0021] The line connecting the center point of the center hole 13 at the lower end of the rotating member 12 and the center point of the opening at the lower end of the sleeve 5 is projected on the drawing, and is parallel to the projection line of one side of the plate body 1 projected on the drawing. The center point of the center hole 13 on the rotating member 12 corresponds to the 0 scale line 2. The radius of the drawn circle can be determined by the position of the scale line 2 indicated by the indicator needle 8.

[0022] The first connecting member 10 is a magnet, and the second connecting member 11 is a metal plate. A magnetic attraction can be generated between the first connecting member 10 and the second connecting member 11. By connecting and fixing the first connecting member 10 and the second connecting member 11, the position of the slider 4 can be fixed to prevent the marking pen 6 from being displaced when the moving component rotates.

[0023] The rotating member 12 is rotatably connected to the plate body 1, and the lower end of the rotating member 12 slightly protrudes from the lower end surface of the plate body 1, and the height of the protruding part is not more than 0.5 mm. The rotating member 12 is made of stainless steel to improve the processing accuracy. The rotating member 12 can be split into two parts, including an upper and a lower part, which can be connected by a thread to facilitate the installation of the rotating member 12 on the plate body 1. When the plate body 1 is placed on the drawing to draw a circle, the rotating member 12 remains fixed, and the plate body 1 rotates around the rotating member 12, which is beneficial to reduce the friction between the plate body 1 and the drawing, and is convenient for controlling the movement of the plate body 1.

[0024] Each moving component can control the position of a marking pen 6. When at least two marking pens 6 are provided, at least two concentric circles can be drawn simultaneously, thereby improving drawing efficiency.

[0025] Working principle: Through the cooperation of the marking pen 6 and the scale line 2 on the side of the plate body 1, a figure with a straight line as the basic structure, such as a polygon, can be drawn. When it is necessary to draw an arc, first move the indicator needle 8 to the accurate position. At this position, the scale indicated by the indicator needle 8 is the radius of the drawn arc. When the indicator needle 8 moves to this position, the first connecting member 10, that is, the magnet, and the second connecting member 11, that is, the metal plate, complete the magnetic fixation. At this time, the position of the slider 4 is fixed, and then the marking pen 6 is inserted into the sleeve 5. The marking pen 6 can be fixed by the spring piece 7, and the marking end of the marking pen 6 is kept on the central axis of the sleeve 5. Then, the position of the center of the circle is found through the center hole 13 on the rotating member 12, and then the rotating member 12 is pressed. Then, the marking pen 6 is squeezed slightly by hand, and the plate body 1 is driven to rotate through the marking pen 6 to draw an arc on the drawing.

[0026] Furthermore, it also includes a top cover 14, and two elastic bands 15 are symmetrically arranged on the outer surface of the top cover 14. The lower ends of the two elastic bands 15 are fixedly connected to the two sides of the slider 4 respectively. When the lower end of the top cover 14 contacts the upper end surface of the sleeve 5, the elastic band 15 is in a stretched state. Therefore, the top cover 14 always has a tendency to move toward the sleeve 5. The downward pressure of the top cover 14 can replace the human hand to press down the marking pen 6. The human hand only needs to control the rotation of the board body 1, thereby reducing the influence of the human hand on the marking pen 6 and improving the accuracy of drawing.

[0027] Furthermore, a groove is provided at the lower end of the top cover 14, and the upper end of the marking pen 6 is located inside the groove. The groove is provided to improve the matching efficiency and stability between the marking pen 6 and the top cover 14, and reduce the relative displacement between the top cover 14 and the upper end of the marking pen 6.

[0028] Furthermore, the upper surface of the plate body 1 is provided with slide grooves on both sides of the through groove 3, and the lower surface of the slider 4 is symmetrically provided with guide blocks 16 that engage with the slide grooves, and the guide blocks 16 can only move along the slide grooves.

[0029] Furthermore, a pressure plate 17 is provided at the upper end of the rotating member 12, and an observation hole 18 is provided on the pressure plate 17 and is interconnected with the center hole 13 on the rotating member 12. The pressure plate 17 is circular, and the diameter of the upper end surface of the pressure plate 17 is larger than the diameter of the upper end of the rotating member 12, thereby increasing the contact area with human fingers and facilitating people to press the rotating member 12. The observation hole 18 can prevent the pressure plate 17 from blocking the center hole 13.

[0030] The device combines a ruler and a compass together, and a marking pen 6 can be used to make a straight line, and can also be placed in a sleeve 5 to make an arc, thereby reducing the number of marking pens 6 and improving the convenience of use and carrying. Combining the two tools can also reduce the occupation of drawing space, reduce the impact on personnel drawing, improve drawing efficiency, and have a good use effect.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A multi-purpose mold for mathematical drawing, characterized in that: The invention comprises a plate body (1), one side of the plate body (1) is provided with a scale line (2) indicating a real distance, a through slot (3) is provided in the middle of the plate body (1), at least one group of moving components is slidably connected inside the through slot (3), the moving components comprises a slider (4) slidably connected to the plate body (1), a mounting hole is provided in the middle of the slider (4), a sleeve (5) for placing a marking pen (6) is provided inside the mounting hole, at least one group of fixing components is provided on the sleeve (5), the fixing components comprises a mounting slot provided on the outer surface of the sleeve (5), the number of the mounting slots is provided with at least two and they are arranged in sequence in the vertical direction, a spring piece (7) is provided inside the mounting slot, the upper end of the spring piece (7) is connected to the upper side of the mounting slot, and the spring piece (7) is connected to the upper side of the mounting slot. The lower end of the spring sheet (7) is lower than the upper end of the spring sheet (7), the lower end of the spring sheet (7) is inclined toward the inside of the sleeve (5), one side of the slider (4) is provided with an indicating needle (8) matched with the scale line (2), the other side of the slider (4) is provided with an extension plate (9), the lower surface of the extension plate (9) is provided with a slot, the inside of the slot is provided with a first connecting member (10), the upper surface of the plate body (1) is provided with a placement groove, the inside of the placement groove is provided with a second connecting member (11) interconnected with the first connecting member (10), one end of the plate body (1) is provided with a through hole, the inside of the through hole is provided with a rotating member (12), and the inside of the rotating member (12) is provided with a center hole (13).

2. The multi-purpose mold for mathematical drawing according to claim 1, characterized in that: It also comprises a top cover (14), the outer surface of which is symmetrically provided with two elastic bands (15), the lower ends of the two elastic bands (15) being respectively fixedly connected to the two sides of the slider (4).

3. The multi-purpose mold for mathematical drawing according to claim 2 is characterized in that: The lower end of the top cover (14) is provided with a groove, and the upper end of the marking pen (6) is located inside the groove.

4. The multi-purpose mold for mathematical drawing according to claim 2 is characterized in that: The upper surface of the plate body (1) is provided with sliding grooves on both sides of the through groove (3), and the lower surface of the slider (4) is symmetrically provided with guide blocks (16) that engage with the sliding grooves, and the guide blocks (16) can only move along the sliding grooves.

5. The multi-purpose mold for mathematical drawing according to any one of claims 1 to 4, characterized in that: A pressure plate (17) is provided at the upper end of the rotating member (12), and an observation hole (18) which is interpenetrating with the central hole (13) on the rotating member (12) is provided on the pressure plate (17).

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