Drawing device

Abstract

The utility model discloses a plotter, and particularly relates to the technical field of higher mathematics, the plotter comprises a bottom ruler plate, the top of the bottom ruler plate is respectively provided with a limiting sliding groove and a movable sliding groove, the two sides of the bottom of the top ruler plate are respectively and fixedly connected with a limiting sliding column and a movable sliding column, and the side face of the limiting sliding column is connected to the inner wall of the limiting sliding groove in a sliding mode. Fixing rings are arranged on the inner walls of the bottom ruler plate and the top ruler plate, rotating grooves are formed in the inner walls of one ends of the top ruler plate and the bottom ruler plate, rotating shafts movably sleeve the inner walls of the rotating grooves, lower sliding blocks are fixedly connected to the bottom ends of the fixing rings, and upper sliding blocks are fixedly connected to the top ends of the fixing rings; a lower sliding groove is formed in the inner wall of the bottom ruler plate, and an upper sliding groove is formed in the inner wall of the top ruler plate, so that the problems that a graph formed by a straight line and an arc needs to be drawn by virtue of two plotters at the same time, multiple plotters need to be prepared, the operation is relatively tedious, and the drawing efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the field of advanced mathematics, in particular to a plotter. Background Art

[0002] With the rapid development of science and technology and the widespread application of computer technology, mathematical ideas, methods and techniques are playing an increasingly important role in the fields of natural sciences, engineering technology, etc., and have penetrated into various fields of economics, management and social sciences. This also puts higher demands on the teaching of advanced mathematics.

[0003] However, existing advanced mathematics plotters can generally only perform single operations, such as drawing straight lines or circles. For figures composed of straight lines and arcs, two plotters need to be used for drawing operations at the same time. Not only do you need to prepare multiple plotters, but the operation is also cumbersome and the drawing efficiency is average. Utility Model Content

[0004] The purpose of the utility model is to provide a plotter to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a plotter, comprising:

[0006] A bottom scale plate, wherein a limit slide groove and a movable slide groove are respectively provided on the top of the bottom scale plate;

[0007] A top scale plate, wherein both sides of the bottom of the top scale plate are respectively fixedly connected with a limit sliding column and a movable sliding column, the side surface of the limit sliding column is slidably connected to the inner wall of the limit sliding groove, the side surface of the movable sliding column is slidably connected to the inner wall of the movable sliding groove, and the inner walls of the bottom scale plate and the top scale plate are both provided with fixing rings.

[0008] Preferably, the inner walls of one end of the top scale plate and the bottom scale plate are provided with a rotation groove, and the inner wall of the rotation groove is movably sleeved with a rotating shaft.

[0009] Preferably, the bottom end of the fixing ring is fixedly connected with a lower slider, the top end of the fixing ring is fixedly connected with an upper slider, the inner wall of the bottom scale plate is provided with a lower sliding groove, the inner wall of the top scale plate is provided with an upper sliding groove, the side of the lower slider is slidably connected to the inner wall of the lower sliding groove, and the side of the upper slider is slidably connected to the inner wall of the upper sliding groove. The inner wall of the top scale plate away from the bottom scale plate is provided with a placement groove, and the side of the upper slider is slidably connected to the inner wall of the placement groove.

[0010] Preferably, one end of the bottom scale plate is fixedly connected to an auxiliary slide rail, a through groove is opened on the top of the bottom scale plate, the two through grooves are respectively connected to the limiting slide groove and the movable slide groove, and the side sliding connection of the movable slide column is respectively slidably connected to the auxiliary slide rail and the inner wall of the through groove.

[0011] Preferably, a fixing handle is fixedly connected to the top of the fixing ring.

[0012] Preferably, a magnetic plate is movably bonded to the bottom of the bottom scale plate.

[0013] Preferably, the upper slider and the lower slider are both arranged in a cross shape.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. By providing a top scale plate and a bottom scale plate, the top scale plate can be stretched and rotated with the cooperation of the limit slide column and the movable slide column, so as to achieve the purpose of drawing longer straight lines and arcs. Moreover, since one end of the top scale plate fixing the movable slide column is longer, when the top scale plate rotates 90 degrees, the longer end of the top scale plate fits on the top of the bottom scale plate, so that right-angle lines and obtuse lines greater than 90 degrees can be directly drawn through the upper and lower slide blocks at the top of the fixed ring;

[0016] 2. By providing a rotating shaft, by inserting the rotating shaft into the rotating grooves on the right ends of the top scale plate and the bottom scale plate, and then drawing a circle with the rotating shaft as the center, the application range of the device is further expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the rotation of the structure of the top plate of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the structure at position A in the top scale plate of the utility model.

[0022] Description of reference numerals:

[0023] 1. Fixed ring; 2. Upper slider; 3. Top plate; 4. Auxiliary slide rail; 5. Fixed handle; 6. Bottom plate; 7. Limit slide groove; 8. Limit slide column; 9. Lower slider; 10. Movable slide groove; 11. Adhesive magnetic plate; 12. Movable slide column; 13. Upper slide groove; 14. Lower slide groove; 15. Through groove; 16. Rotating shaft. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 4 A plotter as shown, comprising:

[0026] The bottom plate 6 has a limit slide 7 and a movable slide 10 respectively formed on the top of the bottom plate 6;

[0027] The top scale plate 3 has a limit slide column 8 and a movable slide column 12 fixedly connected to both sides of the bottom of the top scale plate 3. The side of the limit slide column 8 is slidably connected to the inner wall of the limit slide groove 7. The side of the movable slide column 12 is slidably connected to the inner wall of the movable slide groove 10. The inner walls of the bottom scale plate 6 and the top scale plate 3 are both provided with a fixing ring 1, so that the top scale plate 3 can move more flexibly, thereby increasing the application range of the device.

[0028] Furthermore, the inner walls of one end of the top scale plate 3 and the bottom scale plate 6 are provided with a rotation groove, and the inner wall of the rotation groove is movably sleeved with a rotating shaft 16, which allows the device to draw a circle.

[0029] Furthermore, a lower slider 9 is fixedly connected to the bottom end of the fixed ring 1, an upper slider 2 is fixedly connected to the top end of the fixed ring 1, a lower sliding groove 14 is opened on the inner wall of the bottom scale plate 6, an upper sliding groove 13 is opened on the inner wall of the top scale plate 3, the side of the lower slider 9 is slidably connected to the inner wall of the lower sliding groove 14, the side of the upper slider 2 is slidably connected to the inner wall of the upper sliding groove 13, a placement groove is opened on the inner wall of the top scale plate 3 away from the bottom scale plate 6, and the side of the upper slider 2 is slidably connected to the inner wall of the placement groove, thereby increasing the stability of the fixed ring 1 when moving.

[0030] Furthermore, one end of the bottom scale plate 6 is fixedly connected to the auxiliary slide rail 4, and a through groove 15 is opened on the top of the bottom scale plate 6. The two through grooves 15 are respectively connected to the limiting slide groove 7 and the movable slide groove 10, and the side sliding connection of the movable slide column 12 is respectively slidably connected to the auxiliary slide rail 4 and the inner wall of the through groove 15, thereby increasing the stability of the device when drawing an arc.

[0031] Furthermore, a fixed handle 5 is fixedly connected to the top of the fixed ring 1, which facilitates the movement of the chalk and prevents the chalk from being directly drawn. When the chalk is subjected to tension and fixation, there is a possibility that the chalk may break from the fixed end due to uneven force.

[0032] Furthermore, a magnetic plate 11 is movably bonded to the bottom of the bottom scale plate 6 to facilitate storage operations of the device.

[0033] Furthermore, the upper slider 2 and the lower slider 9 are both cross-shaped, so that the fixing ring 1 is always in sliding connection with the top scale plate 3 and the bottom scale plate 6.

[0034] Through the above technical solution:

[0035] When in use, when only a straight line needs to be drawn, the chalk is inserted into the fixed ring 1, and then the fixed ring 1 is driven by the fixed handle 5 to perform the drawing operation. During the movement of the fixed ring 1, the upper slider 2 and the lower slider 9 on the side of the fixed ring 1 will slide along the upper slide groove 13 of the inner wall of the top scale plate 3 and the lower slide groove 14 of the inner wall of the bottom scale plate 6 respectively. When the straight line is drawn to be longer, the fixed handle 5 drives the fixed ring 1 to slide to the rightmost end of the top scale plate 3 and the bottom scale plate 6. At this time, the fixed handle 5 can be directly pulled to move. Then the limiting slide post 8 and the movable slide post 12 at the bottom of the top scale plate 3 will be slidably connected to the inner walls of the limiting slide groove 7 and the movable slide groove 10 at the top of the top scale plate 3 respectively, so that the length of the drawn straight line can be extended through the movable top scale plate 3.

[0036] When it is necessary to draw an arc, first pull the top plate 3 to the right until the side of the limit slide 8 abuts against the rightmost end of the limit slide groove 7. At this time, the movable slide 12 is separated from the movable slide groove 10, and then the fixed ring 1 is pulled into the top plate 3 through the fixed handle 5. At this time, the lower slider 9 at the bottom end of the fixed ring 1 is separated from the lower slide groove 14 on the inner wall of the bottom plate 6, and the upper slider 2 at the top of the fixed ring 1 slides into the upper slide groove 13 on the inner wall of the top plate 3, and the fixed ring 1 leaves the range of the auxiliary slide rail 4, and then the top plate 3 is limited. The slide post 8 is the center of the circle, and the user can draw the arc by pulling the top scale plate 3 through the fixed handle 5 and the fixed ring 1 to rotate. At this time, the slide post 12 slides into the slide rail 4 and the through groove 15 along the rotation trajectory. In addition, since one end of the movable slide post 12 fixed to the top scale plate 3 is longer, when the top scale plate 3 rotates ninety degrees, the longer end of the top scale plate 3 fits on the top of the bottom scale plate 6, so that right-angle lines and obtuse lines greater than ninety degrees can be directly drawn through the upper slider 2 and the lower slider 9 at the top of the fixed ring 1.

[0037] When it is necessary to draw a circle, first reset the top scale plate 3, and then insert the shaft 16 into the rotating groove on the right end of the top scale plate 3 and the bottom scale plate 6. At this time, press the shaft 16 and the blackboard, and then pull the fixing handle 5, you can draw a circle with the shaft 16 as the center. At this time, the top scale plate 3 and the bottom scale plate 6 rotate together with the fixing ring 1, and the diameter of the shaft 16 is larger than the diameter of the inner wall of the track of the top scale plate 3 and the bottom scale plate 6, so that the inserted shaft 16 will not move along the inner wall of the track of the top scale plate 3 and the bottom scale plate 6. When it is not needed, since the velvet adhesive material is installed on the bottom surface of the bottom scale plate 6, the bonding magnetic plate 11 can be attached to the velvet adhesive material on the bottom surface of the bottom scale plate 6 through one side of the adhesive hook, so that the bonding magnetic plate 11 can be attached to the bottom of the bottom scale plate 6, and then the bonding magnetic plate 11 can be magnetically placed on the blackboard.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plotter, characterized in that: include: A bottom ruler plate (6), wherein a limit slide groove (7) and a movable slide groove (10) are respectively provided on the top of the bottom ruler plate (6); A top scale plate (3), the bottom sides of which are respectively fixedly connected with a limit slide column (8) and a movable slide column (12), the side of which is slidably connected to the inner wall of the limit slide groove (7), the side of which is slidably connected to the inner wall of the movable slide groove (10), and the inner walls of the bottom scale plate (6) and the top scale plate (3) are both provided with a fixing ring (1).

2. A plotter according to claim 1, characterized in that: The inner walls of one end of the top scale plate (3) and the bottom scale plate (6) are both provided with a rotation groove, and the inner wall of the rotation groove is movably sleeved with a rotation shaft (16).

3. A plotter according to claim 1, characterized in that: The bottom end of the fixed ring (1) is fixedly connected to a lower slider (9), the top end of the fixed ring (1) is fixedly connected to an upper slider (2), the inner wall of the bottom scale plate (6) is provided with a lower slide groove (14), the inner wall of the top scale plate (3) is provided with an upper slide groove (13), the side of the lower slider (9) is slidably connected to the inner wall of the lower slide groove (14), the side of the upper slider (2) is slidably connected to the inner wall of the upper slide groove (13), the inner wall of the top scale plate (3) away from the bottom scale plate (6) is provided with a placement groove, and the side of the upper slider (2) is slidably connected to the inner wall of the placement groove.

4. A plotter according to claim 1, characterized in that: One end of the bottom ruler plate (6) is fixedly connected to an auxiliary slide rail (4), and a through groove (15) is provided on the top of the bottom ruler plate (6). The two through grooves (15) are respectively connected to the limiting slide groove (7) and the movable slide groove (10), and the side sliding connection of the movable slide column (12) is respectively slidably connected to the auxiliary slide rail (4) and the inner wall of the through groove (15).

5. A plotter according to claim 1, characterized in that: A fixing handle (5) is fixedly connected to the top of the fixing ring (1).

6. A plotter according to claim 1, characterized in that: The bottom of the bottom scale plate (6) is movably bonded with a bonding magnetic attraction plate (11).

7. A plotter according to claim 3, characterized in that: The upper slider (2) and the lower slider (9) are both arranged in a cross shape.

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