Plotting instrument for function teaching

Abstract

The utility model discloses a plotter for function teaching, which relates to the technical field of plotting instruments and comprises a control block inserted in an indication connecting shaft. The ruler assembly is of a split type design, the functional auxiliary ruler can rotate at one end of the straight line main ruler, straight line drawing can be carried out, meanwhile, fold lines with corresponding angles can be directly drawn through the edge positions of the functional auxiliary ruler and the straight line main ruler after the included angle between the functional auxiliary ruler and the straight line main ruler is changed, and the ruler assembly is convenient to use and high in practicability. The adjusting and controlling assembly can lock and adjust the angle between the functional auxiliary ruler and the straight line main ruler, and the problems that the functions of an existing plotter are dispersed and cannot be integrated, a straight ruler cannot draw the angle, an angle ruler cannot directly draw two straight lines with angles, and the plotting operation is tedious are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plotting instruments, and more specifically, particularly relates to a plotter for function teaching. Background Art

[0002] In the teaching of functions in secondary vocational mathematics, it is usually necessary to draw function graphs and explain on the blackboard to coordinate teaching, so it is necessary to use corresponding drawing instruments for drawing. Currently, common plotters are various rulers, such as rulers and angle rulers.

[0003] When using existing plotters, their functions are scattered and cannot be integrated. For example, a ruler cannot draw angles, and an angle ruler cannot directly draw two straight lines with angles. Specifically, after drawing a straight line with a ruler, marking the corresponding position with an angle ruler, and connecting the changed point with the corresponding position of the line segment with a ruler, the drawing can be completed. It is relatively cumbersome, troublesome to use, and has poor practicality. Utility Model Content

[0004] The disclosed embodiment relates to a plotter for function teaching, which has a ruler assembly and a regulating assembly, wherein the ruler assembly is of a split design, and the functional secondary ruler can rotate at one end of the linear main ruler, so that when the angle between the functional secondary ruler and the linear main ruler is 180 degrees, a straight line can be drawn, and short-length straight lines can also be drawn only by the functional secondary ruler or the linear main ruler. After changing the angle between the functional secondary ruler and the linear main ruler, a broken line of a corresponding angle can be directly drawn through the edge positions of the functional secondary ruler and the linear main ruler, which is easy to use, and the regulating assembly can lock and adjust the angle between the functional secondary ruler and the linear main ruler, which is easy and flexible to use, simplifies the drawing operation, and has strong flexibility, adaptability and practicality.

[0005] In a first aspect of the present disclosure, there is provided a plotter for function teaching, comprising a ruler assembly, the ruler assembly comprising a linear main scale, a functional secondary scale and an indicating connecting shaft, the indicating connecting shaft being fixedly mounted at one end of the linear main scale, and the functional secondary scale being rotatably connected to the outside of the indicating connecting shaft; and a regulating assembly, the regulating assembly comprising a control block, an adjusting worm and a positioning worm wheel, the control block being plugged into the inside of the indicating connecting shaft, the adjusting worm being rotatably connected to the inside of the functional secondary scale, the positioning worm wheel being rotatably connected to the inside of the functional secondary scale, and a transmission connection between the positioning worm wheel and the regulating worm.

[0006] In at least some embodiments, the bottom of the main linear scale and the functional secondary scale are respectively provided with a linear scale a and a linear scale b indicating the length, the scale value of the linear scale b is a continuation of the scale value of the linear scale a, the outside of the functional secondary scale is provided with an angle scale, and the outside of the indicating connecting shaft is provided with an angle indicating block.

[0007] In at least some embodiments, the functional secondary scale is located above the linear main scale, and a leveling pad is provided at one end of the functional secondary scale away from the linear main scale.

[0008] In at least some embodiments, a synchronization block is disposed outside the control block, and a synchronization groove is disposed inside the indicating connecting shaft, and the synchronization block is inserted inside the synchronization groove.

[0009] In at least some embodiments, a locking top spring is provided inside the control block, and two ends of the locking top spring abut against the inside of the control block and the inside of the indicating connecting shaft respectively.

[0010] In at least some embodiments, a locking tooth block is provided on the outside of the synchronization block, and a locking tooth groove is provided on the inside of the positioning worm gear. Under the action of the locking top spring, when the control block is not pressed by external force, the locking tooth block is inserted into the inside of the locking tooth groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The ruler assembly is of split design, and the functional sub-rule can rotate at one end of the linear main ruler, so that when the angle between the functional sub-rule and the linear main ruler is one hundred and eighty degrees, a straight line can be drawn. Similarly, a short-length straight line can be drawn only by the functional sub-rule or the linear main ruler. After changing the angle between the functional sub-rule and the linear main ruler, a broken line of a corresponding angle can be directly drawn through the edge position of the functional sub-rule and the linear main ruler. It is easy to use, and the regulating assembly can lock and adjust the angle between the functional sub-rule and the linear main ruler. It is easy and flexible to use, simplifies the drawing operation, and improves the flexibility, adaptability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0015] Figure 3 This utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0016] Figure 4 It is a schematic diagram of the structure of the utility model after disassembly.

[0017] Figure 5 It is a schematic diagram of the internal structure of the utility model after the control block is pressed.

[0018] Figure 6 It is a schematic diagram of the internal structure of the utility model after adjusting the angle between the linear main scale and the functional auxiliary scale.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Ruler assembly; 101. Linear main scale; 1011. Linear scale a; 102. Functional secondary scale; 1021. Linear scale b; 1022. Angle scale; 1023. Leveling pad; 103. Indicating connecting shaft; 1031. Angle indicating block; 1032. Synchronizing groove; 2. Control assembly; 201. Control block; 2011. Synchronizing block; 2012. Locking top spring; 2013. Locking tooth block; 202. Adjusting worm; 203. Positioning worm wheel; 2031. Locking tooth groove. DETAILED DESCRIPTION

[0021] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0022] As attached Figure 1 To Attachment Figure 6 As shown:

[0023] Embodiment 1: The utility model provides a plotter for function teaching, including a ruler assembly 1, the ruler assembly 1 includes a linear main scale 101, a functional secondary scale 102 and an indicating connecting shaft 103, the indicating connecting shaft 103 is fixedly installed at one end of the linear main scale 101, and the functional secondary scale 102 is rotatably connected to the outside of the indicating connecting shaft 103; a regulating assembly 2, the regulating assembly 2 includes a control block 201, an adjusting worm 202 and a positioning worm wheel 203, the control block 201 is plugged into the inside of the indicating connecting shaft 103, and the adjusting worm 202 is rotatably connected to the inside of the functional secondary scale 102, the positioning worm wheel 203 is rotatably connected to the inside of the functional secondary scale 102, and the positioning worm wheel 203 and the adjusting worm 202 are transmission-connected.

[0024] In the embodiment of the present disclosure, a linear scale a1011 and a linear scale b1021 indicating the length are respectively provided at the bottom of the linear main scale 101 and the functional secondary scale 102, and the scale value of the linear scale b1021 is a continuation of the scale value of the linear scale a1011. An angle scale 1022 is provided on the outside of the functional secondary scale 102, and an angle indicating block 1031 is provided on the outside of the indicating connecting shaft 103. In use, the linear main scale 101 and the functional secondary scale 102 are respectively provided with a linear scale a1011 and a linear scale b1021. When drawing a straight line, the linear main scale 101 or the functional secondary scale 102 can be used to draw a fixed distance. When the line segment is long, since the straight line scale b1021 is a continuation of the straight line scale a1011, the angle between the functional sub-scale 102 and the linear main scale 101 can be adjusted to one hundred and eighty degrees for drawing. Similarly, the functional sub-scale 102 is also provided with an angle scale 1022. When the functional sub-scale 102 rotates, the angle indicating block 1031 does not rotate with the functional sub-scale 102. Therefore, the use angle between the linear main scale 101 and the functional sub-scale 102 can be determined by the indicated position of the angle indicating block 1031 on the angle scale 1022, which is convenient for drawing two line segments with angles and is convenient and flexible to use.

[0025] In the embodiment of the present disclosure, a locking top spring 2012 is provided inside the control block 201, and the two ends of the locking top spring 2012 are respectively against the inside of the control block 201 and the inside of the indicating connecting shaft 103, a locking tooth block 2013 is provided outside the synchronization block 2011, and a locking tooth groove 2031 is provided inside the positioning worm wheel 203. Under the action of the locking top spring 2012, when the control block 201 is not pressed by an external force, the locking tooth block 2013 is plugged into the inside of the locking tooth groove 2031. In use, the regulating component 2 can locate the angle between the linear main scale 101 and the functional secondary scale 102. When the regulating component 2 is in the reset state, the worm wheel has a one-way transmission. Characteristics, so the positioning worm wheel 203 cannot rotate on the premise that the adjusting worm 202 does not rotate. At this time, the control block 201 is not pressed by external force, and the locking tooth block 2013 is engaged with the locking tooth groove 2031 under the action of the locking top spring 2012, so that the control block 201 cannot rotate at this time. Under the setting of the synchronization block 2011 and the synchronization groove 1032, the movement state of the control block 201 and the linear main scale 101 and the indicating connecting shaft 103 is always synchronized, so that the linear main scale 101 cannot produce relative rotation with the functional sub-scale 102 at this time, so that the linear main scale 101 and the functional sub-scale 102 maintain the current use angle for use, and the stability is extremely strong.

[0026] In the embodiment of the present disclosure, a synchronization block 2011 is provided on the outside of the control block 201, and a synchronization groove 1032 is provided on the inside of the indicating connecting shaft 103. The synchronization block 2011 is plugged into the inside of the synchronization groove 1032. In use, when it is necessary to adjust the angle between the linear main scale 101 and the functional secondary scale 102, it is only necessary to press the control block 201 and rotate the linear main scale 101 or the functional secondary scale 102. After the control block 201 is pressed, the locking tooth block 2013 will be disengaged from the inside of the locking tooth groove 2031, so that thereafter, the whole composed of the linear main scale 101, the indicating connecting shaft 103 and the control block 201 can rotate relative to the functional secondary scale 102, thereby changing the angle between the linear main scale 101 and the functional secondary scale 102. After the adjustment is completed, the control block 201 is released. 1, under the action of the locking top spring 2012, the regulating component 2 can re-lock the use state of the ruler component 1. Since the gear tooth groove clamping positioning method is not error-free, considering this reason, after the locking tooth block 2013 and the locking tooth groove 2031 are clamped and positioned, if the ruler cannot accurately locate the setting angle (there may be a pitch deviation), it is only necessary to rotate the adjusting worm 202 to perform fine-tuning settings. When the adjusting worm 202 rotates, it can drive the positioning worm wheel 203 to rotate. When the positioning worm wheel 203 rotates, the locking tooth groove 2031 can drive the linear main scale 101, the indicating connecting shaft 103 and the control block 201 to rotate relative to the functional secondary scale 102 through the locking tooth block 2013, thereby performing fine-tuning operations and making the drawing accurate.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In the present invention, a linear scale a1011 and a linear scale b1021 are respectively provided on the linear main ruler 101 and the functional secondary ruler 102. When drawing a straight line, the linear main ruler 101 or the functional secondary ruler 102 can be used to draw a fixed distance. When the line segment is long, since the linear scale b1021 is a continuation of the linear scale a1011, the angle between the functional secondary ruler 102 and the linear main ruler 101 can be adjusted to 180 degrees for drawing. Similarly, an angle scale 1022 is also provided on the functional secondary ruler 102. When the functional secondary ruler 102 rotates, the angle indicating block 1031 does not rotate with the functional secondary ruler 102, so that the linear main ruler 101 can be judged by the indicated position of the angle indicating block 1031 on the angle scale 1022. The use angle between the ruler 101 and the functional sub-rule 102 is convenient for drawing two line segments with angles. The regulating component 2 can locate the angle between the linear main ruler 101 and the functional sub-rule 102. When the regulating component 2 is in the reset state, since the worm gear has the characteristic of one-way transmission, the positioning worm wheel 203 cannot rotate on the premise that the adjusting worm 202 does not rotate. At this time, the control block 201 is not pressed by external force. Under the action of the locking top spring 2012, the locking tooth block 2013 is engaged with the locking tooth groove 2031, so that the control block 201 cannot rotate at this time. Under the setting of the synchronization block 2011 and the synchronization groove 1032, the movement state of the control block 201 and the linear main ruler 101 and the indicating connecting shaft 103 is always synchronized. At this time, the linear main scale 101 cannot rotate relative to the functional sub-scale 102, so that the linear main scale 101 and the functional sub-scale 102 maintain the current angle for use. When it is necessary to adjust the angle between the linear main scale 101 and the functional sub-scale 102, it is only necessary to press the control block 201 and rotate the linear main scale 101 or the functional sub-scale 102. After the control block 201 is pressed, the locking tooth block 2013 will escape from the locking tooth groove 2031, so that the linear main scale 101, the indicating connecting shaft 103 and the control block 201 can rotate relative to the functional sub-scale 102, thereby changing the angle between the linear main scale 101 and the functional sub-scale 102. After the adjustment is completed, the control block 201 is released, and the locking tooth block 2013 is locked. Under the action of the fixed top spring 2012, the regulating component 2 can re-lock the use state of the scale component 1. Since the gear tooth groove clamping positioning method is not error-free, for this reason, after the locking tooth block 2013 and the locking tooth groove 2031 are clamped and positioned, if the scale cannot accurately position the setting angle (there may be a pitch deviation), it is only necessary to rotate the adjusting worm 202 to perform fine-tuning settings. When the adjusting worm 202 rotates, it can drive the positioning worm wheel 203 to rotate. When the positioning worm wheel 203 rotates, the locking tooth groove 2031 can drive the linear main scale 101, the indicating connecting shaft 103 and the control block 201 to rotate relative to the functional secondary scale 102 through the locking tooth block 2013, thereby performing fine-tuning operations.

[0029] In another embodiment, the functional secondary scale 102 is located above the linear main scale 101. This design allows the functional secondary scale 102 to be freely rotated and adjusted above the linear main scale 101, and a leveling pad 1023 is provided at one end of the functional secondary scale 102 away from the linear main scale 101. This design allows the bottom of the functional secondary scale 102 and the linear main scale 101 to be on the same plane, which is convenient for leaning against a blackboard or drawing for drawing, and is easy to use.

[0030] In this article, there are a few points to note:

[0031] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A plotter for function teaching, characterized in that: include: A ruler assembly, the ruler assembly includes a linear main scale, a functional secondary scale and an indicating connecting shaft, the indicating connecting shaft is fixedly mounted on one end of the linear main scale, and the functional secondary scale is rotatably connected to the outside of the indicating connecting shaft; a regulating assembly, the regulating assembly includes a control block, an adjusting worm and a positioning worm wheel, the control block is plugged into the inside of the indicating connecting shaft, the adjusting worm is rotatably connected to the inside of the functional secondary scale, the positioning worm wheel is rotatably connected to the inside of the functional secondary scale, and the positioning worm wheel and the adjusting worm are transmission-connected.

2. A plotter for function teaching as claimed in claim 1, characterized in that: The bottom of the linear main scale and the functional auxiliary scale are respectively provided with a linear scale a and a linear scale b indicating the length, the scale value of the linear scale b is a continuation of the scale value of the linear scale a, the outside of the functional auxiliary scale is provided with an angle scale, and the outside of the indicating connecting shaft is provided with an angle indicating block.

3. A plotter for function teaching as claimed in claim 2, characterized in that: The functional secondary scale is located above the linear main scale, and a leveling pad is provided at one end of the functional secondary scale away from the linear main scale.

4. A plotter for function teaching as claimed in claim 3, characterized in that: A synchronization block is arranged outside the control block, and a synchronization groove is arranged inside the indicating connection shaft, and the synchronization block is inserted inside the synchronization groove.

5. A plotter for function teaching as claimed in claim 4, characterized in that: A locking top spring is arranged inside the control block, and two ends of the locking top spring respectively abut against the inside of the control block and the inside of the indicating connecting shaft.

6. A plotter for function teaching as claimed in claim 5, characterized in that: A locking tooth block is provided outside the synchronization block, and a locking tooth groove is provided inside the positioning worm wheel. Under the action of the locking top spring, when the control block is not pressed by external force, the locking tooth block is inserted into the locking tooth groove.

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