Auxiliary teaching aid for mathematics teaching

Abstract

The utility model discloses an auxiliary teaching aid for mathematics teaching, and relates to the technical field of mathematics teaching aids, the auxiliary teaching aid for mathematics teaching comprises a main ruler and a storage groove, the storage groove is arranged at one side in the main ruler, one end of the storage groove is rotatably provided with an L-shaped frame, one end of the L-shaped frame is fixedly provided with a movable ruler, and the movable ruler is fixed on the main ruler. One side of the movable ruler is embedded into the storage groove, auxiliary rulers are fixed to the upper surface and the lower surface of the movable ruler, and a limiting sliding block is further installed on the movable ruler in a sliding mode. Through the arrangement of the storage groove, the movable ruler can be embedded into the storage groove, so that the whole device is of a long-strip-shaped structure, the device is convenient to store and carry, under the rotary connection of the steel wire, the limiting sliding block, the movable ruler and the main ruler, the drawing of triangles in different shapes is facilitated, and the functionality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mathematics teaching aids, in particular to a mathematics teaching auxiliary teaching aid. Background Art

[0002] When mathematics teachers are teaching certain courses, such as geometric figures, they need to draw geometric figures to achieve better teaching goals and enhance students' comprehension. However, traditional mathematics teaching aids are not only numerous but also inconvenient to carry and have poor use effects. In the teaching process, it is often necessary to show students teaching aids of various shapes, and at the same time, it is necessary to measure lengths and angles frequently, and sometimes it is necessary to draw circles on the blackboard. Most of the existing auxiliary teaching aids are independently set and have poor storage capacity. The overall space occupied is large, which brings certain disadvantages to teaching.

[0003] The Chinese utility model patent with publication number CN216331116U discloses an auxiliary teaching aid for mathematics teaching. The utility model can make the device in use by the coordination arrangement between the reinforcement baffle, semi-arc groove, empty groove, cylinder, clamping column, protractor, ruler sleeve plate, ruler, groove and cavity. The mathematics teacher presses down the clamping column on the protractor and inserts it into the clamping groove inside the cylinder, and rotates the protractor out from the inside of the upper triangle plate and the lower triangle plate to drive the cylinder to rotate, so that the mathematics teacher can drive the movement of the whole device by taking the protractor. After use, the protractor is rotated and placed between the upper triangle plate and the lower triangle plate to increase the space occupied by the whole device.

[0004] However, the above device is not convenient to carry during actual use, and the structure is triangular after being stored, which occupies a large area and has poor structural flexibility. Utility Model Content

[0005] The utility model provides a mathematics teaching auxiliary teaching aid to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mathematics teaching auxiliary teaching aid, comprising a main ruler, and also comprising: a storage slot, the storage slot is opened on one side of the main ruler, and an L-shaped frame is rotatably installed at one end of the storage slot, a movable ruler is fixed at one end of the L-shaped frame, one side of the movable ruler is embedded in the storage slot, and auxiliary rulers are fixed on the upper and lower surfaces of the movable ruler, and a limit slider is slidably installed on the movable ruler: a rotating shaft, the rotating shaft is rotatably installed at one end of the storage slot away from the L-shaped frame, and a winding wheel is fixed on the outer fixed sleeve of the rotating shaft, a steel wire is arranged between the winding wheel and the limit slider, spring springs are installed at the connection between the two ends of the rotating shaft and the storage slot, and fasteners for locking the rotating shaft are also arranged at the two ends of the rotating shaft; an angle measuring assembly, the angle measuring assembly is installed at the connection between the main ruler and the L-shaped frame; a circle drawing assembly, the circle drawing assembly is arranged on the side of the main ruler away from the storage slot.

[0007] As a preferred technical solution of the utility model, the protractor assembly includes a protractor fixed to the upper surface of the main ruler, a pointer is rotatably mounted on the protractor, and the pointer is fixedly connected to the axis of the L-shaped frame.

[0008] As a preferred technical solution of the utility model, the circle drawing component includes a connecting groove opened on the other side of the main ruler, a moving seat is slidably installed inside the connecting groove, a sleeve is fixed on the moving seat, the sleeve is a pipe fitting with a truncated cone structure, and a push rod is slidably installed on the upper end of the sleeve, and a reset spring is sleeved on the outer side of the push rod between the upper end of the sleeve and the upper end of the push rod.

[0009] As a preferred technical solution of the utility model, a screw rod is rotatably installed inside the connecting groove, the screw rod is threadedly connected to the movable seat, and the other end of the screw rod passes through the main scale and is installed with a knob.

[0010] As a preferred technical solution of the utility model, the fastener includes a second support plate, the lower end of the rotating shaft passes through the main scale and is fixedly connected to the second support plate, and the upper end of the rotating shaft passes through the main scale and is threadedly connected with a fastening nut sleeve, a first anti-slip pad is installed at the lower end of the fastening nut sleeve, and a second anti-slip pad is installed on the upper surface of the main scale at the outer side of the rotating shaft.

[0011] As a preferred technical solution of the utility model, a limit slide groove is provided on the movable ruler, the limit slide block is slidably connected to the limit slide groove, and a rubber pad is installed at the connection between the limit slide block surface and the limit slide groove.

[0012] As a preferred technical solution of the utility model, first support plates are rotatably mounted near both ends of the lower surface of the main scale, and the first support plates are components made of magnetic material.

[0013] Compared with the prior art, the present invention provides a mathematics teaching aid having the following features:

[0014] Beneficial effects:

[0015] 1. The mathematics teaching auxiliary teaching aid can embed the movable ruler into the interior through the setting of the storage slot, so that the overall device has a long strip structure, which is convenient for storage and carrying of the device. The rotation connection between the steel wire, the limit slider and the movable ruler and the main ruler is conducive to drawing triangles of different shapes, thereby improving the functionality of the device.

[0016] 2. This mathematics teaching aid is conducive to the measurement of the angle between the main ruler and the movable ruler through the setting of the angle measuring assembly, thereby realizing the angle measuring function of the device. The sleeve is driven to move by the sliding movable seat, and the distance from the sleeve to the other end of the main ruler can be adjusted, which is conducive to the drawing of circles with different inner diameters and further improves the functionality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when it is stored:

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the utility model:

[0021] Figure 5 For this utility model Figure 1 Another perspective of the picture;

[0022] Figure 6 It is a schematic diagram of the installation structure of the sleeve in the utility model.

[0023] In the figure: 1. main ruler; 2. L-shaped frame; 3. movable ruler; 4. auxiliary ruler; 5. limit slide groove; 6. limit slider; 7. steel wire; 8. protractor; 9. moving seat; 10. sleeve; 11. push rod; 12. reset spring: 13. storage slot: 14. pointer: 15. first support plate: 16. second support plate: 17. rotating shaft: 18. winding wheel: 19. spring spring: 20. fastening nut sleeve: 21. connecting slot: 22. screw rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6The utility model discloses a mathematics teaching auxiliary teaching aid, comprising a main ruler 1, and a storage slot 13, the storage slot 13 is opened at one side of the main ruler 1, and an L-shaped frame 2 is rotatably installed at one end of the storage slot 13, a movable ruler 3 is fixed at one end of the L-shaped frame 2, and one side of the movable ruler 3 is embedded in the storage slot 13, so that the device as a whole is a long strip structure, which is convenient for the storage and carrying of the device, and the upper and lower surfaces of the movable ruler 3 are fixed with auxiliary rulers 4, and a limit slider 6 is also slidably installed on the movable ruler 3; in this embodiment, it also includes a rotating shaft 17, the rotating shaft 17 is rotatably installed in the storage slot 13 at one end away from the L-shaped frame 2, and a winding wheel 18 is fixedly sleeved on the outer side of the rotating shaft 17, a steel wire 7 is provided between the winding wheel 18 and the limit slider 6, and both ends of the rotating shaft 17 are installed at the connection with the storage slot 13 The winding spring 19 and the two ends of the rotating shaft 17 are also provided with fasteners for locking the rotating shaft 17. Under the rotation connection between the steel wire 7, the limit slider 6 and the movable ruler 3 and the main ruler 1, it is convenient to draw triangles of different shapes, thereby improving the functionality of the device. In addition, the winding wheel 18 can be used for winding the steel wire 7. Under the setting of the fastener, the winding wheel 18 is locked, thereby preventing the winding wheel 18 from actively winding the steel wire 7, thereby facilitating the movable ruler 3, the main ruler 1 and the steel wire 7 to form a triangular structure. After the drawing is completed, the fastener releases the winding wheel 18, and the rotating shaft 17 drives the winding wheel 18 to rotate actively under the contraction of the winding spring 19, thereby winding the steel wire 7, further pulling the movable ruler 3 to embed into the storage groove 13, which is convenient for the storage of the device.

[0026] In addition, the present embodiment further comprises an angle measuring assembly, which is installed at the connection between the main ruler 1 and the L-shaped frame 2, so as to facilitate the measurement of the angle between the main ruler 1 and the movable ruler 3, thereby improving the functionality of the device;

[0027] In order to further improve the function of the device, a circle drawing component is provided on the side of the main ruler 1 away from the storage groove 13, and the circle drawing component can be used to draw circles with different inner diameters.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the protractor assembly in this embodiment includes a protractor 8 fixed to the upper surface of the main scale 1, and a pointer 14 is rotatably mounted on the protractor 8. The pointer 14 is fixedly connected to the axis of the L-shaped frame 2. When the movable scale 3 rotates, the L-shaped frame 2 is driven to rotate. At this time, the pointer 14 rotates synchronously with the L-shaped frame 2. Under the setting of the protractor 8, the rotation angle of the pointer 14 can be measured, thereby measuring the angle between the movable scale 3 and the main scale 1, thereby improving the practicality of the device.

[0029] like Figure 4 and Figure 6As shown, the circle drawing component in this embodiment includes a connecting groove 21 opened on the other side of the main ruler 1, a moving seat 9 is slidably installed inside the connecting groove 21, a sleeve 10 is fixed on the moving seat 9, the sleeve 10 is a pipe fitting of a truncated cone structure, and a push rod 11 is slidably installed on the upper end of the sleeve 10, and a return spring 12 is sleeved between the upper end of the sleeve 10 and the upper end of the push rod 11 on the outer side of the push rod 11. The chalk is inserted into the sleeve 10. Since the sleeve 10 is a pipe fitting of a truncated cone structure, the upper end of the chalk can be fixed, the position of the moving seat 9 in the connecting groove 21 is adjusted, and then the distance from the sleeve 10 to the end of the main ruler 1 close to the L-shaped frame 2 is adjusted. With the end of the main ruler 1 close to the L-shaped frame 2 as the center of the circle, the main ruler 1 is rotated to achieve the drawing of circles with different inner diameters.

[0030] like Figure 1 and Figure 4 As shown, in order to facilitate the position adjustment of the movable seat 9, a screw rod 22 is rotatably installed inside the connecting groove 21, the screw rod 22 is threadedly connected to the movable seat 9, and the other end of the screw rod 22 passes through the main scale 1 and is installed with a knob.

[0031] In this embodiment, the screw rod 22 is rotated by turning the knob, and the thread force generated by the threaded connection between the screw rod 22 and the movable seat 9 pushes the movable seat 9 to slide inside the connecting groove 21. Under the sliding connection between the connecting groove 21 and the movable seat 9, the sliding guidance of the movable seat 9 can be achieved, which is beneficial to the adjustment of the distance from the movable seat 9 to the end of the main scale 1 close to the L-shaped frame 2.

[0032] like Figure 2 and Figure 3 As shown, the fastener involved in this embodiment includes a second support plate 16, the lower end of the rotating shaft 17 passes through the main scale 1 and is fixedly connected to the second support plate 16, and the upper end of the rotating shaft 17 passes through the main scale 1 and is threadedly connected with a fastening nut sleeve 20, a first anti-slip pad is installed at the lower end of the fastening nut sleeve 20, and a second anti-slip pad is installed on the upper surface of the main scale 1 at the outer side of the rotating shaft 17.

[0033] In this embodiment, the second support plate 16 is fixed by external force, so that the rotating shaft 17 is locked to prevent the rotating shaft 17 from rotating. At this time, the fastening nut sleeve 20 is rotated, and the fastening nut sleeve 20 is moved toward the second support plate 16 through the threaded connection between the fastening nut sleeve 20 and the upper end of the rotating shaft 17, so that the first anti-slip pad is further abutted against the second anti-slip pad, thereby increasing the friction force when the fastening nut sleeve 20 rotates, and further increasing the friction force when the rotating shaft 17 rotates, thereby achieving the locking of the rotating shaft 17.

[0034] like Figure 1 and Figure 4As shown, a limit slide groove 5 is provided on the movable ruler 3, a limit slider 6 is slidably connected to the limit slide groove 5, and a rubber pad is installed at the connection between the surface of the limit slider 6 and the limit slide groove 5. By setting the rubber pad, the friction between the limit slider 6 and the limit slide groove 5 is increased, thereby improving the stability of the limit slider 6 inside the limit slide groove 5.

[0035] like Figure 5 As shown, in order to further facilitate the main ruler 1 to be attached to the blackboard, first support plates 15 are rotatably installed on the lower surface of the main ruler 1 near both ends. The rotatably installed first support plates 15 are conducive to the rotation of the main ruler 1 on the surface of the blackboard. In addition, the first support plate 15 is a component made of magnetic material. Since most existing blackboards are made of magnetic color-coated steel plates, magnetic attraction between the first support plate 15 and the blackboard can be achieved, and the main ruler 1 can be further adsorbed on the surface of the blackboard.

[0036] The working principle and use process of the utility model are as follows: when in use, one side of the movable ruler 3 is embedded in the storage groove 13, so that the device as a whole has a long strip structure, which is convenient for storage and carrying of the device, and the limit slider 6 is slid to form a triangular structure between the steel wire 7, the movable ruler 3 and the main ruler 1. At this time, the winding wheel 18 is locked by the locking member to prevent the steel wire 7 from being actively wound up. Under the rotation connection between the steel wire 7, the limit slider 6 and the movable ruler 3 and the main ruler 1, it is conducive to drawing triangles of different shapes, thereby improving the functionality of the device. After the drawing is completed, the fastener releases the winding wheel 18, and the rotating shaft 17 drives the winding wheel 18 to rotate actively under the contraction of the clockwork spring 19, so that the steel wire 7 is wound up, and the movable ruler 3 is further pulled to embed into the storage groove 13, which is convenient for the storage of the device. In addition, when the movable ruler 3 rotates, it drives the L-shaped frame 2 Rotate, at this time, the pointer 14 rotates synchronously with the L-shaped frame 2. Under the setting of the protractor 8, the rotation angle of the pointer 14 can be measured, so as to measure the angle between the movable ruler 3 and the main ruler 1, thereby improving the practicality of the equipment. Insert the chalk into the sleeve 10. Since the sleeve 10 is a pipe fitting with a truncated cone structure, the upper end of the chalk can be fixed, and the position of the movable seat 9 inside the connecting groove 21 is adjusted, and then the distance from the sleeve 10 to the end of the main ruler 1 close to the L-shaped frame 2 is adjusted. With the end of the main ruler 1 close to the L-shaped frame 2 as the center of the circle, the main ruler 1 is rotated to realize the drawing of circles with different inner diameters. After the drawing is completed, the push rod 11 is pressed so that its lower end pushes the chalk, thereby pushing the chalk out from the inside of the sleeve 10 to avoid blockage inside the sleeve 10. Under the setting of the reset spring 12, it is conducive to the active reset of the push rod 11 when there is no external force, thereby improving the practicality of the equipment.

[0037] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mathematics teaching aid, comprising a main ruler (1), characterized in that: Also includes: A storage groove (13), the storage groove (13) is arranged on one side of the main ruler (1), and an L-shaped frame (2) is rotatably mounted on one end of the storage groove (13), a movable ruler (3) is fixed on one end of the L-shaped frame (2), one side of the movable ruler (3) is embedded in the storage groove (13), and auxiliary rulers (4) are fixed on the upper and lower surfaces of the movable ruler (3), and a limit slider (6) is also slidably mounted on the movable ruler (3); A rotating shaft (17), the rotating shaft (17) is rotatably mounted in the storage groove (13) at one end away from the L-shaped frame (2), and a winding wheel (18) is provided on the fixed sleeve outside the rotating shaft (17), a steel wire (7) is provided between the winding wheel (18) and the limiting slider (6), spring springs (19) are installed at the connection points between the two ends of the rotating shaft (17) and the storage groove (13), and fasteners for locking the rotating shaft (17) are also provided at the two ends of the rotating shaft (17); Angle measuring assembly, the angle measuring assembly is installed at the connection between the main ruler (1) and the L-shaped frame (2): A circle drawing component is arranged on a side of the main ruler (1) away from the storage groove (13).

2. A mathematics teaching aid according to claim 1, characterized in that: The angle measuring assembly comprises a protractor (8) fixed on the upper surface of the main ruler (1), a pointer (14) is rotatably mounted on the protractor (8), and the pointer (14) is fixedly connected to the axis of the L-shaped frame (2).

3. A mathematics teaching aid according to claim 2, characterized in that: The circle drawing component comprises a connecting groove (21) opened on the other side of the main ruler (1), a movable seat (9) is slidably mounted inside the connecting groove (21), a sleeve (10) is fixed on the movable seat (9), the sleeve (10) is a pipe fitting with a truncated cone structure, and a push rod (11) is slidably mounted on the upper end of the sleeve (10), and a return spring (12) is sleeved on the outer side of the push rod (11) and located between the upper end of the sleeve (10) and the upper end of the push rod (11).

4. A mathematics teaching aid according to claim 3, characterized in that: A screw rod (22) is rotatably mounted inside the connection groove (21), the screw rod (22) is threadedly connected to the movable seat (9), and the other end of the screw rod (22) passes through the main scale (1) and is mounted with a knob.

5. A mathematics teaching aid according to any one of claims 1 to 3, characterized in that: The fastener comprises a second supporting plate (16), the lower end of the rotating shaft (17) passes through the main scale (1) and is fixedly connected to the second supporting plate (16), and the upper end of the rotating shaft (17) passes through the main scale (1) and is threadedly connected to a fastening nut sleeve (20), a first anti-skid pad is installed at the lower end of the fastening nut sleeve (20), and a second anti-skid pad is installed on the upper surface of the main scale (1) at a position outside the rotating shaft (17).

6. A mathematics teaching aid according to claim 5, characterized in that: The movable ruler (3) is provided with a limit slide groove (5), the limit slide block (6) is slidably connected to the limit slide groove (5), and a rubber pad is installed at the connection between the surface of the limit slide block (6) and the limit slide groove (5).

7. A mathematics teaching aid according to claim 4, characterized in that: A first support disk (15) is rotatably mounted on the lower surface of the main ruler (1) near both ends, and the first support disk (15) is a component made of magnetic material.

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