Multiplication demonstrator

Abstract

The utility model belongs to the technical field of teaching aids, in particular to a multiplication demonstrator, which comprises a shell, a mounting plate is arranged on the upper surface of the shell, a plurality of movable blocks are arranged in the center of the mounting plate, and a finger pressing mechanism is arranged in the shell; the finger pressing mechanism comprises a vertical plate, a convex block is arranged on the upper surface of the vertical plate, a round hole is formed in the center of the convex block, a main connecting rod is arranged on the surface of one side of the vertical plate, and a vertical pressing plate is arranged on the upper surface of the main connecting rod; a plurality of clamping blocks are symmetrically arranged on the inner side wall of the number adjusting box, a movable sliding plate is arranged on the upper surface of the number adjusting box, a jacking column is arranged on the upper surface of the sliding plate, and a number adjusting strip is arranged on one side of the jacking column; according to the utility model, the finger pressing mechanism is arranged, so that multiplication questions can be calculated in a relatively convenient manner, and the demonstration effect is more vivid and interesting.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching tools, and in particular relates to a multiplication demonstrator. Background Art

[0002] Multiplication is a compulsory knowledge point in elementary school mathematics, and it is knowledge that every elementary school student must master. However, the current elementary school multiplication education method still follows the old education concept, which allows students to learn multiplication by reciting the multiplication table. This method is too mechanical and cannot allow students to understand the meaning of multiplication. The teaching effect is not good, and students cannot quickly master the key points of multiplication.

[0003] In China, the patent number CN212322486U discloses a novel multiplication demonstrator. Through the cooperation among the first card slot, the box body, the second card slot, the bottom plate, etc., after the limit assembly is separated from the rectangular block, the box body can be pulled out to quickly take out the placement parts to complete the multiplication operation, which solves the problem that some existing multiplication demonstrators have simple structures, are not equipped with paper and pen, and have certain usage limitations; during the use of the above-mentioned device, it is necessary to use paper and pen frequently to record and strengthen memory, but for some younger children, the method of using paper and pen to record memory is relatively unattractive, which easily makes them have a certain resistance, so that they are unwilling to use the demonstrator frequently, resulting in poor use effect;

[0004] To solve the above problems, this application proposes a multiplication demonstrator. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a multiplication demonstrator, which is interesting and more attractive to children.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multiplication demonstrator comprises: a shell, a mounting plate is arranged on the upper surface of the shell, a plurality of movable blocks are arranged at the center of the mounting plate, and a finger pressure mechanism is arranged inside the shell; the finger pressure mechanism comprises: a vertical plate, a protrusion is arranged on the upper surface of the vertical plate, a circular hole is opened at the center of the protrusion, a main connecting rod is arranged on one side surface of the vertical plate, and a vertical pressure plate is arranged on the upper surface of the main connecting rod; a number adjustment box, a plurality of card blocks are symmetrically arranged on the inner side wall of the number adjustment box, a movable sliding plate is arranged on the upper surface of the number adjustment box, a top column is arranged on the upper surface of the sliding plate, a number adjustment strip is arranged on one side of the top column, a secondary connecting rod is arranged on the upper surface of the number adjustment strip, and a horizontal pressure plate is arranged on the upper side surface of the secondary connecting rod.

[0008] As a preferred multiplication demonstrator of the utility model, a mounting hole is provided on the upper surface of the top column, a spring is arranged inside the mounting hole, and a silicone pad is arranged on the upper surface of the spring.

[0009] As a preferred multiplication demonstrator of the utility model, an answer display board is arranged on one side surface of the movable block, sliders are arranged on the left and right sides of the movable block, a plurality of slide grooves are opened on the side surface of the mounting plate, and the sliders slide inside the slide grooves.

[0010] As a preferred embodiment of the multiplication demonstrator of the utility model, a plurality of partition baffles are arranged on both sides of the shell, and a bearing sleeve is arranged at the bottom of each of the partition baffles.

[0011] As a preferred embodiment of the multiplication demonstrator of the utility model, shaft bodies matching with the bearing sleeve are arranged on both sides of the main connecting rod and the auxiliary connecting rod, and the shaft bodies rotate inside the bearing sleeve.

[0012] As a preferred multiplication demonstrator of the utility model, a plurality of number plates are arranged on the upper surface of the number adjustment strip, and a pull ring is arranged on one side of the number adjustment strip relative to the number adjustment box.

[0013] As a preferred embodiment of the multiplication demonstrator of the utility model, an opening is provided on one side of the shell, and a reference plate is provided above the opening.

[0014] Compared with the prior art, the beneficial effects of the present invention are

[0015] 1. By providing a finger-pressing mechanism, the vertical pressing plate marked with the specified multiplier and the horizontal pressing plate marked with the multiplicand can be pressed to lift the movable block with the answer upwards by using the top column, and the answer can be observed through the answer display board on the side of the movable block, so as to make the calculation process more interesting and more attractive to children;

[0016] 2. By providing a spring and a silicone pad, the spring and the silicone pad form a noise reduction component. When the top column is pushed upward, the silicone pad is subjected to force and compresses the spring. When the silicone pad collides with the bottom of the movable block, the silicone pad is a soft structure and can reduce the noise generated by the collision. When the multiplication demonstrator of this application is used frequently, the impact of noise on children can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the housing of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the vertical plate and the vertical pressure plate of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the adjustment box, the adjustment strip and the transverse pressing plate of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the movable block of the utility model;

[0023] Figure 6 It is a side view of the mounting plate of the utility model;

[0024] Figure 7 It is a partial cross-sectional view of the sliding plate and the top column of the utility model when they are connected.

[0025] In the figure: 1. Shell; 2. Mounting plate; 3. Movable block; 4. Partition baffle; 5. Vertical pressure plate; 6. Main connecting rod; 7. Horizontal pressure plate; 8. Auxiliary connecting rod; 9. Reference plate; 10. Adjustment bar; 11. Pull ring; 12. Number plate; 13. Top column; 14. Round hole; 15. Adjustment box; 16. Vertical plate; 17. Bearing sleeve; 18. Shaft body; 19. Bump; 20. Block; 21. Sliding plate; 22. Answer display board; 23. Slider; 24. Slide groove; 25. Spring; 26. Silicone pad. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model provides Figure 1-7 A multiplication demonstrator shown includes: a housing 1, a mounting plate 2 is arranged on the upper surface of the housing 1, a plurality of movable blocks 3 are arranged at the center of the mounting plate 2, and a finger pressing mechanism is arranged inside the housing 1;

[0028] The finger pressing mechanism comprises a vertical plate 16, a protrusion 19 is provided on the upper surface of the vertical plate 16, a circular hole 14 is provided at the center of the protrusion 19, a main connecting rod 6 is provided on one side surface of the vertical plate 16, and a vertical pressing plate 5 is provided on the upper surface of the main connecting rod 6;

[0029] A number adjustment box 15, the inner side wall of which is symmetrically provided with a plurality of blocks 20, a movable sliding plate 21 is provided on the upper surface of the number adjustment box 15, a top column 13 is provided on the upper surface of the sliding plate 21, a number adjustment strip 10 is provided on one side of the top column 13, a secondary connecting rod 8 is provided on the upper surface of the number adjustment strip 10, and a horizontal pressing plate 7 is provided on one side surface above the secondary connecting rod 8;

[0030] As can be seen from the above, when in use, by pressing the vertical pressure plate 5 marked with the specified multiplier, the shaft bodies 18 on both sides of the vertical pressure plate 5 are rotated inside the bearing sleeve 17, the vertical plate 16 is tilted, and the top column 13 on the top of the vertical plate 16 pushes the movable block 3 upward, and the user manually pushes the pull ring 11, and the pull ring 11 pushes the adjustment bar 10 marked with the multiplicand, so that the adjustment bar 10 moves to the inside of the adjustment box 15. By observing that the specified multiplicand is just located at the bottom of the reference plate 9, the top column 13 is located below the movable block 3 with the correct answer, and by pressing down the horizontal pressure plate 7 corresponding to the above-mentioned adjusted number bar 10, the horizontal pressure plate 7 is located above the adjusted number bar 10, so that the adjusted number box 15 is tilted upward and moved to the bottom of the vertical plate 16. In this process, the top column 13 directly passes through the circular hole 14 above the vertical plate 16, and pushes the movable block 3 with the answer upward, and the answer is observed through the answer display board 22 on the side of the movable block 3.

[0031] Furthermore, a mounting hole is provided on the upper surface of the top column 13, a spring 25 is provided inside the mounting hole, and a silicone pad 26 is provided on the upper surface of the spring 25;

[0032] Specifically, by providing the spring 25 and the silicone pad 26, during use, when the top column 13 pushes the movable block 3 upward, the silicone pad 26 collides with the bottom of the movable block 3. The silicone pad 26 is a soft structure, which can reduce the impact and reduce noise, and prevent the user from pressing the horizontal pressure plate 7 too hard, causing the top column 13 to suddenly push up and cause a lot of noise. Reducing noise can enable children to have a better experience when using the multiplication demonstrator of the present application.

[0033] Furthermore, an answer display board 22 is provided on one side surface of the movable block 3, and sliders 23 are provided on both the left and right sides of the movable block 3. A plurality of slide grooves 24 are provided on the side surface of the mounting plate 2, and the sliders 23 slide inside the slide grooves 24;

[0034] Specifically, by providing the slider 23 and the slide groove 24, it can be ensured that when the top column 13 pushes the movable block 3 upward, the movable block 3 can be lifted smoothly to display the answer.

[0035] Furthermore, a plurality of partition baffles 4 are provided on both sides of the housing 1, and a bearing sleeve 17 is provided at the bottom of each partition baffle 4;

[0036] Specifically, by providing the partition baffle 4, it can be ensured that when each adjustment box 15 or vertical plate 16 is pressed down and rotated, it will not affect other groups, thereby ensuring the accuracy of measurement.

[0037] Furthermore, both sides of the main connecting rod 6 and the auxiliary connecting rod 8 are provided with a shaft body 18 matched with the bearing sleeve 17, and the shaft body 18 rotates inside the bearing sleeve 17;

[0038] Specifically, by providing the bearing sleeve 17 and the shaft body 18, it can be ensured that the adjustment box 15 and the vertical plate 16 can rotate normally with downward pressure during use, preventing the movable block 3 from being unable to be ejected.

[0039] Furthermore, a plurality of number plates 12 are provided on the upper surface of the number adjustment strip 10, and a pull ring 11 is provided on one side of the number adjustment strip 10 relative to the number adjustment box 15;

[0040] Specifically, by providing the number board 12, during use, by moving the number board 12 marked with the specified multiplicand to the bottom of the reference board 9, it is convenient for children to observe and facilitate children to move the sliding board 21 to drive the top column 13 to the bottom of the active block 3 with the correct answer.

[0041] Furthermore, an opening is provided on one side of the housing 1, and a reference plate 9 is provided above the opening;

[0042] Specifically, by providing a reference board 9, during the movement of the adjustment bar 10, the moving distance can be observed by observing the numbers on the number board 12 currently located at the bottom of the reference board 9, so as to ensure that the top column 13 can move to the bottom of the active block 3 with the correct answer.

[0043] According to the above technical solution, when in use, after the user selects the problem that he wants to perform calculation demonstration, he presses the vertical pressure plate 5 marked with the specified multiplier, and uses the shafts 18 on both sides of the vertical pressure plate 5 to rotate inside the bearing sleeve 17, so that the vertical plate 16 is tilted and closely attached to the bottom of the movable block 3, and then pushes the pull ring 11 marked with the multiplicand to move the adjustment bar 10 to the inside of the adjustment box 15. By providing a reference plate 9, during the movement of the adjustment bar 10, by observing the number currently located at the bottom of the reference plate 9, The moving distance is observed to ensure that the top column 13 can move to the bottom of the movable block 3 with the correct answer, and the horizontal pressure plate 7 of the multiplicand row is pressed downward to make the adjustment box 15 tilt upward and be located at the bottom of the vertical plate 16. The top column 13 is used to pass through the round hole 14 above the vertical plate 16, and the movable block 3 with the answer is lifted upward, and the answer is observed through the answer display board 22 on the side of the movable block 3, so that the multiplication demonstration has a stronger interest and has a stronger attractive effect on children.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multiplication demonstrator, characterized in that: include: A housing (1), wherein a mounting plate (2) is arranged on the upper surface of the housing (1), a plurality of movable blocks (3) are arranged at the center of the mounting plate (2), and a finger-pressing mechanism is arranged inside the housing (1); The finger pressing mechanism comprises a vertical plate (16), a protrusion (19) is provided on the upper surface of the vertical plate (16), a circular hole (14) is provided at the center of the protrusion (19), a main connecting rod (6) is provided on one side surface of the vertical plate (16), and a vertical pressing plate (5) is provided on the upper surface of the main connecting rod (6); A number adjustment box (15), wherein the inner side wall of the number adjustment box (15) is symmetrically provided with a plurality of blocks (20), the upper surface of the number adjustment box (15) is provided with a movable sliding plate (21), the upper surface of the sliding plate (21) is provided with a top column (13), a number adjustment strip (10) is provided on one side of the top column (13), a secondary connecting rod (8) is provided on the upper surface of the number adjustment strip (10), and a horizontal pressure plate (7) is provided on the upper side surface of the secondary connecting rod (8).

2. The multiplication demonstrator according to claim 1, characterized in that: The upper surface of the top column (13) is provided with a mounting hole, a spring (25) is arranged inside the mounting hole, and a silicone pad (26) is arranged on the upper surface of the spring (25).

3. The multiplication demonstrator according to claim 1, characterized in that: An answer display panel (22) is provided on one side surface of the movable block (3), sliders (23) are provided on both the left and right sides of the movable block (3), and a plurality of slide grooves (24) are provided on the side surface of the mounting plate (2), and the sliders (23) can slide inside the slide grooves (24).

4. The multiplication demonstrator according to claim 1, characterized in that: A plurality of partition baffles (4) are arranged on both sides of the housing (1), and a bearing sleeve (17) is arranged at the bottom of each partition baffle (4).

5. The multiplication demonstrator according to claim 4, characterized in that: A shaft body (18) matched with the bearing sleeve (17) is arranged on both sides of the main connecting rod (6) and the auxiliary connecting rod (8), and the shaft body (18) can rotate inside the bearing sleeve (17).

6. The multiplication demonstrator according to claim 1, characterized in that: A plurality of number plates (12) are arranged on the upper surface of the number adjustment strip (10), and a pull ring (11) is arranged on one side of the number adjustment strip (10) opposite to the number adjustment box (15).

7. The multiplication demonstrator according to claim 1, characterized in that: An opening is provided on one side of the housing (1), and a reference plate (9) is provided above the opening.

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