CN212782388U

CN212782388U - Primary school mathematics addition and subtraction learning device

Info

Publication number: CN212782388U
Application number: CN202021482901.6U
Authority: CN
Inventors: 宋洪臻
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-23
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a teaching articles for use field more particularly, relates to a primary school's mathematics plus-minus method learning. Including base, bin, first conveyor, display box, second conveyor, output tube, hoisting device, demonstration ball, have in the storage box the demonstration ball, the below of bin has the display box, the bin with have between the display box first conveyor, the display box is transparent material, the display box below has the output tube, the display box with have between the output tube second conveyor, the other end of output tube is connected to the hoisting device below, hoisting device's upper end is connected to the bin, the demonstration ball is in the bin the display box the output tube the hoisting device mesocycle motion. The utility model discloses can be vivid show the change of adding the continuous addition and subtraction in-process object actual quantity, make things convenient for student's watching.

Description

Primary school mathematics addition and subtraction learning device

Technical Field

The utility model relates to a teaching articles for use field more particularly, relates to a primary school's mathematics plus-minus method learning.

Background

In the primary school mathematics teaching, especially in the mathematics class of the students in the lower grades, because the ages of the students are relatively small, the sensitivity to numbers is not high, and when the students add and subtract in the beginning, the relation between the numbers and the actual number and the process of the addition and subtraction can not be accurately understood in many times, the efficiency and the accuracy of calculation are influenced, the learning process of mathematics is relatively boring, and the students lack sufficient sensitivity to the numbers, so the learning effect is influenced. At present teaching in-process, some teachers can bring some little sticks when in class, at the in-process of the addition and subtraction of lecture, can combine the increase and decrease of little stick quantity, deepen student's understanding, but at the teaching in-process of big class, the student is not directly perceived through observing little stick, the process to little stick quantity increase and decrease is also easily made up confusion, the process of addition and subtraction can not vividly show, influence teaching effect, and because little stick is less relatively, lose easily, easily cause the miscalculation, influence teaching effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a primary school's mathematics addition and subtraction learning aims at solving the technical problem that exists among the prior art, and the visual vivid change condition that shows actual quantity in the addition and subtraction operation in-process deepens student's understanding.

In order to achieve the above object, an aspect of the present invention provides a primary school mathematics addition and subtraction learning device, including: base, bin, first conveyor, show case, second conveyor, output tube, hoisting device, demonstration ball, have in the bin the demonstration ball, the below of bin has first export, the below of first export has the show case, show case top has the second entry, first export with have between the show case first conveyor, first conveyor can with in the bin the demonstration ball is once through in the second entry is sent into in the show case, the show case is transparent material, show case below has the second export, the below of second export has the output tube, the top of output tube has the third entry, the second export with have between the output tube second conveyor, second conveyor can with in the show case the demonstration ball is once through the third entry is sent into in the output tube, the third exit linkage of the other end of output tube to hoisting device below, demonstration ball in the output tube can enter into among the hoisting device, hoisting device can be with the below the demonstration ball promotes, hoisting device's upper end is connected to the first entry of bin, demonstration ball can pass through the first entry of bin is carried back in the bin, the output tube the display box the hoisting device is connected on the base, the bin is connected the display box top, the demonstration ball is in the bin the display box the output tube the hoisting device mesocycle motion.

The utility model provides an above-mentioned technical scheme provides a primary school mathematics addition and subtraction learning device, moreover, the steam generator is simple in structure, it is nimble convenient to use, the change of the continuous addition and subtraction in-process object actual quantity of show that can be vivid, when adding, press first conveyor and can add the demonstration ball to the show case, when carrying out the subtraction, press the second conveyor and can follow the show case and get rid of the demonstration ball, the process of adding the demonstration ball and getting rid of the demonstration ball is not in same position, thereby avoided causing the confusion in the show process, make things convenient for the student to watch, directly perceived clear and definite, and can realize the contrast of addition and subtraction arithmetic and use, combine the situation of change of demonstration ball, make clear and definite meaning and the application method of knowing operator number and digit in the addition and subtraction operation process of student. The utility model discloses a demonstration ball quantity's change in the show box, the formula conversion that will abstract difficult understanding is for the clear and definite audio-visual bobble in the reality to made things convenient for student's understanding, the demonstration ball is inside this device moreover, can not therefrom drop and cause the loss, has also avoided being lost the back by partial student as snacks mistake clothes. In addition, in the use, can freely be operated by the student, independently use according to calculating the formula, for traditional teaching mode, increased classroom teaching's interest, be favorable to the promotion of teaching effect.

In addition, the utility model discloses the addition subtraction learning of primary school's mathematics that above-mentioned technical scheme provided still has following technical characteristic:

as an optimized scheme of the utility model, first conveyor includes first transport frame, first baffle, first push rod, first spring, first transport frame is in under the first export, the second entry with first export is not relative, only can hold one in the first transport frame the demonstration ball, first transport frame side has first push rod, first transport frame side has first baffle, first push rod with there is first spring between the bin, promotes first transport frame can make first transport frame with the second entry is relative, first baffle is right first export is sheltered from.

As an optimized scheme of the utility model, there is first spout the both sides of second entry, there is first lug the both sides of first transport frame, first lug is in slide in the first spout.

As an optimized scheme of the utility model, the second conveyor includes that the second carries frame, second baffle, second push rod, second spring, the frame is carried to the second directly over the third entry, the second export with the third entry is not relative, only can hold one in the frame is carried to the second demonstration ball, the frame side is carried to the second has the second push rod, there is first baffle second carries the frame side, the second push rod with there is the second spring between the show case, there is the third baffle the side of third entry, promotes the frame is carried to the second can make the frame is carried to the second with the second export is relative, the second baffle cancellation is right the sheltering from of second export, the third baffle is right the lower extreme of frame is carried to the second shelters from.

As an optimized scheme of the utility model, there is the second spout side of third entry, there is the second lug both sides of frame is carried to the second, the second lug is in slide in the second spout.

As a preferred scheme of the utility model, hoisting device includes shell, conveyer belt, pivot, handle, both ends horizontal direction respectively has a pivot about in the shell, the conveyer belt twines simultaneously in two in the pivot, evenly distributed has the delivery board on the conveyer belt, the below have in the pivot to be connected with the handle rotates the handle can make the conveyer belt motion.

As an optimized scheme of the utility model, hoisting device's upper end with connect through the input tube between the first entry for the demonstration ball of promotion along the input tube rolls to first entry.

As a preferred scheme of the utility model, can dismantle on the shell and be connected with the motor, the main shaft of motor with the pivot is connected and is carried out coaxial rotation.

Compared with the prior art, the beneficial effects of the utility model reside in that:

according to the device of this application, compare with the mode that the teacher adopted the stick to carry out addition and subtraction teaching in current classroom, this device is more directly perceived clear, this device uses the quantity of demonstration ball in the show case as the benchmark, can realize the quantity increase and reduction of demonstration ball in the show case through pressing first conveyor and second conveyor, thereby add and subtract in corresponding the formula, combine together this device with actual formula, the change process of demonstration ball quantity is exactly the calculation process of formula, thereby be favorable to the student to understand the calculation of addition and subtraction, in addition, the increase and the reduction of demonstration ball quantity need not the people to go to put into and take out with the hand in the show case, thereby avoided constantly getting the trouble of putting, also avoided getting many times and put the confusion that causes, and the influence to the certainty, also can not produce the sight interference to the student. The utility model provides a demonstration ball uses in a confined environment, the condition that the demonstration ball lost can not appear, so the process of demonstration is accurate relatively, has also avoided the demonstration ball to be picked up the condition of eating by mistake after losing moreover. The use of this device can be independently operated by the student according to the formula, has certain interest, can understand the in-process of addition and subtraction at the in-process of playing, is favorable to the promotion of teaching effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural view of the storage box, the first conveying device and the display box of the present invention;

FIG. 4 is a schematic structural view of the display box, the second conveying device, the output pipe and the lifting device of the present invention;

fig. 5 is a schematic structural view of a first conveying device of the present invention;

fig. 6 is a schematic structural view of a second conveying device of the present invention;

fig. 7 is a schematic structural view of the lifting device of the present invention;

fig. 8 is a schematic structural view of the lifting device of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

1 base, 101 first groove, 2 storage box, 201 first outlet, 202 first inlet, 3 first conveying device, 301 first conveying frame, 3011 first projection, 302 first baffle, 303 first push rod, 304 first spring, 4 display box, 401 second inlet, 4011 first chute, 4012 fourth baffle, 402 second outlet, 403 second groove, 5 second conveying device, 501 second conveying frame, 5012 second projection, 502 second baffle, 503 second push rod, 504 second spring, 6 output tube, 601 third inlet, 6011 third baffle, 6012 second chute, 602 third outlet, 7 lifting device, 704

housing

701, 702 conveying belt, 7021 conveying plate, 703 rotation shaft, handle, 705 motor, 7051 plunger, 8 demonstration ball, 9 input pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An addition and subtraction learner for primary mathematics according to some embodiments of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1-2, according to some embodiments of the present invention, there is provided a primary school mathematics addition and subtraction learning device, including: the demonstration ball comprises a base 1, a storage box 2, a first conveying device 3, a display box 4, a second conveying device 5, an output pipe 6, a lifting device 7 and a demonstration ball 8.

As shown in fig. 3, the storage tank 2 is a square funnel-shaped shell, a plurality of demonstration balls 8 are arranged in the storage tank 2, a first outlet 201 is arranged below the storage tank 2, and the inner diameter of the first outlet 201 is slightly larger than that of the demonstration balls 8, so that only a single demonstration ball 8 can sequentially flow out of the first outlet 201. The display box 4 is arranged below the first outlet 201, the display box 4 is a square funnel-shaped shell, the second inlet 401 is arranged above the display box 4, the second inlet 401 is not opposite to the first outlet 201, the first conveying device 3 is arranged between the first outlet 201 and the second inlet 401, the demonstration balls 8 flowing out of the first outlet 201 can be sent to the second inlet 401 by the first conveying device 3, the demonstration balls 8 in the storage box 2 can be sent into the display box 4 through the second inlet 401 one time by the first conveying device 3 every time, the display box 4 is made of transparent materials, and the number of the demonstration balls 8 in the display box 4 can be seen from the outer side.

As shown in fig. 4, a second outlet 402 is arranged below the display box 4, the diameter of the second outlet 402 is slightly larger than that of the demonstration ball 8, an output pipe 6 is arranged below the display box 4, the output pipe 6 is a pipe inclined to the lower side, a third inlet 601 is arranged above the output pipe 6, the second outlet 402 is not opposite to the third inlet 601, a second conveying device 5 is arranged between the second outlet 402 and the third inlet 601, the second conveying device 5 can convey the demonstration balls 8 flowing out of the second outlet 402 into the output pipe 6 through the third inlet 601 one at a time, a third outlet 602 at the other end of the output pipe 6 is connected below the lifting device 7, the demonstration balls 8 entering the output pipe 6 slide to the lower side of the lifting device 7, and the lifting device 7 can lift the demonstration balls 8 below upwards. The upper end of hoisting device 7 is connected to the first entry 202 department of bin 2 through input pipeline 9, demonstration ball 8 can be carried back to the storage box through first entry 202, thereby accomplish the recovery of demonstration ball 8, output tube 6, display box 4, hoisting device 7 all has the landing leg, the first recess 101 that has set up in advance on the base 1, output tube 6, display box 4, hoisting device 7's landing leg can insert the first recess 101 on the base 1 and carry out fixed connection, bin 2 also has the landing leg, the landing leg is inserted in the second recess 403 that the top of display box 4 was reserved, demonstration ball 8 can be at bin 2, display box 4, output tube 6, hoisting device 7 mesocycle motion, the change of the demonstration ball 8 quantity in display box 4 is realized.

As shown in fig. 5, the first conveying device 3 includes a first conveying frame 301, a first baffle 302, a first push rod 303, and a first spring 304, the first conveying frame 301 is a square frame, the first conveying frame 301 is right below the first outlet 201, normally open to the first outlet 201, the second inlet 401 is not opposite the first outlet 201, can avoid the demonstration balls in the storage box 2 from directly falling into the display box 4, the first conveying frame 301 can only contain one demonstration ball 8, the first push rod 303 is arranged on the side surface of the first conveying frame 301, the first baffle 302 is arranged on the same side surface of the first conveying frame 301, the first push rod 303 is connected with the storage box 2 in a sliding way, and the first spring 304 is arranged between the first push rod 303 and the storage box 2, so that the first conveyance frame 301 may be opposed to the second entrance 401 when the first conveyance frame 301 is pushed, so that the demonstration ball 8 enters the display box 4 while the first baffle 302 shields the first outlet 201 from dropping. There are first spout 4011 in the both sides of second entry 401, and the downside has fourth baffle 4012 to avoid the drop of demonstration ball 8 between first spout 4011, and there is first lug 3011 the both sides of first transport frame 301, and first lug 3011 slides in first spout 4011 for first transport frame 301 has gliding stability.

As shown in fig. 6, the second conveying device 5 includes a second conveying frame 501, a second baffle 502, a second push rod 503, and a second spring 504, the second conveying frame 501 is directly above the third entrance 601, the second exit 402 is not opposite to the third entrance 601, only one demonstration ball 8 can be accommodated in the second conveying frame 501, the second push rod 503 is arranged on the side of the second conveying frame 501, the second baffle 502 is arranged on the side of the second conveying frame 501 opposite to the second push rod 503, the second push rod 503 is slidably connected to the display box 4, the second spring 504 is arranged between the second push rod 503 and the display box 4, a third baffle 6011 is arranged on the same side of the third entrance 601 and the second baffle 502, the second conveying frame 501 can be opposite to the second exit 402 by pushing the second conveying frame 501, the second baffle 502 cancels the shielding of the second exit 402, the third baffle 6011 shields the lower end of the second conveying frame 501, at this time, the demonstration ball 8 in the display box 4 falls into the second demonstration frame 501, when the second push rod 503 is released and rebounded, the demonstration ball 8 is brought into the output pipe 6. The third inlet 601 has a second sliding groove 6012 at a side surface thereof, and the second conveying frame 501 has second protrusions 5012 at both sides thereof, and the second protrusions 5012 slide in the second sliding groove 6012, so that the second conveying frame 501 has stability of sliding.

As shown in fig. 7-8, the lifting device includes a housing 701, a conveyor belt 702, a rotating shaft 703, a handle 704, the housing 701 is a cubic housing, a cylindrical rotating shaft 703 is respectively arranged in the horizontal direction of the upper end and the lower end of the housing 701, the conveyor belt 702 is an annular belt, the conveyor belt 702 is simultaneously wound on the two rotating shafts 703, conveying plates 7021 are uniformly distributed on the conveyor belt 702, the handle 704 is connected to the rotating shaft 703 of the lower part, the conveyor belt 702 can move by rotating the handle 704, and then the conveying plates 7021 are driven to move, so that the demonstration balls 8 below can be lifted upwards, the conveying plates 7021 are slightly inclined downwards, and the demonstration balls 8 can automatically roll off the conveying plates 7021 after being lifted to a high place. In addition, the housing 701 is connected with the motor 705 in an inserting manner, the motor 705 is provided with an inserting rod 7051 which can be inserted into a hole reserved on the housing 701, a main shaft of the motor 705 is connected with the lower rotating shaft 703 to rotate coaxially, the main shaft of the motor 705 is triangular, the lower rotating shaft 703 is provided with a triangular hole, and the main shaft can be inserted into the triangular hole.

The using method comprises the following steps: during the use, there are a plurality of demonstration balls 8 in the bin 2, and one of them demonstration ball 8 can enter into the first transport frame 301 of first export 201 below under the action of gravity, promotes first push rod 303 for first transport frame 301 removes, and demonstration ball 8 can enter into show case 4 from second entry 401, loosens first push rod 303 and can make first transport frame 301 automatic re-setting, realizes the interpolation of demonstration ball 8 in the show case 4. The second push rod 503 is pushed, so that the second conveying frame 501 reaches the lower part of the second outlet 402, one demonstration ball 8 in the display box 4 enters the second conveying frame 501 under the action of gravity, the second push rod 503 is loosened, the second conveying frame 301 resets, the second conveying frame 501 is arranged above the third inlet 601, the demonstration ball 8 enters the output pipe 6 and enters the lower part of the lifting device 7, the manual rotating handle 704 or the motor 705 is used for driving, the rotating shaft 703 can rotate, the conveying belt 702 is used for moving to enable the demonstration ball 8 to ascend, the ascending demonstration ball 8 enters the storage box 2 through the input pipe 9 and the first inlet 202, and the collection of the demonstration balls is realized. In teaching, when addition operation is carried out, the first conveying device 3 is pressed for several times, the demonstration balls 8 are added into the display box 4, when subtraction operation is carried out, the second conveying device 5 is pressed for several times, the demonstration balls 8 are reduced into the display box 4, and students can understand the meaning of the addition and subtraction operation process by combining the quantity change of the demonstration balls 8 in the display box 4 and an equation.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance: the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An addition and subtraction learning device for primary mathematics is characterized by comprising: base, bin, first conveyor, show case, second conveyor, output tube, hoisting device, demonstration ball, have in the bin the demonstration ball, there is first export the below of bin, there is the show case the below of first export, there is the second entry show case top, first export with have between the show case first conveyor, the show case is transparent material, there is the second export show case below, there is the output tube below of second export, there is the third entry output tube above, the second export with have between the output tube second conveyor, the third export of the other end of output tube is connected to the hoisting device below, the demonstration ball in the output tube can enter into in the hoisting device, the hoisting device can with the demonstration ball promotes, the upper end of hoisting device is connected to the first entry of bin, the demonstration ball can pass through the first entry of bin is sent back in the bin, the output tube the display box hoisting device is connected on the base, the bin is connected the display box top, the demonstration ball is in the bin the display box hoisting device intermediate cycle motion.

2. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: first conveyor includes first transport frame, first baffle, first push rod, first spring, first transport frame is in under the first export, the second entry with first export is not relative, only can hold one in the first transport frame the demonstration ball, first transport frame side has first push rod, first transport frame side has first baffle, first push rod with there is first spring between the bin.

3. The addition and subtraction learning device for primary school mathematics according to claim 2, characterized in that: first chutes are formed in two sides of the second inlet, first protruding blocks are formed in two sides of the first conveying frame, and the first protruding blocks slide in the first chutes.

4. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the second conveying device comprises a second conveying frame, a second baffle, a second push rod and a second spring, the second conveying frame is arranged right above a third inlet, a second outlet is not opposite to the third inlet, only one demonstration ball can be contained in the second conveying frame, the second push rod is arranged on the side face of the second conveying frame, the first baffle is arranged on the side face of the second conveying frame, the second spring is arranged between the second push rod and the demonstration box, and the third baffle is arranged on the side face of the third inlet.

5. The addition and subtraction learning device for primary school mathematics according to claim 4, characterized in that: and a second sliding groove is formed in the side surface of the third inlet, second convex blocks are arranged on two sides of the second conveying frame, and the second convex blocks slide in the second sliding groove.

6. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the lifting device comprises a shell, conveying belts, rotating shafts and handles, wherein the rotating shafts are respectively arranged at the upper end and the lower end of the shell in the horizontal direction, the conveying belts are wound on the two rotating shafts simultaneously, conveying plates are uniformly distributed on the conveying belts, and the rotating shafts below the conveying belts are connected with the handles.

7. The addition and subtraction learning device for primary school mathematics according to claim 1, characterized in that: the upper end of the lifting device is connected with the first inlet through an input pipeline.

8. The addition and subtraction learning device for primary school mathematics according to claim 6, characterized in that: the shell is detachably connected with an electric motor, and a main shaft of the electric motor is connected with the rotating shaft to rotate coaxially.