Primary school mathematics oral calculation training turntable

Abstract

The utility model discloses a primary school mathematics oral calculation training turntable, which belongs to the technical field of mathematics teaching aids and comprises a fixing seat for fixing, a storage box for storing primary school mathematics oral calculation training teaching aids and a turntable for oral calculation training. A plurality of sliding rails used for moving are arranged on the surface of the rotating disc, the sliding rails are connected with an outer circle number plate, an identifier plate and an inner circle number plate in a sliding mode, ten Arabic numerals are engraved on the outer circle number plate and the inner circle number plate respectively, and four operation symbols used for mathematical operation are etched on the surface of the identifier plate. The outer side wall of the turntable is also provided with interval indication marks for interval operation prompting; and the interval indication marks, the outer circle number plate, the identifier plate and the inner circle number plate are respectively marked by adopting different striking colors. According to the utility model, through the arrangement of different colors and the cooperation of the interval indication marks, the examination question determination during the training can be effectively assisted, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mathematical teaching aids, and in particular to a turntable for elementary school mental arithmetic training. Background Technology

[0002] Mental arithmetic training refers to improving students' mathematical calculation abilities by performing addition, subtraction, multiplication, and division on different numbers. Existing mental arithmetic training devices for elementary school students use a jumble of numbers and symbols to avoid recurring patterns over time. However, the mixed numbers and symbols inside the rotating disc can easily lead to errors and omissions during calculations, resulting in poor practicality.

[0003] A search revealed a Chinese patent document (authorization announcement number CN205264155U) describing a mathematical arithmetic turntable. The turntable includes a central disk, surrounded by a first, second, third, and fourth annular disks arranged sequentially outwards. These annular disks are joined together by grooves and corresponding protrusions around adjacent disks. Ten characters are evenly distributed around the central, first, second, third, and fourth annular disks, each written on a detachable magnetic sheet. The ten characters consist of the digits 0-9 and any ten of the four arithmetic operators +, -, ×, and ÷. The turntable is made of magnetic material. This device solves the problem of existing devices being unable to transform numbers. However, the device still suffers from a mixture of numbers and symbols during use, which can easily lead to students misreading or overlooking certain information during calculations, reducing its practicality. Utility Model Content

[0004] The purpose of this invention is to provide a spinner for elementary school math mental arithmetic training to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a primary school math mental arithmetic training turntable, including a fixed base for fixing, a storage box for storing primary school math mental arithmetic training teaching aids on the top of the fixed base, a turntable for mental arithmetic training on the top of the fixed base, a plurality of sliding rails for moving on the surface of the turntable, an outer ring number plate, an identifier plate and an inner ring number plate slidably connected to the sliding rails respectively, ten Arabic numerals engraved on the outer ring number plate and the four operation symbols for mathematical operations etched on the surface of the identifier plate, and interval indicator marks for interval operation prompts on the outer side wall of the turntable, the interval indicator marks, the outer ring number plate, the identifier plate and the inner ring number plate are marked with different eye-catching colors respectively.

[0006] As a preferred embodiment, the center of the turntable is also provided with a settlement disc for displaying the results of mental arithmetic training, and the surface of the settlement disc is provided with a prominent indicator box.

[0007] As a preferred implementation, the middle of the settlement round plate is further provided with two groups of plug holes arranged at equal intervals, and the plug holes are arranged inside the indication frame.

[0008] As a preferred implementation, the other side of the rotating disc is rotatably connected with a connecting column facilitating stable operation of the rotating disc, and the side wall of the connecting column is fixed with a U-shaped connecting frame.

[0009] As a preferred implementation, the bottom of the connecting frame is fixed with an adjusting rod capable of being adjusted in height, and the fixed part of the adjusting rod is welded with the top of the fixing seat.

[0010] As a preferred implementation, the storage box arranged at the top of the fixing seat is located at one side of the adjusting rod, and the bottom of the fixing seat is further provided with four symmetrical suction cups for fixation.

[0011] As a preferred implementation, the inside of the storage box is slidably connected with two groups of symmetrical pull-out boxes, the side wall of the two groups of pull-out boxes is welded with a T-shaped sliding plate, and the side wall of the sliding plate is slidably connected with the slide arranged on the inner wall of the storage box.

[0012] As a preferred implementation, the end of the pull-out box is provided with a groove facilitating pulling force, and the inside of the pull-out box is further provided with a plurality of two-color marked round rods, and the end of the round rod is slidably connected with the inner wall of the plug hole.

[0013] Compared with the prior art, the technical effects and advantages of the present application are:

[0014] The primary school mathematics mental arithmetic training rotating disc is provided with interval indication marks on the side wall of the rotating disc, which assists pupils in quickly positioning the number formula displayed by the corresponding interval indication marks for operation when using the device, and avoids students from making mistakes;

[0015] The interval indication marks, the outer ring number plate, the identifier and the inner ring number plate are all marked with corresponding and different bright colors, which can effectively distinguish the above structures, and the outer ring number plate, the identifier and the inner ring number plate are slidably arranged on the slide rail arranged on the side wall of the rotating disc, which can flexibly adjust different number formulas.

[0016] The middle of the rotating disc is provided with a settlement round plate for displaying the result of number formula operation, the inside of the settlement round plate is provided with an indication frame, the inside of the indication frame is divided into two number value intervals, each number value interval is provided with ten plug holes arranged at equal intervals, the connection of the round rod and the plug hole is manually operated by students to complete the writing of the number formula settlement structure, and the result is convenient for conclusion judgment.

[0017] The primary school mathematics oral calculation training turntable, in order to avoid the scattering and loss of the round rod when the device is used, a storage box is welded on the top of the base and located on one side of the adjusting rod, two layers of extraction boxes are arranged at equal intervals in the storage box, grooves are arranged at the ends of the extraction boxes, the arrangement of the grooves facilitates the extraction of the extraction boxes in the storage box, T-shaped sliding plates are welded on the two sides of the extraction boxes, and the sliding plates are connected with the slide arranged in the storage box;

[0018] In order to distinguish the round rods with different marks in the extraction boxes, the round rods can be placed in different extraction boxes, so that the device is more convenient to use, and the practicability of the device is improved.

[0019] The device solves the problem that the students using the device are prone to misreading and missing when performing formula calculation, and improves the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 It is a structure schematic view of the primary school mathematics oral calculation training turntable of the present application.

[0022] Figure 2 It is a structure schematic view of the present application from another angle.

[0023] Figure 3 It is a structure schematic view of the present application.

[0024] Figure 4 It is a structure schematic view of the present application.

[0025] Figure 5 It is a structure schematic view of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] In the drawings: 1, fixed seat; 2, storage box; 3, adjusting rod; 4, turntable; 5, connecting column; 6, connecting frame; 7, interval indicating mark; 8, outer ring number plate; 9, identifier; 10, inner ring number plate; 11, settlement round plate; 12, jack; 13, extraction box; 14, sliding plate; 15, groove; 16, round rod. DETAILED DESCRIPTION

[0028] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known technical features have not been described in detail in order to avoid obscuring the present application.

[0029] Unless the direction is defined separately, the up, down, left, right, front, back, inner and outer directions mentioned in the present application are based on the up, down, left, right, front, back, inner and outer directions in the drawings of the present application, which are described herein.

[0030] The connection mode can adopt existing modes such as bonding, welding, bolt connection, etc., and the actual needs are accurate.

[0031] A primary school mathematics mental arithmetic training turntable, as shown in Figures 1 to 5 ,

[0032] Comprising:

[0033] A fixing seat 1 for fixing is provided with a negative pressure suction cup at the bottom of the fixing seat 1. Since the primary school mathematics mental arithmetic training turntable device is usually used indoors, in order to ensure the stability of the connection structure of the device and avoid the device from falling due to the crowding of students, a negative pressure suction cup connected with the ground is arranged at the bottom of the device. When used, a certain amount of water vapor needs to be sprayed inside the negative pressure suction cup, and the disassembly is separated from the ground by auxiliary tools.

[0034] The top of the fixing seat 1 is provided with a storage box 2 for storing primary school mathematics mental arithmetic training teaching aids. The storage box 2 is provided with two parallel arranged pull-out boxes 13 on one side. The end of the pull-out box 13 is provided with a groove 15 for facilitating the force during pulling. The two sides of the pull-out box 13 are welded with T-shaped sliding plates 14. The side wall of the sliding plate 14 is slidably connected with the slide of the inner wall of the storage box 2. The connection between the storage box 2 and the pull-out box 13 is completed by moving the pull-out box 13.

[0035] In order to assist students in mental arithmetic training, different color rods 16 are arranged in the inner part of the two pull-out boxes 13. The different color rods 16 are connected with the jacks 12 arranged in the settlement round plate 11, which is convenient for determining and judging the calculation result, and improves the use convenience of the device.

[0036] The top of the fixed seat 1 is also provided with a rotating disc 4 for mental arithmetic training, one side of the rotating disc 4 is provided with a connecting column 5 rotatably connected, the side wall of the connecting column 5 is fixedly provided with a U-shaped connecting frame 6, the bottom of the connecting frame 6 is welded with the moving part of the adjusting rod 3, the fixed part of the adjusting rod 3 is connected with the fixed seat 1, and under the action of the adjusting rod 3, the height of the rotating disc 4 can be adjusted to adapt to the needs of users of different heights, and the structure of the adjusting rod 3 here adopts an electric driving form, which can also be understood as that the adjusting rod 3 belongs to an electric push rod;

[0037] In order to facilitate adjustment, the adjusting rod 3 can be provided as a moving column and a fixed column, the side wall of the fixed column is provided with a connecting groove, the middle part is provided with a sliding hole connected with the moving column, the sliding hole is communicated with the connecting groove, a plurality of equidistantly and uniformly arranged circular holes are arranged on the surface of the moving column, a moving plate is arranged in the connecting groove, the side wall of the moving plate is provided with two symmetrical insertion rods, the insertion rods are connected with the circular holes through the connecting groove, so that the moving column and the fixed column can be connected under the action of the moving plate and the insertion rods. Although the structure is a simple mechanical structure, when applied to mental arithmetic training in primary schools, the height range is not much different, so the service life of the simple structure is longer, and the use of the device is not affected, and the practicability of the device is improved.

[0038] The surface of the rotating disc 4 is provided with a plurality of sliding rails for movement, the sliding rails are respectively and slidably connected with an outer ring number plate 8, an identifier plate 9 and an inner ring number plate 10. In order to ensure that the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 can slide and be fixed, a damping structure is arranged at the connection between the inner part of the sliding rail and the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10, so that the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 can slide on the surface of the rotating disc 4 and be fixed under the action of the damping structure, and the formed number formula can be fixed and calculated.

[0039] The outer ring number plate 8 and the inner ring number plate 10 are respectively engraved with ten Arabic numerals, corresponding to 0~9, 0`9, so that the device can adapt to a wide range of primary school mathematical mental arithmetic training when used, even high grades can be from point to surface, and there is a good training effect;

[0040] The surface of the identifier plate 9 is etched with four operation symbols for mathematical operation, and the operation symbols are +, -, x and ÷, so that the device can complete the operation of the corresponding number formula by adjusting the identifier plate 9 indicated by the corresponding interval indicating mark 7 when used.

[0041] The outer side wall of the rotating disc 4 is further provided with an interval indication mark 7 for interval operation prompt, the interval indication mark 7, the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 are marked by different eye-catching colors respectively, the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 can be more specific through the color setting in a staggered manner, and the interval indication mark 7, the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 are matched and arranged, so that the device can be more flexible during use.

[0042] The rotating disc 4 is a conventional instrument, and the working principle, size and model are irrelevant to the function of the present application, so no more description is made, the structure of the connecting column 5 can be replaced by a driving motor for driving, a controller is arranged in the inner portion of the fixed seat 1 to complete self-driving of the rotating disc 4, and the structure is simple, and no more description is made;

[0043] The control mode of the utility model is controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the power supply also belongs to the public knowledge in the field, and the utility model is mainly used for protecting mechanical devices, therefore the control mode and the circuit connection are not explained in detail.

[0044] Working principle

[0045] The primary school mathematics mental arithmetic training rotating disc is used, the fixed seat 1 is connected with the ground, the drawer box 13 is taken out through the arranged groove 15, the length of the adjusting rod 3 is adjusted according to the height of the user,

[0046] At this time, according to the need of mathematics mental arithmetic training, the rotating disc 4 and the outer ring number plate 8, the identifier plate 9 and the inner ring number plate 10 arranged in the inner portion of the rotating disc 4 are rotated, different numbers and operation symbols are adjusted into the range of the interval indication mark 7, the operation form is determined, after mental arithmetic, the round rod 16 arranged in the drawer box 13 is connected with the jack 12 arranged in the settlement round plate 11, and the determination of the conclusion can be completed.

[0047] It should be noted that, in the present document, relational terms such as one and another and the like can be used solely to distinguish one entity or action from another entity or action without necessarily implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.

[0048] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. A primary school math mental arithmetic training turntable, comprising a fixed base (1) for fixing, a storage box (2) for storing primary school math mental arithmetic training teaching aids on the top of the fixed base (1), and a turntable (4) for mental arithmetic training on the top of the fixed base (1), characterized in that: The surface of the turntable (4) is provided with several sliding rails for movement. The sliding rails are slidably connected to an outer ring number plate (8), an identifier plate (9), and an inner ring number plate (10). The outer ring number plate (8) and the inner ring number plate (10) are engraved with ten Arabic numerals. The surface of the identifier plate (9) is etched with four operation symbols for mathematical operations. The outer wall of the turntable (4) is also provided with an interval indicator (7) for interval operation prompts. The interval indicator (7), the outer ring number plate (8), the identifier plate (9), and the inner ring number plate (10) are marked with different eye-catching colors.

2. The elementary school math mental arithmetic training turntable according to claim 1, characterized in that: The turntable (4) is also provided with a settlement disc (11) in the middle for displaying the results of mental arithmetic training. The surface of the settlement disc (11) is provided with a prominent indicator box.

3. The elementary school math mental arithmetic training turntable according to claim 2, characterized in that: The settlement disc (11) is also provided with two sets of equally spaced sockets (12) in the middle, and the sockets (12) are located inside the indicator frame.

4. The elementary school math mental arithmetic training turntable according to claim 2, characterized in that: The other side of the turntable (4) is rotatably connected to a connecting column (5) to facilitate the stable operation of the turntable (4), and a U-shaped connecting frame (6) is fixed to the side wall of the connecting column (5).

5. A primary school mathematics mental arithmetic training turntable according to claim 4, characterized in that: The bottom of the connecting frame (6) is fixed with an adjusting rod (3) that can be raised and lowered, and the fixed part of the adjusting rod (3) is welded to the top of the fixed seat (1).

6. A primary school mathematics mental arithmetic training turntable according to claim 5, characterized in that: The storage box (2) on the top of the fixed base (1) is located on one side of the adjusting rod (3), and the bottom of the fixed base (1) is also provided with four symmetrically arranged suction cups for fixing.

7. A primary school mathematics mental arithmetic training turntable according to claim 6, characterized in that: The storage box (2) has two sets of symmetrically arranged drawers (13) connected inside. The side walls of the two sets of drawers (13) are welded with T-shaped sliding plates (14). The side walls of the sliding plates (14) are slidably connected to the slide rails set on the inner wall of the storage box (2).

8. A primary school mathematics mental arithmetic training turntable according to claim 7, characterized in that: The drawer box (13) has a groove (15) at its end to facilitate pulling. The drawer box (13) also has several round rods (16) with two-color markings inside. The ends of the round rods (16) are slidably connected to the inner wall of the insertion hole (12).

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