CN217061203U

CN217061203U - Primary school mathematics demonstrator frame body

Info

Publication number: CN217061203U
Application number: CN202220613463.5U
Authority: CN
Inventors: 于桂琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-26
Anticipated expiration: 2032-03-18

Abstract

The application discloses a primary school mathematics demonstrator frame body, which comprises a demonstration table and a demonstration mechanism, wherein the left side and the right side of the demonstration table are respectively and fixedly connected with the bottom ends of the two lifting plates, which are close to each other; demonstration mechanism includes first demonstration board, second demonstration board and third demonstration board, first demonstration board fixed connection connecting plate bottom right side, second demonstration board fixed connection connecting plate bottom center department. Corresponding digital cards are found out in the third containing box, fixing of the digital cards on the third demonstration board is achieved through magic tape and adhesion of the upper magic tape, corresponding digital cards in the second containing box are fixed on the second demonstration board in the same way, corresponding operation symbols are selected through rotation of the symbol cards, operation results can be obtained through cooperation of teachers and students, corresponding digital cards are found out in the first containing box and adhered to the first demonstration board, the fun of a classroom is increased, and the complexity of smearing and wiping on a blackboard by teachers is avoided.

Description

Primary school mathematics demonstrator frame body

Technical Field

The application relates to the field of primary school mathematics, in particular to a primary school mathematics demonstrator support body.

Background

Primary school mathematics is a series of knowledge converted by teaching materials, calculation formulas of figures and lengths and units to teach children about the understanding of numbers, four arithmetic operations, and lays a good mathematical foundation for the calculation of junior middle school and daily life. From the psychological point of view of mathematics learning of students, the learning process of students is not a passive absorption process, but a reconstruction process based on the existing knowledge and experience.

The teaching of four arithmetic needs to be frequently carried out in the primary school mathematics teaching process, and at present, a teacher needs to write four arithmetic frequently on a blackboard, which wastes time and labor and is easy to cause fussy and uninteresting classroom. Therefore, the primary school mathematics demonstrator frame body is provided for solving the problems.

Disclosure of Invention

The embodiment provides a primary school mathematics demonstrator frame body for solving the problem that teachers in the prior art can only manually scribble and wipe on a blackboard to carry out operation teaching.

According to one aspect of the application, the primary school mathematics demonstrator comprises a demonstration table and a demonstration mechanism, wherein the left side and the right side of the demonstration table are respectively fixedly connected with the bottom ends of the sides, close to each other, of two lifting plates;

the demonstration mechanism comprises a first demonstration board, a second demonstration board and a third demonstration board, the first demonstration board is fixedly connected with the right side of the bottom end of the connecting board, the second demonstration board is fixedly connected with the center of the bottom end of the connecting board, the third demonstration board is fixedly connected with the left side of the bottom end of the connecting board, symbol cards are arranged between the second demonstration board and the third demonstration board, four symbol cards are arranged, the centers of the front sides of the four symbol cards are respectively provided with symbols of +, -x and/or +/V, the four symbol cards are respectively sleeved on the outer wall of the connecting shaft through the rotation of a steel ring, a symbol of ═ is arranged between the first demonstration board and the second demonstration board, the left end and the right end of the front side of the first demonstration board are respectively embedded with an upper magic tape, the front side of the second demonstration board is provided with an upper magic tape, the front side of the third demonstration board is provided with an upper magic tape, a plurality of groups of the upper magic tapes are respectively adhered with lower magic tapes, the lower magic tapes are respectively arranged at the rear side of the digital card, the digital card is provided with five groups, and each group of digital cards is respectively provided with ten digital cards.

Furthermore, one side of each group of digital cards is respectively provided with a label, and each group of labels is sequentially set to be 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0.

Further, the first case that holds of demonstration bench top right side fixed connection, two groups of digital cards have been held in the first incasement that holds, demonstration bench top center department fixed connection second holds the case, the second holds the incasement and has held a group of digital card, demonstration bench top left side fixed connection third holds the case, the third holds the incasement and has held two groups of digital cards.

Furthermore, two first threaded rods are respectively in threaded sleeve joint with the inner cavity at the bottom end of the lifting plate, the bottom ends of the first threaded rods are respectively fixedly connected with the top end of the driven shaft, the bottom ends of the driven shaft are respectively rotatably connected with the top end of the transverse plate, and one side, close to the transverse plate, of the transverse plate is respectively fixedly connected with one side, away from the two foot rests, of the transverse plate.

Furthermore, the outer walls of the two driven shafts are fixedly sleeved with first bevel gears respectively, the two first bevel gears are meshed with second bevel gears respectively, the two second bevel gears are fixedly sleeved at one ends of the driving shafts respectively, and the other ends of the two driving shafts are fixedly connected with the output ends of the double-shaft motors respectively.

Furthermore, the top end of the double-shaft motor is fixedly connected with the center of the bottom end of the fixed plate, and the left side and the right side of the fixed plate are respectively fixedly connected with the top end of one side, close to each other, of the two foot rests.

Furthermore, two the rotation motor has been inlayed respectively to diaphragm bottom one side, two rotate motor output difference fixed connection second threaded rod top, two second threaded rod bottom rotates respectively and connects bottom plate top one side.

Furthermore, one side that two bottom plates are close to each other is the one side bottom that two foot rests were kept away from each other of fixed connection respectively, two the bottom plate runs through the pulley respectively.

And further, the outer wall of the second threaded rod is respectively in threaded sleeve connection with a threaded sleeve plate, the threaded sleeve plate is mutually close to one side of the mounting plate, the two sides of the mounting plate are respectively provided with a pulley.

Furtherly, two fixed connection stopper, two do not are in the one side center punishment that the screw sleeve board was kept away from to the mounting panel, and are two sets of the stopper slides respectively and cup joints at spacing inslot chamber, two the spacing groove is vertical respectively to inlay in one side that two foot rests kept away from each other.

Through the embodiment of the application, the demonstration mechanism is adopted, the problem that a teacher can only conduct operation teaching through manual scribbling and wiping on a blackboard is solved, and convenience of teaching is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

fig. 3 is an enlarged view of the inner structure of the second containing box according to an embodiment of the present application.

In the figure: 1. a demonstration table; 2. a first containing box; 3. a second containing box; 4. a lifting plate; 5. applying a magic tape; 6. a connecting plate; 7. a first demonstration board; 8. a second demonstration board; 9. a connecting shaft; 10. a symbol card; 11. a third demonstration board; 12. a third containing box; 13. a first threaded rod; 14. a first bevel gear; 15. a driven shaft; 16. a second bevel gear; 17. a transverse plate; 18. a pulley; 19. mounting a plate; 20. a limiting block; 21. a limiting groove; 22. a foot rest; 23. a drive shaft; 24. a double-shaft motor; 25. a fixing plate; 26. a base plate; 27. a threaded bushing plate; 28. a second threaded rod; 29. rotating the motor; 30. a magic tape is arranged; 31. a digital card; 32. a label; 33. and (c) a symbol.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-3, a frame body of a primary school mathematics demonstration device comprises a demonstration table 1 and a demonstration mechanism, wherein the left side and the right side of the demonstration table 1 are respectively fixedly connected with the bottom ends of the two adjacent lifting plates 4;

the demonstration mechanism comprises a first demonstration board 7, a second demonstration board 8 and a third demonstration board 11, the first demonstration board 7 is fixedly connected with the right side of the bottom end of the connecting board 6, the second demonstration board 8 is fixedly connected with the center of the bottom end of the connecting board 6, the third demonstration board 11 is fixedly connected with the left side of the bottom end of the connecting board 6, symbol cards 10 are arranged between the second demonstration board 8 and the third demonstration board 11, four symbol cards 10 are provided, the centers of the front sides of the four symbol cards 10 are respectively provided with symbols of +, -, × and/or div, the four symbol cards 10 are respectively sleeved on the outer wall of the connecting shaft 9 through the rotation of a steel ring, a symbol 33 is arranged between the first demonstration board 7 and the second demonstration board 8, the left end and the right end of the front side of the first demonstration board 7 are respectively embedded with a magic sticker 5, the front side of the second demonstration board 8 is provided with an upper magic sticker 5, the front side of the third demonstration board 11 is provided with an upper magic sticker 5, the multiple groups of the upper magic tapes 5 are respectively adhered with the lower magic tapes 30, the multiple groups of the lower magic tapes 30 are respectively arranged at the rear side of the digital card 31, the digital card 31 is provided with five groups, and each group of the digital card 31 is respectively provided with ten pieces.

Each group of the digital cards 31 is respectively provided with a label 32 on one side, each group of the labels 32 is sequentially arranged as ' 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 8 ', 9 ', 0 ', the corresponding digital cards 31 can be conveniently found out through the labels 32, the right side of the top end of the demonstration table 1 is fixedly connected with the first containing box 2, two groups of the digital cards 31 are contained in the first containing box 2, the center of the top end of the demonstration table 1 is fixedly connected with the second containing box 3, one group of the digital cards 31 is contained in the second containing box 3, the left side of the top end of the demonstration table 1 is fixedly connected with the third containing box 12, the third containing box 12 is internally contained with two groups of the digital cards 31, the digital cards 31 can be conveniently contained, the inner cavities at the bottom ends of the two lifting plates 4 are respectively in threaded sleeve connection with the first threaded rods 13, the bottom ends of the two first driven shafts 13 are respectively fixedly connected with the top end of the driven shaft 15, the bottom ends of the two transverse plates 15 are respectively rotatably connected with the top end of the 17, two one side that diaphragm 17 is close to each other is the one side that two foot rests 22 kept away from each other of fixed connection respectively, rotates through driven shaft 15 and drives first threaded rod 13 and rotate, two driven shaft 15 outer wall is fixed socket joint first bevel gear 14 respectively, two first bevel gear 14 meshes cooperation second bevel gear 16 respectively, two second bevel gear 16 is fixed socket joint respectively in driving shaft 23 one end, two driving shaft 23 other end fixed connection biax motor 24 output respectively drives two driven shafts 15 through biax motor 24 output and rotates, biax motor 24 top fixed connection fixed plate 25 bottom center department, the fixed plate 25 left and right sides is the one side top that two foot rests 22 are close to each other of fixed plate 25 fixed connection respectively. The fixing of the double-shaft motor 24 is facilitated, the rotating motor 29 and the rotating motor 29 are respectively embedded at one side of the bottom end of the transverse plate 17, the output end of the rotating motor 29 is respectively fixedly connected with the top end of the second threaded rod 28, the bottom end of the second threaded rod 28 is respectively rotatably connected with one side of the top end of the bottom plate 26, the output end of the rotating motor 29 drives the second threaded rod 28 to rotate, one side of the bottom plate 26, which is close to each other, is respectively fixedly connected with the bottom end of one side, which is far away from each other, of the two foot rests 22, the two bottom plates 26 respectively penetrate through the pulleys 18, the outer walls of the two second threaded rods 28 are respectively in threaded sleeve connection with the threaded sleeve plates 27, one side of the two threaded sleeve plates 27, which is close to each other, is respectively fixedly connected with one side of the mounting plate 19, the pulleys 18 are respectively installed at the front side and the rear side of the bottom end of the two mounting plates 19, the lifting of the threaded sleeve plates 27 is driven by the rotation of the second threaded rod 28, and the two mounting plates 19 are respectively fixedly connected with the limiting blocks 20 at the center of one side, which is far away from the threaded sleeve plates 27, the two sets of limiting blocks 20 are respectively sleeved in the inner cavities of the limiting grooves 21 in a sliding manner, the two limiting grooves 21 are respectively vertically embedded in one sides, far away from each other, of the two foot rests 22, and the movement or fixation of the device is controlled through the pulleys 18.

When the utility model is used, the electric elements appearing in the application are externally connected with a power supply and a control switch when in use, a teacher can find out the corresponding digital card 31 in the third containing box 12 and can fix the digital card 31 on the third demonstration board 11 by the adhesion of the lower magic tape 30 and the upper magic tape 5, the corresponding digital card 31 in the second containing box 3 is fixed on the second demonstration board 8 in the same way, then the symbol card 10 is rotated to select the corresponding operation symbol, finally, the operation result can be obtained by the cooperation of the teacher and the student, the corresponding digital card 31 is found out from the first containing box 2 and is adhered on the first demonstration board 7, the fun of the classroom is increased, the tedious nature of smearing on the blackboard by the teacher is avoided, and the digital cards 31 are respectively contained in the first containing box 2, the second containing box 3 and the third containing box 12, the digital card 31 can be prevented from being polluted by dust, by starting the double-shaft motor 24, the output end of the double-shaft motor 24 drives the driving shaft 23 to rotate, the driving shaft 23 drives the second bevel gear 16 to rotate, the first bevel gear 14 meshed and matched with the second bevel gear 16 rotates along with the first bevel gear 14, the first bevel gear 14 drives the driven shaft 15 to rotate, the driven shaft 15 drives the first threaded rod 13 to rotate, the two lifting plates 4 in threaded fit with the first threaded rod 13 limit each other to drive the demonstration table 1 to adjust the height, so that the height of the demonstration table 1 can be adjusted to be suitable for different student arithmetic operations, by starting the two rotating motors 29, the output ends of the rotating motors 29 respectively drive the second threaded rods 28 to rotate, and the threaded sleeve plates 27 in threaded fit with the second threaded rods 28 respectively drive the mounting plate 19 to move in the vertical direction under the matching limit of the limiting blocks 20 and the limiting grooves 21, the mounting plate 19 drives the pulley 18 to move in the vertical direction, so that the height of the pulley 18 can be adjusted according to requirements, when the pulley 18 descends and contacts the ground, the device is driven to move to a designated teaching place, and when the pulley 18 ascends and separates from the ground, the device is fixed in the designated teaching place under the cooperation of the bottom plate 26 and the foot stool 22, and the practicability of the device is improved.

The application has the advantages that:

1. the method is simple to operate, the digital card is fixed on the third demonstration board by finding out the corresponding digital card in the third containing box, the digital card is fixed on the second demonstration board by adhering the lower magic tape and the upper magic tape, the corresponding digital card in the second containing box is fixed on the second demonstration board by the same principle, then the corresponding operation symbol is selected by rotating the symbol card, finally, the operation result can be obtained by the cooperation of a teacher and a student, the corresponding digital card is found out from the first containing box and adhered on the first demonstration board, the fun of a classroom is increased, the complicacy of smearing and wiping by the teacher on a blackboard is avoided, the digital cards are respectively contained in the first containing box, the second containing box and the third containing box, and dust pollution to the digital card can be avoided;

2. the height adjusting device is reasonable in structure, the output end of the double-shaft motor drives the driving shaft to rotate by starting the double-shaft motor, the driving shaft drives the second bevel gear to rotate, the first bevel gear meshed and matched with the second bevel gear rotates along with the second bevel gear, the first bevel gear drives the driven shaft to rotate, the driven shaft drives the first threaded rod to rotate, the two lifting plates in threaded matching with the first threaded rod limit each other, and the height adjusting device drives the height adjusting device to adjust the height of the demonstration table together, so that the height adjusting device can be used for different student operation operations;

3. this application is through starting two rotation motors, it rotates the motor output and drives the second threaded rod rotation respectively, and the screw sleeve board with second threaded rod screw-thread fit is respectively under the cooperation restriction of stopper and spacing groove, it removes at vertical direction to drive the mounting panel, the mounting panel drives the pulley and removes at vertical direction, make the height of pulley adjust according to the demand, when the pulley height descends and contacts with the ground, drive arrangement removes appointed teaching place, when the pulley height rises and breaks away from ground, the device is fixed in appointed teaching place under the cooperation of bottom plate and foot rest, the practicality of device has been increased.

The present application relates to circuits and electronic components and modules, all of which are well within the skill of those in the art and, needless to say, does not relate to software or process improvements.

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

Claims

1. The utility model provides a primary school's mathematics demonstration ware support body which characterized in that: the demonstration device comprises a demonstration table (1) and a demonstration mechanism, wherein the left side and the right side of the demonstration table (1) are respectively fixedly connected with the bottom ends of the two lifting plates (4) which are close to each other;

the demonstration mechanism comprises a first demonstration board (7), a second demonstration board (8) and a third demonstration board (11), the first demonstration board (7) is fixedly connected with the right side of the bottom end of a connecting board (6), the second demonstration board (8) is fixedly connected with the center of the bottom end of the connecting board (6), the third demonstration board (11) is fixedly connected with the left side of the bottom end of the connecting board (6), symbol cards (10) are arranged between the second demonstration board (8) and the third demonstration board (11), the number of the symbol cards (10) is four, the centers of the front sides of the four symbol cards (10) are respectively provided with symbols of +, +, -, × and/or u, the four symbol cards (10) are respectively sleeved on the outer wall of a connecting shaft (9) through the rotation of a steel ring, a symbol (33) is arranged between the first demonstration board (7) and the second demonstration board (8), and magic tapes (5) are respectively embedded at the left end and the right end of the front side of the first demonstration board (7), second demonstration board (8) front side is provided with magic subsides (5), third demonstration board (11) front side is provided with magic subsides (5), the multiunit go up magic subsides (5) and glue down magic subsides (30) respectively, the multiunit magic subsides (30) set up respectively in digital card (31) rear side down, digital card (31) have five groups, and every group digital card (31) are provided with ten respectively.

2. The primary school mathematics demonstration device frame body according to claim 1, characterized in that: one side of each group of digital cards (31) is respectively provided with a label (32), and each group of labels (32) are sequentially arranged to be 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0.

3. The primary school mathematics demonstration device frame body according to claim 1, characterized in that: demonstration platform (1) top right side fixed connection first holds case (2), two groups of digital card (31) have been held in first holding case (2), demonstration platform (1) top center department fixed connection second holds case (3), a group of digital card (31) have been held in second holding case (3), demonstration platform (1) top left side fixed connection third holds case (12), two groups of digital card (31) have been held in third holding case (12).

4. The primary school mathematics demonstration device frame body according to claim 1, characterized in that: two first threaded rod (13), two are threaded socket respectively in lifter plate (4) bottom inner chamber first threaded rod (13) bottom fixed connection driven shaft (15) top, two respectively driven shaft (15) bottom rotates respectively and connects diaphragm (17) top, two one side that diaphragm (17) are close to each other is one side that two foot rests of fixed connection (22) were kept away from each other respectively.

5. The primary school mathematics demonstration device frame body according to claim 4, characterized in that: the outer walls of the two driven shafts (15) are respectively fixedly sleeved with a first bevel gear (14), the two first bevel gears (14) are respectively meshed with second bevel gears (16), the two second bevel gears (16) are respectively fixedly sleeved at one end of a driving shaft (23), and the other ends of the two driving shafts (23) are respectively fixedly connected with the output end of a double-shaft motor (24).

6. The primary school mathematics demonstration device frame body according to claim 5, characterized in that: the top end of the double-shaft motor (24) is fixedly connected with the center of the bottom end of the fixing plate (25), and the left side and the right side of the fixing plate (25) are respectively fixedly connected with the top end of one side, close to each other, of the two foot rests (22).

7. The primary school mathematics demonstration device frame body according to claim 4, characterized in that: two diaphragm (17) bottom one side has inlayed respectively and has rotated motor (29), two it is respectively fixed connection second threaded rod (28) top, two to rotate motor (29) output second threaded rod (28) bottom rotates respectively and connects bottom plate (26) top one side.

8. The primary school mathematics demonstration device frame body according to claim 7, characterized in that: one side of each of the two base plates (26) close to each other is fixedly connected with the bottom end of one side of each of the two foot rests (22) far away from each other, and the two base plates (26) penetrate through the pulleys (18) respectively.

9. The primary school mathematics demonstration device frame body according to claim 7, characterized in that: two second threaded rod (28) outer wall is threaded socket joint screw sleeve board (27) respectively, two one side that screw sleeve board (27) are close to each other is fixed connection mounting panel (19) one side respectively, two pulley (18) are installed respectively to both sides around mounting panel (19) bottom.

10. The primary school mathematics demonstration device frame body according to claim 9, characterized in that: two one side center department that screw sleeve board (27) were kept away from in mounting panel (19) is fixed connection stopper (20) respectively, and is two sets of stopper (20) slide respectively and cup joint at spacing groove (21) inner chamber, two spacing groove (21) are vertical respectively inlays in the one side of keeping away from each other of two foot rests (22).