CN213400158U

CN213400158U - Primary school mathematics presentation device

Info

Publication number: CN213400158U
Application number: CN202022536600.3U
Authority: CN
Inventors: 叶林森
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-08
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to a primary school's mathematics presentation device, including dwang, platen, gag lever post, backplate and U type pole, the lower surface veneer of platen has the supporting seat, and the equidistance evenly sets up threaded hole on the platen, the both ends of U type pole are rotated and are installed the connecting axle, the lower surface welding of connecting axle has the dwang, the dwang screw thread is installed in the threaded hole, and the activity cup joints the digital piece on the U type pole, the backplate welding is in the upper surface intermediate position department of platen, the gag lever post activity is pegged graft on the backplate, and the lower extreme screw thread of gag lever post is installed on the platen, the bottom welding of gag lever post has the rotation cap, and the front surface equidistance of platen is pasted and is signed the digit, digit is signed and. The utility model discloses, compact structure, it is convenient to use, when being convenient for change the number piece, can carry on spacingly to the position of number piece, satisfies personnel's user demand.

Description

Primary school mathematics presentation device

Technical Field

The utility model relates to a primary school's education field, concretely relates to primary school's mathematics presentation device.

Background

Mathematics education is the subject of studying the practice and methods of mathematical education. Also, mathematicians are also concerned with the development of tools and their research that facilitate such practices. Mathematics education is one of the subjects of intense debate in modern society.

The mathematics education is a social culture phenomenon, and the sociality determines that the mathematics education is advanced with time and is continuously innovated. A series of problems of education targets, education contents, education techniques and the like in the mathematics education are continuously changed and developed along with the progress of the society. Background of the mathematical education reform, there are at least nine considerations: knowledge economy, social relations, family pressure, international trend, examination reform, science and education, deepening of the nation, popularization of obligation education and technological progress.

In the process of primary school's mathematics education, it is especially important to the basic cognition of digit, and traditional counter is in the use, and to the spacing not in place of digital, child can not have subjective pair digit and stir to often disturb the digit that the digit formed, reach the effect that lets child's cognition, and it is difficult to change to the digit of damage, can not satisfy personnel's user demand.

SUMMERY OF THE UTILITY MODEL

The utility model provides a primary school's mathematics presentation device has solved above technical problem.

The utility model provides a scheme as follows of above-mentioned technical problem: including dwang, platen, gag lever post, backplate and U type pole, the lower surface veneer of platen has the supporting seat, and the equidistance evenly sets up threaded hole on the platen, the both ends of U type pole are rotated and are installed the connecting axle, the lower skin weld of connecting axle has the dwang, the dwang threaded mounting is in the threaded hole, and the activity cup joints has the several yards piece on the U type pole, the backplate welding is in the upper surface intermediate position department of platen, the gag lever post activity is pegged graft on the backplate.

The utility model has the advantages that: the utility model can mark ten or hundreds of counting units on the digital sign during the use process, then the digital block can slide on the corresponding three U-shaped rods to form three-digit numbers, after children need to recognize specific values, the rotating cap can be rotated to drive the limiting rod to rotate, the limiting rod can move upwards through the thread engagement between the limiting rod and the bedplate, so that the limiting rod is blocked on the lower surface of the U-shaped rod, thereby preventing the digital block from sliding randomly on the U-shaped rod, when the damaged digital block needs to be replaced, the rotating rod can be rotated, the thread groove at the upper end of the rotating rod is separated from the thread hole, the U-shaped rod can be taken out, and the digital block can be reinstalled after being replaced by a new digital block, the utility model has compact structure and convenient use, and can limit the position of the digital block when the digital block is replaced, the use requirements of personnel are met.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the outer wall of the upper end of the rotating rod is provided with a thread groove, and the thread groove is in thread engagement with the thread hole.

The beneficial effect of adopting the further scheme is that: the U-shaped rod is convenient to disassemble.

Further, the lower end screw thread of gag lever post is installed on the platen, the welding of the bottom of gag lever post has the rotation cap.

The beneficial effect of adopting the further scheme is that: the position of the limiting rod can be changed conveniently, so that the limiting rod can block the digital block from sliding.

Further, the diameter of the rotary rod is the same as that of the U-shaped rod.

The beneficial effect of adopting the further scheme is that: the digital block can be conveniently taken down from the U-shaped rod.

Furthermore, the front surface of the bedplate is pasted with digital tags at equal intervals, and the digital tags correspond to the U-shaped rods one by one.

The beneficial effect of adopting the further scheme is that: it is convenient to mark the counting units, so that the number is listed.

Furthermore, the number of the supporting seats is four, and the supporting seats are distributed on the lower surface of the bedplate in a rectangular array.

The beneficial effect of adopting the further scheme is that: the placing stability of the device is convenient to ensure.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic side view of a primary school mathematics demonstration apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a primary school mathematics demonstration apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a in fig. 1 of a primary school mathematics demonstration apparatus according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a supporting seat; 2. rotating the rod; 3. rotating the cap; 4. a platen; 5. a limiting rod; 6. a back plate; 7. a U-shaped rod; 8. a digital block; 9. a thread groove; 10. a threaded hole; 11. a connecting shaft; 12. a digital label.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-3, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides a primary school's mathematics presentation device, including dwang 2, platen 4, gag lever post 5, backplate 6 and U type pole 7, the lower surface veneer of platen 4 has supporting seat 1, supporting seat 1 totally four, supporting seat 1 is the rectangular array distribution at the lower surface of platen 4, the front surface equidistance of platen 4 is pasted and is had digit sign 12, digit sign 12 and U type pole 7 one-to-one can mark a number, ten, hundred three count units on digit sign 12, then slide number piece 8 on three U type poles 7 that correspond, make its constitution three digit figure.

Evenly set up threaded hole 10 equidistantly on platen 4, connecting axle 11 is installed in the both ends rotation of U type pole 7, the lower surface welding of connecting axle 11 has

dwang

2, 2 threaded installations of dwang are in threaded hole 10, thread groove 9 has been seted up to the upper end outer wall of dwang 2, be thread engagement between thread groove 9 and the screw hole 10, when needs carry out with the change to the number piece 8 that damages, rotatable dwang 2, make thread groove 9 of 2 upper ends of dwang break away from screw hole 10, can take out U type pole 7, the diameter of dwang 2 is the same with U type pole 7's diameter, it can with its reinstallation after changing new digital piece 8.

U type pole 7 goes up the activity and cup joints there is

number piece

8, 6 welding of backplate is in the upper surface intermediate position department of

platen

4, 5 activities of gag lever post are pegged graft on backplate 6, the lower extreme screw thread of gag lever post 5 is installed on platen 4, the bottom welding of gag lever post 5 has rotation cap 3, need let behind the specific numerical value of child's cognition, rotatable rotation cap 3, it drives gag lever post 5 and rotates to rotate cap 3, through the thread engagement effect between gag lever post 5 and the platen 4, make gag lever post 5 move up, thereby gag lever post 5 keeps off the lower surface at U type pole 7, thereby prevent that number piece 8 from sliding at will on U type pole 7. The utility model discloses, compact structure, it is convenient to use, when being convenient for change to code block 8, can carry on spacingly to code block 8's position, satisfies personnel's user demand.

The working principle is as follows: the utility model discloses in the use, can mark a lot on digit sign 12, ten, hundred three count units, then number piece 8 slides on three U type pole 7 that corresponds, make its figure of constituteing the tribit, need let behind child's cognitive specific numerical value, rotatable rotation cap 3, it drives gag lever post 5 and rotates to rotate cap 3, through the thread engagement effect between gag lever post 5 and platen 4, make gag lever post 5 shift up, thereby gag lever post 5 keeps off the lower surface at U type pole 7, thereby prevent that number piece 8 from sliding at will on U type pole 7, when needs carry out with the change to the number piece 8 of damage, rotatable dwang 2, make the thread groove 9 of 2 upper ends of dwang break away from screw hole 10, can take out U type pole 7, it can to reinstall it after the digital piece 8 of more renewing.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a primary school's mathematics presentation device, its characterized in that, includes dwang (2), platen (4), gag lever post (5), backplate (6) and U type pole (7), the lower surface veneer of platen (4) has supporting seat (1), and equidistant even set up screw hole (10) on platen (4), connecting axle (11) are installed in the rotation of the both ends of U type pole (7), the lower surface welding of connecting axle (11) has dwang (2), dwang (2) screw thread is installed in screw hole (10), and movable sleeve joint has digital block (8) on U type pole (7), backplate (6) welding is in the upper surface intermediate position department of platen (4), gag lever post (5) activity is pegged graft on backplate (6).

2. An elementary school mathematics demonstration device according to claim 1, characterized in that the outer wall of the upper end of the rotating rod (2) is provided with a thread groove (9), and the thread groove (9) is in threaded engagement with the threaded hole (10).

3. An elementary school mathematics demonstration device according to claim 1, characterized in that the lower end of said stop bar (5) is mounted on the bedplate (4) by means of screw thread, and the bottom end of said stop bar (5) is welded with a rotating cap (3).

4. An elementary school mathematics presentation device according to claim 1, characterised in that the diameter of the swivelling levers (2) and the U-shaped levers (7) is the same.

5. An elementary school mathematics demonstration device according to claim 1, characterised in that the front surface of said plate (4) is equidistantly stuck with digital tags (12), said digital tags (12) corresponding one-to-one to the U-shaped bars (7).

6. An elementary school mathematics presentation device according to claim 1, wherein said supports (1) are four in number, said supports (1) being arranged in a rectangular array on the lower surface of the table (4).