CN110200429B

CN110200429B - Mathematics teaching platform

Info

Publication number: CN110200429B
Application number: CN201910525476.XA
Authority: CN
Inventors: 窦晓霞
Original assignee: Baoji University of Arts and Sciences
Current assignee: Baoji University of Arts and Sciences
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2021-01-26
Anticipated expiration: 2039-06-18
Also published as: CN110200429A

Abstract

The utility model provides a mathematics teaching platform, includes wall body and blackboard, the blackboard is by outer first blackboard, second blackboard and third blackboard to interior in proper order, the second blackboard is fixed on the wall body, second blackboard top both sides are fixed with the track, first blackboard and rail connection, two all be equipped with the slider connecting rod between third blackboard and the second blackboard, be equipped with the motor on the wall body, be equipped with elevating system between first blackboard and the motor shaft, be equipped with branch mechanism between third blackboard and the motor shaft, be equipped with the tilter on the shifting out direction of third blackboard, the tilter is used for adjusting the angle between third blackboard and the second blackboard, be equipped with rotatable fluted disc and branch tooth pole on the motor shaft, be equipped with the sleeve between fluted disc and the branch tooth pole, relative rotation nevertheless relative slip can not take place between sleeve and the motor shaft, the teaching table not only can extend the area of the blackboard, but also can change the angle of the blackboard extended from the side edge, and eliminates the problem of light reflection.

Description

Mathematics teaching platform

Technical Field

The invention relates to the field of teaching, in particular to a mathematical teaching table.

Background

Education problems are always the focus of attention, and when science and technology are rapidly developed, the education quality has to be determined to a certain extent by the national prosperity and defences. Not all the teenagers are strong, but the Chinese is strong, and the education quality is the most important topic at present. Compared with the last century, the education reform really achieves good results, and both teachers and educated people have excellent results compared with the former.

The compulsory education system adopted in China causes the basic number of educated people before high school to be large, causes the small-scale education to be difficult to implement in the existing environment, and the large-scale education is the current state of education, causes the problem of teaching efficiency to be large all the time, and particularly, the subject of mathematics has high abstraction, strict logic and contrast, and high abstraction: an abstraction that differs to an object and degree from other disciplines by means of which mathematics is built up and developed. Strict logic: mathematics has strict logicality, and any mathematical conclusion can be accepted only through strict proof of logical reasoning; therefore, a large number of reasoning processes and graphic descriptions exist in the teaching process, the display process is extremely tedious, and a large number of reasoning space is needed; comparison property: different conclusions need to be drawn by comparison.

Present middle school teaching resource software and some hardware facilities are updating all the time, but teaching building and classroom are setting status basically, too much change can not take place, and there is a very big problem on current classroom, the teaching blackboard in classroom can't provide sufficient space and be used for the deduction of mathematical education process, because the education of large-scale class leads to the classroom to sit full student, the typeface can not be too little, still need contrast among the mathematical education process, a blackboard often only enough a subject deduction even not enough, lead to the blackboard space seriously not enough.

Disclosure of Invention

The invention mainly aims to provide a teaching table suitable for mathematics teaching deduction and analogy processes, which can not only extend the area of a blackboard, but also change the angle of the side extending out of the blackboard and eliminate the problem of light reflection.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the utility model provides a mathematics teaching platform, includes wall body and blackboard, the blackboard is by outer first blackboard, second blackboard and third blackboard to interior in proper order, the second blackboard is fixed on the wall body, second blackboard top both sides are fixed with the track, first blackboard and rail connection, two all be equipped with the slider connecting rod between third blackboard and the second blackboard, be equipped with the motor on the wall body, be equipped with the motor shaft on the motor, be equipped with elevating system between first blackboard and the motor shaft, be equipped with branch mechanism between third blackboard and the motor shaft, be equipped with the tilter on the shifting out direction of third blackboard, the tilter is used for adjusting the angle between third blackboard and the second blackboard, be equipped with rotatable fluted disc and branch tooth pole on the motor shaft, fluted disc and branch are equipped with the sleeve between the tooth pole, relative rotation nevertheless can slide relatively not take place between sleeve and the motor shaft, and the tail end of the motor shaft is provided with an electromagnet, and the electromagnet is used for controlling the sleeve to slide.

Elevating system includes track, lift ratch and fluted disc, first blackboard both sides are equipped with the tooth, the fluted disc is rotatably fixed on the motor shaft, be fixed with the lift ratch in the direction of perpendicular first blackboard at the wall body, the tooth meshing of the side of lift ratch one end and fluted disc meshing, the other end and first blackboard, be equipped with on the track with first blackboard complex fixed switch, fixed switch can be with the first blackboard of electromagnet absorption or with modes such as the fixed first blackboard of bolt.

The branch mechanism comprises a branch plate, a push rod, a branch toothed bar, a gear a and a gear b, wherein the two ends of the branch toothed bar are connected with the gear a, the gear a is provided with the coaxial gear b, the gear b is matched with the branch plate, the branch plate is provided with teeth capable of being meshed with the gear b, the branch plate is fixedly provided with the push rod, and the tail end of the push rod is hinged to a third blackboard.

The slide block connecting rod comprises a slide block, a connecting rod and a slide block rail; the blackboard comprises a first blackboard and a second blackboard, wherein the first blackboard is provided with a plurality of sliding blocks, the second blackboard is provided with a plurality of rotatable sliding blocks, the upper ends and the lower ends of the second blackboard are provided with sliding block rails, the sliding blocks are arranged in the sliding block rails, the second blackboard is provided with rotatable sliding blocks, the number of the sliding blocks on the second blackboard is consistent with that of the sliding blocks on the third blackboard, and the two adjacent sliding blocks on the second blackboard and the third.

The gear plate is characterized in that a gear plate pawl is fixed inside the gear plate, a gear plate ratchet wheel is arranged on the sleeve, and the gear plate ratchet wheel can move along the axial direction of the motor shaft. The fluted disc ratchet wheel is provided with a magnetic pole which is matched with the electromagnet for use.

A toothed bar pawl is fixed inside the branch toothed bar, a toothed bar ratchet wheel is arranged on the sleeve, and the toothed bar ratchet wheel can move along the axial direction of the motor shaft.

Compared with the prior art, the invention has the advantages that:

the novel blackboard can be extended from the left side, the right side and the upper side of the blackboard so as to meet the requirements of deduction and demonstration and analogy demonstration in the process of mathematical education.

The angle alpha formed by the third blackboards on the left side and the right side and the wall body can be adjusted, and the problem of light reflection is eliminated.

The first blackboard that the blackboard upside extends out is located outermost, does not use when moving up again, uses earlier, and the second blackboard is used again after first blackboard moves up, and the teaching of being convenient for is write and is used.

Drawings

FIG. 1 is a front view of a mathematical teaching station;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 2;

FIG. 4 is a cross-sectional view of the side teaching board of FIG. 2 in the direction B-B, expanded;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 4;

FIG. 7 is a perspective sectional view taken along line E-E of FIG. 6;

fig. 8 is an enlarged view of a portion G of fig. 2.

Some of the reference numbers correspond to the names: a wall body 1; a first blackboard 2; a rail 21; a lifting rack 22; a second blackboard 3; a third blackboard 4; the tilting body 41; a slider link 42; a slider 421; a connecting rod 422; slider rails 43; a direction dividing mechanism 5; a branching plate 51; a push rod 52; the guide groove 53; a motor 6; a motor shaft 61; a toothed disc 62; a toothed disc pawl 621; a toothed disc ratchet 622; the branch rack bar 63; a rack bar pawl 631; a rack ratchet 632; a sleeve 64; an electromagnet 65; gear a 71; gear b 72; the third blackboard forms an angle alpha with the wall.

Detailed Description

The following description is presented to disclose the invention in order to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious modifications will occur to those skilled in the art.

The embodiment of the invention relates to a mathematical teaching table, which comprises a wall body 1 and blackboards, wherein the blackboards are a first blackboard 2, a second blackboard 3 and a third blackboard 4 from outside to inside in sequence, the second blackboard 3 is fixed on the wall body 1, rails 21 are fixed on two sides above the second blackboard 3, the first blackboard 2 is connected with the rails 21, a slider connecting rod 42 is arranged between the two third blackboards 4 and the second blackboard, a motor 6 is arranged on the wall body 1, a motor shaft 61 is arranged on the motor 6, a lifting mechanism is arranged between the first blackboard 2 and the motor shaft 61, a branch mechanism 5 is arranged between the third blackboard 4 and the motor shaft 61, an inclined body 41 is arranged in the moving-out direction of the third blackboard 4, the inclined body 41 is used for adjusting the angle between the third blackboard 4 and the second blackboard 3, namely, the angle alpha formed by the third blackboard and the wall body as shown in figure 4 is adjusted, the reflection eliminating effect of alpha is best when the value of alpha is 5-15 degrees; the motor shaft 61 is provided with a rotatable toothed disc 62 and a direction-dividing toothed rod 63, a sleeve 64 is arranged between the toothed disc 62 and the direction-dividing toothed rod 63, and the sleeve 64 and the motor shaft 61 cannot rotate relatively but can slide relatively.

Elevating system includes track 21, lift ratch 22 and

fluted disc

62, 2 both sides of first blackboard are equipped with the tooth, fluted disc 62 is rotatably fixed on motor shaft 61, be fixed with lift ratch 22 in the direction of the first blackboard 2 of vertical of wall body 1 edge, lift ratch 22 one end and the tooth meshing of fluted disc 62 meshing, the other end and one side of first blackboard 2, be equipped with on track 21 with first blackboard 2 complex fixed switch, fixed switch can be with the first blackboard of electromagnet absorption or with the fixed first blackboard mode of bolt.

The branch mechanism 5 comprises a branch plate 51, a push rod 52, a branch tooth rod 63, a gear a71 and a gear b72, the two ends of the branch tooth rod 63 are connected with gears a71, the gear a71 is provided with a coaxial gear b72, the gear b72 is matched with the branch plate 51, the branch plate 51 is provided with teeth capable of being meshed with the gear b, the branch plate 51 is fixedly provided with the push rod 52, and the tail end of the push rod 52 is hinged to a third blackboard 4.

The slider link 42 includes a slider 421, a link 422, and a slider rail 43; the upper and lower both ends of third blackboard 4 are equipped with slider rail 43, be equipped with slider 421 in the slider rail 43, be equipped with rotatable slider 421 on the second blackboard 3, the quantity of slider 421 on the second blackboard 3 is unanimous with the quantity of slider 421 on the third blackboard 4, be equipped with rotatable connecting rod 422 on two adjacent sliders 421 on second blackboard 3 and the third blackboard 4.

A fluted disc pawl 621 is fixed inside the fluted disc 62, and a fluted disc ratchet wheel 622 is arranged on the sleeve 64, wherein the fluted disc ratchet wheel 622 can axially move along the motor shaft 61.

A toothed bar pawl 631 is fixed inside the branch toothed bar 63, and a toothed bar ratchet 632 is arranged on the sleeve 64, wherein the toothed bar ratchet 632 can move axially along the motor shaft 61.

The specific working process is shown in fig. 1 to 8:

when the first blackboard 2 has insufficient area, as shown in fig. 6a, the electromagnet 65 attracts the fluted disc ratchet 622, drives the fluted disc ratchet 622 and the toothed bar ratchet 632 on the whole sleeve 64 to move rightwards, so that the fluted disc pawl 621 is engaged with the fluted disc ratchet 622, the toothed bar pawl 631 is not engaged with the toothed bar ratchet 632, that is, the gear plate 62 rotates together with the motor shaft 61, the branch rod 63 does not rotate together with the motor shaft 61, the motor 6 rotates to drive the gear plate 62 to rotate, the gear plate 62 is engaged with the lifting rod 22, the rod 22 is engaged with the two side teeth of the first blackboard 2, so that the first blackboard 2 moves upward along the rail 21, and after the first blackboard 2 moves to the uppermost end, the motor 6 stops rotating, the track 21 is provided with a fixed switch matched with the first blackboard 2 to fix the first blackboard 2, the fixed switch can be realized by using a mode that an electromagnet adsorbs the first blackboard or a bolt fixes the first blackboard and the like.

When the area of the first blackboard 2 is not enough to be used, as shown in fig. 6b, the electromagnet 65 repels the fluted disc ratchet 622, the fluted disc ratchet 622 and the toothed rod ratchet 632 on the whole sleeve 64 are driven to move leftwards, the fluted disc pawl 621 and the fluted disc ratchet 622 are not meshed, the toothed rod pawl 631 and the toothed rod ratchet 632 are meshed, namely, the branch rod 63 and the motor shaft 61 rotate together, the fluted disc 62 does not rotate together with the motor shaft 61, the motor 6 rotates to drive the branch rod 63 to rotate, the branch rod is meshed with the gear a71, the gear a71 and the gear b72 rotate coaxially, the gear b72 is meshed with the branch plate 51, the rotation directions of the gears a at the two ends of the branch rod are opposite, so that the two branch plates 51 rotate in opposite directions, the slider connecting rod 42 between the third blackboard and the second blackboard maintains the position of the third blackboard 4, the slider connecting rod 42 is arranged on the slider rail 43 of the third blackboard 4, the push rod 52 pushes the two third blackboards 4 to extend out towards the two sides of the first blackboard 2 (also the second blackboard 3), the inclined body 41 acts on the third blackboard 4, so that the third blackboard can incline to a certain degree when extending out to generate an inclination angle alpha (as shown in fig. 4), the value of the alpha is the best in reflection eliminating effect of 5-15 degrees, the alpha can be adjusted by adjusting the distance between the inclined body 41 and the second blackboard 3, and the inclination angle of the inclined body can be directly adjusted.

When all the blackboards are required to be adjusted for use, the blackboards are adjusted together according to the method.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mathematics teaching platform, includes wall body (1) and blackboard, its characterized in that: the blackboard is by outer being first blackboard (2), second blackboard (3) and third blackboard (4) in proper order to interior, second blackboard (3) are fixed on wall body (1), second blackboard (3) top both sides are fixed with track (21), first blackboard (2) and track (21) are connected, two all be equipped with slider connecting rod (42) between third blackboard (4) and the second blackboard, be equipped with motor (6) on wall body (1), be equipped with motor shaft (61) on motor (6), be equipped with elevating system between first blackboard (2) and motor shaft (61), be equipped with branch mechanism (5) between third blackboard (4) and motor shaft (61), be equipped with tilter (41) in the removal direction of third blackboard (4), tilter (41) are used for adjusting the angle between third blackboard (4) and second blackboard (3), a rotatable fluted disc (62) and a direction-dividing toothed rod (63) are arranged on the motor shaft (61), a sleeve (64) is arranged between the fluted disc (62) and the direction-dividing toothed rod (63), the sleeve (64) and the motor shaft (61) cannot rotate relatively but can slide relatively, and an electromagnet (65) is arranged at the tail end of the motor shaft (61); a fluted disc pawl (621) is fixed inside the fluted disc (62), a fluted disc ratchet wheel (622) is arranged on the sleeve (64), and the fluted disc ratchet wheel (622) can axially move along the motor shaft (61); a toothed bar pawl (631) is fixed inside the branch toothed bar (63), a toothed bar ratchet wheel (632) is arranged on the sleeve (64), and the toothed bar ratchet wheel (632) can move axially along the motor shaft (61); divide mechanism (5) including dividing board (51), push rod (52), divide to ratch (63), gear a (71) and gear b (72), divide to ratch (63) both ends and all be connected with gear a (71), be equipped with coaxial gear b (72) on gear a (71), gear b (72) with divide to board (51) cooperation, divide to be fixed with push rod (52) on board (51), the end and the third blackboard (4) of push rod (52) are articulated.

2. A mathematical teaching station as claimed in claim 1, wherein: elevating system includes track (21), lift ratch (22) and fluted disc (62), first blackboard (2) both sides are equipped with the tooth, fluted disc (62) are rotatably fixed on motor shaft (61), be fixed with lift ratch (22) in the direction of perpendicular first blackboard (2) in wall body (1), lift ratch (22) one end meshes with the tooth of fluted disc (62), the other end and the tooth meshing of one side of first blackboard (2), be equipped with on track (21) with first blackboard (2) complex fixed switch.

3. A mathematical teaching station as claimed in claim 1, wherein: the sliding block connecting rod (42) comprises a sliding block (421), a connecting rod (422) and a sliding block rail (43); the upper and lower both ends of third blackboard (4) are equipped with slider rail (43), be equipped with slider (421) in slider rail (43), be equipped with rotatable slider (421) on second blackboard (3), the quantity of slider (421) is unanimous with the quantity of third blackboard (4) upper slide block (421), be equipped with on second blackboard (3) and third blackboard (4) on two adjacent slider (421) and rotate connecting rod (422).