CN112455127A

CN112455127A - English teaching board capable of optically displaying four-line grids

Info

Publication number: CN112455127A
Application number: CN202011356789.6A
Authority: CN
Inventors: 张晶
Original assignee: Xianning Vocational Technical College
Current assignee: Xianning Vocational Technical College
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-03-09

Abstract

The invention provides an English teaching board capable of optically displaying four lines of grids, and belongs to the technical field of teaching tools. The lifting device comprises two belt wheels and a toothed belt drawn between the two belt wheels, and a mounting block is fixedly arranged on a straight section of the toothed belt close to one side of the surface of the plate body; two coaxial band pulleys on two elevating gear link to each other through a synchronizing shaft, and the mounting panel that is located plate body back one side is located to fixedly connected with one between two installation pieces, is provided with a light source subassembly on the mounting panel, can show the visual four lines of equidistant distribution of naked eye on the plate body surface after the light source subassembly gives out light. The invention has the advantages of convenient use, capability of improving teaching efficiency and the like.

Description

English teaching board capable of optically displaying four-line grids

Technical Field

The invention belongs to the technical field of teaching tools, and relates to an English teaching board capable of optically displaying four lines.

Background

The traditional english teaching board of line formula of drawing still is the mainstream, draws three check of four-wire earlier so that english writing is more standard promptly, wastes time and energy, and comparatively accurate four-wire check are drawn to very difficult drawing moreover, influence teaching efficiency, extravagant teacher's energy. Also have the four-line check drawing instrument of different styles and drawing mode among the prior art, adopt the drawing instrument also very influence efficiency, and draw line and english writing line cross the back, the modification of writing the line to english has led to the fact the difficulty, that is to say, the mode that adopts the drawing line not only needs the teacher to accomplish the drawing line, work such as erasing the drawing line, and it is very troublesome when english writing content needs to be modified, wipe the in-process of english writing and can wipe off four-line check drawing line certainly, cause four-line check need to draw again or repair, form irregular four-line check, be difficult to reach supplementary english writing standard and regular effect, the uneven four-line check after wiping still can influence the neatness of english writing, seriously influence the clean face of a whole page.

Disclosure of Invention

The invention aims to provide an English teaching board capable of optically displaying four lines, aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme: the English teaching board capable of optically displaying the four-line lattices is characterized by comprising a rectangular board body and two lifting devices which are respectively positioned at two lateral side edges of the board body, wherein each lifting device comprises two belt wheels and a toothed belt which is dragged between the two belt wheels, and a mounting block is fixedly arranged on one straight section of the toothed belt which is close to one side of the surface of the board body; two coaxial band pulleys on two elevating gear link to each other through a synchronizing shaft, and fixedly connected with one is located the mounting panel of plate body back one side between two installation pieces, be provided with a light source subassembly on the mounting panel, can show the visual four lines that equidistant distribute of naked eye on the plate body surface after the light source subassembly is luminous.

Furthermore, one of the synchronous shafts is connected with an output shaft of a servo motor.

Furthermore, the shell of the servo motor is fixed on the back of the plate body, and the synchronizing shaft is rotatably connected to the back of the plate body.

Furthermore, the light source assembly comprises four mounting rods, a plurality of LED lamp tubes which are positioned on the same straight line are arranged in each mounting rod, a containing cavity is formed in each mounting rod, a light guide and light gathering piece is arranged in each containing cavity, a notch is formed in the position, right facing the plate body, of each containing cavity, and a light transmitting glass piece is arranged in each notch.

Furthermore, four LED fluorescent tubes of same column correspond an infrared inductive switch that is located plate body lower extreme edge.

Furthermore, the mounting plate is hinged with two connecting rods, the mounting rod at the lowest end is fixed on the mounting plate, the two connecting rods are respectively located at two ends of the mounting rod, a permanent magnet is fixedly arranged at the upper end of each connecting rod, a plurality of positioning iron blocks corresponding to the permanent magnets are arranged on the mounting plate, and the positioning iron blocks corresponding to the same permanent magnet are located on a track line of the permanent magnet swinging around a hinge joint of the connecting rod and the mounting rod at the lowest end.

Furthermore, both ends of the mounting rod at the uppermost end are respectively and fixedly provided with a control rod, and the mounting block is provided with an avoiding groove for avoiding the control rod.

Further, one of them dodges the bottom in groove and is provided with an electromagnetic control structure, electromagnetic control structure includes casing, sliding connection ejector pad in the casing and fixes the push rod on the ejector pad, have a lantern ring on the push rod, insert and establish the installation pole sliding connection who dodges the inslot on the lantern ring, the bottom of casing is provided with an electromagnetism piece, the ejector pad is made for the iron material, be connected with a reset spring who is in tensile state between electromagnetism piece and the ejector pad.

Furthermore, the back of the plate body is provided with a plurality of transverse strip-shaped light reflecting strips and light transmitting strips which are distributed at intervals.

The plate body is a semitransparent hard plate, such as PE material, etc., the color can be light gray, and the writing pen can be chalk, marking pen, etc. In addition, the parts which are not specified in the scheme, such as an infrared induction switch, a wiring of an LED lamp tube and the like, are all existing means.

The electromagnetism piece is the electricity and gives birth to the magnetism structure, it can produce different adsorption affinity to the ejector pad according to the circular telegram electric current size, thereby overcome reset spring and order about the vertical flexible of push rod, and then change the height of control lever, realize the translation of each installation pole, each installation pole is when taking place the translation, interval between the adjacent installation pole also changes, but each installation pole still is in equidistant state, that is to say that the parallelogram linkage structure of constituteing through each installation pole can realize the regulation of four-wire grid height, this kind of regulation can be thought to control one of them control lever and go on, also can change and go on in order to order about the circular telegram electric current of electromagnetism piece through remote controller or the regulating switch that sets up on the plate body, realize the regulation of four-wire grid height so that the different typeface size is written in this four-wire grid.

The light guide and light gathering piece in the control rod, namely the light reflecting plate with a certain shape, can enable light emitted by the LED lamp tube to tend to the position of the light-transmitting glass piece, and increase the light intensity.

As preferred, plate body back equipartition reflection of light strip and printing opacity strip, reflection of light strip make this strip regional light do not have the printing opacity ability through the mode at plate body back pad pasting promptly, and the printing opacity strip is the strip region of this photomask not attached promptly, and the benefit of this kind of way lies in: the four lines displayed on the plate body are clearer, and the outline is clean and straight.

The infrared induction switch controls four LED lamp tubes which are arranged above the infrared induction switch and are positioned in the same column, when a user approaches the area, the body shields the infrared induction switch, the four LED lamp tubes in the area are opened, the four LED lamp tubes are not actively closed after the opening, and the partial LED lamp tubes are closed only when the switches controlling all the LED lamp tubes are closed; the method can improve the intelligence degree of the board body, so that the unused area of the board body does not display four-line grids.

As a semi-automatic plate, a servo motor is not arranged, the whole mounting plate is moved longitudinally in a mode of manually pulling a holding block on a toothed belt so as to adjust the area needing to display the four-line grids, an electromagnetic control structure is not required to be arranged, and a control rod is manually pulled so as to realize the adjustment of the height of the four-line grids; the edges of the two sides of the plate body are respectively provided with a dodging opening, the position on the toothed belt corresponding to the mounting plate is provided with a holding block, and the mounting plate can be longitudinally translated by pushing the holding block.

As a full-automatic version, the servo motor and the electromagnetic control structure can be remotely controlled, the color and the brightness of the LED lamp tube can be controlled, and the LED lamp tube is arranged in a control mode and logic thereof, and is not repeated based on the conventional means in the industry.

Through this scheme, the four-wire check is through "light show" realization, and the height-adjustable of four-wire check, and the display area can cloth and plate body universe, need not consider the influence of four-wire check when wiping the english word of writing, and in addition, the mode that the light shows can make the english write regional light intensity slightly be greater than other regions to make the learner gather the god, do benefit to the teaching quality.

The scheme can be a handheld learning board, a large-size teaching board capable of replacing a traditional blackboard, and a medium-size portable teaching board; the power supply can be a storage battery or rectified domestic power.

Drawings

Fig. 1 is a schematic plan view of the teaching board.

Fig. 2 is a schematic structural view of a lifting mechanism that controls the mounting plate.

Fig. 3 is a schematic view of the structure of the mounting bar in a maximum pitch state.

Fig. 4 is a schematic view of the structure of fig. 3 with the distance between the mounting rods reduced.

Fig. 5 is a sectional view of the mounting bar.

Fig. 6 is a schematic diagram of an electromagnetic control structure.

In the figure, 1, a plate body; 21. a pulley; 22. a toothed belt; 23. mounting blocks; 24. a synchronizing shaft; 25. a servo motor; 3. mounting a plate; 31. mounting a rod; 32. an LED lamp tube; 33. an accommodating cavity; 34. a light guide and light gathering sheet; 35. a light-transmitting glass sheet; 36. an infrared inductive switch; 41. a connecting rod; 42. permanent magnet blocks; 43. positioning an iron block; 44. a control lever; 51. a housing; 52. a push block; 53. a push rod; 54. a collar; 55. an electromagnetic member; 56. a return spring; 57. avoiding the groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the plate comprises a rectangular plate body 1 and two lifting devices respectively located at two lateral edges of the plate body 1, wherein each lifting device comprises two belt wheels 21 and a toothed belt 22 drawn between the two belt wheels 21, and a mounting block 23 is fixedly arranged on a straight section of the toothed belt 22 at one side close to the surface of the plate body 1; two coaxial band pulleys 21 on two elevating gear link to each other through a synchronizing shaft 24 between, and fixedly connected with one is located the mounting panel 3 of plate body 1 back one side between two installation pieces 23, is provided with a light source subassembly on the mounting panel 3, can show four equidistant distribution's of naked eye lines on plate body 1 surface after the light source subassembly is luminous.

One of the synchronizing shafts 24 is connected to an output shaft of a servo motor 25.

The housing 51 of the servo motor 25 is fixed to the rear surface of the plate body 1, and the synchronizing shaft 24 is rotatably coupled to the rear surface of the plate body 1.

As shown in fig. 2, fig. 3, fig. 4 and fig. 5, the light source assembly includes four mounting rods 31, a plurality of LED tubes 32 are disposed in the same straight line in each mounting rod 31, a containing cavity 33 is disposed in each mounting rod 31, a light guiding and condensing sheet 34 is disposed in each containing cavity 33, a gap is disposed at a position of each containing cavity 33 opposite to the plate body 1, and a light-transmitting glass sheet 35 is disposed in each gap.

The four LED lamps 32 in the same column correspond to an infrared inductive switch 36 located at the lower edge of the board body 1.

Two connecting rods 41 are hinged to the mounting plate 3, the mounting rod 31 at the lowest end is fixed to the mounting plate 3, the two connecting rods 41 are respectively located at two ends of the mounting rod 31, a permanent magnet 42 is fixedly arranged at the upper end of each connecting rod 41, a plurality of positioning iron blocks 43 corresponding to the permanent magnets 42 are arranged on the mounting plate 3, and the positioning iron blocks 43 corresponding to the same permanent magnet 42 are located on a track line of the permanent magnet 42 swinging around a hinge point of the connecting rod 41 and the mounting rod 31 at the lowest end.

The two ends of the mounting rod 31 at the uppermost end are respectively and fixedly provided with a control rod 44, and the mounting block 23 is provided with an avoiding groove 57 for avoiding the control rod 44.

As shown in fig. 2 and 6, an electromagnetic control structure is disposed at the bottom of one of the avoiding grooves 57, the electromagnetic control structure includes a housing 51, a pushing block 52 slidably connected in the housing 51, and a pushing rod 53 fixed on the pushing block 52, the pushing rod 53 has a collar 54, the mounting rod 31 inserted in the avoiding groove 57 is slidably connected on the collar 54, an electromagnetic member 55 is disposed at the bottom of the housing 51, the pushing block 52 is made of iron material, and a return spring 56 in a stretching state is connected between the electromagnetic member 55 and the pushing block 52.

The back of the plate body 1 is provided with a plurality of transverse strip-shaped reflecting strips and light transmitting strips which are distributed at intervals.

The plate body 1 is a semitransparent hard plate, such as PE material, the color can be light gray, and the writing pen can be chalk, marking pen, etc. In addition, the details such as the infrared inductive switch 36 and the wiring of the LED lamp 32 are not described in detail in the present embodiment.

The electromagnetic piece 55 is an electromagnetic structure, which can generate different adsorption force to the push block 52 according to the magnitude of the electrified current, thereby overcoming the defect that the reset spring 56 drives the push rod 53 to longitudinally extend and retract, further changing the height of the control rod 44, and realizing the translation of each mounting rod 31, when each mounting rod 31 translates, the distance between the adjacent mounting rods 31 also changes, but each mounting rod 31 is still in an equidistant state, that is, the parallelogram linkage structure formed by the mounting rods 31 can realize the height adjustment of four lines, the adjustment can be realized by considering to control one control rod 44, or can be realized by driving the electrified current of the electromagnetic piece 55 to change through a remote controller or an adjusting switch arranged on the plate body 1, and the height adjustment of four lines can be realized so as to facilitate the writing of English and English in the four lines with different font sizes.

The light-guiding light-gathering sheet 34, i.e., a reflective plate with a certain shape, in the control rod 44 can make the light emitted from the LED tube 32 tend to the position of the transparent glass sheet 35, and increase the light intensity.

As preferred, the plate body 1 back equipartition reflection of light strip and printing opacity strip, reflection of light strip make this strip regional light do not have the light transmission ability through the mode at 1 back pad pasting of plate body promptly, and the printing opacity strip is the strip region of this photomask not attached promptly, and the benefit of this kind of way lies in: the four lines displayed on the plate body 1 are clearer, and the outline is clean and straight.

The infrared induction switch 36 controls the four LED lamp tubes 32 above the infrared induction switch 36 and in the same column, when a user approaches the area, and the body shields the infrared induction switch 36, the four LED lamp tubes 32 in the area are opened, and are not actively closed after being opened, and only when the switches controlling all the LED lamp tubes 32 are closed, the partial LED lamp tubes 32 are closed; by the method, the intelligence degree can be improved, and the unused area of the plate body 1 does not display four-line grids.

As a semi-automatic version, the servo motor 25 is not provided, the whole mounting plate 3 is moved longitudinally in a manner of manually pulling the holding block on the toothed belt 22 to adjust the area required to display the four-line grid, and the electromagnetic control structure is not required to be provided, so that the control rod 44 is manually pulled to realize the adjustment of the height of the four-line grid; the edges of the two sides of the plate body 1 are respectively provided with a dodging opening, the position on the toothed belt 22 corresponding to the mounting plate 3 is provided with a holding block, and the mounting plate 3 can be longitudinally translated by pushing the holding block.

As a full-automatic version, the servo motor 25 and the electromagnetic control structure can be remotely controlled, and the color and brightness of the LED lamp 32 can also be controlled, and are set in the control mode and logic thereof, which are based on the conventional means in the industry and are not described herein again.

Through this scheme, the four-wire check is through "light show" realization, and the height-adjustable of four-wire check, and the display area can cloth and plate body 1 universe, need not consider the influence of four-wire check when wiping the english word of writing, and in addition, the mode of light show can make the english write regional light intensity slightly be greater than other regions to make the learner gather the god, do benefit to the teaching quality.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The English teaching board capable of showing four-line lattices optically is characterized by comprising a rectangular board body (1) and two lifting devices which are respectively positioned at the two transverse side edges of the board body (1), wherein each lifting device comprises two belt wheels (21) and a toothed belt (22) which is pulled between the two belt wheels (21), and a mounting block (23) is fixedly arranged on one straight section of the toothed belt (22) close to one side of the surface of the board body (1); two coaxial band pulleys (21) on two elevating gear link to each other through synchronizing shaft (24) between, and fixedly connected with one is located mounting panel (3) of plate body (1) back one side between two installation pieces (23), be provided with a light source subassembly on mounting panel (3), can show the visual four lines that equidistant distribute of naked eye on plate body (1) surface after the light source subassembly gives out light.

2. An english teaching board capable of optically displaying four lines, according to claim 1, wherein one of the synchronizing shafts (24) is connected to an output shaft of a servo motor (25).

3. English teaching board capable of optically displaying four lines, according to claim 1, wherein the housing (51) of the servo motor (25) is fixed on the back of the board body (1), and the synchronizing shaft (24) is rotatably connected on the back of the board body (1).

4. The English teaching board capable of displaying four-line grids optically according to claim 1, 2 or 3, wherein the light source assembly comprises four mounting rods (31), each mounting rod (31) is internally provided with a plurality of LED lamp tubes (32) which are arranged on the same straight line, the mounting rods (31) are internally provided with a containing cavity (33), the containing cavity (33) is internally provided with a light guide and light focusing sheet (34), the position of the containing cavity (33) opposite to the board body (1) is provided with a gap, and a light transmitting glass sheet (35) is arranged in the gap.

5. The English teaching board capable of displaying four lines of grids optically according to claim 4, wherein four LED lamp tubes (32) in the same column correspond to one infrared inductive switch (36) located at the edge of the lower end of the board body (1).

6. The English teaching board capable of showing four lines optically according to claim 5, wherein the mounting plate (3) is hinged with two connecting rods (41), the mounting rod (31) at the lowest end is fixed on the mounting plate (3), the two connecting rods (41) are respectively located at two ends of the mounting rod (31), a permanent magnet (42) is fixedly arranged at the upper end of the connecting rod (41), the mounting plate (3) is provided with a plurality of positioning iron blocks (43) corresponding to the permanent magnet (42), and each positioning iron block (43) corresponding to the same permanent magnet (42) is located on a track line of the permanent magnet (42) swinging around a hinge point of the connecting rod (41) and the mounting rod (31) at the lowest end.

7. The English teaching board capable of displaying four lines of grids optically according to claim 6, wherein two ends of the mounting rod (31) at the top are respectively and fixedly provided with a control rod (44), and the mounting block (23) is provided with an avoiding groove (57) for avoiding the control rod (44).

8. The English teaching board capable of optically displaying four lines of grids according to claim 7, wherein an electromagnetic control structure is arranged at the bottom of one of the avoiding grooves (57), the electromagnetic control structure comprises a housing (51), a push block (52) slidably connected in the housing (51) and a push rod (53) fixed on the push block (52), a sleeve ring (54) is arranged on the push rod (53), the mounting rod (31) inserted in the avoiding groove (57) is slidably connected on the sleeve ring (54), an electromagnetic part (55) is arranged at the bottom of the housing (51), the push block (52) is made of iron material, and a return spring (56) in a stretching state is connected between the electromagnetic part (55) and the push block (52).

9. The english teaching board capable of displaying four lines of squares according to claim 1, 2 or 3, wherein the back of the board body (1) has a plurality of transverse light reflecting strips and light transmitting strips, and the light reflecting strips and the light transmitting strips are distributed at intervals.