CN210181815U

CN210181815U - Teaching aid for English teaching

Info

Publication number: CN210181815U
Application number: CN201920777400.1U
Authority: CN
Inventors: Qiong Chuai; 揣琼
Original assignee: Sichuan Institute Of Industrial Science And Technology
Current assignee: Sichuan Institute Of Industrial Science And Technology
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-03-24
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a teaching aid for English teaching, a support comprises a bottom plate, a side plate I, a top plate and a side plate II which are sequentially connected end to end; a plurality of fixing rods are arranged between the bottom plate and the top plate, the fixing rods are uniformly distributed along the axial direction of the bottom plate and the top plate, and the two axial ends of each fixing rod are detachably connected with the corresponding bottom plate and the corresponding top plate respectively; the fixed rod is provided with a sliding groove which radially penetrates through the fixed rod, and the sliding groove extends along the axial direction of the fixed rod; n sliding blocks are arranged on each fixed rod, N is a positive integer larger than or equal to 26, the sliding blocks are matched with the sliding grooves in a directional sliding mode, and the N sliding block fixed rods are axially distributed; the outer surface of each slider is adapted to display a letter. The utility model provides a word memory or learning tools, simple structure, convenient operation only need along the spout remove the slider can, through the mode of similar picture arragement, select the letter to spell and accomplish a word, it is manual and automatic simultaneously, do benefit to the interest in learning that improves the student, improve learning efficiency.

Description

Teaching aid for English teaching

Technical Field

The utility model relates to a teaching apparatus technical field, concretely relates to teaching aid is used in english teaching.

Background

English is one of the most lexical languages in the world and is the first or second language that is widely accepted by most countries in the world. At present, the vocabulary of English words of students plays a vital role in learning English and learning English scores, so that the students especially have important memory on English words in English learning, and the learning of words, especially memory, is still a bottleneck which puzzles the improvement of English level of students. The existing English teaching method is to repeatedly write letters and words on a blackboard, and the method is boring, so that many students are easy to be distracted, cannot interact with teachers, and can reduce the learning interest of the students, thereby affecting the teaching quality; meanwhile, the existing word teaching aids are not very convenient to use, and teachers are complex to operate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: present english teaching method is writing letter and word repeatedly on the blackboard, and the student of being convenient for remembers, and is more boring and boring, influences student interest in learning, the utility model provides a teaching aid is used in english teaching of solving above-mentioned problem.

The utility model discloses a following technical scheme realizes:

a teaching aid for English teaching comprises a support in a rectangular structure, wherein the support comprises a bottom plate, a side plate I, a top plate and a side plate II which are sequentially connected end to end; a plurality of fixing rods are arranged between the bottom plate and the top plate, the fixing rods are uniformly distributed along the axial direction of the bottom plate and the top plate, and the two axial ends of each fixing rod are detachably connected with the corresponding bottom plate and the corresponding top plate respectively; the fixed rod is provided with a sliding groove which radially penetrates through the fixed rod, and the sliding groove extends along the axial direction of the fixed rod; n sliding blocks are arranged on each fixed rod, N is a positive integer larger than or equal to 26, the sliding blocks are matched with the sliding grooves in a directional sliding mode, and the N sliding block fixed rods are axially distributed; the outer surface of each slider is adapted to display a letter.

The utility model provides an english teaching aid does benefit to the student and learns and remember the english word. The main structure of the teaching aid is composed of a frame structure and a word spelling mechanism; the frame structure is a support, and is a rectangular frame structure formed by sequentially connecting a bottom plate, a side plate I, a top plate and a side plate II end to end, and the support is used for fixing a word spelling mechanism; the word spelling mechanism is composed of a plurality of fixed rods and sliding blocks, the fixed rods are arranged in the frame structure, the number of the fixed rods is set according to the word requirement which needs to be mastered by a teaching object, namely, the fixed rods with corresponding number are arranged according to the number of letters of common words, and each fixed rod is detachably arranged on the support, so that unified manufacturing and dismounting operation are facilitated; at least 26 sliding blocks are arranged on each fixing rod, 26 sliding blocks are used for marking 26 English letters respectively, the fixing rods are uniformly distributed along the axial direction of the bottom plate in a straight line, the sliding blocks on the fixing rods are moved along the sliding grooves, and the position of the sliding block on each fixing rod is adjusted, so that a line of words are formed at the same height on the continuously adjacent fixing rods. The utility model provides a word memory or learning tools, simple structure, convenient operation only need along the spout remove the slider can, through the mode of similar picture arragement, select the letter to spell and accomplish a word, it is manual and automatic simultaneously, do benefit to the interest in learning that improves the student, improve learning efficiency.

Further, the axial length of the sliding groove allows 2N-1 sliding blocks to be accommodated; two indicating lines are arranged on the axial middle part of the fixed rod and positioned on the side wall where the sliding groove is located, the indicating lines are perpendicular to the axial direction of the fixed rod, and the distance between the two indicating lines allows one sliding block to be accommodated; adjacent fixed rods are contacted with each other, and the indicating lines on all the fixed rods are connected end to form two parallel straight line segments.

The length of the sliding groove is set to be long enough to allow 2N-1 sliding blocks to be accommodated at the same time; two parallel indicating lines are arranged in the axial middle of the fixed rod and are perpendicular to the axial direction of the fixed rod, so that all the sliding blocks on each fixed rod can be moved to positions above/below the area of the indicating lines before spelling words to be used as preparation for returning to zero before spelling; when a word is spelled, all sliders corresponding to the selected letters and below/above the selected letters are moved downwards/upwards, so that the selected letters appear in the indication line area, and the word can be quickly spelled and conveniently confirmed after spelling.

Furthermore, the plate surfaces of two axial ends of the bottom plate are respectively provided with a telescopic rod, the fixed section of each telescopic rod is arranged on the plate surface of the bottom plate, the axial direction of the telescopic rod section of each telescopic rod is parallel to the axial direction of the corresponding fixed rod, and the free end of the telescopic section of each telescopic rod is sleeved with a connecting sleeve; the axial two ends of the reset rod are respectively connected with the side walls of the two connecting sleeves; the telescopic motion of telescopic link drives the release link and reciprocates along the dead lever axial, and the pole section that is located the release link between two connecting sleeve is used for promoting the slider and moves down.

The telescopic rods are arranged at the two ends in the bracket to drive the reset rod to move up and down, so that the zero resetting operation of the sliding block is conveniently and quickly realized; the axial direction of the reset rod is vertical to the axial direction of the fixed rods, the reset rod is positioned in front of the plane where all the fixed rods are positioned and is positioned above the bracket, namely the top end of the sliding chute, and the reset rod is used for contacting with the uppermost sliding blocks of all the fixed rods; when the telescopic rod is not used, the telescopic rod is in an extension state, the reset rod is positioned on the lower plate surface of the top plate, and a groove for accommodating the reset rod can be formed in the lower plate surface of the top plate, so that the volume of the internal space of the bracket occupied by the reset rod is reduced; when the operation of need zeroing, the shrink of control telescopic link, the flexible section of telescopic link passes through the flexible action that the connecting sleeve drove the release link through the telescopic link, drives the release link and moves down along the dead lever axial, and the slider contact of release link and dead lever top promotes all sliders and moves down along the spout, and the slider of top removes to the instruction line region on all dead levers can, convenient quick zeroing operation.

Furthermore, the telescopic rod adopts a hydraulic telescopic rod; and the support is provided with a button for controlling the telescopic action of the hydraulic telescopic rod.

The utility model discloses a now some electric hydraulic telescopic links commonly used can, through the automatic flexible action of the button control hydraulic telescopic link of setting on the support, easy operation is convenient.

Furthermore, mounting holes are formed in the end faces of two axial ends of the fixing rod, and columnar springs are arranged in the mounting holes; one axial end of the columnar spring is fixed at the bottom of the mounting hole, and the other axial end of the columnar spring is connected with the bottom end of the limiting column; when the columnar spring is in a natural extension state, the bottom end of the limiting column is embedded into the mounting hole in a clearance fit manner; and the upper plate surface of the bottom plate and the lower plate surface of the top plate are respectively provided with a limiting hole which is used for being matched with the top end of the limiting column in an embedded mode.

In the installation dead lever in-process, aim at the dead lever inwards behind the space between bottom plate and the roof earlier, the spacing post at dead lever both ends receives the face on the bottom plate respectively and the roof under the face block the back, the transmission makes the column spring compressed to column spring, spacing post further stretches into in the mounting hole, reach the spacing hole department of bottom plate or roof until spacing post, the blocking effect disappears, column spring resets and then promotes spacing post and stretch out the spacing downthehole of embedding behind the mounting hole, thereby realize the simple and easy installation operation of dead lever on the support.

Furthermore, the sliding block comprises two display boards which are arranged in parallel and a connecting rod which is connected with the two display boards, the connecting rod and the two display boards are vertically arranged to be in an I-shaped structure, the connecting rod is used for penetrating through the sliding groove, and the fixing rod is clamped between the two display boards; the outer plate surfaces of the two display plates are used for displaying the same English letters; a screw rod is further arranged in the support behind the fixed rod, and two axial ends of the screw rod are respectively connected with the side plate I and the side plate II; the axial direction of the screw rod is vertical to the axial direction of the fixing rod, and the screw rod is provided with an adaptive nut pair which is used for fixing a camera; the nut pair is driven by a motor to move along the screw rod, and the nut pair drives the camera to move axially along the screw rod; the camera is used for scanning in sequence to obtain letter information on all display panels in the moving direction, the camera is in communication connection with the image processing module, and the image processing module is used for receiving and processing the letter information sent by the camera and transmitting the letter information to the display screen to display word information formed by all letters.

In order to facilitate manual operation of students or teachers, the size of the sliding block is set to be small so as to facilitate finger moving operation, but after words are spelled out, the whole display font is small, and the words are only beneficial to short-distance watching; therefore, the utility model further optimizes the structure, and the support is provided with a character amplifying structure which mainly comprises a camera for scanning and identifying, a mechanism for moving the camera, an image processing module and a display screen; firstly, the structure of a sliding block is improved, the sliding block is arranged into an I-shaped structure consisting of two display panels and a connecting rod, so that the front and the back of the sliding block can simultaneously display the same letters, students and teachers spell and check the spelling condition of words from the front of a fixed rod, a camera and a movable camera are arranged behind the fixed rod, and the spelled words are read from the back of the fixed rod by the camera; specifically, a screw rod transmission mechanism is arranged between the two side plates, the axial direction of the screw rod is vertical to the axial direction of the fixed rod, the screw rod transmission mechanism drives the camera to move along the axial direction of the screw rod, so that the shooting area of the camera is the same as the positioning area of the indicating coil, and the current spelling word is obtained; then the camera transmits the acquired word information to the image processing module, and the image processing module processes the acquired word and transmits the word to the display screen to display the word through the display screen. The camera and the image processing module directly adopt the existing structure.

Furthermore, the motor is fixed on the outer plate surface of the side plate II through the shell cover, the output end of the motor is connected with one end of the screw rod, the other end of the screw rod penetrates through the side plate II, extends into the support and then is connected with the side plate I in a rotating mode, and the motor drives the screw rod to move in a rotating mode; and a guide rod parallel to the screw rod is further arranged between the side plate I and the side plate II, and the nut pair is connected with the guide rod in a sliding manner.

The screw rod transmission mechanism adopts the existing transmission structure and transmission principle, the motor drives the screw rod to rotate, and the screw rod converts the rotation motion into the linear motion of the nut pair through the limiting and guiding action of the guide rod; the outer wall of the nut pair may be provided with a connecting plate, a groove, or the like, and the camera may be attached to the connecting plate or the groove.

Furthermore, the inner wall of the sliding chute is provided with a rubber pad, and the inner plate surfaces of the connecting rod and the two display plates are in pressing contact with the rubber pad.

The rubber pad is arranged on the inner wall of the sliding groove and is mainly used for increasing the friction resistance between the sliding groove and the sliding block, and the sliding block can move and be positioned along the sliding groove.

Furthermore, 27 sliding blocks are arranged on each fixing rod; the 27 sliding blocks are sequentially used for correspondingly displaying the number 0 and the 26 English letters from top to bottom along the axial direction of the fixing rod.

The 27 sliding blocks on each fixed rod are sequentially arranged from top to bottom along the axial direction of the fixed rod, the uppermost sliding block is marked with a number '0', and the following sliding blocks are sequentially marked with a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y and z. When all the sliding blocks are intensively positioned below the indicating line area, the sliding block marked with the number 0 is positioned in the indicating line area, and a row of 0 appears in the straight line area from the front side of the fixed rod to indicate zero resetting; when the words are scanned from the back of the fixed rod through the camera, one row of obtained numbers of 0 is transmitted to the image processing module, only letters are displayed and the numbers of 0 are not displayed through the setting of the image processing module, so that only the letters are displayed on the display screen, namely the letters are a complete English word, the numbers of 0 do not appear in the middle of the word, and the learning and the memory are convenient.

Furthermore, the bottom of the support is provided with a support leg; the display screen is arranged on the top of the support.

The support legs are mainly used for supporting the support frame, so that the support frame is kept at a proper height and is matched with the height of a student or a teacher.

The utility model discloses have following advantage and beneficial effect:

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments 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 principles of the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the utility model;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic view of the structure of the fixing rod and the sliding block;

FIG. 5 is a schematic view of the slider structure of the present invention;

fig. 6 is a schematic view of the overall structure of the fixing rod of the present invention;

FIG. 7 is a partial cross-sectional view of the fastening rod of the present invention;

fig. 8 is a schematic structural view of the screw rod transmission mechanism of the present invention.

Reference numbers and corresponding part names in the drawings: 1-bracket, 101-bottom plate, 102-side plate I, 103-top plate, 104-side plate II, 2-fixed rod, 3-sliding chute, 4-sliding block, 41-display plate, 42-connecting rod, 5-indicating line, 6-telescopic rod, 7-connecting sleeve, 8-reset rod, 9-button, 10-mounting hole, 11-columnar spring, 12-limiting column, 13-screw rod, 14-nut pair, 15-camera, 16-motor, 17-display screen, 18-shell cover, 19-guide rod, 20-supporting leg, 21-strip-shaped hole, 22-motor button and 23-back plate.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

The embodiment provides a teaching aid for English teaching, which comprises a support 1 in a cuboid structure, wherein the support 1 comprises a bottom plate 101, a side plate I102, a top plate 103 and a side plate II 104 which are sequentially connected end to end; 25 fixing rods 2 are arranged between the bottom plate 101 and the top plate 103, the fixing rods 2 are in a cuboid shape, the 25 fixing rods 2 are uniformly distributed in a straight line along the axial direction of the bottom plate 101 and the top plate 103, and the two axial ends of each fixing rod 2 are respectively detachably connected with the corresponding bottom plate 101 and the corresponding top plate 103; the fixed rod 2 is provided with a sliding chute 3 which radially penetrates through the fixed rod 2, the sliding chute 3 on the axial section is also rectangular, and the sliding chute 3 axially extends along the fixed rod 2; 26 sliding blocks 4 are arranged on each fixing rod 2, the sliding blocks 4 are matched with the sliding grooves 3 in a directional sliding mode, and the 26 sliding blocks 4 are axially distributed on the fixing rods 2; an English letter is engraved on the outer surface of each slider 4.

Example 2

Further improved on the basis of the embodiment 1, the axial length of the sliding chute 3 allows 2N-1 sliding blocks 4 to be accommodated; two indicating lines 5 are arranged on the axial middle part of the fixed rod 2 and on the side wall where the sliding groove 3 is located, the indicating lines 5 can be red lines which are more striking, the fixed rod 2 is light-colored, the indicating lines 5 are perpendicular to the axial direction of the fixed rod 2, and the distance between the two indicating lines 5 allows one sliding block 4 to be accommodated; adjacent fixing rods 2 are contacted with each other, and the indicating lines 5 on all the fixing rods 2 are connected end to form two parallel straight line segments. The plate surfaces of two axial ends of the bottom plate 101 are respectively provided with a telescopic rod 6, the fixed section of the telescopic rod 6 is arranged on the plate surface of the bottom plate 101, the axial direction of the telescopic rod section of the telescopic rod 6 is parallel to the axial direction of the fixed rod 2, and the free end of the telescopic section of the telescopic rod 6 is sleeved with a connecting sleeve 7; the device also comprises a reset rod 8, and the two axial ends of the reset rod 8 are respectively fixedly connected with the side walls of the two connecting sleeves 7; the telescopic motion of the telescopic rod 6 drives the reset rod 8 to move up and down along the axial direction of the fixed rod 2, and the rod section of the reset rod 8 between the two connecting sleeves 7 is used for pushing the sliding block 4 to move downwards. The telescopic rod 6 adopts the existing electric hydraulic telescopic rod; the support 1 is provided with a button 9 for controlling the telescopic action of the hydraulic telescopic rod 6. An electric hydraulic telescopic rod can be arranged at one end of the bottom plate 101, a guide slide rod is arranged at the other end of the bottom plate 101, one end of the reset rod 8 is fixedly connected with the end part of the telescopic rod section through a connecting sleeve 7, and the other end of the reset rod 8 is connected with the guide slide rod in a sliding mode through the connecting sleeve 7.

Example 3

The improvement is further improved on the basis of the embodiment 2, mounting holes 10 are formed in the end faces of the two axial ends of the fixing rod 2, and columnar springs 11 are arranged in the mounting holes 10; one axial end of the columnar spring 11 is fixed at the bottom in the mounting hole 10 and can be fixed by a screw through a connecting plate and other structures, and the other axial end of the columnar spring 11 is connected with the bottom end of the limiting column 12; when the columnar spring 11 is in a natural extension state, the bottom end of the limiting column 12 is embedded into the mounting hole 10 in a clearance fit manner; the upper plate surface of the bottom plate 101 and the lower plate surface of the top plate 103 are both provided with limiting holes for being matched with the tops of the limiting columns 12 in an embedded mode. The end faces of both ends in the axial direction of the fixing rod 2 are respectively contacted with the upper plate surface of the bottom plate 101 and the lower plate surface of the top plate 103.

Example 4

On the basis of embodiment 3, the slide block 4 further comprises two display panels 41 arranged in parallel and a connecting rod 42 for connecting the two display panels 41, the connecting rod 42 is arranged perpendicular to the two display panels 41 and is in an I-shaped structure, the connecting rod 42 is used for penetrating through the sliding chute 3, and the fixing rod 2 is clamped between the two display panels 41; the outer panel surfaces of the two display panels 41 are used for displaying the same english alphabet; a screw rod 13 is further arranged in the support 1 behind the fixing rod 2, and two axial ends of the screw rod 13 are respectively connected with the side plate I102 and the side plate II 104; the axial direction of the screw rod 13 is vertical to the axial direction of the fixing rod 2, the screw rod 13 is provided with a matched nut pair 14, and the nut pair 14 is used for fixing a camera 15; the nut pair 14 is driven by the motor 16 to move along the screw rod 13, and the nut pair 14 drives the camera 15 to move axially along the screw rod 13; the camera 15 is used for scanning in sequence to obtain letter information on all display panels 41 in the moving direction, the camera 15 is in communication connection with an image processing module, and the image processing module is used for receiving and processing the letter information sent by the camera 15 and then transmitting the letter information to the display screen 17 to display word information formed by all letters. The inner wall of the sliding chute 3 is provided with a rubber pad, and the connecting rod 42 and the inner plate surfaces of the two display plates 41 are in pressing contact with the rubber pad. Each fixed rod 2 is provided with 27 sliding blocks 4; the 27 sliding blocks 4 are sequentially used for correspondingly displaying the number 0 and the 26 English letters from top to bottom along the axial direction of the fixed rod 2. The screw rod transmission mechanism is the same as the existing screw rod transmission mechanism in principle: the motor 16 is fixed on the outer plate surface of the side plate II 104 through the shell cover 18, the output end of the motor 16 is connected with one end of the screw rod 13, the other end of the screw rod 13 penetrates through the side plate II 104, extends into the support 1 and then is connected with the side plate I102 in a rotating mode, and the motor 16 drives the screw rod 13 to move in a rotating mode; a guide rod 19 parallel to the screw rod 13 is further arranged between the side plate I102 and the side plate II 104, and the nut pair 14 is connected with the guide rod 19 in a sliding mode. And a motor button 22 is arranged on the side plate II 104, so that the forward and reverse rotation of the motor can be directly controlled.

A hollow back plate 23 can be arranged on the bracket 1 to enable the bracket 1 to form a groove-shaped structure, various circuits, power supplies and screw rod transmission mechanisms are accommodated in the hollow back plate 23, a strip-shaped hole 21 is formed in the inner side of the hollow back plate 23, the extending direction of the strip-shaped hole 21 is axially parallel to the screw rod 13, the camera 15 is allowed to shoot letters on the sliding block 4, and the camera 15 can adopt a CMOS camera, such as FIT-CAM-OV 9650; the image processing module can adopt an OK6410-A development board, such as an ARM-S3C 6410-based embedded development board. The camera 15 transmits the obtained image information to the image processing module for recognition, and the image processing module sends the recognition result to an upper computer (such as a desktop computer or a notebook computer) for conversion and then directly displays the result on the display screen 17.

Example 5

In a further improvement on the embodiment 4, the support 1 is provided with a leg 20 at the bottom, and the display screen 17 is directly fixed on the top of the top plate 102.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The teaching aid for English teaching is characterized by comprising a support (1) in a rectangular structure, wherein the support (1) comprises a bottom plate (101), a side plate I (102), a top plate (103) and a side plate II (104) which are sequentially connected end to end; a plurality of fixing rods (2) are arranged between the bottom plate (101) and the top plate (103), the fixing rods (2) are uniformly distributed along the axial direction of the bottom plate (101) and the top plate (103), and two axial ends of each fixing rod (2) are detachably connected with the corresponding bottom plate (101) and the corresponding top plate (103) respectively; the fixed rod (2) is provided with a sliding chute (3) which radially penetrates through the fixed rod (2), and the sliding chute (3) axially extends along the fixed rod (2); n sliding blocks (4) are arranged on each fixed rod (2), N is a positive integer larger than or equal to 26, the sliding blocks (4) are matched with the sliding grooves (3) in a directional sliding mode, and the N sliding blocks (4) are axially distributed on the fixed rods (2); the outer surface of each slider (4) is used for displaying a letter.

2. Teaching aid for english teaching according to claim 1, characterized in that the axial length of the runner (3) allows to house 2N-1 slides (4); two indicating lines (5) are arranged on the axial middle part of the fixed rod (2) and on the side wall where the sliding groove (3) is located, the indicating lines (5) are perpendicular to the axial direction of the fixed rod (2), and the distance between the two indicating lines (5) allows one sliding block (4) to be accommodated; the adjacent fixing rods (2) are contacted with each other, and the indicating lines (5) on all the fixing rods (2) are connected end to form two parallel straight line segments.

3. The teaching aid for English teaching according to claim 2, wherein the plate surfaces of the two axial ends of the bottom plate (101) are respectively provided with a telescopic rod (6), the fixed section of the telescopic rod (6) is arranged on the plate surface of the bottom plate (101), the axial direction of the telescopic rod section of the telescopic rod (6) is parallel to the axial direction of the fixed rod (2), and the free end of the telescopic section of the telescopic rod (6) is sleeved with the connecting sleeve (7); the device is characterized by further comprising a reset rod (8), wherein two axial ends of the reset rod (8) are respectively connected with the side walls of the two connecting sleeves (7); the telescopic motion of telescopic link (6) drives release link (8) and reciprocates along dead lever (2) axial, and the pole section that is located release link (8) between two connecting sleeve (7) is used for promoting slider (4) downstream.

4. A teaching aid for English teaching according to claim 3, wherein the telescopic rod (6) is a hydraulic telescopic rod; the support (1) is provided with a button (9) for controlling the telescopic action of the hydraulic telescopic rod (6).

5. The teaching aid for English teaching according to claim 1, wherein mounting holes (10) are formed in the end faces of the two axial ends of the fixing rod (2), and columnar springs (11) are arranged in the mounting holes (10); one axial end of the columnar spring (11) is fixed at the bottom in the mounting hole (10), and the other axial end of the columnar spring (11) is connected with the bottom end of the limiting column (12); when the columnar spring (11) is in a natural extension state, the bottom end of the limiting column (12) is embedded into the mounting hole (10) in a clearance fit manner; the upper plate surface of the bottom plate (101) and the lower plate surface of the top plate (103) are respectively provided with a limiting hole which is used for being matched with the top end of the limiting column (12) in an embedded mode.

6. A teaching aid for english teaching according to claim 1 or 2, characterized in that the slide (4) comprises two display panels (41) arranged in parallel and a connecting rod (42) connecting the two display panels (41), the connecting rod (42) is arranged perpendicular to the two display panels (41) and is in an i-shaped structure, the connecting rod (42) is used to penetrate the chute (3), and the fixing rod (2) is clamped between the two display panels (41); the outer plate surfaces of the two display plates (41) are used for displaying the same English letters; a screw rod (13) is further arranged in the support (1) behind the fixing rod (2), and two axial ends of the screw rod (13) are respectively connected with the side plate I (102) and the side plate II (104); the axial direction of the screw rod (13) is vertical to the axial direction of the fixing rod (2), the screw rod (13) is provided with an adaptive nut pair (14), and the nut pair (14) is used for fixing a camera (15); the nut pair (14) moves along the screw rod (13) through the driving of the motor (16), and the nut pair (14) drives the camera (15) to move axially along the screw rod (13); the camera (15) is used for scanning in sequence to obtain letter information on all display panels (41) in the moving direction, the camera (15) is in communication connection with the image processing module, and the image processing module is used for receiving and processing the letter information sent by the camera (15) and transmitting the letter information to the display screen (17) to display word information formed by all letters.

7. A teaching aid for English teaching according to claim 6, wherein the motor (16) is fixed on the outer plate surface of the side plate II (104) through a shell cover (18), the output end of the motor (16) is connected with one end of the screw rod (13), the other end of the screw rod (13) penetrates through the side plate II (104) and extends into the support (1) to be rotationally connected with the side plate I (102), and the motor (16) drives the screw rod (13) to rotationally move; a guide rod (19) parallel to the screw rod (13) is further arranged between the side plate I (102) and the side plate II (104), and the nut pair (14) is connected with the guide rod (19) in a sliding mode.

8. A teaching aid for English teaching according to claim 6, characterized in that the inner wall of the sliding groove (3) is provided with a rubber pad, and the connecting rod (42) and the inner plate surfaces of the two display plates (41) are in pressing contact with the rubber pad.

9. A teaching aid for English teaching according to claim 6, characterized in that each fixing rod (2) is provided with 27 sliding blocks (4); the axial of following dead lever (2) is from top to bottom, is used for corresponding on 27 slider (4) and shows 0 and 26 english alphabets of numeral.

10. A teaching aid for English teaching according to claim 6, wherein the bottom of the support (1) is provided with a leg (20); the display screen (17) is arranged at the top of the bracket (1).