CN215495566U

CN215495566U - Demonstration device for English word teaching

Info

Publication number: CN215495566U
Application number: CN202121414839.1U
Authority: CN
Inventors: 刘冬; 柳贺
Original assignee: Liuhe Education And Training Center Shuangtaizi District Panjin City
Current assignee: Liuhe Education And Training Center Shuangtaizi District Panjin City
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-11
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a demonstration device for English word teaching, which comprises a base, wherein the base is of a hollow structure, two symmetrical arc-shaped slide rails are fixedly embedded in the inner wall of the bottom of the base, limiting rods are connected to the inner parts of the arc-shaped slide rails in a sliding manner, one ends of the two limiting rods penetrate through the top of the base and are connected with the same demonstration board in a sliding sleeved manner, and a sliding opening matched with the limiting rods is formed in the top of the base; the height-adjustable demonstration board is simple in structure and convenient to use, the height of the demonstration board can be adjusted by rotating the handle, so that the teaching staff can write and use conveniently, the teaching staff can write conveniently through the dividing line, meanwhile, the height required by the written word can be clearly known by the student, so that the study of the student is facilitated, the position of the limiting rod can be fixed through the pedal, and meanwhile, the rotation of the demonstration board is facilitated.

Description

Demonstration device for English word teaching

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a demonstration device for English word teaching.

Background

The generation of English words is a product of two-way communication of Chinese and English languages, some names and concepts with Chinese characteristics enter the English words, and meanwhile some English words enter Chinese, new meanings are derived in the culture environment, and semantic culture characteristics of the English words are formed, so that the learning of the English words is very important, and the demonstration device for English word teaching also becomes very important.

The existing demonstration device is usually fixedly installed on a wall when in use, so that the demonstration device cannot be lifted and turned, the inconvenience is brought to the teacher for writing, the inconvenience is brought to the student for watching words at corners of the demonstration device due to different positions of students in the teaching process, the required height of the words is different when the words are written, the high definition required by the words is not conveniently reflected when the words are written by the common demonstration device, the teaching effect is poor, and the problem is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a demonstration device for English word teaching.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a presentation device is used in english word teaching, includes the base, the base is hollow structure, the fixed arc slide rail that inlays of bottom inner wall of base has two symmetries, the inside sliding connection of arc slide rail has the gag lever post, two the top and the slip cap that the base was all run through to the one end of gag lever post are established and are connected with same demonstration board, the top of base is provided with the slip mouth with gag lever post matched with, one of them one side of gag lever post is provided with the locating component who makes the gag lever post location, the inside of base is provided with the elevating module who makes the demonstration board go up and down.

Preferably, the locating component includes one side sliding connection's of gag lever post L type slide bar, the bottom and the fixedly connected with footboard of base are run through to the bottom of L type slide bar, the one end top fixedly connected with locating lever of footboard, a plurality of and locating lever matched with constant head tanks have been seted up to the bottom of base, the bottom of base seted up with L type slide bar matched with arc mouth, one side fixedly connected with fixed plate of gag lever post, the top fixedly connected with spring of fixed plate, the top of spring and the bottom fixed connection of L type slide bar.

Preferably, elevating assembly includes the bottom inner wall fixed connection's of base mounting panel, the top of mounting panel is rotated and is connected with the threaded rod, the inside fixed of demonstration board is inlayed and is had a screw thread section of thick bamboo, the top of threaded rod run through the base extend to the inside of a screw thread section of thick bamboo and with screw thread section of thick bamboo threaded connection, the fixed cover of outer wall of threaded rod is equipped with first bevel gear, one side of base is rotated and is connected with the pivot, base and fixedly connected with second bevel gear are run through to the one end of pivot, second bevel gear meshes with first bevel gear mutually.

Preferably, one side of the demonstration board is provided with a plurality of dividing lines.

Preferably, one end of the rotating shaft is fixedly connected with a handle.

Preferably, four corners of the bottom of the base are fixedly connected with universal wheels.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, the rotating shaft is driven to rotate by rotating the handle, the rotating shaft can drive the second bevel gear to rotate when rotating, and the second bevel gear can drive the threaded rod to rotate through the first bevel gear when rotating, so that the demonstration board can ascend or descend.

2. According to the utility model, the pedal is treaded to drive the positioning rod to move, so that the positioning rod is far away from the positioning groove, the demonstration board can be pulled to rotate, when the demonstration board rotates to a specified angle, the pedal is loosened, the positioning rod extends into the positioning groove again through the elasticity of the spring, and the position of the limiting rod is fixed.

The height-adjustable demonstration board is simple in structure and convenient to use, the height of the demonstration board can be adjusted by rotating the handle, so that the teaching staff can write and use conveniently, the teaching staff can write conveniently through the dividing line, meanwhile, the height required by the written word can be clearly known by the student, so that the student can learn conveniently, the position of the limiting rod can be fixed through the pedal, and meanwhile, the demonstration board can rotate conveniently, so that the student can watch and learn conveniently.

Drawings

FIG. 1 is a schematic view of a front view of a demonstration apparatus for English word teaching according to the present invention;

FIG. 2 is a schematic cross-sectional view of the demonstration apparatus for English word teaching in FIG. 1;

fig. 3 is a schematic view of a partial bottom view structure of a base of the demonstration apparatus for teaching english words according to the present invention.

In the figure: 1. a base; 2. a limiting rod; 3. an arc-shaped slide rail; 4. a demonstration board; 5. a threaded barrel; 6. mounting a plate; 7. a threaded rod; 8. a first bevel gear; 9. a second bevel gear; 10. a rotating shaft; 11. a handle; 12. an L-shaped sliding rod; 13. a pedal; 14. positioning a rod; 15. a spring; 16. a fixing plate; 17. positioning a groove; 18. a universal wheel; 19. and (6) dividing the lines.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-3, a presentation device is used in english word teaching, including base 1, base 1 is hollow structure, base 1's bottom inner wall is fixed to be inlayed and is had two symmetrical arc slide rails 3, the inside sliding connection of arc slide rail 3 has gag lever post 2, the top and the slip cap that base 1 was all run through to the one end of two gag lever posts 2 are established and are connected with same demonstration board 4, base 1's top is provided with the slip mouth with gag lever post 2 matched with, one side of one of them gag lever post 2 is provided with the locating component who makes gag lever post 2 fix a position, base 1's inside is provided with the elevating module who makes demonstration board 4 go up and down.

Example two

The embodiment is improved on the basis of the first embodiment: referring to fig. 1-3, a demonstration device for english word teaching, comprising a base 1, wherein the base 1 is a hollow structure, four corners of the bottom of the base 1 are fixedly connected with universal wheels 18, the base 1 can be moved conveniently by the universal wheels 18, two symmetrical arc-shaped slide rails 3 are fixedly embedded on the inner wall of the bottom of the base 1, limiting rods 2 are slidably connected inside the arc-shaped slide rails 3, one ends of the two limiting rods 2 penetrate through the top of the base 1 and are slidably sleeved with a same demonstration board 4, one side of the demonstration board 4 is provided with a plurality of dividing lines 19, a teacher can write conveniently by the dividing lines, meanwhile, a student can clearly know the height required by the written word, the top of the base 1 is provided with a sliding port matched with the limiting rods 2, one side of one limiting rod 2 is provided with a positioning component for positioning the limiting rods 2, the positioning assembly comprises an L-shaped sliding rod 12 connected with one side of a limiting rod 2 in a sliding manner, the bottom end of the L-shaped sliding rod 12 penetrates through the bottom of a base 1 and is fixedly connected with a pedal 13, a positioning rod 14 is fixedly connected with the top of one end of the pedal 13, a plurality of positioning grooves 17 matched with the positioning rod 14 are formed in the bottom of the base 1, an arc-shaped opening matched with the L-shaped sliding rod 12 is formed in the bottom of the base 1, a fixing plate 16 is fixedly connected with one side of the limiting rod 2, a spring 15 is fixedly connected with the top of the fixing plate 16, the top end of the spring 15 is fixedly connected with the bottom of the L-shaped sliding rod 12, the position of the limiting rod 2 can be fixed through mutual matching between the L-shaped sliding rod 12, the pedal 13, the positioning rod 14 and the positioning grooves 17, the rotation of the limiting rod 2 is facilitated, so that the demonstration plate 4 can be conveniently rotated, a handle 11 is fixedly connected with one end of a rotating shaft 10, and the rotating shaft 10 can be conveniently driven to rotate through the handle 11, base 1's inside is provided with the lifting unit who makes demonstration board 4 go up and down, lifting unit includes base 1's bottom inner wall fixed connection's mounting panel 6, the top of mounting panel 6 is rotated and is connected with threaded rod 7, demonstration board 4's inside fixed the inlaying has threaded cylinder 5, the top of threaded rod 7 runs through base 1 and extends to threaded cylinder 5's inside and with threaded cylinder 5 threaded connection, the fixed cover of outer wall of threaded rod 7 is equipped with first bevel gear 8, one side of base 1 is rotated and is connected with pivot 10, base 1 and fixedly connected with second bevel gear 9 are run through to the one end of pivot 10, second bevel gear 9 meshes with first bevel gear 8 mutually, through the mutually supporting between threaded cylinder 5 and the threaded rod 7, can make demonstration board 4 go up and down, thereby be convenient for the teaching personnel write and use.

The working principle is as follows: when the demonstration board 4 needs to be lifted or lowered, the rotating handle 11 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the second bevel gear 9 to rotate when rotating, the second bevel gear 9 drives the first bevel gear 8 to rotate when rotating, the first bevel gear 8 drives the threaded rod 7 to rotate when rotating, so that the demonstration board 4 is lifted or lowered, when the demonstration board 4 needs to be tilted, the pedal 13 is treaded to drive the positioning rod 14 to move, so that the positioning rod 14 is far away from the positioning groove 17, meanwhile, the pedal 13 drives the L-shaped sliding rod 12 to move when moving, the L-shaped sliding rod 12 compresses the spring 15 when moving, at the moment, the demonstration board 4 can be pulled to rotate, when the demonstration board 4 rotates, the limiting rod 2 rotates on the arc-shaped sliding rail 3, so that the stability of the demonstration board 4 is ensured, when the demonstration board 4 rotates to a specified angle, when the pedal 13 is released, the L-shaped sliding rod 12 returns to the original position due to the elasticity of the spring 15, so that the positioning rod 14 extends into the positioning slot 17 again to fix the position of the limiting rod 2. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a presentation device is used in english word teaching, includes base (1), its characterized in that, base (1) is hollow structure, the fixed arc slide rail (3) of inlaying in bottom inner wall of base (1), the inside sliding connection of arc slide rail (3) has gag lever post (2), two the top and the slip cap that base (1) was all run through to the one end of gag lever post (2) are established and are connected with same demonstration board (4), the top of base (1) is provided with and is established with gag lever post (2) matched with slip mouth, one of them one side of gag lever post (2) is provided with the locating component who makes gag lever post (2) location, the inside of base (1) is provided with the lifting unit who makes demonstration board (4) go up and down.

2. The demonstration device for teaching English words according to claim 1, wherein the positioning assembly comprises an L-shaped sliding rod (12) slidably connected to one side of a limiting rod (2), the bottom end of the L-shaped sliding rod (12) penetrates through the bottom of the base (1) and is fixedly connected with a pedal (13), a positioning rod (14) is fixedly connected to the top of one end of the pedal (13), a plurality of positioning grooves (17) matched with the positioning rod (14) are formed in the bottom of the base (1), an arc-shaped opening matched with the L-shaped sliding rod (12) is formed in the bottom of the base (1), a fixing plate (16) is fixedly connected to one side of the limiting rod (2), a spring (15) is fixedly connected to the top of the fixing plate (16), and the top end of the spring (15) is fixedly connected to the bottom of the L-shaped sliding rod (12).

3. The demonstration device for teaching of english words of claim 1, characterized in that, elevating assembly includes bottom inner wall fixed connection's of base (1) mounting panel (6), the top of mounting panel (6) is rotated and is connected with threaded rod (7), the inside fixed of demonstration board (4) is inlayed and is had threaded cylinder (5), the top of threaded rod (7) run through base (1) extend to the inside of threaded cylinder (5) and with threaded cylinder (5) threaded connection, the fixed cover of outer wall of threaded rod (7) is equipped with first bevel gear (8), one side of base (1) is rotated and is connected with pivot (10), the one end of pivot (10) runs through base (1) and fixedly connected with second bevel gear (9), second bevel gear (9) mesh with first bevel gear (8).

4. A demonstration device for teaching english words according to claim 1, wherein said demonstration board (4) is provided with a plurality of dividing lines (19) on one side.

5. A demonstration device for teaching english words according to claim 3 wherein said spindle (10) has a handle (11) fixedly attached to one end.

6. The demonstration device for teaching English words according to claim 1, wherein universal wheels (18) are fixedly connected to four corners of the bottom of the base (1).