CN210970441U

CN210970441U - Drawing board for English teaching

Info

Publication number: CN210970441U
Application number: CN201921281260.5U
Authority: CN
Inventors: 张晨
Original assignee: Jian College
Current assignee: Jian College
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-07-10
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a drawing board for English teaching, which comprises a bottom board, a telescopic rod, a drawing board, a connecting board, a fixed sleeve, an internal thread sleeve, a threaded rod and a self-locking universal wheel, wherein the upper surface of the bottom board is symmetrically fixed with the telescopic rod, the top of the telescopic rod is fixed with the drawing board, the lower ends of the two telescopic rods on the bottom board are fixed with the connecting board, the middle part of the connecting board is embedded and fixed with the fixed sleeve, the top of the fixed sleeve is rotationally connected with the internal thread sleeve through a bearing, the internal thread sleeve is connected with the threaded rod through the thread, the top of the threaded rod is fixedly connected with the drawing board, the threaded rod is connected with the inner wall of the fixed sleeve in a sliding way, the bottom of the bottom board is symmetrically fixed with the self-locking universal wheel for English, the drawing board for teaching can, is convenient for people to use.

Description

Drawing board for English teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a drawing board is used in english teaching.

Background

Along with the popularization and promotion of English worldwide, English education major is increasingly paid attention. When carrying out english teaching, need write the english word on the drawing board, thereby conveniently give the detailed explanation english word of student, and present drawing board for english teaching is when using, the teacher can write teaching content through the chalk on the drawing board, when the teacher need erase the content, the chalk dust can fly away everywhere, influence indoor air quality greatly, cause the pollution of air, and also have certain bad department to student's health, and present drawing board is not convenient for people and adjusts the height of drawing board according to teacher's height, be not convenient for people to use. Therefore, a drawing board for English teaching is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drawing board is used in english teaching to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drawing board for english teaching, includes bottom plate, telescopic link, drawing board, connecting plate, fixed sleeve, internal thread sleeve, threaded rod and auto-lock universal wheel, the surface symmetry is fixed with the telescopic link on the bottom plate, the telescopic link top is fixed with the drawing board, two telescopic link lower extremes on the bottom plate are fixed with the connecting plate, the connecting plate middle part is inlayed and is fixed with the fixed sleeve, the fixed sleeve top is rotated through the bearing and is connected with the internal thread sleeve, internal thread sleeve inner wall threaded connection has the threaded rod, and threaded rod top and drawing board fixed connection, threaded rod and fixed sleeve inner wall sliding connection, bottom plate bottom symmetry is fixed with the auto-lock universal wheel.

Preferably, a cloth bag dust collector is fixed in the middle of the upper surface of the base plate, a collecting cylinder is fixed at one end, close to the cloth bag dust collector, of the upper surface of the base plate, a spiral telescopic pipe is placed on the inner wall of the collecting cylinder, one end of the spiral telescopic pipe penetrates through the collecting cylinder and is communicated with an air inlet of the cloth bag dust collector, a placing plate is fixed at one end of the drawing plate, a dust collecting handle is placed on the upper surface of the placing plate, one end, far away from the cloth bag dust collector, of the spiral telescopic pipe is communicated with the dust collecting handle, a fixing box is fixed at one end, far away from the spiral telescopic pipe, of the dust collecting handle, the dust collecting handle is communicated with the fixing box, a fixing shell is arranged on the inner wall of the fixing box, a fixing plate is.

Preferably, dust absorption holes are formed in the surfaces of the fixed shell and the sponge block at equal intervals.

Preferably, a microswitch is fixed at one end of the outer side of the dust collection handle and is electrically connected with the bag-type dust collector.

Preferably, the upper surface of the bottom plate is fixed with a storage battery, and the storage battery is electrically connected with the bag-type dust collector.

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

1. the utility model discloses when the mr need erase the content on the drawing board, people hold the collection dirt handle through the hand, and take up fixed box, make the sponge piece in the set casing make a round trip to lightly wipe on the drawing board, erase the chalk word on the drawing board, people press micro-gap switch when holding collection dirt handle this moment, and then make the sack cleaner start, make the sack cleaner take out the air in collection dirt handle and the fixed box through the flexible pipe of spiral, make formation negative pressure in the fixed box, make external air get into in the fixed box, and in being taken out the sack cleaner through collection dirt handle and the flexible pipe of spiral, the air is when being sucked, take the chalk dust piece of erasing to be sucked in the sack cleaner, and then make the chalk dust can not fly away at will, prevent air pollution.

2. The utility model discloses when people need adjust the height of drawing board, people are through rotatory internal thread sleeve, and then can drive the threaded rod up-and-down motion, threaded rod and drawing board fixed connection, and the drawing board can't rotate under the spacing of telescopic link, and then make the threaded rod up-and-down motion, and then make the threaded rod drive the drawing board up-and-down motion for people adjust the height of drawing board.

Drawings

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

fig. 2 is a schematic view of the sectional structure of the dust collecting handle of the present invention.

In the figure: 1. a base plate; 2. a telescopic rod; 3. drawing a board; 4. a connecting plate; 5. fixing the sleeve; 6. an internally threaded sleeve; 7. a threaded rod; 8. a bag type dust collector; 9. a collection canister; 10. a spiral extension tube; 11. placing the plate; 12. a dust collecting handle; 13. a fixing box; 14. a stationary case; 15. a fixing plate; 16. a sponge block; 17. a dust collection hole; 18. a microswitch; 19. a storage battery; 20. self-locking universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a drawing board for english teaching, includes bottom plate 1, telescopic link 2, drawing board 3, connecting plate 4, fixed sleeve 5, internal thread sleeve 6, threaded rod 7 and auto-lock

universal wheel

20, 1 upper surface symmetry of bottom plate is fixed with

telescopic link

2, 2 tops of telescopic link are fixed with

drawing board

3, 2 lower extremes of two telescopic links on the bottom plate 1 are fixed with connecting

plate

4, 4 middle parts of connecting plate are inlayed and are fixed with

fixed sleeve

5, 5 tops of fixed sleeve are rotated through the bearing and are connected with

internal thread sleeve

6, 6 inner wall threaded connection of internal thread sleeve have threaded

rod

7, and 7 tops of threaded rod and drawing board 3 fixed connection, threaded

rod

7 and 5 inner wall sliding connection of fixed sleeve, 1 bottom symmetry of bottom plate is fixed with auto-lock universal wheel 20.

A cloth bag dust collector 8 is fixed in the middle of the upper surface of the bottom plate 1, a collecting cylinder 9 is fixed at one end of the upper surface of the bottom plate 1, which is close to the cloth bag dust collector 8, a spiral telescopic pipe 10 is placed on the inner wall of the collecting cylinder 9, one end of the spiral telescopic pipe 10 penetrates through the collecting cylinder 9 and is communicated with an air inlet of the cloth bag dust collector 8, a placing plate 11 is fixed at one end of the drawing plate 3, a dust collecting handle 12 is placed on the upper surface of the placing plate 11, one end of the spiral telescopic pipe 10, which is far away from the cloth bag dust collector 8, is communicated with the dust collecting handle 12, a fixing box 13 is fixed at one end of the dust collecting handle 12, which is far away from the spiral telescopic pipe 10, the dust collecting handle 12 is communicated with the fixing box 13, a fixing shell 14 is arranged on the inner wall of the fixing box 13, fixing plates 15 are fixed, the chalk dust which is erased is convenient to collect, and the dust is prevented from floating.

Dust suction holes 17 are formed in the surfaces of the fixed shell 14 and the sponge block 16 at equal intervals, so that dust can be sucked into the cloth bag dust collector 8 through the dust suction holes 17, and the dust removal efficiency is improved.

A microswitch 18 is fixed at one end of the outer side of the dust collection handle 12, and the microswitch 18 is electrically connected with the bag-type dust collector 8, so that people can control the opening and closing of the bag-type dust collector 8 conveniently.

The storage battery 19 is fixed on the upper surface of the bottom plate 1, and the storage battery 19 is electrically connected with the bag-type dust collector 8, so that the bag-type dust collector 8 can be powered when power is off in a classroom.

The working principle is as follows: when a teacher needs to erase the contents on the drawing board 3, the teacher holds the dust collecting handle 12 by hand, and then takes up the fixed box 13, so that the sponge block 16 in the fixed shell 14 lightly wipes the drawing board 3 back and forth, and erases the chalk characters on the drawing board 3, at this time, the teacher holds the dust collecting handle 12 and presses the microswitch 18, and then the cloth bag dust collector 8 starts, so that the cloth bag dust collector 8 extracts the air in the dust collecting handle 12 and the fixed box 13 through the spiral extension tube 10, so that negative pressure is formed in the fixed box 13, so that the outside air enters the fixed box 13 and is extracted into the cloth bag dust collector 8 through the dust collecting handle 12 and the spiral extension tube 10, when the air is sucked, the erased chalk dust is sucked into the cloth bag dust collector 8 together, and the chalk dust is not scattered randomly, and air pollution is prevented, when the height of the drawing board 3 needs to be adjusted by people, people are through rotatory internal thread sleeve 6, and then can drive 7 up-and-down motion of threaded rod, threaded rod 7 and drawing board 3 fixed connection, and drawing board 3 can't rotate under the spacing of telescopic link 2, and then make 7 up-and-down motion of threaded rod, and then make 7 drive 3 up-and-down motion of drawing board of threaded rod for people adjust the height of drawing board 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drawing board is used in english teaching, includes bottom plate (1), telescopic link (2), drawing board (3), connecting plate (4), fixed sleeve (5), internal thread sleeve (6), threaded rod (7) and auto-lock universal wheel (20), its characterized in that: bottom plate (1) upper surface symmetry is fixed with telescopic link (2), telescopic link (2) top is fixed with drawing board (3), two telescopic link (2) lower extreme on bottom plate (1) are fixed with connecting plate (4), connecting plate (4) middle part is inlayed and is fixed with fixed sleeve (5), fixed sleeve (5) top is rotated through the bearing and is connected with interior thread bush (6), interior thread bush (6) inner wall threaded connection has threaded rod (7), and threaded rod (7) top and drawing board (3) fixed connection, threaded rod (7) and fixed sleeve (5) inner wall sliding connection, bottom plate (1) bottom symmetry is fixed with auto-lock universal wheel (20).

2. The drawing board for english teaching of claim 1, wherein: a bag dust collector (8) is fixed in the middle of the upper surface of the bottom plate (1), a collecting cylinder (9) is fixed at one end, close to the bag dust collector (8), of the upper surface of the bottom plate (1), a spiral telescopic pipe (10) is placed on the inner wall of the collecting cylinder (9), one end of the spiral telescopic pipe (10) penetrates through the collecting cylinder (9) and is communicated with an air inlet of the bag dust collector (8), a placing plate (11) is fixed at one end of the drawing plate (3), a dust collecting handle (12) is placed on the upper surface of the placing plate (11), one end, far away from the bag dust collector (8), of the spiral telescopic pipe (10) is communicated with a dust collecting handle (12), a fixing box (13) is fixed at one end, far away from the spiral telescopic pipe (10), of the dust collecting handle (12) is communicated with the fixing box (13), a fixing shell (14) is arranged on the inner wall of, the utility model discloses a portable fixing device, including set casing (14), fixed plate (15) and fixed box (13) inner wall fixed connection, set casing (14) lateral wall equidistance is fixed with fixed plate (15), and set casing (14) inner wall is inlayed and is fixed with sponge piece (16).

3. The drawing board for english teaching of claim 2, wherein: dust absorption holes (17) are formed in the surfaces of the fixed shell (14) and the sponge block (16) at equal intervals.

4. The drawing board for english teaching of claim 2, wherein: a microswitch (18) is fixed at one end of the outer side of the dust collecting handle (12), and the microswitch (18) is electrically connected with the bag dust collector (8).

5. The drawing board for english teaching of claim 1, wherein: a storage battery (19) is fixed on the upper surface of the bottom plate (1), and the storage battery (19) is electrically connected with the cloth bag dust collector (8).