CN110053397B

CN110053397B - Display device that english language teaching used

Info

Publication number: CN110053397B
Application number: CN201910483643.9A
Authority: CN
Inventors: 马燕
Original assignee: Lanzhou City University
Current assignee: Lanzhou City University
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2021-05-04
Anticipated expiration: 2039-06-05
Also published as: CN110053397A

Abstract

The invention discloses a display device for English language teaching, which comprises a supporting device, wherein the upper end of the supporting device is fixedly connected with a fixing plate through a damping device, a blackboard is arranged in the middle of the fixing plate, an ash wiping mechanism for wiping the blackboard is arranged on the fixing plate, and a book placing mechanism is arranged on the same side of the fixing plate, which is positioned on the blackboard. When the positioning plate moves, the positioning plate pulls the telescopic air bag to deform, so that negative pressure is generated at the dust inlet to adsorb the wiped dust, and the phenomenon that the dust flies randomly when the blackboard is wiped is effectively reduced.

Description

Display device that english language teaching used

Technical Field

The invention relates to the technical field of teaching instruments, in particular to a display device for English language teaching.

Background

In the English teaching process, because the English words or sentences are not well understood and are not easy to remember, the words or sentences need to be displayed for the students to watch, the time for thinking and remembering can be reserved for the students, and the knowledge can be mastered by the students.

The display device is a very common teaching tool, and teachers can achieve the purpose of teaching students by writing teaching contents on the blackboard of the display device with chalk. Writing with a chalk can cause a lot of chalk dust, and when the blackboard eraser is used for erasing a blackboard, the chalk dust flies to pollute the environment and fall on bodies of teachers and students to stain clothes and hair and skin exposed outside.

At present, the problem that chalk dust flies is solved by a display device, and a teacher needs to write by holding a book on one hand when writing on a blackboard, so that the chalk is very inconvenient.

Disclosure of Invention

The invention aims to: in order to solve the problems of the background art, a display device for English language teaching is provided.

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

the blackboard eraser is characterized by comprising a supporting device, a fixing plate is fixedly connected to the upper end of the supporting device through a damping device, a blackboard is arranged in the middle of the fixing plate, an ash wiping mechanism for wiping the blackboard is installed on the fixing plate, and a book placing mechanism is arranged on the same side, located on the blackboard, of the fixing plate.

As a further description of the above technical solution:

the dust wiping mechanism comprises a slider and a positioning plate fixedly connected to the lower end of the slider, one side, close to the blackboard, of the side wall of the positioning plate is connected with a rubber strip always attached to the blackboard through a first spring, fluffs are uniformly distributed on the rubber strip, an adsorption mechanism used for adsorbing dust is mounted on the positioning plate, and a driving mechanism used for driving the slider to move is further mounted on the fixing plate.

As a further description of the above technical solution:

adsorption equipment includes the riser of fixed connection on the fixed plate lateral wall and fixes the flexible gasbag on its lateral wall, the cavity has been seted up to the lateral wall of locating plate, flexible gasbag's flexible end and cavity intercommunication, the equipartition is opened to the lateral wall of locating plate has and advances the dirt hole with the cavity intercommunication, the lower extreme of locating plate is connected with the dust bag that is used for storing up dirt.

As a further description of the above technical solution:

the driving mechanism comprises a reciprocating screw rod and a gear fixed at one end of the reciprocating screw rod, a sliding groove is formed in the side wall of the fixed plate, the other end of the reciprocating screw rod is connected to the inner wall of the sliding groove in a rotating mode, the sliding block is connected to the reciprocating screw rod in a threaded mode, a device cavity is formed in the side wall of the fixed plate, the gear is located in the device cavity, a groove is formed in the side wall of the fixed plate, a rack meshed with the gear is arranged at the inner top of the groove in a penetrating mode, a pressing plate is fixedly connected to the lower end of the rack, and the pressing plate is.

As a further description of the above technical solution:

the supporting mechanism comprises a telescopic rod, the base is arranged at the upper end of the base, the telescopic end of the telescopic rod is fixedly connected with a mounting seat, and the damping device is mounted on the mounting seat.

As a further description of the above technical solution:

the lower extreme of base is installed and is used for making the universal wheel that the device removed.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the display device is moved by the universal wheel, and the damping device is arranged to enable the fixing plate above the display device to shake less when the display device moves.

2. According to the invention, a book can be placed on the placing frame, and can be fixed through the positioning support, so that the book is convenient for teachers to use, and the books do not need to be held by hands.

3. According to the blackboard eraser, the pressing plate is pressed, the pressing plate moves downwards to drive the rack to move downwards, the rack moves downwards to drive the gear to rotate, the gear rotates to drive the reciprocating lead screw to rotate, the reciprocating lead screw rotates to drive the sliding block to move, and therefore fluff on the rubber strips wipes a blackboard.

4. According to the invention, when the positioning plate moves, the positioning plate pulls the telescopic air bag to deform, so that negative pressure is generated at the dust inlet, the wiped dust is adsorbed, the phenomenon that the dust flies randomly when the blackboard is wiped is effectively reduced, and the dust entering the cavity through the dust inlet falls into the dust storage bag.

Drawings

FIG. 1 is a schematic structural diagram of a display device for English language teaching according to the present invention;

FIG. 2 is a schematic cross-sectional view of a positioning plate of a display device for English language teaching according to the present invention;

FIG. 3 is an enlarged schematic view of a structure at the position B of the display device for English language teaching according to the present invention;

fig. 4 is an enlarged schematic view of a structure at a position a of the display device for english language teaching according to the present invention.

Illustration of the drawings:

the book shelf comprises a supporting mechanism 1, a sleeve 11, a movable rod 12, a mounting seat 13, a base 14, a damping device 2, a third spring 21, a positioning seat 22, a rotating rod 23, a positioning shaft 24, a cross rod 25, a rubber pad 26, a supporting column 27, an adsorption mechanism 3, a telescopic air bag 31, a dust removal bag 32, a dust inlet hole 33, a vertical plate 34, a sliding block 35, fluff 36, a positioning plate 37, a rubber strip 38, a first spring 39, a book placing mechanism 4, a placing rack 41, a placing groove 42, a positioning bracket 43, a driving mechanism 5, a sliding groove 51, a reciprocating lead screw 52, a rack 53, a gear 54, a pressing plate 55, a second spring 56, a groove 57, a blackboard 6 and a fixing plate 7.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution: including a strutting arrangement 2, locating seat 22 on 2 fixedly connected with fixed plate 7 of damping device is passed through to strutting arrangement 2's upper end, it has cross arrangement's bull stick 23 to rotate on the locating seat 22, the lateral wall of two bull sticks 23 all runs through and is equipped with the bar groove, it is equipped with location axle 24 to run through between two bar grooves, the one end that locating seat 22 was kept away from to two bull sticks 23 rotates jointly and is connected with horizontal pole 25, the upper end fixedly connected with support column 27 of horizontal pole 25, be provided with rubber pad 26 between support column 27 and the fixed plate 7, location axle 24 passes through third spring 21 elastic connection on mount pad 13.

The middle part of the fixed plate 7 is provided with a blackboard 6, the fixed plate 7 is provided with a dust wiping mechanism for wiping the blackboard, and the fixed plate 7 is provided with a book placing mechanism at the same side of the blackboard 6.

The book placing mechanism 4 includes a placing groove 42 formed in the side wall of the fixing plate 7, a placing frame 41 for placing a book is provided in the placing groove 42, and a positioning bracket 43 is provided on the placing frame 41.

Specifically, as shown in fig. 1 to 4, the dust wiping mechanism includes a slider 35 and a positioning plate 37 fixedly connected to the lower end of the slider 35, one side of the sidewall of the positioning plate 37, which is close to the blackboard 6, is elastically connected with a rubber strip 38, which is always attached to the blackboard 6, through a first spring 39, fluff 36 is uniformly distributed on the rubber strip 38, the positioning plate 37 is provided with an adsorption mechanism 3 for adsorbing dust, and the fixing plate 7 is further provided with a driving mechanism 5 for driving the slider 35 to move.

Specifically, as shown in fig. 1 to 4, the adsorption mechanism 3 includes a vertical plate 34 fixedly connected to the side wall of the fixing plate 7 and a telescopic airbag 31 fixed to the side wall thereof, a cavity is formed in the side wall of the positioning plate 37, a telescopic end of the telescopic airbag 31 is communicated with the cavity, dust inlet holes 33 communicated with the cavity are uniformly formed in the side wall of the positioning plate 37, and a dust removing bag 32 for storing dust is connected to the lower end of the positioning plate 37.

Specifically, as shown in fig. 1 to 4, the driving mechanism 5 includes a reciprocating screw 52 and a gear 54 fixed at one end of the reciprocating screw 52, a sliding groove 51 is formed in a side wall of the fixing plate 7, the other end of the reciprocating screw 52 is rotatably connected to an inner wall of the sliding groove 51, the slider 35 is in threaded connection with the reciprocating screw 52, a device cavity is formed in the side wall of the fixing plate 7, the gear 54 is located in the device cavity, a groove 57 is formed in the side wall of the fixing plate 7, a rack 53 meshed with the gear 54 is arranged at the inner top of the groove 57 in a penetrating manner, a pressing plate 55 is fixedly connected to the lower end of the rack 53, and the pressing plate 55 is elastically.

Specifically, as shown in fig. 1 to 4, the supporting mechanism 1 includes a base 14, a telescopic rod already disposed at an upper end of the base 14, the telescopic rod includes a sleeve 11 and a movable rod 12 disposed in the sleeve 11, a mounting seat 13 is fixedly connected to a telescopic end of the telescopic rod, and the damping device 2 is mounted on the mounting seat 13.

Specifically, as shown in fig. 1-4, the lower end of the base 14 is fitted with universal wheels for moving the device.

The working principle is as follows: when the invention is used, a teacher can move the display device through the universal wheel, the arrangement of the damping device can ensure that the fixed plate 7 above the device shakes less when the device moves, the teacher can place books on the placing rack 41, the book can be fixed by the positioning bracket 43, and when a teacher needs to wipe the blackboard 6, only by pressing the pressing plate 55, the pressing plate 55 moves downwards to drive the rack 53 to move downwards, the rack 53 moves downwards to drive the gear 54 to rotate, the gear 54 rotates to drive the reciprocating screw 52 to rotate, the reciprocating screw 52 rotates to drive the slide block 35 to move, the nap 36 on the rubber strip 38 is wiped against the blackboard 6, and when the positioning plate 37 is moved, the positioning plate 37 pulls the telescopic air bag 32 to deform, so that negative pressure is generated at the dust inlet 33, the dust bag can adsorb the wiped dust, effectively reduce the phenomenon that the dust flies disorderly when the blackboard is wiped, and the dust entering the cavity through the dust inlet hole 33 falls into the dust storage bag 32.

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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. Display device that english language teaching used, its characterized in that includes a supporting mechanism (1), damping device (2) fixedly connected with fixed plate (7) is passed through to the upper end of supporting mechanism (1), the middle part of fixed plate (7) is provided with blackboard (6), install on fixed plate (7) and be used for wiping the blackboard and clean grey mechanism, the fixed plate (7) are located the homonymy of blackboard (6) and are provided with books placement mechanism, it includes slider (35) and fixed connection locating plate (37) at slider (35) lower extreme to clean grey mechanism, one side that the lateral wall of locating plate (37) is close to blackboard (6) has rubber strip (38) of laminating with blackboard (6) all the time through first spring (39) elastic connection, the equipartition has fine hair (36) on rubber strip (38), install on locating plate (37) and be used for carrying out absorbent adsorption apparatus (3) to the dust, still install actuating mechanism (5) that are used for drive slider (35) to remove on fixed plate (7), adsorption apparatus constructs (3) including riser (34) of fixed connection on fixed plate (7) lateral wall and fix flexible gasbag (31) on riser (34) lateral wall, the cavity has been seted up to the lateral wall of locating plate (37), the flexible end and the cavity intercommunication of flexible gasbag (31), the lateral wall equipartition of locating plate (37) has dust inlet hole (33) with the cavity intercommunication, the lower extreme of locating plate (37) is connected with dust bag (32) that are used for storing up dirt, actuating mechanism (5) are including reciprocal lead screw (52) and fix gear (54) in reciprocal lead screw (52) one end, spout (51) have been seted up to the lateral wall of fixed plate (7), the other end rotation of reciprocal lead screw (52) is connected on the inner wall of spout (51), the device is characterized in that the sliding block (35) is in threaded connection with the reciprocating lead screw (52), a device cavity is formed in the side wall of the fixing plate (7), the gear (54) is located in the device cavity, a groove (57) is formed in the side wall of the fixing plate (7), a rack (53) meshed with the gear (54) penetrates through the inner top of the groove (57), a pressing plate (55) is fixedly connected to the lower end of the rack (53), the pressing plate (55) is elastically connected to the inner wall of the groove (57) through a second spring (56), the supporting mechanism comprises a base (14) and a telescopic rod arranged at the upper end of the base (14), the telescopic end of the telescopic rod is fixedly connected with a mounting seat (13), the damping device (2) is mounted on the mounting seat (13), a universal wheel used for enabling the device to move is mounted at the lower end of the base (14), and when the positioning, the positioning plate pulls the telescopic air bag to deform, so that negative pressure is generated at the dust inlet, and the cleaned dust is adsorbed.