CN211969022U

CN211969022U - Writing board eraser for training and teaching

Info

Publication number: CN211969022U
Application number: CN202020162395.6U
Authority: CN
Inventors: 禹立祥
Original assignee: Yangzhou Hongyi Technology Training Co ltd
Current assignee: Yangzhou Hongyi Technology Training Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-11-20
Anticipated expiration: 2030-02-11

Abstract

The utility model discloses a training and teaching writing board eraser, which comprises a blackboard eraser main body, an erasing strip, a dust absorption mechanism and a protection mechanism, wherein the dust absorption mechanism is positioned on one side surface of the blackboard eraser main body and comprises a button, a connecting plate is arranged inside the blackboard eraser main body, and one side surface of the connecting plate is fixedly connected with one side surface of the button; the utility model discloses a button that sets up, the dust of having effectively avoided the user to produce when using the blackboard eraser is harmful to the human body, be favorable to reducing the dust and fly upward, make user's mood joyful, and then improved user's work efficiency, first lag, the second lag through setting up, the effectual blackboard eraser of having avoided may drop in the use, can not effectively protect, play fine guard action to the blackboard eraser, be favorable to protecting the blackboard eraser of different specifications, the commonality is stronger, the life of blackboard eraser has been improved.

Description

Writing board eraser for training and teaching

Technical Field

The utility model belongs to the technical field of teaching aid, concretely relates to training and teaching are with board eraser.

Background

The blackboard eraser and the chalk are the most commonly used teaching tools, a teacher needs to use a large amount of blackboard eraser and chalk when writing on a blackboard, the blackboard eraser in the prior art can only erase chalk dust from a blackboard, and the chalk dust flies around due to the up-and-down sliding of the blackboard eraser, so that the body health of students and the teacher is influenced; some prior art's blackboard erasers have increased the function of dust absorption, use battery powered mostly, and the energy consumption is big, and the noise is big, and is not environmental protection, uses inconveniently, and is with high costs.

The existing blackboard eraser still has some defects in the using procedure, chalk dust flies around due to the fact that the blackboard eraser slides up and down when the blackboard eraser is used, physical health of students and teachers is affected, the blackboard eraser can fall down in the using process, effective protection cannot be achieved, and the service life of the blackboard eraser is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a training and teaching are with board eraser to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a writing board eraser for training and teaching comprises an eraser main body, an eraser strip, a dust collection mechanism and a protection mechanism, wherein the dust collection mechanism is positioned on one side surface of the eraser main body and comprises a button, a connecting plate is arranged in the eraser main body, one side surface of the connecting plate is fixedly connected with one side surface of the button, a telescopic rod is arranged at the joint of the connecting plate and the eraser main body, a spring sleeve is arranged at the joint of the connecting plate and the eraser main body, the spring sleeve is positioned outside the telescopic rod, a sponge is arranged in the eraser main body and positioned at one side of the connecting plate, a fixed support strip is arranged at one side of the sponge and positioned in the eraser main body, a sliding strip is fixedly connected with one side surface of the fixed support strip, a second sliding block is fixedly connected with one side surface of the connecting plate and positioned in the sliding strip, and a wiping strip is arranged on the surface of one side of the blackboard eraser main body.

Preferably, the protection mechanism is located the surface of blackboard eraser main part, the protection mechanism includes first lag, second lag, the spout has been seted up to a side surface of second lag, a side fixed surface of first lag is connected with and connects the sliding frame, the inside of spout has run through first slider, first slider runs through in connecting the sliding frame, a side surface of first slider and the internal connection department of second lag are provided with first spring, the internal connection department of the opposite side surface of first slider and first lag is provided with the second spring.

Preferably, the surface of one side of the blackboard eraser main body is fixedly connected with a sound absorption plate, and the surface of one side of the blackboard eraser main body is provided with a water injection hole.

Preferably, the cross section of the fixing branch is in an L shape, and the internal structure of the sponge is in a grid shape.

Preferably, a through hole is formed in the surface of one side of the blackboard eraser main body, and the button penetrates through the through hole.

Preferably, four groups of spring sleeves are arranged and are uniformly distributed on the surface of one side of the connecting plate.

Preferably, one side of the through hole is provided with a rubber sleeve, the rubber sleeve is positioned in the blackboard eraser main body, and the button penetrates through the rubber sleeve.

Preferably, the first protective sleeve is provided with anti-slip lines on one side surface, and the cross section of the first sliding block is in an I shape.

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

1. the water injection holes are convenient for injecting water into the sponge, the button is convenient for extruding one side of the connecting plate when the button is extruded inwards, the second slide block connected with the surface of one side of the connecting plate slides in the slide bar, so that the connecting plate can extrude the sponge conveniently, the moisture in the sponge is extruded into the wiping strip, and when the sponge is extruded, the spring sleeve and the telescopic rod are stretched, the button is loosened, the elastic force of the spring sleeve enables the connecting plate to reset, one side of the fixed supporting strip is abutted against the connecting plate to play a role in limiting, and through the arranged sound-absorbing plate, a user can conveniently use the blackboard eraser, the sound of absorbing the sound and erasing the blackboard can be inhaled, the noise is reduced, and through the button that sets up, the dust that has effectively avoided the user to produce when using the blackboard eraser is harmful to the human body, is favorable to reducing the dust and flies upward for user's mood is happy, and then has improved user's work efficiency.

2. Through the first slider that sets up, be convenient for slide in the inside of spout, first spring through setting up, be convenient for connect second lag and first slider, second spring through setting up, be convenient for connect first lag and first slider, through the first lag that sets up, the inboard of the first lag of being convenient for supports one side of blackboard eraser, through the second lag that sets up, be convenient for support the opposite side of blackboard eraser, through the first lag that sets up, the second lag, the effectual blackboard eraser of having avoided can be fallen down in the use, can not effectively protect, play fine guard action to the blackboard eraser, be favorable to protecting the blackboard eraser of different specifications, the commonality is stronger, the life of blackboard eraser has been improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the blackboard eraser body and the eraser strip of fig. 1 according to the present invention;

fig. 3 is a side view of the first protective cover and the second protective cover of fig. 1 according to the present invention;

fig. 4 is an enlarged view of a in fig. 1 according to the present invention;

fig. 5 is an enlarged view of B in fig. 2 according to the present invention;

in the figure: 1. a blackboard eraser main body; 2. a first protective cover; 3. connecting the sliding frame; 4. a chute; 5. a water injection hole; 6. a second protective cover; 7. rubbing the strips; 8. a button; 9. a first slider; 10. a first spring; 11. A second spring; 12. a sound-absorbing panel; 13. fixing the branch; 14. a rubber sleeve; 15. a through hole; 16. a connecting plate; 17. a sponge; 18. a spring housing; 19. a telescopic rod; 20. a second slider; 21. and (4) a slide bar.

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. 1-5, the present invention provides a technical solution: a writing board eraser for training and teaching comprises an eraser main body 1, an eraser strip 7, a dust collection mechanism and a protection mechanism, wherein the dust collection mechanism is positioned on one side surface of the eraser main body 1 and comprises a button 8, a connecting plate 16 is arranged inside the eraser main body 1, one side surface of the connecting plate 16 is fixedly connected with one side surface of the button 8, a telescopic rod 19 is arranged at the joint of the connecting plate 16 and the eraser main body 1, a spring sleeve 18 is arranged at the joint of the connecting plate 16 and the eraser main body 1, the spring sleeve 18 is positioned outside the telescopic rod 19, a sponge 17 is arranged inside the eraser main body 1 and positioned on one side of the connecting plate 16, a fixed supporting strip 13 is arranged on one side of the sponge 17, the fixed supporting strip 13 is positioned inside the eraser main body 1, a sliding strip 21 is fixedly connected on one side surface of the fixed supporting strip 13, a second sliding block 20 is, the second sliding block 20 is positioned in the sliding strip 21, the wiping strip 7 is arranged on one side surface of the blackboard eraser main body 1, water can be conveniently injected into the sponge 17 through the arranged water injection hole 5, when the button 8 is conveniently pressed inwards through the arranged button 8, the button 8 presses one side of the connecting plate 16, so that the second sliding block 20 connected to one side surface of the connecting plate 16 slides in the sliding strip 21, the connecting plate 16 presses the sponge 17, water in the sponge 17 is pressed into the wiping strip 7, the spring sleeve 18 and the telescopic rod 19 are stretched during pressing, the button 8 is loosened, the elastic force of the spring sleeve 18 enables the connecting plate 16 to reset, one side of the fixed supporting strip 13 supports against the connecting plate 16 to play a limiting role, and through the arranged sound absorption plate 12, a user can conveniently absorb sound of the blackboard eraser when using the blackboard eraser, noise is reduced, and through the arranged button 8, the dust generated by the user when using the blackboard eraser is effectively prevented from being harmful to the human body, the dust flying is reduced, the mood of the user is pleasant, and the working efficiency of the user is improved.

In this embodiment, preferably, the protection mechanism is located on the surface of the blackboard eraser main body 1, the protection mechanism includes a first protection cover 2 and a second protection cover 6, a sliding groove 4 is formed on a side surface of the second protection cover 6, a connecting sliding frame 3 is fixedly connected to a side surface of the first protection cover 2, a first sliding block 9 penetrates through the sliding groove 4, the first sliding block 9 penetrates through the connecting sliding frame 3, a first spring 10 is arranged at a connection between a side surface of the first sliding block 9 and the second protection cover 6, a second spring 11 is arranged at a connection between another side surface of the first sliding block 9 and the first protection cover 2, the sliding in the sliding groove 4 is facilitated through the arranged first sliding block 9, the second protection cover 6 and the first sliding block 9 are facilitated to be connected through the arranged first spring 10, the first protection cover 2 and the first sliding block 9 are facilitated to be connected through the arranged second spring 11, through the first lag 2 that sets up, the inboard of the first lag 2 of being convenient for supports one side of blackboard eraser, through the second lag 6 that sets up, be convenient for support the opposite side of blackboard eraser, through the first lag 2 that sets up, second lag 6, the effectual blackboard eraser of having avoided may drop in the use, can not effectively protect, play fine guard action to the blackboard eraser, be favorable to protecting the blackboard eraser of different specifications, the commonality is stronger, the life of blackboard eraser has been improved.

In this embodiment, preferably, the sound-absorbing plate 12 is fixedly connected to the surface of one side of the blackboard eraser main body 1, and the water injection hole 5 is formed in the surface of one side of the blackboard eraser main body 1, so that water can be conveniently injected into the sponge 17, and the blackboard eraser can be better used.

In this embodiment, preferably, the cross-sectional shape of the fixing branch 13 is "L" shape, and the internal structure of the sponge 17 is in a grid shape, so as to be convenient for limiting the connecting plate 16 and facilitating better water absorption of the sponge 17.

In this embodiment, preferably, a through hole 15 is formed in a surface of one side of the blackboard eraser body 1, and the button 8 penetrates through the through hole 15, so that the button 8 is conveniently pressed inward outside the blackboard eraser body 1.

In this embodiment, preferably, the number of the spring sleeves 18 is four, and the spring sleeves are uniformly distributed on one side surface of the connecting plate 16, so that the force on one side surface of the connecting plate 16 is balanced, and one side of the sponge 17 is further squeezed.

In this embodiment, preferably, a rubber sleeve 14 is disposed on one side of the through hole 15, the rubber sleeve 14 is located inside the blackboard eraser main body 1, and the button 8 penetrates through the rubber sleeve 14 to perform a sealing function.

In this embodiment, preferably, the first protecting cover 2 has anti-slip lines on a side surface thereof, and the first sliding block 9 has an i-shaped cross section, so that the blackboard eraser can be conveniently and better taken up, and the first sliding block 9 can conveniently penetrate through the connecting sliding frame 3 and the sliding groove 4.

The utility model discloses a theory of operation and use flow: the device is convenient for injecting water into the sponge 17 through the arranged water injection hole 5 in the using process, when the button 8 is convenient to extrude the button 8 inwards through the arranged button 8, the button 8 extrudes one side of the connecting plate 16, so that the second sliding block 20 connected to the surface of one side of the connecting plate 16 slides in the sliding strip 21, the connecting plate 16 extrudes the sponge 17, the moisture in the sponge 17 is extruded into the wiping strip 7, the spring sleeve 18 and the telescopic rod 19 are stretched during extrusion, the button 8 is loosened, the connecting plate 16 is reset through the elastic force of the spring sleeve 18, one side of the fixed supporting strip 13 supports against the connecting plate 16 to play a limiting role, the sound absorption plate 12 is arranged, when a user uses the blackboard eraser, the sound of the blackboard eraser can be absorbed, the noise is reduced, through the arranged button 8, the harm of dust generated when the user uses the blackboard eraser to the human body is effectively avoided, the dust flying is reduced, so that the mood of the user is pleasant, and the working efficiency of the user is improved. Through the first slider 9 that sets up in the use, be convenient for slide in the inside of spout 4, first spring 10 through setting up, be convenient for connect second lag 6 and first slider 9, second spring 11 through setting up, be convenient for connect first lag 2 and first slider 9, through the first lag 2 that sets up, be convenient for first lag 2's inboard supports one side of blackboard eraser, through the second lag 6 that sets up, be convenient for support the opposite side of blackboard eraser, through the first lag 2 that sets up, second lag 6, the effectual blackboard eraser of having avoided can't protect if dropping in the use, play fine guard action to the blackboard eraser, be favorable to protecting the blackboard eraser of different specifications, the commonality is stronger, the life of the blackboard eraser has been improved.

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 training teaching is with board eraser which characterized in that: the blackboard eraser comprises a blackboard eraser main body (1), an eraser strip (7), a dust collection mechanism and a protection mechanism, wherein the dust collection mechanism is positioned on one side surface of the blackboard eraser main body (1), the dust collection mechanism comprises a button (8), a connecting plate (16) is arranged in the blackboard eraser main body (1), one side surface of the connecting plate (16) is fixedly connected with one side surface of the button (8), a telescopic rod (19) is arranged at the joint of the connecting plate (16) and the blackboard eraser main body (1), a spring sleeve (18) is arranged at the joint of the connecting plate (16) and the blackboard eraser main body (1), the spring sleeve (18) is positioned outside the telescopic rod (19), a sponge (17) is arranged in the blackboard eraser main body (1) and on one side of the connecting plate (16), a fixed supporting strip (13) is arranged on one side of the sponge (17), and the fixed supporting strip (13) is positioned in the blackboard eraser, the blackboard eraser is characterized in that a sliding strip (21) is fixedly connected to the surface of one side of the fixed supporting strip (13), a second sliding block (20) is fixedly connected to the surface of one side of the connecting plate (16), the second sliding block (20) is located inside the sliding strip (21), and an erasing strip (7) is arranged on the surface of one side of the blackboard eraser main body (1).

2. A training and teaching tablet eraser as claimed in claim 1, wherein: protection machanism is located the surface of blackboard eraser main part (1), protection machanism includes first lag (2), second lag (6), spout (4) have been seted up to a side surface of second lag (6), a side fixed surface of first lag (2) is connected with and slides frame (3), the inside of spout (4) is run through and is had first slider (9), first slider (9) run through in connecting and slide frame (3), a side surface of first slider (9) is provided with first spring (10) with the internal connection department of second lag (6), the opposite side surface of first slider (9) is provided with second spring (11) with the internal connection department of first lag (2).

3. A training and teaching tablet eraser as claimed in claim 1, wherein: the blackboard eraser is characterized in that a sound absorption plate (12) is fixedly connected to the surface of one side of the blackboard eraser main body (1), and a water injection hole (5) is formed in the surface of one side of the blackboard eraser main body (1).

4. A training and teaching tablet eraser as claimed in claim 1, wherein: the cross section of the fixed branch (13) is L-shaped, and the internal structure of the sponge (17) is latticed.

5. A training and teaching tablet eraser as claimed in claim 1, wherein: a through hole (15) is formed in the surface of one side of the blackboard eraser main body (1), and the button (8) penetrates through the through hole (15).

6. A training and teaching tablet eraser as claimed in claim 1, wherein: four groups of spring sleeves (18) are arranged and are uniformly distributed on the surface of one side of the connecting plate (16).

7. A training and teaching tablet eraser as claimed in claim 5, wherein: one side of the through hole (15) is provided with a rubber sleeve (14), the rubber sleeve (14) is positioned in the blackboard eraser main body (1), and the button (8) penetrates through the rubber sleeve (14).

8. A training and teaching tablet eraser as claimed in claim 2, wherein: the anti-skidding line is arranged on the surface of one side of the first protective sleeve (2), and the cross section of the first sliding block (9) is I-shaped.