CN211843872U

CN211843872U - Novel blackboard eraser

Info

Publication number: CN211843872U
Application number: CN202020112948.7U
Authority: CN
Inventors: 陈洪; 王佳怡; 宋露; 刘燊; 欧幼春
Original assignee: Fuzhou College of Foreign Studies and Trade
Current assignee: Fuzhou Yingte Education Consulting Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-03
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to an eraser field just discloses a novel eraser, which comprises a housin, the inside of casing is rotated and is connected with the rotating turret, the top and the equal fixedly connected with fixed plate in bottom of rotating turret, two the equal fixedly connected with in looks abscission face of fixed plate clears away cloth, the left end fixedly connected with driven gear of rotating turret. This novel blackboard eraser, after being stained with chalk dust on a piece of cloth of cleaing away, the words of timely clearance of no time, can drive driven gear through rotating drive gear and rotate, driven gear can drive rotating turret and fixed plate synchronous rotation in time, and then can change the cloth of cleaing away who stretches out the casing, make comparatively clean cloth of cleaing away stretch to the casing outside, the inside of casing is received to the cloth of cleaing away who is stained with chalk dust, can use comparatively clean cloth of cleaing away to clear away the chalk word, it is better to the effect of cleaing away of chalk word, and it is very convenient to change the cloth of cleaing away, time saving and labor saving, can not occupy the teaching.

Description

Novel blackboard eraser

Technical Field

The utility model relates to an eraser field specifically is a novel eraser.

Background

The blackboard is not particularly a black board, and is a plane capable of being repeatedly written by chalk in the traditional sense, the board is hard, and is mainly used for teaching.

At present, common blackboard eraser is very good, and when writing content on the blackboard was clear away, the chalk dust can adsorb on the blackboard eraser, but along with the use of blackboard eraser, the chalk dust of adsorbing on the blackboard eraser can lead to the clear effect variation of blackboard eraser, is difficult to clear away the chalk word on the blackboard, leads to the writing effect variation of teaching content. Therefore, a novel blackboard eraser is designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel blackboard eraser, solved along with the use of blackboard eraser, the chalk dust that adsorbs on the blackboard eraser can lead to the effect variation of cleaing away of blackboard eraser, is difficult to clear away the chalk word on the blackboard, leads to the problem that the writing effect variation of teaching content.

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

the utility model provides a novel blackboard eraser, includes the casing, the inside of casing is rotated and is connected with the rotating turret, the equal fixedly connected with fixed plate in top and the bottom of rotating turret, two the equal fixedly connected with in looks abscission face of fixed plate clears away cloth.

The left end fixedly connected with driven gear of rotating turret, the top left side of casing is rotated and is connected with the drive gear with driven gear meshing, the top fixedly connected with fixed block of casing, reset mechanism is installed at the top of fixed block.

The inside sliding connection of left end of fixed block has the inserted bar, the right-hand member fixedly connected with pulling rope of inserted bar, the right-hand member of pulling rope and canceling release mechanical system's bottom fixed connection, the top and the equal fixedly connected with horizontal spring in bottom of inserted bar, horizontal spring's right-hand member and fixed block fixed connection, two locating holes have been seted up to drive gear's right side wall, the left end of inserted bar extends to the inside of locating hole.

Furthermore, two vertical grooves are formed in the top of the fixing block, and a moving plate is connected to the inside of each vertical groove in a sliding mode.

Further, canceling release mechanical system include with the top fixed connection's of movable plate catch bar, the right-hand member and the catch bar fixed connection of pulling rope, the top fixedly connected with catch plate of catch bar, the vertical spring of bottom fixedly connected with of catch plate, the bottom of vertical spring and the top fixed connection of fixed block.

Further, the sliding tray that corresponds with the inserted bar is seted up to the left surface of fixed block, the left end of inserted bar be located the inside of sliding tray and with sliding tray sliding connection, the guide way has all been seted up to the top and the bottom of sliding tray, the inside sliding connection of guide way has the deflector, horizontal spring's left end and the right flank fixed connection of deflector, horizontal spring's right-hand member and the right side inner wall fixed connection of guide way.

Furthermore, the bottom of the cleaning cloth is provided with through holes which are uniformly distributed.

Furthermore, the inner walls of the left side and the right side of the shell are provided with rotating grooves, and rotating discs fixedly connected with the rotating frames are rotatably connected inside the rotating grooves.

The utility model has the advantages that:

1. the utility model discloses a, after being stained with chalk dust on a piece of cleaing away cloth, the words of not having time in time to clear up, can drive driven gear through rotating drive gear and rotate, can drive rotating turret and fixed plate synchronous rotation in the time of driven gear rotation, and then can change the cloth of cleaing away who stretches out the casing, make comparatively clean cloth of cleaing away stretch the casing outside, the inside of casing is received to the cloth of cleaing away who is stained with chalk dust, can use comparatively clean cloth of cleaing away to clear away the chalk word, it is better to the effect of cleaing away of chalk word, and it is very convenient to change the cloth of cleaing away, time saving and labor saving.

2. The utility model discloses a, push down canceling release mechanical system, canceling release mechanical system can drive the pulling rope and remove, the pulling rope can be taken out the inserted bar from the locating hole when moving along with canceling release mechanical system, make drive gear can rotate, after the clear cloth of cleaing away unscrewed casing, loosen canceling release mechanical system, the inserted bar moves left under horizontal spring's effect, in the left end of inserted bar inserts the locating hole, fix drive gear, and then fixed the position of cleaing away cloth, it should clear away the chalk word of cloth on to the blackboard and clean to facilitate the use, and clean effect is better.

Drawings

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

fig. 2 is an enlarged view of a in fig. 1.

In the figure: 1. a housing; 2. a rotating frame; 3. a fixing plate; 4. removing the cloth; 5. a driven gear; 6. a drive gear; 7. a fixed block; 8. a reset mechanism; 9. inserting a rod; 10. a horizontal spring; 11. positioning holes; 12. pulling the rope; 13. a vertical slot; 14. moving the plate; 15. a push rod; 16. a push plate; 17. a vertical spring; 18. a sliding groove; 19. a guide groove; 20. a guide plate; 21. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-2: a novel blackboard eraser comprises a shell 1, wherein a rotating frame 2 is rotatably connected inside the shell 1, rotating grooves are formed in the inner walls of the left side and the right side of the shell 1, a rotating disc fixedly connected with the rotating frame 2 is rotatably connected inside the rotating grooves, the rotating disc is driven to rotate in the rotating grooves when the rotating frame 2 rotates, the rotating disc can keep the rotating frame 2 to rotate stably by matching with the rotating grooves, the rotating frame 2 is prevented from deviating, fixed plates 3 are fixedly connected to the top and the bottom of the rotating frame 2, cleaning cloth 4 is fixedly connected to the opposite surfaces of the two fixed plates 3, through holes 21 which are uniformly distributed are formed in the bottom of the cleaning cloth 4, the fixed plates 3 can provide stable support for the cleaning cloth 4, so that when the cleaning cloth 4 passes through chalk characters on a blackboard, the chalk characters can be effectively cleaned, the contact area between the cleaning cloth 4 and the chalk characters can be increased by arranging the through holes 21, so that the cleaning cloth 4 has better cleaning effect on chalk characters.

The left end of the rotating frame 2 is fixedly connected with a driven gear 5, the left side of the top of the shell 1 is rotatably connected with a driving gear 6 meshed with the driven gear 5, the top of the shell 1 is fixedly connected with a fixed block 7, the top of the fixed block 7 is provided with a resetting mechanism 8, when one piece of clearing cloth 4 is full of chalk dust, no time is needed for timely clearing, the driving gear 6 can be rotated to drive the driven gear 5 to rotate, the rotating frame 2 and the fixed plate 3 can be driven to synchronously rotate when the driven gear 5 rotates, and then the clearing cloth 4 extending out of the shell 1 can be replaced, so that the cleaner clearing cloth 4 extends out of the shell 1, the clearing cloth 4 full of chalk dust is collected in the shell 1, cleaner clearing cloth 4 can be used for clearing chalk characters, the clearing effect of the chalk characters is better, the clearing cloth 4 is very convenient to replace, time and labor are saved, the teaching time is not occupied.

An inserting rod 9 is connected inside the left end of the fixed block 7 in a sliding manner, a pulling rope 12 is fixedly connected at the right end of the inserting rod 9, the right end of the pulling rope 12 is fixedly connected with the bottom of the reset mechanism 8, a horizontal spring 10 is fixedly connected with the top and the bottom of the inserting rod 9, the right end of the horizontal spring 10 is fixedly connected with the fixed block 7, two positioning holes 11 are formed in the right side wall of the driving gear 6, the left end of the inserting rod 9 extends into the positioning holes 11, the reset mechanism 8 is pressed downwards, the reset mechanism 8 can drive the pulling rope 12 to move, the inserting rod 9 can be pulled out of the positioning holes 11 when the pulling rope 12 moves along with the reset mechanism 8, the driving gear 6 can rotate, after the clean cleaning cloth 4 is screwed out of the shell 1, the reset mechanism 8 is loosened, the inserting rod 9 moves leftwards under the action of the horizontal spring 10, the left end of the inserting rod 9 is inserted into, and then fixed and clear away the position of cloth 4, conveniently use this to clear away cloth 4 and clean the chalk word on the blackboard, and clean the effect better.

Can stimulate inserted bar 9 through 8 cooperation pulling ropes 12 of canceling release mechanical system, two perpendicular grooves 13 have been seted up at the top of fixed block 7, the inside sliding connection who erects groove 13 has movable plate 14, canceling release mechanical system 8 includes catch bar 15 with the top fixed connection of movable plate 14, the right-hand member and catch bar 15 fixed connection of pulling ropes 12, the top fixedly connected with catch bar 16 of catch bar 15, the vertical spring 17 of the bottom fixedly connected with of catch bar 16, the bottom of vertical spring 17 and the top fixed connection of fixed block 7, push bar 16 pushes down, can push away catch bar 15 and movable plate 14 when catch bar 16 descends in perpendicular groove 13, this in-process, catch bar 15 can be pulling the right-hand member decline of pulling ropes 12, and then pull inserted bar 9 and slide right.

The reset mechanism 8 can pull the inserted link 9 to move rightwards, the horizontal spring 10 can pull the inserted link 9 to move leftwards, the left side surface of the fixed block 7 is provided with a sliding groove 18 corresponding to the inserted link 9, the left end of the inserted link 9 is positioned inside the sliding groove 18 and is in sliding connection with the sliding groove 18, the top and the bottom of the sliding groove 18 are both provided with guide grooves 19, the inside of the guide groove 19 is in sliding connection with a guide plate 20, the left end of the horizontal spring 10 is fixedly connected with the right side surface of the guide plate 20, the right end of the horizontal spring 10 is fixedly connected with the right inner wall of the guide groove 19, when the push plate 16 is loosened, the vertical spring 17 pushes the push plate 16, the push rod 15 and the push rod 14 to ascend, in the process, the horizontal spring moving plate 10 can push the guide plate 20 to slide leftwards in the guide groove 19 by resetting, the inserted link 9 is further driven to slide leftwards in the sliding groove 18, the left end of the inserted link, thereby fixing the position of the drive gear 6.

To sum up, the utility model discloses when using, in the left end of inserted bar 9 inserts locating hole 11, fix drive gear 6, and then fixed the position of cleaing away cloth 4, fixed plate 3 can provide the outrigger to cleaing away cloth 4, make and clear away cloth 4 when the chalk word on the blackboard, can effectively clear away the chalk word, the area of contact of cloth 4 and chalk word can be clear away in the setting of through-hole 21, make this clear away of cloth 4 to the chalk word clear away the effect better, it should clean the chalk word on the blackboard to facilitate the use cloth 4, and clean the effect is better.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A novel blackboard eraser comprises a shell (1), and is characterized in that: a rotating frame (2) is rotatably connected inside the shell (1), the top and the bottom of the rotating frame (2) are fixedly connected with fixed plates (3), and the opposite surfaces of the two fixed plates (3) are fixedly connected with cleaning cloth (4);

a driven gear (5) is fixedly connected to the left end of the rotating frame (2), a driving gear (6) meshed with the driven gear (5) is rotatably connected to the left side of the top of the shell (1), a fixed block (7) is fixedly connected to the top of the shell (1), and a reset mechanism (8) is installed at the top of the fixed block (7);

the inside sliding connection of left end of fixed block (7) has inserted bar (9), the right-hand member fixedly connected with pulling rope (12) of inserted bar (9), the right-hand member of pulling rope (12) and the bottom fixed connection of canceling release mechanical system (8), the top and the equal fixedly connected with horizontal spring in bottom (10) of inserted bar (9), the right-hand member and fixed block (7) fixed connection of horizontal spring (10), two locating holes (11) have been seted up to the right side wall of drive gear (6), the left end of inserted bar (9) extends to the inside of locating hole (11).

2. The novel blackboard eraser according to claim 1, characterized in that: two vertical grooves (13) are formed in the top of the fixing block (7), and a moving plate (14) is connected to the inside of each vertical groove (13) in a sliding mode.

3. The novel blackboard eraser according to claim 2, characterized in that: reset mechanism (8) include catch bar (15) with the top fixed connection of movable plate (14), the right-hand member and catch bar (15) fixed connection of pulling rope (12), the top fixedly connected with catch plate (16) of catch bar (15), the vertical spring (17) of bottom fixedly connected with of catch plate (16), the bottom of vertical spring (17) and the top fixed connection of fixed block (7).

4. The novel blackboard eraser according to claim 1, characterized in that: sliding tray (18) that correspond with inserted bar (9) are seted up to the left surface of fixed block (7), the left end of inserted bar (9) be located the inside of sliding tray (18) and with sliding tray (18) sliding connection, guide way (19) have all been seted up to the top and the bottom of sliding tray (18), the inside sliding connection of guide way (19) has deflector (20), the right flank fixed connection of the left end of horizontal spring (10) and deflector (20), the right-hand member of horizontal spring (10) and the right side inner wall fixed connection of guide way (19).

5. The novel blackboard eraser according to claim 1, characterized in that: the bottom of the cleaning cloth (4) is provided with through holes (21) which are uniformly distributed.

6. The novel blackboard eraser according to claim 1, characterized in that: the inner walls of the left side and the right side of the shell (1) are provided with rotating grooves, and rotating discs fixedly connected with the rotating frames (2) are rotatably connected inside the rotating grooves.