CN2163076Y - Rotating self-cleaning blackboard - Google Patents

Abstract

The utility model relates to a rotary blackboard which erases the writing automatically, which belongs to a culture and education article. The blackboard is composed of a blackboard plate surface, an erasing system and a rotary mechanism. The rotary mechanism causes the blackboard to rotate, meanwhile, the erasing system rotates to erase the writing of the blackboard. The utility model has simple structure, low cost and convenient operation; the manual erasing blackboard is replaced by the automatic erasing blackboard to save the teaching time. Meanwhile, the blackboard has no dust and protects the body health of the teachers and students; because the handle rotation of the rotary blackboard is parallel to the plate surface of the blackboard, the utility model doesn't occupy space of the classroom, and the product schedule is compact and is easier to popularize.

Description

Rotating self-cleaning blackboard

The utility model is a kind of rotatable blackboard of wiping writing automatically, belongs to a kind of school supply and stationery.

Chinese patent 85202691 discloses a kind of swinging word and has erased the board, this blackboard can be wiped writing in seal closure, but, because the direction of rotation of its handle is vertical with body of wall, so, the installation of this blackboard bigger space that can account for, and use inconvenience, not attractive in appearance again.

The purpose of this utility model is to invent a kind of direction of rotation with handle and is designed to the blackboard that is parallel to each other with body of wall, it has the complete device of wiping certainly of a cover, can than other products cleaner wipe the blackboard writing, install and do not take more spaces, blackboard easy to use, attractive in appearance.

The utility model is to constitute like this: it is by bearing group 22, last drum gear 16, bottom roll gear 18, blackboard panel 1, last cylinder 2, bottom roll 14, blackboard eraser 4, blackboard eraser 12, driving chain 17, driving chain 10 is formed, blackboard panel 1 is enclosed within on cylinder 2 and the bottom roll 14, last cylinder 2 is installed on the drum gear 16, bottom roll 14 is installed on the bottom roll gear 18, on, bottom roll gear 16 and 18 is fixed on the bearing group 22, bearing group 22 is fixed on the body of wall, fix one at the rear portion of blackboard panel 1 with support plate and write supporting plate 3, support plate is fixed on the body of wall, driving chain 17 connects an end of going up drum gear 16 and bottom roll gear 18, at the middle part of blackboard panel 1 Revolving blackboard is installed and wipes 4, Revolving blackboard is wiped 4 and is installed on the blackboard eraser gear 6, below Revolving blackboard wiping 4, the rear portion of blackboard panel 1 is mounted with a Revolving blackboard and wipes 12, Revolving blackboard is wiped 12 and is fixed on down on the blackboard eraser gear 9, driving chain 7 connects an end of going up blackboard eraser gear 6 and following blackboard eraser gear 9, an end of blackboard gear 9 and bottom roll gear 18 under driving chain 10 connects, connect bottom roll gear 18 and gear 20 with shaft joint 19, the plane of gear 20 is parallel with blackboard panel 1 and body of wall, a hand arm 21 is fixed in the axle center of gear 20, the two ends of Revolving blackboard wiping 4 and Revolving blackboard wiping 12 all are fixed on the bearing 24, bearing 24 is fixed on the body of wall, whole blackboard is all used 15 sealings of sealing frame, in the bottom of sealing frame 15 are movable base plates 26, there are a scraper plate 5 and the surface of Revolving blackboard wiping 4 to fit, scraper plate 13 is fitted with the surface of Revolving blackboard wiping 12, Revolving blackboard is wiped 4 and is used hair, silk is made, as: bristles, and Revolving blackboard wiping 12 usefulness clothes are made, as: flannelette, gear 20 can be connected with a motor.

Compared with prior art; the utility model is simple in structure, cheap, easy to use, change manually erase the board for automatic erasing blackboard saved instructional blocks of time, simultaneously do not have dust, protected that teacher, student's is healthy; and because the handle rotation of Rotary Blackboard is parallel with blackboard panel; so the utility model does not account for the space in classroom, that product is arranged is compact, be more prone to promote, use.

Accompanying drawing 1 is that structural representation of the present utility model, accompanying drawing 2, accompanying drawing 3 are side views of product.

Embodiment of the present utility model: the blackboard panel 1 that rubber-plastics material is made is enclosed within on the bottom roll 14 of last cylinder 2 that elastomeric material makes and elastomeric material making, will go up cylinder 2 is installed on the drum gear 16, bottom roll 14 is installed on the bottom roll gear 18, upper and lower drum gear 16 and 18 usefulness bolts are fixed on the bearing group 22, and then bearing group 22 is fixed on the body of wall with bolt, utilize the support plate that is fixed on the body of wall to fix plastics at the rear portion of blackboard panel 1 and write supporting plate 3, guarantee the quality of writing like this; Metal driving chain 17 connects goes up drum gear 16 and bottom roll gear 18 1 ends, the Revolving blackboard wiping 4 what a is made of the bristles hair is installed at the middle part of blackboard panel 1, Revolving blackboard is wiped 4 and is installed on the blackboard eraser gear 6, below blackboard eraser 4, the rear portion of blackboard panel 1 is mounted with a Revolving blackboard of making of flannelette again and wipes 12, Revolving blackboard is wiped 12 and is fixed on down on the blackboard eraser gear 9, metal driving chain 7 connects an end of going up blackboard eraser gear 6 and following blackboard eraser gear 9, an end of blackboard gear 9 and bottom roll gear 18 under metal driving chain 10 connects, the shaft joint of forming with two groups of gears 19 connects bottom roll gear 18 and gear 20, in order not take up room, make that this product is installed is convenient, the plane of gear 20 and blackboard panel 1 and body of wall are designed to are parallel to each other; A hand arm 21 is fixed in the axle center of gear 20, the two ends of Revolving blackboard wiping 4 and Revolving blackboard wiping 12 all are fixed on the bearing 24, bearing 24 is fixed on the body of wall, sealing frame 15 sealings that whole blackboard is all made of timber, bottom at sealing frame 15 is the base plate 26 of an activity, when chalk dust is many, open this base plate, chalk dust can be drawn out, in order to guarantee to wipe the word effect, fitted in one scraper plate 5 and the surface of Revolving blackboard wiping 4, scraper plate 13 is fitted with the surface of Revolving blackboard wiping 12, contacts with scraper plate simultaneously when blackboard eraser is wiped word like this, scraper plate scrapes the chalk dust on the blackboard eraser.

During use, after writing full word on the blackboard panel, use hand fixed handle, drive shaft coupling 19 by gear 20 and rotate, drive driving chain 17 then and move, make gear 18, gear 16 to rotate, thereby drive the blackboard panel motion; Owing to the rotation of gear 18, driven chain 10 motions, motion by chain 10 makes gear 9 rotate, make again simultaneously chain 7 motions, and driven gear 6 rotates, two blackboard erasers are all rotated, from motion, the track that rotates its travel direction of contact point of wiping with blackboard that looks at the blackboard is opposite, so can more completely the writing on the blackboard be cleaned.

Claims (3)

1, a kind of rotary automatic erasing blackboard, it is by bearing group (22), last drum gear (16), bottom roll gear (18), blackboard panel (1), last cylinder (2), bottom roll (14), blackboard eraser (4), blackboard eraser (12), driving chain (17), driving chain (10) is formed, it is characterized in that: blackboard panel (1) is enclosed within on cylinder (2) and the bottom roll (14), last cylinder (2) is installed on the drum gear (16), bottom roll (14) is installed on the bottom roll gear (18), on, bottom roll gear (16) and (18) are fixed on the bearing group (22), bearing group (22) is fixed on the body of wall, fix one at the rear portion of blackboard panel (1) with support plate and write supporting plate (3), support plate is fixed on the body of wall, an end of drum gear (16) and bottom roll gear (18) in driving chain (17) connection, at the middle part of blackboard panel (1) Revolving blackboard is installed and wipes (4), Revolving blackboard is wiped (4) and is installed on the blackboard eraser gear (6), wipe the below of (4) at Revolving blackboard, the rear portion of blackboard panel (1) is mounted with a Revolving blackboard and wipes (12), Revolving blackboard is wiped (12) and is fixed on down on the blackboard eraser gear (9), an end of blackboard eraser gear (6) and following blackboard eraser gear (9) in driving chain (7) connection, an end of blackboard gear (9) and bottom roll gear (18) under driving chain (10) connects, connect bottom roll gear (18) and gear (20) with shaft joint (19), the plane of gear (20) is parallel with blackboard panel (1) and body of wall, a hand arm (21) is fixed in the axle center of gear (20), the two ends that Revolving blackboard is wiped (4) and Revolving blackboard wiping (12) all are fixed on the bearing (24), bearing (24) is fixed on the body of wall, whole blackboard is all used sealing frame (15) sealing, is movable base plate (26) in the bottom of sealing frame (15).

2, according to the described this rotary automatic erasing blackboard of claim 1, it is characterized in that: fit in the surface that has a scraper plate (5) and Revolving blackboard to wipe (4), scraper plate (13) is fitted with the surface that Revolving blackboard is wiped (12), Revolving blackboard is wiped (4) and is made of hair, silk, as: bristles, and Revolving blackboard wiping (12) is made of cloth, as: flannelette.

3, according to the described this rotary automatic erasing blackboard of claim 1, it is characterized in that: gear (20) can be connected with a motor.

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